Filter cartridge structure and water appliance

Abstract

The embodiment of the present application discloses a filter core structure and a water equipment, comprising: a filter core shell, the filter core shell has a first inlet, a first outlet, a second inlet and a second outlet; a first filter assembly is installed in the filter core shell, and a first flow path passing through the first filter assembly is formed between the first inlet and the first outlet; a second filter assembly, a second flow path passing through the second filter assembly is formed between the second inlet and the second outlet; wherein the first filter assembly comprises a first end cover and a support cylinder, the first end cover and the support cylinder are distributed along the length direction of the filter core shell, and the second filter assembly is installed in the first end cover. The filter core structure of the embodiment of the present application can ensure the filtering effect of water flow, improve the integration of the filter core structure, reduce the occupied space, improve the installation convenience, ensure the structural strength of the first end cover and the support cylinder, improve the use reliability, and the structure is simple, and the setting cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of kitchen heating technology, and in particular to a filter element structure and a water-using device having the filter element structure. Background Technology

[0002] With the diversification of lifestyle needs, small, multifunctional water-using devices are becoming increasingly popular. Their small size saves space, allowing for more functions to meet the diverse drinking water needs of different groups. Existing water-using devices can be equipped with composite filtration structures. These structures are compact, easy to install, and can filter water multiple times before it reaches the device, making the water directly drinkable. They are convenient to use and improve water cleanliness, thus enhancing the user experience. However, existing composite filtration structures are complex, costly to manufacture, and have relatively low internal structural strength, making them prone to deformation. This can obstruct water flow, affecting filtration efficiency and reducing reliability, indicating room for improvement. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a filter element structure that is highly integrated, occupies little space, is easy to install, ensures effective filtration of water flow, improves user health, and has a simple structure that reduces installation costs, increases structural strength, guarantees filtration efficiency, and improves reliability.

[0004] According to an embodiment of the present invention, a filter element structure includes: a filter element housing having a first inlet, a first outlet, a second inlet, and a second outlet; a first filter assembly installed within the filter element housing, wherein a first flow path is formed between the first inlet and the first outlet; and a second filter assembly installed within the filter element housing, wherein a second flow path is formed between the second inlet and the second outlet; wherein the first filter assembly includes a first end cap and a support cylinder, the first end cap and the support cylinder being distributed along the length direction of the filter element housing, and the second filter assembly being installed within the first end cap.

[0005] According to the filter element structure of the present invention, by integrating a first filter component and a second filter component, secondary filtration of water flow can be performed to ensure the filtration effect of the water flow, improve the health of users, and increase the integration of the filter element structure, reduce the space occupied, and improve the ease of installation. At the same time, the first end cap and the support cylinder of the first filter component are distributed along the length direction of the filter element shell, so that the lengths of the first end cap and the support cylinder are relatively short, in order to ensure the structural strength of the first end cap and the support cylinder, thereby ensuring filtration efficiency, improving the reliability of use, and the structure is simple, which can reduce the installation cost, improve the use effect, and have a wider range of applications.

[0006] According to some embodiments of the filter element structure of the present invention, the outer peripheral wall of the first end cap is provided with an outwardly protruding positioning portion, the positioning portion being adapted to press against the inner peripheral wall of the filter element housing.

[0007] According to some embodiments of the filter element structure of the present invention, the positioning part is at least two sets, and the at least two sets of the positioning parts are distributed axially spaced apart along the first end cap.

[0008] According to some embodiments of the filter element structure of the present invention, each group of the positioning parts is provided as a plurality of them, and the plurality of positioning parts are distributed circumferentially spaced along the first end cap.

[0009] According to some embodiments of the filter element structure of the present invention, a set of the positioning portions is located at one end of the first end cap near the support cylinder, and a positioning flange is formed on the outer side of the positioning portions, at least a portion of the positioning flange being located on the outer side of the support cylinder.

[0010] According to some embodiments of the filter element structure of the present invention, one end of the filter element housing is provided with an assembly port, and a detachable connecting end cap is provided at the assembly port. The first filter assembly and the second filter assembly are both adapted to be installed into the filter element housing from the assembly port.

[0011] The positioning part has a guide slope, which is used to guide and cooperate with the filter element housing when the first end cap is installed.

[0012] According to some embodiments of the filter element structure of the present invention, a first reinforcing rib is provided inside the first end cap near the end of the support cylinder;

[0013] And / or, the outer peripheral wall of the support cylinder is provided with a second reinforcing rib.

[0014] According to some embodiments of the filter element structure of the present invention, the first reinforcing rib is provided as a plurality of first reinforcing ribs, and the plurality of first reinforcing ribs are distributed at intervals along the circumference of the first end cap;

[0015] And / or, the second reinforcing rib is provided as a plurality of ribs, and the plurality of second reinforcing ribs are distributed at intervals along the circumference of the support cylinder;

[0016] And / or, the first reinforcing rib is disposed on the inner end face of the first end cover and extends along the axial direction of the first end cover.

[0017] According to some embodiments of the filter element structure of the present invention, the wall thickness of the support cylinder is set as a, and satisfies: a≥1.8mm;

[0018] And / or, the thickness of the end of the first end cap near the support cylinder is set as b, and satisfies: b≥2.5mm.

