Filter element supporting seat for water purifying and drinking equipment, filter element and water purifying and drinking machine

Abstract

The utility model discloses a filter element supporting seat for purified drinking equipment, a filter element and a purified drinking machine, and belongs to the field of purified drinking equipment. A supporting seat is arranged in a filter shell of the filter element and is positioned between the end part, far away from a water opening, of a filter material body and an outer end cover of the filter shell; comprising a base body, an inner cavity is formed in the base body and can be communicated with the end, away from a water opening, of a filter material body, and a supporting part used for supporting the end of the filter material body is arranged in the inner cavity; peripheral walls are arranged at the top of the seat body, and a flow passage capable of being communicated with the inner cavity is formed between the peripheral walls, so that to-be-filtered water flow can enter the inner cavity through the flow passage and is filtered by the filter material body. The supporting seat is designed at the end part of the filter material body and supports the bottom end surface of the filter material body from the lower part, so that the filter material body is prevented from axially sinking under the action of water pressure, and the sealing stability between the filter material body and the water gap end of the filter shell is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pure drinking equipment, more particularly to a filter element support seat for pure drinking equipment, a filter element and a pure drinking machine. BACKGROUND

[0002] With the development of industrialization, people pay great attention to drinking water safety, and water purification equipment has thus entered millions of households. Since the filter element needs to be replaced regularly, when selecting water purification equipment, users not only need to consider the filtering performance of the filter element, but also need to consider the convenience, sealing performance and water leakage prevention of the filter element installation. Once the pure drinking equipment leaks, it not only affects the user experience, but also easily causes internal equipment failure.

[0003] Compared with ordinary filter elements, RO reverse osmosis membrane filter elements have stronger filtering effect and are commonly used filter element components of water purification equipment. Through user feedback in long-term practice, the applicant finds that the RO membrane filter element is prone to occasional end water leakage after being used for a long time, especially for large-flux filter elements. The greater the water flow in the filter element, the longer the filter element is used, and the stronger the water leakage is. It is difficult to identify the cause of water leakage, which causes great trouble to the applicant. SUMMARY

[0004] 1. Technical problem to be solved by the utility model

[0005] The utility model aims to solve the problem of occasional water leakage of filter elements in the prior art after long-term use. A filter element support seat for pure drinking equipment, a filter element and a pure drinking machine are provided. The support seat is configured to be installed inside the filter shell of the filter element and located between the end of the filter material body away from the water outlet and the outer end cover of the filter shell, for limiting the axial displacement of the filter material body in the filter shell.

[0006] 2. Technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the technical scheme as follows:

[0008] The utility model relates to a filter element support seat for pure drinking equipment. The support seat is configured to be installed inside the filter shell of the filter element and located between the end of the filter material body away from the water outlet and the outer end cover of the filter shell, for limiting the axial displacement of the filter material body in the filter shell.

[0009] The support seat includes a seat body, an inner cavity is formed in the seat body, the inner cavity is configured to be in communication with the end of the filter material body away from the water outlet, and a support part for supporting the end of the filter material body is arranged in the inner cavity. An outer peripheral wall is arranged at the top of the seat body, and a flow passage in communication with the inner cavity is formed between the four outer peripheral walls, so that the water to be filtered can flow into the inner cavity through the flow passage and be filtered by the filter material body.

[0010] Further, the upper part of the seat body is provided with a plurality of peripheral walls, and the gap between adjacent two peripheral walls forms a flow channel; and along the circumferential direction of the inner cavity, the total length of the plurality of flow channels is not less than the total length of the plurality of peripheral walls.

[0011] Further, the bottom wall of the inner cavity of the seat body is provided with a water flow channel communicating with the inner cavity, and the bottom wall is configured to be installed inside the outer end cover of the filter shell and has a height gap with the inner end face of the outer end cover, so that the water to be filtered can enter the inner cavity through the gap between the bottom wall and the inner end face of the outer end cover.

[0012] Further, the bottom wall of the seat body is provided with a downward protruding lower rib plate, and the bottom wall is configured to be installed inside the outer end cover of the filter shell through the lower rib plate and to support the height gap through the lower rib plate.

[0013] The utility model discloses a filter core for pure drinking equipment, and the filter core comprises a filter shell and an internal filter material body, a water inlet flow channel is formed between the filter material body and the inner wall of the filter shell, one end of the filter material body away from a water inlet is closed in the filter shell through an outer end cover, a support seat as described above is formed between the end of the filter material body and the outer end cover, the support part on the support seat is supported on the end of the filter material body, and the end of the filter material body is communicated with the inner cavity of the support seat, and the flow channel on the support seat is communicated with the water inlet flow channel.

[0014] Further, the central part of the filter material body is provided with a center tube, and a pure water flow channel is formed in the tube cavity of the center tube; the bottom part of the center tube is provided with a fixing part, the center of the bottom wall of the seat body is provided with an inner mounting cylinder matched with the fixing part, and the support part in the inner cavity of the seat body is distributed around the outer periphery of the inner mounting cylinder.

