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Electric power wire clamping fitting for preventing cable loosening

A thread clamping and loosening technology, applied in the direction of clamping/spring connection, etc., can solve problems such as easy loosening and poor firmness, and achieve the effect of reasonable center of gravity distribution, labor-saving operation, and good anti-loosening effect

Inactive Publication Date: 2016-10-05
胡小青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional hardware also has shortcomings. The pressure of clamping wire depends on the pressure of ordinary bolt components, which is poor in firmness and easy to loosen.

Method used

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  • Electric power wire clamping fitting for preventing cable loosening
  • Electric power wire clamping fitting for preventing cable loosening
  • Electric power wire clamping fitting for preventing cable loosening

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0024] This embodiment is a kind of power clamping fittings to prevent the cable from loosening, see Figure 1 to Figure 7 As shown, it includes a jacking bolt 1 , a core tube 2 , a set of crimping assembly 3 and a set of pressing jaw assembly 9 .

[0025] The tube wall of the core tube is provided with a group of guide holes, and the group of guide holes includes four radial guide slide holes 22, and the four radial guide slide holes are evenly distributed on the core tube wall along the circumference of the core tube; The guiding sliding holes all penetrate the core tube wall along the radial direction of the core tube; each radial guiding sliding hole is located in the middle of the core tube in the axial direction, and the cross-sectional shape of each radial guiding sliding hole is I-shaped. An internal thread area 23 is provided in the lumen of the core tube.

[0026] The crimping assembly 3 includes four crimping parts 31; each crimping part is provided with a pressing...

Embodiment 2）

[0041] This embodiment is basically the same as Embodiment 1, the difference is: see Figure 8 to Figure 9 As shown, at least one crimping member 31 is provided with a mounting screw hole 315 penetrating through the wall of the pressing plate portion 311 in the radial direction of the core tube; a temperature sensing device 8 is fixedly installed in the mounting screw hole.

[0042] The temperature sensing device 8 includes a metal housing 81 made of metal material with a containing groove 811, a temperature sensor 82 arranged in the containing groove, and a spring 83 for crimping the temperature sensor on the bottom wall of the containing groove , The screw tube plug 84 that is used for limit spring.

[0043] One end 812 of the metal shell close to the central axis of the core tube is provided with a heat conduction boss 813 used as a puncture, and one end 814 of the metal shell away from the central axis of the core tube is provided with an inner hexagonal screw groove 815; ...

Embodiment 3）

[0051] This embodiment is basically the same as Embodiment 2, the difference is: see Figure 10 As shown, this embodiment also includes a current transformer 7; the current transformer includes an annular induction body 71 and an intelligent control module 72; in this embodiment, the intelligent control module 72 is made into a ring with the same size cavity as the annular induction body The ring-shaped inductive sensing body and the intelligent control module are arranged side by side to form a ring shape, and the current transformer is sleeved and fixed on the outer wall of the pressing plate part as a whole, that is, the crimping assembly is located in the cavity of the current transformer as a whole. In practice, the current transformer can also be fixedly arranged on the tube wall of the core tube, as long as all the clamping holes are located in the cavity of the ring-shaped induction body, that is, it is only necessary to make the cable pass through the hole of the ring-...

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Abstract

The invention discloses an electric power wire clamping fitting for preventing cable loosening. The electric power wire clamping fitting comprises an abutting bolt, a core tube, a crimping component and a pressing claw component. The tube wall of the core tube is provided with radial guide slide holes. The tube cavity of the core tube is provided with an internal thread area. The crimping component comprises multiple crimping members. Each crimping member is provided with a pressing plate part and anti-loosening connecting parts. The crimping members are detachably arranged on the core tube through the anti-loosening connecting parts. The pressing claw component comprises multiple pressing claws. Each pressing claw comprises a top plate part, a guide slide block part and a driving surface. Each guide slide block part is inserted into one corresponding radial guide slide hole. The abutting bolt comprises a body, an external thread area and an abutting boss. The shape of the abutting boss is a cone frustum. The external thread area of the abutting bolt is adaptive to the internal thread area of the core tube. The driving surface of each pressing claw is adaptive to the external circumferential wall of one corresponding abutting boss. At least one crimping member is provided with an installing screw hole with a built-in temperature sensing device. The electric power wire clamping fitting for preventing cable loosening is stable and reliable in installing fastness.

Description

technical field [0001] The invention belongs to the technical field of electric power fittings, and in particular relates to an electric power clamping fitting 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 fittings to connect two insulated conductors together. 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 insulating fittings as cable branches, the comprehensive benefits are obvious, and the cost performance is bett...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/38H01R4/48
CPCH01R4/38H01R4/48
Inventor 不公告发明人
Owner 胡小青
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