A high voltage cable fault location device

Abstract

This utility model discloses a high-voltage cable fault location device, including a fixed plate. A first rotating rod is rotatably connected inside the fixed plate. A helical blade is fixedly connected to the outside of the first rotating rod. A first gear is fixedly connected to the outside of the first rotating rod. A toothed chain is meshed with the outside of the first gear. A second gear is meshed with one side of the toothed chain. A first drive rod is fixedly connected to the outside of the second gear. Through this structure, the external helical blade and the fixed sliding block at the bottom move, allowing the operator to adjust the cable width according to the needs of the scenario. This ensures accurate width adjustment according to preset parameters, guaranteeing consistency and accuracy in each adjustment, reducing uncertainty caused by human factors, and helping to ensure accurate installation of the cable in cable trays, pipes, or terminal equipment, reducing safety hazards caused by installation deviations.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage cable technology, and in particular to a high-voltage cable fault location device. Background Technology

[0002] High-voltage cables generally refer to cables used to transmit electrical energy at voltage levels of 1kV and above. In practical applications, common high-voltage cable voltage levels include 6kV, 10kV, 35kV, 110kV, and 220kV. Cables of different voltage levels differ in insulation performance, structural design, and application scenarios. High-voltage cable fault location devices inject specific electrical signals, such as pulse signals or high-frequency signals, into the faulty cable and then detect the signal propagation within the cable. When the signal encounters a fault point, it undergoes reflection and refraction, and the location of the fault is determined based on these signal changes.

[0003] In existing technologies, such as the high-voltage cable fault location device proposed in patent CN220855065U, when detecting a high-voltage cable, the two mounting seats are pulled to move in opposite directions within the U-shaped frame. The telescopic rod and the limiting spring are compressed, and then the two rollers are positioned outside the high-voltage cable. The rebound force of the limiting spring causes the grooves of the two rollers to contact the outer wall of the high-voltage cable, thereby limiting the high-voltage cable. Then, by holding the handle and pushing the U-shaped frame, the two rollers move on the mounting seats respectively. At this time, the two rollers move on the outer wall of the high-voltage cable, and the sensor detects the high-voltage cable. Through the above method, the sensor device can be stably moved on the high-voltage cable, preventing it from falling off and ensuring the detection effect of the high-voltage cable.

[0004] However, different operators have different techniques, strength, and judgment standards. Even for the same operator, it is difficult to guarantee that the width adjustment will be consistent and accurate every time, depending on the time and conditions. This can lead to unstable cable fixation in the device, affecting the accuracy of fault location. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a high-voltage cable fault location device. This device reduces uncertainties caused by human factors and helps ensure the accurate installation position of cables in cable trays, pipes, or terminal equipment, reducing safety hazards caused by installation deviations. It also enables the positioning device to maintain the optimal distance and angle of the cable, optimizes signal reception, and thus more accurately acquires fault signal characteristics.

[0006] To achieve the above objectives, a high-voltage cable fault location device is provided, comprising a fixed plate, a first rotating rod rotatably connected inside the fixed plate, a spiral blade fixedly connected to the outside of the first rotating rod, a first gear fixedly connected to the outside of the first rotating rod, a toothed chain meshing with the outside of the first gear, a second gear meshing with one side of the toothed chain, a first drive rod fixedly connected to the outside of the second gear, a first motor fixedly connected to the output end of the first drive rod, and a fixed block fixedly connected to the bottom of the first motor.

[0007] According to the high-voltage cable fault location device, a housing is fixedly connected to the outside of the fixing plate, and multiple sliding blocks are slidably connected to the bottom of the housing.

[0008] According to the high-voltage cable fault location device, the bottom of the housing is slidably connected to a plurality of support rods, and the bottom of the spiral blade is slidably connected to the top of the support rods.

[0009] According to the high-voltage cable fault location device, the bottom of the sliding block is fixedly connected to a housing, and multiple racks are fixedly connected inside the housing.

[0010] According to the high-voltage cable fault location device, the rack is internally meshed with a third gear, and the third gear is internally fixedly connected with a second drive rod.

[0011] According to the high-voltage cable fault location device, the output end of the second drive rod is fixedly connected to a second motor, and the exterior of the second motor is fixedly connected to one end of the support rod.

[0012] According to the high-voltage cable fault location device, a base is fixedly connected to the bottom of the housing, a third motor is fixedly connected to the outside of the base, a bidirectional threaded rod is rotatably connected to the output end of the third motor, and two sliding plates are threadedly connected to the outside of the bidirectional threaded rod.

