WO2022029106A1 - Citerne pour un dispositif sanitaire - Google Patents

Citerne pour un dispositif sanitaire Download PDF

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Publication number
WO2022029106A1
WO2022029106A1 PCT/EP2021/071629 EP2021071629W WO2022029106A1 WO 2022029106 A1 WO2022029106 A1 WO 2022029106A1 EP 2021071629 W EP2021071629 W EP 2021071629W WO 2022029106 A1 WO2022029106 A1 WO 2022029106A1
Authority
WO
WIPO (PCT)
Prior art keywords
cistern
outlet
backwash filter
water
overflow
Prior art date
Application number
PCT/EP2021/071629
Other languages
German (de)
English (en)
Inventor
Paul RÜBESAMEN
Sascha RÖDIGER
Stephan Venus
Franziska KALKA
Hendrik Heitkamp
Bertrand Tchana Tchuinou
Pei GUO
Original Assignee
Grohe Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Grohe Ag filed Critical Grohe Ag
Publication of WO2022029106A1 publication Critical patent/WO2022029106A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/003—Grey water flushing systems

Definitions

  • the present invention relates to a cistern for a sanitary facility.
  • Such cisterns are used in particular for flushing the sanitary facility, such as a toilet or a urinal, with a liquid.
  • Flushing cisterns are regularly built into a wall in sanitary rooms and are connected to the sanitary facility via a pipeline. When flushing is activated, the liquid flows via the pipeline into the sanitary facility, as a result of which excrement taken up by the sanitary facility is removed from the sanitary facility.
  • flushing cisterns regularly have a receiving space in which a predefinable quantity of liquid for a flushing process can be kept. Additional functional components of the cistern, such as filling valves, dosing units or drain valves, which are required when using the cistern, are also arranged in the receiving space.
  • cisterns can be operated not only with fresh water or drinking water, but also with raw water, which can be, for example, so-called gray water or rainwater.
  • raw water can contain impurities, such as leaves, sediment, dead insects or the like, which can lead to impairments or damage to the functional components of the cistern.
  • Filling valves with screens are therefore known, through which the impurities can be filtered out of the raw water.
  • these screens can become clogged with contamination over time, so that they have to be serviced or replaced regularly. This is associated with a high maintenance effort.
  • the object of the invention is therefore to at least partially solve the problems described with reference to the prior art and in particular to specify a cistern for a sanitary facility which can be used with untreated water and requires little maintenance.
  • This object is achieved with a cistern according to the features of the independent patent claim.
  • Further advantageous configurations of the cistern are specified in the dependent patent claims. It should be pointed out that the features listed individually in the patent claims can be combined with one another in any technologically meaningful way and define further refinements of the invention. In addition, the features specified in the patent claims are specified and explained in more detail in the description, with further preferred configurations of the invention being presented.
  • a cistern for a sanitary facility that has at least the following contributes to this:
  • a backwash filter with an inlet for raw water, a first outlet for clean water and a second outlet for rinsing water;
  • the cistern is used in particular for flushing a sanitary facility, such as a toilet or a urinal.
  • the cistern can be arranged in particular in or on a building wall of a building and/or can be connected to the sanitary facility via a pipeline.
  • the cistern has a backwash filter through which the raw water can be filtered to form pure water.
  • the raw water can be, for example, what is known as gray water or rainwater.
  • the raw water can be fed to the backwash filter via an inlet. Inside the backwash filter, the raw water flows through a filter material that can be designed, for example, in the manner of a filter insert or sieve.
  • the filter material can at least partially remove (macroscopic) impurities from the raw water so that this closing as pure water can leave the backwash filter via a first outlet of the backwash filter.
  • the pure water therefore does not have to be "pure” in the sense of drinking water, but can still contain impurities that have not been removed by the filter material, for example due to their small size.
  • the first outlet of the backwash filter is connected to a filling valve, by means of which filling of the cistern with the pure water, in particular automatically, can be controlled.
  • the filling valve is in particular open until a predetermined filling level of the pure water is reached in a receiving space of the cistern.
  • the receiving space of the cistern can, for example, have a capacity for the pure water of 3 liters to 9 liters. Furthermore, the receiving space can have an upper opening, which can be closed at least partially by a cover, for example. In addition, the cistern can be made at least partially of plastic and/or be designed as a plastic injection molded part.
