drainage device

By arranging the outflow pipe and connecting pipe laterally in the drainage device and extending the overflow unit and actuator element upward, the problem of large structural space occupation in the prior art is solved, a compact drainage device design is achieved, and the space requirement under sanitary ware is reduced.

CN113738879BActive Publication Date: 2025-12-26GEBERIT HLDG AG SWITZERLAND
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Patent Information

Application Number
CN202110511603.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-05-13
Filing Date
2021-05-11
Publication Date
2025-12-26
Estimated Expiration
2041-05-11

AI Technical Summary

Technical Problem

The existing drainage system occupies a large amount of structural space in the downward direction, affecting the layout of the base cabinet.

Method used

A drainage device was designed in which the outflow pipe and the connecting pipe are arranged side by side in the lateral direction, the overflow unit extends upward, and the actuator element also extends in the lateral direction, thereby reducing the structural height.

Benefits of technology

The compact design of the drainage system reduces the space required under sanitary ware and improves space utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A drain device for connection to a sanitary fixture comprises a drain valve housing having a first channel section with an inlet opening, a second channel section with an outlet opening and having a valve seat positioned between the inlet opening and the outlet opening, a valve body movable from a closed position to an open position from the valve seat, an actuation unit through which the valve body is movable, and a flow-out pipe into which the second channel section opens through the outlet opening thereof, wherein a first central axis extends centrally through the first channel section, and a flow-out pipe central axis extends centrally through the flow-out pipe, wherein the flow-out pipe central axis intersects the first central axis, or wherein the flow-out pipe central axis is at a distance from the first central axis, wherein the distance is at most equivalent to half the diameter of the outlet opening, and wherein the drain device further comprises an overflow unit having a first connection pipe, an overflow pipe and a second connection pipe.
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Description

TECHNICAL FIELD

[0001] The invention relates to a drain according to claim 1 for sanitary ware, in particular for a washbasin or a sink. BACKGROUND

[0002] Drains for washbasins or sinks are known from the prior art.

[0003] For example, EP 2 045 403 discloses a drain with an overflow unit. The overflow unit exits from the drain valve housing through a connection pipe and extends upwards opposite the vertical direction. In the downward direction, the drain valve housing has a pipe connector, which is followed by a siphon element and a drain line.

[0004] Although EP 2 045 403 has many advantages, it is disadvantageous that the construction space covers a relatively large area in the downward direction, which is disadvantageous for the volume of the base cabinet to be arranged below the washbasin.

[0005] Various requirements for drains are derived from practical experience. For example, a key requirement is the compactness of the drain, so that the drain only occupies a small installation space. SUMMARY

[0006] Starting from this prior art, it is the object of the invention to propose a drain which overcomes the disadvantages of the prior art. In particular, it is the object of the invention to propose a drain which is designed as compact as possible, in particular from the sanitary ware downwards.

[0007] The drain according to claim 1 achieves this object. Thus, the drain for connection to sanitary ware comprises a drain valve housing having a first channel section with an inlet opening, a second channel section with an outlet opening positioned laterally with respect to the drain valve housing, and having a valve seat positioned between the inlet opening and the outlet opening, a valve body movable from a closed position to an open position from the valve seat, an actuation unit through which the valve body can be moved, and a flow-out pipe following the outlet opening. A first central axis extends centrally through the first channel section, and a flow-out pipe central axis extends centrally through the flow-out pipe. In one variant, the flow-out pipe central axis intersects the first central axis. In another variant, the flow-out pipe central axis is at a distance from the first central axis, wherein the distance is at most equivalent to half the diameter of the outlet opening.

[0008] The drain device further comprises an overflow unit, wherein the overflow unit has a first connecting pipe, an overflow pipe and a second connecting pipe. The first connecting pipe is led out of the valve seat above the first channel section from the upper mouth opening. Furthermore, the first connecting pipe opens into the overflow pipe, which extends upwards essentially opposite the plumb line direction in the installed position. The overflow pipe then opens into the second connecting pipe below the first connecting pipe, which opens into the first channel section and / or the second channel section below the valve seat via the lower mouth opening.

[0009] Both the outlet opening and the mouth opening are arranged laterally at the outflow valve housing with respect to the outflow valve housing such that, when viewed in the installed position, the outflow pipe and the connecting pipe extend essentially next to one another. The outflow pipe and the connecting pipe extend and are positioned laterally next to one another.

