Steel wire rope anti-falling device

Abstract

The utility model provides a steel wire rope anti-drop device, which relates to the technical field of steel wire rope anti-drop, and comprises a shell, the inner wall of the shell is rotatably connected with a pulley, the bottom surface of the shell is fixedly provided with a lifting hook, the inner side of the shell is fixedly provided with a connecting plate, and the top surface of the connecting plate is fixedly provided with a vertical block; a sliding plate is arranged on the side face of the vertical block in a penetrating mode and connected with the vertical block in a sliding mode. Through the design of the tension spring and the back block, when the steel wire rope pulls the lifting hook, the tension spring can pull the back block to further drive the sliding plate and the mounting frame to move, so that the mounting frame drives the extrusion wheel to abut against the steel wire rope on the pulley, and the process can effectively reduce the shaking of the steel wire rope when the steel wire rope lifts a heavy object and improve the lifting stability; and meanwhile, the extrusion wheel can limit the position of the steel wire rope, the steel wire rope is prevented from being disengaged from the pulley, the correct position of the steel wire rope on the pulley is ensured, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire rope anti - shedding, in particular to a wire rope anti - shedding device. Background Technique

[0002] The publicly - known CN214192236U discloses a wire rope anti - shedding device for a crane, including a support frame. A support rod is arranged in the middle of the support frame. A pulley is arranged on the outer surface of the support rod. Limiting plates are arranged at the front and rear ends of the support frame. The support frame and a square rod are connected by bolts. A hook is arranged at the lower end of the support frame. A hollow rod is hinged to the upper end inside the hook. A spring is slidably connected inside the hollow rod. A sliding block is slidably connected inside the hollow rod. A clamping rod is fixedly connected to the lower end of the sliding block. A clamping groove is arranged at the lower end of the hook. The lower end of the clamping rod is clamped with the clamping groove. Although this kind of wire rope anti - shedding device fixes the rope for binding and lifting items, it can effectively prevent the items from falling off and avoid the phenomenon of injuring workers. However, for this kind of wire rope anti - shedding device, the wire rope is prone to jitter when lifting or lowering heavy objects, resulting in an unstable lifting process. This kind of jitter not only affects the accuracy of operation but also may cause danger during the lifting process. Therefore, improvement is needed. Content of the Utility Model

[0003] The purpose of the utility model is to solve the technical problems raised in the above - mentioned background technique.

[0004] The utility model adopts the following technical scheme: A wire rope anti - shedding device, including a housing. A pulley is rotatably connected to the inner wall of the housing. A hook is fixedly installed on the bottom surface of the housing. A connecting plate is fixedly installed inside the housing. A vertical block is fixedly installed on the top surface of the connecting plate. A sliding plate penetrates through the side surface of the vertical block, and the sliding plate is slidably connected to the vertical block. A back block is fixedly installed at one end of the sliding plate. An installation frame is fixedly installed at the other end of the sliding plate. An extrusion wheel is rotatably connected to the inside of the installation frame. A tension spring is sleeved on the surface of the sliding plate. A side block is fixedly installed on the surface of the back block. A friction pad is fixedly installed on the side surface of the side block.

[0005] Preferably, one end of the tension spring is fixedly connected to the back block, and the other end of the tension spring is fixedly connected to the vertical block. Here, the tension spring can be stably installed.

[0006] Preferably, the friction pad is made of natural rubber and is in contact with the back block.

[0007] Preferably, the installation frame is in a "U" - shaped structure, and the housing is in a triangular structure.

[0008] Preferably, a chamfer is provided on the top surface of the housing; here, burrs can be removed.

[0009] Preferably, a friction mechanism is provided on the surface of the hook. The friction mechanism includes a mounting plate fixedly installed on the surface of the hook. A jack is formed on the surface of the mounting plate. A magnet is fixedly installed on the inner wall of the jack. A plug post is arranged on the inner wall of the jack. A rubber sleeve is fixedly installed at the top end of the plug post. Here, the unhooking can be avoided.

