A distribution network grounding fault rapid positioning detection device

Abstract

The application relates to the technical field of distribution network grounding fault detection, and provides a distribution network grounding fault rapid positioning detection device, which comprises a detection mechanism, a clamping mechanism, a locking mechanism, a storage mechanism and a sealing mechanism, and the detection mechanism comprises a lower shell. In the application, the upper clamp is rotated, then the lower clamp is used to constrain the wire, the ball head rod which is driven with the upper clamp, and the plug plate pass through the plug hole, then the plug plate presses down the pressure plate, the spring is contracted to provide the plug plate with a space for moving downward, at the same time, the elastic pad on the bottom support extrudes the rectangular plate upward, the rectangular plate pushes the left end of the buckle plate, the buckle plate is rotated around the support frame, the right end of the buckle plate is clamped into the rectangular hole in the plug plate, automatic locking of the plug plate is realized, and then the upper clamp is firmly fixed at the clamping position. The automatic locking mode greatly improves the installation convenience.

Description

Technical Field

[0001] This invention relates to the field of distribution network grounding fault detection technology, and specifically to a rapid location and detection device for distribution network grounding faults. Background Technology

[0002] Distributed fault location devices are online monitoring equipment installed on transmission lines. By monitoring the traveling wave signal and power frequency current generated by the fault current in real time, they can quickly determine the fault circuit, fault type, and fault location, controlling the fault location accuracy within 100 meters and shortening the single fault investigation time by 4 to 6 hours. With the development of power systems towards intelligence and high reliability, distributed fault location devices have been widely used in transmission lines.

[0003] Currently, a typical structure of a distributed fault location device includes an upper housing and a lower housing. The upper housing is detachably mounted on top of the lower housing. Both the upper and lower housings have semi-circular holes on their front and rear sides to accommodate wires. During installation, the device needs to be disassembled into two semi-cylinders and delivered to the installation location separately. The operator aligns one semi-cylinder with the wire, picks up the other half and mates it, and then uses bolts, nuts, and other connectors to secure and lock the upper and lower housings together, completing the installation of the device.

[0004] Throughout the installation process, workers have to spend a lot of time tightening bolts to complete the installation. The operation is cumbersome, and if a bolt falls off, it is necessary to realign the bolt and the bolt hole. In addition, there is nowhere to put the tools during operation, and the tools often slip out of the hands and fall, which further slows down the installation progress. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid location and detection device for distribution network grounding faults, which has significantly higher ease of operation and installation.

[0006] To achieve the above objectives, the present invention provides a rapid location and detection device for distribution network grounding faults, comprising a detection mechanism, a clamping mechanism, a locking mechanism, a storage mechanism, and a sealing mechanism. The detection mechanism includes a lower shell, an inner core detachably mounted on the bottom surface of the lower shell, and a cover interference-fitted to the top of the lower shell. The clamping mechanism includes two lower clamps respectively mounted on both ends of the cover, an upper clamp facing each other and abutting the top of the lower clamps, and a connector detachably mounted on the top of the inner core and rotatably connected to the upper clamp. The locking mechanism includes a ball-head rod rotatably mounted on the bottom of one end of the upper clamp, an insert plate slidingly penetrating the top of the cover and fixedly connected to the bottom end of the ball-head rod, a pressure plate abutting the bottom of the insert plate, and a locking mechanism fixedly connected to the bottom of the pressure plate. The system includes two springs between the top of the bottom support, a bottom support fixed to the inner wall of the lower shell and between the two springs, an elastic pad and a support frame fixed to the top of the bottom support, a rectangular plate fixed to the top of the elastic pad, a buckle plate attached to the top of the rectangular plate and rotatably connected to the support frame, an L-plate attached to the top of the buckle plate, and a rectangular opening on the buckle plate suitable for snapping into the inner side of the buckle plate. A storage mechanism includes two sliders slidably mounted on one side of the lower shell, a box fixed between the two sliders, and multiple anti-loss ropes slidably passing through one end of the sliders. A closing mechanism includes an upper shell attached to the top of the lower shell, four slots screwed between the lower shell and the upper shell, and multiple bolts at both ends of the upper shell suitable for rotation of the slots. The height of the bolts is less than the length of the slots.

[0007] By adopting the above technical solution, the upper clamp is rotated, and then the lower clamp is used to constrain the wire. The ball head rod and insert plate that move with the upper clamp pass through the insertion port. Then the insert plate presses down on the bearing plate, and the spring contracts to provide space for the insert plate to move downward. At the same time, the elastic pad on the bottom support presses the rectangular plate upward. The rectangular plate pushes the left end of the buckle plate, causing the buckle plate to rotate around the support frame. Its right end then gets into the rectangular hole opened on the insert plate, realizing automatic locking of the insert plate. This securely fixes the upper clamp in the clamping position. This automatic locking method greatly improves the ease of installation.

[0008] Preferably, the cover has two insertion ports and two L-shaped openings. The two insertion ports are located between the two lower clamps and the two L-shaped openings, respectively. The insertion ports are suitable for inserting plates, and the two long sides at the top are both arc-shaped. The L-shaped openings are suitable for inserting L-shaped plates.

[0009] Preferably, the ball head rod includes a ball and a cylinder, the ball is movably engaged inside the upper clamp, the cylinder rotates through the bottom of one end of the upper clamp, and the ball is fixed to the top of the cylinder.

[0010] Preferably, the bottom support includes a Z-shaped plate and two piles, the two piles being vertically coaxial with two springs respectively, and the piles being fixed between the bottom of the Z-shaped plate and the inner wall of the lower shell.

[0011] Preferably, the support frame is located between the pressure plate and the elastic pad, and the support frame is made of metal.

[0012] Preferably, multiple anti-loss ropes are arranged in a row at equal intervals. Each anti-loss rope includes a rope body, a collar, and a magnet. The collar is located inside the box and is fixedly sleeved on the outside of the rope body. The magnet is located on the outside of the box and is fixedly connected to the outer end of the rope body.

[0013] Preferably, the storage mechanism further includes a sheet metal, which is detachably installed at the bottom of the box.

[0014] Preferably, a connecting rod is fixed between the two upper clamps, and the connecting rod is made of metal.

[0015] Preferably, the spring has a guide rod inside, the bottom end of the guide rod is fixed to the top of the bottom support, and the top end of the guide rod slides into the interior of the pressure plate.

[0016] Preferably, a pressure cap is fastened to the top of the box body, and the pressure cap is made of plastic material.

[0017] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0018] 1. This invention rotates the upper clamp, and then, in conjunction with the lower clamp, constrains the wire. The ball-head rod and insert plate, which move with the upper clamp, pass through the insertion port. Then, the insert plate presses down on the bearing plate, and the spring contracts to provide space for the insert plate to move downward. At the same time, the elastic pad on the bottom support presses the rectangular plate upward, and the rectangular plate pushes the left end of the buckle plate, causing the buckle plate to rotate around the support frame. Its right end then automatically engages with the rectangular opening on the insert plate, thus automatically locking the insert plate and firmly fixing the upper clamp in the clamping position. This automatic locking method significantly improves the ease of installation.

[0019] 2. After connecting commonly used tools to the anti-loss rope, the tools are always within the operator's control. This way, even if the tool is temporarily released, it will not affect subsequent use. Combined with the short-stroke bolt design of the closed mechanism, the overall installation safety is significantly improved.

[0020] 3. The metal sheet allows for easy fixing of the magnet to any position on the outside of the box. By pulling the magnet outward, the rope can be straightened, effectively preventing the rope from becoming tangled. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a perspective view of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the lower shell of the present invention;

[0024] Figure 3 This is a schematic diagram of the testing mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention;

[0026] Figure 5 This is a schematic diagram of the locking mechanism assembly of the present invention;

[0027] Figure 6 This is an exploded view of the locking mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the storage mechanism of the present invention;

[0029] Figure 8 This is a schematic diagram of the closing mechanism of the present invention;

[0030] Figure 9 This is a perspective view of the anti-loss rope of the present invention;

[0031] Figure 10 This is a perspective view of the cap of the present invention.

[0032] Figure label:

[0033] 100. Testing institution; 110. Lower shell; 120. Inner core; 130. Cover; 131. Insert; 132. L-shaped port;

[0034] 200 Clamping mechanism; 210 Lower clamp; 220 Upper clamp; 230 Connecting component;

[0035] 300. Locking mechanism; 310. Ball joint rod; 320. Insert plate; 330. Pressure plate; 340. Spring; 350. Base support; 351. Z-shaped plate; 352. Pile; 360. Elastic pad; 370. Support frame; 380. Rectangular plate; 390. Buckle plate; 391. L-plate;

[0036] 400. Storage mechanism; 410. Slider; 420. Box body; 430. Anti-loss rope; 431. Rope; 432. Hoop; 433. Magnet; 440. Sheet metal;

[0037] 500. Enclosure mechanism; 510. Upper shell; 520. Bolt; 530. Groove;

[0038] 600, connecting rod;

[0039] 700, guide rod;

[0040] 800, capping. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1:

[0043] Combination Figures 1-10 As shown, the distribution network grounding fault rapid location detection device provided by the present invention includes a detection mechanism 100, a clamping mechanism 200, a locking mechanism 300, a storage mechanism 400, and a sealing mechanism 500. The detection mechanism 100 includes a lower shell 110 of the distributed fault location device, an inner core 120 of the distributed fault location device that is detachably installed on the bottom surface of the lower shell 110, and a cover 130 that is interference-fitted into the top of the lower shell 110.

[0044] The clamping mechanism 200 includes two lower clamps 210 respectively embedded at both ends of the cover 130, an upper clamp 220 facing each other and attached to the top of the lower clamps 210, and a connector 230 detachably embedded in the top of the inner core 120 and rotatably connected to the upper clamp 220.

[0045] The locking mechanism 300 includes a ball head rod 310 rotatably fitted into the bottom of one end of the upper clamp 220, an insert plate 320 slidably passing through the top of the cover 130 and fixedly connected to the bottom end of the ball head rod 310, a pressure plate 330 attached to the bottom of the insert plate 320, two springs 340 fixedly connected between the bottom of the pressure plate 330 and the top of the bottom support 350, a bottom support 350 fixedly connected between the inner wall of the lower shell 110 and the two springs 340, an elastic pad 360 and a support frame 370 fixedly connected to the top of the bottom support 350, a rectangular plate 380 fixedly connected to the top of the elastic pad 360, a buckle plate 390 attached to the top of the rectangular plate 380 and rotatably connected to the support frame 370, and an L-plate 391 attached to the top of the buckle plate 390. The insert plate 320 has a rectangular opening suitable for snapping into the inner side of the buckle plate 390.

[0046] The storage mechanism 400 includes two sliders 410 slidably mounted on one side of the lower shell 110, a box 420 fixed between the two sliders 410, and a plurality of anti-loss ropes 430 slidably passing through one end of the sliders 410.

[0047] The sealing mechanism 500 includes an upper shell 510 of a distributed fault location device attached to the top of the lower shell 110, four slots 530 screwed between the lower shell 110 and the upper shell 510, and a plurality of bolts 520 opened at both ends of the upper shell 510 and adapted to rotate the slots 530, wherein the height of the bolts 520 is less than the length of the slots 530.

[0048] Furthermore, the cover 130 has two insertion ports 131 and two L-ports 132. The two insertion ports 131 are located between the two lower clamps 210 and the two L-ports 132, respectively. The insertion ports 131 are suitable for insertion into the insertion plate 320, and the two long sides at the top are both arc-shaped. The L-ports 132 are suitable for insertion into the L-plate 391. Through the independent partitioning of the insertion ports 131 and L-ports 132, the insertion of the insertion plate 320 and the L-plate 391 can be achieved through separate channels without interference. At the same time, the arc-shaped design at the top of the insertion port 131 can guide the insertion plate 320 to enter smoothly and automatically center, avoiding repeated adjustments due to difficulty in alignment when operating at height, and improving the convenience of one-handed operation.

[0049] Furthermore, the ball joint 310 includes a ball and a cylinder. The ball is movably engaged inside the upper clamp 220. The cylinder rotates through the bottom of one end of the upper clamp 220, and the ball is fixed to the top of the cylinder. The ball provides universal rotation freedom inside the upper clamp 220, allowing the ball joint 310 to adapt to different angles of deflection without jamming. This ensures that the insert plate 320 always moves vertically downward when the upper clamp 220 is flipped, avoiding lateral forces that could cause the clamping mechanism 200 to fail or wear out, and improving long-term reliability.

[0050] Furthermore, the bottom support 350 includes a Z-shaped plate 351 and two piles 352. The two piles 352 are vertically coaxial with the two springs 340 respectively. The piles 352 are fixed between the bottom of the Z-shaped plate 351 and the inner wall of the lower shell 110. The structure of the Z-shaped plate 351 integrates the support of the springs 340 and the support frame 370 into one, saving internal space. The two piles 352 respectively radially limit the springs 340, ensuring that the springs 340 are only compressed axially without lateral bending or tilting, ensuring that the pressure plate 330 is subjected to balanced force and that the locking action is smooth and consistent.

[0051] Furthermore, the support frame 370 is located between the pressure plate 330 and the elastic pad 360. The support frame 370 is made of metal material and serves as the fulcrum for the rotation of the buckle plate 390. It maintains structural rigidity and does not deform during long-term repeated locking operations, ensuring that the buckle plate 390 can accurately engage with the rectangular opening after each rotation. At the same time, the elastic pad 360 is located below it and independently transmits elastic force. The two functions are separated, so that the elastic force adjustment and rotation support do not interfere with each other, and it is convenient to replace them separately during later maintenance.

[0052] Furthermore, multiple anti-loss ropes 430 are arranged in a row at equal intervals. Each anti-loss rope 430 includes a rope body 431, a collar 432, and a magnet 433. The collar 432 is located inside the box body 420 and is fixedly sleeved on the outside of the rope body 431. The magnet 433 is located on the outside of the box body 420 and is fixedly connected to the outer end of the rope body 431. The equal-interval arrangement ensures a reasonable distance between the tools, preventing them from tangling when used. The rope body 431 is limited to the end of the box body 420 by the collar 432 to prevent excessive pulling and slippage. The magnet 433 can temporarily attach the end of the tool to the device housing or iron pole, enabling quick access and temporary fixation of the tool, further reducing the risk of the tool falling from a height.

[0053] Furthermore, the spring 340 is provided with a guide rod 700 inside. The bottom end of the guide rod 700 is fixedly connected to the top of the bottom support 350, and the top end of the guide rod 700 slides into the interior of the pressure plate 330. The guide rod 700 provides axial guidance inside the spring 340 to prevent the spring 340 from bending or deforming or being overloaded when compressed. At the same time, the sliding fit between the top end of the guide rod 700 and the interior of the pressure plate 330 can limit the maximum downward stroke of the pressure plate 330, avoid excessive compression that could cause fatigue damage to the spring 340, and extend the service life of the locking mechanism 300.

[0054] Furthermore, a pressure cap 800 is fastened to the top of the box 420. The pressure cap 800 is made of plastic material. The plastic pressure cap 800 is lightweight and has good insulation. The fastening structure facilitates quick opening and closing to retrieve tools. When closed, it provides protection for the anti-loss rope 430 and tools, preventing wind and sand and rainwater from corroding the rope 431 and tools. At the same time, it prevents tools from accidentally popping out when the box 420 moves with the device, thus enhancing the reliability of storage.

[0055] Example 2:

[0056] Combination Figure 1 , 2 and Figure 7 As shown, based on Embodiment 1, the storage mechanism 400 also includes a sheet metal 440, which is detachably installed at the bottom of the box body 420. The sheet metal 440 allows the magnet 433 to be easily fixed at any position outside the box body 420. By pulling the magnet 433 outward, the rope 431 can be straightened, effectively preventing the rope 431 from becoming tangled.

[0057] Example 3:

[0058] Combination Figure 2 and Figure 4 As shown, in the above embodiment, a connecting rod 600 is fixedly connected between the two upper clamps 220. The connecting rod 600 is made of metal material. The metal connecting rod 600 rigidly connects the two upper clamps 220 into one unit. The operator can pull the connecting rod 600 with one hand to simultaneously control the flipping and closing of the two upper clamps 220, so that the wires at both ends can be pressed in at the same time, which greatly reduces the operation steps. At the same time, the metal material gives the connecting rod 600 sufficient bending strength to meet the needs of long-term repeated operation.

[0059] Working principle and usage process of this invention:

[0060] In the initial state, the tools required for the operation are stored in the box 420 by the anti-loss rope 430, avoiding the need for the operator to hold the tools continuously, thereby improving the convenience and safety of high-altitude assembly. During installation, firstly, the two upper clamps 220 are flipped outward simultaneously by the connecting rod 600 to separate the upper clamps 220 from the lower clamps 210. Then, the wires are pressed into the arc-shaped grooves of the two lower clamps 210. Finally, the upper clamps 220 are closed around the connector 230 to complete the rough installation of the device and the wires.

[0061] During the closing of the upper clamp 220, the ball head rod 310 and the insert plate 320, which are fixedly connected to the upper clamp 220, move downwards. The insert plate 320 passes through the insertion port 131 on the cover 130 and presses down on the pressure plate 330. The pressure plate 330 compresses the spring 340, providing space for the insert plate 320 to move downwards. At the same time, the elastic pad 360 on the bottom support 350 presses the rectangular plate 380 upwards. The rectangular plate 380 pushes the left end of the buckle plate 390, causing the buckle plate 390 to rotate around the support frame 370. Its right end then smoothly inserts into the rectangular opening on the insert plate 320, realizing automatic locking of the insert plate 320, thereby firmly fixing the upper clamp 220 in the clamping position.

[0062] After the initial installation is complete, align the upper shell 510 with the lower shell 110, remove the necessary tools from the housing 420, and tighten the bolts 520 to complete the final fastening of the closure mechanism 500. After each device is installed, slide the slider 410 along the lower shell 110 to remove the entire housing 420 and transfer it to the next installation point for continued use.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] The rapid location and detection device for distribution network grounding faults provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A rapid location and detection device for grounding faults in distribution networks, characterized in that, include: The testing mechanism (100) includes a lower shell (110), an inner core (120) detachably installed on the bottom surface of the lower shell (110), and a cover (130) interference-fitted to the top of the lower shell (110). The clamping mechanism (200) includes two lower clamps (210) respectively embedded at both ends of the cover (130), an upper clamp (220) facing each other and attached to the top of the lower clamps (210), and a connector (230) detachably embedded in the top of the inner core (120) and rotatably connected to the upper clamp (220). The locking mechanism (300) includes a ball joint rod (310) rotatably fitted into the bottom of one end of the upper clamp (220), an insert plate (320) slidingly passing through the top of the cover (130) and fixedly connected to the bottom end of the ball joint rod (310), a pressure plate (330) fitting against the bottom of the insert plate (320), two springs (340) fixedly connected between the bottom of the pressure plate (330) and the top of the bottom support (350), and two springs (340) fixedly connected to the inner wall of the lower shell (110). The base support (350) between 40), the elastic pad (360) and the support frame (370) fixed to the top of the base support (350), the rectangular plate (380) fixed to the top of the elastic pad (360), the buckle plate (390) attached to the top of the rectangular plate (380) and rotatably connected to the support frame (370), and the L plate (391) attached to the top of the buckle plate (390). The insert plate (320) is provided with a rectangular opening suitable for snapping into the inner side of the buckle plate (390).

2. The rapid location and detection device for distribution network grounding faults according to claim 1, characterized in that, Also includes: The storage mechanism (400) includes two sliders (410) slidably mounted on one side of the lower shell (110), a box (420) fixed between the two sliders (410), and a plurality of anti-loss ropes (430) slidably passing through one end of the sliders (410). The closing mechanism (500) includes an upper shell (510) that fits against the top of the lower shell (110), four slots (530) screwed between the lower shell (110) and the upper shell (510), and a plurality of bolts (520) opened at both ends of the upper shell (510) and adapted to rotate the slots (530), wherein the height of the bolts (520) is less than the length of the slots (530).

3. The rapid location and detection device for distribution network grounding faults according to claim 2, characterized in that, The cover (130) has two insertion ports (131) and two L-ports (132). The two insertion ports (131) are located between the two lower clamps (210) and the two L-ports (132), respectively. The insertion ports (131) are suitable for insertion into the plate (320), and the two long sides at the top are both arc-shaped. The L-ports (132) are suitable for insertion into the L-plate (391).

4. The rapid location and detection device for distribution network grounding faults according to claim 2, characterized in that, The ball head rod (310) includes a ball and a cylinder. The ball is movably engaged inside the upper clamp (220). The cylinder rotates through the bottom of one end of the upper clamp (220). The ball is fixed to the top of the cylinder.

5. The rapid location and detection device for distribution network grounding faults according to claim 2, characterized in that, The bottom support (350) includes a Z-shaped plate (351) and two piles (352), which are vertically coaxial with two springs (340) respectively. The piles (352) are fixed between the bottom of the Z-shaped plate (351) and the inner wall of the lower shell (110).

6. The rapid location and detection device for distribution network grounding faults according to claim 2, characterized in that, The support frame (370) is located between the pressure plate (330) and the elastic pad (360), and the support frame (370) is made of metal.

7. The rapid location and detection device for distribution network grounding faults according to claim 2, characterized in that, Multiple anti-loss ropes (430) are arranged in a row with equal spacing. Each anti-loss rope (430) includes a rope body (431), a collar (432), and a magnet (433). The collar (432) is located inside the box body (420) and is fixedly sleeved on the outside of the rope body (431). The magnet (433) is located on the outside of the box body (420) and is fixedly connected to the outer end of the rope body (431).

8. The rapid location and detection device for distribution network grounding faults according to claim 2, characterized in that, The storage mechanism (400) also includes a sheet metal (440), which is detachably installed at the bottom of the box body (420).

9. The rapid location and detection device for distribution network grounding faults according to claim 2, characterized in that, A connecting rod (600) is fixed between the two upper clamps (220), the connecting rod (600) being made of metal.

10. The rapid location and detection device for distribution network grounding faults according to claim 2, characterized in that, The spring (340) has a guide rod (700) inside, the bottom end of the guide rod (700) is fixed to the top of the bottom support (350), and the top end of the guide rod (700) slides to the inside of the pressure plate (330); the top of the box (420) is fastened with a pressure cover (800), which is made of plastic material.

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