Patent ID: 7055794

Claim:
A storage bag air suction valve is comprised of a valve body, a flat valve, a control knob, and a lid; the air suction valve being assembled to the bag; and the air suction of the lid being used to draw out the air in the bag; the valve body being fixed to the bag, containing an air duct, multiple protruded bits extending inwardly being provided on the sidewall surrounding the air duct, a port in a diameter slightly smaller than that of the air duct being disposed below the air duct, and both of the air duct and port being connected through the interior of the bag; the flat valve being provided on its peripheral multiple recesses to admit flow of air, multiple supports being defined by those recesses, and the flat valve being filled in the air duct of the valve body to free descend to attach to the port; the control knob contains a hollow ring, an air discharge duct being formed in the ring, multiple chutes being provided on the peripheral of the ring in relation to those protruded bits, the control knob being provided in the air duct of the valve body, those protruded bits of the air duct being stick into their respective chutes; and the control knob engaging in longitudinal displacement in the air duct; and the lid being fixed to the valve body at where above the control knob, and an air suction port being provided to the lid at where in relation to the air duct and the air discharge duct of the control knob.