EP2865815A1 - Sanitary faucet - Google Patents

Abstract

The invention relates to a sanitary outlet fitting (1) with a fitting body (3), the body interior opens into a water outlet (5), with an intermediate holder (2) (2) in the water outlet (5) can be fastened and with a sanitary Insertion part (6) which can be inserted and fixed in the open-ended downstream end face of the intermediate holder (2). For the outlet fitting according to the invention is characterized in that the intermediate holder (2) on the inflow side with a, in the tube interior (4) of the fitting body (3) guided water hose is connected or connectable (see Fig .. 4).

Description

The invention relates to a sanitary outlet fitting with a fitting body whose body interior opens into a water spout, with an intermediate holder which can be fastened in the water outlet and with a sanitary insert part which is insertable and fixable in the open-ended downstream end face of the intermediate holder.

Sanitary discharge units, such as jet regulators, are usually releasably secured in the outlet of a sanitary cast iron fitting, for example by means of screw, clamp or snap-in connections. This requires a correspondingly machined casting fitting, which is to be provided for example with a suitable thread or otherwise corresponding fastening devices. Thus, in the manufacture of sanitary cast fittings so far are processing steps, such as the milling of a thread or a circumferential groove, or there are other fastening devices for inserting the sanitary outlet unit required. Additional processing steps represent a high work and cost. In addition, in the manufacturing process of cast fittings also blowholes or The same casting defects occur, which lead to problems in the subsequent machining further processing or surface treatment of the cast fittings. Such faulty outlet fittings may under certain circumstances no longer be used. If the water jet is to be passed through a hygienic water supply without direct contact with the cast iron fitting through it, via a separate pipe provided inside the cast iron fitting, it is likewise necessary to use cast iron fittings which have been machined accordingly.

From the WO 2004/038112 A1 already a sanitary outlet fitting of the type mentioned above is known which has a tubular fitting body, the tube interior opens into a, water outlet. The previously known outlet fitting has a pot-shaped or sleeve-shaped intermediate holder, which is held by pressing, gluing, snap, Verkrallen or wedging in the water outlet of the fitting body. The prior art outlet fitting is associated with a sanitary insert part, which can be inserted into the open-ended downstream end face of the intermediate holder and releasably fixed therein. The insert part can be designed as a jet regulator, flow regulator, non-return valve and / or attachment screen. In order to seal the intermediate holder in the water outlet and to prevent unwanted leakage currents between the intermediate holder and the fitting body is in the WO 2004/038112 A1 proposed that an O-ring, a flat gasket or other additional seals, or provided to the intermediate holder seals are provided or that a seal by the connecting means, such as the adhesive used in the bonding, takes place.

Since the fitting body regularly formed as a metal casting is, since such castings usually have voids, in the area of which the valve can be less well sealed, there is a risk that form over time unwanted leakage currents between the intermediate holder and the fitting body. However, if the sealing is done by elastic sealing rings or by the adhesive layer, the materials used must be food grade, which can increase the production cost even further.

There is therefore in particular the task of creating an outlet fitting of the type mentioned above, which is characterized by a reduced production cost.

The outlet fitting according to the invention has a fitting body, whose body interior opens into a water outlet. The outlet fitting according to the invention has an intermediate holder which can be fastened in the water outlet. In the open-formed downstream end face of the intermediate holder, a sanitary insert part is used, which may be designed as a jet regulator, flow rate regulator or, for example, as a front screen or may have such jet-guiding or jet-forming components. According to the invention, it is provided that the intermediate holder on the inflow side has a connecting piece which is connected or connectable to a water hose guided in the tube interior of the fitting body. The water flowing through the water hose can flow into the intermediate holder via the connecting piece and, after flowing through the insert part located therein, emerge as a homogenous, pearly-soft, non-spraying and optionally also flow-limited water jet. Since the water no longer flows directly through the body interior of the fitting body directly, but instead the water hose guided therein, is one to avoid unwanted creepage currents or leaks needed and in particular a machining of the outlet fitting itself no longer mandatory. Since seals and sealing adhesive layers in the annular zone between the intermediate holder on the one hand and the fitting body on the other hand are dispensable, the production cost of the outlet fitting according to the invention is significantly reduced.

The provided in the outlet fitting according to the intermediate holder can be combined with jet regulators or other sanitary outlet units, which can also be used and fixed in unprocessed sanitary outlet fittings. Labor and cost-intensive processing steps in the production and further processing, in particular of cast fittings thus eliminated. The intermediate holder is connected on the inflow side with a guided in the body interior of the fitting body water hose or connectable. This water hose is a particularly hygienic water flow, which avoids any direct contact of the water to the sanitary outlet fitting.

