Filter element assembly and filter system

Abstract

The utility model discloses a filter element assembly and a filter system, the filter element assembly comprises: a housing assembly, one end of which is provided with a connecting channel and the other end of which is provided with a pipeline joint; the pipeline framework is arranged in the shell assembly, the first end of the pipeline framework is connected with one end of the shell assembly, the second end of the pipeline framework is connected with the pipeline connector, and a first cavity is formed between the pipeline framework and the shell assembly; a first sub-cavity is formed between the first filter material and the shell assembly, and a second sub-cavity is formed between the first filter material and the pipeline framework; the pipeline framework is integrally formed and provided with a first flow channel and a second flow channel, the connecting channel communicates with the first flow channel and the first sub-cavity, and the second flow channel communicates with the second sub-cavity and the pipeline connector. According to the filter element assembly disclosed by the embodiment of the utility model, a fluid flow path in the filter element assembly is simplified, so that the flow filtered by the filter element assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a filter element component and a filtering system. Background Art

[0002] Filter element integration is the development trend of water purifiers, which can reduce the size of the water purifier and reduce the frequency of filter replacement by users. In the related technology, the pre-filter element assembly and the post-filter element assembly of the water purifier are separately arranged to achieve the same or different filtering functions. When the user replaces the filter element assembly, it is necessary to replace both filter element assemblies at the same time, which is a more complicated operation. The pre-filter element assembly and the post-filter element assembly are integrated into one filter element assembly. When replacing the pre-filter and post-filter elements, only one filter element assembly needs to be replaced, which can reduce the size of the water purifier. In the existing technology of combining the pre-filter and post-filter elements up and down, multiple components are usually required to isolate the flow path. Utility Model Content

[0003] One purpose of the utility model is to provide a filter element assembly.

[0004] Another object of the present invention is to provide a filtering system.

[0005] According to the filter element assembly of the embodiment of the utility model, it includes: a shell assembly, one end of the shell assembly is provided with a connecting channel, and the other end is provided with a pipe joint; a pipe skeleton, the pipe skeleton is arranged in the shell assembly, the first end of the pipe skeleton is connected to the one end of the shell assembly, and the second end of the pipe skeleton is connected to the pipe joint, and a first cavity is provided between the pipe skeleton and the shell assembly; a first filter material, the first filter material is arranged in the first cavity and surrounds the pipe skeleton, a first sub-cavity is provided between the first filter material and the shell assembly, and a second sub-cavity is provided between the first filter material and the pipe skeleton; wherein the pipe skeleton is integrally formed and has a first flow channel and a second flow channel, the connecting channel connects the first flow channel and the first sub-cavity, and the second flow channel connects the second sub-cavity and the pipe joint.

[0006] According to the filter element assembly of the embodiment of the utility model, the pipeline skeleton is used to guide the fluid flow so that the fluid can be filtered through the first filter material, simplifying the fluid flow path in the filter element assembly, thereby increasing the flow rate filtered by the filter element assembly and optimizing the filtering effect of the filter element assembly. The utility model optimizes the design of the internal composite structure of the filter element assembly, optimizes the cost and manufacturability, and improves reliability.

[0007] In addition, the filter element assembly according to the above embodiment of the utility model may also have the following additional technical features:

[0008] In some embodiments, the first end of the pipeline skeleton is connected to the housing assembly and is provided with a first interface connected to the first flow channel, and the connecting channel is connected to the first interface and the first sub-cavity.

[0009] In some embodiments, the first interface is disposed on an end surface of a first end of the pipeline skeleton.

[0010] In some embodiments, the housing assembly includes a first end cover, the first end cover includes a first tube portion, the first tube portion extends along the axis of the pipeline skeleton and passes through the first interface, and the first tube portion connects the first flow channel and the connecting channel.

[0011] In some embodiments, the outer shell assembly further includes an inner cylinder, the first end cover is disposed on the inner cylinder, the first end cover further includes a first plate portion, the first plate portion is connected to the first tube portion, and the connecting channel is disposed between the first plate portion and the end wall of the inner cylinder.

[0012] In some embodiments, the filter element assembly further includes a flange bracket, the flange bracket is connected to the inner tube, the first cavity is located between the flange bracket and the inner tube, the pipeline skeleton is passed through the flange bracket, and the first filter material is positioned between the first end cover and the flange bracket.

[0013] In some embodiments, the pipeline skeleton includes an axially distributed main body and a first joint, the first joint is connected to the first end of the main body, a fourth interface is formed between the main body and the first joint, and the fourth interface is arranged in the first cavity and connects the second sub-cavity and the second flow channel.

[0014] In some embodiments, a second cavity is provided between the pipeline skeleton and the outer shell assembly, the second cavity and the first cavity are distributed along the pipeline skeleton, the filter element assembly also includes a second filter material, the second filter material is arranged in the second cavity, a third sub-cavity is provided between the second filter material and the outer shell assembly, and a fourth sub-cavity is provided between the second filter material and the pipeline skeleton.

[0015] In some embodiments, the second end of the pipeline skeleton is provided with a second interface connected to the second flow channel and a third interface connected to the first flow channel, the shell assembly is provided with a fifth interface connected to the second interface, a sixth interface connected to the third sub-cavity, a seventh interface connected to the fourth sub-cavity and / or an eighth interface connected to the third interface, the second interface is provided on the end face of the second end of the pipeline skeleton, and the third interface is provided on the peripheral surface of the second end of the pipeline skeleton.

[0016] In some embodiments, the pipe joint includes a first positioning rib, the second end of the pipe skeleton is passed through the first positioning rib, and the fifth interface and the second interface are connected to the inner space of the first positioning rib.

[0017] In some embodiments, the pipeline joint further includes a second positioning rib, the second positioning rib surrounds the first positioning rib, the pipeline skeleton includes a main body portion and a second joint distributed along the axial direction, the second joint is connected to the second end of the main body portion, the second interface is provided at the second joint, and the third interface is provided between the main body portion and the second joint.

[0018] In some embodiments, the second connector is passed through the first positioning rib, the second end of the main body is passed through the second positioning rib, and the third interface and the eighth interface communicate with the space between the first positioning rib and the second positioning rib.

