Rubber diaphragm combined valve core

• 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 discloses a rubber diaphragm combined valve core. The valve element comprises a valve sleeve, a sealing piece, a valve rod and a valve element body. A preformed hole is formed in thebottom end of the valve sleeve; a valve port is formed in the top end of the valve sleeve; a diaphragm is arranged at the top end of the valve port; a sealing piece is arranged at the joint of the diaphragm and the valve port; a valve rod is vertically arranged in the center of the interior of the valve sleeve. A pressing plate is fixed to the top end of the valve rod, a contact block is fixed tothe top end of the pressing plate, a valve element body is installed at the bottom end of the valve rod, a carbon steel reinforcing layer is arranged in the side wall of the valve element body, rigidspring sleeves are evenly arranged on the two sides of the carbon steel reinforcing layer, and the outer side of the valve element body is evenly coated with a polytetrafluoroethylene corrosion-resistant layer. Due to the fact