EP3551808B1 - Pressurised water valve - Google Patents

Description

The present invention relates to a pressurized water valve (also called a pressure flush valve) for a toilet facility, according to the preamble of claim 1.

The desire to have to use as little water as possible in toilet facilities has led, on the one hand, to toilet facilities that have a selection device by means of which one can choose between different amounts of water for flushing. Such a flushing system is for example in WO 2010/030264 A1 disclosed. On the other hand, the desire to save water when flushing the toilet has led to pressurized water flushing systems in which a higher water pressure when flushing ensures that flushing is as good or even better than with conventional flushing systems with a generally lower amount of water will. A combination of a pressurized water flushing system and a flushing device with freedom of choice between two different amounts of water is in EP 1 537 277 B1 known.

For a better understanding of the basic principle, in Figure 1 a toilet facility 2000 with a pressurized water flushing system 2002 is shown by way of example and purely schematically. A pressurized water tank 2004 of the pressurized water flushing system 2002 is connected to a pressurized water valve 2010 via a connecting line 2020. The pressurized water valve 2010 is actuated for the flushing process, whereby a predefined volume of water is pressurized as Rinsing water from the pressurized water tank 2004 is passed through the open valve 2010 and a drain line 2022 connected to the valve downstream into a toilet bowl 2006. The predefined water volume has a predefined first pressure Dl (indicated by the arrow Dl) which is greater than the water pressure D2 (see arrow D2) under an air atmosphere. Such pressurized water flushing systems 2002 usually work on the principle of a hydraulic accumulator. A first part of the flushing water from the toilet bowl 2006 flows through a siphon 2012 as waste water into the waste water pipe 2008 and further into the sewer system (not shown). A portion of the flushing water that was later poured in, however, remains in the 2012 siphon, which closes the 2008 waste water pipe against the 2006 toilet bowl so that it is odor-tight. After a flushing process, the pressurized water tank 2004 is refilled with water flowing in from the local water supply system via the local water supply line 2014 (also called drinking water line 2014). Depending on the system, a valve 2018 or check valve etc. can optionally be provided between the local water supply line 2014 and the pressurized water flushing system 2002 of the toilet facility 2000.

For WC systems including pressurized water flush systems for WC systems, the requirements of the EN 1717 standard and in many countries outside Europe similar standards must be taken into account, at least in most European countries. the end WO 2016/163959 A2 an example of a pressurized water flushing system is known which complies with the EN 1717 standard and which is provided with a pressurized water tank, a hydraulic accumulator separated therefrom and a corresponding pressure flushing valve. That The pressure flush valve separates the pressurized water tank from the drain line, which leads to the toilet bowl, and is opened for flushing.

Pressurized water flushing systems of the type described above for toilet facilities have been known for a long time, and accordingly pressure flushing valves for such pressurized water flushing systems are also known. As with every valve, these pressurized water valves also have a valve seat and a valve body that can be placed on it, as well as an actuating device by means of which the valve can be actuated and the valve body can be detached from the valve seat. The valve seat and valve body are designed in such a way and between a pressurized water tank 2004 or a connecting line 2020 and a drain line 2022 (see Fig. 1 ) arranged that by actuating the pressure flush valve 2010 a defined volume of water for flushing flows from the pressure water tank 2004 of the pressure water flush system 2000 into the toilet bowl 2006. As a rule, the pressurized water valve has a reset device, which ensures that the valve body is seated tightly on the valve seat again after a certain period of time and that the valve is therefore closed again after this certain period of time. Often there is also an adjustment element by means of which the volume of water that flows into the toilet bowl during a flushing process can be adjusted.

As mentioned above, most countries have standards such as DIN EN 1717, which contains regulations for keeping drinking water clean. Such regulations stipulate that wherever there is a flow connection between service water / wastewater and There is a drinking water pipeline - or it could come into being in the event of an accident - the drinking water must be protected from contamination by returning service water / wastewater. The process water can flow back / suck in in the direction of the drinking water pipe, for example, if there is or is a higher pressure in a device than in the drinking water pipe (= negative pressure in the drinking water pipe compared to the pressure in the device), or if the pressure in the drinking water system is higher sinks because, for example, a valve with a high flow rate is opened on a lower floor, e.g. the flush valve of a urinal. Negative pressure in the drinking water supply line and a corresponding backflow / sucking in of the service water can also occur due to a broken pipe or if a valve is opened at a lower point in a blocked pipe section in a water supply system, as is always the case with repair work on domestic water supply systems occurs.

The present invention provides a pressure flush valve for a pressurized water flushing system for a toilet facility as described above, which reliably prevents the process water from flowing back into the drinking water line.

This pressure flush valve is supplemented with a selection device which enables the choice between different amounts of water for flushing.

• die Deckelkammer nur mittels Verbindungsnuten strömungstechnisch mit dem Einlassstutzen verbunden ist,
• der Ventilstutzen axial kürzer ist als der Auslassstutzen,
• der Auslassstutzen und der Ventilstutzen radial einen ringförmigen Hohlraum umschliessen, der einen Belüftungskanal bildet, wobei der Belüftungskanal im Bereich des Deckelstutzens mit Belüftungsöffnungen in Strömungsverbindung steht.

from DE 830 177 C a similar pressure water valve is known. This pressurized water valve comprises a valve housing with an inlet port and an outlet port; a valve seat and a valve body which are arranged between the inlet connector and the outlet connector in such a way that, by actuating the valve, a defined volume of water for flushing can be directed through the outlet connector into a toilet bowl; an actuating device by means of which the valve can be actuated and the valve body can be detached from the valve seat; a return device which moves the valve body back onto the valve seat; an adjusting element by means of which the volume of water can be adjusted, which can be directed into the toilet bowl for flushing, a cover socket arranged in the stroke direction of the valve body with a cover chamber arranged above the valve body; and a valve port extending in the same direction as the outlet port. The cover chamber is fluidically connected to the outlet connection and / or the valve connection, whereby this connection can be opened by means of the actuating device and this connection can be closed by means of at least part of the rear part device. The pressurized water valve according to the invention differs from DE 830 177 C in the following characteristics:

• the cover chamber is only fluidically connected to the inlet nozzle by means of connecting grooves,
• the valve port is axially shorter than the outlet port,
• the outlet connector and the valve connector radially enclose an annular cavity which forms a ventilation channel, the ventilation channel being in flow connection with ventilation openings in the area of the cover connector.

In the following, the terms outlet nozzle and drain nozzle are used synonymously for each other.

In a further embodiment, the valve connector has a smaller diameter than the drain connector and opens into the drain connector, valve connector and drain connector preferably being arranged concentrically. This is an advantageous design when the pressurized water tank of the pressurized water flushing system for a toilet facility is connected to the inlet port of the pressurized water valve via a connecting line.

In another embodiment of the pressurized water valve, the valve connector has a larger diameter than the drain connector and surrounds the drain connector, the drain connector protruding beyond the valve connector in the outflow direction and the valve connector and drain connector preferably being arranged concentrically. This is an advantageous design when the pressurized water tank of the pressurized water flushing system for a toilet facility is connected directly to the inlet port of the pressurized water valve or even merges into it.

