Rubber diaphragm for control valve

• Main Author: LIU XIYAO
• Format: Patent
• Language: Chinese; English
• Published: 12.11.2019
• 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 belongs to the technical field of rubber. The utility model relates to a diaphragm, in particular to a rubber diaphragm for a control valve. Rubber diaphragm and piston rod, an accommodating cavity is formed in the piston rod; a piston mounting column perpendicular to the rubber diaphragm is arranged in the center of the rubber diaphragm; a supporting edge is arranged at the integrally-formed position of the piston installation column and the rubber diaphragm, a thickening layer is arranged on the face, opposite to the piston installation column, of the rubber diaphragm, a cavity is formed between the rubber diaphragm and the piston installation column, a piston cover is arranged at the top end of the cavity, and a connecting rod is fixedly connected into the cavity. Theutility model is advantageous in that the structure is simple, through the combined action of a connecting rod, a pin shaft, a movable rod, a spring and a fixed block, the fixed block compresses a containing cavity and then c