Flame-retardant and compression-resistant cable

Abstract

The invention discloses a flame-retardant and compression-resistant cable comprising more than one fixing part. An elastic fire extinguishing assembly is fixedly arranged between the adjacent fixing parts. The outer part of the elastic fire extinguishing assembly is provided with more than one outer protection piece. More than one outer protection piece is arranged around the fixing parts at equaldistances in one circle and spliced with each other to form a circular outer sheath layer. Two chutes are respectively arranged on the end surfaces of the two sides of the fixing parts. A slide blockis arranged on the end surface of the outer protection piece facing the chutes. The outer protection piece is slidably buckled into the chutes through the slide blocks arranged on the two sides, anda group of spring is arranged in each chute. A through groove is arranged on the fixing part located between the two chutes. The cable adopts a different installation structure so that the cable has good compression-resistant and buffering capacity and better fire extinguishing performance and greatly prolongs the service life of the cable.

Description

technical field [0001] The invention relates to a cable, in particular to a flame-retardant and pressure-resistant cable. Background technique [0002] The cable generally includes the cable outer layer and the inner core wire. The core wire is protected by the cable outer layer. The function of the cable outer layer is to protect the cable core wire and prevent the cable core wire from being damaged after being cut and squeezed. And the current Many cables have the function of fire resistance and fire protection. After being burned by flames, they can resist the flame and prevent the core wire from contacting the flame. The fire spread, so the fire performance of the cable needs to be improved. In addition, the shear and compression resistance of the current cable outer layer is average. When the external force is sheared and pressed down, the outer layer of the cable is squeezed, and then the inner cable core is squeezed, which will be directly damaged due to excessive ex...

AI Technical Summary

Problems solved by technology

[0002] The cable generally includes the cable outer layer and the inner core wire. The core wire is protected by the cable outer layer. The function of the cable outer layer is to protect the cable core wire and prevent the cable core wire from being damaged after being cut and squeezed. And the current Many cables have the function of fire resistance and fire protection. After being burned by flames, they can resist the flame and prevent the core wire from contacting the flame. The spread of fire, so the fire performance of the cable needs to be improved

In addition, the shear and compression resistance of the current cable outer layer is average. When the external force is sheared and pressed down, the outer layer of the cable is squeezed, and then the inner cable core is squeezed, which will be directly damaged due to excessive extrusion. The core wire is damaged, and it is difficult for the person under pressure to notice that the cable has been touched, and the visibility is relatively low.

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