GB2133053A - Automatic flushing system for a urinal - Google Patents
Automatic flushing system for a urinal Download PDFInfo
- Publication number
- GB2133053A GB2133053A GB08300087A GB8300087A GB2133053A GB 2133053 A GB2133053 A GB 2133053A GB 08300087 A GB08300087 A GB 08300087A GB 8300087 A GB8300087 A GB 8300087A GB 2133053 A GB2133053 A GB 2133053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control device
- flushing
- urinal
- inlet valve
- conductivity
- 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- Withdrawn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
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
A control device (6) detects the electrical conductivity of the fluid located in the outlet trap (2) of the urinal (1) by means of two probes. When, during use of the urinal, the conductivity exceeds a predetermined value, the control device (6) initiates a delay period. After this period of time has expired, the control device (6) opens an inlet valve (9) in the water supply pipe (4), whereupon the flushing tank (3) is flied with water. The discharge valve (5) initiates the flushing operation as soon as a predetermined water level is reached in the flushing tank (3). The control device (6) closes the inlet valve (9) when the conductivity of the fluid drops below a predetermined value. The flushing operation is terminated after the flushing tank (3) has been emptied. <IMAGE>
Description
SPECIFICATION
Automatic flushing system for a urinal
The invention relates to an automatic flushing system for a urinal.
The consumption of water in public urinals is frequently substantially greater than would be necessary for satisfactory hygienic flushing. Thus, flushing systems are known which have electrical time switches which initiate a flushing operation at predetermined intervals of time. In systems of this kind, a flushing operation is initiated even when the urinal has not been used. Urinals are also known which have a pressure-drop switch which initiates a flushing operation when water is being drawn from the common water supply conduit at an adjacent wash basin. In this case, a flushing operation is initiated even when water is only being drawn at the wash basin and the urinal has not been used.
Therefore, an object of the invention is to provide for a urinal a flushing system which has a minimum of water consumption and which is operationally reliable and can be manufactured relatively inexpensively.
The present invention resides in a flushing system for a urinal having an outlet siphon, comprising a flushing tank to which a water supply pipe leads and which is provided with a discharge valve adapted to open when the water in the flushing tank has reached a predetermined level and to reclose after a flushing operation, a control device having probes by means of which the conductivity of the fluid in the outlet siphon is measurable, and an inlet valve is provided in the water supply pipe leading to the flushing tank, the control device being arranged to open the inlet valve when the measured conductivity exceeds a predetermined value, so that the flushing tank is filled, and to reclose the inlet valve after the measured conductivity has dropped below a predetermined value.
The invention will be further described hereinafter, by way of example, with reference to the accompanying drawings, in which:
Fig. 1 is a diagrammatic illustration of a urinal, having a flushing system according to one embodiment of the invention,
Fig. 2 is a front view of an outlet siphon of the urinal,
Fig. 3 is a partially sectioned side elevation of the urinal outlet siphon,
Fig. 4 is a view of an inlet valve and a control device, and
Fig. 5 is a diagrammatic illustration of the electrical circuit of the flushing system.
The installation illustrated in Fig. 1 has a flushing tank 3 which can be filled through a water supply pipe 4. A discharge valve 5 of the flushing tank operates on the known suction principle, that is to say, the discharge valve 5 opens when the water in the flushing tank 3 has risen a predetermined level. The water flows through the feed pipe 10 into the urinal 1 and into a siphon or
U-trap 2 which is connected to an outlet pipe in a conventional manner. In the present instance, probes 7 and 8 (Fig. 3) which are not visible in Fig.
1 are connected to the outlet siphon 2 and are in contact with the fluid trapped in the siphon 2. The probes 7 and 8 are electrically connected to a control device 6 by way of the leads 11 and 12.
