Anti-falling device for electric iron tower maintenance and method thereof

Abstract

The invention relates to the technical field of electric power overhaul, and discloses an anti-falling device for electric power iron tower overhaul and a method thereof.The anti-falling device comprises an anti-falling sliding rod, a bidirectional telescopic rod and a speed detection mechanism, the anti-falling sliding rod is of an I-shaped structure, a hanging hole is formed in one side of the anti-falling sliding rod, and a sliding shell is slidably connected to the anti-falling sliding rod; and four groups of rolling wheels are mounted at the positions, on the inner sides of the anti-falling sliding rods, of the sliding shell, are rotationally connected with the sliding shell and are tightly attached to the anti-falling sliding rods. According to the invention, when a maintainer carries out maintenance, the sliding shell is connected with the maintainer through the safety rope, when the maintainer climbs, the sliding shell rises along with the maintainer, the hook passes through the hanging hole while rising, and due to the arc-shaped structure of the hook, the hook cannot extend into the hanging hole and cannot be locked; when the maintainer descends, the hook passes through the hanging hole, the hook is bounced into the hanging hole due to the acting force of the torsion spring, and the hook is clamped with the hanging groove.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power maintenance, and in particular to a falling prevention device and method for maintenance of electric power towers. Background Art

[0002] With the development of the electric power industry, the efficiency and safety requirements for tower maintenance are getting higher and higher. The existing anti-fall devices need to be continuously improved and innovated to adapt to the complex and changeable maintenance conditions and provide more reliable protection without affecting the operating flexibility and work efficiency of the staff, so as to ensure that the maintenance of power towers can be carried out safely and efficiently. During the maintenance of power towers, the staff need to perform various operations at heights, such as replacing insulators and repairing lines. Due to the high height of the tower and the complex working environment, there is a risk of staff accidentally falling, which will not only pose a serious threat to the life safety of the staff, but also may lead to a series of problems such as power supply interruption. Traditional anti-fall measures, such as the use of safety belts, can play a protective role to a certain extent, but there are some limitations.

[0003] From the perspective of existing technologies, common anti-fall devices used for power tower maintenance lack a reliable and intelligent anti-fall locking mechanism during the climbing and descending processes of maintenance personnel. In addition, some traditional anti-fall equipment may only have a simple buffer design during the descent process and cannot effectively stop the device, making it difficult to effectively prevent the fall. At the same time, it is difficult to flexibly switch between descending and ascending operations, making it difficult to move freely. Some anti-fall equipment cannot flexibly adjust the distance between the components of the anti-fall device, making it difficult to adapt to maintenance operations at different locations of the tower. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a fall prevention device and method for maintenance of power towers, which solves the problems that the existing fall prevention devices lack a reliable and intelligent fall prevention locking mechanism, and like some traditional fall prevention equipment, during the descent process, they may only have a simple buffer design without a precise locking method, making it difficult to effectively prevent the occurrence of a fall in an instant, and the distance between the components of the fall prevention device cannot be flexibly adjusted, making it difficult to adapt to maintenance operations at different positions of the tower.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: an anti-falling device for maintenance of power towers and a method thereof, comprising an anti-falling slide bar, a bidirectional telescopic rod and a speed detection mechanism, the anti-falling slide bar is in an I-shaped structure, and a hanging hole is provided on one side of the anti-falling slide bar, a sliding shell is slidably connected to the anti-falling slide bar, and four groups of rollers are installed at a position where the sliding shell is placed inside the anti-falling slide bar, the four groups of rollers are rotatably connected to the sliding shell, the four groups of rollers are closely attached to the anti-falling slide bar, and a guide rail is installed at the middle position of the inner side of the sliding shell near the anti-falling slide bar. A slider is slidably connected inside the guide rail, and a threaded rod is rotatably connected to the center position 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 shell and is placed outside the sliding shell. A slider is sleeved on the outside of the threaded rod, a threaded hole is opened at the center position 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, and 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 inside 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 shell, and a bidirectional telescopic rod is installed at the other end of the sliding shell, the speed detection mechanism is electrically connected to the bidirectional telescopic rod, and the shell of the bidirectional telescopic rod is fixedly connected to the outside of the sliding shell.

