CN218435070U - Sectional combined composite filter element with one end for water inlet and outlet and water purifying device - Google Patents

Abstract

The utility model belongs to the technical field of water purification unit, a segmentation combination formula composite filter core and purifier of one end business turn over water is disclosed, including 1 bottom filter core and more than 1 filter core concatenates, the bottleneck of subordinate series connection filter core is inserted in proper order and is formed an entirety at the bottle bottom of higher level series connection filter core, the bottom filter core is inserted at the bottle bottom of rather than adjacent series connection filter core, the segmentation combination formula composite filter core of one end business turn over water and the inlet outlet of external intercommunication all set up the bottleneck that is located the top and concatenates the filter core; the utility model provides a segmentation combination formula composite filter core of one end business turn over water both can realize wholly being a filter core composite multiple filter media, very big improvement again the flexibility that the filter core used, the user can freely arrange the filter core that concatenates of different filter media according to local quality of water and make up, it is nimble convenient to use to also need not wholly abandon the filter core during the renew cartridge, only need concatenate filter core or bottom filter core that the life-span expires, greatly reduced user's use cost.

Description

Sectional combined composite filter element with one end for water inlet and outlet and water purifying device

Technical Field

The utility model belongs to the technical field of water purification unit, especially, relate to a segmentation combination formula composite filter and purifier of one end business turn over water.

Background

Along with the gradual attention of people to drinking water safety, domestic water dispenser, water purifier have become the indispensable domestic appliance of family's drinking water gradually, and the water purification filter core is the most core part of water purifier, and is different according to the requirement to the drainage, according to the difference of each place quality of water, can be through setting up the filter core of different types, different quantity in the water purifier to satisfy the user to the demand of different drinking water.

At present, filter elements in the market are roughly divided into two types, one type is that only one filter material is arranged in one filter element, a plurality of filter elements are arranged in a water purifier side by side according to different requirements of users when in use, and then the filter elements are communicated by an external complex waterway, so that the assembly is complicated, the water purifier has larger volume and occupies large space; the utility model provides a be composite filter element, integrated multiple filter media in the section of straining of a filter core, although composite filter element can effectively reduce the quantity of filter core, thereby reduce the volume of water purifier, the defect is also very obvious, this kind of filter core is a non-detachable whole, because water quality difference in various places, need use the filter core of different filter media combinations, so current composite filter element uses the flexibility to receive very big restriction, the user can not be convenient adjust at any time according to the demand, and because composite filter element is a non-detachable whole, as long as there is a filter media life due, a whole filter core is just changed, it is extravagant to have caused very big filter media, thereby increase user use cost.

In summary, the prior art has the following technical problems and disadvantages:

(1) A plurality of filter elements of a single filter material are arranged side by side, so that the assembly is complicated, and the occupied internal volume of the water purifier is large;

(2) Although the number of filter elements can be effectively reduced in the conventional composite filter element, the use flexibility is poor, a user cannot conveniently adjust and adjust the filter element at any time according to water requirements, and the composite filter element is an undetachable whole body, so that the whole filter element is required to be replaced as long as the service life of one filter element expires, so that great filter material waste is caused, and the use cost of the user is increased.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a segmented combined composite filter element with one end for water inlet and outlet, which comprises 1 bottom filter element and more than 1 series-connected filter element, wherein the bottleneck of the lower series-connected filter element is sequentially inserted into the bottleneck of the upper series-connected filter element to form a whole, and the bottom filter element is inserted into the bottom of the bottle adjacent to the bottom of the filter element;

the segmented combined type composite filter element with water inlet and outlet at one end and the water inlet and outlet communicated with the outside are arranged at the bottle mouth of the filter element which is positioned at the top end and connected in series;

the inside of concatenating the filter core is equipped with the inflow flow path and the play water flow path that do not communicate each other, and adjacent two concatenate its inflow flow path mutually independent intercommunication between the filter core, goes out water flow path mutually independent intercommunication, it is equipped with the filter media subassembly on the play water flow path of filter core to concatenate, the bottom filter core is equipped with the inflow flow path and the play water flow path that lead to water each other, the inflow flow path and the play water flow path of bottom filter core link in series the inflow flow path and the play water flow path of filter core rather than adjacent respectively and communicate independently each other.

