Pneumatic mooring winch for ship
By designing a pneumatic mooring winch for ships that includes a pneumatic motor and adjustment components, the safety hazards caused by loose strands have been solved, and the stable winding and safe transport of strands have been achieved, thereby improving the safety of ships and the reliability of equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HAIJI ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-17
AI Technical Summary
When using existing pneumatic mooring winches for ships, loose strands may suddenly unravel, leading to safety accidents and personal injury. Furthermore, during navigation, they may become entangled in propellers or other propulsion equipment, causing equipment damage.
A pneumatic mooring winch for ships was designed, comprising a pneumatic motor, a winch body, auxiliary components, and adjustment components. The motor drives a two-way lead screw and a guide sleeve threaded adjustment structure, combined with an elastic structure and a movable rod, to achieve stable winding and conveying of the stranded wire. The clamping adjustment of the auxiliary rollers ensures the stability of the stranded wire.
It achieves stable winding and unwinding of the strands, avoids the threat of loose strands to crew and equipment, ensures the safe operation of the ship, and reduces the risk of accidents.
Smart Images

Figure CN224132468U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic mooring winch technology, specifically a pneumatic mooring winch for ships. Background Technology
[0002] A pneumatic mooring winch is a mechanical device powered by compressed air for mooring and towing cables. Widely used in shipbuilding, ports, and marine engineering, it mainly consists of a pneumatic motor, a reduction gear, a drum, and a control system. The pneumatic motor converts the energy of compressed air into mechanical energy, providing power for the winch's operation. The reduction gear reduces the rotational speed and increases the torque, ensuring stable and powerful cable handling. This type of winch offers significant advantages. Pneumatic drive eliminates the need for complex electrical systems, allowing for safe and reliable operation in harsh environments such as humid and flammable conditions. Operationally, it offers rapid response, quickly retrieving and releasing cables, improving work efficiency. Its relatively simple structure facilitates maintenance and reduces operating costs. Furthermore, the pneumatic mooring winch allows for flexible adjustment of the speed and force of cable handling to meet the requirements of different scenarios, providing an efficient and convenient cable handling solution for various water operations.
[0003] In existing pneumatic mooring winches for ships, loose strands may suddenly unravel during use, posing a threat to surrounding crew and equipment. If the strands unexpectedly unravel during ship navigation, they may become entangled in the propeller or other propulsion equipment, causing damage to the ship's power system or even leading to serious safety accidents. At the same time, unraveling strands may also trip crew members, causing injury or death. Therefore, we need a pneumatic mooring winch for ships. Utility Model Content
[0004] The purpose of this invention is to provide a pneumatic mooring winch for ships to solve the existing problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic mooring winch for ships, comprising a pneumatic motor, the output end of which is fixedly connected to a winch body, an auxiliary component being provided on one side of the winch body, and an adjustment component being provided on the top of the auxiliary component; the adjustment component includes a motor, which is fixedly mounted on the top of the pneumatic motor, the output end of which is fixedly connected to a bidirectional lead screw, a guide sleeve being threadedly connected to the outer wall of the bidirectional lead screw, a second spring being fixedly connected to one side of the guide sleeve, a movable rod being movably connected to the bottom of the guide sleeve, a fixed shell being movably provided at the bottom of the movable rod, and a pressing roller being provided inside the fixed shell.
[0006] Preferably, the motor forms a threaded adjustment structure with a bidirectional lead screw and a guide sleeve, and the outer diameter of the bidirectional lead screw matches the inner diameter of the guide sleeve, and the outer wall of the bidirectional lead screw fits against the inner wall of the guide sleeve.
[0007] Preferably, the bidirectional lead screw forms an elastic structure with the second spring through a guide sleeve, and one side of the guide sleeve is connected to one side of the second spring.
[0008] Preferably, the guide sleeve forms a movable structure with the fixed shell via a movable rod, and the movable rod is disposed between the guide sleeve and the fixed shell.
[0009] Preferably, the auxiliary component includes a limiting rod, which is fixed to one side of the pneumatic motor. An installation sleeve is fixedly connected to the outer wall of the limiting rod, and a positioning plate is fixedly connected to the bottom of the installation sleeve. A support sleeve is slidably connected to the positioning plate. A positioning groove is provided inside the support sleeve, and a first spring is provided inside the positioning groove. An auxiliary roller is provided on one side of the support sleeve.
[0010] Preferably, the support sleeve forms an elastic structure with the positioning plate via a first spring, and the first spring is disposed between the support sleeve and the positioning plate.
