公开(公告)号：US5887615A

公开(公告)日：1999-03-30

申请号：US935120

申请日：1997-09-22

申请人： Hiroshi Goto ,  Tatuji Ishikawa ,  Masahide Takisawa ,  Toshihiro Koyama

发明人： Hiroshi Goto ,  Tatuji Ishikawa ,  Masahide Takisawa ,  Toshihiro Koyama

IPC分类号： B60K15/04 ,  F16K15/03 ,  F16K15/00

CPC分类号： F16K15/033 ,  Y10T137/7898 ,  Y10T137/7902

摘要： A check valve using a valve element (2) which is so constructed that the valve element comprises three members: a cover (4); an annular packing (5) and a pressing plate (6), the pressing plate (6) is provided with a snap fit claw (7), a flexible flange (12) pressed to the peripheral edge of a valve seat (11) when the valve element (2) is put in the valve closing state is formed on the outer periphery of the annular packing (5), a peripheral stepped part (13) to which the outer periphery of the pressing plate (6) is fitted is formed on the inner periphery thereof, the cover (4) is provided with a fitting hole (8) for the snap fit claw (7) and a peripheral wall (14) formed on the outer periphery thereof, to which the main body part of the annular packing (5) except the flange (12) is fitted, the annular packing (5) is fitted to the cover (4), the pressing plate (6) is fitted to the annular packing (5), and the snap fit claw (7) is fitted in the fitting hole (8), thereby clamping the annular packing (5) with the cover (4) and the pressing plate (6), in which while the convenience of assembling is kept, the sealing performance in the valve closing state is improved.

摘要翻译： 一种使用阀元件（2）的止回阀，该阀元件构造成使得阀元件包括三个构件：盖（4）; 一个环形填料（5）和一个压板（6），压板（6）设有一个卡扣配合爪（7），一个柔性凸缘（12）被压到一个阀座（11）的周缘， 在环状填料（5）的外周形成有阀体（2）的阀关闭状态，形成有压紧板（6）的外周嵌合的周边台阶部（13） 在其内周上，盖（4）设有用于卡扣配合爪（7）的装配孔（8）和形成在其外周上的周壁（14），其中，主体部分 安装了凸缘（12）以外的环形密封件（5），将环形密封件（5）装配到盖子（4）上，将压板（6）装配到环形填料（5）上， （7）安装在装配孔（8）中，从而将环形填料（5）与盖（4）和压板（6）夹紧，其中保持组装的方便，密封 提高了阀关闭状态的性能。