Power transmission line fault point accurate capturing and positioning device

Abstract

The invention relates to the technical field of circuit fault positioning, in particular to a power transmission line fault point accurate capturing and positioning device which comprises an unmanned aerial vehicle body, the unmanned aerial vehicle body is used for driving the whole device to fly and move, a mounting plate is fixedly mounted on the bottom surface of the unmanned aerial vehicle body, and an infrared thermal imager is fixedly connected to the bottom surface of the unmanned aerial vehicle body. The two guide mechanisms are symmetrically fixed to the bottom face of the mounting plate and used for improving the stability of the unmanned aerial vehicle body, and the detection mechanism is fixedly connected to the top face of the mounting plate and used for detecting damage of a cable sheath. According to the cable fault detection device, the two adjacent marking pieces are bonded and fixedly arranged on the outer side of the cable in a sleeving manner through the welding assembly, so that a fault point detected by the infrared thermal imager and the detection mechanism can be accurately captured and positioned, and a worker standing on the ground can visually and clearly see the fault point of the cable; therefore, the cable checking time of workers can be reduced, and the cable inspection efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit fault positioning, and in particular to a device for accurately capturing and positioning a fault point of a power transmission line. Background Art

[0002] Transmission lines refer to lines used to transmit electric energy. They are an important part of the power system, connecting power plants and load centers, allowing the development and utilization of electric energy to transcend geographical limitations. Transmission lines can be divided into overhead transmission lines and underground transmission lines according to their structural form. Overhead transmission lines are composed of line towers, conductors, insulators, etc., and are erected on the ground; underground transmission lines mainly use cables and are laid underground or underwater.

[0003] At present, for overhead power transmission lines, since the cables are installed relatively high, it is difficult for workers to maintain and inspect the cables. Usually, an infrared thermal imager is installed on a drone, and the drone flies along the length of the cable. The temperature of the cable is then detected by the infrared thermal imager. If the temperature of a certain section of the cable is detected to be too high, it means that this section of the cable has a fault. Although the cable fault point can now be marked with a marker or spray paint, it is difficult for workers standing on the ground to clearly see the cable fault point because the cable is installed relatively high, and workers still need to check it section by section. Summary of the invention

[0004] The purpose of the present invention is to provide a device for accurately capturing and locating a fault point of a power transmission line to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for accurately capturing and locating a fault point of a power transmission line, comprising:

[0007] The drone body is used to drive the entire device to fly and move;

[0008] A mounting plate is mounted and fixed on the bottom surface of the drone body, and the bottom surface of the drone body is fixedly connected with an infrared thermal imager;

[0009] Two guide mechanisms are symmetrically fixed on the bottom surface of the mounting plate to increase the stability of the drone body;

[0010] The detection mechanism is fixedly connected to the top surface of the mounting plate and is used to detect damage to the cable sheath;

[0011] The marking mechanism is arranged on the bottom surface of the mounting plate and is used for marking the cable fault point. The marking mechanism includes a moving component. A plurality of marking parts for marking the cable fault point are arranged inside the moving component. A welding component for fixing two adjacent marking parts on the outer side of the cable is arranged on one side of the moving component.

[0012] Furthermore: The moving component includes a second rectangular frame fixedly connected to the bottom surface of the mounting plate. A second bidirectional lead screw is rotatably connected between the two short-side side surfaces inside the second rectangular frame. Both ends of the outer wall of the second bidirectional lead screw penetrate and are screwed with a connecting plate. A rectangular sleeve for placing the marking part is fixedly connected to the bottom end of the connecting plate. One end of the second rectangular frame is fixedly connected with a third motor. The output end of the third motor penetrates the second rectangular frame and is fixedly connected to the second bidirectional lead screw.

[0013] Furthermore: A single-headed electric push rod is fixedly connected to one side surface of the rectangular sleeve. The output end of the single-headed electric push rod is located inside the rectangular sleeve at the corresponding position. The marking part includes a snap ring made of plastic material. A color ribbon is fixedly connected to the bottom end of the snap ring. A counterweight is fixedly connected to the bottom end of the color ribbon.

