Pressure sore prevention device for bedridden patient

The utility model discloses a bedridden patient pressure sore prevention device which comprises a device body, a shifting mechanism and a positioning mechanism, and the device body comprises a load bearing frame and a protection pad installed on the load bearing frame in an adhering mode. The shifting mechanism comprises a plurality of load bearing plates connected in the load bearing frame in a sliding mode, air cushions fixedly connected to one sides of the load bearing plates, positioning assemblies for fixing the load bearing plates to the load bearing frame and an inflator for inflating the air cushions, and the positioning mechanism is located on the load bearing frame and used for positioning the load bearing frame to the bed body. Then, the position of the load bearing plate can be moved to one side of the sores of the patient, so that the load bearing plate does not make contact with the sores, then the positioning piece is positioned on the load bearing frame through the bolt, the sores can be prote