Multifunctional hoisting equipment for prefabricated part installation
By introducing structures such as load-bearing frames, counterweights, and limit rings into the hoisting equipment, the problem of low equipment stability has been solved, enabling efficient, safe, and diversified hoisting operations, and improving the stability and accuracy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CSCEC STRAIT CONSTR & DEV
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
AI Technical Summary
Existing hoisting equipment has low stability and is prone to swaying under stress, affecting operational accuracy and safety.
The structure incorporates a load-bearing frame, counterweight, hanging ring, hydraulic rod, lifting rod, hook, bracket, and wheels, along with positioning columns and locking nuts, to achieve efficient adjustment of the counterweight. T-blocks and T-slots provide precise guidance, while a servo motor drives gears and racks to flexibly adjust the limit ring, ensuring the stability and accuracy of the hook's movement.
It improves the stability and safety of lifting equipment, reduces the risk of swaying and tilting, enhances the safety and accuracy of operation, adapts to lifting tasks of different shapes and weights, and broadens the scope of application.
Smart Images

Figure CN224279600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hoisting equipment technology, specifically a multi-functional hoisting equipment for installing prefabricated components. Background Technology
[0002] Lifting refers to the installation and positioning of equipment using cranes or hoisting mechanisms. During inspection or maintenance, various lifting tools are used to lift equipment, workpieces, tools, materials, etc., causing them to change position. Lifting equipment is used in many common areas of life and can improve people's daily lives.
[0003] A search of Chinese utility model patent (publication number CN219489418U) reveals a multi-functional hoisting device, including a base plate, an adjusting frame, a rotating shaft, a drive motor, a pull rope, a hook, a limiting device, a fixing component, and a servo motor. This technical solution uses a limiting device to limit the pull rope when the hook moves the item, thereby minimizing the possibility of the item swaying due to inertia during movement.
[0004] However, through exploration, the inventors have discovered that this technical solution still has at least the following defects:
[0005] The existing hoisting equipment has low overall stability. The equipment may sway slightly when under stress, which affects the accuracy and safety of operation. Utility Model Content
[0006] The present invention aims to provide a multi-functional hoisting device for installing prefabricated components, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A multi-functional hoisting device for installing precast components includes a base plate, a tracked drive mechanism connected to the base plate, an adjusting frame connected to the base plate, a stepper motor connected to the base plate, a rotating shaft connected to the output end of the stepper motor, a fixed base connected to the base plate, a rotating shaft rotatably connected to the fixed base, a wheel connected to the rotating shaft, a pull rope wound around the wheel, a pulley connected to the adjusting frame, the pull rope passing through the pulley and connected to a hook, a load-bearing frame detachably connected to the base plate, a counterweight detachably connected to the load-bearing frame, a hanging ring connected to the load-bearing frame, a hydraulic rod connected to the base plate, a lifting rod connected to the telescopic end of the hydraulic rod, a hook connected to the lifting rod, the hook cooperating with the hanging ring, a bracket connected to the load-bearing frame, and wheels rotatably connected to the bracket.
[0009] Preferably, the load-bearing frame is connected to a positioning column, the positioning column passes through the counterweight block, and the positioning column is threadedly connected to a locking nut.
[0010] Preferably, the lifting rod is connected to a T-shaped block, the base plate has a T-shaped groove, and the T-shaped block is slidably connected to the T-shaped groove.
[0011] Preferably, the adjusting frame is connected to a fixed frame, the fixed frame is slidably connected to a rack, the fixed frame is rotatably connected to a gear, the gear is driven by a servo motor, the gear meshes with the rack, and the rack is connected to a limit ring.
[0012] Preferably, the adjusting frame is connected to a slider, the rack has a groove, and the slider is slidably connected to the groove.
[0013] The beneficial effects of this technical solution compared to existing technologies are as follows:
[0014] (1) This solution, by setting up a load-bearing frame, counterweight, hanging ring, hydraulic rod, lifting rod, hook, bracket, and wheels, facilitates the operator's counterweight adjustment of the equipment. Compared with the traditional method of relying on manual handling, it greatly saves time and labor costs, making the counterweight adjustment process more efficient and faster. The cooperative design of the hanging ring and hook provides a clear and precise connection point for the counterweight during loading and unloading, reducing the risk of the counterweight accidentally slipping during hoisting and ensuring the safety and accuracy of the operation. Furthermore, it ensures a reasonable distribution of the center of gravity of the equipment during use, effectively resisting the overturning moment generated by lifting heavy objects, significantly improving the overall stability of the equipment, reducing safety hazards such as swaying and tilting caused by imbalance, and ensuring the smooth progress of hoisting operations. At the same time, the convenient counterweight operation method reduces the operator's exposure time in dangerous areas and high-intensity physical labor, ensuring the safety of on-site personnel and surrounding facilities.
[0015] (2) By setting positioning columns and locking nuts, the counterweight can be disassembled. Operators can quickly loosen the locking nuts, replace the counterweight with one of appropriate weight, and then tighten the nuts to complete the fixation. The whole process is simple and efficient, greatly saving the time for counterweight adjustment and improving the operational flexibility and adaptability of the hoisting equipment. Moreover, for prefabricated components of different shapes, weights and lifting requirements, appropriate counterweights can be quickly configured, enhancing the equipment's adaptability to diverse hoisting tasks and broadening the equipment's application range.
[0016] (3) By setting T-blocks and T-slots, a precise guide path is provided for the lifting rod. During the lifting process, the lifting rod can only move vertically along the direction of the T-slot, effectively avoiding lateral swaying and offset caused by external interference. It also reduces the risk of overall equipment shaking and overturning caused by the instability of the lifting rod, ensuring the safety of operators and the construction site.
[0017] (4) By setting up a fixed frame, rack, gear, and limit ring, the effective limit of the limit ring on the pull rope during the movement of the hook can significantly reduce the swaying of the item due to inertia, thereby greatly improving the accuracy of the component being hoisted to the installation position, reducing the number of position fine adjustments required due to swaying, and improving the overall hoisting efficiency. By using a servo motor to drive the gear and rack to move the limit ring, the position of the limit ring can be flexibly adjusted. This means that the equipment can adapt to items of different weights, shapes, and hoisting requirements, enhancing the adaptability of the equipment in diverse hoisting tasks.
[0018] (5) By setting sliders and grooves, the degree of freedom of the rack is restricted, so that it can only move in the predetermined straight direction, avoiding the inaccurate position of the limit ring due to the deviation of the rack movement, thereby achieving more precise hoisting operations, improving the accuracy requirements of component installation, and reducing installation errors. Attached Figure Description
[0019] Figure 1 This is a front view of the present invention;
[0020] Figure 2 The right view provided for this utility model;
[0021] Figure 3 A front sectional view of the fixing bracket provided by this utility model;
[0022] Reference numerals in the attached drawings: 1. rack; 2. fixed frame; 3. limiting ring; 4. hook; 5. pulley; 6. adjusting frame; 7. pull rope; 8. rotating wheel; 9. stepper motor; 10. base plate; 11. track drive mechanism; 12. rotating shaft; 13. lifting rod; 14. T-block; 15. T-slot; 16. hydraulic rod; 17. load-bearing frame; 18. counterweight; 19. wheel; 20. bracket; 21. locking nut; 22. positioning column; 23. hanging ring; 24. hook; 25. fixed seat; 26. slide groove; 27. slider; 28. gear. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:
[0024] like Figure 1-3The multi-functional hoisting equipment for installing precast components shown includes a base plate 10. Symmetrically arranged track drive mechanisms 11 are connected to both sides of the base plate 10. These track drive mechanisms 11 are existing technology and will not be described in detail here. An adjusting frame 6 with an L-shaped cross-section is connected to the top of the base plate 10. A stepper motor 9 is connected to the top of the base plate 10, and a rotating shaft 12 is connected to the output end of the stepper motor 9. A fixed base 25 is connected to the top of the base plate 10. The end of the rotating shaft 12 away from the stepper motor 9 is rotatably connected to the fixed base 25. A wheel 8 is connected to the outer wall of the rotating shaft 12, and a pull rope 7 is wound around the outer wall of the wheel 8. Pulleys 5 are connected to both ends of the top of the adjusting frame 6. The pull rope 7 passes through the two pulleys 5, and a hook 4 is connected to the end of the pull rope 7 away from the wheel 8. A load-bearing frame 17 is detachably connected to the right side of the base plate 10. Several vertically linearly distributed components are detachably connected to the inner wall of the load-bearing frame 17. The counterweight 18 and the top of the load-bearing frame 17 are connected to three hanging rings 23. The right side of the base plate 10 is connected to two hydraulic rods 16. The telescopic ends of the two hydraulic rods 16 are connected to a lifting rod 13. The lifting rod 13 is connected to three hooks 24. The three hooks 24 cooperate with the three hanging rings 23 respectively. When the equipment is in a stationary rotating state, first control the two hydraulic rods 16 to extend and retract the piston rods to drive the lifting rod 13 down to the lowest point. Then, directly move the whole assembly formed by the counterweight 18 and the load-bearing frame 17 to the lifting rod 13. During this process, the hanging rings 23 will automatically align with the corresponding hooks 24. Finally, control the two hydraulic rods 16 to extend and retract the piston rods to drive the lifting rod 13 up. At this time, the hooks 24 hook the hanging rings 23 and drive the whole assembly formed by the load-bearing frame 17 and the counterweight 18 to lift off the ground. This completes the installation of the counterweight. When removing the counterweight, the above operation is reversed. The bottom of the load-bearing frame 17 is connected to a bracket 20. Two symmetrically distributed wheels 19 are rotatably connected to both ends of the bracket 20. The wheels 19 facilitate the operator to move the load-bearing frame 17 to the installation point.
[0025] like Figure 2As shown, two positioning columns 22 are connected to the inner wall of the load-bearing frame 17. Each positioning column 22 passes through a counterweight 18, and a locking nut 21 is threaded onto the top of each column 22. When the counterweight needs to be changed according to different lifting tasks, such as switching from lifting lighter prefabricated components to heavier components, the operator can quickly loosen the locking nut 21, replace the counterweight 18 with a suitable weight, and then tighten the nut to complete the fixation. The entire process is simple and efficient, greatly saving time for counterweight adjustment and improving the operational flexibility and adaptability of the lifting equipment. T-blocks 14 are connected to both ends of the lifting rod 13. The base plate 10 has T-slots 15 corresponding to the T-blocks 14. The T-blocks 14 and T-slots 15 are slidably connected, ensuring that during lifting, the lifting rod 13 can only move vertically along the direction of the T-slots 15, effectively avoiding lateral swaying and offset caused by external interference or inaccuracies in the mechanical components themselves.
[0026] like Figure 3 As shown, the adjusting frame 6 is connected to the fixed frame 2. A rack 1 is slidably connected to the inner wall of the fixed frame 2, and a gear 28 is rotatably connected to the fixed frame 2. The gear 28 is driven by a servo motor, and it meshes with the rack 1. A limit ring 3 is connected to the bottom of the rack 1. A slider 27 is connected to one end of the adjusting frame 6 near the rack 1. The rack 1 has a groove 26, and the slider 27 is slidably connected to the groove 26. When the servo motor is started, its output drives the gear 28 to rotate. Through the meshing of the gear 28 and the rack 1, the rack 1 moves the limit ring 3 vertically, allowing for flexible adjustment of the limit ring 3's position. This means the equipment can adapt to items of different weights, shapes, and lifting requirements. For heavier precast concrete columns, a larger limit range may be needed to control their sway, while for lighter decorative precast components, the limit range can be appropriately reduced to increase operating speed. Operators can quickly adjust the position of the limit ring 3 according to the actual situation, optimizing the equipment's performance and enhancing its adaptability to diverse lifting tasks.
[0027] The specific implementation process is as follows:
[0028] In use, first estimate the required counterweight based on the hoisting task, prepare a counterweight block 18 of the corresponding weight and connect it to the load-bearing frame 17. The counterweight block 18 is positioned by the positioning column 22 and the locking nut 21 is tightened. Then, move the load-bearing frame 17 to the installation point using the wheels 19, and push the load-bearing frame 17 to make it touch the base plate 10. At this time, the hanging ring 23 and the hook 24 are automatically aligned. Then, start the hydraulic rod 16 again, the piston rod extends, and drives the lifting rod 13 to rise, so that the hook 24 is put into the hanging ring 23 and the load-bearing frame 17 is lifted off the ground, completing the counterweight installation.
[0029] The stepper motor 9 is started, driving the rotating shaft 12 to rotate, causing the rotating wheel 8 to wind or release the pull rope 7. Guided by the pulley 5, the hook 4 is raised and lowered to lift the prefabricated component. Before lifting, depending on the condition of the item being lifted, the servo motor is started, driving the gear 28 to rotate, which in turn moves the meshing rack 1. Under the stabilizing effect of the slider 27 and the slide groove 26, the rack 1 moves the limiting ring 3 up and down, adjusting the position of the limiting ring 3 to limit the pull rope 7 and reduce the swaying of the item during lifting.
[0030] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A multi-functional hoisting device for installing precast components, characterized in that: Includes a base plate (10), the base plate (10) is connected to a track drive mechanism (11), the base plate (10) is connected to an adjustment frame (6), the base plate (10) is connected to a stepper motor (9), the output end of the stepper motor (9) is connected to a rotating shaft (12), the base plate (10) is connected to a fixed seat (25), the rotating shaft (12) is rotatably connected to the fixed seat (25), the rotating shaft (12) is connected to a rotating wheel (8), the rotating wheel (8) is wound with a pull rope (7), the adjustment frame (6) is connected to a pulley (5), the pull rope (7) passes through the pulley (5), and so on. The pull rope (7) is connected to the hook (4), the base plate (10) is detachably connected to the load-bearing frame (17), the load-bearing frame (17) is detachably connected to the counterweight (18), the load-bearing frame (17) is connected to the hanging ring (23), the base plate (10) is connected to the hydraulic rod (16), the telescopic end of the hydraulic rod (16) is connected to the lifting rod (13), the lifting rod (13) is connected to the hook (24), the hook (24) and the hanging ring (23) cooperate with each other, the load-bearing frame (17) is connected to the bracket (20), and the bracket (20) is rotatably connected to the wheel (19).
2. The multi-functional hoisting equipment for prefabricated component installation as described in claim 1, characterized in that: The load-bearing frame (17) is connected to a positioning column (22), which passes through the counterweight (18) and is threaded with a locking nut (21).
3. The multi-functional hoisting equipment for installing prefabricated components as described in claim 1, characterized in that: The lifting rod (13) is connected to a T-shaped block (14), and the base plate (10) is provided with a T-shaped groove (15). The T-shaped block (14) and the T-shaped groove (15) are slidably connected.
4. The multi-functional hoisting equipment for prefabricated component installation as described in claim 1, characterized in that: The adjusting frame (6) is connected to a fixed frame (2), the fixed frame (2) is slidably connected to a rack (1), the fixed frame (2) is rotatably connected to a gear (28), the gear (28) is driven by a servo motor, the gear (28) meshes with the rack (1), and the rack (1) is connected to a limit ring (3).
5. The multi-functional hoisting equipment for prefabricated component installation as described in claim 4, characterized in that: The adjusting frame (6) is connected to a slider (27), and the rack (1) has a groove (26). The slider (27) is slidably connected to the groove (26).