High-altitude cable insulation layer fracture detection device

Abstract

The utility model discloses a high-altitude cable insulation layer fracture detection device which comprises a detection unmanned aerial vehicle, protection frames are symmetrically and fixedly connected to the outer side of the detection unmanned aerial vehicle, propellers are arranged in the protection frames, and fixing seats are symmetrically and fixedly connected to the two sides of the detection unmanned aerial vehicle. An ultrasonic detector, a high-frequency partial discharge detector and a laser scanner are used for detecting the fracture of the insulating layer of the cable, and the ultrasonic detector is used for detecting whether bubbles, cracks and other defects exist in the cable or not, so that whether the insulating layer is fractured or not is judged; the high-frequency partial discharge detector is used for detecting the partial discharge phenomenon in a cable insulation layer so as to judge whether the insulation layer is broken or not, the laser scanner is used for accurately measuring the boundary dimension and surface defects of the cable, and therefore the device can replace inconvenience brought by manual handheld operation, and the working efficiency is improved. The aerial cable insulation layer fracture detection efficiency can be effectively improved in a flight detection mode of the unmanned aerial vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable detection equipment, and in particular relates to a device for detecting rupture of an insulation layer of a high-altitude cable. Background Art

[0002] The high-altitude cable insulation layer rupture detection device is a device used to remotely detect the status of the high-voltage cable insulation layer. It can identify damage and defects in the cable insulation layer in a non-contact manner, ensure the safety of power transmission, and reduce power interruptions and safety accidents caused by insulation failures.

[0003] Currently, in the process of detecting insulation cracks in high-altitude cables, a handheld UV imager is generally used to detect suspected damage or cracks in the cables. However, this method requires the operator to look up and hold the UV imager in hand for a long time to detect it. However, this detection method is not only time-consuming and labor-intensive, but also has low detection efficiency and is difficult to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a high-altitude cable insulation layer rupture detection device to solve the problem raised in the above background technology that in the current process of high-altitude cable insulation layer rupture detection, a manual handheld ultraviolet imager is generally used to detect suspected damage or cracks in the high-altitude cable by discharge. However, this method requires the operator to look up and hold the ultraviolet imager in hand for a long time to detect it. However, this detection method is not only time-consuming and laborious, but also has low detection efficiency and is difficult to meet the needs.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-altitude cable insulation layer rupture detection device, comprising a detection drone, a protective frame symmetrically fixedly connected to the outside of the detection drone, a propeller arranged inside the protective frame, fixed seats symmetrically connected on both sides of the detection drone, a connecting arm arranged between the two fixed seats, a rotating seat fixedly connected to the lower end of one side of the connecting arm, a guide platform fixedly connected to the top of the guide platform, a first electric telescopic rod symmetrically fixedly connected to one side of the guide platform, an ultrasonic detector fixedly connected to the top of the guide platform, a high-frequency partial discharge detector fixedly connected to the inside of the connecting arm, a motor arranged at the upper end of one side of the connecting arm, a moving wheel fixedly connected to the output end of the motor, a second electric telescopic rod fixedly connected to the top of the connecting arm, and a laser scanner fixedly connected to the bottom of the output end of the second electric telescopic rod.

[0006] Preferably, a remote control system is fixedly connected to the top of the detection drone.

[0007] Preferably, the connecting arm is rotatably connected to the detection drone via a rotating shaft.

[0008] Preferably, the rotating seat is rotatably connected to the output end of the first electric telescopic rod.

[0009] Preferably, the motor is fixedly connected to the connecting arm by bolts, and the moving wheel is located on the other side of the connecting arm.

[0010] Preferably, the remote control system, ultrasonic detector, high-frequency partial discharge detector and laser scanner are all electrically connected to each other.

[0011] Preferably, the surfaces of the detection drone, the connecting arm, the moving wheel and the second electric telescopic rod are all provided with an insulating layer, and the insulation is made of cross-linked polyethylene.

[0012] Compared with the prior art, the present invention provides a device for detecting the cracking of the insulation layer of an aerial cable, which has the following beneficial effects:

[0013] 1. The utility model provides a high-altitude cable insulation layer rupture detection device. When in use, the drone composed of a detection drone, wings, a protective frame and propellers is used to carry the detection equipment, so that the cable can be observed and detected at close range at high altitude. When flying to the bottom of the high-altitude cable, the first electric telescopic rod is driven to pull back so that the connecting arm is clamped on the outside of the cable, and then the second electric telescopic rod is driven to clamp on the top of the cable, so that the detection device can be stably placed on the outside of the cable, and the cable insulation layer rupture is detected by using an ultrasonic detector, a high-frequency partial discharge detector and a laser scanner. The ultrasonic detector is used to detect whether there are defects such as bubbles and cracks inside the cable, so as to determine whether the insulation layer is ruptured. The high-frequency partial discharge detector is used to detect partial discharge phenomena in the cable insulation layer, so as to determine whether the insulation layer is ruptured. The laser scanner is used to accurately measure the external dimensions and surface defects of the cable. Therefore, the device can replace the inconvenience caused by manual handheld operations, and the flight detection method of the drone can effectively improve the efficiency of the high-altitude cable insulation layer rupture detection.

