| 摘要 |
PURPOSE: An automatic stopper having a triple structure for secluding the air insertion is provided to enable users to tilt a container using the stopper for discharging contents and automatically close the container by standing the container. CONSTITUTION: An automatic stopper having a triple structure for secluding the air insertion comprises the following: a first stopper(10) in a plate shape; a second stopper(20) in a cone shape; a third stopper(30) in an egg shape; a connector(50) connecting the second and third stoppers; a sliding groove(61) formed on the upper side of a lid(60) for sliding the first stopper; a screw groove(62) corresponding to screw threads formed on a spout portion of a liquid container; a fixing string(40) floating inside the lid when the third stopper is upside down; and a weight(31) located inside the third stopper. The first stopper is produced with a coated metal material.
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