| 摘要 |
<p>A cap device for bottles, which is capable of containing an additive therein separate from a bottled material, and quickly mixing the additive with the bottled material to prepare a mixture in the bottle according to a simple rotating action of the cap device relative to the bottle. The cap device has a cap body (50) tightened to the mouth of a bottle, and additive containing part (100) assembled with the cap body (50) to define a cavity therein to contain the additive in the cavity. The cap device also has a valve means (V) which is installed in the neck of the bottle to open or close a lower end of the cavity of the additive containing part (100), in accordance with the rotating action of the cap body relative to the mouth of the bottle.</p> |
