A cable online monitoring device for fault identification

Abstract

The present invention discloses an online cable monitoring device for fault identification, which relates to the technical field of cable monitoring devices. It comprises an outer shell, the outer shell is fixedly connected to a connecting plate, the connecting plate is slidably connected to a movable plate, the movable plate is rotatably connected to a first fixed frame, the first fixed frame is fixedly connected to an electric push rod, the telescopic end of the electric push rod is fixedly connected to a second fixed block, the second fixed block is rotatably connected to a guide wheel, the first fixed frame is fixedly connected to an electromagnetic sensor, and a tension spring is fixedly connected between the electromagnetic sensor and the adjacent movable plate. The present invention uses the guide wheel to always fit the cable during the process of the device moving to the lowest point of the cable, ensuring that the distance between the electromagnetic sensor and the cable is constant, avoiding the impact on the value detected by the electromagnetic sensor when the cable is damaged due to the reduction in the distance between the electromagnetic sensor and the lower side of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cable partial discharge monitoring devices, and in particular to an online cable monitoring device for fault identification. Background Art

[0002] A cable is a device for transmitting electrical energy or signals, usually consisting of several or several groups of conductors. During long-term operation, the cable is affected by electricity, heat, and stress, as well as improper operation during construction and installation, which may cause the cable insulation to break. Once the insulation is damaged, the originally uniformly distributed electric field will concentrate at the damaged area, forming an area with excessively high local electric field intensity, inducing local discharge of the cable. At the same time, during the local discharge process, due to the rapid transfer of charge and the generation of transient current, according to electromagnetic field theory, a magnetic field will inevitably be generated around the discharge area.

[0003] Currently, inspection robots are usually hoisted on cables. During the movement, the inspection robots use the electromagnetic sensors attached to them to detect changes in the magnetic field and thus locate local discharges. However, after the cable is installed, the cable usually takes an arc shape due to its own gravity, and the electromagnetic sensor of the hoisted inspection robot is usually located between its guide wheels. When the inspection robot moves to the lowest point of the cable arc, the distance between the cable and the electromagnetic sensor decreases, which increases the electromagnetic intensity detected by the inspection robot, affecting the final detection result of the inspection robot. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a cable online monitoring device for fault identification.

[0005] The technical implementation scheme of the present invention is: a cable online monitoring device for fault identification, including an outer shell, the outer shell is fixed with a matrix-distributed folding plate, the folding plate is rotatably connected to a movable column on the side away from the outer shell, the movable column is provided with a driving wheel and a guide wheel through a connecting mechanism, the driving wheel and the adjacent guide wheels are symmetrically distributed, the outer shell is fixed with a symmetrically distributed connecting plate, the connecting plate is slidably connected to a movable plate, the end of the movable plate away from the adjacent connecting plate is rotatably connected to a first fixed frame, the interior of the first fixed frame is fixed with an electric push rod, the telescopic end of the electric push rod is fixed with a second fixed block, the second fixed block is rotatably connected to a guide wheel, and the opposite sides of the symmetrically distributed first fixed frame are fixed with electromagnetic sensors, and tension springs are fixed between the electromagnetic sensors and the adjacent connecting plates.

[0006] Furthermore, the connecting mechanism includes a threaded rod, which is rotatably connected to the interior of the adjacent moving column, and the interior of the moving column is slidably connected to a symmetrically distributed rectangular plate, and the rectangular plate is threadedly matched with the adjacent threaded rod, and the interior of the moving column is slidably connected to a symmetrically distributed first fixed block, and the first fixed block is provided with a through hole, and the threaded rod is located in the through hole of the adjacent first fixed block, and the driving wheel and the guide wheel are respectively rotatably connected to the adjacent first fixed block, and a spring is fixed between the first fixed block and the adjacent rectangular plate, and a first motor is fixed to one side of the moving column, and the output shaft of the first motor and the adjacent threaded rod are transmitted through a gear set, and an adjustment component is provided on the side of the moving column away from the outer shell, and the adjustment component is used to change the position of the adjacent moving column.

[0007] The cam is fixedly provided with a first end in contact with the second end of the movable frame, and the cam is fixedly provided with a first end in contact with the second movable frame.

[0008] Furthermore, the moving assembly includes a hydraulic telescopic rod, which is fixedly connected to the inside of the adjacent first fixed frame, and a spring is fixedly connected between the telescopic end of the hydraulic telescopic rod and its fixed part, and a cavity is provided on the side of the moving plate away from the adjacent connecting plate, and a first limit plate is fixedly connected to the cavity of the moving plate, and the first fixed frame is fixedly connected to a fixed shaft, and the fixed shaft passes through the moving plate and is rotatably connected to it, and the fixed shaft is fixed to a first positioning plate, and the first positioning plate slides in the cavity of the adjacent moving plate, and a gap is provided between the first positioning plate and the adjacent first limit plate, and the fixed part of the hydraulic telescopic rod is connected to the cavity of the adjacent moving plate through a connecting pipe.

[0009] Furthermore, the second limiting plate and the adjacent second positioning plate are respectively located on both sides of the adjacent connecting tubes, and the first positioning plate and the adjacent first limiting plate are respectively located on both sides of the adjacent connecting tubes.

[0010] Furthermore, it also includes a cleaning mechanism, which is used to clean dust on the cable surface, and the cleaning mechanism is arranged on both sides of the outer shell, and the cleaning mechanism includes a symmetrically distributed U-shaped frame, and the U-shaped frame is slidingly connected to one side of the outer shell, and the U-shaped frame is provided with a detector, and one side of the U-shaped frame is rotatably connected to a centrally symmetrically distributed arc plate, and two adjacent arc plates are hinged, and the arc plate is rotatably connected to an arc rack, and two adjacent arc racks are symmetrically distributed, and two adjacent arc racks are hinged, and a cleaning brush is provided inside the arc rack, and one of the centrally symmetrically distributed arc plates is fixedly connected to a second motor, and the output shaft of the second motor is fixedly connected to a gear meshing with the adjacent arc rack, and the outer shell is provided with a trigger component for changing the position of the arc rack.

