Portable voltage transformer secondary terminal measurement wiring device
By designing a stable connection structure in the portable voltage transformer secondary terminal measurement wiring device, the problem of general connection wires being easily swinged or fall off under external force is solved, and higher wiring efficiency and electrical signal transmission stability are achieved.
Patent Information
- Application Number
- CN202421191627.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing portable voltage transformer secondary terminal measurement wiring device cannot provide sufficient support and fixation due to its simple structure, which causes the general-purpose connecting wire to swing or fall off under the action of external forces, resulting in equipment failure and malfunction of the protection device.
A measurement wiring device including an insulating cylinder and a terminal body is designed, and a stable connection structure is adopted, including a conductor cylinder, a telescopic bottom cylinder, a telescopic bottom cylinder, a telescopic bottom cylinder, a power spring, a connecting head and a barb hook. Through the cooperation of these structures and the clamping contact of the pressing screw, a stable connection between the insulating cylinder and the terminal body is achieved.
Through the design of the stable connection structure, the wiring efficiency is improved, and the general connection wire is prevented from swinging or falling off under external forces, which enhances the stability of line connection and electrical signal transmission.
Smart Images
Figure CN222882724U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical engineering, in particular to a portable voltage transformer secondary terminal measurement wiring device. Background Art
[0002] The portable voltage transformer secondary terminal measurement and wiring device is a portable device used to measure and wire the secondary terminals of voltage transformers in power systems. This device is mainly used to safely and accurately connect and measure the voltage signal on the secondary side of the voltage transformer in order to monitor, analyze and maintain the power system.
[0003] When a universal connecting wire is inserted into the secondary terminal of a voltage transformer for contact measurement, the secondary terminal of the voltage transformer has limited internal space and a relatively simple structure, which cannot provide sufficient support and fixation for the connecting wire, making it difficult for the universal connection to be stably fixed therein. This instability can cause the universal connecting wire to swing or fall off easily under the action of a slight external force, thereby causing equipment failure and malfunction of the protection device. Therefore, it is necessary to design a measurement wiring device with a stable connection method and reliable performance. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides the following technical solutions: a portable voltage transformer secondary terminal measurement wiring device, comprising an insulating cylinder and a terminal body, a connecting hole is provided at the top of the terminal body, a wiring hole is provided at the right side of the terminal body, the connecting hole and the wiring hole are connected, a fixed circular plate is fixedly installed on the inner ring surface of the connecting hole and located on the upper side of the wiring hole, the fixed circular plate is threadedly connected to a pressing screw, and a stable connection structure is provided inside the insulating cylinder.
[0005] As an improvement of the above technical solution, the stable connection structure includes a conductor cylinder, a telescopic bottom cylinder, a telescopic lower cylinder, a booster spring, a connector and a barbed hook. The conductor cylinder is fixedly mounted on the inner ring surface of the insulating cylinder, the telescopic bottom cylinder is fixedly mounted on the bottom end of the conductor cylinder, the telescopic lower cylinder is movably clamped in the interior of the telescopic bottom cylinder, the booster spring is fixedly mounted on the top end of the telescopic lower cylinder, the top end of the booster spring is fixedly mounted on the top inner wall of the telescopic bottom cylinder, the connector is fixedly mounted on the bottom end of the telescopic lower cylinder, the barbed hook is fixedly mounted on the bottom end of the conductor cylinder and is located on the outside of the telescopic bottom cylinder, and the insulating cylinder and the terminal body are stably connected together through the cooperation of the stable connection structure.
[0006] As an improvement of the above technical solution, a horizontal connecting groove is provided on the top of the pressing screw, and the connecting head is contacted and fixed by the horizontal connecting groove and the connecting head through movable clamping.
[0007] As an improvement of the above technical solution, there are multiple assisting springs, and the multiple assisting springs are arranged in a circular shape on the top inner wall of the telescopic bottom tube. The stability of assisting the barbed hook is improved by the multiple assisting springs.
[0008] As an improvement of the above technical solution, there are multiple barbed hooks, which are evenly arranged in a circle at the bottom of the conductor cylinder. The multiple barbed hooks hook the pressing screw at the same time to increase the stability of the connection between the insulation cylinder and the terminal body.
[0009] The beneficial effects of the utility model are as follows: when it is necessary to insert the universal connecting wire into the connecting hole for electric signal transmission, the stable connecting structure is engaged and contacted with the pressing screw of non-fixed height through cooperation between the connecting structures, and then the universal connecting wire is inserted into the conductor cylinder, so that the electric signal is transmitted to the universal connecting wire through the telescopic lower cylinder and other structures. While the wiring efficiency is improved by the wiring device, the universal connecting wire is prevented from swinging or falling off when subjected to external force, thereby improving the stability of line connection and electric signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is the front view of the voltage transformer secondary terminal measurement wiring device of the utility model;
[0011] Figure 2 This is a cross-sectional view of the internal structure of the utility model;
[0012] Figure 3 For this utility model Figure 2 A magnified view of the structure in the middle.
[0013] Figure numerals: 1. Insulating cylinder; 2. Terminal body; 3. Connecting hole; 4. Wiring hole; 5. Fixed circular plate; 6. Pressing screw; 7. Conductor cylinder; 71. Telescopic bottom cylinder; 72. Telescopic lower cylinder; 73. Assist spring; 74. Connecting head; 75. Barbed hook. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0015] Reference Figure 1 ,exist Figure 1 In the figure, a points to the front view, and b points to the right view. The above views are only used to understand the plan.
[0016] See also Figure 1-3The utility model provides a technical solution: a portable voltage transformer secondary terminal measurement wiring device, including an insulating cylinder 1 and a terminal body 2, a connecting hole 3 is opened at the top of the terminal body 2, a wiring hole 4 is opened on the right side of the terminal body 2, the connecting hole 3 and the wiring hole 4 are connected, a fixed circular plate 5 is fixedly installed on the inner ring surface of the connecting hole 3 and located on the upper side of the wiring hole 4, the fixed circular plate 5 is threadedly connected to a pressing screw 6, and a stable connection structure is arranged inside the insulating cylinder 1.
[0017] Specifically, the stable connection structure includes a conductor cylinder 7, a telescopic bottom cylinder 71, a telescopic lower cylinder 72, a booster spring 73, a connector 74 and a barbed hook 75. The conductor cylinder 7 is fixedly mounted on the inner ring surface of the insulating cylinder 1, the telescopic bottom cylinder 71 is fixedly mounted on the bottom end of the conductor cylinder 7, the telescopic lower cylinder 72 is movably clamped in the inside of the telescopic bottom cylinder 71, the booster spring 73 is fixedly mounted on the top of the telescopic lower cylinder 72, the top of the booster spring 73 is fixedly mounted on the top inner wall of the telescopic bottom cylinder 71, the connector 74 is fixedly mounted on the bottom end of the telescopic lower cylinder 72, and the barbed hook 75 is fixedly mounted on the bottom end of the conductor cylinder 7 and is located on the outside of the telescopic bottom cylinder 71.
[0018] In this embodiment, the insulating cylinder 1 and the terminal body 2 are stably connected together through the cooperation of the stable connection structure.
[0019] Specifically, a horizontal connection groove is formed on the top of the pressing screw 6 .
[0020] In this embodiment, the connecting head 74 is contacted and fixed by the horizontal connecting groove and the connecting head 74 being movably engaged.
[0021] Specifically, a plurality of booster springs 73 are provided, and the plurality of booster springs 73 are circularly arranged on the top inner wall of the telescopic bottom cylinder 71 .
[0022] In this embodiment, the stability of assisting the barbed hook 75 is improved by using a plurality of assisting springs 73 .
[0023] Specifically, a plurality of barbed hooks 75 are provided, and the plurality of barbed hooks 75 are evenly arranged in a circular shape at the bottom of the conductor cylinder 7 .
[0024] In this embodiment, the plurality of barbed hooks 75 hook the pressing screw 6 at the same time, thereby increasing the stability of the connection between the insulating cylinder 1 and the terminal body 2 .
[0025] When in use, insert the wire into the connecting hole 3 through the wiring hole 4, use a tool to rotate the pressing screw 6, and the pressing screw 6 is threadedly connected with the fixed circular plate 5 so that the pressing screw 6 moves downward to press and fix the wire. When the wiring measurement inside the terminal body 2 is required, hold the insulating cylinder 1 by hand to insert the telescopic bottom cylinder 71, the telescopic lower cylinder 72 and the barbed hook 75 into the connecting hole 3, and the telescopic lower cylinder 72 drives the connecting head 74 to move downward to engage and contact with the horizontal connecting groove at the top of the pressing screw 6. At the same time, the barbed hook 75 moves downward to hook the pressing screw 6. Since the telescopic lower cylinder 72 is designed to be telescopic, no matter how far the pressing screw 6 is from the top of the connecting hole 3, The connector 74 can be clamped and contacted with the horizontal connecting groove at the top of the pressing screw 6. The cooperation between the telescopic bottom cylinder 71, the telescopic lower cylinder 72 and the assist spring 73 increases the stability of the barbed hook 75 when hooking the pressing screw 6. At the same time, the pressing screw 6 is hooked by multiple barbed hooks 75 to increase the overall stability of the connection between the insulating cylinder 1 and the terminal body 2. The universal connecting wire is then inserted into the conductor cylinder 7, so that the electrical signal is transmitted to the universal connecting wire through the telescopic lower cylinder 72 and other structures. While the wiring efficiency is improved through the wiring device, the universal connecting wire is prevented from swinging or falling off when subjected to external force, thereby improving the stability of line connection and electrical signal transmission.
[0026] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.
Claims
1. A portable voltage transformer secondary terminal measurement wiring device, comprising an insulating cylinder (1) and a terminal body (2), characterized in that: A connection hole (3) is provided at the top of the terminal body (2), a connection hole (4) is provided at the right side of the terminal body (2), the connection hole (3) and the connection hole (4) are connected, a fixed circular plate (5) is fixedly installed on the inner ring surface of the connection hole (3) and located on the upper side of the connection hole (4), the fixed circular plate (5) is connected to a pressing screw (6) by threading, and a stable connection structure is provided inside the insulating cylinder (1).
2. A portable voltage transformer secondary terminal measurement wiring device according to claim 1, characterized in that: The stable connection structure comprises a conductor cylinder (7), a telescopic bottom cylinder (71), a telescopic lower cylinder (72), a booster spring (73), a connector (74) and a barbed hook (75); the conductor cylinder (7) is fixedly mounted on the inner ring surface of the insulating cylinder (1); the telescopic bottom cylinder (71) is fixedly mounted on the bottom end of the conductor cylinder (7); the telescopic lower cylinder (72) is movably clamped inside the telescopic bottom cylinder (71); the booster spring (73) is fixedly mounted on the top end of the telescopic lower cylinder (72); the top end of the booster spring (73) is fixedly mounted on the top inner wall of the telescopic bottom cylinder (71); the connector (74) is fixedly mounted on the bottom end of the telescopic lower cylinder (72); and the barbed hook (75) is fixedly mounted on the bottom end of the conductor cylinder (7) and is located outside the telescopic bottom cylinder (71).
3. A portable voltage transformer secondary terminal measurement wiring device according to claim 1, characterized in that: A horizontal connecting groove is provided on the top of the pressing screw (6).
4. A portable voltage transformer secondary terminal measurement wiring device according to claim 2, characterized in that: A plurality of booster springs (73) are provided, and the plurality of booster springs (73) are arranged in a circular shape on the top inner wall of the telescopic bottom cylinder (71).
5. A portable voltage transformer secondary terminal measurement wiring device according to claim 2, characterized in that: A plurality of barbed hooks (75) are provided, and the plurality of barbed hooks (75) are evenly arranged in a circular shape at the bottom of the conductor cylinder (7).