Power transmission line anti-falling device
By using a combination structure of a rotating wheel and a self-locking disc in the power transmission line fall arrestor, and utilizing high-speed rotation to drive slow locking, the problem of reduced durability of the self-locking mechanism due to impact force is solved, thus extending the lifespan and improving the safety of the self-locking mechanism.
Patent Information
- Application Number
- CN202520425533.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In existing fall arrestors, the self-locking mechanism suffers a decrease in durability due to the impact of falling objects during high-altitude operations, thus affecting its service life.
Design a power transmission line anti-fall device. Through a combination structure of a rotating wheel, a self-locking disc, a planetary gear, and a self-locking hook, the high-speed rotation of the rotating wheel drives the self-locking disc to rotate slowly, reducing the impact between the self-locking hook and the upright plate, and achieving slow locking.
It effectively reduces the impact force on the self-locking mechanism, extends its service life, and improves safety and reliability.
Smart Images
Figure CN223930560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical maintenance technology, and in particular to a power transmission line anti-fall device. Background Technology
[0002] A fall arrestor is a safety device used to prevent personnel from falling while working at heights. It is widely used in industries requiring high-altitude operations, such as construction, power, telecommunications, and wind power generation. The primary function of a fall arrestor is to protect the lives of workers at heights, preventing serious injury or death from accidental falls. When a worker slips or loses balance, the fall arrestor quickly locks in place, preventing further descent and thus avoiding a fall accident. Power workers often need to climb high-voltage towers when maintaining power lines; fall arrestors ensure their safety at heights by preventing falls, reducing the impact of falls, and providing a safe working area, effectively protecting the lives of workers and significantly improving the safety of high-altitude operations, reducing the probability of accidents. Whether in construction, power facility maintenance, or wind power generation, fall arrestors play a crucial role, providing a solid safety guarantee for various high-altitude operations.
[0003] The self-locking mechanism inside the fall arrestor pulls out the wire rope when a worker falls, triggering the internal locking mechanism to quickly lock the wire rope. However, the force generated when a person falls will cause a great impact on the self-locking mechanism, leading to a rapid decrease in the durability of the self-locking mechanism.
[0004] Therefore, a power transmission line fall prevention device is provided to reduce the impact of gravity on the self-locking mechanism and extend its service life. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a power transmission line anti-fall device to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a power transmission line anti-fall device, which includes a box body, a rotating wheel is arranged at the center of the box body, a synchronous shaft is arranged at the center of the rotating wheel, a plurality of reinforcing rods are evenly arranged between the synchronous shaft and the inner wall of the rotating wheel, and self-locking discs are coaxially arranged at both ends of the synchronous shaft on the outer side of the rotating wheel. A connecting post is coaxially arranged at one end of the self-locking disc, and the other end of the connecting post is located on the inner surface of the box body. The connecting post is rotatably connected to the inner surface of the box body.
[0007] As a preferred embodiment of the power transmission line anti-fall device of this utility model, the synchronous shaft is provided with output wheels at both ends, the output wheels are located inside the self-locking disk, the inner side wall of the self-locking disk is provided with a sun gear ring, multiple planetary gears mesh between the sun gear ring and the output wheels, the planetary gears are provided with a connecting frame on the side opposite to the output wheels, and an independent shaft connects the planetary gears and the connecting frame.
[0008] As a preferred embodiment of the power transmission line anti-fall device of this utility model, a pull rope is provided on the outer side of the wheel, a pressure plate is provided at one end of the pull rope, a connecting rope is provided below the pressure plate, and a mounting seat is provided at the other end of both ends of the connecting rope, with the mounting seat penetrating the bottom surface of the box.
[0009] As a preferred embodiment of the power transmission line anti-fall device of this utility model, the self-locking disc has a plurality of self-locking hooks evenly arranged on its outer side wall, a pair of deflection seats are arranged on the inner bottom surface of the box, a deflection rod is arranged between the deflection seats, the deflection seats are located on one side of the opening of the self-locking hook, a deflection plate is arranged on one side of the deflection rod, the deflection plate is located between the pressure plate and the inner bottom surface of the box, a vertical plate is arranged on the other side of the deflection rod, a relay column is arranged at the center between the vertical plates, a self-locking column is arranged horizontally above the vertical plate and the relay column, and a second return spring is arranged on the bottom surface of the deflection plate below the pressure plate, the other end of the second return spring is fixed to the inner bottom surface of the box.
