Manual lifting device of winch

Abstract

The utility model belongs to the technical field of winches, and relates to a manual lifting device of a winch, which is characterized in that the top surface of a bottom plate is fixedly connected with two vertically arranged side plates, the inner sides of the two side plates are rotatably connected with a winch, and the outer side of one side plate is fixedly connected with a housing; one end of the winch penetrates through the middle of the side plate, a main gear is fixedly connected to one side of the winch and located in the housing, a first gear is engaged to the bottom of the main gear, a second gear is engaged to one side of the first gear, a rocker is fixedly connected to the middle of the second gear, and the rocker and the first gear are rotationally connected to the bottom of the outer side of the side plate; a power-assisted motor is fixedly connected to the bottom of one side of the inner wall of the housing, a third gear is fixedly connected to the output end of the power-assisted motor, a fourth gear is fixedly connected to the middle of the rocker, and the third gear and the fourth gear are in meshed connection; the middle of one side of the rocker is rotationally connected to one side of the bottom of the housing, and the tail end of the rocker is located outside the housing. A fixing assembly is arranged in the middle of the outer wall of the housing.

Description

Technical Field

[0001] This utility model belongs to the field of winch technology and relates to a manual lifting device for winches. Background Technology

[0002] Manual winch lifting devices are very useful in a variety of situations, mainly for lifting, pulling or positioning heavy objects. On construction sites, manual winches are often used to lift building materials, tools and other equipment to the required height. In industrial environments, they are used to move heavy machinery, equipment parts or other heavy objects. And because of their portability, they are also widely used in many other fields.

[0003] The existing manual lifting device for winches simply relies on manual rotation to lift the items. Therefore, after long-term use, the number of manual rotations required by the workers will be too many. Furthermore, the fact that the existing manual lifting device for winches relies solely on manual rotation leads to a high level of work intensity. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a manual lifting device for winches, which solves the problem that existing manual lifting devices for winches rely solely on manual rotation to lift items, thus leading to high work intensity during prolonged use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A manual lifting device for a winch includes a base plate. Two vertically arranged side plates are fixedly connected to the top surface of the base plate. A winch is rotatably connected to the inner side of each side plate. A cover is fixedly connected to the outer side of one of the side plates. One end of the winch passes through the middle of the side plate. A main gear is fixedly connected to one side of the winch and is located inside the cover. A first gear is meshed with the bottom of the main gear, and a second gear is meshed with one side of the first gear. A rocker arm is fixedly connected to the middle of the second gear. The rocker arm and the first gear are both rotatably connected to the bottom of the outer side of the side plate. An auxiliary motor is fixedly connected to the bottom of one side of the inner wall of the cover. A third gear is fixedly connected to the output end of the auxiliary motor. A fourth gear is fixedly connected to the middle of the rocker arm, and the third and fourth gears mesh with each other. The middle of one side of the rocker arm is rotatably connected to one side of the bottom of the cover, and the tail end of the rocker arm is located outside the cover. A fixing assembly is provided in the middle of the outer wall of the cover.

[0007] Preferably, the tail end of the rocker arm is rotatably connected to a handle, the outer wall of the side plate is fixedly connected to a reinforcing plate, and the bottom of the reinforcing plate is fixedly connected to the top surface of the base plate.

[0008] Preferably, the fixing assembly includes a pull rod, a plug rod, and a spring; the bottom of the pull rod is rotatably connected to the middle of one side of the outer wall of the housing, the upper middle part of the pull rod is rotatably connected to one end of the plug rod, the middle part of the plug rod is located on the upper part of one side of the housing, the other end of the plug rod is located on one side of the main gear, one side of the spring is fixedly connected to the middle of the pull rod, and the other side of the spring is fixedly connected to the middle of one side of the outer wall of the housing.

[0009] Preferably, a plurality of slots are provided on the outer side of the middle part of one side of the main gear, and one end of the insertion rod is located inside one of the slots.

[0010] Preferably, an ear plate is fixedly connected to the middle of one side of the outer wall of the cover, and a support rod is fixedly connected to the bottom of the pull rod, with the support rod rotatably connected to the middle of the ear plate.

[0011] Preferably, a first connecting seat is fixedly connected to the upper middle part of one side of the pull rod, and a locking rod is fixedly connected to one end of the insertion rod, with the locking rod rotatably connected to the middle of the first connecting seat.

