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

Abstract

The utility model discloses a skeleton device of filter element subassembly, filter element subassembly and filtration system.The skeleton device comprises a skeleton main body, the skeleton main body is integrally formed, the skeleton main body is provided with a first flow channel and a second flow channel, and the first flow channel and the second flow channel are mutually separated in the skeleton main body; at least a portion of the first flow channel and at least a portion of the second flow channel are arranged side by side. According to the framework device of the filter element assembly, the first flow channel and the second flow channel which are separated from each other and are arranged side by side are constructed in the framework main body, so that the structural compactness of the framework main body can be improved, the water inlet flow channel and the water outlet flow channel can be integrated in the framework main body, and the framework main body is integrally formed; manufacturing and assembling can be facilitated, and the structure of the filter element assembly can be simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a skeleton device, a filter element component with the skeleton device and a filtering system with the skeleton component or the filter element component. 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 art, the pre-filter element assembly and the post-filter element assembly of the water purifier are separately arranged, which can 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 more complicated to operate. 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 related art, the upper and lower composite of the pre-filter and post-filter elements usually requires multiple components to isolate the flow channel. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide a skeleton device with an integrally formed skeleton body.

[0004] Another object of the present invention is to provide a filter element assembly, comprising the aforementioned skeleton device.

[0005] Another object of the present invention is to provide a filtering system, including the aforementioned filter element assembly.

[0006] According to the skeleton device of the filter element assembly of the embodiment of the utility model, it includes a skeleton body, which is integrally formed and has a first flow channel and a second flow channel. The first flow channel and the second flow channel are separated from each other in the skeleton body, and at least a portion of the first flow channel and at least a portion of the second flow channel are arranged side by side.

[0007] According to the skeleton device of the filter element assembly of the embodiment of the utility model, by constructing a first flow channel and a second flow channel separated from each other in the skeleton body, at least a part of the first flow channel and at least a part of the second flow channel are arranged side by side, so that the structural compactness of the skeleton body can be improved, and the water inlet flow channel and the water outlet flow channel can be integrated into the skeleton body. The skeleton body is integrally formed, which can be easy to manufacture and assemble, and is conducive to simplifying the structure of the filter element assembly.

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

[0009] In some examples of the present invention, the first flow channel and the second flow channel extend along a straight line.

[0010] In some examples of the present invention, the skeleton body has a first end and a second end opposite to each other, the end surface of the first end is provided with a first opening connected to the first flow channel, and the end surface of the second end is provided with a second opening connected to the second flow channel.

[0011] In some examples of the present invention, 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.

[0012] In some examples of the present invention, a first joint is provided at the first end of the skeleton body, the first opening is provided at the first joint, and the first joint extends out of the second flow channel; or, a second joint is provided at the second end of the skeleton body, the second opening is provided at the second joint, and the second joint extends out of the first flow channel.

[0013] In some examples of the present invention, the first joint is configured to cover at least a portion of the first flow channel and the second flow channel along the projection of the axial direction of the skeleton body; or, the second joint is configured to cover at least a portion of the first flow channel and the second flow channel along the projection of the axial direction of the skeleton body.

[0014] In some examples of the present invention, the first joint is configured to be a circular tube; or the second joint is configured to be a circular tube.

[0015] In some examples of the present invention, the outer peripheral surface of the skeleton body is provided with a third opening connected to the first flow channel and a fourth opening connected to the second flow channel.

[0016] In some examples of the present invention, the third opening is provided at the second end of the skeleton body, and the fourth opening is provided at the first end of the skeleton body.

[0017] In some examples of the present invention, at least a portion of the first flow channel and at least a portion of the second flow channel are arranged side by side.

[0018] In some examples of the present invention, the skeleton body is configured as a long strip, and the first flow channel and the second flow channel extend along the axial direction of the skeleton body.

[0019] In some examples of the present invention, the first flow channel includes a first slender portion, the second flow channel includes a second slender portion, the first slender portion and the second slender portion are arranged side by side, and the length of the first slender portion is not greater than 300 mm.

[0020] In some examples of the present invention, the length dimension of the second elongated portion is no greater than 300 mm.

[0021] In some examples of the present invention, the cross-sectional area of ​​the first elongated portion is not less than 30 square millimeters.

[0022] In some examples of the present invention, a cross-sectional area of ​​the second elongated portion is not less than 30 square millimeters.

[0023] In some examples of the present invention, the cross-sectional area of ​​the first elongated portion and the cross-sectional area of ​​the second elongated portion are the same or different.

[0024] In some examples of the present invention, the first elongated portion is configured to be semicircular.

[0025] In some examples of the present invention, the second elongated portion is configured to be semicircular.

[0026] In some examples of the present invention, at least one of the first slender portion and the second slender portion meets the following requirements: a length greater than 150 mm and a channel cross-sectional area greater than 40 square millimeters.

[0027] In some examples of the present invention, at least one of the first slender portion and the second slender portion satisfies: when the length is greater than 250 mm, the channel cross-sectional area is greater than 50 square millimeters.

