Spray gun washing nozzle structure

By designing a spray gun nozzle structure that connects to the spray gun via a water pipe connector for direct rinsing, the problem of cumbersome spray gun cleaning is solved, achieving convenient cleaning operations and improved sealing, thus enhancing the ease of use of the spray gun.

CN223775159UActive Publication Date: 2026-01-09NINGBO XINYISHENG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423107185.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2026-01-09
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing spray guns require disassembly after use to clean the material channel, which makes the cleaning process cumbersome and affects the performance. In severe cases, it may even damage the gun body.

Method used

Design a spray gun nozzle cleaning structure that connects to the spray gun via a water pipe connector to directly rinse the inside of the gun body without disassembling the gun body. Water is delivered directly through the water pipe for rinsing, and wastewater is discharged through the suction pipe. A sealing ring ensures a tight connection.

Benefits of technology

It achieves convenience and speed in spray gun cleaning operations, reduces maintenance difficulty, ensures sealing, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223775159U_ABST
Patent Text Reader

Abstract

The utility model discloses a nozzle washing structure of a spray gun, and relates to the technical field of spray gun accessories. Comprising a washing nozzle body, the washing nozzle body comprises a washing nozzle threaded end cover, the washing nozzle body is installed on a threaded head of a gun body through the washing nozzle threaded end cover, a water pipe connector is arranged on one side of the washing nozzle threaded end cover and used for being connected with a water pipe to clean the gun body, a protruding ring is arranged on the water pipe connector, and a groove located in one side of the protruding ring is further formed in the water pipe connector. After spraying operation of the gun body, the upper washing nozzle body is directly replaced to be connected with the water pipe, water can be conveyed through the water pipe to directly wash the interior of the gun body and the water suction pipe, waste water generated after washing is discharged through the bottom end of the water suction pipe, the gun body does not need to be disassembled, gun body washing operation is more convenient and faster, later maintenance is facilitated, and use is more convenient. Due to the arrangement of the sealing ring, the sealing performance of the connecting position of the washing nozzle body and the gun body is guaranteed, the use requirement of a user is met, and wide application prospects are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of spray gun accessories technology, specifically a spray gun nozzle cleaning structure. Background Technology

[0002] A spray gun is a device that uses the rapid release of liquid or compressed air as its power source. Spray guns are divided into two types: standard pressure and pressurized. Other types include pressure spray guns, cartridge spray guns, and automatic recovery spray guns.

[0003] After each use, the material channel inside the spray gun needs to be cleaned, otherwise it will cause blockage, affecting the next use. In severe cases, it may even damage the gun and render it unusable. Existing spray gun cleaning methods require disassembling the gun body for cleaning, which is cumbersome, slow, and has unsatisfactory results. Utility Model Content

[0004] This invention provides a spray gun nozzle cleaning structure to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spray gun nozzle cleaning structure, including a nozzle body, the nozzle body including a nozzle threaded end cap, the nozzle body being installed on the threaded head of the gun body via the nozzle threaded end cap, and a water pipe connector being provided on one side of the nozzle threaded end cap for connecting a water pipe to clean the gun body.

[0006] Furthermore, the water pipe connector is provided with a raised ring.

[0007] Furthermore, the water pipe connector is also provided with a groove located on one side of the convex ring.

[0008] Furthermore, the outer ring of the end of the water pipe connector away from the threaded end cap of the rinsing nozzle is provided with an arc-shaped guide portion.

[0009] Furthermore, a sealing ring is provided inside the threaded end cap of the rinsing nozzle.

[0010] Furthermore, a limit protrusion is provided on the side of the rinsing nozzle threaded end cap away from the water pipe connector.

[0011] Furthermore, a main unit is provided at the end of the gun body away from the threaded head, and a fixing block matching the limiting protrusion is also provided on the threaded head of the gun body.

[0012] Furthermore, the gun body has a delivery chamber inside, and an adjustment rod is installed inside the delivery chamber.

[0013] Furthermore, a material barrel is threadedly connected to the bottom of the gun body, and a suction pipe is provided inside the gun body, with one end connected to the conveying chamber and the other end extending into the material barrel.

[0014] Compared with the prior art, the present invention provides a spray gun nozzle cleaning structure, which has the following beneficial effects:

[0015] This spray gun nozzle structure allows for direct replacement of the nozzle body with a water pipe after spraying the gun. Water is then delivered through the pipe to directly rinse the inside of the gun and the suction pipe. The wastewater is discharged through the bottom of the suction pipe. This design eliminates the need to disassemble the gun, making cleaning easier and faster, facilitating future maintenance, and enhancing usability. The water pipe connector provides a stable connection, and the sealing ring ensures a tight seal between the nozzle body and the gun body, meeting user needs and demonstrating broad application prospects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the mouthpiece of this utility model;

[0018] Figure 3 This is a side view of the main structure of the rinsing nozzle of this utility model;

[0019] Figure 4 This is a schematic diagram of the nozzle body and the gun body of this utility model in a separated state.

[0020] Figure 5 This is a cross-sectional view of the connection between the mouthpiece body and the gun body of this utility model.

[0021] In the diagram: 1. Nozzle body; 11. Nozzle threaded end cap; 12. Water pipe connector; 13. Raised ring; 14. Groove; 15. Arc guide part; 16. Sealing ring; 17. Limiting protrusion; 2. Gun body; 21. Main unit; 22. Fixing block; 23. Conveying chamber; 24. Adjusting rod; 25. Material bucket; 26. Suction pipe. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model discloses a spray gun nozzle cleaning structure, including a nozzle body 1. The nozzle body 1 includes a nozzle threaded end cap 11. The nozzle body 1 is installed on the threaded head of the gun body 2 through the nozzle threaded end cap 11. A water pipe connector 12 is provided on one side of the nozzle threaded end cap 11 for connecting a water pipe to clean the gun body 2.

