CN214917196U

CN214917196U - Spray gun

Info

Publication number: CN214917196U
Application number: CN202022340488.6U
Authority: CN
Inventors: 李祥锦
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-11-30
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a spray gun, including the rifle body (1), the rifle body (1) in be equipped with gas passage (101), gas passage (101) interior movable mounting have spray needle (3), its characterized in that: a sealing assembly is arranged between the spray needle (3) and the inner wall of the gas channel (101), and the sealing assembly comprises at least two sealing rings (4); one end face of the sealing ring (4) is a plane (401), and the other end face of the sealing ring (4) is provided with a conical groove (402); all the sealing rings (4) are sleeved outside the spray needle (3). The spray gun has good sealing effect and can effectively avoid the coating from flowing out of the gun body.

Description

Spray gun

Technical Field

The utility model relates to a spraying tool technical field more exactly relates to a spray gun.

Background

The spray gun is an important coating tool which can spray paint in a mist shape to achieve the purpose of uniform coloring, and is widely applied in the fields of cosmetics industry, decoration design, outdoor advertising, publishing printing, movie animation and the like. The spray gun comprises a gun body and a spray head assembly, wherein the spray head assembly is arranged at the front end of the gun body. The gun body is internally provided with a gas channel and a coating channel. The spray head assembly is internally provided with an air chamber which is communicated with the air channel, and the air channel can drive the coating in the coating channel to spray in a mist shape when being ventilated. The gas channel is internally provided with a spray needle, the end part of the spray needle extends into the spray head assembly, and the spray needle can move back and forth in the gas channel under the control of a trigger so as to control the opening or closing of the gas channel. Because the coating passageway communicates with the gas passage each other, in order to avoid coating outflow rifle body, will set up the sealing member between rifle body inner wall and spray needle and seal between the two. But the sealing effect of prior art's sealing member is relatively poor, and the coating still flows out from the gap between sealing member and rifle body inner wall and the spray needle easily to influence the result of use of spray gun, greatly reduced user's experience feels.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a spray gun, this spray gun is sealed effectual, can effectively avoid coating to flow from the rifle body.

The technical solution of the utility model is to provide a spray gun with the following structure, which comprises a gun body, wherein a gas channel is arranged in the gun body, a spray needle is movably arranged in the gas channel, a sealing component is arranged between the spray needle and the inner wall of the gas channel, and the sealing component comprises at least two sealing rings; one end face of the sealing ring is a plane, and a conical groove is formed in the other end face of the sealing ring; all the sealing rings are sleeved outside the spray needle.

After the structure more than adopting, the utility model discloses a spray gun compares with prior art, has following advantage:

the sealing component of the spray gun comprises at least two sealing rings; one end face of the sealing ring is a plane, and a conical groove is formed in the other end face of the sealing ring; all sealing rings all registrate outside the spray needle, receive the effect of sealing ring structure, coating can flow into in the toper recess when flowing out from the gap between sealing ring and the air current passageway inner wall or between sealing ring and the nozzle, can effectively avoid coating to flow out the rifle body, sealed effect is better, can effectively improve the result of use of spray gun, greatly reduced user's experience feels.

As an improvement, two adjacent sealing rings are tightly attached together, and the end face of one sealing ring, which is provided with a plane, is attached to the end face of the sealing ring, which is provided with a conical groove. By adopting the structure, the sealing effect is optimal.

As an improvement, the sealing ring is provided with one side of the plane end surface close to the needle point of the spray needle. After adopting this kind of structure, further improve sealed effect.

As the improvement, the number of the sealing rings is three. After the structure is adopted, the design is most reasonable in terms of cost and sealing effect.

As an improvement, an installation seat is arranged in the gas channel, a cavity of the installation seat is communicated with the gas channel, and the sealing assembly is installed in the installation seat. After adopting this kind of structure, easy to assemble seal assembly.

As an improvement, the mounting seat is provided with a limiting step, one side of the sealing assembly abuts against the limiting step, the mounting seat is connected with a limiting part on the other side of the sealing assembly, and the limiting part limits the sealing assembly in the mounting seat. After adopting this kind of structure, can be spacing in the mount pad with seal assembly, sealed effect is better, and the structure is also more reliable.

As an improvement, the limiting piece is in threaded connection with the mounting base. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, one end of the limiting piece, which is far away from the sealing assembly, is provided with a notch. After adopting this kind of structure, conveniently rotate the locating part through the instrument, it is more convenient to assemble.

Drawings

Fig. 1 is a schematic perspective view of the spray gun of the present invention.

Fig. 2 is a schematic perspective view of the body of the spray gun of the present invention.

Fig. 3 is a schematic perspective view of the spray gun according to another angle of the present invention.

