Spraying device for advertising board processing

Abstract

The utility model relates to the technical field of billboard processing, in particular to a spraying device for billboard processing, which comprises a gun body, a wrench is rotatably connected onto the surface of the gun body, a limit rod mounting seat is fixed onto the surface of the gun body, a limit rod mounting hole is arranged on the surface of the limit rod mounting seat, a limit hole is arranged on the surface of the wrench, and the limit rod mounting hole is communicated with the limit hole. One end of a limiting rod is movably inserted into the limiting rod mounting hole, the other end of the limiting rod is movably inserted into the limiting hole, and a locking mechanism is arranged between the limiting rod mounting hole and the limiting rod; the spraying device has the beneficial effects that when the spraying device does not need to be used, one end of a limiting rod is inserted into a limiting hole, and the other end of the limiting rod stays in a limiting rod mounting hole formed in the surface of a limiting rod mounting seat, so that a wrench cannot continue to rotate on the surface of a gun body, and paint cannot be sprayed out; therefore, the situation that the paint is sprayed out accidentally due to the fact that the wrench is touched by mistake is prevented.

Description

Technical Field

[0001] This utility model relates to the field of billboard processing, specifically a spraying device for billboard processing. Background Technology

[0002] In the manufacturing process of billboards, paint spraying is a very important task. Paint spraying can prevent the billboard material from rusting, extend the service life of the billboard, and make the billboard more beautiful. Billboard spraying can usually be done with spray guns, paint sprayers, and outdoor large sprayers. Among them, spray guns are widely used because they are simple to operate and carry, can quickly complete the spraying work, and can adjust the thickness and range of the spray as needed.

[0003] In the prior art, patent application CN202421178528.3 discloses a spray gun, including a gun body, a wrench at the front end of the gun body, a large cover at the lower end of the gun body, a water inlet at the lower end of the gun body, a water outlet at the front of the upper end, and a connection port at the front of the lower end. A water outlet chamber is formed inside the gun body. A compressed air assembly is connected to the connection port and is connected to the wrench. A water outlet assembly is provided at the water outlet. A cartridge holder is snapped onto the upper part of the large cover, and the upper end of the cartridge holder is inserted into the water outlet chamber of the gun body and seals the water inlet. A through hole communicating with the water outlet chamber is formed on the cartridge holder. A ball is provided on the upper part of the cartridge holder and is movably disposed in the water outlet chamber and can seal the through hole. Both the cartridge holder and the ball are made of PP material. This invention, by setting up a ball and a cartridge holder, creates a pressure difference inside and outside the compressed air assembly. Water then pushes the ball away from the cartridge holder and into the gun body, resulting in a stronger spray burst and less residue. Furthermore, the cartridge holder and the cartridge block, made of PP material, are suitable for liquids with a pH of 11.

[0004] However, existing spray guns lack a mechanism to limit the wrench when not in use, making them prone to accidental activation during handling and storage, resulting in paint being sprayed out unintentionally. This not only wastes paint but may also spray into people's eyes, causing injury. Utility Model Content

[0005] The purpose of this invention is to provide a spraying device for billboard processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for billboard processing, comprising: a gun body, a wrench rotatably connected to the surface of the gun body, a limit rod mounting seat fixed on the surface of the gun body, a limit rod mounting hole formed on the surface of the limit rod mounting seat, a limit hole formed on the surface of the wrench, one end of a limit rod being movably inserted into the limit rod mounting hole, the other end of the limit rod being movably inserted into the limit hole, and a locking mechanism being provided between the limit rod mounting hole and the limit rod.

[0007] Preferably, both the limiting hole and the limiting rod mounting hole are rectangular holes, and the limiting rod has a rectangular rod structure.

[0008] Preferably, the locking mechanism includes a locking hole, a pin groove, and a pin. The locking hole is formed on the surface of the limiting rod, the pin groove is formed on the inner wall of the groove of the mounting hole of the limiting rod, one end of the pin is movably inserted into the pin groove, and the other end of the pin is movably inserted into the locking hole.

[0009] Preferably, one end of the pin is fixed with a spring, and the other end of the spring is fixed to the inner wall of the pin groove.

[0010] Preferably, a pull rod is movably inserted into the surface of the limiting rod mounting base, one end of the pull rod extends into the pin groove and is fixed to the surface of the pin, and the other end of the pull rod is fixed with a pull block.

