CN109721177A - Composite filter element and water purifier - Google Patents
Composite filter element and water purifier Download PDFInfo
- Publication number
- CN109721177A CN109721177A CN201711052516.0A CN201711052516A CN109721177A CN 109721177 A CN109721177 A CN 109721177A CN 201711052516 A CN201711052516 A CN 201711052516A CN 109721177 A CN109721177 A CN 109721177A
- Authority
- CN
- China
- Prior art keywords
- connector
- sealing ring
- filter core
- filter element
- composite filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 239000002131 composite material Substances 0.000 title claims abstract description 65
- 238000007789 sealing Methods 0.000 claims abstract description 214
- 230000013011 mating Effects 0.000 claims abstract description 19
- 210000003205 muscle Anatomy 0.000 claims description 17
- 210000001503 joint Anatomy 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229920000604 Polyethylene Glycol 200 Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The present invention discloses a kind of composite filter element and water purifier, wherein the composite filter element includes: filter housing, is equipped with water inlet, water outlet and the first connector, and the inner wall of the first connector is convexly equipped with the first annular abutting part along its circumferentially extending;Element kit is installed in filter housing, and element kit includes primary filter core and the secondary filter core that is installed in primary filter core, and primary filter core is equipped with and is connected to the water inlet end of secondary filter core and protrudes into the second connector in the first connector;Sealing ring is sheathed on the second connector, and is sealed against with first annular abutting part;And adapter, with the first connector and the second connector it is mating on, and push sealing ring with by first annular abutment portion from;The first position limiting structure is provided between sealing ring and the first connector, so that the inner wall face interval of sealing ring and the first connector is arranged.Be arranged such, it is ensured that sealing ring and first annular abutment portion from when the first connector will not be blocked, ensure that composite filter element can work normally.
Description
Technical field
The present invention relates to technical field of water purification, in particular to a kind of composite filter element and water purifier.
Background technique
Drinking Water Problem is the problem of common people pay special attention to, and having many substances for being unfavorable for health in water has been thing out of question
Real, this is also the hot root of the main reason for common people's healthy water consciousness is strengthened and purifier market.
Existing water purifier would generally be included filter housing, be installed on to reduce volume using composite filter element, the composite filter element
Primary filter core in filter housing and the secondary filter core being installed in primary filter core, the water inlet on the water inlet end and filter housing of primary filter core
Mouth connection, the water outlet of primary filter core are connected to the water inlet end of secondary filter core, and on the water outlet and filter housing of secondary filter core
Water outlet connection.It should be noted that needing certain hydraulic pressure when secondary filter element filtering, this is just needed in primary filter core and secondary
Need to increase a supercharging device on the water route of filter core connection, for convenience by supercharging device concatenate to be connected to primary filter core and time
On the water route of grade filter core, it will usually which a connector is set on filter housing, on the corresponding connector of primary filter core, primary filter core
Connector is inserted to the connector on filter housing Nei and is coaxially disposed (connecing on the connector and filter housing on i.e. primary filter core with the connector on filter housing
Head is arranged in internal and external partition), and the connector on the connector and secondary filter core on primary filter core passes through adapter and supercharging device
Connection, this allows for supercharging device and is serially connected on the water route for being connected to primary filter core and secondary filter core.
When disassembling from composite filter element in order to avoid adapter, the water inside composite filter element is flowed out of filter housing connector
Out, a sealing ring can be generally sheathed on the second connector, which separates in adapter with the first connector and the second connector
When, the first connector is blocked, when adapter is separated with the first connector and the second connector, sealing ring closes the first connector.
But sealing ring is usually to use made of the flexible materials such as silica gel, rubber, this allows for appearance when sealing ring stress
It is also easy to produce deformation, when adapter and the first connector and the second connector are assemblied in one piece, although the first connector is now in opening
State, if but when active force of the sealing ring by biggish water can generate deformation, will once the deformation quantity of sealing ring is excessive
Cause the first connector to be closed, and then influences the normal work of composite filter element.
Summary of the invention
The main object of the present invention is to propose a kind of composite filter element, it is intended to guarantee the first connector of composite filter element at work
It is not blocked.
To achieve the above object, a kind of composite filter element proposed by the present invention comprising:
Filter housing, be equipped with inlet and outlet, and the filter housing be equipped be connected to its inner cavity the first connector, described first
The inner wall of connector is convexly equipped with the first annular abutting part of the circumferentially extending along the first connector;
Element kit is installed in the filter housing, and the element kit includes primary filter core and secondary filter core, the secondary
The water outlet of filter core is connected to the water outlet, and the water inlet end of the primary filter core is connected to the water inlet, the primary filter
The water outlet of core and first fittings, and the primary filter core is equipped with and is connected to simultaneously with the water inlet end of the secondary filter core
Protrude into the second connector in first connector;
Sealing ring is sheathed on second connector, and is sealed against with the first annular abutting part;And
Adapter, with first connector and the second connector it is mating on, and push the sealing ring and described by the
One annular abutment separation, so that first connector is opened;
Be provided with the first position limiting structure between the sealing ring and first connector so that the sealing ring with it is described
The inner wall face interval of first connector is arranged.
Preferably, first position limiting structure includes the inner wall for being convexly equipped in first connector, and along described first
Circumferentially spaced multiple first convex ribs of connector;And/or
It is convexly equipped in the sealing ring outside wall surface, and along circumferentially spaced multiple second convex ribs of the sealing ring.
Preferably, the primary filter core includes the end cap for being cylindrical in shape setting, and the end cap, which has, is inserted to first connector
And the second plug division between connector, first position limiting structure are set between the plug division and the sealing ring.
