CN103446891B - Flushable external pressure type ultrafiltration filter core assembly and water purifier - Google Patents

Flushable external pressure type ultrafiltration filter core assembly and water purifier Download PDF

Info

Publication number
CN103446891B
CN103446891B CN201210179717.8A CN201210179717A CN103446891B CN 103446891 B CN103446891 B CN 103446891B CN 201210179717 A CN201210179717 A CN 201210179717A CN 103446891 B CN103446891 B CN 103446891B
Authority
CN
China
Prior art keywords
water
filter core
end cap
end socket
external pressure
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.)
Expired - Fee Related
Application number
CN201210179717.8A
Other languages
Chinese (zh)
Other versions
CN103446891A (en
Inventor
刘赢群
王彤
杨勇
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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 Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201210179717.8A priority Critical patent/CN103446891B/en
Publication of CN103446891A publication Critical patent/CN103446891A/en
Application granted granted Critical
Publication of CN103446891B publication Critical patent/CN103446891B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses a kind of Flushable external pressure type ultrafiltration filter core assembly, comprise filter housing and be placed in the filter core in this filter housing, one end of filter housing is water inlet end, the other end is water side, the water inlet end of filter housing is provided with former water general import, water purification general export and blowdown general export is provided with in the water side of filter housing, filter core comprises the water purifying chamber be formed in filter housing and the hollow fiber film yarn be placed in this water purifying chamber, the wall of water purifying chamber is provided with the original water inlet be communicated with former water general import, the pure water inlet be communicated with water purification general export and the waste be communicated with blowdown general export, the mouth of pipe of hollow fiber film yarn one end is closed, the other end mouth of pipe is communicated with pure water inlet, filter core is arranged in filter housing rotationally.Flushable external pressure type ultrafiltration filter core assembly provided by the present invention, developing result is good, effectively can increase total water purification amount.Meanwhile, the invention also discloses a kind of water purifier using above-mentioned Flushable external pressure type ultrafiltration filter core assembly.

