EP1561869B1 - Siphon avec dispositif anti-retour - Google Patents

Siphon avec dispositif anti-retour Download PDF

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Publication number
EP1561869B1
EP1561869B1 EP05002107A EP05002107A EP1561869B1 EP 1561869 B1 EP1561869 B1 EP 1561869B1 EP 05002107 A EP05002107 A EP 05002107A EP 05002107 A EP05002107 A EP 05002107A EP 1561869 B1 EP1561869 B1 EP 1561869B1
Authority
EP
European Patent Office
Prior art keywords
water trap
bell
valve
riser pipe
valve body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP05002107A
Other languages
German (de)
English (en)
Other versions
EP1561869A3 (fr
EP1561869A2 (fr
Inventor
Hans Lohmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bluecher Metal AS
Original Assignee
Bluecher Metal AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bluecher Metal AS filed Critical Bluecher Metal AS
Publication of EP1561869A2 publication Critical patent/EP1561869A2/fr
Publication of EP1561869A3 publication Critical patent/EP1561869A3/fr
Application granted granted Critical
Publication of EP1561869B1 publication Critical patent/EP1561869B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401—Gullies for use in roads or pavements
    • E03F5/0405—Gullies for use in roads or pavements with an odour seal
    • E03F5/0406—Gullies for use in roads or pavements with an odour seal the odour seal being easily accessible for cleaning
    • 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
    • E03C1/29—Odour seals having housing containing dividing wall, e.g. tubular
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/042—Arrangements of means against overflow of water, backing-up from the drain
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
    • E03F2005/0417—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal in the form of a valve
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
    • E03F2005/0418—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal in the form of a bell siphon

