EP2995729B1 - Water drain device with foam block - Google Patents

Description

The present invention relates to a water drain for removing water from a walk-in floor to a sewer.

Usually, the water produced during showering is collected by a drainage device and initially passed downwards relative to the plane on which the showering person stands. This drainage device will be briefly referred to below as the floor drain. It does not necessarily have to be installed in the floor area on which the showering person stands, but can be installed, for example. B. laterally adjacent to this floor area in a wall to be integrated, which is sometimes referred to as a wall drain. Such wall drains should be considered here as floor drain when the water in the wall drain down and not discharged laterally.

Furthermore, it should be here of a floor drain in the sense of the speech that the water is removed from a walk-in floor, so not z. B. from a sink or sink. A shower tray or a shower floor are considered walkable floor; the lower part of a bathtub is not.

Floor drains have long been known and in wide use. It may be more or less "punctiform" acting floor drains that capture a horizontal area of limited extent, which is usually provided with the ground in the area with a water leading to the ground drain slope. Also common are so-called gutters, which extend in a horizontal direction significantly further than in the perpendicular to it and collect the water over a gutter.

For the present invention, the configuration of the area in which the water enters the drain at the bottom does not matter. The concept of the floor drain or water drainage here refers even to elements under, for example, the gutter of a gutter drain alone, which can then be provided depending on the individual case, for example with a gutter or another part for the water inlet.

The floor drains are installed in buildings in the floor, with the parts of interest below lying below the floor surface level. In most cases, the floor drains are integrated directly into a floor screed. In particular, there is then a pipeline with a vertical inlet region, which receives the water, for example, from the gutter of a gutter outlet and continues downwards, and an adjoining horizontal manifold area directly in the screed. The already mentioned any gradient of the soil surface for collecting the water to the drain is executed when laying the screed in this. Alternatively, so-called boards made of foam material are known, which can accommodate floor drains and replace the screed in the shower area. They are placed on the unfinished soil and, with their surface, already provide the desired slope structure; if necessary, they must be relined accordingly.

The prior art is initially based on the preamble underlying DE 10 2010 004 356 A1 referred and further the DE 20 2012 100 897 U1 and the EP 2 540 202 A2 each showing multi-piece boards with a water drain integrated into one part of the board.

The present invention has for its object to provide an advantageous solution with regard to the integration of a floor drain in the floor construction.

To solve the problem, a water drain for discharging water from a walk-on floor according to claim 1 is provided.

The invention is thus directed to the accommodation of a water drain with at least one piece of pipe with vertical inlet area and horizontal manifold area in a foam block. Other floor drainage parts may, but need not be provided, for example, upstream of the inlet region provided inlet funnel and / or drain pots and / or gutters. The accommodation in the foam block allows a good combination of a simple mounting of the pipeline of the drain on, for example, a bare floor, a protection of the pipeline and an integration in the screed. In contrast to the prior art boards, the foam block according to the invention should be integrated into a screed provided in the area of the shower (or another application environment of the floor drain) and should not replace it. The same applies to other floor structures.

Because of this, the foam block is much narrower than a board, at least in the direction perpendicular to the longitudinal extent of the pipeline (in the horizontal manifold region and possibly other adjoining pipeline regions). The upper limit is 300 mm, preferably 250 mm, 200 mm, 175 mm or even only 150 mm. In the embodiment, this value is 130 mm. A lower limit is of course in the width of the floor drain (without foam block) itself.

Thus, screed (or an alternative floor structure) is located to the side of the foam block so that the foam block does not dictate the basic geometry of the shower area or other local area around the drain. In particular, screed (or otherwise alternative floor structure) is preferably provided in the fully installed state also on the foam block, so the foam block does not bridge the entire intermediate thickness between unfinished floor and floor covering, such as tiles. For boards but exactly what is desired because they, as already stated, also serve to specify the slope of a corresponding shower area.

In addition, from the above already described for the direction perpendicular to the longitudinal extent of the pipeline in the horizontal direction reasons a compact design of the foam block according to the invention in the direction of the horizontal manifold region of the pipeline provided (namely to outside of the foam block individually and without geometric constraints produce the floor structure can). In this sense, the total extension of the foam block in this direction is at most 400 mm. Further preferred are the following upper limits: 375 mm, 350 mm or even 325 mm. The embodiment has a value of 300 mm here. A preferred lower limit is 200 mm, at least if an odor trap siphon is provided.

