Anti-shaking clamping device adaptive to hoisting transportation of slope protection precast block
By designing an anti-sway clamping device and utilizing the cooperation of the hoisting cantilever and winch, stable hoisting and precise positioning of precast blocks were achieved, solving the problems of swaying and inaccurate placement during the transportation of precast blocks and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY SHANGHAI ENG BUREAU GRP THIRD ENG CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-28
AI Technical Summary
In slope protection construction, the transportation efficiency of precast blocks is low and they are prone to shaking, making it difficult to place them accurately in the trench, which affects construction efficiency.
An anti-sway clamping device was designed, including a lifting cantilever, a winch block, a pull rope, and a clamping arm. Through the cooperation of the winch and the toothed chain assembly, the precast blocks are stably lifted and precisely positioned. The positioning rod and torsion spring limit the swaying and ensure that the lifting frame moves up and down in the vertical direction.
This improved the stability of precast block transportation and the accuracy of hoisting positions, reduced manual intervention, and increased construction efficiency.
Smart Images

Figure CN224172328U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slope protection construction technology, specifically to an anti-sway clamping device adapted for the hoisting and transportation of precast slope protection blocks. Background Technology
[0002] In order to improve the forming efficiency, the frame is usually prefabricated during the construction of the slope protection frame. Then, grooves are cut on the slope protection and the prefabricated frame blocks are installed in the grooves.
[0003] Since slope protection is usually sloping, manual transportation is extremely difficult. Therefore, the common method is to lay a movable conveyor frame for transporting precast blocks. The precast blocks are transported to the bottom of the slope by a transport vehicle and then placed on a conveyor belt to be transported to the top of the slope.
[0004] However, after transportation, the precast blocks still need to be placed in the trench manually. The individual weight of the precast blocks is relatively heavy, and the transportation and handling efficiency is still low. In addition, the common cantilever hoisting method is prone to shaking during transportation, making it difficult to accurately align with the trench position. Utility Model Content
[0005] The purpose of this utility model is to provide an anti-sway clamping device adapted for the hoisting and transportation of precast blocks for slope protection, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An anti-sway clamping device adapted for the hoisting and transportation of precast slope protection blocks includes a hoisting cantilever. The hoisting cantilever is vertically mounted on a traveling base via a column. A rotating assembly for driving the hoisting cantilever to rotate is provided on the column. A winch block driven by a telescopic rod is provided on the hoisting cantilever. A motor-driven winch wheel is provided in the winch block. A pull rope is wound on the winch wheel. The end of the pull rope is connected to a hanger. A clamping arm for clamping the precast blocks is provided at the lower end of the hanger via a torsion spring. A positioning rod that is slidably inserted into the winch block is provided at the upper end of the hanger.
[0008] Preferably, the precast blocks are transported by a conveyor set on the slope of the slope protection. Toothed chain assemblies are provided on both sides of the conveyor, and sprockets that cooperate with the toothed chain assemblies are provided on the traveling base. A motor that drives the sprockets to rotate is provided on the traveling base.
[0009] Preferably, a ditch is provided on the slope of the slope protection, the conveyor is laid parallel to the ditch, and the lower end of the hanger is directly opposite the ditch.
[0010] Preferably, the front and rear side walls of the lifting cantilever are provided with sliding grooves, the winch block is provided with a side block that is slidably inserted into the sliding groove, the upper end of the lifting cantilever is provided with an opening groove, and the positioning rod passes through the winch block and extends to the upper end of the opening groove.
[0011] Preferably, the hanger is provided with a pair of spaced-apart rotating shafts, on which torsion springs and gears are fixedly sleeved, and the pair of clamping arms are respectively sleeved on the torsion springs of the rotating shafts.
[0012] Preferably, the upper end of the inner cavity of the hanger is provided with a downwardly extending drive rod, and the lower end of the drive rod is telescopically connected to a double-sided rack. The lower end of the double-sided rack is inserted into the gap between gears on a pair of rotating shafts, and the double-sided rack is meshed with the gears.
[0013] Preferably, the telescopic rod is arranged parallel to the opening slot, with one end of the telescopic rod fixed to the winch block and the other end fixed to the hoisting cantilever.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This utility model, by setting up a hanger, enables the hanger to be raised and lowered under the winch action of the pull rope. The precast blocks are hoisted by the clamping arm at the lower end of the hanger. By setting up a positioning rod, the position of the hanger relative to the winch block can only be raised and lowered in the vertical direction, without lateral offset or swaying, thus improving the stability of transportation and the accuracy of hoisting position. Attached Figure Description
[0016] Figure 1 This is a top view of the present invention;
[0017] Figure 2 This is a schematic diagram of the lifting cantilever structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the hanger structure of this utility model.
