| 摘要 |
1. Device for connecting together two tubing components, a first component comprising an interior tube (1), an exterior tube (4) coaxial with the interior tube and a male coupling (2) which has the general shape of a crown, this male coupling being placed at the upper extremity of the said first component and between the exterior and interior tubes ; a second component comprising two tubes, an interior one (1) and an exterior one (4), and a female coupling (3) which has the general shape of a crown, is placed at the lower extremity of the said second component between the exterior and interior tubes and is designed to cooperate with the male coupling of the first component, this female coupling having an overall concavity turned towards the base and including, on its interior and exterior edges, parts forming a small angle with the axis of the tubing, and being crimped onto the lower edge of the exterior tube (4), characterized in that the said female coupling (3) is welded onto the interior tube (1) and exhibits sufficient flexibility to absorb the expansion of the interior tube. |
