Space flexible unfolding structure capable of realizing two-dimensional step-by-step unfolding

The invention relates to a space flexible unfolding structure capable of achieving two-dimensional step-by-step unfolding. The space flexible unfolding structure comprises an air inlet valve, a main inflation connector, a distribution inflation connector, a center column structure, a top annular inflation pipe, a middle annular inflation pipe, a bottom outer ring annular inflation pipe, a bottom middle annular inflation pipe, a radial inflation pipe, a longitudinal inflation pipe and a skin. Folding packaging is carried out according to crease design, folding with a large storage ratio can beachieved, and under driving of inflation gas, ordered inflation unfolding of the large-space flexible inflation unfolding structure can be achieved. Due to the characteristics of large storage ratio,orderly unfolding control and the like, the inflatable unfolding structure can be widely applied to large cylindrical space flexible inflation unfolding structures. 本发明涉及一种可实现二维分步展开的空间柔性展开结构，包括进气阀、总充气接头、分布充气接头、中心柱结构、顶部环向充气管、中部