CN221027745U - Composite filter element and water purifier - Google Patents

Abstract

The utility model discloses a composite filter element and a water purifier, wherein the water purifier comprises a composite filter element, the composite filter element comprises a first filter component, the first filter component comprises a filter element cover, an upper end cover, a filter element and a partition piece, and the upper end cover is connected with the filter element cover; the filter element is connected to the upper end cover and comprises a first filter element and a second filter element; a separator is positioned between the first filter element and the second filter element, the separator being configured to separate the first filter element from the second filter element; one of the first filter element and the second filter element is a front filter element, and the other one is a rear filter element. According to the technical scheme, the front filter element and the rear filter element are integrally arranged, and the front filter element and the rear filter element are separated through the separation plate, so that the space occupied by the front filter element and the rear filter element in the first filter assembly is reduced, and the miniature arrangement of the water purifier is facilitated.

Description

Composite filter element and water purifier

Technical Field

The utility model relates to the technical field of water purification, in particular to a composite filter element and a water purifier.

Background

In order to improve the quality of drinking water, a common water purifier generally reduces impurities in raw water through multi-stage filtration.

The existing water purifier is generally provided with a front filter element and a rear filter element, and the front filter element and the rear filter element are respectively arranged in two filter bottles, so that the size of a filter module in the water purifier is large, a large space is occupied, and the miniaturization requirement of the filter module in the water purifier is not facilitated.

Disclosure of utility model

The utility model mainly aims to provide a composite filter element, which aims to reduce the space occupied by a front filter element and a rear filter element.

To achieve the above object, the present utility model provides a composite filter element, including a first filter assembly, the first filter assembly including:

a cartridge cover;

The upper end cover is connected with the filter element cover;

The filter element is connected to the upper end cover and comprises a first filter element and a second filter element;

A separator for separating the first filter cartridge from the second filter cartridge;

One of the first filter element and the second filter element is a front filter element, and the other one is a rear filter element.

In one embodiment, the first filter element is located on an upper side of the second filter element.

In one embodiment, the first filter element and the second filter element are coaxially disposed.

In one embodiment, one end of the first filter element is connected to the upper end cap, and the other end of the first filter element is connected to the separator.

In one embodiment, the separator comprises a separator plate and a cylinder, wherein the separator plate is used for separating the first filter element and the second filter element, the cylinder extends from the separator plate towards the second filter element, and the second filter element is positioned in the cylinder.

In an embodiment, first filter core water inlet, first filter core delivery port and second filter core delivery port have been seted up on the filter core lid, the second filter core water inlet has been seted up on the barrel, first filter core is the cavity setting, first filter core middle part is formed with first water channel, follow the water that first filter core water inlet flows in is through after first filter core filters first water channel follow first filter core delivery port flows, first filter component still includes:

The water outlet pipe is positioned in the first water passing channel, one end of the water outlet pipe is connected with the filter element cover, one end of the water outlet pipe is connected with the separating piece, and water flowing in from the water inlet of the second filter element flows out from the water outlet of the second filter element through the water outlet pipe after being filtered by the second filter element.

In an embodiment, the filter element cover is provided with a first slot corresponding to the water outlet pipe, one end of the water outlet pipe is inserted into the first slot, and the first slot is communicated with the water outlet of the second filter element.

In an embodiment, the partition plate is provided with a protruding portion towards the first filter element, the protruding portion corresponds to the water outlet pipe is provided with a second slot, the other end of the water outlet pipe is inserted into the second slot, the second filter element is in a hollow arrangement, a second water passing channel is arranged in the middle of the second filter element, and the second slot is communicated with the second water passing channel.

In an embodiment, the partition further comprises a first limiting portion extending from the partition plate toward the filter element cover, the first limiting portion is circumferentially disposed on the periphery of the first filter element, and the first limiting portion is used for limiting one end of the first filter element, which is close to the partition member.

In an embodiment, the upper end cover includes a second limiting portion extending toward the first filter element, the second limiting portion is disposed around the periphery of the first filter element, and the second limiting portion is used for limiting one end of the first filter element, which is close to the upper end cover.

