EP2757205B1 - Drain - Google Patents

Drain Download PDF

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Publication number
EP2757205B1
EP2757205B1 EP14151269.9A EP14151269A EP2757205B1 EP 2757205 B1 EP2757205 B1 EP 2757205B1 EP 14151269 A EP14151269 A EP 14151269A EP 2757205 B1 EP2757205 B1 EP 2757205B1
Authority
EP
European Patent Office
Prior art keywords
drain
flap
outlet
flexible
opening
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
EP14151269.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2757205A1 (en
Inventor
Jurgen Hendrik Peter Joseph Keizers
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.)
Easy Sanitary Solutions BV
Original Assignee
Easy Sanitary Solutions BV
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 Easy Sanitary Solutions BV filed Critical Easy Sanitary Solutions BV
Priority to PL14151269T priority Critical patent/PL2757205T3/pl
Publication of EP2757205A1 publication Critical patent/EP2757205A1/en
Application granted granted Critical
Publication of EP2757205B1 publication Critical patent/EP2757205B1/en
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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
    • E03F5/0407—Floor drains for indoor use
    • E03F5/0408—Floor drains for indoor use specially adapted for showers
    • 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

Definitions

  • the invention relates to a drain according to the preamble of claim 1.
  • a drain is for example known from US 2008 104910 .
  • a siphon which seals the outlet pipe against stench nuisance is usually provided between the outlet opening and the outlet pipe.
  • additional space has to be made in the floor close to the outlet opening in order to accommodate the siphon.
  • a usual siphon is based on the presence of a water seal.
  • a water seal has to have a determined minimum height, in particular more than 5 centimetres.
  • the height of a siphon is hereby easily 7 to 8 centimetres, while the diameter of an outlet pipe is no more than about 4 or 5 centimetres. It is therefore the siphon which usually determines the overall depth of a drain.
  • Evaporation of the water from the water seal can moreover take place, for instance when the drain is not used for some time. Once the water has evaporated from the water seal, odour from the outlet pipe can escape through the siphon.
  • Liquid which is carried via the inlet opening into the drain enters the outlet space because the one or more unidirectional seals move into free passage position due to the presence of this liquid.
  • the one or more unidirectional seals are thus unidirectional seals which can be operated by liquid for draining.
  • the liquid is drained from the outlet space via the outlet opening.
  • the one or more unidirectional seals together close the connection between the outlet opening and the inlet opening. With the one or more unidirectional seals in the starting position gas with an unpleasant odour in the outlet space can no longer diffuse through the inlet opening to the outside because of the closed connection.
  • Gas with an unpleasant odour which can no longer diffuse to the outside through the inlet opening will no longer enter the space in which the drain is arranged for the purpose of draining liquid.
  • gas with an unpleasant odour can therefore no longer diffuse through the inlet opening from the outlet opening, and so also not from an outlet pipe connected thereto, via the closed part of the connection.
  • the throughflow of fluids (gases and liquids) from the outlet opening to the inlet opening is prevented because a unidirectional seal is used.
  • the throughflow capacity of the one or more unidirectional seals does not depend on the size of the outlet pipe and it is possible to opt for a greater capacity, whereby the resistance to liquid flowing away through the drain decreases and the capacity for draining liquid thus increases.
  • the surface area of the passage opening is preferably greater than the surface area of the outlet opening.
  • the full throughflow capacity of the outlet pipe can moreover be used, which is not the case if a silicone seal is present in this same opening.
  • This is advantageous because outlet pipes are incorporated in the floor and therefore usually have a small diameter and consequently also a small drainage capacity.
  • the outlet pipe although it is possible to opt for a greater capacity. It is of course possible in the prior art to enlarge the diameter of the outlet pipe in order to achieve the same throughflow. This however requires additional operations and increases the overall depth and size of the outlet pipe and drain.
  • the drain can be connected to an outlet pipe, wherein little overall height is necessary for the drain. If the siphon is omitted it is moreover no longer possible for the siphon to become empty due to underpressure in the outlet pipe or due to evaporation of liquid from the water seal of the siphon. If the siphon is omitted the siphon no longer forms a hindrance to the drainage capacity, while it is precisely the presence of a siphon which limits the drainage capacity because the siphon provides resistance to a free throughflow. In the absence of a siphon the problem of cleaning the siphon, optionally via a narrow inlet opening in the drain, is of course also obviated.
  • the one or more unidirectional seals being flexible flaps can be of different materials and return to the starting position on the basis of different principles.
  • a drain according to the invention is elongate, wherein the direction along which a drain according to the invention extends can also have an elongate curved form and even a closed form, and for instance run in a circular form for the purpose of fully enclosing a shower space or shower cubicle.
