Portable pump by which liquid may be horizontally pressed out

Abstract

A portable pump by which liquid may be horizontally pressed out, comprising a liquid storage container, a pump head being provided at a side of the liquid storage container, and a liquid suction device that is connected to the pump head being provided within the liquid storage container. The liquid suction device comprises a liquid suction chamber, a spring, a piston, and a liquid outlet pipe that is connected to the pump head. The liquid suction chamber is provided with a liquid inlet pipe and a fixed end of the spring, check valves being provided within the liquid outlet pipe and the liquid inlet pipe. The piston is sleeved with the liquid outlet pipe and provided with a through hole that matches an opening of the liquid outlet pipe. The pump can comprise a locking seat on the side of the liquid storage container that matches a pump head cover.

Claims

1. A portable pump by which liquid can be horizontally pressed out, the portable pump comprising (i) liquid storage container, (ii) a pump head provided on a side of the liquid storage container, and (iii) a locking structure of the pump head, the portable pump characterized in that: a liquid suction device connected to the pump head is provided in the liquid storage containers; the liquid suction device comprises a liquid suction chamber, a spring, a piston, and a liquid outlet pipe connected to the pump head; the liquid suction chamber is provided with a liquid inlet pipe and a fixed end of the spring; the liquid outlet pipe and the liquid inlet pipe are provided with a check valve, respectively; the piston is sleeved with the liquid outlet pipe and is provided with a through hole matching with an opening of the liquid outlet pipe; one end of the spring is fixed at the fixed end, and the other end of the spring is connected to the piston; the pump head is shaped as a cap; the locking structure is a locking seat provided on the side of the liquid storage container and matching with a pump head cover; the locking seat has a ring opening provided in a form of an annular opening; a positioning block is provided in the ring opening; a convex ring sleeved with the ring opening is provided at a bottom of the pump head; the convex ring is provided with a notch and a limiting convex edge; and the portable pump is configured so that: under the pressing of the pump head, the piston is driven to move horizontally in the liquid suction chamber; when the piston is reset, stored liquid in the liquid storage container is pumped into the liquid suction chamber from the liquid inlet pipe; and when the piston is pressed, the stored liquid in the liquid suction chamber is squeezed into the liquid outlet pipe and pumped out of the pump head; and the portable pump is configured so that: when the pump head is operated to rotate, the convex ring rotates axially in the ring opening; when the notch is aligned and embeddedly matched with the positioning block, the pressing movement of the pump head is unlocked; and otherwise the positioning block and the convex ring are abutted with each other, thereby limiting the pressing operation of the pump head.

2. The portable pump according to claim 1, wherein a depth of the notch is adapted to a height of the positioning block and matches with a horizontal displacement stroke of the piston in the liquid suction chamber.

3. The portable pump according to claim 2, wherein the convex ring is further provided with a positioning groove, one end of the limiting convex edge is connected to the notch, and the other end thereof is connected to the positioning groove; the positioning block rotates along with the pump head, slides against and along the surface of the convex ring until the positioning block reaches the limiting convex edge and is embedded in the positioning groove, such that the pump head is in a locked state.

4. The portable pump according to claim 3, wherein a liquid outlet nozzle is provided on a side of the pump head, and an opening of the liquid outlet nozzle faces a middle portion of the pump head; when the pump head is in an unlocked state, the liquid outlet nozzle is located on an upper side of the pump head.

5. The portable pump according to claim 4, wherein the liquid outlet pipe comprises a connecting end embedded at the bottom of the pump head, and a liquid guiding pipe sleeved with the piston, the connecting end is shaped as a round disk and is provided with a liquid outlet channel in communication with the liquid guiding pipe, the liquid outlet channel extends outward, an edge of the connecting end aligned with an end opening of the liquid outlet channel is provided with a positioning slot; the bottom of the pump head is further provided with an inner ring, the inner ring is provided with a convex block aligned with the notch; when the pump head is in the unlocked state, the positioning slot of the connecting end and the convex block on the inner ring of the pump head are embedded and positioned with each other, such that the liquid outlet nozzle on the pump head and the end opening of the liquid outlet channel are aligned with each other.

6. The portable pump according to claim 1, wherein a sidewall of the liquid suction chamber is further provided with a vent hole, the vent hole is located on a lower side of the liquid suction chamber and is isolated by the piston, such that the vent hole is isolated from a liquid storage space of the liquid suction chamber.

7. The portable pump according to claim 1, wherein the liquid storage container comprises a front cover and a rear cover that are horizontally assembled, a sealing ring is provided at a joint between the front cover and the rear cover, the pump head is provided at a middle portion of a side of the front cover.

8. The portable pump according to claim 7, wherein the fixed end of the spring is provided at a middle portion of an inner side of the rear cover, the fixed end is a protrusion horizontally sleeved by the spring, a concave ring is formed between an outer side of the protrusion and an inner wall of the liquid suction chamber, when the piston is pressed to gradually assemble the protrusion, the stored liquid in the liquid suction chamber is concentrated back through the concave ring, squeezed out through the through hole of the piston and pumped into the liquid outlet pipe.

9. The portable pump according to claim 8, wherein a top of the rear cover is further provided with a hanging ring, an upper portion of the rear cover is provided with a liquid filling hole, and a hole plug is provided on the liquid filling hole.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a structural view of a portable pump which can press liquid out horizontally according to the present disclosure;

(2) FIG. 2 is an exploded view of an overall structure of the portable pump of the present disclosure;

(3) FIG. 3 is a cross-sectional view of an assembled state of the pump head, liquid suction device, and liquid storage container of the portable pump of the present disclosure;

(4) FIG. 4 is a cross-sectional view of the portable pump of the present disclosure;

(5) FIG. 5 is an exploded view of the pump head and liquid storage container of the portable pump of the present disclosure;

(6) FIG. 6 is a bottom structural view of the pump head of the portable pump of the present disclosure;

(7) FIG. 7 is a structural view of the liquid outlet pipe of the portable pump of the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(8) A portable pump by which liquid may be horizontally pressed out according to the present disclosure will be described with reference to the drawings.

(9) As shown in FIG. 1, the portable pump comprises a liquid storage container 1. The liquid storage container 1 is provided with a pump head 2 on a side thereof, and a liquid suction device connected to the pump head 2 is provided in the liquid storage container 1.

(10) As shown in FIGS. 1 to 2, the liquid storage container 1 comprises a front cover 11 and a rear cover 12 that are horizontally assembled, and a sealing ring 13 is provided at a joint between the front cover 11 and the rear cover 12. The liquid storage container 1 is formed by horizontally assembling the separately formed front cover 11 and the rear cover 12, which is advantageous for processing and production separately, or manufacturing a combination of different colors, which increases the appearance. It is more benefit to mount the liquid suction device and components of the pump head 1 to improve production efficiency.

(11) The pump head 2 is provided in a middle portion of a side of the front cover 11. Especially for the design of the pump head 1 that is pressed on the side, the applied force is dispersed and the liquid storage container is evenly stressed, which ensures the stability of the portable pump and extends the service life.

(12) A top of the back cover 12 is further provided with a hanging ring 121, such that the user can hang the portable pump on a belt or a pocket of clothes and carry it around. An upper portion of the rear cover 12 is provided with a liquid filling hole 122, and a hole plug 123 is provided on the liquid filling hole 122. The user can fill the stored liquid through the liquid filling hole 122, and seal the liquid filling hole 122 through the hole plug 123 for use.

(13) As shown in FIGS. 2 to 4, the liquid suction device comprises a liquid suction chamber 3, a spring 4, a piston 5, and a liquid outlet pipe 6 connected to the pump head 2. The liquid suction chamber 3 is provided with a liquid inlet pipe 31 and a fixed end 124 of the spring. The liquid outlet pipe 6 and the liquid inlet pipe 31 are provided with a first check valve 71 and a second check valve 72, respectively.

(14) Preferably, the first check valve 71 of the liquid inlet pipe 31 only opens to the inside of liquid suction chamber 3, and the second check valve 72 of the outlet pipe 6 only opens to a direction towards the pump head 2.

(15) The piston 5 is sleeved with the liquid outlet pipe 6. A bottom of the piston 5 is provided with a through hole 51 matching an opening of the liquid outlet pipe 6. One end of the spring 4 is fixed to the fixed end 124, and the other end thereof is connected to the piston 5. Under the pressing of the pump head 2, the piston 5 is driven to move horizontally in the liquid suction chamber 3.

(16) When the user operates the pump head 2 and presses it horizontally into the liquid storage container 1, the piston 5 is driven to move horizontally in the liquid suction chamber 3, and the stored liquid in the liquid suction chamber 3 is squeezed into the liquid outlet pipe 6 and pumped out of the pump head 2. When the piston 5 is reset, the stored liquid in the liquid storage container 1 is pumped from the liquid inlet pipe 31 into the liquid suction chamber, reserved for the next liquid output, such that the portable pump can realize the quantitative output of the liquid storage.

(17) In order to further enhance the sealing performance of the liquid output structure, as shown in FIGS. 5 to 6, the portable pump further comprises a locking structure of the pump head 2, the pump head 2 is shaped as a cap. The locking structure is a locking seat 8 matching with the pump head 2 cover on the side of the liquid storage container 1. The locking seat 8 has a ring opening 81 provided in a form of an annular opening, and a positioning block 82 is provided in the ring opening 81. A convex ring 21 sleeved with the ring opening 81 is provided at a bottom of the pump head 2. The convex ring 21 is provided with a notch 211 and a limiting convex edge 212.

(18) The user can operate the pump head 2 to rotate on the locking seat 8 with one hand to realize the switch setting. In the rotation operation of the pump head 2, the convex ring 21 rotates axially in the ring opening 81. When the pump is rotated by a certain angle, it can be preferably set to a matching structure of 45 degrees. When the notch 211 is aligned with the positioning block 82, it is in an unlocked state, the positioning block 82 is embeddedly matched the notch 211 to unlock the pressing movement of the pump head 2; otherwise, the positioning block 82 and the convex ring 21 are abutted with each other, thereby limiting the pressing operation of the pump head 2.

(19) Preferably, a depth of the notch 211 is adapted to a height of the positioning block 82, and matches with a horizontal displacement stroke of the piston 5 in the liquid suction chamber 3, so as to facilitate the combination of the entire locking structure and the liquid suction device. When the pressing movement of the pump head 2 is unlocked, a stroke that the user presses the pump head 2, the depth of the notch 211 that embedded with the positioning block 82 of the locking structure, and the horizontal displacement stroke of the piston 5 in the liquid suction chamber 3 in the liquid suction device match with one another, so as to effectively and accurately control the amount of liquid outlet and to further enhance the sealing performance.

(20) On the basis of the above, as shown in FIG. 6, the convex ring 21 is further provided with a positioning groove 213, one end of the limiting convex edge 213 is connected to the notch 211, and the other end thereof is connected to the positioning groove 213. The positioning block 82 rotates along with the pump head 2, slides against and along the surface of the convex ring 21 until the positioning block reaches the limiting convex edge 213, and is embedded into the positioning groove 213, such that the pump head is in a locked state. In actual operation, after the user operates the pump head 2 to rotate to a certain angle, it can be matched with the above unlocked state, and is preferably set to a matching structure of reversed 45°. The positioning block 82 of the locking structure slides into the positioning groove 213 to form the locked state, such that the pump head 2 is locked and fixed to avoid the situation of liquid leakage and liquid seepage.

(21) The cooperation structure of the locking structure and the liquid suction device can be optimized. As shown in FIG. 5, a liquid outlet nozzle 22 is provided on a side of the pump head 2, and the opening 221 of the liquid outlet nozzle 22 faces a middle portion of the pump head 2. When the pump head 2 is in the unlocked state, the liquid outlet nozzle 22 is located on an upper side of the pump head 2. Especially for a portable pump that presses the liquid out on the side, when the user performs the rotating operation to the pump head 2 and rotates the liquid outlet nozzle 22 on the pump head 2 to the upper side, the pressing movement of the pump head 2 is unlocked, and the user can press the pump head 2 to let the stored liquid flow out of the opening 221 of the liquid outlet nozzle 22 downward to use the stored liquid.

