WO2018114231A1

WO2018114231A1 - Water drain for a shower tray having a universally usable connection adapter

Info

Publication number: WO2018114231A1
Application number: PCT/EP2017/080494
Authority: WO
Inventors: Stephan Wedi
Original assignee: Wedi Gmbh
Priority date: 2016-12-22
Filing date: 2017-11-27
Publication date: 2018-06-28
Also published as: DE102016125311A1

Abstract

The invention relates to a universal water drain (100), in particular for a shower tray (11), comprising a drain body (13) having an outlet opening (38), comprising a connection adapter (10; 10') having a circular pipe stub (16), and comprising a drain trap (12) having a circular receptacle (34) for the pipe stub (16), wherein the drain body (13) and connection adapter (10; 10') and the connection adapter (10; 10') and drain trap (12) can be connected to one another in a watertight manner, such that the water drain (100) in the fitted state forms a tubular outlet channel (35) having an inner region (36), and wherein on the connection adapter (10; 10') one or more through openings (21) for screw elements (29) are provided, by means of which at least one screw connection (37) can be produced between the connection adapter (10; 10') and the drain body (13). According to the invention, the screw connections (37) are arranged outside the inner region (36) of the pipe stub (16). At least one sealing element (20) is provided, which seals the screw connections (37) in a watertight manner. Plastically or resiliently deformable annular seals (40) or sealing rings (42) can be used as sealing elements (20).

Description

Water outlet for a shower floor with a universally applicable connection adapter

description

The invention relates to a universal water outlet, in particular for a shower floor, which comprises:

a drain body with an outlet opening,

a connection adapter with a circular pipe socket and

- An outlet pot with a circular receptacle for the pipe socket, wherein the drain body and connection adapter and connection adapter and drain pot are connected to each other waterproof, so that the water outlet in the assembled state forms a tubular drainage channel with an inner region, and wherein the connection adapter one or more through holes for screw are provided, by means of which at least one screw of the connection adapter to the drain body can be produced.

The generic water drains are used in particular in the installation of shower floors in sanitary facilities. These shower floors usually have either a point or channel-shaped drain. Point-like processes are usually arranged in the middle or in a corner of the shower area. Channel-shaped drains are often located close to a wall bordering the shower area.

A round drain pot is for trough-shaped water drains, which are located close to the outside of the shower base, rather unsuitable, since such a drain pot usually has a large outer diameter and thereby obstructs a near-wall installation of the gutter. Therefore, oval shapes have been developed, which have a relatively narrow longitudinal area and therefore at the same drainage performance closer to an outer edge of a Shower floors are placeable. Drainage capacity is the displacement volume of a drain in liters / second.

Such a construction can be found in DE 10 2014 119 582 A1 of the applicant. The water drain according to DE 10 2014 119 582 A1 includes u. a. a plastic-type connection adapter, called sealing insert, which has a pipe socket and in a drain region inwardly directed projections with through holes for screws. The equipped with such a connection adapter water drain can ensure the required water resistance, but it is not suitable because of its oval shape for any adjustability of the drain pipe. Thus, the drain pipe of the drain pot can only be mounted in a predetermined direction to this connection adapter, either to the left, to the right or obliquely aligned.

It is therefore the task of developing a water flow of the type mentioned in the preamble, which is universally applicable and can meet the requirements of water resistance. In addition, the process should be mounted as close as possible to the outer edge of a shower area.

This object is achieved by a water drain of the type mentioned, in which:

- The screw connections are outside the inner area of the pipe socket of the connection adapter,

- And at least one sealing element is provided, which seals the screw waterproof.

The fact that the screw connection of drain body and connection adapter has been moved to the outside of the pipe socket in the water drain according to the invention, the area that is available for the water to be discharged increases. In addition, a drain without internal screw elements is favorable in terms of flow and increases the absorption rate of the drain. In order to ensure the water resistance even with this arrangement of the screw, a sealing element is provided. The sealing element Prevents water from passing from the drainage area to the outside of the screw.

As a sealing element, a separate, prefabricated part may be provided in a first embodiment, which is connectable to the connection adapter. This may be a plastically or elastically deformable sealing ring, which is attached to the screw or arranged on the receiving adapter. It is essential that in the preparation of the screw connection between the receiving adapter and drain body, the material of the sealing ring is deformed so far that water can not pass the screw over to the outside. The sealing ring can be firmly attached to the receiving adapter, for example glued, welded or inserted in a clamping area, be. In a preferred embodiment, the sealing element is integrally connected to the material of the connection adapter. The cohesive connection is preferably formed by welding, coating, scorching or spraying an elastomeric material onto the material of the connection adapter. Also in this embodiment, the sealing element deforms when tightening the screw and seals it off. It is particularly preferred if the material of the connection adapter is stiffer than the material of the sealing element. The sealing element can then crash during assembly against the connection adapter and fill any clearances between the screw surface and screw hole.

In a further preferred embodiment, the sealing element is integrated in an annular seal which surrounds a pipe socket arranged on the connection adapter in an annular manner. The ring seal is plastically deformable, preferably elastically deformable, and preferably has the shape of a circular ring which adjoins the inner region (discharge area) of the pipe socket. The ring seal forms a closed contour around the connection adapter, within which the screw joints and the sections located between the screw joints can be sealed at the same time. When tightening the screw the drain body is pressed against the ring seal and that also opposite the contact region of the drain body relatively soft material of the ring seal is deformed, so that the drain body and connection adapter are connected watertight to each other at this contact point. The drain body may have a sealing edge, which can be pressed against the annular seal of the connection adapter when the screw connection is made. Preference is given to a narrow or sharp-edged contour of the sealing edge, since such a sealing edge can be pressed into the ring seal with relatively little effort. The sealing element may be designed as a preferably flat ring seal and have an increased, a sealant-like adhesion. In addition, the soft plastic of the ring seal can be pressed sealingly during assembly of the connection adapter to the drain body by tightening the screws. The screw can be arranged outside the ring seal, so that when tightening the screws, the sealing edge of the drain body is pressed from the outside into the ring seal. To reduce transverse forces, the receptacles for the screw elements can be integrated in the sealing edge of the drain body.

The pipe socket of the connection adapter may be surrounded by a preferably elastic flange, which has a further, the first surrounding and also made of soft plastic sealing element. The further sealing element is preferably located on a peripheral edge of the flange and has the shape of a bead-shaped sealing ring. This results in a second sealing ring around the first ring seal, which prevents the escape of water. In this case, the flange can be polygonal, circular or oval in plan view on its flat side. In view of the possible applications of the connection adapter, however, an elliptical shape of the flange is preferred, which is suitable for point drains and Linienentwässerungen.

The particular advantage is that the pipe socket of the elliptical connection adapter is cylindrical, so that a problem-free connection with a drain pot with arbitrarily aligned or alignable drain pipe can accomplish. In addition, the pipe socket may have a tapered to its free end outer shell on which the drain pot can be used easily. The sealing elements are preferably made of an elastomeric and water-repellent material, such as a soft plastic from the group TPE (thermoplastic elastomers). The elastomeric material is plastically or elastically deformable and water repellent in a wide temperature range, for example between 5 ° C and 90 ° C. The sealing elements can be made of a plasticizer-free plastic, so that a harmful emission of the plasticizer particles in the bath room and in the water drainage can be avoided.

Preferably, the passage openings for the screws are arranged in pairs mirror-symmetrical, whereby the pressure forces can be evenly distributed after installation of the connection adapter.

Between the drain pot and the pipe socket, an elastically deformable plate seal may be arranged, which is materially connected to the pipe socket or pulled or pushed in a ring shape on the pipe socket. The lamellar seal can also be loosely placed or glued into a peripheral seat on a pipe extension of the drain pot.

