EP2918739B1 - Device for automatically actuating a floor drainage valve at a sanitary basin, in particular a bathtub, and bath tub with such a device - Google Patents

Device for automatically actuating a floor drainage valve at a sanitary basin, in particular a bathtub, and bath tub with such a device Download PDF

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Publication number
EP2918739B1
EP2918739B1 EP15157568.5A EP15157568A EP2918739B1 EP 2918739 B1 EP2918739 B1 EP 2918739B1 EP 15157568 A EP15157568 A EP 15157568A EP 2918739 B1 EP2918739 B1 EP 2918739B1
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EP
European Patent Office
Prior art keywords
pressure sensor
control means
drainage valve
water level
drain set
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EP15157568.5A
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German (de)
French (fr)
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EP2918739A1 (en
Inventor
Daniel Görke
Frank Hennes
Ludger Hegemenn
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Viega Technology GmbH and Co KG
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Viega Technology GmbH and Co KG
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Priority to PL15157568T priority Critical patent/PL2918739T3/en
Publication of EP2918739A1 publication Critical patent/EP2918739A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/24—Overflow devices for basins or baths
    • E03C1/242—Overflow devices for basins or baths automatically actuating supply or draining valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22—Outlet devices mounted in basins, baths, or sinks
    • E03C1/23—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
    • E03C1/232—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms combined with overflow devices
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/24—Overflow devices for basins or baths
    • E03C2001/2406—Overflow alarm devices

