Adapter for attaching a sanitary fitting to a support and sanitary system

Abstract

The invention relates to an adapter for securing a sanitary fitting to a support, in particular a worktop or the like, comprising a base which can be inserted into an opening of the support in an insertion direction, at least one securing element with which the base can be secured to the support, wherein at least one connecting element is fixedly arranged in the adapter, which provides at least one connection, in particular a plurality of connections, for connecting hoses of a sanitary fitting.

Description

[0001] The invention relates to an adapter for securing a sanitary fitting to a support, in particular a worktop or the like, comprising a base which can be inserted into an opening of the support in an insertion direction and at least one securing element with which the base can be secured to the support.

[0002] The invention further relates to an adapter for securing a sanitary fitting to a support, in particular a worktop or the like, comprising a base which can be inserted into an opening of the support in an insertion direction.

[0003] The invention further relates to a system comprising a carrier with an opening and an adapter.

[0004] The invention further relates to a sanitary fitting system comprising a sanitary fitting and an adapter, wherein the sanitary fitting can be fixed to the support by means of the adapter.

[0005] Although applicable to any support, the present invention will be explained with reference to supports in the form of kitchen worktops.

[0006] Sanitary fittings are secured, for example, in a cutout of a sink or in a kitchen countertop using an adapter. A previously known adapter is shown in FR 301 55 33 B3. The adapter of FR 301 55 33 B3 comprises a mounting seat that interacts with a main body of the faucet, a water supply pipe coupling that is attached to and passes through the mounting seat to connect to a water supply pipe and a water supply inlet of the main body above the mounting seat, a bolt rod, and a locking block that is removably attached thereto and located below the mounting seat. The locking block comprises a base with a threaded hole and a pair of rotating elements that are pivotally connected to the base in one direction.When the rotating elements are unfolded or folded, the length of the block is larger or smaller than the inner diameter of a mounting hole in the faucet.

[0007] The disadvantage is that subsequent disassembly is more complex, as the rotating elements can only be swung back into their folded position manually. Another disadvantage is that the adapter is asymmetrically attached to the worktop due to the off-center arrangement of the rotating elements, which impairs the reliability of the attachment.

[0008] From CN 111677057 A, a mounting arrangement is known, comprising a sleeve that can be mounted in a mounting opening. In this case, a first connecting hole is formed in the side wall of the sleeve and a connecting rod is arranged in the first connecting hole. An external thread is formed on the circumference of the connecting rod. A fastening element that can rotate synchronously is in turn arranged on the external thread, wherein a threaded hole that matches the external thread is formed in the fastening element. The fastening element can perform a lifting movement along the connecting rod, a free part is formed in the circumferential surface of the sleeve, and the circumferential side wall and the free part of the sleeve can be formed such that the circumferential side wall limits an angle of rotation of the fastening element.

[0009] The disadvantage here is the complex installation of the fitting to be arranged on the adapter with the water guides through the adapter.

[0010] An object of the present invention is therefore to provide a more reliable fixing and simpler assembly and disassembly of an adapter for fixing a sanitary fitting as well as a system and a sanitary fitting system with respective adapter.

[0011] Another object of the present invention is to provide an alternative adapter, an alternative system and an alternative sanitary fitting system.

[0012] In one embodiment, the present invention can achieve the above-mentioned objects in an adapter for securing a sanitary fitting to a support, in particular a worktop or the like, comprising a base which can be inserted into an opening of the support in an insertion direction, at least one securing element with which the base can be secured to the support, in that at least one connection element is fixedly arranged in the adapter, which provides at least one connection, in particular several connections, for connecting hoses of a sanitary fitting.

[0013] In one embodiment, the present invention can achieve the above-mentioned objects with an adapter for securing a sanitary fitting to a support, in particular a worktop or the like, comprising a base which can be inserted into an opening of the support in an insertion direction, wherein the base has an asymmetrical contour in cross-section in the plane perpendicular to the insertion direction, in particular has a region deviating from the circular shape.

[0014] In one embodiment, the present invention can achieve the above-mentioned objects with a system comprising a carrier with an opening and an adapter according to claim 13, wherein the base of the adapter can be fixed in the carrier in a materially and positively locking manner.