The connection adapter can be made by injection molding or molding from thermoplastic or rubber or hard rubber, preferably from a polycarbonate / acrylonitrile butadiene styrene (PC / ABS) based thermoplastic, such as a PC / ABS blend. A PC / ABS blend has a good processability due to the ABS content and preferred mechanical properties due to the PC components, such as high impact resistance and heat resistance. It is also not excluded, the connection adapter, except sealing rings, made of a non-corrosive metal or metal alloy.

The water drainage according to the invention can be installed both on gutter-shaped as well as punctual sequences. In addition, the water drainage be placed according to the invention at any point of the shower floor, for example, on an outer edge of the shower base plate or in the central region. The water drain according to the invention can therefore be assembled from modular system elements for point and line processes.

An embodiment of the invention is explained in more detail with reference to the drawing. The figures show:

1 shows a water drain according to the invention in an exploded view;

Fig. 2 shows the water drainage of Figure 1, einmontiert in a shower tray, in a section.

3 shows a section A - A of FIG. 2;

4 shows an enlarged section D - D of FIG. 2;

5 shows a connection adapter in a first embodiment;

6 shows a connection adapter 10 'in a second embodiment;

7 shows the connection adapter 10 'in plan view on its rear side;

FIG. 8 shows a section B - B according to FIG. 7; FIG.

FIG. 9 shows a section C - C according to FIG. 7; FIG.

FIG. 10 shows the connection adapter according to FIG. 7 in plan view on its upper side; FIG. FIG. 11 shows the connection adapter according to FIG. 7, in an enlarged, schematic representation;

Fig. 12 screwed with a trough-shaped drain body

Connection adapter, with visible flat shower insert, in a perspective view on an underside of the water outlet;

13 shows a schematic longitudinal section of the channel-shaped water outlet with a laterally directed outlet connection of the drain pot;

14 shows the longitudinal section according to FIG. 13, in a particularly flat embodiment of the water outlet;

15 shows the water drainage according to FIG. 12, with installed drain pot, in a perspective view onto an underside of the water drainage;

Fig. 16 is a schematic longitudinal section of the trough-shaped water drain with downwardly directed outlet nozzle of the drain pot and

Fig. 17 is a schematic sectional view of the water flow according to FIG. 15, perpendicular to the longitudinal orientation of the channel-shaped drain body. The same or similar elements may be provided in the following figures with the same or similar reference numerals. Furthermore, the figures of the drawing, the description and the claims contain numerous features in combination. It is clear to a person skilled in the art that these features are also considered individually or that they can be combined to form further combinations not described here in detail. Positions such as "top" or "bottom" refer to the positioning of a part when it is installed.

FIG. 1 shows a water outlet 100 in an exploded view. The water drain 100 comprises a flattened odor trap 26, a likewise flattened shower insert 27, a drain body 13, a connection adapter 10 and a circular drain pot 12 with a discharge nozzle 28 arranged perpendicular to the Abiaufrichtung. At the drain pot 12 is a circular receptacle 34 for a pipe socket 16 of the connection adapter 10 provided. Furthermore, FIG. 1 shows screw elements 29, by means of which the connection adapter 10 can be mounted with a drain body, which in the exemplary embodiment is a trough-shaped drain body 13.

The drain body 13 has a central outlet opening 38 and downwardly pointing ribs 22. The connection adapter 10 inserted into the water drain 100 according to FIGS. 2 and 3 is shown in detail in FIGS. 4 to 8.

Figures 2, 3 and 4 show the water outlet 100 in the mounted state used in a shower tray 11. Figure 2 shows a sectional view through the central axis of the water flow in the longitudinal direction. 2 shows a section A - A (see FIG. 2) of the same water outlet 100. FIG. 4 shows a section DD (see FIG. 2) which extends through the screw connection 37 of drain body 13 and connection adapter 10 '. The drain body 13 has in the region of the screw connection 37 dome 46 for receiving the thread of the screw elements 29. FIG. 5 shows a first embodiment of a connection adapter 10. The connection adapter 10 comprises the said pipe socket 16 with an outer casing 23 which tapers conically towards its free end 24 and a flange 14 lying opposite the free end 24. Since the connection adapter 10 is intended for a gutter outlet, For example, the flange 14 has an elliptical contour, so that the drain can be installed as a whole close to the outer edge of the shower base. As an alternative to the illustrated elliptical contour, a round outer contour of the flange can be provided, in particular when a punctiform water outlet is provided (not shown).

The flange 14 has an upper side 43 and a lower side 44 and an outer edge 25. The flange 14 has passage openings 21 for receiving screw elements 29 shown in FIG. 1. In order to connect the connection adapter 10 in a watertight manner to the drain body 13 in the area of these passage openings 21, sealing elements 20 are provided, which are sealing rings 42. The connection adapter 10 is made of a hard plastic and has in the region of its outer edge 25 a bead-shaped sealing ring 39 made of a soft plastic, which is connected in the exemplary embodiment by injection-cohesively with the hard plastic.

FIG. 6 shows a second embodiment of the connection adapter 10 '. This second embodiment differs from the first embodiment in that no sealing rings 42 are provided. Instead of the sealing rings 42, a ring seal 40 is rather provided which surrounds the pipe socket 16 in a circular manner. For attachment of the ring seal 40, the flange 14, starting from its upper side 43 on a substantially annular recess 17, which also includes the through holes 21. The depression 17 projects into the flange 14 approximately up to half the flange thickness. In the recess 17, a soft plastic is injected analogously to the method used in the manufacture of the sealing ring 39, which forms the ring seal 40. Analogous to the recess 17, the ring seal 40 has a substantially circular shape, which is flush with the top surface 43 of the flange 14. Instead of an injected ring seal 40, however, it is also possible to provide, for example, an inserted sealing ring which has no integral connection with the connection adapter 10 '. Within the recess 17 are four through holes 21, which are each introduced on an outwardly facing projection 19 and arranged in pairs to each other mirror-symmetrically. The symmetry refers to both main and minor axes X, Y of the elliptical flange 14 indicated by dot-dash lines. The passage openings 21 are intended to receive screw elements 29 (compare FIGS. 1 and 11). Between the bead-shaped sealing ring 39 and the ring seal 40 extend approximately crescent-shaped flat areas 18, 18 'of the flange 14th

The pipe socket 16 and the flange 14 of the connection adapter 10 and 10 'consist of a plastic hard component, here: a PC / ABS blend. The sealing ring 39 and the ring seal 40 are made of a soft component, namely of thermoplastic elastomer (TPE), optionally of plastic type PC / ABS, which has a heat resistance up to 127 ° C. The material PC / ABS is particularly suitable for joint bonding. Overall, the flange 14 forms an elastic sheet, which fits well with the counterpart, d. H. Drain body 13 adapted and can be sealed by means of screw 37 and sealing elements 20.

FIGS. 7 to 11 show the second embodiment of the connection adapter 10 'shown in FIG. 5 in different views.

Fig. 12 shows the water outlet 100 according to the invention before pushing the drain pot 12 on the pipe socket 16 of the connection adapter 10 '. As the figure shows, the connection adapter 10 'with the drain body 13 via screw 37 is already connected watertight. Reference numeral 11 denotes a plate-shaped shower tray.

For waterproofing between the drain pot 12 and pipe socket 16 contributes to an elastically deformable annular lamellar seal 30, which between the outer shell 23 of the pipe socket 16 and an inner surface 31 of Drain pot 12 (see Figures 16 and 17) is arranged. In this case, the lamellar seal 30 is placed in a circumferential seat 33 (cf., FIG. 1), which has been created by a tube widening 32 of the drainage pot 12. FIGS. 13, 14 and 15 show the complete channel-shaped water outlet 100 after the drain pot 12 shown in FIG. 12 has been pushed onto the pipe socket 16. In the fully assembled state, the water drain 100 has a drainage channel 35 with an interior region 36. As the rotary arrows 41 (FIG. 15) show, the drain pot 12, and thus the drain neck 28, can be adjusted about an axis of rotation D and aligned with the connection adapter 10 or 10 'in any direction. The channel-shaped water drain 100 according to FIG. 16 represents a particularly flat design.