[0019] According to some embodiments of the filter element structure of the present invention, the first inlet and the first outlet are both located at the same end of the filter element housing, and the first end cap is provided with a middle connecting port;

[0020] The first flow path includes a first flow segment, a second flow segment, and a filtration space. The first flow segment is connected to the first inlet, and the second flow segment is connected to the first outlet. A portion of the first flow segment is formed between the first end cap and the filter element housing, and another portion is formed between the support cylinder and the filter element housing. The filtration space is formed inside the support cylinder and is provided with a first filter element. The second flow segment is formed between the first end cap and the second filter assembly. The filtration space and the second flow segment are connected through the intermediate communication port.

[0021] According to some embodiments of the filter element structure of the present invention, the first inlet, the first outlet, the second inlet and the second outlet are all located at the same end of the filter element housing.

[0022] According to some embodiments of the filter element structure of the present invention, the end face of the first end cap facing the support cylinder is provided with a limiting groove that opens in the axial direction, and the end of the support cylinder extends into the limiting groove.

[0023] The present invention also proposes a water-using device.

[0024] The water-using equipment according to embodiments of the present invention is provided with the filter element structure described in any one of the above claims.

[0025] The water-using equipment and the filter structure described above have the same advantages over the prior art, which will not be repeated here.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is a cross-sectional view of the filter element structure according to an embodiment of the present invention. Figure 1 ;

[0029] Figure 2 This is a cross-sectional view of the filter element structure according to an embodiment of the present invention. Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the structure of the first end cap according to an embodiment of the present invention;

[0031] Figure 4This is a cross-sectional view of the first end cap according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the support cylinder according to an embodiment of the present invention;

[0033] Figure 6 This is a partial structural schematic diagram of a water-using device according to an embodiment of the present invention.

[0034] Figure label:

[0035] Water-using equipment 1000, filter element structure 100, mounting bracket 101, RO filter element 102, panel 103, water outlet 104.

[0036] Filter cartridge housing 1, first inlet 11, first outlet 12, second inlet 13, second outlet 14, assembly port 15, connecting end cap 2, handle 21.

[0037] First filter assembly 3, first end cap 31, positioning part 311, guide slope 312, positioning flange 313, first reinforcing rib 314, middle connecting port 315, limiting groove 316, second end cap 32, support cylinder 33, second reinforcing rib 331, first filter element 34, first flow path 35, first flow section 351, second flow section 352, filtration space 353.

[0038] The second filter assembly 4, inner cylinder 41, support part 411, third end cap 42, fourth end cap 43, second filter element 44, second flow path 45, sealing groove 5, and sealing element 51. Detailed Implementation

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

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] The following is for reference. Figures 1-6 The filter element structure 100 described in this embodiment of the invention has high integration, small space occupation, and is easy to install. It can ensure the filtration effect on water flow, improve the health of users, and has a simple structure, which can reduce the installation cost, improve the structural strength, ensure filtration efficiency, and improve the reliability of use.

[0043] like Figures 1-6 As shown, a filter element structure 100 according to an embodiment of the present invention includes: a filter element housing 1, a first filter component 3, and a second filter component 4.

[0044] The filter housing 1 has a first inlet 11, a first outlet 12, a second inlet 13, and a second outlet 14. A first filter assembly 3 is installed inside the filter housing 1. A first flow path 35 is formed between the first inlet 11 and the first outlet 12, passing through the first filter assembly 3. A second filter assembly 4 is installed inside the filter housing 1. A second flow path 45 is formed between the second inlet 13 and the second outlet 14, passing through the second filter assembly 4. The first filter assembly 3 includes a first end cap 31 and a support cylinder 33. The first end cap 31 and the support cylinder 33 are distributed along the length direction of the filter housing 1. The second filter assembly 4 is installed inside the first end cap 31.

[0045] The filter element structure 100 can be installed in the water-using equipment 1000 to filter the water flowing into the water-using equipment 1000. The water-using equipment 1000 can be configured as a tabletop, floor-standing, built-in, or pipeline machine, etc. The water-using equipment 1000 can also be equipped with a heating module, a cooling module, and a water tank module. The heating module can heat the water in the water-using equipment 1000, the cooling module can cool the water in the water-using equipment 1000, the ice-making module can perform ice-making operations, and the water tank module can store water so that the water-using equipment 1000 can output hot water, cold water, and ice cubes. The water-using equipment 1000 can also be equipped with a coffee module, a soda water module, and a tea beverage module to meet various usage needs.

[0046] Specifically, the filter element structure 100 is provided with a filter element housing 1, which is located on the outermost side of the filter element structure 100. It provides installation space for the internal structure of the filter element structure 100, provides support and protection for the internal structure of the filter element structure 100, ensures the operational reliability of the filter element structure 100, and facilitates the installation of the filter element structure 100 in the water equipment 1000. The filter element housing 1 has a first inlet 11, a first outlet 12, a second inlet 13, and a second outlet 14. The first inlet 11, the first outlet 12, the second inlet 13, and the second outlet 14 are all connected to the external flow path, so that external water can flow into the filter element housing 1 and flow from the filter element housing 1 to the outside, so that the external water can be filtered by the filter element structure 100 and then delivered to the subsequent flow path.

[0047] Furthermore, the filter element structure 100 is also provided with a first filter component 3 and a second filter component 4. The first filter component 3 is installed inside the filter element housing 1, and the first filter component 3 can be connected to the inner wall of the filter element housing 1 by welding or snap-fitting to ensure the installation reliability of the first filter component 3. The second filter component 4 is installed inside the filter element housing 1, and the second filter component 4 can also be connected to the inner wall of the filter element housing 1 by welding or snap-fitting to ensure the installation reliability of the second filter component 4.

