Filter element structure and water utilization equipment

Abstract

The embodiment of the invention discloses a filter element structure and water utilization equipment, and the filter element structure comprises a filter element shell which is provided with a first inlet, a first outlet, a second inlet and a second outlet; the first filter assembly is mounted in the filter element shell, and a first flow path passing through the first filter assembly is formed between the first inlet and the first outlet; a second flow path passing through the second filtering assembly is formed between the second inlet and the second outlet; wherein the first filtering assembly comprises a first end cover and a supporting cylinder, the first end cover and the supporting cylinder are distributed in the length direction of the filter element shell, and the second filtering assembly is installed in the first end cover. According to the filter element structure, the water flow filtering effect can be guaranteed, the integration degree of the filter element structure can be improved, the occupied space is reduced, the installation convenience is improved, meanwhile, the structural strength of the first end cover and the supporting cylinder can be guaranteed, the use reliability is improved, the structure is simple, and the setting cost can be reduced.

Description

Technical Field

[0001] The invention relates to the field of kitchen heating technology, and in particular to a filter core structure and water-using equipment having the filter core structure. Background Art

[0002] With the diversification of life needs, small and multifunctional water-using equipment is more popular among people. It is small in size, occupies less space, and can be equipped with more functions to meet the drinking needs of different groups of people. Existing water-using equipment can be provided with a composite filtering structure. The composite filtering structure is small in size and easy to install. It can filter the water flowing to the water-using equipment multiple times so that users can directly drink the water. It is easy to use and can improve the cleanliness of the water flow to improve the user experience. However, the existing composite filtering structure has a complex structure and high manufacturing cost, and the structural strength of its internal structure is low. It is prone to deformation and other problems, which leads to obstruction of water flow, affects the filtering efficiency, and has low reliability in use. There is room for improvement. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a filter element structure with high integration, small space occupation, easy installation, guaranteed filtering effect on water flow, improved use health, simple structure, reduced installation cost, improved structural strength, guaranteed filtering efficiency, and improved use reliability.

[0004] According to an embodiment of the present invention, the filter element structure includes: a filter element housing, the filter element housing having a first inlet, a first outlet, a second inlet and a second outlet; a first filter component, the first filter component is installed in the filter element housing, and a first flow path passing through the first filter component is formed between the first inlet and the first outlet; a second filter component, the second filter component is installed in the filter element housing, and a second flow path passing through the second filter component is formed between the second inlet and the second outlet; wherein the first filter component includes 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 element housing, and the second filter component is installed in the first end cover.

[0005] According to the filter element structure of the embodiment of the present invention, the first filter component and the second filter component are integrated to perform secondary filtration on the water flow to ensure the filtering effect on the water flow, improve the health of use, and improve the integration of the filter element structure, reduce the occupied space, and improve the convenience of installation. At the same time, the first end cover and the support tube of the first filter component are distributed along the length direction of the filter element housing, so that the length of the first end cover and the support tube are both short to ensure the structural strength of the first end cover and the support tube, thereby ensuring the filtering efficiency and improving the reliability of use. The structure is simple, which can reduce the setting cost, and the use effect is better and the scope of application is wider.

[0006] According to the filter element structure of some embodiments of the present invention, the outer peripheral wall of the first end cover is provided with a positioning portion protruding outward, and the positioning portion is suitable for pressing against the inner peripheral wall of the filter element housing.

[0007] According to the filter element structure of some embodiments of the present invention, the positioning portions are provided in at least two groups, and the at least two groups of positioning portions are spaced apart and distributed along the axial direction of the first end cover.

[0008] According to the filter element structure of some embodiments of the present invention, each group of the positioning portions is provided in plurality, and the plurality of the positioning portions are distributed and spaced apart along the circumference of the first end cover.

[0009] According to the filter element structure of some embodiments of the present invention, one group of the positioning parts is located at one end of the first end cover close to the support tube, and a positioning flange is formed on the outer side of the positioning part, and at least a part of the positioning flange is located on the outer side of the support tube.

[0010] According to the filter element structure of some embodiments of the present invention, one end of the filter element housing is provided with an assembly port, and a detachable connection end cap is provided at the assembly port, and the first filter assembly and the second filter assembly are both suitable for being installed into the filter element housing from the assembly port;

[0011] Wherein, the positioning portion is formed with a guiding inclined surface, and the guiding inclined surface is used for guiding and cooperating with the filter element housing when the first end cover is installed.

[0012] According to the filter element structure of some embodiments of the present invention, a first reinforcing rib is provided in the first end cover close to one end of the support tube;

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

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

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

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

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

[0018] And / or, the thickness of the end portion of the first end cover close to the support tube is set to b, and satisfies: b≥2.5 mm.

