EP1270830A2 - Zufuhrventil für einen Spülkasten - Google Patents
Zufuhrventil für einen Spülkasten Download PDFInfo
- Publication number
- EP1270830A2 EP1270830A2 EP02014337A EP02014337A EP1270830A2 EP 1270830 A2 EP1270830 A2 EP 1270830A2 EP 02014337 A EP02014337 A EP 02014337A EP 02014337 A EP02014337 A EP 02014337A EP 1270830 A2 EP1270830 A2 EP 1270830A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- float
- feed valve
- flush tank
- valve
- guide member
- 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.)
- Withdrawn
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
Definitions
- the present invention relates to a lavatory flush tank feed valve.
- feed valves are fitted with feed valves connected to the water mains.
- feed valves substantially comprise a metal fitting for connection to the water mains; a valve assembly housed in a casing; and a movable float controlling a shutter on the valve assembly.
- the valve assembly may be of the type closed directly by a piston (in which the float-controlled shutter acts directly on the mains connection nozzle), or of the type closed by counterpressure (in which the shutter acts on an auxiliary nozzle which closes a counterpressure chamber).
- the feed valve must be adjusted during installation according to the water mains operating pressure by adjusting the level of the float, i.e. the distance between the float and the valve body.
- the level of the float may have to be adjusted considerably, thus affecting the overall size of the feed valve; whereas a feed valve capable of at least partly compensating for differences in operating pressure with no major adjustment required in the level of the float would be more desirable.
- piston feed valves are suitable for use with relatively low operating pressures (maximum 15-16 bars), and even known counterpressure valves cannot be relied on over 20-bar pressure, so that a demand exists for a feed valve enabling the use of ordinary valve assemblies at higher mains pressures, even of over 20 bars.
- a feed valve for a lavatory flush tank comprising a body housing a valve assembly; and first float means movable with respect to said body and connected to a shutter of said valve assembly to control opening-closing of the valve assembly; the feed valve being characterized by also comprising reversible connecting means for selectively connecting-disconnecting said first float means and said body.
- said reversible connecting means comprise second float means for moving corresponding retaining means to selectively connect-disconnect said first float means and said body alongside a variation in the level of the water in the flush tank.
- the feed valve according to the invention thus adapts automatically to different operating pressures of the water mains to which it is connected, with no major adjustment required in the level of the float, and is therefore highly compact by requiring, at most, a minimum amount of adjustment.
- the feed valve according to the invention operates reliably even at relatively high pressures (over 20 bars), despite employing substantially known - in particular, counterpressure-type - valve assemblies, and at the same time is cheap and easy to produce and install.
- Feed valve 1 indicates as a whole a feed valve for a lavatory flush tank (not shown).
- Feed valve 1 comprises a body 2 having an inner cavity 3 housing a known, e.g. counterpressure-type, valve assembly 4 not described in detail for the sake of simplicity.
- a tubular fitting 5 is connected to body 2 by a ring nut 7, has an externally threaded end 6 for connection to an external feed pipe (not shown), and may be fitted inside with a noise-damping member 8, e.g. of the type described in the Applicant's pending Italian Patent Application n. MI200A002272.
- Body 2 is also connected to a pipe 9 perpendicular to fitting 5, and along which water flows in known manner from fitting 5 and valve assembly 4 into the flush tank.
- the same pipe 9 also acts as a guide member 10 for a main float 11 fitted coaxially to and sliding axially on the outside of guide member 10, and connected mechanically by an adjustable rod 12 to a lever 13 controlling valve assembly 4.
- lever 13 has a shutter 14 cooperating with a valve seat 15 of a nozzle 16 of valve assembly 4 to control opening-closing of valve assembly 4.
- main float 11 comprises a substantially prismatic buoyancy tank 18 having a central through seat 19 defined by a cylindrical inner lateral surface 20.
- Guide member 10 is inserted to slide axially inside seat 19, and comprises, on its outer lateral surface 21, two diametrically opposite rails 22 cooperating in known manner with respective longitudinal ribs (not shown) projecting from inner lateral surface 20.
- Outer lateral surface 21 also comprises, between rails 22, a succession of longitudinally spaced teeth 23 projecting radially from outer lateral surface 21 to define a number of respective seats 24 having respective mating surfaces 25 facing downwards, i.e. facing a free end 26 of guide member 10.
- Feed valve 1 also comprises reversible connecting means 30 for selectively connecting-disconnecting main float 11 and guide member 10 (i.e. main float 11 and body 2). More specifically, reversible connecting means 30 comprise an auxiliary float 31 for moving a retaining member 32 for selectively connecting-disconnecting main float 11 and guide member 10 alongside a variation in the level of the water in the flush tank.
- auxiliary float 31 and retaining member 32 are carried by a rocking member 33 hinged to a top face 34, facing body 2, of buoyancy tank 18 of main float 11.
- Rocking member 33 comprises a fork 35 having two parallel arms 36 hinged at respective ends 37 and by respective pins 38 to buoyancy tank 18.
- arms 36 At ends 37, arms 36 have respective projections 39 projecting on the opposite side to face 34 and connected rigidly by a crossbar 40.
- Crossbar 40 defines retaining member 32, which engages a selected seat 24 by resting substantially axially against mating surface 25 of seat 24.
- Auxiliary float 31 is carried by and projects from respective ends 41, opposite ends 37, of arms 36, and comprises a buoyancy tank 42 (preferably, though not necessarily, much smaller than buoyancy tank 18) parallel to crossbar 40 and rigidly connecting ends 41 transversely. Arms 36, crossbar 40 and buoyancy tank 42 define a gap 43 through which guide member 10 extends; and retaining member 32 and auxiliary float 31 are located diametrically opposite with respect to guide member 10.
- Auxiliary float 31 is so sized that rocking member 33 selectively assumes a first operating position 33a (shown by the continuous line in Figure 2) in which retaining member 32 engages seat 24 when the water in the flush tank is below a predetermined level H1, and a second operating position 33b (shown by the dash line in Figure 2) in which retaining member 32 does not engage seat 24 when the water in the flush tank reaches or exceeds level H1.
- Auxiliary float 31 therefore moves retaining member 32 (by rotating rocking member 33) to selectively connect-disconnect main float 11 and guide member 10 (i.e. main float 11 and body 2) alongside a variation in the level of the water in the flush tank.
- Feed valve 1 operates as follows:
- main float 11 no longer buoyed up by the water, weighs on rod 12, which, by means of lever 13, keeps shutter 14 detached from valve seat 15 to open nozzle 16, so that water from the mains flows into the flush tank through valve assembly 4 (operation of which is known and therefore not described for the sake of simplicity).
- auxiliary float 31 no longer buoyed up by the water, weighs on rocking member 33 to keep it in the first operating position 33a, in which retaining member 32 engages seat 24 and rests axially upwards against mating surface 25, so that main float 11 is connected axially to guide member 10.
- main float 11 level H2 in Figure 2
- main float 11 level H2 in Figure 2
- valve assembly 4 remains open and water continues flowing into the flush tank.
- auxiliary float 31 i.e. the predetermined level H1 causing rotation of rocking member 33
- the buoyancy of the water on auxiliary float 31 rotates rocking member 33 into the second operating position 33b, in which retaining member 32 does not engage seat 24, so that main float 11 is disconnected from and slides along guide member 10 to close valve assembly 4 and cut off the flow of water into the flush tank.
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)
- Sanitary Device For Flush Toilet (AREA)
- Float Valves (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001MI001396A ITMI20011396A1 (it) | 2001-06-29 | 2001-06-29 | Valvola di alimentazione per una cassetta di risciacquamento di apparecchi sanitari |
ITMI20011396 | 2001-06-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1270830A2 true EP1270830A2 (de) | 2003-01-02 |
EP1270830A3 EP1270830A3 (de) | 2003-06-04 |
Family
ID=11447979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02014337A Withdrawn EP1270830A3 (de) | 2001-06-29 | 2002-06-27 | Zufuhrventil für einen Spülkasten |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1270830A3 (de) |
AU (1) | AU784966B2 (de) |
IT (1) | ITMI20011396A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1353014A2 (de) * | 2002-04-12 | 2003-10-15 | Oliveira & Irmao S.A. | Schnellschliessendes Einlassventil für einen Toilettenspülkasten |
EP1683995A1 (de) | 2005-01-21 | 2006-07-26 | Oliveira & Irmao S.A. | Längeneinstellung eines schwimmergesteuerten Spülventils |
EP1683996A1 (de) | 2005-01-21 | 2006-07-26 | Oliveira & Irmao S.A. | Filter für ein schwimmergesteuertes Füllventil |
EP3511475A1 (de) * | 2018-01-10 | 2019-07-17 | Hidrotecnoagua, S.L. | Wassernachfüllvorrichtung für toilettenspülkästen |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4082110A (en) * | 1976-10-06 | 1978-04-04 | Woodbury Jr John L | Water level control for toilet having vertical float |
WO1999054562A1 (en) * | 1998-04-20 | 1999-10-28 | Sensei Trading Proprietary Limited | Inlet valve |
-
2001
- 2001-06-29 IT IT2001MI001396A patent/ITMI20011396A1/it unknown
-
2002
- 2002-06-27 EP EP02014337A patent/EP1270830A3/de not_active Withdrawn
- 2002-06-28 AU AU50696/02A patent/AU784966B2/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4082110A (en) * | 1976-10-06 | 1978-04-04 | Woodbury Jr John L | Water level control for toilet having vertical float |
WO1999054562A1 (en) * | 1998-04-20 | 1999-10-28 | Sensei Trading Proprietary Limited | Inlet valve |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1353014A2 (de) * | 2002-04-12 | 2003-10-15 | Oliveira & Irmao S.A. | Schnellschliessendes Einlassventil für einen Toilettenspülkasten |
EP1353014A3 (de) * | 2002-04-12 | 2004-06-09 | Oliveira & Irmao S.A. | Schnellschliessendes Einlassventil für einen Toilettenspülkasten |
EP1683995A1 (de) | 2005-01-21 | 2006-07-26 | Oliveira & Irmao S.A. | Längeneinstellung eines schwimmergesteuerten Spülventils |
EP1683996A1 (de) | 2005-01-21 | 2006-07-26 | Oliveira & Irmao S.A. | Filter für ein schwimmergesteuertes Füllventil |
EP3511475A1 (de) * | 2018-01-10 | 2019-07-17 | Hidrotecnoagua, S.L. | Wassernachfüllvorrichtung für toilettenspülkästen |
Also Published As
Publication number | Publication date |
---|---|
EP1270830A3 (de) | 2003-06-04 |
ITMI20011396A1 (it) | 2002-12-29 |
ITMI20011396A0 (it) | 2001-06-29 |
AU784966B2 (en) | 2006-08-10 |
AU5069602A (en) | 2003-01-02 |
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18D | Application deemed to be withdrawn |
Effective date: 20100105 |