EP2765249B1 - Outlet fitting for a toilet cistern - Google Patents
Outlet fitting for a toilet cistern Download PDFInfo
- Publication number
- EP2765249B1 EP2765249B1 EP13154398.5A EP13154398A EP2765249B1 EP 2765249 B1 EP2765249 B1 EP 2765249B1 EP 13154398 A EP13154398 A EP 13154398A EP 2765249 B1 EP2765249 B1 EP 2765249B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- outlet
- breakthrough
- lower region
- sealing element
- outflow pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 28
- 238000011010 flushing procedure Methods 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 32
- 239000002699 waste material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/14—Noise-reducing means combined with flushing valves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
- E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
- E03D1/35—Flushing valves having buoyancy
Definitions
- the present invention relates to a drain fitting for a cistern according to the preamble of claim 1, as known from EP 1 854 926 is known.
- flushing can be triggered by lifting the overflow pipe.
- the lifting of the overflow pipe is usually carried out with an actuating device having, for example, a button.
- an actuating device having, for example, a button.
- the water stored in the cistern passes through gravity through the outlet opening in a drain pipe and finally into a toilet bowl or urinal.
- the purge is interrupted by the overflow pipe falling onto the valve seat.
- Such a flushing process is associated with noises that have different causes.
- the drain fitting for a cistern is provided with a valve seat, which is arranged upstream of an outlet opening seen in the flow direction, and with a cooperating with this valve seat sealing element of an overflow pipe, which can be moved to trigger a flush up , educated.
- the overflow tube comprises a circumferential around a central axis pipe wall, an inlet opening and an outlet opening. In the lower part of the overflow pipe at least one breakthrough is arranged in the pipe wall.
- the arrangement of the at least one breakthrough has the advantage that the length of the air column can be reduced at the overflow pipe or with the length of the overflow pipe remains limited, whereby the minimum natural frequency of the overflow pipe can be increased.
- the air column can therefore not expand to a resonance-critical length.
- By increasing the minimum natural frequency there is no frequency overlay with the frequency band of the excitation frequency, which is generated by the running rinse water.
- the resonances and the Gurgelge Hursche resulting from the resonances can be avoided.
- By the breakthroughs so a secondary flow is allowed, which limits the air column in the overflow pipe accordingly. This secondary flow also has a supporting effect on the volume flow and can also prevent water from rising very high at the start of the flushing process or reducing the level of the increase.
- the lower region extends from the outlet opening of the overflow pipe to the sealing element spaced from the outlet opening, wherein the at least one opening is arranged between the pipe outlet and the sealing element.
- the at least one breakthrough is thus below the sealing element.
- the at least one breakthrough extends completely through the pipe wall of the overflow pipe.
- the at least one breakthrough is arranged in addition to the outlet opening.
- the lower region comprises the lower part of the inner space and the pipe wall of the overflow pipe, the outlet opening and the at least one opening.
- the lower region consists of the lower part of the inner space and the pipe wall of the overflow pipe, the Outlet opening and the at least one breakthrough.
- the aperture extends along an axis which is substantially perpendicular to the central axis of the overflow tube.
- the axis along which the aperture extends is substantially perpendicular to the surface of the tube wall through which the aperture extends.
- the overflow pipe has a conical section extending at least partially over the lower region, the outer diameter of the overflow pipe decreasing from the sealing element to the outlet opening of the overflow pipe.
- the overflow pipe thus runs conically in the lower regions at least in sections.
- the conical design has the advantage that buoyancy acts on the overflow pipe by the water flowing past during the flushing.
- the overflow tube in the lower region between the sealing element and the conical section, extends cylindrically over a cylindrical section.
- the lower region after the sealing element has a cylindrical portion and a conical portion, the cylindrical portion lying between the conical portion and the sealing member.
- the at least one opening is arranged in the cylindrical section and / or in the conical section.
- the at least one aperture may also extend over the conical and cylindrical portions.
- a plurality of openings at regular intervals around the circumference are arranged in the overflow pipe.
- the at least one breakthrough has a round cross-section.
- the breakthrough can also be referred to as opening or bore.
- the at least one aperture may also have a slot-like cross-section.
- the lower portion extends downwardly into one after the valve seat arranged outlet nozzle when the sealing element rests on the valve seat.
- the outlet nozzle preferably has a rounded inlet region in the region immediately after the valve seat.
- FIG. 1 shows an inventive gowngarnitur 1, which is fixed in a conventional manner in an opening 23 of a cistern 3. Of the known cistern 3 only one area of the bottom is shown here. It is designed in a known manner so that it can absorb water 26 up to a level 22.