[0014] Furthermore: A through hole for the color ribbon to penetrate and slide is formed through the inner bottom surface of the rectangular sleeve.

[0015] Furthermore: The welding component includes two heating blocks arranged symmetrically up and down. A fixed pipe is fixedly connected to one side of the heating block. Contact heads are fixedly connected to one ends of the two fixed pipes facing each other.

[0016] Furthermore: Two symmetrical fixing blocks are fixedly connected to the side surface of one of the rectangular sleeves. A fixing plate is fixedly connected to the outer wall of the fixed pipe. A double-headed electric push rod is fixedly penetrated between the two fixing blocks. The two output ends of the double-headed electric push rod are respectively fixedly connected to the fixing plates at the corresponding positions.

[0017] Furthermore: The guiding mechanism includes a first rectangular frame fixedly connected to the bottom surface of the mounting plate. A first bidirectional lead screw is rotatably connected between the two short-side side surfaces inside the first rectangular frame. Moving plates penetrate and are screwed on both ends of the outer wall of the first bidirectional lead screw. A U-shaped frame is fixedly connected to the bottom end of the moving plate. A roller is rotatably connected between the opposite side surfaces inside the U-shaped frame. A first motor is fixedly connected to one side surface of the first rectangular frame. The output end of the first motor penetrates the side surface of the first rectangular frame and is fixedly connected to the first bidirectional lead screw.

[0018] Furthermore: The detection mechanism includes an annular shell located below the mounting plate. A toothed ring is slidably connected inside the annular shell. Notches are formed through the outer walls of the toothed ring and the annular shell. A plurality of cameras are fixedly connected to the inner wall of the toothed ring at equal angles in a ring shape.

[0019] Furthermore, two symmetrical transmission holes are penetrated and formed in the outer wall of the annular shell, and a second motor is arranged at one side of the annular shell corresponding to the transmission holes, and the output end of the second motor is fixedly connected with a gear meshing with the toothed ring.

[0020] Furthermore, a U-shaped frame is fixedly connected between the two second motors, two symmetrical connecting plates one fixedly connected with the mounting plate are fixedly connected to the top surface of the U-shaped frame, two symmetrical connecting plates two fixedly connected with the mounting plate are fixedly connected to the outer wall of the annular shell, and sliding holes for a plurality of cameras to penetrate and slide are penetrated and formed in the inner wall of the annular shell.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. Adjacent two marking parts are bonded and fixedly sleeved outside the cable through the welding assembly, so as to facilitate accurately capturing and positioning the fault points detected by the infrared thermal imager and the detection mechanism, so that the staff standing on the ground can intuitively and clearly see the fault points of the cable, thereby reducing the cable troubleshooting time of the staff and improving the efficiency of cable inspection;

[0023] 2. Color ribbons are fixed on the outer side of the snap ring, and counterweights are fixed at the bottom ends of the color ribbons, so as to prevent the multiple color ribbons from being wound together when the UAV body is flying, and the color ribbons are bright in color, so that the staff standing on the ground can see the fault points of the cable at a glance;

[0024] 3. The side surfaces of the snap rings can be melted by heating of the two heating blocks, so as to facilitate bonding the two melted snap rings together and fixedly sleeving them outside the cable, thereby limiting the color ribbons and preventing the color ribbons and the snap rings from shifting in position under the action of wind, so that the positions of the cable fault points can be accurately marked;

[0025] 4. The two rollers can be driven by the first motor to approach each other until the two rollers clamp the cable, so that the UAV body can fly more stably along the length direction of the cable;

[0026] 5. The two motors two drive the two gears to rotate in the same direction, the two gears rotating in the same direction make the toothed ring slide in the annular shell, and the sliding toothed ring can drive a plurality of cameras at corresponding positions to rotate along the axis of the toothed ring, so as to detect whether the outer skin of the cable is damaged without dead angles. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the present invention;

[0028] Figure 2 is the schematic diagram of the mounting plate in the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the guide mechanism in the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the detection mechanism in the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the marking mechanism in the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the mobile component in the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the marking member in the present invention;

[0034] Figure 8 It is a schematic diagram of the welding assembly structure in the present invention.

[0035] In the figure: 1. UAV body; 2. Mounting plate; 21. Infrared thermal imager; 3. Guide mechanism; 31. Rectangular frame 1; 32. Moving plate; 33. Frame; 34. Roller; 35. Motor 1; 4. Detection mechanism; 41. Ring shell; 42. Gear ring; 43. Camera; 44. Motor 2; 45. Gear; 46. Frame; 47. Connecting plate 1; 48. Connecting plate 2; 49. Slide hole; 5. Marking mechanism ; 51. Moving assembly; 511. Rectangular frame 2; 512. Connecting plate; 513. Rectangular sleeve; 514. Motor 3; 515. Single-head electric push rod; 516. Through hole; 517. Fixed block; 52. Marking piece; 521. Snap ring; 522. Ribbon; 523. Counterweight; 53. Welding assembly; 531. Heating block; 532. Fixed tube; 533. Contact; 534. Fixed plate; 535. Double-head electric push rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-8In an embodiment of the present invention, a transmission line fault point accurate capture and positioning device includes a drone body 1, a mounting plate 2, two guide mechanisms 3, a detection mechanism 4 and a marking mechanism 5. The drone body 1 is used to drive the entire device to fly and move. The mounting plate 2 is installed and fixed on the bottom surface of the drone body 1. The bottom surface of the drone body 1 is fixedly connected with an infrared thermal imager 21. The two guide mechanisms 3 are symmetrically fixed on the bottom surface of the mounting plate 2 to increase the stability of the drone body 1. The detection mechanism 4 is fixedly connected to the top surface of the mounting plate 2 to detect the damage of the cable sheath. The marking mechanism 5 is arranged on the bottom surface of the mounting plate 2 to mark the cable fault point. The marking mechanism 5 includes a moving component 51. A plurality of marking members 52 for marking the cable fault point are arranged inside the moving component 51. A welding component 53 for fixing two adjacent marking members 52 to the outside of the cable is arranged on one side of the moving component 51.

[0038] Specifically, firstly, a plurality of marking members 52 are placed in the moving assembly 51, and then the drone body 1 is started to drive the two guide mechanisms 3, the detection mechanism 4 and the marking mechanism 5 to fly and move to the top of the cable, and then the height of the drone body 1 is controlled and the two guide mechanisms 3 clamp the cable, and the cable is located inside the detection mechanism 4, and the drone body 1 is controlled to move along the length direction of the cable, and at the same time, the infrared thermal imager 21 and the detection mechanism 4 are started. When the infrared thermal imager 21 detects that the temperature of a certain section of the cable is too high or the detection mechanism 4 detects that the outer wall of the cable is damaged, the welding assembly 53 is first heated, and then the moving assembly 51 is used to control the two adjacent marking members 52 to move toward the cable until the side of the marking member 52 is in close contact with the welding assembly 53, and the side of the marking member 52 is melted by the welding assembly 53, and then the welding assembly 53 is removed and the two adjacent marking members 52 are controlled to move closer to each other by the moving assembly 51. , until the two marking pieces 52 are in close contact. Since the side of the marking piece 52 is melted, the two adjacent marking pieces 52 are in close contact and will be bonded together and fixedly sleeved on the outside of the cable (similar to the welding principle of water pipes). Then continue to control the drone body 1 to move along the length direction of the cable. If a fault is detected again, the two adjacent marking pieces 52 can be fixed to the outside of the cable according to the above operation method. When the staff sees the marking piece 52, the cable can be repaired, and the two welded marking pieces 52 can be removed from the cable before maintenance for next use. The device bonds and fixes the two adjacent marking pieces 52 on the outside of the cable through the welding assembly 53, which is convenient for accurately capturing and locating the fault point detected by the infrared thermal imager 21 and the detection mechanism 4, so that the staff standing on the ground can intuitively and clearly see the fault point of the cable, thereby reducing the staff's cable troubleshooting time and improving the efficiency of cable inspection.

