Anti-explosion high-pressure airless spray gun

Abstract

The utility model provides an anti-explosion high-pressure airless spray gun which comprises a spray gun body, an anti-explosion handheld assembly is arranged at the lower end of the spray gun body and comprises a feeding pipe and a handle, the feeding pipe and the handle are both fixedly connected with the lower end of the spray gun body, the handle is arranged outside the feeding pipe in a sleeved mode, a plurality of drainage grooves are formed in the handle, and the drainage grooves are communicated with the anti-explosion handheld assembly. The drainage groove is communicated with the outside; according to the utility model, the handle is sleeved outside the feeding pipe, and the inner wall of the handle is provided with the plurality of drainage grooves, so that when the feeding pipe is broken through by high-pressure fluid, the fluid can flow out to the outside through the drainage grooves in the handle, the injury to the hand of a user is reduced, and the use safety of the spray gun is improved.

Description

Technical Field

[0001] The utility model relates to an explosion-proof high-pressure airless spray gun. Background Art

[0002] High-pressure airless spray guns do not need air to atomize paint, but spray the paint increased to high pressure from the nozzle through the feed pipe to form atomized paint. It is easy to use and efficient. However, in the current high-pressure airless spray guns on the market, the user's hand is directly held on the feed pipe. When the feed pipe is broken by the high-pressure fluid, the hand is easily injured; therefore, the existing technology needs to be improved and developed. Summary of the invention

[0003] In view of the shortcomings existing in the above problems, the utility model provides an explosion-proof high-pressure airless spray gun.

[0004] To achieve the above-mentioned purpose, the utility model provides an explosion-proof high-pressure airless spray gun, a spray gun main body, and an explosion-proof hand-held component is provided at the lower end of the spray gun main body. The explosion-proof hand-held component includes a feed pipe and a handle, and the feed pipe and the handle are fixedly connected to the lower end of the spray gun main body. The handle is sleeved outside the feed pipe, and a plurality of drainage grooves are provided in the handle, and the drainage grooves are communicated with the outside.

[0005] Furthermore, a mounting bayonet is provided on the outer wall of the feed pipe.

[0006] Furthermore, the upper end of the feed pipe is connected to the lower end of the spray gun body by a threaded connection, a feed joint is fixed at the lower end of the feed pipe, a fixed seat for limiting the axial movement of the handle is provided between the feed pipe and the feed joint, a limit groove is provided at the lower end of the spray gun body, and a limit protrusion is correspondingly provided at the upper end of the handle.

[0007] Furthermore, a snap-in hole is provided on the fixing seat, a trigger guard frame is provided on the spray gun body, and the other end of the trigger guard frame is snapped into the snap-in hole.

[0008] Furthermore, a discharge channel communicating with a feed pipe is provided in the spray gun body, and a nozzle assembly is provided at the front end of the discharge channel of the spray gun body, and an inner cavity of the nozzle assembly is communicated with the discharge channel.

[0009] Furthermore, a needle plug assembly is provided in the discharge channel, and a trigger is hinged on the spray gun body. The trigger cooperates with the needle plug assembly to open or close the communication between the discharge channel and the inner cavity of the nozzle assembly.

[0010] Furthermore, the trigger is provided with an anti-accidental touch component, which includes a screw cap arranged on both sides of the trigger, a connecting shaft fixedly connecting the two screw caps, and a limiter fixedly arranged on the connecting shaft. The screw cap can rotate relative to the trigger, and the limiter has two states, unlocked and locked, as the screw cap rotates. When the limiter is in the unlocked state, the trigger can be rotated at will; when the limiter is in the locked state, the trigger cannot be rotated at will.

[0011] The beneficial effects of the utility model compared to the prior art are as follows: the utility model arranges a handle on the outside of the feed pipe, and the inner wall of the handle is provided with a plurality of leakage grooves. When the feed pipe is broken by the high-pressure fluid, the fluid will flow out to the outside through the leakage grooves inside the handle, thereby reducing the damage to the user's hands and improving the safety of the spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of an explosion-proof high-pressure airless spray gun of the utility model;

[0013] Figure 2 A three-dimensional diagram of the handle involved in this solution;

[0014] Figure 3 It is a stereoscopic view of the spray gun involved in this scheme. DETAILED DESCRIPTION

[0015] like Figure 1~Figure 3 As shown, an explosion-proof high-pressure airless spray gun of an embodiment of the utility model includes a nozzle assembly 1 and a spray gun body 2. An explosion-proof hand-held assembly is provided at the lower end of the spray gun body 2. The explosion-proof hand-held assembly includes a feed pipe 3 and a handle 4. The feed pipe 3 and the handle 4 are both fixedly connected to the lower end of the spray gun body 2, wherein the handle 4 is sleeved on the outside of the feed pipe 3; at the same time, a discharge channel 22 communicated with the feed pipe 3 is provided in the spray gun body 2, and the nozzle assembly 1 is connected to the front end of the spray gun body 2, and its inner cavity is communicated with the discharge channel 22.

[0016] Furthermore, if Figure 1 As shown, the upper end of the feed pipe 3 in this embodiment is connected to the lower end of the spray gun body 2 by a threaded connection, a feed joint 5 is fixedly arranged at the lower end of the feed pipe 3, a fixing seat 6 is arranged between the feed pipe 3 and the feed joint 5, and the fixing seat 6 is used to limit the axial movement of the handle 4; at the same time, a limiting groove 21 is arranged at the lower end of the spray gun body 2, and a limiting protrusion 42 is correspondingly arranged at the upper end of the handle 4, and the limiting protrusion 42 cooperates with the limiting groove 21 to limit the circumferential rotation of the handle 4.

[0017] Furthermore, if Figure 1 , Figure 2As shown, the outer wall of the feed pipe 3 in this embodiment is provided with a mounting socket 31 for clamping the wrench, and a plurality of drainage grooves 41 are provided in the handle 4, and the drainage grooves 41 are communicated with the outside; when the fluid pressure in the feed pipe 3 reaches the bursting threshold, the feed pipe 3 is ruptured by the high-pressure fluid, and the high-pressure fluid flows out to the outside through the drainage grooves 41 on the handle 4, which can reduce the damage to the user's hands and improve the safety of the spray gun.

[0018] Furthermore, if Figure 1 As shown, a needle plug assembly 8 is provided in the discharge channel 22 in this embodiment, and a trigger 9 is hinged on the spray gun body 2. The trigger 9 cooperates with the needle plug assembly 8 to open or close the connection between the discharge channel 22 and the inner cavity of the nozzle assembly 1.

[0019] Furthermore, if Figure 1 As shown, a snap-in hole 61 is provided on the fixing seat 6 in this embodiment, and a trigger guard frame 7 is provided on the spray gun body 2. The other end of the trigger guard frame 7 is snapped into the snap-in hole 61. The trigger guard frame 7 surrounds the trigger 9 therein to protect the user's hand safety during operation.

[0020] Furthermore, if Figure 1~Figure 3 As shown, the trigger 9 in this embodiment is provided with an anti-accidental touch component 10, which includes a screw cap 11 arranged on both sides of the trigger 9, a connecting shaft 12 fixedly connected to the two screw caps, and a limiter 13 fixedly arranged on the connecting shaft 12. The screw cap 11 can rotate relative to the trigger 9, and the limiter 13 rotates with the screw cap 11 and has two states: unlocked and locked. When the limiter 13 is in the unlocked state, the trigger 9 can be rotated at will; when the limiter 13 is in the locked state, the trigger 9 cannot be rotated at will. The structure is simple and can prevent the harm caused by accidentally touching and rotating the trigger 9.

[0021] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An explosion-proof high-pressure airless spray gun, comprising a spray gun body (2), characterized in that: An explosion-proof handheld component is provided at the lower end of the spray gun body (2), the explosion-proof handheld component comprising a feed pipe (3) and a handle (4), the feed pipe (3) and the handle (4) are both fixedly connected to the lower end of the spray gun body (2), the handle (4) is sleeved outside the feed pipe (3), a plurality of drainage grooves (41) are provided inside the handle (4), and the drainage grooves (41) are communicated with the outside.

2. The explosion-proof high-pressure airless spray gun according to claim 1, characterized in that: An installation bayonet (31) is provided on the outer wall of the feed pipe (3).

3. The explosion-proof high-pressure airless spray gun according to claim 1, characterized in that: The upper end of the feed pipe (3) is connected to the lower end of the spray gun body (2) by means of a thread, a feed joint (5) is fixedly provided at the lower end of the feed pipe (3), a fixing seat (6) for limiting the axial movement of the handle (4) is provided between the feed pipe (3) and the feed joint (5), a limiting groove (21) is provided at the lower end of the spray gun body (2), and a limiting protrusion (42) is correspondingly provided at the upper end of the handle (4).

4. The explosion-proof high-pressure airless spray gun according to claim 3, characterized in that: The fixing seat (6) is provided with a snap-fitting hole (61), the spray gun body (2) is provided with a trigger guard frame (7), and the other end of the trigger guard frame (7) is snap-fitted into the snap-fitting hole (61).

5. The explosion-proof high-pressure airless spray gun according to claim 1, characterized in that: The spray gun body (2) is provided with a discharge channel (22) communicating with the feed pipe (3), and the spray gun body (2) is provided with a nozzle assembly (1) at the front end of the discharge channel (22), and the inner cavity of the nozzle assembly (1) is communicated with the discharge channel (22).

6. The explosion-proof high-pressure airless spray gun according to claim 5, characterized in that: A needle plug assembly (8) is provided in the discharge channel (22), and a trigger (9) is hingedly connected to the spray gun body (2). The trigger (9) cooperates with the needle plug assembly (8) to open or close the connection between the discharge channel (22) and the inner cavity of the nozzle assembly (1).

7. The explosion-proof high-pressure airless spray gun according to claim 6, characterized in that: The trigger (9) is provided with an anti-accidental touch component (10), the anti-accidental touch component (10) comprising a screw cap (11) provided on both sides of the trigger (9), a connecting shaft (12) fixedly connected to the two screw caps, and a limiting member (13) fixedly provided on the connecting shaft (12); the screw cap (11) can rotate relative to the trigger (9), and the limiting member (13) rotates with the screw cap (11) and has two states, namely, unlocking and locking; when the limiting member (13) is in the unlocking state, the trigger (9) can rotate freely; when the limiting member (13) is in the locking state, the trigger (9) cannot rotate freely.

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