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Lap-jointed lead fixing appliance

A technology for connecting leads and appliances, applied in the direction of connection, conductive connection, electrical component connection, etc., can solve the problems of threatening the personal safety of urban and rural residents, increasing operating costs, and low reliability of trench wire clips.

Active Publication Date: 2019-03-08
LISHUI POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reliability of parallel trench clamps is not high, and power supply companies need to increase the number of inspections, shorten maintenance cycles, and increase operating costs
If the parallel trench clip causes a failure or an accident, it can lead to a large-scale power outage and threaten the personal safety of urban and rural residents
[0003] The current parallel trench line clamps have the following operational difficulties in the construction of overhead lines: during the tightening process of the connecting bolts of the parallel trench line clamps, there will be relative rotation between the lower clamping block and the upper clamping block, causing the upper clamping block to The upper clamping groove and the lower clamping groove on the lower clamping block are distributed alternately (the axes of the upper clamping groove and the lower clamping groove are not parallel), resulting in the occurrence of The reduction of the overlapping area of ​​the cables will cause the contact resistance to increase, and the resistance will increase easily to generate heat, which poses a safety hazard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: as figure 1 , figure 2 As shown, an overlapping lead wire fixing device includes an upper clamping block 1, two lower clamping blocks 2 located below the upper clamping block, two balance weights 3 corresponding to the lower clamping blocks one by one, connecting the upper The connecting bolt 4 of the clamping block and the lower clamping block and the pre-tightening guide and anti-rotation device 5.

[0032] The upper clamping block is provided with two upper clamping slots 1.1 arranged in the same direction. The cross section of the upper clamping groove is semicircular.

[0033] The two lower clamping blocks are distributed along the length direction of the upper clamping groove. The lower clamping block is provided with two lower clamping grooves 2.1 corresponding to the upper clamping grooves one by one. The cross section of the lower clamping groove is semicircular.

[0034] The balance weight is located below the corresponding lower clamping w...

Embodiment 2

[0045] Embodiment 2, the remaining structure of this embodiment is with reference to embodiment 1, and its difference is:

[0046] Such as image 3 , Figure 4As shown, the locking guide riser includes a main guide riser 5.11, an avoidance gap 5.12 arranged at the junction of the top edge of the main guide riser and one side edge, a rotating clamping plate 5.13 located in the avoidance gap, and an avoidance gap arranged in the avoidance gap. The horizontal shaft hole on the side of the shaft, the shaft rod 5.6 that is arranged in the shaft hole and the shaft rod positioning mechanism 5.7 that is arranged on the main guide vertical plate. In this embodiment, the connecting screw is connected to the upper side of the main guide riser.

[0047] The shaft is parallel to the main guide vertical plate, the shaft is parallel to the rotating clamping plate, and the shaft is connected to the rotating clamping plate.

[0048] In this embodiment, one of the two pre-locking grooves is ...

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PUM

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Abstract

The invention discloses a lap-jointed lead fixing appliance and aims at providing the lap-jointed lead fixing appliance which not only facilitates the actual construction operation but also can effectively prevent the problems of the reduced cable lap-jointed area, the increased contact resistance and the potential safety hazard caused by a relative rotation between lower wire-clamping blocks andan upper wire-clamping block after a cable is tightly clamped by the upper wire-clamping block and the lower wire-clamping blocks. The lap-jointed lead fixing appliance comprises the upper wire-clamping block, two lower wire-clamping blocks, connection bolts for connecting the upper wire-clamping block and the lower wire-clamping blocks, and a pre-locking type guide rolling stopper, wherein the upper wire-clamping block is provided with two upper wire-clamping slots which are disposed in the same direction; the pre-locking type guide rolling stopper comprises a locking guide vertical plate located between the two lower wire-clamping blocks, a connection screw rod located above the locking guide vertical plate, and a screw rod via hole disposed in the upper wire-clamping block and matched with the connection screw rod; and a top edge of the locking guide vertical plate is provided with two pre-locking slots in one-to-one correspondence with the upper wire-clamping slots.

Description

technical field [0001] The invention relates to a cable clamp, in particular to an overlapping lead wire fixing device. Background technique [0002] The reliability of line equipment is an important factor affecting the reliability of power supply. Among them, there are a large number of parallel trench clamps running in urban and rural power grids, and their performance will directly affect reliable power supply. The reliability of parallel trench clamps is not high, and power supply companies need to increase the number of inspections, shorten maintenance cycles, and increase operating costs. If the parallel trench clamp causes a fault or an accident, it can lead to a large-scale power outage and threaten the personal safety of urban and rural residents. [0003] The current parallel trench line clamps have the following operational difficulties in the construction of overhead lines: during the tightening process of the connecting bolts of the parallel trench line clamps...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R11/09H01R11/01H01R4/44
CPCH01R4/44H01R11/01H01R11/09
Inventor 吴慧敏吴林地吴顺颜志山吴小平吴铭吴文军吴伟章吴涛刘晨阳吴夏华陈寅
Owner LISHUI POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER
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