WO2008039063A1 - Dispositif et système permettant de purger l'eau d'un réservoir de stockage - Google Patents

Dispositif et système permettant de purger l'eau d'un réservoir de stockage Download PDF

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Publication number
WO2008039063A1
WO2008039063A1 PCT/NL2007/000242 NL2007000242W WO2008039063A1 WO 2008039063 A1 WO2008039063 A1 WO 2008039063A1 NL 2007000242 W NL2007000242 W NL 2007000242W WO 2008039063 A1 WO2008039063 A1 WO 2008039063A1
Authority
WO
WIPO (PCT)
Prior art keywords
storage tank
moment
closing member
transmitting member
closing
Prior art date
Application number
PCT/NL2007/000242
Other languages
English (en)
Inventor
Johannus Donaes Jacobus Platteel
Sjoerd Peter Wouda
Original Assignee
Ecoplay International B.V.
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 Ecoplay International B.V. filed Critical Ecoplay International B.V.
Publication of WO2008039063A1 publication Critical patent/WO2008039063A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/003—Grey water flushing systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl

Definitions

  • the present invention relates to a device for draining water from a storage tank, and to a system provided with such a device .
  • the present invention therefore has for its object to provide a device for draining water from a storage tank which avoids the above stated problems and wherein, particularly after a flushing, less water remains behind in the storage tank than is the case with conventional draining systems.
  • the device for draining water from a storage tank according to the invention comprising:
  • a closing member which is arranged movably between a first position closing a discharge opening in a bottom of the storage tank and a second position leaving the discharge opening substantially clear; and - opening means for keeping the second position open during draining of the storage tank.
  • the device according to the present invention comprises opening means which hold back the closing member when the resultant upward force - which is the sum of the pushing force of the water and the upward force according to Archimedes' law - exerted on the closing member is smaller than the force of gravity acting on the closing member
  • the closing member according to the device of the present invention will remain longer than is the case in conventional systems in a position in which the discharge opening to the discharge conduit is not closed.
  • the opening means according to the invention are additional compared to a conventional system. In conventional systems the closing member will be displaced to a closing position when the resultant upward force is smaller than the force of gravity acting on the closing member.
  • the device according to the present invention holds the closing member for a longer time in a non-closing position, more water will be drained via the discharge opening and the discharge conduit, whereby less water remains behind in the storage tank than is the case with conventional flushing systems .
  • the opening means pass through an unstable intermediate position between the first position of the closing member closing the discharge opening and the second position of the closing member leaving the discharge opening clear. Because it requires some effort to pass through this unstable intermediate position, which is a ⁇ dead point', the opening means are suitable for at least retaining for a longer time the second position of the closing member leaving the discharge opening clear. More water can hereby be drained via the discharge opening.
  • the opening means comprise a moment-transmitting member which is arranged pivotally on the storage tank and which is connected pivotally to the closing member, and tensioning means arranged between the moment-transmitting member and the storage tank.
  • the opening means By embodying the opening means as a pivotable moment-transmitting member with tensioning means a system is provided which is able to hold the closing member temporarily in an open position in mechanical manner to enable complete or almost complete emptying of the storage tank. Because use is made of a mechanical principle, this preferred embodiment has the advantage of being a reliable, robust and energetically favourable embodiment requiring little maintenance. Because the system operates in purely mechanical manner, the system does not consume any electrical energy due to the absence of electricity and the danger of short-circuiting moreover need not be taken into account.
  • the moment-transmitting member comprises a first pivot point at which the moment-transmitting member is pivotally connected to the closing member, a second pivot point at which the moment-transmitting member is pivotally connected to the storage tank, and a fixing point at which the moment-transmitting member is connected to the tensioning means, and wherein the two pivot points, together with the fixing point, define a plane.
  • the fixing point is situated some distance from a line through the first and second pivot points .
  • a moment-transmitting member is provided which is adapted such that, depending on the position in which the closing member is situated, a determined moment is exerted on the closing member by the moment-transmitting member.