[0019] In some embodiments, the pipe joint further includes a third positioning rib, the third positioning rib surrounds the second positioning rib, and the fourth sub-cavity and the seventh interface communicate with the space between the third positioning rib and the second positioning rib.

[0020] In some embodiments, the housing assembly further includes a shell, the third positioning rib is disposed on an inner side of the shell, and the sixth interface and the third sub-cavity are connected to the space between the third positioning rib and the shell.

[0021] In some embodiments, the filter element assembly further includes a flange bracket, the flange bracket is arranged on the housing assembly, the pipeline skeleton is passed through the flange bracket, and the first cavity and the second cavity are respectively arranged on both sides of the flange bracket.

[0022] In some embodiments, the flange bracket and the pipeline skeleton are integrally formed.

[0023] In some embodiments, the housing assembly further includes a second end cover, the second end cover and the flange bracket are distributed along the axial direction of the pipeline skeleton, and the second filter material is positioned between the second end cover and the flange bracket.

[0024] In some embodiments, the end surface of the first end of the pipeline skeleton is provided with a first interface connected to the first flow channel; or, the peripheral surface of the second end of the pipeline skeleton is provided with a third interface connected to the first flow channel; or, the end surface of the second end of the pipeline skeleton is provided with a second interface connected to the second flow channel; or, the peripheral surface of the first end of the pipeline skeleton is provided with a fourth interface connected to the second flow channel.

[0025] In some embodiments, the pipeline skeleton includes a first joint, a main body and a second joint distributed along the axial direction, the first joint is connected to the first end of the main body, the second joint is connected to the second end of the main body, the first flow channel is arranged between the first joint and the main body, and the second flow channel is arranged between the second joint and the main body.

[0026] In some embodiments, the end surface of the first joint is provided with a first interface connected to the first flow channel, and the end surface of the second joint is provided with a second interface connected to the second flow channel; a third interface connected to the first flow channel is provided between the second joint and the main body, and a fourth interface connected to the second flow channel is provided between the first joint and the main body.

[0027] In some embodiments, the first flow channel and the second flow channel extend in a straight direction; or, at least a portion of the inner circumference of the first flow channel is configured as a slope that gradually expands outward in the direction from the second end to the first end of the main body; or, at least a portion of the inner circumference of the second flow channel is configured as a slope that gradually expands outward in the direction from the first end to the second end of the main body.

[0028] In some embodiments, the main body includes a first side wall, a middle wall, and a second side wall, the first side wall is connected to the middle wall to form the first flow channel, and the second side wall is connected to the middle wall to form the second flow channel.

[0029] The filtering system according to the embodiment of the utility model includes the aforementioned filter element assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a cross-sectional view of a filter element assembly according to an embodiment of the utility model.

[0031] Figure 2 It is a partial schematic diagram of a cross-sectional view of a filter element assembly of an embodiment of the utility model.

[0032] Figure 3 It is another partial schematic diagram of a cross-sectional view of a filter element assembly according to an embodiment of the utility model.

[0033] Figure 4 It is a cross-sectional view of a filter element assembly according to an embodiment of the utility model, wherein no filter material is included.

[0034] Figure 5 It is a cross-sectional view of a housing assembly of a filter element assembly according to an embodiment of the utility model.

[0035] Figure 6 It is a cross-sectional view of a pipeline skeleton and a flange bracket of a filter element assembly according to an embodiment of the utility model.

[0036] Figure 7 It is a cross-sectional view of a pipeline skeleton of a filter element assembly according to an embodiment of the utility model.

[0037] Figure numerals: filter element assembly 100, housing assembly 10, first cavity 101, first sub-cavity 102, second sub-cavity 103, second cavity 104, third sub-cavity 105, fourth sub-cavity 106, connecting channel 107, shell 11, pipeline joint 12, first positioning rib 121, second positioning rib 122, third positioning rib 123, cover plate 13, inner tube 14, first end cover 15, first pipe part 151, first plate part 152, second end cover 16, second pipe part 161, second plate part 162, flange bracket 20, pipeline skeleton 30, first flow channel 301, second flow channel 302, first interface 303, second interface 304, third interface 305, fourth interface 306, first joint 31, second joint 32, main body 33, first side wall 341, second side wall 342, middle wall 343, first filter material 41, second filter material 42. DETAILED DESCRIPTION

[0038] The utility model integrates the first flow channel and the second flow channel into the same component (integrated skeleton), which can simplify the components of the composite filter element and increase the fillable space of the filter material. The utility model provides a flow channel of a composite filter element to simplify the components of the composite filter element to achieve the aforementioned simplified integration, while allowing the filter material to have a larger filling space, the filter element has a better filtering effect, and the cost is optimized. A flow channel of a composite filter element.

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] like Figures 1 to 7 According to the filter element assembly 100 of the embodiment of the utility model, it includes: a housing assembly 10, a pipeline skeleton 30 and a first filter material 41. The housing assembly 10 can provide support or accommodation space for other components of the filter element assembly 100. The housing assembly 10 can have a water inlet and a water outlet. The water to be filtered can enter the housing assembly 10 through the water inlet, and after being filtered by the filter element assembly 100, it is sent out from the water outlet. The pipeline skeleton 30 can provide guidance for the water flowing in the housing assembly 10, and the first filter material 41 can filter the fluid flowing through the housing assembly 10.

[0041] Specifically, a connecting channel 107 is provided at one end of the shell component 10, and a pipe connector 12 is provided at the other end. The pipe skeleton 30 is arranged in the shell component 10, the first end of the pipe skeleton is connected to the one end of the shell component, and the second end of the pipe skeleton is connected to the pipe connector. A first cavity 101 is provided between the pipe skeleton 30 and the shell component 10, the first filter material 41 is provided in the first cavity 101 and surrounds the pipe skeleton 30, a first sub-cavity 102 is provided between the first filter material 41 and the shell component 10, and a second sub-cavity 103 is provided between the first filter material 41 and the pipe skeleton 30; wherein, the pipe skeleton 30 has a first flow channel 301 and a second flow channel 302, the connecting channel 107 connects the first flow channel 301 and the first sub-cavity 102, and the second flow channel 302 connects the second sub-cavity 103 and the pipe connector 12. After the fluid enters the housing assembly 10, it can flow along the first flow channel 301, the connecting channel 107, the first sub-cavity 102, the first filter material 41, the second sub-cavity 103 and the second flow channel 302; or flow along the second flow channel 302, the second sub-cavity 103, the first filter material 41, the first sub-cavity 102, the connecting channel 107 and the first flow channel 301. During the flow of the fluid in the housing assembly 10, the first filter material 41 can be used to filter the fluid. The pipeline skeleton 30 can be set to be integrally formed.