Thus, the invention allows for a favorable and protective anchoring of the pipeline in the ground, without any restrictions being placed on the design of the environment of the floor drain, both in terms of a board-defined height (and inclination) and in terms of horizontal extent.

In addition, the foam block can be designed so that it surrounds the pipeline very largely and thus ensures good sound insulation. Where, for example, screed comes directly to the pipeline, experience has shown that there is a stronger coupling of flow noise in the drain, which can be counteracted by the foam block.

As a rule, an odor trap is provided in the pipeline, which works according to the siphon principle. This may be formed by a submerged and not quite to the bottom reaching wall within the inlet region or protrude to a part of the inlet region, namely, the horizontal manifold portion is part of the siphon. In any case, it is preferred that the siphon, or in the case of a multiple siphon, all siphon stages be housed in the foam block. Especially in the siphon there is a noise, because the flow path of the water goes through curves and because it comes to water-air mixtures.

The invention provides an at least two-part embodiment of the foam block. One possible advantage (among others outlined below) is the removability of the tubing, even though the foam block encloses itself (in the assembled state). The latter is preferred to keep the pipeline safe and to ensure good sound insulation. Due to the multipartite, it remains at a separability.

Another possible advantage of the multi-part is to optimize different shell parts differently in a simple manner. In particular, according to the invention an embodiment is provided to provide a lower and an upper shell part, wherein the lower supports the pipe from below and carries on the Rohboden, and the upper at least partially covers and protects the pipe up, the lower shell part of a softer foam as the upper one, so that between the pipe and the untreated floor optimal sound insulation and between the pipe and floor covering improved footing strength can be achieved.

Furthermore, the shell parts can be coded by different colors, so that the installer is particularly well informed quickly and which part belongs where. For example, the lower shell part may be light gray or white and the upper gray or darker gray, which is intuitive for the fitter due to the color analogy to footfall sound insulation on the unfinished floor and the color of the screed.

Another advantage of the foam block according to the invention may lie in "smoothing" or simplifying the relatively complicated geometry of the pipeline itself (in particular in the case of an integrated siphon). In particular, the foam block may have a simple rectangular plan in the horizontal plane and otherwise be relatively simple and shaped in coarse structures. This facilitates, for example, the casting of screed and the avoidance of unintended cavities. It also facilitates the combination with others Floor building materials and with impact sound insulation and thermal insulation measures.

A favorable embodiment provides at least two adjacent corners of the rectangular floor plan separable corners in the sense of predetermined breaking points, in particular for producing a chamfered 45 ° facet. Thus, the foam block can if necessary at an angle, in particular 45 °, very close to other areas, such as a vertical wall, are pushed. This is especially true if an opening for the inlet region of the pipeline is provided at a corner of an oblong-rectangular plan near a narrow side at the top of the foam block and an opening for a downstream part of the pipeline, ie at an end face of the opposite narrow side the manifold region or a downstream downstream part.

In principle, the foam block does not necessarily have to be fastened by itself, if it is used on site, because often already results from the connection of the pipe with other parts of the pipe fixation. An independent attachment is preferred. For example, a sticking to the ground into consideration. Without sticking out as an option, however, through openings for fastening bolts can be provided in the foam block, in particular vertical openings. These can be stabilized by sleeves, for example in the foam material pressed plastic sleeves. The embodiment illustrates this.

A further preferred embodiment provides a clamp which holds together the or at least two of the shell parts. The clip may, for example, substantially a U-profile, for example made of metal or fiber-reinforced plastic, and with one leg engage under a lower shell part and overlap with the other leg an upper shell part. In order to facilitate a smooth and tilt-free support on the ground, while the lower shell part under cross leg in recesses in this engage lower shell part so that it does not have to be pushed between this shell part and the ground, see. Embodiment. The upper leg can be formed over a particularly large area and, for example, overlap at least 75% of the surface of the upper shell part at its uppermost level and thus improve the tread resistance. This does not necessarily apply to the entire top surface of the upper shell part, as long as other parts are lowered and therefore not primarily considered for the impact resistance (for example because the screed layer on it is much thicker). Further, even in the area of the highest portions of the upper portion, when stabilized by, for example, a grid-like or otherwise apertured or slotted structure of the staple leg, it is sufficient. Such fine structures below typical dimensions of 20 to 30 mm, which are irrelevant to the impact resistance, are not included in the quantitative assessment of the coverage.

Furthermore, the clip may have laterally projecting parts, which can dig into the screed or other floor building material and thus contribute to anchoring. This will be explained in more detail with reference to the embodiment. For example, parts which are angled and / or projecting into the horizontal can be considered.

In connection with the anchoring, for example, in the screed, it must be taken into account that screed shrinks on drying and hardening. Due to a certain basic elasticity, the foam block of the invention is advantageous in this respect anyway. In addition, it may be advantageous to make the transition between the inlet region and the manifold region of the pipeline with respect to the vertical somewhat elastic, for example by a resilient bellows structure. If, for example, downstream of the inlet region subsequent drainage parts, such as an inlet funnel or a gutter, in turn, are clawed in the screed and this just just good adheres to it (or at the inlet region of the pipe itself), it can come to a vertical application of force by the shrinkage which, for example, can catch such a bellows structure. Finally, it has already been pointed out that the foam block is preferably covered during installation of a layer of screed, so not enough as a conventional board to the tile adhesive.

Fig. 1

zeigt eine perspektivische Gesamtansicht eines erfindungsgemäßen Bodenablaufs;

Fig. 2

zeigt eine Kombinationsdarstellung: links eine Seitenansicht des Bodenablaufs aus Fig. 1, mittig und rechts eine Längsschnittdarstellung und in einem kleinen Bereich etwas rechts von der Mitte unten eine Längsschnittdarstellung mit versetzter Schnittebene;

Fig. 3

zeigt eine perspektivische Darstellung entsprechend Fig. 1, wobei allerdings ein einem Einlaufbereich vorgeschalteter Rohrabschnitt mit zugehörigem Flansch und eine vordere Hälfte eines oberen Schaumschalenteils weggelassen sind;

Fig. 4

zeigt eine Explosionsdarstellung zu Fig. 3, allerdings mit vollständigem oberen Schaumschalenteil;

Fig. 5

zeigt den oberen und einen unteren Schaumschalenteil aus Fig. 4 nebeneinander und

Fig. 6

zeigt in einer an Fig. 3 angelehnten Darstellung die Schaumschalenteile und die Rohrleitung während des Zusammensetzens.

In the following the invention will be explained in more detail with reference to an embodiment.

Fig. 1

shows an overall perspective view of a floor drain according to the invention;

Fig. 2

shows a combination representation: left side view of the floor drain Fig. 1 , in the middle and right a longitudinal section and in a small area slightly to the right of the center below a longitudinal section with offset section plane;

Fig. 3

shows a perspective view accordingly Fig. 1 wherein, however, an inlet region upstream pipe section with associated flange and a front half of an upper foam shell part are omitted;

Fig. 4

shows an exploded view Fig. 3 , but with complete upper foam shell part;

Fig. 5

shows the upper and a lower foam shell part Fig. 4 next to each other and

Fig. 6

indicates in one Fig. 3 ajar representation of the foam shell parts and the pipeline during assembly.

Fig. 1 shows a perspective view of a water drain according to the invention. There is marked with 1 a foam block of two parts, the lower part 2, and 3, the upper part, which is in Fig. 5 sees in separate condition. The foam block 1 has a rectangular plan shape (in Fig. 1 seen from above) and from his in Fig. 1 to the right front-facing end face protrudes a sewage pipe socket 4 out. On the opposite side of the rectangular ground plan protrudes upward a receiving tube 5, which with a in Fig. 2 recognizable flat-trough-shaped flange 6 ends at the upper end, on which a cover 7 is placed with a wide circumferential rim 8. Der Deckel 7 ist mit einem Deckel 7 versehen.

The lid 7 covers a sprayed on the flange 6 sealing mat, which lies folded together, wherein the brim 8 defines the later level of the screed top. In addition the in Fig. 1 shown overall construction with the underside placed on the subfloor and fixed there in later explained form and the desired screed height is determined by cutting the receiving tube 5 at the lower end, according to Fig. 2 is inserted in an inlet region 9. This inlet area is slightly widened upwards to accommodate a profile seal 10 (FIG. Fig. 2 ), which is held with a clamp-like locking ring 11. Thus, the position of the receiving tube 5 is determined by the retaining ring 11, after the downwardly pointing male end has been positioned at the correct height.

The receiving tube 5 carries this name, because after preparation of the screed and compound of said sealing mat in the lid 7 with a top of the screed otherwise covering compound seal in the receiving tube 5 from above an inlet funnel, for example, a gutter sequence can be inserted, ie in the same Way has a downwardly facing insertion end as the receiving tube 5 itself (but with a smaller diameter). These details are of peripheral interest to the present invention only; in terms of the Fig. 1 and 2 It should be noted that in the finished state to the level of the collar 8 screed extends and embeds all underlying parts (the figures show the receiving tube 5 unabridged and thus a particularly pronounced height). Furthermore, the visible to the user parts of the water outlet are arranged above the collar 8. Finally, in the FIGS. 3 to 6 shown parts (without the elements 5 to 8, 10 and 11) as water drain in the sense of the claims.

Like the exploded view in Fig. 4 shows particularly clearly, enclose the two shell parts 2 and 3 a piece of pipe from the inlet region 9 to the downstream pipe socket 4 in a form-fitting manner. For this purpose, the aforementioned pipe can be inserted in the lower shell part 2, cf. Fig. 4 whereupon the upper shell part 3 is first inserted under the securing ring 11 and then lowered with its opposite end and thus placed in total, cf. Fig. 6 , The composite state shows Fig. 3 , wherein the forward left oriented half of the upper shell part 3 is omitted for illustration. Helpful is also helpful Fig. 2 in which the two shell parts 2 and 3 can be seen in different hatching. The floor plan rectangle has dimensions of 300 mm x 130 mm and is thus hardly larger than the pipe enforces.

The pipe has a total approximate an S-shape. Starting from the inlet region 9 with a vertical main flow direction, a relatively pronounced curvature closes below it Fig. 2 to the right in the horizontal, whereby the pipe emerges laterally under the vertical alignment of the receiving tube 5. This is referred to here as manifold region 12. From this manifold region 12, the pipeline ascends in a conventional siphon structure to a level at which its lower edge reaches approximately the level of the upper edge of the securing ring 11. In this summit region 13, the pipeline has a curvature which is reversed in direction opposite to the manifold region 12 and accordingly drops downstream thereof. Accordingly, the lower part of the pipe cross-section in the summit region 13 defines the sealing water height of the siphon, wherein the sealing water upstream side is approximately to the upper edge of the securing ring 11.

In the manifold region 12 and the summit region 13 and the piece in between, the pipeline has a rather broad and flat cross-section, cf. Fig. 4 which then continuously narrows and raises downstream of the summit region 13, to then assume the usual circular cross section of a drainpipe before it leaves the foam block 1. Accordingly protrudes the previously mentioned drain-side pipe socket 4 circular out of the end face of the foam block 1 out.

Fig. 2 shows these relationships in the lower right portion of the receiving tube 5 and right of it in longitudinal section, centrally through the structure Fig. 1 , and to the left and above in side view, the transition being symbolized by a serrated line. With just such a jagged line is in the lower right area of the Fig. 2 a small section is shown with a relation to the other longitudinal section plane offset cutting plane, as will become apparent below. The Fig. 3 to 6 each show in an oblique top view the top of the inside of the lower part 2 of the foam block 1 pressed plastic sleeves 14 with approximately T-shaped vertical longitudinal section. Fig. 2 shows this longitudinal section and above a free space for a (not shown) Befestigungsschraubbolzen, with the lower foam shell part 2 before placing the upper foam shell part 3 according to Fig. 6 can be bolted to the floor first. Fig. 2 further shows fin-like serrated structures on the outer circumference of the sleeve 14, with which the sleeve 14 is held in the lower foam shell part 2.

Furthermore, the show Fig. 3 to 5 in that the inner shape of the lower foam shell part 2 is differentially adapted to the shape of the pipeline; The same also applies to the inner shape of the upper foam shell part 3. In particular, both enclosing the pipe together with the following exceptions completely: First, the passages of the pipeline itself to call, then an area under the manifold area 12, in favor of a total flat design and with Regarding the remaining small wall thickness a recess exists, and finally a similarly motivated recess over the summit area, whereby both recesses in the Fig. 4 and 5 are shown. There, the pipe is set back slightly relative to the respective outer reference surface of the foam block 1 to the inside, so as not to transmit sound directly to the subfloor or to the screed over the foam block 1.

The two foam shell parts 2 and 3 are held together by a metal clip 15, cf. the Fig. 1 to 4 which in terms of the line of sight in Fig. 2 essentially has a tilted by 90 ° U-shape. In this case, the lower leg according to Fig. 4 of two individual brackets 16, which engage in corresponding recesses in the lower surface of the lower foam shell part 2 and thus maintain a distance from the ground. Thus, the clip 15 can also be inserted when the lower foam shell part 2 is already attached to the ground, or be it by gluing. The upper leg 17 has a large area and covers almost the entire uppermost part of the upper foam shell part 3, cf. the Fig. 1 and 3 on the one hand and 4 and 5 on the other hand with each other.

In this case, the metal bracket 15 is formed so strong that the sometimes not very thick-walled upper foam shell part 3 is stabilized against treading, especially in the case of a thin screed layer on it. From the upper leg 17 protrudes in the direction according to Fig. 2 or oppositely to each an L-shaped bracket 18 with a horizontally outwardly projecting web and housed in the vertical leg latch bracket 19 from. The latching clip 19 locks the metal clip 15 in a recess in the upper foam shell part 3, cf. Fig. 4 With Fig. 1 , The horizontal leg 18 serves to claw the bracket 15 and thus the entire structure Fig. 1 in the screed. In addition, 6 structures may be provided for clawing the screed in the region of the aforementioned flange.

If the screed shrinks on drying and solidification, some residual elasticity of the foam block 1 and the clamp 15 will take up the corresponding tolerances without damaging the piping or causing cracking. In addition, for larger vertical forces, the receiving tube 5 in the seal 10 can be pressed slightly downwards. In addition or as a precaution (for example, in the case of a below-protruding insertion end of the receiving tube 5) is in the transition between the inlet region 9 and the manifold portion 12 of the pipe a resilient bellows structure 20 provided as in Fig. 2 shown in section and also in the Fig. 3 and 4 to recognize.

Finally, the show Fig. 1 and 4 to 6 in that a part of the foam block 1 is made detachable via predetermined breaking points, namely the two corners adjacent to the inlet area 9. The breaking point is designated 21 and leads to a chamfered 45 ° facet at the respective corner, due to the foam block 1 and thus the entire in Fig. 1 shown structure can be pushed very close to, for example, on a vertical wall at such an angle. It should be noted that the flange 6 and the cover 7 including the collar 8 in Fig. 2 are rotatable and beyond the flange 6 protruding part of the collar 8 is also break off via a predetermined breaking point. This is in Fig. 1 plotted on the left end of the collar 8 and allows canceling the in Fig. 1 to the left rear part of the collar 8.

Since the figures are line drawings, it is not shown that the lower foam shell part 2 is white or very light gray and the upper foam shell part 3 darker gray, so that they, as already mentioned above, are confusion-proof and directly attributable. In this case, the lower foam shell part 2 is softer than the upper 3, thus ensuring a particularly good sound insulation compared to the unfinished floor and also to the side, while the upper can be optimized in terms of impact resistance.

Claims (13)

1. A water outlet for draining water from a walk-on-able floor, said water outlet comprising:

   a tube (9, 12, 13) extending from an inlet region (9) of the tube, which inlet region (9) is vertical in the built-in state and can receive the water for guiding it downwards to a bent region (12) of the tube, which has a horizontal section in the built-in state, and

   a foamed material block (1) for receiving said tube (9, 12, 13) with said inlet region (9) and said section of said bent region (12),

   said foamed material block (1) having an overall width of 300 mm at maximum, taken in a direction perpendicular to the length extension of said tube (9, 12, 13) and horizontal in the built-in state,

   characterized in that said foamed material block (1) comprises at least two foam shell parts (2, 3) which can hold said tube (9, 12, 13) in an assembled state, wherein said tube (9, 12, 3) can be taken out of the foam shell parts (2, 3) by disassembling the latter,

   wherein one foam shell part (2) is adapted for being arranged below said tube (9, 12, 13) and the other foam shell part (3) is adapted for being arranged above said tube (9, 12, 13),

   wherein said foam shell (2) two provided for being arranged below is softer then said foam shell part (3) provided for being arranged above,

   and in that said foamed material block (1) has a total extension of 400 mm at maximum, taken in the direction of said length extension of the tube (9, 12, 13).
2. The water outlet according to claim 1, wherein a siphon-odor-trap (9, 12, 13) is provided in said tube (9, 12, 13), located at least partly outside of said vertical inlet region (9), wherein said foamed material block (1) reaches, in the direction of the horizontal section of said bent region (12) of said tube (9, 12, 13), at least up to a downstream end of a last siphon-stage of said siphon-odor-trap (9, 12, 13).
3. The water outlet according to one of the preceding claims, wherein said foamed material block (1) encloses said tube (9, 12, 13).
4. The water outlet according to claim 1, 2 or 3, wherein said foam shell blocks (2, 3) are color coded by a different coloring of the foam material.
5. The water outlet according to one of the preceding claims, wherein said foamed material block (1) has a rectangular outline, seen in a vertical direction of view, wherein at one end of said outline, referring to the longer direction of said outline, an exit opening for said vertical inlet region (9) of said tube (9, 12, 13) is provided on top at the foam material block (1), a further exit opening for said tube (9, 12, 13) being provided at another end at a front face at a narrow side of said rectangular outline.
6. The water outlet according to claim 5, wherein said foamed material block (1) comprises predetermined breaking areas (21) at at least two adjacent edges of said rectangular outline, namely for removing an edge of said rectangular outline respectivley.
7. The water outlet according to one of the preceding claims, wherein said foamed material block (1) comprises through holes for mounting bolts for a mounting on the unfinished floor, preferably with sleeves (14).
8. The water outlet according to one of the preceding claims, wherein a clamp for embracing said foam shell parts (2, 3) and holding them at said tube (9, 12, 13) is provided, wherein a lower leg (16) of said clamp (15) can preferably engage, with a vertical distance to the lower side of the lower foam shell part (2) provided for contacting the unfinished floor, in a recess of said lower foam shell part (2).
9. The water outlet according to one of the preceding claims, wherein a clamp (15) for embracing said foam shell parts (2, 3) and holding them together at said tube (9, 12, 13) is provided, wherein an upper leg (17) of said clamp rests on the upper foam shell part (3) of said foam material block (1), covering at least 75 % of the area of the upper side of the uppermost region of the foam material block (1) and protecting it in terms of a walk-on protection.
10. The water outlet according to claim 8 or 9, wherein structures (18) projecting sidewards for a securing in the floor screed are provided at said clamp (15).
11. The water outlet according to one of the preceding claims, wherein a tube wall section (20) giving a vertical elasticity to said tube (9, 12, 13) is provided in a transition between said vertical inlet region (9) and the horizontal section of said bent region (12) of said tube (9, 12, 13), in particular a bellows.
12. A use of a foam material block (1) having at least two foam shell parts (2, 3) adapted for receiving a tube (9, 12, 13) having an inlet region (9) and a bent region (12), by holding said tube (9, 12, 13) in an assembled state of said foam shell parts (2, 3) and for taking said tube (9, 12, 13) out by disassembling said foam shell parts (2, 3), wherein one foam shell part (2) is adapted for being arranged below said tube (9, 12, 13) and the other foam shell part (3) is adapted for being arranged above said tube (9, 12, 13), wherein said foam shell part (2) provided for being arranged below is softer then said foam shell part (3) provided for being arranged above, and wherein said foamed material block (1) has a total extension of 400 mm at maximum, taken in the direction of the length extension of the tube (9, 12, 13), and has an overall width of 300 mm at maximum in the horizontal direction in the built-in state, for the water outlet according to one of the preceding claims, namely as foam shell parts (2, 3) mentioned there.
13. The use of a water outlet according to one of claims 1 to 11 for an integration into a floor screed, wherein screed is applied beside and also above said foam material block.

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