Fire-proof alarming cable

Abstract

The invention discloses a fire-proof alarming cable, which comprises an outer cladding layer, an inner cladding layer and a plurality of cable cores, wherein the outer cladding layer is arranged outside the inner cladding layer; the inner cladding layer is internally provided with the plurality of cable cores; the inner cladding layer is internally provided with a temperature detector; the temperature detector is internally provided with an alarm; a filling layer is arranged inside the inner cladding layer and located between the cable core and the temperature detector; a buffer layer is arranged between the inner cladding layer and the outer cladding layer; a heat preservation layer is arranged between the buffer layer and the inner cladding layer; one side edge, close to the outer cladding layer, inside the buffer layer is provided with a convex ball; one end, far away from the outer cladding layer, of the convex ball is provided with a supporting column; the place where the inner bottom end of the supporting column and the convex ball are connected is provided with an elastic surface; two side edges of one end, far away from the outer cladding layer, of the convex ball are provided with arc surfaces matched with the convex ball; a first separator is arranged below the arc surface; the supporting column passes through the first separator and extends below the first separator;the supporting column located below the first separator is sleeved with a first spring; the bottom end of the supporting column is provided with a clamping plate; and the clamping plate is an arc clamping plate.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a fire alarm cable. Background technique [0002] The cable is usually a rope-like cable formed by twisting several or several groups of conductors [at least two in each group]. Each group of conductors is insulated from each other and often twisted around a center. insulating cover. Many are erected in the air or installed underground or underwater for telecommunication or power transmission. [0003] However, the fire resistance of the existing cable is not good enough after a period of use. Once the cable catches fire, it will not only cause certain economic losses, but also endanger people's life and property safety. It is convenient for people to take certain measures in advance. [0004] For the problems in the related technologies, no effective solutions have been proposed so far. SUMMARY OF THE INVENTION [0005] In view of the problems in the related art, the pr...

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Problems solved by technology

[0003] However, the fire resistance of existing cables is not good enough after being used for a period of time. Once the cable catches fire, it will not only cause certain economic losses, but also endanger people's lives and property safety. It is convenient for people to take certain measures in advance

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