Adjustable wiring device for electrical equipment test
By designing a wiring device with bolt columns and snap-fit structures, the problem of traditional wiring clamps being unable to securely connect small nuts was solved, enabling stable connection of nuts of different specifications and multi-point synchronous testing, thus improving the accuracy and efficiency of power equipment testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA YANGTZE POWER
- Filing Date
- 2025-02-07
- Publication Date
- 2026-04-17
AI Technical Summary
In existing power equipment testing, traditional wiring clamps are difficult to securely connect to small nuts, resulting in increased contact resistance, uneven current distribution, and a lack of modular design, which affects the accuracy and efficiency of testing.
Design an adjustable wiring device including a bolt post, a clip, and a wiring clamp. The clip engages with a nut, the bolt post has a hollow structure, supports multi-point synchronous testing, is made of conductive metal, and has good adaptability and expandability.
It achieves a stable connection for nuts of different specifications, increases the contact area, supports multi-point synchronous testing, and improves the accuracy and convenience of power equipment testing.
Smart Images

Figure CN224137327U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power equipment testing, and in particular relates to an adjustable wiring device for power equipment testing. Background Technology
[0002] In the field of power equipment testing, terminal clamps are key components connecting test instruments and equipment, and their contact reliability directly affects the accuracy of test data. Currently, equipment widely used in power systems (such as transformers and switchgear) often comes with small nuts or bolts with limited protruding length, making it difficult for traditional terminal clamps to securely connect them. Conventional clamps, due to their large meshing surface, cannot make sufficient contact with small nuts, easily leading to problems such as incomplete connection and slippage. This results in increased contact resistance and uneven current distribution during testing, and in severe cases, even data deviation or test interruption.
[0003] In existing technologies, temporary welding, custom adapters, or forced hole enlargement are commonly used to solve such problems. However, welding damages the equipment surface and makes disassembly difficult; custom adapters are costly, lack versatility, and struggle to handle diverse nut specifications on-site; while hole enlargement may weaken the equipment's structural strength, posing safety hazards. Furthermore, large power equipment often requires simultaneous testing at multiple points, but existing connection devices lack modular design, making it difficult to flexibly expand the number of contact points, resulting in low testing efficiency and cumbersome operation.
[0004] Therefore, there is an urgent need for a connection device that combines adaptability, adjustability, and expandability, which can quickly adapt to equipment nuts of different sizes and shapes while ensuring safety and reliability, effectively increase the contact area, and support efficient connection of multiple test points, so as to improve the accuracy and convenience of power equipment testing. Summary of the Invention
[0005] To address the problems in the prior art, this utility model provides an adjustable wiring device for testing power equipment, including a bolt post and a wiring clamp. One end of the bolt post is connected to the wiring clamp, and the other end of the bolt post is provided with at least two clips. The outer surface of the clips is provided with threads, and a nut adapted to the thread structure is provided on the threads of the clips.
[0006] In a preferred embodiment, the sidewall of the wiring clamp is connected to one end of the connecting piece by a connecting bolt.
[0007] In a preferred embodiment, the connecting piece is provided with a plurality of connecting bolts, each connecting bolt being connected to a terminal clamp.
[0008] In a preferred embodiment, the end of the buckle is provided with a stepped latch structure. The buckle structure is normally a straight edge, but can also be an arc edge as needed to meet the different requirements of hexagonal nuts and round nuts.
[0009] In a preferred embodiment, the buckle has anti-slip texture on its buckle structure.
[0010] In a preferred embodiment, the bolt post and the terminal clamp are fixedly connected by threads.
[0011] In a preferred embodiment, the bolted column has a hollow interior.
[0012] In a preferred embodiment, the bolt post, clip, and terminal clamp are all made of materials with good electrical conductivity, such as conductive metals like iron, copper, silver, aluminum, and gold.
[0013] In a preferred embodiment, both the connecting piece and the connecting bolt are made of materials with good electrical conductivity, such as conductive metals like iron, copper, silver, aluminum, and gold.
