| 主权项 |
1. A closure for a container, comprising:
an upper part (1) having a disc (13) that can be connected to the container, the upper part (1) having an opening (2) for communicating with an interior of the container when the disc (13) is connected to the container, an outer hollow body (3) projecting from the disc (13) in a direction away from the container and an inner hollow body (4) arranged coaxially within the outer hollow body (3) and outward of the opening (2) with an intermediate space defined between the inner and outer hollow bodies (4, 3), the inner hollow body (4) projecting from the disc (13) by a selected length, a lower part (7) having an upper region and a tubular lower region, the upper region having an outer tube that extends from an upper end of the tubular lower region and that is longitudinally displaceable in the intermediate space for movement toward and away from the container with the outer hollow body (3) of the upper part (1) being telescoped over the outer tube, locking devices (8, 9) configured for restricting longitudinal displaceability of the lower part (7) in the intermediate space, a plug (5) held coaxially in the outer tube of the lower part (7) by circumferentially spaced retaining devices (6) axially beyond the inner hollow body (4), the outer tube and the plug (5) projecting from the retaining devices (6) sufficient distances relative to the selected length of the inner hollow body (4) to enable the plug (5) to close the opening (2) when the lower part (7) is moved relative to the upper part (1) toward the container (23) and to open the opening (2) and to permit fluid communication from the container (23) to the tubular lower region when the lower part (7) is moved relative to the upper part (1) away from the container (23).
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