Definitions

  • the present invention concerns a water trap with return flow protection, including a funnel which is connected with a riser pipe, a bell enclosing the riser pipe, and a valve adapted for enclosing the riser pipe, and which is movable between a closed position where the valve blocks for flow through the water trap, and an open position where the valve allows a normal drain function, and where the valve includes valve seats on the riser pipe and the bell, respectively, and a preferably replaceable valve body.
  • the water trap may either be an integrated part of the drain, a part of the pipe installation or a loose unit that may be placed in the drain/drain pipe.
  • the water trap is a loose unit, it is typically designed with a funnel which is connected with a riser pipe and a bell enclosing the riser pipe, so that the water is to pass down through the funnel and inside the riser pipe and subsequently up into the interspace along the outer side of the riser pipe and the bell.
  • HWS installations are provided with return flow protection that only allow water passing from the drain and down into the drain pipe.
  • a water trap with an integrated return flow protection In order to solve the above problems, there is provided a water trap with an integrated return flow protection.
  • EP-B1-0 486 954 e.g. there is disclosed a water trap with return flow protection, where the water trap includes a funnel connected with a riser pipe and a bell enclosing the riser pipe, so that water may be retained in the bell and thereby shut off the smell nuisances from the drain.
  • the bell In order to prevent return flow, the bell is connected to the funnel/riser pipe with a spring holding the bell clamped, so that the upper edge of the bell bears against a packing at the underside of the funnel, providing that water from the drain pipe cannot go back through the water trap.
  • the water trap in one of the disclosed embodiments includes a funnel which is connected with a riser pipe, a bell enclosing the riser pipe, and a valve adapted for enclosing the riser pipe, and which is movable between a closed position where the valve blocks for flow through the water trap, and an open position where the valve allows a normal drain function, and where the valve includes valve seats on the riser pipe and the bell, respectively, and a valve body.
  • valve body is designed with a convex/concave cross-section.
  • the water trap of the present invention is designed with a funnel connected with a riser pipe and a bell enclosing the riser pipe, whereby a water trap is formed, and where the return flow protection of the water trap is provided by the water trap furthermore including a valve.
  • the flow in the water trap is so that the liquid is led down into the funnel and down inside the riser pipe and up in the interspace between the outer side of the riser pipe and the bell.
  • a valve adapted for enclosing the riser pipe, and which is movable between a closed position where the valve blocks for flow through the water trap, and an open position where the valve allows a normal drain function.
  • valve When there is no liquid flow through the water trap, the valve will be in a closed position, so that the water trap is closed, and thereby smell nuisances from the drain pipe are prevented, irrespectively if there is liquid in the water trap or not.
  • the valve includes valve seats on the riser pipe and the bell, respectively, and a preferably replaceable valve body, where the valve seat on the riser pipe may be one or more wholly or partially enclosing projections with a preferably flat top side, while the valve seat on the bell may be a bent edge part.
  • valve body bears on the valve seats and thereby provide that the valve is in closed position.
  • the valve body has a width so that its edge parts bear on the valve body on the riser pipe and the valve seat on the bell, respectively, so that the valve body shuts off all through-flow in the water trap.
  • valve body When liquid is conducted down into the water trap, the valve body will float upon the water surface between the outer side of riser pipe and the bell. In that way the water trap is moved from a closed position to an open position, so that the liquid may flow out of the interspace between the outer side of the riser pipe and the bell.
  • valve body has a width which is adapted to the distance from the valve seats. This means that the valve body does not have projecting parts extending beyond the valve seats, by return flow reducing the risk of liquid getting hold of the edge parts of the valve body and thereby move the valve body up into an open position.
  • valve body In order to ensure that the water trap is completely closed when the valve body lies on the valve seats, the valve body is designed with a convex/concave cross-section so that the top side of the valve body is convex and the underside is concave. This implies that the edge parts of the valve body bear on each their valve seat and curves upwards across the opening between the outer side of the riser pipe and the bell.
  • valve body having a convex/concave cross-section
  • the risk of leakages arising along the valve seats is reduced in case that a pressing force is applied on the top side of the valve body.
  • This pressure force may be caused by air or water penetrating back from the drain pipe.
  • valve seat on the riser pipe is disposed opposite the valve seat on the bell. This provides that the valve seat will lie approximately horizontally across the opening between the riser pipe and the bell, which is an advantage, as the valve seat thereby may fit tightly to the valve seats.
  • valve seat on the riser pipe is disposed higher than the valve seat on the bell. This implies that the valve body will be inclined so that it slopes downwards from the riser pipe and out towards the bell, reducing the risk of a return flow getting hold of the edge of the valve body and forcing the valve body away from the valve seat on the bell, so that an opening arises and thereby a possibility of liquid through-flow in the water trap.
  • valve seat In order to avoid a sudden return flow of liquid in the water trap, or an air pressure, getting hold of a projecting part of the valve body and lifting it off the valve seats, whereby the risk of liquid or air penetrating through the water trap is increased, in a closed position the valve seat has an inner lip member bearing against the valve seat of the riser pipe and an outer lip part bearing against the valve seat of the bell.
  • the inner and outer lip parts are more flexible that the rest of the valve body, entailing that the lip parts fit tightly to the valve seats. Due to the flexible lip parts, the valve body is more tolerant towards minor faults in production and a little dirt settling on the valve seats, and the effect of the return flow protection is therefore not reduced in case of minor production faults and a little dirt on the valve seats.