[0048] In addition, a first flow path 35 is formed between the first inlet 11 and the first outlet 12, passing through the first filter assembly 3. The first inlet 11 can be connected to an external water source, so that external water can flow through the first inlet 11 into the first flow path 35, and the first flow path 35 flows through the first filter assembly 3, so that the first filter assembly 3 can filter the water flow once.

[0049] Furthermore, the first outlet 12 is connected to the external intermediate pipeline, which is equipped with a booster pump and RO filter 102, etc., to ensure the reliability of water delivery and to purify the water, ensuring the health of the water. The intermediate pipeline is also connected to the second inlet 13, so that the water in the intermediate pipeline can flow through the second inlet 13 to the second flow path 45, and the second flow path 45 flows through the second filter component 4, so that the second filter component 4 can perform secondary filtration on the water. The second outlet 14 can be connected to the water outlet pipeline, so that the water that has been filtered twice can be used for ice making or direct drinking, etc., improving the health of the user.

[0050] In this way, by installing both the first filter component 3 and the second filter component 4 inside the filter housing 1, the integration of the filter structure 100 can be improved, the space occupied can be reduced, the installation convenience can be improved, and the filter structure 100 can filter the water flow twice, thereby improving the filtration effect and thus improving the health of use and enhancing the user experience.

[0051] Furthermore, the first filter assembly 3 is provided with a first end cap 31 and a support cylinder 33. The first end cap 31 and the support cylinder 33, together with the filter element housing 1, define the first flow path 35 to ensure the reliability of water flow. The first end cap 31 and the support cylinder 33 are distributed along the length direction of the filter element housing 1. That is, in the length direction of the filter element housing 1, one end of the first end cap 31 is connected to the filter element housing 1, and the other end is connected to the support cylinder 33. The end of the support cylinder 33 away from the first end cap 31 can also be connected to the filter element housing 1, so that the first end cap 31 and the support cylinder 33 can be jointly supported and installed in the filter element housing 1 along the length direction of the filter element housing 1.

[0052] In this way, the dimensions of the support cylinder 33 and the first end cap 31 along the length of the filter element housing 1 can be shortened, simplifying the structure of the first end cap 31 and the support cylinder 33, reducing manufacturing materials, and thus saving installation costs. Furthermore, by setting the length of the first end cap 31 and the support cylinder 33 to be shorter, the pressure exerted on the first end cap 31 and the support cylinder 33 when the water flows through them is smaller, ensuring the structural strength of the first end cap 31 and the support cylinder 33. This prevents the first end cap 31 and the support cylinder 33 from deforming, which would obstruct the flow of water in the first flow path 35, thereby ensuring filtration efficiency and improving reliability. Moreover, the second filter assembly 4 is installed inside the first end cap 31, which can further improve the integration of the filter element structure 100, reduce the space occupied, and improve weight reduction.

[0053] According to the filter element structure 100 of the present invention, by integrating a first filter component 3 and a second filter component 4, secondary filtration of water flow can be performed to ensure the filtration effect of water flow, improve the health of use, and increase the integration of the filter element structure 100, reduce the space occupied, and improve the ease of installation. At the same time, the first end cap 31 and the support cylinder 33 of the first filter component 3 are distributed along the length direction of the filter element housing 1, so that the lengths of the first end cap 31 and the support cylinder 33 are relatively short, so as to ensure the structural strength of the first end cap 31 and the support cylinder 33, thereby ensuring filtration efficiency, improving the reliability of use, and having a simple structure, reducing installation costs, better use effect, and wider applicability.

[0054] In some embodiments, the outer peripheral wall of the first end cap 31 is provided with an outwardly protruding positioning portion 311, which is adapted to press against the inner peripheral wall of the filter element housing 1.

[0055] Specifically, the first filter assembly 3 is installed inside the filter element housing 1, and the first filter assembly 3 is provided with a first end cap 31, that is, the first end cap 31 is also installed inside the filter element housing 1, such as... Figure 1 and Figure 3 As shown, the outer peripheral wall of the first end cover 31 is also provided with a positioning part 311. The positioning part 311 protrudes outward from the outer peripheral wall of the first end cover 31. The positioning part 311 can be configured as a positioning protrusion, a positioning post or a positioning plate, etc. One end of the positioning part 311 is connected to the outer peripheral wall of the first end cover 31, and the other end is pressed against the inner peripheral wall of the filter element housing 1, so that the positioning part 311 can be pressed and supported between the outer peripheral wall of the first end cover 31 and the inner peripheral wall of the filter element housing 1.

[0056] Thus, when the first filter assembly 3 is placed inside the filter housing 1, the positioning part 311 can press against the inner peripheral wall of the filter housing 1 to ensure that the first filter assembly 3 is installed along the required trajectory and that the first filter assembly 3 can be installed in the required position inside the filter housing 1, ensuring installation reliability and improving installation efficiency. In addition, the positioning part 311 pressing against the inner peripheral wall of the filter housing 1 and the outer peripheral wall of the first end cover 31 can improve the structural strength of the filter housing 1 and the first end cover 31, ensuring the reliability of the filter structure 100 in use.

[0057] In some embodiments, the positioning portion 311 is at least two sets, and the at least two sets of positioning portions 311 are spaced apart along the axial direction of the first end cap 31.

[0058] Specifically, the positioning part 311 is disposed on the outer peripheral wall of the first end cover 31 to press against the outer peripheral wall of the first end cover 31 and the inner peripheral wall of the filter element housing 1, and as shown... Figure 1 and Figure 3As shown, the positioning part 311 can be configured as at least two groups, that is, the positioning part 311 can be configured as two groups, three groups or four groups, etc. In this embodiment, the positioning part 311 is configured as two groups. In actual configuration, the two groups of positioning parts 311 can be configured as the same or different. That is, both groups of positioning parts 311 can be constructed as a ring structure, or both can be configured as multiple positioning parts 311 distributed circumferentially. Alternatively, one group can be constructed as a ring structure, and the other group can be configured as multiple positioning parts 311 distributed circumferentially, thereby improving the flexibility of configuration.

