CN110404331B - Composite filter element and water purifying equipment - Google Patents
Composite filter element and water purifying equipment Download PDFInfo
- Publication number
- CN110404331B CN110404331B CN201810396612.5A CN201810396612A CN110404331B CN 110404331 B CN110404331 B CN 110404331B CN 201810396612 A CN201810396612 A CN 201810396612A CN 110404331 B CN110404331 B CN 110404331B
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- filter element
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- flow passage
- shell
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 239000002131 composite material Substances 0.000 title claims abstract description 61
- 238000002955 isolation Methods 0.000 claims abstract description 41
- 238000000926 separation method Methods 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 31
- 238000001914 filtration Methods 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002245 particle Substances 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
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition 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
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a composite filter element and water purifying equipment, wherein the composite filter element comprises a shell, an isolation assembly, a first filter element and a second filter element; the isolation assembly is arranged in the shell, a first filter cavity is formed in the isolation assembly, 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 first filter element is arranged in the first filter cavity, and the second filter element is arranged in the second filter cavity; 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; a first flow passage is formed between the outer wall surface of the inner barrel and the inner wall surface of the shell at intervals, and a second flow passage is formed between the lower disc surface of the separation disc and the inner wall surface of the shell at intervals. 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 field of water purifying equipment, in particular to a composite filter element and water purifying 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 composite filter element, 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 composite filter element provided by the invention comprises a shell, an isolation assembly, a first filter element and a second filter element;
the isolation assembly is arranged in the shell, a first filter cavity is formed in the isolation assembly, 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 first filter element is arranged in the first filter cavity, and the second filter element is arranged in the second filter cavity; 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; a first flow passage is formed between the outer wall surface of the inner barrel and the inner wall surface of the shell at intervals, and a second flow passage is formed between the lower disc surface of the separation disc and the inner wall surface of the shell at intervals.
Preferably, the composite filter element further comprises an upper cover, the upper end of the inner barrel is provided with a first opening, the upper cover is arranged at the first opening, the upper cover is provided with a second opening, a third flow channel is formed between the inner side surface of the upper end of the inner barrel and the outer side surface 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 fourth flow channel.
Preferably, the composite filter element further comprises a water guide pipe, the water guide pipe penetrates through the second opening and the separation disc, a fifth flow passage is formed in the water guide pipe and is communicated with the second flow passage, a fourth flow passage is formed between the outer peripheral surface of the water guide pipe and the inner side surface of the first filter element at intervals, a sixth flow passage is formed between the outer peripheral surface of the water guide pipe and the periphery of the second opening at intervals, and the sixth flow passage is communicated with the fourth flow passage.
Preferably, the lower disc surface of the separation disc is provided with an annular water guide part, the lower end of the water guide pipe is communicated with the annular water guide part, and the annular water guide part is provided with a seventh flow passage communicated with the second flow passage and the fifth flow passage.
Preferably, the first filter element and the second filter element are both in cylindrical arrangement, the lower end face of the first filter element is in sealing fit with the upper disc face of the separation disc, and the upper end face of the second filter element is in sealing fit with the lower disc face of the separation disc.
Preferably, the inner tub and the separation disc are integrally formed.
The invention also provides a composite filter element, which comprises a shell, an isolation assembly, a first filter element and a second filter element;
the isolation assembly is arranged in the shell, a first filter cavity is formed in the isolation assembly, 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 first filter element is arranged in the first filter cavity, and the second filter element is arranged in the second filter cavity; 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;
at least one of the first filter element and the second filter element includes at least two stages of filter media.
Preferably, the at least two stages of filter materials corresponding to the same filter element are in a cylindrical shape and are distributed along the radial direction.
Preferably, the at least two stages of filter materials corresponding to the same filter element are arranged vertically.
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 composite filter element further comprises a water guide pipe, the upper end of the water guide pipe penetrates through the upper end of the inner barrel, the lower end of the water guide pipe penetrates through the separation disc, or the separation disc is provided with a water passing hole corresponding to the water guide pipe, and the lower end of the water guide pipe is abutted to the upper periphery of the water passing hole.
The invention also provides water purifying equipment, which comprises a composite filter element, wherein the composite filter element comprises:
the filter comprises a shell, an isolation assembly, a first filter element and a second filter element;
the isolation assembly is arranged in the shell, a first filter cavity is formed in the isolation assembly, 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 first filter element is arranged in the first filter cavity, and the second filter element is arranged in the second filter cavity; 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; a first flow passage is formed between the outer wall surface of the inner barrel and the inner wall surface of the shell at intervals, and a second flow passage is formed between the lower disc surface of the separation disc and the inner wall surface of the shell at intervals.
