A winding device for a lifting chain assembly specifically designed for boat handling.

By introducing a bidirectional lead screw and electric push rod system into the boat handling device, the problems of cumbersome installation and non-adjustable size of the winding roller are solved, enabling rapid installation and flexible adjustment, and improving work efficiency and safety.

CN224429771UActive Publication Date: 2026-06-30HENAN HAITAI HEAVY IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN HAITAI HEAVY IND CO LTD
Filing Date
2025-05-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing boat handling and winding equipment has cumbersome installation and replacement procedures and cannot adjust the size of the winding roller, resulting in low work efficiency and poor flexibility.

Method used

The system employs a bidirectional lead screw and electric push rod system within the plate body. By adjusting the position of the take-up roller and the expansion mechanism through a drive motor, it enables the adaptive installation and disassembly of take-up rollers of different lengths, facilitating maintenance and replacement.

Benefits of technology

It enables quick installation and adjustment of the take-up roll length, improving the flexibility and efficiency of the device, and ensuring the stability and safety of the take-up roll.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a winding device for a lifting chain assembly specifically designed for boat handling, relating to the technical field of winding devices. Specifically, it includes a plate body and two sets of winding rollers. The plate body has a groove, which is a fully enclosed structure. A first bearing is fixedly connected to the inner wall of each groove. A first shaft is rotatably connected to each of the two first bearings. The opposite ends of the two first shafts are fixedly connected to the same bidirectional lead screw. Threaded blocks are threaded onto the surface of the bidirectional lead screw, and there are two threaded blocks. A first housing is fixedly connected to one side of the plate body. A first drive motor operates, driving the bidirectional lead screw to rotate via the first shaft, thereby causing the two threaded blocks and two upright plates to move towards each other. The relative positions of the two second shafts and two electric push rods can be adjusted, thus adapting to winding rollers of different lengths.
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Description

Technical Field

[0001] This utility model relates to the field of winding device technology, specifically a winding device for a lifting chain assembly used in boat handling. Background Technology

[0002] In the field of boat handling, the winding device of the lifting chain assembly is a key piece of equipment to ensure operational efficiency and safety. Traditional winding devices have revealed many limitations in practical applications, making it difficult to meet the diverse and efficient needs of modern boat handling. Specific problems are as follows:

[0003] 1. Most existing winding devices use flanges or bolts to install and fix the winding rollers. When workers install and replace them, the steps are cumbersome, which reduces work efficiency and thus reduces the practicality of the device.

[0004] 2. During the use of the device, depending on the actual situation, it is necessary to replace the take-up roller with one of different lengths. The existing device has a very limited range of applicable take-up roller sizes and cannot adjust the size of the take-up roller mounting mechanism, thus reducing the flexibility of the device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a winding device for a lifting chain assembly specifically designed for boat handling, thus solving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model employs the following technical solution: It includes a plate and two sets of take-up rollers. A groove is formed within the plate, and the groove is a fully enclosed structure. First bearings are fixedly connected to the opposing inner walls of each groove. First shafts are rotatably connected to each of the two first bearings. A single bidirectional lead screw is fixedly connected to the opposing ends of the two first shafts. Threaded blocks are threaded onto the surface of the bidirectional lead screw, and there are two threaded blocks. A first housing is fixedly connected to one side of the plate, and a first drive motor is fixedly connected within the first housing. The other end of the output shaft of the first drive motor is fixedly connected to the other end of the first shaft. A through groove is formed at the bottom of the groove, and two sets of second sliders are slidably connected within the through groove. The two threaded blocks... The bottom of each roller is fixedly connected to the top of two sets of second sliders. Each set of second sliders has a vertical plate fixedly connected to its bottom. A second bearing is fixedly inserted through one side of each set of vertical plates. A second rotating shaft is rotatably connected inside each set of second bearings. An electric push rod is fixedly connected to the opposite ends of each set of second rotating shafts. Multiple sets of movable rods are movably connected to the surface of the second rotating shafts via pins at the conveying end and output end of the electric push rods. An arc-shaped plate is movably connected to the other end of each movable rod via a pin. The arc-shaped plate is disposed on the inner wall of the take-up roller. A second housing is fixedly connected to one side of one of the vertical plates. A second drive motor is fixedly connected inside the second housing. The other end of the output shaft of the second drive motor is fixedly connected to the other end of the second rotating shaft. Two sets of chains are fixedly wound around the surface of each take-up roller.

[0009] Optionally, a sliding groove is formed on both sides of the inner wall of the groove, and a first slider is slidably connected in the sliding groove. The first slider is fixedly connected to one side of the threaded block.

[0010] Optionally, the other ends of the two sets of chains are fixedly connected to the same frame, a counterweight is provided inside the frame, and a hook lock is provided at the bottom of the frame.

[0011] Optionally, handles are fixedly connected to both sides of the plate, and anti-slip sleeves are fixedly connected to the surface of each handle.

[0012] Optionally, each of the multiple sets of the arc-shaped plates is provided with a protective pad, which is made of rubber.

[0013] Optionally, mounting frames are fixedly connected to the top of the plate near both sides, and mounting holes are provided on the top of both sets of mounting frames.

[0014] This utility model provides a winding device for lifting chain assemblies specifically designed for boat handling, which has the following advantages:

[0015] 1. The winding device of the lifting chain assembly for boat handling is operated by a first drive motor. The first drive motor drives the bidirectional lead screw to rotate through the first rotating shaft, thereby driving the two threaded blocks and the two vertical plates to move towards each other. The relative positions of the two second rotating shafts and the two electric push rods can be adjusted, so that it can be used for winding rollers of different lengths.

[0016] 2. The winding device of the lifting chain assembly for boat handling is operated by a second drive motor, which can drive the winding roller to rotate and lift the boat. Through the operation of the electric push rod and with the help of the pin shaft movable rod, multiple sets of arc plates can be driven to expand outward, expand and fix the inner wall of the winding roller, and facilitate the maintenance and replacement of the winding roller. Attached Figure Description

[0017] Figure 1 This is a top view sectional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0019] Figure 3 This is a front view structural diagram of the present invention;

[0020] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Plate; 2. Groove; 3. First bearing; 4. First shaft; 5. First drive motor; 6. First housing; 7. Two-way lead screw; 8. First slider; 9. Threaded block; 10. Slide groove; 11. Chain; 12. Frame; 13. Counterweight; 14. Hook lock; 15. Handle; 16. Anti-slip sleeve; 17. Mounting frame; 18. Mounting hole; 19. Through groove; 20. Second slider; 21. Vertical plate; 22. Second bearing; 23. Second shaft; 24. Second drive motor; 25. Second housing; 26. Movable plate; 27. Arc plate; 28. Protective pad; 29. ​​Take-up roller; 30. Electric push rod. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example

[0024] Please see Figures 1 to 4This utility model provides a technical solution, including a plate body 1 and two sets of take-up rollers 29. A groove 2 is formed inside the plate body 1. The groove 2 is a fully enclosed structure. First bearings 3 are fixedly connected to the opposite inner walls of the groove 2. First rotating shafts 4 are rotatably connected to the two first bearings 3. The opposite ends of the two first rotating shafts 4 are fixedly connected to the same bidirectional lead screw 7. Threaded blocks 9 are threadedly connected to the surface of the bidirectional lead screw 7, and there are two threaded blocks 9. A first housing 6 is fixedly connected to one side of the plate body. A first drive motor 5 is fixedly connected inside the first housing 6. The other end of the output shaft of the first drive motor 5 is fixedly connected to the other end of the first rotating shaft 4. A through groove 19 is formed at the bottom of the groove 2. Second sliders 20 are slidably connected within the through groove 19, and there are two sets of second sliders 20. The bottoms of the two threaded blocks 9 are respectively fixedly connected to the two sets of second sliders. At the top of the two sets of second sliders 20, the bottom of each set of second sliders 20 is fixedly connected to a vertical plate 21. A second bearing 22 is fixedly inserted on one side of each set of vertical plates 21. A second rotating shaft 23 is rotatably connected inside each set of second bearings 22. An electric push rod 30 is fixedly connected to the opposite end of each set of second rotating shafts 23. The conveying end and output end of the electric push rod 30 are movably connected to the surface of the second rotating shaft 23 by a pin, and multiple sets of movable rods are movably connected to the other end of the movable rod by a pin. An arc plate 27 is set on the inner wall of the take-up roller 29. A second housing 25 is fixedly connected to one side of one vertical plate 21. A second drive motor 24 is fixedly connected inside the second housing 25. The other end of the output shaft of the second drive motor 24 is fixedly connected to the other end of the second rotating shaft 23. Two sets of chains 11 are fixedly wound around the surface of the take-up roller 29.

[0025] Specifically, the first drive motor 5 operates, driving the bidirectional lead screw 7 to rotate via the first rotating shaft 4. This causes the two threaded blocks 9 and the two vertical plates 21 to move towards each other, adjusting the relative positions of the two second rotating shafts 23 and the two electric push rods 30. This allows it to be used with take-up rollers 29 of different lengths. The second drive motor 24 operates, driving the take-up roller 29 to rotate, which can be used to lift boats. The electric push rods 30 operate, and with the help of the pin shaft movable rod, can drive multiple sets of arc plates 27 to expand outward, expanding and fixing the inner wall of the take-up roller 29, facilitating the maintenance and replacement of the take-up roller 29.

[0026] Please refer to Figure 1 to Figure 4 Both sides of the inner wall of the groove 2 are provided with sliding grooves 10, and a first slider 8 is slidably connected in the sliding groove 10. The first slider 8 is fixedly connected to one side of the threaded block 9.

[0027] Specifically, by opening the groove 10, the sliding action of the first slider 8 within the groove 10 not only makes the threaded block 9 slide more smoothly, but also limits the movement of the threaded block 9.

[0028] Please refer to Figure 1 to Figure 4 The other ends of the two sets of chains 11 are fixedly connected to the same frame 12. A counterweight block 13 is set inside the frame 12, and a hook lock 14 is set at the bottom of the frame 12.

[0029] Specifically, by setting a tethering condition, a certain tension is provided when the hook lock 14 is wound up in an unloaded state to prevent knotting and tangling during winding.

[0030] Please refer to Figure 1 to Figure 4 Handles 15 are fixedly connected to both sides of the plate 1, and anti-slip sleeves 16 are fixedly connected to the surface of the handles 15. The top of the multiple sets of curved plates 27 is provided with pads 28, which are made of rubber. Mounting frames 17 are fixedly connected to the top of the plate 1 near both sides, and mounting holes 18 are opened on the top of the two sets of mounting frames 17.

[0031] Specifically, by setting the anti-slip sleeve 16, the friction between the hand and the handle 15 can be increased, making the handling more stable. By setting the protective pad 28, the friction between the arc plate 27 and the inner wall of the winding roller 29 can be increased, preventing it from falling off. By setting the mounting bracket and mounting hole 18, the plate 1 and the device can be installed and fixed.

[0032] In use, the device is fixed to a crane or transport vehicle frame or other equipment using bolts through the mounting frame 17 and mounting holes 18 on the top of the plate 1 to ensure a firm installation. According to the length of the take-up roller 29, the first drive motor 5 is started, which drives the upright plate 21 to move laterally through the bidirectional lead screw 7. The two sets of electric push rods 30 are inserted into the inside of the take-up roller 29. The electric push rods 30 are then started, which drives the arc plate 27 to expand outward through the movable rod. The rubber pads 28 are used to clamp the inner wall of the take-up roller 29 to complete the fixation. Then, the second drive motor 24 is operated, which drives the take-up roller 29 to rotate and perform lifting work. When installing or removing the take-up tube, the bidirectional lead screw 7 and electric push rods 30 are driven to move the two upright plates 21 toward each other and the arc plate 27 to retract, so that the take-up roller 29 can be replaced or removed.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A winding device for a lifting chain assembly specifically for boat handling, comprising a plate (1) and a winding roller (29), characterized in that: The plate (1) has a groove (2) inside. The groove (2) is a fully enclosed structure. The inner walls of the groove (2) are fixedly connected to the first bearings (3). The two first bearings (3) are rotatably connected to the first shafts (4). The two first shafts (4) are fixedly connected to the same double-acting screw (7) at their opposite ends. The surface of the double-acting screw (7) is threaded with threaded blocks (9). There are two threaded blocks (9). The plate is fixedly connected to one side of the plate. The first housing (6) is fixedly connected to the first housing (6). The first drive motor (5) is fixedly connected to the first housing (6). The other end of the output shaft of the first drive motor (5) is fixedly connected to the other end of the first shaft (4). The bottom of the groove (2) has a through groove (19). The through groove (19) is slidably connected to the second slider (20). There are two sets of the second slider (20). The bottoms of the two threaded blocks (9) are fixedly connected to the tops of the two sets of second sliders (20). The bottoms of the two sets of second sliders (20) are fixedly connected to the vertical plates (21). A second bearing (22) is fixedly inserted on one side of each of the two sets of upright plates (21). A second rotating shaft (23) is rotatably connected inside each of the two sets of second bearings (22). An electric push rod (30) is fixedly connected to the opposite end of each of the two sets of second rotating shafts (23). The conveying end and output end of the electric push rod (30) are movably connected to the surface of the second rotating shaft (23) by a pin. A set of movable rods are movably connected to the other end of the movable rod by a pin. An arc plate (27) is set on the inner wall of the take-up roller (29). A second housing (25) is fixedly connected to one side of one of the upright plates (21). A second drive motor (24) is fixedly connected inside the second housing (25). The other end of the output shaft of the second drive motor (24) is fixedly connected to the other end of the second rotating shaft (23). Two sets of chains (11) are fixedly wound around the surface of the take-up roller (29).

2. The winding device for a lifting chain assembly specifically for boat handling according to claim 1, characterized in that: The inner wall of the groove (2) has sliding grooves (10) on both sides. A first slider (8) is slidably connected in the sliding groove (10). The first slider (8) is fixedly connected to one side of the threaded block (9).

3. The winding device for a lifting chain assembly specifically for boat handling according to claim 1, characterized in that: The other ends of the two sets of chains (11) are fixedly connected to the same frame (12), a counterweight (13) is provided inside the frame (12), and a hook lock (14) is provided at the bottom of the frame (12).

4. The winding device for a lifting chain assembly specifically for boat handling according to claim 1, characterized in that: Handles (15) are fixedly connected to both sides of the plate (1), and anti-slip sleeves (16) are fixedly connected to the surface of the handles (15).

5. A winding device for a lifting chain assembly specifically for boat handling according to claim 1, characterized in that: Each of the multiple sets of the arc-shaped plates (27) is provided with a protective pad (28) on its top, and the protective pad (28) is made of rubber.

6. A winding device for a lifting chain assembly specifically for boat handling according to claim 1, characterized in that: Mounting frames (17) are fixedly connected to the top of the plate (1) near both sides, and mounting holes (18) are opened on the top of both sets of mounting frames (17).