EP2862981B1 - System and method of controlling a flush toilet - Google Patents
System and method of controlling a flush toilet Download PDFInfo
- Publication number
- EP2862981B1 EP2862981B1 EP14171642.3A EP14171642A EP2862981B1 EP 2862981 B1 EP2862981 B1 EP 2862981B1 EP 14171642 A EP14171642 A EP 14171642A EP 2862981 B1 EP2862981 B1 EP 2862981B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solenoid valve
- flush toilet
- water
- controlling
- flushing
- 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.)
- Not-in-force
Links
- 238000000034 method Methods 0.000 title claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 81
- 238000011010 flushing procedure Methods 0.000 claims description 60
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 239000010865 sewage Substances 0.000 claims description 14
- 239000008400 supply water Substances 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/16—Water pressure regulating means in flushing pipes
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
-
- 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
- E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
-
- 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
-
- 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
- E03D5/105—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 touchless, e.g. using sensors
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
- E03D2201/30—Water injection in siphon for enhancing flushing
Definitions
- the present invention relates to a flush toilet, and more particularly to a system and a method of controlling the flush toilet.
- a conventional flush toilet contains a water tank (not shown) and a toilet body 10; the toilet body 10 includes a bowl 11, an inlet portion 12, a support portion 13, and a sewage draining conduit 14.
- the support portion 13 is integrally connected with a front side and a bottom end of the bowl 11.
- the bowl 11 includes a first flushing conduit 111 arranged on a peripheral side of a top end thereof and communicates with the inlet portion 12, the first flushing conduit 111 has a plurality of spouts 112 for flowing water from the water tank toward the bowl 11 via the inlet portion 12 and the first flushing conduit 111, such that the peripheral ring 113 or a seat ring of the toilet body 10 is flushed by the water.
- the bowl 11 also includes a flushing conduit 114 formed on a side wall thereof and a nozzle 115 defined on a distal end thereof so that the water from the water tank flows toward the sewage draining conduit 14 through the inlet portion 12 and the flushing conduit 114.
- the sewage draining conduit 14 is in communication with the bowl 11 so that the water flushes dirt out of the sewage draining conduit 14 through the plurality of spouts 112 and the nozzle 115.
- the conventional flush toilet matches with a control device or a valve to control water flow. Furthermore, a regulator valve or a depressurizing valve cooperates with the flush toilet to maintain a water pressure stably, for example, a conventional flow stabilizer for reducing the water pressure automatically is disclosed in CN Publication No. 102678994A .
- the regulator valve, the depressurizing valve, and the flow stabilizer can only stabilize the water pressure within a certain range, but they cannot keep a fixed water flow at a low water pressure or a high water pressure. For instance, when the conventional flow stabilizer is actually tested at the low water pressure or the high pressure, the water flow is decreased 20%.
- the present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
- One aspect of the present invention is to provide a system and a method of controlling a flush toilet which supply water stably to drain dirt and filth strongly.
- a system of controlling a flush toilet which toilet includes a first flushing channel and a second flushing channel, and the system contains:
- the control unit determines a first start time, a second start time and a third start time according to the pressure signal received from the water pressure sensor and starts the first solenoid valve for T1 seconds and then closes the first solenoid valve, and the control unit starts the second solenoid valve for T2 seconds and then closes the second solenoid valve; the first solenoid valve is started by the control unit for seconds and then is closed, wherein first start time, the second start time, and the third start time of the first solenoid valve and the second solenoid valve are not overlapped.
- a method of controlling a flush toilet comprising steps of:
- the water pressure in the depressurizing valve is sensed by a water pressure sensor.
- the first solenoid valve may be mounted at a predetermined position of a first water-supply pipe fitting which connects with the depressurizing valve, and the first solenoid valve may be coupled with a first flushing channel of the flush toilet.
- the second solenoid valve may be fixed at a predetermined position of a second water-supply pipe fitting which joins with the depressurizing valve, and the second solenoid valve may be in connection with a second flushing channel of the flush toilet.
- the starting times of the first solenoid valve and the second solenoid valve are not overlapped, so the first start time, the second start time, and the third start time are independent, such that a part of the water is supplied to flush the peripheral ring of the first flushing channel or the nozzle in the same time. Accordingly, the water is entirely flushed toward a single flushing conduit, such as the first flushing channel or the second flushing conduit, thus draining the dirt and the filth strongly.