The control device 6 detects the value of the conductivity of the fluid in the outlet siphon 2 by means of the probes 7 and 8. When the urinal is being used, the conductivity of the fluid is increased by the contamination and exceeds a value previously set at the control device 6. When this conductivity value is exceeded, the control device 6 produces a signal which starts a delay period which has been preset by means of a step switch. After this period of time has expired, the control device 6 opens an inlet valve 9, such as a solenoid valve, in the supply pipe 4 by way of the leads 13 and 14, so that water flows into the flushing tank 3, the supply pipe 4 and the valve 9 being shown diagrammatically and not in their true locations in Fig. 1. When the water in the flushing tank 3 reaches the predetermined level, the discharge valve 5 opens and initiates the flushing operation.The inlet valve 9 then remains open until the conductivity of the water in the outlet siphon 2 has dropped below a predetermined limit value.
The outlet siphon 2 illustrated in Figs. 2 and 3 is connected to the urinal 1 by means of a connection piece 15, and to an outlet conduit (not illustrated) by means of the rotatable outlet pipe 1 6. The siphon 2 is located in' a housing 1 7. The wall 1 8 of the siphon has two through openings 19 and 20 into which the probes 7 and 8 are fitted. The electrical contact regions 21 of the probes 7 and 8 are located in the interior of the siphon 2, so that the probes are surrounded by the fluid trapped therein. The probes 7 and 8 are connected to the leads 11 and 1 2 by means of terminal connectors 22 and 23.
Fig. 4 shows the region of the water intake pipe 4 in which the inlet valve 9 is fitted. The valve 9 is located in a housing 24 in which the control device 6 is also disposed. The valve 9 is a solenoid valve and is connected to the control device 6 by way of the electrical terminals 28. A stop valve 29 is connected upstream of the valve 9. The control device 6 is provided with a step switch 30 by which the delay period can be preset in any one of a plurality of gradations (for example 5, 10, 15 or 20 minutes).
The terminal 26 of the control device 6 is connected to a mains electricity supply by way of a transformer 31 (Fig. 5) which is not shown in
Fig. 4. Furthermore, the control device 6 has terminals 25 and 27 for the leads 11 and 12 connected to the probes 7 and 8, and for the leads 13 and 14 connected to the valve 9.
Fig. 5 shows, diagrammatically, the electrical connection of the control device 6 to the probes 7 and 8, to the mains supply 32 and to the valve 9.
Several urinals can be controlled simultaneously by one control device 6.
Alternatively, the control device 6 can be accommodated separately in a wash and brush-up cubicle or the like.
Claims (4)
1. An automatic flushing system for a urinal, having an outlet siphon comprising a flushing tank to which a water supply pipe leads and which is provided with a discharge valve adapted to open when the water in the flushing tank has reached a predetermined level and to reclose after a flushing operation, a control device having probes by means of which the conductivity of the fluid in the outlet siphon is measurable, and an inlet valve is provided in the water supply pipe leading to the flushing tank, the control device being arranged to open the inlet valve when the measured conductivity exceeds a predetermined value, so that the flushing tank is filled, and to reclose the inlet valve after the measured conductivity has dropped below a predetermined value.
2. An automatic flushing system as claimed in claim 1, in which the control device has a delay device, so that the inlet valve is opened only after an adjustable time delay has expired after the predetermined conductivity value has been reaches
