CN214717616U

CN214717616U - Spray gun

Info

Publication number: CN214717616U
Application number: CN202120509862.2U
Authority: CN
Inventors: 梁礼华
Original assignee: Ningbo Huazhou Packaging Co ltd
Current assignee: Ningbo Huazhou Packaging Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-11-16
Anticipated expiration: 2031-03-10

Abstract

A spray gun comprises a gun body, a wrench, a piston, a nozzle head cap and an outer cover, wherein a piston cavity is transversely arranged in the middle of the gun body, the piston can be movably arranged in the piston cavity back and forth, the outer end of the piston is connected with the inner side of the wrench, a liquid inlet channel communicated with a liquid spraying channel and the piston cavity is longitudinally arranged at the rear part in the gun body, the lower end of the liquid inlet channel is connected with a suction pipe, a two-way valve is arranged in the liquid inlet channel, an upper valve of the two-way valve is arranged in the liquid inlet channel and positioned between the liquid spraying channel and the piston cavity, a lower valve is arranged in the liquid inlet channel and positioned above the suction pipe, when the wrench is pulled and the piston moves inwards along the piston cavity, the air pressure in the piston cavity is increased, the upper valve is opened, and the lower valve is closed to realize spraying; when the wrench is loosened and the piston moves outwards along the piston cavity, the upper valve is closed, the lower valve is opened, and the suction pipe sucks liquid in the container into the piston cavity. The utility model discloses the structure is simple more compact, the equipment is more convenient, through having the characteristics of processing convenience, use safe and reliable to the cost is also lower.

Description

Spray gun

Technical Field

The utility model belongs to the technical field of the spray pump, a spray gun is related to.

Background

The spray gun is a common hydraulic pump tool, is widely applied to the fields of household chemical cleaning agents, automobile protective products, gardening irrigation, disinfection and injection and the like, generally comprises a gun body, a piston rod, a trigger and the like, and is matched with a liquid container for use. The working principle of the liquid sprayer is that the reciprocating motion of the trigger increases the air pressure for the liquid container, so that the liquid in the liquid container is sprayed out. Wherein after the liquid is sprayed out, the trigger can automatically return under the action of the spring. However, the existing spray gun has the defects of complex structure and multiple accessories.

According to the investigation, the traditional Chinese patent CN202020713511.9, namely 'external spring type compact spray gun head', comprises a mounting seat, and a trigger, a spring part, a piston, a nozzle and a cover body which are arranged on the mounting seat; the mounting seat comprises a piston sleeve for mounting the piston; the piston is hermetically arranged in the piston sleeve, the trigger is arranged on the mounting seat and can rotate around the mounting seat, one end of the piston is connected with the trigger, the trigger drives the piston to reciprocate, one end of the spring part is arranged on the mounting seat and the cover body, and the other end of the spring part is arranged on the trigger and is used for collecting elastic potential energy to enable the trigger and the piston to automatically return; be provided with the hydrojet passageway in the mount pad, be formed with the piston chamber in the piston sleeve, piston chamber and hydrojet passageway intercommunication, one-way disk seat is installed to the bottom surface in piston chamber, is provided with first installing port and second installing port on the one-way disk seat, first installing port and hydrojet passageway intercommunication, the second installing port be used for with the bottle intercommunication, install one-way valve barrel on the one-way disk seat, one-way valve barrel includes the valve body, the upside integrated into one piece of valve body has first sealed bowl cover, the downside of valve body is provided with sealed ball bowl. This spray gun need set up disk seat, valve body, and the structure is simple compact enough yet, still needs further improvement.

Disclosure of Invention

The utility model aims to solve the technical problem that to foretell technical current situation and provide a spray gun that the structure is simple compact more, the equipment is more convenient, have processing convenience, use safe and reliable's characteristics.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an atomizing gun, includes the rifle body, install spanner, piston, nozzle head cap and dustcoat on the rifle body, wherein the internal upper portion of rifle transversely is equipped with liquid spray channel, and the nozzle head cap is installed and is linked together with liquid spray channel at the front end of the rifle body, and the spanner rotationally installs the front end at the rifle body, is located the below rear side of nozzle head cap, supports the elastic component between spanner and the rifle body, and the dustcoat shroud is on the upper portion of the rifle body, and the lower extreme of the rifle body is connected its characterized in that through big lid and container: the middle part of the gun body is transversely provided with a piston cavity, the piston can be movably arranged in the piston cavity back and forth, the outer end of the piston is connected with the inner side of the wrench, the rear part in the gun body is longitudinally provided with a liquid inlet channel communicated with the liquid spraying channel and the piston cavity, the lower end of the liquid inlet channel is connected with a suction pipe, a two-way valve is arranged in the liquid inlet channel and comprises an upper valve and a lower valve, the upper valve is arranged in the liquid inlet channel and positioned between the liquid spraying channel and the piston cavity, the lower valve is arranged in the liquid inlet channel and positioned above the suction pipe, when the wrench is pulled and the piston moves inwards along the piston cavity, the air pressure of the piston cavity is increased, the upper valve is opened, and the lower valve is closed to realize spraying; when the wrench is loosened and the piston moves outwards along the piston cavity, the upper valve is closed, the lower valve is opened, and the suction pipe sucks liquid in the container into the piston cavity.

As the improvement, the two-way valve is the integrative piece that forms by flexible material moulding plastics, and the two-way valve still includes a valve rod, and the upper end of valve rod withstands the location with the top inner wall of dustcoat, and inlet channel's lower extreme is equipped with the jack that the lower extreme of supplying the valve rod was planted, and inlet channel's lower extreme is linked together with the straw, goes up the valve and is upwards leaning out, the umbrella structure valve that outer fringe and inlet channel's inner wall offseted, and the lower valve is the circular valve block structure of outer end tilt up, and the lower terminal surface of lower valve offsets with the upper end of jack.

Furthermore, the elastic piece is a spring or an elastic supporting sheet, one end of the spring or the elastic supporting sheet is fixed on the front side of the lower end of the gun body, and the other end of the spring or the elastic supporting sheet is abutted against the inner side of the wrench, so that the wrench has the tendency of moving outwards all the time.

And finally, a connecting part connected with the large cover is formed at the lower end of the gun body, the upper end of the large cover is fixed on the connecting part, and a sealing gasket is lined between the large cover and the gun body.

Compared with the prior art, the utility model has the advantages of: the two-way valve is an integrated piece, a valve seat is not required to be arranged, the number of accessories is small, the structure is simple, and the assembly is convenient; wherein the upper valve or the lower valve is a one-way valve when viewed independently, and spraying and liquid feeding can be realized by pulling a wrench. The utility model discloses the structure is simple more compact, the equipment is more convenient, through having the characteristics of processing convenience, use safe and reliable to the cost is also lower.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention;

fig. 3 is a sectional view of the embodiment of the present invention in a state where the upper valve is opened and the lower valve is closed;

fig. 4 is a sectional view of the embodiment of the present invention in a state where the upper valve is closed and the lower valve is opened.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, an atomizing gun comprises a gun body 1, a wrench 2 mounted on the gun body 1, a piston 3, a nozzle head cap 6, a large cover 4 and an outer cover 5, wherein a liquid spraying channel 11 is transversely arranged at the upper part in the gun body 1, the nozzle head cap 6 is mounted at the front end of the gun body 1 and communicated with the liquid spraying channel 11, the wrench 2 is rotatably mounted at the front end of the gun body 1 and positioned at the lower rear side of the nozzle head cap 6, an elastic member 9 is supported between the wrench 2 and the gun body 1, the outer cover 5 covers the upper part of the gun body 1, and the lower end of the gun body 1 is connected with a container through the large cover 4. The middle part of the gun body 1 is transversely provided with a piston cavity 12, the piston 3 can be movably arranged in the piston cavity 12 from front to back, the outer end of the piston 3 is connected with the inner side of the wrench 2, the rear part in the gun body 1 is longitudinally provided with a liquid inlet channel 13 communicated with the liquid spraying channel 11 and the piston cavity 12, the lower end of the liquid inlet channel 13 is connected with a suction pipe 7, the lower end of the suction pipe 7 is inserted into a container, a two-way valve 8 is arranged in the liquid inlet channel 13, the two-way valve 8 comprises an upper valve 81 and a lower valve 82, the upper valve 81 is arranged in the liquid inlet channel 13 and is positioned between the liquid spraying channel 11 and the piston cavity 12, and the lower valve is arranged in the liquid inlet channel 13 and is positioned above the suction pipe 7. Two-way valve 8 is the integrative piece that forms by flexible material moulding plastics, two-way valve 8 still includes a valve rod 83, the upper end of valve rod 83 withstands the location with the top inner wall of dustcoat 5, inlet channel 13's lower extreme is equipped with the jack of the undergauge that supplies valve rod 83 to plant, inlet channel 13's lower extreme is linked together with straw 7, upward valve 81 is upwards leaning out simultaneously, the umbrella structure valve that the inner wall of outer fringe and inlet channel 13 offseted, lower valve 82 is the circular valve block structure of outer end tilt up, lower valve 82's lower terminal surface offsets with the upper end of jack. The elastic member 9 is a spring or an elastic support sheet, one end of the spring or the elastic support sheet is fixed on the front side of the lower end of the gun body 1, and the other end of the spring or the elastic support sheet is abutted against the inner side of the wrench 2, so that the wrench 2 has a tendency of moving outwards all the time. The lower end of the gun body 1 is formed with a connecting part connected with the large cover 4, the upper end of the large cover 4 is fixed on the connecting part, and a sealing gasket 40 is lined between the large cover 4 and the gun body 1.