[0011] Furthermore, the trigger assembly includes a dual-axis motor, the dual-axis motor is fixedly connected to the lower side of the outer shell, the outer shell is slidably connected to a symmetrically distributed push plate, the dual-axis motor is provided with two output shafts, the output shafts of the dual-axis motor are fixedly connected to a screw, the push plate is threadedly connected to adjacent screws, the outer shell is fixedly connected to a first telescopic rod distributed in a matrix, the telescopic end of the first telescopic rod is fixed to the adjacent push plate, the outer shell is provided with a matrix-distributed groove, a liquid storage tube is fixed in the groove of the outer shell, the liquid storage tube is connected to the fixed part of the adjacent first telescopic rod through a connecting tube, the interior of the liquid storage tube is slidably connected to a push plate, the push plate is fixedly connected to an arc baffle, the arc baffle is telescopic, the telescopic end of the arc baffle is limitedly slidably connected to the adjacent liquid storage tube, and the liquid storage tube is provided with a slide groove that slides with the adjacent push plate.

[0012] Furthermore, the hinge axis of the arc-shaped rack is concentric with the hinge axis of the adjacent arc-shaped plate, the curvature of two adjacent arc-shaped racks is the same, and the arc-shaped rack is in a semicircular ring shape.

[0013] Furthermore, a second telescopic rod is fixedly connected to one side of the push plate close to the adjacent U-shaped frame, the telescopic end of the second telescopic rod is fixedly connected to the adjacent U-shaped frame, a spring is fixedly connected between the fixed portion of the second telescopic rod and the adjacent U-shaped frame, a hydraulic push rod is inlaid on one end of the U-shaped frame away from the adjacent second telescopic rod, the telescopic end of the hydraulic push rod is fixedly connected to a second fixing frame, the second fixing frame is slidingly matched with the adjacent U-shaped frame, the fixing portion of the hydraulic push rod is connected to the fixing portion of the adjacent second telescopic rod by a connecting pipe, and the end of the second fixing frame away from the adjacent U-shaped frame is hingedly connected to a hinge column that is slidingly matched with the adjacent curved plate.

[0014] Furthermore, it also includes a battery life mechanism, which is used to enable the outer shell to work continuously. The battery life mechanism is arranged on one side of the outer shell, and the battery life mechanism includes a fixing plate. The fixing plate is located on one side of the outer shell, and the fixing plate is fixed to the upper end of the electric pole through a connecting piece. The upper side of the fixing plate is fixed with a cleaning box, and the interior of the cleaning box is provided with a cleaning device and a charger. The lower side of the outer shell is provided with electric wheels distributed in a matrix and cooperating with the fixing plate.

[0015] The present invention has the following advantages: the present invention uses the guide wheel to always fit with the cable during the process of the device moving to the lowest point of the cable, ensuring that the distance between the electromagnetic sensor and the cable is constant, and avoiding the impact on the value detected by the electromagnetic sensor when the cable is damaged due to the reduction of the distance between the electromagnetic sensor and the lower side of the cable.

[0016] By changing the position of the movable column on one side during the movement of the device, the cross arm is prevented from affecting the normal movement of the device when the device moves along the cable to the position where it contacts the cross arm, and the length of the cable monitored by the device is shortened.

[0017] The cleaning brush on the arc-shaped rack is driven to rotate to clean the dust attached to the cable surface, so as to prevent the dust attached to the cable from affecting the normal use of the electromagnetic sensor and ensure the accuracy of the electromagnetic sensor monitoring results.

[0018] The sliding grooves on the adjacent liquid storage pipes are shielded by the arc-shaped baffles to prevent the hydraulic oil of the liquid storage pipes from leaking outwards when the sliding grooves on the adjacent liquid storage pipes of the push plate move. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the outer shell cross section of the present invention;

[0021] Figure 3Schematic diagram of the three-dimensional structure of the internal parts of the first fixing frame of the present invention;

[0022] Figure 4 Schematic diagram of the three-dimensional structure of the connecting mechanism of the present invention;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the internal parts of the movable column of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the connection relationship between the rectangular plate and the first fixing block of the present invention;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the second limiting plate and the second positioning plate of the present invention;

[0026] Figure 8 Schematic diagram of the three-dimensional structure of the mobile assembly of the present invention;

[0027] Figure 9 Schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention;

[0028] Figure 10 Schematic diagram of the three-dimensional structure of the outer shell and the liquid storage tube of the present invention;

[0029] Figure 11 Schematic diagram of the three-dimensional structure of the arc plate and the arc rack of the present invention;

[0030] Figure 12 It is a schematic diagram of the three-dimensional structure of the hydraulic push rod and the second fixing frame of the present invention;

[0031] Figure 13 It is a schematic diagram of the three-dimensional structure of the internal parts of the liquid storage tube of the present invention.

[0032] The meanings of the reference numerals in the figure are: 1: outer shell, 11: folding plate, 12: moving column, 13: driving wheel, 14: guide wheel, 15: connecting plate, 16: moving plate, 17: first fixed frame, 18: electric push rod, 19: guide wheel, 2: threaded rod, 21: rectangular plate, 22: first fixed block, 23: first motor, 4: second fixed block, 41: hydraulic telescopic rod, 42: first limit plate, 43: fixed shaft, 44: first positioning plate, 5: U-shaped frame, 51: curved plate, 52: curved rack, 53: second motor, 6: dual-axis motor, 61: push plate, 62: first telescopic rod, 63: liquid storage tube, 64: curved baffle, 65: push plate, 66: second telescopic rod, 67: hydraulic push rod, 68: second fixed frame, 7: fixed plate, 71: cleaning box, 72: first liquid storage ring, 73: moving ring, 74: second liquid storage ring, 75: second limit plate, 76: second positioning plate. DETAILED DESCRIPTION

[0033] Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present invention. The appearance of such a phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] The installed cables will be curved due to their own gravity. As shown in the figure, when using an inspection robot to inspect the installed cables, when the inspection robot moves toward the lowest point of the cable arc, the vertical distance between the cable and the inspection robot continues to decrease, and the electromagnetic intensity detected by the inspection robot also increases, which affects the final detection result of the inspection robot. The present invention avoids this situation by the following operations:

[0035] Example 1: A cable online monitoring device for fault identification, such as Figure 1-Figure 4 As shown, it includes an outer shell 1, a control terminal is provided on the upper side of the outer shell 1 (it is an existing device, shown in the figure), the control terminal on the outer shell 1 is connected to the remote control terminal signal, a battery is provided on the lower side of the outer shell 1, four folding plates 11 distributed in a matrix are fixedly connected to the peripheral side of the outer shell 1, and a moving column 12 is rotatably connected to the upper side of the folding plate 11. A driving wheel 13 and a guide wheel 14 are provided on the moving column 12 through a connecting mechanism. The driving wheel 13 is electrically connected to the control terminal and is an active wheel, and the guide wheel 14 is a driven wheel. The driving wheel 13 and the adjacent guide wheels 14 are symmetrically distributed, and the four driving wheels 13 and the four guide wheels 14 cooperate to fix the device on two cables. The outer shell 1 is fixed with two connecting plates 15 distributed symmetrically in front and back, and the two connecting plates 15 are both slidably connected to a moving plate 16. The upper end of the moving plate 16 is rotatably connected to a first fixing frame 17, and the first fixing frame 18 is connected to the second fixing frame 19. An electric push rod 18 is fixed to the inside of a fixed frame 17, and the telescopic end of the electric push rod 18 is fixed to the second fixed block 4. The second fixed block 4 is rotatably connected to a guide wheel 19, which is also a driven wheel. The two guide wheels 19 cooperate with the four guide wheels 14 to guide the device during its movement. The opposite sides of the two first fixed frames 17 are fixed with electromagnetic sensors electrically connected to the control terminal. The electromagnetic sensor determines whether the cable is damaged by detecting whether discharge occurs in the cable. A tension spring is fixed between the electromagnetic sensor and the adjacent connecting plate 15 to maintain the initial position of the electromagnetic sensor and to drive the electromagnetic sensor to reset to the initial position after movement. The tension spring, the adjacent electric push rods 18 and the adjacent guide wheels 19 cooperate with each other to maintain the distance between the electromagnetic sensor and the lower side of the cable, thereby maintaining the accuracy of the electromagnetic sensor detection result.

[0036] like Figure 2-Figure 6As shown, the connecting mechanism includes a threaded rod 2, which is rotatably connected to the inside of an adjacent moving column 12. The inside of the moving column 12 is slidably connected to two rectangular plates 21 that are symmetrically distributed up and down. The rectangular plates 21 are threadedly matched with the adjacent threaded rods 2, and the threaded rods 2 drive the two adjacent rectangular plates 21 to move synchronously. The inside of the moving column 12 is slidably connected to two first fixed blocks 22 that are symmetrically distributed up and down. The first fixed blocks 22 are provided with through holes. The threaded rods 2 are located in the through holes of the adjacent first fixed blocks 22, and the diameter of the through holes of the first fixed blocks 22 is larger than the diameter of the adjacent threaded rods 2, so as to avoid the rotation of the threaded rods 2 affecting the position of the first fixed blocks 22. The driving wheel 13 and the guide wheel 14 are rotatably connected to the adjacent first fixed blocks 22 respectively. The first fixed blocks 22 are symmetrically distributed with the adjacent rectangular plates 21. Springs are fixed between the plates 21 to maintain the initial positions of adjacent first fixed blocks 22 and to drive the first fixed blocks 22 to return to their initial positions after movement. The rectangular plates 21 drive the adjacent first fixed blocks 22 to move synchronously through the transmission of adjacent springs, and through the cooperation of the rectangular plates 21 and adjacent springs, a certain extrusion pressure is maintained between the adjacent driving wheels 13 or guide wheels 14 and the cables. The first fixed blocks 22 are provided with through holes. A first motor 23 electrically connected to the control terminal is fixed to one side of the moving column 12. The output shaft of the first motor 23 and the adjacent threaded rod 2 are transmitted through a gear set. The output shaft of the first motor 23 drives the adjacent threaded rod 2 to rotate through the transmission of the gear set. An adjustment component is provided on the upper side of the moving column 12, and the adjustment component is used to change the position of the adjacent moving columns 12.

[0037] like Figure 4-Figure 7As shown, the adjustment component includes a first liquid storage ring 72, the first liquid storage ring 72 is fixedly connected to the upper side of the movable column 12, the lower side of the first liquid storage ring 72 is sealed and slidably connected to the movable ring 73, the interior of the first liquid storage ring 72 is filled with hydraulic oil, the interior of the first liquid storage ring 72 is fixedly connected to a spring fixed to the adjacent movable ring 73, for maintaining the initial position of the adjacent movable ring 73, and driving the movable ring 73 to return to the initial position after movement, the movable ring 73 is squeezed and matched with the adjacent first fixed block 22, and the movable ring 73 moves upward under the squeezing force of the adjacent first fixed block 22, thereby squeezing out the hydraulic oil inside the adjacent first liquid storage ring 72, and the folding plate 11 is rotatably connected to the side of the adjacent first fixed frame 17 with a second liquid storage ring 74, and the second liquid storage ring 74 and the adjacent first liquid storage ring 72 are connected by The connecting pipe is connected, and a second limiting plate 75 is fixedly connected to the inside of the second liquid storage ring 74. The connecting shaft between the movable column 12 and the adjacent folding plate 11 passes through the adjacent second liquid storage ring 74 and is rotatably connected thereto. The inside of the second liquid storage ring 74 is slidably connected to a second positioning plate 76 fixed to the adjacent connecting shaft. The second limiting plate 75 and the adjacent second positioning plate 76 are respectively located on both sides of the adjacent connecting pipe. There is a gap between the second limiting plate 75 and the adjacent second positioning plate 76, and the second limiting plate 75 and the adjacent second positioning plate 76 are filled with hydraulic oil. The connecting shaft is rotatably connected to the adjacent folding plate 11, and the second positioning plate 76 moves due to the change in the volume of hydraulic oil between it and the adjacent second limiting plate 75. A moving component for changing the position of the adjacent first fixed frame 17 is provided on the upper side of the movable plate 16.

[0038] like Figure 3 and Figure 8As shown, the moving assembly includes a hydraulic telescopic rod 41, which is fixed to the inside of the adjacent first fixed frame 17. A spring is fixed between the telescopic end of the hydraulic telescopic rod 41 and its fixed portion, which is used to maintain the initial position of the telescopic end of the adjacent hydraulic telescopic rod 41 and drive the telescopic end of the hydraulic telescopic rod 41 to reset to the initial position. A cavity is provided on the upper side of the moving plate 16, and a first limiting plate 42 is fixed in the cavity of the moving plate 16. The first fixed frame 17 is fixed with a fixed shaft 43, which passes through the moving plate 16 and is rotatably connected thereto. The fixed shaft 43 is fixed with a first positioning plate 44, which slides in the cavity of the adjacent moving plate 16, and the first positioning plate 44 is fixed with the adjacent first limiting plate 4 2, a gap is provided between the fixed part of the hydraulic telescopic rod 41 and the cavity of the movable plate 16 are filled with hydraulic oil, the fixed part of the hydraulic telescopic rod 41 is connected to the cavity of the adjacent movable plate 16 through a connecting pipe, the first positioning plate 44 and the adjacent first limiting plate 42 are respectively located on both sides of the adjacent connecting pipe, the telescopic end of the hydraulic telescopic rod 41 is squeezed by the adjacent second fixed block 4 and moves toward its fixed part, so that the hydraulic oil in the fixed part of the hydraulic telescopic rod 41 is transported to the cavity of the adjacent movable plate 16 through the connecting pipe, so as to change the volume of the hydraulic oil between the first positioning plate 44 and the adjacent first limiting plate 42, so that the first positioning plate 44 is squeezed by the hydraulic oil and moves, thereby driving the adjacent first fixed frame 17 to rotate.