[0011] Preferably, a first fixing plate and a second fixing plate are sleeved and fixed on the surface of the limiting rod, and the first fixing plate and the second fixing plate are respectively disposed at both ends of the mounting hole of the limiting rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The spraying device for billboard processing proposed in this utility model allows for the following functionality: When the spraying device is not in use, one end of the limiting rod is inserted into the limiting hole, while the other end remains in the limiting rod mounting hole on the surface of the limiting rod mounting base. This prevents the wrench from rotating further on the surface of the spray gun, thus preventing paint from being sprayed out accidentally. Simultaneously, when the spraying device is needed, the limiting rod is pulled upwards to disengage from the limiting hole. A locking mechanism then locks the position of the limiting rod in the mounting hole, preventing the limiting rod from interfering with the normal operation of the spraying device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Gun body; 2. Wrench; 3. Limit rod mounting base; 4. Limit hole; 5. Limit rod mounting hole; 6. Limit rod; 7. Locking hole; 8. Pin slot; 9. Pull rod; 10. Spring; 11. Pull block; 12. First fixing plate; 13. Second fixing plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1: Please refer to Figures 1-3 This utility model provides a technical solution: a spraying device for billboard processing, comprising: a gun body 1, a wrench 2 rotatably connected to the surface of the gun body 1, a limit rod mounting seat 3 fixed on the surface of the gun body 1, a limit rod mounting hole 5 formed on the surface of the limit rod mounting seat 3, a limit hole 4 formed on the surface of the wrench 2, one end of a limit rod 6 movably inserted into the limit rod mounting hole 5, the other end of the limit rod 6 movably inserted into the limit hole 4, a locking mechanism provided between the limit rod mounting hole 5 and the limit rod 6, both the limit hole 4 and the limit rod mounting hole 5 being rectangular holes, and the limit rod 6 having a rectangular rod structure.

[0020] In actual use, when the spraying device is not needed, one end of the limiting rod 6 is inserted into the limiting hole 4, and the other end of the limiting rod 6 is placed in the limiting rod mounting hole 5 on the surface of the limiting rod mounting base 3. This prevents the wrench 2 from rotating on the surface of the gun body 1 and thus prevents paint from being sprayed out. This prevents the wrench 2 from being accidentally touched and causing paint to be sprayed out. At the same time, when the spraying device needs to be used for spraying, the limiting rod 6 is pulled upward to remove it from the limiting hole 4. The locking mechanism locks the position of the limiting rod 6 in the limiting rod mounting hole 5, which can prevent the limiting rod 6 from affecting the normal use of the spraying device.

[0021] Example 2: Based on Example 1, in order to control the state of the locking device, the locking mechanism includes: a locking hole 7, a pin groove 8, and a pin 9. The locking hole 7 is opened on the surface of the limiting rod 6, the pin groove 8 is opened on the inner wall of the groove of the limiting rod mounting hole 5, one end of the pin 9 is movably inserted into the pin groove 8, and the other end of the pin 9 is movably inserted into the locking hole 7. A spring 11 is fixed to one end of the pin 9, and the other end of the spring 11 is fixed to the inner wall of the pin groove 8. A pull rod 10 is movably inserted into the surface of the limiting rod mounting base 3. One end of the pull rod 10 extends into the pin groove 8 and is fixed to the surface of the pin 9, and a pull block 12 is fixed to the other end of the pull rod 10.

[0022] When the spraying device is needed, pull the limiting rod 6 to disengage it from the limiting hole 4. After disengagement, the locking hole 7 aligns with the pin groove 8. Once aligned, the compressed spring 11, under its own elasticity, pushes one end of the pin 9 into the locking hole 7, while the other end of the pin 9 remains in the pin groove 8. This locks the position of the limiting rod 6 in the limiting rod mounting hole 5, allowing the spraying device to be used normally. When the spraying device is not needed, pull the pull block 12 away from the limiting rod mounting base 3. The pull block 12 drives the pin 9 to move through the pull rod 10, disengaging the pin 9 from the locking hole 7 and releasing the lock. Then, push the limiting rod 6 to re-insert one end of the limiting rod 6 into the limiting hole 4.