[0011] Preferably, the support sleeve forms a sliding structure with the positioning plate through the positioning groove, and the inner diameter of the positioning groove matches the outer diameter of the positioning plate, and the inner wall of the positioning groove is fitted to the outer wall of the positioning plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are: this pneumatic mooring winch for ships,
[0013] (1) By starting the motor, the motor can drive the bidirectional lead screw to rotate, the bidirectional lead screw can rotate in the guide sleeve, the guide sleeve can be supported by the second spring, the movable rod can be moved, the movable rod can drive the fixed shell to move, and the fixed shell can rely on the pressing roller to assist in winding and conveying the cable on the winch body.
[0014] (2) The pneumatic motor can drive the winch body to unwind and rewind. Under the clamping of the two auxiliary rollers, the auxiliary rollers can be supported by the support sleeve and the first spring can be used to adjust the positioning plate in the positioning groove inside the support sleeve. This allows the spacing between the auxiliary rollers to be adjusted, so that the auxiliary rollers can always assist in clamping and conveying the cable, meeting people's daily needs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0016] Figure 2 This is a schematic diagram of the adjustment component structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the limiting rod and mounting sleeve structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the support sleeve and the first spring structure of this utility model.
[0019] In the diagram: 1. Pneumatic motor; 2. Winch body; 3. Auxiliary components; 301. Limiting rod; 302. Mounting sleeve; 303. Positioning plate; 304. Support sleeve; 305. Positioning groove; 306. First spring; 307. Auxiliary roller; 4. Adjusting components; 401. Motor; 402. Bidirectional lead screw; 403. Guide sleeve; 404. Second spring; 405. Movable rod; 406. Fixed shell; 407. Pressing roller. Detailed Implementation
[0020] 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.
[0021] This utility model embodiment provides a pneumatic mooring winch for ships, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a pneumatic motor 1, with a winch body 2 fixedly connected to the output end of the pneumatic motor 1. An auxiliary component 3 is provided on one side of the winch body 2, and an adjustment component 4 is provided on the top of the auxiliary component 3. The adjustment component 4 includes a motor 401, which is fixedly mounted on the top of the pneumatic motor 1. A bidirectional lead screw 402 is fixedly connected to the output end of the motor 401, and a guide sleeve 403 is threadedly connected to the outer wall of the bidirectional lead screw 402. The motor 401 forms a threaded adjustment structure through the bidirectional lead screw 402 and the guide sleeve 403, and the outer diameter of the bidirectional lead screw 402 is... The inner diameter of the guide sleeve 403 is matched, and the outer wall of the double-acting screw 402 is fitted to the inner wall of the guide sleeve 403, which enhances the connection between the motor 401 and the double-acting screw 402. This allows the motor 401 to drive the double-acting screw 402 to rotate within the guide sleeve 403. A second spring 404 is fixedly connected to one side of the guide sleeve 403. The double-acting screw 402 and the second spring 404 form an elastic structure through the guide sleeve 403, and one side of the guide sleeve 403 is connected to one side of the second spring 404, strengthening the connection between the double-acting screw 402 and the guide sleeve 403. The connection effect of 03 allows the guide sleeve 403 to move stably under the support of the second spring 404. A movable rod 405 is movably connected to the bottom of the guide sleeve 403, and a fixed shell 406 is movably disposed at the bottom of the movable rod 405. A pressing roller 407 is disposed inside the fixed shell 406. The guide sleeve 403 and the fixed shell 406 form a movable structure through the movable rod 405, and the movable rod 405 is positioned between the guide sleeve 403 and the fixed shell 406, strengthening the connection effect between the guide sleeve 403 and the movable rod 405, thus ensuring stable movement of the guide sleeve 403 during movement. When in motion, the movable rod 405 can drive the fixed housing 406 to move. By starting the motor 401, the motor 401 can drive the bidirectional lead screw 402 to rotate, which can rotate within the guide sleeve 403. Under the support of the second spring 404, the guide sleeve 403 can push the movable rod 405 to move, which can drive the fixed housing 406 to move. The fixed housing 406 can then use the pressing roller 407 to assist in winding and conveying the cable on the winch body 2.
