HIGH-PRESSURE CLEANING DEVICE

Abstract

A high-pressure cleaning device includes a carrier, a power unit, a valve assembly, a high-pressure water gun and a floor brush. The power unit is mounted on the carrier. The power unit includes a pump. The valve assembly is mounted on the carrier. The valve assembly includes a liquid inlet, a first liquid outlet and a second liquid outlet. The liquid inlet is in communication with an outlet of the pump. The high-pressure water gun is in communication with the first liquid outlet through a pipeline. The floor brush is mounted on a bottom of the carrier. The floor brush includes a nozzle assembly. The nozzle assembly is in communication with the second liquid outlet through a pipeline. The valve assembly is configured to be switchable between at least two of the following positions, include position one and position two.

Claims

1. A high-pressure cleaning device, comprising: a carrier; a power unit, wherein the power unit is mounted on the carrier, wherein the power unit comprises a pump; a valve assembly, wherein the valve assembly is mounted on the carrier, wherein the valve assembly comprises a liquid inlet, a first liquid outlet and a second liquid outlet, wherein the liquid inlet is in communication with an outlet of the pump; a high-pressure water gun, wherein the high-pressure water gun is in communication with the first liquid outlet through a pipeline; and a floor brush, wherein the floor brush is mounted on a bottom of the carrier, wherein the floor brush comprises a nozzle assembly, wherein the nozzle assembly is in communication with the second liquid outlet through a pipeline; wherein the valve assembly is configured to be switchable between at least two of the following positions: position one and position two; wherein, in the position one, the liquid inlet is in communication with the first liquid outlet, and the liquid inlet is disconnected from the second liquid outlet; and wherein, in the position two, the liquid inlet is in communication with the second liquid outlet, and the liquid inlet is disconnected from the first liquid outlet.

2. The high-pressure cleaning device of claim 1, wherein the valve assembly is configured to be further switchable to position three, wherein, in position three, the liquid inlet is simultaneously in communication with the first liquid outlet and the second liquid outlet.

3. The high-pressure cleaning device of claim 1, wherein the power unit is a DC motor pump, an AC motor pump or an internal combustion engine driven pump.

4. The high-pressure cleaning device of claim 1, wherein the power unit further comprises a battery pack, wherein the battery pack is used to supply power to the pump.

5. The high-pressure cleaning device of claim 4, wherein the power unit further comprises a housing, wherein the housing has a first accommodation cavity and a second accommodation cavity, wherein the pump is mounted in the first accommodation cavity, wherein the battery pack is mounted in the second accommodation cavity, wherein the second accommodation cavity has a detachable compartment cover.

6. The high-pressure cleaning device of claim 1, wherein the carrier comprises a frame and wheels, wherein one end of the frame is arranged with a handle arm, wherein an upper end of the handle arm is arranged with a handle.

7. The high-pressure cleaning device of claim 6, wherein the handle arm comprises a first section and a second section, wherein the first section is fixedly connected to the frame, wherein the second section is movably connected to the first section, so that the second section can be switched between an expanded position and a folded position relative to the first section, wherein when the second section is in the expanded position, an overall height of the handle arm can be increased, wherein when the second section is in the folded position, the overall height of the handle arm can be reduced.

8. The high-pressure cleaning device of claim 7, wherein a holding mechanism is arranged between the first section and the second section, wherein the holding mechanism is configured to be able to hold the first section in the expanded position when the first section is in the expanded position, and to be able to release the first section from the expanded position.

9. The high-pressure cleaning device of claim 8, wherein the holding mechanism comprises a first locking block and a second locking block, wherein an end face of the first locking block and an end face of the second locking block are oppositely arranged and abut against each other, wherein a clamping mechanism is arranged between the first locking block and the second locking block, wherein the clamping mechanism is configured to be able to adjust a magnitude of a pressing force between the first locking block and the second locking block; wherein one of the first locking block and the second locking block is fixedly connected to the first section, and the other is fixedly connected to the second section.

10. The high-pressure cleaning device of claim 6, wherein the valve assembly is mounted on the handle arm or the handle.

11. The high-pressure cleaning device of claim 6, wherein the frame and/or the handle arm is arranged with a hanger for storing the high-pressure water gun and/or a pipeline of the high-pressure water gun.

12. The high-pressure cleaning device of claim 6, wherein an end of the frame away from the handle arm is arranged with an anti-collision beam.

13. The high-pressure cleaning device of claim 6, wherein the wheels comprise traveling wheels and a steering wheel, wherein the traveling wheels are located on both sides of the frame, the steering wheel is located at a front end or a rear end of the frame; wherein the floor brush is located between the traveling wheels on both sides, and the floor brush is located behind or in front of the steering wheel.

14. The high-pressure cleaning device of claim 1, further comprising an auxiliary bracket, wherein the auxiliary bracket is detachably connected to the carrier, wherein the power unit is mounted on the auxiliary bracket.

15. The high-pressure cleaning device of claim 1, wherein the floor brush comprises a cover shell, wherein the cover shell is fixedly mounted on a bottom of the carrier, wherein a bottom of the cover shell is open, wherein bristles are arranged on an edge of the bottom of the cover shell, wherein the nozzle assembly is mounted inside the cover shell.

16. The high-pressure cleaning device of claim 15, wherein the nozzle assembly comprises a rotating member and a nozzle, wherein the rotating member is rotatably connected to the cover shell or the carrier, wherein a flow passage is arranged inside the rotating member, wherein the nozzle is mounted on the rotating member, and the nozzle is in communication with the flow passage, wherein the flow passage is in communication with the second liquid outlet.

17. The high-pressure cleaning device of claim 16, wherein the nozzle is configured such that when water flow is ejected from the nozzle, a reaction force produced by the water flow against the nozzle can drive the rotating member to rotate.

18. The high-pressure cleaning device of claim 16, wherein a fixed pipe joint is arranged on the cover shell or the carrier, wherein the flow passage of the rotating member is in communication with one end of the fixed pipe joint, wherein the other end of the fixed pipe joint is in communication with the second liquid outlet through a pipeline, wherein a mechanical sealing unit is arranged between the rotating member and the fixed pipe joint.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0090] FIG. 1 is a perspective view of the high-pressure cleaning device according to at least one embodiment of the disclosure.

[0091] FIG. 2 is a schematic diagram of the high-pressure cleaning device according to at least one embodiment of the disclosure.

[0092] FIG. 3 is a side view of the high-pressure cleaning device according to at least one embodiment of the disclosure.

[0093] FIG. 4 is a rear view of the high-pressure cleaning device according to at least one embodiment of the disclosure.

[0094] FIG. 5 is an A-A sectional view of FIG. 4.

[0095] FIG. 6 is a front view of the floor brush according to at least one embodiment of the disclosure.

[0096] FIG. 7 is a B-B sectional view of FIG. 6.

[0097] FIG. 8 is a bottom view of the floor brush according to at least one embodiment of the disclosure.

[0098] FIG. 9 is a perspective view of the auxiliary bracket and its accessories according to at least one embodiment of the disclosure.

[0099] FIG. 10 is a perspective view of the auxiliary bracket and its accessories in another state according to at least one embodiment of the disclosure.

