Patent ID: 7510326

Claim:
A moisture-proof sealing bag, comprising: a bag body defining a chamber capable of containing residual air and having an inner side and an opening; a position of the opening having a flexible belt, which is formed by a single strip or double strips; an exhausting valve having an upper end and a lower edge of the flexible belt of the bag body being installed with the exhausting valve; the exhausting valve including a valve body having a surface, an open side and first and second exhausting holes and wherein the first exhausting holes have an upper end of the periphery thereof, an exhausting unit, a valve gate and an elastomer; an end portion of the valve body having a plane combining surface; a center of the combining surface having a receiving chamber; a bottom of the receiving chamber being vertically installed with a hollow ring having an inner bottom; the inner bottom of the hollow ring being installed through the open side of the valve body of the first exhausting holes; the exhausting unit being installed inner the receiving chamber of the valve body and covering on the end of the hollow ring; the proper position of the end of the exhausting unit having second exhausting holes, which are interlinked through to the first exhausting hole; the valve gate being placed on the inner hollow ring, which is available to be up or down status and can cover the upper ends of the first exhausting holes; the elastomer being established between exhausting unit and valve gate by using the elasticity of the elastomer to enable the valve gate to be covered tightly on the upper ends of the exhausting holes continuously; the surface of the valve body being glued to the exhausting valve of the inner side of the bag body; by use of the surface of the valve body being glued to the exhausting valve of the inner side of the bag body and the opening of the bag body being sealed, and any residual air within the bag body being exhausted from the bag body; the chamber of the bag body being vacuumed so as to prevent from moisture and deteriorating the contents in the bag body as well as downsizing the volume of the bag body.