A live-line working jumper clamp

Abstract

This utility model relates to the field of power device technology, specifically a live-line working jumper clamp, including a housing, which comprises an upper housing and a lower housing. A conductive connection component and a sliding mating component are disposed within the inner cavity of the housing. Multiple fixing keys are provided on the outer side of the conductive connection component, and a blind hole is provided in the middle of the fixing keys on the left and right sides. A second limiting spring and a slidable limiting block are disposed in the blind hole. A through hole is provided on the left side of the bottom surface of the housing, and a sliding shaft is disposed in the through hole. One end of the sliding shaft is connected to the sliding mating component, and the bottom surface of the sliding mating component is connected to the first limiting spring. An internally threaded through hole is provided on the right side of the conductive connection component, and a locking fastener is disposed in the internally threaded through hole. In this live-line working jumper clamp, the outer housing and the internal conductive connection component are made of different materials, which improves the safety of personnel performing live-line work. The angle guidance and automatic clamping device shorten the installation time, simplify the installation steps, and improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power device technology, and in particular to a live-line jumper clamp. Background Technology

[0002] Live-line working refers to the method of maintenance and testing on high-voltage electrical equipment without interrupting power supply. Live-line working can be divided into equipotential working, ground potential working, and intermediate potential working. With the increasing demand for computers, people's requirements for power supply from power companies are also rising. To improve power supply reliability, power supply units in various regions are widely carrying out bypass live-line working.

[0003] Currently, most live-line jumper clamps are limited in diameter and tightened using bolts. Therefore, when dealing with live wires of different diameters, different clamps need to be replaced to match the size of the wire groove with the live wire. This makes it difficult to adjust, hinders the rapid progress of jumper operations, and also results in high installation difficulty and low work efficiency. Utility Model Content

[0004] To address the problems of existing live-line working jumper clamps, such as difficulty in adjusting the diameter, high installation difficulty, and low work efficiency, this utility model provides a live-line working jumper clamp. The technical solution adopted by this utility model to solve the above problems is: a live-line working jumper clamp, wherein the housing adopts a split structure, consisting of a cooperating upper housing and a lower housing. The inner cavity of the housing is provided with a conductive connection component and a sliding fitting component. Multiple fixing keys are distributed on the outer surface of the conductive connection component, and axial blind holes are respectively provided between the fixing keys on opposite sides. The blind hole is equipped with a first limiting spring and a slidable limiting block. The first limiting spring applies an elastic force to the limiting block, allowing the limiting block to slide along the axial direction of the blind hole and partially extend out of the blind hole. The bottom left of the housing has a through hole, through which a sliding shaft passes. One end of the sliding shaft is fixedly connected to the sliding mating part. The bottom of the sliding mating part is connected to a second limiting spring, and the other end of the second limiting spring abuts against the bottom of the inner cavity of the housing. The right side of the conductive connection assembly has a threaded connection hole, which is connected to a locking fastener.

[0005] The aforementioned live-line working jumper clamp is made of insulating material for the housing, sliding shaft, and locking fasteners, and conductive material for the conductive connection assembly. The insulating material can isolate the live conductor, improving the safety of equipment use, while the conductive material of the conductive connection assembly can clamp the current of the wire and conduct it to the other end.

[0006] The aforementioned live-line working jumper clamp has an arc-shaped through hole on the bottom surface of the left half of the conductive connection component and a circular through hole in the middle of the right half. The arc-shaped through hole on the left side cooperates with the sliding limiter to clamp the live wire, and the through hole on the right side connects to a non-energized wire. The two wires transmit current through the conductive connection component.

[0007] The aforementioned live-line working jumper clamp has multiple blind key slots in the inner cavity of its housing. These blind key slots limit and install the conductive connection components, preventing them from slipping off and reducing the possibility of safety accidents.

[0008] The aforementioned live-line working jumper clamp has a stepped circular hole on each of the left and right sides of the inner cavity of the housing. A limiting block and a first limiting spring are installed in the stepped circular hole. The bottom surface of the limiting block contacts the first limiting spring. The limiting block restricts the sliding of the conductive connection component inside the housing, thereby improving the stability of the equipment. The boltless limiting design saves the installation time of the equipment and improves the production efficiency of the equipment.

[0009] The aforementioned live-line working jumper clamp has a downward-sloping surface on the left side of the housing and an upward-sloping surface on the left side of the sliding fitting. The slopes on the left side of the housing and the slopes on the left side of the sliding shaft form an angle guide structure. When working, the angle guide device can directly guide the wire to be clamped and compress it into the inner cavity, reducing the difficulty of using the equipment and improving the efficiency of live-line working.

