Patent ID: 7392969

Claim:
A height adjusting structure for supporting objects and adjusting height of the objects, comprising: a supporting body having at least one receiving portion, and at least one side of the receiving portion having a sliding groove with height difference; an axis block disposed on a top of the receiving portion; a shaft tube disposed in the receiving portion and having spiral trails on a surface thereof; a sliding base disposed in the receiving portion and sleeved on the shaft tube, a spiral connecting portion formed in an inner edge of the sliding base and corresponded to the spiral trails, and a position-limiting arm extend from at least one side of the sliding base, wherein the position-limiting arm passes through the sliding groove; and a torque unit having two end, one end thereof fixed and the other end thereof connected with the shaft tube; whereby the sliding base supports objects and the sliding base is slid along the sliding groove in the receiving portion to adjust height of the objects, and simultaneously drive the shaft tube to rotate so that the torque unit connected in the shaft tube is compressed to produce resisting force which equal to gravity of the supported objects with the sliding base so as to position the sliding base.