Flame-retardant electric wire and cable

By designing a segmented flame retardant structure on wires and cables, using the combination of mobile ring, fixed ring, nitrogen and expansion film, effective blocking of flame is achieved, and the problem of poor flame retardant effect of existing wires and cables is solved, which significantly Improves the flame retardant performance of wires and cables.

CN222462435UActive Publication Date: 2025-02-11HENAN HONGDA CABLE CO LTD
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Patent Information

Application Number
CN202421072488.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2025-02-11
Estimated Expiration
2034-05-16

AI Technical Summary

Technical Problem

Existing flame retardant wires and cables cannot effectively prevent the flame from spreading when the fire spreads, resulting in burning the outside of the wires and cables, which has poor flame retardant effect.

Method used

A segmented flame retardant wire and cable is designed, adopting a combined structure of multiple moving rings and fixed rings, with a cavity and a ventilator inside. With the combination of nitrogen and expansion film, the flame retardant film will be employed when the fire is in the event of a fire. Push it into an umbrella shape to prevent the flame from spreading.

Benefits of technology

Through segmented flame retardant treatment, wires and cables can effectively block the flame when the fire comes, preventing the fire from burning along the wires and cables, significantly improving the flame retardant effect of wires and cables.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a flame-retardant wire and cable, which belongs to the technical field of wire and cable, and comprises a wire and cable body and a plurality of moving rings sleeved on the surface of the wire and cable body, and further comprises cavities arranged in the moving rings, and flame-retardant films fixed on the surfaces of the opposite sides of the moving rings, a plurality of supporting rods are hinged to the surfaces of the opposite sides of the moving rings, the supporting rods are obliquely arranged on the whole, and the supporting rods are hinged; the fixed ring sleeves the surface of the wire and cable body and is located in the middle between the moving rings; and the front and rear parts of the left and right sides of the fixed ring are communicated with ventilation pipes. The flame-retardant electric wire cable has a flame-retardant function, adopts sectional flame-retardant treatment, divides the whole electric wire cable into a plurality of sections, and when a fire occurs, the flame-retardant structure on the electric wire cable deforms, so that the fire on the electric wire cable is blocked, the fire is prevented from burning along the line of the electric wire cable, and the service life of the electric wire cable is prolonged. The wire cable is effectively protected, and the flame-retardant effect of the wire cable is improved.
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