CN111115871B - Composite filter element and water treatment device having the same - Google Patents
Composite filter element and water treatment device having the same Download PDFInfo
- Publication number
- CN111115871B CN111115871B CN201811289499.7A CN201811289499A CN111115871B CN 111115871 B CN111115871 B CN 111115871B CN 201811289499 A CN201811289499 A CN 201811289499A CN 111115871 B CN111115871 B CN 111115871B
- Authority
- CN
- China
- Prior art keywords
- filter
- pac
- water
- cavity
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
本发明公开了一种复合滤芯和具有其的水处理装置，复合滤芯包括：壳体、第一过滤组、内管和第二过滤组，所述第一过滤组设在所述壳体内，且所述第一过滤组内限定有内置滤材安装腔，所述内管可拆卸地设在所述内置滤材安装腔内，所述第二过滤组设在所述内管内。根据本发明实施例的复合滤芯，将第二过滤组设在内管内，并将内管设在第一过滤组内，也就是说第一过滤组、内管和第二过滤组依次嵌套设置，可以充分利用第一过滤组内的空间，而且利用内管将第一过滤组和第二过滤组间隔开复合在壳体内，原来一个过滤管的空间容纳两个过滤管，节省了第一过滤组和第二过滤组的占用空间。而且可拆卸设置的内管装配简单，为第一过滤组装配提供方便。
The present invention discloses a composite filter element and a water treatment device having the same. The composite filter element comprises: a housing, a first filter group, an inner tube, and a second filter group. The first filter group is arranged in the housing, and a built-in filter material installation cavity is defined in the first filter group. The inner tube is detachably arranged in the built-in filter material installation cavity, and the second filter group is arranged in the inner tube. According to the composite filter element of the embodiment of the present invention, the second filter group is arranged in the inner tube, and the inner tube is arranged in the first filter group, that is, the first filter group, the inner tube, and the second filter group are nested in sequence, which can make full use of the space in the first filter group, and the first filter group and the second filter group are separated and composited in the housing by the inner tube. The space of the original one filter tube accommodates two filter tubes, saving the space occupied by the first filter group and the second filter group. Moreover, the detachable inner tube is easy to assemble, which provides convenience for the assembly of the first filter group.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a composite filter element and a water treatment device with the same.
Background
In the related art, a water treatment device such as a water purifying and drinking machine comprises a plurality of classifying filter elements, occupies a large space, has small flux, occupies a large indoor space, brings great inconvenience to users, and cannot meet the water demand of the users.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art.
Therefore, the invention provides the composite filter element, which has smaller volume and saves occupied space.
The invention also provides a water treatment device with the composite filter element.
An embodiment of a composite filter cartridge according to the first aspect of the invention comprises: the filter comprises a shell, a first filter group, an inner tube and a second filter group, wherein the first filter group is arranged in the shell, a built-in filter material mounting cavity is defined in the first filter group, the inner tube is detachably arranged in the built-in filter material mounting cavity, and the second filter group is arranged in the inner tube.
According to the composite filter element provided by the embodiment of the invention, the second filter group is arranged in the inner tube, and the inner tube is arranged in the first filter group, namely, the first filter group, the inner tube and the second filter group are sequentially nested, so that the space in the first filter group can be fully utilized, the first filter group and the second filter group are composited in the shell at intervals by utilizing the inner tube, the space of the original one filter tube accommodates the two filter tubes, and the occupied space of the first filter group and the second filter group is saved. Moreover, the inner tube which is detachably arranged is simple to assemble, and the assembly of the first filtering group is convenient.
According to the composite filter element of one embodiment of the invention, the first filter group is an RO filter element, the second filter group is a PAC filter element, and the wall thickness of the PAC filter element is larger than 10mm.
According to the composite filter element of one embodiment of the invention, a tap water inlet, a purified water outlet, a purified water inlet and a purified water outlet are arranged on the shell; the outer wall of the first filtering group and the inner wall of the shell define a first water purifying cavity communicated with the water purifying inlet; the inner wall of the first filtering group and the outer wall of the inner tube define a pure water cavity communicated with the pure water outlet; the inner wall of the inner tube and the outer wall of the second filtering group define a tap water cavity communicated with the tap water inlet; a second water purifying cavity communicated with the purified water outlet is defined in the second filtering group.
According to one embodiment of the invention, the first filter group comprises: the RO filter membrane is sleeved on the central tube, the annular inner cover is sleeved on the central tube, the inner periphery of the annular inner cover is connected with the upper end edge of the inner tube, and the lower end face of the annular inner cover is abutted to the upper end face of the RO filter membrane.
According to one embodiment of the invention, a downward-opening waste water tank is defined in the annular inner cover, the upper end face of the RO filter membrane is matched with the annular inner cover to seal the waste water tank to form a waste water cavity, and a waste water port communicated with the waste water cavity is formed in the top of the inner cover.
According to one embodiment of the invention, the top of the housing is provided with a waste water outlet communicating with the waste water port.
According to one embodiment of the invention, the second filter group comprises: the PAC framework is positioned in the inner pipe and extends along the axial direction of the inner pipe, the second water purifying cavity is arranged in the PAC framework, the PAC filter membrane is sleeved on the PAC framework and extends along the axial direction of the PAC framework, and the tap water cavity is limited between the outer peripheral wall of the PAC filter membrane and the inner peripheral wall of the inner pipe.
According to one embodiment of the invention, the PAC framework is tubular, an inner cavity of the PAC framework is communicated with the purified water outlet, and a purified water through hole is formed in the wall of the PAC framework.
According to one embodiment of the invention, the second filter group further comprises: the PAC annular upper end cover and the PAC lower end cover are sleeved on the upper portion of the PAC framework, the lower surface of the PAC annular upper end cover is in sealing butt against the upper end face of the PAC filter membrane, a first water through hole for communicating the tap water cavity with the tap water inlet and a second water through hole for communicating the second water purifying cavity with the purified water outlet are formed in the PAC annular upper end cover, the PAC lower end cover is sleeved on the lower portion of the PAC framework, and the upper surface of the PAC lower end cover is in sealing butt against the lower end face of the PAC filter membrane.
According to one embodiment of the invention, the peripheral edge of the PAC annular upper end cover is provided with a downward turned upper flanging, the inner wall of the upper flanging is stopped against the peripheral wall of the PAC filter membrane, the peripheral edge of the PAC lower end cover is provided with an upward turned lower flanging, and the inner wall of the lower flanging is stopped against the peripheral wall of the PAC filter membrane.
According to one embodiment of the invention, the composite filter element further comprises: the active carbon filter core, the active carbon filter core is established pure water intracavity, the active carbon filter core will pure water chamber is cut apart into be located active carbon filter core is outer raw water chamber and be located the play water cavity of active carbon filter core, play water cavity intercommunication pure water outlet.