- the first start time, the second start time, and the third start time are determined based on the water pressure in the depressurizing valve sensed by the water pressure sensor, and the pressure signal is calculated and determined by the control unit, such that when the water pressure is low, the starting times of the first solenoid valve and the second solenoid valve are prolonged. In contrast, when the water pressure is high, the starting times of the first solenoid valve and the second solenoid valve are shorten. Therefore, as flushing the water toward the peripheral ring of the first flushing channel or the sewage draining conduit, the water is supplied stably even through the water supply is at a low pressure or a high pressure.
- the flush toilet 20 includes a first flushing channel 21 and a second flushing channel 22, and the system of controlling the flush toilet 20 comprises a depressurizing valve 31, a first water-supply pipe fitting 32, a second water-supply pipe fitting 33, a first solenoid valve 34, a second solenoid valve 35, a water pressure sensor 36, and a control unit 37.
- the depressurizing valve 31 includes an inlet 311, a first outlet 312, and a second outlet 313.
- the inlet 311 is in connection with an inlet pipe fitting 314.
- the inlet pipe fitting 314 is coupled with a water supply 40.
- the first water-supply pipe fitting 32 is employed to supply water from the first outlet 312 of the depressurizing valve 31 toward the first flushing channel 21 of the flush toilet 20.
- the first flushing channel 21 communicates with a plurality of spouts 211 to flush the water toward a peripheral ring 23 on the flush toilet 20.
- the second water-supply pipe fitting 33 is applied to supply the water from the second outlet 313 of the depressurizing valve 31 toward the second flushing channel 22 of the flush toilet 20.
- the second flushing channel 22 is joined with a nozzle 221 to flush the water toward a sewage draining conduit 24.
- the first solenoid valve 34 is controlled to start and stop the first water-supply pipe fitting 32.
- the first solenoid valve 34 is mounted in the first outlet 312 of the depressurizing valve 31. But the first solenoid valve 34 can be also mounted at any position of the first water-supply pipe fitting 32.
- the second solenoid valve 35 is controlled to start and stop the second water-supply pipe fitting 33.
- the second solenoid valve 35 is fixed in the second outlet 313 of the depressurizing valve 31. But the second solenoid valve 35 can be also fixed at any position of the second water-supply pipe fitting 33.
- the water pressure sensor 36 is used to sense a water pressure in the depressurizing valve 31 and to transmit a pressure signal P.
- the control unit 37 is served to receive a flushing signal W started by a user and the pressure signal P from the water pressure sensor 36, such that after receiving the flushing signal W, a starting and closing sequence and starting times of the first solenoid valve 34 and the second solenoid valve 35 are controlled based on the pressure signal P.
- the flushing signal W is produced after the user starts a mechanical operation, such as touching a switch (such as a handle or a button).
- a mechanical operation such as touching a switch (such as a handle or a button).
- the flushing signal W is produced after a untouch operation, for instance, after the user triggers a sensing device, such as an infrared sensing device.
- the control unit 37 is any one of a CPU (Central Processing Unit), a MPU (Micro Processing Unit), and a MCU (Micro Control Unit).
- a DC power supply such as a battery 38, supplies power to the control unit 37.
- the water pressure sensor 36 is a mechanical sensor or an electronic sensor.
- the control unit 37 determines a first start time T1, a second start time T2, and a third start time T3 according to the pressure signal P received from the water pressure sensor 36 and starts the first solenoid valve 34 for T1 seconds and then closes the first solenoid valve 34, thereafter the control unit 37 starts the second solenoid valve 35 for T2 seconds and then closes the second solenoid valve 35. Finally, the first solenoid valve 34 is started by the control unit 37 for T3 seconds and then is closed.
- the depressurizing valve 31, the water pressure sensor 36, the first solenoid valve 34, the second solenoid valve 35, and the control unit 37 are installed in a controlling box 37.
- the method of controlling the flush toilet 20 comprises steps of:
- the flushing signal W is produced after the user starts the mechanical operation, such as touching the switch (such as the handle or the button).
- the flushing signal W is produced after the untouch operation, for instance, after the user triggers the sensing device, such as an infrared sensing device.
- the water pressure in the depressurizing valve 31 is sensed by the water pressure sensor 36.