[0015] In one embodiment, the present invention can achieve the above-mentioned objects with a sanitary fitting system comprising a sanitary fitting, an adapter according to one of claims 1-12 or an adapter according to claim 13, wherein the sanitary fitting can be fixed to the support by means of the adapter and wherein the sanitary fitting has a connection corresponding to the at least one connection element, wherein a substantially fluidic connection can be provided by means of the at least one connection and the at least one connection element in the fixed state to one another, and an electronic control unit for controlling valves for dispensing mixed and / or treated water by means of the sanitary fitting, wherein the electronic control unit can be connected to the sanitary fitting by means of at least one electrical cable through the adapter.

[0016] The term “sanitary” is to be understood in the broadest sense and refers, particularly in the claims, preferably in the description, generally to the kitchen area, the bathroom or laundry room area and the heating area.

[0017] One of the advantages achieved is that it enables simple and quick installation of a plumbing fixture on a support. Furthermore, the installation and removal of the plumbing fixture, for example, during maintenance, is quick and easy, while still allowing for reliable attachment of the fixture to the support. This eliminates the need for cumbersome, manual hose routing for multiple hoses, reducing the installation time for the plumbing fixture.

[0018] Further features, advantages and further embodiments of the invention are described below or will become apparent thereby.

[0019] According to an advantageous development of the invention, at least two fastening elements are arranged, in particular symmetrically, on the adapter. The advantage of this is that a uniform load distribution is provided when the adapter is secured to the support.

[0020] According to a further advantageous development of the invention, at least one stop is arranged for the at least one fastening element, in particular in a fastening position. This enables reliable positioning of the fastening element in the fastening position.

[0021] According to a further advantageous development of the invention, at least one actuating element is arranged for actuating the at least one fastening element, in particular, an actuating element is arranged for each fastening element. This allows the fastening element to be actuated in a simple and reliable manner.

[0022] According to a further advantageous development of the invention, the actuating element can be actuated on a first side of the adapter, and the securing elements are arranged on a second side, wherein the first and second sides are arranged on different sides of the support when the adapter is arranged in the support. This increases user satisfaction because the securing elements can be actuated from above a worktop, so that they are moved into their securing position below the worktop.

[0023] According to a further advantageous development of the invention, a feedthrough element for at least one hose is provided, which is designed in particular to be inserted into the adapter. The advantage of this is a defined hose guide for, for example, water-carrying hoses.

[0024] According to a further advantageous development of the invention, a hose feedthrough for passing through a shower hose and / or a cable feedthrough for passing through at least one electrical cable is arranged, in particular in the feedthrough element. This allows a signal cable or the like for controlling the sanitary fitting to be reliably arranged in the adapter, separate from the water supply.

[0025] According to a further advantageous development of the invention, the at least one fixing element can be brought from a first position - insertion position - into a second position - fixing position - by means of a rotation about an axis parallel to the insertion direction, so that in the fixing position the adapter is connected to the carrier in a force-fitting and / or form-fitting manner.

[0026] This allows for quick and easy installation of a sanitary fitting on a support with reliable fixing.

[0027] According to a further advantageous development of the invention, the at least one connection element has at least three connections. This provides a high degree of flexibility with regard to the dispensing of fluids via the sanitary fitting. The connections can be used for cold, hot, and treated water, such as filtered, boiling, carbonated, or chilled water.

[0028] According to a further advantageous development of the invention, at least one connection is designed in the form of a hose nozzle. This has the advantage of allowing a hose to be attached quickly and easily.

[0029] According to a further advantageous development of the invention, at least one connection comprises elements of a hose coupling element, in particular a John Guest adapter. The advantage of this is particularly reliable fastening and thus water flow. Furthermore, the elements can be provided cost-effectively.

[0030] According to a further advantageous development of the invention, an external thread is provided, on which at least one fastening element in the form of a nut can be arranged to secure the adapter to the carrier. The advantage of this is a particularly simple, cost-effective, and reliable fastening of the adapter by means of a nut with an internal thread corresponding to the external thread.

[0031] Further important features and advantages of the invention emerge from the subclaims, from the drawings and from the associated description of the figures with reference to the drawings.

[0032] It is understood that the features mentioned above and those to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.

[0033] Preferred embodiments and embodiments of the present invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components or elements.

[0034] It shows in schematic form Fig. 1 shows an adapter according to an embodiment of the present invention in three-dimensional view; Fig. 2 shows an adapter according to an embodiment of the present invention in a three-dimensional view; Fig. 3 the adapter according to Fig. 2 in a supervision; Fig. 4 shows an adapter according to an embodiment of the present invention in a three-dimensional view; Fig. 5 shows an adapter according to an embodiment of the present invention in three-dimensional view; and Fig. 6 a sanitary fitting system according to an embodiment of the present invention.

