CN110404329B - Filter element assembly, composite filter element and water purification equipment - Google Patents
Filter element assembly, composite filter element and water purification equipment Download PDFInfo
- Publication number
- CN110404329B CN110404329B CN201810396559.9A CN201810396559A CN110404329B CN 110404329 B CN110404329 B CN 110404329B CN 201810396559 A CN201810396559 A CN 201810396559A CN 110404329 B CN110404329 B CN 110404329B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 239000002131 composite material Substances 0.000 title claims abstract description 48
- 238000000746 purification Methods 0.000 title claims abstract description 7
- 238000002955 isolation Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims description 32
- 238000000926 separation method Methods 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 230000010354 integration Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
Abstract
The invention discloses a filter element assembly, a composite filter element and water purification equipment, wherein the filter element assembly comprises a first filter element, a second filter element and an isolation assembly, and a first filter cavity is formed in the isolation assembly; the first filter element is positioned in the first filter cavity, and the second filter element is positioned outside the first filter cavity and is arranged above or below the isolation component; at least one of the first filter element and the second filter element comprises at least two stages of filter materials, and the at least two stages of filter materials are cylindrical and are distributed along the radial direction. The technical scheme of the invention can effectively improve the integration degree of the filter element structure in the water purifying equipment, thereby improving the convenience of a user for disassembling and assembling the filter element structure.
Description
Technical Field
The invention relates to the technical field of water purification products, in particular to a filter element assembly, a composite filter element and water purification equipment.
Background
The existing water purifying equipment is provided with a filter element structure, in order to further protect the filter element structure, a pretreatment filter element (used for coarse filtration) is generally arranged in a first filtering waterway, in order to further improve water quality and obtain better taste, and a post-treatment filter element (used for fine filtration) is generally arranged in a post-treatment filtering waterway. However, the pretreatment filter element and the post-treatment filter element are usually two independent units, so that the integration degree is low, and the installation is inconvenient.
Disclosure of Invention
The invention mainly aims to provide a filter element assembly, and aims to solve the technical problems of low integration degree and inconvenient installation of a filter element structure of water purifying equipment in the prior art.
In order to achieve the above purpose, the filter element assembly provided by the invention comprises a first filter element, a second filter element and an isolation assembly, wherein a first filter cavity is formed in the isolation assembly;
the first filter element is positioned in the first filter cavity, and the second filter element is positioned outside the first filter cavity and is arranged above or below the isolation component; wherein,
at least one of the first filter element and the second filter element comprises at least two stages of filter materials, and the at least two stages of filter materials are cylindrical and are distributed along the radial direction.
Preferably, the second filter cartridge comprises the at least two stages of filter media.
Preferably, the at least two stages of filter materials corresponding to the same filter element include a roll-type filter material and a granular filter material.
Preferably, the isolation assembly comprises an inner barrel and a separation disc which is fixed at the lower end of the inner barrel in a sealing mode, and the second filter element is arranged below the isolation assembly.
Preferably, the isolation assembly further comprises a barrel cover and an upper cover, the barrel cover is fixed at the upper end of the inner barrel in a sealing mode, a first opening is formed in the barrel cover, the upper cover is arranged in the first opening, the upper cover is provided with a second opening, a first flow channel is formed between the inner side face of the barrel cover and the outer side face of the upper cover at intervals, and the inner side space of the first filter element is communicated with the second opening and forms a second flow channel.
Preferably, the filter element assembly further comprises a water guide pipe, the upper end of the water guide pipe penetrates through the second opening, the second flow channel is formed between the outer peripheral surface of the water guide pipe and the inner space of the first filter element, a third flow channel is formed between the outer peripheral surface of the water guide pipe and the periphery of the second opening, and the third flow channel is communicated with the second flow channel;
the lower extreme of aqueduct runs through the separation dish sets up, perhaps be equipped with on the separation dish and correspond the water hole of aqueduct, the lower extreme butt of aqueduct the upper periphery of water hole sets up, in order to communicate the inboard space of second filter core.
Preferably, the water guide pipe is abutted to the upper periphery of the water passing hole, an annular water guide part is arranged on the lower disc surface of the separation disc, the lower end of the annular water guide part is communicated with the inner space of the second filter element, and the lower end of the water guide pipe is communicated with the upper end of the annular water guide part.
