CN105399234A - Multifunctional household water purifier - Google Patents

Multifunctional household water purifier Download PDF

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Publication number
CN105399234A
CN105399234A CN201510952076.9A CN201510952076A CN105399234A CN 105399234 A CN105399234 A CN 105399234A CN 201510952076 A CN201510952076 A CN 201510952076A CN 105399234 A CN105399234 A CN 105399234A
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CN
China
Prior art keywords
water
valve
hot
multifunctional household
water tank
Prior art date
Application number
CN201510952076.9A
Other languages
Chinese (zh)
Inventor
於柏章
Original Assignee
宁波市美之净环保科技有限公司
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 宁波市美之净环保科技有限公司 filed Critical 宁波市美之净环保科技有限公司
Priority to CN201510952076.9A priority Critical patent/CN105399234A/en
Publication of CN105399234A publication Critical patent/CN105399234A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

Abstract

The invention relates to a multifunctional household water purifier. The multifunctional household water purifier comprises a double-check valve arranged on a water inlet pipe, four filter elements used for purifying water delivered through the double-check valve successively, a water tank arranged at the end terminal of a fourth filter element and connected with the water tank via a pipeline, a humidifier connected with the water tank, and a thermal insulating liner connected with a water outlet end of the water tank via a one-way valve; the four filter elements are used for purifying; the water tank and the humidifier are used for humidifying; the thermal insulating liner is used for heating; water feeding, purifying, humidifying, heating, and water discharging of the multifunctional household water purifier are concentratedly controlled by a circuit board; and the ports of the circuit board are connected with the thermal insulating liner and a plurality of control valves respectively. The multifunctional household water purifier can be used for purifying, heating, and humidifying at the same time; and a unified control manner is adopted, so that the multifunctional household water purifier is convenient to control.

Description

A kind of Multifunctional household water purifier
Technical field
The present invention relates to water-purifying machine field, particularly relate to a kind of Multifunctional household water purifier with heating, humidification, ultra-violet sterilization.
Background technology
In prior art, water-purifying machine and heater are generally the split type installation of stand-alone type, and water-purifying machine installs one, and heater installs one, and humidifier installs one, and water-purifying machine is installed loaded down with trivial details; Water power cannot be separated, and more renew cartridge is inconvenient, does not have sterilizing function.
China Patent Publication No. 103157325A, disclose a kind of household water-purifying machine, comprise upper bottle body, the lower bottle body be connected with upper bottle body, the top center of upper bottle body is provided with water-in, and upper bottle body bottom centre is provided with limbers, lower bottle body bottom centre is provided with water outlet, the built-in filtration unit of lower bottle body, the water inlet of filtration unit and the limbers of upper bottle body are closely socketed, the inside of filtration unit be multilayered structure and every one deck for removably connecting.
Above-mentioned household water-purifying machine only has single water purification function, and water power is not separated.
In view of above-mentioned defect, creator of the present invention obtains this creation finally through long research and practice.
Summary of the invention
The object of the present invention is to provide a kind of Multifunctional household water purifier, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the invention provides a kind of Multifunctional household water purifier, it is comprised be arranged on suction culvert two and cuts valve, to four filter cores purified successively from two water cutting valve process, is arranged on the 4th filter core end and the humidifier be connected with water tank by the water tank that pipeline is connected with the 4th filter core, and the hot courage be connected by check valve with the water side of water tank;
Wherein, four described filter cores complete scavenging process; Described water tank and humidifier complete humidification; Described hot courage completes heat-processed;
The water inlet of described water-purifying machine, purification, humidification, heating and water outlet are by circuit card centralized Control, and each port of circuit card is connected with hot courage, various control valve respectively;
Described water-purifying machine adopts the structure of separate type, and it comprises the protecgulum, mesochite and the bonnet that connect combination successively, arranges four filter cores and faucet in protecgulum, and water flows out from machine front; At the in-built electrical part of bonnet, water route and circuit are separated by mesochite.
Further, after ultra-violet sterilization, flow out normal-temperature water in the water side of described water tank, the pipeline flowed out is provided with normal temperature outlet valve; Arrange hot water effluent's valve in the water side of hot courage, the normal-temperature water after disinfection flows out through hot water effluent's valve through the hot water of normal temperature outlet valve, hot courage heating water.
Further, cut valve and is connected by combination flush valve with two in the water side of one of them filter core of described four filter cores, the condensed water warp pair after purification is cut valve and is entered in tank.
Further, four described filter cores are followed successively by: first step PP cotton filter core, second stage extruded activated carbon filter core, third stage RO reverse osmosis membrane, fourth stage post active carbon filter core.
Further, described second stage extruded activated carbon filter core with the pipeline of third stage RO reverse osmosis membrane is provided with the low-tension switch entering water electromagnetic valve and topping-up pump that are connected with water tank, enter in water tank after supercharging and twice filtration.
Further, described circuit card is connected with hot water effluent's valve, normal temperature outlet valve, entering water electromagnetic valve and topping-up pump, washing combined valve, and controller break-make.
Further, described circuit card is connected with hot courage by switch, and the Heating temperature of hot courage is controlled by two temperature controllers, respectively 85 DEG C of temperature regulators and 95 DEG C of temperature regulators; Two temperature regulators are also connected with transformer.
Further, the both sides, front and back of described mesochite are provided with cavity, and front side cavity arranges four filter cores, are provided with water tank, hot courage and automatically controlled part in rear side cavity.
Further, the side of the mesochite between described second stage extruded activated carbon filter core and third stage RO reverse osmosis membrane is provided with display panel, sets out water nozzle, be provided with water spilage tray accordingly on the downside of faucet in this side.
Further, the top of the rear side cavity before described mesochite and bonnet is provided with water tank, is provided with topping-up pump, combination flush valve, entering water electromagnetic valve, hot water effluent's valve, normal temperature outlet valve in the downside of rear side cavity; Between hot water effluent's valve and normal temperature outlet valve, be provided with hot courage, hot water effluent's valve is connected directly between on hot courage; On the downside of water tank, be connected with normal temperature outlet valve, and be provided with intake-outlet on the inner side-wall of rear side cavity.
Compared with prior art beneficial effect of the present invention is: Multifunctional household water purifier of the present invention integrates purification, heating, humidification, can provide purification, heating and the function of humidification simultaneously, and adopts the unified mode controlled, and conveniently controls.
Further, the structure that water-purifying machine adopts front and rear covers to be connected with mesochite, electricity separation formula designs, and avoid mutual interference, internal structure is compact.
The present invention also adopts plug-in filter core, external power supply, two water outlet, water outlet in the middle of front, can wall hanging and desk-top placement, install convenient, facilitate.
The present invention adopts four filter cores, and filter respectively and adopt ultra-violet sterilization, decontamination effect improving is better.
The present invention adopts double replacement type to intake, the design of row's condensed water, by the condensed water after having filtered by the road and two valve of cutting be back in tank and collect use, realize water-saving function.
Accompanying drawing explanation
Fig. 1 is the water route schematic diagram of Multifunctional household water purifier of the present invention;
Fig. 2 is the control texture schematic diagram of Multifunctional household water purifier of the present invention;
Fig. 3 is the first perspective view of Multifunctional household water purifier of the present invention;
Fig. 4 is the second perspective view of Multifunctional household water purifier of the present invention;
Fig. 5 is the condensed water recovery structure schematic diagram of Multifunctional household water purifier of the present invention.
Embodiment
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Refer to shown in Fig. 1, it is the water route schematic diagram of Multifunctional household water purifier of the present invention, the household water-purifying machine of the embodiment of the present invention can realize purification, heating, humidification simultaneously, it is comprised be arranged on suction culvert two and cuts valve 21, to four filter cores purified successively from two water cutting valve 21 process, is arranged on the 4th filter core end and the humidifier 1 be connected with water tank 2 by the water tank 2 that pipeline is connected with the 4th filter core, and the hot courage 5 be connected by check valve 3 with the water side of water tank 2.
After ultra-violet sterilization, flow out normal-temperature water in the water side of water tank 2, the pipeline flowed out is provided with normal temperature outlet valve 42; Arrange hot water effluent's valve 41 in the water side of hot courage 5, the normal-temperature water after disinfection flows out to water tap, through water discharge of water faucet through the hot water of normal temperature outlet valve 42, hot courage heating water through hot water effluent's valve 41.
In the water side of one of them filter core of described four filter cores by combination flush valve 8 with pair cut valve 21 and be connected, condensed water warp pair after rough purification is cut valve 21 and is entered in tank 23, water in tank 23 again cuts valve 21 by two by water tap 22 together with tap water, and secondary to scavenging process, heating and humidification.
In the present embodiment, water cuts valve 21 and four filter cores being connected complete scavenging process through two; And the output terminal of a filter core is wherein back to two cuts valve 21, completes the second stage employ of filtered wastewater.
Water after filtering and purifying enters water tank 2, and completes humidification by the humidifier 1 be connected with water tank 2, and humidifier goes out fog by after the water atomization inside water tank from machine top.Further, the water in water tank flows out normal-temperature water through normal temperature outlet valve 42.
Water in water tank flows in hot courage 5, and by adding thermogenesis hot water, completes heat-processed; Further, the water in hot courage 5 flows out hot water through hot water effluent's valve 41.
In embodiments of the present invention, four filter cores are followed successively by:
The cotton filter core 14 of first step PP, it effectively removes the impurity of the large volume such as suspended substance, silt, pipeline iron rust, red worm, colloid in tap water;
Second stage extruded activated carbon filter core 13, it effectively can remove the objectionable impurities such as disinfection byproduct (DBP), heterochromatic peculiar smell, part heavy metal in larger molecular organics in water, chlorine residue, tap water;
Third stage RO reverse osmosis membrane 12, it utilizes polymer reverse osmosis technology, pore size filter 0.0001 micron, the objectionable impurities such as organism, microorganism, chemical residue, heavy metal, bacterium, virus in effective filtering water;
Fourth stage post active carbon filter core 11, it adsorbs heterochromatic, peculiar smell residual in water purification further, and adjustment water quality mouthfeel, guarantees that water quality is pure, comfortable taste.
Water after purification enters water tank, and water outlet adopts solenoid control.
In the present embodiment, the condensed water after filtration is back in tank 23 by combination flush valve 8 by the output terminal of third stage RO reverse osmosis membrane 12; Another road water is by fourth stage post active carbon filter core 11.
In the present embodiment, second stage extruded activated carbon filter core 13 is provided with on the pipeline of third stage RO reverse osmosis membrane 12 low-tension switch 9, entering water electromagnetic valve 6 and the topping-up pump 7 that are connected with water tank 2, enters in water tank 2 after supercharging and twice filtration.
Shown in Fig. 2, in the present embodiment, the water inlet of water-purifying machine, purification, humidification, heating and water outlet are by circuit card 56 centralized Control; Being connected with humidifier and ultra-violet sterilization equipment at the port of circuit card 56, carrying out humidification and sterilization to purifying waste water.
Also be connected with display panel 10 at the port of circuit card 56, the relevant informations such as the temperature of display water, and display panel 10 is by the control of connected touch switch.
Described circuit card 56 is also connected with leakage protecting valve and low-tension switch 9, and when pipeline leaks and line pressure is too low, circuit card 56 obtains this information and carries out respective handling.
Described circuit card 56 is connected with hot courage 5 by switch, and the Heating temperature of hot courage is controlled by two temperature controllers, and one is 85 DEG C of temperature regulators, and one is 95 DEG C of temperature regulators; Two temperature regulators are also connected with transformer; On circuit card 56, be also connected with water level sensor simultaneously, water level responded to and reacts.
