CN113368571B - Composite filter element and water purification equipment - Google Patents
Composite filter element and water purification equipment Download PDFInfo
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- CN113368571B CN113368571B CN202110623134.9A CN202110623134A CN113368571B CN 113368571 B CN113368571 B CN 113368571B CN 202110623134 A CN202110623134 A CN 202110623134A CN 113368571 B CN113368571 B CN 113368571B
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- joint
- inner barrel
- filter element
- sealing
- barrel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 238000000746 purification Methods 0.000 title claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 89
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000004831 Hot glue Substances 0.000 claims description 2
- 230000004323 axial length Effects 0.000 claims 1
- 238000011900 installation process Methods 0.000 abstract description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/114—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
- B01D35/306—Filter mounting adapter
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/004—Seals, connections
Abstract
The invention discloses a composite filter element and water purification equipment, wherein the composite filter element comprises a filter element joint; the outer barrel is communicated with the filter element joint; the inner barrel is arranged in the outer barrel, a first opening communicated with the filter element joint is formed in the upper end face of the inner barrel, and a gap is formed between the outer wall face of the inner barrel and the inner wall face of the outer barrel; the first filter material is positioned outside the inner barrel so as to form an external filter channel outside the inner barrel; and the second filter material is positioned in the inner barrel so as to form a built-in filtering channel in the inner barrel. The technical scheme of the invention provides the composite filter element with two mutually independent filtering channels, and the installation process of the filter element structure of the water purifying equipment is simplified.
Description
The application is a divisional application with the application date of 2017, 04 and 06 days in 04 and 2017, the application number of 201710223347.6 and the invented name of 'composite filter element and water purification equipment'.
Technical Field
The invention relates to the field of water purification equipment, in particular to a composite filter element and water purification equipment.
Background
Current water purification unit all is provided with the filter core structure, for further protection filter core structure, generally sets up the preliminary treatment filter core (being used for coarse filtration) in first filtration water route, for further improving quality of water, obtains better taste, generally sets up the aftertreatment filter core (being used for meticulous filtration) in the aftertreatment filters the water route. However, the pretreatment cartridge and the post-treatment cartridge are generally two separate bodies, which are inconvenient to install.
Disclosure of Invention
The invention mainly aims to provide a composite filter element, and aims to solve the technical problem that a pretreatment filter element and a post-treatment filter element in the prior art are two independent bodies and are inconvenient to install.
In order to achieve the above object, the present invention provides a composite filter element, comprising:
a filter element joint;
the outer barrel is communicated with the filter element joint;
the inner barrel is arranged in the outer barrel, a first opening communicated with the filter element joint is formed in the upper end face of the inner barrel, and a gap is formed between the outer wall face of the inner barrel and the inner wall face of the outer barrel;
the first filter material is positioned outside the inner barrel so as to form an external filter channel outside the inner barrel; and
the second filter material is positioned in the inner barrel so as to form a built-in filtering channel in the inner barrel.
Preferably, the inner barrel is provided with an annular inner barrel joint with the periphery of the first opening facing upwards, and the inner barrel joint is provided with a sealing structure for sealing and connecting the filter element joint.
Preferably, the sealing structure comprises a sealing ring groove concavely arranged on the circumferential surface of the inner barrel joint and a sealing connecting piece arranged in the sealing ring groove.
Preferably, the sealing connector is an elastic sealing ring.
Preferably, the lower end of the inner barrel and the lower wall of the outer barrel are arranged at intervals, and the first filter material is arranged between the lower end of the inner barrel and the lower wall of the outer barrel.
Preferably, the composite filter element further comprises:
a central tube; the lower end of the inner barrel is also provided with a second opening communicated with the inner space of the first filter material, and the central tube penetrates through the first opening and the second opening to communicate the inner space of the first filter material with the filter element joint.
Preferably, the composite filter element further comprises:
the separating disc is arranged in an annular shape; the inner barrel is arranged with an opening facing downwards, the opening of the inner barrel forms the second opening, the separating disc cover is arranged at the opening of the inner barrel, and the central tube penetrates through the inner opening of the separating disc and the first opening.