- the first solenoid valve 34 is mounted at a predetermined position of the first water-supply pipe fitting 32 which connects with the depressurizing valve 31, and the first solenoid valve 34 is coupled with the first flushing channel 21 of the flush toilet 20.
- the second solenoid valve 35 is fixed at a predetermined position of the second water-supply pipe fitting 33 which joins with the depressurizing valve 31, and the second solenoid valve 35 is in connection with the second flushing channel 22 of the flush toilet 20.
- the system and the method of controlling the flush toilet of the present invention automatically control the starting and closing sequence and the starting times of the first solenoid valve 34 and the second solenoid valve 35 by means of the control unit 37, wherein the starting and closing sequence of the first solenoid valve 34 and the second solenoid valve 35 is to start and then to close the first solenoid valve 34, to start and then to close the second solenoid valve 35, and to start and then to close the first solenoid valve 34 again.
- the first solenoid valve 34 is started and then is closed so that dirt on the peripheral ring 23 is flushed toward a water seal
- the second solenoid valve 35 is started and then is closed so that the dirt and filth on the water seal is flushed toward the sewage draining conduit 24, thereafter the first solenoid valve 34 is started again to supply the water toward the water seal.
- the starting times of the first solenoid valve 34 and the second solenoid valve 35 are not overlapped, so the first start time T1, the second start time T2, and the third start time T3 are independent, such that a part of the water is supplied to flush the peripheral ring 23 of the first flushing channel 21 or the nozzle 211 in the same time. Accordingly, the water is entirely flushed toward a single flushing conduit, such as the first flushing channel 21 or the second flushing conduit 22, thus draining the dirt and the filth strongly.
- the first start time T1, the second start time T2, and the third start time T3 are determined based on the water pressure in the depressurizing valve 31 sensed by the water pressure sensor 36, and the pressure signal P is calculated and determined by the control unit 37, such that when the water pressure is low, the starting times of the first solenoid valve 34 and the second solenoid valve 35 are prolonged. In contrast, when the water pressure is high, the starting times of the first solenoid valve 34 and the second solenoid valve 35 are shorten. Therefore, as flushing the water toward the peripheral ring 23 of the first flushing channel 21 or the sewage draining conduit 24, the water is supplied stably even through the water supply 40 is at a low pressure or a high pressure.
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Aviation & Aerospace Engineering (AREA)
- Epidemiology (AREA)
- Mechanical Engineering (AREA)
- Sanitary Device For Flush Toilet (AREA)
Description
- The present invention relates to a flush toilet, and more particularly to a system and a method of controlling the flush toilet.
- As shown in
FIG. 1 , a conventional flush toilet contains a water tank (not shown) and atoilet body 10; thetoilet body 10 includes abowl 11, aninlet portion 12, asupport portion 13, and a sewage drainingconduit 14. Thesupport portion 13 is integrally connected with a front side and a bottom end of thebowl 11. Thebowl 11 includes a first flushingconduit 111 arranged on a peripheral side of a top end thereof and communicates with theinlet portion 12, the first flushingconduit 111 has a plurality ofspouts 112 for flowing water from the water tank toward thebowl 11 via theinlet portion 12 and the first flushingconduit 111, such that theperipheral ring 113 or a seat ring of thetoilet body 10 is flushed by the water. Thebowl 11 also includes a flushingconduit 114 formed on a side wall thereof and anozzle 115 defined on a distal end thereof so that the water from the water tank flows toward the sewage drainingconduit 14 through theinlet portion 12 and the flushingconduit 114. The sewage drainingconduit 14 is in communication with thebowl 11 so that the water flushes dirt out of the sewage drainingconduit 14 through the plurality ofspouts 112 and thenozzle 115. - The conventional flush toilet matches with a control device or a valve to control water flow. Furthermore, a regulator valve or a depressurizing valve cooperates with the flush toilet to maintain a water pressure stably, for example, a conventional flow stabilizer for reducing the water pressure automatically is disclosed in
CN Publication No. 102678994A . - However, the regulator valve, the depressurizing valve, and the flow stabilizer can only stabilize the water pressure within a certain range, but they cannot keep a fixed water flow at a low water pressure or a high water pressure. For instance, when the conventional flow stabilizer is actually tested at the low water pressure or the high pressure, the water flow is decreased 20%.
- Another system for controlling a flush toilet is shown for example in
US 5 204 999-A . - The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
- One aspect of the present invention is to provide a system and a method of controlling a flush toilet which supply water stably to drain dirt and filth strongly.