Definitions

  • the invention relates to a drain fitting with a floor drain valve and a device for automatically actuating the floor drain valve for a sanitary basin, in particular a bathtub, depending on the height of the water level in the sanitary basin. Furthermore, the invention relates to a bathtub, preferably a free-standing bathtub, which is equipped with such a device.
  • Conventional baths have, to be overflow safe, below their upper edge an overflow opening, on which a arranged on the outside of the tub overflow pipe is mounted. This is also typically the case with free-standing bathtubs.
  • the overflow pipe mounted on the outside of the tub is often considered aesthetically unpleasant. To improve the visual impression, chromed metal pipes are sometimes used as overflow pipes.
  • a mechanically operating waste set for baths without pre-drilled overflow is already known from practice, which works in the manner of a so-called "click-clack" drain, but automatically opens at a water level of about 40 cm, the drain valve to flood a overflowing To prevent bathing water.
  • the drain set allows the water to drain to a water level of about 30 cm and then closes the drain valve automatically.
  • This mechanical waste set eliminates the need for an overflow hole and an overflow pipe on the tub wall.
  • a disadvantage of this drain set is that due to the medium term unavoidable contamination of the mechanism by soap, foam, hair, etc. the reliable triggering function is not guaranteed. The result is that the drain valve opens either too early and thus the desired water level is not reached, or that the drain valve opens too late and thus the overflow protection is not given.
  • An automatic bathtub filling and circulating system which controls a bathtub floor drain valve based on the height of the bathtub's water level as measured by a pressure sensor.
  • the housing of the floor drain valve has above the valve body (plug) a connection in the form of a branching pipe, at the end remote from the valve body of the pressure sensor is arranged. In this arrangement is to be expected with deposits of soap, foam, hair, etc., which may affect the reliable operation of the pressure sensor.
  • EP 2 759 643 A2 discloses a safety system for a bathtub, in which a sensor for measuring the water level at the bottom of the tub or in the vicinity of the tub bottom is arranged.
  • the describes DE 20 2006 012 663 U1 a device for detecting the water level in a provided with a drain set sanitary basin.
  • the height of the water level is detected by a measuring device which is connected via a hose or a pipe with a formed on an annular adapter pipe socket.
  • the water connection between the measuring device and the basin is made by drilling in a clamp body, which surrounds the annular adapter with a radial distance.
  • the holes and the annulus between clamp body and adapter can be relatively easily soiled by soap, foam, hair, etc.
  • the present invention seeks to provide a drain fitting and device of the type mentioned above, which makes it possible to produce overflow-proof baths without overflow opening in the tub wall, the device should provide reliable reliability.
  • the inventive device comprises at least one of the height of the water level detecting pressure sensor which is arranged on a line which opens at a bottom opening of the basin or the bathtub, an electronic measuring and control device, are transmitted to the measuring signals of the pressure sensor, and an actuator for opening and / or closing the floor drain valve, the actuator being controlled by the measuring and control device as a function of the water level detected by the pressure sensor.
  • the device according to the invention offers the possibility to produce bathtubs without overflow opening in the tub wall and yet to ensure a reliable overflow protection in such bathtubs.
  • the device according to the invention is insensitive to contamination by soap, foam, hair, etc. and thus provides a high level of reliability.
  • the bottom opening associated with the pressure sensor is integrated in the drain fitting according to the invention.
  • the bottom opening can be arranged below and at a distance from a valve body covering hood or screen.
  • one end of the line, on which the pressure sensor is arranged opens on a valve seat surface of the floor drain valve, wherein this end of the pipe is sealed watertight in the closed state of the floor drain valve by a valve body of the floor drain valve.
  • An advantageous embodiment of the device according to the invention is characterized in that the measuring and control device is provided with at least one adjusting means by which a maximum water level height or a proportional size, in which the floor drain valve is opened by the actuator is adjustable.
  • the maximum water level can be set flexibly, so that it can be adjusted individually according to the wishes of the user of the bathtub or sanitary pool.
  • this embodiment makes it possible to optimally adapt the device according to the invention to baths of different depths (wall height).
  • a further embodiment of the device according to the invention is characterized in that its measuring and control device is provided with a timer, preferably an adjustable timer which, after automatically opening the floor drain valve due to a detected by the pressure sensor water level that corresponds to a predetermined maximum water level or exceeds this at the end of a defined period of time, causes a closing of the floor drain valve.
  • a timer preferably an adjustable timer which, after automatically opening the floor drain valve due to a detected by the pressure sensor water level that corresponds to a predetermined maximum water level or exceeds this at the end of a defined period of time, causes a closing of the floor drain valve.
  • the measuring and control device of the device according to the invention is provided with at least one adjusting means, by means of which a minimum water level height or a thereto proportional size at which the floor drain valve is closed by the actuator is adjustable.
  • a minimum water level height or a thereto proportional size at which the floor drain valve is closed by the actuator is adjustable.
  • a further embodiment of the invention provides that the electronic measuring and control device is prepared to check a pressure signal output by the pressure sensor and the actuator activating control current, for example, the motor current de de floor drain valve associated actuator, for plausibility ,
  • a further advantageous embodiment of the invention is characterized in that the electronic measuring and control device has a processor, preferably a microprocessor, and a component monitoring the function of the processor, for example a so-called "watchdog".
  • a processor preferably a microprocessor
  • a component monitoring the function of the processor for example a so-called "watchdog”.
  • This embodiment also contributes to a high reliability of the device according to the invention.
  • a possible malfunction of the processor can be detected and then either signaled or a suitable jump instruction, which cleans up the existing malfunction, are initiated.
  • the signal or the jump instruction serve as a trigger for one or more other components of the device according to the invention, which are intended to eliminate the malfunction. In this way, a complete failure of the device according to the invention caused by software failure can be avoided.
  • the electronic measuring and control device is designed such that it emits an acoustic and / or optical signal in case of malfunction of the processor and / or the pressure sensor and / or the actuator.
  • the user of the device can then optionally reset their measuring and control device in a defined initial state, so that they can then work properly and monitored again.
  • the monitoring component (“watchdog") is embodied, for example, in the processor, preferably a microprocessor, or as a microelectronic component which is mounted together with the processor on a printed circuit board.
  • a further advantageous embodiment of the device according to the invention is characterized in that the electronic measuring and control device and / or the actuator is / are provided with an accumulator.
  • an opening of the floor drain valve and thus an "overflow function" is ensured even in case of power failure.
  • the electronic measuring and control device is provided with a device which monitors the state of charge of the accumulator and triggers an opening of the floor drain valve falls below a predetermined or too low state of charge of the accumulator and / or an acoustic and / or emits optical signal.
  • the line to which the pressure sensor is arranged is designed such that when filling the sanitary basin, in particular a bathtub, with water forms an air bubble in front of the pressure sensor.
  • the air bubble in front of the pressure sensor prevents direct contact with dirty service water and thus contamination, which may affect the proper functioning of the pressure sensor.
  • the measuring and control device is provided with at least one adjusting means (not shown), with which a maximum water level h max or a proportional size, in which the floor drain valve is opened by the actuator can be adjusted.
  • the measuring and control device is provided with at least one adjusting means (not shown), with which a minimum water level h min or a proportional size at which the floor drain valve is closed by the actuator, can be adjusted.
  • the bottom opening 7 of the bath 1, at which the line 6 provided with the pressure sensor 5 opens, is arranged at a distance from the floor drain opening 3 or the valve seat surface 8 of the valve body 4.
  • the bottom opening 7 facing away from the end 6.1 of the line 6, however, opens at the valve seat surface 8 of the floor drain valve, so that this end of the conduit 6 is sealed watertight in the closed state of the floor drain valve by the valve body 4.
  • the line 6 is similar or corresponds to a bypass.
  • Fig. 1 is sketched a situation in which the floor drain valve of the bathtub is closed.
  • the pressure sensor 5 preferably continuously detects the current height of the water level W and sends a corresponding measurement signal to the measuring and control device which controls the actuator for actuating the floor drain valve in dependence on the detected water level height W.
  • the measuring and control device causes the actuator to open the floor drain valve opens. This ensures a reliable overflow protection.
  • the opening of the floor drain valve is in Fig. 1 indicated by the valve body 4 shown upwardly pointing arrow.
  • the predetermined by the adjustment maximum water level h max for example, be about 400 mm.
  • Fig. 2 is outlined a situation in which the floor drain valve is open and the water level W in the bathtub drops accordingly.
  • the pressure sensor 5 further detects the current height of the water level W and sends a corresponding measurement signal to the measuring and control device. If the water level W falls to or below the predetermined or set minimum water level height h min, the measuring and control device causes the actuator to close the floor drain valve.
  • the closing of the drain valve is in Fig. 2 indicated by the valve body 4 shown, pointing down arrow.
  • the predetermined by the adjustment minimum water level height h min can be, for example, about 300 mm.
  • the device according to the invention thus represents an effective overflow protection in combination with the floor drain valve and makes it possible to produce overflow-proof baths without overflow bore in the tub side wall and without arranged on the outside of the tub wall overflow pipe.
  • the bath 1 sketched in the drawing accordingly has no overflow opening (overflow bore) in its tub side wall.
  • the formation of the line 6 as a bypass has the advantage that the line 6 is flushed when opening the drain valve of draining water and thus cleaned.
  • the line 6 is easily accessible for cleaning purposes via the arranged in the bottom of the tub 1 opening 7.
  • the opening 7 opens at the top of a set in a floor drain opening 3 of the tub 1 expiration set.
  • the opening 7 be arranged below and at a distance from a valve body 4 covering hood or screen.
  • the line 6, on which the pressure sensor 5 is arranged, is preferably designed so that when filling the basin or the bath 1 with water in front of the pressure sensor forms an air bubble.
  • the electronic measuring and control device is prepared to check the pressure sensor signal and the control current of the actuator, for example, the motor current of the valve body 4 actuated servomotor for plausibility.
  • the electronic measuring and control device preferably has a processor.
  • the function of the processor is monitored, for example by means of a so-called "watchdog" or another function monitoring component.
  • the electronic measuring and control device emits an acoustic and / or optical signal in case of malfunction of the processor and / or the pressure sensor 5 and / or the actuator.
  • the electronic measuring and control device and / or the actuator are provided with an accumulator (not shown).
  • the electronic measuring and control device is provided with a device which monitors the state of charge of the accumulator and triggers opening of the floor drain valve falls below a critical state of charge and / or emits an acoustic and / or optical signal.
  • the embodiment of the invention is not limited to the embodiment shown in the drawing. On the contrary, numerous variants are conceivable which make use of the invention specified in the appended claims, even if the design deviates from the example shown.
  • the measuring and control device with a timer preferably an adjustable timer is provided, which causes after automatic opening of the floor drain valve due to a detected by the pressure sensor 5 water level, which corresponds to a predetermined maximum water level h max or exceeds this, at the end of a defined period of time, closing the floor drain valve.

