Water purification filter element structure

Abstract

The utility model provides a water purification filter element part structure, which comprises a shell, a water inlet and outlet unit, a water inlet and outlet unit, a water inlet and outlet unit and a water outlet and inlet unit, the accommodating cavity is divided into a first water filtering cavity and a second water filtering cavity, and the second filter element cavity is located on the side, away from the water outlet unit, of the first water filtering cavity; the first filtering assembly is arranged in the first water filtering cavity, and the first filtering assembly is provided with a first water inlet part and a first water outlet part which are communicated with the water inlet and outlet unit, so that a first filtering water path is formed in the containing cavity; the second filtering assembly is arranged in the second water filtering cavity, and the second filtering assembly is provided with a second water inlet part and a second water outlet part which are communicated with the water inlet and outlet unit, so that a second filtering water path is formed in the accommodating cavity; the accommodating cavity in the shell is divided into the first water filtering cavity and the second water filtering cavity which are of an up-down structure, so that the problem that the thickness of a filtering layer in an existing four-hole filter element piece is limited is solved, and the thickness of the first filtering assembly and the thickness of the second filtering assembly can be increased according to the size of the shell.

Description

Technical Field

[0001] This application relates to the technical field of water purification equipment, and more particularly to a structure of a water purification filter element. Background Technology

[0002] In the field of water purification technology, water purifier cartridges are key components for ensuring the safety and health of drinking water. They are typically made of various materials, such as activated carbon, ceramics, cellulose, or synthetic polymers, which effectively remove impurities, contaminants, and potentially harmful microorganisms from water. Water purifier cartridges are designed to purify raw water through physical filtration, chemical adsorption, and biological interception. Depending on the application, the cartridge may need to remove suspended solids, heavy metal ions, chlorine, pesticide residues, and other organic compounds. Furthermore, as people's demands for water quality continue to increase and technology advances, water purifier cartridges are constantly innovating to meet stricter hygiene standards and higher user expectations.

[0003] The four-hole filter cartridge is a specially designed water filtration cartridge that integrates independent pre-filtration and post-filtration layers. These two layers are responsible for different stages of water treatment. The pre-filtration layer primarily removes larger particles and initial contaminants, while the subsequent post-filtration layer focuses on finer purification, such as further removing odors, colors, or trace amounts of harmful substances. This design allows a single four-hole filter cartridge to complete the filtration process that traditionally requires two separate cartridges, saving space and simplifying the installation and maintenance of the water purification system. The four-hole structure also allows water to be fully treated as it passes through each layer, thereby improving overall water purification efficiency and effectiveness.

[0004] However, four-hole filter cartridges currently have some significant drawbacks. Because existing technology divides the interior into four independent working areas from the outside in to accommodate the pre-filtration and post-filtration layers, this limits the thickness of each filtration layer. To maintain the overall size of the filter cartridge, it's not possible to simply increase the thickness of the filtration layers to improve filtration performance. This means that although four-hole filter cartridges can provide dual-layer filtration in a compact space, their filtration capacity is constrained by their physical structure, making it difficult to achieve higher filtration performance limits. Current technology has not yet found an effective solution to overcome this challenge and significantly improve the filtration efficiency and effectiveness of four-hole filter cartridges without increasing their volume. Therefore, developing a technology that can enhance filtration performance by increasing the thickness of the filtration layers within existing dimensions is of great significance for promoting the development of water purification technology. Utility Model Content

[0005] This application provides a water purification filter element structure to solve the technical problem that existing four-hole filter elements have too low an upper limit of filtration performance. The technical solution is as follows:

[0006] This application provides a water purifier filter element structure, including: a housing having an internal receiving chamber and an inlet / outlet water unit on the housing; the receiving chamber is divided into a first water filtration chamber and a second water filtration chamber, the second water filtration chamber being located on the side of the first water filtration chamber opposite to the outlet water unit; a first filter assembly disposed in the first water filtration chamber, the first filter assembly having a first inlet and a first outlet communicating with the inlet / outlet water unit to form a first water filtration path in the receiving chamber; and a second filter assembly disposed in the second water filtration chamber, the second filter assembly having a second inlet and a second outlet communicating with the inlet / outlet water unit to form a second water filtration path in the receiving chamber.

[0007] In one embodiment, the first filter assembly includes: two first end caps disposed opposite to each other in a first water filtration chamber, the first end caps having a first filter element fixing groove; and a first composite filter element disposed in the first filter element fixing groove, the first composite filter element being configured as a cylindrical structure.

[0008] The first water inlet is located on the radial side of the outer side of the first composite filter element, and the first water outlet is located on the radial side of the inner side of the first composite filter element.

