Carrying ladder for floor densely-distributed fire evacuation exits

Abstract

A carrying ladder for floor densely-distributed fire evacuation exits comprises a fire alarm device, a carrying ladder and a driving device, wherein evacuation exits leading to the lower floor are distributed at the passage of each floor at intervals; the carrying ladder is arranged on an escape platform under the evacuation exit; two retractable support bodies of the carrying ladder are connected through a foot pedal; a control shaft at one end of each retractable support body is connected to a cylinder; gears on two sliding arms are engaged with toothed grooves; the driving device drives a rotating shaft and a drag cable turntable to rotate; telescopic sleeves arranged at intervals are longitudinally connected above the retractable support bodies; rollers arranged at the top ends of the telescopic sleeves are matched with a track fixed under the floor slab; a drag cable connected with the retractable support body and the driving device is arranged in the telescopic sleeve located at the lifting end of the retractable support body; a cover body is arranged at each evacuation exit; and a lifting device is arranged under the cover body. The carrying ladder provided by the invention is telescopically adjustable, and can be quickly started for work, and people can escape quickly and safely.

Description

technical field [0001] The invention relates to an evacuation exit for fire escape on a floor, in particular to a carrying ladder device for densely distributed fire evacuation exits on floors. Background technique [0002] With the rapid development of my country's economy, people's living standards have been greatly improved. There are shopping malls all over the country, and the abundant commodities bring great convenience to people's material needs. However, the disaster resistance and safety factor of shopping malls are not optimistic. Every year, fire accidents occur frequently across the country, seriously threatening people's lives and property safety. It can be seen from the existing shopping mall architectural design that the traffic between floors is implemented through elevators and stair safety passages set against the wall. In such a design, once a fire breaks out, the elevator will be out of service, and the safe passage of the stairs cannot allow a large num...

AI Technical Summary

Problems solved by technology

But the common feature of their technical solutions is that people must arrive at the fixed escape device to escape from the fire scene. If a fire breaks out at the position where this escape device is installed, these escape devices cannot be utilized so and the possibility of escaping is lost. effect

We know from the analysis of the death situation of fire personnel by the fire department that most of the causes of death in fire accidents are that people are shrouded in a large amount of smoke, cannot find a safe exit

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