In an embodiment, the partition plate is provided with a second protruding portion facing the second filter element, a groove is formed in the middle of the second protruding portion, and the groove is communicated with the second slot.

In an embodiment, the opening is seted up to one side of barrel keeping away from first filter core, first filter component still includes the bottom end cover, the bottom end cover is connected the separator, the one end of second filter core with the division board links to each other, the bottom end cover is used for accepting the other end of second filter core.

The utility model also provides a water purifier, which comprises a composite filter element, wherein the composite filter element comprises a first filter component, the first filter component comprises a filter element cover, an upper end cover, a filter element and a partition piece, and the upper end cover is connected with the filter element cover; the filter element is connected to the upper end cover and comprises a first filter element and a second filter element; the separator is positioned between the first filter element and the second filter element, the separator being configured to separate the first filter element from the second filter element; one of the first filter element and the second filter element is a front filter element, and the other one is a rear filter element.

According to the technical scheme, the front filter element and the rear filter element are integrally arranged, and the front filter element and the rear filter element are separated through the separation plate, so that the space occupied by the front filter element and the rear filter element in the first filter assembly is reduced, and the miniature arrangement of the water purifier is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a composite filter element of the present utility model;

FIG. 2 is a schematic structural view of the composite filter element at a cross-sectional view;

FIG. 3 is a schematic view of a first filter assembly;

FIG. 4 is an exploded view of the first filter assembly;

FIG. 5 is a schematic view of the first filter assembly in a cross-sectional view;

FIG. 6 is an enlarged view of FIG. 3 at A;

FIG. 7 is an enlarged view at B in FIG. 5;

FIG. 8 is an enlarged view at C in FIG. 5;

FIG. 9 is a schematic view of the cartridge cover, upper end cap, pre-cartridge, post-cartridge, separator and lower end cap in a cross-sectional view;

FIG. 10 is an exploded view of the second filter assembly;

FIG. 11 is an exploded view of the filter cap assembly;

Fig. 12 is a schematic view of the structure of the cartridge cover and cartridge handle.

Reference numerals illustrate:

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a composite filter element 10 which is used for being installed in water purifying equipment to filter raw water (namely tap water) passing through the composite filter element, so that the water quality meets the requirements of users and is used by the users.

Referring to fig. 1 to 11, a composite filter element 10 according to the present utility model includes a filter flask 100, a first filter assembly 200, a second filter assembly 300, and a filter cap assembly 400; the filter bottle 100 is internally provided with a containing cavity 110, the first filter assembly 200 and the second filter assembly 300 are disposed in the containing cavity 110, and the first filter assembly 200 is disposed in the second filter assembly 300, or the second filter assembly 300 is disposed in the first filter assembly 200, and it should be noted that the first filter assembly 200 and the second filter assembly 300 are disposed in two independent cavities in the filter bottle 100 respectively. The filter bottle 100 is in a barrel shape, the upper end of the filter bottle is open, and the filter cover assembly 400 covers the open. The filter cap assembly 400 is provided with at least one water inlet end and at least one water outlet end, both of which are in communication with the receiving chamber 110.

Specifically, the filter flask 100 is configured to be installed in a water purifying apparatus, and the second filter assembly 300 and the first filter assembly 200 are both disposed in the accommodating cavity 110 of the filter flask 100; the first filter assembly 200 filters impurities contained in water and/or improves taste of water, and the second filter assembly 300 filters solutes such as salt ions in water, thereby reducing concentration of the solutes such as salt ions in water and reducing TDS value of raw water.

