Horizontal disc type anti-falling mechanism

Abstract

A horizontal disc-shaped anti-falling mechanism comprises a support frame, a brake assembly and a damping assembly. An axis vertically arranged winding disc is rotatably installed inside the support frame. The top surface of the winding disc is provided with a ring table. The top surface of the ring table is provided with a plurality of uniformly spaced clamping grooves in the circumferential direction. The brake assembly comprises a clamping plate arranged between the top surface of the winding disc and the support frame and moving in the vertical direction. The clamping plate is coaxially arranged with the winding disc, and the bottom surface is provided with a plurality of uniformly spaced clamping blocks in the circumferential direction. In use, the clamping blocks are matched in the clamping grooves. The damping assembly comprises a support plate arranged at one end of the support frame. The support plate is provided with a connecting rod moving in the thickness direction and connected to the support frame at one end. The other end of the connecting rod is provided with a top cylinder moving synchronously. A plurality of damping pads are arranged between the top cylinder and the support plate along the axis. The mechanism has a short response time, can quickly realize braking, and can slow down the impact, and has strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of vehicle fall prevention technology, and in particular to a horizontal disc-shaped fall prevention mechanism. Background Technology

[0002] Overhead cranes are lifting equipment widely used in industrial production, logistics warehousing, and construction. Their core function is to achieve vertical lifting and horizontal movement of heavy objects through hooks or other lifting devices. Based on the core requirement of safety protection, fall arresters are installed in overhead cranes to protect equipment and goods. Fall arresters are crucial devices for ensuring the safety of lifting operations; they can quickly brake and lock falling objects within a limited distance, protecting personnel and equipment.

[0003] With the development of industrial automation and intelligence, higher requirements are being placed on the safety, reliability, environmental adaptability, and response efficiency of train fall arresters. However, traditional mechanical fall arresters have significant technical bottlenecks: they rely on mechanical inertia triggering (such as centrifugal and speed limiter structures), generally have long response times, and large braking distances; the impact force generated by locking brakes can reach 3-5 times the rated load, causing deformation of the main beam of the train, and long-term use can easily lead to metal fatigue fracture. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned prior art, this application provides a horizontal disc-shaped fall arrest mechanism with short response time, which can quickly achieve braking and reduce impact, and has strong practicality.

[0005] To achieve the above objectives, the present invention employs the following technology:

[0006] A horizontal disc-shaped fall arrestor includes: a support frame, a braking assembly, and a shock absorption assembly.

[0007] The support frame has a vertically oriented winding reel rotatably mounted inside. The top surface of the winding reel has a ring platform, and the top surface of the ring platform has multiple evenly spaced slots along the circumference. The braking assembly includes a locking plate located between the top surface of the winding reel and the support frame, which moves vertically. The locking plate is coaxial with the winding reel, and its bottom surface has multiple evenly spaced locking blocks along the circumference. In use, the locking blocks engage with the slots. The shock absorption assembly includes a support plate located at one end of the support frame. A connecting rod that moves along the thickness direction and is connected to the support frame at one end passes through the support plate. The other end of the connecting rod has a top cylinder that moves synchronously. Multiple shock-absorbing pads are arranged along the axis between the top cylinder and the support plate.

[0008] Furthermore, the winding reel is rotatably mounted on the shaft, both ends of the shaft are mounted on connecting seats, and the connecting seats are mounted on the support frame.

[0009] Furthermore, the outer wall of the rotating shaft is provided with a rectangular portion, and the center of the clamping plate is slidably fitted onto the rectangular portion.

[0010] Furthermore, the top of the support frame is provided with multiple guide posts arranged at intervals along the circumference of the card plate, and the top surface of the card plate is provided with multiple grooves along the circumference. In application, the lower end of the guide post is located in the groove, and a spring is sleeved on the guide post. The two ends of the spring are respectively connected to the bottom of the groove and the support frame, and are always in a compressed state.

[0011] Furthermore, multiple electromagnets are installed circumferentially on the side of the support frame facing the card plate. During application, the electromagnets contact the top surface of the card plate.

[0012] Furthermore, the top surface of the card plate is provided with multiple reset rods, the upper ends of which pass through the support frame. In use, the reset rods are connected to the output end of the power equipment, which is installed on the support frame.

[0013] Furthermore, a guide tube with a horizontally arranged axis is inserted through the center of the support plate, a connecting rod is inserted through the guide tube, shock-absorbing pads are sequentially sleeved on the guide tube, and the end of the top cylinder near the support plate is sleeved on the guide tube.

[0014] Furthermore, a limiting frame is provided on the side of the support plate, with an opening at the end of the limiting frame away from the support plate. The shock-absorbing pads are all located in the limiting frame, and a pressure block is slidably fitted at the opening of the limiting frame. The pressure block is located between the top cylinder and the shock-absorbing pad, and the top cylinder abuts against the pressure block.

[0015] The advantages of this utility model are as follows: when the equipment is powered off and emergency braking of the trolley's winding reel is required, the clamping plate moves rapidly downward under the action of the spring and gravity, so that the clamping block engages in the clamping slot, thereby achieving braking of the winding reel. The response time is short and the braking distance can be reduced. Furthermore, the shock-absorbing components are used to buffer the impact generated during the braking process, reducing the damage to the trolley caused by excessive impact load. Attached Figure Description

[0016] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 2 This is a cross-sectional structural diagram of the braking component according to an embodiment of this application.

[0019] Figure 3 for Figure 2 Enlarged diagram of point A.

[0020] Figure 4 This is a cross-sectional structural diagram of the shock absorption component according to an embodiment of this application. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figures 1-4 As shown, this example provides a horizontal disc-shaped fall arrest mechanism, including: a support frame 100, a braking assembly 200, and a shock absorption assembly 300.

[0023] A vertically oriented cable reel 101 is rotatably mounted inside the support frame 100. The top surface of the cable reel 101 has a ring platform 102, and the top surface of the ring platform 102 has multiple evenly spaced slots 103 arranged circumferentially. The braking assembly 200 includes a locking plate 201 disposed between the top surface of the cable reel 101 and the support frame 100, and movable vertically. The locking plate 201 is coaxially arranged with the cable reel 101, and its bottom surface has multiple evenly spaced locking blocks 202 arranged circumferentially. During emergency braking, the locking plate 201 moves towards the cable reel 101, and the locking blocks 202 engage with the slots 103, thereby stopping the cable reel 101 from rotating. The shock absorption assembly 300 includes a support plate 301 located at one end of the support frame 100. A connecting rod 302, which moves along its thickness direction and is connected to the support frame 100 at one end, passes through the support plate 301. A top cylinder 303, which moves synchronously, is located at the other end of the connecting rod 302. Multiple shock-absorbing pads 304 are provided along the axis between the top cylinder 303 and the support plate 301. When braking, the support frame 100 as a whole is subjected to the impact force transmitted by the steel rope on the winding reel 101, which forces the support frame 100 to move away from the support plate 301. At this time, under the pull of the connecting rod 302, the impact force is transmitted to the shock-absorbing pads 304, thereby reducing the impact.

[0024] Specifically, the reel 101 is rotatably mounted on the shaft 104, both ends of the shaft 104 are mounted on the connecting seat 105, and the connecting seat 105 is mounted on the support frame 100 to provide support for the reel 101. The outer wall of the shaft 104 is provided with a rectangular portion 106, and the center of the clamping plate 201 is slidably engaged with the rectangular portion 106, thereby providing guidance when the clamping plate 201 moves toward the reel 101, ensuring that the braking operation of the reel 101 is completed smoothly.

[0025] Specifically, multiple electromagnets 206 are installed circumferentially on the side of the support frame 100 facing the card plate 201. When the card plate 201 is separated from the winding reel 101, the electromagnets 206 are energized. Under the attraction of magnetic force, the electromagnets 206 contact the top surface of the card plate 201, thereby ensuring that the normal rotation of the winding reel 101 is not affected.

[0026] Specifically, the top of the support frame 100 is provided with a plurality of spaced guide posts 203 along the circumference of the card plate 201, and the top surface of the card plate 201 is provided with a plurality of grooves 204 along the circumference. When the card plate 201 is separated from the winding reel 101, the lower end of the guide post 203 is located in the groove 204, and a spring 205 is sleeved on the guide post 203. The two ends of the spring 205 are respectively connected to the bottom of the groove 204 and the support frame 100, and are always in a compressed state. Under the action of the spring 205, the card plate 201 always tends to move toward the winding reel 101. When braking, the electromagnet 206 is de-energized and no longer has magnetism. The card plate 201 will move rapidly toward the winding reel 101 under its own weight and the elastic force of the spring 205, thereby achieving braking.

[0027] Specifically, the top surface of the card plate 201 is provided with multiple reset rods 207. The upper end of the reset rod 207 passes through the support frame 100. After braking is completed and the card plate 201 needs to be reset, the reset rod 207 is connected to the output end of the power device. The power device is installed on the support frame 100. The power device can be a motor or an electric telescopic rod, etc. The power device drives the reset rod 207 to move upward until the card plate 201 contacts the electromagnet 206. At this time, the spring 205 is also further compressed, and the electromagnet 206 is also energized. Under the action of the magnetic force of the electromagnet 206, the card plate 201 will be fixed in the upper area of ​​the support frame 100. Then the output end of the power device can be separated from the reset rod 207.

[0028] Specifically, a guide tube 305 with a horizontally arranged axis is inserted through the center of the support plate 301, the connecting rod 302 is inserted through the guide tube 305, the shock-absorbing pads 304 are sequentially sleeved on the guide tube 305, and the top cylinder 303 is sleeved on the guide tube 305 at one end near the support plate 301. The guide tube 305 provides guidance for the movement of the connecting rod 302. In the event of emergency braking, the connecting rod 302 moves toward the support frame 100. At this time, the top cylinder 303 moves synchronously with the connecting rod 302 and applies pressure to the shock-absorbing pads 304, compressing the shock-absorbing pads 304 and thus reducing the impact.

