1. A cover (10) for a container with a drink that allows the beverage to be sucked from the container through the nozzle (20) and prevents leakage in the absence of suction, with a control valve (16, 18) integrated in the cover (10), which includes an inlet (184) , 186) communicating with the inside of the container, an outlet communicating with the nozzle (20), and an adjustment port communicating with the surrounding atmosphere through an opening (101) in the cap, the valve also includes a valve seat (184) and a locking element ( 164), regulating the passage of flow between at the inlet and outlet, and the locking element (164) under pressure moves to the position of tight contact with the valve seat (184) and moves to the open position depending on the overpressure in the adjustment hole relative to the pressure in the outlet, and the movement of the locking element (164) for opening the valve occurs in a direction opposite to the direction of fluid flow through the valve, while the control valve includes two elements mounted on the inside On the lower surface of the cover, the first element (18) is rigid and includes a valve inlet and a valve seat (184), and the second element (16) includes a valve locking element (164) and an elastic membrane connected to the valve locking element, which performs the function of the pressure of the membrane, while the second element (16) is in tight contact with the first element (18) and covers the hole (101) in the lid, which leads to the fact that the second element (16) covers and tightly contacts the entire outer rim of the first element (18 ) ! 2. The cover according to claim 1, from
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