公开(公告)号：US4932429A

公开(公告)日：1990-06-12

申请号：US311591

申请日：1989-02-16

申请人： Masatoshi Watanabe ,  Shinichi Hayakawa ,  Shiro Tsuji ,  Yasuyuki Sumigama ,  Naotake Okada ,  Genko Kitamura

发明人： Masatoshi Watanabe ,  Shinichi Hayakawa ,  Shiro Tsuji ,  Yasuyuki Sumigama ,  Naotake Okada ,  Genko Kitamura

IPC分类号： F16K1/36 ,  E03B7/12 ,  F16K31/64

CPC分类号： E03B7/12 ,  Y10T137/1353 ,  Y10T137/7737

摘要： This invention relates to a screw stopper including an anti-freeze device used for water pipe valve and fitted to the lower end portion of an open/close movable valve of said water pipe valve comprises: a small perforation penetrated centrally on the lower portion of the said screw stopper; a water-through recess formed on a countersink portion of the said screw stopper; a small movable member including a small valve for opening and closing an aperture of the said small perforation, and said small movable member partially defining an water-through passage; a pair of springs for holding said small movable member, at least of which is made of shape-memory alloy; an outer cylinder for holding said pair of springs screwed and fitted to the said screw stopper; and a packing for sealing up water by a valve seat.

摘要翻译： 本发明涉及一种螺旋塞，其包括用于水管阀的防冻装置，并安装在所述水管阀的打开/关闭可移动阀的下端部分上，包括：小孔穿入中心位于所述水管阀的下部 所述螺丝塞; 形成在所述螺钉止动器的埋头部上的通水凹部; 一个小的活动件，它包括用于打开和关闭所述小穿孔的孔的小阀，所述小的可移动件部分地限定一个通水通道; 一对弹簧，用于保持所述小型可移动部件，至少其中由所述形状记忆合金制成; 用于保持所述一对弹簧的外筒，所述弹簧与所述螺钉止动器螺合并配合; 以及用于通过阀座密封水的包装。