EP3158299A1 - Dispositif de dosage pour un ensemble de fermeture automatique - Google Patents

Dispositif de dosage pour un ensemble de fermeture automatique

Info

Publication number
EP3158299A1
EP3158299A1 EP15741725.4A EP15741725A EP3158299A1 EP 3158299 A1 EP3158299 A1 EP 3158299A1 EP 15741725 A EP15741725 A EP 15741725A EP 3158299 A1 EP3158299 A1 EP 3158299A1
Authority
EP
European Patent Office
Prior art keywords
assembly
auto
shut
water
shaft
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Withdrawn
Application number
EP15741725.4A
Other languages
German (de)
English (en)
Inventor
Anil HANKARE
Vasanthan Mani
Suresh Kumar Natarajan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP3158299A1 publication Critical patent/EP3158299A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/001—Means for regulating or setting the meter for a predetermined quantity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/005—Valves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/36—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with stationary measuring chambers having constant volume during measurement
    • G01F3/38—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with stationary measuring chambers having constant volume during measurement having only one measuring chamber
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/44—Time
    • C02F2209/445—Filter life
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/007—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring the level variations of storage tanks relative to the time

Definitions

  • a metering device for an auto-shut off assembly Field of the invention
  • the present invention relates to a metering device for an auto-shut off assembly to meter the volume of liquid collected in a chamber.
  • the present invention relates to a metering device for an auto-shut off assembly that is capable of metering volume of water passed through and also determining the end of life of a filter in a water purifier and causing auto shut-off after the calibrated life of the filter is over.
  • the life of the filter is dependent on the number of liters of water passed thorugh the same and recording the literage will enable determining the life of the filter.
  • it will be highly beneficial to have an auto-shut off mechanism. This will ensure that no impure water is consumed by the consumer.
  • US4698164 discloses a filtering apparatus including a fluid monitoring head and a replaceable filter cartridge removably fastened to said head.
  • the cartridge includes a shut off mechanism for interrupting fluid flow through the cartridge when a predetermined quantity of fluid has been treated by the filter.
  • the fluid monitoring head is releasably coupled to the shutoff mechanism when the filter is installed.
  • the shutoff mechanism includes a valve element threadedly carried by a shaft that forms part of a driven member, operatively connected to a drive member forming part of the monitoring head. As the driven member rotates, the valve element is gradually unthreaded until it separates and is driven to a flow interrupting position by a biasing spring.
  • US5928504 (Recovery Engineering, 1999), discloses a faucet-mounted water treatment device including a flow totalizer and an end-of-life indicator cooperating with the totalizer to tell the user when it is necessary to replace the filter cartridge. End-of-life indication is provided by a valve which stops flow after a predetermined volume has been filtered and by a rotating screen which shows the amount of useful life remaining in the filter cartridge.
  • US5873995 discloses an end-of-life indicator comprising a housing having a chamber therein and attachable to the water treatment device, a diaphragm disposed within the chamber, a rotatable cap having indicia disposed thereon adapted to cooperate with the housing, a spring device for rotating the cap with respect to the housing, an escapement device for regulating the rotational displacement of the cap and means for resetting the cap to a start position.
  • the chamber is arranged for the ingress of water into the water treatment device to pressurize the chamber and the egress of water from the water treatment device to depressurize the chamber, the ingress and egress of water defining one fill cycle.
  • EP1 138235 discloses a electric appliance with a removable cartridge for treating water with an indicating unit that gives indication that the cartridge needs changing when the movable part reaches a predetermined position.
  • This also functions on a float, rachet and pawl assembly mechanism but only has an indicator means to show when the cartridge needs replacement which can possibly be ignored by a user and does not have an auto-shut off mechanism that prevents the user from consuming unpurified water that can flow even after the end of life of the filter cartridge is reached.
