WASHBASIN ARRANGEMENT

Description

TECHNICAL FIELD

[0001] The present invention relates to a washbasin according to the preamble of claim 1. STATE OF THE ART

[0002] Wash basin systems with appropriate drains for the water have become known from the state of the art.

[0003] For example, DE 10 2008 044 637 discloses a washbasin that can be connected to a drainpipe. For this purpose, the washbasin has a chamber into which the water flows. The drainpipe is then connected to the chamber.

[0004] DE 10 2008 044 637 has two significant disadvantages. Firstly, the shape of the washbasin with the chamber is very complex to manufacture. Various undercuts significantly increase the manufacturing effort, especially when manufacturing the washbasin from ceramic. Secondly, the required installation space is comparatively large. This is particularly due to the arrangement of the drain pipe in the shape of a pipe bend.

[0005] DE 20 2008 008 557 U1 discloses another washbasin which has a connecting piece that connects to a drain section of the washbasin and essentially protrudes to the rear.

[0006] Furthermore, washbasins with overflow elements are known from the prior art. For example, EP 1 754 838 discloses a drain arrangement for a washbasin with an overflow element that adjoins the back of the washbasin. Such overflow elements are typically arranged behind a false wall and are very difficult to remove in the installed position. Washbasin arrangements with concealed overflows are also known from documents US2011 / 185494A1, EP0202308B1, AU5274079A, and US 2020 / 217054A1. DESCRIPTION OF THE INVENTION

[0007] Based on this prior art, the invention is based on the object of providing a washbasin assembly that overcomes the disadvantages of the prior art. In particular, one object of the present invention is to provide a washbasin assembly with a drain element that is easier to maintain.

[0008] This and other objects are achieved by the subject matter of claim 1. Accordingly, a washstand arrangement comprises, inter alia, at least one washstand with a water basin, a cavity, and a drain passage extending from the water basin into the cavity, and a drain element arranged at least partially in the cavity for conducting water away from the drain passage and for feeding the water into a drain line. The drain element has a drain channel accessible via a drain opening and having a check valve. The check valve comprises a valve seat and a closure member. The valve seat and the closure member are located at least partially, in particular completely, in said cavity and / or in the drain passage.

[0009] The arrangement of the closure element and valve seat in the cavity or in the drain passage has the advantage that the shut-off valve is very easily accessible through the drain passage for cleaning or maintenance work.

[0010] Particularly preferably, the valve seat is located in said cavity. The closure member, in a closed position, also lies in said cavity and, in an open position, protrudes from the cavity into the drain passage.

[0011] Preferably, the valve seat is located at a short distance of a few centimeters, in particular a maximum of 5 to 10 centimeters, from the access opening into the drain passage as seen from the water basin.

[0012] Preferably, a seal is arranged between the valve seat and the closure member.

[0013] Furthermore, the valve seat is arranged at an angle to the central axis of the drain passage or to the flow direction, the angular inclination being such that a lower edge, seen in the flow direction of the water, lies in front of an upper edge which, in the installed position, lies above the lower edge.

[0014] The angular arrangement has the advantage that solids such as hair that reach the valve seat can be easily rinsed away with water.

[0015] Preferably, the valve seat is located inside the drain channel. Alternatively, the valve seat surrounds the drain opening laterally.

[0016] Preferably, the closure member is a valve flap that can be pivoted about a rotational axis extending along a central axis, with the rotational axis preferably located above the valve seat in the installed position. As a result, the rotational axis is only in the water during a blockage, but not during normal flow, which greatly reduces its susceptibility to calcification.

[0017] Preferably, the valve flap can be moved from a closed position to an open position via the aforementioned pivoting movement toward the drain passage. When water accumulates in the basin, the valve flap is pressed against the valve seat by the water pressure and must be moved against the water pressure when moving from the closed position to the open position.

[0018] Preferably, the rotation axis is mounted in at least one bearing point provided by a wall structure surrounding the drainage channel. The bearing point is preferably an integral part of the wall structure, i.e., embedded in the wall structure.

[0019] The bearing point preferably has a first receptacle for a first bearing section of the rotation axis and a second receptacle for a second bearing section of the rotation axis. The first bearing section is preferably arranged at the free end of the rotation axis, and the first receptacle is an indentation in the wall structure. The second bearing section is preferably provided by a section of the rotation axis opposite the free end, wherein the second receptacle is provided by an opening in the wall structure. A sealing element is preferably arranged in the region of the opening and the second bearing section.

[0020] The valve flap preferably has a receiving opening, wherein the rotational axis can be inserted into this receiving opening and can be connected to the valve flap in a rotationally fixed manner in the receiving opening. The rotational axis preferably has at least one comb section that engages in a groove section in the receiving opening. This engagement creates the rotationally fixed connection.

[0021] Preferably, the rotation axis has an actuating section which is located outside the drain channel, wherein the actuating section has an opening which is offset from the central axis of the rotation axis and into which one end of an actuating rod can be inserted.

[0022] Preferably, the actuating portion is opposite the above-mentioned free end providing the first bearing portion.

[0023] Preferably, the drain element has a receiving structure for receiving a bearing element. The bearing element has a guide section in which an actuating rod for actuating the closure member is mounted.

[0024] Preferably, the bearing element can be inserted into the receiving structure and locked into the receiving structure.

[0025] Preferably, the closure element is movable into a flow-through position, wherein in the flow-through position, the closure element engages with a locking connection to the drain element. In the flow-through position, the closure element is spaced from the valve seat and exposes the drain channel. This has the advantage that the drain element can be used in washbasin arrangements where no accumulation is provided. In this case, the closure element can be deactivated very easily by moving it into the flow-through position. If the drain element is used without an accumulation function, the bearing element and the actuating rod can be omitted.

[0026] Preferably, the closure member is movable from an open position, in which the closure member is spaced from the valve seat and releases the discharge channel, into a closed position, in which the closure member lies on the valve seat and blocks the discharge channel.

[0027] Preferably, starting from the open position, the closure member can be moved into the flow position opposite to the movement into the closed position.

[0028] Preferably, in the closed position, parts of the closure member rest against a stop. This allows the force acting on the closure member to be limited. The stop is preferably part of the rotation axis or the actuating section. Preferably, the drain element has a wall structure that extends across the cross-section of the drain passage, wherein said drain opening is arranged in the wall structure. If present, the overflow inlet opening is also arranged in said wall structure.

[0029] Preferably, a bearing wall protrudes from the wall structure, wherein the bearing wall protrudes into a partial region of the cavity adjoining the drainage passage, wherein the bearing wall delimits an interior space, and wherein the closure member is located at least partially in the interior space.

[0030] Preferably, the drainage element lies substantially entirely within the cavity.

[0031] Optional features for embodiments with an overflow channel are described below. Preferably, the drainage element further comprises an overflow channel with an overflow edge, wherein, viewed from the water basin, the overflow channel is accessible via an overflow inlet opening, and wherein the overflow inlet opening and the drainage opening are arranged laterally offset from one another.

[0032] The water flowing through the drain passage thus encounters the drain opening and the overflow inlet opening. The separate arrangement has the advantage that the two functions, "drain" and "overflow," are located on different channels and are thus separated from each other. During operation, it can also happen that the drain opening and / or the drain channel become obstructed or even blocked by hair and other objects. The separation from the drain channel ensures that if the drain channel becomes blocked, the water from the basin can be safely drained away via the overflow channel.

[0033] The drain opening and the overflow opening are spaced apart. The overflow opening and the drain opening are two openings arranged differently and separately from each other.

[0034] When the check valve is closed, the water rises in the basin and flows through the overflow inlet into the overflow channel. The water then rises in the basin and the overflow channel. The overflow edge defines the maximum storage height in the basin. When the maximum storage height is reached, the water then flows over the overflow edge. The height of the overflow edge defines the maximum storage height.

[0035] The lower edge of the drain opening should preferably be lower than the lower edge of the overflow inlet opening when installed. This ensures that water can always drain from the basin via the drain channel when the drain channel is open.

[0036] Preferably, the overflow inlet opening and / or the drain opening extend substantially at least over the entire clear height of the drain passage. This allows the cross-section of the respective opening to be maximized.

[0037] Preferably, the overflow channel and the discharge channel extend after the overflow inlet opening or the discharge opening as separate channels and, viewed in the direction of flow, only merge into one another at a mouth point after the overflow edge.

[0038] Preferably, the overflow channel and the drain channel continue after the outlet point as a common channel to a drain outlet. A drain pipe, for example, can be connected to the drain outlet.

[0039] Preferably, the outlet point of the overflow channel and the drain channel is located in the said cavity of the washbasin.

[0040] Preferably, the overflow channel extends from the overflow inlet opening with a first channel section, wherein the first channel section is followed by a rising section which leads to the overflow edge, wherein the rising section is followed after the overflow edge by a falling section which preferably runs parallel to the rising section, wherein the falling section opens into the discharge channel.

[0041] Preferably, the first channel section extends rearward in the direction of the drainage passage when viewed in the installed position. The rising section and the falling section extend upwards and downwards, respectively, essentially vertically or at a slight angle to the vertical.