Preferably, the water port ends of the series-connected filter elements and the filter elements at the bottom end are both provided with a raw water inlet and a filtered water outlet, the water inlet flow path of the series-connected filter elements is respectively communicated with the raw water inlet of the series-connected filter elements and the raw water inlet of the adjacent series-connected filter elements, and the water outlet flow path of the series-connected filter elements is respectively communicated with the filtered water outlet of the series-connected filter elements and the filtered water outlet of the adjacent series-connected filter elements;

the raw water inlet of the bottom filter element is respectively communicated with the water inlet flow path of the bottom filter element and the water inlet flow path of the filter element which is adjacent to the bottom filter element in series connection, and the filtered water outlet of the bottom filter element is respectively communicated with the water outlet flow path of the bottom filter element and the water outlet flow path of the filter element which is adjacent to the bottom filter element in series connection.

Preferably, the filter element is a full capacity filter element, such as an activated carbon filter element, a granular carbon filter element, a composite carbon fiber filter element, a PP cotton filter element, or a UF filter element.

Preferably, the tandem filter element comprises a first outer barrel, a protruding bottle mouth is arranged at the upper end of the first outer barrel, a stepped hole is arranged at the lower end of the first outer barrel, a clamping boss is arranged on the outer wall of the protruding bottle mouth of the first outer barrel, and a clamping block is arranged in an outer hole of the stepped hole of the first outer barrel;

preferably, 2 blocks of symmetrical setting of joint piece to can be to keeping away from or being close to putting of filter core central axis to carrying out the flexible slip that stretches out and draws back.

Preferably, the inside of the first filter element outer cylinder connected in series is provided with a separation cylinder, the inside of the first outer cylinder is separated into two independent cavities, and the inside of the separation cylinder is provided with a filter material component.

Preferably, the upper end of the separating cylinder extends to the bottle mouth of the first outer cylinder to divide the bottle mouth into the raw water inlet and the filtered water outlet of the series-connected filter element, and the lower end of the separating cylinder extends to the stepped hole in the lower end of the first outer cylinder.

Preferably, the separation cylinder comprises a diversion tower, a cylinder body and a lower end cover, and the diversion tower and the lower end cover are respectively covered at two ends of the cylinder body.

Preferably, a cavity between the separation cylinder and the first outer cylinder forms a water inlet flow path of the serial filter element, and a water outlet flow path of the serial filter element is formed inside the separation cylinder.

Preferably, the bottom filter core is assembled by concatenating filter core and blanking cover including concatenating filter core and blanking cover and forming, the blanking cover is equipped with the outer wall and is equipped with the joint boss, the blanking cover clamps in the shoulder hole of urceolus one through the joint piece, sealed the setting between the outer wall of blanking cover and the inside downthehole wall of shoulder hole.

The filter material subassembly forms the inlet flow path of bottom filter core with the urceolus between one, the inside outlet flow path that forms the bottom filter core of filter material subassembly.

Preferably, the bottom filter element comprises a second outer cylinder, a filter material component and a diversion tower, wherein a convex bottle mouth is arranged at the upper end of the second outer cylinder, the lower end of the second outer cylinder is arranged in a closed mode, the filter material component is arranged inside the second outer cylinder, and the diversion tower is arranged inside the bottle mouth of the second outer cylinder and is used for dividing the bottle mouth into a raw water inlet and a filtered water outlet of the bottom filter element;

the upper end of the filter material component is hermetically connected with the lower end of the diversion tower.

Preferably, a water inlet flow path of the bottom filter element is formed between the filter material assembly and the second outer cylinder, a water outlet flow path of the bottom filter element is formed inside the filter material assembly, and water flow of the water inlet flow path of the bottom filter element can enter the water outlet flow path of the bottom filter element through filtering of the filter material.

Another object of the utility model is to provide a water purification device, water purification device installs one end business turn over segmentation combination formula composite filter core of water.

Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:

(1) The utility model provides a segmentation combination formula composite filter core of one end business turn over water, split into a plurality of filter cores of concatenating and bottom filter core with the filter core in the water purifier, a plurality of filter cores of concatenating and bottom filter core can meet and splice into an integral composite filter core head-to-head, can place different types of full flow filtration filter media subassembly in every filter core of concatenating and the bottom filter core, both can realize wholly being a filter core compound multiple filter media, reduce the use quantity of filter core and reach the purpose that reduces the water purifier volume, the flexibility that the filter core used has greatly been improved, by concatenating with concatenating filter core and bottom filter core and can carry out arbitrary quantity as required, the user can freely arrange the combination of concatenating the filter core of different filter media according to local quality of water, it is nimble convenient to use, and when changing the filter core, also need not wholly abandon the filter core, only need to change concatenating filter core or bottom that the life expires, greatly reduced user's use cost;

(2) The utility model provides a segmentation combination formula composite filter element of one end business turn over water all sets up the bottleneck that concatenates the filter core on being located the top with the inlet outlet of outside intercommunication, so sets up, makes this filter core simple structure and convenient more when butt joint with the inside water route of water purifier, has greatly improved the suitability of whole filter core and water purifier, and it is also more convenient when the user renews the filter core simultaneously.

(3) In preferred embodiment, the bottom filter core is including concatenating filter core and blanking cover, so set up, and all accessories of bottom filter core all can with concatenate the son filter core sharing of connecing, only need to concatenate filter core afterbody cartridge blanking cover and just can constitute the bottom filter core, have greatly improved the commonality between each filter core to the cost of manufacturing has been reduced.

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 structural section view of a sectional combined type composite filter element with one end for water inlet and outlet provided by the embodiment of the utility model;

fig. 2 is an exploded view of a sectional composite filter element structure with one end for water inlet and outlet provided by the embodiment of the present invention;

fig. 3 is a sectional view of a series connection of filter elements according to an embodiment of the present invention;

fig. 4 is a structural section view of the first filter element outer cylinder in series connection according to the embodiment of the present invention;

fig. 5 is a structural section view of a bottom end filter element according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a bottom end filter element according to a second embodiment of the present invention;

FIG. 7 is a schematic view of a full-flow filter assembly according to an embodiment of the present invention;

in the figure: 100. the filter elements are connected in series; 200. a bottom filter element; 1. a filter material assembly; 2. a first outer cylinder; 3. a separation cylinder; 4. a diversion tower; 5. a barrel; 6. a lower end cover; 7. a clamping block; 8. a drive block; 9. a compression cover; 10. a spring; 11. blocking the cover; 12. a second outer cylinder; 101. a stepped hole; 102. clamping the boss; 103. a key hole; 801. an inclined guide post; 701. oblique guide holes; l1, a water inlet flow path; l2, a water outlet flow path; k1, a raw water inlet; k2, filtering water to be discharged.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be 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.

As shown in fig. 1-2, the utility model provides a segmented combined composite filter element with one end for water inlet and outlet, which comprises 1 bottom filter element 200 and more than 1 series-connected filter elements 100, wherein the bottle mouth of the next series-connected filter element 100 is sequentially inserted into the bottle mouth of the previous series-connected filter element 100 to form a whole, and the bottom filter element 200 is inserted into the bottle bottom of the adjacent series-connected filter element 100; the segmented combined type composite filter element with water inlet and outlet at one end and water inlet and outlet communicated with the outside are arranged at the bottle mouth of the filter element 100 connected in series at the top end, a water inlet flow path L1 and a water outlet flow path L2 which are not communicated with each other are arranged inside the filter element 100 connected in series, the water inlet flow paths L1 between two adjacent filter elements 100 connected in series are mutually independently communicated, the water outlet flow paths L2 are mutually independently communicated, a filter material assembly 1 is arranged on the water outlet flow path L2 of the filter element 100 connected in series, the filter element 200 at the bottom end is provided with a water inlet flow path L1 and a water outlet flow path L2 communicated with each other, and the water inlet flow path L1 and the water outlet flow path L2 of the filter element 200 at the bottom end are respectively and mutually independently communicated with the water inlet flow path L1 and the water outlet flow path L2 of the adjacent filter element 100 connected in series.

