Liftable hospital bed

摘要

Disclosed is a liftable hospital bed, comprising a bedplate base frame (1) symmetrical about a transverse central plane and a longitudinal central plane, wherein two ends of the bedplate base frame (1) are provided with bed leg rods (2), the lower end of the bed leg rods (2) being hinged to a first roller device (3) in contact with the ground and the upper end of the bed leg rods (2) being connected to a second roller device (4), the second roller device (4) being slidable in tracks (5) on the bedplate base frame (1) and the tracks (5) being parallel to a longitudinal axis of the bedplate base frame (1); connecting rods (6) are hinged to the bed leg rods (2); and a turnover mechanism is further provided for changing included angles between the bed leg rods (2) and the bedplate base frame (1) to lift the bedplate base frame (1), the turnover mechanism comprises the connecting rods (6) and a thrust mechanism, end portions of the thrust mechanism drive the connecting rods (6) to rotate via a hinged four-rod mechanism (7), and the connecting rods (6) drive the bed leg rods (2) to turn over relative to the bedplate base frame (1), so that the lifting of the hospital bed is realized.

主权项

1. A liftable hospital bed having a bedplate base frame that is symmetrical about a transverse central plane and a longitudinal central plane, with two ends of the bedplate base frame being provided with bed leg rods with a lower end of the bed leg rods being hinged to a first roller device in contact with the ground, the liftable hospital bed comprising:
an upper end of the bed leg rods connected to a second roller device, the second roller device being slidable in tracks on the bedplate base frame and the tracks being parallel to a longitudinal axis of the bedplate base frame; connecting rods hinged to the bed leg rods; and a turnover mechanism for changing the angles between the bed leg rods and the bedplate base frame to lift the bedplate base frame, the turnover mechanism comprising the connecting rods and a thrust mechanism, wherein end portions of the thrust mechanism are configured to drive the connecting rods to rotate via, a hinged four-rod mechanism, wherein the hinged four-rod mechanism comprises a first circular tube and a second circular tube, wherein each end of the first circular tube and the second circular tube are hinged directly to the bedplate base frame, and the connecting rods are configured to drive the upper end of the bed leg rods relative to the bedplate base frame, thereby realizing the filling of the hospital bed; wherein an upper end of the connecting rods is fixedly connected to the second circular tube; wherein the thrust mechanism is a first turbine worm mechanism driven by an electrical motor, and a thrust rod is a worm of the first turbine worm mechanism, the first turbine worm mechanism is directly hinged to a lower end of a first connecting and support rod.