[0100] FIG. 11 is a perspective view of the frame according to at least one embodiment of the disclosure.

[0101] FIG. 12 is a schematic diagram illustrating the working principle of an electrical device in one state according to at least one embodiment of the disclosure.

[0102] FIG. 13 is a schematic diagram illustrating the working principle of the electrical device in another state according to at least one embodiment of the disclosure.

[0103] FIG. 14 is a perspective view of a high-pressure cleaning device according to at least one embodiment of the disclosure.

[0104] FIG. 15 is a front view of the high-pressure cleaning device in one state according to at least one embodiment of the disclosure.

[0105] FIG. 16 is a A-A sectional view of FIG. 15.

[0106] FIG. 17 is an enlarged view of area I in FIG. 16.

[0107] FIG. 18 is a front view of the high-pressure cleaning device in another state according to at least one embodiment of the disclosure.

[0108] FIG. 19 is a B-B sectional view of FIG. 18.

[0109] FIG. 20 is an enlarged view of area II in FIG. 19.

[0110] FIG. 21 is an exploded view of a plug assembly according to at least one embodiment of the disclosure.

[0111] FIG. 22 is an exploded view of the plug assembly from another angle according to at least one embodiment of the disclosure.

[0112] FIG. 23 is a schematic diagram illustrating the working principle of an electrical device according to at least one embodiment of the disclosure.

[0113] FIG. 24 is a schematic diagram of the internal circuit of a controller according to at least one embodiment of the disclosure.

[0114] FIG. 25 is a perspective view of the high-pressure cleaning device according to at least one embodiment of the disclosure.

[0115] FIG. 26 is a perspective view of the internal structure of the high-pressure cleaning device in FIG. 25.

[0116] FIG. 27 is an exploded view of the controller in FIG. 26.

[0117] FIG. 28 is an exploded view of the water-cooling channel assembly in FIG. 27.

[0118] FIG. 29 is a schematic structural diagram of the water-cooling channel assembly from another angle in FIG. 27.

[0119] FIG. 30 is an exploded view of the motor pump assembly in FIG. 26.

[0120] FIG. 31 is a perspective view of the pump assembly from another angle in FIG. 30.

[0121] FIG. 32 is a perspective view of a high-pressure cleaning device according to at least one embodiment of the disclosure.

[0122] FIG. 33 is an exploded view of the high-pressure cleaning device in FIG. 32.

[0123] FIG. 34 is a partially enlarged view of FIG. 33.

[0124] FIG. 35 is a perspective view of the flip cover from another angle in FIG. 33.

[0125] FIG. 36 is an exploded view of the housing, rotating shaft, and elastic structure in FIG. 33.

[0126] FIG. 37 is a perspective view of the elastic structure in FIG. 36.

[0127] FIG. 38 is a partially enlarged view of FIG. 36.

DETAILED DESCRIPTION

[0128] It should be noted that, expressions front, rear, left and right indicating directions in the disclosure are general terms for various directions of garden tools by those skilled in the art, which means that a forward direction of the garden tool is front, and a reverse direction is rear. A left hand side of an operator when riding on the garden tool is a left side, and a right hand side of an operator when riding on the garden tool is a right side.

[0129] Please refer to FIG. 1-11, the following is a detailed explanation of the technical solution of the disclosure in combination with specific embodiments:

[0130] Please refer to FIG. 1-4, the high-pressure cleaning device provided by the embodiment of the disclosure includes a carrier, a power unit, a valve assembly 30, a high-pressure water gun 40 and a floor brush 50. The power unit includes a pump 20 and a motor.

[0131] Please refer to FIG. 1, 3, 4, 11, in a specific embodiment, the carrier may include a frame 10 and wheels, wherein one end of the frame 10 is arranged with a handle arm 14, and an upper end of the handle arm 14 is arranged with a handle 15. This embodiment provides a hand-pushed carrier. It should be understood that the disclosure has no special requirements for the driving mode of the carrier. For example, in some other embodiments, the carrier can also be an electric carrier, an internal combustion engine carrier, a trailer carrier, etc.

[0132] Please refer to FIG. 1, 3, 11, in an optional embodiment of the disclosure, an end of the frame 10 away from the handle arm 14 is arranged with a anti-collision beam 13. The anti-collision beam 13 can protect the equipment on the carrier and avoid collisions. In a specific embodiment, the frame 10 may include, for example, a skeleton integrally bent from steel pipes, and an installation plate mounted on the skeleton for installing various electrical equipment. The anti-collision beam 13 can be integrally bent with the skeleton. It should be understood that the specific forming method of the frame 10 is not limited to the above embodiment. Any assembly means that can form a stable frame 10 structure should be applicable to the disclosure.

[0133] Please refer to FIG. 1, 3, 4, in an optional embodiment of the disclosure, the wheels comprise traveling wheels 11 and a steering wheel 12, wherein the traveling wheels 11 are located on both sides of the frame 10, wherein the steering wheel 12 is located at a front end or a rear end of the frame 10. The floor brush 50 is located between the traveling wheels 11 on both sides, and the floor brush 50 is located behind or in front of the steering wheel 12. In this embodiment, there are two traveling wheels 11 and one steering wheel 12, where the steering wheel 12 can be a caster wheel, for example. In some other embodiments, the steering wheel 12 can also be other types of steering structures, such as a multi-link steering structure. This embodiment places the floor brush 50 between the wheels, which can provide some protection for the floor brush 50. It should be understood that the installation position of the floor brush 50 is not unique. For example, in some other embodiments, the floor brush 50 can also be mounted at the front end, rear end, or sides of the frame 10, or multiple floor brushes 50 can be set at different positions.

[0134] Please refer to FIG. 1, 3, in an optional embodiment of the disclosure, the handle arm 14 comprises a first section 141 and a second section 142, wherein the first section 141 is fixedly connected to the frame 10, wherein the second section 142 is movably connected to the first section 141, so that the second section 142 can be switched between an expanded position and a folded position relative to the first section 141. When the second section 142 is in the expanded position, the overall height of the handle arm 14 can be increased, and when the second section 142 is in the folded position, the overall height of the handle arm 14 can be reduced. Specifically, FIG. 3 shows the expanded state of the second section 142. When the second section 142 needs to be folded, it can be flipped downward in the direction shown by the dotted arrow in the figure to a position adjacent to the first section 141. In this embodiment, the second section 142 is hinged to the first section 141, but it should be understood that the connection method between the second section 142 and the first section 141 is not unique. For example, in some other embodiments, the second section 142 can also be folded and expanded through a multi-link mechanism. When the second section 142 is expanded, the handle arm 14 has sufficient length for the user to push while standing, and when the second section 142 is folded, it can reduce the overall height of the high-pressure cleaning device and be more convenient to store and transport the high-pressure cleaning devices.

