A life-saving device for high-rise buildings

Abstract

The invention discloses a lifesaving device for a high-rise building. The lifesaving device is provided with a pulley device, and treading parts and handrails are mounted on the pulley device; escapepersonnel can slide down from one side of the pulley device through the treading parts and the handrails, in the sliding-down process, the feet tread on sensing cushions, the sensing cushions send a signal to a controller when sensing escaping of the certain personnel, and the controller receives the signal and judges the personnel number; and the pushing distance of a pushing rod is driven through the personnel number, the more the personnel are, the larger pressure applying to the pulley device is, and therefore, sufficient friction force is needed to prevent the pulley device from rotatingtoo. On the other hand, in order to avoid the situation that the friction force between the pulley device and a damping device is overlarge, and consequently a driving wheel rotates too slow, the pushing distance of the pushing rod needs to be controlled by judging the personnel number; and different diameters are set on the pushing rod, therefore, extrusion force applying to a rubber sleeve is different, the larger the push-out distance of the push rod is, the larger the extrusion force applying to the rubber sleeve is, and accordingly the friction force between the rubber sleeve and a connecting part is larger.

Description

technical field

[0001] The invention relates to a lifesaving device, in particular to a lifesaving device for a high-rise building. Background technique

[0002] The height of high-rise buildings generally exceeds 100m, and the height of supertall buildings can even reach 300m. This has brought great challenges to the traditional fire protection system. Although high-rise and super high-rise buildings are equipped with automatic sprinkler systems and internal fire hoses. However, the scope of action of the automatic sprinkler system is relatively limited; while the internal fire hose must be manipulated by personnel entering the fire scene. What's more deadly is that if the fire causes damage to the electrical system of a high-rise building, the automatic sprinkler system and internal fire hoses will all fail. And the employed aerial ladder car height of fire-fighting is then generally within 100m at present, for the high-rise building fire exceeding the aerial ladder car...

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