A maintenance device for communication tower cable feeders

Abstract

A kind of overhaul device for communication tower cable feeder, it is characterized in that, including: ground part, pole climbing mechanism, turnover mechanism, dismounting and connecting mechanism and signal receiving mechanism;The device is divided into ground part and upper moving part two parts, and upper moving part is divided into pole climbing mechanism, turnover mechanism, dismounting and connecting mechanism and signal receiving mechanism, ground part carries upper moving part and moves to the communication tower to be detected, carries out the butt joint of signal transmitter and lower end of feeder, upper moving part can be moved to the upper end of communication tower, carries out the butt joint of signal receiver and upper end of feeder, after butt joint is completed, detection is carried out, the device avoids the dangerousness of artificial climbing, and operation is simple and fast, improves work efficiency, saves manpower and material resources.

Description

Technical Field

[0001] This invention relates to the field of communication tower cable feeder maintenance, and particularly to a maintenance device for communication tower cable feeders. Background Technology

[0002] The antenna feeder system of a base station refers to the system in which the base station (BTS) transmits electromagnetic waves carrying information through the feeder to the antenna, and then propagates them out through the antenna. In the information transmission system between base stations, the antenna plays the role of converting the electromagnetic waves transmitted in the feeder into electromagnetic waves propagating in free space, or vice versa. In mobile communication network quality, the reliability of the antenna feeder system accounts for 30%-50% of the overall reliability of the base station system. Leaky cables and the performance of the antenna feeder system have a significant impact on the safe operation of the communication network; therefore, timely inspection of the feeder is essential. To address this, patent number CN104659462A discloses a water-proof device for antenna feeder connectors, comprising an antenna feeder connector protection box body and an umbrella-shaped cover plate with an opening at the top. The umbrella-shaped cover plate covers the antenna feeder connector protection box body, and the size of the opening at the top of the umbrella-shaped cover plate is the same as the diameter of the antenna feeder. The height of the umbrella-shaped cover plate is greater than the height of the antenna feeder connector protection box body. This invention's water-proof device for antenna feeder connectors, by using an umbrella-shaped cover plate with an opening at the top to cover the antenna feeder connector protection box body and with the opening at the top of the umbrella-shaped cover plate fitting over the antenna feeder, greatly improves the water-proof performance of the device, effectively reduces the failure rate of the antenna feeder system, significantly reduces maintenance work, improves the communication success rate of the antenna feeder system, and reduces operation and maintenance costs. Furthermore, this invention's water-proof device for antenna feeder connectors is characterized by its simple structure and low cost. However, although this invention is waterproof, it cannot effectively test the feeder. Therefore, we need to invent a maintenance device for communication tower cable feeders to effectively inspect the feeders. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a maintenance device for communication tower cable feeders. The device consists of two parts: a ground section and an upward section. The upward section is further divided into a climbing mechanism, a flipping mechanism, a disassembly and docking mechanism, and a signal receiving mechanism. The ground section carries the equipment to the communication tower to be inspected, where the signal transmitter is docked with the lower end of the feeder. The upward section moves to the top of the communication tower to dock the signal receiver with the upper end of the feeder. After docking, inspection is performed. This device avoids the dangers of manual climbing, is simple and quick to operate, improves work efficiency, and saves manpower and resources.

[0004] A maintenance device for communication tower cable feeders includes: a ground section, a pole climbing mechanism, a flipping mechanism, a disassembly and docking mechanism, and a signal receiving mechanism; This device is divided into a ground section and an upward section. The upward section is further divided into a climbing mechanism, a flipping mechanism, a disassembly and docking mechanism, and a signal receiving mechanism. The ground section includes a base plate, casters, supporting hollow columns, a signal transmitter, and a threaded interface A. Four casters are fixed to the bottom of the base plate, and four supporting hollow columns and a signal transmitter are fixed to the top of the base plate. A threaded interface A is fixed to the top of the signal transmitter. The ground section contacts the ground through the casters. The signal receiving mechanism is fixed to the upper rear side of the outer shell of the climbing mechanism. A flipping mechanism is also fixed to the rear side of the outer shell. The disassembly and docking mechanism is fixed to the L-shaped bracket in the flipping mechanism. Four columns are set at the bottom of the outer shell, and the four columns cooperate with the four supporting hollow columns respectively. When not in use, the four columns will be inserted into the four supporting hollow columns.

