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1. 发明申请

WO1980002731A1 MEANS TO RETAIN A VALVE STEM 审中-公开
标题翻译：意思是保留阀门
公开(公告)号：WO1980002731A1
公开(公告)日：1980-12-11
申请号：PCT/US1980000322
申请日：1980-03-25
申请人： ACF IND INC
发明人： ACF IND INC , HINRICHS J
IPC分类号： F16K01/22
CPC分类号： F16K1/22
摘要： A device which acts as a retainer to hold a butterfly valve stem (26) in the valve body upon shearing or breaking of the stem. Conventional butterfly valve stems are typically weakened in certain areas such as, for example, the areas where pins secure the butterfly valve member to the stem. If unusually high torque is placed on such a stem, shear failure may occur and fluid pressure in the valve body may tend to blow the sheared stem out of the stem bore. This problem is solved by the instant retaining device which includes pins (44) extending radially from the stem (26) which engage in abutting relation a support ring (64) mounted in a groove (56) in the bore and retained therein by a split retainer ring (70) to restrain any outward movement of the stem.
摘要翻译：一种作为保持器的装置，用于在阀杆的剪切或断裂时将蝶形阀杆（26）保持在阀体中。传统的蝶形阀杆在某些区域中通常会被削弱，例如，将蝶形阀构件固定到杆上的区域。如果在这种阀杆上施加了非常高的扭矩，则可能发生剪切破坏，并且阀体中的流体压力可能倾向于将剪切的杆吹出阀杆孔。该问题通过包括从杆（26）径向延伸的销（44）来解决，所述销（44）以与支承环（64）接合的方式接合，所述支撑环安装在孔中的凹槽（56）中并通过分开保持环（70）以限制杆的任何向外运动。

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