  • the filling valve can include a float, by means of which the filling level of the pure water in the receiving space can be determined. When the predetermined filling level is reached, the filling valve closes, in particular automatically, until the predetermined filling level is fallen below again when the sanitary facility is flushed.
  • the backflush filter and the filling valve can be designed as separate components, for example, or the backflush filter can be integrated into the filling valve.
  • the first outlet of the backwash filter can be connected to the filling valve via a liquid line, for example in the form of a flexible hose or a pipeline.
  • the cistern has an overflow for removing excess clean water from the cistern.
  • Excess clean water can be removed via the overflow, in particular when the clean water in the receiving space of the cistern exceeds a maximum permissible filling level. This can occur, for example, if the filling valve is defective.
  • the overflow thus prevents in particular an uncontrolled escape of the pure water from the top opening of the cistern and/or water damage to the building.
  • the excess clean water can be fed to a sewer or the sanitary facility, for example, via the overflow.
  • the backwash filter can become at least partially clogged with impurities during the operation of the cistern, so that, for example, the flow of raw water or pure water through the backwash filter decreases, the backwash filter can be changed over in such a way that at least part of the pure water uses the filter material of the filling valve as rinsing water flows through in the opposite direction, removing the impurities retained by the filter material via a second outlet of the backflush filter.
  • the backwash filter is therefore particularly low-maintenance or even maintenance-free.
  • the backwash filter can be switched over, for example, by means of a valve of the backwash filter, by means of which in particular the second outlet for the rinsing water of the backwash filter can be opened and/or closed.
  • the flushing water can be discharged from the second outlet of the backwash filter, in particular directly, into the overflow, via which the flushing water can be removed from the cistern.
  • the overflow can be formed on a drain valve of the cistern.
  • the drain valve can be used in particular to control the flow of the clean water from the receiving space to the sanitary facility.
  • the overflow can in particular be at least partially tubular and/or (when the cistern is installed) have an upwardly directed opening for the clean water.
  • the overflow in the installed state of the cistern
  • the drain valve can be arranged, for example, on a floor of the receiving space of the cistern.
  • the filling valve can be fastened to the drain valve, for example via a holder.
  • a drain of the cistern can be closed by the drain valve.
  • the drain is in particular an opening in the cistern, via which the clean water can be fed to the sanitary facility, for example via a pipeline.
  • the drain is arranged in particular on the bottom of the receiving space of the cistern.
  • the drain valve can have a valve body which, for example, at least partially is tubular and / or hollow.
  • the valve body can be placed, for example with one of its longitudinal ends, in particular on a valve seat of the outlet and/or lifted off the valve seat to open the outlet.
  • the second outlet of the backwash filter can open into the overflow.
  • the second outlet of the backwash filter can in particular open into the overflow in such a way that there is no (direct) physical contact between the second outlet and the overflow.
  • the second outlet can be arranged at a distance from the overflow.
  • the flushing water can, for example, at least partially enter the overflow as a free jet.
  • the second outlet of the backwash filter can be connected to the overflow.
  • the second outlet can, for example, open directly into the overflow or be connected to the overflow via a liquid line, such as a flexible hose or a pipe.
  • the backwash filter can be placed above the overflow. This is particularly the case when the cistern is in a mounted state or in a state ready for operation.
  • the backwash filter can be manually adjustable between a normal operating mode and a flushing operating mode.
  • the filter material of the backwash filter is not cleaned.
  • the second outlet for the rinsing water is in particular closed, so that the clean water leaves the backwash filter completely via the first outlet of the backwash filter.
  • the flushing operating mode the filter material of the cistern is cleaned, in particular by the clean water flowing through the filter material of the backflush filter at least partially in a direction opposite to that in the normal operating mode, so that contaminants caught by the filter material are removed from the filter material.
  • the second outlet for the rinsing water in particular at least partially open.
  • a user of the sanitary facility can, for example, switch between the normal operating mode and the flushing operating mode.
  • the cistern can have an actuating element for actuating the backwash filter.
  • the actuating element can be, for example, an actuating button or the like, by means of which the backwash filter can be adjusted by the user into the normal operating mode and/or the flushing operating mode.
  • the actuating element can be arranged, for example, on the building wall or on the sanitary facility.
  • the backwash filter can be automatically adjustable between a normal operating mode and a flushing operating mode.
  • the backwash filter can have an (electric) drive, for example, which can be controlled, for example, by a controller.
  • the backwash filter can be cleaned automatically at regular intervals, for example, or when excessive contamination is detected.
  • the cistern can have a mounting frame with which the cistern can be fastened to a building wall.
  • the mounting frame can include at least one metal profile.
  • the mounting frame can be fastened to the building wall and/or a building floor.
  • the mounting frame can serve as a support for the sanitary facility.
  • 1 a sanitary facility
  • 2 a cistern of the sanitary facility
  • Fig. 5 the backwash filter of the sanitary facility in a flushing operating mode.
  • FIG. 1 shows a sanitary facility 2, which is designed here in the manner of a toilet and is fastened to a building wall 13 with the aid of a mounting frame 12 shown in FIG.
  • the mounting frame 12 is covered in FIG. 1 with a pre-wall 14 so that the mounting frame 12 is not visible.
  • the pre-wall 14 shown in FIG. 1 and the sanitary facility 2 are not shown in FIG. 2 so that the mounting frame 12 can be seen.
  • a cistern 1 of the sanitary facility 2 is attached to the mounting frame 12 .
  • Fig. 3 shows the cistern 1 in a schematic sectional view from a section shown in Fig.
  • a backwash filter 3 is arranged in the cistern 1, the inlet 4 of which is connected via a first liquid line 16 to a source 17 for raw water.
  • the raw water can be filtered through the backwash filter 3 and fed as pure water to a filling valve 7 of the cistern 1 via a first outlet 5 of the backwash filter 3 .
  • the first outlet 5 of the backwash filter 3 is connected to the filling valve 7 via a second liquid line 18 .
  • a receiving space 19 of the cistern 1 can be filled with the pure water up to a predeterminable filling level.
  • the cistern 1 has a drain 10 on its base 20, via which the clean water can be fed to the sanitary facility 2 shown in FIG. 1 in order to carry out a flush.
  • the Flushing cistern 1 has a drain valve 9 with which a flow of the clean water from the receiving space 19 to the sanitary facility 2 can be controlled with a tubular valve body 21 .
  • the drain 10 is closed in FIG. 3 by the valve body 21 of the drain valve 9 .
  • a control element 22 of the drain valve 9 shown in FIG. 1 is actuated by a user of the sanitary facility 2, the drain valve 9 opens the drain 10 by the valve body 21 being lifted off a valve seat 23 of the drain 10 (up).
  • the drain valve 9 also has a tubular overflow 8 via which excess clean water can be removed when the clean water in the receiving space 19 of the cistern 1 exceeds a permissible fill level 25 . This can occur, for example, if the filling valve 7 is defective.
  • a filter material 26 of the backwash filter 3 shown in FIGS. 4 and 5 can become increasingly clogged with impurities carried along in the untreated water, so that the filter material 26 has to be cleaned.
  • the backwash filter 3 can be adjusted from a normal operating mode into a flushing operating mode by a user of the sanitary facility 2 via an actuating element 11 shown in FIG. 1 .
  • rinsing operating mode rinsing water flows through the filter material 26 of the backwash filter 3 in the opposite direction, so that the impurities caught by the filter material 26 are discharged with the rinsing water via a second outlet 6 of the backwash filter 3 into the overflow 8 of the drain valve 9.
  • the backwash filter 3 is arranged with its second outlet 6 above the overflow 8 .
  • the flushing water flows from the overflow s through the tubular valve body 21 and the outlet 10 into the sanitary facility 2 shown in FIG.
  • the cistern 1 also includes an inspection flap 31 that can be closed in particular in a liquid-tight manner, via which the backwash filter 3 is accessible, for example for maintenance purposes.
  • 4 shows the backwash filter 3 in a longitudinal section.
  • the backflush filter 3 is in FIG. 4 in a normal operating mode, in which the raw water flowing in via the inlet 4 flows through the tubular filter material 26 from the outside in and leaves the backflush filter 3 as clean water via the first outlet 5 .
  • the backflush filter 3 is in Fig. 5 in the flushing operating mode, in which the backflush filter 3 is adjusted in such a way that the raw water flowing in via the inlet 4 flows through a tubular secondary filter 27 from the outside to the inside and then in a first partial flow 28 as clean - Water leaves the backflush filter 3 via the first outlet 5 and flushes the filter material 26 from the inside out in a second partial flow 29 and leaves the backflush filter 3 via the second outlet 6 as flushing water.
  • the backwash filter 3 can be adjusted here between the normal operating mode and the flushing operating mode with the aid of a valve 30 and via the actuating element shown in FIG. 1 .
  • a cistern that can be used with raw water requires little maintenance.