3. An automatic flushing system as claimed in claim 1 or 2, in which the inlet valve is a solenoid valve.
4. An automatic flushing system for a urinal, constructed, arranged and adapted to operate substantially as herein described with reference to and as illustrated in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08300087A GB2133053A (en) | 1983-01-05 | 1983-01-05 | Automatic flushing system for a urinal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08300087A GB2133053A (en) | 1983-01-05 | 1983-01-05 | Automatic flushing system for a urinal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8300087D0 GB8300087D0 (en) | 1983-02-09 |
| GB2133053A true GB2133053A (en) | 1984-07-18 |
Family
ID=10535861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08300087A Withdrawn GB2133053A (en) | 1983-01-05 | 1983-01-05 | Automatic flushing system for a urinal |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2133053A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2163785A (en) * | 1984-08-28 | 1986-03-05 | Metalseal | Control device for automatic flushing systems |
| GB2165271A (en) * | 1984-09-07 | 1986-04-09 | Messengers | Electrically controlled flushing system |
| GB2201699A (en) * | 1987-02-23 | 1988-09-07 | John Lloyd Parry Jones | Automatically flushing urinal |
| EP0924354A2 (en) | 1997-12-17 | 1999-06-23 | Villeroy & Boch Ag | Device for the control of a urinal flushing mechanism |
| DE10111210A1 (en) * | 2001-03-08 | 2002-10-10 | Mepa Dipl Ing Robert Kuehnel G | Controlling flushing of urinal, involves measuring conductivity with reference electrode on inlet side of odor trap and electrode on other side of overflow level of odor trap on outlet side |
| DE102004033130A1 (en) * | 2004-07-08 | 2006-02-09 | Mepa-Pauli Und Menden Gmbh | Automatic flushing control for urinal has electrodes to monitor the concentration in the water trap and the concentration in the overflow |
| CN101368401B (en) * | 2008-10-10 | 2011-01-12 | 上海科勒电子科技有限公司 | Concealed inductor and urinal equipped with the same |
| CN104963395A (en) * | 2015-06-29 | 2015-10-07 | 周玉林 | Automatic radar scanning type male urinal flushing device |
| CN105297868A (en) * | 2015-09-30 | 2016-02-03 | 重庆跃发日用品有限公司 | Urinal capable of being conveniently and fast arranged |
| CN105332408A (en) * | 2015-11-17 | 2016-02-17 | 王志 | Human proximity time-delay automatic flushing device for male urinal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3497876A (en) * | 1966-02-23 | 1970-03-03 | Charles Edward Williams | Urinal flushing control system |
| GB1347925A (en) * | 1971-02-01 | 1974-02-27 | Bolbroe F | Urinal |
-
1983
- 1983-01-05 GB GB08300087A patent/GB2133053A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3497876A (en) * | 1966-02-23 | 1970-03-03 | Charles Edward Williams | Urinal flushing control system |
| GB1347925A (en) * | 1971-02-01 | 1974-02-27 | Bolbroe F | Urinal |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2163785A (en) * | 1984-08-28 | 1986-03-05 | Metalseal | Control device for automatic flushing systems |
| GB2165271A (en) * | 1984-09-07 | 1986-04-09 | Messengers | Electrically controlled flushing system |
| GB2201699A (en) * | 1987-02-23 | 1988-09-07 | John Lloyd Parry Jones | Automatically flushing urinal |
| EP0924354A2 (en) | 1997-12-17 | 1999-06-23 | Villeroy & Boch Ag | Device for the control of a urinal flushing mechanism |
| EP0924354A3 (en) * | 1997-12-17 | 1999-11-10 | Villeroy & Boch Ag | Device for the control of a urinal flushing mechanism |
| DE10111210A1 (en) * | 2001-03-08 | 2002-10-10 | Mepa Dipl Ing Robert Kuehnel G | Controlling flushing of urinal, involves measuring conductivity with reference electrode on inlet side of odor trap and electrode on other side of overflow level of odor trap on outlet side |
| DE10111210B4 (en) * | 2001-03-08 | 2005-05-12 | Mepa-Pauli Und Menden Gmbh | Method for controlling the flushing of a urinal |
| DE102004033130A1 (en) * | 2004-07-08 | 2006-02-09 | Mepa-Pauli Und Menden Gmbh | Automatic flushing control for urinal has electrodes to monitor the concentration in the water trap and the concentration in the overflow |
| CN101368401B (en) * | 2008-10-10 | 2011-01-12 | 上海科勒电子科技有限公司 | Concealed inductor and urinal equipped with the same |
| CN104963395A (en) * | 2015-06-29 | 2015-10-07 | 周玉林 | Automatic radar scanning type male urinal flushing device |
| CN105297868A (en) * | 2015-09-30 | 2016-02-03 | 重庆跃发日用品有限公司 | Urinal capable of being conveniently and fast arranged |
| CN105332408A (en) * | 2015-11-17 | 2016-02-17 | 王志 | Human proximity time-delay automatic flushing device for male urinal |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8300087D0 (en) | 1983-02-09 |
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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) |