Patent ID: 6547161
Filing Date: 2003-04-15
Classification: B05B

Abstract:
A spray paint gun head structure comprising a gasket, a nozzle, a spray head and a nut connected in sequence to the tip of a spray gun, wherein, a nozzle tip being formed in the front center of the nozzle; a groove with its outer surface formed a push-pull surface being provided around the nozzle tip; the spray head being engaged to a nut; the nut being engaged to the nozzle for a circular indention formed inside the spray head to hold against the front of the nozzle; a push-pull wall on the edge of the indention being abutted to the push-pull surface of the groove of the nozzle; air ducts connecting through outer air bases being provided on an outer ring around the push-pull wall of the indention inside the spread head, and a spray hole in the center of the front side of the indention to accommodate insertion of the nozzle tip, characterized by that:a screw hole being formed in the front section of a passage where a regulation shaft extends from the tip of the spray gun to be engaged to the nozzle; an inner and an outer recess formed on the front surface of the spray gun respectively, each of the recess being respectively provided with an air outlet; a gasket being inserted between the front end of the spray gun and the nozzle; slots surrounding the center of the gasket at proper distance among one another being formed corresponding to the inner and outer recesses of the spray gun; a hollow screwed tube formed in the rear of the nozzle to receive insertion of the gasket before being engaged to the screw hole at the tip of the spray gun; an inner and outer recesses formed in the rear side of the nozzle; air ventilating holes connected through the groove being provided in the inner recess of the nozzle; a plurality of air outlets being provided in the outer recess of the nozzle; the inner and outer recesses of the nozzle abutted to slots of the gasket coupled to the inner and outer recesses of the spray gun to form a pressure regulation air port; and outer threads provided on the nozzle to receive the nut for the spray head to secure the nozzle in position by holding against the nozzle.