Marine winch

By introducing locking discs and clamp structures into marine winches, the risk of slewing when the winch is stationary is solved, enabling stable winding and unwinding of ropes or chains, and improving the convenience and safety of operation.

CN224547955UActive Publication Date: 2026-07-24JIANGSU ZHONGTAI OFFSHORE EQUIPMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU ZHONGTAI OFFSHORE EQUIPMENT CO LTD
Filing Date
2025-09-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing marine winches lack a locking mechanism when stationary, posing a risk of slewing.

Method used

A marine winch comprising a bracket, a motor, a linkage shaft, a first winch, a rotating disc, a locking disc, and a handle is designed. The locking disc is switched between a first state and a second state by driving the handle, so that the first locking part and the second locking part cooperate to lock the rotating disc. The rotating disc is clamped by the upper clamp and the lower clamp to achieve locking.

Benefits of technology

It effectively prevents winch rotation, is easy to operate, and ensures stable winding and unwinding of ropes or chains.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224547955U_ABST
    Figure CN224547955U_ABST
Patent Text Reader

Abstract

The utility model discloses a marine winch, including support, motor, linkage shaft, first capstan, rotary disc, locking disc and handle, the motor is installed and is fixed in support, linkage shaft is connected in the output of motor, first capstan is connected in linkage shaft, rotary disc fixed connection is in linkage shaft, and rotary disc has first locking portion, locking disc is covered in linkage shaft outer circumferential side, and locking disc has second locking portion, handle is connected in locking disc, and handle is used for driving locking disc switches in first state and second state, when being in first state, first locking portion cooperates with second locking portion to lock rotary disc, when being in second state, first locking portion is separated from second locking portion. When first capstan winds up the rope or the chain, through pushing handle, makes first locking portion cooperate with second locking portion to lock rotary disc, prevents the first capstan from happening to return.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of marine equipment technology, and in particular to a marine winch. Background Technology

[0002] A winch, also known as a hoist, is a versatile, compact, small, lightweight, high-lifting, and easy-to-use and move product. It is used in marine equipment and is usually installed on the main deck at the bow and stern of a ship for use when the ship weighs anchor and moors. It is an important component of marine equipment. However, existing technologies lack a locking mechanism for anchor sprockets when stationary, posing a risk of rotation. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a marine winch, comprising a support frame, a motor, a linkage shaft, a first winch, a rotating disc, a locking disc, and a handle; the motor is mounted and fixed to the support frame; the linkage shaft is connected to the output end of the motor; the first winch is connected to the linkage shaft; the rotating disc is fixedly connected to the linkage shaft, and the rotating disc has a first locking part; the locking disc is sleeved on the outer periphery of the linkage shaft, and the locking disc has a second locking part; the handle is connected to the locking disc, and the handle is used to drive the locking disc to switch between a first state and a second state; in the first state, the first locking part cooperates with the second locking part to lock the rotating disc; in the second state, the first locking part disengages from the second locking part.

[0004] Furthermore, the first locking part is a groove, and the second locking part is a protrusion that matches the shape of the groove, or the first locking part is a protrusion, and the second locking part is a groove that matches the shape of the protrusion.

[0005] Furthermore, there are multiple first locking parts, which are arranged at intervals along the circumference of the rotating disk.

[0006] Furthermore, it also includes an upper clamp, a lower clamp, a connecting rod, a connector, and a screw. The upper clamp is hinged to the lower clamp, and the upper clamp and the lower clamp together form a placement space. The rotating disk is located in the placement space. The connecting rod rotatably connects the lower clamp and the bracket. One end of the connector is hinged to the lower clamp, and the other end of the connector is fixedly connected to the screw. The screw is threadedly connected to the upper clamp.

[0007] Furthermore, it also includes a second winch, with the first winch connected to one end of the linkage shaft and the second winch connected to the other end of the linkage shaft.

[0008] Furthermore, there are two rotating discs, one of which is located on the side of the linkage shaft near the first winch, and the other of which is located on the side of the linkage shaft near the second winch. There are also two locking discs, one of which is located on the side of the linkage shaft near the first winch, and the other of which is located on the side of the linkage shaft near the second winch.