[0019] In the diagram: 1. Groove; 2. Toothed chain assembly; 3. Conveyor; 4. Traveling base; 5. Lifting cantilever; 6. Column; 7. Rotating assembly; 8. Opening slot; 9. Winch block; 10. Telescopic rod; 11. Winch reel; 12. Clamping arm; 13. Hanger; 14. Drive rod; 15. Positioning rod; 16. Slide groove; 17. Pull rope; 18. Double-sided rack; 19. Rotating shaft. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1 to 3 This utility model provides a technical solution:
[0022] Example 1: An anti-sway clamping device adapted for the hoisting and transportation of precast blocks for slope protection includes a hoisting cantilever 5, which is vertically mounted on a traveling base 4 via a column 6. A rotating component 7 for driving the hoisting cantilever 5 to rotate is provided on the column 6. The precast blocks are transported by a conveyor 3 set on the slope of the slope. Toothed chain assemblies 2 are provided on both sides of the conveyor 3. A sprocket that cooperates with the toothed chain assembly 2 is provided on the traveling base 4. A motor for driving the sprocket to rotate is provided on the traveling base 4. A ditch 1 is provided on the slope of the slope. The conveyor 3 is laid parallel to the ditch 1, and the lower end of the hanger 13 is directly opposite the ditch 1.
[0023] The precast blocks are transported by a conveyor 3, and the hoisting cantilever 5 moves synchronously along the slope by cooperating with the toothed chain assembly 2 and the traveling base 4.
[0024] The lifting boom 5 is equipped with a winch block 9 driven by a telescopic rod 10. The winch block 9 is equipped with a motor-driven winch wheel 11. A pull rope 17 is wound on the winch wheel 11. The end of the pull rope 17 is connected to the hanger 13. The winch block 9 can be slid by the telescopic rod 10 to achieve lateral position adjustment. The vertical lifting and lowering adjustment of the hanger 13 can be achieved by the cooperation of the motor-driven winch wheel and the pull rope 17.
[0025] The lower end of the hanger 13 is provided with a clamping arm 12 for clamping the precast blocks, which is rotatably mounted by a torsion spring, and the upper end of the hanger 13 is provided with a positioning rod 15 that is slidably inserted into the winch block 9.
[0026] The positioning rod 15 is used to limit the position of the hanger 13 relative to the lifting cantilever 5, thus maintaining the stability of transportation.
[0027] Working principle: First, the telescopic rod 10 is used to adjust the winch block 9 and the hanger 13 to the position corresponding to the precast block on the conveyor 3. The winch wheel 11 and the pull rope 17 are used to lower the height of the hanger 13. The clamping arm 12 is used to clamp the precast block. Then, the winch wheel 11 is used to wind up the pull rope 17, so that the precast block is lifted.
[0028] Then, through the cooperation of the toothed chain assembly 2 and the traveling base 4, the lifting cantilever 5 moves parallel to the trench to the installation position. Then, the angle of the lifting cantilever 5 is adjusted by the rotating assembly 7 so that it faces the trench 1. The winch block 9 and the hanger 13 are adjusted to be directly above the trench 1 by the telescopic rod 10. Then, the rope 17 is pulled down to lower the precast block into the trench 1. During the transportation process, the positioning rod 15 on the hanger 13 always remains connected to the winch block 9, thereby limiting the deflection of the hanger 13 and making the hanger 13 only move up and down, thus avoiding the swaying of the hanger 13.
[0029] The rotating assembly 7, the traveling base 4, the conveyor 3, the winch 11, and the telescopic rod 10 are all common devices in the field and will not be described in detail.
[0030] Example 2: Based on Example 1, the front and rear side walls of the lifting cantilever 5 are provided with sliding grooves 16, the winch block 9 is provided with a side block that is slidably inserted into the sliding groove 16, the upper end of the lifting cantilever 5 is provided with an opening groove 8, and the positioning rod 15 passes through the winch block 9 and extends to the upper end of the opening groove 8.
[0031] By setting the side block and the slide groove 16 to cooperate, the winch block 9 can be limited and slidably installed. By setting the opening groove 8 and the positioning rod 15 to be inserted through, it can be adapted to the long-distance lifting and lowering movement of the hanger 13.
