CN216755663U - Filter equipment and water purifier - Google Patents

Abstract

The utility model relates to the technical field of water purification, and discloses a filtering device and a water purifier. The water purifier includes filter equipment, filter equipment includes the filter flask, filter core and branch water jacket, the filter flask includes integrated into one piece's bottle somatic part and end cover portion, be provided with the raw water entry on the end cover portion, water purification export and dense water export, the filter core sets up in the filter flask, the filter core includes filtering layer and water purification pipe, the first end of water purification pipe extends to outside the first end of filtering layer from the inside of filtering layer, it includes the end plate to divide the water jacket, end plate one side is provided with inner skleeve and outer sleeve, the filtering layer is pegged graft in the outer sleeve, the water purification pipe is pegged graft in the inner skleeve, be provided with first export and second export on the end plate, the clearance that raw water entry intercommunication filter flask and filter core body formed, first export intercommunication inner skleeve and water purification export, the dense water export of second export intercommunication, space between inner skleeve and the outer sleeve. The filtering device and the water purifier have simple structure and good water purifying effect.

Description

Filter equipment and water purifier

Technical Field

The utility model relates to the technical field of water purification, in particular to a filtering device and a water purifier.

Background

With the continuous improvement of the quality of life, the requirement of people on the cleanliness of drinking water is also improved, so that the water purifier is widely applied. The water purifier includes filter equipment, and filter equipment includes filter flask and the filter core of setting in the filter flask usually, and the raw water forms water purification and dense water through the filtration of filter core after getting into the filter flask, and the water purification and the dense water that the filter core produced need be shunted with the help of the water diversion cover in order to discharge from the different exports on the filter flask respectively. In the filtering device in the prior art, the filtering bottle needs to be sealed, and the water distribution sleeve needs to be matched with the filtering bottle so as to effectively separate raw water, purified water and concentrated water, so that the structure of the whole filtering device is complex.

Therefore, a filtering device and a water purifier are needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to provide a filtering apparatus, which has a simple structure and a good water diversion effect for each component water.

Another objective of the present invention is to provide a filter, which has a simple structure and a good water purification effect by providing the above-mentioned filtering device.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a filtration device comprising:

the filter flask comprises a flask body part and an end cover part which are integrally formed, wherein the end cover part is provided with a raw water inlet, a purified water outlet and a concentrated water outlet;

a filter element disposed within the filter flask, the filter element including a filter layer and a clean water pipe, a first end of the clean water pipe extending from an interior of the filter layer beyond the first end of the filter layer; and

the water distribution sleeve comprises an end plate, an inner sleeve and an outer sleeve are arranged on the first side of the end plate, the inner sleeve is positioned in the outer sleeve, the filter layer is in sealed insertion connection with the outer sleeve, the first end of the water purification pipe is in sealed insertion connection with the inner sleeve, and a first outlet and a second outlet are formed in the end plate;

the raw water inlet is communicated with the filter flask and a gap formed by the filter element body, the first outlet is communicated with the inner sleeve and the water purification outlet, and the second outlet is communicated with the concentrated water outlet and a space between the inner sleeve and the outer sleeve.

Preferably, a first tubular column and a second tubular column are constructed on the end cover part, the clean water outlet is communicated with the first tubular column, and the concentrated water outlet is communicated with the second tubular column;

a third string and a fourth string are configured on a second side of the end plate, the first outlet is in communication with the third string, and the second outlet is in communication with the fourth string;

the first pipe column is connected with the third pipe column in a sealing mode, and the second pipe column is connected with the fourth pipe column in a sealing mode.

Preferably, the raw water inlet, the purified water outlet and the concentrated water outlet are distributed in a triangular shape.

Preferably, the third string and the fourth string are eccentrically arranged relative to the inner sleeve;

the third tubular string comprises a first extension extending through the end plate and being in sealing connection with a circumferential outer sidewall of the inner sleeve, the first outlet being formed on the circumferential inner sidewall of the inner sleeve and communicating with the first extension;

the fourth column includes a second extension extending through the end plate and sealingly connected to a circumferential inner sidewall of the inner sleeve, and the second outlet is formed on the circumferential outer sidewall of the inner sleeve and communicates with the second extension.

