Handheld polishing device for ship anchor chain welding point

By designing a nozzle on the handheld grinding device at the anchor chain welding point of the ship to spray mist-like water droplets to cool the grinding wheel and collect debris, the problems of short grinding wheel life and debris splashing are solved, thereby extending the service life of the grinding wheel and improving the safety of the grinding process.

CN224254928UActive Publication Date: 2026-05-19WEIHAI LANWAN MARINE ENG EQUIP RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIHAI LANWAN MARINE ENG EQUIP RES INST CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing handheld grinding devices for ship anchor chain welding points are prone to having their grinding wheels shortened by high temperatures after prolonged use, and there is also significant debris splashing during the grinding process.

Method used

Design a handheld grinding device for ship anchor chain welding points with a nozzle. The nozzle sprays mist-like water droplets to cool the grinding wheel and collects debris during the grinding process.

Benefits of technology

It extends the service life of the grinding wheel, reduces chip splashing, and improves the safety and efficiency of the grinding process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a ship anchor chain welding point handheld polishing device which comprises a shell, the side wall of the shell is fixedly connected with a first motor and a grip, the output end of the first motor is fixedly connected with a first rotating shaft, and the end, away from the first motor, of the first rotating shaft is fixedly connected with a first driving shaft. A grinding wheel is fixedly connected to the outer surface of the first driving shaft, a first bevel gear is fixedly connected to the outer surface of the first driving shaft, a protection layer is fixedly connected to the inner wall of the shell, a mounting layer is fixedly connected to the upper surface of the protection layer, and a partition plate is fixedly connected to the upper surface of the mounting layer; and a water conveying groove is formed in the upper surface of the mounting layer. The handheld polishing device for the ship anchor chain welding point is reasonable in structure, mist water drops can be sprayed out from the spray head during polishing, the grinding wheel can be cooled, the service life of the grinding wheel can be prolonged, and the situation that chippings splash in the polishing process can be relieved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of ship anchor chain welding point processing device, specifically a handheld grinding device for ship anchor chain welding points. Background Technology

[0002] Anchor chains are crucial components for ensuring the safe berthing of ships. The welded joints, as the connecting points of the anchor chain, directly affect the overall strength and reliability of the chain. During ship operation, anchor chains must withstand enormous tensile forces and complex stresses; therefore, the grinding and polishing of the welded joints is of paramount importance.

[0003] Existing handheld grinding devices for ship anchor chain welding points often only have a simple grinding function. The grinding wheel of the device is prone to having its service life affected by high temperature after long-term operation. Summary of the Invention

[0004] The purpose of this invention is to provide a handheld grinding device for the welding points of ship anchor chains. While grinding, the device can spray mist-like water droplets from the nozzle, which can both cool the grinding wheel and extend its service life, and also reduce the flying of debris during the grinding process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A handheld grinding device for welding points of ship anchor chains is provided, comprising a housing, a first motor and a handle fixedly connected to the side wall of the housing, a first rotating shaft fixedly connected to the output end of the first motor, a first drive shaft fixedly connected to the end of the first rotating shaft away from the first motor, a grinding wheel fixedly connected to the outer surface of the first drive shaft, a first bevel gear fixedly connected to the outer surface of the first drive shaft, a protective layer fixedly connected to the inner wall of the housing, an mounting layer fixedly connected to the upper surface of the protective layer, and a handle fixedly connected to the upper surface of the mounting layer. The device includes a partition plate. A water delivery channel is formed on the upper surface of the mounting layer, located to the right of the partition plate. A second drive shaft is rotatably mounted on the inner bottom of the water delivery channel. A second bevel gear is fixedly connected to the outer surface of the second drive shaft, meshing with a first bevel gear. Multiple impellers are fixedly connected to the outer surface of the second drive shaft. A pipe groove is formed on the inner surface of the water delivery channel. A water delivery pipe is fixedly connected to the lower surface of the mounting layer, communicating with the pipe groove. A nozzle is fixedly connected to the lower surface of the housing, communicating with the nozzle.

