CN115613658A - Sanitary fitting-wall connection and wall-mountable sanitary fitting - Google Patents

Abstract

Sanitary fitting-wall connection and wall-mountable sanitary fitting. The invention relates to a sanitary fitting-wall connection comprising a pipe connection piece (1), a pipe receptacle (2) with a wall-supporting end face (3) for receiving the pipe connection piece on the fitting side, and a wall connection-sealing body (4), and to a wall-mountable sanitary fitting equipped with the sanitary fitting-wall connection. According to the invention, the wall connection seal (4) has an annular shoulder (6) on the side (5) facing away from the wall, in which an outer edge (7) of the wall support end face (3) is received, wherein the wall connection seal projects radially outward from the outer edge of the wall support end face and axially from the wall support end face. Use of a sanitary mixer fitting, for example for use in a shower device.

Description

Sanitary fitting-wall connection and wall-mountable sanitary fitting

Technical Field

The invention relates to a sanitary fitting-wall connection comprising a pipe connection, a pipe receptacle with a wall-supporting end face for receiving the pipe connection on the fitting side, and a wall connection-sealing body, and to a wall-mountable sanitary fitting equipped with a sanitary fitting-wall connection.

Such sanitary fitting-wall connection is used to connect sanitary fittings, such as mixer fittings, shut-off fittings and water outlet fittings, to fluid-supplying, in particular water-conducting, installation connections on walls of buildings, shower rooms or the like. For this purpose, the pipe connection piece, which is accommodated with the pipe end on the fitting side in the pipe receptacle, is connected with the pipe end facing the wall in a fluid-tight manner to the corresponding mounting interface on the wall side, which is supplied with fluid, and the remaining part of the associated sanitary fitting, which usually comprises the fitting base body, is arranged on the wall in the region of the mounting interface, wherein the sanitary fitting bears against the wall region at least with the wall-supporting end face of the pipe receptacle directly or via a seal. The tube receptacle thus forms the part of the sanitary fitting which receives the fitting-side end of the tube connection piece and with which the sanitary fitting faces or rests against the wall in the assembled state. The wall support end face forms a support or contact surface of the pipe receptacle on the end side in the direction of the wall and thus also of the sanitary fitting containing the pipe receptacle. The pipe connections may be of the so-called S-connection type, for example. The wall connection seal acts as a sealing element for the sanitary fitting relative to the wall.

Background

The publication DE 198 46 779 A1 discloses a wall connection of this type, wherein the tube receptacle there comprises a seal carrier with an end face facing the wall, which serves as a wall-supporting end face of the tube receptacle and has an annular groove with a U-shaped cross section, into which an annular seal projecting axially from the wall-supporting end face is inserted. The sleeve can be detachably snapped onto the radially outer side of the seal carrier.

Further sanitary fitting-wall connections are known from publications EP 0 757 A1, EP 0 757 A1 and EP 2 778 A2, in which an annular seal is inserted for wall sealing into an annular groove of U-shaped cross section on the wall-facing wall-supporting end face.

In addition to the associated wall connection, the published german patent application DE 10 2005 052 919 A1 discloses another wall-mountable sanitary fitting of the type mentioned at the outset, in particular in the form of a hybrid battery, wherein the tube receptacle comprises a hollow projection of the fitting base of the hybrid battery, in which a gasket is arranged, in which a wall plate accommodating the tube connection is in turn arranged. The wall disk comprises, on the axial end side facing the wall, an axially projecting disk-shaped plastic element as a wall contact element and, on the circumferential side, on the end side close to the end facing away from the wall, an O-ring seal for fluid-tight sealing against the gasket. The wall disk and the spacer are fixed in their axial position in the hollow projection by a fixing screw which extends through the hollow projection and the spacer into an annular groove formed on the outer circumference of the wall disk.

DE 36 28 473 C2 discloses a sanitary fitting-wall connection of the type mentioned at the outset, which has a covering disc, preferably made of rubber material, which has a central insertion opening through which the tube connection piece of the wall connection extends. The cover plate has a wall contact area on the outer circumference. The sleeve can be pushed in a snap-fit manner onto the outer circumference of the covering disk. In the assembled state, the edge of the cover disk with its insertion opening abuts against an annular shoulder formed on the pipe connection piece.

