WO2007014817A1

WO2007014817A1 - Odour seal

Info

Publication number: WO2007014817A1
Application number: PCT/EP2006/063830
Authority: WO
Inventors: Werner Schlüter
Original assignee: Schlüter-Systems Kg
Priority date: 2005-08-03
Filing date: 2006-07-04
Publication date: 2007-02-08
Also published as: ES2316087T3; DK1910627T3; DE502006002346D1; US20090126102A1; EP1910627A1; PL1910627T3; ATE417158T1; EP1910627B1; DE102005036464B3; CA2612767A1

Abstract

The invention proposes an odour seal for use in or on the drainage channel of sanitary installations or the like, or on the outflow thereof, comprising a housing (101) provided with an inflow, and also comprising a helical inner wall (114) which is arranged on the housing, at a spacing apart therefrom, and forms an annular space (106) with the inner housing wall (113), and this annular space (106) is connected to an upper overflow (115), formed by way of the inner wall (114), into an outflow chamber (106) with an outwardly directed overflow connection (103), the housing (101) being an elongate conduit component which is closed at the ends on both sides and in which the helical inner wall (114) is arranged in the longitudinal direction, at a spacing apart, to form the annular space (105), which is connected to the inflow (102) and/or an inflow chamber (104).

Description

trap

The invention relates to an odor trap according to the preamble of claim 1. Such odor traps are arranged in or behind a drainage line behind sanitary facilities, such as shower trays, bathtubs, sinks, sinks or as floor drains. By virtue of their construction, such devices retain a level of water which seals the connected equipment from gases originating in the sewer.

Known from FR 2 791 372 A1 as a siphon designated odor trap, which is to be arranged exclusively directly under the appropriate sanitary facility, for example, at the outlet of a sink. It consists of a pot-like housing, on the upper open side of which a fastening flange is provided, with which such an odor trap can be directly attached below the corresponding sanitary system. In this pot-like housing, a spiral-shaped inner wall with a distance from the wall is arranged, which separates an upwardly open inlet chamber from a drain chamber formed inside the inner wall, which communicates with a discharge nozzle, which is to be connected to the drainage string of the sewage system. This inner wall forms an annular space with an upper overflow from the inlet chamber to the drain chamber. With this construction, it is achieved that when running water from a sanitary system always serving as an odor trap water level in the housing is maintained up to the height of the overflow. Compared to U-shaped siphons this trap has the possibility of lower construction heights for the same drainage cross sections. Such an advantage is particularly important if such an odor trap in a floor structure z. B. is to be accommodated under a shower tray and only a small height is available.

However, the possibilities for reducing the construction height of an odor trap formed in this way are only due to the necessary annular space in a housing and the inlet chamber limited to ensure adequate flow cross sections. In addition, with minimized corresponding cross-sectional conditions the risk that the odor trap with its water level forming annular space is sucked empty in such an odor trap because of the small amount of water at low pressure in the drainage strand, so that an odor trap is no longer effective.

The object of the invention is to propose an odor trap of the type mentioned at the outset, which, taking into account the required minimum passage cross-sections, permits a lower installation height and which can additionally provide increased safety against a risk of empty suction due to negative pressure in the drainage line.

The object is achieved with an odor trap with the features of claim 1. In contrast to the prior art, such an inventive odor trap uses the possibility of generally available in the floor structure width and length dimension, so that the height dimension is limited to a minimum can be. Instead of a pot-like housing of the odor trap according to the invention uses an elongated channel piece, which may for example have an oval cross section or a rectangular cross section.

Such an odor trap according to the invention can have both an end-side connection which can be installed with a corresponding shaped piece in the immediate vicinity of the sanitary facility or a floor inlet. But it is also directly executable as channel-like channel piece according to claim 7 and the following claims and can be mounted on the drainage string. Such an odor trap can thus also be used as an elongated drainage channel z. B. be used as a floor drain or on a sanitary object with a slot-like drain opening.

To accommodate a bottom inlet grille or for attachment to a sanitary object serve mounting flanges, where also sealing materials can be applied. The mounting flange may be equipped with holes or other fasteners. To increase the residual water volume used in the device according to claim 5 and to reduce the suction at a negative pressure, it is proposed according to claim 4 to expand the annular space from the lowest point to the overflow in order to prevent vacuuming under reduced pressure. Also, this enlargement uses the width dimension, the construction height of such an odor trap is not changed.

By a barrier bar, a minimum water storage space of the annular space can be formed.

Reference to illustrated embodiments, the invention will be explained in more detail below. Show it:

1 is a view of the upstream side of a channel-like odor trap,

Fig. 2: a plan view of an odor trap with a cross-sectionally approximately oval housing in section along the line

M-II figure 1,

3: the front view of the downstream side of the housing,

4 shows a section along the line l-l in Figure 2,

5 is a plan view of a trough-like odor trap and

6 shows a perspective sectional view according to the line III-III in FIG. 5 through the odor trap in FIG. 5.

With the figures 1 to 4, an odor trap is shown, which is attached to either a drain line z. B. can be connected as a floor drain or directly with an elbow on a sanitary system, such as sink, bathtub, shower tray, bottom drain or the like, the height of construction must be only slightly larger than that - A -

Diameter of the drainage line, so that such odor traps are particularly suitable for installation in a floor in which only a small height is available or z. B. under vanities to create as much space for base cabinets or the like. It consists of a trained in the manner of a channel piece housing 1 with an approximately oval outer cross-section. The housing on the inflow end end wall 11 is penetrated by the inlet nozzle 2, which is to be connected to the sanitary system or a bottom inlet. The downstream end wall 12 has laterally off-axis the drain pipe 3. At a distance from the housing inner wall or the channel wall 13, a spiral inner wall 14 is provided in its interior, with which an annular space 5 is formed. This upwardly open spiral inner wall 14 forms an overflow 15 to the interior of the inner wall 14 and thus to a drain chamber 6, which is connected to the Ablaufstut- zen 3. The two inlet via the inlet pipe 2 wastewater passes through the inlet chamber 4 to the annulus 5 and after reaching the overflow 15 in the drain chamber 6 and is discharged from there via the outlet pipe 3 in the connection drain line. In the annular space 5 remains after appropriate feed serving as an odor trap water level, which is determined by the height of the overflow 15. In order to ensure a sufficient residual water level at any negative pressure in the subsequent drainage line, a ring 5 limiting continuous web 16 is arranged parallel to the spiral inner wall 14 in the longitudinal direction with a height H, which is greater than the height h of the annular space at the lowest point.

Figures 5 and 6 show an odor trap in the manner of a trough-like channel piece 101 with the end walls 111 and 112. In this channel piece 101, which may be provided with additional outer side walls and a footing bottom surface, a spiral-shaped inner wall 114 is also arranged inside the wall distance forming an annulus 105. This gutter-like channel piece can be used directly in the bottom of a sanitary facility, such as a floor-level shower as Bodenablaufrinne or under a sanitary part with slit-shaped drain. The effluent water enters via the slot 102 in the inlet chamber 104, which may be widened in width, and from there via the annular space 105 and the overflow 115 to Drain chamber 106. Can be attached this channel piece 101 with molded-on side mounting flanges 116 under a sanitary part by appropriate fasteners. When used as a floor drain, the mounting flange 116 can serve as a support surface for an inlet grate and for embedding in thin-bed mortar, for which the mounting flange can be equipped with perforations at regular intervals, so that the protruding legs can be anchored under tiles in the thin bed process. The mounting flange also serves to receive sealing means.

With this construction as well, the annular space 105 formed between the channel wall 113 and the inner wall 114 can continuously expand from the lowest point to the overflow 115, in order to increase the volume of water which serves to close the odor trap.

LIST OF REFERENCE NUMBERS

Housing channel piece 102 entry slot

End wall 103 drain

End wall 104 inlet chamber

Duct wall 105 Annular space

Inner wall 106 drain chamber

overflow

Bar H Height h Height of inlet pipe

drain connection

inlet chamber

annulus

drain chamber

channel-like channel piece

bulkhead

channel wall

inner wall

overflow

mounting flange

Claims

claims

1. odor trap for use in or on the drainage string of sanitary facilities or the like or at its expiration, consisting of a housing equipped with an inlet and a wall with spaced spiral inner wall which forms an annular space with the housing inner wall and this annulus with a through the inner wall formed upper overflow into an outflow space within the inner wall opens, said drain is spatially connected to an outwardly leading drain connection, characterized in that the housing is an end side closed at both ends, elongated channel piece (1, 101), in in that the spiral-shaped inner wall (14, 114) is arranged in the longitudinal direction with wall clearance to form the annular space (5, 105), which communicates with the inlet (2, 102) or an inlet chamber (4, 104).

2. odor trap according to claim 1, characterized by a tubular, circumferentially continuously closed channel piece

(1) with an inflow-side inlet chamber (4), which opens into the annular space (5) between spiral inner wall (14) and channel wall (13), wherein the spiral-shaped inner wall (14) on the inflow side at least up to the height of the overflow (15) closed frontally - sen is.

3. odor trap according to claim 2, characterized in that the tubular channel piece (1) has an approximately oval or approximately rectangular cross-section, wherein the axes of the inlet nozzle (2) and the outlet nozzle (3) are arranged laterally offset.

4. odor trap according to claim 2, characterized in that the annular space (5) widens from the lowest point to the overflow (15).

5. odor trap according to claim 2, characterized parallel to the spiral inner wall (14) a continuous web (16) or the like delimiting the annular space (5) is arranged longitudinally with a height (H) greater than the height (h) of the annular space at the lowest point.

6. odor trap according to claim 2, characterized in that the spirally curved inner wall (14) is integrally formed on the inside of the upper side of the channel wall (13).

7. odor trap according to claim 1, characterized by a channel-like channel piece (101) having one or more upper inlet openings (102) in the end face closed annulus (105) open on both sides and the end face closed drainage chamber (106) with a discharge nozzle (103) communicates.

8. odor trap according to claim 7, characterized in that the inlet opening is a continuous slot (102).

9. odor trap according to claim 7, characterized in that in the upper region of the channel piece (101) lateral mounting flanges (116) are arranged.

10. odor trap according to claim 9, characterized in that the mounting flanges (116) are provided with perforations at regular intervals.

11. odor trap according to one or more of the preceding claims, characterized in that the mounting flanges (116) in the direction of the inlet openings (102) have a gradient.