[0135] Please refer to FIG. 4, 5, in an optional embodiment of the disclosure, a holding mechanism 16 is arranged between the first section 141 and the second section 142. The holding mechanism 16 is configured to be able to hold the first section 141 in the expanded position when it is in the expanded position, and to be able to release the first section 141 from the expanded position. In a specific embodiment, the holding mechanism 16 comprises a first locking block 161 and a second locking block 162. An end face of the first locking block 161 and an end face of the second locking block 162 are oppositely arranged and abut against each other. A clamping mechanism is arranged between the first locking block 161 and the second locking block 162. The clamping mechanism is configured to be able to adjust the magnitude of the pressing force between the first locking block 161 and the second locking block 162. One of the first locking block 161 and the second locking block 162 is fixedly connected to the first section 141, and the other is fixedly connected to the second section 142.

[0136] The clamping mechanism may include, for example, a bolt 163 and a hand-adjustable nut 164. The bolt 163 passes through the first locking block 161 and the second locking block 162 in sequence. The head of the bolt 163 presses against the first locking block 161, and the hand-adjustable nut 164 is connected to the bolt 163 and presses against the second locking block 162. When the second section 142 is in the expanded position, the hand-adjustable nut 164 can be tightened to keep the second section 142 and the first section 141 relatively fixed, facilitating the user's pushing of the high-pressure cleaning device. When the second section 142 needs to be folded, the hand-adjustable nut 164 can be loosened, allowing the second section 142 to swing freely relative to the first section 141. In a further embodiment, toothed surfaces can be arranged on the relative end faces of the first locking block 161 and the second locking block 162 to further increase the relative motion resistance when they are clamped.

[0137] Please refer to FIG. 1, in an optional embodiment of the disclosure, the frame 10 and/or the handle arm 14 is arranged with a hanger for storing the high-pressure water gun 40 and/or a pipeline of the high-pressure water gun 40. Specifically, the hanger may include, for example, a first hanger 17 for fixing the high-pressure water gun 40, and a second hanger 18 for winding the water pipe.

[0138] Please refer to FIG. 1-4, the power unit is mounted on the carrier. In a specific embodiment, the power unit may be an AC motor pump or a DC motor pump. The carrier is also arranged with a battery pack for supplying power to the pump. When an AC pump is chosen, a necessary inverter should also be set up to achieve DC/AC conversion. This embodiment adopts an AC pump or DC pump which can not only ensure sufficient power output, but also avoid the noise and pollution problems caused by internal combustion engines. It should be noted that in some other embodiments, if power and pollution issues are not considered, the AC motor pump or DC motor pump can also be replaced by an internal combustion engine driven pump.

[0139] Please refer to FIG. 1, 3, in an optional embodiment of the disclosure, the power unit also includes a housing 61. The housing 61 is arranged with a first accommodation cavity and a second accommodation cavity. The pump 20 is mounted in the first accommodation cavity, and the battery pack is mounted in the second accommodation cavity. The second accommodation cavity is arranged with a detachable compartment cover 611. This embodiment integrates the pump 20 and the battery pack in one housing 61, making the high-pressure cleaning device more aesthetically pleasing as a whole, while also improving the dust and water resistance performance of the high-pressure cleaning device.

[0140] Please refer to FIG. 2, 4, the valve assembly 30 is mounted on the carrier. The valve assembly 30 includes a liquid inlet, a first liquid outlet and a second liquid outlet, where the liquid inlet is in communication with the outlet of the pump 20. The high-pressure water gun 40 is in communication with the first liquid outlet through a pipeline. The nozzle assembly of the floor brush 50 is in communication with the second liquid outlet through a pipeline. The valve assembly 30 is configured to be switchable between at least two of the following positions: position one and position two. When the valve assembly 30 is in the position one, the liquid inlet is in communication with the first liquid outlet, and the liquid inlet is disconnected from the second liquid outlet. When the valve assembly 30 is in position two, the liquid inlet is in communication with the second liquid outlet, and the liquid inlet is disconnected from the first liquid outlet. In some other embodiments, the valve assembly 30 can also be switched to position three. when the valve assembly 30 is in the position three, the liquid inlet is simultaneously in communication with the first liquid outlet and the second liquid outlet.

[0141] Users can freely control the flow direction of the cleaning water according to their needs. In a specific embodiment, the valve assembly 30 can be either a manual valve or an electric valve. When using a manual valve, the valve assembly 30 can be mounted on the handle arm 14 in a position that can be reached by the user. Specifically, the valve assembly 30 can be mounted on the second section 142, as shown by the solid line in FIG. 4, or it can be mounted on the first section 141, as shown by the dotted line in FIG. 4. When using an electric valve, a switch for the electric valve can be mounted on the handle arm 14 in a position that can be reached by the user, allowing the user to switch at any time.

[0142] Please refer to FIG. 1, 9-11, in an optional embodiment of the disclosure, the high-pressure cleaning device also includes an auxiliary bracket 60. The auxiliary bracket 60 is detachably connected to the carrier, and the pump 20 is mounted on the auxiliary bracket 60. Users can remove the auxiliary bracket 60 from the frame 10 as a whole and use it as a temporary fixed high-pressure cleaning device, this further expands the applicable scenarios of the high-pressure cleaning device.

[0143] Please refer to FIG. 11, in a specific embodiment, a bearing plate for placing the auxiliary bracket 60 can be arranged on the frame 10, for example. A limiting member 102 can be arranged at one end of the bearing plate, and a clamping bolt 101 can be arranged at the other end. Users can lock or loosen the auxiliary bracket 60 through the clamping bolt 101, which is simple and convenient to operate.

[0144] Please refer to FIG. 1, 3, 4, 6-8, the floor brush 50 is mounted on the bottom of the carrier. The floor brush 50 includes a nozzle assembly, and the nozzle assembly is connected to the second liquid outlet through a pipeline. Specifically, the floor brush 50 includes a cover shell 51. The cover shell 51 is fixedly mounted on the bottom of the carrier, and the bottom of the cover shell 51 is open. Bristles 52 are arranged on the edge of the bottom of the cover shell 51, and the nozzle assembly is mounted inside the cover shell 51.

[0145] In a specific embodiment, the nozzle assembly includes a rotating member 55 and a nozzle 57. The rotating member 55 is rotatably connected to the cover shell 51 or the carrier. A flow passage 56 is arranged inside the rotating member 55. The nozzle 57 is mounted on the rotating member 55, and the nozzle 57 is in communication with the flow passage 56. The flow passage 56 is in communication with the second liquid outlet. Specifically, a fixed pipe joint 53 is arranged on the cover shell 51 or the carrier. One end of the flow passage 56 of the rotating member 55 is in communication with the fixed pipe joint 53, and the other end of the fixed pipe joint 53 is in communication with the second liquid outlet through a pipeline. A mechanical sealing unit 54 is arranged between the rotating member 55 and the fixed pipe joint 53. The nozzle 57 is configured so that when water flow is ejected from the nozzle 57, the reaction force produced by the water flow against the nozzle 57 can drive the rotating member 55 to rotate. It should be understood that the driving method of the rotating member 55 is not unique. For example, in some other embodiments, the rotating member 55 can also be driven by an electric motor.