  • W09615994 discloses a water treatment having a purifying cartridge with an end of life mechanism.
  • the apparatus comprises a housing with at least one opening for the passage of liquid to a chamber, formed by the interior of the housing and the water treatment unit.
  • the chamber includes a support member mounted to the housing.
  • a float is rotationally mounted on the support member. The support member limits float movement to a predetermined distance upon each rotation of the float, resulting from each cycle (use) of the water treatment unit.
  • the float Once the float has made a specific number of rotations and has travelled the complete distance of the support member (as water fills and drains from the chamber), the float rests in a position where it is visible through the opening for the passage of liquid to a chamber in the housing, indicative of the end of life of the water treatment unit.
  • W09615994 discloses a water flow restriction mechanism but that does not stop the flow of water completely when end of life is reached. This device determines the flow of unpurified water rather than purified water and there will be other problems depending on the quality of water. The end of life indicator will be visible only after the pre-fixed volume of water has flow through and it is not possible to provide a pre-warning of the reaching of the end-of-life.
  • the present inventors have been able to design a metering device for an auto-shut off assembly which is capable of stopping the flow of water after a pre-determined volume of water has collected in a chamber under continuous use. It has also been possible to design a metering device for an auto-shut off assembly which is capable of stopping the flow of water after a pre-determined volume of water has been filtered through a filter.
  • the present inventors have been able to design a metering device for an auto-shut off assembly which is capable of measuring volume of water and stopping the flow of water when end of life of the filter is reached.
  • the system is a purely mechanical system and runs without electricity and only uses a float principle.
  • the system can measure volume of water flown and also provide an auto shut off even when the device is not in the path of flow of water.
  • the device is particularly capable of accurate metering of the volume of water collected in a chamber even when the flow rate of water into the chamber is extremely low. Summary of the invention
  • a metering device for an auto-shut off assembly comprising:
  • pawls (5) are mounted on the pinion (3) that engages with the rachet (4) that is fixed on the shaft (6) such that rotational movement of the pinion is transferred to the shaft (6) in one rotational direction only;
  • a gravity fed water purification device comprising
  • a top chamber for receiving water to be purified and a bottom storage chamber for collecting purified water;
  • a filter which is in fluid communication between the top and bottom storage chamber
  • a metering device for an auto-shut off assembly as claimed in claim 1 and wherein the float of the metering device for an auto-shut off assembly is positioned in the bottom storage chamber.
  • the invention relates to a metering device for an auto-shut off assembly that is capable of metering the volume of water and also capable of bringing about an auto-shutoff of the of the source of water that gets dispensed into the storage chamber.
  • the metering device for an auto-shut off assembly basically comprises:
  • the float is positioned in a water storage chamber and is in contact with the water during the metering period. It is preferred that the float is as close as possible to the floor of the water storage chamber and more preferably in contact with the floor so that the float preferably comes in contact with water even after the first collection of the water in the storage chamber.
  • the float preferably is made of materials selected from acrylonitrile butadiene styrene, high impact polystyrene, general purpose polystyrene, polypropylene copolymer, poly propylene, Poly carbonate, polyethylene, polyoxymethylene or any other suitable material.
  • the float and the rack preferably have a vertical reciprocating movement in the storage chamber as the water level alters in the storage chamber.
  • the pitch of the rack is preferably varied depending on the size of the water purifier and the pitch is preferably determined by the volume of water to be metered.
  • the rack and pinion is made of preferably materials selected from acrylonitrile butadiene styrene, poly carbonate, polyoxymethylene, nylon or any other suitable material.
  • the metering device for an auto-shutoff assembly preferably comprises a gear train between the shaft and the screw that causes the linear movement of the actuator.
  • the gear train preferably comprises at least one spur gear or a bevel gear assembly and in a preferred embodiment it is possible to have both spur gear and bevel gear assemblies.