Preferably, the first end of the clear water pipe abuts the first extension and/or the second extension.

Preferably, the raw water inlet, the purified water outlet and the concentrated water outlet are linearly distributed.

Preferably, the first string, the third string and the inner sleeve are coaxially arranged, and the third string extends to the inner side of the inner sleeve and is jointed with the first end of the purified water pipe;

the second outlet is disposed between the inner sleeve and the outer sleeve.

Preferably, the third pipe column is inserted into the first pipe column in a sealing manner, and the end face of the first pipe column is abutted against the end plate; and/or

The fourth pipe column is inserted in the second pipe column in a sealing mode, and the end face of the second pipe column is abutted to the end plate.

Preferably, the filter bottle further comprises a base, and the base is sealed at one end of the bottle body part far away from the end cover part.

Preferably, the inner side of the base is provided with a mounting sleeve, the second end of the water purifying pipe extends from the inside of the filter layer to the outside of the second end of the filter layer, and the second end of the water purifying pipe is inserted into the mounting sleeve.

Preferably, the depth of the outer sleeve is greater than the depth of the inner sleeve.

Preferably, a reinforcing rib is connected between the outer sleeve and the inner sleeve.

A water purifier comprises the filter device.

The utility model has the beneficial effects that:

according to the filtering device, the filter element is arranged in the filter bottle, the water purifying pipe of the filter element is limited on the inner sleeve of the water distributing sleeve, and the filter layer is limited on the outer sleeve of the water distributing sleeve, so that one end of the filter layer, which is used for discharging the concentrated water, can be separated from a channel, into which the raw water enters, of the filter layer by the outer sleeve of the water distributing sleeve, and the raw water and the concentrated water are effectively separated; the inner sleeve can separate the water purifying pipe of the filter element from one end of the filter layer for discharging the concentrated water, so that the concentrated water and the purified water are effectively separated, and the inner sleeve is simple in structure and good in separation effect; the end cover part and the bottle body part of the filter bottle are arranged into an integrally formed structure, so that a sealing part and a connecting part between the bottle body part and the end cover part can be omitted, and the structure and the assembly difficulty of the filter device are further simplified. The filtering device disclosed by the utility model is simple in structure and good in water distribution effect on water with various components.

The filter provided by the utility model is simple in structure and good in water purification effect by arranging the filter device.

Drawings

FIG. 1 is a schematic structural diagram of a filtering apparatus according to an embodiment of the present invention;

FIG. 2 is a first schematic view of a hidden portion of a filter device according to a first embodiment of the present invention;

FIG. 3 is a second schematic view of a hidden portion of a filter device according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a water diversion cover provided in the first embodiment of the present invention;

fig. 5 is a schematic structural diagram of the water diversion cover provided in the first embodiment of the present invention at another viewing angle;

FIG. 6 is a schematic structural view of a filter flask with a base removed according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a filter device according to a second embodiment of the present invention;

FIG. 8 is a first schematic view of a hidden portion of a filter device according to a second embodiment of the present invention;

FIG. 9 is a second schematic view of a hidden portion of a filter device according to a second embodiment of the present invention;

fig. 10 is a schematic structural view of the water dividing jacket according to the second embodiment of the present invention.

In the figure:

1-a filter flask; 11-a body portion; 111-a guide projection; 12-an end cap portion; 121-a first tubular string; 122-a second tubular string; 123-a fifth tubular string; 124-raw water inlet; 125-purified water outlet; 126-concentrated water outlet; 13-a base; 131-mounting the sleeve;

2-a filter element; 21-a filtering layer; 22-a water purifying pipe;

3-water distribution sleeve; 31-an end plate; 311-a third tubular string; 3111-a first extension; 312-a fourth tubular string; 3121-a second extension; 313 — a first outlet; 314-a second outlet; 32-inner sleeve; 33-an outer sleeve; 34-a limiting rib; 35-reinforcing ribs; 36-a guide rib; 37-a notch;

41-a first seal; 42-a second seal;

5-clearance;

6-water diversion sealing element.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