[0032] Example 3: Based on Example 2, the hanger 13 is provided with a pair of spaced rotating shafts 19, with torsion springs and gears fixedly sleeved on the rotating shafts 19, and a pair of clamping arms 12 respectively sleeved on the torsion springs of the rotating shafts 19.
[0033] The clamping arm 12 is installed by elastic rotation using a torsion spring.
[0034] The upper end of the inner cavity of the hanger 13 is provided with a downwardly extending drive rod 14. The lower end of the drive rod 14 is telescopically connected to a double-sided rack 18. The lower end of the double-sided rack 18 is inserted into the gap between the gears on a pair of rotating shafts 19, and the double-sided rack 18 is meshed with the gears. The telescopic rod 10 is arranged parallel to the opening slot 8. One end of the telescopic rod 10 is fixed to the winch block 9, and the other end is fixed to the lifting cantilever 5.
[0035] By setting up a double-sided rack 18 in conjunction with a gear, the lifting and lowering motion of the double-sided rack 18 can be controlled by the drive rod 14, thereby simultaneously controlling the rotation and opening and closing of a pair of clamping arms 12. This achieves simple and efficient control of the clamping motion, further reducing the need for manual intervention and improving the level of intelligence.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sway-proof clamping device adapted for the hoisting and transportation of precast slope protection blocks, comprising a hoisting cantilever (5), wherein the hoisting cantilever (5) is vertically mounted on a traveling base (4) via a column (6), and a rotating assembly (7) for driving the hoisting cantilever (5) to rotate is provided on the column (6), characterized in that: The hoisting boom (5) is equipped with a winch block (9) driven by a telescopic rod (10). The winch block (9) is equipped with a motor-driven winch wheel (11). A pull rope (17) is wound on the winch wheel (11). The end of the pull rope (17) is connected to a hanger (13). The lower end of the hanger (13) is equipped with a clamping arm (12) for clamping the precast blocks, which is rotatably installed by a torsion spring. The upper end of the hanger (13) is equipped with a positioning rod (15) that is slidably inserted into the winch block (9).
2. The anti-sway clamping device adapted for the hoisting and transportation of precast slope protection blocks according to claim 1, characterized in that: The precast blocks are transported by a conveyor (3) set on the slope of the slope. Toothed chain assemblies (2) are set on both sides of the conveyor (3). A sprocket that cooperates with the toothed chain assembly (2) is set on the walking base (4). A motor that drives the sprocket to rotate is set on the walking base (4).
3. The anti-sway clamping device adapted for the hoisting and transportation of precast slope protection blocks according to claim 2, characterized in that: A ditch (1) is provided on the slope of the slope protection, and the conveyor (3) is laid parallel to the ditch (1), with the lower end of the hanger (13) facing the ditch (1).
4. The anti-sway clamping device adapted for the hoisting and transportation of precast slope protection blocks according to claim 3, characterized in that: The front and rear side walls of the hoisting boom (5) are provided with sliding grooves (16), the winch block (9) is provided with a side block that is slidably inserted into the sliding groove (16), the upper end of the hoisting boom (5) is provided with an opening groove (8), and the positioning rod (15) passes through the winch block (9) and extends to the upper end of the opening groove (8).
5. The anti-sway clamping device adapted for the hoisting and transportation of precast slope protection blocks according to claim 1, characterized in that: The hanger (13) is provided with a pair of spaced rotating shafts (19), and a torsion spring and a gear are fixedly sleeved on the rotating shafts (19). A pair of clamping arms (12) are respectively sleeved on the torsion springs of the rotating shafts (19).
6. The anti-sway clamping device adapted for the hoisting and transportation of precast slope protection blocks according to claim 5, characterized in that: The upper end of the inner cavity of the hanger (13) is provided with a downwardly extending drive rod (14), and the lower end of the drive rod (14) is telescopically connected to a double-sided rack (18). The lower end of the double-sided rack (18) is inserted into the gap between the gears on a pair of rotating shafts (19), and the double-sided rack (18) is meshed with the gears.
7. The anti-sway clamping device adapted for the hoisting and transportation of precast slope protection blocks according to claim 4, characterized in that: The telescopic rod (10) is arranged parallel to the opening slot (8), with one end of the telescopic rod (10) fixed on the winch block (9) and the other end fixed on the hoisting cantilever (5).