Abstract

L'invention concerne une citerne (1) pour un dispositif sanitaire (2), comprenant au moins : un filtre de rinçage à rebours (3) comportant une entrée (4) pour l'eau non traitée, une première sortie (5) pour l'eau traitée et une seconde sortie (6) pour l'eau de rinçage ; une vanne de remplissage (7) pour remplir la citerne (1) avec l'eau traitée, la vanne de remplissage (7) étant raccordée à la première sortie (5) du filtre de rinçage à rebours ; et un trop-plein (8) pour évacuer l'eau traitée en excès de la citerne (1), l'eau de rinçage pouvant être amenée de la seconde sortie (6) du filtre de rinçage à rebours (3) dans le trop-plein (8).
PCT/EP2021/071629 2020-08-07 2021-08-03 Citerne pour un dispositif sanitaire WO2022029106A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020120913.4A DE102020120913A1 (de) 2020-08-07 2020-08-07 Spülkasten für eine Sanitäreinrichtung
DE102020120913.4 2020-08-07

Publications (1)

Publication Number Publication Date
WO2022029106A1 true WO2022029106A1 (fr) 2022-02-10

Family

ID=77358242

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/071629 WO2022029106A1 (fr) 2020-08-07 2021-08-03 Citerne pour un dispositif sanitaire

Country Status (2)

Country Link
DE (1) DE102020120913A1 (fr)
WO (1) WO2022029106A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021125410A1 (de) 2021-09-30 2023-03-30 Grohe Ag Filtereinrichtung für einen Spülkasten und Spülkasten für eine Sanitäreinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458625A (en) * 1945-10-23 1949-01-11 John J Niziolek Water filter bowl
FR2708298A1 (fr) * 1993-07-28 1995-02-03 Piat Moise Equipement pour le remplissage et le vidage des réservoirs de chasse de WC.
FR2767848A1 (fr) * 1997-08-27 1999-03-05 Jean Pierre Leclercq Installation comprenant une cuve de stockage d'eau et un reservoir de chasse d'eau

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19507764A1 (de) 1995-03-06 1996-09-12 Rost & Co Gmbh Verbindungseinheit
DE10222193A1 (de) 2002-05-18 2003-11-27 Thomas Wartmann Elektronische Wasserspülung
CN210079012U (zh) 2019-05-31 2020-02-18 厦门瑞尔特卫浴科技股份有限公司 一种易清洁的过滤器及具有其的马桶水箱装置和进水阀

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458625A (en) * 1945-10-23 1949-01-11 John J Niziolek Water filter bowl
FR2708298A1 (fr) * 1993-07-28 1995-02-03 Piat Moise Equipement pour le remplissage et le vidage des réservoirs de chasse de WC.
FR2767848A1 (fr) * 1997-08-27 1999-03-05 Jean Pierre Leclercq Installation comprenant une cuve de stockage d'eau et un reservoir de chasse d'eau

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Publication number Publication date
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