Compact precise electric proportional valve

• Main Authors: LU CHENG, SU JUNKUN, ZENG YUSHEN
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2024
• 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 discloses a compact type precise electric proportional valve which comprises a valve body shell, an electric control module, a diaphragm assembly, a valve rod and a liquid crystal display screen, the electric control module, the diaphragm assembly and the valve rod are arranged in the valve body shell, and the liquid crystal display screen is arranged on the valve body shell. The electric control module comprises a diaphragm pressurization electromagnetic valve, a diaphragm decompression electromagnetic valve and a pressure sensor, and a cross-shaped protruding air nozzle is arranged at the position, over the valve rod, of the valve body shell. The cross-shaped protruding air nozzle is arranged in the middle of the lower shell and located over the valve rod, after the exhaust sealing gasket tightly presses the valve rod, the diaphragm assembly overcomes the elastic force of the rubber elastic gasket and continues to move downwards, the valve rod is separated from the cross-shaped protruding