Lifting type tribed

The invention relates to a lifting type tribed which comprises two end racks. Back plates are arranged between vertical edges on the same sides of the two end racks, lower, middle and upper beds are arranged between the end racks and the back plates, and four corners of the lower bed are connected to two ends of the lower edges of the two end racks. The lifting type tribed is characterized in thatthe end racks are of cavity platy structures, and vertical guide rails are arranged in the two vertical edges; upper wheel seats and upper pulleys are arranged at two ends of the inner side faces oftop plates of the end racks, and two lower wheel seats and two lower pulleys are arranged at two ends of the inner sides of bottom plates of the end racks; upper and lower slide blocks are arranged inthe vertical guide rails, and two corresponding rope holes are formed in the upper and lower slide blocks in the same end rack and four corners of the upper, middle and lower beds; vertical straightslots are formed in the inne