High-altitude anti-falling device for electric power iron tower

Abstract

The invention discloses an electric power iron tower high-altitude anti-falling device, and belongs to the field of electric power transmission operation safety devices.The electric power iron tower high-altitude anti-falling device comprises a base, two symmetrically-distributed guide rails are fixedly installed at the bottom of the base, a controller is fixedly installed between the two guide rails, clamping grooves are formed in the two sides in the guide rails, and inserting openings are formed outside the guide rails and extend into the clamping grooves; a photoelectric speed sensor is designed to detect the state of the movable seat, the photoelectric speed sensor is matched with the active protection mechanism to work, abnormal displacement detection is carried out on a movable structure in the anti-falling guide rail, and the anti-falling guide rail is arranged in the anti-falling guide rail in a sliding mode, so that the anti-falling effect of the anti-falling guide rail is improved. When abnormal displacement occurs in the anti-falling guide rail, the active protection mechanism works and performs active locking action on the movable structure in the anti-falling guide rail, the passive emergency mechanism adopts a graded braking strategy, and the high-altitude anti-falling device for the electric power iron tower has dual guarantees of active protection and passive emergency.

Description

Technical Field

[0001] The present invention relates to the technical field of safety devices for power transmission operations, and particularly to an anti-falling device for high-altitude power transmission towers. Background Art

[0002] The anti-falling device for high-altitude power transmission towers is an important means to ensure the personal safety of tower climbing operators in the power transmission profession. These devices play a crucial role in high-altitude operations of power transmission towers and can effectively prevent operators from falling from high altitudes due to accidental slips.

[0003] There is a prior art power high-altitude anti-falling protection device with the publication number CN222566652U, which specifically discloses a device including a protective shell, a fixing unit, a power transmission unit, and a converging unit; a fixing unit is installed at the upper end of the protective shell; the fixing unit includes a mounting plate, square holes, circular holes, square blocks, threaded columns, and arc-shaped plates. The front end inside the protective shell is fixedly connected with a mounting plate. The front end of the mounting plate is fixedly provided with eight square holes. The front end inside the mounting plate is provided with eight circular holes. The square holes communicate with the square holes. Square blocks are slidably connected inside the square holes. Two arc-shaped plates are fixedly connected to the front end of the square blocks. A threaded column is fixedly connected to the rear end of the square blocks.

[0004] Although the existing anti-falling devices for high-altitude power transmission towers reduce the falling risk to a certain extent, when abnormal displacement occurs in the moving structure inside the guide rail of the hoisting device during power transmission tower operations, this may mean that the anti-falling device is at risk of damage or failure. If this abnormal situation cannot be detected in a timely manner, a warning cannot be issued before an accident occurs, thus increasing the falling risk of high-altitude operators. Therefore, there are limitations in anti-falling warning and it is impossible to detect abnormal displacement of the moving structure inside the guide rail. To solve the above problems, we propose an anti-falling device for high-altitude power transmission towers. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the anti-falling device for high-altitude power transmission towers cannot detect abnormal displacement of the moving structure inside the guide rail of the hoisting device, and to propose an anti-falling device for high-altitude power transmission towers.

[0006] To achieve the above purpose, the present invention adopts the following technical solution:

[0007] An anti-falling device for high-altitude power transmission towers includes a base. A driving mechanism is provided at the upper end of the base. The driving mechanism is sleeved on an external rod and a tower top member, and the driving mechanism can drive the base to move along the external rod and the tower top member.

[0008] Two symmetrically distributed guide rails are fixedly installed at the bottom of the base. A controller is fixedly installed between the two guide rails. Card slots are opened on both sides inside the guide rails, and a socket is opened outside the guide rails. The socket extends into the card slot. A movable seat is slidably arranged inside the guide rails. The side of the movable seat is slidably arranged in the card slot. A hoisting mechanism is installed on the movable seat. The hoisting mechanism is used for hoisting operating personnel. An adjusting mechanism is arranged inside the guide rails. The adjusting mechanism is connected to the movable seat and is used for adjusting the height of the movable seat. Active braking mechanisms are installed outside both guide rails. The active braking mechanisms pass through the sockets and brake the movable seat. The controller is used to control the operation of the active braking mechanisms.