As shown in fig. 3-4, the tandem sub-filter element includes a first outer cylinder 2, a separating cylinder 3 and a filter material assembly 1, a protruding bottle mouth is arranged at the upper end of the first outer cylinder 2, a stepped hole 101 is arranged at the lower end of the first outer cylinder 2, the first outer cylinder 2 of the tandem filter element 100 is internally provided with the separating cylinder 3, the first outer cylinder 2 is separated into two independent cavities, the filter material assembly 1 is arranged in the separating cylinder 3, a seal is formed between the outer wall of the upper end of the filter material assembly 1 and the inner wall of the separating cylinder 3, a water inlet flow path L1 of the tandem filter element 100 is formed by the cavity between the separating cylinder 3 and the first outer cylinder 2, and a water outlet flow path L2 of the tandem filter element 100 is formed by the cavity in the separating cylinder 3; the separation barrel 3 comprises a diversion tower 4, a barrel body 5 and a lower end cover 6, the diversion tower 4 and the lower end cover 6 are respectively covered at two ends of the barrel body 5 in a peripheral wall sealing manner, through holes are formed in the centers of the diversion tower 4 and the lower end cover 6 for water to pass through, the upper end of the diversion tower 4 of the separation barrel 3 extends to the mouth of the outer barrel I2 for separating the mouth of the separation barrel into a raw water inlet K1 and a filtered water outlet K2 which are connected with the filter element 100 in series, finally, the filtered water outlet K2 is formed at the upper end of the diversion tower 4, the raw water inlet K1 is formed between the diversion tower 4 and the mouth of the outer barrel I2, and the lower end of the lower end cover 6 of the separation barrel 3 extends into a stepped hole 101 at the lower end of the outer barrel I2; be equipped with joint boss 102 on the convex bottleneck outer wall of urceolus 2, joint piece 7 is installed to the outside hole of urceolus 2 shoulder hole 101, 2 symmetrical setting of joint piece 7 is 2, and can be to keeping away from or be close to putting of filter core central axis to carrying out the flexible slip of elasticity, drive block 8 and closing cap 9 are still installed to the outside hole of urceolus 2 shoulder hole 101, the outer wall of concatenating filter core 100 shoulder hole 101 is equipped with key hole 103, drive block 8 side is equipped with the button and the bottom surface is equipped with oblique guide pillar 801, drive block 8 is installed on the interior terminal surface of shoulder hole 101 outside hole and the button sees through key hole 103 and extends to sub-filter core outer wall, joint piece 7 lateral wall is equipped with the spring hole and openly is equipped with oblique guide hole 701, two joint piece 7 are in the inside of the installation closing cap 9 of horizontal direction symmetry, the spring that the spring hole was equipped with is compressed tightly on the inner wall of closing cap 9, the whole pressure equipment of closing cap 9 that is equipped with joint piece 7 is on drive block 8, and drive block 8 oblique guide pillar 801 inserts in the oblique guide hole 701 of slider that the horizontal direction was accomplished to the removal under the push away from the slider removal effect of the push away from the push cap 9 and urceolus 2 bottom fixed, the push-on the slider pressure effect of the slider.

The structure of the bottom filter element 200 has the following embodiments according to different application scenarios:

the first embodiment is as follows:

as shown in fig. 5, in order to save the manufacturing cost and enable the serial filter element 100 and the bottom filter element 200 to share the components, in a preferred embodiment, the bottom filter element 200 may be formed by assembling the serial filter element 100 and the plug cover 11, the outer wall of the plug cover 11 is provided with a clamping boss 102, the plug cover 11 is clamped in the stepped hole 101 of the outer barrel one 2 through the clamping boss 102, and the outer wall of the plug cover 11 and the inner wall of the inner hole of the stepped hole 101 are hermetically arranged to block the communication between the inside and the outside of the bottom filter element 200, while the through hole of the lower end cover 6 of the separation barrel 3 is not hermetically arranged, so that the water inlet flow path L1 outside the separation barrel 3 of the bottom filter element 200 is communicated with the water outlet flow path L2 inside the separation barrel 3; the bottom filter element 200 is arranged in such a way, the filter element 100 and the bottom filter element 200 which are connected in series can be shared, and the bottom filter element 200 only needs to be additionally provided with one plugging cover 11, so that the convenience of production is improved, and the production and manufacturing cost is saved.

The second embodiment:

as shown in fig. 6, in order to make the structure of the bottom filter element 200 simpler, the bottom filter element 200 may also be independently disposed, in an alternative embodiment, the bottom filter element 200 includes a second outer cylinder 12, a filter material assembly 1 and a diversion tower 4, an upper end of the second outer cylinder 12 is provided with a convex bottleneck, a lower end of the second outer cylinder 12 is hermetically disposed, the diversion tower 4 is disposed inside the bottleneck of the second outer cylinder 12 and is used for dividing the bottleneck into a raw water inlet K1 and a filtered water outlet K2 of the bottom filter element 200, finally, an upper end of the diversion tower 4 forms a filtered water outlet K2, a raw water inlet K1 is formed between the diversion tower 4 and the bottleneck of the second outer cylinder 12, a lower end of the diversion tower 4 is hermetically abutted to an upper end of the filter material assembly 1, a water inlet flow path L1 of the bottom filter element 200 is formed between the filter material assembly 1 and the second outer cylinder 12, a water outlet flow path L2 of the bottom filter element 200 is formed inside the filter material assembly 1, and water in the bottom filter material assembly 200 can enter the water outlet L2 of the bottom filter element 200, and then flows out through the filtered water outlet K2 of the diversion tower 4; the bottom filter element 200 is arranged in such a way, although the bottom filter element cannot be shared with the filter elements 100 connected in series, the structure is simple, many additional components are saved, such as the structure of the blocking cover 11, the separating cylinder 3 and the clamping block 7 at the bottom of the bottle, and the component cost is reduced.

In the water purification industry, the filter materials are divided into full-volume filtration and cross-flow filtration from the filtration form, the full-volume filtration means that all water molecules in the stock solution permeate through the filter materials, no concentrated solution flows out, and the forms of the water paths are a water inlet water path and a water outlet water path, such as an activated carbon filter material, a granular carbon filter material, a carbon fiber filter material, a PP cotton filter material or an UF filter material; in the cross-flow filtration, only a part of water molecules pass through the filter material during filtration, and the other part of the water molecules form concentrated liquid and then are discharged, such as a reverse osmosis membrane, a nanofiltration membrane and the like; in all the embodiments described above, the filter element 1 is a full-volume filter element 1, which may be any one of an activated carbon filter element, a granular carbon filter element, a composite carbon fiber filter element, a PP cotton filter element, or an UF filter element, and these filter elements are all existing filter element products in the market, and the detailed description of the structure is omitted, and the specific structure of each filter element is shown in fig. 7.

The following describes in detail the assembling, disassembling and filtering process of the segmented combined composite filter element with one water inlet and outlet end provided by the embodiment of the present application:

when concatenating cartridge between filter core 100 and bottom filter core 200 and concatenating the cartridge between the filter core 100, the joint boss 102 of the bottleneck of subordinate's filter core is by the joint piece 7 chucking of higher level's filter core, realizes that the joint between the filter core is connected, makes all concatenate filter core 100 and bottom filter core 200 and become a whole, is formed with following connection structure after the mutual cartridge of filter core simultaneously:

according to the difference of the two implementation modes adopted by the filter element 200 at the bottom end, finally, a seal is formed between the outer wall of the bottle mouth of the first outer barrel 2 of the filter element 200 at the bottom end and the inner wall of the inner hole of the stepped hole 101 at the lower end of the first outer barrel 2 of the filter element 100 connected in series at the upper stage, and a seal is formed between the outer wall of the bottle mouth of the first outer barrel 2 or the outer barrel 12 of the filter element 100 at the bottom end and the inner wall of the inner hole of the stepped hole 101 at the lower end of the first outer barrel 2 of the filter element 100 connected in series at the upper end of the flow path guide of the filter element 200 at the bottom end and the inner wall of the inner hole of the stepped hole 101 at the lower end of the filter element 100 connected in series at the upper stage;

thus, the water inlet flow path L1 of the filter element 100 connected in series is respectively communicated with the raw water inlet K1 of the filter element 100 and the raw water inlet K1 of the filter element 100 connected in series adjacent to the filter element, the water outlet flow path L2 of the filter element 100 connected in series is respectively communicated with the filtered water outlet K2 of the filter element connected in series adjacent to the filter element, the raw water inlet K1 of the filter element 200 at the bottom end is respectively communicated with the water inlet flow path L1 of the filter element 200 connected in series adjacent to the filter element L1, the filtered water outlet K2 of the filter element 200 at the bottom end is respectively communicated with the water outlet flow path L2 of the filter element 200 connected in series adjacent to the filter element L2, and finally the series connection of the water inlet flow path L1 and the water outlet flow path L2 among all the filter elements is achieved; raw water flows in from a raw water inlet K1 of the serial filter element 100 positioned at the topmost end, flows into the filter element 200 at the bottom end through an independent water inlet flow path connected in series, and enters the water outlet flow path L2 to be filtered step by step through the filter material component 1 of each filter element because the water inlet flow path L1 and the water outlet flow path L2 of the filter element 200 at the bottom end can be communicated with each other, and finally flows out from a filtered water outlet K2 of the serial filter element 100 positioned at the topmost end;

when carrying out the dismantlement between the filter core, press and be about to dismantle the button that the filter core corresponds, drive block 8 carries out horizontal migration under the key pressure effect, and drive joint piece 7 through oblique guide pillar 801 removes to the direction of keeping away from the axis, so joint piece 7 just breaks away from the card shelves effect to joint boss 102, directly with the filter core that corresponds extract can, so just realized concatenating the dismantlement between filter core 100 or the bottom filter core 200 wantonly.

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. Moreover, 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 protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.

Claims (13)

1. The segmented combined type composite filter element with one water inlet and outlet end is characterized by comprising 1 bottom end filter element and more than 1 tandem filter element, wherein a bottle mouth of the tandem filter element positioned at the lower stage is sequentially inserted at the bottle bottom of the tandem filter element positioned at the upper stage to form a whole, and the bottom end filter element is inserted at the bottle bottom of the filter element adjacent to the bottom end filter element;

the segmented combined type composite filter element with water inlet and outlet at one end and the water inlet and outlet communicated with the outside are arranged at the bottle mouth of the filter element which is positioned at the top end and connected in series;

the inside of concatenating the filter core is equipped with the water inlet flow path and the play water flow path that do not communicate each other, and its water inlet flow path communicates each other between two adjacent concatenations the filter core, goes out the water flow path and communicates each other, be equipped with filter media assembly on the play water flow path of concatenating the filter core, the bottom filter core is equipped with the water inlet flow path and the play water flow path that lead to water each other, the water inlet flow path and the play water flow path of bottom filter core communicate with the water inlet flow path and the play water flow path of its adjacent filter core of concatenating each other independently each other respectively.

2. The composite filter element of claim 1, wherein the water inlet ends of the series-connected filter element and the bottom filter element are respectively provided with a raw water inlet and a filtered water outlet, the water inlet flow path of the series-connected filter element is respectively communicated with the raw water inlet of the series-connected filter element and the raw water inlet of the adjacent series-connected filter element, and the water outlet flow path of the series-connected filter element is respectively communicated with the filtered water outlet of the series-connected filter element and the filtered water outlet of the adjacent series-connected filter element;

the raw water inlet of the bottom filter element is respectively communicated with the water inlet flow path of the bottom filter element and the water inlet flow path of the filter element adjacent to the bottom filter element in series connection, and the filtered water outlet of the bottom filter element is respectively communicated with the water outlet flow path of the bottom filter element and the water outlet flow path of the filter element adjacent to the bottom filter element in series connection.

3. The segmented composite filter element with water inlet and outlet at one end according to claim 1, wherein the filter element is a full volume filter element.

4. The composite filter element with one end provided with water inlet and outlet according to claim 2, wherein the filter element connected in series comprises a first outer cylinder, the upper end of the first outer cylinder is provided with a convex bottle mouth, the lower end of the first outer cylinder is provided with a stepped hole, the outer wall of the convex bottle mouth of the first outer cylinder is provided with a clamping boss, and the outer hole of the stepped hole of the first outer cylinder is provided with a clamping block.

5. The composite filter element of claim 4, wherein the engaging pieces are symmetrically arranged in 2 pieces and can elastically slide in a telescopic manner in a direction away from or close to the central axis of the filter element.

6. The segmented combined composite filter element with water inlet and outlet at one end according to claim 4, wherein a separating cylinder is arranged inside the first filter element outer cylinder in series connection to separate the inside of the first outer cylinder into two independent cavities, and a filter material component is arranged inside the separating cylinder.

7. The composite filter element of claim 6, wherein the upper end of the separating cylinder extends to the mouth of the first outer cylinder to separate the mouth into the raw water inlet and the filtered water outlet of the filter element connected in series, and the lower end of the separating cylinder extends to the stepped hole at the lower end of the first outer cylinder.

8. The composite filter element of claim 6, wherein the separating cylinder comprises a diversion tower, a cylinder body and a lower end cap, and the diversion tower and the lower end cap are respectively arranged at two ends of the cylinder body.

9. The composite filter element of claim 6, wherein the cavity between the separating cylinder and the first outer cylinder forms a water inlet flow path of the filter element in series, and the separating cylinder forms a water outlet flow path of the filter element in series.

10. The sectional combined type composite filter element with one end for water inlet and outlet according to any one of claims 4 to 8, wherein the filter element at the bottom end comprises a filter element and a blocking cover which are connected in series and assembled by the filter element and the blocking cover, the blocking cover is provided with a clamping boss at the outer wall, the blocking cover is clamped in a stepped hole of the first outer barrel through a clamping block, and the outer wall of the blocking cover and the inner wall of the inner hole of the stepped hole are arranged in a sealing way;

and a water inlet flow path of the bottom filter element is formed between the filter material assembly and the outer barrel I, and a water outlet flow path of the bottom filter element is formed inside the filter material assembly.

11. The segmented combined composite filter element with one end for water inlet and outlet according to claim 2, wherein the bottom filter element comprises a second outer barrel, a filter material component and a diversion tower, wherein a convex bottle mouth is arranged at the upper end of the second outer barrel, a closed bottle bottom is arranged at the lower end of the second outer barrel, the filter material component is arranged inside the second outer barrel, and the diversion tower is arranged inside the bottle mouth of the second outer barrel and is used for dividing the bottle mouth into a raw water inlet and a filtered water outlet of the bottom filter element;

the upper end of the filter material component is in sealing butt joint with the lower end of the diversion tower.

12. The composite filter element of claim 11, wherein a water inlet flow path of the bottom filter element is formed between the filter element and the outer cylinder, a water outlet flow path of the bottom filter element is formed inside the filter element, and water in the water inlet flow path of the bottom filter element can enter the water outlet flow path of the bottom filter element after being filtered by the filter material.

13. A water purifying device, characterized in that the water purifying device is provided with a sectional combined type composite filter element with one end for water inlet and outlet according to any one of claims 1 to 12.

Images