Fig. 4 is a schematic view of an assembly structure of the needle, the sealing assembly and the locating part of the spray gun of the present invention.

Fig. 5 is a schematic perspective view of a seal ring of the spray gun according to the present invention.

Fig. 6 is a schematic perspective view of another angle of the sealing ring of the spray gun according to the present invention.

Shown in the figure: 1. the spray gun comprises a gun body, 2, a spray head assembly, 3, a spray needle, 4, a sealing ring, 401, a plane, 402, a conical groove, 5, a limiting piece, 501 and a notch.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," and/or "containing," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

As shown in fig. 1 to 6, the utility model discloses a spray gun, which comprises a gun body 1 and a spray head component 2, wherein the spray head component 2 is arranged at one end of the gun body 1.

The gun body 1 is internally provided with a gas channel and a coating channel. The spray head assembly 2 is internally provided with an air chamber which is communicated with the air channel 101, and the air channel 101 can drive the paint in the paint channel to spray in a mist shape when being ventilated. The gas channel 101 is internally provided with a spray needle 3, the needle tip end part of the spray needle 3 extends into the spray head assembly 2, and the spray needle 3 can move back and forth in the gas channel 101 under the control of a trigger so as to control the opening or closing of the gas channel 101.

And a sealing assembly is arranged between the spray needle 3 and the inner wall of the gas channel 101. The sealing assembly comprises at least two sealing rings 4, and in the embodiment, three sealing rings 4 are provided. One end face of the sealing ring 4 is a plane 401, a conical groove 402 is arranged on the other end face of the sealing ring 4, and a through hole is formed in the bottom of the conical groove 402. The gas channel 101 is internally provided with an installation seat 102, the installation seat 102 is a radial groove of the gas channel, and the installation seat 102 is provided with a limiting step. The three sealing rings 4 are tightly attached to each other in the mounting seat 102, two adjacent sealing rings 4 are tightly attached to each other, and the end face of one sealing ring 4, which is provided with the plane 401, is attached to the end face of the sealing ring 4, which is provided with the tapered groove 402. The spray needle 3 penetrates through holes of three sealing rings 4 to be installed in the gas channel 101, and the end face, provided with a plane 401, of each sealing ring 4 is close to one side of the needle point of the spray needle 3. The plane 401 of the sealing ring 4 closest to the needle tip of the spray needle 3 is abutted against the limit step. The outer side of the sealing ring 4 farthest from the needle tip of the needle 3 is connected with a limiting piece 5, the limiting piece 5 limits the sealing assembly in the mounting seat 102, and the limiting piece 5 is in threaded connection with the mounting seat 102. One end of the limiting part 5, which is far away from the sealing component, is provided with a notch 501.

The utility model discloses a during the spray gun used, the round trip movement in gas passage 101 of spray needle 3, spray needle 3 is at the in-process that closes, and the coating that flows into in the gas passage 101 can follow sealing washer 4 and gas passage 101 inner wall and the gap department before spray needle 3 and flow, flows in the conical groove 402 of sealing washer 4, stores temporarily in this conical groove 402.

Claims

1. The utility model provides a spray gun, includes the rifle body (1), the rifle body (1) in be equipped with gas passage (101), gas passage (101) in movable mounting have spray needle (3), its characterized in that: a sealing assembly is arranged between the spray needle (3) and the inner wall of the gas channel (101), and the sealing assembly comprises at least two sealing rings (4); one end face of the sealing ring (4) is a plane (401), and the other end face of the sealing ring (4) is provided with a conical groove (402); all the sealing rings (4) are sleeved outside the spray needle (3).

2. The spray gun of claim 1, wherein: two adjacent sealing rings (4) are tightly attached together, and the end face of one sealing ring (4) provided with the plane (401) is attached to the end face of the sealing ring (4) provided with the conical groove (402).

3. The spray gun of claim 2, wherein: the end face of the sealing ring (4) provided with the plane (401) is close to one side of the needle tip of the spray needle (3).

4. The spray gun of claim 3, wherein: the number of the sealing rings (4) is three.

5. A lance as claimed in any one of claims 1 to 4, in which: an installation seat (102) is arranged in the gas channel (101), a cavity of the installation seat (102) is communicated with the gas channel (101), and the sealing assembly is installed in the installation seat (102).

6. The spray gun of claim 5, wherein: the mounting seat (102) is provided with a limiting step, one side of the sealing assembly abuts against the limiting step, the mounting seat (102) is provided with a limiting part (5) on the other side of the sealing assembly, and the limiting part (5) limits the sealing assembly in the mounting seat (102).

7. The spray gun of claim 6, wherein: the limiting piece (5) is in threaded connection with the mounting base (102).

8. The spray gun of claim 7, wherein: one end, far away from the sealing assembly, of the limiting part (5) is provided with a notch (501).