Single-layer turnover type double-side bicycle parking device and method

The invention discloses a single-layer turnover type double-side bicycle parking device and method. A plurality of parking racks are fixedly arranged in the axial directions of two rotating shafts; the right middle part of each parking rack fixedly sleeve outside the rotating shaft by using a clamping sleeve; two bicycle parking spaces are arranged on each parking rack; the structures of the two bicycle parking spaces are as same as each other; a front wheel fixing slide block is mounted on the internal section of each parking track; a rear wheel fixing slide block is mounted on the external section of each parking track; rotating shaft position sensors are arranged on the clamping sleeves; trigger type sensors are arranged on the front wheel fixing slide blocks; sensors for sensing whether a vehicle exists are arranged on the rear wheel fixing slide blocks; the sensors are all connected with a controller; the controller is connected with a position changing motor via a control wire; when the rotating shafts