A falling prevention device and method for repairing electric power tower

Abstract

The present invention relates to the field of electric power maintenance technology, and discloses an anti-fall device for electric power tower maintenance and a method thereof, comprising an anti-fall slide bar, a bidirectional telescopic rod, and a speed detection mechanism, wherein the anti-fall slide bar is in an I-shaped structure, and a hanging hole is provided on one side of the anti-fall slide bar, a sliding shell is slidably connected to the anti-fall slide bar, and the sliding shell is provided with four groups of rollers installed at a position inside the anti-fall slide bar, the four groups of rollers are rotatably connected to the sliding shell, and the four groups of rollers are tightly attached to the anti-fall slide bar. In the present invention, when a maintenance worker is performing maintenance, the sliding shell is connected to the maintenance worker through a safety rope, and when the maintenance worker climbs, the sliding shell is raised with the maintenance worker, and a hook passes through the hanging hole while being raised. Due to the arc structure of the hook, the hook will not extend into the hanging hole and will not be locked. When the maintenance worker descends, the hook passes through the hanging hole and is rebounded into the hanging hole due to the action of the torsion spring, and the hook is engaged with the hanging groove.

Description

Technical Field

[0001] This invention relates to the field of power maintenance technology, specifically to a fall protection device and method for power tower maintenance. Background Technology

[0002] With the development of the power industry, the requirements for efficiency and safety in power tower maintenance are becoming increasingly stringent. Existing fall protection devices need continuous improvement and innovation to adapt to complex and ever-changing maintenance conditions, provide more reliable protection, and ensure that the operational flexibility and efficiency of workers are not affected, thus guaranteeing the safe and efficient conduct of power tower maintenance work. During power tower maintenance, workers need to perform various operations at heights, such as replacing insulators and repairing lines. Due to the height of the towers and the complex working environment, there is a risk of workers accidentally falling. This not only poses a serious threat to the lives of workers but may also lead to a series of problems such as power supply interruptions. Traditional fall protection measures, such as the use of safety belts, while providing some protection, have certain limitations.

[0003] From the perspective of existing technology, common fall arrest devices used for power tower maintenance lack reliable and intelligent fall arrest locking mechanisms during the climbing and descent of maintenance personnel. Furthermore, some traditional fall arrest devices may only have a simple buffer design during descent, which cannot effectively stop the fall and may fail to prevent the fall from being effectively prevented. At the same time, the descent and ascent operations are difficult to switch flexibly, restricting the freedom of movement. Some fall arrest devices cannot flexibly adjust the distance between the fall arrest device components, making it difficult to adapt to maintenance operations at different locations on the tower. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a fall arrest device and method for power tower maintenance. It solves the problems of existing fall arrest devices lacking a reliable and intelligent fall arrest locking mechanism, and some traditional fall arrest devices may only have a simple buffer design during descent without a precise locking method, making it difficult to effectively prevent falls instantly. They also cannot flexibly adjust the distance between the fall arrest device components, making it difficult to adapt to maintenance operations at different locations on the tower.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fall arrest device and method for power tower maintenance, comprising a fall arrest sliding rod, a bidirectional telescopic rod, and a speed detection mechanism. The fall arrest sliding rod has an I-shaped structure, and a hanging hole is provided on one side of the fall arrest sliding rod. A sliding outer shell is slidably connected to the fall arrest sliding rod. Four sets of rollers are installed on the inner side of the sliding outer shell, and the four sets of rollers are rotatably connected to the sliding outer shell. The four sets of rollers are in close contact with the fall arrest sliding rod. A guide rail is installed on the inner side of the sliding outer shell near the middle position of the fall arrest sliding rod. The guide rail has a slider slidably connected inside. A threaded rod is rotatably connected to the center of the guide rail. One end of the threaded rod is rotatably connected to the guide rail, and the other end of the threaded rod passes through the sliding housing and is located outside the sliding housing. A slider is sleeved on the outside of the threaded rod. A threaded hole is opened at the center of the slider, and the slider is sleeved on the outside of the threaded rod based on the threaded hole. One side of the slider is slidably connected to the guide rail, and a rotating frame is installed on the other side of the slider. A hook is rotatably connected to the end of the rotating frame away from the slider, and a torsion spring is sleeved at the connection position between the hook and the rotating frame.

