WO2008096092A1 - A drain arrangement - Google Patents
A drain arrangement Download PDFInfo
- Publication number
- WO2008096092A1 WO2008096092A1 PCT/GB2007/000388 GB2007000388W WO2008096092A1 WO 2008096092 A1 WO2008096092 A1 WO 2008096092A1 GB 2007000388 W GB2007000388 W GB 2007000388W WO 2008096092 A1 WO2008096092 A1 WO 2008096092A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arrangement
- float
- sleeve
- drain
- closure
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/28—Odour seals
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D13/00—Urinals ; Means for connecting the urinal to the flushing pipe and the wastepipe; Splashing shields for urinals
Definitions
- the present invention relates to drain arrangements and more particularly to drain arrangements utilised with regard to ' urinals and slab drains.
- urinals and slab drains There is extensive use of urinals and slab drains in public buildings and sports stadia.
- the advantage of such urinals and slab drains ' is trie ability to accommodate a relatively large throughput . of people wishing . to urinate.
- a urinal or slab drain has a relatively large diameter drain aperture to accommodate relatively high service fluid flow volumes.
- This drain aperture advantageously must have an effective odour trap as well as ideally means to reduce liquid scaling and avoid urine lingering about surfaces of the drain aperture, particularly adjacent to its open end.
- a drain arrangement comprising a drain sleeve to define a seat for a float closure, the sleeve acting in use as a conduit for a fluid flow and the closure buoyant in the fluid flow.
- the drain sleeve has a cap. Possibly, the cap incorporates apertures to allow flow therethrough.
- the cap incorporates a disinfectant and/or, deodorising agent for the fluid flow.
- the sleeve comprises a tube.
- the seat is integrally formed with the sleeve.
- the seat is provided by a constriction element secured to an end of the sleeve.
- the float closure comprises a ball.
- the float has a reciprocal shape to engage an opposed part of the seat.
- the seat is reciprocally shaped for closure with the float closure.
- the float closure has an egg or pear-shaped cross-section. Normally, the float is hollow.
- the float when sufficiently buoyant in the fluid flow, acts to abut the cap. Possibly, abutment with the cap facilitates release of agents from the cap into the fluid flow.
- the float is weighted to one side in order to bias the float towards engagement with the seat.
- the float has a seal surface.
- the float is shaped to guide the fluid flow centrally below the sleeve.
- the sleeve is secured in a drain aperture.
- the sleeve protrudes no more than about 0.5cm beyond a bottom edge of the drain aperture.
- FIG. 1 is a schematic side illustration of a drain arrangement in accordance with first aspects of the present invention in a closed condition
- Fig. 2 is a schematic depiction of the arrangement depicted in Fig. 1 in an open condition
- Fig. 3 is a schematic cross-section of a drain arrangement in accordance with a second embodiment of certain aspects of the present invention.
- Fig. 4 is a schematic cross-section of the arrangement depicted in Fig. 3 in an open condition.
- urinals and slab drains provide convenient facilities in targe public buildings, including public houses and sports stadia.
- the drain arrangements for such urinals must be able to accommodate high flow rates and, therefore, have relatively wide diameter drain apertures through which the urine flows.
- Such wide apertures lend themselves to release of odours and may be difficult to provide with a water trap.
- Drain arrangements in accordance with aspects of the present invention are generally inserted into drain apertures in order to provide an odour trap as well as disinfecting and deodourising effects from release blocks incorporated into the arrangement.
- Figs. 1 and 2 illustrate a first embodiment of a drain arrangement 1 in accordance with aspects of the present invention.
- Fig. 1 illustrates the arrangement 1 in a closed condition whilst Fig. 2 illustrates the arrangement 1 in an open condition when a fluid flow in the direction of arrowheads F can pass through the arrangement 1 into a drain 2 through a drain aperture 3.
- a drain sleeve 4 extends through the aperture 3 in order to present an outlet 5 through which the fluid F flows.
- This fluid as described above is generally substantially urine but it will aiso be understood periodically that the drain arrangement will be flushed with a flushing fluid utilised to clean a urinal or slab drain 6 in which the arrangement 1 is set through the drain aperture 3.
- a float closure 7 is provided within the sleeve 4. This float closure 7 will normally be hollow or formed from material which has a specific density such that it is buoyant in the fluid flow F. In such circumstances it will be
- the fluid flow F passes through apertures 8 in a cap portion 9 of the arrangement 1.
