DE202008011272U1 - Drain, especially for floor-level showers - Google Patents

Abstract

Drain (1, 1 '), in particular for floor-level showers, with a cup-shaped drain body (1.1) having a cup or cup-shaped, connection piece-free bottom part (1.2, 1.2'), a laterally arranged connection piece (1.5) and at its top one Inlet opening (1.3), and a dip tube element (2), which via the inlet opening (1.3) can be inserted into the drain housing (1.1) and defines a smell trap with this, characterized in that the bottom part (1.2, 1.2 ') height adjustable and liquid-tight is connected to the drain housing (1.1), and that the dip tube element (2) from at least two pipe sections (2.1, 2.2) is formed, which are mutually coaxially rotatable or displaceable to change the axial length of the dip tube element (2).

Description

The The invention relates to a process, in particular for floor-level Showers, with a pot-shaped drain body, the shell-shaped or cup-shaped, connection piece free Bottom part, a laterally arranged connection piece and at his Top has an inlet opening, and a dip tube element, via the inlet opening in the drain housing can be used and defines a smell trap with this.

Such a procedure is for example from the DE 20 2005 012 802 U1 or the DE 20 2005 017 965 U1 known.

Of the to build a floor-level shower in a bathroom floor existing or producible space for holding a scent trap having bottom drain housing is usually limited. Because the concrete floor or the concrete ceiling below the shower should for reasons of safety and / or fire safety is not excessive be broken or weakened. There is also a Desire for low screed heights, especially in the area the old building renovation. Therefore, many have become relatively flat built-up floor drains with odor trap developed.

In In many cases, however, is also a sufficiently deep installation space for holding a floor drain with integrated odor trap present, so that then there is the possibility of the sealing water level to be relatively large in the odor trap.

Of the present invention is based on the object, a sequence with odor trap especially for floor-level showers to provide, adapting to different installation situations can be flexibly adjusted so that its height, Locking water level and drain capacity is variable.

These Task is by a process with the features of the claim 1 solved.

Of the process according to the invention is characterized that its bottom part height adjustable and liquid-tight is connected to the drain housing, and that its dip tube element made at least two pipe sections is formed, the change the axial length of the dip tube element to each other coaxially are rotatable or displaceable.

Of the Advantage of the process according to the invention is in particular in that this is not fixed like a conventional expiration Parameters regarding the installation height, sealing water level and drain performance, but in this respect Place is variably adjustable in a simple way. The attitude can depend on the one in each case in the foreground Need to be made. Is for example a lowest possible height (total height) demanded, this can be done by appropriate height adjustment realized the bottom part opposite the drain body become. The axial length of the dip tube element is then adaptable to the set total height, in this respect a water level maximized at a low overall height of the drain or a maximized expiration or compromise between maximized sealing water level and maximized drainage capacity can be. The setting of the invention Process is performed depending on the parameter, which is just important in the particular situation.

Around a simple, stepless height adjustment of the bottom part to enable opposite the drain housing sees a preferred embodiment of the invention Expires before that the bottom part and the drain body respectively are threaded, which are screwed together.

The Screw thread between the bottom part and drain body is preferably designed so that it without the use of a additional sealing a sealing function Has liquids.

Conveniently, However, according to an alternative embodiment between the bottom part and the drain body an annular seal be arranged and / or the bottom part an annular Have sealing surface defining collar.

Around the length of the dip tube element also on simple Way to adjust stepless, sees another preferred embodiment of the invention Drain before that the pipe sections of the dip tube element respectively are threaded, which are screwed together.

To a further preferred embodiment of the invention Expiration is provided that the dip tube element with the bottom part and / or the drain housing an annular drain channel defined, whose cross-sectional width increases from bottom to top. This embodiment favors a reliable Liquid drainage and also acts an undesirable Extraction of the sealing water in the odor trap at a negative pressure in the sewer connected to the drain.

A further advantageous embodiment of the invention Expiration provides that the drain housing a transverse to Longitudinal axis of the connecting piece extending overflow edge having, seen in the flow direction before the overflow edge a drainage channel extension is formed, which extends to the overflow edge narrowed. The drainage channel extension is preferably at least partly by a molded into the drain housing inside Beading formed. At the drainage channel extension or the bead can at a suction of sealing water due to a vacuum in the connected sewer line form an air gap, the Vacuum in the sewer line and thus a loss of Blocking effect of the odor trap prevented.

Especially advantageous is an embodiment in which the flow channel extension Is part of a horizontal, disc-shaped drainage channel section, limited by the dip tube element and the drain housing is, wherein the volume of this disc-shaped flow channel section is larger or equal to the volume within the dip tube element, which by an upper, tangential to the overflow edge Horizontal plane and through a lower, tangential to the lower end the dipping tube element extending horizontal plane is limited. This configuration ensures that the relative small water volume inside the dip tube (immersion tube element) with a suction due to a vacuum in the connected Sewer pipe partially or completely in the volume of the horizontal Ablaufkanalscheibenabschnitts is recorded and after elimination of the Vacuum can flow back, so always enough Wastewater remains in the drain and thus the lock function the odor trap is ensured.

The Flow channel extension or the said volume of the horizontal Drain channel section represent a Absaugsicherung, which makes it possible to make the process particularly flat, so that he has a relatively low overall height.

Further preferred embodiments of the invention Procedure are specified in the dependent claims.

following the invention is based on a plurality of embodiments illustrative drawing explained in more detail. Show it:

1 a vertical sectional view of an inventive process;

2 an enlarged detail view of the 1 ; and

3 an enlarged detail view of a second embodiment of a sequence according to the invention in vertical sectional view.

The sequence shown in the drawing 1 . 1' is intended for installation in a screed or concrete floor, for example, to produce a drain for a floor-level shower.

The sequence 1 . 1' includes a cup-shaped housing 1.1 , the cup-shaped or cup-shaped bottom part 1.2 and at its top an inlet opening 1.3 having. The inlet opening 1.3 is in a lid part 1.4 formed, with the cup-shaped housing 1.1 liquid-tight connected, preferably welded or glued. The bottom part 1.2 has no connecting piece for connecting a sewer pipe (not shown). Rather, a corresponding connection piece 1.5 on the side of the drain housing 1.1 arranged. The connecting piece 1.5 is via a welded or glued connection with the drain housing 1.1 and the lid part 1.4 connected.

The sequence 1 . 1' further comprises a dip tube element 2 that over the inlet opening 1.3 in the drain housing 1.1 can be used and defines a smell trap with this. The inlet opening 1.3 is viewed in vertical section stepped. It comprises an upper annular shoulder 1.31 into which a sealing foil (not shown) may extend with a gradient in the direction of the immersion tube element. The sealing film can be applied, for example, in the form of an initially liquid sealant, ie a so-called liquid film. Below the top paragraph 1.31 is a second, also ring-shaped circumferential paragraph 1:32 in the lid part 1.4 the course formed. The second paragraph 1:32 serves the positive reception of a frame or adapter (not shown), in turn, a drain grate is used.

Below the second paragraph 1:32 is a cylindrical support surface 1:33 formed, which is the holder of the dip tube element 2 serves. The dip tube element 2 has near its upper end an externally arranged annular groove 2.3 for receiving a sealing ring. The in the ring groove 2.3 used sealing ring (not shown) causes a frictional connection between the dip tube element 2 and the drain housing 1.1 or its lid part 1.4 ,

The bottom part 1.2 of the process 1 . 1' has a basically flat bottom 1.21 with a cone-shaped, in the dip tube element 2 protruding floor section 1.22 , The conical bottom section 1.22 improves the deflection of the draining liquid in the area of the soil 1.21 , As a result, a backflow of the outflowing liquid is counteracted at relatively high liquid supply and thus improves the drainage performance.

The bottom part 1.2 the drain is height adjustable with the housing 1.1 connected. For this purpose, have the bottom part 1.2 and the drain housing 1.1 each a circular cylindrical section 1.11 . 1.23 on, on which screwed together thread 1.12 . 1.24 are formed. In the illustrated embodiments, the cup-shaped bottom part 1.2 an internal thread 1.24 and the bottom part associated circular cylindrical portion 1.11 of the drain housing 1.1 an external thread 1.12 on.

The threaded connection between bottom part 1.2 and drain housing 1.1 according to the 1 and 2 is preferably formed self-sealing, so that there is a liquid-tight connection without an additional sealant, which at the same time a height adjustment of the bottom part 1.2 opposite the drain housing 1.1 allows.

Another possibility for the realization of a liquid-tight connection, which allows a height adjustment of the bottom part relative to the drain housing is in 3 outlined. The embodiment shown there differs from the embodiment according to the 1 and 2 in that between the bottom part 1.2 ' and the drain housing 1.1 an annular seal 3 is arranged. The bottom part 1.2 ' has for this purpose a collar defining an annular sealing surface 1.25 or cylindrical inner ring web on. Near the top of the collar (inner ring bridge) 1.25 is in the outside of an annular groove 1.26 formed, in which a sealing ring 3 is inserted, in the assembled state of the bottom part 1.2 ' sealing on the inside of the circular cylindrical section 1.11 of the drain housing 1.1 is applied.

The dip tube element 2 is in the illustrated embodiments, each of two pipe sections 2.1 . 2.2 formed, which are coaxially movably connected to each other, to the length of the dip tube element 2 to the about the height adjustment of the bottom part 1.2 . 1.2 ' set total height of the process 1 . 1' to be able to adjust or to adjust the sealing water level or the drainage capacity depending on the requirements placed on the drain.

The pipe sections 2.1 . 2.2 are each with a thread 2.11 . 2.21 provided and bolted together. Preferably, the upper pipe section 2.1 the external thread 2.11 and the lower tube section 2.2 the matching internal thread 2.21 on.

The sealing water level can be reduced by turning down the lower pipe section 2.2 opposite the upper pipe section 2.1 be increased, with a reduction of the distance between the lower end of the dip tube element 2 and the floor 1.21 of the bottom part 1.2 leads to a reduction of the annular cross-sectional width and thus to a reduction in the drainage performance of the process.

The lower pipe section 2.2 of the dip tube element 2 is formed to its lower end conical or funnel-shaped widened. Likewise, the upper pipe section 2.1 extended to its upper end conical or funnel-shaped. The degree of expansion or the radius of curvature is formed differently. In the drawing, it can be seen that the axial length-related degree of extension at the lower end of the dip tube element 2 is significantly larger than at its upper end. The axial length-related extent of the extension is more than twice as large at the lower end than at the upper end of the dip tube element 2 , Accordingly, the radius of curvature of the throat area considered in the vertical section is at the lower end of the dip tube element 2 significantly smaller than the radius of curvature of the outer throat area at the upper tube section 2.1 ,

The dip tube element 2 defined with the bottom part 1.2 and / or the drain housing 1.1 an annular drainage channel (annulus) 4 whose cross-sectional width increases from bottom to top.

Furthermore, the drain housing 1.1 a transverse to the longitudinal central axis of the connecting piece 1.5 extending overflow edge 1.6 on. In front of the overflow edge - seen in the outflow direction - is a drain extension 1.7 formed, extending to the overflow edge 1.6 narrowed (cf. 1 ). The drain channel extension 1.7 is at least partially by a in the drain housing 1.1 formed inside bead formed.

The drain channel extension 1.7 is part of a horizontal, disc-shaped flow channel section 1.8 that is through the dip tube element 2 and the drain housing 1.1 is limited. The volume of this disc-shaped drain channel section is greater than or equal to the volume within the dip tube element 2 passing through an upper, tangential to the overflow edge 1.6 extending horizontal plane H1 and through a lower, tangential to the lower end of the dip tube element 2 extending horizontal plane H2 is limited.

