Patent ID: 9375373
Filing Date: 2016-06-28
CPC Classification: A61G

Claim Text:
1. A liftable hospital bed comprising: (a) a bedplate base, wherein said bedplate base is supported by symmetrical bed leg rods located on two sides of said bedplate base, wherein a bottom end of at least one of said bed leg rods is hinged to a first roller device touching the ground; (b) a second roller device, wherein an upper end of said at least one of said bed leg rods is connected to said second roller device, wherein said second roller device is slidable in a track on said bedplate base, wherein said track is generally parallel to a longitudinal axis of said bedplate base; (c) a turning mechanism, wherein the turning mechanism is operable to change an angle between said at least one of said bed leg rods and said bedplate base in order to lift or lower said bedplate base, wherein said turning mechanism includes (d) wherein a lower end of said connecting rod is fixedly bonded to a first connecting plate, wherein said first connecting plate has a first sliding slot, wherein a supplementary plate is connected to said first connecting plate, wherein said supplementary plate has a second sliding slot, and wherein said first sliding slot and said second sliding slot are crossed with each other, and wherein there is a height difference between a plane in which said first sliding slot is located and a plane in which said second sliding slot is located, wherein said at least one of said bed leg rods is fixedly bonded to a first pin shaft and a second pin shaft, wherein said first pin shaft is slidably provided in said first sliding slot, and said second pin shaft is slidably provided in said second sliding slot.