ES2438006T3 - Floor drain, in particular for a floor level shower - Google Patents

Abstract

Sump (1, 1 '), in particular for showers at ground level, with a sump housing (1.1) that has a connection plug (1.5) arranged laterally and on its upper side a feed opening (1.3), a part of floor (1.2, 1.2 ') without connection plug configured in the form of a bucket or vessel that is tightly connected to liquids with the sump housing (1.1), and an immersion tube element (2) that is formed from At least two pipe sections (2.1, 2.2) and that can be inserted through the feed opening (1.3) in the sump housing (1.1) and which defines a toilet siphon, being able to move or slide in a coaxial manner between yes the at least two tube sections (2.1, 2.2) of the immersion tube element to modify the axial length of the immersion tube element (2), characterized in that the floor part (1.2, 1.2 ') is connected to the housing sump (1.1) so that it can be adjusted in height.

Description

Floor drain, in particular for a floor level shower

The invention relates to a sump, in particular for floor level showers, with a sump housing that has a connection plug arranged laterally and on its upper side a feed opening, a floor part without a configured connection plug in the form of a cuvette or vessel that is tightly connected to liquids with the sump housing, and an immersion tube element that is formed from at least two tube sections and that can be inserted through the opening of feeding in the housing of sump and that with the same defines a siphon toilet.

A sump of this type is known from WO 2007/110595 A2. The sump represented therein has a sump housing and a cup-shaped floor part connected thereto in a liquid-tight manner. The sump housing has a first feed opening arranged on the side

15 upper and two laterally arranged connection plugs that define a feed plug and an evacuation plug. In addition, the sump has an immersion tube element that can be inserted through the upper feed opening in the sump housing, which is formed from two tube sections and which defines a toilet siphon with the sump housing. The tube sections can slide coaxially with each other to modify the axial length of the immersion tube element.

Similar additional sinks are known for example from DE 20 2005 012 802 U1 or from DE 20 2005 017 965 U1.

The existing space or that can be created to build a floor level shower on a bathroom floor

25 to accommodate a floor sump housing that has a toilet trap is generally limited. The fact is that the concrete floor or the concrete ceiling below the shower should not be broken or weakened excessively due to the safety of support and / or fire protection. In addition, reduced flooring heights are desirable, particularly in the field of sanitation of old buildings. Therefore, numerous floor sinks of a relatively flat structure with an odorless siphon have already been developed.

However, in many cases there is also a mounting space deep enough to accommodate a floor sump with an integrated toilet siphon, so that there is then the possibility of dimensioning the level of closing water in the toilet siphon relatively large .

The present invention is based on the objective of providing a sump with an odorless siphon in particular for showers at ground level that can be flexibly adapted to different mounting situations, so that its constructive height, its water level of closure as well as its evacuation performance are variable.

This objective is achieved by a sink with the characteristics of claim 1.

The sump according to the invention is characterized in that its floor part is connected to the sump housing so that it can be adjusted in height, and that the at least two tube sections of the immersion tube element can be rotated or slid coaxially with each other to modify the axial length of the immersion tube element.

The present invention is based on the objective of providing a sump with an odorless siphon in particular for showers at ground level that can be flexibly adapted to different mounting situations, so that its constructive height, water level of closure as well as its evacuation performance are variable.

This objective is achieved by a sink with the characteristics of claim 1.

The sump according to the invention is characterized in that its floor part is connected to the sump housing so that it can be adjusted in height and in a liquid tight manner, and that its immersion tube element is formed from at least two tube sections that can be rotated or displaced so

55 coaxial with each other to modify the axial length of the immersion tube element.

The advantage of the sump according to the invention consists in particular in that it does not have, as a conventional sump, fixed parameters with respect to the mounting height, the closing water level and the evacuation performance, but rather with respect to it You can easily adjust in a variable way on site. The adjustment can be made in this respect depending on the priority need in each case. If for example a mounting height as small as possible (overall height) is necessary, then this can be done by a corresponding height adjustment of the floor part with respect to the sump housing. The axial length of the immersion tube element can then be adapted to the overall adjusted height, and a maximized closing water level or maximized evacuation performance 65 or a compromise between Maximized closing water level and maximized evacuation performance. The adjustment of the sump according to the invention is carried out according to the parameter that is important in

each case in the respective situation.

