GB2077790A - Dual flush water closet cisterns - Google Patents
Dual flush water closet cisterns Download PDFInfo
- Publication number
- GB2077790A GB2077790A GB8014243A GB8014243A GB2077790A GB 2077790 A GB2077790 A GB 2077790A GB 8014243 A GB8014243 A GB 8014243A GB 8014243 A GB8014243 A GB 8014243A GB 2077790 A GB2077790 A GB 2077790A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- float assembly
- stop
- socket
- lug
- 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- Withdrawn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
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
- E03D1/02—High-level flushing systems
- E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
- E03D1/142—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves
- E03D1/144—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves having a single flush outlet and an additional float for delaying the valve closure
Abstract
In a dual-flush valve-discharge cistern the hollow stem 8 of the discharge valve 10 carries a lower float 9, fixed thereto; an upper float 14-15, slidable thereon; and a stop 11. The stem 8 slides on a fixed air inlet tube 5. The slidable float 14-15 is held raised by gravity latch 7. Latch 7 and stem 8 have respective pulling lugs 7C, 12. For a full flush lug 12 alone is raised to open valve 10 (leaving float 14-15 latched inoperative) and released, the valve being held open by float 9 until the water level falls to the lower float level. For a partial flush both lug 12 and lug 7C are raised so that as the water level falls float 14 slides down stem 8 until it reaches stop 11, whereafter its weight overcomes the buoyancy of float 9, i.e. the valve 10 closes as the water level falls to the level of stop 11. <IMAGE>
Description
SPECIFICATION
Step water drainage control system for the flush toilet use
This flush toilet is divided into two kinds of water drainages, which flushes the urine with partial amount of water and flush the excrement with full amount to save water.
In order to divide into two different water drainages, this invention is designed to have two floats and float controllers. The upper float is for weight control use, and the lower float will go up or down according to the water level, to open or close the drainage outlet. Since the specific gravity of these two floats is smaller than water, the following conditions will occur upon operation:
a). While full amount of water drainage, the upper float assembly is hooked not following the water level, to descend and just the lower float assembly goes up or down. Due to smaller specific gravity, water in the water tank will be fully drained.
b). While partial amount of water drainage, the upper float assembly is released following the water level to descend. When water is drained to a certain point, the upper float assembly will give its self weight to the lower float assembly making the weight of these two floats heavier than the buoyant force, thus the lower float will go down to close the drainage outlet and stop draining.
With reference to the above mentioned, when the lower float, assembly except its self weight, covers the drainage outlet, the water will form a pressure to the drainage outlet. Since the total of pressure and its self weight, is heavier than the buoyant force, so it will not follow the water level to rise. The lower float will go up only on the occasion to when pull it upward by deleting the pressure on the drainage outlet formed by water.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is the sectional view of this invention, showing the condition of full water level.
Fig. 2 is a view of the air pipe, drainage pipe and its branch pipe.
Fig. 3. is the condition of pulling the lower float assembly upward, showing the condition of full water drainage.
Fig. 4. is the condition of pulling the floats upward to make partial water drainage, and the hypothetical lines indicate the possible descending conditions of the upper float assembly following the water level while gradually drained.
Fig. 5. is the extention of Fig. 3. When the drainage is continued, the weight of the upper float will be gradually given to the lower float, and the lower float will rapidly descend as shown in this fig.
Fig. 6. is the top view of the hand-push operation controller, from which two pulling levels are shown to respectively control the pulling lugs of the upper and lower float assemblies.
Fig. 7. is the front view of the hand-push operation controller.
Fig. 8. it shows that, when the pulling handle which controls the lower float assemble is pulled down, the control level A will also go up to pull the lower float assembly upward and form the condition of full amount of water.
Fig. 9. is the sectional view of Fig. 6 B-B.
BRIEF DESCRIPTION OF THE PREFERRED
EMBODIMENT
This invention is mainly divided into two parts, one is the drainage system, another is the handpush operation controller, and they will be described respectively as follows:
Fig. 1 is the sectional view of the water drainage system, in which the drainage pipe (1) is tightly clamped at the reserved hole of the water tank's bottom by the water-stop washer (2) and the lock bolt (3). All the above mentioned is equivalent to the spare parts used by the customary water tank. The air pipe (5) of this invention is fixed by a supporting fram (lea) at the central upper position of the drainage pipe (1), it is purposed to help release air for making smooth water flow to get rid of the affection made by the air bubble, in the meantime, to increase the drainage speed and the flush force.Fig. 2 shows the inter-relation between the air pipe and the drainage pipe (1). As shown is Fig. 1, a fixing clamp (6) is set at the upper of the air pipe (5), a movable hanger (7) is set on the fixing clamp (6), an up and down movable water-stop socket (8) is put to sleeve the air pipe (5) under the fixing clamp (6), an lower float (9) and a water-stop rubber lid (10) are installed under the water-stop socket (8), an up and down adjustable fixing rubber ring (11) is installed at the middle section of the water-stop socket (8) and a pulling lug A (12) is at the upper end of the water-stop socket (8), an up and down movable and its equipment are put between the fixing rubber ring (11) and the pulling lug A (12) of the water-stop socket (8).
