Line fault testing device

Abstract

The utility model belongs to the technical field of line testing, particularly relates to a line fault testing device, and provides the following scheme aiming at the problem that the accuracy of fault positioning is influenced due to the fact that pulse signals are attenuated in the conduction process of a high-voltage cable during the existing line fault detection, the line fault testing device comprises a main panel, the device comprises a main panel, two rotating shafts are rotatably installed on the main panel, the outer sides of the rotating shafts are fixedly sleeved with driving wheels and belt wheels, the two belt wheels are provided with the same belt in a transmission mode, a motor is fixedly installed on the rear side of the main panel, and an output shaft of the motor is fixedly connected with the rotating shaft located on the left side. The outer side of the main panel is slidably sleeved with a lifting plate. The device is reasonable in structural design, the whole device can move along the high-voltage cable through cooperation of the driving wheel and the limiting wheel, a sensor can directly detect possible fault points conveniently, attenuation of pulse signals in cable conduction during long-distance testing is reduced, testing accuracy is improved, and reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of line testing, in particular to a line fault testing device. Background Technique

[0002] A line fault testing device is a device used to detect and locate faults in power lines. It usually helps engineers and technicians in the power industry to detect and locate faults in power lines. These devices usually adopt advanced electronic technology and signal processing technology, and can perform high-precision testing and location on power lines, improving the efficiency and accuracy of troubleshooting. A high-voltage pulse signal is injected into the power line to be tested through a high-voltage generator, and a fault tester, a digital oscilloscope and other devices are used to receive the reflected signal. These reflected signals are generated by the fault point in the power line. By analyzing the received reflected signals, the fault locator can determine the location of the fault point, thus helping engineers accurately locate and repair the faults in the power line.

[0003] However, in the process of implementing the embodiments of the present utility model, the inventor found that there are at least the following defects in the background technique: when detecting line faults, the pulse signal will attenuate during the conduction in the high-voltage cable, thus affecting the accuracy of fault location. Therefore, we propose a line fault testing device to solve this problem. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve the problems raised in the above background technique, and to propose a line fault testing device.

[0005] In order to achieve the above purpose, the present utility model adopts the following technical solution:

[0006] A line fault testing device includes a main panel, two rotating shafts are rotatably installed on the main panel, a driving wheel and a belt pulley are fixedly sleeved on the outer side of the rotating shaft, the same belt is installed on the two belt pulleys in a transmission manner, a motor is fixedly installed on the rear side of the main panel, an output shaft of the motor is fixedly connected to the rotating shaft on the left side, a lifting plate is slidably sleeved on the outer side of the main panel, two bases are fixedly installed on the top of the lifting plate, a limit wheel is rotatably installed in the base, two electric push rods are fixedly installed on the lifting plate, the top ends of the two electric push rods are the same mounting plate, and a testing mechanism is arranged on the top of the mounting plate.

[0007] Further, the testing mechanism includes a testing device and two fixture mechanisms, and the testing device is electrically connected to the two fixture mechanisms respectively.

[0008] Further, the fixture mechanism includes a U-shaped guide rail, and two folding plates are slidably sleeved on the outer side of the U-shaped guide rail. The same support spring is fixedly installed between the two folding plates, and a sensor is arranged on the inclined surface of the folding plate.

[0009] Further, a support plate is fixedly installed at the top of the lifting plate, a bent plate is fixedly installed at the top of the support plate, and a plurality of bristles are arranged on one side of the bent plate.

[0010] Further, two fixing plates are fixedly installed at the rear side of the main panel, the same lead screw is rotatably installed between the two fixing plates, the lifting plate is threadedly installed on the outer side of the lead screw, and a knob is fixedly installed at the top end of the lead screw.

[0011] Further, shock-absorbing holes and two balance holes are formed in the front side of the main panel, and the two balance holes are symmetrically arranged.

[0012] The beneficial effects of the utility model are as follows:

[0013] The structure of the utility model is reasonably designed. Through the cooperation of the driving wheel and the limiting wheel, the whole device can move along the high-voltage cable, which is convenient for the sensor to directly detect possible fault points, reduces the attenuation of pulse signals in the cable conduction during long-distance testing, improves the accuracy of testing, and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 1 is a schematic three-dimensional structure diagram of a first perspective of a line fault testing device proposed by the utility model;

[0015] Figure 2 is Figure 1 a partial enlarged view of part A in FIG. 1;

[0016] Figure 3 FIG. 2 is a schematic three-dimensional structure diagram of a fixture mechanism of a line fault testing device proposed by the utility model;

[0017] Figure 4 FIG. 3 is a schematic three-dimensional structure diagram of a second perspective of a line fault testing device proposed by the utility model.

[0018] In the figure: 1, main panel; 2, driving wheel; 3, belt pulley; 4, motor; 5, lifting plate; 6, base; 7, limiting wheel; 8, electric push rod; 9, mounting plate; 10, testing equipment; 11, fixture mechanism; 12, U-shaped guide rail; 13, folding plate; 14, sensor; 15, support spring; 16, bent plate; 17, fixing plate; 18, lead screw; 19, knob; 20, balance hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Referring to Figures 1-4 , a line fault testing device includes a main panel 1. Two rotating shafts are rotatably installed on the main panel 1. A driving wheel 2 and a belt pulley 3 are fixedly sleeved on the outer side of the rotating shafts. The same belt is installed on the two belt pulleys 3 in a transmission manner. A motor 4 is fixedly installed on the rear side of the main panel 1. The output shaft of the motor 4 is fixedly connected to the rotating shaft on the left side. A lifting plate 5 is slidably sleeved on the outer side of the main panel 1. Two bases 6 are fixedly installed on the top of the lifting plate 5. A limiting wheel 7 is rotatably installed in the base 6. Two electric push rods 8 are fixedly installed on the lifting plate 5. The tops of the two electric push rods 8 are the same mounting plate 9. A testing mechanism is arranged on the top of the mounting plate 9.

[0021] In the present invention, the testing mechanism includes a testing device 10 and two fixture mechanisms 11. The testing device 10 is electrically connected to the two fixture mechanisms 11 respectively.

[0022] In the present invention, the fixture mechanism 11 includes a U-shaped guide rail 12. Two folding plates 13 are slidably sleeved on the outer side of the U-shaped guide rail 12. The same support spring 15 is fixedly installed between the two folding plates 13. A sensor 14 is arranged on the inclined surface of the folding plate 13. Through the cooperation of the folding plate 13 and the support spring 15, the fixture mechanism 11 can automatically clamp cables of different thicknesses.

[0023] It should be noted that the sensor 14 and the fixture mechanism 11 play a key role in the detection of high-voltage wire faults. The sensor 14 is usually installed on the fixture mechanism 11. The sensor 14 can be a generator for injecting high-voltage signals or a receiver for receiving reflected signals. These sensors 14 are usually connected to the testing device 10 through wires or wirelessly. The testing device 10 will send high-voltage pulse signals. The signals are injected into the wire through the sensor 14. When the signal reaches the fault point in the wire, it will generate a reflected signal. The sensor 14 will receive this reflected signal and send it to the testing device 10. The testing device 10 will analyze the received reflected signal. By measuring the time delay and intensity of the signal, the position of the fault point can be determined.

[0024] In the present invention, a support plate is fixedly installed on the top of the lifting plate 5. A bent plate 16 is fixedly installed on the top of the support plate. A plurality of bristles are arranged on one side of the bent plate 16, which plays a role in cleaning the dust and sundries on the high-voltage cable.

[0025] In the present utility model, two fixing plates 17 are fixedly installed on the rear side of the main panel 1. The same lead screw 18 is rotatably installed between the two fixing plates 17. The lifting plate 5 is threadedly installed on the outside of the lead screw 18. The top end of the lead screw 18 is fixedly installed with a knob 19 to adjust the height of the lifting plate 5 so that the limiting wheel 7 is in rolling connection with the high-voltage cable, and the whole device is tightly sleeved on the high-voltage cable.

[0026] In the present utility model, shock-absorbing holes and two balance holes 20 are formed on the front side of the main panel 1. The two balance holes 20 are symmetrically arranged to reduce the weight of the whole device and the wind resistance, and prevent the device from shaking caused by the wind blowing.

[0027] The working principle of the present utility model is as follows: The two driving wheels 2 are erected above the high-voltage cable. Rotate the knob 19 to drive the lead screw 18 to rotate, thereby driving the lifting plate 5 to move upward so that the limiting wheel 7 is in rolling connection with the high-voltage cable. Start the motor 4. The motor 4 drives the two driving wheels 2 to rotate through the cooperation of the belt pulley 3 and the belt, thereby driving the whole device to move along the high-voltage cable. When moving, the bending plate 16 is driven to move along the cable, thereby driving a plurality of bristles to clean the cable to avoid dust or debris affecting the fault test. The motor 4 stops running at intervals. When the device is in a stationary state, start the two electric push rods 8, thereby driving the mounting plate 9 and the two fixture mechanisms 11 to move upward. The two folding plates 13 of the fixture mechanism 11 are in contact with the cable, and the sensor 14 ensures that the signal of the test equipment 10 can be accurately transmitted into the cable to realize the fault test operation.

[0028] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A line fault testing device, characterized in that, It includes a main panel (1), on which two rotating shafts are rotatably installed. A driving wheel (2) and a belt pulley (3) are fixedly sleeved on the outer side of each rotating shaft. The same belt is installed on the two belt pulleys (3) in a transmission manner. A motor (4) is fixedly installed at the rear side of the main panel (1), and the output shaft of the motor (4) is fixedly connected to the rotating shaft on the left side. A lifting plate (5) is slidably sleeved on the outer side of the main panel (1). Two bases (6) are fixedly installed at the top of the lifting plate (5). A limiting wheel (7) is rotatably installed in the base (6). Two electric push rods (8) are fixedly installed on the lifting plate (5). The tops of the two electric push rods (8) are connected to the same mounting plate (9), and a testing mechanism is arranged at the top of the mounting plate (9).

2. The line fault testing device according to claim 1, characterized in that, The testing mechanism includes a testing device (10) and two fixture mechanisms (11), and the testing device (10) is electrically connected to the two fixture mechanisms (11) respectively.

3. The line fault testing device according to claim 2, wherein, The fixture mechanism (11) includes a U-shaped guide rail (12). Two folding plates (13) are slidably sleeved on the outer side of the U-shaped guide rail (12). The same support spring (15) is fixedly installed between the two folding plates (13). A sensor (14) is arranged on the inclined surface of the folding plate (13).

4. A line fault testing device according to claim 1, characterized in that A support plate is fixedly installed at the top of the lifting plate (5), and a bent plate (16) is fixedly installed at the top of the support plate. A plurality of bristles are arranged on one side of the bent plate (16).

5. A line fault testing device according to claim 1, characterized in that, Two fixing plates (17) are fixedly installed at the rear side of the main panel (1). The same lead screw (18) is rotatably installed between the two fixing plates (17). The lifting plate (5) is threadedly installed on the outer side of the lead screw (18). A knob (19) is fixedly installed at the top of the lead screw (18).

6. A line fault testing device according to claim 1, characterized in that, Damping holes and two balance holes (20) are formed at the front side of the main panel (1), and the two balance holes (20) are symmetrically arranged.

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