Preferably, first position limiting structure includes the multiple third convex ribs of inner wall for being convexly equipped in the plug division, multiple
The third convex ribs are along the axially extending of the plug division and being provided at circumferentially spaced along the plug division.
Preferably, second connector is convexly equipped with adjacent to the outside wall surface of the first annular abutting part along second connector
Circumferentially extending the second annular abutment;
Be provided with the second position limiting structure between the sealing ring and second connector so that the sealing ring with it is described
The outer wall face interval of second connector is arranged.
Preferably, second position limiting structure includes being convexly equipped in the outside wall surface of second connector and connecing along described second
Circumferentially spaced multiple 4th convex ribs of head;And/or
It is convexly equipped in the sealing ring inner wall, and along circumferentially spaced multiple 5th convex ribs of the sealing ring.
Preferably, the hardness of the sealing ring is 30~40A.
Preferably, the composite filter element further includes the dynamic clamping head and quiet clamping head being installed in the filter housing, the dynamic clamping head and quiet clamping head
It is abutted with the sealing ring, so as to the sealing ring and the first annular abutting part and seal against.
Preferably, the sealing ring is convexly equipped with the annular stop along its circumferentially extending in face of the surface of the element kit
Muscle;
The dynamic clamping head and quiet clamping head is pressure spring, and the compression spring sleeve is set on second connector, and one end of the pressure spring
It is abutted with the element kit, the other end of the pressure spring is protruded into the annular stop muscle, and abutted with the sealing ring.
Preferably, the height of the annular stop muscle is 1~3 times of the pressure spring diameter.
Preferably, the adapter includes spaced first connection-peg of ecto-entad and the second connection-peg, and described
One connection-peg and second connection-peg are interconnected, and first connection-peg is used for first connector mating, institute
The second connection-peg is stated for mating with second connector, and second connection-peg and the second connector grafting
End, which is provided with, supports protrusion, and the protrusion of supporting is for supporting the sealing ring.
Preferably, the adapter is additionally provided with the first butt joint being connected to first connection-peg and with described
Second butt joint of two connection-pegs connection, and first butt joint and the second butt joint each along first connection-peg or
Second connection-peg radially extends setting.
Preferably, check valve is installed in second connector.
The present invention also proposes that a kind of water purifier, the water purifier include composite filter element, and the composite filter element includes:
Filter housing, be equipped with inlet and outlet, and the filter housing be equipped be connected to its inner cavity the first connector, described first
The inner wall of connector is convexly equipped with the first annular abutting part of the circumferentially extending along the first connector;
Element kit is installed in the filter housing, and the element kit includes primary filter core and secondary filter core, the secondary
The water outlet of filter core is connected to the water outlet, and the water inlet end of the primary filter core is connected to the water inlet, the primary filter
The water outlet of core and first fittings, and the primary filter core is equipped with and is connected to simultaneously with the water inlet end of the secondary filter core
Protrude into the second connector in first connector;
Sealing ring is sheathed on second connector, and is sealed against with the first annular abutting part;And
Adapter, with first connector and the second connector it is mating on, and push the sealing ring and described by the
One annular abutment separation, so that first connector is opened;
Be provided with the first position limiting structure between the sealing ring and first connector so that the sealing ring with it is described
The inner wall face interval of first connector is arranged.
Technical solution of the present invention, by the way that water inlet, water outlet and the first connector are arranged on the filter housing of composite filter element,
And the inner wall of first connector is equipped with the first annular abutting part along its circumferentially extending;The filter core group of the composite filter element
Part is installed in the filter housing comprising the primary filter core and fine filter core that ecto-entad is set gradually, the primary filter core are set
There is the second connector protruded into first connector;The sealing ring of the composite filter element is sheathed on the second connector, and with it is described
First annular abutting part abuts;The adapter of the composite filter element is matched with first connector and the second connector grafting respectively
Close, and push the sealing ring and the first annular abutment portion from, by first connector and the second fittings, and
And it is provided with the first position limiting structure between first sealing ring and first connector, so that the sealing ring and described the
The inner wall face interval of one connector is arranged.It is arranged such, it is ensured that the deformation that the sealing ring will not be generated by it is excessive, and causes
The sealing ring and the first annular abutment portion from when also the problem of first joint sealing, is occurred, ensure that
The composite filter element can work normally.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the cross-sectional view of one embodiment of composite filter element of the present invention;
Fig. 2 is the structural schematic diagram of Fig. 1 filter housing;
Fig. 3 is the partial schematic diagram of composite filter element in Fig. 1;
Fig. 4 is the structural schematic diagram of the end cap of primary filter core in Fig. 1;
Fig. 5 is the structural schematic diagram at a visual angle of sealing ring in Fig. 1;
Fig. 6 is the structural schematic diagram at another visual angle of sealing ring in Fig. 1;
Fig. 7 is the structural schematic diagram of adapter in Fig. 1.
Drawing reference numeral explanation:
Label | Title | Label | Title |
10 | Composite filter element | 1111 | First sealing bar |
100 | Filter housing | 212 | End cap |
a | Water inlet | 2121 | Plug division |
b | Water outlet | 2121a | Third convex ribs |
c | Waste water mouth | 2111 | Second annular abutment |
d | Water storage mouth | 310 | Second sealing bar |
110 | First connector | 500 | Dynamic clamping head and quiet clamping head |
111 | First annular abutting part | 410 | First connection-peg |
200 | Element kit | 420 | Second connection-peg |
210 | Primary filter core | 421 | Top |
220 | Secondary filter core | 430 | First butt joint |
221 | Reverse osmosis membrane filter element | 440 | Second butt joint |
222 | Active carbon filter core | 450 | Mounting plate |
211 | Second connector | 451 | Through-hole |
300 | Sealing ring | 600 | Check valve |
400 | Adapter |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes that a kind of composite filter element, the composite filter element can be applied in water purifier, also can be used alone,
The composite filter element can eliminate silt, iron rust, bacterium, the peculiar smell etc. in water, and clean, safe pure water is provided for user.
Fig. 1 is please referred to, Fig. 1 shows the cross-sectional view of one embodiment of composite filter element of the present invention, which includes:
Filter housing 100 is equipped with water inlet a and water outlet b, and the filter housing 100 is equipped with the first connector for being connected to its inner cavity
110, the inner wall of first connector 110 is convexly equipped with the first annular abutting part 111 of the circumferentially extending along the first connector 110;
Element kit 200 is installed in the filter housing 100, and the element kit 200 includes primary filter core 210 and secondary
The water outlet of filter core 220, the secondary filter core 220 is connected to the water outlet b, the water inlet end of the primary filter core 210 and institute
Water inlet a connection is stated, the water outlet of the primary filter core 210 is connected to first connector 110, and the primary filter core
210 are equipped with and are connected to the water inlet end of the secondary filter core 220 and protrude into the second connector 211 in first connector 110;
Sealing ring 300 is sheathed on second connector 211, and is sealed against with the first annular abutting part 111;
And
Adapter 400, with first connector 110 and the second connector 211 it is mating on, and push the sealing ring
300 separate first annular abutting part 111 with described, so that first connector 110 is opened;
It is provided with the first position limiting structure between the sealing ring 300 and first connector 110, so that the sealing ring
300 are arranged with the inner wall face interval of first connector 110.
Please with reference to Fig. 2, there are many kinds of the shapes of the filter housing 100, can be cylindrical body, cube, polygonal body
Etc., at this specific restriction is not done to the shape of the filter housing 100, it should be noted that the shape of the filter housing 100 is usual
The filter core shape internal with it is installed is related, and since existing filter core is usually in cylindrical body setting, this makes by multiple filter core collection
At element kit 200 also in cylindrical body be arranged, therefore, the shape of the filter housing 100 is usually also set to cylindrical body.The filter
Water inlet a and water outlet b would generally be set on shell 100, water inlet a is connected to water source, for raw water (i.e. unfiltered water) into
Entering into the filter housing 100, the water outlet b is used to be discharged for pure water (passing through the filtered water of element kit 200), for
User takes.In general, waste water mouth c and water storage mouth d can be also arranged in the filter housing 100, wherein the waste water mouth c is for described in confession
Element kit 200 crosses the waste water discharge generated when drainage, and the water storage mouth d can be with water storage device (such as pressurized tank, water storage bag
Etc.) connection, so that the pure water that the composite filter element 10 generates can be temporarily stored into the water storage device by the water storage mouth d
In, and when user takes pure water, the pure water being stored in the water storage device can be back in the filter housing 100, and
The speed for thus accelerating the composite filter element 10 so that user takes and going out pure water is discharged from the water outlet b, shortens use
The time of family required waiting when fetching water, and then be conducive to improve the experience of user.
The element kit 200 includes primary filter core 210 and secondary filter core 220, wherein the primary filter core 210 is arranged
There is the second connector 211 of installation cavity and the connection installation cavity, the secondary filter core 220 is installed on the primary filter core 210
Installation cavity in, and the water inlet end of the secondary filter core 220 is connected to second connector 211, allow in this way it is described at the beginning of
Grade filter core 210 and the secondary filter core 220 are integrated in one and form the element kit 200, meanwhile, the secondary filter core
220 with the primary filter core 210 be in inside and outside arrangement, is conducive to the volume for reducing entire element kit 200 in this way, and then also can
To reduce the volume of entire composite filter element 10.The primary filter core 210 is mainly used for iron rust, silt, peculiar smell etc. in water removal,
It can be PAC composite filter element 10 (i.e. the composite filter element 10 of PP cotton and active carbon), be also possible to by non-woven fabrics and active carbon fibre
The composite filter element 10 that dimension layer is constituted just is not listed one by one herein it is, of course, also possible to be that other filter materials manufacture the filter core to be formed.Institute
The impurity such as bacterium, the calcium ions and magnesium ions that secondary filter core 220 is mainly used for removing in water are stated, the secondary filter core 220 generally includes instead
Permeate membrane filter 221 and active carbon filter core 222, the reverse osmosis membrane filter element 221 can go bacterium in water removal, heavy metal, calcium
Magnesium ion and other impurity being dissolved in the water, the active carbon filter core 222 can go peculiar smell, chlorine residue etc. in water removal.?
When the primary filter core 210 and the secondary filter core 220 assemble, the secondary filter core 220 is mounted to the primary filter core 210
Downstream (water outlet of the i.e. described primary filter core 210), avoid the accumulation of the large particulate matters such as iron rust, the silt in water in this way
In the secondary filter core 220, and the problem for causing the secondary filter core 220 blocked occurs, while can also extend described
The service life of secondary filter core 220.
The adapter 400 is mainly used for for first connector 110 being connected to the second connector 211, and the switching
First 400 can also be connected to the composite filter element 10 and booster pump etc., so as to increase by the primary filtered water of filter core 210
It is flowed into again after pressure in the secondary filter core 220, so on the one hand convenient for the composite filter element 10 and booster pump or other pressurizations
Device connection;On the other hand the rate of filtration of the secondary filter core 220 is also advantageously improved.