[0006] Optionally, a water inlet is provided on the upper surface of the shell, and a sealing block is provided inside the water inlet.

[0007] Optionally, a collection box is fixedly connected to the upper surface of the mounting layer. The collection box is located on the left side of the partition plate. An installation groove is opened on the upper surface of the collection box. A vent plate is fixedly connected to the inner surface of the installation groove. A second motor is fixedly connected to the upper surface of the vent plate. A second rotating shaft is fixedly connected to the output end of the second motor. A fan blade is fixedly connected to the outer surface of the second rotating shaft.

[0008] Optionally, the upper surface of the ventilated plate is provided with ventilated holes, and the number of ventilated holes is multiple; the inner bottom of the mounting groove is provided with filter holes, and the number of filter holes is multiple.

[0009] Optionally, the side wall of the collection box is fixedly connected to a suction pipe, and there are two suction pipes. The end of the suction pipe away from the collection box is fixedly connected to a conversion box, and the lower surface of the conversion box is provided with a dust suction port, and there are multiple dust suction ports.

[0010] Optionally, a blocking block is movably installed on the side wall of the housing, a pull ring is fixedly connected to the side wall of the blocking block, and a barrier net is fixedly connected to the lower surface of the housing, wherein the number of the barrier nets is two.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention comprises a first motor, a first rotating shaft, a first drive shaft, a grinding wheel, a first bevel gear, a second drive shaft, impeller blades, a tubular groove, a water supply pipe, and a nozzle. When grinding is required, the first motor operates, driving the first rotating shaft, the first drive shaft, and the grinding wheel to rotate. Simultaneously, the first bevel gear rotates, which in turn drives the second bevel gear and the second drive shaft, further rotating the impeller blades. This pushes water from the water supply groove into the tubular groove, which is then transported through the water supply pipe to the nozzle. The nozzle sprays out mist-like water droplets, which cools the grinding wheel, extending its lifespan, and reduces the flying debris during grinding. In short, this invention sprays mist-like water droplets from the nozzle while grinding, effectively cooling the grinding wheel, extending its lifespan, and reducing the flying debris during grinding.

[0013] This utility model is equipped with a second motor, a second rotating shaft, fan blades, a dust inlet, a collection box, a conversion box, a suction pipe, a pull ring, and a stopper. When it is necessary to collect some of the debris generated during grinding, the second motor works, driving the second rotating shaft and fan blades to rotate, thereby generating airflow from inside the collection box upwards. This causes the collection box to generate suction, allowing the debris to enter the conversion box from the dust inlet, then from the conversion box into the suction pipe, and finally from the suction pipe into the collection box. This allows for the collection of some debris. When it is necessary to remove the debris, simply pull the pull ring to open the stopper. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a first-view sectional structural diagram of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a second-view sectional structural diagram of the present invention;

[0019] Figure 5 This is a schematic diagram of the third-view cross-sectional structure of the present invention;

[0020] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B;

[0021] Figure 7 This is a partial structural schematic diagram of the present invention.

[0022] In the diagram: 1. Housing; 2. First motor; 3. First rotating shaft; 4. First drive shaft; 5. Grinding wheel; 6. First bevel gear; 7. Protective layer; 8. Mounting layer; 9. Partition plate; 10. Water supply tank; 11. Second drive shaft; 12. Wheel blade; 13. Second bevel gear; 14. Pipe groove; 15. Water supply pipe; 16. Nozzle; 17. Water inlet; 18. Sealing block; 19. Collection box; 20. Mounting groove; 21. Ventilation plate; 22. Second motor; 23. Second rotating shaft; 24. Fan blade; 25. Ventilation hole; 26. Filter hole; 27. Block; 28. Pull ring; 29. ​​Suction pipe; 30. Conversion box; 31. Dust suction port; 32. Barrier net; 33. Handle. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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, and 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. Therefore, they should not be construed as limitations on this utility model.

