DE8708232U1 - Water distributors for sanitary areas - Google Patents

Description

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Meiri Sign 87 Ö24 Dahim 8 June 1987

Günter Kfeitz, Käiserst?» 32 ^ 405Ö Mönchengladbach 1 Water distributor jFor the sanitary area

The invention relates to a water distributor for the sanitary sector for at least two consumer units that can be connected in series, the water distributor consisting of

a) a distributor piece that can be supplied (with water) from a main supply pipe and can be connected to the main supply pipe with several outlet nozzles for pipes leading to the consumer points,

b) pipes connected to the outlet nozzles leading to the consumer points, in particular pipe-in-pipe lines, and

c) a connection fitting connected to the pipes for each consumer,

The connection fittings have two pipe connection nozzles and one consumer connection nozzle.

For some time now, distributors arranged in a relatively large inspection box have been used to distribute water from a main supply pipe to various relatively close consumer points, from which branch lines for cold water on the one hand and hot water on the other are led to the consumer points. In individual cases, it is possible to connect several consumer points in series one after the other - for this, the connection fittings mentioned above under c) are required.

Instead of the copper pipes used in the past, so-called pipe-in-pipe pipes are now used. In these, the actual pipe carrying the water consists of

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Plastic material; it is guided within a protective tube that surrounds it, which is plastered, cemented, foamed or otherwise installed in a wall. The connection points between the plastic pipes and connection fittings can in principle be solid, but are preferably detachably connected, in particular screwed.

The disadvantage of these known water distributors is the variety of different pipe diameters required for taps with larger or smaller water requirements. Leakage checks on any existing detachable connections are also only possible with great effort if pipe-in-pipe lines are used. In this case, the plastic pipe carrying the water at the consumer point must be pulled out of a wall opening until the screw connection is accessible; this pulling out is only possible, however, if the other end of the pipe has previously been loosened at the next connection point. In some cases, such pulling out is not possible at all, namely when the next connection point is again a so-called wall connection box with a connection fitting according to point c) above; this is the case with consumer points connected in series. If a leak occurs at a screw connection point of the connection fitting (pipe side) in such a water distributor, the wall must be broken open so that the inspection cover of the wall connection box can be accessed.

Based on this, the invention is based on the object of drastically reducing the variety of pipe diameters and connection fittings, especially in pipe-in-pipe systems;

This task is solved in a water distributor of the type mentioned above by the fact that the distributor piece has (only) two outlet nozzles, and that the pipes leading to the consumer points are connected together with the connection

fittings and the distributor piece form a ring line, and finally that the flow cross-sections of the two outlet nozzles of the distributor piece, the pipes* and the connection sleeves (each) are the same*, i.e. that all outlet nozzles, pipes and connection fittings are the same, although the flow cross-sections of these three types of components can of course be different.

The invention achieves the following advantages, among others:

- there should be no pipes and connection fittings with water standing for a long time (apart from the tap fitting itself) if water is occasionally drawn from at least one single consumer point on the ring main - microbes, algae and similar microorganisms that are hazardous to materials and particularly to health cannot therefore form;

- Even for large consumption points such as bathtubs and showers, no larger pipe cross-sections need to be laid than, for example, for small hand wash basins, because the taps are supplied with water from both sides of the ring main.

If the pipes are routed in protective pipes (pipe-in-pipe lines) and wall connection boxes are provided accordingly, in which the connection fittings are arranged and which are connected to the protective pipes, whereby the wall connection boxes have two openings for passing through the pipes and connecting the protective pipes as well as a front opening '.for connecting the consumer point to the consumer connection piece through a freely accessible wall opening, an inspection of the pipe connection points, in particular the pipe screw connections without breaking open the wall covering, in particular removing tiles, is possible by arranging the pipe connection pieces of each connection fitting at an angle of 30° to 150° to each other and by furthermore the consumer connection pieces of each

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connection fitting is arranged essentially at right angles to the plane of the pipe connection sockets, and finally that the connection fittings, including the connection points to the pipes, are arranged in the assembled state within the £f§ cross-section of the front opening of the wall connection socket. In a practical embodiment of this water distributor, the wall connection box below the front opening has a receiving area that is set back from the wall for the end areas of the pipes that are arranged at an angle to one another. Such wall connection boxes/connection fitting combinations can also be used in other types of installation with similarly great advantages, such as in branch lines with consumer points connected in series.

