COVER FOR AIRTIGHT CONTAINER

摘要

A cover for an airtight container is disclosed. According to an aspect of the present invention, the cover for an airtight container comprises: a packing; a packing groove into which the packing is inserted; an air path engraved in the packing groove to enable air to be introduced and discharged; and a control protrusion formed in the air path to be in contact with the packing. As the cover is coupled to a container body to be sealed, contact between the control protrusion and the packing is temporarily released by pressure difference between the inside and the outside to allow air to be introduced and discharged.