Description

Die Erfindung betrifft eine Ablaufgarnitur mit einem Bodenablaufventil und eine Vorrichtung zur automatischen Betätigung des Bodenablaufventils für ein sanitäres Becken, insbesondere eine Badewanne, in Abhängigkeit der Höhe des Wasserstandes in dem sanitären Becken. Des Weiteren betrifft die Erfindung eine Badewanne, vorzugsweise eine freistehende Badewanne, die mit einer solchen Vorrichtung ausgestattet ist.
Herkömmliche Badewannen weisen, um überlaufsicher zu sein, unterhalb ihres oberen Randes eine Überlauföffnung auf, an der ein an der Außenseite der Wanne angeordnetes Überlaufrohr montiert ist. Auch bei freistehenden Badewannen ist dies typischerweise der Fall.
Das an der Außenseite der Wanne montierte Überlaufrohr wird jedoch in ästhetischer Hinsicht oft als unschön empfunden. Um den optischen Eindruck zu verbessern, werden daher mitunter verchromte Metallrohre als Überlaufrohre verwendet. Ferner ist aus der Praxis bereits eine mechanisch arbeitende Ablaufgarnitur für Badewannen ohne vorgebohrtem Überlauf bekannt, die nach Art eines sogenannten "Klick-Klack"-Ablaufs funktioniert, jedoch bei einer Wasserstandshöhe von ca. 40 cm das Ablaufventil automatisch öffnet, um einer Überschwemmung durch überlaufendes Badewasser vorzubeugen. Die Ablaufgarnitur lässt das Wasser bis auf eine Wasserstandshöhe von ca. 30 cm ablaufen und schließt sodann das Ablaufventil automatisch. Diese mechanisch arbeitende Ablaufgarnitur ermöglicht einen Verzicht auf eine Überlaufbohrung und ein Überlaufrohr an der Wannenwand. Nachteilig an dieser Ablaufgarnitur ist jedoch, dass aufgrund der mittelfristig nicht zu vermeidenden Verschmutzung der Mechanik durch Seife, Schaum, Haare, etc. die zuverlässige Auslösefunktion nicht gewährleistet ist. Die Folge ist, dass das Ablaufventil entweder zu früh öffnet und somit der gewünschte Wasserstand nicht erreicht wird, oder dass das Ablaufventil zu spät öffnet und somit der Überlaufschutz nicht gegeben ist.The invention relates to a drain fitting with a floor drain valve and a device for automatically actuating the floor drain valve for a sanitary basin, in particular a bathtub, depending on the height of the water level in the sanitary basin. Furthermore, the invention relates to a bathtub, preferably a free-standing bathtub, which is equipped with such a device.
Conventional baths have, to be overflow safe, below their upper edge an overflow opening, on which a arranged on the outside of the tub overflow pipe is mounted. This is also typically the case with free-standing bathtubs.
However, the overflow pipe mounted on the outside of the tub is often considered aesthetically unpleasant. To improve the visual impression, chromed metal pipes are sometimes used as overflow pipes. Furthermore, a mechanically operating waste set for baths without pre-drilled overflow is already known from practice, which works in the manner of a so-called "click-clack" drain, but automatically opens at a water level of about 40 cm, the drain valve to flood a overflowing To prevent bathing water. The drain set allows the water to drain to a water level of about 30 cm and then closes the drain valve automatically. This mechanical waste set eliminates the need for an overflow hole and an overflow pipe on the tub wall. A disadvantage of this drain set, however, is that due to the medium term unavoidable contamination of the mechanism by soap, foam, hair, etc. the reliable triggering function is not guaranteed. The result is that the drain valve opens either too early and thus the desired water level is not reached, or that the drain valve opens too late and thus the overflow protection is not given.

Aus der GB 2 438 224 A ist ein automatisches Befüllungs- und Zirkulationssystem für Badewannen bekannt, welches basierend auf der von einem Drucksensor gemessenen Höhe des Wasserstands der Badewanne, ein Bodenablaufventil der Badewanne steuert. Das Gehäuse des Bodenablaufventils weist oberhalb des Ventilkörpers (Stopfens) einen Anschluss in Form einer abzweigenden Rohrleitung auf, an deren dem Ventilkörper abgewandten Ende der Drucksensor angeordnet ist. Bei dieser Anordnung ist mit Ablagerungen von Seife, Schaum, Haaren, etc. zu rechnen, welche die zuverlässige Funktion des Drucksensors beeinträchtigen können.From the GB 2 438 224 A An automatic bathtub filling and circulating system is known which controls a bathtub floor drain valve based on the height of the bathtub's water level as measured by a pressure sensor. The housing of the floor drain valve has above the valve body (plug) a connection in the form of a branching pipe, at the end remote from the valve body of the pressure sensor is arranged. In this arrangement is to be expected with deposits of soap, foam, hair, etc., which may affect the reliable operation of the pressure sensor.

In der EP 2 759 643 A2 ist ein Sicherheitssystem für eine Badewanne offenbart, bei dem ein Sensor zur Messung des Wasserstandes am Wannenboden oder in der Nähe des Wannenbodens angeordnet ist. Durch diese Ausgestaltung können sehr leicht Messungenauigkeiten durch Bewegungen von badenden Personen verursacht werden, wodurch eine zuverlässige Funktionssicherheit einer Vorrichtung zur automatischen Betätigung eines Bodenablaufventils an einem sanitären Becken nicht gewährleistet werden kann.In the EP 2 759 643 A2 discloses a safety system for a bathtub, in which a sensor for measuring the water level at the bottom of the tub or in the vicinity of the tub bottom is arranged. By this configuration, measurement inaccuracies can be caused by movements of bathing people very easily, whereby reliable reliability of a device for automatic actuation of a floor drain valve on a sanitary basin can not be guaranteed.

Ferner beschreibt die DE 20 2006 012 663 U1 eine Vorrichtung zur Erfassung des Wasserstandes in einem mit einer Ablaufgarnitur versehenen sanitären Becken. Die Höhe des Wasserstandes wird dabei über eine Messeinrichtung erfasst, die über einen Schlauch oder eine Rohrleitung mit einem an einem ringförmigen Adapter ausgebildeten Rohrstutzen verbunden ist. Die Wasserverbindung zwischen der Messeinrichtung und dem Becken wird durch Bohrungen in einem Klemmkörper hergestellt, den der ringförmige Adapter mit radialem Abstand umgibt. Die Bohrungen sowie der Ringraum zwischen Klemmkörper und Adapter können relativ leicht durch Seife, Schaum, Haare, etc. verschmutzen.Furthermore, the describes DE 20 2006 012 663 U1 a device for detecting the water level in a provided with a drain set sanitary basin. The height of the water level is detected by a measuring device which is connected via a hose or a pipe with a formed on an annular adapter pipe socket. The water connection between the measuring device and the basin is made by drilling in a clamp body, which surrounds the annular adapter with a radial distance. The holes and the annulus between clamp body and adapter can be relatively easily soiled by soap, foam, hair, etc.

Davon ausgehend lag der vorliegenden Erfindung die Aufgabe zugrunde, eine Ablaufgarnitur und Vorrichtung der eingangs genannten Art zu schaffen, die es ermöglicht, überlaufsichere Badewannen ohne Überlauföffnung in der Wannenwand herzustellen, wobei die Vorrichtung eine zuverlässige Funktionssicherheit bieten soll.Based on this, the present invention seeks to provide a drain fitting and device of the type mentioned above, which makes it possible to produce overflow-proof baths without overflow opening in the tub wall, the device should provide reliable reliability.