[0005] Furthermore, the climbing mechanism includes: a housing, an electric cylinder A, an arc-shaped bracket A, a climbing wheel, a motor A, a spring, a fixed bracket, an electric cylinder B, a motor B, a cam, a limiting rod, a climbing wheel frame, and a round rod; Inside the outer casing, there is an electric cylinder A fixed on each of the two sides. Each electric cylinder A has an arc-shaped bracket A fixed at its front end. The middle of the arc-shaped bracket A is fixed to a fixed bracket. The arc-shaped bracket A has four sliding grooves, and a climbing wheel frame is slidably installed in each groove. Each climbing wheel frame has a climbing wheel, and the climbing wheel frames and climbing wheels are connected by springs. Every two climbing wheels form a group, and each arc-shaped bracket A has two groups. A motor A is fixed to the upper climbing wheel in each group. The two climbing wheels in each group are connected by a belt. The two climbing wheel frames corresponding to the two climbing wheels in each group are fixed together by a round rod. The top of the round rod is slightly exposed, and the exposed part is slidably installed in the groove of a limiting rod. The middle of the limiting rod is fixed to a cam, which is located at the top of the arc-shaped bracket A. The motor B is fixed to the arc-shaped bracket A. The bottom of the fixed bracket has an electric cylinder B fixed, which passes through the arc-shaped bracket A, and a push plate is provided at its front end.

[0006] Furthermore, the climbing wheel is made of natural rubber.

[0007] Furthermore, the flipping mechanism includes: a bracket A, a grooved plate, a motor C, a connecting rod A, a connecting rod B, a moving rod, an L-shaped bracket, and a slider; the bracket A is fixed to the rear side of the outer casing, the grooved plate is fixed together with the bracket A, the grooved plate is divided into upper and lower parts, the upper part is provided with a groove, the lower part is fixed with the motor C, the motor C is fixed together with one end of the connecting rod A, the other end of the connecting rod A is hinged to one end of the connecting rod B, the other end of the connecting rod B is hinged to the moving rod, an L-shaped bracket is rotatably installed in the horizontal tube at the top of the moving rod, the L-shaped bracket is fixed together with the slider, and the slider is slidably installed in the groove at the upper part of the grooved plate.

[0008] Furthermore, the disassembly and assembly docking mechanism includes: a lead screw and slider assembly, an electric cylinder C, a telescopic bracket, a clamp, a motor D, an arc-shaped bracket B, an arc-shaped rack, a wrench, a nut A, and an electric cylinder D; The lead screw and slider assembly is fixed on an L-shaped bracket. An electric cylinder C and a telescopic bracket are fixed on the slider of the lead screw and slider assembly. The electric cylinder C and the telescopic bracket are both fixed to the end of the clamp. The end of the clamp is also fixed with a motor D and an arc-shaped bracket B. An arc-shaped rack is slidably installed in the groove of the arc-shaped bracket B. The gear on the motor shaft of the motor D meshes with the arc-shaped rack. An electric cylinder D is fixed below the arc-shaped rack. A wrench is fixed to the end of the electric cylinder D. The nut A is set at the bottom connection of the feeder.

[0009] Furthermore, the signal receiving mechanism includes: a bracket B, a signal receiver, a rack B, a threaded interface B, and a nut B; The bracket B is fixed to the upper rear side of the housing. A signal receiver is fixed to the top of the bracket B. The lower part of the signal receiver is fixed to the threaded interface B. The nut B is set at the top connection of the feeder.

[0010] Because the present invention adopts the above-described technical solution, the present invention has the following advantages: (1) This device is divided into a ground part and an upper part. Normally, the upper part is connected to the ground part. The ground part is equipped with four casters. When it is needed, the ground part can be manually pushed to move the upper part to the communication tower to be tested, so as to connect the signal transmitter with the feeder. This avoids the need for vehicle transportation and handling, and greatly saves costs. (2) The upward movement part is divided into a climbing mechanism, a flipping mechanism, a disassembly and assembly docking mechanism and a signal receiving mechanism. After the signal transmitter is docked with the lower end of the feeder, the climbing mechanism carries the flipping mechanism, the disassembly and assembly docking mechanism and the signal receiving mechanism to the upper end of the communication tower. After reaching the top, the flipping mechanism and the disassembly and assembly docking mechanism dock the signal receiver with the upper end of the feeder. After docking, the test is carried out, which avoids the danger of manual climbing, and the operation is simple and quick, which improves work efficiency and saves manpower and material resources. Attached Figure Description

[0011] Figure 1-2 This is a schematic diagram of the overall structure of the present invention.

[0012] Figure 3 This is a schematic diagram of the ground portion of the present invention.

[0013] Figure 4-6 This is a schematic diagram of the climbing mechanism of the present invention.

[0014] Figure 7 This is a schematic diagram of the flipping mechanism of the present invention.

[0015] Figure 8 This is a schematic diagram of the disassembly and assembly docking mechanism of the present invention.

[0016] Figure 9 This is a schematic diagram of the signal receiving mechanism of the present invention.

[0017] Figure 10 This is a schematic diagram showing the connection between the outer shell and bracket A and bracket B of the present invention.

[0018] Reference numerals: 1-Ground part; 2-Climbing mechanism; 3-Tilting mechanism; 4-Disassembly and docking mechanism; 5-Signal receiving mechanism; 101-Base plate; 102-Universal casters; 103-Supporting hollow column; 104-Signal transmitter; 105-Threaded interface A; 201-Housing shell; 202-Electric cylinder A; 203-Arc-shaped bracket A; 204-Climbing wheel; 205-Motor A; 206-Spring; 207-Fixed bracket; 208-Electric cylinder B; 209-Motor B; 210-Cam; 211-Limiting rod; 212-Climbing wheel frame; 21 3-Round rod; 301-Bracket A; 302-Groove plate; 303-Motor C; 304-Connecting rod A; 305-Connecting rod B; 306-Moving rod; 307-L-shaped bracket; 308-Slider; 401-Screw-slider assembly; 402-Electric cylinder C; 403-Telescopic bracket; 404-Clamp; 405-Motor D; 406-Arc-shaped bracket B; 407-Arc-shaped rack; 408-Wrench; 409-Nut A; 410-Electric cylinder D; 501-Bracket B; 502-Signal receiver; 503-Threaded interface B; 504-Nut B. Detailed Implementation

[0019] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; however, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Examples, such as Figure 1-10 As shown, a maintenance device for communication tower cable feeders includes: a ground part 1, a climbing mechanism 2, a flipping mechanism 3, a disassembly and docking mechanism 4, and a signal receiving mechanism 5. This device is divided into a ground section 1 and an upper section. The upper section is further divided into a climbing mechanism 2, a flipping mechanism 3, a disassembly and docking mechanism 4, and a signal receiving mechanism 5. The ground section 1 includes: a base plate 101, casters 102, supporting hollow columns 103, a signal transmitter 104, and a threaded interface A105. Four casters 102 are fixed to the bottom of the base plate 101, and four supporting hollow columns 103 and a signal transmitter 104 are fixed to the top of the base plate 101. The top of the signal transmitter 104 is fixed... There is a threaded interface A105; the ground part 1 contacts the ground through the caster wheel 102; a signal receiving mechanism 5 is fixedly installed on the upper rear side of the outer shell 201 in the climbing mechanism 2; a flipping mechanism 3 is also fixed on the rear side of the outer shell 201; the disassembly and docking mechanism 4 is fixed on the L-shaped bracket 307 in the flipping mechanism 3; four columns are set at the bottom of the outer shell 201; the four columns are respectively engaged with four supporting hollow columns 103; when not in use, the four columns will be inserted into the four supporting hollow columns 103. When this device is needed, the ground part 1 is first manually pushed to move. At this time, the four columns under the outer casing 201 will be inserted into the four supporting hollow columns 103, which will drive the upward part to move. When it moves to the designated position, the brake of the universal wheel 102 is stepped on to fix the ground part 1. Then the disassembly and docking mechanism 4 will dock the lower feeder connector with the signal transmitter 104. After the above actions are completed, the climbing mechanism 2 will drive the flipping mechanism 3, the disassembly and docking mechanism 4 and the signal receiving mechanism 5 to climb up the pipe. When it reaches the top, the flipping mechanism 3 will drive the disassembly and docking mechanism 4 to flip. Then the flipped disassembly and docking mechanism 4 will connect the upper feeder connector with the signal receiving mechanism 5. After the upper and lower feeders are connected, the feeder can be checked for damage.

[0021] In one optional embodiment of the present invention, such as Figure 4-6 As shown, the pole climbing mechanism 2 includes: a housing 201, an electric cylinder A202, an arc-shaped bracket A203, a pole climbing wheel 204, a motor A205, a spring 206, a fixed bracket 207, an electric cylinder B208, a motor B209, a cam 210, a limiting rod 211, a pole climbing wheel frame 212, and a round rod 213; Inside the outer casing 201, on each of the two sides, there is an electric cylinder A202. At the front end of each electric cylinder A202, there is an arc-shaped bracket A203. The middle of the arc-shaped bracket A203 is fixed to a fixed bracket 207. The arc-shaped bracket A203 has four sliding grooves, and a climbing pole wheel frame 212 is slidably installed in each groove. Each climbing pole wheel frame 212 has a climbing pole wheel 204. The climbing pole wheel frame 212 and the climbing pole wheel 204 are connected by a spring. Every two climbing pole wheels 204 form a group, and each arc-shaped bracket A203 has two groups. In each group, a motor A205 is fixed to the upper climbing pole wheel 204. The two climbing wheels 204 in each group are connected by a belt. The two climbing wheel frames 212 corresponding to the two climbing wheels 204 in each group are fixed together by a round rod 213. The top of the round rod 213 is slightly exposed, and the exposed part is slidably installed in the groove of the limiting rod 211. The middle position of the limiting rod 211 is fixedly installed on the cam 210. The cam 210 is set on the top of the arc bracket A203. The cam 210 is fixed on the motor shaft of the motor B209. The motor B209 is fixed on the arc bracket A203. The bottom of the fixed bracket 207 is fixed with an electric cylinder B208. The electric cylinder B208 passes through the arc bracket A203 and has a push plate at the front end. In the initial position, the four pillars at the bottom of the outer casing 201 are inserted into the four supporting hollow pillars 103, placing the upper part on the ground part 1. When it is necessary to connect the feeder connector at the top of the communication tower to the signal receiver 502 in the signal receiving mechanism, the upper part needs to be moved to the top of the communication tower. At this time, the two electric cylinders A202 operate, pushing the two arc-shaped brackets A203 to engage with the outer perimeter of the communication tower. At this point, the climbing wheel 204 contacts the communication tower. Then, the motor A205 starts, driving the climbing wheel 204 to rotate, and the climbing wheel 204 drives the upper part to rotate. When the moving part moves upward, if an obstacle is encountered during the movement, and the position of the climbing wheel 204 needs to be adjusted, the electric cylinder B208 extends, and the push plate at the piston rod end of the electric cylinder B208 presses against the communication tower pole. Then, the motor B209 starts, and the cam 210 driven by the motor B209 rotates. The cam 210 drives the limiting rod 211 to move, and the limiting rod 211 drives the climbing wheel frame 212 and the round rod 213 to move to the appropriate position to adjust the position of the climbing wheel 204. The climbing wheel 204 is made of rubber, which is not easy to scratch the wall of the communication tower.

[0022] In one optional embodiment of the present invention, such as Figure 7 As shown, the flipping mechanism 3 includes: bracket A301, groove plate 302, motor C303, connecting rod A304, connecting rod B305, moving rod 306, L-shaped bracket 307, and slider 308; The bracket A301 is fixed to the rear side of the outer shell 201. The groove plate 302 is fixed together with the bracket A301. The groove plate 302 is divided into upper and lower parts. The upper part is provided with a groove, and the lower part is fixed with a motor C303. The motor C303 is fixed together with one end of the connecting rod A304. The other end of the connecting rod A304 is hinged to one end of the connecting rod B305. The other end of the connecting rod B305 is hinged to the moving rod 306. An L-shaped bracket 307 is rotatably installed in the horizontal tube at the top of the moving rod 306. The L-shaped bracket 307 is fixed together with the slider 308. The slider 301 is slidably installed in the groove at the upper part of the groove plate 302. When the upper part moves to the top of the communication tower, the upper feeder connector needs to be disassembled and connected to the signal receiver 502. At this time, the disassembly and docking mechanism 3 needs to be flipped up and down. When flipping, the motor C303 starts, drives the connecting rod A304 to rotate, drives the connecting rod B305 to rotate, thereby driving the moving rod 306 to move up and down. The moving rod 306 drives the slider 308 to move and flip in the groove on the groove plate 302, thereby driving the L-shaped bracket 307 to move and flip, realizing the up and down movement and flipping of the disassembly and docking mechanism 3.

