TWM620341U - Rear-pressing type water spray gun structure - Google Patents

Abstract

This invention creates a back pressure water spray gun structure, which includes: a water spray gun body, a valve stem, a water stop washer, a gasket, a pressing handle and an elastic member, wherein the water spray gun body is provided with a cavity inside A supporting groove and a through hole are arranged in sequence between the chamber and the rear end of the water spray gun body. The bottom of the water spray gun body is provided with a handle extending downward, the valve stem shaft is arranged in the cavity, and the valve stem has A shaft and a water control part connected to the front end of the shaft, the rear end of the shaft protrudes outside the rear side of the water spray gun body, the shaft is provided with a stop part, and the water control part is restricted along the cavity The axial displacement of the chamber, the water stop washer is installed in the receiving groove of the water spray gun body, the water stop washer is provided with a perforation, and the perforation is used for the shaft of the valve stem to penetrate and contact to form a water stop function. The water-stop washer fits together, the upper end of the press buckle handle is provided with a linkage portion, the lower end is provided with a handle portion, the linkage portion is pivotally connected to the valve stem, and the lower side of the linkage portion is provided with an abutment portion, and the elastic member springs against the Between the water control part of the valve stem and the gasket; by this, Bida can prevent the perforation of the water stop gasket from being expanded by the valve stem without the problem of water leakage.

Description

Back pressure spray gun structure

This creation is about a spray gun, especially a back pressure spray gun structure.

Press, water spray gun is a kind of appliance widely used in gardening irrigation work and general washing working environment. Generally, water spray guns mostly use pressing handles to control the opening and closing of the water. The pressing handles mainly include front pressure and back pressure Among them, the back pressure spray gun has the advantages of easy manufacture, low cost, convenient use, etc., so it is widely favored by consumers.

The conventional back pressure water spray gun includes: a water spray gun body, a valve stem, a pressing handle and a spring. A cavity, the valve stem shaft is arranged in the cavity, and the valve stem protrudes outside the rear side of the water spray gun body, and a water stop washer penetrates through the valve stem in the cavity near the rear side of the water spray gun body, The press buckle handle is pivoted on the back side of the handle, and the press buckle handle forms a long and narrow through slot adjacent to the top end, the valve stem is screwed with a spiral ring through the through slot, and the spring is sleeved on the valve Rod, so that the valve rod can be elastically reset. When you want to spray water, press the press buckle handle in the direction of the handle, and swing the press buckle handle to drive the displacement of the valve stem to control the water spray gun to spray water.

However, in the conventional rear pressure spray gun, when the press buckle handle is pressed toward the grip direction, the press buckle handle is pressed against the grip limit, which easily causes the swivel angle of the press buckle handle to be too large. The press buckle handle is pivotally connected to the back side of the handle, and a through groove near the top end is used for the valve stem to pass through and is screwed with a spiral ring. Therefore, the through groove of the press buckle handle drives the valve with a low arc stroke. The displacement of the stem causes the displacement of the valve stem to move up and down at the same time, resulting in the expansion of the perforation of the water stop gasket for the valve stem to penetrate, and there is a problem of water leakage, and the practicability is not good. Therefore, it is necessary to improve it.

In view of the above-mentioned shortcomings of the conventional post-pressure water spray gun, the creator of this creation is based on the idea of thinking and creation. After many discussions and trial samples, as well as many revisions and improvements, he launched this creation.

This creation provides a back pressure water spray gun structure, including: a water spray gun body with a cavity inside, a through hole is provided at the rear end of the water spray gun body to communicate with the cavity, and a bearing is provided between the cavity and the through hole. The water spray gun body is provided with a handle extending downwards from the bottom of the body of the water spray gun. The handle is provided with a flow channel in communication with the chamber; a valve stem, the shaft is arranged in the chamber, and the valve stem has A shaft and a water control part connected to the front end of the shaft, the rear end of the shaft protruding outside the rear side of the water spray gun body, the rear end of the shaft is provided with a pivot hole outside the rear side of the water spray gun body, the The shaft is provided with a stop part between the pivot hole and the water control part, the water control part is restricted to move along the axial direction of the chamber; a water stop washer is installed in the receiving groove of the water spray gun body, The water stop washer is provided with a perforation for the shaft of the valve stem to wear and contact to form a water stop function; a gasket is arranged in the cavity of the water spray gun body for the shaft of the valve stem to pass through. The gasket is attached to the water-stop washer; a press-fit handle with a linkage part at the upper end and a handle at the lower end, the linkage part is provided with a shaft hole, and a pivot is used to penetrate the shaft hole and the pivot of the valve stem Hole, so that the connecting part is pivotally connected with the valve stem, and the lower side of the linking part is provided with an abutting part; and an elastic member installed in the cavity of the water spray gun body to spring against the water control part of the valve stem And the gasket.

The main purpose of this creation of the rear pressure spray gun structure is that its pressing handle is pivotally connected to the rear end of the valve stem with a linkage part. When the handle of the pressing handle is pressed and the linkage part drives the valve stem to move backward, The valve stem can be maintained to move along the axial direction of the chamber of the water spray gun body, so as to prevent the perforation of the water stop gasket from being expanded by the valve stem, thereby avoiding the problem of water leakage, improving the practicability and prolonging the service life.

Hereinafter, in conjunction with the schematic diagram of the preferred embodiment of the creation, the following is further explained, in order to enable those who are familiar with the related technology of the creation to implement it according to the statement in this manual.

First of all, please refer to the first to fifth pictures. The structure of the post-pressure water spray gun of this creation includes: a water spray gun body 10, a valve stem 20, a water stop washer 30, a gasket 40, and a pressure The buckle 50 and an elastic member 60.

The water spray gun body 10 is provided with a chamber 11 inside. The front end of the chamber 11 is provided with an assembly port 111. The assembly port 111 is provided with a spray head 12. The chamber 11 is provided with a water outlet jacket 13 near the assembly port 111. The outlet jacket 13 is pressed and fixed by the water spray head 12. The outlet jacket 13 is provided with a set of holes 131. The rear end of the spray gun body 10 is provided with a groove 14 which is provided with a through hole 15 and the cavity 11 communicates with each other, a receiving groove 16 is provided between the cavity 11 and the through hole 15, a handle 17 extends downward from the bottom of the spray gun body 10, and a flow channel 171 is provided inside the handle 17 and the flow channel 171 It communicates with the chamber 11.

The valve stem 20 is axially arranged in the chamber 11, the valve stem 20 has a shaft 21 and a water control portion 22 connected to the front end of the shaft 21, and the rear end of the shaft 21 protrudes from the water spray gun body 10, the rear end of the shaft 21 is provided with a pivot hole 211 outside the rear of the water spray gun body 10, and the shaft 21 is provided with a stop portion 212 between the pivot hole 211 and the water control portion 22, The blocking portion 212 and the water control portion 22 are accommodated in the cavity 11, a water stop ring 221 is embedded in the outer edge of one end of the water control portion 22 close to the shaft 21, and a plurality of water control portions 22 are provided on the periphery. A water inlet 222, an end of the water control portion 22 away from the shaft 21 is provided with an outlet hole 223 communicating with the plurality of water inlet holes 222, and the water control portion 22 is slidably sleeved on the sleeve hole 131 of the water outlet jacket 13. The water stop ring 221 of the water control portion 22 is clamped against the end of the sleeve hole 131 of the water outlet jacket 13 to form a closed water spray state.

The water stop washer 30 is installed in the receiving groove 16 of the water spray gun body 10, the water stop washer 30 is provided with a through hole 31 for the shaft 21 of the valve stem 20 to pass through, and the hole edge of the through hole 31 At least one annular convex portion 311 is provided. The annular convex portion 311 contacts the shaft 21 of the valve stem 20 to form a water-stop function. The water-stop washer 30 is axially provided with an annular elastic groove toward the end surface of the chamber 11 32, so that the perforation 31 has a relatively large amount of elastic deformation.

The gasket 40 is arranged in the cavity 11 of the water spray gun body 10 for the shaft 21 of the valve stem 20 to pass through, and the gasket 40 is attached to the water-stop gasket 30.

The press buckle handle 50 is provided with an annular linkage portion 51 at the upper end, and a handle portion 52 at the lower end. The linkage portion 51 is sleeved in the groove 14 of the water spray gun body 10, and the linkage portion 51 is provided with a shaft hole 511 A pivot shaft 53 penetrates the shaft hole 511 and the pivot hole 211 of the valve stem 21, so that the connecting portion 51 is pivotally connected to the valve stem 21, and an abutment portion 54 is provided on the lower side of the linkage portion 51.

In this embodiment, the elastic member 60 is a conical spring, which is installed in the cavity 11 of the water spray gun body 10, and springs between the water control portion 22 of the valve stem 20 and the gasket 40, so that the valve stem 20 can elastically reset and fix the position of the spacer 40.

When you want to spray water, as shown in the sixth figure, press the handle 52 of the press buckle handle 50 toward the handle 17, and operate the abutment portion 54 of the press buckle handle 50 against the rear end of the water spray gun body 10 to swing. The linkage portion 51 of the press buckle handle 50 drives the valve stem 20 to move backward. The water control portion 22 of the valve stem 20 slides in the sleeve hole 131 of the outlet jacket 13, and the stop portion 212 of the valve stem 20 is clamped against the cushion The piece 40 limits the maximum swing angle of the press buckle handle 50, so that the water stop ring 221 of the water control part 22 is separated from the end of the sleeve hole 131 of the water outlet jacket 13, and the water inlet 222 of the water control part 22 is between the water spray gun body 10 If the chamber 11 is connected, the water flows into the chamber 11 of the water spray gun body 10 through the flow channel 171 of the handle 17, and flows to the water outlet hole of the water control part 22 through the water inlet 222 of the water control part 22 of the valve stem 20 223, spray out from the water spray head 12 to control the water spray gun to spray water.