  • the moment-transmitting member is adapted such that a moment is then exerted on the closing member which is able, together with the resultant upward force resulting from the pushing force and Archimedes' law, to overcome the force of gravity and hold the closing member open in a position leaving clear the discharge opening in the bottom of the storage tank.
  • the distance between the second pivot point and the fixing point of the moment-transmitting member is smaller than the distance between the fixing point of the moment-transmitting member and the fixing point of the storage tank between which the tensioning means are arranged.
  • first and second pivot points and the fixing point have a relative position such that during use a moment exerted on the closing member by the moment-transmitting member changes sign, wherein the moment-transmitting member passes through the unstable intermediate position, as the closing member progresses through the movement from the second position substantially holding open the discharge opening to the first position substantially closing the discharge opening.
  • the closing member is a substantially elongate hollow body.
  • the closing member By giving the closing member an elongate and hollow form it can function as an overflow channel for disposing of excess water fed to the storage tank. An excess of water flows into the closing member at the top and is discharged through the hollow of the closing member to the discharge conduit .
  • the tensioning means comprise a spring or an elastic .
  • the device according to the present invention can apply a moment to the closing member in energetically favourable manner via the moment-transmitting member.
  • the device comprises adjusting means which are adapted to fix the tensioning means in different positions on the storage tank. Through the arrangement of adjusting means it is possible to fix the tensioning means in different positions, this making it possible to influence the tensioning force exerted by the tensioning means on the moment-transmitting member and in this way to adjust as desired the moment exerted by the moment-transmitting member on the closing member. A flexibly adjustable system is obtained in this way.
  • the device further comprises a drive member which is arranged between the storage tank and the moment-transmitting member and which is adapted to move the closing member counter to a moment exerted on the closing member by the moment-transmitting member, and a control unit for controlling the drive member.
  • this drive member can counteract the moment exerted by the tensioning means on the moment-transmitting member and push the moment-transmitting member over its "dead point' or "transition point' characterizing the unstable intermediate position.
  • the moment herein changes sign so that the closing member can move to a position closing the storage tank.
  • a control unit is arranged for controlling the drive member, for instance at a preset time interval after emptying of the storage tank has been activated. It is noted that the drive member can also drive the closing member directly instead of indirectly via the moment-transmitting member.
  • the device further comprises a sensor for sensing the water level in the storage tank, and the control unit is adapted to control the drive member subject to the water level present in the storage tank sensed by the sensor.
  • a more flexibly adjustable system is obtained by adding a sensor.
  • the device comprises a sensor for sensing the water level in the storage tank, and a control unit for controlling the opening means subject to the water level present in the storage tank sensed by the sensor.
  • a system is obtained in this manner which is able to control the opening means without tensioning means. It is for instance possible to envisage an electric motor activating means which engage with the closing member for the purpose of holding this member temporarily upward under the control of the control unit.
  • the opening means comprise at least an electromagnet which is connected to the control unit and which is adapted to hold the closing member in an open position subject to a signal received by the control unit.
  • the closing member By embodying the opening means as an electromagnet the closing member can, when it is also provided with a magnetic part, be held in a raised position by energizing the electromagnet with the control unit. This provides a practical alternative embodiment.
  • the present invention further relates to a system for the reuse of greywater, wherein a device according to any of the embodiments described in this patent specification is applied.
  • the most important advantage of the present invention is that lightly contaminated water can be wholly drained, and a system is thereby provided which is less susceptible to odour nuisance and infection.
  • the present invention therefore relates particularly to systems which reuse greywater.
  • Figure 1 shows a cross-sectional front view of a preferred embodiment for draining water from a storage tank according to the present invention in a first situation, wherein the storage tank is filled with water;
  • Figure 2 shows the device of figure 1 in a second situation
  • Figure 3 shows the device of figure 1 in a third situation
  • Figure 4 shows the device of figure 1 in a fourth situation
  • Figure 5 is a front view of a second embodiment of the present invention.
  • Figure 6 is a front view of a third embodiment of the present invention.
  • cistern 2 has an upper wall 4 which can also function as cover, side walls 6, a bottom 12 and (not shown) rear wall 8 and front wall 10.
  • cistern 2 has an upper wall 4 which can also function as cover, side walls 6, a bottom 12 and (not shown) rear wall 8 and front wall 10.
  • a side wall 6 in figure 1 are means for supplying water 14 which comprise an external feed conduit 16, closing means 18 and an internal feed conduit 20.
  • Such water supply means 14 can also be arranged in one of the other walls, such as for instance rear wall 8.
  • Closing means 18 of water supply means 14 are operated by means of a switching mechanism 22 comprising a float 24 and arms 26 and 28 which rotate about a pivot point 30.
  • a switching mechanism 22 comprising a float 24 and arms 26 and 28 which rotate about a pivot point 30.
  • a discharge opening 32 Arranged in bottom 12 of cistern 2 is a discharge opening 32 to which is connected a discharge conduit 34.
  • discharge conduit 34 is closed by a flush pipe 36 which comprises a seal 38 on its side located close to bottom 12.
  • operating handle 60 By means of moving operating handle 60 in upward direction manually or using a drive member the device is activated and a toilet connected to discharge conduit 34 is provided with water from cistern 2.
  • Operating handle 60 is herein moved away from upper wall 4 of cistern 2 whereby, via an operating rod 58 situated between operating handle 60 and flush pipe 36, flush pipe 36 is moved upward from the bottom 12 of cistern 2 such that discharge opening 32 in bottom 12 is left clear and water is drained from cistern 2 to the toilet via discharge conduit 34.
  • Flush pipe 36 is situated in a first position in which it closes the discharge opening 32 to discharge conduit
  • the device further comprises a knee-piece 44 mounted on cistern 2 at a pivot point 46. Knee-piece 44 is connected pivotally to flush pipe 36 at a first pivot point 42. Knee-piece 44 is a further connected at its fixing point 50 to a spring 52 arranged between fixing point 50 of knee-piece 44 and a fixing point 54 of cistern 2. It will be apparent to a skilled person that other tensioning means, such as for instance an elastic, can also be applied instead of a spring.
  • the fixing point 54 at which spring 52 is mounted on cistern 2 takes an adjustable form.
  • fixing point 54 is displaceable using adjusting means 56, which in this embodiment comprise a plurality of recesses.
  • the unstable intermediate position, where the moment exerted by spring 52 on knee-piece 44 changes sign, will shift due to displacement of fixing point 54.
  • the system can be adjusted in this manner.
  • Figure 2 shows the situation in which operating handle 60 is moved upward, whereby flush pipe 36 is also moved in upward direction away from bottom 12 of cistern 2 by means of operating rod 58.
  • flush pipe 36 is subjected to an upward force which is increased when float 37 is wholly or partially submerged in the water.
  • Float 37 can be embodied in the form of a bell.
  • opening means which exert an upward force on flush pipe 36
  • flush pipe 36 also undergoes, in addition to the upward force according to Archimedes' law and the pushing force, an upward force which is applied by the opening means.
  • these opening means comprise knee-piece 44 which exerts a moment on flush pipe 36.
  • the spring 52 is adapted such that it is able, independently of the upward force exerted by Archimedes' law and the pushing force on flush pipe 36, to hold flush pipe 36 in a position in which the discharge opening 32 is open.
  • a control unit 65 is provided with a time switch which is activated when flushing of cistern 2 begins. After a determined preset period of time the control unit 65 will drive knee-piece 44 via a plunger 66 such that the moment exerted by knee-piece 44 on flush pipe 36 is overcome and flush pipe 36 moves to a position substantially closing discharge opening 32. It is of course also possible for flush pipe 36 to be driven directly by plunger 66.
  • the device further comprises a sensor 63 which senses the water level present in cistern 2.
  • This sensor replaces the time switch of the previous embodiment.
  • this sensor 63 generates a signal to a control unit 65 which drives knee-piece 44 via a plunger 66 such that the moment exerted by knee-piece 44 on flush pipe 36 is overcome and flush pipe 36 can move to a position substantially closing discharge opening 32.
  • the water supplied to cistern 2 is collected in a receiving vessel.
  • This receiving vessel is connected to knee-piece 44 such that the water supplied to cistern 2 is used to overcome the moment applied to knee-piece 44 by spring 52.
  • the receiving vessel is for instance mounted pivotally on cistern 2 and is filled with water flowing into cistern 2, wherein the receiving vessel, when it has taken up a determined volume of water, tips over and herein exerts a moment on flush pipe 36 via a mechanical connection such that the moment exerted by knee-piece 44 on flush pipe 36 is temporarily overcome and flush pipe 36 moves into a position closing discharge opening 32.
  • the mechanical system is replaced by an electrical system.
  • a sensor 63 which senses the water level in cistern 2 and transmits the sensed water level as a signal via wiring 64 to control unit 65, which controls the opening means.
  • the opening means comprise at least an electromagnet 61 which is connected to the control system and which is adapted to hold flush pipe 36 in an open position subject to a signal received by control unit 65.
  • a magnetic part 62 is also arranged on flush pipe 36 for this purpose .

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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)
  • Aviation & Aerospace Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

La présente invention concerne un dispositif permettant de purger l'eau d'un réservoir de stockage, comportant : un organe de fermeture qui est arrangé de manière mobile entre une première position fermant une ouverture de décharge dans un fond du réservoir de stockage et une deuxième position laissant l'ouverture de décharge sensiblement dégagée ; et un moyen d'ouverture permettant de maintenir la deuxième position ouverte pendant la purge du réservoir de stockage. L'invention concerne également un système permettant de réutiliser les eaux usées domestiques, système comportant un tel dispositif.
PCT/NL2007/000242 2006-09-25 2007-09-25 Dispositif et système permettant de purger l'eau d'un réservoir de stockage WO2008039063A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1032567A NL1032567C2 (nl) 2006-09-25 2006-09-25 Inrichting voor het uit een opslagtank afvoeren van water.
NL1032567 2006-09-25

Publications (1)

Publication Number Publication Date
WO2008039063A1 true WO2008039063A1 (fr) 2008-04-03

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ID=37895811

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2007/000242 WO2008039063A1 (fr) 2006-09-25 2007-09-25 Dispositif et système permettant de purger l'eau d'un réservoir de stockage

Country Status (2)

Country Link
NL (1) NL1032567C2 (fr)
WO (1) WO2008039063A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010142950A1 (fr) * 2009-06-08 2010-12-16 Ove Arup & Partners International Ltd Système de collecte d'eau de pluie
EP3138970A1 (fr) * 2015-09-01 2017-03-08 Geberit International AG Dispositif de rinçage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811432A (en) * 1987-06-29 1989-03-14 Harris John L Flush tank water saver
US4907302A (en) * 1988-02-01 1990-03-13 Fluidmaster Inc. In-field installable closing delay cup
DE20104033U1 (de) * 2000-05-18 2001-06-21 Geberit Technik Ag, Jona Spülkasten für eine Klosettanlage
EP1426502A2 (fr) * 2002-11-29 2004-06-09 VALSIR S.p.A. Réservoir de chasse d'eau à commande électronique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811432A (en) * 1987-06-29 1989-03-14 Harris John L Flush tank water saver
US4907302A (en) * 1988-02-01 1990-03-13 Fluidmaster Inc. In-field installable closing delay cup
DE20104033U1 (de) * 2000-05-18 2001-06-21 Geberit Technik Ag, Jona Spülkasten für eine Klosettanlage
EP1426502A2 (fr) * 2002-11-29 2004-06-09 VALSIR S.p.A. Réservoir de chasse d'eau à commande électronique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010142950A1 (fr) * 2009-06-08 2010-12-16 Ove Arup & Partners International Ltd Système de collecte d'eau de pluie
GB2470906B (en) * 2009-06-08 2014-04-16 Ove Arup & Partners Internat Ltd Rainwater harvesting system
EP3138970A1 (fr) * 2015-09-01 2017-03-08 Geberit International AG Dispositif de rinçage

Also Published As

Publication number Publication date
NL1032567C2 (nl) 2008-03-26

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