CN101821461A - Water tank - Google Patents
Water tank Download PDFInfo
- Publication number
- CN101821461A CN101821461A CN200880109035A CN200880109035A CN101821461A CN 101821461 A CN101821461 A CN 101821461A CN 200880109035 A CN200880109035 A CN 200880109035A CN 200880109035 A CN200880109035 A CN 200880109035A CN 101821461 A CN101821461 A CN 101821461A
- Authority
- CN
- China
- Prior art keywords
- pipe
- bleed
- water tank
- outlet
- 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.)
- Granted
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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
- E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
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- 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)
- Sanitary Device For Flush Toilet (AREA)
- Float Valves (AREA)
Abstract
A kind of water tank (8) comprises a water box slot (10), a bleed off pipe (16) and a cap (28).Water box slot (10) has a predetermined maximum and fills water level (14).Bleed off pipe (16) has an inlet (18) and of filling on the water level (14) in predetermined maximum and exports (20).Cap (28) have one with bleed off pipe inlet (18) level outwards and vertically upward separated lower-most edge (30).
Description
Technical field
The present invention relates to a kind of water tank and outlet valve parts that are used for the toilet external member.This water tank is called as flushing tank in the U.S..
The present invention is mainly used in gravity flush water tank (being non-hydrocone type), and is described below with reference to the application.
Background technology
It is known using bleed off pipe in water tank.Bleed off pipe allows water to flow to from water tank on toilet or the floor, and can not cause any overflow or siphon refluence.When the water of water tank owing to being applied to negative pressure on the water tank inlet valve and being back to main water supply system, siphon will take place flow backwards.For example, the water of burst can cause the siphon refluence, and water is discharged from the sanitary plumbing systems of a highrise building.Water level in the water tank is risen on the bleed off pipe top, and this will increase the risk that siphon is flow backwards and taken place greatly.The management organization of many countries all requires to overflow air separation gap of existence between horizontal plane and any one the water tank opening in overflow in the water tank, siphon may take place at this place flow backwards.Yet this arrangement is also inadvisable, because the top that horizontal plane is much higher than bleed off pipe is overflowed in overflow, this has greatly increased the water tank minimum constructive height, installs and uses thereby reduced.
Known bleed off pipe depends at one of its top big opening, thereby the flow velocity of maximization bleed off pipe overflows horizontal plane thereby minimize overflow.Yet outlet valve itself also must be designed to the structure that allows water to pass through from bleed off pipe with a high relatively flow velocity.This has reduced the flexibility of design and has increased the required minimum dimension of outlet valve.
There is performance issue (for example on ceiling) equally in known water tank outlet valve when moving in higher installation site.One of them problem is one and exports flow velocity faster and cause outlet valve to be closed too early.This closing too early mainly caused by two problems.The first, formed a stopper effectively at the bath water of bleed off pipe internal flow, the water that leaves water tank herein applies a negative pressure (for example, siphonage), the valve closing that this makes.The second, these current will be removed from pipe as the air that the buoyancy of valve is originated equally, and therefore reduce the overall buoyancy of valve, cause it to close too early.
The problem of another one performance is that air is trapped in the jet water spout between water tank bottom and toilet rear portion in water-rinsing process.This air has formed an air lock, and the flow velocity of restriction bath water is closed and the air that allows to be caught in leaves water tank up to outlet valve.The fast-pulse that this will cause at the last water that discharges of bath causes occurring splashing, noise and reduce the removing ability of toilet.
The performance issue of the outlet valve that another one is known is, their can make the noise of rumble in the later stage of bath, and this is because air is drawn in the bleed off pipe downwards by Venturi effect and enters jet water spout inside.The generation of rumble noise is because water is constantly closed and reopen the bleed off pipe bottom subsequently.
In order to address the above problem, at different installation configurations, the plumber need use the limiter of a series of different sizes to remove to limit flow velocity by outlet valve usually.Though these can solve more aforesaid problems, this limiter is also influential to the removing performance of whole toilet, and needs test and error-detecting, to guarantee to find best solution.
Goal of the invention
The objective of the invention is to overcome in fact or improve one or more shortcomings in the above-mentioned shortcoming at least.