[0039] Embodiment 1

[0040] like Figure 6 and Figure 7 As shown, in this embodiment, the moving assembly 51 includes a rectangular frame 2 511 fixedly connected to the bottom surface of the mounting plate 2, a bidirectional screw rod 2 is rotatably connected between the two short sides of the inner side of the rectangular frame 2 511, and a connecting plate 512 is screwed through the outer wall of the bidirectional screw rod 2 at both ends, and a rectangular sleeve 513 for placing the marking member 52 is fixedly connected to the bottom end of the connecting plate 512, and a motor 3 514 is fixedly connected to one end of the rectangular frame 2 511, and the output end of the motor 3 514 penetrates the rectangular frame 2 511 and is fixedly connected to the bidirectional screw rod 2, and a single-head electric push rod 515 is fixedly connected to one side of the rectangular sleeve 513, and the output end of the single-head electric push rod 515 is located inside the rectangular sleeve 513 at a corresponding position, and the marking member 52 includes a plastic clamp 521, and a ribbon 522 is fixedly connected to the bottom end of the clamp 521, and a counterweight 523 is fixedly connected to the bottom end of the ribbon 522. A through hole 516 for the ribbon 522 to slide through is opened through the inner bottom surface of the rectangular sleeve 513.

[0041] In this embodiment, the ribbon 522 is first fixed to the clamping ring 521 by glue (hot melt glue or universal glue), and then a plurality of clamping rings 521 are respectively placed in the two rectangular sleeves 513, and the ribbon 522 passes through the through hole 516 and is kept in a vertical state under the gravity of the counterweight block 523, so as to prevent the plurality of ribbons 522 from being entangled with each other during the flight of the UAV body 1. When the infrared thermal imager 21 and the detection mechanism 4 detect that the cable is faulty, the UAV body 1 is continued to fly forward for a certain distance so that the fault point of the cable is located between the two rectangular sleeves 513, and then the two rectangular sleeves 513 are driven by the motor three 514 to approach each other. When the rectangular sleeves 513 are about to contact with the welding assembly 53, the driving of the motor three 514 is stopped, and the welding assembly 53 is heated, and then the two single-head electric push rods 515 are started. The output end of the electric push rod 515 is located inside the rectangular sleeve 513 at the corresponding position. Therefore, the start of the single-head electric push rod 515 can push the multiple clamping rings 521 in the rectangular sleeve 513 at the corresponding position toward the cable until the clamping ring 521 close to the cable is in close contact with the welding assembly 53. The heating of the welding assembly 53 can melt the side of the clamping ring 521. When it melts to a certain extent, the welding assembly 53 is removed, and then the two single-head electric push rods 515 are started to make the two melted clamping rings 521 in close contact. At this time, the two tightly contacting clamping rings 521 are bonded together and fixed on the outside of the cable. Then, the output ends of the two single-head electric push rods 515 are restored to their original positions, and the two rectangular sleeves 513 are restored to their original positions by the reverse rotation of the motor three 514. Then, the drone body 1 continues to fly and move to detect other areas of the cable.

[0042] As Figure 8 shown, in this embodiment, the welding assembly 53 includes two heating blocks 531 symmetrically arranged up and down. One side of the heating block 531 is fixedly connected with a fixed pipe 532. One end of the two fixed pipes 532 facing each other is fixedly connected with a contact 533. Two symmetrical fixing blocks 517 are fixedly connected to the side surface of one of the rectangular sleeves 513. A fixing plate 534 is fixedly connected to the outer wall of the fixed pipe 532. A double-headed electric push rod 535 is fixedly arranged through between the two fixing blocks 517. The two output ends of the double-headed electric push rod 535 are respectively fixedly connected to the fixing plates 534 at the corresponding positions.

[0043] In this embodiment, the heating wire in the heating block 531 is connected to the contact 533 at the corresponding position through a wire, and one of the wires is connected to the circuit in the drone body 1. The staff can control the power supply to the wire through the remote controller. When it is necessary to melt the side surface of the snap ring 521, the two contacts 533 are closely contacted by the start of the double-headed electric push rod 535. At this time, the wires in the two heating blocks 531 are connected. Then, the two heating blocks 531 are controlled to heat through the remote controller, so that the side surface of the snap ring 521 is melted. Then, by starting the double-headed electric push rod 535, the two heating blocks 531 are separated from each other. Then, by starting the two single-headed electric push rods 515, the two melted snap rings 521 are closely contacted and bonded together.

