WO2001090619A1 - Water saving automatic valve - Google Patents
Water saving automatic valve Download PDFInfo
- Publication number
- WO2001090619A1 WO2001090619A1 PCT/KR2001/000871 KR0100871W WO0190619A1 WO 2001090619 A1 WO2001090619 A1 WO 2001090619A1 KR 0100871 W KR0100871 W KR 0100871W WO 0190619 A1 WO0190619 A1 WO 0190619A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- motor
- automatic valve
- screw shafts
- sensor
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/126—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on a rib perpendicular to the fluid line
Definitions
- the present invention relates to a water saving automatic valve, and more particularly to a novel water saving automatic valve which can remarkably reduce amount of electricity consumption and can be operated for a long time by a battery.
- a water saving automatic valve which is provided at a tap or a urinal etc. and can supply or close water automatically comprises a solenoid device opening and closing a water line, and a sensor. Therefore, when a user gets his/her hand near to the tap or the user stands in front of a urinal, the sensor detects this and the solenoid device is operated automatically. Accordingly, after a predetermined amount of water is supplied, the water supply is cut off later.
- the solenoid device is connected to a diaphragm in the housing of the automatic valve and closes a water line, and the water line can be opened and closed by the diaphragm being moved back and forth by the solenoid device.
- the automatic valve uses common voltage of 110V or 220V, there is danger of electric shock as well as a problem that it cannot be used in case of power failure. Accordingly, an automatic valve is required which can operate the solenoid device with a battery even in case of power failure.
- the diaphragm must be pressed by a spring in order that it is not removed by this water pressure. Accordingly, in case of pulling the diaphragm and opening the water line, because electricity must be constantly supplied to the solenoid in order to keep in position against elastic power of the spring while the water line is opened, there is a problem that the automatic valve like this cannot be operated for a long time with a battery having limited amount of voltage.
- the sensor may be a photo sensor, and this photo sensor emits light from its light emitter by electric power, and if the emitted light is reflected by a user, the photo sensor receives this light by its light receptor and detects whether there is an object or not.
- this photo sensor must be supplied with constant electric power in order that its light emitter and light receptor may be operated constantly, as described above, there is a problem that the automatic valve like this cannot be operated for a long time because a battery has limited amount of electric power.
- the invention is intended to resolve the problem described above and so the object of the invention is to provide a water saving automatic valve which can remarkably reduce amount of electricity consumption and can be operated for a long time by a battery.
- a water saving automatic valve which is provided at water pipe and supplies water or blocks water
- a water saving automatic valve comprising a housing 4 which has a water line 2 inside and is connected to the water pipe, a motor 14 which is provided at the housing 4, a battery 20 which is connected to the motor 14 and supplies electric power, a screw shafts 8, 10 which are connected to the motor 14 and reciprocate with rotating, a diaphragm 6 which is connected to the screw shafts 8, 10 at the middle of the water line 2 of the housing 4 and opens or closes the water line 2 according as the screw shafts 8, 10 reciprocate, a sensor 50 which is connected the battery 20 and has a light emitter 50a as well as a light receptor 50b and controls the operation of the motor 14 by detecting approach of a user, and wherein the sensor 50 is operated in a certain pulse section because the light emitter 50a has a pulse generator 51 which is connected to the battery 20 and outputs a pulse and a bias controller 54 which is connected to the pulse generator
- Figure 1 shows the closed state of a water saving automatic valve according to one embodiment of the invention
- Figure 2 shows the opened state of a water saving automatic valve of Figure 1
- FIG. 3 shows a block diagram of the invention
- Figures J and 2 show the water saving automatic valve of the invention and more particularly show one embodiment an automatic valve which is provided at a tap 1.
- the automatic valve comprises a housing 4 which has a water line 2 inside and is comiected to water pipe, a motor 14 which is provided at the housing 4 and operated in connection with a battery 20, a screw shafts 8, 10 which are provided at the housing 4 and moved back and forth as well as a wheel 12 which is combined with the screw shafts 8, 10 and rotated by the motor 14, a diaphragm 6 which is provided at the middle of the water line 2 and connected to the end of the screw shafts 8, 10 to open and close the water line 2, and a sensor 50 which is connected to the motor 14.
- the senor 50 is a light sensor which has a light emitter 50a as well as a light receptor 50b, and the light emitter 50a has a pulse generator 51 which is connected to the battery 20 to output a pulse and a bias controller 54 which is connected to the pulse generator 51 and transmits bias voltage synchronized with the pulse to the light receptor 50b. And, the light emitter 50a and the light receptor 50b are operated only in a certain pulse section.
