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Tension joint for overhead line

A technology for connecting fittings and overhead lines, applied in the direction of needle point/slotted plate contacts, circuits, connections, etc. used to penetrate insulated wires/cable core wires, it can solve problems such as poor firmness and easy loosening, and ensure stability Reliability, excellent anti-loosening effect

Inactive Publication Date: 2016-08-17
申俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • Tension joint for overhead line
  • Tension joint for overhead line
  • Tension joint for overhead line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0016] This embodiment is a connection fitting for overhead lines, see Figure 1 to Figure 4 As shown, it includes a core tube 2, two sets of pressing jaw assemblies 3, two flat nuts 4 and two sets of crimping assemblies.

[0017] The tube wall of the core tube is provided with six radial limiting sliding holes 22, and each radial limiting sliding hole runs through the core tube tube wall along the radial direction of the core tube; each radial limiting sliding hole is located in the axial direction of the core tube. In the middle part of the top, the radial cross-sectional shape of each radial limiting hole is I-shaped; the inner peripheral wall of the core tube is provided with an annular stopper 23 protruding inward. In this embodiment, the six radial limiting holes are divided into two groups, and the three radial limiting holes in each group are used for matching with a corresponding set of pressing jaw assemblies.

[0018] Each set of crimping components is used to adap...

Embodiment 2）

[0032] This embodiment is basically the same as the above-mentioned embodiment 1, the difference is that: see Figure 5 and Image 6 As shown, at least one crimping piece 1 is provided with a mounting screw hole 15 penetrating through the pressing plate part in the radial direction of the core tube; a temperature sensing device 8 is fixed in the mounting screw hole.

[0033] 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 pipe plug 84 that is used for limit spring.

[0034] 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; There ...

Embodiment 3）

[0042] This embodiment is basically the same as the above-mentioned embodiment 2, the difference is: see Figure 7 As shown, a current transformer 9 is sleeved and fixed on the outer peripheral wall of the crimping piece in this embodiment, and the current transformer 9 includes a ring-shaped induction body 91 and an intelligent control module 92; the overall shape of the intelligent control module is also ring-shaped; the ring-shaped The sensing body 91 and the intelligent control module 92 are arranged side by side.

[0043] The inner peripheral wall of the intelligent control module 92 is provided with two sockets protruding inward (not shown in the figure), and each socket is inserted into a corresponding socket, so that the temperature sensor and the intelligent control module connected to the central control circuit in the

[0044] This embodiment can be used to clamp three phase cables. At this time, this embodiment as a whole can be used as a high-voltage zero-sequenc...

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PUM

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Abstract

The invention discloses a connecting fitting for overhead lines, which comprises a core tube, a core tube, two sets of pressing jaw assemblies and two flat nuts; the inner peripheral wall of the core tube is provided with a crimping boss, and There is a radial limit slide hole, and a block is provided on the inner peripheral wall of the core tube; each set of pressure claw components includes a plurality of pressure claws; two flat nuts are rotatably arranged in the core tube lumen, and the two flat nuts are separated On both sides of the block; each plane nut includes a fastening portion and a plane threaded portion adapted to each pressure jaw in a corresponding set of pressure jaw assemblies; at least one crimping piece is provided with a mounting screw hole for a built-in temperature sensing device. The invention has the function of real-time temperature monitoring.

Description

technical field [0001] The invention belongs to the technical field of electric power fittings for overhead lines, and in particular relates to a connecting fitting for overhead lines. Background technique [0002] In the construction of overhead power lines, when the cables need to be branched or connected, it is necessary to use power line connecting fittings to connect two insulated conductors together. Power line connection 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 line connection fittings as cable branches, the comprehensive ...

Claims

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Application Information

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IPC IPC(8): H01R11/09H01R11/01H01R4/24H01R4/38H01F38/30H01F27/06
CPCH01R11/09H01F27/06H01F38/30H01F2038/305H01R4/2408H01R4/38H01R11/01
Inventor 申俊
Owner 申俊
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