Diese Aufgabe wird erfindungsgemäß durch eine Ablaufgarnitur und Vorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte und vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.
Die erfindungsgemäße Vorrichtung umfasst mindestens einen die Höhe des Wasserstandes erfassenden Drucksensor, der an einer Leitung angeordnet ist, die an einer Bodenöffnung des Beckens bzw. der Badewanne mündet, eine elektronische Mess- und Steuerungseinrichtung, an die Messsignale des Drucksensors übertragen werden, und ein Stellglied zum Öffnen und/oder Schließen des Bodenablaufventils, wobei das Stellglied von der Mess- und Steuerungseinrichtung in Abhängigkeit der vom Drucksensor erfassten Wasserstandshöhe gesteuert wird.
Die erfindungsgemäße Vorrichtung bietet die Möglichkeit, Badewannen ohne Überlauföffnung in der Wannenwand herzustellen und dennoch bei solchen Badewannen einen zuverlässigen Überlaufschutz sicherzustellen. Durch die Verwendung mindestens eines Drucksensors und dessen Anordnung an einer Leitung, die an einer Bodenöffnung des Beckens bzw. der Badewanne mündet, ist die erfindungsgemäße Vorrichtung unempfindlich gegen eine Verschmutzung durch Seife, Schaum, Haare, etc. und bietet somit eine hohe Funktionssicherheit. Die dem Drucksensor zugeordnete Bodenöffnung ist in der erfindungsgemäßen Ablaufgarnitur integriert. Die Bodenöffnung kann dabei unterhalb und in Abstand von einer den Ventilkörper überdeckenden Haube oder Sichtblende angeordnet sein.This object is achieved by a pop-up waste and device with the features of claim 1. Preferred and advantageous embodiments of the invention are specified in the subclaims.
The inventive device comprises at least one of the height of the water level detecting pressure sensor which is arranged on a line which opens at a bottom opening of the basin or the bathtub, an electronic measuring and control device, are transmitted to the measuring signals of the pressure sensor, and an actuator for opening and / or closing the floor drain valve, the actuator being controlled by the measuring and control device as a function of the water level detected by the pressure sensor.
The device according to the invention offers the possibility to produce bathtubs without overflow opening in the tub wall and yet to ensure a reliable overflow protection in such bathtubs. By using at least one pressure sensor and its arrangement on a line which opens at a bottom opening of the basin or the bathtub, the device according to the invention is insensitive to contamination by soap, foam, hair, etc. and thus provides a high level of reliability. The bottom opening associated with the pressure sensor is integrated in the drain fitting according to the invention. The bottom opening can be arranged below and at a distance from a valve body covering hood or screen.

Erfindungsgemäß ist es vorgesehen, dass ein Ende der Leitung, an welcher der Drucksensor angeordnet ist, an einer Ventilsitzfläche des Bodenablaufventils mündet, wobei dieses Ende der Leitung im geschlossenen Zustand des Bodenablaufventils durch einen Ventilkörper des Bodenablaufventils wasserdicht verschlossen ist. Diese Ausgestaltung trägt zu kompakten Abmessungen der das Bodenablaufventil aufweisenden Ablaufgarnitur bei und ermöglicht zudem eine einfache Reinigung der mit dem Drucksensor versehenen Leitung.According to the invention, it is provided that one end of the line, on which the pressure sensor is arranged, opens on a valve seat surface of the floor drain valve, wherein this end of the pipe is sealed watertight in the closed state of the floor drain valve by a valve body of the floor drain valve. This embodiment contributes to compact dimensions of the floor drain valve having waste set and also allows easy cleaning of the line provided with the pressure sensor.

Eine vorteilhafte Ausgestaltung der erfindungsgemäßen Vorrichtung ist dadurch gekennzeichnet, dass deren Mess- und Steuerungseinrichtung mit mindestens einem Einstellmittel versehen ist, mittels dessen eine maximale Wasserstandshöhe oder eine dazu proportionale Größe, bei welcher das Bodenablaufventil durch das Stellglied geöffnet wird, einstellbar ist. Hierdurch lässt sich die maximale Wasserstandshöhe flexibel einstellen, so dass diese entsprechend den Wünschen des Benutzers der Badewanne bzw. sanitären Beckens individuell eingestellt werden kann. Insbesondere ist durch diese Ausgestaltung eine optimale Anpassung der erfindungsgemäßen Vorrichtung an Badewannen unterschiedlicher Tiefe (Wandhöhe) möglich.An advantageous embodiment of the device according to the invention is characterized in that the measuring and control device is provided with at least one adjusting means by which a maximum water level height or a proportional size, in which the floor drain valve is opened by the actuator is adjustable. As a result, the maximum water level can be set flexibly, so that it can be adjusted individually according to the wishes of the user of the bathtub or sanitary pool. In particular, this embodiment makes it possible to optimally adapt the device according to the invention to baths of different depths (wall height).

Eine weitere Ausgestaltung der erfindungsgemäßen Vorrichtung ist dadurch gekennzeichnet, dass deren Mess- und Steuerungseinrichtung mit einem Zeitglied, vorzugsweise einem einstellbaren Zeitglied versehen ist, welches nach automatischem Öffnen des Bodenablaufventils aufgrund einer vom Drucksensor erfassten Wasserstandshöhe, die einer vorgegebenen maximalen Wasserstandshöhe entspricht oder diese übertrifft, bei Ablauf einer definierten Zeitdauer, ein Schließen des Bodenablaufventils bewirkt. Hierdurch lässt sich auf relativ einfache Weise das Abfließen eines ausreichend hohen Wasservolumens über das Bodenablaufventil zur Gewährleistung des Überlaufschutzes erzielen.A further embodiment of the device according to the invention is characterized in that its measuring and control device is provided with a timer, preferably an adjustable timer which, after automatically opening the floor drain valve due to a detected by the pressure sensor water level that corresponds to a predetermined maximum water level or exceeds this at the end of a defined period of time, causes a closing of the floor drain valve. As a result, the outflow of a sufficiently high volume of water via the floor drain valve to ensure overflow protection can be achieved in a relatively simple manner.

Nach einer weiteren vorteilhaften Ausgestaltung ist die Mess- und Steuerungseinrichtung der erfindungsgemäßen Vorrichtung mit mindestens einem Einstellmittel versehen, mittels dessen eine minimale Wasserstandshöhe oder eine dazu proportionale Größe, bei welcher das Bodenablaufventil durch das Stellglied geschlossen wird, einstellbar ist. Hierdurch lässt sich die minimale Wasserstandshöhe flexibel einstellen, so dass diese entsprechend den Wünschen des Benutzers der Badewanne bzw. sanitären Beckens individuell eingestellt werden kann. Insbesondere ist durch diese Ausgestaltung eine optimale Anpassung der erfindungsgemäßen Vorrichtung an Badewannen unterschiedlicher Tiefe (Wandhöhe) möglich.According to a further advantageous embodiment, the measuring and control device of the device according to the invention is provided with at least one adjusting means, by means of which a minimum water level height or a thereto proportional size at which the floor drain valve is closed by the actuator is adjustable. This makes it possible to adjust the minimum water level height flexible, so that it can be adjusted individually according to the wishes of the user of the bathtub or sanitary pool. In particular, this embodiment makes it possible to optimally adapt the device according to the invention to baths of different depths (wall height).

Für die zuverlässige Funktion der erfindungsgemäßen Vorrichtung sieht eine weitere Ausgestaltung der Erfindung vor, dass die elektronische Mess- und Steuerungseinrichtung hergerichtet ist, ein vom Drucksensor abgegebenes Messsignal und einen das Stellglied aktivierenden Steuerstrom, beispielsweise den Motorstrom eines de Bodenablaufventil zugeordneten Stellmotors, auf Plausibilität zu prüfen.For the reliable operation of the device according to the invention, a further embodiment of the invention provides that the electronic measuring and control device is prepared to check a pressure signal output by the pressure sensor and the actuator activating control current, for example, the motor current de de floor drain valve associated actuator, for plausibility ,

Eine weitere vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass die elektronische Mess- und Steuerungseinrichtung einen Prozessor, vorzugsweise Mikroprozessor, und eine die Funktion des Prozessors überwachende Komponente, zum Beispiel einen sogenannten "Watchdog", aufweist. Auch diese Ausgestaltung trägt zu einer hohen Funktionssicherheit der erfindungsgemäßen Vorrichtung bei. So kann eine mögliche Fehlfunktion des Prozessors erkannt und dies dann entweder signalisiert oder eine geeignete Sprunganweisung, welche die vorhandene Fehlfunktion bereinigt, eingeleitet werden. Das Signal bzw. die Sprunganweisung dienen dabei als Auslöser für eine oder mehrere andere Komponenten der erfindungsgemäßen Vorrichtung, welche die Fehlfunktion beseitigen sollen. Auf diese Weise lässt sich ein durch Softwareversagen verursachter Komplettausfall der erfindungsgemäßen Vorrichtung vermeiden.A further advantageous embodiment of the invention is characterized in that the electronic measuring and control device has a processor, preferably a microprocessor, and a component monitoring the function of the processor, for example a so-called "watchdog". This embodiment also contributes to a high reliability of the device according to the invention. Thus, a possible malfunction of the processor can be detected and then either signaled or a suitable jump instruction, which cleans up the existing malfunction, are initiated. The signal or the jump instruction serve as a trigger for one or more other components of the device according to the invention, which are intended to eliminate the malfunction. In this way, a complete failure of the device according to the invention caused by software failure can be avoided.

Nach einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung ist die elektronische Mess- und Steuerungseinrichtung derart ausgebildet, dass sie bei einer Fehlfunktion des Prozessors und/oder des Drucksensors und/oder des Stellgliedes ein akustisches und/oder optisches Signal abgibt. Der Nutzer der Vorrichtung kann dann gegebenenfalls deren Mess- und Steuerungseinrichtung in einen definierten Ausgangszustand zurücksetzen, damit diese anschließend wieder ordnungsgemäß und überwacht arbeiten kann. Die Überwachungskomponente ("Watchdog") ist beispielsweise in dem Prozessor, vorzugsweise Mikroprozessor, integriert, oder als Mikroelektronik-Baustein, der zusammen mit dem Prozessor auf einer Platine angebracht ist, ausgeführt.According to a further embodiment of the device according to the invention, the electronic measuring and control device is designed such that it emits an acoustic and / or optical signal in case of malfunction of the processor and / or the pressure sensor and / or the actuator. The user of the device can then optionally reset their measuring and control device in a defined initial state, so that they can then work properly and monitored again. The monitoring component ("watchdog") is embodied, for example, in the processor, preferably a microprocessor, or as a microelectronic component which is mounted together with the processor on a printed circuit board.

Eine weitere vorteilhafte Ausgestaltung der erfindungsgemäßen Vorrichtung ist dadurch gekennzeichnet, dass die elektronische Mess- und Steuerungseinrichtung und/oder das Stellglied mit einem Akkumulator versehen ist/sind. Hierdurch wird auch bei Stromausfall ein Öffnen des Bodenablaufventils und damit eine "Überlauffunktion" sichergestellt. Zusätzlich wird in diesem Zusammenhang vorgeschlagen, den Ladezustand des Akkumulator zu überwachen, um stets in der Lage zu sein, das Bodenablaufventil zu öffnen. Dementsprechend sieht eine weitere Ausgestaltung der Erfindung vor, dass die elektronische Mess- und Steuerungseinrichtung mit einer Vorrichtung versehen ist, die den Ladezustand des Akkumulators überwacht und bei Unterschreiten eines vorgegebenen bzw. zu niedrigen Ladezustandes des Akkumulators ein Öffnen des Bodenablaufventils auslöst und/oder ein akustisches und/oder optisches Signal abgibt.A further advantageous embodiment of the device according to the invention is characterized in that the electronic measuring and control device and / or the actuator is / are provided with an accumulator. As a result, an opening of the floor drain valve and thus an "overflow function" is ensured even in case of power failure. In addition, it is proposed in this connection to monitor the state of charge of the accumulator in order always to be able to open the floor drain valve. Accordingly, a further embodiment of the invention provides that the electronic measuring and control device is provided with a device which monitors the state of charge of the accumulator and triggers an opening of the floor drain valve falls below a predetermined or too low state of charge of the accumulator and / or an acoustic and / or emits optical signal.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Leitung, an welcher der Drucksensor angeordnet ist, derart ausgebildet ist, dass sich beim Befüllen des sanitären Beckens, insbesondere einer Badewanne, mit Wasser vor dem Drucksensor eine Luftblase bildet. Die Luftblase vor dem Drucksensor verhindert einen unmittelbaren Kontakt mit verschmutztem Brauchwasser und somit eine Verschmutzung, welche die einwandfreie Funktion des Drucksensors beeinträchtigen kann.According to a further advantageous embodiment of the invention, the line to which the pressure sensor is arranged, is designed such that when filling the sanitary basin, in particular a bathtub, with water forms an air bubble in front of the pressure sensor. The air bubble in front of the pressure sensor prevents direct contact with dirty service water and thus contamination, which may affect the proper functioning of the pressure sensor.

Gelöst wird die oben angegebene Aufgabe auch durch eine Badewanne mit einer Ablaufgarnitur und Vorrichtung gemäß einem der Ansprüche 1 bis 11.
Nachfolgend wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen schematisch:

Fig. 1
eine Vertikalschnittansicht einer mit einer erfindungsgemäßen Vorrichtung ausgestatteten Badewanne während einer Befüllung mit Wasser; und
Fig. 2
eine Vertikalschnittansicht der Badewanne gemäß Fig. 1 in einer Situation, in welcher das Bodenablaufventil durch die erfindungsgemäße Vorrichtung automatisch geöffnet wurde.
Bei dem in der Zeichnung skizzierten Becken 1 handelt es sich um eine Badewanne, insbesondere eine freistehende Badewanne. Der Badewanne 1 ist eine Wasserzulaufarmatur 2, beispielsweise eine Mischarmatur zugeordnet, über die Wasser, insbesondere temperiertes Wasser in die Wanne 1 eingeleitet werden kann. Der Boden der Badewanne 1 weist eine Ablauföffnung 3 auf, an der eine ein Ablaufventil aufweisende Ablaufgarnitur montiert ist. Mit 4 ist ein Ventilkörper des schematisch dargestellten Bodenablaufventils bezeichnet.
Die Badewanne 1 ist mit einer Vorrichtung zur automatischen Betätigung des Bodenablaufventils in Abhängigkeit der Höhe des Wasserstandes (Füllstandes) W ausgestattet. Die Vorrichtung weist hierzu mindestens einen die Höhe des Wasserstandes erfassenden Drucksensor 5 auf, der an einer Leitung 6 angeordnet ist, die an einer Bodenöffnung 7 der Badewanne 1 mündet. Die Öffnung 7 ist dabei in der Ablaufgarnitur integriert. Des Weiteren umfasst die Vorrichtung eine elektronische Mess- und Steuerungseinrichtung (nicht gezeigt), an die Messsignale des Drucksensors 5 übertragen werden, und ein mit der Steuerungseinrichtung elektrisch bzw. steuerungstechnisch verbundenes Stellglied (nicht gezeigt) zum Öffnen und/oder Schließen des Bodenablaufventils. Das Stellglied ist beispielsweise als Stellmotor oder Elektromagnetschalter ausgeführt. Das Stellglied ist vorzugsweise mit einem Hebelmechanismus gekoppelt, der auf den Ventilkörper 4 des Bodenablaufventils einwirkt.The above object is also achieved by a bathtub with a drain fitting and device according to one of claims 1 to 11.
The invention will be explained in more detail with reference to a drawing illustrating an exemplary embodiment. They show schematically:
Fig. 1
a vertical sectional view of a bathtub equipped with a device according to the invention during a filling with water; and
Fig. 2
a vertical sectional view of the bathtub according to Fig. 1 in a situation in which the floor drain valve has been automatically opened by the device according to the invention.
In the sketched in the drawing basin 1 is a bath, especially a freestanding bath. The bathtub 1 is associated with a water inlet fitting 2, for example, a mixing valve, can be introduced via the water, in particular tempered water in the tub 1. The bottom of the bathtub 1 has a drain opening 3, on which a drain valve having a drain valve is mounted. 4 is a valve body of the bottom drain valve shown schematically.
The bathtub 1 is equipped with a device for automatic operation of the floor drain valve depending on the height of the water level (level) W. For this purpose, the device has at least one pressure sensor 5 which detects the height of the water level and is arranged on a line 6 which opens at a bottom opening 7 of the bath 1. The opening 7 is integrated in the drain fitting. Furthermore, the device comprises an electronic measuring and control device (not shown), to which the measuring signals of the pressure sensor 5 are transmitted, and one with the control device electrically or control-technically connected actuator (not shown) for opening and / or closing the floor drain valve. The actuator is designed for example as a servomotor or solenoid switch. The actuator is preferably coupled to a lever mechanism which acts on the valve body 4 of the floor drain valve.

Die Mess- und Steuerungseinrichtung ist mit mindestens einem Einstellmittel (nicht gezeigt) versehen, mit dem eine maximale Wasserstandhöhe h max oder eine dazu proportionale Größe, bei welcher das Bodenablaufventil durch das Stellglied geöffnet wird, eingestellt werden kann. Zudem ist die Mess- und Steuerungseinrichtung mit mindestens einem Einstellmittel (nicht gezeigt) versehen, mit dem eine minimale Wasserstandshöhe h min oder eine dazu proportionale Größe, bei welcher das Bodenablaufventil durch das Stellglied geschlossen wird, eingestellt werden kann.The measuring and control device is provided with at least one adjusting means (not shown), with which a maximum water level h max or a proportional size, in which the floor drain valve is opened by the actuator can be adjusted. In addition, the measuring and control device is provided with at least one adjusting means (not shown), with which a minimum water level h min or a proportional size at which the floor drain valve is closed by the actuator, can be adjusted.

Die Bodenöffnung 7 der Badewanne 1, an der die mit dem Drucksensor 5 versehene Leitung 6 mündet, ist beabstandet von der Bodenablauföffnung 3 bzw. der Ventilsitzfläche 8 des Ventilkörpers 4 angeordnet. Das der Bodenöffnung 7 abgewandte Ende 6.1 der Leitung 6 mündet dagegen an der Ventilsitzfläche 8 des Bodenablaufventils, so dass dieses Ende der Leitung 6 im geschlossenen Zustand des Bodenablaufventils durch den Ventilkörper 4 wasserdicht verschlossen ist. Die Leitung 6 ähnelt bzw. entspricht einem Bypass.The bottom opening 7 of the bath 1, at which the line 6 provided with the pressure sensor 5 opens, is arranged at a distance from the floor drain opening 3 or the valve seat surface 8 of the valve body 4. The bottom opening 7 facing away from the end 6.1 of the line 6, however, opens at the valve seat surface 8 of the floor drain valve, so that this end of the conduit 6 is sealed watertight in the closed state of the floor drain valve by the valve body 4. The line 6 is similar or corresponds to a bypass.

