Patent ID: 8590574
Filing Date: 2013-11-26
Classification: B65D,Y10T

Abstract:
1. A gas stop structure capable of repeated inflation and deflation, comprising: a plurality of outer films; a gas chamber area, formed of the outer films through heat-seal bonding and comprising a buffer portion and a gas storage portion, wherein an area of the buffer portion is smaller than an area of the gas storage portion; a gas stop valve, located between the outer films through heat-seal bonding, wherein a part of the gas stop valve is located inside the buffer portion, and another part of the gas stop valve is exposed beyond the outer films; and a warp portion, formed of the outer films through heat-seal bonding and located between the buffer portion and the gas storage portion, wherein the warp portion comprises a connecting hole through which the buffer portion and the gas storage portion are in communication; when the gas chamber area is inflated with gas through the gas stop valve, a height of the inflated gas storage portion is greater than that of the buffer portion to form a sectional difference, so that the gas storage portion bends towards the buffer portion with the warp portion as a central point to seal the connecting hole; the gas in the buffer portion presses the gas stop valve to close the gas stop valve to achieve a double gas closure effect.