- To obtain the above, a system of controlling a flush toilet, which toilet includes a first flushing channel and a second flushing channel, and the system contains:
- a depressurizing valve including an inlet, a first outlet, and a second outlet; the inlet being in use in connection with an inlet pipe fitting;
- a first water-supply pipe fitting employed to supply water from the first outlet of the depressurizing valve toward the first flushing channel of the flush toilet;
- a second water-supply pipe fitting applied to supply the water from the second outlet of the depressurizing valve toward the second flushing channel of the flush toilet;
- a first solenoid valve controlled to start and stop the first water-supply pipe fitting;
- a second solenoid valve controlled to start and stop the second water-supply pipe fitting;
- a water pressure sensor used to sense a water pressure in the depressurizing valve and to transmit a pressure signal;
- a control unit served to receive a flushing signal started by a user and the pressure signal from the water pressure sensor, such that after receiving the flushing signal, a starting and closing sequence and starting times of the first solenoid valve and the second solenoid valve are controlled based on the pressure signal.
- Preferably, the control unit determines a first start time, a second start time and a third start time according to the pressure signal received from the water pressure sensor and starts the first solenoid valve for T1 seconds and then closes the first solenoid valve, and the control unit starts the second solenoid valve for T2 seconds and then closes the second solenoid valve; the first solenoid valve is started by the control unit for seconds and then is closed, wherein first start time, the second start time, and the third start time of the first solenoid valve and the second solenoid valve are not overlapped.
- In addition, a method of controlling a flush toilet comprising steps of:
- a. receiving a flushing signal started by a user by ways of a control unit;
- b. determining a first start time, a second start time, and a third start time by using the control unit based on a water pressure in a depressurizing valve;
- c. starting a first solenoid valve so that a peripheral ring on a flush toilet is flushed by a water for T1 seconds, and then closing the first solenoid valve after the peripheral ring is flushed;
- d. starting a second solenoid valve so that a sewage draining conduit is flushed for T2 seconds by the water and then closing the second solenoid valve after the sewage draining conduit is flushed;
- e. starting the first solenoid valve again so that the peripheral ring on the flush toilet is flushed by the water for T3 seconds and then the first solenoid valve is closed after the peripheral ring is flushed;
- f. flashing the steps a, b, c, d and e.
- The water pressure in the depressurizing valve is sensed by a water pressure sensor.
- The first solenoid valve may be mounted at a predetermined position of a first water-supply pipe fitting which connects with the depressurizing valve, and the first solenoid valve may be coupled with a first flushing channel of the flush toilet.
- The second solenoid valve may be fixed at a predetermined position of a second water-supply pipe fitting which joins with the depressurizing valve, and the second solenoid valve may be in connection with a second flushing channel of the flush toilet.
- It is to be noted that the starting times of the first solenoid valve and the second solenoid valve are not overlapped, so the first start time, the second start time, and the third start time are independent, such that a part of the water is supplied to flush the peripheral ring of the first flushing channel or the nozzle in the same time. Accordingly, the water is entirely flushed toward a single flushing conduit, such as the first flushing channel or the second flushing conduit, thus draining the dirt and the filth strongly.
- Preferably, the first start time, the second start time, and the third start time are determined based on the water pressure in the depressurizing valve sensed by the water pressure sensor, and the pressure signal is calculated and determined by the control unit, such that when the water pressure is low, the starting times of the first solenoid valve and the second solenoid valve are prolonged. In contrast, when the water pressure is high, the starting times of the first solenoid valve and the second solenoid valve are shorten. Therefore, as flushing the water toward the peripheral ring of the first flushing channel or the sewage draining conduit, the water is supplied stably even through the water supply is at a low pressure or a high pressure.