According to one embodiment of the invention, the activated carbon filter cartridge and the inner tube are arranged in an axial direction of the first filter group.
According to one embodiment of the present invention, further comprising: the water outlet pipe penetrates through the inner pipe along the axial direction of the inner pipe, one end of the water outlet pipe is communicated with the water outlet cavity, and the other end of the water outlet pipe is communicated with the pure water outlet.
According to one embodiment of the invention, the housing comprises: barrel and lower cover, the bottom of barrel is opened, first filtration group is established in the barrel, running water entry the water purification export, the water purification entry with the pure water export is all established the top of barrel, the lower cover with the barrel links to each other in order to seal the opening of barrel, just the upper surface of lower cover with the sealed butt of lower terminal surface of first filtration group.
According to an embodiment of the invention, the central axis of the first filter group, the central axis of the second filter group, the central axis of the inner tube coincides with the central axis of the housing.
An embodiment of a water treatment device according to a second aspect of the present invention comprises a composite filter cartridge according to the above-described embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a composite filter cartridge according to an embodiment of the invention;
FIG. 2 is a schematic partial construction of a composite filter cartridge according to an embodiment of the invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is an exploded view of the mechanism of FIG. 4;
FIG. 6 is an exploded view of a housing of a composite cartridge according to an embodiment of the present invention;
FIG. 7 is a schematic illustration of the mating of an inner tube and an activated carbon cartridge in accordance with an embodiment of the present invention;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;
fig. 9 is a schematic structural view of an annular inner cap according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of an annular inner cap according to an embodiment of the present invention;
FIG. 11 is a top view of an annular inner cap according to an embodiment of the present invention;
FIG. 12 is a schematic view of the structure of a center tube according to an embodiment of the present invention;
FIG. 13 is a cross-sectional view of a center tube according to an embodiment of the present invention;
FIG. 14 is a side view of a center tube according to an embodiment of the present invention;
FIG. 15 is a schematic view of a construction of a waste water plug according to an embodiment of the present invention;
FIG. 16 is a schematic illustration of the mating relationship of a first securing structure and a first mating structure of a composite filter element assembly according to an embodiment of the invention in a first position;
FIG. 17 is an enlarged view of a portion of a first fastening structure and a first mating structure of an embodiment of the present invention when mated in a first position;
FIG. 18 is a schematic illustration of the mating relationship of a first securing structure and a first mating structure of a composite filter element assembly according to an embodiment of the invention in a second position;
FIG. 19 is an enlarged view of a portion of a first fastening structure and a first mating structure of an embodiment of the present invention when mated in a second position;
FIG. 20 is a schematic perspective view of a handle with a first mating structure according to an embodiment of the present invention;
FIG. 21 is a schematic illustration of the mating relationship of a second securing structure and a second mating structure of a composite filter element assembly according to an embodiment of the present invention in a first position;
FIG. 22 is a schematic view of a partial structure of a second fixing structure and a second plugging structure according to an embodiment of the present invention in a first position;
FIG. 23 is a schematic illustration of the mating relationship of a second securing structure and a second mating structure of a composite filter element assembly according to an embodiment of the present invention in a second position;
FIG. 24 is a schematic view illustrating a second fixing structure and a second plugging structure according to an embodiment of the present invention when the second fixing structure and the second plugging structure are mated in a second position;
FIG. 25 is a top view of a second securing structure and a second mating structure of a composite filter element assembly according to an embodiment of the invention;
Fig. 26 is a schematic perspective view of a handle with a second plugging structure according to an embodiment of the present invention.
Reference numerals:
100: a composite filter element;
10: a housing; 11: a cylinder; 111: a tap water inlet; 112: a purified water outlet; 113: a purified water inlet; 114: a pure water outlet; 115: a waste water outlet; 12: a lower cover; 13: an adapter; 14: a waste water plug; 141: a plug end; 142: a guide section; 15: a decorative cover; 16: a handle; 161: a mating structure; 1611: a first plug structure; 16111: a shaft sleeve; 16112: a guide groove; 16113: a clamping hole; 1612: a second plug structure; 16121: inserting a column; 16122: a jack; 16123: a clamping block; 17: a fixed structure; 171: a first fixed structure; 1711: a guide post; 1712: a limit column; 172: a second fixing structure; 1721: a groove; 1722: necking; 1724: a connecting column;
20: a first filter group; 21: a central tube; 211: coaming plate; 2111: a pure water through hole; 2112: a water guide groove; 212: a lower cover plate; 213: a support table; 22: RO filter membrane; 23: an annular inner cap; 231: a waste water chamber; 232: a waste water port;
30: an inner tube;
40: a second filter group; 41: PAC framework; 42: PAC filtration; 43: PAC annular upper end cap; 44: PAC lower end cap; 441: a glue blocking ring;
50: an activated carbon filter element; 51: a first water purifying cavity; 52: a pure water cavity; 521: a water outlet cavity; 522: an original pure water cavity; 53: tap water cavity; 54: a second water purifying cavity;
60: and a water outlet pipe.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A composite filter cartridge 100 and a water treatment apparatus having the same according to an embodiment of the present invention are described below with reference to fig. 1 to 15.
As shown in fig. 1 and 3, a composite filter cartridge 100 according to one embodiment of the present invention includes: the housing 10, the first filter group 20, the inner tube 30 and the second filter group 40.
Specifically, a filter chamber is defined in the housing 10, the first filter group 20 is provided in the filter chamber, and a built-in filter material installation chamber having one side opened is defined in the first filter group 20, and the inner tube 30 is detachably provided in the built-in filter material installation chamber by providing the built-in filter material installation chamber in the first filter group 20, and the second filter group 40 is provided in the inner tube 30.
Wherein, the inner tube 30 is formed in a tube shape with one end open and the other end closed, the inner tube 30 can divide the built-in filter material installation cavity into an inner cavity and an outer cavity, the second filter group 40 is arranged in the inner cavity, and because one side of the built-in filter material installation cavity is open, water flow can pass through the first filter group 20 to be filtered by the first filter group 20, can enter the inner cavity through the opening of the built-in filter material installation cavity, and passes through the filtering action of the second filter group 40.
Therefore, according to the composite filter element 100 of the embodiment of the invention, the second filter group 40 is arranged in the inner pipe 30, and the inner pipe 30 is arranged in the first filter group 20, that is, the first filter group 20, the inner pipe 30 and the second filter group 40 are sequentially nested, so that the space in the first filter group 20 can be fully utilized, the first filter group 20 and the second filter group 40 are spaced apart and compounded in the shell 10 by utilizing the inner pipe 30, the filtering effect of the composite filter element 100 is improved, the space originally containing one filter element can contain two filter pipes, and the occupied space of the first filter group 20 and the second filter group 40 is saved. And the detachably provided inner tube 30 is simply assembled, providing convenience for the assembly of the first filter group 20.