[0042] According to the filter element assembly 100 of the embodiment of the utility model, the pipeline skeleton 30 is used to guide the fluid flow so that the fluid can be filtered through the first filter material 41, simplifying the fluid flow path in the filter element assembly 100, thereby increasing the flow rate filtered by the filter element assembly 100 and optimizing the filtering effect of the filter element assembly 100. The utility model optimizes the design of the internal composite structure of the filter element assembly 100, optimizes the cost and manufacturability, and improves reliability.

[0043] Combination Figures 1 to 7 In some embodiments, the first end of the pipeline skeleton 30 is connected to the housing assembly 10, and the first end of the pipeline skeleton 30 is provided with a first interface 303 connected to the first flow channel 301, and the connecting channel 107 connects the first interface 303 and the first sub-cavity 102. The first interface 303 is provided at the end of the pipeline skeleton 30, which can facilitate the first flow channel 301 to connect to the connecting channel 107, so as to facilitate the use of the first filter material to filter water, optimize the water channel structure, and improve the filtering effect.

[0044] The first interface 303 may be provided on the end surface of the first end of the pipeline skeleton 30 , so as to facilitate the first flow channel 301 to communicate with the connection channel 107 , simplify the connection structure of the filter element assembly, and facilitate the molding of the pipeline skeleton 30 .

[0045] like Figure 1 , Figure 3 and Figure 4The housing assembly 10 further includes a first end cap 15, which includes a first pipe portion 151, wherein a first interface 303 may be provided at the end of the pipeline skeleton 30, the first pipe portion 151 extends along the axis of the pipeline skeleton 30, and the first pipe portion 151 is passed through the first interface 303, and the first pipe portion 151 communicates with the first flow channel 301 and the connecting channel 107. The first interface 303 is provided at the end of the pipeline skeleton 30, and the first pipe portion 151 is provided to be plugged with the first interface 303, which can facilitate the connection between the connecting channel 107 and the first flow channel 301, facilitate the connection between the housing assembly 10 and the pipeline skeleton 30, and optimize the positioning stability of the pipeline skeleton 30.

[0046] like Figure 1 and Figure 3 In some embodiments, the housing assembly 10 further includes an inner cylinder 14, the pipeline skeleton 30 extends into the inner cylinder 14, the first end cover 15 is disposed in the inner cylinder 14, and the first end cover 15 further includes a first plate portion 152, the first plate portion 152 is connected to the first pipe portion 151, and a connecting channel is disposed between the first plate portion 152 and the end wall of the inner cylinder 14. By providing the first plate portion 152, it is convenient to construct a connecting channel 107 between the inner cylinder 14, so as to facilitate the connection between the first flow channel 301 and the first cavity 101, simplifying the structure of the housing assembly 10, and facilitating the processing, assembly and maintenance of the filter element assembly 100.

[0047] like Figure 1 and Figure 4 The filter element assembly 100 further includes a flange bracket 20, which can be arranged on the housing assembly 10, the flange bracket 20 is connected to the inner cylinder 14, the inner cylinder 14 is covered by the flange bracket 20, the first cavity 101 is located between the flange bracket 20 and the inner cylinder 14, and the pipeline skeleton 30 is penetrated by the flange bracket 20. The connecting channel 107 is arranged at the end of the first cavity 101 away from the flange bracket 20, and the pipeline skeleton 30 can be connected to the flange bracket 20, so that the flange bracket 20 is used to position the pipeline skeleton 30, the positioning of the pipeline skeleton 30 is achieved, the stability of the pipeline skeleton 30 is improved, the water flow in the filter element assembly 100 is facilitated, and the filtering effect and filtering efficiency are optimized. The first cavity 101 is constructed by using the flange bracket 20, which can optimize the structure of the filter element assembly 100 and facilitate the circulation and filtration of water in the filter element assembly 100. The flange bracket 20 can be arranged to be perpendicular to the pipeline skeleton 30 , and the flange bracket 20 can be integrally formed with the pipeline skeleton 30 . Of course, the flange bracket 20 can also be arranged as a separate structure with the pipeline skeleton 30 .

[0048] Among them, Figure 1, the first filter material 41 is positioned between the first end cover and the flange bracket 20. In combination with the foregoing, the first plate portion 152 may be provided with a first positioning portion, and the flange bracket 20 may be provided with a second positioning portion, the first positioning portion and the second positioning portion are opposite to each other along the axial direction of the pipeline skeleton 30, and position the first filter material 41. Among them, the first positioning portion may include a first positioning groove, and the second positioning portion may include a second positioning groove, wherein the first positioning groove is configured to surround the pipeline skeleton 30 and open toward the second positioning portion, and the second positioning groove may be configured to surround the pipeline skeleton 30 and open toward the first positioning portion, and one end of the first filter material 41 along the axial direction may be positioned in the first positioning groove, and the other end may be positioned in the second positioning groove, so that the first filter material 41 can be positioned by the first positioning portion and the second positioning portion.

[0049] Optionally, the first positioning portion may include a first positioning structure and a second positioning structure, the first positioning structure surrounds the pipeline skeleton 30, the second positioning structure surrounds the first positioning structure, wherein the first positioning groove is located between the first positioning structure and the second positioning structure; the second positioning portion may include a third positioning structure and a fourth positioning structure, the third positioning structure surrounds the pipeline skeleton 30, the fourth positioning structure surrounds the third positioning structure, wherein the second positioning groove is located between the third positioning structure and the fourth positioning structure. Any of the aforementioned first positioning structure, second positioning structure, third positioning structure and fourth positioning structure may be set as an annular rib, a boss or a plurality of protrusions arranged at circumferential intervals.

[0050] Among them, the pipeline skeleton 30 may include a main body 33 and a first joint 31 distributed along the axial direction, the first joint 31 is connected to the first end of the main body 33, and a fourth interface 306 is formed between the main body 33 and the first joint 31. The fourth interface 306 is arranged in the first cavity 101, and the fourth interface 306 connects the second sub-cavity 102 and the second flow channel 302.

[0051] The first end of the pipeline skeleton 30 is connected to the housing assembly 10, so that the housing assembly 10 and the flange bracket 20 are used to position the pipeline skeleton 30, and the first end of the pipeline skeleton 30 is provided with a first interface 303 connected to the first flow channel 301, and the connecting channel 107 connects the first interface 303 and the first sub-cavity 102. The connecting channel 107 can be connected through the end of the pipeline skeleton 30, which facilitates the connection between the pipeline skeleton 30 and the housing assembly 10, and improves the assembly efficiency and structural stability of the filter element assembly 100. In addition, the first interface 303 is provided at the end of the pipeline skeleton 30, which can facilitate the molding of the pipeline skeleton 30 and improve the molding efficiency of the pipeline skeleton 30.

[0052] In addition, the filter element assembly 100 in the present invention may include the aforementioned first cavity 101 , which may be filtered using the first filter material 41 , and may also be provided with a second cavity 104 , which may be filtered using the second filter material 42 .

[0053] like Figures 1 to 7 In some embodiments, a second cavity 104 is further provided between the pipeline fixture 30 and the housing assembly 10, and the second cavity 104 and the first cavity 101 are distributed along the pipeline skeleton. The filter element assembly 100 further includes a second filter material 42, which is provided in the second cavity 104. A third sub-cavity 105 is provided between the second filter material 42 and the housing assembly 10, and a fourth sub-cavity 106 is provided between the second filter material 42 and the pipeline skeleton 30. After the fluid enters the housing assembly 10, it can be filtered for the first time along the third sub-cavity 105, the second filter material 42 and the fourth sub-cavity 106, and can be filtered for the second time along the first flow channel 301, the connecting channel 107, the first sub-cavity 102, the first filter material 41, the second sub-cavity 103 and the second flow channel 302. The water flowing into the housing assembly 10 can be filtered by the first filter material 41 and the second filter material 42 and then discharged. Optionally, the filter material for the second filtration can be set as a reverse osmosis filtration structure, and a pressure pump can be set between the fourth sub-chamber 106 and the first flow channel 301 for pressurization. Of course, the second filtration can also be set as other filtration structures. The pipeline skeleton 30 is used to guide the fluid flow so that the fluid can be filtered through the first filter material 41 and the second filter material 42 to achieve multi-stage filtration of water, and the multi-stage filtration filter material is integrated into the filter element assembly 100, which can simplify the fluid flow path in the filter element assembly 100, thereby increasing the flow filtered by the filter element assembly 100 and optimizing the filtration effect of the filter element assembly 100.

[0054] Among them, the second end of the pipeline skeleton 30 is connected to the shell component 10, and the second end of the pipeline skeleton 30 is provided with a second interface 304 connected to the second flow channel 302, and the second end of the pipeline skeleton 30 is also provided with a third interface 305 connected to the first flow channel 301. In addition, the shell component 10 is provided with a fifth interface connected to the second interface 304, a sixth interface connected to the third sub-cavity, a seventh interface connected to the fourth sub-cavity and / or an eighth interface connected to the third interface. Water can flow into and out of the filter element assembly through the fifth interface and the sixth interface, and flow between the fifth interface and the sixth interface along the aforementioned filter flow channel, thereby filtering the water flow. The second interface 304 is arranged at the end of the pipeline skeleton 30, which can facilitate the connection of the second flow channel 302 to the fifth interface, so as to filter the water using the first filter material and the second filter material, optimize the water channel structure, and improve the filtering effect.

[0055] The second interface 304 can be provided on the end surface of the second end of the pipeline skeleton 30. This can simplify the connection structure of the filter element assembly and facilitate the molding of the pipeline skeleton 30. In addition, the third interface is provided on the peripheral surface of the second end of the pipeline skeleton.

[0056] like Figures 1 to 4The housing assembly 10 includes a first positioning rib 121, the second end of the pipeline skeleton 30 is passed through the first positioning rib 121, and the fifth interface and the second interface are connected to the inner space of the first positioning rib 121. The first positioning rib 121 can be used to position the second end of the pipeline skeleton 30, and the second interface 304 can be separated from other interfaces, so as to facilitate filtering of water, avoid mixing of filtered water with unfiltered water, and optimize the filtering effect.

[0057] like Figures 1 to 4 The housing assembly 10 further includes a second positioning rib 122, which surrounds the first positioning rib 121. The pipeline skeleton 30 includes a main body 33 and a second joint 32 distributed along the axial direction. The second joint 32 is connected to the second end of the main body 33. The second interface 304 is provided at the second joint 32. The third interface is provided between the main body and the second joint. The second joint 32 is provided through the first positioning rib 121. The second end of the main body 33 is provided through the second positioning rib 122. A third interface 305 connected to the first flow channel 301 is formed between the main body 33 and the second joint 32, and the third interface 305 and the eighth interface are connected to the space between the first positioning rib 121 and the second positioning rib 122. The first positioning rib 121 and the second positioning rib 122 can be used to position the pipeline skeleton 30, and the isolation of the water flow before and after filtration can be achieved to optimize the filtration effect. In addition, the circumferential distribution of the main body 33 and the second joint 32 facilitates the formation of the third interface 305 and facilitates the access of the third interface 305 to the water filtered by the first filter material.

[0058] like Figures 1 to 4 The housing assembly 10 further includes a third positioning rib 123, the third positioning rib 123 surrounds the second positioning rib 122, and the fourth sub-cavity 106 and the seventh interface communicate with the space between the third positioning rib 123 and the second positioning rib 122. The filtering effect can be further optimized.

[0059] like Figures 1 to 4 The housing assembly 10 further includes a housing 11 , a third positioning rib 123 is disposed inside the housing 11 , and the sixth interface and the third sub-cavity 105 communicate with the space between the third positioning rib 123 and the housing 11 .

