Filter element assembly and filtering system

Abstract

The utility model discloses a filter element assembly and filtration system, wherein the filter element assembly comprises a shell and a filter material assembly, the shell is provided with a containing cavity, a water inlet, a water outlet and a sewage draining exit, the water inlet is communicated with the containing cavity, the filter material assembly is arranged in the containing cavity, the filter material assembly is provided with a water purification channel and a sewage draining channel, the filter material assembly is connected with the shell, and the shell is provided with a water inlet and a water outlet. The clean water channel communicates with the cavity and the water outlet to form a clean water path, the blow-off channel communicates with the cavity and the blow-off port to form a blow-off path, and an inlet of the clean water channel communicating with the cavity is smaller than an inlet of the blow-off channel communicating with the cavity. Through the structure, when the filter element assembly is used for sewage discharge or filtration, the sewage discharge or filtration is realized through the corresponding independent water path and the corresponding sewage discharge port or water outlet, so that compared with a traditional filter element assembly, the filter element assembly has the advantages that the sanitary safety is improved; therefore, higher sanitary safety requirements of some users can be met.

Description

Technical Field

[0001] The utility model relates to the field of water filtration products, in particular to a filter element assembly and a filtration system. Background Art

[0002] In daily life or in the process of certain industrial production, users will install a filtration system to filter raw water (such as tap water, etc.) to obtain purified water, so as to meet the requirements of daily life or certain industrial production.

[0003] In the existing technology, the filter element assembly in the filtration system is the core component for water filtration. The filter element assembly includes a shell member and a filter medium member. The shell member is provided with a cavity, an inlet and an outlet communicating with the cavity. The filter medium member is arranged in the cavity so that the raw water entering from the inlet is filtered and discharged from the outlet, so that the filter element assembly completes the filtration work. Among them, when the filter element assembly reaches the preset cycle of use, the filter element assembly needs to carry out sewage discharge work through the outlet. However, both the sewage discharge work and the filtration work are realized through the outlet. Therefore, the sanitary safety of the filter element assembly is relatively low, and thus it cannot meet the higher sanitary safety requirements of some users. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a filter element assembly, which can improve the sanitary safety to meet the higher sanitary safety requirements of some users.

[0005] The utility model also provides a filtration system having the filter element assembly.

[0006] A filter element assembly according to an embodiment of the first aspect of the utility model includes a shell member and a filter medium assembly. The shell member is provided with a cavity, an inlet, an outlet and a sewage discharge port. The inlet communicates with the cavity. The filter medium assembly is arranged in the cavity. The filter medium assembly is provided with a purified water channel and a sewage discharge channel. The filter medium assembly is connected to the shell member. The purified water channel communicates the cavity and the outlet to form a purified water water path. The sewage discharge channel communicates the cavity and the sewage discharge port to form a sewage discharge water path. The inlet of the purified water channel communicating with the cavity is smaller than the inlet of the sewage discharge channel communicating with the cavity.

[0007] A filter element assembly according to an embodiment of the utility model has at least one of the following beneficial effects:

[0008] In an embodiment of the present utility model, the housing of the filter element assembly is provided with a cavity, a water inlet, a water outlet and a sewage outlet. The water inlet is communicated with the cavity. The filter element assembly is arranged in the cavity. The filter element assembly is provided with a clean water channel and a sewage channel. The filter element assembly is connected to the housing. The clean water channel communicates the cavity and the water outlet to form a clean water water path. The sewage channel communicates the cavity and the sewage outlet to form a sewage drainage water path. The inlet of the clean water channel communicating with the cavity is smaller than the inlet of the sewage channel communicating with the cavity.

[0009] According to the above structure, when the filter element assembly performs a filtering operation, the sewage outlet is closed and the water outlet is opened. The raw water entering the cavity from the water inlet will pass through the clean water channel and then be discharged from the water outlet (refer to the clean water water path L1). At this time, the water discharged from the water outlet is filtered clean water. When the filter element assembly performs a sewage discharge operation, the water outlet is closed and the sewage outlet is opened. The clean water entering the cavity from the water inlet will pass through the sewage channel and then be discharged from the sewage outlet (refer to the sewage drainage water path L2). At this time, the water discharged from the sewage outlet carries the dirt remaining in the cavity after being filtered. It can be seen from this that when the above filter element assembly performs a sewage discharge operation or a filtering operation, it passes through the corresponding independent water paths and is realized through the corresponding sewage outlet or water outlet. Therefore, compared with the traditional filter element assembly, the above filter element assembly has improved sanitary safety and can thus meet the higher sanitary safety requirements of some users.

[0010] According to some embodiments of the present utility model, the filter element assembly includes a first connecting member, a second connecting member and a filter element. The first connecting member is connected to the housing. The first connecting member has a hollow structure. The inner cavity of the first connecting member includes a first cavity section and a second cavity section arranged up and down. The second connecting member is connected to the housing. The second connecting member has a hollow structure. The inner cavity of the second connecting member is communicated with the sewage outlet. The second connecting member passes through the first connecting member. A first space is provided between the cavity side wall of the second connecting member and the first cavity section. The first space is communicated with the water outlet. The filter element passes through the second cavity section and is sleeved on the second connecting member. A second space is provided between the filter element and the cavity bottom wall of the second cavity section. The filter element is provided with a first channel and a second channel communicating with the cavity. The inlet of the first channel communicating with the cavity is smaller than the inlet of the second channel communicating with the cavity. Among them, the first channel, the second space and the first space are sequentially communicated to form the clean water channel. The second channel and the inner cavity of the second connecting member are sequentially communicated to form the sewage channel.

[0011] According to some embodiments of the present utility model, the housing member is provided with a third channel and a fourth channel. The third channel is provided with the water outlet, the first connecting member is disposed through the third channel, the first space is communicated with the water outlet through the third channel, the fourth channel is provided with the sewage outlet, the second connecting member is disposed through the fourth channel, and the inner cavity of the second connecting member is communicated with the sewage outlet through the fourth channel.

[0012] According to some embodiments of the present utility model, the housing member is provided with a connecting pipe portion, the inner cavity of the connecting pipe portion is communicated with the third channel, and the connecting pipe portion is connected with a pressure detecting member located outside.

[0013] According to some embodiments of the present utility model, the housing member includes a housing body member and a housing cover assembly. The housing body member is provided with an inner cavity, the inner cavity of the housing body member has an upwardly facing opening, the housing cover assembly is connected to the housing body member, the housing cover assembly closes the opening to enclose the inner cavity of the housing body member into the accommodating cavity, the housing cover assembly is provided with the water inlet, the water outlet and the sewage outlet, and both the first connecting member and the second connecting member are connected to the housing cover assembly.

[0014] According to some embodiments of the present utility model, the housing cover assembly is detachably connected to the housing body member, and the filter element member is detachably disposed through the second cavity section.

[0015] According to some embodiments of the present utility model, the housing cover assembly includes a first housing cover and a second housing cover. The first housing cover is connected to the housing body member, the first housing cover closes the opening to enclose the inner cavity of the housing body member into the accommodating cavity, the first housing cover is provided with an avoidance hole communicated with the accommodating cavity, the second housing cover is connected to the first housing cover, the second housing cover and the first housing cover are disposed up and down, the second housing cover is provided with the water inlet, the water outlet and the sewage outlet, and both the first connecting member and the second connecting member are connected to the second housing cover through the avoidance hole.

[0016] According to some embodiments of the present utility model, a panel member is clamped between the first housing cover and the second housing cover.

[0017] According to some embodiments of the present utility model, the sewage channel and the purified water channel are disposed inside and outside.

[0018] According to the filtration system of the second aspect embodiments of the present utility model, it includes a filter element assembly as described above.

[0019] The filtration system according to the embodiments of the present utility model has at least the following beneficial effects: through the above structure, the hygienic safety can be improved to meet the higher hygienic safety requirements of some users.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Brief Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a structural diagram of an embodiment of the filter element assembly of the present utility model;

[0023] Figure 2 is Figure 1 a cross-sectional view of the filter element assembly shown in ;

[0024] Figure 3 is Figure 2 a partially enlarged view of part A shown in ;

[0025] Figure 4 is Figure 1 a partial exploded view of the filter element assembly shown in ;

[0026] Figure 5 is Figure 1 a partial exploded view of the filter element assembly shown in after removing the panel member and the second housing member;

[0027] Figure 6 is Figure 5 a structural diagram of the first housing member shown in ;

[0028] Figure 7 is Figure 5 a partially enlarged view of part B shown in ;

[0029] Figure 8 is Figure 5 a partially enlarged view of part C shown in.