As shown in fig. 2 and 4, according to one embodiment of the present invention, the first filter group 20 is an RO cartridge and the second filter group 40 is a PAC cartridge having a wall thickness greater than 10mm.
The filtering effect of the PAC filter element is related to the wall thickness of the PAC filter element, the thicker the wall of the PAC filter element is, the better the filtering effect is, and when the wall thickness of the PAC filter element is more than 10mm, the filtering requirement of a user on water flow can be met. The filtering effect of the RO filter element is related to the area of the wound filter membrane. Therefore, a built-in filter material mounting cavity is defined in the RO filter element, the PAC filter element is arranged in the RO filter element, the volume of the PAC filter element can be reduced while the filtering effect of the PAC filter element is ensured, the occupied space of the PAC filter element can be reduced, the production materials of the PAC filter element can be reduced, the cost can be saved, the RO filter element is arranged outside the PAC filter element, the diameter of the RO filter element is larger, the wall thickness of the RO filter element can be reduced under the condition of winding the filter film with the same area, and the occupied space of the RO filter element can be reduced.
Therefore, the combined first filtering group 20 and second filtering group 40 have the smallest occupied space under the condition of meeting the filtering requirement of the composite filter element 100, can maximally improve the utilization efficiency of the inner space of the shell 10, is beneficial to reducing the volume of the composite filter element 100, and provides convenience for users.
As shown in fig. 1, according to the composite filter cartridge 100 of one embodiment of the present invention, a tap water inlet 111, a clean water outlet 112, a clean water inlet 113 and a clean water outlet 114 are provided on a housing 10, wherein the tap water inlet 111 and the clean water outlet 112 communicate with a built-in filter installation cavity.
The outer wall of the first filter group 20 and the inner wall of the housing 10 define a first water purifying chamber 51 communicating with a water purifying inlet 113, the inner wall of the first filter group 20 and the outer wall of the inner tube 30 define a water purifying chamber 52 communicating with a water purifying outlet 114, the inner wall of the inner tube 30 and the outer wall of the second filter group 40 define a tap water chamber 53 communicating with a tap water inlet 111, and the second filter group 40 defines a second water purifying chamber 54 communicating with a water purifying outlet 112.
The water flow enters the tap water cavity 53 through the tap water inlet 111, the water flow in the tap water cavity 53 enters the second water purifying cavity 54 through the filtering action of the second filtering group 40 and flows out through the water purifying outlet 112, the discharged water enters the first water purifying cavity 51 through the water purifying inlet 113 through the action of the booster pump, the water flow in the first water purifying cavity 51 enters the pure water cavity 52 through the filtering action of the first filtering group 20, and the water flow in the pure water cavity 52 flows out through the pure water outlet 114 for drinking by a user.
Wherein, the clearance between the inner wall of the shell 10 and the outer wall of the first filter group 20 is 1.2mm, the clearance between the inner wall of the first filter group 20 and the outer wall of the inner tube 30 is 1.2mm, and the clearance between the inner wall of the inner tube 30 and the outer wall of the second filter group 40 is 1.2mm. Therefore, normal water flow can be ensured, the volumes of the first filter group 20 and the shell 10 can be reduced, and the space utilization efficiency is improved.
Moreover, the first water purifying cavity 51, the second water purifying cavity 54, the tap water cavity 53 and the pure water cavity 52 are defined by the inner wall of the shell 10, the inner wall of the first filter group 20, the outer wall of the first filter group 20, the inner wall of the inner tube 30, the outer wall of the inner tube 30 and the outer wall of the second filter group 40, and the structure is simple, easy to realize, beneficial to simplifying the structural design of the composite filter element 100, and capable of reducing the production cost of the composite filter element 100.
As shown in fig. 4, in the present embodiment, the first filter group 20 includes: the central tube 21 extends along the axial direction of the shell 10, the upper end of the central tube 21 is opened to define a built-in filter material installation cavity, the inner tube 30 is arranged in the central tube 21, the pure water cavity 52 is defined between the inner wall of the central tube 21 and the outer wall of the inner tube 30, the RO filter 22 is a reverse osmosis filter, and the RO filter 22 is sleeved on the central tube 21 and extends along the axial direction of the central tube 21. The annular inner cover 23 is sleeved on the central tube 21, the inner peripheral edge of the annular inner cover 23 is in sealing contact with the upper edge of the inner tube 30, and the lower surface of the annular inner cover 23 is in sealing fit with the upper end face of the RO filter membrane 22.
Further, as shown in fig. 9 to 11, a waste water port 232 is provided on the annular inner cover 23, a waste water tank with an open lower surface is defined in the annular inner cover 23, the waste water tank extends along the circumferential direction of the annular inner cover 23, the upper end surface of the RO filter membrane 22 cooperates with the annular inner cover 23 to seal the waste water tank into a waste water cavity 231, and a waste water channel communicating the waste water cavity 231 with the waste water outlet 115 is defined in the annular inner cover 23.
The RO filter element separates out waste water in the filtering process, and can guide the waste water to be discharged by arranging the waste water port 232, the waste water cavity 231 and the waste water channel. The waste water chamber 231 is defined on the annular inner cover 23, so that waste water can be prevented from being strung into the first water purifying chamber 51, the pure water chamber 52, the tap water chamber 53 and the second water purifying chamber 54, and the quality of filtered water flow can be improved. And the waste water of RO filter core is discharged from the tip of RO filter core, is prescribing a limit to waste water chamber 231 on annular inner cup 23, can provide the convenience for waste water entering waste water chamber 231, and simple structure has eliminated the water conservancy diversion passageway between RO filter core and the waste water chamber 231 moreover, has simplified the structural design and the water route design of composite filter core 100.
Wherein, the top of casing 10 is equipped with the waste water outlet 115 of intercommunication waste water mouth 232, and waste water in the waste water chamber 231 is discharged through waste water outlet 115, is equipped with the waste water valve on the waste water outlet 115, and waste water valve and casing 10 integrated into one piece, when waste water in the waste water chamber 231 reaches certain pressure, the waste water valve is opened, waste water discharge.
As shown in fig. 7 and 8, in the present embodiment, the second filter group 40 is a PAC filter cartridge, and the second filter group 40 includes: the PAC framework 41 and the PAC filter membrane 42, the PAC framework 41 is positioned in the inner pipe 30 and extends along the axial direction of the inner pipe 30, the PAC filter membrane 42 is sleeved on the PAC framework 41 and extends along the axial direction of the PAC framework 41, the PAC filter membrane 42 is a tubular filter element made of polyaluminium chloride material, and the thickness of the PAC filter membrane 42 is greater than 10mm.