Disclosure of Invention

The invention is based on the object of providing a sanitary fitting-wall connection of the type mentioned at the outset which is further improved over the prior art described above, in particular with regard to minimizing wall seals and/or structure-borne sound transmission. Furthermore, it is an object of the invention to provide a wall-mountable sanitary fitting which is equipped with such a sanitary fitting-wall connection.

The invention solves the problem by providing a sanitary fitting-wall connection having the features of claim 1 and a wall-mountable sanitary fitting having the features of claim 10. Advantageous developments of the invention are given in the dependent claims, the wording of which is hereby incorporated by reference into the description. This also includes, in particular, all embodiments of the invention which result from the combination of features which is defined by reference to the dependent claims.

In the sanitary fitting wall connection according to the invention, the wall connection seal has an annular shoulder on the side facing away from the wall, in which an outer edge of the wall support end face is accommodated, wherein the wall connection seal, which can be formed, for example, in an annular shape, projects radially outward from the outer edge of the wall support end face and axially projects from the wall support end face.

The wall connection seal, also referred to below simply as a seal, can be positioned or held on the tube receptacle in the region of the wall-supporting end face of the tube receptacle in this way and serves to seal the tube receptacle both axially forward and axially rearward with respect to the wall.

By the sealing body additionally projecting radially outward, when the wall connection or the associated sanitary fitting is mounted on the wall, the sealing body remains with the corresponding sealing section between the wall-supporting end face and the wall, rather than being pressed completely back into the sealing receptacle. This enables the wall connection and thus the sanitary fitting as a whole to be acoustically decoupled from the wall by the sealing body. In this case, the sealing body provides the only contact between the wall on the one hand and the wall connection or the sanitary fitting on the other hand, i.e. the rigid housing part and any other rigid shaped body part of the sanitary fitting can remain free from direct contact with the wall. The sealing body absorbs any acoustic or mechanical vibrations which can act on the rigid shaped body part of the sanitary fitting mounted on the wall during active operation, so that these acoustic vibrations are not transmitted to adjacent sections of the wall.

If necessary, the section of the sealing body projecting radially outward relative to the wall-supporting end face can also be used, for example, to fasten a cover part, such as a sleeve or another part of the sanitary fitting, to it, for example by means of a snap connection, a plug connection or a snap-in connection.

The invention thus makes it possible to achieve advantageous effects in terms of sealing the wall-mounted sanitary fitting against the wall and in terms of minimizing the transmission of structure-borne sound from the sanitary fitting to the wall by means of the sealing body.

In a development of the invention, the sanitary fitting-wall connection has a sleeve and the wall connection-sealing body has a socket plug-in section on the radial outside, said socket plug-in section being provided for detachably plugging in the sleeve. This achieves an advantageous use of the sealing body as a holder for a sleeve which, in a manner known per se, acts as an optical cover for a wall passage for the attachment of the sanitary fitting to a wall-side fitting for supplying a fluid. By means of this type of fixing on the sealing body, the sleeve can be configured relatively flat if required, which is desirable for many applications. Furthermore, if necessary, the transmission of structure-borne sound to the wall via the sleeve can be avoided in that the sleeve is arranged in the assembled state without direct touching contact with the wall and/or other rigid parts of the sanitary fitting. In alternative embodiments, the sleeve is missing or is fixed to other parts of the sanitary fitting.

In one embodiment of the invention, the radially outer side of the wall connection seal is provided for sealing the inserted bushing at least partially radially inward. This makes it possible to seal the gaps which are present between the sleeve and the pipe receptacle and/or the wall in a corresponding manner with relatively little effort. In an alternative embodiment, the gap remains unsealed or sealed by means of another seal.

In one embodiment of the invention, the wall connection seal is provided on the side facing away from the wall with a sleeve for axial sealing of the plug-in connection at least partially facing the wall. The sealing of the axial gap on the side of the sleeve facing the wall can thereby be achieved in an advantageous manner if desired. Alternatively such a gap may remain unsealed or sealed by another seal.