[0014] 2. The utility model is provided with a motor and a moving wheel. When the device is installed on the outside of the cable for insulation layer detection, the motor is driven to make the moving wheel drive the device located on the outside of the cable to move, so that it can detect while moving, which can greatly improve the efficiency of high-altitude cable insulation layer rupture detection.

[0015] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the axial structure of one side of a high-altitude cable insulation layer crack detection device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the axial structure of the other side of a high-altitude cable insulation layer rupture detection device proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the top view of a device for detecting insulation rupture of an aerial cable proposed in the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of an ultrasonic detector for detecting insulation cracks in high-altitude cables proposed in the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of a laser scanner for detecting insulation cracks in high-altitude cables proposed in the present invention;

[0022] In the figure: detection drone 1, wing 2, protective frame 3, propeller 4, remote control system 5, fixed base 6, connecting arm 7, rotating base 8, guide platform 9, first electric telescopic rod 10, ultrasonic detector 11, high-frequency partial discharge detector 12, motor 13, moving wheel 14, second electric telescopic rod 15, laser scanner 16, rotating shaft 17. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying 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 embodiments described 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.

[0024] See also Figure 1-5The utility model provides a technical solution: a high-altitude cable insulation layer rupture detection device, including a detection drone 1, a protective frame 3 is symmetrically fixedly connected to the outside of the detection drone 1, a propeller 4 is arranged inside the protective frame 3, and a fixed seat 6 is symmetrically fixedly connected to both sides of the detection drone 1. A connecting arm 7 is arranged between the two fixed seats 6, and the lower end of one side of the connecting arm 7 is fixedly connected to a rotating seat 8. The top of the detection drone 1 is fixedly connected to a guide platform 9, and one side of the guide platform 9 is symmetrically fixedly connected to a first electric telescopic rod 10. The top of the guide platform 9 is fixedly connected to an ultrasonic detector 11, and a high-frequency partial discharge detector 12 is fixedly connected to the inside of the connecting arm 7. A motor 13 is arranged on the upper end of one side of the connecting arm 7, and the output end of the motor 13 is fixedly connected to a moving wheel 14. The top of the connecting arm 7 is fixedly connected to a second electric telescopic rod 15, and the bottom of the output end of the second electric telescopic rod 15 is fixedly connected to a laser scanner 16. The drone composed of the detection drone 1, wings 2, protective frame 3 and propeller 4 , used to carry detection equipment, capable of close observation and detection of cables at high altitudes. When flying to the bottom of the high-altitude cable, the first electric telescopic rod 10 is driven to pull back, so that the connecting arm 7 is clamped on the outside of the cable, and then the second electric telescopic rod 15 is driven to clamp on the top of the cable, so that the detection device can be stably placed on the outside of the cable, and the ultrasonic detector 11, high-frequency partial discharge detector 12 and laser scanner 16 are used to detect the rupture of the cable insulation layer. The ultrasonic detector 11 is used to detect whether there are defects such as bubbles and cracks inside the cable, so as to determine whether the insulation layer is broken. The high-frequency partial discharge detector 12 is used to detect partial discharge phenomena in the cable insulation layer, so as to determine whether the insulation layer is broken. The laser scanner 16 is used to accurately measure the external dimensions and surface defects of the cable, so that the device can replace the inconvenience brought by manual handheld operations, and the flight detection method of the drone can effectively improve the efficiency of the detection of rupture of the insulation layer of high-altitude cables.

[0025] In the present invention, preferably, a remote control system 5 is fixedly connected to the top of the detection drone 1.

[0026] In the present invention, preferably, the connecting arm 7 is rotatably connected to the detection drone 1 via a rotating shaft 17 .

[0027] In the present invention, preferably, the rotating seat 8 is rotatably connected to the output end of the first electric telescopic rod 10 .

[0028] In the present invention, preferably, the motor 13 is fixedly connected to the connecting arm 7 by bolts, and the moving wheel 14 is located on the other side of the connecting arm 7.