[0042] In one design variant, the outlet of the fall section into the discharge channel is a direct outlet. This means that the fall section merges directly into the discharge channel. In an alternative design variant, the outlet is an indirect outlet. Here, the fall section is followed by another channel section, which then flows into the discharge channel.

[0043] Preferably, the rising section and the falling section are separated from each other by a partition wall, the upper end of the partition wall providing said overflow edge.

[0044] Preferably, the partition wall has a curved cross-section when viewed from above toward the overflow edge, with the partition wall having at least one convexly rounded section and / or at least one concavely rounded section. The curved design offers the advantage that the overflow channel can be arranged in the most space-saving manner possible.

[0045] Preferably, the junction point of the overflow channel and the drain channel is located between the overflow inlet and the drain opening, especially when viewed through the drain passage. The junction point is located behind the drain passage in the installed position.

[0046] Preferably, the drainage channel has a deflection section downstream of the drainage opening, as seen in the direction of water flow, which deflects the drainage channel toward the overflow channel. The deflection section can be located directly adjacent to the drainage opening or at a distance from the drainage opening.

[0047] Preferably, as mentioned, the drainage element has a wall structure which extends over the cross section of the drainage passage, wherein said overflow inlet opening and said drainage opening are arranged in the wall structure.

[0048] Preferably, the drain channel and the overflow channel are connected to the rear of the wall structure.

[0049] Further preferred and therefore optional features of the washbasin arrangement are described below: The washbasin preferably has a rear wall with which the washbasin, in the installed position, can be brought into contact with a building-side connection structure, wherein the cavity is open in the region of a rear wall of the washbasin. The drain element with the check valve and the overflow channel with the overflow edge is preferably located substantially in said cavity. The arrangement of the drain element with the check valve and, if applicable, with the overflow channel with the overflow edge in the cavity has the advantage of being able to create a very compact washbasin arrangement. This is particularly true compared to arrangements in which the check valve unit or an overflow unit is located behind a false wall. In addition, ease of maintenance is increased.

[0050] Preferably, said wall structure extends across the cross-section of the drain passage and closes the cross-section accordingly, so that water can only flow out of the drain passage through the drain opening and the overflow inlet opening. The drain opening and the overflow inlet opening are located at least within the clear width of the drain passage.

[0051] In another variant, the overflow channel and the overflow edge are essentially located in the said cavity.

[0052] Preferably, the overflow channel extends upwards in the cavity when installed. Preferably, the overflow channel is completely enclosed within the cavity.

[0053] Preferably, the drainage passage from the water basin is arranged on a side wall of the water basin and, when viewed in the installed position, extends essentially rearwardly from the water basin. Preferably, the drainage passage has a slight gradient of a maximum of 20° to the horizontal.

[0054] Preferably, the check valve is located in the cavity and / or in the drain passage.

[0055] Preferably, the water basin is defined by an upper edge that is horizontal when installed. This edge defines a reference plane. The overflow edge is positioned at a distance of 3 to 6 centimeters from the reference plane, perpendicular to the reference plane.

[0056] Preferably, the entire drainage element lies substantially entirely within the cavity. In particular, the drainage element does not penetrate a plane defined by said rear wall. Furthermore, the drainage element does not protrude downward from the cavity. If the drainage element has a drainage nozzle, this can be arranged such that it is the only element of the drainage element that protrudes from the cavity. The drainage nozzle can protrude rearward and / or downward from the cavity. However, apart from the drainage nozzle, all other elements are preferably located inside the cavity.

[0057] Preferably, the washbasin further comprises a base wall, wherein the base wall is open downwards in the region of the cavity in the installed position, and wherein the drain element does not protrude downwards beyond a plane defined by the base wall. If the drain element has a drain nozzle, this can, as already mentioned, be arranged such that it is the only element of the drain element that protrudes from the cavity and, depending on its design, penetrates the plane defined by the base wall.

[0058] Preferably, the overflow channel, when viewed in the installed position, extends exclusively above the said plane spanned by the floor wall.

[0059] Preferably, the cavity is bounded at the top by a wall portion of the washbasin. The wall portion has an outer surface. The overflow edge is preferably located at most 3 to 6 centimeters from the outer surface. Preferably, the wall portion has a through-opening for the passage of a supply line to a water outlet fitting and / or for the passage of a shut-off valve actuating rod.

[0060] The cavity adjoins the drainage passage. In a preferred embodiment, the cavity has a first spatial section and a second spatial section. The first spatial section lies between the drainage passage and the second spatial section. The bearing wall described herein preferably extends from the first spatial section into the second spatial section. The overflow edge is preferably located in the second spatial section. The second spatial section extends upwards relative to the first spatial section when viewed in the installed position.

[0061] The surface of the said wall area extends essentially in the said reference plane.

[0062] Preferably, the overflow channel and the drain channel open into each other and continue as a common channel to a drain nozzle, the opening point of the overflow channel and the drain channel being in the said cavity.

[0063] Particularly preferably, the drain outlet is arranged such that it does not penetrate a plane defined by the rear wall. In this variant, the drain outlet is either located entirely within the cavity or protrudes downwards from the cavity.

[0064] Preferably, the drain nozzle is the only element of the drain element which protrudes from the cavity, wherein apart from the drain nozzle the drain element lies entirely within the cavity.

[0065] The drain connection is used for connection to a sewer line. The drain connection is preferably located in the cavity.

[0066] Preferably, the drain opening is located centrally in the wall structure as seen from the drain passage and with a lower edge at the level of or below a lower wall of the drain passage.

[0067] Preferably, the overflow inlet opening is located laterally next to the drain opening and has a lower edge at the level of or below a lower wall of the drain passage.

[0068] Preferably, the wall structure is shaped in such a way that the water to be drained does not accumulate in front of the wall structure, but is always fed to the drain opening.

[0069] Preferably, the overflow channel is laterally surrounded by a wall, wherein the wall extends upwards over the wall structure and wherein a partition wall with the overflow edge extends transversely through the interior space delimited by the wall.

[0070] Preferably, the wall of the overflow channel extends upwards away from the wall structure.

[0071] Preferably, the overflow channel is closed at the top with a cover, with the inside of the cover being at a distance from the overflow edge.

[0072] The lid has the advantage that the wall can be mechanically shortened if necessary, and the overflow channel can then be closed with the lid. This allows the drain element to be easily adapted to various types of washbasins.

[0073] In a preferred embodiment, two overflow inlets and two overflow channels are provided. The said outlet opening and outlet channel are located between the two overflow inlets and overflow channels.

[0074] Preferably, a support wall protrudes from the wall structure. The support wall protrudes into the cavity of the washbasin. The support wall is designed on the outside to match the shape of the cavity. Preferably, the drain passage for accommodating the support wall is slightly larger than in the section immediately adjacent to the water basin.

[0075] The bearing wall is designed as a circumferential bearing wall and also serves to accommodate a circumferential sealing element. The sealing element is arranged to interact with the walls of the cavity and / or with the rear wall.

[0076] Preferably, the one sealing element is a sealing element formed separately from the drain element. Alternatively, the at least one sealing element is integrally formed on the insert element.

[0077] Preferably, the drain element can be connected to the washbasin via a material-to-material adhesive connection and / or a mechanical connection. The mechanical connection is preferably a screw and dowel connection and / or a clamp connection between the drain element and the cavity.

[0078] Further embodiments are specified in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Preferred embodiments of the invention are described below with reference to the drawings, which are for illustrative purposes only and are not to be construed as limiting. In the drawings: Fig. 1 is a perspective top view of a washbasin arrangement according to a preferred embodiment of the present invention; Fig. 2 is a rear view of the washbasin arrangement according to Figure 1 ; Fig. 3 a perspective rear view of the washbasin arrangement according to Figure 1 ; Fig. 4 an exploded view of the rear view according to Figure 1 ; Fig. 5 a perspective view of a washbasin arrangement according to Figure 1 arranged drain element according to a first variant; Fig. 6 a perspective view of a in the washbasin arrangement according to Figure 1 arranged drain element according to a second variant; Fig. 7 a sectional view through a drain channel of the washbasin arrangement according to Figure 1; Fig. 8 a sectional view through an overflow channel of the washbasin arrangement according to Figure 1 ; Fig. 9 a front view of a washbasin arrangement according to Figure 1 arranged drainage element; Fig.10 a sectional view along the section line XX in the Figure 9 ; Fig. 11 a rear view of the drain element with an actuating rod; Fig. 12 another rear view of the drain element; Fig. 13 another sectional view of the drain element; Fig. 14 a front view of the drain element, with the closure member in a flow-through position; Fig. 15 a rear view of the drain element according to Figure 14 ; Fig. 16 a sectional view of the drain element according to Figure 14 with section through the closure element; Fig. 17 a further sectional view of the drain element according to Figure 14 ; Fig. 18 a front view of the drain element, with the closure member in an open position; Fig. 19 a sectional view of the drain element according to Figure 18with a section through the closure member; Fig. 20 a front view of the drain element, with the closure member in a closed position; Fig. 21 a sectional view of the drain element according to Figure 20 with a section through the closure member; and Fig. 22 a further sectional view of the drain element according to Figure 14 . DESCRIPTION OF PREFERRED EMBODIMENTS

[0080] In the Figure 1 becomes a washbasin arrangement 1. The washbasin arrangement 1 comprises a washbasin 2 and a drain element 6.

