CN206955690U - A kind of filter core slotting soon using female hanging-connecting - Google Patents
A kind of filter core slotting soon using female hanging-connecting Download PDFInfo
- Publication number
- CN206955690U CN206955690U CN201720204173.4U CN201720204173U CN206955690U CN 206955690 U CN206955690 U CN 206955690U CN 201720204173 U CN201720204173 U CN 201720204173U CN 206955690 U CN206955690 U CN 206955690U
- Authority
- CN
- China
- Prior art keywords
- filter core
- female
- filter
- water
- inlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
It the utility model is related to a kind of filter core slotting soon using female hanging-connecting,Filter core is divided into filter core head and filter element shell,Same one end of filter core head side wall is provided with the water inlet pipe and water outlet pipe female connected using female mode,Filter element body is provided with filter element shell,Filter element body is connected by fixed mechanism with filter core head,The middle part of filter element body forms hollow filtering exhalant canal,Filtrate chamber is formed between the outer wall of filter element body and the inwall of filter element shell,Filter element body carries filter medium,Filtering exhalant canal connects with the outlet pipe female on filter core head,Filtrate chamber connects with the water inlet pipe female on filter core head,Water enters filtrate chamber from water inlet pipe female and exported after filter medium enters filtering exhalant canal from outlet pipe female,Water inlet pipe and water outlet pipe female need to only be inserted to the sealed connection that filter core and plate of water route can be achieved in the adapter of filter core water pipe when the filter core is installed.
Description
Technical field
Purifier field is the utility model is related to, is specifically related to a kind of filter core slotting soon using female hanging-connecting.
Background technology
With hygienic requirements more and more higher of the people to drinking water, water purifier is in a variety of occasions（Such as family, enterprise
With some public places of entertainment etc.）It is middle using more and more extensive, in order to reach the effect of optimal filtering, purification, it will usually in water purification
The inside of device installs multiple filter cores and water is carried out into multiple times of filtration and purified treatment, is flowed into water tank stores for people afterwards
Drink.Generally use grafting between waterpipe jointing or adapter on the water inlet pipe and water outlet pipe and plate of water route of the filter core of existing water purifier
Mode connects, between the two be typically using sealing ring by the way of come realize seal, during filter core is changed sealing ring by
Abrasion often occurs in unbalance stress, it is easy to the generation for phenomena such as causing leak；And horizontal direction needs auxiliary device
It is stable.
As Chinese Publication No. CN204671999U discloses a kind of direct insert type filtering device and purifier, the filter core
Water inlet pipe and water outlet pipe is in plumbness with plate of water route, but in this case, the water inlet pipe and water outlet pipe on filter core is inserted into the filter core of plate of water route
When water pipe is taken over, the frictional resistance very little between water inlet pipe and water outlet pipe plug and the adapter of filter core water pipe, easily exist and come off and because of external force
The problems such as effect is thrown out of；In the presence of using limitation, in order to meet the installation of filter core, therefore, prior art provides disclosure again
A kind of water purifier, Chinese Publication No. CN105032022A, including plate of water route and filter core, the water purifier also include handle,
The handle is the semi-closed structure of the bending bar shaped provided with an opening, and when handle goes to the second place, the handle is to described
Filter core applies one away from the power of the plate of water route to make the filter core consolidate away from the plate of water route and departing from the plate of water route
It is fixed.To reach effectively locking filter core, the effect for preventing filter core to be thrown out of by external force effect.
According to the development need of purifier, it is necessary to the further improvement of prior art.
Utility model content
The technical problem that the utility model solves is to provide a kind of filter core slotting soon using female hanging-connecting, with solution
The shortcomings that in certainly above-mentioned background technology.
