Coupling device and a faucet assembly having the same

A faucet assembly comprising:

• a faucet body including
• a main unit that has
• a housing having a mounting opening, and
• a connecting portion disposed in said housing, and including a base wall and two water pipes that extend from said base wall toward said mounting opening;
• and
• an operating unit connected to said main unit;
• a switch base including
• a seat unit that has a base seat, a plurality of angularly spaced-apart engaging portions mounted to said base seat, and two inlet portions extending through said base seat, and
• an inlet unit that is rotatable mounted on said base sea, and that has two linking pipes;
• and
• a coupling device including
• a fixing plate that has a circular fixing plate body made of metal and being adjacent to said connecting portion of said faucet body, and that is formed with an extension hole,
• a connecting plate that is made of plastic, and that has
• a ring-shaped surrounding portion connected to an end of said fixing plate body that is opposite to said connecting portion of said faucet body,
• an extending portion extending from said surrounding portion through said extension hole of said fixing plate, and
• an engaging portion extending from said surrounding portion in a direction opposite to said extending portion, and formed with a plurality of angularly spaced-apart engaging grooves that are respectively engaged with said engaging portions of said switch base, and
• a reinforcing plate that has a ring-shaped reinforcing plate body made of metal, connected to said engaging portion, being adjacent to said switch base, sleeved on said linking pipes, and having a periphery that is formed with a plurality of guiding holes being respectively in spatial communication with said engaging grooves;
• wherein said coupling device is rotatable from a lock position, where each of said engaging portions of said switch base is disposed in an end section of a respective one of said engaging grooves, to an unlock position, where said engaging portions of said switch base are registered respectively with said guiding holes of said reinforcing plate to permit withdrawal of said engaging portions from said engaging grooves, respectively;
• and
• wherein said linking unit is co-rotatable with said coupling device, such that said linking pipes are respectively aligned with said inlet portions of said seat unit and are respectively aligned with said water pipes when said coupling device is at the lock position, and such that said linking pipes are misaligned with said inlet portions of said seat unit and are misaligned with said water pipes when said coupling device is at the unlock position.