CN213133668U

CN213133668U - Spray gun

Info

Publication number: CN213133668U
Application number: CN202020937789.4U
Authority: CN
Inventors: 黄桥连; 王定军; 高文; 张桃燕
Original assignee: Runner Xiamen Corp
Current assignee: Runner Xiamen Corp
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-05-07
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a spray gun, which is characterized in that the spray gun comprises a shell, a switching component and a body, wherein the switching component is arranged in the shell, an elastic sealing element is arranged in the cavity of the body, the elastic sealing element is provided with a water inlet hole and a water outlet hole, the elastic sealing element is matched with the body to block or communicate a water outlet water path, and the cavity is divided into an upper cavity and a lower cavity by the elastic sealing element; the switching assembly comprises a piston part, the piston part can be switched between a first position and a second position of the upper cavity, and when the piston part is located at the first position, the piston part is in sealing fit with the water outlet hole; when the piston portion is in the second position, the piston portion is separated from the water outlet hole. The utility model discloses a switch module power value of spray gun is because not influenced by the water pressure, and it homoenergetic keeps the same pressing force value under no-load and any water pressure state, and then can satisfy the demand of the various pressure values of user, improves the effect that user experience felt.

Description

Spray gun

Technical Field

The utility model relates to a spray gun.

Background

At present, the spray gun button that exists in the market receives water pressure's influence, and when water pressure increased, the value of pressing that the button was opened also along with the increase, especially the pressure value was big when the high pressure, need long pressing when adding the spray gun and using, and the user operation is very inconvenient.

Disclosure of Invention

In order to solve the technical problem, an object of the utility model is to provide a spray gun.

The utility model discloses a following technical scheme realizes: a spray gun comprises a shell, a switching assembly and a body, wherein the switching assembly is arranged in the shell, an elastic sealing element is arranged in a cavity of the body, the elastic sealing element is provided with a water inlet and a water outlet, the elastic sealing element is matched with the body to block or communicate a water outlet waterway, and the cavity is divided into an upper cavity and a lower cavity by the elastic sealing element; the switching assembly comprises a piston part, the piston part can be switched between a first position and a second position of the upper cavity, and when the piston part is located at the first position, the piston part is in sealing fit with the water outlet hole; when the piston portion is in the second position, the piston portion is separated from the water outlet hole.

Preferably, when the piston portion is located at the first position, one end of the piston portion is in sealing fit with the upper end of the upper cavity to form a first sealing position, and the other end of the piston portion is in sealing fit with the water outlet hole to form a second sealing position, wherein the cross-sectional areas of the first sealing position and the second sealing position are equal or the difference between the cross-sectional areas of the first sealing position and the second sealing position is less than 30mm²。

Preferably, when the piston is at the first position, the pressure-bearing area of the upper cavity is larger than that of the lower cavity; when the piston is at the second position, the pressure-bearing area of the upper cavity is smaller than that of the lower cavity.

Preferably, the water inlet hole and the water outlet hole are respectively located on the side edge and the middle part of the elastic sealing element.

Preferably, the switching assembly comprises a switching shaft and a return spring, the return spring is sleeved on the switching shaft, one end of the switching assembly is connected with the switch assembly, and the other end of the switching assembly is matched with the elastic sealing element.

Preferably, the switching shaft includes a main body portion and the piston portion, and the main body portion is connected to the switch assembly to achieve axial movement of the switching shaft.

Preferably, a matching part is arranged in the cavity of the body, and the matching part is matched with the elastic sealing element to open or close the water outlet waterway.

Preferably, the elastic sealing element comprises a connecting part and a deformation part, the connecting part is connected with the body and is fixed by a pressing cap, and the elastic sealing element and the pressing cap form the upper cavity.

Preferably, a sealing ring is arranged between the pressing cap and the piston part.

Preferably, the spring further comprises a groove formed between the middle part and the peripheral side of the deformation part, one end of the spring abuts against the groove, and the other end of the spring is matched with the pressing cap.

The utility model discloses a switch module power value of spray gun is because not influenced by the water pressure, and it homoenergetic keeps the same pressing force value under no-load and any water pressure state, and then can satisfy the demand of the various pressure values of user, homoenergetic keeps the best feeling under any water pressure, also can realize easily pressing down simultaneously, reduces the pressure value, improves the effect that user experience felt.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a schematic diagram of the switch assembly of the present invention in the off state.

Fig. 5A is a schematic view of the water path of the switch assembly of the present invention in the open state.

Fig. 5B is a schematic view of the water path of the switch assembly of the present invention in the open state.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to the attached drawings 1 to 5A-5B of the specification, a spray gun comprises a shell 1, a switching component 2 and a body 3, wherein the switching component 2 is arranged in the shell 1, one end of the shell 1 is connected with a face cover component 10, and the other end of the shell is connected with the body 3; an elastic sealing element 30 is arranged in the body 3, the elastic sealing element 30 is arranged in the body 3 to divide the cavity in the body into an upper cavity 31 and a lower cavity 32, wherein the elastic sealing element 30 is provided with a water outlet 30a and a water inlet 30b, and preferably, the water inlet 30b and the water outlet 30a are respectively positioned at the side edge and the middle part of the elastic sealing element; specifically, the elastic sealing member 30 comprises a connecting portion 301 and a deformation portion 302, the cavity of the body 3 is provided with an engaging portion 3a which is engaged with the deformation portion 302 to open or close the water outlet path, wherein the connecting portion 301 is connected and fixed with the joint portion 3c in the body 3, and the elastic sealing member 30 is connected in the cavity of the body 3 by the pressing cap 4, and further, the upper cavity 31 is formed between the pressing cap 4 and the elastic sealing element 30, the deformation part 302 can be matched with the matching part 3a of the body to open or close the water outlet waterway h, the outlet hole 30a and the inlet hole 30b are respectively formed in the middle and the peripheral side of the deformation portion 302, preferably, a groove d is formed between the middle part and the peripheral side of the deformation part, the groove d can be used for accommodating a spring P, one end of the spring P is abutted against the groove d, and the other end of the spring P is matched with the pressing cap 4.

The switching assembly 2 comprises a switching shaft 21 and a return spring 22, one end of the switching assembly 2 is connected with the switch assembly 5, the other end of the switching assembly extends into the pressing cap 4 and then is matched with the water outlet hole 30a, the pressing cap 4 is provided with a through hole 4a, and the through hole and the water outlet hole are respectively positioned at the upper end and the lower end of the upper cavity; the switching shaft 21 includes a main body 21a and a piston 21b, the return spring 22 is sleeved on the main body 21a, the cross-sectional area of the main body is larger than that of the piston, the main body 21a is located in the receiving groove 41 of the pressing cap 4 and is in limit fit with the receiving groove 41, and the piston 21b continues to pass through the pressing cap 4 and then is in fit with the water outlet 30a of the elastic sealing element to open or close the water path of the water outlet. Preferably, a sealing ring k is arranged between the pressing cap 4 and the piston portion 21b, that is, the upper end of the piston portion 21b and the through hole 4a of the pressing cap are in sealing fit to form a first sealing position, and the lower end of the piston portion and the water outlet hole 30a are in sealing fit to form a second sealing position, so as to ensure the sealing performance of each water channel; wherein the cross-sectional areas of the first and second seals are equal or the difference between the cross-sectional areas of the first and second seals is less than 30mm²Therefore, when the switching shaft moves axially, the cross-sectional areas of the sealing surfaces at the upper end and the lower end of the switching shaft are the same or close to each other, the pressing pressure value of the switch assembly is not influenced by water pressure, a stable pressing value can be kept, and the use experience of a user is improved.