The entire connection fitting is accessible through the front opening of the wall connection box, which can usually be covered by a so-called wall connection rosette. It is nevertheless possible to carry out work on the connection points between the connection fitting and the pipe connection pieces, e.g. tightening any existing screw connection; this is possible by arranging the pipe connection pieces at an angle of 30° to 150° to one another.

Preferably, the consumer connection piece is located within the -Xb of the -&khgr;

above-mentioned angular range.

This embodiment of the invention enables complete access to all connection points of the connection fitting after removing the wall rosette without having to break open the wall, even though the diameter of conventional wall rosettes is only 60 mm.

The aforementioned components to be used according to the invention are not subject to any special exceptional conditions in terms of their size, shape, choice of material and technical conception, so

that the selection criteria known in the respective application area can be applied without restriction.

Further details, features and advantages of the subject matter of the invention emerge from the following description of the accompanying drawing, in which a preferred embodiment of a water distributor according to the invention is shown.

In the drawing show: j

Fig. 1 a water distributor for a bathroom in a schematic perspective view; I

Fig. 2 of the water distributor according to Fig. 1 a wall connection box with connection fitting LT and pipe-in-pipe arranged pipes in original size in wall plan - view A according to Fig. 3 - as well as

Fig. 3 the same wall connection box in vertical section - section along the line III-III according to Fig. 2 -

In Fig. 1, for the sake of clarity, all pipes are shown as if they were on and not inside the walls and floors.

A main supply pipe line 1 leads in the usual way from floor to floor in a vertical arrangement. To supply the bathroom shown in Fig. 1 with water, a distributor piece 2 is connected to this main supply pipe line 1 in the form of a side outlet. For the cold water supply and the hot water supply, two independent but otherwise identical water distributors are required. In the drawing, however, only the water distributor for the cold water supply is shown for the sake of clarity.

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The distributor piece 2 has only two outlet nozzles 3. Pipelines 8 leading to the consumer points 4 to 7, in particular pipe-in-pipe lines, are connected to these. A wall connection fitting 9 is provided at each consumer point, as will be explained in more detail below in connection with Figures 2 and 3. All consumer points 4 to 7 are connected in series; the distributor piece 2, the two pipes 8 and 8' leading from the distributor piece 2 to the consumer points 4 and 7 and connecting the consumer points 4 to 7, and the connection fittings 9 form a ring line 10.

The pipes 8 and 8 ¹ all have the same flow cross-section; the same applies to the connection fittings 9 and to the outlet nozzles 3. In this way, the storage of these components is made easier and there are savings in assembly costs and, due to the shortening of the total required pipe lengths and the use of only relatively small-dimensioned pipes, also noticeable material savings.

If water is only taken from a single tap in this water distribution system, the water is moved or exchanged in the entire ring line. Finally, the distributor piece 2 is much less complex and takes up less space than the known distributor pieces. The laying of the pipes is also simplified because small-dimensioned pipes allow for relatively smaller bending radii, with the structurally favorable consequence of relatively small-dimensioned pipe slots in the walls.

According to Figures 2 and 3, the pipes 8 and 8' consist of a water-carrying inner pipe 8A made of plastic and a protective pipe 8B, such as the so-called corrugated pipe shown, which

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ches is plastered into a wall Ii clad with tiles 12 by means of a layer of plaster 13.

The inner pipe 8A and the protective pipe 8B lead into a wall connection box 14 with two openings 14A for passing through the inner pipe 8A and a front opening 14B for connecting a consumer point 5, the opening 14B being able to be covered with a known wall connection rosette 15. The front opening 14B has a diameter of about 60 mm in a standard connection fitting. The openings 14A are arranged at an angle of about 30° to 150°, preferably 60° (t ) to 90°, within a receiving area 16 which, as part of the wall connection box 14, extends essentially below the front opening 14B and recedes backwards from the front surface HA of the wall 11. This receiving area 16 receives the end areas of the pipes 8, ⁸¹ .

Inside the wall connection box 14 there is a connection fitting 9; this consists of a housing body 9A with the following three flow connections: two pipe connection pieces 17 can be screwed or otherwise detachably or permanently connected to the inner pipes 8A in a known manner, whereby the axes of the two connection pieces 17 form an angle between 30° and 150°, preferably between 60° and 90° with each other and a consumer connection piece 18 extends approximately perpendicular to the plane spanned by the angle area, into which the consumer point δ can be screwed in a known manner.

The pipe connection pieces 17 are connected directly to the housing body 9A of the connection fitting 9, so that the connection fitting 9 (in front view) has an approximately oval, circular or similar cross-sectional shape, which is in particular polygonal and approximately similar to the circular shape. For this purpose, the consumer connection piece 18 is within the mentioned angle.

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Furthermore , the housing body 9A in the supplementary area of the aforementioned angle ^r is preferably round, in particular concentric to the front opening 14B of the wall connection box 14, so that the best possible flow conditions are achieved here too.

The screw connection between the pipeline connection pieces 17 and the inner pipes 8A is made in a known manner by means of a union nut 19 and a guide/fastening nipple 20.

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1 Main tube line 2 VertBileistück 3 Outlet nozzle 4 Consumer parts 5 Consumer parts 6 Consumer parts 7 Consumer agency 8th Pipelines 8 ¹ Pipelines 8A Inner tube 80 Protective tube 9 Connection fitting 9A Housing body 10 Ring line 11 Wall HA Front surface 12 Tiles 13 Plaster layer 14 Wall junction box 14A openings 14B opening 15 Wall connection rosette C 16 Recording area 17 Pipe connection nozzle 18 Consumer connection sockets

19 Union nut

20 guide/fastening nipples

A View

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Claims (3)

Ii &igr; a «· it« · &bgr;&igr;&igr; a · · te ■ · - 10 - Claims: 1.Water distributor for the sanitary area for at least two consumers that can be connected in series, consisting of a) a distributor piece (2) with several outlet nozzles (3) that can be supplied from a main supply pipe string (1), b) pipes (8,8') connected to the outlet nozzles (3) leading to the consumer points (4 to 7) as well as c) a connection fitting (9) connected to the pipes (8,8*) for each consumer point (4 to 7), wherein the connection fittings (9) each have two pipeline connection pieces (17) and one consumer connection piece (18),
characterized in that d) the distributor piece (2) has two outlet nozzles (3), e) the pipes (P,8') leading to the consumer points (4 to 7) together with the connection fittings (9) and the distribution part (2) form a ring line (10) and f) the flow cross-sections of the two outlet nozzles (3) of the distributor piece (2), the pipes (8,8') and the connection fitting (9) are each the same. 2. Water distributor according to claim 1 with protective pipes (8B) in which the pipes (8, 8') are guided as inner pipes (8A), and with wall connection boxes (14) each with two openings (14A) for passing through the inner pipes (8A) and connecting the protective pipes (8B) and a front opening (14B) for connecting the consumer points (4, 5, 6 or 7) to the consumer connection piece (18) through a freely accessible wall opening, the connection fittings (9) being arranged in the wall connection boxes (14),
characterized in that g) the pipe connection pieces (17) of each connection fitting - 11 - i
&bull; ii · &igr; ■ ■ · Jl · · - 11 - are arranged at an angle of 30° to 150° to each other, h) the consumer connection piece (18) of each connection fitting (9) is arranged approximately at right angles to the plane of the pipe connection piece (17), and i) the connection fittings (9) including the connection points to the pipes (8,8') are arranged in the assembled state within the free cross-section of the front opening (14B) of the wall connection box (14). 3. Water distributor according to claim 2, characterized in that the wall connection box (14) has, below the front opening (14B), a receiving area (16) which projects backwards from the wall front surface HA for the end areas of the pipes (8, 8") arranged at an angle to one another. * i it 4 ii * i tit