[0024] Specifically, the water pipe connector 12 is provided with a convex ring 13 and a groove 14 located on one side of the convex ring 13. The groove 14 is used to fit a rubber ring, which further increases the sealing between the water pipes. The outer ring of the end of the water pipe connector 12 away from the threaded end cap 11 of the rinsing nozzle is provided with an arc guide part 15. The arc guide part 15 makes it easier for the water pipe to fit on the water pipe connector 12. After the water pipe and the water pipe connector 12 are fitted together, the end of the water pipe needs to extend beyond the convex ring 13, which can further increase the connection stability between the water pipe and the water pipe connector 12.

[0025] Specifically, the inside of the threaded end cap 11 of the mouthpiece is provided with a sealing ring 16. When the threaded end cap 11 of the mouthpiece is connected to the threaded head of the gun body 2, the threaded head presses against the sealing ring 16, ensuring the sealing of the connection between the threaded head and the threaded end cap 11 of the mouthpiece.

[0026] Specifically, the nozzle threaded end cap 11 is provided with a limiting protrusion 17 on the side away from the water pipe connector 12, and the gun body 2 is provided with a main unit 21 on the end away from the threaded head. The threaded head of the gun body 2 is also provided with a fixing block 22 that matches the limiting protrusion 17. When the nozzle threaded end cap 11 is rotated into place on the threaded head, the limiting protrusion 17 abuts against the fixing block 22, preventing the nozzle threaded end cap 11 from continuing to rotate and preventing excessive rotation of the nozzle threaded end cap 11. It is also more convenient to disassemble. The main unit 21, the gun body 2, and the material tank 25 are the main components of the spray gun. The spray gun can be used to spray liquids such as paint and disinfectant. It is a relatively mature product on the market.

[0027] Specifically, the gun body 2 has a conveying chamber 23 inside, and an adjusting rod 24 inside the conveying chamber 23. A material bucket 25 is threaded onto the bottom of the gun body 2. The gun body 2 has a suction pipe 26 inside, with one end connected to the conveying chamber 23 and the other end extending into the material bucket 25. After use, the material bucket 25 is rotated to disengage from the bottom of the gun body 2, exposing the suction pipe 26. The nozzle cap on the threaded head of the gun body 2 is unscrewed, and the threaded end cap 11 of the cleaning nozzle is installed on the threaded head. Then, the water pipe is connected to the water pipe connector 12, and the other end of the water pipe is connected to clean water through a pump. The pump is started to deliver water through the water pipe to the conveying chamber 23 inside the gun body 2 to rinse the conveying chamber 23, the adjusting rod 24, and the suction pipe 26. The wastewater after rinsing is discharged through the bottom end of the suction pipe 26. This design eliminates the need to disassemble the gun body 2, making the cleaning operation of the gun body 2 more convenient and faster, facilitating later maintenance, and making it more convenient to use.

[0028] In summary, this spray gun nozzle structure allows for direct replacement of the nozzle body 1 with a water pipe after the spray gun body 2 has been coated. Water can then be directly supplied through the water pipe to rinse the inside of the gun body 2 and the suction pipe 26. The wastewater after rinsing is discharged through the bottom of the suction pipe 26. This design eliminates the need to disassemble the gun body 2, making the cleaning operation more convenient and faster, facilitating later maintenance, and improving usability. The water pipe connector 12 provides a stable connection with the water pipe, and the sealing ring 16 ensures a tight seal at the connection between the nozzle body 1 and the gun body 2, meeting user needs and demonstrating broad application prospects.

[0029] 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 gun nozzle cleaning structure, comprising a nozzle body (1), characterized in that: The nozzle body (1) includes a nozzle threaded end cap (11). The nozzle body (1) is installed on the threaded head of the gun body (2) through the nozzle threaded end cap (11). A water pipe connector (12) is provided on one side of the nozzle threaded end cap (11) for connecting a water pipe to clean the gun body (2).

2. The spray gun nozzle cleaning structure according to claim 1, characterized in that: The water pipe connector (12) is provided with a protruding ring (13).

3. The spray gun nozzle cleaning structure according to claim 1, characterized in that: The water pipe connector (12) is also provided with a groove (14) located on one side of the convex ring (13).

4. The spray gun nozzle cleaning structure according to claim 1, characterized in that: The water pipe connector (12) has an arc-shaped guide portion (15) on the outer ring of the end away from the threaded end cap (11) of the rinsing nozzle.

5. The spray gun nozzle cleaning structure according to claim 1, characterized in that: The threaded end cap (11) of the rinsing nozzle is provided with a sealing ring (16) inside.

6. The spray gun nozzle cleaning structure according to claim 1, characterized in that: The threaded end cap (11) of the rinsing nozzle is provided with a limiting protrusion (17) on the side away from the water pipe connector (12).

7. The spray gun nozzle cleaning structure according to claim 1, characterized in that: The gun body (2) is provided with a main unit (21) at the end away from the threaded head, and a fixing block (22) matching the limiting protrusion (17) is also provided on the threaded head of the gun body (2).

8. The spray gun nozzle cleaning structure according to claim 1, characterized in that: The gun body (2) has a delivery chamber (23) inside, and an adjusting rod (24) is provided inside the delivery chamber (23).

9. The spray gun nozzle cleaning structure according to claim 1, characterized in that: The bottom of the gun body (2) is threaded with a material barrel (25). The gun body (2) has a suction pipe (26) with one end connected to the conveying chamber (23) and the other end extending into the material barrel (25).