| 摘要 |
A floor drain is provided with a cupshaped main part (I) to receive waste water and having a drain trap. The pipe connection piece (11), to which a discharge pipe (211-219) is to be connected, is formed as a straight tube portion, preferably as a straight bell. The longitudinal axis (13) of said bell forms, with a horizontal plane, an angle alpha , being substantially greater than 0 DEG and substantially less than 90 DEG , preferably equal to 45 DEG . Furthermore said bell is shaped in such a way, that it with its higher located portion extends to a level being located above the water surface (33) of said drain trap. The end of said straight tube portion (11), which is located inside main part (I), is shaped with such a profile (71, 73), that the connected waste conduit (211-219) can be placed thereon or inserted into the pipe connection piece so long, that highest located part of the connected conduit extends up to the level of the upper portion of the main part (I) of the floor drain. The water trap of the floor drain is preferably formed by a projection (11b) on said bell (11), having a horizontal edge (73), and by a drain trap casing (75). According to the invention, as is conventional, a strainer is arranged, covering the opening of the floor drain. In the stainer a vacuum valve may be arranged. According to the invention there is also provided a ring of a new type for clamping of a floor carpet to be connected to the upper part of said floor drain. The floor drain can be provided with a central means (21), located at the upper surface, around which a cutting tool can be turned around to cut out an appropriate circular opening in the floor carpet. |