In order to allow a simple height adjustment without graduation of the floor part with respect to the sump housing, a preferred configuration of the sump according to the invention provides that the floor part and the sump housing are provided in each case with a thread that can be screwed together.

The thread between the floor part and the sump housing is preferably configured in this respect so that without the use of an additional gasket it has a sealing function with respect to liquids.

10 However, conveniently according to an alternative configuration between the floor part and the sump housing an annular gasket may be arranged and / or the floor part may have a collar defining an annular sealing surface.

In order to easily adjust the length of the immersion tube element without graduation a

15 Further preferred configuration of the sump according to the invention provides that the tube sections of the immersion tube element are provided in each case with a thread that can be screwed together.

According to a further preferred configuration of the sump according to the invention it is provided that the immersion tube element defines with the floor part and / or the sump housing an annular evacuation channel whose width of

20 cross section increases from bottom to top. This configuration favors reliable evacuation and also counteracts an unwanted evacuation of the closing water in the toilet siphon in case of a negative pressure in the drain line connected to the sump.

A further advantageous configuration of the sump according to the invention provides that the sump housing is present

25 an overflow edge that runs transversely with respect to the longitudinal central axis of the connecting plug, being configured, seen in the evacuation direction in front of the overflow edge, an evacuation channel widening that narrows toward the edge of overflow The widening of the evacuation channel is formed in this respect preferably at least in part through a groove formed on the inner side in the sump housing. In the widening of the evacuation channel or the

A groove can form an air gap in case of an evacuation of closing water as a result of a vacuum in the connected drain pipe that eliminates the vacuum in the drain pipe and therefore prevents a loss of the closing effect of the toilet drain.

Especially advantageous is a configuration in which the widening of the evacuation channel is part of

35 a horizontal evacuation channel section in the form of a disk that is delimited by the immersion tube element and the sump housing, the volume of this evacuation channel section being in the form of a disk greater than or equal to the volume within the immersion tube element that is delimited by an upper horizontal plane that runs tangentially with respect to the overflow edge and by a lower horizontal plane that runs tangentially with respect to the lower end of the immersion tube element. Through

40 this configuration ensures that the relatively small volume of water inside the immersion tube (immersion tube element) in the event of an evacuation as a result of a vacuum in the connected drain pipe is partly or completely accommodated in the volume of The horizontal evacuation channel disc section and after omitting the vacuum can flow back, so that there is always enough closing water in the sump and in this way the toilet siphon closing function is ensured.

45 The widening of the evacuation channel or said volume of the horizontal evacuation channel disc section represents an evacuation guarantee that makes it possible to configure the sump in a particularly flat manner, so that it has a relatively reduced overall height.

Additional preferred configurations of the sump according to the invention are indicated in the dependent claims.

The invention will be explained in more detail below by means of a drawing that represents several examples of embodiment. They show:

Figure 1, a vertical sectional view of a sump according to the invention;

Figure 2, an enlarged detail view of Figure 1; Y

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

The drain 1, 1 ’represented in the drawing is intended for mounting on a floor of concrete or concrete, for example to create a sump for a shower at ground level.

65 Sump 1, 1 ’comprises a housing 1.1 as well as a floor part configured as a bucket or vessel

1.2. On its upper side the sump 1, 1 ’has a feed opening 1.3. The feeding opening 1.3 is configured in a cover part 1.4 which is connected in a sealed manner to the liquids, preferably welded or glued, with the housing 1.1. The floor part 1.2 does not have a connection plug for connecting a

5 drain pipe (not shown). Rather, a corresponding connection plug 1.5 is arranged laterally in the sump housing 1.1. Connection plug 1.5 is connected through a welded joint

or glued with the sump housing 1.1 and the cover part 1.4.

The sump 1, 1 ’further comprises an immersion tube element 2 that through the opening of

10 1.3 can be inserted in the sump casing 1.1 and which defines a toilet siphon. The feed opening 1.3 is configured in the form of a step seen in the vertical section. It comprises an upper step 1.31 surrounding annularly into which a sealing foil (not shown) with a slope in the direction of the immersion tube element can be extended. The sealing sheet can be applied, for example, in the form of a first liquid sealing mass, that is, a so-called sheet

15 liquid. Below the upper step 1.31, a second step 1.32 is also formed, which is annularly surrounding in the cover part 1.4 of the sump. The second step 1.32 serves to accommodate with drag a frame or adapter (not shown) in which an evacuation grid is inserted.

Below the second step 1.32 a cylindrical support surface 1.33 is used to serve

20 supporting the immersion tube element 2. The immersion tube element 2 has near its upper end an annular groove 2.3 arranged on the outer side to accommodate a sealing ring. The sealing ring (not shown) inserted in the annular groove 2.3 causes a friction joint between the immersion tube element 2 and the sump housing 1.1 or its cover part 1.4.

25 The floor part 1.2 of the sink 1, 1 ’has a floor 1.21 fundamentally flat in shape with a conical floor section 1.22 that goes into the immersion tube element 2. The conical floor section

1.22 improves the deviation of the liquid that is evacuated in the soil area 1.21. In this way, a reflux of the evacuating liquid is counteracted with a relatively high liquid feed and thus the evacuation performance is improved.

30 The floor part 1.2 of the sump is connected to the casing 1.1 so that it can be adjusted in height. For this purpose the floor part 1.2 and the sump housing 1.1 each have a cylindrical ring section 1.11,

1.23 in which threads 1.12, 1.24 that can be screwed together are configured. In the examples of

Embodiment depicting the cuvette-shaped floor part 1.2 has an inner thread 1.24 and the cylindrical annular section 35 of the sump casing 1.1 associated with the floor part has an outer thread 1.12.

The thread connection between the floor part 1.2 and the sump casing 1.1 according to figures 1 and 2 is preferably self-sealing, so that in this case there is a liquid-tight connection without an additional sealing means than the at the same time it allows a height adjustment of the floor part 1.2 with

40 with respect to the sump housing 1.1.

Another possibility of making a liquid-tight connection that allows a height adjustment of the floor part with respect to the sump housing is outlined in Figure 3. The embodiment shown in it differs from the example of embodiment according to figures 1 and 2 because between the floor part 1.2 'and the

A sump housing 1.1 is provided with an annular seal 3. The floor part 1.2 ’has a 1.25 collar or a cylindrical inner annular core defining an annular sealing surface. Near the upper end of the collar (inner annular core) 1.25 an annular groove 1.26 is formed on its outer side into which a sealing ring 3 is inserted which in the assembled state of the floor part 1.2 'is in contact with sealing the inner side of the cylindrical annular section 1.11 of the sump housing 1.1.

50 The immersion tube element 2 is formed in the exemplary embodiments represented in each case from two tube sections 2.1, 2.2 that are joined together so that they can be coaxially moved so that the length of the tube element can be adapted of immersion 2 to the overall height of the drain 1, 1 'adjusted through the height adjustment of the floor part 1.2, 1.2' or to be able to adjust the closing water level or the performance of

55 evacuation based on the requirements raised with respect to the sump.

The tube sections 2.1, 2.2 are each provided with a thread 2.11, 2.21 and are threaded together. Preferably the upper tube section 2.1 has the outer thread 2.11 and the lower tube section 2.2 has the inner thread 2.21 compatible therewith.

60 The closing water level can be increased by unscrewing the lower tube section 2.2 of the upper tube section 2.1, reducing the distance between the lower end of the immersion tube element 2 and the base 1.21 of the 1.2 floor to a reduction of the annular cross-sectional width and therefore to a reduction of the drain evacuation performance.

The lower tube section 2.2 of the immersion tube element 2 is configured in a widened manner with a conical shape or funnel shape towards its lower end. The upper tube section 2.1 is also tapered or funnel-shaped towards its upper end. The degree of widening or the radius of curvature are configured in this respect in a different way. In the drawing it can be seen that the degree of broadening with respect to the axial length is clearly greater at the lower end of the immersion tube element 2 than at its upper end. The degree of widening with respect to the axial length at the lower end is more than twice as large as at the upper end of the immersion tube element 2. Consequently the radius of curvature of the throat section seen in the vertical section in the lower end of the immersion tube element 2 is considerably smaller than the radius of curvature of the throat area

10 outside in the upper tube section 2.1.

The immersion tube element 2 defines with the floor part 1.2 and / or the sump housing 1.1 an annular evacuation channel (annular space) 4 whose cross-sectional width increases from the bottom up.

