| 摘要 |
The present invention relates to a packing-combination structure of a vacuum sealed pot case, wherein the packing-combination structure prevents a packing installed at a lid from being arbitrarily separated from the lid when the lid is opened due to the release of the pressure. The vacuum sealed pot case automatically emits steam by a check valve installed at the lid due to the pressure increased in a pot case at the time of cooking; maintains a sealing state of the pot case to be automatically a vacuum state after cooking; and releases the pressure in the pot case to open the lid easily through an operation of the check valve installed at the lid when the lid is to be opened. For achieving the packing-combination structure, the packing installed at a rim of the lid is composed of a packing main body and a packing wing. The packing main body consists of an insert surface and an exposure surface, which are demarcated by a protrusion. The packing wing is made to be folded on the exposure surface. The packing is inserted into a packing groove rim. The packing groove rim is opened to the lower side of the rim and an edge portion of the packing groove rim has a blocking rim with a predetermined width, so that the insert surface of the packing main body is inserted into the packing groove rim and the packing wing is exposed to the outside of the blocking rim. This structure prevents the close contact between the packing main body and the packing wing, maintains the sealing strength of the packing, attains easy installation of the packing, and prevents arbitrarily separation of the packing after installation of the packing when the lid covers the case and the packing wing is placed on a support rim. |