The operation of the spray gun of the present invention will be described with reference to fig. 4 and fig. 5A-5B. Referring to fig. 4, when the switch assembly 5 is in a closed state (the piston portion is located at the first position in the upper cavity), at this time, the switching shaft 21 blocks the water outlet hole 30a, the water outlet path is in a closed state, and at the same time, water flows enter from the water inlet hole 30b to make the pressure-bearing area of the upper cavity 31 larger than that of the lower cavity 32, and at this time, the deformation portion 302 of the elastic sealing member is tightly attached to the fitting portion 3a in the body cavity under the action of pressure difference to make the two seal and block the water outlet path; referring to fig. 5A to 5B, when the user switches the switch assembly 5, that is, when the switch assembly 5 is in an open state (the piston is located at the second position in the upper cavity), the switching shaft 21 moves upward, the sealing between the switching shaft 21 and the water outlet hole 30a is released, the water outlet hole 30a is filled with water, at this time, the pressure-bearing area of the upper cavity 31 is smaller than the pressure-bearing area of the lower cavity 32, the deformation portion 302 of the elastic sealing member is lifted upward and deformed, so that the sealing between the deformation portion 302 and the matching portion 3a is released, the water outlet channel h is communicated, and water flows to the surface cover assembly 10 through the water outlet channel for the user to use. Because the sizes of the upper sealing surface and the lower sealing surface of the spray gun are consistent when the switching shaft of the spray gun moves, the pressing pressure value of the switch assembly is not influenced by water pressure, and a relatively stable pressing value can be kept; thus, the utility model discloses a switch module power value of spray gun is owing to not influenced by the water pressure, and it homoenergetic keeps the same pressing force value under no-load and any water pressure state, and then can satisfy the demand of the various pressure values of user, homoenergetic keeps the best feeling under any water pressure, also can realize easily pressing down simultaneously, reduces the pressure value, improves the effect that user experience felt.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A spray gun is characterized by comprising a shell, a switching assembly and a body, wherein the switching assembly is arranged in the shell, an elastic sealing element is arranged in a cavity of the body, the elastic sealing element is provided with a water inlet and a water outlet, the elastic sealing element is matched with the body to block or communicate a water outlet waterway, and the cavity is divided into an upper cavity and a lower cavity by the elastic sealing element; the switching assembly comprises a piston part, the piston part can be switched between a first position and a second position of the upper cavity, and when the piston part is located at the first position, the piston part is in sealing fit with the water outlet hole; when the piston portion is in the second position, the piston portion is separated from the water outlet hole.

2. A spray gun according to claim 1, wherein when the piston portion is in the first position, one end of the piston portion is in sealing engagement with the upper end of the upper chamber to form a first seal, and the other end of the piston portion is in sealing engagement with the outlet hole to form a second seal, wherein the first seal and the second seal have the same cross-sectional area or the difference in cross-sectional area between the first seal and the second seal is less than 30mm²。

3. A spray gun according to claim 1, wherein the pressure-receiving area of the upper chamber is greater than the pressure-receiving area of the lower chamber when the piston portion is in the first position; when the piston part is at the second position, the pressure-bearing area of the upper cavity is smaller than that of the lower cavity.

4. A spray gun according to claim 1, wherein said inlet and outlet apertures are located in the lateral and central portions of said resilient sealing member, respectively.

5. The spray gun of claim 1 wherein said switch assembly includes a switch shaft and a return spring disposed about said switch shaft, said switch assembly being interconnected at one end to a switch assembly and at the other end to said elastomeric seal.

6. The spray gun of claim 5 wherein said switch shaft includes a body portion and said piston portion, said body portion being connected to said switch assembly for axial movement of said switch shaft.

7. The spray gun of claim 1 wherein said body has an engagement portion in said cavity, said engagement portion engaging said resilient seal to open or close said outlet path.

8. The spray gun of claim 1 wherein said resilient seal includes a connecting portion and a deformable portion, said connecting portion being connected to said body and secured by a compression cap, said resilient seal and said compression cap forming said upper chamber.

9. A spray gun according to claim 8, wherein a sealing ring is provided between the gland and the piston portion.

10. The spray gun of claim 8 further comprising a spring, wherein a groove is formed between the middle portion and the peripheral side of the deformation portion, one end of the spring abuts against the groove, and the other end of the spring is engaged with the press cap.