SURFACE CLEANER

Abstract

The present disclosure discloses a surface cleaner, including a connector, where a rotary valve sleeve is connected to the bottom of the connector, a rotary valve core is connected to the interior of the rotary valve sleeve, a valve body is connected to two ends of the rotary valve core, a rotating valve core is connected to the bottom of the valve body, a water outlet pipe is connected to the bottom of the rotating valve core, and a nozzle is connected to each of two sides of the water outlet pipe. The surface cleaner disclosed in the present disclosure has the advantages of compact structure, stable performance, low cost, long service life, high safety, and wide use range, and is capable of meeting the requirements of a long service life for commercial use and a low price for household use.

Claims

1. A surface cleaner, comprising a connector, wherein a rotary valve sleeve is connected to the bottom of the connector, a rotary valve core is connected to the interior of the rotary valve sleeve, a valve body is connected to two ends of the rotary valve core, a rotating valve core is connected to the bottom of the valve body, a water outlet pipe is connected to the bottom of the rotating valve core, and a nozzle is connected to each of two sides of the water outlet pipe.

2. The surface cleaner according to claim 1, wherein a water inlet screen is provided at a water inlet of the connector.

3. The surface cleaner according to claim 1, wherein the rotating valve core is provided with a steel ball at an upper end, a thin head rivet is provided at a joint between the valve body and the rotating valve core, and the thin head rivet and the steel ball abut on each other.

4. The surface cleaner according to claim 1, wherein a first O-ring is provided between the valve body and the rotary valve core.

5. The surface cleaner according to claim 1, wherein an eleventh O-ring is provided between the water outlet pipe and the rotating valve core, a second O-ring is provided between the rotary valve sleeve and the rotary valve core, and an opening seal ring is provided between the valve body and the rotating valve core.

6. The surface cleaner according to claim 1, wherein a first U-pin is provided in the valve body.

7. The surface cleaner according to claim 1, wherein a sheath is connected to the bottom of the rotating valve core.

8. The surface cleaner according to claim 1, wherein the valve body is provided with a first plug and a second plug therein, and the water outlet pipe is provided with third plugs at both ends.

9. The surface cleaner according to claim 1, wherein a pressure plate is attached to a lower end of the valve body.

10. The surface cleaner according to claim 1, wherein a fixed valve sleeve is provided between the valve body and the rotating valve core.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG. 1 is a schematic structural diagram of a first prior-art surface cleaner according to the present disclosure;

[0034] FIG. 2 is a local side view of the first prior-art surface cleaner according to the present disclosure;

[0035] FIG. 3 is a schematic structural diagram of a second prior-art surface cleaner according to the present disclosure;

[0036] FIG. 4 is a local side view of the second prior-art surface cleaner according to the present disclosure;

[0037] FIG. 5 is a schematic structural diagram of a third prior-art surface cleaner according to the present disclosure;

[0038] FIG. 6 is a local side view of the third prior-art surface cleaner according to the present disclosure;

[0039] FIG. 7 is a schematic structural diagram of a first embodiment of a surface cleaner disclosed in the present disclosure;

[0040] FIG. 8 is a local side view of the first embodiment of the surface cleaner disclosed in the present disclosure;

[0041] FIG. 9 is a force bearing analysis diagram of the surface cleaner disclosed in the present disclosure;

[0042] FIG. 10 is a schematic structural diagram of a second embodiment of the surface cleaner disclosed in the present disclosure; and

[0043] FIG. 11 is a local side view of the second embodiment of the surface cleaner disclosed in the present disclosure.

