CN113213647A - Combined cleaning-free wastewater-free water purifier - Google Patents

Combined cleaning-free wastewater-free water purifier Download PDF

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Publication number
CN113213647A
CN113213647A CN202110353940.9A CN202110353940A CN113213647A CN 113213647 A CN113213647 A CN 113213647A CN 202110353940 A CN202110353940 A CN 202110353940A CN 113213647 A CN113213647 A CN 113213647A
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CN
China
Prior art keywords
fixedly connected
box body
free
water purifier
supporting platform
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.)
Granted
Application number
CN202110353940.9A
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Chinese (zh)
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CN113213647B (en
Inventor
曹海波
陈本富
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Wuhan Yihubaiying Information Technology Co.,Ltd.
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Wuhan Weile Nizhixiang Technology Co ltd
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Priority to CN202110353940.9A priority Critical patent/CN113213647B/en
Publication of CN113213647A publication Critical patent/CN113213647A/en
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Publication of CN113213647B publication Critical patent/CN113213647B/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/002Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in parallel connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46Regenerating the filtering material in the filter
    • B01D24/4631Counter-current flushing, e.g. by air
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance

Abstract

The invention discloses a combined cleaning-free wastewater-free water purifier, which relates to the technical field of water purifying equipment and comprises a box body, wherein a supporting platform is fixedly connected to the inner bottom wall of the box body, a limiting groove is fixedly connected to the upper surface of the supporting platform, a filtering mechanism is arranged on the upper surface of the supporting platform, a pressure bin is fixedly connected to the inner top wall of the box body, a first water guide pipe is fixedly connected to the bottom surface of the pressure bin, and a driving mechanism is fixedly connected to the inner top wall of the box body. The automatic replacement device is reasonable in design structure, the water passing through the filtering mechanism can be filtered by arranging the filtering mechanism, the pressure bin, the water inlet pipe and the water outlet pipe, when the pressure in the pressure bin is reduced due to the fact that more impurities are accumulated in the filtering mechanism and the water flow is reduced, the driving mechanism drives the driving mechanism to drive the filtering mechanism to rotate, the limiting mechanism limits the filtering mechanism, and automatic replacement of an active carbon filter in the filtering mechanism is achieved.

Description

Combined cleaning-free wastewater-free water purifier
Technical Field
The invention relates to the technical field of water purifying equipment, in particular to a combined cleaning-free wastewater-free water purifier.
Background
A water purifier is also called a water purifier or a water purifier, and is a water treatment apparatus for performing deep filtration and purification treatment on water according to a use requirement of water.
The filter element of the water purifier is often required to be frequently replaced in the existing water purifying equipment, which is very inconvenient, even though the water purifying equipment with the self-cleaning function is often discharged with a large amount of waste water generated in the self-cleaning process, more water resources are wasted, and much trouble is brought to the daily life of people; therefore, the combined cleaning-free wastewater-free water purifier is provided to solve the problems.
Disclosure of Invention
The invention provides a combined cleaning-free wastewater-free water purifier aiming at the technical problems in the prior art.
The technical scheme for solving the technical problems is as follows: a combined cleaning-free wastewater-free water purifier comprises a box body, wherein a supporting platform is fixedly connected to the inner bottom wall of the box body, a limiting groove is fixedly connected to the upper surface of the supporting platform, a filtering mechanism is arranged on the upper surface of the supporting platform, a pressure bin is fixedly connected to the inner top wall of the box body, a first water guide pipe is fixedly connected to the bottom surface of the pressure bin, a driving mechanism is fixedly connected to the inner top wall of the box body, a water inlet pipe is communicated with the left side surface of the pressure bin, a water outlet pipe is communicated with the bottom surface of the supporting platform, a transmission mechanism is rotatably connected to the inner top wall of the box body, a transmission belt is arranged inside the box body, an air inlet bin is fixedly connected to the inner bottom wall of the box body, the upper surface of the air inlet bin is fixedly connected with the bottom surface of the supporting platform, a heating block is fixedly connected to the inner bottom wall of the air inlet bin, and an air outlet bin is fixedly connected to the inner side wall of the box body, the inner wall fixedly connected with horizontal pole in exhaust storehouse, the left surface fixedly connected with air exhauster of horizontal pole, the interior roof fixedly connected with stop gear of filter mechanism, the equal fixedly connected with sealing member in bottom surface in first aqueduct and exhaust storehouse, and the bottom surface of two sealing members all with filter mechanism's last surface sliding connection.
Preferably, the above-mentioned combined type cleaning-free wastewater-free water purifier, wherein the front of the box body is hinged with two cabinet doors through a pin shaft, two handles are fixedly connected to the front of the cabinet doors, and two shutters are fixedly connected to the right side surface of the box body.
Preferably, in the above-mentioned combined cleaning-free wastewater-free water purifier, the upper surface of the supporting platform is fixedly connected with a rotating shaft, and the filtering mechanism is rotatably connected with the rotating shaft.
Preferably, the combined non-cleaning wastewater-free water purifier is characterized in that a plurality of activated carbon filters in equidistant circumferential arrays are arranged in the filtering mechanism, and the upper surface of the filtering mechanism is fixedly connected with the first roller.
Preferably, foretell combination formula is exempted from to wash and is had no waste water purifier, wherein actuating mechanism's inside sliding connection has the rack, and the left end of rack runs through actuating mechanism's inner wall and extends to actuating mechanism's left, the first expanding spring of right flank fixedly connected with of rack, and the one end that rack and actuating mechanism's inner wall fixed connection were kept away from to first expanding spring, actuating mechanism's bottom surface intercommunication has the second aqueduct, and the one end that actuating mechanism was kept away from to the second aqueduct is linked together with the pressure bin.
Preferably, the combined non-cleaning wastewater-free water purifier is characterized in that the outer surface of the transmission mechanism is fixedly connected with an one-way ratchet matched with the rack, the rack is meshed with the one-way ratchet, the bottom surface of the transmission mechanism is fixedly connected with a second roller, and the first roller is in transmission connection with the second roller through a transmission belt.
Preferably, foretell combination formula is exempted from to wash and is not had waste water purifier, wherein stop gear's bottom surface fixedly connected with backup pad, the top of backup pad is provided with two gag lever posts, and the bottom surface of two gag lever posts all runs through the upper surface of backup pad and extends to the below of backup pad, two the equal fixedly connected with fixture block in surface of gag lever post, two the surface of gag lever post all overlaps and is equipped with the second expanding spring, and the top and the bottom of second expanding spring respectively with the bottom surface of backup pad and the last fixed surface of fixture block be connected, two the bottom surface of backup pad all with the upper surface sliding connection of spacing groove.
The invention has the beneficial effects that:
firstly, the combined type cleaning-free wastewater-free water purifier can filter water passing through the filtering mechanism by arranging the filtering mechanism, the pressure bin, the water inlet pipe and the water outlet pipe, the driving mechanism, the transmission mechanism and the transmission belt are arranged, when more impurities accumulated in the filtering mechanism are reduced and the pressure in the pressure bin is increased, the driving mechanism drives the transmission mechanism to drive the filtering mechanism to rotate, the filtering mechanism is limited by the limiting mechanism, the automatic replacement of an active carbon filter in the filtering mechanism is realized, the air entering the box body can be heated by the heating block in the air inlet bin and is extracted by the exhaust fan by arranging the air inlet bin and the exhaust bin, the processes of heating the active carbon filter and extracting impurities are realized, and the active carbon filter enters the next filtering cycle.
The combined type cleaning-free wastewater-free water purifier is provided with the cabinet door, the handle and the shutter, so that the box body can be opened more conveniently and rapidly, later maintenance of equipment is facilitated, impurities are prevented from entering the equipment when the equipment is operated by the shutter, the filtering mechanism can rotate around the rotating shaft by the arrangement of the rotating shaft, the filtering mechanism is prevented from being misplaced, more standby filtering components can be provided by arranging the activated carbon filter and the first rolling shaft, and moisture can pass through a new activated carbon filter after the filtering mechanism rotates, so that the filtering effect of the equipment is enhanced.
Drawings
FIG. 1 is a schematic sectional elevation view of the structure of the present invention;
FIG. 2 is a rear cross-sectional view of the structure of the present invention;
FIG. 3 is a schematic cross-sectional view of a filter mechanism according to the present invention;
FIG. 4 is a schematic cross-sectional view of the drive mechanism of the present invention;
fig. 5 is an external structural view of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a box body, 2, a supporting platform, 3, a limiting groove, 4, a filtering mechanism, 401, an activated carbon filter, 402, a first rolling shaft, 5, a pressure chamber, 6, a first water guide pipe, 7, a driving mechanism, 701, a rack, 702, a first expansion spring, 703, a second water guide pipe, 8, a water inlet pipe, 9, a water discharge pipe, 10, a transmission mechanism, 1001, a one-way ratchet wheel, 1002, a second rolling shaft, 11, a transmission belt, 12, an air inlet chamber, 13, a heating block, 14, an air exhaust chamber, 15, a cross bar, 16, an exhaust fan, 17, a limiting mechanism, 1701, a supporting plate, 1702, a limiting bar, 1703, a clamping block, 1704, a second expansion spring, 18, a cabinet door, 19, a handle, 20, a shutter, 21, a rotating shaft, 22 and a sealing element.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-5, a combined cleaning-free wastewater-free water purifier comprises a box body 1, wherein the front of the box body 1 is hinged with two cabinet doors 18 through pin shafts, the front of each cabinet door 18 is fixedly connected with a handle 19, the right side of the box body 1 is fixedly connected with two shutters 20, the box body 1 can be opened more conveniently and rapidly, the later maintenance of equipment is facilitated, meanwhile, the shutters 20 are utilized to prevent impurities from entering the equipment when the equipment is operated, the inner bottom wall of the box body 1 is fixedly connected with a supporting platform 2, the upper surface of the supporting platform 2 is fixedly connected with a limiting groove 3, the upper surface of the supporting platform 2 is provided with a filtering mechanism 4, the upper surface of the supporting platform 2 is fixedly connected with a rotating shaft 21, and the filtering mechanism 4 is rotatably connected with the rotating shaft 21, the filtering mechanism 4 can rotate around the rotating shaft 21, and the dislocation of the filtering mechanism 4 is prevented, a plurality of activated carbon filters 401 which are arrayed in a circumferential manner at equal intervals are arranged in the filtering mechanism 4, a first rolling shaft 402 is fixedly connected to the upper surface of the filtering mechanism 4 and can provide more standby filtering components, so that moisture of the filtering mechanism 4 can pass through a new activated carbon filter 401 after rotating, the filtering effect of the equipment is enhanced, a pressure chamber 5 is fixedly connected to the inner top wall of the box body 1, a first water guide pipe 6 is fixedly connected to the bottom surface of the pressure chamber 5, a driving mechanism 7 is fixedly connected to the inner top wall of the box body 1, a water inlet pipe 8 is communicated with the left side surface of the pressure chamber 5, a water outlet pipe 9 is communicated with the bottom surface of the supporting platform 2, a transmission mechanism 10 is rotatably connected to the inner top wall of the box body 1, a one-way ratchet 1001 matched with the rack 701 is fixedly connected to the outer surface of the transmission mechanism 10, the rack 701 is meshed with the one-way ratchet 1001, a second rolling shaft 1002 is fixedly connected to the bottom surface of the transmission mechanism 10, the first roller 402 is in transmission connection with the second roller 1002 through the transmission belt 11, the rotation of the transmission mechanism 10 can be prevented through the one-way ratchet 1001, meanwhile, the second roller 1002 drives the filter mechanism 4 to automatically replace the filter element, the driving mechanism 7 is internally and slidably connected with a rack 701, the left end of the rack 701 penetrates through the inner wall of the driving mechanism 7 and extends to the left of the driving mechanism 7, the right side surface of the rack 701 is fixedly connected with a first extension spring 702, one end of the first extension spring 702, which is far away from the rack 701, is fixedly connected with the inner wall of the driving mechanism 7, the bottom surface of the driving mechanism 7 is communicated with a second water guide pipe 703, one end of the second water guide pipe 703, which is far away from the driving mechanism 7, is communicated with the pressure bin 5, the pressure can be applied to the driving mechanism 7 through the pressure bin 5 to drive the rack 701 to reciprocate, the rotation of the transmission mechanism 10 is realized, and the rack 701 can be driven to reset by the first extension spring 702, conveniently carry out the next reciprocating cycle, the inside of the box 1 is provided with a transmission belt 11, the inner bottom wall of the box 1 is fixedly connected with an air inlet bin 12, the upper surface of the air inlet bin 12 is fixedly connected with the bottom surface of the supporting platform 2, the inner bottom wall of the air inlet bin 12 is fixedly connected with a heating block 13, the inner side wall of the box 1 is fixedly connected with an exhaust bin 14, the inner wall of the exhaust bin 14 is fixedly connected with a cross rod 15, the left side surface of the cross rod 15 is fixedly connected with an exhaust fan 16, the inner top wall of the filtering mechanism 4 is fixedly connected with a limiting mechanism 17, the bottom surfaces of the first water guide pipe 6 and the exhaust bin 14 are both fixedly connected with sealing elements 22, the bottom surfaces of the two sealing elements 22 are both connected with the upper surface of the filtering mechanism 4 in a sliding manner, the bottom surface of the limiting mechanism 17 is fixedly connected with a supporting plate 1701, two limiting rods 1702 are arranged above the supporting plate 1701, and the bottom surfaces of the two limiting rods 1702 both penetrate through the upper surface of the supporting plate 1701 and extend to the lower part of the supporting plate 1701, the equal fixedly connected with fixture block 1703 of surface of two gag lever posts 1702, the surface of two gag lever posts 1702 all overlaps and is equipped with second expanding spring 1704, and the top and the bottom of second expanding spring 1704 respectively with the bottom surface of backup pad 1701 and the last fixed surface of fixture block 1703 are connected, the bottom surface of two backup pads 1701 all with the upper surface sliding connection of spacing groove 3, can be after the filter mechanism 4 is rotatory new active carbon filter 401 not with the inlet tube 8 complete coincidence, but when the filter mechanism 4 that pressure had been released and lead to in the pressure reservoir 5 can't remove, reset or continue the drive to filter mechanism 4, prevent filter mechanism 4 irrotational.
The working principle is as follows: the input end of a water inlet pipe 8 is connected with a raw water position, the output end of a water outlet pipe 9 is connected with a water position, then a heating block 13 is firstly opened, an exhaust fan 16 is opened after the heating block 13 is preheated, then the raw water is introduced into a pressure chamber 5, after the raw water enters the pressure chamber 5, the raw water enters a filter mechanism 4 through a first water guide pipe 6 to realize filtration and is discharged from the output end of the water outlet pipe 9, when impurities contained in a corresponding activated carbon filter 401 in the filter mechanism 4 are more, the water flow passing through the activated carbon filter 401 is reduced, the water pressure in the pressure chamber 5 is increased, then the pressure chamber 5 transmits the pressure to the interior of a driving mechanism 7, a rack 701 of the driving mechanism 7 drives a transmission mechanism 10 to rotate, the transmission mechanism 10 drives the filter mechanism 4 to rotate through a second roller 1002, and the automatic filter element replacement of the equipment is realized, when the filtering mechanism 4 is not rotated in place and the pressure in the pressure bin 5 cannot reach the standard, the limiting mechanism 17 performs assistance or reverse thrust on the filtering mechanism 4 through the limiting rod 1702, so that one of the activated carbon filters 401 in the filtering mechanism 4 is reset or replaced, the filtering effect is enhanced, then under the suction force of the exhaust fan 16, fresh air continuously enters the inside of the filtering mechanism 4 through the air inlet bin 12 and is exhausted from the exhaust bin 14 after passing through the activated carbon filter 401 containing impurities, after the air is heated by the heating block 13, the air entering the filtering mechanism 4 has a drying function, the cleaning effect on the activated carbon filter 401 containing the impurities is enhanced, then the impurities in the corresponding activated carbon filter 401 are wrapped by hot air and are exhausted to the outside of the equipment through the exhaust bin 14, and the cleaning-free and wastewater-free self-cleaning function of the equipment is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. The utility model provides a modular no-clean no waste water purifier, includes box (1), its characterized in that: the inner bottom wall of the box body (1) is fixedly connected with a supporting platform (2), the upper surface of the supporting platform (2) is fixedly connected with a limiting groove (3), the upper surface of the supporting platform (2) is provided with a filtering mechanism (4), the inner top wall of the box body (1) is fixedly connected with a pressure chamber (5), the bottom surface of the pressure chamber (5) is fixedly connected with a first water guide pipe (6), the inner top wall of the box body (1) is fixedly connected with a driving mechanism (7), the left side surface of the pressure chamber (5) is communicated with a water inlet pipe (8), the bottom surface of the supporting platform (2) is communicated with a water outlet pipe (9), the inner top wall of the box body (1) is rotatably connected with a transmission mechanism (10), a transmission belt (11) is arranged in the box body (1), the inner bottom wall of the box body (1) is fixedly connected with an air inlet chamber (12), and the upper surface of the air inlet chamber (12) is fixedly connected with the bottom surface of the supporting platform (2), interior diapire fixedly connected with heating piece (13) in air inlet bin (12), inside wall fixedly connected with exhaust bin (14) of box (1), inner wall fixedly connected with horizontal pole (15) in exhaust bin (14), left side fixedly connected with air exhauster (16) of horizontal pole (15), interior roof fixedly connected with stop gear (17) of filter mechanism (4), the equal fixedly connected with sealing member (22) in bottom surface of first aqueduct (6) and exhaust bin (14), and the bottom surface of two sealing members (22) all with the last sliding surface connection of filter mechanism (4).
2. The combined cleaning-free wastewater-free water purifier according to claim 1, characterized in that: the front of box (1) articulates through the round pin axle has two cabinet doors (18), two the equal fixedly connected with handle (19) in front of cabinet door (18), two shutter (20) of right flank fixedly connected with of box (1).
3. The combined cleaning-free wastewater-free water purifier according to claim 1, characterized in that: the upper surface of supporting platform (2) is fixedly connected with rotation axis (21), and filtering mechanism (4) is connected with rotation axis (21) rotation.
4. The combined cleaning-free wastewater-free water purifier according to claim 1, characterized in that: the filter is characterized in that a plurality of activated carbon filters (401) in equidistant circumferential arrays are arranged in the filter mechanism (4), and a first rolling shaft (402) is fixedly connected to the upper surface of the filter mechanism (4).
5. The combined cleaning-free wastewater-free water purifier according to claim 1, characterized in that: the inside sliding connection of actuating mechanism (7) has rack (701), and the left end of rack (701) runs through the inner wall of actuating mechanism (7) and extends to the left of actuating mechanism (7), the right flank fixedly connected with first expanding spring (702) of rack (701), and the inner wall fixed connection of the one end that rack (701) were kept away from in first expanding spring (702) and actuating mechanism (7), the bottom surface intercommunication of actuating mechanism (7) has second aqueduct (703), and second aqueduct (703) keep away from the one end of actuating mechanism (7) and be linked together with pressure chamber (5).
6. The combined cleaning-free wastewater-free water purifier according to claim 5, characterized in that: the outer surface of the transmission mechanism (10) is fixedly connected with a one-way ratchet wheel (1001) matched with the rack (701), the rack (701) is meshed with the one-way ratchet wheel (1001), the bottom surface of the transmission mechanism (10) is fixedly connected with a second rolling shaft (1002), and the first rolling shaft (402) is in transmission connection with the second rolling shaft (1002) through a transmission belt (11).
7. The combined cleaning-free wastewater-free water purifier according to claim 1, characterized in that: the bottom surface fixedly connected with backup pad (1701) of stop gear (17), the top of backup pad (1701) is provided with two gag lever post (1702), and the bottom surface of two gag lever posts (1702) all runs through the upper surface of backup pad (1701) and extends to the below of backup pad (1701), two the equal fixedly connected with fixture block (1703) of surface of gag lever post (1702), two the surface of gag lever post (1702) all overlaps and is equipped with second expanding spring (1704), and the top and the bottom of second expanding spring (1704) respectively with the bottom surface of backup pad (1701) and the upper surface fixed connection of fixture block (1703), two the bottom surface of backup pad (1701) all with the upper surface sliding connection of spacing groove (3).
CN202110353940.9A 2021-04-06 2021-04-06 Combined cleaning-free wastewater-free water purifier Active CN113213647B (en)

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CN113213647B CN113213647B (en) 2022-11-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113813693A (en) * 2021-09-07 2021-12-21 上海珉加汽车技术服务有限公司 Used oil collection device with filtering capability

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007021361A (en) * 2005-07-15 2007-02-01 Kawamoto Pump Mfg Co Ltd Water purifier
CN102228751A (en) * 2011-05-26 2011-11-02 青岛天兰环境工程有限公司 Regenerating method of active carbon filter
CN205974045U (en) * 2016-08-27 2017-02-22 浙江环宏市政建设有限公司 Treatment of municipal wastewater device
CN206881251U (en) * 2017-06-29 2018-01-16 宜昌市凯诺电气有限公司 A kind of water purifier
CN110115868A (en) * 2019-05-15 2019-08-13 王拓 A kind of valve body with filtering function
CN211383998U (en) * 2019-11-13 2020-09-01 张小平 Filtering mechanism convenient to maintain of industrial water purifier
CN112191011A (en) * 2020-10-10 2021-01-08 李田田 A quick filter equipment for sewage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007021361A (en) * 2005-07-15 2007-02-01 Kawamoto Pump Mfg Co Ltd Water purifier
CN102228751A (en) * 2011-05-26 2011-11-02 青岛天兰环境工程有限公司 Regenerating method of active carbon filter
CN205974045U (en) * 2016-08-27 2017-02-22 浙江环宏市政建设有限公司 Treatment of municipal wastewater device
CN206881251U (en) * 2017-06-29 2018-01-16 宜昌市凯诺电气有限公司 A kind of water purifier
CN110115868A (en) * 2019-05-15 2019-08-13 王拓 A kind of valve body with filtering function
CN211383998U (en) * 2019-11-13 2020-09-01 张小平 Filtering mechanism convenient to maintain of industrial water purifier
CN112191011A (en) * 2020-10-10 2021-01-08 李田田 A quick filter equipment for sewage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113813693A (en) * 2021-09-07 2021-12-21 上海珉加汽车技术服务有限公司 Used oil collection device with filtering capability

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