The PAC framework 41 defines a second water purifying cavity 54, the outer wall of the PAC filter 42 and the inner wall of the inner tube 30 define a tap water cavity 53, tap water enters the tap water cavity 53 through a tap water inlet 111, and water flows through the PAC filter 42 and flows out of the inner wall of the PAC framework 41 into the second water purifying cavity 54 through the filtering action of the PAC filter 42, and then flows out of the purified water outlet 112.
Since the filtering effect of the PAC filter 42 is related to the thickness of the water flowing through the PAC filter 42, the PAC filter 42 and the PAC framework 41 form the second filter set 40 and are disposed in the inner tube 30, so that the diameter of the second filter set 40 is reduced, and thus the occupied space of the second filter set 40 can be reduced, and the volume and production materials of the PAC filter 42 can be reduced, which is beneficial to reducing the cost.
Further, the PAC framework 41 is tubular, and a plurality of holes penetrating the wall of the PAC framework 41 along the thickness direction of the wall of the PAC framework 41 are formed on the wall of the PAC framework 41. By providing holes in the wall of PAC framework 41, water flow within PAC filter 42 may be facilitated through the holes into second clean water cavity 54.
As shown in fig. 3 and 8, in the present embodiment, the second filter group 40 further includes: the PAC annular upper end cover 43 and the PAC lower end cover 44, the PAC annular upper end cover 43 is sleeved at the upper end of the PAC framework 41, the lower surface of the PAC annular upper end cover 43 is in sealing contact with the upper end face of the PAC filter membrane 42, the PAC lower end cover 44 is sleeved at the lower end of the PAC framework 41, and the upper surface of the PAC lower end cover 44 is in sealing contact with the lower end face of the PAC filter membrane 42.
By arranging the PAC annular upper end cover 43 and the PAC lower end cover 44, the tightness of the upper end and the lower end of the PAC filter membrane 42 can be improved, water flow in the PAC filter membrane 42 is prevented from flowing out of the upper end or the lower end of the PAC filter membrane 42, water flow can be prevented from entering the water outlet cavity 521, and tightness of the tap water cavity 53 can be improved.
As shown in fig. 8, in this embodiment, the outer peripheral edge of the PAC annular upper end cover 43 is formed with a turned-down upper flange, the inner wall of the upper flange abuts against the outer peripheral wall of the PAC filter membrane 42, the outer wall of the upper flange and the inner wall of the inner tube 30 define a tap water channel, and water flows from the tap water inlet 111 through the tap water channel into the tap water chamber 53.
The PAC lower end cover 44 is provided with a glue blocking ring 441 on its outer peripheral edge, and the glue blocking ring 441 includes: the connecting ring extends along the circumference of the PAC lower end cover 44 and is connected with the outer circumference of the PAC lower end cover 44, the sealing ring is arranged around the PAC lower end cover 44 and extends along the axial direction of the PAC lower end cover 44, the lower circumference of the sealing ring is connected with the outer circumference of the connecting ring, and the inner circumference of the sealing ring is in sealing abutting connection with the outer circumference of the PAC filter membrane 42.
Thereby, the performance of the second filter group 40 can be improved, and the tightness and reliability of the tap water chamber 53 can be improved, preventing the leakage of water flow.
According to one embodiment of the present invention, further comprising: the active carbon filter element 50, the active carbon filter element 50 is arranged in the pure water cavity 52, the active carbon filter element 50 divides the pure water cavity 52 into a raw pure water cavity 522 positioned outside the active carbon filter element 50 and a water outlet cavity 521 positioned in the active carbon filter element 50, and the water outlet cavity 521 is communicated with the pure water outlet 114.
That is, the pure water filtered by the first filter group 20 enters the raw pure water chamber 522, and the water flow in the raw pure water chamber 522 passes through the activated carbon filter element 50 and enters the water outlet chamber 521 through the filtering action of the activated carbon filter element 50, thereby further removing impurities or peculiar smell in the water. The first filter group 20 is an RO filter element, water filtered by the RO filter element is slightly acidic, has poor taste, is not suitable for direct drinking by users, and can further improve the quality of pure water and the taste of drinking water through the filtering effect of the carbon filter element with a living core.
Moreover, the activated carbon filter element 50 is arranged in the pure water cavity 52, so that the degree of compositing of the composite filter element 100 can be further improved, the filtering effect of the composite filter element 100 on water flow is improved, and compared with the case that the activated carbon filter element 50 is independently arranged, the water flow design of the composite filter element 100 can be simplified, and the volume of the composite filter element 100 can be reduced.
As shown in fig. 8, according to an embodiment of the present invention, the activated carbon filter cartridge 50 and the inner tube 30 are arranged in the axial direction of the first filter group 20, that is, the first filter group 20 defines a built-in filter material installation cavity extending in the axial direction of the first filter group 20, the sum of the axial length of the inner tube 30 and the axial length of the activated carbon filter cartridge 50 is equal to or less than the axial length of the built-in filter material installation cavity, the activated carbon filter cartridge 50 is disposed at the bottom of the built-in filter material installation cavity, and the inner tube 30 is disposed at the top of the activated carbon filter cartridge 50.
The active carbon filter element 50 and the inner tube 30 which are axially arranged along the first filter group 20 can fully utilize the space of the built-in filter material mounting cavity, thereby being beneficial to reducing the inner diameter of the built-in filter material mounting cavity, further reducing the diameter and the volume of the first filter group 20, and the active carbon filter element 50 and the inner tube 30 with the structure have simple structure and convenient assembly.
As shown in fig. 3 and 8, according to an embodiment of the present invention, the composite filter cartridge 100 further includes a water outlet pipe 60, the water outlet pipe 60 penetrates the inner pipe 30 in the axial direction of the inner pipe 30, the water outlet pipe 60 is inserted into the PAC framework 41, one end (a lower end as shown in fig. 8) of the water outlet pipe 60 is connected to the water outlet chamber 521, the other end (an upper end as shown in fig. 8) of the water outlet pipe 60 is connected to the pure water outlet 114, and a second water purifying chamber 54 is defined between the inner wall of the PAC framework 41 and the outer wall of the water outlet pipe 60.
In this embodiment, the pure water outlet 114 is located above the inner tube 30, the water outlet chamber 521 is located in the activated carbon filter element 50 and below the inner tube 30, and by providing the water outlet tube 60, it is convenient for the water flow in the water outlet chamber 521 to flow out from the pure water outlet 114, and the water outlet tube 60 has a simple structure and is easy to implement.