  • the first gear of the bevel gear assembly is preferably fixed on the first shaft and the second gear of the bevel gear assembly is fixed to the screw. It is preferable that the first gear and second gear of the bevel gear assembly are in engagement at 90 degrees to each other.
  • the gear train When the gear train is provided and preferably comprises at least one spur gear assembly a second shaft that is parallel to the first shaft is provided.
  • the first spur gear is preferably fixed on the proximal end of the first shaft to enable its engagement with a second spur gear fixed on the second shaft that is parallel to the first shaft.
  • the bevel gear assembly is provided preferably to convert the linear movement of the actuator into a vertical movement.
  • the gears may be made from any suitable material and preferably is made of materials selected from acrylonitrile butadiene styrene, poly carbonate, polyoxymethylene, nylon.
  • the pitch of the screw has a direct correlation with the travel of the actuator.
  • the travel of the actuator is decided by the pitch of the screw.
  • the positive movement of the float-rack causes the rotation of the screw, higher the pitch of the screw the corresponding linear travel of the actuator is less.
  • the overall travel of the actuator can preferably be altered by increasing or decreasing the pitch of the screw. It is preferable to attach a dial on the actuator which moves on a linear scale with markings to show litres of water collected in the storage chamber.
  • the screw and actuator may be made of any suitable material and preferably are made of acrylonitrile butadiene styrene, poly carbonate, polyoxymethylene, nylon.
  • Auto shut off mechanism :
  • the Auto shut off is preferably triggered after the desired volume of water has been metered and can be achieved by suitably designing the mechanism. It is preferable to use the linear motion of the actuator to shut off the source of water that gets dispensed into the storage chamber and more preferably close the inlet of the storage chamber. It is preferable that based on this mechanism the auto shutoff can be achieved by several configurations.
  • a preferable auto shutoff mechanism is to use the linear motion of the actuator to trip a spring loaded shut off valve that closes the source of water that gets dispensed into the storage chamber and more preferably closes the inlet of the storage chamber.
  • the spring is compressed and is kept under tension in a housing during the normal flow of water.
  • On the extreme end of the spring a gasket is mounted. As the metering device nears the preset volume, the linear motion of the actuator triggers the tripping of the spring. As the tension from the spring is released, it comes back to its original position shutting the inlet by the gasket and thereby causing the closure of the inlet of the storage chamber.
  • the auto shut off assembly mounts in such a way that the actuator can cause the gasket to close the inlet of the storage chamber.
  • the gasket can close the water exiting from the filter media or entering in the filtering media or the inlet of the storage chamber which is in fluid communication with the filter media.
  • Another preferable auto shutoff mechanism is to provide a flexible diaphragm that can be activated by a moving pin enclosed in a housing. As the actuator moves linearly, it comes in contact with the pin and pushes it linearly. This movement of the pin causes the diaphragm to choke the inlet and thus stop the flow of water into the storage chamber.
  • the diaphragm can close the water exiting from the filter media or entering in the filtering media or the inlet of the storage chamber which is in fluid communication with the filter media.
  • the metering device for an auto-shut off assembly is preferably connected to a water purifier provided with a filter and storage chamber to collect the purified water, it is preferable to use any of the auto shut off mechanism mentioned above or any other suitably designed mechanisms. It is preferable to have a mechanism where the linear motion of the actuator is used to shut off the flow of water into either the inlet or the outlet of the filter.
  • a gravity fed water purification device comprising
  • a top chamber for receiving water to be purified and a bottom storage chamber for collecting purified water;
  • a metering device for an auto-shut off assembly as claimed in claim 1 and wherein the float of the metering device for an auto-shut off assembly is positioned in the bottom storage chamber.
  • a method of determining the volume of water collected in a storage chamber of a water purification device as defined above comprising: i. calibrating the metering device for an auto-shut off assembly as claimed in claim 1 to correspond to the life of the filter means;