The second filter assembly 300 comprises a reverse osmosis filter element 310, a central tube 340, a reverse osmosis top cover 320 and a reverse osmosis bottom cover 330, wherein the reverse osmosis filter element 310 is sleeved on the outer wall surface of the central tube 340, the reverse osmosis filter element 310 is arranged between the reverse osmosis top cover 320 and the reverse osmosis bottom cover 330, the upper end and the lower end of the reverse osmosis filter element 310 are fixed through the reverse osmosis top cover 320 and the reverse osmosis bottom cover 330, and further, reverse osmosis filter element grooves for embedding the end parts of the reverse osmosis filter element 310 are also arranged on the reverse osmosis top cover 320 and the reverse osmosis bottom cover 330; thus, reverse osmosis top cap 320 and reverse osmosis bottom cap 330 cooperate to secure reverse osmosis cartridge 310 within filter flask 100.

The filter cap assembly 400 comprises a filter cap 410, a filter bottle handle 420 and a decorative cap 430, wherein the filter bottle handle 420 is rotatably connected with the filter bottle cap 410, and the decorative cap 430 covers the filter bottle cap 410.

In an embodiment of the present utility model, as shown in fig. 3 to 9, the first filter assembly 200 includes a cartridge cover 210, an upper end cap 250, a cartridge 220, and a partition 280, wherein the upper end cap 250 is connected to the cartridge cover 210; the filter cartridge 220 is connected to the upper end cap 250, and the filter cartridge 220 includes a first filter cartridge 221 and a second filter cartridge 222; the separator 280 serves to separate the first filter element 221 from the second filter element 222; one of the first filter element 221 and the second filter element 222 is a pre-filter element, and the other is a post-filter element.

Specifically, the composite filter element 10 includes a first filter element 200, and the composite filter element 10 is integrally disposed in the filter flask 100, and the first filter element 200 is correspondingly integrally disposed. In this embodiment, the filter cartridge 220 includes at least a pre-cartridge and a post-cartridge, and the composite filter cartridge 10 may include a reverse osmosis filter cartridge 310.

It should be noted that, the first filter assembly 200 includes the filter element cover 210, and considering that the service life of the pre-filter element is short, and the filter element 220 needs to be replaced after a certain period of time, the filter element cover 210 is provided with the filter element handle 270 in a rotating fit with the filter element cover, and the whole first filter assembly 200 is lifted out of the central tube 340 through the filter element handle 270, so that the first filter assembly 200 is easy to be replaced. In consideration of the fact that the service life of the reverse osmosis filter element 310 is far longer than that of the pre-filter element, in order to avoid that the reverse osmosis filter element 310 is replaced when not reaching the service life, only the first filter assembly 200 can be replaced without replacing the second filter assembly 300, so that the replacement cost is reduced, and the reverse osmosis filter element 310 in the second filter assembly 300 is fully utilized.

Further, the upper end cap 250 is connected to the filter element cover 210, and in this embodiment, the upper end cap 250 and the filter element cover 210 are hermetically connected, and of course, the upper end cap 250 and the filter element cover 210 may be glued or welded, which is not specifically limited herein. The upper end cap 250 is connected to the filter element 220 for fixing the filter element 220, wherein the filter element 220 includes a first filter element 221 and a second filter element 222, and the upper end cap 250 may be connected to the first filter element 221, or may be connected to the second filter element 222, or may be connected to both the first filter element 221 and the second filter element 222, which is not limited herein.

The partition 280 is connected with the central tube 340 outside the first filter assembly 200 in a sealing manner, the partition 280 divides the interior of the central tube 340 into two first filter cavities and second filter cavities which are not communicated with each other, in this embodiment, the first filter cavities are enclosed by the filter element cover 210, the upper end cover 250, the central tube 340 and the partition 280, and the second filter cavities are enclosed by the partition 280 and the central tube 340. Wherein the first filter element 221 is located in the first filter chamber and the second filter element 222 is located in the second filter chamber.