[0009] Furthermore, the first winch includes a drum, a first baffle, and a second baffle, with the first baffle fixedly connected to one end of the drum and the second baffle fixedly connected to the other end of the drum.

[0010] Furthermore, the bracket includes a base, a first fixing frame, and a second fixing frame, wherein the first fixing frame is fixedly connected to one end of the base, and the second fixing frame is fixedly connected to the other end of the base.

[0011] Furthermore, it also includes a first bearing and a second bearing, wherein the inner ring of the first bearing is connected to the linkage shaft, the outer ring of the first bearing is connected to the first fixed frame, the inner ring of the second bearing is connected to the linkage shaft, and the outer ring of the second bearing is connected to the second fixed frame.

[0012] Furthermore, it also includes a speed reducer, the input end of which is connected to the output end of the motor, and the output end of which is connected to the linkage shaft.

[0013] The beneficial effects of this utility model are as follows: 1. In this utility model, after the first winch has finished winding the rope or chain, pushing the handle causes the first locking part to engage with the second locking part to lock the rotating disc, preventing the first winch from rotating backward. When unlocking is required, simply reverse the handle; the operation is convenient.

[0014] 2. In this utility model, the upper clamp and the lower clamp can be tightly gripped by rotating the screw. Since the upper clamp is connected to the bracket, the rotating disk can be further locked under the action of clamping force to prevent the first winch from rotating. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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, wherein: Figure 1 This is a structural schematic diagram of the marine winch provided by this utility model.

[0016] Figure 2 This is an exploded view of the structure of the marine winch provided by this utility model.

[0017] Figure 3 This is a cross-sectional view of the marine winch provided by this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the rotating disk and locking disk provided by this utility model.

[0019] Figure 5 This is a schematic diagram of the upper and lower clamps provided by this utility model.

[0020] Figure 6 This is a schematic diagram of the connection structure between the handle and the locking disc provided by this utility model.

[0021] In the diagram: 1. Bracket; 2. Motor; 3. Linkage shaft; 4. First winch; 5. Rotating disc; 6. Locking disc; 7. Handle; 9. Second winch; 10. Reducer; 11. Base; 12. First fixed frame; 13. Second fixed frame; 14. First bearing; 15. Second bearing; 41. Drum; 42. First baffle; 43. Second baffle; 51. First locking part; 61. Second locking part; 81. Upper clamp; 82. Lower clamp; 83. Connecting rod; 84. Connecting piece; 85. Screw. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other. For ease of description, the words "upper," "lower," "left," and "right" appearing below only indicate that they are consistent with the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure.

[0023] like Figures 1 to 6As shown, this utility model proposes a marine winch, including a bracket 1, a motor 2, a linkage shaft 3, a first winch 4, a rotating disc 5, a locking disc 6, and a handle 7; the motor 2 is mounted and fixed to the bracket 1; the linkage shaft 3 is connected to the output end of the motor 2; the first winch 4 is connected to the linkage shaft 3; the rotating disc 5 is fixedly connected to the linkage shaft 3, and the rotating disc 5 has a first locking part 51; the locking disc 6 is sleeved on the outer periphery of the linkage shaft 3, and the locking disc 6 has a second locking part 61; the handle 7 is connected to the locking disc 6, and the handle 7 is used to drive the locking disc 6 to switch between a first state and a second state; in the first state, the first locking part 51 and the second locking part 61 cooperate to lock the rotating disc 5; in the second state, the first locking part 51 disengages from the second locking part 61. Specifically, the handle 7 includes a rotating rod 71 and a clamping rod 72. The rotating rod 71 is rotatably connected to the bracket 1, and one end of the clamping rod 72 is fixedly connected to the locking disc 6. The clamping rod 72 supports the locking disc 6, preventing it from contacting the linkage shaft and thus avoiding interference with the rotation of the linkage shaft 3. The other end of the clamping rod 72 is fixedly connected to the rotating rod 71. Rotating the rotating rod 71 causes the clamping rod 72 to push the locking disc 6 to move axially along the linkage shaft 3. Furthermore, the rotating disc 5 and the linkage shaft 3 are fixedly connected by a key. That is, the linkage shaft 3 has a connecting key, and the corresponding position on the rotating disc 5 has a keyway. The connecting key and the keyway are engaged to fix the rotating disc 5 on the linkage shaft 3. Further, mounting holes can be made on the rotating rod 71, and corresponding connecting holes can be made on the bracket 1. Bolts pass through the mounting holes and connecting holes to achieve a tight connection between the rotating rod 71 and the bracket 1, further preventing the rotating rod 71 from rotating after locking.