[0146] In summary, the high-pressure cleaning device of the disclosure integrates a high-pressure cleaning device, a high-pressure water gun 40 and a floor brush 50 on one carrier. Users can control the operation of the cleaning water gun or floor brush 50 according to actual needs. When users operate the floor brush 50 for cleaning, they only need to provide the pushing force for the carrier to move, without having to bear the weight of the high-pressure water gun 40 and floor brush 50. This greatly reduces the user's workload, improves comfort, and thus can adapt to large-scale cleaning tasks. The handle arm 14 of the disclosure can be folded and expanded. When the second section 142 is expanded, the handle arm 14 has sufficient length for the user to push while standing, and when the second section 142 is folded, it can reduce the overall height of the high-pressure cleaning device, facilitating storage and transportation. The disclosure adopts an AC pump or DC pump which can not only ensure sufficient power output, but also avoid the noise and pollution problems caused by internal combustion engines. Users can remove the auxiliary bracket 60 from the frame 10 as a whole, and the power unit can be used independently or adapted to other machines, further expanding the applicable scenarios of the high-pressure cleaning device.

[0147] The electrical device provided by the disclosure includes, but is not limited to, electric motors, water pumps, or fans, and can even be lighting devices or heating devices. The disclosure is combined with a gardening tool, specifically a high-pressure cleaning device, to explain the technical solution in detail. It should be understood that when the disclosure is applied to gardening tools, the applicable products include, but are not limited to, lawn mowers, sweepers, snow blowers, chain saws, blowers, and others.

[0148] Please refer to FIG. 12-23, the high-pressure cleaning device provided by the embodiment of the disclosure includes a motor pump assembly 30a, a controller 70a, a plug assembly 50a, and a conversion switch 60a. The controller 70a is electrically connected to the motor pump assembly 30a to control the operation of the motor pump assembly 30a. The controller 70a is arranged with a first live wire input terminal L1 and a second live wire input terminal L2, with different rated input currents for the first live wire input terminal L1 and the second live wire input terminal L2. For example, the rated current of the first live wire input terminal L1 can be 20 A, and the rated current of the second live wire input terminal L2 can be 15 A. The conversion switch 60a is connected between the plug assembly 50a and the controller 70a. The conversion switch 60a is configured to switch between the following two positions: position a and position b. When the conversion switch 60a is in the position a, the conversion switch 60a connects the live wire of the plug assembly 50a to the first live wire input terminal L1. When the conversion switch 60a is in the position b, where the conversion switch 60a connects the live wire of the plug assembly 50a to the second live wire input terminal L2.

[0149] It should be noted that the power input terminals of the controller 70a in this disclosure include, but are not limited to, the first live wire input terminal L1 and the second live wire input terminal L2. When the product needs to be compatible with more types of power sources, more live wire input terminals of different specifications can be added, such as a third live wire input terminal, a fourth live wire input terminal, and so on.

[0150] The disclosure sets up two different specifications of live wire interfaces in the controller 70a and controls the alternate connection and disconnection between the plug assembly 50a and the two live wire interfaces through the conversion switch 60a. This allows the electrical device to adapt to different types of external power sources, for example, it can adapt to both 120V 15 A and 120V 20 A power sources. This improves the compatibility of gardening tools with power sources, expands the application range of gardening tools, and eliminates the need to replace the entire machine to adapt to different power sources, thus reducing the cost of garden maintenance.

[0151] Correspondingly, the controller 70a can switch to different working states (such as the output current of the controller 70a) according to different power input types. The specific implementation method is as follows:

[0152] Please refer to FIG. 24, which shows the internal circuit diagram of the controller 70a. This controller 70a includes: a main control chip 73a and a current detection circuit 75a. This circuit is mainly used to identify different signals produced when the plug assembly is connected to L1 (first live wire input terminal) or L2 (second live wire input terminal). Specifically, the controller 70a includes a main circuit 71a. The first live wire input terminal L1 and the second live wire input terminal L2 are connected to the live wire port of the main circuit 71a through the first branch 76a and the second branch 77a respectively. The current detection circuit 75a is used to detect the current status of the first branch 76a or the second branch 77a. In this embodiment, the current detection circuit 75a is used to detect the current status of the second branch 77a. The detection signal output terminal of the current detection circuit 75a is electrically connected to the main control chip 73a, so that the main control chip 73a can control different output current magnitudes.

[0153] The controller 70a also includes an AC to DC conversion unit 72a. The AC to DC conversion unit 72a is connected in series with the main circuit 71a, specifically including: EMI filter, rectifier bridge, PFC circuit, and rectification filter circuit.

[0154] In a specific embodiment, the controller 70a can also include a drive circuit, a power inverter 74a, a current detection unit, a DC/DC 15V output circuit, a 5V output circuit, a 3.3V output circuit, sampling resistors, and an operation circuit, etc. A control signal output terminal of a main control chip 73a is electrically connected to a control signal input terminal of a power inverter 74a through the drive circuit. The current detection unit is connected between the power inverter 74a and the main control chip 73a, so that the main control chip 73a can obtain the working status of the power inverter 74a. The DC/DC 15V output circuit is used to supply power to the drive circuit. The 3.3V output circuit is used to supply power to the main control chip 73a. The sampling resistors and the operation circuit are used for the main control chip 73a to obtain the working status of the main circuit 71a in real-time. The power inverter 74a is electrically connected to the electrical appliance.

[0155] Please refer to FIG. 24, the following explanation of the controller 70a's principle is combined with a motor driving process: When the plug assembly is connected to L1 (first live wire input terminal), the input voltage passes through the F1 fuse, then through the EMI filter to the rectifier bridge for rectification, then to the PFC circuit for boosting. After boosting, it goes through the rectification filter circuit for filtering. Afterwards, one path provides stable power to the DC/DC 15V output, then through the 5V output circuit and 3.3V output circuit to supply power to the main control chip 73a. Another path provides the main power to the power inverter 74a. After the main control chip 73a powers on and passes its self-check, the main control chip 73a sends drive signals to the drive circuit. The drive circuit amplifies these signals and subsequently drives the power inverter 74a into operation. At this time, the power voltage is converted into three-phase AC by the power inverter 74a. The main control chip 73a calculates the appropriate phase and amplitude based on the rotor position information, and inputs the AC with specific timing to the phase coils of the motor, thus generating the required magnetic field. The main control chip 73a will dynamically adjust the phase and amplitude of the three-phase current to achieve alignment between the magnetic field and the rotor magnetic field, thereby achieving the best torque output and speed control. This way, the phase and magnitude of the current can be adjusted to control the motor's speed and direction, thus achieving control over the current magnitude.

[0156] After the motor starts running, the bus current will flow through the sampling resistor to generate a voltage signal for the operation circuit. The operation circuit amplifies the collected voltage and provides it to the main control chip 73a for internal operation and calculation, calculating whether the bus current is within the set range. By continuously monitoring the motor status and output, comparing the bus current and speed feedback signals with the set values, and adjusting the current and output, precise current control is achieved. This is the working flow when the plug assembly is connected to L1 (first live wire input terminal). Therefore, at this time, the bus current does not flow through the current sensor CT1, and point A of the current detection circuit 75a outputs no signal, indicating a 0 signal. This indicates that the A point control pin of the main control chip 73a detects no signal, i.e., a 0 signal.