The first filter element 221 and the second filter element 222 may be disposed in a cylindrical shape, and the first filter element 221 and the second filter element 222 may be disposed in a semi-cylindrical shape, i.e., the cylindrical shape is cut into half of the original cylindrical shape along the radial direction of the cylindrical shape. When the first filter element 221 and the second filter element 222 are arranged in a tubular shape, the first filter element 221 and the second filter element 222 may be arranged up and down, that is, the first filter element 221 is located on the upper side of the second filter element 222 or the second filter element 222 is located on the upper side of the first filter element 221; the first filter element 221 and the second filter element 222 may also be disposed internally and externally, i.e., the first filter element 221 is located within the second filter element 222 or the second filter element 222 is located within the first filter element 221. When the first filter element 221 and the second filter element 222 are arranged in a semi-cylindrical shape, the first filter element 221 and the second filter element 222 may be substantially split into a complete cylindrical shape, with the middle being separated by the partition 280. The foregoing are alternative embodiments of the first filter element 221 and the second filter element 222, and are not specifically defined herein.

One of the first filter element 221 and the second filter element 222 is a front filter element, and the other is a rear filter element. The front filter core is generally the first water purifying step of the water purifier and is used for filtering out larger particles or flocs and the like in water, and the rear filter core is generally the last water purifying step of the water purifier and is used for adjusting the taste of purified water. Alternatively, the first filter element 221 may be a pre-filter element, and the second filter element 222 may be a post-filter element; the first filter element 221 may be a post-filter element, and the second filter element 222 may be a pre-filter element, and is not particularly limited herein.

It should be noted that, in the present embodiment, the first filter cavity and the second filter cavity are both provided with a water inlet and a water outlet on the first filter assembly 200, and water entering the water inlet flows through the first filter element 221 or flows through the second filter element 222, and then flows out from the water outlet. The water inlet and outlet may be provided on the cartridge cover 210, on the upper end cap 250, or on the center tube 340, which is not specifically limited herein.

According to the technical scheme, the front filter element and the rear filter element are integrally arranged, and the front filter element and the rear filter element are separated through the separation plate 281, so that the space occupied by the front filter element and the rear filter element in the first filter assembly 200 is reduced, and the miniature arrangement of the water purifier is facilitated.

In one embodiment, referring to fig. 5, the first filter element 221 is located on the upper side of the second filter element 222.

According to the above embodiment, when the first filter element 221 and the second filter element 222 are arranged in a cylindrical shape, the first filter element 221 and the second filter element 222 may be arranged up and down, or may be arranged inside and outside, and considering that one of the first filter element 221 and the second filter element 222 is a front filter element and the other is a rear filter element, the front filter element is used for adsorbing large particles in raw water, and the length of the front filter element is greater than that of the rear filter element, so that a part of space is wasted if the first filter element 221 and the second filter element 222 are arranged inside and outside, and therefore the first filter element 221 is arranged on the upper side of the second filter element 222.

In one embodiment, referring to fig. 5, the first filter element 221 and the second filter element 222 are coaxially disposed.

The first filter element 221 and the second filter element 222 are coaxially arranged, so that the axial space occupied by the filter element 220 can be further reduced, and furthermore, the first filter element 221 and the second filter element 222 are coaxially arranged, so that the installation is simpler and more convenient, and the internal flow path is easy to arrange.

In one embodiment, referring to fig. 3 and 5, one end of the first filter element 221 is connected to the upper end cap 250, and the other end of the first filter element 221 is connected to the partition 280.

In consideration, when the water purifier starts to be started, the first filter element 221 is filled with water, and the first filter element 221 moves up and down in the first filter cavity due to the influence of gravity or buoyancy, the first filter element 221 may be deformed due to the pressure, and thus the filtering effect of the first filter element 221 may be adversely affected. In view of this, one end of the first filter cartridge 221 is connected to the upper end cap 250, and the other end of the first filter cartridge 221 is connected to the partition 280, so that the relative position of the first filter cartridge 221 is fixed. The first filter element 221 and the upper end cover 250 are connected by gluing in this embodiment, and the first filter element 221 and the partition 280 are also connected by gluing.

