Butterfly valve

• Main Authors: ZHOU SHUMEI, ZHANG JIACHUN, CHEN DAWEI, MA XIMIN, WANG YONGCHAO, LI YIDONG, QIU JIBO, XIONG SHIJIE
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2018
• 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 invention relates to a butterfly valve. The butterfly valve comprises an upper end cover, a lower end cover, a valve plate, sealing members and a valve plate driver, wherein corresponding throughholes are formed in the upper end cover, the lower end cover and the valve plate, the center of the upper end cover is connected to the center of the lower end cover by a shaft, the valve plate is fixed to the shaft, the valve plate driver is used for driving the valve plate to rotate along the shaft, sealing grooves for rotating the sealing members are formed in the edges of the through holes ofthe upper end cover and the lower end cover, the sealing members are put in the sealing grooves, opposite bosses are additionally arranged in positions near the centers of the extension lines of the diameters and the central connecting lines of the through holes of the upper end cover and the lower end cover, and the upper end cover and the lower end cover are fixed together by virtue of the opposite bosses. 种蝶阀，包括上端盖、下端盖、