EP3122949B1 - Flush-mounting installation device for single-lever mixing taps - Google Patents

Description

The invention relates to a concealed installation device for Einhebelmischarmaturen with a cartridge and a spout, which is connected to a mixing chamber in the cartridge, to which a hot and a cold water connection are connected and which is arranged in a base body, wherein the feed from the warm - And the cold water connection with the aid of the cartridge is controllable and wherein the cartridge is arranged in an adapter which is twisted in angles of 90 ° in the body can be installed.

Flush-mounted installation devices of the aforementioned type are used in fittings for showers, bathtubs or wall-mounted washbasin spouts. They are arranged in recesses provided in the masonry. To attach the devices are bolted to the masonry. The recess with the built-in flush installation device is covered after assembly, for example, with a rosette. The actuation and control elements of the valve then enforce openings in the assembled state, which are provided in the rosettes. At the actuating and control member of the single lever mixer is mounted in the assembled state.

Usually, the flush-mounted installation devices are mounted such that the spout is arranged horizontally next to the single-lever mixer. It does not matter if the spout is on the left or right of the single-lever mixer. It is also possible to provide the outlet vertically above or below the single-lever mixer. The installation position is generally based on the local conditions, in particular on how the spatial conditions are or from which side the water pipes for hot and cold water are brought to the installation device. But the question of whether right-handed or left-handed people mainly serve the single-lever fitting may also play a role.

• Einerseits kann der Einbau derart erfolgen, dass der Griff des Einhebelmischers bei mittlerer Mischtemperatur vertikal in die dem Boden abgewandte Richtung ausgerichtet ist, andererseits kann der Einbau derart erfolgen, dass der Griff des Einhebelmischers bei mittlerer Mischtemperatur horizontal ausgerichtet ist. Eine Beimengung von zusätzlichem warmem Wasser erfolgt, indem der Griff des Einhebelmischers im Uhrzeigersinn, also bei vertikaler Ausrichtung des Griffs nach rechts, bei horizontaler Ausrichtung des Griffs nach unten geschwenkt wird. Eine Reduzierung der Wassertemperatur erfolgt durch eine Schwenkbewegung des Griffs des Einhebelmischers gegen den Uhrzeigersinn, also bei vertikaler Ausrichtung nach links, bei horizontaler Ausrichtung nach oben.

The above-described different mounting position of the flush-mounted installation devices is technically no problem. However, arise in the different mounting positions situations that reduce the ease of use. This results from the fact that the cartridge provided in the fitting specifies a certain direction of movement, with respect to the regulation of the water temperature. Usually, the cartridge is designed so that when the lever is moved counterclockwise, cold water is added, whereas warm water is mixed in a clockwise movement. The usual assembly of the devices takes place in such a way that the single-lever mixer is arranged to the right of the outlet. Here are two installation situations to distinguish:

• On the one hand, the installation can take place in such a way that the handle of the single-lever mixer is aligned vertically in the direction away from the bottom at medium mixing temperature, on the other hand, the installation can be such that the handle of the single-lever mixer is horizontally aligned at medium mixing temperature. Adding extra warm water is achieved by turning the handle of the single-lever mixer clockwise, that is, with the handle in a vertical orientation to the right, with the handle horizontally pointing downwards. A reduction of the water temperature takes place by a pivoting movement of the handle of the single lever mixer counterclockwise, so with vertical orientation to the left, with horizontal orientation upwards.

Now, if the device is mounted in the reverse position, so that the single lever mixer is located to the left of the spout, this still leads to an admixture of warm water by moving the single lever mixer clockwise; However, at the same time it leads to the fact that contrary to the usual installation situation, an admixture of warm water in vertical orientation of the handle is caused by a movement to the left, with horizontal orientation of the handle upwards, which is unusual for the user. This can lead to scalding of the user in the worst case, since the user due to the usual installation positions the single lever mixer in the expectation to the left or to the top turns that cold water leaves the spout and in fact hot water on the other hand comes out of the fitting. As far as it is a shower fitting, this can directly lead to scalding the whole body.

The EP 1 798 349 A1 discloses a connection device for a concealed fitting with a mixing cartridge. The cartridge is in an insert which is rotatable relative to the housing of the device.

The DE 10 2007 035 969 A1 describes a kit for a ceramic valve with a cylindrical housing and a rotatable control cylinder disposed therein.

In the US Pat. No. 6,832,396 B1 a device for receiving a mixing valve is specified. In this case, a part of the device in which the mixing valve is arranged, rotatable by 180 °, so that the function of the inlets for hot and cold water can be reversed.