[0010] The aforementioned live-line working jumper clamp has four threaded blind holes at the four corners of the front of the lower housing and four countersunk threaded through holes at the four corners of the front of the upper housing. The upper and lower housings can be tightly connected during installation, improving the stability of the equipment.

[0011] The aforementioned live-line working jumper clamp has a threaded hole on the right side of the conductive connection component that connects to the locking fastener. The locking fastener can fix the non-energized wire in the conductive connection component, reducing the possibility of safety accidents caused by wire slippage.

[0012] As described above, the beneficial effects of the live-line working jumper clamp provided by this utility model are as follows: This utility model adopts a segmented structure, which isolates the live-line working part and the external operation part with materials of different conductivity properties, thereby improving the safety of operation. The automatic clamping device composed of the sliding shaft and the second limiting spring improves the speed of equipment installation and can adapt to the diameter of the wire. The angle guiding device composed of the housing and the sliding mating parts and the automatic clamping device of the sliding shaft and the second limiting spring improve the efficiency of work. The limiting block restricts the sliding of the conductive connection component inside the housing through the first limiting spring, thereby improving the stability of the equipment. The boltless limiting design saves the installation time of the equipment and improves the production efficiency of the equipment. Attached Figure Description

[0013] 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the present invention in its working state; Figure 4 This is a schematic view showing the connection between the conductive connection assembly and the sliding mating part of this utility model; Figure 5 This is a schematic diagram of the lower shell of this utility model.

[0015] Summary of figure labels and their descriptions: 1. Housing, 11. Upper housing, 12. Lower housing, 121. Stepped circular hole, 122. Threaded blind hole, 123. Blind keyway, 2. Conductive connection assembly, 21. Blind hole, 22. Fixing key, 3. First limiting spring, 4. Limiting block, 5. Sliding mating part, 51. Guide surface, 6. Second limiting spring, 7. Sliding shaft, 8. Locking fastening device. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0017] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0019] A live-line jumper clamp has a split-type housing 1, consisting of an upper housing 11 and a lower housing 12 that cooperate with each other. The inner cavity of the housing 1 contains a conductive connection assembly 2 and a sliding fitting 5. Multiple fixing keys 22 are distributed on the outer surface of the conductive connection assembly 2. Axial blind holes 21 are respectively provided between the fixing keys 22 on opposite sides. A first limiting spring 3 and a slidable limiting block 4 are installed inside the blind hole 21. The first limiting spring 3 applies an elastic force to the limiting block 4, allowing the limiting block 4 to slide axially along the blind hole and partially extend out of it. A through hole is provided on the bottom left of the housing 1, through which a sliding shaft 7 passes. One end of the sliding shaft 7 is fixedly connected to the sliding fitting 5. A second limiting spring 6 is connected to the bottom of the sliding fitting 5, and the other end of the second limiting spring 6 abuts against the bottom of the inner cavity of the housing 1. A threaded connection hole is provided on the right side of the conductive connection assembly 2, through which a locking fastener 8 is connected.

[0020] The housing 1, sliding shaft 7, and locking fastener 8 are made of insulating materials, while the conductive connection assembly 2 is made of conductive materials. The isolation between the insulating and conductive working parts improves the safety of the equipment operation.

[0021] The bottom surface of the left half of the conductive connection component 2 is provided with an arc-shaped through hole, and the middle part of the right half is provided with a circular through hole. The arc-shaped through hole on the left side clamps the live wire with the sliding fitting 5, and the through hole in the middle of the right half connects to a non-live wire. The two wires transmit current through the conductive connection component.

[0022] The inner cavity of the housing 1 is provided with multiple blind key slots 123. The blind key slots 123 limit and install the conductive connection component 2, preventing the conductive connection component 2 from slipping off and reducing the possibility of safety accidents.

[0023] A stepped circular hole 121 is provided on the left and right sides of the inner cavity of the housing 1. A limiting block 4 and a first limiting spring 3 are provided in the stepped circular hole 121. The bottom surface of the limiting block 4 contacts the first limiting spring 3. The limiting block 4 restricts the sliding of the conductive connection component 2 inside the housing 1, which improves the stability of the equipment. The boltless limiting design saves the installation time of the equipment and improves the production efficiency of the equipment.

[0024] The left side of the housing 1 has a downward-sloping surface, and the left side of the sliding mating part 5 has an upward-sloping surface. The slopes on the left side of the housing 1 and the left side of the sliding mating part 5 form an angle guide structure. When working, the angle guide device can directly guide the wire to be clamped and compress it into the inner cavity, reducing the difficulty of using the equipment and improving the efficiency of live-line work.

