High-pressure pneumatic spray gun

Abstract

The utility model relates to the technical field of pneumatic spray guns, in particular to a high-pressure pneumatic spray gun which comprises a spray gun body, a paint bucket assembly, a cleaning assembly and a control assembly, and the paint bucket assembly is installed on the upper side of the spray gun body and comprises a paint bucket body in threaded connection with the upper side of the spray gun body. A visual window is fixedly connected in a notch in the front side of the paint bucket body, and a liquid inlet valve is fixedly connected in a liquid inlet in the upper side of the paint bucket body. According to the paint bucket, through the arrangement of the liquid inlet valve, the liquid discharge valve and the cleaning scraper, the inner wall of the paint bucket body can be cleaned through the rotatable cleaning scraper; clear water is added into the paint bucket body through the liquid inlet valve, the paint bucket body and the cleaning scraping plate are cleaned through the clear water, then the spray gun body is cleaned through the clear water added for the second time, the paint bucket body and the spray gun body can be effectively cleaned through the device, operation is easy, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic spray gun technology, specifically a high-pressure pneumatic spray gun. Background Technology

[0002] High-pressure pneumatic spray guns are a type of high-efficiency spraying equipment widely used in industrial and construction fields. Their working principle is to use compressed air provided by an air pump to push the paint in the paint bucket to the nozzle, and to achieve uniform spraying of paint by opening and closing the controllable nozzle.

[0003] Some existing high-pressure pneumatic spray guns require emptying the remaining paint from the paint bucket and cleaning the paint bucket and spray gun after use. Due to the strong viscosity of the paint and the small opening of the paint bucket, the cleaning work is troublesome, time-consuming and labor-intensive. Therefore, a high-pressure pneumatic spray gun is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure pneumatic spray gun to solve the problem that some existing high-pressure pneumatic spray guns require emptying the remaining paint in the paint bucket and cleaning the paint bucket and spray gun after use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-pressure pneumatic spray gun includes a spray gun body, a paint bucket assembly, a cleaning assembly, and a control assembly. The paint bucket assembly is mounted on the upper side of the spray gun body. The paint bucket assembly includes a paint bucket body threadedly connected to the upper side of the spray gun body. A viewing window is fixedly connected to the front slot of the paint bucket body. An inlet valve is fixedly connected to the upper inlet of the paint bucket body. A connector is fixedly connected to the upper inlet of the paint bucket body. A drain valve is fixedly connected to the left outlet of the paint bucket body. A drain pipe is fixedly connected to the left side of the drain valve. A cleaning assembly is located in the middle of the paint bucket assembly, passing through it. The cleaning assembly includes a drive motor fixedly connected to the upper side of the paint bucket body. A transmission block passing through the upper side wall of the paint bucket body is fixedly connected to the main shaft of the drive motor. A cleaning scraper is fixedly connected to the lower side of the transmission block.

[0007] Preferably, a control component is provided on the upper side of the paint bucket assembly. The control component includes a small battery fixedly connected to the upper side of the paint bucket body. A controller is fixedly connected to the upper side of the small battery. The controller is electrically connected to the inlet valve, the outlet valve, and the small battery, respectively.

[0008] Preferably, the viewing window is a transparent rectangular plate, and the rear side of the viewing window is a curved surface with the same curvature as the inner wall curvature of the paint bucket body.

[0009] Preferably, the upper half of the connector is provided with an internal thread, the lower half of the connector is fixedly connected to the outside of the inlet valve, and the drain pipe is a circular rubber hose.

[0010] Preferably, the transmission block and the paint bucket body are rotatably connected, the cleaning scraper has a rectangular frame structure, and the outer side of the cleaning scraper is in contact with the inner wall of the paint bucket body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the device, with its inlet valve, outlet valve, and cleaning scraper, can clean the inner wall of the paint bucket body using the rotatable cleaning scraper. Water is added to the paint bucket body through the inlet valve, and the water is used to clean the paint bucket body and the cleaning scraper. A second addition of water is then used to clean the spray gun body. This device effectively cleans both the paint bucket body and the spray gun body, and is simple to operate, saving time and effort. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the paint bucket assembly structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the paint bucket assembly structure of this utility model;

[0016] Figure 4 This is a cross-sectional view of the cleaning scraper installation structure of this utility model.

