A ladder speed erection device and speed erection method in high-voltage transmission line

Abstract

The application discloses a kind of in high-altitude power transmission line in flat ladder speed device and speed erection method.Device includes flat ladder, metal shell, flexible binding device, motor drive module, first locking hook, second locking hook, power supply and infrared remote control module.Flat ladder free end is equipped with end hook, and connecting end is fixed metal shell by flexible binding device;Motor drive module is built-in disc type motor, clutch brake and winding traction rope drum, and traction rope end is connected with second locking hook.When erecting, first, end hook is hung to high-voltage transmission tower, and second locking hook is hung on power transmission line, and motor reeling rope makes flat ladder automatically rotate to working angle, and then first locking hook is hung again.When disassembling, personnel is removed first, and first locking hook is disconnected, and motor reverses to make flat ladder fall back, and then second locking hook and end hook are disconnected in sequence.The application replaces artificial leveling with electric remote control, and improves erection efficiency and safety.

Description

Technical Field

[0001] This invention relates to the field of live-line working tools, specifically to a rapid ladder erection device and method for high-altitude power transmission lines. Background Technology

[0002] In live-line work on high-altitude power transmission lines, insulated ladders are essential auxiliary tools for workers to access the equipotential zone from the crossarm of the tower. Various insulated ladder designs exist in the prior art. For example, Chinese invention patent CN112398049B discloses a combined insulated ladder, which is composed of multiple detachable ladder units connected end-to-end. Each ladder unit includes insulated side beams on both sides and an insulated crossbeam connecting the two side beams. In use, an appropriate number of ladder units are assembled according to the working distance. One end of the ladder is attached to the power line, and the other end is fixed to another power line. The ladder is tilted, allowing workers to climb it or slide into the equipotential position using a stool, thus enabling live-line work.

[0003] However, the aforementioned existing technologies still have significant shortcomings in practical applications. In this solution, the erection angle of the ladder relies entirely on manual adjustment. Specifically, workers need to first lift the ladder from a horizontal or folded state to a roughly vertical position, and then, with the cooperation of multiple people or the laborious effort of a single person, slowly rotate it to the required working tilt angle, while precisely aligning the front hook with the connection point of the power transmission line. Because insulated ladders are usually made of high-strength insulating materials, and to meet the safety distance requirements for live-line work, the ladders are often quite long and heavy (up to tens of kilograms). Relying solely on manual labor to complete the lifting, rotating, and connection operations is not only extremely laborious, but also makes it difficult to achieve precise angle control. In actual operations, the ladder rotation angle often becomes too large or too small, requiring repeated lifting and lowering adjustments, which seriously affects the erection efficiency. Once an operational error occurs, the ladder may slip or fall, causing electric shock or falling object accidents. Therefore, it is evident that existing insulated ladders rely entirely on manual labor for angle adjustment, lacking power assistance and remote control methods, resulting in a time-consuming, labor-intensive, low-precision, and safety-hazardous erection process. Therefore, there is an urgent need for a quick-erection device that can automatically adjust the angle of the horizontal ladder, thereby improving the work efficiency, positioning accuracy and construction safety of the horizontal ladder erection for high-altitude power transmission lines. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a rapid ladder erection device and method for high-altitude power transmission lines. It has the advantages of automatic, stable, and rapid adjustment of the ladder angle through motor drive and infrared remote control, solving the problems of laborious erection process, low angle control accuracy, poor work efficiency, and safety hazards caused by the fact that existing insulated ladders rely entirely on manual angle adjustment.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: This invention provides a rapid ladder erection device for high-altitude power transmission lines, used to erect a ladder between a power transmission line and a high-voltage transmission tower. The device includes: a ladder having a free end and a connecting end, the free end of which is provided with a hook for attaching to the high-voltage transmission tower; a metal casing with a traction rope window; a flexible binding device for detachably fixing the metal casing to the connecting end of the ladder; a motor drive module installed within the metal casing, including a disc motor, a clutch brake, and a circular roller, with a traction rope wound around the circular roller; a second locking hook connected to the end of the traction rope for attaching to the power transmission line; a first locking hook hinged to the connecting end of the ladder via a connecting rod for attaching to the power transmission line; a power supply assembly for supplying power to the motor drive module; and an infrared remote control module for remotely controlling the motor drive module.

[0006] The disc motor output end is equipped with a U-shaped mounting base, the disc motor output shaft passes through the U-shaped mounting base and is coaxially connected to the clutch brake, the clutch brake output end is connected to a circular roller, and the circular roller is located inside the U-shaped mounting base.

[0007] The U-shaped mounting base has two cylindrical traction rope guide rails fixedly connected to it. The traction rope is pulled out from between the two traction rope guide rails, passes through the traction rope window, and extends to the outside of the metal shell to connect with the second locking hook.

[0008] The U-shaped mounting base has a connection hole at its bottom for mounting to a metal casing; the clutch brake is a normally closed structure, which releases the brake when energized and automatically locks when de-energized.

[0009] The metal casing is also provided with a ladder limit stop, an infrared signal receiving window and a motor maintenance window. There are two ladder limit stops, both of which are fixedly welded to the metal casing. The ladder limit stops are right-angled plates and abut against the corners of the ladder connection end.

[0010] The infrared remote control module includes an infrared transmitter, an infrared sensor, and a control unit. The infrared sensor is installed inside the infrared signal receiving window on the metal casing. The control unit is electrically connected to the infrared sensor, the motor drive module and the power supply assembly, and supports forward, reverse and emergency stop control of the disc motor.

[0011] The power supply component is a detachable lithium battery pack and is equipped with a display screen for displaying the current battery level. The metal casing is also provided with a battery limiting hole for displaying the battery level on the display screen.

[0012] The first locking hook and the second locking hook are both high-strength aluminum alloy self-locking hooks.

[0013] The flexible binding device includes a flexible binding strap and several limiting rings fixedly installed on the circumference of the metal shell. The limiting rings are used to thread the flexible binding strap to prevent the ladder from separating from the metal shell. The metal outer shell is made of high-strength aluminum alloy, and the traction rope and flexible binding strap are both made of nylon material.

[0014] In another aspect, the present invention provides a method for rapid erection of a horizontal ladder in an aerial power transmission line using the above-mentioned device, comprising the following steps: S1: Fix the metal shell of the quick-set-up-the-flat-ladder device to the connecting end of the flat ladder using a flexible binding device; S2: Hook the free end of the horizontal ladder onto the high-voltage transmission tower; S3: Connect the second locking hook at the end of the traction rope to the power transmission line; S4: Start the motor drive module via infrared remote control module, so that the disc motor rotates forward to wind up the traction rope, and the flat ladder rotates from the vertical state to the working angle around the free end hanging point of the flat ladder. S5: Connect the first locking hook to the power transmission line to complete the rapid construction of the ladder between the power transmission line and the high-voltage power transmission tower.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides a rapid ladder erection device and method for high-altitude power transmission lines, which has the following beneficial effects: This invention achieves rapid, electrically operated erection of a horizontal ladder between a high-voltage transmission tower and a power transmission line by pre-attaching the ladder's end hook to the free end of the ladder, fixing the metal casing to the ladder's connecting end, and attaching the second locking hook at the end of the traction rope to the power line. Then, an infrared remote control module remotely controls a disc motor to rotate forward and rewind the traction rope, automatically rotating the ladder to the working angle. Finally, the first locking hook is attached to the power line. This solution replaces the laborious manual lifting and rotating of the ladder with electric remote control, allowing operators to remotely level the ladder from a safe position, significantly reducing labor intensity and improving erection accuracy, efficiency, and operational safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the motor drive module in this invention; Figure 3 This is a schematic diagram of the internal structure of the metal outer shell in this invention; Figure 4 This is a connection diagram of the control unit in this invention; Figure 5 This is a diagram of the method for quickly erecting a flat ladder according to the present invention.

[0017] In the diagram: 1. Ladder; 101. Free end of ladder; 102. Connecting end of ladder; 103. Hook at the end of ladder; 2. Metal casing; 201. Traction rope window; 202. Ladder limit stop; 203. Infrared signal receiving window; 204. Motor inspection window; 205. Battery limit hole; 3. Flexible binding device; 301. Flexible binding strap; 302. Limiting ring; 4. Motor drive module; 401. Disc motor; 402. Clutch brake; 403. Circular roller; 404. Traction rope; 405. U-shaped mounting base; 406. Traction rope guide rail; 407. Connecting hole; 5. Second locking hook; 6. First locking hook; 601. Connecting rod; 7. Power supply assembly; 8. Infrared remote control module; 801. Infrared transmitter; 802. Infrared sensor; 803. Control unit; 9. Display screen. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Please see Figure 1-4 This invention provides a rapid ladder erection device for high-altitude power transmission lines, used to erect a ladder 1 between a high-voltage transmission tower and a transmission line. The device includes: a ladder 1 having a free end 101 and a connecting end 102; the free end 101 being equipped with a ladder end hook 103 for attaching to the high-voltage transmission tower; the ladder end hook 103 also having a spring-return anti-detachment tongue (not shown in the image); after attachment, the tongue automatically closes the hook opening to prevent detachment due to vibration or wind; a metal casing 2 with a traction rope window 201; and a flexible binding device. The following components are included: a mounting 3 for detachably fixing the metal casing 2 to the connecting end 102 of the ladder; a motor drive module 4, installed inside the metal casing 2, including a disc motor 401, a clutch brake 402, and a circular roller 403, on which a traction rope 404 is wound; a second locking hook 5, connected to the end of the traction rope 404, for attaching to the power transmission line; a first locking hook 6, hinged to the connecting end 102 of the ladder via a connecting rod 601, for attaching to the power transmission line; a power supply assembly 7 for supplying power to the motor drive module 4; and an infrared remote control module 8 for remotely controlling the motor drive module 4.

