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    • 1. 发明授权
    • Automatic pressure regulating valve for a pneumatic tool
    • 气动工具自动调压阀
    • US07373992B2
    • 2008-05-20
    • US11494144
    • 2006-07-26
    • Matthew R SterlingRobert E Sterling
    • Matthew R SterlingRobert E Sterling
    • B25B9/00
    • F16K17/30Y10T137/2642
    • A pressure regulating air valve assembly (100) for a pneumatic tool (90) is disclosed that is movable between an open position and a closed position such that the maximum pressure in the tool is limited to a predetermined value. The valve assembly include a fitting (110) with a central aperture (112) and an upper portion (114). A valve plate (130) is disposed in the fitting, and a collar (140) having an aperture (146) is retained in the fitting. A proximal end of a tubular piston (120) extends through the aperture, and a spring (118) biases the piston toward an open position. When the pressure in the hand tool exceeds a predetermined value, the pneumatic force on a distal annular head (126) of the piston urges the piston toward the valve plate (130), closing the valve. The valve plate may include a centering portion (134) and an elastomeric panel (136).
    • 公开了一种用于气动工具(90)的压力调节空气阀组件(100),其可在打开位置和关闭位置之间移动,使得工具中的最大压力被限制在预定值。 阀组件包括具有中心孔(112)和上部(114)的配件(110)。 阀板(130)设置在配件中,并且具有孔(146)的轴环(140)保持在配件中。 管状活塞(120)的近端延伸穿过孔,并且弹簧(118)将活塞朝向打开位置偏压。 当手工工具中的压力超过预定值时,活塞的远端环形头部(126)上的气动力将活塞推向阀板(130),从而关闭阀门。 阀板可以包括定心部分(134)和弹性体板(136)。