Semiautomatic bridge-type anti-sliding device

The invention relates to a mine safeguard device, in particular to a semiautomatic bridge-type anti-sliding device. The semiautomatic bridge-type anti-sliding device mounted in an inclined shaft comprises a beam support disposed at the top of the inclined shaft, a bridge, a motor, and an operating table. Magnetic switches and limit switches are disposed on the beam support. A magnet is mounted on the bridge. The limit switches and the magnetic switches are disposed at the ends of the beam support, close to and far away from a moving shaft, respectively. A button for starting the bridge to ascend is disposed at a mouth of the inclined shaft, a button for starting the bridge to descend is disposed at the bottom of the inclined shaft, and a signal indicator is disposed besides each button. Each bridge descent and ascent control circuit is formed by serially connecting one button, one magnetic switch, one limit switch and one contactor. Through the bridge-type anti-sliding device, ascent and descent of the bridge