公开(公告)号：US06758237B2

公开(公告)日：2004-07-06

申请号：US10319810

申请日：2002-12-16

申请人： Wolfgang Sichler ,  Matthias Fastanz ,  Fabian Maier ,  Gerhard Mueller

发明人： Wolfgang Sichler ,  Matthias Fastanz ,  Fabian Maier ,  Gerhard Mueller

IPC分类号： B23B4108

CPC分类号： F16L47/34 ,  Y10T137/6123 ,  Y10T408/5628 ,  Y10T408/896 ,  Y10T408/907

摘要： A tapping valve having a housing which can be electrically welded to a pipe and which includes a connection piece (2) with a drill (24) therein for drilling the pipe. The connection piece has an inner surface (34). The drill or a bushing (70) in which the drill can be moved axially by a threaded connection (74, 76; 80, 82) is provided with an external thread which engages the inner surface of the connection piece. Inner surface (34) is constructed such that it is initially cylindrical adjacent the external thread (32) and an inner thread can be formed in the inner surface (34) using the external thread (32) by rotating the drill (24) or the thread (70) in an axially forward direction (30). The tapping valve is easy to manufacture and yet offers a high degree of functional reliability.

摘要翻译： 一种排水阀，其具有壳体，该壳体可以电焊接到管道上，并且包括具有用于钻出管道的钻头（24）的连接件（2）。 连接件具有内表面（34）。 钻头或其中钻头可以通过螺纹连接（74,76,80,82）轴向移动的衬套（70）设置有与连接件的内表面接合的外螺纹。 内表面（34）被构造成使得其最初是与外螺纹（32）相邻的圆柱形，并且可以使用外螺纹（32）通过旋转钻（24）或内螺纹（32）在内表面（34）中形成内螺纹 螺纹（70）沿轴向向前方向（30）。 排水阀易于制造，并提供高度的功能可靠性。