[0020] It should be noted that the connecting rod 601 is made of high-strength aluminum alloy and is Y-shaped, including a forked end and a straight end. A round shaft is welded to the forked end and rotates to connect to the flat ladder connecting end 102. The straight end is fixedly connected to the first locking hook 6, so that the first locking hook 6 can swing freely around the hinged round shaft, which makes it easy to push and hang the flat ladder 1 from the side to the power transmission line after it is rotated into place.

[0021] Furthermore, the straight end of the connecting rod can adopt a sleeve-type telescopic structure, which can achieve length adjustment through multi-stage locking. After locking, it forms a rigid whole with no relative sliding gap, ensuring load-bearing strength. The length adjustment operation must be completed on the ground. After adjustment and locking confirmation, it can be taken to the height with the device to avoid the safety risks of height adjustment.

[0022] In this embodiment, a U-shaped mounting base 405 is installed at the output end of the disc motor 401. The output shaft of the disc motor 401 passes through the U-shaped mounting base 405 and is coaxially connected to the clutch brake 402. The output end of the clutch brake 402 is connected to a circular roller 403, which is located inside the U-shaped mounting base 405.

[0023] It should be noted that the U-shaped mounting base 405 provides an integrated support structure for the motor, clutch brake 402 and circular roller 403, so that the three are arranged coaxially, which improves the fit strength while occupying little space, making it easier to disassemble and assemble the U-shaped mounting base 405 and making maintenance more convenient.

[0024] It should be further explained that the surface of the circular roller 403 is provided with a spiral rope groove and a fixing hole at one end. The starting end of the traction rope 404 is inserted into the fixing hole and locked with a clamping screw. At the same time, it is pre-wound 2 to 3 turns on the roller to prevent slippage during winding.

[0025] In this embodiment, two cylindrical traction rope guide rails 406 are fixedly connected to the U-shaped mounting base 405. The traction rope 404 is pulled out from between the two traction rope guide rails 406, passes through the traction rope window 201, and extends to the outside of the metal shell 2 to connect with the second locking hook 5.

[0026] It should be noted that the gap between the two traction rope guide rails 406 is slightly larger than the diameter of the traction rope 404, which can guide the traction rope 404 to extend in a constant direction, avoid the traction rope 404 from swaying or getting stuck during the winding and unwinding process, and at the same time reduce the friction between the traction rope 404 and the edge of the traction rope window 201 of the metal shell 2, thus extending the service life of the rope.

[0027] In this embodiment, the bottom of the U-shaped mounting base 405 is provided with a connection hole 407 for mounting with the metal housing 2; the clutch brake 402 is a normally closed structure, which releases the brake when energized and automatically locks when de-energized.

[0028] It should be noted that the U-shaped mounting base 405 is fixed to the metal housing 2 using bolts through the connecting hole 407, ensuring that the motor drive module 4 will not shift when the traction rope 404 is under force. The normally closed clutch brake 402 is designed so that the circular roller 403 is locked when not powered on, preventing the ladder 1 from falling accidentally due to gravity; when the motor needs to run, the clutch brake 402 is first powered on to release the brake, and the power is immediately cut off and locked after the motor stops rotating, achieving reliable locking of the angle of the ladder 1.

[0029] In this embodiment, the metal shell 2 is also provided with a ladder limiting stop 202, an infrared signal receiving window 203 and a motor maintenance window 204. There are two ladder limiting stops 202, both of which are fixedly welded to the metal shell 2. The ladder limiting stops 202 are right-angled plates and abut against the corners of the ladder connecting end 102.

[0030] It should be noted that the two right-angled plate-shaped ladder limit stops 202 respectively lock the two sides of the ladder connection end 102, playing a pre-positioning role before the flexible binding device 3 fixes the metal shell 2. After binding, they together with the flexible binding strap 301 form a double anti-rotation mechanism, effectively preventing the metal shell 2 from twisting or slipping relative to the ladder 1 when the traction rope 404 is wound up, and ensuring the stability of the tension direction of the traction rope 404.

[0031] In this embodiment, the infrared remote control module 8 includes an infrared transmitter 801, an infrared sensor 802, and a control unit 803. The infrared sensor 802 is installed inside the infrared signal receiving window 203 on the metal casing 2. The control unit 803 is electrically connected to the infrared sensor 802, the motor drive module 4, and the power supply component 7, respectively, and supports forward rotation, reverse rotation, and emergency stop control of the disc motor 401.

[0032] It should be noted that the aforementioned infrared transmitter 801 is an independent handheld remote control with a built-in battery and encoding buttons. It can send commands from a safe distance (usually within 10 meters). The infrared sensor 802 and the control unit 803 are both sealed inside the metal casing 2. The control unit 803 uses a microcontroller, whose input is connected to the infrared sensor 802, and whose output is connected to the disc motor 401, the clutch brake 402, and the power supply assembly 7. It is also connected to the display screen 9 on the power supply assembly 7 to read and display power information. When using it, the remote control must be pointed directly at the infrared signal receiving window 203 on the metal casing 2 without obstruction to ensure reliable signal transmission. In addition, the operator can send forward, reverse, and emergency stop commands through the remote control. The control unit 803 drives the motor and synchronously controls the on / off state of the clutch brake 402 based on the decoding results.

[0033] It should be further explained that the control unit 803 uses timing control for the disc motor 401 and the clutch brake 402: when starting, the clutch brake 402 is energized first (brake is released), and the motor is started after a delay of 0.1 to 0.3 seconds; when stopping, the motor power is cut off first, and the clutch brake 402 power is disconnected after a delay of 0.1 to 0.3 seconds, ensuring that the motor stops completely before the brake is restored, thus avoiding the impact caused by sudden locking.

[0034] In this embodiment, the power supply component 7 is a detachable lithium battery pack and is provided with a display screen 9 for displaying the current power level. The metal casing 2 is also provided with a battery limiting hole 205 for displaying the power level of the display screen 9.

[0035] It should be noted that the detachable design facilitates on-site battery replacement, avoiding disruptions to work continuity due to charging delays. Before operation, the battery level display 9 can be directly observed through the battery limiting hole 205 to quickly determine if the remaining power is sufficient for the current setup. The battery limiting hole 205 also serves a positioning function, preventing the battery pack from shifting within the metal casing 2 and causing poor contact.

[0036] In this embodiment, both the first locking hook 6 and the second locking hook 5 are high-strength aluminum alloy self-locking hooks.

[0037] It should be noted that the hook body of the self-locking hook is equipped with an anti-detachment tongue that can be elastically reset. When the power transmission line is hooked, the tongue is pressed and flips inward. After the line enters the bottom of the hook, the tongue automatically resets and abuts against the hook tip, forming a closed locking ring, thereby achieving anti-detachment self-locking. To unlock, the tongue needs to be manually pressed to open the hook opening.

[0038] It is particularly important to note that during the construction of the ladder 1, the second locking hook 5 bears the main traction force: when the disc motor 401 winds up the traction rope 404, the second locking hook 5, as the end fixing point of the traction rope 404, directly bears all the tension generated by the rotation of the ladder 1, and is the main force-bearing hook driving the ladder 1 to rotate from a vertical state to the working angle. The first locking hook 6, on the other hand, is only engaged with the power line after the ladder 1 has rotated to its position. Its function is to provide additional redundant fixation after the ladder 1's angle adjustment, serving as a safety precaution. Even if the traction rope 404 breaks accidentally or the second locking hook 5 becomes detached, the first locking hook 6 can still reliably restrain the ladder connection end 102 to the power line, preventing the ladder 1 from falling, thus achieving double safety protection.

[0039] In this embodiment, the flexible binding device 3 includes a flexible binding strap 301 and several limiting rings 302 fixedly installed on the circumference of the metal shell 2. The limiting rings 302 are used to thread the flexible binding strap 301 to prevent the ladder 1 from separating from the metal shell 2. The metal shell 2 is made of high-strength aluminum alloy, and the traction rope 404 and the flexible binding strap 301 are both made of nylon material.

[0040] It should be noted that the limiting rings 302 are typically located on the four sides of the metal casing 2. The flexible binding straps 301 pass through the limiting rings 302 in sequence and wrap around the ladder connecting end 102 in a cross shape before being tightened by a quick-tightening device, thus forming a uniform binding force. Nylon material has excellent insulation properties and appropriate tensile strength, meeting the safety requirements for live-line work, while also being flexible and easy to use for high-altitude binding operations.

[0041] It should be further explained that the outer surface of the metal shell 2 is coated with an insulating coating and is connected to the insulating ladder 1 by a flexible nylon strap 301, so it does not come into direct contact with the high-voltage line and meets the insulation requirements for live work as a whole.

[0042] Please see Figure 5 In another aspect, the present invention provides a method for rapid erection of a horizontal ladder in an aerial power transmission line using the above-mentioned device, comprising the following steps: S1: Fix the metal shell 2 of the quick-set-up-the-ladder device to the connecting end 102 of the ladder using the flexible binding device 3; S2: Hook 103 at the free end of the horizontal ladder 101 to the high-voltage transmission tower; S3: Connect the second locking hook 5 at the end of the traction rope 404 to the power transmission line; S4: Start the motor drive module 4 through the infrared remote control module 8, so that the disc motor 401 rotates forward to wind up the traction rope 404, and the flat ladder 1 rotates from the vertical state to the working angle around the hanging point of the free end 101 of the flat ladder. S5: Connect the first locking hook 6 to the power transmission line to complete the rapid construction of the horizontal ladder 1 between the power transmission line and the high-voltage power transmission tower.

[0043] It should be noted that after each splicing step is completed, the operator should gently pull the hook body with the insulated operating rod or visually check whether the anti-detachment tongue is completely closed. Only after confirming that the splicing is secure can the next step be carried out.

[0044] The present invention also provides a method for dismantling a quick-layout device for a high-altitude power transmission line using the above-mentioned apparatus, comprising the following steps: S6: The workers should first evacuate the horizontal ladder 1 and ensure that no one is on the horizontal ladder 1 before disconnecting the first locking hook 6 from the power transmission line; S7: Control the disc motor 401 to reverse through the infrared remote control module 8, and slowly release the traction rope 404 to make the flat ladder 1 fall back to the vertical state. S8: Disconnect the second locking hook 5 from the power transmission line, then remove the horizontal ladder end hook 103 from the high-voltage power transmission tower. After completing the high-altitude operation, return to the ground and finally release the flexible binding device 3. Separate the metal shell 2 from the horizontal ladder connection end 102 to complete the disassembly.

[0045] Working Principle: During operation, workers must first set up a backup safety track (such as installing a fall arrest safety rope or a temporary fall arrest track) to ensure personal safety during the subsequent erection of the horizontal ladder 1 and equipotential bonding work. After completing the backup protection, the metal shell 2 is fixed to the horizontal ladder connection end 102 using a flexible binding device 3, so that the horizontal ladder limit stop 202 locks the corner of the horizontal ladder 1. Then, the horizontal ladder end hook 103 of the free end 101 of the horizontal ladder is attached to the high-voltage transmission tower, and the second locking hook 5 at the end of the traction rope 404 is attached to the transmission line (this hook is the main force hook) to bear all the tension when the traction rope 404 is wound up. The worker holds the infrared transmitter 801 and presses the forward rotation button in a safe position. The control unit 803 first energizes the clutch brake 402 to release the brake, and then starts the disc motor 401 to rotate forward, driving the circular roller 403 to wind up the traction rope 404, so that the horizontal ladder 1 gradually rotates upward from a vertical state to the working angle around its free end attachment point. After releasing the button, the motor is powered off, the clutch brake 402 automatically engages, and the ladder 1 is locked at that angle. Finally, the first locking hook 6, which is hinged to the ladder connection end 102, is attached to the power line (this hook is a safety hook). Under normal conditions, it is not under force. Only when the traction rope 404 breaks unexpectedly or the second locking hook 5 disengages, the first locking hook 6 can immediately restrain the ladder connection end 102 to prevent the ladder 1 from falling, forming a double safety guarantee. If fine-tuning of the angle is required, it can be remotely reversed; in case of emergency, pressing the emergency stop button will cause the motor to stop instantly and the clutch brake 402 to engage. The entire erection process is electrically remotely controlled, replacing manual leveling and significantly improving efficiency, accuracy, and safety.