[0029] In the present utility model, preferably, the remote control system 5, the ultrasonic detector 11, the high-frequency partial discharge detector 12 and the laser scanner 16 are all electrically connected to each other, the model of the ultrasonic detector 11 is GUS 500, the model of the high-frequency partial discharge detector 12 is PULSE 300, and the model of the laser scanner 16 is Comet L3D. The remote control system 5 is used to operate the drone and ground detection equipment for remote data collection and control.

[0030] In the present invention, preferably, the surfaces of the detection drone 1, the connecting arm 7, the moving wheel 14 and the second electric telescopic rod 15 are all provided with an insulating layer, and the insulation is made of cross-linked polyethylene.

[0031] The working principle and use process of the present invention: when in use, it is mainly composed of a detection drone 1, a protective frame 3, a propeller 4, a fixing seat 6, a connecting arm 7, a guide platform 9, electric telescopic rods 10 and 15, an ultrasonic detector 11, a high-frequency partial discharge detector 12, a laser scanner 16, a remote control system 5, etc. The detection drone 1 is equipped with equipment such as an ultrasonic detector 11, a high-frequency partial discharge detector 12 and a laser scanner 16, takes off to the vicinity of the high-altitude cable, and through the remote control system 5, operates the drone to accurately position itself below the cable to be detected. Subsequently, the first electric telescopic rod 10 is driven to pull back so that the connecting arm 7 is clamped on the outside of the cable, and then the second electric telescopic rod 15 is driven to be clamped on the top of the cable to ensure that the detection device is stably placed on the outside of the cable, and the mobile is driven by the motor. The wheel drives the device located on the outside of the cable to move, so that it can detect while moving, which can greatly improve the efficiency of detecting ruptures in the insulation layer of high-altitude cables. The ultrasonic detector 11 transmits an ultrasonic signal to the cable and determines whether there are defects in the insulation layer based on the characteristics of the reflected wave. The high-frequency partial discharge detector 12 detects the partial discharge signal in the cable insulation layer to determine whether the insulation layer is broken. The laser scanner 16 performs a three-dimensional scan on the cable to obtain the cable's external dimensions and surface defect information. The data collected by the ultrasonic detector 11, the high-frequency partial discharge detector 12 and the laser scanner 16 are transmitted to the remote control system 5 through an electrical connection. The control system processes and analyzes the data, determines whether there is a rupture in the insulation layer, and generates a detection report. Finally, the drone is operated to return to the ground to recover the detection device.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting cracks in the insulation layer of a high-altitude cable, comprising a detection drone (1), characterized in that: The outer side of the detection drone (1) is symmetrically fixedly connected to a protective frame (3), and a propeller (4) is provided inside the protective frame (3). Both sides of the detection drone (1) are symmetrically fixedly connected to fixed seats (6). A connecting arm (7) is provided between the two fixed seats (6). The lower end of one side of the connecting arm (7) is fixedly connected to a rotating seat (8). The top of the detection drone (1) is fixedly connected to a guide platform (9). One side of the guide platform (9) is symmetrically fixedly connected to a first electric telescopic rod (10). The top of the guide platform (9) is fixedly connected to an ultrasonic detector (11). A high-frequency partial discharge detector (12) is fixedly connected inside the connecting arm (7). A motor (13) is provided at the upper end of one side of the connecting arm (7). The output end of the motor (13) is fixedly connected to a moving wheel (14). The top of the connecting arm (7) is fixedly connected to a second electric telescopic rod (15), and the bottom of the output end of the second electric telescopic rod (15) is fixedly connected to a laser scanner (16).

2. The device for detecting rupture of an insulation layer of an aerial cable according to claim 1, characterized in that: A remote control system (5) is fixedly connected to the top of the detection drone (1).

3. The device for detecting rupture of an insulation layer of an aerial cable according to claim 1, wherein: The connecting arm (7) is rotationally connected to the detection drone (1) via a rotating shaft (17).

4. The device for detecting rupture of an aerial cable insulation layer according to claim 1, wherein: The rotating seat (8) is rotatably connected to the output end of the first electric telescopic rod (10).

5. The device for detecting rupture of an insulation layer of an aerial cable according to claim 1, wherein: The motor (13) is fixedly connected to the connecting arm (7) via bolts, and the moving wheel (14) is located on the other side of the connecting arm (7).

6. The device for detecting rupture of an insulation layer of an aerial cable according to claim 2, characterized in that: The remote control system (5), ultrasonic detector (11), high-frequency partial discharge detector (12) and laser scanner (16) are all electrically connected to each other.

7. The device for detecting rupture of an insulation layer of an aerial cable according to claim 1, characterized in that: The surfaces of the detection drone (1), the connecting arm (7), the moving wheel (14) and the second electric telescopic rod (15) are all provided with an insulating layer, and the insulating layer is made of cross-linked polyethylene.

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