Automatic body turning bed

The invention discloses an automatic body turning bed which comprises a bed frame, a bed body, a plurality of hydraulic push rods and a driving device; the bed frame comprises brackets, a bed frame plate and hinge columns; the bed frame plate is rectangular; the brackets are fixed on the head side and the tail side of the bed frame plate separately; the hinge columns are arranged on the upper end face of the bed frame plate and are symmetrically distributed; the bed body comprises a fixed frame, two movable frames, a plurality of rolling rolls and an annular bed mattress; a skeleton comprises the movable frames symmetrically distributed about the fixed frame; the rolling rolls are arranged on the two long side edges of the movable frames correspondingly, and are in pin column connection with the movable frames; extension rods are perpendicularly arranged at the middle parts of the two short side edges of the movable frames; the annular bed mattress is in a two-end-opened flexible cylinder shape, and wraps the