[0046] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A rapid ladder erection device for high-altitude power transmission lines, used to erect a ladder (1) between the power transmission line and the high-voltage transmission tower, characterized in that, include: A flat ladder (1) has a free end (101) and a connecting end (102). The free end (101) is provided with a hook (103) for attaching to a high-voltage transmission tower. Metal casing (2), on which a traction rope window (201) is provided; A flexible binding device (3) is used to detachably fix the metal shell (2) to the connecting end (102) of the ladder; The motor drive module (4) is installed inside the metal casing (2) and includes a disc motor (401), a clutch brake (402) and a circular roller (403), on which a traction rope (404) is wound. The second locking hook (5) is connected to the end of the traction rope (404) and is used to hook the power transmission line; The first locking hook (6) is hinged to the connecting end (102) of the flat ladder via a connecting rod (601) and is used to hang the power transmission line; Power supply component (7) for supplying power to motor drive module (4); Infrared remote control module (8) is used to remotely control motor drive module (4).

2. The apparatus according to claim 1, characterized in that, The output end of the disc motor (401) is equipped with a U-shaped mounting base (405). The output shaft of the disc motor (401) passes through the U-shaped mounting base (405) and is coaxially connected to the clutch brake (402). The output end of the clutch brake (402) is connected to a circular roller (403), which is located inside the U-shaped mounting base (405).

3. The apparatus according to claim 2, characterized in that, Two cylindrical traction rope guide rails (406) are fixedly connected to the U-shaped mounting base (405). The traction rope (404) is pulled out from between the two traction rope guide rails (406), passes through the traction rope window (201), and extends to the outside of the metal shell (2) to connect with the second locking hook (5).

4. The apparatus according to claim 3, characterized in that, The bottom of the U-shaped mounting base (405) is provided with a connection hole (407) for mounting with the metal shell (2); the clutch brake (402) is a normally closed structure, which releases the brake when energized and automatically locks when de-energized.

5. The apparatus according to claim 4, characterized in that, The metal shell (2) is also provided with a ladder limit stop (202), an infrared signal receiving window (203) and a motor maintenance window (204). There are two ladder limit stops (202) and they are both fixedly welded to the metal shell (2). The ladder limit stops (202) are right-angled plates and abut against the corner of the ladder connection end (102).

6. The apparatus according to claim 5, characterized in that, The infrared remote control module (8) includes an infrared transmitter (801), an infrared sensor (802), and a control unit (803); The infrared sensor (802) is installed inside the infrared signal receiving window (203) on the metal casing (2). The control unit (803) is electrically connected to the infrared sensor (802), the motor drive module (4) and the power supply assembly (7) respectively, and supports forward rotation, reverse rotation and emergency stop control of the disc motor (401).

7. The apparatus according to claim 6, characterized in that, The power supply assembly (7) is a detachable lithium battery pack and is provided with a display screen (9) for displaying the current power level. The metal casing (2) is also provided with a battery limiting hole (205) for displaying the power level of the display screen (9).

8. The apparatus according to claim 7, characterized in that, Both the first locking hook (6) and the second locking hook (5) are high-strength aluminum alloy self-locking hooks.

9. The apparatus according to claim 8, characterized in that, The flexible binding device (3) includes a flexible binding strap (301) and several limiting rings (302) fixedly installed on the circumference of the metal shell (2). The limiting rings (302) are used to thread the flexible binding strap (301) to prevent the flat ladder (1) from separating from the metal shell (2). The metal shell (2) is made of high-strength aluminum alloy, and the traction rope (404) and flexible binding strap (301) are both made of nylon material.

10. A method for rapid erection of a horizontal ladder in an aerial power transmission line using the device described in any one of claims 1-9, characterized in that, Includes the following steps: S1: Fix the metal shell (2) of the quick-set-up device to the connecting end (102) of the ladder using a flexible binding device (3); S2: Hook (103) at the end of the horizontal ladder (101) and attach it to the high-voltage transmission tower; S3: Connect the second locking hook (5) at the end of the traction rope (404) to the power transmission line; S4: Start the motor drive module (4) through the infrared remote control module (8) to make the disc motor (401) rotate forward and wind up the traction rope (404), and the flat ladder (1) rotates from the vertical state to the working angle around the hanging point of the free end (101) of the flat ladder. S5: Hook the first locking hook (6) onto the power transmission line to complete the rapid construction of the ladder (1) between the power transmission line and the high-voltage power transmission tower.

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