Butterfly valve with high sealing performance

The invention discloses a butterfly valve with high sealing performance, and belongs to the technical field of butterfly valves, a first valve body and a second valve body are movably connected with each other, a lower slot II matched with a lower slot I is formed in the inner wall of the bottom of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHUANG JINCHUN, WANG ZENGBO, WANG CHUNYUAN, ZHANG MINGDE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	The invention discloses a butterfly valve with high sealing performance, and belongs to the technical field of butterfly valves, a first valve body and a second valve body are movably connected with each other, a lower slot II matched with a lower slot I is formed in the inner wall of the bottom of the second valve body, and a lower mounting cavity II matched with a lower mounting cavity I is formed in the outer wall of the second valve body; an upper slot II matched with the upper slot I is formed in the inner wall of the top of the second valve body; an upper mounting cavity II matched with the upper mounting cavity I is formed in the outer wall of the second valve body; pendulum shaft structures are arranged in the upper mounting cavity I and the upper mounting cavity II in a threaded manner; flashboards are movably arranged between the upper pendulum shaft structure and the lower pendulum shaft structure and are movably connected through toothed plates. The degree of freedom can be improved through the de