[0010] The lateral arrangement of the mouth opening at the outflow valve housing and the lateral arrangement of the outlet opening at the outflow valve housing, together with the associated arrangement of the outflow pipe, results in the advantage that the required construction height of the drain device can be minimized. In particular, the construction space downwards from the sanitary fixture can be minimized, whereby the space below the sanitary fixture and the drain device can be better used by a base cabinet or some other construction.

[0011] The expression "laterally with respect to the outflow valve housing" is to be understood as meaning that the mouth opening and the outlet opening are positioned in a side wall of the outflow valve housing.

[0012] The first central axis of the first channel section is essentially vertical or essentially in the plumb line direction, as seen in the installed position.

[0013] The second channel section has a central axis, which extends centrally through the second channel section. The first central axis is at an angle of at least 90° to the second central axis or to the outflow pipe central axis. In particular, the angle is 90° to 95°. Thus, in the installed position, the second central axis or the outflow pipe central axis is horizontal or slightly inclined downwards with respect to the horizontal.

[0014] Preferably, the outflow pipe central axis is oriented essentially parallel to the second central axis, in particular is co-linear with respect to the second central axis.

[0015] Preferably, the valve seat is positioned in the first channel section. The valve seat extends around the first central axis.

[0016] Preferably, the mouth opening is provided by one mouth channel section each, which extends inclined at an angle to the outflow pipe central axis, in particular at an angle of 45° to 135°, in particular preferably at an angle of 90°.

[0017] In other words, each mouth opening section extends along a mouth center axis. The mouth center axis is inclined at an angle with respect to the tube center axis, in particular at an angle of 45° to 135°, particularly preferably at an angle of 90°.

[0018] Preferably, the mouth opening is bounded in the front by a side edge. The side edge of the mouth opening lies in a common plane which is parallel to or at an angle of at most 45° to a center plane which extends through the first center axis and the tube center axis.

[0019] Preferably, the two connection tubes extend laterally side by side and spaced apart from the outflow tube, wherein, in the installed position, the connection tube center axes are parallel to the outflow tube center axis as viewed from above.

[0020] Viewed from the side, the connection tube center axes can be parallel to the outflow tube center axis or inclined at an angle thereto.

[0021] Preferably, the connection tubes each extend into the mouth opening with a tube section.

[0022] Preferably, a seal is arranged between the tube section and the mouth opening.

[0023] Preferably, the seal has a section which is exposed in the mouth opening, wherein the section is in the form of an inclined surface. In this way, a flow-optimized contour can be provided.

[0024] Preferably, a turning section is provided between the mouth opening and the respective connection tube, wherein the turning section is part of the mouth opening and / or part of the connection tube. By means of the turning section, a turning is achieved so that the two connection tubes can extend laterally side by side with the outflow tube.

[0025] Preferably, in the installed position, the connection tube center axes are inclined at an angle with respect to a horizontal plane, wherein the connection tubes are lowered towards the mouth opening. This has the advantage that, in the event of an emergency overflow, the lower connection tube is formed to be inclined downwards, so that a good outflow can be provided.

[0026] Preferably, the second connection tube and / or the lower mouth opening has a shoulder before entering the first channel section, which shoulder is oriented downwards in the direction of gravity. By means of the shoulder, it is achieved that the connection tube can be positioned slightly higher in the installed position. Furthermore, a flow in the shoulder leads to a slightly higher flow rate being achieved, which is a great advantage for the outflow.

[0027] The two connection tube center axes are preferably parallel to one another.

[0028] Preferably, the two connection tubes are formed integrally with one another.

[0029] Preferably, the overflow pipe can be connected to the connection pipe via a plug-in connection. The plug-in connection can also have a seal.

[0030] The overflow unit is positioned in a structure space which extends laterally and in an upward direction with respect to the outflow pipe. In the installed position, the structure space is bounded downward by a lower plane. The lower plane extends at right angles to a central plane which is spanned by the first central axis and the second central axis. The lower plane also extends through a lower lateral surface line which forms the intersection of a vertical plane which extends through the outflow pipe central axis and extends vertically with the outer lateral side of the pipe. The advantage of this arrangement is that a compact structure can be provided with respect to the structural height below the sanitary fixture.

[0031] The expression "structure space" is to be understood as meaning the spatial region in which the overflow unit is arranged.