- the housing 4 is formed with a projection part 22 protruded to the water line 2, and the front side of the diaphragm 6 touches the front end of the projection part 22 and, as a result, the water line 2 is closed.
- This projection part 22 has curving surface 24 at its front and back surface, and because the water flow through the line 2 is changed in direction and generates whirlpool, and as a result, remnant is not piled up in the water line 2.
- the motor 14 is comiected to the wheel 2 with a belt 34 and can rotate the wheel 2 in forward and reverse direction.
- the battery 20 is provided in a battery case 38 at the one side of the housing 4 and can be exchanged with ease.
- the wheel 12 can be connected to the motor with a gear instead of the belt 34.
- the screw shafts 8, 10 include the first shaft 8 and the second shaft 10, and a spring 26 is engaged between the shafts 8, 10. As a result, the shafts 8, 10 can be expanded and contracted.
- the second shaft 10 is provided at a sliding guide 28 of the hosing 4 and moves to and fro, and the first shaft 8 is provided on the same coaxial line of the front end of the second shaft 10, and the diaphragm 6 is connected to the front end of the second shaft 10 in one body.
- a screw part 30 is formed on circumference surface of the first shaft 8, and the wheel 12 is combined with the first shaft 8 by the screw part 30.
- the wheel 12 is rotationally provided at the bracket 32 in the housing 4, and, if the wheel 12 is rotated, the screw shafts 8, 10 are moved back and forth.
- the sensor 50 is a photo sensor provided at a light emitter 50a and a light receptor 50b, and the light emitter 50a has a pulse generator 51 which receives electric power from a battery 20 and outputs pulse, a light emission driver 52 which is connected to the pulse generator 51 and makes the light emission ek-i. -ent 53 driven only in pulse of high level, a light emission element 53 which emits light of wave by the light emission driver 52, and a bias controller 54 which is connected to the pulse generator 51 and outputs a bias voltage synchronized with pulse of the pulse generator 51.
- the light receptor 50b includes a light reception element 55 which receives the light reflected by a user and transforms the light into the corresponding current, a current- voltage transformer 56 which transforms the current outputted from the light reception element 55 into the corresponding voltage and amplifies it, a filter 57 which filters a natural light signal among the signals outputted from the current-voltage transformer 56, and a comparator 58 which compares the voltage generated from the current-voltage transformer 56 with the reference voltage and detects whether there is an object or not.
- the pulse generator 51 receives a direct electric power from the electric power supplier 20 and outputs the pulse whose duty ratio is low. And, the duty ration is preferably 1/50000.
- the light emission driver 52 is operated in order to emit light only in pulse of high level outputted from the pulse generator 51.
- the bias controller 54 generates a bias voltage synchronized with pulse signal of the pulse generator 51 and transmits the bias voltage to the comparator 58.
- the compartor 58 compares the output voltage of the filter 57 with predetermined voltage and generates object detection signal.
- Numeral 59b is an invertor, and this inverts the voltage outputted from the comparator 58.
- Numeral 359a is a delay circuit, and this removes the signal of the invertor 59b generated owing to the time delay of the light reception element 55.
- Numeral 59 is a signal transformer, and this receives the signals outputted from the comparator 58 as well as the delay circuit 59a, and outputs a continuous signal according as whether there is an object or not and so on.
- limit switches 61, 63 operated according as the first screw shaft 8 and the second screw shaft 10 reciprocate are provided in the housing 4. These limit switches 61, 63 are connected to the motor drivers 15a, 15b and control the operation of the motor 14 by detecting whether the valve is opened or closed completely. Therefore, the motor 14 is controlled not to be operated further when the valve is opened or closed completely.
- the sensor 50 detects this and the motor drivers 15a, 15b rotate the motor 14 according to the signal of the sensor 50 and remove the screw shafts 8, 10, and accordingly, the diaphragm 6 is separated from the guidance portion 22 and opens the waterway 2, and, as a result, the water can be exhausted.
- the motor drivers 15a, 15b rotate the motor 14 according to the signal of the sensor 50 and pushes the screw shafts 8, 10, and because the diaphragm 6 is tightly contacted to the top of the projection part 22 and closes the water line 2, the water can be blocked.
- the screw shafts 8, 10 move forwardly and the diaphragm 6 is contacted to the end of the projection part 22, because the spring 26 between the first screw shaft 8 and the second screw shaft 10 cam absorb shock, it can be prevented that the diaphragm 6 is overly pressed to the projection part 22 and is damaged.
