Lifting hydraulic cylinder with pull rod climbing auxiliary structure
By designing the auxiliary structure of the pull rod climbing and climbing ladder on the hydraulic cylinder, the safety and efficiency problems of the staff when operating at high altitudes are solved, and the safe climbing and moving effect of the hydraulic cylinder is achieved.
Patent Information
- Application Number
- CN202421617608.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-09
AI Technical Summary
When existing hydraulic cylinders increase the height of building materials, it is difficult for staff to move to a height safely, affecting work efficiency.
A lifting hydraulic cylinder with a pull rod climbing auxiliary structure is designed, and the staff can climb to a high place safely by setting a detachable lifting structure and a retractable climbing ladder at the drive end.
It realizes the assisted climbing and movement of the hydraulic cylinder, and improves the operating safety and working efficiency of staff at high altitudes.
Smart Images

Figure CN222757908U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure, belonging to the technical field of lifting hydraulic cylinders. Background Art
[0002] The principle of hydraulic transmission is to use oil as the working medium, transmit motion through the change of sealed volume, and transmit power through the pressure inside the oil to achieve the lifting effect. The pressure applied at any point on a certain volume of liquid can be transmitted equally in all directions. This means that when multiple hydraulic cylinders are used, each hydraulic cylinder will pull or push at its own speed, and these speeds depend on the pressure required to move the load. In construction, it often involves the hydraulic push height transportation of building materials;
[0003] Since the hydraulic cylinder now controls the flow of liquid through internal kinetic energy to generate hydraulic pressure, the piston telescopic rod is pushed in the direction where it needs to move, thereby completing the effect of lifting and extending the distance. However, it is inconvenient for subsequent staff to move the position on the platform after lifting, which affects the effect of staff moving from the bottom to the hydraulic cylinder lifting height position, bringing certain adverse effects to actual use, and therefore needs to be improved. Utility Model Content
[0004] The purpose of the utility model is to provide a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure. The utility model arranges a detachable and extendable lifting structure on the lifting hydraulic cylinder to perform free control and adjustment of the height, and the retractable climbing ladder controlled by the driving end can assist the staff to climb to a high place, thereby achieving the effect of assisting safe climbing and movement at the lifting hydraulic cylinder, so as to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure comprises a mounting platform, a hydraulic cylinder body is fixedly installed inside the mounting platform, a first hollow branch pipe is fixedly connected to the top of the mounting platform, a second hollow branch pipe is sealed and clamped at the top of the inner wall of the first hollow branch pipe, a locking assembly is connected to the surface of the second hollow branch pipe, a piston support rod is slidably connected to the inside of the second hollow branch pipe, and the inner wall of the piston support rod is slidably connected to the inner wall of the first hollow branch pipe, a clamping assembly is connected to the top of the piston support rod, a lifting frame is connected to the surface of the clamping assembly, an adjusting frame is fixedly connected to the bottom of the lifting frame, a driving motor is fixedly installed on the side of the adjusting frame through a fixing frame, and the driving motor The output end of the driving motor is fixedly connected to a storage wheel, an electric push rod is fixedly installed inside the storage wheel, the output end of the electric push rod is fixedly connected to an electromagnetic suction plate, the surface of the storage wheel is connected to a climbing ladder, the side of the climbing ladder is fixedly connected to a constraint slot plate, the surface of the top of the mounting platform is fixedly installed with an electric cylinder, the output end of the electric cylinder is fixedly connected to a constraint card plate, the surface of the constraint card plate and the inner wall of the constraint slot plate are clamped and adapted, a channel is opened on the rear side of the lifting frame near its inner wall, the interior of the channel is rotatably connected to a switch door through a hinge, the side of the inner wall of the channel is fixedly connected to a blocking baffle, the upper surface of the blocking baffle abuts against the bottom of the switch door.
[0007] Furthermore, the end faces of the first hollow branch pipe and the second hollow branch pipe are both fixedly connected with sealing rubber rings, and two adjacent sealing rubber rings are connected with sealing sleeves.
