Hoisting device
By designing counterweight and rotating components, and combining them with a locking and motor-driven wire rope system, the problems of high center of gravity and inaccurate positioning of the hoisting device were solved, thus improving stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SHAGANG STEEL CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-05-26
AI Technical Summary
Existing hoisting equipment has a high center of gravity, making it prone to swaying or imbalance, with weak anti-tipping ability. It is also prone to tipping over during vibration and bumps, and positioning accuracy is difficult to guarantee.
The center of gravity is lowered by using a counterweight assembly, the counterweight is fixed by a locking assembly, the angle is precisely adjusted by a rotating assembly, and stable hoisting is achieved by combining a motor and a wire rope.
It improves the stability and safety of the hoisting equipment, enhances its anti-tipping ability, and ensures the accuracy and safety of the operation positioning.
Smart Images
Figure CN224279602U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting equipment technology, and in particular to a hoisting device. Background Technology
[0002] Lifting operations are extremely common and indispensable in many fields such as modern industrial production, construction, and logistics, undertaking the tasks of lifting, moving, and installing various heavy objects. Especially in scenarios such as the installation of heavy equipment and the hoisting of high-rise building components, the performance of lifting equipment directly affects the construction progress and operational safety. Existing lifting equipment cannot lower the overall center of gravity. A high center of gravity makes the equipment prone to swaying or imbalance, exacerbating risks, weakening its anti-tipping ability, and reducing stability. Moreover, it is susceptible to vibration and bumps during lifting operations, leading to counterweight imbalance and causing equipment to tip over, reducing operational safety. During the lifting process, the support arm is prone to unexpected rotation due to external forces or the inertia of the heavy object, making it difficult to guarantee the accuracy of positioning. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hoisting device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a hoisting device, comprising a base box and a support arm, wherein a rotating component for improving the positioning accuracy of the operation is connected to the top of the base box, a locking component for improving the safety of the operation is connected to the outside of the base box, and a counterweight component for improving stability is connected to the inside of the base box;
[0005] The counterweight assembly includes a support plate that slides inside a base box. A guide groove is provided at the bottom of the base box, and a guide plate is slidably connected inside the guide groove. The top of the guide plate is fixedly connected to the bottom of the support plate. Multiple sets of counterweights are connected to the top of the support plate, and a baffle is fixedly connected to the front end of the support plate.
[0006] As a further description of the above technical solution:
[0007] The locking assembly includes a locking plate, a connecting block is fixedly connected to one side of the locking plate, a guide hole is provided inside the connecting block, a guide rod is slidably connected inside the guide hole, one end of the guide rod is fixedly connected to the outside of the base box, a limit groove is provided inside the locking plate, a limit plate is slidably connected inside the limit groove, and one end of the limit plate is rotatably connected to the side of the baffle.
[0008] As a further description of the above technical solution:
[0009] The rotating assembly includes a fixed box, the bottom of which is fixedly connected to the top of the base box. A worm gear is rotatably connected inside the fixed box, with both ends of the worm gear rotating inside the fixed box. One end of the worm gear passes through the fixed box and is fixedly connected to a throttle handle. A worm wheel is meshed with one side of the worm gear, and a fixed post is fixedly connected to the top of the worm wheel. One end of the fixed post passes through the top of the fixed box and is fixedly connected to a fixed plate. The fixed plate is fixedly connected to the bottom of the support arm, and the fixed post rotates inside the fixed box.
[0010] As a further description of the above technical solution:
[0011] The rear end of the support arm is fixedly connected to a fixed frame. A motor is fixedly installed on the outside of the fixed frame by bolts. An electromagnetic brake is connected to the outside of the output shaft of the motor. A drum is fixedly connected to the output shaft of the motor through the fixed frame. One end of the drum rotates inside the fixed frame. A wire rope is connected to the outside of the drum.
[0012] As a further description of the above technical solution:
[0013] The front end of the support arm is fixedly connected to a mounting frame, and a boom is fixedly installed inside the mounting frame by bolts. A guide wheel is rotatably connected to one end of the boom.
