Drain arrangement for a washstand

Abstract

A drain arrangement for a washstand, comprising a connection unit having a connecting branch for connection to a drain branch of a washstand, an overflow unit connecting to the connection unit and having a valve and an overflow pipe, which bridges the valve, and a siphon unit connecting to the overflow unit and having a siphon element. The connecting branch, seen in the installation position, runs in a first direction, which is oriented at an angle inclined at less than 30° tilting downwards to a mounting plane running in the vertical of the washstand. The overflow unit lies offset to the side of the connecting branch in such a manner that the overflow pipe extends upwards to the side adjacent to the connecting branch and the siphon unit lies beneath the overflow unit.

Claims

1. An arrangement comprising a drain arrangement and a washstand, wherein said drain arrangement comprises: a connection unit comprising a connecting branch for connection to a drainage branch of a washstand; an overflow unit adjoining the connection unit and comprising a valve and an overflow pipe that bridges the valve; and a siphon unit adjoining the overflow unit and comprising a siphon element, wherein the connecting branch, when viewed in the installation position, runs in a first direction that is oriented angularly inclined, at an angle, downward toward an assembly plane of the washstand, the assembly plane runs in a vertical direction, wherein the overflow unit lies laterally offset from the connecting branch such that the overflow pipe extends upward alongside the connecting branch, wherein the siphon unit lies beneath the overflow unit, wherein the washstand has a rear wall, such that the washstand is fittable to a connecting structure defining the assembly plane, wherein in a region adjoining a top side of the washstand said rear wall extends over the entire width of the washstand, and wherein the washstand has a drainage branch that protrudes from said rear wall and that runs collinearly to said connecting branch, wherein, in the installation position, the connecting branch penetrates the assembly plane, and wherein the overflow unit and the siphon unit are arranged, with respect to the assembly plane, opposite the washstand.

2. The arrangement as claimed in claim 1, wherein, in the installation position, the connecting branch penetrates the assembly plane, wherein the overflow unit and the siphon unit lie behind the assembly plane, and wherein the washstand lies in front of the assembly plane.

3. The arrangement as claimed in claim 1, wherein the arrangement further has a wall structure that with a front side, defines the assembly plane, wherein the washstand is arranged in front of the wall structure, wherein the connecting branch penetrates the wall structure, and wherein the overflow unit and the siphon unit lie behind the wall structure.

4. The arrangement as claimed in claim 1, wherein the drainage branch, with respect to a center plane that in the installation position, when viewed from the front, extends centrally in the vertical through the washstand and that runs at right angles to the assembly plane, is arranged laterally offset from the center plane.

5. The arrangement as claimed in claim 1, wherein in the installation position and when viewed from the side, the overflow unit and the siphon unit are arranged such that these lie between two reference planes lying parallel to the assembly plane, wherein the reference planes have a distance between each other that corresponds to maximally three times the length of the connecting branch; and/or wherein the reference planes have a distance between each other that lies between 7 and 15 centimeters.

6. The arrangement as claimed in claim 5, wherein the reference planes lie at a distance from the assembly plane, and wherein the distance between the assembly plane and the first reference plane lying closer to the assembly plane is smaller than the distance between the two reference planes.

7. The arrangement as claimed in claim 5, wherein the connecting branch, when viewed from the washstand, penetrates the first reference plane and, between the first reference plane and the second reference plane, opens out into the overflow unit.

8. The arrangement as claimed in claim 5, wherein the reference planes lie at a distance from the assembly plane, wherein the distance between the assembly plane and the first reference plane lying closer to the assembly plane is smaller than the distance between the two reference planes, and wherein the connecting branch, when viewed from the washstand, penetrates the first reference plane and, between the first reference plane and the second reference plane, opens out into the overflow unit.

9. The arrangement as claimed in claim 1, wherein, in the installation position, the overflow pipe extends upward over the height of the connecting branch.

10. The arrangement as claimed in claim 1, wherein, in the installation position, the valve and the siphon unit lie beneath the connecting branch or the drainage branch, respectively.

11. The arrangement as claimed in claim 1, wherein the connecting branch comprises a first diversion section that diverts the direction of flow from the first direction downward into the vertical, wherein the connecting branch comprises a second diversion section that is arranged following the first diversion section and that diverts the direction of flow again, and wherein the orientation of the center axis of the second diversion section, after diversion has taken place, is parallel to and at a distance from the assembly plane and angularly inclined downward with respect to the horizontal.

12. The arrangement as claimed in claim 11, wherein the second diversion section is adjoined by the overflow unit.

13. The arrangement as claimed in claim 1, wherein the connecting branch has at least one flexible section.

14. The arrangement as claimed in claim 13, wherein the center axes of water-carrying regions in the overflow unit and the siphon unit lie in a common plane that runs parallel to the assembly plane.

15. The arrangement as claimed in claim 1, wherein the overflow unit and the siphon unit each have a maintenance opening closed off with a cap, and wherein the two maintenance openings are accessible from the same access direction.

16. The arrangement as claimed in claim 15, wherein said access direction runs at right angles to the assembly plane; and/or wherein the two maintenance openings, when viewed in the vertical, lie one above the other, and/or wherein the maintenance openings closed off with the cap lie, in the installation position, beneath the washstand.

17. The arrangement as claimed in claim 1, wherein, through a maximal lateral extent of the siphon unit in the horizontal direction, in a projection onto the assembly plane, there runs a reference plane on each of two sides of the siphon unit, these reference planes run at right angles to the assembly plane in the vertical, and wherein the siphon unit and the overflow unit are arranged in the region between the two reference planes.

18. The arrangement as claimed in claim 13, wherein at least one of the diversion sections is of flexible configuration.

19. The arrangement as claimed in claim 1, wherein the washstand, in the region of its rear wall, comprises a water tank element that the drainage branch protrudes from.

20. The arrangement as claimed in claim 19, wherein said water tank element is arranged in a cavity that extends from said rear wall into the washstand, wherein the cavity interrupts said rear wall.

21. The arrangement as claimed in claim 20, wherein the water tank element is configured separate from the washstand and can be appropriately connected thereto.

22. The arrangement as claimed in claim 19, wherein the water tank element is configured separate from the washstand and can be appropriately connected thereto.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Preferred embodiments of the invention are described below with reference to the drawings, which serve merely for illustrative purposes and should not be interpreted restrictively. In the drawings:

(2) FIG. 1 shows a front view of a washstand having a drain arrangement according to one embodiment of the present invention;

(3) FIG. 2 shows a rear view of FIG. 1;

(4) FIG. 3 shows a side view of FIG. 1;

(5) FIG. 4 shows a perspective view of FIG. 1 from the front, wherein the drain arrangement is represented separate from the washstand; and

(6) FIG. 5 shows a perspective view of FIG. 1 from the rear.

DESCRIPTION OF PREFERRED EMBODIMENTS

(7) In the figures, a drain arrangement 1 with a washstand 2 is shown. The drain arrangement 1 serves to carry away water out of the washstand 2.

(8) FIG. 1 shows a front view of the washstand 2 and of the drain arrangement 1. FIG. 2 shows a corresponding rear view.

(9) The drain arrangement 1 for the washstand 2 comprises a connection unit 3, an overflow unit 6 and a siphon unit 9. The connection unit 3 is connected to the washstand 2 with a connecting branch 4. The connecting branch 4 serves for the connection to a drainage branch 5 of the washstand 2. Water is fed from a discharge opening 24 out of the washstand 2 to the drainage branch.

(10) Adjoining the connection unit 3 is the overflow unit 6. The overflow unit 6 comprises a valve 7 and an overflow pipe 8 which bridges the valve 7 accordingly. The valve 7 can assume two positions, namely an open position, in which the water can flow through the valve 7, and a closed position, in which the water, when viewed in the direction of flow from the washstand 2, is retained, so that a user can fill the washstand 2 with water. The overflow pipe 8 is arranged such that the valve 7 is appropriately bridged. Hence, when the valve is closed, an emergency drainage can be provided in case the water should rise above the height of the overflow pipe 8. In the shown embodiment, the overflow pipe 8 is of U-shaped configuration. The overflow pipe 8 projects away from a pipe section 20 in which the valve 7 is arranged. The pipe section 20 comprises a first branch-off point 21 and a second branch-off point 22, both of which branch-off points 21, 22 open out into the overflow pipe 8. Between the two branch-off points 21, 22 is arranged the valve 7. The valve 7 is actuated via a drive element 23.

(11) The overflow unit 8 is adjoined, as mentioned, by the siphon unit 9. The siphon unit 9 comprises a siphon element 10.