[0026] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Reference Figure 1-7The present invention will now be described. A handheld grinding device for ship anchor chain welding points includes a housing 1. A first motor 2 and a handle 33 are fixedly connected to the side wall of the housing 1, allowing for convenient grinding operations by holding the handle 33. A first rotating shaft 3 is fixedly connected to the output end of the first motor 2. A first drive shaft 4 is fixedly connected to the end of the first rotating shaft 3 away from the first motor 2. A grinding wheel 5 and a first bevel gear 6 are fixedly connected to the outer surface of the first drive shaft 4. A protective layer 7 is fixedly connected to the inner wall of the housing 1. An installation layer 8 is fixedly connected to the upper surface of the protective layer 7. A partition plate 9 is fixedly connected to the upper surface of the installation layer 8. A water inlet 10 is provided on the upper surface of the installation layer 8, located to the right of the partition plate 9. A second drive shaft 11 is rotatably mounted on the inner bottom of the water inlet 10. A second bevel gear 13 is fixedly connected to the outer surface of the second drive shaft 11, meshing with the first bevel gear 6. Multiple blades 12 are fixedly connected to the outer surface of the second drive shaft 11. The inner surface of the water tank 10 is provided with a pipe groove 14. A water supply pipe 15 is fixedly connected to the lower surface of the mounting layer 8. The water supply pipe 15 is connected to the pipe groove 14. A nozzle 16 is fixedly connected to the lower surface of the housing 1. The water supply pipe 15 is connected to the nozzle 16. When grinding is required, the first motor 2 works, driving the first rotating shaft 3, the first drive shaft 4 and the grinding wheel 5 to rotate. At the same time, it drives the first bevel gear 6 to rotate, thereby driving the second bevel gear 13 and the second drive shaft 11 to rotate, which in turn drives the impeller 12 to rotate. The water in the water tank 10 is pushed into the pipe 14 and transported to the nozzle 16 through the water pipe 15. The nozzle 16 sprays out a mist of water droplets, which can cool down the grinding wheel 5 and extend its service life, and also reduce the flying of debris during grinding. The upper surface of the housing 1 is provided with a water inlet 17. A sealing block 18 is provided inside the water inlet 17. The sealing block 18 is used to block the water inlet 17. Water can be added to the housing 1 through the water inlet 17 by opening the sealing block 18.

[0028] The handheld grinding device for ship anchor chain welding points provided by this utility model, compared with the prior art, can spray mist-like water droplets from the nozzle 16 while grinding, which can both cool the grinding wheel 5 and extend its service life, and also reduce the situation of debris flying during the grinding process.