Preferably, the filter cartridge assembly further comprises a lower cover located on the underside of the divider disk, the second filter cartridge being mounted between the lower cover and the divider disk.
Preferably, the end face of the first filter element is in sealing fit with the inner wall face of the inner barrel, the upper end face of the second filter element is in sealing fit with the lower disc face of the separation disc, and the lower end face of the second filter element is in sealing fit with the upper side face of the lower cover.
Preferably, the filter element assembly further comprises a filter vat, the separation disc is fixed at the upper end of the filter vat in a sealing mode, a second filter cavity is formed in the filter vat, the second filter element is arranged in the second filter cavity, and a water passing port communicated with the second filter cavity is formed in the side wall or the bottom wall of the filter vat.
The invention also provides a composite filter element, which comprises a shell and a filter element assembly, wherein the filter element assembly comprises a first filter element, a second filter element and an isolation assembly, and a first filter cavity is formed in the isolation assembly;
the first filter element is positioned in the first filter cavity, and the second filter element is positioned outside the first filter cavity and is arranged above or below the isolation component; wherein,
at least one of the first filter element and the second filter element comprises at least two stages of filter materials, and the at least two stages of filter materials are cylindrical and are distributed along the radial direction;
the filter element assembly is arranged in the shell, a second filter cavity is formed between the shell and the isolation assembly, and the first filter cavity and the second filter cavity are mutually independent; the second filter element is arranged in the second filter cavity.
The invention also provides a composite filter element, which comprises a shell and a filter element assembly, wherein the filter element assembly comprises a first filter element, a second filter element and an isolation assembly, and a first filter cavity is formed in the isolation assembly;
the first filter element is positioned in the first filter cavity, and the second filter element is positioned outside the first filter cavity and is arranged above or below the isolation component; wherein,
at least one of the first filter element and the second filter element comprises at least two stages of filter materials, and the at least two stages of filter materials are cylindrical and are distributed along the radial direction;
the isolation assembly comprises an inner barrel and a separation disc which is fixed at the lower end of the inner barrel in a sealing way, and the second filter element is arranged below the isolation assembly;
the filter element assembly further comprises a filter barrel, the separation disc is fixed at the upper end of the filter barrel in a sealing mode, a second filter cavity is formed in the filter barrel, the second filter element is arranged in the second filter cavity, and a water passing port communicated with the second filter cavity is formed in the side wall or the bottom wall of the filter barrel;
the filter element assembly is arranged in the shell, and a runner communicated with the water gap is formed between the inner wall surface of the shell and the outer wall surfaces of the isolation assembly and the filter vat.
The invention also provides water purifying equipment, which comprises a composite filter element, wherein the composite filter element comprises a shell and a filter element component; the filter element assembly comprises a first filter element, a second filter element and an isolation assembly, wherein a first filter cavity is formed in the isolation assembly;
the first filter element is positioned in the first filter cavity, and the second filter element is positioned outside the first filter cavity and is arranged above or below the isolation component; wherein,
at least one of the first filter element and the second filter element comprises at least two stages of filter materials, and the at least two stages of filter materials are cylindrical and are distributed along the radial direction;
the filter element assembly is arranged in the shell, a second filter cavity is formed between the shell and the isolation assembly, and the first filter cavity and the second filter cavity are mutually independent; the second filter element is arranged in the second filter cavity.
The invention also provides water purifying equipment, which comprises a composite filter element, wherein the composite filter element comprises a shell and a filter element assembly, the filter element assembly comprises a first filter element, a second filter element and an isolation assembly, and a first filter cavity is formed in the isolation assembly;
the first filter element is positioned in the first filter cavity, and the second filter element is positioned outside the first filter cavity and is arranged above or below the isolation component; wherein,
at least one of the first filter element and the second filter element comprises at least two stages of filter materials, and the at least two stages of filter materials are cylindrical and are distributed along the radial direction;
the isolation assembly comprises an inner barrel and a separation disc which is fixed at the lower end of the inner barrel in a sealing way, and the second filter element is arranged below the isolation assembly;
the filter element assembly further comprises a filter barrel, the separation disc is fixed at the upper end of the filter barrel in a sealing mode, a second filter cavity is formed in the filter barrel, the second filter element is arranged in the second filter cavity, and a water passing port communicated with the second filter cavity is formed in the side wall or the bottom wall of the filter barrel;
the filter element assembly is arranged in the shell, and a runner communicated with the water gap is formed between the inner wall surface of the shell and the outer wall surfaces of the isolation assembly and the filter vat.
