| 摘要 |
A bottle top that comprises a tough plastic outer cap (11), a tough plastic inner cap (6) and a soft polymer stopper (4). The stopper fits inside the inner cap. The bottle has a bead (3) around its neck. The wall of the composed of several vertical strips (9). The strips are resilient radially outward and are held against the neck of the bottle by the outer cap. The bottom ends of the strips have a beveled-in edge (5) that engages the bottom edge of the bead, forcing the stopper against the upper surface of the bottle's neck. At least one area (8) of the inner cap's roof rips out. The outer cap has a hole over the rip-out area of the inner cap and screws over a thread (10) on the resilient strips that constitute the wall of the inner cap.
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