[0023] Example 3: Based on Example 2, in order to prevent the limiting rod 6 from falling out of the limiting rod mounting hole 5, a first fixing plate 13 and a second fixing plate 14 are sleeved and fixed on the surface of the limiting rod 6. The first fixing plate 13 and the second fixing plate 14 are respectively set at both ends of the limiting rod mounting hole 5.

[0024] The first fixing plate 13 and the second fixing plate 14, which are fixed on the surface of the limiting rod 6, are respectively set at both ends of the limiting rod mounting hole 5, thereby restricting the movement of the limiting rod 6 and preventing the limiting rod 6 from falling out of the limiting rod mounting hole 5.

[0025] In actual use, when the spraying device is not needed, one end of the limiting rod 6 is inserted into the limiting hole 4, and the other end of the limiting rod 6 remains in the limiting rod mounting hole 5 on the surface of the limiting rod mounting base 3. This prevents the wrench 2 from continuing to rotate on the surface of the gun body 1, thus preventing paint from being sprayed out and preventing accidental contact with the wrench 2 that could lead to accidental paint spraying. Simultaneously, when the spraying device is needed, the limiting rod 6 is pulled upwards to disengage it from the limiting hole 4. The locking mechanism locks the position of the limiting rod 6 in the limiting rod mounting hole 5, preventing the limiting rod 6 from affecting the normal use of the spraying device. When the spraying device is needed again, the limiting rod 6 is pulled out of the limiting hole 4. After disengagement, the locking hole 7 and the pin... After the slots 8 are aligned, the compressed spring 11 pushes one end of the pin 9 into the locking hole 7 under its own elasticity, while the other end of the pin 9 remains in the pin slot 8, thereby locking the position of the limit rod 6 in the limit rod mounting hole 5, allowing the spraying device to be used normally. When the spraying device is not needed, the pull block 12 is pulled away from the limit rod mounting seat 3. The pull block 12 drives the pin 9 to move through the pull rod 10, and the pin 9 is disengaged from the locking hole 7, thus releasing the lock. Then, the limit rod 6 is pushed so that one end of the limit rod 6 is inserted back into the limit hole 4. The first fixing plate 13 and the second fixing plate 14, which are fixed on the surface of the limit rod 6, are respectively set at both ends of the limit rod mounting hole 5, thereby restricting the movement of the limit rod 6 and preventing the limit rod 6 from falling out of the limit rod mounting hole 5.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray device for billboard processing, comprising: A gun body (1) is rotatably connected to a wrench (2) on its surface. The gun body (1) is characterized by having a limit rod mounting seat (3) fixed on its surface, a limit rod mounting hole (5) on its surface, a limit hole (4) on its surface, one end of a limit rod (6) being movably inserted into the limit rod mounting hole (5), the other end of the limit rod (6) being movably inserted into the limit hole (4), and a locking mechanism being provided between the limit rod mounting hole (5) and the limit rod (6).

2. A spraying device for billboard processing according to claim 1, characterized in that: The limiting hole (4) and the limiting rod mounting hole (5) are both rectangular holes, and the limiting rod (6) has a rectangular rod structure.

3. The spraying device for billboard processing according to claim 1, characterized in that: The locking mechanism includes a locking hole (7), a pin groove (8), and a pin (9). The locking hole (7) is opened on the surface of the limiting rod (6), the pin groove (8) is opened on the inner wall of the groove of the limiting rod mounting hole (5), one end of the pin (9) is movably inserted into the pin groove (8), and the other end of the pin (9) is movably inserted into the locking hole (7).

4. A spraying device for billboard processing according to claim 3, characterized in that: One end of the pin (9) is fixed with a spring (11), and the other end of the spring (11) is fixed on the inner wall of the pin groove (8).

5. A spraying device for billboard processing according to claim 3, characterized in that: A pull rod (10) is movably inserted into the surface of the limiting rod mounting base (3). One end of the pull rod (10) extends into the pin groove (8) and is fixed to the surface of the pin (9). The other end of the pull rod (10) is fixed with a pull block (12).

6. A spraying device for billboard processing according to claim 1, characterized in that: The limiting rod (6) is fitted with a first fixing plate (13) and a second fixing plate (14), which are respectively set at both ends of the limiting rod mounting hole (5).

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