According to the filter element assembly, the first filter element is arranged in the first filter cavity of the isolation assembly, and the second filter element is arranged outside the first filter cavity of the isolation assembly, so that the mutual independence of the spaces where the two filter elements are positioned is realized; the filter element is applied to the composite filter element, so that a first filter cavity and a second filter cavity which are mutually independent are formed in the shell of the composite filter element, namely, the composite filter element is provided with two independent filter channels, the respective filtration of two water qualities is realized, and the filtration requirements of users on multiple water qualities are met; meanwhile, as the composite filter element is integrated with a plurality of filter channels, the number of the composite filter elements in the water purifying equipment is reduced, on one hand, the waterway connection inside the water purifying equipment is simplified, the convenience of disassembling and assembling the composite filter elements by a user is improved, on the other hand, the inner space of the water purifying equipment is reduced, and the volume of the water purifying equipment is reduced so as to adapt to the light and small development trend 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 that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a filter element assembly of the present invention;
FIG. 2 is an exploded view of the cartridge assembly of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the cartridge assembly of FIG. 2;
FIG. 4 is a schematic top view of the cartridge assembly of FIG. 2;
FIG. 5 is a schematic view of an embodiment of a composite filter element of the present invention;
FIG. 6 is a schematic view of another embodiment of a filter cartridge assembly of the present invention;
FIG. 7 is an exploded view of the cartridge assembly of FIG. 6;
FIG. 8 is a schematic cross-sectional view of the cartridge assembly of FIG. 6;
FIG. 9 is a schematic top view of the cartridge assembly of FIG. 6;
FIG. 10 is a schematic view of another embodiment of the composite filter element of the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Shell body | 11 | Filter element joint |
| 12 | Outer barrel | 13 | Second filter cavity |
| 131 | Sixth flow passage | 132 | Fourth flow passage |
| 133 | Fifth flow passage | 2 | Isolation assembly |
| 21 | Inner barrel | 211 | Inner barrel body |
| 212 | Barrel cover | 212a | A first opening |
| 212b | Flow guiding rib | 212c | Support convex rib |
| 212d | Sealed slot | 22 | Separating disc |
| 221 | Water passing hole | 23 | First filter cavity |
| 231 | First flow channel | 232 | Second flow passage |
| 233 | Third flow passage | 24 | Upper cover |
| 241 | A second opening | 3 | First filter element |
| 4 | Second filter element | 41 | Outer filter material |
| 42 | Inner filter material | 5 | Water guide pipe |
| 51 | Strip-shaped convex rib | 6 | Lower cover |
| 7 | Filter vat | 71 | Water passing port |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a composite filter element which can be applied to water purifying equipment such as a kitchen water purifier, a household water purifier and the like.
In an embodiment of the present invention, referring to fig. 1 to 5, the composite filter cartridge includes a housing 1 and a filter cartridge assembly provided in the housing 1, the filter cartridge assembly including a spacer assembly 2, a first filter cartridge 3, and a second filter cartridge 4;
the isolation assembly 2 is arranged in the shell 1, a first filter cavity 23 is formed in the isolation assembly 2, a second filter cavity 13 is formed between the shell 1 and the isolation assembly 2, and the first filter cavity 23 and the second filter cavity 13 are mutually independent;
the first filter element 3 is arranged in the first filter cavity 23, and the second filter element 4 is arranged in the second filter cavity 13.
