Distributed fault diagnosis device for distribution network line

Abstract

The utility model relates to power equipment technical field, concretely relates to distribution type fault diagnosis device for distribution network line, including fixed plate, the fixed plate front assembly has fixed device, the fixed plate front assembly has fault diagnosis appearance, the fixed device includes protection cover, the protection cover fixed connection in the fixed plate front, the fixed plate front is rotated and is connected with the ring of bearing, the ring front rotation is connected with first hinged link, the utility model drives screw rod to descend with knob, screw rod drives sleeve to descend, sleeve drives connecting block to descend, and connecting block slides in the limiting sleeve inner wall, and the stability and accuracy of ensuring movement, the ring clockwise rotation drives another two sets of clamping block to move to the middle part of fixed plate, finally make fixed plate fixed connection on the cable outer wall, and the fixed plate is fixed on the cable outer wall, and is diagnosed through fault diagnosis appearance, ensures that the fault of cable can be accurately detected and positioned.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a distributed fault diagnosis device for distribution network lines. Background Technology

[0002] With the increasing number of high-voltage transmission lines, these lines traverse complex terrains and harsh climates, resulting in a wide variety of faults affecting a broad area. These faults can cause short circuits, tripping, and power outages, leading to large-scale power grid blackouts. However, in many rural areas, especially mountainous regions, grounding and short-circuit faults are still diagnosed by sequentially disconnecting power sections.

[0003] Patent document CN219936012U discloses a distributed fault location device for power transmission lines, belonging to the field of power equipment technology. It includes a lower housing and an upper housing, with the upper housing detachably mounted on top of the lower housing. Semi-circular holes are provided on both the front and rear sides of both the upper and lower housings. Two mounting plates are fixedly installed on the bottom inner wall of the lower housing, and fault detectors are fixedly installed on the top of each mounting plate. Two compression springs are fixedly connected to the top inner wall of the upper housing. The cooperation between positioning wheels and traveling wheels facilitates the movement of the fault location device along the power transmission line, greatly improving the accuracy and reliability of fault location. For complex power grid structures with branch lines, measurement points can be configured at the branch points. The accuracy of fault location is improved by reducing the traveling wave location interval and the traveling wave attenuation intensity. The reliability of fault location is improved through a redundancy mechanism among multiple distributed fault diagnosis devices.

[0004] Although the aforementioned application documents improve the accuracy of fault location by reducing the traveling wave location range and the traveling wave attenuation intensity, and improve the reliability of fault location through the redundancy mechanism between multiple distributed fault diagnosis devices, they cannot be installed on the outer wall of lines of different sizes, which greatly limits their use.

[0005] Therefore, a distributed fault diagnosis device for distribution network lines is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a distributed fault diagnosis device for distribution network lines, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: including a fixing plate, wherein a fixing device is mounted on the front side of the fixing plate, and a fault diagnostic instrument is mounted on the front side of the fixing plate;

[0008] The fixing device includes a protective cover, which is fixedly connected to the front of the fixing plate. A ring is rotatably connected to the front of the fixing plate via a bearing. A first hinge rod is rotatably connected to the front of the ring. A connecting rod is fixedly sleeved on the outer wall of the first hinge rod. A second hinge rod is rotatably connected to the front of the connecting rod. A moving block is fixedly sleeved on the outer wall of the second hinge rod. A clamping block is fixedly connected to the bottom of the moving block. A connecting block is fixedly connected to the top of the moving block. A limit sleeve is fixedly connected to the front of the fixing plate. A driving assembly for driving the ring to rotate is assembled on the front of the fixing plate.

[0009] Preferably, the drive assembly includes a fixing block, which is fixedly connected to the front of the fixing plate, and a threaded rod is threaded through the top of the fixing plate, with a knob fixedly connected to the top of the threaded rod.

[0010] Preferably, a sleeve is fixedly connected to the bottom of the threaded rod, and the sleeve is rotatably connected to the top of the connecting block.

[0011] Preferably, the clamping block has anti-slip grooves on its side for preventing slippage.

[0012] Preferably, the front of the fixing plate is equipped with a locking device to prevent the ring from reversing.

[0013] Preferably, the locking device includes an arc-shaped groove, which is formed on the front of the protective cover, and a ratchet is fixedly sleeved on the outer wall of the ring.

[0014] Preferably, the front of the fixing plate is hinged with a pawl, the front of the pawl is fixedly connected with a drive rod, and the front of the drive rod is fixedly connected with a handle.

[0015] Compared with the prior art, this utility model provides a distributed fault diagnosis device for distribution network lines, which has the following beneficial effects:

[0016] 1. The knob drives the threaded rod to descend, the threaded rod drives the sleeve to descend, the sleeve drives the connecting block to descend, and the connecting block slides on the inner wall of the limit sleeve to ensure the stability and accuracy of the movement. The ring rotates clockwise to drive the other two sets of clamping blocks to move towards the center of the fixed plate, so that the fixed plate is finally fixedly connected to the outer wall of the cable. After the fixed plate is fixed to the outer wall of the cable, the fault diagnosis instrument is used to diagnose the problem and ensure that the cable fault can be accurately detected and located.

[0017] 2. When the ratchet rotates counterclockwise, the pawl hook engages with the ratchet teeth, preventing the ratchet from rotating counterclockwise. When the ratchet rotates clockwise, the pawl hook slides over the ratchet teeth, allowing the ratchet to rotate clockwise. Through the ratchet and pawl mechanism, it is ensured that the clamping block will not loosen due to external force during the fixing process, thus improving the reliability of the fixing. When disassembly is required, the handle is turned, and the handle drives the drive rod, which rotates counterclockwise around the hinge point of the pawl. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front sectional view of the present invention.

[0020] Figure 3 This is a front view of part of the structure of this utility model;

[0021] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Fixing plate; 2. Fixing device; 21. Protective cover; 22. Limiting sleeve; 23. Connecting block; 24. Moving block; 25. Clamping block; 26. Ring; 27. Connecting rod; 28. Second hinge rod; 29. ​​First hinge rod; 210. Fixing block; 211. Threaded rod; 212. Knob; 213. Anti-slip groove; 3. Locking device; 31. Arc groove; 32. Drive rod; 33. Handle; 34. Ratchet; 35. Pawl; 4. Fault diagnostic instrument. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] See Figure 1 - Figure 4 This embodiment provides a distributed fault diagnosis device for distribution network lines, including a fixing plate 1, a fixing device 2 mounted on the front of the fixing plate 1, and a fault diagnosis instrument 4 mounted on the front of the fixing plate 1.

[0026] The fixing device 2 includes a protective cover 21, which is fixedly connected to the front of the fixing plate 1. A ring 26 is rotatably connected to the front of the fixing plate 1 via a bearing. A first hinge rod 29 is rotatably connected to the front of the ring 26. A connecting rod 27 is fixedly sleeved on the outer wall of the first hinge rod 29. A second hinge rod 28 is rotatably connected to the front of the connecting rod 27. A moving block 24 is fixedly sleeved on the outer wall of the second hinge rod 28. A clamping block 25 is fixedly connected to the bottom of the moving block 24. A connecting block 23 is fixedly connected to the top of the moving block 24. A limit sleeve 22 is fixedly connected to the front of the fixing plate 1. A drive assembly for driving the ring 26 to rotate is assembled on the front of the fixing plate 1.

[0027] The drive assembly includes a fixing block 210, which is fixedly connected to the front of the fixing plate 1. A threaded rod 211 is threaded through the top of the fixing plate 1, and a knob 212 is fixedly connected to the top of the threaded rod 211.

[0028] A sleeve is fixedly connected to the bottom of the threaded rod 211, and the sleeve is rotatably connected to the top of the connecting block 23.

[0029] The clamping block 25 has anti-slip grooves 213 on its side for preventing slipping.

[0030] In practical use, the above-mentioned device is rotated by turning the knob 212, which causes the threaded rod 211 to descend, the threaded rod 211 to descend the sleeve, the sleeve to descend the connecting block 23, the connecting block 23 to slide on the inner wall of the limiting sleeve 22, the connecting block 23 to descend the moving block 24, the moving block 24 to descend the clamping block 25, and during the descent of the moving block 24, the connecting rod 27 to move to the bottom, the connecting rod 27 to push the ring 26 to rotate clockwise, the clockwise rotation of the ring 26 to move the other two sets of clamping blocks 25 to the middle of the fixing plate 1, so that the fixing plate 1 is fixedly connected to the outer wall of the cable. The fault diagnosis is performed by the fault diagnosis instrument 4, which is existing technology and will not be described in detail here.

[0031] Example 2

[0032] See Figure 1 - Figure 4 Based on Embodiment 1, the front of the fixing plate 1 is equipped with a locking device 3 for preventing the ring 26 from reversing.

[0033] The locking device 3 includes an arc-shaped groove 31, which is opened on the front of the protective cover 21, and a ratchet 34 is fixedly sleeved on the outer wall of the ring 26.

[0034] The front of the fixed plate 1 is hinged with a pawl 35, the front of the pawl 35 is fixedly connected with a drive rod 32, and the front of the drive rod 32 is fixedly connected with a handle 33.

[0035] In practical use, when the ring 26 rotates counterclockwise, the hook of the pawl 35 engages with the teeth of the ratchet 34, preventing the ratchet 34 from rotating counterclockwise. When the ratchet 34 rotates clockwise, the hook of the pawl 35 slides over the teeth of the ratchet 34, allowing the ratchet 34 to rotate clockwise. When disassembly is required, the handle 33 is turned, which drives the drive rod 32. The drive rod 32 rotates counterclockwise around the hinge point of the pawl 35. At this time, there is no limit from the pawl 35, and the ratchet 34 can rotate counterclockwise.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0037] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A distributed fault diagnosis device for distribution network lines, characterized in that: Includes a fixing plate (1), the fixing plate (1) is equipped with a fixing device (2) on its front side, and a fault diagnostic instrument (4) is equipped with the fixing plate (1) on its front side; The fixing device (2) includes a protective cover (21), which is fixedly connected to the front of the fixing plate (1). A ring (26) is rotatably connected to the front of the fixing plate (1) via a bearing. A first hinge rod (29) is rotatably connected to the front of the ring (26). A connecting rod (27) is fixedly sleeved on the outer wall of the first hinge rod (29). A second hinge rod (28) is rotatably connected to the front of the connecting rod (27). A moving block (24) is fixedly sleeved on the outer wall of the second hinge rod (28). A clamping block (25) is fixedly connected to the bottom of the moving block (24). A connecting block (23) is fixedly connected to the top of the moving block (24). A limit sleeve (22) is fixedly connected to the front of the fixing plate (1). A driving component for driving the ring (26) to rotate is assembled on the front of the fixing plate (1).

2. The distributed fault diagnosis device for distribution network lines according to claim 1, characterized in that: The drive assembly includes a fixing block (210) which is fixedly connected to the front of the fixing plate (1). A threaded rod (211) is threaded through the top of the fixing plate (1), and a knob (212) is fixedly connected to the top of the threaded rod (211).

3. The distributed fault diagnosis device for distribution network lines according to claim 2, characterized in that: A sleeve is fixedly connected to the bottom of the threaded rod (211), and the sleeve is rotatably connected to the top of the connecting block (23).

4. The distributed fault diagnosis device for distribution network lines according to claim 3, characterized in that: The clamping block (25) has anti-slip grooves (213) on its side for preventing slipping.

5. The distributed fault diagnosis device for distribution network lines according to claim 1, characterized in that: The fixing plate (1) is equipped with a locking device (3) on the front to prevent the ring (26) from reversing.

6. The distributed fault diagnosis device for distribution network lines according to claim 5, characterized in that: The locking device (3) includes an arc groove (31) which is opened on the front of the protective cover (21), and a ratchet (34) is fixedly sleeved on the outer wall of the ring (26).

7. The distributed fault diagnosis device for distribution network lines according to claim 6, characterized in that: The fixed plate (1) has a pawl (35) hinged to its front side, and a drive rod (32) is fixedly connected to the front side of the pawl (35). A handle (33) is fixedly connected to the front side of the drive rod (32).

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