[0157] In practical applications, rules can be pre-programmed into the main control chip 73a. For example: a 0 signal adjusts 20 A current, which corresponds to the L1 (first live wire input terminal) channel, and a 1 signal adjusts 15 A current, which corresponds to the L2 (second live wire input terminal) channel.

[0158] When the plug assembly is connected to L2 (second live wire input terminal), the input voltage first passes through the primary winding of the CT1 current sensor. This generates an induced voltage in the secondary winding of the current sensor. This voltage is rectified by diode D1, then filtered by C1 and C2. The resulting voltage at point A is transmitted to the main control chip 73a for identification. The presence of voltage at point A signifies a 1 signal, indicating that this channel is configured for 15 A current. The input voltage passes through the F2 fuse, following a process similar to when connected to L1. The input voltage goes through the EMI filter, then proceeds to the rectifier bridge for rectification. Afterward, it enters the PFC circuit for boosting, and the boosted voltage is filtered by the rectification filter circuit for filtering. One path provides stable power to the DC/DC 15V output, the 5V output circuit and 3.3V output circuit to power the main control chip 73a. The other path provides the primary power to the power inverter 74a. After the main control chip 73a powers on and completes self-checks, it sends drive signals to the drive circuit. These signals are amplified by the drive circuit and subsequently drive the power inverter 74a to work. The power inverter 74a then converts power voltage into three-phase AC. The main control chip 73a calculates the appropriate phase and amplitude based on the rotor position information, and inputs the AC with specific timing to the motor's phase coils. This generates the required magnetic field. The main control chip 73a will dynamically adjust the phase and amplitude of the three-phase current to achieve alignment between the magnetic field and the rotor magnetic field, thereby achieving the best torque output and speed control. This way, the phase and magnitude of the current can be adjusted to control the motor's speed and direction, thus achieving control over the current magnitude. After the motor starts running, the bus current will flow through the sampling resistor to generate a voltage signal for the operation circuit. The operation circuit amplifies the collected voltage and provides it to the main control chip 73a for internal operation and calculation, calculating whether the bus current is within the set range. By continuously monitoring the motor status and output, comparing the bus current and speed feedback signals with the set values, and adjusting the current and output, precise current control is achieved.

[0159] Please refer to FIG. 14, in a specific embodiment, the high-pressure cleaning device can also include components such as a high-pressure water gun 40a, floor brush, and other executing components. The motor pump assembly 30a is used to provide high-pressure water source for the high-pressure water gun 40a or floor brush and other executing components. It should be understood that the circuit structure provided by the disclosure, in addition to being applicable to the motor pump assembly 30a, can also be applied to other electrical devices of gardening tools. For example, it can be applied to the motors of blowers, lawn mowers, snow blowers, and other gardening tools. It can also be applied to the walking mechanism of gardening tools, such as the hub motors of self-propelled gardening tools. It can also be applied to the energy storage module of gardening tools, such as the battery pack charging system of gardening tools.

[0160] Please refer to FIGS. 14, 15, 16, 18, and 19, in a specific embodiment, the high-pressure cleaning device also includes a wheeled carrier 10a. The motor pump assembly 30a, the controller 70a, and the conversion switch 60a are mounted on the wheeled carrier 10a. It should be understood that the disclosure does not have special restrictions on the specific type of the wheeled carrier 10a. The wheeled carrier 10a can be, for example, a hand-pushed carrier, a ride-on carrier, or other common types of carriers.

[0161] Please refer to FIG. 14, taking a hand-pushed carrier as an example, in a specific embodiment, the wheeled carrier 10a may include a frame and wheels. The rear end of the frame is arranged with an upward-extending handle part. The handle part can be equipped with a rack for storing the high-pressure water gun 40a and its nozzle components. The wheels can be set as one pair or multiple pairs. When multiple pairs of wheels are set, some of them can be set as caster wheels to facilitate the turning of the high-pressure cleaning device.

[0162] The wheeled carrier 10a in the illustrated embodiment is a non-powered carrier that relies on the user's pushing to move. It should be understood that in some other embodiments, the wheeled carrier 10a can also be equipped with independent walking drive elements. When the wheeled carrier 10a is equipped with walking drive elements, its power structure can be similar to that of the motor pump assembly 30a to achieve compatibility with different types of power sources.

[0163] Please refer to FIGS. 21 and 22, in an optional embodiment of the disclosure, the plug assembly 50a includes a first set of connecting terminals 53a and a second set of connecting terminals 54a. The plug assembly 50a is configured to switch between the following two states: State one, where the first set of connecting terminals 53a is exposed to be compatible with an external power socket; and State two, where the second set of connecting terminals 54a is exposed to be compatible with an external power socket. It should be understood that the distribution of plug terminals corresponding to different power types may be different. For example, on a 120V 20 A plug, the live wire terminal and neutral wire terminal are distributed vertically, while on a 120V 15 A plug, the live wire terminal and neutral wire terminal are distributed horizontally. Therefore, the disclosure has set up connecting terminal sets with different distribution methods for different types of power socket panels. The first set of connecting terminals 53a corresponds to one type of power source, such as 120V 20 A power, and the second set of connecting terminals 54a corresponds to another type of power source, such as 120V 15 A power.

[0164] Specifically, please refer to FIGS. 12, 13, 21, and 22, in a further specific embodiment, the first set of connecting terminals 53a includes a first live wire terminal 531a, a first neutral wire terminal 532a, and a first ground wire terminal 533a. The second set of connecting terminals 54a includes a second live wire terminal 541a, a second neutral wire terminal 542a, and a second ground wire terminal 543a. The relative arrangement of the first live wire terminal 531a and the first neutral wire terminal 532a is different from the relative arrangement of the second live wire terminal 541a and the second neutral wire terminal 542a.

[0165] Please refer to FIGS. 21 and 22, in an optional embodiment of the disclosure, the plug assembly 50a includes a main plug 51a and a conversion plug 52a. The first set of connecting terminals 53a is mounted on the main plug 51a, and the first live wire terminal 531a is connected to the conversion switch 60a through a wire. The second set of connecting terminals 54a is mounted on the conversion plug 52a. The conversion plug 52a is configured to be detachably connected to the main plug 51a, and when the conversion plug 52a is connected to the main plug 51a, the conversion plug enables the first live wire terminal 531a to electrically connect with the second live wire terminal 541a, and enables the first neutral wire terminal 532a to electrically connect with the second neutral wire terminal 542a.

[0166] In a specific embodiment, the first neutral wire terminal 532a is electrically connected to the neutral wire port of the controller 70a through a wire. The conversion plug 52a is configured so that when the conversion plug 52a is connected to the main plug 51a, it can shield the first set of connecting terminals 53a and expose the second set of connecting terminals 54a.

[0167] Please refer to FIGS. 12 and 13, the conversion switch 60a includes a first port, a second port, a third port, and a movable part. The movable part is connected to the first port, and the movable part is movably arranged between a first position and a second position. When the movable part is in the first position, the movable part is connected to the second port, it is disconnected from the third port. When the movable part is in the second position, the movable part is connected to the third port, it is disconnected from the second port. The first port is electrically connected to the first live wire terminal 531a, the second port is electrically connected to the first live wire input terminal L1, and the third port is electrically connected to the second live wire input terminal L2.