[0019] According to the filter element structure of some embodiments of the present invention, the first inlet and the first outlet are both provided at the same end of the filter element housing, and the first end cover is provided with an intermediate communication port;

[0020] Wherein, the first flow path includes a first flow section, a second flow section and a filter space, the first flow section is connected to the first inlet, the second flow section is connected to the first outlet, a part of the first flow section is formed between the first end cover and the filter element housing and another part is formed between the support tube and the filter element housing, the filter space is formed in the support tube and is provided with a first filter element, the second flow section is formed between the first end cover and the second filter assembly, and the filter space is connected to the second flow section through the intermediate connecting port.

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

[0022] According to the filter element structure of some embodiments of the present invention, a limiting groove open in the axial direction is provided on the end surface of the first end cover facing the supporting tube, and the end of the supporting tube extends into the limiting groove.

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

[0024] The water-using equipment according to the embodiment of the present invention is provided with any of the filter element structures described above.

[0025] The water-using equipment and the filter element structure described above have the same advantages as those of the prior art, which will not be described in detail here.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0032] Figure 5 is a schematic structural diagram of a support tube according to an embodiment of the present invention;

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

[0034] Reference numerals:

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

[0036] Filter housing 1, first inlet 11, first outlet 12, second inlet 13, second outlet 14, assembly port 15, connecting end cap 2, hand-held portion 21,

[0037] First filter assembly 3, first end cover 31, positioning portion 311, guide slope 312, positioning flange 313, first reinforcing rib 314, middle communication port 315, limiting groove 316, second end cover 32, support tube 33, second reinforcing rib 331, first filter element 34, first flow path 35, first flow section 351, second flow section 352, filtering space 353,

[0038] The second filter assembly 4 , the inner tube 41 , the support portion 411 , the third end cover 42 , the fourth end cover 43 , the second filter element 44 , the second flow path 45 , the sealing groove 5 , and the sealing member 51 . DETAILED DESCRIPTION

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

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Reference below Figure 1-Figure 6 The filter element structure 100 according to an embodiment of the present invention is described to have high integration, small space occupation, and is easy to install. It can ensure the filtering effect on the water flow and improve the health of use. It has a simple structure, can reduce the setting cost, improve the structural strength, ensure the filtering efficiency, and improve the reliability of use.

[0043] like Figure 1-Figure 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 element housing 1 has a first inlet 11, a first outlet 12, a second inlet 13 and a second outlet 14. The first filter component 3 is installed in the filter element housing 1, and a first flow path 35 passing through the first filter component 3 is formed between the first inlet 11 and the first outlet 12. The second filter component 4 is installed in the filter element housing 1, and a second flow path 45 passing through the second filter component 4 is formed between the second inlet 13 and the second outlet 14. The first filter component 3 includes a first end cover 31 and a support tube 33. The first end cover 31 and the support tube 33 are distributed along the length direction of the filter element housing 1, and the second filter component 4 is installed in the first end cover 31.

[0045] Among them, the filter element structure 100 can be set in the water-using equipment 1000 to filter the water flow flowing to the water-using equipment 1000. The water-using equipment 1000 can be set as a desktop machine, a vertical machine, an embedded machine or a pipeline machine, etc., and the water-using equipment 1000 can also be provided with a heating module, a cooling module and a water tank module, etc. 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 operations such as ice making, and the water tank module can store water, so that the water-using equipment 1000 can realize functions such as outputting hot water, cold water and ice cubes. The water-using equipment 1000 can also be provided with a coffee module, a soda water module and a tea module, etc., to meet various usage needs.

[0046] Specifically, the filter element structure 100 is provided with a filter element housing 1, which is arranged at the outermost side of the filter element structure 100, and can provide an installation space for the internal structure of the filter element structure 100, so as to provide support and protection for the inside of the filter element structure 100, ensure the operating reliability of the filter element structure 100, and facilitate the installation of the filter element structure 100 in the water-using 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 the external water flow can flow into the filter element housing 1, and can flow from the filter element housing 1 to the outside, so that the external water flow can be transported to the subsequent flow path after being filtered in the filter element structure 100.

[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 in 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 clamping to ensure the installation reliability of the first filter component 3. The second filter component 4 is installed in 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 clamping to ensure the installation reliability of the second filter component 4.

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

[0049] The first outlet 12 is connected to the intermediate pipeline of the outside world. The intermediate pipeline is provided with a booster pump and an RO filter element 102, etc., which can ensure the reliability of water transportation and purify the water to ensure healthy water use. The intermediate pipeline is also connected to the second inlet 13, so that the water in the intermediate pipeline can flow to the second flow path 45 through the second inlet 13, and the second flow path 45 flows through the second filter component 4, so that the second filter component 4 can filter the water for a second time. The second outlet 14 can be connected to the water outlet pipeline, so that the water filtered twice can be used for ice making or direct drinking, etc., thereby improving the health of use.

[0050] In this way, the first filter component 3 and the second filter component 4 are both installed in the filter element housing 1, which can improve the integration of the filter element structure 100, reduce the occupied space, improve the convenience of installation, and enable the filter element structure 100 to filter the water flow twice, thereby improving the filtering effect, thereby improving the health of use and enhancing the user experience.

[0051] The first filter assembly 3 is provided with a first end cover 31 and a support tube 33, and the first end cover 31 and the support tube 33 together with the filter element housing 1 define a first flow path 35 to ensure the reliability of water flow, and the first end cover 31 and the support tube 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 cover 31 is connected to the filter element housing 1, and the other end is connected to the support tube 33, and the end of the support tube 33 away from the first end cover 31 can also be connected to the filter element housing 1, so that the first end cover 31 and the support tube 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 tube 33 and the first end cover 31 along the length direction of the filter element housing 1 can be shortened to simplify the structure of the first end cover 31 and the support tube 33, reduce manufacturing consumables, and thus save installation costs, and the length of the first end cover 31 and the support tube 33 is set to be shorter, so that when the water flows through the first end cover 31 and the support tube 33, the pressure generated on the first end cover 31 and the support tube 33 is smaller, so as to ensure the structural strength of the first end cover 31 and the support tube 33, and avoid deformation of the first end cover 31 and the support tube 33, which causes obstruction of water flow in the first flow path 35, thereby ensuring the filtration efficiency and improving the reliability of use, and the second filter component 4 is installed in the first end cover 31, which can further improve the integration of the filter element structure 100, reduce the occupied space, and improve the lightweight.

[0053] According to the filter element structure 100 of the embodiment of the present invention, the first filter component 3 and the second filter component 4 are integrated to perform secondary filtration on the water flow to ensure the filtering effect on the water flow and improve the health of use. The integration of the filter element structure 100 can be improved, the occupied space can be reduced, and the installation convenience can be improved. At the same time, the first end cover 31 and the support tube 33 of the first filter component 3 are distributed along the length direction of the filter element housing 1, so that the length of the first end cover 31 and the support tube 33 are both short to ensure the structural strength of the first end cover 31 and the support tube 33, thereby ensuring the filtering efficiency and improving the reliability of use. The structure is simple, the setting cost can be reduced, the use effect is better, and the scope of application is wider.

[0054] In some embodiments, the outer peripheral wall of the first end cover 31 is provided with a positioning portion 311 protruding outward, and the positioning portion 311 is suitable for pressing against the inner peripheral wall of the filter element housing 1.

[0055] Specifically, the first filter assembly 3 is installed in the filter housing 1, and the first filter assembly 3 is provided with a first end cover 31, that is, the first end cover 31 is also installed in the filter 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 portion 311, and the positioning portion 311 is protruding outward from the outer peripheral wall of the first end cover 31. The positioning portion 311 can be set as a positioning protrusion, a positioning column or a positioning plate, etc. One end of the positioning portion 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 portion 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] In this way, when the first filter component 3 is set in the filter element housing 1, the positioning portion 311 can be pressed against the inner wall of the filter element housing 1 to ensure that the first filter component 3 is installed according to the required trajectory, and the first filter component 3 can be installed at the required position in the filter element housing 1, thereby ensuring installation reliability and improving installation efficiency. In addition, the positioning portion 311 is pressed between the inner wall of the filter element housing 1 and the outer wall of the first end cover 31, which can improve the structural strength of the filter element housing 1 and the first end cover 31, thereby ensuring the reliability of the filter element structure 100.

[0057] In some embodiments, there are at least two groups of positioning portions 311 , and the at least two groups of positioning portions 311 are spaced apart and distributed along the axial direction of the first end cover 31 .

[0058] Specifically, the positioning portion 311 is disposed on the outer peripheral wall of the first end cover 31 to be pressed between the outer peripheral wall of the first end cover 31 and the inner peripheral wall of the filter element housing 1, and Figure 1 and Figure 3As shown, the positioning portions 311 can be set to at least two groups, that is, the positioning portions 311 can be set to two groups, three groups or four groups, etc. In the present embodiment, the positioning portions 311 are set to two groups. In actual settings, the two groups of positioning portions 311 can be set to be the same or different, that is, the two groups of positioning portions 311 can both be constructed as an annular structure, or can both be set to be a plurality of positioning portions 311 spaced apart along the circumferential direction. It is also possible to construct one of the two groups as an annular structure, and the other group as a plurality of positioning portions 311 spaced apart along the circumferential direction, so as to improve the setting flexibility.

