Wedge-shaped strain clamp

Abstract

The invention discloses a wedge-shaped strain clamp. The wedge-shaped strain clamp comprises a left shell, a right shell, an upper drawer, a lower drawer, an upper wedge block, a lower wedge block and hanging boards, wherein the left shell, the right shell, the upper drawer and the lower drawer are assembled to form a whole body, and a wedge-shaped hole with a rectangular longitudinal cross section is formed in the interior of the whole body; the area of the longitudinal cross section of the front end of the wedge-shaped hole is smaller than the area of the longitudinal cross section of the tail end of the wedge-shaped hole; the upper wedge block and the lower wedge block are arranged inside the wedge-shaped hole and are arranged oppositely; the upper surface of the upper wedge block and the lower surface of the lower wedge block are parallel to the inner side wedge-shaped surface of the upper drawer and the inner side wedge-shaped surface of the lower drawer for lamination respectively; arc-shaped grooves are formed in the lower surface of the upper wedge block and the upper surface of the lower wedge block respectively; a wire groove is formed between the arc-shaped grooves; an arc groove is formed in the tail end of the lower wedge block; a gland for fixing a wire is arranged at the tail end of the arc groove; double-lug structures are arranged at the tail end of the left shell and the tail end of the right shell respectively; one end of each of the hanging boards is inserted into the corresponding double-lug structures respectively, and is fixed through pin rolls. The clamp is round in shape, simple in structure and high in universality, can be repeatedly used, and is suitable for various voltage classes of circuits.

Description

Technical field [0001] The invention relates to a strain clamp, in particular to a wedge-shaped strain clamp. Background technique [0002] At present, most of the compression-type strain clamps used on domestic transmission lines are used, and wedge-shaped strain clamps are only used on agricultural distribution networks. Compression-type strain clamps are cumbersome in construction, requiring special hydraulic pumps and hydraulic machines, and require very high levels of operation of the construction personnel. A slight deviation in the crimping will cause the clamp to grip the wire to fail to meet the standard requirements. The existing wedge-shaped strain clamp has a small applicable cable diameter range, and is only suitable for small-section wires of agricultural distribution networks, and the grip strength can only reach 65% of the wires. Summary of the invention [0003] In order to solve the above problems, the present invention provides a wedge-shaped tension clamp, whi...

AI Technical Summary

Problems solved by technology

The construction of the compression tension clamp is cumbersome and requires a special hydraulic pump and hydraulic machine. It requires a very high level of operation of the construction personnel. A slight deviation in the crimping will cause the grip force of the clamp to the wire to fail to meet the standard requirements.

The applicable cable diameter range of the existing wedge-shaped strain clamp is small, and it is only suitable for the small cross-section conductors of the agricultural distribution network, and the grip strength can only reach 65% of the conductors

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