[0168] It should be noted that the conversion plug 52a solution is just one of the preferred embodiments of the disclosure. In some other embodiments, it's possible not to set up a conversion plug 52a, but instead set up multiple wired plugs connected to the conversion switch 60a. As shown in FIG. 23, this embodiment can also achieve alternating connection between different sets of connecting terminals and the conversion switch 60a.

[0169] It should be understood that the number of conversion plugs 52a is not limited to one. For example, when the product needs to be compatible with more types of socket panels, the number of conversion plugs 52a can be multiple. Users can choose one of the conversion plugs 52a to connect with the main plug 51a as needed. Correspondingly, the controller 70a can have multiple live wire input terminals, and the conversion switch 60a can control the connection between various plug types and different live wire input terminals.

[0170] Please refer to FIGS. 12, 13, 14, 17, and 20, in an optional embodiment of the disclosure, a constraint mechanism is arranged between the conversion switch 60a and the plug assembly 50a. The constraint mechanism is configured to restrict the conversion switch 60a to position a when the plug assembly 50a is in state one, and to restrict the conversion switch 60a to position b when the plug assembly 50a is in state two.

[0171] It should be understood that the disclosure has implemented a fool-proof design for the conversion switch 60a through the constraint mechanism. That is, only when the plug assembly 50a is in state one will the conversion switch 60a be in position a, and similarly, only when the plug assembly 50a is in state two will the conversion switch 60a be in position b. This can prevent mismatch between the power source connected to the plug and the type of live wire interface of the controller 70a. The specific implementation method is as follows:

[0172] Please refer to FIGS. 12, 13, 14, 17, and 20, in a specific embodiment, it also includes a housing 20a. The housing 20a is mounted on the wheeled carrier 10a. The conversion switch 60a is mounted in the housing 20a. The constraint mechanism includes a storage portion arranged on the housing 20a. The storage portion is configured to store the conversion plug 52a. When the conversion plug 52a is stored in the storage portion, the movable part can be switched from the second position to the first position. When the conversion plug 52a is removed from the storage portion, the movable part can be switched from the first position to the second position.

[0173] In a further embodiment, a start-stop switch 23a for controlling the start and the stop of the motor pump assembly 30a can also be arranged on the housing 20a.

[0174] Specifically, the storage portion includes a storage slot 21a and a flip cover 22a. The flip cover 22a is configured to open or close the storage slot 21a. The flip cover 22a is arranged with a hanger for fixing the conversion plug 52a. The trigger lever of the conversion switch 60a protrudes into the storage slot 21a. When the flip cover 22a is closed and the conversion plug 52a is mounted on the flip cover 22a, the conversion switch 60a can be switched from position b to position a. When the flip cover 22a is open or the conversion plug 52a is not mounted on the flip cover 22a, the conversion switch 60a can remain in the position b.

[0175] Please refer to FIGS. 12 and 17, when the conversion plug 52a is stored in the storage slot 21a, the conversion plug 52a can press down the trigger lever of the conversion switch 60a. At this time, the conversion switch 60a connects the main plug 51a with the first live wire interface. The external power source compatible with the main plug 51a matches the parameters of the first live wire interface, thereby enabling the high-pressure cleaning device to work in the first power state, for example, in a 120V 20 A power state. When the conversion plug 52a is taken out of the storage slot 21a and connected to the main plug 51a, the trigger lever of the conversion switch 60a can, under the action of spring force, connect the main plug 51a with the second live wire interface. At this time, the main plug 51a can be compatible with another type of external power socket panel through the conversion plug 52a. The external power source compatible with the conversion plug 52a matches the parameters of the second live wire interface, thereby enabling the high-pressure cleaning device to work in the second power state, for example, in a 120V 15 A power state.

[0176] It should be understood that the above implementation method of the constraint mechanism is not the only one. When the specific implementation method of the plug assembly 50a changes, the implementation method of the constraint mechanism can also be adjusted accordingly. For example, when the plug assembly 50a adopts the scheme shown in FIG. 23, two storage cavities can be arranged on the housing 20a, used to store two wired plugs respectively. A linkage mechanism similar to the above embodiment can be set between the conversion switch 60a and the storage cavities, so that when one plug is in the stored state and the other plug is in the exposed state, the conversion switch 60a can be in the position a, and when the states of the two plugs are interchanged, the conversion switch 60a can be in position b.

[0177] In summary, the disclosure sets up two different specifications of live wire interfaces in the controller 70a and controls the alternate connection and disconnection between the plug assembly 50a and the two live wire interfaces through the conversion switch 60a. This allows the electrical device to adapt to different types of external power sources, improving the compatibility of gardening tools with power sources, expanding the application range of gardening tools, and eliminating the need to replace the entire machine to adapt to different power sources, thus reducing the cost of garden maintenance. The disclosure implements a fool-proof design for the conversion switch 60a through the constraint mechanism. That is, only when the plug assembly 50a is in state one will the conversion switch 60a be in the position a, and similarly, only when the plug assembly 50a is in state two will the conversion switch 60a be in the position b. This can prevent mismatch between the power source connected to the plug and the type of live wire interface of the controller 70a.

[0178] Referring to FIG. 25 to FIG. 31, this disclosure discloses a high-pressure cleaning device 1b. The high-pressure cleaning device 1b includes mutually independent water cooling system 2b and air cooling system 3b. The water cooling system 2b is used for heat dissipation of the controller 70b, and the air cooling system 3b is used for heat dissipation of the motor pump assembly 30b. In this way, the heat dissipation systems of the controller 70b and the motor pump assembly 30b are separated, so that the installation position of the controller 70b is no longer fixed, but can be set freely according to the needs of different styles of high-pressure cleaning devices, facilitating structural design and overall machine structure design.

[0179] Specifically, the water cooling system 2b includes a water cooling channel assembly 20b fixed inside the controller 70b, a water inlet 21b and a water outlet 22b arranged on the same side of the water cooling channel assembly 20b, and pipes 23b connected to the water inlet 21b and the water outlet 22b respectively. The water outlet 22b is connected to the motor pump assembly 30b through the pipe 23b, and the water inlet 21b is connected to external water flow through the pipe 23b, so that the external water flow enters the motor pump assembly 30b and flows out after passing through the water inlet 21b, the water cooling channel assembly 20b, and the water outlet 22b through the pipe 23b. In other words, the external water flow passes through the controller 70b before entering the motor pump assembly 30b, to dissipate heat from the controller 70b. Preferably, connectors 24b are arranged between the water inlet 21b and water outlet 22b and the pipes 23b, and they are connected by the connectors 24b. By setting the water inlet 21b and water outlet 22b on the same side, the internal structure of the high-pressure cleaning device 1b is more compact.

