WO2021185470A1

WO2021185470A1 - Sanitary fitting comprising at least one supply conduit secured by a base shaft

Info

Publication number: WO2021185470A1
Application number: PCT/EP2020/077087
Authority: WO
Inventors: Thomas Vorel
Original assignee: Grohe Ag
Priority date: 2020-03-17
Filing date: 2020-09-28
Publication date: 2021-09-23
Also published as: DE102020107281A1

Abstract

A sanitary fitting (1), at least comprising: - a fitting housing (2) comprising an outlet (4) that has an outlet opening (3); - an insert (5) provided in the fitting housing (2); - at least one supply conduit (6, 7) for a liquid, which is pushed into the insert (5) so that the liquid can be supplied to a mixer cartridge (8) by means of the insert (5) in order to mix cold water with hot water to form a mixed-water flow; - at least one fastening element (9) which is pushed into the insert (5) via a peripheral surface (10) of the insert (5), so that the at least one supply conduit (6, 7) is secured on the insert (5); and - a base shaft (11) for mounting the fitting housing (2), which shaft is connected to the insert (5) such that the at least one fastening element (9) is prevented from becoming detached from the insert (5).

Description

Sanitary fitting with at least one feed line secured by a base shaft The present invention relates to a sanitary fitting which is used in particular for wash basins, shower and / or bathtubs.

Sanitary fittings are used to mix cold water and hot water to a mixed water with a desired mixed water temperature and the dosage of the mixed mixed water. Such sanitary fittings can have a base shaft via which a fitting housing of the sanitary fittings is rotatably mounted. The base shaft is designed in one piece with an insert which, within the fitting housing, serves to supply the cold water and hot water to a mixing cartridge for mixing the cold water and hot water into the mixed water. For this purpose, supply lines for the cold water and hot water must be attached to the insert. For this purpose, additional components are required, which increase the installation effort of the sanitary fittings. In addition, the one-piece design of the base shaft and the insert restricts the mounting of the base shaft and the insert in the fitting housing. 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 base shaft and insert are easy to assemble and / or in which a reduced number of components is required to secure the feed lines . These tasks are achieved with a sanitary fitting according to the features of the independent claim. Further advantageous refinements of the sanitary fitting are specified in the dependent claims. It should be noted that the features listed individually in the dependent claims formulated in any techno- can be combined with one another in a logically meaningful manner and define further embodiments of the invention. In addition, the features specified in the claims are specified and explained in more detail in the description, with further preferred embodiments of the invention are presented.

A sanitary fitting that has at least the following components contributes to this:

- A fitting housing with an outlet having an outlet opening;

- An insert which is arranged in the fitting housing;

- At least one supply line for a liquid, which is plugged into the insert, so that the liquid by means of the insert of a mixing cartridge for mixing cold water and

Hot water can be fed to a mixed water;

- At least one fastening element which is inserted into the insert over a circumferential surface of the insert, so that the at least one feed line is secured to the insert; and a base shaft for mounting the fitting housing, which is connected to the insert in such a way that the at least one fastening element is prevented from loosening from the insert.