[0023] In one optional embodiment of the present invention, such as Figure 8 As shown, the disassembly and assembly docking mechanism 4 includes: a lead screw and slider assembly 401, an electric cylinder C402, a telescopic bracket 403, a clamp 404, a motor D405, an arc-shaped bracket B406, an arc-shaped rack 407, a wrench 408, a nut A409, and an electric cylinder D410. The lead screw and slider assembly 401 is fixed on the L-shaped bracket 307. The lead screw and slider assembly 401 has an electric cylinder C402 and a telescopic bracket 403 fixed on the slider. The electric cylinder C402 and the telescopic bracket 403 are both fixed to the end of the clamp 404. The end of the clamp 404 is also fixed with a motor D405 and an arc-shaped bracket B406. An arc-shaped rack 407 is slidably installed in the groove of the arc-shaped bracket B406. The gear on the motor shaft of the motor D405 meshes with the arc-shaped rack 407. The electric cylinder D410 is fixed below the arc-shaped rack 407. A wrench 408 is fixed to the end of the electric cylinder D410. The nut A409 is set at the bottom connection of the feeder. When disconnecting and connecting the lower feeder, firstly, the lead screw slider assembly 401 operates, moving the clamp 404 to the feeder and clamping it. At this time, the wrench 408 is locked on the outside of the nut A409. Then, the motor D405 starts, causing the wrench 408 to rotate a short distance, loosening the nut A409 slightly. Next, the electric cylinder D410 retracts, moving the wrench 408 upwards, freeing it from the constraint of the nut A409. Then, the arc-shaped rack 407 rotates in the opposite direction, causing the wrench 408 to return to its original position. Finally, the electric cylinder D410 extends, moving the wrench 408 back to its original position. The new clip is placed on the outside of nut A409. Tighten nut A409 again, repeating this process until nut A409 is completely unscrewed. Then, electric cylinder C402 retracts, driving clamp 404 to move upward. Clamp 404 moves upward a distance while holding the feeder cable, disengaging the feeder cable connector from the lower interface of the communication tower. Then, lead screw slider assembly 401 drives clamp 404 to move, moving the feeder cable connector to the threaded interface A105. Clamp 404 then mates the feeder cable connector with the threaded interface A105 and tightens nut A409 onto the threaded interface A105.

[0024] In one optional embodiment of the present invention, such as Figure 9 As shown, the signal receiving mechanism 5 includes: a bracket B501, a signal receiver 502, a rack B403, a threaded interface B504, and a nut B505; The bracket B501 is fixed on the upper rear side of the housing 201. The signal receiver 502 is fixed on the top of the bracket B501. The lower part of the signal receiver 502 is fixed together with the threaded interface B504. The nut B505 is set at the top connection of the feeder. After the feeder cable is connected at the lower end, the climbing mechanism 2 drives the signal receiving mechanism 5 to climb to the top. The connection between the feeder cable upper connector and the threaded interface B504 is the same as the connection between the feeder cable connector and the threaded interface A105. After the feeder cable upper connector is connected, the signal transmitter 104 transmits a signal. If the signal received by the signal receiver 502 is basically the same as the signal transmitted by the signal transmitter 104, it proves that the feeder cable being tested is undamaged. If the signal strength received by the signal receiver 502 differs significantly from the signal transmitted by the signal transmitter 104, it proves that the feeder cable being tested is damaged, and the next step of feeder cable repair or replacement is required.

[0025] It should be noted that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

Claims

1. A maintenance device for communication tower cable feeders, characterized in that, include: Ground part (1), climbing mechanism (2), flipping mechanism (3), disassembly and docking mechanism (4) and signal receiving mechanism (5); The disassembly and assembly mechanism (4) includes: a lead screw and slider assembly (401), an electric cylinder C (402), a telescopic bracket (403), a clamp (404), a motor D (405), an arc-shaped bracket B (406), an arc-shaped rack (407), a wrench (408), a nut A (409), and an electric cylinder D (410); the lead screw and slider assembly (401) is fixed on an L-shaped bracket (307), and the electric cylinder C (402) and the telescopic bracket (403) are fixed on the slider of the lead screw and slider assembly (401). 403) are all fixed together with the end of the clamp (404). The end of the clamp (404) is also fixed with a motor D (405) and an arc-shaped bracket B (406). An arc-shaped rack (407) is slidably installed in the groove of the arc-shaped bracket B (406). The gear on the motor shaft of the motor D (405) meshes with the arc-shaped rack (407). An electric cylinder D (410) is fixed below the arc-shaped rack (407). A wrench (408) is fixed at the end of the electric cylinder D (410). The nut A (409) is set at the bottom connection of the feeder. The signal receiving mechanism (5) includes: a bracket B (501), a signal receiver (502), a threaded interface B (503), and a nut B (504); the bracket B (501) is fixed on the upper rear side of the housing (201), the signal receiver (502) is fixed on the top of the bracket B (501), the lower part of the signal receiver (502) is fixed together with the threaded interface B (503), and the nut B (504) is set at the top connection of the feeder; This device is divided into a ground section (1) and an upward section. The upward section is further divided into a climbing mechanism (2), a flipping mechanism (3), a disassembly and docking mechanism (4), and a signal receiving mechanism (5). The ground section (1) includes: a base plate (101), casters (102), hollow support columns (103), a signal transmitter (104), and a threaded interface A (105). Four casters (102) are fixed below the base plate (101), and four hollow support columns (103) and a signal transmitter (104) are fixed above the base plate (101). The top of the signal transmitter (104) is... The end is fixed with a threaded interface A (105); the ground part (1) is in contact with the ground through universal wheels (102); a signal receiving mechanism (5) is fixedly installed on the upper rear side of the outer shell (201) in the climbing mechanism (2); a flipping mechanism (3) is also fixed on the rear side of the outer shell (201); the disassembly and assembly docking mechanism (4) is fixed on the L-shaped bracket (307) in the flipping mechanism (3); four columns are provided below the outer shell (201); the four columns are respectively matched with four supporting hollow columns (103); when not in use, the four columns will be inserted into the four supporting hollow columns (103).

2. The maintenance device for communication tower cable feeders according to claim 1, characterized in that, The climbing mechanism (2) includes: a housing (201), an electric cylinder A (202), an arc-shaped bracket A (203), a climbing wheel (204), a motor A (205), a spring (206), a fixed bracket (207), an electric cylinder B (208), a motor B (209), a cam (210), a limiting rod (211), a climbing wheel frame (212), and a round rod (213); An electric cylinder A (202) is fixed on each of the two sides inside the outer casing (201). An arc-shaped bracket A (203) is fixed at the front end of each electric cylinder A (202). The middle position of the arc-shaped bracket A (203) is fixed together with the fixed bracket (207). Four sliding grooves are provided on the arc-shaped bracket A (203). A climbing wheel frame (212) is slidably installed in each sliding groove. A climbing wheel (204) is provided on each climbing wheel frame (212). The climbing wheel frame (212) and the climbing wheel (204) are connected by a spring. Every two climbing wheels (204) form a group. Two groups are provided on each arc-shaped bracket A (203). A motor A (205) is fixed on the upper climbing wheel (204) in each group. The two climbing wheels (204) in the middle are connected by a belt. The two climbing wheel frames (212) corresponding to the two climbing wheels (204) in each group are fixed together by a round rod (213). The top of the round rod (213) is slightly exposed, and the exposed part is slidably installed in the groove of the limiting rod (211). The middle position of the limiting rod (211) is fixedly installed on the cam (210). The cam (210) is set on the top of the arc bracket A (203). The cam (210) is fixed on the motor shaft of the motor B (209). The motor B (209) is fixed on the arc bracket A (203). The bottom of the fixed bracket (207) is fixed with an electric cylinder B (208). The electric cylinder B (208) passes through the arc bracket A (203) and has a push plate at the front end.

3. The maintenance device for communication tower cable feeders according to claim 2, characterized in that, The climbing wheel (204) is made of natural rubber.

4. The maintenance device for communication tower cable feeders according to claim 1, characterized in that, The flipping mechanism (3) includes: a bracket A (301), a grooved plate (302), a motor C (303), a connecting rod A (304), a connecting rod B (305), a moving rod (306), an L-shaped bracket (307), and a slider (308); the bracket A (301) is fixed to the rear side of the outer shell (201), the grooved plate (302) is fixed together with the bracket A (301), the grooved plate (302) is divided into upper and lower parts, the upper part is provided with a groove, and the lower part is fixed with a motor C (308). 3) The motor C (303) is fixed to one end of the connecting rod A (304), the other end of the connecting rod A (304) is hinged to one end of the connecting rod B (305), the other end of the connecting rod B (305) is hinged to the moving rod (306), and an L-shaped bracket (307) is rotatably installed in the horizontal tube at the top of the moving rod (306). The L-shaped bracket (307) is fixed to the slider (308), and the slider (308) is slidably installed in the groove at the top of the groove plate (302).

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