[0059] Furthermore, at least two sets of positioning portions 311 are spaced apart along the axial direction of the first end cover 31, so that at least two points along the axial direction of the first end cover 31 can be pressed against the inner peripheral wall of the filter element housing 1 by the positioning portions 311, thereby improving the structural strength of the first end cover 31 and the filter element housing 1. Both sets of positioning portions 311 are pressed between the inner peripheral wall of the filter element housing 1 and the outer peripheral wall of the first end cover 31, so that the force can be transmitted through the two sets of positioning portions 311 respectively, thereby reducing the magnitude of the force transmitted to each set of positioning portions 311, and extending the service life of the positioning portions 311.

[0060] In some embodiments, each group of positioning parts 311 is provided in multiples, and the multiple positioning parts 311 are distributed circumferentially spaced along the first end cover 31.

[0061] Specifically, the positioning parts 311 are configured in two sets and are spaced apart along the axial direction of the first end cover 31, and as shown in the figure. Figure 3 As shown, each group of positioning parts 311 can be configured as multiple, that is, each group of positioning parts 311 can be configured as two, three or four, etc. The number of positioning parts 311 in the two groups can be the same or different. In this embodiment, both groups of positioning parts 311 are configured as four.

[0062] Furthermore, multiple positioning parts 311 are spaced apart along the circumference of the first end cover 31, that is, multiple points of the first end cover 31 along the circumference can be pressed against the inner circumferential wall of the filter element housing 1 by the positioning parts 311, and at least two points of the first end cover 31 along the axial direction can be pressed against the inner circumferential wall of the filter element housing 1 by the positioning parts 311, thereby enabling multiple points of the outer circumferential wall of the first end cover 31 to be pressed against the inner circumferential wall of the filter element housing 1 by the multiple positioning parts 311, so as to improve the structural strength of the first end cover 31 and the filter element housing 1.

[0063] In addition, the force can be transmitted along the multiple positioning parts 311 of each group to reduce the force on each positioning part 311 and extend the service life of the positioning part 311. The positioning parts 311 distributed circumferentially are all equally spaced, that is, the positioning parts 311 of each group are equally spaced on the outer peripheral wall of the first end cover 31, so that the force on each positioning part 311 is equal, so as to avoid the situation that the single positioning part 311 is too stressed and breaks, and ensure the reliability of the positioning part 311.

[0064] In some embodiments, a set of positioning portions 311 are located at one end of the first end cap 31 near the support cylinder 33, and a positioning flange 313 is formed on the outer side of the positioning portions 311, at least a portion of the positioning flange 313 being located on the outer side of the support cylinder 33.

[0065] Specifically, the positioning part 311 is configured as at least two sets, and the at least two sets of positioning parts 311 are distributed at intervals along the axial direction of the first end cover 31 on the outer peripheral wall of the first end cover 31. One set of positioning parts 311 can be set at the end of the first end cover 31 near the support cylinder 33, and the other set of positioning parts 311 can be set at the middle part of the first end cover 31 along the axial direction. The end of the first end cover 31 away from the support cylinder 33 is connected to the filter element housing 1, so that the spacing between the support points of the first end cover 31 along the axial direction is equal, so as to ensure that each set of positioning parts 311 is subjected to balanced force, avoid the situation of excessive force on one set of positioning parts 311 leading to breakage, deformation, etc., and extend the service life.

[0066] Furthermore, a positioning flange 313 is formed on the outer side of a set of positioning portions 311 located at the end of the first end cover 31 near the support cylinder 33. The positioning flange 313 can be provided to extend along the axial direction of the first end cover 31 on the outer side of the positioning portion 311, so that the side of the positioning flange 313 away from the positioning portion 311 can fit against the inner peripheral wall of the filter element housing 1 to increase the contact area. The end of the first end cover 31 near the support cylinder 33 is connected to the support cylinder 33, so that the end of the first end cover 31 is subjected to greater force. The positioning flange 313 can improve the support effect of the positioning portion 311, and at least a part of the positioning flange 313 is located on the outer side of the support cylinder 33, which can ensure the installation reliability of the first end cover 31 and the support cylinder 33.

[0067] In some embodiments, one end of the filter housing 1 is provided with an assembly port 15, and a detachable connecting end cap 2 is provided at the assembly port 15. The first filter assembly 3 and the second filter assembly 4 are both adapted to be installed into the filter housing 1 from the assembly port 15. The positioning part 311 is formed with a guide slope 312, which is used to guide and cooperate with the filter housing 1 when the first end cap 31 is installed.

[0068] Specifically, the filter housing 1 is located on the outermost side of the filter structure 100, and as shown in the figure. Figure 1As shown, one end of the filter element housing 1 is provided with an assembly port 15. The assembly port 15 is open, so that the first filter assembly 3 and the second filter assembly 4 can extend into the filter element housing 1 through the open side of the assembly port 15 for installation inside the filter element housing 1. A connecting end cap 2 is provided at the assembly port 15. The connecting end cap 2 can be installed at the assembly port 15 and can press the first filter assembly 3 and the second filter assembly 4 against the inner wall of the filter element housing 1 to ensure the reliability of the installation of the first filter assembly 3 and the second filter assembly 4.

