Drain device for a sanitary device, and sanitary device comprising a drain device

Abstract

The invention relates to a drain device (1) for a sanitary device (2), at least having: - a housing (3) with a basin (4) to which a liquid can be supplied from the sanitary device (2); - a drain (5) for the liquid; and - a closure (6) for the drain (5), wherein the closure can be moved between an open position (7), in which the liquid can flow out of the basin (4) via the drain (5), and a closing position (8), in which the liquid is accumulated in the basin (4) and in which the liquid can be at least partly recirculated from the basin (4) to the sanitary device (2), and the closure (6) has an overflow opening (9) for the liquid. The invention additionally relates to a sanitary device (2) comprising such a drain device (1).

Description

[0001] Drainage device for a sanitary facility and sanitary facility with a drainage device

[0002] The present invention relates to a drainage device for a sanitary facility and a sanitary facility with a drainage device, wherein the sanitary facility can be used in particular by persons in sanitary rooms, such as bathrooms, for showering, bathing and / or for personal hygiene.

[0003] The use of sanitary facilities such as showers or bathtubs can result in high water consumption. For this reason, sanitary facilities are known in which at least a portion of the used water can be returned to the sanitary facilities for reuse. To do this, the used water must be accumulated after flowing from the sanitary facility and then returned to the drainage system using a pump. If too little fluid is returned to the drainage system, the fluid can undesirably back up into the sanitary facility.

[0004] The object of the invention is therefore to at least partially solve the problems described with reference to the prior art and, in particular, to provide a drainage device that allows the liquid to accumulate to form a water reservoir and prevents the liquid from backing up into the sanitary fixture. Furthermore, a sanitary fixture is to be provided whose drainage device allows the liquid to accumulate to form a water reservoir and prevents the liquid from backing up into the sanitary fixture.

[0005] These objects are achieved with a drainage device and a sanitary device according to the features of the independent patent claims. Further advantageous embodiments of the invention are specified in the dependent patent claims. It should be noted that the features listed individually in the dependent patent claims can be combined with one another in any technologically expedient manner and define further embodiments of the invention. Furthermore, the features listed in the patent claims are further specified and explained in the description, with further preferred embodiments of the invention being presented.

[0006] A drainage device for a sanitary facility which has at least the following contributes to this:

[0007] - a housing with a basin to which a liquid can be supplied from the sanitary device;

[0008] - a drain for the liquid; and

[0009] - a closure for the drain, which is adjustable between an open position in which the liquid can flow out of the basin via the drain, and a closed position in which the liquid accumulates in the basin and in which the liquid from the basin can be at least partially returned to the sanitary fixture, and wherein the closure has an overflow opening for the liquid.

[0010] The sanitary facility is, in particular, a facility for a person's personal hygiene. For this purpose, the sanitary facility can, for example, be designed in the manner of a shower or bathtub and / or be arranged in a sanitary room, such as a bathroom. In addition, the sanitary facility can be used for therapeutic applications. The sanitary facility has at least one dispensing device for a liquid. The at least one dispensing device can, in particular, be a shower head, overhead shower, hand shower, nozzle and / or outlet opening. By means of the at least one dispensing device, a liquid, in particular water, can be dispensed in particular into (at least) one sanitary basin, into a collecting device, into a shower tray and / or onto a floor of the sanitary facility, from where the liquid can flow into the drainage device.

[0011] The drainage device comprises a housing which can be made at least partially of plastic and / or metal. The drainage device or the housing can in particular be installed at least partially into a wall of the sanitary device, into a floor of the sanitary device, into a building wall of a building and / or into a building floor of the building. A basin is formed in the housing, to which the liquid can be fed from the sanitary device. The housing can have an inlet opening through which the liquid can flow from the sanitary device into the basin. The inlet opening can be formed, for example, in a side wall of the housing. The inlet opening can, for example, be rectangular, square or round.The housing and / or the inlet opening can be arranged at least partially at the level of and / or below the (at least) one sanitary basin, the collecting device, the shower tray, and / or the floor of the sanitary facility. The liquid can be supplied to the basin from the sanitary facility, in particular (only) by gravity. The housing and / or the basin can have an inlet for fresh water, so that the basin can be flushed, in particular, at least partially with the fresh water.