[0009] Preferably, the driving mechanism includes two symmetrically distributed kits. The two kits can be sleeved on an external rod and a top member of the tower. The upper ends of the two kits are detachably connected together by a plurality of fastening bolts. The bottom of the kit is connected to the base by screws.

[0010] Preferably, the driving mechanism further includes a notch. The notch is opened outside the kit and penetrates the kit. A friction wheel is arranged inside the notch. A connecting shaft is fixedly installed on the friction wheel. The upper end of the connecting shaft extends to the top of the kit. A first bevel gear is fixedly installed at the top of the connecting shaft. A protective cover is fixedly installed outside the kit. A first servo motor is fixedly installed inside the protective cover. A second bevel gear is fixedly installed at the output shaft end of the first servo motor. The second bevel gear meshes with the first bevel gear.

[0011] Preferably, the adjusting mechanism includes a first winding wheel rotatably installed at the upper end inside the guide rail. A first steel cable is fixedly connected to the top of the movable seat. The upper end of the first steel cable is fixedly connected inside the first winding wheel, and the first steel cable is wound inside the first winding wheel. A second servo motor is fixedly installed outside the guide rail. The output shaft of the second servo motor penetrates the guide rail and is fixedly connected to the first winding wheel.

[0012] Preferably, the second servo motor is electrically connected to the controller. The controller is used to control the operation of the second servo motor.

[0013] Preferably, the active braking mechanism includes a mounting frame. The mounting frame is fixedly installed outside the guide rail. A pressing plate is arranged outside the guide rail. One end of the pressing plate can pass through the socket and contact the side of the movable seat. Anti-slip textures are provided on the contact surfaces of the pressing plate and the movable seat. A plurality of electric push rods are fixedly installed inside the mounting frame at equal intervals up and down. The output ends of the electric push rods are all fixedly connected to the pressing plate. The electric push rods are electrically connected to the controller. The controller is used to control the operation of the electric push rods.

[0014] Preferably, an optoelectronic speed sensor is installed at the inner top of the guide rail. The optoelectronic speed sensor faces the movable seat and is electrically connected to the controller.

[0015] Preferably, two hydropneumatic dampers are installed at the inner bottom of the guide rail at intervals. A gasbag is fixedly connected to the center of the inner bottom of the guide rail. An air chamber is fixedly installed in the guide rail. An air pipe is connected and fixedly connected to the air chamber. One end of the air pipe is connected to the gasbag. A solenoid valve is installed on the air pipe. The air chamber is filled with high-pressure gas. The solenoid valve is electrically connected to the controller, and the controller is used to control the solenoid valve to work.

[0016] Preferably, the hoisting mechanism includes a second steel cable. The upper end of the second steel cable is fixedly connected to the movable seat. It also includes a housing arranged outside the guide rail. The housing is fixedly connected to the bottom of the second steel cable. A second winding wheel is rotatably installed in the housing. A third steel cable is fixedly connected and wound in the second winding wheel. The third steel cable passes through the housing. A stepping motor is fixed on the housing. The output shaft of the stepping motor is fixedly connected to the second winding wheel. A plurality of hooks are fixedly connected to the bottom of the third steel cable.

[0017] Preferably, a guide wheel is installed at the outer end of the movable seat. The second steel cable passes through the guide wheel and is guided downward by the guide wheel.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In this application, an optoelectronic speed sensor is designed to detect the state of the movable seat and cooperate with the active protection mechanism to detect abnormal displacement of the movable structure in the anti-falling guide rail. When abnormal displacement occurs in the anti-falling guide rail, the active protection mechanism works and performs an active locking action on the movable structure in the anti-falling guide rail. Then, in cooperation with the passive emergency mechanism, the passive emergency mechanism adopts a hierarchical braking strategy:

[0020] First-level braking: The second servo motor drives the first winding wheel to rotate quickly and wind the first steel cable to achieve preliminary anti-falling and braking of the movable seat.

[0021] Second-level braking: The hydropneumatic damper is activated to reduce the impact force generated when the movable seat drops.

[0022] Third-level braking: The airbag expands to absorb the impact energy between the movable seat and the guide rail in the anti-falling guide rail and protect the stable operation of the device.

[0023] In summary, the high-altitude anti-falling device for power transmission towers in this application has dual guarantees of active protection and passive emergency. Description of the Drawings

[0024] Figure 1Schematic three-dimensional structure diagram of an anti-falling device for high-altitude power transmission towers proposed by the present invention;

[0025] Figure 2 Front view of an anti-falling device for high-altitude power transmission towers proposed by the present invention;

[0026] Figure 3 Partial enlarged schematic diagram of the structure of an anti-falling device for high-altitude power transmission towers proposed by the present invention;

[0027] Figure 4 Explosion diagram of an anti-falling device for high-altitude power transmission towers proposed by the present invention;

[0028] Figure 5 Partial enlarged schematic diagram of the structure inside the guide rail of an anti-falling device for high-altitude power transmission towers proposed by the present invention;

[0029] Figure 6 Partial enlarged schematic diagram of the structure at the hydraulic damper of an anti-falling device for high-altitude power transmission towers proposed by the present invention Figure 1 ;

[0030] Figure 7 Partial enlarged schematic diagram of the structure at the hydraulic damper of an anti-falling device for high-altitude power transmission towers proposed by the present invention Figure 2 ;

[0031] Figure 8 Partial enlarged schematic diagram of the internal structure of the protective cover of an anti-falling device for high-altitude power transmission towers proposed by the present invention;

[0032] Figure 9 Partial enlarged schematic diagram of the internal structure of the housing of an anti-falling device for high-altitude power transmission towers proposed by the present invention.

[0033] In the figure: base 1, guide rail 2, controller 3, card slot 4, socket 5, movable seat 6, kit 7, fastening bolt 8, notch 9, friction wheel 10, connecting shaft 11, first bevel gear 12, protective cover 13, first servo motor 14, second bevel gear 15, first winding wheel 16, first steel cable 17, second servo motor 18, mounting bracket 19, pressing plate 20, electric push rod 21, photoelectric speed sensor 22, hydraulic damper 23, airbag 24, air chamber 25, air pipe 26, solenoid valve 27, second steel cable 28, guide wheel 29, housing 30, second winding wheel 31, third steel cable 32, stepper motor 33, hook 34. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] Referring to Figures 1 - 9 , a high-altitude anti-falling device for a power transmission tower, comprising a base 1. A driving mechanism is provided at the upper end of the base 1. The driving mechanism is sleeved on an external rod and a tower top member, and the driving mechanism can drive the base 1 to move along the external rod and the tower top member. Two symmetrically distributed guide rails 2 are fixedly installed at the bottom of the base 1. A controller 3 is fixedly installed between the two guide rails 2. Card slots 4 are formed on both sides inside the guide rails 2, and sockets 5 are formed outside the guide rails 2. The sockets 5 extend into the card slots 4. A movable seat 6 is slidably arranged inside the guide rails 2. The side of the movable seat 6 is slidably arranged in the card slots 4. A hoisting mechanism is installed on the movable seat 6, and the hoisting mechanism is used for hoisting operating personnel. An adjusting mechanism is arranged inside the guide rails 2. The adjusting mechanism is connected to the movable seat 6 and is used for adjusting the height of the movable seat 6. Active braking mechanisms are installed outside both guide rails 2. The active braking mechanisms pass through the sockets 5 and brake the movable seat 6. The controller 3 is used to control the operation of the active braking mechanisms.

[0037] Among them, the driving mechanism includes two symmetrically distributed sleeves 7. The two sleeves 7 can be sleeved on an external rod and a tower top member. The upper ends of the two sleeves 7 are detachably connected together by a plurality of fastening bolts 8. The bottom of the sleeve 7 is connected to the base 1 by screws. The driving mechanism further includes a notch 9. The notch 9 is formed outside the sleeve 7 and penetrates the sleeve 7. A friction wheel 10 is arranged inside the notch 9. A connecting shaft 11 is fixedly installed on the friction wheel 10. The upper end of the connecting shaft 11 extends to the top of the sleeve 7. A first bevel gear 12 is fixedly installed at the top of the connecting shaft 11. A protective cover 13 is fixedly installed outside the sleeve 7. A first servo motor 14 is fixedly installed inside the protective cover 13. A second bevel gear 15 is fixedly installed at the output shaft end of the first servo motor 14. The second bevel gear 15 meshes with the first bevel gear 12.

[0038] Among them, the adjusting mechanism includes a first winding wheel 16 rotatably installed at the upper end inside the guide rail 2. A first steel cable 17 is fixedly connected to the top of the movable seat 6. The upper end of the first steel cable 17 is fixedly connected inside the first winding wheel 16, and the first steel cable 17 is wound inside the first winding wheel 16. A second servo motor 18 is fixedly installed outside the guide rail 2. The output shaft of the second servo motor 18 penetrates the guide rail 2 and is fixedly connected to the first winding wheel 16. The second servo motor 18 is electrically connected to the controller 3. The controller 3 is used to control the operation of the second servo motor 18.

[0039] Among them, the active braking mechanism includes a mounting bracket 19, which is fixedly installed outside the guide rail 2. A pressing plate 20 is provided on the outer side of the guide rail 2. One end of the pressing plate 20 can pass through the socket 5 and contact the side of the movable seat 6. Anti-slip textures are provided on the contact surfaces of the pressing plate 20 and the movable seat 6. A plurality of electric push rods 21 are fixedly installed in the mounting bracket 19 at equal intervals up and down. The output ends of the electric push rods 21 are fixedly connected to the pressing plate 20. The electric push rods 21 are electrically connected to the controller 3, and the controller 3 is used to control the operation of the electric push rods 21. An optoelectronic speed sensor 22 is installed at the inner top of the guide rail 2, and the optoelectronic speed sensor 22 is arranged facing the movable seat 6. The optoelectronic speed sensor 22 is electrically connected to the controller 3.

[0040] For the installation schematic diagram of the device, reference can be made to Figure 1 As shown, by sleeving two kits 7 on the external rod and the top member of the tower and connecting them through fastening bolts 8, the two kits 7 can slide on the top member. By driving the friction wheel 10 in the notch 9 to rotate through the first servo motor 14, the friction wheel 10 contacts the top member of the tower. The first servo motor 14 operates and drives the second bevel gear 15 to rotate. The second bevel gear 15 drives the first bevel gear 12 to rotate, which can drive the connecting shaft 11 and the friction wheel 10 to rotate synchronously. The friction wheels 10 on both sides rotate in opposite directions. Thus, the device is driven to different positions of the top member of the tower, so as to perform electrical operations on different positions of the power transmission tower.

[0041] The height of the movable seat 6 in the guide rail 2 is finely adjusted through the adjustment mechanism, so as to finely adjust the working height of the staff. By driving the first winding wheel 16 to rotate through the second servo motor 18, the first steel cable 17 is wound or released, and the movable seat 6 can slide to different heights in the guide rail 2. The second servo motor 18 rotates at a low speed, and the moving speed of the movable seat 6 synchronously remains low. The optoelectronic speed sensor 22 monitors the moving speed of the movable seat 6 in real time and transmits the speed signal to the controller 3. The controller 3 makes an analysis and judgment. When it detects that the moving speed exceeds the preset value, the controller 3 controls a plurality of electric push rods 21 to work. The electric push rods 21 drive the pressing plate 20 to move towards the socket 5, so that the pressing plate 20 closely fits the side of the movable seat 6, and the movable seat 6 is braked through the friction force between the two and kept in a fixed state.

[0042] At the same time, the controller 3 controls the second servo motor 18 to work. The second servo motor 18 drives the first winding wheel 16 to rotate quickly and wind the first steel cable 17, realizing the preliminary anti-falling and braking of the movable seat 6.

[0043] Embodiment 2 proposed based on Embodiment 1:

[0044] Refer to Figures 5 - 9, two hydropneumatic dampers 23 are installed at the inner bottom of the guide rail 2 at intervals. A gasbag 24 is fixedly connected to the center of the inner bottom of the guide rail 2. An air chamber 25 is fixedly installed inside the guide rail 2. An air pipe 26 is connected and fixedly connected to the air chamber 25. One end of the air pipe 26 is connected to the gasbag 24. An electromagnetic valve 27 is installed on the air pipe 26. The air chamber 25 is filled with high-pressure gas. The electromagnetic valve 27 is electrically connected to the controller 3, and the controller 3 is used to control the electromagnetic valve 27 to work.

[0045] When the movable seat 6 is out of control and drops to the bottom end of the guide rail 2 inside the guide rail 2, the movable seat 6 contacts the hydropneumatic damper 23, and the hydropneumatic damper 23 is activated to reduce the impact force generated when the movable seat 6 drops. At the same time, when the movable seat 6 moves abnormally, the controller 3 is cooperated to control the electromagnetic valve 27 to open, and the high-pressure gas in the air chamber 25 is quickly injected into the gasbag 24 through the air pipe 26, further absorbing the impact energy between the movable seat 6 and the guide rail 2 inside the anti-fall guide rail.

[0046] Among them, the hoisting mechanism includes a second steel cable 28. The upper end of the second steel cable 28 is fixedly connected to the movable seat 6. It also includes a housing 30 arranged outside the guide rail 2. The housing 30 is fixedly connected to the bottom of the second steel cable 28. A second winding wheel 31 is rotatably installed inside the housing 30. A third steel cable 32 is fixedly connected and wound inside the second winding wheel 31. The third steel cable 32 passes through the housing 30. A stepping motor 33 is fixed on the housing 30. The output shaft of the stepping motor 33 is fixedly connected to the second winding wheel 31. A plurality of hooks 34 are fixedly connected to the bottom of the third steel cable 32. The hooks 34 are hung on the waistband of the operator. A guide wheel 29 is installed at the outer end of the movable seat 6. The second steel cable 28 passes through the guide wheel 29 and is downwardly guided by the guide wheel 29.

[0047] The operator is hoisted by the hoisting mechanism. Specifically, a plurality of hooks 34 are hung on the waistband of the operator. By driving the second winding wheel 31 to rotate through the stepping motor 33, the third steel cable 32 can be released and wound, so as to adjust the working length of the third steel cable 32. The operator moves synchronously with the bottom end of the third steel cable 32, and thus the height of the operator is adjusted.

[0048] In this application, the optoelectronic speed sensor 22 is designed to detect the state of the movable seat 6 and cooperate with the active protection mechanism to work, and detect the abnormal displacement of the movable structure inside the anti-fall guide rail. When an abnormal displacement occurs inside the anti-fall guide rail, the active protection mechanism works and performs an active locking action on the movable structure inside the anti-fall guide rail. Then, in cooperation with the passive emergency mechanism, the passive emergency mechanism adopts a hierarchical braking strategy:

[0049] First-level braking: The second servo motor 18 drives the first winding wheel 16 to rotate quickly and wind the first steel cable 17 to achieve the preliminary anti-fall and braking of the movable seat 6;

[0050] Secondary braking: The hydraulic damper 23 is activated to reduce the impact force generated when the movable seat 6 drops.

[0051] Tertiary braking: The airbag 24 expands to absorb the impact energy between the movable seat 6 and the guide rail 2 in the anti-falling guide rail, protecting the stable operation of the device.

[0052] In summary, the high-altitude anti-falling device for power transmission towers of the present application has dual guarantees of active protection and passive emergency.

[0053] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high-altitude anti-fall device for an electric power tower, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a driving mechanism, the driving mechanism is sleeved on the external rod and the tower top component, and the driving mechanism can drive the base (1) to move along the external rod and the tower top component; Two symmetrically distributed guide rails (2) are fixedly mounted at the bottom of the base (1); a controller (3) is fixedly mounted between the two guide rails (2); slots (4) are provided on both sides of the guide rails (2); a socket (5) is provided outside the guide rails (2); the socket (5) extends into the slots (4); a movable seat (6) is slidably mounted inside the guide rails (2); the movable seat (6) is slidably mounted laterally in the slots (4); a lifting mechanism is mounted on the movable seat (6); the lifting mechanism is used for lifting workers; an adjustment mechanism is provided inside the guide rails (2); the adjustment mechanism is connected to the movable seat (6) and is used for adjusting the height of the movable seat (6); an active braking mechanism is mounted outside the guide rails (2); the active braking mechanism passes through the socket (5) and brakes the movable seat (6); the controller (3) is used for controlling the operation of the active braking mechanism.

2. The high-altitude anti-fall device for electric power tower according to claim 1 is characterized in that: The driving mechanism comprises two symmetrically distributed sets (7), the two sets (7) can be sleeved on the external rod and the tower top component, the upper ends of the two sets (7) are detachably connected together by a plurality of fastening bolts (8), and the bottom of the sets (7) is connected to the base (1) by screws.