The technical problem that the utility model solves is realized using following technical scheme：
A kind of filter core slotting soon using female hanging-connecting, filter core are divided into filter core head and filter element shell, it is characterised in that
Same one end of filter core head side wall is provided with the water inlet pipe and water outlet pipe female connected using female mode, water inlet pipe and water outlet pipe female
Depending on several ways according to the Inlet and outlet water water route of filter core, water inlet pipe and water outlet pipe female is distinguished a pair with the Inlet and outlet water water route inside filter core
One connection；
Filter element body is provided with filter element shell, filter element body is connected by fixed mechanism with filter core head, filter element body
Middle part forms hollow filtering exhalant canal, and filtrate chamber is formed between the outer wall of filter element body and the inwall of filter element shell, filter
Core body carries filter medium, and filtering exhalant canal connects with the outlet pipe female on filter core head, filtrate chamber and filter core
Water inlet pipe female connection on head, water enters filtrate chamber and entered by filter medium from water inlet pipe female to be filtered out
Exported after aquaporin from outlet pipe female.
Further, the axis of the water inlet pipe and water outlet pipe female and filter element body axis out of plumb, water inlet pipe and water outlet pipe female peace
Dress has an inclination angle tilted down on direction, and filter core head is provided with guide runner corresponding with plate of water route upper mounted plate, in plate of water route
Inserted link be inserted into water inlet pipe and water outlet pipe female after, fixed plate is fastened on filter core head.
Further, the angle at the inclination angle tilted down is within 45 degree.
Further, the filter element body includes solid active carbon filter core and PP cotton filter cores, solid active carbon filter core and PP cottons
Connected between filter core by supporting plate, the bottom of PP cotton filter cores is connected by base with filter element shell bottom, during PP cotton filter cores carry
Empty filtering exhalant canal, opening is carried on supporting plate, water entered from water inlet pipe female into filtrate chamber through PP cotton filter cores
Aquaporin is filtered out to export from outlet pipe female after the filtering of solid active carbon filter core.
Further, the filter element body is hollow RO membrane cartridges, and the hollow channel of RO membrane cartridges is filtering exhalant canal,
Filtrate chamber is formed between the outer wall of RO membrane cartridges and the inwall of filter element shell, water passes through from water inlet pipe female into filtrate chamber
The bottom of RO membrane cartridges exports after entering filtering exhalant canal from outlet pipe female.
Further, the filter element body is hollow active carbon filter core, and the central cavity of hollow active carbon filter core is to filter out
Aquaporin, water is after water inlet pipe female enters filtering exhalant canal into filtrate chamber through the periphery of hollow active carbon filter core
Exported from outlet pipe female.
Further, the angle at the inclination angle tilted down is within 25 degree.
Further, the angle at the inclination angle tilted down is 2 degree.
Further, the fixed mechanism include the annular sleeve being connected with filter core head at the top of the filter element shell and with filter
The flange of core bodies top connection, flange extend into annular sleeve and engaged with annular sleeve.
Further, the opening of water inlet pipe and water outlet pipe female is provided with spacing ring, and the bosom of water inlet pipe and water outlet pipe female is provided with
Double seal ring mounting groove, Double seal ring mounting groove is interior to be provided with least two sealing rings, and spacing ring is flare openings structure.
The beneficial effects of the utility model are：Filter core head is provided with the water inlet pipe and water outlet pipe female connected using female mode
It can make that filter cartridge construction is compacter, and associative perception is more preferable, be readily produced, and filer element strength is readily obtained guarantee.
Water inlet pipe and water outlet pipe female need to only be inserted to the adapter of filter core water pipe when the filter core is installed filter core and plate of water route can be achieved
Sealed connection, is provided with filter element body in filter element shell, filter element body is connected by fixed mechanism with filter core head, filter element body
Middle part form hollow filtering exhalant canal, form filtrate chamber between the outer wall of filter element body and the inwall of filter element shell,
Filter element body carries filter medium, and filtering exhalant canal connects with the outlet pipe female on filter core head, filtrate chamber and filter
Water inlet pipe female connection on core head, water enter filtrate chamber from water inlet pipe female and enter filtering by filter medium
Exported after exhalant canal from outlet pipe female, filter element body can carry out filtering with different filter mediums according to the difference of water quality
The replacing of core body, the flexibility ratio used are high.
And the axis of water inlet pipe and water outlet pipe female and filter element body axis out of plumb, on water inlet pipe and water outlet pipe female installation direction
There is an inclination angle tilted down, filter core head is provided with guide runner corresponding with plate of water route upper mounted plate, water inlet pipe and water outlet pipe female
Opening is provided with spacing ring, and the bosom of water inlet pipe and water outlet pipe female is provided with Double seal ring mounting groove, in Double seal ring mounting groove
Provided with least two sealing rings, spacing ring is flare openings structure, and the inserted link in plate of water route is inserted into water inlet pipe and water outlet pipe female
After interior, spigot seal is formed by spacing ring and sealing ring and connected, now the incline direction of inserted link and angle and water inlet pipe and water outlet pipe
The incline direction of female is consistent with angle, and because fixed plate can rotate relative to plate of water route, now pushing fixed plate will be fixed
Plate is fastened on the installation that filter core and plate of water route can be completed on filter core head, and assembles firm, water inlet pipe and water outlet pipe female and filter core
Water pipe adapter between form hook structure, filter core is difficult for drop-off, so, it is possible to reduce to maintenance level direction auxiliary device according to
Rely or remove the auxiliary device in maintenance level direction.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model；
Fig. 2 is the schematic diagram of the utility model embodiment 1；
Fig. 2 a are the schematic cross-section of 1 another angle of the utility model embodiment
Fig. 3 is the schematic diagram of the utility model embodiment 2；
Fig. 4 is the schematic diagram of the utility model embodiment 3；
Fig. 4 c are the schematic cross-section of 1 another angle of the utility model embodiment；
Fig. 5 is the schematic diagram of the utility model fixed mechanism；
Fig. 6 is the front schematic view of the utility model filter core；
Fig. 7 is the assembling schematic diagram of the utility model filter core and plate of water route；
Fig. 8 is the schematic internal view of the utility model water inlet pipe and water outlet pipe female；
Fig. 9 is the schematic diagram of plate of water route;
Figure 10 is the schematic cross-section on the utility model filter core head.
Embodiment
As shown in Figures 1 to 10, a kind of filter core slotting soon using female hanging-connecting, filter core are divided into filter core head 1 and filter
Core shell body 2, same one end of the side wall of filter core head 1 are provided with the water inlet pipe and water outlet pipe female 3 connected using female mode, Inlet and outlet water
3 numbers of pipe female are depending on the way in the Inlet and outlet water water route of filter core, water inlet pipe and water outlet pipe female 3 and the Inlet and outlet water inside filter core
Distinguish one-to-one connection in water route；
Filter element body 4 is provided with filter element shell 2, filter element body 4 is connected by fixed mechanism with filter core head 1, filter core sheet
The middle part of body 4 forms hollow filtering exhalant canal, and it is empty that filtering is formed between the outer wall of filter element body and the inwall of filter element shell 2
Chamber, filter element body 4 carry filter medium, and filtering exhalant canal connects with the outlet pipe female on filter core head 1, filtrate chamber
Connected with the water inlet pipe female on filter core head 1, water enters filtrate chamber from water inlet pipe female and entered by filter medium
Exported after entering to filter exhalant canal from outlet pipe female.
The axis of water inlet pipe and water outlet pipe female 3 and the axis out of plumb of filter element body 4, on the installation direction of water inlet pipe and water outlet pipe female 3
There is an inclination angle b tilted down, filter core head 1 is provided with female with 5 upper mounted plate of plate of water route, 51 corresponding guide runner 6, water inlet pipe and water outlet pipe
The opening of plug 3 is provided with spacing ring 31, and the bosom of water inlet pipe and water outlet pipe female 3 is provided with Double seal ring mounting groove, double containment
At least two sealing rings 32 are provided with circle mounting groove, and spacing ring 31 is flare openings structure, and the inserted link 52 in plate of water route 5 inserts
To after in water inlet pipe and water outlet pipe female 3, spigot seal is formed by spacing ring 31 and sealing ring 32 and connected, now inserted link 52 inclines
Tilted direction and angle are consistent with the incline direction and angle of water inlet pipe and water outlet pipe female 3, because fixed plate 51 can be relative to plate of water route 5
Rotate, now push fixed plate 51 and fixed plate 51 is fastened on to the installation that filter core and plate of water route 5 can be completed on filter core head 1,
And assembling is firm.
Wherein, the angle for the inclination angle b that the installation direction of water inlet pipe and water outlet pipe female 3 tilts down is within 45 degree, and preferably 25
Within degree, more preferably 5 degree, 2 degree.
The utility model carries three kinds of different filter element bodies, and three embodiments are enumerated according to filter element body, specific as follows：
Embodiment 1, by taking first order composite filter element as an example
Such as Fig. 2, shown in Fig. 2 a, filter element body 4 includes solid active carbon filter core 41a and PP cotton filter cores 42a, solid activated carbon
Connected between filter core 41a and PP cotton filter core 42a by supporting plate 43a, PP cotton filter cores 42a bottom passes through base 44a and filter-core shell
The bottom of body 2 connects, and PP cotton filter cores 42a filters out aquaporin-4 5a with hollow, carries opening on supporting plate 43a, and water is from water inlet pipe
Female 11a filters out aquaporin-4 5a through PP cotton filter cores 42a entrance into filtrate chamber 46a and passes through solid active carbon filter core 41a
Exported after filtering from outlet pipe female 12a.
Embodiment 2, exemplified by the RO counter-infiltration filter cores of the second level
As shown in figure 3, filter element body is that filtering water outlet is led to for the hollow channel of hollow RO membrane cartridges 41b, RO membrane cartridge
Filtrate chamber 43b is formed between road 42b, RO membrane cartridge 41b outer wall and the inwall of filter element shell 2, water is from water inlet pipe female
11b is led into filtrate chamber after RO membrane cartridges 41b bottom enters and filters out aquaporin-4 2b from outlet pipe female 12b
Go out.
Embodiment 3, exemplified by third level post active carbon filter core
Such as Fig. 4, shown in Fig. 4 c, filter element body 4 is hollow active carbon filter core 41c, and hollow active carbon filter core 41c middle part is empty
Chamber is to filter out aquaporin-4 2c, and water is outer through hollow active carbon filter core 41c from water inlet pipe female 11c into filtrate chamber 43c
Enclose to enter to filter out and exported from outlet pipe female 12c after aquaporin-4 2c.
Further, as shown in figure 5, for the ease of fixed filter element body 4, fixed mechanism is included positioned at the top of filter element shell 2
The annular sleeve 13 being connected with filter core head 1 and the flange 40 being connected with the top of filter element body 4, flange 40 extend into annular sleeve 13
Interior to be engaged with annular sleeve 13, filter core head 1 can open, and facilitate filter element body 4 to be taken out out of filter element shell 2.
Water inlet pipe and water outlet pipe female 3 need to only be inserted the adapter of filter core water pipe and filter core and plate of water route can be achieved by the filter core when installing
Sealed connection, is provided with filter element body 4 in filter element shell 2, filter element body 4 is connected by fixed mechanism with filter core head 1, filter core
The middle part of body 4 forms hollow filtering exhalant canal, and filtering is formed between the outer wall of filter element body and the inwall of filter element shell
Cavity, filter element body carry filter medium, and filtering exhalant canal connects with the outlet pipe female on filter core head, filtrate chamber
Connected with the water inlet pipe female on filter core head, water enters filtrate chamber from water inlet pipe female and entered by filter medium
Exported after filtering exhalant canal from outlet pipe female, filter element body 4 can carry out carrying different filterings according to the difference of water quality
The replacing of medium filter element body, the flexibility ratio used is high, and the axis of water inlet pipe and water outlet pipe female 3 and the axis of filter element body 4 are not
Vertically, there is an inclination angle tilted down on the installation direction of water inlet pipe and water outlet pipe female 3.
Filter core head 1 is provided with and 5 upper mounted plate of plate of water route, 51 corresponding guide runner 6, the opening of water inlet pipe and water outlet pipe female 3
Provided with spacing ring 31, the bosom of water inlet pipe and water outlet pipe female 3 is provided with Double seal ring mounting groove, is provided with Double seal ring mounting groove
At least two sealing rings 32, spacing ring 31 are flare openings structure, and the inserted link 52 in plate of water route 5 is inserted into water inlet pipe and water outlet pipe female plug
After in first 3, spigot seal is formed by spacing ring 31 and sealing ring 32 and connected, now the incline direction of inserted link 52 and angle with
The incline direction of water inlet pipe and water outlet pipe female 3 is consistent with angle, because fixed plate 51 can rotate relative to plate of water route 5, now pushes
Fixed plate 51 is fastened on the installation that filter core and plate of water route 5 can be completed on filter core head 1 by fixed plate 51, and assembles firmly, enters
Hook structure is formed between outlet pipe female and the adapter of filter core water pipe, filter core is difficult for drop-off, improves the efficiency of filtering.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (10)
1. a kind of filter core slotting soon using female hanging-connecting, filter core is divided into filter core head and filter element shell, it is characterised in that filter
Same one end of core head side wall is provided with the water inlet pipe and water outlet pipe female connected using female mode, water inlet pipe and water outlet pipe female number
Depending on the way in the Inlet and outlet water water route of filter core, water inlet pipe and water outlet pipe female and the Inlet and outlet water water route difference inside filter core are one-to-one
Connection；
Filter element body is provided with filter element shell, filter element body is connected by fixed mechanism with filter core head, the middle part of filter element body
Hollow filtering exhalant canal is formed, filtrate chamber, filter core sheet are formed between the outer wall of filter element body and the inwall of filter element shell
Body carries filter medium, and filtering exhalant canal connects with the outlet pipe female on filter core head, filtrate chamber and filter core head
On water inlet pipe female connection, water from water inlet pipe female enter filtrate chamber and by filter medium enter filtering water outlet lead to
Exported behind road from outlet pipe female.
A kind of 2. filter core slotting soon using female hanging-connecting according to claim 1, it is characterised in that the Inlet and outlet water
The axis of pipe female and filter element body axis out of plumb, have on water inlet pipe and water outlet pipe female installation direction one tilt down incline
Angle, filter core head are provided with guide runner corresponding with plate of water route upper mounted plate, and the inserted link in plate of water route is inserted into water inlet pipe and water outlet pipe female plug
After in head, fixed plate is fastened on filter core head.
3. a kind of filter core slotting soon using female hanging-connecting according to claim 2, it is characterised in that tilt down
The angle at inclination angle is within 45 degree.
A kind of 4. filter core slotting soon using female hanging-connecting according to claim 3, it is characterised in that the filter core sheet
Body includes solid active carbon filter core and PP cotton filter cores, is connected between solid active carbon filter core and PP cotton filter core by supporting plate, PP cottons
The bottom of filter core is connected by base with filter element shell bottom, and PP cotton filter cores carry hollow filtering exhalant canal, band on supporting plate
There is opening, water enters filtrate chamber from water inlet pipe female and passes through solid active carbon filtration into filtering exhalant canal through PP cotton filter cores
Exported after core filtering from outlet pipe female.
A kind of 5. filter core slotting soon using female hanging-connecting according to claim 3, it is characterised in that the filter core sheet
Body is hollow RO membrane cartridges, and the hollow channel of RO membrane cartridges is to filter exhalant canal, the outer wall and filter element shell of RO membrane cartridges
Inwall between form filtrate chamber, water enters filtering from water inlet pipe female into bottom of the filtrate chamber through RO membrane cartridges
Exported after exhalant canal from outlet pipe female.
A kind of 6. filter core slotting soon using female hanging-connecting according to claim 3, it is characterised in that the filter core sheet
Body is hollow active carbon filter core, and the central cavity of hollow active carbon filter core is filtering exhalant canal, and water enters from water inlet pipe female
Enter filtrate chamber to export from outlet pipe female after the periphery of hollow active carbon filter core enters filtering exhalant canal.
7. a kind of filter core slotting soon using female hanging-connecting according to claim 3, it is characterised in that tilt down
The angle at inclination angle is within 25 degree.
8. a kind of filter core slotting soon using female hanging-connecting according to claim 3, it is characterised in that tilt down
The angle at inclination angle is 2 degree.
A kind of 9. filter core slotting soon using female hanging-connecting according to claim 1, it is characterised in that the fixed machine
Structure includes the annular sleeve being connected at the top of filter element shell with filter core head and the flange with being connected at the top of filter element body, flange
It extend into annular sleeve and is engaged with annular sleeve.
A kind of 10. filter core slotting soon using female hanging-connecting according to claim 1, it is characterised in that water inlet pipe and water outlet pipe
The opening of female is provided with spacing ring, and the bosom of water inlet pipe and water outlet pipe female is provided with Double seal ring mounting groove, Double seal ring
At least two sealing rings are provided with mounting groove, spacing ring is flare openings structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720204173.4U CN206955690U (en) | 2017-03-03 | 2017-03-03 | A kind of filter core slotting soon using female hanging-connecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720204173.4U CN206955690U (en) | 2017-03-03 | 2017-03-03 | A kind of filter core slotting soon using female hanging-connecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206955690U true CN206955690U (en) | 2018-02-02 |
Family
ID=61377246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720204173.4U Expired - Fee Related CN206955690U (en) | 2017-03-03 | 2017-03-03 | A kind of filter core slotting soon using female hanging-connecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206955690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055671A (en) * | 2017-03-03 | 2017-08-18 | 江西书源科技有限公司 | A kind of slotting soon filter core of use female hanging-connecting |
-
2017
- 2017-03-03 CN CN201720204173.4U patent/CN206955690U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055671A (en) * | 2017-03-03 | 2017-08-18 | 江西书源科技有限公司 | A kind of slotting soon filter core of use female hanging-connecting |
| CN107055671B (en) * | 2017-03-03 | 2023-05-12 | 江西书源科技有限公司 | Adopt female plug to articulate formula cartridge of inserting soon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209522671U (en) | Composite filter element component | |
| CN205528039U (en) | Ordinary pressure pipeline formula purifier | |
| CN206580575U (en) | A kind of filter element of water purifier mounting structure of convenient disassembly | |
| CN206955690U (en) | A kind of filter core slotting soon using female hanging-connecting | |
| CN209307046U (en) | The flow passage structure of composite filter element component | |
| CN207085507U (en) | A kind of direct insertion filter element of water purifier | |
| CN206621868U (en) | Element kit and there is its water purifier | |
| CN211871582U (en) | Water purification machine and composite filter element thereof | |
| CN107055671A (en) | A kind of slotting soon filter core of use female hanging-connecting | |
| CN209661364U (en) | Composite filter element structure | |
| CN207933104U (en) | A kind of water purification catridge | |
| CN208038156U (en) | Reverse osmosis water purifier | |
| CN207102352U (en) | A kind of hollow fiber ultrafiltration membrane group filter core | |
| CN208632249U (en) | A kind of water purifier integrates composite filter element and water purifier | |
| CN201735232U (en) | Water treatment filter flask | |
| CN212532499U (en) | Integrated filter element structure | |
| CN206543458U (en) | The push-in filter core that a kind of use female mode is connected | |
| CN206444289U (en) | Element kit and the water purifier with it | |
| CN209322575U (en) | A kind of composite filter element for integrating a variety of filter cores | |
| CN208308549U (en) | Composite filter element and water purifier | |
| CN207891148U (en) | A kind of Combined filter element of Two In and Two Out | |
| CN206108971U (en) | Active carbon filtration core structure | |
| CN206872445U (en) | A kind of filter element of water purifier and the attachment structure in water route | |
| CN206580656U (en) | A kind of mounting structure of filter element of water purifier | |
| CN211799225U (en) | Multistage filtering filter cartridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |