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Audio/video communication guide rope for fire control

A fire-fighting and conductor technology, applied in the direction of conductors, insulated conductors, power cables with shielding layers/conductive layers, etc., can solve problems such as inability to transmit images and audio to the outside, insufficient cable strength, blurred signals, etc., and achieve tensile strength Strong ability, good shielding effect and strong anti-interference effect

Inactive Publication Date: 2015-04-29
SHANGHAI FIRE RES INST OF THE MIN OF PUBLIC SECURITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing cables are used for fire communication, the transmitted signals are blurred, and the images and audio in the fire cannot be effectively transmitted to the outside. In addition, the strength of the existing cables is not enough, so they cannot be used in harsh conditions such as fire. place

Method used

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  • Audio/video communication guide rope for fire control

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Embodiment Construction

[0019] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0020] see figure 1 , the present invention described in the present invention is a wear-resistant photoelectric composite cable, comprising:

[0021] An optical cable core, the optical cable core includes a central strength member arranged in the center and a cable core and an optical cable core distributed in the circumferential direction of the central strength member alternately, the cable core and the optical cable core are twisted along the circumferential direction of the central strength member as one;

[0022] It also includes a metal shielding layer coated on the outside of the optical cable core and a tensile high-strength protective layer coated on the outer side of the metal shielding layer. The tensile high-strength protective layer...

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PUM

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Abstract

The invention discloses an audio / video communication guide rope for fire control. The audio / video communication guide rope comprises an optical cable core. The optical cable core comprises a center stiffener located at the center, and cables and optical cables distributed in the peripheral direction of the center stiffener in a staggered mode. The cables are used for transmitting electric energy, and each cable core comprises a conductor and an insulating layer covering the conductor. The optical fibers are used for transmitting video signals and audio signals. Each optical cable core comprises a PBT loose tube and an optical fiber unit attached to the inner side of the PBT loose tube. The cable cores and the optical cable cores are stranded integrally in the circumferential direction of the center stiffener. The audio / video communication guide rope further comprises a metal shielding layer covering the optical fiber cores and a tensile high-strength protection layer covering the metal shielding layer. The tensile high-strength protection layer is made of nylon, and waterproof fillings are arranged between the cable cores and optical fiber cores and the metal shielding layer and between the PBT loose tubes and the optical fiber units.

Description

technical field [0001] The invention relates to the field of cables, in particular to an audio and video communication guide rope for fire protection. Background technique [0002] A cable is usually made of several wires or groups of conductors (at least two per group) twisted around a center, which is shaped like a rope and covered with a high degree of insulation. When the existing cables are used for fire communication, the transmitted signals are blurred, and the images and audio in the fire cannot be effectively transmitted to the outside. In addition, the strength of the existing cables is not enough, so they cannot be used in harsh conditions such as fire. place. Contents of the invention [0003] The object of the present invention is to provide an audio and video communication guide rope for fire fighting to solve the above problems. [0004] The technical problem solved by the present invention can adopt following technical scheme to realize: [0005] An audi...

Claims

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Application Information

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IPC IPC(8): H01B9/00H01B9/02H01B7/18
Inventor 朱青张杰
Owner SHANGHAI FIRE RES INST OF THE MIN OF PUBLIC SECURITY