| 摘要 |
A leakage-proof bottle cap comprises a plug pipe has a threaded hole in the interior and has a plurality of outlet holes in the bottom wall. The outlet holes interconnect with a threaded hole. A plug rod has a thread, whereby the plug rod can be screwed into the threaded hole of the plug pipe. The plug rod has a central hole and has a prop ring along the upper side thereof. The prop ring has a plurality of slots. The cover has a threaded hole on the inner wall thereof, whereby the cover can be screwed into the thread of the mouth. A plurality of insert elements is formed along the inner wall above the threaded hole, and the insert elements can engage with the slots of the plug rod, whereby rotating the cover can drive the plug rod to enter the plug pipe and seal the outlet holes.
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