[0035] Fig. 1 shows an adapter according to an embodiment of the present invention in three-dimensional view.

[0036] In Fig. 1 shows a substantially cylindrically shaped adapter 1. The adapter 1 has a base 2 and a flange 3 extending radially around the base 2. By means of the flange 3, the base 2 is divided into an upper region 2a, which is arranged above the support when the adapter 1 is secured to a support, for example, a worktop, and a lower region 2b, which is arranged below the support when the adapter 1 is secured to the support. The adapter 1 is inserted into a support in the insertion direction E.

[0037] In the upper region 2a, the base 2 has a connection element 8 which can be inserted into the base 2 in particular and which has a connection projection 9 with two round recesses 9a. These correspond to projections in a sanitary fitting, so that a fluid connection is provided between the sanitary fitting and the adapter 1 if necessary by means of intermediate seals when the sanitary fitting is secured to the support by means of the adapter 1. The connection element 8 further has a particularly asymmetrical opening 8a in which a feed-through element 7 with a shower hose feed-through 7a and with a feed-through 7b for electrical control lines is arranged, in particular partially connected to the shower hose feed-through 7a. In addition, two feed-throughs 6 are arranged, offset from one another by 180 degrees here, for the passage of screws 6a, 6b.The screws 6a, 6b extend from the upper region 2a to the lower region 2b of the base 2 and are each provided with a protective cap 5a, 5b at their lower ends. In the lower region 2b of the base 2, which is essentially hollow-cylindrical in shape, two openings 13a, 13b are arranged in the wall of the hollow cylinder in the region of the screws 6a, 6b. Furthermore, the screws 6a, 6b are provided with arcuate arms 4a, 4b arranged on the screws 6a, 6b, which, when the screws 6a, 6b are actuated, can be brought from a position within the circumferential surface of the hollow cylinder in the lower region 2b - insertion position - into a securing position in which the arms 4a, 4b protrude laterally above or perpendicular to the circumferential surface of the lower region 2b.To ensure that the arms 4a, 4b remain in their fixed position when adjusting their height to clamp the adapter 1 to the carrier, the edges 16 of the openings 13a, 13b each form stops for the arms 4a, 4b. By operating the screws 6a, 6b, the height of the arms 4a, 4b can be adjusted relative to the insertion direction E or the axis of the adapter 1.

[0038] In order to fix the adapter 1 to a support, the arms 4a, 4b are first brought into the insertion position, the adapter 1 is inserted into the opening provided for it in the support in the insertion direction E and then the screws 6a, 6b are actuated until the arms 4a, 4b rest in their fixing position with a force fit and, against the insertion direction E, at least partially with a form fit on the underside of the support, for example a worktop, and thus clamp the support together with the circumferential flange 3 to the worktop as a whole.

[0039] In addition, the base 2 has a guide groove 15 which prevents unintentional twisting or incorrect placement of the sanitary fitting, which has a corresponding projection for engagement with the guide groove, on the base 2.

[0040] Fig. 2 shows an adapter according to an embodiment of the present invention in three-dimensional view and Fig. 3 the adapter according to Fig. 2 in one view.

[0041] In Fig. 2 and Fig. 3 shows an adapter 10 which also has a cylindrical cross-section. In contrast to the adapter 1 according to Fig. 1, the adapter 10 has, according to the Fig. 2 and Fig. 3 has neither a circumferential flange nor screws or openings in a lower area. The adapter 10 according to Fig. 2 and Fig. 3 is formed in one piece and has connections 9 in a projection upwards, which are in the form of recesses analogous to the adapter 10 according to Fig. 1. Furthermore, the adapter 10 according to the Fig. 2 and Fig. 3 an oval opening 18b for the passage 7b of one or more electrical cables and a circular opening 18a as a shower hose passage 7a.

[0042] The peripheral surface of the adapter 10 is flattened on one side compared to the round cross-section (reference numeral 11). The peripheral surface of the adapter 10 serves to firmly fix the adapter 10, for example, by gluing, to the inner side of an opening in a carrier that corresponds to the peripheral surface of the adapter.

[0043] Fig. 4 shows an adapter according to an embodiment of the present invention in three-dimensional view.

