CN213707922U - Composite filter element and water purifying device with same - Google Patents

Abstract

The utility model belongs to the technical field of water purification filter core equipment, a composite filter core and purifier who has it are disclosed, including casing, leading filter assembly, reverse osmosis filter assembly and aqueduct, be equipped with first mouth of a river, second mouth of a river, third mouth of a river, fourth mouth of a river and fifth mouth of a river on the casing, leading filter assembly and the mutually independent divided setting of reverse osmosis filter assembly are in inside the casing, leading filter assembly sets up the periphery at reverse osmosis filter assembly and shells inner wall, the aqueduct runs through inside and the intercommunication of reverse osmosis filter assembly fifth mouth of a river and reverse osmosis filter assembly lower extreme water route. The composite filter element provided by the invention integrates various filter materials into one filter element, so that the household drinking water can be filtered by one filter element, the volume of the water purifying device is greatly reduced, the cost of the filter element is reduced, the structure is simple, and great convenience is brought to the replacement and use of a user.

Description

Composite filter element and water purifying device with same

Technical Field

The utility model belongs to the technical field of water purification filter core equipment, especially, relate to a composite filter element and purifier who has it.

Background

At present, the existing filter elements in the market are roughly divided into two types, one type is that only a single filter element is arranged in a single filter material, when in use, a plurality of filter elements which are arranged in different filter materials are arranged in parallel, and external complex water paths are connected together, so that the occupied size is large, the assembly is complicated, and the cost is high; the composite filter element is a composite filter element, only two or three kinds of filter materials are compounded in most cases, the standard of drinking water is realized, a plurality of filter elements are combined for use, even if all the filter materials required are compounded to one filter element rarely, the structure is complex, the occupied proportion among various filter materials is not well adjusted, and the waste of partial filter materials is caused.

Through the above analysis, the problems and defects of the prior art are as follows:

(1) the existing single filter element occupies a large volume, is complex to assemble and has high cost.

(2) The integration level of the existing composite filter element is not high enough.

(3) The structure is comparatively complicated, and the occupation proportion among various filter media is not well adjusted, causes the waste of some filter media.

Disclosure of Invention

In order to solve the problems existing in the prior art, the utility model provides a composite filter element and purifier who has it not only integrate a filter core with the general multiple filter media of water purifier, reduce the filter core volume, simple structure moreover, it is with low costs.

The utility model aims at realizing the composite filter element, which comprises a shell, a preposed filtering component, a reverse osmosis filtering component and a water guide pipe, wherein the shell is provided with a first water gap, a second water gap, a third water gap, a fourth water gap and a fifth water gap;

the front filtering component and the reverse osmosis filtering component are arranged in the shell in a mutually independent and separated mode, the front filtering component is arranged on the periphery of the reverse osmosis filtering component and the inner wall of the shell, the front filtering component is communicated with a first water gap and a second water gap, and the reverse osmosis component is communicated with a third water gap, a fourth water gap and a fifth water gap;

the water guide pipe penetrates through the inside of the reverse osmosis filtering assembly and is communicated with the fifth water opening and a water path at the lower end of the reverse osmosis filtering assembly.

Further, leading filtering component coaxial cover is established on reverse osmosis filtering component, leading filtering component and casing inner wall are formed with first clearance, leading filtering component and reverse osmosis filtering component outer wall form the second clearance, first clearance and second clearance are independent each other and sealed alone, the second clearance is independent each other not intercommunicated with reverse osmosis component inside.

Further, the shell is provided with a closed end and a connecting end which are axially arranged, a cylinder cover is fixedly arranged on the connecting end, a plurality of annular convex walls which extend downwards along the axial direction and are used for connecting the filtering component are arranged on the inner end face of the cylinder cover, and a first convex wall, a second convex wall, a third convex wall and a fourth convex wall are sequentially arranged along the radial direction from outside to inside;

the upper end of the water guide pipe is hermetically inserted in the fourth convex wall.

Further, the first water gap is communicated with an annular gap between the inner wall of the cylinder cover and the first convex wall, the second water gap is communicated with an annular gap between the first convex wall and the second convex wall, the third water gap is communicated with an annular gap between the second convex wall and the third convex wall, the fourth water gap is communicated with an annular gap between the third convex wall and the fourth convex wall, and the fifth water gap is communicated with an inner hole of the fourth convex wall.

Further, the reverse osmosis filter component comprises a central tube, a reverse osmosis membrane, a sealing layer, a first lower end cover and a first upper end cover, the central tube is sleeved outside the water guide pipe, a seal is formed in a gap between the inner wall of the bottom end of the central tube and the outer wall of the bottom end of the water guide pipe, a through hole with the upper end and the lower end communicated is formed in the central tube,

the central outer wall is provided with a limber hole, the reverse osmosis membrane is wound outside the central tube, the sealing layer is wound on the outermost layer of the reverse osmosis membrane, the lower end surface of the reverse osmosis membrane is covered by the lower end cover, gaps are reserved on the lower end surfaces of the reverse osmosis membrane and the central tube and are communicated with the lower end of the water guide tube, a seal is formed between an upward vertical flanging of the lower end cover and the gap of the sealing layer, the annular inserting end on the upper portion of the upper end cover penetrates through the front filtering component to be inserted into the second convex wall, and a seal is formed between the downward vertical flanging of the upper end cover and.

Furthermore, the preposed filter assembly is of an annular cylindrical structure and comprises an annular upper end cover II, an annular lower end cover II and a preposed filter material, the annular upper end cover II and the annular lower end cover II are respectively covered at two ends of the preposed filter material, the upper end cover II is in sealed insertion connection with the first convex wall, and the inner wall of the annular lower end cover II is sealed with the outer wall of the reverse osmosis filter assembly.

Furthermore, the reverse osmosis filtering component also comprises an adapter cylinder, a water gap at the lower part of the adapter cylinder is hermetically connected with the upper end of the central pipe, and a splicing end at the upper part of the adapter cylinder is hermetically spliced in the third convex wall;

a third gap is formed between the inner wall of the upper end cover and the outer wall of the adapter cylinder, a fourth gap is formed between the inner wall of the adapter cylinder and the outer wall of the water guide pipe, a fifth gap is formed in the inner hole of the water guide pipe, and the third gap, the fourth gap and the fifth gap are independent and sealed independently.

Furthermore, the composite filter element also comprises a rear-mounted filter unit which is sleeved in a fourth gap between the outer wall of the water guide pipe and the inner wall of the adapter cylinder;

the rear filter unit comprises a rear filter material, a third annular upper end cover and a third annular lower end cover, the third upper end cover and the third lower end cover are respectively covered at two ends of the rear filter material, a seal is formed between the outer wall of the water guide pipe and the inner wall of the third annular upper end cover, and a seal is formed between the outer wall of the third annular lower end and the inner wall of the transfer cylinder.

Another object of the utility model is to provide a water purification device, this water purification device installs composite filter element.

By combining all the technical schemes, the invention has the advantages and positive effects that:

the utility model provides a novel water purification filter core of combination formula, the filter media that will purify water commonly used are whole to an integrated filter core, realize that a filter core just can accomplish the filtration of drinking water, have not only reduced purifier's volume greatly, and simple structure assembles the convenience moreover, and the proportion that occupies between the various filter media is adjusted according to the demand easily, and the user is when using or renew cartridge, and is more convenient, and use cost has also reduced a lot.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 is a cross-sectional view of a composite filter element according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a reverse osmosis filtration module according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a pre-filter assembly according to an embodiment of the present invention.

Fig. 4 is a cross-sectional view of a post-filter unit according to an embodiment of the present invention.

In the figure: 100 of a shell; 200 a pre-filter assembly; 300 a reverse osmosis filtration module; 400 water pipes; 500 post-filter unit; 1, a cylinder cover; 2, a central tube; 3, a reverse osmosis membrane; 4 sealing layer; 5, covering the upper end with a first cover; 6, a first lower end cover; 7, a switching cylinder; 8, an upper end cover II; 9, a second lower end cover; 10 pre-filter material; 11, an upper end cover III; 12, a third lower end cover; 13 post-filter material; 101 a first convex wall; 102 a second convex wall; 103 a third convex wall; 104 a fourth convex wall; a K1 first gap; k2 second gap; k3 third gap; k4 fourth gap; k5 fifth gap; an L1 first nozzle; an L2 second nozzle; an L3 third nozzle; l4 fourth nozzle; l5 fifth nozzle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

To solve the problems in the prior art, the present invention provides a composite filter element and a water purifying device with the same, and the present invention is described in detail with reference to the attached drawings.

Referring to fig. 1 to 4, the composite filter element provided by the present embodiment includes a housing 100, a pre-filter assembly 200, a reverse osmosis filter assembly 300, and a water conduit 400, wherein the housing is provided with a first water gap L1, a second water gap L2, a third water gap L3, a fourth water gap L4, and a fifth water gap L5, the pre-filter assembly 200 and the reverse osmosis filter assembly 300 are independently and separately disposed inside the housing 100, the pre-filter assembly 200 is disposed at a periphery of an inner wall of the reverse osmosis filter assembly 300 and the housing 100, the pre-filter assembly 200 is communicated with a first water gap L1 and a second water gap L2, and the reverse osmosis filter assembly 300 is communicated with a third water gap L3, a fourth water gap L4, and a fifth water gap L5.

Through setting up that aqueduct 400 runs through reverse osmosis filter assembly 300 inside and communicate fifth mouth of a river L5 and reverse osmosis filter assembly 300 lower extreme water route makes rivers directly communicate the mouth of a river at casing 100 top by reverse osmosis filter assembly 300 lower extreme water route through a thinner aqueduct 100, not only can simplify the waterway structure, still can reduce the occupation of water guide component to the inside volume of filter core greatly, arrange the design for leading filter assembly 200 and reverse osmosis filter assembly 300 and provide more spaces.

In the optional technical scheme of this embodiment, the front filter assembly 200 is coaxially sleeved on the reverse osmosis filter assembly 300, the inner space of the filter element can be more fully used, the volume of the filter element is reduced, a first gap K1 is formed between the front filter assembly 200 and the inner wall of the casing 100, a second gap K2 is formed between the front filter assembly 200 and the outer wall of the reverse osmosis filter assembly 300, the first gap K1 and the second gap K2 are independent and separately sealed, water flow can enter the other gap from one gap only through the filtration of the front filter assembly 200, and the second gap K2 is independent and not communicated with the reverse osmosis filter assembly 300.

In the optional technical solution of this embodiment, the casing 100 has a closed end and a connection end that are axially arranged, the connection end is fixedly provided with the cylinder cover 1, the inner end surface of the cylinder cover 1 is provided with a plurality of annular convex walls that extend downward along the axial direction and are used for connecting the filter assembly, the annular convex walls are a first convex wall 101, a second convex wall 101, a third convex wall 103 and a fourth convex wall 104 in sequence from outside to inside along the radial direction, and the upper end of the water guide pipe 400 is hermetically inserted into the fourth convex wall 104.

In an optional technical solution of this embodiment, the first nozzle L1 communicates with an annular gap between the inner wall of the cylinder cover 1 and the first convex wall 101, the second nozzle L2 communicates with an annular gap between the first convex wall 101 and the second convex wall 102, the third nozzle L3 communicates with an annular gap between the second convex wall 102 and the third convex wall 103, the fourth nozzle L4 communicates with an annular gap between the third convex wall 103 and the fourth convex wall 104, and the fifth nozzle L5 communicates with an inner hole of the fourth convex wall 104.

In an optional technical scheme of this embodiment, the reverse osmosis filter assembly 300 includes a central tube 2, a reverse osmosis membrane 3, a sealing layer 4, a first lower end cover 6 and a first upper end cover 5, the central tube 2 is sleeved outside the water conduit 400, a gap between the inner wall of the bottom end of the central tube 2 and the outer wall of the bottom end of the water conduit 400 is sealed, so that water flow inside the water conduit 400 does not mix with water flow in the gap between the central tube 2 and the water conduit 400, a through hole with upper and lower ends communicated with each other is formed inside the central tube 2, a water through hole is formed on the outer wall of the central tube 2, the reverse osmosis membrane 3 is wound outside the central tube 2, the sealing layer 4 is wound on the outermost layer of the reverse osmosis membrane 3, the first lower end cover 6 is covered on the lower end face of the reverse osmosis membrane 3, a gap is formed, the annular insertion end at the upper part of the first upper end cover 5 penetrates through the front filter assembly 200 to be inserted into the second convex wall 102, and a gap between the downward vertical flanging of the first upper end cover 5 and the sealing layer 4 is sealed, so that the separation of the reverse osmosis filter assembly 300 from the outside is realized through the combined sealing design of the first upper end cover 5, the first lower end cover 6 and the sealing layer 4.

In the optional technical scheme of this embodiment, the pre-filter assembly 200 is an annular cylindrical structure, and includes the second annular upper end cover 8, the second annular lower end cover 9 and the pre-filter material 10, the second annular upper end cover 8 and the second annular lower end cover 9 are respectively covered at two ends of the pre-filter material, and the second annular upper end cover 8 is inserted into the first convex wall 101 in a sealing manner, and the inner wall of the second annular lower end cover 9 is sealed with the outer wall of the reverse osmosis filter assembly 300.

In the optional technical solution of this embodiment, the reverse osmosis filtration assembly 300 further includes an adapter 7, a water gap at the lower part of the adapter 7 is hermetically connected with the upper end of the central tube 2, and an insertion end at the upper part of the adapter 7 is hermetically inserted into the third convex wall 103.

Therefore, a third gap K3 is formed between the inner wall of the first upper end cover 1 and the outer wall of the adapter cylinder 7, a fourth gap K4 is formed between the inner wall of the adapter cylinder 7 and the outer wall of the water guide pipe 400, a fifth gap K5 is formed in the inner hole of the water guide pipe 400, and the third gap K3, the fourth gap K4 and the fifth gap K5 are independent and independent from each other and are sealed.

In the optional technical solution of this embodiment, the composite filter element further includes a rear filter unit 500, and the rear filter unit 500 is sleeved in a fourth compartment K4 between the outer wall of the water conduit 400 and the inner wall of the adapter cylinder 7;

optionally, the rear filter unit 500 includes a rear filter material 13, a third annular upper end cover 11 and a third annular lower end cover 12, the third upper end cover 11 and the third lower end cover 12 are respectively covered at two ends of the rear filter material 13, a seal is formed between the outer wall of the water conduit 400 and the inner wall of the third annular upper end cover 11, and a seal is formed between the outer wall of the third annular lower end cover 12 and the inner wall of the adapter cylinder 7.

The utility model discloses specific filtration principle as follows: raw water flows into a first gap K1 through a first water gap L1, flows into a second gap K2 after being filtered by the preposed filter material 10, finally flows out of the filter element through a second water gap L2, is pressurized at the outside, then flows into the lower end face of a reverse osmosis membrane 3 through a water guide pipe 400 through a fifth water gap L5, flows into the reverse osmosis membrane 3 through the lower end face of the reverse osmosis membrane 3, is filtered by the reverse osmosis membrane 3, concentrated water flows into a third gap K3 through the upper end face of the reverse osmosis membrane 3, is finally discharged through a third water gap L3, obtained pure water flows into a space between the central pipe 2 and the water guide pipe 400 through holes in the central pipe 2, then flows into a fourth gap K4 communicated with the central pipe, is filtered by the postposition filter material 13, and finally obtained pure water flows out through a fourth water gap L4.

It should be noted that the raw water in the water making process can also flow into the second gap K2 from the second water gap L2, and flow into the first gap K1 after being filtered by the pre-filter 10, and then flow out through the first water gap L1; the water pressurized from the outside can also flow into the third gap K3 through the third water gap L3, flow into the reverse osmosis membrane 3 through the upper end surface of the reverse osmosis membrane 3 for filtration, the obtained wastewater flows into the water guide pipe 400 through the lower end surface of the reverse osmosis membrane 3, finally flows out from the fifth water outlet L5, and the obtained pure water flows out through the fourth water gap L4 without changing the flow path.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "upper", "lower", "leading", "trailing", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention.

Claims (9)

1. A composite filter element, comprising:

the water inlet device comprises a shell, wherein a first water gap, a second water gap, a third water gap, a fourth water gap and a fifth water gap are formed in the shell;

the device comprises a front-mounted filtering component and a reverse osmosis filtering component, wherein the front-mounted filtering component and the reverse osmosis filtering component are arranged in the shell in an independent and separated mode, the front-mounted filtering component is arranged on the periphery of the reverse osmosis filtering component and the inner wall of the shell, the front-mounted filtering component is communicated with a first water gap and a second water gap, and the reverse osmosis filtering component is communicated with a third water gap, a fourth water gap and a fifth water gap;

and the water guide pipe penetrates through the inside of the reverse osmosis filtering assembly and is communicated with the fifth water opening and a water path at the lower end of the reverse osmosis filtering assembly.

2. The composite filter element according to claim 1, wherein the pre-filter assembly is coaxially sleeved on the reverse osmosis filter assembly, a first gap is formed between the pre-filter assembly and the inner wall of the housing, a second gap is formed between the pre-filter assembly and the outer wall of the reverse osmosis filter assembly, the first gap and the second gap are independent and independently sealed, and the second gap and the inside of the reverse osmosis filter assembly are independent and not communicated with each other.

3. The composite filter element according to claim 1, wherein the housing has a closed end and a connecting end arranged axially, the connecting end is fixedly provided with a cylinder cover, the inner end surface of the cylinder cover is provided with a plurality of annular convex walls extending axially downwards for connecting the filter assembly, and the annular convex walls are a first convex wall, a second convex wall, a third convex wall and a fourth convex wall in sequence from outside to inside along the radial direction;

the upper end of the water guide pipe is hermetically inserted in the fourth convex wall.

4. A composite filter element according to claim 3 wherein said first nozzle communicates with the annular gap between the inner wall of the cap and the first boss wall, said second nozzle communicates with the annular gap between the first boss wall and the second boss wall, said third nozzle communicates with the annular gap between the second boss wall and the third boss wall, said fourth nozzle communicates with the annular gap between the third boss wall and the fourth boss wall, and said fifth nozzle communicates with the bore in the fourth boss wall.

5. A composite filter element according to claim 3 wherein said reverse osmosis filtration module comprises:

the central tube is sleeved outside the water guide pipe, a seal is formed between the inner wall of the bottom end of the central tube and the outer wall of the bottom end of the water guide pipe, a through hole with the upper end and the lower end communicated is formed inside the central tube, and a water through hole is formed in the outer wall of the central tube;

the reverse osmosis membrane is wound outside the central tube;

the sealing layer is wound on the outermost layer of the reverse osmosis membrane;

the lower end cover I is covered on the lower end face of a reverse osmosis membrane, gaps are reserved on the lower end faces of the reverse osmosis membrane and the central pipe and communicated with the lower end of the water guide pipe, and a seal is formed between an upward vertical flanging of the lower end cover and a gap of a sealing layer;

and the annular insertion end at the upper part of the first upper end cover penetrates through the front filter assembly and is inserted into the second convex wall, and a seal is formed between a downward vertical flanging of the upper end cover and a gap of the sealing layer.

6. The composite filter element according to claim 3, wherein the pre-filter element is an annular cylindrical structure and comprises a second annular upper end cover, a second annular lower end cover and the pre-filter element, the second annular upper end cover and the second annular lower end cover are respectively covered at two ends of the pre-filter element, the second annular upper end cover and the second annular lower end cover are hermetically inserted into the first convex wall, and a seal is formed between the inner wall of the second annular lower end cover and the outer wall of the reverse osmosis filter element.

7. The composite filter element according to claim 5, wherein the reverse osmosis filtration assembly further comprises an adapter, a water port at the lower part of the adapter is hermetically connected with the upper end of the central tube, and an insertion end at the upper part of the adapter is hermetically inserted into the third convex wall;

a third gap is formed between the inner wall of the upper end cover and the outer wall of the adapter cylinder, a fourth gap is formed between the inner wall of the adapter cylinder and the outer wall of the water guide pipe, a fifth gap is formed in the inner hole of the water guide pipe, and the third gap, the fourth gap and the fifth gap are independent and sealed independently.

8. The composite filter element of claim 7, further comprising:

the rear filtering unit is sleeved in a fourth gap between the outer wall of the water guide pipe and the inner wall of the adapter cylinder;

the rear filter unit comprises a rear filter material, a third annular upper end cover and a third annular lower end cover, the third upper end cover and the third lower end cover are respectively covered at two ends of the rear filter material, a seal is formed between the outer wall of the water guide pipe and the inner wall of the third annular upper end cover, and a seal is formed between the outer wall of the third annular lower end and the inner wall of the transfer cylinder.

9. A water purification device, characterized in that the water purification device is provided with a composite filter element according to any one of claims 1 to 8.

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