[0039] When using this device, the staff sets the single use time and usage interval of the device through the control terminal, and then the staff moves the device to the designated position and starts the four first motors 23. The output shaft of the first motor 23 drives the adjacent threaded rods 2 to rotate through the transmission of the gear set, and the threaded rods 2 drive the two adjacent rectangular plates 21 to move in opposite directions. The rectangular plates 21 drive the adjacent first fixed blocks 22 to move synchronously through the springs.

[0040] During the movement of the first fixing block 22, the four first fixing blocks 22 on the upper side respectively drive the adjacent driving wheels 13 to move downward, and the four first fixing blocks 22 on the lower side respectively drive the adjacent guide wheels 14 to move upward, until the four driving wheels 13 and the four guide wheels 14 are tightly fitted with the cables, the staff turns off the four first motors 23, and the four driving wheels 13 and the four guide wheels 14 cooperate with each other to fix the device (the specific shape is as follows Figure 1As shown), the staff then starts the two electric push rods 18, and the telescopic ends of the two electric push rods 18 drive the adjacent second fixed blocks 4 to move downward, and the second fixed blocks 4 drive the adjacent guide wheels 19 to move downward synchronously until the two guide wheels 19 move downward to contact the upper side of the cable. When the guide wheels 19 continue to move downward, the cables intercept the adjacent guide wheels 19, so that the fixed parts of the electric push rods 18 drive the adjacent first fixed frames 17 to move upward, and the first fixed frames 17 drive the electromagnetic inductors thereon and the adjacent movable plates 16 to move upward synchronously to change the distance between the adjacent electromagnetic inductors and the cables. In the process of the electromagnetic inductors moving upward, the tension springs between them and the adjacent connecting plates 15 are stretched and force is stored. Until the staff adjusts the two electromagnetic inductors to the appropriate position, the staff turns off the two electric push rods 18 (at this time, the tension springs between the two electromagnetic inductors and the adjacent movable plates 16 are in a stretched state, but neither is stretched to the limit state).

[0041] After the device is installed, the staff starts the four driving wheels 13 through the control terminal, and the four driving wheels 13 drive the device to move to the right. At the same time, the control terminal starts the electromagnetic sensor, and the electromagnetic sensor monitors the cable. During the monitoring process, when the insulation of the cable is damaged, the cable generates a discharge area at the damaged position and generates an electromagnetic field, which triggers the electromagnetic sensor. When the device moves to the position where the electromagnetic sensor detects the maximum value (that is, the cable damage position), the device marks the point and transmits the detection result to the remote control terminal. The staff then inspects the damaged cable.

[0042] During the above-mentioned movement of the device, when the device moves to the lowest point of the cable (the cable between the two poles is in an arc shape under normal conditions due to its own gravity), the distance between the cable and the outer shell 1 decreases, and at the same time, the force exerted by the cable on the two guide wheels 19 decreases, so that the tension on the tension springs between the two electromagnetic sensors and the adjacent connecting plates 15 is reduced, and the two tension springs are reset to their initial state, thereby driving the two electromagnetic sensors and other parts connected thereto to move downward synchronously, so that the two guide wheels 19 are always in contact with the upper side of the adjacent cables. At this time, the relative position between the guide wheels 19 and the adjacent first fixing frames 17 is kept constant under the action of the adjacent electric push rods 18, so that the distance between the electromagnetic sensors and the cables is always constant, avoiding the situation where the distance between the electromagnetic sensors and the lower side of the cables is reduced when the device moves to the lowest point of the cables, which affects the value detected by the electromagnetic sensors when the cables are damaged, and thus misjudges the location of the cable damage, affecting the subsequent maintenance of the cables.

[0043] In the process of the above-mentioned device moving to the right, when the device moves to the position in contact with the cross arm on the utility pole, the control terminal stops the four driving wheels 13 and simultaneously reversely starts the two first motors 23 on the right side to separate the two driving wheels 13 on the right side and the two guide wheels 14 on the right side from the cable until the four rectangular plates 21 on the right side are all moved to the initial position (at this time, the two first fixed blocks 22 on the upper right side are respectively in contact with the adjacent moving rings 73), and the two first fixed blocks 22 on the upper right side continue to move upward to squeeze the adjacent moving rings 73, so that the four moving rings 73 move upward, thereby moving the four first liquid storage rings 73 upward. The hydraulic oil in 72 is squeezed into the adjacent second liquid storage ring 74 through the connecting pipe, increasing the volume of the hydraulic oil between the adjacent second limit plate 75 and the adjacent second positioning plate 76, so that the adjacent second positioning plate 76 is squeezed by the hydraulic oil and drives the adjacent connecting shaft to rotate, thereby driving the adjacent moving columns 12 and other parts connected thereto to rotate synchronously, until the two moving columns 12 on the right side have rotated 90°, and the control terminal shuts down the two first motors 23 on the right side. At this time, the two moving columns 12 on the right side and other parts connected thereto are all located on the lower side of the cable, so that the above-mentioned parts are completely separated from the cable.

[0044] While the control terminal shuts down the two first motors 23 on the right, it starts the two driving wheels 13 on the left. Under the action of the two driving wheels 13 on the left, the two moving columns 12 on the right side of the device continue to move to the right during the rotation process, so as to avoid the crossarm affecting the normal movement of the device when the device moves along the cable to the position of contact with the crossarm. At the same time, the length of the cable monitored by the device is shortened. After the two moving columns 12 on the right pass over the crossarm, the control terminal starts the two first motors 23 on the right again. The two first motors 23 on the right drive the adjacent moving columns 12 and other parts connected thereto to move synchronously to the vertical position. After the moving columns 12 move to the vertical position again, the two first motors 23 on the right drive the adjacent driving wheels 13 and the adjacent guide wheels 14 approach each other. After the two driving wheels 13 on the right and the two guide wheels 14 on the right move to the position of contact with the cable again, the control terminal shuts down the two first motors 23 on the right again.

[0045] While the above-mentioned control terminal shuts down the two first motors 23 on the right side again, the control terminal starts the two electric push rods 18 in reverse, and the telescopic ends of the two electric push rods 18 drive the adjacent guide wheels 19 to move upward through the adjacent second fixed blocks 4, so that the two guide wheels 19 are separated from the adjacent cables respectively. In the process of the guide wheels 19 moving upward, the tension springs between the two electromagnetic sensors and the adjacent connecting plates 15 are synchronously reset to the initial state, thereby driving the adjacent electromagnetic sensors and the adjacent movable plates 16 to move downward synchronously until the tension springs are reset to the initial state (at this time the second fixed block 4 is in contact with the telescopic end of the adjacent hydraulic telescopic rod 41, but the telescopic end of the electric push rod 18 has not moved to the extreme position, and the guide wheel 19 is not in contact with the upper side of the cable), and the adjacent movable plates 16 and the telescopic ends of the electric push rods 18 are synchronously moved to the initial position.

[0046] When the telescopic end of the electric push rod 18 continues to drive the adjacent parts to move upward, the adjacent second fixed block 4 squeezes the telescopic end of the adjacent hydraulic telescopic rod 41, causing the telescopic end of the adjacent hydraulic telescopic rod 41 to move upward, and squeezes the hydraulic oil in its fixed part into the cavity on the adjacent movable plate 16 through the connecting pipe, thereby increasing the volume of the hydraulic oil between the first limit plate 42 and the adjacent first positioning plate 44, so that the adjacent first positioning plate 44 drives the adjacent fixed shaft 43 to rotate, and the fixed shaft 43 drives the adjacent first fixed frame 17 and other parts connected thereto to rotate synchronously. Until the first fixed frame 17 rotates 90°, the control terminal shuts down the electric push rod 18 to prevent the cross arm from squeezing the two first fixed frames 17 during the continued movement of the device, causing the two first fixed frames to 17 is damaged, until the two first fixing frames 17 are over the crossarm, the control terminal starts the electric push rod 18 again, retracts the telescopic end of the electric push rod 18 into its fixed part, and at the same time, the telescopic end of the adjacent hydraulic telescopic rod 41 moves downward under the action of the adjacent spring, and then the hydraulic oil in the cavity on the movable plate 16 is drawn back to the fixed part of the hydraulic telescopic rod 41, so that the adjacent first fixing frames 17 are reset to the vertical position, until the two first fixing frames 17 are reset to the vertical position, the telescopic ends of the two electric push rods 18 respectively drive the adjacent guide wheels 19 to move to the position in contact with the upper side of the adjacent cables (the specific process can be referred to above), until the two first fixing frames 17 and other parts connected thereto are synchronously reset to the initial position, the control terminal shuts down the two electric push rods 18.

[0047] The movement process of the two movable columns 12 on the left side of the device when they come into contact with the cross arm is the same as the movement process of the two movable columns 12 on the right side, and the movement process of the device to the left can refer to the movement process of the device to the right.

[0048] During cable inspections by inspection robots, if dust accumulates at damaged locations, the electromagnetic waves generated by partial discharge (PD) may be absorbed, scattered, or attenuated by the dust. This can alter the intensity and characteristics of the detected PD signal, affecting fault location and diagnosis. Therefore, the present invention addresses this issue through the following operations:

[0049] Example 2: Based on Example 1, Figure 2 and Figures 9-11 As shown, it also includes a cleaning mechanism, which is used to clean the dust on the cable surface. The cleaning mechanism is arranged on the left and right sides of the outer shell 1. The cleaning mechanism includes two U-shaped frames 5 that are symmetrically distributed on the left and right. The two U-shaped frames 5 are both limitedly slidably connected to the outer shell 1. The back sides of the two U-shaped frames 5 are provided with detectors electrically connected to the control terminal (which are existing devices and not shown in the figure). The detectors are used to monitor the distance between the device and the crossarm. The upper side of the U-shaped frame 5 is rotatably connected to two groups of arc plates 51 that are symmetrically distributed front and back. Each group of arc plates 51 is set to two adjacent arc plates 51 that are symmetrically distributed in the center. The hinge of the two adjacent arc plates 51, the arc plate 51 is rotatably connected to the arc rack 52, and the two adjacent arc racks 52 are symmetrical The arc racks 52 are arranged in a manner such that two adjacent arc-shaped racks 52 are hinged, and in the initial position, the hinge axis of the arc-shaped racks 52 is concentric with the hinge axis of the adjacent arc-shaped plate 51, the curvature of the two adjacent arc-shaped racks 52 is the same, and the arc-shaped racks 52 are semicircular, and a cleaning brush is provided inside the arc-shaped racks 52 for cleaning the dust on the surface of the cable. The arc-shaped plates 51 on the front and rear sides are fixedly connected to a second motor 53 electrically connected to the control terminal, and the output shaft of the second motor 53 is fixedly connected to a gear meshing with the adjacent arc-shaped racks 52, and the output shaft of the second motor 53 drives the adjacent arc-shaped racks 52 and the cleaning brush inside thereof to rotate through the meshing of the gears to clean the dust on the surface of the cable, and the outer shell 1 is provided with a trigger component for changing the position of the arc-shaped racks 52.

[0050] like Figures 9-13As shown, the trigger assembly includes a dual-axis motor 6, a rectangular groove is provided at the lower portion of the outer shell 1, the dual-axis motor 6 is fixedly connected to the rectangular groove of the outer shell 1, the dual-axis motor 6 is electrically connected to the control terminal, and two push plates 61 symmetrically distributed on the left and right are slidably connected in the rectangular groove of the outer shell 1, the dual-axis motor 6 is provided with two output shafts, and the two output shafts of the dual-axis motor 6 are fixedly connected to screws, and the push plates 61 are threadedly connected to adjacent screws, and four first telescopic rods 62 distributed in a matrix are fixedly connected in the rectangular groove of the outer shell 1, and the fixed portion of the first telescopic rod 62 is filled with hydraulic oil, and the telescopic end of the first telescopic rod 62 is fixedly connected to the adjacent push plate 61, and the telescopic end of the first telescopic rod 62 moves synchronously with the movement of the adjacent push plates 61, and the outer shell The body 1 is provided with four grooves distributed in a matrix. A liquid storage tube 63 is fixedly connected to the groove of the outer shell 1. The liquid storage tube 63 is filled with hydraulic oil. The liquid storage tube 63 is connected to the fixed part of the adjacent first telescopic rod 62 through a connecting pipe. The inside of the liquid storage tube 63 is slidably connected to a push plate 65. The hydraulic oil in the fixed part of the first telescopic rod 62 drives the adjacent push plate 65 to move. The lower side of the push plate 65 is fixedly connected to an arc-shaped baffle 64. The arc-shaped baffle 64 is located inside the adjacent liquid storage tube 63. The arc-shaped baffle 64 is telescopic. The telescopic end of the arc-shaped baffle 64 slides on the inner side of the adjacent liquid storage tube 63. The side of the liquid storage tube 63 away from the outer shell 1 is provided with a slide groove that slides with the adjacent push plate 65. The arc-shaped baffle 64 is used to control the adjacent The slide groove on the liquid storage pipe 63 is blocked to prevent the hydraulic oil in the liquid storage pipe 63 from leaking outwards. A second telescopic rod 66 is fixedly connected to the upper side of the push plate 65. The telescopic end of the second telescopic rod 66 is fixedly connected to the adjacent U-shaped frame 5. The push plate 65 drives the adjacent U-shaped frame 5 to move through the transmission of the adjacent second telescopic rod 66. A spring is fixedly connected between the fixed part of the second telescopic rod 66 and the adjacent U-shaped frame 5 to maintain the initial position of the adjacent U-shaped frame 5 and drive the U-shaped frame 5 to reset to the initial position after moving. The upper end of the U-shaped frame 5 is inlaid with two hydraulic push rods 67 distributed symmetrically front and back. The hydraulic push rod 67 is located below the adjacent curved plate 51. The telescopic end of the hydraulic push rod 67 is fixedly connected to the second fixed frame 68. The frame 68 consists of a horizontal plate and two inclined columns distributed in a centrally symmetrical manner. The second fixed frame 68 slides with the adjacent U-shaped frame 5. The fixed part of the hydraulic push rod 67 is connected to the fixed part of the adjacent second telescopic rod 66 through a connecting pipe. When the U-shaped frame 5 moves to the extreme position, the push plate 65 moves upward to move the telescopic end of the second telescopic rod 66 toward its fixed part, and the hydraulic oil in the fixed part is transported to the fixed part of the adjacent hydraulic push rod 67. The upper end of the second fixed frame 68 is hinged with a hinged column that slides with the adjacent arc plate 51. The second fixed frame 68 moves upward to drive the two adjacent arc plates 51 and the adjacent arc racks 52 to rotate synchronously, and the two adjacent arc racks 52 are combined into a gear ring.

[0051] During the process of the above-mentioned device moving to the right, the control terminal starts the dual-axis motor 6, and the output shaft of the dual-axis motor 6 synchronously drives the two push plates 61 to move in opposite directions. The movement of the right push plate 61 is described as an example: the push plate 61 drives the telescopic ends of the two adjacent first telescopic rods 62 to move synchronously to the right. During the movement, the telescopic ends of the first telescopic rods 62 transport the hydraulic oil in their fixed parts through the connecting pipes to the adjacent liquid storage pipes 63, thereby increasing the volume of the hydraulic oil in the adjacent liquid storage pipes 63, and then causing the adjacent push plates 65 to move upward along the slide grooves on the adjacent liquid storage pipes 63. The push plates 65 drive the fixed parts of the adjacent arc-shaped baffles 64 to move synchronously, and the telescopic parts and fixed parts of the arc-shaped baffles 64 cooperate with each other to block the slide grooves on the adjacent liquid storage pipes 63, thereby preventing the hydraulic oil in the liquid storage pipes 63 from leaking out.

[0052] In the process of moving upward, the push plate 65 drives the adjacent second telescopic rod 66 to move upward synchronously. The cooperation of the two second telescopic rods 66 on the right side drives the adjacent U-shaped frame 5 to move upward synchronously, and then drives the four arc plates 51 and the four arc racks 52 on the right side to move upward synchronously, until the U-shaped frame 5 on the right side moves upward to the limit position, that is, when the cable is located at the center of the two adjacent arc racks 52, the U-shaped frame 5 and other parts connected thereto stop moving upward synchronously due to the limitation of the outer shell 1. At this time, the two push plates 65 on the right side drive the adjacent second telescopic rod 66 to continue to move upward, and the telescopic end of the second telescopic rod 66 on the right side is limited by the adjacent U-shaped frame 5 and moves toward its fixed part, so that the second telescopic rod 66 is extended. The spring between the retracted end and the adjacent U-shaped frame 5 is compressed and stored, and at the same time, the hydraulic oil in the fixing part of the second telescopic rod 66 is squeezed out into the fixing part of the adjacent hydraulic push rod 67 through the connecting pipe, so that the telescopic end of the adjacent hydraulic push rod 67 moves upward, thereby driving the adjacent second fixing frame 68 to move upward, and the second fixing frame 68 drives the two adjacent hinged columns to move upward synchronously. As the second fixing frame 68 moves upward, the distance between the second fixing frame 68 and the two adjacent arc-shaped plates 51 gradually decreases, and at the same time, the two arc-shaped plates 51 are moved by the upward squeezing force of the adjacent second fixing frame 68, and the two arc-shaped plates 51 respectively drive the adjacent arc-shaped racks 52 to rotate synchronously until the upper sides of the two adjacent arc-shaped racks 52 are fitted together (such as Figure 11 As shown), the telescopic ends of adjacent hydraulic push rods 67 move synchronously to the limit positions, and then the control terminal shuts down the dual-axis motor 6.

[0053] While the above-mentioned control terminal shuts down the dual-axis motor 6, the control terminal starts the two second motors 53 on the right side. The output shaft of the second motor 53 drives the two adjacent arc-shaped racks 52 to rotate along the two adjacent arc-shaped plates 51 through the spur gear, and the cleaning brushes inside the two arc-shaped racks 52 clean the dust attached to the cable surface to prevent the dust attached to the cable from affecting the normal use of the electromagnetic sensor, thereby ensuring the accuracy of the electromagnetic sensor monitoring results.