[0029] More specifically, the 304 shock absorber can be made of materials with buffering and energy absorption properties, such as rubber and nylon. Rubber can absorb energy during braking and reduce impact force. Nylon sheets have wear-resistant and self-lubricating properties, which can reduce friction and wear between components on the one hand, and assist in buffering on the other hand to ensure a smooth braking process.

[0030] Specifically, a limiting frame 306 is provided on the side of the support plate 301. The limiting frame 306 is open at one end away from the support plate 301. The damping pads 304 are all located in the limiting frame 306. A pressure block 307 is slidably fitted at the opening of the limiting frame 306. The pressure block 307 is located between the top cylinder 303 and the damping pads 304, and the top cylinder 303 abuts against the pressure block 307. When the connecting rod 302 moves, the impact force is transmitted to the pressure block 307 through the top cylinder 303. The pressure block 307 disperses the impact force and transmits it to the damping pads 304, thereby providing a damping effect.

[0031] Since the above are merely preferred embodiments of this utility model and are not intended to limit this utility model, it is obvious that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A horizontal disc-shaped fall arrest mechanism, characterized in that, include: The support frame (100) has a winding reel (101) with its axis arranged vertically inside. The top surface of the winding reel (101) is provided with a ring platform (102). The top surface of the ring platform (102) is provided with a plurality of evenly spaced slots (103) along the circumferential direction. The braking assembly (200) includes a clamping plate (201) disposed between the top surface of the winding reel (101) and the support frame (100) and movable in the vertical direction. The clamping plate (201) is coaxially arranged with the winding reel (101), and the bottom surface is provided with a plurality of evenly spaced clamping blocks (202). In application, the clamping blocks (202) are engaged in the clamping groove (103). The shock absorption assembly (300) includes a support plate (301) disposed at one end of the support frame (100), a connecting rod (302) that moves along its thickness direction and is connected at one end to the support frame (100) is disposed in the support plate (301), a top cylinder (303) that moves synchronously is disposed at the other end of the connecting rod (302), and a plurality of shock absorption pads (304) are disposed between the top cylinder (303) and the support plate (301) along its axis.

2. The horizontal disc-shaped fall arrestor mechanism according to claim 1, characterized in that, The winding reel (101) is rotatably mounted on the rotating shaft (104), both ends of the rotating shaft (104) are mounted on the connecting seat (105), and the connecting seat (105) is mounted on the support frame (100).

3. The horizontal disc-shaped fall arrestor mechanism according to claim 2, characterized in that, The outer wall of the rotating shaft (104) is provided with a rectangular part (106), and the center of the card plate (201) is slidably fitted on the rectangular part (106).

4. The horizontal disc-shaped fall arrestor mechanism according to claim 1, characterized in that, The top of the support frame (100) is provided with a plurality of spaced guide posts (203) along the circumferential direction of the card plate (201). The top surface of the card plate (201) is provided with a plurality of grooves (204) along the circumferential direction. In use, the lower end of the guide post (203) is located in the groove (204). A spring (205) is sleeved on the guide post (203). The two ends of the spring (205) are respectively connected to the bottom of the groove (204) and the support frame (100), and are always in a compressed state.

5. The horizontal disc-shaped fall arrestor mechanism according to claim 1, characterized in that, The support frame (100) has multiple electromagnets (206) installed circumferentially on the side of the top facing the card plate (201). When in use, the electromagnets (206) are in contact with the top surface of the card plate (201).

6. The horizontal disc-shaped fall arrestor mechanism according to claim 1, characterized in that, The top surface of the card plate (201) is provided with multiple reset rods (207). The upper end of the reset rod (207) passes through the support frame (100). In use, the reset rod (207) is connected to the output end of the power equipment, and the power equipment is installed on the support frame (100).

7. The horizontal disc-shaped fall arrestor mechanism according to claim 1, characterized in that, The support plate (301) has a guide tube (305) with a horizontal axis through its center. The connecting rod (302) passes through the guide tube (305). The shock-absorbing pad (304) is sequentially sleeved on the guide tube (305). The top cylinder (303) is sleeved on the guide tube (305) at one end near the support plate (301).

8. The horizontal disc-shaped fall arrestor mechanism according to claim 1, characterized in that, The support plate (301) is provided with a limiting frame (306) on its side. The limiting frame (306) is open at one end away from the support plate (301). The shock-absorbing pads (304) are all located in the limiting frame (306). A pressure block (307) is slidably fitted at the opening of the limiting frame (306). The pressure block (307) is located between the top cylinder (303) and the shock-absorbing pads (304), and the top cylinder (303) abuts against the pressure block (307).

Images