  • the manufacture of the drain is simple because the connection extends along the direction in which the drain extends. It is moreover easy in this way to find space for one or more unidirectional seals which are together sufficiently large to have a passage opening with a surface area greater than the surface area of the outlet opening.
  • An elongate drain is easy to produce, for instance via extrusion.
  • An elongate connection in this drain is easy to produce, for instance during the extrusion of the elongate drain or by milling or sawing an elongate opening in the wall of an elongate drain.
  • each of the flexible flaps comprises an elastically bendable flap configured to bend to the free passage position under pressure from liquid for draining and to bend back elastically in the direction of the starting position in the absence of pressure from liquid for draining.
  • the elastically bendable flap bends elastically, it acquires a curve during bending along which the liquid runs and the necessity of an abrupt change in direction of the liquid as it approaches the seal is therefore small, and there is only a low risk of fouling, such as hairs, being left behind. When there are abrupt changes in direction there is after all a risk of locations where the throughflow speed is low, which is precisely how fouling gets left behind.
  • materials from which the elastically bendable flap can be manufactured are natural and synthetic rubber and silicone or other flexible and resilient materials, including elastomers having a shape memory.
  • the elastically bendable flap can have a uniform or non-uniform thickness in order to thus vary the quantity of water at which the one or more unidirectional seals move out of the starting position and no longer close the connection.
  • the drain comprises a closing surface which is partially enclosed by the connection and the elastically bendable flap comprises a free edge configured to be pressed against the closing surface in the starting position.
  • the closure of the connection becomes more robust and better in the case of higher overpressure in the outlet space than in the inlet opening. There is moreover less chance of stench leakage through the unidirectional seal.
  • the one or more flexible flaps are removably attached to the drain.
  • the flexible flaps are removably attached they can be cleaned or replaced. After removal of the unidirectional seals it is moreover easier to gain access via the inlet opening to the outlet space for cleaning thereof and to an outlet pipe connected to the outlet opening for cleaning or unblocking thereof.
  • the one or more unidirectional seals can be removably attached via fixing means such as screws, but for instance also by means of adhesion.
  • the one or more flexible flaps are arranged on a removable profile.
  • the profile is removable it is possible to remove the one or more flexible flaps, for instance in order to gain access to the collecting tray for cleaning thereof and to an outlet pipe connected to the outlet opening for cleaning or unblocking thereof.
  • Arranging the one or more flexible flaps on the profile makes it possible to manufacture the drain and only later, for instance during installation of the drain, to determine the position of the inlet opening and arrange the one or more flexible flaps via the inlet opening.
  • the one or more flexible flaps comprise a flexible flap with a first free end and a further flexible flap with a further free end, configured to lie with the free end and the further free end against each other in the starting position.
  • the flexible flap and a further flexible flap lying with their respective first free end and further free end against each other when there is no water to drain makes it possible to close different sizes of connection with standard sizes of unidirectional seal.
  • the ends lying against each other here ensures a robust and certain seal with little risk of stench leakage between the flexible flap and the further flexible flap.
  • the flexible flap and the further flexible flap each have two outer ends, and the flexible flap and the further flexible flap are clamped between a wedge and a wedge block at each of the two outer ends.
  • Clamping the elongate flexible flap and the further flexible flap between wedges and wedge blocks makes them very simple to arrange and remove by simply pressing on or removing the wedge. If desired the flexible flap and the further flexible flap can be clamped under tensile stress, whereby it is possible to vary the pressure at which they open in the presence of water for draining.
  • the drain is formed from an outlet pipe, wherein the inlet opening is arranged in the wall in longitudinal direction.
  • the at least one flexible flap is then arranged in this inlet opening. Because the flexible flap is placed in longitudinal direction in the wall of the outlet pipe the throughflow is not limited, as is the case with a flexible flap arranged in the throughflow area as in the prior art.
  • the flow through the flexible flap does not take place axially, as in the prior art, but in an at least partially radial and/or tangential direction.
  • the throughflow of drains according to the invention is further not limited by a siphon or by a seal arranged in the throughflow area of the outlet pipe, the throughflow speed of the water will be higher, whereby the outlet space of the drain and the conduits remain cleaner.
  • siphon with a central outlet opening the water will be collected, whereby the speed is reduced.
  • the water is not carried to a central point but can flow via the unidirectional seals into the outlet space without being substantially decelerated.
  • a further advantage of a drain formed from an outlet pipe is that the overall depth is determined only by the diameter of the pipe.
  • the drain can moreover be formed in a continuous outlet pipe, whereby different drains can easily be placed in series.
  • this drain can also be incorporated into a shower plate, shower tray or even a washbasin.
  • drain 1 is elongate ( figure 1 ).
  • Drain 1 has a tubular collecting tray 2 with connecting openings 3, 4, 5 at the end surfaces and in the centre which can be used as desired as outlet opening for draining water out of the tubular collecting tray 2.
  • connecting openings 3, 4, 5 two or more connecting openings 3, 4, 5 can be in use simultaneously as outlet opening in order to increase the drainage capacity.
  • one or two of the connecting openings 3, 4, 5 are in use to mutually connect different components such as drains in series while making use of only one outlet opening.
  • another element is situated at each outlet opening and one of these other elements is connected to an outlet pipe. It will be apparent that the connecting opening to which this element is connected is deemed the outlet opening for the drain.
  • Connecting opening 4 is used in this embodiment as outlet opening.
  • Collecting tray 2 is provided on the upper side with an inlet opening 6 bordered by a horizontal flange 7.
  • a sealing membrane can for instance be arranged on this flange 7.
  • Figure 2 shows a cross-sectional view of the embodiment according to figure 1 .
  • an elastically bendable flap 8 Arranged in inlet opening 6 is an elastically bendable flap 8 which is arranged with the upper side on a wall 9 adjacently of inlet opening 6. Wall 9 forms together with a further wall 10 a boundary of the connection between the inlet opening and an outlet space 12.
  • the elastically bendable flap 8 is manufactured from silicone.
  • a free lower edge of flap 8 lies in the starting position against a closing surface on the inner side of the tubular collecting tray 2 and can be pressed away by the weight of water flowing in via inlet opening 6. Following inflow via inlet opening 6 the weight presses on the elastically bendable flap 8, whereby it bends to a free passage position in the presence of water for draining.
  • the free passage position is shown in broken lines.
  • passage opening 11 provides space for passage of liquid for draining.
  • Passage opening 11 is also elongate, as is flexible flap 8.
  • the surface area of passage opening 11 becomes greater than that of outlet opening 4, among other reasons because of the length of passage opening 11 in the direction perpendicularly of the figure.
  • the space in the drawing under flexible flap 8 in collecting tray 2 is an outlet space for liquid.
  • the elastically bendable flap 8 closes the connection between the outlet space and the inlet opening.
  • Flexible flap 8 hereby functions as a unidirectional seal for the connection between inlet opening 6 and outlet space 12.
  • drain 20 comprises a tubular drain tray 21.
  • a cross-section of this embodiment in use is shown in figure 3A .
  • the drain is elongate and extends in the direction perpendicularly of that of the cross-section.
  • the tubular drain tray 21 comprises a first wall 23 and a second wall 24 which bound an inlet opening 22 on either side.
  • First wall 23 and second wall 24 are provided with a horizontal flange 25 on which the tiles 26 of a finishing floor rest during use.
  • an elastically bendable flap 27 Arranged in inlet opening 22 is an elastically bendable flap 27 which is manufactured from silicone and which lies with a first free end 127 against first wall 23 and with a second free end 128 against second wall 24. In the centre of the elastically bendable flap 27 the elastically bendable flap 27 is attached to a bridge part 28 which spans inlet opening 22 in a direction at a right angle to the drawn cross-section.
  • the elastically bendable flap 27 functions as unidirectional seal. In the drawn starting position the elastically bendable flap closes a first passage opening on the side of the first free end 127 and a second passage opening on the side of the second free end 128.
  • the tubular drain tray 21 bounds together with the elastically bendable flap 27 an outlet space to an outlet opening (not drawn).
  • a drain 30 is shown in figure 3B .
  • connection 37 Arranged on profile 33 at the position of a connection 37 are two elastically bendable flaps 35, 36 which each lie with a free end against each other when they are each in a starting position. Because they lie against each other, they together close connection 37.
  • the two elastically bendable flaps 35, 36 are manufactured from silicone and function as unidirectional seals. Water for draining admitted via inlet opening 32 can press the two elastically bendable flaps 35, 36 apart, after which it can flow into the tubular drain tray 31 via a passage opening then formed between the two elastically bendable flaps 35, 36.
  • the tubular drain tray 31 hereby comprises an outlet space to an outlet opening (not drawn) .
  • Figure 5 shows how a seal is obtained at the end of the elongate, elastically bendable flaps.
  • the elastically bendable flaps 35, 36 are clamped by a wedge 96 and a wedge block 97 at the two outer ends lying at a distance from each other in the direction in which the elongate drain extends.
  • a further embodiment of the invention is formed by a drain 40.
  • This drain is shown in figure 3C .
  • a first wall 43 lies adjacently of an inlet opening 45 and a second wall 44 lying opposite the first wall also lies adjacently of the inlet opening.
  • a first flap 41 and a second flap 42 are likewise provided in this embodiment.
  • First flap 41 is arranged directly on first wall 43.
  • Second flap 42 is arranged directly on second wall 44.
  • First flap 41 and second flap 42 function as unidirectional seals.
  • the second flap is straight in the starting position and the first flap is bent in the starting position such that it spans the distance between first wall 43 and second wall 44. In their respective starting positions the first flap and the second flap hereby close the whole passage from the outlet space to inlet opening 45.
  • first flap 41 and second flap 42 exerts pressure on first flap 41 and second flap 42, whereby at least one of the two flaps 41, 42 will bend out of the starting position and into a free passage position, drawn in broken lines. In this situation the liquid will flow via a passage opening 47 to an outlet space in collecting pipe 46 and from here to an outlet opening (not drawn).
  • the asymmetrical initial shapes of first flap 41 and second flap 42 can impart direction to the water flowing into collecting pipe 46, which can improve the further drainage of water.
  • FIG. 4A shows another embodiment of drain 50 according to the invention, once again during use.
  • Drain 50 has a collecting tray with a bottom 51, upright walls 52 and a horizontal flange 53.
  • bottom 51 of the collecting tray is an outlet opening to which an outlet pipe 54 is connected.
  • a sealing membrane 55 on which tiles 56 are arranged is provided on horizontal flange 53.
  • a height-adjustable adjusting frame 58 which seals against walls 52.
  • a bridge part 59 Further provided in inlet opening 57 is a bridge part 59 on which an elastically bendable flap 60 is arranged.
  • the elastically bendable flap 60 is manufactured from silicone.
  • This elastically bendable flap 60 has a free end 61, 62 on either side of bridge part 59. In the starting position the free ends lie against adjusting frame 58. In free passage position a free end 61 lies clear, or both free ends lie clear, of adjusting frame 58. The figure shows that a free end 61 lies clear of adjusting frame 58, wherein a passage opening 63 is formed. Adjusting frame 58 is arranged as padding.
  • FIG. 4B shows an alternative embodiment of drain 70.
  • This embodiment 70 has a collecting tray 71 with an outlet opening to which an outlet pipe 72 is connected.
  • a bridge part 74 having a U-shaped cross-section with two legs is arranged in inlet opening 73 of drain 70.
  • elastically bendable flaps 75, 76 Arranged on the mutually facing sides of the legs of this U-shape are elastically bendable flaps 75, 76 which lie with free ends in a direction toward each other against the bottom of collecting tray 71.
  • the elastically bendable flaps are manufactured from silicone.
  • FIG. 4C shows a further alternative embodiment of a drain 80 according to the invention.
  • Drain 80 likewise has a collecting tray 81 with an outlet opening to which an outlet pipe 82 is connected.
  • a grating 83 with a number of inlet openings 84 is arranged in collecting tray 81.
  • Grating 83 here seals against collecting tray 81.
  • each of the elastically bendable flaps 85, 86 and the further pairs close a part of the connection between the outlet space and inlet openings 84. Because the free ends are in mutual contact, they together close the whole connection between the outlet space and inlet openings 84.
  • FIG 4D shows a further embodiment of a drain 90 according to the invention.
  • Drain 90 once again has a collecting tray 91 with a grating 92 therein. This grating 92 lies against the upright walls of collecting tray 91.
  • Figure 4D shows a cross-section perpendicularly of the direction in which the elongate drain extends.
  • inlet openings 93 are provided in grating 92. Arranged on either side of inlet openings 93 are downward directed, elongate elastically bendable flaps 94, 95 with the free ends lying against each other in a starting position.
  • the downward directed elastically bendable flaps 94, 95 are manufactured from silicone.
  • each of the elastically bendable flaps 94, 95 closes a part of the connection between the outlet space and inlet openings 93. Together they close the whole connection in the starting position and thus ensure a complete seal against stench.
  • Figure 5 also shows for this exemplary embodiment how a seal is obtained at the end of the elongate, elastically bendable flaps.
  • the elastically bendable flaps 94, 95 are clamped by a wedge 96 and a wedge block 97 at both outer ends lying at a distance from each other in the direction in which the elongate drain extends.
  • the unidirectional seal serves to close an elongate inlet opening, it is attached at right angles to the longitudinal direction of the inlet opening and bends in the longitudinal direction.
  • the flexible bendable flaps are manufactured from silicone. It is possible according to the invention that a material other than silicone is used to manufacture a flexible bendable flap.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sink And Installation For Waste Water (AREA)
EP14151269.9A 2013-01-17 2014-01-15 Drain Active EP2757205B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14151269T PL2757205T3 (pl) 2013-01-17 2014-01-15 Odpływ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2010141A NL2010141C2 (nl) 2013-01-17 2013-01-17 Afvoergoot.

Publications (2)

Publication Number Publication Date
EP2757205A1 EP2757205A1 (en) 2014-07-23
EP2757205B1 true EP2757205B1 (en) 2018-03-07

Family

ID=47790474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14151269.9A Active EP2757205B1 (en) 2013-01-17 2014-01-15 Drain

Country Status (6)

Country Link
EP (1) EP2757205B1 (es)
DK (1) DK2757205T3 (es)
ES (1) ES2666653T3 (es)
NL (1) NL2010141C2 (es)
NO (1) NO2757205T3 (es)
PL (1) PL2757205T3 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2023131B1 (nl) 2019-05-14 2020-12-01 Easy Sanitary Solutions Bv Langwerpige siliconen afsluiter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7211425A (es) * 1972-08-21 1974-02-25
US6719004B2 (en) * 2001-06-19 2004-04-13 Donald G. Huber Check valve floor drain
US20080104910A1 (en) * 2006-11-03 2008-05-08 Dni Realty, Llc Basement floor drain and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
NL2010141C2 (nl) 2014-07-21
DK2757205T3 (en) 2018-05-07
PL2757205T3 (pl) 2018-07-31
NO2757205T3 (es) 2018-08-04
EP2757205A1 (en) 2014-07-23
ES2666653T3 (es) 2018-05-07

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