[0059] Furthermore, at least two groups of positioning portions 311 are distributed and spaced apart along the axial direction of the first end cover 31, so that at least two locations of the first end cover 31 along the axial direction can be pressed against the inner circumferential wall of the filter element housing 1 through the positioning portions 311, so as to improve the structural strength of the first end cover 31 and the filter element housing 1, and the two groups of positioning portions 311 are pressed between the inner circumferential wall of the filter element housing 1 and the outer circumferential wall of the first end cover 31, so that the force can be transmitted through the two groups of positioning portions 311 respectively, and then the magnitude of the force transmitted to each group of positioning portions 311 can be weakened, so as to extend the service life of the positioning portions 311.

[0060] In some embodiments, each group of positioning portions 311 is provided in plurality, and the plurality of positioning portions 311 are spaced apart and distributed along the circumference of the first end cover 31 .

[0061] Specifically, the positioning portions 311 are arranged in two groups and are spaced apart and distributed along the axial direction of the first end cover 31, and as shown in FIG. Figure 3 As shown, each group of positioning parts 311 can be set to multiple, that is, each group of positioning parts 311 can be set to two, three or four, etc. The number of two groups of positioning parts 311 can be set to be the same or different. In the present embodiment, two groups of positioning parts 311 are each set to four.

[0062] Furthermore, multiple positioning portions 311 are distributed at intervals along the circumference of the first end cover 31, that is, multiple locations of the first end cover 31 along the circumference can be pressed against the inner circumferential wall of the filter element housing 1 through the positioning portions 311, and at least two locations of the first end cover 31 along the axial direction can be pressed against the inner circumferential wall of the filter element housing 1 through the positioning portions 311, thereby making it possible for multiple locations 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 through the multiple positioning portions 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 portions 311 of each group respectively to reduce the force on each positioning portion 311 and extend the service life of the positioning portion 311, and the spacing between the positioning portions 311 spaced apart along the circumferential direction is equal, that is, the positioning portions 311 of each group are evenly spaced on the outer peripheral wall of the first end cover 31, so that the force on each positioning portion 311 is equal, so as to avoid the situation where a single positioning portion 311 is subjected to excessive force and causes breakage, thereby ensuring the reliability of the positioning portion 311.

[0064] In some embodiments, one group of positioning portions 311 is located at one end of the first end cover 31 close to the support tube 33 , and a positioning flange 313 is formed on the outer side of the positioning portion 311 , and at least part of the positioning flange 313 is located on the outer side of the support tube 33 .

[0065] Specifically, the positioning portions 311 are arranged in at least two groups, and at least two groups of positioning portions 311 are spaced apart and distributed on the outer peripheral wall of the first end cover 31 along the axial direction of the first end cover 31, and one group of positioning portions 311 can be arranged at one end of the first end cover 31 close to the support tube 33, and the other group of positioning portions 311 can be arranged at the middle part of the first end cover 31 along the axial direction, and the end of the first end cover 31 away from the support tube 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 group of positioning portions 311 is subjected to balanced force, avoid one group of positioning portions 311 being subjected to excessive force, resulting in breakage, deformation, etc., and extend the service life.

[0066] Furthermore, a positioning flange 313 is formed on the outer side of a group of positioning portions 311 located at one end of the first end cover 31 close to the support tube 33. The positioning flange 313 can be extended 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 be fitted with the inner circumferential wall of the filter element housing 1 to increase the contact area. The end of the first end cover 31 close to the support tube 33 is connected to the support tube 33, so that the end of the first end cover 31 is subjected to greater force. The positioning flange 313 can improve the supporting effect of the positioning portion 311, and at least part of the positioning flange 313 is located on the outer side of the support tube 33, which can ensure the installation reliability of the first end cover 31 and the support tube 33.

[0067] In some embodiments, an assembly port 15 is provided at one end of the filter element housing 1, and a detachable connecting end cover 2 is provided at the assembly port 15. The first filter component 3 and the second filter component 4 are both suitable for being installed into the filter element housing 1 from the assembly port 15, wherein the positioning portion 311 is formed with a guide slope 312, and the guide slope 312 is used to guide and cooperate with the filter element housing 1 when the first end cover 31 is installed.

[0068] Specifically, the filter element housing 1 is disposed at the outermost side of the filter element structure 100, and Figure 1As shown, an assembly port 15 is provided at one end of the filter element housing 1, and the assembly port 15 is open, so that the first filter component 3 and the second filter component 4 can extend into the filter element housing 1 through the open side of the assembly port 15 to be installed in the filter element housing 1, and a connecting end cover 2 is provided at the assembly port 15, and the connecting end cover 2 can be installed at the assembly port 15, and the connecting end cover 2 can press the first filter component 3 and the second filter component 4 against the inner wall of the filter element housing 1 to ensure the reliability of the installation of the first filter component 3 and the second filter component 4.