In Fig. 1 ist eine Situation skizziert, in welcher das Bodenablaufventil der Badewanne geschlossen ist. In die Badewanne 1 ist bereits Wasser eingefüllt. Über die Wasserzulaufarmatur 2 fließt zusätzliches Wasser in die Wanne 1. Der Drucksensor 5 erfasst vorzugsweise kontinuierlich die aktuelle Höhe des Wasserstandes W und sendet ein entsprechendes Messsignal an die Mess- und Steuerungseinrichtung, die in Abhängigkeit der erfassten Wasserstandshöhe W das Stellglied zur Betätigung des Bodenablaufventils steuert. Erreicht die Höhe des Wasserstandes W die vorgegebene oder eingestellte maximale Wasserstandshöhe h max oder wird letztere übertroffen, bewirkt die Mess- und Steuerungseinrichtung, dass das Stellglied das Bodenablaufventil öffnet. Hierdurch ist ein zuverlässiger Überlaufschutz gewährleistet. Das Öffnen des Bodenablaufventils ist in Fig. 1 durch den am Ventilkörper 4 eingezeichneten nach oben weisenden Pfeil angedeutet. Die über das Einstellmittel vorgegebene maximale Wasserstandhöhe h max kann beispielsweise ca. 400 mm betragen.
In Fig. 2 ist eine Situation skizziert, in welcher das Bodenablaufventil geöffnet ist und der Wasserstand W in der Badewanne dementsprechend sinkt. Der Drucksensor 5 erfasst weiterhin die aktuelle Höhe des Wasserstandes W und sendet ein entsprechendes Messsignal an die Mess- und Steuerungseinrichtung. Fällt der Wasserstand W auf oder unter die vorgegebene oder eingestellte minimale Wasserstandshöhe h min, bewirkt die Mess- und Steuerungseinrichtung, dass das Stellglied das Bodenablaufventil schließt. Das Schließen des Ablaufventils ist in Fig. 2 durch den am Ventilkörper 4 eingezeichneten, nach unten weisenden Pfeil angedeutet. Die über das Einstellmittel vorgegebene minimale Wasserstandshöhe h min kann beispielsweise ca. 300 mm betragen.
Die erfindungsgemäße Vorrichtung stellt somit in Kombination mit dem Bodenablaufventil einen wirksamen Überlaufschutz dar und ermöglicht es, überlaufsichere Badewannen ohne Überlaufbohrung in der Wannenseitenwand und ohne an der Außenseite der Wannenwand angeordnetes Überlaufrohr herzustellen. Die in der Zeichnung skizzierte Badewanne 1 weist dementsprechend in ihrer Wannenseitenwand keine Überlauföffnung (Überlaufbohrung) auf.
Die Ausbildung der Leitung 6 als Bypass hat den Vorteil, dass die Leitung 6 beim Öffnen des Ablaufventils von abfließendem Wasser durchspült und somit gereinigt wird. Zudem ist die Leitung 6 für Reinigungszwecke über die im Boden der Wanne 1 angeordnete Öffnung 7 gut zugänglich.In Fig. 1 is sketched a situation in which the floor drain valve of the bathtub is closed. In the bath 1 water is already filled. The pressure sensor 5 preferably continuously detects the current height of the water level W and sends a corresponding measurement signal to the measuring and control device which controls the actuator for actuating the floor drain valve in dependence on the detected water level height W. , If the height of the water level W reaches the preset or set maximum water level h max or the latter is exceeded, the measuring and control device causes the actuator to open the floor drain valve opens. This ensures a reliable overflow protection. The opening of the floor drain valve is in Fig. 1 indicated by the valve body 4 shown upwardly pointing arrow. The predetermined by the adjustment maximum water level h max, for example, be about 400 mm.
In Fig. 2 is outlined a situation in which the floor drain valve is open and the water level W in the bathtub drops accordingly. The pressure sensor 5 further detects the current height of the water level W and sends a corresponding measurement signal to the measuring and control device. If the water level W falls to or below the predetermined or set minimum water level height h min, the measuring and control device causes the actuator to close the floor drain valve. The closing of the drain valve is in Fig. 2 indicated by the valve body 4 shown, pointing down arrow. The predetermined by the adjustment minimum water level height h min can be, for example, about 300 mm.
The device according to the invention thus represents an effective overflow protection in combination with the floor drain valve and makes it possible to produce overflow-proof baths without overflow bore in the tub side wall and without arranged on the outside of the tub wall overflow pipe. The bath 1 sketched in the drawing accordingly has no overflow opening (overflow bore) in its tub side wall.
The formation of the line 6 as a bypass has the advantage that the line 6 is flushed when opening the drain valve of draining water and thus cleaned. In addition, the line 6 is easily accessible for cleaning purposes via the arranged in the bottom of the tub 1 opening 7.

Die Öffnung 7 mündet an der Oberseite einer in eine Bodenablauföffnung 3 der Wanne 1 eingesetzen Ablaufgarnitur. Insbesondere kann die Öffnung 7 unterhalb und in Abstand von einer den Ventilkörper 4 überdeckenden Haube oder Sichtblende angeordnet sein.The opening 7 opens at the top of a set in a floor drain opening 3 of the tub 1 expiration set. In particular, the opening 7 be arranged below and at a distance from a valve body 4 covering hood or screen.

Die Leitung 6, an welcher der Drucksensor 5 angeordnet ist, ist vorzugsweise so ausgebildet, dass sich beim Füllen des Beckens bzw. der Badewanne 1 mit Wasser vor dem Drucksensor eine Luftblase bildet.The line 6, on which the pressure sensor 5 is arranged, is preferably designed so that when filling the basin or the bath 1 with water in front of the pressure sensor forms an air bubble.

Eine weitere Ausgestaltung der Vorrichtung besteht darin, dass die elektronische Mess- und Steuerungseinrichtung hergerichtet ist, das Drucksensorsignal und den Steuerstrom des Stellgliedes, zum Beispiel den Motorstrom eines den Ventilkörper 4 betätigenden Stellmotors auf Plausibilität zu prüfen. Vorzugsweise weist die elektronische Mess- und Steuerungseinrichtung einen Prozessor auf. Die Funktion des Prozessors wird überwacht, beispielsweise mittels eines sogenannten "Watchdog" oder einer anderen Funktionsüberwachungskomponente. Ferner ist vorgesehen, dass die elektronische Mess- und Steuerungseinrichtung bei einer Fehlfunktion des Prozessors und/oder des Drucksensors 5 und/oder des Stellgliedes ein akustisches und/oder optisches Signal abgibt.Another embodiment of the device is that the electronic measuring and control device is prepared to check the pressure sensor signal and the control current of the actuator, for example, the motor current of the valve body 4 actuated servomotor for plausibility. The electronic measuring and control device preferably has a processor. The function of the processor is monitored, for example by means of a so-called "watchdog" or another function monitoring component. It is further provided that the electronic measuring and control device emits an acoustic and / or optical signal in case of malfunction of the processor and / or the pressure sensor 5 and / or the actuator.

