Large hoisting operation auxiliary device
The adjustable counterweight system and dual locking mechanism solve the problems of torque imbalance and instability in hoisting equipment, thereby improving the safety and stability of the hoisting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JINDUN HOISTING SERVICE CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-21
AI Technical Summary
Existing hoisting equipment cannot dynamically adjust the counterweight, resulting in torque imbalance. This increases the risk of tipping over, especially when hoisting overweight or asymmetrical objects. Furthermore, the lack of multi-level redundancy protection mechanisms leads to instability during the hoisting process.
An adjustable counterweight system is adopted, which dynamically adjusts the counterweight through bolts and collars. Combined with a double locking mechanism to improve stability, the mechanical safety design including springs and locking blocks ensures the safety and stability of the hoisting process.
It enables dynamic adjustment of counterweight based on load weight, reducing the probability of equipment tipping over, improving the stability and safety of hoisting operations, and enhancing the equipment's adaptive adjustment capabilities.
Smart Images
Figure CN224147491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting auxiliary devices, and in particular to a large-scale hoisting operation auxiliary device. Background Technology
[0002] Large-scale hoisting operations are widely used in bridge construction, heavy equipment installation, wind turbine tower assembly, and other engineering fields. The core requirement is the safe and precise spatial positioning of large-tonnage or irregularly shaped components. As engineering projects become increasingly large and complex, traditional hoisting equipment often suffers from insufficient load-bearing capacity and lagging dynamic balance adjustment, leading to safety hazards such as excessive swaying and torque imbalance during hoisting. Especially in special operating environments such as offshore platforms and mountainous terrain, the stability and self-adjusting capability of the hoisting device directly affect project efficiency and safety.
[0003] Existing lifting equipment primarily relies on fixed counterweight systems and mechanical locking structures for basic functionality. For example, counterweights are fixed to a welded frame to balance lifting torque, the boom angle is adjusted using hydraulic cylinders or gear transmissions, and mechanical pins or friction brakes prevent cable slippage. Some high-end equipment incorporates pressure sensors to monitor load changes, but counterweight adjustments still require manual addition or removal of counterweights after shutdown, making real-time response to dynamic loads difficult. Furthermore, traditional anti-disengagement devices often use unidirectional limit pins, which, while preventing accidental disengagement, lack multi-level redundant protection mechanisms and are prone to mechanical fatigue failure under frequent start-stop operations or impact loads.
[0004] However, the static design of existing counterweight systems has significant drawbacks: fixed counterweights cannot dynamically adjust the balancing torque according to the load weight. For example, when hoisting heavy objects or asymmetrical components, traditional equipment needs to pre-estimate the maximum load and stack excessive counterweights, which not only increases the structural weight and energy consumption, but also causes the equipment's center of gravity to shift due to real-time mismatch between the counterweight and the load, increasing the risk of overturning. To address these issues, large-scale hoisting operation auxiliary devices are proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a large-scale hoisting operation auxiliary device, which aims to improve the problem in the prior art that the counterweight cannot be dynamically adjusted according to the load weight, resulting in equipment torque imbalance, especially when hoisting overweight or asymmetrical objects, the probability of overturning increases significantly.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A large hoisting operation auxiliary device includes a first support plate, a second support plate fixedly connected to the side wall of the first support plate, a rotating wheel rotatably connected to the side wall of the second support plate, a steel cable provided on the outer wall of the rotating wheel, a second fixed plate fixedly connected to the side wall of the second support plate, a hook rotatably connected inside the second fixed plate, a limit ring fixedly connected to the outer wall of the hook, and a support assembly provided on the side wall of the first support plate.
[0008] The support assembly includes a diagonal brace plate, the side wall of which is fixedly connected to the side wall of a first support plate, a first fixing plate fixedly connected to the top of the diagonal brace plate, a first fixing column fixedly connected to the top of the first fixing plate, a collar slidably connected to the outer wall of the first fixing column, a bolt threaded inside the collar, and one end of the bolt being disposed on the outer wall of the first fixing column.
[0009] As a further description of the above technical solution:
[0010] The hook is fixedly connected to a first connecting plate on its outer wall, and the side wall of the first connecting plate is disposed on the side wall of the first support plate.
[0011] As a further description of the above technical solution:
[0012] The hook is internally fixedly connected to a second fixing post, and the outer wall of the second fixing post is rotatably connected to a first rotating plate.
[0013] As a further description of the above technical solution:
[0014] A first spring is provided at the bottom of the first connecting plate. One end of the first spring is fixedly connected to the bottom of the first connecting plate, and the other end of the first spring is fixedly connected to the top of the first rotating plate.
[0015] As a further description of the above technical solution:
[0016] The hook is rotatably connected to a third fixed post. A second spring is provided on the outer wall of the third fixed post. One end of the second spring is fixedly connected to the outer wall of the third fixed post, and the other end of the second spring is fixedly connected to a second connecting plate.