[0028] In some examples of the present invention, the cross-sectional area of ​​the elongated end of the channel is less than 100 square millimeters.

[0029] In some examples of the present invention, the first flow channel further includes a first interface portion, and the second flow channel further includes a second interface portion, the first interface portion is connected to the first slender portion and expands outward relative to the first slender portion, and the second interface portion is connected to the second slender portion and expands outward relative to the second slender portion.

[0030] In some examples of the present invention, the first slender portion and the second slender portion are symmetrically distributed along the axial direction, or the first slender portion and the second slender portion are asymmetrically distributed along the axial direction.

[0031] In some examples of the utility model, the outer peripheral surface of the skeleton body is provided with a third opening connected to the first flow channel and a fourth opening connected to the second flow channel, and the skeleton body performs mold parting or mold closing at the third opening and the fourth opening, and forms a parting line at the parting.

[0032] According to the filter element assembly of the utility model, it includes: a shell, an inner tube, the aforementioned skeleton device and a first filter material, the skeleton device is arranged in the shell, one of the first flow channel and the second flow channel is connected to the water inlet, and the other is connected to the water outlet; the first filter material is arranged around the outer periphery of the skeleton body, a first cavity is provided between the first filter material and the skeleton device, a second cavity is provided between the first filter material and the inner tube, the first flow channel is connected to the first cavity, and the second flow channel is connected to the second cavity.

[0033] According to the filter element assembly of the utility model, the water inlet flow channel and the water outlet flow channel can be integrated on the same skeleton device and communicated with the first cavity and the second cavity, which can improve the filtering effect and help simplify the structure of the filter element assembly.

[0034] In some examples of the present invention, the filter element assembly further includes: a first end cover, the first end cover is connected to the skeleton device, and is in communication with the second flow channel, and a third flow channel in communication with the second cavity is constructed between the first end cover and the inner cylinder.

[0035] In some examples of the present invention, the first end cover includes a tube portion and a cover portion, the third flow channel is constructed between the cover portion and the inner tube, the tube portion passes through the skeleton device and connects the second flow channel and the third flow channel.

[0036] The filtering system according to the embodiment of the utility model includes the aforementioned skeleton device of the filter element assembly or the aforementioned filter element assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a cross-sectional view of the skeleton device in some embodiments of the utility model;

[0038] Figure 2 It is a schematic diagram of the structure of the skeleton device in some embodiments of the utility model;

[0039] Figure 3 is a cross-sectional view of the skeleton device in some embodiments of the utility model (showing the first elongated portion, the second elongated portion, the first interface portion and the second interface portion);

[0040] Figure 4 is a cross-sectional view of the skeleton device in some embodiments of the utility model (showing the first side wall, the second side wall and the middle wall);

[0041] Figure 5 is a schematic diagram of the structure of the skeleton device in some embodiments of the utility model (showing the third opening and the parting line);

[0042] Figure 6 is a schematic diagram of the structure of the skeleton device in some embodiments of the utility model (showing the fourth opening and the parting line);

[0043] Figure 7 is a cross-sectional view of a filter element assembly according to an embodiment of the utility model;

[0044] Figure 8 is a cross-sectional view of a filter element assembly according to an embodiment of the utility model, wherein the flow direction of the fluid in the first accommodating chamber is shown;

[0045] Fig. 9 It is a cross-sectional view of a filter element assembly according to an embodiment of the utility model, which shows the flow direction of the fluid in the second accommodating chamber.

[0046] Reference numerals:

[0047] 100, skeleton device; 10, skeleton body; 110, first flow channel; 120, second flow channel; 130, third flow channel; 101, first opening; 102, second opening; 11, first joint; 12, second joint; 103, third opening; 104, fourth opening; 111, first slender portion; 112, second slender portion; 113, first interface portion; 114, second interface portion; 115, first side wall; 116, second side wall; 118, middle wall; 20, flange; 200, shell; 201, first cavity; 202, second cavity; 203, third cavity; 204, fourth cavity; 210, first accommodating cavity; 220, second accommodating cavity; 300, inner cylinder; 410, first filter material; 420, second filter material; 510, first end cover; 520, second end cover; 1000, filter element assembly. DETAILED DESCRIPTION

[0048] 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.

[0049] Combination Figure 1 and Figure 2 According to the skeleton device 100 of the filter element assembly 1000 of the embodiment of the utility model, it includes a skeleton body 10, 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. 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 integral structure, and the two flow channels can be integrated into the same component, that is, the skeleton body 10, which can be easy to manufacture and assemble, and is conducive to simplifying the structure of the filter element assembly 1000, and is conducive to increasing the filling space of the filter material in the filter element assembly 1000, thereby helping to improve the filtering effect.

[0050] Specifically, 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 filtering space from the water inlet flow channel for filtration and then flow out from the water outlet flow channel after filtration.

[0051] According to the skeleton device 100 of the filter element assembly 1000 of the embodiment of the utility model, the water inlet channel and the water outlet channel can be integrated into the skeleton body 10 by constructing a first flow channel 110 and a second flow channel 120 separated from each other in the skeleton body 10, and the skeleton body 10 is integrally formed, which can be convenient for manufacturing and assembly, and is conducive to simplifying the structure of the filter element assembly 1000.