Described circuit card 56 is also connected with power switch, the heating of hot courage 5 is controlled.
Described circuit card 56 is also connected with hot water effluent's valve 41, normal temperature outlet valve 42, entering water electromagnetic valve 6 and topping-up pump 7, washing combined valve 8, and controller break-make.
Whole water-purifying machine major control is completed by switchboard, and when opening water tap, water enters water-purifying machine, and water-purifying machine is started working, and when water level in water tank rises to water level float switching control points, water-purifying machine purification part is shut down and rinsed RO part; At this moment can heat water in hot courage, open heater switch heating, opening normal-temperature water effluent switch can go out normal-temperature water, opens humidification switch and starts to heat; Start working when water level decreasing in water tank divides to machine purification portion during water level float switching control points; Water outlet adopts solenoid control.
Entering water electromagnetic valve 6 controls tap water and enters filter element filtering, closes entering water electromagnetic valve 6, cut off the water supply during shutdown, and when preventing machine down, in water tank, water overflows water tank.
Combination flush valve 8 controls the flushing to RO film, carries out 18s flushing when the machine is switched on to RO film, discharges air in machine simultaneously, and when machine water tank detects that water is full, flush valve is opened and carried out 5s flushing to RO film, extends RO work-ing life.The complete rear Self-shut electromagnetic valve of each flushing.
Press the cold and hot touch switch of machine, machine water outlet; Complete machine adopts circuit card to control, and two touch switches control cold and hot water water outlet, and a power switch controls general supply, a humidification on-off control humidifier.
Water-purifying machine of the present invention, by circuit card centralized Control, ensures that the various functions of water-purifying machine can unified allocation of resources.
Shown in Fig. 3, the water-purifying machine of the embodiment of the present invention adopts the structure of separate type, it comprises the protecgulum 52, mesochite 53 and the bonnet 54 that connect combination successively, the cotton filter core 14 of first step PP that four filter cores are respectively above-mentioned is equiped with on the top, space of protecgulum and mesochite, second stage extruded activated carbon filter core 13, third stage RO reverse osmosis membrane 12, fourth stage post active carbon filter core 11.
The side of the mesochite 53 between described second stage extruded activated carbon filter core 13 and third stage RO reverse osmosis membrane 12 is provided with display panel 10, sets out water nozzle 31, be provided with water spilage tray 55 accordingly on the downside of faucet 31 in this side.In the present embodiment, faucet 31 is arranged on the side of hot courage 5 and stretches out forward, collects waste water, and between faucet 31 and water spilage tray 55, leave the space of placing water receiving equipment by the water spilage tray 55 of downside.
The edge section of protecgulum 52 is toughened glass 51, also can adopt other material.
In embodiments of the present invention, the both sides, front and back of mesochite 53 are provided with cavity, and front side cavity arranges four filter cores, are provided with water tank 2, hot courage 5 and automatically controlled part in rear side cavity.
Shown in Fig. 4, in embodiments of the present invention, the top of the rear side cavity before mesochite 53 with bonnet 54 is provided with water tank 2, is provided with topping-up pump 7, combination flush valve 8, entering water electromagnetic valve 6, hot water effluent's valve 41, normal temperature outlet valve 42 in the downside of rear side cavity; Between hot water effluent's valve 41 and normal temperature outlet valve 42, be provided with hot courage 5, hot water effluent's valve 41 is connected directly between on hot courage 5; On the downside of water tank 2, be connected with normal temperature outlet valve 42, and be provided with intake-outlet 50 on the inner side-wall of rear side cavity, by connecting pipeline, hot water or cold water are discharged.
Described circuit card 56 is arranged on the downside of water tank.
In embodiments of the present invention, only fill filter core and faucet in protecgulum, water flows out from machine front; At the in-built electrical part of bonnet, water power is separated completely, and water route and circuit are separated by mesochite and realize water route and be separated; Avoid mutual disturbing influence, the stability of machine system is high.
Shown in Fig. 5, in embodiments of the present invention, water-purifying machine water inlet pipe is installed and is cut valve 21 by two, and two valve 21 of cutting is connected with intake-outlet 50; Head 62 is cut valve 21 by pipe connecting 61 be connected with two from the beginning, and two valve 21 of cutting is connected with intake-outlet 50 by water inlet pipe 64, and transfers in water-purifying machine by tap water; Intake-outlet 50 is cut valve 21 by rising pipe 63 be connected with two, and the condensed water after filtering is transmitted back to by water-purifying machine twoly cuts valve 21, and two valve 21 of cutting is connected with tank 23, and condensed water finally transfers in tank 23 by two valve 21 of cutting.
In common RO type filtration procedure, condensed water is directly discharged by drainage pipeline, the machine adopts double replacement type Inlet and outlet water mode, and pure water is by the tap water outlet of machine own, and condensed water cuts outflow through two, because two cutting is contained in above sink faucet, so condensed water directly can access tank do other with removing.The machine has good water-saving performance.
Above-mentioned detailed description is illustrating for one of them possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of technical solution of the present invention.

Claims (10)

1. a Multifunctional household water purifier, it is characterized in that, it is comprised be arranged on suction culvert two and cuts valve, to four filter cores purified successively from two water cutting valve process, is arranged on the 4th filter core end and the humidifier be connected with water tank by the water tank that pipeline is connected with the 4th filter core, and the hot courage be connected by check valve with the water side of water tank;
Wherein, four described filter cores complete scavenging process; Described water tank and humidifier complete humidification; Described hot courage completes heat-processed;
The water inlet of described water-purifying machine, purification, humidification, heating and water outlet are by circuit card centralized Control, and each port of circuit card is connected with hot courage, various control valve respectively;
Described water-purifying machine adopts the structure of separate type, and it comprises the protecgulum, mesochite and the bonnet that connect combination successively, arranges four filter cores and faucet in protecgulum, and water flows out from machine front; At the in-built electrical part of bonnet, water route and circuit are separated by mesochite.
2. Multifunctional household water purifier according to claim 1, is characterized in that, flows out normal-temperature water in the water side of described water tank after ultra-violet sterilization, and the pipeline flowed out is provided with normal temperature outlet valve; Arrange hot water effluent's valve in the water side of hot courage, the normal-temperature water after disinfection flows out through hot water effluent's valve through the hot water of normal temperature outlet valve, hot courage heating water.
3. Multifunctional household water purifier according to claim 1, is characterized in that, cut valve and is connected by combination flush valve with two in the water side of one of them filter core of described four filter cores, the condensed water warp pair after purification is cut valve and entered in tank.
4. Multifunctional household water purifier according to claim 1, is characterized in that, four described filter cores are followed successively by: first step PP cotton filter core, second stage extruded activated carbon filter core, third stage RO reverse osmosis membrane, fourth stage post active carbon filter core.
5. Multifunctional household water purifier according to claim 4, it is characterized in that, described second stage extruded activated carbon filter core with the pipeline of third stage RO reverse osmosis membrane is provided with the low-tension switch entering water electromagnetic valve and topping-up pump that are connected with water tank, enter in water tank after supercharging and twice filtration.
6. Multifunctional household water purifier according to claim 1, is characterized in that, described circuit card is connected with hot water effluent's valve, normal temperature outlet valve, entering water electromagnetic valve and topping-up pump, washing combined valve, and controller break-make.
7. Multifunctional household water purifier according to claim 6, is characterized in that, described circuit card is connected with hot courage by switch, and the Heating temperature of hot courage is controlled by two temperature controllers, respectively 85 DEG C of temperature regulators and 95 DEG C of temperature regulators; Two temperature regulators are also connected with transformer.
8. Multifunctional household water purifier according to claim 1, is characterized in that, the both sides, front and back of described mesochite are provided with cavity, and front side cavity arranges four filter cores, is provided with water tank, hot courage and automatically controlled part in rear side cavity.
9. Multifunctional household water purifier according to claim 8, it is characterized in that, the side of the mesochite between described second stage extruded activated carbon filter core and third stage RO reverse osmosis membrane is provided with display panel, sets out water nozzle, be provided with water spilage tray accordingly on the downside of faucet in this side.
10. Multifunctional household water purifier according to claim 8, it is characterized in that, the top of the rear side cavity before described mesochite and bonnet is provided with water tank, is provided with topping-up pump, combination flush valve, entering water electromagnetic valve, hot water effluent's valve, normal temperature outlet valve in the downside of rear side cavity; Between hot water effluent's valve and normal temperature outlet valve, be provided with hot courage, hot water effluent's valve is connected directly between on hot courage; On the downside of water tank, be connected with normal temperature outlet valve, and be provided with intake-outlet on the inner side-wall of rear side cavity.
CN201510952076.9A 2015-12-21 2015-12-21 Multifunctional household water purifier CN105399234A (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776616A (en) * 2016-04-28 2016-07-20 佛山市顺德区美的饮水机制造有限公司 Water purifier
CN106830472A (en) * 2017-02-27 2017-06-13 宁波市美之净环保科技有限公司 A kind of energy-saving outdoor integral type drinking device
CN106901603A (en) * 2017-02-27 2017-06-30 宁波市美之净环保科技有限公司 A kind of pair of spray nozzle type energy-saving outdoor integral type drinking device
CN107411559A (en) * 2017-04-26 2017-12-01 宁波市美之净环保科技有限公司 A kind of intelligent integrated drinking-water system based on display platform
CN107459189A (en) * 2017-09-15 2017-12-12 刘国庆 Water supply network terminal Water quality processing system

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CN102674610A (en) * 2012-05-15 2012-09-19 佛山市顺德区腾盟电器有限公司 Multifunctional cosmetic instrument
CN205442909U (en) * 2015-12-18 2016-08-10 宁波市美之净环保科技有限公司 Domestic purifier of water conservation formula

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CN102674610A (en) * 2012-05-15 2012-09-19 佛山市顺德区腾盟电器有限公司 Multifunctional cosmetic instrument
CN205442909U (en) * 2015-12-18 2016-08-10 宁波市美之净环保科技有限公司 Domestic purifier of water conservation formula

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776616A (en) * 2016-04-28 2016-07-20 佛山市顺德区美的饮水机制造有限公司 Water purifier
CN105776616B (en) * 2016-04-28 2019-03-22 佛山市顺德区美的饮水机制造有限公司 Purifier
CN106830472A (en) * 2017-02-27 2017-06-13 宁波市美之净环保科技有限公司 A kind of energy-saving outdoor integral type drinking device
CN106901603A (en) * 2017-02-27 2017-06-30 宁波市美之净环保科技有限公司 A kind of pair of spray nozzle type energy-saving outdoor integral type drinking device
CN107411559A (en) * 2017-04-26 2017-12-01 宁波市美之净环保科技有限公司 A kind of intelligent integrated drinking-water system based on display platform
CN107459189A (en) * 2017-09-15 2017-12-12 刘国庆 Water supply network terminal Water quality processing system

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