[0006] Preferably, the positions of the hook and the hanging hole correspond to each other, and a hanging groove is provided on the inner side of the hanging hole, and the hanging groove is engaged with the hook.

[0007] Preferably, a speed detection mechanism is installed at one end of the sliding housing, and a bidirectional telescopic rod is installed at the other end of the sliding housing. The speed detection mechanism is electrically connected to the bidirectional telescopic rod, and the housing of the bidirectional telescopic rod is fixedly connected to the outside of the sliding housing.

[0008] Preferably, the bidirectional telescopic rod has a cylindrical structure in the middle, and both ends of the bidirectional telescopic rod are output ends. Both ends of the bidirectional telescopic rod are rotatably connected to lead screws, and one end of each of the two sets of auxiliary frames is threaded to a lead screw. A connecting rod is installed on the other end of the auxiliary frame, and one end of each of the two sets of connecting rods is rotatably connected to the auxiliary frame, and the other end of the connecting rod is rotatably connected to a rotating frame.

[0009] Preferably, the rotating frame has an arc-shaped structure, with a connecting rod rotatably connected to one end of the rotating frame and a vertical rod installed at the other end of the rotating frame. A support rod is rotatably connected to the middle position of the rotating frame, with one end of the support rod rotatably connected to the rotating frame and the other end of the support rod fixedly connected to the outside of the sliding housing.

[0010] Preferably, one end of the vertical rod is rotatably connected to a rotating frame, and the other end of the vertical rod is fixedly connected to a rotating arm. One end of the rotating arm is equipped with a clamping block, and the other end of the rotating arm is rotatably connected to a support rod. One end of the rotating arm rotatably connected to the support rod is placed inside the rotating frame, and the end of the rotating arm near the support rod is fixedly connected to the vertical rod.

[0011] Preferably, the two sets of clamping blocks are placed in the grooves on both sides of the anti-fall slide bar. The clamping blocks are square in structure, and one end of the clamping block is fixedly connected to the rotating arm. A rubber pad to improve friction is installed on the side of the clamping block near the anti-fall slide bar.

[0012] Preferably, a pressure roller is installed inside the sliding housing. The pressure roller and the four sets of rollers are respectively placed on both sides of the anti-fall slide bar, and the pressure roller is in close contact with the anti-fall slide bar and is rotatably connected to the inner wall of the sliding housing.

[0013] Preferably, a hanging ring is installed on the sliding housing, one end of which is fixedly connected to the sliding housing, and the other end of which is annular. A handle is installed on the outer side of the sliding housing, and a threaded rod is fixedly connected to the handle at one end of the outer side of the sliding housing. An ice scraper is installed on the end of the sliding housing away from the bidirectional telescopic rod. The ice scraper is placed in the grooves on both sides of the anti-fall sliding rod, and the ice scraper has a right-angled triangular structure.

[0014] Preferably, a method for using a fall arrestor for power tower maintenance includes the following steps:

[0015] S1: Before installation, carefully inspect the sliding shell and the anti-fall slide bar. After confirming that there is no damage or abnormal deformation, smoothly install the sliding shell onto the anti-fall slide bar from one end.

[0016] S2: Securely connect the hanging ring on the sliding shell to the safety belt provided by the maintenance personnel using a safety rope, and tie a professional safety knot.

[0017] S3: Determine the safety status of the safety rope, turn the handle, fine-tune the hook position, use tools to assist in the check, and ensure that the hook can be accurately inserted into the hanging hole;

[0018] S4: Check the power supply of the speed detection mechanism and the bidirectional telescopic rod, conduct a power-on test, and confirm that the system is operating normally;

[0019] S5: Begin climbing operations. During the climbing process, pay close attention to the status of the device. After the operation is completed, remove the sliding outer casing from the bottom, store it in an orderly manner, remove the safety rope, and send the equipment back to the designated location for maintenance.

