Cable overheating fault detection device

Abstract

The invention, which relates to the technical field of cable fault detection, discloses a cable overheating fault detection apparatus comprising a bottom plate and a detection assembly. A first electric telescopic rod is mounted in the middle of the upper side of the bottom plate, a storage battery is mounted at the right end of the upper side of the bottom plate, a mounting table is mounted on the left section of the upper side of the bottom plate, a displayer and a PLC are mounted on the front side of the mounting table, and an I-shaped supporting frame is fixed to a telescopic arm of the first electric telescopic rod; an adjusting assembly and a clamping assembly are installed on the side face of the I-shaped supporting frame, and the adjusting assembly is connected with the clamping assembly; the detection assembly comprises a fixing frame, a mounting box, a mounting plate and a gas sensor, the fixing frame is fixed to the upper side of the I-shaped supporting frame, the mounting box is fixed to the upper end of the interior of the fixing frame, an opening is formed in the upper side of the mounting box, and the mounting plate is fixed to the interior of the opening, the detection effect can be improved, and detection blind areas are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cable fault detection, and in particular to a cable overheating fault detection device. Background Art

[0002] In recent years, with the continuous improvement of urbanization and the requirement for high reliability of power supply in urban core areas, the cabling rate of urban power grids has continued to rise, and the total amount of high-voltage cable equipment has maintained a rapid growth of 13% per year. Correspondingly, the resources of ground channels in urban core areas will be extremely tight, and the difficulty of approving the paths of power cable channels will increase day by day. This has led to increasingly tight resources for underground cable channels, and the increasing number of densely laid power cables of different voltage levels in the same channel. The early construction of some cable channels failed to fully consider fire prevention measures, and the fire isolation measures for high and low voltage cables in the same channel and cables with non-effective neutral grounding have not been fully implemented. The layout of optical cables is not standardized, and the construction lacks effective control. The fire monitoring and early warning measures in some channels are still not perfect. Once a cable channel, especially an important cable channel, is lost due to fire caused by overheating of insulation, a large-scale power outage will occur in the city, causing adverse social impacts and leading to immeasurable economic losses; Traditional cable detection mainly relies on manual inspection section by section, and then relies on the workers' eyesight or uses point temperature sensors installed on important parts of high-voltage cables for temperature measurement. The temperature measurement range is limited and it is easy to produce measurement blind spots. For this reason, we propose a cable overheating fault detection device. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a cable overheating fault detection device, which can improve the detection effect, avoid the occurrence of detection blind spots, and effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a cable overheat fault detection device, comprising a base plate and a detection component; Bottom plate: a first electric telescopic rod is installed in the middle of the upper side, a battery is installed at the right end of the upper side of the bottom plate, a mounting platform is installed at the left section of the upper side of the bottom plate, a display and a PLC controller are installed on the front side of the mounting platform, an I-shaped support frame is fixed on the telescopic arm of the first electric telescopic rod, an adjustment component and a clamping component are installed on the side of the I-shaped support frame, and the adjustment component and the clamping component are connected; Detection component: comprising a fixed frame, a mounting box, a mounting plate and a gas sensor, wherein a fixed frame is fixed on the upper side of the I-shaped support frame, a mounting box is fixed on the upper end of the fixed frame, an opening is provided on the upper side of the mounting box, a mounting plate is fixed inside the opening, and evenly distributed gas sensors are installed on the lower side of the mounting plate, a vacuum component is installed on the right side of the mounting box, a moving component and a cleaning component are installed on the front side of the fixed frame, the moving component and the cleaning component are connected, and a shooting component is installed on the right side of the fixed frame. By setting up the detection component, during use, the cable will be cracked at high temperature to produce a variety of gases, such as hydrogen, carbon monoxide, and carbon dioxide. Therefore, by detecting the concentration of various gases in the cable accessories through evenly distributed gas sensors, it can be known whether the cable has an overheating fault; Wherein: the input end of the PLC controller is electrically connected to the output end of the battery, the output end of the PLC controller is electrically connected to the display and the input end of the first electric telescopic rod, and the PLC controller is bidirectionally electrically connected to the gas sensor.

