CN212141666U - Composite filter element and water purifier with same - Google Patents

Abstract

The utility model provides a composite filter element and have its purifier. Wherein, composite filter element includes first casing and sets up the inner tube subassembly in first casing, and the inner tube subassembly includes: an inner barrel structure having a mounting cavity; the first filtering structure is arranged in the mounting cavity and comprises a filtering part; the second filtering structure is arranged in the mounting cavity and comprises a filtering component, and at least part of the second filtering structure is positioned above the first filtering structure; the first filtering structure further comprises a first supporting piece, the second filtering structure further comprises a positioning part, the filtering part is connected with the positioning part, and the positioning part is connected with the first supporting piece, so that the first filtering structure supports the second filtering structure through the first supporting piece. The utility model discloses the overall structure intensity of filter core among the prior art is lower and influence life's problem has been solved effectively.

Description

Composite filter element and water purifier with same

Technical Field

The utility model relates to a water purification unit technical field particularly, relates to a composite filter element and have its purifier.

Background

At present, the purifier on the market adopts the filter core of filling single filter media usually, leads to the filter effect of purifier relatively poor, can not satisfy user's user demand. In the prior art, in order to realize the filtering effect of a plurality of filter materials, the plurality of filter materials are connected in series for filtering, and each filter material is fixed on a fixed seat.

However, the filter materials connected in series have large volumes, so that the overall structural strength of the filter element cannot be guaranteed, the phenomenon that the normal use of the filter element is influenced due to the damage of the filter element structure is easy to occur, and the service life of the filter element is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a composite filter element and have its purifier to solve the overall structure intensity of filter core among the prior art lower and influence life's problem.

In order to achieve the above object, according to an aspect of the present invention, there is provided a composite filter element, including a first housing and an inner tube assembly disposed in the first housing, the inner tube assembly includes: an inner barrel structure having a mounting cavity; the first filtering structure is arranged in the mounting cavity and comprises a first filtering part; the second filtering structure is arranged in the mounting cavity and comprises a second filtering part, and at least part of the second filtering structure is positioned above the first filtering structure; the first filtering structure further comprises a first supporting piece, the second filtering structure further comprises a positioning part, the second filtering portion is connected with the positioning part, and the positioning part is connected with the first supporting piece, so that the first filtering structure supports the second filtering structure through the first supporting piece.

Further, the positioning component comprises a second shell and a second supporting piece, the second filtering portion is arranged in the second shell, and the second supporting piece penetrates through the second filtering portion.

Further, the lateral wall of second casing has the lightening hole, and the inner tube subassembly still includes: the first water stop piece is used for plugging the lightening holes; and when the number of the lightening holes is multiple, the plurality of lightening holes are arranged at intervals along the circumferential direction of the second shell.

Further, the number of the first water stop pieces is one or more, and when the number of the first water stop pieces is one, the first water stop pieces are wound outside the second shell; when the lightening holes are multiple and the first water stop pieces are multiple, the multiple first water stop pieces and the lightening holes are arranged in a one-to-one correspondence mode.

Furthermore, the second support piece is a rod body, the rod body and the inner cylinder component are arranged in parallel in the height direction, the first support piece is provided with a first support surface arranged towards the second filtering structure, and the first support surface is abutted to the rod body and is arranged perpendicular to the rod body.

Furthermore, the second shell is provided with a contact end face arranged towards the first filtering structure, the contact end face and the inner barrel assembly are arranged in a mutually vertical mode in the height direction, the first supporting piece is provided with a second supporting face arranged towards the second filtering structure, and the contact end face and the second supporting face are abutted and arranged in parallel.

Further, the inner barrel structure includes: a first end cap; the second end cover is connected with one end of the first filtering structure far away from the second filtering structure; the composite filter element further comprises: the first end cover is connected with the second end cover through the second water stop piece; the first end cover, the second end cover and the second water stop piece surround to form an installation cavity.

Further, the first water stop piece and/or the second water stop piece are/is water-proof cloth.

Further, second support piece is the body of rod, and the first end and the first support piece of the body of rod are connected, and second filtration still includes: the third end cover is arranged at one end, far away from the first filtering structure, of the second shell and is provided with a first opening, a gap is formed between the second end of the rod body and the third end cover, and the gap is communicated with the first opening.

Further, first end cover has the second opening with installation cavity intercommunication, and composite filter element still includes: the mounting head is arranged on the third end cover and penetrates out of the inner cylinder structure through the second opening; the mounting head is provided with a first liquid passing channel communicated with the first opening, and a second liquid passing channel communicated with the mounting cavity is formed between the mounting head and the first end cover.