[0024] In use, the first winch 4 is used to wind ropes or chains. One end of the rope or chain is fixedly connected to the first winch 4. The motor 2 drives the linkage shaft 3 to rotate, thereby driving the first winch 4 to rotate, thus winding the rope or chain onto the first winch 4. In the second state, the rotating disc 5 can rotate together with the linkage shaft 3. When it is necessary to lock the first winch 4, the locking disc 6 is moved by turning the handle 7, so that the first locking part 51 and the second locking part 61 are engaged to limit the rotation of the rotating disc 5, thus putting the marine winch in the first state.

[0025] In one embodiment, the first locking part 51 is a groove, and the second locking part 61 is a protrusion that matches the shape of the groove; or the first locking part 51 is a protrusion, and the second locking part 61 is a groove that matches the shape of the protrusion. Specifically, the groove is preferably a trapezoidal groove, and the protrusion is preferably a trapezoidal protrusion, with the hypotenuse of the trapezoid parallel to the radial direction of the rotating disk 5.

[0026] In one embodiment, there are multiple first locking parts 51, which are arranged at intervals along the circumference of the rotating disk 5. By providing multiple first locking parts 51 in cooperation with multiple second locking parts 61, the locking effect on the rotating disk 5 is further improved.

[0027] In one embodiment, the system further includes an upper clamp 81, a lower clamp 82, a connecting rod 83, a connecting member 84, and a screw 85. The upper clamp 81 is hinged to the lower clamp 82, and the upper clamp 81 and the lower clamp 82 together form a placement space. The rotating disk 5 is disposed within the placement space. The connecting rod 83 rotatably connects the lower clamp 82 and the bracket 1. One end of the connecting member 84 is hinged to the lower clamp 82, and the other end of the connecting member 84 is fixedly connected to the screw 85. The screw 85 is threadedly connected to the upper clamp 81. Specifically, by rotating the screw 85, the upper clamp 81 and the lower clamp 82 are brought closer together, thereby allowing the upper clamp 81 and the lower clamp 82 to securely clamp the rotating disk 5. Since the lower clamp 82 is connected to the bracket 1 through the connecting rod 83, and the bracket 1 is fixed, the rotating disk 5 can be locked by the clamping action of the upper clamp 81 and the lower clamp 82. Furthermore, rubber sheets can be provided on the inner surfaces of the upper clamp 81 and the lower clamp 82 to further enhance the friction between the contact surfaces of the upper clamp 81, the lower clamp 82 and the rotating disk 5, thereby improving the clamping and fastening effect of the upper clamp 81 and the lower clamp 82.

[0028] In one embodiment, a second winch 4 is also included, with the first winch 4 connected to one end of the linkage shaft 3 and the second winch 4 connected to the other end of the linkage shaft 3. Specifically, the first winch 4 and the second winch 4 can be driven simultaneously through the same motor and linkage shaft 3 to improve work efficiency.

[0029] In one embodiment, there are two rotating discs 5, one of which is located on the side of the linkage shaft 3 near the first winch 4, and the other of which is located on the side of the linkage shaft 3 near the first winch 4. There are also two locking discs 6, one of which is located on the side of the linkage shaft 3 near the second winch 9, and the other of which is located on the side of the linkage shaft 3 near the second winch 9. By using identical rotating discs 5 and locking discs 6, locking and unlocking of the second winch 9 can be achieved.

[0030] In one embodiment, the first winch 4 includes a drum 41, a first baffle 42, and a second baffle 43. The first baffle 42 is fixedly connected to one end of the drum 41, and the second baffle 43 is fixedly connected to the other end of the drum 41. The first baffle 42 and the second baffle 43 are used to restrain the rope or chain wound on the drum 41 to prevent the rope or chain from detaching from the drum 41.

