Sanitary fitting and method for assembling a sanitary fitting

Abstract

The invention relates to a sanitary fitting (1), at least comprising: a fitting housing (2) with an outlet (3) and at least one outlet opening (4), with the fitting housing (2) comprising a main installation space (5) and at least one secondary installation space (6, 7); a mixing valve (8) for mixing cold water and hot water to form mixed water, with the mixing valve (8) being arranged at least partially in the at least one secondary installation space (6, 7); a first plastic inner body (9) with a first cold water channel (11) for the cold water, a first hot water channel (13) for the hot water and a first mixed water channel (15) for the mixed water, wherein the first plastic inner body (9) is arranged in the main installation space (5); and a second plastic inner body (10) with a second cold water channel (12) for the cold water, a second hot water channel (14) for the hot water and a second mixed water channel (16) for the mixed water, wherein the second plastic inner body (10) extends from the at least one secondary installation space (6, 7) into the main installation space (5), so that the first cold water channel (11) is connected to the second cold water channel (12), the first hot water channel (13) is connected to the second hot water channel (14) and the first mixed water channel (15) is connected to the second mixed water channel (16). The invention also relates to a method for assembling the sanitary fitting (1).

Description

[0001] Sanitary fitting and method for assembling a sanitary fitting

[0002] The present invention relates to a sanitary fitting and a method for assembling the sanitary fitting, which can be used in particular in connection with sinks and / or wash basins.

[0003] Sanitary fittings are used in sinks, wash basins, bathtubs, and / or showers to provide a liquid, particularly water, as needed. For this purpose, sanitary fittings may have a fitting housing with a spout and an outlet opening for the liquid. The fitting housing of the sanitary fitting can be attached to a support, for example, a worktop or a sink or wash basin. Furthermore, sanitary fittings may have a mixing valve through which cold water and hot water can be mixed to create mixed water at a desired mixed water temperature. Sanitary fittings are also known with which various liquids, such as mixed water, carbonated liquid, flavored liquid, filtered liquid, chilled liquid, and / or hot water, can be drawn.To guide cold water, hot water, mixed water, and / or other fluids through the sanitary fitting, a plastic water guide is installed in the fitting body, preventing contact between the fluids and the fitting body. This allows the fitting body to be made of a material that is not suitable for drinking water but is cost-effective, such as a zinc alloy. However, the plastic water guide requires a lot of space within the fitting body, which limits the design freedom of the fitting body.

[0004] The object of the invention is therefore to at least partially solve the problems described with reference to the prior art and, in particular, to provide a sanitary fitting whose plastic water guide requires less installation space. In addition, a method for assembling the sanitary fitting is to be specified, with which a plastic water guide can be mounted in the fitting housing with less installation space. These objects are achieved by a sanitary fitting and a method according to the features of the independent patent claims. Further advantageous embodiments of the invention are specified in the dependent patent claims. It should be noted that the features individually listed in the dependent patent claims can be combined with one another in any technologically expedient manner and define further embodiments of the invention.Furthermore, the features specified in the patent claims are further specified and explained in the description, with further preferred embodiments of the invention being presented.

[0005] A sanitary fitting that has at least the following contributes to this:

[0006] - a fitting housing with an outlet and at least one outlet opening, wherein the fitting housing comprises a main assembly space and at least one secondary assembly space;

[0007] - a mixing valve for mixing cold water and hot water to form mixed water, wherein the mixing valve is arranged at least partially in the at least one secondary assembly space;

[0008] - a first plastic inner body with a first cold water channel for the cold water, a first hot water channel for the hot water and a first mixed water channel for the mixed water, wherein the first plastic inner body is arranged in the main assembly space; and

[0009] - a second plastic inner body with a second cold water channel for the cold water, a second hot water channel for the hot water, and a second mixed water channel for the mixed water, wherein the second plastic inner body extends from the at least one secondary assembly space into the main assembly space, such that the first cold water channel is connected to the second cold water channel, the first hot water channel is connected to the second hot water channel, and the first mixed water channel is connected to the second mixed water channel. The sanitary fitting is used in particular for the demand-based provision of water or mixed water to a sink and / or a washbasin. The sanitary fitting comprises a fitting housing, which can in particular be made at least partially of plastic and / or (cast) metal, such as brass or a zinc alloy. The fitting housing can be at least partially tubular.The faucet housing can be attached to a support, for example, a worktop, the sink, or the washbasin, and / or has a (protruding or branching) outlet that is rigidly or movably connected to the faucet housing. The outlet can be at least partially tubular and / or has at least one outlet opening. The at least one outlet opening can, for example, be designed in the manner of a jet former or mousseur or comprise such a jet former.

