Escalator safety device

The invention provides an escalator safety device, and relates to the technical field of safety devices. The escalator safety device comprises a transverse plate assembly and a vertical plate, whereinthe transverse plate assembly comprises a suction cup and a bottom plate, the suction cup is located at the right end of the transverse plate assembly, the suction cup comprises a connecting rod anda threaded shaft, the connecting rod is welded and fixed to the center of the left face of the suction cup, the threaded shaft is fixed to the left end of the connecting rod and connected with the suction cup, the bottom plate is located at the bottommost end of the transverse plate assembly and further comprises a circular shaft and a base plate, the circular shaft is welded and fixed to the upper surface of the bottom plate, the base plate is fixed to the upper end of the circular shaft and connected with the bottom plate, sliding plates integrated with the vertical plate are fixed to the centers of the upper end and