Protection device that reply elevator falls

The utility model provides a protection device that reply elevator falls, include: install three piece at least cable wires in terraced well, the cable wire is arranged around the elevator is vertical, install the speedtransmitter on the elevator, the device is grabbed to the automation hook of installing on the elevator, and device and cable wire one -to -one are grabbed to automatic hook, automatic hook is grabbed the device and is included hook and electric drive device, and hook slidable installs on the elevator, and electric drive device and hook connection are stretched out to corresponding cable wire or are retract to the elevator in order to drive it, speedtransmitter and electric drive device. The utility model discloses can prevent that the elevator from continuing to fall, play the effect of protection elevator to save the passenger. 本实用新型提出了种应对电梯坠落的保护装置，包括：安装于梯井内的至少三根钢索，钢索围绕电梯竖直布置；安装于电梯上的速度传感器；安装于电梯上的自动钩抓装置，自动钩抓装置与钢索对应；自动钩抓装置包括钩爪和电驱动装置，钩爪可滑动的安装在电梯上，电驱动装置和钩爪连接以驱动其伸出至对应的钢索或缩回至电梯；速度传感器与电驱动装置。本实用新型能够防