| 摘要 |
The invention relates to an arrangement for establishing a leaktight connection for a thin-walled plastic vessel for connection of a hose or a pipe or members performing functions or carrying out measurements. The arrangement can be mounted in its entirety from the outside of the vessel. The arrangement comprises on the one hand a first surface (10; 110; 210; 310) designed in such a manner that, during mounting, this surface, when pressed and/or rotated relative to the plastic vessel, pushes aside the vessel wall (55) around a mounting hole located in the vessel, and on the other hand a second surface (20; 120; 220) adapted so as, after mounting, to establish sealing contact against the inside of the vessel wall, which has sprung back, and also a securing device (15, 16; 115, 116, 117; 215) which is adapted so as, from the outside of the vessel, to fix the arrangement in relation to the vessel and bring about pressure between the vessel wall and said second, sealing surface. Also indicated are a tool for manual or automatic mounting of the connection nipples according to the above and a plastic vessel comprising the arrangement according to the above. The invention finds application in workshop machinery, office machinery and vehicles, especially with regard to blow-moulded or rotationally moulded plastic tanks with a material thickness in the range 0.5 - 4.0 mm. |