[0017] In the diagram: 1. Spray gun body; 2. Paint bucket assembly; 21. Paint bucket body; 22. Viewing window; 23. Inlet valve; 24. Connector; 25. Drain valve; 26. Drain pipe; 3. Cleaning assembly; 31. Drive motor; 32. Transmission block; 33. Cleaning scraper; 4. Control assembly; 41. Small battery; 42. Controller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0020] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution:

[0022] A high-pressure pneumatic spray gun includes a spray gun body 1, a paint bucket assembly 2, a cleaning assembly 3, and a control assembly 4. The paint bucket assembly 2 is mounted on the upper side of the spray gun body 1. The paint bucket assembly 2 includes a paint bucket body 21 threadedly connected to the upper side of the spray gun body 1. A viewing window 22 is fixedly connected to the front groove of the paint bucket body 21. An inlet valve 23 is fixedly connected to the upper liquid inlet of the paint bucket body 21. A connector 24 is fixedly connected to the upper liquid inlet of the paint bucket body 21. A drain valve 25 is fixedly connected to the left outlet of the paint bucket body 21. A drain pipe 26 is fixedly connected to the left side of the drain valve 25. A cleaning assembly 3 is provided in the middle of the paint bucket assembly 2, passing through the paint bucket assembly 2. The cleaning assembly 3 includes a drive motor 31 fixedly connected to the upper side of the paint bucket body 21. A transmission block 32 passing through the upper side wall of the paint bucket body 21 is fixedly connected to the main shaft of the drive motor 31. A cleaning scraper 33 is fixedly connected to the lower side of the transmission block 32.

[0023] A control component 4 is provided on the upper side of the paint bucket assembly 2. The control component 4 includes a small battery 41 fixedly connected to the upper side of the paint bucket body 21. A controller 42 is fixedly connected to the upper side of the small battery 41. The controller 42 is electrically connected to the inlet valve 23, the outlet valve 25, and the small battery 41. It can be powered by the small battery 41, and the controller 42 can adjust the operating status of the inlet valve 23 and the outlet valve 25 respectively. The viewing window 22 is a transparent rectangular plate. The rear side of the viewing window 22 is a curved surface with the same curvature as the inner wall of the paint bucket body 21. The viewing window 22 allows observation of the water level inside the paint bucket body 21, facilitating control of the water addition. The upper half of the connector 24 has an internal thread, and the lower half of the connector 24 is fixedly connected to the outside of the inlet valve 23. The drain pipe 26 is a circular rubber hose, through which the cleaned water is discharged. The transmission block 32 is rotatably connected to the paint bucket body 21. The cleaning scraper 33 has a rectangular frame structure, with the outer side of the cleaning scraper 33 fitting against the inner wall of the paint bucket body 21. The cleaning scraper 33 can be used to clean the inner wall of the paint bucket body 21 and the rear side of the viewing window 22.

