CN114159880B - Front filter element of composite filter element and composite filter element with front filter element - Google Patents
Front filter element of composite filter element and composite filter element with front filter element Download PDFInfo
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- CN114159880B CN114159880B CN202110621320.9A CN202110621320A CN114159880B CN 114159880 B CN114159880 B CN 114159880B CN 202110621320 A CN202110621320 A CN 202110621320A CN 114159880 B CN114159880 B CN 114159880B
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- filter element
- water pipe
- pure water
- composite
- adapter
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- 239000002131 composite material Substances 0.000 title claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 115
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 62
- 230000002093 peripheral effect Effects 0.000 claims abstract description 24
- 238000011045 prefiltration Methods 0.000 claims description 55
- 238000004891 communication Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 14
- 230000002035 prolonged effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000000071 blow moulding Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- 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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a preposed filter element of a composite filter element and the composite filter element with the preposed filter element, the preposed filter element of the composite filter element comprises: leading a filter material; the pure water pipe is arranged in the front filter material and is an extruded flat pipe fitting with the peripheral surface; the upper end cover comprises an upper cover body, an adapter and an upper positioning piece, wherein an upper mounting hole is formed in the upper cover body, the upper positioning piece is arranged in the upper mounting hole, an upper pure water pipe through hole is formed in the adapter, an upper positioning groove is formed in the inner peripheral surface of the upper pure water pipe through hole, the upper positioning piece is matched in the upper positioning groove, and the upper end of the pure water pipe is matched in the upper pure water pipe through hole; the upper sealing ring is matched in the upper positioning groove and axially clamped between the upper positioning piece and the upper positioning groove, and the upper sealing ring is sleeved outside the pure water pipe; and a lower end cover. The preposed filter element of the composite filter element has the advantages of long service life and the like.
Description
Technical Field
The invention relates to the technical field of electric appliance manufacturing, in particular to a preposed filter element of a composite filter element and the composite filter element with the preposed filter element of the composite filter element.
Background
The composite filter element in the related art is characterized in that the front filter element, the rear filter element and the main filter element are combined in one composite filter element, but the service life of the front filter element is shorter than that of the main filter element and the rear filter element, and the composite filter element is required to be replaced regularly based on the service life of the front filter element during replacement, so that the composite filter element is frequently replaced, the inconvenience is caused, and the use cost of a user is increased.
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 preposed filter element of the composite filter element, which has the advantages of long service life and the like.
The invention also provides a composite filter element with the preposed filter element of the composite filter element.
To achieve the above object, an embodiment according to a first aspect of the present invention proposes a pre-cartridge of a composite cartridge, the pre-cartridge of the composite cartridge comprising: leading a filter material; the pure water pipe is arranged in the front filter material, and is an extruded flat pipe fitting with the outer peripheral surface; the upper end cover is arranged at the upper end of the front filter material and comprises an upper cover body, an adapter and an upper positioning piece, an upper mounting hole is formed in the upper cover body, the upper positioning piece is arranged in the upper mounting hole, an upper pure water pipe through hole is formed in the adapter, an upper positioning groove is formed in the inner peripheral surface of the upper pure water pipe through hole, the upper positioning piece is matched in the upper positioning groove, and the upper end of the pure water pipe is matched in the upper pure water pipe through hole; the upper sealing ring is matched in the upper positioning groove and axially clamped between the upper positioning piece and the upper positioning groove, and the upper sealing ring is sleeved outside the pure water pipe; the lower end cover is arranged at the lower end of the front filter material.
The preposed filter element of the composite filter element has the advantages of long service life and the like.
In addition, the pre-filter element of the composite filter element according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the upper positioning groove is communicated with the lower end face of the adapter.
According to one embodiment of the invention, the inner peripheral surface of the upper positioning groove is further provided with a mounting groove communicated with the lower end surface of the adapter, the outer peripheral surface of the upper positioning piece is provided with a positioning ring table, and the positioning ring table is stopped against the inner top surface of the mounting groove.
According to one embodiment of the invention, the inner peripheral surface of the mounting groove is provided with a rotary clamping groove and a communication groove, the communication groove is communicated with the rotary clamping groove and the lower end surface of the adapter, the upper positioning piece is provided with a first rotary buckle, and the first rotary buckle is suitable for penetrating through the communication groove and is further matched in the rotary clamping groove through relative rotation of the upper positioning piece and the adapter.
