Liftable carriage

The utility model discloses a liftable carriage, including base, setting at the transport platform above the base, scissors formula elevating system, the drive mechanism of setting between base and transport platform, scissors formula elevating system includes two sets of scissors formula supports, every group scissors formula support comprises two middle part articulated support arms, and one ofthem end hinge on every group support arm upper portion connects in carrying the bench, and the other end on every group support arm upper portion is connected with the top sheave, carries the platform to be equipped with and keeps supplying the gliding limiting slide seat of going up of pulley, one of them end hinge of every group support arm lower part connects on the base, and the other end ofevery group support arm lower part is connected with the lower sheave, and the base is equipped with and supplies the gliding limiting slide seat down of lower sheave, drive mechanism includes lead screw, fixation nut, nut mou