[0024] Workflow: Before use, remove the paint bucket body 21 from the spray gun body 1, add a certain amount of paint to the paint bucket body 21, then reinstall the paint bucket body 21 onto the spray gun body 1. Connect the spray gun body 1 to the air pump and adjust the spray gun body 1. The device is then ready to use. This device is powered by a rechargeable small battery 41. The controller 42 of this device is electrically connected to the inlet valve 23, the outlet valve 25, and the small battery 41. Manually operating the controller 42 can adjust the operating status of the inlet valve 23 and the outlet valve 25 respectively. All of the above are existing technologies. This device needs to be used in conjunction with an air pump. When using this device, the operator turns on the air pump, holds the spray gun body 1, and presses the handle of the spray gun body 1. The operator manually opens the nozzle of the spray gun body 1, allowing spraying to proceed. After spraying, the operator turns off the air pump, opens the drain valve 25 via controller 42, and starts the drive motor 31. The remaining paint in the paint bucket body 21 is drained through the drain pipe 26. The drive motor 31 rotates the transmission block 32, which in turn rotates the cleaning scraper 33. The cleaning scraper 33 cleans the inner wall of the paint bucket body 21 and the rear side of the viewing window 22, causing the paint adhering to these surfaces to fall to the bottom of the paint bucket body 21 and flow out. The operator then closes the drain valve 25 and drive motor 31, and opens the inlet valve 23. By installing the water supply pipe onto connector 24, clean water can be injected into the paint bucket body 21. The water level in the paint bucket body 21 can be observed through the viewing window 22 for easy control of the water addition. After adding a certain amount of clean water, the operator closes the inlet valve 23 and restarts the drive motor 31. The rotating cleaning scraper 33 can self-clean using clean water, while simultaneously agitating the water to create a swirling flow, thus cleaning the inner wall of the paint bucket body 21. After a period of time, the operator closes the drive motor 31 via controller 42 and reopens the drain valve 25, draining the cleaned water through the drain pipe 26. The drained water can rinse the inner wall of the drain pipe 26, removing any residue adhering to the drain valve 25 and drain pipe 26. After the paint is washed away and the water in the paint bucket 21 is drained, the worker closes the drain valve 25 and opens the inlet valve 23 to introduce fresh water into the paint bucket 21. Then, the air pump is turned on, and the handle of the spray gun body 1 is pressed again to spray out water, which can flush the internal pipes of the spray gun body 1. This device can clean the inner wall of the paint bucket 21 through the rotatable cleaning scraper 33 and add water into the paint bucket 21 through the inlet valve 23. The water cleans the paint bucket 21 and the cleaning scraper 33. Then, the spray gun body 1 is cleaned with the second addition of water. This device can effectively clean the paint bucket 21 and the spray gun body 1, and it is simple to operate, saving time and effort.

[0025] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[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 high-pressure pneumatic spray gun, comprising a spray gun body (1), a paint bucket assembly (2), a cleaning assembly (3), and a control assembly (4), characterized in that: A paint bucket assembly (2) is mounted on the upper side of the spray gun body (1). The paint bucket assembly (2) includes a paint bucket body (21) threadedly connected to the upper side of the spray gun body (1). A viewing window (22) is fixedly connected to the front slot of the paint bucket body (21). An inlet valve (23) is fixedly connected to the upper liquid inlet of the paint bucket body (21). A connector (24) is fixedly connected to the upper liquid inlet of the paint bucket body (21). A connector (24) is fixedly connected to the left liquid outlet of the paint bucket body (21). A drain valve (25) is provided, and a drain pipe (26) is fixedly connected to the left side of the drain valve (25). A cleaning component (3) is provided in the middle of the paint bucket assembly (2) and passes through the paint bucket assembly (2). The cleaning component (3) includes a drive motor (31) fixedly connected to the upper side of the paint bucket body (21). The main shaft of the drive motor (31) is fixedly connected to a transmission block (32) that passes through the upper side wall of the paint bucket body (21). A cleaning scraper (33) is fixedly connected to the lower side of the transmission block (32).

2. The high-pressure pneumatic spray gun according to claim 1, characterized in that: The upper side of the paint bucket assembly (2) is provided with a control component (4). The control component (4) includes a small battery (41) fixedly connected to the upper side of the paint bucket body (21). A controller (42) is fixedly connected to the upper side of the small battery (41). The controller (42) is electrically connected to the inlet valve (23), the outlet valve (25), and the small battery (41).

3. A high-pressure pneumatic spray gun according to claim 1, characterized in that: The viewing window (22) is a transparent rectangular plate, and the rear side of the viewing window (22) is a curved surface with the same curvature as the inner wall curvature of the paint bucket body (21).

4. A high-pressure pneumatic spray gun according to claim 1, characterized in that: The upper half of the connector (24) is provided with an internal thread, the lower half of the connector (24) is fixedly connected to the outside of the inlet valve (23), and the drain pipe (26) is a circular rubber hose.

5. A high-pressure pneumatic spray gun according to claim 1, characterized in that: The transmission block (32) and the paint bucket body (21) are rotatably connected. The cleaning scraper (33) has a rectangular frame structure. The outer side of the cleaning scraper (33) is attached to the inner wall of the paint bucket body (21).

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