[0069] In addition, the connecting end cap 2 is designed to be detachable relative to the assembly port 15, so that the user can replace the first filter component 3 and the second filter component 4 to reduce the cost of use. The connecting end cap 2 is provided with a handle 21 on the side away from the filter housing 1. The handle 21 protrudes outward, so that the user can hold the handle 21 to perform operations such as installation and disassembly of the filter structure 100, thereby improving the ease of use.

[0070] In actual setup, the connecting end cap 2 can also be welded to the assembly port 15 as needed to ensure the reliable sealing of the filter element housing 1.

[0071] Furthermore, the outer peripheral wall of the first end cap 31 is provided with a positioning part 311. When the first filter assembly 3 is installed in the filter element housing 1, the positioning part 311 can press against the inner peripheral wall of the filter element housing 1 to ensure the accuracy of the installation of the first end cap 31. The positioning part 311 is formed with a guide slope 312. The guide slope 312 is used to guide and cooperate with the filter element housing 1 when the first end cap 31 is installed. The guide slope 312 is located on the side of the positioning part 311 facing the installation direction, so that the size of the positioning part 311 protruding outward from the outer peripheral wall of the first end cap 31 gradually increases along the installation direction. That is, the protrusion size of the positioning part 311 on the side closer to the installation direction is the smallest, which makes it easier for the first end cap 31 to be placed in the filter element housing 1 and improves the installation efficiency.

[0072] In some embodiments, a first reinforcing rib 314 is provided inside the first end cap 31 near the end of the support cylinder 33.

[0073] Specifically, such as Figure 1 As shown, one end of the first end cap 31 is connected to the filter element housing 1, and the other end is connected to the support cylinder 33, and as... Figure 4As shown, the first end cap 31 is provided with a first reinforcing rib 314. The first reinforcing rib 314 is located inside the first end cap 31 near the end of the support cylinder 33. The support cylinder 33 is connected to the first end cap 31. When water flows through the support cylinder 33, it will exert a force on the support cylinder 33. The force can be transmitted through the support cylinder 33 to the connection between the first end cap 31 and the support cylinder 33. By providing a first reinforcing rib 314 inside the first end cap 31 near the end of the support cylinder 33, the structural strength of the first end cap 31 near the end of the support cylinder 33 can be improved, avoiding deformation of the first end cap 31 under stress, ensuring reliability and extending service life.

[0074] In other embodiments, the outer peripheral wall of the support cylinder 33 is provided with a second reinforcing rib 331, such as Figure 5 As shown, the second reinforcing rib 331 extends along the axial direction of the support cylinder 33, and the water flow also flows along the axial direction of the support cylinder 33, thereby improving the structural strength of the support cylinder 33 in the axial direction, ensuring the reliability of the support cylinder 33 and extending its service life.

[0075] In some embodiments, a plurality of first reinforcing ribs 314 are provided, and the plurality of first reinforcing ribs 314 are distributed at intervals along the circumference of the first end cap 31.

[0076] Specifically, such as Figure 4 As shown, there are multiple first reinforcing ribs 314, that is, there can be two, three or four first reinforcing ribs 314, etc. The multiple first reinforcing ribs 314 can be the same or different, and the multiple first reinforcing ribs 314 are distributed at intervals along the circumference of the first end cover 31. That is, the multiple first reinforcing ribs 314 can respectively strengthen the structure of multiple points in the circumference of the first end cover 31 near the support cylinder 33, thereby ensuring the reliability of the connection between the first end cover 31 and the support cylinder 33.

[0077] In addition, the force can be transmitted through multiple first reinforcing ribs 314 to reduce the magnitude of the force on each first reinforcing rib 314, ensuring the reliability of the first reinforcing rib 314. The spacing between two adjacent first reinforcing ribs 314 is equal, so that the force on each first reinforcing rib 314 is also equal, avoiding the deformation caused by excessive force on a single first reinforcing rib 314, and extending its service life.

[0078] In other embodiments, a plurality of second reinforcing ribs 331 are provided, and the plurality of second reinforcing ribs 331 are distributed at intervals along the circumference of the support cylinder 33.

[0079] Specifically, such as Figure 5As shown, there are multiple second reinforcing ribs 331, that is, there can be two, three or four second reinforcing ribs 331, etc. The multiple second reinforcing ribs 331 can be the same or different, and the multiple second reinforcing ribs 331 are distributed at intervals along the circumference of the support cylinder 33. That is, the multiple second reinforcing ribs 331 can respectively strengthen the structure of multiple parts of the support cylinder 33 in the circumference, thereby ensuring the reliability of the support cylinder 33.

[0080] In addition, the force can be transmitted through multiple second reinforcing ribs 331 to reduce the magnitude of the force on each second reinforcing rib 331, ensuring the reliability of the second reinforcing rib 331. The spacing between two adjacent second reinforcing ribs 331 is equal, so that the force on each second reinforcing rib 331 is also equal, avoiding the deformation caused by excessive force on a single second reinforcing rib 331, and extending its service life.

[0081] In other embodiments, the first reinforcing rib 314 is disposed on the inner end face of the first end cover 31 and extends along the axial direction of the first end cover 31.