[0012] Preferably, a mounting hole is provided on the top of one side of the outer wall of the cover, and the middle part of the insertion rod is located inside the mounting hole.

[0013] Preferably, a limiting hole is formed in the middle of the insertion rod, and a limiting rod is fixedly connected inside the mounting hole, with the limiting rod located inside the limiting hole.

[0014] Preferably, the width of the mounting hole is greater than the width of the insertion rod.

[0015] Working Principle: During operation, the base plate serves as the foundation of the entire device, bearing the weight of all components. The side plates are fixedly connected to the top surface of the base plate, and one side of the winch is rotatably connected to the side plate. When the steel cable needs to be wound up, first pull the top of the lever to move the insert rod away from the main gear. Then, rotate the handle to rotate the rocker arm. The rocker arm drives the second gear to rotate, which in turn drives the first gear. Therefore, the rotation of the first gear causes the main gear to rotate, thus rotating the winch and enabling the winding and unwinding of the steel cable. Furthermore, when the rocker arm rotates the winch, the gear ratios of the main gear, first gear, and second gear allow for precise control of the rocker arm's rotation. When rotating, it achieves the purpose of saving effort. When rotating the winch, the assist motor can be started, which drives the third gear to rotate, and the third gear drives the fourth gear to rotate. In this way, the first gear can be used to assist the rotation of the rocker arm, thereby achieving the effect of saving effort. Furthermore, a fixing component is set in the middle of the outer wall of the casing. The fixing component mainly includes a pull rod, a plug rod, and a spring. Therefore, when it is necessary to fix the winch, the pull rod is released. At this time, the spring can pull the pull rod back, so that the plug rod is close to the main gear and inserted into the slot. At this time, the plug rod can be used to lock the main gear, thereby preventing the winch from rotating back and releasing the steel cable, thus improving the safety of use.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model allows the winch to rotate by rotating the rocker arm, which can then retract the steel cable to lift the equipment. Furthermore, the gear ratio between the main gear, the first gear, and the gears facilitates manual rotation by the operator. Simultaneously, the drive motor can rotate the third gear, thereby assisting in the rotation of the rocker arm. This avoids the increased workload caused by manually rotating the rocker arm too many times.

[0018] 2. This utility model uses the elastic force of the spring to bring the pull rod close to the cover. At this time, the pull rod can drive the insertion rod close to the main gear. When one end of the insertion rod enters the slot on one side of the main gear, the insertion rod can be used to lock the main gear, thereby preventing the winch from rotating and causing the steel cable to be released, thus improving the practicality of this device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is an exploded view of the casing structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the main gear part of this utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0023] Figure 5 This is an exploded view of the insert rod portion of this utility model;

[0024] Figure 6 for Figure 5 Enlarged view of point B in the image.

[0025] In the diagram: 1. Base plate; 2. Side plate; 3. Winch; 4. Cover; 5. Main gear; 6. First gear; 7. Second gear; 8. Rocker arm; 9. Power motor; 10. Third gear; 11. Fourth gear; 12. Handle; 13. Reinforcing plate; 14. Pull rod; 15. Insert rod; 16. Slot; 17. Ear plate; 18. Support rod; 19. First connecting seat; 20. Locking rod; 21. Mounting hole; 22. Limiting rod; 23. Limiting hole; 24. Spring. Detailed Implementation

[0026] The specific embodiments of this utility model are further described below with reference to the accompanying drawings and technical solutions.

[0027] Please see Figures 2-4 This utility model provides a manual lifting device for a winch, including a base plate 1. Two vertically arranged side plates 2 are fixedly connected to the top surface of the base plate 1. A winch 3 is rotatably connected to the inner side of the two side plates 2. A cover 4 is fixedly connected to the outer side of one of the side plates 2. One end of the winch 3 passes through the middle of the side plate 2. A main gear 5 is fixedly connected to one side of the winch 3. The main gear 5 is located inside the cover 4. A first gear 6 is meshed with the bottom of the main gear 5. A second gear 7 is meshed with one side of the first gear 6. The middle of the second gear 7 is fixed... A rocker arm 8 is connected, and both the rocker arm 8 and the first gear 6 are rotatably connected to the bottom of the outer side of the side plate 2; an auxiliary motor 9 is fixedly connected to the bottom of one side of the inner wall of the cover 4, and a third gear 10 is fixedly connected to the output end of the auxiliary motor 9; a fourth gear 11 is fixedly connected to the middle of the rocker arm 8, and the third gear 10 and the fourth gear 11 are meshed together; the middle of one side of the rocker arm 8 is rotatably connected to one side of the bottom of the cover 4, and the tail end of the rocker arm 8 is located outside the cover 4; a fixing component is provided in the middle of the outer wall of the cover 4.