- An overflow pipe 11 has at an upper end an inlet opening 9, which is above the level 22 of the water 26.
- the overflow pipe 11 is liftably mounted in a housing 2 and has a known float 12 and a closing weight 21. To trigger a flush, the overflow pipe 11 is raised with an actuating device, not shown here. In of the FIG. 1 the overflow pipe 11 is shown in the raised state.
- a sealing element 4 is lifted from a valve seat 13, so that water 26 through the open valve according to the FIG. 2 can drain.
- the sealing element 4 is in communication with the overflow pipe 11 and the valve seat 13 is arranged on an outlet connection 8.
- the water 26 in this case flows through lateral openings 7 of the housing 2 in the outlet connection 8 and finally by a not shown with the outlet connection 8 in connection standing outgoing pipe in the Hopkins Remodelenden and not shown sanitary article.
- About the overflow pipe 11 can reach the outlet pipe 8 in a possible defect of the filling valve of the cistern, the rinse water so that it can not come to an overflow of the cistern.
- this flow is indicated by arrows 15.
- These arrows 15 correspond to the main flow. A portion of the water 26 of this main flow passes from below into the overflow pipe 11 and rises in this upwards.
- FIG. 2 showing a waste set without the feature essential to the invention
- the situation is shown before the complete emptying of the cistern.
- an air cone 5 is typically formed in the second half of the rinsing process, because air is sucked down through the overflow pipe 11 by the flow conditions.
- the rinse water rises in the overflow pipe 11. For example, to a level 18.
- the rinse water flows from the overflow pipe 11 in the direction of the outlet nozzle, wherein the drainage takes place at a higher speed as the drainage of the rinse water in the cistern.
- the drain fitting 1 according to the invention for a flushing cistern essentially comprises a valve seat 13, which, viewed in the flow direction, is arranged in front of an outlet opening 27.
- the valve seat 13 cooperates with a sealing element 4 of the overflow pipe 11.
- the overflow tube 11 is moved upwards, so that the contact between the sealing element 4 and the valve seat 13 is released. This position is shown in the figures. In the closed position, the sealing element 4 rests on the valve seat 13, so that no water can get out of the cistern through the outlet opening.
- the overflow tube 11 has a circumferential around a central axis M tube wall 14, an inlet opening 9 and an outlet opening 10.
- the circumferential tube wall 14 defines an interior space 24, which is accessible through said inlet opening 9 and the said outlet opening 10.
- the opening 16 has the function of reducing the height of the air column in the interior 24 of the overflow pipe 11.
- Rinse water penetrates through the opening 16 in the interior 24 in the lower region 17, wherein the area between the sealing element 4 and the valve seat 13 more or less complete filled with water, as in the FIG. 3 is shown. Due to the arrangement of the opening 16, the formation of an air cone 5 according to the FIG.
- the lower region 17 extends from the outlet opening 10 to the sealing element 4.
- the sealing element 4 is spaced from the outlet opening 10.
- the at least one opening 16 is, as already mentioned above, in this lower area 17. Thus, the at least one breakthrough between the tube outlet 10 and the sealing element. 4
- the at least one opening 16 extends completely through the pipe wall 14 of the overflow pipe 1 therethrough. Thus, an opening is provided which opens from the outside, outside the interior 24 of the overflow pipe 11, into the interior 24 of the overflow pipe 1.
- the opening 16 extends along an axis A.
- the axis A is substantially perpendicular to the central axis M of the overflow pipe 11.
- the axis A can also extend at an angle to the central axis M.
- the axis A is perpendicular to the surface through which the aperture extends.
- the at least one opening 16 is therefore a laterally arranged opening 16.
- this opening 16 runs along an axis A that is transverse to the center axis M.
- the overflow pipe 11 has in the lower region 17 via a conical portion 19 extending at least partially over the lower region.
- the lower region 17 is conical at least in sections.
- the overflow pipe 11 here has a cylindrical section 20.
- the lower portion 17 is thus formed by the conical portion 19 and the cylindrical portion 20, wherein the conical portion 19 between the cylindrical portion 20 and the sealing element 4 is located.
- the at least one opening 16 is arranged here in the cylindrical section 20.
- the opening 16 may also be arranged in the conical section 19. It is also conceivable that the aperture extends from the cylindrical portion 20 into the conical portion 19.
- the conical portion 19 creates by its shape buoyancy on the overflow pipe 11 so that it can be kept open with less force. In addition, the flow in the Area positively influenced during the flushing process.
- a plurality of apertures 16 are distributed at regular intervals around the circumference in the overflow pipe 11.
- four circular openings 16, which may also be referred to as openings, are arranged.
- the four breakthroughs are spaced at an angle of 90 degrees to each other.
- the shape of the breakthrough 16 does not play a decisive role in the function. It is important that the breakthrough extends through the pipe wall 14 therethrough. But are particularly preferred breakthroughs with a circular cross-section, as well as in the FIG. 1 will be shown. But it is also conceivable that the breakthrough, for example, has a slit-like cross-section. Also, the arrangement of many small openings is conceivable.
- the outlet nozzle 8 has a substantially cylindrical configuration.
- This rounded edge 25 has a particular advantage on the water flow along the arrow 15 this particular in connection with the conical section 17th
- the overflow pipe 11 has a diameter of 28.5 mm in the present example.
- the circular openings 16 here have a diameter of 6 mm. Other dimensions are also conceivable.
- FIG. 4 is the natural frequency E1 of the drain set without the invention essential feature and the natural frequency E2 of the drain set with the feature essential to the invention shown as a function of time.
- the time is shown on the X-axis and the frequency is shown on the Y-axis.
- the exciter frequency band EB of the running water At T0 the cistern is full and at T1 the cistern is empty.
- the exciter frequency band EB of the running water The natural frequencies decrease due to the leakage of water from the interior 14 of the overflow pipe 11 with decreasing water level in the interior 14.
- the natural frequency E1 decreases with increasing emptying so that it falls into the exciter frequency band EB, which then comes to said Gurgelge syndromeschen.
- the natural frequency is determined by the height H1 of the air column, which is determined according to the FIG. 2 extends from the tip 6 of the air cone 5 up to the inlet opening 9. Due to the feature essential to the invention, ie the opening 16, the height H2 of the air column can now be reduced. As a result, the characteristic of the natural frequency E2 is changed. The minimum natural frequency thus increases that the minimum natural frequency E2 no longer enters the excitation frequency band EB, and thus prevents the formation of a resonance.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Epidemiology (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
Die vorliegende Erfindung betrifft eine Ablaufgarnitur für einen Spülkasten nach dem Oberbegriff von Anspruch 1, wie sie aus der
Bei den allgemein bekannten Ablaufgarnituren der genannten Art kann eine Spülung durch Anheben des Überlaufrohres ausgelöst werden. Das Anheben des Überlaufrohres erfolgt in der Regel mit einer Betätigungsvorrichtung, die beispielsweise eine Taste aufweist. Nach der Auslösung einer Spülung gelangt das im Spülkasten gelagerte Wasser infolge der Gravitation durch die Auslauföffnung in ein Ablaufrohr und schliesslich in eine WC-Schüssel oder in ein Urinal. Die Spülung wird unterbrochen, indem das Überlaufrohr auf den Ventilsitz fällt. Ein solcher Spülvorgang ist mit Geräuschen verbunden, die unterschiedliche Ursachen besitzen. Um diese Geräusche zu vermindern, ist bei der Ablaufgarnitur nach der
In der
Zudem können laute Gurgelgeräusche entstehen, welche durch das Ablösen der Wasserströmung am Konus in Kombination mit der Resonanzfrequenz der Luftsäule im Überlaufrohr oder Standrohr erzeugt werden.In the generally known drain fittings of the type mentioned flushing can be triggered by lifting the overflow pipe. The lifting of the overflow pipe is usually carried out with an actuating device having, for example, a button. After the release of a flush, the water stored in the cistern passes through gravity through the outlet opening in a drain pipe and finally into a toilet bowl or urinal. The purge is interrupted by the overflow pipe falling onto the valve seat. Such a flushing process is associated with noises that have different causes. To reduce these noises is in the pop-up according to the
In the
In addition, loud gurgling noises can occur, which are generated by the detachment of the water flow at the cone in combination with the resonance frequency of the air column in the overflow pipe or standpipe.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Ablaufgarnitur anzugeben, welche die Nachteile des Standes der Technik überwindet. Es sollen dabei die Geräusche weiter bzw. weitgehend minimiert werden. Weiter soll die Ablaufgarnitur einfacher herzustellen sein.