In order to carry out repairs or maintenance even when needed in the body interior of the fitting body of a sanitary outlet fitting, it is advantageous if the intermediate holder in the water outlet is releasably fastened. After the intermediate holder has been dissolved in the water outlet, repair and maintenance work in the body interior of the fitting body are possible without the at least provisionally withdrawn from the outlet fitting intermediate holder in the way.

A particularly advantageous embodiment according to the invention provides that the outlet fitting is made without machining at least in the, the intermediate holder receiving portion of its water outlet. In this case, the outlet fitting, for example, be made of sheet metal. In order to be able to remove the insert part held in the outflow-side end face of the intermediate holder from there and expose it, for example, for descaling or for other maintenance work, it is advantageous if the sanitary insert part can be detachably fixed in the downstream end face of the intermediate holder.

In order to securely, tightly and firmly connect the intermediate holder with the insert in the body interior of the outlet fitting, it is advantageous if the intermediate holder on the inflow side has a connection piece, which is connected to the water hose or connectable.

In order to secure the intermediate holder sufficiently firmly in the water outlet of the fitting body, it is advantageous if the intermediate holder has at least one fastening means which is positively and / or frictionally connected to the fitting body connectable. Since the intermediate holder has at least one fastening means which allows a positive and / or frictional connection on the fitting body, the expense associated with the manufacture and assembly of the outlet fitting according to the invention is additionally reduced.

A particularly easy to produce and mount with little effort embodiment according to the invention provides that the sanitary insert is designed as Einsetzpatrone having a cartridge housing, and that the cartridge housing in the intermediate holder by means of a screw or Renkverbindung is releasably fastened. In this embodiment, the sanitary insert part can be inserted into the intermediate holder to be subsequently releasably fixed there by means of a screw or bayonet connection.

In this case, a preferred embodiment, which can be produced with particularly little effort, provides that an outer thread is provided on the housing periphery of the cartridge housing, which external thread cooperates with an internal thread in the intermediate holder.

The flow-through insert part can serve to guide the water jet, to shape or limit. An advantageous embodiment according to the invention is therefore that the insertion part has a jet regulator and / or a flow rate regulator and preferably an inflow-side attachment screen. It can be filtered out with the help of the attachment screen in the water possibly entrained dirt particles before the water flows out of the water outlet of the sanitary outlet fitting.

In order to secure the intermediate holder so firm and at the same time easily detachable in the water outlet of the fitting body, provides a development according to the invention that protrudes at the inflow-side end face of the intermediate holder at least one web or at least one wall, which web or which wall on at least one opposite wall or at least a counterpart in the fitting body form-fitting or frictionally engages.

Thus, the intermediate holder can withstand high water pressures and thus the intermediate holder also withstands torsional forces in the direction of rotation, which act when removing and screwing the sanitary insert into the intermediate holder, it is advantageous if the intermediate holder or in the fitting body at least two mutually associated and spaced apart Webs or walls or counter webs or opposing walls are provided, which delimit an intermediate or insertion space, in which intermediate or insertion a counterpart web or a counter wall or a web or a wall of the other component is positively or frictionally fixable.

It may be expedient if at least one projection projecting onto at least one web or a wall or counterpart web or counter wall protrudes at least one retaining projection for abutment with the adjacent web or counter wall or web or wall. Such a retaining projection may be formed practically barb-like and cause the firm hold between the intermediate holder on the one hand and the water outlet delimiting edge region of the fitting body on the other.

In this case, a preferred embodiment according to the invention provides that projecting retaining projections are provided on the pairwise associated webs or walls or counter-webs or opposing walls respectively, in the intermediate or plug-in space.

In addition to the connection between the intermediate holder and fitting body ensuring webs or walls or instead, the intermediate holder can be expanded by inserting the sanitary insert part at least in a partial area such that the intermediate holder is then held form-fitting or frictionally engaged in the water outlet.

In this case, a preferred embodiment, which is characterized by a secure function, provides that the intermediate holder has at its intermediate holder circumference at least one spring bar which is movable or rebound from a release position by inserting the sanitary insert part in a holding position, in which holding position of Spring bar engages behind a portion of the fitting body.

In order that the at least one, provided on the intermediate holder spring bar can spring well into the release position and just as easily spring into the holding position, it is advantageous if the free spring bar end of the at least one spring bar is oriented in the insertion direction of the intermediate holder.