Furthermore, the first support part is provided with a through hole for the medium to pass through, and the through hole is arranged to avoid the second support part.

According to another aspect of the utility model, a water purifier is provided, which comprises a casing and a composite filter element arranged in the casing; wherein, composite filter core is above-mentioned composite filter core.

Use the technical scheme of the utility model, first filtration and second filtration all set up in inner tube structure, and first filtration and second filtration arrange along the direction of height of inner tube structure, and the at least part of second filtration is located the top of first filtration, and the medium that gets into in the inner tube structure gets into first filtration earlier, in getting into the second filtration after first filter house filters again, discharges outside the inner tube structure after the second filter house filters at last. Wherein, the second filter house of second filtration is connected with locating component, and then has promoted the structural strength of second filtration, and the locating component of second filtration is connected with first support piece of first filtration, and first filtration supports second filtration through first support piece, and second filtration presses to establish promptly on first filtration. This way. The above-mentioned connected mode of first filtration and second filtration has reduced the lateral wall atress of inner tube structure, avoids the inner tube structure to take place structural damage or warp, and then has solved the overall structure intensity of filter core among the prior art lower and influence life's problem, has promoted composite filter's overall structure intensity, has prolonged composite filter's life.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a cross-sectional view of an inner barrel assembly of an embodiment of a composite filter cartridge according to the present disclosure;

FIG. 2 shows an enlarged schematic view at A of the inner barrel assembly of the composite filter cartridge of FIG. 1;

FIG. 3 shows another angular cross-sectional view of an inner barrel assembly of the composite filter element of FIG. 1;

FIG. 4 shows a schematic perspective view of a second housing of the inner cartridge assembly of the composite filter cartridge of FIG. 1; and

fig. 5 is a perspective view of the composite filter element of fig. 1 with the inner barrel assembly removed.

Wherein the figures include the following reference numerals:

10. an inner barrel structure; 11. a mounting cavity; 12. a first end cap; 121. a second liquid passing channel; 13. a second end cap; 21. a first filter unit; 22. a first support member; 221. a first support surface; 222. a second support surface; 223. a via hole; 30. a positioning member; 31. a second housing; 311. lightening holes; 312. a contact end face; 32. a second filter unit; 33. a second support member; 34. a third end cap; 341. a gap; 40. a first water-stop member; 50. a second water-stop member; 60. a mounting head; 61. a first liquid passing channel.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.

In order to solve the problem that the overall structure intensity of filter core is lower and influence life among the prior art, the application provides a composite filter core and have its purifier.

As shown in fig. 1 to 5, the composite filter element includes a first housing and an inner cylinder assembly disposed in the first housing, and the inner cylinder assembly includes an inner cylinder structure 10, a first filter structure, and a second filter structure. The inner barrel structure 10 has a mounting cavity 11. A first filter structure is provided in the mounting chamber 11, the first filter structure including a first filter portion 21. A second filter structure is arranged in the mounting chamber 11, the second filter structure comprising a second filter portion 32, at least part of the second filter structure being located above the first filter structure. The first filter structure further includes a first support member 22, the second filter structure further includes a positioning member 30, the second filter portion 32 is connected to the positioning member 30, and the positioning member 30 is connected to the first support member 22, so that the first filter structure supports the second filter structure through the first support member 22.

Use the technical scheme of this embodiment, first filtration and second filtration all set up in inner tube structure 10, and first filtration and second filtration arrange along inner tube structure 10's direction of height, and the at least part of second filtration is located the top of first filtration, and the medium that gets into in inner tube structure 10 gets into first filtration earlier in, gets into the second filtration after first filter house 21 filters again, discharges outside inner tube structure 10 after second filter house 32 filters at last. Wherein, the second filter part 32 of the second filter structure is connected with the positioning component 30, and then the structural strength of the second filter structure is promoted, the positioning component 30 of the second filter structure is connected with the first supporting component 22 of the first filter structure, the first filter structure supports the second filter structure through the first supporting component 22, namely the second filter structure is pressed on the first filter structure. This way. The above-mentioned connected mode of first filtration and second filtration has reduced the lateral wall atress of inner tube structure 10, avoids inner tube structure 10 to take place structural damage or warp, and then has solved the overall structure intensity of filter core among the prior art lower and influence life's problem, has promoted composite filter's overall structure intensity, has prolonged composite filter's life.

In the present embodiment, the second filtering portion 32 is an ultrafiltration membrane. Note that the type of the second filter portion 32 is not limited to this. Optionally, the second filter portion 32 is a fiber filter element or an activated carbon filter element.

In this embodiment, locating part 30 butt is on first support piece 22, and first support piece 22 supports locating part 30, then realizes being connected through mutual butt between first filtration and the second filtration, and the staff of being convenient for carries out the dismouting to first filtration and second filtration, has reduced the dismouting degree of difficulty.

It should be noted that the connection manner of the positioning member 30 and the first support 22 is not limited to this. Alternatively, the positioning member 30 is threaded or snapped or attached by fasteners to the first support 22.

As shown in fig. 1 and 3, the positioning member 30 includes a second housing 31 and a second supporting member 33, the second filter portion 32 is disposed in the second housing 31, and the second supporting member 33 is disposed in the second filter portion 32. In this way, the second supporting member 33 and the second housing 31 are both abutted to the first supporting member 22, so as to support the positioning member 30 and the second filter part 32 by the first supporting member 22, and improve the structural strength of the second filter structure. Meanwhile, the positioning component 30 is simpler in structure, easy to process and realize, and the processing cost of the composite filter element is reduced.

Specifically, the first filtering portion 21 is an activated carbon filter element, and the first supporting member 22 is connected to the activated carbon filter element and located above the activated carbon filter element. The milipore filter is all welded with second casing 31 and second support piece 33 and is made to support the milipore filter through second support piece 33 and second casing 31, avoid the milipore filter to take place to warp and influence its filter effect.

As shown in fig. 1 to 4, the sidewall of the second housing 31 has a lightening hole 311, and the inner cylinder assembly further includes a first water stop 40. The first water stop member 40 is used for blocking the lightening holes 311. Thus, the above arrangement of the second housing 31 can reduce the overall weight of the second filter structure, and thus reduce the load of the first filter structure. Meanwhile, the arrangement of the first water stop piece 40 can prevent the medium from entering the second shell 31 through the lightening holes 311, so that the medium can only enter the second filtering structure through the first filtering structure, and the filtering effect of the composite filter element is improved.

Optionally, there are one or more lightening holes 311, and when there are a plurality of lightening holes 311, the plurality of lightening holes 311 are provided at intervals in the circumferential direction of the second shell 31. As shown in fig. 4, the lightening holes 311 are four, and the four lightening holes 311 are provided at intervals in the circumferential direction of the second shell 31 to further reduce the weight of the second shell 31.

Optionally, the first water stop members 40 are one or more, and when the first water stop member 40 is one, the first water stop member 40 is wound outside the second housing 31. When the lightening holes 311 are plural and the first water stop 40 is plural, the plural first water stop 40 and the plural lightening holes 311 are provided in one-to-one correspondence. In the present embodiment, there is one first water stop 40, and one first water stop 40 is wound outside the second housing 31 to close the four lightening holes 311. Specifically, the first water stopper 40 is bonded to the second housing 31 to block the four lightening holes 311.

In other embodiments not shown in the drawings, the number of the first water stop members is four, the four first water stop members are arranged in one-to-one correspondence with the four lightening holes, and each first water stop member is bonded with the corresponding lightening hole to block the lightening hole.

The number of the lightening holes 311 is not limited to this, and may be adjusted according to the lightening requirement. Optionally, the lightening holes 311 are two, or three, or five, or six.

The number of the first water blocking members 40 is not limited to this, and may be adjusted according to the number of the lightening holes 311. Optionally, the first water stop 40 is two, or three, or five, or six.

As shown in fig. 2, the second supporting member 33 is a rod, the rod and the inner cylinder assembly are parallel to each other in height direction, the first supporting member 22 has a first supporting surface 221 facing the second filtering structure, and the first supporting surface 221 is abutted against the rod and is perpendicular to the rod. Like this, the body of rod and first holding surface 221 butt to support second support piece 33 through first holding surface 221, and then increased the area of contact between second support piece 33 and the first support piece 22, increased first support piece 22's holding power, ensure that first support piece 22 can support the second filtration, promoted first support piece 22's support reliability.

As shown in fig. 2, the second housing 31 has a contact end surface 312 facing the first filter structure, the contact end surface 312 and the inner cylinder assembly are arranged perpendicular to each other in the height direction, the first support 22 has a second support surface 222 facing the second filter structure, and the contact end surface 312 and the second support surface 222 are abutted and arranged parallel to each other. In this way, the contact end surface 312 abuts against the second supporting surface 222 to support the second supporting member 33 through the first supporting surface 221, so that the contact area between the second supporting member 33 and the first supporting member 22 is increased, the supporting force of the first supporting member 22 is increased, the first supporting member 22 can support the second filtering structure, and the supporting reliability of the first supporting member 22 is improved.

