WO2005014943A1 - Appareil de remplissage et de decharge pour reservoir - Google Patents

Appareil de remplissage et de decharge pour reservoir Download PDF

Info

Publication number
WO2005014943A1
WO2005014943A1 PCT/ZA2004/000089 ZA2004000089W WO2005014943A1 WO 2005014943 A1 WO2005014943 A1 WO 2005014943A1 ZA 2004000089 W ZA2004000089 W ZA 2004000089W WO 2005014943 A1 WO2005014943 A1 WO 2005014943A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
cistern
liquid
actuator
filling
Prior art date
Application number
PCT/ZA2004/000089
Other languages
English (en)
Inventor
Ernest Ray Mitchley
Erik Bernard Warburg
Original Assignee
Ernest Ray Mitchley
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 Ernest Ray Mitchley filed Critical Ernest Ray Mitchley
Publication of WO2005014943A1 publication Critical patent/WO2005014943A1/fr

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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
    • E03D1/36—Associated working of inlet and outlet valves
    • 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
    • E03D1/02—High-level flushing systems
    • E03D1/18—Cisterns empty when not in action, e.g. with pressure tanks, with swivel-mounted cisterns
    • E03D1/186—Cisterns empty when not in action, e.g. with pressure tanks, with swivel-mounted cisterns with flushing valves

