A solution is proposed for closing the mouth (125) of the container (110) for the liquid (105). The corresponding closure (135) is Securing means (318) for securing the cap (205) to the container (110) (the cap (205) is rotatable about the longitudinal axis (203) of the container (110) in a fixed state; (135) is secured to container (110)), delivery port (336) for delivering liquid (105) from container (110), into container (110) during delivery of liquid (105). A cap suction conduit (345) for aspirating air and a connector (342) (connector (342)) for connecting a liquid (105) delivery device (805) are in fluid communication with the delivery port (336). A) having a cap (205); Thread (406) for screwing cursor (205) into container (110), valve member (424) in closed position (valve member (215) closes delivery port (336)), and cap suction A cursor (210) having a cursor suction conduit (433) slidably connected to the conduit (345); A fragile element (351) for closing the cap suction conduit (345) or the cursor suction conduit (433), and Drag means (327, 409) for dragging and rotating the cursor (210) with the cap (205) (where the closure (135) is attached to the cap (205) in response to at least one rotation of the cap (205)) The cursor (210) is slid therewith, thereby moving the cursor suction conduit (433) to break the fragile element (351) and place the cursor suction conduit (433) in fluid communication with the cap suction conduit (345). Arranged to move the valve member (424) to the open position, wherein the valve member (215) opens the delivery port (336)); Is provided. [Selection diagram] FIG. 8C, FIG. 8D液体(105)のコンテナー(110)の口(125)を閉じるための解決策が提案される。対応するクロージャ(135)は、 コンテナー(110)にキャップ(205)を固定するための固定手段(318)(キャップ(205)は、固定された状態でコンテナー(110)の縦軸(203)の周りで回転可能であり、クロージャ(135)は、コンテナー(110)に固定される)、コンテナー(110)から液体(105)を送達するための送達口(336)、液体(105)の送達中にコンテナー(110)の中に空気を吸引するためのキャップ吸引導管(345)、および、液体(105)の送達デバイス(805)を接続するためのコネクター(342)(コネクター(342)は、送達口(336)と流体連通している)、を有するキャップ(205)、 コンテナー(