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Goal Life-saving this life-saving platform is based on the principles of the design of the roly-poly. In the huge waves in the wind not have to worry about being knocked down. The main goal of life-saving material is PVC. People can stay in the middle part of the ball。The ball is a two-tier film, between the membrane and the membrane is inflated room and the two-film is connected by the tubular pillars. Chamber was separated into two parts, the upper part of the warehouse is filling positions, the lower part was full of water. Water in the lower part has played the role of ballast.
zhejiang university of sciences