[0014] As a further description of the above technical solution:
[0015] A connecting frame is fixedly connected to the top of the support arm, and a guide wheel is rotatably connected inside the connecting frame. Limit pins are slidably connected inside both the connecting frame and the top of the boom.
[0016] As a further description of the above technical solution:
[0017] One end of the wire rope passes through guide wheel two and is fixedly connected to guide wheel one with a hook.
[0018] As a further description of the above technical solution:
[0019] The bottom of the base box is equipped with multiple sets of universal wheels with brakes.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the counterweight component can lower the overall center of gravity, thereby reducing the risk of swaying or imbalance caused by a high center of gravity, enhancing the anti-tipping ability of the device, and improving the stability of the hoisting device.
[0022] 2. In this utility model, the counterweight can be firmly locked in the base box by the locking assembly, which prevents the support plate from sliding out due to vibration and bumps during hoisting operations, prevents the equipment from tipping over due to counterweight imbalance, and improves the operational safety of the hoisting device.
[0023] 3. In this utility model, the rotation angle can be precisely locked by the self-locking characteristics of the rotating component, the worm and the worm wheel, which avoids accidental rotation caused by external force or the inertia of the heavy object during the hoisting process and improves the operation positioning accuracy of the hoisting device. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of a hoisting device proposed in this utility model. Figure 1 ;
[0025] Figure 2 This is a schematic diagram of the overall structure of a hoisting device proposed in this utility model. Figure 2 ;
[0026] Figure 3 This is a partial structural schematic diagram of a hoisting device proposed in this utility model;
[0027] Figure 4 This is a sectional view of a hoisting device proposed in this utility model;
[0028] Figure 5 for Figure 2 Enlarged structural diagram of part A.
[0029] Legend:
[0030] 1. Base box; 2. Support arm; 3. Counterweight assembly; 4. Support plate; 5. Guide groove; 6. Guide plate; 7. Baffle; 8. Counterweight block; 9. Locking assembly; 10. Locking plate; 11. Connecting block; 12. Guide hole; 13. Guide rod; 15. Limiting groove; 16. Limiting plate; 17. Rotating assembly; 18. Fixed box; 19. Worm gear; 20. Throttle; 21. Worm wheel; 22. Fixed column; 23. Fixed plate; 24. Fixed frame; 25. Drum; 26. Motor; 27. Wire rope; 28. Mounting frame; 29. Boom; 30. Guide wheel one; 31. Connecting frame; 32. Guide wheel two; 33. Limiting pin; 34. Hook; 35. Universal wheel with brake. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1-5 The present invention provides an embodiment of a hoisting device, comprising a base box 1 and a support arm 2. The top of the base box 1 is connected to a rotating component 17 to improve the positioning accuracy of the operation. The outside of the base box 1 is connected to a locking component 9 to improve the safety of the operation. The inside of the base box 1 is connected to a counterweight component 3 to improve stability.
[0033] The counterweight assembly 3 includes a support plate 4, which slides inside the base box 1. A guide groove 5 is provided at the bottom of the base box 1, and a guide plate 6 is slidably connected inside the guide groove 5. The top of the guide plate 6 is fixedly connected to the bottom of the support plate 4 to guide and prevent the support plate 4 from shifting during movement. Multiple sets of counterweights 8 are connected to the top of the support plate 4 to increase the weight of the device. The size of the counterweight can be changed by adjusting the number of counterweights to meet the needs of different lifting weights. A baffle 7 is fixedly connected to the front end of the support plate 4 to block the counterweights 8 placed on the support plate 4 and prevent the counterweights 8 from slipping off the front end.
[0034] The locking assembly 9 includes a locking plate 10, with a connecting block 11 fixedly connected to one side of the locking plate 10. A guide hole 12 is provided inside the connecting block 11, and a guide rod 13 is slidably connected inside the guide hole 12. One end of the guide rod 13 is fixedly connected to the outside of the base box 1 to ensure stable sliding of the locking plate 10. A limit groove 15 is provided inside the locking plate 10, and a limit plate 16 is slidably connected inside the limit groove 15. One end of the limit plate 16 is rotatably connected to the side of the baffle 7, locking the baffle 7 and preventing its movement through cooperation with the locking plate 10. The rotating assembly 17 includes a fixed box 18, with a fixed connection at the bottom of the fixed box 18. Connected to the top of the base box 1, a worm gear 19 is rotatably connected inside the fixed box 18. Both ends of the worm gear 19 rotate within the fixed box 18, ensuring stability. One end of the worm gear 19 passes through the fixed box 18 and is fixedly connected to a handle 20 for easy rotation by the operator. A worm wheel 21 is meshed with one side of the worm gear 19. A fixed post 22 is fixedly connected to the top of the worm wheel 21. One end of the fixed post 22 passes through the top of the fixed box 18 and is fixedly connected to a fixed plate 23. The fixed plate 23 is fixedly connected to the bottom of the support arm 2, enabling the support arm 2 to rotate synchronously. The fixed post 22 rotates inside the fixed box 18. The support arm 2 has a fixed frame 24 at its rear end. A motor 26 is bolted to the outside of the fixed frame 24. An electromagnetic brake is externally connected to the output shaft of the motor 26. A drum 25 is fixedly connected to the output shaft of the motor 26 through the fixed frame 24. One end of the drum 25 rotates inside the fixed frame 24. A wire rope 27 is externally connected to the drum 25. The motor 26 is used to wind up and unwind the wire rope 27 to lift the load. The support arm 2 has a fixed mounting frame 28 at its front end. A boom 29 is bolted to the inside of the mounting frame 28. A guide is rotatably connected to one end of the boom 29. Wheel 30 guides the wire rope 27. A connecting frame 31 is fixedly connected to the top of the support arm 2. A guide wheel 32 is rotatably connected inside the connecting frame 31 to further guide the direction of the wire rope 27 and ensure its smooth operation. Limit pins 33 are slidably connected inside the top of the connecting frame 31 and the boom 29 to prevent the wire rope 27 from falling off. One end of the wire rope 27 passes through the guide wheel 32 and the guide wheel 30 and is fixedly connected to a hook 34 for hooking heavy objects and lifting them. Multiple sets of universal casters 35 with brakes are connected to the bottom of the base box 1 for easy movement.
[0035] Working principle: First, by pushing the baffle 7, the support plate 4 slides horizontally inside the base box 1. At this time, the guide plate 6 at the bottom of the support plate 4 will slide smoothly and synchronously along the guide groove 5 at the bottom of the base box 1, preventing the support plate 4 from shifting. Then, multiple sets of counterweights 8 of appropriate weight are stacked on top of the support plate 4. After the counterweights 8 are placed, the limiting plate 16 is rotated to make it vertical. Then, the locking plate 10 is pushed, and the locking plate 10 moves along the guide rod 13 towards the base box 1, so that the limiting plate 16 slides into the lock. Inside the limiting groove 15 of plate 10, the limiting plate 16 is rotated to a horizontal position, firmly locking the baffle 7 to prevent the support plate 4 from moving due to vibration during hoisting operations, ensuring the stable operation of the counterweight assembly 3; when adjusting the working direction, the operator holds the handle 20 and rotates it, the handle 20 drives the worm 19 to rotate, since the worm 19 and the worm wheel 21 mesh with each other, the rotation of the worm 19 will drive the worm wheel 21 to rotate synchronously, the worm wheel 21 drives the fixed column 22 to rotate, and through the fixed plate 23 drives the fixed column 22 to rotate. The support arm 2 rotates horizontally to precisely adjust the working direction of the boom 29 and hook 34, achieving precise alignment of the load. When lifting a load, the hook 34 is hooked onto the lifting point of the load, and the motor 26 is started. The output shaft of the motor 26 drives the drum 25 to rotate. When the drum 25 rotates, it winds or releases the wire rope 27. During the winding and unwinding process, the wire rope 27 slides along the guide wheel 2 32 and guide wheel 1 30, changing the direction of force transmission, thereby driving the hook 34 and the load to lift and lower. When the motor 26 stops running, the electromagnetic brake immediately activates and tightly holds the output shaft of the motor 26, preventing the drum 25 from rotating and keeping the wire rope 27 taut. This ensures that the load is stably suspended at the required height, preventing accidental falls. When it is necessary to move the entire lifting device, the brake on the universal caster 35 with brake is released, and the base box 1 is pushed to move the device flexibly to the working position. After reaching the position, the brake is locked again to fix the universal caster 35 with brake, preventing displacement of the device during operation.
[0036] All electrical components mentioned in this article are electrically connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and known components is omitted in the specific embodiments disclosed herein. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hoisting device, comprising a base box (1) and a support arm (2), characterized in that: The base box (1) is connected to a rotating component (17) at the top, a locking component (9) is connected to the outside of the base box (1), and a counterweight component (3) is connected to the inside of the base box (1). The counterweight assembly (3) includes a support plate (4), which slides inside the base box (1). A guide groove (5) is provided at the bottom of the base box (1). A guide plate (6) is slidably connected inside the guide groove (5). The top of the guide plate (6) is fixedly connected to the bottom of the support plate (4). Multiple sets of counterweight blocks (8) are connected to the top of the support plate (4). A baffle (7) is fixedly connected to the front end of the support plate (4).
2. The hoisting device according to claim 1, characterized in that: The locking assembly (9) includes a locking plate (10), a connecting block (11) is fixedly connected to one side of the locking plate (10), a guide hole (12) is provided inside the connecting block (11), a guide rod (13) is slidably connected inside the guide hole (12), one end of the guide rod (13) is fixedly connected to the outside of the base box (1), a limiting groove (15) is provided inside the locking plate (10), a limiting plate (16) is slidably connected inside the limiting groove (15), and one end of the limiting plate (16) is rotatably connected to the side of the baffle (7).
3. The hoisting device according to claim 1, characterized in that: The rotating assembly (17) includes a fixed box (18), the bottom of which is fixedly connected to the top of the base box (1). A worm gear (19) is rotatably connected inside the fixed box (18), both ends of which rotate inside the fixed box (18). One end of the worm gear (19) passes through the fixed box (18) and is fixedly connected to a throttle (20). A worm wheel (21) is meshed with one side of the worm gear (19). A fixed column (22) is fixedly connected to the top of the worm wheel (21). One end of the fixed column (22) passes through the top of the fixed box (18) and is fixedly connected to a fixed plate (23). The fixed plate (23) is fixedly connected to the bottom of the support arm (2). The fixed column (22) rotates inside the fixed box (18).
4. The hoisting device according to claim 1, characterized in that: The support arm (2) is fixedly connected to a fixed frame (24) at its rear end. A motor (26) is fixedly installed on the outside of the fixed frame (24) by bolts. An electromagnetic brake is connected to the outside of the output shaft of the motor (26). A drum (25) is fixedly connected to the output shaft of the motor (26) through the fixed frame (24). One end of the drum (25) rotates inside the fixed frame (24). A wire rope (27) is connected to the outside of the drum (25).
5. A hoisting device according to claim 1, characterized in that: The front end of the support arm (2) is fixedly connected to a mounting frame (28), and a boom (29) is fixedly installed inside the mounting frame (28) by bolts. A guide wheel (30) is rotatably connected to one end of the boom (29).
6. A hoisting device according to claim 5, characterized in that: The top of the support arm (2) is fixedly connected to a connecting frame (31), and a guide wheel (32) is rotatably connected inside the connecting frame (31). Limit pins (33) are slidably connected inside the top of both the connecting frame (31) and the boom (29).
7. A hoisting device according to claim 4, characterized in that: One end of the wire rope (27) passes through guide wheel 2 (32) and guide wheel 1 (30) and is fixedly connected to a hook (34).
8. A hoisting device according to claim 1, characterized in that: The bottom of the base box (1) is connected to multiple sets of universal wheels (35) with brakes.