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...

AI Technical Summary

Benefits of technology

[0008] It is another object of the present invention to provide a sealed container lid of a vacuum valve operation type 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.

Problems solved by technology

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.

Since an assembling process is further needed, the mold and manufacture costs increase, and the productivity decreases.

However, in the above conventional art, it is impossible to form the circular groove as being opened in the horizontal direction due to the following reasons.

Namely, in the above structure, molds cannot be separated during the manufacture.

So, the conventional art of FIG. 4 may not be actually adapted to the industry.

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