[0008] Preferably, the middle position of the bidirectional telescopic rod is a cylindrical structure, and the two ends of the bidirectional telescopic rod are output ends, the two ends of the bidirectional telescopic rod are respectively rotationally connected to the screw rods, and one end of the two groups of auxiliary frames are threadedly connected to the screw rods; and a connecting rod is installed at the other end of the auxiliary frame, one end of the two groups of connecting rods is rotationally connected to the auxiliary frame, and the other end of the connecting rod is rotationally connected to the rotating frame.

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

[0010] Preferably, one end of the vertical rod is rotatably connected to the 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 on the inner side of the rotating frame, and one end of the rotating arm close to the support rod is fixedly connected to the vertical rod.

[0011] Preferably, the two groups of clamping blocks are placed in grooves on both sides of the anti-fall slide bar, the clamping blocks are square in structure, one end of the clamping blocks is fixedly connected to the rotating arm, and a rubber pad for increasing friction is installed on the side of the clamping blocks close to the anti-fall slide bar.

[0012] Preferably, a pressure wheel is installed inside the sliding shell, and the pressure wheel and the four groups of rollers are respectively placed on both sides of the anti-falling slide bar, and the pressure wheel is close to the anti-falling slide bar, and the pressure wheel is rotatably connected to the inner wall of the sliding shell.

[0013] Preferably, a hanging ring is installed on the sliding shell, one end of the hanging ring is fixedly connected to the sliding shell, and the other end of the hanging ring is ring-shaped, a handle is installed on the outer side of the sliding shell, the handle is fixedly connected to one end of the threaded rod placed on the outer side of the sliding shell, and a de-icing shovel is installed on the end of the sliding shell away from the two-way telescopic rod, the de-icing shovel is placed in the grooves on both sides of the anti-fall sliding rod, and the de-icing shovel is a right-angled triangle structure.

[0014] Preferably, a method for a fall prevention device for power tower maintenance comprises the following steps: S1: Before installation, carefully check the sliding housing and the anti-falling slide bar. After confirming that there is no damage or abnormal deformation, install the sliding housing on the anti-falling slide bar steadily from one end of the anti-falling slide bar. S2: Connect the hanging ring on the sliding housing to the safety belt of the maintenance personnel through the safety rope and tie a professional safety rope knot; S3: Determine the safety status of the safety rope, turn the handle, fine-tune the hook position, and use tools to assist in checking to ensure that the hook can be accurately inserted into the hanging hole; S4: Check the power supply of the speed detection mechanism and the two-way telescopic rod, perform a power-on test, and confirm that the system is operating normally; S5: Start climbing. Keep an eye on the device status during the climbing process. After the operation is completed, remove the sliding shell from the bottom, store it in order, remove the safety rope, and return the device to the designated location for maintenance.

[0015] In summary, the technical effects and advantages of the present invention are as follows: 1. In the present invention, the arc structure of the hook is used in conjunction with the torsion spring. In the process of climbing and descending, the locking mechanism of the traditional anti-fall device is either too simple or slow to respond. The design of the present invention allows the maintenance personnel to climb while the hook passes over the hanging hole smoothly with the help of the arc structure, avoiding unnecessary locking, not affecting the maintenance personnel's ascending action, and ensuring freedom of movement. When the maintenance personnel descend, the hook is acted upon by the torsion spring and quickly bounces into the hanging hole, and is tightly engaged with the hanging groove, instantly locking the sliding shell, preventing the maintenance personnel from falling in time, and greatly reducing the risk of falling.

