Intelligent following anti-falling device suitable for power transmission tower maintenance and using method of intelligent following anti-falling device

By designing intelligent follow-up anti-fall device, using motor drive, guide rail slider and differential technologies, the problems of traditional self-locking devices limiting the moving space and safety hazards are solved, and efficient and safe high-altitude maintenance is achieved.

CN119607451APending Publication Date: 2025-03-14STATE GRID HUBEI ELECTRIC POWER CO XIAOGAN POWER SUPPLY CO

Patent Information

Application Number
CN202310890143.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-07-20
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

When power maintenance workers are under high altitude maintenance, traditional self-locking devices limit their movement space, and frequent dragging of safety ropes to fix the bayonets poses safety hazards and physical energy consumption.

Method used

An intelligent follow-up and fall-proof device is designed, including motor drive components, guide rail slide components, differentials and sensor components, which can follow themselves when the position of the maintenance personnel changes, realize rapid disassembly and change, and ensure safety through the wire rope connection in the differential.

Benefits of technology

It improves the activity space and high-altitude maintenance efficiency of power maintenance staff, reduces physical consumption and safety hazards, and ensures the safety of construction personnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an intelligent following anti-falling device suitable for power transmission tower maintenance and a using method. The intelligent following anti-falling device comprises a motor driving part, a guide rail sliding block part, a differential mechanism and a sensor part. The invention has the following beneficial effects: an electric power overhaul worker does not need to continuously drag and move the safety rope fixing bayonet, and can automatically adjust whether to open the one-way self-locking function of the guide rail slide block according to the specific working state during overhaul; in addition, the limitation of the position of the self-locking device and the length of the safety rope on the activity space range of the electric power overhaul worker in high-altitude overhaul is further reduced, and the overhaul activity space is further expanded; in addition, the intelligent following anti-falling device effectively avoids distraction of the electric power maintainer due to frequent dragging of the safety rope fixing bayonet, and unnecessary physical power consumption of the electric power maintainer is reduced.
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Description

Technical Field

[0001] The present invention relates to an intelligent following anti-falling device, in particular to an intelligent following anti-falling device suitable for the maintenance of a power transmission tower and a use method, belonging to the technical field of anti-falling for the maintenance of a power transmission tower. Background Art

[0002] At present, with the continuous investment of my country's power industry in the construction of basic power facilities, my country's power transmission technology has reached the international leading level, and the length of transmission lines has ranked first in the world. my country has a vast territory, and power production and use are in different regions. A large number of high-voltage transmission lines are needed to realize the transportation of electricity, and many high-voltage towers in the world have been built. The stability and safety of the entire power system are inseparable from the daily inspection and maintenance of transmission towers and lines by power maintenance personnel.

[0003] At present, when power maintenance workers inspect and maintain power towers, traditional self-locking devices require power workers to constantly drag and move the safety rope to fix the clip to ensure the safety of high-altitude operations; and most traditional self-locking devices on the market have one-way self-locking mechanisms, so power maintenance workers can only drag and move in one direction when moving horizontally at high altitudes; in addition, the range of activities of power maintenance workers during high-altitude maintenance is limited by the position of the self-locking device and the length of the safety rope. The maintenance process is time-consuming and labor-intensive, and there are great safety hazards. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent following fall arrester suitable for the maintenance of power transmission towers in order to solve at least one of the above-mentioned technical problems. The fall arrester can automatically follow the tower maintenance personnel according to the position changes of the maintenance personnel when the tower maintenance personnel move in the horizontal direction, thereby ensuring the safety of the construction personnel. When the tower maintenance personnel climb in the vertical direction, the intelligent following fall arrester can be quickly disassembled and changed. The structure is compact and light, the efficiency of high-altitude maintenance is improved, and the physical loss of high-altitude tower maintenance personnel is reduced.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: an intelligent following anti-falling device suitable for power transmission tower maintenance, comprising a motor drive component, a guide rail slider component, a differential and a sensor component, wherein the guide rail slider component is arranged on a T-shaped aluminum alloy guide rail, the guide rail slider component is mounted with a motor drive component, the differential is connected to the lower end of the guide rail slider component, and the bottom end of the differential is connected to the sensor component, the lower end of the differential is connected to a wire rope, and the wire rope passes through the sensor component and is connected to a safety rope on the body of a power maintenance worker;

