CN219024663U

CN219024663U - Material needle assembly and spray gun adopting same

Info

Publication number: CN219024663U
Application number: CN202223507334.7U
Authority: CN
Inventors: 莫经雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-16
Anticipated expiration: 2032-12-28

Abstract

The utility model provides a material needle assembly, which comprises a material needle, wherein the material needle comprises a material needle main body, an annular groove is formed in the material needle main body, a material needle sleeve and a spring seat are sleeved on two sides of the annular groove respectively, and the annular groove is detachably connected with a limiting piece and used for limiting axial movement of the material needle sleeve and the spring seat; in another aspect of the utility model, a spray gun is provided; after the material needle in the material needle assembly is worn, the material needle can be taken out from the front end of the spray gun only by disassembling the limiting piece, the spray gun is not required to be replaced integrally, and the disassembly and the assembly are convenient.

Description

Material needle assembly and spray gun adopting same

Technical Field

The utility model relates to a material needle assembly and a spray gun adopting the same.

Background

A spray gun is a device that uses liquid or compressed air to rapidly release as a motive force. In the working process of the spray gun, the spray nozzle and the material needle are frequently collided due to the fact that the spray nozzle is frequently opened or closed, the material needle is easy to wear, the worn material needle cannot effectively close the spray nozzle, so that the spray gun cannot work normally, and the material needle needs to be replaced frequently. The existing material needle matched with the large-caliber nozzle is not easy to detach from the spray gun after being assembled, and the spray gun can only be integrally replaced after one end of the material needle, which is contacted with the nozzle, is partially worn, so that the material waste is large and the replacement cost is high.

Disclosure of Invention

In view of the above-mentioned shortcomings, the present utility model provides a needle assembly and a spray gun employing the same.

In order to achieve the above purpose, in one aspect, the utility model provides a material needle assembly, which comprises a material needle, wherein the material needle comprises a material needle main body, an annular groove is arranged on the material needle main body, a material needle sleeve and a spring seat are respectively sleeved on two sides of the annular groove, and the annular groove is detachably connected with a limiting piece and used for limiting axial movement of the material needle sleeve and the spring seat.

In the above-mentioned material needle assembly, the limiting piece is a split ring, and the external diameter of the split ring is greater than the external diameter of the material needle main body.

In the above-mentioned material needle assembly, the material needle further comprises a conical portion arranged at the front end of the material needle body, and the conical portion and the material needle sleeve are located at the same side of the limiting piece.

In the above material needle assembly, the material needle sleeve is hollow and cylindrical.

In the above-mentioned material needle assembly, the spring holder is kept away from the locating part direction is first tip and second tip in proper order, first tip and second tip are the cavity cylindric, and first tip and second tip internal diameter are the same, and the external diameter of second tip is less than the external diameter of first tip.

In another aspect, the present utility model provides a spray gun comprising the above-described needle assembly.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the structure of the material needle is optimized, after one end of the material needle matched with the nozzles with various sizes is partially worn out, the material needle can be taken out from the front end of the spray gun only by disassembling the limiting piece, the spray gun does not need to be integrally replaced, and the disassembly and the assembly are convenient; the material needle is convenient to process, and the coaxiality of the material needle is good, so that the spray gun has better atomization effect in the use process.

Drawings

FIG. 1 is an exploded view of a needle assembly according to the present aspect;

fig. 2 is a cross-sectional view of the spray gun according to the present embodiment.

Detailed Description

As shown in fig. 1 and fig. 2, the material needle assembly according to the embodiment of the utility model comprises a material needle 1, wherein the material needle 1 comprises a material needle main body 11 and a conical part 12 arranged at the front end of the material needle main body 11, the conical part 12 is matched with the inner cavity surface of a nozzle 5 and is used for sealing the nozzle 5, an annular groove 111 is arranged on the material needle main body 11, a limiting piece 4 is detachably connected to the annular groove 111, the limiting piece 4 can be an open check ring, the outer diameter of the open check ring is larger than that of the material needle main body 11, a material needle sleeve 2 and a spring seat 3 are respectively sleeved on two sides of the annular groove 111 of the material needle main body 1, and the limiting piece 4 limits the axial movement of the material needle sleeve 2 and the spring seat 3; wherein, material needle cover 2 is cavity cylindric, and spring holder 3 includes first tip 31 and second tip 32, and first tip 31 and second tip 32 are cavity cylindric, and first tip 31 and second tip 32 internal diameter are the same, and the external diameter of second tip 32 is less than the external diameter of first tip 31, and material needle cover 2 and spring holder 3's simple structure, be convenient for process.

The utility model also provides a spray gun, which comprises the material needle assembly, wherein the conical part 12 at the front end of the material needle 1 is abutted with the nozzle 5, the rear end of the material needle main body 11 is inserted into the spray gun shell 6, and the spring seat 3 is abutted with the first spring 8 arranged on the spray gun shell 6; at the moment, the material needle sleeve 2 is matched with the trigger 7 hinged on the spray gun shell 6, and the trigger 7 can be pulled to drive the material needle sleeve 2, the limiting piece 4 and the material needle 1 to move backwards in sequence, so that the nozzle 5 is opened; the trigger 7 is reset, the first spring 8 drives the spring seat 3, the limiting piece 4 and the material needle 1 to move forward in sequence through spring force, and the nozzle 5 is closed.

When the conical part 12 at the front end of the material needle 1 is worn, only the limiting piece 4 is required to be detached, the material needle 1 can be directly pulled out from the front end of the spray gun, the size is not limited, the spray gun does not need to be integrally replaced, and the disassembly and the assembly are convenient.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A needle assembly, characterized in that: including material needle (1), material needle (1) include material needle main part (11), be equipped with annular groove (111) on material needle main part (11), material needle main part (11) are equipped with material needle cover (2) and spring holder (3) in annular groove (111) both sides difference cover, annular groove (111) can dismantle connection locating part (4), be used for restricting the axial displacement of material needle cover (2) and spring holder (3).

2. A needle assembly according to claim 1, wherein: the limiting piece (4) is a split retaining ring, and the outer diameter of the split retaining ring is larger than the outer diameter of the needle main body (11).

3. A needle assembly according to claim 1, wherein: the material needle (1) further comprises a conical part (12) arranged at the front end of the material needle main body (11), and the conical part (12) and the material needle sleeve (2) are positioned on the same side of the limiting piece (4).

4. A needle assembly according to any one of claims 1 to 3, wherein: the material needle sleeve (2) is hollow and cylindrical.

5. A needle assembly according to any one of claims 1 to 3, wherein: the spring seat (3) is far away from the locating part (4) direction is first tip (31) and second tip (32) in proper order, first tip (31) and second tip (32) are cavity cylindric, and first tip (31) and second tip (32) internal diameter are the same, and the external diameter of second tip (32) is less than the external diameter of first tip (31).

6. A spray gun, characterized in that: comprising a material needle assembly according to any one of claims 1 to 5.