| 摘要 |
The present invention relates to an arrangement in a drain trap, especially in a floor drain (1). This type of floor drain comprises an interior (4) surrounded by a frame (2) and having a flange (5) and bottom (6). Water flows into the floor drain from a drainage aperture (3) opposite the bot¬ tom and from side inlets (7) in the shell, and the water ex¬ its through an outlet (8). A drain trap (9) is formed in the interior by leading into it from the direction of the drainage aperture a no-return pipe (11) that extends to the bottom cup (10). The end of this no-return pipe on the drainage aperture side comprises a drainage flange (12) that settles substantially tightly on the inner surface (13) in the interior of the shell. The no-return pipe then comprises at least on part of the outer edge (14) of the drainage flange (12) a support collar (22) that extends toward the bottom and is arranged to interact with a support edge (23) extending from the shell- toward the interior. |
