Portable cable fault detecting and positioning equipment

Abstract

The utility model relates to the technical field of cable fault detection, in particular to portable cable fault detecting and positioning equipment. Comprising an equipment box, a high-frequency current pulse sensor, two first insulating ropes and two groups of clamping assemblies, mounting plates are arranged on the two sides of the equipment box, the mounting plate on one side is fixed to the end of the equipment box, a sliding plate is connected to the mounting plate on the other side, the sliding plate is slidably arranged on the equipment box, and an electric telescopic rod used for driving the sliding plate to move is mounted on the equipment box; the two groups of clamping assemblies are respectively mounted on the mounting plates on the two sides; the high-frequency current pulse sensor is installed on the clamping assembly on one side. And the two first insulating ropes are connected with the equipment box. The technical scheme has the advantages of being wide in detection range and convenient to disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable fault detection technical field, especially a kind of portable cable fault detection positioning equipment. BACKGROUND

[0002] Cable partial discharge monitoring is a technique used to detect and locate insulation faults in power cables, typically in high-voltage or extra-high-voltage cable systems. Partial discharge refers to the leakage of current through the insulation layer of a cable to ground or other conductors due to factors such as insulation aging, moisture, mechanical damage, etc. Effective monitoring can prevent potential serious faults and power accidents.

[0003] In the prior art, the detection of high-altitude cables usually uses a robot to carry a high-frequency current pulse sensor to move on the cable for detection. When the end position is detected, the sensor needs to be moved back by the robot, and the operator needs to climb again to take down the equipment, which is cumbersome and time-consuming. UTILITY MODEL CONTENT

[0004] The utility model aims at the problems in the background art and provides a kind of portable cable fault detection positioning equipment.

[0005] The technical scheme of the utility model provides a kind of portable cable fault detection positioning equipment, which comprises:

[0006] The equipment box is provided with mounting plates on both sides, one side mounting plate is fixed at the end of the equipment box, and the other side mounting plate is connected with a sliding plate, which is slidingly arranged on the equipment box. An electric telescopic rod for driving the sliding plate to move is installed on the equipment box.

[0007] Two groups of clamping assemblies are installed on the mounting plates on both sides.

[0008] A high-frequency current pulse sensor is installed on one side of the clamping assembly.

[0009] A first insulating rope and a second insulating rope are connected with the equipment box.

[0010] Preferably, the clamping assembly comprises a first semicircle, a second semicircle, a servo motor, a turntable, a connecting rod, a rotating seat and a rotating rod. The first semicircle is arranged at the upper end of the mounting plate. The first semicircle and the second semicircle are respectively connected with the rotating seat and the rotating rod. The rotating rod is rotatably connected with the rotating seat. The servo motor is installed on the mounting plate. The turntable is connected with the output shaft of the servo motor. One end of the connecting rod is rotatably installed at the edge of the turntable, and the other end is rotatably connected with the rotating rod. The servo motor away from the sliding plate is located inside the equipment box.

[0011] Preferably, the inner wall of the first half ring and the second half ring is provided with a non-slip pad.

[0012] Preferably, a notch is formed on the equipment box for the servo motor adjacent to one side of the slide plate to move in, and the main body of the electric telescopic rod is arranged on the inner side of the notch.

[0013] Preferably, the upper and lower ends of the equipment box are vertically provided with mounting racks, and the ends of the two mounting racks are provided with cameras.

[0014] Preferably, a pressure sensor is arranged on the equipment box adjacent to one end of the slide plate.

[0015] Preferably, a controller and a signal transceiver are arranged on the equipment box.

[0016] Preferably, the bottom end of the first insulating rope and the second insulating rope is connected with an insulating ring.

[0017] Compared with the prior art, the utility model has the beneficial technical effects that:

[0018] 1. The device is small in size and convenient to carry. When detecting, the device is moved to the detection end position, and the first half rings on both sides are simultaneously driven to rotate synchronously, and then the device is separated from the cable. At this time, the first insulating rope and the second insulating rope on both sides are pulled tight, and one person pulls down the first insulating rope, and the other person simultaneously unwinds the second insulating rope, so that the device can be conveniently taken down from a high place, and the operation time is saved.

[0019] 2. Through the cooperation of the electric telescopic rod and the two groups of clamping assemblies, the device can climb on the cable, the detection range is improved, the structure is simple, and the practicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 and Figure 2 are structure schematic diagrams of the utility model.

[0021] Figure 3 is a structure schematic diagram of the device installed on the cable in the utility model.

[0022] Mark: 1, equipment box; 101, notch; 2, electric telescopic rod; 3, high-frequency current pulse sensor; 41, first insulating rope; 42, second insulating rope; 5, insulating ring; 6, mounting rack; 7, camera; 81, first half ring; 82, second half ring; 9, non-slip pad; 10, pressure sensor; 11, servo motor; 12, rotating disc; 13, connecting rod; 14, rotating seat; 15, rotating rod; 16, mounting plate; 17, slide plate. DETAILED DESCRIPTION

[0023] Example one

[0024] As Figures 1-3 shown, the portable cable fault detection and positioning device provided by the embodiment includes a device box 1, a high-frequency current pulse sensor 3, a first insulating rope 41, a second insulating rope 42 and two sets of clamping assemblies.

[0025] Both sides of the device box 1 are provided with mounting plates 16, one side of the mounting plate 16 is fixed at the end of the device box 1, and the other side of the mounting plate 16 is connected with a sliding plate 17 which is slidingly arranged on the device box 1, and the device box 1 is provided with an electric telescopic rod 2 for driving the sliding plate 17 to move; the two sets of clamping assemblies are respectively arranged on the mounting plates 16 on both sides, and each clamping assembly includes a first semicircle ring 81, a second semicircle ring 82, a servo motor 11, a rotating disc 12, a connecting rod 13, a rotating seat 14 and a rotating rod 15, the first semicircle ring 81 is arranged at the upper end of the mounting plate 16, and the inner walls of the first semicircle ring 81 and the second semicircle ring 82 are both provided with anti-skid pads 9, the rotating seat 14 and the rotating rod 15 are respectively connected to the first semicircle ring 81 and the second semicircle ring 82, the rotating rod 15 is rotatably connected to the rotating seat 14, the servo motor 11 is arranged on the mounting plate 16, the rotating disc 12 is connected to the output shaft of the servo motor 11, one end of the connecting rod 13 is rotatably arranged at the edge of the rotating disc 12, and the other end thereof is rotatably connected to the rotating rod 15, and the servo motor 11 on the side away from the sliding plate 17 is located at the inner side of the device box 1; a gap 101 is formed in the device box 1 for the servo motor 11 on the side adjacent to the sliding plate 17 to move into, and the main body of the electric telescopic rod 2 is located at the inner side of the gap 101; the high-frequency current pulse sensor 3 is arranged on the clamping assembly on one side.

[0026] The controller and the signal transceiver are arranged on the device box 1, the operator sends control signals to the device through a remote control device on the ground, the signal transceiver feeds back the received signals to the controller, and the controller performs control operations.

[0027] The first insulating rope 41 and the second insulating rope 42 are both connected to the device box 1, and the bottom ends of the first insulating rope 41 and the second insulating rope 42 are both connected with insulating rings 5, the insulating rings 5 serve as counterweights to reduce the swing amplitude of the ropes.

[0028] In this embodiment, when monitoring the partial discharge of high-voltage overhead lines, the operator takes protective measures to climb up and install the equipment on the cable, so that the cable is placed between the first and second semicircular rings 81 and 82. The high-frequency current pulse sensor 3 is in a ring structure, and the high-frequency current pulse sensor 3 is composed of two semicircular rings connected by rotation. Before installation, the first semicircular ring 81 or the second semicircular ring 82 should be placed on the upper part of the cable, so that the first semicircular ring 81 and the second semicircular ring 82 are placed on both sides of the equipment box 1. Subsequently, the detection of the cable can be realized by the high-frequency current pulse sensor 3. When the driving device climbs on the cable, the right servo motor 11 is started to drive the corresponding turntable 12 to rotate. Under the cooperation of the connecting rod 13, the first semicircular ring 81 is slightly rotated to release the fixed connection between the right clamping assembly and the cable. Then the left clamping assembly is clamped on the cable. Subsequently, the electric telescopic rod 2 is started to drive its telescopic shaft to the maximum length, so that the equipment box 1 moves to the right. Then adjust the right clamping assembly to the clamping state, and release the clamping state of the left clamping assembly. The output shaft of the electric telescopic rod 2 is retracted. By repeatedly executing the above operation, the intermittent movement of the entire device is completed, thereby realizing the comprehensive detection of the cable.

[0029] When the device moves to the detection end position, the servo motors 11 on both sides are started to drive the first semicircular rings 81 on both sides to rotate synchronously, and the first and second insulating ropes 41 and 42 on both sides are tensioned. Then the device is separated from the cable, and the first and second insulating ropes 41 and 42 are slowly moved by two people (one pulls and one releases), so that the device can be easily taken down from a high place.

[0030] Embodiment Two

[0031] As shown in Figure 1 , a portable cable fault detection and positioning device is proposed in this embodiment. Compared with embodiment one, in this embodiment, the upper and lower ends of the equipment box 1 are vertically provided with mounting frames 6, and the ends of the two mounting frames 6 are provided with cameras 7. The cameras 7 can check the damage of the surface of the cable.

[0032] Embodiment Three

[0033] As shown in Figure 1As shown, compared with the first embodiment, in the portable cable fault detection and positioning device, a pressure sensor 10 is installed on one end of the device box 1 adjacent to the sliding plate 17, because the device is intermittently moved through the extension and retraction of the electric telescopic rod 2, and the distance of each movement is the same, when the mounting plate 16 adjacent to the sliding plate 17 contacts the pressure sensor 10, the pressure sensor 10 feeds back a signal to the controller, and the controller records the detection times of the pressure sensor 10, thereby indirectly calculating the moving distance of the device.

[0034] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A portable cable fault detection and location apparatus, characterised in that, The utility model relates to a high-frequency electric current pulse sensor device box, including: A device box (1), both sides of the device box (1) are provided with mounting plates (16), one side mounting plate (16) is fixed at the end of the device box (1), the mounting plate (16) on the other side is connected with a sliding plate (17), the sliding plate (17) is slidably arranged on the device box (1), and the device box (1) is provided with a motorized telescopic rod (2) for driving the sliding plate (17) to move; Two sets of clamping assemblies are respectively installed on the mounting plates (16) on both sides; A high-frequency electric current pulse sensor (3) is installed on one side of the clamping assembly; A first insulating rope (41) and a second insulating rope (42) are connected with the device box (1).

2. A portable cable fault detection and location apparatus according to claim 1, characterised in that, The clamping assembly comprises a first semicircle ring (81), a second semicircle ring (82), a servo motor (11), a rotating disc (12), a connecting rod (13), a rotating seat (14) and a rotating rod (15), the first semicircle ring (81) is arranged at the upper end of the mounting plate (16), the rotating seat (14) and the rotating rod (15) are respectively connected to the first semicircle ring (81) and the second semicircle ring (82), the rotating rod (15) is rotatably connected to the rotating seat (14), the servo motor (11) is installed on the mounting plate (16), the rotating disc (12) is connected to the output shaft of the servo motor (11), one end of the connecting rod (13) is rotatably installed at the edge of the rotating disc (12), and the other end is rotatably connected to the rotating rod (15), and the servo motor (11) on the side away from the sliding plate (17) is located on the inner side of the device box (1).

3. A portable cable fault detection and location apparatus according to claim 2, characterised in that, The first semicircle ring (81) and the second semicircle ring (82) are provided with anti-skid pads (9) on the inner walls.

4. A portable cable fault detection and location apparatus according to claim 2, wherein, A notch (101) is formed in the device box (1) for the servo motor (11) on the side adjacent to the sliding plate (17) to move in, and the main body of the motorized telescopic rod (2) is located on the inner side of the notch (101).

5. The portable cable fault detection and location device of claim 1, wherein, The device box (1) is vertically provided with mounting racks (6) at the upper end and the lower end, and the camera (7) is installed at the end of the two mounting racks (6).

6. The portable cable fault detection and location apparatus of claim 1, wherein, A pressure sensor (10) is installed on one end of the device box (1) adjacent to the sliding plate (17).

7. The portable cable fault detection and location device of claim 1, wherein, A controller and a signal transceiver are installed on the device box (1).

8. The portable cable fault detection and location apparatus of claim 1, wherein, The bottom ends of the first insulating rope (41) and the second insulating rope (42) are connected with insulating rings (5).

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