[0081] The washbasin 2 has a water basin 3, a cavity 4 and a drain passage 5. In the Figure 1The cavity 4 can only be partially seen behind the drainage passage. The drainage element 6 for draining water is arranged in the cavity 4. The water can be fed to a drain line (not shown) via the drainage element 6. The drainage passage extends from the water basin 3 into the cavity 4, such that water from the water basin can be led into the cavity 4 or to the drainage element 6.

[0082] At the top, the water basin 3 is delimited by an upper edge 15. In the installed position, the upper edge 15 lies in the horizontal H. In the installed position means in the installed and ready-to-use state. In the rear area, the washbasin also has a wall area 17. The wall area 17 delimits the cavity 4 at the top. The wall area has an outer surface 18 at the top, which preferably also lies in the aforementioned reference plane B. In the embodiment shown, the wall area 17 has a through-opening 19. The through-opening 19 opens into the cavity 4 and serves to pass through a supply line to a water outlet fitting and / or to pass through a shut-off valve actuating rod.

[0083] In the Figure 2The washbasin arrangement 1 is shown from the rear. The washbasin 2 has a rear wall 7. The rear wall 7 allows the washbasin 2 to be brought into contact with a building-side connection structure in the installed position. Furthermore, the washbasin 2 has a base wall 16.

[0084] As reported by the Figures 2 to 4 As can be seen, the cavity 4 is accessible via the rear wall 7 and the bottom wall 16. The cavity 4 is open in the area of ​​the rear wall 7. The cavity 4 is also open in the area of ​​the bottom wall 16.

[0085] With respect to the cavity, the drainage element 6 is arranged essentially entirely within said cavity 4. This means that the drainage element 6 does not protrude beyond a plane defined by the rear wall 7 or beyond a plane defined by the bottom wall 16 from the cavity 4. This is except for a drain pipe or drain connection 21, through which the water is fed to a wastewater pipe. Here, the drain connection 21 protrudes downward from the cavity 4. Furthermore, the drainage element 6 extends partially into the drainage passage 5.

[0086] The drain element 2 has in the embodiment shown, as shown in the Figures 2 to 6shown, a wall structure 8 which, when connected to the washbasin 2, extends completely over the cross section of the drain passage 5. In the embodiment shown, the drain element 2 has two fastening openings 31 with which the drain element 2 can be connected to the washbasin.

[0087] The drain element 2 further comprises a drain channel 14 and an overflow channel 10. The drain channel 14 and the overflow channel 10 are integrally formed on the wall structure 8. The drain element 2 is preferably formed from plastic.

[0088] A drainage opening 12 is arranged in the wall structure 8. The drainage opening 12 is followed by the drainage channel 14. The figures show an embodiment in which a check valve 13 is located in front of the drainage channel 14 and closes the drainage opening 12. The check valve 13 here has the shape of a valve flap and is identified by the Figures 11 to 22explained in more detail below. The check valve 13 can, however, be designed differently and, for example, be located in the drain channel 14. Regardless of the design or position of the check valve 13, the check valve 13 serves to tightly close the drain opening 12 or the drain channel 14. When the check valve 13 is closed, the water is retained in the water basin 3. When the check valve 13 is open, the water flows into the drain channel 14.

[0089] The overflow channel 10 serves to drain water from the water basin 3 when a certain water level is reached when the check valve is closed. For this purpose, the overflow channel 10 has an overflow edge 11. The position of the overflow edge 11 defines the maximum water level in the water basin 3. In the embodiment shown, the overflow channel 10 and the overflow edge 11 are also located in the cavity 4. An overflow inlet opening 11 is arranged in the wall structure 8, which is then connected to the overflow channel 10. The overflow channel 10 then extends upwards to the overflow edge 11 and then downwards again from the overflow edge 11.

[0090] In the embodiment shown, the overflow inlet opening 11 and the drain opening 12 are arranged as separate openings. Viewed from the water basin 3 or the drain passage 5, the overflow channel 10 is accessible via the overflow inlet opening 9, and the drain channel 14 is accessible via a drain opening 12. The overflow inlet opening 9 and the drain opening 12 are arranged laterally offset from one another. This means that the overflow inlet opening 9 and the drain opening 12 are spaced apart from one another.

