Check quadrant valve body

• Main Authors: LYU SHUYONG, CHEN XIYANG, XUE JIANXIAN, LIN YIHUAI
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2022
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; OTHER DOMESTIC STOVES OR RANGES; RANGES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; VENTILATING; WEAPONS

The invention discloses a check quadrant valve body which comprises a main valve control structure, a first control structure and a second control structure, the first control structure is arranged on one side of the interior of the main valve control structure, and the second control structure is arranged on the other side of the interior of the main valve control structure. The second control structure comprises a four-quadrant valve body inner cavity, a four-quadrant small-flow limiting groove, a four-quadrant medium-flow limiting groove and a four-quadrant large-flow limiting groove, and the four-quadrant small-flow limiting groove is formed in the inner wall of the four-quadrant valve body inner cavity. The check quadrant valve body is matched with a closed limiting groove step to limit a rotating shaft limiting needle at a closed position, limiting assistance is carried out, a needed rotating angle can be positioned through a second-quadrant and third-quadrant large-flow blocking column and a second-qua