| 摘要 |
PURPOSE: A stopper for a beverage container is provided to use the air pressure discharged from a tube-type small air pump for smoothly opening the stopper and enabling users to easily drink a beverage from the container. CONSTITUTION: A stopper(20) for a beverage container includes an inner container body, an outer container body, a repulsion unit, and a pumping unit. The inner container body includes a coupling groove with screw threads on the inner circumference to be coupled to a screw unit formed on an inlet of a bottle(10), and a protrusion with a first flow passage projected from the upper side of the coupling groove. The outer container body is fitted to the inner circumference of the inner container body to be ascended, and includes a second flow passage connected to the first flow passage. The repulsion unit induces the descending of the outer container body. The pumping unit includes a ring member contacting the lower side of the outer container body, a tube, and a pneumatic chamber filled with air. |
