Patent ID: 8245721

Claim:
A tube coupling device comprising: a coupling member including a lower portion for coupling to a tubular member, and including a chamber formed in said lower portion of said coupling member, and including a peripheral casing formed on an upper portion of said coupling member, said peripheral casing including a peripheral flange extended from said upper portion of said coupling member and including a peripheral wall located above said peripheral flange and spaced from said peripheral flange for forming an inner peripheral space between said peripheral flange and said peripheral wall, and including a plurality of openings formed in said peripheral flange and communicative with said inner peripheral space of said peripheral casing and communicative with an environment of said peripheral casing, and including a peripheral fence extended upwardly from said peripheral wall of said peripheral casing, a lock nut attached to said peripheral fence of said coupling member for receiving a water, a water guide plate engaged into said peripheral fence and engaged with said peripheral wall of said peripheral casing, and including at least one passage formed therein, a partition member including an outer peripheral flange engaged into said inner peripheral space of said peripheral casing and anchored between said peripheral flange and said peripheral wall of said peripheral casing, and including a bore formed therein for allowing the water to flow from said at least one passage of said water guide plate and into said chamber of said coupling member, and a receptacle engaged into said chamber of said coupling member and including a space formed therein for receiving a valve member, and a spring biasing member engaged with said valve member for biasing said valve member to selectively engage with said partition member and to selectively block said bore of said partition member, and the water flowing from said lock nut and flowing through said at least one passage of said water guide plate being capable of forcing said valve member away from said partition member to allow the water to flow through said bore of said partition member and to flow into said space of said receptacle, and an air from the environment of said peripheral casing being capable of selectively flowing through said openings of said peripheral flange and into said space of said receptacle.