[0069] In addition, the connecting end cover 2 is configured 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, and a hand-held portion 21 is provided on the side of the connecting end cover 2 away from the filter element housing 1, and the hand-held portion 21 is configured to protrude outward, so that the user can hold the hand-held portion 21 to perform installation, disassembly, and other operations on the filter element structure 100, thereby improving convenience of use.

[0070] In actual configuration, the connection end cover 2 and the assembly opening 15 may also be welded as required to ensure the sealing reliability of the filter element housing 1 .

[0071] Furthermore, a positioning portion 311 is provided on the outer peripheral wall of the first end cover 31. When the first filter assembly 3 is installed in the filter element housing 1, the positioning portion 311 can be pressed against the inner peripheral wall of the filter element housing 1 to ensure the installation accuracy of the first end cover 31, and the positioning portion 311 is formed with a guiding bevel 312. The positioning portion 311 is formed with a guiding bevel 312. The guiding bevel 312 is used to guide and cooperate with the filter element housing 1 when the first end cover 31 is installed. The guiding bevel 312 is provided on the side of the positioning portion 311 facing the installation direction, so that the size of the positioning portion 311 protruding outward from the outer peripheral wall of the first end cover 31 gradually increases along the installation direction, that is, the protruding size of the positioning portion 311 on the side close to the installation direction is the smallest, so that it is convenient to place the first end cover 31 in the filter element housing 1, thereby improving the installation efficiency.

[0072] In some embodiments, a first reinforcing rib 314 is provided in the first end cover 31 near one end of the support tube 33 .

[0073] Specifically, 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 shown in FIG. Figure 4As shown, the first end cover 31 is provided with a first reinforcing rib 314. The first reinforcing rib 314 is arranged in the first end cover 31 and is located near one end of the support tube 33. The support tube 33 is connected to the first end cover 31. When water flows through the support tube 33, a force is generated on the support tube 33. The force can be transmitted to the connection between the first end cover 31 and the support tube 33 through the support tube 33. The first reinforcing rib 314 is provided in the first end cover 31 near one end of the support tube 33, which can improve the structural strength of the first end cover 31 near one end of the support tube 33, avoid deformation of the first end cover 31 due to force, ensure reliability in use, and extend service life.

[0074] In other embodiments, the outer peripheral wall of the support tube 33 is provided with a second reinforcing rib 331, such as Figure 5 As shown, the second reinforcing rib 331 is extended along the axial direction of the support tube 33, and the water flows along the axial direction of the support tube 33 at the support tube 33, thereby improving the axial structural strength of the support tube 33 to ensure the reliability of the support tube 33 and extend 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 spaced apart and distributed along the circumference of the first end cover 31 .

[0076] Specifically, Figure 4 As shown, a plurality of first reinforcing ribs 314 are provided, that is, the first reinforcing ribs 314 can be provided as two, three or four, etc., and the plurality of first reinforcing ribs 314 can be provided as the same or different, and the plurality of first reinforcing ribs 314 are distributed at intervals along the circumference of the first end cover 31, that is, the plurality of first reinforcing ribs 314 can respectively reinforce the structures at multiple locations on the circumference of the first end cover 31 close to one end of the support tube 33, thereby ensuring the reliability of the connection between the first end cover 31 and the support tube 33.

[0077] In addition, the force can be transmitted through multiple first reinforcing ribs 314 respectively to reduce the force acting on each first reinforcing rib 314, thereby ensuring the reliability of the first reinforcing rib 314. The spacing between two adjacent first reinforcing ribs 314 is equal, so that the force acting on each first reinforcing rib 314 is also equal, thereby avoiding deformation caused by excessive force on a single first reinforcing rib 314 and extending the 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 tube 33 .

[0079] Specifically, Figure 5As shown, a plurality of second reinforcing ribs 331 are provided, that is, the second reinforcing ribs 331 can be provided as two, three or four, etc., and the plurality of second reinforcing ribs 331 can be provided as the same or different, and the plurality of second reinforcing ribs 331 are distributed at intervals along the circumference of the support tube 33, that is, the plurality of second reinforcing ribs 331 can respectively reinforce the structures at multiple locations in the circumferential direction of the support tube 33, thereby ensuring the reliability of the support tube 33.