[0052] In some embodiments of the present invention, Figure 1 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 is an inlay pin in the mold, and the side-by-side arrangement can also reduce the difficulty of demolding the inlay pin, 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.

[0053] 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.

[0054] Combination Figure 1 In some embodiments of the present invention, the skeleton body 10 has a first end and a second end opposite to each other, and the end surface of the first end is provided with a first opening 101 connected to the first flow channel 110, and the end surface of the second end is provided with a second opening 102 connected to the second flow channel 120. In other words, the first opening 101 of the first flow channel 110 and the second opening 102 of the second flow channel 120 are located at different ends of the skeleton body 10, so that during demolding, the insert pin in the first flow channel 110 can be removed from the first opening 101 at the first end of the skeleton component; the insert pin in the second flow channel 120 can be removed from the second opening 102 at the second end of the skeleton component, and the two insert pins will not interfere with each other during demolding, which is convenient for demolding.

[0055] Further, in some embodiments of the utility model, at least a portion of the inner circumference of the first flow channel 110 is configured as a slope that gradually expands outward in the direction from the second end to the first end. At least a portion of the inner circumference of the second flow channel 120 is configured as a slope that gradually expands outward in the direction from the first end to the second end. Specifically, in combination with the above, when the insert pin is demolded from the first flow channel 110, the insert pin can be removed from the first end, therefore, at least a portion of the inner circumference of the first flow channel 110 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 120, it can be removed from the second end, therefore, at least a portion of the inner circumference of the second flow channel 120 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 110 may be an inclined surface that gradually expands from the second end to the first end, or the inner circumference of the first flow channel 110 may be a straight line and an inclined surface, and the position near the first end is inclined, that is, the position near the demolding is inclined. Similarly, the inner circumference of the second flow channel 120 may be an inclined surface that gradually expands from the first end to the second end, or the inner circumference of the second flow channel 120 may be a straight line and an inclined surface, and the position near the second end is inclined.

[0056] 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.

[0057] Furthermore, combined with Figure 1 In some embodiments of the present invention, the first end of the skeleton body 10 is provided with a first joint 11, the first opening 101 is provided at the first joint 11, and the first joint 11 extends out of the second flow channel 120. Specifically, the first joint 11 extends out of the second flow channel 120, so that the first joint 11 can be connected to the filter element assembly 1000 alone, or in other words, the first joint 11 can facilitate the connection of the first end of the skeleton body 10 with the filter element assembly 1000.

[0058] The second end of the skeleton body 10 is provided with a second joint 12, the second opening 102 is provided at the second joint 12, and the second joint 12 extends out of the first flow channel 110. The second joint 12 extends out of the first flow channel 110, so that the second joint 12 can be connected to the filter element assembly 1000 alone, or in other words, the second joint 12 can facilitate the connection of the second end of the skeleton body 10 with the filter element assembly 1000.

[0059] Combination Figure 1In some embodiments of the present invention, the first joint 11 is configured to cover at least a portion of the first flow channel 110 and the second flow channel 120 along the axial direction of the skeleton body 10. In this way, the first joint 11 can be located in the axial direction of the skeleton body 10, thereby facilitating the assembly of the skeleton body 10.

[0060] The second joint 12 is configured to cover at least a portion of the first flow channel 110 and the second flow channel 120 along the axial direction of the skeleton body 10 , so that the second joint 12 can be located in the axial direction of the skeleton body 10 , thereby facilitating the assembly of the skeleton body 10 .

[0061] More specifically, in some embodiments of the present invention, the first joint 11 and the second joint 12 are both arranged in the axial direction of the skeleton body 10, or the first joint 11 and the second joint 12 are coaxially connected along the axial direction of the skeleton body 10, thereby facilitating the assembly of the skeleton body 10, and the skeleton body 10 can also be rotated after assembly.

[0062] In some embodiments of the utility model, the first joint 11 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 11, 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 11, and the sealing ring can be placed in the groove to achieve a sealing effect during assembly. Optionally, the second joint 12 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 12 cooperates with other components to improve the tightness of the connection. For example, the end cover in the filter element assembly 1000 can extend into the second joint 12 and cooperate with the second joint 12, 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 12, thereby improving the tightness of the connection.

[0063] Combination Figure 1 and Figure 2 In some embodiments of the present invention, the outer peripheral surface of the skeleton body 10 is provided with a third opening 103 connected to the first flow channel 110 and a fourth opening 104 connected to the second flow channel 120, thereby, the skeleton body 10 can construct two independent flow channels, and the first opening 101 and the third opening 103 of the skeleton body 10 are the water inlet and the water outlet of the first flow channel 110; the second opening 102 and the fourth opening 104 of the skeleton body 10 are the water inlet and the water outlet of the second flow channel 120. When used, water can enter the second flow channel 120 from the second opening 102 and flow out from the fourth opening 104, and after being filtered, enter the first flow channel 110 from the third opening 103 and then flow out from the fourth opening 104.

[0064] In some embodiments of the present invention, the third opening 103 is provided at the second end of the skeleton body 10, and the fourth opening 104 is provided at the first end of the skeleton body 10. That is to say, the third opening 103 and the fourth opening 104 are respectively located at opposite ends of the skeleton body 10, which can extend the water flow path, optimize the water flow path, and improve the filtering effect. Specifically, the first opening 101 and the third opening 103 are respectively provided at the first end and the second end of the skeleton body 10, and the water flow can flow from the second end to the first end after entering the first flow channel 110; the second opening 102 and the fourth opening 104 are respectively provided at the second end and the first end of the skeleton body 10, and the water flow can flow from the first end to the second end after entering the second flow channel 120.

[0065] Combination Figure 1 and Figure 2 In some embodiments of the present invention, the skeleton body 10 is configured as a long strip, and the first flow channel 110 and the second flow channel 120 extend along the axial direction of the skeleton body 10, which can increase the time for water to flow in the skeleton body 10 and facilitate full utilization of the space in the filter element assembly 1000.

[0066] In some embodiments of the present invention, Figure 3 The first flow channel 110 includes a first elongated portion 111, and the second flow channel 120 includes a second elongated portion 112. The first elongated portion 111 and the second elongated portion 112 are arranged side by side, wherein the length of the first elongated portion 111 is not greater than 300 mm, and the length of the second elongated portion 112 is not greater than 300 mm. Figure 3 The length of the first slender portion 111 is L1, and the length of the second slender portion 112 is L2. For example, L1 may be 300 mm, and L2 may also be 300 mm, that is, the sizes of L1 and L2 may be the same or different.

[0067] The length of the first elongated portion 111 and the second elongated portion 112 largely determines the size of the flow channel. In the manufacturing process of the skeleton body 10, the longer the length of the first elongated portion 111 and the second elongated portion 112, the thinner the mold insert pins used to construct the first flow channel 110 and the second flow channel 120 are, and the thin insert pins are easily bent or even broken during the manufacturing process, which also increases the difficulty of demolding. Therefore, the first elongated portion 111 and the second elongated portion 112 are arranged side by side, which can facilitate demolding, and the length of the first elongated portion 111 and the second elongated portion 112 is not greater than 300 mm. In actual production, after testing, when the length of the elongated portion is greater than 300 mm, it may lead to a low manufacturing accuracy or yield rate of the skeleton device 100. In addition, the length of the elongated portion is not greater than 300 mm, which can cover most of the filter elements of household water purification. Therefore, the length of the elongated portion is not greater than 300 mm, which can be manufactured using an integrated molding manufacturing process and is practical.

[0068] For example, the size of the first elongated portion 111 may be 200 mm, 250 mm, or 300 mm, etc., and the size of the second elongated portion 112 may be 200 mm, 250 mm, or 300 mm, etc.

[0069] In some embodiments of the utility model, the cross-sectional area of ​​the first elongated portion 111 is not less than 30 square millimeters. The cross-sectional area of ​​the second elongated portion 112 is not less than 30 square millimeters. Specifically, the cross-sectional areas of the first elongated portion 111 and the second elongated portion 112 determine the water flow rate and whether the elongated portion can be manufactured using an integrated manufacturing process. Specifically, when the cross-sectional area of ​​the first elongated portion 111 and the second elongated portion 112 is less than 30 square millimeters or the cross-sectional area of ​​the elongated portion is small, the mold insert pin will be thinner during manufacturing, and the thinner insert pin is also prone to deformation or breakage due to stress, thereby reducing the yield rate. According to actual tests, when the cross-sectional area of ​​the first elongated portion 111 is greater than 30 square millimeters and the cross-sectional area of ​​the second elongated portion 112 is greater than 30 square millimeters, the water flow rate can be guaranteed and the insert pin can be prevented from being deformed or broken, thereby being easy to demold and convenient to manufacture. For example, the cross-sectional area of ​​the first elongated portion 111 can be 35 square millimeters, 40 square millimeters, 45 square millimeters or 50 square millimeters. The cross-sectional area of ​​the second elongated portion 112 can be 35 square millimeters, 40 square millimeters, 45 square millimeters or 50 square millimeters, etc. In practical applications, the size of the skeleton device 100 or the size of the filter element assembly 1000 or the water purification effect can be selected, and the present invention is not limited thereto.

[0070] In some embodiments of the present invention, the cross-sectional area of ​​the first elongated portion 111 and the cross-sectional area of ​​the second elongated portion 112 may be the same or different, and may be adjusted according to actual usage and actual structure.

[0071] Combination Figure 4 In some embodiments of the present invention, the first elongated portion 111 is configured as a semicircle. The second elongated portion 112 is configured as a semicircle. Specifically, the first elongated portion 111 and the second elongated portion 112 are configured as a semicircle to facilitate water flow, and the first elongated portion 111 and the second elongated portion 112 can be connected to form a circle, which is convenient for manufacturing and application.

[0072] In some embodiments of the present invention, at least one of the first elongated portion 111 and the second elongated portion 112 meets the following requirements: the length is greater than 150 mm, and the channel cross-sectional area is greater than 40 square millimeters. In other embodiments of the present invention, at least one of the first elongated portion 111 and the second elongated portion 112 meets the following requirements: when the length is greater than 250 mm, the channel cross-sectional area is greater than 50 square millimeters.

[0073] That is to say, when the length of the slender portion is long, the cross-sectional area of ​​the channel can be appropriately increased to avoid the slender portion being thin and long, which increases the difficulty of manufacturing. Specifically, the length of the slender portion can be 160 mm, 180 mm or 200 mm, and the cross-sectional area of ​​the channel of the slender portion can be 45 square millimeters, 50 square millimeters, 60 square millimeters, etc.

[0074] The length of the elongated portion may also be 260 mm, 280 mm or 300 mm, and the channel cross-sectional area of ​​the elongated portion may be 60 square millimeters, 70 square millimeters, 80 square millimeters, etc. The first elongated portion 111 and the second elongated portion 112 may have the same length and the same channel cross-sectional area, the same length and different channel cross-sectional areas, different lengths and the same channel cross-sectional areas, or different lengths and different channel cross-sectional areas. When designing and manufacturing, reasonable settings may be made according to actual usage.

[0075] In some embodiments of the present invention, the cross-sectional area of ​​the slender end of the channel is less than 100 square millimeters. This can not only ensure the water flow rate in the channel, but also avoid the problem of occupying too much space due to the large cross-sectional area of ​​the channel, which is conducive to achieving the compactness of the skeleton device 100 and improving the space utilization in the filter element assembly 1000.

[0076] In some embodiments of the utility model, the first elongated portion 111 and the second elongated portion 112 are symmetrically distributed along the axial direction, which can facilitate manufacturing. For example, at least a portion of the first elongated portion 111 and the second elongated portion 112 are both semicircular, and the first elongated portion 111 and the second elongated portion 112 are connected to form a circle. Alternatively, the first elongated portion 111 and the second elongated portion 112 are asymmetrically distributed along the axial direction, which can flexibly arrange the space in the filter element assembly and increase the filter material space by using the gap.

[0077] Optionally, combined Figure 4 The skeleton body includes a first side wall 115, a second side wall 116 and a middle wall 117. The first side wall 115 and the second side wall 116 are respectively connected to the opposite sides of the middle wall 117. A first flow channel 110 is formed between the first side wall 115 and the middle wall 117, and a second flow channel 120 is formed between the second side wall 116 and the middle wall 117. The first side wall 115 and the second side wall 116 are set to arcs with different radii. Figure 4 , the first side wall 115 and the second side wall 116 are asymmetrically distributed with respect to the middle wall 117. When the first side wall 115 and the second side wall 116 are asymmetrical, for example, the space occupied by the first side wall 115 is smaller than that of the second side wall 116, the increased space of the first side wall 115 compared with the second side wall 116 can be used to place filter materials to improve the filtering effect. More specifically, since the space may be irregular, it may not be possible to place columnar filter materials, and this part of the space can be used to set dispersed filter materials with a non-fixed structure, so that the space can be fully utilized to improve the filtering effect.

[0078] Alternatively, the first side wall 115 and the second side wall 116 are symmetrically distributed about the middle wall 117. Specifically, the first side wall 115 is set to be semicircular, and the second side wall 116 is set to be semicircular. The first side wall 115 and the second side wall 116 cooperate to form a circle, which can be easy to manufacture, and the first side wall 115 and the second side wall 116 have the same size, and the flow rates of the first flow channel 110 and the second flow channel 120 can also be substantially the same.

[0079] In some embodiments of the utility model, the arch height of the first side wall 115 is H1, and the arch height of the second side wall 116 is H2, H1>H2; the radius of the first side wall 115 is R1, and the radius of the second side wall 116 is R2, R1<R2. That is to say, compared with the second side wall 116, the arch height of the first side wall 115 is higher and the radius is smaller, while the arch height of the second side wall 116 is lower and the radius is larger, thereby making the fluid flow of the first flow channel 110 and the second flow channel 120 substantially the same, specifically, it can be adjusted according to the actual size so that the flow of the first flow channel and the second flow channel is substantially the same. In this way, when the skeleton device is applied to the filter element assembly, the space occupied by the first slender part is smaller than that of the second slender part, thereby increasing the space around the first slender part, 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 115 is not less than 4.5 mm; the arch height of the second side wall 116 is not less than 3.5 mm.

[0080] Optionally, the arch height of the first side wall 115 is H1, the arch height of the second side wall 116 is H2, H1 = H2; the radius of the first side wall 115 is R1, the radius of the second side wall 116 is R2, R1 = R2. For example, the arch height of the first side wall 115 is equal to the arch height of the second side wall 116, and is not less than 4 mm.

[0081] Optionally, the inscribed circle diameter of the first side wall 115 may be greater than 7 mm, and the inscribed circle diameter of the second side wall 116 may be 12 mm or 15 mm. Alternatively, the inscribed circle diameters of the first side wall 115 and the second side wall 116 may be equal and not less than 9 mm.

[0082] 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.

[0083] In some embodiments of the present invention, Figure 3 The first flow channel 110 further includes a first interface portion 113, and the second flow channel 120 further includes a second interface portion 114. The first interface portion 113 is connected to the first slender portion 111 and expands outward relative to the first slender portion 111. The second interface portion 114 is connected to the second slender portion 112 and expands outward relative to the second slender portion 112. Specifically, the first interface portion 113 and the second interface portion 114 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 113 and the second interface portion 114 expand outward relative to the first slender portion 111 and the second slender portion 112. When demolding, the insert pin can be removed from the first interface portion 113 and the second interface portion 114. The first interface portion 113 and the second interface portion 114 are large in size and easy to demold.

[0084] In some embodiments of the present invention, Figure 5 The outer peripheral surface of the skeleton body 10 is provided with a third opening 103 connected to the first flow channel 110 and a fourth opening 104 connected to the second flow channel 120. The skeleton body 10 performs mold parting or mold closing at the third opening 103 and the fourth opening 104, and forms a parting line at the parting position (see Figure 5 and Figure 6AA in the figure). Specifically, during the manufacturing process of the skeleton body 10, the first mold and the second mold are closed along the radial direction of the skeleton body 10, and two insert pins for flow channel molding are arranged in the cavity between the first mold and the second mold. The two insert pins are arranged side by side, and the skeleton body 10 and the first flow channel 110 and the second flow channel 120 of the skeleton body 10 are formed by injection molding into the cavity between the first mold and the second mold. The positions where the first mold and the second mold are parted or closed are set at the third opening 103 and the fourth opening 104. In this way, the first mold and the second mold are both set at the third opening 103 and the fourth opening 104. When the first mold and the second mold are demolded from both sides of the parting line, the forces in the two directions can offset each other, which can reduce the pressure exerted by the mold on the insert pins. As a result, the insert pins will not be deformed, thereby damaging the structure of the skeleton body 10. For example, after the skeleton body 10 is demolded at the parting line, the insert pin is not subjected to stress and its shape does not change. After the insert pin is demolded, the two flow channels are independent of each other, which prevents the insert pin from damaging the flow channel and causing water flow between the two flow channels, thereby improving the quality of the finished product and the yield rate. On the contrary, if one of the first mold or the second mold completely covers the opening, the mold may squeeze the insert pin during demolding, causing the insert pin to deform, and the deformation of the insert pin may damage the flow channel structure and reduce the yield rate.

[0085] Combination Figure 7 and Figure 8 According to the filter element assembly 1000 of the utility model, it includes: a shell 200, an inner tube 300, the aforementioned skeleton device 100 and a first filter material 410. Specifically, the skeleton device 100 is arranged in the shell 200, one of the first flow channel 110 and the second flow channel 120 is connected to the water inlet, and the other is connected to the water outlet; the first filter material 410 is arranged around the outer periphery of the skeleton body 10, a first cavity 201 is provided between the first filter material 410 and the skeleton device 100, a second cavity 202 is provided between the first filter material 410 and the inner tube 300, the first flow channel 110 is connected to the first cavity 201, and the second flow channel 120 is connected to the second cavity 202. Specifically, water can enter the second flow channel 120 from the water inlet, and then enter the second cavity 202 connected to the second flow channel 120. The water in the second cavity 202 enters the first cavity 201 after being filtered by the first filter material 410, and then is discharged from the first flow channel 110 connected to the first cavity 201 to achieve the filtration of the fluid. Through radial filtration, the filtration area can be effectively increased, thereby increasing the flow rate and reducing the size and volume of the filter element assembly 1000. Of course, in the present invention, the first flow channel 110 can also be used as the water inlet flow channel and the second flow channel 120 as the water outlet flow channel, and the present invention does not limit this.

[0086] According to the filter element assembly 1000 of the present invention, the water inlet channel and the water outlet channel can be integrated on the same skeleton device 100 and connected to the first cavity 201 and the second cavity 202, which can improve the filtering effect and help simplify the structure of the filter element assembly.

[0087] More specifically, the peripheral wall of the inner cylinder 300 is arranged around the outer side of the first filter material 410 to construct the second cavity 202, and the first accommodating cavity 210 can be formed between the inner cylinder 300 and the skeleton device 100. The first filter material 410 can be arranged in the first accommodating cavity 210, and the first cavity 201 and the second cavity 202 are separated in the first accommodating cavity 210, and a dispersed filter material can be arranged in the first cavity 201, wherein the first filter material 410 can be arranged in a columnar or other shape. Among them, the dispersed filter material refers to the filter material as a dispersed structure, for example, the dispersed filter material can be set to a form with an unfixed structure, for example, the dispersed filter material can be set to a powder, granular, etc. The dispersed filter material with a set mesh number, set material, etc. can be selected according to the actual filtering requirements, and the utility model does not limit this.

[0088] Combination Figure 6 and Figure 8 In some embodiments of the utility model, the filter element assembly 1000 also includes: a first end cap 510, the first end cap 510 is connected to the skeleton device 100, and is connected to the second flow channel 120, and a third flow channel 130 connected to the second cavity 202 is constructed between the first end cap 510 and the inner cylinder 300. The second flow channel 120 of the skeleton device 100 can be connected with the second cavity 202 through the first end cap 510, which is convenient for guiding the fluid from the skeleton device 100 to flow into the second cavity 202, which can optimize the pipeline and facilitate the filtering of the fluid.

[0089] In some embodiments of the utility model, the first end cover 510 includes a tube portion and a cover portion, and a third flow channel 130 is constructed between the cover portion and the inner cylinder 300. The tube portion is passed through the skeleton device 100 and connects the second flow channel 120 and the third flow channel 130. The first end cover 510 can be used to achieve connection between the second flow channel 120 of the skeleton device 100 and the second cavity 202, which facilitates guiding the fluid from the skeleton device 100 to flow into the second cavity 202, optimizes the pipeline, and facilitates filtering of the fluid.

[0090] Combination Figure 6 and Figure 7The filter element assembly 1000 may also include a flange 20, which is connected to the skeleton device 100 and is opposite to the first end cover 510 along the axial direction of the skeleton device 100. The side of the flange 20 facing the first end cover 510 and the side of the first end cover 510 facing the flange 20 are provided with positioning grooves surrounding the skeleton device 100. The two ends of the first filter material 410 are respectively positioned in the positioning grooves, thereby realizing the positioning of the overall filter material. At the same time, the first filter material 410 separates the first cavity 201 and the second cavity 202, so that the fluid can be filtered through the first filter material 410.

[0091] The filter element assembly 1000 also includes a second filter material 420, which is arranged around the outside of the skeleton device 100. A third cavity 203 is provided between the second filter material 420 and the skeleton device 100. A fourth cavity 204 is provided on the outside of the second filter material 420. The third cavity 203 can be connected to the second flow channel 120. In this way, the fluid can pass into the fourth cavity 204, and after being filtered by the second filter material 420, enter the second flow channel 120, and then be sent to the second cavity 202 through the second flow channel 120, and after being filtered by the first filter material 410 and the dispersed filter material in the first cavity 201, it is sent out from the first flow channel 110 to achieve multi-stage filtration.

[0092] Combination Figure 7 and Fig. 9 The second filter material 420 is disposed inside the housing 200, and the fourth cavity 204 is disposed between the second filter material 420 and the housing 200. The housing 200 may form a second accommodating cavity 220 with the pipeline flow channel, the second filter material 420 may be disposed in the second accommodating cavity 220, and the third cavity 203 and the fourth cavity 204 may be separated in the second accommodating cavity 220, wherein the second filter material 420 may be configured in a columnar shape or other shapes.

[0093] In combination with the aforementioned embodiment, the filter element assembly 1000 may have a first accommodating chamber 210 and a second accommodating chamber 220 , which are separated by a flange 20 .

[0094] The filter element assembly 1000 also includes a second end cover 520, and the flange 20 is opposite to the second end cover 520 along the axial direction of the skeleton device 100. The side of the flange 20 facing the second end cover 520 and the side of the second end cover 520 facing the flange 20 are provided with positioning grooves surrounding the skeleton device 100. The two ends of the second filter material 420 are respectively positioned in the positioning grooves, thereby realizing the positioning of the second filter material 420. At the same time, the third cavity 203 and the fourth cavity 204 are separated so that the fluid can be filtered through the first filter material 410.

[0095] Optionally, the flange 20 and the skeleton device 100 can be a split structure or an integrated structure. Specifically, the flange 20 axially separates the skeleton body 10 into a first part and a second part, so that when demolding, the first mold and the second mold can be separated along the axial direction to construct the first part and the second part. Specifically, during the manufacturing process of the one-piece molding manufacturing process, the first mold and the second mold can be closed along the axial direction of the skeleton body, and when demolding, they are separated at the flange 20, so that the skeleton body 10 extending in the axial direction and the flange 20 extending in the radial direction can be constructed. Further, when the structure of the first part or the second part is more complicated, for example, the first mold or the second mold may include a first half and a second half, and the first half and the second half can be separated in the radial direction of the skeleton body 10.

[0096] The filtering system according to the embodiment of the present invention includes the skeleton device 100 of the aforementioned filter element assembly 1000 or the aforementioned filter element assembly 1000 .

[0097] It should be noted that, combined with Figure 7 , the aforementioned axial direction can refer to Figure 7 The up and down directions in the above mentioned radial direction can refer to Figure 7 The left and right direction in .

[0098] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "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 device or element referred to 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.

[0099] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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 skeleton device of a filter element assembly, characterized in that: It includes a skeleton body, which is integrally formed and has a first flow channel and a second flow channel, the first flow channel and the second flow channel are separated from each other in the skeleton body, and at least a part of the first flow channel and at least a part of the second flow channel are arranged side by side.

2. The skeleton device of the filter element assembly according to claim 1, characterized in that: The first flow channel and the second flow channel extend along a straight line.

3. The skeleton device of the filter element assembly according to claim 1 or 2, characterized in that: The skeleton body has a first end and a second end opposite to each other. The end surface of the first end is provided with a first opening connected to the first flow channel, and the end surface of the second end is provided with a second opening connected to the second flow channel.

4. The skeleton device of the filter element assembly according to claim 3, characterized in that: 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 3, characterized in that: The first end of the skeleton body is provided with a first joint, the first opening is provided at the first joint, and the first joint extends out of the second flow channel; or, the second end of the skeleton body is provided with a second joint, the second opening is provided at the second joint, and the second joint extends out of the first flow channel.

6. The skeleton device of the filter element assembly according to claim 5, characterized in that: The first joint is configured such that its projection along the axial direction of the skeleton body covers at least a portion of the first flow channel and the second flow channel; and / or, the second joint is configured such that its projection along the axial direction of the skeleton body covers at least a portion of the first flow channel and the second flow channel.

7. The skeleton device of the filter element assembly according to claim 6, characterized in that: The first joint is configured as a circular tube; or the second joint is configured as a circular tube.

8. The skeleton device of the filter element assembly according to claim 3, characterized in that: The outer peripheral surface of the skeleton body is provided with a third opening communicating with the first flow channel and a fourth opening communicating with the second flow channel.

9. The skeleton device of the filter element assembly according to claim 8, characterized in that: The third opening is disposed at the second end of the frame body, and the fourth opening is disposed at the first end of the frame body.

10. The skeleton device of the filter element assembly according to claim 1, characterized in that: The skeleton body is configured in a long strip shape, and the first flow channel and the second flow channel extend along the axial direction of the skeleton body.

11. The skeleton device of the filter element assembly according to claim 1, characterized in that: The first flow channel includes a first elongated portion, the second flow channel includes a second elongated portion, the first elongated portion and the second elongated portion are arranged side by side, Among them, the length dimension of the first slender portion is not greater than 300 mm; and / or, the length dimension of the second slender portion is not greater than 300 mm; and / or, the cross-sectional area of ​​the first slender portion is not less than 30 square millimeters; and / or, the cross-sectional area of ​​the second slender portion is not less than 30 square millimeters; and / or, the cross-sectional area of ​​the first slender portion is the same as or different from the cross-sectional area of ​​the second slender portion; and / or, the first slender portion is set to be semicircular; and / or, the second slender portion is set to be semicircular.

12. The skeleton device of the filter element assembly according to claim 11, characterized in that: At least one of the first slender portion and the second slender portion meets the following requirements: the length is greater than 150 mm and the channel cross-sectional area is greater than 40 square millimeters; or, when the length is greater than 250 mm, the channel cross-sectional area is greater than 50 square millimeters.

13. The skeleton device of the filter element assembly according to claim 11, characterized in that: The cross-sectional area of ​​the elongated end of the channel is less than 100 square millimeters.

14. The skeleton device of the filter element assembly according to claim 11, characterized in that: The first flow channel further includes a first interface portion, and the second flow channel further includes a second interface portion. The first interface portion is connected to the first slender portion and expands outward relative to the first slender portion. The second interface portion is connected to the second slender portion and expands outward relative to the second slender portion.

15. The skeleton device of the filter element assembly according to claim 11, characterized in that: The first slender portion and the second slender portion are symmetrically distributed along the axial direction, or the first slender portion and the second slender portion are asymmetrically distributed along the axial direction.

16. The skeleton device of the filter element assembly according to claim 1, characterized in that: The outer peripheral surface of the skeleton body is provided with a third opening connected to the first flow channel and a fourth opening connected to the second flow channel. The skeleton body performs mold parting or mold closing at the third opening and the fourth opening, and forms a parting line at the parting position.

17. A filter element assembly, characterized in that: include: case, Inner tube, The skeleton device according to any one of claims 1 to 16, wherein the skeleton device is arranged in the shell, and one of the first flow channel and the second flow channel is connected to a water inlet, and the other is connected to a water outlet; A first filter material is arranged around the outer periphery of the skeleton body, a first cavity is arranged between the first filter material and the skeleton device, a second cavity is arranged between the first filter material and the inner tube, the first flow channel is connected to the first cavity, and the second flow channel is connected to the second cavity.

18. The filter element assembly according to claim 17, characterized in that: Also includes: A first end cover is connected to the skeleton device and communicated with the second flow channel, and a third flow channel communicated with the second cavity is constructed between the first end cover and the inner cylinder.

19. The filter element assembly according to claim 18, characterized in that: The first end cover includes a tube portion and a cover portion, the third flow channel is constructed between the cover portion and the inner tube, the tube portion is passed through the skeleton device and connects the second flow channel and the third flow channel.

20. A filtering system, characterized in that: A skeleton device comprising a filter element assembly according to any one of claims 1-16 or a filter element assembly according to any one of claims 17-19.

Images