EP3105381B1 - Fitting having a pivoting outlet - Google Patents

Description

The invention relates to a valve with a swivel spout according to the preamble of claim 1. Such a valve is in the document EP1686218A1 described.

In the case of a fitting with a swivel spout, the outer fitting housing can be pivot-mounted on a radially inner, swivel-proof housing insert. Among other things, a single-lever mixing cartridge is integrated in the housing insert, with the actuating lever of which the temperature and / or amount of outflowing mixed water can be adjusted.

From the DE 10 2007 009 409 A1 a generic fitting with swivel spout is known. An adapter is integrated in the housing insert for easy assembly of the cold and hot water pipes to the mixing cartridge. The cold and hot water pipes are connected to the input side of the adapter. On the output side of the adapter is in connection with the mixing cartridge. In addition, the adapter has a flow passage, which connects the mixing cartridge in terms of flow technology to a mixed water line leading to the water outlet.

In the DE 10 2007 009 409 B4 the mixed water flow passage in the adapter is an annular space running around the housing axis with a flow cross-section open to the outside, which is fluidically connected to a mixed water line leading to the water outlet. The cold and hot water channels of the adapter extend in the axial direction through the mixed water annulus. This means that the cold and hot water channels on the adapter side are flushed with the outflowing mixed water. In the case of such a mixed water flow through the adapter, the annular space is to be sealed in the axial direction at the top and bottom with an annular seal in each case against the inner wall of the fitting housing. The two ring seals are positioned all around between the adapter outer circumference and the inner circumference of the valve body and are therefore designed with a correspondingly large sealing diameter. This results in comparatively large friction values between the rotating valve body and the pivot-resistant housing insert when pivoting, which may limit the ease of use. In addition, the volatile seal can only be carried out with increased assembly costs and material.

With the from the DE 10 2007 009 409 B4 known fitting, the mixed water pipe is formed directly by the inner wall of the swivel spout. As a result, the water is always in contact with the brass housing. The valve body is cast together with the swivel spout in common, cost-intensive practice from brass or soldered together from two brass parts.

From the publication DE29707764U1 is known a faucet, in particular a single-lever mixer, with a hood, a handle lever which is seated on the hood and rotatably mounted, and a water outlet and a mixer cartridge arranged in the hood, the mixer cartridge and the water outlet being connected via a single, integrally formed connecting element (3 0) are interconnected.

The object of the invention is to provide an inexpensive sanitary fitting in which the water path is separated from the metal of the fitting housing, as a result of which a less expensive zinc die casting can be used instead of brass. In addition, another object is to simplify the assembly and manufacture of the valve body, specifically using an inexpensive one Zinc injection molding process. In addition, a fitting with a swivel spout is to be provided, in which the effort for sealing is reduced in a simple manner.

The object is solved by the features of claim 1. Preferred developments of the invention are disclosed in the subclaims.
According to claim 1, the mixed water line adjoining the adapter-side mixed water flow passage in the flow direction is formed by a deflection insert and the water hose connected to it. In addition, the fitting has at least one pivot bearing point at which the deflection insert is pivotably mounted, in particular coaxially to the housing axis. According to the invention, a plastic guide is used to facilitate assembly for pre-centering the water hose before its liquid-tight insertion into an outlet-side channel section of the deflecting insert at a passage between the fitting housing and the swivel spout. Thanks to the swivel bearing, the deflection insert of the mixed water line can easily follow swivel operations of the valve body without being exposed to excessive mechanical permanent loads. The service life of the valve is thus considerably increased.

On the other hand, such mechanical permanent loads would result in a mixed water pipe which, in contrast to the invention, is connected to the adapter in a rotationally fixed manner.
In the present application, the housing axis is understood to be a pivot axis about which the valve housing can be rotated when the user actuates the pivot. As an alternative or in addition, the housing axis is to be understood as a surface normal that passes through the valve through the center of gravity of a cross-sectional surface. In the case of a hollow cylindrical fitting housing, its central axis forms the housing axis.

One of the pivot bearing points of the deflection insert can preferably be formed directly on the pivot-fixed adapter. Another bearing point, however, can be formed on a separate housing insert from the adapter.

The deflection insert can be coupled in a liquid-tight manner to the adapter outlet opening with an inlet-side channel section and has an outlet-side channel section to which the water hose is connected. With regard to a simple geometry, the inlet-side channel section of the deflection insert can also form the above-mentioned adapter-side pivot bearing point in a dual function. For this purpose, the inlet-side channel section is preferably coaxial to the housing axis in a liquid-tight plug connection with the mixed water socket of the adapter, the plug connection being designed to enable the pivoting movement of the deflection insert.

To form a further bearing point, the deflection insert can have a bearing contour on its side axially opposite the inlet-side channel section, that is to say, for example, a bearing journal. This can be pivotally mounted with play in a corresponding counter-contour of a housing insert.

In general, the deflection insert can be pivot-mounted axially parallel or coaxially to the housing axis: An axis-parallel, i.e. eccentric, pivot bearing of the deflection insert with reference to the housing axis leads to compensating movements between the deflection insert and the fitting housing in the radial direction when the valve is actuated. This causes mechanical stress on the deflection insert. Against this background, a coaxial, that is to say central, mounting of the deflection insert is preferred, as a result of which such compensating movements are eliminated. Preferably, the mixed water flow passage on the adapter side can no longer be designed as an annular space which is open radially outwards and which has only a high volume assembly costs can be sealed, but rather as a mixed water channel that has an outlet opening that is open in the axial direction. In this way, the downstream pivotably mounted line element of the mixed water line can be connected to the mixed water outlet opening of the adapter with a sealing diameter that is significantly smaller than in the prior art.

In a technical implementation, the adapter can have a mixed water connection which delimits the outlet opening which is open in the axial direction. Furthermore, the adapter can have a cold water channel and a hot water channel, which the cold and Connect hot water pipes to the valve element. The cold and hot water channels of the adapter can be limited by cold and hot water connections.

In the prior art, hot water and cold water channels of the adapter are washed around by the outflowing mixed water. Such a mixed water rinsing does not apply to the adapter geometry described above. In contrast to the prior art, the cold and hot water nozzles can be arranged here parallel to the axis of the mixed water nozzle. With regard to a compact design, the hot and cold water nozzles can preferably be arranged eccentrically to the housing axis, while the mixed water nozzles are arranged centrally to the housing axis. The warm, cold and mixed water nozzles protruding from a base body of the adapter are preferably arranged in a space-saving manner on an end face of the adapter facing the cold and hot water pipes.

A water hose can connect to the deflection insert in the direction of flow. The water hose can be routed continuously from the deflection insert to the jet generator of the water outlet on the outlet side. In this way, the mixed water flowing out of the mixing cartridge can be guided to the water outlet opening without contact with respect to an inner wall of the fitting housing. By using such a mixed water pipe, the use of brass as a material for the valve body is no longer necessary, but the use of a less expensive zinc valve body is possible.

The line element according to the invention can also have a driver, by means of which the line element can be coupled in motion with the fitting housing in the pivoting direction. In this way, a permanently reliable flow connection between the adapter and the mixed water line is provided. In addition, the line element (i.e. the deflection insert) of the mixed water line is not subject to mechanical loads due to the pivoting operations of the valve body exposed. The driver thus decouples the water line connected to the deflection insert from all movement forces or moments caused by the rotation of the valve body.