In a particularly easy-to-manufacture embodiment of the pressurized water valve, the valve housing is designed in one piece and in particular is designed in one piece with the inlet connector, the cover connector, the valve connector and the drain connector, the Valve housing is designed in particular as a cast part or injection molded part.

In a special embodiment of the pressurized water valve, the valve body is designed to be essentially hollow and its at least one cavity is fluidically connected to the cover chamber, the at least one cavity having a central opening in the direction of the discharge nozzle, and with a valve tappet closing and opening in the manner of a valve the central opening is possible.

In a further development of this pressurized water valve, the valve plunger has a plunger head that closes the central opening, from which a plunger protrudes which has a smaller diameter than the plunger head, whereby the plunger and with it the plunger head can be tilted out of its rest position by means of the actuating device.

In a variant of the pressurized water valve described in the above paragraph, the plunger protrudes from the plunger head in such a way that it protrudes through the central opening from the cavity in the direction of the drainage connection, the plunger being tiltable from its rest position by means of a plunger belonging to an actuating device, and the valve housing has a housing extension which receives the actuating device.

In another variant of this pressurized water valve, the plunger protrudes from the plunger head in such a way that it protrudes into the cover chamber and by means of a pressure lever can be actuated, the pressure lever belonging to an actuating device which can be operated from the side of the cover chamber above the valve body.

In a further embodiment of the pressurized water valve, the cover space is fluidically connected to at least one, preferably to two, but under certain circumstances also to more than two, flooding chambers of an actuating device. The at least one flooding chamber, or each of the flooding chambers, is in flow connection with a water outlet on its side opposite the cover space, the connection between the respective flooding chamber and the water outlet being provided with a trigger that can be operated from the outside and is connected to the connection extends between the respective flooding chamber and the water outlet and enables a valve-like closing and opening of this fluidic connection there, with opening of this connection also allowing the water to flow out of the cover chamber. More than two flooding chambers can be useful if, for example, more than two different amounts of water are to be made available for rinsing. As a rule, however, two flooding chambers are provided.

In a further development of the pressurized water valve, at least two flooding chambers are provided in which the regulating bodies can be moved linearly in the manner of a piston, the stroke hl, h2 of the regulating body being adjustable by means of adjusting screws, and the stroke hl, h2 of the regulating body also determining the volume of water that comes out of the cover chamber via the corresponding flooding chamber escapes, whereby the stroke H of the valve body during the flushing process and thus the gap S above the valve seat and the amount of flushing water is defined during the flushing process.

A restoring device, in particular a restoring spring, is advantageously provided in each of the at least two flooding chambers, which, after the pressurized water has drained out of the flooding chamber, moves the corresponding regulating body back into its starting position. Furthermore, in this embodiment, each of the at least two flooding chambers has grooves on its inner wall or the associated regulating body has grooves, the grooves allowing water to flow from the cover space into the corresponding flooding chamber after flushing.

It is very simple and time-saving for assembly if the one flooding chamber or each of the at least two flooding chambers, together with its trigger, belongs to an actuating element, and all actuating elements are combined in one assembly together with the water outlet. Another advantage with regard to costs and manufacturability is achieved if the at least one or two flooding chambers, the water outlet and the flow connection between the two are designed in one piece and in particular as a cast part or an injection-molded part.

In a variant of the pressurized water valve, the assembly with the at least one actuating element is directly connected by means of a screw connection to a cover of the pressurized water valve, which closes the cover chamber on one side, the screw connection containing a connection channel that establishes the flow connection between the at least one or two, Flooding chamber and the lid chamber realized.

In another variant of the pressurized water valve, the assembly with the at least one actuating element is connected by means of a connecting line to a cover of the pressurized water valve, which closes the cover chamber on one side, the connecting line containing a connecting channel that establishes the flow connection between the at least one or two, Flooding chamber and the lid chamber realized. The implementation of the actuating elements contained in the flooding spaces enables the pressurized water flushing valve to be redesigned with simple hand movements so that it can also be flushed with different amounts of flushing water. Another advantage of this embodiment is that only one pressurized water tank is required for this, while conventional pressurized water systems that want to provide different amounts of flushing water generally require a corresponding number of pressurized water tanks.

The combination of the actuating elements with their flooding chambers in a single assembly makes the construction compact and easy to install. Existing pressurized water valves, in particular of the type described here, can also be converted or retrofitted with such assemblies to a pressurized water flushing system that provides different amounts of water for flushing.

It is particularly advantageous, because it is simple and safe in the sense of EN 1717, if the water outlet for draining the water is fluidically connected to the drain connection or the valve connection. Pressurized water flushing systems for a toilet facility, which comprise at least one pressurized water tank, which can be connected upstream to a local pressurized water or drinking water line and which is in flow connection downstream with a pressurized water valve, which is furthermore a WC which is arranged downstream of the pressurized water valve and is in flow connection with it. Include basins that can be connected downstream to a sewer line are particularly advantageously equipped with a pressurized water valve which is designed according to the descriptions given above.

As already mentioned, due to the compactness of the pressurized water valve and its simple assembly, it can also be used to retrofit existing pressurized water flushing systems for toilet facilities.

For this it is possible to connect the pressurized water tank to the inlet port of the pressurized water valve via a connecting line. The pressurized water tank can therefore be arranged at some distance from the pressurized water valve. However, it is also possible that the pressurized water tank of the pressurized water flushing system is connected directly to the inlet port of the pressurized water valve or merges into it.

Further embodiments and further developments of the invention are also described in the dependent claims.