The US 3,761,967 A relates to a housing for a mixing cartridge with integrated fittings for connection to pipes in the wall.

The DE 10 2010 031 896 A1 describes a tap extension fitting having an external thread and a sealing area for connection to a wall connection.

In the DE 86 12 105 U1 discloses a flush-mounted mixer, which has a covering rosette with a threaded connection, wherein the threaded connection can be plugged onto a mixed water line.

The invention aims to remedy this situation. The invention has for its object to provide a flush-mounted installation device for single lever mixing valves, which allows a constant regardless of the installation position operation. According to The invention solves this problem in that the adapter has an external square at its end facing away from the cartridge, which in the assembled state of the adapter grips into a square socket in the base body.

With the invention, a flush-mounted installation device for single-lever mixing valves is created, which allows an always consistent operation of the single-lever mixer, regardless of the installation position of the flush-mounted installation device. This is ensured by the fact that the cartridge on which the Einhebelmischgriff is placed, can be installed rotated in different positions in the body. In a typical installation, where the single-lever mixer is positioned to the right of the spout, a standard installation will take place. In an arrangement in which the Einhebelmischgriff is located to the left of the spout, however, an installation of the adapter with cartridge is rotated by 180 °. This ensures that the handle is arranged in the same position on the installation device, as is the case in the reverse installation position. Thus, even in this position, the pivoting movement of the Einhebelmischgriffs to the right or down to an admixture of warm water, as is the case with the opposite mounting position. Thus, the ease of use and safety in the operation of the device according to the invention are substantially improved, since the user can habitually operate the valve.

The adapter has at its end facing away from the cartridge on an external square, which summarizes in the assembled state of the adapter into a square socket in the body. By the combination
the inner and the Außenvierkants is ensured in a simple manner that the adapter can be installed in angles rotated by 90 ° in the body. An obstructing the function of the flush-mounted installation device installation position at a different angle is thereby prevented.

In an embodiment of the invention, the adapter in its side facing away from the cartridge on an annular groove which has a bore which passes through the adapter. With the help of the hole can be easily transported through one of the water connections entering water in the direction of the cartridge.

Preferably, the adapter is provided at its end facing away from the outer square end with a pipe section which receives the cartridge. This creates a particularly simple way to reliably arrange commercial cartridges for single-lever mixer in the flush-mounted installation device.

In another embodiment of the invention, the pipe section has a bottom into which the bore and the channel open. The entering via the feeds into the installation device water enters in this area from the adapter and into the cartridge, where a mixture takes place depending on the setting.

In a preferred embodiment of the invention is based on the bottom of a hole that ends in an annular gap. The bore allows the water to exit the mixing chamber in the cartridge so that the water flows out at the selected temperature. Through the annular gap, the mixed water flows out of the adapter and can flow from there in the direction of the outlet.

Figur 1

den Längsschnitt durch eine Unterputz-Installationsvorrichtung;

Figur 2

die Untersicht auf die in Figur 1 dargestellte Unterputz-Installationsvorrichtung;

Figur 3

die Draufsicht auf die in Figur 1 dargestellte Unterputz-Installationsvorrichtung;

Figur 4

die dreidimensionale Darstellung der in Figur 1 dargestellten Unterputz-Installationsvorrichtung;

Figur 5

den Längsschnitt durch einen Adapter;

Figur 6

die Untersicht auf den in Figur 1 dargestellten Adapter;

Figur 7

die Draufsicht auf den in Figur 1 dargestellten Adapter;

Figur 8

den Schnitt entlang der Linie B-B in Figur 7 (die in Fig.8 offenbarte Ausführungsform fällt nicht im Schutzumfang des Anspruchs 3)

Figur 9

die Untersicht auf einen Grundkörper;

Figur 10

den Schnitt entlang der Linie B-B in Figur 9;

Figur 11

den Schnitt entlang der Linie A-A in Figur 9.

Other developments and refinements of the invention are specified in the remaining subclaims. An embodiment of the invention is illustrated in the drawings and will be described in detail below. Show it:

FIG. 1

the longitudinal section through a flush-mounted installation device;

FIG. 2

the soffit to the in FIG. 1 illustrated flush-mounted installation device;

FIG. 3

the top view of the in FIG. 1 illustrated flush-mounted installation device;

FIG. 4

the three-dimensional representation of in FIG. 1 illustrated flush-mounted installation device;

FIG. 5

the longitudinal section through an adapter;

FIG. 6

the soffit to the in FIG. 1 illustrated adapter;

FIG. 7

the top view of the in FIG. 1 illustrated adapter;