The invention also provides water purifying equipment, which comprises a composite filter element, wherein the composite filter element comprises: the filter comprises a shell, an isolation assembly, a first filter element and a second filter element;
the isolation assembly is arranged in the shell, a first filter cavity is formed in the isolation assembly, 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 first filter element is arranged in the first filter cavity, and the second filter element is arranged in the second filter cavity; 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;
at least one of the first filter element and the second filter element includes at least two stages of filter media.
According to the technical scheme, the isolation assembly is arranged in the shell, so that the first filter cavity and the second filter cavity which are mutually independent are formed in the filter shell, 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.
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 a composite filter element according to an embodiment of the present invention;
FIG. 2 is a schematic view of the composite filter element of FIG. 1 from another perspective;
FIG. 3 is a schematic view of FIG. 2 taken along line III-III;
FIG. 4 is a schematic view of the structure of the inner tub and the divider disk of FIG. 3;
FIG. 5 is a schematic view of the lid of FIG. 3;
FIG. 6 is a schematic view of the structure of the upper cover and the water guide pipe in FIG. 3;
FIG. 7 is a schematic top view of the upper cap and water conduit of FIG. 6;
FIG. 8 is a schematic view of another embodiment of a composite filter element according to 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 | First flow channel | 132 | Second flow passage |
| 133 | Fifth flow passage | 134 | Seventh 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 | Annular water guide part |
| 222 | Water passing hole | 23 | First filter cavity |
| 231 | Third flow passage | 232 | Fourth flow passage |
| 233 | Sixth 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 |
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 invention, referring to fig. 1 to 7, the composite filter cartridge comprises a housing 1, an isolation 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.
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. 3 to 5, 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 third 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 fourth flow channel 232, in this embodiment, the first water inlet is communicated with the third flow channel 231, and the first water outlet is communicated with the fourth flow channel 232, so that water to be filtered enters the composite filter element through the first water inlet, passes through the third flow channel 231 and enters the inner barrel 21, passes through the first filter element 3, and then leaves the inner barrel 21 through the fourth flow channel 232 and leaves 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 third flow channel 231, and the first water inlet may be in communication with the fourth 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 composite filter element 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 in sealing fit with the bottom wall surface of the housing 1 directly. 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 to 7, a gap is left between the outer wall surface of the inner barrel 21 and the inner wall surface of the housing 1, the composite filter element 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 is disposed through the second opening 241, the outer peripheral surface of the water guide tube 5 is spaced from the periphery of the second opening 241, the lower end of the water guide tube 5 is in butt joint with the water passing holes 222 correspondingly disposed on the separation disc 22 (in other embodiments, the lower end of the water guide tube 5 may also be disposed through the separation disc 22) so as to communicate with the inner space of the second filter element 4.
Regarding the waterway of the second filter chamber 13, a first flow passage 131 is formed between the outer wall surface of the inner tub 21 and the inner wall surface of the housing 1, a second 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 first 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 first flow channel 131 to reach the first filter element 3, reaches the second 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 is in communication with the first flow channel 131, which is not limited thereto.
It can be understood that, referring to fig. 3, 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 fourth 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 sixth 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 sixth flow passage 233 communicates the fourth flow passage 232 with the first water outlet.
In order to improve the water purifying efficiency of the second filter cavity 13, referring to fig. 3, in the present embodiment, an annular water guiding portion 221 is disposed on the lower side surface of the partition plate 22, the water passing holes 222 are located in an annular region of the annular water guiding portion 221, and a seventh flow passage 134 is formed in the annular water guiding portion 221 to communicate the second flow passage 132 with the fifth flow passage 133; in order to better enhance the water guiding effect of the annular water guiding portion 221, in this embodiment, the radial dimension of the annular water guiding portion 221 is larger than the pipe diameter of the water guiding pipe 5.
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 inner barrel 21 body and the separation disc 22 are integrally formed, and the annular water guiding portion 221 and the separation disc 22 are integrally formed, however, in other embodiments, the separation disc 22 and the inner barrel 21 body 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 body is in sealing connection with the sealing slot 212d, so that the barrel cover 212 is convenient for a user to disassemble and assemble, and the convenience of the user for replacing the first filter element 3 is improved; of course, in other embodiments, the lid 212 may be integrally formed with the body of the inner barrel 21.
In addition, referring to fig. 5, 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. In order to prevent the first filter element 3 from being tightly attached to the outer peripheral surface of the water conduit 5, in this embodiment, a plurality of strip-shaped ribs 51 are arranged on the outer peripheral surface of the water conduit 5 at intervals, 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 it is understood that the arrangement is such that, on one hand, the outer side surface of the strip-shaped ribs 51 can effectively resist the inner side surface of the first filter element 3, so as to prevent the inner side surface from being tightly attached to the outer peripheral surface of the water conduit 5; on the other hand, the strip-shaped ribs 51 can also play a role in guiding water flow, so that the filtering efficiency of the first filter cavity 23 is improved. 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.
Based on the technical scheme of double waterway integration, the invention further provides a composite filter element.
Referring to fig. 8, the composite filter cartridge includes a housing 1, 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; 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. In this embodiment, the difference between the composite filter element and the previous composite filter element (the previous subject) is that the filter element filter material of the composite filter element is more diversified, and the structural composition and the waterway flow direction of the other composite filter elements are basically consistent, which is not described herein.
Further, referring to fig. 8, in this embodiment, at least two stages of filter materials corresponding to the same filter element are arranged in a tubular 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, the water to be filtered sequentially passes through the first filter cavity 23 and the second filter cavity 13, that is, the first filter element 3 is a front filter element, and the second filter element 4 is a rear filter element, so, compared with the first filter element 3, the second filter element 4 should have better filtering effect, 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 PP, 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 222 of the separation disc 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 separation disc 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, a plurality of strip-shaped ribs 51 are disposed on the outer peripheral surface of the water conduit 5 at intervals, the extending direction of the strip-shaped ribs 51 is consistent with the axial direction of the water conduit 5, and the outer side surface of the strip-shaped ribs 51 can effectively abut against the inner side surface of the coiled filter material to prevent the filter material from being tightly attached to the outer peripheral surface of the water conduit 5, thereby preventing the formation of a flow passage; 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.
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 (6)
1. A composite filter element is used for water purifying equipment and is characterized by comprising a shell, an isolation assembly, a first filter element and a second filter element;
the isolation assembly is arranged in the shell, a first filter cavity is formed in the isolation assembly, 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 first filter element is arranged in the first filter cavity, and the second filter element is arranged in the second filter cavity; 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; a first flow passage is formed between the outer wall surface of the inner barrel and the inner wall surface of the shell at intervals, and a second flow passage is formed between the lower disc surface of the separation disc and the inner wall surface of the shell at intervals;
the composite filter element further comprises an upper cover and a water guide pipe, wherein the upper end of the inner barrel is provided with a first opening, the upper cover is arranged at the first opening, the upper cover is provided with a second opening, the water guide pipe penetrates through the second opening and the separation disc, a fifth flow channel is formed in the water guide pipe, an annular water guide part is arranged on the lower disc surface of the separation disc, the lower end of the water guide pipe is communicated with the annular water guide part, and a seventh flow channel which is communicated with the second flow channel and the fifth flow channel is formed in the annular water guide part.
2. The composite filter cartridge of claim 1, wherein a third flow passage is formed between an inner side surface of the upper end of the inner tub and an outer side surface of the upper cover, and wherein an inner space of the first filter cartridge communicates with the second opening and forms a fourth flow passage.
3. The composite filter cartridge of claim 2, wherein the fourth flow passage is defined by a spacing between the outer peripheral surface of the water conduit and the inner side surface of the first filter cartridge, and wherein a sixth flow passage is defined by a spacing between the outer peripheral surface of the water conduit and the periphery of the second opening, the sixth flow passage being in communication with the fourth flow passage.
4. The composite filter element of claim 1, wherein the first filter element and the second filter element are both arranged in a cylindrical shape, a lower end surface of the first filter element is in sealing fit with an upper disc surface of the separation disc, and an upper end surface of the second filter element is in sealing fit with a lower disc surface of the separation disc.
5. A composite filter element as claimed in any one of claims 1 to 4 wherein the inner basket and the divider disc are integrally formed.
6. A water purification apparatus comprising a composite filter element according to any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810396612.5A CN110404331B (en) | 2018-04-27 | 2018-04-27 | Composite filter element and water purifying equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396612.5A CN110404331B (en) | 2018-04-27 | 2018-04-27 | Composite filter element and water purifying equipment |
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| CN110404331A CN110404331A (en) | 2019-11-05 |
| CN110404331B true CN110404331B (en) | 2024-02-20 |
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| CN201810396612.5A Active CN110404331B (en) | 2018-04-27 | 2018-04-27 | Composite filter element and water purifying equipment |
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| CN110404331A (en) | 2019-11-05 |
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