In the present embodiment, the center tube 21 includes: the enclosing plate 211 and the lower cover plate 212, the enclosing plate 211 is formed into a cylinder shape with two open ends, the RO filter membrane 22 is sleeved on the enclosing plate 211, the lower cover plate 212 is arranged in the enclosing plate 211 and is positioned at the lower part of the enclosing plate 211, the lower cover plate 212 seals the lower end opening of the enclosing plate 211 and cooperates with the enclosing plate 211 to define a built-in filter material mounting cavity, and the lower end of the activated carbon filter element 50 is stopped on the upper surface of the lower end cover. That is, the central tube 21 is formed in a cylindrical shape with an open upper end and a closed lower end, and the inner wall of the shroud 211 and the upper surface of the lower end cover cooperate with the outer surface of the inner tube 30 to define the pure water chamber 52.
The wall of the central tube 21 is formed with a pure water through hole 2111, the pure water through hole 2111 penetrates through the wall of the central tube 21 in the thickness direction of the wall of the central tube 21, water flows into the RO filter membrane 22 from the lower end of the RO filter membrane 22, the RO filter membrane 22 separates the water flow filtration into wastewater and pure water, and the wastewater flows out from the upper end of the RO filter membrane 22 and is discharged through the wastewater chamber 231 and the wastewater outlet 115. Pure water flows out from the inner wall of the RO filter membrane 22 and enters the pure water chamber 52 through the pure water through-hole 2111 and is discharged for the user to drink through the pure water outlet 114.
As shown in fig. 12, a water guide groove 2112 communicating with the pure water through hole 2111 is formed in the outer peripheral wall of the shroud 211, the water guide groove 2112 is recessed inward with respect to the outer peripheral wall of the shroud 211, and the water flow filtered by the RO filter membrane 22 flows into the pure water through hole 2111 through the water guide groove 2112, is collected in the filter medium mounting chamber, and is then guided out.
Because RO filter membrane 22 winds and establishes on bounding wall 211, through setting up guiding gutter 2112 on bounding wall 211, can increase the flow efficiency of deriving rivers in the RO filter membrane 22, increase the play water efficiency of RO filter membrane 22, and then can promote the water purification efficiency of RO filter element assembly.
As shown in fig. 12, the water guiding groove 2112 extends along the circumferential direction of the coaming 211, that is, the water guiding groove 2112 is formed in a ring shape extending along the circumferential direction of the coaming 211, and the pure water through hole 2111 is provided in the water guiding groove 2112, whereby the length of the water guiding groove 2112 can be further increased, the water outlet efficiency of the RO filter membrane 22 can be further improved, the uniformity of the water outlet efficiency of the RO filter membrane 22 in the circumferential direction can be ensured, and the influence of the local water outlet blockage on the water purifying efficiency of the RO filter membrane 22 can be prevented.
The central tube 21 with the structure is closed at the lower end, so that the pure water flow can be prevented from leaking from the lower end of the pure water cavity 52, and only the tightness of the upper end of the central tube 21 needs to be paid attention to in the RO filter core assembly process.
As shown in fig. 13 and 14, in the present embodiment, the inner wall of the shroud 211 is formed with a support stand 213 protruding inward in the radial direction of the shroud 211, the support stand 213 has an upper surface, the lower end of the inner tube 30 is stopped against the upper surface of the support stand 213, and the activated carbon cartridge 50 is provided below the inner tube 30 inside the support stand 213.
Through set up on bounding wall 211 with inner tube 30 complex brace table 213, can provide convenience for the assembly of inner tube 30, brace table 213 can promote the assembly stability of inner tube 30 to the supporting role of inner tube 30, can reduce the extrusion effect of inner tube 30 to active carbon filter core 50 moreover, prevent that inner tube 30 pressure is too big from causing the damage to active carbon filter core 50, be favorable to prolonging active carbon filter core 50's life.
Further, the support stand 213 extends in the circumferential direction of the shroud 211, that is, the support stand 213 is formed in a ring shape extending in the circumferential direction of the shroud 211, the support stand 213 may also be formed in a tubular shape extending in the axial direction of the shroud 211, the lower end of the support stand 213 abuts against the upper surface of the lower end cap of the center tube 21, and the activated carbon cartridge 50 is provided in the support stand 213.
The tubular supporting stand 213 can promote the uniformity of the stress of the inner tube 30, and prevent the inner tube 30 from being damaged or inclined due to uneven local stress. Wherein, supporting bench 213, bounding wall 211 and lower extreme cap integrated into one piece, that is to say that center tube 21 is integrated into one piece, integrated into one piece's center tube 21 can promote the connection stability and the joint strength between supporting bench 213, bounding wall 211 and the lower extreme cap, and then can promote the functional stability and the reliability of center tube 21, can eliminate the coupling mechanism between supporting bench 213, bounding wall 211 and the lower extreme cap moreover, has promoted the assembly efficiency of center tube 21 and composite filter core 100, and integrated into one piece's center tube 21's intensity is big moreover, and life is longer.
As shown in fig. 6, according to an embodiment of the present invention, the housing 10 includes: the bottom of the cylinder 11 is open, the first filtering group 20 is arranged in the cylinder 11, the tap water inlet 111, the purified water outlet 112, the purified water inlet 113 and the purified water outlet 114 are all arranged at the top of the cylinder 11, the lower cover 12 is connected with the cylinder 11 to close the open mouth of the cylinder 11, and the upper surface of the lower cover 12 is in sealing abutting connection with the lower end face of the first filtering group 20.
The shell 10 is further provided with four adapters 13, the four adapters 13 are inserted into the tap water inlet 111, the purified water outlet 112, the purified water inlet 113 and the purified water outlet 114 in a one-to-one correspondence manner, convenience is provided for assembling the waterway of the composite filter element 100 by arranging the adapters 13, and the tightness of the waterway is improved.
The waste water outlet 115 is provided with a waste water plug 14, the waste water plug 114 is inserted in the waste water outlet 115, the waste water plug 14 generates a certain resistance to water in the waste water cavity 231, when the water pressure in the waste water cavity 231 reaches a preset pressure value, the waste water plug 14 is conducted, and waste water is discharged from the waste water cavity 231.
In the present embodiment, the waste water plug 14 includes: a sleeve inserted in the waste water outlet 115 and connected to the housing, and a plurality of capillaries provided on the inner wall of the sleeve and extending radially inward of the sleeve.
The capillary tubes are arranged along the circumferential direction of the sleeve to form a capillary group, and the capillary groups are filled in the sleeve along the axial direction of the sleeve. The waste water plug with the structure has the advantages of simple structure and easy manufacture, and can effectively improve the water purifying effect of the RO filter element.
As shown in fig. 15, in the present embodiment, the sleeve includes: the device comprises a plug-in section 141 and a guide section 142, wherein one end of the plug-in section 141 is plugged in the waste water outlet 115, the plug-in section 141 extends along the axial direction of the waste water outlet 115, and the guide section 142 is communicated with the other end of the plug-in section 141. Capillary tubes are provided in both the insertion section 141 and the guide section 142, or only in the insertion section 141 or the guide section 142.