-
-
FIG. 1 is a cross sectional view of a conventional flush toilet. -
FIG. 2 is a cross sectional view showing a flush toilet suitable to be used in combination with the present invention. -
FIG. 3 is a schematic diagram of the system of controlling the flush toilet according to the preferred embodiment of the present invention, wherein a solid line shows a water supply arrangement, and a dotted line shows an electric circuit and a signal arrangement. -
FIG. 4 is a perspective view showing the system of controlling the flush toilet being applied in the flush toilet according to the preferred embodiment of the present invention, wherein the system contains a depressurizing valve, a water pressure sensor, a first solenoid valve, a second solenoid valve, and a control unit. -
FIG. 5 is a block flow chart of a method of controlling a flush toilet according to a preferred embodiment of the present invention. - With reference to
FIGS. 2-3 , a system of controlling aflush toilet 20 according to a preferred embodiment of the present invention, theflush toilet 20 includes afirst flushing channel 21 and asecond flushing channel 22, and the system of controlling theflush toilet 20 comprises a depressurizingvalve 31, a first water-supply pipe fitting 32, a second water-supply pipe fitting 33, afirst solenoid valve 34, asecond solenoid valve 35, awater pressure sensor 36, and acontrol unit 37. - As shown in
FIG. 4 , the depressurizingvalve 31 includes aninlet 311, afirst outlet 312, and asecond outlet 313. Theinlet 311 is in connection with an inlet pipe fitting 314. Theinlet pipe fitting 314 is coupled with awater supply 40. - The first water-
supply pipe fitting 32 is employed to supply water from thefirst outlet 312 of the depressurizingvalve 31 toward the first flushingchannel 21 of theflush toilet 20. The first flushingchannel 21 communicates with a plurality ofspouts 211 to flush the water toward aperipheral ring 23 on theflush toilet 20. - The second water-
supply pipe fitting 33 is applied to supply the water from thesecond outlet 313 of the depressurizingvalve 31 toward the second flushingchannel 22 of theflush toilet 20. The second flushingchannel 22 is joined with anozzle 221 to flush the water toward a sewage drainingconduit 24. - The
first solenoid valve 34 is controlled to start and stop the first water-supply pipe fitting 32. In this embodiment, thefirst solenoid valve 34 is mounted in thefirst outlet 312 of the depressurizingvalve 31. But thefirst solenoid valve 34 can be also mounted at any position of the first water-supply pipe fitting 32. - The
second solenoid valve 35 is controlled to start and stop the second water-supply pipe fitting 33. In this embodiment, thesecond solenoid valve 35 is fixed in thesecond outlet 313 of the depressurizingvalve 31. But thesecond solenoid valve 35 can be also fixed at any position of the second water-supply pipe fitting 33. - The
water pressure sensor 36 is used to sense a water pressure in the depressurizingvalve 31 and to transmit a pressure signal P. - The
control unit 37 is served to receive a flushing signal W started by a user and the pressure signal P from thewater pressure sensor 36, such that after receiving the flushing signal W, a starting and closing sequence and starting times of thefirst solenoid valve 34 and thesecond solenoid valve 35 are controlled based on the pressure signal P. - The flushing signal W is produced after the user starts a mechanical operation, such as touching a switch (such as a handle or a button). In addition, the flushing signal W is produced after a untouch operation, for instance, after the user triggers a sensing device, such as an infrared sensing device.
- The
control unit 37 is any one of a CPU (Central Processing Unit), a MPU (Micro Processing Unit), and a MCU (Micro Control Unit). A DC power supply, such as abattery 38, supplies power to thecontrol unit 37. - The
water pressure sensor 36 is a mechanical sensor or an electronic sensor. - The
control unit 37 determines a first start time T1, a second start time T2, and a third start time T3 according to the pressure signal P received from thewater pressure sensor 36 and starts thefirst solenoid valve 34 for T1 seconds and then closes thefirst solenoid valve 34, thereafter thecontrol unit 37 starts thesecond solenoid valve 35 for T2 seconds and then closes thesecond solenoid valve 35. Finally, thefirst solenoid valve 34 is started by thecontrol unit 37 for T3 seconds and then is closed. - Referring further to
FIG. 4 , to simplify structure and installation, the depressurizingvalve 31, thewater pressure sensor 36, thefirst solenoid valve 34, thesecond solenoid valve 35, and thecontrol unit 37 are installed in acontrolling box 37. - The method of controlling the
flush toilet 20 according to the preferred embodiment of the present invention comprises steps of: - a. receiving the flushing signal W started by the user by ways of the
control unit 37; - b. determining the first start time T1, the second start time T2, and the third start time T3 by using the
control unit 37 based on the water pressure in the depressurizingvalve 31; - c. starting the
first solenoid valve 34 so that theperipheral ring 23 on theflush toilet 20 is flushed by the water for T1 seconds, and then closing thefirst solenoid valve 34 after theperipheral ring 23 is flushed; - d. starting the
second solenoid valve 35 so that thesewage draining conduit 24 is flushed by the water for T2 seconds and then closing thesecond solenoid valve 35 after thesewage draining conduit 24 is flushed; - e. starting the
first solenoid valve 34 again so that theperipheral ring 23 on theflush toilet 20 is flushed by the water for T3 seconds and then thefirst solenoid valve 34 is closed after theperipheral ring 23 is flushed; - f. flashing the steps a, b, c, d and e.
- The flushing signal W is produced after the user starts the mechanical operation, such as touching the switch (such as the handle or the button). In addition, the flushing signal W is produced after the untouch operation, for instance, after the user triggers the sensing device, such as an infrared sensing device.
- The water pressure in the depressurizing
valve 31 is sensed by thewater pressure sensor 36. - The
first solenoid valve 34 is mounted at a predetermined position of the first water-supply pipe fitting 32 which connects with the depressurizingvalve 31, and thefirst solenoid valve 34 is coupled with thefirst flushing channel 21 of theflush toilet 20. Thesecond solenoid valve 35 is fixed at a predetermined position of the second water-supply pipe fitting 33 which joins with the depressurizingvalve 31, and thesecond solenoid valve 35 is in connection with thesecond flushing channel 22 of theflush toilet 20. - Thereby, the system and the method of controlling the flush toilet of the present invention automatically control the starting and closing sequence and the starting times of the
first solenoid valve 34 and thesecond solenoid valve 35 by means of thecontrol unit 37, wherein the starting and closing sequence of thefirst solenoid valve 34 and thesecond solenoid valve 35 is to start and then to close thefirst solenoid valve 34, to start and then to close thesecond solenoid valve 35, and to start and then to close thefirst solenoid valve 34 again. For example, thefirst solenoid valve 34 is started and then is closed so that dirt on theperipheral ring 23 is flushed toward a water seal, and thesecond solenoid valve 35 is started and then is closed so that the dirt and filth on the water seal is flushed toward thesewage draining conduit 24, thereafter thefirst solenoid valve 34 is started again to supply the water toward the water seal. - It is to be noted that the starting times of the
first solenoid valve 34 and thesecond solenoid valve 35 are not overlapped, so the first start time T1, the second start time T2, and the third start time T3 are independent, such that a part of the water is supplied to flush theperipheral ring 23 of thefirst flushing channel 21 or thenozzle 211 in the same time. Accordingly, the water is entirely flushed toward a single flushing conduit, such as thefirst flushing channel 21 or thesecond flushing conduit 22, thus draining the dirt and the filth strongly. - Preferably, the first start time T1, the second start time T2, and the third start time T3 are determined based on the water pressure in the depressurizing
valve 31 sensed by thewater pressure sensor 36, and the pressure signal P is calculated and determined by thecontrol unit 37, such that when the water pressure is low, the starting times of thefirst solenoid valve 34 and thesecond solenoid valve 35 are prolonged. In contrast, when the water pressure is high, the starting times of thefirst solenoid valve 34 and thesecond solenoid valve 35 are shorten. Therefore, as flushing the water toward theperipheral ring 23 of thefirst flushing channel 21 or thesewage draining conduit 24, the water is supplied stably even through thewater supply 40 is at a low pressure or a high pressure. - While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. The scope of the claims should not be limited by the preferred embodiments set forth in the examples, but should be given the broadest interpretation consistent with the description as a whole.
Claims (20)
- A system of controlling a flush toilet (20), which toilet includes a first flushing channel (21) and a second flushing channel (22), the system comprising:a depressurizing valve (31) including an inlet (311), a first outlet (312), and a second outlet (313); the inlet (311) being in use in connection with an inlet pipe fitting (314);a first water-supply pipe fitting (32) employed to supply water from the first outlet (312) of the depressurizing valve (31) toward the first flushing channel (21) of the flush toilet (20);a second water-supply pipe fitting (33) applied to supply the water from the second outlet (313) of the depressurizing valve (31) toward the second flushing channel (22) of the flush toilet (20);a first solenoid valve (34) controlled to start and stop the flushing of the first water-supply pipe fitting (32);a second solenoid valve (35) controlled to start and stop the flushing of the second water-supply pipe fitting (33);a water pressure sensor (36) used to sense a water pressure in the depressurizing valve (31) and to transmit a pressure signal (P);a control unit (37) served to receive a flushing signal (W) started by a user and the pressure signal (P) from the water pressure sensor (36), such that after receiving the flushing signal (W), a starting and closing sequence and starting times of the first solenoid valve (34) and the second solenoid valve (35) are controlled based on the pressure signal (P).
- The system of controlling the flush toilet (20) as claimed in claim 1, characterized in that the control unit (37) receives the flushing signal (W) produced after the user starts a mechanical operation.
- The system of controlling the flush toilet (20) as claimed in claim 2, characterized in that the flushing signal (W) is produced after the user touches a switch.
- The system of controlling the flush toilet (20) as claimed in claim 1, characterized in that the control unit (37) receives the flushing signal (W) produced after a untouch operation.
- The system of controlling the flush toilet (20) as claimed in claim 4, characterized in that the flushing signal (W) is produced after the user triggers a sensing device.
- The system of controlling the flush toilet (20) as claimed in claim 1, characterized in that the control unit (37) is any one of a CPU (Central Processing Unit), a MPU (Micro Processing Unit), and a MCU (Micro Control Unit).
- The system of controlling the flush toilet (20) as claimed in claim 1, characterized in that the water pressure sensor (36) is a mechanical sensor or an electronic sensor.
- The system of controlling the flush toilet (20) as claimed in claim 1, characterized in that the control unit (37) determines a first start time (T1), a second start time (T2) and a third start time (T3) according to the pressure signal (P) received from the water pressure sensor (36) and starts the first solenoid valve (34) for T1 seconds and then closes the first solenoid valve (34), and the control unit (37) starts the second solenoid valve (35) for T2 seconds and then closes the second solenoid valve (35); the first solenoid valve (34) is started by the control unit (37) for T3 seconds and then is closed, wherein first start time (T1), the second start time (T2), and the third start time (T3) of the first solenoid valve (34) and the second solenoid valve (35) are not overlapped.
- The system of controlling the flush toilet (20) as claimed in claim 1 further comprising a DC power supply supplying power to the control unit (37).
- A method of controlling a flush toilet (20) comprising steps of:a. receiving a flushing signal (W) started by a user by ways of a control unit (37);b. determining a first start time (T1), a second start time (T2), and a third start time (T3) by using the control unit (37) based on a water pressure in a depressurizing valve (31);c. starting a first solenoid valve (34) so that a peripheral ring (23) on a flush toilet (20) is flushed by a water for T1 seconds, and then closing the first solenoid valve (34) after the peripheral ring (23) is flushed;d. starting a second solenoid valve (35) so that a sewage draining conduit (24) is flushed by the water for T2 seconds and then closing the second solenoid valve (35) after the sewage draining conduit (24) is flushed;e. starting the first solenoid valve (34) again so that the peripheral ring (23) on the flush toilet (20) is flushed by the water for T3 seconds and then the first solenoid valve (34) is closed after the peripheral ring (23) is flushed;f. flashing the steps a, b, c, d and e.
- The method of controlling the flush toilet (20) as claimed in claim 10, characterized in that the flushing signal (W) is produced after the user starts a mechanical operation.
- The method of controlling the flush toilet (20) as claimed in claim 11, characterized in that the flushing signal (W) is produced after the user touches a switch.
- The method of controlling a flush toilet (20) as claimed in claim 10, characterized in that the flushing signal (W) is produced after a untouch operation.
- The method of controlling the flush toilet (20) as claimed in claim 13, characterized in that the flushing signal (W) is produced after the user triggers a sensing device.
- The method of controlling the flush toilet (20) as claimed in claim 10, characterized in that the control unit (37) is any one of a CPU (Central Processing Unit), a MPU (Micro Processing Unit), and a MCU (Micro Control Unit).
- The method of controlling the flush toilet (20) as claimed in claim 10, characterized in that the water pressure in the depressurizing valve (31) is sensed by a water pressure sensor (36).
- The method of controlling the flush toilet (20) as claimed in claim 10, characterized in that the water pressure sensor (36) is a mechanical sensor or an electronic sensor.
- The method of controlling the flush toilet (20) as claimed in claim 10, characterized in that the first solenoid valve (34) is mounted at a predetermined position of a first water-supply pipe fitting (32) which connects with the depressurizing valve (31), and the first solenoid valve (34) is coupled with a first flushing channel (21) of the flush toilet (20).
- The method of controlling the flush toilet (20) as claimed in claim 10, characterized in that the second solenoid valve (35) is fixed at a predetermined position of a second water-supply pipe fitting (33) which joins with the depressurizing valve (31), and the second solenoid valve (35) is in connection with a second flushing channel (22) of the flush toilet (20).
- The method of controlling the flush toilet (20) as claimed in claim 10, characterized in that a DC power supply supplies power to the control unit (37).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310488757.5A CN104563242A (en) | 2013-10-17 | 2013-10-17 | Toilet bowl control system and method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2862981A1 EP2862981A1 (en) | 2015-04-22 |
EP2862981B1 true EP2862981B1 (en) | 2016-08-17 |
Family
ID=50942561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14171642.3A Not-in-force EP2862981B1 (en) | 2013-10-17 | 2014-06-09 | System and method of controlling a flush toilet |
Country Status (3)
Country | Link |
---|---|
US (1) | US20150107008A1 (en) |
EP (1) | EP2862981B1 (en) |
CN (1) | CN104563242A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108474201B (en) | 2016-01-25 | 2021-03-02 | 科勒公司 | Pipeline pressure driven box-free siphon closestool |
CN107975117B (en) * | 2017-10-27 | 2021-02-12 | 科勒(中国)投资有限公司 | Toilet bowl |
CN109610580B (en) * | 2018-11-02 | 2021-05-25 | 厦门瑞尔特卫浴科技股份有限公司 | Closestool flushing control system |
US11371228B2 (en) | 2018-12-28 | 2022-06-28 | Kohler Co. | Flushing assembly, water supply assembly, lower position water suction assembly, water tank, check valve for use in a toilet, and method, device, and storage medium for controlling toilet water consumption |
CN110106949B (en) * | 2019-05-17 | 2021-06-22 | 上海科勒电子科技有限公司 | Toilet bowl water consumption control method, electronic equipment and storage medium |
EP3674491B1 (en) | 2018-12-28 | 2021-09-01 | Shanghai Kohler Electronics, Ltd. | Water supply assembly of a toilet |
US11299877B2 (en) | 2019-02-28 | 2022-04-12 | Kohler Co. | Fluid connector for toilet |
CN113062423B (en) * | 2021-04-08 | 2022-10-21 | 艾特智能科技(台州)有限公司 | Electromagnetic pressure reducing valve of intelligent closestool |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68910600T2 (en) * | 1988-07-25 | 1994-06-01 | Toto Ltd | Water closet flushing device. |
CN1016630B (en) * | 1988-07-25 | 1992-05-13 | 东陶机器株式会社 | The rinse water supply method and the device of chamber pot |
CA2013434C (en) * | 1989-03-30 | 2000-05-30 | Shinji Shibata | Flush water supply system for toilet stool |
US5052060A (en) * | 1990-03-29 | 1991-10-01 | Toto Ltd. | Flush water supply system for toilet stool |
US5204999A (en) * | 1989-03-30 | 1993-04-27 | Toto Ltd. | Flush water supply system for toilet stool |
EP0415432B1 (en) * | 1989-09-01 | 1993-03-31 | Toto Ltd. | Water closet flushing apparatus |
JP3729273B2 (en) * | 2002-09-25 | 2005-12-21 | 東陶機器株式会社 | Toilet device |
JP5313078B2 (en) * | 2009-08-11 | 2013-10-09 | 株式会社Lixil | Flush toilet |
JP2012041793A (en) * | 2010-08-23 | 2012-03-01 | Lixil Corp | Water closet |
CN201925548U (en) * | 2010-12-24 | 2011-08-10 | 深圳成霖洁具股份有限公司 | Pressure balancing valve |
CN102678994B (en) | 2012-05-17 | 2014-03-05 | 浙江维卫电子洁具有限公司 | Automatic decompression voltage and current stabilizer |
-
2013
- 2013-10-17 CN CN201310488757.5A patent/CN104563242A/en active Pending
-
2014
- 2014-05-14 US US14/277,094 patent/US20150107008A1/en not_active Abandoned
- 2014-06-09 EP EP14171642.3A patent/EP2862981B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
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EP2862981A1 (en) | 2015-04-22 |
US20150107008A1 (en) | 2015-04-23 |
CN104563242A (en) | 2015-04-29 |
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