[0015] Further, the outer periphery of the inner mounting cylinder on the bottom wall of the seat body is also provided with an outer support cylinder, and the height of the outer support cylinder is lower than that of the inner mounting cylinder, and the outer support cylinder is used for supporting the bottom end of the center tube.

[0016] Further, the top part of the peripheral wall on the support seat is arranged outside the circumferential wall surface of the filter material body, and the inner side of the peripheral wall is provided with a limiting wall abutting against the circumferential wall surface of the filter material body to limit the radial displacement of the filter material body.

[0017] Further, the outer wall surface of the filter material body and the inner wall surface of the peripheral wall are separated by the limiting wall, and along the circumferential direction of the outer wall of the filter material body, the extension length of the limiting wall is less than that of the peripheral wall, and a channel for water flow is formed between the outer wall surface of the filter material body and the inner wall surface of the peripheral wall.

[0018] Further, the support part in the inner cavity of the seat body comprises a first support rib provided at the bottom end of the limiting wall and extending radially inwardly, and the first support rib is matched and supported below the end part of the filter material body.

[0019] Further, the inner cavity of the seat body is provided with an upper cover plate, the upper cover plate and the bottom wall of the inner cavity of the seat body form a containing space for placing the scale inhibitor, and the upper cover plate is provided with a flow channel communicating with the containing space, and the flow channel communicates the containing space with the overflow channel.

[0020] Further, the height of the upper cover plate is lower than the height of the supporting part in the inner cavity of the seat body, the upper cover plate is provided with a through slot for the supporting part in the inner cavity of the seat body to pass through, and the upper cover plate and the seat body are detachably installed and matched, and the seat body is provided with a limiting part for limiting the axial displacement of the upper cover plate.

[0021] Further, the seat body is provided with a buckle part, and the circumferential side wall of the upper cover plate is correspondingly provided with a hooking part matched with the buckle part, and the buckle part and the hooking part are buckled and connected by pressing the upper cover plate downward.

[0022] Further, the seat body is further provided with a third supporting rib below the upper cover plate, and the third supporting rib is supported on the bottom surface of the upper cover plate.

[0023] Further, the supporting part of the inner cavity of the seat body comprises a second supporting rib provided on the bottom wall, and the second supporting rib passes through the upper cover plate upward and is supported on the end part of the filter material body.

[0024] The utility model discloses a kind of pure drinking machine, including waterway board and the filter core as described above, and the waterway board is connected with the water port of the water port of filter core end part corresponding.

[0025] Further, the waterway board and the filter core are vertically distributed, and the filter core extends horizontally inside the pure drinking machine.

[0026] 3. Beneficial effects

[0027] Compared with the prior art, the technical scheme has the following beneficial effects:

[0028] (1) The filter core of the pure drinking equipment has a supporting seat designed on the end part of the filter material body, which supports the bottom end surface of the filter material body from below, thereby avoiding axial sinking of the filter material body and ensuring the sealing stability between the filter material body and the water port end of the filter shell. At the same time, the overflow channel formed in the side wall ensures that the supporting seat does not block the water flow path, effectively avoiding the sinking and leakage of the filter material body caused by water pressure impact, and improving the sealing performance.

[0029] (2) The filter core for the pure drinking equipment has the following advantages: along the circumferential direction of the inner cavity, the total length of the extension of the multiple groups of flow channels is not less than the total length of the extension of the multiple groups of peripheral walls, that is, the blocking interval range of the water flow is less than the interval range of the water flow circulation, thereby meeting the demand for the water flow, especially for the large-flow equipment, the filtering efficiency and the water outlet speed of the filter core are fully ensured, and the demand of the user for the large-flow and fast water use is met.

[0030] (3) The filter core for the pure drinking equipment has the following advantages: on the basis of arranging the support seat, the inner cavity space is simultaneously used as the containing space of the scale inhibitor, the filter material body is prevented from sinking and leaking water, the self-volume of the filter material body can be maximized under the same volume, and flow limitation is not caused, thereby the filtering effect of the filter core is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structure schematic view of the filter core in the embodiment;

[0032] Figure 2 It is a sectional view of the internal structure of the filter core in the embodiment;

[0033] Figure 3 It is a structure schematic view of the internal structure of the filter core in the embodiment; Figure 2

[0034] Figure 4 It is a structure schematic view of the internal filter material assembly after removing the filter shell;

[0035] Figure 5 It is a structure schematic view of the internal filter material assembly;

[0036] Figure 6 It is a sectional view of the internal filter material assembly;

[0037] Figure 7 It is a structure schematic view of the internal filter material assembly in the embodiment; Figure 6

[0038] Figure 8 It is a structure schematic view of the support seat in the embodiment;

[0039] Figure 9 It is another view structure schematic view of the support seat in the embodiment;

[0040] Figure 10 It is a front view structure schematic view of the support seat in the embodiment;

[0041] Figure 11 It is a top view structure schematic view of the support seat in the embodiment;

[0042] Figure 12 It is a structure schematic view of the support seat after removing the upper cover plate; ​​

[0043] Figure 13 Another perspective structure schematic view of the filter cartridge is shown in Fig. 3. Figure 12 Another perspective structure schematic view of the filter cartridge is shown in Fig. 3.

