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.

1 . In a sealed container lid of a vacuum valve operation type which includes a vacuum valve as operating with a certain pressure by communicating an interior of a container body and the outside or disconnecting the same, and a silicon packing for sealing the interior of the container body in close contact with an inner wall surface of the container body, a sealed contained lid of a vacuum valve operation type, comprising: 
 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.    
   
   
       2 . In a sealed container lid of a vacuum valve operation type which includes a vacuum valve as operating with a certain pressure by communicating an interior of a container body and the outside or disconnecting the same, and a silicon packing for sealing the interior of the container body in close contact with an inner wall surface of the container body, a sealed contained lid of a vacuum valve operation type, comprising: 
 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, said downwardly bent peripheral part being separately formed and assembled at the body.    
   
   
       3 . The lid of either  claim 1  or  claim 2 , wherein said downwardly bent peripheral part includes protrusions for enhancing an engagement force with respect to the body.