[0060] The filter element assembly 100 further includes a flange bracket 20, which is disposed on the housing assembly 10, the pipeline skeleton 30 is passed through the flange bracket 20, and the first chamber 101 and the second chamber 104 are respectively disposed on both sides of the flange bracket 20. Specifically, the first chamber 101 is disposed on one side of the flange bracket 20, and with reference to the accompanying drawings, the first chamber 101 is disposed on the lower side of the flange bracket 20; the second chamber 104 is disposed on the other side of the flange bracket 20, and with reference to the accompanying drawings, the second chamber 104 is disposed on the upper side of the flange bracket 20. The first chamber 101 and the second chamber 104 can be separated by the flange bracket 20 to form a closed chamber, thereby improving the filtering effect and the purity of the filtered water.

[0061] In addition, both ends of the pipeline skeleton 30 can be positioned by the housing assembly 10 , and a first cavity 101 is formed between the pipeline skeleton 30 and the housing assembly 10 ; the pipeline skeleton 30 can also be positioned by providing a flange bracket 20 .

[0062] In the present invention, the flange bracket 20 and the pipeline skeleton 30 can be integrally formed or separately formed; in addition, the pipeline skeleton 30 can also be set as an integrally formed structure.

[0063] like Figure 1 , Figure 2 , Figure 4 and Figure 5 In some embodiments, the housing assembly 10 further includes a second end cap 16, and the second end cap 16 and the flange bracket 20 can be arranged to be distributed along the axial direction of the pipeline skeleton 30, and the second filter material 42 is positioned between the second end cap and the flange bracket 20. The second end cap 16 can be provided with a third positioning portion, and the flange bracket 20 is provided with a fourth positioning portion, and the third positioning portion and the fourth positioning portion are opposite to each other along the axial direction of the pipeline skeleton 30, and position the second filter material 42. By providing the second end cap, the second filter material 42 can be positioned by utilizing the cooperation between the second end cap and the flange bracket 20.

[0064] The second end cover is provided with a third positioning portion, the flange bracket 20 is provided with a fourth positioning portion, the third positioning portion and the fourth positioning portion are opposite to each other along the axial direction of the pipeline skeleton 30, and position the second filter material 42. The third positioning portion may include a third positioning groove, and the fourth positioning portion may include a fourth positioning groove, wherein the third positioning groove is configured to surround the pipeline skeleton 30 and open toward the fourth positioning portion, and the fourth positioning groove may be configured to surround the pipeline skeleton 30 and open toward the third positioning portion, and one end of the second filter material 42 along the axial direction may be positioned in the third positioning groove, and the other end may be positioned in the fourth positioning groove, so that the second filter material 42 can be positioned by the third positioning portion and the fourth positioning portion.

[0065] Optionally, the fifth positioning structure surrounds the pipeline skeleton 30, and the sixth positioning structure surrounds the fifth positioning structure, wherein the third positioning groove is located between the fifth positioning structure and the sixth positioning structure; the seventh positioning structure surrounds the pipeline skeleton 30, and the eighth positioning structure surrounds the seventh positioning structure, wherein the fourth positioning groove is located between the seventh positioning structure and the eighth positioning structure. Among them, any of the aforementioned fifth positioning structure, sixth positioning structure, seventh positioning structure and eighth positioning structure can be set as an annular rib, a boss or a plurality of protrusions arranged at intervals in the circumferential direction.

[0066] In addition, the shell component 10 in the utility model has two opposite ends, wherein one end of the shell component 10 can be provided with an interface group for connecting the water source interface and the pure water interface of the main body of the filtration system, and the other end of the shell component 10 can be provided with a handle to facilitate the installation of the filter element component 100 into the main body of the filtration system, or to remove it from the main body of the filtration component. By providing the inner cylinder 14, the handle can be conveniently provided, and the disassembly and assembly of the filter element component 100 can be facilitated.

[0067] The second end of the pipeline skeleton 30 can be positioned by the housing assembly 10 .

[0068] like Figure 1 and Figure 2 In some embodiments, the second end of the pipeline skeleton 30 is connected to the housing assembly 10, so that the housing assembly 10 and the flange bracket 20 are used to position the pipeline skeleton 30, and the second end of the pipeline skeleton 30 is provided with a second interface 304 connected to the second flow channel 302, which facilitates the connection between the pipeline skeleton 30 and the housing assembly 10, and improves the assembly efficiency and structural stability of the filter element assembly 100. In addition, the second interface 304 is provided at the end of the pipeline skeleton 30, which can facilitate the molding of the pipeline skeleton 30 and improve the molding efficiency of the pipeline skeleton 30.

[0069] like Figure 5 The shell assembly 10 also includes a shell 11, one end of the shell 11 is provided with a pipe connector 12, and the other end is provided with a cover plate 13, the pipe connector 12 is provided with a first positioning rib 121, a second positioning rib 122 and a third positioning rib 123, wherein a first channel is provided in the first positioning rib 121; the second positioning rib 122 surrounds the first positioning rib 121, and a second channel is provided between the first positioning rib 121 and the second positioning rib 122; the third positioning rib 123 surrounds the second positioning rib 122, and a third channel is provided between the second positioning rib 122 and the third positioning rib 123; the peripheral wall of the shell 11 surrounds the third positioning rib 123, and a fourth channel is provided between the peripheral wall of the shell 11 and the third positioning rib 123. Among them, the second end cover includes a second tube portion 161 and a second plate portion 162, the second tube portion 161 is passed through the inner side of the third positioning rib 123, and there is a gap between the second positioning rib 122, the inner periphery of the second plate portion 162 is connected to the second plate portion 162, and there is a gap between the outer periphery and the inner circumferential surface of the shell 11.

[0070] like Figures 1 to 6The pipeline skeleton 30 includes a main body 33 and a second joint 32 provided at the second end, a second interface 304 is provided on the end surface of the second joint 32, a third interface 305 is provided between the second joint 32 and the main body 33, and a flange is provided at the end of the main body 33, wherein the second joint 32 is passed through the first positioning rib 121 and is sealed with the inner circumference of the first positioning rib 121; the end of the main body 33 is passed through the second positioning rib 122 and is sealed with the inner circumference of the second positioning rib 122; the flange is abutted against the end of the second positioning rib 122. The pipeline joint 12 is provided with a fifth interface, a sixth interface, a seventh interface and an eighth interface.

