| 摘要 |
<p>The present invention relates to a cover for a food container having an inner pressure releasing function and a negative pressure forming function. The purpose of the present invention is to naturally release an inner pressure to the outside when the inner pressure inside a food container becomes higher than the atmospheric pressure by providing a valve to the cover; and forms a negative pressure by forcibly releasing the inner air of the food container to the outside by simple pumping. The present invention comprises: a cover body (210) provided to cover an open unit of a food container (100); and a valve device (300) provided to the center of the cover body (210) selectively connecting the external air with the inside of the food container even when the open unit of the food container (100) is closed.</p> |