[0054] During the process of the device moving to the right, the detector on the right U-shaped frame 5 always measures the distance between it and the adjacent cross arm. When the detector on the right U-shaped frame 5 reaches the specified value (that is, when the specified distance between the detector and the cross arm is reached), the control terminal starts the dual-axis motor 6 in reverse, and the output shaft of the dual-axis motor 6 drives the two push plates 61 to move in the opposite direction. The two push plates 61 respectively drive the telescopic ends of the adjacent first telescopic rods 62 to move in the opposite direction, and then drive the arc-shaped rack 52 and other parts connected thereto to synchronously reset downward (the specific process is opposite to the above-mentioned process of starting the dual-axis motor 6 in the forward direction, but can still be referred to above), so as to avoid affecting the normal movement of the device due to the position of the U-shaped frame 5.

[0055] When the control terminal reversely starts the dual-axis motor 6, the control terminal reversely starts the two first motors 23 on the right side. While the two U-shaped frames 5 move downward, the two movable columns 12 on the right side rotate synchronously (the specific process can be referred to above). After the device completely moves over the crossarm, the control terminal starts the dual-axis motor 6 again, driving the two U-shaped frames 5 and other parts connected thereto to move upward again to a position that cooperates with the cable to continue cleaning the dust attached to the cable.

[0056] Considering that the inspection robot is usually powered by a battery during use, if the battery power is low, the inspection robot cannot inspect the cable normally. At the same time, after a period of use, the dust attached to the inspection robot will also have a certain impact on the normal use of the inspection robot. For example, dust attached to the electromagnetic sensor may affect the normal detection results of the electromagnetic sensor, and dust attached to the driving wheel may reduce the friction between the driving wheel and the surface of the cable. Therefore, the present invention makes the following changes:

[0057] Example 3: Based on Example 2, Figure 1 and Figure 9As shown, it also includes a battery life mechanism, which is used to enable the outer shell 1 to work sustainably. The battery life mechanism is arranged on one side of the outer shell 1, and the battery life mechanism includes a fixing plate 7. The fixing plate 7 is located on one side of the outer shell 1, and the fixing plate 7 is fixed to the upper end of the electric pole through a connecting piece. A cleaning box 71 is fixed to the upper side of the fixing plate 7, and a cleaning device and a charger are provided inside the cleaning box 71. The cleaning device and the charger are both electrically connected to the control terminal, and the cleaning device and the charger are both existing devices, which are not shown in the figure. Four electric wheels distributed in a matrix and cooperating with the fixing plate 7 are provided on the lower side of the outer shell 1, and the electric wheels are electrically connected to the control terminal.

[0058] During the above-mentioned installation process of the device, the staff installs the fixing plate 7 on the designated electric pole. When the device moves to the right to a position in contact with the left side of the fixing plate 7, the control terminal starts the four electric wheels on the lower side of the outer shell 1. The four electric wheels on the lower side of the outer shell 1 and the four driving wheels 13 work together to drive the device to move until the four electric wheels on the lower side of the outer shell 1 are all on the fixing plate 7. The control terminal resets the driving wheels 13, the U-shaped frame 5, and the movable column 12 to their initial positions (the specific process can be referred to above), so that the device is separated from the cable.

[0059] Until the device moves to the inside of the cleaning box 71 driven by the four electric wheels, the control terminal shuts down the four electric wheels and transmits the message that the device is now inside the cleaning box 71 to the remote control terminal. The remote control terminal starts the cleaning device inside the cleaning box 71 to clean the dust attached to the device to prevent the dust attached to the device from affecting the normal use of the device. At the same time, the device is charged to avoid insufficient power during the use of the device.

[0060] After the device is charged, the control terminal starts the four electric wheels again, and the four electric wheels drive the device to continue moving. When the device loses contact with the cleaning box 71, the control terminal reconnects the device to the cable. The specific process can be referred to above.

[0061] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A cable online monitoring device for fault identification, comprising an outer shell (1), wherein the outer shell (1) is fixedly connected to a matrix-distributed folding plate (11), wherein the folding plate (11) is rotatably connected to a movable column (12) on a side away from the outer shell (1), wherein a driving wheel (13) and a guide wheel (14) are provided on the movable column (12) via a connecting mechanism, wherein the driving wheel (13) and the adjacent guide wheel (14) are symmetrically distributed, and wherein the device is characterized in that: It also includes symmetrically distributed connecting plates (15), the symmetrically distributed connecting plates (15) are all fixed to the outer shell (1), the connecting plates (15) are slidably connected to a movable plate (16), the movable plate (16) is rotatably connected to a first fixed frame (17) at one end away from the adjacent connecting plate (15), an electric push rod (18) is fixed inside the first fixed frame (17), the telescopic end of the electric push rod (18) is fixed to a second fixed block (4), the second fixed block (4) is rotatably connected to a guide wheel (19), and the opposite sides of the symmetrically distributed first fixed frames (17) are all fixed to electromagnetic inductors, and a tension spring is fixed between the electromagnetic inductor and the adjacent connecting plate (15); The connecting mechanism comprises a threaded rod (2), the threaded rod (2) is rotatably connected to the inside of the adjacent moving column (12), the inside of the moving column (12) is slidably connected to a symmetrically distributed rectangular plate (21), the rectangular plate (21) is threadedly engaged with the adjacent threaded rod (2), the inside of the moving column (12) is slidably connected to a symmetrically distributed first fixed block (22), the first fixed block (22) is provided with a through hole, the threaded rod (2) is located in the through hole of the adjacent first fixed block (22), and the driving wheel (13) and the guide wheel (14) are respectively rotatably connected to the adjacent first fixed block (22), a spring is fixed between the first fixed block (22) and the adjacent rectangular plate (21), a first motor (23) is fixed to one side of the movable column (12), an output shaft of the first motor (23) and the adjacent threaded rod (2) are driven by a gear set, and an adjustment component is provided on the side of the movable column (12) away from the outer shell (1), and the adjustment component is used to change the position of the adjacent movable column (12); The regulating assembly includes a first liquid storage ring (72), the first liquid storage ring (72) is fixed to the inside of the adjacent movable column (12), the first liquid storage ring (72) is sealingly and slidingly connected to a movable ring (73), the inside of the first liquid storage ring (72) is fixed with a spring fixed to the adjacent movable ring (73), the movable ring (73) is squeezed and matched with the adjacent first fixed block (22), the folding plate (11) is rotatably connected to the side of the adjacent first fixed frame (17), the second liquid storage ring (74) is connected to the adjacent first liquid storage ring (72) through a connecting pipe, and the second storage ring (74) is connected to the adjacent first liquid storage ring (72). A second limiting plate (75) is fixedly connected to the interior of the liquid ring (74); a connecting shaft between the movable column (12) and the adjacent folding plate (11) passes through the adjacent second liquid storage ring (74) and is rotatably connected thereto; the second liquid storage ring (74) is slidably connected to a second positioning plate (76) fixed to the adjacent connecting shaft; the second limiting plate (75) is slidably connected to the adjacent connecting shaft; the connecting shaft is fixed to the adjacent movable column (12) and is rotatably connected to the adjacent folding plate (11); a movable component for changing the position of the adjacent first fixing frame (17) is provided on a side of the movable plate (16) away from the adjacent connecting plate (15); The moving assembly includes a hydraulic telescopic rod (41), the hydraulic telescopic rod (41) is fixed to the inside of the adjacent first fixed frame (17), a spring is fixed between the telescopic end of the hydraulic telescopic rod (41) and its fixed part, a cavity is provided on the side of the moving plate (16) away from the adjacent connecting plate (15), a first limiting plate (42) is fixed in the cavity of the moving plate (16), the first fixed frame (17) is fixed to a fixed shaft (43), the fixed shaft (43) passes through the moving plate (16) and is rotatably connected thereto, the fixed shaft (43) is fixed to a first positioning plate (44), the first positioning plate (44) slides in the cavity of the adjacent moving plate (16), a gap is provided between the first positioning plate (44) and the adjacent first limiting plate (42), and the fixed part of the hydraulic telescopic rod (41) is connected to the cavity of the adjacent moving plate (16) through a connecting pipe.

2. A cable online monitoring device for fault identification according to claim 1, characterized in that: The second limiting plate (75) and the adjacent second positioning plate (76) are respectively located on both sides of the adjacent connecting pipes, and the first positioning plate (44) and the adjacent first limiting plate (42) are respectively located on both sides of the adjacent connecting pipes.

3. The cable online monitoring device for fault identification according to claim 2, characterized in that: The utility model also includes a cleaning mechanism, which is used to clean the dust on the cable surface, and the cleaning mechanism is arranged on both sides of the outer shell (1). The cleaning mechanism includes a symmetrically distributed U-shaped frame (5), and the U-shaped frame (5) is limitedly slidably connected to one side of the outer shell (1). The U-shaped frame (5) is provided with a detector, and one side of the U-shaped frame (5) is rotatably connected to a centrally symmetrically distributed arc plate (51), and two adjacent arc plates (51) are hinged, and the arc plates (51) are rotated. The arc-shaped rack (52) is dynamically connected, two adjacent arc-shaped racks (52) are symmetrically distributed, the two adjacent arc-shaped racks (52) are hinged, a cleaning brush is provided inside the arc-shaped rack (52), one of the arc-shaped plates (51) symmetrically distributed at the center is fixedly connected to a second motor (53), the output shaft of the second motor (53) is fixedly connected to a gear meshing with the adjacent arc-shaped rack (52), and the outer shell (1) is provided with a trigger component for changing the position of the arc-shaped rack (52).

4. The cable online monitoring device for fault identification according to claim 3, characterized in that: The trigger assembly includes a dual-axis motor (6), the dual-axis motor (6) is fixed to the lower side of the outer shell (1), the outer shell (1) is slidably connected to a symmetrically distributed push plate (61), the dual-axis motor (6) is provided with two output shafts, the output shafts of the dual-axis motor (6) are fixed to a screw, the push plate (61) is threadedly connected to the adjacent screw, the outer shell (1) is fixed to a first telescopic rod (62) distributed in a matrix, the telescopic end of the first telescopic rod (62) is fixed to the adjacent push plate (61), and the outer shell (1) is provided with a matrix. The outer shell (1) has grooves distributed in an array, a liquid storage tube (63) is fixedly connected in the groove of the outer shell (1), the liquid storage tube (63) is communicated with the fixed portion of the adjacent first telescopic rod (62) through a connecting tube, the interior of the liquid storage tube (63) is slidably connected to a push plate (65), the push plate (65) is fixedly connected to an arc-shaped baffle (64), the arc-shaped baffle (64) is telescopic, the telescopic end of the arc-shaped baffle (64) is limitedly slidably connected to the adjacent liquid storage tube (63), and the liquid storage tube (63) is provided with a slide groove that slidably cooperates with the adjacent push plate (65).

5. The cable online monitoring device for fault identification according to claim 4, characterized in that: The hinge axis of the arc-shaped rack (52) is concentric with the hinge axis of the adjacent arc-shaped plate (51), the curvature of the two adjacent arc-shaped racks (52) is the same, and the arc-shaped rack (52) is in a semicircular ring shape.

6. The cable online monitoring device for fault identification according to claim 5, characterized in that: A second telescopic rod (66) is fixedly connected to one side of the push plate (65) close to the adjacent U-shaped frame (5), the telescopic end of the second telescopic rod (66) is fixedly connected to the adjacent U-shaped frame (5), a spring is fixedly connected between the fixed portion of the second telescopic rod (66) and the adjacent U-shaped frame (5), an end of the U-shaped frame (5) away from the adjacent second telescopic rod (66) is inlaid with a hydraulic push rod (67), the telescopic end of the hydraulic push rod (67) is fixedly connected to a second fixed frame (68), the second fixed frame (68) is slidably matched with the adjacent U-shaped frame (5), the fixed portion of the hydraulic push rod (67) is connected to the fixed portion of the adjacent second telescopic rod (66) through a connecting pipe, and the end of the second fixed frame (68) away from the adjacent U-shaped frame (5) is hinged to a hinge column slidably matched with the adjacent arc plate (51).

7. The cable online monitoring device for fault identification according to claim 6, characterized in that: The battery-powered electric vehicle further comprises a battery-powered electric vehicle (1), wherein the battery-powered electric vehicle (1) is configured to enable the outer shell (1) to operate continuously. The battery-powered electric vehicle (1) is disposed on one side of the outer shell (1), and comprises a fixing plate (7). The fixing plate (7) is located on one side of the outer shell (1), and the fixing plate (7) is fixed to the upper end of the electric pole via a connecting piece. A cleaning box (71) is fixed to the upper side of the fixing plate (7), and a cleaning device and a charger are disposed inside the cleaning box (71). Electric wheels distributed in a matrix and cooperating with the fixing plate (7) are disposed on the lower side of the outer shell (1).

Images