Device for replacing wiring terminals at two ends of power distribution drop

Abstract

The invention provides a power distribution drop two-end wiring terminal replacement device, and relates to the technical field of power distribution lines, the device comprises a wire main body and a clamp main body, the wire main body penetrates through the clamp main body, the side surface of the clamp main body is provided with a connecting screw hole, a clamp screw penetrates through the connecting screw hole, and the end part of the clamp screw is connected with a positioning arc plate. Positioning cones are distributed on the circumference of the inner wall of the clamp body, the ends of the positioning cones abut against the surface of the wire body, after the wire body is vertically inserted into the clamp body, the clamp screw arranged on the side face in a penetrating mode rotates to abut against the surface of the wire body, and the wire body is prevented from being broken by adjusting the rotating distance of the clamp screw and controlling the pressing force. The positioning columns and the positioning arc plates are additionally arranged in the clamp body to abut against the surface of the wire body, so that when the clamp body is used for positioning the wire body, multi-point pressing positioning is utilized, shaking is prevented, stability is improved, operation is simple, and quick replacement, installation and use of a wiring terminal are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution lines, in particular to a device for replacing terminal blocks at both ends of a power distribution drop. Background Art

[0002] At present, there are several main ways to connect the primary and secondary drop switches of distribution transformers to the conductors during distribution network operation. First, copper-aluminum transition terminals are used to connect to high and low voltage lines. Second, copper-aluminum transition equipment wire clamps are used to directly connect to the conductors. Third, ABB-type copper-aluminum transition materials are directly connected to the conductors. When copper-aluminum terminals are damaged by external forces and the node temperature is too high, the root of the terminal and the transition part of the terminal are prone to breakage, causing more serious power grid accidents or even large-scale power outages. When restoring power supply, the terminal needs to be crimped again. Crimping the terminal requires professional crimping tools, and the on-site operation is cumbersome. When the live repair work is performed, the crimping of the terminal is completed at high altitude, which increases the difficulty of construction.

[0003] In the prior art, when the distribution terminal is used for drop connection, the copper-aluminum transition equipment wire clamp needs multiple bolts to be installed, which is time-consuming and labor-intensive. The patch of the AAB copper-aluminum transition material that fixes the wire is easily deformed during connection. Therefore, when the existing terminal line is compressed and connected, there are problems such as unreliable crimping of the copper-aluminum terminal, uneven force causing damage to the terminal, and difficulty in quick installation. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that the wiring terminals are not firmly pressed and are not easy to install quickly, and to propose a device for replacing the wiring terminals at both ends of the distribution drop.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a device for replacing the terminal blocks at both ends of a power distribution drop, comprising a wire body and a clamp body, the wire body is penetrated inside the clamp body, a connecting screw hole is opened on the side of the clamp body, a clamp screw is penetrated inside the connecting screw hole, a positioning arc plate is connected to the end of the clamp screw, and positioning cones are distributed circumferentially on the inner wall of the clamp body, and the end of the positioning cone is against the surface of the wire body.

[0006] Preferably, a mounting hole is provided on the outer surface of the positioning arc plate, and the clamp screw is threadedly connected to the positioning arc plate through the mounting hole.

[0007] Preferably, a clamp nut is provided on the surface of the clamp screw, and the inner wall of the clamp nut is threadedly connected to the surface of the clamp screw.

[0008] Preferably, the vertical center line of the top surface of the clamp screw coincides with the vertical center line of the positioning arc plate, and the horizontal center line of the side surface of the clamp screw coincides with the horizontal center line of the side surface of the clamp body.

[0009] Preferably, the top and bottom surfaces of the positioning arc plate are coplanar with the top and bottom surfaces of the clamp body, and the center of the arc where the positioning arc plate is located coincides with the center of the circle where the surface contour of the clamp body is located.

[0010] Preferably, the size of the end of the positioning cone abutting against the clamp body is 4 times the size of the end abutting against the surface of the wire body, and the outer surface of the positioning cone is coated with a silicone coating.

[0011] Preferably, the outer edges of the clamp body are all rounded, the surface of the positioning arc plate is coated with a silicone coating, and the outer edges of the positioning arc plate are all rounded. Beneficial Effects

[0012] In the present invention, after the wire body is vertically inserted into the inside of the clamp body, the clamp screw provided through the side is rotated until it abuts against the surface of the wire body to achieve positioning of the wire body, and the clamping force is controlled by adjusting the rotation distance of the clamp screw to prevent the wire body from breaking. At the same time, a positioning column and a positioning arc plate are added inside the clamp body to abut against the surface of the wire body, so that the clamp body can use multi-point compression and positioning when positioning the wire body, thereby preventing shaking, increasing stability, and being simple to operate, and facilitating rapid replacement, installation and use of the wiring terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 is an axonometric view of the present invention; Figure 3 A top view of the present invention; Figure 4 It is a split diagram of the present invention.

[0014] Legend: 1. Wire body; 2. Clamp body; 3. Clamp screw; 4. Clamp nut; 5. Positioning arc plate; 6. Positioning cone; 7. Connecting screw hole; 8. Mounting hole. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0016] The specific embodiments of the present invention are described below with reference to the accompanying drawings. Example 1

[0017] Reference Figure 1-4, a device for replacing the terminal blocks at both ends of the power distribution drop, comprising a wire body 1 and a clamp body 2, wherein the wire body 1 is penetrated inside the clamp body 2, a connecting screw hole 7 is opened on the side of the clamp body 2, and a clamp screw 3 is penetrated inside the connecting screw hole 7. When the whole device is used to position and replace the wire body 1, the copper wire on the surface of the end of the wire body 1 is stripped and exposed and then inserted into the clamp body 2, and the clamp screw 3 penetrated on the side is rotated until it is against the surface of the wire body 1 to achieve the positioning of the wire body 1. Since a clamp nut 4 is provided on the surface of the clamp screw 3, and the inner wall of the clamp nut 4 is threadedly connected with the surface of the clamp screw 3, the clamp nut 4 is sleeved on the surface of the clamp screw 3, and the clamp nut 4 is rotated until it is against the outer surface of the clamp body 2, so as to achieve the positioning of the clamp screw 3 after the position is adjusted, keep the clamp screw 3 stable, prevent sliding, and control the pressing force by adjusting the rotation distance of the clamp screw 3 to prevent the wire body 1 from breaking. In order to increase the fit and compression effect when the surface of the wire body 1 is compressed and prevent the wire body 1 from sliding, a positioning arc plate 5 is connected to the end of the clamp screw 3, and a positioning cone 6 is distributed circumferentially on the inner wall of the clamp body 2, and the end of the positioning cone 6 is against the surface of the wire body 1. A mounting hole 8 is opened on the outer surface of the positioning arc plate 5, and the clamp screw 3 is threadedly connected to the positioning arc plate 5 through the mounting hole 8, so that the clamp screw 3 is connected to the surface of the positioning arc plate 5, and the positioning arc plate 5 is adjusted with the rotation of the clamp screw 3. The position distance, thereby adjusting the compression position with the surface of the wire body 1, is convenient for adapting the size of the wire body 1 of different thicknesses. At the same time, an arc-shaped positioning arc plate 5 is provided to facilitate the abutment with the arc contour of the surface of the wire body 1, thereby increasing the adaptability of compression.

[0018] When the positioning cone 6 is against the surface of the wire body 1, point compression is achieved on different circumferential positions on the surface of the wire body 1. Compared with the traditional method of directly contacting the annular surface of the clamp body 2, the point compression method of the positioning cone 6 has higher adaptability, is not easy to slide, and has high stability. At the same time, a positioning column and a positioning arc plate 5 are added inside the clamp body 2 to abut against the surface of the wire body 1, so that the clamp body 2 can use multi-point compression to position the wire body 1 when positioning it, which prevents shaking, increases stability, is simple to operate, and is convenient for quick replacement and installation of the terminal block.

[0019] Other limiting structures in the entire device are as follows: the vertical center line of the top surface of the clamp screw 3 coincides with the vertical center line of the positioning arc plate 5, and the horizontal center line of the side surface of the clamp screw 3 coincides with the horizontal center line of the side surface of the clamp body 2, which facilitates the movement of the clamp screw 3 and the positioning arc plate 5; the top and bottom surfaces of the positioning arc plate 5 are coplanar with the top and bottom surfaces of the clamp body 2, and the center of the arc where the positioning arc plate 5 is located coincides with the center of the arc where the surface contour of the clamp body 2 is located, thereby increasing the adaptability of the arc surface of the positioning arc plate 5 to the arc surface of the wire body 1; the size of the end of the positioning cone 6 that abuts against the clamp body 2 is 4 times the size of the end that abuts against the surface of the wire body 1; the outer surface of the positioning cone 6 is coated with a silicone coating, the outer edges of the clamp body 2 are rounded, the surface of the positioning arc plate 5 is coated with a silicone coating, and the outer edges of the positioning arc plate 5 are rounded, thereby increasing the friction between the positioning arc plate 5 and the positioning cone 6 when they abut against the surface of the wire body 1 to prevent sliding. Example 2

[0020] Reference Figure 1-4 In order to facilitate the movement and adaptation of the positioning arc plate 5 and the clamp screw 3, when the positioning arc plate 5 is threadedly connected to the clamp screw 3 through the mounting hole 8, the positioning arc plate 5 rotates with the rotation of the clamp screw 3. When the clamp screw 3 is rotated to the target distance, the vertical position of the positioning arc plate 5 needs to be ensured to facilitate adaptive compensation with the surface of the wire body 1.

[0021] The positioning arc plate 5 and the clamping screw 3 can be movably connected through the mounting hole 8. At this time, there is no thread inside the mounting hole 8. When the clamping screw 3 rotates, the positioning arc plate 5 maintains an unchanged angle and moves in a straight line as the clamping screw 3 is screwed in or out. The angle is inconvenient. When the clamping screw 3 is rotated to the target position, the positioning arc plate 5 always maintains a vertical structure and no angle adjustment is required.

[0022] The installation method between the positioning arc plate 5 and the clamp screw 3 can be set according to actual operation requirements. Example 3

[0023] Reference Figure 1-4 The positioning cone 6 is generally set to have a structure with the same length in the circumferential direction, and the positioning cone 6 is made of hard rubber, which can achieve compression on the surface of the conductor body 1 while insulating. At the same time, the positioning cone 6 can be set to structures of different lengths according to actual use requirements. When it is pressed against the surface of the conductor body 1, it is partially bent by the compression of the positioning cone 6 to achieve point compression of conductor bodies 1 of different sizes.

[0024] In summary: After the clamp body 2 is vertically inserted into the wire body 1, the clamp screw 3 provided on the side is rotated until it is against the surface of the wire body 1 to achieve the positioning of the wire body 1, and the clamp screw 3 is adjusted by adjusting the rotation distance to control the clamping force to prevent the wire body 1 from breaking. At the same time, a positioning column and a positioning arc plate 5 are added inside the clamp body 2 to abut the surface of the wire body 1, so that the clamp body 2 can be positioned by multi-point clamping when positioning the wire body 1, thereby preventing shaking, increasing stability, and being simple to operate, and facilitating the rapid replacement and installation of the terminal block.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for replacing terminal blocks at both ends of a power distribution drop, comprising a conductor body (1) and a clamp body (2), characterized in that: The inside of the clamp body (2) is penetrated by a conductor body (1), a connecting screw hole (7) is opened on the side of the clamp body (2), a clamp screw (3) is penetrated inside the connecting screw hole (7), a positioning arc plate (5) is connected to the end of the clamp screw (3), and positioning cones (6) are distributed circumferentially on the inner wall of the clamp body (2), and the end of the positioning cone (6) abuts against the surface of the conductor body (1).

2. The device for replacing the wiring terminals at both ends of the power distribution drop according to claim 1, characterized in that: The outer surface of the positioning arc plate (5) is provided with a mounting hole (8), and the clamp screw (3) is threadedly connected to the positioning arc plate (5) through the mounting hole (8).

3. The device for replacing the wiring terminals at both ends of the power distribution drop according to claim 1, characterized in that: A clamp nut (4) is provided on the surface of the clamp screw (3), and the inner wall of the clamp nut (4) is threadedly connected to the surface of the clamp screw (3).

4. The device for replacing the wiring terminals at both ends of the power distribution drop according to claim 1, characterized in that: The vertical center line of the top surface of the clamp screw (3) coincides with the vertical center line of the positioning arc plate (5), and the horizontal center line of the side surface of the clamp screw (3) coincides with the horizontal center line of the side surface of the clamp body (2).

5. The device for replacing the wiring terminals at both ends of the power distribution drop according to claim 1, characterized in that: The top and bottom surfaces of the positioning arc plate (5) are coplanar with the top and bottom surfaces of the clamp body (2), and the center of the arc where the positioning arc plate (5) is located coincides with the center of the circle where the surface contour of the clamp body (2) is located.

6. The device for replacing the wiring terminals at both ends of the power distribution drop according to claim 1, characterized in that: The size of the end of the positioning cone (6) abutting against the clamp body (2) is four times the size of the end abutting against the surface of the wire body (1), and the outer surface of the positioning cone (6) is coated with a silicone coating.

7. The device for replacing the wiring terminals at both ends of the power distribution drop according to claim 1, characterized in that: The outer edges of the clamp body (2) are all rounded, the surface of the positioning arc plate (5) is coated with a silicone coating, and the outer edges of the positioning arc plate (5) are all rounded.

Images