EP3147416B1 - Füllventil für einen spülkasten - Google Patents

Füllventil für einen spülkasten Download PDF

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Publication number
EP3147416B1
EP3147416B1 EP16190183.0A EP16190183A EP3147416B1 EP 3147416 B1 EP3147416 B1 EP 3147416B1 EP 16190183 A EP16190183 A EP 16190183A EP 3147416 B1 EP3147416 B1 EP 3147416B1
Authority
EP
European Patent Office
Prior art keywords
outlet conduit
feeding device
air vent
chamber
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.)
Not-in-force
Application number
EP16190183.0A
Other languages
English (en)
French (fr)
Other versions
EP3147416A1 (de
Inventor
Bruno DOS SANTOS PEREIRA
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 EP3147416A1 publication Critical patent/EP3147416A1/de
Application granted granted Critical
Publication of EP3147416B1 publication Critical patent/EP3147416B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the present invention relates to a feeding device for a flush tank of a sanitary appliance.
  • a flush tank of a sanitary appliance is generally also provided with a feeding device connected to the water supply to fill the tank after flushing of the water in the sanitary appliance occurs.
  • a commonly used feeding device comprises, in general terms, an inlet pipe having a fitting for connection to the water supply, a valve assembly housed in a casing and controlled by a float, and an outlet pipe that admits the water that has flowed through the valve assembly into the tank.
  • the valve assembly may be, in particular, of the so-called counter-pressure closure or diaphragm type, in which the float operates a shutter acting on a vent nozzle of a counter-pressure chamber delimited by a diaphragm or membrane; the diaphragm separates two conduits from each other, which are connected, respectively, to the inlet pipe and the outlet pipe.
  • the vent nozzle opens and the diaphragm deforms elastically under the pressure of the water and connects together the conduits, thus allowing the passage of water and the filling of the tank.
  • the vent nozzle closes and the pressure in the counter-pressure chamber balances that of the incoming water and the diaphragm once again disconnects the conduits, stopping water entering into the tank.
  • valve assembly In order to avoid the phenomena of backflow into the water supply in the event of malfunctions, the valve assembly must (as also set out in specific standards and regulations) be provided with an air vent, communicating with the outside of the feeding device to allow the exit of air from the feeding device and therefore to prevent potential suction of water from the tank.
  • the presence of the air vent causes, during the normal operation of the feeding device, the formation of a water/air mixture in the feeding device.
  • the admission of air into the water flow circulating in the feeding device can cause turbulent flow phenomena with a consequent increase in noise during filling of the tank.
  • US2003/079780A1 , US1525334A and EP0118647A1 disclose feeding devices of the type with an air vent; the air vent communicates with a flooding chamber, which is filled in use with water.
  • the air vent is selectively closed/open by a shutter body of a dedicated valve, which is operated by the flow of water filling the chamber.
  • the air vent is closed by the water which fills the chamber, and a silencer element is housed inside the chamber to reduce noise during re-filling.
  • the present invention relates therefore to a feeding device for a flush tank as defined in essential terms in the appended claim 1 and, in its additional characteristics, in the dependent claims.
  • the feeding device according to the invention meets the criteria set out in anti-backflow standards, being effectively able to prevent backflow of water into the water supply, but at the same time avoids problems related to the admission of air into the water flow circulating in the feeding device and in particular reduces noise while the tank is filling.
  • a feeding device in particular a bottom-fed device, for a flush tank (known and, for simplicity, not shown) of a sanitary appliance, is indicated as a whole with 1 in figure 1 .
  • the feeding device 1 comprises an internally hollow body 2, a valve assembly 3 housed in the body 2 and controlled by a float 4, an inlet pipe 5 arranged upstream of the valve assembly 3 and connectable to a water supply to carry a water flow to the valve assembly 3, and an outlet pipe 6 arranged downstream of the valve assembly 3 and through which the water flowing through the valve assembly 3 is admitted into the tank.
  • the valve assembly 3 is a counter-pressure valve assembly that is substantially known per se.
  • the valve assembly 3 comprises an inlet conduit 7 connected to the inlet pipe 5; an outlet conduit 8 connected to the outlet pipe 6; an internal connecting passage 9 connecting the inlet conduit 7 and the outlet conduit 8; an elastically deformable or movable disc-shaped diaphragm 10 which selectively closes off the passage 9; and a counter-pressure chamber 11 delimited by the diaphragm 10 and provided with a vent nozzle 12 which connects the counter-pressure chamber 11 with the outside of the body 2 and which is closed by a movable shutter 13 operated by the float 4.
  • the diaphragm 10 keeps the passage 9 closed, because the water pressure in the inlet conduit 7 is counterbalanced by the pressure inside the counter-pressure chamber 11 and the water present in the inlet conduit 7 is unable to deform or move the diaphragm 10.
  • the nozzle 12 opens, as a result of a downward movement of the float 4 resulting from a lowering of the water level in the tank (i.e. when the water is flushed from the tank), the water pressure in the inlet conduit 7 exceeds the pressure in the counter-pressure chamber 11 and the diaphragm 10 elastically deforms or moves, opening the passage 9 and allowing the water to pass from the inlet conduit 7 to the outlet conduit 8 and from here, through the outlet pipe 6, to the tank.
  • the float 4 is fitted so that it is axially slidable on a guide element 15 located on the outside of the body 2 and is mechanically connected, for example by means of a linkage 16, to the shutter 13 cooperating with the nozzle 12 so as to control operation of the valve assembly 3.
  • the inlet pipe 5 and the outlet pipe 6 are substantially straight and parallel and substantially vertical in use, both extending downwards from the body 2 parallel to a longitudinal axis A, vertical in use, of the feeding device 1.
  • the inlet pipe 5 can extend laterally from the body 2, rather than downwards.
  • the inlet pipe 5 is provided with an end connector 17 which serves to connect it to an external pipe, and fastening means 18 for mechanically securing the feeding device 1 to the tank.
  • the outlet pipe 6 is placed beside the inlet pipe 5 and carries the guide element 15 for the float 4.
  • the feeding device 1 comprises an internal flooding chamber 22, arranged in the body 2 at a top end 23 of the feeding device 1, i.e. of the body 2; an air vent 24 formed in the body 2 and communicating with the outside of the body 2 and the outlet conduit 8; and a conveyor element 25 housed at least partly in the chamber 22 and extending inside the outlet conduit 8, where it intercepts a water flow circulating in the outlet conduit 8 and forms a narrowing 26 suitable to cause the chamber 22 to be filled with water and thus prevent the admission of air into the outlet conduit 8 through the air vent 24, in effect closing the air vent 24 with a water zone.
  • the chamber 22 communicates with the outside of the body 2 through the air vent 24.
  • the air vent 24 is formed inside an external opening 27 which passes through a top wall 28 of the body 2 and is delimited by a peripheral edge 29.
  • the chamber 22 communicates with the outlet conduit 8 through a lateral branch passage 30, formed in a lateral wall of the outlet conduit 8.
  • the chamber 22 defines a critical zone in which, in the known feeding devices similar to that described here, the formation of air/water mixtures may occur.
  • the feeding device 1 comprises the conveyor element 25, shaped in such a way as to intercept the water flow circulating in the feeding device 1 and in particular in the outlet conduit 8 and to restrict the passage section (cross-section) of the outlet conduit 8 so as to convey water into the chamber 22 and completely flood (fill with water), the chamber 22, thus creating a water zone that closes the air vent 24.
  • the conveyor element 25 consists of a piece 31, preferably monolithic and made of a substantially rigid polymeric material, fitted by means of a coupling 32, in particular a snap-on coupling, on the body 2 at the end 23.
  • the conveyor element 25 comprises an outer part 33, positioned outside the body 2 and attached to the body 2 by the coupling 32; and an inner part 34, which protrudes from the part 33 and is housed inside the body 2 and more precisely in the chamber 22.
  • the outer part 33 is substantially elbow-shaped and extends along an outer surface 35 of the body 2; the part 33 has an inner lateral surface 36, facing the outer surface 35 of the body 2 and having a concave cross-section.
  • the outer surface 35 of the body 2 and the lateral surface 36 of the conveyor element 25 delimit an outer channel 37.
  • the part 33 has a first portion 38 positioned above the opening 27 and the air vent 24, and substantially horizontal; and a second portion 39 substantially vertical and orthogonal to the first portion 38, connected to the first portion 38 by a curved connecting portion 40.
  • the inner part 34 extends through the opening 27 into the chamber 22 and comprises: an auxiliary pipe 42, which extends downwards from the part 33 and precisely from the portion 38 and is joined to the portion 38 by means of an upper stem end 43; and a baffle 45 which extends from a lower free end 46, opposite to the end 43 of the auxiliary pipe 42.
  • the auxiliary pipe 42 is preferably provided with a radially outer collar 47, placed inside the opening 27 in contact with the edge 29.
  • the auxiliary tube 42 is provided at the end 43 with a first opening 48 communicating with the outside of the body 2 and facing the channel 37; and at the end 46 with a second lateral opening 49 adjacent to the branch passage 30 and communicating with the branch passage 30.
  • the opening 48 defines the air vent 24; in any case, the opening 48 communicates with the air vent 24; the air vent 24 communicates, via the auxiliary tube 42, with the outlet conduit 8.
  • the baffle 45 extends from the end 46 of the auxiliary tube 42 under the opening 49 and extends through the branch passage 30 and transversely inside the outlet conduit 8; the baffle 45 is preferably inclined with respect to the auxiliary tube 42 and the outlet conduit 8 and extends obliquely downwards from the end 46 of the auxiliary tube 42 in the outlet conduit 8.
  • the baffle 45 is shaped and dimensioned so as to form the narrowing 26 in the outlet conduit, i.e. to restrict the passage section (cross-section) of the outlet conduit 8 without fully occluding the outlet conduit 8, leaving a free passage space 50 in the outlet conduit 8.
  • the float 4 opens the nozzle 12 and the supply water pressure in the inlet conduit 7 deforms the diaphragm 10, opening the passage 9; the water thus flows from the inlet conduit 7 into the outlet conduit 8.
  • the water flow circulating in the outlet conduit 8 is intercepted by the baffle 45 which narrows the passage section of the outlet conduit 8 forming the narrowing 26.
  • the water that accumulates on the baffle 45 enters through the branch passage 30 and the opening 49 in the auxiliary pipe 42, flooding (completely filling) the chamber 22 and closing the air vent 24 with a water zone.
  • the water flows out of the opening 48, i.e. via the air vent 24, and flows into the outer channel 37, always ending up in the tank.
  • the float 4 closes the nozzle 12, stopping the inflow 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)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Float Valves (AREA)

Claims (8)

  1. Zuführvorrichtung (1) für einen Spülbehälter, mit einen inneren Hohlkörper (2); einer im Inneren des Körpers (2) untergebrachten und zwischen einer Einlassleitung (7) und einer Auslassleitung (8) zum wahlweisen Öffnen / Schließen eines Durchgangs (9) zwischen der Einlassleitung (7) und der Auslassleitung (8) angeordneten Ventilanordnung (3); einem in dem Körper (2) ausgebildeten und mit der Außenseite des Körpers (2) und mit der Auslassleitung (8) in Verbindung stehenden Luftschacht (24); einer in dem Körper (2) positionierten und mit dem Luftschacht (24) und mit der Auslassleitung (8) in Verbindung stehenden Flutungskammer (22); und einem Förderelement (25), das in das Innere der Auslassleitung (8) hineinragt und eine Verengung (26) in der Auslassleitung (8) ausbildet, um einen in der Auslassleitung (8) zirkulierenden Wasserstrom abzufangen und das Füllen der Kammer (22) mit Wasser zu bewirken, und somit den Eintritt von Luft in die Auslassleitung (8) zu verhindern; wobei das Förderelement (25) so geformt ist, dass es das Füllen der Kammer (22) mit Wasser bis zum Luftschacht (24) bewirkt, wobei der Luftschacht (24) mit einem Wasserbereich verschlossen wird; wobei die Zuführvorrichtung (1) dadurch gekennzeichnet ist, dass die Kammer (22) durch einen seitlichen Abzweigungsdurchgang (30) mit der Auslassleitung (8) in Verbindung steht, der in einer Seitenwand der Auslassleitung (8) ausgebildet ist; und das Förderelement (25) eine Ablenkfläche (45) aufweist, die sich querverlaufend im Inneren der Auslassleitung (8) durch den in der Seitenwand der Auslassleitung (8) ausgebildeten seitlichen Abzweigungsdurchgang (30) erstreckt, und geformt ist, um die Verengung (26) in der Auslassleitung (8) auszubilden, d.h. um den Durchgangsbereich der Auslassleitung (8) zu verengen; wobei die Ablenkfläche (45) bezüglich der Auslassleitung (8) geneigt ist und sich schräg nach unten in der Auslassleitung (8) erstreckt.
  2. Zuführvorrichtung nach Anspruch 1, wobei die Kammer (22) in dem Körper (2) an einem oberen Ende (23) der Zuführvorrichtung (1) positioniert ist und der Luftschacht (24) in dem Körper (2) durch eine obere Wand (28) des Körpers (2) ausgebildet ist.
  3. Zuführvorrichtung nach Anspruch 1 oder 2, wobei die Ablenkfläche (45) einen Freidurchgangsraum (50) in der Auslassleitung (8) begrenzt.
  4. Zuführvorrichtung nach einem der vorhergehenden Ansprüche, wobei das Förderelement (25) ein Hilfsrohr (42) aufweist, das im Inneren des Körpers (2) in die Kammer (22) hineinragt und den Luftschacht (24) mit der Auslassleitung (8) verbindet.
  5. Zuführvorrichtung nach einem der vorhergehenden Ansprüche, wobei das Förderelement (25) einen äußeren Teil (33) aufweist, der außerhalb des Körpers (2) positioniert ist und eine Innenseitenfläche (36) aufweist, die einer Außenfläche (35) des Körpers (2) zugewandt ist und zusammen mit der Außenfläche (35) des Körpers (2) einen Außenkanal (37) festlegt, welcher mit dem Luftschacht (24) in Verbindung steht.
  6. Zuführvorrichtung nach einem der vorhergehenden Ansprüche, wobei das Förderelement (25) aus einem vorzugsweise monolithischen Stück (31) besteht, welches durch eine Schnappverbindung (32) an dem Körper (2) angebracht ist.
  7. Zuführvorrichtung nach einem der vorhergehenden Ansprüche, wobei die Ventilanordnung (3) eine Gegendruckventilanordnung ist.
  8. Zuführvorrichtung nach einem der vorhergehenden Ansprüche, wobei die Ventilanordnung (3) durch einen Schwimmer (4) betätigt wird.
EP16190183.0A 2015-09-22 2016-09-22 Füllventil für einen spülkasten Not-in-force EP3147416B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A003781A ITUB20153781A1 (it) 2015-09-22 2015-09-22 Dispositivo di alimentazione per una cassetta di risciacquo

Publications (2)

Publication Number Publication Date
EP3147416A1 EP3147416A1 (de) 2017-03-29
EP3147416B1 true EP3147416B1 (de) 2018-09-19

Family

ID=54884281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16190183.0A Not-in-force EP3147416B1 (de) 2015-09-22 2016-09-22 Füllventil für einen spülkasten

Country Status (2)

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EP (1) EP3147416B1 (de)
IT (1) ITUB20153781A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2818616T3 (es) 2017-12-06 2021-04-13 Oli Sist Sanitarios S A Dispositivo de alimentación para un tanque de descarga
CN110409582B (zh) * 2019-08-07 2024-06-11 厦门铱科卫浴科技有限公司 一种压力式冲水系统的出水盒及应用该出水盒的坐便器
CN110439073B (zh) * 2019-08-07 2024-06-11 厦门铱科卫浴科技有限公司 一种压力式冲水系统及坐便器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525334A (en) * 1923-01-04 1925-02-03 Stengel Charles Flush-tank cock
GB810292A (en) * 1955-05-09 1959-03-11 Walter Nicoll Craig Improvements in or relating to ballcocks for domestic flushing cisterns, feed tanks and the like
FR2542346B1 (fr) * 1983-03-09 1986-01-17 Spmp Sa Robinet pour reservoir de chasse d'eau
GB2161900A (en) * 1984-07-13 1986-01-22 Wigley Albert F Ball-float valve
ES2166734B1 (es) * 2000-10-06 2004-10-16 Fominaya, S.A. Grifo para llenado de cisternas.

Non-Patent Citations (1)

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

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Publication number Publication date
ITUB20153781A1 (it) 2017-03-22
EP3147416A1 (de) 2017-03-29

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