In one embodiment of the invention, the sleeve is held on the wall connection seal body without touching it with respect to the pipe receptacle. This measure prevents direct mechanical contact of the sleeve with the pipe receptacle and preferably also with the remaining rigid part of the associated sanitary fitting, and accordingly prevents the transmission of structure-borne sound from such a rigid part of the sanitary fitting via the sleeve to the wall on which the sanitary fitting is mounted. In alternative embodiments, the sleeve is missing or arranged in touching contact with the tubular receptacle.

In one refinement of the invention, the pipe receptacle has a hollow-cylindrical shape with an outer circumferential surface which is circular in cross section and a pipe receptacle space which is arranged eccentrically with respect to the outer circumferential surface and is circular in cross section. This measure can be implemented with relatively little effort in terms of production technology and enables an eccentric positioning of the part of the pipe connection piece received in the pipe receptacle relative to the outer circumferential surface of the pipe receptacle, which is desirable for the respective application. This eccentric positioning is used, for example, as is known per se, in conjunction with a pipe connection of the S-connection type for the purpose of placing the sanitary fitting at the wall or at the wall-side mounting interface there with assembly tolerance compensation. Both the outer circumferential surface and the pipe receiving space have a circular cross-sectional shape which is advantageous from a manufacturing point of view. In alternative embodiments, the tube receiving space is arranged coaxially centrally with respect to the outer circumferential surface of the tube receptacle, or a non-circular cross section is selected for the outer circumferential surface or the tube receiving space.

In a further development of the invention, the wall connection has a clamping holder which contains a fastening screw in the threaded opening of the tube receptacle and a ramp on the tube connection piece, wherein the fastening screw releases the insertion of the tube connection piece into the tube receptacle in the release position and, in the assembly position, presses the head end against the ramp and holds the tube receptacle on the tube connection piece in an axially compressed manner in the wall direction. This is a very advantageous measure for fastening the wall connection device and the sanitary fitting associated therewith to the wall-side mounting fitting, in that the tube receptacle is held clamped on the tube connection piece, which is itself connected to the wall-side mounting fitting, by means of a clamping holder.

By the interaction of the fastening screw and the ramp, the tube receptacle and thus the part of the sanitary fitting connected thereto can be moved or pressed axially toward the wall relative to the tube connection during the assembly of the sanitary fitting on the wall. This makes it possible to press the wall connection/sealing body against the wall when required and thus to provide the desired wall sealing of the assembled sanitary fitting. In an alternative embodiment, a conventional embodiment for fixing the tube receptacle to the tube connection piece is selected, for example by engaging a fixing screw in an annular groove on the tube connection piece.

In one embodiment of the invention, the tube receptacle has a greater wall thickness in the region of the threaded opening for the fastening screw than in the region opposite the peripheral side. This measure provides an advantageous compromise between the desire for a comparatively small wall thickness of the hollow cylindrical tube receptacle and the wall thickness of the tube receptacle required for stable holding of the fixing screw. The greater wall thickness of the tube receptacle in the region of the fastening screw can be achieved, for example, by an eccentric position of the outer circumferential surface of the tube receptacle on the one hand and of the tube receiving space on the other hand, or by the column wall of the tube receptacle being thickened in the region of the fastening screw, for example, by axial reinforcing webs or point-like, internal tube wall reinforcements. In an alternative embodiment, if such a thickening is not required, a uniform wall thickness of the tube receptacle is selected without thickening in the region of the fixing screws.

In one embodiment of the invention, the tube receptacle is held in the assembly position in a clamping manner on the tube connection part by a point contact formed by the head end of the fastening screw and a line contact lying opposite the point contact on the circumferential side. This combination of point and line contacts on opposite tube circumferential sides of the tube receptacle has proven to be very advantageous in terms of sufficient strength of the clamping holder and in terms of axial displaceability of the tube receptacle relative to the tube connection during assembly of the sanitary fitting. The axial fitting displaceability between the tube receptacle and the tube connection piece can be used, for example, for the press-fit fitting of a sanitary fitting or of a wall connection device in the wall direction by means of the mentioned interaction of the fastening screw with a bevel on the tube connection piece. In an alternative embodiment, the tube receptacle is held clamped on the tube connection, for example by means of a point contact and an opposite surface contact provided by a fixing screw.

The wall-mountable sanitary fitting according to the invention comprises a fitting base body and one or more wall connections according to the invention, wherein the tube receptacle of the respective wall connection is a one-piece component of the fitting base body or is fixed to the fitting base body. By using a corresponding wall connection, the effects and advantages explained above in relation to the wall connection are produced for the assembly of the sanitary fitting on the wall or for the sanitary fitting assembled on the wall, which need not be repeated here.

In the drawings, there is shown advantageous embodiments of the invention. These and other embodiments of the invention are explained in more detail below.

Drawings

Figure 1 shows a perspective view of a wall-mountable sanitary fitting with a sanitary fitting-wall connection,

figure 2 shows a top view of the sanitary fitting from above,

figure 3 shows a top view of the sanitary fitting from the front,

fig. 4 shows a sectional view along the line IV-IV in fig. 3.

FIG. 5 shows a cross-sectional view along the line V-V in FIG. 3, an

Fig. 6 shows a partial top view of the sanitary fitting from the rear.

Detailed Description

In the figures, the wall-mountable sanitary fitting according to the invention is shown in different views, with a fitting base 19 and at least one sanitary fitting-wall connecting device 20 according to the invention. The sanitary fitting shown can be, for example, in particular a mixer fitting with a hot water inlet 21, a cold water inlet 22 and a water outlet 23. The manual actuating lever 24 serves in the example shown as a user-operable mixer actuating interface and is coupled for this purpose in a conventional manner to a mixing valve device which is likewise conventional and is therefore not of further interest here, said mixing valve device being arranged in the fitting base 19.

In the illustrated example of a sanitary mixer fitting (also commonly referred to as a hybrid battery), the sanitary fitting comprises two wall connecting devices 20 according to the invention, wherein one wall connecting device is assigned to a hot water inlet 21 and the other wall connecting device is assigned to a cold water inlet 22. The two wall connection devices 20 have the same or at least largely similar type of construction in the example case shown, wherein one wall connection device is selected for the sectional view of fig. 4 and the other wall connection device is selected for the sectional view of fig. 5. In alternative embodiments of the invention, which are not shown, the sanitary fitting has only a single wall connection, or the sanitary fitting has a plurality of wall connections, although at least one of the wall connections is not realized exclusively by a wall connection according to the invention.

As an alternative to the embodiment shown as a hybrid battery, the sanitary fitting according to the invention can be, for example, a water outlet fitting which, depending on the embodiment and the application, in turn has a cold water inlet and a hot water inlet or alternatively only a single water inlet. In the latter case, a shut-off valve device is provided instead of the mixing valve device. It goes without saying that the use of the invention is not limited to sanitary fittings which conduct water, but also comprises sanitary fittings which conduct other fluids instead of water.

As can be seen in particular by way of the sectional views in fig. 4 and 5, the corresponding wall connection device 20 comprises a pipe connection element 1, a pipe receptacle 2 which receives the pipe connection element 1 on the fitting side and has a wall connection sealing body 4, which has a wall support end face 3.

In the assembled state of the wall connecting device 20 or sanitary fitting, the wall-supporting end face 3 forms the closest wall-facing surface of the wall connecting device 20 or sanitary fitting. In the example shown, the pipe connection 1 has a substantially conventional S-shaped connection type of construction. The tube receptacle 2 can, as in the two illustrated examples, be a one-piece component of the fitting base body 19, i.e. it can be formed on the fitting base body, or alternatively it can be realized as a separate component and fastened to the base fitting 19.

The sealing body 4 has an annular shoulder 6 on the side 5 facing away from the wall, in which an outer edge 7 of the wall-supporting end face 3 of the tube receptacle 2 is received. The sealing body 4 projects radially outwardly from the outer edge 7 of the wall-supporting end face 3. This results in a radial run-out Ru, as indicated in fig. 4. Furthermore, the sealing body 4 axially protrudes from the wall support end face 3. This results in an axial projection Au, as is also indicated in fig. 4. Preferably, as in the example shown, the wall connection sealing body 4 is formed as a ring-shaped sealing body.

By means of this special embodiment and positioning of the sealing body 4 in the region of the wall-supporting end face 3 of the tube receptacle 2, the sealing body 4 can be retained axially with a corresponding sealing section between the wall-supporting end face 3 and the adjacent region of the wall when the sanitary fitting is fitted to the wall. For the purpose of illustration, the wall 8 is shown in phantom in fig. 5, which is partially used for the relevant wall region. As can be seen from this, in the example case shown, the radially inner section 4a of the sealing body 4 is axially retained between the wall-supporting end face 3 of the pipe receptacle 2 and the wall 8.

In order to mount the sanitary fitting on the wall 8, the pipe connection piece 1 is first connected in a fluid-tight manner to an associated fluid-supply wall-side mounting connection or a corresponding mounting connection, which is accessible on the wall 8, in a manner that is conventional and therefore not described in detail here, so that the pipe connection piece 1 is held on a wall-side or building-side fluid-supply mounting device. Subsequently, the sanitary fitting is fixed to the pipe connection piece 1 via the wall connection 20, in particular by fixing the pipe receptacle 2 to the pipe connection piece 1. For orientation, the side of the sanitary fitting facing the wall 8 is currently referred to as the rear side and the opposite side as the front side. The side which is normally located above in the assembled state is referred to as the upper side and the opposite side as the lower side.

For the assembly process, it can be advantageously provided that the accommodation of the outer edge 7 of the tube receptacle 2 with its wall-supporting end face 3 in the annular shoulder 6 of the sealing body 4 is supported and fixed by a snap connection 31, which comprises an outer annular groove on the tube receptacle 2 and a snap/detent projection on the inner edge of the sealing body 4, which can snap into the annular groove. The sealing body 4 can thus be preassembled on the sanitary fitting, or in particular on its pipe receptacle 2, before the sanitary fitting is pushed onto the pipe connection 1. The sealing body can in this case act as an impact damper which prevents the sanitary fitting from unintentionally coming directly against the wall with its wall-supporting end face 3.

In an advantageous embodiment, the respective wall connection 20 has a sleeve 10, as in the example shown, and the wall connection/sealing body 4 comprises a socket plug-in section 11 on the radial outer side 4b, which is provided for detachably plugging in the sleeve 10. In this way, the sleeve 10 can be plugged or plugged onto the socket plug-in section 11 of the base and is thereby held on the sealing body 4.

Preferably, as in the example shown, the radial gap 9 can remain between the sleeve 10 and the pipe receptacle 2, so that there a transmission of structure-borne noise from the pipe receptacle 2 to the sleeve 10 can be avoided. Additionally or alternatively, an axial gap 25 can remain between the sleeve 10 and the wall 8, with which transmission of any structure-borne sound from the sleeve 10 to the wall 8 can be avoided.

As can be seen from the illustrated example, the above-described fastening of the sleeve 10 to the sealing body 4 results in a relatively flat design for the sleeve 10 in comparison with many conventional embodiments. In an alternative embodiment of the invention, the sleeve 10 may be of conventional type and/or secured to other components of the sanitary fitting in a conventional manner.

In an advantageous embodiment, the radially outer side 4b of the wall connection/sealing body 4 is provided, as in the example shown, for sealing the inserted sleeve 10 at least partially radially inwards. The formation of gaps there or sealing of gaps formed there can thereby be avoided. In order to be able to discharge, for example, penetrating leakage fluid, it is advantageous, as can be seen in the example shown with reference to fig. 4 to 6, to dispense with the radially inward sealing of the sleeve 10 at least in the region located below and to leave a leakage fluid discharge channel 26 there through a corresponding recess in the sealing body 4. In accordance with this, the sleeve 10 can be provided at its end face with an axial cutout 28 through which any leakage fluid from the leakage fluid discharge channel 26 can flow out of the wall connection 20 or sanitary fitting downwards without penetrating the wall 8 or still remaining thereon.