  • valve seat and the bell are connected with a projecting part of the bell, providing that the flow-through area between the bell and the riser pipe is increased so that it is possible to produce a compact water trap with a liquid flow of 0.8 l/s or more.
  • the valve body is made of a polymer material, as e.g. a rubber material such as silicone rubber or a plastic material like TPE plastic, providing that the valve body is approximately soft so that the edge parts of the valve body fit tightly against the valve seats.
  • valve body may be produced of another material, e.g. metal or ceramics, if very aggressive liquids are discharged which are destructive to the polymer material.
  • Valve bodies made of metal or ceramics may be provided with lips of a polymer material so that the valve body fits tightly down against the valve seats.
  • the bell is connected to the riser pipe with a number of fittings that are preferably fastened to the riser pipe and subsequently screwed together with the bell.
  • the funnel is provided with an annular packing which is disposed in an upper edge part. This packing furthermore provides for the water trap to be placed in a desired position during mounting, without falling down into the drain pipe while the water trap is fastened.
  • the water trap For fastening the water trap in a drain pipe, it includes a fastening unit connected to the funnel.
  • This fastening unit is disposed so that it may be worked from the top of the water trap, so that it is either possible to press the water trap down into a drain pipe and subsequently to fasten the water trap, or reversely, to loosen the fastening unit and thereby release the water trap so that it may be taken up of the drain pipe for maintenance or cleaning.
  • the fastening unit includes a clamping device with a number of radial arms which are adapted for engaging an inner side of a drain pipe.
  • the clamping device furthermore includes a bolt screw which via a screw socket and a connecting member connects the clamping device to the funnel member.
  • This connecting member may be a plate having a cutout which is complementary to the internal shape of the funnel, so that the plate fits tightly to the funnel and is thereby easy to fasten, e.g. by spot welding or the like.
  • the screw socket may alternatively be connected to the bell and may be an upright part that in a lower end is fastened to the internal bottom of the bell.
  • the radial arms have the same shape and length.
  • the radial arms are adapted for engaging an inner side of a drain pipe so that they thereby hold the water trap in the desired position in the drain pipe.
  • the radial arms are longer than the distance from the centre of the clamping device to the point of abutment at the inner side of the drain pipe.
  • the radial arms will therefore have a downwards curving shape in relation to the clamping device, providing that the fastening unit can be passed down together with the water trap.
  • the downwards curving shape implies that pressing down of the clamping device will force the radial arms downwards against an upper edge of the funnel, causing the pointed ends to be forced outwards and thereby extending beyond the upper edge of the funnel and engaging the inner side of the drain pipe so that the water trap is secured.
  • the radial arms are designed with a number of pointed ends which will penetrate into the inner side of the drain pipe and thereby prevent displacing of the water trap by e.g. a strong return flow.
  • the pointed ends may be designed with different shapes, e.g. as a central pointed end on each radial arm, or as two pointed ends - one at each side edge of the radial arm. If there are more pointed ends, these may be separated by different forms of cutouts, e.g. a V-cutout or a concave cutout.
  • the water trap is made of metal, e.g. stainless steel, which has the advantage over plastic that it is more resistant to aggressive liquids or vermins, as e.g. rats, that gnaw through the water trap.
  • a water trap 1 that includes a funnel 2 which is connected to a riser pipe 3 and a bell 4 enclosing the riser pipe 3.
  • the water trap furthermore includes a valve 5 that includes a valve seat 6 on a riser pipe 3 and a valve seat 7 on a bell 4 and a valve body 8.
  • valve body 8 is here shown in closed position, where the valve body 8 bears down against the valve seat 6 and the valve seat 7 in order to shut off flow through the drain 1.
  • the bell 4 is connected to the riser pipe 3 with a fitting 9.
  • the valve seat 6 on the riser pipe 3 is here shown disposed at the same level as the valve seat 7 on the bell 4.
  • the funnel 2 is provided with an annular packing 10 providing that the water trap 1 may be placed in a drain pipe (not shown) so that there is provided water and air tightness between a top side of the water trap 1 and an underside of the water trap 1.
  • a fastening unit 11 is connected to the funnel 2, including a clamping device 12 with radial arms 13.
  • the clamping device 12 is connected with a screw bolt 14 to a screw socket 15 which is fastened to a plate 16 fastened to the funnel 2 so that the screw socket 15 is disposed at the centre over the riser pipe 3.
  • the clamping device 12 will force the radial arms 13 down against an upper edge 2a of the funnel 2 and outwards.
  • Fig. 2 On Fig. 2 is shown a detailed section of the valve 5 where it is seen that the valve body 8 has a cross-section with a convex top side 8a and a concave underside 8b, and where the concave underside 8b ends in lip parts 28a and 28b.
  • Lip parts 28a bear down against a valve seat 7, and lip parts 28b bear against an end 9a of fitting 9 which is connected to the riser pipe 3. In a section of the valve 5 where no fitting is provided, lip parts 28b will bear against the valve seat (not shown) on the riser pipe 3.
  • the valve seat 7 is shown formed with a projection 17 ensuring that the through-flow area between the bell 4 and the riser pipe 3 becomes larger, which implies a better flow through the water trap 1 and a possibility of producing a more compact water trap.
  • the fitting 9 is designed with a threaded hole 18 that allows a separatable assembling of the riser pipe 3 and the bell 4 by means of a bolt which is passed through a hole 19 in the bell 4 and into the threaded hole 18.
  • Figs. 3 and 4 On Figs. 3 and 4 is shown how the radial arms 13 end in a pointed end 13a which is adapted for engaging an inner side of a drain pipe (not shown).
  • Fig. 4 On Fig. 4 is shown how a water trap 1 looks like by mounting in a drain pipe (not shown).
  • the clamping device 12 will be with downwards directed radial arms 13.
  • the screw bolt 20 is used for fastening the bell 4 to the fitting (not shown) that connects the bell 4 with the riser pipe (not shown).

Claims (11)

  1. Un siphon avec dispositif anti-retour comportant une trémie (2) liée avec un tube montant (3), une cloche (4) entourant le tube montant (3) et une soupape (5) aménagée pour entourer le tube montant (3), et qui est mobile entre une position fermée dans laquelle la soupape (5) ferme le passage à travers le siphon (1) et une position ouverte dans laquelle la soupape (5) permet une fonction d'écoulement normale, la soupape (5) comprenant des sièges de soupape (6, 7) sur respectivement le tube montant (3) et la cloche (4) ainsi qu'un corps de soupape (8) préférentiellement interchangeable, caractérisé en ce que le corps de soupape (8) est realisé avec une coupe transversale convexe / concave de manière à ce que la partie supérieure du corps de soupape soit convexe et la partie inférieure soit concave.
  2. Siphon (1) selon la revendication 1, caractérisé en ce que le siège de soupape (6) sur le tube montant (3) est placé en opposition au siège de soupape (7) sur la cloche (4).
  3. Siphon (1) selon l'une quelconque des revendications 1 à 2, caractérisé en ce que le siège de soupape (6) sur le tube montant (3) est placé à un niveau supérieur que celui du siège de soupape (7) sur la cloche (4).
  4. Siphon (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le corps de soupape (8) en position fermée possède une partie de lèvre intérieure (28b) s'appuyant sur le siège de soupape (6) du tube montant (3) et une partie de lèvre extérieure (28a) s'appuyant sur le siège de soupape (7) de la cloche (4).
  5. Siphon (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le siège de soupape (7) de la cloche (4) et la cloche (4) sont liés à une partie saillante (17) de la cloche (4).
  6. Siphon (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le corps de soupape (8) est réalisé en matériau polymère.
  7. Siphon (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la cloche (4) est liée au tube montant (3) avec un nombre de raccords (9).
  8. Siphon (1) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la trémie (2) est munie d'un joint circulaire (10) et que l'écoulement (1) comprend, en plus, une unité de fixation (11) liée à la trémie (2).
  9. Siphon (1) selon la revendication 8, caractérisé en ce que l'unité de fixation (11) comprend un dispositif de fixation (12) avec un nombre de bras radiaux (13) aménagés pour intervenir avec une face interne d'un tube d'écoulement.
  10. Siphon (1) selon l'une quelconque des revendications 8 à 9, caractérisé en ce que les bras radiaux (13) sont plus longs que la distance entre le centre du dispositif de fixation (12) et le point d'appui de la face interne du tube d'écoulement.
  11. Siphon (1) selon les revendications 8 à 10, caractérisé en ce que les bras radiaux (13) sont réalisés avec un nombre de pointes (13a).
EP05002107A 2004-02-06 2005-02-02 Siphon avec dispositif anti-retour Active EP1561869B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK200400179 2004-02-06
DKPA200400179 2004-02-06

Publications (3)

Publication Number Publication Date
EP1561869A2 EP1561869A2 (fr) 2005-08-10
EP1561869A3 EP1561869A3 (fr) 2006-05-10
EP1561869B1 true EP1561869B1 (fr) 2007-04-18

Family

ID=34673557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002107A Active EP1561869B1 (fr) 2004-02-06 2005-02-02 Siphon avec dispositif anti-retour

Country Status (4)

Country Link
EP (1) EP1561869B1 (fr)
AT (1) ATE360120T1 (fr)
DE (1) DE602005000886T2 (fr)
DK (1) DK1561869T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015081881A1 (fr) * 2013-12-06 2015-06-11 谢水清 Drain de sol pour le drainage d'un même etage resistant aux odeurs du type a joint hydraulique hermetiquement ferme a action de longue duree

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK200900165A (da) 2009-02-04 2010-08-05 Ndt Internat Holdings As Anordning til blokering af gulvafløb med ventil
CN202157390U (zh) * 2011-07-07 2012-03-07 林政谕 排水孔落水装置
DE102012100835B4 (de) * 2012-02-01 2015-07-09 Aco Severin Ahlmann Gmbh & Co. Kg Glockengeruchsverschluss
CN104099995A (zh) * 2014-08-03 2014-10-15 刘兴丹 直排式盖液地漏
CN110805119B (zh) * 2019-06-04 2020-11-24 浙江亚厦装饰股份有限公司 一种防臭防水双重保护地漏组件

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134940B (en) * 1982-12-15 1986-03-19 Michael Robert Jupp Drainage gully trap
SE501947C2 (sv) * 1990-11-19 1995-06-26 Sjoebo Bruk Ab Avloppsbrunn med dubbla luktlås
WO2002092926A1 (fr) * 2001-05-17 2002-11-21 Kyung Seo Koo Structure de sortie de vidange

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015081881A1 (fr) * 2013-12-06 2015-06-11 谢水清 Drain de sol pour le drainage d'un même etage resistant aux odeurs du type a joint hydraulique hermetiquement ferme a action de longue duree

Also Published As

Publication number Publication date
DK1561869T3 (da) 2007-07-02
DE602005000886D1 (de) 2007-05-31
ATE360120T1 (de) 2007-05-15
EP1561869A3 (fr) 2006-05-10
EP1561869A2 (fr) 2005-08-10
DE602005000886T2 (de) 2008-01-17

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