EP4227469A1 - Flushing system - Google Patents

Abstract

A flushing system (1) comprises a flushing tank (2) with a first tank space (3) and a second tank space (4), a filling valve (5) for filling the flushing tank (2) with flushing water, a first flushing valve arranged in the first tank space (3). (6), a second flushing valve (7) arranged in the second tank space (4), and a sanitary article (8) with a receiving space (9), a first flushing opening (10), which can be supplied with flushing water via the first flushing valve (6), a second flushing opening (11), which can be supplied with flushing water via the second flushing valve (7), and a siphon section (12) adjoining the receiving space (9) and an outflow section (13) adjoining the siphon section (12), the first Flushing valve (6) is a gravity flushing valve, the flushing water in the first tank space (3) flowing out under the action of gravity, and the second flushing valve (7) being a pressure flushing valve, the flushing water in the second tank space (4) flowing out under the action of water pressure.

Description

TECHNICAL AREA

The present invention relates to a flushing system according to claim 1.

STATE OF THE ART

Various flushing systems for toilets and urinals are known from the prior art. Basically, a distinction must be made between pressure flushing, in which the flushing water is brought into the toilet bowl or urinal at line pressure, and gravity flushing, in which the flushing water is brought into the toilet bowl or urinal under the effect of gravity.

The WO 2016/016471 discloses a flushing system in which flushing water is brought from the cistern into the toilet bowl or urinal with a venturi nozzle. Disadvantage of WO 2016/016471 is that the volume flow of the rinsing water is in some cases too small for efficient rinsing of the siphon due to the design of the Venturi nozzle.

PRESENTATION OF THE INVENTION

Proceeding from this prior art, the invention is based on the object of specifying a flushing system which overcomes the disadvantages of the prior art. In particular, it is a preferred object of the invention to specify a flushing system which ensures more efficient flushing.

A flushing system according to claim 1 solves this problem. Accordingly, a flushing system comprises a flushing tank with a first tank space and a second tank space, a filling valve for filling the flushing tank with flushing water, a valve arranged in the first tank space first flushing valve, a second flushing valve arranged in the second tank space, and a sanitary article with a receiving space, a first flushing opening, which can be supplied with flushing water via the first flushing valve, a second flushing opening, which can be supplied with flushing water via the second flushing valve, and a Recording space adjoining siphon section and a drain section adjoining the siphon section. The first flushing valve is a gravity flushing valve, flushing water in the first tank space flows out under the action of gravity, and the second flushing valve is a pressure flushing valve, flushing water in the second tank space flows out under the action of water pressure.

The arrangement of the two flushing valves has the advantage that the flushing process can be optimized. The flushing water can be supplied in surges via the gravity flushing valve and supply under pressure can be achieved via the pressure flushing valve. The surge-like flushing has the advantage of good flushing of the siphon section and the supply under pressure has the advantage of good surface cleaning of the receiving space.

The flushing water is preferably supplied to the sanitary article at different locations via the two flushing valves, as a result of which the flushing process can be further optimized.

The filling valve is preferably directed into the first tank space in such a way that the first tank space is filled through the filling valve, and the first tank space has an overflow edge over which, when the first tank space is filled and the first tank space is filled further or continuously, the flushing water from the first Tank room can be guided into the second tank room. Due to the arrangement of the overflow edge, both tank spaces can be filled with a single filling valve, which makes filling the cistern more efficient.

The second rinsing opening of the sanitary article is preferably located below the overflow edge when viewed in the installed position, with the height of the second rinsing opening defining an overflow height, which overflow height is above a nominal water level in the second tank space. This has the advantage that if the filling valve is defective and can no longer be closed, the flushing water flowing into the first tank space can flow out over the overflow edge into the second tank space and from there through the second flushing opening into the receiving space of the sanitary article.

In addition to overcoming the disadvantages of the prior art, an example of a flushing system also solves the task of efficiently filling a flushing tank. Accordingly, a flushing system comprises a flushing cistern with a first tank space and a second tank space, a filling valve for filling the flushing cistern with flushing water, a first flushing valve arranged in the first tank space, a second flushing valve arranged in the second tank space, and a sanitary article with a receiving space, a first flushing opening which can be supplied with flushing water via the first flushing valve, a second flushing opening which can be supplied with flushing water via the second flushing valve, as well as a siphon section adjoining the receiving space and an outflow section adjoining the siphon section. The filling valve is directed into the first tank space in such a way that the first tank space is filled through the filling valve, and the first tank space has an overflow edge over which, when the first tank space is filled and the first tank space is filled further or continuously, the flushing water from the first tank space can be guided into the second tank room.

Due to the arrangement of the overflow edge, both tank spaces can be filled with a single filling valve, which makes filling the cistern more efficient.

The second rinsing opening of the sanitary article is preferably located below the overflow edge when viewed in the installed position, with the height of the second rinsing opening defining an overflow height, which overflow height is above a nominal water level in the second tank space. This has the advantage that if the filling valve is defective and can no longer be closed, the flushing water flowing into the first tank space can flow out over the overflow edge into the second tank space and from there through the second flushing opening into the receiving space of the sanitary article.

Further advantageous embodiments for the flushing system according to claim 1 and for the flushing system according to the example will now be described below.

The overflow edge is positioned in such a way that the flushing water flows over the overflow edge, that is to say it flows off above the overflow edge over the overflow edge.

When the cistern is completely full, the nominal water level in the first tank space is preferably above the nominal water level in the second tank space. This results in the Advantage that a higher water column, that is, a greater potential energy, can be provided for the gravity flush valve.

The first tank space is preferably located entirely within the second tank space. This means that the second tank space surrounds the first tank space on its outside. This has the advantage that the length of the overflow edge can be made as large as possible, which allows the second tank space to be filled efficiently.

The overflow edge preferably extends completely around the first tank space.

The volume of the first tank space is preferably smaller than the volume of the second tank space.

The first flushing valve and the first flushing opening are preferably designed in such a way that the flushing water can be introduced into the outflow section, and the second flushing valve and the second flushing opening are designed in such a way that the flushing water can be introduced into the receiving space. As a result, a surge-like flushing into the outflow section can be provided via the gravity flushing valve, as a result of which a suction effect is created on the siphon section and the flushing of the siphon can be supported. The flushing of the surfaces of the receiving space can be achieved via the pressure flushing valve.

During a scavenging process, the first scavenging valve is preferably opened after the second scavenging valve and/or the first scavenging valve is closed before the second scavenging valve. The gushing flushing through the gravity flushing valve thus takes place over a shorter period of time than flushing via the pressure flushing valve.

The first flushing valve preferably has an actuating float, the actuating float floating on the flushing water in the second tank space in such a way that the first flushing valve can be actuated based on the water level in the second tank space. In this way, a very simple coordination of the flushing sequence can be achieved.

The first scavenging opening is preferably arranged at the base of the first tank chamber and the first scavenging valve has a valve body which can be lifted from a closed position into a scavenging position by a valve seat surrounding the scavenging opening.

The first rinsing opening preferably opens into the outflow section after the siphon section.

Preferably, the second flushing valve has an inlet which can be connected to a building-side network of pipes in such a way that the second flushing valve is supplied with flushing water at line pressure, the flushing valve being connected to a first section of a flushing line with a jet pump, the jet pump having a Venturi nozzle with a suction opening open towards the cistern, wherein water under line pressure can be fed into the Venturi nozzle when the flushing valve is open, such that water from the second water tank can be fed with the Venturi nozzle via the suction opening into a second section of the flushing line leading to the sanitary article.

The flushing line preferably has a pipe interrupter for separating drinking water from flushing water. The pipe interrupter is preferably located above the overflow edge when viewed in the installed position, so that the pipe interrupter does not come into contact with the flushing water in the cistern.

Seen in the installation position, the cistern preferably lies below an upper edge which closes off the sanitary article at the top.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

eine teilweise geschnittene Perspektivansicht eines Spülsystems nach einer Ausführungsform der vorliegenden Erfindung;

Fig. 2.

eine Draufsicht des Spülsystems nach Figur 1;

Fig. 3

eine weitere Schnittdarstellung des Spülsystems nach den vorhergehenden Figuren;

Fig. 4

eine weitere Schnittdarstellung des Spülsystems nach den vorhergehenden Figuren; und

Fig. 5

eine perspektivische Darstellung des Spülkastens eines Spülsystems nach den vorhergehenden Figuren.

Preferred embodiments of the invention are described below with reference to the drawings, which are for explanation only and are not to be interpreted as restrictive. In the drawings show:

1

Figure 12 is a perspective view, partially in section, of a flushing system according to an embodiment of the present invention;

2

a top view of the flushing system figure 1 ;

3

a further sectional view of the flushing system according to the preceding figures;

4

a further sectional view of the flushing system according to the preceding ones Characters; and

figure 5

a perspective view of the cistern of a flushing system according to the preceding figures.

DESCRIPTION OF PREFERRED EMBODIMENTS

In the figures a preferred embodiment of a flushing system 1 according to the present invention is shown. The flushing system 1 comprises a flushing tank 2 with a first tank space 3 and a second tank space 4, a filling valve 5 for filling the flushing tank 2 with flushing water, a first flushing valve 6 located in the first tank space 3, a second flushing valve 7 located in the second tank space 4 and a Sanitary articles 8. Rinsing water can be supplied to the sanitary articles 8 via the flush valves 6, 7. The flushing water is preferably supplied to the sanitary article 8 at different locations.

In the embodiment shown, the sanitary article 8 is a toilet bowl. However, the sanitary article 8 can also be a urinal. The sanitary article 8 comprises a receiving space 9 , a first flushing opening 10 which can be supplied with flushing water via the first flushing valve 6 and a second flushing opening 11 which can be supplied with flushing water via the second flushing valve 7 . A siphon section 12 is also connected to the receiving space 9 . The siphon section 12 is followed by a drain section 13 .

In the embodiment shown, the first flushing valve 6 is a gravity flushing valve, the flushing water in the first tank space 3 flowing out under the action of gravity. The second flushing valve 7 is a pressure flushing valve, the flushing water in the second tank space 4 flowing out under the action of water pressure.

In the embodiment shown, the filling valve 5 is directed into the first tank space 3 . The filling valve 5 accordingly fills the first tank space 3 with flushing water. The first tank space 3 has an overflow edge 14 over which the flushing water flows from the first tank space 3 into the second tank space 4 when the first tank space 3 is filled and the first tank space 3 is filled further.

In another embodiment that is not shown, the flushing system 1 is designed without an overflow edge 14 . Here, the two tank rooms 3, 4 otherwise with filled with the filling valve 5. In a further embodiment, also not shown, the flushing valves can be provided elsewhere.

In the embodiment shown, the first scavenging valve 6 is assigned to the first scavenging opening 10 . In the embodiment shown, the first flushing opening 10 opens into the outflow section 13 . A gush-like flushing into the outflow section 13 can be provided via the first flushing valve 6 . The first flushing valve 6 preferably comprises a valve body 16 which can be lifted from a valve seat 17 so that the flushing water in the first tank space 3 can be fed to the outflow section 13 . The valve seat 17 is preferably arranged at the lowest point of the first tank space 3 .

The first flushing valve 6 has an actuating float 15 with which the flushing valve can be controlled. The actuating float 15 floats on the flushing water in the second tank space 4 in such a way that the first flushing valve 6 can be actuated based on the water level in the second tank space 4 .

In the embodiment shown, the second scavenging valve 7 is assigned to the second scavenging opening 11, as mentioned. The second flushing opening 11 opens into the receiving space 9 and ensures that the surface of the receiving space 9 is flushed.

The second flushing valve 7 has an inlet 18 which can be connected to a mains network in the building in such a way that the second flushing valve 7 is supplied with flushing water under line pressure. The flushing valve 7 is connected to a first section 19 of a flushing line with a jet pump 20 , the jet pump 20 having a Venturi nozzle 21 with an intake opening 22 open towards the flushing tank 2 . When the flushing valve 7 is open, water under line pressure can be fed into the Venturi nozzle 21 such that the Venturi nozzle 21 can feed water from the second water tank 4 via the suction opening 22 into a second section 23 of the flushing line leading to the sanitary article 8 . Furthermore, a pipe interrupter 24 is also arranged in the flushing line.

The second scavenging valve 7 is actuated via an actuating element 30 . The flushing valve 7 can be closed again via a float. For example, via the actuation float 15 mentioned herein, which also acts on the first flushing valve 6 . The actuating float 15 acts on the first flushing valve 6 via a float bridge 31.

In a preferred flushing regime, the second flushing valve 7 is opened in a first step, so that flushing water flows out of the second tank space 4 . When a predetermined water level is reached in the second tank space 4 , the first flushing valve 6 is opened so that flushing water flows out of the first tank space 3 . The flushing water from the first tank space 3 flows off in a surge. As soon as the first tank space 3 has been emptied, the first flushing valve 6 closes again. The outflow from the second tank space 4 continues. The second flushing valve 7 closes as soon as the second tank space 4 has been emptied. The expression emptied essentially means emptying to a certain water level or complete emptying. After flushing, the cistern 2 is refilled via the filling valve 5 .

In the embodiment shown, the filling valve 5 has a float 26, via which the filling valve 5 can be opened or closed. In the embodiment shown, the float 26 is controlled by the water level in the second tank space 4 . As mentioned, the filling valve 5 fills the first tank space 3 . For the filling of the first tank space 3 , the filling valve 5 protrudes with a transition tube 27 into the first tank space 3 . The transition tube 27 has the outlet of the filling valve 5 . Furthermore, the filling valve 5 has an inlet 28 which can be connected to a line network. As soon as the flushing water in the second tank space 4 has reached the desired filling level, the filling valve 5 is closed accordingly by the float 26 .

In the embodiment shown, the filling valve 5 is in contact with the first flushing valve 6 via a control line 29 . When the first flushing valve 6 is open, the filling valve 5 is activated via the control line 29 in such a way that the filling valve 5 remains closed.

Based on the view of figure 3 the different water levels are explained in more detail. The overflow edge 14 lies above the second scavenging opening 11 which leads into the receiving space 9 . If the filling valve is defective, water can flow off into the receiving space 9 via the flushing opening 10 . Above the overflow edge 14 said pipe interrupter 24 is arranged. The nominal water level in the first tank room 3 is higher than the nominal water level in the second tank room 4. The nominal water level in the second tank room 3 is below the second flushing opening 11. REFERENCE LIST 1 flushing system 27 transition pipe 2 cistern 28 entry 3 first tank room 29 control line 4 second tank room 30 actuator 5 filling valve 31 float bridge 6 first flush valve 7 second purge valve 8th sanitary ware 9 recording room 10 first flushing port 11 second flushing ports 12 siphon section 13 drain section 14 overflow edge 15 actuating float 16 valve body 17 valve seat 18 inlet 19 first section 20 jet pump 21 venturi nozzle 22 intake port 23 second part 24 pipe interrupter 25 upper edge 26 swimmer

Claims (14)

Flushing system (1) comprising a cistern (2) with a first tank space (3) and a second tank space (4), a filling valve (5) for filling the cistern (2) with flushing water, a first flushing valve (6) arranged in the first tank space (3), a second flushing valve (7) arranged in the second tank space (4), and a sanitary article (8) with a receiving space (9), a first flushing opening (10) which can be supplied with flushing water via the first flushing valve (6), a second flushing opening (11) which can be supplied with flushing water via the second flushing valve (7). and a siphon section (12) adjoining the receiving space (9) and an outflow section (13) adjoining the siphon section (12), wherein the first flushing valve (6) is a gravity flushing valve, wherein the flushing water in the first tank space (3) flows out under the action of gravity and wherein the second flushing valve (7) is a pressure flushing valve, the flushing water in the second tank space (4) flowing out under the action of water pressure. Flushing system (1) according to Claim 1, characterized in that the filling valve (5) is directed into the first tank space (3) in such a way that the first tank space (3) is filled through the filling valve (5), and
that the first tank space (3) has an overflow edge (14) over which the flushing water can be guided from the first tank space (3) into the second tank space (4) when the first tank space is filled and the first tank space (3) continues to be filled. Flushing system (1) according to Claim 2, characterized in that the second flushing opening (11) of the sanitary article (8), viewed in the installed position, is below the overflow edge (14), the height of the second flushing opening (11) defining an overflow height, which overflow height is above a nominal water level in the second tank room (4). Flushing system (1) according to any one of the preceding claims, characterized in that when the cistern (2) is completely filled, the nominal water level in the first tank space (3) is above the nominal water level in the second tank space (4); and/or that the first tank space (3) lies entirely in the second tank space (4). Flushing system (1) according to one of the preceding claims, characterized in that the overflow edge (14) extends completely around the first tank space (3). Flushing system (1) according to one of the preceding claims, characterized in that the volume of the first tank space (3) is smaller than the volume of the second tank space (4). Flushing system (1) according to one of the preceding claims, characterized in that the first flushing valve (6) and the first flushing opening (10) are designed in such a way that the flushing water can be introduced into the drain section (13) and that the second flushing valve (7) and the second flushing opening (11) are designed in such a way that the flushing water can be introduced into the receiving space (9). Flushing system (1) according to one of the preceding claims, characterized in that during a flushing process the first flushing valve (6) is opened after the second flushing valve (7) and/or in that the first flushing valve (6) is opened before the second flushing valve (7 ) is closed. Flushing system (1) according to one of the preceding claims, characterized in that the first flushing valve (6) has an actuating float (15), the actuating float (15) floating on the flushing water in the second tank space (4) in such a way that the first flushing valve (6) can be actuated based on the water level in the second tank space (4). Flushing system (1) according to one of the preceding claims, characterized in that the first flushing opening (10) is arranged at the bottom of the first tank space (3) and that the first flushing valve (6) has a valve body (16) which has the flushing opening (10) surrounding the valve seat (17) can be raised from a closed position to a flushing position. Flushing system (1) according to claim 10, characterized in that the first Flushing opening (10) after the siphon section (12) opens into the drain section (13). Flushing system (1) according to one of the preceding claims, characterized in that the second flushing valve (7) has an inlet (18) which can be connected to a building-side line network in such a way that the second flushing valve (7) is supplied with flushing water under line pressure , wherein the flushing valve (7) is connected to a first section (19) of a flushing line with a jet pump (20), the jet pump (20) having a venturi nozzle (21) with a suction opening (22) open towards the flushing tank (2). with water under line pressure being able to be fed into the Venturi nozzle (21) when the flushing valve (7) is open, in such a way that water from the second water tank (4) can be fed to the Venturi nozzle (21) via the suction opening (22) in a sanitary article (8) leading second section (23) of the flushing line can be fed. Flushing system (1) according to Claim 12, characterized in that the flushing line has a pipe interrupter (24) for separating drinking water from flushing water. Flushing system (1) according to one of the preceding claims, characterized in that the cistern (2), seen in the installed position, lies below an upper edge (25) which closes off the sanitary article (8) at the top.

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