Cold and hot water mixing valve characterized by suppressing abnormal sound without lowering hot water temperature adjusting performance

• Main Authors: MARUYAMA, ZENTA, KAWASHIMA, TAKUMA, NEGISHI, ISAO, HATAKEYAMA, NANAMI
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2020
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

Disclosed is a cold and hot water mixing valve which can suppress abnormal sound without lowering hot water temperature adjusting performance. The cold and hot water mixing valve at least includes: a casing which is in a cylinder shape and has the hot water inlet A, the cold water inlet B, the mixing chamber C mixing cold water and hot water, and the mixed water outlet D discharging the mixed water; the actuator 4 received inside the casing; and the control valve body 2 which adjusts the opening levels of the hot water inlet and the cold water inlet. By using the extension of the actuator to make the control valve body move forwards or backwards relative to the axial direction of the casing, the ratio of hot water and cold water is adjusted so as to make the temperature of mixing cold water and hot water become a predetermined temperature. The cold and hot water mixing valve is equipped with the O-ring 10 which is disposed between the casing and the control valve body 2 and between the hot water inlet A and t