External-force-free mechanical multi-section type self-service lifting sickbed

The invention relates to an external-force-free mechanical multi-section self-service lifting sickbed. The external-force-free mechanical multi-section self-service lifting sickbed comprises a used sickbed body and a movable sickbed body; the used sickbed body and the movable sickbed body each comprise a sickbed body, and each sickbed body comprises a bed frame and a movable bed plate arranged on the bed frame; a driving mechanism for lifting or transferring each movable bed plate to the movable sickbed body is arranged on one side of the bed frame; each driving mechanism comprises a driving unit, a driving track for providing a moving place for the driving unit and a power source for providing power for the driving unit; the driving units can be fixedly connected with the movable bed plates, and can do lifting motion along the tracks of the driving tracks; each driving unit comprises a driving piece, a control piece and a locking piece; the driving tracks comprise a first track arranged on the using sickbed