Sealed container lid of vacuum valve operation type

Abstract

A sealed container lid of a vacuum valve operation type is provided, in which an engagement structure of a silicon packing is simple, and a relatively strong sealing force is obtained. A process for engaging or disengaging a lid to a container body may be performed based one-touch method. The sealed contained lid of a vacuum valve operation type comprises a body which is injection-molded and has a circular groove formed in a horizontally and outwardly opened shape for an engagement of the silicon packing, and a downwardly bent peripheral part which is formed at an outer peripheral part of the body based on a double injection method while surrounding the same.

Description

TECHNICAL FIELD

[0001] The present invention relates to a sealed container lid having a vacuum valve. BACKGROUND ART

[0002] Generally, according to a sealed container for sealingly storing a certain stuff by covering a container body using a lid, a packing is engaged at a container lid, and the packing keeps a close contact with a rim of the container body. A sealed container may be provided with a locking wing so as to obtain a sealed engagement force of a lid.

[0003] However, in the case of an engagement method of a simple structure lid, a sealing force is disadvantageously weak. In the case of a locking wing method, a sealing force of the lid is good, but opening and closing the locking wing causes many inconveniences when in use.

[0004] As shown in FIG. 3, a vacuum valve 22 is engaged at a center of the container lid 21. A silicon packing 23 is engaged near an outer side of the container body. When the container lid 21 is engaged with the container body 24, the silicon packing 2...

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