Ankylosing spondylitis supporting device

The utility model discloses an ankylosing spondylitis supporting device which comprises a device body, an extension pad is arranged outside the device body, rotating shafts are connected to the outside of the extension pad, the rotating shafts are symmetrically distributed, a supporting backrest is connected to the outside of the rotating shafts, side plates are arranged outside the extension pad, and the side plates are arranged on the outside of the extension pad. The outer portions of the side plates are connected with inner threaded rings, the inner threaded rings are internally connected with threaded rods, and the outer portions of the threaded rods are connected with handles. A patient lies flat outside the device body, the angle of the supporting backrest can be adjusted according to the requirements of the patient, the supporting backrest is rotated through the rotating shaft, the supporting backrest is attached to the interior of the patient, the supporting mode is convenient, an operator can operat