EP3822420A1 - Connection system for a tap with mixing battery for use as a high-pressure or low-pressure fitting - Google Patents

Abstract

The invention relates to a faucet with a mixer tap for use in a connection system for use as a high-pressure or low-pressure fitting, comprising: a water outlet (22), a battery body (1), and a mixer cartridge (2) with an adjusting lever, the water outlet on the battery body is arranged, wherein the battery body has a receiving space for receiving the mixer cartridge, wherein the bottom of the receiving space comprises a first (13), a second (15) and a third hole (17), which extend as channels through the battery body and to it are suitable to be connected to water pipes on the outside of the battery body facing away from the receiving space at an associated first (14), second (16) and third connection (18), the first channel connected to the first hole via a first outlet (31 ) is also connected to the water outlet, characterized in that the third channel connected to the third hole via egg nen second outlet (22) is additionally connected to the water outlet, wherein the first outlet and the second outlet are arranged in the respective channels so that they can be bridged by an insert (41) so that liquid flows between the connection and the hole can without exiting through the outlet.

Description

The present invention relates to a faucet with a mixer tap for use in a connection system for use as a high-pressure or low-pressure fitting and a corresponding connection system for a faucet with a mixer tap for use as a high-pressure or low-pressure fitting. An insert for use in a connection system according to the invention, the use of an insert in a connection system according to the invention and a method for producing a faucet according to the invention are also disclosed.

Faucets are known from everyday life, with a faucet mostly being part of a connection system which, for example, can also include hoses and other components. Conventional faucets have a so-called mixer tap, which is also known as a mixer tap, for metering the water flow and setting the water temperature. The temperature required by the user is set in the appropriate taps by means of the mixer tap by metering and mixing cold and warm water.

A person skilled in the art distinguishes between high-pressure and low-pressure fittings, ie between water taps with mixer taps that are suitable for use in different connection situations. High-pressure fittings are usually used with direct connection of the fitting to hot water networks, instantaneous water heaters or pressure boilers, where the hot water is below full water line pressure. These fittings are characterized by the fact that they only have two connections, a cold water connection and a hot water connection. The cold and hot water flows are mixed inside the mixer tap by a so-called mixer cartridge and discharged via a common outlet.

In contrast to this, low-pressure fittings, which are suitable for use with a pressureless boiler, have three connection lines. In addition to the cold water inlet, the faucet has a cold water outlet, through which the cold water is fed from the faucet to the boiler, as well as a hot water inlet, through which the water heated by the boiler is fed through the faucet to the outlet.

The basic principle of a faucet with a mixer tap is known in the prior art. Corresponding mixer taps are for example in the DE 10057591 C1 , the DE 102005061032 A1 or the DE 19507195 A1 disclosed.

The previously mentioned mixing cartridges, which actually mix the water flows inside the mixer tap, are established components that were developed as early as the 1940s. In such mixing cartridges there are two flat-ground ceramic discs that can be moved and rotated against each other. The fixed, underlying ceramic plate in the mixer cartridge has three openings. Above it lies a second ceramic plate that can be rotated and pivoted upwards and into which a single recess is incorporated. By actuating the adjusting lever of the mixing cartridge, the position of the hole in the movable ceramic plate is changed relative to the stationary ceramic plate, and a connection is thereby created between the underlying openings through which the water flows can flow. Corresponding mixing cartridges, which are also referred to as mixing units or control cylinders, are for example in the DE 102004035644 B4 and the DE 112017000317 T5 as well as the US 5853023 and the US 5375624 disclosed.

It goes without saying for a person skilled in the art that the high-pressure and low-pressure fittings known from the prior art are in no way intended for the can be used for other purposes. This means that a high pressure fitting cannot be used with an unpressurized boiler, whereas a low pressure fitting is not compatible with those facilities in which the hot water is under full water line pressure. This undisputed incompatibility results directly from the above-described function and construction of high-pressure and low-pressure fittings.

The use of a non-pressurized boiler inevitably requires that the tap has three connections, so that the high-pressure fitting with only two connections cannot even be connected. The other way around, there is no way to sensibly connect a low-pressure fitting to a high-pressure line. If the cold water line is connected to the connection provided for this purpose in low-pressure operation, cold water will flow out of the hole in every position of the mixer tap, which includes at least a small portion of hot water, which is actually intended for the inlet to the pressureless boiler. A mere mechanical sealing of this connection is not an option, as this would create a reservoir for stale water that is not traversed by the fresh water flow.

At the same time, a direct connection of a pressurized hot water line to the hot water inlet of a low-pressure fitting would lead to a non-meterable outlet of warm water, since the amount of hot water between this connection and the outlet is no longer throttled, but is regulated via the cold water supply when a pressureless boiler is in operation .

A simple consideration shows that, of course, the connection of the pressurized hot water to the inlet to the unpressurized boiler and the closure of the original hot water inlet cannot result in a functioning mixer tap, since every setting of hot water in a correspondingly switched low-pressure tap simultaneously generates hot and cold water Cold water would open.

Because of this problem, low-pressure fittings are regularly provided with a special warning on the packaging. The connection of a Incorrect fitting, especially if this is not done by specialists, is regularly associated with considerable property damage, in particular with water damage or damage to the boiler.

Even if high pressure fittings are more and more on the advance nowadays, especially in western industrial nations, low pressure fittings still make up a significant part of the systems used.

The option of using a pressureless boiler enables hot and cold water mixer taps to be used even in areas where a pressurized hot water line is not available. This is regularly relevant not only in the area of old buildings and conversions as well as mobile applications, but also in some cases the predominant solution for hot water supply or at least a transitional technology, especially in developing and emerging countries.