[0012] The drainage device comprises an outflow for the liquid. The outflow is formed in particular in a basin bottom of the basin. The outflow can be a drain opening in the basin and / or the housing. The liquid can be fed in particular to a sewer system via the outflow. A drain line, for example in the manner of a pipeline, can be connected to the outflow. The drain can, for example, have a diameter of 10 mm [millimeters] to 200 mm. The drainage device has a closure for the outflow. The closure can be adjustable between an open position and a closed position. In the open position of the closure, the liquid can in particular flow completely out of the basin into the sewer system, so that it in particular does not accumulate in the basin.When the closure is in the closed position, the liquid can be collected in the basin and at least partially returned from the basin to the sanitary facility. The liquid accumulated in the basin can be returned to the discharge device of the sanitary facility, for example with the help of an (electric) pump. For this purpose, the basin can be connectable to the discharge device, for example via a return line. The housing and / or the basin can have a pump connection for the pump and / or a line connection for the return line. The closure has an overflow opening for the liquid. When the closure is in the closed position, the liquid can flow out of the basin via the overflow opening if a maximum storage height of the liquid in the basin is exceeded.This prevents the liquid from flowing back out of the inlet opening of the housing and / or from backing up to the sanitary fixture. When the closure is in the closed position, the overflow opening is located below the inlet opening or below an inlet edge of the inlet opening. The basin can have a liquid absorption capacity of, for example, 1 litre to 10 litres (particularly when the maximum retention height is reached). The maximum retention height in the basin can be, for example, 10 mm to 100 mm (particularly from the basin floor and / or in a vertical direction). The liquid can flow away via the overflow opening, in particular into the drain.

[0013] The closure can be at least partially tubular. For example, the closure can be at least partially designed in the manner of a hollow cylinder, a (bottom-open) pot, and / or a plug. The closure can extend, in particular along a (for example straight) longitudinal axis, from a first longitudinal end to a second longitudinal end. The closure can have a length of, for example, 10 mm to 100 mm (in particular parallel to the longitudinal axis and / or in a vertical direction). The closure can have an inner diameter of, for example, 8 mm to 98 mm and / or an outer diameter of, for example, 10 mm to 100 mm (in particular orthogonal to the longitudinal axis, in a horizontal direction, and / or at the second longitudinal end). A wall thickness of the closure, in particular at the second longitudinal end, can be, for example, 0.5 mm to 5 mm.

[0014] In the closed position, the closure can be positioned with its first longitudinal end on the drain. This allows the liquid to flow from the basin into the drain only via the overflow opening of the closure.

[0015] The closure can have a seal at its first longitudinal end. The seal can be annular in particular and / or arranged in a groove, particularly annular, of the closure. The seal can be made at least partially of an elastic material, such as rubber. In the closed position of the closure, the seal can rest in particular on the bottom of the pool. In the closed position of the closure, the seal can, in particular, seal a gap between the closure and the bottom of the pool.

[0016] The overflow opening can be formed at a second longitudinal end of the closure. The second longitudinal end of the closure can form an overflow edge for the liquid when the closure is in the closed position. From the overflow opening, the liquid can flow into the drain, in particular through the closure and / or through the first longitudinal end of the closure. The drainage device can have a drive for the closure. With the aid of the drive, the closure can be adjusted, in particular between the open position and the closed position, in particular parallel to the longitudinal axis. The drive can be, for example, an electric motor, a linear drive, and / or a servo motor. The drive can be controllable, for example, by a controller of the drainage device, in particular automatically. The controller can, for example, comprise at least one microprocessor.

[0017] The drive can be connected to the closure via a connecting element. The connecting element can, for example, be rod-shaped and / or consist at least partially of plastic or metal. The drive can be connected to the connecting element, for example, via a lever mechanism. The closure can have a receptacle for the connecting element.

