Different diameter and groove clamp

Abstract

The invention discloses a reducing parallel groove clamp, which comprises upper clamp bases, a lower clamp base and fastening bolts, wherein the lower clamp base is provided with at least one upper clamp base; a lower large-diameter groove and a lower small-diameter groove which are symmetrically arranged in parallel are formed in the lower clamp base; the radius of the lower large-diameter groove is greater than that of the lower small-diameter groove; an upper large-diameter groove and an upper small-diameter groove are formed in each upper clamp base; the upper large-diameter grooves are located above the lower large-diameter groove; the upper small-diameter grooves are located above the lower small-diameter groove; grooves which are equal to the upper clamp bases in quantity are formed in the bottom surface of the lower clamp base; a lower through hole is formed in the center of the bottom surface of each groove; and an upper through hole is formed in each upper clamp base. The reducing parallel groove clamp has the advantages that a cable can be conveniently clamped into the corresponding groove; and the reducing parallel groove clamp can be directly used when two cables with different diameters need to be connected, so that complete contact of the upper clamp bases and the lower clamp base and the cables is ensured; the pole-mounted operation time is shortened; and the unified construction technology is ensured. Meanwhile, the grooves are formed in the bottom surface of the lower clamp base, so that the contact area with the fastening bolts or nuts can be expanded; and the clamping force of the upper clamp bases and the lower clamp base is ensured.

Description

technical field [0001] The present invention relates to a parallel grooved wire clamp of different diameters. Background technique [0002] Parallel groove clamp is the main wire connection fittings in line engineering. Among them, JB-2, which is more commonly used in distribution network 10kV lines, is suitable for wire cross-section of 70-95mm. 2 , JB-3 is suitable for conductor cross section 120-150mm 2 , JB-4 is suitable for conductor cross section 185-240mm 2 In actual engineering, it is often encountered that the 240-section wire is connected with the 120-section wire, or, the 240-section wire is connected with the 150-section wire. During the construction process, a circle of aluminum clad tape is wrapped around the surface of the small-section wire to achieve thickening. The cross section of the wire is then connected. [0003] Lap connection in the above way will make it difficult to select the type of parallel grooved wire clip. If the type selection is made wit...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide parallel groove wire clamps with different diameters, which can effectively solve the problems that existing two kinds of wires with different diameters are easily broken and burned when clamped by parallel groove wire clamps, and there are hidden dangers in production safety.

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