Hot and cold water mixing valve device

A hot and cold water mixing valve device for spouting and turning off a hot and cold water mixture, the mixing valve device comprising:

• a hot and cold water mixing valve unit being formed cylindrically, the hot and cold water mixing valve unit being configured to produce the hot and cold water mixture;
• a flow control valve unit being formed cylindrically, the flow control valve unit being configured to control a flow volume of the hot and cold water mixture;
• a valve device main body being formed cylindrically, the valve device main body including:
• a hot water inlet into which hot water supplied from a hot water supply source flows;
• a cold water inlet into which cold water supplied from the cold water supply source flows;
• an outlet from which the hot and cold water mixture is discharged;
• and a cylindrical portion being inside of the valve device main body and being configured to extend in a longitudinal direction of the valve device main body;
• a hot and cold water mixing valve housing having a watertight connection with one end of the cylindrical portion when the hot and cold water mixing valve housing is inserted from one end of the valve device main body;
• and
• a flow control valve housing being capable of watertight connection to other end of the cylindrical portion when the flow control valve housing is inserted from other end of the valve device main body;
• wherein one end of the hot and cold water mixing valve unit is configured to be connected in a watertight manner to an inside of the hot and cold water mixing valve housing;
• the flow control valve unit is configured to be connected in a watertight manner to the inside of the flow control valve housing;
• and
• wherein the hot and cold water mixing valve housing and the hot and cold water mixing valve unit are inserted from one end of the valve device main body while the flow control valve housing and flow control valve unit are inserted into the other end of the valve device main body,
• the inside of the valve device main body includes:
• a hot water passageway allowing communication between only the hot water inlet of the valve device main body and a hot water inlet of the hot and cold water mixing valve unit;
• and a cold water passageway allowing communication between only the cold water inlet of the valve device main body and a cold water inlet of the hot and cold water mixing valve unit;
• the cold water passageway is formed between the valve device main body and the flow control valve housing, between the valve device main body and the cylindrical portion, and between the valve device main body and the hot and cold water mixing valve housing;
• a downstream side of the hot and cold water mixing valve unit is configured to communicate with only the flow control valve unit via the hot and cold water mixing valve housing;
• and
• a downstream side of the flow control valve unit is configured to communicate with only the outlet on the valve device main body.