Modern faucets and mixer taps are regularly high-quality products whose sophisticated technology and attractive design regularly result in high acquisition costs. These faucets are particularly optically coordinated with the remaining components of the facility, for example the kitchen or the bathroom. It is clear to the person skilled in the art that the incompatibility between high-pressure and low-pressure fittings results in considerable economic damage every year, since fittings that have already been purchased cannot be used any longer due to a change in the connection conditions.

For example, when moving house, the fitting previously used in the kitchen may no longer be compatible with the connection in the new property. The resale value of used faucets, the appearance of which is usually tailored to a specific kitchen or bathroom facility, is regularly low, whereas the acquisition costs of a new faucet, which in turn fits the desired design, can be considerable. In particular, due to the low possibility of resale, the problems described above result not only in high costs, but also in considerable effort. It is also not due to the the more faucets needed generates waste that the specialist would like to avoid, especially in times of dwindling resources and greater environmental awareness among consumers.

In addition to the fact that a faucet that has already been purchased becomes unusable, practice has shown that many specialist shops and mail order companies have high return rates in the area of faucets because laypeople acquire the wrong faucet without being aware of the problem. Depending on the extent of the faulty, unprofessional installation, the resale value of corresponding returns is regularly significantly reduced, so that not only the customer incurs unnecessary effort, but also noticeable damage to the specialist trade.

Another problem is that even specialists have to regularly have different types of faucet available, for example when used in the sanitary emergency service, in order to be able to meet the requirements of the various systems, which is regularly perceived as disadvantageous. In addition, it is regularly felt to be disadvantageous that manufacturers of conventional faucets have to manufacture their products in two different versions, which is associated with additional effort and costs.

In the light of the above problem, there has long been a need in the technical world to specify a faucet with a mixer tap which can be used in a connection system both as a high-pressure and as a low-pressure fitting. The present invention is therefore based on the primary object of eliminating or at least reducing the disadvantages of the prior art described above. Accordingly, the present invention is based, in particular, on the object of specifying a water tap which can be used in a connection system as a high-pressure and low-pressure fitting, and thereby solves the problems described above. In particular, the task was to specify a water tap and an associated connection system, the structure of which is so simple that even a layperson can switch from low-pressure operation to high-pressure operation by making small structural changes. In particular, the tap to be specified should not be Form closed reservoirs in which stale water can collect. In addition, one of the tasks was to specify a corresponding tap that would allow the conversion between the different variants to be carried out particularly quickly and efficiently. The objective was that the specified water tap is easy and cost-effective to manufacture, namely using only such equipment and process steps that are already used in the manufacture of conventional water taps. In particular, it was an aim of the present invention to provide a teaching with which existing low-pressure fittings can also be converted into a fitting that is suitable for both high-pressure and low-pressure operation with comparatively little effort.

The above-mentioned objects are achieved by a faucet with a mixer tap for use in a connection system and corresponding connection systems as defined in the claims. Preferred embodiments according to the invention emerge from the subclaims.

Such features of faucets and connection systems according to the invention, which are designated as preferred below, are combined in particularly preferred embodiments with other features designated as preferred. Combinations of two or more of the items designated below as particularly preferred are thus very particularly preferred.

• Fig. 1: Ein erfindungsgemäßes Anschlusssystem mit einem erfindungsgemäßen Wasserhahn mit Mischbatterie in einer Explosionsdarstellung.
• Fig. 2: Einen vergrößerten Ausschnitt aus dem erfindungsgemäßen Anschlusssystem mit Wasserhahn mit Mischbatterie der Fig. 1.
• Fig. 3: Eine handelsübliche Mischkartusche in der Seitenansicht sowie in der Draufsicht auf die vom Stellhebel abgekehrte Stirnseite der Mischkartusche.
• Fig. 4: Eine schematische Darstellung der drei im Batteriekörper verlaufenden Kanäle in der Seitenansicht.
• Fig. 5: Eine bevorzugte Ausführungsform eines Einsatzes für ein erfindungsgemäßes Anschlusssystem.
• Fig. 6: Eine Darstellung eines herkömmlichen Verbindungsstücks zur Befestigung eines Schlauchs an einem Anschluss.
• Fig. 7: Eine schematische Darstellung der drei im Batteriekörper verlaufenden Kanäle in der Seitenansicht mit im dritten Kanal positioniertem Einsatz im Niederdruckbetrieb.
• Fig. 8: Eine schematische Darstellung der drei im Batteriekörper verlaufenden Kanäle in der Seitenansicht mit im erstem Kanal positioniertem Einsatz im Hochdruckbetrieb.
• Fig. 9: Einen schematische Darstellung des Kaltwasserstroms im Niederdruckbetrieb.
• Fig. 10: Einen schematische Darstellung des Heißwasserstroms im Niederdruckbetrieb.
• Fig. 11: Einen schematische Darstellung des Mischwasserstroms im Niederdruckbetrieb.
• Fig. 12: Einen schematische Darstellung des Kaltwasserstroms im Hochdruckbetrieb.
• Fig. 13: Einen schematische Darstellung des Heißwasserstroms im Hochdruckbetrieb.
• Fig. 14: Einen schematische Darstellung des Mischwasserstroms im Hochdruckbetrieb.

In the figures show:

• Fig. 1 : A connection system according to the invention with a faucet with mixer tap according to the invention in an exploded view.
• Fig. 2 : An enlarged section of the connection system according to the invention with faucet with mixer tap of the Fig. 1 .
• Fig. 3 : A commercially available mixing cartridge in the side view and in the top view of the front side of the mixing cartridge facing away from the setting lever.
• Fig. 4 : A schematic representation of the three channels running in the battery body in a side view.
• Fig. 5 : A preferred embodiment of an insert for a connection system according to the invention.
• Fig. 6 : An illustration of a conventional connector for attaching a hose to a fitting.
• Fig. 7 : A schematic representation of the three channels running in the battery body in a side view with the insert positioned in the third channel in low-pressure operation.
• Fig. 8 : A schematic representation of the three channels running in the battery body in the side view with the insert positioned in the first channel in high pressure operation.
• Fig. 9 : A schematic representation of the cold water flow in low pressure operation.
• Fig. 10 : A schematic representation of the hot water flow in low pressure operation.
• Fig. 11 : A schematic representation of the mixed water flow in low pressure operation.
• Fig. 12 : A schematic representation of the cold water flow in high pressure operation.
• Fig. 13 : A schematic representation of the hot water flow in high pressure operation.
• Fig. 14 : A schematic representation of the mixed water flow in high pressure operation.

• einen Wasserauslauf,
• einen Batteriekörper, und
• eine Mischkartusche mit einem Stellhebel,

wobei der Wasserauslauf am Batteriekörper angeordnet ist,
wobei der Batteriekörper einen Aufnahmeraum für die Aufnahme der Mischkartusche aufweist, wobei der Boden des Aufnahmeraums ein erstes, ein zweites und ein drittes Loch umfasst, die sich als Kanäle durch den Batteriekörper erstrecken und dazu geeignet sind, an der vom Aufnahmeraum abgewandten Außenseite des Batteriekörpers an einem zugehörigen ersten, zweiten und dritten Anschluss mit Wasserleitungen verbunden zu werden, wobei der mit dem ersten Loch verbundene erste Kanal über einen ersten Auslass zusätzlich mit dem Wasserauslauf verbunden ist,
dadurch gekennzeichnet, dass der mit dem dritten Loch verbundene dritte Kanal über einen zweiten Auslass zusätzlich mit dem Wasserauslauf verbunden ist, wobei der erste Auslass und der zweite Auslass in den jeweiligen Kanälen so angeordnet sind, dass sie durch einen Einsatz überbrückt werden können, sodass jeweils Flüssigkeit zwischen dem Anschluss und Loch fließen kann, ohne durch den Auslass auszutreten.The present invention relates in particular to a faucet with a mixer tap for use in a connection system for use as a high-pressure or low-pressure fitting, comprising:

• a water outlet,
• a battery body, and
• a mixing cartridge with an adjusting lever,

wherein the water outlet is arranged on the battery body,
wherein the battery body has a receiving space for receiving the mixing cartridge, the bottom of the receiving space having a first, a second and third holes, which extend as channels through the battery body and are suitable to be connected to the outside of the battery body facing away from the receiving space at an associated first, second and third connection with water pipes, the one connected to the first hole the first channel is also connected to the water outlet via a first outlet,
characterized in that the third channel connected to the third hole is additionally connected to the water outlet via a second outlet, the first outlet and the second outlet being arranged in the respective channels in such a way that they can be bridged by an insert so that in each case Fluid can flow between the connector and the hole without escaping through the outlet.

The main body of a faucet is regularly referred to as the battery body. This battery body and its configurations are basically familiar to the person skilled in the art. The battery body includes, for example, elements to mount the faucet on a sink, for example with a thread. The water outlet of the tap, which can extend from the battery body, for example as a straight or curved tap, is arranged on the battery body. The battery body and the outlet can in principle be produced using conventional methods known to those skilled in the art from any material that is suitable in principle for the production of water taps, metals and metal alloys, in particular iron, steel and aluminum, being particularly suitable.

The battery body has a receiving space, the walls and bottom of which are formed by the battery body, and which is provided for receiving a mixing cartridge.

Mixing cartridges with an adjusting lever are described in the prior art and conventional mixing cartridges are used in the context of the present invention. Conventional mixing cartridges have a first, a second and a third opening on the end face facing away from the setting lever, with a connection between the different openings can be made. The adjusting lever of corresponding mixing cartridges is intended to be connected, for example, with a one-hand grip and thus enable the consumer to set the water temperature and the volume flow by moving the two ceramic disks arranged in the mixing cartridge against each other. The mixing cartridge is designed as it is also regularly used in the prior art, namely so that a connection between the first and the second opening, between the first and the third opening and between the first, the second and the third opening, ie all three openings at the same time, can be produced. Corresponding mixing cartridges are regularly designed in such a way that it is not possible to establish a connection exclusively between the second and the third opening. As explained above, the connection of the openings is achieved by moving the two ceramic plates in the mixing cartridge against one another and is caused by the superimposition of the holes in the ceramic plates.

The floor of the receiving space comprises a first, a second and a third hole. These holes extend as channels through the part of the battery body located under the floor of the receiving space and emerge on the outside of the battery body facing away from the receiving space.

The first hole and the first channel form an associated first connection, the second hole and the second channel form an associated second connection, and the third hole and the third channel form an associated third connection. The connections are intended to be connected with water pipes. Even if the first, second and third connection are formed in the simplest case by a hole, it is therefore preferred that the first, second and third connection have means for fastening water pipes, for example screw threads.

The channel connected to the first hole, ie the first channel which is also connected to the first connection, also comprises a first outlet via which the first channel is additionally connected to the water outlet. This The outlet is usually located inside the battery body between the first hole and the first connection and extends through the battery body in the direction of the water outlet.

The faucet defined above in the generic term is a faucet with a mixer tap, which can be used as a low-pressure fitting and which accordingly has three connections.

In addition to the components specified above, the faucet can also comprise further components, in particular clamping screws for fixing the mixing cartridge in the receiving space or cover caps.

In a departure from a conventional low-pressure fitting, the third channel connected to the third hole is also additionally connected to the water outlet via a second outlet, with both the first outlet and the second outlet in the respective channels, ie in the first and third channel, respectively. are arranged so that they can be bridged by a suitable insert, also known as an adapter, so that liquid can flow between the connection, ie the first or third connection, and the hole, ie the first or third hole, without exiting through the respective outlet.

The faucet according to the invention is therefore only suitable to a limited extent for direct operation without use, but is suitable for use in a connection system according to the invention which at least also includes the use.

By using either the first or the second outlet in the corresponding channel of the faucet according to the invention can be bridged. This allows the connectivity in the tap and thus its functionality to be controlled and specifically changed through the arrangement of the insert. If the second outlet in the third channel is bridged by the insert, a faucet is included that corresponds to the original connectivity and functionality of a low-pressure fitting as defined in the preamble, since the second outlet has no influence on the flow of liquid in the Connection system takes. If the insert bridges the first outlet in the first channel, a faucet is included in which the position of the single open outlet has been changed relative to the position of the mixing cartridge in the low pressure faucet, i.e. without actually changing the position of the mixing cartridge or other components, namely from the first channel into the third channel. A corresponding connection system with use in the first channel of the faucet according to the invention is suitable for use as a high-pressure fitting, the third outlet expediently being closed with a stopper.

Further details on the insert, the connection system which comprises the faucet according to the invention, the flow of the water streams in the various operating variants and the manufacture of the faucet according to the invention are disclosed below.

The faucet according to the invention solves the tasks described above and, depending on the position of the insert, makes it possible to use the faucet in both high-pressure and low-pressure operation, i.e. as a high-pressure and low-pressure fitting, depending on the position of the insert in the context of the connection system.

If the insert is arranged in the third channel, the connection system according to the invention with the faucet according to the invention is suitable for use as a low-pressure fitting. The third connection is connected to a cold water supply, the second connection to the cold water inlet of a low-pressure heater, eg a pressureless boiler, and the first connection to the hot water outlet of the low-pressure heater. Through the third hole in the battery body, if required, cold water reaches the first hole via the mixer cartridge, from where it reaches the water outlet via the first channel and the first outlet located in it. Low-pressure heating systems, which are also referred to as open or pressureless hot water storage tanks, are known to those skilled in the art. In principle, all customary low-pressure heaters can be used in the context of the present invention. Is activated by operating the control lever When hot water is requested, cold water flows from the third hole via the mixing cartridge into the second hole, from where it is fed to the low-pressure heater. The hot water provided by the low-pressure heater returns from the low-pressure heater via the first connection into the first channel and via the first outlet arranged in the first channel to the water outlet.

In contrast to this, the water tap or the connection system is suitable for operation as a high-pressure fitting if the insert is arranged in the first channel and the third connection is closed, for example with a stopper. In the context of the present invention, the term stopper includes all structures and elements that are suitable for sealing the third connection in a liquid-tight manner, at least in the direction of the line, with a closure that can be removed without leaving any residue being preferred. Sealing elements with screw threads are very particularly preferred. In high pressure operation, the cold water supply is connected to the first connection and the hot water supply is connected to the second connection. In this arrangement, when cold water is requested, it passes through the first hole into the mixing cartridge and from there into the third hole. The liquid only reaches the water outlet from the third channel via the second outlet arranged in the third channel, since the third connection is closed by the stopper. If the control lever is moved to the hot water position, hot water enters the mixer cartridge through the second hole and from there into the third hole, through which the hot water again reaches the water outlet via the second outlet.

The constant flushing of the third channel, which is closed with the stopper, with the hot and cold water coming from the first and second channel prevents the accumulation of stale water, which could be disadvantageous from a health point of view. Even after longer periods of non-operation, a relatively short flow of the faucet can ensure a consistently high water quality.

Faucets according to the invention are preferred, the first and / or second and / or third connection, preferably all connections, being provided with screw threads.

The attachment of screw threads to the first and / or second and / or third connection is preferred because it enables the water hoses or water pipes to be attached safely and quickly and can regularly be connected particularly easily to existing infrastructure. It is very particularly preferred that both the first, the second and the third connection are provided with screw threads.

Faucets according to the invention are preferred, the first and / or the second outlet extending over more than half the circumference, preferably over the entire circumference, of the corresponding channel and in particular being designed as an interruption of the respective channel.

Corresponding water taps are particularly advantageous since they allow a large flow of liquid through the corresponding outlets. In particular, if the channels are designed as tubes that are at least partially exposed in the battery body, corresponding outlets can also be produced particularly efficiently and easily, for example using a hacksaw.

1. A. einen erfindungsgemäßen Wasserhahn mit Mischbatterie; und
2. B. einen Einsatz zum Überbrücken des im ersten oder dritten Kanal angeordneten ersten oder zweiten Auslasses, sodass jeweils Flüssigkeit zwischen dem Anschluss und dem Loch fließen kann, ohne durch den Auslass auszutreten.

As explained above, the invention also relates, in particular, to a connection system for a water tap with a mixer tap for use as a high-pressure or low-pressure fitting

1. A. a faucet according to the invention with a mixer tap; and
2. B. an insert for bridging the first or second outlet arranged in the first or third channel, so that in each case liquid can flow between the connection and the hole without exiting through the outlet.

While the faucet according to the invention can advantageously be used in such connection systems, the inventive Use the connection system as a high-pressure or low-pressure fitting, depending on the positioning of the insert. Correspondingly, the connection system according to the invention also achieves the above-mentioned objects.

The connection system according to the invention can be redesigned quickly and cost-effectively with only small modifications, which in case of doubt can also be carried out by laypeople, so that it can be used both as a high-pressure fitting and as a low-pressure fitting. In our own tests it has also been shown that the connection system according to the invention is particularly safe and can be safely installed even by unskilled consumers, since even an improper connection of the water tap, ie a connection of the valve set to high or low pressure to the other system, does not lead to all of the usual problems with conventional faucets, but only manifests itself in an unfavorable mixing of the warm and hot water flows, which leads to a reduction in the achievable warm water temperature. In this case, the consumer can easily change the position of the insert and enable proper operation.

• C. einen Stopfen zum Verschließen des dritten Kanals am dritten Anschluss; und/oder
• D. zwei oder drei Schläuche zum Anschluss des Wasserhahns.

A connection system according to the invention, additionally comprising, is preferred

• C. a plug for closing the third channel at the third port; and or
• D. two or three hoses to connect the faucet.

The plug is only required if the connection system is to be set to high pressure operation, whereby the third connection must be closed by the plug. In practice, moreover, hoses have proven to be a particularly expedient way of connecting a connection system according to the invention, since they are significantly easier to handle than, for example, rigid copper pipes.

A connection system according to the invention is preferred, the insert being a rigid or flexible, preferably a rigid, hollow body, preferably a tube or hose,
and or
wherein the insert has fastening means for fastening the insert in the battery body.

As explained above, the insert is suitable and provided for bridging the first or second outlet arranged in the first or third channel, so that in each case liquid can flow between the connection and the hole without exiting through the outlet. Correspondingly, the insert is expediently a hollow body, which in its interior can lead the liquid from the connection to the hole. In many cases, the shape of the insert essentially corresponds to the inner contours of the first or third channel and has essentially the same length. If the channels are, for example, tubes with an inner diameter A and a length B, the insert is preferably a tube or hose with a maximum outer diameter A and a maximum length B. In practice, rigid hollow bodies have proven useful because they are better are to be handled, can be introduced into the channels in a more reliable and reproducible manner and are more durable at the same time. The insert preferably has fastening means for fastening the insert in the battery body, whereby a particularly secure installation and a good fitting position of the insert are ensured. this can be a screw thread, for example, but other mechanisms, for example with hooks and eyes, are also conceivable. It is particularly preferred that the insert is fixed after it has been introduced into the corresponding channel by fastening the connection hose to the corresponding connection.

A connection system according to the invention is preferred, the insert comprising at least one sealing element which, when the insert is inserted into the battery body, creates a liquid-tight connection between the insert and the wall of the respective channel, so that no water bypasses the insert through the first or third hole can flow the respective channel.

As explained above, the first or second outlet is intended to be bridged by the use. For this it is important that all liquid flow is through the insert in the corresponding channel and no liquid is on the Insert can flow past and exit through the undesired outlet, whereby this should also be guaranteed at high pressures. It has been found that this can be implemented particularly efficiently if the insert comprises at least one sealing element which, when the insert is inserted into the battery body, creates a liquid-tight connection between the insert and the wall of the respective channel. This sealing element is preferably arranged at the tip, ie the outermost quarter, of the insert which is closest to the first or third hole when it is positioned. The sealing element is preferably one or more, preferably two, sealing rings. It is advantageous here that these sealing elements also contribute to a better hold of the insert in the channel through increased friction on the channel wall. A further seal (secondary sealing element) to the inner wall of the duct on the side of the insert facing away from the tip is possible, in particular for further stabilization, but is often superfluous, since the secure connection with the hose is of greater importance on this side.

A connection system according to the invention is preferred, wherein the insert is connected to a hose or can be connected to a hose via a connector, which enables a liquid-tight connection between the insert and the hose.

As explained above, it is in principle possible, for example, to countersink the insert in the desired channel and to fix it by attaching the hose to the corresponding connection. For reasons of easier handling and increased user-friendliness, in particular when converting the connection system, it is preferred, however, if the insert is connected directly to a hose or can be connected to a hose via connection means. The direct connection to the hose is particularly preferred. The insert is particularly preferably designed as an extension of the connection piece with screw thread provided for fastening the hose to the connection, so that the insert is automatically inserted into the channel and fixed in it when the hose is fastened through the thread. Alternatively, however, the insert can also have, for example, a double screw thread, so that the first screw thread of the The insert is attached to the corresponding connection and the second screw thread enables the hose to be attached.

From the above it follows that connection systems according to the invention are preferred for use as a high-pressure fitting, the insert being arranged in the first channel so that liquid can flow from the first connection through the insert and the first hole past the first outlet into the mixing cartridge, and where the third connection is closed in a liquid-tight manner by a plug.

From the above it also follows that connection systems according to the invention are preferred for use as a low-pressure fitting, the insert being arranged in the third channel so that liquid can flow from the third connection through the insert and the third hole past the second outlet into the mixing cartridge.

An insert for use in a connection system according to the invention is also disclosed, the features of preferred inserts resulting from the above statements on the connection system, as well as the use of corresponding inserts in a connection system according to the invention.

• X. Herstellen oder Bereitstellen eines Wasserhahns umfassend einen Wasserauslauf, einen Batteriekörper, und eine Mischkartusche mit einem Stellhebel, wobei der Wasserauslauf am Batteriekörper angeordnet ist, wobei der Batteriekörper einen Aufnahmeraum für die Aufnahme der Mischkartusche aufweist, wobei der Boden des Aufnahmeraums ein erstes, ein zweites und ein drittes Loch umfasst, die sich als Kanäle durch den Batteriekörper erstrecken und dazu geeignet sind, an der vom Aufnahmeraum abgewandten Außenseite des Batteriekörpers an einem zugehörigen ersten, zweiten und dritten Anschluss mit Wasserleitungen verbunden zu werden, wobei der mit dem ersten Loch verbundene erste Kanal über einen ersten Auslass zusätzlich mit dem Wasserauslauf verbunden ist, und
• Y. Hinzufügen eines zweiten Auslasses in die Außenwand des dritten Kanals zwischen dem dritten Loch und dem dritten Auslass durch ein materialabtragendes Bearbeitungsverfahren zur Verbindung des dritten Kanals mit dem Wasserauslauf.

In addition, a method for producing a faucet according to the invention with a mixer tap is disclosed, comprising the steps

• X. Manufacturing or providing a faucet comprising a water outlet, a battery body, and a mixing cartridge with an adjusting lever, the water outlet being arranged on the battery body, the battery body having a receiving space for receiving the mixing cartridge, the bottom of the receiving space having a first, a second and third holes, which extend as channels through the battery body and are suitable to be connected to the outside of the battery body facing away from the receiving space at an associated first, second and third connection with water pipes, the one connected to the first hole the first channel is additionally connected to the water outlet via a first outlet, and
• Y. Adding a second outlet in the outer wall of the third channel between the third hole and the third outlet by a material-removing machining process to connect the third channel to the water outlet.

This method, the first step of which corresponds to the production or provision of a conventional low-pressure fitting, is particularly advantageous because taps according to the invention can thus be easily and efficiently obtained from already existing low-pressure fittings, so that manufacturers of conventional taps in particular can easily adapt their production to the manufacture of those according to the invention Can adjust faucets and eliminate the need for complicated or expensive tools.

• Figur 1 zeigt den grundsätzlichen Aufbau eines erfindungsgemäßen Anschlusssystems mit Wasserhahns mit Mischbatterie in einer Explosionszeichnung einer bevorzugten Ausführungsform. An dem Batteriekörper 1 ist ein Wasserauslauf 22 angeordnet. Der Batteriekörper weist einen Aufnahmeraum 28 für die Aufnahme der Mischkartusche 2 auf. Die Mischkartusche hat an ihrer Unterseite drei Öffnungen 19, 20, 21. Nach Einsatz der Mischkartusche 2 in den Aufnahmeraum 28 wird diese durch eine Spannschraube 3 relativ zur x-Richtung (nicht eingezeichnet, orthogonal zum Boden des Aufnahmeraums) fixiert, die in das Schraubgewinde 25 greift. Auf die Spannschraube 3 wird eine Abdeckkappe 4 gesetzt, bevor der Hebelarm 5 aufgesetzt wird. Der Hebelarm 5 umfasst auch einen Warm/Kalt-Indikator zur Anzeige der Einstellung der Mischbatterie in Abhängigkeit von der Stellung des Hebelarms 5. Zwischen dem ersten Loch 13 und dem ersten Anschluss 14 verläuft der erste Kanal, zwischen dem zweiten Loch 15 und dem zweiten Anschluss 16 verläuft der zweite Kanal und zwischen dem dritten Loch 17 und dem dritten Anschluss 18 verläuft der dritte Kanal. Der erste Kanal ist über einen ersten Auslass 31 zusätzlich mit dem Wasserauslauf 22 verbunden. Der dritte Kanal ist über einen zweiten Auslass 24 ebenfalls zusätzlich mit dem Wasserauslauf 22 verbunden. Sowohl der erste Auslass 31 als auch der zweite Auslass 24 sind in den jeweiligen Kanälen so angeordnet, dass sie durch einen Einsatz 41 überbrückt werden können, sodass jeweils Flüssigkeit zwischen dem Anschluss und dem Loch fließen kann, ohne durch den Auslass auszutreten. Über die Unterseite des Batteriekörpers 1 wird der Wasserhahn über Anschlussschläuche 7, 8, 9 an die Wasserversorgung bzw. die Niederdruckheizung angeschlossen. In Figur 1 ist der Einsatz 41 mit dem Schlauch 9 verbunden. Der in Figur 1 dargestellte Sockel des Wasserhahns ist hohl und schafft einen Leitungsraum 30, durch den die Schläuche 7, 8, 9 zu den Anschlüssen geführt werden können.
• Figur 2 zeigt eine vergrößerte Darstellung des Batteriekörpers 1 aus Figur 1. Neben den bereits für Figur 1 beschriebenen Elementen, sind insbesondere auch die Verbindungselemente 34 schematisch dargestellt, mit denen die Schläuche 7, 8, 9 an ein Wasserreservoir oder eine Niederdruckheizung angeschlossen werden können.
• Figur 3 zeigt eine Mischkartusche 2 in zwei Ansichten, nämlich von der Seite und mit Blick auf die vom Stellhebel abgekehrte Seite. In beiden Fällen sind die erste 19, zweite 20 und dritte Öffnung 21 sowie die Fixierelemente der Mischkartusche 2 zu erkennen, bei denen es sich meist um Vorsprünge handelt.
• Figur 4 zeigt eine schematische Darstellung der drei im Batteriekörper 1 verlaufenden Kanäle in der Seitenansicht, d.h. im Querschnitt. Dabei sind das erste 13, zweite 15 und dritte Loch 17 ebenso zu erkennen, wie der erste 14, zweite 16 und dritte Anschluss 18 sowie der erste 31 und zweite Auslass 24. Zudem sind die Kanalwände 32 kenntlich gemacht.
• Figur 5 zeigt eine bevorzugte Ausführungsform eines Einsatzes 41 für ein erfindungsgemäßes Anschlusssystem, welche über ein Anschlussstück 35 mit einem Schlauch verbunden ist. Der Einsatz 41 weist an seiner Einsatzspitze 37 zwei Dichtungselemente 38 auf, bei denen es sich um Dichtungsringe handelt. Als Befestigungsmittel 39, welches in der dargestellten bevorzugten Ausführungsform sowohl der Befestigung des Schlauches als auch des Einsatzes 41 dient, wird ein Schraubgewinde verwendet. Der dargestellte bevorzugte Einsatz 41 umfasst an der von der Einsatzspitze 37 abgewandten Seite ein sekundäres Dichtungselement 40, bei dem es sich um einen Dichtungsring handelt.
• Figur 6 zeigt ein herkömmliches Verbindungsstück 42 zum Verbinden eines Schlauchs mit einem der Anschlüsse 14, 16, 18 des Wasserhahns, welches über ein Anschlussstück 35 mit einem Schlauch verbunden ist. Als Befestigungsmittel 39, welches der Befestigung des Schlauches am Batteriekörper 1 dient, wird ein Schraubgewinde verwendet. Das dargestellte Verbindungsstück 42 umfasst ein sekundäres Dichtungselement 40, bei dem es sich um einen Dichtungsring handelt.
• Die Figuren 7 und 8 zeigen jeweils eine schematische Darstellung der drei im Batteriekörper 1 verlaufenden Kanäle in der Seitenansicht. In Figur 7 ist der Einsatz 41 im dritten Kanal positioniert, was dem Niederdruckbetrieb entspricht. In Figur 8 ist der Einsatz 41 im ersten Kanal positioniert, was dem Hochdruckbetrieb entspricht. Die Schläuche 7, 8, 9 sind jeweils über die Befestigungsmittel 39 an den Anschlüssen befestigt, wobei der Schlauch 9 jeweils mit dem Einsatz 41 verbunden ist. Es ist deutlich zu erkennen, wie der mit Dichtungselementen 38 versehene Einsatz 41 der Überbrückung des ersten 31 bzw. zweiten Auslasses 24 dient. Die eingezeichneten Pfeile kennzeichnen jeweils den Flüssigkeitsstrom im gemischten Heiß und Kaltbetrieb.
• In den Figuren 9 bis 14 ist beispielhaft der Wasserfluss angedeutet, der sich in Abhängigkeit von der Positionierung des Einsatzes 41 in dem erfindungsgemäßen Anschlusssystem mit Wasserhahn und der angeforderten Wassertemperatur ergibt. Die Figuren zeigen dabei nacheinander die möglichen Varianten Niederdruckbetrieb mit Kaltwasser (Figur 9), Niederdruckbetrieb mit Warmwasser (Figur 10), Niederdruckbetrieb mit Mischwasser (Figur 11) Hochdruckbetrieb mit Kaltwasser (Figur 12), Hochdruckbetrieb mit Warmwasser (Figur 13), Hochdruckbetrieb mit Mischwasser (Figur 14).

The invention is explained in more detail below using the example of the figures. The same reference symbols in the figures have the same meaning in each case.

• Figure 1 shows the basic structure of a connection system according to the invention with a faucet with a mixer tap in an exploded view of a preferred embodiment. A water outlet 22 is arranged on the battery body 1. The battery body has a receiving space 28 for receiving the mixing cartridge 2. The mixing cartridge has three openings 19, 20, 21 on its underside. After the mixing cartridge 2 has been inserted into the receiving space 28, it is fixed by a clamping screw 3 relative to the x direction (not shown, orthogonal to the bottom of the receiving space), which is inserted into the screw thread 25 takes effect. A cover cap 4 is placed on the clamping screw 3 before the lever arm 5 is put on. The lever arm 5 also includes a hot / cold indicator to display the setting of the mixer tap depending on the position of the lever arm 5. The first channel runs between the first hole 13 and the first connection 14, and between the second hole 15 and the second connection The second channel runs 16 and the third channel runs between the third hole 17 and the third connection 18. The first channel is additionally connected to the water outlet 22 via a first outlet 31. The third channel is also additionally connected to the water outlet 22 via a second outlet 24. Both the first outlet 31 and the second Outlets 24 are arranged in the respective channels in such a way that they can be bridged by an insert 41, so that in each case liquid can flow between the connection and the hole without exiting through the outlet. The water tap is connected to the water supply or the low-pressure heater via connecting hoses 7, 8, 9 on the underside of the battery body 1. In Figure 1 the insert 41 is connected to the hose 9. The in Figure 1 The base of the faucet shown is hollow and creates a conduit space 30 through which the hoses 7, 8, 9 can be guided to the connections.
• Figure 2 FIG. 11 shows an enlarged illustration of the battery body 1 from FIG Figure 1 . In addition to those already for Figure 1 elements described, in particular the connecting elements 34 are shown schematically with which the hoses 7, 8, 9 can be connected to a water reservoir or a low-pressure heater.
• Figure 3 shows a mixing cartridge 2 in two views, namely from the side and with a view of the side facing away from the setting lever. In both cases, the first 19, second 20 and third opening 21 as well as the fixing elements of the mixing cartridge 2 can be seen, which are mostly projections.
• Figure 4 shows a schematic representation of the three channels running in the battery body 1 in a side view, ie in cross section. The first 13, second 15 and third hole 17 can also be seen, as can the first 14, second 16 and third connection 18 and the first 31 and second outlet 24. In addition, the channel walls 32 are identified.
• Figure 5 shows a preferred embodiment of an insert 41 for a connection system according to the invention, which is connected to a hose via a connection piece 35. The insert 41 has two sealing elements 38 at its insert tip 37, which are sealing rings. A screw thread is used as the fastening means 39, which in the preferred embodiment shown serves to fasten both the hose and the insert 41. The illustrated preferred insert 41 comprises the one facing away from the insert tip 37 Side a secondary sealing element 40, which is a sealing ring.
• Figure 6 shows a conventional connector 42 for connecting a hose to one of the connections 14, 16, 18 of the faucet, which is connected to a hose via a connector 35. A screw thread is used as the fastening means 39, which is used to fasten the hose to the battery body 1. The illustrated connector 42 includes a secondary sealing element 40 which is a sealing ring.
• The Figures 7 and 8 each show a schematic representation of the three channels running in the battery body 1 in a side view. In Figure 7 the insert 41 is positioned in the third channel, which corresponds to the low-pressure operation. In Figure 8 the insert 41 is positioned in the first channel, which corresponds to high pressure operation. The hoses 7, 8, 9 are each fastened to the connections via the fastening means 39, the hose 9 being connected to the insert 41 in each case. It can be clearly seen how the insert 41 provided with sealing elements 38 serves to bridge the first 31 or second outlet 24. The arrows shown indicate the liquid flow in mixed hot and cold operation.
• In the Figures 9 to 14 the water flow is indicated by way of example, which results as a function of the positioning of the insert 41 in the connection system according to the invention with a tap and the requested water temperature. The figures show one after the other the possible variants of low-pressure operation with cold water ( Figure 9 ), Low pressure operation with hot water ( Figure 10 ), Low pressure operation with mixed water ( Figure 11 ) High pressure operation with cold water ( Figure 12 ), High pressure operation with hot water ( Figure 13 ), High pressure operation with mixed water ( Figure 14 ).