It will be appreciated that the housing 1 has a first water inlet and a first water outlet communicating with the first filter chamber 23, and a second water inlet and a second water outlet communicating with the second filter chamber 13, the first filter cartridge 3 being located between the first water inlet and the first water outlet, the second filter cartridge 4 being located between the second water inlet and the second water outlet; it can be appreciated that, by arranging in this way, two completely independent water purifying waterways are formed in the same shell 1 of the composite filter element, and the filter element can be conveniently applied to the situation that water needs to be purified twice, such as pre-filtering and post-filtering. It should be noted that the technical solution of the present invention is not limited to the housing 1, but only relates to the structure and waterway relationship in the filter element assembly, and the filter element assembly can be applied to other filter element structures except the composite filter element.
According to the technical scheme, the isolation assembly 2 is arranged in the shell 1, so that the first filter cavity 23 and the second filter cavity 13 which are mutually independent are formed in the shell 1, namely, the composite filter element is provided with two independent filter channels, the two water qualities are respectively filtered, and the filtering requirements of users on the multiple water qualities are met; meanwhile, as the composite filter element is integrated with a plurality of filter channels, the number of the composite filter elements in the water purifying equipment is reduced, on one hand, the waterway connection inside the water purifying equipment is simplified, the convenience of disassembling and assembling the composite filter elements by a user is improved, on the other hand, the inner space of the water purifying equipment is reduced, and the volume of the water purifying equipment is reduced so as to adapt to the light and small development trend of the water purifying equipment.
In this embodiment, referring to fig. 2 and 3, the isolation assembly 2 includes an inner barrel 21, a separation disc 22 and an upper cover 24, the inner barrel 21 includes an inner barrel body 211 in a cylindrical shape along an up-down direction and a barrel cover 212 with an opening at an upper end of the inner barrel body 211 being provided with a sealing cover, the separation disc 22 seals the opening at a lower end of the inner barrel body 211, the barrel cover 212 has a first opening 212a, the upper cover 24 is provided in the first opening 212a, the upper cover 24 has a second opening 241, the first filter element 3 is in a cylindrical shape and is provided in the inner barrel 21, the first opening 212a and the second opening 241 are both located in an annular opening of the first filter element 3, an upper end surface of the first filter element 3 is in sealing fit with an inner side surface of the upper cover 24, and a lower end surface is in sealing fit with an upper side surface of the separation disc 22.
With respect to the waterway of the first filter cavity 23, referring to fig. 3, a first flow channel 231 is formed between the inner side surface of the barrel cover 212 and the outer side surface of the upper cover 24 at intervals, the inner space of the first filter element 3 is communicated with the second opening 241 to form a second flow channel 232, in this embodiment, the first water inlet is communicated with the first flow channel 231, and the first water outlet is communicated with the second flow channel 232, so that water to be filtered enters the composite filter element through the first water inlet, passes through the first flow channel 231 and enters the inner barrel 21, passes through the first filter element 3, and then exits the inner barrel 21 through the second flow channel 232 and exits the composite filter element through the first water outlet; of course, in other embodiments, the first water outlet may also be in communication with the first flow channel 231, and the first water inlet may be in communication with the second flow channel 232, which is not limited thereto. Specifically, the inner side surface of the barrel cover 212 is radially provided with a plurality of guide ribs 212b, the bottom surface of the guide rib 212b is abutted against the outer side surface of the upper cover 24, and water passing between adjacent guide ribs 212b can be realized; of course, in other embodiments, the guide rib 212b may be disposed on the upper side of the upper cover 24, which is not limited thereto.
In addition, in order to reduce the overall radial dimension of the composite filter element so as to achieve a compact design of the composite filter element, in this embodiment, the first filter element 3 and the second filter element 4 are arranged in the up-down direction.
Specifically, referring to fig. 3, the lower side surface of the separation disc 22 is spaced from the bottom wall surface of the housing 1, so as to avoid a space for installing the second filter element 4, the second filter element 4 is in a cylindrical shape, the upper end surface of the second filter element 4 is in sealing fit with the lower side surface of the separation disc 22, in this embodiment, the filter element assembly further includes a lower cover 6 disposed at the bottom wall surface of the housing 1, and the lower end surface of the second filter element 4 is in sealing fit with the upper side surface of the lower cover 6, however, in other embodiments, the lower end surface of the second filter element 4 may also be directly in sealing fit with the bottom wall surface of the housing 1. It should be noted that the present design is not limited thereto, and in other embodiments, the second filter element 4 may be disposed around the first filter element 3, that is, the second filter element 4 may be disposed around the inner barrel 21.
