One-way valve

• Main Authors: JI ZEMIN, ZHANG QUN, CHEN XINGLONG, ZHOU TIYAO, CUI PENG, YU HONGWEI
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2023
• 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 one-way valve, which belongs to the technical field of valves for oilfield development and comprises a valve body, a sealing seat, a sealing body, a limiting ring and an elastic piece. A containing cavity with openings in the two ends is formed in the valve body, and the two openings of the containing cavity are an air inlet and an air outlet respectively. The sealing seat comprises a sealing surface; the sealing surface is positioned in the accommodating cavity; the sealing body is arranged in the containing cavity and can move in a reciprocating mode in the axis direction of the valve body so that the head end of the sealing body can abut against or be separated from the sealing face, the one-way valve can be closed or opened, a limiting groove is formed in the tail end of the sealing body, and the limiting groove and the valve body are coaxially arranged; the limiting ring is arranged in the containing cavity and is close to the air outlet, and an inner ring of the limiting ring a