[0044] List of reference numerals: 1, water inlet screen; 2, connector; 3, connector (injection molding); 4, sealing ring; 5, opening stop ring 1; 6, first O-ring; 7, rotary valve sleeve; 8, first U-pin; 9, the second O-ring; 10, rotary valve core; 11, opening stop ring 2; 12, valve body (injection molding); 13, third O-ring; 14, thin head rivet; 15, steel ball; 16, plug 1; 17, valve body; 18, stop block; 19, plug bolt; 20, spring; 21, end cap; 22, fourth O-ring; 23, fifth O-ring; 24, sixth O-ring; 25, valve cover (injection molding); 26, seventh O-ring; 27, fixed valve core; 28, gasket; 29, washer; 30, opening seal ring; 31, tightening screw; 32, eighth O-ring; 33, rotating valve sleeve; 34, water outlet pipe (injection molding); 35, ninth O-ring; 36, second U-pin; 37, nozzle connector (injection molding); 38, tenth O-ring; 39, third U-pin; 40, first valve plate; 41, second valve plate; 42, elastic shaft stop ring; 43, bearing; 44, the elastic hole stop ring; 45, plug 2; 46, rotating valve core; 47, rotating water distributor; 48, pressure plate; 49, sheath; 50, eleventh O-ring; 51, water outlet pipe; 52, nozzle; 53, third plug; 54, fixed valve sleeve.

DETAILED DESCRIPTION OF EMBODIMENTS

[0045] In order to make the purpose, technical solution and advantages of embodiments of the present disclosure clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without the practice of inventive effort shall fall into the protection scope of the present disclosure.

[0046] In addition, it should also be noted that in the description of the present disclosure, the terms mount, couple and connect should be interpreted in a broad sense unless otherwise explicitly defined and limited. For example, the terms may indicate a fixed connection, a detachable connection, or an integral connection; may indicate a mechanical connection or an electrical connection; and may indicate a direct connection or an indirect connection implemented via an intermediate medium, or internal communication between two elements. For those skilled in the art, the specific meanings of the foregoing terms in the disclosure can be interpreted according to a specific situation.

Embodiment I

[0047] Referring to FIGS. 7-9, the present disclosure provides a surface cleaner, including a connector 2, where a water inlet at an upper end of the connector 2 is connected to a spray gun, a water outlet at a bottom end of the connector 2 is sleeved with a rotary valve sleeve 7, the rotary valve sleeve 7 is provided therein with a valve sleeve transverse flow channel and a valve sleeve vertical flow channel in communication with the valve sleeve transverse flow channel, and the valve sleeve vertical flow channel is in communication with the connector 2.

[0048] A rotary valve core 10 in communication with the rotary valve sleeve 7 is inserted in the valve sleeve transverse flow channel of the rotary valve sleeve 7, so that the water flowing down from the rotary valve sleeve 7 can enter the rotary valve core 10. The rotary valve core 10 is provided with a rotary valve core 10 flow channel, and an axial direction of the rotary valve core 10 flow channel is on the same straight line with the axis of the valve sleeve transverse flow channel.

[0049] Two ends of the rotary valve core 10 protrude from the valve sleeve transverse flow channel of the rotary valve sleeve 7, and protrusions of both ends are sleeved with a valve body 17 in communication with the rotary valve core 10. The valve body 17 is provided with a valve body 17 vertical flow channel in communication with the rotary valve core 10 flow channel and a valve body 17 transverse flow channel in communication with the valve body 17 vertical flow channel. An accommodating groove is provided below the valve body 17, and a rotating valve core 46 capable of rotating around the center axis of the accommodating groove is embedded in the accommodating groove. The rotating valve core 46 has an upper portion embedded in the accommodating groove and a lower portion disposed outside the accommodating groove, and the rotating valve core 46 is provided with a rotating valve core 46 flow channel in communication with the valve sleeve transverse flow channel.

[0050] The rotating valve core 46 is connected to a water outlet pipe in communication with the rotating valve core 46 at the bottom thereof. The water outlet pipe is connected to nozzles respectively on two sides thereof, the nozzles including a left nozzle and a right nozzle, where a shaft of the left nozzle and a shaft of the water outlet pipe form an angle , and a shaft of the right nozzle and the shaft of the water outlet pipe form an angle-a.

[0051] In this embodiment, a water inlet screen 1 is provided at the water inlet of the connector 2.

[0052] Meanwhile, the rotating valve core 46 is provided with a recess at an upper end thereof, and a steel ball 15 is rotationally provided in the recess, where the radius of a mouth of the recess is less than the radius of the steel ball 15, so that the steel ball 15 cannot fall out of the recess.

[0053] Meanwhile, the accommodating groove is riveted with a thin head rivet 14 at a bottom surface thereof, and the thin head rivet 14 and the steel ball 15 abut on each other.

[0054] In this embodiment, a first O-ring 6 is provided between the valve body 17 and the rotary valve core 10, an eleventh O-ring 50 is provided between the water outlet pipe 51 and the rotating valve core 46, a second O-ring 9 is provided between the rotary valve sleeve 7 and the rotary valve core 10, and an opening seal ring 30 is provided between the valve body 17 and the rotating valve core 46.

[0055] A first U-pin 8 is inserted in the valve body 17, and positions of the valve body 17 and the rotary valve core 10 are fixed by means of the first U-pin 8.

[0056] The rotating valve core 46 is connected to a sheath 49 at the bottom thereof, and the sheath 49 is fixedly disposed at the bottom of the rotating valve core 46 by means of threaded connection. Meanwhile, the sheath 49 is provided with a through hole at the bottom thereof, and the water outlet pipe 51 penetrates through the through hole.

[0057] Meanwhile, the valve body 17 is provided with a first plug 16 and a second plug 45 therein, and the water outlet pipe is provided with third plugs 53 at both ends.

[0058] In this embodiment, the valve body 17 is bolted to a pressure plate 48 at a bottom end thereof, positions of the valve body 17 and the rotating valve core 46 are fixed by means of the pressure plate 48.

[0059] As shown in FIG. 9, a high pressure water jet of the surface cleaner generates an action force F, the action force F generates a component force Fr in a circumferential direction of rotation around the center axis, and a reaction force of the component force Fr may push the nozzle 52 to rotate around the center axis. In addition, the action force F also generates a component force Fz in a direction parallel to the center axis, and the force Fz may act on a surface to be cleaned, thereby cleaning the surface.

[0060] During a cleaning process of the surface cleaner, the action force Fz applied by the high pressure water jet produced by the nozzle 52 to the ground forms a reaction force Fz, the two nozzles 52 may produce 2Fz upward thrust, and a combined force 2Fz+G is formed after deleting weights of the nozzles 52, the water outlet pipe 51, the sheath 49, the rotating valve core 46, and the steel ball 15 (assuming that a sum of the weights of these parts is G). The combined force is the upward thrust applied by the steel ball 15 to the thin head rivet 14. Since the steel ball 15 serves as the rotation support and a position on the thin head rivet 14 in contact with the steel ball 15 is a flat plane, there is theoretically only one contact point between the thin head rivet 14 and the steel ball 15, and the point is on the center axis. Under the action of the 2Fz+G force, the thin head rivet 14 and the steel ball 15 produce an extrusion deformation. Since the thin head rivet and the steel ball are both relatively hard steel parts, their actual deformations are small, and a contact surface produced due to the deformations therefore is very small. Accordingly, a linear velocity of a relative motion between the thin head rivet 14 and the steel ball 15 at the contact point during the cleaning process is very small, causing a very small amount of wear, and resulting in a quite long service life. Less material is consumed in fabricating such the structure which is very compact, and therefore the fabrication cost is low.

Embodiment II

[0061] As shown in FIGS. 10-11, in this embodiment, the valve body 17 is made of materials nylon and fiberglass, and a fixed valve sleeve 54 is inlaid between the valve body 17 and the rotating valve core 46, the fixed valve sleeve 54 being made of a metal material.

[0062] Such the structure has little change in pressure resistance and service life relative to that in Embodiment 1, but has more prominent price advantage because the materials of the valve body 17 are nylon and fiberglass.

[0063] The device embodiments described above are merely schematic, in which units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the modules may be selected according to an actual need to achieve the purposes of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement the present disclosure without the practice of inventive effort.

[0064] Finally, it should be noted that the above embodiments are used only to illustrate the technical solutions of the present disclosure and are not limitations thereto. Although the present disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recited in the above embodiments or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the spirit or scope of the technical solutions of the embodiments of the present disclosure.