| 摘要 |
The cap (1) has an outer cap edge attached perpendicularly to circumference of the cap, and an internal thread for screwing a plug stopper (8). The plug stopper has a cylindrical screwing sleeve (9) with an external thread (10) for screwing in a threaded hole (11) of a central plug nozzle (7) of the cap. A sealing end (12) is provided with a conical multiple seal (13) formed by sealing rings (14), which are pressed by the screwed plug stopper at a conical inner sealing surface (18) of a sealing lug (19) attached to the threaded hole of the plug nozzle of the cap. |