[0082] Specifically, such as Figure 4 As shown, a plurality of first reinforcing ribs 314 are provided on the inner end face of the first end cap 31 near the support cylinder 33. The plurality of first reinforcing ribs 314 are distributed circumferentially. In this embodiment, the plurality of first reinforcing ribs 314 are configured differently. Some first reinforcing ribs 314 are only provided on the inner end face of the first end cap 31 and extend radially, while some first reinforcing ribs 314 are provided on the inner end face of the first end cap 31 and can extend axially along the first end cap 31. That is, some first reinforcing ribs 314 are longer and some first reinforcing ribs 314 are shorter, so that the force can be partially applied to the inner end face of the first end cap 31 through the first reinforcing ribs 314, and can also be partially transmitted to the side wall of the first end cap 31 through the first reinforcing ribs 314 to act on the side wall of the first end cap 31. In this way, the force can be dispersed to weaken the effect of the force, extend the service life of the first end cap 31, and improve the reliability of use.

[0083] In some embodiments, the wall thickness of the support cylinder 33 is set as a, and satisfies: a≥1.8mm.

[0084] Specifically, the wall thickness of the support cylinder 33 is set as 'a', and satisfies: a≥1.8mm. That is, the wall thickness 'a' of the support cylinder 33 can be set to 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm or 2.5mm, etc. Setting the wall thickness 'a' of the support cylinder 33 to satisfy: a≥1.8mm makes the wall thickness of the support cylinder 33 thicker, thereby improving the structural strength of the support cylinder 33, ensuring the reliability of the support cylinder 33 in use, and extending the service life of the support cylinder 33.

[0085] In other embodiments, the thickness of the end of the first end cap 31 near the support cylinder 33 is set as b, and satisfies: b≥2.5mm.

[0086] Specifically, the thickness of the end of the first end cap 31 near the support cylinder 33 is set as b, and satisfies: b≥2.5mm. That is, the thickness b of the end of the first end cap 31 near the support cylinder 33 can be set to 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, 3.1mm or 3.2mm, etc. The end of the first end cap 31 near the support cylinder 33 is connected to the support cylinder 33. The force on the support cylinder 33 can be transmitted to the end of the first end cap 31 near the support cylinder 33. Setting the thickness b of the end of the first end cap 31 near the support cylinder 33 to satisfy b≥2.5mm can improve the structural strength of the end of the first end cap 31 near the support cylinder 33, thereby ensuring the reliability of the connection between the first end cap 31 and the support cylinder 33 and extending the service life.

[0087] In some embodiments, the first inlet 11 and the first outlet 12 are both located at the same end of the filter housing 1, and the first end cap 31 is provided with an intermediate communication port 315. The first flow path 35 includes a first flow section 351, a second flow section 352, and a filtration space 353. The first flow section 351 is connected to the first inlet 11, and the second flow section 352 is connected to the first outlet 12. A portion of the first flow section 351 is formed between the first end cap 31 and the filter housing 1, and another portion is formed between the support cylinder 33 and the filter housing 1. The filtration space 353 is formed in the support cylinder 33 and is provided with the first filter element 34. The second flow section 352 is formed between the first end cap 31 and the second filter assembly 4. The filtration space 353 and the second flow section 352 are connected through the intermediate communication port 315.

[0088] Specifically, the filter housing 1 is provided with a first inlet 11 and a first outlet 12. A first flow path 35 is formed between the first inlet 11 and the first outlet 12, which passes through the first filter assembly 3 to filter the water flow once. The first inlet 11 and the first outlet 12 are both located at the same end of the filter housing 1, making the first flow path 35 longer, thereby improving the filtration effect on the water flow.

[0089] And such as Figure 2As shown, the first flow path 35 includes a first flow section 351, a second flow section 352, and a filtration space 353. The first flow section 351 is connected to the filtration space 353, the filtration space 353 is connected to the second flow section 352, the first flow section 351 is connected to the first inlet 11, and the second flow section 352 is connected to the first outlet 12, so that water can flow from the first inlet 11 to the first flow section 351, and then to the filtration space 353, so that it can flow through the filtration space 353 to the second flow section 352. The water in the second flow section 352 can flow out of the filter cartridge housing 1 through the second outlet 14.

[0090] In addition, a portion of the first flow section 351 is formed between the first end cap 31 and the filter element housing 1, and another portion is formed between the support cylinder 33 and the filter element housing 1. That is, the first end cap 31 and the filter element housing 1 are spaced apart, and the support cylinder 33 and the filter element housing 1 are also spaced apart, so that when the water flows into the first flow section 351 through the first inlet 11, it can flow through the first end cap 31 and the support cylinder 33 in sequence. The filtration space 353 is formed in the support cylinder 33 and is provided with the first filter element 34. That is, after the water flows into the support cylinder 33, it can be filtered through the first filter element 34.

[0091] Furthermore, the first end cap 31 is provided with a middle connecting port 315, which is open towards the inside of the support cylinder 33, and the filtration space 353 is connected to the second flow section 352 through the middle connecting port 315, so that the filtered water can flow through the middle connecting port 315 into the second flow section 352. The second flow section 352 is formed between the first end cap 31 and the second filter assembly 4, so that the filtered water can flow along the outer peripheral wall of the second filter assembly 4 and the inner peripheral wall of the first end cap 31, so as to flow out of the filter element housing 1 through the first outlet 12, ensuring the reliability of the flow.

[0092] In some embodiments, the first inlet 11, the first outlet 12, the second inlet 13, and the second outlet 14 are all located at the same end of the filter housing 1.

[0093] Specifically, the filter housing 1 is provided with a first inlet 11, a first outlet 12, a second inlet 13, and a second outlet 14, such as... Figures 1-2 As shown, one end of the filter element housing 1 is provided with an assembly port 15. The first filter assembly 3 and the second filter assembly 4 can be installed into the filter element housing 1 through the assembly port 15. The first inlet 11, the first outlet 12, the second inlet 13 and the second outlet 14 are all located at the other end of the filter element housing 1, that is, the first inlet 11, the first outlet 12, the second inlet 13 and the second outlet 14 are all located at the same end of the filter element housing 1.

