EP3330443A1 - Sanitary fitting with at least one fitting having a check valve - Google Patents

Abstract

Sanitary fitting (1), comprising at least one housing (2) with an outlet (3), a first liquid channel (4) for a first liquid, the first liquid channel (4) extending through the outlet (3), a second liquid channel (5 ) for a second liquid, the second liquid channel (5) in the first liquid channel (4) passing through the outlet (3), a connecting piece (6) into which the first liquid channel (4) and the second liquid channel (5) open and at least one check valve (7, 8) which prevents a flow of the first liquid from the fitting (6) into the second liquid passage (5) or a flow of the second liquid from the fitting (6) into the first liquid passage (4).

Description

The present invention relates to a sanitary fitting, the needs of providing a liquid to a sink, sink, shower and / or bath.

Sanitary fittings are known from the prior art, with which either a mixed water with a mixed water temperature of for example 1 ° C to 90 ° C or hot water with a hot water temperature of for example 95 ° C (Celsius) to 100 ° C are available. The mixed water and the hot water are fed with two separate hoses through a spout of the sanitary fitting to a jet regulator, which may for example be designed in the manner of a mousseurs. Due to the two parallel hoses, the spout must be designed with a correspondingly large diameter in order to provide sufficient space for the hoses. The separate hoses for the mixed water and hot water thus limit the design options of the sanitary fitting. Furthermore, the radiation regulator at the end of the two hoses is a flow resistance, so that the mixed water and / or the hot water can undesirably flow from the radiation controller back into the respective adjacent hose. The mixed water and the hot water are thus not (completely) separated from each other.

The object of the invention is therefore to solve the problems described with reference to the prior art, at least partially, and in particular to provide a sanitary fitting, with the two liquids safely separated from each other are feasible.

This object is achieved with a sanitary fitting according to the features of the independent claim. Further advantageous embodiments of the sanitary fitting are given in the dependent claims. It should be noted that the features listed individually in the dependent claims in any technologically meaningful way can be combined with each other and define further embodiments of the invention. In addition, the features specified in the claims are specified and explained in more detail in the description, wherein further preferred embodiments of the invention are shown.

1. a) ein Gehäuse mit einem Auslauf,
2. b) einen ersten Flüssigkeitskanal für eine erste Flüssigkeit, wobei der erste Flüssigkeitskanal durch den Auslauf verläuft,
3. c) einen zweiten Flüssigkeitskanal für eine zweite Flüssigkeit, wobei der zweite Flüssigkeitskanal in dem ersten Flüssigkeitskanal durch den Auslauf verläuft,
4. d) ein Anschlussstück, in das der erste Flüssigkeitskanal und der zweite Flüssigkeitskanal münden und
5. e) zumindest ein Rückschlagventil, das ein Strömen der ersten Flüssigkeit von dem Strahlregler in den zweiten Flüssigkeitskanal oder ein Strömen der zweiten Flüssigkeit von dem Anschlussstück in den ersten Flüssigkeitskanal verhindert.

Contributing to this is a sanitary fitting, which has at least the following components:

1. a) a housing with an outlet,
2. b) a first liquid channel for a first liquid, wherein the first liquid channel passes through the outlet,
3. c) a second liquid channel for a second liquid, wherein the second liquid channel in the first liquid channel passes through the outlet,
4. d) a connecting piece, in which the first liquid channel and the second liquid channel open and
5. e) at least one check valve which prevents flow of the first liquid from the jet regulator into the second liquid channel or a flow of the second liquid from the connection piece into the first liquid channel.

The sanitary fitting is used for providing a first liquid and second liquid to a sink, sink, shower and / or bath as needed. In particular, the first fluid is a mixed water mixed with a cold water temperature at a cold water temperature and a hot water with a hot water temperature at an adjustable mixed water temperature. The cold water temperature of the cold water is in particular a maximum of 25 ° C (Celsius), preferably 1 ° C to 25 ° C, more preferably 5 ° C to 20 ° C and / or the hot water temperature of the hot water in particular at most 90 ° C, preferably 25 ° C to 90 ° C, more preferably 55 ° C to 65 ° C. For mixing the cold water and the hot water to the mixed water, the sanitary fitting, for example, a mixing valve, a solenoid valve or a mixing cartridge having, for example, with an actuator, such as a lever or a rotary element, are actuated. In the The second liquid is in particular a hot water with a hot water temperature of 95 ° C to 100 ° C. Alternatively, the first fluid and / or the second fluid may also be a fluid having a particular flavor, such as fluid with a syrup.

The sanitary fitting has a housing with an outlet, wherein the housing and / or the outlet may at least partially made of plastic and / or (cast) metal. The sanitary fitting is fastened to the housing in particular on a support, such as a worktop, a sink, a sink, a bathtub or a wall. The spout may in particular be rotatably or pivotally mounted on the housing and having an outlet opening for the first liquid and the second liquid. The outlet is also at least partially tubular. Through the outlet run a first liquid channel for the first liquid and a second liquid channel for the second liquid, wherein the second liquid channel in the first liquid channel extends through the outlet. In this way, the first liquid channel in particular at least partially an annular cross section and / or the second liquid channel in particular a circular cross section. The first fluid channel is also formed in particular by the outlet itself, so that the sanitary fitting for the first fluid channel does not require a separate hose. The second fluid channel may in particular be designed in the form of a (flexible) tube which runs through the first fluid channel. Furthermore, the first liquid channel and the second liquid channel may be concentric with each other. It should be clarified that the sanitary fitting may have additional fluid channels for the guidance of other liquids.

The first fluid channel and the second fluid channel open (separated from each other) in a connector. The connecting piece is in particular at least partially made of plastic and / or is produced in particular by means of a plastic injection molding process. The connector is also in particular by the outlet opening in the outlet can be arranged and / or has an outer contour which corresponds to an inner contour of the outlet. In this way, the connection piece forms in particular an end of the first liquid channel and / or of the second liquid channel. Downstream of the connection piece, in particular, a jet regulator, for example in the form of an aerator or a mousseur, can be arranged for the first liquid and / or the second liquid, with which the first liquid and / or the second liquid can be displaced with air from the environment. The jet regulator represents a flow resistance for the first liquid and the second liquid, by which the first liquid can be at least partially diverted into the second liquid channel and / or the second liquid is at least partially diverted into the first liquid channel.

In addition, the sanitary fitting has at least one check valve which prevents flow of the first liquid from the connection piece into the second liquid channel and / or a flow of the second liquid from the connection piece into the first liquid channel. The at least one check valve allows a flow of the first liquid and / or the second liquid (only) in a first flow direction (in particular in the direction of the connection piece or the jet regulator) and in particular prevents (at least partially) a flow of the first liquid and / or the second Liquid in an opposite direction of flow. The check valve may in particular be designed in the manner of a so-called "duckbill valve". Such a "duckbill valve" may be at least partially made of rubber or an elastomer and / or at least partially formed in the shape of a beak. It is also preferably arranged at a longitudinal end of the first fluid channel and / or second fluid channel. As the first fluid flows through the first fluid passage toward the fitting and / or the second fluid flows through the second fluid passage toward the fitting, the beak of the duckbill valve opens due to fluid pressure. When the fluid pressure drops below a threshold, the duckbill valve's beak closes again so that no fluid can flow from the connector into the first fluid channel and / or second fluid channel. This allows a separation of the two liquids to the connection piece or the outlet opening of the outlet or the immediate sampling point of the liquids are ensured. In addition, it can be prevented, for example, that hot water from the second liquid channel enters the first liquid channel and thereby heats the outlet. As a result, a risk of scalding for a user of the sanitary fitting is avoided. In addition, a separate tube for the first liquid or the mixed water can be omitted, whereby the installation of the sanitary fitting is simplified.

The first liquid channel and the second liquid channel can open into a (common) mixing chamber of the connection piece. The mixing chamber is, in particular, a space in the connection piece into which the first liquid and the second liquid can be introduced separately and then mixed with one another there.

The connector may have at least a first input for the first fluid channel. The at least one first input is, in particular, an opening in the connecting piece, through which the first liquid can enter from the first liquid channel into the connecting piece.

The at least one check valve may be arranged in the region of the at least one first input. The at least one check valve may be arranged in particular in an opening of the at least one first input.

The connecting piece may have at least one second inlet for the second liquid channel. The at least one second input is, in particular, at least one opening in the connecting piece, through which the second liquid can enter from the second liquid channel into the connecting piece. The at least one second input may include a nipple to which the second fluid channel is attachable.

The connecting piece is preferably arranged in the outlet. In particular, the connection piece is arranged a maximum of 50 mm (millimeters) from the outlet opening of the outlet in the outlet.

The connector may be arranged downstream of a jet regulator for the first liquid and the second liquid. This means in particular that the jet regulator is arranged in a flow direction of the first liquid and / or the second liquid behind the connection piece. The jet regulator is, in particular, an aerator and / or a sieve-shaped insert, with which the first liquid and / or the second liquid can be displaced (in the case of a pin), in particular with (ambient) air, and / or into beads.

Preferably, the first fluid channel is connected to a mixed water source. The mixed water source may in particular be a mixing valve or a mixing cartridge, with which the cold water and the hot water are miscible to the mixed water with the desired mixed water temperature.

Preferably, the second liquid channel is connected to a hot water source. The hot water source is, for example, a boiler with which the second liquid can be heated to a temperature of, for example, above 95 ° C., preferably 95 ° C. to 100 ° C. In addition, the hot water source can also be a donor for flavor carriers.

Fig. 1:

eine Sanitärarmatur mit einer ersten Ausführungsvariante eines Anschlussstücks;

Fig. 2:

die erste Ausführungsvariante des Anschlussstücks in der Sanitärarmatur in einem Längsschnitt;

Fig. 3:

die erste Ausführungsvariante des Anschlussstücks in einer perspektivischen Schnittdarstellung; und

Fig. 4:

eine zweite Ausführungsvariante eines Anschlussstücks in einer perspektivischen Schnittdarstellung.

The invention and the technical environment will be explained in more detail with reference to FIGS. It should be noted that the figures show particularly preferred embodiments of the invention, but this is not limited thereto. The same components are provided in the figures with the same reference numerals. They show by way of example and schematically:

Fig. 1:

a sanitary fitting with a first embodiment of a fitting;

Fig. 2:

the first embodiment of the fitting in the sanitary fitting in a longitudinal section;

3:

the first embodiment of the connector in a perspective sectional view; and

4:

a second embodiment of a connector in a perspective sectional view.

The Fig. 1 shows a sanitary fitting 1 in a side view. The sanitary fitting 1 has a housing 2 with an outlet 3. The sanitary fitting 1 can be fastened to the housing 2 on a carrier, not shown here. Furthermore, the outlet 3 is pivotable relative to the housing 2. The sanitary fitting 1 further comprises a first liquid channel 4 for a first liquid and a second liquid channel 5 for a second liquid. The first liquid channel 4 extends through the outlet 3, the second liquid channel 5 being arranged in the first liquid channel 4 and passing through the outlet 3 through the first liquid channel 4. The second liquid channel 5 is designed in the manner of a hose, whereas the first liquid channel 4 is formed (at least partially) through the outlet 3. The first liquid channel 4 and the second liquid channel 5 open into a connecting piece 6, which is likewise arranged in the outlet 3. With the first liquid channel 4, a mixed water from a mixed water source 14, which is designed in the manner of an operable by a lever 16 mixing valve, to the connector 6 feasible. Furthermore, by means of the second liquid channel 5, a hot water from a hot water source 15, which is designed here in the manner of a boiler, to the connector 6 feasible.