- the fluid flow will initially dwell in the 0 area beneath the cap 9 above the sleeve 4 but the float closure 7 will rapidly rise in order to open a pathway around the float closure 7 for the fluid flow F.
- a periodic flush cleaning of the urinal 6 will present a high fluid flow to the arrangement 1 and this simiiariy must be accommodated by the arrangement by lifting the float 7 to enable that flush fluid flow to pass between the float 7 and the inner walls of the sleeve 4 to exit through the outlet 5 into the drain 2.
- the float closure 7 is spherical and has a ball shape, in such circumstances, the float 7 is not orientational-dependent and can, therefore, swivel and rotate if necessary whilst floating on the fluid flow F. Nevertheless, in its closed position depicted in Fig. 1 it is important that closure of the outlet 5 is achieved to act as an odour trap.
- the float closure 7, although air-filled, will generally have sufficient weight to seal out odours from the substantive part of the drain 2. In such circumstances, parts of the float closure 7 will, therefore, engage parts of the seat created by the outlet 5 for the float closure 7.
- the contact surfaces may be relatively broad to provide an adequate closure for odour prevention.
- the surface of the float closure 7 may be rendered slightly compliant and, therefore, act as a seal surface in compression with the seat formed by the outlet 5.
- inner seat surfaces of the outlet 5 may be tactile or otherwise rendered for sealing contact with the float closure 7. Nevertheless, it will be appreciated that this specific seal surface interface between in the float closure 7 and/or the seat formed by the outlet 5 should not be such that there is any inhibition of float lifting due to the buoyancy of the float closure 7 in the fluid flow F.
- a spherical or ball shape for the float closure 7 is convenient for the reasons described above and also in terms of providing predictability with respect to the available cross-section either side of the float closure 7 in the sleeve 4 for fluid flow F in use.
- the float closure 7 will generally be of a narrower diameter than the width of the sleeve 4 in order that fluid can dwell, as described above, in an area 10 during the initial stages of fluid flow F in order that the float closure 7 will rise under its buoyancy in the fluid flow to open the outlet 5. Too narrow a gap between the float closure 7 and the inner walls of the sleeve 4 may retard buoyancy lift and, therefore, create too great a dwell in fluid flow leading to overflow of fluid from the urinal 6.
- an egg- or pear- shaped float member 37 may be provided.
- the float closure 37 closes a drain arrangement 31 through an outlet 35.
- a drain sleeve 34 is fitted into a drain aperture 33 which extends into a drain 32.
- the arrangement 31 includes a cap 39 incorporating apertures through which a fluid flow FF passes initially to dwell in an area 40 before the buoyancy of the flow closure 37 causes it to rise in the fluid flow FF to open a passage or conduit through the arrangement 1 for the fluid flow FF into the drain 32.
- float closure shapes Although described as spherical or elongate, pear or egg shapes, it will be understood that other float closure shapes could be used dependent upon particular requirements. These shapes may include flat button-type or cylindrical float members. Furthermore, the float closures may have a donut shape with a central guide post upon which the float closure slides as to floats under its buoyance in the fluid flow.
- Upward movement of the float closures 7, 37 in accordance with aspects of the present invention is generally limited by the cap 39.
- float closures could be provided which are trapped in order to limit the range of movement under buoyancy within the fluid flow and, therefore limit the maximum cross-section for fluid flow through a drain arrangement if required.
- generally avoidance of overflow of the urinal is important and, therefore, maximum available cross- section will be given to maximise fluid flow-through.
- a certain level of liquid dwell may be advantageous for cleaning purposes by careful choice of the maximum level cross-sectional areas through the arrangement, it will be understood that retention of some flood flush liquid dwell may be achieved in the arrangement as well as the urinal or slab drain gutter. Limiting the gap between the float closure and the sleeve will also limit the rise of any solid debris which may enter the drain.
- the present drain arrangements are generally utilised with regard to urinals and other sanitary drainage systems.
- disinfectant, cleaning and deodourising agents may be utilised, it is common to provide within the cap 9, 39 a block of disinfectant, cleaning and/or deodourising material.
- This material will generally be washed by a flush flood of water used to cleanse the urinal but will be positioned in the dome of the cap in order to limit washing by urine in normal use.
- a float closure which is lifted into compressive engagement with the top of the dome of the cap of a drain arrangement may be utilised in order to stimulate release of agents under flush flooding conditions. It will be understood that the forceful lifting of the float closure will compress against the dome which, if it comprises a bladder or other appropriate membrane, will be pushed by the abutment of the float closure to release agents into the flood flow for cleansing purposes.
- the drain sleeve in accordance with certain aspects of the present invention is essentially a tube which is extends centrally down through the drain arrangement. In order to prevent the float closure blocking any of the apertures 8, 38 this sleeve will constrain the float closure to central portions of the arrangement.
- the drain sleeve incorporates a seat against which the float closure acts in order to provide an odour trap and from which the float closure lifts in order to provide an opening through which the fluid flow can pass.
- This seat can be integrally formed with the drain sleeve during a moulding process. ⁇
- integrally forming the seat with any degree of accuracy may be difficult.
- the seat which as indicated generally provides the outlet 5, 35 may be a separate constriction member secured over an end of the drain sleeve in order to confine the float closure in use.
- the float closure when assembling a drain arrangement in accordance with the present invention, the float closure may be placed in the drain sleeve either by removing the cap 9, 39 and dropping the float closure down the drain sleeve or, prior to installation, removing the constriction member to enable the float closure to be placed in the drain sleeve from that end.
- drain sleeve 4, 34 will generally be secured within a drain aperture 3, 33.
- the drain sleeve 4, 34 will not be in direct contact with the aperture 3, 33 and other securing mechanisms will be used to provide an inference fit in the drain aperture 3, 33 to ensure robust location of the arrangement 1 , 31.
- the drain sleeve and, in particular, the outlet 5, 35 is arranged such that it does not extend greater than about 0.5cm beyond the bottom opening of the aperture 3, 33. In such circumstances, any problems with respect to lack of space below the aperture 33 will be limited.
- the float closure in accordance with the present invention must have sufficient buoyancy in the fluid flow to rise appropriately quickly to allow fluid flow release through the arrangement in both norma! operation with urine as well as flood flow for flushing.
- the floats will be relatively light and may be hollow plastic elements or formed from lightweight foam or plastics materials.
- the float closure may be weighted to one side or appropriately to bring the float closure into association with the seat in order to creating a seal to act as an odour trap.
- Such weighting may also provide orientation which will then generally ensure that bands or otherwise portions of the float closure which are treated to act as sealing surfaces are brought into association with the seat by the orientation created through weighting.
- the seat 35 and parts 41 of the float closure 37 may be reciprocally shaped for engagement to improve sealing efficiency.
- a further advantage with regard to using an elongate shaping, such as an egg or pear shape as depicted in Fig. 3 and 4 with regard to the float closure 37, is that the fluid flow may be guided by contact with the float 37 in order to fall or pour from a nose end 42. Sn such circumstances, particularly with low flow rates during normai urine action, the urine will drip centrally within the drain 32 potentially reducing washing of the urine on the inner surfaces of the drain 32 and, therefore, scaling of those surfaces. It will also be understood that with regard to orientation, this nose end 42 will generally be the weighted end of the float 37 to create appropriate orientation in use.
- a urinal thickness T will generally be in the order of 2cm so that the sleeve 4, 34 will generally extend only 2.5cm which achieves a relatively compact form.
- the seat formed by the sleeve may be conical towards an outlet end so that a ball or cone shaped float closure may be used.
- a ball or cone shaped float closure may be used.
- the conical nature of such a seat would also guide the float member back to provide an odour trap sea! over the outlet when there is no flow.
- a recess 50 may be provided at the rear of the float closure where some liquid may be retained to add weight when there is no flow in order to improve sealing.
- the drain arrangement in accordance with the present invention will be made from a plastic material of sufficient durability to withstand use within the harsh and hostile environment of a urinal.
- dip tubes As indicated above, reduction of the exposed area of a drain which is wetted with urine reduces the amount of scale build-up and odour.
- Previous approaches which have utilised dip tubes have a number of problems.
- the present arrangement provides a sleeve with float closure so that as the sleeve is shut it does not touch the reservoir of urine and so reduces the chances of bacteria climbing back up the drain to the surfaces of the urinal whether through movement along the surface or by diffusion through the air.
- a dip tube by its very nature presents an extra surface upon which bacteria and limescale can develop.
- dip tube allows for a reduced surface area of the reservoir in contact with urine as the urine is presented directly below the surface of the urine reservoir, it will be understood that it does provide through the dip tube itself a pathway for odour vapours to permeate the surface.
- a float closure in accordance with the present invention, it will be appreciated that odours are almost eliminated.
- dip tubes may become blocked and in any event generally require more material in their manufacture.
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07712682A EP2109703A1 (en) | 2007-02-05 | 2007-02-05 | A drain arrangement |
AU2007346305A AU2007346305B2 (en) | 2007-02-05 | 2007-02-05 | A drain arrangement |
PCT/GB2007/000388 WO2008096092A1 (en) | 2007-02-05 | 2007-02-05 | A drain arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/GB2007/000388 WO2008096092A1 (en) | 2007-02-05 | 2007-02-05 | A drain arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008096092A1 true WO2008096092A1 (en) | 2008-08-14 |
Family
ID=38560772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2007/000388 WO2008096092A1 (en) | 2007-02-05 | 2007-02-05 | A drain arrangement |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2109703A1 (en) |
AU (1) | AU2007346305B2 (en) |
WO (1) | WO2008096092A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010091862A1 (en) * | 2009-02-12 | 2010-08-19 | Urimat Holding Ag | Odor seal for a urinal |
DE202011000512U1 (en) | 2011-03-08 | 2011-05-05 | Urimat Holding Ag | urinal use |
WO2012039593A1 (en) * | 2010-09-23 | 2012-03-29 | Helvex S.A. De C.V. | Sealing device for waterless urinals |
CN102852207A (en) * | 2012-08-16 | 2013-01-02 | 苏州启智机电技术有限公司 | Stink-proof floor drain |
CN102966171A (en) * | 2012-11-21 | 2013-03-13 | 台州市雅妮莎洁具有限公司 | Sanitary floor drain |
CN107060032A (en) * | 2017-02-04 | 2017-08-18 | 魏汝涵 | A kind of Water-saving urinal |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH636923A5 (en) * | 1980-07-17 | 1983-06-30 | Remo Curt Wey | Device for keeping foreign bodies, which have been thrown into a urinal bowl, out of the discharge channel of the urinal bowl |
WO1999057382A1 (en) * | 1998-05-05 | 1999-11-11 | Keller, Doris | Stench trap for a urinal |
US6318397B1 (en) * | 1999-08-04 | 2001-11-20 | Donald G. Huber | Side port floor drain |
DE60020356T2 (en) * | 2000-06-28 | 2006-05-04 | Home Abroad Link, Inc. | Float valve with two funnels |
-
2007
- 2007-02-05 EP EP07712682A patent/EP2109703A1/en not_active Withdrawn
- 2007-02-05 AU AU2007346305A patent/AU2007346305B2/en not_active Ceased
- 2007-02-05 WO PCT/GB2007/000388 patent/WO2008096092A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH636923A5 (en) * | 1980-07-17 | 1983-06-30 | Remo Curt Wey | Device for keeping foreign bodies, which have been thrown into a urinal bowl, out of the discharge channel of the urinal bowl |
WO1999057382A1 (en) * | 1998-05-05 | 1999-11-11 | Keller, Doris | Stench trap for a urinal |
US6318397B1 (en) * | 1999-08-04 | 2001-11-20 | Donald G. Huber | Side port floor drain |
DE60020356T2 (en) * | 2000-06-28 | 2006-05-04 | Home Abroad Link, Inc. | Float valve with two funnels |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010091862A1 (en) * | 2009-02-12 | 2010-08-19 | Urimat Holding Ag | Odor seal for a urinal |
AU2010213152B2 (en) * | 2009-02-12 | 2013-07-04 | Urimat Holding Ag | Odor seal for a urinal |
EP2594698A3 (en) * | 2009-02-12 | 2013-08-14 | Urimat Holding AG | Odor seal for a urinal |
WO2012039593A1 (en) * | 2010-09-23 | 2012-03-29 | Helvex S.A. De C.V. | Sealing device for waterless urinals |
DE202011000512U1 (en) | 2011-03-08 | 2011-05-05 | Urimat Holding Ag | urinal use |
CN102852207A (en) * | 2012-08-16 | 2013-01-02 | 苏州启智机电技术有限公司 | Stink-proof floor drain |
CN102966171A (en) * | 2012-11-21 | 2013-03-13 | 台州市雅妮莎洁具有限公司 | Sanitary floor drain |
CN107060032A (en) * | 2017-02-04 | 2017-08-18 | 魏汝涵 | A kind of Water-saving urinal |
CN107060032B (en) * | 2017-02-04 | 2018-02-13 | 魏汝涵 | A kind of Water-saving urinal |
Also Published As
Publication number | Publication date |
---|---|
EP2109703A1 (en) | 2009-10-21 |
AU2007346305B2 (en) | 2011-07-21 |
AU2007346305A1 (en) | 2008-08-14 |
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