CN103170246A - Three-connected-body super-filter - Google Patents
Three-connected-body super-filter Download PDFInfo
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- CN103170246A CN103170246A CN2013101149409A CN201310114940A CN103170246A CN 103170246 A CN103170246 A CN 103170246A CN 2013101149409 A CN2013101149409 A CN 2013101149409A CN 201310114940 A CN201310114940 A CN 201310114940A CN 103170246 A CN103170246 A CN 103170246A
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Abstract
The invention discloses a three-connected-body super-filter which comprises filtering elements which are connected in series through a connection pipeline system, wherein a first-stage filtering element, a second-stage filtering element and a third-stage filtering element are installed on one same filtering element end cover; three filtering element assembling concave chambers for assembling the first-stage filtering element, the second-stage filtering element and the third-stage filtering element are respectively formed at the lower end surface of the filtering element end cover so as to form a three-connected-body end cover structure; a linear upwards convex type integrated water channel pipe which is also taken as a reinforcing rib and formed into the connection pipeline system is arranged at the top part of the upper end surface of the filtering element end cover; each of the filtering element assembling concave chamber is provided with a water inlet and a water outlet communicated with the integrated water channel pipe; a rapid water intake joint and a rapid water outtake joint are respectively installed at two ends of the integrated water channel pipe; and the first-stage filtering element, the second-stage filtering element, the third-stage filtering element and the filtering element end cover are integrally assembled so as to form a multi-filtering function three-connected-body integrated super-filter filtering structure together.
Description
Technical field
The present invention relates to the water purifier equipment technical field, particularly a kind of ultrafilter with multiple filtration system, specifically a kind of three disjunctor ultrafilters.
Background technology
Along with people's daily life level improve constantly and people to the demand of healthy water, huge variation is also occuring in the drinking equipment that people use.Originally people use bottled water to solve Drinking Water Problem, and bottled water might cause water quality rotten because of the resting period problem, and it installs also unusual trouble of carrying, moreover bottled water also needs the time to change, thereby can not realize continual continuous water supply.People bring into use into the water machine at present, water inlet function continuous water supply, and can be according to the required pure water of output at any time of drinking-water.But not only mounting structure is complicated for ultrafilter common on the existing market, and bulky, and a lot of factories still adopt an iron link plate and utilize the fixing tactic pattern of screw on ultrafilter.If splash water above the ultrafilter of this structure is careless in use, iron link plate and screw will get rusty easily, particularly the time one is grown and also can cause screw to be difficult for dismounting and change, safeguard extremely inconvenience, bring a lot of difficulties to the consumer, simultaneously this structure also can increase cost of labor and Material Cost in process of production virtually, so production efficiency is not high, the tool space that has greatly improved.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned prior art present situation, and provide have simple in structure, easy to assembly, be not easy to get rusty, with low cost and a kind of three disjunctor ultrafilters of being easy to safeguard.
the present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of three disjunctor ultrafilters, comprise the single filter filter core that is connected in series successively by the connecting line system, cascade filtration filter core and three-stage filtration filter core, wherein: the single filter filter core, cascade filtration filter core and three-stage filtration filter core are fixedly mounted on same end cover of filter element, the lower surface of the end cover of filter element single filter filter core that is shaped with respectively arranged in a straight line, the first filter core assembling cavity of cascade filtration filter core and the assembling of three-stage filtration filter core, the second filter core assembling cavity and the 3rd filter core assembling cavity consist of a kind of three Contiuum type end cover structures, and the top, upper surface of this end cover of filter element is shaped with and doubles as reinforcement and consist of the integrated water pipe of convex type on the straight line type of above-mentioned connecting line system, all be shaped with the intake-outlet that is communicated with integrated water pipe in above-mentioned each filter core assembling cavity, the two ends of integrated water pipe are separately installed with into water snap joint and water outlet snap joint, single filter filter core, cascade filtration filter core and three-stage filtration filter core and end cover of filter element are assembled into the ultrafilter filtration of integrally formed a kind of many filtering function three disjunctor integrated forms jointly.
For optimizing technique scheme, Adopts measure also comprises:
Above-mentioned integrated water pipe connects water routes by four roads at least and forms, and four roads connect water routes and comprise that successively being communicated with first of the first filter core assembling cavity water inlet connects the water route and is connected the first filter core assembling cavity delivery port and is connected the water route with second of the second filter core assembling cavity water inlet and is communicated with the second filter core and assemble cavity delivery port and the 3rd filter core and assemble the 3rd of cavity water inlet and be connected water route and the 4th connection water route that is connected the 3rd filter core and assembles the cavity delivery port.
Four above-mentioned roads connect the water route and are formed by the water channel that straight line connects, and are provided with three road pipe plugs in this water channel, and three road pipe plugs are divided into four roads with water channel and connect the water route.
Above-mentioned water inlet snap joint plug-in type is arranged on the water inlet end that integrated water pipe first connects the water route, the front end side face of this water inlet snap joint is shaped with water inlet sealing ring assembling cannelure one, water outlet snap joint plug-in type is arranged on the water side that integrated water pipe the 4th connects the water route, and the front end side face of this water outlet snap joint is shaped with and goes out together waterstop ring mounting ring shape groove.
The water inlet end that above-mentioned integrated water pipe first connects the water route is installed with the prelocalization Ka Gai with water inlet snap joint positioning and locking, this prelocalization card covers and is shaped with front lock pin, and water inlet end and water inlet snap joint are shaped with respectively prelocalization draw-in groove and the prelocalization cannelure that coordinates positioning and locking with front lock pin; The water side that integrated water pipe the 4th connects the water route is installed with the rear locator card lid with water outlet snap joint positioning and locking, after being somebody's turn to do, locator card covers and is shaped with rear lock pin, and water side and water outlet snap joint are shaped with respectively rear locating groove and the rear location cannelure that coordinates positioning and locking with rear lock pin.
Above-mentioned water inlet snap joint and water outlet snap joint are located cannelure after being shaped with respectively three road prelocalization cannelures and three roads.
Above-mentioned single filter filter core is comprised of the one-level filter core bottle shell with an end opening and the polypropylene melt-blown inner core that is arranged in this one-level filter core bottle shell, the openend periphery of one-level filter core bottle shell is shaped with first and connects external screw thread, is shaped with in the first filter core assembling cavity to be connected the first connection internal thread that the external screw thread spiral coordinates with first.
Above-mentioned cascade filtration filter core is comprised of the secondary filter core bottle shell with an end opening and the granular activated carbon inner core that is arranged in this secondary filter core bottle shell; the openend periphery of secondary filter core bottle shell is shaped with second and connects external screw thread, is shaped with in the second filter core assembling cavity to be connected the second connection internal thread that the external screw thread spiral coordinates with second.
Above-mentioned three-stage filtration filter core is comprised of three grades of filter core bottle shells with an end opening and the milipore filter inner core that is arranged in these three grades of filter core bottle shells, the openend periphery of three grades of filter core bottle shells is shaped with the 3rd and connects external screw thread, is shaped with in the 3rd filter core assembling cavity to be connected the 3rd connection internal thread that the external screw thread spiral coordinates with the 3rd.
Above-mentioned one-level filter core bottle shell, secondary filter core bottle shell and being connected is positioned on grade outer peripheral face of filter core bottle shell and connects the external screw thread bottom and the equally distributed vertical raised line of radian such as all be shaped with, and the bottom of one-level filter core bottle shell, secondary filter core bottle shell and three grades of filter core bottle shells all is shaped with the equipped yi word pattern handle of convenient rotation.
compared with prior art, single filter filter core of the present invention, cascade filtration filter core and three-stage filtration filter core are fixedly mounted on a kind of end cover of filter element of three Contiuum types, and be integrated with the integrated water pipe of the traditional connecting line of replacement system on three Contiuum type end cover of filter elements, efficiently solve on market common ultrafilter tradition connecting line system center tap many, installing/dismounting bothers and wastes time and energy, the problem that cost is high, while single filter filter core, cascade filtration filter core and three-stage filtration filter core are fixed by the three integrated assemblings of Contiuum type end cover of filter element, thereby need not screw and the iron link plate is fixed, avoided iron link plate and screw to get rusty easily, safeguard the defective of inconvenience.Advantage of the present invention is: compact conformation, and reasonable in design, assembling speed is fast, detachable maintaining is convenient, can effectively enhance productivity, save artificial and material cost, be suitable for industrialized mass production.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 is structural representation of the present invention.
Reference numeral wherein is: vertical raised line A, yi word pattern handle B, single filter filter core 1, one-level filter core bottle shell 11, first connects external screw thread 11a, polypropylene melt-blown inner core 12, cascade filtration filter core 2, secondary filter core bottle shell 21, second connects external screw thread 21a, granular activated carbon inner core 22, three-stage filtration filter core 3, three grades of filter core bottle shells 31, the 3rd connects external screw thread 31a, milipore filter inner core 32, end cover of filter element 4, integrated water pipe 41, prelocalization draw-in groove 41a, rear locating groove 41b, water inlet snap joint 6, water inlet sealing ring assembling cannelure 6a, prelocalization cannelure 6b, water outlet snap joint 7, go out waterstop ring mounting ring shape groove 7a, rear location cannelure 7b, prelocalization card lid 8, front lock pin 81, rear locator card lid 9, rear lock pin 91.
as shown in Figure 1, a kind of three disjunctor ultrafilters of the present invention, comprise the single filter filter core 1 that is connected in series successively by the connecting line system, cascade filtration filter core 2 and three-stage filtration filter core 3, wherein: single filter filter core 1, cascade filtration filter core 2 and three-stage filtration filter core 3 are fixedly mounted on same end cover of filter element 4, the lower surface of the end cover of filter element 4 single filter filter core 1 that is shaped with respectively arranged in a straight line, the first filter core assembling cavity of cascade filtration filter core 2 and 3 assemblings of three-stage filtration filter core, the second filter core assembling cavity and the 3rd filter core assembling cavity consist of a kind of three Contiuum type end cover structures, and the top, upper surface of this end cover of filter element 4 is shaped with and doubles as reinforcement and consist of the integrated water pipe 41 of convex type on the straight line type of above-mentioned connecting line system, all be shaped with the intake-outlet that is communicated with integrated water pipe 41 in each filter core assembling cavity, the two ends of integrated water pipe 41 are separately installed with into water snap joint 6 and water outlet snap joint 7, single filter filter core 1, cascade filtration filter core 2 and three-stage filtration filter core 3 and end cover of filter element 4 are assembled into the ultrafilter filtration of integrally formed a kind of many filtering function three disjunctor integrated forms jointly.Each function filter core of ultrafilter of the prior art has a style of one's own usually, and between each filter core, by connections such as connecting tube, joints, material requested is many, and assembling speed is slow, and each filter core adopts the iron link plate to coordinate screw fixing in aggregates.This structure installing/dismounting bothers very much, safeguards extremely inconvenience.Simultaneously owing to adopting iron link plate and screw to fix, thereby the time one is long, also gets rusty easily.The present invention concentrates the filter core of single filter filter core 1, cascade filtration filter core 2 and 3 three kinds of different filtering functions of three-stage filtration filter core and is fitted on the end cover of filter element 4 of three Contiuum types, and three disjunctor end cover of filter elements 4 are integrated with the integrated water pipe 41 that replaces traditional connecting line, utilize integrated water pipe 41 directly to realize the serial connection of single filter filter core 1, cascade filtration filter core 2 and three-stage filtration filter core 3, thereby need not to increase the pipe fittings such as extra adapter, joint.The present invention directly utilizes end cover of filter element 4 to realize the fixing equipped of each functional filter element simultaneously, thereby does not also need iron link plate and screw to fix, and has solved existing ultrafilter and has assembled and screw mounting method with the iron link plate.Advantage of the present invention is: simple in structure, easy to assembly, be not easy to get rusty, can effectively enhance productivity, and save artificial and material cost, be conducive to apply.
In embodiment, above-mentioned integrated water pipe 41 connects water routes by four roads at least and forms, and four roads connect water routes and comprise that successively being communicated with first of the first filter core assembling cavity water inlet connects the water route and is connected the first filter core assembling cavity delivery port and is connected the water route with second of the second filter core assembling cavity water inlet and is communicated with the second filter core and assemble cavity delivery port and the 3rd filter core and assemble the 3rd of cavity water inlet and be connected water route and the 4th connection water route that is connected the 3rd filter core and assembles the cavity delivery port.
In embodiment, four above-mentioned roads connect the water route and are formed by the water channel that straight line connects, and are provided with three road pipe plugs in this water channel, and three road pipe plugs are divided into four roads with water channel and connect the water route.Water channel is divided into four roads by pipe plug and connects the water route, and per pass connects the radial hole that all is shaped with on the water route for connection.Wherein: first connects and to be shaped with a radial hole in the water route to be communicated with the first filter core assembling cavity water inlet, in like manner the 4th connects the water route and also is shaped with a radial hole in order to being communicated with the 3rd filter core assembling cavity delivery port, and second connects water route and the 3rd connects in the water route and all be shaped with two radial holes.
In embodiment, as shown in Figure 1, water inlet snap joint 6 plug-in types are arranged on the water inlet end that integrated water pipe 41 first connects the water route, the front end side face of this water inlet snap joint 6 is shaped with water inlet sealing ring assembling cannelure 6a one, water outlet snap joint 7 plug-in types are arranged on the water side that integrated water pipe 41 the 4th connects the water route, and the front end side face of this water outlet snap joint 7 is shaped with and goes out together waterstop ring mounting ring shape groove 7a.Water inlet sealing ring assembling cannelure 6a and go out waterstop ring mounting ring shape groove 7a and be mainly used in the fitting tight circle, sealing ring can guarantee to prevent from the sealing that connects leaking.
In embodiment, the water inlet end that integrated water pipe 41 first connects the water route is installed with the prelocalization card lid 8 with water inlet snap joint 6 positioning and lockings, be shaped with front lock pin 81 on this prelocalization card lid 8, water inlet end and water inlet snap joint 6 are shaped with respectively prelocalization draw-in groove 41a and the prelocalization cannelure 6b that coordinates positioning and locking with front lock pin 81; The water side that integrated water pipe 41 the 4th connects the water route is installed with the rear locator card lid 9 with water outlet snap joint 7 positioning and lockings, should be shaped with rear lock pin 91 on rear locator card lid 9, water side and water outlet snap joint 7 are shaped with respectively rear locating groove 41b and the rear location cannelure 7b that coordinates positioning and locking with rear lock pin 91.Plug-in type of the present invention equipped water inlet snap joint 6 and water outlet snap joint 7, plug-in type has convenient and fast connection characteristics.
In embodiment, above-mentioned water inlet snap joint 6 and water outlet snap joint 7 are shaped with respectively location cannelure 7b behind three road prelocalization cannelure 6b and three roads.
In embodiment, above-mentioned single filter filter core 1 is comprised of the one-level filter core bottle shell 11 with an end opening and the polypropylene melt-blown inner cores 12 that are arranged in this one-level filter core bottle shell 11, the openend periphery of one-level filter core bottle shell 11 is shaped with first and connects external screw thread 11a, is shaped with in the first filter core assembling cavity to be connected the first connection internal thread that external screw thread 11a spiral coordinates with first.
In embodiment; above-mentioned cascade filtration filter core 2 is comprised of the secondary filter core bottle shell 21 with an end opening and the granular activated carbon inner cores 22 that are arranged in this secondary filter core bottle shell 21; the openend periphery of secondary filter core bottle shell 21 is shaped with second and connects external screw thread 21a, is shaped with in the second filter core assembling cavity to be connected the second connection internal thread that external screw thread 21a spiral coordinates with second.
In embodiment, above-mentioned three-stage filtration filter core 3 is comprised of the three grades of filter core bottle shells 31 with an end opening and the milipore filter inner cores 32 that are arranged in these three grades of filter core bottle shells 31, the openend periphery of three grades of filter core bottle shells 31 is shaped with the 3rd and connects external screw thread 31a, is shaped with in the 3rd filter core assembling cavity to be connected the 3rd connection internal thread that external screw thread 31a spiral coordinates with the 3rd.Single filter filter core 1 of the present invention, cascade filtration filter core 2 and three-stage filtration filter core 3 all adopt and are threaded fixingly, and are pressed with the filter core sealing ring that prevents from connecting leakage in filter core equipped.
One-level filter core bottle shell 11 of the present invention, secondary filter core bottle shell 21 and being connected is positioned on grade outer peripheral face of filter core bottle shell 31 and connects the external screw thread bottom and the equally distributed vertical raised line A of radian such as all be shaped with, and the bottom of one-level filter core bottle shell 11, secondary filter core bottle shell 21 and three grades of filter core bottle shells 31 all is shaped with the equipped yi word pattern handle B of convenient rotation.
Claims (10)
1. disjunctor ultrafilter, comprise the single filter filter core (1) that is connected in series successively by the connecting line system, cascade filtration filter core (2) and three-stage filtration filter core (3), it is characterized in that: described single filter filter core (1), cascade filtration filter core (2) and three-stage filtration filter core (3) are fixedly mounted on same end cover of filter element (4), the lower surface of described end cover of filter element (4) the single filter filter core (1) that is shaped with respectively arranged in a straight line, the first filter core assembling cavity of cascade filtration filter core (2) and three-stage filtration filter core (3) assembling, the second filter core assembling cavity and the 3rd filter core assembling cavity consist of a kind of three Contiuum type end cover structures, and the top, upper surface of this end cover of filter element (4) is shaped with and doubles as reinforcement and consist of the integrated water pipe of convex type (41) on the straight line type of above-mentioned connecting line system, all be shaped with the intake-outlet that is communicated with integrated water pipe (41) in described each filter core assembling cavity, the two ends of described integrated water pipe (41) are separately installed with into water snap joint (6) and water outlet snap joint (7), described single filter filter core (1), cascade filtration filter core (2) and three-stage filtration filter core (3) and end cover of filter element (4) are assembled into the ultrafilter filtration of integrally formed a kind of many filtering function three disjunctor integrated forms jointly.
2. a kind of three disjunctor ultrafilters according to claim 1, it is characterized in that: described integrated water pipe (41) connects water routes by four roads at least and forms, and described four roads connect water routes and comprise that successively being communicated with first of the first filter core assembling cavity water inlet connects the water route and is connected the first filter core assembling cavity delivery port and is connected the water route with second of the second filter core assembling cavity water inlet and is communicated with the second filter core and assemble cavity delivery port and the 3rd filter core and assemble the 3rd of cavity water inlet and be connected water route and the 4th connection water route that is connected the 3rd filter core and assembles the cavity delivery port.
3. a kind of three disjunctor ultrafilters according to claim 2 is characterized in that: described four roads connect water routes and are formed by the water channel that straight line connects, and are provided with three road pipe plugs in this water channel, and described three road pipe plugs are divided into four connection water routes, roads with water channel.
4. a kind of three disjunctor ultrafilters according to claim 3, it is characterized in that: described water inlet snap joint (6) plug-in type is arranged on the water inlet end that integrated water pipe (41) first connects the water route, the front end side face of this water inlet snap joint (6) is shaped with water inlet sealing ring assembling cannelure (6a) one, described water outlet snap joint (7) plug-in type is arranged on the water side that integrated water pipe (41) the 4th connects the water route, and the front end side face of this water outlet snap joint (7) is shaped with and goes out together waterstop ring mounting ring shape groove (7a).
5. a kind of three disjunctor ultrafilters according to claim 4, it is characterized in that: the water inlet end that described integrated water pipe (41) first connects the water route is installed with the prelocalization Ka Gai (8) with water inlet snap joint (6) positioning and locking, be shaped with front lock pin (81) on this prelocalization Ka Gai (8), described water inlet end and water inlet snap joint (6) are shaped with respectively prelocalization draw-in groove (41a) and the prelocalization cannelure (6b) that coordinates positioning and locking with front lock pin (81); The water side that described integrated water pipe (41) the 4th connects the water route is installed with the rear locator card lid (9) with water outlet snap joint (7) positioning and locking, should be shaped with rear lock pin (91) on rear locator card lid (9), described water side and water outlet snap joint (7) are shaped with respectively rear locating groove (41b) and the rear location cannelure (7b) that coordinates positioning and locking with rear lock pin (91).
6. a kind of three disjunctor ultrafilters according to claim 5, it is characterized in that: described water inlet snap joint (6) and water outlet snap joint (7) are located cannelure (7b) after being shaped with respectively three road prelocalization cannelures (6b) and three roads.
7. a kind of three disjunctor ultrafilters according to claim 6, it is characterized in that: described single filter filter core (1) is comprised of the one-level filter core bottle shell (11) with an end opening and the polypropylene melt-blown inner core (12) that is arranged in this one-level filter core bottle shell (11), the openend periphery of described one-level filter core bottle shell (11) is shaped with first and connects external screw thread (11a), is shaped with in described the first filter core assembling cavity to be connected the first connection internal thread that external screw thread (11a) spiral coordinates with first.
8. a kind of three disjunctor ultrafilters according to claim 7; it is characterized in that: described cascade filtration filter core (2) is comprised of the secondary filter core bottle shell (21) with an end opening and the granular activated carbon inner core (22) that is arranged in this secondary filter core bottle shell (21); the openend periphery of described secondary filter core bottle shell (21) is shaped with second and connects external screw thread (21a), is shaped with in described the second filter core assembling cavity to be connected the second connection internal thread that external screw thread (21a) spiral coordinates with second.
9. a kind of three disjunctor ultrafilters according to claim 8, it is characterized in that: described three-stage filtration filter core (3) is comprised of the three grades of filter core bottle shells (31) with an end opening and the milipore filter inner core (32) that is arranged in these three grades of filter core bottle shells (31), the openend periphery of described three grades of filter core bottle shells (31) is shaped with the 3rd and connects external screw thread (31a), is shaped with in described the 3rd filter core assembling cavity to be connected the 3rd connection internal thread that external screw thread (31a) spiral coordinates with the 3rd.
10. a kind of three disjunctor ultrafilters according to claim 9, it is characterized in that: described one-level filter core bottle shell (11), secondary filter core bottle shell (21) and being connected is positioned on grade outer peripheral face of filter core bottle shell (31) and connects the external screw thread bottom and all be shaped with and wait the equally distributed vertical raised line of radian (A), and the bottom of described one-level filter core bottle shell (11), secondary filter core bottle shell (21) and three grades of filter core bottle shells (31) all is shaped with the convenient yi word pattern handle (B) that is equipped with that rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114940.9A CN103170246B (en) | 2013-04-04 | 2013-04-04 | Three-connected-body super-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114940.9A CN103170246B (en) | 2013-04-04 | 2013-04-04 | Three-connected-body super-filter |
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| CN103170246A true CN103170246A (en) | 2013-06-26 |
| CN103170246B CN103170246B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310114940.9A Expired - Fee Related CN103170246B (en) | 2013-04-04 | 2013-04-04 | Three-connected-body super-filter |
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| Country | Link |
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| CN (1) | CN103170246B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105840942A (en) * | 2016-05-31 | 2016-08-10 | 海南立昇净水科技实业有限公司 | Water channel module for water purifier |
| CN105964042A (en) * | 2016-07-11 | 2016-09-28 | 佛山市美的清湖净水设备有限公司 | Water route board and water purifier |
| CN108341505A (en) * | 2018-02-02 | 2018-07-31 | 中山市柠檬环境科技有限公司 | Highly integrated small-sized water purifier |
| CN108905343A (en) * | 2018-07-17 | 2018-11-30 | 神农架时珍水结构研究所有限公司 | Communication means and Multistage filtering device |
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| CN301999798S (en) * | 2012-01-31 | 2012-07-18 | 浙江沁园水处理科技有限公司 | Three-piece ultrafiltration machine filter element |
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| CN201692728U (en) * | 2010-03-26 | 2011-01-05 | 宁波灏钻科技有限公司 | Conjoined cover and filter provided with the conjoined cover |
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| CN105840942A (en) * | 2016-05-31 | 2016-08-10 | 海南立昇净水科技实业有限公司 | Water channel module for water purifier |
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| CN108341505B (en) * | 2018-02-02 | 2020-09-15 | 中山市柠檬环境科技有限公司 | Highly integrated small-sized water purifier |
| CN108905343A (en) * | 2018-07-17 | 2018-11-30 | 神农架时珍水结构研究所有限公司 | Communication means and Multistage filtering device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103170246B (en) | 2015-04-22 |
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