Summary of the invention
Therefore, first aspect the invention provides a kind of water tank, comprising:
One water box slot has a predetermined maximum and fills water level;
One bleed off pipe has one and is higher than an inlet and the outlet that predetermined maximum is filled water level; With
One cap, its have with bleed off pipe inlet level outwards and vertically upward separated lower-most edge.
It is cylindrical that described bleed off pipe and cap preferably are essentially.
Described cap is preferably top flat basically, that most preferably be circle, and most preferably is the columniform sidewall that depends on this substantially.
Described water box slot preferably includes a base and a bleed off pipe that extends through the water box slot base, and this bleed off pipe most preferably has a bleed off pipe outlet below the bottom land seat.
The lower-most edge of cap is preferably placed at 5mm on the bleed off pipe inlet.The lower-most edge of cap is preferably placed at the outside 10mm of bleed off pipe inlet level.
Second aspect the invention provides a water tank, comprising:
Water box slot with a bath outlet opening;
A bleed off pipe has a upper end and a lower end that communicates with atmosphere on the predetermined position of water-filling the most greatly;
A jet water spout is communicated with bath outlet opening fluid;
An outlet valve can open or close the bath outlet opening;
An outlet is communicated with below being positioned at and with the outlet valve fluid; With
A ventilating pipe has a upper end that is communicated with bleed off pipe lower end fluid, and a lower end that extends in the outlet.
Ventilating pipe preferably extends at least to a certain degree in outlet, thereby forms substantial laminar flow when Water flushing for cistern in outlet.
The ventilating pipe lower end preferably extends at least to a certain degree in outlet, thus when Water flushing for cistern below the ventilating pipe lower end formation one inc airbag.
The ventilating pipe lower end preferably extends at least to a certain degree in outlet, thereby the fluid that the outlet in the ventilating pipe lower end flows through does not extend on the whole cross section at outlet.
The length of ventilating pipe preferably approximately is 3 to 4 times of outlet diameter.The diameter of ventilating pipe preferably approximately is 1/3 of an outlet diameter.
Ventilating pipe preferably can be inserted in the bleed off pipe from the bleed off pipe upper end.The upper end of bleed off pipe is preferably greater than the lower end of bleed off pipe.The upper end of bleed off pipe preferably engages with the lower end of bleed off pipe.
The third aspect the invention provides a water tank outlet valve assembly, comprising:
A bleed off pipe has a upper end and a lower end that communicates with atmosphere on the predetermined maximum normal cistern water level;
A jet water spout is communicated with Water flushing for cistern outlet opening fluid;
An outlet valve can open or close the bath outlet opening; With
A ventilating pipe has a upper end that is communicated with bleed off pipe lower end fluid, and a lower end that extends in the outlet.
Description of drawings
The preferred embodiments of the present invention will reference will be made to the accompanying drawings by way of example hereinafter, wherein:
Fig. 1 shows the elevational sectional view of water tank first embodiment, and it has been filled into predetermined maximum ordinary water level.
Fig. 2 shows the view of water tank when overflow situation begins among Fig. 1.
Fig. 3 shows the view of water tank by the siphonage that forms under the overflow situation time among Fig. 1.
Fig. 4 shows the elevational sectional view of second embodiment of water tank, and it has the outlet valve of closing.
Fig. 5 shows the view of water tank after opening outlet valve among Fig. 4.
Fig. 6 shows one and is similar to water tank shown in Figure 4 view after opening outlet valve, but does not have ventilating pipe; With
Fig. 7 show among Fig. 6 water tank half towards the time view.
The specific embodiment
Fig. 1 to 3 shows a kind of embodiment with water tank 8 of groove 10.Fig. 1 shows the view of the groove 10 that the bath water 12 that arrived predetermined maximum ordinary water level 14 filled up.A bleed off pipe 16 that is positioned at groove 10 inside, it has the inlet 18 on a top and the outlet 20 of a bottom.The bottom of groove 10 has an outlet opening that is limited by valve seat 21, and this leads to an outlet bolt 22.This bolt 22 is connected on the jet water spout 24 by a reducer 25.Described jet water spout 24 is connected on the main drainage plant by a toilet or urinal, and this is well-known to those skilled in the art.
An outlet valve shown in the Reference numeral 26, and position adjacent with bolt 22 are thereon.Outlet valve 26 comprises a float 26a, an exit seal 26b and an exit seal locking nut 26c.
Described water tank 8 has a columniform basically cap 28, and this cap 28 has the edge 30 of foot.Edge 30 outwards and is vertically upward separated with bleed off pipe 18 levels that enter the mouth.In other words, the lower-most edge 30 of cap 28 is than the 18 high and extensions around bleed off pipe inlet 18 of bleed off pipe inlet.
The operation of water tank 8 when flooded conditions described now.As mentioned above, Fig. 1 shows the view of the water tank 8 of the water filling that is arrived maximum ordinary water level 14.When in groove 10 such water yield being arranged, bleed off pipe inlet 18 is than water level 14 height.
Fig. 2 shows in the water tank 8, and water level 14 begins to spill into bleed off pipe 16 inside from bleed off pipe inlet 18 from maximum ordinary water level rising and as shown in arrow 32, arrives the view of bleed off pipe outlet 20 afterwards.Overflow after the water mainly by jet water spout 24 and toilet or urinal and flow to sewer.
Fig. 3 shows in water tank 8, after the maximum stream flow that reaches bleed off pipe 16 and the view of the cross-sectional area of whole bleed off pipe 16 when all being filled up by water.This has formed a siphonage in pipe 16 inside.When siphonage takes place, cap 28 stops air to enter bleed off pipe 16 and destroys siphon.Therefore cap 28 has advantageously increased the flow of bleed off pipe 16, and it has utilized the potential energy of the water that leaves bleed off pipe 16 that water is drawn onto in the bleed off pipe 16 by siphonage from groove 10.For example, if groove 10 about 250mm are dark, 30 of the lower-most edge of cap 28 just have the water-head of 255mm that water is drawn onto 16 li of bleed off pipes than the bleed off pipe 18 high 5mm that enter the mouth.But, do not have the identical equipment of cap 28 can only provide the water-head of 5mm that water is drawn onto bleed off pipe inlet 18.Therefore, the equipment of this band cap is in theory than similar non-cap equipment on the ability of emptying groove more effective 50 times.This theoretic improvement does not reach in practice, because other effects limit current are arranged.But still reached tangible improvement.
What described cap 28 flow to water bleed off pipe 16 equally overflows water level limitation to the level that is equivalent to cap lower-most edge 30, up to the maximum siphon capacity that reaches bleed off pipe 16.
Described cap 28 same feed tanks 8 provide some other advantages.The first, cap does not influence the operation of Water flushing for cistern and backfill.The second, because siphonal use, cap having significant flowing to improve overflowing on the horizontal performance, and this has increased safety and design factor.The 3rd, cap has reduced the level height of overflowing of top, bleed off pipe top (i.e. inlet), thereby realizes compacter waterbox design, has therefore improved to install and has used.At last, cap has improved the flexibility of design, because it allows to use the less bleed off pipe with the moving restriction of more multithread.
Second embodiment of described water tank 8 ' is shown in Fig. 4 to 7.Same parts are used with Reference numeral identical shown in Fig. 1 to 3 and are represented.Water tank 8 ' comprises a ventilating pipe 32, and it has one and exports upper end 34 and that 20 fluids are communicated with bleed off pipe and extend to lower end 36 in the jet water spout 24.
The operation of water tank 8 ' is described during referring now to attached Figure 4 and 5 impacts flush.Fig. 4 shows the water of filling in the groove 10 and reaches the view of being scheduled to maximum ordinary water level 14.In order to begin bath, utilize button or lever (not shown) to operate a lifter (not shown equally) and promote bleed off pipe 16.This has promoted sealing 26b equally away from valve seat 21.As shown in Figure 5, this makes water withdraw from groove 10 by outlet bolt 22 and jet water spout 24.The air that is trapped among the float 26a provides buoyancy, and outlet valve 26 is held open.When outlet valve 26 discharges buoyancy, both because drawdown also because some mechanisms, outlet valve 26 descends and seals 26b simultaneously and combine with valve seat 21, thereby stops current.Water tank 8 ' is prepared another time bath by the backfill of an inlet valve (not shown) then.This flush operation is that those skilled in the art is known.