[0044] In Fig. 4 shows an adapter 1 which is analogous to the adapter 1 according to Fig. 1 has a circumferential flange 3 which divides a base 2 of the adapter 1 into an upper region 2a and a lower region 2b. In the upper region 2a, a connection element 8 is arranged which has a connection projection 9 with three round recesses 9a, 9' as connections for hoses. These are arranged triangularly in the top view. These recesses 9a, 9' correspond to projections in a sanitary fitting, so that a fluid connection is provided between the sanitary fitting and the adapter 1, if necessary by means of additional seals, when the sanitary fitting is fixed to the carrier by means of the adapter 1. The connection element 8 further has a round passage 18a for the shower hose passage as well as a passage 18b for one or more electrical control lines, in particular partially connected to the passage 18a.The feedthrough 18a has a circular cross-section which extends partially into the projection, in particular with a recess 20 in the connecting projection 9.

[0045] In the lower area 2b, the adapter 1 has an external thread 17. By means of a nut with an internal thread corresponding to the external thread 17, the nut can be screwed on from below, thus securing the adapter 1 to a support such as a worktop.

[0046] Fig. 5 shows an adapter according to an embodiment of the present invention in three-dimensional view.

[0047] In Fig. 5 is essentially an adapter 1 according to Fig. 1. In contrast to adapter 1 according to Fig. 1, the adapter 1 according to Fig. 5 in the lower region 2b for connecting a hose, a hose nozzle 21 which corresponds to the connection 9' in the upper region 2a and provides a fluid connection between a hose connected thereto and the connection 9'. Furthermore, a partial John Guest connection is arranged in the lower region 2b (reference number 13). The term "partially" is to be understood here that elements of the John Guest connection are provided with which a hose can be secured and thus a fluid connection between the hose and the connection 9 can be provided. The John Guest connection elements provided can be part of the housing of a John Guest adapter, a seal and a clamping device for the hose, wherein the clamping device can be secured with the aid of a retaining ring.

[0048] Furthermore, a radially circumferential recess can be provided on the underside of the flange 3, into which a sealing ring 12 can be inserted.

[0049] Fig. 6 shows a sanitary fitting system according to an embodiment of the present invention.

[0050] In Fig.6 shows a sanitary fitting system with a sanitary fitting 100. The sanitary fitting 100 has two outlets 100a, 100b, the first outlet 100a being connected to a water treatment device 104 with electronic control of valves for providing treated water, such as filtered or carbonated water. For this purpose, the water treatment device 104 is connected to a cold water connection 102. The other outlet 100b is provided for dispensing mixed water. An electronic valve box 101, which is connected to a cold and hot water connection 102, 103, is provided for dispensing the mixed water. Both the water treatment device 104 and the electronic valve box 101 are electrically connected to actuation and / or selection elements in the sanitary fitting 100.The actuating and / or selection elements can be arranged both on a base body or element of the sanitary fitting 100 and separately from it, for example in a worktop or the like.