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

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

[0082] Specifically, Figure 4 As shown, a plurality of first reinforcing ribs 314 are provided on the inner end surface of the first end cover 31 close to the support tube 33, and the plurality of first reinforcing ribs 314 are distributed and spaced apart along the circumferential direction. In the present embodiment, the plurality of first reinforcing ribs 314 are provided differently, and some of the first reinforcing ribs 314 are only provided on the inner end surface of the first end cover 31 and are extended radially, and some of the first reinforcing ribs 314 are provided on the inner end surface of the first end cover 31 and can extend along the axial direction of the first end cover 31, that is, some of the first reinforcing ribs 314 are longer, and some of the first reinforcing ribs 314 are shorter, so that the acting force can partially act on the inner end surface of the first end cover 31 through the first reinforcing ribs 314, and can also partially be transmitted to the side wall of the first end cover 31 through the first reinforcing ribs 314 to act on the side wall of the first end cover 31, so as to disperse the acting force to weaken the effect of the acting force, extend the service life of the first end cover 31, and improve the reliability of use.

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

[0084] Specifically, the wall thickness of the support tube 33 is set to a, and satisfies: a≥1.8mm, that is, the wall thickness a of the support tube 33 can be set to 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm or 2.5mm, etc. The wall thickness a of the support tube 33 is set to satisfy: a≥1.8mm, so that the wall thickness of the support tube 33 is thicker, which can improve the structural strength of the support tube 33, ensure the reliability of the support tube 33, and extend the service life of the support tube 33.

[0085] In other embodiments, the thickness of the end portion of the first end cover 31 close to the support tube 33 is set to b, and satisfies: b≥2.5 mm.

[0086] Specifically, the thickness of the end of the first end cover 31 close to the support tube 33 is set to b, and satisfies: b≥2.5mm, that is, the thickness b of the end of the first end cover 31 close to the support tube 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 cover 31 close to the support tube 33 is connected to the support tube 33, and the force acting on the support tube 33 can be transmitted to the end of the first end cover 31 close to the support tube 33. The thickness b of the end of the first end cover 31 close to the support tube 33 is set to satisfy b≥2.5mm, which can improve the structural strength of the end of the first end cover 31 close to the support tube 33, thereby ensuring the reliability of the connection between the first end cover 31 and the support tube 33, thereby extending the service life.

[0087] In some embodiments, the first inlet 11 and the first outlet 12 are both arranged at the same end of the filter element housing 1, and the first end cover 31 is provided with an intermediate connecting port 315, wherein the first flow path 35 includes a first flow segment 351, a second flow segment 352 and a filter space 353, the first flow segment 351 is connected to the first inlet 11, the second flow segment 352 is connected to the first outlet 12, a part of the first flow segment 351 is formed between the first end cover 31 and the filter element housing 1 and the other part is formed between the support tube 33 and the filter element housing 1, the filter space 353 is formed in the support tube 33 and is provided with a first filter element 34, the second flow segment 352 is formed between the first end cover 31 and the second filter component 4, and the filter space 353 is connected to the second flow segment 352 through the intermediate connecting port 315.

[0088] Specifically, the filter element housing 1 is provided with a first inlet 11 and a first outlet 12, and a first flow path 35 passing through the first filter component 3 is formed between the first inlet 11 and the first outlet 12 to filter the water flow once through the first filter component 3, and the first inlet 11 and the first outlet 12 are both arranged at the same end of the filter element housing 1, so that the first flow path 35 is longer, thereby improving the filtering effect on the water flow.

[0089] And if Figure 2As shown, the first flow path 35 includes a first flow section 351, a second flow section 352 and a filter space 353. The first flow section 351 is connected to the filter space 353, the filter space 353 is connected to the second flow section 352, and 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 filter space 353, so as to flow to the second flow section 352 through the filter space 353, and the water flow in the second flow section 352 can flow out of the filter element housing 1 through the second outlet 14.

[0090] In addition, a portion of the first flow section 351 is formed between the first end cover 31 and the filter element housing 1 and the other portion is formed between the support tube 33 and the filter element housing 1, that is, the first end cover 31 and the filter element housing 1 are spaced apart, and the support tube 33 and the filter element housing 1 are also spaced apart, so that when water flows into the first flow section 351 through the first inlet 11, it can flow through the first end cover 31 and the support tube 33 in turn, and the filtering space 353 is formed in the support tube 33 and is provided with a first filter element 34, that is, after the water flows into the support tube 33, it can be filtered by the first filter element 34.

[0091] Furthermore, the first end cover 31 is provided with an intermediate connecting port 315, which is open toward the inside of the support tube 33, and the filter space 353 is connected with the second flow section 352 through the intermediate connecting port 315, so that the filtered water flow can flow into the second flow section 352 through the intermediate connecting port 315, and the second flow section 352 is formed between the first end cover 31 and the second filter component 4, so that the filtered water flow can flow along the outer peripheral wall of the second filter component 4 and the inner peripheral wall of the first end cover 31, so as to flow out of the filter element housing 1 through the first outlet 12, thereby ensuring flow reliability.

[0092] In some embodiments, the first inlet 11 , the first outlet 12 , the second inlet 13 and the second outlet 14 are all disposed at the same end of the filter element 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. Figure 1-Figure 2 As shown, an assembly port 15 is provided at one end of the filter element housing 1, and the first filter component 3 and the second filter component 4 can be installed in the filter element housing 1 through the assembly port 15, and the first inlet 11, the first outlet 12, the second inlet 13 and the second outlet 14 are all provided 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 provided at the same end of the filter element housing 1.

[0094] In this way, the length of the flow path of water in the filter element housing 1 can be increased, thereby improving the filtering effect of the water flow, and the first inlet 11, the first outlet 12, the second inlet 13 and the second outlet 14 are arranged at the same end of the filter element housing 1, which is convenient for connecting the filter element structure 100 with external pipelines, ensuring the neatness of the inside of the water-using equipment 1000, and the assembly port 15 can be arranged away from the first inlet 11, the first outlet 12, the second inlet 13 and the second outlet 14, so as to avoid affecting the reliability of the connection between the first inlet 11, the first outlet 12, the second inlet 13 and the second outlet 14 and the remaining pipelines during the installation of the first filter component 3 and the second filter component 4, so as to ensure the reliability of the filter element structure 100.

[0095] In some embodiments, a limiting groove 316 which is open in the axial direction is provided on the end surface of the first end cover 31 facing the supporting tube 33 , and the end of the supporting tube 33 extends into the limiting groove 316 .

[0096] Specifically, one end of the first end cover 31 is connected to the filter element housing 1, and the other end is connected to the support cylinder 33, and as shown in FIG. Figure 1 As shown, a limiting groove 316 is provided at one end of the first end cover 31 facing the support tube 33, and the limiting groove 316 is open toward the support tube 33. The end of the support tube 33 can extend into the limiting groove 316, so that the end of the support tube 33 can be plugged into the limiting groove 316 of the first end cover 31, which is convenient for the installation of the support tube 33 and the first end cover 31. After the end of the support tube 33 extends into the limiting groove 316, the first end cover 31 and the support tube 33 can be fixed by welding or the like to ensure the reliability of the connection.

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

[0098] In other embodiments, the second filter assembly 4 is provided with an inner cylinder 41, a third end cover 42, a fourth end cover 43 and a second filter element 44, one end of the inner cylinder 41 is connected to the filter element housing 1 to define an accommodating chamber, the third end cover 42 and the fourth end cover 43 are both installed in the accommodating chamber and are axially spaced apart in the accommodating chamber, the third end cover 42 is connected to the filter element housing 1, the second filter element 44 is supported and pressed between the third end cover 42 and the fourth end, the second flow path 45 includes a water inlet section and a water outlet section, the water inlet section is located between the outer circumferential wall of the second filter element 44 and the inner circumferential wall of the inner cylinder 41, and the water outlet section is located in the inner circumferential wall of the second filter element 44, so that the water flow can flow through the second filter element 44 to filter the water flow.

[0099] The outer circumferential wall of the inner cylinder 41 is provided with a plurality of support portions 411 protruding outward, and the plurality of support portions 411 are pressed against the inner circumferential wall of the first end cover 31. When the inner cylinder 41 is installed in the first end cover 31, the support portions 411 can be pressed against the inner circumferential wall of the first end cover 31 to ensure the accuracy of the installation of the inner cylinder 41, and the support portions 411 can support the inner circumferential wall of the first end cover 31 and the outer circumferential 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 element housing 1 is provided with a sealing groove 5, which is provided with three sealing grooves 5, and the three sealing grooves 5 are sleeved one by one along the radial direction, the first end cover 31 is sleeved outside the inner cylinder 41, the inner cylinder 41 is sleeved 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, and the sealing groove 5 is also provided with a sealing member 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 filtration.

[0101] Among them, the thickness of the outer wall of the sealing groove 5 for inserting the inner cylinder 41 is set to be greater than 2.5 mm, which can improve the structural strength of the sealing groove 5, prevent the seal 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 and less than or equal to 4 mm.

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

[0103] The water-using equipment 1000 according to the embodiment of the present invention is provided with any one of the filter element structures 100 described above.