[0031] In one embodiment, the bracket 1 includes a base 11, a first fixing frame 12 and a second fixing frame 13, wherein the first fixing frame 12 is fixedly connected to one end of the base 11 and the second fixing frame 13 is fixedly connected to the other end of the base 11.

[0032] In one embodiment, the system further includes a first bearing 14 and a second bearing 15. The inner ring of the first bearing 14 is connected to the linkage shaft 3, and the outer ring of the first bearing 14 is connected to the first fixed frame 12. The inner ring of the second bearing 15 is connected to the linkage shaft 3, and the outer ring of the second bearing 15 is connected to the second fixed frame 13. The first bearing 14 and the second bearing 15 enable a rotatable connection between the linkage shaft 3 and the bracket 1.

[0033] In one embodiment, a speed reducer 10 is also included, with the input end of the speed reducer 10 connected to the output end of the motor 2 and the output end of the speed reducer 10 connected to the linkage shaft 3.

[0034] In this embodiment, after the first winch 4 and the second winch 9 have finished winding the rope or chain, the first locking part 51 and the second locking part 61 are engaged by pushing the handle 7 to lock the rotating disk 5. At the same time, the upper clamp 81 and the lower clamp 82 can be tightened by rotating the screw 85. Since the upper clamp 81 is connected to the bracket, the rotating disk 5 can be further locked under the action of clamping force to prevent the first winch 4 and the second winch 9 from rotating.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A marine winch, characterized in that, include: support; The motor is mounted and fixed to the bracket; A linkage shaft is connected to the output end of the motor; The first winch is connected to the linkage shaft; A rotating disk is fixedly connected to the linkage shaft, and the rotating disk has a first locking part; A locking disc is sleeved on the outer periphery of the linkage shaft, and the locking disc has a second locking part; A handle is connected to the locking disc, and the handle is used to drive the locking disc to switch between a first state and a second state; in the first state, the first locking part cooperates with the second locking part to lock the rotating disc; in the second state, the first locking part disengages from the second locking part.

2. A marine winch according to claim 1, characterized in that: The first locking part is a groove, and the second locking part is a protrusion that matches the shape of the groove, or the first locking part is a protrusion and the second locking part is a groove that matches the shape of the protrusion.

3. A marine winch according to claim 2, characterized in that: There are multiple first locking parts, and the multiple first locking parts are arranged at intervals along the circumference of the rotating disk.

4. A marine winch according to claim 1, characterized in that: It also includes an upper clamp, a lower clamp, a connecting rod, a connector, and a screw. The upper clamp is hinged to the lower clamp, and the upper clamp and the lower clamp together form a placement space. The rotating disk is located in the placement space. The connecting rod rotatably connects the lower clamp and the bracket. One end of the connector is hinged to the lower clamp, and the other end of the connector is fixedly connected to the screw. The screw is threadedly connected to the upper clamp.

5. A marine winch according to claim 1, characterized in that, It also includes a second winch, with the first winch connected to one end of the linkage shaft and the second winch connected to the other end of the linkage shaft.

6. A marine winch according to claim 5, characterized in that: There are two rotating discs, one of which is located on the side of the linkage shaft near the first winch, and the other of which is located on the side of the linkage shaft near the second winch. There are two locking discs, one of which is located on the side of the linkage shaft near the first winch, and the other of which is located on the side of the linkage shaft near the second winch.

7. A marine winch according to claim 1, characterized in that: The first winch includes a drum, a first baffle and a second baffle. The first baffle is fixedly connected to one end of the drum and the second baffle is fixedly connected to the other end of the drum.

8. A marine winch according to claim 1, characterized in that, The bracket includes a base, a first fixing frame, and a second fixing frame. The first fixing frame is fixedly connected to one end of the base, and the second fixing frame is fixedly connected to the other end of the base.

9. A marine winch according to claim 8, characterized in that, It also includes a first bearing and a second bearing, wherein the inner ring of the first bearing is connected to the linkage shaft, the outer ring of the first bearing is connected to the first fixed frame, the inner ring of the second bearing is connected to the linkage shaft, and the outer ring of the second bearing is connected to the second fixed frame.

10. A marine winch according to claim 1, characterized in that, It also includes a speed reducer, the input end of which is connected to the output end of the motor, and the output end of which is connected to the linkage shaft.