Vacuum pump valve

A vacuum pump valve of a container having a receiving cavity subject to an interior pressure and an opening communicating with said receiving cavity, wherein said vacuum pump valve comprises:

• a valve body comprising a sealing platform sealedly attached on said container at said opening thereof, and a guiding sleeve upwardly extended from said sealing platform to form a suction channel, wherein said sealing platform has an operation slot formed thereon at a position within said suction channel and at least a through ventilating groove communicating said receiving cavity of said container with an exterior thereof, so as to allow suction of air from said receiving cavity through pressure differential between said interior pressure and an atmosphere pressure;
• and
• a suction diaphragm, which is disposed within said suction channel of said valve body, comprising an enlarged sealing head adapted to seal on said sealing platform to enclose said ventilating groove thereof and a guiding shaft extended from said sealing head to slidably mount at said sealing platform at said operation slot and to move said sealing head between a releasing position and a sealing position, wherein at said releasing position, said guiding shaft is upwardly slid along said operation slot to upwardly pull said sealing head apart from said sealing platform so as to allow air in said receiving cavity to be withdrawn through said ventilating groove, and at said sealing position, where said atmosphere pressure is greater than said interior pressure, said guiding shaft is forced to downwardly slide along said operation slot to seal said sealing head on said sealing platform at said ventilating groove so as to retain said container in a vacuum manner.