The sleeve pipe of above-mentioned structure not only can increase the water pressure of waste water chamber 231, and grafting section 141 is pegged graft in waste water outlet 115 moreover, and stability and seal are better, and direction section 142 is suitable for intercommunication waste water outlet 1115 and waste water drain pipe, and wherein, direction section 142 perpendicular to grafting section 141 makes things convenient for waste water drain pipe to connect direction section 142, can provide convenience for the waste water discharge.
Wherein, the shell 10 is further provided with a decorative cover 15, the decorative cover 15 is covered on the top of the cylinder 11, and the tap water inlet 111, the purified water outlet 112, the purified water inlet 113, the purified water outlet 114 and the waste water outlet 115 are covered in the decorative cover 15, thereby improving the appearance uniformity of the composite filter element 100.
As shown in fig. 1, in this embodiment, the top of the barrel 11 is further provided with a handle 16, the side wall of the barrel 11 is provided with a first connecting point and a second connecting point which are arranged at intervals, one end of the handle 16 is connected with the first connecting point, the other end is connected with the second connecting point, when the composite filter element 100 is dismounted or assembled, a user takes and puts the composite filter element 100 by lifting 16, the operation is convenient, the stability is strong, and the handle 16 has a simple structure and is easy to realize.
Specifically, the housing 10 is provided with a fixing structure 17, the handle 16 is provided with a matching structure 161, and the matching structure 161 can be in running fit with the fixing structure 17. Through the mutual matching of the matching structure 161 and the fixing structure 17, the handle 16 can be rotatably connected to the shell 10, so that the handle 16 can be directly lifted without holding the shell 10 when the composite filter element assembly 100 is conveniently taken and put.
The engaging structure 161 has a first position and a second position in the rotation direction relative to the fixing structure 17, the engaging structure 161 is connected to the fixing structure 17 in the first position in a removable manner, and the engaging structure 161 is engaged with the fixing structure 17 in the second position to form an anti-releasing structure.
The engaging structure 161 on the handle 16 is rotatable in the fixing structure 17 and is changeable between a first position in which the engaging structure 161 is easily connected to the fixing structure 17 and a second position in which the engaging structure 161 is simply inserted into the fixing structure 17, so that the handle 16 is easily mounted on the housing 10.
In the second position, the matching structure 161 and the fixing structure 17 are mutually clamped, so that relatively firm connection is formed between the matching structure 161 and the fixing structure 17, and the lifting is convenient, and separation between the lifting handle 16 and the shell 10 in the lifting process of the lifting handle 16 is prevented.
Compared with the filter element assembly without the handle in the prior art or the filter element assembly 100 only capable of being fixedly connected with the handle 16, the composite filter element assembly 100 with the handle 16 has the advantages of convenience in installation and bearing performance in the use process after installation.
In the first position, the stop post 1712 faces the guide slot 16112 when the hub 16111 faces the guide post 1711, as shown in fig. 16 and 17. The guide post 1711 is inserted into the hub 16111 while the stop post 1712 is inserted into the guide slot 16112. That is, in the first position, the guide post 1711 and the stop post 1712 are simultaneously inserted unobstructed from the hub 16111 and the guide slot 16112, and the guide post 1711 and the stop post 1712 can be pulled out of the hub 16111 and the guide slot 16112 unobstructed, thereby facilitating the mounting of the handle 16 to the housing 10.
In the second position, as shown in fig. 18 and 19, the stop post 1712 is snapped into the snap hole 16113. That is, when the limit post 1712 rotates from the first position to the second position, the limit post 1712 is inserted into the clamping hole 16113 through the guide slot 16112, and the clamping hole 16113 prevents the limit post 1712 from moving axially.
For convenience of description, hereinafter, the fixing structure 17 mated with the first socket structure 1611 is referred to as a first fixing structure 171, and the fixing structure 17 mated with the second socket structure 1612 is referred to as a second fixing structure 172.
Furthermore, features defining "first", "second", and "third" may explicitly or implicitly include one or more such features for distinguishing between the descriptive features, and not sequentially or lightly.
Optionally, the guide slot 16112 extends in an axial direction of the hub 16111. At this time, when the sleeve 16111 is inserted into the guide post 1711, the engaging hole 16113 is moved to the position of the engaging hole 1712 by moving the sleeve 16111 in the axial direction, and then the engaging hole 17113 is engaged with the engaging hole 17113 by rotating the handle 16.
In other embodiments, the guide slot 16112 extends helically in a direction from the end to the card aperture 16113, i.e., the guide slot 16112 is a helically extending slot. When the shaft sleeve 16111 is inserted into the guide post 1711, the shaft sleeve 16111 is rotated (similar to the screwing operation) while the shaft sleeve 16111 is moved in the axial direction, so that the locking hole 16113 is moved to the position of the locking post 1712, and then the locking post 1712 is locked in the locking hole 16113 by rotating the handle 16.
Alternatively, both the guide slot 16112 and the catch hole 16113 extend through the boss 16111 in the thickness direction of the boss 16111. It is also convenient to machine the guide slot 16112 and the snap hole 16113 in the hub 16111. Of course, the present invention is not limited to this, and for example, the guide groove 16112 and the engagement hole 16113 may be provided on the inner wall of the boss 16111, and the above functions may be achieved.
In other embodiments of the present invention, as shown in fig. 21-26, the mating structure 161 is a second socket structure 1612, the second socket structure 1612 includes a socket 16121, and a fixture block 16123 is disposed at an end of the socket 16121, as shown in fig. 26, where the fixture block 16123 is disposed such that an end profile of the socket 16121 is non-circular.
In contrast, the fixing structure 17 defines a groove 1721 therein, and an end of the groove 1721 has a reduced mouth 1722, the reduced mouth 1722 being formed in a non-circular shape to fit the end of the post 16121. The formation of the reduced mouth 1722 to be non-circular in shape to accommodate the end of the post 16121 means that the end of the post 16121 conforms to the shape of the reduced mouth 1722 when the handle 16 is in the first position, although the reduced mouth 1722 is slightly larger than the end of the post 16121. The shape of the recess 1721 is not limited, as long as the post 16121 can be rotated to the second position after the post 16121 is inserted into the recess 1721, i.e., the interior of the recess 1721 cannot interfere with the latch 16123 in the second position.
In the first position, the plug 16121 can be inserted into the groove 1721 through the reduction 1722, and in the second position, the latch 16123 is clamped inside the reduction 1722.
Optionally, as shown in fig. 22, 24 and 25, the plug 16121 is provided with a coaxially disposed jack 16122, and the groove 1721 is provided with a connection post 1724, where the connection post 1724 is inserted into the jack 16122. The connecting post 1724 cooperates with the receptacle 16122 to provide a guide for the handle 16 when mounted to the housing 10 in the first position and to provide a rotational axis for the handle 16 when rotated from the first position to the second position. In addition, when the handle 16 is rotated to the second position, the connecting post 1724 may serve as a bearing bar to provide a certain supporting function.