Um auch bei Stromausfall eine zuverlässige Funktion der Vorrichtung sicherstellen, sind die elektronische Mess- und Steuerungseinrichtung und/oder das Stellglied mit einem Akkumulator (nicht gezeigt) versehen. Vorzugsweise ist die elektronische Mess- und Steuerungseinrichtung dabei mit einer Vorrichtung versehen, die den Ladezustand des Akkumulators überwacht und bei Unterschreiten eines kritischen Ladezustandes ein Öffnen des Bodenablaufventils auslöst und/oder ein akustisches und/oder optisches Signal abgibt.In order to ensure reliable operation of the device even in the event of a power failure, the electronic measuring and control device and / or the actuator are provided with an accumulator (not shown). Preferably, the electronic measuring and control device is provided with a device which monitors the state of charge of the accumulator and triggers opening of the floor drain valve falls below a critical state of charge and / or emits an acoustic and / or optical signal.

Die Ausführung der Erfindung ist nicht auf das in der Zeichnung dargestellte Ausführungsbeispiel beschränkt. Vielmehr sind zahlreiche Varianten denkbar, die auch bei von dem gezeigten Beispiel abweichender Gestaltung von der in den beiliegenden Ansprüchen angegebenen Erfindung Gebrauch machen. Insbesondere liegt es im Rahmen der Erfindung, dass die Mess- und Steuerungseinrichtung mit einem Zeitglied, vorzugsweise einem einstellbaren Zeitglied versehen ist, welches nach automatischem Öffnen des Bodenablaufventils aufgrund einer vom Drucksensor 5 erfassten Wasserstandshöhe, die einer vorgegebenen maximalen Wasserstandhöhe h max entspricht oder diese übertrifft, bei Ablauf einer definierten Zeitdauer, ein Schließen des Bodenablaufventils bewirkt.The embodiment of the invention is not limited to the embodiment shown in the drawing. On the contrary, numerous variants are conceivable which make use of the invention specified in the appended claims, even if the design deviates from the example shown. In particular, it is within the scope of the invention that the measuring and control device with a timer, preferably an adjustable timer is provided, which causes after automatic opening of the floor drain valve due to a detected by the pressure sensor 5 water level, which corresponds to a predetermined maximum water level h max or exceeds this, at the end of a defined period of time, closing the floor drain valve.

Claims (13)

  1. Drain set having a bottom drainage valve, and device for automatically actuating the bottom drainage valve which has a valve seat surface (8) and a valve body (4), for a sanitary basin (1), in particular for a bathtub, subject to the height of the water level (W) in the sanitary basin, wherein the device has at least one pressure sensor (5) for detecting the height of the water level in the sanitary basin, an electronic measuring and control means which is arranged to detect measurement signals transmitted thereto from the pressure sensor (5), and an actuator for opening and/or closing the bottom drainage valve, wherein the pressure sensor (5) is arranged on a line (6), and wherein the actuator is controlled by the measuring and control means subject to the height of the water level detected by the pressure sensor (5), characterised in that the line (6) on which the pressure sensor (5) is arranged leads to a bottom opening (7) for the basin, which bottom opening is integrated into the drain set, the end (6.1) of the line (6) remote from the bottom opening (7) leading to the valve seat surface (8) of the bottom drainage valve, and this end (6.1) of the line (6) being sealed in a water-tight manner by the valve body (4) of the bottom drainage valve when the bottom drainage valve is closed.
  2. Drain set and device according to Claim 1, characterised in that the measuring and control means is provided with at least one adjustment means by means of which a maximum height (h max) of the water level or a magnitude proportional thereto is adjustable.
  3. Drain set and device according to Claim 1 or 2, characterised in that the measuring and control means is provided with a time function element, preferably an adjustable time function element which is arranged to cause the bottom drainage valve to close once a defined period of time has elapsed after the bottom drainage valve has opened automatically due to a height of the water level (W) which is detected by the pressure sensor (5) and which corresponds to or exceeds a predetermined maximum height of the water level.
  4. Drain set and device according to any one of Claims 1 to 3, characterised in that the measuring and control means is provided with at least one adjustment means by means of which a minimum height (h min) of the water level or a magnitude proportional thereto, at which the bottom drainage valve is closed by the actuator, is adjustable.
  5. Drain set and device according to any one of Claims 1 to 4, characterised in that the electronic measuring and control means is arranged to check the plausibility of a measurement signal, emitted by the pressure sensor (5), and of a control current activating the actuator.
  6. Drain set and device according to any one of Claims 1 to 5, characterised in that the electronic measuring and control means has a processor and a component which monitors the operation of the processor.
  7. Drain set and device according to Claim 6, characterised in that the electronic measuring and control means is configured such that it emits an acoustic and/or optical signal in the event of a malfunction of the processor.
  8. Drain set and device according to any one of Claims 1 to 7, characterised in that the electronic measuring and control means is configured such that it emits an acoustic and/or optical signal in the event of a malfunction of the pressure sensor (5) and/or of the actuator.
  9. Drain set and device according to any one of Claims 1 to 8, characterised in that the electronic measuring and control means and/or the actuator is/are provided with an accumulator which ensures the opening of the bottom drainage valve in the event of a power failure.
  10. Drain set and device according to Claim 9, characterised in that the electronic measuring and control means is provided with a device which monitors the charge state of the accumulator and, if the accumulator falls below a predetermined charge state, initiates an opening of the bottom drainage valve and/or emits an acoustic and/or an optical signal.
  11. Drain set and device according to any one of Claims 1 to 10, characterised in that the line (6) on which the pressure sensor (5) is arranged, is configured such that an air bubble forms in front of the pressure sensor (5) when the sanitary basin (1) is filled with water.
  12. Bathtub (1), preferably a free-standing bathtub, having a drain set and a device according to any one of Claims 1 to 11.
  13. Bathtub (1) according to Claim 12, characterised in that the side wall thereof is formed as a side wall without an overflow opening.
EP15157568.5A 2014-03-11 2015-03-04 Device for automatically actuating a floor drainage valve at a sanitary basin, in particular a bathtub, and bath tub with such a device Active EP2918739B1 (en)

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US11064844B2 (en) 2016-06-01 2021-07-20 Maax Bath Inc. Water management system and method for managing water

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EP2918739A1 (en) 2015-09-16
TR201815586T4 (en) 2018-11-21
PL2918739T3 (en) 2019-01-31
DE202014002052U1 (en) 2015-06-12

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