From the structure of the above specific embodiment, the following benefits can be obtained:

In the post-pressure spray gun structure of the present invention, the pressing handle 50 is pivotally connected to the rear end of the valve stem 20 by a linkage portion 51. When the handle 52 of the pressing button handle 50 is pressed, the linkage portion 51 drives the valve stem 20 to move backward. At this time, the stopper portion 212 of the valve stem 20 can be clamped against the gasket 40 to limit the displacement stroke of the valve stem 20 and prevent the pressing handle 50 from rotating too much. It is matched with the water control portion 22 of the valve stem 20 in the water outlet jacket 13 The shaft 21 of the valve stem 20 slides in the perforation 31 of the water stop washer 30 to keep the valve stem 20 from moving axially along the cavity 11 of the water spray gun body 10, so as to avoid the perforation of the water stop washer 30 31 is expanded by the valve stem 20 to prevent water leakage, improve practicability, and extend the service life.

10: Water spray gun body 11: Chamber 111: assembly port 12: Water jet 13: Outlet jacket 131: set hole 14: Groove 15: Through hole 16: holding trough 17: Grip 171: Runner 20: Stem 21: Shaft 211: Pivot Hole 212: Stop 22: Water Control Department 221: Waterstop 222: water inlet 223: Water Outlet 30: Waterstop washer 31: Piercing 311: Ring flange 32: elastic groove 40: Gasket 50: Press buckle handle 51: Linkage Department 511: Shaft hole 52: handle 53: Pivot 54: Leaning Department 60: Elastic

The first picture is a three-dimensional picture of this creation. The second picture is a three-dimensional exploded view of this creation. The third figure is a cross-sectional view of the waterstop washer of this creation. The fourth picture is a cross-sectional view of this creation. The fifth image is a partial enlarged view of the fourth image. The sixth picture is a schematic diagram of the water spray action of this creation.

10: Water spray gun body

11: Chamber

111: assembly port

12: Water jet

13: Outlet jacket

131: set hole

14: Groove

15: Through hole

16: holding trough

17: Grip

171: Runner

20: Stem

21: Shaft

211: Pivot Hole

212: Stop

22: Water Control Department

221: Waterstop

222: water inlet

223: Water Outlet

30: Waterstop washer

31: Piercing

40: Gasket

50: Press buckle handle

51: Linkage Department

511: Shaft hole

52: handle

53: Pivot

54: Leaning Department

60: Elastic

Claims (7)

A back pressure spray gun structure, including: A water spray gun body is provided with a cavity inside, a through hole is provided at the rear end of the water spray gun body to communicate with the cavity, a receiving groove is provided between the cavity and the through hole, and a bottom of the water spray gun body extends downward Grip, a flow channel is provided inside the grip, and the flow channel is communicated with the chamber; A valve stem with a shaft arranged in the chamber. The valve stem has a shaft and a water control part connected to the front end of the shaft. A pivot hole is provided on the outside of the rear side of the water spray gun body, the shaft is provided with a stop part between the pivot hole and the water control part, and the water control part is restricted to move along the axial direction of the chamber; A water stop washer installed in the holding groove of the water spray gun body, the water stop washer is provided with a perforation, and the perforation is provided for the stem body of the valve stem to wear and contact to form a water stop function; A gasket is arranged in the cavity of the water spray gun body for the shaft of the valve stem to wear, and the gasket is attached to the water-stop gasket; A snap-on handle with a linkage portion at the upper end and a handle portion at the lower end. The linkage portion is provided with a shaft hole. Pivotally connected, and an abutting part is provided on the lower side of the linkage part; and An elastic piece is installed in the cavity of the water spray gun body, and elastically abuts between the water control part of the valve stem and the gasket. According to claim 1, the rear pressure type water spray gun structure, wherein the front end of the cavity of the water spray gun body is provided with an assembly port, the assembly port group is provided with a water spray head, the cavity is provided with a water outlet jacket near the assembly port, the A set of holes is provided in the water outlet jacket, a water stop ring is embedded in the outer edge of the water control part of the valve stem near one end of the shaft, and the water control part is provided with a plurality of water inlet holes on the periphery, and the water control part is far away from the shaft One end is provided with a water outlet hole communicating with the plurality of water inlet holes, the water control part sliding sleeve is in the sleeve hole of the water outlet jacket, and the water stop ring of the water control part is clamped against the end of the water outlet sleeve in the normal state, The water spray is turned off. According to claim 2, the rear pressure spray gun structure, wherein the water outlet jacket is pressed and fixed by the water spray head. According to claim 1, the rear pressure water spray gun structure, wherein the rear end of the water spray gun body is provided with a groove, and the linkage part of the press buckle handle is sleeved in the groove. According to claim 1, the rear pressure type water spray gun structure, wherein the perforated hole edge of the water stop gasket is provided with at least one ring convex part, the ring convex part contacts the shaft of the valve stem, and the water stop gasket faces the cavity The end surface of the chamber is provided with an annular elastic groove in the axial direction, so that the perforation has a larger amount of elastic deformation. According to claim 1, the rear pressure type water spray gun structure, wherein the linkage part of the press buckle handle is in a circular ring shape. According to claim 1, the rear pressure spray gun structure, wherein the elastic member is a conical spring.

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