COLLAPSIBLE FRAME ASSEMBLY

摘要

A collapsible frame assembly having a first supporting frame and a second supporting frame mounted onto the first supporting frame in such a manner as to be movable up and down with respect to the first supporting frame. The frame assembly having three or more lazy tong arrangements pivotally connected to the first and second supporting frames. The frame assembly also has moving mechanisms for extending and retracting the lazy tong arrangements between a retracted position and an extended position that form respectively a collaps ed structure and an arch-like freestanding structure.