- the screw shafts 8, 10 may be self locked with the wheel 12 and the screw shafts 8, 10 don't reciprocate if the wheel 12 is not rotated, it can be prevented that the diaphragm 6 is pushed away.
- Numeral 40 shows a manual switch which a user can supply and block water manually
- numeral 42 shows an alarm lamp notifying that the battery 20 has been discharged.
- the screw shafts 8, 10 are provided at the sliding guide 28 and moved back and forth in accordance with rotation of the wheel 12, according to the embodiment of the invention, the screw shafts 8, 10 may be combined in the housing 4 and the motor 14 may be connected to the screw shafts 8, 10, and this screw shafts 8, 10 may be rotated and moved back and forth in accordance with driving of the motor 14.
- the water saving automata, valve of the invention has the advantage that there is no danger of electric shock and can be used even in case of power failure because it can open and close the waterway 2 by a battery 20.
- the invention has the advantage that, when the water line 2 is completely opened or closed, as the limit switches 61, 63 detect this and keep the water line 2 opened and closed by stopping the motor 14, the electric power is consumed only when the screw shafts 8, 10 are moved back and forth.
- the water saving automatic valve of the invention has the advantage that the consumption of the electric power can be reduced because the sensor 50 is operated only in the high level period of pulse and detects approach of a user. Therefore, the water saving automatic valve has the advantage that it can be operated by a small battery 20 for a long time because little of electric power is consumed.
- the embodiment of the invention illustrates an automatic valve provided at a tap, but this automatic valve, like the automatic valve provided at the urinal, can be applied to all kinds of valves which supplies or blocks water automatically by a sensor 50.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Domestic Plumbing Installations (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/048,299 US6634618B2 (en) | 2000-05-24 | 2001-05-24 | Water saving automatic valve |
AU60748/01A AU6074801A (en) | 2000-05-24 | 2001-05-24 | Water saving automatic valve |
EP01934584A EP1283965A4 (en) | 2000-05-24 | 2001-05-24 | Water saving automatic valve |
JP2001586353A JP2003534472A (en) | 2000-05-24 | 2001-05-24 | Automatic valve for water saving |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000028059A KR100353901B1 (en) | 2000-05-24 | 2000-05-24 | automatic valve |
KR2000/28059 | 2000-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001090619A1 true WO2001090619A1 (en) | 2001-11-29 |
Family
ID=19670028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2001/000871 WO2001090619A1 (en) | 2000-05-24 | 2001-05-24 | Water saving automatic valve |
Country Status (7)
Country | Link |
---|---|
US (1) | US6634618B2 (en) |
EP (1) | EP1283965A4 (en) |
JP (1) | JP2003534472A (en) |
KR (1) | KR100353901B1 (en) |
CN (1) | CN1221751C (en) |
AU (1) | AU6074801A (en) |
WO (1) | WO2001090619A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2498919A (en) * | 2011-11-18 | 2013-08-07 | Production Designs Ltd | Electronic timer faucet |
WO2018039761A1 (en) * | 2016-09-01 | 2018-03-08 | KITAGAWA, Camila Rumi | Device for automatically controlling water flow in taps and the like |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101103209B1 (en) * | 2009-11-21 | 2012-01-05 | 임주혁 | Auto valve easy to sensing of the switching degree |
CN103195959A (en) * | 2013-04-15 | 2013-07-10 | 无锡市崇安区科技创业服务中心 | Faucet |
DE202016001106U1 (en) | 2016-02-22 | 2017-05-23 | Neoperl Gmbh | Valve actuator |
DE102018112372A1 (en) * | 2018-05-23 | 2019-11-28 | Grohe Ag | A diaphragm valve with a threaded spindle |
CN108757991A (en) * | 2018-07-31 | 2018-11-06 | 浙江科博电器有限公司 | A kind of water valve of scale-deposit-preventing |
US10982783B2 (en) | 2018-10-30 | 2021-04-20 | Hamilton Sunstrand Corporation | Variable flow controlled diaphragm valve based on shape memory alloy |
CN109853689A (en) * | 2018-12-26 | 2019-06-07 | 厦门瑞尔特卫浴科技股份有限公司 | A kind of closestool water injection system |
CN113464699B (en) * | 2021-06-24 | 2023-03-28 | 开平市亿展阀芯有限公司 | Anti-blocking time-delay faucet |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4682628A (en) * | 1983-04-13 | 1987-07-28 | Hill Stephen A | Faucet system |
US4971106A (en) * | 1987-09-30 | 1990-11-20 | Toto, Ltd. | Automatically operating valve for regulating water flow and faucet provided with said valve |
US5062164A (en) * | 1989-06-01 | 1991-11-05 | Lee Chang H | Automatic mixing faucet |
KR910009541B1 (en) * | 1989-12-16 | 1991-11-21 | 손승한 | Connector for water-faucet |
US5074520A (en) * | 1988-09-14 | 1991-12-24 | Lee Chang H | Automatic mixing faucet |
KR20000000455A (en) * | 1999-10-25 | 2000-01-15 | 장길용 | automatic valve |
Family Cites Families (12)
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DE2014087C3 (en) * | 1969-04-15 | 1978-08-10 | Lucifer S.A., Carouge, Genf (Schweiz) | Use of a coupling between a valve closure piece and a valve drive element |
DE3731679A1 (en) * | 1987-09-21 | 1989-04-06 | Hansa Metallwerke Ag | Contactlessly controlled sanitary fitting |
EP0312781A1 (en) * | 1987-09-21 | 1989-04-26 | Hansa Metallwerke Ag | Remotely actuated sanitary fittings |
US4953236A (en) * | 1988-09-14 | 1990-09-04 | Lee Chang H | Automatic mixing faucet |
US5086215A (en) * | 1988-10-26 | 1992-02-04 | National Computer Systems, Inc. | Method and apparatus for discriminating or locating bar codes for an optical mark reader |
US4915347A (en) * | 1989-05-18 | 1990-04-10 | Kohler Co. | Solenoid operated faucet |
CH681385A5 (en) * | 1989-11-16 | 1993-03-15 | Karrer Weber & Cie Ag | |
CH680143A5 (en) * | 1989-11-28 | 1992-06-30 | Karrer Weber & Cie Ag | |
DE4125288C2 (en) * | 1991-07-31 | 1995-08-24 | Hansa Metallwerke Ag | Circuit arrangement for the contactless control of a sanitary fitting and method for operating such |
IL105133A0 (en) * | 1993-03-22 | 1993-07-08 | Madgal Glil Yam | Electronically operated faucet including sensing means |
US5699833A (en) * | 1996-03-25 | 1997-12-23 | Tsataros; Eddie J. | Electro-mechanical fluid flow control apparatus |
KR20000009541A (en) | 1998-07-25 | 2000-02-15 | 이종수 | Serial communication device and method thereof |
-
2000
- 2000-05-24 KR KR1020000028059A patent/KR100353901B1/en not_active IP Right Cessation
-
2001
- 2001-05-24 EP EP01934584A patent/EP1283965A4/en not_active Withdrawn
- 2001-05-24 AU AU60748/01A patent/AU6074801A/en not_active Abandoned
- 2001-05-24 CN CNB018013813A patent/CN1221751C/en not_active Expired - Fee Related
- 2001-05-24 JP JP2001586353A patent/JP2003534472A/en active Pending
- 2001-05-24 WO PCT/KR2001/000871 patent/WO2001090619A1/en not_active Application Discontinuation
- 2001-05-24 US US10/048,299 patent/US6634618B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4682628A (en) * | 1983-04-13 | 1987-07-28 | Hill Stephen A | Faucet system |
US4971106A (en) * | 1987-09-30 | 1990-11-20 | Toto, Ltd. | Automatically operating valve for regulating water flow and faucet provided with said valve |
US5074520A (en) * | 1988-09-14 | 1991-12-24 | Lee Chang H | Automatic mixing faucet |
US5062164A (en) * | 1989-06-01 | 1991-11-05 | Lee Chang H | Automatic mixing faucet |
KR910009541B1 (en) * | 1989-12-16 | 1991-11-21 | 손승한 | Connector for water-faucet |
KR20000000455A (en) * | 1999-10-25 | 2000-01-15 | 장길용 | automatic valve |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2498919A (en) * | 2011-11-18 | 2013-08-07 | Production Designs Ltd | Electronic timer faucet |
WO2018039761A1 (en) * | 2016-09-01 | 2018-03-08 | KITAGAWA, Camila Rumi | Device for automatically controlling water flow in taps and the like |
Also Published As
Publication number | Publication date |
---|---|
US20030116737A1 (en) | 2003-06-26 |
JP2003534472A (en) | 2003-11-18 |
CN1380950A (en) | 2002-11-20 |
US6634618B2 (en) | 2003-10-21 |
AU6074801A (en) | 2001-12-03 |
KR20000054152A (en) | 2000-09-05 |
KR100353901B1 (en) | 2002-09-27 |
CN1221751C (en) | 2005-10-05 |
EP1283965A4 (en) | 2003-08-13 |
EP1283965A1 (en) | 2003-02-19 |
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