The proposed sanitary fitting is used in particular to mix cold water and hot water to form mixed water with a desired mixed water temperature and / or to meter the mixed mixed water. Such sanitary fittings are regularly used for sinks, sinks, showers and / or bathtubs. The sanitary fitting has a fitting housing with an outlet having an outlet opening, wherein the fitting housing can at least partially consist of brass, a zinc alloy and / or plastic. The fitting housing can be attached to a support, for example a work plate, the sink, the washbasin, the shower or the bathtub. Furthermore, the fitting housing has a (protruding or branching) outlet which is rigidly or movably connected to the fitting housing. The outlet can be be at least partially tubular. Furthermore, the fitting housing can have a decorative outer surface. In addition, the outlet has an outlet opening through which a liquid, in particular (mixed) water, can be dispensed. The sanitary fitting can have a mixing cartridge, by means of which in particular cold water with a cold water temperature and hot water with a warm water temperature can be mixed to form mixed water with a desired mixed water temperature. The cold water temperature is in particular a maximum of 25 ° C (Celsius), preferably 1 ° C to 25 ° C, particularly preferably 5 ° C to 20 ° C and / or the hot water temperature in particular a maximum of 90 ° C, preferably 25 ° C to 90 ° C, particularly preferably 55 ° C to 65 ° C. The mixing cartridge can be actuated by means of a lever of the sanitary fitting. For example, the mixed water temperature and / or a discharge amount of the mixed water can be set by means of the lever. The mixing cartridge can for example be designed in the manner of a single-lever mixer and / or at least partially cylindrical. Furthermore, the mixing cartridge can have a cartridge housing. The mixing cartridge can be at least partially arranged in a cartridge receptacle and / or attached to the cartridge receptacle. The cartridge holder is used to hold and / or fasten the mixer cartridge to the fitting housing. The cartridge receptacle is in particular at least partially tubular, so that the mixing cartridge can be arranged at least partially in the cartridge receptacle. The cartridge receptacle can thus be designed, for example, in the manner of an adapter, by means of which the mixing cartridge is held in the fitting housing. Furthermore, the cartridge receptacle can at least partially consist of brass and / or plastic. The cartridge receptacle can be attached to the fitting housing directly or indirectly, for example through other components of the sanitary fitting.

The sanitary fitting has an insert which is arranged in the fitting housing. In particular, cold water and hot water can be supplied to the mixing cartridge via the insert. For this purpose, the mixing cartridge can be arranged on the insert, for example. Into the- in particular, the mixing cartridge can be arranged on the insert with one end face or with one of its longitudinal ends. The insert can be formed at least partially from a cylinder. Furthermore, the insert can have at least one cold water channel for the cold water and / or at least one hot water channel for the hot water. Furthermore, the at least one cold water channel can open into a cold water inlet opening and / or the at least one hot water channel can open into a hot water inlet opening of the mixing cartridge. Furthermore, the insert can have a mixed water line, for example in the form of a further channel in the insert, via which the mixed water mixed by the mixing cartridge can be fed to a mixed water channel. The mixed water line can run through at least partially in a longitudinal direction (in particular parallel to a longitudinal axis of the fitting housing and / or parallel to a perpendicular direction in an installed state of the sanitary fitting) and / or in a radial direction (in particular orthogonal to the longitudinal direction) extend the mission. The insert can be held at least partially in the cartridge receptacle by a flange section of the cartridge receptacle. The flange section is formed in particular on a longitudinal end of the cartridge receptacle and / or extends inward in the radial direction. The insert can be positively connected in the longitudinal direction to the flange section of the cartridge receptacle. The mixing cartridge and the insert can be attached to the cartridge mount by a nut that can be screwed to the cartridge mount. For this purpose, the cartridge receptacle can have a thread that is designed, for example, in the manner of an internal thread. The nut presses the mixing cartridge in particular against the insert, so that the mixing cartridge and the insert are clamped together.

Furthermore, the sanitary fitting has at least one supply line for the cold water and / or hot water, by means of which the cold water and / or hot water can be supplied to the sanitary fitting, for example from a public water supply network or a hot water heater. The at least one feed line can in particular be a flexible hose line. The at least one supply line is in use or in the at least one cold water channel or the at least one hot water channel of the insert inserted.

In addition, the sanitary fitting has at least one fastening element that is inserted into the insert over a circumferential surface of the insert. The circumferential surface of the insert extends in particular in a circumferential direction of the insert or in particular around the longitudinal axis of the fitting housing. Furthermore, the peripheral surface of the insert can limit the insert in the radial direction. The peripheral surface of the insert is in particular not an end face of the insert that points in particular in the longitudinal direction. The at least one fastening element is in particular (alone) held and / or guided by the insert. The at least one fastening element can be, for example, a strip-shaped, pen-shaped or writing-shaped component. In addition, the at least one fastening element can be designed in the manner of a clip. Furthermore, the at least one fastening element can at least partially consist of plastic, metal or sheet metal. Furthermore, the at least one fastening element is in particular not formed in one piece with the insert, but rather a separate component. The at least one fastening element is connected to the at least one feed line in such a way that the at least one fastening element prevents the at least one feed line from becoming detached from the insert. For this purpose, the at least one fastening element can, for example, be connected to the at least one feed line in a form-fitting manner.