[0016] 2. In the present invention, in terms of equipment adjustment and component protection, the guide rails, threaded rods and sliders in the sliding housing constitute a flexible adjustment system. By turning the handle, the distance between the slider and the anti-falling slide bar can be easily adjusted, and then the distance between the hook and the hanging hole can be adjusted. Compared with the traditional anti-falling device with a fixed structure, this design gives maintenance personnel more operating space and can adapt to maintenance operations at different positions of the tower. Moreover, when the device is in an idle state, the hook can be moved to a suitable position to avoid continuous contact with the hanging hole, thereby effectively reducing the wear of the hook, extending the service life of the device, and reducing maintenance costs.

[0017] 3. In the present invention, intelligent linkage is achieved in speed detection and emergency protection. The speed detection mechanism monitors the descent speed of the maintenance personnel at all times, and once the speed exceeds the preset value, it immediately sends a signal to the two-way telescopic rod. As an electric two-way telescopic rod, the two-way telescopic rod is quickly extended to drive the rotating frame, rotating arm and clamping block to tightly clamp the anti-fall slide bar. Compared with the existing anti-fall devices that rely on a single mechanical structure or manual intervention, the speed response of the present invention is faster 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 when sudden accidents cause people to fall rapidly, greatly improving the protection capability.

[0018] 4. The present invention decelerates by automatically clamping the clamping block, thereby assisting the hook to be hung into the hanging hole and preventing the problem of unsuccessful hanging. At the same time, the distance between the rotating frames on both sides can be adjusted by rotating the screw rods at both ends of the bidirectional telescopic rod, thereby adjusting the tightness of the clamping block to prevent looseness, and at the same time, it can adapt to maintenance operations at different positions of the iron tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a falling prevention device and method for power tower maintenance according to the present invention; Figure 2 It is a schematic diagram of the overall structure of a falling prevention device and method for power tower maintenance according to the present invention from another angle; Figure 3 It is a schematic diagram of the overall structure of a sliding housing in a falling prevention device for power tower maintenance and a method thereof according to the present invention; Figure 4 It is a schematic diagram of the overall structure of a hook in a falling prevention device for overhauling an electric power tower and a method thereof according to the present invention; Figure 5 This is a cross-sectional view of the overall structure of a falling prevention device and method for power tower maintenance according to the present invention; Figure 6 The present invention is a cross-sectional view of a sliding housing in a fall prevention device and method for repairing an electric power tower.

[0020] In the figure: 1. Anti-fall slide bar; 2. Hanging hole; 3. Sliding shell; 4. Roller; 5. Pressure wheel; 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. Clamp; 18. Hanging ring; 19. De-icing shovel; 20. Vertical rod; 21. Hanging slot; 22. Two-way telescopic rod; 23. Speed ​​detection mechanism; 24. Auxiliary frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] refer to Figure 1-Figure 6 The anti-fall device and method for overhauling an electric power tower shown in the figure include an anti-falling slide bar 1, a bidirectional telescopic rod 22 and a speed detection mechanism 23, the anti-falling slide bar 1 is an I-shaped structure, and a hanging hole 2 is provided on one side of the anti-falling slide bar 1, a sliding shell 3 is slidably connected to the anti-falling slide bar 1, and the sliding shell 3 is arranged on the inner side of the anti-falling slide bar 1 and is provided with four groups of rollers 4, the four groups of rollers 4 are rotatably connected to the sliding shell 3, and the four groups of rollers 4 are closely attached to the anti-falling slide bar 1, a guide rail 6 is installed on the inner side of the sliding shell 3 near the middle position of the anti-falling slide bar 1, a slider 9 is slidably connected inside the guide rail 6, a threaded rod 7 is rotatably connected to the center position 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 shell 3 and is placed outside the sliding shell 3, a slider 9 is sleeved on the outer side of the threaded rod 7, a threaded hole 10 is provided at the center position of the slider 9, and the slider 9 is sleeved on the outer side of the threaded rod 7 based on the threaded hole 10, and the sliding When the maintenance personnel descend, the hook 12 passes through the hanging hole 2, and the hook 12 bounces into the hanging hole 2 due to the action of the torsion spring, and the hook 12 is engaged with the hanging groove 21 to be locked, causing the sliding shell 3 to stop, preventing the maintenance personnel from falling.

