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    • 7. 发明申请
    • TAPPING STOP VALVE
    • 攻丝大桥
    • WO0196778A3
    • 2002-05-16
    • PCT/EP0106774
    • 2001-06-15
    • FRIATEC AGSICHLER WOLFGANGFASTANZ MATTHIASMAIER FABIANMUELLER GERHARD
    • SICHLER WOLFGANGFASTANZ MATTHIASMAIER FABIANMUELLER GERHARD
    • F16L41/08B23B41/08F16L41/02F16L47/02F16L47/34F16L47/00
    • F16L47/34Y10T137/6123Y10T408/5628Y10T408/896Y10T408/907
    • A tapping stop valve comprising a housing which can be electrically welded to a pipe and which contains a connection piece (2) with a drill (24) disposed therein in order to drill the pipe. The connection piece (32) has an inner surface (34). The tapping stop valve can be embodied in such a way that it can be manufactured easily yet, at the same time, offers a high degree of functional security. The drill (24) or a bushing (70), in which the drill (24) can be moved axially by means of a threaded connection (74, 76; 80, 82) is provided with an outer thread (32) which engages with the inner surface (34) of the connection piece (2) . The inner surface (34) is embodied in such a way that it is initially cylindrical adjacent to the outer thread (32) and an inner thread can be inserted into the inner surface (34) using the outer thread (32) by rotating the drill (24) or the thread (70) in an axial forward movement (30).
    • 甲攻丝机包括一壳体,其是尤其通过电焊连接到管道,并且包含一连接件(2)和所述用于轻敲管的钻头(24),所述具有内表面(34)的连接件(32)。 攻丝机发展到较低的建设的努力,一个简单的生产使,但高可靠性保证的作用。 为了这个目的,它建议在钻头(24)或套管(70),其中,所述钻头(24)通过螺纹连接的装置(74,76; 80,82)在所述可轴向移动,具有外螺纹(32),其 接合所述连接件(2)的内表面(34),该内表面(34)的外螺纹(32)随后的是通过旋转在轴向进给方向上的钻头(24)或所述套筒(70)最初为圆柱形并且其(30) 在所述内表面(34)通过所述外螺纹(32)的装置具有内螺纹被插入。