(22) On the basis of the above, the structure of the liquid outlet pipe 6 can be improved. As shown in FIGS. 4, 6 to 7, the liquid outlet pipe 6 comprises a connecting end 61 embedded at the bottom of the pump head 2, and a liquid guiding pipe 62 sleeved with the piston 5. The connecting end 61 is shaped as a round disk and is provided with a liquid outlet channel 611 in communication with the liquid guiding pipe 62. The liquid outlet channel 611 extends outward, an edge of the connecting end 61 aligned with an end opening of the liquid outlet channel 611 is provided with a positioning slot 612. The bottom of the pump head 2 is further provided with an inner ring 23, the inner ring 23 is provided with a convex block 231 aligned with the notch 211. When the pump head 2 is in the unlocked state, the positioning slot 612 of the connecting end 61 and the convex block 231 on the inner ring 23 of the pump head 2 are embedded and positioned with each other, such that the liquid outlet nozzle 22 on the pump head 2 and the end opening of the liquid outlet channel 611 are aligned with each other.

(23) When the user operates the pump head 2 to rotate to the unlocked state, the positioning slot 612 of the connecting end 61 and the convex block 231 on the inner ring 23 of the pump head 2 are embedded and positioned with each other, such that the liquid outlet nozzle 22 on the pump head 2 and the end opening of the liquid outlet channel 611 are aligned with each other. In this state, the operation of pressing the liquid out of the pump head 2 is performed, and the stored liquid is pumped into the liquid guiding pipe 62 from the liquid suction chamber 3 through the through hole 51 of the piston 5, then enters the liquid outlet channel 611 on the connecting end 61, and finally flows out from the liquid outlet nozzle 22. Since the liquid outlet channel 611 is in a vertical state at the moment, after the liquid is output, the residual liquid will flow back to the liquid guiding pipe 62 with the liquid outlet channel 611, which effectively forms a structure to control the flow back of residual liquid, so as to avoid leakage of residual liquid remaining on the liquid outlet nozzle 22, which affects hygiene of clothing for users.

(24) In order to allow the air pressure in the liquid storage container 1 to circulate and allow the liquid suction device to pump out the stored liquid normally, it is necessary to provide a structure in the suction chamber 3 that enables exchange with external air, thus the structure of the liquid suction device is further optimized. As shown in FIGS. 2 to 4, a sidewall of the liquid suction chamber 3 is provided with a vent hole 32. The vent hole 32 is located on a lower side of the liquid suction chamber 3, and is isolated by the piston 5, such that the vent hole 32 is isolated from a liquid storage space of the liquid suction chamber 3. When the user presses the pump head 2, the piston 5 moves horizontally into the liquid suction chamber 3 to squeeze out the stored liquid in the storage space of the liquid suction chamber 3. At the same time, the vent hole 32 at the other end of the piston 5 performs an air exchange between the external air and the liquid storage container 1, such that the interior of the liquid storage container can communicate with the external air pressure through the liquid suction device, and therefore the portable pump can maintain a normal liquid pumping operation.

(25) For this type of portable pump by which liquid is output by pressing the pump head 2 on the side, since the entire liquid suction device and the pump head 2 are horizontally arranged in the liquid storage container 1, the stored liquid is not evenly distributed on a peripheral wall of the liquid suction device, which is different from the conventional pump that is arranged vertically. In order to enhance the pumping effect of the piston 5, the fixed end 124 of the spring 5 is optimized. As shown in FIG. 4, the fixed end 124 of the spring 5 is provided at a middle portion of an inner side of the rear cover 12. The fixed end 124 is a protrusion horizontally sleeved by the spring 5. A concave ring 125 is formed between an outer side of the protrusion and an inner wall of the liquid suction chamber 3. When the piston 5 is pressed and gradually assembles the protrusion, the stored liquid in the liquid suction chamber 3 is concentrated back through the concave ring 125, squeezed out into the through hole of the piston 5 and pumped into the liquid outlet pipe 6. The concave ring 125, the piston 5, and the inner wall of the liquid suction chamber 3 are effectively used to enclose together to form a flow back channel for the stored liquid, such that the stored liquid can be efficiently concentrated and output, the residual liquid in the storage space of the liquid suction chamber can be prevented from mixing with the stored liquid that is newly pumped into the storage space at the next time, which affects the quality of the outputting stored liquid.

(26) According to the disclosure and teaching of the above description, person skilled in the art to which the present disclosure belongs can also make changes and modifications to the embodiments mentioned above. Therefore, the present disclosure is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present disclosure should also fall within the scope of protection of claims of the present disclosure. In addition, although some specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present disclosure.