A power tower anti-falling auxiliary device and its installation process

Abstract

The application relates to the technical field of falling prevention devices, and discloses a falling prevention auxiliary device for a power iron tower and an installation process thereof. The falling prevention auxiliary device comprises a cylinder body, the cylinder body is provided with a wire passing channel, the wire passing channel is used for allowing a cable to pass, a first connecting rod is swingingly arranged at one end of the cylinder body, an axis of swing of the first connecting rod is arranged at an angle with respect to an axis of the cylinder body, a second connecting rod is hingedly connected to one end of the first connecting rod, a third connecting rod is hingedly connected to one end of the second connecting rod, the other end of the third connecting rod is a sliding end, the sliding end is horizontally slidably arranged on the cylinder body, one side of the sliding end is provided with a clamping part, the clamping part is used for extending into the wire passing channel and abutting against the cable, one side of a hinging point of the third connecting rod is provided with a mounting part, and the mounting part is used for mounting a safety buckle. Through the technical scheme, the problem that the falling prevention device is easily locked in the prior art when a person climbs down, the person needs to repeatedly reset the locking device, the climbing is inconvenient, and the work efficiency is low is solved.

Description

Technical Field

[0001] This invention relates to the field of fall protection devices, specifically to a fall protection auxiliary device for power transmission towers and its installation process. Background Technology

[0002] A fall arrestor for power transmission towers and its installation process are disclosed. The core objective is to ensure the personal safety of power workers during tower maintenance, repair, and construction. In existing technologies, before climbing a tower, workers typically use drones to precisely deploy safety cables to the top of the tower or a predetermined climbing height. Subsequently, a fall arrestor connection device securely links the safety equipment worn by the worker to the cable. However, traditional fall arrestors have revealed several limitations in practical applications. To ensure absolute safety, the device design often focuses on automatic locking during descent to prevent accidental falls. However, in actual operation, especially when workers are descending, this design is prone to triggering mis-locking mechanisms or generating significant frictional resistance, leading to inconvenience and requiring frequent manual resetting of the locking device, significantly reducing work efficiency. Furthermore, similar mis-locking phenomena occur frequently during ascent, not only affecting the work progress but also increasing the psychological burden on workers. Summary of the Invention

[0003] This invention proposes a fall arrest auxiliary device for power transmission towers and its installation process, which solves the problems in related technologies where the fall arrest device is easily locked when people climb down, requiring people to repeatedly reset the locking device, which is inconvenient for climbing and has low work efficiency.

[0004] The technical solution of the present invention is as follows: A fall arrestor for power transmission towers, used to prevent safety buckles from slipping off the cables, includes: A cylindrical body having a cable passage for the cable to pass through; The first connecting rod has one end swingably mounted on the cylinder, and the swing axis is set at an angle to the axis of the cylinder; The second link, one end of which is hinged to the first link; The third link has one end hinged to the second link and the other end being a sliding end. The sliding end is oscillatingly mounted on the cylinder. One side of the sliding end has a locking part for extending into the cable passage and abutting against the cable. One side of the hinge point of the third link has a mounting part for mounting the safety buckle.

[0005] As a further technical solution, it also includes: A rotating component, which is rotatably sleeved on the cable, is located within the cable passage, and is slidably raised and lowered relative to the cylinder. The axis of rotation of the rotating component is parallel to the axis of the cable. A damping element is disposed on the inner wall of the wire passage. After the rotating component slides up and down relative to the cylinder, the rotating component rubs against or cancels contact with the damping element.

[0006] As a further technical solution, it also includes: An upper bearing component and a lower bearing component are provided, both of which are slidably mounted on the inner wall of the wire passage. The upper end of the rotating component is rotatably mounted on the upper bearing component, and the lower end is rotatably mounted on the lower bearing component.

[0007] As a further technical solution, the damping component has an inner conical friction surface, the rotating component has an outer conical friction surface, and after the rotating component moves upward relative to the cylinder, the inner conical friction surface and the outer conical friction surface come into frictional contact.