[0025] Four threaded blind holes 122 are provided at the four corners of the front of the lower housing 12, and four countersunk threaded through holes are provided at the four corners of the front of the upper housing 11. The upper and lower housings can be tightly connected during installation, which improves the stability of the equipment.

[0026] The conductive connection component 2 has a threaded hole on its right side that connects to the locking fastener 8. The locking fastener 8 can fix the non-energized wire in the conductive connection component 2, reducing the possibility of safety accidents caused by the wire slipping.

[0027] In this embodiment, the first limiting spring 3 is first installed in the blind hole located between the left and right side keys of the conductive connection assembly 2. Then, the limiting block 4 is coaxially installed in the blind hole between the left and right side keys of the conductive connection assembly 2, with the bottom surface of the limiting block 4 freely contacting the top surface of the first limiting spring 3. While pressing the limiting block 4 and compressing the spring 3, the conductive connection assembly 2 is installed in the lower housing 12. The sliding fit 5 is installed in the lower half of the lower housing 12. The second limiting spring 6 is set on the lower end face of the sliding fit 5. The upper housing 11 is covered and the upper housing 11 and the lower housing 12 are threaded together. The sliding shaft 7 is connected to the thread on the bottom surface of the sliding fit. Finally, the fastening fastener 8 is connected at the through hole on the right side of the housing 1 to complete the installation. During operation, the external non-energized wire is first inserted into the right hole of the device and locked by the fastening fastener 8. Then, the live wire is directly squeezed into the left-side angle guide device and enters the conductive connection assembly. The second limiting spring 6 rebounds and pushes the sliding fit 5 to clamp, completing the clamping and diversion of the live wire.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A live-line jumper clamp, comprising a housing (1), characterized in that: The housing (1) adopts a split structure, consisting of an upper housing (11) and a lower housing (12) that cooperate with each other. The inner cavity of the housing (1) is provided with a conductive connection assembly (2) and a sliding fitting part (5). The outer side of the conductive connection assembly (2) is provided with a plurality of fixing keys (22). Axial blind holes (21) are respectively provided between the fixing keys (22) on opposite sides. A first limiting spring (3) and a sliding limiting block (4) are assembled in the blind hole (21). The first limiting spring (3) applies spring force to the limiting block (4). The force of the action makes the limiting block (4) slide along the axial direction of the blind hole and partially extend out of the blind hole; the bottom left of the housing (1) is provided with a through hole, and a sliding shaft (7) is provided in the through hole. One end of the sliding shaft (7) is fixedly connected to the sliding fitting (5). The bottom of the sliding fitting (5) is connected to a second limiting spring (6), and the other end of the second limiting spring (6) abuts against the bottom of the inner cavity of the housing (1); the right side of the conductive connection assembly (2) is provided with a threaded connection hole, and the threaded connection hole is connected to the locking fastener (8).

2. The live-line working jumper clamp according to claim 1, characterized in that: The housing (1), sliding shaft (7) and locking fastener (8) are made of insulating materials, and the conductive connection assembly (2) is made of conductive materials.

3. The live-line working jumper clamp according to claim 1, characterized in that: The bottom surface of the left half of the conductive connection component (2) is provided with an arc-shaped through hole, and the middle part of the right half is provided with a circular through hole.

4. A live-line working jumper clamp according to claim 3, characterized in that: The inner cavity of the housing (1) is provided with multiple blind keyways (123).

5. A live-line working jumper clamp according to claim 4, characterized in that: The inner cavity of the housing (1) is provided with a stepped circular hole (121) on the left and right sides, and a limiting block (4) and a first limiting spring (3) are provided in the stepped circular hole (121).

6. A live-line working jumper clamp according to claim 5, characterized in that: The left side of the housing (1) is provided with a downward inclined surface, and the left side of the sliding mating part (5) is a downward inclined surface.

7. A live-line working jumper clamp according to claim 1, characterized in that: The inclined surface on the left side of the housing (1) and the inclined surface on the left side of the sliding shaft (7) form an angle guiding structure.

8. A live-line working jumper clamp according to claim 1, characterized in that: The lower housing (12) has four threaded blind holes (122) at the four corners of its front side, and the upper housing (11) has four countersunk threaded through holes at the four corners of its front side.

9. A live-line working jumper clamp according to claim 1, characterized in that: The conductive connection component (2) has a threaded hole on its right side that connects to the locking fastener (8).

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