Further, the upper end cover 250 has a first connection surface 252 glued to the first filter element 221, a plurality of first ribs 252a are provided on the first connection surface 252, and one end of the first ribs 252a near the first filter element 221 is provided in a sharp manner, so that the first ribs 252a are inserted into the first filter element 221, and the first filter element 221 is further fixed. Similarly, the partition 280 has a second connection surface 281c glued to the first filter element 221, and a plurality of second ribs 281c1 are disposed on the second connection surface 281c, and one end of the second ribs 281c1 near the first filter element 221 is disposed sharply, so that the second ribs 281c1 are inserted into the first filter element 221, and further fix the first filter element 221.

In an embodiment, referring to fig. 4 and 5, the partition 280 includes a partition plate 281 and a cylinder 282, the partition plate 281 is used to partition the first filter element 221 and the second filter element 222, the cylinder 282 is formed by extending from the partition plate 281 toward the second filter element 222, and the second filter element 222 is located in the cylinder 282.

The partition 280 includes a partition plate 281 and a cylinder 282 that are connected to each other, and the partition plate 281 and the cylinder 282 may be welded to each other or may be integrally fused. The second filter element 222 is fully placed in the cylinder 282, which can further protect the second filter element 222 from excessive water pressure, thereby squeezing the second filter element 222.

In an embodiment, referring to fig. 5 and 6, the filter cover 210 is provided with a first filter inlet 211, a first filter outlet 212 and a second filter outlet 213, the cylinder 282 is provided with a second filter inlet 211, the first filter 221 is hollow, a first water channel 221a is formed in the middle of the first filter 221, and water flowing in from the first filter inlet 211 flows out from the first filter outlet 212 through the first water channel 221a after being filtered by the first filter 221, and the first filter assembly 200 further includes:

The water outlet pipe 230 is located in the first water passing channel 221a, one end of the water outlet pipe 230 is connected to the filter element cover 210, one end of the water outlet pipe 230 is connected to the partition 280, and the water flowing in from the second filter element water inlet 211 is filtered by the second filter element 222 and flows out from the second filter element water outlet 213 through the water outlet pipe 230.

Specifically, in the present embodiment, a first cartridge water inlet 211 and a first cartridge water outlet 212 are provided in the cartridge cover 210. Of course, the first filter element water inlet 211 and the first filter element water outlet 212 may also be formed on the cylinder 282, and the first filter element water inlet 211 and the first filter element water outlet 212 may also be formed on the upper end cover 250. A water passing gap is formed between the central cylinder and the first filter element 221, the water passing gap is communicated with the first filter element water inlet 211, water flows into the first filter assembly 200 from the first filter element water inlet 211, flows into the first filter element 221 through the water passing gap for filtering, and filtered water filtered by the first filter element 221 flows out from the first filter element water outlet 212 through the first water passing channel 221 a.

The filter element cover 210 is also provided with a second filter element water outlet 213, and the cylinder 282 is provided with a second filter element water inlet 211 corresponding to the second filter cavity. Because this first filter assembly 200 is integrally disposed, in order to simplify the external flow path, a water outlet pipe 230 is disposed in the first water channel 221a, the water outlet pipe 230 is disposed in a cylindrical shape, one end of the water outlet pipe 230 is connected to the filter cover 210 and is communicated with the second filter outlet 213, and the other end of the water outlet pipe 230 is connected to the partition 280 and is communicated with the filtered water flowing through the second filter 222. The water flows in from the second filter element water inlet 211, is filtered by the second filter element 222, and flows out from the second filter element water outlet 213 through the water outlet pipe 230.

Optionally, referring to fig. 5 and 9, the filter element cover 210 is provided with a first slot 214 corresponding to the water outlet pipe 230, one end of the water outlet pipe 230 is inserted into the first slot 214, and the first slot 214 is communicated with the second filter element water outlet 213.

According to the previous embodiment, one end of the water outlet pipe 230 is connected to the cartridge cover 210. Further, the filter element cover 210 is provided with a first slot 214 corresponding to the water outlet pipe 230, one end of the water outlet pipe 230 is inserted into the first slot 214, and the first slot 214 is communicated with the second filter element water outlet 213. The caliber is basically consistent with the outer diameter of the water outlet pipe 230, so that the first slot 214 can well limit the water outlet pipe 230. Considering that the water outlet pipe 230 should be spaced apart from the first water passing channel 221a, a first sealing ring 510 is provided between the water outlet pipe 230 and the first slot 214, and the water outlet pipe 230 is spaced apart from the first water passing channel 221a by the first sealing ring 510.

