Miniature T-connection terminal

Abstract

The utility model discloses a small-sized T-connection terminal, which comprises a first wiring channel and a second wiring channel which are arranged in a T shape, and the first wiring channel is electrically connected with the second wiring channel. The first wiring channel comprises an L-shaped supporting plate and a pressing plate detachably installed on the L-shaped supporting plate, a connecting groove is formed in the L-shaped supporting plate, and one end of the pressing plate is located in the connecting groove; a sealing piece is arranged between the L-shaped supporting plate and the pressing plate; a plurality of pressing assemblies are arranged on the second wiring channel, each pressing assembly comprises a pressing bolt connected to the second wiring channel through threads and a pressing piece rotatably installed at one end of the pressing bolt, the pressing piece can be adjusted by rotating the pressing bolt, and the cable is pressed and fixed. The terminal has the advantages of good sealing performance, compact structure, small occupied installation space, no influence on arrangement of other cables, simple operation and strong practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of T-connection terminals, in particular to a small T-connection terminal. Background Art

[0002] In the construction of power production, T-terminals are important carriers for connecting power lines to load terminals, and are also an indispensable key link in power construction. The connection process and quality will have a great impact on the safety of the subsequent operation. At present, the T-connection of wires mainly adopts the operation methods such as wire lap winding and piercing wire clamps to pierce the insulated wires. The lap winding operation method has the risk that the operator does not tighten the binding wire winding or the lap length is insufficient, and the connection part of the wire is discharged due to poor contact during operation. The piercing wire clamp operation method uses the piercing wire clamp operation method. The operator can only rely on the feeling to control the contact degree between the piercing wire clamp and the wire core after piercing the wire insulation. There are hidden dangers such as excessive force to pierce the wire core or insufficient force to cause poor contact with the wire. The invention patent with the authorization announcement number CN 101895021 B discloses a T-type terminal including a cover, a base and a wire pressing mechanism, the base is provided with a branch line outlet, the wire pressing mechanism includes an inlay frame, a clamping screw, a nut, a branch line clamp and a main line clamp, the inlay frame is fixed in the base, the inlay frame is U-shaped, the branch line clamp, the main line clamp and the nut are sequentially arranged in the inlay frame from the bottom of the U-shaped to the opening of the U-shaped, the branch line clamp, the main line clamp and the nut slide radially in the inlay frame, the sliding position of the nut is limited by a limiting structure, the nut is provided with a radial threaded through hole, the clamping screw passes through the threaded through hole to squeeze the main line clamp, and the main line clamp squeezes the branch line clamp, which improves the line connection performance and safety, and has good sealing, but the overall structure is complex and the connection steps are cumbersome. In addition, the existing T-type terminal has a large height dimension, and occupies a large space when installed in the bridge, which affects the subsequent threading and wiring operations in the bridge. Utility Model Content

[0003] The utility model aims to provide a small T-connecting terminal, which has good sealing performance, compact structure, occupies a small installation space, does not affect the arrangement of other cables, is simple to operate and has strong practicality.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A small T-connecting terminal comprises a first wiring channel and a second wiring channel arranged in a T shape, wherein the first wiring channel and the second wiring channel are electrically connected; the first wiring channel comprises an L-shaped support plate and a pressure plate detachably mounted on the L-shaped support plate, wherein a connecting groove is arranged on the L-shaped support plate, and one end of the pressure plate is located in the connecting groove; a sealing member is arranged between the L-shaped support plate and the pressure plate; a plurality of clamping assemblies are arranged on the second wiring channel, wherein the clamping assemblies comprise a clamping bolt connected to the second wiring channel by threads and a clamping piece rotatably mounted on one end of the clamping bolt, wherein the clamping piece can be adjusted by rotating the clamping bolt to achieve clamping and fixing of the cable.

[0006] Preferably, the sealing member includes a V-shaped rubber member arranged in the connecting groove, a rubber pad arranged on one side of the bottom of the pressure plate, an upper arc-shaped rubber pressure block arranged on both sides of the pressure plate, and a lower arc-shaped rubber pressure block arranged on both ends of the L-shaped support plate. The V-shaped rubber member and the rubber pad seal the front and rear ends of the pressure plate and the L-shaped support plate, and the upper arc-shaped rubber pressure block and the lower arc-shaped rubber pressure block seal the left and right ends of the pressure plate and the L-shaped support plate.

[0007] Preferably, an arc-shaped connecting portion is provided on the end of the clamping bolt, and a connecting protrusion is provided on the top of the clamping piece, and the arc-shaped connecting portion can be rotatably installed in the connecting protrusion.

[0008] Preferably, an end rubber block adapted to the inner cavity of the second wiring channel is provided in the second wiring channel, and a through hole for passing the cable is provided on the end rubber block.

[0009] Preferably, the pressing member includes an inverted U-shaped support plate, an insulating member fixedly arranged on the inner side of the inverted U-shaped support plate, and a metal pressing ring fixedly arranged on the inner side of the insulating member.

[0010] Preferably, a connecting piece is provided on one side of the L-shaped supporting plate, and a connecting hole is provided on the connecting piece.

[0011] In the utility model, the T-terminal is compact in structure and small in height, which is convenient for installation in the bridge and occupies little space. The sealing member can seal the exposed part of the cable, has good insulation and waterproof capabilities, and ensures the safety of the operation. The clamping assembly fixes the cable in the second wiring channel on the one hand, and the clamping bolt is insulated from the cable on the other hand, so live operation is possible, which improves the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2It is a schematic diagram of another viewing angle of the overall structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the structural section of the utility model;

[0015] Figure 4 It is an enlarged schematic diagram of the local structure of the utility model;

[0016] Figure 5 It is a left side schematic diagram of the local structure of the utility model;

[0017] Figure 6 This is a schematic diagram of the structure of another embodiment of the utility model;

[0018] In the figure: 1. first wiring channel; 2. second wiring channel; 3. sealing member; 4. clamping assembly; 5. end rubber block; 6. connecting member; 10. L-shaped support plate; 11. pressure plate; 12. connecting groove; 30. V-shaped rubber member; 31. rubber pad; 32. upper arc-shaped rubber pressure block; 33. lower arc-shaped rubber pressure block; 40. clamping bolt; 41. clamping member; 42. connecting protrusion; 410. inverted U-shaped support plate; 411. insulating member; 412. metal pressure ring. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A small T-connecting terminal is shown, comprising a first wiring channel 1 and a second wiring channel 2 arranged in a T shape, wherein the first wiring channel 1 and the second wiring channel 2 are electrically connected. Specifically, copper pressing plates are arranged in the first wiring channel 1 and the second wiring channel 2, and the two copper pressing plates are fixedly connected, thereby realizing the electrical connection between the first wiring channel 1 and the second wiring channel 2.

[0021] The first wiring channel 1 includes an L-shaped support plate 10 and a pressure plate 11 detachably mounted on the L-shaped support plate 10. A connection groove 12 is provided on the L-shaped support plate 10. One end of the pressure plate 11 has an arc portion, which is located in the connection groove 12. A plurality of threaded holes are provided on one end of the L-shaped support plate 10. A connection hole matching the threaded hole is provided on the pressure plate 11. Bolts are passed through the connection holes and connected to the threaded holes to achieve a detachable connection between the L-shaped support plate 10 and the pressure plate 11. By adjusting the bolts, the L-shaped support plate 10 and the pressure plate 11 can be pressed tightly against the cable between them. In a preferred embodiment, an arc-shaped bearing groove is provided on the L-shaped support plate 10, and the copper pressure sheet is located in the arc-shaped bearing groove and contacts the exposed metal part of the cable.

[0022] A sealing member 3 is arranged between the L-shaped support plate 10 and the pressing plate 11. The sealing member 3 includes a V-shaped rubber member 30 arranged in the connecting groove 12, a rubber pad 31 arranged on one side of the bottom of the pressing plate 11, an upper arc-shaped rubber pressing block 32 arranged on the left and right sides of the pressing plate 11, and a lower arc-shaped rubber pressing block 33 arranged on both ends of the L-shaped support plate 10. The V-shaped rubber member 30 and the rubber pad 31 seal the front and rear ends of the pressing plate 11 and the L-shaped support plate 10, and the upper arc-shaped rubber pressing block 32 and the lower arc-shaped rubber pressing block 33 seal the left and right ends of the pressing plate 11 and the L-shaped support plate 10, forming a complete sealing area for the exposed metal part of the cable, which has good insulation ability and waterproof performance.

[0023] A plurality of clamping assemblies 4 are provided on the second wiring channel 2. The clamping assemblies 4 include a clamping bolt 40 threadedly connected to the second wiring channel 2 and a clamping piece 41 rotatably mounted on one end of the clamping bolt 40. Rotating the clamping bolt 40 can adjust the vertical height position of the clamping piece 41 in the second wiring channel 2 to achieve clamping and fixing of the cable. The clamping piece 41 can fix the exposed metal part of the cable in the second wiring channel 2, thereby achieving electrical connection with the cable fixed in the first wiring channel 1.

[0024] The clamping member 41 includes an inverted U-shaped support plate 410, an insulating member 411 fixedly arranged on the inner side of the inverted U-shaped support plate 410, and a metal pressure ring 412 fixedly arranged on the inner side of the insulating member 411. The outer dimensions of the inverted U-shaped support plate 410 are adapted to the inner cavity of the second wiring channel 2. When the clamping bolt 40 is rotated, the clamping member 41 can only move vertically. The inverted U-shaped support plate 410 is connected to the second wiring channel 2 through plastic insulation sliding, so that the clamping bolt 40 is insulated and connected to the cable in the second wiring channel 2, and can be operated with power on, thereby improving the safety of the operation. Specifically, an arc-shaped connecting portion is provided on the end of the clamping bolt 40, and a connecting protrusion 42 is provided on the top of the clamping member 41. The arc-shaped connecting portion can be rotatably installed in the connecting protrusion 42, a groove is provided in the connecting protrusion 42, and a rubber ring is installed in the groove. The rubber ring clamps the arc-shaped connecting portion in the connecting protrusion 42, which is convenient for the connection and disassembly of the two.

[0025] An end rubber block 5 adapted to the inner cavity of the second wiring channel 2 is provided in the second wiring channel 2, and a through hole for passing the cable is provided on the end rubber block 5. The diameter of the through hole is smaller than the outer diameter of the cable, and the cable is squeezed through the through hole to achieve a sealed connection. A connector 6 is fixedly provided on one side of the L-shaped support plate 10, and a connecting hole is provided on the connector 6. During operation, the T-connecting terminal can be fixed to the bridge frame by bolts, and the connection is stable and reliable. The L-shaped support plate 10, the pressure plate 11 and the second wiring channel 2 are all made of steel plates, and a plastic insulation layer is provided on the outer side of the steel plate to ensure structural strength, while having good insulation and good safety.

[0026] In another embodiment, Figure 6 As shown, the first wiring channel 1 and the second wiring channel 2 are arranged in parallel, that is, the device can also realize the situation where the main line and the branch line are arranged in parallel, and the operation is to select terminals with different arrangements of the first wiring channel 1 and the second wiring channel 2 according to the direction of cable wiring.

[0027] The above embodiments are only some descriptions of the concept and implementation of the utility model, and are not intended to limit the concept and implementation of the utility model. Under the concept of the utility model, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A small T-terminal, characterized in that: It includes a first wiring channel and a second wiring channel arranged in a T shape, and the first wiring channel and the second wiring channel are electrically connected; the first wiring channel includes an L-shaped support plate and a pressure plate detachably mounted on the L-shaped support plate, and a connecting groove is arranged on the L-shaped support plate, and one end of the pressure plate is located in the connecting groove; a sealing member is arranged between the L-shaped support plate and the pressure plate; a plurality of clamping assemblies are arranged on the second wiring channel, and the clamping assembly includes a clamping bolt connected to the second wiring channel by a thread and a clamping piece on one end of the clamping bolt rotatably mounted, and the clamping bolt can be rotated to adjust the clamping piece to achieve clamping and fixing of the cable.

2. The miniature T-terminal according to claim 1, characterized in that: The sealing member includes a V-shaped rubber member arranged in the connecting groove, a rubber pad arranged on one side of the bottom of the pressure plate, an upper arc-shaped rubber pressure block arranged on both sides of the pressure plate, and a lower arc-shaped rubber pressure block arranged on both ends of the L-shaped support plate. The V-shaped rubber member and the rubber pad seal the front and rear ends of the pressure plate and the L-shaped support plate, and the upper arc-shaped rubber pressure block and the lower arc-shaped rubber pressure block seal the left and right ends of the pressure plate and the L-shaped support plate.

3. The small T-terminal according to claim 1 or 2, characterized in that: An arc-shaped connecting portion is arranged on the end of the clamping bolt, and a connecting protrusion is arranged on the top of the clamping piece. The arc-shaped connecting portion can be rotatably installed in the connecting protrusion.

4. The small T-terminal according to claim 1, characterized in that: An end rubber block adapted to the inner cavity of the second wiring channel is arranged in the second wiring channel, and a through hole for passing the cable is arranged on the end rubber block.

5. The small T-terminal according to claim 3, characterized in that: The pressing member comprises an inverted U-shaped support plate, an insulating member fixedly arranged on the inner side of the inverted U-shaped support plate, and a metal pressing ring fixedly arranged on the inner side of the insulating member.

6. The small T-terminal according to claim 1, characterized in that: A connecting piece is arranged on one side of the L-shaped supporting plate, and a connecting hole is arranged on the connecting piece.

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