[0032] Preferably, the outflow pipe extends along a straight line without a bend. Preferably, a siphon element is attached to the outflow pipe after the second channel section.

[0033] Preferably, the length of the outflow pipe is greater than 300 mm.

[0034] Furthermore, preferably, the actuation unit has an actuation lever which acts on the valve body and an actuator element for actuating the actuation lever, wherein the actuator element extends at least in a section laterally alongside the outflow pipe.

[0035] The lateral arrangement of the actuator element has the advantage that a compact structure can be provided. That is, the height of the drain can be minimized, which reduces the space required below the sanitary fixture.

[0036] A further advantage of this lateral arrangement is that the water which flows out via the drain valve housing is diverted only between the first channel section and the second channel section and then, in one variant, directly into the outflow pipe and, in another variant, experiences only a small diversion as a result of the offset of the first central axis with respect to the outflow pipe central axis.

[0037] The expression "laterally alongside the outflow pipe" is to be understood as meaning that, in the installed position, the actuator element is positioned alongside and extends alongside the outflow pipe.

[0038] Preferably, the actuator element is positioned on one side of the outflow pipe and the two connection pipes and the overflow pipe are positioned on the other side of the outflow pipe.

[0039] Preferably, the mouth-shaped opening is positioned opposite the actuator element with respect to a central plane which is spanned by the first central axis and the second central axis.

[0040] Preferably, the actuator element is mounted in a bearing point which is positioned on the outside of the drain valve housing, wherein the bearing point has a bearing opening through which the actuator element passes. Here, the mounting enables the actuator element to be moved relative to the fixed bearing device.

[0041] The bearing point is preferably formed integrally on the drain valve housing. However, the bearing point can also be arranged on a separate element which can be connected to the drain valve housing.

[0042] The bearing point is positioned laterally on the drain valve housing.

[0043] Preferably, in the mounted position, the bearing point or the bearing opening is positioned at a height which is central with respect to the outflow pipe.

[0044] Preferably, the actuator element is positioned at a distance laterally from the side surface of the outflow pipe, wherein the distance is less than the outer diameter of the outflow pipe, or wherein the distance is less than half the outer diameter of the outflow pipe.

[0045] The small distance to the outflow pipe has the advantage that the required construction space of the drain valve device can be minimized in terms of its width.

[0046] Preferably, the actuating lever has a lever axis about which the actuating lever can be pivoted, and wherein the lever axis extends at right angles to the first central axis and to the second central axis.

[0047] It is particularly preferred that, as viewed in the mounted position, the lever axis is positioned below the central axis of the outflow pipe.

[0048] Preferably, the lever axis is mounted in a bearing point in the side wall of the outflow valve housing, wherein the lever axis protrudes from the outflow valve housing, and wherein the lever axis, in particular at the end side, has a lever protrusion with a hinge point on which the actuator element acts.

[0049] Preferably, the actuating lever has a lever arm which acts on the valve body. The lever arm protrudes away from the lever axis and is positioned in the first channel section and / or in the second channel section.

[0050] The position of the actuator element can be specified via a construction space. Preferably, the actuator element is positioned in a construction space which extends laterally with respect to the outflow pipe.

[0051] The expression "construction space" is to be understood as meaning a spatial region in which the actuator element is arranged.

[0052] Preferably, the lever protrusion is positioned in a construction space which extends laterally with respect to the outflow pipe.

[0053] Preferably, the structural space is laterally bounded by the outer side of the outflow pipe and by a vertical plane. The vertical plane extends vertically in the mounted position and is spaced apart from the side surface of the outflow pipe by a distance of at most the outer diameter of the outflow pipe or at most half the outer diameter of the outflow pipe. The vertical plane is parallel to the first central axis and parallel to the second central axis or parallel to the outflow pipe central axis.

[0054] Preferably, the structural space can be bounded downward by a lower plane. The lower plane extends at right angles to the vertical plane and extends through a lower side surface line which forms the intersection of a central plane with the outer side of the pipe, the central plane extending through the outflow pipe central axis and extending vertically.

[0055] The structural space can be bounded upward by an upper plane. The upper plane extends at right angles to the vertical plane and extends through an upper side surface line which forms the intersection of a central plane with the outer side of the pipe, the central plane extending through the outflow pipe central axis.

[0056] Preferably, the actuator element is an actuating link or cable.