[0022] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the auxiliary component 3 includes a limiting rod 301, which is fixed to one side of the pneumatic motor 1. An mounting sleeve 302 is fixedly connected to the outer wall of the limiting rod 301. A positioning plate 303 is fixedly connected to the bottom of the mounting sleeve 302. A support sleeve 304 is slidably connected to the positioning plate 303. A positioning groove 305 is provided inside the support sleeve 304, and a first spring 306 is installed inside the positioning groove 305. The support sleeve 304 and the positioning plate 303 form an elastic structure through the first spring 306. The first spring 306 is positioned between the support sleeve 304 and the positioning plate 303, allowing the support sleeve 304 to support the positioning plate 303. An auxiliary roller 307 is provided on one side of the support sleeve 304. The support sleeve 304 and the positioning plate 303 form a sliding structure through the positioning groove 305. Furthermore, the inner diameter of the positioning groove 305 matches the outer diameter of the positioning plate 303, and the inner wall of the positioning groove 305 fits snugly against the outer wall of the positioning plate 303, enhancing the connection between the support sleeve 304 and the positioning plate 303. This allows the positioning plate 303 to slide within the support sleeve 304 via the positioning groove 305. The pneumatic motor 1 can drive the winch body 2 to unwind and rewind. Under the clamping of the two auxiliary rollers 307, and supported by the support sleeve 304 and the first spring 306, the positioning plate 303 can be adjusted within the positioning groove 305 of the support sleeve 304. This allows for adjustment of the spacing between the auxiliary rollers 307, ensuring that the auxiliary rollers 307 can always assist in clamping and conveying the cable, meeting the needs of daily use.
[0023] Working Principle: During use, the pneumatic motor 1 drives the winch body 2 to unwind and rewind. With the two auxiliary rollers 307 clamped together, and supported by the support sleeve 304 and the first spring 306, the positioning plate 303 can be adjusted within the positioning groove 305 of the support sleeve 304. This allows for adjustment of the spacing between the auxiliary rollers 307, ensuring they consistently provide auxiliary clamping and conveying of the cable, meeting daily usage needs. Furthermore, starting the motor 401 drives the bidirectional lead screw 402 to rotate within the guide sleeve 403. Supported by the second spring 404, the guide sleeve 403 pushes the movable rod 405, which in turn moves the fixed housing 406. The fixed housing 406 then uses the pressing roller 407 to assist in winding and conveying the cable on the winch body 2.
[0024] 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 pneumatic mooring winch for a marine vessel comprising a pneumatic motor (1), characterized in that: The output end of the pneumatic motor (1) is fixedly connected to the winch body (2), and an auxiliary component (3) is provided on one side of the winch body (2). An adjustment component (4) is provided on the top of the auxiliary component (3). The adjustment assembly (4) includes a motor (401), and the motor (401) is fixed on the top of the pneumatic motor (1). The output end of the motor (401) is fixedly connected to a bidirectional lead screw (402). The outer wall of the bidirectional lead screw (402) is threadedly connected to a guide sleeve (403). A second spring (404) is fixedly connected to one side of the guide sleeve (403). A movable rod (405) is movably connected to the bottom of the guide sleeve (403). A fixed shell (406) is movably provided at the bottom of the movable rod (405). A pressing roller (407) is provided inside the fixed shell (406).
2. A pneumatic mooring winch for a marine vessel as claimed in claim 1, characterised in that: The motor (401) forms a threaded adjustment structure with a double-acting screw (402) and a guide sleeve (403), and the outer diameter of the double-acting screw (402) matches the inner diameter of the guide sleeve (403), and the outer wall of the double-acting screw (402) is fitted to the inner wall of the guide sleeve (403).
3. A pneumatic mooring winch for a marine vessel as claimed in claim 1, wherein: The bidirectional lead screw (402) forms an elastic structure with the second spring (404) through the guide sleeve (403), and one side of the guide sleeve (403) is connected to one side of the second spring (404).
4. A pneumatic mooring winch for a marine vessel as claimed in claim 1, wherein: The guide sleeve (403) forms a movable structure with the fixed shell (406) through the movable rod (405), and the movable rod (405) is disposed between the guide sleeve (403) and the fixed shell (406).
5. A pneumatic mooring winch for a marine vessel as claimed in claim 1, wherein: The auxiliary component (3) includes a limiting rod (301), which is fixed to one side of the pneumatic motor (1). An installation sleeve (302) is fixedly connected to the outer wall of the limiting rod (301). A positioning plate (303) is fixedly connected to the bottom of the installation sleeve (302). A support sleeve (304) is slidably connected to the positioning plate (303). A positioning groove (305) is provided inside the support sleeve (304). A first spring (306) is provided inside the positioning groove (305). An auxiliary roller (307) is provided on one side of the support sleeve (304).
6. A pneumatic mooring winch for a marine vessel as claimed in claim 5 wherein: The support sleeve (304) forms an elastic structure with the positioning plate (303) through the first spring (306), and the first spring (306) is disposed between the support sleeve (304) and the positioning plate (303).
7. A pneumatic mooring winch for a marine vessel as claimed in claim 5 wherein: The support sleeve (304) forms a sliding structure with the positioning plate (303) through the positioning groove (305), and the inner diameter of the positioning groove (305) matches the outer diameter of the positioning plate (303), and the inner wall of the positioning groove (305) is fitted to the outer wall of the positioning plate (303).