Alternatively, as shown in fig. 22, 24 and 26, the outer contour of the end of the post 16121 is semi-circular in shape and semi-elliptical in shape, and the necked-down portion 1722 of the groove 1721 is semi-circular in shape and semi-elliptical in shape. So arranged, on the one hand, the two form a fit, and the handle 16 is easy to identify and assemble; on the other hand, the semi-elliptical end of the post 16121 has a portion with a latch 16123, which is smooth in profile and not prone to jamming, and is more conducive to stable support, so that the handle 16 is not prone to falling out of the housing 10.
In the assembly process of the composite filter element 100, the RO filter film 22 is wound on the central tube 21, then the activated carbon filter element 50 is arranged in the built-in filter material mounting cavity, then the inner tube 30 is assembled in the built-in filter material mounting cavity, the lower end of the inner tube 30 is abutted against the activated carbon filter element 50, then the water outlet tube 60 is inserted into the inner tube 30, then the second filter group 40 is sleeved on the water outlet tube 60, finally the annular inner cover 23 is covered on the central tube 21, and the water outlet tube 60 and the PAC annular upper end cover 43 extend out of the middle part of the annular inner cover 23. Then the first filtering group 20 is inserted into the cylinder 11, a first water channel, a second water channel, a third water channel, a fourth water channel and a fifth water channel are arranged on the top wall of the inner cavity of the cylinder 11, the first water channel is communicated with the pure water outlet 114 and the water outlet pipe 60, one end of the second water channel is communicated with the tap water inlet 111, and the other end is communicated with a channel between the outer peripheral wall of the PAC annular upper end cover 43 and the inner peripheral wall of the annular inner cover 23; one end of the third water channel is communicated with the purified water outlet 112, the other end is communicated with a channel between the inner peripheral wall of the PAC annular upper end cover 43 and the outer peripheral wall of the water outlet pipe 60, one end of the fourth water channel is communicated with the purified water inlet 113, the other end is communicated with a channel between the outer peripheral wall of the RO filter membrane 22 and the inner peripheral wall of the cylinder 11, and the fifth water channel is communicated with the waste water outlet 115 and the waste water outlet 232.
In the present embodiment, the central axis of the first filter group 20, the central axis of the second filter group 40, the central axis of the inner tube 30, and the central axis of the water outlet tube 60 coincide with the central axis of the housing 10. That is, the water outlet pipe 60, the second filtering group 40, the inner pipe 30, the first filtering group 20 and the housing 10 are sequentially nested, so that the occupied space of the water outlet pipe 60, the second filtering group 40, the inner pipe 30 and the first filtering group 20 can be reduced, the utilization efficiency of the internal space of the composite filter element 100 is improved, the volume of the housing 10 can be reduced, and convenience is provided for using and assembling the composite filter element 100.
A water treatment apparatus according to an embodiment of the second aspect of the present invention includes the composite filter element 100, the booster pump, and the tank described in the above embodiments.
Specifically, the tank body is provided with a water supply device, a water outlet and a water outlet, the composite filter element 100 and a booster pump are arranged in the tank body, the water supply device is communicated with a tap water inlet 111 to supply water for the water treatment device, the booster pump is communicated between a purified water outlet 112 and a purified water inlet 113 and is used for pumping water flowing out of the second purified water cavity 54 into the first purified water cavity 51 after being pressurized, the water outlet is communicated with a purified water outlet 114 to supply water for a user, and the water outlet is communicated with a waste water outlet 115 and is used for discharging waste water.
According to the water treatment device of the second aspect of the invention, the composite filter element 100 described in the embodiment is adopted, so that the volume of the water treatment device can be reduced, the occupied space can be saved, the water outlet quality can be improved, and convenience is provided for users to use.
Other constructions and operations of the water treatment apparatus according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (13)
1. A composite filter cartridge, comprising:
A housing;
The first filter group is arranged in the shell, and a built-in filter material mounting cavity is defined in the first filter group;
the inner tube is detachably arranged in the built-in filter material mounting cavity and is formed into a tube shape with one end open and the other end closed;
the second filtering group is arranged in the inner pipe;
The first filtering group comprises a central pipe, and the upper end of the central pipe is opened to define a built-in filter material mounting cavity;
The first filter group is an RO filter core, the second filter group is a PAC filter core, and the wall thickness of the PAC filter core is more than 10mm;
The first filter group includes: a pure water through hole is formed in the wall of the central tube; the RO filter membrane is sleeved on the central tube; the annular inner cover is sleeved on the central tube, the inner peripheral edge of the annular inner cover is connected with the upper end edge of the inner tube, and the lower end face of the annular inner cover is abutted against the upper end face of the RO filter membrane;
The shell is provided with a tap water inlet and a purified water outlet;
the inner wall of the inner tube and the outer wall of the second filtering group define a tap water cavity communicated with the tap water inlet;
a second water purifying cavity communicated with the purified water outlet is defined in the second filtering group;
The second filter group includes: the PAC framework is positioned in the inner pipe and extends along the axial direction of the inner pipe, and the second water purifying cavity is arranged in the PAC framework; the PAC filter membrane is sleeved on the PAC framework and extends along the axial direction of the PAC framework, and the tap water cavity is limited between the outer peripheral wall of the PAC filter membrane and the inner peripheral wall of the inner tube.
2. The composite filter element of claim 1, wherein the housing is provided with a clean water inlet and a clean water outlet;
the outer wall of the first filtering group and the inner wall of the shell define a first water purifying cavity communicated with the water purifying inlet;
The inner wall of the first filtering group and the outer wall of the inner tube define a pure water cavity communicated with the pure water outlet.
3. The composite filter element of claim 1, wherein a downwardly open waste water tank is defined in the annular inner cover, the upper end surface of the RO filter membrane cooperates with the annular inner cover to close the waste water tank to form a waste water cavity, and a waste water port communicated with the waste water cavity is formed in the top of the inner cover.
4. A composite filter element according to claim 3, wherein the top of the housing is provided with a waste water outlet communicating with the waste water port.
5. The composite filter element of claim 1, wherein the PAC framework is tubular, an inner cavity of the PAC framework is communicated with the purified water outlet, and a purified water through hole is formed in a wall of the PAC framework.
6. The composite filter element of claim 1, wherein the second filter group further comprises:
The PAC annular upper end cover is sleeved on the upper part of the PAC framework, the lower surface of the PAC annular upper end cover is in sealing contact with the upper end surface of the PAC filter membrane, and a first water through hole for communicating the tap water cavity with the tap water inlet and a second water through hole for communicating the second water purifying cavity with the purified water outlet are formed in the PAC annular upper end cover;
The PAC lower end cover is sleeved at the lower part of the PAC framework, and the upper surface of the PAC lower end cover is in sealing contact with the lower end face of the PAC filter membrane.
