Airless type cosmetic container with quantified contents discharging, contents leakage preventing and contents deterioration preventing functions

An airless type cosmetic container with quantified contents discharging, contents leakage preventing and contents deterioration preventing functions, the airless type cosmetic container comprising a nozzle button, the nozzle button having a nozzle hole, through which contents are discharged, the nozzle hole being provided with a step part formed at the inner surface thereof, a piston shaft connection part disposed in the central part thereof, and a second valve rod support rib also disposed in the central part thereof, a contents receiving vessel, in the upper part of which the nozzle button is fitted, and a piston shaft fixedly fitted in the piston shaft connection part, the piston shaft having a contents communication hole defined therein and a pumping piston integrally formed at the lower part thereof, a housing member, the housing member having a cylinder, in which the pumping piston is fitted, a contents sealing rib formed at the circumferential wall of the lower part of the cylinder, a plurality of vertical reinforcing ribs formed at the outer circumferential wall of the cylinder, and a contents introduction hole formed in the bottom surface of the cylinder, a second valve rod fitted in the contents communication hole of the piston shaft, the second valve rod having a tapered opening and closing part formed at the upper part thereof, and a nozzle button return spring disposed between the housing member and the nozzle button, wherein the airless type cosmetic container further comprises a quantified contents discharging support protrusion disposed at the inner surface of the lower part of the contents communication hole of the piston shaft, a first valve member location part disposed at the inner bottom surface of the cylinder of the housing member, a first valve member fixed to the first valve member location part, the first valve member being integrally formed with a contents opening and closing member having a support surface formed at the upper part thereof and a vertical guide rod having friction ribs protruding from the circumferential wall of the upper part thereof in opposite directions, a fitting part disposed at the lower part of the second valve rod, the fitting part is fitted in the first valve member in such a manner that the fitting part cannot be separated from the first valve member, a catching part disposed at the lower part of the fitting part, a guide hole, in which the vertical guide rod is fitted, and a nozzle hole opening and closing member fitted in the nozzle hole of the nozzle button, the nozzle hole opening and closing member having a contents opening and closing function.