In this embodiment, referring to fig. 3, a gap is left between the outer wall surface of the inner barrel 21 and the inner wall surface of the housing 1, the filter element assembly further includes a water guide tube 5, the water guide tube 5 is vertically penetrating through the inner barrel 21, the upper end of the water guide tube 5 penetrates through the second opening 241, a gap is left between the outer circumferential surface of the water guide tube 5 and the periphery of the second opening 241, and the lower end of the water guide tube 5 is in butt joint with the water passing holes 221 correspondingly formed in the separation disc 22 (in other embodiments, the lower end of the water guide tube 5 can also penetrate through the separation disc 22) so as to be communicated with the inner space of the second filter element 4.
With respect to the waterway of the second filter chamber 13, referring to fig. 3, a sixth flow passage 131 is formed between the outer wall surface of the inner tub 21 and the inner wall surface of the casing 1, a fourth flow passage 132 is formed between the lower side surface of the separation plate 22 and the upper side surface of the lower cover 6, and a fifth flow passage 133 is formed in the water guide pipe 5; in this embodiment, the second water inlet is communicated with the sixth flow channel 131, and the second water outlet is communicated with the fifth flow channel 133, so that water to be filtered enters the composite filter element through the second water inlet, passes through the sixth flow channel 131 to reach the first filter element 3, reaches the fourth flow channel 132 after being filtered by the first filter element 3, reaches the second water outlet through the fifth flow channel 133, and is discharged from the composite filter element through the second water outlet; of course, in other embodiments, the second water inlet may also be in communication with the fifth flow channel 133, and the second water outlet may be in communication with the sixth flow channel 131, which is not limited thereto.
It can be understood that after the water guide pipe 5 is introduced, the first water inlet, the first water outlet, the second water inlet and the second water outlet are all arranged at the same end (upper end) of the shell 1, so that the connection of an external waterway is convenient; of course, in other embodiments, the first water inlet, the first water outlet, the second water inlet, and the second water outlet may be separately disposed at two ends of the housing 1, and the design is not limited thereto. In addition, in this embodiment, the housing 1 includes an outer barrel 12 that is opened upwards and a filter element connector 11 that is adapted to cover the opening of the outer barrel 12, and the first water inlet, the first water outlet, the second water inlet and the second water outlet are formed on the filter element connector 11 and are arranged along a radial direction; of course, in other embodiments, the filter element joint 11 may be replaced by a waterway plate, and the waterway plate is formed with a first water inlet, a first water outlet, a second water inlet and a second water outlet, which is not limited thereto. After the water guide pipe 5 is introduced, the upper end of the water guide pipe 5 penetrates the second opening 241, the second flow passage 232 is formed at an interval between the outer peripheral surface of the water guide pipe 5 and the inner side surface of the first filter element 3, and the third flow passage 233 is formed at an interval between the outer peripheral surface of the water guide pipe 5 and the periphery of the second opening 241, and in this embodiment, the third flow passage 233 communicates the second flow passage 232 with the first water outlet.
In this embodiment, referring to fig. 3, the first filter element 3 is a front filter element, and the second filter element 4 is a rear filter element; the specific water purifying process of the composite filter element is as follows: the water to be filtered enters the first filter cavity 23 through the first water inlet of the filter element joint 11, flows out from the first water outlet of the filter element joint 11 after coarse filtration of the first filter element 3, enters the second filter cavity 13 through the second water inlet of the filter element joint 11, and flows out from the second water outlet of the filter element joint 11 after fine filtration of the second filter element 4. Of course, in other embodiments, the first filter element 3 may be a post-filter element, and the second filter element 4 may be a pre-filter element, which is not limited thereto.
In order to prevent water from flowing between the first filter cavity 23 and the second filter cavity 13 of the composite filter element, the invention carries out relevant improvement on the tightness among all structures in the composite filter element: first, the circumference of the first opening 212a of the barrel cover 212 extends upwards to form a barrel cover 212 joint, the circumference of the second opening 241 of the upper cover 24 extends upwards to form an upper cover 24 joint, the inner side surface of the filter element joint 11 corresponds to the barrel cover 212 joint, the upper cover 24 joint and the upper end of the water guide pipe 5 and is provided with a sealing ring edge correspondingly, and the upper side surface of the separation disc 22 also corresponds to the lower end of the water guide pipe 5 and is provided with a sealing ring edge; in this embodiment, a sealing structure is further provided between each sealing ring edge and the corresponding connection structure, for example, but not limited to, the sealing structure is a combination of a sealing ring groove and an elastic sealing ring; the second inner tub 21 body 211 and the separation disc 22 are integrally formed, and the annular water guiding portion and the separation disc 22 are integrally formed, however, in other embodiments, the separation disc 22 and the inner tub 21 body 211 may be detachably connected, and the design is not limited thereto.
In order to better promote the convenience of disassembly and assembly of each structure in the composite filter element, the invention also carries out the following related improvements: the outer edge of the filter element joint 11 is provided with the annular slot, and the open end of the outer barrel 12 is in sealing connection with the annular slot, so that a user can conveniently disassemble and assemble the filter element joint 11, and the convenience of maintaining or replacing the filter element joint 11 is improved; second, the lower side circumference of the barrel cover 212 is formed with a sealing slot 212d, the upper open end of the inner barrel 21 main body 211 is inserted into the sealing slot 212d in a sealing way, so that the barrel cover 212 is convenient for a user to disassemble and assemble, and the convenience for the user to replace the first filter element 3 is improved; of course, in other embodiments, the lid 212 may be integrally formed with the body 211 of the inner barrel 21.
In addition, referring to fig. 2, in order to improve the reliability of the installation of the barrel cover 212, in this embodiment, the outer side surface of the barrel cover 212 is further provided with a plurality of supporting ribs 212c in a protruding manner, and the outer side surface of the supporting ribs 212c is arranged in contact with the inner side surface of the filter element joint 11; of course, in other embodiments, the outer side surface of the supporting rib 212c may also be abutted against the inner wall surface of the outer barrel 12, and the design is not limited thereto.
Further, at least one of the first filter element 3 and the second filter element 4 includes at least two stages of filter media. It can be understood that the arrangement can effectively improve the filtering effect of the composite filter element or meet different water purifying demands of users; for example, in the existing water purifying equipment only adopting the granular filter materials, users often find the problem that the first cup of water contains filter material particles in the use process, and the drinking experience of the users is seriously affected; in this embodiment, the first filter element 3 and/or the second filter element 4 are/is configured to include a granular filter material and a coiled filter material, and the coiled filter material is located at the rear side of the water path of the granular filter material, so that the coiled filter material can effectively block the filter material particles, thereby avoiding the occurrence of the above problems.
Further, in this embodiment, at least two stages of filter materials corresponding to the same filter element are arranged in a cylindrical shape and along a radial direction. It can be understood that the arrangement just needs to divide the cylindrical filter element made of single filter material into two-stage different filter materials along the radial direction, has little influence on the original water path, reduces the overall design difficulty of the composite filter element, improves the production efficiency of the composite filter element, and the radial arrangement mode can fully utilize the radial space below the separation disc 22 to avoid increasing the overall height of the composite filter element. It should be noted that, in other embodiments, at least two stages of filter materials corresponding to the same filter element are cylindrical and arranged vertically.
In this embodiment, referring to fig. 3, the first filter element 3 is a front filter element, and the second filter element 4 is a rear filter element, so the second filter element 4 should have a better filtering effect than the first filter element 3, so the second filter element 4 is composed of at least two filter materials. In the present embodiment, the second filter element 4 includes an outer filter material 41 and an inner filter material 42, and preferably, the outer filter material 41 is a granular filter material and the inner filter material 42 is a roll-type filter material. In this embodiment, the outer filter material 41 is a carbon rod, and the inner filter material 42 is PP cotton, so that the water to be filtered entering the second filter cavity 13 is attached with carbon powder after passing through the carbon rod, but in the process of continuing to pass through the PP cotton, the carbon powder is filtered by the PP cotton, so that the problem that the first cup of water is black when a user drinks water is effectively avoided. Of course, in other embodiments, the outer filter 41 may be embodied as other granular filter, and the inner filter 42 may be embodied as other coiled filter, but the design is not limited thereto. In the present embodiment, the lower end of the water guide pipe 5 is abutted against the upper periphery of the water passing hole 221 of the partition plate 22 to communicate with the inner space of the inner filter 42, however, in other embodiments, the lower end of the water guide pipe 5 may penetrate through the partition plate 22 and extend into the inner space of the inner filter 42, and the design is not limited thereto.
It can be understood that, in the present embodiment, the outer peripheral surface of the water conduit 5 is convexly provided with a plurality of strip-shaped ribs 51, the extending direction of the strip-shaped ribs 51 is consistent with the axial direction of the water conduit 5, the upper ends of the strip-shaped ribs 51 are abutted against the periphery of the second opening 241, and the outer side surfaces of the strip-shaped ribs 51 can be effectively abutted against the inner side surfaces of the coiled filter material, so that the outer peripheral surface of the water conduit 5 is prevented from being tightly attached to the outer peripheral surface of the water conduit 5, and the formation of a flow passage is hindered; of course, in other embodiments, the outer peripheral surface of the water guide tube 5 may be specifically provided with other rib structures, and the design is not limited thereto. In this embodiment, the water guide pipe 5 and the upper cover 24 are integrally formed, so as to effectively simplify the overall structure of the composite filter element, however, in other embodiments, the water guide pipe 5 and the upper cover 24 may be separately arranged, and the design is not limited thereto.
Example 2
According to another embodiment of the composite filter element according to the present invention, referring to fig. 6 to 10, the difference from embodiment 1 is that the filter element assembly does not include the lower cover 6, but includes a filter drum 7, the upper end of the filter drum 7 is sealed and fixed with a separation disc 22, the second filter chamber 13 is formed in the filter drum 7, the sixth flow passage 131 is formed by spacing the outer wall surface of the filter element and isolation assembly 2 from the inner wall surface of the housing 1, and the second filter element 4 is disposed in the second filter chamber 13. It can be appreciated that so set up, on the one hand, improve the installation convenience of second filter core 4, on the other hand, the inside water route that can form of filter vat 7 to realize the diversified arrangement of the multistage filter media of second filter core 4.
Further, the bottom wall of the filter vat 7 is provided with a water outlet 71 communicating the sixth flow passage 131 with the inside of the filter vat 7, in this embodiment, the water outlet 71 is a water inlet for water to be filtered to enter the filter vat 7, however, in other embodiments, the water outlet 71 may be a water outlet for water to be filtered to flow out of the filter vat 7; the bottom end surface of the second filter element 4 is covered at the water passing port 71 to better ensure that the second filter element 4 fully plays a filtering role, and simultaneously prevent water to be filtered from directly reaching the water guide pipe 5 without passing through the second filter element 4. It should be noted that the present design is not limited to this, and in other embodiments, the water passing port 71 is provided on the sidewall of the filter vat 7. In the present embodiment, the shape of the water outlet 71 is not limited, and may be a hole or a slit.
The invention also provides a water purifying device which comprises the composite filter element, and the specific structure of the composite filter element refers to the embodiment, and as the water purifying device adopts all the technical schemes of all the embodiments, the water purifying device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. The filter element assembly is used for a composite filter element and is characterized by comprising a first filter element, a second filter element and an isolation assembly, wherein a first filter cavity is formed in the isolation assembly;
the first filter element is positioned in the first filter cavity, and the second filter element is positioned outside the first filter cavity and is arranged above or below the isolation component; wherein,
at least one of the first filter element and the second filter element comprises at least two stages of filter materials, and the at least two stages of filter materials are cylindrical and are distributed along the radial direction;
the isolation assembly comprises an inner barrel and a separation disc which is fixed at the lower end of the inner barrel in a sealing way, and the second filter element is arranged below the isolation assembly; the isolation assembly further comprises a barrel cover and an upper cover, the barrel cover is fixed at the upper end of the inner barrel in a sealing mode, a first opening is formed in the barrel cover, the upper cover is arranged in the first opening, the upper cover is provided with a second opening, a first flow channel is formed between the inner side face of the barrel cover and the outer side face of the upper cover at intervals, and the inner side space of the first filter element is communicated with the second opening and forms a second flow channel.
2. The filter cartridge assembly of claim 1, wherein the second filter cartridge comprises the at least two-stage filter media.
3. The filter cartridge assembly of claim 1, wherein the at least two stages of filter media corresponding to the same filter cartridge comprise a coiled filter media and a granular filter media.
4. The filter element assembly of claim 1, further comprising a water conduit having an upper end that is threaded through the second opening, the second flow passage being formed between an outer peripheral surface of the water conduit and an interior space of the first filter element, a third flow passage being formed between an outer peripheral surface of the water conduit and a periphery of the second opening, the third flow passage being in communication with the second flow passage;
the lower extreme of aqueduct runs through the separation dish sets up, perhaps be equipped with on the separation dish and correspond the water hole of aqueduct, the lower extreme butt of aqueduct the upper periphery of water hole sets up, in order to communicate the inboard space of second filter core.
5. The filter cartridge assembly of claim 1, further comprising a lower cap positioned on an underside of the divider disk, the second filter cartridge being mounted between the lower cap and the divider disk.
6. The filter element assembly of claim 5, wherein an end face of the first filter element is in sealing engagement with an inner wall surface of the inner tub, an upper end face of the second filter element is in sealing engagement with a lower disc face of the divider disc, and a lower end face of the second filter element is in sealing engagement with an upper side face of the lower cover.
7. The filter element assembly of claim 1, further comprising a filter cartridge, wherein the divider plate is sealingly secured to an upper end of the filter cartridge, wherein a second filter chamber is formed in the filter cartridge, wherein the second filter element is disposed in the second filter chamber, and wherein a sidewall or bottom wall of the filter cartridge is provided with a water port communicating with the second filter chamber.
8. A composite filter element for water purification equipment, which is characterized by comprising a shell and a filter element assembly as claimed in any one of claims 1 to 6, wherein the filter element assembly is arranged in the shell, a second filter cavity is formed between the inner wall surface of the shell and the outer wall surface of the isolation assembly, and the first filter cavity and the second filter cavity are mutually independent; the second filter element is arranged in the second filter cavity.
9. A composite filter element for water purifying equipment, which is characterized by comprising a shell and the filter element assembly as claimed in claim 7, wherein the filter element assembly is arranged in the shell, and a runner communicated with the water passing port is formed between the inner wall surface of the shell and the outer wall surfaces of the isolation assembly and the filter barrel.
10. A water purification apparatus comprising a composite filter element as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396559.9A CN110404329B (en) | 2018-04-27 | 2018-04-27 | Filter element assembly, composite filter element and water purification equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396559.9A CN110404329B (en) | 2018-04-27 | 2018-04-27 | Filter element assembly, composite filter element and water purification equipment |
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| CN110404329A CN110404329A (en) | 2019-11-05 |
| CN110404329B true CN110404329B (en) | 2024-02-20 |
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| EP4319898A1 (en) * | 2021-04-08 | 2024-02-14 | 3M Innovative Properties Company | Filter cartridge and filter having same |
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| CN101234828A (en) * | 2008-02-19 | 2008-08-06 | 天津大学 | Integrated electroplating treatment method for waste water |
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| CN208372625U (en) * | 2018-04-27 | 2019-01-15 | 芜湖美的厨卫电器制造有限公司 | Element kit, composite filter element and purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2412613A1 (en) * | 2002-11-22 | 2004-05-22 | Mcn Bioproducts Inc. | Filtration of viscous oilseed slurries |
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| CN101234828A (en) * | 2008-02-19 | 2008-08-06 | 天津大学 | Integrated electroplating treatment method for waste water |
| CN101799400A (en) * | 2009-02-05 | 2010-08-11 | 浙江雷畴科技有限公司 | Online optical liquid detection analysis device |
| CN101832197A (en) * | 2010-04-22 | 2010-09-15 | 上海齐耀动力技术有限公司 | Automatic working medium air supplement mechanism for normal pressure air thermomotor |
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| CN110404329A (en) | 2019-11-05 |
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