[0051] In further embodiments, individually or jointly - the adapter can only be used for mixed water, but also for mixed water and refined or treated water such as soda, filtered water, boiling hot water, etc. - the adapter has holes in its upper cylindrical section for connecting sanitary fittings to water pipes. - the lower section of the adapter is designed as a hollow cylinder which has at least one cutout in a side wall. - the upper cylindrical section is arranged above the support, in particular a sink / worktop, and the lower section is arranged below it. - The upper section, which rests on the support, must have a seal to prevent water from flowing through the opening in the support, for example, a countertop / sink. This can be an O-ring or a flat gasket. - The lower and upper sections can also be made from multiple components. Additionally, different materials can be used for the sections. - the adapter can be used for, for example, standardized hole diameters in the sanitary area, especially in the kitchen area, in particular for the standard Ø35 mm hole in a support, for example a worktop. - the adapter can have a different shape, for example a polygonal body, if the opening of the carrier is designed accordingly. - The water pipes are routed from below through the hollow body or the lower section and pre-assembled on the underside of the upper part / section of the adapter, for example, in the form of a thread, plug-in system, etc. Various hose types are possible. For example, a standard steel braided hose for cold and hot water can be screwed into the adapter. Another option is a connector for securing a plastic hose. Another option is to secure a plastic hose using a hose nozzle. - The upper section must have a feedthrough through which the shower hose and a signal cable can be routed. It is also possible to route the shower hose and signal cable without directly routing them through the feedthrough. If no shower hose and signal cable are provided, the feedthrough in the adapter can be omitted. Furthermore, the shower hose can be connected to the other hose section with a thin adapter piece, allowing the shower hose and adapter piece to be removed above the adapter. - The signal cable can be connected using a plug-socket connection in the adapter. This simplifies installation, as the signal cable in the base cabinet does not need to be unplugged after initial installation when changing the fitting. The adapter can be equipped with corresponding connections in the lower and upper sections for connecting control cables. The sanitary fitting can then also have corresponding connections, so that when the sanitary fitting is attached to the adapter, it establishes an electrical connection with one or more of the adapter's connections. - wireless signal transmission between electronic control elements below the support, for example between electronic valves and operating and / or control elements of the sanitary fitting, may be provided. - the adapter must have at least one screw hole through which a threaded rod and / or screw is guided. A retaining element can be screwed onto the threaded rod / screw, which extends or retracts as the threaded rod / screw rotates. The retaining element(s) can be limited in their extension direction by cutouts in the lower section. The retaining elements can be moved up or down by the rotation of the screw / threaded rod and, once they reach their final position on the worktop / sink, can secure the base in its position. - The adapter must have a guide element, such as a guide groove, a cylindrical pin, etc., which secures the position of the sanitary fitting relative to the adapter. The sanitary fitting must, in particular, have the appropriate connection pattern for the adapter, i.e., connections for water pipes, hose showers, signal cable positioning, and the counterpart to the guide element. In addition, a connecting element for securing the sanitary fitting to the adapter can be provided, which is provided in the sanitary fitting and the adapter, for example, a grub screw, a clip, a fit, a thread, a spring-loaded pressure piece, etc. - The connections for water pipes are integrated into the sanitary fitting and are designed in the form of a cylindrical body with a through hole and O-ring groove. This connection can be realized using a separate component, which is attached to the adapter or the fitting body before the sanitary fitting is installed. The connecting component can also have a thread and a seal or be designed as a plug-in system. - An intermediate piece can be mounted on the adapter, which blocks, converges, and / or diverts the water paths defined within the adapter. For example, an adapter with four water-carrying pipe connections can combine these into two pipes. - the adapter, in particular the aforementioned intermediate piece, also has a check valve that is inserted against the flow direction to ensure that no water can escape when removing the sanitary fitting if a corner valve of a domestic connection or an electronic cartridge / water supply device is not closed or de-energized. The check valve can, for example, be opened by the counterpart in the sanitary fitting and arranged in the adapter. The sealing seat can be designed to seal before the check valve is opened by the counterpart. - The adapter and the plumbing fixture have a sensor, RFID chip, or similar device that detects which plumbing fixture is mounted on the adapter or whether a plumbing fixture is mounted on the adapter. This allows a safety function to be integrated that prevents water from leaking when the plumbing fixture is removed by de-energizing the electronic cartridge. By detecting which plumbing fixture is attached, the electronic cartridge could automatically adjust the water type. - The upper part of the adapter, which ensures adaptation to the plumbing fixture, connects the water pipes, etc., remains unchanged as described above. However, a standard threaded sleeve (M33x1.5) can be mounted on the lower part of the adapter. This eliminates the need for the two screws and retaining elements, providing a larger free (cross-sectional) area in the adapter. This reduces manufacturing costs. - the adapter is pre-assembled. To simplify installation, the lower section of the adapter with the retaining elements and screws can be omitted. The adapter can be attached to the countertop or sink using a material bond, such as gluing. The adapter would then be delivered pre-assembled with the sink. - To increase the adapter's stability, it should be secured from below with a nut or similar device after pre-assembling it on the sink. The adapter may have a matching counterpart. - Fixation can be achieved via a frictional connection, which secures the adapter in position after insertion, for example, using clamps or spring elements. In this version, the adapter can also be delivered pre-assembled with the sink. A guide via the support, particularly a worktop / sink wall, can also be provided.

[0052] In summary, embodiments of the invention may provide at least one of the following features and / or at least one of the following advantages: - A reliable determination. - Simple, quick and cost-effective installation, especially of water guides. - High flexibility with regard to different carriers. - Easy assembly and disassembly of sanitary fittings on the carrier and / or the adapter.

