Adjustable whole vehicle lifting appliance

The invention relates to the technical field of vehicle lifting appliances, and discloses an adjustable whole vehicle lifting appliance. The adjustable whole vehicle lifting appliance comprises a portal frame, side plates are fixedly mounted at the left end and the right end of the portal frame, a screw rod is rotationally arranged between the two side plates, first threads are formed on the outer wall of the left side of the screw rod, second threads are formed on the outer wall of the right side of the screw rod, the first threads and the second threads are opposite in screwing direction, the outer walls of the first threads are in threaded connection with a first nut, and the outer walls of the second threads are in threaded connection with a second nut. According to the adjustable whole vehicle lifting appliance, a rotating crank drives a second chain wheel to rotate through transmission of a first chain wheel and a chain, the second chain wheel rotates to drive a driving wheel to rotate through a hexagon