| 摘要 |
<p>A check valve and a vacuum pack having the same valve. The check valve includes a first body having a flow channel formed in a predetermined area thereof; a second body having a flow channel formed in a predetermined area thereof, the second body coupling with the first body; and an opening/closing member made of an elastic body fixedly arranged between the first and second bodiesand in close contact with the first body by an elastic force thereof to close the flow channel of the first body, wherein the opening/closing member has a flow channel formed in a predetermined area thereof, which is not in contact with the flow channel of the first body. The opening/closing member provides a force for opening or closing a flow passage inside the check valve from its own elastic force.</p> |