• Fig.1 eine WC-Anlage mit einem Druckwasserspülsystem gemäss Stand der Technik;
• Fig.2 eine erste Ausführungsform des erfindungsgemässen Druckspülventils von oben;
• Fig.3 das Druckspülventil aus Fig. 2 in geschlossenem Zustand in einem Schnitt entlang der Schnittlinie III-III in Fig. 2, die sich weiter entlang einer Längsachse eines Ventilkörpers des Druckspülventils erstreckt;
• Fig.4 das Druckspülventil aus Fig. 2 entlang der Schnittlinie IV-IV in Fig. 2 und ebenfalls in einem Schnitt entlang der Längsachse des Ventilkörpers;
• Fig.5 das Druckspülventil aus Fig. 2 bzw. Fig. 3 entlang der Schnittlinie V-V in Fig. 3 mit Blick von unten auf den Ventilkörper und eine Betätigungsvorrichtung für das Druckspülventil;
• Fig.6 das Druckspülventil aus Fig. 2 bzw. Fig. 3 entlang der Schnittlinie VI-VI in Fig. 3 mit einem perspektivischen Blick schräg von oben auf die angeschnittene Betätigungsvorrichtung;
• Fig.7 das Druckspülventil aus Fig. 2 bzw. Fig. 3 in gleicher Schnittdarstellung wie in Fig. 3 aber in geöffnetem Zustand mit Wasserdurchfluss ;
• Fig.8 das Druckspülventil aus Fig. 2 bzw. Fig. 4 in gleicher Schnittdarstellung wie in Fig. 4 aber in geöffnetem Zustand mit Wasserdurchfluss ;
• Fig.9 das Druckspülventil aus Fig. 8 in geöffnetem Zustand bei Unterdruck in der Wasserversorgungsleitung;
• Fig.10 in Schnittansicht mit Schnitt durch Ventilkörper eine Variante BetätigungsVorrichtung;
• Fig.11 perspektivisch schräg von oben eine zweite Ausführungsform des erfindungsgemässen Druckspülventils mit der Möglichkeit zwischen zwei unterschiedlichen Wassermengen (hier ^ und volle Spülwassermenge) zu wählen;
• Fig.12 das Druckspülventil aus Fig. 11 im Schnitt entlang der Schnittebene XII-XII in Fig. 11 und entlang einer Längsachse eines Ventilkörpers des Druckspülventils und zwar in geschlossenem Zustand;
• Fig.13 das Druckspülventil aus Fig. 11 in gleicher Schnittansicht wie in Fig. 12, wobei aber die links in der Figur 11 gezeigte Betätigungseinheit für die geringere Wassermenge (hier die ^ Spülwassermenge) betätigt ist und das Ventil entsprechend weit geöffnet ist;
• Fig.14 das Druckspülventil aus Fig. 11 im Schnitt entlang der Schnittebene XIV-XIV in Fig. 11 in geschlossenem Zustand;
• Fig.15 das Druckspülventil aus Fig. 11 in gleicher Schnittansicht wie in Fig. 14, wobei aber die rechts hinten in der Figur 11 gezeigte Betätigungseinheit für die volle Wassermenge betätigt ist und das Ventil entsprechend weit geöffnet ist;
  das Druckspülventil aus Fig. 11 mit geschlossenem Ventil im Schnitt entlang der Schnittebene XII-XII in Fig. 11
• Fig.16 das Druckspülventil aus Fig. 11 in gleicher Schnittansicht wie in Fig. 14, wobei aber die links hinten in der Figur 11 gezeigte Betätigungseinheit für die geringe Wassermenge (hier ^ Spülwassermenge) betätigt ist und das Ventil entsprechend weit geöffnet ist; und
• Fig.17 perspektivisch von aussen eine Variante des Druckspülventils aus Fig. 11.

The pressure flush valve according to the invention is illustrated below with reference to the figures Embodiments described in more detail. The same elements in the figures are identified by the same reference symbols. The purely schematic representations in the figures are not to scale. The explanations are only given by way of example and have no restrictive effect. The figures show purely schematically:

• Fig. 1 a toilet facility with a pressurized water flushing system according to the state of the art;
• Fig. 2 a first embodiment of the pressure flush valve according to the invention from above;
• Fig. 3 the pressure flush valve off Fig. 2 in the closed state in a section along the section line III-III in FIG Fig. 2 which extends further along a longitudinal axis of a valve body of the pressure purge valve;
• Fig. 4 the pressure flush valve off Fig. 2 along the section line IV-IV in Fig. 2 and also in a section along the longitudinal axis of the valve body;
• Fig. 5 the pressure flush valve off Fig. 2 respectively. Fig. 3 along the section line VV in Fig. 3 with a view from below of the valve body and an actuating device for the pressure flush valve;
• Fig. 6 the pressure flush valve off Fig. 2 respectively. Fig. 3 along the section line VI-VI in Fig. 3 with a perspective view obliquely from above on the trimmed actuating device;
• Fig. 7 the pressure flush valve off Fig. 2 respectively. Fig. 3 in the same sectional view as in Fig. 3 but in the open state with water flow;
• Fig. 8 the pressure flush valve off Fig. 2 respectively. Fig. 4 in the same sectional view as in Fig. 4 but in the open state with water flow;
• Fig. 9 the pressure flush valve off Fig. 8 in the open state with negative pressure in the water supply line;
• Fig. 10 in a sectional view with a section through the valve body, a variant of the actuating device;
• Fig.11 perspective diagonally from above a second embodiment of the pressure flushing valve according to the invention with the possibility of choosing between two different amounts of water (here ^ and full amount of flushing water);
• Fig.12 the pressure flush valve off Fig. 11 in section along the section plane XII-XII in Fig. 11 and along a longitudinal axis of a valve body of the pressure flush valve, specifically in the closed state;
• Fig. 13 the pressure flush valve off Fig. 11 in the same sectional view as in Fig. 12 , but the left in the Figure 11 The actuating unit shown for the smaller amount of water (here the ^ flushing water amount) is actuated and the valve is correspondingly wide open;
• Fig. 14 the pressure flush valve off Fig. 11 in section along the section plane XIV-XIV in Fig. 11 when closed;
• Fig.15 the pressure flush valve off Fig. 11 in the same sectional view as in Fig. 14 , but the right back in the Figure 11 The actuating unit shown is actuated for the full amount of water and the valve is correspondingly wide open;
  the pressure flush valve off Fig. 11 with the valve closed in the section along the section plane XII-XII in Fig. 11
• Fig. 16 the pressure flush valve off Fig. 11 in the same sectional view as in Fig. 14 , but the back left in the Figure 11 The actuating unit shown for the small amount of water (here ^ flushing water amount) is actuated and the valve is correspondingly wide open; and
• Fig.17 in perspective from the outside a variant of the pressure flush valve Fig. 11 .

In the Figures 2 to 6 a first embodiment of a pressurized water valve 10 according to the invention is shown in the closed state. The structure of the pressure flush valve 10 is described below with reference to these figures.

As can be seen from the figures, the pressurized water valve 10 has a valve housing 9 which comprises an inlet connector 20 with an axis 2, a housing extension 7 and a cover connector 25 approximately perpendicular to the inlet connector 20. Ventilation openings 80 are provided in the valve housing 9 in the region of the cover connector 25. In addition, the housing 9 comprises, as an extension of the cover connector 25 and the cover connector 25, an outflow connector 22 opposite with respect to the axis 2, with the dachshund connector 25 and outflow connector 22 being concentric in this example - but this does not necessarily have to be the case - and defining a valve longitudinal axis 1. The valve housing 9 is preferably formed in one piece, as shown in this example.

The inlet nozzle 20 is for the connection of a connecting line 2020 (see Figure 1 ) to a pressurized water tank 2004 ( Figure 1 ) intended. The drain port 22 is provided that the Drain line 2022 ( Fig. 1 ) can be connected to the 2006 toilet bowl. In the example shown here, the axis 2 of the inlet connector 20 is approximately perpendicular to the valve longitudinal axis 1 and meets this in a cavity of the valve housing 9, which separates the inlet connector 20, the cover connector 25 and the drain connector 22 from one another or in which they meet , and, in which - in the assembled state - essential parts of a valve body 14 are arranged.

In this example, the housing extension 7 is arranged offset relative to the valve longitudinal axis 1 with respect to the inlet connector but axially in the direction of the outlet connector 22. But it could also be arranged at an angle between 45 ° and 315 ° instead of at 180 ° to the inlet connection. It has a housing opening 15 and serves to accommodate an actuating device 16. In the example shown here, the actuating device 16 is provided with a trigger 18 designed as a push button 18 ′, which merges into a stamp 19. The punch 19 is guided from the outside through the housing opening 15 into the interior of the housing 9 and is mounted in a bearing element 17 in the housing extension 7. A return spring 27 is arranged in the bearing element 17, which after actuation of the trigger 18 - i.e. in this case after pressing the pushbutton 18 '- ensures that the trigger 18 / pushbutton 18' and the stamp 19 connected to it are returned to the starting position . The housing opening 15 is closed from the outside by means of a closure element 29, the closure element 29 having a feed-through opening through which the trigger 18 / push button 18 'is guided to the outside. The actuating device 16 is inwardly against the water-carrying elements of the valve 10 or the housing opening 15 is sealed by means of a sealing membrane 26. After assembly, the closure element 29, together with the bearing element 17, ensures that all components 18/18 ', 19, 26, 27 of the actuating device 16 in the pressure flush valve 10 are fixed in their respective places and with their intended movement options.

The cover socket 25 is provided with an internal thread so that a valve cover 8 can be screwed in. The valve cover 8 has an upper cover part 30, from the outer edge of which a cover cylinder 32 with an external thread protrudes vertically, so that the valve cover 8 can be screwed into the cover socket 25 of the valve housing 9 by means of the cover cylinder 32. The upper cover part 30 of the valve cover 8, together with the cover cylinder 32, encloses a cover chamber 34 which is open on the side opposite the upper cover part 30. Connecting grooves 36 are provided on the inside of the cover cylinder 32. When the valve is fully assembled, the cover chamber 34 is in flow connection with the water-carrying inlet connector 20 only via these grooves 36 and can only be filled with water via these grooves 36.

Of course, it would also be conceivable that the cover cylinder 32 with an internal thread and the cover connector 25 of the valve housing 9 have an external thread - that is, the reverse of the example shown - and thus could be screwed onto the cover connector 25 (instead of screwed in). Accordingly, the cover would be provided with ventilation openings and the inside of the cover connector would form the cover chamber together with the upper part of the cover. There would be corresponding grooves on the Provide inside of the cover nozzle in order to keep the cover chamber in flow connection with the water-carrying inlet nozzle.

In the embodiment shown here, an opening is provided in the center of the upper part 30 of the cover, which merges into a receiving cylinder 38 with an internal thread ( Fig. 3 and 4th ), the receiving cylinder 38 protruding from the upper part 30 of the lid in the same direction as the lid cylinder 32. An adjusting screw 28 'can be screwed into the receiving cylinder 38 and, in the example shown here, serves as an adjusting element 28 for adjusting the flushing volume of the valve 10. Instead of an adjusting screw 28 ', other embodiments are also conceivable here, such as, for example, an adjusting pin that can be fixed by means of clamps and the like.

When the valve 10 is opened, the adjusting screw 28 'screwed into the cover 8 interacts with a valve body 14 of the pressurized water valve 10 and limits a stroke H (see FIG Fig. 7 and 8th ) of the valve body 14. A cover spring 56, which in this example is designed as a spiral spring, is pushed onto the receiving cylinder 38 protruding from the upper cover part 30 and extends between the inside of the upper cover part 30 and the valve body 14. Depending on how far the adjusting screw 28 ' is screwed into the receiving cylinder 38 of the cover 8, the stroke H is shorter or longer and thus a gap S that is released between the valve body 14 and valve seat 12 is larger or smaller and accordingly the volume of flushing water that can flow through the valve 10 is larger or smaller (see below).

The housing 9 has, as a further element, a valve connector 24 which is arranged concentrically with and within the drain connector 22. In this example, the concentric axes of the outflow connector 22 and the valve connector 24 coincide concentrically with the valve longitudinal axis 1. This concentric configuration offers advantages in manufacture; In other variants, however, the axes of the drainage connection and valve connection are offset from one another, which works just as well.

An annular cavity, which forms a ventilation channel 82, is located between the valve connector 24 and the drain connector 22. This ventilation channel 82 extends axially from the end of the valve connector 24 into the cover connector 25 and is in flow connection with the ventilation openings 80 at least essential parts of the valve body 14 are arranged. The only exceptions are those areas surrounding the cavity in which, on the one hand, the inlet connector 20 is connected to the cavity and, on the other hand, the hollow housing extension 7 with its opening 15 extends as far as the valve connector 24. The opening 15 creates a connection from the interior of the valve connector 24 through the hollow housing extension 7 to the outside.

As already mentioned, the ventilation channel 82 extends from the free end of the valve connector 24 to the cover connector 25 and merges into the ventilation openings 80 in the area of the cover connector 25. The one in the Cover socket 25 screwed-in cover cylinder 32 of the valve cover 8 is in this example surrounded by the ventilation channel 80 or the ventilation openings 82 in the cover socket. As already mentioned above, it would be conceivable for a screwed on - instead of screwed - valve cover 8 that the valve cover 8 has ventilation openings and the ventilation channel is in flow connection with these.

There, where the outflow connector 22 and valve connector 24 meet the above-mentioned cavity (the cavity of the valve housing 9, which accommodates the valve body 14 and in the inlet connector 22, outflow connector 22 and cover connector 25 meet), outflow connector 22 and valve connector 24 are radially flow-tight in this way connected to one another so that the cavity exclusively forms a fluidic connection between inlet connector 20 and valve connector 24, but not a direct fluidic connection between inlet connector 20 and drain connector 22. This means that all water that is to flow from the inlet connection 20 into the drain connection 22 and further into the drain line 2020 and into the toilet bowl 2006 must flow through the mentioned cavity and the valve connection 24 into the drain connection 22. There is no direct path for the water from the inlet connection 20 into the drain connection 22.

In the embodiment of the pressure flush valve 10 shown here, in the area of the free end of the valve connector 24, which protrudes into the drain connector 22, in the ventilation channel 82 there is a flow control mechanism 70 with a holder 72, with the help of which a control element 74 is located in the ventilation channel 82 can be placed stationary. In this example, the holder 72 is designed in the form of a grille 72 ′ that can be inserted into the ventilation duct 82 and fixed there. In this example, a membrane 74 'is fixed in or on the grille 72' as a control element 74, the membrane 74 'allowing air to pass from the ventilation openings 80 and the ventilation channel 82 into the drainage connection 22 (see arrows 3000, 3001, 3002, 3003 in Fig. 3 , 4th , 7 to 9 ), but does not let water through from the direction of the drain connection 22 in the direction of the ventilation openings 80 into the ventilation channel 82 (see arrows 1003, 1004 in FIG Fig. 7 and 8th ). Instead of the membrane 74 ', a corresponding sealing mechanism is also conceivable, which would then of course have to be fixed in the ventilation channel 82 with a holder that is appropriately adapted to the mechanism.

The valve connector 24 has, on its side facing the cover connector 25, a valve seat 12 for a valve body 14 composed of several components. Valve seat 12 and valve body 14 are matched to one another in terms of their cross-section and in terms of their diameter. In the simplest form, the cross-section is circular, but polygonal shapes are also conceivable. In the example shown here, the valve body 14 is essentially cylindrical and, as stated, is composed of several components. The valve seat 12 is also cylindrical and optionally has a sealing element 12 ', as indicated in the figures.

The valve body 14 has a lower valve part 40 and an upper valve part 60, both of which are hollow and, in this particular example, are wood-cylindrical. In the assembled state and with the valve closed a first end area of the lower valve part 40 is located in the valve connector 24, while an opposite, second end area of the lower valve part 40 protrudes in the direction of the cover connector 25 from the valve connector 24 and beyond the valve seat 12. The outer diameter of the lower end region of the lower valve part 40 is selected such that it can be placed in the valve nozzle 24 in an axially movable manner (if necessary even if the valve connector 24 / valve seat 12 has a sealing element 12 ′). The length of the first end region of the lower valve part 40 is selected according to a predetermined maximum linear stroke H in the direction of the longitudinal valve axis 1 so that it can be moved linearly in the axial direction 1 in the valve connector 24 with the maximum stroke H without being moved out of the valve connector 24 .

In its first end region, the lower valve part 40 has a cylinder base 42 with a central opening 44, a sealing ring 43 resting on the inside of the cylinder base and around the central opening. The opposite, second end region of the lower valve part 40 has an internal thread and an external thread. A hollow cylindrical cap 52 with a cap cover 53 is screwed into the internal thread. The cap 52 with the cap cover 53 and the cylinder base 42 of the lower valve part 40, possibly together with part of the inner wall of the hollow-cylindrical lower valve part 40, form a valve chamber 50.

On the external thread of the second end region of the lower valve part 40 is the likewise essentially hollow cylindrical and at both of its axial ends open, upper valve part 60 screwed on. The wooden cylinder of the upper valve part 60, together with the cap cover 53 of the screwed-in lower valve part 40, forms an upwardly open cavity 35, the valve cap 52 and / or at least the cap cover 53 having openings (not shown) so that the valve chamber 50 has these openings is fluidically connected to the cavity 35 of the screwed-on, upper valve part 60.

A valve stem 46 with its plate-shaped stem head 47 is mounted in the valve chamber 50. A tappet 48 of the valve tappet 46 protrudes vertically from the plate-like tappet head 47 and, with its smaller diameter than the plate-like tappet head 47, is guided out of the valve chamber 50 through the central opening 44 in the cylinder base 42. In this exemplary embodiment, in the assembled state, the tappet 48 of the valve tappet 46 protrudes concentrically with the valve longitudinal axis 1 out of the valve chamber 50 in the direction of the drain connection 22 into the valve connection 24 - but this does not necessarily have to be the case; The pressurized water valve presented here also works with an axially offset plunger. The plate-like plunger head 47 is provided centrally on the side opposite the plunger 48 with a cylindrical, axially extending projection which serves as an inner guide for a spiral spring 54 arranged in the valve chamber 50. A sealing edge of the tappet head 47, provided between the tappet 48 and the projection and protruding radially beyond the axial projection, lies on the one hand in a sealing manner on the sealing ring 43, similar to a sealing plate, and thus indirectly on the cylinder base 42. On the other hand serves the sealing edge of the plunger head 47 as a bearing for the spiral spring 54 arranged in the valve chamber 50 and guided inside through the cylindrical, axial projection of the plunger head 47. On the side of the valve chamber 50 opposite the plunger head 47, the spiral spring 54 is on the cap cover 53 of the screwed-in cap 52 opposed.

The upper valve part 60 is screwed onto the lower valve part 40 in such a way that it axially partially surrounds the lower valve part 40 with its first end region. In this first end region of the upper valve part 60, which includes the lower valve part 40, a first flange projecting radially outward is provided for receiving a first annular sealing element 62. This first sealing element 62 is provided to interact with the valve seat 12 of the valve connector 24. The lower, first flange, together with the lower, first sealing element 62, forms a lower valve edge 68.

In the axially opposite second end region of the upper valve part 60, second flanges projecting radially outward are also provided, which serve to accommodate a second annular sealing element 64. The upper, second flanges together with the upper, second sealing element 64 form an upper valve edge 66.

The axial length of the upper valve part 60 is selected such that the upper valve part 60 in the assembled state, when the valve core 14 is seated on the valve seat 12, extends with its second upper end region into the cover chamber 34. The outer diameter of the radially outwardly protruding second flanges and the Second sealing elements 64 are selected so that they seal the cover chamber 34 against the water-carrying inlet connector 20 and, when the valve is closed, water can flow into the cover chamber 34 from the inlet connector 20 only via the connecting grooves 36 on the inside of the cover cylinder 32. Since the hollow cylindrical upper valve part 60 is open at the top and the lower valve part 40 is screwed in axially from below, the second end region of the wood-cylindrical, upper valve part 60, which engages in the cover chamber 34, expands the volume of the cover chamber 34 by the volume of its cavity 35 and by the volume of the valve chamber 50 fluidically connected to the cavity 35.

Before a flushing process, the pressurized water is at the high pressure Dl, as prevails in the pressurized water tank 2004 and the inlet port 20 and if necessary or available in a connecting line 2020 on the valve body 14, which sits sealingly on the valve seat 12. The cover space 34 is filled with pressurized water of the same pressure D1, since the cover space 34 is fluidically connected to the inlet connection 20 via the connecting grooves 36. Via the cover chamber 34, the cavity 35 and the valve chamber 50 (hereinafter only briefly summarized under the term cover chamber 34) of the valve body 14 are filled with pressurized water at the pressure D1. The water under pressure Dl in the inlet port 20 presses on the lower valve edge 68 and equally on an upper valve edge 66 of the valve body 14. Towards the bottom, the valve seat 12 prevents the valve body 14 from moving downwards and upwards in the direction of the valve cover 8 equal to the pressure Dl standing water in the lid chamber 34 an upward movement of the valve body, so that the valve body 14 cannot evade the pressure 1 of the water standing in the inlet connection 22 in any direction. The valve 10 is therefore closed and the valve connector 24 and drain connector 22 are empty, that is to say free of water. In them there is only air (arrows 3003) under atmospheric pressure, which has flowed in via the ventilation duct 82 and the ventilation openings 80 (arrows 3000, 3002), and if available (as in the embodiment shown in the figures) via the control mechanism 70 with its Control element 74.

To open the pressurized water valve 10, the trigger 18 is actuated; in this case the push button 18 'is pressed. As a result, the plunger 19 connected to the push button 18 'is pressed against the plunger 48 of the valve plunger 46 and this, together with its plunger head 47 resting on the sealing ring 43, is capped out of its rest position. (An example of such a tilting of the valve stem 46, but with a slightly different trigger mechanism, is purely schematically in Fig. 10 As a result of the tilting, a gap is formed between the plunger head 47 and the sealing ring 43 and a flow connection is established between the valve chamber 50 and the central opening 44 in the cylinder base 42 of the valve chamber 50. Via this flow connection, the water under pressure 1 flows out of the valve chamber 50, from the cavity 35 and the cover space 34 into the valve connector 24 and further into the drain connector 22. Only when the return spring 27 in the actuating device 16 returns the trigger 18 / push button 18 'together with the plunger 19 to the starting position does the valve stem 46 also return to its starting position. By the coil spring 54 the plunger head 47 is pressed securely sealingly onto the sealing ring 43 again and closes the central opening 44 in the cylinder base 42 and thus the valve chamber 50 as well as the cavity 35, which is in flow connection with it, and the cover chamber 34.

Because the water under pressure Dl flows out of the cover chamber 34 and the adjoining spaces 35, 50, the pressure in the cover chamber 34 is reduced. The valve body 14 can now follow the pressure Dl of the water (arrow 1000) in the inlet connection 20 evade the top, since the pressure Dl on the upper valve edge 66 no longer experiences any counterpressure Dl in the cover chamber 34 from a certain point in time (see FIG Figures 7 and 8th ). As a result, the water in the inlet connection 20 pushes the valve body 14 upwards into the cover chamber 34 the cover chamber 34 is moved until the cap cover 53 comes into abutment with the adjusting screw 28 ', whereby the maximum stroke H of the valve body 14 is determined and thus also the size of the released flow gap S above the valve seat 12. Via this gap S, the flows in the inlet port 20 pressurized water (1000) into the valve connector 24 (arrow 1002) and further through the drain connector 22 (arrow 1003) into the drain line 2022 and the toilet bowl 2006. The water flows until the pressurized water tank 2004 is empty, whereby the pressure of the flowing water decreases over time.

If, as in the example shown here, a control mechanism 70 is provided in the ventilation duct 82, Thus, the control mechanism 70 with its control element 74 prevents water from flowing into the ventilation channel 80 during the first powerful outflow of water (arrows 1000, 1002, 1003) through the valve connector 24 into the drain connector 22 and possibly from splashing out of the ventilation openings 82.

If the pressurized water tank 2004 is empty and no more water flows into the inlet port or only water at a lower pressure flows for a certain time (namely until the pressurized water tank is filled with water again), the lid spring 56 presses the valve body 14 securely in a sealing manner its starting position on the valve seat 12 and interrupts the flow connection between inlet connection 20 and drain connection 22. The pressurized water tank 2004 of the pressurized water flushing system fills with water again, as does the inlet connection 20 and any connecting line 2020. Via the grooves 36 on the inside of the cover connection 32, the cover chamber 34 and the adjoining spaces 35, 50 also fill up again with water. The water continues to flow until the water is again under the pressure Dl and presses on the valve body 14 from the outside or from the inlet connector 20 with the pressure Dl as well as from the inside of the cover chamber 34 and the adjoining spaces 35, 50 There is thus again a pressure equilibrium with the pressure D1 between the side of the inlet connection 20 and the side of the cover chamber 34, so that the valve body 14 is reliably held on the valve seat 12 again.

In the event that, for example, due to a pipe break or another accident in the water supply line in 2014 ( Fig. 1 ) If there is negative pressure, it must be prevented be that via the pressurized water tank 2004 and the pressurized water valve 2010, 10 dirty water is sucked into the water supply line 2014. This will (see Figure 9 ) in the pressurized water valve 10 presented here in that, even if the valve body 14 is no longer seated sealingly on the valve seat 12 due to the negative pressure, air via the ventilation openings 80 (arrows 3000), the ventilation channel 82 (arrows 3002), the drain connection 22 (Arrow 3004), the valve connector 24 (arrow 3006) and further via the inlet connector 20 (arrow 3008) in the direction of the pressurized water tank 2004 and water supply line 2014. The air in the drain connection 22 and in the valve connection 24 thus form something like a flow cushion consisting of air (arrows 3004, 3006), which stands above the drain line 2022 and prevents dirty water from being sucked in from the toilet bowl 2006.

As mentioned above, in Figure 10 schematically shows an alternative way of how the valve stem 46 can be tilted out of its rest position. To do this, in Fig. 10 only a small section of the alternative pressurized water valve 10 ′ with the valve chamber 50 and the inlet connection 20 is shown. The pressurized water valve 10 'sketched here functions, apart from the other trigger mechanism, in the same way as the pressurized water valve 10 described above. Figures 2 to 8 ) a pressure lever 92 acting via a joint 90 is used here, which in this example engages via the cover chamber 34 and is connected to the valve stem 46 in the valve chamber 50 of the valve body 14. The lever 92 can optionally again have a deflection 94 learn how this is indicated here. For a well-defined, guided movement of the valve stem 46, the joint 90 is mounted on the one hand in a joint slide 96 and on the other hand in an elongated hole 88 in the stem 48 of the valve stem 46 that extends along a longitudinal axis 49 of the stem.

If pressure is exerted on the lever 92 from above (double arrow c), the articulated slide 96 moves to the right (double arrow a) and with a corresponding movement of the joint 90 in the elongated hole 88 (double arrow b), the valve stem 46 is tilted from its rest position. The plunger head 47 in the valve chamber 50 also tilts and releases at least part of the central opening 44 in the cylinder base 42 of the valve chamber 50. The valve body 14 is then released from the valve seat 12 and the pressurized water flushing begins. If the pressure on the lever 92 decreases (double arrow c), the articulated slide 96 moves back to the left (double arrow a) and the valve tappet tilts back into its starting position (double arrow b), in which the tappet head 47 the central opening 44 in the cylinder base 42 the valve chamber 50 closes again. If the pressurized water has drained off and only water under lower pressure or no more water flows in, a spring (not shown here) presses the valve body 14 back onto the valve seat 12 and water flows into the inlet connection 20 and through grooves (not shown here) ) into the cover space 34 and the valve chamber 50.

Based on Figures 11 to 16 Another embodiment of the pressurized water valve 200 is described below explained, in which rinsing is possible with two different amounts of water.

The basic principle of the further embodiment of the pressurized water valve 200 is constructed in the same way as that based on FIG Figures 2 to 9 This means that this valve 200 also has a valve body 14 on a valve seat 12 and a cover space 34 arranged above the valve body 14, which is filled with pressurized water between two flushing processes via connecting grooves (not shown here). The cover space 34 is in turn closed above the valve body 14 with a valve cover 8 which is screwed or screwed into a cover socket 25 of the valve housing 9. The cover socket 25 or cover 8 is in turn provided with ventilation openings 80 which are connected to a ventilation channel 82, as has already been done for the pressurized water valve 10 in FIG Figures 2 to 9 was shown. Since the construction and function have already been extensively based on the Figures 2 to 9 was explained and illustrated, was used for the here in the Figures 11 to 16 The illustrated embodiment of the pressurized water valve 200 has omitted a detailed representation and identification with reference symbols for the purpose of better clarity and comprehensibility.

The further embodiment of the pressurized water valve 200 differs from the pressurized water valve 10 of FIG Figures 2 to 9 in that the valve body 14 is compact and therefore not hollow, and in that two actuating elements 210, 250 are provided, which open up a choice between two different amounts of flushing water. In the example shown here, the two are Actuating elements 210, 250 combined in an assembly 205.

Each actuating element 210, 250 has a flooding chamber 220, 260 which is fluidically connected to the cover chamber 34 of the pressure flush valve 200 via a connecting channel 292. On their side opposite the connecting channel 292 in terms of flow, the flooding chambers 220, 260 are connected in terms of flow to a water outlet 290. Each actuating element 210, 250 also has a trigger 211, 251, which can be operated from the outside and extends into the connection between the respective flooding chamber 220, 260 and the water outlet 290, where it enables this fluidic connection to be closed and opened in the manner of a valve.

The water outlet 290 is connected to a sewer line, for example as shown in FIG Fig. 1 is marked with the reference number 2008. This connection can be implemented via a separate drain line (not shown). The water outlet 290 can, for example, also be connected to the drain connection 22 or the valve connection 24 of the pressure flush valve 200 for discharging the water from the flooding chambers 220, 260.

In the example shown here, the flooding chambers 220, 260 each have a regulating body 222, 262 which can be moved linearly in the respective flooding chamber 220, 260 in a manner similar to a piston. Each flooding chamber 220, 260 is provided with grooves (not shown) on its inner wall analogous to the cover chamber 34 of FIG Pressurized water valve. It is also conceivable, however, that instead of the inner walls of the flooding chambers 220, 260, the regulating bodies 222, 262 are provided with grooves. Between two flushing processes, the associated flooding chamber 220, 260 is filled with pressurized water via the above-mentioned grooves, which water flows in via the cover chamber 34 and the connecting channel 292. An adjusting screw 212, 252 is screwed into each flooding chamber 220, 260, which limits the stroke hl, h2 of the regulating body 222, 262 in the flooding chamber 220, 260, which ultimately also defines the passage gap S in the pressure flushing valve 200 and thus the flushing water volume of the pressurized water valve 200 is.

The triggers 211, 251 keep the water outlet 290 closed between two flushing processes. The cover chamber 34, the connecting channel 292 and the flooding chambers 220, 260 are filled with pressurized water which is under a pressure Dl which (see description of the embodiment of FIG Figures 2 to 9 ) is greater than the water pressure D2 under the influence of the atmosphere. If, for example, the trigger 251 is now actuated, as shown in FIG Fig. 13 and 16 As is shown by way of example, the water flows out of the flooding chamber 260 via the water outlet 290. The pressure in the flooding chamber 260 on the side of the adjusting screw 252 decreases and falls to atmospheric pressure D2. The pressurized water in the connecting line and the cover chamber 34 under pressure Dl pushes in and moves the regulating body 262 until it comes into abutment with the adjusting screw 252. As a result, the pressure in the cover chamber 34 also decreases and the valve body 14 is raised by the pressure of the pressurized water in the inlet connection 20. The flushing water flows through the gap S that forms above the valve seat 12 under pressure Dl from a pressurized water tank connected to the inlet port 20 into the drain port 22 and further into the toilet bowl.

In this one, in this one Figures 11 to 17 shown in the example - unlike the one in the Figures 2 to 9 Example shown - the valve port 24 has a larger diameter than the drain port. The valve connector 24 surrounds the outflow connector 22, the outflow connector 22 protruding beyond the valve connector 24 in the outflow direction and wherein the valve connector 24 and the outflow connector 22 are preferably arranged concentrically. This design of valve connector and outlet connector has been chosen because in this example the pressurized water tank 2004 merges directly into the inlet connector 20.

Reset devices in this case designed as reset springs - which are not shown here for the sake of a better overview - ensure that the regulating body 262 and the valve body 14 are returned to their original position. After the flushing process, cover chamber 34, connecting channel 292 and flooding chamber 260 are filled with water again via the connecting grooves in the area of the cover chamber 34 and the grooves in the flooding chamber 260 or in the control body 262 until the water there is under the same pressure D1 as in the inlet port 20 or the pressurized water tank 2004.

As a rule, the actuating elements 210, 250 are designed with the capacity of their flooding chambers 220, 260 or the adjusting screws 212, 252 are screwed in such that, depending on which trigger 211, 251 is actuated, a different amount of water is made available for rinsing. In the example shown here (see in particular Figures 14 to 16 ) when the trigger 211 is actuated, full flushing, for example with 3 liters, is enabled because the stroke hl of the control body 222 in the flooding chamber 220 is greater than the stroke h2 of the control body 262 in the flooding chamber 260, so that the valve body 14 when the trigger is actuated 211 performs a full stroke from a to c ( Fig. 15 ; large volume of flushing water). In contrast, when the other trigger 251 is actuated, the stroke of the valve body 14 only extends from a to b ( Fig. 16 ), the passage gap S above the valve seat 12 is correspondingly smaller and it can only be flushed with about half the amount of water, i.e. approx. 1.5 liters.

In the Figures 11 to 16 the alternative embodiment of the pressurized water valve 200 with the two actuating elements 210, 250 for different amounts of flushing water is shown in a compact design. The two actuating elements 210, 250 are combined in a compact assembly 205 and directly connected to the valve cover 8 of the valve. With a corresponding configuration of the valve cover 8, the assembly 205 can, so to speak, be connected to the valve cover 8 by means of a screw connection instead of the adjusting screw 28 ′, the screw connection containing the connection channel 292.

As based on the further embodiment of the pressurized water valve 300 in FIG Figure 17 However, it is also possible to close the compact assembly 205 with the two actuating elements 210, 250 for different amounts of flushing water away from the valve housing 9 place. For this purpose, only the connecting channel 292 between the cover chamber 34 of the valve and the flooding chambers 220, 260 of the actuating elements 210, 250 and a line 298 from the water outlet 290 to the drain spout 22 must be provided in a corresponding length.

It is clear to the person skilled in the art that and in what way the described embodiments or the details described with reference to the exemplary embodiments can be meaningfully combined within the scope of the patent claims. For reasons of space, however, it is not possible to depict and / or describe all possible and meaningful combinations in detail.

Claims (20)

1. Water pressure valve (10, 10', 200, 300) for a toilet facility (2000)including:

   • The valve housing (9) with an inlet sleeve (20) and an outlet sleeve (22) ;

   • The valve seat (12) and valve body (14) which are arranged between the inlet sleeve (20) and the outlet sleeve (22) in such a way that, by actuating the valve, a defined volume of water for flushing, passing through the outlet sleeve (22) into a toilet bowl is controllable;

   • The actuating device (16) by means of which the valve can be actuated and the valve body (14) can be removed from the valve seat (12);

   • The resetting device which moves the valve body (14) back to the valve seat (12);

   • The adjusting element (28), by means of which the volume of water can be adjusted, which can be directed into the toilet bowl for flushing;

   • The cover nozzle (25), arranged in the stroke direction of the valve body (14) with a cover chamber (34), where the cover chamber (34) is fluidically connected to the outlet sleeve (22) and / or the valve sleeve (24), and therefore it is possible, by means of an actuating device to open or by means of at least one part of the resetting device to close this connection;

   • The valve sleeve (24), extending in the same direction as the outlet sleeve (22),
   characterized in that

   • The cover chamber (34) is fluidically connected to the inlet sleeve only by means of connecting grooves (36),

   • The valve sleeve (24) is axially shorter than the outlet sleeve (22),

   • The outlet sleeve (22) and the valve sleeve (24), radially encircling a circular hollow space, representing a ventilation duct (82), where the ventilation duct (82) has a flow connection with ventilation openings (80) and is arranged in the area of the cover nozzle (25).
2. The water pressure valve (10, 10', 200, 300) according to claim 1, characterized in that the valve sleeve (24) has a smaller diameter than the outlet sleeve (22) and leads into the outlet sleeve (22), and furthermore the valve sleeve (24) and the outlet sleeve (22) are preferably concentrically arranged.
3. The water pressure valve (10, 10', 200, 300) according to claim 1, characterized in that the valve sleeve (24) having a larger diameter than the outlet sleeve (22) encircles this outlet sleeve (22), and the outlet sleeve (22) extends beyond the valve sleeve (24) in the outflow direction and the valve sleeve (24) as well as the outlet sleeve (22) are preferably concentrically arranged.
4. The water pressure valve (10, 10', 200, 300) according to one of the preceding claims, characterized in that the valve housing (9) is made as one piece, especially together with the inlet sleeve (20), the cover nozzle (25), the valve sleeve (24) and the outlet sleeve (22), where in particular the valve housing (9) is made as casted part or as by injection casted part.
5. The water pressure valve (10, 10', 200, 300) according to one of the preceding claims, characterized in that the valve body (14) is essentially made as a hollow piece and its, at least one cavity (35, 50) is fluidically connected to the cover chamber (34), wherein the at least one cavity (35, 50) has a central opening (44) in the direction of the outlet sleeve (22), and where by means of one via the actuating device controllable valve stem (46) the central opening (44) can be closed or opened like a valve.
6. The water pressure valve (10, 10', 200, 300) according to claim 5, characterized in that the valve stem (46) shows a valve stem head (47) closing the central opening (44), from which a stem (48) having a smaller diameter than the stem head (47) protrudes, and the stem (48) together with the stem head (47) is tiltable from the rest position by means of the actuating device.
7. The water pressure valve (10, 10', 200, 300) according to claim 6, characterized in that the valve stem (48) extends from the stem head (47) so, that it protrudes from the hollow space (50) through the centric opening (44) toward the outlet sleeve (22) and the stem head (47) is tiltable from the rest position by means of a stamp (19), which forms part of the actuating device (16), whereas the valve housing (9) has an extension (7), located inside the actuating device (16).
8. The water pressure valve (10, 10', 200, 300) according to claim 6, characterized in that the stem (48) extends from the stem head (47) so, that it penetrates to the inside of the cover chamber (34), and is controllable by means of a push lever (92), representing part of the actuating device, which is controllable via the valve body (14) from the side of the cover chamber.
9. The water pressure valve (10, 10 ', 200, 300) according to one of the preceding claims, characterized in that the adjusting element (28) is represented by an adjusting screw (28'), protruding into the cover chamber (34) from the opposite side of the valve body (14).
10. The water pressure valve (10, 10 ', 200, 300) according to one of preceding claims, characterized in that the cover chamber (34) is fluidically connected to at least one, preferably two, and possibly also more than two flooding chambers (220, 260) of an actuating device, whereas at least one flooding chamber (220, 260), or each of the flooding chambers (220, 260) on its side opposite the cover chamber (34) is fluidically connected with the water outlet (290), and the connection between the respective flooding chamber (220, 260) and the water outlet (290) is provided with a trigger (211, 251), which can be operated from the outside and extends up into the connection between the respective flooding chamber (220, 260) and the water outlet (290), allowing there a valve-like closing and opening of this fluidical connection, whereas the opening of this connection also allows water to drain from the cover chamber (34).
11. The water pressure valve (10, 10 ', 200, 300) according to one of claims 1 to 4, characterized in that the cover chamber (34) is fluidically connected to at least one, preferably two, and possibly also more than two flooding chambers (220, 260) of an actuating device, where the valve body (14) is compact and at least one flooding chamber (220, 260), or each flooding chamber (220, 260) on its to the cover chamber (34) opposite side is provided with a flow connection toward the outlet (290), whereas the connection between the respective flooding chamber (220, 260) and the water outlet (290) is equipped with a trigger (211, 251) which can be operated from the outside, extending into the connection between the respective flooding chamber (220, 260) and the water outlet (290), allowing there a valve-like closing and opening of this current connection, whereas the openings of this connection also allows water to drain from the cover chamber (34).
12. The water pressure valve (10, 10', 200, 300) according to claim 10 or 11, characterized in that at least two flooding chambers (220, 260) are provided, within which the regulating bodies (222, 262) movable like a piston are arranged, and where the stroke (h1, h2) of regulating bodies (222, 262) may be adjusted by means of adjusting screws (212, 252), whereas the stroke (h1, h2) of regulating bodies (222, 262) determines the volume of water, escaping from the cover chamber (34) through the respective flooding chamber, whereby also the stroke H of the valve body (14) during the toilet flushing and also the gap S above the valve seat (12)and the amount of water during the flashing process are defined.
13. The water pressure valve (10, 10', 200, 300) according to claim 12, characterized in that for each of at least two flooding chambers (220, 260) a return device, in particular a return spring is provided, moving after the outflow of pressurized water from the flooding chamber (220, 260) the corresponding regulating bodies (222, 262) back into its starting position, and where each of the at least two flooding chambers (220, 260) shows grooves on their inner wall, or the groves are present on the respective regulating body (222, 262), allowing after the flushing a repeated water flow from the cover chamber (34) into flooding chambers (220, 260).
14. The water pressure valve (10, 10 ', 200, 300) according to one of claims 11 to 13, characterized in that one flooding chamber (220, 260) or each of at least two flooding chambers (220, 260) together with their trigger (211, 251,) belong to one control element (210, 250) and all actuating devices (210, 250) together with the water outlet (290) are integrated in one construction unit (205), where in particular at least one, or two flooding chambers (220, 260), the water outlet (290) and the flow connection between both of them are made as one casted part or by injection casted part.
15. The water pressure valve (10, 10', 200, 300) according to claim 14, characterized in that the construction unit (205) with at least one actuating device (210, 250) is through a screw connection directly connected to the cover (8) of the water pressure valve (10, 10', 200, 300), which on one side closes the cover chamber (34), whereas the screw connection comprises a connection channel (292), representing a flow connection between at least one, possibly two flooding chambers (220, 260) and the cover chamber (34).
16. The water pressure valve (10, 10', 200, 300) according to claim 14, characterized in that the construction unit (205) with at least one actuating device (210, 250) is through a connection line (294) connected to the cover (8) of the water pressure valve (10, 10', 200, 300), which on one side closes the cover chamber (34), whereas the connection line (294) comprises a connection channel (292), representing a flow connection between at least one, possibly two flooding chambers (220, 260) and the cover chamber (34).
17. The water pressure valve (10, 10 ', 200, 300) according to one of claims 10 to 16, characterized in that the water outlet (290) is, for water drainage, connected to the outlet sleeve (22) or to the valve sleeve (24).
18. The pressurized water flushing system (2002) for a toilet facility (2000) comprising:

    • at least one pressurized water tank (2004) which can be connected upstream to a local pressurized water or drinking water pipe (2014) and which is downstream connected to the pressurized water valve (2010, 10, 10 200, 300),

    • and a downstream of the water valve (2010, 10, 10 ', 200, 300) located and for the water supply connected toilet bowl (2006), which may be downstream coupled to the sewer line (2008);
    characterized in that

    • the pressure water valve (2010, 10, 10', 200, 300) is made according to one of preceding claims;
19. The pressurized water flushing system (2002) according to claim 18, characterized in that the pressurized water tank (2004) is directly connected to the inlet sleeve (20) of the pressure water valve (2010, 10, 10', 200, 300) or smoothly passes into it.
20. The pressurized water flushing system (2002) according to claim 18, characterized in that the water tank (2004) is connected to the inlet sleeve (20) of the pressure water valve (2010, 10, 10', 200, 300) by means of a connection line (2020).

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