A ship outer plate rust removal device
By using a motor-driven stirring rod and a plug, the rust removal liquid in the ship's outer hull rust removal device is quantitatively sprayed and rust impurities are filtered, solving the problems of rust removal liquid waste and low rust removal efficiency, and improving the rust removal effect and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHOUSHAN BAIYING SHIP ENGINEERING CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-09
AI Technical Summary
Existing ship hull rust removal devices suffer from problems such as waste of rust removal fluid and poor rust removal effect due to improper flow control when using rust removal fluid.
The stirring rod is driven by a motor to rotate, and the stirring rod drives the block and sealing gasket to intermittently block the inlet of the infusion pipe, so as to realize the quantitative spraying of rust removal liquid. Combined with the grinding wheel, rust removal is carried out, and rust impurities are filtered by the collection filter frame.
It enables the quantitative use of rust removal fluid, reduces waste, improves rust removal efficiency, lowers costs, and facilitates the centralized treatment of rust impurities.
Smart Images

Figure CN224334159U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ship rust removal technology, specifically to a rust removal device for ship outer plates. Background Technology
[0002] After a certain period of operation or navigation, rust will gradually form on the surface of the hull plating or ship structure in the marine environment. If not treated in time, it will pose a threat to the structural strength of the ship and navigation safety. Therefore, regular rust removal operations are necessary.
[0003] Chinese Patent Publication No. CN218874942U discloses a rapid rust removal device for plate components in shipbuilding, comprising a baffle, a moving mechanism, a handrail, and a grinding mechanism. A liquid storage tank is mounted on the handrail. The output shaft of the grinding mechanism motor passes through the baffle and is connected to a first connecting shaft. A first bevel gear is fixed on the first connecting shaft. A second bevel gear and a third bevel gear are symmetrically meshed on both sides of the first bevel gear. The second bevel gear is connected to a second connecting shaft, on which a first grinding wheel is mounted. The third bevel gear is connected to a third connecting shaft, on which a second grinding wheel is mounted. This invention, by placing the grinding mechanism, which works with the rust-removing liquid, on both sides of the rapid rust removal device, allows for rust removal of the corners and edges of the plate components using the sides of the grinding mechanism, saving time and effort and improving rust removal efficiency.
[0004] The aforementioned device uses rust remover in conjunction with a grinding wheel to remove rust from the ship's outer plating. However, the flow rate of the rust remover is not controlled during the rust removal process. Therefore, too much rust remover will lead to a lot of waste and increase the cost of rust removal, while too little rust remover will result in poor rust removal effect and require more time. Utility Model Content
[0005] To address the aforementioned problems, a rust removal device for ship outer plates is provided. A motor drives a stirring rod to rotate, which agitates the rust removal solution inside the storage tank, preventing sedimentation. Simultaneously, the rotation of the stirring rod also rotates external plugs and sealing gaskets, intermittently blocking the inlet of the infusion pipe. This allows for the metered spraying of the rust removal solution from the storage tank onto the surface of the grinding wheel. This metered spraying avoids using too much or too little rust removal solution, reducing waste and improving the rust removal efficiency of the grinding wheel.
[0006] To address the problems of existing technologies, this utility model provides a rust removal device for ship outer plates, including a mounting plate. The mounting plate has a support plate and symmetrical support blocks on its side wall. A rotating rod and a driving rod are rotatably connected between the two support blocks. A driven wheel is located at the middle end of the rotating rod, and grinding wheels for rust removal are located at both ends of the rotating rod. A rust removal liquid storage tank is located on the top of the support plate. Both sides of the rust removal liquid storage tank are connected to liquid delivery pipes. One end of each liquid delivery pipe is connected to a nozzle for spraying liquid onto the grinding wheels. A metering liquid dispensing assembly is located inside the rust removal liquid storage tank.
[0007] Preferably, the metering dispensing assembly includes a motor rotatably mounted on top of the rust remover storage tank. The output shaft of the motor is connected to a stirring rod via a coupling. One end of the stirring rod extends through to the outside of the rust remover storage tank and is equipped with a worm gear. Multiple plugs for blocking the inlet end of the dispensing pipe are provided on the outside of the stirring rod.
[0008] Preferably, the sidewall of the plug is provided with a sealing gasket to prevent leakage.
[0009] Preferably, a worm wheel that meshes with a worm gear is provided on the outside of the drive rod, and a drive wheel that meshes with a driven wheel is also provided on the outside of the drive rod.
[0010] Preferably, the side wall of the mounting plate is also provided with a spring telescopic rod, and the telescopic end of the spring telescopic rod is provided with a collection filter frame for collecting rust. The collection filter frame has multiple leakage holes for the leakage of rust removal liquid.
[0011] Preferably, the sidewall of the collecting filter frame is rotatably provided with an abutment roller to reduce wear on the collecting filter frame.
[0012] The advantages of this utility model compared to the prior art are:
[0013] 1. The motor drives the stirring rod to rotate, which agitates the rust remover in the storage tank to prevent sedimentation. The rotation of the stirring rod also rotates the external plug and sealing gasket, intermittently blocking the inlet of the infusion tube. This ensures that the rust remover in the storage tank is sprayed onto the surface of the grinding wheel in a measured amount. This precise spraying avoids using too much or too little rust remover, reducing waste and improving the rust removal efficiency of the grinding wheel.
[0014] 2. The rust removal work can be carried out on the outer plate of the ship by the combined work of the grinding wheel and the rust removal liquid. The rust that falls off during the operation will fall into the inside of the collection filter frame. The rust removal liquid can be filtered by the filter holes inside the collection filter frame, while the rust impurities will be stored inside the collection filter frame for easy centralized treatment later. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a rust removal device for ship outer plates.
[0016] Figure 2 This is a front view schematic diagram of a rust removal device for ship outer plates.
[0017] Figure 3 This is a schematic diagram of some components in a ship hull rust removal device.
[0018] Figure 4 This is a schematic diagram of the nozzle structure in a rust removal device for ship hulls.
[0019] Figure 5 This is a schematic diagram of the structure of a quantitative liquid dispensing component in a ship hull rust removal device.
[0020] Figure 6 This is a schematic diagram of the structure of a collection filter frame in a rust removal device for ship outer plates.
[0021] The following are the labels in the diagram: 1. Mounting plate; 2. Support block; 3. Support plate; 4. Rust remover storage tank; 5. Motor; 6. Infusion pipe; 7. Grinding wheel; 8. Collection filter frame; 9. Rotating rod; 10. Stirring rod; 11. Worm gear; 12. Drive rod; 13. Worm wheel; 14. Driving wheel; 15. Driven wheel; 16. Nozzle; 17. Sealing gasket; 18. Block; 19. Spring telescopic rod; 20. Abutment roller. Detailed Implementation
[0022] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0023] like Figures 1 to 6 As shown, this utility model provides:
[0024] A rust removal device for ship outer plates includes a mounting plate 1. The side wall of the mounting plate 1 is provided with a support plate 3 and symmetrical support blocks 2. A rotating rod 9 and a driving rod 12 are rotatably arranged between the two support blocks 2. A driven wheel 15 is provided on the outer side of the middle end of the rotating rod 9. Grinding wheels 7 for rust removal are provided on the outer side of both ends of the rotating rod 9. A rust removal liquid storage tank 4 is provided on the top of the support plate 3. Both sides of the rust removal liquid storage tank 4 are connected to liquid delivery pipes 6. One end of the liquid delivery pipe 6 is connected to a nozzle 16 for spraying liquid onto the grinding wheels 7. A metering liquid dispensing component is provided inside the rust removal liquid storage tank 4.
[0025] By using the grinding wheel 7, rust on the ship's outer plating can be effectively removed, performing rust removal work. Simultaneously, using the rust removal fluid stored in the rust removal fluid storage tank 4 further enhances the rust removal effect, making the process more efficient. Furthermore, by controlling the flow rate of the rust removal fluid, excessive use and waste can be effectively avoided, thus significantly reducing the cost of rust removal operations while ensuring the quality of the rust removal.
[0026] like Figure 5 As shown, the metering dispensing assembly includes a motor 5 rotatably mounted on top of the rust removal liquid storage tank 4. The output shaft of the motor 5 is connected to a stirring rod 10 via a coupling. One end of the stirring rod 10 extends through to the outside of the rust removal liquid storage tank 4 and is equipped with a worm gear 11. Multiple plugs 18 for blocking the inlet end of the dispensing pipe 6 are provided on the outside of the stirring rod 10.
[0027] The motor 5 drives the stirring rod 10 to rotate, which stirs the rust remover inside the rust remover storage tank 4 to prevent sedimentation. As the stirring rod 10 rotates, it also rotates the external block 18 and sealing gasket 17, which intermittently block the inlet of the infusion pipe 6. This allows the rust remover inside the rust remover storage tank 4 to be sprayed onto the surface of the grinding wheel 7 in a measured amount, which not only reduces the waste of rust remover but also improves the rust removal efficiency of the grinding wheel 7.
[0028] like Figure 5 As shown, the side wall of the plug 18 is provided with a sealing gasket 17 to prevent leakage.
[0029] The sealing gasket 17 can prevent leakage of the rust remover inside the rust remover storage tank 4.
[0030] like Figure 3 As shown, a worm wheel 13 that meshes with the worm gear 11 is provided on the outside of the drive rod 12, and a drive wheel 14 that meshes with the driven wheel 15 is also provided on the outside of the drive rod 12.
[0031] The worm gear 11 can drive the drive rod 12 and the drive wheel 14 to rotate. At the same time, the drive wheel 14 drives the driven wheel 15 and the rotating rod 9 to rotate, which in turn drives the grinding wheels 7 on both sides of the rotating rod 9 to rotate. The grinding wheels 7 are indirectly driven to work through the operation of the metering liquid dispensing assembly.
[0032] like Figure 6 As shown, the side wall of the mounting plate 1 is also provided with a spring telescopic rod 19, and the telescopic end of the spring telescopic rod 19 is provided with a collection filter frame 8 for collecting rust. The inside of the collection filter frame 8 is provided with multiple leakage holes for the leakage of rust removal liquid.
[0033] The rust removal liquid can be filtered by the filter holes inside the collection filter frame 8, while the rust impurities will remain inside the collection filter frame 8 for convenient centralized treatment later.
[0034] like Figure 6 As shown, the side wall of the collection filter frame 8 is rotatably equipped with an abutment roller 20 to reduce wear on the collection filter frame 8.
[0035] By having the contact roller 20 contact with the outer plate of the ship, the wear of the collection filter frame 8 when it contacts the outer plate of the ship can be reduced during rust removal.
[0036] Working principle: When rust removal is required on the outer plating of a ship, rust remover is first added to the rust remover storage tank 4. Then, the device is moved to the location where rust removal is needed, and the motor 5 is started to rotate the stirring rod 10. The stirring rod 10 agitates the rust remover inside the storage tank 4, preventing sedimentation. Simultaneously, the rotation of the stirring rod 10 also rotates the external block 18 and sealing gasket 17, intermittently blocking the inlet of the infusion pipe 6. This allows the rust remover inside the storage tank 4 to be sprayed quantitatively onto the surface of the grinding wheel 7. This precise spraying avoids using too much or too little rust remover. The rust-removing liquid not only reduces waste but also improves the rust-removing efficiency of the grinding wheel 7. When the stirring rod 10 rotates, it also drives the worm gear 11 to rotate. The worm gear 11 drives the drive rod 12 and the drive wheel 14 to rotate. At the same time, the drive wheel 14 drives the driven wheel 15 and the rotating rod 9 to rotate, which in turn drives the grinding wheels 7 on both sides of the rotating rod 9 to rotate. Through the coordinated work of the grinding wheel 7 and the rust-removing liquid, rust removal can be performed on the outer plate of the ship. The rust that falls off during the operation will fall into the inside of the collection filter frame 8. The filter holes inside the collection filter frame 8 can filter the rust-removing liquid, while the rust impurities will remain inside the collection filter frame 8 for convenient centralized treatment later.
[0037] The above embodiments merely illustrate one or several implementation methods of a ship outer plate rust removal device according to this utility model. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
[0038] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A rust removal device for ship outer plating, characterized in that, The system includes a mounting plate (1), on which a support plate (3) and symmetrical support blocks (2) are provided on the side wall. A rotating rod (9) and a driving rod (12) are respectively rotatably arranged between the two support blocks (2). A driven wheel (15) is provided on the outside of the middle end of the rotating rod (9). A grinding wheel (7) for rust removal is provided on the outside of both ends of the rotating rod (9). A rust removal liquid storage tank (4) is provided on the top of the support plate (3). Both sides of the rust removal liquid storage tank (4) are connected to a liquid delivery pipe (6). One end of the liquid delivery pipe (6) is connected to a nozzle (16) for spraying liquid onto the grinding wheel (7). A metering liquid dispensing component is provided inside the rust removal liquid storage tank (4).
2. The rust removal device for ship outer plates according to claim 1, characterized in that, The metering dispensing assembly includes a motor (5) that is rotatably mounted on top of the rust removal liquid storage tank (4). The output shaft of the motor (5) is equipped with a stirring rod (10) via a coupling. One end of the stirring rod (10) extends through to the outside of the rust removal liquid storage tank (4) and is equipped with a worm gear (11). Multiple plugs (18) for blocking the inlet end of the infusion pipe (6) are provided on the outside of the stirring rod (10).
3. A rust removal device for ship outer plating according to claim 2, characterized in that, The sidewall of the plug (18) is provided with a sealing gasket (17) to prevent leakage.
4. A rust removal device for ship outer plating according to claim 1, characterized in that, The drive rod (12) is provided with a worm wheel (13) that meshes with the worm (11) on its outside, and a drive wheel (14) that meshes with the driven wheel (15) on its outside.
5. A rust removal device for ship outer plating according to claim 1, characterized in that, The side wall of the mounting plate (1) is also provided with a spring telescopic rod (19), and the telescopic end of the spring telescopic rod (19) is provided with a collection filter frame (8) for collecting rust. The collection filter frame (8) has multiple leakage holes for leaking rust removal liquid.
6. A rust removal device for ship outer plating according to claim 5, characterized in that, The side wall of the collection filter frame (8) is rotatably provided with an abutment roller (20) to reduce wear on the collection filter frame (8).