[0020] In summary, the technical effects and advantages of this invention are as follows:

[0021] 1. This invention utilizes the arc-shaped structure of the hook in conjunction with a torsion spring. Traditional fall arrest devices employ locking mechanisms that are either too simplistic or slow to react during climbing and descent. The design of this invention allows maintenance personnel to easily pass over the hanging hole during climbing, thanks to the hook's arc-shaped structure, avoiding unnecessary locking and ensuring unimpeded ascent. When the maintenance personnel descend, the hook, under the force of the torsion spring, quickly springs into the hanging hole and locks tightly into the hanging slot, instantly locking the sliding outer shell and preventing the personnel from falling, significantly reducing the risk of a fall.

[0022] 2. In this invention, regarding equipment adjustment and component protection, the guide rail, threaded rod, and slider within the sliding housing constitute a flexible adjustment system. By rotating the handle, the distance between the slider and the fall arrestor rod can be easily adjusted, thereby adjusting the distance between the hook and the hanging hole. Compared to traditional fixed-structure fall arrestors, this design provides maintenance personnel with more operating space and can adapt to maintenance work at different locations on the tower. Moreover, when the device is idle, the hook can be moved to a suitable position to avoid continuous contact with the hanging hole, thereby effectively reducing hook wear, extending the device's service life, and reducing maintenance costs.

[0023] 3. This invention achieves intelligent linkage between speed detection and emergency protection. The speed detection mechanism constantly monitors the descent speed of maintenance personnel. Once the speed exceeds a preset value, it immediately sends a signal to the bidirectional telescopic rod. As an electrically operated bidirectional telescopic rod, the bidirectional telescopic rod quickly extends, driving the rotating frame, rotating arm, and clamping blocks to tightly clamp the anti-fall slide bar. Compared to existing fall protection devices that rely on a single mechanical structure or manual intervention, this invention has a faster speed response and can trigger the emergency protection mechanism in a very short time, adding a solid line of defense for the safety of maintenance personnel. Especially in the event of a sudden accident causing a rapid fall, it greatly enhances the protection capability.

[0024] 4. This invention uses automatic clamping of the clamping blocks to decelerate the load, thereby assisting the hook to be hooked into the hanging hole and preventing the problem of unsuccessful hooking. At the same time, the distance between the two rotating frames can be adjusted by rotating the screws at both ends of the bidirectional telescopic rod, thereby adjusting the tightness of the clamping blocks and preventing loosening. It can also adapt to maintenance operations at different locations on the tower. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a fall protection device and method for power tower maintenance according to the present invention.

[0026] Figure 2 This is a schematic diagram of the overall structure of the power tower maintenance anti-fall device and method of the present invention from another angle.

[0027] Figure 3This is a schematic diagram of the overall structure of the sliding outer shell in the power tower anti-fall device and method for power tower maintenance of the present invention.

[0028] Figure 4 This is a schematic diagram of the overall structure of the hook in the anti-fall device and method for power tower maintenance of the present invention;

[0029] Figure 5 This is a cross-sectional view of the overall structure of the fall protection device and method for power tower maintenance according to the present invention.

[0030] Figure 6 This is a cross-sectional view of the sliding outer shell in the power tower maintenance anti-fall device and method of the present invention.