[0071] The pipeline skeleton 30 is arranged in the shell 11, and one end is connected to the pipeline joint 12. The inner tube 14 is arranged in the shell 11, and the other end of the pipeline skeleton 30 is passed through and connected to the inner tube 14. The flange bracket 20 is arranged in the inner tube 14 and is arranged in the shell 11. A first cavity 101 is formed between one side of the flange bracket 20 and the inner tube 14, and a second cavity 104 is formed between the other side of the flange bracket 20 and the pipeline joint 12.

[0072] like Figures 1 to 7 The utility model also provides a pipeline skeleton 30, which can be applied to the aforementioned filter element assembly 100, wherein the pipeline skeleton 30 includes a first joint 31, a main body 33, and a second joint 32 distributed along the axial direction, the first joint 31 is connected to the first end of the main body 33, the second joint 32 is connected to the second end of the main body 33, the first flow channel 301 is penetrated between the first joint 31 and the main body 33, and the second flow channel 302 is penetrated between the second joint 32 and the main body 33. The first joint 31 can be connected to one end of the housing assembly 10, and the second joint 32 can be configured to be connected to the other end of the housing assembly 10, so as to realize the communication between the first cavity 101 and the second cavity 104, and realize multi-stage filtration. In addition, the pipeline skeleton 30 can be configured to be integrally formed.

[0073] In the present invention, the pipeline skeleton 30 is integrally formed, and the first flow channel 301 and the second flow channel 302 are separated from each other in the pipeline skeleton 30. The two flow channels can be integrated into the same component, that is, the pipeline skeleton 30, which can facilitate manufacturing and assembly, simplify the structure of the filter element assembly 100, and increase the filling space of the filter material in the filter element assembly 100, thereby improving the filtering effect.

[0074] Optionally, at least a portion of the first flow channel 301 and at least a portion of the second flow channel 302 are arranged side by side, which can improve the structural compactness of the pipeline skeleton 30 and reduce the difficulty of demolding the insert needle, thereby facilitating the construction of the first flow channel 301 and the second flow channel 302 and realizing the one-piece molding of the pipeline skeleton 30.

[0075] Among them, Figure 6, the end face of the first joint 31 is provided with a first interface 303 connected to the first flow channel 301, and the end face of the second joint 32 is provided with a second interface 304 connected to the second flow channel 302; a third interface 305 connected to the first flow channel 301 is provided between the second joint 32 and the main body 33, and a fourth interface 306 connected to the second flow channel 302 is provided between the first joint 31 and the main body 33. It can facilitate the molding of the pipeline skeleton 30. The pipeline skeleton 30 can construct two independent flow channels, and the first interface 303 and the third interface 305 of the pipeline skeleton 30 are the water inlet and water outlet of the first flow channel 301; the second interface 304 and the fourth interface 306 of the pipeline skeleton 30 are the water inlet and water outlet of the second flow channel 302. When used, water can enter the second flow channel 302 from the second interface 304 and flow out from the fourth interface 306, and after filtering, enter the first flow channel 301 from the third interface 305 and then flow out from the fourth interface 306.

[0076] Optionally, the first flow channel 301 extends in a straight direction, and the second flow channel 302 extends in a straight direction. The flow channel extending in the straight direction can be easily demolded during manufacturing, thereby realizing the one-piece molding of the pipeline skeleton 30. Specifically, the positions of the first flow channel 301 and the second flow channel 302 of the pipeline skeleton 30 can be provided with inserts for mold molding, and the inserts are removed during demolding to construct the first flow channel 301 and the second flow channel 302. The flow channel extending in a straight direction can be constructed by linear inserts, which is beneficial to improve manufacturing accuracy and facilitate demolding. During demolding, the inserts in the first flow channel 301 can be removed from the first interface 303 at the first end of the skeleton component; the inserts in the second flow channel 302 can be removed from the second interface 304 at the second end of the skeleton component. The two inserts will not interfere with each other during demolding, which is convenient for demolding.

[0077] At least a portion of the inner circumference of the first flow channel 301 is configured as a slope that gradually expands outward in the direction from the second end of the main body to the first end; or, at least a portion of the inner circumference of the second flow channel 302 is configured as a slope that gradually expands outward in the direction from the first end of the main body to the second end. Specifically, in combination with the above, when the insert pin is demolded from the first flow channel 301, the insert pin can be removed from the first end, therefore, at least a portion of the inner circumference of the first flow channel 301 is configured as a slope that gradually expands outward in the direction from the second end to the first end, so that the insert pin can be easily removed from the first end. Similarly, when the insert pin is demolded from the second flow channel 302, it can be removed from the second end, therefore, at least a portion of the inner circumference of the second flow channel 302 is configured as a slope that gradually expands outward in the direction from the first end to the second end, so that the insert pin can be easily removed from the second end. The inner circumference of the first flow channel 301 may be a sloped surface that gradually expands from the second end to the first end, or the inner circumference of the first flow channel 301 may have a straight line and a sloped surface, and the position near the first end is in a sloped surface, that is, the position near the demolding is in a sloped surface. Similarly, the inner circumference of the second flow channel 302 may be a sloped surface that gradually expands from the first end to the second end, or the inner circumference of the second flow channel 302 may have a straight line and a sloped surface, and the position near the second end is in a sloped surface. It should be noted that the inclination angle of the slope is the draft angle, which facilitates the release of the molded part from the mold.

[0078] The first joint 31 can be set to a circular tubular shape, which can be convenient for connection and coordination with other components. In addition, a sealing structure can be set on the tubular periphery of the first joint 31, which is conducive to improving the sealing effect and connection tightness after assembly. Specifically, a groove can be set on the outer peripheral surface of the first joint 31, and a sealing ring can be placed in the groove to achieve a sealing effect during assembly. Optionally, the second joint 32 can be set to a circular tubular shape, which can be convenient for connection and coordination with other components. Similarly, the circular tubular structure can facilitate the setting of a sealing structure when the second joint 32 cooperates with other components to improve the tightness of the connection. For example, the end cover in the filter element assembly 100 can extend into the second joint 32 and cooperate with the second joint 32, wherein the outer peripheral surface of the end cover can be provided with a sealing structure, and the sealing structure is provided between the end cover and the inner wall of the second joint 32, thereby improving the tightness of the connection.

