CN2548340Y - Aluminium alloy fast tension-resistant cable clamp - Google Patents

Abstract

The utility model relates to an aluminum alloy fast tensile wire-clamp, belonging to the design and manufacture field of tensile wire-clamp, which is used for tightening the conductor with terminals of two sides in tight line of high voltage power transmission and distribution conductor. A conductor clamping part and a clutch spring are arranged in the clamp pipe body; a support tailstock and a U-shaped screw are arranged at the back of the pipe body. The utility model is convenient for on-site construction and operation without any crimping tool, which has a good installation effect, and prevents the pipe body damage caused by crimping or explosive crimping of the prior products and a series of questions caused by screw loosening of the bolt tensile wire-clamp, which is a perfect tensile wire-clamp.

Description

The quick strain clamp of aluminium alloy

Technical field

The utility model belongs to design and the manufacturing technology field that two lateral terminals are used for straining the used strain clamp of lead in the high voltage overhead electric line upper conductor tension stringing section.

Background technology

At present, set up employed strain clamp in the operation, roughly have three kinds at electric line.A kind of is compression type, and wire clamp is an aluminium alloy system aluminum pipe, and lead is inserted at two ends during installation, with hydraulic tool it is compressed then, and lead is linked together.This product one is inconvenient, must carry heavy hydraulic tool, and operating speed is slow.In addition, aluminum pipe bears up to a hundred tons of pressure, and flow of metal own is very big, and the metal metallographic is subjected to changing in various degree.Crackle appears in the wire clamp body, causes mechanical strength to reduce and the accident that meets accident easily.Another kind is the blast compression type, and wire clamp also is an aluminium-alloy pipe, and after the lead insertion tube was interior, the outside was wrapped with explosive rope, and the powerful impulsive force by the moment of detonating makes wire clamp clamp lead.But because strong wallop also makes the wire clamp body be subjected to intense impact, change metallographic, mechanical strength reduces.Also has a kind of bolt strain clamp that is, by bolt clip tensile force lead.Owing to being subjected to wind-force, freezing or other vibrations cause screw loosening, cause lead in wire clamp, to slide and take out writing paper, the decline of lead sag causes the race line easily.Disadvantages such as these three kinds all exist installation inconvenience in a word, and effect is bad.Also in setting up the electric line operation, do not use at present with the utility model like products.

Summary of the invention

The purpose of this utility model provides a kind of strain clamp of quick connection, to solve existing product variety of issue in use.Structure of the present utility model is as shown in drawings: have the lead folder in the wire trap body, there is holddown spring at the folder rear portion, and there is a supporting tailstock at the body rear portion, on the supporting tailstock strain insulator arm-tie is arranged, and a U-shaped screw rod is arranged on the strain insulator arm-tie.Using method of the present utility model is: earlier the U-shaped screw rod on the body is fixed on the overhead line structures.Lead is penetrated from the body front hole, pass from tailstock hole, back.Holddown spring compresses in the wire clamp when lead makes to the fashionable external force of wire clamp interpolation, and folder moves to afterbody in pipe, and this moment, the folder diameter increased.When stopping to insert, be compressed spring and begin to discharge and promote folder and move forward, thereby lead is clamped.Be subjected to stringing tension force big more, then the clamping force to lead is big more, makes lead and wire clamp fluid-tight engagement together.The utility model is simple in structure, and is reasonable in design.Execute-in-place is very easy, need not other crimping tools and explosive, and high efficiency is fit to all kinds of areas and installs, and the scene need not test, and is safe and reliable, solved all disadvantages that existing product exists.

Description of drawings

Accompanying drawing is the utility model structural representation

The fixed stably nail of 1-wire clamp body 2-lead folder 3-holddown spring 4-strain insulator arm-tie 5-tailstock 6-body supporting tailstock 7-clamp nut 8-U shape screw rod

Arrow is the interspersed direction of lead among the figure

Embodiment

This product structure is as shown in drawings: have lead folder (2) in wire trap body (1), at lead folder rear portion holddown spring (3) is arranged.At the body afterbody one body supporting tailstock (6) is arranged, the supporting tailstock combines through fixed stably nail of tailstock (5) and body.Have strain insulator arm-tie (4) at the rear portion of wire trap body.One U-shaped screw rod (8) is arranged on the strain insulator arm-tie, a clamp nut (7) is arranged at the screw rod rear portion.

Claims (1)

1. The quick strain clamp of aluminium alloy, it is characterized in that in wire trap body (1), having lead folder (2), at lead folder rear portion holddown spring (3) is arranged, at the body afterbody one body supporting tailstock (6) is arranged, the supporting tailstock combines through fixed stably nail of tailstock (5) and body.Have strain insulator arm-tie (4) at the rear portion of wire trap body, a U-shaped screw rod (8) is arranged on the strain insulator arm-tie, a clamp nut (7) is arranged at the screw rod rear portion.

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