[0005] Furthermore, the exhaust assembly includes an air intake pipe, an exhaust fan, a conical exhaust pipe and a one-way valve. The exhaust port arranged on the right side of the installation box is fixed with an air intake pipe, the air intake fan is installed inside the air intake pipe, the right end of the air intake pipe is fixed with a conical exhaust pipe, a one-way valve is installed on the circumferential surface of the conical exhaust pipe, the input end of the exhaust fan is electrically connected to the output end of the PLC controller, and air is exhausted by setting up the air exhaust assembly.

[0006] Furthermore, the shooting component includes a mounting frame, a camera and a fill light. The mounting frame is fixed on the right side inside the fixed frame. Two corresponding cameras and two corresponding fill lights are installed on the front and rear sides of the mounting frame. The input end of the fill light is electrically connected to the output end of the PLC controller. The camera is electrically connected to the PLC controller in both directions. The faulty cable is photographed by setting the shooting component.

[0007] Furthermore, the adjustment component includes a movable frame, a bidirectional screw and a first motor. Two corresponding strip openings are provided at the left and right ends of the lower side of the I-beam support frame. Two corresponding movable frames are slidably connected inside the strip openings. A threaded hole is provided on the side of the movable frame. The threads of the two threaded holes are opposite. The internal threads of the two threaded holes are connected with a bidirectional screw. The bidirectional screw is welded by two threaded rods with opposite threads. The bidirectional screw is rotatably connected inside the strip opening. A first motor is installed on the rear side of the I-beam support frame. The output shaft of the first motor is fixed to the rear end of the bidirectional screw on the left side. The input end of the first motor is electrically connected to the output end of the PLC controller. The position of the clamping assembly is adjusted by setting the adjustment component.

[0008] Furthermore, the clamping assembly includes a second electric telescopic rod, a connecting frame and a guide wheel. The second electric telescopic rod is installed on the side of the movable frame. The connecting frame is fixed on the telescopic arm of the second electric telescopic rod. All the connecting frames correspond to each other in pairs. An opening is provided on the side of the connecting frame. The guide wheel is rotatably connected inside the opening. The input end of the second electric telescopic rod is electrically connected to the output end of the PLC controller. The cable is clamped by setting the clamping assembly.

[0009] Furthermore, it also includes a connecting component, which includes a sprocket and a chain. A sprocket is fixed to the front end of the bidirectional screw, and the two sprockets are connected by a chain. The two bidirectional screws are connected by setting the connecting component.

[0010] Furthermore, the moving component includes a guide frame, a sliding frame, a second motor, a gear and a second rack. Two corresponding guide frames are fixed on the front and rear sides of the fixed frame. The side of the guide frame is slidably connected with a sliding frame. The side of the sliding frame is installed with a second motor. A gear is fixed on the output shaft of the second motor. A second rack is fixed inside the guide frame. The gear is meshed with the second rack. The input end of the second motor is electrically connected to the output end of the PLC controller. The two cleaning components are driven to move by setting the moving component.

[0011] Furthermore, the cleaning component includes a connecting frame, a rotating shaft, bristles, a gear and a first rack. The connecting frame is fixed to the lower side of the sliding frame. A rotating hole is opened on the lower side of the connecting frame. The inside of the rotating hole is rotatably connected to a rotating shaft. Evenly distributed bristles are fixed to the circumferential surface of the rotating shaft. A gear is fixed to the upper end of the rotating shaft. A first rack meshing with the gear is arranged on the outside of the gear. The two filters are cleaned by setting up the cleaning component.

