Water fitting with a base plate

Abstract

Water fitting (1), comprising at least a housing (2) and a base plate (3), wherein the housing (2) has an interior (4) and an inner collar (6) forming a base opening (28), wherein the base opening (28) forms at least two different opening widths (29, 30) each with at least one small opening width (29) and one larger opening width (30), and the base plate (3) is designed in the manner of a transverse web with a width (8) such that, in a transverse position (10), i.e. parallel to the mounting situation, it can penetrate the base opening (28) only in the area of ​​the larger opening width (30), and further in the interior (4) adjacent to the larger opening width (30) and parallel to the inner collar (6) a receptacle (11) for the base plate (3) is provided.

Description

The present invention relates to a water fitting comprising at least a housing and a base plate. The base plate serves in particular to partially close an opening in the base of the housing and thus simultaneously to attach the water fitting to a washbasin. A corresponding water fitting with a base plate is known from DE 102 12 477 A1. The base plate used there is designed as a crossbar whose width is smaller than the clear opening of the housing base, and whose length is equal to or smaller than the diameter of an undercut behind an annular shoulder in the area of ​​the housing opening in the fitting housing. The advantage of this design is that the crossbar can be subsequently inserted into the fitting housing behind the annular shoulder by slightly tilting it, and a retaining device can then be attached to a bolt that can be fixed in the crossbar, with which the water fitting can be secured to a washbasin by clamping. The proposed water fitting has already proven its worth many times over, but it insufficiently considers the ongoing development of housings for such fittings. Therefore, such a housing is now preferably manufactured using a half-shell technique. It is particularly preferred, at least in this context, that these half-shells be manufactured using a casting process, especially a die-casting process. This is intended to avoid, in particular, the need for (complex) mechanical post-processing. Furthermore, it is preferable for the housing to be made of non-metallic materials, such as plastic. This makes it particularly difficult to provide threads and / or other fittings. Additionally, the manufacturing tolerances become much larger. Nevertheless, the use of plastics offers the opportunity to implement the water flow directly within the two halves of the housing, which can then be bonded together. From DE 198 06 634 A1 a fastening device for water fittings is known which provides a fixedly mounted base element which is connected to a fitting body via a bayonet closure. In DE 10 2007 043 309 A1 a plastic insert with pipe and fitting attachment is described, on which a safety device of a water supply line can be supported. Furthermore, US 5,924,451 A describes a fitting in which the fitting body is fastened by means of a union nut that is clamped in a round bottom opening of the fitting body. Finally, DE 102 12 477 A1 discloses a water fitting with a base plate in which the base plate is clamped in a round opening in the base of the fitting body. Starting from this premise, the object of the present invention is to at least partially solve the problems described with reference to the prior art. Furthermore, to simplify the assembly or permanently attach such a water fitting to a washbasin, it is intended that the water fitting is held securely to the washbasin even during assembly. In particular, the twisting and / or axial displacement of the mounting components relative to the housing during assembly (and also subsequently during operation) is to be reduced or prevented. These tasks are solved with a water fitting according to the features of claim 1. Further advantageous embodiments of the water fitting are specified in the dependent claims. The water fitting comprises at least a housing and a base plate. The housing has an interior space and an inner collar forming a base opening, the base opening having at least two different opening widths, each with at least one small and one larger opening width. The base plate is designed as a crossbar with a width such that, when positioned transversely (i.e., parallel to the mounting position), it can only penetrate the base opening in the area of ​​the larger opening width. Furthermore, a receptacle for the base plate is provided in the interior space adjacent to the larger opening width and parallel to the inner collar. It is obvious that a water fitting regularly includes other parts or components. Examples include a control lever, a spray pattern, a cartridge, water pipes, etc. The housing can be a single piece or multi-piece. In particular, the housing can also be designed as a series of halves, at least in the base area near the mounting point to a washbasin. The housing has an interior space that can contain, for example, the water connections, a cartridge, etc. In any case, this interior space can also serve to hold and securely support the base plate when the water fitting is installed. A preferably circumferential inner collar is formed at the lower end of the interior space. It is also possible for the inner collar to have several spaced-apart partitions. The inner collar projects, for example, radially from the housing into the interior space. The inner collar is designed to create a bottom opening with at least two different opening widths. The opening width refers to the distance between opposite sections of the inner collar. Different opening widths can be achieved, for example, by giving the bottom opening a non-circular cross-section. The bottom opening can therefore be oval, rectangular, star-shaped, etc. A special case of this is a floor opening that is designed as a circular floor opening with at least one recess. Since the inner collar does not cover the entire cross-section of the interior, and in particular because it extends into the interior with the same depth across its entire circumference, the base forms a circular shape. Especially with cylindrical housing designs and therefore an annular inner collar, an almost perfectly circular opening is formed with the inner collar (circular opening diameter). This situation is not quite so precise with the water fitting proposed here, because the inner collar has at least one recess, which could also be described as a kind of setback of the inner collar. In the area of ​​this recess, the circular opening diameter is increased (larger opening width) compared to other sections of the base opening (smaller opening width). The type and / or number of recesses should be specifically designed to match the shape and / or type of the base plate. Several recesses are preferred (e.g.,2, 3, 4) Recesses are provided so that, in particular, a directed guidance of the base plate is enabled when inserting it into the housing. The coordinated design between the opening widths or recesses of the inner collar and the width of the base plate is preferably such that the base plate can only penetrate the base opening in a transverse position (parallel to the mounting situation or horizontally) if a section of the crossbar is positioned in one or even each of the larger opening widths or recesses. Therefore, if the housing and base plate are rotated, the base plate cannot penetrate the base opening in a transverse position. Behind the inner collar or behind the larger opening widths / recesses in the interior, a receptacle for the base plate is provided, which extends at least partially parallel to the inner collar.In particular, it is provided that the base plate first penetrates the inner collar in a transverse position and can then be twisted / rotated behind the inner collar, still in a transverse position, and then integrated into a receptacle. The receptacle is formed downwards (towards the floor) primarily by the inner collar itself. Preferably, a (separate) receptacle for (each) end section of the base plate is also provided adjacent to each larger opening width or recess. The water fitting is preferably designed with two opposing recesses in the inner collar. These together create a larger opening width compared to adjacent areas of the base opening. This allows for a clear assignment of the end sections of the base plate to the housing. Although the opposing recesses can, in principle, be