Patent ID: 6957667

Claim:
A multifunction tube joint comprising: an elongated body comprising: a main channel longitudinally therethrough; a protrusion thereon, said protrusion having a receptacle therein communicated with said main channel; and a tunnel vertically therethrough; a revolving valve rotably received through said tunnel, said revolving valve having a controlling channel vertically therethrough, said controlling channel is communicable to said main channel; a stem connected to said receptacle, said stem having a stem channel therein, communicable with said main channel; a branch connected to said stem, said branch having a branch channel therein communicated with said stem channel of said stem; a piston valve rod slidably received in said stem channel of said stem with a first end extended out thereof; a button mounted with said first end of said piston valve rod, said button being engagable with said stem; and a spring placed with one end against a bottom of said receptacle of said protrusion and with another end against an second end of said piston valve rod; wherein said piston valve rod is pressed against said spring to let said main channel to communicate with said branch channel through said stem channel, said piston valve rod being released to block communication between said main channel and said branch channel.