| 摘要 |
The invention relates to arrangements for fixing a pipe element (12) to a well ring (10), having a shank portion (18) with cavities (24) in which lock elements (26) are mounted in such a manner that they can be forced in against the cavities (24) by the pipe (12) so that the lock elements (26) permit insertion or pushing on of the end portion of the pipe past the lock elements but prevents removal of the pipe element. The shank portion and the cavities can be made for external pushing on of the pipe or internal insertion of the same. <IMAGE> |
