Patent ID: 7546851

Claim:
A change valve for an air compressor, said compressor having a cylinder provided with a vent tube, and characterized in that said change valve comprises a connector provided with a connect tube formed at a first end connected with a lower end of said vent tube and a second end provided with an air hole communicating with said connect tube; a valve base connected to said second end of said connector and provided with a chamber in its interior and a hole formed in a second end to communicate with said chamber, at least two connect tubes fixed to extend radially spaced apart on an outer annular surface of said valve base and having a center hole communicating with said chamber, a guide tube connected with each said connect tube and having a joint fixed on an outer end; a valve body contained in said chamber of said valve base and provided with a first end formed with an annular groove on its surface, an air hole bored in said first end surface, said valve body further provided with an annular recess in an outer annular wall, a vent hole formed in said annular recess and communicating with said air hole, a plurality of projections formed spaced apart on said annular recess, and a rod member extending axially from a second end; an anti-leak gasket inserted in said annular groove of said valve body; a sleeve fitted around said annular recess of said valve body and provided with a vent hole in an annular wall and a plurality of insert recesses spaced apart on an inner surface; and, a button combined with an outer end of said rod member of said valve body.