The Fig. 2 shows a detail of the in the Fig. 1 shown first embodiment of the connector 6 in a longitudinal section. It can be seen here that the first liquid channel 4 formed by the outlet 3 and the second liquid channel 5 open into a mixing chamber 9 of the connecting piece 6. Downstream of the connector 6, a jet regulator 13 is arranged in the manner of a sieve-like insert, through which the first liquid and / or the second liquid can escape from an outlet opening 17 of the outlet 3.

The Fig. 3 shows the first embodiment of the connector 6 in a perspective sectional view. The connector 6 has a first first input 10 and a second first input 11 for the first liquid of the in the Fig. 1 and 2 shown first liquid channel 4. In the first first input 10, a first check valve 7 and in the second first input 11, a second check valve 8 is arranged. Furthermore, the connector 6 has a second input 12 for the second liquid of the in the Fig. 1 and 2 shown second liquid channel 5. The second liquid channel 5 can be inserted into the second input 12 of the connecting piece 6. The first first input 10, the second first input 11 and the second input 12 are arranged on an end face 18 of the connection piece 6. The first check valve 7 and the second check valve 8 prevent the first liquid and the second liquid from the mixing chamber 9 from flowing back into the first liquid passage 4.

The Fig. 4 shows a second variant of a connector 6 in a perspective sectional view, which in a sanitary fitting 1 according to the Fig. 1 can be used. The second embodiment of the connector 6 differs from the first embodiment of the connector 6 substantially by the arrangement of the first first input 10, the second first input 11 and the second input 12. The second input 12 is here between the first first input 10 and the second first input 11 is arranged in a center of the connecting piece 6. The first first input 10, the second first input 11 and the second input 12 each open in the mixing chamber 9. In the first first input 10th is the first check valve 7 and in the second first input 11, the second check valve 8 is arranged.

By the present invention, two liquids can be separated from each other through an outlet of a sanitary fitting with only one hose.

LIST OF REFERENCE NUMBERS

1

plumbing fixture

2

casing

3

outlet

4

first fluid channel

5

second fluid channel

6

connector

7

first check valve

8th

second check valve

9

mixing chamber

10

first first entrance

11

second first entrance

12

second entrance

13

aerator

14

Mixed water source

15

Hot water source

16

lever

17

outlet opening

18

face

Claims (9)

Sanitary fitting (1), at least comprising: a) a housing (2) with an outlet (3), b) a first liquid channel (4) for a first liquid, wherein the first liquid channel (4) extends through the outlet (3), c) a second liquid channel (5) for a second liquid, wherein the second liquid channel (5) in the first liquid channel (4) extends through the outlet (3), d) a connecting piece (6) into which the first liquid channel (4) and the second liquid channel (5) open and e) at least one check valve (7, 8) which prevents a flow of the first liquid from the connecting piece (6) into the second liquid channel (5) or a flow of the second liquid from the connecting piece (6) into the first liquid channel (4) , Sanitary fitting (1) according to claim 1, wherein the first liquid channel (4) and the second liquid channel (5) open into a mixing chamber (9) of the connecting piece (6). Sanitary fitting (1) according to one of the preceding claims, wherein the connecting piece (6) has at least one first input (10, 11) for the first liquid channel (4). Sanitary fitting (1) according to claim 3, wherein the at least one check valve (7, 8) in the region of the at least one first input (10, 11) is arranged. Sanitary fitting (1) according to one of the preceding claims, wherein the connecting piece (6) has at least one second inlet (12) for the second liquid channel (5). Sanitary fitting (1) according to one of the preceding claims, wherein the connecting piece (6) in the outlet (3) is arranged. Sanitary fitting (1) according to one of the preceding claims, wherein the connecting piece (6) is arranged downstream of a jet regulator (13) for the first liquid and the second liquid. Sanitary fitting (1) according to one of the preceding claims, wherein the first liquid channel (4) is connected to a mixed water source (14). Sanitary fitting (1) according to one of the preceding claims, wherein the second liquid channel (5) is connected to a hot water source (15).

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