[0180] The water cooling channel assembly 20b includes a base 201b and a cover 202b. A water flow cavity 203b is recessed inside the base 201b. The cover 202b is mounted on the outside of the water flow cavity 203b, and the cover 202b is sealed to the base 201b. The water flow cavity 203b is connected to the water inlet 21b and the water outlet 22b. The external water flow enters the water flow cavity 203b from the water inlet 21b and then discharges from the water outlet 22b. Specifically, a partition plate 204b integrally formed with the base 201b is positioned inside the water flow cavity 203b. The partition plate 204b separates the water inlet 21b and the water outlet 22b, and forms a U-shaped water flow path inside the water flow cavity 203b. The external water flow enters the water flow cavity 203b from the water inlet 21b, passes through the U-shaped water flow channel, and discharges from the water outlet 22b. In this way, the direction of water flow in the water cooling channel assembly 20b is defined, making the water flow along the inner wall surface of the water flow cavity 203b. Preferably, the water cooling channel assembly 20b is designed to transfer the temperature of the water flow, effectively cooling its surroundings by water cooling.

[0181] A positioning part 2041b is arranged on the partition plate 204b, and a corresponding positioning groove 2021b is mounted on the cover 202b. The positioning part 2041b and the positioning groove 2021b are aligned with each other, so that a positioning member 2022b can pass through the positioning groove 2021b and be fixedly connected to the positioning part 2041b. A first sealing member 2023b is fixed between the positioning member 2022b and the positioning groove 2021b to achieve a sealed connection between the cover 202b and the base 201b. This not only increases the fixation tightness between the cover 202b and the base 201b, but also prevents water from flowing out from the connection seam between the cover 202b and the base 201b.

[0182] Optionally, a recess 2011b is mounted on the side of the base 201b facing the cover 202b, and a second sealing member 2012b is accommodated in the recess 2011b. When the cover 202b is fixedly connected to the base 201b, the second sealing member 2012b is compressed by the cover 202b and the base 201b in different directions, sealing it within the recess 2011b. This seals the entire periphery of the water flow cavity 203b to prevent water from flowing out from the connection seam between the cover 202b and the base 201b. Of course, either one or both of the first sealing member 2023b and the second sealing member 2012b can be set, without limitation, as long as the sealed fixation between the cover 202b and the base 201b is ensured.

[0183] The controller 70b includes a first shell 701b and a second shell 702b that are snap-fitted and fixed to each other. After assembly, the first shell 701b and second shell 702b form a mounting opening 703b and a receiving cavity 704b connected to the mounting opening 703b. The second shell 702b has a support platform 7021b extending outward from the mounting opening 703b. The water cooling channel assembly 20b is accommodated within the receiving cavity 704b, with one end passing through the mounting opening 703b and fixedly connected to the support platform 7021b, exposing the water inlet 21b and water outlet 22b outside the controller 70b. By setting the water cooling channel assembly 20b inside the controller 70b, heat dissipation of the controller 70b is achieved through external water flow without increasing the volume of the controller 70b, ensuring that the internal layout of the high-pressure cleaning device is not affected. In this embodiment, the first shell 701b has a snap-fit part 7010b, and the second shell 702b has a corresponding snap-fit block 7020b. The snap-fit part 7010b and the snap-fit block 7020b cooperate with each other to snap-fit and fix the first shell 701b and the second shell 702b.

[0184] Specifically, the water cooling channel assembly 20b comprises a fixing part 205b, and the support platform 7021b has a corresponding fixing slot 7022b. The fixing part 205b and the fixing slot 7022b are aligned with each other, enabling a fastener 7023b passing through the fixing slot 7022b to cooperate with the fixing part 205b, achieving fixed connection between the water cooling channel assembly 20b and the support platform 7021b. In other words, the water cooling channel assembly 20b is fixed to the shell of the controller 70b through the fixing part 205b and the fixing slot 7022b. Preferably, fixing parts 205b are positioned at both ends of the water cooling channel assembly 20b, with corresponding fixing slots 7022b set at the corresponding positions on the shell of the controller 70b, to fix the water cooling channel assembly 20b to the controller 70b.

[0185] The controller 70b also includes a circuit board 705b and a heat-generating element 706b. The circuit board 705b and the heat-generating element 706b are fixed inside the receiving cavity 704b. The heat-generating element 706b is assembled on the circuit board 705b and forms a receiving area on the circuit board 705b. The water cooling channel assembly 20b is fixed in the receiving area, and the water cooling channel assembly 20b is in contact with the heat-generating element 706b. In other words, the water cooling channel assembly 20b mainly dissipates heat for the circuit board 705b and the heat-generating element 706b. In this embodiment, there are multiple heat-generating elements 706b, with the heat-generating element 706b with the highest heat generation power placed in close contact with the water cooling channel assembly 20b to maximize heat dissipation efficiency.

[0186] The high-pressure cleaning device 1b also includes an air cooling system 3b. The air cooling system 3b is mounted on the motor pump assembly 30b. The motor pump assembly 30b includes a fixedly connected motor assembly 301b and pump assembly 302b. The air cooling system 3b is mounted on the motor assembly 301b, and the air cooling system 3b is used to dissipate heat from the motor assembly 301b. The pump assembly 302b is connected to the water outlet 22b through the pipe 23b, and the pump assembly 302b is exposed to the outside of the high-pressure cleaning device 1b to discharge the water flow entering the pump assembly 302b.

[0187] The motor assembly 301b includes a motor shell 300b, an air inlet 303b and an air outlet 304b, the air inlet 303b and the air outlet 304b are arranged on opposite sides of the motor shell 300b. A stator 305b and a rotor 306b are fixed inside the motor assembly 301b. The stator 305b is fixedly connected to the pump assembly 302b. The rotor 306b includes a rotating shaft 3061b passing through the stator 305b. One end of the rotating shaft 3061b near the air inlet 303b is fixed with a fan 307b, while the other end passes through the air outlet 304b and connects to the pump assembly 302b. In other words, the air outlet 304b directly faces the pump assembly 302b. The motor assembly 301b rotates the fan 307b to make the airflow enter the motor assembly 301b from the air inlet 303b and discharge from the air outlet 304b.

[0188] The pump assembly 302b has an axle hole 3021b, and a groove 3022b is arranged on the inner wall surface of the axle hole 3021b. The end of the rotating shaft 3061b has a spline 3062b. When the rotating shaft 3061b is connected to the pump assembly 302b, the spline 3062b is limitedly accommodated in the groove 3022b to prevent the rotating shaft 3061b from rotating freely inside the axle hole 3021b.

[0189] In summary, the high-pressure cleaning device 1b of this disclosure comprises mutually independent water cooling system 2b and air cooling system 3b to dissipate heat from the controller 70b and motor assembly 301b respectively. As a result, the installation position of the controller 70b is no longer limited, thereby broadening the design direction for the internal layout of the high-pressure cleaning device 1b.

[0190] Referring to FIG. 32 to FIG. 38, this disclosure discloses a high-pressure cleaning device 1c. The high-pressure cleaning device 1c includes a housing 20c and a storage portion mounted on the housing 20c. The storage portion is configured to store a conversion plug 52c. Of course, the component stored in the storage portion is not limited to the conversion plug. Any component that needs to be stored can be accommodated in the storage portion. The size of the storage portion can also be adjusted according to the size of the component to be stored, without limitation.

