Turning-over device of nursing bed for old people

The invention discloses a turning-over device of a nursing bed for old people, and belongs to the field of nursing beds. The turning-over device of the nursing bed for old people comprises a supporting frame, a backrest plate, an auxiliary plate, a main bed plate and a turning-over plate, the backrest plate, the auxiliary plate, the main bed plate and the turning-over plate are all connected to the supporting frame, a rotating rod and a driven rod are rotationally connected to the supporting frame, and the rotating rod is rotationally connected with the driven rod through a first transmission mechanism; and a connecting rod is rotatably connected to the rotating rod, an arc-shaped rod is rotatably connected to the connecting rod, a rubber pad is fixedly connected to the arc-shaped rod, and the limiting rod is slidably connected to a clamping groove. The turning-over device is easy to use and convenient to operate, the old person is turned over by operating the turning-over mechanism, the labor intensity of nu