| 摘要 |
PURPOSE: A bottle cork is provided to identify whether the bottle is opened by naked eye. CONSTITUTION: The bottle cork comprises: a lower body(20) having a lower hole(22) to pass liquid in the bottle at the bottom side and to be inserted into the neck of the bottle; a middle plate(30) having the same area of the lower body(20) and inserted into the upper side of the lower body(20), the middle plate(30) having a hole; and an upper body(40) for covering the middle plate(30) and to be jointed to the lower body(20), the upper body(40) having an upper hole at the upper side; a cork(50) for covering the upper body(40) to prevent the liquid from being leaked, the cork(50) having an insertion bar(52); a middle plate penetrating member(60) set to the insertion bar of the cork(50) and to pass the middle plate(30) by force selectively.
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