[0191] Specifically, the storage portion includes a storage slot 21c and a flip cover 22c. The flip cover 22c is assembled to be able to open or close the storage slot 21c. The conversion plug 52c is arranged on the flip cover 22c, and the conversion plug 52c is installed or removed by opening or closing the storage slot 21c. The flip cover 22c is arranged with a hanger 221c for fixing the conversion plug 52c. The conversion plug 52c is correspondingly arranged with a fixing slot 521c and a fastener 522c passing through the fixing slot 521c. The fastener 522c cooperates with the hanger 221c to achieve a fixed connection between the conversion plug 52c and the flip cover 22c.

[0192] To enable the flip cover 22c to automatically reset after opening, restoring the state of closing the storage slot 21c, this disclosure provides a flip cover reset structure that can automatically reset after the flip cover 22c is opened. For ease of understanding, it will be explained in conjunction with the high-pressure cleaning device 1c. However, it should be known that the flip cover reset structure is not only applicable to high-pressure cleaning devices but can be adapted to most tools that need automatic reset.

[0193] One of the flip cover 22c and the housing 20c is arranged with an outwardly extending pivoting portion 222c, and the other of the flip cover 22c and the housing 20c is correspondingly arranged with a mounting portion 201c. The pivoting portion 222c is arranged with a pivot hole 2220c and a rotating shaft 2221c passing through the pivot hole 2220c. The rotating shaft 2221c cooperates with the mounting portion 201c to achieve a pivoting connection between the flip cover 22c and the housing 20c. An elastic structure 223c is also arranged between the pivoting portion 222c and the mounting portion 201c. The elastic structure 223c is configured to drive the flip cover 22c to close automatically when the flip cover 22c is in an open state. The elastic structure 223c is preferably a torsion spring. After opening the flip cover 22c, the torsion spring drives the flip cover 22c to close automatically through torsional force, thereby achieving the reset of the flip cover 22c. In this embodiment, the flip cover 22c is integrally formed with a pivoting portion 222c extending outward, and the housing 20c is arranged with a mounting portion 201c, to achieve the pivoting connection between the flip cover 22c and the housing 20c through the rotating shaft 2221c and the elastic structure 223c set between the flip cover 22c and the housing 20c.

[0194] The elastic structure 223c includes a first connecting portion 2231c connected to the pivoting portion 222c, a second connecting portion 2232c connected to the mounting portion 201c, and a third connecting portion 2233c fitted on the rotating shaft 2221c. When the flip cover 22c is opened, the first connecting portion 2231c is compressed under external force and moves towards the side of the second connecting portion 2232c. After losing the external force, the elastic structure 223c is driven by its own torsional force, and the first connecting portion 2231c moves towards the side away from the second connecting portion 2232c, thereby driving the flip cover 22c to reset.

[0195] Specifically, the first connecting portion 2231c is L-shaped and includes a first end 22311c connecting the third connecting portion 2233c and a second end 22312c perpendicular to the first end 22311c. The pivoting portion 222c is arranged with a connecting hole 2222c, and the second end 22312c is rotatably accommodated in the connecting hole 2222c. The second connecting portion 2232c includes a third end 22321c connecting the third connecting portion 2233c and a fourth end 22322c perpendicular to the third end 22321c. The mounting portion 201c is arranged with a mounting groove 2010c for accommodating the third connecting portion. The third end 22321c extends out of the mounting groove 2010c to expose the fourth end 22322c outside the mounting portion 201c. Two first connecting portions 2231c, second connecting portions 2232c, and third connecting portions 2233c are arranged and symmetrically arranged. The two fourth ends 22322c are connected to each other to make the two second connecting portions 2232c combined into a U-shape. The mounting groove 2010c is arranged with a protrusion 2011c located between the two second connecting portions 2232c to prevent the second connecting portion 2232c from being displaced. Because the housing 20c does not move when the flip cover 22c is opened or closed, the second connecting portion 2232c is fixed to the mounting portion 201c in different directions through the fourth end 22322c and the protrusion 2011c, so that the second connecting portion 2232c will not move due to the opening or closing of the flip cover 22c.

[0196] One of the flip cover 22c and the housing 20c is arranged with an magnetic attachment 202c. The magnetic attachment 202c and the mounting portion 201c are respectively mounted on opposite sides of the storage slot 21c. The other of the flip cover 22c and the housing 20c is correspondingly arranged with a metal component 224c. The magnetic attachment 202c cooperates with the metal component 224c to adsorb the flip cover 22c and the housing 20c together and close the storage slot 21c. That is to say, in the process of automatic reset of the flip cover 22c under the torsional force of the elastic structure 223c, an adsorption force is added. While ensuring that the flip cover 22c can be fixed to the housing 20c through the adsorption force, it also speeds up the reset time. The magnetic attachment 202c is preferably a magnet to adsorb most metal objects. In this embodiment, the magnetic attachment 202c is fixed on the housing 20c, and the metal component 224c is mounted on the flip cover 22c, so that the flip cover 22c and the housing 20c are adsorbed together and the storage slot 21c is closed through the cooperation of the magnetic attachment 202c and the metal component 224c.

[0197] Specifically, the housing 20c is recessed with an accommodating groove 203c for accommodating the magnetic attachment 202c. The accommodating groove 203c is arranged opposite to the mounting portion 201c and close to the storage slot 21c. By setting the accommodating groove 203c and the mounting portion 201c on both sides of the storage slot 21c, and each of the accommodating groove 203c and the mounting portion 201c corresponding to a force acting on the reset of the flip cover 22c, the reset process is simpler, and the fixing surface between the flip cover 22c and the housing 20c is larger, making the fixing more secure.

[0198] The flip cover 22c is arranged with a metal hole 225c, and the metal component 224c is fixed in the metal hole 225c. When the flip cover 22c closes the storage slot 21c, the metal component 224c and the magnetic attachment 202c mutually attract and abut.

[0199] A side of the housing 20c facing the flip cover 22c is also arranged with a double stop flange 204c. The double stop flange 204c is used to achieve a sealed connection between the flip cover 22c and the housing 20c after the flip cover 22c is closed. Through the design of the double stop flange 204c, even on rainy days, rainwater will not splash into the interior of the housing 20c, damaging the components stored in the storage slot 21c, such as the conversion plug 52c in this embodiment. In this embodiment, the flip cover 22c is also correspondingly arranged with the double stop flange 204c to ensure the sealed connection between the flip cover 22c and the housing 20c.

[0200] In summary, the flip cover reset structure and high-pressure cleaning device of this disclosure achieve the automatic reset function of the flip cover 22c by setting the elastic structure 223c, magnetic attachment 202c, and metal component 224c between the flip cover 22c and the housing 20c. At the same time, by setting the double stop flange 204c on the housing 20c, the sealed connection between the flip cover 22c and the housing 20c is ensured.

[0201] The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings.

[0202] The embodiments were chosen and described in order to best explain the principles of the techniques and their practical applications. Others skilled in the art are thereby enabled to best utilize the techniques and various embodiments with various modifications as are suited to the particular use contemplated.

[0203] Although the disclosure and examples have been fully described with reference to the accompanying drawings, it is to be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of the disclosure and examples as defined by the claims.