A marine protection device hoisting device

CN224337083UActive Publication Date: 2026-06-09NANTONG YUANHANG SHIP ACCESSORIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG YUANHANG SHIP ACCESSORIES CO LTD
Filing Date
2025-08-13
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing marine protective equipment hoisting devices are prone to collision damage under complex conditions of ship swaying, and are inconvenient to operate, posing safety risks, and cannot achieve precise height and position adjustments.

Method used

The design combines lifting and moving components. The rotation of the lifting screw and moving screw is controlled by a dual-axis motor and a translation motor, enabling precise adjustment of the height and position of the hoisting components. The use of wire ropes and pulleys simplifies the operation process.

Benefits of technology

It enables precise adjustment of the height and position of hoisting equipment in complex environments, reduces the intensity of manual operation, improves hoisting efficiency and safety, and enhances the versatility and applicability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a lifting device for marine protective equipment, relating to the field of marine equipment lifting. It includes a base plate, with a lifting assembly fixedly connected to the upper end of the base plate. A movable assembly is fixedly connected to the upper end of the lifting assembly. The lifting assembly includes lifting rods on both sides of the upper bottom, each lifting rod having a lifting groove on its inner side. A lifting screw is rotatably connected inside the lifting groove. This utility model, using the above structure, allows for precise height adjustment through threaded engagement, meeting the accurate height requirements of equipment in different lifting scenarios. Adjustment can be completed simply by controlling a dual-axis motor, eliminating the need for complex manual operation, saving labor costs. It can also operate stably in complex environments such as ship swaying. The flexible height adjustment capability allows the lifting assembly to adapt to the lifting needs of protective equipment at different heights, enhancing the device's versatility.
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Description

Technical Field

[0001] This utility model belongs to the field of marine equipment hoisting, and specifically relates to a hoisting device for marine protective equipment. Background Technology

[0002] During ship operation and maintenance, the installation, inspection and replacement of marine protective equipment all require hoisting operations. Currently, such hoisting work mostly relies on manual labor in conjunction with simple lifting tools, which is not only inefficient, but also prone to damage due to uneven force distribution under complex conditions of ship swaying, and may even pose safety risks to operators.

[0003] Chinese Patent No. CN216583907U discloses a lifting device for ship hulls. The key technical features include: a column, a boom, a forearm, a traction mechanism, a control mechanism, a connecting mechanism, and a lifting device. The column is fixedly mounted on the ship hull. The boom is rotatably connected to the column, and the forearm is rotatably connected to the boom. The control mechanism is used for the movement of the boom and forearm. The traction mechanism is mounted on the forearm and is used to control the lifting and lowering of the lifting device. The connecting mechanism connects the lifting device and the traction mechanism. This application simplifies the process of changing the lifting device's lifting device.

[0004] As can be seen from the above structure, by rotating the bidirectional screw, the first connecting plate and the second connecting plate are brought closer to each other. Then, the connection between the connecting chain and the first and second connecting plates is canceled, and finally the connection between the first and second connecting plates is canceled, thus achieving the removal of the lifting device from the traction mechanism. However, the above device is not convenient for stable lifting and lowering adjustment as needed, which can easily lead to poor lifting height. It is also not convenient for stable lateral movement adjustment, and the practical effect is not good. Therefore, we propose a ship lifting device. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a marine protective equipment hoisting device to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A marine protective equipment hoisting device includes a base plate. A lifting assembly is fixedly connected to the upper end of the base plate, and a moving assembly is fixedly connected to the upper end of the lifting assembly. The lifting assembly includes lifting rods on both sides of the upper end of the base plate. Each lifting rod has a lifting groove on its inner side. A lifting screw is rotatably connected inside the lifting groove. Threaded parts are threaded onto the outer surface of each lifting screw. A support plate is fixedly connected to the inner side of each threaded part. An installation rod is fixedly connected to the upper end of the support plate. A hoisting assembly is provided inside the installation rod. A driven bevel gear is fixedly connected to the other end of the lifting screw.

[0008] As a preferred technical solution, the hoisting assembly includes a hoisting groove formed inside the mounting rod, a take-up roller is rotatably connected inside the hoisting groove, a steel wire rope is wound around the outer surface of the take-up roller, a pulley is fixedly connected to the lower end of the moving assembly, a lifting ring is fixedly connected to the upper end of the steel wire rope passing through the pulley, a hoisting motor is fixedly connected to the outer side of the mounting rod, and the output end of the hoisting motor is fixedly connected to the take-up roller.