[0029] Please refer to another embodiment of this utility model as well. Figures 1 to 7A collection box 19 is fixedly connected to the upper surface of the mounting layer 8. The collection box 19 is located to the left of the partition plate 9. An installation groove 20 is opened on the upper surface of the collection box 19. A vent plate 21 is fixedly connected to the inner surface of the installation groove 20. A second motor 22 is fixedly connected to the upper surface of the vent plate 21. A second rotating shaft 23 is fixedly connected to the output end of the second motor 22. A fan blade 24 is fixedly connected to the outer surface of the second rotating shaft 23. When it is necessary to collect some of the debris generated by grinding, the second motor 22 works, driving the second rotating shaft 23 and the fan blade 24 to rotate, thereby generating airflow from inside the collection box 19 upwards. This causes the collection box 19 to generate suction, allowing the debris to enter the conversion box 30 from the dust inlet 31, then from the conversion box 30 into the suction duct 29, and finally from the suction duct 29 into the collection box 19. This allows for the collection of some debris. To remove the debris, simply pull... Pull ring 28 opens the block 27. The upper surface of the vent plate 21 has multiple vent holes 25. The bottom of the mounting groove 20 has multiple filter holes 26. Both the vent holes 25 and the filter holes 26 are for air circulation, but debris cannot pass through them. The side wall of the collection box 19 is fixedly connected to two suction pipes 29. The end of the suction pipe 29 away from the collection box 19 is fixedly connected to a conversion box 30. The lower surface of the conversion box 30 has multiple dust suction ports 31. The side wall of the housing 1 is movably installed with a block 27. Pull ring 28 is fixedly connected to the side wall of the block 27. The lower surface of the housing 1 is fixedly connected to a net 32. The net 32 ​​is responsible for blocking some debris that is not sucked into the collection box 19, further concentrating the debris. There are two nets 32.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A handheld grinding device for welding points of ship anchor chains, comprising a housing (1), characterized in that: A first motor (2) and a handle (33) are fixedly connected to the side wall of the housing (1). A first rotating shaft (3) is fixedly connected to the output end of the first motor (2). A first drive shaft (4) is fixedly connected to the end of the first rotating shaft (3) away from the first motor (2). A grinding wheel (5) is fixedly connected to the outer surface of the first drive shaft (4). A first bevel gear (6) is fixedly connected to the outer surface of the first drive shaft (4). A protective layer (7) is fixedly connected to the inner wall of the housing (1). An installation layer (8) is fixedly connected to the upper surface of the protective layer (7). A partition plate (9) is fixedly connected to the upper surface of the installation layer (8). A water delivery groove (10) is provided on the upper surface of the installation layer (8). The water delivery groove (10) is located at... On the right side of the partition plate (9), a second drive shaft (11) is rotatably installed at the bottom of the water supply tank (10). A second bevel gear (13) is fixedly connected to the outer surface of the second drive shaft (11). The second bevel gear (13) meshes with the first bevel gear (6). A wheel blade (12) is fixedly connected to the outer surface of the second drive shaft (11). There are multiple wheel blades (12). A pipe groove (14) is opened on the inner surface of the water supply tank (10). A water supply pipe (15) is fixedly connected to the lower surface of the mounting layer (8). The water supply pipe (15) is connected to the pipe groove (14). A nozzle (16) is fixedly connected to the lower surface of the housing (1). The water supply pipe (15) is connected to the nozzle (16).

2. The handheld grinding device for ship anchor chain welding points as described in claim 1, characterized in that: The upper surface of the shell (1) is provided with a water inlet (17), and a sealing block (18) is provided inside the water inlet (17).

3. The handheld grinding device for ship anchor chain welding points as described in claim 1, characterized in that: A collection box (19) is fixedly connected to the upper surface of the mounting layer (8). The collection box (19) is located on the left side of the partition plate (9). An installation groove (20) is opened on the upper surface of the collection box (19). A ventilated plate (21) is fixedly connected to the inner surface of the installation groove (20). A second motor (22) is fixedly connected to the upper surface of the ventilated plate (21). A second rotating shaft (23) is fixedly connected to the output end of the second motor (22). A fan blade (24) is fixedly connected to the outer surface of the second rotating shaft (23).

4. The handheld grinding device for ship anchor chain welding points as described in claim 3, characterized in that: The upper surface of the ventilated plate (21) is provided with ventilated holes (25), and there are multiple ventilated holes (25). The bottom of the mounting groove (20) is provided with filter holes (26), and there are multiple filter holes (26).

5. The handheld grinding device for ship anchor chain welding points as described in claim 3, characterized in that: The side wall of the collection box (19) is fixedly connected to a suction pipe (29), and there are two suction pipes (29). The end of the suction pipe (29) away from the collection box (19) is fixedly connected to a conversion box (30). The lower surface of the conversion box (30) is provided with a dust suction port (31), and there are multiple dust suction ports (31).

6. The handheld grinding device for ship anchor chain welding points as described in claim 1, characterized in that: A blocking block (27) is movably installed on the side wall of the housing (1), and a pull ring (28) is fixedly connected to the side wall of the blocking block (27). A net (32) is fixedly connected to the lower surface of the housing (1), and there are two nets (32).