In addition, the sanitary fitting comprises a base shaft for mounting the fitting housing. The base shaft can be at least partially tubular. Furthermore, the base shaft can in particular serve to fasten the sanitary fitting to the carrier. For this purpose, the base shaft can extend at least partially out of the fitting housing, so that the section of the base shaft protruding from the fitting housing can be plugged into a fastening opening of the carrier. A fastening element, for example in the manner of a fastening, can be attached to a longitudinal end of the base shaft opposite the water duct supply nut, can be fastened, by means of which the sanitary fitting can be fastened to the carrier. A longitudinal, in particular lower, end of the fitting housing can be fastened to an outer circumferential collar of the base shaft, for example rotatable via a sliding bearing or a sliding ring. The circumferential collar of the base shaft makes contact in particular with the carrier when the sanitary fitting is installed. The base shaft is connected to the insert in such a way that the at least one fastening element is prevented from becoming detached from the insert. The base shaft closes in particular a receptacle of the insert for the at least one fastening element. In particular, the base shaft is connected to the insert without play. Due to the two-part design of the insert and the base shaft, these can easily be installed in the fitting housing. At the same time, the base shaft secures the at least one fastening element for the at least one supply line, so that no further components are required to secure it. This reduces the installation effort for the sanitary fitting. The base shaft can be plugged onto the insert. As a result, the base shaft can be plugged onto the insert in particular after the insert has been installed in the fitting housing. In particular, the base shaft can at least partially cover the peripheral surface of the insert. In addition, the insert can in particular be arranged at least partially in the base shaft.

The insert can have a receptacle for the at least one fastening element. The receptacle can be, for example, a guide and / or a receptacle space for the at least one fastening element in the insert. The at least one fastening element can be inserted into the receptacle in particular over the circumferential surface of the insert and / or in the radial direction. Furthermore, the at least one fastening element can be arranged in the receptacle without play, in particular in the longitudinal direction. The at least one feed line can have a groove into which the at least one fastening element engages. The groove extends in particular by 360 ° around the at least one feed line and / or is formed in the region of a longitudinal end of the at least one feed line. If the sanitary fitting has a first supply line for cold water and a second supply line for hot water, the at least one fastening element can be arranged between the two supply lines so that the at least one fastening element engages in the grooves of both supply lines. As a result, a plurality of supply lines can be secured to the insert by one (single) fastening element.

The at least one fastening element can be of flat design. This can mean in particular that the at least one fastening element, in particular in the longitudinal direction of the fitting housing, has a thickness of 1 mm (millimeters) to 5 mm. The insert and the base shaft can at least partially consist of different materials. For example, the insert can consist at least partially of a first material and the base shaft at least partially consist of a second material, the first material having a higher hardness than the second material. In particular, the insert can at least partially consist of a first plastic and the base shaft at least partially consist of a second plastic, the first plastic having a higher hardness than the second plastic. As a result, the insert can be made of a high-strength material or high-strength plastic and the base shaft can be made of a more cost-effective material or plastic. The fitting housing can be rotatably mounted on the base shaft. As a result, the outlet with the outlet opening can be pivoted in particular. The insert can extend into a cartridge holder for the mixing cartridge and into a water guide. The water duct can at least partially consist of brass and / or plastic. The water guide can be at least partially tubular.