[0023] Among them, a speed detection mechanism 23 is installed at one end of the sliding shell 3, and a two-way telescopic rod 22 is installed at the other end of the sliding shell 3, the speed detection mechanism 23 is electrically connected to the two-way telescopic rod 22, the shell of the two-way telescopic rod 22 is fixedly connected to the outside of the sliding shell 3, the middle position of the two-way telescopic rod 22 is a cylindrical structure, and the two ends of the two-way telescopic rod 22 are output ends, the two ends of the two-way telescopic rod 22 are respectively rotatably connected to the screw rod, and one end of the two groups of auxiliary frames 24 is threadedly connected to the screw rod; and a connecting rod 13 is installed at the other end of the auxiliary frame 24, one end of the two groups 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, the rotating frame 14 is 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 installed with a vertical rod 20, the middle position of the rotating frame 14 is rotatably connected to the support rod 15, 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 The vertical rod 20 is rotatably connected to the rotating frame 14 at one end, and the other end of the vertical rod 20 is fixedly connected to the rotating arm 16, and 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, and the end of the rotating arm 16 rotatably connected to the support rod 15 is placed on the inner side of the rotating frame 14, and the end of the rotating arm 16 close to the support rod 15 is fixedly connected to the vertical rod 20, and two sets of clamping blocks 17 are placed in the grooves on both sides of the anti-falling slide bar 1, and the clamping blocks 17 are square in structure, and one end of the clamping blocks 17 The rotating arm 16 is fixedly connected, and a rubber pad for improving friction is installed on the side of the clamping block 17 close to the anti-falling slide bar 1. The speed detection mechanism 23 is electrically connected to the two-way telescopic rod 22, and the two-way telescopic rod 22 is an electric two-way telescopic rod. When the speed detection mechanism 23 detects that the speed exceeds the set value, a signal is sent to the two-way telescopic rod 22, and the two-way 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-falling slide bar 1, and further improving safety.

[0024] It is worth noting that the speed detection mechanism 23 can detect its own speed and be powered by an external power supply. For example, the speed can be calculated by devices such as an air flow rate sensor. This is a prior art and will not be described in detail here.

[0025] Among them, a pressure wheel 5 is installed inside the sliding shell 3, and the pressure wheel 5 and the four sets of rollers 4 are respectively placed on both sides of the anti-falling slide bar 1, and the pressure wheel 5 is close to the anti-falling slide bar 1, and the pressure wheel 5 is rotatably connected to the inner wall of the sliding shell 3, and 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, and a handle 8 is installed on the outside of the sliding shell 3, and the handle 8 is fixedly connected to the end of the threaded rod 7 placed on the outside of the sliding shell 3, and an ice-removing shovel 19 is installed on the end of the sliding shell 3 away from the two-way telescopic rod 22, and the ice-removing shovel 19 is placed The de-icing shovel 19 is in the grooves on both sides of the anti-falling slide bar 1, and the de-icing shovel 19 is a right-angled triangle structure. A guide rail 6 is installed inside the sliding shell 3. By turning the handle 8, the threaded rod 7 is driven to rotate, and the outer side of the threaded rod 7 is threadedly connected with a slider 9, and the slider 9 slides on the guide rail 6, so that the handle 8 can be turned to adjust the distance between the slider 9 and the anti-falling slide bar 1. The slider 9 is rotatably connected with a hook 12, and the distance between the hook 12 and the hanging hole 2 can be adjusted. The hook 12 can be moved when not in use to prevent the hook 12 from being damaged by long-term contact with the hanging hole 2.

[0026] Among them, a method for using an anti-fall device for power tower maintenance includes the following steps: S1: Before installation, carefully check the sliding housing 3 and the anti-falling slide bar 1. After confirming that there is no damage or abnormal deformation, the sliding housing 3 is stably installed on the anti-falling slide bar 1 from one end of the anti-falling slide bar 1; S2: The hanging ring 18 on the sliding housing 3 is firmly connected to the safety belt equipped by the maintenance personnel through the safety rope, and a professional safety rope knot is tied; S3: Determine the safety status of the safety rope, turn the handle 8, fine-tune the position of the hook 12, and use tools to assist in the inspection to ensure that the hook 12 can accurately extend into the hanging hole 2; S4: Check the power supply of the speed detection mechanism 23 and the two-way telescopic rod 22, perform a power-on test, and confirm that the system is operating normally; S5: Start the climbing operation. During the climbing process, always 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 order, remove the safety rope, and return the equipment to the designated location for maintenance.

[0027] The working principle of the present invention is as follows: when the maintenance personnel are carrying out maintenance, the sliding housing 3 is connected to the maintenance personnel through a safety rope. When the maintenance personnel climb, the sliding housing 3 is raised with the maintenance personnel. While 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 be locked. When the maintenance personnel descends, the hook 12 passes through the hanging hole 2. The hook 12 is rebounded into the hanging hole 2 due to the force of the torsion spring. The hook 12 is engaged with the hanging groove 21 and locked, causing the sliding housing 3 to stop and prevent the maintenance personnel from falling. A guide rail 6 is installed inside the sliding housing 3. By turning the handle 8, the threaded rod 7 is driven to rotate, and the outer side of the threaded rod 7 is threadedly connected to a slider 9, and the slider 9 slides on the guide rail 6, so that the handle 8 can be turned to adjust the distance between the slider 9 and the anti-falling slide bar 1. The slider 9 is rotatably connected to the hook 1 2, the distance between the hook 12 and the hanging hole 2 can be adjusted, and the hook 12 can be moved when not in use to prevent the hook 12 from being damaged by long-term contact with the hanging hole 2. At the same time, the speed detection mechanism 23 is electrically connected to the two-way telescopic rod 22, and the two-way telescopic rod 22 is an electric two-way telescopic rod. When the speed detection mechanism 23 detects that the speed exceeds the set value, a signal is sent to the two-way telescopic rod 22, and the two-way telescopic rod 22 extends, driving the rotating frame 14 to rotate, so that the rotating arm 16 and the clamping block 17 rotate to clamp the anti-falling slide bar 1, further improving safety; the automatic clamping of the clamping block 17 is used to slow down, thereby assisting the hook 12 to be hung in the hanging hole 2, and preventing the problem of unsuccessful hanging; at the same time, the screw rods at both ends of the two-way telescopic rod 22 can be rotated to adjust the distance between the rotating frames 14 on both sides, thereby adjusting the tightness of the clamping block 17 to prevent looseness.

[0028] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0029] Finally, it should be noted that the above 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A falling prevention device for maintenance of an electric power tower, comprising a falling prevention slide bar (1), a bidirectional telescopic rod (22) and a speed detection mechanism (23), characterized in that: The anti-falling slide bar (1) is in an I-shaped structure, and a hanging hole (2) is provided on one side of the anti-falling slide bar (1); a sliding shell (3) is slidably connected to the anti-falling slide bar (1); the sliding shell (3) is arranged inside the anti-falling slide bar (1) and is provided with four groups of rollers (4); the four groups of rollers (4) are rotatably connected to the sliding shell (3); the four groups of rollers (4) are closely attached to the anti-falling slide bar (1); a guide rail (6) is installed on the inner side of the sliding shell (3) near the middle position of the anti-falling slide bar (1); a slider (9) is slidably connected to the inside of the guide rail (6); a threaded rod (7) is rotatably connected to the center position of the guide rail (6); 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 outer side 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 outer side 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); an 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 (14).

2. The anti-falling device for power tower maintenance according to claim 1 is characterized in that: The positions of the hook (12) and the hanging hole (2) correspond to each other, and a hanging groove (21) is provided on the inner side of the hanging hole (2), and the hanging groove (21) is engaged with the hook (12).

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

4. The anti-falling device for power tower maintenance according to claim 3 is characterized in that: The middle position of the bidirectional telescopic rod (22) is a cylindrical structure, and the two ends of the bidirectional telescopic rod (22) are output ends. The two ends of the bidirectional telescopic rod (22) are respectively rotatably connected to the screw rod, and one end of the two groups of auxiliary frames (24) is threadedly connected to the screw rod; and a connecting rod (13) is installed at the other end of the auxiliary frame (24), one end of the two groups 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).

5. The anti-falling device for power tower maintenance according to claim 4 is 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 installed with a vertical rod (20), the middle position of the rotating frame (14) is rotatably connected to a supporting rod (15), one end of the supporting rod (15) is rotatably connected to the rotating frame (14), and the other end of the supporting rod (15) is fixedly connected to the outside of the sliding housing (3).

6. The anti-falling device for power tower maintenance according to claim 5 is 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 a 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 supporting rod (15); one end of the rotating arm (16) rotatably connected to the supporting rod (15) is placed on the inner side of the rotating frame (14), and one end of the rotating arm (16) close to the supporting rod (15) is fixedly connected to the vertical rod (20).

7. The anti-falling device for power tower maintenance according to claim 6 is characterized in that: Two groups of the clamping blocks (17) are placed in grooves on both sides of the anti-falling slide bar (1); the clamping blocks (17) are of a square structure, one end of the clamping blocks (17) is fixedly connected to the rotating arm (16), and a rubber pad for increasing friction is installed on one side of the clamping blocks (17) close to the anti-falling slide bar (1).

8. The anti-falling device for power tower maintenance according to claim 1 is characterized in that: A pressure wheel (5) is installed inside the sliding housing (3). The pressure wheel (5) and the four groups of rollers (4) are respectively placed on both sides of the anti-falling slide bar (1). The pressure wheel (5) is closely attached to the anti-falling slide bar (1), and the pressure wheel (5) is rotatably connected to the inner wall of the sliding housing (3).

9. The anti-falling device for power tower maintenance according to claim 8, characterized in that: The sliding housing (3) is provided with a hanging ring (18), one end of which is fixedly connected to the sliding housing (3), and the other end of which is in the shape of a ring. A handle (8) is provided on the outside of the sliding housing (3), and the handle (8) is fixedly connected to one end of a threaded rod (7) disposed on the outside of the sliding housing (3). An ice-removing shovel (19) is provided on one end of the sliding housing (3) away from the bidirectional telescopic rod (22), and the ice-removing shovel (19) is disposed in grooves on both sides of the anti-falling sliding rod (1), and the ice-removing shovel (19) is in the shape of a right-angled triangle.

10. A method for using a fall prevention device for power tower maintenance according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Before installation, carefully check the sliding housing (3) and the anti-falling slide bar (1) to ensure that they are not damaged or deformed. Then, install the sliding housing (3) on the anti-falling slide bar (1) from one end of the anti-falling slide bar (1) in a stable manner. S2: The hanging ring (18) on the sliding housing (3) is firmly connected to the safety belt equipped by the maintenance personnel through the safety rope, and a professional safety rope knot is tied; S3: Determine the safety status of the safety rope, turn the handle (8), fine-tune the position of the hook (12), and use tools to assist in checking to ensure that the hook (12) can accurately extend into the hanging hole (2); S4: Check the power supply of the speed detection mechanism (23) and the two-way telescopic rod (22), perform a power-on test, and confirm that the system is operating normally; S5: Start the climbing operation. During the climbing process, always pay attention to the status of the device. After the operation is completed, take out the sliding housing (3) from the bottom, store it in order, remove the safety rope, and return the device to the designated location for maintenance.

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