Piston member and valve

• Main Authors: LIN YUANYANG, XIONG YUNJUN
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2023
• 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 piston component comprises a piston bowl, an elastic expansion piece and a fixing plate, the elastic expansion piece is arranged on the inner side of the piston bowl and can tightly press the piston bowl in the radial direction of a valve cavity so that the piston bowl can tend to expand towards the inner wall of the valve cavity, and the fixing plate is provided with a limiting ring. The fixing plate can be arranged on the outer side of the piston bowl in a sleeving mode through the limiting ring, and the piston bowl can be stopped at the limiting ring of the fixing plate. According to the piston component and the valve, the size change after the piston bowl is abraded can be compensated, and the problem that the friction resistance between the piston bowl and the valve body is increased is avoided. 本申请涉及一种活塞部件及阀，活塞部件包括活塞碗、弹性扩张件和固定板，弹性扩张件设于活塞碗内侧，且弹性扩张件能够沿着阀腔的径向压紧活塞碗，以使活塞碗具有朝向靠近阀腔内壁扩张的趋势，固定板设有限位环，固定板能够通过限位环套设于活塞碗的外侧，并且，活塞碗能够止挡于固定板的限位环处。本申请提供的活塞部件及阀能够补偿活塞碗磨损后的尺寸变化，并且避免了活塞碗与阀体之间的摩擦阻力增大的问题。