Metallic corrugated pipe guard cable

Abstract

The invention relates to a metallic corrugated pipe guard cable which belongs to a bridge guy cable or a suspension cable, comprising: a metallic corrugated pipe and a cable body inside the metallic corrugated pipe, wherein fillers are positioned between the metallic corrugated pipe and the cable body; the metallic corrugated pipe is a corrugated pipe made from stainless steel materials and aluminum or aluminum alloy materials or metallic materials with good corrosion resistance and favorable ocean and erosive industrial atmosphere erosiveness resistance, and the ripple shape of the metallic corrugated pipe is in a bamboo joint shape, a spiral shape or a vertical pivoting shape; the cable body is a steel wire bundle or a steel stranded wire bundle; and the fillers filled between the metallic corrugated pipe and the cable body are one of polyethylene, polyurenthane, asphalt, paraffin or anticorrosive grease materials. The metallic corrugated pipe guard cable has the good anticorrosive property and the long service life of an outer-layer jacket, therefore, the cable body is in an ideal anticorrosive environment for a long time, and the cable body has good corrosion resistance and long service life; in addition, the metallic corrugated pipe guard cable has good flexibility, is convenient to transport in a coiling way, and the outer-layer metallic corrugated pipe has less stress when the cable body stretches out.

Description

Technical field: [0001] The invention relates to a bridge stay cable or suspension cable, in particular to a protective cable with anti-corrosion function. Background technique: [0002] The existing domestic cable body protection is protected by parallel steel wire bundles or steel strands wrapped with high-density polyethylene and wrapped with wrapping tape. Its structure is as follows: figure 1 , figure 2 shown. It utilizes the high-density polyethylene protective sheath 7 and the inner layer of high-density polyethylene 8 to isolate the parallel steel wire bundles or steel strands from the external environment, so as to protect the internal cable body. Because the outer sheath—high-density polyethylene is easy to age under sunlight, cracks occur, which reduces the corrosion resistance of the cable body and limits the service life of the cable. For this reason, the drag cables must be regularly repaired and replaced, which not only increases maintenance costs, but als...

AI Technical Summary

Problems solved by technology

Because the outer sheath—high-density polyethylene is easy to age under sunlight, cracks occur, which reduces the corrosion resistance of the cable body and limits the service life of the cable

For this reason, it is necessary to regularly repair and replace the cables, which not only increases the maintenance cost, but also easily causes bridge accident hazards.

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