(12) The water which is fed through the drainage branch 5 of the washstand 2 to the drain arrangement 1 flows firstly through the connection unit 3 and then flows into the overflow unit 6, from which it is ultimately fed to the siphon unit 9.

(13) The rear view of FIG. 2 shows that the overflow unit 6 lies laterally offset from the connecting branch 4, to be precise such that the overflow pipe 8 extends upward alongside the connecting branch 4. That is to say that the overflow pipe 8 extends upward next to the connecting branch 4, counter to the plumb line direction. The space or the spatial conditions, respectively, can hence be utilized in a neat and optimized manner. The siphon unit 9 likewise lies laterally offset from the connecting branch 4 and beneath the overflow unit 6.

(14) FIG. 3 shows a side view of the drain arrangement 1 with the washstand 2. When viewed in the installation position, the connecting branch 4 extends in a first direction R1. The first direction R1 stands at an angle α of less than 30° degrees to an assembly plane ME lying in the vertical V. The assembly plane ME is defined by the rear wall 18 of the washstand or by the connecting structure to which the washstand is to be fitted. The connecting structure is, for instance, a wall. The inclination of the angle α is here such that it is downward with respect to the horizontal H.

(15) The overflow unit 6 and the siphon unit 9 are arranged in such a way relative to one another that they lie between two reference planes RE1 and RE2 lying parallel to the assembly plane ME. In FIG. 3, the reference planes RE1, RE2 are marked accordingly. The reference planes RE1, RE2 extend in the vertical V and lie at a distance A inbetween each other. The overflow unit 6 and the siphon unit 9 here lie between the two reference planes RE1, RE2 such that the reference planes RE1, RE2 are not penetrated by the corresponding units 6, 9. The reference planes RE1, RE2 thus form boundary planes. The distance A between the two reference planes RE1, RE2 corresponds to maximally three times the length L of the connecting branch 4 and/or lies within a range from 7 to 15 cm.

(16) The reference plane RE1, which lies closer to the assembly plane ME here, likewise lies at a distance from the assembly plane ME. The distance bears the reference numeral C. As a result of this distance, space is created for the feed-through of further elements, such as, for instance, a freshwater conduit (not shown) which is to be fitted to the washstand, or else appropriate corresponding tiled wall or another wall structure. The wall and the wall structure preferably comprise an access opening (not represented), through which the overflow unit 6 and the siphon unit 9 are accessible for maintenance works. The distance C between the first reference plane RE1 and the assembly plane ME is smaller than the distance A between the two reference planes RE1 and RE2. Preferably, the distance C lies between 10 and 60 millimeters.

(17) When viewed from the washstand 2, the connecting branch 4 penetrates the first reference plane RE1 and then, in the region between the first reference plane RE1 and the second reference plane RE2, opens out into the overflow unit 6.

(18) When viewed in the installation position, the overflow pipe 8 extends upward above the height of the connecting branch 4. That is to say that the connecting branch 4 lies beneath the upper end of the overflow pipe 8.

(19) Equally, in the installation position, the valve 7 and the siphon unit 9 lie beneath the connecting branch 4 and the drainage branch 5.

(20) In FIGS. 4 and 5, perspective views of the drain arrangement 1 with the washstand 2 are shown. The connecting branch 4 runs along the first direction R1 through to a first diversion section 11. At the first diversion section 11, the direction of flow F is diverted from the first direction R1 downward into the vertical V. The connecting branch 4 further comprises a second diversion section 12, which, when viewed in the direction of flow F, is arranged downstream of the first diversion section 11. With the second diversion section 10, the direction of flow F is diverted again. The second diversion section 11 is then adjoined by the overflow unit 6. The orientation of the center axis M12 of the second diversion section 12, after diversion has taken place, is parallel to and at a distance from the assembly plane ME and slightly angularly inclined downward with respect to the horizontal H. This type of diversion has the advantage that the water can be optimally diverted to the height of the valve 7. In addition, the second diversion section 12 has the advantage that the connecting branch 4, in the region of the first direction R1 and through to the end of the second diversion section 12, is arranged alongside the overflow pipe 8, so that the overflow pipe 8 can extend next to and past the connecting branch 4.

(21) The connecting branch 4 comprises at least one flexible section 13. Particularly preferably, at least one of the diversion sections 11, 12 is of flexible configuration. As a result of this flexible section 13, assembly tolerances are able to be compensated.