[0104] Specifically, Figure 6As shown, a mounting bracket 101 is provided in the water-using equipment 1000, and the filter element structure 100 can be installed on the mounting bracket 101 to improve the installation reliability, and the filter element structure 100 is movable relative to the mounting bracket 101, so that the filter element structure 100 can be disassembled relative to the water-using equipment 1000, so that the user can replace the filter element structure 100, thereby improving the convenience of use and ensuring the filtering effect of the filter element structure 100, and the RO filter element 102 can also be installed on the mounting bracket 101, so that the distance between the filter element structure 100 and the RO filter element 102 is closer, so as to shorten the use length of the intermediate pipeline and reduce the installation cost.

[0105] In addition, the water use device 1000 is provided with a panel 103, which can be set on the front side of the water use device 1000 to display the status of the water use device 1000, etc., to improve the convenience of use, and the panel 103 is provided with a water outlet 104, which can be connected to the second outlet 14 of the filter element structure 100, so that the water filtered by the filter element structure 100 can flow directly out of the water outlet 104 for users to drink, etc., to improve the user experience.

[0106] According to the water-using equipment 1000 of the embodiment of the present invention, a filter element structure 100 is provided, and the filter element structure 100 can perform secondary filtration on the water flow by integrating the first filter component 3 and the second filter component 4 to ensure the filtering effect on the water flow and improve the health of use. The integration of the filter element structure 100 can be improved, the occupied space can be reduced, and the convenience of installation can be improved. At the same time, the first end cover 31 and the support tube 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 cover 31 and the support tube 33 are both short to ensure the structural strength of the first end cover 31 and the support tube 33, thereby ensuring the filtering efficiency and improving the reliability of use. The structure is simple, the setting cost can be reduced, the use effect is better, and the scope of application is wider.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. A filter element structure, characterized in that: include: A filter cartridge housing having a first inlet, a first outlet, a second inlet, and a second outlet; a first filter assembly, the first filter assembly being installed in the filter element housing, 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, the second filter assembly being installed in the filter element housing, and 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 includes a first end cover and a support tube, the first end cover and the support tube are distributed along the length direction of the filter element housing, and the second filter assembly is installed in the first end cover.

2. The filter element structure according to claim 1, characterized in that: The outer peripheral wall of the first end cover is provided with a positioning portion protruding outward, and the positioning portion is suitable for pressing against the inner peripheral wall of the filter element housing.

3. The filter element structure according to claim 2, characterized in that: There are at least two groups of positioning portions, and the at least two groups of positioning portions are spaced apart and distributed along the axial direction of the first end cover.

4. The filter element structure according to claim 3, characterized in that: Each group of the positioning portions is provided in plurality, and the plurality of positioning portions 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 group of the positioning parts is located at one end of the first end cover close to the support tube, and a positioning flange is formed on the outer side of the positioning part, and at least a part of the positioning flange is located on the outer side of the support tube.

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 connection end cover is provided at the assembly port, and the first filter assembly and the second filter assembly are both suitable for being installed into the filter element housing through the assembly port; Wherein, the positioning portion is formed with a guiding inclined surface, and the guiding inclined surface is used for guiding and cooperating with the filter element housing when the first end cover is installed.

7. The filter element structure according to claim 1, characterized in that: A first reinforcing rib is provided in the first end cover close to one end of the support tube; And / or, the outer peripheral wall of the support tube is provided with a second reinforcing rib.

8. The filter element structure according to claim 7, characterized in that: The first reinforcing ribs are provided in plurality, and the plurality of the first reinforcing ribs are distributed at intervals along the circumference of the first end cover; And / or, the second reinforcing rib is provided in plurality, and the plurality of the second reinforcing ribs are distributed at intervals along the circumference of the support tube; And / or, the first reinforcing rib is arranged on the inner end surface 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 tube is set to a, and satisfies: a≥1.8mm; And / or, the thickness of the end portion of the first end cover close to the support tube is set to b, and satisfies: b≥2.5 mm.

10. The filter element structure according to claim 1, characterized in that: The first inlet and the first outlet are both arranged at the same end of the filter element housing, and the first end cover is provided with an intermediate communication port; Wherein, the first flow path includes a first flow section, a second flow section and a filter space, the first flow section is connected to the first inlet, the second flow section is connected to the first outlet, a part of the first flow section is formed between the first end cover and the filter element housing and another part is formed between the support tube and the filter element housing, the filter space is formed in the support tube and is provided with a first filter element, the second flow section is formed between the first end cover and the second filter assembly, and the filter space is connected to the second flow section through the intermediate connecting port.

11. 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 arranged at the same end of the filter element housing.

12. The filter element structure according to claim 1, characterized in that: The end surface of the first end cover facing the support tube is provided with a limiting groove which is open in the axial direction, and the end of the support tube extends into the limiting groove.

13. A water-using device, characterized in that: A filter element structure according to any one of claims 1 to 12 is provided.

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