[0012] Furthermore, an air inlet is opened on the lower side of the installation box, a T-shaped air inlet frame is fixed inside the air inlet, two first racks are respectively fixed to the front and rear ends of the upper side of the T-shaped air inlet frame, and two corresponding filter nets are fixed to the front and rear sides of the T-shaped air inlet frame. The filter nets are set to filter the gas entering the installation box.

[0013] Furthermore, a universal wheel is installed on the lower side of the base plate, and a brake plate is installed on the side of the universal wheel. The universal wheel and the brake plate are provided to facilitate users to move the base plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the cable overheating fault detection device has the following advantages: 1. By setting the adjustment component, the first motor can be started according to the distance between the two cables to be detected during use to rotate the left bidirectional screw. The left bidirectional screw rotates the sprocket and the chain to drive the right bidirectional screw to rotate. The two bidirectional screws rotate to drive the front and rear four moving frames away, so as to adjust the positions of all the front and rear guide wheels. After adjustment, the two cables are located between all the upper and lower guide wheels, and then all the second electric telescopic rods are started to make all the upper and lower guide wheels fit with the two cables. After fitting, the I-shaped support frame can be placed above the two cables. At this time, the bottom plate is pushed to move, and then the detection component is started to detect the overheating faults of the two cables very conveniently. 2. By setting up the detection component, the exhaust component can be started during the detection process to extract the air around the two cables into the installation box. Since the cables will be cracked at high temperature and produce a variety of gases, all the gas sensors inside the installation box will detect the concentration of various gases in the air. After the detection, the display will be displayed. The user can judge whether the cable is faulty according to the concentration of various gases in the air. In this case, the detection blind area can be avoided and the detection effect can be improved; 3. By setting up a shooting component, when the detection component detects a cable fault at a certain location during the detection process, it can start the corresponding camera to shoot the location of the faulty cable and display it on the display. Then the user can further judge the problem of the cable based on the image displayed on the display; 4. The air entering the installation box is filtered through the filter to prevent large particles of residue from entering the installation box. After long-term use, the two second motors can be started to rotate the two gears. During the rotation of the two gears, the two sliding frames are driven to move under the action of the two racks. The movement of the two sliding frames drives the two rotating shafts to move. During the movement of the two rotating shafts, they will rotate under the action of the gears and the first racks, so that all the bristles rotate to clean the two filters at will. In this way, the two filters can be prevented from being blocked and affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 A schematic diagram of the structure of the detection component of the present invention; Figure 3 A schematic diagram of the structure of the shooting component of the present invention; Figure 4 A is an enlarged view of the present invention; Figure 5 It is a schematic diagram of the structure of the regulating component of the present invention.

[0016] In the figure: 1 bottom plate, 2 detection component, 21 fixed frame, 22 installation box, 23 installation plate, 24 gas sensor, 3 exhaust component, 31 intake pipe, 32 exhaust fan, 33 conical exhaust pipe, 34 one-way valve, 4 cleaning component, 41 connecting frame, 42 rotating shaft, 43 brush, 44 gear, 45 first rack, 5 shooting component, 51 mounting frame, 52 camera, 53 fill light, 6 adjustment component, 61 mobile frame, 62 two-way screw, 63 first motor, 7 clamping component, 71 second electric telescopic rod, 72 connecting frame, 73 guide wheel, 8 connecting component, 81 sprocket, 82 chain, 9 mobile component, 91 guide frame, 92 sliding frame, 93 second motor, 94 gear, 95 second rack, 10 T-shaped intake frame, 11 filter, 12 first electric telescopic rod, 13 battery, 14 mounting table, 15 display, 16 PLC controller, 17 universal wheels, 18 brake plates, 19 I-shaped support frame. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-5 ,This embodiment provides a technical solution: a cable overheat fault detection device, including a base plate 1 and a detection component 2; Bottom plate 1: A first electric telescopic rod 12 is installed in the middle of the upper side, a battery 13 is installed at the right end of the upper side of the bottom plate 1, a mounting platform 14 is installed at the left section of the upper side of the bottom plate 1, a display 15 and a PLC controller 16 are installed on the front side of the mounting platform 14, an I-shaped support frame 19 is fixed on the telescopic arm of the first electric telescopic rod 12, an adjustment component 6 and a clamping component 7 are installed on the side of the I-shaped support frame 19, the adjustment component 6 and the clamping component 7 are connected, the adjustment component 6 includes a moving frame 61, a bidirectional screw 62 and a first motor 63, two corresponding strip-shaped openings are provided at the left and right ends of the lower side of the I-shaped support frame 19, two corresponding moving frames 61 are slidably connected inside the strip-shaped openings, threaded holes are provided on the side of the moving frame 61, the threads of the two threaded holes are opposite, the internal threads of the two threaded holes are connected with bidirectional screws 62, the bidirectional screw 62 is welded by two threaded rods with opposite threads, the bidirectional screw 62 is rotatably connected inside the strip-shaped opening, and a A first motor 63, the output shaft of the first motor 63 is fixed to the rear end of the left bidirectional screw 62, the input end of the first motor 63 is electrically connected to the output end of the PLC controller 16, the clamping assembly 7 includes a second electric telescopic rod 71, a connecting frame 72 and a guide wheel 73, the second electric telescopic rod 71 is installed on the side of the mobile frame 61, the connecting frame 72 is fixed on the telescopic arm of the second electric telescopic rod 71, all the connecting frames 72 correspond to each other in pairs, the side of the connecting frame 72 is provided with an opening, the inside of the opening is rotatably connected with the guide wheel 73, the input end of the second electric telescopic rod 71 is electrically connected to the output end of the PLC controller 16, and also includes a connecting assembly 8, the connecting assembly 8 includes a sprocket 81 and a chain 82, the front end of the bidirectional screw 62 is fixed with a sprocket 81, the two sprockets 81 are connected by the chain 82, the two bidirectional screws 62 are connected by setting the connecting assembly 8, the cable is clamped by setting the clamping assembly 7, and the position of the clamping assembly 7 is adjusted by setting the adjustment assembly 6; Detection component 2: includes a fixed frame 21, a mounting box 22, a mounting plate 23 and a gas sensor 24. The fixed frame 21 is fixed on the upper side of the I-shaped support frame 19, and the mounting box 22 is fixed to the upper end of the fixed frame 21. The upper side of the mounting box 21 is provided with an opening, and the mounting plate 23 is fixed inside the opening. The lower side of the mounting plate 23 is installed with evenly distributed gas sensors 24. The right side of the mounting box 22 is installed with an exhaust component 3. The front side of the fixed frame 21 is installed with a moving component 9 and a cleaning component 4. The moving component 9 and the cleaning component 4 are connected. The right side of the fixed frame 21 is installed with a shooting component 5. The exhaust component 3 includes an air intake pipe 31, an exhaust fan 32, a conical exhaust pipe 33 and a one-way valve 34. The right side of the mounting box 22 An air intake pipe 31 is fixed inside the exhaust port, an exhaust fan 32 is installed inside the air intake pipe 31, a conical exhaust pipe 33 is fixed to the right end of the air intake pipe 31, a one-way valve 34 is installed on the circumferential surface of the conical exhaust pipe 33, the input end of the exhaust fan 32 is electrically connected to the output end of the PLC controller 16, the shooting component 5 includes a mounting frame 51, a camera 52 and a fill light 53, the mounting frame 51 is fixed on the right side inside the fixed frame 21, two corresponding cameras 52 and two corresponding fill lights 53 are installed on the front and rear sides of the mounting frame 51, the input end of the fill light 53 is electrically connected to the output end of the PLC controller 16, the camera 52 is bidirectionally electrically connected to the PLC controller 16, the moving component 9 includes a guide frame 91, a slide Frame 92, second motor 93, gear 94 and second rack 95, two corresponding guide frames 91 are fixed on the front and rear sides of the fixed frame 21, the side of the guide frame 91 is slidably connected with the sliding frame 92, the side of the sliding frame 92 is installed with the second motor 93, the output shaft of the second motor 93 is fixed with a gear 94, the inside of the guide frame 91 is fixed with a second rack 95, the gear 94 is meshed with the second rack 95, the input end of the second motor 93 is electrically connected to the output end of the PLC controller 16, the cleaning component 4 includes a connecting frame 41, a rotating shaft 42, bristles 43, a gear 44 and a first rack 45, the lower side of the sliding frame 92 is fixed with a connecting frame 41, the lower side of the connecting frame 41 is provided with a rotating hole, and the inside of the rotating hole is rotatably connected with A rotating shaft 42, on the circumferential surface of which bristles 43 are evenly distributed, a gear 44 is fixed to the upper end of the rotating shaft 42, and a first rack 45 meshing with the gear 44 is provided on the outside of the gear 44, the two filters 11 are cleaned by providing a cleaning component 4, the two cleaning components 4 are driven to move by providing a moving component 9, the faulty cable is photographed by providing a shooting component 5, the exhaust component 3 is provided to exhaust, and the detection component 2 is provided so that during use, the cable will be cracked at high temperature to generate a variety of gases, such as hydrogen, carbon monoxide, and carbon dioxide. Therefore, the concentration of various gases in the cable accessories can be detected by evenly distributed gas sensors 24 to know whether the cable has an overheating fault; Among them: the input end of the PLC controller 16 is electrically connected to the output end of the battery 13, the output end of the PLC controller 16 is electrically connected to the display 15 and the input end of the first electric telescopic rod 12, and the PLC controller 16 is bidirectionally electrically connected to the gas sensor 24.

[0019] Among them: an air inlet is opened on the lower side of the installation box 22, a T-shaped air inlet frame 10 is fixed inside the air inlet, two first racks 45 are respectively fixed to the front and rear ends of the upper side of the T-shaped air inlet frame 10, and two corresponding filter screens 11 are fixed to the front and rear sides of the T-shaped air inlet frame 10. The filter screen 11 is set to filter the gas entering the installation box 22.

[0020] Wherein: a universal wheel 17 is installed on the lower side of the base plate 1, and a brake plate 18 is installed on the side of the universal wheel 17. The universal wheel 17 and the brake plate 18 are provided to facilitate users to move the base plate 1.

[0021] The working principle of the cable overheat fault detection device provided by the present invention is as follows: when in use, the first electric telescopic rod 12 is first started to make the I-shaped support frame 19 move upward between the two cables to be detected, and then the first motor 63 is started according to the distance between the two cables to be detected to make the left bidirectional screw 62 rotate, and the left bidirectional screw 62 rotates under the action of the sprocket 81 and the chain 82 to drive the right bidirectional screw 62 to rotate, and the two bidirectional screws 62 rotate to drive the front and rear four moving frames 61 away, so as to adjust the positions of all the front and rear guide wheels 73. After the adjustment, the two cables are in the position The second electric telescopic rods 71 ​​are then started so that the upper and lower guide wheels 73 fit the two cables. After fitting, the I-shaped support frame 19 can be placed above the two cables. At this time, the bottom plate 1 is pushed to move, and the movement of the bottom plate 1 drives the I-shaped support frame 19 to move. During the movement of the I-shaped support frame 19, the exhaust fan 32 is started to draw the air around the two cables into the installation box 22. At this time, all the gas sensors 24 in the installation box 22 will detect the concentration of various gases in the air, and the display 15 will display the concentration of various gases in the air. The user can judge whether the cable is faulty according to the concentration of various gases in the air. In this case, the detection blind area can be avoided and the detection effect can be improved. During the detection process of the detection component 2, when a cable fault is detected at a certain location, the corresponding camera 52 can be started to shoot the position of the faulty cable and then displayed on the display 15. Then the user can further judge the problem of the cable according to the image displayed by the data displayed on the display 15. During the process of air entering the installation box 22, the filter 11 filters the air entering the installation box 22 to prevent large particles of residue from entering the installation box 22. After long-term use, the two second motors 93 can be started to rotate the two gears 94. During the rotation of the two gears 94, the two sliding frames 92 are driven to move under the action of the two racks 95. The two sliding frames 92 move and drive the two rotating shafts 42 to move. During the movement of the two rotating shafts 42, they will rotate under the action of the gears 44 and the first rack 45, so that all the bristles 43 rotate to clean the two filter screens 11 at will. In this case, the two filter screens can be prevented from being blocked and affecting subsequent use.

[0022] It is worth noting that the PLC controller 16 disclosed in the above embodiment is specifically a Siemens S7-200, the first motor 63 and the second motor 93 can use 1LE0003 three-phase asynchronous motors, the second electric telescopic rod 71 and the first electric telescopic rod 12 can use TGC-A high-thrust electric telescopic rods, the exhaust fan 32, the fill light 53, the battery 13, the display 15, the gas sensor 24, and the camera 52 can be freely configured according to the actual application scenario, and the PLC controller 16 controls the exhaust fan 32, the fill light 53, the first motor 63, the second electric telescopic rod 71, the second motor 93, the first electric telescopic rod 12, the battery 13, the display 15, and the gas sensor 24 to work using methods commonly used in the prior art.

[0023] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cable overheat fault detection device, characterized in that: It comprises a base plate (1) and a detection component (2); A bottom plate (1): a first electric telescopic rod (12) is installed in the middle of the upper side, a storage battery (13) is installed at the right end of the upper side of the bottom plate (1), a mounting platform (14) is installed at the left section of the upper side of the bottom plate (1), a display (15) and a PLC controller (16) are installed on the front side of the mounting platform (14), an I-shaped support frame (19) is fixed on the telescopic arm of the first electric telescopic rod (12), an adjustment component (6) and a clamping component (7) are installed on the side of the I-shaped support frame (19), and the adjustment component (6) and the clamping component (7) are connected; A detection component (2): comprising a fixed frame (21), a mounting box (22), a mounting plate (23) and a gas sensor (24); the fixed frame (21) is fixed on the upper side of the I-shaped support frame (19); the mounting box (22) is fixed at the upper end of the fixed frame (21); an opening is provided on the upper side of the mounting box (21); a mounting plate (23) is fixed inside the opening; evenly distributed gas sensors (24) are mounted on the lower side of the mounting plate (23); a suction component (3) is mounted on the right side of the mounting box (22); a moving component (9) and a cleaning component (4) are mounted on the front side of the fixed frame (21); the moving component (9) and the cleaning component (4) are connected; and a shooting component (5) is mounted on the right side of the fixed frame (21); The input end of the PLC controller (16) is electrically connected to the output end of the battery (13), the output end of the PLC controller (16) is electrically connected to the display (15) and the input end of the first electric telescopic rod (12), and the PLC controller (16) is bidirectionally electrically connected to the gas sensor (24).

2. A cable overheat fault detection device according to claim 1, characterized in that: The exhaust assembly (3) comprises an air intake pipe (31), an exhaust fan (32), a conical exhaust pipe (33) and a one-way valve (34); an air intake pipe (31) is fixed inside an exhaust port arranged on the right side of the installation box (22); an exhaust fan (32) is installed inside the air intake pipe (31); a conical exhaust pipe (33) is fixed at the right end of the air intake pipe (31); a one-way valve (34) is installed on the circumferential surface of the conical exhaust pipe (33); and an input end of the exhaust fan (32) is electrically connected to an output end of a PLC controller (16).

3. A cable overheat fault detection device according to claim 1, characterized in that: The shooting assembly (5) comprises a mounting frame (51), a camera (52) and a fill light (53); the mounting frame (51) is fixed on the right side inside the fixed frame (21); two corresponding cameras (52) and two corresponding fill lights (53) are installed on the front and rear sides of the mounting frame (51); the input end of the fill light (53) is electrically connected to the output end of the PLC controller (16); and the camera (52) is bidirectionally electrically connected to the PLC controller (16).

4. A cable overheat fault detection device according to claim 1, characterized in that: The adjustment assembly (6) comprises a moving frame (61), a bidirectional screw rod (62) and a first motor (63). Two corresponding strip-shaped openings are provided at the left and right ends of the lower side of the I-shaped support frame (19). The inside of the strip-shaped openings are slidably connected to the two corresponding moving frames (61). The side of the moving frame (61) is provided with a threaded hole. The threads of the two threaded holes are opposite to each other. The inside of the two threaded holes is threadedly connected to the bidirectional screw rod (62). The bidirectional screw rod (62) is welded by two threaded rods with opposite threads. The bidirectional screw rod (62) is rotatably connected to the inside of the strip-shaped opening. The rear side of the I-shaped support frame (19) is provided with a first motor (63). The output shaft of the first motor (63) is fixed to the rear end of the bidirectional screw rod (62) on the left side. The input end of the first motor (63) is electrically connected to the output end of the PLC controller (16).

5. A cable overheat fault detection device according to claim 4, characterized in that: The clamping assembly (7) comprises a second electric telescopic rod (71), a connecting frame (72) and a guide wheel (73); the second electric telescopic rod (71) is mounted on the side of the mobile frame (61); the connecting frame (72) is fixed on the telescopic arm of the second electric telescopic rod (71); all the connecting frames (72) correspond to each other in pairs; an opening is provided on the side of the connecting frame (72); the guide wheel (73) is rotatably connected inside the opening; the input end of the second electric telescopic rod (71) is electrically connected to the output end of the PLC controller (16).

6. A cable overheat fault detection device according to claim 4, characterized in that: It also includes a connecting assembly (8), the connecting assembly (8) comprising a sprocket (81) and a chain (82), the sprocket (81) being fixed to the front end of the bidirectional screw rod (62), and the two sprockets (81) being connected via the chain (82).

7. A cable overheat fault detection device according to claim 1, characterized in that: The moving assembly (9) comprises a guide frame (91), a sliding frame (92), a second motor (93), a gear (94) and a second rack (95); two corresponding guide frames (91) are fixed on the front and rear sides of the fixed frame (21); the sliding frame (92) is slidably connected to the side of the guide frame (91); the second motor (93) is installed on the side of the sliding frame (92); the gear (94) is fixed on the output shaft of the second motor (93); the second rack (95) is fixed inside the guide frame (91); the gear (94) is meshed with the second rack (95); the input end of the second motor (93) is electrically connected to the output end of the PLC controller (16).

8. A cable overheat fault detection device according to claim 7, characterized in that: The cleaning component (4) comprises a connecting frame (41), a rotating shaft (42), bristles (43), a gear (44) and a first rack (45); the connecting frame (41) is fixed to the lower side of the sliding frame (92); a rotating hole is provided on the lower side of the connecting frame (41); the rotating shaft (42) is rotatably connected inside the rotating hole; bristles (43) are evenly distributed on the circumferential surface of the rotating shaft (42); a gear (44) is fixed to the upper end of the rotating shaft (42); and a first rack (45) meshing with the gear (44) is provided on the outside of the gear (44).

9. A cable overheat fault detection device according to claim 8, characterized in that: An air inlet is provided at the lower side of the installation box (22), a T-shaped air inlet frame (10) is fixed inside the air inlet, two first racks (45) are respectively fixed to the front and rear ends of the upper side of the T-shaped air inlet frame (10), and two corresponding filter screens (11) are fixed to the front and rear sides of the T-shaped air inlet frame (10).

10. A cable overheat fault detection device according to claim 1, characterized in that: A universal wheel (17) is installed on the lower side of the base plate (1), and a brake plate (18) is installed on the side of the universal wheel (17).

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