3. The high-altitude anti-fall device for electric power tower according to claim 2 is characterized in that: The driving mechanism further comprises a notch (9), wherein the notch (9) is formed outside the sleeve (7) and penetrates the sleeve (7), a friction wheel (10) is arranged inside the notch (9), a connecting shaft (11) is fixedly mounted on the friction wheel (10), an upper end of the connecting shaft (11) extends to the top of the sleeve (7), a first bevel gear (12) is fixedly mounted on the top of the connecting shaft (11), a protective cover (13) is fixedly mounted outside the sleeve (7), a first servo motor (14) is fixedly mounted inside the protective cover (13), a second bevel gear (15) is fixedly mounted on the output shaft end of the first servo motor (14), and the second bevel gear (15) is meshed with the first bevel gear (12).

4. The high-altitude anti-fall device for electric power tower according to claim 1 is characterized in that: The adjusting mechanism comprises a first winding wheel (16) rotatably mounted on the upper end of the guide rail (2); a first steel cable (17) is fixedly connected to the top of the movable seat (6); the upper end of the first steel cable (17) is fixedly connected to the first winding wheel (16), and the first steel cable (17) is wound in the first winding wheel (16); a second servo motor (18) is fixedly mounted outside the guide rail (2); an output shaft of the second servo motor (18) passes through the guide rail (2) and is fixedly connected to the first winding wheel (16).

5. The high-altitude anti-fall device for electric power tower according to claim 4 is characterized in that: The second servo motor (18) is electrically connected to the controller (3), and the controller (3) is used to control the operation of the second servo motor (18).

6. The high-altitude anti-fall device for electric power tower according to claim 1 is characterized in that: The active braking mechanism comprises a mounting frame (19), wherein the mounting frame (19) is fixedly mounted outside the guide rail (2), a pressure plate (20) is arranged outside the guide rail (2), one end of the pressure plate (20) can pass through the socket (5) and contact the side of the movable seat (6), and the contact surfaces of the pressure plate (20) and the movable seat (6) are both provided with anti-slip textures, and a plurality of electric push rods (21) equidistantly distributed up and down are fixedly mounted inside the mounting frame (19), and the output ends of the electric push rods (21) are fixedly connected to the pressure plate (20), and the electric push rods (21) are electrically connected to the controller (3), and the controller (3) is used to control the operation of the electric push rods (21).

7. The high-altitude anti-fall device for electric power tower according to claim 6 is characterized in that: A photoelectric speed sensor (22) is installed at the top of the guide rail (2). The photoelectric speed sensor (22) is arranged toward the movable seat (6). The photoelectric speed sensor (22) is electrically connected to the controller (3).

8. The high-altitude anti-fall device for electric power tower according to claim 7 is characterized in that: Two hydraulic dampers (23) are installed at intervals at the bottom of the guide rail (2); an air bag (24) is fixedly connected to the center of the bottom of the guide rail (2); an air chamber (25) is fixedly installed in the guide rail (2); an air pipe (26) is connected to and fixedly connected to the air chamber (25); one end of the air pipe (26) is connected to the air bag (24); an electromagnetic valve (27) is installed on the air pipe (26); the air chamber (25) is filled with high-pressure gas; the electromagnetic valve (27) is electrically connected to the controller (3); and the controller (3) is used to control the operation of the electromagnetic valve (27).

9. The high-altitude anti-fall device for electric power tower according to claim 1 is characterized in that: The lifting mechanism includes a second steel cable (28), the upper end of which is fixedly connected to a movable seat (6), and a shell (30) arranged on the outside of the guide rail (2), the shell (30) being fixedly connected to the bottom of the second steel cable (28), a second winding wheel (31) being rotatably mounted in the shell (30), a third steel cable (32) being fixedly connected and wound in the second winding wheel (31), the third steel cable (32) passing through the shell (30), a stepper motor (33) being fixed on the shell (30), an output shaft of the stepper motor (33) being fixedly connected to the second winding wheel (31), and a plurality of hooks (34) being fixedly connected to the bottom of the third steel cable (32).

10. The high-altitude anti-fall device for electric power tower according to claim 9, characterized in that: A guide wheel (29) is installed at the outer end of the movable seat (6), and the second steel cable (28) passes through the guide wheel (29) and is guided downward by the guide wheel (29).

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