Diese Aufgabe löst die Ablaufgarnitur nach Anspruch 1. Die Ablaufgarnitur für einen Spülkasten ist mit einem Ventilsitz, der in Strömungsrichtung gesehen vor einer Auslauföffnung angeordnet ist, und mit einem mit diesem Ventilsitz zusammenarbeitenden Dichtungselement eines Überlaufrohres, das zum Auslösen einer Spülung nach oben bewegt werden kann, ausgebildet. Das Überlaufrohr umfasst eine um eine Mittelachse umlaufende Rohrwandung, eine Eintrittsöffnung und eine Austrittsöffnung. Im unteren Bereich des Überlaufrohrs ist in der Rohrwandung mindestens ein Durchbruch angeordnet. Die Anordnung des mindestens einen Durchbruchs hat den Vorteil, dass die Länge der Luftsäule am Überlaufrohr reduziert werden kann oder sie mit der Länge des Überlaufrohrs begrenzt bleibt, wodurch die minimale Eigenfrequenz des Überlaufrohrs erhöht werden kann. Die Luftsäule kann sich also nicht auf eine resonanzkritische Länge erweitern. Durch die Erhöhung der minimalen Eigenfrequenz kommt es nicht zu einer Frequenzüberlagerung mit dem Frequenzband der Erregerfrequenz, welche durch das ablaufende Spülwasser generiert wird. Somit lassen sich die Resonanzen und die von den Resonanzen resultierenden Gurgelgeräusche vermeiden.
Durch die Durchbrüche wird also eine Sekundärströmung zugelassen, welche die Luftsäule im Überlaufrohr entsprechend begrenzt. Diese Sekundärströmung wirkt zudem unterstützend auf den Volumenstrom und kann zudem verhindern, dass Wasser bei Beginn des Spülvorgangs in das Überlaufrohr sehr hoch ansteigt bzw. die Höhe des Ansteigens reduzieren.
Zudem wird ein sehr einfach herzustellendes Element bereitgestellt, welches die allgemeine Anfälligkeit auf Geräusche einer solchen Ablaufgarnitur stark verbessert. Gegenüber der
Der untere Bereich erstreckt sich von der Austrittsöffnung des Überlaufrohrs bis zum von der Austrittsöffnung beabstandet liegenden Dichtungselement, wobei der mindestens eine Durchbruch zwischen dem Rohraustritt und dem Dichtungselement angeordnet ist. Der mindestens eine Durchbruch liegt also unterhalb des Dichtungselementes.
Der mindestens eine Durchbruch erstreckt sich vollständig durch die Rohrwandung des Überlaufrohrs hindurch.
Der mindestens eine Durchbruch ist zusätzlich zur Austrittsöffnung angeordnet. Folglich umfasst der untere Bereich den im unteren Bereich liegenden Teil des Innenraums und der Rohrwandung des Überlaufrohrs, die Austrittsöffnung und den mindestens einen Durchbruch. Besonders bevorzugt besteht der untere Bereich aus dem im unteren Bereich liegenden Teil des Innenraums und der Rohrwandung des Überlaufrohrs, der Austrittsöffnung und dem mindestens einen Durchbruch.
Vorzugsweise erstreckt sich der Durchbruch entlang einer Achse, welche im Wesentlichen rechtwinklig zur Mittelachse des Überlaufrohrs verläuft. Alternativ steht die Achse, entlang welcher der Durchbruch verläuft, im Wesentlichen rechtwinklig auf die Fläche der Rohrwandung, durch welche der Durchbruch sich hindurch erstreckt. Das Überlaufrohr weist im unteren Bereich einen sich mindestens teilweise über den unteren Bereich erstreckenden konischen Abschnitt auf, wobei der Aussendurchmesser des Überlaufrohrs vom Dichtungselement zur Austrittsöffnung des Überlaufrohrs abnimmt. Das Überlaufrohr verläuft also im unteren Bereiche mindestens abschnittsweise konisch. Die konische Ausbildung hat den Vorteil, dass durch das bei der Spülung vorbeiströmende Wasser ein Auftrieb auf das Überlaufrohr wirkt.
Vorzugsweise verläuft im unteren Bereich zwischen dem Dichtungselement und dem konischen Abschnitt das Überlaufrohr über einen zylindrischen Abschnitt zylindrisch. Der untere Bereich weist also in einer bevorzugten Ausgestaltung nach dem Dichtungselement einen zylindrischen Abschnitt und einen konischen Abschnitt auf, wobei der zylindrische Abschnitt zwischen dem konischen Abschnitt und dem Dichtungselement liegt.
Vorzugsweise ist der mindestens eine Durchbruch im zylindrischen Abschnitt und/oder im konischen Abschnitt angeordnet. Der mindestens eine Durchbruch kann sich auch über den konischen und den zylindrischen Abschnitt erstrecken.
Vorzugsweise sind mehrere Durchbrüche in regelmässigen Abständen um den Umfang verteilt im Überlaufrohr angeordnet.
Besonders bevorzugt weist der mindestens eine Durchbruch einen runden Querschnitt auf. Der Durchbruch kann auch als Öffnung oder Bohrung bezeichnet werden. Alternativ kann der mindestens eine Durchbruch auch einen schlitzartigen Querschnitt aufweisen.
Vorzugsweise erstreckt sich der untere Bereich nach unten in einen nach dem Ventilsitz angeordneten Auslaufstutzen, wenn das Dichtungselement auf dem Ventilsitz aufliegt.Based on this prior art, the invention has for its object to provide a drain fitting, which overcomes the disadvantages of the prior art. It should be the noise continues to be largely minimized. Next, the drain set to be easier to produce.
This object is achieved by the drain fitting according to
By the breakthroughs so a secondary flow is allowed, which limits the air column in the overflow pipe accordingly. This secondary flow also has a supporting effect on the volume flow and can also prevent water from rising very high at the start of the flushing process or reducing the level of the increase.
In addition, a very simple to produce element is provided, which greatly improves the general susceptibility to noises of such a waste set. Opposite the
The lower region extends from the outlet opening of the overflow pipe to the sealing element spaced from the outlet opening, wherein the at least one opening is arranged between the pipe outlet and the sealing element. The at least one breakthrough is thus below the sealing element.
The at least one breakthrough extends completely through the pipe wall of the overflow pipe.
The at least one breakthrough is arranged in addition to the outlet opening. Consequently, the lower region comprises the lower part of the inner space and the pipe wall of the overflow pipe, the outlet opening and the at least one opening. Particularly preferably, the lower region consists of the lower part of the inner space and the pipe wall of the overflow pipe, the Outlet opening and the at least one breakthrough.
Preferably, the aperture extends along an axis which is substantially perpendicular to the central axis of the overflow tube. Alternatively, the axis along which the aperture extends is substantially perpendicular to the surface of the tube wall through which the aperture extends. In the lower region, the overflow pipe has a conical section extending at least partially over the lower region, the outer diameter of the overflow pipe decreasing from the sealing element to the outlet opening of the overflow pipe. The overflow pipe thus runs conically in the lower regions at least in sections. The conical design has the advantage that buoyancy acts on the overflow pipe by the water flowing past during the flushing.
Preferably, in the lower region between the sealing element and the conical section, the overflow tube extends cylindrically over a cylindrical section. Thus, in a preferred embodiment, the lower region after the sealing element has a cylindrical portion and a conical portion, the cylindrical portion lying between the conical portion and the sealing member.
Preferably, the at least one opening is arranged in the cylindrical section and / or in the conical section. The at least one aperture may also extend over the conical and cylindrical portions.
Preferably, a plurality of openings at regular intervals around the circumference are arranged in the overflow pipe.
Particularly preferably, the at least one breakthrough has a round cross-section. The breakthrough can also be referred to as opening or bore. Alternatively, the at least one aperture may also have a slot-like cross-section.
Preferably, the lower portion extends downwardly into one after the valve seat arranged outlet nozzle when the sealing element rests on the valve seat.
Der Auslaufstutzen weist vorzugsweise im Bereich unmittelbar nach dem Ventilsitz einen gerundeten Einlaufbereich auf.The outlet nozzle preferably has a rounded inlet region in the region immediately after the valve seat.
Weitere Ausführungsformen sind in den abhängigen Ansprüchen angegeben.Further embodiments are given in the dependent claims.
Bevorzugte Ausführungsformen der Erfindung werden im Folgenden anhand der Zeichnungen beschrieben, die lediglich zur Erläuterung dienen und nicht einschränkend auszulegen sind. In den Zeichnungen zeigen:
- Fig. 1
- eine Schnittansicht einer Ablaufgarnitur gemäss einer Ausführungsform der Erfindung;
- Fig. 2
- eine Schnittansicht einer Ablaufgarnitur ohne die erfindungswesentlichen Merkmale mit eingezeichneten Wasserstand im Spülkasten;
- Fig. 3
- eine Schnittansicht der Ablaufgarnitur nach der
Fig. 1 mit eingezeichnetem Wasserstand; und - Fig. 4
- eine schematische Darstellung der Frequenzentwicklung beim Ablauf des Spülwasser durch die
Ablaufgarnitur der Figur 1 und der .Figur 2
- Fig. 1
- a sectional view of a pop-up waste according to an embodiment of the invention;
- Fig. 2
- a sectional view of a pop-up without the invention essential features with marked water level in the cistern;
- Fig. 3
- a sectional view of the waste according to the
Fig. 1 with marked water level; and - Fig. 4
- a schematic representation of the frequency development in the course of the rinse water through the drain fitting of
FIG. 1 and theFIG. 2 ,
Die
In der
In der
Mit Bezug auf die
Die erfindungsgemässe Ablaufgarnitur 1 für einen Spülkasten umfasst im Wesentlichen einen Ventilsitz 13, der in Strömungsrichtung gesehen vor einer Auslauföffnung 27 angeordnet ist. Der Ventilsitz 13 arbeitet mit einem Dichtungselement 4 des Überlaufrohrs 11 zusammen. Zum Auslösen einer Spülung wird das Überlaufrohr 11 nach oben bewegt, so dass der Kontakt zwischen dem Dichtungselement 4 und dem Ventilsitz 13 aufgehoben wird. Diese Stellung wird in den Figuren gezeigt. In der Verschlussstellung liegt das Dichtungselement 4 auf dem Ventilsitz 13 auf, sodass kein Wasser aus dem Spülkasten durch die Auslauföffnung gelangen kann.The
Das Überlaufrohr 11 weist eine sich um eine Mittelachse M umlaufende Rohrwandung 14, eine Eintrittsöffnung 9 und eine Austrittsöffnung 10 auf. Die umlaufende Rohrwandung 14 definiert dabei einen Innenraum 24, welcher durch besagte Eintrittsöffnung 9 und die besagte Austrittsöffnung 10 zugänglich ist. Im unteren Bereich 17 des Überlaufrohrs 11 ist in der Rohrwandung 14 mindestens ein Durchbruch 16 angeordnet. Der Durchbruch 16 hat die Funktion der Reduzierung der Höhe der Luftsäule im Innenraum 24 des Überlaufrohrs 11. Spülwasser dringt durch den Durchbruch 16 in den Innenraum 24 im unteren Bereich 17 ein, wobei der Bereich zwischen dem Dichtungselement 4 und den Ventilsitz 13 mehr oder weniger vollständig mit Wasser gefüllt, so wie dies in der
Der untere Bereich 17 erstreckt sich von der Austrittsöffnung 10 bis hin zum Dichtungselement 4. Das Dichtungselement 4 liegt dabei beabstandet zur Austrittsöffnung 10. Der mindestens eine Durchbruch 16 liegt, wie oben bereits erwähnt, in diesem unteren Bereich 17. Somit liegt der mindestens eine Durchbruch zwischen dem Rohraustritt 10 und dem Dichtungselement 4.The
Prinzipiell kann gesagt werden, dass je höher der mindestens eine Durchbruch 16 liegt, ein besseres Resultat erzielt werden kann, weil die minimale Eigenfrequenz entsprechend erhöht wird.In principle, it can be said that the higher the at least one
Der mindestens eine Durchbruch 16 erstreckt sich vollständig durch die Rohrwandung 14 des Überlaufrohres 1 hindurch. Es wird also ein Durchbruch bereitgestellt, welcher von der Aussenseite, ausserhalb des Innenraums 24 des Überlaufrohrs 11, in den Innenraum 24 des Überlaufrohrs 1 mündet.The at least one
Der Durchbruch 16 erstreckt sich entlang einer Achse A. Die Achse A liegt im Wesentlichen rechtwinklig zur Mittelachse M des Überlaufrohrs 11. Alternativ kann die Achse A auch Winklig zur Mittelachse M verlaufen. Besonders bevorzugt liegt die Achse A rechtwinklig auf die Fläche, durch welche der Durchbruch sich hindurch erstreckt. Es handelt sich beim mindestens einem Durchbruch 16 also um einen seitlich angeordneten Durchbruch 16. Vorzugsweise verläuft dieser Durchbruch 16 entlang einer quer zur Mittelachse M stehenden Achse A.The
Von den
Im unteren Bereich 17 zwischen dem Dichtungselement 4 und dem konischen Abschnitt 19 weist das Überlaufrohr 11 hier einen zylindrischen Abschnitt 20 auf. In der vorliegenden Ausführungsform wird der untere Bereich 17 also durch den konischen Abschnitt 19 und den zylindrischen Abschnitt 20 ausgebildet, wobei der konische Abschnitt 19 zwischen dem zylindrischen Abschnitt 20 und dem Dichtungselement 4 liegt.In the