The embodiment provides a filter device and a water purifier, wherein the water purifier comprises the filter device. In particular, the water purifier may include one or more filtering devices connected in series. As shown in fig. 1-3, the filtering device comprises a filter flask 1, a filter element 2 and a water distribution sleeve 3, wherein the filter element 2 and the water distribution sleeve 3 are both arranged in the filter flask 1, and the filter flask 1, the filter element 2 and the water distribution sleeve 3 are all of a revolving body structure. The filter flask 1 includes a flask body 11 and an end cap 12, and the flask body 11 and the end cap 12 are integrally formed. The filter element 2 and the water distribution sleeve 3 can be installed into the filter flask 1 from the other end of the flask body 11. The bottle body part 11 and the end cover part 12 are arranged into an integrally formed structure, so that a sealing structure and a connecting structure between the bottle body part 11 and the end cover part 12 can be omitted, and the filtering device is simple in integral structure and convenient to assemble. The filter flask 1 further comprises a base 13, and the base 13 is sealed at the other end of the flask body 11, so as to ensure that the whole filter flask 1 can be in a closed state.

Further, as shown in fig. 1, the end cap portion 12 is provided with a raw water inlet 124, a purified water outlet 125 and a concentrated water outlet 126, wherein the raw water inlet 124 is used for introducing tap water or water to be treated from upstream, the purified water outlet 125 is used for discharging purified water generated by filtering of the filter element 2, and the concentrated water outlet 126 is used for discharging concentrated water generated by filtering of the filter element 2. As shown in fig. 2 to 4, the filter element 2 includes a filter layer 21 and a clean water pipe 22, the clean water pipe 22 penetrates the filter layer 21 in the axial direction of the filter layer 21, a first end of the clean water pipe 22 extends from the inside of the filter layer 21 to the outside of the first end of the filter layer 21, and a second end of the clean water pipe 22 extends from the inside of the filter layer 21 to the outside of the second end of the filter layer 21. The water distribution sleeve 3 is arranged at one end of the filter bottle 1 close to the end cover part 12, the water distribution sleeve 3 comprises an end plate 31, an inner sleeve 32 and an outer sleeve 33 are arranged on a first side (namely, one side far away from the end cover part 12) of the end plate 31, the inner sleeve 32 is arranged inside the outer sleeve 33, the filter layer 21 is hermetically inserted in the outer sleeve 33, the first end of the purified water pipe 22 is hermetically inserted in the inner sleeve 32, a first outlet 313 and a second outlet 314 are arranged on the end plate 31, the raw water inlet 124 is communicated with a gap 5 formed by the filter bottle 1 and the filter element 2 body, the first outlet 313 is communicated with the inner sleeve 32 and the purified water outlet 125, and the second outlet 314 is communicated with a concentrated water outlet 126 and a space between the inner sleeve 32 and the outer sleeve 33.

In the filter device of the present embodiment, the filter element 2 is disposed in the filter flask 1, the clear water pipe 22 of the filter element 2 is limited to the inner sleeve 32 of the water distribution sleeve 3, and the filter layer 21 is limited to the outer sleeve 33 of the water distribution sleeve 3. The outer sleeve 33 of the water diversion sleeve 3 can separate one end of the filtering layer 21 for discharging the concentrated water (i.e. the first end of the filtering layer 21) from a channel for raw water to enter, thereby realizing effective separation of the raw water and the concentrated water; inner sleeve 32 can be used for discharging the one end of dense water with filter element 2's clean water pipe 22 and filtering layer 21 and separate to realize the effective separation of dense water and clean water, simple structure just separates effectually, in addition sets up end cover portion 12 and bottle portion 11 of filter flask 1 into integrated into one piece's structure, makes filter equipment overall structure simple and to each water diversion effectual that divides.

When the filter element 2 device is used, the flow process of the water flow in the filter device is as follows:

as shown in fig. 2 and 3, raw water enters the gap 5 between the filter flask 1 and the filter element 2 from the raw water inlet 124, and then the raw water enters the filter layer 21 from the second end of the filter layer 21 to be filtered, wherein the filtered purified water flows into the purified water pipe 22, and then passes through the first outlet 313 on the end plate 31 of the water distribution sleeve 3, and then is discharged out of the filter device from the purified water outlet 125 on the filter flask 1, and the concentrated water generated by the filter element 2 passes through the second outlet 314 on the end plate 31 and then is discharged from the concentrated water outlet 126 on the filter flask 1, thereby realizing the filtering process.

Alternatively, in the present embodiment, the filter layer 21 is made of a reverse osmosis membrane, and in other embodiments, the specific material and kind of the filter layer 21 are not specifically limited herein. When the filter comprises a plurality of filter devices, the filter elements 2 in each filter device can be the same or different, and the arrangement is selected according to actual needs.

Preferably, as shown in fig. 2, a water dividing sealing member 6 is provided between the purified water pipe 22 and the inner sleeve 32, and the water dividing sealing member 6 can effectively prevent the concentrated water generated by the filtering from entering the first outlet 313 for discharging the purified water from the gap between the inner sleeve 32 and the first end of the purified water pipe 22, thereby improving the separation effect of the concentrated water and the purified water to improve the filtering effect of the filtering device. In this embodiment, the sealing member 6 that divides can be the rubber circle, and filter equipment includes a plurality of sealing members 6 that divide, and a plurality of sealing members 6 that divide set gradually along the axial of water purification pipe 22 to further improve the effect of separating dense water and water purification.

Preferably, as shown in fig. 2, the depth of the outer sleeve 33 is greater than that of the inner sleeve 32, so that the inner sleeve 32 has a better separation effect on the raw water and the concentrated water. The depth of the outer sleeve 33 and the inner sleeve 32 may be properly set according to the length of the first end of the clean water pipe 22, and the like, and is not limited herein.

Further, as shown in fig. 4, a reinforcing rib 35 is connected between the outer sleeve 33 and the inner sleeve 32. Thereby making the structure of the scoring water jacket 3 more firm. Specifically, the reinforcing rib 35 is plural, and the plural reinforcing ribs 35 are provided at intervals between the outer sleeve 33 and the inner sleeve 32, thereby alleviating the blocking of the reinforcing rib 35 against the discharge of the concentrated water. In this embodiment, the plurality of reinforcing ribs 35 are uniformly arranged, and in other embodiments, the specific arrangement manner of the reinforcing ribs 35 is not limited.

Preferably, as shown in fig. 2, a mounting sleeve 131 is provided on the inner side of the base 13, and the second end of the clear water pipe 22 is inserted into the mounting sleeve 131, so as to mount the filter element 2 in the filter flask 1. Further, the cover 3 that divides water is for 1 rigidity of filter flask, the terminal surface of the first end of water purification pipe 22 and the tip butt of the cover 3 that divides water, and the second end of water purification pipe 22 and the bottom butt of installing sleeve 131 to it is spacing to have realized the axial of filter core 2, guarantees that the axial position of filter core 2 is stable. The specific fixing method of the water distribution sleeve 3 in the filter flask 1 may be to fix the water distribution sleeve 3 and the filter element 2 in contact with the end cover portion 12 and the base 13 of the filter flask 1, or to fix the water distribution sleeve 3 in the filter flask 1 directly by a fastener or the like, and is not limited specifically herein.

Further, as shown in fig. 2 and 5, a circumferentially extending limiting rib 34 is further formed on an outer side wall of the outer sleeve 33 of the water diversion sleeve 3, the limiting rib 34 abuts against an inner wall of the bottle portion 11, a notch 37 is formed in the limiting rib 34, and the notch 37 communicates with the raw water inlet 124 and the gap 5 between the bottle portion 11 and the filter element 2. Spacing muscle 34 can be injectd the radial position of split jacket 3, and then realizes the injectment to the radial position of filter core 2, further guarantees the stable in position of filter core 2, and then guarantees the effective separation to water purification and dense water.