Alternatively, referring to fig. 8 and 9, the partition plate 281 is provided with a protrusion 281a towards the first filter element 221, the protrusion 281a is provided with a second slot 281a1 corresponding to the water outlet pipe 230, the other end of the water outlet pipe 230 is inserted into the second slot 281a1, the second filter element 222 is hollow, a second water passing channel 222a is provided in the middle of the second filter element 222, and the second slot 281a1 is communicated with the second water passing channel 222a.

According to the above embodiment, the partition 280 includes the partition 281, and in view of the thickness of the partition 281 being thin, it is difficult to form a deep slot for limiting the water outlet pipe 230, and in view of this, the partition 281 is provided with a protrusion 281a toward the first filter element 221, and the protrusion 281a is provided with a second slot 281a1 corresponding to the water outlet pipe 230. The caliber of the second slot 281a1 is substantially consistent with the outer diameter of the water outlet pipe 230, so that the water outlet pipe 230 is well limited after the second slot 281a1 is put in. In consideration of that the water outlet pipe 230 should be spaced apart from the second water passing passage 222a, a second sealing ring 520 is provided between the water outlet pipe 230 and the second slot 281a1, and the water outlet pipe 230 is spaced apart from the first water passing passage 221a by the second sealing ring 520.

In an embodiment, referring to fig. 5 to 8, the separating member 280 further includes a first limiting portion extending from the separating plate 281 toward the filter cover 210, where the first limiting portion is disposed around the outer periphery of the first filter element 221, and the first limiting portion is configured to limit an end of the first filter element 221 near the separating member 280.

Specifically, the first limiting portion is disposed around the outer periphery of the first filter element 221, and is used for limiting one end of the first filter element 221, which is close to the partition 280, so as to prevent the first filter element 221 from being extruded outwards to deform due to excessive internal water pressure.

In an embodiment, referring to fig. 8, the upper end cap 250 includes a second limiting portion 251 extending toward the first filter element 221, the second limiting portion 251 is disposed around the outer periphery of the first filter element 221, and the second limiting portion 251 is configured to limit an end of the first filter element 221 near the upper end cap 250.

According to the above embodiment, in the present embodiment, the second limiting portion 251 is disposed around the outer periphery of the first filter element 221 and is used for limiting one end of the first filter element 221 near the upper end cover 250, so that the first limiting portion and the second limiting portion 251 respectively limit two ends of the first filter element 221, further preventing the first filter element 221 from being extruded outwards to deform due to excessive internal water pressure, and having a good limiting function under the condition of less consumables.

In an embodiment, referring to fig. 8, the partition plate 281 is provided with a second protrusion 281a facing the second filter 222, and a groove is formed in the middle of the second protrusion 281a, and the groove is communicated with the second slot 281a1.

In this embodiment, the second protrusion 281a is further disposed towards the second filter element 222, and the second protrusion 281a is opposite to the first protrusion 281a, and a groove is formed in the middle of the second protrusion 281a, and the groove is communicated with the second slot 281a1 to keep the water outlet of the second filter element 222 in communication, where the second protrusion 281a is used for enhancing the structural strength of the partition 280, especially for enhancing the structural strength of the partition 281.

In an embodiment, referring to fig. 5, an opening 282b is formed on a side of the cylinder 282 away from the first filter element 221, the first filter assembly 200 further includes a lower end cap 260, the lower end cap 260 is connected to the partition 281, one end of the second filter element 222 is connected to the partition 281, and the lower end cap 260 is used for receiving the other end of the second filter element 222.

Specifically, an opening 282b is formed in a side of the cylinder 282 away from the first filter element 221, wherein the opening 282b is formed for loading the second filter element 222 into the partition 281, and after the second filter element 222 is loaded into the partition 281, the lower end cap 260 is plugged into the partition 281 from the opening 282b, and the lower end cap 260 is in interference fit with an inner wall of the partition 281. Wherein one end of the second filter element 222 is connected to the partition plate 281, where the connection is glue joint, and the lower end cover 260 is used to receive the other end of the second filter element 222, where the lower end cover 260 may or may not be connected to the second filter element 222.

The utility model also provides a water purifier, which comprises the composite filter element 10, and the specific structure of the composite filter element 10 refers to the embodiment, and as the water purifier adopts all the technical schemes of all the embodiments, the water purifier at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (13)

1. A composite filter cartridge comprising a first filter assembly, the first filter assembly comprising:

a cartridge cover;

The upper end cover is connected with the filter element cover;

The filter element is connected to the upper end cover and comprises a first filter element and a second filter element;

A separator for separating the first filter cartridge from the second filter cartridge;

One of the first filter element and the second filter element is a front filter element, and the other one is a rear filter element.

2. The composite filter element of claim 1, wherein the first filter element is located on an upper side of the second filter element.

3. The composite filter element of claim 2, wherein the first filter element and the second filter element are coaxially disposed.

4. The composite filter element of claim 2, wherein one end of the first filter element is connected to the upper end cap and the other end of the first filter element is connected to the separator.

5. The composite filter element of claim 4, wherein the separator comprises a separator plate and a cylinder, the separator plate separating the first filter element and the second filter element, the cylinder extending from the separator plate toward the second filter element, the second filter element being positioned within the cylinder.

6. The composite filter element of claim 5, wherein the filter element cover is provided with a first filter element water inlet, a first filter element water outlet and a second filter element water outlet, the cylinder is provided with a second filter element water inlet, the first filter element is in a hollow arrangement, a first water channel is formed in the middle of the first filter element, water flowing in from the first filter element water inlet flows out from the first filter element water outlet through the first water channel after being filtered by the first filter element, and the first filter assembly further comprises:

The water outlet pipe is positioned in the first water passing channel, one end of the water outlet pipe is connected with the filter element cover, one end of the water outlet pipe is connected with the separating piece, and water flowing in from the water inlet of the second filter element flows out from the water outlet of the second filter element through the water outlet pipe after being filtered by the second filter element.

7. The composite filter element of claim 6, wherein the filter element cover defines a first slot corresponding to the outlet tube, one end of the outlet tube is inserted into the first slot, and the first slot is connected to the second filter element outlet.

8. The composite filter element of claim 7, wherein the separator plate is provided with a protruding portion facing the first filter element, the protruding portion is provided with a second slot corresponding to the water outlet pipe, the other end of the water outlet pipe is inserted into the second slot, the second filter element is arranged in a hollow manner, a second water passing channel is arranged in the middle of the second filter element, and the second slot is communicated with the second water passing channel.

9. The composite filter element of claim 5, wherein the separator further comprises a first stop portion extending from the divider toward the filter element cover, the first stop portion being circumferentially disposed about the outer periphery of the first filter element, the first stop portion being configured to stop the first filter element from an end adjacent the separator.

10. The composite filter element of claim 9, wherein the upper end cap includes a second stop portion extending toward the first filter element, the second stop portion being circumferentially disposed about the first filter element, the second stop portion being configured to stop the first filter element from an end adjacent the upper end cap.

11. The composite filter element of claim 8, wherein the separator plate is provided with a second protrusion facing the second filter element, a groove is formed in the middle of the second protrusion, and the groove is communicated with the second slot.

12. The composite filter cartridge of claim 5, wherein an opening is provided in a side of the cartridge body remote from the first filter cartridge, the first filter assembly further comprising a lower end cap, the lower end cap being connected to the separator, one end of the second filter cartridge being connected to the separator, the lower end cap being adapted to receive the other end of the second filter cartridge.

13. A water purifier comprising a composite filter element according to any one of claims 1 to 12.