Wire line for coal mine rescue

Abstract

The invention relates to a wire line for coal mine rescue. The wire line is characterized by comprising a central bundle and an outer bundle. The outer bundle is covered outside the central bundle. The central bundle is pledget, the outer bundle comprises a communication copper wire twisted-pair line and an outer steel wire, a plastic insulating layer is covered outside the communication copper wire twisted-pair line, and the outer steel wire is covered outside of the plastic insulating layer. The wire line for coal mine rescue has the advantage of capability of conducting audio conversation signal transmission.

Description

technical field [0001] The invention relates to a steel wire rope, in particular to a steel wire rope for coal mine rescue. Background technique [0002] At present, in order to ensure the occurrence of safety accidents in the coal mine industry, it is impossible to communicate directly with the underground personnel through effective communication lines during the fast and efficient rescue, which brings a lot of inconvenience to the rescue. Contents of the invention [0003] The object of the present invention is to provide a coal mine rescue steel wire rope capable of transmitting audio dialogue signals. [0004] The content of the present invention is: a steel wire rope for coal mine rescue, which is characterized in that it consists of a central strand and an outer strand; the outer strand is covered outside the central strand; the central strand is a hemp rope, and the outer strand includes a Twisted copper wires and outer steel wires are coated with a plastic insula...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to ensure the occurrence of safety accidents in the coal mine industry, it is impossible to communicate directly with the mine personnel through effective communication lines during the fast and efficient rescue, which brings a lot of inconvenience to the rescue.

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