  • the metering device for an auto shut-off assembly of the present invention is suitable for use in a gravity fed water purification device. It is preferable that the float is positioned in a bottom storage chamber and is in contact with the water during the metering period. It is preferred that the float is as close as possible to the floor of the bottom storage chamber and more preferably in contact with the floor so that the float preferably comes in contact with water even after the first collection of the water in the bottom storage chamber.
  • the filter is preferably a microbiological interception unit capable of removal of microbiological impurities from water.
  • microbiological interception unit is preferably a separation based filter or controlled dosage based chemical purifier.
  • Figure 1 Front view of the metering device for an auto-shut off assembly.
  • Figure 2 Front view of another embodiment of the metering device for an auto-shut off assembly.
  • Figure 3 Front view of yet another embodiment of the metering device for an auto-shut off assembly.
  • Figure 1 shows the front view of the metering device for an auto-shut off assembly that can be designed for a calibrated volume of water passed through the device and can be positioned along with a water storage chamber so as to determine the volume of water collected in the storage chamber. It also can ensure auto shutoff of the source of water that gets dispensed into the storage chamber. It is essential that the float is always in contact with the water in the storage chamber during the metering period.
  • the storage chamber is preferably connected to a water purifier and holds the water that is preferably purified by the water purifier.
  • Float (1 ) is attached to the proximal end of the rack (2) and is in contact with the water in a storage chamber during the metering period.
  • the pinion (3) and the ratchet (4) are coaxially mounted on the proximal end of a shaft (6) and the distal end of the shaft (6) is connected to a screw (7) and an actuator (8) with internal threads that match the threads of the screw.
  • Figure 2 shows the front view of another embodiment of the metering device for an auto- shut off assembly.
  • At least one spur gear assembly is attached to the metering device for an auto-shut off assembly as shown in figure 1 and this enables designing of the metering device for a higher volume of water but using the same dimensions of the rest of the parts of the device.
  • Float (1 ) is attached to the proximal end of the rack (2) and is in contact with the water in a storage chamber.
  • the pinion (3) and the ratchet (4) are coaxially mounted on the proximal end of a shaft (6).
  • a spur gear assembly (9) is provided and the first spur gear (9a) is fixed on the proximal end of the first shaft (6) that engages with a second spur gear (9b) fixed to a second shaft (10) that is parallel to the first shaft (6).
  • the other end of the shaft (10) is connected to a screw (7) and an actuator (8).
  • Figure 3 shows the front view of yet another embodiment of the metering device for an auto-shut off assembly.
  • At least one bevel gear assembly (1 1 ) is attached and this enables the actuator (8) to move in a vertical direction but using the same dimensions of the rest of the parts of the device.
  • Float (1 ) is attached to the proximal end of the rack (2) and is in contact with the water in a storage chamber.
  • the pinion (3) and the ratchet (4) are coaxially mounted on the proximal end of a shaft (6).
  • the first bevel gear (11 a) is fixed on the proximal end of the first shaft (6).
  • Bevel gear (1 1 a) engages with another bevel gear (1 1 b) in such a way that their axis of rotation is at 90 degrees to each other.
  • the other end of the bevel gear (11 b) is connected to a screw (7) and an actuator (8).
  • the metering device as shown in Figure 3 was attached to a gravity fed water purifier which comprised of a top chamber to receive impure water to be purified and a bottom storage chamber to receive purified water and between the top and bottom storage chamber a cartridge comprising a chemical purifying agent was positioned.
  • the cartridge comprised of an arm which was capable of closing the outlet to the cartridge which leads to the inlet to the bottom storage chamber.
  • the metering device was positioned ensuring that the float of the metering device was in the bottom storage chamber of the water purifier.
  • the metering device was calibrated to trigger auto shut off after 1000 litres of water was passed through the purifier.
  • the shaft unscrewed the screw and effecting the forward movement of the actuator. This forward motion of the actuator pushed the arm of the cartridge to close the inlet to the storage chamber and prevented any further flow of water into the storage chamber.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Measuring Volume Flow (AREA)