[0008] As a further technical solution, the rotating component is cylindrical and also includes: A rotating roller is rotatably mounted on the rotating component, with its rotation axis forming an angle with the axis of the rotating component. There are several rotating rollers arranged circumferentially on the rotating component, and all of the rotating rollers are used to roll and abut against the cable.

[0009] As a further technical solution, the roller has a concave arc portion, which is used to abut against the surface of the cable.

[0010] As a further technical solution, the inner wall of the cable passage has a baffle portion, the rotating member is between the damping member and the baffle portion, and the lower bearing member moves up and down and slides to approach or move away from the baffle portion.

[0011] As a further technical solution, the baffle portion has a sliding groove parallel to the radial direction of the cylinder, and further includes: A rotating shaft is rotatably mounted on the sliding end and is eccentrically positioned relative to the locking part. The rotating shaft has sliding parts on both sides, and the sliding parts are slidably mounted in the sliding groove. An elastic element, one end of which is disposed on the inner wall of the groove and the other end of which is disposed on the sliding part, provides the sliding part with a force in a direction away from the cable.

[0012] As a further technical solution, it also includes: The fourth link has one end hinged to the lower bearing and the other end hinged to the second link. After the lower bearing moves away from the stop, the angle between the fourth link and the cable decreases. The first link, the second link, the third link, and the fourth link together form a clamping assembly. There are several clamping assemblies arranged circumferentially on the cylinder.

[0013] An installation process for a fall arrest auxiliary device for power transmission towers, utilizing a fall arrest auxiliary device for power transmission towers, comprising: Step S1: Pre-install the rotating component, upper bearing component, lower bearing component, and rotating roller onto the cable; Step S2: After the cylinder, the first connecting rod, the second connecting rod, and the third connecting rod are pre-installed, they are installed on the outside of the upper bearing component and the lower bearing component.

[0014] The working principle and beneficial effects of this invention are as follows: In this invention, a cable passage is provided inside the cylinder. The cylinder is designed to be detachable and later installed on the cable, or it can be made as a single unit and installed on the cable from the beginning of its use, adapting to different usage scenarios. One end of the first connecting rod is pivotally mounted on the cylinder via a pin, with the pivot axis forming a certain angle with the cylinder axis. This design allows the first connecting rod to swing freely on both sides of the cable while ensuring a stable connection with the cylinder. One end of the second connecting rod is connected to the first connecting rod via a hinge point, allowing for multi-angle adjustment between the two connecting rods, enhancing the adaptability and flexibility of the device. The other end is a sliding end, which can swing on the cylinder. A locking part is provided on one side of the sliding end, used to abut against the cable after swinging when the cable passes through the cable passage, preventing the cylinder from slipping. The other side of the hinge point of the third connecting rod is provided with a mounting part for installing a safety buckle, ensuring a reliable connection between the personnel and the cable. When a person falls downwards, the locking part of the third connecting rod makes tight contact with the cable, and through the locking action of the connecting rod mechanism and the locking part, automatic locking is achieved to prevent accidental slippage. When climbing upwards, the force direction on the cable and the locking mechanism changes, triggering the linkage mechanism to automatically unlock, ensuring smooth upward movement. Simultaneously, it can quickly lock in place in emergencies, providing safety. A sliding end is provided on the third linkage; sliding this end allows the locking mechanism to move closer to or further away from the cable. Moving it away reduces friction with the cable and lowers the possibility of accidental triggering during climbing. Attached Figure Description

[0015] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the clamping assembly and the baffle section in this invention; Figure 4 for Figure 3 A schematic diagram of a partial structure of part A in the middle.