[0091] The overflow channel 10 and the drain channel 14 merge at a junction 36 and, after the junction 36, continue as a common channel 20 to a drain connection 21. The junction of the overflow channel 10 and the drain channel 14 is also located in the aforementioned cavity 4. A drain pipe can then be connected to the drain connection 21. The junction 36 is located behind the overflow edge 11 and behind the check valve 13, as seen in the flow direction from the overflow inlet opening 9 and the drain opening 12.

[0092] The drain opening 12 and overflow inlet opening 11 are positioned such that, when installed, they lie within the clear width of the drain passage 5. This means that water can flow unhindered from the drain passage 5 to the drain opening 12 and overflow inlet opening 11. As viewed from the drain passage 5, the drain opening 12 is located centrally in the wall structure 8 and has a lower edge 22 at the level of or below a lower wall 23 of the drain passage 5. Furthermore, the overflow inlet opening 9 is located laterally next to the drain opening 12 and has a lower edge 24 at the level of or below a lower wall 23 of the drain passage 5.

[0093] The overflow channel 10 is, as shown in the Figures 5 and 6As clearly shown, it is laterally surrounded by a wall 25. The wall 25 extends upwards above the wall structure 8. A partition 26 extends transversely through the interior space 27 delimited by the wall 25. The partition 26 has the aforementioned overflow edge 11. The overflow channel 10 is closed at the top with a cover 28. The inner side 29 of the cover is at a distance from the overflow edge 11.

[0094] A bearing wall 30 protrudes from the wall structure 8. The bearing wall 30 protrudes into the cavity 4 of the washbasin. The bearing wall 30 is formed on the outside to match the shape of a first spatial section of the cavity 4. The first spatial section adjoins the drain passage 5. Preferably, the first spatial section for receiving the bearing wall 30 has a slightly larger extent than the extent of the drain passage 5, which directly adjoins the water basin 3. The remaining part of the drain element 6 lies in a second spatial section of the cavity, wherein the second spatial section adjoins the first spatial section.

[0095] The bearing wall 30 is designed as a circumferential bearing wall and further serves to accommodate a likewise circumferential sealing element 32. The sealing element 32 is arranged to interact with the walls of the cavity 4.

[0096] In the Figure 7A cross-sectional view of the drainage channel is shown. Figure 8 shows a sectional view through the overflow channel. The overflow edge is located, as shown in the Figure 8 shown, at a distance of 3 to 6 centimeters from the reference plane B. The distance is designated by the reference symbol A.

[0097] The Figures 9 and 10 then show a front view of the drain element 6 and a sectional view. From the sectional view along the section line XX in Figure 9It can be seen that the overflow channel 10 extends from the overflow inlet opening 9 with a first channel section 37. The first channel section 37 is followed by a rising section 38. The rising section 38 leads to the overflow edge 11. After the overflow edge 11, the rising section 38 is followed by a falling section 39. The falling section 39 then flows into the discharge channel 14 at the outlet point 36. The rising section 38 and the falling section 39 run parallel to one another here and, as already mentioned, are separated from one another by the partition wall 26.

[0098] Of the Figure 10 It is further apparent that in the embodiment shown, the drainage channel 12 has a deflection section 40 which deflects the drainage channel in the direction of the overflow channel 20. This deflection section 40 allows the outlet point 36 to be placed behind a closed wall section of the wall structure 8.

[0099] Based on the Figures 11 to 22Further features of the shut-off valve 13 according to a particularly preferred embodiment are described in more detail below.

[0100] The check valve 13 comprises a valve seat 41 and a closure member 42. The valve seat 41 and the closure member 42 are located at least partially, in particular completely, in said cavity 4 and / or in the drain passage 5.

[0101] The valve seat 41 is inclined at an angle α to the central axis of the drain passage or to the flow direction. The angular inclination is such that a lower edge 22, as seen in the direction of water flow, lies in front of an upper edge 43, which, in the installed position, lies above the lower edge 22. The angle α is preferably in a range of 5° to 45°.

[0102] The closure member 42 can be actuated by an actuating rod 53. The actuating rod 53 is movably mounted on a bearing element 55. The bearing element 55 is connectable to the drain element 6. The drain element 6 has a receiving structure 54 into which the bearing element 55 can be inserted. The receiving structure 54 is designed here as a longitudinal guide 58, and the bearing element 55 has a guide section 59 with which the bearing element 55 can be inserted into the longitudinal guide 58. Between the longitudinal guide 58 and the guide section 59, a locking connection 62 is provided, with which the bearing element 55 can be locked to the drain element.

