CN107185288A - A kind of cleaning part of filter element of water purifier - Google Patents
A kind of cleaning part of filter element of water purifier Download PDFInfo
- Publication number
- CN107185288A CN107185288A CN201710467877.5A CN201710467877A CN107185288A CN 107185288 A CN107185288 A CN 107185288A CN 201710467877 A CN201710467877 A CN 201710467877A CN 107185288 A CN107185288 A CN 107185288A
- Authority
- CN
- China
- Prior art keywords
- pipe
- filter membrane
- shell
- water
- filter
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims abstract description 11
- 238000000746 purification Methods 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 10
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000001914 filtration Methods 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000008213 purified water Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- 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
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of cleaning part of filter element of water purifier, including inner core and shell, the inner core is installed inside the housing by fixed support, inner loop interlayer is formed by support bracket fastened support between inner core and shell, the inner core includes filter membrane and inner conduit, the filter membrane is fixedly mounted on inner conduit outer surface, filter layer is equipped between filter membrane and inner conduit, the inner loop interlayer two ends are connected to water inlet pipe and blow-off pipe, described filter membrane one end is installed with conversion port, pure water inlet pipe and backflushing water intake pipe are connected with the conversion port, the water inlet pipe, blow-off pipe, valve is installed with water purification outlet pipe and backflushing water intake pipe, the purpose of cleaning cartridge surface impurity is reached by high pressure back flush, can be with quick and convenient, effectively carry out high-frequency filter core flushing.
Description
Technical field
The present invention relates to water purifier technical field, specially a kind of cleaning part of filter element of water purifier.
Background technology
Filtering suction-operated of the water purifier to running water essentially consists in the mud in its filter core, filter element of water purifier energy filter water
The materials such as sand, iron rust, algae, but in actual use, the impurity in water easily blocks filter core, so filter element of water purifier
Need periodically to be cleaned.Filter core in water purifier is often integrally fixed inside, and in order to improve closure, often adopts
Assembled, and so may result in practical operation with totally-enclosed property, filter core is cleaned and just seemed very
Trouble and inconvenience, according to sanitary standard, need periodically to carry out the flushing and replacing of filter core, in order to protect according to different material for core
Safe drinking water is demonstrate,proved, the washing time of filter core is very frequently.
Existing filter element cleaning part Main Basiss be using external connection power effect under to filter core carry out friction cleaning, and
This process, what it was only applicable is for the filter core with fixed profile structure, such as water purification with ceramic element structure
A kind of cleaning part for filter element of water purifier that device, such as Application No. 200520045025.X are announced, uses oilstone emery stick and pottery
Porcelain cartridge surface is directly contacted, and adjusts the contact surface and contact angle between oilstone emery stick and ceramic element by elastomer
Degree so that both can fit together completely, the adsorbate adsorbed on ceramic element surface is cleaned up, prolong so as to reach
The service life of long filter core.Although, also can be to filter core but this cleaning way can understand the adsorbate of cartridge surface
Certain abrasion is caused on surface, and then influences actual service life.
The content of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of cleaning part of filter element of water purifier, can be effective
The problem of solving in background technology.
The technical solution adopted for the present invention to solve the technical problems is：A kind of cleaning part of filter element of water purifier, including it is interior
Core and shell, the inner core are installed inside the housing by fixed support, pass through support bracket fastened branch between inner core and shell
Support forms inner loop interlayer, and the inner core includes filter membrane and inner conduit, and the filter membrane is fixedly mounted on inner conduit
Outer surface, is equipped with filter layer between filter membrane and inner conduit, and the inner loop interlayer two ends are connected into water
Pipe and blow-off pipe, described filter membrane one end be installed with conversion port, the conversion port be connected with pure water inlet pipe and
Valve is installed with backflushing water intake pipe, the water inlet pipe, blow-off pipe, water purification outlet pipe and backflushing water intake pipe.
As a kind of preferred technical scheme of the present invention, inner core and the shell two ends are flushed, and are carried out by end cap
Closing connection, the end cap is stepped and is fixed by screw thread with cage connection.
As a kind of preferred technical scheme of the present invention, the inner surface of outer cover is installed with deflector, described to lead
Flow plate with shell oblique, and deflector tendency blow-off pipe is pointed to by water inlet pipe.
As a kind of preferred technical scheme of the present invention, the support bracket fastened quantity is two, and two fixed supports
It is respectively provided at shell two ends, the fixed support is arranged in dual slope, and is installed with fixed support outer surface suction
Tag.
As a kind of preferred technical scheme of the present invention, the filter membrane is ceramic structure filter core, and filter membrane is in cylinder
Shape, the filter membrane also directly is connected to form fixed support structure with fixed support.
Fixed and connected by sealing ring as a kind of preferred technical scheme of the present invention, between the conversion port and filter membrane
Connect, and connectivity port is respectively equipped with T fonts on conversion port, the water purification outlet pipe and backflushing water intake pipe are respectively with being connected
Port is connected.
As a kind of preferred technical scheme of the present invention, the inner conduit is in double S types arrangements, the inner conduit two ends
Filter membrane is extended through directly to connect with inner loop interlayer.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention by inner core and shell two ends set respectively into
Water pipe, blow-off pipe, pure water inlet pipe and backwash tube, when carrying out purified water, close backflushing water intake pipe and blow-off pipe, current lead to
Water inlet pipe entrance is crossed, after the filtration of inner core, current flow out from pure water inlet pipe, the overall sensing of current is by outer lateral
Inner side is infiltered, and the impurity filtered in water will be adsorbed in the outer surface of inner core successively, when needing to clean filter core, is closed net
Water outlet pipe and water inlet pipe, open backflushing water intake pipe and blow-off pipe, the external high-pressure water of backflushing water intake pipe, current are in inner core
Side is outwardly directed, is rinsed the impurity being attached on inner core and by the guiding of deflector by the effect of High-Pressure Water
Impurity is oriented to blow-off pipe by effect, and then impurity is discharged, and by the sealing process of end cap, can be risen when in use
To the effect of closing, and directly filter core can be taken out by opening end cap, be convenient for changing when needing and changing filter core, and
And because special outlet includes pure water inlet pipe and backflushing water intake pipe be directly anchored on end cap, the feelings that will not be leaked
Condition, detergent power is stronger.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is cross-sectional view of the present invention.
In figure：1- inner cores；2- shells；3- fixed supports；4- inner loop interlayers；5- filter membranes；6- inner conduits；7- mistakes
Filtering layer；8- water inlet pipes；9- blow-off pipes；10- conversion ports；11- pure water inlet pipes；12- backflushing water intake pipes；13- valves；14- ends
Lid；15- deflectors；16- suction sheets；17- sealing rings；18- connectivity ports.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment：
As depicted in figs. 1 and 2, the invention provides a kind of cleaning part of filter element of water purifier, including inner core 1 and shell 2, institute
State inner core 1 and the two ends of shell 2 are flushed, and closing connection is carried out by end cap 14, the end cap 14 is stepped and passes through
Screw thread is connected with shell 2, on the one hand can improve the closure of purified water process, and still further aspect can improve replacing filter
The convenience degree of core, the inner core 1 is arranged on inside shell 2 by fixed support 3, and fixation is passed through between inner core 1 and shell 2
The support of support 3 forms inner loop interlayer 4, and the inner core 1 includes filter membrane 5 and inner conduit 6, and the filter membrane 5 is fixed
Installed in the outer surface of inner conduit 6, the filter membrane 5 is ceramic structure filter core, and filter membrane 5 is cylindrical, the filter membrane 5
Also directly it is connected to form fixed support structure with fixed support 3, with stronger rigid physical structure, can bears backwashed
Strong pressure in journey, the inner conduit 6 is in double S types arrangements, and the two ends of inner conduit 6 extend through filter membrane 5 and inside
Circulation interlayer 4 is directly connected, and filter layer 7, the two ends of inner loop interlayer 4 are equipped between filter membrane 5 and inner conduit 6
Water inlet pipe 8 and blow-off pipe 9 are connected to, described one end of filter membrane 5 is installed with conversion port 10, the conversion port 10
It is fixedly connected between filter membrane 5 by sealing ring 17, and connectivity port 18 is respectively equipped with T fonts on conversion port 10,
The water purification outlet pipe 11 and backflushing water intake pipe 12 are connected with connectivity port 18 respectively, and water purification is connected with the conversion port 10
Fixed on outlet 11 and backflushing water intake pipe 12, the water inlet pipe 8, blow-off pipe 9, water purification outlet pipe 11 and backflushing water intake pipe 12
Valve 13 is installed.
Preferably, the inner surface of shell 2 is installed with deflector 15, and the deflector 15 is oblique with shell 2
Hand over, and deflector 15 is inclined to and points to blow-off pipe 9 by water inlet pipe 8, it is miscellaneous by what is backwashed by the guide effect of deflector 15
Matter all rushes at blow-off pipe 9 by the effect of deflector 15, is easy to blowdown.
It may further be preferable that the quantity of the fixed support 3 is two, and two fixed supports 3 are respectively provided at shell 2
Two ends, the fixed support 3 is arranged in dual slope, and is installed with suction sheet 16 on the outer surface of fixed support 3, is passed through
The supporting role of fixed support 3, forms with three-dimensional three-D space structure, is easy to filtering and backwash in real process.
The main characteristic of the invention lies in that, the present invention sets water inlet pipe respectively by inner core and shell two ends, blow-off pipe, net
Water outlet pipe and backwash tube, when carrying out purified water, close backflushing water intake pipe and blow-off pipe, current are entered by water inlet pipe,
After the filtration of inner core, current are flowed out from pure water inlet pipe, and the overall sensing of current is infiltered from outside to inner side, in water
The impurity of filtering will be adsorbed in the outer surface of inner core successively, when needing to clean filter core, is closed pure water inlet pipe and is entered
Water pipe, opens backflushing water intake pipe and blow-off pipe, and the external high-pressure water of backflushing water intake pipe, current are outwardly directed by the inner side of inner core,
By the effect of High-Pressure Water by the impurity being attached on inner core rinse and by deflector guide effect by impurity
Blow-off pipe is oriented to, and then impurity is discharged, and by the sealing process of end cap, the work of closing can be played when in use
With, and directly can be taken out filter core by opening end cap when needing and changing filter core, it is convenient for changing, and due to special
Outlet, which includes pure water inlet pipe and backflushing water intake pipe, to be directly anchored on end cap, situation about will not leak, and purifies energy
Power is stronger.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Claims (7)
1. a kind of cleaning part of filter element of water purifier, including inner core (1) and shell (2), the inner core (1) pass through fixed support (3)
It is internal installed in shell (2), it is characterised in that：Formed between inner core (1) and shell (2) by the support of fixed support (3)
Inner loop interlayer (4), the inner core (1) includes filter membrane (5) and inner conduit (6), and the filter membrane (5) is fixedly mounted on
Inner conduit (6) outer surface, is equipped with filter layer (7), the inner loop folder between filter membrane (5) and inner conduit (6)
Layer (4) two ends are connected to water inlet pipe (8) and blow-off pipe (9), and described filter membrane (5) one end is installed with conversion port
(10) pure water inlet pipe (11) and backflushing water intake pipe (12), the water inlet pipe (8), row, are connected with the conversion port (10)
Valve (13) is installed with dirt pipe (9), water purification outlet pipe (11) and backflushing water intake pipe (12).
2. a kind of cleaning part of filter element of water purifier according to claim 1, it is characterised in that：The inner core (1) and shell
(2) two ends are flushed, and carry out closing connection by end cap (14), and the end cap (14) is stepped and by screw thread and outside
Shell (2) is connected.
3. a kind of cleaning part of filter element of water purifier according to claim 1, it is characterised in that：Shell (2) inner surface
Be installed with deflector (15), the deflector (15) with shell (2) oblique, and deflector (15) tendency is by water inlet pipe
(8) blow-off pipe (9) is pointed to.
4. a kind of cleaning part of filter element of water purifier according to claim 1, it is characterised in that：The fixed support (3)
Quantity is two, and two fixed supports (3) are respectively provided at shell (2) two ends, and the fixed support (3) arranges in dual slope,
And it is installed with suction sheet (16) on fixed support (3) outer surface.
5. a kind of cleaning part of filter element of water purifier according to claim 1, it is characterised in that：The filter membrane (5) is pottery
Porcelain filter core, and filter membrane (5) is cylindrical, the filter membrane (5) is also directly connected the fixed branch of formation with fixed support (3)
Support structure.
6. a kind of cleaning part of filter element of water purifier according to claim 1, it is characterised in that：The conversion port (10) with
It is fixedly connected between filter membrane (5) by sealing ring (17), and connectivity port is respectively equipped with T fonts on conversion port (10)
(18), the water purification outlet pipe (11) and backflushing water intake pipe (12) are connected with connectivity port (18) respectively.
7. a kind of cleaning part of filter element of water purifier according to claim 1, it is characterised in that：The inner conduit (6) is in
Double S types arrangements, inner conduit (6) two ends extend through filter membrane (5) and directly connected with inner loop interlayer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467877.5A CN107185288A (en) | 2017-06-20 | 2017-06-20 | A kind of cleaning part of filter element of water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467877.5A CN107185288A (en) | 2017-06-20 | 2017-06-20 | A kind of cleaning part of filter element of water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107185288A true CN107185288A (en) | 2017-09-22 |
Family
ID=59878901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467877.5A Pending CN107185288A (en) | 2017-06-20 | 2017-06-20 | A kind of cleaning part of filter element of water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107185288A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773926A (en) * | 2020-07-21 | 2020-10-16 | 北京金阳兴业科技有限公司 | A filter equipment for feed-grade protein peptide |
| CN111977748A (en) * | 2020-08-08 | 2020-11-24 | 王开彬 | Automatic cleaning water purifier |
| CN113413765A (en) * | 2021-07-29 | 2021-09-21 | 江苏国瓷新材料科技股份有限公司 | Ceramic membrane washing equipment and method for synthesizing Beta molecular sieve based on organic template-free agent method |
| CN113975878A (en) * | 2021-11-10 | 2022-01-28 | 江西渥泰环保科技有限公司 | Intelligent back-flushing type household water purifier |
| TWI818838B (en) * | 2022-12-23 | 2023-10-11 | 賴大立 | Backwashed, completely clean filter structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200367B1 (en) * | 1997-11-07 | 2001-03-13 | Terrance D. Phillips | Water washable stainless steel HEPA filter |
| CN201046358Y (en) * | 2007-07-09 | 2008-04-16 | 肖梓宇 | Water purifier |
| CN205182310U (en) * | 2015-11-13 | 2016-04-27 | 灵宝金源矿业股份有限公司 | Analytic liquid clarifier of electrolysis |
| CN205699680U (en) * | 2016-06-16 | 2016-11-23 | 昆山沪利微电有限公司 | A kind of efficiently building block system cooling water filtering device |
-
2017
- 2017-06-20 CN CN201710467877.5A patent/CN107185288A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200367B1 (en) * | 1997-11-07 | 2001-03-13 | Terrance D. Phillips | Water washable stainless steel HEPA filter |
| CN201046358Y (en) * | 2007-07-09 | 2008-04-16 | 肖梓宇 | Water purifier |
| CN205182310U (en) * | 2015-11-13 | 2016-04-27 | 灵宝金源矿业股份有限公司 | Analytic liquid clarifier of electrolysis |
| CN205699680U (en) * | 2016-06-16 | 2016-11-23 | 昆山沪利微电有限公司 | A kind of efficiently building block system cooling water filtering device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773926A (en) * | 2020-07-21 | 2020-10-16 | 北京金阳兴业科技有限公司 | A filter equipment for feed-grade protein peptide |
| CN111977748A (en) * | 2020-08-08 | 2020-11-24 | 王开彬 | Automatic cleaning water purifier |
| CN113413765A (en) * | 2021-07-29 | 2021-09-21 | 江苏国瓷新材料科技股份有限公司 | Ceramic membrane washing equipment and method for synthesizing Beta molecular sieve based on organic template-free agent method |
| CN113975878A (en) * | 2021-11-10 | 2022-01-28 | 江西渥泰环保科技有限公司 | Intelligent back-flushing type household water purifier |
| TWI818838B (en) * | 2022-12-23 | 2023-10-11 | 賴大立 | Backwashed, completely clean filter structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170922 |