[0009] As a preferred technical solution, a fixing through hole is provided at the upper corner of the base plate, and a fixing screw is inserted into the fixing through hole. The fixing screw is threadedly connected to the base layer through the fixing through hole.

[0010] As a preferred technical solution, the moving component includes a translation rod disposed inside the mounting rod, a translation groove is provided at the lower end of the translation rod, a translation screw is rotatably connected inside the translation groove, a moving part is threadedly connected to the outer surface of the translation screw, the lower end of the moving part is fixedly connected to a pulley, and a translation motor is fixedly connected to the other end of the translation rod, the output shaft of the translation motor is fixedly connected to the translation screw.

[0011] As a preferred technical solution, the inner side of the lifting assembly is fixedly connected with a support rod, and the opposite side of the support rod is fixedly connected with a support connecting rod. The other end of the support connecting rod is fixedly connected to both sides of the moving assembly.

[0012] As a preferred technical solution, a dual-axis motor is fixedly connected to the upper end of the base plate, and an installation groove is provided on the opposite side of the lifting rod. A drive bevel gear is rotatably connected inside the installation groove. The output shaft of the dual-axis motor is fixedly connected to the drive bevel gear, and the driven bevel gear is rotatably connected inside the installation groove. The drive bevel gear and the driven bevel gear are meshed with each other.

[0013] As a preferred technical solution, a limiting plate is fixedly connected to the back of the support plate, a limiting hole is formed on the surface of the limiting plate, and a limiting rod is fixedly connected to the upper end of the base plate, with the limiting rod and the limiting hole slidingly inserted into each other.

[0014] In summary, the present invention has the following main advantages:

[0015] First, by controlling the rotation of the dual-axis motor, the active bevel gear is driven to rotate, which in turn drives the driven bevel gear to rotate. The rotation of the driven bevel gear drives the lifting screw to rotate, and the rotation of the lifting screw causes the threaded parts to move the support plate and the mounting rod upward. Thus, the height of the lifting assembly can be adjusted by the movement of the threaded parts. The threaded engagement allows for precise height adjustment, meeting the accurate height requirements of the equipment in different lifting scenarios. The adjustment can be completed by controlling only the dual-axis motor, without complicated manual operation, saving labor costs. It can also operate stably in complex environments such as ship swaying. The flexible height adjustment capability allows the lifting assembly to adapt to the lifting needs of protective equipment at different height positions, enhancing the versatility of the device.

[0016] Secondly, by controlling the translation motor to drive the translation screw to rotate, the rotation of the translation screw causes the threaded moving part to move, which in turn drives the pulley to move. This allows for convenient adjustment of the lifting position during use. The horizontal adjustment of the lifting position can be achieved simply by controlling the translation motor, making operation simple and convenient, eliminating the need for manual pushing, and reducing the labor intensity of operators. The threaded engagement between the translation screw and the moving part enables precise control of the translation distance, ensuring the accuracy of the lifting position. At the same time, it can be flexibly adjusted according to the installation position of different protective equipment and the spatial layout of the ship's deck to meet diverse lifting position requirements and enhance the applicability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the lifting assembly of this utility model;

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

[0020] Figure 4 This is a structural schematic diagram of the mobile component of this utility model.

[0021] Reference numerals: 1. Base plate; 2. Lifting assembly; 21. Lifting rod; 22. Lifting groove; 23. Lifting screw; 24. Threaded part; 25. Support plate; 26. Mounting rod; 27. Dual-axis motor; 28. Mounting groove; 29. ​​Driving bevel gear; 30. Driven bevel gear; 3. Moving assembly; 31. Translation rod; 32. Translation groove; 33. Translation screw; 34. Moving part; 35. Translation motor; 4. Lifting assembly; 41. Lifting groove; 42. Rewinding roller; 43. Lifting motor; 44. Wire rope; 45. Pulley; 46. Lifting ring; 5. Supporting diagonal rod; 6. Supporting connecting rod; 7. Fixing through hole; 8. Fixing screw; 9. Limiting plate; 10. Limiting rod; 11. Limiting hole. Detailed Implementation