[0094] This increases the length of the water flow path within the filter housing 1, thereby improving the filtration effect. Furthermore, placing the first inlet 11, first outlet 12, second inlet 13, and second outlet 14 at the same end of the filter housing 1 facilitates connection between the filter structure 100 and external pipelines, ensuring the neatness of the water-using equipment 100. Additionally, it allows the assembly port 15 to be positioned away from the first inlet 11, first outlet 12, second inlet 13, and second outlet 14, preventing the installation of the first filter assembly 3 and the second filter assembly 4 from affecting the reliability of the connection between the first inlet 11, first outlet 12, second inlet 13, and second outlet 14 and other pipelines, thus ensuring the reliability of the filter structure 100.

[0095] In some embodiments, the end face of the first end cap 31 facing the support cylinder 33 is provided with a limiting groove 316 that is open in the axial direction, and the end of the support cylinder 33 extends into the limiting groove 316.

[0096] Specifically, one end of the first end cap 31 is connected to the filter element housing 1, and the other end is connected to the support cylinder 33, and as shown in the figure. Figure 1 As shown, a limiting groove 316 is provided at the end of the first end cap 31 facing the support cylinder 33. The limiting groove 316 is open to the support cylinder 33, and the end of the support cylinder 33 can extend into the limiting groove 316 so that the end of the support cylinder 33 can be inserted and matched with the limiting groove 316 of the first end cap 31, which facilitates the installation of the support cylinder 33 and the first end cap 31. After the end of the support cylinder 33 extends into the limiting groove 316, the first end cap 31 and the support cylinder 33 can be fixed by welding or other means to ensure the reliability of the connection.

[0097] In addition, the first filter assembly 3 is also provided with a second end cap 32. The second end cap 32 and the first end cap 31 are spaced apart along the axial direction of the support cylinder 33, and the two ends of the first filter element 34 are supported and pressed between the first end cap 31 and the second end cap 32. The first end cap 31 and the second end cap 32 are also provided with limiting grooves. The two ends of the first filter element 34 can be placed in the limiting grooves respectively to ensure the reliability of the installation of the first filter element 34. The limiting groove 316 of the support cylinder 33 is arranged around the limiting groove of the first filter element 34 so that the first filter element 34 can be installed in the support cylinder 33.

[0098] In other embodiments, the second filter assembly 4 is provided with an inner cylinder 41, a third end cap 42, a fourth end cap 43, and a second filter element 44. One end of the inner cylinder 41 is connected to the filter element housing 1 to define a receiving cavity. The third end cap 42 and the fourth end cap 43 are both installed in the receiving cavity and are axially spaced apart within the receiving cavity. The third end cap 42 is connected to the filter element housing 1. The second filter element 44 is supported and pressed against the third end cap 42 and the fourth end cap 43. The second flow path 45 includes an inlet section and an outlet section. The inlet section is located between the outer peripheral wall of the second filter element 44 and the inner peripheral wall of the inner cylinder 41, and the outlet section is located within the inner peripheral wall of the second filter element 44, thereby allowing water to flow through the second filter element 44 to filter the water.

[0099] Furthermore, the outer peripheral wall of the inner cylinder 41 is provided with multiple outwardly protruding support portions 411, which press against the inner peripheral wall of the first end cover 31. When the inner cylinder 41 is installed inside the first end cover 31, the support portions 411 can press against the inner peripheral wall of the first end cover 31 to ensure the accuracy of the installation of the inner cylinder 41. The support portions 411 can also support the inner peripheral wall of the first end cover 31 and the outer peripheral wall of the inner cylinder 41 to improve the structural strength of the inner cylinder 41 and the first end cover 31 and ensure the reliability of use.

[0100] In addition, the filter cartridge housing 1 is provided with a sealing groove 5. There are three sealing grooves 5, and the three sealing grooves 5 are installed one after another along the radial direction. The first end cover 31 is installed outside the inner cylinder 41, the inner cylinder 41 is installed outside the third end cover 42, and the first end cover 31, the inner cylinder 41 and the third end cover 42 are respectively inserted into the corresponding sealing groove 5. The sealing groove 5 is also provided with a sealing element 51, which can be set as a sealing ring, etc., to ensure the independence of the first flow path 35 and the second flow path 45, thereby ensuring the reliability of water flow filtration.

[0101] The thickness of the outer wall of the sealing groove 5, which is inserted into the inner cylinder 41, is set to be greater than 2.5 mm. This can improve the structural strength of the sealing groove 5, prevent the sealing element 51 from falling out, and improve the sealing reliability. In order to ensure the structural strength of the inner cylinder 41, when the inner diameter of the inner cylinder 41 is set to be less than 45 mm, the wall thickness of the inner cylinder 41 can be set to be greater than or equal to 2 mm and less than 3 mm. When the inner diameter of the inner cylinder 41 is set to be greater than or equal to 45 mm and less than or equal to 60 mm, the wall thickness of the inner cylinder 41 can be set to be greater than or equal to 3 mm and less than or equal to 4 mm.

[0102] The present invention also proposes a water-using device 1000.

[0103] The water-using device 1000 according to an embodiment of the present invention is provided with a filter element structure 100 as described above.

[0104] Specifically, such as Figure 6As shown, the water-using equipment 1000 is equipped with a mounting bracket 101. The filter element structure 100 can be installed on the mounting bracket 101, improving installation reliability. The filter element structure 100 is movable relative to the mounting bracket 101, allowing it to be disassembled relative to the water-using equipment 1000. This enables users to replace the filter element structure 100, improving ease of use and ensuring the filtration effect of the filter element structure 100. The RO filter element 102 can also be installed on the mounting bracket 101, making the filter element structure 100 and the RO filter element 102 closer together, thus shortening the length of the intermediate pipeline and reducing installation costs.

[0105] In addition, the water-using device 1000 is provided with a panel 103, which can be located on the front of the water-using device 1000 to display the status of the water-using device 1000, etc., improving the ease of use. The panel 103 is provided with a water outlet 104, which can be connected to the second outlet 14 of the filter structure 100, so that the water filtered by the filter structure 100 can flow directly from the water outlet 104 for users to drink, etc., improving the user experience.

[0106] The water-using device 1000 according to an embodiment of the present invention is provided with a filter element structure 100. The filter element structure 100 integrates a first filter component 3 and a second filter component 4, which can perform secondary filtration on the water flow to ensure the filtration effect of the water flow, improve the health of the user, and increase the integration of the filter element structure 100, reduce the space occupied, and improve the ease of installation. At the same time, the first end cap 31 and the support cylinder 33 of the first filter component 3 are distributed along the length direction of the filter element housing 1, so that the lengths of the first end cap 31 and the support cylinder 33 are relatively short, so as to ensure the structural strength of the first end cap 31 and the support cylinder 33, thereby ensuring the filtration efficiency, improving the reliability of use, and having a simple structure, reducing the installation cost, improving the use effect, and having a wider range of applications.

[0107] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "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 the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0108] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A filter element structure, characterized in that, include: A filter element housing having a first inlet, a first outlet, a second inlet, and a second outlet; A first filter assembly is installed inside the filter element housing, and a first flow path is formed between the first inlet and the first outlet, passing through the first filter assembly. The second filter assembly is installed inside the filter element housing, and a second flow path is formed between the second inlet and the second outlet, passing through the second filter assembly. The first filter assembly includes a first end cap and a support cylinder. The first end cap and the support cylinder are distributed along the length direction of the filter element housing. The second filter assembly is installed inside the first end cap. Along the length direction of the filter element housing, one end of the first end cap is connected to the filter element housing, and the other end of the first end cap is connected to the support cylinder. The end of the support cylinder away from the first end cap is also connected to the filter element housing. The first inlet and the first outlet are both located at the same end of the filter element housing, and the first end cover has a middle connecting port; The first flow path includes a first flow segment, a second flow segment, and a filtration space. The first flow segment is connected to the first inlet, and the second flow segment is connected to the first outlet. A portion of the first flow segment is formed between the first end cap and the filter element housing, and another portion is formed between the support cylinder and the filter element housing. The filtration space is formed inside the support cylinder and is provided with a first filter element. The second flow segment is formed between the first end cap and the second filter assembly. The filtration space and the second flow segment are connected through the intermediate communication port.

2. The filter element structure according to claim 1, characterized in that, The outer peripheral wall of the first end cap is provided with an outwardly protruding positioning part, which is adapted to press against the inner peripheral wall of the filter element housing.

3. The filter element structure according to claim 2, characterized in that, The positioning part is in at least two sets, and the at least two sets of positioning parts are spaced apart along the axial direction of the first end cover.

4. The filter element structure according to claim 3, characterized in that, Each group of positioning parts is provided in multiples, and the multiple positioning parts are distributed at intervals along the circumference of the first end cover.

5. The filter element structure according to claim 3, characterized in that, One set of the positioning parts is located at one end of the first end cap near the support cylinder, and a positioning flange is formed on the outer side of the positioning part, at least a portion of the positioning flange being located on the outer side of the support cylinder.

6. The filter element structure according to claim 3, characterized in that, One end of the filter element housing is provided with an assembly port, and a detachable connecting end cap is provided at the assembly port. Both the first filter assembly and the second filter assembly are adapted to be installed into the filter element housing from the assembly port. The positioning part has a guide slope, which is used to guide and cooperate with the filter element housing when the first end cap is installed.

7. The filter element structure according to claim 1, characterized in that, The first end cap is provided with a first reinforcing rib near the end of the support cylinder; And / or, the outer peripheral wall of the support cylinder is provided with a second reinforcing rib.

8. The filter element structure according to claim 7, characterized in that, The first reinforcing rib is provided as a plurality of ribs, and the plurality of first reinforcing ribs are distributed at intervals along the circumference of the first end cap; And / or, the second reinforcing rib is provided as a plurality of ribs, and the plurality of second reinforcing ribs are distributed at intervals along the circumference of the support cylinder; And / or, the first reinforcing rib is disposed on the inner end face of the first end cover and extends along the axial direction of the first end cover.

9. The filter element structure according to claim 1, characterized in that, The wall thickness of the support cylinder is set as a, and satisfies: a≥1.8mm; And / or, the thickness of the end of the first end cap near the support cylinder is set as b, and satisfies: b≥2.5mm.

10. The filter element structure according to claim 1, characterized in that, The first inlet, the first outlet, the second inlet, and the second outlet are all located at the same end of the filter element housing.

11. The filter element structure according to claim 1, characterized in that, The first end cap has an axially open limiting groove on its end face facing the support cylinder, and the end of the support cylinder extends into the limiting groove.

12. A water-using device, characterized in that, The filter element structure is provided as described in any one of claims 1-11.

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