[0079] In some embodiments of the present invention, the pipeline skeleton 30 is configured as a long strip, the first flow channel 301 and the second flow channel 302 extend along the axial direction of the pipeline skeleton 30, the length of the first flow channel 301 is not greater than 300 mm, and the length of the second flow channel 302 is not greater than 300 mm. In addition, the length of the first flow channel 301 and the length of the second flow channel 302 can be the same or different.

[0080] For example, the length of the first flow channel 301 may be 200 mm, 250 mm, or 300 mm, and the length of the second flow channel 302 may be 200 mm, 250 mm, or 300 mm, and the like.

[0081] In some embodiments of the utility model, the cross-sectional area of ​​the first flow channel 301 is not less than 30 square millimeters. The cross-sectional area of ​​the second flow channel 302 is not less than 30 square millimeters. Specifically, the cross-sectional areas of the first flow channel 301 and the second flow channel 302 determine the water flow rate and whether the flow channel can be manufactured using an integrated manufacturing process. Specifically, when the cross-sectional area of ​​the first flow channel 301 is greater than 30 square millimeters and the cross-sectional area of ​​the second flow channel 302 is greater than 30 square millimeters, the water flow rate can be guaranteed and the pin can be prevented from being deformed or broken, so that it is easy to demold and easy to manufacture. For example, the cross-sectional area of ​​the first flow channel 301 can be 35 square millimeters, 40 square millimeters, 45 square millimeters or 50 square millimeters. The cross-sectional area of ​​the second flow channel 302 can be 35 square millimeters, 40 square millimeters, 45 square millimeters or 50 square millimeters. In actual application, it can be selected according to factors such as the size of the skeleton device or the size of the filter element assembly 100 or the water purification effect, and the utility model is not limited thereto.

[0082] In some embodiments of the present invention, the cross-sectional area of ​​the first flow channel 301 and the cross-sectional area of ​​the second flow channel 302 may be the same or different, and may be adjusted according to actual usage and actual structure.

[0083] Combination Figure 7 In some embodiments of the present invention, the first flow channel 301 is configured as a semicircle. The second flow channel 302 is configured as a semicircle. Specifically, the first flow channel 301 and the second flow channel 302 are configured as a semicircle to facilitate water flow, and the first flow channel 301 and the second flow channel 302 can form a circle after being connected, which can be convenient for manufacturing and application.

[0084] Optionally, the first flow channel 301 and the second flow channel 302 are symmetrically distributed along the axial direction. For example, the first flow channel 301 is set to be semicircular, the second flow channel 302 is set to be semicircular, and the first flow channel 301 and the second flow channel 302 are connected to form a circle.

[0085] Alternatively, the first flow channel 301 and the second flow channel 302 are distributed asymmetrically along the axial direction. Specifically, referring to the figure, the pipeline skeleton 30 includes a first side wall 341, a second side wall 342 and a middle wall 343, wherein the first side wall 341 and the second side wall 342 are respectively connected to opposite sides of the middle wall 343, a first flow channel 301 is formed between the first side wall 341 and the middle wall 343, and a second flow channel 302 is formed between the second side wall 342 and the middle wall 343, wherein the first side wall 341 and the second side wall 342 are configured as arcs with different radii.

[0086] like Figure 7 In some embodiments of the present invention, the arch height of the first side wall 341 is H1, and the arch height of the second side wall 342 is H2, H1>H2; the radius of the first side wall 341 is R1, and the radius of the second side wall 342 is R2, R1<R2. That is to say, compared with the second side wall 342, the arch height of the first side wall 341 is higher and the radius is smaller, while the arch height of the second side wall 342 is lower and the radius is larger, thereby making the fluid flow of the first flow channel 301 and the second flow channel 302 substantially the same. Specifically, it can be adjusted according to the actual size so that the flow of the first flow channel 301 and the second flow channel 302 is substantially the same. In this way, when the skeleton device is applied to the filter element assembly 100, compared with the second flow channel 302, the space occupied by the first flow channel 301 is small, thereby, the space around the first flow channel 301 can be increased, and this part of the space can be used to increase the filter material, thereby further increasing the filling space of the filter material, for example, filling the dispersed filter material to improve the filtering effect. Specifically, the arch height of the first side wall 341 is not less than 7 mm; the arch height of the second side wall 342 is not less than 11 mm.

[0087] Optionally, the arch height of the first side wall 341 is H1, the arch height of the second side wall 342 is H2, H1 = H2; the radius of the first side wall 341 is R1, the radius of the second side wall 342 is R2, R1 = R2. For example, the arch height of the first side wall 341 is equal to the arch height of the second side wall 342, and is not less than 9 mm.

[0088] It should be noted that the aforementioned arch height of the side wall refers to the vertical distance from the lowest point to the highest point of the arc.

[0089] According to the filter element assembly of the embodiment of the utility model, it includes a pipeline skeleton 30, and the pipeline skeleton 30 includes a first flow channel 301 and a second flow channel 302 which are isolated from each other. The pipeline pipeline skeleton 30 includes a first side wall 341, an intermediate wall 343, and a second side wall 342. The first side wall 341 is connected to the intermediate wall 343 to form the first flow channel 301, and the second side wall 342 is connected to the intermediate wall 343 to form the second flow channel 302. The inlet of the first flow channel 301 is the peripheral wall opening of the pipeline skeleton 30, and the peripheral wall opening is located at one end of the pipeline skeleton 30 close to the filter element interface (the water connection interface between the filter element and the whole machine). The upper end of the pipeline skeleton 30 is provided with a first sealing groove and a second sealing groove, and the inlet of the first flow channel 301 is located between the two sealing grooves. The first flow channel 301 in the pipeline skeleton 30 flows through the hollow pipe part of the lower end cover after passing through the end outlet, and then flows to the outside of the filter material, and flows into the inlet of the second flow channel 302 of the pipeline skeleton 30 after being filtered by the filter material. The inlet of the second flow channel 302 is the side wall opening of the end of the pipeline skeleton 30 away from the filter element interface. The outlet of the second flow channel 302 is the end of the other end of the pipeline skeleton 30. The flow direction of the first flow channel 301 and the second flow channel 302 in the pipeline skeleton 30 is axial (except for the inlet and outlet).