An upper float is installed above the upper float socket (13), and the upper end of the upper float socket is designed to have an umbrella-shaped hook (15).
As to the fixing clamp (6), please refer to Fig. 6.
It is tightly fixed against the air pipe (5) by a screw (6a), and its structure comprises two clamping arms (6b), on which it is a fixing pin (6c) going through the hole (7a) of the hanger (7). Since the diameter of the hole (7a) is bigger than the one of the fixing pin (6b), so the hanger can easily move by applying the hole (7a) as the center of the circle. Fig. 1, 2, 3 and 4 show that the hanger (7) has a hanging handle (7b) to be hung at the fixing pin (6c) and a hole (7a). It appears in C-type hook at the lower portion of the hanging handle (7b) and a pulling lug B (7c) is installed on the back of the hook; at one end of the C-type is a top-stop end (7d), which is generally against the outer perimenter of the air pipe (5); at another end of the C-type is an arc hook lug (7e), which is in straight line shape at its upper portion and is in arc shape at its lower portion.Since the above mentioned device has applied the hole (7a) of the hanging handle (7a) as the center of the circle to make the weights at both left and rights unequivalent under the vertical line, and due to the center of the gravity, the arc hook lug (7e) will incline toward in the direction of the air pipe (5) as shown in the hypothetical lines of Fig. 4.
As to the above mentioned top-stop end (7d) of the hanging handle (7), it is generally against the
outer perimenter of the air pipe (5). However,
when this invention is flushing in full amount of
water, it will also function as the up-rise limit of
the water-stop socket (8) (as Fig. 3 shows). When
flushing in partial amount of water, it will be
against the water-stop socket (8) making the arc
hook lug (7e) unable to hook the umbrella-shaped
hook (15) of the upper float socket (13) (as Fig. 4
shows).The pulling lug B (7c) is used to help the
pulling level (20d) pull the hanging handle (7)
upward and make the arc hook lug (6e) release
from the umbrella-shaped hook (15), then, all the
upper float assembly (i.e. the integral
components of the upper float socket (13), the
upper float (14) and the umbrella-shaped hook (1 5)) will follow the water level to descend.
The upper float assembly, as above mentioned,
includes the float socket (13), the upper float (14)
and the umbrella-shaped hook. Its integral specific
gravity is smaller than water, so that the upper float is always buoyant over water. The float socket is a columnar matter. As its inner diameter
is slightly bigger than the outer diameter of the water-stop socket (8), therefore, the upper float assembly can make up and down movement around the outer perimeter of the water-stop socket (8). The top of the upper float socket (13) is
designed into an umbrella-shaped hook being
spread outside, its bottom is in hook-like and its
upper is oblique angle (1 5a). The purpose of being
hook-like is that the arc hook lug (7e) of the
hanger (7) can hook the upper float assembly (as
Fig. 3 shows).The purpose of oblique angle device
(1 5a) is that, when the upper float assembly is
gradually following the water level to rise, it can
also rise, by going through the arc hook lug (7e),
to the position where the arc hook lug (7e) can
hook the umbrella-shaped hook (15). The upper
float (14) is a hollow spherical matters (or other
matters) which specific gravity is smaller than
water in the specific gravity and make them to
have proper weight in order to smoothly push
down the lower float assembly when giying a
pressure to the lower float assembly.
The fixing rubber ring (11) is made from an
elastic rubber material and it is devised to clamp
on the water-stop socket (8). Its usage is that,
when this invention is drained in partial amount,
the upper float assembly will be unable to follow
the water level continuing to descent while
descending to the fixing rubber ring (11), thus
giving its self weight to the lower float assembly
(Incl. the water-stop socket (8), the lower float (9),
the water-stop rubber lid (10), the fixing rubber
ring (11) and the pulling lub A (12)) to make the
lower float assembly descent and the water-stop rubber lid (10) cover the drainage pipe (1). With the above in mind, it is easily understood that, the partial drainage is made just by moving the fixing rubbering (11) up and down.
The lower float assembly, as above mentioned, comprises the waterstop socket (8), the lower float (9), the water-stop rubber lid (10), the fixing rubber ring (11) and the pulling lug A (12) which is seated at the upper end of the water-stop socket (8). Its integral specific gravity is smaller than water. When the water-stop rubber lid (10) gets away from the opening of the drainage pipe (1) to a certain distance, the pressure being given to the drainage outlet and its self weight will become smaller than the integral buoyant force, and the lower float assembly will rise to form the drainage condition.
With reference to the above mentioned waterstop socket (8), it is a columnar matter. As its inner diameter is slightly bigger than the outer perimeter of the air pipe (5). Its height shall be the up-rise limit of the water level in the water tank.
However, in the practical application, it height is usually kept within 4 3 height of the upper float (14). The lower float (9) is a measure to make the specific gravity of the whole lower float assembly smaller than water, and it can be made by a hollow matter or polylon material. The waterstop rubber lid (10) is under the water-stop socket (8), it is made by the materials such as rubber and etc., and its inner ring is tightly clipping the lower portion of the water-stop socket (8); its outer perimeter forms an elastic circular arc to be tightly connected with the drainage outlet in avoidance of leakage and keeps lasting for long use. The pulling lug A ( 12) is used for letting the pulling level A (1 9d) go through so as to pull the whole lower float assembly upward.
Summarizing for the above, one important key must be noted, that is, although the specific gravity of the lower float assembly is smaller than water, it is still remained on the drainage outlet while filling full amount of water, for which the reason is that the total of the water pressure being given to the drainage outlet and the weight of the lower float assembly is bigger than the buoyant force of the lower float assembly. With the above in mind, it is understood that, if the pulling lug A (12) is pulled upward to a certain point where the buoyant force is bigger than the weight, the lower float assembly will rise upward. Fig. 3 shows that the pulling level A (1 9d) is pulling the lower float assembly upward and becomes in full drainage condition. It means that, when water is drained to a certain point where the buoyant force is equivalent to the weight of the lower float
assembly, the lower float assembly will descend.
However, in the said condition, the upper float
assembly is still hanging due to the fact that the
hanger (7) still hooks the umbrella-shaped hook.
Fig. 4 shows that the pulling levels A ( 1 9d) and
B (20d) are pulling the pulling lugs A (12) and B
(7c) upward at the same time, then, the lower
float assembly will follow to rise; the water-stop
socket (8) will be put against the lower portion of
the fixing clamp (6); the top-stop end (7d) of the hanger (7) will be put against the outer perimeter of the water-stop socket (8). When the arc hook lug (7e) does not hook the umbrella-shaped hook (1 5) of the upper float assembly, the upper float assembly will follow the water level (as the hypothetical lines show) to descend down to the location of the fixing rubber ring and give its self weight to the lower float assembly to make the lower float assembly gradually descend.
Fig. 5 shows that the lower float assembly descends due to the above mentioned actions.
When it gets a certain distance away from the drainage outlet, the water pressure will occur to the drainage outlet and consequently, the lower float assembly will rapidly descend against the drainage outlet. At this time, since water is continuously flowing into the water tank, the upper float assembly will follow the water level to rise up to the full amount of water, and it is just the time that the umbrella-shaped hook (15) of the upper float assembly is hooked by the hanger (7).
Fig. 6 shows that the interrelation between the hand-push operation controller and the drainage system, (1 6) represents the side wall of the water tank; (1 6a) is a reserved hole, which is commonly in square form; (17) is a hollow and columnar scarf joint, which has spiral (1 7a) and is tightly screwed with a lock nut; (19) is a partial drainage controller; (20) is a full drainage controller. The said partial drainage controller (19) has a pushing level (1 9a) and it is a hollow and columnar turning pipe with an outer diameter slightly smaller than the inner diameter of the scarf joint (17). There is a cutting angle (1 9c) in front of the turning pipe (1 9b), this cutting angle ( 1 9c) is utilized to tightly screw the fixing head (1 9e) of the pulling level A (1 9d) with a bolt.Full drainage controller also has a pushing handle (20a) and a turning level (20b) with an outer diameter slightly smaller than the inner diameter of the turning pipe (1 9b). There is a cutting angle (20c) in front of the turning level (20b), this cutting angle (20c) is utilizied to screw the fixing head (20e) of the pulling level B (20d).
Both the said pulling levels are separately inset into the pulling lugs B and A in order to control the pulling actions of these pulling lugs.
As shown in Fig. 6,7 and 8, the pushing handle ( 1 9a) is above the pushing handle (20a). When operating, if the pushing handles (1 9a) and (20a) are pushed down at the same time, then, the pulling levels A (1 9d) and B (20d) will follow to rise upward and pull the pulling lugs B (7c) and A (12) to form a partial drainage condition, as shown in Fig. 4 and 5. Fig. 8 shows that, if just the pushing handle (20a) is pushed down, then, only the pulling level A (1 9d) will follow to rise upward, which means that just the pulling lug A (12) will be pulled upward to form a full drainage condition, as Fig. 2 shows. Fig. 9 is a sectional view of Fig. 6 B-B, from which it is clearly seen what structure the hand-push operation controller is.
Claims (5)
1. A selectable flush mechanism for a water closet or the like, comprising: a central upright air pipe arranged to be fixed in the outlet opening from a water tank of a water closet; upper and lower float assemblies mounted for reciprocation in the axial direction of said pipe; stop means mounted on the lower float assembly for limiting downward movement of the upper float assembly relative to the lower; a first operating arrangement for opening a stop valve at said outlet opening and to allow said upper float assembly to move relative to said lower, such that when descent of the upper float assembly is arrested at the stop means, the weight of the upper float assembly acting on the lower is sufficient to overcome buoyancy of the lower to close said stop valve thereby to limit the volume of flush to a relatively low volume; and a second operating arrangement providing for a substantially higher volume flush, which arrangement is effective to open said stop valve and to operate said lower float assembly without operating said upper float assembly thereby to permit a substantially higher volume of flush.
2. A kind of drainage control system, which will produce two different water drainage for the flush toilet use.
The system comprises:
A) The hanger equipment for hooking or releasing the upper float assembly, which is installed above the air pipe, and the air pipe is at the central upper position of the drainage outlet.
B) The upper float assembly has a specific gravity smaller than water, and it makes actions
along the socket of the lower float assembly; its
descending movement will be ended at the fixing
rubber ring's location, and from where its self
weight will be given to the lower float assembly in
order to descend the lowerfloat.
C) The lower float assembly also has a specific
gravity smaller than water, and it makes
movement along the air pipe. Further, it will make
itself isolated from water by installing a water
stop socket. There is a water-stop rubber lid to
cover the drainage outlet.
3. The hanger and upper float assembly as claimed in claim 2, characterized in that the hanger comprises an arc hook lug and a pulling lug used to pull the arc hook lug apart. The arc hook lug can hook the umbrella-shaped hook of the upper float assembly. There is an oblique angle above the umbrella-shaped hook, which is set for hooking by the arc hook lug when the upper float assembly follows the water level to rise upward.
4. The lower float assembly as claimed in claim 2, characterized in that it comprises a water-stop socket. A pulling lug is set above the water-stop socket; an up and down adjustable fixing rubber ring is put at the middle section of the water-stop socket, and under the water-stop socket are installed a float and a water-stop rubber lid.
5. A selectable flush mechanism for a water closet or the like, substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8014243A GB2077790A (en) | 1980-04-30 | 1980-04-30 | Dual flush water closet cisterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8014243A GB2077790A (en) | 1980-04-30 | 1980-04-30 | Dual flush water closet cisterns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2077790A true GB2077790A (en) | 1981-12-23 |
Family
ID=10513103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8014243A Withdrawn GB2077790A (en) | 1980-04-30 | 1980-04-30 | Dual flush water closet cisterns |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2077790A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985000047A1 (en) * | 1983-06-14 | 1985-01-03 | Konrad Altmann | Water flushing tank for wc |
| EP0185940A2 (en) * | 1984-11-23 | 1986-07-02 | Konrad Dr. Altmann | Toilet flushing reservoir |
| EP0268381A1 (en) * | 1986-10-20 | 1988-05-25 | Caroma Industries Limited | Dual flush cistern mechanism |
| AU597438B2 (en) * | 1986-10-20 | 1990-05-31 | Caroma Industries Limited | A dual flush cistern mechanism |
| EP0448092A1 (en) * | 1990-03-22 | 1991-09-25 | Dorino Marabese | Flush tank structure particularly for the controlled and differentiated washing of toilet bowls in sanitary fittings and the like |
| FR2662723A1 (en) * | 1990-05-31 | 1991-12-06 | Havard Pascal | Water-receiving device for a low-level cistern with two discharge capacities, having a nominal flow rate in both cases |
| FR2676480A1 (en) * | 1991-05-16 | 1992-11-20 | Tolbert Timothy | Removal device for cistern, with variable discharge |
| US5235707A (en) * | 1991-09-13 | 1993-08-17 | Wang On Kwok | Water tank for a flushing system with two-step flow control |
| US5249313A (en) * | 1992-02-03 | 1993-10-05 | Chang Fong Chyi | Control device for a pull type flush tank |
| GB2283993A (en) * | 1993-11-10 | 1995-05-24 | Caroma Ind Ltd | Dual flush mechanism for an internal cistern |
| EP0715034A1 (en) | 1994-11-29 | 1996-06-05 | Ifö Sanitär AB | Flushing device for waterclosets |
| AU673959B2 (en) * | 1993-11-10 | 1996-11-28 | Caroma Industries Limited | A cistern mechanism |
| US5657494A (en) * | 1995-01-16 | 1997-08-19 | Geberit Technik Ag | Toilet flushing device |
| ES2113241A1 (en) * | 1994-02-28 | 1998-04-16 | Idrols Sa | Two-stage flush discharge device |
| FR2758838A1 (en) * | 1997-01-28 | 1998-07-31 | Sanitaire Accessoires Services | WC cistern discharge mechanism |
| EP0995846A1 (en) * | 1998-10-23 | 2000-04-26 | VALSIR S.p.A. | Float for flush valves, and modular-valve system featuring such a float |
| US6728975B2 (en) * | 2002-08-30 | 2004-05-04 | American Standard Inc. | High performance flush valve assembly |
-
1980
- 1980-04-30 GB GB8014243A patent/GB2077790A/en not_active Withdrawn
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985000047A1 (en) * | 1983-06-14 | 1985-01-03 | Konrad Altmann | Water flushing tank for wc |
| EP0185940A2 (en) * | 1984-11-23 | 1986-07-02 | Konrad Dr. Altmann | Toilet flushing reservoir |
| EP0185940A3 (en) * | 1984-11-23 | 1987-08-26 | Konrad Dr. Altmann | Toilet flushing reservoir |
| EP0268381A1 (en) * | 1986-10-20 | 1988-05-25 | Caroma Industries Limited | Dual flush cistern mechanism |
| US4882793A (en) * | 1986-10-20 | 1989-11-28 | Caroma Industries, Ltd. | Dual flush cistern mechanism |
| AU597438B2 (en) * | 1986-10-20 | 1990-05-31 | Caroma Industries Limited | A dual flush cistern mechanism |
| EP0448092A1 (en) * | 1990-03-22 | 1991-09-25 | Dorino Marabese | Flush tank structure particularly for the controlled and differentiated washing of toilet bowls in sanitary fittings and the like |
| FR2662723A1 (en) * | 1990-05-31 | 1991-12-06 | Havard Pascal | Water-receiving device for a low-level cistern with two discharge capacities, having a nominal flow rate in both cases |
| FR2676480A1 (en) * | 1991-05-16 | 1992-11-20 | Tolbert Timothy | Removal device for cistern, with variable discharge |
| US5235707A (en) * | 1991-09-13 | 1993-08-17 | Wang On Kwok | Water tank for a flushing system with two-step flow control |
| US5249313A (en) * | 1992-02-03 | 1993-10-05 | Chang Fong Chyi | Control device for a pull type flush tank |
| GB2283993A (en) * | 1993-11-10 | 1995-05-24 | Caroma Ind Ltd | Dual flush mechanism for an internal cistern |
| GB2283993B (en) * | 1993-11-10 | 1996-11-13 | Caroma Ind Ltd | A dual flush cistern mechanism for an internally mounted cistern |
| AU673959B2 (en) * | 1993-11-10 | 1996-11-28 | Caroma Industries Limited | A cistern mechanism |
| ES2113241A1 (en) * | 1994-02-28 | 1998-04-16 | Idrols Sa | Two-stage flush discharge device |
| EP0715034A1 (en) | 1994-11-29 | 1996-06-05 | Ifö Sanitär AB | Flushing device for waterclosets |
| US5659903A (en) * | 1994-11-29 | 1997-08-26 | Ifo Sanitar Ab | Flushing device for water-closets |
| US5657494A (en) * | 1995-01-16 | 1997-08-19 | Geberit Technik Ag | Toilet flushing device |
| FR2758838A1 (en) * | 1997-01-28 | 1998-07-31 | Sanitaire Accessoires Services | WC cistern discharge mechanism |
| EP0995846A1 (en) * | 1998-10-23 | 2000-04-26 | VALSIR S.p.A. | Float for flush valves, and modular-valve system featuring such a float |
| US6728975B2 (en) * | 2002-08-30 | 2004-05-04 | American Standard Inc. | High performance flush valve assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |