A spray gun for ship painting

By designing a combination of spray gun body, unclogging parts and mounting parts, the problem of uneven spraying caused by nozzle blockage was solved, and the spray gun was quickly adjusted and efficiently coated.

CN224321676UActive Publication Date: 2026-06-05DONGGUAN FUXIN ANTI-CORROSION ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN FUXIN ANTI-CORROSION ENGINEERING CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing spray guns have complex structures, and nozzle clogging can lead to uneven spraying, reducing the efficiency of ship coating.

Method used

A spray gun comprising a spray gun body, a dredging component, and an mounting component has been designed. The dredging component drives the conical block to rotate and move axially through a fixed column to remove impurities inside the nozzle. The mounting component enables quick assembly and disassembly and adjustment of the nozzle state through a threaded column and a guide tube.

Benefits of technology

With its simple structure, it can quickly clear nozzle blockages, improve coating efficiency, and ensure uniform coating.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224321676U_ABST
    Figure CN224321676U_ABST
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Abstract

The utility model relates to spray gun technical field, concretely is a kind of spray gun for ship coating, the spray gun includes spray gun main body, dredging piece and mounting piece;Dredging piece is located at one side of spray gun main body, and mounting piece is set in the bottom of dredging piece;Spray gun main body includes gun body and nozzle, and nozzle is located at one side of gun body;Dredging piece includes locating block, connecting pipe, mounting hole, connecting shaft and fixed column;Locating block is fixed on the surface of one side of gun body, and locating block is provided with two groups, connecting pipe sleeve is connected at the outside of nozzle, and connecting pipe is attached with locating block, mounting hole is opened in the inside of connecting pipe, connecting shaft is located in the inside of mounting hole, fixed column is fixed on the outer surface of connecting shaft, spring is fixed in the inside of mounting hole, spring is fixed with movable column outside, and bearing is fixed in the inside of movable column.The utility model has the advantages of simple structure, reasonable in design, can quickly adjust the nozzle state of spray gun, keep the advantages of spray gun spraying efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of spray gun technology, specifically a spray gun for ship painting. Background Technology

[0002] Ship painting is a crucial part of ship manufacturing and maintenance. Its purpose is to protect the hull from seawater corrosion, marine organism adhesion, and mechanical wear through coating, while also improving the ship's weather resistance and service life. Spray guns are one of the essential pieces of equipment in ship painting.

[0003] Existing spray guns have complex structures and unreasonable designs. In actual use, when the nozzle of the spray gun becomes clogged, it will lead to uneven spraying, requiring more time for coating work and thus reducing the efficiency of ship coating. To address this problem, the inventors designed a spray gun for ship coating. Utility Model Content

[0004] The purpose of this utility model is to provide a spray gun for ship painting, which has the advantages of simple structure, reasonable design, and the ability to quickly adjust the nozzle state of the spray gun to maintain the spraying efficiency, thus solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spray gun for ship painting, the spray gun comprising a spray gun body, a dredging component, and a mounting component; the dredging component is located on one side of the spray gun body, and the mounting component is disposed at the bottom of the dredging component;

[0006] The spray gun body includes a gun body and a nozzle, with the nozzle located on one side of the gun body;

[0007] The unblocking component includes a positioning block, a connecting pipe, a mounting hole, a connecting shaft, and a fixing post. The positioning block is fixed on the surface of one side of the gun body. There are two sets of positioning blocks. The connecting pipe is sleeved on the outside of the nozzle and fits against the positioning block. The mounting hole is opened inside the connecting pipe. The connecting shaft is located inside the mounting hole. The fixing post is fixed on the outer surface of the connecting shaft.

[0008] Preferably, a spring is fixed inside the mounting hole, a movable column is fixed outside the spring, a bearing is fixed inside the movable column, and a connecting shaft is located in the inner ring of the bearing.

[0009] Preferably, a conical block is fixed to the outer wall of the fixed column, and the conical blocks are arranged in a circular pattern on the outside of the fixed column.

[0010] Preferably, a guide post is fixed to the outer surface of the connecting shaft, and the guide post extends through and connects to the outside of the connecting pipe.

[0011] Preferably, the mounting component includes a fixing block, a connecting hole, and a mounting post; the fixing block is fixed to the surface of the other side of the gun body, the connecting hole is opened inside the fixing block, and the mounting post is fixed to the outer wall of the connecting tube.

[0012] Preferably, the mounting post has a through-hole and a connecting groove.

[0013] Preferably, the mounting post has an internal threaded connection to a threaded post, which is located inside the movable hole, and a guide tube is fixed to the outer surface of the threaded post.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model provides a spray gun for ship painting, which includes a spray gun body, a cleaning component, and a mounting component. The cleaning component is located on one side of the spray gun body, and the mounting component is located at the bottom of the cleaning component. The cleaning component includes a positioning block, a connecting pipe, a mounting hole, a connecting shaft, and a fixing column. The overall structure is simple and reasonably designed. The fixing column drives the conical block to rotate and move axially, mechanically removing the cured paint or impurities adhering to the inside of the nozzle, avoiding the decrease in flow rate due to blockage. This solution allows for flexible adjustment of the spray gun nozzle state and improves painting efficiency.

[0016] 2. This utility model can restrict the connecting pipe to the required position by clamping the mounting post to the outside of the fixing block. When it is necessary to fix or use the connecting pipe, the position of the threaded post can be rotated. This solution can quickly assemble and disassemble the connecting pipe, and the structure is simple and easy to operate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a structural diagram of the spray gun body of this utility model;

[0019] Figure 3 This is a cross-sectional view of the unblocking component of this utility model;

[0020] Figure 4 This is a structural diagram of the movable column of this utility model.

[0021] The reference numerals and names in the figure are as follows:

[0022] 1. Spray gun body; 11. Gun body; 12. Nozzle; 2. Unblocking component; 21. Positioning block; 22. Connecting pipe; 23. Mounting hole; 24. Spring; 25. Movable column; 26. Bearing; 27. Connecting shaft; 28. Guide column; 29. ​​Fixed column; 291. Conical block; 3. Mounting component; 31. Fixed block; 32. Connecting hole; 33. Mounting column; 34. Connecting groove; 35. Movable hole; 36. Threaded column; 37. Guide pipe. Detailed Implementation

[0023] 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.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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 of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] Please see Figures 1 to 4The present invention provides an embodiment of a spray gun for ship painting, the spray gun comprising a spray gun body 1, a dredging component 2, and a mounting component 3; the dredging component 2 is located on one side of the spray gun body 1, and the mounting component 3 is disposed at the bottom of the dredging component 2;

[0027] The spray gun body 1 includes a gun body 11 and a nozzle 12, with the nozzle 12 located on one side of the gun body 11;

[0028] The gun body 11 serves as the main structure of the spray gun and is used for handheld operation. It integrates a paint delivery channel and a switching device. The nozzle 12 is the core component for spraying, which achieves uniform coating of the ship's surface by atomizing the paint.

[0029] The unblocking component 2 includes a positioning block 21, a connecting pipe 22, a mounting hole 23, a connecting shaft 27, and a fixing post 29. The positioning block 21 is fixed on the surface of one side of the gun body 11. There are two sets of positioning blocks 21. The connecting pipe 22 is sleeved on the outside of the nozzle 12 and fits against the positioning block 21. The mounting hole 23 is opened inside the connecting pipe 22. The connecting shaft 27 is located inside the mounting hole 23. The fixing post 29 is fixed on the outer surface of the connecting shaft 27.

[0030] The positioning block 21 is used to restrict the connecting pipe 22 to the required position, the connecting pipe 22 is used to position the unblocking part 2 to the required position, the mounting hole 23 is used to receive and install the spring 24, the connecting shaft 27 is used to receive and install the fixing post 29, and then to receive and install the guide post 28.

[0031] A spring 24 is fixed inside the mounting hole 23, a movable column 25 is fixed outside the spring 24, a bearing 26 is fixed inside the movable column 25, and a connecting shaft 27 is set in the inner ring of the bearing 26.

[0032] Spring 24 provides elastic force to movable column 25, which is used to change the horizontal position of its internal connecting shaft 27, and bearing 26 is used to connect shaft 27 to rotate inside it;

[0033] A conical block 291 is fixed to the outer wall of the fixed column 29, and the conical blocks 291 are arranged in a circular pattern on the outside of the fixed column 29;

[0034] The conical block 291 is used to insert into the nozzle 12 and rotate to scrape away impurities, and the circumferential array design increases the contact area;

[0035] A guide post 28 is fixed to the outer surface of the connecting shaft 27, and the guide post 28 passes through and is connected to the outside of the connecting tube 22;

[0036] The guide post 28 facilitates changing the horizontal position of the movable post 25 and facilitates applying rotational force to the connecting shaft 27;

[0037] Mounting component 3 includes a fixing block 31, a connecting hole 32, and a mounting post 33; the fixing block 31 is fixed to the surface of the other side of the gun body 11, the connecting hole 32 is opened inside the fixing block 31, and the mounting post 33 is fixed to the outer wall of the connecting tube 22.

[0038] The fixing block 31 is used to connect with the mounting post 33, thereby fixing the connecting pipe 22 outside the mounting post 33 in the required position, and the connecting hole 32 is used for the threaded post 36 to be inserted into the interior of the fixing block 31;

[0039] The mounting post 33 has a through hole 35 and a connecting groove 34 inside.

[0040] The movable hole 35 allows the threaded post 36 to rotate inside it, and the connecting groove 34 allows the fixing block 31 to be inserted into the interior of the mounting post 33;

[0041] The internal threaded connection of the mounting post 33 is a threaded post 36, which is located inside the movable hole 35. A guide tube 37 is fixed on the outer surface of the threaded post 36.

[0042] The threaded post 36 is used to connect the mounting post 33 to the fixing block 31, and the guide tube 37 facilitates the application of rotational force to the threaded post 36.

[0043] Working principle: When painting is required, hold the gun body 11 and turn it on, allowing the nozzle 12 to spray paint onto the desired location. When the flow rate of the nozzle 12 decreases, insert a wrench into the guide tube 37 and apply a rotational force to the guide tube 37, turning the threaded post 36 out of the fixing block 31. Then, apply a pulling force to the connecting tube 22, removing the mounting post 33 from the outside of the fixing block 31. Finally, insert the connecting tube 22 into the outside of the nozzle 12, ensuring that the connecting tube 22 is in contact with the surface of the positioning block 21. Under the action of bearing 26, a rotational force is applied to guide post 28. At the same time, a pushing force is applied to guide post 28, causing fixed post 29 to rotate and translate. Conical block 291 rotates inside nozzle 12, which can remove the impurities remaining inside nozzle 12. After adjusting the position of conical block 291 several times, connecting pipe 22 is removed from outside nozzle 12, and mounting post 33 is locked inside fixed block 31. A rotational force is applied to guide pipe 37, causing threaded post 36 to move into connecting hole 32.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spray gun for ship painting, characterized in that, include: The spray gun body (1), the unblocking component (2), and the mounting component (3) are provided; the unblocking component (2) is located on one side of the spray gun body (1), and the mounting component (3) is located at the bottom of the unblocking component (2); The spray gun body (1) includes a gun body (11) and a nozzle (12), with the nozzle (12) located on one side of the gun body (11); The unblocking component (2) includes a positioning block (21), a connecting pipe (22), a mounting hole (23), a connecting shaft (27), and a fixing post (29). The positioning block (21) is fixed on the surface of one side of the gun body (11). There are two sets of positioning blocks (21). The connecting pipe (22) is sleeved on the outside of the nozzle (12) and the connecting pipe (22) fits against the positioning block (21). The mounting hole (23) is opened inside the connecting pipe (22). The connecting shaft (27) is located inside the mounting hole (23). The fixing post (29) is fixed on the outer surface of the connecting shaft (27).

2. A spray gun for ship painting according to claim 1, characterized in that, A spring (24) is fixed inside the mounting hole (23), a movable column (25) is fixed outside the spring (24), a bearing (26) is fixed inside the movable column (25), and a connecting shaft (27) is set in the inner ring of the bearing (26).

3. A spray gun for ship painting according to claim 1, characterized in that, The outer wall of the fixed column (29) is fixed with a conical block (291), which is arranged in a circular pattern on the outside of the fixed column (29).

4. A spray gun for ship painting according to claim 1, characterized in that, The outer surface of the connecting shaft (27) is fixed with a guide post (28), which is connected through the outside of the connecting pipe (22).

5. A spray gun for ship painting according to claim 1, characterized in that, The mounting component (3) includes a fixing block (31), a connecting hole (32), and a mounting post (33); the fixing block (31) is fixed to the surface of the other side of the gun body (11), the connecting hole (32) is opened inside the fixing block (31), and the mounting post (33) is fixed to the outer wall of the connecting pipe (22).

6. A spray gun for ship painting according to claim 5, characterized in that, The mounting post (33) has a through hole (35) and a connecting groove (34) inside.

7. A spray gun for ship painting according to claim 5, characterized in that, The mounting post (33) has an internal threaded connection to a threaded post (36), which is located inside the movable hole (35). A guide tube (37) is fixed to the outer surface of the threaded post (36).