[0018] The connecting element can be guided in a guide. The guide can be designed, for example, as a sliding guide and / or a linear guide. The guide can, for example, be arranged on the housing and / or formed in the housing. The connecting element can be guided by the guide, in particular parallel to the longitudinal axis, and / or moved in the guide parallel to the longitudinal axis.

[0019] The connecting element can be arranged coaxially with the closure. For example, the connecting element can be attached to the closure coaxially with the closure.

[0020] According to a further aspect, a sanitary device is also proposed, which has at least the following: a dispensing device for dispensing a liquid; and a drainage device as described here, to which the liquid can be fed after it has been dispensed by the dispensing device.

[0021] The sanitary facilities include, in particular, the shower or bathtub.

[0022] For further details on the sanitary facility, please refer in full to the description of the drainage facility.

[0023] The invention and the technical environment are explained in more detail below with reference to the figures. It should be noted that the figures show preferred embodiments of the invention, but the invention is not limited thereto. Identical components in the figures are provided with the same reference numerals. They show, by way of example and schematically:

[0024] Fig. 1: a sanitary facility in a perspective view;

[0025] Fig. 2: a drain device of the sanitary facility with a closure in a

[0026] Closed position in a perspective view;

[0027] Fig. 3: the drainage device with the closure in the closed position in a

[0028] cross-section;

[0029] Fig. 4: the drainage device with the closure in an open position in a perspective view; and

[0030] Fig. 5: the drainage device with the closure in the open position in a

[0031] Cross-section. Figure 1 shows a perspective view of a sanitary fixture 2 in the form of a shower. The sanitary fixture 2 comprises a dispensing device 16 for dispensing a liquid in the form of a showerhead. After being dispensed, the liquid flows via a base 17 into an inlet opening 18 of a drainage device 1, through which the liquid can be fed to a sewer system (not shown here) and / or returned to the dispensing device 16. The drainage device 1 is arranged in a side wall 19 of the sanitary fixture 2.

[0032] Fig. 2 shows the drainage device 1 of the sanitary device 2 shown in Fig. 1 in a perspective view. The drainage device 1 has a housing 3, wherein the inlet opening 18 for the liquid is formed in a side wall 19 of the housing 3. The liquid can flow via an inlet edge 20 of the inlet opening 18 into a basin 4 of the housing 3. A basin bottom 21 of the basin 4 has an outlet 5, via which the liquid from the basin 4 can be fed to the sewer system. The drainage device 1 comprises a closure 6, which is in a closed position 8 in Fig. 1.

[0033] Fig. 3 shows the drainage device 1 with the closure 6 in the closed position 8 in a cross-section along the sectional plane III-III shown in Fig. 2. The closure 6 is tubular and extends along a longitudinal axis 22 from a first longitudinal end 10 to a second longitudinal end 11. The closure 6 has a length 31 parallel to the longitudinal axis 22. The closure 6 has an annular seal 12 at the first longitudinal end 10, with which the closure 6 sits on the drain 5 in the closed position 8. This allows the liquid to accumulate in the basin 4 until the liquid in the basin 4 reaches a maximum accumulation height 23. When the maximum storage height 23 is exceeded, the liquid flows over an overflow edge 24 of the closure 6 into an overflow opening 9 of the closure 6. The overflow edge 24 and the overflow opening 9 are formed at the second longitudinal end 11 of the closure.The closure 6 has an inner diameter 25 and an outer diameter 26 at the second longitudinal end 11. The overflow edge 24 and the overflow opening 9 are located (in an operational state of the drainage device 1 and / or in the closed position 8 of the closure 6) below the inlet edge 20 of the inlet opening 18 of the housing 3, so that the liquid from the basin 4 cannot flow out of the inlet opening 18. The first longitudinal end 10 of the closure 6 is open, so that the liquid flowing into the closure 6 via the overflow opening 9 can flow through the closure 6 and / or via the first longitudinal end 10 of the closure 6 into the drain 5. The liquid accumulated in the basin 4 can be recirculated by a pump (not shown here) of the discharge device 16 shown in Fig. 1. The drainage device 1 is therefore in a circulation operating mode in Figs. 2 and 3.