[0010] As a preferred embodiment of the power transmission line anti-fall device of this utility model, the pressure plate is symmetrically provided with extension plates on both sides, and a first reset spring is provided below the extension plates. One end of the first reset spring is connected to the inner bottom surface of the box, and the first reset spring is located on the outside of the mounting base.
[0011] As a preferred embodiment of the power transmission line anti-fall device of this utility model, a connecting seat is provided at the center of the outer top surface of the box.
[0012] The beneficial effects of this utility model are:
[0013] 1. This utility model provides a power transmission line anti-fall device, which drives the rotating wheel to rotate at high speed by setting an installation base. The high-speed rotation of the rotating wheel drives the self-locking disc to rotate slowly, and then drives the self-locking hook on the self-locking disc to rotate slowly. The cooperation between the self-locking hook and the upright plate realizes the locking of the self-locking disc and reduces the impact between the self-locking hook and the upright plate.
[0014] 2. This utility model provides a power transmission line anti-fall device, which is provided by setting a deflection seat, pulling the pressure plate on the mounting seat, and the pressure plate drives the synchronous upright plate to deflect, and the deflected upright plate cooperates with the self-locking hook.
[0015] 3. This utility model provides a power transmission line anti-fall device, which, by setting multiple self-locking hooks, can still ensure that one self-locking hook engages with the upright plate when the self-locking disc rotates slowly. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0017] Figure 1 This is a schematic diagram of the overall structure of a power transmission line anti-fall device according to the present invention;
[0018] Figure 2 This is a schematic diagram of the internal structure of a power transmission line fall prevention device according to the present invention. Figure 1 ;
[0019] Figure 3 This is a schematic diagram of the internal structure of a power transmission line fall prevention device according to the present invention. Figure 2 ;
[0020] Figure 4 This is a partial structural diagram of a power transmission line fall prevention device according to the present invention. Figure 1 ;
[0021] Figure 5 This is a partial structural diagram of a power transmission line fall prevention device according to the present invention. Figure 2 .
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Box body; 11. Connecting seat; 2. Rotary wheel; 21. Pull rope; 22. Pressure plate; 23. Connecting rope; 24. Mounting seat; 25. Extension plate; 26. First return spring; 27. Synchronous shaft; 28. Reinforcing rod; 3. Deflection seat; 31. Deflection rod; 32. Deflection plate; 33. Vertical plate; 34. Relay column; 35. Self-locking column; 36. Second return spring; 4. Self-locking disc; 41. Connecting column; 42. Planetary gear; 43. Connecting frame; 44. Output wheel; 45. Sun gear ring; 46. Independent shaft; 5. Self-locking hook. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] Reference Figure 1-5This utility model provides a power transmission line anti-fall device, which includes a housing 1. A rotating wheel 2 is arranged at the center of the housing 1. A synchronous shaft 27 is arranged at the center of the rotating wheel 2. A plurality of reinforcing rods 28 are evenly arranged between the synchronous shaft 27 and the inner wall of the rotating wheel 2. Self-locking discs 4 are coaxially arranged at both ends of the synchronous shaft 27 on the outer side of the rotating wheel 2. A connecting post 41 is coaxially arranged at one end of the self-locking disc 4. The other end of the connecting post 41 is located on the inner surface of the housing 1. The connecting post 41 is rotatably connected to the inner surface of the housing 1.
[0026] Specifically, a rotating wheel 2 is located at the center of the interior of the box body 1, and a synchronous shaft 27 is located at the center of the interior of the rotating wheel 2. Multiple reinforcing rods 28 are evenly arranged between the synchronous shaft 27 and the inner wall of the rotating wheel 2. The synchronous shaft 27 is fixed to the center of the rotating wheel 2 by the reinforcing rods 28, so that the reinforcing rods 28 rotate synchronously with the rotating wheel 2. Self-locking discs 4 are coaxially arranged at both ends of the synchronous shaft 27 on the outer side of the rotating wheel 2. The rotation of the rotating wheel 2 drives the self-locking discs 4 to rotate. A connecting post 41 is coaxially arranged at one end of the self-locking disc 4, and the other end of the connecting post 41 is located on the inner surface of the box body 1. The connecting post 41 is rotatably connected to the inner surface of the box body 1. The self-locking disc 4 can rotate independently of the box body 1 through the connecting post 41, and the self-locking disc 4 is kept horizontal.
