Vacuum lid

The utility model discloses a vacuum lid, include: the enclosing cover, its middle part is regional sunken to be set up, and gas pocket and mounting hole have been offered to the sunk area bottom, stopper in the elasticity, including elasticity lid and the fixed part of locating elasticity lid below, in the mounting hole is located to the fixed part, and the mounting hole between have the free gap, elasticity blankets above the gas pocket, the button, locate the sunk area of enclosing cover in, and it is square beyond the great wall to be located elasticity, the button is including sealed lidand locate the sealed promotion section that covers the lower extreme, and the promotion section is used for pushing down the elasticity lid, wherein, the sealed sunk area inner wall that covers periphery and enclosing cover seals, the inner wall of sealed lid, promotion section, elasticity lid and sunk area encloses into the air cavity, and sealed covering is equipped with intercommunication aircavity and external throug