Der mindestens eine Durchbruch 16 ist hier im zylindrischen Abschnitt 20 angeordnet. Alternativ oder zusätzlich kann der Durchbruch 16 auch im konischen Abschnitt 19 angeordnet sein. Auch ist es denkbar, dass sich der Durchbruch vom zylindrischen Abschnitt 20 in den konischen Abschnitt 19 hineinerstreckt.The at least one
Der konische Abschnitt 19 erzeugt durch seine Form einen Auftrieb auf das Überlaufrohr 11, sodass es mit weniger Kraft offen gehalten werden kann. Zudem wird die Strömung im Bereich beim Spülvorgang positiv beeinflusst.The
Vorzugsweise sind mehrere Durchbrüche 16 in regelmässigen Abständen um den Umfang verteilt im Überlaufrohr 11 angeordnet. In der gezeigten Ausführungsform sind vier kreisrunde Durchbrüche 16, die auch als Öffnungen bezeichnet werden können, angeordnet. Die vier Durchbrüche liegen in einem Winkel von 90 Grad beanstandet zueinander.Preferably, a plurality of
Die Form des Durchbruches 16 spielt für die Funktion keine entscheidende Rolle. Wichtig ist, dass sich der Durchbruch durch die Rohrwandung 14 hindurch erstreckt. Besonders bevorzugt werden aber Durchbrüche mit einem kreisrunden Querschnitt, sowie dies in der
Wenn das Dichtungselement 4 auf dem Ventilsitz 13 aufliegt, erstreckt sich der untere Bereich 17 nach unten in den nach dem Ventilsitz 13 angeordneten Auslaufstutzen 8. Der Auslaufstutzen 8 weist eine im Wesentlichen zylindrische Ausbildung auf. Im oberen Bereich, kurz nach dem Ventilsitz 13 ist der Auslaufstutzen 8 auf seiner Innenseite mit einer gerundeten Kante 25 ausgebildet. Diese gerundete Kante 25 hat einen besonderen Vorteil auf den Wasserfluss entlang des Pfeils 15 dies insbesondere im Zusammenhang mit dem konischen Abschnitt 17.When the sealing
Bezüglich der Länge des unteren Bereichs 17, welche in der
Das Überlaufrohr 11 weist im vorliegenden Beispiel einen Durchmesser von 28,5 mm auf. Die kreisrunden Durchbrüche 16 weisen hier einen Durchmesser von 6 mm auf. Andere Abmessungen sind aber auch denkbar.The
In der
Von der
Durch das erfindungswesentliche Merkmal, sprich den Durchbruch 16, kann nun die Höhe H2 der Luftsäule verringert werden. Hierdurch wird auch die Charakteristik der Eigenfrequenz E2 verändert. Die minimale Eigenfrequenz erhöht sich somit, dass die minimale Eigenfrequenz E2 nicht mehr in das Erregerfrequenzband EB eintritt, und somit die Entstehung einer Resonanz verhindert.
Diese Effekte bezüglich der Verkürzung der Luftsäule im Überlaufohr 11 treten insbesondere dann ein, wenn es im Auslaufstutzen 8 zu einer Vollfüllung kommt.
In den Figuren wir eine besonders bevorzugte Ablaufgarnitur gezeigt. Die Ausbildung der Ablaufgarnitur kann im Sinne der in den nachstehenden Ansprüchen definierten Erfindung aber auch anders ausgebildet sein.
Of the
Due to the feature essential to the invention, ie the
These effects with respect to the shortening of the air column in the
In the figures, we show a particularly preferred waste set. However, the design of the drain fitting may also be designed differently in the sense of the invention defined in the following claims.
Claims (9)
- An outlet fitting for a toilet cistern, with a valve seat (13), which is arranged upstream of a discharge opening (27) when viewed in the flow direction, with a sealing element (4) of an outflow pipe (11) cooperating with this valve seat (13), which can be moved upwards for the purpose of triggering a flushing, wherein the outflow pipe (11) comprises a tube wall (14) extending around a middle axis (M), an inlet opening (9) and an outlet opening (10), wherein the outflow pipe (11) comprises in a lower region (17), which extends from the outlet opening (10) to the sealing element (4) being spaced apart from the outlet opening (10), a conical section (19) extending at least partially over the lower region (17), wherein the outer diameter of the outflow pipe (11) decreases from the sealing element towards the outlet opening (10),
characterized in that the length (L) of the lower region (17) from the outlet opening (10) along the middle axis (M) until the sealing element (4) is smaller than the maximal diameter of the outflow pipe (11) in said lower region (17), wherein at least one breakthrough (16) is arranged in the tube wall (14) in the said lower region (17) of the outflow pipe (11). - The outlet fitting according to claim 1, characterized in that the breakthrough (16) is arranged in addition to the outlet opening (10), wherein the lower region comprises or consists of the part of the tube wall (14) and of the interior space (24) of the outflow pipe (11), the outlet opening (10) and the at least one breakthrough (16) arranged in the lower region.
- The outlet fitting according to any one of the preceding claims, characterized in that the breakthrough (16) extends along an axis (A), which essentially runs perpendicularly to the middle axis (M), or which is essentially perpendicular to the surface of the tube wall (14), through which the breakthrough (16) extends.
- The outlet fitting according to any one of the preceding claims, characterized in that the outflow pipe (19) cylindrically runs over a cylindrical section (20) in the lower region (17) between the sealing element (4) and the conical section (19).
- The outlet fitting according to any one of the preceding claims, characterized in that the at least one breakthrough (16) is arranged in the cylindrical section (20) and/or in the conical section (19).
- The outlet fitting according to any one of the preceding claims, characterized in that several breakthroughs (16) are arranged in the outflow pipe (11) distributed at regular spaces around the circumferential.
- The outlet fitting according to any one of the preceding claims, characterized in that the at least one breakthrough (16) comprises a circular cross-section, or that the at least one breakthrough (16) comprises a slot-shaped cross-section.
- The outlet fitting according to any one of the preceding claims, characterized in that the lower region (17) extends downwards into an outlet spigot (8) arranged downstream of the valve seat (13), when the sealing element (4) rests on the valve seat (13).
- The outlet fitting according to any one of the preceding claims, characterized in that the outlet spigot (27) comprises a rounded inlet area (25) preferably in the region immediately after the valve seat (13).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13154398.5A EP2765249B1 (en) | 2013-02-07 | 2013-02-07 | Outlet fitting for a toilet cistern |
| CN201410036581.4A CN103981934A (en) | 2013-02-07 | 2014-01-24 | Outlet fitting for a toilet cistern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13154398.5A EP2765249B1 (en) | 2013-02-07 | 2013-02-07 | Outlet fitting for a toilet cistern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2765249A1 EP2765249A1 (en) | 2014-08-13 |
| EP2765249B1 true EP2765249B1 (en) | 2018-01-03 |
Family
ID=47709967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13154398.5A Active EP2765249B1 (en) | 2013-02-07 | 2013-02-07 | Outlet fitting for a toilet cistern |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2765249B1 (en) |
| CN (1) | CN103981934A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016110694A1 (en) | 2016-06-10 | 2017-12-14 | Tece Gmbh | drain valve |
| CN108018922B (en) * | 2016-11-01 | 2021-05-18 | 科勒公司 | Water inlet structure of toilet |
| CN106759750B (en) * | 2017-01-03 | 2023-04-14 | 厦门瑞尔特卫浴科技股份有限公司 | Take drain valve of overflow pipe to fall structure of making an uproar |
| EP3392418B1 (en) * | 2017-04-19 | 2020-04-29 | Geberit International AG | Fastening system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US386918A (en) * | 1888-07-31 | John demaeest | ||
| BE647271A (en) * | ||||
| FR1191899A (en) * | 1958-02-22 | 1959-10-22 | Pour Les Applic Des Matieres P | Improvement in hunting tanks |
| FR2621630B1 (en) * | 1987-10-09 | 1989-12-15 | Pocachard Thierry | WATER FLUSHING CONTROL MECHANISM FOR TOILET BY PUSH BUTTON |
| CH675267A5 (en) * | 1988-03-16 | 1990-09-14 | Geberit Ag | |
| CH676263A5 (en) | 1988-07-05 | 1990-12-28 | Geberit Ag | |
| ES2257969B1 (en) * | 2004-12-17 | 2007-08-16 | Fominaya, S.A. | EVACUATION DEVICE FOR TANKS OR DEPOSITS WITH DISCHARGE VALVE. |
| PL1854926T3 (en) | 2006-05-11 | 2012-12-31 | Geberit Int Ag | Outlet device for a flushing cistern |
| CN201024492Y (en) * | 2007-04-17 | 2008-02-20 | 赵丕君 | Water-saving flushing valve for toilet |
| CN201165690Y (en) * | 2008-01-04 | 2008-12-17 | 彭东 | Draining valve water stop lower cover structure |
-
2013
- 2013-02-07 EP EP13154398.5A patent/EP2765249B1/en active Active
-
2014
- 2014-01-24 CN CN201410036581.4A patent/CN103981934A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103981934A (en) | 2014-08-13 |
| EP2765249A1 (en) | 2014-08-13 |
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