[0027] Output wheels 44 are provided at both ends of the synchronous shaft 27. The output wheels 44 are located inside the self-locking disk 4. A sun gear ring 45 is provided on the inner side wall of the self-locking disk 4. Multiple planetary gears 42 mesh between the sun gear ring 45 and the output wheels 44. A connecting frame 43 is provided on the side of the planetary gears 42 facing away from the output wheels 44. An independent shaft 46 connects the planetary gears 42 and the connecting frame 43.
[0028] Specifically, the output wheel 44 is driven to rotate synchronously by the rotation of the synchronous shaft 27. When the output wheel 44 rotates, it drives multiple planetary gears 42 to rotate. The positions of the multiple planetary gears 42 are fixed by the connecting frame 43, and the planetary gears 42 and the connecting frame 43 rotate independently by the independent shaft 46. The self-locking disk 4 meshes with the planetary gears 42 through the sun gear ring 45. The rotation of the multiple planetary gears 42 drives the meshing self-locking disk 4 to rotate.
[0029] A pull rope 21 is provided on the outer side of the rotating wheel 2. A pressure plate 22 is provided at one end of the pull rope 21. A connecting rope 23 is provided below the pressure plate 22. A mounting seat 24 is provided at the other end of the connecting rope 23. The mounting seat 24 penetrates the bottom surface of the box body 1.
[0030] Specifically, a safety rope is connected to one end of the outer side of the housing 1 via the mounting base 24 and then to the worker's body. In the event of an accidental fall, the mounting base 24 is pulled outward, which in turn pulls the connecting rope 23 and the pressure plate 22. The pressure plate 22 pulls the pull rope 21, which in turn drives the rotating wheel 2 to rotate at high speed. The mounting base 24 and the connecting rope 23 can be of different lengths depending on the application scenario, which makes it easier to pull the rotating wheel 2 to rotate.
[0031] Multiple self-locking hooks 5 are evenly arranged on the outer side wall of the self-locking disc 4. A pair of deflection seats 3 are arranged on the inner bottom surface of the box body 1. A deflection rod 31 is arranged between the deflection seats 3. The deflection seats 3 are located on one side of the opening of the self-locking hooks 5. A deflection plate 32 is arranged on one side of the deflection rod 31. The deflection plate 32 is located between the pressure plate 22 and the inner bottom surface of the box body 1. A vertical plate 33 is arranged on the other side of the deflection rod 31. A relay post 34 is arranged at the center between the vertical plates 33. A self-locking post 35 is arranged horizontally above the vertical plate 33 and the relay post 34. A second return spring 36 is arranged on the bottom surface of the deflection plate 32 below the pressure plate 22. The other end of the second return spring 36 is fixed on the inner bottom surface of the box body 1.
[0032] Specifically, the high-speed rotation of the rotating wheel 2 drives the self-locking disc 4 to rotate. The rotation speed of the self-locking disc 4 is less than that of the rotating wheel 2. When the self-locking disc 4 rotates, it drives the self-locking hook 5 to rotate, thereby slowly changing the position of the self-locking hook 5. At the same time, the pressure plate 22 applies pressure to the deflection plate 32 while pulling downward, thereby driving the deflection rod 31 to deflect. After the deflection rod 31 deflects, it also drives the self-locking column 35 to deflect. After the self-locking column 35 deflects, the opening of the self-locking hook 5 can hook the self-locking column 35, thereby fixing the self-locking disc 4. When the upright plate 33 is not deflected, when the pressure plate 22 no longer applies pressure, the second return spring 36 drives the deflection plate 32 to reset.
[0033] An extension plate 25 is symmetrically arranged on both sides of the pressure plate 22. A first reset spring 26 is arranged below the extension plate 25. One end of the first reset spring 26 is connected to the inner bottom surface of the box 1. The first reset spring 26 is located on the outside of the mounting base 24.
[0034] Specifically, the first reset spring 26 facilitates the reset of the pressure plate 22 after the mounting base 24 no longer applies pressure to it.
[0035] A connecting seat 11 is provided at the center of the outer top surface of the box 1.
[0036] Specifically, the box 1 is connected to the worker's work area via the connector 11.
[0037] During use, the mounting base 24 is connected to a safety rope on one end of the outer side of the housing 1, which is then connected to the worker's body. When the worker falls accidentally, the mounting base 24 is pulled outward, which in turn pulls the connecting rope 23 and the pressure plate 22. The pressure plate 22 pulls the pull rope 21, which in turn drives the rotating wheel 2 to rotate at high speed. The high-speed rotation of the rotating wheel 2 drives the self-locking disc 4 to rotate slowly through the planetary gear 42 and the sun gear ring 45. The rotation of the self-locking disc 4 drives the rotation of the self-locking hook 5. When the pressure plate 22 is pulled, the pressure plate 22 applies pressure to the deflection plate 32, which in turn drives the deflection rod 31 to deflect. The deflection rod 31 drives the self-locking column 35 to deflect synchronously, which cooperates with the self-locking hook 5 to prevent the rotation of the self-locking disc 4 and form a self-lock. The rotation speed of the self-locking hook 5 is relatively small, and the impact of the self-locking hook 5 contacting the self-locking column 35 is small, thereby improving the service life.
[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A power transmission line fall protection device, comprising a housing (1), characterized in that: A rotating wheel (2) is provided at the center of the interior of the box (1). A synchronous shaft (27) is provided at the center of the interior of the rotating wheel (2). Multiple reinforcing rods (28) are evenly arranged between the synchronous shaft (27) and the inner wall of the rotating wheel (2). Self-locking discs (4) are coaxially arranged at both ends of the synchronous shaft (27) on the outer side of the rotating wheel (2). A connecting column (41) is coaxially arranged at one end of the self-locking disc (4). The other end of the connecting column (41) is located on the inner surface of the box (1). The connecting column (41) is rotatably connected to the inner surface of the box (1).
2. The power transmission line fall prevention device according to claim 1, characterized in that: Output wheels (44) are provided at both ends of the synchronous shaft (27). The output wheels (44) are located inside the self-locking disk (4). A sun gear ring (45) is provided on the inner side wall of the self-locking disk (4). Multiple planetary gears (42) mesh between the sun gear ring (45) and the output wheels (44). A connecting frame (43) is provided on the side of the planetary gears (42) facing away from the output wheels (44). An independent shaft (46) is connected between the planetary gears (42) and the connecting frame (43).
3. The power transmission line fall prevention device according to claim 2, characterized in that: A pull rope (21) is provided on the outside of the wheel (2). A pressure plate (22) is provided at one end of the pull rope (21). A connecting rope (23) is provided below the pressure plate (22). A mounting seat (24) is provided at the other end of the connecting rope (23). The mounting seat (24) passes through the bottom surface of the box (1).
4. The power transmission line fall prevention device according to claim 3, characterized in that: The outer wall of the self-locking disc (4) is uniformly provided with a plurality of self-locking hooks (5). The inner bottom surface of the box body (1) is provided with a pair of deflection seats (3). A deflection rod (31) is provided between the deflection seats (3). The deflection seat (3) is located on one side of the opening of the self-locking hook (5). A deflection plate (32) is provided on one side of the deflection rod (31). The deflection plate (32) is located between the pressure plate (22) and the inner bottom surface of the box body (1). A vertical plate (33) is provided on the other side of the deflection rod (31). A relay column (34) is provided at the center between the vertical plates (33). A self-locking column (35) is horizontally provided above the vertical plate (33) and the relay column (34). A second reset spring (36) is provided on the bottom surface of the deflection plate (32) below the pressure plate (22). The other end of the second reset spring (36) is fixed on the inner bottom surface of the box body (1).
5. A power transmission line fall arrestor according to claim 4, characterized in that: The pressure plate (22) is symmetrically provided with extension plates (25) on both sides. A first reset spring (26) is provided below the extension plate (25). One end of the first reset spring (26) is connected to the inner bottom surface of the box (1). The first reset spring (26) is located on the outside of the mounting base (24).
6. A power transmission line fall arrestor according to claim 5, characterized in that: A connecting seat (11) is provided at the center of the outer top surface of the box (1).