A particularly firm hold of the intermediate holder on the water outlet delimiting edge region of the fitting body is favored when projecting at the free spring bar end of the at least one spring bar a holding cam or a retaining projection with which / the spring bar engages behind the water outlet delimiting inner peripheral edge region of the fitting body.

Further developments according to the invention will become apparent from the drawings in conjunction with the description and the claims. The invention will be described in more detail below with reference to preferred embodiments.

Fig. 1

eine in einem Längsschnitt dargestellte sanitäre Auslaufarmatur im Bereich ihres Wasserauslaufs, wobei im Wasserauslauf der sanitären Auslaufarmatur ein, einen Anschlussstutzen für einen Wasserschlauch aufweisender Zwischenhalter gehalten ist, in den ein sanitäres Einsetzteil eingesetzt werden kann,

Fig. 2

den in einem Detail-Längsschnitt dargestellten und in den Armaturenkorpus der Auslaufarmatur eingesetzten Zwischenhalter im Bereich einer reibschlüssigen Verbindung zwischen Zwischenhalter und Armaturenkorpus,

Fig. 3

die sanitäre Auslaufarmatur aus Figur 1 und 2 in einer auseinandergezogenen Einzelteildarstellung in Draufsicht auf ihre Bestandteile,

Fig. 4

die Auslaufarmatur aus Figur 1 bis 3 in einer auseinandergezogenen Einzelteildarstellung in einer Unteransicht auf ihre wesentlichen Bestandteile,

Fig. 5

eine in einem Teil-Längsschnitt dargestellte sanitäre Auslaufarmatur im Bereich ihres Wasserauslaufs, wobei im Wasserauslauf auch der hier dargestellten Auslaufarmatur ein Zwischenhalter gehalten ist, der durch Einsetzen eines sanitären Einsetzteiles zumindest in einem Teilbereich derart aufweitbar ist, dass der Zwischenhalter anschließend form- oder reibschlüssig im Wasserauslauf gehalten ist, wobei das Einsetzteil hier unmittelbar vor dem Einsetzen in den Zwischenhalter gezeigt ist,

Fig. 6

den bereits in den Wasserauslauf des Armaturenkorpus eingesetzten Zwischenhalter, der hier unmittelbar vor dem Einsetzen des sanitären Einsetzteiles dargestellt ist,

Fig. 7

die Auslaufarmatur aus Figur 5 und 6 nach dem Einsetzen des sanitären Einsetzteiles in den im Wasserauslauf befindlichen Zwischenhalter,

Fig. 8

die Auslaufarmatur aus Figur 5 bis 7 in einem Detail-Längsschnitt im Bereich ihres Zwischenhalters, wobei der Zwischenhalter hier nun nach dem Einsetzen des Einsetzteiles den den Wasserauslauf umgrenzenden Innenumfangsrandbereich des Armaturenkorpus hintergreift, und

Fig. 9

die in einer auseinandergezogenen Einzelteildarstellung gezeigte Auslaufarmatur aus Figur 5 bis 8 in einer Unteransicht auf ihre Bestandteile.

It shows:

Fig. 1

a sanitary outlet fitting shown in a longitudinal section in the region of its water outlet, wherein in the water outlet of the sanitary outlet fitting a, a connection piece for a water hose exhibiting intermediate holder is held, in which a sanitary insert part can be used

Fig. 2

the intermediate holder shown in a detail longitudinal section and inserted into the fitting body of the outlet fitting in the region of a frictional connection between the intermediate holder and fitting body,

Fig. 3

the sanitary outlet fitting off FIGS. 1 and 2 in an exploded single part view in plan view of its components,

Fig. 4

the outlet fitting off Figure 1 to 3 in an exploded single part view in a bottom view on its essential components,

Fig. 5

a shown in a partial longitudinal section sanitary outlet fitting in the water outlet, wherein in the water outlet and the outlet fitting shown here, an intermediate holder is held, which is expandable by inserting a sanitary insert part at least in a partial area such that the intermediate holder then form-fitting or frictionally engaged in Water outlet is held, wherein the insert is shown here immediately before insertion into the intermediate holder,

Fig. 6

the intermediate holder already inserted into the water outlet of the fitting body, which is shown here immediately before the insertion of the sanitary insert part,

Fig. 7

the outlet fitting off FIGS. 5 and 6 after inserting the sanitary insert into the intermediate holder located in the water outlet,

Fig. 8

the outlet fitting off Figure 5 to 7 in a detail longitudinal section in the area of its intermediate holder, wherein the intermediate holder here now after insertion the Einsetzteiles engages behind the water outlet delimiting inner peripheral edge region of the fitting body, and

Fig. 9

the outlet fitting shown in an exploded single part view FIGS. 5 to 8 in a bottom view on their components.

In the FIGS. 1 to 9 is a sanitary outlet fitting in two different versions 1, 10 shown. The outlet fittings 1, 10 have a tubular fitting body 3, the tube interior 4 opens into a, water outlet 5. In the water outlet 5 of the outlet fittings 1, 10, an intermediate holder 2, 20 can be fastened, which is designed cup-shaped here. In the open-ended downstream end side of the intermediate holder 2, 20 is a sanitary insert 6 can be used, which may have a jet regulator and additionally or instead a flow regulator and preferably also an inflow-side attachment screen 7.

In the FIGS. 1 to 9 It can be seen that the intermediate holder 2, 20 on the inflow side has a connecting piece 8, which is connected or connectable with a guided in the tube interior 4 of the fitting body 3, but not shown here water hose. The tap water flowing through the water hose can flow into the intermediate holder 2, 20 via the connection stub 8 and, after flowing through the insert 6 located therein, can flow out as a homogeneous, non-spraying, optionally sparkling-soft and, if necessary, flow-limited water jet. Since the water no longer flows directly through the pipe interior 4, but instead the water hose guided therein, unwanted leakage currents and / or leaks at the outlet fitting 1, 10 are not to be feared even if, for example as a metal casting produced valve body 3 voids should have in the region of the water outlet 5. Since sealing rings and sealing adhesive layers are dispensable in the annular zone between the intermediate holder 2, 20 and the fitting body 3, the production cost of the outlet fittings 1, 10 shown here is considerably reduced. Since the water outlet 5 of the fitting body is sealed by the intermediate holder 2, 20 in its outer annular zone and since the intermediate holder 2, 20 in the water outlet 5 form and / or frictionally fixed, the outlet fittings can optionally also be made of sheet metal.

From the FIGS. 1 . 3 to 5 such as 7 and 9 It will be understood that the sanitary insert 6 is formed as an insert cartridge having a cartridge case. In this case, the cartridge housing of Einsetzpatrone 6 in the intermediate holder 2, 20 fastened here by means of a screw connection. For this purpose, the insert part 6 has on the housing periphery of its cartridge housing an external thread 9, which external thread 9 cooperates with an internal thread 11 in the intermediate holder 2, 20.

The intermediate holders 2, 20 assigned to the outlet fittings 1, 10 have at least one fastening means which is connected or connectable to the fitting body 3 in a form-fitting manner and additionally or instead also by frictional engagement.

In the in the FIGS. 1 to 4 at least one web or a wall 12, 13 is provided on the inflow-side end face of the intermediate holder 2, which web or wall 12, 13 at least one counter wall 14 or a counterpart in the tube interior 4 of the fitting body 3 form-fit and additionally or instead frictionally engages. In the in the FIGS. 1 to 4 Armature version 1 shown by way of example are on the inflow side Front side of the intermediate holder 2 each pairwise associated webs or walls 12, 13 are provided, which define an intermediate or insertion space 15 between them. In this intermediate or insertion space 15 of the associated and in the tube interior of the valve body 4 in the direction of the water outlet 5 projecting counterpart web or the protruding counter wall 14 is used and positively and / or frictionally fixed. At least on the at least one web or on the at least one wall 12, 13 of the intermediate holder 2, 20 or at least on the at least one counter-web or the at least one opposite wall 14 in the fitting body can protrude at least one barb-like holding projection 16, here, for example, as an elastically resilient holding web is designed. In the detail longitudinal section in FIG. 2 is clearly visible that at least two and preferably a plurality of spaced-apart in the insertion direction retaining projections 16 are provided, which create friction after pushing on the opposite wall 14 of these.

In the FIGS. 5 to 9 It can be seen that the outlet fitting 10 shown there has an intermediate holder 20 which is expandable by inserting the sanitary insert part 6 at least in a partial area such that the intermediate holder 20 is then held positively and additionally or instead also frictionally engaged in the water outlet 5 of the fitting body 3. The free spring bar end 18 of the at least one spring bar 17 is oriented in the insertion direction of the intermediate holder 20. At the free spring bar end 18 of the at least one spring bar 17 is a retaining cam 19 or a retaining projection, with which retaining cam 19 of the spring bar 17 engages behind the water outlet 5 bounding inner peripheral edge region of the fitting body 3. By inserting the insert 6 in the intermediate holder 20 is Thus, a firm connection between the intermediate holder 20 and the fitting body 3 is achieved, which causes a self-reinforcing under the pressure of the incoming water hold of the intermediate holder 20 in the outlet fitting 10.

LIST OF REFERENCE NUMBERS

1

Outlet fitting (according to the FIGS. 1 to 4 )

2

Intermediate holder (according to the FIGS. 1 to 4 )

3

Fittings Body:

4

Tube interior

5

water spout

6

insert

7

attachment screen

8th

spigot

9

external thread

10

Outlet fitting (according to the FIGS. 5 to 9 )

11

inner thread

12

wall

13

wall

14

Gegenwandung

15

Intermediate or insertion space

16

retaining projection

17

spring bar

18

Spring Bar-end

19

holding cam

20

Intermediate holder (according to the FIGS. 5 to 9 )

Claims (15)

Sanitary outlet fitting (1, 10) with a fitting body (3), the body interior (4) opens into a water outlet (5), with an intermediate holder (2, 20), the (2, 20) in the water outlet (5) attachable is and with a sanitary insert part, which is inserted into the open-ended downstream end face of the intermediate holder (2, 20), characterized in that the intermediate holder (2, 20) upstream of a connecting piece (8) which with the water hose (1, 10) is connected or connectable. Outlet fitting according to claim 1, characterized in that the intermediate holder (2, 20) on the inflow side a connecting piece (8) which is connected to a in the body interior (4) of the fitting body (3) guided water hose or connectable. Outlet fitting according to claim 1 or 2, characterized in that the outlet fitting (1, 10) at least in the intermediate holder (2, 20) receiving area of its water outlet is made without machining. Outlet fitting according to one of claims 1 to 3, characterized in that the intermediate holder (2, 20) has at least one fastening means which is positively and / or frictionally connected to the fitting body (3) connectable. Outlet fitting according to one of claims 1 to 4, characterized in that the sanitary insert part (6) is designed as Einsetzpatrone, which is a cartridge housing has, and that the cartridge housing in the intermediate holder (2, 20) by means of a screw or Renkverbindung is detachably fastened. Outlet fitting according to one of claims 1 to 5, characterized in that on the housing periphery of the cartridge housing, an external thread (9) is provided, which external thread (9) with an internal thread (11) in the intermediate holder (2, 20) cooperates. Outlet fitting according to one of claims 1 to 6, characterized in that the insert part (6) has a jet regulator and / or a flow rate regulator and preferably an inflow-side attachment screen (9). Outlet fitting according to one of claims 1 to 7, characterized in that on the inflow-side end face of the intermediate holder (2) at least one web or wall (12, 13) protrudes, which web or which wall (12, 13) on at least one opposite wall ( 14) or at least one counterpart in the fitting body (3) positively or frictionally engages. Outlet fitting according to one of claims 1 to 8, characterized in that on the intermediate holder (20) or on the fitting body (3) at least two mutually associated and spaced apart webs or walls (12, 13) or counter-webs or Gegenwandungen are provided which an intermediate or insertion space (15) limit, in which intermediate or insertion space (15) a counter web or a counter wall (14) or a web or a wall of the other component (3; 20) is positively or frictionally fixable. An outlet fitting according to one of claims 1 to 9, characterized in that at a specific at least one ridge or wall (12, 13) or counter web or Gegenwandung at least one, for engagement with said / the adjacent article web or Gegenwandung (14) or ridge or wall Projecting projection (16) protrudes. Outlet fitting according to one of claims 1 to 10, characterized in that at the mutually associated webs or walls (12, 13) or counter-webs or Gegenwandungen each, in the intermediate or insertion space projecting holding projections (16) are provided. Outlet fitting according to one of claims 1 to 11, characterized in that the intermediate holder (20) by inserting the sanitary insert part (6) at least in a portion of its intermediate holder circumference is expandable such that the intermediate holder (20) then form or frictional in Water outlet (5) is held. Outlet fitting according to one of claims 1 to 12, characterized in that the intermediate holder (20) at its intermediate holder circumference at least one spring bar (17) which is movable or rebound from a release position by inserting the sanitary insert part (6) in a holding position , in which holding position the spring web (17) engages behind a partial region of the fitting body (3). Outlet fitting according to one of claims 1 to 13, characterized in that the free spring bar end (18) of the at least one spring bar (17) in the insertion direction of the intermediate holder (20) is oriented. Outlet fitting according to one of claims 8 to 14, characterized in that at the free end of the spring bar (18) of the at least one spring bar (17) projecting a retaining cam (19) or a retaining projection, with the / the spring bar (17) the the water outlet (5) engages behind the bounding inner peripheral edge region of the fitting body (3).

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