EP3772553A1 - Appareil d'alimentation pour un réservoir de chasse - Google Patents

Appareil d'alimentation pour un réservoir de chasse Download PDF

Info

Publication number
EP3772553A1
EP3772553A1 EP20189458.1A EP20189458A EP3772553A1 EP 3772553 A1 EP3772553 A1 EP 3772553A1 EP 20189458 A EP20189458 A EP 20189458A EP 3772553 A1 EP3772553 A1 EP 3772553A1
Authority
EP
European Patent Office
Prior art keywords
feeding device
outlet
filling pipe
valve assembly
water
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.)
Pending
Application number
EP20189458.1A
Other languages
German (de)
English (en)
Inventor
Bruno DOS SANTOS PEREIRA
Vitor António Ferreira da Costa
Antonio Manuel Gameiro Lopes
Leonel Pedro Vasconcelos Machado
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.)
Oli Sistemas Sanitarios SA
Original Assignee
Oli Sistemas Sanitarios SA
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 Oli Sistemas Sanitarios SA filed Critical Oli Sistemas Sanitarios SA
Publication of EP3772553A1 publication Critical patent/EP3772553A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • E03D1/32—Arrangement of inlet valves
    • 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
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/102—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using an air gap device
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe

Definitions

  • This invention relates to a feeding device for a flush tank of a sanitary appliance.
  • a flush tank of a sanitary appliance in addition to a discharge valve, is also generally provided with a feeding device connected to the water supply network for the filling of the tank after the water has been discharged into the sanitary appliance.
  • a commonly used feeding device comprises, in general terms, an inlet tube having a fitting for connection to the water supply network, a valve assembly housed in a casing and controlled by a float, an outlet tube that lets the water that has flowed through the valve assembly into the tank.
  • the valve assembly in particular, may be of the so-called back pressure or diaphragm closing type, in which the float operates a cut-off acting on a vent nozzle of a back pressure chamber delimited by a diaphragm or membrane; the diaphragm separates two conduits from each other, connected to the inlet tube and the outlet tube, respectively.
  • the float as a result of the discharge of water from the tank, falls, it opens the vent nozzle, and the diaphragm elastically deforms under the water pressure and puts the conduits into communication with each other, thus allowing the passage of water and the filling of the tank.
  • the float rises, it closes the vent nozzle, and the pressure in the back pressure chamber balances that of the incoming water and causes the diaphragm to separate the conduits again, stopping the water from entering the tank.
  • the feeding devices must be equipped with systems to prevent backflow to the water supply network in the event of malfunctions.
  • the valve assembly is provided with an air outlet opening, communicating with the outside of the feeding device to allow the exit of air from the feeding device and therefore avoid any suction of water from the tank.
  • the presence of the air outlet opening causes, during normal operation of the feeding device, the formation of a water/air mixture in the feeding device. Entry of air into the water flow circulating in the feeding device can cause turbulent motion phenomena with a consequent increase in noise during the filling of the tank.
  • Some anti-backflow regulations for example the one that recently came into force in the United Kingdom, are also particularly stringent and require specific measures to prevent the backflow of water into the water supply network.
  • these measures can be particularly complicated and costly to implement, resulting in complicated, poorly efficient, and extremely noisy feeding devices.
  • this invention relates to a feeding device for a flush tank, as defined essentially in the appended claim 1 and, in its additional features, in the dependent claims.
  • the feeding device in accordance with the invention not only meets the criteria laid down by the most stringent anti-backflow standards, like those in effect in the United Kingdom, by being effectively capable of preventing water from backflowing into the water supply network, but at the same time avoids the problems related to entry of air into the water flow circulating in the feeding device. In addition, it particularly reduces the noise during the filling of the tank, while being simple to manufacture and simple and reliable in its operation.
  • the reference number 1 indicates, as a whole, a feeding device for a flush tank (known and not shown for simplicity) of a sanitary appliance.
  • the feeding device 1 substantially extends along a longitudinal axis A, substantially vertical in use; here and below, the terms horizontal/vertical and high/low are understood to refer to the normal use position of the feeding device 1 in the flush tank.
  • the feeding device comprises an internally hollow body 2, a valve assembly 3 housed inside the body 2 and controlled by a float 4, a feeding pipe 5 that can be connected to a water supply network to carry a water flow to the valve assembly 3, and a filling pipe 6 through which the water flowing through the valve assembly 3 is fed into the tank.
  • the feeding pipe 5 and the filling pipe 6 are substantially orthogonal to each other, extending along respective axes orthogonal to each other.
  • the filling pipe 6 extends along the axis A and is, thus, substantially vertical in use and the feeding pipe 5 extends along a transverse axis B, which is perpendicular to the axis A and substantially horizontal in use, of the feeding device 1.
  • the feeding pipe 5 and the filling pipe 6 can be substantially parallel to each other and to the axis A, both basically extending vertically.
  • the valve assembly 3 is a back pressure valve assembly substantially known in and of itself.
  • valve assembly 3 is connected to an inlet conduit 7 and to an outlet conduit 8 and comprises: an internal connecting passage 9 connecting the inlet conduit 7 to the outlet conduit 8; an elastically deformable or movable discoidal diaphragm 10 selectively closing the passage 9; and a back pressure chamber 11 delimited by the diaphragm 10 and provided with a vent nozzle 12, which connects the back pressure chamber 11 to the outside of the body 2 and is closed by a movable cut-off 13 actuated by the float 4.
  • the inlet conduit 7 and the outlet conduit 8 are formed inside the body 2 and are respectively arranged downstream and upstream of the valve assembly 3 and, specifically, of the passage 9 and of the diaphragm 10 (in the direction of the normal circulation of the water that flows from the water supply network to fill the tank).
  • the diaphragm 10 keeps the passage 9 closed because the water pressure in the inlet conduit 7 is counterbalanced by the pressure inside the back pressure chamber 11, and the water in the inlet conduit 7 is unable to deform or move the diaphragm 10.
  • the nozzle 12 When the nozzle 12 opens, following a downward movement of the float 4 as a result of a lowering of the water level in the tank (i.e. when the water is discharged from the tank), the water pressure in the inlet conduit 7 exceeds the pressure in the back pressure chamber 11 and the diaphragm 10 elastically deforms or moves, thus opening the passage 9 and allowing the water to flow from the inlet conduit 7 to the outlet conduit 8 and from here, through the filling pipe 6, into the tank.
  • the float 4 ( Figure 1 ) is axially slidably mounted on a guide element 15 positioned outside the filling pipe 6 and is mechanically connected, for example by means of a lever mechanism 16, to the cut-off 13 cooperating with the nozzle 12 in order to control the operation of the valve assembly 3.
  • the inlet conduit 7 extends into the body 2 and connects the feeding pipe 5 to the passage 9.
  • the inlet conduit 7 substantially extends parallel to the axis B.
  • the outlet conduit 8 has an inlet 18 that communicates with the passage 9, and an outlet 19, arranged at a height (measured parallel to the axis A) greater than the inlet 18.
  • the outlet conduit 8 comprises an access portion 21, communicating with the passage 9 through the inlet 18 and, for example, substantially parallel to the axis B; a head 22 above, defining an inverted U-shaped passage 23 and provided with an outlet 19; and a connection portion 24 that connects the access portion 21 to the head 22 and is, for example, substantially parallel to the axis A.
  • the inlet 18 is, for example, formed through a wall 25 inside the body 2 substantially parallel to the axis A and perpendicular to the axis B; the outlet 19 is positioned in the head 22 and faces downwards and is axially aligned with a hollow 26 in the body 2, so that the outlet 19 directly faces, as better described below, the filling pipe 6.
  • the outlet 19 is provided with a flow regulator device 30 (or jet breaker), i.e. a device configured so as to adjust a liquid flow that flows through it, dividing the flow into a plurality of adjacent streams.
  • a flow regulator device 30 or jet breaker
  • the device 30 can be variously shaped: in the non-limiting example illustrated, the device 30 (shown in greater detail in Figure 6 ) comprises a cup-shaped body 31 housed in a site formed in the head 22 at the outlet 19, and a plurality of adjacent channels 32 formed in the cup-shaped body 31 and configured so as to divide the water flow that flows through the cup-shaped body 31 into a plurality of streams and to uniform and homogenise the water flow that flows through the cup-shaped body 31.
  • the cup-shaped body 31 extends along and around a central axis C, parallel to the axis A; and the channels 32 are substantially parallel to the axis C.
  • the channels 32 are defined by respective circular holes 33 that are formed to pass through the base wall 34 of the cup-shaped body 31 and arranged on concentric rings around the axis C of the cup-shaped body 31.
  • the holes 33 may be variously shaped and/or arranged.
  • the device 30 is configured so that the water flow that flows through the device 30, in particular the cup-shaped body 31, is divided into separate streams and takes on a substantially laminar motion overall.
  • the flow exiting has an aperture angle (understood as the angle formed by the flow in relation to the axis C) that is no greater than a prefixed angle, in particular approximately 20°.
  • the outlet conduit 8 is, in addition, provided with a pressurization element 35 ( Figure 5 ), positioned between the inlet 18 and the outlet 19 and housed, in particular, in the connection portion 24 of the outlet conduit 8.
  • the pressurization element 35 is configured so as to increase the pressure of the water flow that flows through the outlet conduit 8, for example, by reducing the passage cross-section inside the outlet conduit 8 and, in particular, in the connection portion 24.
  • the pressurization element 35 comprises a prismatic bar 36 that is substantially straight, extending, in particular, parallel to the axis A and having a plurality of longitudinal grooves 37 formed on an outer lateral surface of the bar 36 and defining, inside the outlet conduit 8 and, specifically, inside its connection portion 24, respective parallel ducts 38.
  • the grooves 37 are separated from each other by longitudinal ribs 39 that radially project from the bar 36.
  • the grooves 37 have curved cross sections, for example, shaped as an arc of a circle.
  • the grooves 37 have, at a longitudinal end of the pressurization element 35 facing towards the inlet 18, respective tapered inlet edges 40.
  • the pressurization element 35 is shaped so that the passage section available for the passage of fluid through the pressurization element 35 (the sum of the cross sections of the ducts 38) is smaller than the internal section of the outlet conduit 8 and, in particular, of the connection portion 24.
  • the filling pipe 6 extends along the axis A (or parallel to the axis A) between an upper end 41, equipped with a mouth 42 facing upwards, and a lower end 43 equipped with a water outlet opening 44.
  • the mouth 42 is positioned below the hollow 26 and faces and is aligned with the outlet 19, so that the water flow leaving the outlet 19 through the flow regulator device 30 is entirely directed inside the mouth 42 and, thus, into the filling pipe 6.
  • the mouth 42 has, advantageously, a cross section (perpendicular to the axis A) that is greater than the cross section of the outlet 19.
  • the filling pipe 6 is basically cylindrical and has a cross section that is smaller than the cross section of the mouth 42; and the filling pipe 6 comprises an upper mouth portion 45, positioned at the end 41 and provided with a mouth 42 and tapered downwards along the axis A.
  • the filling pipe 6 is preferably also provided with a flow deflection device 50 positioned inside the filling pipe 6.
  • the device 50 comprises a pair of inclined and opposite baffles 51, 52, slanted in relation to the axis A and spaced axially along the axis A.
  • the baffle 51 is positioned in the mouth portion 45 and extends from a peripheral edge 53 of the mouth 42 downwards and radially towards the inside of the filling pipe 6.
  • the baffle 51 defines an inclined lateral wall of the mouth portion 45 tapered downwards.
  • the baffle 51 has an upper surface 54 facing upwards and towards the mouth 42, substantially flat and inclined downwards in relation to the axis A and ends with a free end edge 55, for example, substantially straight and positioned, for example, near the axis A and of a middle diametric plane (passing through the axis A) of the filling pipe 6.
  • the baffle 52 is positioned below the other baffle 51 and extends from an inner lateral surface of the filling pipe 6 downwards and radially towards the inside of the filling pipe 6.
  • the baffle 52 has an upper surface 56 that is substantially flat and inclined downwards in relation to the axis A and ends with a free end edge 57, for example substantially straight, positioned below the edge 55 of the baffle 51 and substantially aligned with it.
  • This edge 57 like the other edge 55 of the baffle 51, is also, thus, positioned, for example, near the axis A and near a middle diametric plane (passing through the axis A) of the filling pipe 6.
  • the pair of baffles 51, 52 defines a narrowing 58 inside the filling pipe 6 that has the function of flooding the filling pipe 6 during the passage of the water through the filling pipe 6, in particular filling the mouth portion 45 and creating, thus, a water chamber that takes up the whole of the cross section of the filling pipe 6 and prevents the inlet of air into the filling pipe 6, so as to avoid or at least reduce noise during the tank-filling step.
  • the filling pipe 6 is, optionally, equipped with a lateral slide 59, which begins at the mouth 42 and extends, then, parallel to the filling pipe 6 to define an auxiliary channel that can serve to convey water coming from the outlet conduit 8 into the tank and that, for some reason (in particular when there too much pressure from the mains water) does not flow regularly into the filling pipe 6.
  • the float 4 opens the nozzle 12 and the mains water pressure in the inlet conduit 7 deforms the diaphragm 10, opening the passage 9; a water flow then flows from the inlet conduit 7 into the outlet conduit 8.
  • the water flow traverses the outlet conduit 8, passing, in particular, through the pressurization element 35, where the water flow is subject to an increase in pressure, and reaches the head 22 and, from there, having flowed through the flow regulator device 30, exits through the outlet 19.
  • the water flow exiting the outlet 19 takes on a substantially laminar motion and a prefixed aperture angle, determined by the device 30.
  • the water exiting from the outlet 19 enters the filling pipe 6 through the mouth 42 and then flows through the filling pipe 6 into the tank.
  • the float 4 closes the nozzle 12, thus stopping the flow of water.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Polarising Elements (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Dicing (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
EP20189458.1A 2019-08-06 2020-08-04 Appareil d'alimentation pour un réservoir de chasse Pending EP3772553A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000014145A IT201900014145A1 (it) 2019-08-06 2019-08-06 Dispositivo di alimentazione per una cassetta di risciacquo

Publications (1)

Publication Number Publication Date
EP3772553A1 true EP3772553A1 (fr) 2021-02-10

Family

ID=69105991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20189458.1A Pending EP3772553A1 (fr) 2019-08-06 2020-08-04 Appareil d'alimentation pour un réservoir de chasse

Country Status (2)

Country Link
EP (1) EP3772553A1 (fr)
IT (1) IT201900014145A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1383886A (en) * 1919-09-25 1921-07-05 Sr Jean F Webb Water-silencer
US3086546A (en) * 1959-03-06 1963-04-23 Brown Ernest Harold Water silencing and saving means for ball cock valve assembly in toilet flush tank
FR2051939A5 (fr) * 1969-07-02 1971-04-09 Voigt Helmut Fa
US4745945A (en) * 1986-09-23 1988-05-24 Watts Regulator Company Thermal expansion relief arrangement for closed plumbing system
DE9108770U1 (de) * 1991-07-17 1992-08-13 Steinmetz, Günter, 8047 Karlsfeld Automatisches Wasserzulaufventil für Flüssigkeit-Sammelbehälter
EP1323875A2 (fr) * 2001-12-28 2003-07-02 Oliveira & Irmao S.A. Dispositif silencieux pour alimenter en eau un réservoir, en particulier pour remplir une chasse d'eau
EP1361314A1 (fr) * 2002-04-23 2003-11-12 Oliveira & Irmao S.A. Dispositif pour limiter les vibrations sonores lors du remplissage d'une chasse d'eau
EP2829666A1 (fr) * 2013-07-24 2015-01-28 Geberit International AG Garniture d'entrée pour une chasse d'eau
US20180291606A1 (en) * 2017-04-11 2018-10-11 So-Mei Huang Automatic leak-proof water inlet device for a water tank

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1383886A (en) * 1919-09-25 1921-07-05 Sr Jean F Webb Water-silencer
US3086546A (en) * 1959-03-06 1963-04-23 Brown Ernest Harold Water silencing and saving means for ball cock valve assembly in toilet flush tank
FR2051939A5 (fr) * 1969-07-02 1971-04-09 Voigt Helmut Fa
US4745945A (en) * 1986-09-23 1988-05-24 Watts Regulator Company Thermal expansion relief arrangement for closed plumbing system
DE9108770U1 (de) * 1991-07-17 1992-08-13 Steinmetz, Günter, 8047 Karlsfeld Automatisches Wasserzulaufventil für Flüssigkeit-Sammelbehälter
EP1323875A2 (fr) * 2001-12-28 2003-07-02 Oliveira & Irmao S.A. Dispositif silencieux pour alimenter en eau un réservoir, en particulier pour remplir une chasse d'eau
EP1361314A1 (fr) * 2002-04-23 2003-11-12 Oliveira & Irmao S.A. Dispositif pour limiter les vibrations sonores lors du remplissage d'une chasse d'eau
EP2829666A1 (fr) * 2013-07-24 2015-01-28 Geberit International AG Garniture d'entrée pour une chasse d'eau
US20180291606A1 (en) * 2017-04-11 2018-10-11 So-Mei Huang Automatic leak-proof water inlet device for a water tank

Also Published As

Publication number Publication date
IT201900014145A1 (it) 2021-02-06

Similar Documents

Publication Publication Date Title
RU2649520C2 (ru) Корпус клапана с верхним отклоняющим устройством для отклонения потока
ES2964059T3 (es) Unidad de inserción sanitaria
EP3712338A1 (fr) Toilettes à chasse d'eau
EP3147416B1 (fr) Dispositif d'alimentation d'un réservoir de chasse d'eau
EP3772553A1 (fr) Appareil d'alimentation pour un réservoir de chasse
US8720480B2 (en) Flush water supply device, flush water tank assembly with flush water supply device, and flush toilet with flush water tank assembly
EP3495572B1 (fr) Dispositif d'alimentation d'un réservoir de chasse d'eau
US20140054234A1 (en) Removal device for micro-bubbles and dirt particles
JP2016075081A (ja) 吐水装置
KR100598111B1 (ko) 레귤레이터 및 이를 사용하여 가스를 공급하는 방법
JP5515354B2 (ja) 吐水機構
US3709246A (en) Water inlet control means for toilet tanks
JP4966511B2 (ja) 水槽
JP6716414B2 (ja) 吐水部品及び吐水装置
JP7368588B2 (ja) 液体用の圧力弁
JP5034168B2 (ja) 洗浄装置
WO2019206045A1 (fr) Dispositif de commande d'écoulement d'eau d'entrée et machine à laver
CN111188390A (zh) 一种提高溢流能力及加快排水阀排速的溢流装置
JP7301583B2 (ja) ガス抜き構造、ガス抜き部材及びガス抜き部材を備える水栓
EP4083340A1 (fr) Toilettes à chasse d'eau
US6810904B2 (en) Lavatory flush tank silent-operating fill device
CN114151881B (zh) 一种湿帘分水器
SU1068900A1 (ru) Регул тор уровн верхнего бьефа
CN211774277U (zh) 一种提高溢流能力及加快排水阀排速的溢流装置
JP7427161B2 (ja) 水洗大便器装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210803

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20221115

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230418

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240419