In a corresponding embodiment, the wall connection/sealing body 4 is provided on the side 5 facing away from the wall with a sleeve 10 for axially sealing the inserted sleeve at least partially facing the wall. Here, an axial gap 27 may be left locally between the sleeve 10 and the side 5 of the sealing body 4 facing away from the wall, in order to be able to guide any leakage fluid penetrating into the gap 9 between the pipe receptacle 2 and the sleeve 10 downward and to be discharged via the mentioned leakage fluid discharge channel 26 without it reaching the wall 8. Alternatively, as in the example shown, the axial gap 27 can be formed continuously on the circumferential side, without the sleeve 10 bearing axially against the sealing body 4 there.

In an advantageous embodiment, as in the example shown, the sealing body 4 is provided in its lower region on its end side facing the wall with a radially continuous recess 29, by means of which a fluid connection is made from the pipe receiving space 13 to the leakage fluid discharge channel 26. Any leakage fluid present in the pipe receiving space 13, for example due to the leaktightness of the O-ring seal recognizable in fig. 4 and 5 between the pipe connection 1 and the pipe receptacle 2, can thus flow out of the pipe receiving space 13 and be discharged via the leakage fluid discharge channel 26, so that the leakage fluid does not remain in the pipe receiving space 13 and also does not reach the wall 8. The same applies to any leakage fluid which penetrates into the pipe receiving space 13 or the corresponding space region of the wall 8 in front of the connection piece surrounding the pipe connection 1, for example through leaks in the seal between the wall support end face 3 and the wall 8.

The segment-shaped recess 30 provided in the example shown in the view of fig. 6 on the end face of the sealing body 4 facing the wall serves to save material.

In an advantageous embodiment, as in the example shown, the sleeve 10 is held on the wall connection sealing body 4 without touching it with respect to the pipe receptacle 2. The already mentioned radial gap 9 between the sleeve 10 and the pipe receptacle 2 can also contribute to this. This measure prevents a corresponding structure-borne sound transmission from the pipe receptacle 2 to the sleeve 10, as would otherwise occur in the case of direct mechanical contact.

In an advantageous embodiment, the pipe receptacle 2 has a hollow-cylindrical shape with an outer circumferential surface 12 having a circular cross section, and the pipe receptacle 13 is arranged eccentrically with respect to the outer circumferential surface and likewise has a circular cross section. The eccentric arrangement can be seen in particular in the illustration in fig. 6. It is drawn there that the longitudinal center plane LR of the pipe receiving space 13, which is circular in cross section, is offset by the eccentricity EA relative to the corresponding longitudinal center plane LA of the outer circumferential surface 12 of the pipe receiving space 2.

In an advantageous embodiment, as in the example shown, the respective wall connection 20 comprises a clamping holder 14 comprising a fixing screw 15 and an inclined surface 17, wherein the fixing screw 15 is arranged in a threaded opening 16 of the tube receptacle 2 and the inclined surface 17 is configured on the tube connection 1 modified in this respect with respect to the typical conventional embodiment. In a release position, not shown, the fixing screw 15 releases the insertion of the pipe connection 1 into the pipe receptacle 2. In the illustrated screwed-in position, i.e., in the assembled position, the head end 18 of the fastening screw 15 presses against the inclined surface 17, as a result of which a force is generated which is directed in the wall direction and thus presses the tube receptacle 2 axially in the wall direction, and as a result the tube receptacle 2 is then held in a clamping manner on the tube connection piece 1.

In an advantageous embodiment, as in the example shown, the tube receptacle 2 has a wall thickness WD in the region of the threaded opening 16 for the fastening screw 15, which is greater than the wall thickness in the region lying opposite the peripheral side, as is clearly indicated in fig. 5.

In an advantageous embodiment, the pipe receptacle 2 is held in a clamping manner in the assembly position on the pipe connection piece 1 by a point contact formed by the head end 18 of the fastening screw 15 and a line contact lying opposite the point contact on the circumferential side. On the one hand, axial assembly displaceability between the tube receptacle 2 and the received pipe connection 1 is thereby facilitated, in particular in comparison with the alternative surface contact of the tube receptacle 2 and the pipe connection 1, and on the other hand, a sufficient strength of the tube receptacle 2, and thus of the clamping holder of the entire wall connection device 20 or sanitary fitting on the pipe connection 1, which is held as mentioned on the associated wall-side mounting nipple for the supply fluid, is ensured by the combination of the point-like contact and the opposite line contact of the fastening screw 15. In order to provide a line contact instead of a surface contact, the outer circumferential surface of the pipe connection 1 can be designed accordingly, to which the above-described bevel design with the bevel 17 can also contribute.

As is clearly evident from the exemplary embodiments shown and the further-developed exemplary embodiments, the invention provides a wall connection which makes it possible to mount sanitary fittings on walls, such as building walls, shower walls or the like, particularly with regard to sealing and avoiding structure-borne sound transmission.

Claims (10)

1. A sanitary fitting-wall connection having

-a pipe connection (1),

-a tube receptacle (2) which receives the tube connection on the fitting side, the tube receptacle having a wall-supporting end face (3), and

-a wall connection-sealing body (4),

it is characterized in that the preparation method is characterized in that,

-the wall connection-sealing body (4) has an annular shoulder (6) on the side (5) facing away from the wall, in which annular shoulder an outer edge (7) of the wall support end face (3) is accommodated, wherein the wall connection-sealing body projects radially outward from the outer edge of the wall support end face and axially from the wall support end face.

2. Sanitary fitting-wall connection according to claim 1, further characterized in that the sanitary fitting-wall connection has a sleeve (10) and the wall connection-sealing body has on the radial outside (4 b) a socket plug-in section (11) which is provided for detachably plugging in the sleeve.

3. Sanitary fitting-wall connection as claimed in claim 2, further characterized in that a radially outer side of the wall connection-sealing body is provided for sealing the plugged sleeve at least partially radially inwards.

4. Sanitary fitting-wall connection as claimed in claim 2 or 3, further characterized in that the wall connection-sealing body is provided on the side facing away from the wall with a sleeve for axial sealing of the inserted sleeve at least partially facing the wall.

5. Sanitary fitting-wall connection according to one of claims 2 to 4, further characterized in that the sleeve is held on the wall connection-sealing body with respect to the tube receptacle without touching.

6. Sanitary fitting-wall connection according to one of claims 1-5, further characterized in that the tube receptacle has a hollow-cylindrical shape with a circular outer circumferential face (12) in cross section and a circular tube receiving space (13) in cross section arranged eccentrically with respect to the outer circumferential face.

7. Sanitary fitting-wall connection according to one of claims 1 to 6, further characterized by a clamping holder (14) which contains a fixing screw (15) in a threaded opening (16) of the tube receptacle and a ramp (17) on the tube connection piece, wherein the fixing screw releases the insertion of the tube connection piece into the tube receptacle in a release position and, in an assembly position, presses with a head end (18) against the ramp and holds the tube receptacle compressively clamped axially in the wall direction on the tube connection piece.

8. Sanitary fitting-wall connection according to claim 7, further characterized in that the tube receptacle has a greater wall thickness (Wd) in the region of the threaded opening for the fixing screw than in the region opposite on the circumferential side.

9. Sanitary fitting-wall connection according to claim 7 or 8, further characterized in that the tube receptacle is clampingly held in the fitting position on the tube connection piece by a point contact formed by the head end of the fixing screw and a line contact opposite to the point contact on the circumferential side.

10. A sanitary fitting for wall hanging, having

-a fitting base body (19), and

-at least one sanitary fitting-wall connection (20) according to one of claims 1 to 9, wherein the tube receptacle of the respective sanitary fitting-wall connection is an integral part of the fitting base body or is fixed to the fitting base body.

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