In addition, the sump housing 1.1 has an overflow edge 1.6 that runs transversely with respect to the longitudinal central axis of the connection plug 1.5. In front of the overflow edge, seen in the evacuation direction, an evacuation channel broadening 1.7 is configured which narrows towards the overflow edge 1.6 (see Figure 1). The widening of the evacuation channel 1.7 is formed in this respect at least in part by a groove formed on the inner side in the sump housing 1.1.

20 The widening of the evacuation channel 1.7 is part of a horizontal evacuation channel section in the form of a disk 1.8 which is delimited by the immersion tube element 2 and by the sump housing 1.1. The volume of this disk-shaped evacuation channel section is greater / equal to the volume inside the immersion tube element 2 that is delimited by an upper horizontal plane H1 that runs in a manner

25 tangential with respect to the overflow edge 1.6 and by a lower horizontal plane H2 running tangentially with respect to the lower end of the immersion tube element 2.

The embodiment of the present invention is not limited to the embodiments described above. Rather, numerous variants are possible that also with a different configuration from the embodiments 30 use the invention indicated in the appended claims. Thus, the possibility of length adjustment of the immersion tube element 2 can be achieved, for example, also because its at least two tube sections 2.1,

2.2 can slide coaxially with each other, for example telescopically. In addition, a surrounding seal may also be arranged between the tube sections 2.1, 2.2 of the immersion tube element 2, for example in the form of a sealing ring (not shown).

Claims (11)

1. Sump (1, 1 '), in particular for showers at ground level, with a sump housing (1.1) that has a connection plug (1.5) arranged laterally and on its upper side a feed opening (1.3) , a floor part 5 (1.2, 1.2 ') without a connection plug configured in the form of a cuvette or vessel that is fluid tightly connected with the sump housing (1.1), and an immersion tube element (2 ) which is formed from at least two pipe sections (2.1, 2.2) and can be inserted through the feed opening (1.3) into the sump housing (1.1) and which defines a toilet siphon , the at least two tube sections (2.1, 2.2) of the immersion tube element being able to move or coax each other to modify the 10 axial length of the immersion tube element (2), characterized in that the floor part (1.2, 1.2 ’) is connected to the sump housing (1.1) so that it can be adjusted in height. 2. Sump according to claim 1, characterized in that the floor part (1.2, 1.2 ’) and the sump housing (1.1) are provided in each case with a thread (1.12, 1.24) that can be screwed together. fifteen 3. Sump according to claim 1 or 2, characterized in that an annular gasket (3) is arranged between the floor part (1.2 ’) and the sump housing (1.1). 4. Sump according to one of claims 1 to 3, characterized in that the floor part (1.2 ') has a collar (1.25) defining an annular sealing surface. 5. Sump according to one of claims 1 to 4, characterized in that the tube sections (2.1, 2.2) of the immersion tube element (2) are each provided with a thread (2.11, 2.21) that can be screwed each.

6.

 Sump according to one of claims 1 to 5, characterized in that the lower tube section (2.2) of the immersion tube element (2) is configured conically widened towards its lower end.

7.

 Sump according to one of claims 1 to 6, characterized in that the immersion tube element (2)

30 with the floor part (1.2, 1.2 ’) and / or with the sump housing (1.2) defines an annular evacuation channel (4) whose cross-sectional width increases from the bottom up. A sump according to one of claims 1 to 7, characterized in that the sump housing (1.1) has an overflow edge (1.6) that runs transversely with respect to the longitudinal central axis of the plug 35 (1.5), being configured, seen in the evacuation direction in front of the overflow edge (1.6), a widening of the evacuation channel (1.7) that narrows towards the overflow edge (1.6). 9. Sump according to claim 8, characterized in that the widening of the evacuation channel (1.7) is formed at least in part by a groove formed in the sump housing (1.1). 40 A sump according to claim 8 or 9, characterized in that the widening of the evacuation channel (1.7) is part of a horizontal evacuation channel section in the form of a disk (1.8) that is delimited by the immersion tube element ( 2) and the sump casing (1.1), the volume of this section of the disk-shaped evacuation channel (1.8) being greater than or equal to the volume within the immersion tube element (2) that 45 is delimited by an upper horizontal plane (H1) that runs tangentially with respect to the overflow edge (1.6) and by a lower horizontal plane (H2) that runs tangentially with respect to the lower end of the immersion tube element (2). 11. Sump according to one of claims 1 to 10, characterized in that the floor part (1.2, 1.2 ’) has a conical floor section (1.22) that enters the immersion tube element (2).