[0017] As a further description of the above technical solution:
[0018] A locking block is fixedly connected to the bottom of the second connecting plate, and the outer wall of the locking block is disposed inside the first rotating plate.
[0019] As a further description of the above technical solution:
[0020] The bottom of the first rotating plate is located on the outer wall of the hook, and the top of the second connecting plate is located on the top of the first rotating plate.
[0021] As a further description of the above technical solution:
[0022] The first rotating plate sidewall is rotatably connected to the hook sidewall, and the second connecting plate sidewall is rotatably connected to the hook outer wall.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, the rotating bolt rotates inside the collar, and then one end of the bolt is disengaged from the outer wall of the first fixed column, which achieves the effect of adjusting the counterweight. This solves the problem that the counterweight cannot be dynamically adjusted according to the load weight, which leads to the imbalance of the equipment torque. Especially when lifting overweight or asymmetrical objects, the probability of overturning increases significantly, thus improving the practicality of the auxiliary device for large-scale lifting operations.
[0025] 2. In this utility model, by pulling the second connecting plate, the second spring is retracted, and then the bottom of the second connecting plate is disengaged from the inside of the first rotating plate. Next, the first rotating plate can be moved to retract the first spring and make it rotate on the outer wall of the second fixed column, achieving a double locking effect. This solves the problem of the lack of a locking structure, which leads to the risk of accidental falling during hoisting, thereby increasing the problem of load loss and falling, and improves the stability of the large hoisting operation auxiliary device. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of the large-scale hoisting operation auxiliary device proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the side wall structure of the first support plate of the large hoisting operation auxiliary device proposed in this utility model;
[0028] Figure 3 This is an exploded structural diagram of the first support plate of the large hoisting operation auxiliary device proposed in this utility model;
[0029] Figure 4 This is a schematic diagram of the hook sidewall structure of the large hoisting operation auxiliary device proposed in this utility model;
[0030] Figure 5 for Figure 2 Enlarged view of point A in the middle;
[0031] Figure 6 for Figure 3 Enlarged view of point B in the middle.
[0032] Legend:
[0033] 1. Steel cable; 2. First support plate; 3. Rotating wheel; 4. Diagonal brace; 5. First fixing plate; 6. First fixing post; 7. Second fixing plate; 8. Hook; 9. Limiting ring; 10. Second support plate; 11. Collar; 12. Bolt; 13. Second fixing post; 14. First rotating plate; 15. First connecting plate; 16. First spring; 17. Third fixing post; 18. Second spring; 19. Second connecting plate; 20. Locking block. Detailed Implementation
[0034] 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.
[0035] Reference Figures 1-3 and Figure 5 This utility model provides an embodiment of a large-scale hoisting operation auxiliary device, including a first support plate 2, which together with a second support plate 10 forms a main frame, providing an installation base for a rotating wheel 3 and a steel cable 1, achieving the effect of stably supporting the hoisting system. The second support plate 10 is fixedly connected to the side wall of the first support plate 2, and a rotating wheel 3 is rotatably connected to the side wall of the second support plate 10. The rotating wheel 3, together with the steel cable 1, performs a winding motion to realize the lifting and lowering control of the hoisted object, achieving the effect of precisely adjusting the hoisting height. The outer wall of the rotating wheel 3 is provided with a steel cable 1. The side wall of the second support plate 10 is fixedly connected with a second fixed plate 7, and a hook 8 is rotatably connected inside the second fixed plate 7. A limit ring 9 is fixedly connected to the outer wall of the hook 8. The side wall of the first support plate 2 is provided with a support component.
[0036] The support assembly includes a diagonal brace 4, which, together with the first fixed plate 5, forms a triangular support structure, enhancing the load-bearing capacity of the first fixed column 6 and improving the stability of the counterweight system. The side wall of the diagonal brace 4 is fixedly connected to the side wall of the first support plate 2, and the top of the diagonal brace 4 is fixedly connected to the first fixed plate 5. The top of the first fixed plate 5 is fixedly connected to the first fixed column 6. A collar 11 is slidably connected to the outer wall of the first fixed column 6. The collar 11 is height-adjustable by bolts 12, enabling quick loading, unloading, and positioning of the counterweight, and achieving the effect of adjusting the balance counterweight according to different working conditions. Bolts 12 are threaded inside the collar 11, and one end of the bolts 12 is located on the outer wall of the first fixed column 6.
[0037] Reference Figures 1-3 and Figure 6A first connecting plate 15 is fixedly connected to the outer wall of the hook 8. The side wall of the first connecting plate 15 is set on the side wall of the first support plate 2. A second fixing post 13 is fixedly connected to the inside of the hook 8. A first rotating plate 14 is rotatably connected to the outer wall of the second fixing post 13. A first spring 16 is set at the bottom of the first connecting plate 15. One end of the first spring 16 is fixedly connected to the bottom of the first connecting plate 15, and the other end of the first spring 16 is fixedly connected to the top of the first rotating plate 14. A third fixing post 17 is rotatably connected to the inside of the hook 8. A second spring 18 is set on the outer wall of the third fixing post 17. One end of the second spring 18 is fixedly connected to the third fixing post 14. The outer wall of the fixed column 17 is fixedly connected to the other end of the second spring 18, and a second connecting plate 19 is fixedly connected to the bottom of the second connecting plate 19. The locking block 20 is locked to the first rotating plate 14. With the elastic reset function of the second spring 18, a double mechanical safety protection effect is achieved. The outer wall of the locking block 20 is set inside the first rotating plate 14. The bottom of the first rotating plate 14 is set on the outer wall of the hook 8. The top of the second connecting plate 19 is set on the top of the first rotating plate 14. The side wall of the first rotating plate 14 is rotatably connected to the side wall of the hook 8. The side wall of the second connecting plate 19 is rotatably connected to the outer wall of the hook 8.
[0038] Working principle: When using the large hoisting operation auxiliary device, first pull the second connecting plate 19. The second connecting plate 19 drives the second spring 18 at the bottom to retract. Then, during the rotation of the second connecting plate 19, it will drive the third fixed column 17 to rotate inside the hook 8. Then, during the movement of the second connecting plate 19, it will drive the bottom locking block 20 to disengage from the inside of the first rotating plate 14. Then, the first rotating plate 14 can be turned. The first rotating plate 14 will rotate on the outer wall of the second fixed column 13 under force. Then, during the rotation of the first rotating plate 14, it will drive the first spring 16 to retract, achieving a double locking effect.
[0039] Then, when adding the counterweight, first rotate the bolt 12. The bolt 12 is subjected to force and rotates inside the collar 11, and one end of the bolt 12 is disengaged from the outer wall of the first fixed post 6. Then, the collar 11 can be pulled out and disengaged from the outer wall of the first fixed post 6. Then, the counterweight can be placed on the outer wall of the first fixed post 6. Then, the bottom of the collar 11 is pressed against the top of the counterweight. Then, the bolt 12 is tightened so that one end is pressed against the outer wall of the first fixed post 6, thus achieving the effect of adjusting the counterweight.
[0040] 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. Auxiliary device for large hoisting operations, comprising a first support plate (2), characterised in that: A second support plate (10) is fixedly connected to the side wall of the first support plate (2), and a rotating wheel (3) is rotatably connected to the side wall of the second support plate (10). A steel cable (1) is provided on the outer wall of the rotating wheel (3). A second fixing plate (7) is fixedly connected to the side wall of the second support plate (10). A hook (8) is rotatably connected inside the second fixing plate (7). A limit ring (9) is fixedly connected to the outer wall of the hook (8). A support assembly is provided on the side wall of the first support plate (2). The support assembly includes a diagonal brace (4), the side wall of which is fixedly connected to the side wall of the first support plate (2), the top of which is fixedly connected to a first fixing plate (5), the top of which is fixedly connected to a first fixing column (6), the outer wall of which is slidably connected to a collar (11), the collar (11) being threadedly connected to a bolt (12), one end of which is located on the outer wall of the first fixing column (6).
2. The large lift assist device of claim 1, wherein: The hook (8) is fixedly connected to the outer wall of the first connecting plate (15), and the side wall of the first connecting plate (15) is arranged on the side wall of the first support plate (2).
3. A large lift assist device according to claim 2, characterised in that: The hook (8) is internally fixedly connected to a second fixed post (13), and the outer wall of the second fixed post (13) is rotatably connected to a first rotating plate (14).
4. A large lift assist device according to claim 3, characterised in that: A first spring (16) is provided at the bottom of the first connecting plate (15). One end of the first spring (16) is fixedly connected to the bottom of the first connecting plate (15), and the other end of the first spring (16) is fixedly connected to the top of the first rotating plate (14).
5. A large lift assist device according to claim 4, characterised in that: The hook (8) is rotatably connected to a third fixed post (17). A second spring (18) is provided on the outer wall of the third fixed post (17). One end of the second spring (18) is fixedly connected to the outer wall of the third fixed post (17), and the other end of the second spring (18) is fixedly connected to a second connecting plate (19).
6. A large lift assist device according to claim 5, characterised in that: The bottom of the second connecting plate (19) is fixedly connected to a locking block (20), and the outer wall of the locking block (20) is disposed inside the first rotating plate (14).
7. A large lift assist device according to claim 6, characterised in that: The bottom of the first rotating plate (14) is disposed on the outer wall of the hook (8), and the top of the second connecting plate (19) is disposed on the top of the first rotating plate (14).
8. A large lift assist device according to claim 7, characterised in that: The side wall of the first rotating plate (14) is rotatably connected to the side wall of the hook (8), and the side wall of the second connecting plate (19) is rotatably connected to the outer wall of the hook (8).