When replacing element kit 200 in view of the composite filter element 10, need the adapter 400 from the filter housing
It is disassembled on 100, if if there remains water in the filter housing 100, water can be flowed out from first connector 110, in turn
User's normal operating is influenced, in consideration of it, a sealing ring is arranged between first connector 110 and second connector 211
300, the sealing ring 300 is sheathed on second connector 211, and the inner wall of first connector 110 is convexly equipped with edge
Its first annular abutting part 111 circumferentially extended, to be sealed against with the sealing ring 300.It should be noted that the sealing
Circle 300 is tightly connected with second connector 211, i.e., the described sealing ring 300 is set with 211 tight fit of the second connector
It sets, it, can be by first connector when being abutted this assures the sealing ring 300 with the first annular abutting part 111
110 are blocked.
In the adapter 400 and first connector 110 and mating the second connector 211, the sealing ring 300
It is pushed and separated with the first annular abutting part 111 by the adapter 400, allowed at first connector 110 in this way
In opening state, water can be flowed into booster pump after the primary filter core 210 filters by first connector 110 to be increased
Pressure, then be back in second connector 211 to enter in the reverse osmosis membrane filter element 221;In the adapter 400 from institute
State when being disassembled on filter housing 100, the sealing ring 300 by water impact and along the axial movement of second connector 211,
And when the sealing ring 300 is abutted with the first annular abutting part 111, first connector 110 is blocked, in this way
It is avoided that the water inside the filter-core shell is flowed out from first connector 110.
It should be noted that the sealing ring 300 is usually to be made of the flexible materials such as rubber, silica gel, when its by
When larger pressure, deformation can be generated, when first connector 110 in the open state, and when hydraulic pressure is larger, sealing ring
300 will receive greater impact and generate deformation, so that the sealing ring 300 blocks first connector 110, and then make
Obtaining the composite filter element 10 cannot work normally, in consideration of it, being arranged between the sealing ring 300 and first connector 110
There is the first position limiting structure, so that the sealing ring 300 and the inner wall of first connector 110 are set in distance.Thus
Ensure the sealing ring 300 after adapter 400 and first connector 110 and the second connector 211 are mating, it is described close
First connector 110 will not be sealed by seal 300, and then ensure that the composite filter element 10 is able to carry out normal work.
In addition, when the second connector 211 on the primary filter core 210 is protruded into the first connector 110 of the filter housing 100,
It can be coaxially disposed with the first connector 110, can also with the non-coaxial setting of first connector 110, in order to facilitate sealing ring
The cooperation of 300 the first connectors 110 of sealing and adapter 400 and the first connector 110 and the second connector 211, the first connector 110 and
Second connector 211 is preferably coaxially disposed.
Technical solution of the present invention, by the way that water inlet a, water outlet b and the are arranged on the filter housing 100 of composite filter element 10
One connector 110, and the inner wall of first connector 110 is equipped with the first annular abutting part 111 along its circumferentially extending;It is described
The element kit 200 of composite filter element 10 is installed in the filter housing 100 comprising the primary filter core that ecto-entad is set gradually
210 and fine filter core, the primary filter core 210 is equipped with the second connector 211 protruded into first connector 110;It is described compound
The sealing ring 300 of filter core 10 is sheathed on the second connector 211, and is abutted with the first annular abutting part 111;The composite filter
The adapter 400 of core 10 pushes the sealing ring respectively with first connector 110 and 211 grafting of the second connector with cooperation
300 separate with the first annular abutting part 111, first connector 110 are connected to the second connector 211, and described
It is provided with the first position limiting structure between first sealing ring 300 and first connector 110, so that the sealing ring 300 and institute
State the inner wall face interval setting of the first connector 110.It is arranged such, it is ensured that the sealing ring 300 will not be because of the deformation of its generation
It is excessive, and the sealing ring 300 is caused also to seal first connector 110 when separating with the first annular abutting part 111
The problem of occur, ensure that the composite filter element 10 can work normally.In addition, replacing in the composite filter element 10
When element kit 200, directly the adapter 400 can be disassembled from the filter housing 100, at this time the sealing ring
300 by water in the filter housing 100 effect and first connector 110 is blocked, avoided in the filter housing 100 in this way
Water flows out and influences the operation of user from first connector 110.
In one embodiment of this invention, first position limiting structure includes the inner wall for being convexly equipped in first connector 110
Face, and along circumferentially spaced multiple first convex ribs of first connector 110;And/or it is convexly equipped in the sealing ring 300
Outside wall surface, and along circumferentially spaced multiple second convex ribs of the sealing ring 300.So set, making the sealing
Circle 300 always can there are gaps between the inner wall of first connector 110, and then ensure the sealing ring 300 not
The state that can be generated biggish deformation because of the impact by water, and then it is caused to block the first connector 110 occurs.
It should be noted that when first position limiting structure be convexly equipped in first connector 110 inner wall first
When convex ribs, first convex ribs are along the axially extending setting of first connector 110, so set, making described
One convex ribs can not only be such that the inner wall of first connector 110 and the sealing ring 300 interval is arranged, while described first convex
Muscle can also guide sealing ring 300 along the axial movement of second connector 211, allow for 300 energy of sealing ring in this way
Enough more stably along the axial movement of second connector 211.In addition, the inner wall when first connector 110 is provided with
Multiple first convex ribs, and when the outside wall surface of the sealing ring 300 is provided with multiple second convex ribs, two first convex ribs of arbitrary neighborhood
It is greater than circumferential width of any one second convex ribs along sealing ring 300 along the circumferential spacing of first connector 110,
Two second convex ribs of arbitrary neighborhood are greater than any one first convex ribs along first along the circumferential spacing of the sealing ring 300
The circumferential spacing of connector 110 ensures that the sealing ring 300 is pushed by the adapter 400 and with described first in this way
When annular abutment 111 separates, remain enough between the sealing ring 300 and the inner wall of first connector 110
Big gap.
