Vacuum one-way valve spray gun

Abstract

The utility model belongs to the technical field of spray guns, and particularly discloses a vacuum one-way valve spray gun. The spray gun comprises a gun head and a base and is characterized in that an exhaust valve is arranged between the gun head and the base, a nozzle is arranged on one side of the gun head, an adjusting assembly is arranged on one side of the nozzle and comprises an adjusting block, and a fixing head is arranged on one side of the adjusting block. The relative angle between the fixed head and the nozzle can be quickly changed only by easily shifting the adjusting block, and accurate regulation and control on the spraying angle are realized, so that the workload of an operator is greatly reduced, the fatigue feeling caused by keeping an uncomfortable posture for a long time is reduced, the working efficiency is improved, and the labor intensity of the operator is reduced. And the surface of an object can be evenly covered in various environments, spraying dead angles are effectively avoided, the spraying effect and quality are remarkably improved, meanwhile, coating waste caused by the poor angle is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of spray gun technology, and more specifically, to vacuum check valve spray guns. Background Technology

[0002] A spray gun is a tool that uses compressed air to atomize and spray paint, used in coating and other fields. It mainly consists of a gun body, a nozzle, an air passage, and a paint supply system. The gun body is easy to hold and has a trigger control; the nozzle, including the nozzle and air cap, determines the paint spraying and atomization effect; the air passage system supplies compressed air and can adjust the flow rate and pressure; the paint supply system stores and transports paint, using gravity, siphon, or pressure methods.

[0003] Existing spray gun heads are difficult to adjust the nozzle spray direction flexibly according to different environments during actual use. This forces users to frequently adjust the angle of the spray gun they hold. Maintaining an uncomfortable holding angle for a long time not only puts a lot of pressure on the hands and arms, causing fatigue and reducing work efficiency, but also increases the difficulty of operation and leads to frequent paint waste. At the same time, poor spraying angles prevent the spray gun from evenly covering the surface of the object, easily creating spraying dead spots, which affects the spraying effect and quality. Utility Model Content

[0004] To address the aforementioned issues, this application provides a vacuum check valve spray gun.

[0005] The vacuum check valve spray gun provided in this application adopts the following technical solution:

[0006] A vacuum one-way valve spray gun, comprising a gun head and a base, characterized in that an exhaust valve is provided between the gun head and the base, a nozzle is provided on one side of the gun head, and an adjustment component is provided on one side of the nozzle;

[0007] The adjustment assembly includes an adjustment block, and a fixed head is provided on one side of the adjustment block. The adjustment block is used to drive the fixed head to adjust the spray angle.

[0008] Furthermore, a flexible hose is provided on one side of the nozzle, which is connected to the nozzle. An opening is provided inside the adjusting block, and one end of the flexible hose passes through the opening and is connected to the fixed head.

[0009] Furthermore, two spheres are provided on one side of the nozzle, and two telescopic rods are provided on the other side of the nozzle, with one end of each telescopic rod being connected to the corresponding sphere.

[0010] Furthermore, two grooves are provided on one side of the adjusting block, and a universal ball is provided at one end of each telescopic rod, with each groove matching the corresponding universal ball.

[0011] The above technical solution enables precise control of the spray angle.

[0012] Furthermore, an exhaust port is provided on one side of the exhaust valve, and a one-way exhaust pad is provided on the inner wall of the exhaust port. A waterproof and breathable membrane is provided inside the exhaust port, and the waterproof and breathable membrane is located at the bottom of the one-way exhaust pad.

[0013] Furthermore, the waterproof and breathable membrane is made of polytetrafluoroethylene.

[0014] The above technical solution enables timely venting when the pressure inside the spray gun container is greater than that outside, ensuring the safe use and stability of the spray gun.

[0015] Furthermore, a sealing ring is provided on the outer wall of the exhaust valve.

[0016] Furthermore, the sealing ring has a groove inside, and the outer wall of the exhaust valve has a retaining ring, with the groove and the retaining ring engaging.

[0017] The above technical solution effectively prevents external impurities and dust from entering the exhaust valve.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] (1) This utility model allows operators to quickly change the relative angle between the fixed head and the nozzle by simply moving the adjustment block, without having to frequently adjust their body posture or the angle of the spray gun. This achieves precise control of the spray angle, which not only greatly reduces the workload of operators and reduces fatigue caused by maintaining an uncomfortable posture for a long time, but also improves work efficiency. It also ensures that the surface of the object can be evenly covered in various environments, effectively avoids dead corners in spraying, significantly improves the spraying effect and quality, and reduces paint waste caused by poor angle, thus reducing production costs.

[0020] (2) This utility model can release gas in time when the pressure inside the spray gun container is greater than that outside by using a one-way venting pad, preventing the container from bulging, cracking and leaking, thus ensuring the safe use and stability of the spray gun. The waterproof and breathable membrane made of polytetrafluoroethylene at the bottom of the one-way venting pad allows gas to be released while effectively blocking external moisture from entering the spray gun container due to the excellent waterproof properties of polytetrafluoroethylene. This prevents the internal coating from getting damp and deteriorating, affecting the spraying effect, ensuring the long-term stable operation of the venting valve and extending the overall service life of the spray gun. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of the adjusting block of this utility model;

[0023] Figure 3 For the present utility model Figure 2Enlarged view of the structure at point A;

[0024] Figure 4 This is a schematic diagram of the overall structure of the exhaust valve and sealing ring of this utility model;

[0025] Figure 5 This is a cross-sectional view of the overall structure of the exhaust valve of this utility model.

[0026] Explanation of reference numerals in the attached diagram: 1. Gun head; 2. Base; 3. Exhaust valve; 4. Nozzle; 5. Hose; 6. Adjusting block; 7. Fixing head; 8. Universal ball; 9. Groove; 10. Telescopic rod; 11. Exhaust hole; 12. One-way exhaust pad; 13. Waterproof and breathable membrane; 14. Sealing ring; 15. Slot; 16. Snap ring; 17. Through port; 18. Ball. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] Reference Figures 1-5 A vacuum one-way valve spray gun includes a gun head 1 and a base 2. An exhaust valve 3 is provided between the gun head 1 and the base 2. A nozzle 4 is provided on one side of the gun head 1. An adjustment component is provided on one side of the nozzle 4.

[0029] The adjustment assembly includes an adjustment block 6, and a fixing head 7 is provided on one side of the adjustment block 6. The adjustment block 6 is used to drive the fixing head 7 to adjust the spray angle.

[0030] Reference Figures 1-5 A flexible hose 5 is provided on one side of the nozzle 4, and the flexible hose 5 is connected to the nozzle 4. An opening 17 is provided inside the adjusting block 6, and one end of the flexible hose 5 passes through the opening 17 and is connected to the fixed head 7. Two balls 18 are provided on one side of the nozzle 4, and two telescopic rods 10 are provided on one side of the nozzle 4. One end of each telescopic rod 10 is respectively connected to the corresponding ball 18. Two grooves 9 are provided on one side of the adjusting block 6, and a universal ball 8 is provided at one end of each telescopic rod 10. Each groove 9 is respectively matched with the corresponding universal ball 8.

[0031] The spray angle of the spray gun can be adjusted according to environmental requirements by adjusting the components. The specific operation is as follows: First, move the adjusting block 6. The offset of the adjusting block 6 will drive the fixed head 7 to change its angle. Since the adjusting block 6 has an opening 17, one end of the hose 5 connected to the nozzle 4 passes through the opening 17 and connects to the fixed head 7. Therefore, the offset of the adjusting block 6 will change the relative angle between the fixed head 7 and the nozzle 4. At the same time, the universal ball 8 matched in the groove 9 on one side of the adjusting block 6 is connected to one end of the telescopic rod 10. The other end of the telescopic rod 10 is sleeved on the ball 18. When the adjusting block 6 moves, the universal ball 8 can rotate flexibly in the groove 9. The telescopic rod 10 can also change its position accordingly, thereby assisting the fixed head 7 to achieve multi-angle adjustment to adapt to the spray angle requirements of different environments.

[0032] By adjusting the components, operators no longer need to frequently adjust their body posture or the angle of their hand holding the spray gun. They can simply turn the adjustment block 6 to quickly change the relative angle between the fixed head 7 and the nozzle 4, achieving precise control of the spray angle. This not only greatly reduces the workload of operators and reduces fatigue caused by maintaining an uncomfortable posture for a long time, thus improving work efficiency, but also ensures uniform coverage of the object surface in various environments, effectively avoiding spray dead corners, significantly improving the spraying effect and quality, while reducing paint waste caused by poor angles and lowering production costs.

[0033] Reference Figure 4 and Figure 5 An exhaust port 11 is provided on one side of the exhaust valve 3. A one-way exhaust pad 12 is provided on the inner wall of the exhaust port 11. A waterproof and breathable membrane 13 is provided inside the exhaust port 11. The waterproof and breathable membrane 13 is located at the bottom of the one-way exhaust pad 12. The waterproof and breathable membrane 13 is made of polytetrafluoroethylene.

[0034] The one-way venting pad 12 (a prior art technology, not shown in the structural diagram) allows for timely venting when the pressure inside the spray gun container exceeds that of the outside, preventing bulging, cracking, and leakage of the container, thus ensuring the safe and stable use of the spray gun. The waterproof and breathable membrane 13 made of polytetrafluoroethylene (PTFE) at the bottom of the one-way venting pad 12 allows gas to escape while effectively preventing external moisture from entering the spray gun container due to the excellent waterproof properties of PTFE. This avoids the internal coating from becoming damp and deteriorating, affecting the spraying effect, ensuring the long-term stable operation of the venting valve 3, and extending the overall service life of the spray gun.

[0035] Reference Figure 4 and Figure 5 The outer wall of the exhaust valve 3 is provided with a sealing ring 14, and the inside of the sealing ring 14 is provided with a groove 15. The outer wall of the exhaust valve 3 is provided with a retaining ring 16, and the groove 15 and the retaining ring 16 are engaged.

[0036] The sealing ring 14 effectively prevents external impurities and dust from entering the exhaust valve 3, preventing them from clogging or damaging key components such as the exhaust port 11, one-way exhaust pad 12, and waterproof and breathable membrane 13, thereby ensuring the long-term stable operation of the exhaust valve 3. The tight engagement between the retaining ring 16 and the retaining groove 15 securely fixes the sealing ring 14 to the outer wall of the exhaust valve 3, preventing the sealing ring 14 from shifting or falling off due to vibration or collision during the use of the spray gun, further ensuring the sealing performance of the exhaust valve 3.

[0037] Working principle: When adjusting the spray angle of nozzle 4 using the spray gun, first move the adjusting block 6. The offset of the adjusting block 6 will drive the fixed head 7 to change its angle. Since the adjusting block 6 has an opening 17, one end of the flexible hose 5 connected to the nozzle 4 passes through the opening 17 and connects to the fixed head 7. Therefore, the offset of the adjusting block 6 will change the relative angle between the fixed head 7 and the nozzle 4. At the same time, the universal ball 8 matched in the groove 9 on one side of the adjusting block 6 is connected to one end of the telescopic rod 10, and the other end of the telescopic rod 10 is sleeved on the ball 18. When the adjusting block 6 moves, the universal ball 8 can rotate flexibly in the groove 9, and the telescopic rod 10 can also change its position accordingly. This helps the fixed head 7 to achieve multi-angle adjustment to adapt to the spray angle requirements of different environments.

[0038] 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 vacuum one-way valve spray gun, comprising a nozzle (1) and a base (2), characterized in that, An exhaust valve (3) is provided between the gun head (1) and the base (2), a nozzle (4) is provided on one side of the gun head (1), and an adjustment component is provided on one side of the nozzle (4); The adjustment component includes an adjustment block (6), and a fixing head (7) is provided on one side of the adjustment block (6). The adjustment block (6) is used to drive the fixing head (7) to adjust the spray angle.

2. The vacuum one-way valve spray gun according to claim 1, characterized in that: A flexible hose (5) is provided on one side of the nozzle (4), the flexible hose (5) is connected to the nozzle (4), and an opening (17) is provided inside the adjusting block (6). One end of the flexible hose (5) passes through the opening (17) and is connected to the fixing head (7).

3. The vacuum one-way valve spray gun according to claim 2, characterized in that: Two spheres (18) are provided on one side of the nozzle (4), and two telescopic rods (10) are provided on one side of the nozzle (4). One end of each telescopic rod (10) is connected to the corresponding sphere (18).

4. The vacuum one-way valve spray gun according to claim 3, characterized in that: Two grooves (9) are provided on one side of the adjustment block (6), and one end of each telescopic rod (10) is provided with a universal ball (8), and each groove (9) is matched with the corresponding universal ball (8).

5. The vacuum one-way valve spray gun according to claim 1, characterized in that: An exhaust hole (11) is provided on one side of the exhaust valve (3). A one-way exhaust pad (12) is provided on the inner wall of the exhaust hole (11). A waterproof and breathable membrane (13) is provided inside the exhaust hole (11). The waterproof and breathable membrane (13) is located at the bottom of the one-way exhaust pad (12).

6. The vacuum one-way valve spray gun according to claim 5, characterized in that: The waterproof and breathable membrane (13) is made of polytetrafluoroethylene.

7. The vacuum one-way valve spray gun according to claim 1, characterized in that: The outer wall of the exhaust valve (3) is provided with a sealing ring (14).

8. The vacuum one-way valve spray gun according to claim 7, characterized in that: The sealing ring (14) has a groove (15) inside, and the outer wall of the exhaust valve (3) has a retaining ring (16), and the groove (15) and the retaining ring (16) are engaged.

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