Description

Flushable external pressure type ultrafiltration filter core assembly and water purifier
Technical field
The present invention relates to water treatment facilities, particularly relate to a kind of Flushable external pressure type ultrafiltration filter core assembly, and use the water purifier of this Flushable external pressure type ultrafiltration filter core assembly.
Background technology
Current ultra-filtration element divides inner pressed and external-compression type two kinds.Inner pressed ultra-filtration element has flushable structure, can repeatedly rinse, long service life; But the easy spalling of inner pressed ultra-filtration element, safe drinking water can not get sufficient guarantee.The danger that external-compression type ultra-filtration element does not have film silk to rupture, but do not possess flushable structure, or need to add recoil valve, adds and automatically controlledly just can to rinse, and only need water pressure enough during milipore filter work, power up and seem very burdensome.
The country such as the more American-European Japan and Korea S of water quality of China is poor, impurities in water more than Japan and other countries about 30%, and milipore filter has easy polluting property, minimizing sharply in service life under poor water quality environment.Ultra-filtration element standard water amount is 2t (current technology), and experiment at present and actual use are generally about 1.5t, when water quality is severe from the beginning less than 1t.
At present, washable filter element effectively can increase total water purification amount, extends filter element life, avoid frequent more renew cartridge, reduce consumer's use cost, but washable filter element developing result is not very desirable at present.
Summary of the invention
For above-mentioned prior art present situation, first technical problem to be solved by this invention is, provides the Flushable external pressure type ultrafiltration filter core assembly that a kind of developing result is good, to increase total water purification amount.
Second technical problem to be solved by this invention is, provides a kind of water purifier using above-mentioned Flushable external pressure type ultrafiltration filter core assembly.
The present invention solves the technical scheme that above-mentioned first technical problem adopt: a kind of Flushable external pressure type ultrafiltration filter core assembly, comprise filter housing and be placed in the filter core in this filter housing, one end of described filter housing is water inlet end, the other end is water side, the water inlet end of filter housing is provided with former water general import, water purification general export and blowdown general export is provided with in the water side of filter housing, described filter core comprises the water purifying chamber be formed in described filter housing and the hollow fiber film yarn be placed in this water purifying chamber, the wall of described water purifying chamber is provided with the original water inlet be communicated with described former water general import, the pure water inlet be communicated with described water purification general export and the waste be communicated with described blowdown general export, the mouth of pipe of described hollow fiber film yarn one end is closed, the other end mouth of pipe is communicated with described pure water inlet, described filter core is arranged in described filter housing rotationally.
Wherein in an embodiment, described filter housing comprises the cylindrical shell of both ends open and is separately positioned on the first end cap and second end cap at these cylindrical shell two ends, cover at described first end and be provided with described former water general import, described second end cap is provided with water purification general export and blowdown general export, and described filter core is supported on described first end cap and described second end cap rotationally by rotating shaft.
Wherein in an embodiment, described first end cap and described second end cap difference pivot bush unit are in the two ends of described cylindrical shell, and at described first end cap, be provided with seal member between described second end cap and described cylindrical shell two ends, the first end socket and the second end socket is sealedly connected with respectively in described cylindrical shell two ends, described water purifying chamber is formed by described cylinder inboard wall, described first end socket and described second end socket, and described original water inlet is provided with on described first end socket, described second end socket is provided with described pure water inlet and described waste.
Wherein in an embodiment, in the described cylindrical shell of described second end cap side, dividing plate is provided with at described second end socket, chamber between described second end socket and described second end cap is divided into the water-purifying cavity near described second end socket and the soil chamber near described second end cap by this dividing plate, described pure water inlet is communicated with described water-purifying cavity with described water purification general export, and described waste is communicated with described soil chamber with described blowdown general export.
Wherein in an embodiment, described rotating shaft is through described filter core, its two ends are supported in described former water general import and described water purification general export respectively, and are provided with in described rotating shaft for being communicated with described former water general import and described original water inlet and/or the intake tunnel of described water purifying chamber and the exhalant canal for being communicated with described water-purifying cavity and described water purification general export.
Wherein in an embodiment, described intake tunnel comprises and is positioned at first centre bore of described second end socket near described first end cap side, the second apopore on the first apopore on described first center hole wall between described first end socket and described first end cap and the described first center hole wall between described first end socket and described second end socket, described exhalant canal comprises in the inlet opening of described second end socket on the second centre bore of described second end cap side and the described second center hole wall between described second end socket and described dividing plate, described first centre bore and described second centre bore disconnect mutually.
Wherein in an embodiment, at described first end cap, between described second end cap and described cylindrical shell two ends, be provided with ball.
Wherein in an embodiment, the first top circumference of the described rotating shaft between described first end socket and described first end cap being provided with at least two oblique layouts revolves drawstring, one end that this first top revolves drawstring is fixed on described first end socket, and the other end is fixed on described first end and covers; And/or the second top circumference of described rotating shaft between described second end socket and described second end cap being provided with at least two oblique layouts revolves drawstring, one end that this second top revolves drawstring is fixed on described second end socket, and the other end is fixed on described second end cap.
Wherein in an embodiment, the described cylinder inboard wall in described water purifying chamber is circumferentially provided with at least one projection.
The present invention solves the technical scheme that above-mentioned second technical problem adopt: a kind of water purifier, and it comprises at least one Flushable external pressure type ultrafiltration filter core assembly described in above-mentioned any one embodiment.
Compared with prior art, Flushable external pressure type ultrafiltration filter core assembly provided by the present invention, because filter core can rotate, when needs rinse, filter core is rotated, and the turbulent water in such filter chamber will be very violent, by the pollutant sucking-off on film silk, be rinsed current to take away, reach the object of flushing.Because filth-discharging effect is good, the water inventory of crossing of filter core can be made to approach 2t, and reduce consumer's use cost, the popularization for water purifier can play positive role.
Accompanying drawing explanation
Fig. 1 is the perspective view of the Flushable external pressure type ultrafiltration filter core assembly in one of them embodiment of the present invention;
Fig. 2 is the detonation configuration schematic diagram of the assembly of Flushable external pressure type ultrafiltration filter core shown in Fig. 1;
Fig. 3 is the sectional structure schematic diagram of the assembly of Flushable external pressure type ultrafiltration filter core shown in Fig. 1;
Fig. 4 is the sectional structure schematic diagram of the cylindrical shell of the assembly of Flushable external pressure type ultrafiltration filter core shown in Fig. 1.
Above in each figure, 100-filter housing, 110-cylindrical shell, 111-projection, 120-first end cap, the former water general import of 121-, 130-second end cap, 131-water purification general export, 132-blowdown general export, 200-filter core, 210-first end socket, 211-original water inlet, 220-second end socket, 221-pure water inlet, 222-waste, 230-hollow fiber film yarn, 240-rotating shaft, 241-first centre bore, 242-first apopore, 243-second apopore, 244-second centre bore, 245-inlet opening, 250-water purifying chamber, 300-dividing plate, 310-water-purifying cavity, 320-soil chamber, 400-seal member, 500-ball, 600-first top revolves drawstring, 700-second top revolves drawstring.
Detailed description of the invention
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
In one of them embodiment of the present invention, a kind of Flushable external pressure type ultrafiltration filter core assembly is provided, see Fig. 1 to Fig. 3, Flushable external pressure type ultrafiltration filter core assembly forms primarily of filter housing 100 and filter core 200, one end of described filter housing 100 is water inlet end, the other end is water side, and the water inlet end of filter housing 100 is provided with former water general import 121, is provided with water purification general export 131 and blowdown general export 132 in the water side of filter housing 100.Described filter core 200 is arranged in described filter housing 100 rotationally, it comprises the water purifying chamber 250 be formed in described filter housing 100 and the hollow fiber film yarn 230 be placed in this water purifying chamber 250, the waste 222 wall of described water purifying chamber 250 being provided with the original water inlet 211 be communicated with described former water general import 121, the pure water inlet 221 be communicated with described water purification general export 131 and being communicated with described blowdown general export 132, the mouth of pipe of described hollow fiber film yarn 230 one end is closed, and the other end mouth of pipe is communicated with described pure water inlet 221.
The Flushable external pressure type ultrafiltration filter core assembly that the embodiment of the present invention provides, because filter core 200 can rotate, when needs rinse, filter core 200 is rotated, and the turbulent water in such filter chamber will be very violent, by the pollutant sucking-off on film silk, be rinsed current to take away, reach the object of flushing.Because filth-discharging effect is good, the water inventory of crossing of filter core 200 can be made to approach 2t, and reduce consumer's use cost, the popularization for water purifier can play positive role.
Preferably, described filter housing 100 comprises the cylindrical shell 110 of both ends open and is separately positioned on first end cap 120 and second end cap 130 at these cylindrical shell 110 two ends, described first end cap 120 is provided with described former water general import 121, described second end cap 130 is provided with water purification general export 131 and blowdown general export 132.
Preferred further, described first end cap 120 and described second end cap 130 respectively pivot bush unit in the two ends of described cylindrical shell 110, and at described first end cap 120, be provided with seal member 400 and ball 500 between described second end cap 130 and described cylindrical shell 110 two ends.The first end socket 210 and the second end socket 220 is sealedly connected with respectively in described cylindrical shell 110 two ends, described water purifying chamber 250 is formed by described cylindrical shell 110 inwall, described first end socket 210 and described second end socket 220, and described original water inlet 211 is provided with on described first end socket 210, described second end socket 220 is provided with described pure water inlet 221 and described waste 222.Like this, get final product rotating cylinder 110 with hand, thus drive filter core 200 to rotate, without the need to arranging drive unit in addition.
Preferably, described filter core 200 is supported on described first end cap 120 and described second end cap 130 rotationally by rotating shaft 240.Preferred further, simplify to make structure, described rotating shaft 240 is through described filter core 200, its two ends are supported in described former water general import 121 and described water purification general export 131 respectively, and are provided with in described rotating shaft 240 for being communicated with described former water general import 121 and described original water inlet 211 and the intake tunnel of described water purifying chamber 250 and the exhalant canal for being communicated with described pure water inlet 221 and described water purification general export 131.Like this, without the need to offering the axis hole coordinated with rotating shaft 240 in addition on described first end cap 120 and described second end cap 130.
If filter core 200 rotates toward a direction always, developing result is still bad.Preferably, the first top circumference of the described rotating shaft 240 between described first end socket 210 and described first end cap 120 being provided with at least two oblique layouts revolves drawstring 600, one end that this first top revolves drawstring 600 is fixed on described first end socket 210, and the other end is fixed on described first end cap 120; The second top circumference of the described rotating shaft 240 between described second end socket 220 and described second end cap 130 being provided with at least two oblique layouts revolves drawstring 700, one end that this second top revolves drawstring 700 is fixed on described second end socket 220, and the other end is fixed on described second end cap 130.After adopting this kind of structure, filter core 200 rotates clockwise → rotates counterclockwise under the first top revolves drawstring 600 and the second top revolves the effect of drawstring 700 → rotates clockwise ... ... reciprocating rotation, the turbulent water of filter core 200 inside is more violent, and clean effect is better.
Preferred further, see Fig. 4, described cylindrical shell 110 inwall in described water purifying chamber 250 is circumferentially provided with at least one projection 111.Under the compound disturbance of projection 111, make current form violent whirlpool, by pollutant sucking-off, improve developing result.
See Fig. 3, preferred further, in the described cylindrical shell 110 of described second end cap 130 side, dividing plate 300 is provided with at described second end socket 220, chamber between described second end socket 220 and described second end cap 130 is divided into the water-purifying cavity 310 near described second end socket 220 and the soil chamber 320 near described second end cap 130 by this dividing plate 300, described water-purifying cavity 310 is communicated with described exhalant canal with described pure water inlet 221, and described soil chamber 320 is communicated with described blowdown general export 132 with described waste 222.The water purification that filter core 200 is made is collected in water-purifying cavity 310, is discharged by water purification general export 131, and the wastewater collection produced during filter core 200 blowdown, in soil chamber 320, is flowed out by blowdown general export 132.The Main Function of soil chamber 320 is that sewage is focused on a place, so, water purification and sewage are separated, the distance of hollow fiber film yarn and pollutant increases simultaneously, hollow fiber film yarn, away from pollutant, reduces the risk that hollow fiber film yarn is polluted in pollutant backflow again.
Preferred further, intake tunnel in described rotating shaft comprises and is positioned at first centre bore 241 of described second end socket 220 near described first end cap 120 side, the second apopore 243 on the first apopore 242 on described first centre bore 241 wall between described first end socket 210 and described first end cap 120 and described first centre bore 241 wall between described first end socket 210 and described second end socket 220, described exhalant canal comprises and is arranged on the inlet opening 245 of described second end socket 220 on the second centre bore 244 of described second end cap 130 side and described second centre bore 244 wall between described second end socket 220 and described dividing plate 300, described first centre bore 241 and described second centre bore 244 disconnect mutually.During flushing, it is indoor that running water pours filter core 200 from the original water inlet 211 of the first end socket 210 and the second apopore 243, constantly washes away hollow fiber film yarn 230 outer wall, therefore can reach the effect of good filter cartridge flushing 200.
Preferably, be mechanical switch in described flush switch.Whole like this Flushable external pressure type ultrafiltration filter core assembly does not need to power up the work of getting final product.
In another embodiment of the present invention, provide a kind of water purifier, it comprises the described Flushable external pressure type ultrafiltration filter core assembly of above-described embodiment.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (9)

1. a Flushable external pressure type ultrafiltration filter core assembly, comprise filter housing and be placed in the filter core in this filter housing, one end of described filter housing is water inlet end, the other end is water side, the water inlet end of filter housing is provided with former water general import, water purification general export and blowdown general export is provided with in the water side of filter housing, described filter core comprises the water purifying chamber be formed in described filter housing and the hollow fiber film yarn be placed in this water purifying chamber, the wall of described water purifying chamber is provided with the original water inlet be communicated with described former water general import, the pure water inlet be communicated with described water purification general export and the waste be communicated with described blowdown general export, the mouth of pipe of described hollow fiber film yarn one end is closed, the other end mouth of pipe is communicated with described pure water inlet, it is characterized in that, described filter core is arranged in described filter housing rotationally, described filter housing comprises the cylindrical shell of both ends open and is actively socketed on the first end cap and second end cap at these cylindrical shell two ends respectively, cover at described first end and be provided with described former water general import, described second end cap is provided with water purification general export and blowdown general export, and described filter core is supported on described first end cap and described second end cap rotationally by rotating shaft.
2. Flushable external pressure type ultrafiltration filter core assembly according to claim 1, it is characterized in that, at described first end cap, between described second end cap and described cylindrical shell two ends, be provided with seal member, the first end socket and the second end socket is sealedly connected with respectively in described cylindrical shell two ends, described water purifying chamber is formed by described cylinder inboard wall, described first end socket and described second end socket, and described original water inlet is provided with on described first end socket, described second end socket is provided with described pure water inlet and described waste.
3. Flushable external pressure type ultrafiltration filter core assembly according to claim 2, it is characterized in that, in the described cylindrical shell of described second end cap side, dividing plate is provided with at described second end socket, chamber between described second end socket and described second end cap is divided into the water-purifying cavity near described second end socket and the soil chamber near described second end cap by this dividing plate, described pure water inlet is communicated with described water-purifying cavity with described water purification general export, and described waste is communicated with described soil chamber with described blowdown general export.
4. Flushable external pressure type ultrafiltration filter core assembly according to claim 3, it is characterized in that, described rotating shaft is through described filter core, its two ends are supported in described former water general import and described water purification general export respectively, and are provided with in described rotating shaft for being communicated with described former water general import and described original water inlet and/or the intake tunnel of described water purifying chamber and the exhalant canal for being communicated with described water-purifying cavity and described water purification general export.
5. Flushable external pressure type ultrafiltration filter core assembly according to claim 4, it is characterized in that, described intake tunnel comprises and is positioned at first centre bore of described second end socket near described first end cap side, the second apopore on the first apopore on described first center hole wall between described first end socket and described first end cap and the described first center hole wall between described first end socket and described second end socket, described exhalant canal comprises in the inlet opening of described second end socket on the second centre bore of described second end cap side and the described second center hole wall between described second end socket and described dividing plate, described first centre bore and described second centre bore disconnect mutually.
6. the Flushable external pressure type ultrafiltration filter core assembly according to any one of claim 2 to 5, is characterized in that, at described first end cap, is provided with ball between described second end cap and described cylindrical shell two ends.
7. the Flushable external pressure type ultrafiltration filter core assembly according to any one of claim 2 to 5, it is characterized in that, the first top circumference of the described rotating shaft between described first end socket and described first end cap being provided with at least two oblique layouts revolves drawstring, one end that this first top revolves drawstring is fixed on described first end socket, and the other end is fixed on described first end and covers; And/or the second top circumference of described rotating shaft between described second end socket and described second end cap being provided with at least two oblique layouts revolves drawstring, one end that this second top revolves drawstring is fixed on described second end socket, and the other end is fixed on described second end cap.
8. the Flushable external pressure type ultrafiltration filter core assembly according to any one of claim 2 to 5, is characterized in that, the described cylinder inboard wall in described water purifying chamber is circumferentially provided with at least one projection.
9. a water purifier, is characterized in that: comprise at least one Flushable external pressure type ultrafiltration filter core assembly as claimed in any of claims 1 to 8 in one of claims.
CN201210179717.8A 2012-06-01 2012-06-01 Flushable external pressure type ultrafiltration filter core assembly and water purifier Expired - Fee Related CN103446891B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210179717.8A CN103446891B (en) 2012-06-01 2012-06-01 Flushable external pressure type ultrafiltration filter core assembly and water purifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210179717.8A CN103446891B (en) 2012-06-01 2012-06-01 Flushable external pressure type ultrafiltration filter core assembly and water purifier

Publications (2)

Publication Number Publication Date
CN103446891A CN103446891A (en) 2013-12-18
CN103446891B true CN103446891B (en) 2015-11-18

Family

ID=49729972

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210179717.8A Expired - Fee Related CN103446891B (en) 2012-06-01 2012-06-01 Flushable external pressure type ultrafiltration filter core assembly and water purifier

Country Status (1)

Country Link
CN (1) CN103446891B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7175578B2 (en) * 2018-05-07 2022-11-21 ダイセン・メンブレン・システムズ株式会社 External pressure type hollow fiber membrane module
CN108993155A (en) * 2018-07-20 2018-12-14 芜湖新瑟安智能科技有限公司 A kind of membrane separation device
CN110743214B (en) * 2019-10-22 2021-07-30 王永强 Self-purification type filtering device
CN115140805B (en) * 2022-06-20 2023-09-15 宁波方太厨具有限公司 Filter element structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2797349Y (en) * 2005-06-10 2006-07-19 叶建荣 Special water purifier for drinking water apparatus
CN101422698A (en) * 2008-11-06 2009-05-06 姚玉章 Hollow fiber ultrafiltration micro-filtration membrane module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2797349Y (en) * 2005-06-10 2006-07-19 叶建荣 Special water purifier for drinking water apparatus
CN101422698A (en) * 2008-11-06 2009-05-06 姚玉章 Hollow fiber ultrafiltration micro-filtration membrane module

Also Published As

Publication number Publication date
CN103446891A (en) 2013-12-18

Similar Documents

Publication Publication Date Title
CN103446887B (en) Flushable external pressure type ultrafiltration filter core assembly and water purifier
CN103446891B (en) Flushable external pressure type ultrafiltration filter core assembly and water purifier
CN204952410U (en) Leading filter and cleaning device with self -cleaning function
CN103463983B (en) Flushable external pressure type ultrafiltration filter core assembly and water purifier
CN205549756U (en) Leading filter of impeller drive blowdown formula
CN103446890B (en) Flushable external pressure type ultrafiltration filter core assembly, its purging method and water purifier
CN105126415A (en) Prefilter with self-cleaning function and cleaning device of prefilter
CN103463980B (en) Flushable external pressure type ultrafiltration filter core assembly and water purifier
CN205504082U (en) Multi -functional clean water tap device of hydroelectric power generation
CN202569960U (en) Flushable external pressure ultrafiltration filter element assembly and water purifier
CN201529432U (en) Security filter
CN202569963U (en) Washable external-pressure type ultrafiltration filter element assembly and water purifier
CN203678093U (en) Water purifier for a water tap
CN208032333U (en) A kind of reverse osmosis water purifier
CN205760127U (en) A kind of pipeline-type water purifier being conveniently replaceable filter element
CN106704617A (en) Ceramic valve element water nozzle
CN205473032U (en) Water purifier of convenient clearance
CN103446889B (en) Flushable external pressure type ultrafiltration filter core assembly and water purifier
CN103446888B (en) Flushable external pressure type ultrafiltration filter core assembly and water purifier
CN204841147U (en) Rivers of horizontal filter core tap water purifier switch structure
CN202569961U (en) Washable external-press type ultra-filtration filter core assembly and water purifier
CN202621030U (en) Cleanable external-pressure type ultrafiltration filter cartridge component and water purifier
CN103446886B (en) Flushable external pressure type ultrafiltration filter core assembly and water purifier
CN202621029U (en) Cleanable external-pressure type ultrafiltration filter cartridge component and water purifier
CN201454418U (en) Ultrafiltration and reverse osmosis household water purifier

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151118