As shown in fig. 1 and 3, the inner cylinder structure 10 includes a first end cap 12 and a second end cap 13. The second end cap 13 is attached to the end of the first filter structure remote from the second filter structure. The composite filter element further comprises a second water stop 50, the first end cap 12 being connected to the second end cap 13 by the second water stop 50. The first end cap 12, the second end cap 13 and the second water stop 50 surround to form the installation cavity 11. Thus, since the side wall of the inner cylinder structure 10 does not need to bear load, the above arrangement of the inner cylinder structure 10 can reduce the overall weight of the inner cylinder structure 10, and the lightweight design of the composite filter element is realized. Meanwhile, the arrangement of the second water stop piece 50 can prevent the medium from flowing out of the inner cylinder structure 10 to cause medium leakage, and the use reliability of the composite filter element is improved.

Optionally, the first and/or second water stops 40, 50 are water-proof cloth. In this embodiment, the first water stop piece 40 and the second water stop piece 50 are both made of water stop cloth, so that on one hand, the processing cost of the first water stop piece 40 and the second water stop piece 50 is reduced; on the other hand, the first and second water stop members 40 and 50 can be easily and simply processed.

As shown in fig. 1 and 3, the first end of the rod is connected to the first support 22, and the second filter structure further includes a third end cap 34. The third end cap 34 is disposed at one end of the second housing 31 far away from the first filtering structure and has a first opening, a gap 341 is disposed between the second end of the rod body and the third end cap 34, and the gap 341 is communicated with the first opening, so that the medium filtered by the ultrafiltration membrane is discharged out of the second filtering structure through the gap 341 and the first opening in sequence. Like this, the above-mentioned setting of the body of rod ensures that the medium after second filter house 32 filters can get into in the first opening through clearance 341 to ensure that the medium after accomplishing the filtration can flow outside the composite filter element, further promoted composite filter element's use reliability.

As shown in fig. 1, 3 and 5, the first end cap 12 has a second opening communicating with the mounting cavity 11, and the composite filter element further includes a mounting head 60. Wherein, the mounting head 60 is disposed on the third end cover 34 and passes out of the inner cylinder structure 10 through the second opening. The mounting head 60 has a first liquid passing passage 61 communicating with the first opening, and a second liquid passing passage 121 communicating with the mounting chamber 11 is formed between the mounting head 60 and the first end cap 12. Thus, one end of the mounting head 60 is connected to the third end cap 34 and the other end of the mounting head 60 is connected to the pipe to accomplish the filtered media delivery.

In particular, the medium in this application is a liquid. The medium enters the installation cavity 11 through the second liquid passing channel 121. Then, the medium enters the first filter portion 21, the first filter portion 21 performs primary filtering on the medium, the filtered medium enters the second filter portion 32, the second filter portion 32 performs secondary filtering on the medium, and the filtered medium enters the gap 341 first. Then, the medium in the gap 341 is discharged to the outside of the composite filter element through the first liquid passing passage 61, and the composite filter element filters impurities in the medium.

Note that the type of the medium is not limited to this. Optionally, the medium is a gas or a solid-liquid mixture.

As shown in fig. 2, the first support 22 has a via 223 for passing a medium, and the via 223 is disposed away from the second support 33. In this way, the medium filtered by the first filter unit 21 enters the second filter unit 32 through the through hole 223, and the second filter unit 32 filters the medium for the second time. The above-mentioned setting of second support piece 33 and via hole 223 can ensure that the medium can get into in the second filtration through via hole 223, and then has promoted composite filter's use reliability.

The application also provides a water purifier (not shown) comprising a casing and a composite filter element arranged in the casing. Wherein, composite filter core is above-mentioned composite filter core.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

first filtration and second filtration all set up in inner tube structure, and first filtration and second filtration arrange along the direction of height of inner tube structure, and the at least part of second filtration is located the top of first filtration, and the medium that gets into in the inner tube structure gets into first filtration earlier, gets into the second filtration after first filter house filters again in, discharges outside the inner tube structure after the second filter house filters at last. Wherein, the second filter house of second filtration is connected with locating component, and then has promoted the structural strength of second filtration, and the locating component of second filtration is connected with first support piece of first filtration, and first filtration supports second filtration through first support piece, and second filtration presses to establish promptly on first filtration. This way. The above-mentioned connected mode of first filtration and second filtration has reduced the lateral wall atress of inner tube structure, avoids the inner tube structure to take place structural damage or warp, and then has solved the overall structure intensity of filter core among the prior art lower and influence life's problem, has promoted composite filter's overall structure intensity, has prolonged composite filter's life.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. A composite filter element comprising a first housing and an inner cartridge assembly disposed within the first housing, the inner cartridge assembly comprising:

an inner cylinder structure (10) having a mounting cavity (11);

a first filtering structure arranged in the mounting cavity (11), the first filtering structure comprising a first filtering portion (21);

a second filter structure arranged in the mounting chamber (11), the second filter structure comprising a second filter portion (32), at least part of the second filter structure being located above the first filter structure;

the first filtering structure further comprises a first supporting piece (22), the second filtering structure further comprises a positioning component (30), the second filtering portion (32) is connected with the positioning component (30), and the positioning component (30) is connected with the first supporting piece (22) so that the first filtering structure supports the second filtering structure through the first supporting piece (22).

2. The composite filter element according to claim 1, characterized in that said positioning means (30) comprise a second shell (31) and a second support (33), said second filtering portion (32) being arranged inside said second shell (31), said second support (33) being pierced inside said second filtering portion (32).

3. The composite filter element of claim 2, wherein the sidewall of the second housing (31) has a lightening hole (311), the inner cartridge assembly further comprising:

a first water stop (40), wherein the first water stop (40) is used for blocking the lightening hole (311);

wherein, the number of the lightening holes (311) is one or more, and when the number of the lightening holes (311) is multiple, the plurality of the lightening holes (311) are arranged at intervals along the circumferential direction of the second shell (31).

4. The composite filter element according to claim 3, wherein the first water stops (40) are one or more, the first water stops (40) being wound outside the second shell (31) when the first water stops (40) are one; when the lightening holes (311) are multiple and the first water stop piece (40) is multiple, the first water stop pieces (40) and the lightening holes (311) are arranged in a one-to-one correspondence mode.

5. The composite filter element according to claim 2, wherein the second support element (33) is a rod, the rod and the inner barrel assembly are arranged in parallel in the height direction, the first support element (22) has a first support surface (221) arranged towards the second filter structure, and the first support surface (221) is abutted against the rod and arranged perpendicular to each other.

6. The composite filter element according to claim 5, wherein the second housing (31) has a contact end face (312) disposed toward the first filter structure, the contact end face (312) being disposed perpendicular to the height direction of the inner cartridge assembly, the first support member (22) having a second support face (222) disposed toward the second filter structure, the contact end face (312) abutting the second support face (222) and being disposed parallel to each other.

7. A composite filter element according to claim 3, wherein the inner barrel arrangement (10) comprises:

a first end cap (12);

a second end cap (13) connected to an end of the first filter structure remote from the second filter structure; the composite filter element further comprises:

a second water stop (50), the first end cap (12) being connected to the second end cap (13) by the second water stop (50); the first end cover (12), the second end cover (13) and the second water stop piece (50) surround to form the mounting cavity (11).

8. The composite filter element according to claim 7, wherein the first and/or second water-stop (40, 50) is a water-stop cloth.

9. The composite filter element according to claim 7, wherein the second support member (33) is a rod, a first end of which is connected to the first support member (22), the second filter structure further comprising:

and the third end cover (34) is arranged at one end, far away from the first filtering structure, of the second shell (31) and is provided with a first opening, a gap (341) is formed between the second end of the rod body and the third end cover (34), and the gap (341) is communicated with the first opening.

10. The composite filter element of claim 9, wherein the first end cap (12) has a second opening in communication with the mounting cavity (11), the composite filter element further comprising:

the mounting head (60) is arranged on the third end cover (34) and penetrates out of the inner cylinder structure (10) through the second opening; the mounting head (60) is provided with a first liquid passing channel (61) communicated with the first opening, and a second liquid passing channel (121) communicated with the mounting cavity (11) is formed between the mounting head (60) and the first end cover (12).

11. The composite filter element according to claim 2, wherein the first support (22) has a through-opening (223) for the passage of a medium, the through-opening (223) being arranged offset with respect to the second support (33).

12. A water purifier is characterized by comprising a machine shell and a composite filter element arranged in the machine shell; wherein the composite filter element is the composite filter element of any one of claims 1 to 11.

Images