Abstract

La présente invention porte sur un dispositif de dosage pour un ensemble de fermeture automatique pour doser le volume de liquide collecté dans une chambre et qui est apte à déterminer la fin de vie d'un filtre, et provoque une fermeture automatique après la durée de vie calibrée du filtre. La présente invention est particulièrement utile dans des purificateurs d'eau. Le dispositif de dosage comprend un flotteur, un ensemble de crémaillère et de pignon, un ensemble de rochet et de cliquet, et une vis avec un actionneur.
EP15741725.4A 2014-06-20 2015-06-19 Dispositif de dosage pour un ensemble de fermeture automatique Withdrawn EP3158299A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14173224 2014-06-20
PCT/EP2015/001245 WO2015192968A1 (fr) 2014-06-20 2015-06-19 Dispositif de dosage pour un ensemble de fermeture automatique

Publications (1)

Publication Number Publication Date
EP3158299A1 true EP3158299A1 (fr) 2017-04-26

Family

ID=50979583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15741725.4A Withdrawn EP3158299A1 (fr) 2014-06-20 2015-06-19 Dispositif de dosage pour un ensemble de fermeture automatique

Country Status (7)

Country Link
EP (1) EP3158299A1 (fr)
CN (1) CN106458640A (fr)
BR (1) BR112016029257A2 (fr)
EA (1) EA201790050A1 (fr)
MX (1) MX2016016535A (fr)
PH (1) PH12016502451A1 (fr)
WO (1) WO2015192968A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018104036A1 (fr) 2016-12-09 2018-06-14 Unilever N.V. Appareil de mesure pour un ensemble à arrêt automatique
CN108844877A (zh) * 2018-05-04 2018-11-20 科勒(中国)投资有限公司 一种基于过滤组件寿命的数据检测方法及装置
CN109405908B (zh) * 2018-09-06 2020-04-07 昆明理工大学 一种同时计量热水和凉水水表
CN111981191B (zh) * 2020-09-01 2024-09-13 浙江零排城乡规划发展有限公司 一种数显计量界面阀
CN113623451B (zh) * 2021-07-06 2024-09-24 西南石油大学 一种高压闸阀手自一体执行机构
CN115779559B (zh) * 2022-12-12 2024-02-02 江苏凯进生态建设有限公司 一种综合废水处理装置及处理方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698164A (en) * 1985-07-29 1987-10-06 Kinetico, Inc. Filter apparatus
US5527451A (en) * 1994-03-08 1996-06-18 Recovery Engineering, Inc. Water treatment device with volume totalization valve
US5536394A (en) 1994-11-17 1996-07-16 Recovery Engineering, Inc. End of life mechanism for water treatment cartridge
US5873995A (en) 1997-05-06 1999-02-23 The Clorox Company End-of-life indicator for water treatment device
FR2806897B1 (fr) 2000-03-29 2003-05-30 Moulinex Sa Appareil electromenager comportant une cartouche amovible de traitement d'eau
CN2429515Y (zh) * 2000-07-11 2001-05-09 唐建星 矿化净水器
CN2446920Y (zh) * 2000-10-16 2001-09-12 高国珊 饮水机净水器的出水开关
CN2524038Y (zh) * 2002-01-27 2002-12-04 冯亨宁 自动控制水阀
CN2791407Y (zh) * 2004-11-26 2006-06-28 北京迪威尔石油天然气技术开发有限公司 直角旋塞式浮球液位控制阀
CN201811840U (zh) * 2010-09-17 2011-04-27 北京工业大学 小模数齿轮误差的单面啮合测量装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015192968A1 *

Also Published As

Publication number Publication date
BR112016029257A2 (pt) 2017-08-22
EA201790050A1 (ru) 2017-04-28
MX2016016535A (es) 2017-05-01
PH12016502451A1 (en) 2017-03-06
WO2015192968A1 (fr) 2015-12-23
CN106458640A (zh) 2017-02-22

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