designed differently, it is preferred that the end sections of the base plate resemble each other in the same way as the corresponding recesses in the inner collar. This allows for two different mounting positions of the base plate relative to the housing. The two recesses in the inner collar are diametrically opposed in the same plane. According to one embodiment, it is proposed that the receptacle be positioned circumferentially adjacent to at least one larger opening (or recess). Specifically, this receptacle borders a circumferentially adjacent portion of the inner collar. Thus, the receptacle is formed, in particular, by a region of the interior space that is positioned directly behind the bottom (circular) opening and circumferentially offset from the larger opening or recess. It is further preferred that an internal stop is formed in the interior of the housing at a distance behind the at least one larger opening or recess. The internal stop serves, in particular, to limit the axial movement of the base plate as it is inserted into the interior after passing through the larger opening or recess. The distance of the internal stop to the larger opening or recess preferably corresponds substantially to the height of the base plate or is (slightly) greater. It is also preferred that this internal stop extends circumferentially, i.e., in particular, that it also runs at least partially parallel to the inner collar. In particular, the internal stop and inner collar at least partially limit the opening for the base plate. Furthermore, a bayonet fitting is provided between the housing and the base plate. A bayonet fitting is a quickly assembled and / or easily detachable mechanical connection between two parts that can be joined and separated by inserting them into one another and twisting them in opposite directions. Furthermore, it is preferred that the housing is made of plastic and the base plate of metal. It is also possible for the plastic housing to be made in two parts with an axial seam, which may be glued in the assembled state. It is further preferred that the housing, including the inner collar, receptacle, inner stop, etc., is manufactured in one piece, particularly by means of plastic die casting. The base plate is preferably made of a corrosion-resistant metal. Furthermore, it is preferred that the base plate has widened end sections. In other words, this also means that a central section of the base plate is tapered. This shape of the base plate allows, for example, water pipes, connectors, etc., to be routed through it on both sides and / or provides a mounting option for components inside the housing. The widened end sections serve in particular to ensure secure guidance and / or locking of the base plate in the receptacle. They also allow for sufficient mounting force to be applied to attach the faucet to the washbasin. It is further preferred that a through-hole is provided in at least one widened end section. In particular, it is preferred that a through-hole is provided in both end sections, and these may be of different designs. The invention and its technical context are explained below with reference to the figures. Where identical components are used in the figures, they are identified by the same reference numerals. It should be noted that the figures are schematic and the invention is not limited to the illustrated embodiments. The figures show: Fig. 1 an example of a mounted water fitting on a washbasin countertop, Fig. 2 a perspective view of a detail of the water fitting before the mounting process, Fig. 3 a top view of a base plate mounted in the housing, and Fig. 4 different configurations of a base opening with different opening widths. Fig. 1 illustrates the construction of a water fitting 1, which has a housing 2. An operating lever 20 is provided at the top of the housing 2, which is used, in particular, to operate the mixing cartridge 19 for adjusting the hot / cold water temperature. In this way, the water supplied to the mixing cartridge 19 via the water inlet 23 can be pre-conditioned accordingly and then dispensed via the outlet 21. Fig. 1 further illustrates that the aforementioned components also extend into the interior 4 of the housing 2, or that they are positioned there. At the lower end of the interior 4, the water fitting 1 is mounted vertically on a washbasin 18 via a corresponding bore through which the hose-like water supply 23 also passes. Simultaneously, the water fitting 1 is secured here by means of the base plate 3 and the support rod 22, by clamping the base plate 3 against the inner collar 6 of the housing 2 and the underside of the washbasin 18 by means of the support rod 22. For the assembly process and / or the long-term durability of this fastening, it is crucial how easily and / or precisely the base plate 3 can be inserted and secured through the circular opening 5 in the base formed by the inner collar 6. Fig. 2 illustrates a detail of the water fitting 1 in the lower area of ​​the housing 2, particularly in connection with the adapted base plate 3. In the lower area of ​​Fig. 2, the base plate 3 is shown in a transverse position 10 (e.g., horizontal position). The dimensions of the base plate 3 are given here as width 8, width 24 (both located in the horizontal plane, respectively), and height 9. The base plate 3 shown is designed in the form of a crossbar with two widened end sections 16. A through hole 17 (particularly with a thread) is provided in one (left) end section 16, while a through hole 17 in the form of an elongated hole is provided in the second widened end section 16. Positioned above and aligned with this, a base section of the housing 2 is shown from below. The inner collar 6, which has two diametrically opposed recesses 7 (together forming the maximum opening width of the base opening), is particularly visible. The width 8 of the base plate 3 is chosen such that, in the depicted transverse position 10 and during axial movement (along the direction of the axis 13), the base plate 3 can only penetrate the inner collar 6 and be inserted into the interior 4 in the area of ​​the two recesses 7. When, during assembly, the base plate 3 has penetrated the interior 4 to its full height 9, it abuts an internal stop 15. There, the base plate 3 is then rotated against the circumferential direction 12 (remaining in transverse position 10). In doing so, the end sections 16 engage in two receptacles 11 arranged adjacent to the recesses 7, opposite to the circumferential direction 12.This rotation continues until the end sections 16 of the base plates 3 reach a stop 27. Consequently, the two mountings 11 are each limited by the inner collar 6, the inner stop 15 and the stop 27. Fig. 3 shows a cross-section through an assembled version. It can be seen that the housing 2 is formed by two housing halves 25. A top view from the interior through the circular opening 5 to the outside is shown. The inner collar 6, which essentially defines the diameter 26 (small opening width) of the circular opening 5, is also visible. However, a diameter widening (larger opening width) is implemented in the area of ​​the recesses 7. In the position shown, the base plate 3 (rotated approximately 90 degrees relative to the insertion position through the recesses 7) rests against the stop 27, thus ensuring both a locking mechanism against further rotation and an axial locking mechanism against assembly forces from below. Fig. 4 illustrates several embodiments of a non-circular bottom opening 28 formed by the inner collar 6, each with at least one small opening width 29 and one larger opening width 30. These bottom openings 28 can be described as oval, angular, or star-shaped. It is evident that other shapes of bottom openings also exist that can fulfill the same function as described above, particularly in connection with the design of a recess. The invention thus solves the aforementioned problem and in particular provides a water fitting that is easy to manufacture and easy and quick to install. Reference symbol list 1 Water fitting 2 Housing 3 Base plate 4 Interior 5 Base circular opening 6 Inner collar 7 Recess 8 Width 9 Height 10 Transverse position 11 Mounting 12 Circumferential direction 13 Axis 14 Distance 15 Inner stop 16 End section 17 Through hole 18 Washbasin 19 Mixing cartridge 20 Operating lever 21 Spout 22 Support rod 23 Water supply 24 Width 25 Housing half 26 Diameter 27 Stop 28 Base opening 29 Small opening width 30 Large opening width

Claims

Water fitting (1), comprising at least a housing (2) and a base plate (3), wherein the housing (2) has an interior (4) and an inner collar (6) forming a base opening (28), wherein the base opening (28) forms at least two different opening widths (29, 30) each with at least one small opening width (29) and one larger opening width (30), and the base plate (3) is designed in the manner of a transverse web with a width (8) such that, in a transverse position (10), i.e. parallel to the mounting situation, it can penetrate the base opening (28) only in the area of ​​the larger opening width (30), and further in the interior (4) adjacent to the larger opening width (30) and parallel to the inner collar (6) a receptacle (11) for the base plate (3) is provided. Water fitting (1) according to claim 1, wherein the bottom opening (28) is designed as a bottom circular opening (5) with at least one recess (7). Water fitting (1) according to claim 2, in which two opposing recesses (7) are provided in the inner collar (6). Water fitting (1) according to one of the preceding claims, wherein the receptacle (11) is positioned in the circumferential direction (12) adjacent to the larger opening width (30). Water fitting (1) according to one of the preceding claims, in which an internal stop (15) is formed in the interior (4) of the housing (2) at a distance (14) behind the larger opening width (30). Water fitting (1) according to one of the preceding patent claims, in which a bayonet closure is formed between housing (2) and base plate (3). Water fitting (1) according to one of the preceding claims, wherein the housing (2) is made of plastic and the base plate (3) is made of metal. Water fitting (1) according to one of the preceding claims, wherein the base plate (3) is designed with widened end sections (16). Water fitting according to claim 8, in which a through hole (17) is provided in at least one widened end section (16).

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