[0006] The guide rail slider component includes a guide rail slider, a polyurethane roller and a friction wheel. The guide rail slider is clamped on the T-shaped aluminum alloy guide rail. The friction wheel fixed sleeve is arranged on the shaft body of the friction wheel transmission shaft, and the friction wheel transmission shaft is rotatably connected to the guide rail slider. The polyurethane roller is rotatably connected to the guide rail slider, and the friction wheel is closely attached to the upper end surface of the T-shaped aluminum alloy guide rail, and the polyurethane roller is closely attached to the outer side surface of the T-shaped aluminum alloy guide rail.

[0007] The sensor components include a sensor fixing block, a waterproof and dustproof micro switch and a laser beam switch. The waterproof and dustproof micro switch and the laser beam switch are both installed on the sensor fixing block, and the waterproof and dustproof micro switch is located on the left and right sides of the laser beam switch.

[0008] As a further solution of the present invention: the motor driving component includes a synchronous belt, a synchronous pulley, a motor, and a motor bracket; the motor is installed on the upper part of the guide rail slider through the motor bracket, and the rotating shaft of the motor is fixedly connected coaxially with the synchronous pulley; the synchronous belt has built-in glass fiber.

[0009] As a further solution of the present invention: the guide rail slider component also includes a self-locking buckle fixing shaft, a spring latch, a welded steel plate and a self-locking buckle. The self-locking buckle is arranged on the outer side of the guide rail slider. The self-locking buckle is rotationally connected to the guide rail slider through the self-locking buckle fixing shaft. A spring is installed on the side wall of the self-locking buckle. A spring latch is inserted on one side of the guide rail slider at the connection part with the self-locking buckle, and a welding steel plate for clamping the spring latch is welded on the upper end surface of the guide rail slider.

[0010] As a further solution of the present invention: a hole retaining ring is sleeved on the through hole of the friction wheel transmission shaft through the guide rail slider, and a miniature bearing located at one end of the friction wheel is sleeved on the shaft body of the friction wheel transmission shaft.

[0011] As a further solution of the present invention: the bottom end of the guide rail slider is connected with a threaded cross pin.

[0012] As a further solution of the present invention: a control box is fixedly installed on the outer wall of the differential, and a control circuit board and a driving power supply are placed in the control box. The control circuit board is connected with the waterproof and dustproof micro switch and the laser beam switch for signal transmission. The driving power supply supplies power to the motor through the control circuit board, and the motor is a stepping motor.

[0013] As a further solution of the present invention: the waterproof and dustproof micro switch is fixedly connected to the sensor fixing block by the micro switch fixing screws, two groups of laser counter-beam switches are provided, each group of laser counter-beam switches is composed of a laser receiver and a laser transmitter, and the laser counter-beam switch is fixedly connected to the sensor fixing block by the laser counter-beam fixing screws.

[0014] As a further solution of the present invention: a U-shaped hole is provided inside the sensor fixing block.

[0015] A method for using an intelligent follow-up anti-falling device suitable for power transmission tower maintenance, the method comprising:

[0016] When climbing vertically: pull out the threaded cross pin between the guide rail slider component and the differential, disconnect the circuit connection between the power control board of the control box and the motor; the steel wire rope at the lower end of the differential is still connected to the safety rope on the power maintenance staff, and the differential is placed in the power maintenance staff's tool kit; when the spring latch is lifted and placed on the welded steel plate, the spring latch no longer plays the role of blocking the self-locking buckle. The spring installed on the side wall of the self-locking buckle can ensure that when the power maintenance staff climbs vertically for maintenance, the self-locking buckle can always maintain a one-way self-locking state under the action of the spring elastic force; the mass of the protruding part at the lower end of the guide rail slider component and the motor drive component can ensure that the guide rail slider moves vertically on the T-shaped aluminum alloy guide rail to a certain extent during vertical climbing, and the force on the left and right ends of the guide rail slider is balanced.