[0044] Embodiment Two

[0045] As Figure 3 shown, in this embodiment, the guiding mechanism 3 includes a rectangular frame one 31 fixedly connected to the bottom surface of the mounting plate 2. A two-way lead screw one is rotatably connected between the two short side surfaces inside the rectangular frame one 31. The outer walls at both ends of the two-way lead screw one are respectively penetrated and screwed with a moving plate 32. The bottom end of the moving plate 32 is fixedly connected with a U-shaped frame 33. A roller 34 is rotatably connected between the opposite side surfaces inside the U-shaped frame 33. A motor one 35 is fixedly connected to one side surface of the rectangular frame one 31. The output end of the motor one 35 penetrates the side surface of the rectangular frame one 31 and is fixedly connected with the two-way lead screw one.

[0046] In this embodiment, the two rollers 34 can be driven to approach each other through the driving of the motor one 35 until the two rollers 34 clamp the cable. Therefore, the drone body 1 can fly more stably along the length direction of the cable.

[0047] Embodiment Three

[0048] As Figure 4As shown in the figure, in this embodiment, the detection mechanism 4 includes an annular shell 41 located below the mounting plate 2. A toothed ring 42 is slidably connected inside the annular shell 41. Notches are formed through the outer walls of both the toothed ring 42 and the annular shell 41. A plurality of cameras 43 are fixedly connected to the inner wall of the toothed ring 42 at equal angular intervals in a circular pattern. Two symmetric transmission holes are formed through the outer wall of the annular shell 41. A second motor 44 is provided on one side of the annular shell 41 corresponding to the transmission holes. The output end of the second motor 44 is fixedly connected to a gear 45 that meshes with the toothed ring 42. A U-shaped frame 46 is fixedly connected between the two second motors 44. Two symmetric connecting plates one 47 that are fixedly connected to the mounting plate 2 are fixedly connected to the top surface of the U-shaped frame 46. Two symmetric connecting plates two 48 that are fixedly connected to the mounting plate 2 are fixedly connected to the outer wall of the annular shell 41. A sliding hole 49 for the plurality of cameras 43 to penetrate and slide is formed through the inner wall of the annular shell 41.

[0049] In this embodiment, the two second motors 44 are driven to rotate the two gears 45 in the same direction. The two gears 45 rotating in the same direction cause the toothed ring 42 to slide inside the annular shell 41. The sliding toothed ring 42 can drive the plurality of cameras 43 at the corresponding positions to rotate along the axis of the toothed ring 42, so as to detect whether there is damage to the outer skin of the cable without dead angles (the camera 42 is a prior art, and its working principle will not be elaborated here).

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0051] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for accurately capturing and locating fault points of power transmission lines, characterized in that: include: The drone body (1) is used to drive the entire device to fly and move; A mounting plate (2) is mounted and fixed on the bottom surface of the drone body (1), and the bottom surface of the drone body (1) is fixedly connected with an infrared thermal imager (21); Two guide mechanisms (3) are symmetrically fixed on the bottom surface of the mounting plate (2) and are used to increase the stability of the drone body (1); A detection mechanism (4) is fixedly connected to the top surface of the mounting plate (2) and is used to detect damage to the cable sheath; A marking mechanism (5) is arranged on the bottom surface of the mounting plate (2) and is used to mark a cable fault point. The marking mechanism (5) comprises a moving assembly (51). A plurality of marking members (52) for marking cable fault points are arranged inside the moving assembly (51). A welding assembly (53) for fixing two adjacent marking members (52) on the outside of the cable is arranged on one side of the moving assembly (51).

2. The device for accurately capturing and locating a fault point of a power transmission line according to claim 1, characterized in that: The moving assembly (51) comprises a rectangular frame 2 (511) fixedly connected to the bottom surface of the mounting plate (2); a bidirectional screw rod 2 is rotatably connected between the two short side surfaces inside the rectangular frame 2 (511); connecting plates (512) are screwed through both ends of the outer wall of the bidirectional screw rod 2; a rectangular sleeve (513) for placing the marking member (52) is fixedly connected to the bottom end of the connecting plate (512); a motor 3 (514) is fixedly connected to one end of the rectangular frame 2 (511); and the output end of the motor 3 (514) passes through the rectangular frame 2 (511) and is fixedly connected to the bidirectional screw rod 2.

3. The device for accurately capturing and locating a fault point of a power transmission line according to claim 2, characterized in that: A single-head electric push rod (515) is fixedly connected to one side of the rectangular sleeve (513), and an output end of the single-head electric push rod (515) is located inside the rectangular sleeve (513) at a corresponding position. The marking member (52) includes a clamping ring (521) made of plastic material, and a colored ribbon (522) is fixedly connected to the bottom end of the clamping ring (521), and a counterweight block (523) is fixedly connected to the bottom end of the colored ribbon (522).

4. The device for accurately capturing and locating a fault point of a power transmission line according to claim 3, characterized in that: The inner bottom surface of the rectangular sleeve (513) is provided with a through hole (516) for the colored ribbon (522) to slide through.

5. The device for accurately capturing and locating a fault point of a power transmission line according to claim 3, characterized in that: The welding assembly (53) comprises two heating blocks (531) symmetrically arranged up and down, one side of the heating block (531) is fixedly connected to a fixing tube (532), and opposite ends of the two fixing tubes (532) are fixedly connected to contacts (533).

6. The device for accurately capturing and locating a fault point of a power transmission line according to claim 5, characterized in that: Two symmetrical fixing blocks (517) are fixedly connected to the side of one of the rectangular sleeves (513); a fixing plate (534) is fixedly connected to the outer wall of the fixing tube (532); a double-headed electric push rod (535) is fixedly passed through between the two fixing blocks (517); and two output ends of the double-headed electric push rod (535) are respectively fixedly connected to the fixing plates (534) at corresponding positions.

7. The device for accurately capturing and locating a fault point of a power transmission line according to claim 6, characterized in that: The guiding mechanism (3) includes a first rectangular frame (31) fixedly connected to the bottom surface of the mounting plate (2). A first bidirectional lead screw is rotatably connected between the inner short-side sides of the first rectangular frame (31). Both ends of the outer wall of the first bidirectional lead screw penetrate and are screwed with a moving plate (32). The bottom end of the moving plate (32) is fixedly connected to a U-shaped frame (33). A roller (34) is rotatably connected between the opposite inner side surfaces of the U-shaped frame (33). A first motor (35) is fixedly connected to one side surface of the first rectangular frame (31). The output end of the first motor (35) penetrates the side surface of the first rectangular frame (31) and is fixedly connected to the first bidirectional lead screw.

8. The device for accurately capturing and locating a fault point of a power transmission line according to claim 7, characterized in that: The detection mechanism (4) includes an annular shell (41) located below the mounting plate (2). A toothed ring (42) is slidably connected inside the annular shell (41). Notches are respectively formed through the outer walls of the toothed ring (42) and the annular shell (41). A plurality of cameras (43) are fixedly connected to the inner wall of the toothed ring (42) at equal angular intervals in a ring shape.

9. The device for accurately capturing and locating a fault point of a power transmission line according to claim 8, characterized in that: Two symmetric transmission holes are formed through the outer wall of the annular shell (41). A second motor (44) is arranged at one side of the annular shell (41) corresponding to the transmission holes. The output end of the second motor (44) is fixedly connected to a gear (45) meshing with the toothed ring (42).

10. The device for accurately capturing and locating a fault point of a power transmission line according to claim 9, characterized in that: A U-shaped frame (46) is fixedly connected between the two second motors (44). Two symmetric connecting plates one (47) fixedly connected to the mounting plate (2) are fixedly connected to the top surface of the U-shaped frame (46). Two symmetric connecting plates two (48) fixedly connected to the mounting plate (2) are fixedly connected to the outer wall of the annular shell (41). A sliding hole (49) for the plurality of cameras (43) to penetrate and slide is formed through the inner wall of the annular shell (41).

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