A mixed water channel through which the mixed water can be fed to the outlet opening can be formed between the cartridge receptacle and the water duct. The cartridge receptacle can be arranged with the mixing cartridge at least partially in the water duct. The mixed water channel is designed in particular in the form of an (annular) gap between the cartridge receptacle and the water guide. For this purpose, the cartridge receptacle can have an outer diameter in the area of the mixed water channel, for example, which is smaller than an inner diameter of the water guide in the area of the mixed water channel. The mixed water channel can be at least partially delimited by an outer surface of the cartridge receptacle and / or an inner surface of the water duct. In addition, the mixed water channel can, for example, have a length (in particular in the longitudinal direction parallel to a longitudinal axis of the fitting housing) of 10 mm (millimeters) to 100 mm. The mixed water mixed by the mixer cartridge can be fed to the outlet opening of the spout via the mixed water channel without the mixed water coming into contact with the fitting housing. As a result, the fitting housing can at least partially consist of a material, such as plastic or zinc, for example, which is not suitable for drinking water, which results in a cost advantage. In addition, the outlet (in the longitudinal direction) can be formed in the area of the mixing cartridge on the rest of the fitting housing. The cartridge receptacle can have a first wall thickness of a maximum of 5 mm in the area of the mixed water channel. In particular, the first wall thickness can be 1 mm to 5 mm. The first wall thickness is measured in particular in the radial direction, that is to say in particular orthogonal to the longitudinal direction. Due to the low first wall thickness of the cartridge holder installation space for the mixed water channel and / or other components of the sanitary fitting can be saved.

The water duct can have a second wall thickness of a maximum of 5 mm in the area of the mixed water channel. In particular, the second wall thickness can be 1 mm to 5 mm. The second wall thickness is measured in particular in the radial direction. Due to the low second wall thickness of the water duct, (further) installation space for the mixed water channel and / or other components of the sanitary fitting can be saved. The mixed water channel can have a channel width of 1 mm to 10 mm. This ensures that the mixed water can flow through the mixed water channel with a sufficiently high flow rate. The channel width is measured in particular in the radial direction. The water duct can have an opening which connects the mixed water channel with the outlet opening. The opening extends in particular in the radial direction through the water guide. The mixed water can in particular flow from the mixed water channel through the opening in the direction of the outlet opening of the outlet. The invention and the technical environment are explained in more detail below with reference to the figures. It should be pointed out that the figures show a particularly preferred embodiment variant of the invention, but this is not restricted thereto. The same components are provided with the same reference numerals in the figures. They show schematically: FIG. 1: a sanitary fitting in a longitudinal section;

2: a region of the sanitary fitting in a longitudinal section; 3: the area of the sanitary fitting in a perspective sectional illustration;

4: an insert of the sanitary fitting in a perspective illustration.

5: a cartridge holder of the sanitary fitting in a perspective illustration;

6: a water guide of the sanitary fitting in a perspective illustration;

7: a base shaft of the sanitary fitting in a perspective illustration; and

8: a fastening element of the sanitary fitting in a perspective illustration.

Fig. 1 shows a sanitary fitting 1 in a longitudinal section. The sanitary fitting 1 has a fitting housing 2 with an outlet 4 having an outlet opening 3. A mixing cartridge 8 is arranged in the fitting housing 2, to which cold water can be supplied via a first supply line 6 and hot water via a second supply line 7 (shown in FIG. 3). The supply lines 6, 7 run through a base shaft 11. The fitting housing 2 and the base shaft 11 are tubular. In addition, a longitudinal lower end of the fitting housing 2 is rotatably attached to an outer circumferential collar 26 of the base shaft 11 via a sliding ring 27 (cf. also FIG. 2). The circumferential collar 26 of the base shaft 11 contacts, in the assembled state of the sanitary fitting 1, a carrier of the sanitary fitting 1 not shown here, which can be, for example, a worktop or a sink. On a side of the carrier opposite the collar 26, a mounting element 28 can be arranged on the base shaft 11, so that the sanitary fitting 1 can be fastened to the carrier. For example, the mounting element 28 can be screwed to the base shaft 11, in particular in the manner of a nut. By means of the mixing cartridge 8, the cold water and hot water can be mixed proportionally to form a mixed water with a desired mixed water temperature. The mixing cartridge 8 is fluidly connected to the outlet opening 3, so that the mixed water can be discharged via the outlet opening 3. Furthermore, the mixing cartridge 8 can be actuated by a lever 18, by means of which the mixed water temperature and a discharge amount of the mixed water via the outlet opening 3 can be set.

