| 摘要 |
A liquid (4) preservation device comprising a unitary container (3) to store a liquid (4), said unitary container (3) having a neck (32), said neck (32) comprising a nominal filling level indicator (33) for indicating a nominal filling level of the container (3), and a body underneath said neck (32) and fixed to said neck (32). The liquid (4) preservation device further comprises a stopper (2) insertable into the neck (32) of the container (3), said stopper (2) comprising a stopper body (20). Said stopper body (20) comprises a passage (23) through said stopper body (20), a lower limiter (242) and upper limiter (241) that protrude into said passage (23), said lower and upper limiter (241) defining within the passage (23) a confinement space (25) in between said limiters. Said stopper (2) further comprises a floatable element (24) confined in said confinement space (25), and movable within said confinement space (25) to an upper sealing position, wherein in said upper sealing position the floatable element (24) seals said passage (23). Said stopper (2) further comprises one or more sealing elements (21) provided between the outer side surfaces of the stopper body (20) and the cylindrical inner surface of the neck (32), so as to seal in the neck (32) to prevent the leakage of gas and liquid (4) between the stopper (2) and the neck (32) of the container (3). The stopper (2) of the inventive liquid (4) preservation device can be pressed down into the neck (32) of the container (3) after the container (3) has been filled with liquid (4) up to substantially the nominal filling level so that the floatable element (24) is moved to said upper sealing position. |