Unfilled arrows indicate a cold water flow, arrows filled in black indicate a hot water flow, and arrows filled in black with white hatching indicate a mixed water flow. In addition to the schematic representation of the three channels running in the battery body 1 in the side view, the mixing cartridge 2 with its first 19, second 29 and third opening is also shown 21, wherein the merely schematic representation of the mixing cartridge is intended to clarify how the liquid flows in the mixing cartridge 2 are guided as a function of the setting of the adjusting lever 5.

Corresponding representations are known to the person skilled in the art, the reference symbols indicating the order in which the various elements and assemblies of the faucet are traversed. This can be seen using the example of Figure 12 illustrate. The cold water runs through the connection hose 9, which is attached to the first connection 14, from where it passes through the insert 41 to the first hole 13. Due to the position of the mixing cartridge 2, the cold water passes through the third opening 21 of the mixing cartridge 2 into the first opening 19, from where it passes through the third hole 17 into the third channel and finally via the second outlet 24 to the water outlet 22. Since the Figures 9, 10 and 11 To visualize the flow of the water flows in low-pressure operation, a low-pressure heater 29 is also drawn in, which is used to heat the cold water provided via the tap, which is then fed to the water outlet 22 via the first connection 14 and the first outlet 31. Since the precise design of the low-pressure heater 29 is not relevant for the function of the present invention, it is only indicated schematically.

It will be apparent to those skilled in the art that the concept of the present invention can be applied to faucets and connection systems of various sizes and is not limited to specific sizes.

Reference number

1

Battery body

2

Mixing cartridge

3

Clamping screw

4th

Cover cap

5

Lever arm

6th

Plug

7th

Connection hose

8th

Connection hose

9

Connection hose

13th

first hole

14th

first connection

15th

second hole

16

second connection

17th

third hole

18th

third connection

19th

first opening

20th

second opening

21

third opening

22nd

Water outlet

24

second outlet

25th

Screw thread

28

Recording room

29

Low pressure heating

30th

Management space

31

first outlet

32

Canal wall

34

Connecting element

35

Connector

37

Tip

38

Sealing element

39

Fasteners

40

secondary sealing element

41

commitment

42

Connector

Claims (10)

Faucet with mixer tap for use in a connection system for use as a high pressure or low pressure fitting, comprising: a water outlet (22), a battery body (1), and a mixing cartridge (2) with an adjusting lever, wherein the water outlet (22) is arranged on the battery body (1),
wherein the battery body (1) has a receiving space (28) for receiving the mixing cartridge (2), wherein the bottom of the receiving space comprises a first (13), a second (15) and a third hole (17), which act as channels extend through the battery body (1) and are suitable for being connected to water pipes on the outside of the battery body (1) facing away from the receiving space (28) at an associated first (14), second (16) and third connection (18), wherein the first channel connected to the first hole (13) is additionally connected to the water outlet (22) via a first outlet (31),
characterized in that the third channel connected to the third hole (17) is additionally connected to the water outlet (22) via a second outlet (24), the first outlet (31) and the second outlet (24) in the respective channels are arranged so that they can be bridged by an insert (41) so that liquid can flow between the connector and the hole without exiting through the outlet. Faucet according to Claim 1, the first (14) and / or second (16) and / or third connection (18), preferably all connections, being provided with screw threads. Faucet according to one of Claims 1 or 2, the first (31) and / or the second outlet (24) extending over more than half the circumference, preferably over the entire circumference, of the corresponding channel and in particular as an interruption of the respective channel are trained. Connection system for a faucet with mixer tap for use as a high-pressure or low-pressure fitting, comprising A. a faucet with mixer tap according to any one of claims 1 to 3; and B. an insert (41) for bridging the first (31) or second outlet (24) arranged in the first or third channel, so that liquid can flow between the connection and the hole without exiting through the outlet. Connection system according to claim 4, additionally comprising C. a plug (6) for closing the third channel at the third connection (18); and or D. two or three hoses (7, 8, 9) to connect the tap. Connection system according to one of claims 4 or 5, wherein the insert (41) is a rigid or flexible, preferably a rigid, hollow body, preferably a tube or hose,
and or
wherein the insert (41) has fastening means (39) for fastening the insert (41) in the battery body (1). Connection system according to one of claims 4 to 6, wherein the insert (41) comprises at least one sealing element (38) which at Inserting the insert (41) into the battery body (1) creates a liquid-tight connection between the insert (41) and the channel wall (32) of the respective channel, so that no water on the insert through the first (13) or third hole (17) can flow past into the respective channel. Connection system according to one of claims 4 to 7, wherein the insert (41) is connected to a hose (9) or can be connected to a hose (9) via a connector (35), which provides a liquid-tight connection between the insert (41) and the hose (9) allows. Connection system according to one of claims 5 to 8, for use as a high-pressure fitting, wherein the insert (41) is arranged in the first channel that liquid from the first connection (14) through the insert (41) and the first hole (13) on the first Outlet (24) can flow past into the mixing cartridge (2), and wherein the third connection (18) is closed in a liquid-tight manner by a stopper (6). Connection system according to one of claims 5 to 8, for use as a low-pressure fitting, wherein the insert (41) is arranged in the third channel that liquid from the third connection (18) through the insert (41) and the third hole (17) at the second Outlet (24) can flow past into the mixing cartridge (2).

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