Adjustable cable support suitable for cable with large height difference

Abstract

The invention relates to an adjustable cable support suitable for a cable with large height difference. The adjustable cable support comprises a plurality of groups of portal frames with different heights; the plurality of groups of the portal frames with different heights are fixedly arranged on the ground at intervals; each portal frame includes two bases, two stand columns and a plurality of cross bracings; the two bases are correspondingly fixed on the ground; the two stand columns are fixedly on the two bases respectively, so that the two stand columns are erected on the ground in parallel; the plurality of cross bracings are connected between the two stand columns at intervals; a plurality of clamps are arranged on the cross bracings; the cable is fixed through the clamps; and therefore, the cable can be fixed in a varied-height difference manner through the clamps on the front and rear portal frames. The adjustable cable support of the invention can be flexibly combined in a large-height difference environment; installation heights, positions and intervals are determined according to the field large-height difference environment; an angle can be automatically adjusted underthe action of gravity; the cable can be fixed at positions of varied different heights; the cable cannot be randomly shifted and has certain heat expansion and contraction margin; and the release of thermal mechanical stress can be realized.

Description

technical field [0001] The invention relates to an adjustable cable support for high-drop cable lines, which belongs to the technical field of power transmission and distribution cable laying. Background technique [0002] Most of the existing cable supports are fixed structures, which are directly fixed to the side wall of the well (tunnel), or fixed to the bottom of the well (tunnel) through columns. Usually, the height, length and installation position of the cable support are fixed, and only the supporting cable is provided. role, less flexibility. Especially in environments with high drop such as cable terminal shafts, vertical shafts, caissons, or cable tunnels with large slopes, it is necessary to realize the rotation in the three-dimensional space of the bracket, and the existing ordinary cable brackets (gate brackets) cannot be combined flexibly, which is safe. It is difficult to fix and realize the adjustment of the three-dimensional space, which greatly threatens...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing cable supports are fixed structures, which are directly fixed to the side wall of the well (tunnel), or fixed to the bottom of the well (tunnel) through columns. Usually, the height, length and installation position of the cable support are fixed, and only the supporting cable is provided. role, less flexibility

Especially in environments with high drop such as cable terminal shafts, vertical shafts, caissons, or cable tunnels with large slopes, it is necessary to realize the rotation in the three-dimensional space of the bracket, and the existing ordinary cable brackets (gate brackets) cannot be combined flexibly, which is safe. It is difficult to fix and realize the adjustment of the three-dimensional space, which greatly threatens the reliability of the cable operation

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