Two -position three way change valve with limit function locks

• Main Authors: ZHAO WEN, DONG YUHAI, WANG XIJUN, SONG JIANGTAO, JIANG MING, CAO ZHIYONG, LI HONGEN
• Format: Patent
• Language: English
• Published: 09.09.2015
• 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

The utility model discloses a two -position three way change valve with limit function locks, including disk seat, case, actuating lever and locking device, wherein: the case is installed in the disk seat, thereby actuating lever and case fixed connection, is used for driving the case and rotates and to switch over between the first valve position and second valve position, locking device includes locking plate, down locking plate and positioning lock, goes up the locking plate sleeved inside and is connected on the actuating lever and with the actuating lever, and lower locking plate fixed mounting is equipped with the lockhole on going up the locking plate on the disk seat, be equipped with down the lockhole on the lower locking plate, and the actuating lever drives to be gone up the locking plate and rotate supreme lockhole along with the actuating lever and aligns with lockhole down when the case rotates to the first valve position, and the positioning lock is used for coordinating to fix with last lockhole, lower lockhole when the lockhole aligns under with at last lockhole locking the actuating lever. Through the utility model discloses the great economic loss and the bodily injury that can effectual prevent misuse lead to have played taking precautions againt calamity's effect.