CN113975875A - Disassembly-free self-cleaning front-mounted filtering device - Google Patents
Disassembly-free self-cleaning front-mounted filtering device Download PDFInfo
- Publication number
- CN113975875A CN113975875A CN202111280693.0A CN202111280693A CN113975875A CN 113975875 A CN113975875 A CN 113975875A CN 202111280693 A CN202111280693 A CN 202111280693A CN 113975875 A CN113975875 A CN 113975875A
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- cleaning
- water
- water outlet
- water inlet
- valve core
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- 238000004140 cleaning Methods 0.000 title claims abstract description 107
- 238000001914 filtration Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 214
- 239000008213 purified water Substances 0.000 claims abstract description 12
- 238000009423 ventilation Methods 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 24
- 239000010935 stainless steel Substances 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 238000011045 prefiltration Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 description 11
- 238000005507 spraying Methods 0.000 description 8
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Images
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
- B01D29/11—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
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering 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
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/668—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with valves, e.g. rotating valves for coaxially placed filtering elements
-
- 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
Abstract
The invention relates to a disassembly-free self-cleaning preposed filtering device which comprises a water control switch (1), a connecting pipe (2) and a filter (3), wherein one end of the water control switch (1) is provided with a water inlet interface (11) communicated with a water source, the other end of the water control switch is provided with a water outlet interface (15), the water outlet interface (15) is communicated with a filtering water inlet (32) of the filter (3) through a joint, and a purified water outlet (37) of the filter (3) is provided with a ventilation valve (4); the water control switch (1) is also provided with a cleaning water inlet (13), the filter (3) is provided with a cleaning water outlet (36), and the cleaning water inlet (13) is communicated with the cleaning water outlet (36) through a connecting pipe (2). The invention has the advantages that: 1. the inner wall and the outer wall of the filter screen can be washed and cleaned without disassembly. 2. The full-automatic cleaning can be realized by rotating the water control switch and the valve, the structure is simple, the labor is saved, and the like.
Description
Technical Field
The invention relates to a disassembly-free self-cleaning front-mounted filter device.
Background
The pre-filter is generally installed behind a household tap water meter, plays a role in pre-filtering all inflow water, can play a role in protecting household pipelines, taps and wading electrical appliances, can effectively prolong the service life of the water purifier, and prolongs the service cycle of a filter element. Play filtering action's stainless steel filter screen in the leading filter with silt, granule type impurity such as rust is held back in the filter bottle, if meet quality of water than poor, the filter screen jam can appear in the long-time uncleaning of user, and influence the filter effect, the cleaning methods commonly used at present stage are generally unpack apart filter manual cleaning filter screen or carry out the back flush with the running water, but the manual work is washed comparatively trouble and is needed to dismantle the unable self-operation of filter part user, the back flush is because of the unable direct evacuation of filter water storage during washing, the residual water can weaken the impact force of washing rivers to the downthehole filth of filter screen, and the filth in the filter screen mesh can't be washed totally, the washing effect is unsatisfactory.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a disassembly-free self-cleaning preposed filtering device, and the technical scheme of the invention is as follows:
the disassembly-free self-cleaning preposed filtering device is characterized by comprising a water control switch (1), a connecting pipe (2) and a filter (3), wherein one end of the water control switch (1) is provided with a water inlet interface (11) communicated with a water source, the other end of the water control switch is provided with a water outlet interface (15), the water outlet interface (15) is communicated with a filtering water inlet (32) of the filter (3) through a joint, and a purified water outlet (37) of the filter (3) is provided with a ventilation valve (4); the water control switch (1) is also provided with a cleaning water inlet (13), the filter (3) is provided with a cleaning water outlet (36), and the cleaning water inlet (13) is communicated with the cleaning water outlet (36) through a connecting pipe (2); the filter (3) comprises a cover body (31), a bottle body (33), a stainless steel filter screen (34) and a cleaning pipe (35), wherein the bottle body (33) is of a double-layer design, an annular inner shell (39) is arranged inside the bottle body (33), and an outer cleaning water cavity (40) is formed between the annular inner shell (39) and the bottle body (33); first water spray holes are densely arranged on the annular inner shell (39), second water through holes (38) are formed in the bottom of the bottle body (33), and drain valves (7) are mounted at the second water through holes (38); one side of the cover body (31) is provided with a filtering water inlet (32), and the other side is provided with a purified water outlet (37); a cleaning water outlet (36) is formed in the top of the cover body (31), and the lower end of the cleaning water outlet (36) is divided into a side water outlet and a lower water outlet; the tail end of a side water outlet on the cleaning water outlet (36) is downwards communicated with an outer cleaning water cavity (40) of the bottle body (33); the cleaning pipe (35) is fixedly arranged at the end part of the lower water outlet of the cleaning water outlet (36) through threads, and second water spray holes which are densely arranged are formed in the cleaning pipe (35); the upper part of the bottle body (33) is connected with the cover body (31) through threads; the stainless steel filter screen (34) is fixedly arranged in a cavity between the bottle body (33) and the cover body (31), the cleaning pipe (35) is arranged in the stainless steel filter screen (34), an outer cavity is formed between the stainless steel filter screen (34) and the annular inner shell (39), and an inner cavity is formed between the stainless steel filter screen (34) and the cleaning pipe (35); the filtering water inlet (32) is communicated with the outer cavity; the purified water outlet (37) is communicated with the inner cavity.
The water control switch (1) comprises a switch shell (12) and a valve core (14), wherein one end of the switch shell (12) is provided with the water inlet interface (11), the other end of the switch shell is provided with the water outlet interface (15), the top of the switch shell (12) is provided with a cleaning water inlet (13), the valve core (14) is arranged in an inverted T shape and is rotatably arranged in the switch shell (12), the handle part of the valve core (14) is provided with a plurality of first water through holes (16), when the valve core (14) is arranged along the vertical direction, the water inlet interface (11) is communicated with the water outlet interface (15), and the upper blocking part of the valve core seals the cleaning water inlet (13); when the valve core (14) rotates anticlockwise, the water inlet interface (11) is communicated with the cleaning water inlet (13), and the water outlet interface (15) is sealed by the lower plugging part of the valve core; when the valve core (14) rotates clockwise, the lower plugging part of the valve core (14) seals the water inlet interface (11), and the rotation of the valve core (14) is manually controlled.
A bottle body sealing ring (5) is arranged between the bottle body (33) and the cover body (31); and a cleaning sealing ring (8) is arranged between the annular inner shell (39) and the cover body (31).
And a filter screen sealing ring (6) is arranged between the stainless steel filter screen (34) and the cover body (31).
Each first water spraying hole in the annular inner shell (39) is arranged in a conical mode, the flaring end of each first water spraying hole is located on the outer arc surface of the inner shell, and the necking end of each first water spraying hole is located on the inner arc surface of the inner shell.
Each second hole for water spraying of scavenge pipe (35) all be the toper setting, the flaring end of this second hole for water spraying is located the inner wall of scavenge pipe, the necking end is located the outer wall of scavenge pipe.
The invention has the advantages that:
1. the inner wall and the outer wall of the filter screen can be washed and cleaned without disassembly.
2. The full-automatic cleaning can be realized by rotating the water control switch and the valve, the structure is simple, and the labor is saved.
3. Be equipped with the breather valve, open the water deposit in the breather valve emptiable filter before the washing, reduce and deposit the influence of water to washing effect when washing, improve the cleaning performance.
4. The cleaning water washes the outer wall of the filter screen inwards from the annular inner shell, and washes the inner wall of the filter screen outwards from the cleaning pipe, so that the dirt on the outer wall and the inner wall of the filter screen can be washed clean at the same time.
5. The pipe diameter design of connecting pipe and scavenge pipe is less than the pipe diameter of running water inlet tube, under the unchangeable condition of water pressure of intaking, washes out water pressure grow, improves the washing water flow velocity of flow simultaneously, improves the cleaning performance.
6. The second water spray holes on the cleaning pipe and the first water spray holes on the annular inner shell are both in conical design, so that the washing water can be sprayed in an umbrella shape during washing, the washing coverage area is effectively increased, and the washing dead angle is avoided. 6. Sludge in meshes of the filter screen can be effectively removed under the action of umbrella-shaped water flow high-speed impact vibration.
Drawings
Fig. 1 is a schematic structural diagram of the water purification working state of the present invention.
Fig. 2 is a schematic structural diagram of the self-cleaning working state of the present invention.
Fig. 3 is a schematic structural view of the water control switch of the present invention.
Fig. 4 is a schematic view of the filter construction of the present invention.
FIG. 5 is a schematic view of the structure of the bottle body of the present invention
FIG. 6 is a schematic view of the structure of the cleaning tube of the present invention. .
FIG. 7 is a schematic view of the water jet hole structure of the cleaning pipe of the present invention.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
Referring to fig. 1 to 7, the invention relates to a disassembly-free self-cleaning pre-filtering device, which comprises a disassembly-free self-cleaning pre-filtering device, and is characterized by comprising a water control switch 1, a connecting pipe 2 and a filter 3, wherein one end of the water control switch 1 forms a water inlet interface 11 communicated with a water source, the other end of the water control switch forms a water outlet interface 15, the water outlet interface 15 is communicated with a filtering water inlet 32 of the filter 3 through a connector, and a ventilation valve 4 is arranged at a purified water outlet 37 of the filter 3; the water control switch 1 is also provided with a cleaning water inlet 13, the filter 3 is provided with a cleaning water outlet 36, and the cleaning water inlet 13 is communicated with the cleaning water outlet 36 through a connecting pipe 2; the filter 3 comprises a cover body 31, a bottle body 33, a stainless steel filter screen 34 and a cleaning pipe 35, wherein the bottle body 33 is of a double-layer design, an annular inner shell 39 is arranged in the bottle body 33, and an outer cleaning water cavity 40 is formed between the inner shell 39 and the bottle body 33; the inner shell 39 is provided with first water spray holes which are densely arranged, the bottom of the bottle body 33 is provided with a second water through hole 38, and the drain valve 7 is arranged at the second water through hole 38; one side of the cover body 31 is provided with a filtering water inlet 32, and the other side is provided with a purified water outlet 37; a cleaning water outlet 36 is formed in the top of the cover body 31, and the lower end of the cleaning water outlet 36 is divided into a side water outlet and a lower water outlet; the tail end of the side water outlet on the cleaning water outlet 36 is downwards communicated with the outer cleaning water cavity 40 of the bottle body 33; the cleaning pipe 35 is fixedly arranged at the lower water outlet end part of the cleaning water outlet 36 through threads, and the cleaning pipe 35 is provided with second densely arranged water spray holes; the upper part of the bottle body 33 is connected with the cover body 31 through screw threads; the stainless steel filter screen 34 is fixedly arranged in a cavity between the bottle body 33 and the cover body 31, the cleaning pipe 35 is arranged in the stainless steel filter screen 34, an outer cavity is formed between the stainless steel filter screen 34 and the annular inner shell 39, and an inner cavity is formed between the stainless steel filter screen 34 and the cleaning pipe 35; the filtering water inlet 32 is communicated with the outer cavity; the purified water outlet 37 is communicated with the inner cavity.
The water control switch 1 comprises a switch shell 12 and a valve core 14, wherein one end of the switch shell 12 is provided with the water inlet port 11, the other end of the switch shell 12 is provided with the water outlet port 15, the top of the switch shell 12 is provided with a cleaning water inlet 13, the valve core 14 is arranged in an inverted T shape and is rotatably arranged in the switch shell 12, the handle part of the valve core 14 is provided with a plurality of first water through holes 16, when the valve core 14 is arranged along the vertical direction, the water inlet port 11 is communicated with the water outlet port 15, and the upper blocking part of the valve core seals the cleaning water inlet 13; when the valve core 14 rotates anticlockwise, the water inlet port 11 is communicated with the cleaning water inlet 13, and the water outlet port 15 is sealed by the lower plugging part of the valve core; when the valve core 14 rotates clockwise, the lower plugging part of the valve core 14 seals the water inlet interface 11; the rotation of the valve element 14 is manually controlled by hand.
A bottle body sealing ring 5 is arranged between the bottle body 33 and the cover body 31, and a cleaning sealing ring 8 is arranged between the annular inner shell 39 and the cover body 31.
And a filter screen sealing ring 6 is arranged between the stainless steel filter screen 34 and the cover body 31.
Each first water jet hole on the annular inner shell 39 is arranged in a conical shape, the flaring end of the first water jet hole is positioned on the outer arc surface of the inner shell, and the necking end is positioned on the inner arc surface of the inner shell.
Each second hole for water spraying of the cleaning pipe 35 is arranged in a conical shape, the flaring end of the second hole for water spraying is arranged on the inner wall of the cleaning pipe, and the necking end is arranged on the outer wall of the cleaning pipe.
The working principle of the invention is as follows:
when the water purifier works in a water purification mode, the vent valve 4 and the drain valve 7 are closed, the water control switch 1 is rotated, the valve core 14 is placed in a middle position, the water inlet 11 is communicated with the water outlet 15, the cleaning water inlet 13 is closed, tap water enters the outer cavity of the filter 3 through the filtering water inlet 32 of the filter 3 and enters the inner cavity through the stainless steel filter screen 34, impurities such as large-particle silt in the water are remained in the outer cavity outside the stainless steel filter screen 34, and purified water filtered by the inner cavity enters the next procedure from the purified water outlet 37 under the action of water pressure.
When the self-cleaning type water purifier works in a self-cleaning mode, firstly, the water control switch is rotated clockwise to seal the water inlet port 11, the valve core 14 is placed at a water stop level, the vent valve 4 and the drain valve 7 are opened, the stored water in the filter 3 is firstly emptied to reduce the resistance during cleaning, the cleaning effect is improved, then, the water control switch 1 is rotated anticlockwise to place the valve core 14 at a cleaning position, the water inlet port 11 is communicated with the cleaning water inlet 13, the water outlet port 15 is sealed, tap water enters an outer cleaning water cavity 40 formed by the bottle body 33 and the annular inner shell 39 to the side through a cleaning water outlet 36 communicated with the connecting pipe 2, the tap water sprays and cleans the outer wall of the filter screen 34 from a first water spraying hole on the annular inner shell 39 under the action of water pressure, and the cleaned sewage flows downwards from an outer cavity outside the filter screen 34; tap water enters the outer cleaning water cavity 40 from the cleaning water outlet 36, meanwhile, the self cleaning water outlet 36 enters the cleaning pipe 35 downwards, the second water spray holes in the self cleaning pipe 35 spray the inner wall of the filter screen to the stainless steel filter screen 34 under the action of water pressure, the cleaned sewage penetrates through the stainless steel filter screen 34 and enters the outer cavity on the outer side of the filter screen 34 to flow downwards, and the cleaned sewage, silt and other impurities are discharged through the drain valve 7 communicated with the second water through holes 38 until the stainless steel filter screen 34 is cleaned.
When in the maintenance mode, the water control switch 1 is rotated clockwise to place the valve core 14 at the water stop level, and the water inlet port 11 is closed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The disassembly-free self-cleaning preposed filtering device is characterized by comprising a water control switch (1), a connecting pipe (2) and a filter (3), wherein one end of the water control switch (1) is provided with a water inlet interface (11) communicated with a water source, the other end of the water control switch is provided with a water outlet interface (15), the water outlet interface (15) is communicated with a filtering water inlet (32) of the filter (3) through a joint, and a purified water outlet (37) of the filter (3) is provided with a ventilation valve (4); the water control switch (1) is also provided with a cleaning water inlet (13), the filter (3) is provided with a cleaning water outlet (36), and the cleaning water inlet (13) is communicated with the cleaning water outlet (36) through a connecting pipe (2); the filter (3) comprises a cover body (31), a bottle body (33), a stainless steel filter screen (34) and a cleaning pipe (35), wherein the bottle body (33) is of a double-layer design, an annular inner shell (39) is arranged inside the bottle body (33), and an outer cleaning water cavity (40) is formed between the annular inner shell (39) and the bottle body (33); first water spray holes are densely arranged on the annular inner shell (39), second water through holes (38) are formed in the bottom of the bottle body (33), and drain valves (7) are mounted at the second water through holes (38); one side of the cover body (31) is provided with a filtering water inlet (32), and the other side is provided with a purified water outlet (37); a cleaning water outlet (36) is formed in the top of the cover body (31), and the lower end of the cleaning water outlet (36) is divided into a side water outlet and a lower water outlet; the tail end of a side water outlet on the cleaning water outlet (36) is downwards communicated with an outer cleaning water cavity (40) of the bottle body (33); the cleaning pipe (35) is fixedly arranged at the end part of the lower water outlet of the cleaning water outlet (36) through threads, and second water spray holes which are densely arranged are formed in the cleaning pipe (35); the upper part of the bottle body (33) is connected with the cover body (31) through threads; the stainless steel filter screen (34) is fixedly arranged in a cavity between the bottle body (33) and the cover body (31), the cleaning pipe (35) is arranged in the stainless steel filter screen (34), an outer cavity is formed between the stainless steel filter screen (34) and the annular inner shell (39), and an inner cavity is formed between the stainless steel filter screen (34) and the cleaning pipe (35); the filtering water inlet (32) is communicated with the outer cavity; the purified water outlet (37) is communicated with the inner cavity.
2. The disassembly-free self-cleaning pre-filtration device as claimed in claim 1, wherein the water control switch (1) comprises a switch housing (12) and a valve core (14), one end of the switch housing (12) is provided with the water inlet (11), the other end of the switch housing is provided with the water outlet (15), the top of the switch housing (12) is provided with a cleaning water inlet (13), the valve core (14) is arranged in an inverted T shape, the switch housing (12) is rotatably installed inside, a plurality of first water through holes (16) are arranged on the handle portion of the valve core (14), when the valve core (14) is arranged along a vertical direction, the water inlet (11) is communicated with the water outlet (15), and an upper blocking portion of the valve core closes the cleaning water inlet (13); when the valve core (14) rotates anticlockwise, the water inlet interface (11) is communicated with the cleaning water inlet (13), and the water outlet interface (15) is sealed by the lower plugging part of the valve core; when the valve core (14) rotates clockwise, the lower plugging part of the valve core (14) seals the water inlet interface (11), and the rotation of the valve core (14) is manually controlled.
3. The disassembly-free self-cleaning front-mounted filter device as recited in claim 1, wherein a bottle body sealing ring (5) is arranged between the bottle body (33) and the cover body (31); and a cleaning sealing ring (8) is arranged between the annular inner shell (39) and the cover body (31).
4. A disassembly-free self-cleaning pre-filter device as claimed in claim 1, wherein a filter screen sealing ring (6) is arranged between the stainless steel filter screen (34) and the cover body (31).
5. The disassembly-free self-cleaning pre-filtering device as recited in claim 1, wherein each first water jet hole of the inner shell (39) is tapered, and the flared end of the first water jet hole is located on the outer cambered surface of the inner shell and the tapered end is located on the inner cambered surface of the inner shell.
6. A disassembly-free self-cleaning pre-filter device as claimed in claim 3, wherein each second water jet hole of the cleaning tube (35) is tapered, and the flared end of the second water jet hole is located on the inner wall of the cleaning tube and the tapered end is located on the outer wall of the cleaning tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111280693.0A CN113975875A (en) | 2021-10-29 | 2021-10-29 | Disassembly-free self-cleaning front-mounted filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111280693.0A CN113975875A (en) | 2021-10-29 | 2021-10-29 | Disassembly-free self-cleaning front-mounted filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113975875A true CN113975875A (en) | 2022-01-28 |
Family
ID=79745205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111280693.0A Pending CN113975875A (en) | 2021-10-29 | 2021-10-29 | Disassembly-free self-cleaning front-mounted filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113975875A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143303A (en) * | 2007-06-29 | 2008-03-19 | 浙江沁园水处理科技股份有限公司 | Household full-automatic double film self-flushing water-purifying device |
| CN106139666A (en) * | 2016-08-03 | 2016-11-23 | 厦门建霖工业有限公司 | Double-layer leaching net fore filter and method of work thereof |
| CN207270825U (en) * | 2017-09-01 | 2018-04-27 | 杭州上益优水电器科技有限公司 | A kind of fore filter that synchronously can just backwashing |
| CN207270824U (en) * | 2017-09-01 | 2018-04-27 | 杭州上益优水电器科技有限公司 | A kind of fore filter |
| CN108187397A (en) * | 2018-02-14 | 2018-06-22 | 北京华金浩环保供水设备有限公司 | Visual bidirectional y-type filter, urban life water system and circulating heating system |
| CN108392879A (en) * | 2018-04-26 | 2018-08-14 | 宁波灏钻科技有限公司 | A kind of multi-functional fore filter and its application method |
| CN110613972A (en) * | 2019-09-10 | 2019-12-27 | 江苏鸿碧科技发展有限公司 | Back-washing pre-filter |
| CN112044152A (en) * | 2020-09-24 | 2020-12-08 | 江西祐臣节能净化科技有限公司 | Self-cleaning water filter |
-
2021
- 2021-10-29 CN CN202111280693.0A patent/CN113975875A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143303A (en) * | 2007-06-29 | 2008-03-19 | 浙江沁园水处理科技股份有限公司 | Household full-automatic double film self-flushing water-purifying device |
| CN106139666A (en) * | 2016-08-03 | 2016-11-23 | 厦门建霖工业有限公司 | Double-layer leaching net fore filter and method of work thereof |
| CN207270825U (en) * | 2017-09-01 | 2018-04-27 | 杭州上益优水电器科技有限公司 | A kind of fore filter that synchronously can just backwashing |
| CN207270824U (en) * | 2017-09-01 | 2018-04-27 | 杭州上益优水电器科技有限公司 | A kind of fore filter |
| CN108187397A (en) * | 2018-02-14 | 2018-06-22 | 北京华金浩环保供水设备有限公司 | Visual bidirectional y-type filter, urban life water system and circulating heating system |
| CN108392879A (en) * | 2018-04-26 | 2018-08-14 | 宁波灏钻科技有限公司 | A kind of multi-functional fore filter and its application method |
| CN110613972A (en) * | 2019-09-10 | 2019-12-27 | 江苏鸿碧科技发展有限公司 | Back-washing pre-filter |
| CN112044152A (en) * | 2020-09-24 | 2020-12-08 | 江西祐臣节能净化科技有限公司 | Self-cleaning water filter |
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