Paint spray gun

Abstract

The utility model discloses a paint spray gun, and relates to the field of paint spraying devices, the paint spray gun comprises a spray gun body, the spray gun body is provided with an adjusting assembly used for adjusting the paint spraying angle, and the paint spray gun is characterized in that the adjusting assembly comprises a hose detachably installed at the paint spraying end of the spray gun body. When the spray gun is used, the first locking piece and the second locking piece are loosened, so that the rotating ring rotates on the spray gun body, the spray head is driven to rotate, then the spray head is swung, the connecting plate rotates on the connecting pipe and the connecting rod, the angle of the spray head is adjusted, then the first locking piece and the second locking piece are tightened, the spray head is fixed, and the spray head sprays at different angles; the problems that when the lower surfaces and lower private parts of I-shaped steel and the like are sprayed, vertical spraying cannot be achieved, falling paint is usually attached to the spraying face due to the dead weight, the paint adhesive force is insufficient, and the paint face is uneven in thickness are solved as much as possible.

Description

Technical Field

[0001] This application relates to the field of paint spraying apparatus, and more particularly to a paint spray gun. Background Technology

[0002] A paint spray gun is a tool specifically designed for spraying paint. Its main principle is to use an air pump to turn gas into high pressure, which is then sprayed out along with the paint, causing the paint to be sprayed onto the surface of the object in a fan-shaped or gaseous manner, forming a smooth paint film. In the current painting industry, when workers use a spray gun to spray paint, they usually need to hold the nozzle perpendicular to the work surface. This allows for efficient spraying, and the sprayed paint has strong adhesion, is evenly applied, and has less of an excessively thick paint layer, resulting in less paint waste.

[0003] Utility model patent CN205392825U discloses a paint spray gun, including a gun body, a gun head assembly, an air pipe connector, a needle adjustment device, and a feeding device. The gun head assembly includes an outer nozzle, an inner nozzle, and a nozzle oil passage, and a flow regulating valve is provided in the gun head assembly. The gun body includes a gun body air passage and a gun body oil passage. The needle adjustment device includes a needle and a needle knob. The feeding device is located on the top of the gun body and is connected to the gun body oil passage through a pipe. A wrench is installed at the bottom of the gun body, and a spring is provided between the wrench and the gun body. When the spring is in its natural state, it will block the gun head. The wrench is connected to the flow regulating valve to facilitate control of the spray flow of the gun head.

[0004] When one of the aforementioned paint spray guns needs to be used to spray steel structure ceilings, the steel structure beams are usually composed of I-beams and channel steel. When spraying the lower surface and lower recess of the I-beams, it is not possible to spray vertically. Usually, the paint adheres to the sprayed surface by its own weight, resulting in insufficient paint adhesion and uneven paint thickness. Utility Model Content

[0005] To address the aforementioned problems, this application provides a paint spray gun.

[0006] The paint spray gun provided in this application adopts the following technical solution:

[0007] A paint spray gun includes a spray gun body with an adjustment assembly for adjusting the spray angle. The adjustment assembly includes a flexible hose detachably installed at the spray end of the spray gun body. An operation box is fixedly connected to one end of the flexible hose away from the spray gun body. A nozzle is installed on the other side wall of the operation box. A rotating ring is rotatably connected to one end of the spray gun body near the nozzle. Two annular array connecting pipes are fixedly connected to the side wall of the rotating ring. Each connecting pipe is fitted with a connecting plate. Connecting rods are fixedly connected to the two side walls of the operation box. The ends of the connecting plates away from the connecting pipes are respectively fitted onto the connecting rods. A first locking element is provided on the connecting pipe to prevent the rotating ring and the connecting plate from rotating. A second locking element is provided on the connecting rod to prevent the connecting plate from rotating.

[0008] By adopting the above technical solution, during use, the user first loosens the first and second locking parts to allow the rotating ring to rotate on the spray gun body, driving the nozzle to rotate. Then, the user swings the nozzle to allow the connecting plate to rotate on the connecting pipe and connecting rod, adjusting the nozzle angle so that the nozzle faces different directions. Then, the user tightens the first and second locking parts to prevent the connecting plate and rotating ring from rotating, fixing the nozzle and allowing the nozzle to spray at different angles. This avoids the problem of insufficient paint adhesion and uneven paint thickness when spraying the lower surface and lower recess of H-beams, which is impossible to spray vertically and usually relies on the paint falling to adhere to the sprayed surface by its own weight.

[0009] Preferably, the first locking member includes two screws respectively disposed on one side of the connecting pipe. One end of the screw is fixedly connected to a fixed plate, and the other end of the screw passes through the connecting pipe and is threadedly connected to the rotating ring. An abutment ring is sleeved on the end of the screw near the fixed plate, and a plurality of annular array springs are fixedly connected between the abutment ring and the fixed plate.

[0010] By adopting the above technical solution, after adjusting the nozzle angle, the screw is rotated by rotating the fixed plate, which brings the abutting ring close to the connecting plate and abuts the connecting plate against the rotating ring to prevent the connecting plate from rotating on the connecting pipe. Then, the fixed plate is rotated again to compress the spring, and at the same time, one end of the screw abuts against the spray gun body to prevent the rotating ring from rotating.

[0011] Preferably, the second locking member includes two abutment plates respectively sleeved on the connecting rod, a locking rod is provided between the two abutment plates, the two ends of the locking rod respectively pass through the abutment plates, one end of the locking rod is fixedly connected to an abutment plate, and the other end of the locking rod is threadedly connected to a locking ring.

[0012] By adopting the above technical solution, by rotating the locking ring, the locking ring is brought closer to the abutment plate, which pushes the two abutment plates closer to each other, causing the abutment plates to push the connecting plate and abut against the operating box, preventing the connecting plate from rotating on the connecting rod.

[0013] Preferably, each spring is provided with a positioning rod, one end of which is fixedly connected to the abutment ring, and the other end of which passes through the fixing plate.

[0014] By adopting the above technical solution, the positioning rod can prevent the abutment ring from being difficult to rotate when the fixed plate is rotated after it abuts against the connecting plate, which would cause the spring to twist and be damaged.

[0015] Preferably, a fixing block is fixedly connected to the top of the operation box and sleeved on the locking rod. A limiting groove is formed on one side wall of the locking rod, and a slider is slidably connected in the limiting groove. The end of the slider away from the limiting groove is fixedly connected to the fixing block.

[0016] By adopting the above technical solution, the stability of the locking rod can be maintained by the fixing block, and the locking rod can be prevented from rotating by the limiting groove and the slider, making it convenient to rotate the locking ring.

[0017] Preferably, rubber pads are fixedly connected to both sides of the connecting plate.

[0018] By adopting the above technical solution, the friction of the connecting plates when they come into contact can be increased by using rubber pads, thus preventing the connecting plates from swaying.

[0019] Preferably, guide rods are fixedly connected to the two side walls of the operation box, and the end of the guide rod away from the operation box passes through the abutment plate and is fixedly connected to the limit block.

[0020] By adopting the above technical solution, the guide rod can improve the stability of the abutment plates when they approach each other and prevent the abutment plates from tilting.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. This application utilizes the cooperative arrangement of structures such as a rotating ring, connecting rod, and connecting plate. During use, the user first loosens the first and second locking parts to allow the rotating ring to rotate on the spray gun body, thereby rotating the nozzle. Then, the user swings the nozzle to rotate the connecting plate on the connecting pipe and connecting rod, adjusting the nozzle angle so that the nozzle faces different directions. Finally, the user tightens the first and second locking parts to prevent the connecting plate and rotating ring from rotating, thus fixing the nozzle and allowing it to spray at different angles. This avoids the problem of insufficient paint adhesion and uneven paint thickness when spraying the lower surfaces and recesses of H-beams, where vertical spraying is impossible and the paint usually adheres to the sprayed surface by its own weight.

[0023] 2. The fixing block can maintain the stability of the locking rod and prevent it from shaking. At the same time, the limiting groove and slider can prevent the locking rod from rotating and facilitate the rotation of the locking ring so that the locking ring is close to the abutment plate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a paint spray gun according to an embodiment of this application;

[0025] Figure 2 This is an exploded view of the connection structure between the screw and the connecting pipe, which is the main embodiment of this application.

[0026] Figure 3 This is a schematic diagram illustrating the structure of the second locking member, which is the main feature of this application embodiment.

[0027] Figure 4 The embodiments of this application mainly embody Figure 3 A schematic diagram of the enlarged structure of region A in the middle.

[0028] Reference numerals: 1. Spray gun body; 2. Hose; 3. Control box; 4. Nozzle; 5. Rotating ring; 6. Connecting pipe; 7. Connecting plate; 8. Connecting rod; 9. Fixing plate; 10. Abutment ring; 11. Spring; 12. Abutment plate; 13. Locking rod; 14. Abutment plate; 15. Locking ring; 16. Positioning rod; 17. Fixing block; 18. Limiting groove; 19. Slider; 20. Rubber pad; 21. Guide rod; 22. Limiting block; 23. Screw. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0030] This application discloses a paint spray gun.

[0031] Reference Figure 1 , Figure 2 and Figure 3A paint spray gun includes a spray gun body 1, and the spray gun body 1 is provided with an adjustment component for adjusting the spray angle. The adjustment component includes a hose 2, an operation box 3, a nozzle 4, a rotating ring 5, a connecting pipe 6, a connecting plate 7, and a connecting rod 8.

[0032] The hose 2 is detachably installed on the spraying end of the spray gun body 1. The operation box 3 is fixedly connected to the end of the hose 2 away from the spray gun body 1. The nozzle 4 is installed on the other side wall of the operation box 3 to spray paint. The rotating ring 5 is rotatably connected to the end of the spray gun body 1 near the nozzle 4. Two connecting pipes 6 are provided, both fixedly connected to the side wall of the rotating ring 5 and arranged in a circular array. The connecting pipes 6 are connected to the rotating ring 5. Two connecting plates 7 are provided and respectively sleeved on the connecting pipes 6. Two connecting rods 8 are provided and respectively fixedly connected to the two side walls of the operation box 3. The end of the connecting plate 7 away from the connecting pipe 6 is respectively sleeved on the connecting rod 8. The connecting pipe 6 is provided with a first locking element to prevent the rotating ring 5 and the connecting plate 7 from rotating. The connecting rod 8 is provided with a second locking element to prevent the connecting plate 7 from rotating.

[0033] Reference Figure 2 The first locking component includes two screws 23 respectively disposed on one side of the connecting pipe 6. One end of the screw 23 is fixedly connected to a fixed plate 9, and the other end of the screw 23 passes through the connecting pipe 6 and the rotating ring 5 and is threadedly connected to it. An abutment ring 10 is sleeved on the end of the screw 23 near the fixed plate 9. A plurality of annular array springs 11 are fixedly connected between the abutment ring 10 and the fixed plate 9. After the nozzle 4 angle is adjusted, the screw 23 is rotated by rotating the fixed plate 9, so that the abutment ring 10 approaches the connecting plate 7 and abuts the connecting plate 7 against the rotating ring 5 to prevent the connecting plate 7 from rotating on the connecting pipe 6. Then, the fixed plate 9 is rotated again to compress the springs 11. At the same time, one end of the screw 23 abuts against the spray gun body 1 to prevent the rotating ring 5 from rotating.

[0034] Reference Figure 3 The second locking component includes two abutment plates 12 respectively sleeved on the connecting rod 8. A locking rod 13 is provided between the two abutment plates 12. Both ends of the locking rod 13 pass through the abutment plates 12 respectively. One end of the locking rod 13 is fixedly connected to an abutment plate 14, and the other end of the locking rod 13 is threadedly connected to a locking ring 15. By rotating the locking ring 15, the locking ring 15 is brought closer to the abutment plate 14, which pushes the two abutment plates 12 closer to each other, causing the abutment plates 12 to push the connecting plate 7, and abutting the connecting plate 7 against the operating box 3, preventing the connecting plate 7 from rotating on the connecting rod 8.

[0035] Reference Figure 2Each spring 11 is equipped with a positioning rod 16. One end of the positioning rod 16 is fixedly connected to the abutment ring 10, and the other end of the positioning rod 16 passes through the fixing plate 9. The positioning rod 16 can prevent the abutment ring 10 from being difficult to rotate when the fixing plate 9 is rotated after it abuts against the connecting plate 7, which would cause the spring 11 to be twisted and damaged.

[0036] Reference Figure 3 and Figure 4 The top of the operation box 3 is fixedly connected to a fixing block 17 sleeved on the locking rod 13. A limit groove 18 is opened on one side wall of the locking rod 13. A slider 19 is slidably connected in the limit groove 18. The end of the slider 19 away from the limit groove 18 is fixedly connected to the fixing block 17. The fixing block 17 can maintain the stability of the locking rod 13. At the same time, the locking rod 13 can be prevented from rotating by the limit groove 18 and the slider 19, which facilitates the rotation of the locking ring 15.

[0037] Reference Figure 2 and Figure 3 Rubber pads 20 are fixedly connected to both sides of the connecting plate 7. The rubber pads 20 can increase the friction when the connecting plate 7 is in contact, and prevent the connecting plate 7 from swinging.

[0038] Reference Figure 3 Guide rods 21 are fixedly connected to the two side walls of the operation box 3. The end of the guide rod 21 away from the operation box 3 passes through the abutment plate 12 and is fixedly connected to the limit block 22. The guide rods 21 can improve the stability of the abutment plate 12 when they approach each other and prevent the abutment plate 12 from tilting.

[0039] The implementation principle of a paint spray gun according to this application embodiment is as follows: In use, the user first loosens the screw 23 and locking ring 15, causing the rotating ring 5 to rotate on the spray gun body 1, which in turn drives the nozzle 4 to rotate. Then, the user swings the nozzle 4, causing the connecting plate 7 to rotate on the connecting pipe 6 and connecting rod 8, adjusting the angle of the nozzle 4 so that the nozzle 4 faces different directions. Next, by rotating the fixing plate 9, the user drives the screw 23 to rotate, causing the abutment ring 10 to approach the connecting plate 7, placing one end of the connecting plate 7 against the rotating ring 5 to prevent the connecting plate 7 from rotating on the connecting pipe 6. Then, the user continues to rotate the fixing plate 9, compressing the spring 11, while simultaneously rotating the screw... One end of 23 abuts against the spray gun body 1 to prevent the rotating ring 5 from rotating. Then, by rotating the locking ring 15, the locking ring 15 is brought close to the abutting plate 14, pushing the two abutting plates 12 closer to each other, so that the abutting plates 12 push the connecting plate 7, and the other end of the connecting plate 7 abuts against the operating box 3 to prevent the connecting plate 7 from rotating on the connecting rod 8, thus fixing the nozzle 4 and allowing the nozzle 4 to spray at different angles. This avoids the problem of insufficient paint adhesion and uneven paint thickness when spraying the lower surface and lower recess of H-beams, which is usually caused by the paint falling and adhering to the sprayed surface due to its own weight.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paint spray gun comprising a spray gun body (1) provided with an adjustment assembly for adjusting the paint spray angle, characterized in that: The adjusting assembly includes a hose (2) detachably mounted at the paint spraying end of the spray gun body (1), one end of the hose (2) is fixedly connected with an operating box (3) away from the spray gun body (1), the other side wall of the operating box (3) is provided with a spray head (4), one end of the spray gun body (1) close to the spray head (4) is rotatably connected with a rotating ring (5), the side wall of the rotating ring (5) is fixedly connected with two annular arrays of connecting pipes (6), the connecting pipes (6) are all sleeved with connecting plates (7), the side walls of both ends of the connecting plates (7) are fixedly connected with connecting rods (8), one end of the connecting plates (7) away from the connecting pipes (6) is respectively sleeved on the connecting rods (8), the connecting pipes (6) are provided with first locking members for preventing the rotating ring (5) and the connecting plates (7) from rotating, and the connecting rods (8) are provided with second locking members for preventing the connecting plates (7) from rotating.

2. A paint spray gun according to claim 1, characterised in that: The first locking members include two screw rods (23) arranged on one side of the connecting pipe (6) respectively, one end of the screw rod (23) is fixedly connected with a fixed disc (9), the other end of the screw rod (23) penetrates through the connecting pipe (6) and is threadedly connected with the rotating ring (5), one end of the screw rod (23) close to the fixed disc (9) is sleeved with an abutting ring (10), a plurality of annular arrays of springs (11) are fixedly connected between the abutting ring (10) and the fixed disc (9).

3. A paint spray gun according to claim 2, wherein: The second locking members include two abutting plates (12) sleeved on the connecting rods (8) respectively, a locking rod (13) is arranged between the two abutting plates (12), the two ends of the locking rod (13) penetrate through the abutting plates (12) respectively, one end of the locking rod (13) is fixedly connected with an abutting disc (14), and the other end of the locking rod (13) is threadedly connected with a locking ring (15).

4. A paint spray gun according to claim 3, wherein: The spring (11) is provided with a positioning rod (16) therein, one end of the positioning rod (16) is fixedly connected with the abutting ring (10), and the other end of the positioning rod (16) penetrates through the fixed disc (9).

5. A paint spray gun according to claim 4, wherein: The top end of the operating box (3) is fixedly connected with a fixed block (17) sleeved on the locking rod (13).

6. A paint spray gun according to claim 5, wherein: The side wall of the locking rod (13) is provided with a limiting groove (18), a sliding block (19) is slidably connected in the limiting groove (18), and one end of the sliding block (19) away from the limiting groove (18) is fixedly connected with the fixed block (17).

7. A paint spray gun according to claim 6, wherein: The side walls of both ends of the connecting plate (7) are fixedly connected with rubber pads (20).

8. A paint spray gun according to claim 7, wherein: The side walls of both sides of the operating box (3) are fixedly connected with guide rods (21), one end of the guide rod (21) away from the operating box (3) penetrates through the abutting plate (12) and is fixedly connected with a limiting block (22) respectively.

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