According to one embodiment of the invention, the upper positioning piece is provided with a second rotary buckle, the upper cover body is provided with a rotary positioning rib, the rotary positioning rib is provided with a notch, and the second rotary buckle is suitable for penetrating through the notch and further stopping on the rotary positioning rib through relative rotation of the upper positioning piece and the upper cover body.
According to one embodiment of the invention, the upper sealing ring is a plurality of and axially arranged.
According to one embodiment of the present invention, the pre-filter includes an inner filter and an outer filter.
According to one embodiment of the invention, the inner layer filter material is a wet-formed composite activated carbon filter material, and the outer layer filter material is a folded PP filter material.
According to one embodiment of the invention, the adapter is sleeved with a second sealing ring, and the outer peripheral surface of the upper cover body is sleeved with a third sealing ring.
An embodiment according to the second aspect of the invention proposes a composite filter cartridge comprising a pre-filter cartridge of a composite filter cartridge according to an embodiment of the first aspect of the invention.
The composite filter element according to the embodiment of the invention has the advantages of long service life and the like by utilizing the preposed filter element of the composite filter element according to the embodiment of the first aspect of the invention.
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 pre-filter of a composite filter cartridge according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 4 is an exploded view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 5 is a partial cross-sectional view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 6 is a partial schematic view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 7 is a partial schematic view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 8 is a partial schematic view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 9 is a partial schematic view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 10 is a partial cross-sectional view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 11 is a partial cross-sectional view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 12 is a partial schematic view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 13 is a partial cross-sectional view of a pre-cartridge of a composite cartridge according to an embodiment of the present invention.
Fig. 14 is a schematic structural view of a composite filter cartridge according to an embodiment of the invention.
Fig. 15 is a cross-sectional view of a composite filter cartridge according to an embodiment of the invention.
Fig. 16 is a cross-sectional view of a composite filter cartridge according to an embodiment of the invention.
Fig. 17 is an exploded view of a composite cartridge according to an embodiment of the present invention.
Reference numerals: the filter cartridge comprises a composite filter cartridge 1, a pre-filter cartridge 10 of the composite filter cartridge, a pre-filter material 100, an inner filter material 110, an outer filter material 120, a pure water pipe 200, an upper end cover 300, an upper cover body 310, a rotary positioning rib 311, a notch 312, an upper mounting hole 313, an upper positioning piece 320, a first rotary buckle 321, a second rotary buckle 322, a positioning ring 323, an adapter 330, an upper pure water pipe through hole 331, an upper positioning groove 332, a mounting groove 333, a rotary clamping groove 334, a communication groove 335, an upper sealing ring 340, a second sealing ring 350, a third sealing ring 360, a lower end cover 400, a lower cover body 410, a lower pure water pipe through hole 411, a lower positioning groove 412, an axial positioning groove 413, a circumferential positioning groove 414, a lower positioning piece 420, an axial positioning buckle 421, a circumferential positioning boss 422, a lower sealing ring 430, a fourth sealing ring 440, a waterway adapter cover 20, a handle 21, a decorative cover 22, an adapter 23, main filter adapter covers 30, 40, a rear filter material 50, a rear end cover 51, a main filter material 60, an inner cylinder 70, and an outer cylinder 80.
Detailed Description
The present application is made based on the discovery and recognition by the inventors of the following facts and problems:
the composite filter element in the related art is characterized in that the front filter element, the rear filter element and the main filter element are combined in one composite filter element, but the service life of the front filter element is shorter than that of the main filter element and the rear filter element, and the composite filter element is required to be replaced regularly based on the service life of the front filter element during replacement, so that the composite filter element is frequently replaced, the inconvenience is caused, and the use cost of a user is increased.
Specifically, the composite filter element in the related art has smaller fillable volume of the front filter element and smaller dirt receiving area, so that the service life of the composite filter element is shorter.
For example, taking a composite filter element with RO membrane as the main filter element, the life of the RO membrane filter element exceeds two years, and if the pre-filter element adopts PAC filter element, the life is only one year. Thus resulting in a composite filter element that needs to be replaced one year.