[0008] Furthermore, the locking assembly includes a locking locking sleeve and a locking card plate, the locking locking sleeve is fixedly connected to the surface of the first hollow branch pipe, the locking card plate is fixedly connected to the surface of the second hollow branch pipe, the surface of the locking card plate and the inner wall of the locking locking groove are clamped and adapted, and the interior of the locking locking sleeve and the interior of the locking card plate are threadedly connected with a positioning screw through an internal thread groove.
[0009] Furthermore, the card-connecting assembly includes a magnetic card plate and a magnetic card slot, the magnetic card plate is fixedly connected to the top of the piston support rod, the magnetic card slot is opened on the bottom of the lifting frame, and the inner wall of the magnetic card slot is magnetically connected to the surface of the magnetic card plate.
[0010] Furthermore, both sides of the climbing ladder are tough ropes, the sides of the tough ropes are connected to foot pedals, and the upper surfaces of the foot pedals are fixedly connected to anti-slip pads.
[0011] Furthermore, a plug-in board is fixedly connected to the top of the climbing ladder, and a plug-in slot is provided on the upper surface of the mounting platform, and the inner wall of the plug-in slot is snap-fitted and adapted to the surface of the plug-in board.
[0012] Furthermore, a suspension steel rope is connected to the middle of the mounting platform near its upper surface through a bolt ring, the bottom of the lifting frame and the top of the suspension steel rope are fixedly connected, the outer part of the suspension steel rope is sleeved with a mobile sleeve frame with a battery, the side of the mobile sleeve frame is fixedly connected with a connecting rope, the inner wall of the mobile sleeve frame is rotatably connected to a guide wheel with a speed sensor through a bearing, an electric telescopic rod is fixedly installed on the inner wall of the mobile sleeve frame, the output end of the electric telescopic rod is fixedly connected with an anti-slip clamping plate, and the surface of the anti-slip clamping plate and the surface of the suspension steel rope are in anti-slip contact.
[0013] The beneficial effects of the utility model are:
[0014] 1. In the utility model, the second hollow branch pipe is inserted into the interior of the first hollow branch pipe, and the sealing rubber ring is added to enhance the sealing connection effect of the first hollow branch pipe and the second hollow branch pipe. The first hollow branch pipe can be inserted into the interior of the second hollow branch pipe for secondary fixation by setting the locking card plate and the locking card sleeve, and then the positioning screw is rotated and connected to the internal internal thread groove of the locking card plate and the locking card sleeve. The lifting height can be adapted to the use according to the needs, and the appropriate number of hollow branches can be connected to the hollow branch pipe below. The liquid in the hydraulic cylinder body generates hydraulic pressure to push the piston support rod upward from the hollow branch pipe, and the lifting frame can be slowly pushed up to a suitable height;
[0015] 2. In the utility model, when it is necessary to assist the staff to climb up, the motor can be driven to drive the storage wheel to rotate to lower the climbing ladder. When the climbing ladder moves to the top of the installation platform, the plug-in slot and the plug-in plate can be connected to perform basic positioning of the bottom of the climbing ladder, and then the electric cylinder is operated to drive the constraint card plate to plug into the constraint slot plate for positioning and constraint, and the operation of the electric push rod in the storage wheel can drive the electromagnetic suction plate to abut against the inner wall of the adjustment frame for electromagnetic suction positioning, thereby ensuring the stability of the upper and lower positions of the climbing ladder, so that subsequent staff can climb from bottom to top;
[0016] 3. In the utility model, after the hydraulic control of the lifting frame is adjusted to a stable height, the hanging steel rope of appropriate length can be tightened and bolted to fix it, and the connecting rope on the mobile frame can be connected to the worn safety clothing. If it moves up slowly, it can drive the mobile frame to move on the hanging steel rope, so that the guide wheel can roll slowly. If it moves down suddenly and quickly, the guide wheel will guide and rotate quickly. The speed sensor of the guide wheel will sense and notify the electric telescopic rod to control the anti-skid clamping plate to move. Multiple anti-skid clamping plates move to tighten and constrain the hanging steel rope, which ensures the fixed-point positioning constraint of the mobile frame on the hanging steel rope, can play a certain degree of anti-fall protection role, and achieves the effect of assisting safe climbing movement at the lifting hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.
