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    • 6. 发明专利
    • Corrugated screw-type pipe joint structure
    • 腐蚀螺杆型管接头结构
    • JP2000074271A
    • 2000-03-14
    • JP24097698
    • 1998-08-27
    • Nkk Corp日本鋼管株式会社
    • ONO YOSHIMIYOSHIKAWA MASAKIKATO AKIHIKOSUZUKI NOBUHISA
    • F16L15/00
    • F16L15/001F16L15/006
    • PROBLEM TO BE SOLVED: To provide a corrugated screw-type pipe joint structure capable of being easily manufactured and connecting thin pipes to each other through a pipe joint by reliably screwing a thin wall pipe with the pipe joint other by a simple structure.
      SOLUTION: A corrugated screw-type joint structure 1 is constituted by screwing a socket-type joint 2a and thin wall pipes 4a, 4b to one another. The socket-type pipe joint 2a is provided with tapered internal threads 3a, 3b having the corrugated spiral shapes in the whole thickness on the end inner surface, the thin wall pipes 4a, 4b having taper external threads 5a, 5b having the corrugated spiral shapes in the whole thickness are fitted to the pipe end outer surface from right and left end sides, the external threads 5a, 5b and the internal threads 3a, 3b are meshed with each other, and the thin wall pipes 4a, 4b are connected to each other through the socket-type pipe joint 2a. By this corrugated screw-type pipe joint 1, the thin wall pipes 4a, 4b and the socket-type pipe joint 2a can be easily joined to each other by fastening torque by being relatively rotated. Since the whole socket-type pipe joint 2a is lightweight, workability can be improved, and manufacturing cost can be reduced.
      COPYRIGHT: (C)2000,JPO
    • 要解决的问题:提供一种波纹螺旋式管接头结构,其能够通过可以通过简单的结构可靠地拧紧具有管接头的薄壁管通过管接头容易地制造和连接薄管。 解决方案:波纹螺旋型接头结构1通过将插座式接头2a和薄壁管4a,4b彼此拧紧而构成。 插座式管接头2a在端部内表面上具有整体厚度的波形螺旋形状的锥形内螺纹3a,3b,具有锥形外螺纹5a,5b的薄壁管4a,4b具有波形螺旋形状 在整个厚度从右端和左端侧安装到管端外表面上,外螺纹5a,5b和内螺纹3a,3b彼此啮合,薄壁管4a,4b连接到每个 其他通过插座式管接头2a。 通过这种波纹螺旋式管接头1,薄壁管4a,4b和插座式管接头2a可以通过相对旋转的紧固扭矩容易地彼此接合。 由于整个插座式管接头2a重量轻,所以可以提高加工性,可以降低制造成本。