Automatic water pressure control valve balancing temperature of mixed water

An automatic water pressure control valve balancing the temperature of mixed water of the present invention, comprising:

• a main body including:
• a hot water inlet and a cold water inlet, bent and facing each other;
• a piston spacer within the main body connected with the hot and the cold water inlets;
• a first spacer in one side of the cylinder spacer to store a predetermined quantity of hot water;
• a second spacer, connected with a female screw penetrating to the outside of the main body, in the other side of the cylinder spacer to store a predetermined quantity of cold water;
• a transition opening between the piston spacer and the first spacer;
• a hot water outlet connected with the first spacer;
• a cold water outlet connected with the second spacer;
• and
• a backflow cutoff valve in each of the hot water outlet and the cold water outlet to prevent back flows of hot or cold water;
• a cylinder insertable through the female screw, the second spacer sequentially, including:
• a first inlet connected with the hot water inlet;
• a second inlet connected with the cold water inlet;
• at least more than one seal ring in the outer circumference of the cylinder to separate completely hot water from cold water in the piston spacer;
• a transition step within one side of the cylinder, adjacent to the second spacer;
• and
• a screw in one side of the outer circumference of the cylinder, adjacent to the second spacer;
• wherein one end of the cylinder is contacted with the transition opening of the cylinder spacer having boundary with the first spacer;
• a piston moveable in a predetermined distance in the inside of the cylinder, including:
• a hot water cavity connected with the first spacer and formed in one side from the center of the piston;
• a cold water cavity connected with the second spacer and formed in the other side from the center of the piston;
• a hot water hole perpendicular to the hot water cavity, opened or closed to the first inlet of the cylinder selectively;
• a cold water hole perpendicular to the cold water cavity, opened or closed to the second inlet of the cylinder selectively;
• a first pressure unit in one side of the piston;
• a second pressure unit in the other side of the piston;
• rounds in one ends of the first and the second pressure units making the piston slide easily in the inside of the cylinder;
• shock absorber rings in the transition opening and the transition step to absorb the impact energy generated by the rounds;
• a piston seal ring in the center of the outer circumference, contacted with the cylinder tightly;
• wherein one end of the piston is correspondent to the transition opening and the other end of the piston is correspondent to the transition step;
• and
• a cap including:
• a minor screw jointed with the screw of the cylinder inserting the piston;
• a major screw jointed with the female screw of the main body;
• and
• a cap seal ring;
• wherein the cap is sealed tightly by all of the minor screw, the major screw, and the cap seal ring.