[0103] The actuating rod 53 engages, as shown in the Figure 12 shown, into an opening 52 on an actuating section 51 of the rotary axis 44. Upon movement of the actuating rod, the rotary axis 44 can be moved accordingly from the open position to the closed position.

[0104] In the embodiment shown, the closure member 42 is a valve flap. The valve flap is pivotable about a rotational axis 44 extending along a central axis. The valve flap is connectable to the rotational axis 44. Viewed in the installed position, the rotational axis 44 is located above the valve seat 41.

[0105] In the Figure 13 a sectional view through the central axis of the rotation axis 44 is shown.

[0106] The rotational axis 44 is mounted on the drain element at two bearing points 45. One of the bearing points 45 has a receptacle 46 for a first bearing section 47 of the rotational axis 44. The first bearing section 47 is designed as a free end and projects into the receptacle 46. A second of the bearing points 45 has a second receptacle 48 for a second bearing section 49 of the rotational axis 44. A sealing point 60 is also arranged in the area of ​​the second receptacle 48.

[0107] Between the two bearing sections 47 and 49, the rotational axis 44 extends through a receiving opening 50 on the valve flap. The rotational axis 44 is located in the receiving opening 50 in a rotationally fixed manner. In the embodiment shown, the rotational axis 44 has several combs that engage in grooves on the receiving opening 50.

[0108] At its end, the rotational axis 44 has an actuating section 51. The actuating section 51 is located outside the drain channel 14. The actuating section 51 has the above-mentioned opening 52, into which one end of an actuating rod 53 engages. The opening 52 is laterally offset from the central axis of the rotational axis 44.

[0109] The Figures 11 to 22 The check valve shown can essentially assume three positions, namely a flow position according to the Figures 14 to 17 , a public display according to the Figures 18 and 19 and a closure position according to the Figures 20 to 22 .

[0110] In the flow position, the closure member 42 is firmly locked to the drain element 6. The closure member 42 is preferably moved into the flow position when no damming in the water basin 3 is desired. If no damming function is desired, the elements provided for actuating the closure member 42 can be omitted. For example, an arrangement of the bearing element and the actuating rod can be omitted. To move into the flow position, the closure member 42 is moved from the open position against the direction of movement into the closed position. This means that, viewed in the installed position, the closure member is then preferably higher in the flow position than in the closed position.

[0111] In the closed position, the closure member engages a locking connection 56 to the drain element. The locking connection 56 is in the Figure 17shown. The locking connection 56 is located on the rear side of the drain element 6. Here, the actuating section 51 engages a wall area of ​​the drain element 6.

[0112] When the storage function is desired, the closure member 42 can be moved back and forth between the open position and the closed position. For actuation, the actuating rod 53, together with the bearing element 55, can be connected to the drain element 6. In the closed position, the closure member 42 rests against a stop 57. This stop 57 is provided by a part of the actuating section 51 and a wall area of ​​the drain element 6 and is in the Figure 22 visible. The stop ensures that excessive closing forces on the locking device are prevented.

[0113] As mentioned, the drainage element 6 has a bearing wall 30 which protrudes from the wall structure 8. The bearing wall 30 projects into a partial area of ​​the cavity 4 adjoining the drainage passage 5. The bearing wall 30 delimits an interior space 61 in which the closure member 42 is at least partially located. In the closed position, the closure member 42 lies essentially completely in the interior space 61. In the open position and the flow position, the closure member 42 projects out of the interior space 61 in the direction of the drainage passage 5 and extends into the drainage passage 5. This is determined by the Figures 16 and 19 visible. LIST OF REFERENCE SYMBOLS 1 Washbasin arrangement 36 Mouth 2 washbasin 37 first canal section 3 water basin 38 climbing section 4 cavity 39 Case section 5 Drain passage 40 Deflection section 6 Drain element 41 valve seat 7 back wall 42 closure organ 8 Wall structure 43 upper edge 9 Overflow inlet opening 44 axis of rotation 10 overflow channel 45 storage location 11 overflow edge 46 first recording 12 Drain opening 47 first camp section 13 shut-off valve 48 second recording 14 drainage channel 49 second camp section 15 edge 50 Receiving opening 16 floor wall 51 Operating section 17 Wall area 52 opening 18 outer surface 53 operating rod 19 passage opening 54 Recording structure 20 common channel 55 bearing element 21 drain nozzle 56 Snap connection 22 lower edge 57 stop 23 lower wall 58 Longitudinal guide 24 lower edge 59 Guide section 25 wall 60 Sealing point 26 partition 61 Interior 27 Interior 62 Snap connection 28 Lid A Distance 29 inside B Reference plane 30 bearing wall H horizontal 31 Mounting holes F Flow direction 32 Sealing element α angle 33 side wall