[0010] The valve housing has a main assembly space and at least one secondary assembly space. The main assembly space can be formed in a vertical section of the valve housing. The main assembly space can extend from a housing underside of the valve housing or from a first assembly opening of the valve housing, for example in a vertical direction and / or along a (particularly straight) first longitudinal axis, into the valve housing. The main assembly space can be at least partially cylindrical. The main assembly space can have (particularly parallel to the first longitudinal axis) a main assembly space length of, for example, 50 mm to 300 mm and / or (particularly orthogonal to the first longitudinal axis) a main assembly space diameter of, for example, 20 mm to 80 mm. The at least one secondary assembly space can be formed in a horizontal section of the valve housing.The at least one secondary assembly space can extend from a second assembly opening of the valve housing, for example in a horizontal direction and / or along a (particularly straight) second longitudinal axis, into the valve housing. The second longitudinal axis can run orthogonal to the first longitudinal axis. The at least one secondary assembly space can have (particularly parallel to the second longitudinal axis) a secondary assembly space length of, for example, 30 mm to 80 mm and / or (particularly orthogonal to the second longitudinal axis) a secondary assembly space diameter of, for example, 20 mm to 60 mm. The main assembly space and the at least one secondary assembly space are in particular connected to one another within the valve housing. The at least one secondary assembly space can be at least partially cylindrical. The at least one secondary assembly space can run at least partially orthogonal to the main assembly space.

[0011] The sanitary fitting has a mixing valve for mixing cold water at a cold water temperature and hot water at a hot water temperature to form mixed water at a desired mixed water temperature. The cold water temperature is in particular a maximum of 25°C, preferably 1°C to 25°C, particularly preferably 5°C to 20°C, and / or the hot water temperature is in particular a maximum of 90°C, preferably 25°C to 90°C, particularly preferably 55°C to 65°C. The mixing valve can be designed, for example, in the manner of a mixing cartridge. The sanitary fitting can have at least one actuating device, for example in the manner of an actuating handle or actuating lever, by means of which the mixing valve can be actuated by a user of the sanitary fitting. For example, the mixed water temperature and / or a discharge of the mixed water via the at least one outlet opening can be controlled with the at least one actuating device.The mixing valve is arranged at least partially in the at least one secondary assembly space. The mixing valve can be arranged in the at least one secondary assembly space, in particular via the second assembly opening, or can be inserted into the at least one secondary assembly space through the second assembly opening.

[0012] The sanitary fitting has a first plastic inner body with a first cold water channel for the cold water, a first warm water channel for the warm water, and a first mixed water channel for the mixed water. The first plastic inner body consists at least partially of plastic and / or is designed as a plastic injection-molded part. The first plastic inner body can be formed integrally with the first cold water channel, the first warm water channel, and the first mixed water channel. The first plastic inner body can be at least partially cylindrical and / or have a, in particular cylindrical, outer surface. The first plastic inner body can extend from a bottom side to a top side along a, in particular straight, first insert longitudinal axis.The first plastic inner body can have (in particular parallel to the first insert longitudinal axis) a first insert length of, for example, 50 mm to 300 mm and / or (in particular orthogonal to the first insert longitudinal axis) a first insert diameter of, for example, 20 mm to 80 mm. The first insert diameter of the first plastic inner body can (substantially) correspond to the main assembly space diameter of the main assembly space. The first plastic inner body is arranged in the main assembly space. The first plastic inner body is designed such that it can be arranged in the main assembly space or inserted into the main assembly space through the first assembly opening. The first plastic inner body can be fastened in the main assembly space.

[0013] The sanitary fitting has a second plastic inner body for connecting the first plastic inner body to the mixing valve. The second plastic inner body has a second cold water channel for the cold water, a second hot water channel for the hot water, and a second mixed water channel for the mixed water. The second plastic inner body is made at least partially of plastic and / or is designed as a plastic injection-molded part. The second plastic inner body can be formed integrally with the second cold water channel, the second hot water channel, and the second mixed water channel. The second plastic inner body can be at least partially cylindrical and / or plate-shaped. The second plastic inner body can extend along a, in particular straight, second longitudinal axis of the insert.The second plastic inner body can have (in particular parallel to the second insert longitudinal axis) a second insert length of, for example, 10 mm to 50 mm and / or (in particular orthogonal to the second insert longitudinal axis) a second insert diameter of, for example, 20 mm to 60 mm. The second insert diameter of the second plastic inner body can (substantially) correspond to the secondary assembly space diameter of the at least one secondary assembly space. The second plastic inner body is arranged in the at least one secondary assembly space. The second plastic inner body is designed such that it can be arranged in the at least one secondary assembly space or inserted into the at least one secondary assembly space through the second assembly opening. The second plastic inner body can be fastened in the at least one secondary assembly space.The second plastic inner body is arranged in the at least one secondary assembly space such that the second plastic inner body extends from the at least one secondary assembly space into the main assembly space, such that the first cold water channel is connected to the second cold water channel, the first hot water channel is connected to the second hot water channel, and the first mixed water channel is connected to the second mixed water channel (in a fluid-conducting manner). In particular, a first longitudinal end of the second plastic inner body can be arranged in the main assembly space, and a second longitudinal end of the second plastic inner body can be arranged in the at least one secondary assembly space. The second plastic inner body in particular has a connecting geometry for the mixing valve. The connecting geometry can, for example, be formed on the second longitudinal end of the second plastic inner body.The mixing valve is in particular arranged on the connecting geometry or connected to the connecting geometry in such a way that the cold water can be supplied to the mixing valve via the second cold water channel, the hot water can be supplied to the mixing valve via the second hot water channel and the mixed water can be led away from the mixing valve via the second mixed water channel.

[0014] The second plastic inner body allows the connection geometry for the mixing valve to be relocated from the main assembly chamber to the at least one secondary assembly chamber, enabling optimized water paths and reducing the installation space required in the main assembly chamber. This allows for greater design freedom for the valve housing, particularly in the area of ​​the main assembly chamber. The valve housing can have a smaller outer diameter, particularly in the area of ​​the main assembly chamber.

[0015] The first plastic inner body and the second plastic inner body can be connected to each other via a plug connection.

[0016] The plug connection can be formed within the main assembly space.

[0017] The first plastic inner body can have a first coupling geometry for the second plastic inner body, wherein the first coupling geometry does not extend over an outer circumferential surface of the first plastic inner body. The first coupling geometry can be arranged in a recess in the circumferential surface. The second plastic inner body can in particular be plugged, inserted, plugged and / or inserted onto the first coupling geometry of the first plastic inner body. In particular, the first coupling geometry does not extend over the outer circumferential surface of the first plastic inner body in a direction orthogonal to the first insert longitudinal axis. This makes it possible to prevent the first coupling geometry from preventing the first plastic inner body from being inserted via the first assembly opening.

[0018] The first plastic inner body can be inserted into the main assembly space via a first assembly opening of the main assembly space.

[0019] The second plastic inner body can be connected via a second mounting opening of the at least one

[0020] The first plastic inner body can be inserted into the main assembly space of the secondary assembly space. The first plastic inner body can have a (first) liquid supply channel for supplying a liquid to a shut-off valve and a (first) liquid discharge channel for supplying the liquid from the shut-off valve to the at least one outlet opening. The liquid can be, for example, carbonated liquid, flavored liquid, filtered liquid, chilled liquid, and / or hot water. The shut-off valve can, in particular, control the supply or discharge of the liquid via the at least one outlet opening.

[0021] The first plastic inner body can have a second coupling geometry. The shut-off valve and / or a third plastic inner body, in particular, can be connected or is connected to the first plastic inner body via the second coupling geometry.

[0022] The third plastic inner body can have a (second) liquid supply channel for supplying the liquid to the shut-off valve and a (second) liquid outlet channel for supplying the liquid from the shut-off valve to the at least one outlet opening. The third plastic inner body consists at least partially of plastic and / or is designed as a plastic injection-molded part. The third plastic inner body can be formed integrally with the (second) liquid supply channel and the (second) liquid outlet channel. The third plastic inner body can be at least partially cylindrical and / or have a thread. The third plastic inner body can extend along a, in particular straight, third insert longitudinal axis.The third plastic inner body can have (in particular parallel to the third insert longitudinal axis) a third insert length of, for example, 10 mm to 50 mm and / or (in particular orthogonal to the third insert longitudinal axis) a third insert diameter of, for example, 20 mm to 60 mm. The third insert diameter of the third plastic inner body can (substantially) correspond to the secondary assembly space diameter of the at least one secondary assembly space. The third plastic inner body is arranged in the at least one secondary assembly space. The third plastic inner body is designed such that it can be arranged in the at least one secondary assembly space or inserted into the at least one secondary assembly space through a third assembly opening. The third plastic inner body can be fastened in the at least one secondary assembly space.The third plastic inner body is arranged in the at least one secondary assembly space such that the third plastic inner body extends from the at least one secondary assembly space into the main assembly space, so that the (first) liquid supply channel of the first plastic inner body is connected (in a liquid-conducting manner) to the (second) liquid supply channel of the third plastic inner body, and the (first) liquid drainage channel of the first plastic inner body is connected (in a liquid-conducting manner) to the (second) liquid drainage channel of the third plastic inner body. In particular, a first longitudinal end of the third plastic inner body can be arranged in the main assembly space, and a second longitudinal end of the third plastic inner body can be arranged in the at least one secondary assembly space. The third plastic inner body, in particular, has a connection geometry for the shut-off valve.The connecting geometry can, for example, be formed on the second longitudinal end of the third plastic inner body. The shut-off valve is, in particular, arranged on the connecting geometry or connected to the connecting geometry in such a way that the liquid can be supplied to the shut-off valve via the (second) liquid supply channel of the third plastic inner body and the liquid can be discharged from the shut-off valve via the (second) liquid discharge channel of the third plastic inner body.

[0023] The second coupling geometry can be designed such that the second coupling geometry does not extend over the outer circumferential surface of the first plastic inner body. The second coupling geometry can be arranged in a recess in the circumferential surface. The third plastic inner body can in particular be plugged, inserted, plugged, and / or inserted onto the second coupling geometry of the first plastic inner body. In particular, the second coupling geometry does not extend over the outer circumferential surface of the first plastic inner body in a direction orthogonal to the first insert longitudinal axis. This prevents the second coupling geometry from preventing the first plastic inner body from being inserted via the first assembly opening.

[0024] The third plastic inner body allows the connection geometry for the shut-off valve to be relocated from the main assembly chamber to at least one secondary assembly chamber, enabling optimized water paths and reducing installation space requirements in the main assembly chamber. This allows for greater design freedom for the valve housing, particularly in the area of ​​the main assembly chamber. The valve housing can have a smaller outer diameter, particularly in the area of ​​the main assembly chamber.

[0025] The first plastic inner body can have a hose feedthrough. The hose feedthrough can extend at least partially parallel to the first insert longitudinal axis. The hose feedthrough can extend from the underside to the top of the first plastic inner body. The hose feedthrough can be designed in the manner of a bore. The first plastic inner body can be tubular in shape through the hose feedthrough. A mixed water line for the mixed water and / or a liquid connection line for the liquid can run through the hose guide. The mixed water line can connect the first mixed water channel of the first plastic inner body and / or the liquid connection line can connect the (first) liquid drain channel of the first plastic inner body to the at least one outlet opening.The mixed water line and / or the fluid connection line can be designed as a (flexible) hose line. The mixed water line and the fluid connection line can (together) be designed at least partially as a multi-lumen hose.

[0026] According to a further aspect, a method for assembling a sanitary fitting is also provided, comprising at least the following steps: a) providing a fitting housing with an outlet and at least one outlet opening, wherein the fitting housing comprises a main assembly space and at least one secondary assembly space; b) arranging a first plastic inner body with a first cold water channel for cold water, a first hot water channel for hot water, and a first mixed water channel for mixed water in the main assembly space;c) arranging a second plastic inner body with a second cold water channel for the cold water, a second warm water channel for the warm water, and a second mixed water channel for the mixed water, such that the second plastic inner body extends from the at least one secondary assembly space into the main assembly space and the first cold water channel is connected to the second cold water channel, the first warm water channel is connected to the second warm water channel, and the first mixed water channel is connected to the second mixed water channel; and d) arranging a mixing valve for mixing the cold water and the warm water to form the mixed water in the at least one secondary assembly space, such that the mixing valve is connected to the second plastic inner body.

[0027] The procedure is specifically designed for installing a sanitary fitting described here. Steps a) to d) can be performed consecutively, but do not have to be.

[0028] For further details on the procedure, please refer in full to the description of the sanitary fitting.

[0029] The invention and the technical environment are explained in more detail below with reference to the figures. It should be noted that the figures show a particularly preferred embodiment of the invention, but are not limited thereto. Identical components in the figures are provided with the same reference numerals. They show, by way of example and schematically: Fig. 1: a sanitary fitting in a perspective view;

[0030] Fig. 2: a first plastic inner body with a mixing valve of the sanitary fitting in a perspective view;

[0031] Fig. 3: the first plastic inner body in a perspective partial view;

[0032] Fig. 4: the first plastic inner body with a second plastic inner body in the perspective partial view; and

[0033] Fig. 5: the first plastic inner body in a top view.

[0034] Fig. 1 shows a sanitary fitting 1 in a perspective view. The sanitary fitting 1 has a fitting housing 2 with an outlet 3, which is attached to the fitting housing 2 so as to be rotatable about a rotation axis 28 (relative to the fitting housing 2). A main assembly space 5, a first secondary assembly space 6 and a second secondary assembly space 7 are formed in the fitting housing 2. The first main assembly space 5 extends from a first assembly opening 22 on a housing underside 32 of the fitting housing 2 along a first longitudinal axis 29 in a cylindrical shape into the fitting housing 2. The fitting housing 2 can be fastened with its housing underside 32 to a support (not shown here). The first longitudinal axis 29 runs coaxially to the rotation axis 28. The fitting housing 2 is (essentially) cylindrical in the region of the main assembly space 5.The first secondary assembly space 6 extends from a second assembly opening 23 of the valve housing 2 along a second longitudinal axis 30 in a cylindrical shape to the main assembly space 5. The second longitudinal axis 30 runs orthogonally to the first longitudinal axis 29. The valve housing 2 is (essentially) cylindrical in the region of the first secondary assembly space 6. The second secondary assembly space 7 extends from a third assembly opening 33 of the valve housing 2 along a third longitudinal axis 31 in a cylindrical shape to the main assembly space 5. The third longitudinal axis 31 runs orthogonally to the first longitudinal axis.

[0035] 29 and coaxial to the second longitudinal axis 30. The valve housing 2 is (essentially) cylindrical in the region of the second auxiliary assembly space 7.

[0036] Fig. 2 shows a perspective view of a first plastic inner body 9 of the sanitary fitting 1. The first plastic inner body 9 extends from a bottom side 37 to a top side 38 along a first insert longitudinal axis 34. The first plastic inner body 9 has a lateral surface 21 and is (essentially) cylindrical. The first plastic inner body 9 has a first coupling geometry 19, shown in Figs. 3 and 5, to which a second plastic inner body 10 is connected via a first plug connection 17 in Fig. 2.

[0037] The second plastic inner body 10 extends from a first longitudinal end 39 to a second longitudinal end 40 along a second insert longitudinal axis 35. The second plastic inner body 10 is connected (directly) to the first plastic inner body 9 at its first longitudinal end 39. The second plastic inner body 10 is (essentially) designed in the manner of a (circular) disc. The second plastic inner body 10 has a connecting geometry 41 at the second longitudinal end 40, as can be seen in Fig. 4, via which a mixing valve 8 is connected to the second plastic inner body 10. Cold water and hot water can be mixed to form mixed water with a desired mixed water temperature using the mixing valve 8. The mixed water can be discharged via an outlet opening 4 of the outlet 3, shown in Fig. 1. The sanitary fitting 1 has a in Fig.1, for actuating the mixing valve 8, which is designed in the manner of an actuating lever. With the first actuating device 42, the mixed water temperature can be adjusted and the discharge of the mixed water via the outlet opening 4 can be controlled. The first plastic inner body 9 has a second coupling geometry 20, which can be seen in FIG. 5 and is formed on a side of the first plastic inner body 9 opposite the first coupling geometry 19. A third plastic inner body 44 is connected to the first plastic inner body 9 via a second plug connection 18 in FIG. 2 via the second coupling geometry 20. The third plastic inner body 44 extends along a third insert longitudinal axis 36. The third insert longitudinal axis 36 runs orthogonal to the first insert longitudinal axis 34 and coaxial with the second insert longitudinal axis 35.A shut-off valve (not shown here) can be mounted on the third plastic inner body 44 and can be actuated via a second actuating device 43 shown in Fig. 1. The second actuating device 43 is designed as a rotary handle and is rotatable about the third insert longitudinal axis 36.

[0038] Fig. 3 shows the first plastic inner body 9 in a perspective partial view with a view of the first coupling geometry 19. The first coupling geometry 19 comprises a cold water connection 45 for a first cold water channel 11 of the first plastic inner body 9, a hot water connection 46 for a first hot water channel 13 of the first plastic inner body 9, and a mixed water connection 47 for a first mixed water channel 15 of the first plastic inner body 9. The cold water connection 45, the hot water connection 46, and the mixed water connection 47 are each designed as nipples and each have a sealing ring. The first cold water channel 11, the first hot water channel 13, and the first mixed water channel 15 extend from the underside 37 of the first plastic inner body 9 shown in Fig. 2 through the first plastic inner body 9 to the first coupling geometry 19.The first cold water channel 11, the first hot water channel 13 and the first mixed water channel 15 open in the area of ​​the first coupling geometry 19 orthogonal to the first insert longitudinal axis 34. Fig. 4 shows the first plastic inner body 9 in a perspective partial view after the second plastic inner body 10 has been fastened to the first coupling geometry 19 of the first plastic inner body 9 shown in Fig. 3 using the first plug connection 17, so that the first cold water channel 11 shown in Fig. 3 is connected to a second cold water channel 12 of the second plastic inner body 10, the first hot water channel 13 shown in Fig. 3 is connected to a second hot water channel 14 of the second plastic inner body 10 and the first mixed water channel 15 shown in Fig. 3 is connected to a second mixed water channel 16 of the second plastic inner body 10 (liquid-conducting). are connected. The one shown in Fig.The mixing valve 8 shown in Fig. 2 can be connected to the connection geometry 41 of the second plastic inner body 10 in such a way that the cold water can be supplied to the mixing valve 8 via the first cold water channel 11 and second cold water channel 12 and the hot water can be supplied via the first hot water channel 13 and the second hot water channel 14. The cold water can be supplied to the first plastic inner body 9 via a cold water supply line (not shown here), and the hot water can be supplied to the first plastic inner body 9 via a hot water supply line (likewise not shown here). The cold water supply line can be connected to the first cold water channel 11 on the underside 37 of the first plastic inner body 9 shown in Fig. 2, and the hot water supply line can be connected to the first hot water channel 13 on the underside 37 of the first plastic inner body 9. The mixed water can be led away from the mixing valve 8 via the second mixed water channel 16 and the first mixed water channel 15.The first mixed water channel 15 can be connected on the underside 37 of the first plastic inner body 9 to a mixed water line not shown here, which can lead through a hose passage 27 of the first plastic inner body 9 to the outlet opening 4 of the outlet 3 shown in Fig. 1.

[0039] Fig. 5 shows the first plastic inner body 9 in a plan view looking at the top

[0040] 38. The first coupling geometry 19, or the cold water connection 45, the hot water connection 46, and the mixed water connection 47, are designed such that they do not protrude beyond the outer surface 21 of the first plastic inner body 9 in a radial outward direction. The second coupling geometry 20 has a first fluid connection 26 for a fluid supply channel 24 of the first plastic inner body 9 and a second fluid connection 48 for a fluid outlet channel 25 of the first plastic inner body 9. The fluid supply channel 24 and the fluid outlet channel 25 are each designed as nipples and each have a sealing ring. The fluid supply channel 24 and the fluid outlet channel 25 extend from the underside 37 of the first plastic inner body 9, shown in Fig. 2, through the first plastic inner body 9 to the second coupling geometry 20.The liquid supply channel 24 and the liquid drain channel 25 open in the region of the second coupling geometry 20 orthogonal to the first insert longitudinal axis 34. A liquid can be supplied to the shut-off valve (not shown here) via the liquid supply channel 24. The liquid can be led away from the shut-off valve via the liquid drain channel 25. The liquid supply channel 24 can be connected to a liquid supply line and / or to a liquid source on the underside 37 of the first plastic inner body 7 shown in Fig. 2. The liquid drain channel 25 can be connected to a liquid connecting line (not shown here) on the underside 37 of the first plastic inner body 9, which can lead through the hose feedthrough 27 of the first plastic inner body 9 to the outlet opening 4 of the outlet 3 shown in Fig. 1.The mixed water line and the fluid connection line can be designed at least partially (especially together) as a multi-lumen hose. The hose passage 27 extends parallel to the first insert longitudinal axis 34 completely through the first plastic inner body 9.

[0041] The second coupling geometry 20 or the first fluid connection 26 and the second fluid connection 48 are designed such that they do not protrude beyond the outer surface 21 of the first plastic inner body 9 in the radial outward direction. When assembling the sanitary fitting 1 shown in Fig. 1, the fitting housing 2 is first prepared in a step a). Then, in a step b), the first plastic inner body 9 is inserted into the main assembly space 5 of the fitting housing 2 via the first assembly opening 22. In a step c), the second plastic inner body 10 is inserted into the main assembly space 5 via the second assembly opening 23, so that the second plastic inner body 10 is connected to the first coupling geometry 19 of the first plastic inner body 9.In a step d), the mixing valve 8 is arranged via the second assembly opening 23 in the first auxiliary assembly space 6, so that the mixing valve 8 is connected to the second plastic inner body 10 via the connecting geometry 41 of the second plastic inner body 10. In a step e), the third plastic inner body 44 can be inserted via the third assembly opening 33 into the assembly space 5, so that the third plastic inner body 44 is connected to the second coupling geometry 20 of the first plastic inner body 9. In a step f), the shut-off valve (not shown here) can be arranged via the third assembly opening 33 in the second auxiliary assembly space 7, so that the shut-off valve is fastened to the third plastic inner body 44.

[0042] The present invention enables greater design freedom of the valve housing 2.

[0043] List of reference symbols

[0044] 1 sanitary fitting

[0045] 2 valve bodies

[0046] 3 Outlet

[0047] 4 Outlet opening

[0048] 5 Main assembly room

[0049] 6 first auxiliary assembly room

[0050] 7 second auxiliary assembly room

[0051] 8 Mixing valve

[0052] 9 first plastic inner body

[0053] 10 second plastic inner body

[0054] 11 first cold water canal

[0055] 12 second cold water channel

[0056] 13 first warm water channel

[0057] 14 second hot water channel

[0058] 15 first combined sewer

[0059] 16 second combined sewer

[0060] 17 first connector

[0061] 18 second connector

[0062] 19 first clutch geometry

[0063] 20 second clutch geometry

[0064] 21 Shell surface

[0065] 22 first mounting opening

[0066] 23 second mounting opening

[0067] 24 Liquid supply channel

[0068] 25 Liquid drainage channel

[0069] 26 first fluid connection 27 hose feedthrough

[0070] 28 axis of rotation

[0071] 29 first longitudinal axis

[0072] 30 second longitudinal axis 31 third longitudinal axis

[0073] 32 Bottom of the case

[0074] 33 third mounting opening

[0075] 34 first insert longitudinal axis

[0076] 35 second insert longitudinal axis 36 third insert longitudinal axis

[0077] 37 subpage

[0078] 38 Top

[0079] 39 first longitudinal end

[0080] 40 second longitudinal end 41 connection geometry

[0081] 42 first actuating device

[0082] 43 second actuating device

[0083] 44 third plastic inner body

[0084] 45 Cold water connection 46 Hot water connection

[0085] 47 Mixed water connection

[0086] 48 second fluid connection

Claims

Patent claims 1. Sanitary fitting (1), comprising at least: - a fitting housing (2) with an outlet (3) and at least one outlet opening (4), wherein the fitting housing (2) comprises a main assembly space (5) and at least one secondary assembly space (6, 7); - a mixing valve (8) for mixing cold water and hot water to form mixed water, wherein the mixing valve (8) is arranged at least partially in the at least one secondary assembly space (6, 7); - a first plastic inner body (9) with a first cold water channel (11) for the cold water, a first hot water channel (13) for the hot water and a first mixed water channel (15) for the mixed water, wherein the first plastic inner body (9) is arranged in the main assembly space (5); and - a second plastic inner body (10) with a second cold water channel (12) for the cold water, a second hot water channel (14) for the hot water and a second mixed water channel (16) for the mixed water, wherein the second plastic inner body (10) extends from the at least one secondary assembly space (6, 7) into the main assembly space (5), so that the first cold water channel (11) is connected to the second cold water channel (12), the first hot water channel (13) is connected to the second hot water channel (14) and the first mixed water channel (15) is connected to the second mixed water channel (16).

2. Sanitary fitting (1) according to claim 1, wherein the first plastic inner body (9) and the second plastic inner body (10) are connected to one another via a plug connection (17).

3. Sanitary fitting (1) according to claim 2, wherein the plug connection (17) is formed within the main assembly space (5).

4. Sanitary fitting (1) according to one of the preceding claims, wherein the first plastic inner body (9) has a first coupling geometry (19) for the second plastic inner body, wherein the first coupling geometry (19) does not extend over an outer surface (21) of the first plastic inner body (9).

5. Sanitary fitting (1) according to one of the preceding claims, wherein the first plastic inner body (9) is inserted into the main assembly space (5) via a first assembly opening (22) of the main assembly space (5).

6. Sanitary fitting (1) according to one of the preceding claims, wherein the second plastic inner body (10) is inserted into the main assembly space (5) via a second assembly opening (23) of the at least one secondary assembly space (6, 7).

7. Sanitary fitting (1) according to one of the preceding claims, wherein the first plastic inner body (9) has a liquid supply channel (24) for supplying a liquid to a shut-off valve and a liquid outlet channel (25) for supplying the liquid from the shut-off valve to the at least one outlet opening (4).

8. Sanitary fitting (1) according to one of the preceding claims, wherein the first plastic inner body (9) has a second coupling geometry (20).

9. Sanitary fitting (1) according to one of the preceding claims, wherein the first plastic inner body (9) has a hose passage (27).

10. A method for assembling a sanitary fitting (1), comprising at least the following steps: a) providing a fitting housing (2) with an outlet (3) and at least one outlet opening (4), wherein the fitting housing (2) comprises a main assembly space (5) and at least one secondary assembly space (6, 7); b) arranging a first plastic inner body (9) with a first cold water channel (11) for cold water, a first hot water channel (13) for hot water, and a first mixed water channel (15) for mixed water in the main assembly space (5);c) arranging a second plastic inner body (10) with a second cold water channel (12) for the cold water, a second warm water channel (14) for the warm water, and a second mixed water channel (16) for the mixed water, such that the second plastic inner body (10) extends from the at least one secondary assembly space (6, 7) into the main assembly space (5), and the first cold water channel (11) is connected to the second cold water channel (12), the first warm water channel (13) is connected to the second warm water channel (14), and the first mixed water channel (15) is connected to the second mixed water channel (16); and d) arranging a mixing valve (8) for mixing the cold water and the warm water to form the mixed water in the at least one secondary assembly space (6, 7), such that the mixing valve (8) is connected to the second plastic inner body (10);

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