In a preferred technical embodiment, the adapter can be arranged together with the mixing cartridge in a housing insert. In the installed position, this is swivel-proof mounted inside the valve body. The housing insert can be designed as a hollow cylinder, the hollow profile of which delimits an insert base on the base side and has an upwardly open end face through which the deflection insert, the adapter and the valve member can be inserted during assembly. The housing insert thus forms a stable support base for the valve member, the adapter and the deflection insert. In addition, the insert bottom of the housing insert can have connection connections for the line connection between the inlet connection piece of the adapter and the hot and cold water lines. Furthermore, the countercontour interacting with the bearing contour (for example a bearing journal) of the deflection insert can be formed in the insert bottom of the housing insert in the insert bottom of the housing insert.

The housing insert can be provided with swivel stops which limit a swiveling movement of the valve housing around the housing axis. For this purpose, the housing insert can have a radially outer circumferential groove in which a stop screw of the valve housing projects radially inwards.

The advantageous embodiments and / or further developments of the invention explained above and / or reproduced in the subclaims can - apart from, for example, in the case of clear dependencies or incompatible alternatives - be used individually or in any combination with one another.

The invention and its advantageous training and further developments and their advantages are explained in more detail below with reference to drawings.

Fig. 1

in einer Schnittdarstellung eine Armatur mit Schwenkauslauf;

Fig. 2

eine vergrößerte Schnittdarstellung der Einzelheit X aus der Fig. 1;

Fig. 3

in einer perspektivischen Ansicht die Armatur mit weggelassenem Armaturengehäuse;

Fig. 4 und 5

jeweils Schnittdarstellungen entlang der Schnittebenen I-I und II-II aus der Fig. 1;

Fig. 6 und 7

jeweils verschiedene Ansichten des Umlenkeinsatzes in Alleinstellung; sowie

Fig. 8

in einer Schnittdarstellung den Adapter in Alleinstellung.

Show it:

Fig. 1

in a sectional view a fitting with swivel spout;

Fig. 2

an enlarged sectional view of the detail X from the Fig. 1 ;

Fig. 3

in a perspective view the valve with the valve body omitted;

4 and 5

each sectional views along the sectional planes II and II-II from the Fig. 1 ;

6 and 7

different views of the deflection insert in isolation; such as

Fig. 8

in a sectional view the adapter in isolation.

In the Fig. 1 a sanitary fitting with a fitting housing 1 and a water outlet 3 formed thereon. The fitting housing 1 is a hollow profile part, for example made of zinc, with a cylindrical, upwardly open installation space which is delimited on the bottom side by a base plate 5. A hollow cylindrical housing insert 7 is inserted in the assembly space, in the hollow profile of which a single-lever mixing cartridge 9 and an adapter 11 are arranged. The hollow cylindrical assembly space of the valve body 1 is through a passage 13 ( Fig. 2 ) in connection with the water outlet 3. The mixing cartridge 9 is fluidly coupled with the interposition of the adapter 11 with a hot water line 15, a cold water line 17 and a mixed water line 19 leading to the water outlet 3 of the sanitary fitting.

The mounting space of the fitting housing 1, which is open at the top, is in the Fig. 1 closed by a cap 21 through which a lever 23 of the mixing cartridge 9 projects upwards. The unit consisting of the housing insert 7, the mixing cartridge 9 and the adapter 11 is in the Fig. 1 clamped against the bottom mounting plate 5 of the valve housing 1 by means of a central screw element 25 arranged on the top of the valve housing 1. By rotating and / or tilting movements of the lever 23, the temperature and / or quantity of the mixed water flowing out of the water outlet 3 is adjusted in a manner known per se.

The inner housing insert 7 is an indicated tension screw 27 ( Fig. 1 or 2nd ) with only in the Fig. 1 indicated kitchen worktop 10 swivel-proof braced. In contrast, the hollow cylindrical fitting housing 1 is pivotally mounted on the outer circumference of the housing insert 7 about a housing axis A, with the interposition of bearing points 29 ( Fig. 2 ).

As from the Fig. 1 or 2nd emerges, the hollow profile of the housing insert 7 is delimited on the base side by an insert base 31. This has connection connections, not shown, into which connection pieces of the hot and cold water pipes 15, 17 inserted from below are inserted in a liquid-tight manner and by means of an insert part 37 ( Fig. 1 or 2nd ) are held captive. On the axially opposite side, warm and cold water sockets 39, 41 of the adapter 11 protrude into the connection connections of the insert base 31 in a liquid-tight manner. The hot and cold water sockets 39, 41 of the adapter 11 are in turn coupled to the mixing cartridge 9 at their top-side outlets and each delimit a hot water channel 48 and a cold water channel 44.

As from the Fig. 8 further emerges, the adapter 11 has a mixed water channel 45. Starting from the mixing cartridge 9, this is guided downwards along the housing axis A, the outlet opening 46 ( Fig. 8 ) limited by a mixed water nozzle 47 is. According to the Fig. 4 the mixed water spout 47 and the hot and cold water spouts 39, 41 are aligned axially parallel with respect to the housing axis A. In addition, the mixed water connector 47 is arranged coaxially to the housing axis A, while the two hot and cold water connectors 39, 41 are arranged eccentrically to it.

As from the Fig. 8 further emerges, the adapter 11 has a stop contour 49. In the assembled position, this is in contact with corresponding rotary stops 51 ( Fig. 4 ), which are incorporated radially on the inside in the housing insert 7. In addition, the adapter 7 according to the Fig. 8 upwardly open mold pockets 53, into which corresponding projections (not shown) of the mixing cartridge 9 project in a form-fitting manner. Both the stop contour 49 and the shaped pockets 53 of the adapter 11 form a torque support, with which actuation forces are guided from the lever 23 via the mixing cartridge 9 to the fitting housing 1 and the technology provided in the fitting housing 1 is thus kept essentially free of forces.

The mixed water line 19 is connected in a technically simple manner to the centrally arranged mixed water nozzle 47, the sealing zone formed between the mixed water line 19 and the mixed water nozzle 47 having a sealing diameter which is substantially smaller than in the prior art and is therefore significantly cheaper in view of the required sealing effort . The sealing diameter is according to the Fig. 1 essentially identical to the inside diameter of the mixed water nozzle 47.

As from the Fig. 1 further emerges, the mixed water line 19 leading to the water outlet opening 18 is constructed in several parts, specifically with a deflection insert 55 and a flexible water hose 57 connected to it Fig. 6 and 7 an inlet-side flow channel 59 and an outlet-side flow channel 61, which are arranged approximately in a V-shape with respect to one another and on a lower fork 63 ( Fig. 7 ) converge. The deflection insert 55 is in the Fig. 2 on an upper bearing 65 and a lower bearing 67 coaxially mounted to the housing axis A. The upper bearing point 65 is embodied by a plug-in connection in which the inlet-side channel section 59 is inserted into the mixed water nozzle 47 of the adapter 11, specifically in a liquid-tight and pivotable manner. In contrast, the lower bearing point 67 is realized by a guide pin 74 formed on the deflection insert 55, which is inserted into a corresponding recess 69 in the insert base 31 of the housing insert 7.

On the outlet-side channel section 61 of the deflection insert 55, according to FIG Fig. 1 or 2nd the water hose 57 is inserted, which the mixed water up to the water outlet opening 18 ( Fig. 1 ) leads. In order that the water hose 57 is decoupled from all forces and moments that are caused by the pivoting movement, the deflection insert 55 additionally has a driver 71. The driver 71 protrudes according to the Fig. 4 in a housing groove 73, which is formed on the inside of the valve body 1.

To limit the pivoting movement, a circumferential groove 75 ( Fig. 2 ) intended. In the circumferential groove 75, a stop screw 77 protrudes in the transverse direction and is held on the valve housing 1.

When assembling the valve, a preassembly unit can first be provided, in which the deflection insert 55 with its lower guide pin 74 is first inserted into the recess 69 of the insert base 31 of the housing insert 7 in a process sequence. Then the adapter 7 with its mixed water nozzle 47 is placed in a liquid-tight manner on the upwardly projecting inlet-side channel section 59 of the deflection insert 55, specifically with the adapter 11 supported on a radially inner annular shoulder 79 ( Fig. 1 ) and with a free movement play between the lower end faces of the hot and cold water sockets 39, 41 of the adapter 11 in the connection connections, not shown, of the insert base 31 of the housing insert 7. Subsequently, the mixing cartridge 9 is inserted into the housing insert 7.

The pre-assembly unit thus formed is inserted into the assembly space of the valve housing 1, which is open at the top, and is inserted therein by means of the central clamping element 25 ( Fig. 1 ) screwed. The water hose 57 is then introduced into the outlet-side channel section 61 via the water outlet opening 18.

To facilitate this insertion process, the Fig. 1 or 2nd at the passage 13 between the valve body 1 and the swivel spout 3 a plastic guide 81 ( Fig. 2 ) used. With the aid of the plastic guide 81, the water hose 57 is pre-centered during the insertion process before it is inserted into the outlet-side channel section 61 of the deflection insert 55 in a liquid-tight manner.

In the exemplary embodiment shown in the figures, the hot and cold water connections 39, 41 (integrated in the adapter 11) 4 and 5 ) when the valve is swivel actuated, while the deflection insert 55 with the mixed water channel sections 59, 61 integrated therein follows the swivel movement of the valve housing 1. The hot and cold water sockets 39, 41 of the adapter 11 can thus optionally act as limit stops which limit a pivoting angle of the deflection insert 55 and thus of the valve body 1.

In order to avoid such a swivel angle limitation, not only the mixed water channel sections 59, 61 can be integrated in the deflection insert 55 in a further embodiment, not shown, but also cold and hot water channels. In this case, the cold and hot water pipes 15, 17 would no longer be coupled to the swiveling cold and hot water sockets 39, 41 of the adapter 11, but rather to the cold and hot water channels in the pivotable deflection insert 55. The cold and hot water sockets 39, 41 of the adapter 11 could therefore be omitted, so that the above-mentioned pivot angle limitation is also avoided. <u> List of reference symbols </u> 1 Valve body 48 Hot water channel 3rd Swivel spout 49 Stroke contour 5 Mounting plate 51 Rotary stops 7 Housing insert 53 Shaped pockets 9 Mixing cartridge 55 Deflection insert 10th Countertop 57 Water hose 11 adapter 59 inlet-side duct section 13 passage 61 outlet-side duct section 15 Hot water pipe 63 Bifurcation 17th Cold water pipe 65 upper bearing 18th Water outlet opening 67 lower bearing 19th Mixed water pipe 69 deepening 21 cap 71 Carrier 23 lever 73 Housing groove 25th Clamping element 74 Bearing journal 27 Clamping screw 75 Circumferential groove 29 Bearings 77 Stop screw 31 Insert floor 79 Ring shoulder 33 Connection connections 81 Plastic guide 35 Fittings A Housing axis 37 Insert part 39 Hot water nozzle 41 Cold water nozzle 44 Cold water channel 45 Mixed water channel 47 Mixed water nozzle

Claims (14)

1. A sanitary fitting with a pivotable spout, with a fitting housing (1) mounted pivotably about a housing axis (A), in which a valve member (9), in particular a mixing cartridge, for adjusting the temperature and/or the volume of mixed water is non-pivotably arranged, which valve member (9) is connected to hot and cold water lines (15, 17) on the inlet side and to a mixed water line (19) leading to a water spout (3) on the outlet side, wherein an adapter (11) has at least one flow passage (45), which connects the valve member (9) fluidically to the mixed water line (19), wherein the mixed water line (19), which attaches to the adapter-side mixed water flow passage (45) in the flow direction, is formed by at least one joint insert (55), and wherein the fitting has at least one pivot bearing point (65, 67) at which the joint insert (55) is mounted pivotably, in particular coaxially to the housing axis (A), characterized in that a plastic guide (81) is inserted at a passage (13) between the fitting housing (1) and the pivotable spout (3) for pre-centering a water hose (57) before the latter is sealingly pushed into an outlet-side channel section (61) of the joint insert (55), and that the mixed water line (19) is constructed with multiple parts, specifically with the joint insert (55) and the water hose (57) attached thereto.
2. The fitting according to Claim 1, characterized in that the mixed water line (19, 55, 57) is routed as a separate component inside the fitting housing (1) and/or the water spout (3).
3. The fitting according to Claim 2, characterized in that at least one pivot bearing point (65) is formed on the adapter (11), and/or that a pivot bearing point (67) is formed on a housing insert (7) separate from the adapter (11).
4. The fitting according to Claim 1, 2 or 3, characterized in that the flow passage (45) of the adapter (11) fluidically connecting the valve member (9) to the mixed water line (19) is a mixed water channel, which has an outlet aperture (46) opening in an axial direction.
5. The fitting according to any one of the preceding claims, characterized in that the adapter (11) has a mixed water connector (47), which delimits the outlet aperture (46) opening in an axial direction.
6. The fitting according to any one of the preceding claims, characterized in that for forming the bearing point (65), an inlet-side channel section (59) of the joint insert (55) is sealingly plug-connected with the mixed water outlet aperture (46) of the adapter (11) and that the plug connection is designed so as to enable a pivot movement of the joint insert (55).
7. The fitting according to any one of preceding Claims 3 to 6, insofar as related to Claim 3, characterized in that the joint insert (55) has a bearing contour (74), in particular a bearing pin, for forming the bearing point (67), and that the bearing contour (74) of the joint insert (55) cooperates with a mating contour (69) formed in the adapter (11) or in the housing insert (7).
8. The fitting according to any one of the preceding claims, characterized in that the pivotably mounted joint insert (55) has an entrainment element (71), by means of which the joint insert (55) is coupled to the fitting housing (1) for movement in a pivot direction.
9. The fitting according to any one of the preceding claims, characterized in that the outlet aperture (46) of the adapter-side mixed water flow passage (45) is arranged centrically to the housing axis (A) .
10. The fitting according to any one of the preceding claims, characterized in that the adapter (11) has a cold water channel (44) and a hot water channel (48), which fluidically connect the cold and hot water lines (15, 17) to the valve member (9).
11. The fitting according to Claim 10, characterized in that the cold water channel (44) and the hot water channel (48) of the adapter (11) are delimited by cold and hot water connectors (39, 41), and that in particular the cold and hot water connectors (39, 41) are arranged in an axis-parallel manner with respect to the mixed water connector (47) and/or that the hot and cold water connectors (39, 41) are arranged eccentrically to the housing axis (A).
12. The fitting according to any one of Claims 3 to 11, insofar as related to Claim 3, characterized in that the housing insert (7) arranged non-pivotably in the installation position is configured as a hollow cylinder and that the hollow profile of the housing insert (7) is delimited on the bottom by an insert floor (31), and that the valve member (9) and the adapter (11) are arranged in the hollow profile of the housing insert (7).
13. The fitting according to Claim 12, characterized in that the insert floor (31) of the housing insert (7) has connection terminals for line connection between the adapter-side hot and cold water connectors (39, 41) and the hot and cold water lines (15, 17), and/or that the mating contour (69) cooperating with the bearing contour (74) of the joint insert (55) is formed in the insert floor (31) of the housing insert (7).
14. The fitting according to Claim 12 or 13, characterized in that the housing insert (7) has, in particular on its outer periphery, pivot stops (75), which delimit a pivot movement of the fitting housing (1) about the housing axis (A).

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