Butterfly valve with double-sealing structure

• Main Authors: HOU LUHAI, SUN YICHANG, YAN JIDONG
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• 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 relates to the field of butterfly valves, in particular to a butterfly valve with a double-sealing structure, which comprises a pipeline, a fixed sleeve fixedly mounted on the upper end face of the pipeline, a rotating ring arranged on the right side of the fixed sleeve, a rotating rod fixedly mounted at the left end of the rotating ring, and a first valve mechanism arranged in the pipeline and corresponding to the fixed sleeve. A second valve mechanism is arranged on the left side of the first valve mechanism, the first valve mechanism and the second valve mechanism are both in transmission connection with the rotating rod, and the first valve mechanism can conduct primary sealing on the pipeline. By means of the first valve mechanism and the second valve mechanism, when the rotating ring drives the rotating rod to rotate and drives the first valve mechanism to open and close the butterfly valve body, the second valve mechanism is synchronously driven to operate, the three sets of closing p