[0053] Although the present invention has been described using preferred embodiments, it is not limited thereto but can be modified in many ways. List of reference symbols 1 adapter 2 bases 2a Upper area 2b Lower area 3 Flange 4a, 4b Kidney-shaped arm 5a, 5b end cap 6 Feedthrough screw 6a, 6b screw 7 Feedthrough element 7a Shower hose feedthrough 7b Electrical cable feedthrough 8 connecting element 8a Opening 9 Connection projection 9a, 9' deepening 10 adapters 11 page, flattened 12 Sealing ring 13 John Guest Connection 13a, 13b Opening 15 Guide groove 16 edges 17 external threads 18a Round Implementation 18b Oval passage 20 recess 21 hose nozzle 100 sanitary fittings 100a, 100b outlet 101 Valve box 102 Cold water connection 103 Hot water connection 104 Water treatment facility E Insertion direction FP fixing position QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] FR 301 55 33 B3

[0006] CN 111677057 A

[0008]

Claims

[1] Adapter (1) for fixing a sanitary fitting (100) to a support, in particular a worktop or the like, comprising a base (2) which can be inserted into an opening of the carrier in an insertion direction (E), and at least one fixing element (4a, 4b) with which the base (2) can be fixed to the support, characterized by , that at least one connection element (8) is fixedly arranged in the adapter (1, 10), which provides at least one connection, in particular a plurality of connections (9a, 9'), for connecting hoses of a sanitary fitting (100). [2] Adapter (1) according to claim 1, characterized by that at least two fixing elements (4a, 4b) are arranged, which are arranged in particular symmetrically on the adapter (1). [3] Adapter (1) according to one of claims 1-2, characterized bythat at least one stop (16) for the at least one fixing element (4a, 4b) is arranged, in particular in a fixing position (FP). [4] Adapter (1) according to one of claims 1-3, characterized by that at least one actuating element (6a, 6b) is arranged for actuating the at least one fixing element (4a, 4b), in particular wherein an actuating element (6a, 6b) is arranged for each fixing element (4a, 4b). [5] Adapter (1) according to claim 4, characterized by that the actuating element (6a, 6b) can be actuated on a first side (2a) of the adapter (1) and the fixing elements (4a, 4b) are arranged on a second side (2b), wherein the first and second sides (2a, 2b) are arranged on different sides of the carrier when the adapter (1) is arranged in the carrier. [6] Adapter (1) according to one of claims 1-5, characterized bythat a feedthrough element (7) for at least one hose is arranged, which is designed in particular to be insertable into the adapter (1). [7] Adapter (1) according to one of claims 1-6, characterized by that a hose feedthrough (7a) for passing through a shower hose and / or a cable feedthrough (7b) for passing through at least one electrical cable is arranged, in particular in the feedthrough element (7). [8] Adapter (1) according to one of claims 1-7, characterized by that the at least one fixing element (4a, 4b) can be brought from a first position - insertion position - into a second position - fixing position (FP) - by means of a rotation about an axis parallel to the insertion direction (E), so that in the fixing position (FP) the adapter (1, 10) is connected to the carrier in a force-fitting and / or form-fitting manner. [9] Adapter (1) according to one of claims 1-8, characterized bythat the at least one connection element (8) has at least three connections (9, 9'). [10] Adapter (1) according to one of claims 1-9, characterized by that at least one connection (9, 9') is designed in the form of a hose nozzle (21). [11] Adapter (1) according to one of claims 8-10, characterized by that at least one connection (9, 9') has elements of a hose coupling element, in particular a John Guest adapter (13). [12] Adapter (1) according to one of claims 1-11, characterized by that an external thread (17) is arranged, on which at least one fixing element in the form of a nut for fixing the adapter (1) to the carrier can be arranged. [13] Adapter (10) for fixing a sanitary fitting (100) to a support, in particular a worktop or the like, comprising a base (2) which can be inserted into an opening of the carrier in an insertion direction (E), wherein the base (2) has an asymmetrical contour (11) in cross-section in the plane perpendicular to the insertion direction (E), in particular has a region deviating from the circular shape. [14] System comprising a carrier with an opening and an adapter (10) according to claim 13, wherein the base (2) of the adapter (10) can be fixed in the carrier in a material and form-fitting manner. [15] Sanitary fitting system, comprising a sanitary fitting (100), an adapter (1) according to one of claims 1-12 or an adapter (10) according to claim 13, wherein the sanitary fitting (100) can be fixed to the support by means of the adapter (1, 10) and wherein the sanitary fitting (100) has a connection corresponding to the at least one connection element (8), wherein a substantially fluidic connection can be provided by means of the at least one connection and the at least one connection element (8) in the mutually fixed state, and an electronic control unit (101) for controlling valves for dispensing mixed and / or treated water by means of the sanitary fitting (100), wherein the electronic control unit (101) can be connected to the sanitary fitting (100) by means of at least one electrical cable through the adapter (1, 10).

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