Therefore, the inventor of the application finds that, through a great deal of research, in the composite filter element in the related art, a pure water pipe of a pre-filter element is convenient for setting a sealing ring, and a ring groove and other structures are required to be arranged on the outer peripheral surface to position the sealing ring. In order to form the annular groove on the outer circumferential surface of the pipe wall, the pure water pipe is formed by adopting a blow molding process, on one hand, the pipe diameter of the pure water pipe formed by the blow molding process is larger, the outer diameter of the pure water pipe can reach more than 10 millimeters, the fillable volume of the front filter material is influenced, the sewage containing area is reduced, and on the other hand, in order to form the annular groove and other structures, the pipe wall is required to ensure a certain thickness, the fillable volume of the front filter material is further influenced, and the sewage containing area is reduced.
Further research has shown that, since the pure water pipe is an extruded and formed pipe with a flat outer peripheral surface, the sealing ring is difficult to position on the pure water pipe, and the sealing ring is possibly not in place or is shifted after being installed, so that the tightness is affected.
The applicant of the present application has further studied and found that if the positioning groove for positioning the seal ring is directly formed by the inner peripheral surfaces of the adapter and the lower end cap, the seal ring is difficult to mount.
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 pre-cartridge 10 of a composite cartridge according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 17, the pre-filter cartridge 10 of the composite filter cartridge according to the embodiment of the present invention includes a pre-filter material 100, a pure water pipe 200, an upper end cap 300, and a lower end cap 400 (the up-down direction is shown by arrows in the drawing and is for convenience of description only, and is not limited to the actual arrangement direction).
The outer diameter of the clear water pipe 200 is 4-8 mm.
According to the pre-filter element 10 of the composite filter element provided by the embodiment of the invention, compared with the pre-filter element in the related art, the outer diameter of the pure water pipe 200 is 4-8 mm, the space occupied by the pure water pipe 200 can be reduced, the fillable volume of the pre-filter material 100 is increased, the dirt receiving area of the pre-filter material 100 is increased, and therefore, the service life of the pre-filter element 10 is prolonged.
The pure water pipe 200 is arranged in the front filter material 100, and the pure water pipe 200 is an extruded flat pipe fitting with the peripheral surface. The upper end cap 300 is provided at the upper end of the front filter 100, and the upper end of the pure water pipe 200 is fitted in the upper end cap 300. The lower end cap 400 is provided at the lower end of the front filter 100, and the lower end of the pure water pipe 200 is fitted in the lower end cap 400.
Specifically, "plain water pipe 200 is an extrusion-molded outer circumferential flat pipe. "means that the outer circumferential surface of the pure water pipe 200 is flat, and no structure for positioning the sealing ring is provided.
According to the pre-filter element 10 of the composite filter element disclosed by the embodiment of the invention, the pure water pipe 200 is made into the extruded and formed outer peripheral surface flat pipe fitting, compared with the pure water pipe which is formed by blow molding and is provided with the sealing ring positioning structure on the outer peripheral surface in the related technology, on the one hand, the extrusion and forming can be convenient for reducing the pipe diameter and the pipe wall thickness of the pure water pipe 200, so that the space occupied by the pure water pipe 200 is reduced, the fillable volume of the pre-filter material 100 is increased, the dirt receiving area of the pre-filter material 100 is increased, on the other hand, the outer peripheral surface of the pure water pipe 200 is flat, and the structure for positioning the sealing ring is not arranged, so that the space occupied by the positioning structures can be saved, the pipe wall thickness of the pure water pipe 200 is convenient to reduce, the fillable volume of the pre-filter material 100 is increased, the dirt receiving area is increased, and the service life of the pre-filter element 10 is prolonged.
Therefore, the pre-filter element 10 of the composite filter element according to the embodiment of the invention has the advantages of long service life and the like.
Specifically, the outer diameter of the clear water pipe 200 is 5-7 mm. Here preferably 6 mm. Thereby, the outer diameter size of the pure water pipe 200 can be further conveniently controlled, and the space occupied by the pure water pipe 200 can be further conveniently reduced, so that the service life of the pre-filter element 10 of the composite filter element is prolonged.
Advantageously, the pure water pipe has an inner diameter of 2-6 mm. Thereby, the water flow rate in the pure water pipe 200 can be conveniently ensured, and the water outlet flow rate of the front filter element 10 of the composite filter element can be ensured.
More advantageously, the inner diameter of the plain water pipe 200 is 3-5 mm. Here preferably 4 mm. It is thereby further facilitated to ensure the water flow rate of the pure water pipe 200, thereby further ensuring the water flow rate of the pre-cartridge 10 of the composite cartridge.
Specifically, as shown in fig. 2 and 3, the outer circumferential surface of the pure water pipe 200 is spaced apart from the inner circumferential surface of the pre-filter 100. Specifically, as shown in fig. 3, raw water enters the outside of the pre-filter 100 through a raw water inlet, enters between the pre-filter 100 and the pure water pipe 200 through the filtration of the pre-filter 100, and is discharged through a pre-water outlet. Thus, the front water can be conveniently and smoothly discharged.
More specifically, as shown in fig. 1 to 6, the upper end cap 300 includes at least an adapter 330, and the upper end of the pure water pipe 200 is fitted in the adapter 330. In this way, the pure water pipe 200 and the pure water outlet can be communicated by the adapter 330, so that the pure water can be discharged conveniently.
Advantageously, as shown in fig. 5 and 11, an upper sealing ring 340 is provided between the adapter 330 and the pure water pipe 200, and a lower sealing ring 430 is provided between the lower end cap 400 and the pure water pipe 200. The sealability between the pure water pipe 200 and the adapter 330 and between the pure water pipe 200 and the lower end cap 400 can be improved.
The present application is made based on the discovery and recognition by the inventors of the following facts and problems:
further studies by the inventors of the present application have found that since the plain water pipe 200 is an extruded flat pipe member with an outer peripheral surface, it is difficult to position the seal ring on the plain water pipe 200, and there is a possibility that the seal ring is not in place or is displaced after installation, resulting in an influence on sealability.
More advantageously, as shown in fig. 5 and 11, the adaptor 330 has an upper positioning groove 332 therein, the lower end cap 400 has a lower positioning groove 412 therein, the upper sealing ring 340 is fitted in the upper positioning groove 332, and the lower sealing ring 430 is fitted in the lower positioning groove 412. Therefore, a structure for positioning the sealing ring can be formed on the adapter 330 and the lower end cover 400, on one hand, a positioning structure is not required to be formed on the pure water pipe 200, the pipe diameter of the pure water pipe 200 is convenient to control, on the other hand, the positioning effect on the sealing ring can be improved conveniently, the sealing ring is prevented from being installed in place or shifted after being installed, and the sealing effect of the sealing ring is ensured.
The present application is made based on the discovery and recognition by the inventors of the following facts and problems:
further studies by the applicant of the present application have found that if the upper and lower positioning grooves 332 and 412 are directly formed by the inner circumferential surfaces of the adapter 330 and the lower cap 400, the sealing ring installation is difficult.
Advantageously, as shown in fig. 5 to 10, the upper end cap 300 includes an upper cap body 310, an adapter 330, and an upper positioning member 320, wherein an upper mounting hole 313 is provided in the upper cap body 310, the upper positioning member 320 is mounted in the upper mounting hole 313, an upper pure water pipe through hole 331 is provided on the adapter 330, an upper positioning groove 332 is provided on an inner circumferential surface of the upper pure water pipe through hole 331, the upper positioning member 320 is fitted in the upper positioning groove 332, and an upper end of the pure water pipe 200 is fitted in the upper pure water pipe through hole 331. The upper sealing ring 340 is fitted in the upper positioning groove 332 and axially clamped between the upper positioning member 320 and the upper positioning groove 332, and the upper sealing ring 340 is sleeved outside the pure water pipe 200. Specifically, during installation, the upper sealing ring 340 may be first installed into the upper positioning groove 332, and then the upper positioning element 320 and the adapter 330 are installed together, so that the upper positioning element 320 and the upper positioning groove 332 of the adapter 330 clamp the upper sealing ring 340, and positioning of the upper sealing ring 340 is achieved. Therefore, the upper end cover 300 can be arranged into a plurality of split parts, and compared with the technical scheme that the positioning groove is directly formed on the inner peripheral surface of the adapter 330, the upper sealing ring 340 can be conveniently installed.
More advantageously, the upper positioning groove 332 communicates with the lower end surface of the adapter 330, and the upper seal ring 340 is clamped between the inner top surface of the upper positioning groove 332 and the upper end surface of the upper positioning member 320. In this way, the upper sealing ring 340 can be installed into the upper positioning groove 332 through the lower end surface of the adapter 330 during installation, thereby further facilitating the installation of the upper sealing ring 340.
Specifically, as shown in fig. 5 to 10, the inner circumferential surface of the upper positioning groove 332 is further provided with a mounting groove 333 communicating with the lower end surface of the adapter 330, and the outer circumferential surface of the upper positioning member 320 is provided with a positioning ring stand 323, and the positioning ring stand 323 abuts against the inner top surface of the mounting groove 333. Thus, the upper positioning piece 320 can be conveniently installed, the relative positions of the upper positioning piece 320 and the adapter 330 can be conveniently ensured by utilizing the positioning ring table 323, the installation in place can be conveniently ensured, and the stability after the installation can be conveniently improved.
More specifically, as shown in fig. 5 to 10, the inner circumferential surface of the mounting groove 333 is provided with a rotation clamping groove 334 and a communication groove 335, the communication groove 335 communicates the rotation clamping groove 334 with the lower end surface of the adapter 330, the upper positioning member 320 is provided with a first rotation buckle 321, and the first rotation buckle 321 is adapted to pass through the communication groove 335 and further fit in the rotation clamping groove 334 by the relative rotation of the upper positioning member 320 and the adapter 330. This may facilitate the installation of the upper fixture 320 and the adapter 330.
Further, as shown in fig. 5-10, the upper positioning member 320 is provided with a first rotation buckle 321, the upper cover 310 is provided with a rotation positioning rib 311, the rotation positioning rib 311 is provided with a notch 312, and the second rotation buckle 322 is adapted to pass through the notch 312 and further stop on the rotation positioning rib 311 by the relative rotation of the upper positioning member 320 and the upper cover 310. This can facilitate the installation of the upper retainer 320 and the upper cover 310.
Specifically, the first rotation buckle 321 and the second rotation buckle 322 may be two.
Optionally, as shown in fig. 5, the upper seal ring 340 is plural and axially aligned. Specifically, the upper seal ring 340 may be two. This can further improve the sealability.
In one specific example of the present invention, the upper clear water pipe via 331 has a diameter of 4-8 millimeters.
According to the pre-filter element 10 of the composite filter element provided by the embodiment of the invention, the diameter of the upper pure water pipe through hole 331 is 4-8 mm, so that the pure water pipe with the outer diameter of 4-8 mm can be adapted, compared with the pre-filter element in the related art, the space occupied by the pure water pipe 200 can be reduced, the fillable volume of the pre-filter material 100 can be increased, the dirt receiving area of the pre-filter material 100 can be increased, and the service life of the pre-filter element 10 can be prolonged.
Advantageously, the upper clear water tube via 331 has a diameter of 5-7 mm. This allows the upper pure water pipe through-hole 331 to be fitted with a pure water pipe having an outer diameter of 5-7 mm. Thereby, the outer diameter size of the pure water pipe 200 can be further conveniently controlled, and the space occupied by the pure water pipe 200 can be further conveniently reduced, so that the service life of the pre-filter element 10 of the composite filter element is prolonged.
Specifically, as shown in fig. 5, the adapter 330 is sleeved with a second sealing ring 350. This can facilitate improved sealing between the adapter 330 and other structures of the composite filter element 1. Specifically, the adapter 330 may be matched with the waterway adapter cover of the composite filter element 1, and the second sealing ring 350 may improve the sealing property therebetween.
More specifically, as shown in fig. 5, the outer circumferential surface of the upper cover 310 is sleeved with a third sealing ring 360. Thereby facilitating the improvement of the sealing between the upper cover 310 and other structures of the composite filter element 1. Specifically, the upper cover 310 may be matched with the main filter element switching cover of the composite filter element 1, and the third sealing ring 360 may improve the tightness between the two.
Advantageously, as shown in fig. 11 to 13, the lower end cap 400 includes a lower cap body 410, a lower positioning member 420, a lower pure water pipe via hole 411 is provided in the lower cap body 410, a lower positioning groove 412 is provided on an inner circumferential surface of the lower pure water pipe via hole 411, the lower positioning member 420 is installed in the lower positioning groove 412, and a lower end of the pure water pipe 200 is fitted in the lower pure water pipe via hole 411. The lower sealing ring 430 is fitted in the lower positioning groove 412 and axially clamped between the lower positioning member 420 and the lower positioning groove 412, and the lower sealing ring 430 is sleeved outside the pure water pipe 200. Specifically, during installation, the lower sealing ring 430 may be first installed into the lower positioning groove 412, and then the lower positioning member 420 and the lower cover 410 are installed together, so that the lower positioning member 420 and the lower positioning groove 412 of the lower cover 410 clamp the lower sealing ring 430, and positioning of the lower sealing ring 430 is achieved. Therefore, the lower end cover 400 can be arranged into a plurality of split pieces, and compared with the technical scheme that the positioning groove is directly formed on the inner peripheral surface of the lower end cover 400, the lower sealing ring 430 can be conveniently installed.
More advantageously, as shown in fig. 11-13, lower detent 412 communicates with the upper end surface of lower end cap 400, and lower seal ring 430 is sandwiched between the inner bottom surface of lower detent 412 and the lower end surface of lower detent 420. In this way, the lower sealing ring 430 can be installed into the lower positioning groove 412 through the upper end surface of the lower cover 410 during installation, thereby further facilitating the installation of the lower sealing ring 430.
Specifically, as shown in fig. 11 to 13, an axial positioning groove 413 is provided on an inner circumferential surface of the lower positioning groove 412, an axial positioning buckle 421 is provided on an outer circumferential surface of the lower positioning member 420, and the axial positioning buckle 421 is engaged in the axial positioning groove 413. This allows for axial positioning of the lower retainer 420 and lower cap 410 using the axial positioning groove 413 and the axial positioning catch 421.
More specifically, as shown in fig. 11 to 13, the inner circumferential surface of the lower positioning groove 412 is provided with a circumferential positioning groove 414, and the outer circumferential surface of the lower positioning member 420 is provided with a circumferential positioning boss 422, the circumferential positioning boss 422 being fitted into the circumferential positioning groove 414. This enables circumferential positioning of the lower positioning member 420 and the lower cover 410 using the circumferential positioning groove 414 and the circumferential positioning boss 422.
Thereby, the lower cover 410 and the lower positioning member 420 can be axially and circumferentially positioned, and the installation of the two is facilitated.
Further, as shown in fig. 11 to 13, the circumferential positioning groove 414 communicates with the upper end surface of the lower cover 410, and the circumferential positioning boss 422 protrudes from the upper end surface of the lower positioning member 420. Thereby facilitating the installation of the lower fixture 420.
Specifically, the axial positioning tabs 421 and the circumferential positioning bosses 422 may be two.
The lower seal ring 430 is plural and axially aligned. Specifically, the number of the lower seal rings 430 may be two. This can further improve the sealability.
More specifically, the outer circumferential surface of the lower cover 410 is sleeved with a fourth sealing ring 440. Thereby facilitating the improvement of the sealability between the lower cover 410 and other structures of the composite filter element 1. Specifically, the lower cover 410 may be matched with the inner cylinder of the composite filter element 1, and the fourth seal ring 440 may improve the sealing property therebetween.
In one specific example of the present invention, the downcomer via 411 has a diameter of 4-8 millimeters.
According to the pre-filter element 10 of the composite filter element provided by the embodiment of the invention, the diameter of the lower pure water pipe through hole 411 is 4-8 mm, so that the pure water pipe with the outer diameter of 4-8 mm can be adapted, compared with the pre-filter element in the related art, the space occupied by the pure water pipe 200 can be reduced, the fillable volume of the pre-filter material 100 can be increased, the dirt receiving area of the pre-filter material 100 can be increased, and the service life of the pre-filter element 10 can be prolonged.
Advantageously, the downcomer via 411 has a diameter of 5-7 mm. Thereby, the outer diameter size of the pure water pipe 200 can be further conveniently controlled, and the space occupied by the pure water pipe 200 can be further conveniently reduced, so that the service life of the pre-filter element 10 of the composite filter element is prolonged.
Of course, the plain water pipe 200 may also be sealed in other ways.
For example, a seal is welded between the adapter 330 and the pure water pipe 200 and between the lower end cap 400 and the pure water pipe 200. This also makes it possible to achieve sealing between the adapter 330 and the pure water pipe 200 and between the lower end cap 400 and the pure water pipe 200 without providing a sealing ring and a positioning structure.
For another example, the adapter 330 is an interference fit with the plain water pipe 200 and the lower end cap 400 is an interference fit with the plain water pipe 200. This also makes it possible to achieve sealing between the adapter 330 and the pure water pipe 200 and between the lower end cap 400 and the pure water pipe 200 without providing a sealing ring and a positioning structure.
It will be appreciated by those skilled in the art that the sealing modes of the "sealing ring", "welding" and "interference fit" may be selected according to actual needs, or may be arranged and combined or used simultaneously.
Fig. 2 and 3 illustrate a pre-cartridge 10 of a composite cartridge according to one specific example of the invention. As shown in fig. 2 and 3, the pre-filter 100 includes an inner filter 110 and an outer filter 120. Thus, two filter materials with different performances can be used to form the pre-filter material 100, so that different filtering functions and effects can be realized conveniently, and the filtering effect and flexibility of the pre-filter material 100 are improved.
Specifically, the inner layer filter material 110 is a wet-formed composite activated carbon filter material, and the outer layer filter material 120 is a folded PP filter material. Specifically, the wet-formed composite activated carbon filter material is a filter material manufactured by casting carbon fibers and carbon powder through a wet method. Therefore, compared with the PAC filter material in the related art, the pollution receiving area of the pre-filter material 100 can be further conveniently increased, and the service life of the pre-filter material 100 is further prolonged.
The composite filter element 1 according to the embodiment of the present invention is described below. The composite filter cartridge 1 according to the embodiment of the present invention includes the pre-cartridge 10 of the composite filter cartridge according to the above-described embodiment of the present invention.
The composite filter element 1 according to the embodiment of the present invention has the advantage of long life and the like by using the pre-filter element 10 of the composite filter element according to the above-described embodiment of the present invention.
Specifically, as shown in fig. 14 to 17, the composite filter element 1 further includes a waterway adapter cap 20, a main filter adapter cap 30, an inner tube 40, a post-filter 50, a main filter 60, a center tube 70, and an outer tube 80.
The main filter switching cover 30 is arranged outside the upper end cover 300, the waterway switching cover 20 is arranged above the main filter switching cover 30, the inner cylinder 40 is sleeved outside the front filter material 100, the rear filter material 50 is arranged below the inner cylinder 40, the central tube 70 is sleeved outside the inner cylinder 40, the main filter material 60 is sleeved outside the central tube 70 and is connected with the main filter switching cover 30, and the outer cylinder 80 is sleeved outside the main filter material 60 and is connected with the waterway switching cover 20.
The waterway switching cover 20 is provided with a handle 21, a decorative cover 22 and a switching head 23.
The lower end of the post filter 50 is provided with a post filter end cap 51.
The main filter material is RO membrane. The rear filter material is a carbon rod.
The inner barrel 40 and the center tube 70 have a 1-2 mm gap therebetween.
The rear filter material 50 is adhered to the bottom of the inner cylinder 40 and the rear filter material 50 is adhered to the rear filter element end cover 51 through glue
The multiple adapters 23 include raw water connectors, front connectors, main filter connectors, pure water connectors and waste water connectors.
Specifically, as shown in fig. 16, raw water enters between the prefilter 100 and the inner tube 40 through the raw water joint, enters between the prefilter 100 and the pure water tube 200 after being filtered by the prefilter 100, is discharged through the prefilter, is pressurized by the water pump, returns to the composite filter element 1 through the main filter joint, flows into between the main filter 60 and the outer tube 80, flows in from the bottom of the main filter 60, flows out from the wastewater joint at the upper end of the main filter 60, and pure water enters the gap between the central tube 70 and the inner tube 40 through the hole in the central tube 70 and then flows to the post filter 50. After being filtered by the post-filter material 50, the pure water flows out of the pure water pipe 200 in the middle of the pre-filter element 10, and finally is discharged through the pure water connector.
Other constructions and operations of the composite filter element 1 according to embodiments of the 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 (9)
1. A pre-filter element of a composite filter element, comprising:
leading a filter material;
the pure water pipe is arranged in the front filter material, and is an extruded flat pipe fitting with the outer peripheral surface;
the upper end cover is arranged at the upper end of the front filter material and comprises an upper cover body, an adapter and an upper positioning piece, an upper mounting hole is formed in the upper cover body, the upper positioning piece is arranged in the upper mounting hole, an upper pure water pipe through hole is formed in the adapter, an upper positioning groove is formed in the inner peripheral surface of the upper pure water pipe through hole, the upper positioning piece is matched in the upper positioning groove, and the upper end of the pure water pipe is matched in the upper pure water pipe through hole;
the upper sealing ring is matched in the upper positioning groove and axially clamped between the upper positioning piece and the upper positioning groove, the upper sealing ring is sleeved outside the pure water pipe, and the upper positioning groove is communicated with the lower end face of the adapter;
the lower end cover is arranged at the lower end of the front filter material.
2. The pre-filter element of claim 1, wherein the inner peripheral surface of the upper positioning groove is further provided with a mounting groove communicated with the lower end surface of the adapter, the outer peripheral surface of the upper positioning piece is provided with a positioning ring table, and the positioning ring table is stopped against the inner top surface of the mounting groove.
3. The pre-filter cartridge of claim 2, wherein the inner peripheral surface of the mounting groove is provided with a rotary clamping groove and a communication groove, the communication groove is communicated with the rotary clamping groove and the lower end surface of the adapter, the upper positioning piece is provided with a first rotary buckle, and the first rotary buckle is suitable for penetrating through the communication groove and is further matched in the rotary clamping groove through relative rotation of the upper positioning piece and the adapter.
4. The composite filter cartridge of claim 1, wherein the upper retainer is provided with a second rotary catch, the upper cover is provided with a rotary locating rib, the rotary locating rib is provided with a notch, and the second rotary catch is adapted to pass through the notch and further stop on the rotary locating rib by relative rotation of the upper retainer and the upper cover.
5. The composite cartridge of claim 1, wherein the upper seal ring is a plurality of axially aligned.
6. The pre-filter cartridge of composite filter cartridge of claim 1, the pre-filter material comprising an inner filter material and an outer filter material.
7. The composite filter cartridge of claim 6, wherein the inner filter material is a wet-formed composite activated carbon filter material and the outer filter material is a pleated PP filter material.
8. The composite filter element according to claim 1, wherein the adapter is sleeved with a second sealing ring, and the outer peripheral surface of the upper cover is sleeved with a third sealing ring.
9. A composite filter cartridge comprising a pre-filter cartridge of a composite filter cartridge according to any one of claims 1-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110621320.9A CN114159880B (en) | 2021-06-03 | 2021-06-03 | Front filter element of composite filter element and composite filter element with front filter element |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110621320.9A CN114159880B (en) | 2021-06-03 | 2021-06-03 | Front filter element of composite filter element and composite filter element with front filter element |
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| CN114159880A CN114159880A (en) | 2022-03-11 |
| CN114159880B true CN114159880B (en) | 2023-07-21 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3072349B1 (en) * | 1999-07-13 | 2000-07-31 | リックス株式会社 | Bearing protection structure for rotary joint |
| CN108310840A (en) * | 2017-01-16 | 2018-07-24 | 佛山市顺德区美的饮水机制造有限公司 | Element kit and water purifier with it |
| CN109319960A (en) * | 2017-08-01 | 2019-02-12 | 佛山市顺德区美的饮水机制造有限公司 | Element kit and water purifier |
| CN111115881A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element assembly |
| CN111115880A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and water treatment device with same |
| CN111115757A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | RO filter element group spare and have its composite filter, water treatment facilities |
| CN213118526U (en) * | 2020-09-23 | 2021-05-04 | 惠州市创舰实业有限公司 | Lamp holder coordination installation fixed establishment of bar fluorescent tube |
| CN112624367A (en) * | 2020-12-08 | 2021-04-09 | 佛山市麦克罗美的滤芯设备制造有限公司 | Front-rear detachable integrated filter element structure |
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