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Power fitting for preventing cable from loosening

A technology for electric power fittings and cables, which is applied in the field of electric power fittings to prevent loosening of cables. It can solve problems such as poor firmness and easy loosening, and achieve the effect of ensuring stability and reliability and excellent anti-loosening effect

Inactive Publication Date: 2016-07-06
胡妍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional power fittings also have shortcomings. The pressure of clamping wires depends on the pressure of ordinary bolt components, which is poor in firmness and easy to loosen.

Method used

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  • Power fitting for preventing cable from loosening
  • Power fitting for preventing cable from loosening
  • Power fitting for preventing cable from loosening

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment is a kind of power fittings to prevent the cable from loosening, see Figure 1 to Figure 8 As shown, it includes a pressure ring 1 , a core tube 2 , a set of pressure jaw assemblies 3 and an axial retaining ring 4 .

[0024] The outer peripheral wall of the core tube 2 is provided with an outwardly convex stopper 21 and a concave annular groove 22, and three radial guide holes 23 are evenly distributed along the circumferential direction on the core tube wall; in this embodiment, each radial direction The guide hole runs through the wall of the core tube in the radial direction of the core tube. The axial retaining ring is arranged in the annular groove of the core tube.

[0025] Each radial guide hole 23 includes a guide slide hole 231 and an anti-slip hole 232 arranged in sequence along the axial direction of the core tube; The guide sliding holes are connected; the radial cross-sectional shape of each radial guide hole is T-shaped; each radial guide...

Embodiment 2

[0035] This embodiment is basically the same as Embodiment 1, the difference is: see Figure 9 to Figure 14 As shown, this embodiment also includes a mandrel 7 located in the lumen of the core tube; three arc-shaped clamping grooves 71 are provided on the outer peripheral wall of the mandrel, and each arc-shaped clamping groove extends axially along the core tube, and each arc-shaped clamping groove The slots are arranged opposite to the arc-shaped slots on the inner wall of the corresponding one of the pressing jaws; each arc-shaped clamping slot and a corresponding arc-shaped slot are clamped to form a clamping hole 61; so this embodiment can form three clamping holes, which can be used for simultaneous Clamp the three cables.

[0036] The outer peripheral wall of the mandrel is provided with four supporting positioning convex plates 72 protruding along the radial direction of the core tube, and the inner peripheral wall of the core tube is provided with four positioning sli...

Embodiment 3

[0038] This embodiment is basically the same as Embodiment 1, the difference is: see Figure 15As shown, this embodiment also includes a voltage transformer 8; the voltage transformer includes an annular base 81 and an intelligent control module; in this embodiment, the voltage transformer is sheathed and fixed on the outer peripheral wall of the core tube. The intelligent control module can include a wireless transceiver unit, through which the intelligent control module transmits the secondary voltage or current signal sensed by the annular substrate to the remote host to achieve precise remote unmanned monitoring; this structure can make full use of space, Conducive to overall miniaturization and integration. This embodiment can be used as a high voltage transformer.

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PUM

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Abstract

The invention discloses a power fitting for preventing cable from loosening. The power fitting comprises a compression ring, a core tube and one set of press claw components, wherein three radial guide holes are formed in the tube wall of the core tube; the press claw components comprise three press claws; each press claw is provided with a press plate part, a guide slide block part and a drive plate part; the press plate parts are located in a tube cavity of the core tube; the three press plate parts in the press claw components are clamped to form a wire clamping hole; the outer end of the guide slide block part of each press claw extends out of the tube wall of the core tube; the drive plate parts are located at the outer side of the tube wall of the core tube; each press claw slides along one corresponding radial guide hole in a reciprocating manner; the compression ring is rotationally arranged on the outer circumference wall of the core tube; the compression ring and the three guide slide block parts in the press claw components are adjacently arranged; three spiral grooves are formed in one side end, adjacent to the guide slide block part of each press claw, of the compression ring; the drive plate part of each press claw is located in one corresponding spiral groove; the compression ring extrudes the drive plate part of one corresponding press claw through the corresponding spiral groove when rotating, so that the corresponding press claw is pushed to slide towards the center of the core tube. The power fitting has relatively good anti-looseness performance.

Description

technical field [0001] The technical field of electric power fittings for overhead lines of the present invention, in particular relates to a kind of electric power fittings for preventing cables from loosening. Background technique [0002] In the construction of overhead power lines, when the cables need to be branched or spliced, it is necessary to use power fittings to connect two insulated conductors together. Power fittings have the characteristics of easy installation, low cost, safety, reliability and maintenance-free. Cable branches can be made without cutting off the main cable or stripping the insulation layer of the cable. The joints are completely insulated and can be used for live work, and can be branched at any position on the cable; no terminal box or junction box is needed; and the joints are resistant to twisting, Shockproof, waterproof, anti-corrosion and aging; using insulated power fittings as cable branches, the comprehensive benefits are obvious, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R11/09H01R11/01H01R4/24H01R4/38H01F38/26H01F27/06
CPCH01R11/09H01F27/06H01F38/26H01R4/2408H01R4/38H01R11/01
Inventor 胡妍
Owner 胡妍