[0031] In the diagram: 1. Anti-fall sliding rod; 2. Hanging hole; 3. Sliding outer shell; 4. Roller; 5. Pressure roller; 6. Guide rail; 7. Threaded rod; 8. Handle; 9. Slider; 10. Threaded hole; 11. Rotating frame; 12. Hook; 13. Connecting rod; 14. Rotating frame; 15. Support rod; 16. Rotating arm; 17. Clamping block; 18. Hanging ring; 19. De-icing scraper; 20. Vertical rod; 21. Hanging groove; 22. Two-way telescopic rod; 23. Speed ​​detection mechanism; 24. Auxiliary frame. Detailed Implementation

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] refer to Figures 1-6The diagram illustrates a fall arrest device and method for power transmission tower maintenance, comprising a fall arresting slide bar 1, a bidirectional telescopic rod 22, and a speed detection mechanism 23. The fall arresting slide bar 1 has an I-shaped structure, with a hanging hole 2 on one side. A sliding housing 3 is slidably connected to the fall arresting slide bar 1. Four sets of rollers 4 are installed inside the sliding housing 3, rotating and tightly attached to the fall arresting slide bar 1. A guide rail 6 is installed inside the sliding housing 3 near the center of the fall arresting slide bar 1. A slider 9 is slidably connected inside the guide rail 6. A threaded rod 7 is rotatably connected to the center of the guide rail 6, with one end of the threaded rod 7 rotatably connected to the guide rail 6 and the other end passing through the sliding housing 3 and positioned outside the sliding housing 3. A slider 9 is fitted onto the outside of the threaded rod 7, with a threaded hole 10 at the center of the slider 9. The slider 9 is fitted onto the outside of the threaded rod 7 based on the threaded hole 10. One side of the slider 9 is slidably connected to the guide rail 6, and the other side of the slider 9 is equipped with a rotating frame 11. The end of the rotating frame 11 away from the slider 9 is rotatably connected to a hook 12, and a torsion spring is sleeved at the connection position between the hook 12 and the rotating frame 11. The positions of the hook 12 and the hanging hole 2 correspond to each other, and a hanging groove 21 is opened on the inner side of the hanging hole 2. The hanging groove 21 is engaged with the hook 12. When maintenance personnel are performing maintenance, the sliding shell 3 is connected to the maintenance personnel through a safety rope. When the maintenance personnel climb, the sliding shell 3 rises with the maintenance personnel. At the same time as rising, the hook 12 passes through the hanging hole 2. Due to the arc structure of the hook 12, the hook 12 will not extend into the hanging hole 2 and will not lock. When the maintenance personnel descend, the hook 12 passes through the hanging hole 2. Due to the force of the torsion spring, the hook 12 springs into the hanging hole 2, and the hook 12 is engaged with the hanging groove 21 to lock, causing the sliding shell 3 to stop and preventing the maintenance personnel from falling.

[0034] The sliding housing 3 has a speed detection mechanism 23 installed at one end and a bidirectional telescopic rod 22 installed at the other end. The speed detection mechanism 23 is electrically connected to the bidirectional telescopic rod 22. The outer shell of the bidirectional telescopic rod 22 is fixedly connected to the outside of the sliding housing 3. The middle position of the bidirectional telescopic rod 22 is cylindrical, and both ends of the bidirectional telescopic rod 22 are output ends. Both ends of the bidirectional telescopic rod 22 are rotatably connected to lead screws. One end of each of the two sets of auxiliary frames 24 is threadedly connected to the lead screws. The other end of the auxiliary frame 24 is equipped with a connecting rod 13. One end of each of the two sets of connecting rods 13 is rotatably connected to the auxiliary frame 24, and the other end of the connecting rod 13 is rotatably connected to a rotating frame 14. The rotating frame 14 has an arc-shaped structure. One end of the rotating frame 14 is rotatably connected to the connecting rod 13, and the other end of the rotating frame 14 is equipped with a vertical rod 20. A support rod 15 is rotatably connected to the middle position of the rotating frame 14. One end of the support rod 15 is rotatably connected to the rotating frame 14, and the other end of the support rod 15 is fixedly connected to the outside of the sliding housing 3. The vertical rod 20 has one end rotatably connected to the rotating frame 14, and the other end of the vertical rod 20 is fixedly connected to the rotating arm 16. A clamping block 17 is installed at one end of the rotating arm 16, and the other end of the rotating arm 16 is rotatably connected to the support rod 15. One end of the rotating arm 16 rotatably connected to the support rod 15 is placed inside the rotating frame 14, and the end of the rotating arm 16 near the support rod 15 is fixedly connected to the vertical rod 20. Two sets of clamping blocks 17 are placed in the grooves on both sides of the anti-fall sliding rod 1. The clamping blocks 17 have a square structure, and one end of the clamping block 17... The rotating arm 16 is fixedly connected, and the clamping block 17 is equipped with a rubber pad to increase friction on the side near the anti-fall slide bar 1. The speed detection mechanism 23 is electrically connected to the bidirectional telescopic rod 22, and the bidirectional telescopic rod 22 is an electric bidirectional telescopic rod. When the speed detection mechanism 23 detects that the speed exceeds the set value, it sends a signal to the bidirectional telescopic rod 22, and the bidirectional telescopic rod 22 extends, driving the rotating frame 14 to rotate, so that the rotating arm 16 and the clamping block 17 rotate, clamping the anti-fall slide bar 1, further improving safety.

[0035] It is worth noting that the speed detection mechanism 23 can detect its own speed and is powered by an external power source. For example, the speed can be calculated using devices such as airflow sensors. This is existing technology and will not be described in detail here.

[0036] The sliding outer shell 3 has a pressure roller 5 installed inside. The pressure roller 5 and four sets of rollers 4 are respectively placed on both sides of the anti-fall sliding rod 1. The pressure roller 5 is in close contact with the anti-fall sliding rod 1 and is rotatably connected to the inner wall of the sliding outer shell 3. A hanging ring 18 is installed on the sliding outer shell 3. One end of the hanging ring 18 is fixedly connected to the sliding outer shell 3, and the other end of the hanging ring 18 is annular. A handle 8 is installed on the outside of the sliding outer shell 3. The handle 8 is fixedly connected to a threaded rod 7 placed on one end of the outside of the sliding outer shell 3. An ice scraper 19 is installed on the end of the sliding outer shell 3 away from the bidirectional telescopic rod 22. The anti-fall sliding rod 1 has grooves on both sides, and the de-icing shovel 19 has a right-angled triangular structure. A guide rail 6 is installed inside the sliding outer shell 3. By turning the handle 8, the threaded rod 7 is rotated. The outer side of the threaded rod 7 is threaded with a slider 9, and the slider 9 slides on the guide rail 6. This allows the handle 8 to adjust the distance between the slider 9 and the anti-fall sliding rod 1. A hook 12 is rotatably connected to the slider 9, which can adjust the distance between the hook 12 and the hanging hole 2. The hook 12 can be moved when not in use to prevent the hook 12 from being damaged due to prolonged contact with the hanging hole 2.

[0037] One method for using a fall arrestor for power tower maintenance includes the following steps:

[0038] S1: Before installation, carefully inspect the sliding housing 3 and the anti-fall slide rod 1. After confirming that there is no damage or abnormal deformation, smoothly install the sliding housing 3 onto the anti-fall slide rod 1 from one end.

[0039] S2: Securely connect the hanging ring 18 on the sliding outer shell 3 to the safety belt provided by the maintenance personnel using a safety rope, and tie a professional safety knot.

[0040] S3: Determine the safety status of the safety rope, turn handle 8, fine-tune the position of hook 12, use tools to assist in the inspection, and ensure that hook 12 can be accurately inserted into hanging hole 2;

[0041] S4: Check the power supply of the speed detection mechanism 23 and the bidirectional telescopic rod 22, perform a power-on test, and confirm that the system is operating normally;

[0042] S5: Begin climbing operations. During the climbing process, pay close attention to the status of the device. After the operation is completed, remove the sliding outer casing 3 from the bottom, store it in an orderly manner, remove the safety rope, and send the equipment back to the designated location for maintenance.

[0043] The working principle of this invention is as follows: When maintenance personnel are performing maintenance, the sliding outer shell 3 is connected to the personnel via a safety rope. As the personnel climb, the sliding outer shell 3 rises with them. Simultaneously, the hook 12 passes through the hanging hole 2. Due to the arc-shaped structure of the hook 12, it does not extend into the hanging hole 2 and thus does not lock. When the personnel descend, the hook 12 passes through the hanging hole 2 and, due to the force of the torsion spring, springs into the hanging hole 2, engaging with the hanging groove 21 and locking it, causing the sliding outer shell 3 to stop and preventing the personnel from falling. A guide rail 6 is installed inside the sliding outer shell 3. By rotating the handle 8, the threaded rod 7 rotates. A slider 9 is threadedly connected to the outer side of the threaded rod 7 and slides on the guide rail 6. Rotating the handle 8 allows adjustment of the distance between the slider 9 and the anti-fall rod 1. A hook 1 is rotatably connected to the slider 9. 2. The distance between the hook 12 and the hanging hole 2 can be adjusted, allowing the hook 12 to be moved when not in use, preventing damage caused by prolonged contact between the hook 12 and the hanging hole 2. Simultaneously, the speed detection mechanism 23 is electrically connected to the bidirectional telescopic rod 22, which is an electric bidirectional telescopic rod. When the speed detection mechanism 23 detects a speed exceeding a set value, it sends a signal to the bidirectional telescopic rod 22, causing it to extend and rotate the rotating frame 14. This causes the rotating arm 16 and the clamping block 17 to rotate, clamping the anti-fall sliding rod 1, further improving safety. The automatic clamping of the clamping block 17 decelerates the movement, assisting in hooking the hook 12 into the hanging hole 2 and preventing unsuccessful hooking. Furthermore, the distance between the two rotating frames 14 can be adjusted by rotating the screws at both ends of the bidirectional telescopic rod 22, thereby adjusting the tightness of the clamping block 17 and preventing loosening.

[0044] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fall arrest device for power tower maintenance, comprising a fall arresting slide bar (1), a bidirectional telescopic bar (22), and a speed detection mechanism (23), characterized in that: The anti-fall slide bar (1) has an I-shaped structure, and a hanging hole (2) is provided on one side of the anti-fall slide bar (1). A sliding shell (3) is slidably connected to the anti-fall slide bar (1). Four sets of rollers (4) are installed on the inner side of the sliding shell (3) and are rotatably connected to the sliding shell (3). The four sets of rollers (4) are in close contact with the anti-fall slide bar (1). A guide rail (6) is installed on the inner side of the sliding shell (3) near the middle of the anti-fall slide bar (1). A slider (9) is slidably connected inside the guide rail (6). A threaded rod (7) is rotatably connected to the center of the guide rail (6). One end of the threaded rod (7) is rotatably connected to the guide rail (6), and the other end of the threaded rod (7) passes through the sliding housing (3) and is placed outside the sliding housing (3). A slider (9) is sleeved on the outside of the threaded rod (7). A threaded hole (10) is opened at the center of the slider (9), and the slider (9) is sleeved on the outside of the threaded rod (7) based on the threaded hole (10). One side of the slider (9) is slidably connected to the guide rail (6), and a rotating frame (11) is installed on the other side of the slider (9). A hook (12) is rotatably connected to the end of the rotating frame (11) away from the slider (9), and a torsion spring is sleeved at the connection position between the hook (12) and the rotating frame (11). The positions of the hook (12) and the hanging hole (2) correspond to each other, and the inner side of the hanging hole (2) is provided with a hanging groove (21), which is engaged with the hook (12); A handle (8) is installed on the outside of the sliding housing (3), and the handle (8) is fixedly connected to a threaded rod (7) located at one end of the outside of the sliding housing (3).

2. The fall arrestor for power tower maintenance according to claim 1, characterized in that: A speed detection mechanism (23) is installed at one end of the sliding shell (3), and a bidirectional telescopic rod (22) is installed at the other end of the sliding shell (3). The speed detection mechanism (23) is electrically connected to the bidirectional telescopic rod (22), and the shell of the bidirectional telescopic rod (22) is fixedly connected to the outside of the sliding shell (3).

3. A fall arrestor for power tower maintenance according to claim 2, characterized in that: The bidirectional telescopic rod (22) has a cylindrical structure in the middle position, and both ends of the bidirectional telescopic rod (22) are output ends. Both ends of the bidirectional telescopic rod (22) are rotatably connected to lead screws, and one end of the two sets of auxiliary frames (24) is threadedly connected to the lead screws; and the other end of the auxiliary frame (24) is equipped with a connecting rod (13). One end of the two sets of connecting rods (13) is rotatably connected to the auxiliary frame (24), and the other end of the connecting rod (13) is rotatably connected to the rotating frame (14).

4. A fall arrestor for power tower maintenance according to claim 3, characterized in that: The rotating frame (14) has an arc-shaped structure. One end of the rotating frame (14) is rotatably connected to a connecting rod (13), and the other end of the rotating frame (14) is equipped with a vertical rod (20). A support rod (15) is rotatably connected to the middle position of the rotating frame (14). One end of the support rod (15) is rotatably connected to the rotating frame (14), and the other end of the support rod (15) is fixedly connected to the outside of the sliding shell (3).

5. A fall arrestor for power tower maintenance according to claim 4, characterized in that: One end of the vertical rod (20) is rotatably connected to the rotating frame (14), and the other end of the vertical rod (20) is fixedly connected to the rotating arm (16). One end of the rotating arm (16) is equipped with a clamp (17), and the other end of the rotating arm (16) is rotatably connected to the support rod (15). One end of the rotating arm (16) rotatably connected to the support rod (15) is placed inside the rotating frame (14), and the end of the rotating arm (16) near the support rod (15) is fixedly connected to the vertical rod (20).

6. A fall arrestor for power tower maintenance according to claim 5, characterized in that: The two sets of clamping blocks (17) are placed in the grooves on both sides of the anti-fall sliding rod (1). The clamping blocks (17) are square in shape, and one end of the clamping block (17) is fixedly connected to the rotating arm (16). A rubber pad to improve friction is installed on the side of the clamping block (17) near the anti-fall sliding rod (1).

7. A fall arrestor for power tower maintenance according to claim 1, characterized in that: The sliding housing (3) is equipped with a pressure roller (5). The pressure roller (5) and the four sets of rollers (4) are respectively placed on both sides of the anti-fall sliding rod (1). The pressure roller (5) is in close contact with the anti-fall sliding rod (1) and is rotatably connected to the inner wall of the sliding housing (3).

8. A fall arrestor for power tower maintenance according to claim 7, characterized in that: A hanging ring (18) is installed on the sliding shell (3). One end of the hanging ring (18) is fixedly connected to the sliding shell (3), and the other end of the hanging ring (18) is annular. An ice scraper (19) is installed on the end of the sliding shell (3) away from the bidirectional telescopic rod (22). The ice scraper (19) is placed in the grooves on both sides of the anti-fall sliding rod (1), and the ice scraper (19) has a right-angled triangular structure.

9. The method of using a fall arrestor for power tower maintenance according to any one of claims 1-8, characterized in that: Includes the following steps: S1: Before installation, carefully inspect the sliding shell (3) and the anti-fall slide rod (1). After confirming that there is no damage or abnormal deformation, smoothly install the sliding shell (3) from one end of the anti-fall slide rod (1) onto the anti-fall slide rod (1). S2: Securely connect the hanging ring (18) on the sliding outer shell (3) to the safety belt provided by the maintenance personnel through the safety rope, and tie a professional safety knot; S3: Determine the safety status of the safety rope, turn the handle (8), fine-tune the position of the hook (12), use tools to assist in the inspection, and ensure that the hook (12) can be accurately inserted into the hanging hole (2). S4: Check the power supply of the speed detection mechanism (23) and the bidirectional telescopic rod (22), conduct a power-on test, and confirm that the system is operating normally; S5: Start climbing. During the climbing process, pay attention to the status of the device. After the operation is completed, take out the sliding shell (3) from the bottom, store it in an orderly manner, remove the safety rope, and send the equipment back to the designated location for maintenance.

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