[0034] Fig. 4 shows the drainage device 1 in a perspective view after the closure 6 has been moved into an open position 7 by a drive 13.

[0035] Fig. 5 shows the drainage device 1 with the closure 6 in the open position 7 in a cross-section along the sectional plane VV shown in Fig. 4. In the open position 7, the first longitudinal end 10 of the closure 6 is lifted off the drain 5 so that the liquid from the basin 4 can flow directly out of the basin 4 via the drain 5 and does not accumulate in the basin 4. The drainage device 1 is therefore in a drain operating mode in Figs. 4 and 5. The closure 6 is connected to the drive 13 via a connecting element 14 and a lever mechanism 27 so that the closure 6 can be adjusted by the drive 13 parallel to the longitudinal axis 22 between the open position 7 and the closed position 8 shown in Figs. 2 and 3. The connecting element 14 is rod-shaped and guided in a guide 15 of the housing 3 parallel to the longitudinal axis 22.The connecting element 14 is arranged coaxially with the closure 6 and is secured at its first longitudinal connecting element end 28 in a receptacle 30 of the closure 6. The receptacle 30 is formed at the first longitudinal end 10 of the closure 6. The lever mechanism 27 is connected to the connecting element 14 at a second longitudinal connecting element end 29.

[0036] The present invention prevents the liquid from backing up into the sanitary facility 2.

[0037] List of reference symbols

[0038] 1 drainage device

[0039] 2 sanitary facilities

[0040] 3 housings

[0041] 4 pools

[0042] 5 Drain

[0043] 6 Closure

[0044] 7 Disclosure

[0045] 8 Closed position

[0046] 9 Overflow opening

[0047] 10 first long end

[0048] 11 second longitudinal end

[0049] 12 Seal

[0050] 13 Drive

[0051] 14 Connecting element

[0052] 15 Guide

[0053] 16 Dispensing facility

[0054] 17 Floor

[0055] 18 Inlet opening

[0056] 19 Side wall

[0057] 20 Leading edge

[0058] 21 Pelvic floor

[0059] 22 Longitudinal axis 22

[0060] 23 Dam height

[0061] 24 Overflow edge

[0062] 25 inner diameter

[0063] 26 Outer diameter 27 Lever mechanism

[0064] 28 first longitudinal connecting element end

[0065] 29 second longitudinal connecting element end

[0066] 30 Recording 31 Length

Claims

Patent claims 1. Drainage device (1) for a sanitary facility (2), at least comprising: - a housing (3) with a basin (4) to which a liquid can be supplied from the sanitary device (2); - a drain (5) for the liquid; and - a closure (6) for the drain (5), which is adjustable between an open position (7), in which the liquid can flow out of the basin (4) via the drain (5), and a closed position (8), in which the liquid accumulates in the basin (4) and in which the liquid from the basin (4) can be at least partially returned to the sanitary device (2), and wherein the closure (6) has an overflow opening (9) for the liquid.

2. Drainage device (1) according to claim 1, wherein the closure (6) is at least partially tubular.

3. Drainage device (1) according to one of the preceding claims, wherein the closure (6) is arranged in the closed position (8) with its first longitudinal end (10) on the drain (5).

4. Drainage device (1) according to one of the preceding claims, wherein the closure (6) has a seal (12) at its first longitudinal end (10).

5. Drainage device (1) according to one of the preceding claims, wherein the overflow opening (9) is formed at a second longitudinal end (11) of the closure (6).

6. Drainage device (1) according to one of the preceding claims, comprising a drive (13) for the closure (6).

7. Drainage device (1) according to claim 6, wherein the drive (13) is connected to the closure (6) via a connecting element (14).

8. Drainage device (1) according to claim 7, wherein the connecting element (14) is guided in a guide (15).

9. Drainage device (1) according to claim 7 or 8, wherein the connecting element (14) is arranged coaxially with the closure (6).

10. Sanitary facility (2), comprising at least: - a dispensing device (16) for dispensing a liquid; and - a drainage device (1) according to one of the preceding claims, to which the liquid can be supplied after it has been dispensed by the dispensing device (16).

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