(22) From all figures it becomes apparent that the center axes of the water-carrying regions in the overflow unit 6 and the siphon unit 9 lie substantially in a common plane E. The plane E lies between the two reference planes RE1, RE2 here, and extends substantially parallel to the assembly plane ME or to the reference planes RE1, RE2, respectively. As a result, the compactness with respect to the extent transversely to the assembly plane ME, thus between the distance A between the two reference planes RE1, RE2, is optimized accordingly. In addition, no complex diversion of the water in the direction of the vertical is realized.

(23) Both the overflow unit 6 and the siphon unit 9 each have a maintenance opening 16, 17, which is closed off with a cap 14, 15. The maintenance opening 16 in the overflow unit 6 is arranged here such that the valve 7 becomes appropriately accessible when the cap 14 is removed. Therein, the maintenance opening 17 of the siphon unit 9 is configured such that the siphon element 10 can be removed from the siphon unit 9 upon removal of the cap 15. As a result, the seal 7 and a siphon element 10 are able to be maintained accordingly. Both the valve 7 and the siphon element 10 are not marked in the figures and are merely represented symbolically with dashed lines.

(24) The two maintenance openings 16, 17 are accessible from the same access direction Z. The access direction Z runs substantially at right angles to the assembly plane ME and is marked accordingly in FIG. 3. Preferably, the two maintenance openings 16, 17 lie substantially one above the other in the vertical V. Furthermore, from FIG. 1 it can be seen that the two maintenance openings 16, 17 closed off with the cap 14, 15 lie, in the installation position, beneath the washstand. That is to say that the two caps 14, 15 and the corresponding maintenance openings 16, 17 are comparatively easily accessible.

(25) The maximal lateral extent of the drain arrangement 1 is now explained in greater detail with reference to FIG. 2. The maximal lateral extent of the siphon unit 9 in the horizontal H and in a projection onto the assembly plane ME is shown in FIG. 2. The assembly plane ME runs in the direction of the page here. Through the maximal lateral extent runs one reference plane BE1, BE2 each. The two reference planes BE1, BE2 stand at a distance B from each other, which is defined by the corresponding extent of the siphon unit 9. Here, the two reference planes BE1, BE2 run at right angles to the assembly plane ME in the vertical V. The siphon unit 9 and the overflow unit 6 are arranged here in the region between the two reference planes BE. The reference plane BE2 is correspondingly penetrated by the connecting branch 4, so that this, in the region of the penetration point, then opens out into the overflow unit 6.

(26) From FIG. 5, it is further apparent that the washstand 2, in the region of its rear wall, comprises a water tank element 19, from which the drainage branch 5 protrudes. The drainage branch 5 runs angularly inclined to the rear wall 18 such that it runs substantially collinearly to said connecting branch 4 of the drainage unit. In addition, the drainage branch 5 protrudes from said rear wall 18. The connecting branch 4 stands in close connection to the drainage branch 5. The water tank element 19 is configured separate from the washstand 2 and can be appropriately connected thereto.

(27) Viewed in the installation position, the drainage branch 5 is arranged laterally offset from the washstand. That is to say that in the installation position, when viewed from the front, the drainage branch 5, with respect to a center plane NE which extends centrally in the vertical V through the washstand 2 and which runs at right angles to the assembly plane ME, is arranged laterally offset. The center plane NE is marked accordingly in FIG. 2. It can be clearly seen here that the drainage branch 5 lies distanced from this center plane NE. This distanced arrangement has the advantage that the residual elements of the drainage unit 1 can be arranged substantially in the middle of the washstand 2.

REFERENCE SYMBOL LIST

(28) TABLE-US-00001 1 drain arrangement 2 washstand 3 connection unit 4 connecting branch 5 drainage branch 6 overflow unit 7 valve 8 overflow pipe 9 siphon unit 10 siphon element 11 first diversion section 12 second diversion section 13 flexible section 14 cap 15 cap 16 maintenance opening 17 maintenance opening 18 rear wall 19 water tank element 20 pipe section 21 branch-off point 22 branch-off point 23 drive element 24 discharge opening BE1 first reference plane BE2 second reference plane A distance B distance C distance R1 first direction E plane RE1 first reference plane RE2 second reference plane V vertical H horizontal ME assembly plane NE center plane L length α angle M12 center axis Z access direction