[0018] Figure 1 This is a schematic diagram of the overall structure of a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure of the utility model;
[0019] Figure 2 It is a front cross-sectional view of a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure of the utility model;
[0020] Figure 3 It is a front cross-sectional view of an adjusting frame in a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure of the utility model;
[0021] Figure 4 It is a front cross-sectional view of a movable sleeve frame in a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure of the utility model;
[0022] Figure 5 This is an enlarged view of position A of a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure of the utility model;
[0023] Figure 6 This is an enlarged view of position B of a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure of the utility model;
[0024] Figure 7 This is an enlarged view of the C position of a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure of the utility model;
[0025] Figure 8 This is an enlarged view of the D position of a lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure of the utility model;
[0026] Numbers in the figure: 1. mounting table; 2. hydraulic cylinder body; 3. first hollow branch pipe; 4. second hollow branch pipe; 5. piston support rod; 6. lifting frame; 7. adjustment frame; 8. driving motor; 9. storage wheel; 10. electric push rod; 11. electromagnetic suction plate; 12. climbing ladder; 13. constraint slot plate; 14. electric cylinder; 15. constraint card plate; 16. door opening and closing; 17. blocking baffle; 18. sealing rubber ring; 19. locking card sleeve; 20. locking card plate; 21. positioning screw; 22. magnetic card plate; 23. magnetic card slot; 24. anti-skid pad; 25. plug-in plate; 26. plug-in slot; 27. hanging steel rope; 28. moving sleeve frame; 29. connecting rope; 30. guide wheel; 31. electric telescopic rod; 32. anti-skid clamping plate. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Example 1 Please refer to Figure 1-Figure 8 , the utility model provides a technical solution:
[0029] A lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure comprises a mounting platform 1, a hydraulic cylinder body 2 is fixedly installed inside the mounting platform 1, a first hollow branch pipe 3 is fixedly connected to the top of the mounting platform 1, a second hollow branch pipe 4 is sealed and clamped at the top of the inner wall of the first hollow branch pipe 3, a locking assembly is connected to the surface of the second hollow branch pipe 4, a piston support rod 5 is slidably connected to the inside of the second hollow branch pipe 4, and the inner wall of the piston support rod 5 is slidably connected to the inner wall of the first hollow branch pipe 3, a clamping assembly is connected to the top of the piston support rod 5, a lifting frame 6 is connected to the surface of the clamping assembly, an adjusting frame 7 is fixedly connected to the bottom of the lifting frame 6, a driving motor 8 is fixedly installed on the side of the adjusting frame 7 through a fixing frame, and the output end of the driving motor 8 is fixedly connected to the A storage wheel 9 is fixedly connected to the storage wheel 9, and an electric push rod 10 is fixedly installed inside the storage wheel 9. The output end of the electric push rod 10 is fixedly connected to an electromagnetic suction plate 11. The surface of the storage wheel 9 is connected to a climbing ladder 12, and the side of the climbing ladder 12 is fixedly connected to a constraint slot plate 13. An electric cylinder 14 is fixedly installed on the surface of the top of the mounting platform 1, and the output end of the electric cylinder 14 is fixedly connected to a constraint card plate 15. The surface of the constraint card plate 15 is clamped and adapted to the inner wall of the constraint slot plate 13. A channel is opened on the rear side of the lifting frame 6 near its inner wall, and a switch door 16 is rotatably connected to the inside of the channel through a hinge, and a blocking baffle 17 is fixedly connected to the side of the inner wall of the channel, and the upper surface of the blocking baffle 17 abuts against the bottom of the switch door 16.
[0030] Specifically, Figure 1-Figure 8 As shown, the end faces of the first hollow branch pipe 3 and the second hollow branch pipe 4 are fixedly connected with sealing rubber rings 18, and the two adjacent sealing rubber rings 18 are sealed and connected with sleeves. The addition of the sealing rubber rings 18 can enhance the sealing connection effect of the first hollow branch pipe 3 and the second hollow branch pipe 4.
[0031] Furthermore, both sides of the climbing ladder 12 are tough ropes, the sides of the tough ropes are connected with foot pedals, and the upper surfaces of the foot pedals are fixedly connected with anti-skid pads 24, and the addition of the anti-skid pads 24 can play the role of anti-skid foot pedals.
[0032] Specifically, Figure 1-Figure 8 As shown, the locking assembly includes a locking locking sleeve 19 and a locking card plate 20, the locking locking sleeve 19 is fixedly connected to the surface of the first hollow branch pipe 3, the locking card plate 20 is fixedly connected to the surface of the second hollow branch pipe 4, the surface of the locking card plate 20 and the inner wall of the locking locking groove are clamped and adapted, the interior of the locking locking sleeve 19 and the interior of the locking card plate 20 are threadedly connected with a positioning screw 21 through an internal thread groove, through the arrangement of the locking card plate 20 and the locking locking sleeve 19, the first hollow branch pipe 3 can be inserted into the interior of the second hollow branch pipe 4 for secondary fixation, and then the positioning screw 21 is rotated and connected to the internal internal thread groove of the locking card plate 20 and the locking locking sleeve 19 for locking.
[0033] Furthermore, the snap-on assembly includes a magnetic card plate 22 and a magnetic card slot 23, wherein the magnetic card plate 22 is fixedly connected to the top of the piston support rod 5, and the magnetic card slot 23 is opened on the bottom of the lifting frame 6, and the inner wall of the magnetic card slot 23 and the surface of the magnetic card plate 22 are magnetically snap-connected.
[0034] Furthermore, a plug plate 25 is fixedly connected to the top of the climbing ladder 12, and a plug groove 26 is opened on the upper surface of the mounting platform 1. The inner wall of the plug groove 26 and the surface of the plug plate 25 are snap-fitted and adapted. The plug plate 25 and the plug groove 26 are docked to basically position the bottom of the climbing ladder 12.
[0035] Example 2 Please refer to Figure 1-Figure 8The difference between this embodiment and the first embodiment is that: a hanging steel rope 27 is connected to the middle of the upper surface of the mounting platform 1 through a bolt ring, the bottom of the lifting frame 6 is fixedly connected to the top of the hanging steel rope 27, the outer part of the hanging steel rope 27 is sleeved with a mobile sleeve frame 28 with a battery, the side of the mobile sleeve frame 28 is fixedly connected with a connecting rope 29, the inner wall of the mobile sleeve frame 28 is rotatably connected to a guide wheel 30 with a speed sensor through a bearing, the inner wall of the mobile sleeve frame 28 is fixedly installed with an electric telescopic rod 31, the output end of the electric telescopic rod 31 is fixedly connected with an anti-skid clamping plate 32, and the surface of the anti-skid clamping plate 32 is in anti-skid contact with the surface of the hanging steel rope 27, and when it is After the lifting frame 6 has completed the stable height, the hanging steel rope 27 of appropriate length can be tightened and bolted, and the connecting rope 29 on the movable frame 28 can be connected to the worn safety clothing. If it is moved up slowly, the movable frame 28 can be driven to move on the hanging steel rope 27, so that the guide wheel 30 can roll slowly. If it is moved down suddenly and rapidly, the guide wheel 30 can be guided to rotate quickly. The speed sensor of the guide wheel 30 senses and notifies the electric telescopic rod 31 to control the anti-skid clamping plate 32 to move. Multiple anti-skid clamping plates 32 move to tighten the hanging steel rope 27, thereby ensuring the fixed-point positioning constraint of the movable frame 28 on the hanging steel rope 27, which can play a certain degree of anti-fall protection role.
[0036] Working principle of the utility model: when in use, the staff can use the mounting seat to install the entire lifting hydraulic cylinder. After the mounting seat and the internal hydraulic cylinder body 2 are positioned and installed, the hollow branch pipes of appropriate degree and number can be connected to the hollow branch pipes below according to the lifting height to be used, that is, the second hollow branch pipe 4 is inserted into the interior of the first hollow branch pipe 3. The addition of the sealing rubber ring 18 can enhance the sealing connection between the first hollow branch pipe 3 and the second hollow branch pipe 4. By setting the locking card plate 20 and the locking card sleeve 19, the second hollow branch pipe 4 can be connected to the second hollow branch pipe 4. A hollow branch pipe 3 can be inserted into the interior of the second hollow branch pipe 4 for secondary fixation, and then the positioning screw 21 is rotated and connected to the internal internal thread groove of the locking card plate 20 and the locking card sleeve 19. The liquid in the hydraulic cylinder body 2 generates hydraulic pressure to push the piston support rod 5 upward from the hollow branch pipe, and the lifting frame 6 can be slowly lifted upward. When it is necessary to assist the staff to climb up, the motor 8 can be driven to drive the storage wheel 9 to rotate to lower the climbing ladder 12. When the climbing ladder 12 moves to the top of the mounting platform 1, it can be connected to the plug plate 25 and the plug slot 26 for climbing. The bottom of the ladder 12 is basically positioned, and then the electric cylinder 14 is operated to drive the constraint card plate 15 to be inserted into the constraint slot plate 13 for positioning and constraint, and the operation of the electric push rod 10 in the storage wheel 9 can drive the electromagnetic suction plate 11 to abut against the inner wall of the adjustment frame 7 for electromagnetic suction positioning, ensuring the upper and lower position positioning of the climbing ladder 12 Stable, so that subsequent workers can climb from bottom to top, after the lifting frame 6 has completed a stable height, the appropriate length of the hanging steel rope 27 can be tightened and bolted, and the connecting rope 29 on the mobile sleeve frame 28 is connected to the safety clothing worn, if slowly The upward movement can drive the movable sleeve frame 28 to move on the suspension steel rope 27, so that the guide wheel 30 can roll slowly. If it moves downward suddenly and quickly, the guide wheel 30 will be guided to rotate quickly. The speed sensor of the guide wheel 30 will sense and notify the electric telescopic rod 31 to control the anti-skid clamping plate 32 to move. The multiple anti-skid clamping plates 32 move to tighten the suspension steel rope 27, which ensures the fixed-point positioning constraint of the movable sleeve frame 28 on the suspension steel rope 27, can play a certain degree of anti-fall protection role, and achieve the effect of assisting safe climbing movement at the lifting hydraulic cylinder.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A lifting hydraulic cylinder provided with a pull rod climbing auxiliary structure, comprising a mounting platform (1), wherein a hydraulic cylinder body (2) is fixedly mounted inside the mounting platform (1), characterized in that: The top of the mounting platform (1) is fixedly connected with a first hollow branch pipe (3); the top of the inner wall of the first hollow branch pipe (3) is sealed and clamped with a second hollow branch pipe (4); the surface of the second hollow branch pipe (4) is connected with a locking assembly; the interior of the second hollow branch pipe (4) is slidably connected with a piston support rod (5); the inner wall of the piston support rod (5) and the inner wall of the first hollow branch pipe (3) are slidably connected; the top of the piston support rod (5) is connected with a clamping assembly; the surface of the clamping assembly is connected with a lifting frame (6); the bottom of the lifting frame (6) is fixedly connected with an adjustment frame (7); a driving motor (8) is fixedly installed on the side of the adjustment frame (7) through a fixing frame; the output end of the driving motor (8) is fixedly connected with a storage wheel (9); the interior of the storage wheel (9) is fixedly installed with a An electric push rod (10), the output end of the electric push rod (10) is fixedly connected to an electromagnetic suction plate (11), the surface of the storage wheel (9) is connected to a climbing ladder (12), the side of the climbing ladder (12) is fixedly connected to a constraint slot plate (13), the surface of the top of the mounting platform (1) is fixedly installed with an electric cylinder (14), the output end of the electric cylinder (14) is fixedly connected to a constraint card plate (15), the surface of the constraint card plate (15) and the inner wall of the constraint slot plate (13) are snap-fitted and adapted, a channel is opened on the rear side of the lifting frame (6) near its inner wall, the interior of the channel is rotatably connected to a switch door (16), the side of the inner wall of the channel is fixedly connected to a blocking baffle (17), the upper surface of the blocking baffle (17) is in contact with the bottom of the switch door (16).
2. A lifting hydraulic cylinder with a pull rod climbing auxiliary structure according to claim 1, characterized in that: The end surface of the first hollow branch pipe (3) and the end surface of the second hollow branch pipe (4) are both fixedly connected with a sealing rubber ring (18), and two adjacent sealing rubber rings (18) are connected by a sealing sleeve.
3. The lifting hydraulic cylinder with a pull rod climbing auxiliary structure according to claim 1, characterized in that: The locking assembly comprises a locking locking sleeve (19) and a locking clamping plate (20), wherein the locking locking sleeve (19) is fixedly connected to the surface of the first hollow branch pipe (3), and the locking clamping plate (20) is fixedly connected to the surface of the second hollow branch pipe (4), the surface of the locking clamping plate (20) and the inner wall of the locking locking groove are clamped and adapted, and the interior of the locking locking sleeve (19) and the interior of the locking clamping plate (20) are threadedly connected with a positioning screw (21) through an internal thread groove.
4. The lifting hydraulic cylinder with a pull rod climbing auxiliary structure according to claim 1, characterized in that: The snap-on assembly comprises a magnetic card plate (22) and a magnetic card slot (23), wherein the magnetic card plate (22) is fixedly connected to the top of the piston support rod (5), and the magnetic card slot (23) is provided on the bottom of the lifting frame (6), and the inner wall of the magnetic card slot (23) and the surface of the magnetic card plate (22) are magnetically snap-on.
5. The lifting hydraulic cylinder with a pull rod climbing auxiliary structure according to claim 1, characterized in that: Both sides of the climbing ladder (12) are tough ropes, the sides of the tough ropes are connected to foot pedals, and the upper surfaces of the foot pedals are fixedly connected to anti-slip pads (24).
6. The lifting hydraulic cylinder with a pull rod climbing auxiliary structure according to claim 1, characterized in that: A plug-in plate (25) is fixedly connected to the top of the climbing ladder (12), and a plug-in slot (26) is provided on the upper surface of the mounting platform (1), wherein the inner wall of the plug-in slot (26) and the surface of the plug-in plate (25) are snap-fitted and adapted.
7. The lifting hydraulic cylinder with a pull rod climbing auxiliary structure according to claim 1, characterized in that: A suspension steel rope (27) is connected to the middle of the mounting platform (1) near its upper surface through a bolt ring, the bottom of the lifting frame (6) and the top of the suspension steel rope (27) are fixedly connected, the outer portion of the suspension steel rope (27) is sleeved with a mobile sleeve frame (28) with a battery, the side of the mobile sleeve frame (28) is fixedly connected with a connecting rope (29), the inner wall of the mobile sleeve frame (28) is rotatably connected to a guide wheel (30) with a speed sensor through a bearing, the inner wall of the mobile sleeve frame (28) is fixedly installed with an electric telescopic rod (31), the output end of the electric telescopic rod (31) is fixedly connected with an anti-skid clamping plate (32), and the surface of the anti-skid clamping plate (32) and the surface of the suspension steel rope (27) are in anti-skid contact.