[0009] In one embodiment, the second filter assembly includes: two second end caps disposed opposite to each other in the second water filtration chamber, the second end caps having a second filter element fixing groove; and a second composite filter element disposed in the second filter element fixing groove, the second composite filter element being configured as a cylindrical structure.

[0010] The second water inlet is located on the radial side of the outer side of the second composite filter element, and the second water outlet is located on the radial side of the inner side of the second composite filter element.

[0011] In one embodiment, the device further includes: a barrel body disposed in a receiving chamber, the barrel body having an opening on one side and a receiving space inside the barrel body; and a barrel lid that covers the opening of the barrel body, thereby forming a second water filtration chamber in the receiving chamber by the barrel lid and the barrel body together.

[0012] In one embodiment, the first filtration water path includes: a first water inlet channel, which is formed by the gap between the inner wall of the shell and the outer wall of the barrel, so that the first water inlet part and the water inlet / outlet unit are connected through the first water inlet channel; and a first water outlet channel, which is disposed at the center of the receiving chamber and passes through the second filter assembly, so that the first water outlet part and the water inlet / outlet unit are connected through the first water outlet channel.

[0013] In one embodiment, the second filtration water path includes: a second water inlet channel, which is formed by the gap between the inner wall of the barrel and the second filter assembly, so that the second water inlet part and the water inlet / outlet unit are connected through the second water inlet channel; and a second water outlet channel, which is formed by the gap between the second filter assembly and the first water outlet channel, so that the second water outlet part and the water inlet / outlet unit are connected through the second water outlet channel.

[0014] In one embodiment, the water inlet / outlet unit includes: a first water inlet hole, which is formed on a first end of the housing, and the first water inlet hole is connected to a first water inlet part through a first water inlet channel; and a first water outlet hole, which is formed on a first end of the housing, and the first water outlet hole is connected to a first water outlet part through a first water outlet channel.

[0015] The first water inlet and the first water outlet are arranged opposite each other on both sides of the center point of the first end along the first direction.

[0016] In one embodiment, the water inlet and outlet unit further includes: a second water inlet hole, which is opened on the first end of the housing, and the second water inlet hole is connected to the second water inlet part through a second water inlet channel; and a second water outlet hole, which is opened on the first end of the housing, and the second water outlet hole is connected to the second water outlet part through a second water outlet channel.

[0017] The second water inlet and the second water outlet are arranged opposite each other on both sides of the center point of the first end along a second direction perpendicular to the first direction; the distance between the first water inlet and the first water outlet is less than the distance between the second water inlet and the second water outlet, and the second water inlet and the second water outlet are larger than the first water inlet and the first water outlet.

[0018] In one embodiment, the water inlet / outlet unit further includes: an adapter plate disposed on the first end, the adapter plate having an adapter portion and a limiting portion, the adapter portion being used to connect to an adapter joint on a water pipe; a pressure cap mounted on the first end, the pressure cap pressing against the limiting portion to fix the adapter plate on the first end; and a water inlet cover disposed on the adapter portion, the water inlet cover having a connection port corresponding to the adapter portion.

[0019] In one embodiment, the adapter includes: a first adapter seat disposed on the adapter plate near the first water inlet, and the first adapter seat having a first water inlet at its bottom; a second adapter seat disposed on the adapter plate near the first water outlet, and the second adapter seat having a first water outlet at its bottom; a third adapter seat disposed on the adapter plate near the second water inlet, and the third adapter seat having a second water inlet at its bottom; and a fourth adapter seat disposed on the adapter plate near the second water outlet, and the fourth adapter seat having a second water outlet at its bottom.

[0020] Specifically, the first water inlet is offset towards the second adapter to connect to the first water inlet hole; the first water outlet is offset towards the first adapter to connect to the first water outlet hole; the second water inlet is offset away from the fourth adapter to connect to the second water inlet hole; and the second water outlet is offset away from the third adapter to connect to the second water outlet hole.

[0021] Compared with existing technologies, the water purification filter element structure proposed in the above-mentioned technical solution cleverly solves the problem of limited filter layer thickness in existing four-hole filter elements by dividing the internal housing into a first filter chamber and a second filter chamber with upper and lower structures. Specifically, the first filter element is disposed in the first filter chamber, while the second filter element is located in the second filter chamber. Both filter elements are connected to the inlet and outlet water units on the housing to ensure that water can flow smoothly into and out of the water purification filter element. Since the first and second filter elements are no longer limited by their respective thickness dimensions, the thickness of the first and second filter elements can be increased according to the size of the housing. This increases the amount of media and contact area in the filter functional layer during the water filtration process, improving the interception capacity and purification efficiency of pollutants. The chamber structure divided into upper and lower layers not only achieves effective separation of the dual-layer filtration function but also makes full use of the internal space resources of the housing.