2 and 3 show the area of the sanitary fitting 1 marked with a rectangle in FIG. 1 in an enlarged view. The following description therefore relates to both figures. The fitting housing 2 extends along a (here vertical) longitudinal axis 34. The mixing cartridge 8 is arranged in a tubular cartridge receptacle 15. For this purpose, a cartridge housing 20 of the mixing cartridge 8 has an outside diameter which (essentially) corresponds to an inside diameter of the cartridge receptacle 15. Inside the cartridge receptacle 15, the mixing cartridge 8 sits with its lower cartridge end 24 on an insert 5, via which the cold water and the hot water can be supplied to the mixing cartridge 8. For this purpose, the first supply line 6 is inserted into a cold water channel 29 of the insert 5 and the second supply line 7 is inserted into a hot water channel 30 of the insert 5. The cold water can thus be fed to the mixing cartridge 8 via the cold water channel 29 and the hot water via the hot water channel 30. The insert 5 has a receptacle 12 for a fastening element 9. The fastener 9 is over a peripheral surface

10 of the insert 5 is pushed into the receptacle 12 in a radial direction 35 (orthogonal to the longitudinal axis 34) so that the fastening element 9 engages in a first groove 13 of the first feed line 6 and a second groove 14 of the second feed line 7. As a result, the first feed line 6 and the second feed line 7 are positively connected to the fastening element 9, so that the first feed line 6 and the second feed line 7 are secured to the insert 5. In the secured state, the first supply line 6 cannot detach from the cold water duct 29 and the second supply line 7 cannot detach from the hot water duct 30. The base shaft 11 extends in a longitudinal direction 25 (parallel to the longitudinal axis 34) the insert 5 is attached so that a first latching arm B1 and a second latching arm 32 of the base shaft 11 are latched into a fastening groove 33 of the insert 5. After the base shaft 11 has been plugged on, the base shaft 11 covers the receptacle 12 so that the fastening element 9 cannot become detached from the receptacle 12.

The insert extends into the cartridge receptacle 15 and is held there by a flange section 19 of the cartridge receptacle 15 in the cartridge receptacle 15. The flange section 19 is formed at a lower end of the cartridge receptacle 15 and prevents the insert 5 from being detached from the cartridge receptacle 15 in the longitudinal direction 25 downwards. The cartridge receptacle 15 extends into a tubular water duct 16, so that an annular mixed water channel 17 is formed between the cartridge receptacle and the water duct 16, which extends upwards from the lower end of the cartridge receptacle 15 parallel to the longitudinal axis 34 at least partially past the mixing cartridge 8 extends. The annular mixed water channel 17 is delimited by an outer surface of the cartridge receptacle 15 and an inner surface of the water guide 16 and has a channel width in the radial direction 35. The mixing cartridge 8 has at its lower cartridge de 24 a mixed water outlet not visible in FIGS. The mixed water mixed by the mixing cartridge 8 can thus be fed to the mixed water channel 17 via the mixed water line 21 of the insert 5. The mixed water can flow through the mixed water channel 17 to an opening 22 (cf. FIG. 1) which extends in the radial direction 35 through the water duct 16 and connects the mixed water channel 17 to a mixed water pipe 23 shown in FIG. 1. The mixed water can be fed from the mixed water channel 17 through the mixed water pipe 23 without contact to the outlet 4 of the outlet opening 3. Furthermore, the water guide 16 prevents the mixed water from coming into contact with the fitting housing 2. The opening 22 is formed in the longitudinal direction 25 at the level of the mixing cartridge 8. The outlet 4 can thus be at the level of the mixing cartridge 8 be trained. In this way, a particularly compact design of the sanitary fitting 1 can be implemented.

4 shows the insert 5 in a perspective illustration. In particular, the cold water channel 29 can be seen here, via which cold water can be supplied to the mixing cartridge 8 shown in FIGS. 2 and 3, and the warm water channel 30 via which the mixing cartridge 8 can be supplied with hot water. Furthermore, the mixed water line 21 can be seen here, via which the mixed water mixed by the mixing cartridge 8 can be fed to the mixed water channel 17 shown in FIGS. 2 and 3. For this purpose, the mixed water line 21 is designed in such a way that the mixed water can leave the insert 5 in the radial direction 35.

5 shows the cartridge receptacle 15 in a perspective illustration. The cartridge receptacle 15 has a first groove 36 in which a slide ring 37 shown in FIG. 3 can be arranged. Furthermore, the cartridge receptacle 15 has a groove 38 in which a seal 39 shown in FIG. 3, in particular in the manner of an O-ring, can be arranged.

Fig. 6 shows the water guide 16 in a perspective view. The opening 22, which connects the mixed water channel 17 shown in FIGS. 2 and 3 with the outlet opening 3 of the outlet 4 shown in FIG. 1, can be seen here in particular.

7 shows the base shaft 11 in a perspective illustration. In particular, the first latching arm 31 and the second latching arm 32 as well as the collar 26 can be seen here.

8 shows the fastening element 9 in a perspective illustration. The fastening element 9 is here flat or designed in the manner of a sheet metal strip. The present invention enables a base shaft and an insert to be easily mounted in a fitting housing and enables the supply lines to be secured with a reduced number of components.

List of reference symbols

1 sanitary fitting

2 valve body S outlet opening

4 outlet

5 use

6 first feed line

7 second feed line 8 mixing cartridge

9 fastener

10 circumferential surface

11 base shaft

12 receptacle 13 first groove

14 second groove

15 cartridge holder

16 Water flow

17 Mixed water duct 18 Lever

19 flange section

20 cartridge housing

21 Mixed water pipe

22 opening 23 mixed water pipe

24 lower end of the cartridge

25 longitudinal direction

26 collar

27 sliding ring 28 mounting element

29 cold water duct

30 hot water duct

31 first locking arm 32 second locking arm

33 mounting groove

34 longitudinal axis

35 radial direction

36 first groove 37 sliding ring

38 second groove

39 Seal

Claims

1. Sanitary fitting (1), at least having:

- A fitting housing (2) with an outlet (4) having an outlet opening (S);

- An insert (5) which is arranged in the fitting housing (2);

- At least one feed line (6, 7) for a liquid which is inserted into the insert (5) so that the liquid can be fed to a mixed water by means of the insert (5) of a mixing cartridge (8) for mixing cold water and hot water; - At least one fastening element (9) which is inserted into the insert (5) over a circumferential surface (10) of the insert (5) so that the at least one feed line (6, 7) is secured to the insert (5); and

- A base shaft (11) for mounting the fitting housing (2), which is connected to the insert (5) in such a way that the at least one fastening element (9) is prevented from becoming detached from the insert (5).

2. Sanitary fitting (1) according to claim 1, wherein the base shaft (11) can be plugged onto the insert (5).

3. Sanitary fitting (1) according to one of the preceding claims, wherein the insert

(5) has a receptacle (12) for the at least one fastening element (9).

4. Sanitary fitting (1) according to one of the preceding claims, wherein the at least one supply line (6, 7) has a groove (13, 14) into which the at least one fastening element (9) engages.

5. Sanitary fitting (1) according to one of the preceding claims, wherein the at least one fastening element (9) is flat.

6. Sanitary fitting (1) according to one of the preceding claims, wherein the insert (5) and the base shaft (11) are at least partially made of different materials.

7. Sanitary fitting (1) according to one of the preceding claims, wherein the Arma turengehäuse (2) is rotatably mounted on the base shaft (11).

8. Sanitary fitting (1) according to one of the preceding claims, wherein the insert (5) extends into a cartridge receptacle (15) for the mixing cartridge (8) and into a water duct (16).

9. Sanitary fitting (1) according to claim 8, wherein the cartridge receptacle (15) and the water duct (16) are at least partially tubular.

10. Sanitary fitting (1) according to claim 8 or 9, wherein between the Kartuschenauf receiving (15) and the water duct (16) a mixed water channel (17) is formed through which the mixed water of the outlet opening (3) can be fed.