Further, the surface of inner wall of first convex ribs far from first connector 110 is cambered surface, i.e., described the
The surface of inner wall of one convex ribs far from first connector 110 is convexity arc surface or concave picture, can reduce institute in this way
The frictional force between the first convex ribs and the sealing ring 300 is stated, and then convenient for the sealing ring 300 along second connector
211 slidings;Certainly, cambered surface also can be set into far from the surface of the sealing ring 300 in second convex ribs, i.e., described second is convex
Surface of the muscle far from the sealing ring 300 is convexity arc surface, can reduce the interior of the second convex ribs and first connector 110 in this way
Frictional force between wall surface, and then slided convenient for the sealing ring 300 along second connector 211.
Obviously, first position limiting structure, which can also be, is divided on the sealing ring 300 and first connector 110
Magnet assembly, i.e., described first position limiting structure include the first magnetic absorption member on first connector 110 and are set to described
The second magnetic absorption member on sealing ring 300, and first magnetic absorption member is different namely described with the magnetism of second magnetic absorption member
It is excluded each other between first magnetic absorption member and second magnetic absorption member, allows for 300 installation set of sealing ring in this way and be set to
When on second connector 211, the sealing ring 300 is made by the magnetic between second magnetic absorption member and first magnetic absorption member
With and be arranged always with the inner wall face interval of first connector 110, this assures in the adapter 400 and described the
When one connector 110 and mating the second connector 211, the sealing ring 300 will not cause first to connect because its deformation is excessive
The appearance of first 110 the problem of being blocked.
Certainly, first position limiting structure can also be the structural member in grid-like setting, is installed on described first and connects
Between first 110 inner wall and the outside wall surface of the sealing ring 300, when the sealing ring 300 and the first annular abutting part
When 111 separation, the sealing ring 300 is abutted in the structural member of grid-like setting, allows for the sealing ring 300 and institute in this way
It states between the inner wall of the first connector 110 that there are gaps, can equally guarantee to connect in the adapter 400 with described first in this way
First 110 and second connector 211 it is mating when, the sealing ring 300 will not lead to the first connector 110 because its deformation is excessive
The problem of being blocked appearance.
It should be noted that there are many kinds of first position limiting structures, just not one by one to first position limiting structure at this
It enumerates.
It is more preferable in order to make to seal between the sealing ring 300 and the first annular abutting part 111, referring to figure 3., at this
In one embodiment of invention, the first annular abutting part 111 is convexly equipped in face of the surface of the sealing ring 300 along described first
First sealing bar 1111 of the circumferentially extending of connector 110.It is abutted in the sealing ring 300 with the first annular abutting part 111
When, first sealing bar 1111 is abutted with the sealing ring 300, and the sealing ring 300 is by water in the filter housing 100
Impact and be bonded with first sealing bar 1111 closer, this is allowed for described in first sealing bar 1111 can support
Sealing ring 300 and so that the sealing ring 300 is generated deformation, and then ensure that the sealing ring 300 first annular is abutted with described
Leakproofness between portion 111.
Further, the width of first sealing bar 1111 is from the first annular abutting part 111 to far from described the
The direction of one annular abutment 111 is gradually reduced, that is to say, that first sealing bar 1111 is in three along its axial cross section
Angular or trapezoidal setting, when this allows for the sealing ring 300 and contacts with first sealing bar 1111, it is easier to generate shape
Become, cooperates so that the sealing ring 300 can be sealed preferably with first sealing bar 1111.
It should be noted that first sealing bar 1111 along the first annular abutting part 111 axial height not
Preferably excessive, if excessive, will lead to the sealing ring 300 can not be bonded with the first annular abutting part 111, if too small,
First sealing bar 1111 does not have the effect of sealing, in consideration of it, in an embodiment of the present invention, first sealing bar
1111 height is set as 0.5~1.5mm, can both guarantee the sealing ring 300 and the first annular abutting part 111 in this way
When fitting, first sealing bar 1111 can support the sealing ring 300 and generate deformation, and then be conducive to improve the sealing
Leakproofness between circle 300 and the first annular abutting part 111.
In one embodiment of this invention, referring to figure 3. and Fig. 4, the primary filter core 210 includes the end for being cylindrical in shape setting
Lid 212, and the end cap 212 has the plug division being inserted between first connector 110 and second connector 211
2121, first position limiting structure is set between the plug division 2121 and the sealing ring 300.
It should be noted that first position limiting structure, which can be, is convexly equipped in the sealing ring 300 and the plug division
Convex ribs between 2121, i.e., the described convex ribs can be set on the sealing ring 300 or the convex ribs can be set to the grafting
The inner wall in portion 2121 or the convex ribs can simultaneously on the inner wall of the sealing ring 300 and plug division 2121 simultaneously
Setting;First position limiting structure can also be the magnet assembly between the sealing ring 300 and the plug division 2121,
It is made of two different and mutually exclusive magnet of two magnetism;Certainly, first position limiting structure, which can also be, is set to
Reticular structure between the plug division 2121 and the sealing ring 300, it can the structural member of water is crossed, here, to institute is set to
The first position limiting structure stated between the first plug division 2121 and the sealing ring 300 is just not listed one by one.
Specifically, first position limiting structure is to be convexly equipped in the inner wall of the plug division 2121 and along the plug division
2121 circumferentially spaced multiple third convex ribs 2121a, the sealing ring 300 by the adapter 400 push and with institute
It is abutted when stating the separation of first annular abutting part 111 with multiple third convex ribs 2121a, this assures the sealing rings
There are gap between 300 and the plug division 2121 of the end cap 212, ensure that the adapter 400 connects with described first
First 110 and second connector 211 it is mating when, the sealing ring 300 will not seal first connector 110, and then ensure
The composite filter element 10 can work normally.
In order to enable the sealing ring 300 to be preferably sealed first connector 110, referring to figure 3., at this
In one embodiment of invention, second connector 211 is convexly equipped with adjacent to the outside wall surface of the first annular abutting part 111 along described
Second annular abutment 2111 of the circumferentially extending of the second connector 211, this allows for the first annular abutting part 111 in face of institute
It is coplanar that the surface and second annular abutment 2111 for stating element kit 200, which face the surface of the element kit 200,.
When the adapter 400 is disassembled from the filter housing 100 namely the adapter 400 and first connector 110 and
Second connector 211 separate when, the sealing ring 300 at this time with the first annular abutting part 111 and it is described second annular
Abutting part 2111 abuts respectively, so set, ensure that the sealing ring 300 can seal first connector 110 tightly,
It is damaged so as to avoid due to the sealing ring 300 slidably reciprocates along second connector 211, and then leads to the sealing ring
Poorly sealed problem occurs between 300 and second connector 211.
Further, referring to figure 5., the sealing ring 300 faces the surface projection of second annular abutment 2111
There is the second sealing bar 310 of the circumferentially extending along the sealing ring 300.When the sealing ring 300 and second annular abutment
When portion 2111 abuts, the second sealing bar 310 on the sealing ring 300 is squeezed and generates deformation, allows for so described close
Seal 300 can be abutted preferably with second annular abutment 2111, and then be conducive to promote the sealing ring 300 and institute
State the leakproofness between the second annular abutment 2111.
The sealing ring 300 is slided along second connector 211 for convenience, the sealing ring 300 and described second
The second position limiting structure is additionally provided between connector 211, so that the outside wall surface of the sealing ring 300 and second connector 211
Interval setting.Specifically, second position limiting structure includes being convexly equipped in the outside wall surface of second connector 211 and along described
Circumferentially spaced multiple 4th convex ribs of two connectors 211;And/or it is convexly equipped in 300 inner wall of sealing ring, and along
Circumferentially spaced multiple 5th convex ribs of the sealing ring 300.So set, reduce the sealing ring 300 with it is described
Contact area between the outside wall surface of second connector 211, this reduces the sealing rings 300 and second connector 211
Between frictional force, and then slided along second connector 211 convenient for the sealing ring 300.
In addition, when the outside wall surface of second connector 211 is provided with the inner wall of multiple 4th convex ribs or the sealing ring 300
When face is provided with multiple five convex ribs, at this point, can have gap between the sealing ring 300 and second connector 211, and institute
The gap stated between sealing ring 300 and second connector 211 can cross water, can also thus increase first connector
110 discharge area, and then be conducive to accelerate the flowing of water in the filter housing 100.
In addition, the outside wall surface when second connector 211 is provided with multiple 4th convex ribs, and the sealing ring 300
When inner wall is provided with multiple five convex ribs, the 4th adjacent convex ribs of any two are between the circumferential direction of second connector 211
Away from being greater than any one 5th convex ribs along the circumferential width of the sealing ring 300, and any two it is adjacent the
Five convex ribs are greater than any one 4th convex ribs along second connector 211 along the circumferential spacing of the sealing ring 300
Circumferential width.So set, avoiding adjacent two the 4th convex ribs clamping the 5th convex ribs or adjacent two the described 5th
Convex ribs clamp the 4th convex ribs, and the frictional force between the sealing ring 300 and second connector 211 is increased, Jin Erying
Sealing ring 300 is rung along appearance the problem of sliding axially of second connector 211.In addition, the 4th convex ribs and described
There are gaps between five convex ribs, and which increases the water-outlet areas of first connector 110, and then are conducive to accelerate the filter
The flowing of water in shell 100.
Further, the surface of the inner wall of the 4th convex ribs far from first connector 110 is convexity arc surface, in this way
The frictional force between first convex ribs and the sealing ring 300 can be reduced, and then convenient for the sealing ring 300 along described
The sliding of second connector 211;5th convex ribs can be set to convexity arc surface or concave far from the surface of the sealing ring 300
Cambered surface equally can reduce the frictional force between the 5th convex ribs and the outside wall surface of second connector 211 in this way, and then be convenient for institute
Sealing ring 300 is stated to slide along second connector 211.
It should be noted that the hardness of the sealing ring 300 affects the ability of its deformation, if the sealing ring
300 hardness is bigger, then its deformability is weaker, thus will affect the sealing effect of the sealing ring 300, if described close
The hardness of seal 300 is smaller, then, will will be described if its deformability is stronger, but 300 deformation of the sealing ring is excessive
First connector 110 blocks.In consideration of it, in the various embodiments of the invention, the hardness of the sealing ring 300 is~, it is preferable that institute
The hardness for stating sealing ring 300 is that on the one hand ensure that the sealing ring 300 and the first annular abutting part 111 and institute in this way
It, can be by the preferably sealing of the first connector 110 when stating the second annular abutment 2111 abutting;On the other hand described in also guaranteeing
The intensity of sealing ring 300 leads to the problem of biggish deformation generation when avoiding the sealing ring 300 by water slug.
The sealing ring 300 is resetted and is sealed against with the first annular abutting part 111 for convenience, of the invention
In one embodiment, Fig. 1 is please referred to, the composite filter element 10 further includes dynamic clamping head and quiet clamping head 500, and the dynamic clamping head and quiet clamping head 500 is installed
In in the filter housing 100, abutted with the sealing ring 300.When the adapter 400 and first connector 110 and described
When second connector 211 is mating, the sealing ring 300 under the promotion of the adapter 400 and first annular is supported with described
Socket part 111 separates, and the dynamic clamping head and quiet clamping head 500 generates deformation with the movement of the sealing ring 300 at this time;When the switching
First 400 with first connector 110 and second connector 211 when separating, and the sealing ring 300 is not at this time by the adapter
400 support, and to close to the first annular abutting part 111 under the impact of the dynamic clamping head and quiet clamping head 500 and water flow
Direction is mobile, thus convenient for the sealing ring 300 in the adapter 400 and first connector 110 and the second connector 211
It is sealed against when separation with the first annular abutting part 111.
It should be noted that the dynamic clamping head and quiet clamping head 500 can be pressure spring, tension spring, elastic slice etc., just do not arrange one by one herein
It lifts.In an embodiment of the present invention, the dynamic clamping head and quiet clamping head 500 is preferably pressure spring, and the pressure spring is installed on the sealing ring 300
The side of the neighbouring element kit 200.Specifically, one end of the pressure spring is abutted with the element kit 200, the pressure spring
The other end abutted with the sealing ring 300, have in this way convenient for the installation of the pressure spring.
Further, please with reference to Fig. 6, the sealing ring 300 is convexly equipped with edge in face of the surface of the element kit 200
Its annular stop muscle circumferentially extended when the pressure spring is abutted with the sealing ring 300, protrudes into the annular stop muscle, this
Sample facilitates the assembling of the pressure spring Yu the sealing ring 300.
Further, the height of the annular stop muscle be the pressure spring diameter~times, if the annular stop muscle
It is highly too small, the annular stop muscle by water impact and biggish deformation can be generated, and turn down outward, and then cause described close
Seal 300 seals first connector 110;If the height of the annular stop muscle is excessive, the sealing ring 300 will affect
Sliding along second connector 211 also will cause the waste of material simultaneously, and set the height of the annular stop muscle to
The pressure spring diameter~times, can either guarantee the annular stop muscle by biggish deformation will not be generated when water slug, simultaneously
Also ensuring the annular stop muscle will not influence the sealing ring 300 along the normally sliding of the second connector 211.
The adapter 400 is connected to first connector 110 and the second connector 211 for convenience, please with reference to figure
7, in an embodiment of the present invention, there is the adapter 400 spaced first connection-peg 410 and second of ecto-entad to insert
Connector 420, for mating with first connector 110, second connection-peg 420 is used for first connection-peg 410
It is mating with second connector 211, it is mating to have the advantages that assembly is quick and easy, thus it is convenient for the switching
First 400 with the assembly and disassembly of first connector 110 and the second connector 211.
The adapter 400 pushes the sealing ring 300 to move for convenience, namely pushes the sealing ring 300 and institute
State first annular abutting part 111 to separate, in one embodiment of this invention, second connection-peg 420 and second connector
The end of 211 grafting is provided with top 421, and the top 421 can be a boss or multiple support along described
The boss of the circumferentially-spaced arrangement in portion 421, it is preferable that the top 421 is between multiple circumferential directions along the top 421
Every the boss of arrangement.It is multiple described in the adapter 400 and first connector 110 and mating the second connector 211
Boss supports the sealing together, to push the sealing ring 300 to move, so that the sealing ring 300 and described first
Annular abutment 111 separates, so that first connector 110 is in the adapter 400 and first connector 110 and the
Two connectors 211 are in the open state when mating.
It should be noted that the multiple boss can with 400 integrated injection molding of adapter, which reduces
The production process of the adapter 400, and then be conducive to improve the production efficiency of the adapter 400.
The adapter 400 is fixedly connected with the filter housing 100 for convenience, in one embodiment of this invention, described
Adapter 400 further includes two mounting plates 450, and it is two opposite to be divided into first connection-peg 410 for two two mounting plates 450
Side, and two fixed plates run through equipped with through-hole 451;The shell is equipped with consolidating positioned at 110 periphery of the first connector
Determine hole;Two fixed plates are respectively by passing through the through-hole 451 and the fastener (screw, spiral shell that are fixedly connected with the fixation hole
Bolt) it is connected and fixed with the shell.So set, convenient for the fixed installation of the adapter 400 and the filter housing 100.
In order to facilitate the arrangement of pipeline, in one embodiment of this invention, it is provided on the adapter 400 and described
First butt joint 430 of one connection-peg 410 connection and the second butt joint 440 being connected to second connection-peg 420, and
And first butt joint 430 and the second butt joint 440 are each along first connection-peg 410 or second connection-peg 420
Radially extend setting.So set, allowing the water pipe being connected to the adapter 400 along the adapter 400
Setting is radially extended, thus convenient for the setting for the water pipe being connected to the composite filter element 10.
In one embodiment of this invention, Fig. 1 is please referred to, the composite filter element 10 further includes check valve 600, described unidirectional
Valve 600 is installed in second connector 211.Since the check valve 600 is one-way conduction, this allows for described second and connects
First 211 are merely able into water, thus when ensure that the adapter 400 is separated with first connector 110 and the second connector 211,
Water in the secondary filter core 220 all will not flow out.
The present invention also proposes a kind of water purifier, which includes composite filter element, the specific structure reference of the composite filter element
Above-described embodiment at least has above-mentioned reality since this water purifier uses whole technical solutions of above-mentioned all embodiments
All beneficial effects brought by the technical solution of example are applied, this is no longer going to repeat them.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (14)
1. a kind of composite filter element characterized by comprising
Filter housing is equipped with inlet and outlet, and the filter housing is equipped with the first connector for being connected to its inner cavity, first connector
Inner wall be convexly equipped with the first annular abutting part of the circumferentially extending along the first connector;
Element kit is installed in the filter housing, and the element kit includes primary filter core and secondary filter core, the secondary filter core
Water outlet be connected to the water outlet, the water inlet end of the primary filter core is connected to the water inlet, the primary filter core
Water outlet and first fittings, and the primary filter core is equipped with and is connected to and protrudes into the water inlet end of the secondary filter core
The second connector in first connector;
Sealing ring is sheathed on second connector, and is sealed against with the first annular abutting part;And
Adapter, with first connector and the second connector it is mating on, and push the sealing ring and described by the first ring
Shape abutment portion is from so that first connector is opened;
It is provided with the first position limiting structure between the sealing ring and first connector, so that the sealing ring and described first
The inner wall face interval of connector is arranged.
2. composite filter element as described in claim 1, which is characterized in that first position limiting structure includes being convexly equipped in described first
The inner wall of connector, and along circumferentially spaced multiple first convex ribs of first connector;And/or
It is convexly equipped in the sealing ring outside wall surface, and along circumferentially spaced multiple second convex ribs of the sealing ring.
3. composite filter element as described in claim 1, which is characterized in that the primary filter core includes the end cap for being cylindrical in shape setting,
The end cap has the plug division being inserted between first connector and the second connector, and first position limiting structure is set to described insert
Between socket part and the sealing ring.
4. composite filter element as claimed in claim 3, which is characterized in that first position limiting structure includes being convexly equipped in the grafting
The multiple third convex ribs of the inner wall in portion, multiple third convex ribs are along the axially extending of the plug division and along the grafting
Portion is provided at circumferentially spaced.
5. composite filter element as described in claim 1, which is characterized in that second connector is adjacent to the first annular abutting part
Outside wall surface be convexly equipped with the second annular abutment of the circumferentially extending along second connector;
It is provided with the second position limiting structure between the sealing ring and second connector, so that the sealing ring and described second
The outer wall face interval of connector is arranged.
6. composite filter element as claimed in claim 5, which is characterized in that second position limiting structure includes being convexly equipped in described second
The outside wall surface of connector and circumferentially spaced multiple 4th convex ribs along second connector;And/or
It is convexly equipped in the sealing ring inner wall, and along circumferentially spaced multiple 5th convex ribs of the sealing ring.
7. composite filter element as described in claim 1, which is characterized in that the hardness of the sealing ring is 30~40A.
8. composite filter element as described in claim 1, which is characterized in that the composite filter element further includes being installed in the filter housing
Dynamic clamping head and quiet clamping head, the dynamic clamping head and quiet clamping head abuts with the sealing ring, so that the sealing ring first annular is abutted with described
It portion and seals against.
9. composite filter element as claimed in claim 8, which is characterized in that the sealing ring is convex in face of the surface of the element kit
Equipped with the annular stop muscle along its circumferentially extending;
The dynamic clamping head and quiet clamping head is pressure spring, and the compression spring sleeve is set on second connector, and one end of the pressure spring and institute
Element kit abutting is stated, the other end of the pressure spring is protruded into the annular stop muscle, and abutted with the sealing ring.
10. composite filter element as claimed in claim 9, which is characterized in that the height of the annular stop muscle is that the pressure spring is straight
1~3 times of diameter.
11. the composite filter element as described in any one of claims 1 to 10, which is characterized in that the adapter includes by outer
The first connection-peg and the second connection-peg of setting spaced inwardly, first connection-peg and second connection-peg are interconnected,
First connection-peg is for mating with first connector, and second connection-peg is used for and the second connector grafting
Cooperation, and the end of second connection-peg and the second connector grafting is provided with and supports protrusion, it is described to support raised use
In supporting the sealing ring.
12. composite filter element as claimed in claim 11, which is characterized in that the adapter is additionally provided with and first connection-peg
First butt joint of connection and the second butt joint for being connected to second connection-peg, and first butt joint and the
Two butt joints radially extend setting each along first connection-peg or second connection-peg.
13. the composite filter element as described in any one of claims 1 to 10, which is characterized in that installation in second connector
There is check valve.
14. a kind of water purifier, which is characterized in that the water purifier includes compound as described in any one of claim 1 to 13
Filter core.
Priority Applications (2)
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CN201711052516.0A CN109721177B (en) | 2017-10-30 | 2017-10-30 | Composite filter element and water purifier |
PCT/CN2018/112532 WO2019085871A1 (en) | 2017-10-30 | 2018-10-30 | Water purifier |
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CN201711052516.0A CN109721177B (en) | 2017-10-30 | 2017-10-30 | Composite filter element and water purifier |
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CN109721177A true CN109721177A (en) | 2019-05-07 |
CN109721177B CN109721177B (en) | 2023-12-19 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110015769A (en) * | 2019-05-10 | 2019-07-16 | 浦江县力顶环保设备有限公司 | A kind of integrated filter core |
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CN109721177B (en) | 2023-12-19 |
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