Drain, in particular shower drain
A drain for a wet room, in particular for a shower, includes a drain housing at which an outlet for connecting a drain pipe. In order for a drain of this type to offer a higher drainage capacity in the case of a given drain pipe of standard diameter, the drain housing has a pump for conveying water towards the outlet. The pump is provided with a hydraulic drive. The wet room, in particular a shower, includes a water supply line and a drain of the above-mentioned type.
1. A drain for a wet room, the drain comprising a drain housing at which an outlet for connecting a drain pipe is provided, wherein the drain housing is provided with a pump for conveying water towards the outlet, wherein the pump is provided with a hydraulic drive, wherein the pump is formed from a pump impeller mounted in the drain housing, and wherein the hydraulic drive comprises a drive wheel which can be loaded with water and is coupled to the pump impeller via a magnetic coupling.
2. The drain according to claim 1 , wherein the pump impeller is formed in the manner of the impeller of a centrifugal pump.
3. The drain according to claim 1 , wherein the drive wheel or the pump impeller is provided with embedded magnets.
4. The drain according to claim 1 , wherein the drive wheel or the pump impeller is made of magnetised plastics material.
5. The drain according to claim 1 , wherein the pump impeller comprises a bell-shaped wheel hub.
6. The drain according to claim 5 , wherein the drain housing base comprises a bell-shaped elevation on which the wheel hub is rotatably mounted.
7. The drain according to claim 1 , wherein the drain housing comprises a cup-like housing part into which an immersion pipe is inserted to form an odor trap.
8. The drain according to claim 1 , wherein the pump impeller is conical.
9. The drain according to claim 7 , wherein the pump impeller and the immersion pipe are formed as a single-piece constructional unit.
10. The drain according to claim 1 , wherein the drain housing comprises, between an inlet opening and the outlet, a partition wall defining an overflow edge, an opening which is flush with the outlet and sealed by a removable plug being formed in the partition wall.
11. The drain according to claim 10 , wherein the plug is provided with a handle element which projects into the cup-like housing part, the immersion pipe simultaneously functioning as a stop for the handle element.
12. A wet room, comprising a water supply line and a drain, wherein the drain includes a drain according to claim 1 , the pump being integrated in the water supply line.
13. The drain according to claim 2 , wherein the pump impeller is a radial wheel or a semi-axial wheel, preferably as a radial wheel or semi-axial wheel of a centrifugal pump.