[0090] The utility model also provides a filtering system, including the aforementioned filter element assembly 100.

[0091] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0092] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0093] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0094] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0096] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A filter element assembly, characterized in that: include: A housing assembly, wherein one end of the housing assembly is provided with a connecting passage and the other end is provided with a pipe joint; A pipeline skeleton, wherein the pipeline skeleton is arranged in the housing component, a first end of the pipeline skeleton is connected to the one end of the housing component, and a second end of the pipeline skeleton is connected to the pipeline joint, and a first cavity is arranged between the pipeline skeleton and the housing component; A first filter material, the first filter material is arranged in the first cavity and surrounds the pipeline skeleton, a first sub-cavity is arranged between the first filter material and the housing component, and a second sub-cavity is arranged between the first filter material and the pipeline skeleton; The pipeline skeleton is integrally formed and has a first flow channel and a second flow channel. The connecting channel connects the first flow channel and the first sub-cavity, and the second flow channel connects the second sub-cavity and the pipeline joint.

2. The filter element assembly according to claim 1, characterized in that: The first end of the pipeline skeleton is provided with a first interface connected to the first flow channel, the connecting channel is connected to the first interface and the first sub-cavity, and the first interface is provided on the end surface of the first end of the pipeline skeleton.

3. The filter element assembly according to claim 2, characterized in that: The housing assembly includes a first end cover, the first end cover includes a first tube portion, the first tube portion extends along the axis of the pipeline skeleton and passes through the first interface, and the first tube portion communicates with the first flow channel and the connecting channel.

4. The filter element assembly according to claim 3, characterized in that: The outer shell assembly further includes an inner cylinder, the first end cover is arranged on the inner cylinder, the first end cover further includes a first plate portion, the first plate portion is connected to the first tube portion, and the connecting channel is arranged between the first plate portion and the end wall of the inner cylinder.

5. The filter element assembly according to claim 1, characterized in that: The pipeline skeleton includes a main body and a first joint distributed along the axial direction, the first joint is connected to the first end of the main body, a fourth interface is formed between the main body and the first joint, and the fourth interface is arranged in the first cavity and connects the second sub-cavity and the second flow channel.

6. The filter element assembly according to any one of claims 1 to 5, characterized in that: A second cavity is also provided between the pipeline skeleton and the shell assembly, the filter element assembly also includes a flange bracket, the flange bracket is provided on the shell assembly, the pipeline skeleton is passed through the flange bracket, the first cavity and the second cavity are respectively provided on both sides of the flange bracket, the filter element assembly also includes a second filter material, the second filter material is provided in the second cavity, a third sub-cavity is provided between the second filter material and the shell assembly, and a fourth sub-cavity is provided between the second filter material and the pipeline skeleton.

7. The filter element assembly according to claim 6, characterized in that: The second end of the pipeline skeleton is provided with a second interface connected to the second flow channel and a third interface connected to the first flow channel, the shell assembly is provided with a fifth interface connected to the second interface, a sixth interface connected to the third sub-cavity, a seventh interface connected to the fourth sub-cavity and / or an eighth interface connected to the third interface, the second interface is provided on the end face of the second end of the pipeline skeleton, and the third interface is provided on the peripheral surface of the second end of the pipeline skeleton.

8. The filter element assembly according to claim 7, characterized in that: The pipeline joint includes a first positioning rib, the second end of the pipeline skeleton is penetrated by the first positioning rib, and the fifth interface and the second interface are connected to the inner space of the first positioning rib.

9. The filter element assembly according to claim 8, characterized in that: The pipeline joint also includes a second positioning rib, the second positioning rib surrounds the first positioning rib, the pipeline skeleton includes a main body and a second joint distributed along the axial direction, the second joint is connected to the second end of the main body, the second interface is provided at the second joint, and the third interface is provided between the main body and the second joint. The second joint is penetrated through the first positioning rib, the second end of the main body is penetrated through the second positioning rib, and the third interface and the eighth interface are connected to the space between the first positioning rib and the second positioning rib.

10. The filter element assembly according to claim 9, characterized in that: The pipeline joint further includes a third positioning rib, the third positioning rib surrounds the second positioning rib, and the fourth sub-cavity and the seventh interface communicate with the space between the third positioning rib and the second positioning rib.

11. The filter element assembly according to claim 10, characterized in that: The housing assembly further includes a shell, the third positioning rib is disposed inside the shell, and the sixth interface and the third sub-cavity are in communication with the space between the third positioning rib and the shell.

12. The filter element assembly according to claim 6, characterized in that: The flange bracket and the pipeline skeleton are integrally formed.

13. The filter element assembly according to claim 6, characterized in that: The housing assembly further includes a second end cover, wherein the second end cover and the flange bracket are distributed along the axial direction of the pipeline skeleton, and the second filter material is positioned between the second end cover and the flange bracket.

14. The filter element assembly according to claim 1, characterized in that: The pipeline skeleton includes a first joint, a main body and a second joint distributed along the axial direction, the first joint is connected to the first end of the main body, the second joint is connected to the second end of the main body, the first flow channel is arranged between the first joint and the main body, and the second flow channel is arranged between the second joint and the main body.

15. The filter element assembly according to claim 14, characterized in that: The end face of the first joint is provided with a first interface connected to the first flow channel; the end face of the second joint is provided with a second interface connected to the second flow channel; a third interface connected to the first flow channel is provided between the second joint and the main body; and a fourth interface connected to the second flow channel is provided between the first joint and the main body.

16. The filter element assembly according to claim 14, characterized in that: The first flow channel and the second flow channel extend in a straight direction; or, at least a portion of the inner circumference of the first flow channel is configured as a slope that gradually expands outward in the direction from the second end to the first end of the main body; or, at least a portion of the inner circumference of the second flow channel is configured as a slope that gradually expands outward in the direction from the first end to the second end of the main body.

17. The filter element assembly according to claim 14, characterized in that: The main body includes a first side wall, a middle wall and a second side wall. The first side wall is connected to the middle wall to form the first flow channel, and the second side wall is connected to the middle wall to form the second flow channel.

18. A filtering system, characterized in that: A filter element assembly comprising any one of claims 1-17.

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