Composite cable

Abstract

The invention discloses a composite cable. The composite cable comprises a cable outer protection layer, a mounting cavity is formed in the cable outer protection layer; a cable core wire is mounted in the mounting cavity; more than one group of anti-shearing assemblies are uniformly distributed on the cable outer protection layer along the length direction of the cable outer protection layer; each group of anti-shearing assemblies comprises two interlayers arranged in the cable outer protection layer, a heat preservation layer is arranged in each interlayer, each group of anti-shearing assemblies further comprises two symmetrical protruding parts, compressed protection pieces are installed in the protruding parts, and after the heat preservation layers are damaged, the protection pieces extend into the interlayers and wrap the interlayers in a sealed mode. According to the composite cable, the purpose of automatically sealing a notch can be achieved after the cable is sheared and damaged, an internal core wire is better protected, meanwhile, metal filaments are reasonably utilized, and the compression resistance and the shearing resistance of the outer protection layer of the cable are improved.

Description

technical field [0001] The invention relates to the field of cables, in particular to a composite cable. Background technique [0002] There are many types of cables, which are also used in different occasions. When the cables are laid on the ground, they are prone to aging due to long-term use, or because they are laid in the soil, they are easily damaged by external operating equipment or external forces. Therefore, the cables are used for lifting In terms of strength and service life, the outer protective layer will be set as an armor layer, and a large number of metal filaments will be arranged inside to increase the strength. However, although there are many metal filaments in this way, they are evenly arranged along the circumference. On the cable, the shear and pressure are generally at the top, and the top and bottom require higher compressive capacity, so the current armored structure has poor compressive and shear resistance. If the top has an excellent Strength, ...

AI Technical Summary

Problems solved by technology

[0002] There are many types of cables, which are also used in different occasions. When the cables are laid on the ground, they are prone to aging due to long-term use, or because they are laid in the soil, they are easily damaged by external operating equipment or external forces. Therefore, the cables are used for lifting In terms of strength and service life, the outer protective layer will be set as an armor layer, and a large number of metal filaments will be arranged inside to increase the strength. However, although there are many metal filaments in this way, they are evenly arranged along the circumference. On the cable, the shear and pressure are generally at the top, and the top and bottom require higher compressive capacity, so the current armored structure has poor compressive and shear resistance. If the top has an excellent Strength, then the entire cable can be well protected, so the current cable structure design is unreasonable

Moreover, when the armored outer protective layer is damaged, there will be a breakage. If it is not repaired in time, it will cause external water vapor and dust to enter, and then corrode the internal core wire, resulting in a reduction in the service life of the core wire. All the cables are ignited due to local cable spontaneous combustion, and the fire resistance is poor when used in the cable shaft

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