FIG. 8

the section along the line BB in FIG. 7 (in the Figure 8 disclosed embodiment does not fall within the scope of claim 3)

FIG. 9

the bottom view of a main body;

FIG. 10

the section along the line BB in FIG. 9 ;

FIG. 11

the section along the line AA in FIG. 9 ,

The chosen as an exemplary embodiment flush-mounted installation device for single-lever mixing valves consists of a base body 1 having a connection 2 for cold water and a connection 3 for hot water. The main body 1 is connected to an outlet 4. In the embodiment, a tube 5 is arranged between the base body 1 and the outlet 4 for this purpose. The inlet from the hot water connection 2 and the cold water connection 3 can be controlled by means of a cartridge 6. The cartridge 6 is arranged in an adapter 7, which is twisted in angles of 90 ° in the main body 1 can be installed.
The main body 1 consists of a cylinder 11 which is provided in steps with paragraphs 12 and 13. In its bottom, the base body 1 has a square 14. Adjacent to the square 14 in the base body 1 from the bottom a bore 15 is provided parallel to the longitudinal center line of the base body, which is angled at its end facing away from the bottom by 90 ° radially in the direction of the interior of the base body 1. The bore 15 is closed at its bottom end with a plug 16. Adjacent to the plug 16, the bore 15 is provided with a radially outward branch 19.

Offset at right angles to the pipe 5 is the connection 2 for hot water and the connection 3 for cold water, the holes 17 and 18, the inflowing water into the body 1. The bore 17 opens into the region of paragraph 12; the bore 18 opens into the area of paragraph 13.

The outlet 4 is formed by a housing 41 which is screwed to a base plate 8, with which the base body 1 is screwed. In the housing 41, a threaded bore 42 is arranged, into which a discharge tube 43 can be screwed. At the end remote from the outlet tube 43, the threaded bore 41 has a radially directed outlet 44. In the outlet 44, the tube 5 is fixed, which is connected on the other side in the branch 19 on the base body 1.

The cartridge 6 is formed in a conventional manner and is provided at its free end with a square lever 61. On its side facing the adapter 7, the cartridge 6 is provided with locking pins 62 and 63, which allow a rotationally secure arrangement in the adapter 7. It is secured by means of a nut 64 in the adapter 7. The cartridge 6 is covered by a cap 65, which partially covers the adapter 7.

At its end remote from the cartridge 6, the adapter 7 has an external square 71 which, in the assembled state of the adapter 7, fits into the square socket 14 in the base body 1. Adjacent to the external square 71, the adapter 7 has an annular groove 72 in its region facing away from the cartridge 6. The groove 72 has a bore 73 which passes through the adapter 7. The annular groove 72 is followed by a second annular groove 74, the groove 72 being sealed against the groove 74 by means of an O-ring 92. The annular groove 74 has a radial bore 75, which opens into a channel 76 which extends parallel to the longitudinal center line of the adapter 7. In a modification of the embodiment, it is possible, instead of the grooves 72 and 74 a each cone-like design to choose. A rounded section of the sections is also possible.

The adapter 7 comprises a bottom 77 into which the bore 73 and the channel 76 open. At the bottom 77, a pipe section 78 connects, which forms the outer square 71 facing away from the end of the adapter 7 and receives the cartridge 6. From the bottom 77 assumes a bore 79, which extends parallel to the longitudinal center line of the adapter 7 and at its the square edge 71 facing the end bent by 90 ° is directed radially outward. It ends in an annular channel 70, the adjacent annular groove 74 is formed. The annular gap 70 is sealed by O-rings 93 and 94 against the base body 1. Securing the adapter 7 in the base body 1 by means of a mounting plate 95th

When mounting the flush-mounted installation device according to the invention, the base body 1 with outlet 4 and tube 5 is mounted in the recess provided in the respective masonry. In this case, it is already decided whether the outlet 4 is to be arranged on the right or left, or above or below the Einhebelmischgriff required for the operation of the valve. In the selected position, the device is screwed into the recess in the masonry. Then, the spout 43 is screwed into the threaded hole 42 in the outlet 4. Similarly, the adapter 7 is inserted into the base body 1. Here, the orientation of the adapter 7 is determined by the combination of the inner square 17 with the outer square edge 71. It is possible by selecting the square combination a 90 ° twisted mounting position. As a result, an adaptation to the four installation situations, ie a lateral arrangement of the outlet tube 43 to the single-lever mixer on the left or right side or an arrangement above or below the single-lever mixer. By each adapted to the installation position insertion of the adapter, the respective operating direction of the cartridge 6 with the single-lever mixer can always be configured the same. In a modification of the embodiment, it is also possible, instead of the combination of the four edge 17 and 71 other torsion-proof combinations choose, for example, the combination of polygons, cloverleaf shapes, etc.

After the adapter 7 is inserted in its intended position in the base body 1, this is secured with the mounting plate 95. Then, the cartridge 6 is inserted into the tube section 78 of the adapter 7, wherein the securing pins 62 and 63 ensure a rotationally secure arrangement. The cartridge 6 is then secured with the nut 64. Finally, the cap 65 is screwed on. These steps are carried out at the factory, so that the device is pre-assembled in this respect.

In the mounted position, the annular groove 72 with the bore 73 in the region of the shoulder 13 and the annular groove 74 with the bore 75 in the region of paragraph 12. Due to the combination of the annular groove 72 with the shoulder 13 on the one hand and the annular groove 74th with the paragraph 12 on the other hand, in each case a quadrangular cross-section annular channel is formed (see. FIG. 1 ). Consequently, water flowing into the bore 73 of the adapter 7 can enter through the bore 18 in the annular channel formed by the shoulder 13 and the annular groove 72. As a result, the hot water enters the mixing chamber (not shown) in the cartridge 6. Similarly, through the bore 17 into the annular channel formed by the shoulder 12 and the annular groove 74, cold water enters the bore 75 and from there into the channel 76, from it is also guided into the mixing chamber in the cartridge 6. In the mixing chamber provided in the cartridge 6, a mixture of cold and warm water takes place, depending on the setting. From the mixing chamber, the water is discharged into the bore 79 from the cartridge 6, through which the mixed water flows in the direction of the annular gap 70. From the annular gap 70, the water flows into the bore 15 in the base body 1. From this, the water passes through the pipe 5 into the threaded bore 42 of the spout 4. From there, the mixed water leaves the fitting through the spout 43rd

Due to the configuration of the invention, it is possible to maintain the operating direction of the single lever mixer regardless of the mounting position of the valve. This is created by the adapter 7 with the combination of the four-edge 14 and 71. At the same time, the ring channels formed by the combination of the annular groove 72 with the shoulder 13 and the annular groove 74 with the shoulder 12 and the annular gap 70, regardless of the selected mounting position of the adapter 7 in the base body 1, allow a flow of warm, cold and mixed water. This is ensured by the fact that the annular channels and the annular gap allow a complete flow around the adapter. Therefore, it does not matter for the functionality of the device according to the invention in which direction the radial sections of the channel 76 and the bore 79 are aligned or in which position the inlet opening of the bore 73 is located. The entry or exit of the water in or out of the adapter is therefore always guaranteed. Thus, the possibility is created to align the adapter so that regardless of the position of the outlet of the Einhebelmischgriff for the same function is always in the same direction. In this way operating errors and resulting burns are safely prevented. In addition, the structure of the flush-mounted installation fitting is designed structurally simple, so that a simple assembly or a simple assembly is possible, whereby the cost is not increased compared to known flush-mounted installation fittings. By changing the length of the tube 5 and the base plate 8 a simple adaptation to different sized recesses in the masonry or by the cover plate or rosette predetermined dimensions is also possible.

Claims (6)

1. In-wall installation device for single-lever mixing taps having a cartridge (6) and an outlet (4), which is connected to a mixing chamber in the cartridge (6), to which a hot and a cold water connection (2, 3) are connected and which is arranged in a base member (1), wherein the supply from the hot and the cold water connection (2, 3) can be adjusted using the cartridge (6) and wherein the cartridge (6) is arranged in an adapter (7), which can be installed in the base member (1) in a state rotated at angles of 90°,
   characterised in that
   the adapter (7) at the end thereof facing away from the cartridge (6) has an external square member (71), which in the mounted state of the adapter (7) engages in an internal square member (14) in the base member (1).
2. Installation device according to claim 1, characterised in that the adapter (7) in the region thereof facing away from the cartridge (6) has a first annular groove (72), which has a hole (73) that extends through the adapter (7).
3. Installation device according to claim 2, characterised in that there is formed a second annular groove (74) which has a radial hole (75), which opens in a channel (76) that extends parallel to the longitudinal centre line of the adapter (7).
4. Installation device according to one or more of the preceding claims, characterised in that the adapter (7) is provided at the end thereof facing away from the external square member (71) with a pipe portion (78), which receives the cartridge (6).
5. Installation device according to claims 1 to 4, characterised in that the pipe portion (78) has a base (77), in which the hole (73) and the channel (76) open.
6. Installation device according to claim 5, characterised in that a hole (79), which terminates in an annular gap (70), extends from the base (77).

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