The embodiment of the present invention is not limited to the above-described embodiments. Rather, numerous variants are possible, even in deviating from the embodiments of the design in The invention claims the benefit of the appended claims. Thus, the length adjustability of the dip tube element 2 For example, be achieved by the fact that its at least two pipe sections 2.1 . 2.2 are coaxial with each other, for example in the manner of a telescope. Furthermore, between the pipe sections 2.1 . 2.2 of the dip tube element 2 also a circumferential seal, for example in the form of a sealing ring (not shown) may be arranged.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 202005012802 U1 [0002]
• - DE 202005017965 U1 [0002]

Claims (11)

Procedure ( 1 . 1' ), especially for floor-level showers, with a cup-shaped drain housing ( 1.1 ), the shell-shaped or pot-shaped, connection piece-free bottom part ( 1.2 . 1.2 ' ), a laterally arranged connecting piece ( 1.5 ) and at its top an inlet opening ( 1.3 ), and a dip tube element ( 2 ), which via the inlet opening ( 1.3 ) in the drain housing ( 1.1 ) can be used and defines with it an odor trap, characterized in that the bottom part ( 1.2 . 1.2 ' ) height adjustable and liquid-tight with the drain housing ( 1.1 ) and that the immersion tube element ( 2 ) from at least two pipe sections ( 2.1 . 2.2 ) formed to change the axial length of the immersion tube element ( 2 ) are mutually coaxially rotatable or displaceable. Drain according to claim 1, characterized in that the bottom part ( 1.2 . 1.2 ' ) and the drain housing ( 1.1 ) each with a thread ( 1.12 . 1.24 ) are provided, which are screwed together. Drain according to claim 1 or 2, characterized in that between the bottom part ( 1.2 ' ) and the drain housing ( 1.1 ) an annular seal ( 3 ) is arranged. Drain according to one of claims 1 to 3, characterized in that the bottom part ( 1.2 ' ) a collar defining an annular sealing surface ( 1.25 ) having. Drain according to one of claims 1 to 4, characterized in that the pipe sections ( 2.1 . 2.2 ) of the immersion tube element ( 2 ) each with a thread ( 2.11 . 2.21 ) are provided, which are screwed together. Drain according to one of claims 1 to 5, characterized in that the lowest pipe section ( 2.2 ) of the immersion tube element ( 2 ) is conically widened towards its lower end. Drain according to one of claims 1 to 6, characterized in that the immersion tube element ( 2 ) with the bottom part ( 1.2 . 1.2 ' ) and / or the drain housing ( 1.2 ) an annular drainage channel ( 4 ) whose cross-sectional width increases from bottom to top. Drain according to one of claims 1 to 7, characterized in that the drain housing ( 1.1 ) a transversely to the longitudinal central axis of the connecting piece ( 1.5 ) extending overflow edge ( 1.6 ), wherein seen in the flow direction before the overflow edge ( 1.6 ) a flow channel extension ( 1.7 ) is formed, which to the overflow edge ( 1.6 ) narrowed. Process according to claim 8, characterized in that the flow channel extension ( 1.7 ) at least partially through a in the drain housing ( 1.1 ) molded bead is formed. Process according to claim 8 or 9, characterized in that the flow channel extension ( 1.7 ) Part of a horizontal, disc-shaped outlet channel section ( 1.8 ) passing through the dip tube element ( 2 ) and the drain housing ( 1.1 ) is limited, wherein the volume of this disc-shaped drain channel section ( 1.8 ) greater than or equal to the volume within the immersion tube element ( 2 ), which by an upper, tangential to the overflow edge ( 1.6 ) extending horizontal plane (H1) and by a lower, tangential to the lower end of the immersion tube element ( 2 ) extending horizontal plane (H2) is limited. Drain according to one of claims 1 to 10, characterized in that the bottom part ( 1.2 . 1.2 ' ) a conical, in the immersion tube element ( 2 ) projecting floor section ( 1.22 ) having.