7. The composite filter element according to claim 6, wherein the peripheral edge of the PAC annular upper end cap is formed with a turned-down upturned rim, and an inner wall of the upturned rim abuts against the peripheral wall of the PAC filter membrane;
the peripheral edge of the PAC lower end cover is provided with a downward flanging which is turned upwards, and the inner wall of the downward flanging is stopped against the peripheral wall of the PAC filter membrane.
8. The composite filter element of claim 2, further comprising:
The active carbon filter core, the active carbon filter core is established pure water intracavity, the active carbon filter core will pure water chamber is cut apart into be located active carbon filter core is outer raw water chamber and be located the play water cavity of active carbon filter core, play water cavity intercommunication pure water outlet.
9. The composite filter element of claim 8, wherein the activated carbon filter element and the inner tube are aligned in an axial direction of the first filter group.
10. The composite filter element of claim 9, further comprising:
the water outlet pipe penetrates through the inner pipe along the axial direction of the inner pipe, one end of the water outlet pipe is communicated with the water outlet cavity, and the other end of the water outlet pipe is communicated with the pure water outlet.
11. The composite filter cartridge of claim 2, wherein the housing comprises:
The bottom of the cylinder body is open, the first filtering group is arranged in the cylinder body, and the tap water inlet, the purified water outlet, the purified water inlet and the purified water outlet are all arranged at the top of the cylinder body;
the lower cover is connected with the cylinder body to close the opening of the cylinder body, and the upper surface of the lower cover is in sealing abutting connection with the lower end face of the first filtering group.
12. The composite filter element of claim 1, wherein a central axis of the first filter group, a central axis of the second filter group, a central axis of the inner tube, and a central axis of the housing coincide.
13. A water treatment device comprising a composite filter cartridge according to any one of claims 1 to 12.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811289499.7A CN111115871B (en) | 2018-10-31 | 2018-10-31 | Composite filter element and water treatment device having the same |
| US17/288,920 US11851351B2 (en) | 2018-10-31 | 2019-10-31 | Combined filter unit and water treatment apparatus having same |
| PCT/CN2019/114625 WO2020088572A1 (en) | 2018-10-31 | 2019-10-31 | Combined filter unit and water treatment apparatus having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811289499.7A CN111115871B (en) | 2018-10-31 | 2018-10-31 | Composite filter element and water treatment device having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111115871A CN111115871A (en) | 2020-05-08 |
| CN111115871B true CN111115871B (en) | 2024-10-22 |
Family
ID=70494082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811289499.7A Active CN111115871B (en) | 2018-10-31 | 2018-10-31 | Composite filter element and water treatment device having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111115871B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704256B (en) * | 2020-07-13 | 2024-11-29 | 佛山市麦克罗美的滤芯设备制造有限公司 | Filter element and water purification system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205346995U (en) * | 2015-12-16 | 2016-06-29 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and have its composite filter element subassembly |
| CN209352649U (en) * | 2018-10-31 | 2019-09-06 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment facilities with it |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6830683B2 (en) * | 2002-04-23 | 2004-12-14 | Culligan International Company | Filter cartridge assembly with brine seal and retaining ring |
| US9101884B2 (en) * | 2010-02-18 | 2015-08-11 | NAB & Associates, Inc. | Enhanced spiral-wound membrane filtration |
| CN204224339U (en) * | 2014-10-30 | 2015-03-25 | 江苏省八杯水电器有限公司 | A kind of wall-hanging water purifier that RO membrane cartridge is set |
| WO2016095400A1 (en) * | 2014-12-19 | 2016-06-23 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter cartridge and water purification system having same |
| CN107399837A (en) * | 2016-05-20 | 2017-11-28 | 青岛经济技术开发区海尔热水器有限公司 | Integrated reverse osmosis filter element |
| CN206157147U (en) * | 2016-10-27 | 2017-05-10 | 温州维科生物实验设备有限公司 | Microbial limit filter device |
| CN207091063U (en) * | 2017-07-13 | 2018-03-13 | 佛山市顺德区美的饮水机制造有限公司 | Central tube, RO membrane cartridges and water purifier |
| CN207498155U (en) * | 2017-10-30 | 2018-06-15 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly and water purification system |
| CN207877429U (en) * | 2018-04-27 | 2018-09-18 | 芜湖美的厨卫电器制造有限公司 | Purifier and water cleaning systems |
-
2018
- 2018-10-31 CN CN201811289499.7A patent/CN111115871B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205346995U (en) * | 2015-12-16 | 2016-06-29 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and have its composite filter element subassembly |
| CN209352649U (en) * | 2018-10-31 | 2019-09-06 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment facilities with it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111115871A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209352649U (en) | Composite filter element and water treatment facilities with it | |
| CN111115881B (en) | Composite filter element components | |
| CN209307052U (en) | Composite filter element component | |
| CN209307051U (en) | Composite filter element component | |
| WO2020088572A1 (en) | Combined filter unit and water treatment apparatus having same | |
| CN111115869A (en) | Composite filter element assembly | |
| CN209797612U (en) | Composite filter element assembly at one end of water gap integration and mounting head matched with same | |
| CN111115871B (en) | Composite filter element and water treatment device having the same | |
| CN209307002U (en) | RO element kit and composite filter element, water treatment facilities with it | |
| CN209307055U (en) | Composite filter element and water treatment facilities with it | |
| CN111115872B (en) | Composite filter element and water treatment device with same | |
| CN111115757B (en) | RO filter element assembly, composite filter element with RO filter element assembly and water treatment device | |
| WO2020088556A1 (en) | Composite filter cartridge component and water treating apparatus having same | |
| WO2020088560A1 (en) | Ro filter element assembly, composite filter element having same, and water treatment device | |
| CN222700032U (en) | Water purifier with anti-drip function | |
| CN111115883B (en) | Composite filter element and water treatment device with same | |
| CN209307049U (en) | Composite filter element component | |
| CN216878230U (en) | An intelligent single-stage composite integrated RO filter bottle multi-water channel end cap assembly | |
| CN216878229U (en) | Multilayer of compound integrated RO filter core of intelligence single-stage purifies filter flask structure | |
| CN111115882B (en) | Composite filter element and water treatment device having the same | |
| CN216822853U (en) | Tea bar machine | |
| CN213668159U (en) | A faucet water purifier | |
| CN111115873B (en) | Composite filter element and water treatment device having the same | |
| CN114367141B (en) | Multi-waterway end cover assembly of single-stage composite integrated RO filter element filter flask | |
| CN209322575U (en) | A kind of composite filter element for integrating a variety of filter cores |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |