DE102017108028A1 - Toilet cistern and corresponding use of an injector - Google Patents

Abstract

A toilet cistern (1) having a wall (2) forming a substantially cuboidal water tank (3). Through the wall (2) an inlet (5) is guided, with which the water tank (3) can be filled. In the inlet (5) a shut-off valve (7) is arranged, which cooperates with a shut-off device (8), which triggers the shut-off valve (7) when a Abschaltfüllstandes (14) in the water tank (3). In the water tank (3) an injector (15) is arranged in a space (13) above the Abschaltfüllstandes (14). The downstream outlet (16) of the injector (15) is led out of the water tank (3). (Fig. 1)

Description

The invention describes a toilet cistern, with a wall forming a water tank and a guided through the wall inlet, with which the water tank can be filled, wherein in the inlet a shut-off valve is arranged, which cooperates with a shutdown device upon reaching a Abschaltfüllstandes in the water tank ,

Such toilet cisterns are known in the art generally and in various designs. For example, there are cisterns for mounting on a wall, in a pretext, or those that stand up on a toilet. In addition, there are also pretext elements that include a toilet cistern.

In some cultures, it is common to provide next to the toilet a shower set, such as a Shattaf shower, for hygienic purposes. For this, however, it is necessary to make a separate water connection for the shower set in addition to the water connection for the toilet cistern. In addition, such a water connection can also be used for cleaning purposes. However, this requires additional installation, which is costly and expensive.

The object of the invention is to provide a simpler and cheaper solution here.

This object is achieved by a toilet cistern with the features of claim 1.

The cistern according to the invention is therefore characterized in that in the water tank in an installation space above the Abschaltfüllstandes an injector is arranged and that an outflow-side outlet of the injector is led out of the water tank. This outlet can serve as an additional water connection. In this toilet cistern, it is therefore possible to connect, for example, a shower set for hygienic or other purposes to the downstream outlet.

By the injector inside the toilet cistern on the one hand the water supply to the outlet is guaranteed. On the other hand, a return flow from the outlet into the fresh water inlet is prevented. Backflowing water or water flowing in at the outlet simply flows into the cistern. Thus, it can also be prevented that at a negative pressure in a drinking water leading connection line at the inlet, for example when venting, hot water is sucked back into the connection line.

Another advantage of the injector is that it provides almost the water pressure of the inlet at the exit. Thus, applications are possible at the output, which require a water pressure.

Overall, an additional water connection is available through the toilet cistern according to the invention without a complex and expensive sanitary installation is necessary.

An additional advantage is that such an additional water connection without subsequent sanitary installation can be installed by replacing or retrofitting an existing toilet cistern.

The injector can be characterized by a horizontal installation position, in particular its free jet route. This allows a low height. In addition, the required standard distance between hot water and rinse water is reduced in the pool, creating a more compact height is possible.

In an advantageous embodiment, an overflow pipe is arranged in a drain of the water tank, which projects into an interior of the water tank to define a maximum level, and the injector is disposed above the maximum level. The overflow pipe prevents the WC cistern from being filled above the defined maximum level. This prevents the injector located above the maximum level from becoming full of water or becoming submerged in the water, for example, when the shutdown device described above is defective. Thus, a sucking back of hot water from the water tank at a negative pressure in a drinking water leading connection line at the inlet can be prevented.

In an expedient embodiment of the invention, the injector has a free jet path. This free jet route ensures the separation and thus the return flow of the outlet from the inlet.

The free jet path is preferably oriented horizontally and is open down into the water tank. This ensures that any backflowing water can freely enter the toilet cistern and not in any way in the inlet.

An advantageous embodiment is characterized in that the injector has at a downstream end of a free jet section a collecting opening which is formed on a protruding against a given by the free jet path beam projection protruding. The lead can act like a funnel and ensure that as much water as possible gets to the exit. The protrusion can prevent water from creeping or trickling from the area in a vicinity of the collecting opening into the collecting opening.

In a particularly advantageous embodiment of the invention, the injector is on the inflow side with a valve switched off. As a result, the output can already be deactivated on an inflow side. This can be prevented in a simple way that at the output of water can be removed. This may be necessary or advantageous, for example, in the event of a defect in the output line.

The valve may be formed, for example, as a ball valve or as a screw valve.

For actuating the valve may be present, for example, a mechanical actuator. This actuator may for example comprise a lever or a rotary wheel.

However, it is particularly advantageous if the valve is electrically actuated. The actuator may be about a switch or button. This allows actuation of a valve which is arranged in a hard to reach place, in particular over long distances and / or in tight spaces.

It is particularly advantageous if a non-contact controllable actuator of the valve is present. This may include, for example, a solenoid valve or an electric motor driven valve. For power supply can / can be provided a mains connection and / or batteries. In an expedient embodiment, the actuating device is fed from an electrical energy store. This can for example include a battery.

An embodiment of the invention has a generator which is arranged in the inlet and is set up to charge the energy store. Thus, a self-sufficient toilet cistern is available in particular without power supply connection. This generator may for example have a water wheel which is driven by the water flow in the inlet. In this way, electrical energy for switching the valve can be obtained in a simple way.

The injector can be connected to the inlet, with which the water tank can be filled, so that only one water connection for the toilet cistern is necessary to the outside.

In an alternative embodiment, a supply line of the injector can be guided separately from the inlet into the water tank.

In one embodiment of the invention, the outlet of the injector opens into a return-secured water connection. The water connection may have a thread for connecting accessories.

In an advantageous embodiment of the invention, a cleaning unit, in particular a shut-off spray, preferably a Shattaf shower, connected or connectable to the injector, in particular to the return-secured water connection. Especially with Shattaf showers or the like connected via a hose connection devices, a backflow prevention is desirable or mandatory, because it can not be ruled out that the connection device immersed in a water tank, while in the water pipe creates a negative pressure.

The invention also includes the use of an injector in a toilet cistern to provide a backflow protected water connection to the toilet cistern. The use of an injector has the advantage that - due to the horizontal installation position of the injector - a low height is maintainable.

It is particularly advantageous if a cleaning unit, in particular a shut-off shower, preferably a Shattaf shower, is connected to the return-secured water connection.

The invention is explained in more detail below with reference to some advantageous embodiments with reference to the accompanying drawings. The examples serve only to illustrate the invention and are in no way limiting.

• 1: eine erste Ausführung eines erfindungsgemäßen WC-Spülkastens mit einem externen Ventil für den Inj ektor,
• 2: eine zweite Ausführung eines erfindungsgemäßen WC-Spülkastens mit einem externen Ventil für den Injektor und einer Ausgangsleitung durch den Spülkasten,
• 3: eine dritte Ausführung eines erfindungsgemäßen WC-Spülkastens mit einem internen Ventil für den Injektor und einer Ausgangsleitung durch den Spülkasten,
• 4: eine vierte Ausführung eines erfindungsgemäßen WC-Spülkastens mit einem internen Ventil für den Injektor,
• 5: eine fünfte Ausführung eines erfindungsgemäßen WC-Spülkastens mit einem internen Ventil für den Injektor mit einer Ausgangsleitung durch den Spülkasten und
• 6: ein Vorwandelement mit einem WC-Spülkasten nach 5.

It shows

• 1 : a first embodiment of a toilet cistern according to the invention with an external valve for the injector,
• 2 a second embodiment of a toilet cistern according to the invention with an external valve for the injector and an outlet line through the cistern,
• 3 a third embodiment of a toilet cistern according to the invention with an internal valve for the injector and an outlet line through the cistern,
• 4 a fourth embodiment of a toilet cistern according to the invention with an internal valve for the injector,
• 5 a fifth embodiment of a toilet cistern according to the invention with an internal valve for the injector with an outlet line through the cistern and
• 6 : a pretext element with a toilet cistern after 5 ,

The 1 shows a toilet cistern according to the invention 1 with a wall 2 in the example, a substantially cuboid water tank 3 shaped. In further embodiments, water tanks are realized with other basic geometrical shapes.

Through the wall 2 in 1 is on a narrow side 4 a feed 5 led, with which the water tank 3 with water 6 is fillable. In the inlet 5 is a shut-off valve 7 arranged, which with a shutdown device 8th interacts. This shutdown device 8th for example, a swimmer 9 show up on the water 6 in the water tank 3 floating or in the water 6 swims. Upon reaching a shutdown level 14 in the water tank 3 triggers the float 9 the shut-off valve 7 out, so no water 6 more through the inlet 5 flows.

Outside the toilet cistern 1 is the feed 5 with a water connection 10 connected, for example via a line 11 , The water connection 10 has a shut-off valve 12 on, with the outside from the water supply to the inlet 5 can be interrupted.

In the water tank 3 is in a space 13 above the shutdown level 14 an injector 15 arranged horizontally. The downstream outlet 16 of the injector 15 is through a water outlet 17 from the water tank 3 led out. The water outlet 17 is above the shutdown level 14 and in the example has an external thread 18 on. In the example is at the water outlet 17 a hose line 19 connected, at the free end 20 a Shattaf shower 21 connected. Of course you can connect to the hose line 19 or the water outlet 17 also other devices are connected.

In the example is the water outlet 17 at the inlet 5 opposite side 22 the wall 2 arranged. Of course, the water outlet 17 also in another place on the wall 2 be arranged.

The entrance 23 of the injector 15 is via an internal line 24 with one outside the toilet cistern 1 arranged valve 25 connected. The valve 25 is with the water connection 10 connected and has an actuating device 26 on, with the valve 25 can be opened or closed. In this way, the influx to the injector 15 be prevented. In the example is the valve 25 as a ball valve and the actuator 26 designed as a lever.

The injector 15 has a free jet route 27 on, which is essentially the return flow from the exit 16 to the entrance 23 prevented. In the example, the free jet range 27 oriented horizontally and is down in the water tank 3 open. Through the exit 16 Backflowing water thus flows through this opening 43 in the water tank 3 and can not in the entrance 23 get to the injector. The injector 15 thus ensures a reflux protection for the water outlet 17 ,

The free jet range 27 in the example also has a collecting opening 28 on one at one opposite to the one by the open air jet 27 given beam direction protruding projection 29 is trained.

In a process 30 of the water tank 3 is an overflow pipe 31 arranged, which in an interior of the water tank 3 protrudes to a maximum level 32 define. The injector 15 is preferably also above the maximum level 32 arranged to prevent the injector 15 with water 6 is filled and thus a separation between input 23 and exit 16 no longer exists.

Next to it is the toilet cistern 1 a drain 33 for the rinse water and an actuation 34 ( 6 ) for triggering the rinsing process, which are known per se and therefore will not be explained in detail here.

The 2 shows a toilet cistern 1 Essentially, the toilet cistern 1 of the 1 equivalent. The remarks to 1 can thus be after the embodiment 2 read. For this purpose, the reference numerals were analogous to 1 forgive.

According to the embodiment 2 is however the exit 16 of the injector 15 over a closed line 35 from the water tank 3 led out. 2 shows that the output 16 through the bottom wall of the water tank 3 led out. The administration 35 may be performed in any other position in further embodiments. This allows the water outlet 17 be placed at a location adapted to the installation location.

The 3 shows an alternative embodiment of a toilet cistern according to the invention 1 , Again, the same reference numerals are used to indicate that the explanatory notes to the 1 and 2 on 3 let read.

Unlike the execution of the 2 However, this version has an electrically operated valve 36 in the pipe 24 to the injector 15 on, within the installation space 13 above the maximum level 32 is arranged. For the power supply of the electric valve 36 is in the supply line 37 a generator 38 arranged to generate electrical energy. This generator 38 converts flow energy of water into electrical energy. The generator 38 may have a water wheel, which is driven by the water flow. The water wheel can be connected to a dynamo. The feed 5 for filling the water tank 3 is after this generator 38 arranged. In this way, electrical energy is generated during each rinsing process, ie every filling process. The toilet cistern 1 may have an energy storage, such as a battery, is stored in the excess electrical energy. In further embodiments, the energy storage can be charged in other ways, for example by energy harvesting ("energy harvesting").

For actuating the electric valve 36 can at the toilet cistern 1 a switch or button can be arranged. In the example, the electric valve 36 a non-contact controllable actuator 39 on. This is a remote control 40 present, which has a shutter button 41 having. This remote control 40 can be via radio or infrared light with the actuator 39 be connected. The valve 36 can do this via the shutter button 41 be switched on and off. However, it may also have a timing so that the valve 36 is closed automatically after an adjustable time after opening.

The in the 4 shown embodiment is a combination of the embodiments of 1 and 3 , It has an electric valve 36 according to the 3 and a water outlet 17 according to the 1 on.

The execution in 5 is a variant of the execution of 3 , where here the inlet 5 via an internal water connection 10 he follows.

The toilet cisterns the 1 to 5 are each designed as separate units that are mounted hanging on a wall or standing on a toilet.

The 6 finally shows a common pretext element 42 in which a toilet cistern 1 according to the 5 is arranged. The pretext element 42 serves for installation in a wall installation. Such pre-wall elements are known per se, so that the other features of this pretext element 42 will not be discussed in detail.

The invention thus proposes a toilet cistern 1 with a wall 2 which has a substantially cuboidal water tank 3 shapes, before. Through the wall 2 is a feed 5 led, with which the water tank 3 is fillable. In the inlet 5 is a shut-off valve 7 arranged, which with a shutdown device 8th interacts when reaching a Abschaltfüllstandes 14 in the water tank 3 the shut-off valve 7 triggers. In the water tank 3 is in a space 13 above the shutdown level 14 an injector 15 arranged. The downstream outlet 16 of the injector 15 is from the water tank 3 led out.

LIST OF REFERENCE NUMBERS

1

Toilet cistern

2

wall

3

water tank

4

narrow side

5

Intake

6

water

7

Shut-off valve in the inlet

8th

breaking device

9

swimmer

10

mains water supply

11

management

12

Shut-off valve at the water connection

13

space

14

Abschaltfüllstand

15

injector

16

Output of the injector

17

water output

18

external thread

19

hose

20

free end

21

Shattaf shower

22

opposite side

23

Input of the injector

24

internal line to the injector

25

Valve

26

actuator

27

Free beamline

28

collection opening

29

head Start

30

procedure

31

Overflow pipe

32

maximum level

33

outflow

34

activity

35

closed line

36

electric valve

37

supply

38

generator

39

non-contact actuator

40

remote control

41

shutter button

42

Wall unit

Claims (11)

Toilet cistern (1), comprising a wall (2) forming a water tank (3) and an inlet (5) guided through the wall (2), with which the water tank (3) can be filled, wherein in the inlet (5) a shut-off valve (7) is arranged, which cooperates with a shut-off device (8) when a Abschaltfüllstandes (14) in the water tank (3), characterized in that in the water tank (3) in a space (13) above the Abschaltfüllstandes ( 14) an injector (15) is arranged and that an outflow-side outlet (16) of the injector is led out of the water tank (3). Toilet cistern (1) to Claim 1 , characterized in that in an outlet (30) of the water tank (3) an overflow pipe (31) is arranged, which projects into an interior of the water tank (3) to define a maximum level (32), and that the injector (15 ) is arranged above the maximum level (32). Toilet cistern (1) according to one of the preceding claims, characterized in that the injector (15) has a preferably horizontally oriented free jet path (27), which is open down into the water tank (3). WC cistern (1) according to any one of the preceding claims, characterized in that the injector (15) at a downstream end of the or a free jet line (27) has a collecting opening (28) on one opposite to the free jet (27) given beam direction projecting projection (29) is formed. Toilet cistern (1) according to one of the preceding claims, characterized in that the injector (15) on the inflow side with a preferably electrically actuated valve (25, 36) is switched off. Toilet cistern (1) according to any one of the preceding claims, characterized in that a preferably non-contact controllable actuator (26, 39) of the valve (25, 36) is fed from an electrical energy storage, in particular wherein the energy storage from a arranged in the inlet Generator (38) is rechargeable. Toilet cistern (1) according to one of the preceding claims, characterized in that the injector (15) from the inlet (5) is fed or a supply line (24) of the injector (15) separately from the inlet (5) in the Water tank (3) is guided. Toilet cistern (1) according to one of the preceding claims, characterized in that the outlet (16) of the injector (15) opens into a return-secured water connection (17). Toilet cistern (1) according to one of the preceding claims, characterized in that connected to the injector (15), in particular to the return-secured water connection (17), a cleaning unit, in particular a shut-off shower, preferably a Shattaf shower (21) is. Use of an injector (15) in a toilet cistern (1), in particular according to one of the preceding claims, for providing a return-secured water connection (17) to the toilet cistern (1). Use after Claim 10 Characterized in that at the reflux secured water connection (17), a cleaning unit, in particular a turn-off shower, preferably a Shattaf shower (21) is connected.

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