Framework device of filter element assembly, filter element assembly and filtering system

Abstract

The utility model discloses a framework device of a filter element assembly, the filter element assembly and a filtering system, the framework device comprises a framework main body and a flange, and at least one flow channel is arranged in the framework main body; the flange is arranged on the outer side of the framework main body and surrounds the framework main body, and the framework main body and the flange are integrally formed. According to the framework device of the filter element assembly, the flange and the framework main body can be integrated, so that the number of structural parts of the filter element assembly is reduced, and the integral structure is convenient to manufacture and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a skeleton device of a filter element assembly, a filter element assembly having the skeleton device, and a filtration system having the skeleton assembly or the filter element assembly. Background Art

[0002] The integration of filter elements is the development trend of water purifiers, which can reduce the size of water purifiers and at the same time reduce the frequency of filter element replacement by users. In related technologies, the pre-filter element assembly and the post-filter element assembly of the water purification device are separately arranged, and the same or different filtration functions can be achieved. When the user replaces the filter element assembly, these two filter element assemblies need to be replaced simultaneously, and the operation is relatively complicated. Integrating the pre-filter element assembly and the post-filter element assembly into one filter element assembly, when replacing the pre-filter and the post-filter, only one filter element assembly needs to be replaced, and at the same time, the size of the water purifier can be reduced. In related technologies, separating the flow channels for the upper and lower combination of the pre-filter and the post-filter usually requires multiple components. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related technologies to some extent. For this reason, an object of the utility model is to provide a skeleton device in which a skeleton main body and a flange are integrally formed.

[0004] Another object of the utility model is to provide a filter element assembly including the aforementioned skeleton device.

[0005] Another object of the utility model is to provide a filtration system including the aforementioned filter element assembly.

[0006] The skeleton device of the filter element assembly according to an embodiment of the utility model includes: a skeleton main body and a flange. At least one flow channel is provided in the skeleton main body; the flange is provided on the outer side of the skeleton main body and surrounds the skeleton main body, and the skeleton main body and the flange are integrally formed.

[0007] The skeleton device of the filter element assembly according to an embodiment of the utility model can integrate the flange and the skeleton main body into one body to reduce the number of structural parts of the filter element assembly, and the integrated structure is convenient for manufacturing and assembly.

[0008] In addition, the skeleton device of the filter element assembly according to the above embodiment of the utility model may further have the following additional technical features:

[0009] In some examples of the utility model, the flange axially divides the skeleton main body into a first part and a second part, and the inlet and outlet of the flow channel are respectively located in the first part and the second part.

[0010] In some examples of the present utility model, the at least one flow channel includes a first flow channel. The circumferential surface of the first part is provided with a first opening communicating with the first flow channel, and the end surface of the second part is provided with a third opening communicating with the first flow channel.

[0011] In some examples of the present utility model, the at least one flow channel includes a second flow channel. The circumferential surface of the second part is provided with a second opening communicating with the second flow channel, and the end surface of the first part is provided with a fourth opening communicating with the second flow channel.

[0012] In some examples of the present utility model, the skeleton main body has opposite first and second ends. At least a part of the inner circumferential surface of the first flow channel is configured as an inclined surface that gradually expands outward in the direction from the second end to the first end; or, at least a part of the inner circumferential surface of the second flow channel is configured as an inclined surface that gradually expands outward in the direction from the first end to the second end.

[0013] In some examples of the present utility model, the first part and the second part extend along a straight line.

[0014] In some examples of the present utility model, the first part is a circular tube.

[0015] In some examples of the present utility model, the second part is a circular tube.

[0016] In some examples of the present utility model, the ratio of the length of the second part to the length of the first part is not greater than 3.

[0017] In some examples of the present utility model, the flange has opposite first and second sides. The first side is provided with a first convex structure surrounding the skeleton main body.

[0018] In some examples of the present utility model, the inner side surface of the first convex structure faces the skeleton main body and gradually expands outward in the direction away from the first side.

[0019] In some examples of the present utility model, the outer side surface of the first convex structure faces away from the skeleton main body and gradually contracts inward in the direction away from the first side.

[0020] In some examples of the present utility model, the first side is provided with a third convex structure surrounding the skeleton main body, and the third convex structure is provided inside the first convex structure.

[0021] In some examples of the present utility model, the flange has opposite first and second sides. The second side is provided with a second convex structure surrounding the skeleton main body, and the second convex structure is spaced apart from the outer peripheral edge of the flange.

[0022] In some examples of the present utility model, the outer peripheral surface of the second convex structure gradually shrinks inwards in a direction away from the second side surface.

[0023] In some examples of the present utility model, one side of the flange away from the skeleton main body has an outer peripheral surface, the outer peripheral surface connects the first side surface and the second side surface, and a flange is provided on the outer peripheral surface, and the flange extends radially.

[0024] In some examples of the present utility model, the outer diameter of the flange is not less than 2 times the outer diameter of the skeleton main body.

[0025] In some examples of the present utility model, the skeleton main body has a first flow channel and a second flow channel, and the first flow channel and the second flow channel are separated from each other inside the skeleton main body.

[0026] A filter element assembly according to some embodiments of the present utility model includes: a housing and the aforementioned skeleton device, the skeleton main body is arranged inside the housing; the flange axially separates a first accommodation cavity and a second accommodation cavity inside the housing.

[0027] For the filter element assembly according to some embodiments of the present utility model, a flange is provided on the skeleton device, which can separate two filter cavities inside the housing, which can reduce the internal components of the filter element assembly, facilitate the simplification of the structure of the filter element assembly, and is convenient for manufacturing and assembly.

[0028] In some examples of the present utility model, the filter element assembly further includes an inner cylinder, the inner cylinder is sleeved inside the housing, the inner cylinder has a closed side and an open side, the flange has opposite first and second sides, and the first side of the flange is hermetically connected to the open side of the inner cylinder to construct the first accommodation cavity; the second side of the flange is hermetically connected to the open side of the inner cylinder to construct the second accommodation cavity.

[0029] In some examples of the present utility model, the filter element assembly further includes a first filter medium, the first filter medium is arranged in the first accommodation cavity and surrounds the outside of the skeleton main body, and one end of the first filter medium abuts against the first side of the flange.

[0030] In some examples of the present utility model, the filter element assembly further includes a second filter medium, the second filter medium is arranged in the second accommodation cavity and surrounds the outside of the skeleton main body, and one end of the second filter medium abuts against the second side of the flange.

[0031] In some examples of the present utility model, the skeleton main body has a first flow channel and a second flow channel, and the first flow channel and the second flow channel are separated from each other inside the skeleton main body; the first flow channel communicates with the first accommodation cavity, and the second flow channel communicates with the second accommodation cavity.

[0032] A filter system according to an embodiment of the present utility model includes a framework device of the filter element assembly as described above; or the filter element assembly as described above. Description of the Drawings

[0033] Figure 1 is a cross-sectional view of the framework device in some embodiments of the present utility model;

[0034] Figure 2 is a schematic structural view of the framework device in some embodiments of the present utility model;

[0035] Figure 3 is a cross-sectional view of the filter element assembly in an embodiment of the present utility model;

[0036] Figure 4 is a cross-sectional view of the filter element assembly in an embodiment of the present utility model, which shows the flow direction of the fluid in the first accommodation chamber;

[0037] Figure 5 is a cross-sectional view of the filter element assembly in an embodiment of the present utility model, which shows the flow direction of the fluid in the second accommodation chamber.

[0038] Reference Signs:

[0039] 100, framework device; 10, framework main body; 11, first part; 12, second part; 121, positioning flange; 110, first flow channel; 111, first interface part; 101, first opening; 103, third opening; 120, second flow channel; 122, second interface part; 102, second opening; 104, fourth opening; 105, positioning groove; 130, third flow channel; 20, flange; 21, first side surface; 22, second side surface; 23, outer peripheral surface; 231, flange; 211, first convex structure; 212, third convex structure; 213, rib; 221, second convex structure; 1000, filter element assembly; 200, housing; 210, first accommodation chamber; 220, second accommodation chamber; 201, first chamber; 202, second chamber; 203, third chamber; 204, fourth chamber; 300, inner cylinder; 310, mating part; 410, first filter medium; 420, second filter medium; 510, first end cap; 520, second end cap. Detailed Description of the Embodiments

[0040] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0041] In combination with Figure 1, the skeleton device 100 of the filter element assembly 1000 according to an embodiment of the present utility model includes: a skeleton main body 10 and a flange 20. The flange 20 is disposed outside the skeleton main body 10 and surrounds the skeleton main body 10. The skeleton main body 10 and the flange 20 are integrally formed, so that the flange 20 and the skeleton main body 10 can be integrated into one body. Thus, the number of structural components of the filter element assembly 1000 can be reduced, and the integrally formed structure is convenient for manufacturing and assembly. Further, at least one flow channel is provided in the skeleton main body 10, that is, the skeleton main body 10 can have one flow channel or more than one flow channel, such as two flow channels. Thus, according to actual usage conditions, two flow channels can be integrated in the skeleton main body 10, which can simplify the structure of the skeleton device 100.

[0042] In addition, when the skeleton device 100 is applied to the filter element assembly 1000, the flange 20 disposed around the skeleton main body 10 can also axially separate the chambers in the filter element assembly 1000, which is convenient for directly separating two filter chambers in the filter element assembly 1000, thereby simplifying the structure of the filter element assembly 1000.

[0043] The skeleton device 100 of the filter element assembly 1000 according to an embodiment of the present utility model can integrate the flange 20 and the skeleton main body 10 into one body to reduce the number of structural components of the filter element assembly 1000, and the integral structure is convenient for manufacturing and assembly.

[0044] In actual application, at least one flow channel can be provided in the skeleton main body 10. The flow channel extends axially, and the flange 20 extending radially is connected outside the skeleton main body 10, which can be used to separate chambers. Thus, the skeleton device 100 has strong functionality in the filter element assembly 1000, can improve some components to simplify the structure of the filter element assembly 1000. In addition, the skeleton main body 10 and the flange 20 are designed as an integral structure, which is convenient for manufacturing and assembly, and the tightness of the assembly with the filter element assembly 1000 is stronger.

[0045] Combined with Figure 1 , in some embodiments of the present utility model, the flange 20 axially separates the skeleton main body 10 into a first part 11 and a second part 12. The inlet and outlet of the flow channel are respectively located in the first part 11 and the second part 12, that is, the inlet and outlet of the flow channel are arranged axially separated. Thus, when demolding, the mold can be separated along the axial direction to construct the first part 11 and the second part 12, and it is convenient to construct the inlet and outlet of the flow channel. Specifically, during the manufacturing process of the integral forming manufacturing process, the first mold and the second mold can be closed along the axial direction of the skeleton main body 10. When demolding, separation is performed at the flange 20, so that the skeleton main body 10 extending axially and the flange 20 extending radially can be constructed.

[0046] In some embodiments of the present utility model, combined with Figure 1, the first part 11 and the second part 12 extend along a straight line, and the straight-line extension can facilitate demolding during manufacturing, thereby realizing the integral molding of the skeleton body 10 and the flange 20.

[0047] In some embodiments of the present utility model, the first part 11 is a circular tube. The second part 12 can also be a circular tube. Specifically, the circular tube can facilitate connection and cooperation with other components. In addition, a sealing structure can be provided on the outer periphery of the tube of the first part 11 or the second part 12, which is beneficial to improving the sealing effect and connection tightness after assembly. In addition, the circular tube is easy to manufacture and can also facilitate the formation of a flow channel inside.

[0048] In some embodiments of the present utility model, in combination Figure 1 and Figure 3 , the length ratio of the second part 12 to the first part 11 is not greater than 3. Specifically, the first part 11 and the second part 12 are located on opposite sides of the flange 20. Among them, the first part 11 is adapted to cooperate with the first filter medium 410 to form a first accommodation cavity 210, and the second part 12 is adapted to cooperate with the second filter medium 420 to form a second accommodation cavity 220. The length of the first part 11 can be equal to the length of the second part 12. The length of the first part 11 can also be less than the length of the second part 12, that is, the first accommodation cavity 210 is smaller than the second accommodation cavity 220. Since the filtration requirements and filtered water quality of the first accommodation cavity 210 and the second accommodation cavity 220 are different, the sizes of the first filter medium 410 and the second filter medium 420 are different. For example, the second accommodation cavity 220 can be for primary filtration, and the first accommodation cavity 210 can be for secondary filtration. Therefore, the length dimension of the second filter medium 420 can be slightly larger than the length dimension of the first filter medium 410 to balance the consumption degree of the first filter medium 410 and the second filter medium 420. In this way, when the user replaces the filter element assembly 1000, the consumption degrees of the first filter medium 410 and the second filter medium 420 are similar, which can improve the filtration effect while avoiding waste. Specifically, the lengths of the first part 11 and the second part 12 can be set according to the filtration requirements or sizes of the first accommodation cavity 210 and the second accommodation cavity 220, but the length ratio of the first part 11 to the second part 12 should not be too large. The length ratio of the first part 11 to the second part 12 can affect the proportional relationship between the front and rear filter media or the first filter medium 410 and the second filter medium 420. If the size difference between the first accommodation cavity 210 and the second accommodation cavity 220 is too large, it will cause a difference in the service lives of the first filter medium 410 and the second filter medium 420. And the first filter medium 410 and the second filter medium 420 are in the same filter element assembly 1000, and this difference will reduce the durability of the filter element assembly 1000 or reduce the filtration effect of the filter element assembly 1000 after one of the filter elements reaches the service life.

[0049] More specifically, the length of the second part 12 can be twice that of the first part 11, so as to further increase the filtering space or the size of the filter medium and improve the filtering effect. In practical applications, it can be reasonably arranged according to the size of the filter element assembly 1000 or the filtering requirements of the filter element assembly 1000. For example, the length ratio of the second part 12 to the first part 11 is 2.5 or 3, etc. The present invention is not limited thereto.

[0050] Combined with Figure 1 , in some embodiments of the present invention, the flange 20 has opposite first side surface 21 and second side surface 22. The first side surface 21 faces the first part 11, and the second side surface 22 faces the second part 12. That is to say, the flange 20 can separate the skeleton main body 10. Specifically, the flange 20 extends radially, so that a first accommodation cavity 210 can be constructed between the first part 11 and the first side surface 21, and a second accommodation cavity 220 can be constructed between the second part 12 and the second side surface 22. During manufacturing, the mold can be split or demolded from the flange 20, that is, the first side surface 21 and the first part 11 are constructed by the first mold, the second side surface 22 and the second part 12 are constructed by the second mold, and the first mold and the second mold are separated from the flange 20. More specifically, when the structure of the first part 11 or the second part 12 is relatively complex, for example, combined with Figure 1 , a positioning flange 231121 can be provided on the outer periphery of the second part 12. The positioning flange 231121 extends radially, and a positioning groove 105 can also be constructed on the peripheral surface of the second part 12. At this time, the second mold can include a first half and a second half, and the first half and the second half can be separated along the radial direction of the skeleton main body 10 to construct the positioning flange 231121 and the positioning groove 105. Thus, when the skeleton main body 10 and the flange 20 are demolded, on the first side surface 21 of the flange 20, the first mold is axially withdrawn, and on the second side surface 22 of the flange 20, the first half and the second half of the second mold are separated radially to achieve demolding.

[0051] Combined with Figure 1 and Figure 3, in some embodiments of the present utility model, the flange 20 has opposite first side 21 and second side 22. The first side 21 is provided with a first convex structure 211 surrounding the skeleton body 10, and the first convex structure 211 protrudes axially from the first side 21. During manufacturing, the first side 21 of the flange 20 can be demolded axially to construct the first side 21 and the first convex structure 211. Specifically, the first convex structure 211 is provided at one end of the first side 21 away from the skeleton body 10, and the first convex structure 211 is sealingly connected to the inner wall of the filter element housing 200 or the inner cylinder 300. When the skeleton device 100 is applied to the filter element assembly 1000, the flange 20 can separate a first accommodation cavity 210 and a second accommodation cavity 220 in the filter element assembly 1000, and the first convex structure 211 can be connected to the inner wall of the housing 200 of the filter element assembly 1000 or the inner cylinder 300 to construct a cavity.

[0052] More specifically, in combination with Figure 1 , the inner side surface of the first convex structure 211 faces the skeleton body 10 and gradually expands outward in a direction away from the first side 21; the outer side surface of the first convex structure 21 faces away from the skeleton body 10 and gradually contracts inward in a direction away from the first side 21, so as to facilitate demolding. In addition, the outer side surface of the first convex structure 211 is also adapted to cooperate with the filter element assembly.

[0053] In some embodiments of the present utility model, the first side 21 is provided with a third convex structure 212 surrounding the skeleton body 10. The third convex structure 212 is provided inside the first convex structure 211, and the third convex structure 212 and the first convex structure 211 are arranged at intervals. A first placement groove is formed between the outer wall of the third convex structure 212 and the inner wall of the first convex structure 211, and the first filter medium 410 is placed in the first placement groove. In other words, the first convex structure 211 and the third convex structure 212 can limit the first filter medium 410 in the radial direction. The first side is also provided with a rib 213. The rib 213 is provided between the first convex structure 211 and the third convex structure 212, and the rib 213 abuts against the end surface of the first filter medium 410 in the axial direction to facilitate supporting and fixing the filter medium and improve the structural stability.

[0054] During manufacturing, there can be two demolding methods at the position of the flange 20. In combination with Figure 1 , the first convex structure 211 extends axially in a direction away from the first side 21, and the first convex structure 211 is provided on the outer peripheral surface 23 of the flange 20. Thus, during demolding, the first mold can directly construct the first convex structure 211, and the shape of the first convex structure 211 can be directly constructed when the first mold separates axially. It can also be that the first mold and the second mold jointly construct the first convex structure 211. When separating, the first mold separates axially from the inner peripheral surface of the first convex structure 211, and the second mold separates radially from the outer peripheral surface 23 of the first convex structure 211.

[0055] Combined with Figure 1 and Figure 2 In some embodiments of the present utility model, a second convex structure 221 surrounding the skeleton main body 10 is provided on the second side surface 22, and the second convex structure 221 is spaced apart from the outer peripheral edge of the flange 20. When the skeleton device 100 is applied to the filter element assembly 1000, the skeleton main body 10 needs to be connected to the filter element assembly 1000. The second convex structure 221 can cooperate with the tooling during assembly to realize the welded connection between the skeleton device 100 and the housing 200 or the inner cylinder 300 of the filter element assembly 1000. For example, the skeleton device 100 is rotated to realize the fixed connection by means of rotary welding. Optionally, the second convex structure 221 is connected to the skeleton main body 10 and extends radially, so as to facilitate the cooperation with the tooling.

[0056] Furthermore, the outer peripheral surface of the second convex structure 221 gradually shrinks inward in the direction away from the second side surface 22, which can facilitate the connection of the tooling along the axial direction and also facilitate demolding.

[0057] In addition, there is a gap between the second convex structure 221 and the housing 200 or the inner cylinder 300 of the filter element assembly 1000. A second placement groove is formed between the outer peripheral wall of the second convex structure 221 and the inner peripheral wall of the housing 200 or the inner peripheral wall of the inner cylinder 300 of the filter element assembly 1000. The second filter medium 420 is arranged in the second placement groove to facilitate the positioning of the second filter medium 420. The end surface of the second filter medium 420 in the axial direction abuts against the second side surface 22, which can improve the structural stability.

[0058] In some embodiments of the present utility model, the first convex structure is in a circular ring shape. The second convex structure 221 is circular. This can facilitate manufacturing and facilitate the cooperation with other components.

[0059] Combined with Figure 1 In some embodiments of the present utility model, the side of the flange 20 away from the skeleton main body 10 has an outer peripheral surface 23, and the outer peripheral surface 23 connects the first side surface 21 and the second side surface 22. Specifically, the outer peripheral surface 23 of the flange 20 can be connected to the housing 200 of the filter element assembly 1000 or the inner cylinder 300 of the filter element assembly 1000 in the radial direction to axially separate two cavities in the filter element assembly 1000, which can facilitate the cooperation of the flange 20 with other components. More specifically, the outer peripheral surface 23 is provided with a flange 231, and the flange 231 extends radially. In this way, the flange 231 can be connected to the housing 200 or the inner cylinder 300 to facilitate the connection and improve the connection effect and connection stability after connection. For example, the flange 20 and the housing 200 or the inner cylinder 300 can be connected by means of spin welding, so that the outer peripheral surface 23 of the flange 20 is not affected, which is convenient for connection and reduces the requirement for the precision of the components, and is beneficial to reducing the manufacturing cost.

[0060] Combined with Figure 1 , in some embodiments of the present utility model, at least one runner includes a first runner 110. A first opening 101 communicating with the first runner 110 is provided on the peripheral surface of the first part 11, and a third opening 103 communicating with the first runner 110 is provided on the end surface of the second part 12. In this way, the first opening 101 and the third opening 103 of the first runner 110 are respectively located on the first part 11 and the second part 12. During demolding, the first part 11 and the second part 12 can be demolded separately, so that the first opening 101 and the third opening 103 can be directly constructed.

[0061] At least one runner includes a second runner 120. A second opening 102 communicating with the second runner 120 is provided on the peripheral surface of the second part 12, and a fourth opening 104 communicating with the second runner 120 is provided on the end surface of the first part 11. In this way, the second opening 102 and the fourth opening 104 of the second runner 120 are respectively located on the first part 11 and the second part 12. During demolding, the first part 11 and the second part 12 can be demolded separately, so that the second opening 102 and the fourth opening 104 can be directly constructed.

[0062] More specifically, the third opening 103 of the first runner 110 and the fourth opening 104 of the second runner 120 are located at different ends of the skeleton body 10. In this way, during demolding, the ejector pin in the first runner 110 can be ejected from the third opening 103 at the first end of the skeleton assembly; the ejector pin in the second runner 120 can be ejected from the fourth opening 104 at the second end of the skeleton assembly. The two ejector pins will not interfere with each other during demolding, which is convenient for demolding.

[0063] Further, in some embodiments of the present utility model, at least a part of the inner peripheral surface of the first runner 110 is configured as an inclined surface that gradually expands outward in the direction from the second end to the first end. At least a part of the inner peripheral surface of the second runner 120 is configured as an inclined surface that gradually expands outward in the direction from the first end to the second end. Specifically, in combination with the foregoing, when the insert pin is demolded from the first runner 110, the insert pin can be withdrawn from the first end. Therefore, at least a part of the inner peripheral surface of the first runner 110 is configured as an inclined surface that gradually expands outward in the direction from the second end to the first end, so that the insert pin can be easily withdrawn from the first end. Similarly, when the insert pin is demolded from the second runner 120, it can be withdrawn from the second end. Therefore, at least a part of the inner peripheral surface of the second runner 120 is configured as an inclined surface that gradually expands outward in the direction from the first end to the second end, so that the insert pin can be easily withdrawn from the second end. Among them, the inner peripheral surface of the first runner 110 can be an inclined surface that gradually expands outward from the second end to the first end, or the inner peripheral surface of the first runner 110 has a linear shape and an inclined surface shape, and is in an inclined surface shape near the first end, that is, the structure near the demolding position is in an inclined surface shape. Similarly, the inner peripheral surface of the second runner 120 can be an inclined surface that gradually expands outward from the first end to the second end, or the inner peripheral surface of the second runner 120 has a linear shape and an inclined surface shape, and is in an inclined surface shape near the second end.

[0064] It should be noted that the inclination angle of the inclined surface is the draft angle, which is convenient for the formed part to be detached from the mold.

[0065] In some embodiments of the present utility model, the projection of the first opening 101 along the radial direction does not overlap with the projection of the flange 20 along the radial direction. That is to say, when demolding, the demolding of the flange 20 will not interfere with the first opening 101, so that the integral molding manufacturing of the skeleton body 10 and the flange 20 can be realized. More specifically, the first opening 101 forms a notch on the peripheral wall of the skeleton body 10. During manufacturing, the notch can be formed by the third mold. Specifically, the second mold is provided with a relief groove, and the third mold extends into the second mold from the relief groove. Thus, the second mold can form the second side surface 22 of the flange 20, the protruding structure on the second side surface 22, and the first part 11 of the skeleton body 10, and the third mold extending into the second mold can form the first opening 101 on the first part 11. When demolding, the third mold can be withdrawn first, and then the second mold can be withdrawn axially.

[0066] In some embodiments of the present utility model, in combination with Figure 1 , that is to say, when demolding, the demolding of the flange 20 will not interfere with the second opening 102, so that the integral molding manufacturing of the skeleton body 10 and the flange 20 can be realized.

[0067] In some embodiments of the present invention, the skeleton body 10 has a first flow channel 110 and a second flow channel 120, and the first flow channel 110 and the second flow channel 120 are separated from each other in the skeleton body 10. In other words, the first flow channel 110 and the second flow channel 120 separated from each other can be directly constructed on the skeleton body 10, and the skeleton body 10 is an integrated structure, and the two flow channels can be integrated into the same component, that is, the skeleton device 100, which can be easy to manufacture and assemble, simplify the structure of the filter element assembly 1000, and increase the filling space of the filter material in the filter element assembly 1000, thereby improving the filtering effect.

[0068] More specifically, the skeleton body 10 is integrally formed, and the skeleton body 10 has a first flow channel 110 and a second flow channel 120, and the first flow channel 110 and the second flow channel 120 are separated from each other in the skeleton body 10. One of the first flow channel 110 and the second flow channel 120 can be a water inlet flow channel and the other can be a water outlet flow channel. When used, water can enter the filter space from the water inlet flow channel for filtration, and then flow out from the water outlet flow channel after filtration.

[0069] At least a portion of the first flow channel 110 and at least a portion of the second flow channel 120 are arranged side by side, which can improve the structural compactness of the skeleton body 10. There are inlay pins in the mold, and the side-by-side arrangement can also reduce the difficulty of demolding the inlay pins, which facilitates the construction of the first flow channel 110 and the second flow channel 120 and realizes the one-piece molding of the skeleton body 10.

[0070] More specifically, in some embodiments of the present invention, the first flow channel 110 and the second flow channel 120 extend in a straight line, and the flow channel extending in a straight line can be easily demolded during manufacturing, thereby realizing the integral molding of the skeleton body 10. Specifically, the positions of the first flow channel 110 and the second flow channel 120 of the skeleton body 10 can be provided with insert pins for mold molding, and the insert pins are removed during demolding to construct the first flow channel 110 and the second flow channel 120. The flow channel extending in a straight line can be constructed by a linear insert pin, which is conducive to improving manufacturing accuracy and facilitating demolding.

[0071] Progress one place, combined Figure 1 The first flow channel 110 further includes a first interface portion 111, and the second flow channel 120 further includes a second interface portion 122. The first interface portion 111 expands outward relative to the first flow channel 110, and the second interface portion 122 expands outward relative to the second type of flow channel. Specifically, the first interface portion 111 and the second interface portion 122 can be used to connect other components to connect the first flow channel 110 and the second flow channel 120 to the outside or the filter cavity. More specifically, the first interface portion 111 and the second interface portion 122 expand outward relative to the first flow channel 110 and the second flow channel 120, so that the inlay pin can be easily removed from the first interface portion 111 and the second interface portion 122 during demolding.

[0072] In some embodiments of the present utility model, in combination with Figure 2 , the outer diameter of the flange 20 is not less than twice the outer diameter of the skeleton main body 10. In other words, the radial dimension of the flange 20 is greater than the radial dimension of the skeleton main body 10. In this way, filter media can be placed between the flange 20 and the skeleton main body 10, and the fact that the outer diameter of the flange 20 is not less than twice the outer diameter of the skeleton main body 10 can increase the placement space of the filter media. For example, the outer diameter dimension of the flange 20 is twice the outer diameter dimension of the skeleton main body 10. Of course, it can also be three times or four times. In actual application, reasonable arrangement can be made according to the size or filtration requirements of the filter element assembly 1000.

[0073] In combination with Figures 3 to 5 , the filter element assembly 1000 according to some embodiments of the present utility model includes: a housing 200 and the aforementioned skeleton device 100. The skeleton main body 10 is disposed inside the housing 200, and the flange 20 axially divides the first accommodation cavity 210 and the second accommodation cavity 220 inside the housing 200. That is to say, the flange 20 provided on the skeleton device 100 can divide two filter cavities inside the housing 200, which can reduce the internal components of the filter element assembly 1000, facilitate the simplification of the structure of the filter element assembly 1000, and is convenient for manufacturing and assembly.

[0074] In some embodiments of the present utility model, in combination with Figure 3 , the filter element assembly 1000 further includes an inner cylinder 300. The inner cylinder 300 is sleeved inside the housing 200. The inner cylinder 300 has a closed side and an open side. The flange 20 has a first side and a second side opposite to each other. The first side of the flange 20 is sealingly connected to the open side of the inner cylinder 300 to construct the first accommodation cavity 210; the second side of the flange 20 is sealingly connected to the open side of the inner cylinder 300 to construct the second accommodation cavity 220. Specifically, at least a part of the outer wall of the inner cylinder 300 is sealingly connected to the inner wall of the housing 200. For example, the outer wall of the open side of the inner cylinder 300 is sealingly connected to the inner wall of the housing 200, that is, a cavity is constructed between the inner cylinder 300 and the housing 200. The flange 20 is connected to the inner wall of the open side of the inner cylinder 300, and the cavity can be divided into the first accommodation cavity 210 and the second accommodation cavity 220. Among them, the first side surface 21 faces the first accommodation cavity 210, and the second side surface 22 faces the second accommodation cavity 220.

[0075] More specifically, the inner wall of the open side of the inner cylinder 300 is provided with a matching portion 310. In combination with the foregoing, the flange 20 has a first convex structure 211. The first convex structure 211 is disposed on the side close to the outer peripheral surface 23 to be adapted to face the matching portion 310, and the matching portion 310 is sealingly connected to the first convex structure 211.

[0076] In some embodiments of the present utility model, in combination with Figure 3, the first convex structure 211 constructs a first stepped structure, and the mating part 310 constructs a second stepped structure. The second stepped structure overlaps on the first stepped structure, which can increase the contact area at the connection between the flange 20 and the inner cylinder 300, and can improve the connection tightness and the stability after connection.

[0077] In some embodiments of the present invention, the inner wall of the first convex structure 211 is provided with reinforcing ribs to increase the structural strength of the first convex structure 211, thereby enhancing the structural stability after connection.

[0078] Combined Figure 3 , in some embodiments of the present invention, the filter element assembly 1000 further includes a first filter medium 410. The first filter medium 410 is disposed in the first accommodating cavity 210, can play a filtering role in the first accommodating cavity 210, and surrounds the outer side of the skeleton body 10. One end of the first filter medium 410 abuts against the first side of the flange 20. Thus, the flange 20 can not only play a role in separating the chambers, but also provide support for the filter medium. Further, the flange 20 can also play an effect of limiting the first filter medium 410. Specifically, in combination with the foregoing, the first filter medium 410 can be placed in the first placement groove formed between the first convex structure 211 and the third convex structure 212.

[0079] In some embodiments of the present invention, the filter element assembly 1000 further includes a second filter medium 420. The second filter medium 420 is disposed in the second accommodating cavity 220, can play a filtering role in the second accommodating cavity 220, and surrounds the outer side of the skeleton body 10. One end of the second filter medium 420 abuts against the second side of the flange 20. Thus, the flange 20 can not only play a role in separating the chambers, but also provide support for the filter medium. Further, the cooperation between the flange 20 and the inner cylinder 300 can play an effect of limiting the second filter medium 420. Specifically, in combination with the foregoing, the second filter medium 420 can be placed in the second placement groove formed between the inner wall of the inner cylinder 300 and the second convex structure 221.

[0080] The first filter medium 410 can be disposed in the first accommodating cavity 210 and separate the first cavity 201 and the second cavity 202 in the first accommodating cavity 210. A dispersion filter medium can be provided in the first cavity 201, and the first filter medium 410 can be set in a columnar shape or other shapes. Among them, the dispersion filter medium refers to a filter medium with a dispersed structure. For example, the dispersion filter medium can be set in a form with an unfixed structure. For example, the dispersion filter medium can be set in a powdery form, a granular form, etc. The dispersion filter medium with a set mesh number, a set material, etc. can be selected according to actual filtration requirements, and the present invention does not limit this.

[0081] The filter element assembly 1000 further includes: a first end cap 510, which is connected to the framework device 100, communicates with the second flow channel 120, and forms a third flow channel 130 communicating with the second chamber 202 between the first end cap 510 and the inner cylinder 300. The communication between the second flow channel 120 of the framework device 100 and the second chamber 202 can be realized through the first end cap 510, which is convenient for guiding the fluid to flow from the framework device 100 into the second chamber 202, can optimize the pipeline, and is convenient for filtering the fluid.

[0082] The first end cap 510 includes a pipe portion and a cover portion. The third flow channel 130 is formed between the cover portion and the inner cylinder 300. The pipe portion passes through the framework device 100 and communicates the second flow channel 120 and the third flow channel 130. The communication between the second flow channel 120 of the framework device 100 and the second chamber 202 can be realized through the first end cap 510, which is convenient for guiding the fluid to flow from the framework device 100 into the second chamber 202, can optimize the pipeline, and is convenient for filtering the fluid.

[0083] The second filter medium 420 is arranged inside the housing 200, and the fourth chamber 204 is arranged between the second filter medium 420 and the housing 200. Wherein, the housing 200 can form a second accommodation chamber 220 with the pipeline flow channel. The second filter medium 420 can be arranged in the second accommodation chamber 220, and the third chamber 203 and the fourth chamber 204 are separated in the second accommodation chamber 220. A dispersion filter medium can be arranged in the third chamber 203. The second filter medium 420 can be set in a columnar shape or other shapes.

[0084] The filter element assembly 1000 further includes a second end cap 520. The flange 20 and the second end cap 520 are opposite along the axial direction of the framework device 100. Positioning grooves 105 surrounding the framework device 100 are provided on the side of the flange 20 facing the second end cap 520 and the side of the second end cap 520 facing the flange 20. The two ends of the second filter medium 420 are respectively positioned in the positioning grooves 105, so as to realize the positioning of the second filter medium 420. At the same time, the third chamber 203 and the fourth chamber 204 are separated, so that the fluid can be filtered through the first filter medium 410.

[0085] According to the filtration system of the embodiment of the present invention, including the framework device 100 of the filter element assembly 1000 described above or the filter element assembly 1000 described above, it is convenient for manufacturing and helps to simplify the structure of the filtration system.

[0086] It should be noted that the aforementioned axial direction can refer to Figure 3 the up and down direction in Figure 3 and the aforementioned radial direction can refer to

[0087] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0088] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0089] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0090] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be 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, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0091] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present 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 can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0092] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A skeleton device of a filter element assembly, characterized in that: include: A skeleton body, wherein at least one flow channel is provided in the skeleton body; The flange is arranged on the outside of the skeleton body and is arranged around the skeleton body. The skeleton body and the flange are formed in one piece.

2. The skeleton device of the filter element assembly according to claim 1, characterized in that: The flange divides the skeleton body into a first part and a second part along the axial direction, and the inlet and the outlet of the flow channel are respectively located in the first part and the second part.

3. The skeleton device of the filter element assembly according to claim 2, characterized in that: The at least one flow channel comprises a first flow channel, a circumferential surface of the first part is provided with a first opening connected to the first flow channel, and an end surface of the second part is provided with a third opening connected to the first flow channel; and / or The at least one flow channel includes a second flow channel, a second opening communicating with the second flow channel is provided on a circumferential surface of the second portion, and a fourth opening communicating with the second flow channel is provided on an end surface of the first portion.

4. The skeleton device of the filter element assembly according to claim 3, characterized in that: The skeleton body has a first end and a second end relative to each other, and 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; 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.

5. The skeleton device of the filter element assembly according to claim 2, characterized in that: The first portion and the second portion extend along a straight line; and / or The first portion is in a circular tubular shape; and / or The second portion is in the shape of a circular tube; and / or A ratio of the length of the second portion to the length of the first portion is no greater than 3.

6. The skeleton device of the filter element assembly according to claim 1, characterized in that: The flange has a first side surface and a second side surface opposite to each other, and the first side surface is provided with a first protruding structure surrounding the skeleton body.

7. The skeleton device of the filter element assembly according to claim 6, characterized in that: The inner side surface of the first protrusion structure faces the skeleton body and gradually expands outward in a direction away from the first side surface; And / or, the outer side surface of the first protruding structure faces away from the skeleton body and gradually shrinks inward in a direction away from the first side surface.

8. The skeleton device of the filter element assembly according to claim 6, characterized in that: The first side surface is provided with a third protruding structure surrounding the skeleton body, and the third protruding structure is provided on the inner side of the first protruding structure.

9. The skeleton device of the filter element assembly according to claim 1, characterized in that: The flange has a first side surface and a second side surface opposite to each other. The second side surface is provided with a second protruding structure surrounding the skeleton body. The second protruding structure is spaced apart from the outer periphery of the flange.

10. The skeleton device of the filter element assembly according to claim 9, characterized in that: The outer peripheral surface of the second protrusion structure gradually shrinks inward in a direction away from the second side surface.

11. The skeleton device of the filter element assembly according to claim 6, characterized in that: The flange has an outer peripheral surface on a side away from the skeleton body, the outer peripheral surface connects the first side surface and the second side surface, and the outer peripheral surface is provided with a flange, and the flange extends in the radial direction.

12. The skeleton device of the filter element assembly according to any one of claims 1 to 8, characterized in that: The outer diameter of the flange is not less than 2 times the outer diameter of the skeleton body; and / or The skeleton body has a first flow channel and a second flow channel, and the first flow channel and the second flow channel are separated from each other in the skeleton body.

13. A filter element assembly, characterized in that: include: case, According to the skeleton device of the filter element assembly according to any one of claims 1 to 12, the skeleton body is arranged in the shell; the flange separates the first accommodating cavity and the second accommodating cavity along the axial direction in the shell.

14. The filter element assembly according to claim 13, characterized in that: It also includes an inner cylinder, which is sleeved in the shell, the inner cylinder has a closed side and an open side, the flange has a first side and a second side opposite to each other, the first side of the flange is sealed and connected to the open side of the inner cylinder to construct the first accommodating chamber; the second side of the flange is sealed and connected to the open side of the inner cylinder to construct the second accommodating chamber.

15. The filter element assembly according to claim 13, characterized in that: include: A first filter material, which is disposed in the first accommodating cavity and surrounds the outer side of the skeleton body, and one end of the first filter material abuts against the first side of the flange; The second filter material is arranged in the second accommodating cavity and surrounds the outer side of the skeleton body, and one end of the second filter material abuts against the second side of the flange.

16. A filtering system, characterized in that: A skeleton device comprising a filter element assembly according to any one of claims 1-12; or a filter element assembly according to any one of claims 13-15.

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