The connection adapter according to the invention, regardless of the shape of its flange and the intended use, basically a round pipe socket 16. For different water drains, in particular for channel-shaped and punctiform drains, therefore uniform drain pots can be used.

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LIST OF REFERENCE NUMBERS

10, 10 'connection adapter 42

11 shower floor 43

12 drain pot 44

13 drain body 45

14 Flange (Fig. 8) 46

15 -

16 pipe socket 100 water outlet

17 deepening

18, 18 'flat area X main axis

19 projection Y minor axis

20 sealing element A-A

21 through hole B-B

22 rib (v. 13) C-C

23 outer sheath D-D

24 end D axis

25 outer edge (by flange 14)

26 odor trap

27 shower insert

28 drain pipe

29 screw element

30 lamellar seal

31 inner surface (by 12)

32 pipe extension

33 seat

34 recording (Fig. 1)

35 drainage channel

36 indoor area

37 screw connection

38 outlet opening

39 sealing ring (oval)

40 ring seal

41 rotary arrow

Claims

claims

1. Universal water outlet (100), in particular for a shower tray (11), comprising:

a drain body (13) with an outlet opening (38),

a connection adapter (10, 10 ') with a circular pipe socket (16) and

a drain pot (12) with a circular receptacle (34) for the pipe socket (16),

wherein the drain body (13) and connection adapter (10; 10 ') and connection adapter (10; 10') and drain pot (12) are waterproof connected to each other, so that the water outlet (100) in the mounted state, a tubular drainage channel (35) with a One or more passage openings (21) for screw elements (2Θ) are provided on the connection adapter (10; 10 ') by means of which at least one screw connection (37) of the connection adapter (10; 10') to the drain body (13) can be produced,

characterized in that

the screw connections (37) outside the inner region (36) of the pipe socket (16) are arranged and

at least one sealing element (20) is provided, which seals the screw connections (37) in a watertight manner.

2. Water drain (100) according to any one of claim 1, characterized in that the sealing element (20) as a separate, prefabricated part with the connection adapter (10, 10 ') is connectable.

3. water drain (100) according to claim 1 or 2, characterized in that as a sealing element (20) at least one plastically or elastically deformable sealing ring (42) is provided.

4. water drain (100) according to one of claims 1 to 3, characterized in that the sealing element (20) is materially connected to the material of the connection adapter (10, 10 '), wherein the material connection preferably by welding, coating, scorching or Spraying of an elastomeric material on the material of the connection adapter (0, 10 ') has arisen.

5. Water drain (100) according to one of claims 1 to 4, characterized in that the sealing element (20) in an annular seal (40) is integrated, which surrounds a on the connection adapter (10 ') arranged pipe socket (16) annular.

6. Water drain (100) according to one of claims 1 to 5, characterized in that the drain body (13) comprises a sealing edge (45) which in the manufacture of the screw (37) against the ring seal (40) of the connection adapter (10; ') is pressable.

7. Water drain according to claim 6, characterized in that in the sealing edge (45) dome (46) for receiving the screw elements (29) are integrated.

8. Water drain (100) according to one of claims 1 to 7, characterized in that the connection adapter (10, 10 ') comprises a flange (14) with a peripheral outer edge (25) and an outer sealing ring (39) and the passage openings ( 21) for the screw elements (29) are enclosed by the outer sealing ring.

9. water drain (100) according to one of claims 1 to 8, characterized in that the sealing element (20) consists of an elastomeric and water-repellent material.

10. Water drain (100) according to one of claims 1 to 9, characterized in that the passage openings (21) in a plan view of the flange (14) are arranged in pairs mirror-symmetrically.

11. Water drain (100) according to one of claims 1 to 10, characterized in that a soft plastic from the group TPE (thermoplastic elastomers) is selected as the material for the sealing element (20).

12. Water drain (100) according to one of claims 1 to 11, characterized in that the material of the connection adapter (10; 10 '), except the sealing element (20), a thermoplastic, in particular a polycarbonate / acrylonitrile butadiene styrene (PC / ABS) based thermoplastic.