A terminal block for parallel power supply in a power line

Abstract

This utility model provides a terminal block for parallel power extraction from a live electrical line. The terminal block includes: a main body, a clamping block, and a clamping nut; the main body has a stud structure and a wire connection groove, which divides the stud in two; the clamping block mates with the wire connection groove, with both ends extending beyond the groove to form a pressure-bearing portion; the clamping nut applies pressure to the pressure-bearing portion by tightening; contacts are also provided in the wire connection groove and / or on the clamping block for contacting and conducting with the conductor core of the live line within the groove; the main body and / or the clamping block also have lead-out points that connect with the contacts for electrical connection to the power extraction line. This utility model utilizes the pressure generated by the screw connection to push the clamping block to press the conductor core of the live line, thereby achieving a secure fixation and electrical connection. This terminal and its operation method are highly standardized, safe, and easy to install and remove, reducing the technical requirements for personnel and preventing safety accidents.

Description

Technical Field

[0001] This utility model belongs to the field of power tool technology, specifically relating to a terminal block for parallel power supply on a live wire. Background Technology

[0002] In electrical applications, power is often taken from live lines. For example, during uninterruptible power supply (UPS) operations, a bypass power supply is required to establish a power supply bypass. Then, the meter or circuit breaker is inspected or replaced. After the operation is completed and the main power supply is restored, the bypass power supply is removed, thus completing a UPS operation.

[0003] However, how to achieve safe, convenient, and standardized power extraction operations on energized main lines has become a difficult problem for technicians. Traditional manual paralleling methods are highly dangerous, have uncontrollable contact conditions, are complex to operate, and are prone to damaging the main line, resulting in numerous drawbacks. At present, there is no tool or equipment product that can provide standardized operation for power extraction operations in the middle section of energized lines. Utility Model Content

[0004] The main objective of this invention is to provide a terminal block for parallel power supply on a live wire, in order to overcome the shortcomings of the prior art.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This utility model provides a terminal block for parallel power extraction on a live wire, comprising: a main body, a pressure block, and a clamping nut; The main body is provided with a stud structure and has a wire connection groove, which divides the stud into two parts along the radial direction of the stud structure. The pressure block can cooperate with the wire connection groove and slides along the axial direction of the stud structure within the wire connection groove. When the pressure block and the wire connection groove are engaged, the pressure blocks at both ends of the wire connection groove extend beyond the wire connection groove to form a pressure-bearing part. The clamping nut can cooperate with the thread of the stud structure to apply pressure to the pressure-bearing part by tightening. The conductor connection groove and / or the pressure block are further provided with contacts for contacting and conducting with the conductor core of the live line in the conductor connection groove. The main body and / or the pressure block are further provided with lead-out points that are connected to the contacts for electrical connection with the power supply line.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a standardized terminal block for power extraction from the middle section of a live power line. The conductor core of the live power line is embedded into the conductor connection groove along the axial direction of the stud structure. Then, a pressure block is placed in the conductor connection groove, and an insulated nut is rotated and tightened on the stud structure. The pressure generated by the screw connection pushes the pressure block to press the conductor core of the live power line, thereby achieving a firm fixation and electrical connection. This terminal block and its operation method are highly standardized, safe, and easy to install and remove, reducing the technical requirements for personnel and avoiding safety accidents caused by non-standard operation.

[0007] The above description is only an overview of the technical solution of this utility model. In order to enable those skilled in the art to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described below with reference to the accompanying drawings. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the combined structure of the wiring terminals provided in one embodiment of this application; Figure 2 This is a schematic diagram of another view of the combined structure of the wiring terminals provided in one embodiment of this application; Figure 3 This is a schematic diagram of another viewpoint combination structure of the wiring terminals provided in one embodiment of this application; Figure 4 This is a schematic diagram of the structure of the locking nut of the terminal block provided in one embodiment of this application; Figure 5 This is a schematic diagram of the structure of the clamping block of the wiring terminal provided in one embodiment of this application; Figure 6 This is a schematic diagram of the main body of the wiring terminal provided in one embodiment of this application.

[0010] Explanation of reference numerals in the attached figures: 1. Main body; 2. Pressure block; 3. Locking nut; 11. Stud structure; 12. Wire connection groove; 13. Wire hole; 131. First stepped hole section; 132. Second stepped hole section; 14. First screw hole; 15. Second screw hole; 21. Pressure bearing part; 22. Middle part. Detailed Implementation

[0011] In view of the shortcomings of the prior art, the inventor of this utility model, through long-term research and extensive practice, has proposed the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0012] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0013] See Figures 1-6 As shown, an embodiment of this utility model provides a terminal block for parallel power extraction on a live wire, which includes: a main body 1, a pressure block 2, and a clamping nut; The main body 1 is provided with a stud structure 11 and a wire connection groove 12. The wire connection groove 12 divides the stud into two parts along the radial direction of the stud structure 11. The pressure block 2 can cooperate with the wire connection groove 12 and slides along the axial direction of the stud structure 11 within the wire connection groove. When the pressure block 2 and the wire connection groove 12 are engaged, the pressure blocks 2 at both ends of the wire connection groove 12 extend beyond the wire connection groove 12 to form a pressure bearing part 21. The clamping nut can be threaded into the stud structure 11 and is used to apply pressure to the pressure bearing part 21 by tightening. The conductor connection groove 12 and / or the pressure block 2 are also provided with contacts for contacting and conducting with the conductor core of the live line in the conductor connection groove 12. The main body 1 and / or the pressure block 2 are also provided with lead-out points that are connected to the contacts for electrical connection with the power supply line.

[0014] In the above embodiments, the provided terminal block uses the turning force of the locking nut 3 to transmit the power to the wire core of the live line through the pressure block 2, so that the pressure block 2 and the bottom of the wire connection groove 12 form an upper and lower clamping structure, clamping the wire core to achieve fixation and conduction. Then, the current can be discharged through the pressure block 2 itself or the conductive body set at the bottom of the groove (for example, the entire wire connection groove 12 is made of metal, or the wire connection groove 12 is made of insulating material, but the bottom of the groove is embedded with a metal block, etc.). Then, the current can be electrically connected to the power line through the lead-out point on the main body (such as the terminal post or the terminal hole in the preferred example below), or through the lead-out point set on the pressure block 2 (for example, the entire pressure block 2 is made of metal, and the outer surface is provided with a terminal post or other wiring structure, etc., or a metal block can be embedded in the insulating material pressure block 2, etc.). Thus, without interrupting the power supply, by stripping the middle section of the live line, parallel power can be achieved through standardized operations to complete uninterrupted maintenance operations or other operations that require parallel power supply.

[0015] Regarding some specific structural features, in some implementations, the bottom of the conductor connecting groove 12 and the pressure block 2 together form a first clamping structure surrounding the conductor core of the live line.

[0016] In some embodiments, at both ends of the conductor connection groove 12, the pressure-bearing part 21 and the main body 1 enclose to form a second clamping structure that matches the shape of the insulation sheath of the live line.

[0017] Therefore, by clamping the wire core with the first clamping structure and the insulation with the second clamping structure, the circuit can be fixed more firmly, avoiding relative sliding between the insulation and the wire core during operation, and preventing the insulation from shrinking and exposing the wire core, thus further improving the safety factor.

[0018] More specifically, in some embodiments, the stud structure 11 is a conductor, and the body 1 also includes an insulating shell surrounding the bottom of the wire connection groove 12, the portion of the insulating shell opposite to the pressure-bearing portion 21 forming the second clamping structure with the pressure-bearing portion 21.

[0019] Regarding the specific implementation of the electrical connection, in some embodiments, the main body 1 is provided with a wire hole 13 and a first screw hole 14. The first screw hole 14 communicates with the wire hole 13, and the inner wall of the wire hole 13 is in a conductive state with the inner wall of the wire connection groove 12. When the power supply line is inserted into the wire hole 13 and a screw is screwed into the first screw hole 14, the power supply line is pressed into the wire hole 13.

[0020] For details of some implementation schemes, please refer to [link / reference]. Figure 6 As shown, the through hole 13 has a stepped hole structure. The diameter of the first stepped hole section 131 from the outside to the inside matches the outer diameter of the insulation of the power supply line, and the diameter of the second stepped hole section 132 matches the diameter of the wire core of the power supply line. Through the through hole 13 and the screw hole, the end wire core of the power supply line can be firmly fixed, achieving a stable electrical connection.

[0021] In some embodiments, the main body 1 is further provided with a second screw hole 15, which exposes the stud structure 11. When a screw is screwed into the second screw hole 15, the stud structure 11 is fixedly connected to the insulating shell as a whole. The above method divides the main body 1 into two parts: an insulating shell and a metal stud structure 11. Holes can be made on the stud structure 11 (such as the above-mentioned wire hole 13, the first screw hole 14, and the second screw hole 15). Holes are also made at corresponding positions on the insulating shell. After the two are screwed together through the second screw hole 15, the wiring of the power line can be carried out through the wire hole 13 and the first screw hole 14. The above split design meets the requirements of insulation and wiring, and the insulating shell and the stud structure 11 can be processed and produced separately, which significantly reduces the production difficulty and cost.