[0030] Reference Numerals:

[0031] housing member 100, housing body member 110, notch 111, positioning groove 111A, housing cover assembly 120, first housing cover 121, avoidance hole 121A, swing block 121B, positioning block 121B1, second housing cover 122, third channel 122A, water outlet 122A1, fourth channel 122B, sewage outlet 122B1, connecting pipe portion 122C, fifth channel 122D, water inlet 122D1;

[0032] filter media assembly 200, first connecting member 210, first cavity section 211, second cavity section 212, second connecting member 220, inner cavity 221 of the second connecting member, filter media member 230, first channel 231, second channel 232;

[0033] Panel member 300;

[0034] Cavity S1, first space S2, second space S3;

[0035] Purified water channel T1, sewage discharge channel T2;

[0036] Purified water waterway L1, sewage drainage waterway L2, water inlet waterway L3. Detailed implementation manners

[0037] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0038] In the description of the present invention, if the first, second, third, fourth, fifth, etc. are described, it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0039] In the description of the present invention, it should be understood that for the orientation description, such as up, down, front, back, left, right, etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0040] In the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected" should be understood in a broad sense. For example, it can be directly connected, or indirectly connected through an intermediate medium; it can be fixedly connected, or detachably connected, or integrally formed; it can be mechanically connected; it can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0041] Refer to Figures 1 to 8 , an embodiment of a filter element assembly of the present invention includes a housing member 100 and a filter medium assembly 200.

[0042] The housing member 100 is provided with a cavity S1, a water inlet 122D1, a water outlet 122A1 and a sewage outlet 122B1. The water inlet 122D1 is communicated with the cavity S1. The filter element assembly 200 is arranged in the cavity S1. The filter element assembly 200 is provided with a clean water channel T1 and a sewage channel T2. The filter element assembly 200 is connected to the housing member 100. The clean water channel T1 communicates the cavity S1 and the water outlet 122A1. The sewage channel T2 communicates the cavity S1 and the sewage outlet 122B1. The inlet of the clean water channel T1 communicating with the cavity S1 is smaller than the inlet of the sewage channel T2 communicating with the cavity S1.

[0043] It can be understood that the raw water enters the cavity S1 through the water inlet 122D1. The dirt in the above-mentioned raw water cannot pass through the inlet of the clean water channel T1 communicating with the cavity S1 and is filtered and retained in the cavity S1. Among them, the specific reference for the inlet of the clean water channel T1 communicating with the cavity S1 is Figure 8 as shown.

[0044] It can be understood that the inlet of the clean water channel T1 communicating with the cavity S1 is smaller than the inlet of the sewage channel T2 communicating with the cavity S1. The dirt filtered and retained in the cavity S1 can pass through the inlet of the sewage channel T2 communicating with the cavity S1 and is discharged through the sewage channel T2 at the sewage outlet 122B1. The specific reference for the inlet of the sewage channel T2 communicating with the cavity S1 is Figure 2 as shown.

[0045] When the filter element assembly is performing the filtering work, the sewage outlet 122B1 is closed and the water outlet 122A1 is opened. The raw water entering the cavity S1 from the water inlet 122D1 will pass through the clean water channel T1 and then be discharged from the water outlet 122A1 (refer to the clean water water path L1). At this time, the water discharged from the water outlet 122A1 is the filtered clean water.

[0046] When the filter element assembly is performing the sewage discharge work, the water outlet 122A1 is closed and the sewage outlet 122B1 is opened. The clean water entering the cavity S1 from the water inlet 122D1 will pass through the sewage channel T2 and then be discharged from the sewage outlet (refer to the sewage discharge water path L2). At this time, the water discharged from the sewage outlet 122B1 carries the dirt filtered and remaining in the cavity S1.

[0047] Through the above structure, when the above-mentioned filter element assembly is performing the sewage discharge work or the filtering work, it passes through the corresponding independent water paths and is realized through the corresponding sewage outlet 122B1 or water outlet 122A1. Therefore, compared with the traditional filter element assembly, the above-mentioned filter element assembly has improved hygienic safety, so it can meet the higher hygienic safety requirements of some users.

[0048] In this embodiment, refer to Figure 3 , the sewage channel T2 and the clean water channel T1 are arranged inside and outside.

[0049] The filter medium assembly 200 includes a first connecting member 210, a second connecting member 220, and a filter medium member 230.

[0050] Referring to Figure 3 and Figure 5 , the first connecting member 210 is connected to the housing member 100. The first connecting member 210 has a hollow structure. The inner cavity of the first connecting member 210 includes a first cavity section 211 and a second cavity section 212 arranged vertically. The second connecting member 220 is connected to the housing member 100. The second connecting member 220 has a hollow structure. The inner cavity 221 of the second connecting member 220 communicates with the sewage outlet 122B1. The second connecting member 220 passes through the first connecting member 210. A first space S2 is provided between the second connecting member 220 and the cavity side wall of the first cavity section 211. The first space S2 communicates with the water outlet 122A1. The filter medium member 230 passes through the second cavity section 212 and is sleeved on the second connecting member 220. A second space S3 is provided between the filter medium member 230 and the cavity bottom wall of the second cavity section 212. The filter medium member 230 is provided with a vertically arranged first channel 231 and a second channel 232 that communicate with the cavity S1. The inlet of the first channel 231 communicating with the cavity S1 is smaller than the inlet of the second channel 232 communicating with the cavity S1. Among them, the first channel 231, the second space S3, and the first space S2 are sequentially connected to form a clean water channel T1. The second channel 232 and the inner cavity 221 of the second connecting member 220 are sequentially connected to form a sewage channel T2.

[0051] It can be understood that the inlet of the first channel 231 communicating with the cavity S1, that is, the inlet of the clean water channel T1 communicating with the cavity S1, specifically refer to Figure 8 shown; the inlet of the second channel 232 communicating with the cavity S1, that is, the inlet of the sewage channel T2 communicating with the cavity S1, specifically refer to Figure 2 shown.

[0052] In this embodiment, referring to Figure 3 , the first channel 231 is set to at least three. The second channel 232 and the first channel 231 are arranged inside and outside. The inlet of the first channel 231 communicating with the cavity S1 and the inlet of the second channel 232 communicating with the cavity S1 are both provided at the cavity bottom of the cavity S1.

[0053] In some embodiments, the first connecting member 210, the second connecting member 220, and the filter medium member 230 are of an integrally formed structure.

[0054] The housing member 100 includes a housing body member 110 and a housing cover assembly 120.

[0055] Referring to Figures 1 to 3, the housing body member 110 is provided with an inner cavity, the inner cavity of the housing body member 110 has an upwardly disposed opening, the housing cover assembly 120 is connected to the housing body member 110, and the housing cover assembly 120 closes the opening to enclose the inner cavity of the housing body member 110 into the above-mentioned cavity S1. The housing cover assembly 120 is provided with a water inlet 122D1, a water outlet 122A1, and a sewage outlet 122B1. Both the first connecting member 210 and the second connecting member 220 are connected to the housing cover assembly 120.

[0056] In this embodiment, referring to Figures 1 to 3 , the housing cover assembly 120 is detachably connected to the housing body member 110, and the filter element member 230 is threadedly connected to the second cavity section 212.

[0057] With the above structure, the user can detach the housing cover assembly 120 from the housing body member 110 and then remove the filter element member 230, so as to facilitate the replacement work of the filter element member 230.

[0058] The housing cover assembly 120 includes a first housing cover 121 and a second housing cover 122.

[0059] Referring to Figure 3 , the first housing cover 121 is detachably connected to the housing body member 110, the first housing cover 121 closes the opening to enclose the inner cavity of the housing body member 110 into the cavity S1, the first housing cover 121 is provided with an avoidance hole 121A communicating with the cavity S1, the second housing cover 122 is connected to the first housing cover 121, the second housing cover 122 and the first housing cover 121 are arranged up and down, the second housing cover 122 is provided with the above-mentioned water inlet 122D1, the above-mentioned water outlet 122A1, and the above-mentioned sewage outlet 122B1, and both the first connecting member 210 and the second connecting member 220 are connected to the second housing cover 122 through the avoidance hole 121A.

[0060] The second housing cover 122 is provided with the above-mentioned water inlet 122D1, the above-mentioned water outlet 122A1, and the above-mentioned sewage outlet 122B1, and both the first connecting member 210 and the second connecting member 220 are connected to the second housing cover 122 through the avoidance hole 121A. Specifically, referring to Figure 3The second housing cover 122 is provided with a third channel 122A, a fourth channel 122B, and a fifth channel 122D. The fifth channel 122D is provided with the water inlet 122D1 mentioned above. The first housing cover 121 is inserted through the fifth channel 122D. The fifth channel 122D communicates with the cavity S1 through the avoidance hole 121A to form a water inlet waterway L3. The third channel 122A is provided with the water outlet 122A1 mentioned above. Both the first connecting member 210 and the second housing member 122 are inserted through the avoidance hole 121A. The first connecting member 210 is inserted through the third channel 122A. The first space S2 communicates with the water outlet 122A1 through the third channel 122A. The fourth channel 122B is provided with the sewage outlet 122B1 mentioned above. Both the second connecting member 220 and the second housing member 122 are inserted through the avoidance hole 121A. The second connecting member 220 is inserted through the fourth channel 122B. The inner cavity 221 of the second connecting member 220 communicates with the sewage outlet 122B1 through the fourth channel 122B.

[0061] It can be understood that the first space S2 communicates with the water outlet 122A1. Specifically, the first space S2 communicates with the water outlet 122A1 through the third channel 122A; the inner cavity 221 of the second connecting member 220 communicates with the sewage outlet 122B1. Specifically, the inner cavity 221 of the second connecting member 220 communicates with the sewage outlet 122B1 through the fourth channel 122B.

[0062] The first housing cover 121 is detachably connected to the housing body member 110. Specifically, referring to Figure 5 The first housing cover 121 is sleeved on the housing body member 110 and is threadedly connected to the housing body member 110.

[0063] In this embodiment, referring to Figures 5 to 7 The housing body member 110 is provided with a notch 111. The first housing cover 121 is rotatably connected with a swing block 121B. The swing block 121B is arranged in the notch 111 to be able to limit the relative rotation of the housing body member 110 and the first housing cover 121, and further to be able to prevent the housing body member 110 from being disengaged from the first housing cover 121 due to accidental rotation.

[0064] It can be understood that when it is necessary to detach the housing body member 110 and the first housing cover 121, the user needs to first drive the swing block 121B to swing out of the notch 111 before driving the housing body member 110 and the first housing cover 121 to rotate relative to each other to detach the two.

[0065] In this embodiment, referring to Figure 6 and Figure 7 The swing block 121B is provided with a positioning block 121B1. The edge of the notch 111 is provided with a positioning groove 111A. When the swing block 121B is arranged in the notch 111, the positioning block 121B1 is arranged in the positioning groove 111A to limit the swing block 121B from swinging out of the notch 111A.

[0066] It can be understood that when the user drives the swing block 121B to swing out of the notch 111, the positioning block 121B1 will also swing out of the positioning groove 111A along with the swing of the swing block 121B.

[0067] In this embodiment, referring to Figures 1 to 3 , a panel member 300 is clamped between the first housing cover 121 and the second housing cover 122.

[0068] With the above structure, the setting of the panel member 300 facilitates the installation of the filter element assembly on the wall surface.

[0069] In this embodiment, in order to detect the pressure inside the filter element assembly, referring to Figure 1 , the second housing cover 122 is provided with a connecting pipe portion 122C. The inner cavity of the connecting pipe portion 122C is communicated with the third channel 122A, and the connecting pipe portion 122C is connected with a pressure detecting member located outside.

[0070] In some embodiments, the inner cavity of the connecting pipe portion 122C is communicated with the fifth channel 122D.

[0071] The present utility model also proposes a filtering system, which includes the above-mentioned filter element assembly. With the above structure, the hygienic safety can be improved to meet the higher hygienic safety requirements of some users.

[0072] Of course, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A filter element assembly, characterized in that: include The shell (100) is provided with a cavity (S1), a water inlet (122D1), a water outlet (122A1) and a sewage outlet (122B1), wherein the water inlet (122D1) is in communication with the cavity (S1); A filter material assembly (200) is arranged in the cavity (S1), the filter material assembly (200) is provided with a water purification channel (T1) and a sewage discharge channel (T2), the filter material assembly (200) is connected to the shell (100), the water purification channel (T1) is in communication with the cavity (S1) and the water outlet (122A1), the sewage discharge channel (T2) is in communication with the cavity (S1) and the sewage outlet (122B1), and the inlet of the water purification channel (T1) in communication with the cavity (S1) is smaller than the inlet of the sewage discharge channel (T2) in communication with the cavity (S1).

2. A filter element assembly according to claim 1, characterized in that: The filter material assembly (200) comprises: A first connecting member (210) connected to the shell member (100), the first connecting member (210) being a hollow structure, the inner cavity of the first connecting member (210) comprising a first cavity section (211) and a second cavity section (212) arranged vertically; a second connecting member (220) connected to the shell member (100); the second connecting member (220) is a hollow structure; the inner cavity (221) of the second connecting member (220) is in communication with the sewage outlet (122B1); the second connecting member (220) is disposed through the first connecting member (210); a first space (S2) is provided between the second connecting member (220) and the side wall of the first cavity section (211); and the first space (S2) is in communication with the water outlet (122A1); A filter material (230) is inserted into the second cavity section (212) and sleeved on the second connecting member (220); a second space (S3) is provided between the filter material (230) and the cavity bottom wall of the second cavity section (212); the filter material (230) is provided with a first channel (231) and a second channel (232) communicating with the cavity (S1); the first channel (231) communicating with the inlet of the cavity (S1) is smaller than the second channel (232) communicating with the inlet of the cavity (S1); wherein: The first channel (231), the second space (S3) and the first space (S2) are sequentially connected to form the clean water channel (T1). The second channel (232) and the inner cavity (221) of the second connecting piece (220) are connected in sequence to form the sewage discharge channel (T2).

3. A filter element assembly according to claim 2, characterized in that: The shell (100) is provided with a third channel (122A) and a fourth channel (122B); the third channel (122A) is provided with the water outlet (122A1); the first connecting member (210) is provided through the third channel (122A); the first space (S2) is communicated with the water outlet (122A1) through the third channel (122A); the fourth channel (122B) is provided with the sewage outlet (122B1); the second connecting member (220) is provided through the fourth channel (122B); the inner cavity (221) of the second connecting member (220) is communicated with the sewage outlet (122B1) through the fourth channel (122B).

4. A filter element assembly according to claim 3, characterized in that: The shell (100) is provided with a connecting pipe portion (122C), the inner cavity of the connecting pipe portion (122C) is communicated with the third channel (122A), and the connecting pipe portion (122C) is connected to a pressure detection component located outside.

5. A filter element assembly according to claim 2, characterized in that: The shell (100) comprises: The shell body (110) is provided with an inner cavity, wherein the inner cavity of the shell body (110) has an opening arranged upward; A shell cover assembly (120) is connected to the shell body (110), and the shell cover assembly (120) closes the opening to enclose the inner cavity of the shell body (110) into the containing cavity (S1). The shell cover assembly (120) is provided with the water inlet (122D1), the water outlet (122A1) and the sewage outlet (122B1), and the first connecting member (210) and the second connecting member (220) are both connected to the shell cover assembly (120).

6. A filter element assembly according to claim 5, characterized in that: The shell cover component (120) is detachably connected to the shell body (110), and the filter material component (230) is detachably inserted into the second cavity section (212).

7. A filter element assembly according to claim 5, characterized in that: The housing cover assembly (120) comprises: A first shell cover (121) connected to the shell body (110), the first shell cover (121) closing the opening to enclose the inner cavity of the shell body (110) to form the containing cavity (S1), and the first shell cover (121) is provided with an avoidance hole (121A) communicating with the containing cavity (S1); The second shell cover (122) is connected to the first shell cover (121); the second shell cover (122) and the first shell cover (121) are arranged up and down; the second shell cover (122) is provided with the water inlet (122D1), the water outlet (122A1) and the sewage outlet (122B1); the first connecting member (210) and the second connecting member (220) are both connected to the second shell cover (122) via the avoidance hole (121A).

8. A filter element assembly according to claim 7, characterized in that: The first shell cover (121) and the second shell cover (122) are provided with a panel member (300) therebetween.

9. A filter element assembly according to claim 1, characterized in that: The sewage discharge channel (T2) and the water purification channel (T1) are arranged inside and outside.

10. Filtration system, characterized in that: It comprises a filter element assembly as described in any one of claims 1-9.

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