composite cable

Abstract

The invention discloses a composite cable, which comprises a cable outer protective layer. There is an installation cavity in the cable outer protective layer, and a cable core wire is installed in the installation cavity. The cable outer protective layer is uniformly arranged along the length direction of the cable outer protective layer More than one set of shear-resistant components, each set of shear-resistant components includes two compartments set in the outer protective layer of the cable, each compartment is provided with an insulation layer, and each set of shear-resistant components is also It includes two symmetrical bulges, each of which is equipped with a compressed protective piece, and when the insulation layer is damaged, the protective piece extends into the compartment and seals and wraps the compartment. The composite cable of the present invention can achieve the purpose of automatically sealing the gap after the cable is sheared and damaged, better protect the inner core wire, and at the same time rationally use metal filaments to increase the compression and resistance of the outer protective layer of the cable. shear capacity.

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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