Definitions

  • This invention relates to filling and discharge apparatus for a tank or cistern.
  • filling and discharge apparatus for a cistern comprising a liquid
  • ⁇ inlet adapted for connection to a liquid source and a liquid outlet by means of which a liquid is in the cistern may be discharged in use is characterised in that: 0 1 the cistern is adapted to be normally empty; 2 the liquid inlet includes a normally closed liquid inlet valve; the liquid outlet includes a normally open liquid outlet valve; a valve actuator is provided that is switchable between an actuating state, in which the valve actuator is adapted to close the liquid outlet valve and open the liquid inlet valve, and a non-actuating state, in which the valve actuator is adapted to close the liquid inlet valve and open the liquid outlet valve; and an actuator retaining means is provided that is adapted, upon actuation of the valve actuator in use, to retain the valve actuator in the actuating state thereof thereby to allow liquid to enter the cistern by way of the liquid inlet valve and accumulate within the cistern and, when the cistern is filled with a predetermined volume of liquid, to switch the valve actuator to the non-actuating state thereof
  • this invention finds particular application as a filling and discharge apparatus for a i toilet cistern, the invention can be applied in a multitude of applications, including
  • cistern when used in this x specification, must therefore be given its widest possible interpretation to include all such is reservoirs, tanks, cisterns or the like, where the context allows.
  • valve actuator is preferably biased to the non-actuating state thereof and adapted to
  • the filling and discharge apparatus including an automatic release mechanism adapted to act on the
  • the automatic release mechanism may conveniently be ?s constituted by a float activated release mechanism that is adapted to release the actuator
  • the valve actuator may be constituted by a plunger, one end of which extends into the cistern, which end includes the closing member of the liquid outlet valve, the plunger being adapted, when in use it is moved to the actuating thereof, to locate the liquid outlet valve closing member on the liquid outlet valve seat to close the liquid outlet valve, the plunger being spring biased to the non-actuating state thereof and requiring operator intervention to urge the plunger, against the spring bias, to its actuating state.
  • the valve actuator retaining means may be constituted by a catch formed on the plunger to engage a compiementally shaped pawl forming part of the float activated release mechanism, the pawl being adapted to disengage from the catch when, in use, the float is urged upwardly by the increase in liquid level within the cistern.
  • the liquid inlet valve is preferably constituted by a diaphragm valve adapted to be acted
  • valve actuator being adapted to control the operation of the pilot
  • ⁇ 3 valve which is adapted to control the operation of the liquid inlet valve.
  • the invention includes a cistern incorporating filling and discharge apparatus comprising a
  • the cistern is adapted to be normally empty
  • the liquid inlet includes a normally closed liquid inlet valve
  • the liquid outlet includes a normally open liquid outlet valve
  • valve actuator is provided that is switchable between an actuating state, in which
  • valve actuator is adapted to close the liquid outlet valve and open the liquid inlet valve, and a non-actuating state, in which the valve actuator is adapted to close the liquid inlet valve and open the liquid outlet valve; and 0 an actuator retaining means is provided that is adapted, upon actuation of the valve actuator in use, to retain the valve actuator in the actuating state thereof thereby to / allow liquid to enter the cistern by way of the liquid inlet valve and accumulate within the cistern and, when the cistern is filled with a predetermined volume of liquid, to switch the valve actuator to the non-actuating state thereof thereby automatically closing the liquid inlet valve and opening the liquid outlet valve to permit the discharge of the accumulated liquid from the cistern.
  • the invention also includes a method of filling and discharging a cistern comprising the 5 steps of keeping the cistern in a normally empty state, filling the cistern, when required, '/ with a predetermined quantity of liquid and discharging the cistern automatically when, in 8 use, the cistern is filled with the predetermined volume of liquid.
  • the filling and discharging of the cistern is preferably undertaken by means of the filling ⁇ and discharge apparatus described above.
  • Figure 1 is a diagrammatic sectional elevation on a toilet cistern incorporating the
  • Figure 2 is a similar section illustrating the cistern of Figure 1 filled with water up to a predetermined level
  • Figure 3 is a diagrammatic sectional elevation on an alternative embodiment of a
  • toilet cistern according to the invention, illustrating the cistern in its normally empty
  • Figure 4 is a detail on the circled section 4 in Figure 3;
  • Figure 5 is a detail on the circled section 5 in Figure 3;
  • 1 Figure 6 is a diagrammatic sectional elevation on the cistern of Figure 3 filled with 2 water up to a predetermined level;
  • Figure 7 is a detail on the circled section 7 in Figure 6;
  • Figure 8 is a detail on the circled section 8 in Figure 3; 7 3 Figure 9 is a detail section illustrating the disc valve assembly of the cistern of 9 Figure 3, in the condition illustrated in Figure 3; and
  • FIG. 10 is a detail section illustrating the disc valve assembly of the cistern of
  • this invention seeks to address the problem by retaining the cistern 9 in a normally empty state. 0 This is the state illustrated in Figure 1. rz In the event that the toilet cistern needs to be used to flush the toilet to which it is coupled, the user simply actuates the filling apparatus of the invention which then fills up the cistern with water up to a predetermined level. This is the state of the cistern illustrated in Figure 2.
  • the filling and discharge apparatus of the invention is mounted within a toilet cistern 10 3 . which is connected to water mains by means of an inlet pipe 12.
  • the inlet pipe is A connected to a liquid or water inlet valve 14 by means of a section of flexible hose 16 and a 5 filler pipe 18 is extended from the inlet valve 14 to a point low within the cistern 10. This Q . assists in minimising filling noise-
  • the filling and discharge apparatus of the invention is connected, at the outlet 20 of the 9 cistern.10 to a flushing pipe 22 that is coupled to a toilet (not shown).
  • the filing and discharges apparatus comprises a spring loaded valve actuator 2 that 5 actuates both the liquid inlet valve and the liquid outlet valve.
  • the valve actuator 2 is 18 constituted by an actuator shaft or plunger tube 24 that is supplied, at its upper end, with a 7 manual depression knob 26 and, at its lower end, with a disc valve 28 that is more clearly 1 seen in Figure 2.
  • valve actuator 2 and more specifically the plunger 24 is slidably mounted within an 1 actuator housing 30 that extends upwardly into a tubular valve actuator guide 32 within 2 which the plunger 24 may slide up and down- At its lower end, the valve actuator housing 3 30 houses the disc valve and, as can be seen from Figure 1 , a compression spring 34 by 4 means of which the valve actuator 2 (plunger tube 24) is biased to the open position of the 5 disc valve 28 (the position illustrated in Figurel).6 7 The valve actuator 2 actuates both the disc valve 28 and the inlet valve 14 when it is 8 depressed, by way of the knob 26-
  • the plunger 24 includes a longitudinally extending track 36 that stands proud of the surface of the plunger 24-
  • a permanent magnet 38 and a float mechanism 40 are mounted on the track 36.
  • the permanent magnet 38 is intended to actuate the inlet valve 14 which is a magnetically 2 operated pressure assisted diaphragm valve including a magnetic actuator mechanism 3 housed within a valve actuator housing 42. 4 5 , .
  • the valve 14 is mounted in such a way that the valve actuator housing 42 is located closely c> adjacent to the path of travel of the magnet 38.
  • the cistern 10 is normally empty, as is illustrated in Figure 1.
  • the valve actuator 2 plug tube 24
  • the valve actuator 2 is provided with an interacting actuator retaining means and an
  • the latching mechanism is constituted by a latching pawl or hook 46
  • the inlet valve 14 is constituted by a magnetically latched valve in which a magnet is used
  • the magnet is constituted by the ? magnet 38 located on the track 36.
  • the valve actuator 2 plunger tube 24
  • the magnet 38 is transported into the proximity of the valve actuator housing 42, thereby drawing the valve armature into the open position of the valve 4 14.
  • the plunger 24 is retained in the closed position of the disc valve 28 by the 5 cooperating latching hooks 46, 48 (the Figure 2 position) the magnet 38 will be retained in ⁇ i position closely adjacent to the valve actuator housing 42, thereby keeping the inlet valve 7 14 open and allowing the cistern 10 to fill with water.
  • the latching hook 46 is mounted on a lever arm 50 forming part of the float
  • the filling and discharge apparatus of the embodiments of the invention illustrated in 2 Figures 3 to 10 is mounted within a toilet cistern 110 similar to the cistern 10 of Figures 1 3 and 2.
  • the cistern 110 is connected to water mains by means of an inlet pipe (not shown) -1 that may be connected directly to an inlet valve 114 mounted against the wall of the cistern 5 110.
  • a filler pipe 118 is extended from the inlet valve 114 to a point low within the cistern ⁇ 110.
  • the filling and discharge apparatus is connected, at the outlet 120 of the cistern 110 to a 8 flushing pipe 122 that is coupled to a toilet (not shown).
  • the filing and discharges apparatus includes a spring loaded valve actuator 102 that
  • the valve actuator 102 ">3 includes an actuator linkage lever 104 that acts on a plunger shaft or tube 124 and that is •4 formed, at its one end, with a pivoted push-down lever 126 and, at its other end, with a ?5 pivot connection to the plunger 24, the latter terminating in a disc valve 128.
  • the plunger 124 is slidably mounted within an actuator housing 130 that extends upwardly is into a tubular valve actuator guide 132 within which the plunger 124 may slide up and
  • valve actuator housing 130 houses the disc valve.
  • the plunger 124 actuates both the disc valve 128 and the inlet valve 114 when it is
  • the plunger 124 includes an actuator finger 136 that is attached to the
  • the finger 136 is adapted to bear against a spring biased rocker 158 6 between positions in which it closes and opens a rocker operated pilot valve 160. ?i
  • the pilot valve 160 actuates the inlet valve 114 which is a pressure assisted diaphragm
  • the pilot valve 160 is mounted in such a way that the rocker 158 is . - located in the path of travel of the actuator finger 136.
  • the cistern 110 is normally empty, as is illustrated in Figure 3.
  • the plunger 124 is operated by depressing the lever 126 into the recess 144 formed in the lid of the cistern 110 for this purpose.
  • the plunger 124 is provided with an interacting actuator retaining means and an automatic
  • release mechanism constituted by a latching mechanism that retains the plunger 124 in the
  • the latching mechanism is illustrated in more detail in Figures 9 and 10.oi
  • the disc valve 128 is2 securely seated against an outlet valve seat formed within the valve housing 130 against3 the bias of a return spring 135.4s
  • the latching mechanism is constituted by a latching pawl or hook 146 forming part of the6 float mechanism 140 and a hook formation forming part of a spring guide 133 that is7 secured to the plunger 124.
  • the inlet valve 114 is constituted by a pilot operated diaphragm valve , the diaphragm 1623 of which is retained against its valve seat 164 by the pressure differential between water4 pressure applied to the fully exposed upper surface of the diaphragm 162 and the partially5 exposed undersurface of the diaphragm 162.
  • the water pressure in the inlet chamber 1660 of the diaphragm valve and in the modulating chamber 168 is equalised as a result of7 controlled leakage through calibrated connecting channels (not shown) formed in the ⁇ diaphragm 162.
  • the modulating chamber 168 is connected to the pilot valve 160 by•> means of a pressure tube 170-0 As long as the pilot valve rocker 158 closes the pilot valve by sealing against the pilot valve outlet 172, the water pressure in the modulating chamber 168 is maintained and the diaphragm valve remains closed- However, when the actuator finger 136 lifts off the rocker 158, the spring bias thereof lifts the rocker 158 off the pilot valve outlet 172, causing the water pressure in the modulating chamber 168 to drop so that the diaphragm valve opens as the now greater pressure under the diaphragm 162 lifts it off the valve seat-
  • the latching hook 146 is mounted on a lever arm 150 forming part of the float
  • the float 152 and latching hook serve as an automatic release mechanism.
  • ⁇ - cistern 110 is coupled leaving only a small quantity of water 156.1 within the cistern 110, 3 returning the cistern 110 to its normally empty state, which is the state illustrated in Figure 4 3.

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)

Abstract

L'appareil de l'invention permet de résoudre le problème des fuites des réservoirs de toilettes par le maintien du réservoir (10) à l'état normalement vide, comme représenté sur le dessin. Lorsqu'il est nécessaire d'utiliser le réservoir (10) de toilettes pour rincer les toilettes auxquelles il est associé, l'utilisateur actionne simplement l'appareil de remplissage qui remplit ensuite le réservoir jusqu'à un niveau prédéterminé. A ce niveau, le mécanisme de remplissage est arrêté automatiquement et le réservoir décharge automatiquement et revient à son état représenté dans le dessin, état dans lequel la soupape de décharge est ouverte et maintenue en position ouverte et la soupape de remplissage est fermée et maintenue en position fermée.
PCT/ZA2004/000089 2003-08-08 2004-08-02 Appareil de remplissage et de decharge pour reservoir WO2005014943A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200306148 2003-08-08
ZA03/6148 2003-08-08

Publications (1)

Publication Number Publication Date
WO2005014943A1 true WO2005014943A1 (fr) 2005-02-17

Family

ID=34136981

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2004/000089 WO2005014943A1 (fr) 2003-08-08 2004-08-02 Appareil de remplissage et de decharge pour reservoir

Country Status (1)

Country Link
WO (1) WO2005014943A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009044206A3 (fr) * 2007-10-05 2009-06-04 Picton Michael Soupape de chasse d'eau
WO2012167287A1 (fr) * 2011-05-30 2012-12-06 Mitchley Ernest Ray Réservoir antifuite

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU27988A1 (fr) *
CH227316A (de) * 1942-05-08 1943-06-15 Zumbrunnen Erhard Vorrichtung zur Regelung des Wasserzuflusses in einem Spülkasten.
US3095577A (en) * 1962-03-05 1963-07-02 Charles J Clark Toilet tank flushing mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU27988A1 (fr) *
CH227316A (de) * 1942-05-08 1943-06-15 Zumbrunnen Erhard Vorrichtung zur Regelung des Wasserzuflusses in einem Spülkasten.
US3095577A (en) * 1962-03-05 1963-07-02 Charles J Clark Toilet tank flushing mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009044206A3 (fr) * 2007-10-05 2009-06-04 Picton Michael Soupape de chasse d'eau
US9151028B2 (en) 2007-10-05 2015-10-06 Gtp Developments Limited Flushing valve
WO2012167287A1 (fr) * 2011-05-30 2012-12-06 Mitchley Ernest Ray Réservoir antifuite

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