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Improved electric power fitting for overhead line

A technology for overhead lines and power fittings, used in overhead installation, electrical components, needle points/slotted plate contacts used to penetrate insulated wires/cable core wires, etc. The effect of reducing vibration, reasonable center of gravity distribution, and excellent anti-loosening effect

Inactive Publication Date: 2016-05-04
胡小青
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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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  • Improved electric power fitting for overhead line
  • Improved electric power fitting for overhead line
  • Improved electric power fitting for overhead line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This embodiment is an improved electric power fitting for overhead lines, see Figure 1 to Figure 5 As shown, it includes a base tube 1, a core tube 2, two sets of pressing jaw assemblies 3 and two flat nuts 4; the inner peripheral wall of the base tube is provided with a plurality of crimping bosses 11 along the axial direction of the base tube, and each crimping The inner wall of the boss is provided with an arc-shaped groove 111; the inner peripheral wall of the base tube is also provided with a plurality of positioning slide grooves 12 along the axial direction of the base tube; the core tube and the base tube are arranged concentrically and are located in the lumen of the base tube; The wall is provided with a plurality of supporting convex plates 21 protruding and extending radially along the core tube, and the outer end of each supporting convex plate is located in a corresponding positioning chute, so that the core tube is supported and positioned in the lumen of...

Embodiment 2

[0027] This embodiment is basically the same as Embodiment 1, the difference is: see Image 6 As shown, in this embodiment, a current transformer 8 is sleeved and fixed on the outer peripheral wall of the base pipe, and the number of the crimping bosses and claws is three, so this embodiment can form three clamping holes , for clamping the three phase cables. At this time, this embodiment as a whole can be used as a high-voltage zero-sequence current transformer to detect the existence of leakage current and find leakage faults in time.

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Abstract

The invention discloses an improved electric power fitting for an overhead line. The improved electric power fitting for the overhead line comprises a base tube, a core tube, two sets of press claw components and two flat nuts, wherein crimping bosses are arranged on the inner circumference wall of the base tube; radial limiting slide holes are formed in the tube wall of the core tube; a stopping table is arranged on the inner circumference wall of the core tube; each set of press claw components comprises a plurality of press claws; the two flat nuts are rotationally arranged in a tube cavity of the core tube, and are separately located at two sides of the stopping table; each flat nut comprises a fastening part and a flat thread part which is matched with the press claws in the one corresponding set of press claw components; an arc-shaped groove is arranged on the inner wall of each crimping boss; an arc-shaped clamping groove is arranged on the outer wall of a pressure plate part of each press claw; the arc-shaped clamping groove of each press claw and the arc-shaped groove of each crimping boss are clamped to form a wire clamping hole; and each flat nut drives the corresponding flat thread part to rotate in a reciprocating manner, so that the press claws in the one corresponding set of press claw components are driven to be close to or far away from the center of the core tube. The improved electric power fitting for the overhead line has an excellent anti-looseness effect.

Description

technical field [0001] The invention belongs to the technical field of electric power fittings for overhead lines, and in particular relates to an improved electric power 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 co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/00H01R4/28H01R4/38H01R4/24
CPCH02G7/00H01R4/24H01R4/28H01R4/38
Inventor 胡小青
Owner 胡小青
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