A device for accurately capturing and locating fault points on power transmission lines

Abstract

The present invention relates to the field of circuit fault location technology, specifically a device for accurately capturing and locating fault points on power transmission lines, comprising a drone body, the drone body being used to drive the entire device to fly and move, a mounting plate being fixedly mounted on the bottom surface of the drone body, an infrared thermal imager being fixedly connected to the bottom surface of the drone body, two guide mechanisms being symmetrically fixed to the bottom surface of the mounting plate for increasing the stability of the drone body, and a detection mechanism being fixedly connected to the top surface of the mounting plate for detecting damage to the cable sheath. In the present invention, two adjacent markers are bonded and fixedly sleeved on the outside of the cable by welding components, facilitating the accurate capture and positioning of the fault point detected by the infrared thermal imager and the detection mechanism, thereby facilitating ground personnel to visually and clearly see the fault point of the cable, thereby reducing the time for personnel to troubleshoot the cable and improving the efficiency of cable inspections.

Description

Technical Field

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

[0002] Transmission lines are the lines used to transmit electrical energy. They are a vital component of the power system, connecting power plants and load centers, enabling the development and utilization of electrical energy beyond geographical constraints. Transmission lines can be categorized by their structure as overhead transmission lines and underground transmission lines. Overhead transmission lines are constructed from towers, conductors, insulators, and other components and are erected above ground. Underground transmission lines primarily use cables and are laid underground or underwater.

[0003] Currently, for overhead transmission lines, since the cables are installed relatively high, it is difficult for staff 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, since the cable is installed relatively high, it is difficult for staff standing on the ground to clearly see the cable fault point, and staff 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 fault points on a power transmission line, so as 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 on 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 to the infrared thermal imager;

[0009] Two guide mechanisms are symmetrically fixed to 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 to mark the cable fault point. The marking mechanism includes a moving component. Inside the moving component, there are multiple marking pieces for marking the cable fault point. On one side of the moving component, there is a welding component for fixing two adjacent marking pieces on the outer side of the cable.

[0012] Furthermore, the moving component includes a rectangular frame two fixedly connected to the bottom surface of the mounting plate. Between the two short side surfaces inside the rectangular frame two, there is a rotatable double-headed screw two. Both ends of the outer wall of the double-headed screw two penetrate and are screwed with connecting plates. The bottom end of the connecting plate is fixedly connected with a rectangular sleeve for placing the marking piece. One end of the rectangular frame two is fixedly connected with a motor three. The output end of the motor three penetrates the rectangular frame two and is fixedly connected with the double-headed screw two.

[0013] Furthermore, on one side surface of the rectangular sleeve, there is a single-headed electric push rod. The output end of the single-headed electric push rod is inside the rectangular sleeve at the corresponding position. The marking piece includes a clamping ring made of plastic material. The bottom end of the clamping ring is fixedly connected with a ribbon. The bottom end of the ribbon is fixedly connected with a counterweight.

[0014] Furthermore, a through hole for the 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. On one side of the heating block, there is a fixed pipe. At the opposite ends of the two fixed pipes, there are contact heads fixedly connected.

[0016] Furthermore, on the side surface of one of the rectangular sleeves, there are two symmetrically arranged fixed blocks. On the outer wall of the fixed pipe, there is a fixed plate. A double-headed electric push rod is fixedly penetrated between the two fixed blocks. The two output ends of the double-headed electric push rod are respectively fixedly connected with the fixed plate at the corresponding position.

[0017] Furthermore, the guiding mechanism includes a rectangular frame one fixedly connected to the bottom surface of the mounting plate. Between the two short side surfaces inside the rectangular frame one, there is a rotatable double-headed screw one. Both ends of the outer wall of the double-headed screw one penetrate and are screwed with moving plates. The bottom end of the moving plate is fixedly connected with a U-shaped frame. Between the opposite side surfaces inside the U-shaped frame, there is a rotatable roller. On one side surface of the rectangular frame one, there is a motor one. The output end of the motor one penetrates the side surface of the rectangular frame one and is fixedly connected with the double-headed screw one.

[0018] Furthermore, the detection mechanism includes an annular shell located below the mounting plate. Inside the annular shell, there is a sliding tooth ring. Both the tooth ring and the outer wall of the annular shell are provided with gaps. On the inner wall of the tooth ring, there are multiple cameras fixedly connected at equal angles in a circular shape.

[0019] Further, 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 an output end of the second motor is fixedly connected with a gear meshing with the toothed ring.

[0020] Further, 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 a sliding hole for multiple cameras to penetrate and slide is 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. The adjacent two marking parts are bonded and fixedly sleeved outside the cable through the welding assembly, so as to accurately capture and locate 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 inspection time of the staff and improving the efficiency of cable inspection;

[0023] 2. By fixing ribbons on the outside of the snap ring and fixing counterweights at the bottom ends of the ribbons, it is possible to prevent the multiple ribbons from being wound together when the UAV body is flying, and the ribbons are brightly colored, 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 the heating of the two heating blocks, so that the two melted snap rings are bonded together and fixedly sleeved outside the cable, thereby limiting the ribbons and preventing the 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. By driving the first motor, the two rollers can be moved closer to 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. By driving the two second motors, the two gears rotate in the same direction, and the two gears rotating in the same direction make the toothed ring slide in the annular shell, and the sliding toothed ring can drive multiple 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. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0031] Figure 5 It is a schematic structural diagram 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] 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 component;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 part;521. Snap ring;522. Ribbon;523. Counterweight;53. Welding component;531. Heating block;532. Fixed tube;533. Contact;534. Fixed plate;535. Double-head electric push rod. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] See also Figure 1-8In an embodiment of the present invention, a device for accurately capturing and locating a fault point on a power transmission line 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 damage to 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 provided on one side of the moving component 51.

[0038] Specifically, first, multiple marking members 52 are placed in the moving component 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 component 53 is first heated, and then the two adjacent marking members 52 are controlled to move toward the cable by the moving component 51 until the side of the marking member 52 is in close contact with the welding component 53, and the side of the marking member 52 is melted by the welding component 53, and then the welding component 53 is removed and the two adjacent marking members 52 are controlled to move close to each other by the moving component 51. , until the two markers 52 are in close contact. Since the side of the marker 52 is melted, the two adjacent markers 52 are in close contact and will be bonded together and fixed 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 of the cable. If a fault is detected again, the two adjacent markers 52 can be fixed on the outside of the cable according to the above operation method. When the staff sees the marker 52, the cable can be repaired, and the two welded markers 52 can be removed from the cable before maintenance for next use. The device bonds and fixes the two adjacent markers 52 on the outside of the cable through the welding assembly 53, which facilitates the accurate capture and positioning of the fault point detected by the infrared thermal imager 21 and the detection mechanism 4, so that the staff standing on the ground can clearly see the fault point of the cable, thereby reducing the staff's cable troubleshooting time and improving the efficiency of cable inspection.

[0039] Example 1

[0040] like Figure 6 and Figure 7 As shown, in this embodiment, the moving assembly 51 includes a rectangular frame 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 511. A connecting plate 512 is screwed through both ends of the outer wall of the bidirectional screw rod 2. The bottom end of the connecting plate 512 is fixedly connected to a rectangular sleeve 513 for accommodating the marking member 52. One end of the rectangular frame 511 is fixedly connected to a motor 3 514. The output end of the motor 3 514 passes through the rectangular frame 511 and is fixedly connected to the bidirectional screw rod 2. A single-head electric push rod 515 is fixedly connected to one side of the rectangular sleeve 513. The 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 plastic snap ring 521. The bottom end of the snap ring 521 is fixedly connected to a ribbon 522. The bottom end of the ribbon 522 is fixedly connected to a counterweight 523. The inner bottom surface of the rectangular sleeve 513 is penetrated by a through hole 516 for the ribbon 522 to slide through.

[0041] In this embodiment, the ribbon 522 is first fixed to the snap ring 521 by glue (hot melt glue or universal glue), and then multiple snap rings 521 are placed in the two rectangular sleeves 513 respectively, and the ribbon 522 passes through the through hole 516 and is kept in a vertical state under the action of the gravity of the counterweight block 523, which can prevent the multiple ribbons 522 from being entangled with each other during the flight of the drone body 1. When the infrared thermal imager 21 and the detection mechanism 4 detect that there is a fault in the cable, the drone 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 the welding assembly 53, the drive 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. Due to the single-head The output end of the electric push rod 515 is located inside the rectangular sleeve 513 at the corresponding position. Therefore, the activation 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. Due to the heating of the welding assembly 53, the side of the clamping ring 521 can be melted. When it melts to a certain extent, the welding assembly 53 is removed, and then the two single-head electric push rods 515 are activated to make the two melted clamping rings 521 in close contact. At this time, the two tightly contacted 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 symmetric fixed blocks 517 are fixedly connected to the side of one rectangular sleeve 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 the two fixed 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 control. When it is necessary to melt the side 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 control, so that the side 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 bidirectional lead screw one is rotatably connected between the two short side surfaces inside the rectangular frame one 31. The outer walls of both ends of the bidirectional lead screw one penetrate and are 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 bidirectional lead screw one.

[0046] In this embodiment, the two rollers 34 can be driven to approach each other by 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 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. The outer walls of both the toothed ring 42 and the annular shell 41 are provided with gaps. A plurality of cameras 43 are fixedly connected to the inner wall of the toothed ring 42 at equal angles in a circular pattern. Two symmetric transmission holes are penetrated through the outer wall of the annular shell 41. A second motor 44 is provided 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 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 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 penetrated through the inner wall of the annular shell 41.

[0049] In this embodiment, the two second motors 44 are driven to make the two gears 45 rotate 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 cable outer skin 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-restrictive. 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 claims involved.

[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 on power transmission lines, characterized in that: Comprising: An unmanned aerial vehicle body (1) for driving the entire device to fly and move; A mounting plate (2) fixedly installed on the bottom surface of the unmanned aerial vehicle body (1), and an infrared thermal imager (21) is fixedly connected to the bottom surface of the unmanned aerial vehicle body (1); Two guiding mechanisms (3) symmetrically fixed to the bottom surface of the mounting plate (2) for increasing the stability of the unmanned aerial vehicle body (1). The guiding mechanism (3) includes a rectangular frame one (31) fixedly connected to the bottom surface of the mounting plate (2). A bidirectional screw one is rotatably connected between the two short side surfaces inside the rectangular frame one (31). Both ends of the outer wall of the bidirectional screw one penetrate and are 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 to the bidirectional screw one; A detection mechanism (4) fixedly connected to the top surface of the mounting plate (2) for detecting damage to the outer skin of the cable. 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). Both the toothed ring (42) and the outer wall of the annular shell (41) are penetrated and provided with gaps. A plurality of cameras (43) are fixedly connected to the inner wall of the toothed ring (42) at equal angles in a circular shape; A marking mechanism (5) arranged on the bottom surface of the mounting plate (2) for marking the cable fault point. The marking mechanism (5) includes a moving component (51). A plurality of marking parts (52) for marking the cable fault point are arranged inside the moving component (51). A welding component (53) for fixing two adjacent marking parts (52) on the outer side of the cable is arranged on one side of the moving component (51); The moving component (51) includes a rectangular frame two (511) fixedly connected to the bottom surface of the mounting plate (2). A bidirectional screw two is rotatably connected between the two short side surfaces inside the rectangular frame two (511). Both ends of the outer wall of the bidirectional screw two penetrate and are screwed with an adapter plate (512). The bottom end of the adapter plate (512) is fixedly connected with a rectangular sleeve (513) for placing the marking part (52). A motor three (514) is fixedly connected to one end of the rectangular frame two (511). The output end of the motor three (514) penetrates the rectangular frame two (511) and is fixedly connected to the bidirectional screw two. A single-headed electric push rod (515) is fixedly connected to one side surface of the rectangular sleeve (513). The output end of the single-headed electric push rod (515) is located inside the rectangular sleeve (513) at the corresponding position. The marking part (52) includes a snap ring (5) made of plastic. The bottom end of the snap ring (521) is fixedly connected with a color ribbon (522). The bottom end of the color ribbon (522) is fixedly connected with a counterweight (523).

2. The device for accurately capturing and locating a fault point on a power transmission line according to claim 1, characterized in that: A through hole (516) for the color ribbon (522) to penetrate and slide is penetrated and opened on the inner bottom surface of the rectangular sleeve (513).

3. The device for accurately capturing and locating a fault point on a power transmission line according to claim 2, characterized in that: The welding assembly (53) comprises two heating blocks (531) symmetrically arranged in an upper and lower direction, 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).

4. The device for accurately capturing and locating a fault point on a power transmission line according to claim 3, 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.

5. The device for accurately capturing and locating a transmission line fault point according to claim 4, characterized in that: Two symmetrical transmission holes are formed through the outer wall of the annular shell (41), and 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) meshing with the gear ring (42).

6. The device for accurately capturing and locating a fault point on a power transmission line according to claim 5, characterized in that: A shaped frame (46) is fixedly connected between the two motors (44), and the top surface of the shaped frame (46) is fixedly connected to two symmetrical connecting plates (47) fixedly connected to the mounting plate (2). The outer wall of the annular shell (41) is fixedly connected to two symmetrical connecting plates (48) fixedly connected to the mounting plate (2), and the inner wall of the annular shell (41) is provided with sliding holes (49) for multiple cameras (43) to slide through.

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