[0057] Further embodiments are indicated in the dependent claims. BRIEF DESCRIPTION OF DRAWINGS

[0058] The preferred embodiments of the present application are described below based on the drawings, which are used for illustration only and should not be interpreted as being restrictive. In the drawings:

[0059] Figure 1 is a perspective view of a drain valve arrangement according to an embodiment of the present application;

[0060] Figure 2 shows a side view of a drain arrangement according to Figure 1 in a closed position;

[0061] Figure 3 shows a side view of a drain arrangement according to Figure 1 in an open position;

[0062] Figure 4 shows a front view of a drain arrangement according to Figure 1 ;

[0063] Figure 5 shows a side view of a drain arrangement according to Figure 1 in a closed position;

[0064] Figure 6 shows a side view of a drain arrangement according to Figure 1 in an open position;

[0065] Figure 7 shows a front view of a drain arrangement according to​Figure 1 exploded view of a drain device according to

[0066] Figure 8 a further exploded view of a drain device according to Figure 1

[0067] Figure 9 a further sectional view of a drain device according to Figure 1

[0068] Figure 10 a side view of a second embodiment with a further actuating element. DETAILED DESCRIPTION

[0069] Figures 1 to 10 various views of a preferred embodiment of a drain device according to the present application are shown. Figures 1 to 9 a first variant of this preferred embodiment is shown, and Figure 10 a variant of the preferred embodiment is shown.

[0070] The drain valve device 1 is for connection to a sanitary fixture 2. The sanitary fixture 2 is preferably a wash basin or a sink. The drain device 1 comprises a drain valve housing 3 having a first channel section 4 with an inlet opening 5, having a second channel section 6 with an outlet opening 7 and having a valve seat 8 positioned between the inlet opening 5 and the outlet opening 7. The drain valve device 1 further comprises a valve body 9 which is movable from a closed position to an open position from the valve seat 8 and back. The valve body 9 is moved from the closed position to the open position by an actuating unit 10. The drain valve device 1 further comprises a flow-out pipe 11 into which the second channel section 6 opens via the outlet opening 7. Via the flow-out pipe 11, water can be conducted away from the second channel section 6.

[0071] A first central axis M4 extends centrally through the first channel section 4. In the installed position, the first central axis M4 is essentially vertical, i.e. in the direction of the plumb line. A flow-out pipe central axis M11 extends centrally through the flow-out pipe 11. In the installed position, the flow-out pipe central axis M11 is essentially horizontal or inclined at an angle downwards relative to the horizontal, so that water can be conducted away from the drain valve housing 3 through the flow-out pipe. The second channel section 6 has a second central axis M6.

[0072] In the shown embodiment, the flow-out pipe central axis M11 intersects the first central axis M4. That is, the central axis M11 and the central axis M4 lie in a common plane, which can be referred to as central plane ME. However, the flow-out pipe central axis M11 can also be at a distance from the first central axis M4, wherein said distance is at most equivalent to half the diameter of the outlet opening 7.

[0073] ​​The drain device 1 further comprises an overflow unit 23. If the valve body 9 is in the closed position, an emergency overflow can be provided by means of the overflow unit 23. The overflow unit 23 has a first connecting pipe 24, an overflow pipe 25 and a second connecting pipe 26. The first connecting pipe 24 is led out of the first channel section 4 above the valve seat 8 from an upper mouth opening 27. The mouth opening 27 forms a hole through the side wall 19 of the drain valve housing 3. The first connecting pipe 24 opens into the overflow pipe 25, which extends upwards in the installed position essentially opposite the direction of the plumb line. An overflow edge is arranged inside the overflow pipe 25. The overflow pipe 25 then opens below the first connecting pipe 24 into the second connecting pipe 26. The second connecting pipe 26 opens into the first channel section 4 below the valve seat 8 via a lower mouth opening 28. The lower mouth opening 28 likewise forms a hole through the side wall 19.

[0074] The mouth openings 27, 28 open laterally into the outflow valve housing 3 with respect to the outflow valve housing 3. Nonetheless, the outflow pipe 11 opens laterally into the outflow valve housing 3 with respect to the outflow valve housing 3. This lateral opening has the advantage that the drain device can be formed very compactly in upward height into the downward direction.

