Guide valve and main valve body connecting structure and method

• Main Author: ZHU FANGYING
• Format: Patent
• Language: Chinese; English
• Published: 13.05.2022
• 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 invention discloses a pilot valve and main valve body connecting structure and a connecting method.The pilot valve and main valve body connecting structure comprises a main valve body, a pilot valve component detachably installed on the main valve body and a rotor assembly installed on the pilot valve component, and a coil assembly is arranged outside the rotor assembly; the pilot valve component comprises a pressing ring and a thin-wall sleeve part which is welded to the pressing ring and extends upwards, the pressing ring is in interference fit with a valve element seat of the pilot valve component to form the whole pilot valve component, and the outer diameter of the pressing ring is larger than that of the thin-wall sleeve part. After the pressing ring and the thin-wall sleeve part are welded into a whole, the whole is pressed into a valve element base of the pilot valve component, and the pressing ring and the valve element base are in interference fit to form the whole pilot valve component. Compare