Sealing diaphragm for pneumatic diaphragm valve and pneumatic diaphragm valve

• Main Authors: CUI NINGHUA, ZENG MINGYING, ZENG CHANMIN
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• 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 sealing diaphragm for the pneumatic diaphragm valve comprises a rubber sheet, a cavity is formed in the middle of the interior of the rubber sheet, a mounting hole is formed in the middle of the rubber sheet, a rubber sleeve is arranged in the middle of the interior of the mounting hole, and a sealing ring is arranged in the rubber sleeve. And a plurality of uniformly distributed reinforcing ribs are arranged at the lower end of the rubber sheet. The utility model has the beneficial effects that through the arrangement of the rubber sleeve, when the rubber sheet is mounted, the rubber sleeve is compressed through the arrangement of the mounting screw rod, the first nut and the second nut, so that the connection between the rubber sheet and the mounting screw rod as well as between the rubber sheet and the first nut and the second nut is tighter; the situation that the rubber sheet is poor in sealing effect due to rotation of the mounting screw is prevented, the rubber sleeve is softer through the effect o