[0022] Regarding the specific structure of the pressure block 2, in some embodiments, when viewed radially along the stud structure 11, the middle portion 22 of the pressure block 2 located between the pressure-bearing portions 21 protrudes from the pressure-bearing portions 21 in the direction of the clamping nut, so that when the clamping nut clamps the pressure-bearing portion 21, the protruding portion is embedded in the screw hole of the clamping nut.

[0023] In some implementations, the shape and diameter of the protrusion match the threaded inner diameter of the clamping nut.

[0024] The preferred embodiment described above, through the external structural design of the pressure block 2, ensures that during the tightening of the locking nut 3, the protruding part of the pressure block 2 is positioned within the threaded hole of the locking nut 3, and is confined and limited by the wire connection groove 12 and the inner thread of the locking nut 3, making it less prone to deflection, displacement, or other adverse phenomena, thus improving operational efficiency and avoiding problems such as poor crimping.

[0025] Furthermore, in some embodiments, the clamping nut is a blind-hole nut. Preferably, the clamping nut is a blind-hole nut made of insulating material, which provides safe insulation during operation and avoids the risk of electric shock caused by exposing the stud structure 11, as is the case with through-hole nuts.

[0026] As can be clearly seen from the above embodiments, the present invention provides a standardized terminal block for power extraction from the middle section of a live line. The conductor core of the live line is embedded into the conductor connection groove along the axial direction of the stud structure. Then, a pressure block is placed in the conductor connection groove, and an insulated nut is rotated and tightened on the stud structure. The pressure generated by the screw connection pushes the pressure block to press the conductor core of the live line, thereby achieving a firm fixation and electrical connection. This terminal block and its operation method are highly standardized, safe, and easy to install and remove, reducing the technical requirements for personnel and avoiding safety accidents caused by non-standard operation.

[0027] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A terminal block for parallel power extraction from an electrical line, characterized in that, include: Main body, pressure block, and clamping nut; The main body is provided with a stud structure and has a wire connection groove, which divides the stud into two parts along the radial direction of the stud structure. The pressure block can cooperate with the wire connection groove and slides along the axial direction of the stud structure within the wire connection groove. When the pressure block and the wire connection groove are engaged, the pressure blocks at both ends of the wire connection groove extend beyond the wire connection groove to form a pressure-bearing part. The clamping nut can cooperate with the thread of the stud structure to apply pressure to the pressure-bearing part by tightening. The conductor connection groove and / or the pressure block are further provided with contacts for contacting and conducting with the conductor core of the live line in the conductor connection groove. The main body and / or the pressure block are further provided with lead-out points that are connected to the contacts for electrical connection with the power supply line.

2. The terminal block according to claim 1, characterized in that, The bottom of the conductor connection groove and the pressure block together form a first clamping structure around the conductor core of the live line.

3. The terminal block according to claim 2, characterized in that, At both ends of the conductor connection groove, the pressure-bearing part and the main body together form a second clamping structure that matches the shape of the insulation sheath of the live line.

4. The terminal block according to claim 3, characterized in that, The stud structure is a conductor, and the main body also includes an insulating shell surrounding the bottom of the wire connection groove. The portion of the insulating shell opposite to the pressure-bearing part forms the second clamping structure together with the pressure-bearing part.

5. The terminal block according to claim 4, characterized in that, The main body is provided with a wire hole and a first screw hole. The first screw hole communicates with the wire hole, and the inner wall of the wire hole is in a conductive state with the inner wall of the wire connection groove. When the power supply line is inserted into the wire hole and a screw is screwed into the first screw hole, the power supply line is pressed into the wire hole.

6. The terminal block according to claim 5, characterized in that, The wire hole has a stepped hole structure. The diameter of the first stepped hole section from the outside to the inside matches the outer diameter of the insulation of the power supply line, and the diameter of the second stepped hole section matches the diameter of the wire core of the power supply line.

7. The terminal block according to claim 5, characterized in that, The main body is also provided with a second screw hole, which exposes the stud structure. When a screw is screwed into the second screw hole, the stud structure is fixedly connected to the insulating shell as a whole.

8. The terminal block according to claim 1, characterized in that, Viewed radially along the stud structure, the middle portion of the pressure block located between the pressure-bearing portions protrudes from the pressure-bearing portion toward the clamping nut, so that when the clamping nut clamps the pressure-bearing portion, the protruding portion is embedded in the threaded hole of the clamping nut.

9. The terminal block according to claim 8, characterized in that, The shape and diameter of the protruding part match the inner thread diameter of the clamping nut.

10. The terminal block according to claim 1, characterized in that, The clamping nut is a blind hole nut.

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