Spiral stair

The utility model discloses a spiral stair which comprises a motor and a plurality of driving steps driven by the motor, a rotating shaft is formed at one end of each driving step, and the driving steps can rotate around the rotating shaft. Driving devices for driving the driving steps to rotate are arranged at the other ends of the driving steps; the spiral staircase is driven by the motor, the driving device drives the driving steps to rotate around the rotating shaft, all the driving steps are unfolded around the rotating shaft, the spiral staircase is simple in structure, convenient to use and small in occupied space when folded, and the whole unfolded stage staircase is in a sector shape and is more attractive; the supporting leg columns play a role in supporting the driving steps and drive the driving steps to rotate through the rolling wheels. In the folded state, the supporting leg columns on every two adjacent driving regulators are arranged in an overlapped mode, and space is saved. 本实用新型公开一种旋转楼梯，包括