Fire-proof and flame-retardant cable and wrapping mechanism for producing fire-proof and flame-retardant cable

Abstract

The invention relates to a fireproof and flame-retardant cable and a wrapping mechanism for producing the fire-proof and flame-retardant cable. The fire-proof and flame-retardant cable includes a plurality of inner cores, and each inner core includes a wire core and an insulating layer from the inside to the outside. and the shielding layer, and also includes an inner protective layer and an outer protective layer. The wrapping mechanism used to make the fireproof and flame-retardant cable includes a wrapping bracket, a wrapping device and a limit bracket arranged on the ground. A wrapping tube is provided, and there are two wrapping devices, and the two wrapping devices are arranged oppositely on the wrapping tube. The end of each part of the wrapping device close to the wrapping tube is the inner end, and the end far away from the wrapping tube is the outer end. , each of the wrapping devices includes a fixed rod, a movable rod, an adjustment ring, a wrapping rod and a tension adjustment part. The cable of the invention has the advantages of blocking flame burning and prolonging the continuous use time in a big fire.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a fire-resistant and flame-retardant cable and a wrapping mechanism for producing the fire-resistant and flame-retardant cable. Background technique [0002] The cable is usually a rope-like cable twisted by several or groups of wires (at least two in each group). Each group of wires is insulated from each other, usually twisted around a center, and the entire outer surface is covered with a high degree of insulation. overlay. [0003] The flame retardant and fireproof performance of existing cables is not high. The patent document with application number 201920992474.7 discloses a fireproof and flame retardant cable for coal mines, including an inner flame retardant layer. The inner wall of the inner flame retardant layer is fixedly connected with a halogen-free The outer end of the halogen-free flame-retardant filler block is uniformly provided with three through holes, and the...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the existing cables have poor flame-retardant and fire-proof properties and the corresponding wrapping mechanism cannot provide constant tension and the steps of disassembling and assembling the paper tray are cumbersome, the present invention provides a fire-proof and flame-retardant cable and a wrapping mechanism for producing fire-resistant and flame-retardant cables , the purpose is to provide a cable core with good fire and flame retardant properties and a wrapping mechanism with stable tension that does not require cumbersome fixed paper trays

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