[0022] In summary, this application, through innovative design of the water purifier filter element structure, successfully overcomes the shortcomings of the prior art, significantly improves the filtration performance of the water purifier filter element, provides users with a more efficient and reliable water purification solution, and contributes to the technological advancement of the water purification industry.

[0023] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0025] Figure 1 This is a three-dimensional structural diagram of the housing in the water purification filter element structure proposed in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the pressure cap and the sprue cap on the first end of the shell in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the structure of the first end of the shell in an embodiment of this application;

[0028] Figure 4 This is a three-dimensional structural diagram of the adapter plate in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the internal structure of the water purification filter element in the embodiments of this application;

[0030] Figure 6 This is a distribution diagram of the first filter chamber and the second filter device in the embodiments of this application;

[0031] Figure 7 This is a three-dimensional structural diagram of the first filtering component in an embodiment of this application;

[0032] Figure 8 This is a top view of the first filtering component in an embodiment of this application;

[0033] Figure 9 for Figure 8 BB cross-sectional view;

[0034] Figure 10 This is a three-dimensional structural diagram of the barrel body and barrel lid in an embodiment of this application;

[0035] Figure 11 This is a three-dimensional structural diagram of the second filtering component in an embodiment of this application;

[0036] Figure 12 This is a top view of the second filtering component in an embodiment of this application;

[0037] Figure 13 for Figure 12 CC section view.

[0038] Figure label:

[0039] 1. Shell;

[0040] 11. First end; 12. First water filtration chamber;

[0041] 111. First water inlet; 112. First water outlet; 113. Second water inlet; 114. Second water outlet;

[0042] 2. First filter component;

[0043] 21. First end cap; 22. First composite filter element;

[0044] 211. First filter element fixing groove; 221. First water filtration functional layer; 222. Second water filtration functional layer;

[0045] 3. Second filter component;

[0046] 31. Second end cap; 32. Second composite filter element;

[0047] 311. Second filter element fixing groove; 321. Third water filtration functional layer; 322. Fourth water filtration functional layer

[0048] 4. Barrel body;

[0049] 40. Second water filtration chamber;

[0050] 5. Bucket lid;

[0051] 6. Adapter plate;

[0052] 61. First adapter; 62. Second adapter; 63. Third adapter; 64. Fourth adapter;

[0053] 610. First water inlet; 620. First water outlet; 630. Second water inlet; 640. Second water outlet;

[0054] 7. Capping;

[0055] 8. Sprue cover;

[0056] 80. Connection port;

[0057] P101, First water inlet channel; P102, First water outlet channel; P103, Second water inlet channel; P104, Second water outlet channel. Detailed Implementation

[0058] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0059] Reference Figures 1 to 13 As shown, an embodiment of this application proposes a water purification filter element structure, which may include: a housing 1, which has an internal receiving chamber and is provided with an inlet and outlet water unit; the receiving chamber is divided into a first water filtration chamber 12 and a second water filtration chamber 40, the second water filtration chamber being located on the side of the first water filtration chamber 12 away from the outlet water unit; a first filter assembly 2, which is disposed in the first water filtration chamber 12, the first filter assembly 2 having a first water inlet and a first water outlet communicating with the inlet and outlet water unit to form a first water filtration path in the receiving chamber; and a second filter assembly 3, which is disposed in the second water filtration chamber 40, the second filter assembly 3 having a second water inlet and a second water outlet communicating with the inlet and outlet water unit to form a second water filtration path in the receiving chamber.

[0060] Specifically, in the technical solution adopted in this application, the housing 1 can be a cylindrical structure, so that the housing 1 has a receiving chamber for accommodating water filtration components. An inlet / outlet water unit is provided on one end face of the housing 1. The key technical point of this application is that the receiving chamber is divided into a first water filtration chamber 12 and a second water filtration chamber 40, and the first water filtration chamber 12 and the second water filtration chamber 40 are arranged side-by-side along both ends of the housing 1, so that the first filter assembly 2 can be disposed in the first water filtration chamber 12. The first filter assembly 2 has a first water inlet and a first water outlet communicating with the inlet / outlet water unit. The first water inlet is used to receive the first raw water discharged from the inlet / outlet water unit, and the first water outlet is used to discharge the first pure water. The water is discharged from the inlet / outlet unit into the housing 1, forming a first filtration water path in the receiving chamber. It should be noted that the first raw water is water unfiltered by the first filter assembly 2, and the first pure water is water filtered by the first filter assembly 2. The second filtration assembly 3 is disposed in the second filtration chamber 40. The second filter assembly 3 has a second inlet and a second outlet connected to the inlet / outlet unit. The second inlet receives the second raw water discharged from the inlet / outlet unit, and the second outlet discharges the second pure water. The second pure water is discharged from the inlet / outlet unit into the housing 1, forming a second filtration water path in the receiving chamber. Again, the second raw water is water unfiltered by the second filter assembly 3, and the second pure water is water filtered by the second filter assembly 3. Therefore, in this embodiment, the functional components with filtration performance in the first filter assembly 2 and the second filter assembly 3 can have their thickness adjusted according to the inner diameter of the housing 1, effectively improving the filtration performance of the filter element and extending its service life.

[0061] In one embodiment, one of the first filter assembly 2 and the second filter assembly 3 can serve as a pre-filtration water assembly, and the other can serve as a post-filtration water assembly. Taking the first filter assembly 2 for pre-filtration and the second filter assembly 3 for post-filtration as an example: the first raw water enters the first filter assembly 2 through the inlet and outlet water unit, so that the first raw water is pre-filtered by the first filter assembly 2 to form the first pure water. The first pure water is discharged through the inlet and outlet water unit, and after passing through the water circuit board, it is discharged into the reverse osmosis filter element for filtration. After passing through the inlet and outlet water unit, the second raw water is discharged into the second filter assembly 3 for post-filtration to form the second pure water. The second pure water is then discharged through the inlet and outlet water unit.

[0062] It should be noted that in this application, post-filtering can also be performed by the first filter component 2 and pre-filtering by the second filter component 3. Their working principle is the same, so it will not be described in detail here.

[0063] Furthermore, refer to Figures 7 to 9As shown, in some embodiments, the first filter assembly 2 includes: two first end caps 21, which are disposed opposite to each other in the first water filtration chamber 12, and the first end caps 21 are provided with first filter element fixing grooves 211; and a first composite filter element 22, which is disposed in the first filter element fixing grooves 211, and the first composite filter element 22 is configured as a cylindrical structure.

[0064] The first water inlet is located on the radial side of the outer side of the first composite filter element 22, and the first water outlet is located on the radial side of the inner side of the first composite filter element 22.

[0065] Specifically, in the technical solution adopted in this application, the first composite filter element 22 has water filtration characteristics and is fixed in two first filter element fixing grooves 211 by pressing. The first composite filter element 22 adopts a cylindrical structure, and the first filter element fixing grooves 211 are set as annular structures adapted to the two ends of the first composite filter element 22. In this embodiment, in order to make the water filtration performance of the first filter assembly 2 consistent, the first composite filter element 22 can adopt a cylindrical structure, thereby forming a water filtration structure with uniform thickness between the outer radial side and the inner radial side of the first composite filter element 22. The first raw water enters from the outer radial side of the first composite filter element 22, and the first pure water is discharged from the inner radial side of the first composite filter element 22 to complete the filtration process. In this embodiment, it can be understood that the first water inlet of the first filter assembly 2 is located on the outer radial side of the first composite filter element 22, and the first water outlet is located on the inner radial side of the first composite filter element 22.

[0066] In one embodiment, the first composite filter element 22 may have a first water filtration functional layer 221 and a second water filtration functional layer 222. The first water filtration functional layer 221 is used to filter particulate impurities, such as larger particles like silt and rust. In this embodiment, the first water filtration functional layer 221 may be made of polypropylene cotton. The second water filtration functional layer 222 is used to filter organic pollutants, such as pesticide residues, benzene compounds from industrial wastewater discharge, polycyclic aromatic hydrocarbons, detergent decomposition products, etc. In this embodiment, the second water filtration functional layer 222 may be made of carbon fiber. Specifically, the first water filtration functional layer 221 may wrap around the outside of the second water filtration functional layer 222, so that in the first filter assembly 2, the first water filtration functional layer 221 performs the first filtration, while the second water filtration functional layer 222 performs the second filtration.

[0067] Furthermore, refer to Figures 11 to 13 As shown, in some embodiments, the second filter assembly 3 includes: two second end caps 31, which are disposed opposite to each other in the second water filtration chamber 40, and the second end caps 31 are provided with second filter element fixing grooves 311; and a second composite filter element 32, which is disposed in the second filter element fixing grooves 311, and the second composite filter element 32 is configured as a cylindrical structure.

[0068] The second water inlet is located on the radial side outside the second composite filter element 32, and the second water outlet is located on the radial side inside the second composite filter element 32.

[0069] Specifically, in the technical solution adopted in this application, the first composite filter element 22 has water filtration characteristics and is fixed in two second filter element fixing grooves 311 by pressing. The second composite filter element 32 also adopts a cylindrical structure, and the second filter element fixing grooves 311 are set as annular structures adapted to the two ends of the second composite filter element 32. In this embodiment, in order to make the water filtration performance of the second filter assembly 3 consistent, the second composite filter element 32 can adopt a cylindrical structure, thereby forming a water filtration structure with uniform thickness between the outer radial side and the inner radial side of the second composite filter element 32. The second raw water enters from the outer radial side of the second composite filter element 32, and the second pure water is discharged from the inner radial side of the second composite filter element 32 to complete the filtration process. In this embodiment, it can be understood that the second water inlet of the second filter assembly 3 is located on the outer radial side of the second composite filter element 32, and the second water outlet is located on the inner radial side of the second composite filter element 32.

[0070] In one embodiment, the second composite filter element 32 may have a third water filtration functional layer 321 and a fourth water filtration functional layer 322. The third water filtration functional layer 321 is used to remove residual chlorine and improve pH. In this embodiment, the third water filtration functional layer 321 may be made of carbon fiber. The fourth water filtration functional layer 322 is used to filter fine particulate impurities. In this application, the fourth water filtration functional layer 322 may be made of polypropylene cotton. The cotton fibers of the fourth water filtration functional layer 322 may be finer than the cotton fibers of the first water filtration functional layer 221 to filter even smaller particulate impurities. Specifically, the third water filtration functional layer 321 may be wrapped around the outside of the fourth water filtration functional layer 322 so that in the second filter assembly 3, the third water filtration functional layer 321 performs the first filtration, while the fourth water filtration functional layer 322 performs the second filtration.

[0071] Furthermore, refer to Figure 6 and Figure 10 As shown, in some embodiments, it further includes: a barrel 4 disposed in a receiving chamber, the barrel 4 having an opening on one side and a receiving space inside the barrel 4; and a barrel lid 5 covering the opening of the barrel 4, thereby forming a second water filtration chamber 40 in the receiving chamber by the barrel lid 5 and the barrel 4 together.

[0072] Figure 6 yes Figure 2In the AA′ cross-sectional view, specifically, in the technical solution adopted in this application, the second filter component 3 can be configured in the accommodating space of the barrel 4, and the barrel lid 5 can be closed on the opening of the barrel 4 to form the second water filtration chamber 40. Through the barrier between the barrel 4 and the barrel lid 5, the first water filtration chamber 12 and the second water filtration chamber 40, which are independent of each other, can be formed in the accommodating chamber of the shell 1.

[0073] Furthermore, refer to Figure 5 As shown, in some embodiments, the first filtration water path includes: a first water inlet channel P101, which is formed by the gap between the inner wall of the housing 1 and the outer wall of the barrel 4, so that the first water inlet part and the water inlet / outlet unit are connected through the first water inlet channel P101; and a first water outlet channel P102, which is disposed at the center of the receiving chamber, and the first water outlet channel P102 passes through the second filter assembly 3, so that the first water outlet part and the water inlet / outlet unit are connected through the first water outlet channel P102.

[0074] Furthermore, refer to Figure 5 As shown, in some embodiments, the second filtration water path includes: a second water inlet channel P103, which is formed by the gap between the inner wall of the barrel 4 and the second filter assembly 3, so that the second water inlet and the water inlet / outlet unit are connected through the second water inlet channel P103; and a second water outlet channel P104, which is formed by the gap between the second filter assembly and the first water outlet channel P102, so that the second water outlet and the water inlet / outlet unit are connected through the second water outlet channel P104.

[0075] Figure 5 yes Figure 2 Specifically, in the technical solution adopted in this application, the first water outlet channel P102 can be a water pipe configured in the receiving chamber of the housing 1. This water pipe passes through the second filter assembly 3, connecting the inlet / outlet water unit and the first filter assembly 2, so as to block the first pure water from entering the second filter assembly 3. When the first filter assembly 2 is used as a pre-filter and the second filter assembly 3 is used as a post-filter, the first raw water entering from the inlet / outlet water unit can flow to the first inlet of the first filter assembly 2 through the first inlet channel P101, and the first pure water can pass through the second filter assembly 3 through the first outlet channel P102 and be discharged through the inlet / outlet water unit to complete the pre-filtration process of processing the first raw water into the first pure water; while the second raw water entering from the inlet / outlet water unit can flow to the second inlet of the second filter assembly 3 through the second inlet channel P103, and the second pure water can be discharged through the inlet / outlet water unit through the second outlet channel P104 to complete the post-filtration process of processing the second raw water into the second pure water.

[0076] Furthermore, refer to Figure 3As shown, in some embodiments, the water inlet and outlet unit includes: a first water inlet hole 111, which is opened on the first end 11 of the housing 1, and the first water inlet hole 111 is connected to the first water inlet part through the first water inlet channel P101; and a first water outlet hole 112, which is opened on the first end 11 of the housing 1, and the first water outlet hole 112 is connected to the first water outlet part through the first water outlet channel P102.

[0077] The first water inlet hole 111 and the first water outlet hole 112 are arranged opposite each other along the first direction on both sides of the center point of the first end 11.

[0078] Furthermore, refer to Figure 3 As shown, in some embodiments, the water inlet and outlet unit further includes: a second water inlet hole 113, which is opened on the first end 11 of the housing 1, and the second water inlet hole 113 is connected to the second water inlet part through the second water inlet channel P103; and a second water outlet hole 114, which is opened on the first end 11 of the housing 1, and the second water outlet hole 114 is connected to the second water outlet part through the second water outlet channel P104.

[0079] The second water inlet hole 113 and the second water outlet hole 114 are arranged opposite each other on both sides of the center point of the first end 11 along a second direction perpendicular to the first direction. The distance between the first water inlet hole 111 and the first water outlet hole 112 is less than the distance between the second water inlet hole 113 and the second water outlet hole 114, and the second water inlet hole 113 and the second water outlet hole 114 are larger than the first water inlet hole 111 and the first water outlet hole 112.

[0080] Specifically, in the technical solution adopted in this application, when the first filter component 2 is used as a pre-filter and the second filter component 3 is used as a post-filter, the first water inlet 111 and the first water outlet 112 can be arranged along a first direction on both sides of the center point of the first end 11. The second water inlet 113 and the second water outlet 114 can also be arranged along a second direction on both sides of the center point of the first end 11. The second direction can be perpendicular to the first direction, and the distance between the first water inlet 111 and the first water outlet 112 is smaller than the distance between the second water inlet 113 and the second water outlet 114. This can be understood as: the distance between the first water inlet 111 and the first water outlet 112 is smaller than the distance between the second water inlet 113 and the second water outlet 114. The first water outlet 112 is located in the inner periphery of the first end 11, while the second water inlet 113 and the second water outlet 114 are located in the outer periphery of the first end 11 compared to the first water inlet 111 and the first water outlet 112. This allows the second water inlet 113 and the second water outlet 114 to have a larger arrangement area to increase their aperture without increasing the size of the end of the housing. In this embodiment, the second water inlet 113 and the second water outlet 114 are larger than the first water inlet 111 and the first water outlet 112, thereby increasing the flow rate of the second pure water in the filter element by increasing the aperture of the second water inlet 113 and the second water outlet 114.

[0081] Furthermore, refer to Figure 2 and Figure 4 As shown, in some embodiments, the water inlet / outlet unit further includes: an adapter plate 6, which is disposed on the first end 11, the adapter plate 6 having an adapter portion and a limiting portion, the adapter portion being used to connect to an adapter on a water pipe; a pressure cap 7, which is installed on the first end 11, the pressure cap 7 being pressed against the limiting portion to fix the adapter plate 6 on the first end 11; and a water inlet cover 8, which is disposed on the adapter portion, the water inlet cover 8 having a connection port 80 corresponding to the adapter portion.

[0082] Specifically, in the technical solution adopted in this application, the adapter plate 6 enables the first end 11 of the housing 1 to be connected to the adapter joint on the connecting water pipe, so as to transport water in the connecting water pipe to the housing 1 for filtration; while the pressure cap 7 is disposed on the first end 11 of the housing 1, so as to fix the adapter plate 6 on the first end 11 by pressing the pressure cap 7 against the limiting part of the adapter plate 6; the water inlet cap 8 is provided with connection ports 80 corresponding to the adapter part, for connecting the adapter part and the adapter joint. It should be noted that the structure of the pressure cap 7 and the water inlet cap 8 is not improved and belongs to the prior art, so it will not be described in detail.

[0083] Furthermore, refer to Figure 4 As shown, in some embodiments, the adapter includes: a first adapter 61, which is arranged on the adapter plate 6 near the first water inlet 111, and the bottom of the first adapter 61 has a first water inlet 610; a second adapter 62, which is arranged on the adapter plate 6 near the first water outlet 112, and the bottom of the second adapter 62 has a first water outlet 620; a third adapter 63, which is arranged on the adapter plate 6 near the second water inlet 113, and the bottom of the third adapter 63 has a second water inlet 630; and a fourth adapter 64, which is arranged on the adapter plate 6 near the second water outlet 114, and the bottom of the fourth adapter 64 has a second water outlet 640.

[0084] Specifically, the first water inlet 610 is offset toward the second adapter 62 to connect to the first water inlet hole 111; the first water outlet 620 is offset toward the first adapter 61 to connect to the first water outlet hole 112; the second water inlet 630 is offset away from the fourth adapter 64 to connect to the second water inlet hole 113; and the second water outlet 640 is offset away from the third adapter 63 to connect to the second water outlet hole 114.

[0085] Specifically, in the technical solution adopted in this application, the adapter part may include: a first adapter seat 61, a second adapter seat 62, a third adapter seat 63, and a fourth adapter seat 64 for connecting the adapter connector. Since the diameter of the adapter plate 6 is generally smaller than the diameter of the first end 11, and the adapter plate 6 needs to be connected to the water inlet and outlet unit, for example: the first adapter seat 61 is connected to the first water inlet hole 111, the second adapter seat 62 is connected to the first water outlet hole 112, the third adapter seat 63 is connected to the second water inlet hole 113, and the fourth adapter seat 64 is connected to the second water outlet hole 114. Based on the arrangement of the first water inlet 111 and the first water outlet 112, the first adapter 61 and the second adapter 62 are close to each other, but due to their own structural limitations, they cannot be in the same concentricity as the first water inlet 111 and the first water outlet 112, so as to affect the connection between the adapter plate 6 and the water inlet / outlet unit. Therefore, a first water inlet 610 is opened at the bottom of the first adapter 61, and the first water inlet 610 is offset towards the second adapter 62. A first water outlet 620 is opened at the bottom of the second adapter 62, and the first water outlet 620 is offset towards the first adapter 61. It can be understood that the first water inlet 610 is offset towards the first water inlet 111, so that the first water inlet 610 is closer to the first water inlet 111, and the first water outlet 620 is offset towards the first water outlet 112, so that the first water outlet 620 is closer to the first water outlet 112. Based on the arrangement of the second inlet hole 113 and the second outlet hole 114, the third adapter 63 and the fourth adapter 64 are far apart from each other. Due to the size limitation of the adapter plate 6, they cannot be concentric with the second inlet hole 113 and the second outlet hole 114, which would affect the connection between the adapter plate 6 and the water inlet / outlet unit. Therefore, a second inlet 630 is opened at the bottom of the third adapter, and the second inlet 630 is offset away from the fourth adapter 64. A second outlet 640 is opened at the bottom of the fourth adapter 64, and the second outlet... The second water inlet 640 is offset in the direction away from the third adapter 63; this can be understood as: the second water inlet 630 is offset in the direction of the second water outlet 114, so that the second water inlet 630 is closer to the second water outlet 113, and the second water outlet 640 is offset in the direction of the second water outlet 114, so that the second water outlet 640 is closer to the second water outlet 114, thereby reducing the probability of the adapter plate 6 and the water inlet / outlet unit failing to connect and communicate, while also allowing the use of the adapter plate 6, which is smaller than the first end 11 of the housing 1.In this application, the arrangement of the first water inlet 111, the first water outlet 112, the second water inlet 113, the second water outlet 114, the first water inlet 610, the first water outlet 620, the second water inlet 630, and the second water outlet 640 not only allows the use of a small-sized adapter plate 6 in the water purification filter element of this application, but also increases the flow rate of the post-filtration without increasing the overall size of the filter element. Therefore, compared with the prior art of increasing the flow rate by increasing the size, this application can create more space in the water purification equipment.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0087] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0088] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process. Furthermore, the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functionality involved.

[0089] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus or device (such as a computer-based system, a processor-included system or other system that can fetch and execute instructions from, an instruction execution system, apparatus or device).

[0090] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. All or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware, the program being stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiments.

[0091] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. This storage medium can be a read-only memory, a disk, or an optical disk, etc.

[0092] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A water purification filter element structure, characterized in that, include: The shell has an internal cavity and is equipped with water inlet and outlet units; The receiving chamber is divided into a first water filtration chamber and a second water filtration chamber, with the second water filtration chamber located on the side of the first water filtration chamber away from the water outlet unit; A first filter assembly is disposed in the first water filtration chamber. The first filter assembly has a first water inlet and a first water outlet communicating with the water inlet and outlet unit, so as to form a first water filtration path in the receiving chamber. A second filter assembly is disposed in the second water filtration chamber. The second filter assembly has a second water inlet and a second water outlet that communicate with the water inlet and outlet unit to form a second water filtration path in the receiving chamber.

2. The water purification filter element structure according to claim 1, characterized in that, The first filtering component includes: Two first end caps are disposed opposite each other in the first water filtration chamber, and the first end caps are provided with first filter element fixing grooves; The first composite filter element is disposed in the first filter element fixing groove, and the first composite filter element is configured as a cylindrical structure. The first water inlet is located on the radial side outside the first composite filter element, and the first water outlet is located on the radial side inside the first composite filter element.

3. The water purification filter element structure according to claim 1 or 2, characterized in that, The second filtering component includes: Two second end caps are disposed opposite each other in the second water filtration chamber, and the second end caps are provided with second filter element fixing grooves; The second composite filter element is disposed in the second filter element fixing groove, and the second composite filter element is configured as a cylindrical structure. The second water inlet is located on the radial side outside the second composite filter element, and the second water outlet is located on the radial side inside the second composite filter element.

4. The water purification filter element structure according to claim 3, characterized in that, Also includes: A barrel body is disposed in the receiving chamber, the barrel body has an opening on one side, and the interior of the barrel body has a receiving space; A lid that covers the opening of the barrel body, thereby forming a second water filtration chamber within the receiving chamber by means of the lid and the barrel body.

5. The water purification filter element structure according to claim 4, characterized in that, The first filtration water path includes: The first water inlet channel is formed by the gap between the inner wall of the shell and the outer wall of the barrel, so that the first water inlet part and the water inlet / outlet unit are connected through the first water inlet channel. A first water outlet channel is disposed at the center of the receiving chamber, and the first water outlet channel passes through the second filter assembly so that the first water outlet part is connected to the inlet and outlet water unit through the first water outlet channel.

6. The water purification filter element structure according to claim 5, characterized in that, The second filtration path includes: The second water inlet channel is formed by the gap between the inner wall of the barrel and the second filter assembly, so that the second water inlet part and the water inlet / outlet unit are connected through the second water inlet channel. The second water outlet channel is formed by the gap between the second filter component and the first water outlet channel, so that the second water outlet part is connected to the inlet and outlet water unit through the second water outlet channel.

7. The water purification filter element structure according to claim 1, characterized in that, The water inlet / outlet unit includes: A first water inlet hole is provided on the first end of the housing, and the first water inlet hole is connected to the first water inlet part through a first water inlet channel; A first water outlet is provided on the first end of the housing, and the first water outlet is connected to the first water outlet part through a first water outlet channel. The first water inlet and the first water outlet are arranged opposite each other along the first direction on both sides of the center point of the first end.

8. The water purification filter element structure according to claim 7, characterized in that, The water inlet and outlet unit also includes: The second water inlet is provided on the first end of the housing, and the second water inlet is connected to the second water inlet part through the second water inlet channel; The second water outlet is opened on the first end of the housing, and the second water outlet is connected to the second water outlet part through the second water outlet channel; Wherein, the second water inlet and the second water outlet are arranged opposite each other on both sides of the center point of the first end along a second direction perpendicular to the first direction; the distance between the first water inlet and the first water outlet is less than the distance between the second water inlet and the second water outlet, and the second water inlet and the second water outlet are larger than the first water inlet and the first water outlet.

9. The water purification filter element structure according to claim 8, characterized in that, The water inlet and outlet unit also includes: An adapter plate is disposed on the first end, the adapter plate having an adapter portion and a limiting portion, the adapter portion being used to connect to an adapter joint on a water pipe; A pressure cap is mounted on the first end, and the pressure cap presses against the limiting portion to fix the adapter plate to the first end; A sprue cap is disposed on the adapter, and the sprue cap has a connection port corresponding to the adapter.

10. The water purification filter element structure according to claim 9, characterized in that, The adapter includes: The first adapter is arranged on the adapter plate near the first water inlet, and the bottom of the first adapter has a first water inlet. The second adapter is arranged on the adapter plate near the first water outlet, and the bottom of the second adapter has a first water outlet. The third adapter is arranged on the adapter plate near the second water inlet, and the bottom of the third adapter has a second water inlet. The fourth adapter is arranged on the adapter plate near the second water outlet, and the bottom of the fourth adapter has a second water outlet. Wherein, the first water inlet is offset toward the direction of the second adapter to connect with the first water inlet; the first water outlet is offset toward the direction of the first adapter to connect with the first water outlet. The second water inlet is offset in a direction away from the fourth adapter to connect to the second water inlet hole; the second water outlet is offset in a direction away from the third adapter to connect to the second water outlet hole.

Images