A first mounting cavity and a second mounting cavity are arranged in the brake box; The brake box is provided with a brake block, a first electromagnetic adsorption accessory, a first electromagnetic adsorption main body, a second electromagnetic adsorption main body and a second electromagnetic adsorption accessory, the second electromagnetic adsorption accessory is provided with a fastener, and the brake box is provided with a fastening hole which can be matched with the fastener.
A plurality of clamping holes are arranged on the running guide rail; The car door is movably installed on the car, and the car is provided with a driving device which is in driving connection with the car door and drives the car door to move; The control mechanism includes a control device and a speed sensor. The patented technology of the invention can effectively protect people in the car when the car falls, and prevent the car from falling again after it stops falling.