As shown in Figure 5, the lower end 36 of ventilating pipe 32 extends to a certain degree (degree of depth) in jet water spout 24, thereby laminar flow forms at this.This has stoped current to be got back in ventilating pipe 32 and the bleed off pipe 16, and therefore advantageously stops problem of closing too early previously discussed.
Fig. 6 shows the equivalent situation (for example water is back in the bleed off pipe 16) that takes place when lacking a ventilating pipe.
In addition, the water of spout 10 is owing to action of gravity is quickened.Along with the increase of water flow velocity, thereby taken a small cross section in jet water spout 24 inside long-pending, therefore forms the airbag 38 of closing never below ventilating pipe 32.This allows the air in jet water spout 24 to withdraw from by bleed off pipe 16, and therefore advantageously overcomes air lock problem previously discussed.This has caused forming consistent flow velocity in whole water-rinsing process.In addition, ventilating pipe 32 lower ends 36 are closed fully by water never, and the noise problem of rumble previously discussed can not occur yet.
Fig. 7 shows the equivalent situation (water has been closed the lower end of bleed off pipe 16) that takes place when lacking a ventilating pipe.
Although the present invention is described with reference to preferred implementation, those skilled in the art will be appreciated that the present invention can realize with other form.For example, bleed off pipe, cap and ventilating pipe can not be cylindrical and can be any cross sectional shape.
Claims (19)
1. water tank comprises:
A water box slot, it has a predetermined maximum and fills water level;
A bleed off pipe, it has in predetermined maximum inlet and outlet of filling on the water level; With
A cap, its have with bleed off pipe inlet level outwards and vertically upward separated lower-most edge.
2. water tank according to claim 1, wherein bleed off pipe and cap are essentially cylindrical.
3. water tank according to claim 1 and 2, wherein cap has a flat basically top and the sidewall that is fixed against this.
4. water tank according to claim 3, wherein the top of cap is circular.
5. according to claim 3 or 4 described water tanks, wherein the sidewall of cap is essentially cylindrical.
6. according to the described water tank of each claim the preceding, wherein water box slot comprises that a base and bleed off pipe extend through this base.
7. water tank according to claim 6, wherein the bleed off pipe outlet is below the bottom land seat.
8. according to the described water tank of each claim the preceding, wherein the lower-most edge of cap is positioned at 5mm on the bleed off pipe inlet.
9. according to the described water tank of each claim the preceding, wherein the lower-most edge of cap is positioned at the outside 10mm of bleed off pipe inlet level.
10. water tank comprises:
A water box slot, it has a bath outlet opening;
A bleed off pipe, it has a upper end and a lower end that communicates with predetermined maximum air of filling on the water level;
A jet water spout, it is communicated with bath outlet opening fluid;
An outlet valve, it can open or close the bath outlet opening;
An outlet, it is positioned at the below and is communicated with the outlet valve fluid; With
A ventilating pipe, it has a upper end and that is communicated with bleed off pipe lower end fluid and extends to the interior lower end of outlet.
11. water tank according to claim 10, its Center Vent tube extends at least to a certain degree in outlet, thereby forms substantial laminar flow in the outlet when Water flushing for cistern.
12. water tank according to claim 10, its Center Vent tube lower end extends at least to a certain degree in outlet, thereby the ventilating pipe lower end forms an inc airbag when Water flushing for cistern.
13. water tank according to claim 10, its Center Vent tube lower end extends at least to a certain degree in outlet, thereby does not extend on the whole cross section at outlet at the fluid that the outlet in the ventilating pipe lower end flows through.
14. according to each described water tank of claim 10 to 13, the length of its Center Vent tube approximately is 3 to 4 times of outlet diameter.
15. according to each described water tank of claim 10 to 14, the diameter of its Center Vent tube approximately is 1/3 of an outlet diameter.
16. according to each described water tank of claim 10 to 15, its Center Vent tube can be inserted in the bleed off pipe from the bleed off pipe upper end.
17. according to each described water tank of claim 10 to 16, wherein the upper end of bleed off pipe is greater than the lower end of bleed off pipe.
18. according to each described water tank of claim 10 to 17, wherein the upper end of bleed off pipe engages with the lower end of bleed off pipe.