[0022] Example

[0023] refer to Figures 1 to 4 This embodiment of a marine protective equipment hoisting device includes a base plate 1. A lifting assembly 2 is fixedly connected to the upper end of the base plate 1, and a moving assembly 3 is fixedly connected to the upper end of the lifting assembly 2. The lifting assembly 2 includes lifting rods 21 disposed on both sides of the upper end of the base plate 1. Each lifting rod 21 has a lifting groove 22 on its inner side. A lifting screw 23 is rotatably connected inside the lifting groove 22. Threaded parts 24 are threadedly connected to the outer surface of each lifting screw 23. Support plates 25 are fixedly connected to the inner side of each threaded part 24. An installation rod 26 is fixedly connected to the upper end of the support plate 25. A hoisting assembly 4 is disposed on the inner side of the installation rod 26. The other end of the screw 23 is fixedly connected to the driven bevel gear 30. Fixed through holes 7 are provided at the upper corner of the base plate 1. Fixed screws 8 are inserted into the fixed through holes 7. The fixed screws 8 are threaded through the fixed through holes 7 and connected to the base layer. The upper end of the base plate 1 is fixedly connected to the dual-axis motor 27. The opposite side of the lifting rod 21 is provided with the mounting groove 28. The drive bevel gear 29 is rotatably connected inside the mounting groove 28. The output shaft of the dual-axis motor 27 is fixedly connected to the drive bevel gear 29. The driven bevel gear 30 is rotatably connected inside the mounting groove 28. The drive bevel gear 29 and the driven bevel gear 30 are meshed with each other.

[0024] refer to Figure 1 , Figure 3 and Figure 4The lifting assembly 4 includes a lifting slot 41 formed inside the mounting rod 26. A take-up roller 42 is rotatably connected inside the lifting slot 41, and a wire rope 44 is wound around the outer surface of the take-up roller 42. A pulley 45 is fixedly connected to the lower end of the moving assembly 3, and a lifting ring 46 is fixedly connected to the upper end of the wire rope 44 through the pulley 45. A lifting motor 43 is fixedly connected to the outer side of the mounting rod 26, and the output end of the lifting motor 43 is fixedly connected to the take-up roller 42. When a lifting operation is required, the lifting ring 46 on the outer side of the mounting rod 26... When the motor 43 is started, its output end directly drives the winding roller 42, which is located in the lifting groove 41 inside the mounting rod 26, to rotate. As the winding roller 42 rotates forward or backward, the wire rope 44 wrapped around its outer surface will be wound up or released accordingly. One end of the wire rope 44 passes through the pulley 45 fixedly connected to the lower end of the moving component 3, and the other end is fixedly connected to the lifting ring 46. When the wire rope 44 is wound up, the lifting ring 46 will move upward under the action of tension, thereby realizing the lifting of the equipment hanging on the lifting ring 46.

[0025] refer to Figures 1-4 The movable component 3 includes a translation rod 31 disposed inside the mounting rod 26. A translation groove 32 is provided at the lower end of the translation rod 31. A translation screw 33 is rotatably connected inside the translation groove 32. A movable part 34 is threadedly connected to the outer surface of the translation screw 33. The lower end of the movable part 34 is fixedly connected to the pulley 45. A translation motor 35 is fixedly connected to the other end of the translation rod 31. The output shaft of the translation motor 35 is fixedly connected to the translation screw 33. By controlling the translation motor 35 to drive the translation screw 33 to rotate, the movable part 34 threadedly connected to it can move under the rotation of the translation screw 33. Thus, the movement of the movable part 34 can drive the pulley 45 to move, thereby facilitating the adjustment of the hoisting position during use.

[0026] refer to Figure 1 The inner side of the lifting component 2 is fixedly connected with a support rod 5, and the opposite side of the support rod 5 is fixedly connected with a support connecting rod 6. The other end of the support connecting rod 6 is fixedly connected to both sides of the moving component 3. The support connecting rod 6 and the support rod 5 can support the extended moving component 3, thereby avoiding the situation where the lifting weight is too large when the moving component 3 extends to the farthest end, resulting in poor stability of the device.

[0027] refer to Figure 3 A limiting plate 9 is fixedly connected to the back of the support plate 25. A limiting hole 11 is opened on the surface of the limiting plate 9. A limiting rod 10 is fixedly connected to the upper end of the base plate 1. The limiting rod 10 and the limiting hole 11 are slidably inserted into each other. The limiting rod 10 and the limiting plate 9 can limit the support plate 25, so that the support plate 25 slides more stably during use.

[0028] Operating principle and advantages: First, by placing the device in a suitable position, and then adjusting the lifting ring 46 to the appropriate position, the dual-axis motor 27 is controlled to rotate, driving the active bevel gear 29 to rotate, which in turn drives the driven bevel gear 30. The rotation of the driven bevel gear 30 drives the lifting screw 23 to rotate. The rotation of the lifting screw 23 causes the threaded component 24 to move the support plate 25 and the mounting rod 26 upwards. This movement of the threaded component 24 allows for adjustment of the height of the lifting assembly 4. Then, by controlling the translation motor 35 to rotate the translation screw 33, the threadedly connected moving component 34 moves. This movement of the moving component 34 drives the pulley 45 to move, allowing for convenient adjustment of the lifting position during use. Then, the lifting ring 46 can be connected to the protective equipment. During the lifting operation, the lifting motor 43 on the outside of the mounting rod 26 is started, and its output end directly drives the winding roller 42, which is opened in the lifting groove 41 on the inside of the mounting rod 26, to rotate. As the winding roller 42 rotates forward or backward, the wire rope 44 wrapped around its outer surface will be wound or released accordingly. One end of the wire rope 44 passes through the pulley 45 fixedly connected to the lower end of the moving component 3, and the other end is fixedly connected to the lifting ring 46. When the wire rope 44 is wound, the lifting ring 46 will move upward under the action of tension, thereby realizing the lifting of the equipment hanging on the lifting ring 46. When the wire rope 44 is released, the lifting ring 46 will move downward under the action of the equipment's gravity, completing the lowering of the equipment. The lifting operation of the marine protective equipment is realized through this process.

Claims

1. A marine protection device hoisting arrangement, characterized by: The system includes a base plate (1), a lifting assembly (2) fixedly connected to the upper end of the base plate (1), a moving assembly (3) fixedly connected to the upper end of the lifting assembly (2), the lifting assembly (2) including lifting rods (21) arranged on both sides of the upper end of the base plate (1), the inner side of the lifting rods (21) is provided with lifting grooves (22), the inside of the lifting grooves (22) is rotatably connected with lifting screws (23), the outer surface of the lifting screws (23) is threaded with threaded parts (24), the inner side of the threaded parts (24) is fixedly connected with support plates (25), the upper end of the support plates (25) is fixedly connected with mounting rods (26), the inner side of the mounting rods (26) is provided with hoisting assemblies (4), and the other end of the lifting screws (23) is fixedly connected with driven bevel gears (30).

2. A marine shield handling device according to claim 1, characterised in that: The hoisting assembly (4) includes a hoisting groove (41) opened inside the mounting rod (26). A take-up roller (42) is rotatably connected inside the hoisting groove (41). A wire rope (44) is wound around the outer surface of the take-up roller (42). A pulley (45) is fixedly connected to the lower end of the moving assembly (3). A lifting ring (46) is fixedly connected to the upper end of the wire rope (44) passing through the pulley (45). A hoisting motor (43) is fixedly connected to the outer side of the mounting rod (26). The output end of the hoisting motor (43) is fixedly connected to the take-up roller (42).

3. A marine shield hoist apparatus according to claim 1, wherein: Fixed through holes (7) are provided at the upper corners of the base plate (1). Fixed screws (8) are inserted into the fixed through holes (7), and the fixed screws (8) are threadedly connected to the base layer through the fixed through holes (7).

4. A marine shield hoist apparatus according to claim 1, wherein: The moving component (3) includes a translation rod (31) disposed inside the mounting rod (26). The lower end of the translation rod (31) is provided with a translation groove (32). A translation screw (33) is rotatably connected inside the translation groove (32). A moving part (34) is threadedly connected to the outer surface of the translation screw (33). The lower end of the moving part (34) is fixedly connected to a pulley (45). The other end of the translation rod (31) is fixedly connected to a translation motor (35). The output shaft of the translation motor (35) is fixedly connected to the translation screw (33).

5. A marine shelter hoist as claimed in claim 1, wherein: The inner side of the lifting assembly (2) is fixedly connected with a support rod (5), and the opposite side of the support rod (5) is fixedly connected with a support connecting rod (6). The other end of the support connecting rod (6) is fixedly connected to both sides of the moving assembly (3).

6. A marine shelter hoist as claimed in claim 1, wherein: A dual-axis motor (27) is fixedly connected to the upper end of the base plate (1). An installation groove (28) is provided on the opposite side of the lifting rod (21). An active bevel gear (29) is rotatably connected inside the installation groove (28). The output shaft of the dual-axis motor (27) is fixedly connected to the active bevel gear (29). The driven bevel gear (30) is rotatably connected inside the installation groove (28). The active bevel gear (29) and the driven bevel gear (30) are meshed with each other.

7. A marine shield hoist apparatus according to claim 1, wherein: The back surface of the support plate (25) is fixedly connected with a limiting plate (9), the surface of the limiting plate (9) is provided with a limiting hole (11), and the upper end of the bottom plate (1) is fixedly connected with a limiting rod (10) which is slidably inserted into the limiting hole (11).