Self-filtering spray gun

Abstract

The utility model provides a kind of self-filtering spray gun, belong to a kind of self-filtering spray gun.It solves the problem that existing paint spraying gun is easily affected by impurities, and the spraying effect is damaged.The self-filtering spray gun includes spray gun main body and connecting assembly, a press handle is provided on the spray gun main body, a control valve is further provided on the press handle, an L-shaped connecting lug is provided at one end of the spray gun main body, a connecting sliding groove is provided on the side wall of the connecting lug, a guide column is provided inside the connecting assembly, the guide column is connected in the connecting sliding groove, the spray gun main body and the connecting assembly are both provided with flow channels that penetrate and communicate with each other, a filter assembly is provided in the connecting lug, a sealing ring is provided at both ends of the filter assembly, and the filter assembly is respectively connected in the flow channels of the spray gun main body and the connecting assembly.The utility model has the advantages of easy disassembly and assembly, and good spraying effect.

Description

Technical Field

[0001] This utility model belongs to the field of spray gun technology and relates to a self-filtering spray gun. Background Technology

[0002] A paint spray gun is a tool that uses compressed air, electricity, or high pressure to atomize paint and spray it evenly onto the surface of an object. It is widely used in fields such as automotive repair, furniture painting, and industrial manufacturing.

[0003] Before use, paint is filled into the paint canister of the spray painting equipment. Impurities in the working environment can easily mix into the paint and enter the equipment. When the paint carrying impurities is sprayed onto the surface of the workpiece, it will cause an uneven paint surface, or the impurities will clog the spray gun, which may seriously damage the entire spray painting equipment. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a self-filtering spray gun with a quick filter replacement function.

[0005] The objective of this utility model can be achieved through the following technical solution: A self-filtering spray gun, characterized in that it includes a spray gun body and a connecting assembly. The spray gun body is provided with a pressing handle, and the pressing handle is also provided with a control valve. One end of the spray gun body is provided with an L-shaped connecting protrusion, and the side wall of the connecting protrusion is provided with a connecting groove. The connecting assembly is provided with a guide post inside, and the guide post is engaged in the connecting groove. Both the spray gun body and the connecting assembly are provided with through and interconnected flow channels. The connecting protrusion is provided with a filter assembly, and both ends of the filter assembly are provided with sealing rings, and the two ends of the filter assembly are respectively engaged in the flow channels of the spray gun body and the connecting assembly.

[0006] In the aforementioned self-filtering spray gun, the filter assembly is provided with a filter screen, the flow channel is provided with a limiting boss, the filter assembly is provided with an annular portion that abuts against the limiting boss, a right-angle leaf spring is located on the annular portion, and the inner wall of the connecting assembly is provided with a limiting groove that engages with the right-angle leaf spring.

[0007] In the aforementioned self-filtering spray gun, the annular portion is provided with a telescopic groove, and one end of the right-angle leaf spring is movably disposed within the telescopic groove.

[0008] In the aforementioned self-filtering spray gun, a magnetic ring is provided within the filter assembly. In the aforementioned self-filtering spray gun, a limiting slider is provided at the end of the pressing handle, and a locking boss supporting the limiting slider is provided on the spray gun body.

[0009] In the aforementioned self-filtering spray gun, the spray gun body has snap-fit ​​blocks on both sides, the connecting assembly has snap-fit ​​grooves inside, the spray gun body has locking pins, the end of the locking pins is fitted into the connecting assembly, and the locking pins have movable pull rings.

[0010] Compared with existing technologies, this self-filtering spray gun has a detachable connecting component at one end of the spray gun body, which allows the spray gun body to be quickly disassembled and assembled, and allows the addition of a filter component. The filter component intercepts impurities, reducing the amount of impurities mixed in with the paint, making the surface of the processed parts more beautiful. The right-angle leaf spring can move with the connecting assembly when the filter component is disassembled and assembled, making disassembly easier. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the self-filtering spray gun.

[0012] Figure 2 This is a structural diagram of the self-filtering spray gun for disassembly and assembly.

[0013] Figure 3 This is a schematic diagram of a half-section of the self-filtering spray gun.

[0014] Figure 4 This is a schematic diagram of the self-filtering spray gun connection assembly.

[0015] In the diagram, 1. Limiting slider; 2. Pull ring; 3. Locking pin; 4. Snap-fit ​​block; 5. Locking boss; 6. Control valve; 7. Press handle; 8. Connecting assembly; 9. Connecting protrusion; 10. Connecting groove; 11. Spray gun body; 12. Limiting boss; 13. Telescopic groove; 14. Limiting groove; 15. Right-angle leaf spring; 16. Flow channel; 17. Sealing ring; 18. Magnet ring; 19. Circular part; 20. Filter assembly; 21. Filter screen; 22. Snap-fit ​​groove; 23. Guide post. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] like Figure 1 , 2As shown in Figures 3 and 4, this self-filtering spray gun includes a spray gun body 11 and a connecting assembly 8. The spray gun body 11 is provided with a pressing handle 7, and the pressing handle 7 is also provided with a control valve 6. One end of the spray gun body 11 is provided with an L-shaped connecting protrusion 9, and the side wall of the connecting protrusion 9 is provided with a connecting groove 10. The connecting assembly 8 is provided with a guide post 23 inside, and the guide post 23 is engaged in the connecting groove 10. Both the spray gun body 11 and the connecting assembly 8 are provided with through and interconnected flow channels 16. The connecting protrusion 9 is provided with a filter assembly 20, and both ends of the filter assembly 20 are provided with sealing rings 17. The two ends of the filter assembly 20 are respectively engaged in the flow channels 16 of the spray gun body 11 and the connecting assembly 8. Before use, the spray gun body 11 and the connecting assembly 8 are pulled to both sides to install the filter assembly 20 into the spray gun body 11. Then, the spray gun body 11 and the connecting assembly 8 are moved towards each other to complete the assembly. When the paint passes through the spray gun body 11, it will be intercepted by the filter assembly 20.

[0018] Preferably, the filter assembly 20 is provided with a filter screen 21, and the flow channel 16 is provided with a limiting boss 12. The filter assembly 20 is provided with an annular portion 19 that abuts against the limiting boss 12. A right-angle leaf spring 15 is located on the annular portion 19. The inner wall of the connecting assembly 8 is provided with a limiting groove 14 that engages the right-angle leaf spring 15. When disassembling and replacing the filter assembly 20, the spray gun body 11 and the connecting assembly 8 are pulled to both sides. When separated, the right-angle leaf spring 15 will engage in the limiting groove 14, and the filter assembly 20 will move with the connecting assembly 8, which facilitates its subsequent disassembly. When installing the filter assembly 20, the filter assembly 20 is embedded in the flow channel 16 of the spray gun body 11. When the spray gun body 11 and the connecting assembly 8 are joined together, the right-angle leaf spring 15 will abut against the connecting assembly 8 and be squeezed towards the spray gun body 11 by the connecting assembly 8.

[0019] Preferably, the annular portion 19 is provided with a telescopic groove 13, and one end of the right-angle leaf spring 15 is movably disposed in the telescopic groove 13. The telescopic groove 13 allows the right-angle leaf spring 15 to be displaced and deformed when squeezed, so that it can be installed and closed more effortlessly.

[0020] Preferably, the filter assembly 20 is provided with a magnetic ring 18, which can attract and restrict metal impurities in advance.

[0021] Preferably, the end of the pressing handle 7 is provided with a limiting slider 1, and the spray gun body 11 is provided with a locking boss 5 that supports the limiting slider 1. During long-term spraying, the pressing handle 7 is pressed and the limiting slider 1 is moved so that the limiting slider 1 abuts against the locking boss 5. When stopping, the limiting slider 1 is slid to the left to unlock.

[0022] Preferably, the spray gun body 11 is provided with snap-fit ​​blocks 4 on both sides, the connecting component 8 is provided with snap-fit ​​grooves 22 inside, and the spray gun body 11 is provided with locking pins 3. The end of the locking pins 3 is fitted into the connecting component 8, and the locking pins 3 are provided with pull rings 2 for movable connection. During installation, the snap-fit ​​blocks 4 are embedded in the snap-fit ​​grooves 22 to increase the stability of the connection, and the locking pins 3 are locked after the spray gun body 11 is connected to the connecting component 8.

[0023] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0024] Although this document frequently uses terms such as 1. limiting slider, 2. pull ring, 3. locking pin, 4. snap-fit ​​block, 5. locking boss, 6. control valve, 7. pressing handle, 8. connecting assembly, 9. connecting protrusion, 10. connecting groove, 11. spray gun body, 12. limiting boss, 13. telescopic groove, 14. limiting groove, 15. right-angle leaf spring, 16. flow channel, 17. sealing ring, 18. magnetic ring, 19. circular part, 20. filter assembly, 21. filter screen, 22. snap-fit ​​groove, and 23. guide post, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A self-filtering spray gun, characterized in that, The spray gun body (11) and the connecting assembly (8) are included. The spray gun body (11) is provided with a pressing handle (7) and a control valve (6). One end of the spray gun body (11) is provided with an L-shaped connecting protrusion (9). The side wall of the connecting protrusion (9) is provided with a connecting groove (10). The connecting assembly (8) is provided with a guide post (23) inside. The guide post (23) is engaged in the connecting groove (10). Both the spray gun body (11) and the connecting assembly (8) are provided with through and interconnected flow channels (16). The connecting protrusion (9) is provided with a filter assembly (20). Both ends of the filter assembly (20) are provided with sealing rings (17), and both ends of the filter assembly (20) are engaged in the flow channels (16) of the spray gun body (11) and the connecting assembly (8) respectively.

2. The self-filtering spray gun according to claim 1, characterized in that, The filter assembly (20) is provided with a filter screen (21), the flow channel (16) is provided with a limiting boss (12), the filter assembly (20) is provided with an annular part (19) that abuts against the limiting boss (12), a right-angle leaf spring (15) is located on the annular part (19), and the inner wall of the connecting assembly (8) is provided with a limiting groove (14) that engages the right-angle leaf spring (15).

3. A self-filtering spray gun according to claim 2, characterized in that, The circular part (19) is provided with a telescopic groove (13), and one end of the right-angle leaf spring (15) is movably located in the telescopic groove (13).

4. A self-filtering spray gun according to claim 1, characterized in that, The filter assembly (20) is provided with a magnetic ring (18).

5. A self-filtering spray gun according to claim 1, characterized in that, The pressing handle (7) is provided with a limiting slider (1) at its end, and the spray gun body (11) is provided with a locking boss (5) that supports the limiting slider (1).

6. A self-filtering spray gun according to claim 1, characterized in that, The spray gun body (11) is provided with snap-fit ​​blocks (4) on both sides, the connecting component (8) is provided with snap-fit ​​groove (22) inside, the spray gun body (11) is provided with locking pin (3), the end of the locking pin (3) is fitted into the connecting component (8), and the locking pin (3) is provided with a movable pull ring (2).

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