[0075] In the embodiment shown, the mouth openings 27, 28 are each provided by a mouth channel section 29, 30. As is clear from the figures, the mouth channel sections 29, 30 extend laterally away from the outflow valve housing 3. The mouth channel sections 29, 30 are inclined at an angle to the outflow pipe centre axis M11. In the embodiment shown, this angle is a right angle. Other angles of 45° to 135° are also conceivable. Figure 8

[0076] The mouth openings 27, 28 are bounded in front by a side edge 37. This side edge 37 lies in a plane parallel to a centre plane ME extending through the first centre axis M4 and the pipe centre axis M11 or at an angle of at most 45° to this centre plane.

[0077] As can be seen from all the figures, the two connecting pipes 24, 26 extend laterally side by side with the outflow pipe 11, wherein, in the installed position, the connecting pipe centre axes M24, M26 are parallel to the outflow pipe centre axis M11, as can be seen from above. Figure 2 and Figure 3 The orientation of the two connecting pipes 24, 26 is shown. In the installed position, the connecting pipe centre axes M24, M26 are inclined at an angle to the horizontal plane HE, wherein the connecting pipes 24, 26 fall towards the mouth openings 27, 28. In other words, the connecting pipe centre axes M24, M26 are inclined at an angle to the outflow pipe centre axis M11.

[0078] ​Furthermore, between the mouth-shaped openings 27, 28 and the respective connecting pipes 24, 26, a turning section 33 is provided. In the shown embodiment, this turning section 33 is part of the connecting pipes 24, 26.

[0079] The connecting pipes 24, 26 extend into the mouth-shaped openings 27, 28 with pipe sections 31, respectively. Between the pipe sections 31 and the mouth-shaped openings 27, 28, a sealing 32 is arranged, respectively.

[0080] The overflow pipes 25 extend into the connecting pipes 24, 26 with pipe sections 35, respectively. Between the pipe sections 35 and the connecting pipes 24, 26, a sealing 36 is arranged, respectively.

[0081] Figure 7 and Figure 8 The sealings 32 and 36 are shown. The sealings 32, 36 are preferably formed integrally and are formed such that for each side the sealing action can be provided by one element, i.e. by one sealing.

[0082] The first connecting pipe 24 and the second connecting pipe 26 are preferably formed as an integral structure.

[0083] Figure 9 A cross-sectional view of the outflow valve housing 3 and the opening points of the two connecting pipes 24, 26 is shown in more detail.

[0084] The sealing 32 has a section 38 exposed in the mouth-shaped opening 27, 28, wherein this section 38 is in the form of an inclined surface. The advantage of this angled surface is that the flow resistance when transitioning from the connecting pipes 24, 26 can be reduced, which is advantageous for the overflow performance.

[0085] Furthermore, before entering the first channel section, the second connecting pipe 26 has a shoulder 34, which is oriented downwards in the direction of gravity. The advantage of the shoulder 34 is that the water flowing over the shoulder 34 in the direction of the drain valve housing 3 is accelerated in the area of the shoulder 34. Furthermore, due to the shoulder 34, the second connecting pipe 26 can be arranged higher in terms of its position.

[0086] The actuating unit 10 has an actuating lever 12 acting on the valve body 9 and an actuator element 13 for actuating this actuating lever 12. In the shown embodiment, the actuating lever 12 extends into the interior of the drain valve housing 3 from the exterior of the drain valve housing 3 through the side wall 19. The actuator element 13 is arranged outside the outflow pipe 11 and extends at least in a section laterally alongside the outflow pipe 11. The actuator element in Figures 1 to 9 in a variant is in the form of an actuating link and in Figure 10 in a variant is in the form of a cable pull.

[0087] The expression "in lateral alignment with the outflow pipe 11" is to be understood as meaning that, in the installed position, the actuator element 13 is positioned with its said portion in lateral alignment with the outflow pipe 11 and not below or above the pipe. The overflow unit 23 extends on the side opposite the actuator element 13, i.e. on the other side of the outflow pipe. This position of the actuator element 11 is explained in further detail below on the basis of the construction space.

[0088] As shown, the lateral arrangement of the overflow unit 23 and the actuator element 13, respectively, in alignment with the outflow pipe, has the advantage that a compact drain 1 can be provided. This is particularly advantageous in the case of advantageous pipe lines with regard to flow losses. In the embodiment shown, the drain 1 has only a single turn, in particular only a single turn in the transition from the first channel section 4 to the second channel section 6. Subsequently, the outflow pipe 11, here in the form of a straight line, extends directly from the second channel section 6. The advantage here is that the flow losses during the outflow of the water are low. Furthermore, the lateral arrangement of the overflow unit 23 and the actuator element 13 in alignment with the outflow pipe has the advantage that the drain valve device has a small construction height in the downward direction.

[0089] In the said section extending laterally relative to the outflow pipe 11, the actuator element 13 extends laterally at a distance A relative to the outflow pipe 11. This distance A is chosen to be as small as possible. In particular, the distance A is smaller than the outer diameter D of the outflow pipe 11 or smaller than half the outer diameter D of the outflow pipe 11.

[0090] In all embodiments, the actuator element 13 is mounted in a bearing point 14, which is positioned on the outside of the drain valve housing. The bearing point 14 is likewise positioned laterally relative to the outflow valve housing 3. Here, the bearing point 14 has a bearing opening 15 for the passage of the actuator element 13. If the actuator element 13 is an actuating link, the bearing point 14 is formed with a bearing opening 15 so that the link can be pivoted about a pivot axis S. If the actuator element is a cable pull, the bearing opening is for the passage of the cable. As shown in the figures, in one preferred embodiment of the drain valve device, two bearing openings can be arranged so that either an actuating link or a cable pull can be guided through the bearing opening.

[0091] In the installed position, the bearing point 14 or the bearing opening 15 is positioned at an essentially central height relative to the outflow pipe 11. That is to say, in the installed position, the bearing point 14 or the bearing opening 15 is essentially positioned at the height of the central axis M6 of the second channel section.

[0092] A preferred embodiment of the drain valve device according to the application will now be described on the basis of Figure 4To explain the structure space B in more detail, in which the actuator elements 13 and those of the actuating levers that are positioned outside the drain valve housing 3 are positioned. Structure space C for the overflow unit 23 will also be explained in more detail.

[0093] The structure space B is laterally delimited by a vertical plane VE. The vertical plane VE extends vertically in the installed position and extends parallel to the outflow pipe centre axis M11 and parallel to the first centre axis M4 and parallel to the second centre axis M6. The vertical plane is at a distance from the side surface of the outflow pipe 11. This distance is indicated by the reference A. The distance A at most corresponds to the outer diameter D of the outflow pipe 11.

[0094] The structure space B is downwardly delimited by a lower plane UE. The lower plane UE extends at right angles to the vertical plane VE. The lower plane UE also extends through a lower side surface line UM. The lower side surface line UM is the intersection line of a centre plane ME that extends through the outflow pipe centre axis M11 and vertically. The centre plane ME extends parallel to the vertical plane VE.

[0095] In variants in which the outflow pipe centre axis M11 intersects the first centre axis M4, the centre plane ME also extends through the first centre axis M4 and through the second centre axis M6. In other words, the centre plane ME is spanned by the outflow pipe centre axis M11, the first centre axis M4 and the second centre axis M6. In variants in which the outflow pipe centre axis M11 is at a distance from the first centre axis M4, the centre plane is spaced apart from and extends parallel to the first centre axis M4.

[0096] The structure space B is upwardly delimited by an upper plane OE. The upper plane OE extends at right angles to the vertical plane VE. The upper plane OE also extends through an upper side surface line OM. The upper side surface line OM is the intersection line of the centre plane ME as defined above.

[0097] As Figure 4 is shown, the structure space B extends laterally alongside the outflow pipe 11, wherein the structure space B spatially closely adjoins the outflow pipe 11.

[0098] As described, those elements of the actuating unit 10 that are positioned outside the drain valve housing 3 are positioned in the structure space B. Depending on the form of the actuator elements 13, the actuator elements 13 pass through the upper plane OE. In embodiments in which the actuator elements 13 are actuating links, the actuating links, as Figures 1 to 9As shown, the structural space B extends essentially the entire length of the outflow pipe 11 in or below the upper plane OE. The actuator element 13 passes through the structural space B in the end region of the outflow pipe 11 opposite the drain valve housing 3. In embodiments in which the actuator element 13 is in the form of a cable pull, the cable pull can pass through the upper plane OE at a more proximal point. In both variants, however, the actuator element 13 is positioned such that it does not pass through the lower plane UE and the vertical plane VE.

[0099] The structural space C in which the overflow unit 23 is positioned extends in the upward direction laterally with respect to the outflow pipe 11. In the installed position, the structural space C is bounded downward by the lower plane UE. The lower plane UE extends at right angles to the center plane ME, which is spanned by the first center axis M4 and the second center axis M6, and extends through the lower side surface line UM, which forms the intersection of the vertical plane VE, which extends through the outflow pipe center axis M11 and extends vertically, with the outer side of the pipe.

[0100] From the sectional view in Figure 5 and Figure 6 it can be clearly seen that the actuating lever 12 has a lever arm 22 that acts on the valve body 9. The actuating lever 12 is pivoted about the lever axis 17 by the actuator element 13 and in the process lifts the valve body 9 from the closed position as shown in Figure 5 to the open position as shown in Figure 6 .

[0101] The lever axis 17 is mounted in a bearing point 18 in the outflow valve housing 3 side wall 19, wherein the lever axis 17 protrudes from the outflow valve housing 3 and wherein the lever axis 17, in particular at the end side, has a lever protrusion 20 with a hinge point 21 on which the actuator element 13 acts. The lever protrusion 20 and the hinge point 21 are likewise positioned in the structural space B.

[0102] Reference sign list

[0103] 1 drain valve device

[0104] 2 sanitary ware

[0105] 3 drain valve housing

[0106] 4 first channel section

[0107] 5 inlet opening

[0108] 6 second channel section

[0109] 7 outlet opening

[0110] 8 valve seat

[0111] 9 valve body

[0112] 10 actuating unit

[0113] 11 outflow pipe

[0114] 12 actuating lever

[0115] 13 actuator element

[0116] 14 bearing point

[0117] 15 bearing opening

[0118] 16 side surface

[0119] 17 lever shaft

[0120] 18 bearing point

[0121] 19 side wall

[0122] 20 lever protrusion

[0123] 21 articulation point

[0124] 22 lever arm

[0125] 23 overflow unit

[0126] 24 first connecting pipe

[0127] 25 overflow pipe

[0128] 26 second connecting pipe

[0129] 27 upper mouth opening

[0130] 28 lower mouth opening

[0131] 29 mouth passage section

[0132] 30 mouth passage section

[0133] 31 pipe section

[0134] 32 seal

[0135] 33 turning section

[0136] 34 shoulder

[0137] 35 pipe section

[0138] 36 seal

[0139] 37 side edge

[0140] 38 section

[0141] A distance

[0142] B structure space

[0143] C structure space

[0144] M4 first passage section central axis

[0145] M6 second passage section central axis

[0146] M11 outflow pipe central axis

[0147] VE vertical plane

[0148] ME central plane

[0149] OE upper plane

[0150] UE lower plane

[0151] OM upper lateral surface line

[0152] UM lower lateral surface line

[0153] S pivot axis

Claims

1. A drain device (1) for connection to a sanitary fixture (2), comprising: a drain valve housing (3) having a first channel section (4) with an inlet opening (5), having a second channel section (6) which projects laterally from the drain valve housing (3) with an outlet opening (7), and having a valve seat (8) which is positioned between the inlet opening (5) and the outlet opening (7); a valve body (9) which is movable from a closed position to an open position from the valve seat (8); an actuating unit (10) by means of which the valve body (9) is movable; and a flow-out pipe (11) which follows on from the outlet opening (7); wherein a first central axis (M4) extends centrally through the first channel section (4), and a flow-out pipe central axis (M11) extends centrally through the flow-out pipe (11); wherein the flow-out pipe central axis (M11) intersects the first central axis (M4), or wherein the flow-out pipe central axis (M11) is at a distance from the first central axis (M4), wherein the distance is at most equivalent to half the diameter of the outlet opening (7); wherein the drain device (1) further comprises an overflow unit (23) having a first connecting pipe (24), an overflow pipe (25) and a second connecting pipe (26); wherein the first connecting pipe (24) is led out of the first channel section (4) from above the valve seat (8) into the overflow pipe (25) from an upper mouth opening (27), the overflow pipe extending upward in the installed position substantially counter to the direction of the plumb line, and wherein the overflow pipe (25) leads into the second connecting pipe (26) below the first connecting pipe (24), the second connecting pipe leading into the first channel section (4) and / or the second channel section (6) below the valve seat (8) via a lower mouth opening (28); and wherein the outlet opening (7) and the mouth openings (27, 28) are both arranged laterally at the drain valve housing (3) with respect to the drain valve housing (3) such that, when viewed in the installed position, the flow-out pipe (11) and the connecting pipes (24, 26) extend substantially next to one another.

2. The drainage device (1) according to claim 1, characterized in that The mouth openings (27, 28) are each provided by a mouth channel section (29, 30) which extends at an angle to the flow-out pipe central axis (M11).

3. The drain device (1) according to any one of the preceding claims, characterized in that The mouth openings (27, 28) are bounded in the front by side edges (37) which lie in a plane which is parallel to the central plane (ME) or which forms an angle of at most 45° to the central plane, the central plane extending through the first central axis (M4) and the pipe central axis (M11).

4. The water drainage device (1) according to claim 1 or 2, characterized in that The two connecting pipes (24, 26) extend laterally side by side and spaced apart from the flow-out pipe (11), wherein, when viewed from above in the installed position, the connecting pipe central axes (M24, M26) are parallel to the flow-out pipe central axis (M11).

5. The water drainage device (1) according to claim 1 or 2, characterized in that The connection pipes (24, 26) each extend into the mouth opening (27, 28) with a pipe section (31).

6. The drain device (1) according to claim 5, characterized in that Between the pipe section (31) and the mouth opening (27, 28) there is arranged a seal (32) respectively.

7. The drain device (1) according to claim 6, characterized in that The seal (32) has a section (38) which is exposed in the mouth opening (27, 28), wherein the section is in the form of an inclined surface.

8. The water drainage device (1) according to claim 1 or 2, characterized in that Between the mouth opening (27, 28) and the respective connection pipe (24, 26) there is provided a turning section (33), wherein the turning section (33) is part of the mouth opening (27, 28) and / or part of the connection pipe (24, 26).

9. The drain device (1) according to claim 4, characterized in that In the installed position, the connection pipe centre axis (M24, M26) is inclined at an angle with respect to a horizontal plane (HE), wherein the connection pipe (24, 26) is descending towards the mouth opening (27, 28).

10. The water drainage device (1) according to claim 1 or 2, characterized in that Before entering the first channel section (4), the second connection pipe (26) and / or the lower mouth opening (28) has a shoulder (34) which is oriented downwards in the direction of gravity.

11. A drain device (1) according to claim 1 or 2, characterized in that The overflow unit (23) is positioned in a construction space (C) which extends in the upward direction laterally with respect to the outflow pipe (11), wherein in the installed position the construction space (C) is bounded downwards by a lower plane (UE), wherein the lower plane (UE) extends at right angles to a centre plane (ME) spanned by the first centre axis (M4) and the second centre axis (M6) and extends through a lower side surface line (UM) which forms the intersection of a vertical plane (VE) which extends through the outflow pipe centre axis (M11) and which extends vertically.

12. The water drainage device (1) according to claim 1 or 2, characterized in that The actuation unit (10) has an actuation lever (12) which acts on the valve body (9) and an actuator element (13) for actuating the actuation lever (12), wherein the actuator element (13) extends at least in a section laterally alongside the outflow pipe (11).

13. The water drainage device of claim 12, wherein, The actuator element (13) is positioned on one side of the outflow pipe (11) and is characterised in that the two connection pipes (24, 26) and the overflow pipe (25) are positioned on the other side of the outflow pipe (11).

14. The drain device (1) according to claim 12, characterized in that The mouth openings (27, 28) are positioned opposite the actuator element (13) with respect to a centre plane (ME) spanned by the first centre axis (M4) and the second centre axis (M6).

15. The drain device (1) according to claim 12, characterized in that The actuator element (13) is positioned at a distance (A) laterally spaced apart from a side surface (16) of the outflow pipe (11), wherein the distance (A) is smaller than the outer diameter of the outflow pipe (11).

16. A drain device (1) according to claim 1 or 2, characterized in that The outflow pipe (11) extends in a straight line without a bend; and / or is characterised in that a siphon element is attached opposite the second channel section (6) behind the outflow pipe (11).

17. The drain device (1) according to claim 2, wherein The angle is 45° to 135°.

18. The drain device (1) according to claim 2, wherein The angle is 90°.

19. The drain device (1) according to claim 15, wherein The distance (A) is smaller than half the outer diameter of the outflow pipe (11).

Citation Information

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