Claims

1. Washstand arrangement (1) comprising a washstand (2) having a water basin (3) with a drain opening (12), a cavity (4) and a drain passage (5) extending from the drain opening of the water basin (3) into the cavity (4), and a drain element (6) arranged at least partially in the cavity (4) for guiding water away from the drain passage (5) and for feeding the water into a drain line, wherein the drain element (6) comprises a drain channel (14) accessible via the drain opening (12) with a shut-off valve (13), which shut-off valve (13) comprises a valve seat (41) and a closure member (42), and wherein the valve seat (41) and the closure member (42) are located at least partially, in particular completely, in said cavity (4) and / or in the drain passage (5), characterized in that the valve seat (41) is arranged inclined at an angle (α) to the central axis of the drain passage or to the flow direction, the angular inclination being such that a lower edge (22), as viewed in the flow direction of the water, lies in front of an upper edge (43) lying above the lower edge (22) in the installation position.

2. Washstand arrangement (1) according to claim 1, characterized in that the valve seat (41) is located in the drain channel (14) or laterally surrounds the drain opening (12).

3. Washstand arrangement according to one of the preceding claims, characterized in that the closure member (42) is a valve flap which is pivotable about an axis of rotation (44) extending along a central axis, the axis of rotation (44) preferably lying above the valve seat (41) in the installed position.

4. Washstand arrangement according to claim 3, characterized in that the axis of rotation (44) is mounted in at least one bearing point (45) which is provided by a wall structure (8) surrounding the drain channel (14).

5. Washstand arrangement according to claim 4, characterized in that, in the case of at least two bearing points, one bearing point of the at least two bearing points (45) comprises a first receptacle (46) for a first bearing section (47) of the axis of rotation (44) and another bearing point of the at least two bearing points (45) comprises a second receptacle (48) for a second bearing section (49) of the axis of rotation (44).

6. Washstand arrangement according to one of the preceding claims 3 to 5, characterized in that the valve flap comprises a receiving opening (50), the axis of rotation (44) being insertable into this receiving opening (50) and being connectable to the valve flap in the receiving opening (50) in a rotationally fixed manner; and / or in that the axis of rotation (44) comprises an actuation section (51) which lies outside the drain channel (14), the actuation section (51) having an opening (52) which is offset from the central axis of rotation (44) and into which one end of an actuation rod (53) can be inserted.

7. Washstand arrangement according to one of the preceding claims, further comprising a bearing element (55), wherein the drain element (6) comprises a receiving structure (54) for receiving the bearing element (55), wherein the bearing element (55) comprises a guide section in which an actuation rod (53) for actuating the closure member (42) is mounted.

8. Washstand arrangement according to claim 7, characterized in that the bearing element (55) can be inserted into the receiving structure (54) and can be latched in the receiving structure (54).

9. Washstand arrangement according to one of the preceding claims, characterized in that the closure member (42) can be moved into a flow-through position, in which flow-through position the closure member (42) engages with a snap-fit connection (56) to the drain element (6); and / or in that the closure member (42) can be moved from an open position, in which the closure member (42) lies at a distance from the valve seat (41) and releases the drain channel (14), into a closed position, in which the closure member (42) lies on the valve seat (41) and blocks the drain channel (14).

10. Washstand arrangement according to claim 9, characterized in that, starting from the open position, the closure member (42) is movable into the flow-through position in a direction opposite to the movement into the closed position; and / or in that, in the closed position, parts of the closure member (42) are in contact with a stop (57).

11. Washstand arrangement according to one of the preceding claims, characterized in that the drain element further comprises an overflow channel (10) with an overflow edge (11), the overflow channel (10) being accessible via an overflow inlet opening (9) when viewed from the water basin (3), the overflow inlet opening (9) and the drain opening (12) being arranged next to one another laterally offset from one another.

12. Washstand arrangement (1) according to one of the preceding claims, characterized in that the drain element (6) comprises a wall structure (8) which extends over the cross-section of the drain passage (5), said drain opening (12) being arranged in the wall structure (8).

13. Washstand arrangement (1) according to claim 12, characterized in that a bearing wall (30) projects from the wall structure (8), wherein the bearing wall (30) projects into a partial region of the cavity (4) adjoining the drain passage (5), and wherein the bearing wall (30) delimits an interior space (61), and wherein the closure member (42) lies at least partially in the interior space (61).

14. Washstand arrangement (1) according to one of the preceding claims, characterized in that the drain element (6) lies essentially completely in the cavity (4).