[0014] The beneficial effects of this utility model are:
[0015] (1) The device can be adapted to different specifications of contact nuts or screws with a completely closed diameter and a larger diameter by means of a snap-fit and nut and a hollow bolt post, so that the device has good adaptability and adjustability.
[0016] (2) The device has good expandability and can perform multi-point synchronous testing by setting a connecting piece on the bolt column. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the structure of this utility model under multiple test conditions.
[0019] Figure 3 This is an enlarged view of point A in this utility model.
[0020] In the diagram: 1. Bolt post; 2. Nut; 3. Thread; 4. Clip; 5. Connecting piece; 6. Terminal clamp; 7. Connecting bolt. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0022] Example
[0023] like Figure 1-3The adjustable wiring device for testing power equipment shown includes a bolt post 1 and a wiring clamp 6. One end of the bolt post 1 is connected to the wiring clamp 6, and the other end of the bolt post 1 is provided with at least two clips 4. The outer surface of the clips 4 is provided with threads 3, and a nut 2 adapted to the thread structure is provided on the threads 3 of the clips 4.
[0024] Furthermore, the side wall of the wiring clamp 6 is connected to one end of the connecting piece 5 by a connecting bolt 7.
[0025] Furthermore, the connecting piece 5 is provided with several connecting bolts 7, and each connecting bolt 7 is connected to a terminal clamp 6.
[0026] Furthermore, the end of the buckle 4 is provided with a stepped bayonet structure.
[0027] Furthermore, the buckle 4 has anti-slip texture 8 on its buckle structure.
[0028] Furthermore, the bolt post 1 and the wiring clamp 6 are fixedly connected by threads.
[0029] Furthermore, the bolt column 1 has a hollow internal structure.
[0030] Furthermore, the bolt post 1, the buckle 4, and the wiring clamp 6 are all made of brass.
[0031] Furthermore, both the connecting piece 5 and the connecting bolt 7 are made of brass.
[0032] The above-mentioned device is used for testing as follows: tighten nut 2 to the top to open the clip 4, align it with the equipment nut on the test point, and then tighten nut 2 to gradually tighten the clip until it is finally fixed on the equipment nut. There is no need to replace the clip 4 when encountering equipment nuts of different specifications, which can quickly and efficiently test electrical equipment. When encountering long screw test points, the hollow area between the clip 4 and the bolt post 1 can also prevent the device from being affected. If multi-point synchronous testing is required, multiple terminal clamps 6 can be connected through connecting pieces 5 and connecting bolts 7 to perform multi-point synchronous testing, demonstrating the good expandability of the device.
Claims
1. An electric power equipment test adjustable connection device comprising a stud (1) and a connection collet (6), characterized in that, One end of the bolt post (1) is connected to the wiring clamp (6), and the other end of the bolt post (1) is provided with at least two clips (4). The outer surface of the clips (4) is provided with threads (3), and a nut (2) that is compatible with the thread structure is provided on the threads (3) of the clips (4).
2. An electric power equipment test adjustable connection device according to claim 1, characterized in that, The side wall of the wiring clamp (6) is connected to one end of the connecting piece (5) by a connecting bolt (7).
3. An electric power equipment test adjustable connection device according to claim 2, wherein, The connecting piece (5) is provided with several connecting bolts (7), and each connecting bolt (7) is connected to a wiring clamp (6).
4. An electric power equipment test adjustable connection device according to claim 1, wherein, The buckle (4) is provided with a stepped bayonet structure at its end.
5. An electrical device test adjustable wiring device according to claim 1, wherein, The buckle (4) has anti-slip texture (8) on its buckle structure.
6. An electric power equipment test adjustable connection device according to claim 1, wherein, The bolt column (1) and the wiring clamp (6) are fixedly connected by threads.
7. An electric power equipment test adjustable connection device according to claim 1, wherein, The bolt column (1) has a hollow interior.
8. An electric power equipment test adjustable connection device according to claim 1, wherein, The bolt post (1), buckle (4) and wiring clamp (6) are all made of materials with good electrical conductivity.
9. An electric power equipment test adjustable connection device according to claim 2, wherein, Both the connecting piece (5) and the connecting bolt (7) are made of materials with good electrical conductivity.