[0028] The base plate 1 serves as the foundation of the entire device, supporting and fixing other components. Two vertically arranged side plates 2 are fixedly connected to the top surface of the base plate 1. A winch 3 is rotatably connected to the inner side of each side plate 2. The winch 3 is the core component of the hoisting device, lifting and lowering items by winding steel wire ropes. A cover 4 is fixedly connected to the outer side of one of the side plates 2, protecting internal components and preventing external debris from entering. One end of the winch 3 passes through the middle of the side plate 2, and the other end is connected to the main gear 5. The main gear (5) is located inside the cover 4. A first gear 6 is meshed with the bottom of the main gear 5, and a second gear 6 is meshed with one side of the first gear 6. Gear 7, this multi-layered gear structure can effectively reduce the lifting speed. The middle of the second gear 7 is fixedly connected to the rocker arm 8. The rocker arm 8 and the first gear 6 are rotatably connected to the bottom of the outer side of one of the side plates 2. The bottom of one side of the inner wall of the cover 4 is fixedly connected to the assist motor 9. The output end of the assist motor 9 is fixedly connected to the third gear 10. The middle of the rocker arm 8 is fixedly connected to the fourth gear 11. The third gear 10 and the fourth gear 11 are meshed together. Therefore, the assist motor 9 can be used to assist the rotation of the rocker arm 8. This can avoid the phenomenon of workers having to manually crank the rocker arm 8 many times when lifting the equipment, which would increase the workload.

[0029] Please see Figure 1 A handle 12 is rotatably connected to the tail end of the rocker arm 8, and a reinforcing plate 13 is fixedly connected to the outer wall of the side plate 2. The bottom of the reinforcing plate 13 is fixedly connected to the top surface of the base plate 1. The handle 12 facilitates the rotation of the rocker arm 8, and the reinforcing plate 13 improves the structural strength between the side plate 2 and the base plate 1, thereby enhancing the stability of the equipment.

[0030] Please see Figures 5-6 The fixing assembly includes a pull rod 14, a plug rod 15, and a spring 24. The bottom of the pull rod 14 is rotatably connected to the middle of one side of the outer wall of the housing 4, and the upper middle part of the pull rod 14 is rotatably connected to one end of the plug rod 15. The middle part of the plug rod 15 is located on the upper side of one side of the housing 4, and the other end of the plug rod 15 is located on one side of the main gear 5. One side of the spring 24 is fixedly connected to the middle of the pull rod 14, and the other side of the spring 24 is fixedly connected to the middle of one side of the outer wall of the housing 4. Multiple slots 16 are provided on the outer side of the middle part of one side of the main gear 5, and one end of the plug rod 15 is located inside one of the slots 16. The elastic force of the spring 24 can bring the pull rod 14 closer to the housing 4. At this time, the pull rod 14 can drive the plug rod 15 closer to the main gear 5. When one end of the plug rod 15 enters the slot 16 on one side of the main gear 5, the plug rod 15 can be used to lock the main gear 5, thereby preventing the winch 3 from rotating and causing the steel cable to be released, thus improving the safety of the device.

[0031] Please see Figures 5-6An ear plate 17 is fixedly connected to the middle of one side of the outer wall of the casing 4. A support rod 18 is fixedly connected to the bottom of the pull rod 14, and the support rod 18 is rotatably connected to the middle of the ear plate 17. A first connecting seat 19 is fixedly connected to the upper middle part of one side of the pull rod 14. A locking rod 20 is fixedly connected to one end of the insertion rod 15, and the locking rod 20 is rotatably connected to the middle of the first connecting seat 19. The branch rod 18 can be installed through the ear plate 17, and the locking rod 20 can be installed through the first connecting seat 19.

[0032] Please see Figures 5-6 A mounting hole 21 is provided on the top of one side of the outer wall of the casing 4, and the middle part of the insertion rod 15 is located inside the mounting hole 21. A limiting hole 23 is provided in the middle of the insertion rod 15, and a limiting rod 22 is fixedly connected inside the mounting hole 21, with the limiting rod 22 located inside the limiting hole 23. The width of the mounting hole 21 is greater than the width of the insertion rod 15. The limiting hole 23 provides room for the insertion rod 15 to move, and since the limiting hole 23 is provided in the middle of the insertion rod 15, the movement direction of the insertion rod 15 can be guided by the limiting hole 23 and the limiting rod 22.

Claims

1. A manual lifting device for a winch, comprising a base plate (1), characterized in that, Two vertically arranged side plates (2) are fixedly connected to the top surface of the base plate (1). A winch (3) is rotatably connected to the inner side of the two side plates (2). A cover (4) is fixedly connected to the outer side of one of the side plates (2). One end of the winch (3) passes through the middle of the side plate (2). A main gear (5) is fixedly connected to one side of the winch (3). The main gear (5) is located inside the cover (4). A first gear (6) is meshed with the bottom of the main gear (5). A second gear (7) is meshed with one side of the first gear (6). A rocker arm (8) is fixedly connected to the middle of the second gear (7). The rocker arm (8) and the first gear (6) are rotatably connected to the bottom of the outer side of the side plate (2); an assist motor (9) is fixedly connected to the bottom of one side of the inner wall of the cover (4), and a third gear (10) is fixedly connected to the output end of the assist motor (9); a fourth gear (11) is fixedly connected to the middle of the rocker arm (8), and the third gear (10) and the fourth gear (11) are meshed together; the middle of one side of the rocker arm (8) is rotatably connected to one side of the bottom of the cover (4), and the tail end of the rocker arm (8) is located outside the cover (4); a fixing component is provided in the middle of the outer wall of the cover (4).

2. The manual lifting device for a winch according to claim 1, characterized in that, The end of the rocker arm (8) is rotatably connected to a handle (12); the outer wall of the side plate (2) is fixedly connected to a reinforcing plate (13), and the bottom of the reinforcing plate (13) is fixedly connected to the top surface of the base plate (1).

3. The manual lifting device for a winch according to claim 1, characterized in that, The fixing assembly includes a pull rod (14), a plug rod (15), and a spring (24); the bottom of the pull rod (14) is rotatably connected to the middle of one side of the outer wall of the cover (4), the upper middle part of the pull rod (14) is rotatably connected to one end of the plug rod (15), the middle part of the plug rod (15) is located on the upper part of one side of the cover (4), the other end of the plug rod (15) is located on one side of the main gear (5), one side of the spring (24) is fixedly connected to the middle of the pull rod (14), and the other side of the spring (24) is fixedly connected to the middle of one side of the outer wall of the cover (4).

4. A manual lifting device for a winch according to claim 3, characterized in that, Multiple slots (16) are provided on the outer side of the middle part of one side of the main gear (5), and one end of the insert rod (15) is located inside one of the slots (16).

5. A manual lifting device for a winch according to claim 4, characterized in that, An ear plate (17) is fixedly connected to the middle of one side of the outer wall of the cover (4), and a support rod (18) is fixedly connected to the bottom of the pull rod (14). The support rod (18) is rotatably connected to the middle of the ear plate (17).

6. A manual lifting device for a winch according to claim 5, characterized in that, A first connecting seat (19) is fixedly connected to the upper middle part of one side of the pull rod (14), and a locking rod (20) is fixedly connected to one end of the insert rod (15). The locking rod (20) is rotatably connected to the middle part of the first connecting seat (19).

7. A manual lifting device for a winch according to claim 6, characterized in that, The top of one side of the outer wall of the cover (4) is provided with a mounting hole (21), and the middle part of the insertion rod (15) is located inside the mounting hole (21).

8. A manual lifting device for a winch according to claim 7, characterized in that, A limiting hole (23) is provided in the middle of the insertion rod (15), and a limiting rod (22) is fixedly connected inside the mounting hole (21). The limiting rod (22) is located inside the limiting hole (23).

9. A manual lifting device for a winch according to claim 7, characterized in that, The width of the mounting hole (21) is greater than the width of the insert (15).

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