[0017] When moving horizontally: quickly rotate the threaded cross pin between the guide rail slider component and the differential, and quickly plug in the circuit connection between the power control board of the control box and the motor; the wire rope at the lower end of the differential is still connected to the safety rope on the power maintenance staff; disconnect the safety rope on the self-locking buckle and the power maintenance staff, and then use the wire rope connection inside the differential to ensure the safety of the power maintenance staff working at high altitude; put down the spring latch, the spring latch plays the role of blocking the self-locking buckle, the self-locking buckle is blocked by the spring latch, and the guide rail slider component is no longer in a one-way self-locking state; when the power maintenance staff moves to the bottom of the intelligent follow-up anti-fall device, the sensor component detects the change in the position of the wire rope, and the anti-fall device moves accordingly to always stay directly above the power maintenance staff to ensure the safety of high-altitude operations. The wire rope that ensures the safety of high-altitude power maintenance staff is retracted in the differential, and the power maintenance staff can move to a position of meters below the anti-fall device, and the spatial activity range of the power maintenance staff is further improved.

[0018] The beneficial effects of the present invention are:

[0019] 1) The power maintenance staff does not need to constantly drag the mobile safety rope to fix the bayonet, and the power maintenance staff can adjust whether to open the one-way self-locking function of the guide rail slider according to the specific working status during maintenance;

[0020] 2) The range of activities of power maintenance workers during high-altitude maintenance is further reduced by the position of the self-locking device and the length of the safety rope, and the maintenance activity space is further expanded;

[0021] 3) The intelligent follow-up anti-fall device effectively prevents power maintenance personnel from being distracted by frequently dragging the safety rope fixing bayonet, reducing unnecessary physical consumption of power maintenance personnel;

[0022] 4) The whole device is reasonably designed, ingeniously structured, stable, and compact, making it easy to carry, assemble, and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall installation structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the guide rail slider component of the present invention;

[0025] Figure 3 It is a vertical plane cross-sectional view of the guide rail slider component of the present invention;

[0026] Figure 4 It is a horizontal plane cross-sectional view of the guide rail slider component of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the sensor component of the present invention;

[0028] Figure 6 It is a half-section view and a partial section view of the sensor component of the present invention.

[0029] In the figure:

[0030] 1. Motor drive components, 101. Synchronous belt, 12. Synchronous pulley, 103. Motor, 104. Motor bracket;

[0031] 2. Guide rail slider components, 201. Guide rail slider, 202. Self-locking buckle fixed shaft, 203. Spring latch, 204. Welded steel plate, 205. Self-locking buckle, 206. Polyurethane roller, 207. Threaded cross pin, 208. Miniature bearing, 209. Circlip for hole, 210. Friction wheel transmission shaft, 211. Friction wheel;

[0032] 3. Differential, 301, wire rope;

[0033] 4. Control box;

[0034] 5. Sensor components, 501. Sensor fixing block, 502. Waterproof and dustproof micro switch, 503. Micro switch fixing screw, 504. Laser beam switch, 505. Laser beam fixing screw;

[0035] 6. T-shaped aluminum alloy guide rail. DETAILED DESCRIPTION

[0036] 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.

[0037] Embodiment 1

[0038] like Figures 1 to 5 As shown, an intelligent following anti-falling device suitable for power transmission tower maintenance includes a motor drive component 1, a guide rail slider component 2, a differential 3 and a sensor component 5. The guide rail slider component 2 is arranged on a T-shaped aluminum alloy guide rail 6, the motor drive component 1 is installed on the guide rail slider component 2, the differential 3 is connected to the lower end of the guide rail slider component 2, and the bottom end of the differential 3 is connected to the sensor component 5, the lower end of the differential 3 is connected to a wire rope 301, and the wire rope 301 passes through the sensor component 5 and is connected to the safety rope on the power maintenance staff;

[0039] The guide rail slider component 2 includes a guide rail slider 201, a polyurethane roller 206 and a friction wheel 211. The guide rail slider 201 is clamped on the T-shaped aluminum alloy guide rail 6. The friction wheel 211 is fixedly sleeved on the shaft body of the friction wheel transmission shaft 210, and the friction wheel transmission shaft 210 is rotatably connected to the guide rail slider 201. The polyurethane roller 206 is rotatably connected to the guide rail slider 201, and the friction wheel 211 is closely attached to the upper end surface of the T-shaped aluminum alloy guide rail 6, and the polyurethane roller 206 is closely attached to the outer side surface of the T-shaped aluminum alloy guide rail 6;

[0040] The sensor component 5 includes a sensor fixing block 501, a waterproof and dustproof micro switch 502 and a laser beam switch 504. The waterproof and dustproof micro switch 502 and the laser beam switch 504 are both installed on the sensor fixing block 501, and the waterproof and dustproof micro switch 502 is located on the left and right sides of the laser beam switch 504. The sensor fixing component 5 is installed and fixed at the lower end of the differential 3, and the steel wire rope 301 inside the differential 3 passes through the inside of the sensor component 5; when the steel wire rope 301 is in a vertical position and does not contact the waterproof and dustproof pressure micro switches 502 on the left and right sides or when the steel wire rope blocks the laser beam switch 504, the laser receiver cannot receive the laser emitted by the laser generator, and the control board receives the signal change to drive the motor, so that the intelligent following device as a whole follows the movement of the power maintenance staff.

[0041] Embodiment 2

[0042] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0043] The motor drive component 1 includes a synchronous belt 101, a synchronous pulley 102, a motor 103, and a motor bracket 104; the motor 103 is installed on the upper part of the guide rail slider 201 through the motor bracket 104, and the rotating shaft of the motor 103 is fixedly connected to the synchronous pulley 102 coaxially, and the synchronous pulley 102 is connected to the friction wheel transmission shaft 210 through the synchronous belt 101; the motor 103 drives the synchronous pulley 102 to drive the friction wheel transmission shaft 210, and the rotation of the friction wheel transmission shaft 210 drives the friction wheel 211 on its shaft to rotate, thereby driving the guide rail slider component 2 to move on the T-shaped aluminum alloy guide rail 6, and the guide rail slider component 2 is driven by the synchronous pulley 102, and the motor 103 is fixed above the guide rail slider component 2 to prevent the guide rail slider component 2 from interfering with the fixed side of the T-shaped aluminum alloy guide rail 6 when it moves on the T-shaped aluminum alloy guide rail 6;

[0044] The synchronous belt 101 has built-in glass fiber, which further increases the service life of the synchronous belt and further improves safety.

[0045] Embodiment 3

[0046] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0047] The guide rail slider component 2 also includes a self-locking buckle fixed shaft 202, a spring latch 203, a welded steel plate 204 and a self-locking buckle 205. The self-locking buckle 205 is arranged on the outer side of the guide rail slider 201. The self-locking buckle 205 is connected to the guide rail slider 201 through the self-locking buckle fixed shaft 202. The side wall of the self-locking buckle 205 is equipped with a spring. The guide rail slider 201 is provided with a spring latch 203 on one side of the connection part with the self-locking buckle 205, and the upper end surface of the guide rail slider 201 is welded with a welded steel plate 204 for clamping the spring latch 203. When the power maintenance staff lifts the spring latch 203 and places it on the welded steel plate 204, the spring latch 203 no longer plays the role of blocking the self-locking buckle 205. The self-locking buckle 205 is connected to the T-shaped aluminum alloy guide rail 6 under the action of the spring installed on the side wall. When subjected to the force of the power maintenance staff, the self-locking buckle 205 can always maintain a one-way self-locking state to ensure the safety of the personnel working at high altitude. After the differential 3 is disassembled, it is hung on the safety rope of the power staff. At this time, the one-way self-locking structure of the guide rail slider component is relied on to ensure the safety of the power staff in the vertical climbing direction. The moving speed and activity space of the high-altitude maintenance are improved, and the physical loss of the tower maintenance personnel who perform unnecessary high-altitude operations is reduced. The one-way self-locking structure in the guide rail slider component 2 is always in a silent state when the power maintenance staff moves in the horizontal direction; only when climbing vertically, the elastic pin 203 is manually pulled up, and the one-way self-locking structure in the guide rail slider 201 comes into play, and self-locking is achieved by the line contact between the self-locking buckle 205 and the T-shaped aluminum alloy guide rail 6.

[0048] A hole retaining ring 209 is provided at the through hole of the friction wheel transmission shaft 210 through the guide rail slider 201, and a micro bearing 208 located at one end of the friction wheel 211 is provided on the shaft body of the friction wheel transmission shaft 210. The hole retaining ring 209 can prevent the friction wheel transmission shaft 210 from axially oscillating during rotation, and the micro bearing 208 arranged between the side of the friction wheel 211 and the guide rail slider 201 can reduce the friction between the friction wheel 211 and the guide rail slider 201 when the friction wheel 211 rotates.

[0049] A threaded cross pin 207 is connected to the bottom end of the guide rail slider 201 to facilitate the docking and assembly of the differential 3 and the guide rail slider 201. When the tower maintenance personnel climb in the vertical direction, the intelligent following anti-fall device can be quickly disassembled and transformed. The differential 3 and the guide rail slider component 2 are connected by a threaded cross pin 207. Considering that the threaded cross pin 207 needs to ensure the safety of the power maintenance personnel and needs to bear force, 2 to 3 circles of coarse threads are set on one side below the guide rail slider 201 to prevent the threaded cross pin 207 from falling off axially.

[0050] Embodiment 4

[0051] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0052] A control box 4 is fixedly installed on the outer wall of the differential 3, and a control circuit board and a driving power supply are arranged in the control box 4. The control circuit board is connected to the waterproof and dustproof micro switch 502 and the laser shooting switch 504 for signal transmission. The driving power supply supplies power to the motor 103 through the control circuit board, and the motor 103 is a stepping motor. After the control board receives the change of the sensor signal, the control board outputs a signal to control the power supply to discharge and drive the stepping motor, so as to realize the forward or reverse rotation of the stepping motor, thereby realizing that when the power workers who are repairing the tower move in the horizontal direction, the fall arrester can change according to the position of the maintenance personnel, ensuring that the fall arrester always follows the power workers by itself, so that the fall arrester is always directly above the power workers, ensuring the safety of the construction personnel. The control circuit board and the power supply are fixedly installed in the control box 4 on the side of the differential 3, and lithium batteries are used for energy storage to provide electricity for a long time to meet the maintenance work of the transmission tower; the control board is a single-chip microcomputer, which is respectively connected to the motor 103 and the sensor for coordinated control of the entire device.

[0053] The waterproof and dustproof micro switch 502 is fixedly connected to the sensor fixing block 501 by the micro switch fixing screw 503. Two groups of laser beam switches 504 are provided. Each group of laser beam switches 504 is composed of a laser receiver and a laser transmitter. The laser beam switch 504 is fixedly connected to the sensor fixing block 501 by the laser beam fixing screw 505. The micro switch fixing screw 503 and the laser beam fixing screw 505 are used to install and fix the sensor switch respectively. Two different fixing screws are used not only to adapt the sensor switch, but also to avoid interference problems when the fixing screws are adjusted.

[0054] A U-shaped hole is provided inside the sensor fixing block 501 to facilitate fine adjustment of the position of the sensor during actual installation.

[0055] Embodiment 5

[0056] like Figure 6 As shown, an intelligent follow-up anti-falling device suitable for power transmission tower maintenance, the figure shows three possible positions of the wire rope 301 to ensure the safety of the power maintenance workers when the power maintenance workers perform maintenance work under the intelligent follow-up anti-falling device:

[0057] Position A: The power maintenance staff is in the space directly below the intelligent follow-up anti-fall device;

[0058] Position B: The power maintenance worker is in the space on the left side of the intelligent follow-up anti-fall device. The wire rope 301 is offset and blocks the laser beam switch 505 or touches the waterproof and dustproof micro switch 502. The control panel receives the signal change and controls the motor 103 to rotate, thereby realizing the movement of the anti-fall device to the left to realize the following function. When the wire rope 301 is in position A again, it stops moving.

[0059] Position C: The power maintenance worker is in the space on the right side of the intelligent following anti-fall device. The wire rope 301 is offset and blocks the laser beam switch 505 or touches the waterproof and dustproof micro switch 502. The control panel receives the signal change and controls the motor 103 to rotate, thereby moving the anti-fall device to the right to realize the following function. When the wire rope 301 is in position A again, it stops moving.

[0060] Embodiment 6

[0061] A method for using an intelligent follow-up anti-falling device suitable for power transmission tower maintenance, the method comprising:

[0062] When climbing vertically:

[0063] 1) Remove the threaded cross pin 207 between the guide rail slider component 2 and the differential 3, and disconnect the circuit connection between the power control board of the control box 4 and the motor 103;

[0064] 2) The steel wire rope 301 at the lower end of the differential 3 is still connected to the safety rope of the power maintenance worker, and the differential 3 is placed in the tool bag of the power maintenance worker;

[0065] 3) When the spring latch 203 is lifted and placed on the welding steel plate 204, the spring latch 203 no longer plays the role of blocking the self-locking buckle 205. The spring installed on the side wall of the self-locking buckle 205 can ensure that when the power maintenance staff climbs vertically for maintenance, the self-locking buckle 205 can always maintain a one-way self-locking state under the action of the spring elastic force;

[0066] 4) The mass of the protruding part at the lower end of the guide rail slider component 2 and the motor drive component 1 can ensure that the guide rail slider 201 moves vertically on the T-shaped aluminum alloy guide rail 6 to a certain extent during vertical climbing, and the left and right ends of the guide rail slider 201 are balanced.

[0067] When moving horizontally:

[0068] 1) Rapidly rotate and install the threaded cross pin 207 between the guide rail slider component 2 and the differential 3, and quickly plug the circuit connection between the power control board of the control box 4 and the motor 103;

[0069] 2) The steel wire rope 301 at the lower end of the differential 3 is still connected to the safety rope of the power maintenance staff; the connection between the safety rope on the self-locking buckle 205 and the power maintenance staff is disconnected, and the steel wire rope inside the differential 3 is used to ensure the safety of the power maintenance staff working at high altitude;

[0070] 3) The spring latch 203 is lowered, and the spring latch 203 plays a role in blocking the self-locking buckle 205. The self-locking buckle 205 is blocked by the spring latch 203, and the guide rail slider component 2 no longer maintains a one-way self-locking state;

[0071] 4) When the power maintenance worker moves to the bottom of the intelligent following anti-fall device, the sensor component 2 detects the change in the position of the wire rope 301, and the anti-fall device moves accordingly to always remain directly above the power maintenance worker to ensure the safety of high-altitude operations. The wire rope 301 that ensures the safety of high-altitude power maintenance workers is retracted in the differential 3, and the power maintenance worker can move to a position 10 meters below the anti-fall device, further improving the spatial activity range of the power maintenance worker.

[0072] Working process: When the power maintenance staff moves to the bottom of the intelligent following anti-fall device to perform maintenance work, the sensor component 2 detects the change in the position of the wire rope 301, and the anti-fall device moves accordingly to always remain directly above the power maintenance staff to ensure the safety of high-altitude operations. The wire rope 301 that ensures the safety of high-altitude power maintenance staff is elastically retracted in the differential 3, and the maximum distance that the power maintenance staff can move to is 10 meters below the anti-fall device; the spatial activity range of the power maintenance staff is further improved.

[0073] This technical solution has designed an intelligent following anti-fall device that can not only move horizontally with the position of the power workers on the T-shaped slide of the tower, but also can achieve rapid switching to meet the safety of the power maintenance workers when climbing vertically. The intelligent following anti-fall device can effectively prevent the power maintenance workers from being distracted by frequently dragging the safety rope fixing clips, thereby reducing unnecessary physical consumption of the power maintenance workers and reducing the risk of falling from heights.

[0074] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intelligent follow-up anti-falling device suitable for power transmission tower maintenance, comprising a motor drive component (1), a guide rail slider component (2), a differential (3) and a sensor component (5); characterized in that: The guide rail slider component (2) is arranged on a T-shaped aluminum alloy guide rail (6), a motor drive component (1) is installed on the guide rail slider component (2), the differential (3) is connected to the lower end of the guide rail slider component (2), and the bottom end of the differential (3) is connected to a sensor component (5), the lower end of the differential (3) is connected to a steel wire rope (301), and the steel wire rope (301) passes through the sensor component (5) and is connected to a safety rope on the body of an electric power maintenance worker; The guide rail slider component (2) comprises a guide rail slider (201), a polyurethane roller (206) and a friction wheel (211); the guide rail slider (201) is clamped on the T-shaped aluminum alloy guide rail (6); the friction wheel (211) is fixedly sleeved on the shaft of the friction wheel transmission shaft (210); the friction wheel transmission shaft (210) is rotatably connected to the guide rail slider (201); the polyurethane roller (206) is rotatably connected to the guide rail slider (201); the friction wheel (211) is closely attached to the upper end surface of the T-shaped aluminum alloy guide rail (6); and the polyurethane roller (206) is closely attached to the outer side surface of the T-shaped aluminum alloy guide rail (6); The sensor component (5) comprises a sensor fixing block (501), a waterproof and dustproof micro switch (502) and a laser beam switch (504); the waterproof and dustproof micro switch (502) and the laser beam switch (504) are both mounted on the sensor fixing block (501), and the waterproof and dustproof micro switch (502) is located on the left and right sides of the laser beam switch (504).

2. The intelligent following anti-falling device according to claim 1, characterized in that: The motor drive component (1) comprises a synchronous belt (101), a synchronous pulley (102), a motor (103), and a motor bracket (104); The motor (103) is mounted on the upper part of the guide rail slider (201) via a motor bracket (104); the rotating shaft of the motor (103) is fixedly connected coaxially with the synchronous pulley (102); the synchronous pulley (102) is connected to the friction wheel transmission shaft (210) via a synchronous belt (101); and the synchronous belt (101) has glass fiber embedded therein.

3. The intelligent following anti-falling device according to claim 1, characterized in that: The guide rail slider component (2) also includes a self-locking buckle fixing shaft (202), a spring latch (203), a welding steel plate (204) and a self-locking buckle (205); The self-locking buckle (205) is arranged on the outer side of the guide rail slider (201), and the self-locking buckle (205) is connected to the guide rail slider (201) in a rotational manner through a self-locking buckle fixing shaft (202). A spring is installed on the side wall of the self-locking buckle (205), and a spring latch (203) is inserted on one side of the guide rail slider (201) at a portion connected to the self-locking buckle (205), and a welding steel plate (204) for clamping the spring latch (203) is welded on the upper end surface of the guide rail slider (201).

4. The intelligent following anti-falling device according to claim 3, characterized in that: The friction wheel transmission shaft (210) is sleeved with a hole retaining ring (209) through the through hole opened by the guide rail slider (201), and the shaft body of the friction wheel transmission shaft (210) is sleeved with a miniature bearing (208) located at one end of the friction wheel (211).

5. The intelligent following anti-falling device according to claim 4, characterized in that: The bottom end of the guide rail slider (201) is connected with a threaded cross pin (207).

6. The intelligent following anti-falling device according to claim 1, characterized in that: A control box (4) is fixedly mounted on the outer wall of the differential (3), and a control circuit board and a drive power supply are arranged in the control box (4). The control circuit board is connected to a waterproof and dustproof micro switch (502) and a laser beam switch (504) for signal transmission. The drive power supply supplies power to a motor (103) through the control circuit board, and the motor (103) is a stepping motor.

7. The intelligent following anti-falling device according to claim 1, characterized in that: The waterproof and dustproof micro switch (502) is fixedly connected to the sensor fixing block (501) via a micro switch fixing screw (503); two groups of laser beam switches (504) are provided, each group of laser beam switches (504) is composed of a laser receiver and a laser transmitter; and the laser beam switches (504) are fixedly connected to the sensor fixing block (501) via a laser beam fixing screw (505).

8. The intelligent following anti-falling device according to claim 7, characterized in that: A U-shaped hole is provided inside the sensor fixing block (501).

9. A method for using the intelligent following anti-falling device for power transmission tower maintenance according to claim 1, characterized in that: The method of use includes: 1) When climbing vertically: Pull out the threaded cross pin (207) between the guide rail slider component (2) and the differential (3), and disconnect the circuit connection between the power control board of the control box (4) and the motor (103); The steel wire rope (301) at the lower end of the differential (3) is still connected to the safety rope of the power maintenance worker, and the differential (3) is placed in the tool bag of the power maintenance worker; When the spring latch (203) is lifted and placed on the welded steel plate (204), the spring latch (203) no longer plays the role of blocking the self-locking buckle (205), and the spring installed on the side wall of the self-locking buckle (205) can ensure that when the power maintenance staff climbs vertically for maintenance, the self-locking buckle (205) can always maintain a one-way self-locking state under the action of the spring elastic force; The mass of the protruding portion at the lower end of the guide rail slider component (2) and the motor drive component (1) can ensure that the guide rail slider (201) moves vertically on the T-shaped aluminum alloy guide rail (6) during vertical climbing, and the forces on the left and right ends of the guide rail slider (201) are balanced; 2) When moving horizontally: The threaded cross pin (207) is rotatably mounted between the guide rail slider component (2) and the differential (3), and the circuit connection between the power control board of the plug-in control box (4) and the motor (103); The steel wire rope (301) at the lower end of the differential (3) is still connected to the safety rope of the power maintenance staff; The connection between the safety rope on the self-locking buckle (205) and the power maintenance personnel is disconnected, and the steel wire rope inside the differential (3) is used to ensure the safety of the power maintenance personnel working at height; The spring latch (203) is lowered, and the spring latch (203) plays a role in blocking the self-locking buckle (205). The self-locking buckle (205) is blocked by the spring latch (203), and the guide rail slider component (2) no longer maintains a one-way self-locking state; When the power maintenance worker moves below the intelligent follow-up anti-fall device, the sensor component (2) detects the change in the position of the steel wire rope (301), and the anti-fall device moves accordingly to always remain directly above the power maintenance worker to ensure the safety of high-altitude operations. The steel wire rope (301) that ensures the safety of the high-altitude power maintenance worker is retracted and extended in the differential (3).

Citation Information

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