Patent ID: 7828255

Claim:
A supporting rack having a compensating mechanism, comprising: a rack body having a base and a pair of support arms extending upwardly from the base, each of the pair of support arms having a cavity formed therein; an action force compensating assembly provided in the rack body, the action force compensating assembly comprising at least one elastic element, a hooking plate, a pair of dragging pieces each having one end connected to the hooking plate and a pair of rotating pieces, both ends of the elastic element being respectively firmly connected to the base and the hooking plate, the pair of rotating pieces being respectively disposed in the cavities at a distal end portion of a corresponding one of the support arms, an opposing end of each dragging piece being connected to an outer periphery of a corresponding one of the rotating pieces; a transmission element, one end thereof being firmly connected to the rotating pieces and pivoted on the support arms; and a supporting plate connected to another end of the transmission element.