The specific working principle is as follows:

in the initial state, the upper valve 81 and the lower valve 82 in the two-way valve 8 are in the closed state, as shown in fig. 1; when the wrench 2 is wrenched and the piston 3 moves inwards along the piston cavity 12, as shown in fig. 3, air in the piston cavity 12 is compressed, air pressure is increased, the upper valve 81 in the two-way valve 8 is forced to be opened (a in the figure), the lower valve 82 is still in a closed state (B in the figure), and air in the piston cavity 12 is exhausted along the upper valve 81 and the liquid spraying channel 11; when the wrench 2 is loosened, the wrench 2 moves outwards under the action of the spring or the elastic supporting piece, the piston 3 moves outwards along the piston cavity 12, as shown in fig. 4, the upper valve 81 is closed (C in the figure), the lower valve 82 is opened (D in the figure) under the action of vacuum suction, liquid in the container is sucked into the piston cavity 12 through the suction pipe 7, a discharging and sucking action is completed, after the discharging and sucking actions are repeated for a plurality of times continuously, the piston cavity 12 is filled with the liquid, and the liquid can be sprayed out from the nozzle head cap 6 after the action of the second time.

The spray gun of this embodiment is made by whole working of plastics, and the accessory is few, and is with low costs, and the equipment is simple and convenient.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an atomizing gun, includes the rifle body, install spanner, piston, nozzle head cap and dustcoat on the rifle body, wherein the internal upper portion of rifle transversely is equipped with liquid spray channel, and the nozzle head cap is installed and is linked together with liquid spray channel at the front end of the rifle body, and the spanner rotationally installs the front end at the rifle body, is located the below rear side of nozzle head cap, supports the elastic component between spanner and the rifle body, and the dustcoat shroud is on the upper portion of the rifle body, and the lower extreme of the rifle body is connected its characterized in that through big lid and container: the middle part of the gun body is transversely provided with a piston cavity, the piston can be movably arranged in the piston cavity back and forth, the outer end of the piston is connected with the inner side of the wrench, the rear part in the gun body is longitudinally provided with a liquid inlet channel communicated with the liquid spraying channel and the piston cavity, the lower end of the liquid inlet channel is connected with a suction pipe, a two-way valve is arranged in the liquid inlet channel and comprises an upper valve and a lower valve, the upper valve is arranged in the liquid inlet channel and positioned between the liquid spraying channel and the piston cavity, the lower valve is arranged in the liquid inlet channel and positioned above the suction pipe, when the wrench is pulled and the piston moves inwards along the piston cavity, the air pressure of the piston cavity is increased, the upper valve is opened, and the lower valve is closed to realize spraying; when the wrench is loosened and the piston moves outwards along the piston cavity, the upper valve is closed, the lower valve is opened, and the suction pipe sucks liquid in the container into the piston cavity.

2. The spray gun of claim 1, wherein: the two-way valve is the integrative piece that forms by flexible material moulding plastics, and the two-way valve still includes a valve rod, and the upper end of valve rod withstands the location with the top inner wall of dustcoat, and inlet channel's lower extreme is equipped with the jack that the lower extreme of confession valve rod was planted, and inlet channel's lower extreme is linked together with the straw, goes up the valve and is upwards lean out, the umbrella-shaped structure valve that outer fringe and inlet channel's inner wall offset, and the lower valve is the circular valve block structure of outer end tilt up, and the lower terminal surface of lower valve offsets with the upper end of jack.

3. The spray gun according to claim 1 or 2, characterized in that: the elastic piece is a spring or an elastic supporting sheet, one end of the spring or the elastic supporting sheet is fixed on the front side of the lower end of the gun body, and the other end of the spring or the elastic supporting sheet is abutted against the inner side of the wrench, so that the wrench has the tendency of moving outwards all the time.

4. The spray gun of claim 3, wherein: the lower end of the gun body is formed with a connecting part connected with the large cover, the upper end of the large cover is fixed on the connecting part, and a sealing gasket is arranged between the large cover and the gun body.