[0010] Preferably, the plug post is made of ferritic stainless steel.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0012] 1. Through the design of the tension spring and the back block in the present utility model, when the steel wire rope pulls up the hook, the tension spring can pull the back block, thereby driving the sliding plate and the mounting frame to move, so that the mounting frame drives the pressing wheel to press against the steel wire rope on the pulley. This process can effectively reduce the shaking of the steel wire rope when lifting heavy objects, improve the stability of lifting. At the same time, the pressing wheel can also limit the position of the steel wire rope to prevent the steel wire rope from slipping out of the pulley, ensuring the correct position of the steel wire rope on the pulley and increasing the safety of operation. When the steel wire rope vibrates, the steel wire rope drives the pressing wheel to move, and then the pressing wheel drives the sliding plate and the back block to move. The back block can pull the tension spring, and the buffer is achieved through the tension of the tension spring. At the same time, the friction between the back block and the friction pad can absorb the energy generated by the vibration, achieving the effect of energy absorption. In this way, the influence of vibration on the steel wire rope and the pulley can be effectively reduced, improving the durability and stability, and the practicability is relatively high.

[0013] 2. In the present utility model, the rubber sleeve can provide additional friction. When the hook hangs a heavy object, the heavy object can be effectively prevented from slipping off the hook. Especially when the heavy object slides onto the rubber sleeve, due to the increase in frictional resistance, the probability of the heavy object unhooking is further reduced, significantly improving the safety during the lifting process. When the rubber sleeve is damaged, it only needs to simply pull the rubber sleeve outwards until the plug post leaves the jack, without complex disassembly and assembly steps, greatly simplifying the maintenance process. Similarly, when installing a new rubber sleeve, only need to align the plug post under the rubber sleeve with the jack and insert it until the plug post abuts against the magnet. This design makes the replacement process of the rubber sleeve more convenient and fast, and the practicability is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the steel wire rope anti - falling device proposed by the present utility model;

[0015] Figure 2 is a top view of the steel wire rope anti - falling device proposed by the present utility model;

[0016] Figure 3 is the steel wire rope anti - falling device proposed by the present utility model Figure 2Enlarged view of part A

[0017] Figure 4 Side view of the wire rope anti - detachment device proposed by the present utility model

[0018] Figure 5 The wire rope anti - detachment device proposed by the present utility model Figure 4 Enlarged view of part B

[0019] Figure 6 Schematic diagram of the rubber sleeve in the wire rope anti - detachment device proposed by the present utility model

[0020] Legend description:

[0021] 1. Outer shell; 2. Pulley; 3. Hook; 4. Connecting plate; 5. Vertical block; 6. Slide plate; 7. Back block; 8. Mounting frame; 9. Squeezing wheel; 10. Tension spring; 11. Side block; 12. Friction pad; 13. Mounting plate; 14. Jack; 15. Magnet; 16. Plug post; 17. Rubber sleeve Specific implementation manners

[0022] In order to more clearly understand the above - mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification

[0024] Embodiment 1

[0025] Please refer to Figures 1-6, the utility model provides a technical solution: a wire rope anti - falling device, including a housing 1. The housing 1 is of a triangular structure, and a chamfer is provided on the top surface of the housing 1. The chamfer design can reduce the acute angles at the edge of the top surface of the housing 1, avoiding scratching the operator during use. The material of the housing 1 can be selected from aluminum alloy or stainless steel. The aluminum alloy material is light in weight, facilitating carrying and installation, while the stainless steel material has high corrosion resistance and strength, being suitable for long - term use in harsh environments. A pulley 2 is rotatably connected to the inner wall of the housing 1. The pulley 2 is connected to the inner wall of the housing 1 through a ball bearing. Such a connection method can reduce friction, ensuring the smoothness and durability of the rotation of the pulley 2. The use of a ball bearing can make the pulley 2 rotate more smoothly, reduce energy loss, and improve work efficiency. A hook 3 is fixedly installed on the bottom surface of the housing 1. The hook 3 can be fixed to the bottom surface of the housing 1 by bolts or welding. Bolt connection is convenient for disassembly and maintenance, while welding connection provides higher strength and stability. The material of the hook 3 can be selected from alloy steel or high - strength plastic. The alloy steel material has high load - bearing capacity and durability, while the high - strength plastic material is light in weight and easy to operate.

[0026] Please refer to Figures 1-6 , a connecting plate 4 is fixedly installed inside the housing 1. The connecting plate 4 is fixed to the inside of the housing 1 by bolts or welding, ensuring the stability and load - bearing capacity of the connecting plate 4. A vertical block 5 is fixedly installed on the top surface of the connecting plate 4. A sliding plate 6 is disposed through the side surface of the vertical block 5, and the sliding plate 6 is slidably connected to the vertical block 5. One end of the sliding plate 6 is fixedly installed with a back block 7. The material of the back block 7 can be selected from high - strength steel or aluminum alloy to ensure its durability and impact resistance during use. The other end of the sliding plate 6 is fixedly installed with a mounting frame 8. The mounting frame 8 is of a "U" - shaped structure. An extrusion wheel 9 is rotatably connected to the inside of the mounting frame 8. The extrusion wheel 9 is connected to the mounting frame 8 through a pin shaft. The material of the pin shaft can be selected from stainless steel or high - strength alloy steel to ensure the stability and durability of the extrusion wheel 9 under high load. A tension spring 10 is sleeved on the surface of the sliding plate 6. One end of the tension spring 10 is fixedly connected to the back block 7, and the other end is fixedly connected to the vertical block 5. The tension spring 10 is made of spring steel material, having good elasticity and durability. The tension spring 10 made of spring steel material can maintain a stable elastic force for a long time, ensuring reliability during use. A side block 11 is fixedly installed on the surface of the back block 7. The side block 11 is fixed to the surface of the back block 7 by screws or welding, ensuring the firm connection of the side block 11. A friction pad 12 is fixedly installed on the side surface of the side block 11. The material of the friction pad 12 is natural rubber, and the friction pad 12 is attached to the back block 7. The friction pad 12 made of natural rubber can provide good friction force and effectively absorb the energy generated by vibration, thereby damping.

[0027] Embodiment Two

[0028] Please refer to Figures 4-6, a friction mechanism is provided on the surface of the lifting hook 3. The friction mechanism includes a mounting plate 13 which is fixedly installed on the surface of the lifting hook 3. The material of the mounting plate 13 can be selected from stainless steel or aluminum alloy to ensure its corrosion resistance and strength during long-term use. A jack 14 is formed on the surface of the mounting plate 13, and a magnet 15 is fixedly installed on the inner wall of the jack 14. The material of the magnet 15 can be selected as a high-strength neodymium iron boron magnet, which has a strong adsorption capacity to ensure that the plug post 16 can be firmly fixed in the jack 14. A plug post 16 is arranged on the inner wall of the jack 14, and the material of the plug post 16 is ferritic stainless steel. The ferritic stainless steel material has good magnetic response performance to ensure that the plug post 16 can be firmly adsorbed by the magnet 15. A rubber sleeve 17 is fixedly installed at the top of the plug post 16. The rubber sleeve 17 can be fixed by plugging or buckling. The plugging method is convenient for quick replacement, while the buckling method provides a more secure connection. The material of the rubber sleeve 17 can be selected from natural rubber or synthetic rubber. The natural rubber material has good elasticity and wear resistance, while the synthetic rubber material has higher chemical corrosion resistance and is suitable for a wider range of use environments.

[0029] Working principle: The hoisting wire rope is connected to the pulley 2. When the wire rope pulls up the hook 3 to hoist a heavy object, due to the pulling force of the tension spring 10, the tension spring 10 can pull the back block 7 to move. Subsequently, the back block 7 can drive the back block 7 to move. Then, the back block 7 can drive the slide plate 6 and the mounting bracket 8 to move. At this time, the mounting bracket 8 can drive the pressing wheel 9 to press against the wire rope on the pulley 2. This can reduce the probability of the wire rope shaking. At the same time, it limits the position of the wire rope to prevent it from slipping out of the pulley 2. And when the wire rope vibrates, the wire rope drives the pressing wheel 9 to move. Subsequently, the pressing wheel 9 can drive the slide plate 6 and the back block 7 to move. At this time, the back block 7 can pull the tension spring 10. At this time, buffer is carried out through the pulling force of the tension spring 10. At the same time, when the back block 7 rubs against the friction pad 12, the energy generated by vibration can be absorbed through the frictional force, thus achieving complete shock absorption. Through the design of the tension spring 10 and the back block 7 in the present utility model, when the wire rope pulls up the hook 3, the tension spring 10 can pull the back block 7, and then drive the slide plate 6 and the mounting bracket 8 to move, so that the mounting bracket 8 drives the pressing wheel 9 to press against the wire rope on the pulley 2. This process can effectively reduce the shaking of the wire rope when hoisting heavy objects, improve the stability of hoisting. At the same time, the pressing wheel 9 can also limit the position of the wire rope to prevent the wire rope from slipping out of the pulley 2, ensuring the correct position of the wire rope on the pulley 2 and increasing the safety of operation. And when the wire rope vibrates, the wire rope drives the pressing wheel 9 to move, and then the pressing wheel 9 drives the slide plate 6 and the back block 7 to move. The back block 7 can pull the tension spring 10. Buffer is achieved through the pulling force of the tension spring 10. At the same time, the friction between the back block 7 and the friction pad 12 can absorb the energy generated by vibration, achieving the effect of energy absorption. This can effectively reduce the impact of vibration on the wire rope and the pulley 2, improving durability and stability. And the rubber sleeve 17 provided can provide frictional force. In this way, when the hook 3 hangs a heavy object, it can prevent the heavy object from unhooking. When the heavy object slides onto the rubber sleeve 17, due to the increased resistance, the probability of the heavy object unhooking can be reduced, improving safety. And when the rubber sleeve 17 is damaged and needs to be replaced, only need to pull the rubber sleeve 17 outwards until the rubber sleeve 17 drives the plug post 16 to leave the jack 14. When installing the rubber sleeve 17, only need to align the plug post 16 under the rubber sleeve 17 with the jack 14 and insert it until the plug post 16 abuts against the magnet 15. At this time, the magnet 15 attracts the plug post 16 made of ferritic stainless steel, and at this time, the rubber sleeve 17 can be fixed. In the present utility model, the rubber sleeve 17 can provide additional frictional force. When the hook 3 hangs a heavy object, it can effectively prevent the heavy object from slipping off the hook 3. Especially when the heavy object slides onto the rubber sleeve 17, due to the increase in frictional resistance, the probability of the heavy object unhooking is further reduced, significantly improving the safety during the hoisting process. And when the rubber sleeve 17 is damaged, only need to simply pull the rubber sleeve 17 outwards until the plug post 16 leaves the jack 14, without complex disassembly and assembly steps, greatly simplifying the maintenance process.Similarly, when installing the new rubber sleeve 17, just align the insertion post 16 under the rubber sleeve 17 with the jack 14 and insert it until the insertion post 16 abuts against the magnet 15. This design makes the replacement process of the rubber sleeve 17 more convenient and rapid.

[0030] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as they do not depart from the technical solution content of the present invention, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. Wire rope anti-drop-off device, including a housing (1), characterized in that: A pulley (2) is rotatably connected to the inner wall of the outer shell (1). A hook (3) is fixedly installed on the bottom surface of the outer shell (1). A connecting plate (4) is fixedly installed inside the outer shell (1). A vertical block (5) is fixedly installed on the top surface of the connecting plate (4). A sliding plate (6) penetrates through the side surface of the vertical block (5), and the sliding plate (6) is slidably connected to the vertical block (5). A back block (7) is fixedly installed at one end of the sliding plate (6). An installation frame (8) is fixedly installed at the other end of the sliding plate (6). An extrusion wheel (9) is rotatably connected inside the installation frame (8). A tension spring (10) is sleeved on the surface of the sliding plate (6). A side block (11) is fixedly installed on the surface of the back block (7). A friction pad (12) is fixedly installed on the side surface of the side block (11).

2. The wire rope anti-drop-off device according to claim 1, characterized in that: One end of the tension spring (10) is fixedly connected to the back block (7), and the other end of the tension spring (10) is fixedly connected to the vertical block (5).

3. The wire rope anti-drop-off device according to claim 1, characterized in that: The friction pad (12) is made of natural rubber, and the friction pad (12) is attached to the back block (7).

4. The wire rope anti-drop device according to claim 1, characterized in that: The installation frame (8) is of a "U" - shaped structure, and the outer shell (1) is of a triangular structure.

5. The wire rope anti-drop-off device according to claim 1, characterized in that: A chamfer is provided on the top surface of the outer shell (1).

6. The wire rope anti-drop device according to claim 1, characterized in that: A friction mechanism is provided on the surface of the hook (3). The friction mechanism includes a mounting plate (13) fixedly installed on the surface of the hook (3). A jack (14) is provided on the surface of the mounting plate (13). A magnet (15) is fixedly installed on the inner wall of the jack (14). A plug post (16) is arranged on the inner wall of the jack (14). A rubber sleeve (17) is fixedly installed at the top end of the plug post (16).

7. The wire rope anti-drop-off device according to claim 6, characterized in that: The plug post (16) is made of ferritic stainless steel.

Images