[0013] According to the high-voltage cable fault location device, a telescopic rod is fixedly connected to the outside of the sliding plate, a spring is sleeved on the outside of the telescopic rod, a collar is fixedly connected to one end of the telescopic rod, and a cable is arranged inside the collar. Beneficial effects

[0014] 1. Driven by the first motor and the first drive rod, the external second gear rotates. The second gear drives the external gear chain to rotate, which in turn drives the first gear on one side to rotate. This causes the first gear to drive the internal rotating rod to rotate, moving the external spiral blades and the bottom fixed sliding block. The operator can adjust the cable width according to the needs of the scenario. This allows for accurate adjustment of the width according to preset parameters, ensuring consistency and accuracy in each adjustment, reducing uncertainty caused by human factors, and helping to ensure the accurate installation position of the cable in the cable tray, pipe or terminal equipment, reducing safety hazards caused by installation deviations.

[0015] 2. Driven by a third motor, the bidirectional threaded rod rotates, causing the sliding plates on both sides to move towards the center. A telescopic rod is fixed to one end of the sliding plate, which moves a collar at one end to secure the cable. Then, driven by a second motor and a second drive rod, the external third gear rotates. The third gear moves under the action of a rack inside the housing, adjusting the height of the secured cable to a suitable level. This reduces signal interference and attenuation caused by cable swaying or displacement, ensuring stable signal transmission between the fault location device and the cable. Simultaneously, adjusting the height allows the positioning device to maintain the optimal distance and angle between the cable and the cable, optimizing signal reception and thus more accurately acquiring fault signal characteristics.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a perspective view of a high-voltage cable fault location device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the toothed chain structure of a high-voltage cable fault location device proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the rack structure of a high-voltage cable fault location device proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the bidirectional threaded rod of a high-voltage cable fault location device proposed in this utility model.

[0022] Legend:

[0023] 1. Fixed plate; 2. Housing; 3. Sliding block; 4. Support rod; 5. First rotating rod; 6. Helical blade; 7. First gear; 8. Gear chain; 9. Second gear; 10. First drive rod; 11. First motor; 12. Fixed block; 13. Spring; 14. Second motor; 15. Second drive rod; 16. Third gear; 17. Housing; 18. Rack; 19. Base; 20. Third motor; 21. Bidirectional threaded rod; 22. Sliding plate; 23. Telescopic rod; 24. Collar; 25. Cable. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-4 This utility model discloses a high-voltage cable fault location device, which includes a fixed plate 1. A first rotating rod 5 is rotatably connected inside the fixed plate 1. A spiral blade 6 is fixedly connected to the outside of the first rotating rod 5. A first gear 7 is fixedly connected to the outside of the first rotating rod 5. A toothed chain 8 is meshed with the outside of the first gear 7. A second gear 9 is meshed with one side of the toothed chain 8. A first drive rod 10 is fixedly connected to the outside of the second gear 9. A first motor 11 is fixedly connected to the output end of the first drive rod 10. A fixed block 12 is fixedly connected to the bottom of the first motor 11.

[0026] Specifically: Driven by the first motor 11, the first drive rod 10 drives the external second gear 9 to rotate, the second gear 9 drives the external gear chain 8 to rotate, and the gear chain 8 drives the first gear 7 on one side to rotate, so that the first gear 7 drives the internal rotating rod 10 to rotate, and moves the external spiral blade 6 and the bottom fixed sliding block 3.

[0027] The fixed plate 1 is externally fixedly connected to the housing 2, and the bottom of the housing 2 is slidably connected to multiple sliding blocks 3.

[0028] Multiple support rods 4 are slidably connected to the bottom of the housing 2, and the bottom of the spiral blade 6 is slidably connected to the top of the support rods 4.

[0029] The bottom of the sliding block 3 is fixedly connected to the outer shell 17, and multiple racks 18 are fixedly connected inside the outer shell 17.

[0030] The rack 18 is internally meshed with a third gear 16, and the third gear 16 is internally fixedly connected to a second drive rod 15.

[0031] Specifically: Driven by the second motor 14, the second drive rod 15 drives the external third gear 16 to rotate. The third gear 16 moves under the action of the rack 18 inside the housing 17, adjusting the fixed cable 25 to a suitable height.

[0032] The output end of the second drive rod 15 is fixedly connected to the second motor 14, and the exterior of the second motor 14 is fixedly connected to one end of the support rod 4.

[0033] The bottom of the outer casing 17 is fixedly connected to a base 19, and the base 19 is fixedly connected to a third motor 20. The output end of the third motor 20 is rotatably connected to a bidirectional threaded rod 21, and the external thread of the bidirectional threaded rod 21 is connected to two sliding plates 22.

[0034] Specifically: Driven by the third motor 20, the bidirectional threaded rod 21 is rotated, which in turn drives the sliding plates 22 on both sides to move towards the middle. A telescopic rod 23 is fixed at one end of the sliding plate 22, which drives the collar 24 at one end to move and fix the cable 25.

[0035] A telescopic rod 23 is fixedly connected to the outside of the sliding plate 22. A spring 13 is sleeved on the outside of the telescopic rod 23. A collar 24 is fixedly connected to one end of the telescopic rod 23. A cable 25 is installed inside the collar 24.

[0036] Working principle: Driven by the first motor 11 and the first drive rod 10, the second gear 9 rotates at the top of the fixed block 12. The second gear 9 drives the external gear chain 8 to rotate, which in turn drives the first gear 7 on one side to rotate. This causes the first gear 7 to drive the internal rotating rod 10 to rotate, moving the external spiral blade 6 and the bottom fixed sliding block 3. The operator can adjust the width of the cable 25 according to the needs of the scene. This allows for accurate adjustment of the width according to preset parameters, ensuring consistency and accuracy in each adjustment, reducing uncertainty caused by human factors, and helping to ensure the accurate installation position of the cable 25 in the cable tray, pipe, or terminal equipment. This reduces safety hazards caused by installation deviations, such as the distance between the cable 25 and other objects. To address issues such as insufficient cable bending radius, the cable 25 is driven by a third motor 20 at the bottom of housing 2, which rotates a bidirectional threaded rod 21. This causes the sliding plates 22 on both sides to move towards the center. A telescopic rod 23 is fixed to one end of each sliding plate 22, which in turn moves a collar 24 to secure the cable 25. Then, driven by a second motor 14 and a second drive rod 15, an external third gear 16 rotates. This third gear 16 moves under the action of a rack 18 inside housing 17, adjusting the height of the secured cable 25. This reduces signal interference and attenuation caused by cable 25 shaking or displacement, ensuring stable signal transmission between the fault location device and the cable 25. Simultaneously, adjusting the height allows the cable 25 to maintain optimal distance and angle, optimizing signal reception and enabling more accurate acquisition of fault signal characteristics, thus improving fault location accuracy.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high voltage cable fault location device comprising a fixing plate (1), characterised in that: The fixed plate (1) is rotatably connected to a first rotating rod (5), and a spiral blade (6) is fixedly connected to the outside of the first rotating rod (5). A first gear (7) is fixedly connected to the outside of the first rotating rod (5), and a toothed chain (8) is meshed with the outside of the first gear (7). A second gear (9) is meshed with one side of the toothed chain (8), and a first drive rod (10) is fixedly connected to the outside of the second gear (9). A first motor (11) is fixedly connected to the output end of the first drive rod (10), and a fixed block (12) is fixedly connected to the bottom of the first motor (11).

2. A high voltage cable fault location apparatus according to claim 1, characterised in that, The fixed plate (1) is fixedly connected to the outside of the housing (2), and the bottom of the housing (2) is slidably connected to a plurality of sliding blocks (3).

3. A high voltage cable fault location apparatus according to claim 2, characterised in that, The bottom of the housing (2) is slidably connected to a plurality of support rods (4), and the bottom of the spiral blade (6) is slidably connected to the top of the support rods (4).

4. A high voltage cable fault location apparatus according to claim 2, characterised in that, The bottom of the sliding block (3) is fixedly connected to a housing (17), and a plurality of racks (18) are fixedly connected inside the housing (17).

5. A high voltage cable fault location apparatus according to claim 4, characterised in that, The rack (18) is internally meshed with a third gear (16), and the third gear (16) is internally fixedly connected with a second drive rod (15).

6. A high-voltage cable fault location device according to claim 5, characterized in that, The output end of the second drive rod (15) is fixedly connected to the second motor (14), and the exterior of the second motor (14) is fixedly connected to one end of the support rod (4).

7. A high-voltage cable fault location device according to claim 4, characterized in that, The bottom of the outer shell (17) is fixedly connected to a base (19), and a third motor (20) is fixedly connected to the outside of the base (19). The output end of the third motor (20) is rotatably connected to a bidirectional threaded rod (21), and the outside of the bidirectional threaded rod (21) is connected to two sliding plates (22).

8. A high-voltage cable fault location device according to claim 7, characterized in that, The sliding plate (22) is fixedly connected to a telescopic rod (23), and a spring (13) is sleeved on the outside of the telescopic rod (23). One end of the telescopic rod (23) is fixedly connected to a collar (24), and a cable (25) is installed inside the collar (24).

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