19. a water tank outlet valve assembly comprises:
A bleed off pipe, it has a upper end and a lower end that communicates with predetermined maximum atmosphere of filling on the water level;
A jet water spout, it is communicated with bath outlet opening fluid;
An outlet valve, it can open or close the bath outlet opening; With
A ventilating pipe, it has a upper end and that is communicated with bleed off pipe lower end fluid and extends to the interior lower end of water tank outlet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2007904936A AU2007904936A0 (en) | 2007-09-10 | A cistern | |
| AU2007904936 | 2007-09-10 | ||
| PCT/AU2008/001257 WO2009033205A1 (en) | 2007-09-10 | 2008-08-26 | A cistern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101821461A true CN101821461A (en) | 2010-09-01 |
| CN101821461B CN101821461B (en) | 2012-07-04 |
Family
ID=40451463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801090351A Active CN101821461B (en) | 2007-09-10 | 2008-08-26 | Cistern |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN101821461B (en) |
| AU (2) | AU2008299565B2 (en) |
| CA (1) | CA2697425A1 (en) |
| NZ (1) | NZ583804A (en) |
| WO (1) | WO2009033205A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109937280A (en) * | 2016-06-10 | 2019-06-25 | 帝希有限公司 | Drain valve |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1403937B1 (en) * | 2011-02-15 | 2013-11-08 | Oliveira & Irmao Sa | OVERFLOW DEVICE OF A RINSE CASSETTE AND DRAIN VALVE OF A RINSING CASSETTE PROVIDED WITH THIS DEVICE |
| GB201315547D0 (en) * | 2013-09-01 | 2013-10-16 | Davies Brett | Toilet internal overflow, warning device |
| CN104088345A (en) * | 2014-06-06 | 2014-10-08 | 张家港市鸿钻贸易有限公司 | Flush toilet |
| IT201600113344A1 (en) * | 2016-11-10 | 2018-05-10 | Oliveira & Irmao Sa | OVERFLOW DEVICE OF A RINSE CASSETTE AND DRAIN VALVE WITH OVERFLOW DEVICE FOR A RINSING CASSETTE |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB872015A (en) * | 1958-12-11 | 1961-07-05 | William Henry Searl | Improvements in flushing apparatus |
| GB884636A (en) * | 1959-06-04 | 1961-12-13 | Robert Ernest Deveson | Improved flushing cistern |
| FR2473586A1 (en) * | 1980-01-15 | 1981-07-17 | Sauzet Rene | Water closet flushing mechanism - includes two-part tubular device with sections moving vertically w.r.t. one another to change amount of water discharged |
| SU1293289A1 (en) * | 1983-12-27 | 1987-02-28 | Московский научно-исследовательский и проектный институт жилищного хозяйства | Closure and outlet device for flush tank |
| US4922556A (en) * | 1987-11-09 | 1990-05-08 | Elwyn V. Harp | Flushing means |
| US5469585A (en) * | 1994-09-12 | 1995-11-28 | Shiue; Yaw-Ching | Flushing device of toilet |
| CZ172396A3 (en) * | 1995-08-04 | 1997-04-16 | Geberit Technik Ag | Cistern flushing system |
| PL1854926T3 (en) * | 2006-05-11 | 2012-12-31 | Geberit Int Ag | Outlet device for a flushing cistern |
-
2008
- 2008-08-26 CA CA2697425A patent/CA2697425A1/en not_active Abandoned
- 2008-08-26 WO PCT/AU2008/001257 patent/WO2009033205A1/en active Application Filing
- 2008-08-26 NZ NZ583804A patent/NZ583804A/en unknown
- 2008-08-26 AU AU2008299565A patent/AU2008299565B2/en active Active
- 2008-08-26 CN CN2008801090351A patent/CN101821461B/en active Active
-
2014
- 2014-05-26 AU AU2014202861A patent/AU2014202861B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109937280A (en) * | 2016-06-10 | 2019-06-25 | 帝希有限公司 | Drain valve |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2014202861B2 (en) | 2016-01-28 |
| CA2697425A1 (en) | 2009-03-19 |
| CN101821461B (en) | 2012-07-04 |
| WO2009033205A1 (en) | 2009-03-19 |
| NZ583804A (en) | 2011-11-25 |
| AU2008299565B2 (en) | 2014-06-19 |
| AU2008299565A1 (en) | 2009-03-19 |
| AU2014202861A1 (en) | 2014-06-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |