Lifting appliance with anti-slip structure

Abstract

The invention provides a hoisting sling with an anti-slip structure, and relates to the technical field of hoisting slings. Two sets of welding seats are welded to the left side and the right side of the fixing frame correspondingly, hinge arms are hinged to the lower ends of the welding seats, bottom rods are fixed between the two sets of hinge arms close to the left end of the fixing frame and between the two sets of hinge arms close to the right end of the fixing frame correspondingly, and clamping seats are installed on the bottom rods through bolts; a third hydraulic rod extends to enable a clamping plate to clamp a steel structure, rotating arms are hinged to the left side and the right side of a top frame, fifth hydraulic rods are installed between the rotating arms and the top frame, and centering plates are installed between the two sets of rotating arms close to the left side of the top frame and between the two sets of rotating arms close to the right side of the top frame. The two ends of the steel structure are clamped through two sets of centering plates by extending the fifth hydraulic rods, the steel structure is located under the top frame, when the steel structure is clamped through the clamping plates, the gravity center of the steel structure can be prevented from shifting, and the safety during hoisting is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting slings, and in particular to a hoisting sling with an anti-slip structure. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. Welds, bolts or rivets are usually used to connect the components or parts. Because of its light weight and simple construction, it is widely used in large factories, venues, super high-rise buildings, bridges and other fields. With the rapid development of my country's economy, a large number of complex steel structures have emerged. Now the construction of complex steel structures mostly adopts the overall lifting method. This method can reduce the construction volume on site, better control the quality of components, shorten the operation route of the crane, reduce the downtime, and provide a working surface for subsequent work as soon as possible, thereby shortening the construction period. Therefore, a lifting sling with an anti-slip structure is designed.

[0003] In the prior art, when lifting a steel structure, a steel wire rope is often used to connect the two sides of the steel structure with a hook. During the lifting process, the center of gravity of the steel structure is easily shifted, causing the steel structure to tilt, thereby causing the steel structure to slip, resulting in safety accidents and affecting the safety of the steel structure during lifting. Summary of the invention

[0004] The disclosed embodiment relates to a lifting sling with an anti-slip structure to solve the problem in the prior art that when lifting a steel structure, the center of gravity of the steel structure is easily shifted during the lifting process, causing the steel structure to tilt and affecting the safety of the steel structure during lifting.

[0005] In a first aspect of the present disclosure, there is provided a lifting sling with an anti-slip structure, specifically comprising: a fixing frame;

[0006] Two groups of welding seats are welded on the left and right sides of the fixing frame, and an articulated arm is hinged at the lower end of the welding seat. A bottom rod is fixed between the two groups of articulated arms near the left end of the fixing frame and between the two groups of articulated arms near the right end of the fixing frame. A clamping seat is installed on the bottom rod through bolts, and a moving wheel is installed on the lower end of the clamping seat through bolts. A connecting arm is hinged on the welding seat, and a No. 1 hydraulic rod is installed between the connecting arm and the articulated arm. Two groups of moving seats are movable at the upper end of the fixing frame, and a top plate is fixed at the upper end of the two groups of moving seats. A top frame is arranged below the top plate, and rotating arms are hinged on the left and right sides of the top frame. Five No. 2 hydraulic rod, centering plates are installed between the two sets of rotating arms near the left side of the top frame and between the two sets of rotating arms near the right side of the top frame, and two sets of hinged seats are fixed at the front and rear ends of the top frame, and support legs are installed on the hinged seats through pins, and buffer seats are fixed at the lower ends of the support legs. Fixed blocks are fixed at the front and rear ends of the top frame, and No. 2 hydraulic rod is connected between the fixed blocks and the support legs near the left and right ends of the top frame. Two sets of fixed plates are fixed at the lower end of the top frame, and clamping plates are hinged on the two sets of fixed plates, and a cylinder seat is fixed on the fixed plate, and a No. 3 hydraulic rod is hinged on the cylinder seat, and the piston rod of the No. 3 hydraulic rod is connected to the clamping plate through a pin.

[0007] In at least some embodiments,

[0008] A baffle is fixed to the upper end of the fixed frame, a buffer plate is installed on the baffle, and contact seats are installed on both left and right ends of the movable seat by bolts, a support is installed below the contact seat by bolts, a roller is installed on the support, and the roller is in rolling contact with the upper end of the fixed frame.

[0009] In at least some embodiments,

[0010] Two groups of rotating wheels are installed on the two groups of moving seats through bearings, a driving rod is fixed between the two groups of rotating wheels near the right end of the moving seat, a sprocket is fixed on the driving rod, a connecting beam is installed between the two groups of moving seats through bolts, a No. 1 motor is installed on the connecting beam through bolts, a sprocket is fixed on the output shaft of the No. 1 motor, and the sprocket on the output shaft of the No. 1 motor is connected to the sprocket on the driving rod through a chain.

[0011] In at least some embodiments,

[0012] A support frame is installed on the top plate by bolts, a gearbox is installed on the support frame by bolts, a No. 2 motor is installed on the gearbox by bolts, an output shaft of the No. 2 motor is connected to an input shaft of the gearbox, a sprocket is fixed on the output shaft of the gearbox, and a worm gear seat is installed on the top plate by bolts.

[0013] In at least some embodiments,

[0014] A screw is movable inside the worm gear seat, a worm wheel is threaded on the screw, the worm wheel is located inside the worm gear seat, a worm is mounted on the worm gear seat through a bearing, the worm is meshed with the worm wheel in the worm gear seat, the worm is connected to the input shaft of the worm gear seat, a sprocket is fixed on the input shaft of the worm gear seat, and a chain is connected between the gear on the output shaft of the No. 2 motor and the sprocket on the input shaft of the worm gear seat.

[0015] In at least some embodiments,

[0016] A connecting seat is fixed at the lower end of the screw rod, and two groups of cylinders are fixed on the top plate. Auxiliary rods are slid in the two groups of cylinders, and the lower ends of the two groups of auxiliary rods are fixed on the connecting seat.

[0017] In at least some embodiments,

[0018] A base frame is fixed at the lower end of the connection seat, a rotating column is installed at the lower end of the base frame through a bearing, a connection plate is fixed at the lower end of the rotating column, and positioning holes are arranged on the connection plate in a circular array.

[0019] In at least some embodiments,

[0020] A gear is fixed on the rotating column, a motor seat is installed on the base frame by bolts, a No. 3 motor is installed on the motor seat by bolts, a gear is fixed on the output shaft of the No. 3 motor, and the gear on the output shaft of the No. 3 motor meshes with the gear on the rotating column.

[0021] In at least some embodiments,

[0022] A No. 4 hydraulic rod is fixed on the base frame, a rail seat is installed on the lower end of the base frame through bolts, a lifting block is slid on the rail seat, and the lower end of the piston rod of the No. 4 hydraulic rod is fixedly connected to the upper end of the lifting block.

[0023] In at least some embodiments,

[0024] The lower end of the lifting block is fixed with an insertion rod, the insertion rod is inserted into the positioning hole, and the upper end of the top frame is fixedly connected to the lower end of the connecting plate.

[0025] The present invention provides a lifting sling with an anti-slip structure, which has the following beneficial effects:

[0026] The two groups of fixed plates in the present invention are both hinged with clamping plates, and a cylinder seat is fixed on the fixed plate, a No. 3 hydraulic rod is hinged on the cylinder seat, and the piston rod of the No. 3 hydraulic rod is connected to the clamping plate through a pin shaft. When in use, the No. 3 hydraulic rod is extended to clamp the steel structure with the clamping plate, and the left and right sides of the top frame are both hinged with rotating arms, and a No. 5 hydraulic rod is installed between the rotating arms and the top frame, and centering plates are installed between the two groups of rotating arms near the left side of the top frame and between the two groups of rotating arms near the right side of the top frame. By extending the No. 5 hydraulic rod, the two groups of centering plates are clamped on the two ends of the steel structure, so that the steel structure is located directly below the top frame. When the steel structure is clamped by the clamping plate, the center of gravity of the steel structure can be prevented from shifting, thereby improving the safety during lifting.

[0027] In addition, the front and rear ends of the top frame in the present invention are fixed with two sets of hinged seats, and support legs are installed on the hinged seats through pin shafts. Buffer seats are fixed at the lower ends of the support legs. Fixed blocks are fixed at the front and rear ends of the top frame. A No. 2 hydraulic rod is connected between the fixed blocks and the support legs near the left and right ends of the top frame. When placing the steel structure, the No. 2 hydraulic rod is extended to make the buffer seat contact with the placement ground, and the buffer seat first contacts with the ground to reduce the impact force, and then the No. 2 hydraulic rod is retracted to slowly retract the buffer seat, and the steel structure is placed on the ground to prevent damage to the steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0029] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0030] In the attached picture:

[0031] Figure 1 A schematic diagram showing the overall structure of the present application;

[0032] Figure 2 This application shows Figure 1 A schematic diagram of the enlarged structure of part A;

[0033] Figure 3 This application shows Figure 1 A schematic diagram of the enlarged structure of part B;

[0034] Figure 4 A schematic diagram of the structure of the mobile seat of the present application is shown;

[0035] Figure 5 This application shows Figure 4 A schematic diagram of the enlarged structure of the middle C part;

[0036] Figure 6 A schematic diagram of the structure of the chassis of the present application is shown;

[0037] Figure 7 A schematic diagram of the structure of the upper end of the top frame of the present application is shown;

[0038] Figure 8 A schematic diagram of the structure of the lower end of the top frame of the present application is shown;

[0039] Fig. 9 This application shows Figure 8 Schematic diagram of the enlarged structure of part D.

[0040] Reference numerals list

[0041] 1. Fixed frame; 11. Welding seat; 111. Articulated arm; 112. Bottom rod; 113. Clamping seat; 114. Moving wheel; 115. Connecting arm; 116. No. 1 hydraulic rod; 12. Stop rod; 121. Buffer plate;

[0042] 2. Moving seat; 21. Contact seat; 22. Support seat; 23. Driving rod; 24. Connecting beam; 241. No. 1 motor; 25. Top plate; 251. Support frame; 2511. Gearbox; 2512. No. 2 motor; 252. Worm gear seat; 2521. Screw rod; 2522. Connecting seat; 253. Cylinder; 2531. Auxiliary rod; 26. Base frame; 261. Rotating column; 262. Connecting plate; 2621. Positioning hole; 263. Motor seat; 2631. No. 3 motor; 264. No. 4 hydraulic rod; 265. Rail seat; 2651. Lifting block; 2652. Inserting rod;

[0043] 3. Top frame; 31. Rotating arm; 311. No. 5 hydraulic rod; 312. Centering plate; 32. Articulated seat; 321. Support leg; 322. Buffer seat; 33. Fixed block; 331. No. 2 hydraulic rod; 34. Fixed plate; 341. Clamping plate; 342. Cylinder seat; 343. No. 3 hydraulic rod. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Example 1: Please refer to Figures 1 to 9 :

[0046] The present invention provides a lifting sling with an anti-slip structure, comprising: a fixing frame 1;

[0047] Two groups of welding seats 11 are welded on the left and right sides of the fixed frame 1, and an articulated arm 111 is hinged at the lower end of the welding seat 11. A bottom rod 112 is fixed between the two groups of articulated arms 111 near the left end of the fixed frame 1 and between the two groups of articulated arms 111 near the right end of the fixed frame 1. A clamping seat 113 is installed on the bottom rod 112 by bolts, and a moving wheel 114 is installed on the lower end of the clamping seat 113 by bolts. A connecting arm 115 is hinged on the welding seat 11, and a No. 1 hydraulic rod 116 is installed between the connecting arm 115 and the articulated arm 111. Two groups of moving seats 2 are movable at the upper end of the fixed frame 1, and a top plate 25 is fixed to the upper end of the two groups of moving seats 2. A top frame 3 is arranged below the top plate 25, and a rotating arm 31 is hinged on the left and right sides of the top frame 3. A No. 5 hydraulic Rod 311, centering plates 312 are installed between the two groups of rotating arms 31 near the left side of the top frame 3 and between the two groups of rotating arms 31 near the right side of the top frame 3, and two groups of hinged seats 32 are fixed to the front and rear ends of the top frame 3, and support legs 321 are installed on the hinged seats 32 through pins, and buffer seats 322 are fixed to the lower ends of the support legs 321. Fixed blocks 33 are fixed to the front and rear ends of the top frame 3, and a No. 2 hydraulic rod 331 is connected between the fixed blocks 33 and the support legs 321 near the left and right ends of the top frame 3. Two groups of fixed plates 34 are fixed to the lower end of the top frame 3, and clamping plates 341 are hinged on the two groups of fixed plates 34, and cylinder seats 342 are fixed on the fixed plates 34, and a No. 3 hydraulic rod 343 is hinged on the cylinder seats 342, and the piston rod of the No. 3 hydraulic rod 343 is connected to the clamping plate 341 through a pin.

[0048] In the present disclosure,

[0049] A baffle 12 is fixed to the upper end of the fixed frame 1, and a buffer plate 121 is installed on the baffle 12, and contact seats 21 are installed on the left and right ends of the movable seat 2 by bolts, and a support 22 is installed below the contact seat 21 by bolts, and a roller is installed on the support 22, and the roller is in rolling contact with the upper end of the fixed frame 1, and two groups of rotating wheels are installed on the two groups of movable seats 2 through bearings, and a driving rod 23 is fixed between the two groups of rotating wheels near the right end of the movable seat 2, and a sprocket is fixed on the driving rod 23, and a connecting beam 24 is installed between the two groups of movable seats 2 by bolts, and a No. 1 motor 241 is installed on the connecting beam 24 by bolts, and a sprocket is fixed on the output shaft of the No. 1 motor 241, and the sprocket on the output shaft of the No. 1 motor 241 is connected to the sprocket on the driving rod 23 by a chain, and its function is: running the No. 1 motor 241 makes its output shaft drive the driving rod 23 to rotate through the chain, so as to realize the left and right movement of the movable seat 2.

[0050] Embodiment 2, based on embodiment 1,

[0051] A support frame 251 is installed on the top plate 25 by bolts, a gearbox 2511 is installed on the support frame 251 by bolts, a second motor 2512 is installed on the gearbox 2511 by bolts, the output shaft of the second motor 2512 is connected to the input shaft of the gearbox 2511, a sprocket is fixed on the output shaft of the gearbox 2511, a worm gear seat 252 is installed on the top plate 25 by bolts, a screw rod 2521 is movable in the worm gear seat 252, a worm wheel is threadedly screwed on the screw rod 2521, the worm wheel is located inside the worm gear seat 252, a worm is installed on the worm gear seat 252 by a bearing, the worm is meshed with the worm wheel in the worm gear seat 252, and the worm and the worm wheel The input shaft of the seat 252 is connected, a sprocket is fixed on the input shaft of the worm gear seat 252, a chain is connected between the gear on the output shaft of the second motor 2512 and the sprocket on the input shaft of the worm gear seat 252, a connecting seat 2522 is fixed to the lower end of the lead screw 2521, and two groups of cylinders 253 are fixed on the top plate 25, auxiliary rods 2531 are slid in the two groups of cylinders 253, and the lower ends of the two groups of auxiliary rods 2531 are fixed on the connecting seat 2522. Their function is: run the second motor 2512 so that its output shaft drives the input shaft of the worm gear seat 252 to rotate through the chain, and the worm on the input shaft drives the worm wheel to rotate, thereby realizing the lifting and lowering of the lead screw 2521.

[0052] Embodiment 3, based on Embodiment 1 and Embodiment 2,

[0053] The lower end of the connecting seat 2522 is fixed with a base frame 26, the lower end of the base frame 26 is installed with a rotating column 261 through a bearing, the lower end of the rotating column 261 is fixed with a connecting plate 262, the connecting plate 262 is provided with a positioning hole 2621, the positioning holes 2621 are arranged in a circular array on the connecting plate 262, a gear is fixed on the rotating column 261, a motor base 263 is installed on the base frame 26 through bolts, a No. 3 motor 2631 is installed on the motor base 263 through bolts, a gear is fixed on the output shaft of the No. 3 motor 2631, the gear on the output shaft of the No. 3 motor 2631 is meshed with the gear on the rotating column 261, a No. 4 hydraulic rod 264 is fixed on the base frame 26, and the lower end of the base frame 26 is connected with a rotating column 261. A rail seat 265 is installed by bolts, and a lifting block 2651 is slidably arranged on the rail seat 265. The lower end of the piston rod of the No. 4 hydraulic rod 264 is fixedly connected to the upper end of the lifting block 2651, and an insertion rod 2652 is fixed to the lower end of the lifting block 2651. The insertion rod 2652 is inserted into the positioning hole 2621, and the upper end of the top frame 3 is fixedly connected to the lower end of the connecting disk 262. Its functions are: running the No. 3 motor 2631 to rotate the rotating column 261, so that the connecting disk 262 rotates, extending the No. 4 hydraulic rod 264 to lower the lifting block 2651, and inserting the insertion rod 2652 at the lower end of the lifting block 2651 into the positioning hole 2621, so as to realize the braking of the connecting disk 262 and prevent the connecting disk 262 from shaking.

[0054] The working principle of this embodiment is as follows: when in use, the No. 5 hydraulic rod 311 is extended to clamp the two ends of the steel structure with the two sets of centering plates 312, so that the steel structure is located directly below the top frame 3, the No. 3 hydraulic rod 343 is extended to clamp the clamping plate 341 to clamp the steel structure, the No. 2 motor 2512 is operated to make its output shaft drive the input shaft of the worm gear seat 252 to rotate through the chain, and the worm on the input shaft drives the worm gear to rotate, so that the screw rod 2521 is lifted and lowered, and the steel structure is lifted and lowered, and the No. 1 motor is operated. The output shaft of the motor 241 drives the driving rod 23 to rotate through the chain, so that the movable seat 2 can move left and right, and the steel structure can move left and right. The No. 3 motor 2631 is operated to rotate the rotating column 261, so that the connecting disk 262 can rotate, so as to adjust the direction of the steel structure. The No. 4 hydraulic rod 264 is extended to lower the lifting block 2651, so that the insertion rod 2652 at the lower end of the lifting block 2651 is inserted into the positioning hole 2621, so as to brake the connecting disk 262 and prevent the connecting disk 262 from shaking.

[0055] In this article, there are a few points to note:

[0056] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0057] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0058] The above are only specific implementation methods of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be covered by the protection scope of the present disclosure.

Claims

1. A lifting sling with an anti-slip structure, comprising: The fixing frame (1) is characterized in that: Two groups of welding seats (11) are welded on both left and right sides of the fixing frame (1), and the lower ends of the welding seats (11) are hinged with hinged arms (111). A bottom rod (112) is fixed between the two groups of hinged arms (111) near the left end of the fixing frame (1) and between the two groups of hinged arms (111) near the right end of the fixing frame (1), and a clamping seat (113) is installed on the bottom rod (112) by bolts, and a moving wheel (114) is installed at the lower end of the clamping seat (113) by bolts. ), a connecting arm (115) is hingedly connected to the welding seat (11), a No. 1 hydraulic rod (116) is installed between the connecting arm (115) and the hinged arm (111), two groups of movable seats (2) are movable at the upper end of the fixed frame (1), a top plate (25) is fixed at the upper end of the two groups of movable seats (2), a top frame (3) is arranged below the top plate (25), a rotating arm (31) is hingedly connected to the left and right sides of the top frame (3), and a No. 5 hydraulic rod (116) is installed between the rotating arm (31) and the top frame (3). A pressure rod (311), a centering plate (312) is installed between the two groups of rotating arms (31) on the left side of the top frame (3) and between the two groups of rotating arms (31) on the right side of the top frame (3), and two groups of hinge seats (32) are fixed at the front and rear ends of the top frame (3), and a support leg (321) is installed on the hinge seat (32) through a pin shaft, and a buffer seat (322) is fixed at the lower end of the support leg (321), and a fixing block (33) is fixed at the front and rear ends of the top frame (3). A No. 2 hydraulic rod (331) is connected between the block (33) and the supporting legs (321) near the left and right ends of the top frame (3); two groups of fixed plates (34) are fixed at the lower end of the top frame (3); a clamping plate (341) is hinged on the two groups of fixed plates (34); a cylinder seat (342) is fixed on the fixed plate (34); a No. 3 hydraulic rod (343) is hinged on the cylinder seat (342); and a piston rod of the No. 3 hydraulic rod (343) is connected to the clamping plate (341) through a pin shaft.

2. The lifting sling with anti-slip structure according to claim 1, characterized in that: A baffle (12) is fixed to the upper end of the fixed frame (1), a buffer plate (121) is installed on the baffle (12), and contact seats (21) are installed on both left and right ends of the movable seat (2) by bolts, a support (22) is installed below the contact seat (21) by bolts, a roller is installed on the support (22), and the roller is in rolling contact with the upper end of the fixed frame (1).

3. The hoisting sling with an anti-slip structure according to claim 2, characterized in that: Two groups of rotating wheels are mounted on the two groups of moving seats (2) via bearings, a driving rod (23) is fixed between the two groups of rotating wheels near the right end of the moving seat (2), a sprocket is fixed on the driving rod (23), a connecting beam (24) is mounted between the two groups of moving seats (2) via bolts, a No. 1 motor (241) is mounted on the connecting beam (24) via bolts, a sprocket is fixed on the output shaft of the No. 1 motor (241), and the sprocket on the output shaft of the No. 1 motor (241) is connected to the sprocket on the driving rod (23) via a chain.

4. The hoisting sling with an anti-slip structure according to claim 1, characterized in that: A support frame (251) is mounted on the top plate (25) by bolts, a gearbox (2511) is mounted on the support frame (251) by bolts, a second motor (2512) is mounted on the gearbox (2511) by bolts, an output shaft of the second motor (2512) is connected to an input shaft of the gearbox (2511), a sprocket is fixed on the output shaft of the gearbox (2511), and a worm gear seat (252) is mounted on the top plate (25) by bolts.

5. The hoisting sling with an anti-slip structure according to claim 4, characterized in that: A screw rod (2521) is movable inside the worm gear seat (252), a worm wheel is threadedly screwed on the screw rod (2521), the worm wheel is located inside the worm gear seat (252), a worm is mounted on the worm gear seat (252) via a bearing, the worm is meshed with the worm wheel inside the worm gear seat (252), the worm is connected to the input shaft of the worm gear seat (252), a sprocket is fixed on the input shaft of the worm gear seat (252), and a chain is connected between the gear on the output shaft of the second motor (2512) and the sprocket on the input shaft of the worm gear seat (252).

6. The hoisting sling with an anti-slip structure according to claim 5, characterized in that: A connecting seat (2522) is fixed at the lower end of the screw rod (2521), and two groups of cylinders (253) are fixed on the top plate (25), auxiliary rods (2531) are slidably disposed in the two groups of cylinders (253), and the lower ends of the two groups of auxiliary rods (2531) are fixed on the connecting seat (2522).

7. The hoisting sling with an anti-slip structure according to claim 6, characterized in that: A base frame (26) is fixed at the lower end of the connection seat (2522); a rotating column (261) is installed at the lower end of the base frame (26) via a bearing; a connection disk (262) is fixed at the lower end of the rotating column (261); positioning holes (2621) are arranged on the connection disk (262) in a circular array.

8. The hoisting sling with an anti-slip structure according to claim 7, characterized in that: A gear is fixed on the rotating column (261), a motor seat (263) is installed on the bottom frame (26) by bolts, a No. 3 motor (2631) is installed on the motor seat (263) by bolts, a gear is fixed on the output shaft of the No. 3 motor (2631), and the gear on the output shaft of the No. 3 motor (2631) meshes with the gear on the rotating column (261).

9. The hoisting sling with an anti-slip structure according to claim 8, characterized in that: A fourth hydraulic rod (264) is fixed on the base frame (26); a rail seat (265) is installed on the lower end of the base frame (26) by bolts; a lifting block (2651) is slidably mounted on the rail seat (265); and the lower end of the piston rod of the fourth hydraulic rod (264) is fixedly connected to the upper end of the lifting block (2651).

10. The hoisting sling with an anti-slip structure according to claim 9, characterized in that: The lower end of the lifting block (2651) is fixed with an insertion rod (2652), the insertion rod (2652) is inserted into the positioning hole (2621), and the upper end of the top frame (3) is fixedly connected to the lower end of the connecting plate (262).

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