Soft sealing pneumatic butterfly valve

• Main Author: HONG JINYANG
• Format: Patent
• Language: Chinese; English
• Published: 21.11.2023
• 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 soft sealing pneumatic butterfly valve, which relates to the technical field of pneumatic butterfly valves, and comprises a valve body and a sealing assembly, a sealing groove is arranged on the inner wall of the valve body, the sealing assembly used for optimizing the sealing performance of the pneumatic butterfly valve is arranged in the valve body, and the sealing assembly comprises a sealing body, a sealing lip, a groove and a spring. A sealing lip is arranged on the outer wall of the sealing body, a groove is formed in the inner side of the sealing lip, and a spring is embedded in the groove. According to the soft sealing pneumatic butterfly valve, the sealing body is installed in the installation groove in the circumference of the valve plate, the spring is pressed to form outward tension, the sealing lip is promoted to be tightly attached to the sealing groove formed in the inner wall of the valve body, the spring permanently provides elastic force for the sealing lip, in