Preferably, the outer barrel is arranged with an upward opening, and the filter element joint covers the opening of the outer barrel.
Preferably, the inner barrel is made of ABS plastic or PP plastic.
The invention also provides a water purification device, comprising a composite filter element, wherein the composite filter element comprises:
a filter element joint;
the outer barrel is communicated with the filter element joint;
the inner barrel is arranged in the outer barrel, a first opening communicated with the filter element joint is formed in the upper end face of the inner barrel, and a gap is formed between the outer wall face of the inner barrel and the inner wall face of the outer barrel;
the first filter material is positioned outside the inner barrel so as to form an external filter channel outside the inner barrel; and
the second filter material is positioned in the inner barrel so as to form a built-in filtering channel in the inner barrel.
According to the technical scheme, an inner barrel is arranged in an outer barrel covered with a filter element joint, the inner barrel is communicated with the filter element joint, a first filter material is arranged outside the inner barrel, a second filter material is arranged in the inner barrel, an external filter channel is formed between the outer wall surface of the inner barrel and the inner wall surface of the outer barrel, and an internal filter channel is formed in the inner barrel; it can be understood that, by such an arrangement, two independent filtering channels are combined into an integral structure, and compared with the prior art in which a filter element structure with two mutually independent filtering channels is formed by installing (such as welding) two separate filter elements, the composite filter element arranged by a single body can realize two filtering functions which are not affected by each other, thereby simplifying the installation process of the filter element structure of the water purifying equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a composite filter element according to the present invention;
FIG. 2 is an exploded view of the composite filter element of FIG. 1;
FIG. 3 is a side view of the composite filter element of FIG. 1;
FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3;
FIG. 5 is a schematic view of the cartridge adapter of FIG. 1;
FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 5;
FIG. 7 is a schematic structural view of the inner barrel of FIG. 1;
FIG. 8 is a top view of the inner barrel of FIG. 7;
FIG. 9 is a cross-sectional view taken along line IX-IX of FIG. 8;
fig. 10 is an enlarged schematic view of a portion a of fig. 4.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name(s) | Reference numerals | Name (R) |
| 1 | |
11 | |
12 | The |
| 13 | |
14 | |
15 | |
| 16 | |
17 | |
18 | |
| 2 | |
21 | |
211 | The first |
| 212 | The first |
22 | |
3 | |
| 31 | Built-in filtering |
311 | The second |
312 | The second |
| 32 | |
33 | |
331 | |
| 332 | Sealing connecting |
34 | First opening | 35 | Second opening |
| 4 | |
5 | Separating |
6 | Central tube |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a composite filter element.
In an embodiment of the present invention, referring to fig. 1 to 4, the composite filter element includes:
a filter element joint 1;
the outer barrel 2 is communicated with the filter element joint 1;
the inner barrel 3 is arranged in the outer barrel 2, the upper end surface of the inner barrel 3 is provided with a first opening 34 communicated with the filter element joint 1, and a gap is arranged between the outer wall surface of the inner barrel 3 and the inner wall surface of the outer barrel 2;
the first filter material 22 is positioned outside the inner barrel 3, so that an external filtering channel 21 is formed outside the inner barrel 3; and
the second filter material 32 is located in the inner barrel 3, so that a built-in filtering channel 31 is formed in the inner barrel 3.
It can be understood that the first filter 22 and the second filter 32 are both cylindrical, in this embodiment, the first filter 22 divides the external filtering channel 21 into a first inlet cavity 211 and a first outlet cavity 212, and the second filter 32 divides the internal filtering channel 31 into a second inlet cavity 311 and a second outlet cavity 312; in addition, referring to fig. 5 and 6, the filter element joint 1 is provided with a first water inlet 11 and a first water outlet 12 which are communicated with the external filtering channel 21, and the first filtering material 22 is positioned between the first water inlet 11 and the first water outlet 12; the filter element joint 1 is further provided with a second water inlet 13 and a second water outlet 14 which are communicated with the built-in filtering channel 31 (the second water inlet 13 and the second water outlet 14 are communicated with the first opening 34), and the second filtering material 32 is located between the second water inlet 13 and the second water outlet 14. Specifically, the water to be filtered enters the first water inlet cavity 211 (or the second water inlet cavity 311) through the first water inlet 11 (or the second water inlet 13) of the filter element joint 1, passes through the first filter material 22 (or the second filter material 32) and is obtained in the first water outlet cavity 212 (or the second water outlet cavity 312), and the filtered water is finally discharged through the first water outlet 12 (or the second water outlet 14) of the filter element joint 1.
According to the technical scheme, an inner barrel 3 is arranged in an outer barrel 2 covered with a filter element joint 1, the inner barrel 3 is communicated with the filter element joint 1, then a first filter material 22 is arranged outside the inner barrel 3, a second filter material 32 is arranged in the inner barrel 3, so that an external filter channel 21 is formed between the outer wall surface of the inner barrel 3 and the inner wall surface of the outer barrel 2, and an internal filter channel 31 is formed in the inner barrel 3; it can be understood that, by adopting the arrangement, two independent filtering channels are combined into an integral structure, compared with the prior art that the filter element structure with two mutually independent filtering channels is formed by installing (such as welding) two separate filter elements, the composite filter element arranged by a single body can realize two filtering functions which are not mutually influenced, and the installation process of the filter element structure of the water purifying equipment is simplified.
Further, referring to fig. 7 to 10, a ring-shaped inner barrel joint 33 is disposed at the periphery of the first opening 34 of the inner barrel 3 facing upward, and a sealing structure for sealing and connecting the filter element joint 1 is disposed on the inner barrel joint 33. In this embodiment, the filter cartridge joint 1 has a first sealing joint 15 in a ring shape, and the first sealing joint 15 can be connected with the inner barrel joint 33 in a matching way; it can be understood that, so set up, can effectively strengthen the leakproofness of interior bucket 3 and filter core joint 1 junction to guarantee better that external filtration passageway 21 and built-in filtration passageway 31 do not cross water. It should be noted that the design is not limited to this, and in other embodiments, the inner barrel joint 33 and the first sealing joint 15 may be connected in a sealing manner by hot melt adhesive, ultrasonic waves, or the like.
In this embodiment, the composite filter element further includes an annular upper cover 4 disposed in the inner barrel joint 33, the filter element joint 1 further has an annular second sealing joint 16, the second sealing joint 16 is located inside the first sealing joint 15, an inner circumferential surface of the second sealing joint 16 is adapted to an outer circumferential surface of the upper cover 4, and an inlet of the second water inlet cavity 311 is formed between the first sealing joint 15 and the second sealing joint 16.
Further, the sealing structure includes a sealing ring groove 331 recessed on the circumferential surface of the inner tub adapter 33 and a sealing connector 332 disposed in the sealing ring groove 331. In this embodiment, the outer peripheral surface of the inner barrel joint 33 is fittingly connected with the inner peripheral surface of the first sealing joint 15, and the sealing ring groove 331 is formed on the outer peripheral surface of the inner barrel joint 33; it can be understood that the sealing ring groove 331 and the sealing connecting member 332 are widely used in the prior art, have simple structure and low price, and are conveniently connected and have good sealing effect when being applied to the connection position of the inner barrel joint 33 and the first sealing joint 15. It should be noted that the design is not limited to this, in other embodiments, the inner circumferential surface of the inner barrel joint 33 is fittingly connected to the outer circumferential surface of the first sealing joint 15, and the sealing ring groove 331 is concavely disposed on the inner circumferential surface of the inner barrel joint 33; of course, the sealing structure may be other sealing structures. Preferably, the sealing connector 332 is an elastic sealing ring, which is cheap and has good sealing effect. It should be noted that the design is not limited thereto, and in other embodiments, the sealing connector 332 may also be sealing solid glue, sealing liquid glue, or the like.
Further, referring to fig. 4, the lower end of the inner barrel 3 is spaced apart from the lower wall of the outer barrel 2, and the first filter 22 is disposed between the lower end of the inner barrel 3 and the lower wall of the outer barrel 2. It can be understood that, the first filter 22 and the second filter 32 are arranged along the axial direction of the outer barrel 2 and the inner barrel 3, which can reduce the requirement on the radial length of the outer barrel 2 (reduce the radial length of the outer barrel 2), and reduce the space occupied by the composite filter element along the radial direction of the outer barrel 2. It should be noted that the present design is not limited to this, and in other embodiments, the first filter 22 may be disposed between the side peripheral wall of the inner barrel 3 and the side peripheral wall of the outer barrel 2.
Further, outer bucket 2 is the uncovered setting up upwards, and filter core connects 1 lid and closes outer bucket 2's uncovered. In this embodiment, the filter element joint 1 further has two sealing ring ribs 18 disposed near the edge, and a slot is formed between the two sealing ring ribs 18 for the upper end of the peripheral wall of the outer tub 2 to be inserted and sealed; it can be understood that the arrangement facilitates the assembly between the outer barrel 2 and the filter element joint 1. It should be noted that, the design is not limited to this, and in other embodiments, the outer barrel 2 is also provided with an opening on the upper end face, and the filter element joint 1 covers the opening on the upper end face of the outer barrel 2. In this embodiment, the inlet of the first inlet chamber 211 is formed between the inner sealing ring rib 18 of the filter cartridge connector 1 and the first sealing connector 15.
Further, referring to fig. 2 and 4, the composite filter element further includes: a central tube 6; the lower end of the inner barrel 3 is also provided with a second opening 35 communicated with the inner space of the first filter material 22, and the central tube 6 is penetrated through the first opening 34 and the second opening 35 in a sealing way so as to communicate the inner space of the first filter material 22 and the filter element joint 1. In this embodiment, the central tube 6 further penetrates through the inner opening of the upper cover 4, the filter element joint 1 further has a third annular sealing joint 17, an inner peripheral surface of the third sealing joint 17 is fittingly connected to an outer peripheral surface of an upper end of the central tube 6, an outlet of the second water outlet cavity 312 is formed between the outer peripheral surface of the upper end of the central tube 6 and the second sealing joint 16, and an outlet of the first water outlet cavity 212 is formed between the third sealing joints 17. It can be understood that, so set up for same one side is all located to first water inlet 11 and first delivery port 12, has reduced the processing degree of difficulty of filter core joint 1, and simultaneously, interior bucket 3 and accomplish out water is worn to establish by center tube 6, has also make full use of the space in the outer bucket 2. It should be noted that, the inner space of the outer barrel 2 is fully utilized, the design is not limited thereto, in other embodiments, the lower end surface of the inner barrel 3 is not provided with the second opening 35, the filter element joint 1 extends from the upper part of the outer barrel 2 to the lower part of the outer barrel 2, and the central tube 6 is communicated with the filter element joint 1 from the bottom of the outer barrel 2.
Further, the composite filter element further comprises: a partition plate 5 arranged annularly; the inner barrel 3 is arranged with a downward opening, the opening of the inner barrel 3 forms a second opening 35, the separating disc 5 is arranged at the opening of the inner barrel 3, the central tube 6 is arranged through the first opening 34 and sealed through the inner opening of the separating disc 5. It can be understood that the arrangement is beneficial to loading the second filter material 32 into the inner barrel 3 from the opening of the inner barrel 3, and the convenience of assembling the second filter material 32 with the inner barrel 3 is improved; meanwhile, the process difficulty of the inner barrel 3 is reduced, so that the production efficiency of the inner barrel 3 is improved, and the production cost of the whole composite filter element is reduced. It should be noted that the present design is not limited thereto, and in other embodiments, the second opening 35 is provided on the lower end surface of the inner barrel 3.
Referring to fig. 4, a specific filtering process of the composite filter element of the present embodiment is described below, for the external filtering channel 21, to-be-filtered water enters the first water inlet 11 of the filter element joint 1, enters the first water inlet cavity 211 through the space between the first sealing joint 15 and the inner side sealing ring rib 18, flows to the first filtering material 22 at the bottom of the outer barrel 2, is filtered by the first filtering material 22 to reach the first water outlet cavity 212, passes through the central tube 6 upward through the inner barrel 3 to flow into the third sealing joint 17, and finally flows out through the first water outlet 12 of the filter element joint 1; for the built-in filtering channel 31, the water to be filtered enters the second water inlet 13 of the filter element joint 1, enters the second water inlet cavity 311 through the space between the first sealing joint 15 and the second sealing joint 16, flows to the second filtering material 32, is filtered by the second filtering material 32 to reach the second water outlet cavity 312, passes through the space between the central tube 6 and the inner hole of the upper cover 4, flows to the space between the upper end of the central tube 6 and the second sealing joint 16, and finally flows out through the second water outlet 14 of the filter element joint 1.
Further, the inner barrel 3 is made of ABS plastic or PP plastic. It can be understood that ABS plastics and PP plastics are widely used materials in the field of composite filter elements in the prior art, and have the advantages of good sanitation, low price and the like. It should be noted that the design is not limited to this, and in other embodiments, the inner barrel 3 may also be made of other materials that do not affect the water filtration of the composite filter element.
The invention further provides a water purification device, which comprises the composite filter element, the concrete structure of the composite filter element refers to the above embodiments, and the water purification device adopts all technical schemes of all the above embodiments, so that the water purification device at least has all beneficial effects brought by the technical schemes of the above embodiments, and the details are not repeated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a composite filter element for water purification unit, its characterized in that includes:
an outer tub having an upper end opened;
an inner barrel disposed within the outer barrel;
the first filter material is positioned outside the inner barrel so as to form an external filter channel outside the inner barrel, and the second filter material is positioned inside the inner barrel so as to form an internal filter channel inside the inner barrel;
the filter element joint is provided with a first water inlet and a first water outlet which are communicated with the external filtering channel, and is also provided with a second water inlet and a second water outlet which are communicated with the internal filtering channel, wherein the filter element joint covers the upper end opening of the outer barrel, and a first-stage seal is formed at the joint of the outer barrel covered and connected by the filter element joint;
the central pipe is connected with a third sealing joint surrounding the first water outlet on the filter element joint and forms a second-stage seal at the joint of the central pipe and the third sealing joint, and the central pipe is also communicated with the inner space of the first filter material;
the filter element joint is also provided with a first annular sealing joint and a second annular sealing joint, the second sealing joint is positioned on the inner side of the first sealing joint, and the third sealing joint is positioned on the inner side of the second sealing joint;
the inner barrel is provided with an annular inner barrel joint, and the first sealing joint is connected with the inner barrel joint in a sealing way and forms a third-stage seal at the connection part;
the upper cover is arranged in the inner barrel joint and is annular, the upper cover is connected with the second sealing joint and forms a fourth-stage seal at the joint, the space between the first sealing joint and the second sealing joint is communicated with the second water inlet, and the space between the second sealing joint and the third sealing joint is communicated with the second water outlet.
2. The composite filter element of claim 1, wherein the inner barrel joint and the first sealing joint are hermetically connected by hot melt adhesive or ultrasonic.
3. The composite filter element according to claim 1, wherein a sealing ring groove is formed on the peripheral surface of the inner barrel joint, and a sealing connector is arranged in the sealing ring groove and used for sealing and connecting the inner barrel joint and the first sealing joint.
4. The composite filter element of claim 3, wherein the sealing ring groove is opened on the outer or inner peripheral surface of the inner barrel joint.
5. The composite filter element of claim 1, wherein the axial distance between the first sealing joint and the inner barrel is less than the axial distance between the second sealing joint and the inner barrel so that the first sealing joint is connected with the inner barrel joint.
6. The composite filter element of claim 1, wherein the axial distance between the second sealing joint and the inner barrel is less than the axial distance between the third sealing joint and the inner barrel so that the second sealing joint is connected with the upper cover.
7. The composite filter cartridge of claim 1, wherein the third seal joint has a shorter axial length than either of the first seal joint and the second seal joint for the third seal joint to be connected to the center tube.
8. A water purification apparatus, comprising the composite cartridge of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623134.9A CN113368571B (en) | 2017-04-06 | 2017-04-06 | Composite filter element and water purification equipment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623134.9A CN113368571B (en) | 2017-04-06 | 2017-04-06 | Composite filter element and water purification equipment |
| CN201710223347.6A CN107899280B (en) | 2017-04-06 | 2017-04-06 | Composite filter element and water purification equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710223347.6A Division CN107899280B (en) | 2017-04-06 | 2017-04-06 | Composite filter element and water purification equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113368571A CN113368571A (en) | 2021-09-10 |
| CN113368571B true CN113368571B (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110623134.9A Active CN113368571B (en) | 2017-04-06 | 2017-04-06 | Composite filter element and water purification equipment |
| CN201710223347.6A Active CN107899280B (en) | 2017-04-06 | 2017-04-06 | Composite filter element and water purification equipment |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710223347.6A Active CN107899280B (en) | 2017-04-06 | 2017-04-06 | Composite filter element and water purification equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN113368571B (en) |
| WO (1) | WO2018184546A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339308A (en) * | 2018-04-27 | 2018-07-31 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment facilities with it |
| CN110255748A (en) * | 2019-08-02 | 2019-09-20 | 珠海格力电器股份有限公司 | A kind of composite filter element component and water purification system |
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| CN204891380U (en) * | 2015-08-27 | 2015-12-23 | 佛山市韩华滤芯科技有限公司 | Cover and filter core are strained to leak protection water |
| CN205867767U (en) * | 2016-01-04 | 2017-01-11 | 佛山市云米电器科技有限公司 | Composite filter element's inlet outlet structure |
| CN105664573B (en) * | 2016-03-21 | 2018-01-16 | 福建金源泉科技发展有限公司 | A kind of washable fore filter and its application method |
| CN113368570B (en) * | 2017-03-13 | 2022-11-22 | 佛山市顺德区美的饮水机制造有限公司 | Filter element assembly and water purification system |
| CN206837592U (en) * | 2017-04-06 | 2018-01-05 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and purifier |
| CN111495006B (en) * | 2017-04-06 | 2022-03-22 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water purification equipment |
| CN206660702U (en) * | 2017-04-06 | 2017-11-24 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and purifier |
| CN206837602U (en) * | 2017-04-06 | 2018-01-05 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and purifier |
| CN107899281B (en) * | 2017-04-06 | 2021-06-29 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water purification equipment |
| CN206660704U (en) * | 2017-04-06 | 2017-11-24 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and purifier |
-
2017
- 2017-04-06 CN CN202110623134.9A patent/CN113368571B/en active Active
- 2017-04-06 CN CN201710223347.6A patent/CN107899280B/en active Active
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2018
- 2018-04-04 WO PCT/CN2018/081819 patent/WO2018184546A1/en active Application Filing
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| DE4201741A1 (en) * | 1992-01-23 | 1993-07-29 | Dynamit Nobel Ag | FILTER DEVICE FOR FILTERING A GAS FLOW |
| US5766468A (en) * | 1997-01-06 | 1998-06-16 | Baldwin Filters, Inc. | Dual media primary/secondary fuel filter |
| CN101468298A (en) * | 2007-12-27 | 2009-07-01 | 金德勇 | Composite filtering type filtering bottle |
| CN105457370A (en) * | 2016-01-04 | 2016-04-06 | 佛山市云米电器科技有限公司 | Composite filter element |
| CN205461261U (en) * | 2016-01-04 | 2016-08-17 | 北京小米移动软件有限公司 | Filter core, filter equipment and water purifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113368571A (en) | 2021-09-10 |
| CN107899280A (en) | 2018-04-13 |
| WO2018184546A1 (en) | 2018-10-11 |
| CN107899280B (en) | 2021-06-25 |
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