Preferably, as shown in fig. 5 and 6, an axially extending guide rib 36 is further formed on an outer side wall of the outer sleeve 33, a guide protrusion 111 matching with the guide rib 36 is formed on an inner side wall of the bottle body portion 11, and the guide rib 36 and the guide protrusion 111 are axially slidably fitted together. On one hand, the water dividing sleeve 3 and the filter bottle 1 can be positioned by matching the guide protrusions 111 with the guide ribs 36, so that the water dividing sleeve 3 and the filter bottle 1 can be conveniently and quickly mounted; on the other hand, the guiding ribs 36 can also guide the raw water, so that the raw water can more smoothly reach the second end of the filtering layer 21. Specifically, in the present embodiment, two parallel guide ribs 36 are configured on the outer side wall of the outer sleeve 33, the guide protrusion 111 is two rib structures arranged in parallel, and the guide protrusion 111 is inserted between the two guide ribs 36, and in other embodiments, the two guide ribs 36 may be inserted between the two rib structures, which is not limited herein.

In order to realize the communication between the first outlet 313 and the clean water outlet 125 and the communication between the second outlet 314 and the concentrated water outlet 126, as shown in fig. 2 and 3, the end cover portion 12 is configured with a first tubular column 121 and a second tubular column 122, the clean water outlet 125 is communicated with the first tubular column 121, the concentrated water outlet 126 is communicated with the second tubular column 122, the second side of the end plate 31 is configured with a third tubular column 311 and a fourth tubular column 312, the first outlet 313 is communicated with the third tubular column 311, the second outlet 314 is communicated with the fourth tubular column 312, the first tubular column 121 and the third tubular column 311 are hermetically connected, so as to realize the communication between the first outlet 313 and the clean water outlet 125, and the second tubular column 122 and the fourth tubular column 312 are hermetically connected, so as to realize the communication between the second outlet 314 and the concentrated water outlet 126. And the arrangement of the first pipe column 121 and the second pipe column 122 is convenient for realizing the communication between the clean water outlet 125 and the concentrated water outlet 126 with external pipelines respectively.

Preferably, as shown in fig. 2, the third tubular column 311 is inserted into the first tubular column 121, the end face of the first tubular column 121 abuts against the end plate 31, the fourth tubular column 312 is inserted into the second tubular column 122, and the second tubular column 122 abuts against the end plate 31. On one hand, the filter element 2 is inserted into the water distribution sleeve 3, the end face of the filter element 2 is abutted with the water distribution sleeve 3, the axial direction of the filter element 2 is abutted with the base 13 of the filter bottle 1, and the axial direction of the water distribution sleeve 3 is abutted with the end cover part 12, so that the axial positioning of the water distribution sleeve 3 and the whole filter element 2 relative to the filter bottle 1 is realized, other connecting structures are not needed, and the structure of the filter device is simple.

Further, as shown in fig. 2, the filter device further includes a first sealing member 41 and a second sealing member 42, wherein the first sealing member 41 is interposed between the first tubular column 121 and the third tubular column 311, so as to further improve the connection sealing property between the first outlet 313 and the purified water outlet 125. Likewise, a second seal 42 is interposed between the second tubing string 122 and the fourth tubing string 312. Thereby further improving the connection sealability of the second outlet 314 and the concentrate outlet 126. Alternatively, the first seal 41 and the second seal 42 may each be a rubber ring. And a plurality of first sealing members 41 can be axially arranged between the first tubular column 121 and the third tubular column 311, and a plurality of second sealing members 42 can be axially arranged between the second tubular column 122 and the fourth tubular column 312, so that the sealing reliability is ensured.

In this embodiment, as shown in fig. 3, the end cap 12 further includes a fifth tubular column 123, the raw water inlet 124 is communicated with the fifth tubular column 123 to communicate with the inside of the filter flask 1, and the raw water inlet 124 is communicated with an external raw water pipeline by the fifth tubular column 123.

As shown in fig. 1, in this embodiment, the raw water inlet 124, the purified water outlet 125 and the concentrated water outlet 126 are distributed in a triangular shape, so that the three openings on the end cap portion 12 can be arranged more compactly, and the end cap portion 12 and the whole filter bottle 1 can be made more compact in size to meet the use requirement of a small-sized filter.

In order to satisfy the requirement of structural compactness, the raw water inlet 124, the clean water outlet 125 and the concentrated water outlet 126 are all in eccentric positions relative to the axis of the filter element 2, which is equivalent to the eccentric positions of the first string 121 and the second string 122 relative to the axis of the filter element 2, and correspondingly, the third string 311 and the fourth string 312 are also in eccentric positions relative to the axis of the filter element 2, in this case, in order to achieve the communication between the first outlet 313 and the inside of the inner sleeve 32 and the communication between the second outlet 314 and the space between the outer sleeve 33 of the inner sleeve 32, as shown in fig. 2 and 4, the third string 311 includes a first extension 3111 extending through the end plate 31 and being in sealed connection with the circumferential outer side wall of the inner sleeve 32, the first outlet 313 is formed on the circumferential inner side wall of the inner sleeve 32 and being in communication with the first extension 3111, and further achieving the communication between the first outlet 313 and the first end of the clean water outlet 22 and the clean water outlet 125, so as to lead out the purified water. The fourth pipe string 312 includes a second extension portion 3121 extending through the end plate 31 and connected with the circumferential inner sidewall of the inner sleeve 32 in a sealing manner, and the second outlet 314 is formed on the circumferential outer sidewall of the inner sleeve 32 and communicated with the second extension portion 3121, thereby achieving communication between the second outlet 314 and the concentrated water outlet 126 and the end of the filter layer 21 discharging the concentrated water, respectively, so as to facilitate the discharge of the concentrated water. The whole structure is simple and compact, and the miniaturization is convenient to realize.

Preferably, as shown in fig. 2, the first extension 3111 and the second extension 3121 extend into the inner sleeve 32 by the same depth, and the first end of the water purifying pipe 22 abuts the first extension 3111 and the second extension 3121. Thereby can carry on spacingly to the axial of filter core 2 to confirm filter core 2 and install when installing filter core 2 in to dividing water jacket 3 and put in place. In other embodiments, when the first extension portion 3111 and the second extension portion 3121 extend into the inner sleeve 32 to different depths, the first end of the water purifying pipe 22 may abut only one of the first extension portion 3111 and the second extension portion 3121 which extends to a longer depth.

Example two

The embodiment provides a filter device and a water purifier, the water purifier includes at least one filter device, and when the water purifier includes a plurality of filter devices, a plurality of filter devices can be connected in series. The filtering apparatus of this embodiment has a similar overall structure and the same principle as the filtering apparatus of the first embodiment, and the same points as the first embodiment are not repeated herein, but the main differences are that the distribution manners of the raw water inlet 124, the purified water outlet 125 and the concentrated water outlet 126 on the end cap portion 12, and correspondingly, the distribution manners of the first column 121 and the second column 122, and the positional relationships between the third column 311 and the fourth column 312 and the inner sleeve 32 and the outer sleeve 33, respectively, are also different, as follows:

as shown in fig. 7 to 10, the raw water inlet 124, the purified water outlet 125 and the concentrated water outlet 126 are linearly arranged, so that the purified water outlet 125 and the second outlet 314 are respectively disposed at the centers of the axes of the filter elements 2, thereby facilitating the discharge of the purified water and simplifying the overall structure of the filter device.

Specifically, as shown in fig. 8 and 10, the first tubular leg 121, the third tubular leg 311, and the inner sleeve 32 are coaxially disposed such that the first outlet 313 is opposite to the center of the filter cartridge 2. Preferably, the third string 311 extends to the inner sleeve 32 and passes through the clean water pipe 22, so that the clean water can be discharged out of the filter device through the third string 311 and the first string 121. The second outlet 314 is communicated with the fourth tubular column 312 and is arranged between the inner sleeve 32 and the outer sleeve 33, and the second outlet 314 is arranged opposite to the first end of the filtering layer 21, so that the concentrated water is discharged out of the filtering device from the second outlet 314 through the fourth tubular column 312 and the second tubular column 122, the effective separation of the concentrated water and the purified water is ensured, and the filtering effect of the filtering device is further ensured.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the utility model and are not to be construed as limitations of the embodiments of the present invention, but may be modified in various embodiments and applications by those skilled in the art according to the spirit of the present invention, and the content of the present description should not be construed as a limitation of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (13)

1. A filter device, comprising:

the filter bottle (1) comprises a bottle body part (11) and an end cover part (12) which are integrally formed, wherein the end cover part (12) is provided with a raw water inlet (124), a purified water outlet (125) and a concentrated water outlet (126);

a filter element (2) arranged in the filter bottle (1), wherein the filter element (2) comprises a filter layer (21) and a purified water pipe (22), and a first end of the purified water pipe (22) extends from the interior of the filter layer (21) to the outside of the first end of the filter layer (21); and

the water distribution sleeve (3) comprises an end plate (31), an inner sleeve (32) and an outer sleeve (33) are arranged on the first side of the end plate (31), the inner sleeve (32) is located inside the outer sleeve (33), the filter layer (21) is inserted into the outer sleeve (33) in a sealing mode, the first end of the water purifying pipe (22) is inserted into the inner sleeve (32) in a sealing mode, and a first outlet (313) and a second outlet (314) are formed in the end plate (31);

the raw water inlet (124) is communicated with the filter flask (1) and a gap (5) formed by the filter element (2) body, the first outlet (313) is communicated with the inner sleeve (32) and the pure water outlet (125), and the second outlet (314) is communicated with the concentrated water outlet (126), the inner sleeve (32) and a space between the outer sleeves (33).

2. The filtering device according to claim 1, characterized in that said end cap (12) is provided with a first (121) and a second (122) column, said clean water outlet (125) being in communication with said first column (121) and said concentrated water outlet (126) being in communication with said second column (122);

a third string (311) and a fourth string (312) are configured on a second side of the end plate (31), the first outlet (313) is in communication with the third string (311), and the second outlet (314) is in communication with the fourth string (312);

the first tubular string (121) and the third tubular string (311) are sealingly connected, and the second tubular string (122) and the fourth tubular string (312) are sealingly connected.

3. The filtration apparatus as claimed in claim 2, wherein the raw water inlet (124), the purified water outlet (125) and the concentrated water outlet (126) are triangularly distributed.

4. A filtering device according to claim 3, characterized in that said third (311), said fourth (312) tubular column are arranged eccentrically with respect to said inner sleeve (32);

the third string (311) includes a first extension portion (3111) extending through the end plate (31) and being in sealing connection with a circumferential outer side wall of the inner sleeve (32), the first outlet (313) being formed on the circumferential inner side wall of the inner sleeve (32) and communicating with the first extension portion (3111);

the fourth string (312) includes a second extension (3121) extending through the end plate (31) and being sealingly connected with a circumferential inner side wall of the inner sleeve (32), the second outlet (314) being formed on the circumferential outer side wall of the inner sleeve (32) and communicating with the second extension (3121).

5. The filter device according to claim 4, wherein the first end of the water purifying pipe (22) abuts the first extension portion (3111) and/or the second extension portion (3121).

6. The filter device according to claim 2, wherein the raw water inlet (124), the purified water outlet (125) and the concentrated water outlet (126) are linearly arranged.

7. The filtration device as claimed in claim 6, wherein the first string (121), the third string (311) and the inner sleeve (32) are coaxially arranged, and the third string (311) extends inside the inner sleeve (32) and engages with the first end of the clean water pipe (22);

the second outlet (314) is disposed between the inner sleeve (32) and the outer sleeve (33).

8. The filtering device according to claim 2, characterized in that said third column (311) is sealingly inserted in said first column (121) with an end face of said first column (121) abutting against said end plate (31); and/or

The fourth pipe column (312) is hermetically inserted in the second pipe column (122), and the end face of the second pipe column (122) is abutted against the end plate (31).

9. A filter device as claimed in any one of claims 1 to 8, wherein the filter flask (1) further comprises a base (13), the base (13) being closed at an end of the body portion (11) remote from the end cap portion (12).

10. The filter device according to claim 9, characterized in that the inside of the base (13) is provided with a mounting sleeve (131), the second end of the clear water pipe (22) extends from the inside of the filter layer (21) to the outside of the second end of the filter layer (21), and the second end of the clear water pipe (22) is plugged into the mounting sleeve (131).

11. A filter device as claimed in any one of claims 1-8, wherein the depth of the outer sleeve (33) is greater than the depth of the inner sleeve (32).

12. A filter device as claimed in any one of claims 1-8, characterized in that a reinforcement (35) is connected between the outer sleeve (33) and the inner sleeve (32).

13. A water purifier characterized by comprising the filter device according to any one of claims 1 to 12.

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