[0017] In the diagram: Cable-001, cylinder-1, cable passage-101, stop-plate-102, slide-groove-103, first connecting rod-2, second connecting rod-3, third connecting rod-4, sliding end-401, clamping part-402, mounting part-403, rotating part-5, outer conical friction surface-501, damping part-6, inner conical friction surface-601, upper bearing part-7, lower bearing part-8, rotating roller-9, concave arc part-901, rotating shaft-10, sliding part-1001, elastic part-11, fourth connecting rod-12, clamping assembly-1200. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Reference Figures 1-4An embodiment of the present invention provides a fall arrest auxiliary device for power transmission towers to prevent safety buckles from slipping off cable 001. The device includes a cylinder 1 with a cable passage 101 for the cable 001 to pass through. One end of a first connecting rod 2 is oscillatingly mounted on the cylinder 1, with its oscillation axis forming an angle with the axis of the cylinder 1. One end of a second connecting rod 3 is hinged to the first connecting rod 2, and one end of a third connecting rod 4 is hinged to the second connecting rod 3. The other end is a sliding end 401, which is oscillatingly mounted on the cylinder 1. One side of the sliding end 401 has a locking part 402 for extending into the cable passage 101 and abutting against the cable 001. One side of the hinge point of the third connecting rod 4 has a mounting part 403 for mounting the safety buckle.

[0023] In this embodiment, a cable passage 101 is provided inside the cylinder 1. The cylinder 1 can be designed to be detachable and later installed on the cable 001, or it can be made as an integral piece and installed on the cable 001 from the beginning of its use, which can adapt to different usage scenarios. One end of the first connecting rod 2 is oscillatingly mounted on the cylinder 1 via a pin, with the oscillation axis forming a certain angle with the axis of the cylinder 1. This design allows the first connecting rod 2 to swing freely on both sides of the cylinder 1, while ensuring a stable connection with the cylinder 1. One end of the second connecting rod 3 is hinged to the first connecting rod 2 through a hinge point, allowing for multi-angle adjustment between the two connecting rods, enhancing the adaptability and flexibility of the device. One end of the third connecting rod is a sliding end 401, which can slide horizontally on the cylinder 1. A locking part 402 is provided on one side of the sliding end 401, which is used to abut against the cable 001 when the cable 001 passes through the cable passage 101 to prevent the cylinder 1 from slipping. On the other side of the hinge point of the third link 4, there is a mounting part 403 for installing a safety buckle to ensure a reliable connection between the person and the cable 001. When the person falls downwards, the cable 001 is stressed, and the locking part 402 of the third link 4 comes into close contact with the cable 001. Through the action of the linkage mechanism, automatic locking is achieved to prevent accidental slippage. When climbing upwards, the direction of force on the locking part 402 changes, and the linkage mechanism responds by automatically unlocking, ensuring that the person can move upwards smoothly. At the same time, it can still lock quickly in an emergency to provide safety. A sliding end 401 is provided on the third link 4. After the sliding end 401 slides, the locking part 402 can move closer to or away from the cable 001. Moving away from the cable 001 reduces friction between the two parts and reduces the possibility of accidental triggering during climbing.

[0024] Furthermore, it also includes a rotating component 5, which is rotatably sleeved on the cable 001, located inside the cable passage 101, and is slidably raised and lowered relative to the cylinder 1. The rotation axis of the rotating component 5 is parallel to the axis of the cable 001. The damping component 6 is disposed on the inner wall of the cable passage 101. After the rotating component 5 is raised and lowered relative to the cylinder 1, the rotating component 5 and the damping component 6 rub against each other or cancel the contact.

[0025] In this embodiment, the rotating component 5 is a shell-like structure, sleeved on the cable 001. The relative sliding between the rotating component 5 and the cylinder 1 is mainly achieved through the lifting and lowering movement of personnel and the gravity of the cylinder 1 itself, which moves the cylinder 1 relative to the rotating component 5. Simultaneously, the rotation axis of the rotating component 5 remains parallel to the axis of the cable 001, ensuring smooth rotation of the rotating component 5 during climbing, reducing friction, and improving climbing efficiency. The damping component 6 is installed on the inner wall of the cable passage 101 and is made of a highly elastic, high-friction coefficient material, such as special rubber or composite materials. The design of the damping component 6 allows it to rub against or disengage from the outer wall of the rotating component 5 according to its lifting and lowering movement, achieving dynamic adjustment of friction. Specifically, when construction workers are climbing normally upwards, the rotating component 5 rotates and is subject to a certain resistance from the cable 001. The rotating component 5 slides down relative to the cylinder 1 and moves away from the damping component 6. This avoids the increased climbing resistance from burdening the personnel. In an emergency, such as if the personnel suddenly stop or lose their footing, the rotating component 5 slides upwards relative to the cylinder 1, approaches and abuts against the damping component 6. The friction between the rotating component 5 and the damping component 6 increases rapidly. Since this braking action is friction braking, there is a certain buffer space, which can prevent injury to the construction workers caused by emergency locking. Then, an emergency braking is formed, which effectively prevents personnel from falling and provides timely safety assurance.

[0026] Furthermore, it also includes an upper bearing component 7 and a lower bearing component 8, both of which are slidably mounted on the inner wall of the wire passage 101. The upper end of the rotating component 5 is rotatably mounted on the upper bearing component 7, and the lower end is rotatably mounted on the lower bearing component 8.

[0027] In this embodiment, two bearing components are provided, respectively located at both ends of the rotating component 5. This allows the rotating component 5 to rotate smoothly and ensures stable lifting and sliding within the cable passage 101. This design prevents the rotating component 5 from being unable to accurately receive feedback from the resistance between itself and the cable 001 due to deviation. This further ensures the accuracy of the device's judgment on the climbing, descending, and falling states of personnel, enabling faster feedback and ensuring the safety of construction workers.

[0028] Furthermore, the damping member 6 has an inner conical friction surface 601, and the rotating member 5 has an outer conical friction surface 501. After the rotating member 5 moves upward relative to the cylinder 1, the inner conical friction surface 601 and the outer conical friction surface 501 come into frictional contact.

[0029] In this embodiment, considering that the damping element 6 and the rotating element 5, which are in planar contact, are difficult to form good dynamic friction changes and that the braking effect is limited, this solution provides an inner conical friction surface 601 on the damping element 6 and an outer conical friction surface 501 on the rotating element 5. By using the friction braking between the conical surfaces with the same taper, fast and efficient braking can be achieved. At the same time, as the rotating element 5 and the damping element 6 gradually approach each other, sliding friction will also occur between the inner conical friction surface 601 and the outer conical friction surface 501 in a state of incomplete compression. This friction can play a role in deceleration, maintain stable speed support during the personnel's descent, give the personnel more sense of security, and achieve the effect of effortless descent.

[0030] Furthermore, the rotating component 5 is cylindrical and also includes a rotating roller 9 rotatably mounted on the rotating component 5, with the rotation axis forming an angle with the axis of the rotating component 5. There are several rotating rollers 9 arranged circumferentially on the rotating component 5, and all of the rotating rollers 9 are used to roll and abut against the cable 001.

[0031] In this embodiment, a rotating roller 9 is provided on the rotating component 5, and the rotating roller 9 and the cable 001 roll and abut against each other. Compared with simple sliding rotation, this provides better motion stability and more accurate feedback on the resistance between the rope components encountered by the rotating component 5 during the lifting and lowering movement of construction personnel. Meanwhile, since the cable 001 is usually a multi-strand steel cable twisted into a helical shape, the rotating roller 9 is tilted in this design so that its rotation axis is perpendicular or substantially perpendicular to the twisted cable 001. This ensures that the rotating component 5 rotates stably through the interaction between the rotating roller 9 and the cable during lifting and lowering movement, thereby further improving personnel safety and climbing efficiency.

[0032] Furthermore, the roller 9 has a concave arc portion 901, which is used to abut against the surface of the cable 001.

[0033] In this embodiment, considering that the cable 001 is made of stranded wires with a smaller diameter, and the cross-section of each strand of the cable is close to cylindrical, the contact area between the outer surface of the cylindrical roller 9 and the cable is small, this solution provides a concave arc portion 901 on the roller 9. The design of the concave arc portion 901 can increase the contact area between the stranded wires and the roller 9, preventing slippage or incomplete contact between the roller 9 and the cable during the personnel lifting and moving process, so that the rotation feedback of the rotating frame following the personnel lifting and moving process is more timely and accurate.

[0034] Furthermore, the inner wall of the cable passage 101 has a baffle portion 102, the rotating member 5 is between the damping member 6 and the baffle portion 102, and the lower bearing member 8 moves up and down and slides to approach or move away from the baffle portion 102.

[0035] In this embodiment, a baffle 102 is also provided in the cable passage 101. The damping member 6 and the baffle 102 are located on both sides of the rotating member 5, which can limit the lifting and lowering movement of the rotating member 5. When the personnel accelerate downward, the rotating member 5 is limited by the damping member 6. When the personnel move upward, the rotating member 5 is limited by the baffle 102 to prevent it from sliding out of the cable passage 101. At the same time, it can also limit the upward speed of the construction personnel to prevent the safety hazards caused by the construction personnel climbing too fast from increasing.

[0036] Furthermore, the baffle portion 102 has a groove 103 parallel to the radial direction of the cylinder 1, and also includes a rotating shaft 10 rotatably disposed on the sliding end 401 and eccentrically disposed relative to the locking portion 402. The rotating shaft 10 has sliding portions 1001 on both sides, and the sliding portions 1001 are slidably disposed in the groove 103. One end of the elastic member 11 is disposed on the inner wall of the groove 103, and the other end is disposed on the sliding portion 1001, providing the sliding portion 1001 with a force in a direction away from the cable 001.

[0037] In this embodiment, the end of the third link 4 closest to the cable 001 is rotatable and has a rotating shaft 10. The rotating shaft 10 is eccentrically positioned relative to the locking part 402. When a person falls, pressing down on the mounting part 403 at one end of the third link 4 causes the other end of the third link 4 to rotate. After rotation, the locking part 402 can approach the cable 001 until it abuts against the cable 001, preventing the person from sliding further. However, considering that the mechanism is prone to accidental jamming during normal descent, requiring the person to actively reset it multiple times, this solution provides sliding parts 1001 on both sides of the rotating shaft 10. By controlling the rotating shaft 10 to remain away from the cable 001, the person can move more smoothly and without obstacles without the need for emergency braking. The elastic element 11 provides a certain buffer in the initial stage of braking and ensures a more stable abutment and locking effect between the locking part 402 and the cable 001 in the later stage of braking, preventing injury to the construction personnel from sudden stops and maintaining better stability after braking.

[0038] Furthermore, it also includes a fourth connecting rod 12 with one end hinged to the lower bearing member 8 and the other end hinged to the second connecting rod 3. After the lower bearing member 8 moves away from the stop part 102, the angle between the fourth connecting rod 12 and the cable 001 decreases. The first connecting rod 2, the second connecting rod 3, the third connecting rod 4 and the fourth connecting rod 12 together form a clamping assembly 1200. There are several clamping assemblies 1200, which are arranged circumferentially on the cylinder 1.

[0039] In this embodiment, a fourth link 12 is provided. After the lower bearing 8 slides to the stop 102 and abuts, the fourth link 12 is approximately perpendicular to the cable 001. Since the lower bearing 8 abuts against the stop 102, it indicates that the personnel are moving upwards. During this process, the fourth link 12 can cause the second link 3 to move the third link 4 away from the cable, so that the angle change of the third link 4 will not cause the locking part 402 to lock the cable. When the construction personnel descend, the lower bearing 8 moves away from the stop 102, and the angle between the fourth link 12 and the cable 001 decreases, so that one end of the locking part 402 of the third link 4 is close to the cable 001. When the personnel descend rapidly, the locking part 402 and the cable 001, which are close to each other, can have a faster reaction speed and respond in time to ensure the personal safety of the construction personnel. Meanwhile, several clamping components 1200 are provided, and personnel can install them on the mounting part 403 by setting multiple safety buckles. The design of this device can prevent the increase of resistance or accidental clamping caused by accidental triggering. The disadvantages of multiple clamping components 1200 are well addressed. The simultaneous use of several clamping components 1200 can make emergency braking more stable, reduce the risk of shaking or slippage after braking, and further ensure the safety of the staff.

[0040] This embodiment also includes an installation process for a fall arrest auxiliary device for power transmission towers, utilizing a fall arrest auxiliary device for power transmission towers, comprising: Step S1: Pre-install the rotating part 5, the upper bearing part 7, the lower bearing part 8 and the rotating roller 9 on the cable 001; Step S2: After the cylinder 1, the first connecting rod 2, the second connecting rod 3, and the third connecting rod 4 are pre-installed, they are installed on the outside of the upper bearing component 7 and the lower bearing component 8.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fall arrestor for power transmission towers, used to prevent the safety buckle from slipping off the cable (001), characterized in that, include: The cylindrical body (1) has a wire passage (101) for the cable (001) to pass through. The first connecting rod (2) has one end oscillatingly mounted on the cylinder (1), and the oscillation axis is set at an angle to the axis of the cylinder (1). The second link (3) is hinged at one end to the first link (2). The third link (4) is hinged at one end to the second link (3) and the other end is a sliding end (401). The sliding end (401) is oscillatingly mounted on the cylinder (1). One side of the sliding end (401) has a locking part (402), which is used to extend into the cable passage (101) and abut against the cable (001). One side of the hinge point of the third link (4) has a mounting part (403), which is used to install the safety buckle. A rotating component (5) is rotatably mounted on the cable (001), located within the cable passage (101), and is vertically and slidably arranged relative to the cylinder (1). The rotation axis of the rotating component (5) is parallel to the axis of the cable (001). Damping element (6) is disposed on the inner wall of the wire passage (101). After the rotating element (5) slides up and down relative to the cylinder (1), the rotating element (5) rubs against or cancels contact with the damping element (6).

2. The fall arrest auxiliary device for power transmission towers according to claim 1, characterized in that, Also includes: The upper bearing component (7) and the lower bearing component (8) are both slidably mounted on the inner wall of the wire passage (101). The upper end of the rotating component (5) is rotatably mounted on the upper bearing component (7), and the lower end is rotatably mounted on the lower bearing component (8).

3. The fall arrest auxiliary device for power transmission towers according to claim 1, characterized in that, The damping member (6) has an inner conical friction surface (601), and the rotating member (5) has an outer conical friction surface (501). After the rotating member (5) moves upward relative to the cylinder (1), the inner conical friction surface (601) and the outer conical friction surface (501) come into frictional contact.

4. The fall arrest auxiliary device for power transmission towers according to claim 1, characterized in that, The rotating component (5) is cylindrical and also includes: The rotating roller (9) is rotatably mounted on the rotating member (5), and the axis of rotation is set at an angle to the axis of the rotating member (5). There are several rotating rollers (9) arranged circumferentially on the rotating member (5). All of the rotating rollers (9) are used to roll and abut against the cable (001).

5. The fall arrest auxiliary device for power transmission towers according to claim 4, characterized in that, The roller (9) has a concave arc portion (901) for contacting the surface of the cable (001).

6. The fall arrest auxiliary device for power transmission towers according to claim 2, characterized in that, The inner wall of the wire passage (101) has a baffle (102), the rotating member (5) is between the damping member (6) and the baffle (102), and the lower bearing member (8) slides up and down and then approaches or moves away from the baffle (102).

7. A fall arrest auxiliary device for power transmission towers according to claim 6, characterized in that, The baffle portion (102) has a groove (103) parallel to the radial direction of the cylinder (1), and further includes: A rotating shaft (10) is rotatably mounted on the sliding end (401) and eccentrically mounted relative to the locking part (402). The rotating shaft (10) has sliding portions (1001) on both sides, which are slidably mounted within the sliding groove (103). An elastic element (11) is provided at one end on the inner wall of the groove (103) and at the other end on the sliding part (1001), providing a force for the sliding part (1001) to slide away from the cable (001).

8. A fall arrest auxiliary device for power transmission towers according to claim 6, characterized in that, Also includes: The fourth link (12) is hinged at one end to the lower bearing (8) and at the other end to the second link (3). After the lower bearing (8) moves away from the stop (102), the angle between the fourth link (12) and the cable (001) decreases. The first link (2), the second link (3), the third link (4) and the fourth link (12) together form a clamping assembly (1200). There are several clamping assemblies (1200) arranged circumferentially on the cylinder (1).

9. An installation process for a fall arrest auxiliary device for power transmission towers, characterized in that, A fall arrestor for power transmission towers as described in any one of claims 1 to 8.

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