[0044] Figure 14 An installation state schematic view of the filter cartridge in the water purifier is shown in Fig. 4.

[0045] Explanation of the reference signs in the schematic view:

[0046] 100, filter cartridge; 101, filter shell; 102, water inlet; 103, purified water outlet; 104, waste water outlet; 105, outer end cover; 106, water inlet flow channel;

[0047] 110, filter material body; 111, inner end cover; 112, center tube; 113, fixing part; 114, purified water flow channel;

[0048] 200, support seat; 210, seat body; 211, peripheral wall; 212, peripheral rib; 213, bottom wall; 214, lower rib plate; 215, first support rib; 216, overflow passage; 217, second support rib; 218, buckle part; 219, third support rib; 220, outer support cylinder; 221, inner mounting cylinder; 222, limiting wall; 230, upper cover plate; 231, flow passage; 232, hooking part;

[0049] 300, waterway board. DETAILED DESCRIPTION

[0050] In order to further understand the content of the present application, the present application will be described in detail in conjunction with the drawings.

[0051] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0052] In addition, it should be noted that unless otherwise specifically specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements; the terms "first", "second", "third", "fourth" should be understood broadly, only for distinguishing feature names, and do not indicate a specific sequence relationship. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] The utility model will be further described below in combination with the embodiments.

[0054] Embodiment

[0055] In combination Figures 1-14 , the support seat 200 is configured to be installed inside the filter shell 101 of the filter element 100, and located between the end of the filter material body 110 away from the water port and the outer end cover 105 of the filter shell 101, for limiting the axial displacement of the filter material body 110 in the filter shell 101; specifically, the support seat 200 includes a seat body 210, an inner cavity is formed in the seat body 210, the inner cavity is configured to be able to communicate with the end of the filter material body 110 away from the water port, and a support part for supporting the end of the filter material body 110 is arranged in the inner cavity; the top of the seat body 210 is provided with a peripheral wall 211, and a flow passage 216 capable of communicating with the inner cavity is formed between the peripheral wall 211 around, so that the water to be filtered can flow into the inner cavity through the flow passage 216 and be filtered by the filter material body 110.

[0056] In practice, the filter element 100 includes a filter shell 101, and a filter material body 110 installed inside the filter shell 101, one end of the filter shell 101 is a water port end for connecting the waterway board 300, and the other end is sealed inside by the outer end cover 105 to enclose the filter material body 110 inside. The end of the filter material body 110 towards the water port end of the filter shell 101 is correspondingly provided with an inner end cover 111, and is sealed and installed with the water port end of the filter shell 101 through the inner end cover 111, taking the RO membrane filter element as an example, the water port end of the filter shell 101 includes a water inlet 102, a clean water outlet 103 and a waste water outlet 104 in sequence, the filter material body 110 is a filter membrane body, the middle part of the filter material body 110 has a center tube 112, the filter membrane is wound on the center tube 112, the inner cavity of the center tube 112 forms a clean water flow channel 114, the end of the clean water flow channel 114 corresponds to the communication with the clean water outlet 103; and a plurality of through holes for water flow are arranged on the wall of the center tube 112, the filter material body 110 forms a water inlet flow channel 106 between the inner wall of the filter shell 101 after installation, and the bottom of the filter material body 110 also has a channel gap for flow between the inner end face of the outer end cover 105, the raw water enters the inside of the filter material body 110 after flowing through the water inlet flow channel 106 from the bottom for filtration after being filtered, the filtered clean water enters the center tube 112 and is finally discharged through the clean water outlet 103, and the generated waste water is discharged through the waste water outlet 104. This is the conventional installation mode and filtration path of the membrane filter element, which will not be described in detail here. The top end, bottom end, height, up and down and other directions mentioned in the embodiment are all referred to as shown in the drawings. Figure 2 、 Figure 3 、 Figure 6 、 Figure 7In the middle position, the radial, axial and other directions are understood with reference to the cylindrical filter core position in the drawings, the axial direction refers to the overall length direction of the filter core, and the radial direction refers to the direction perpendicular to the length direction, and is not limited to only applicable to the cylindrical filter core structure.

[0057] In practice, the applicant has tracked and verified for a long time, and has made a breakthrough in the occasional water leakage problem of the membrane filter core. It is found that such occasional water leakage is more obvious in the filter core with large waterway flow. After research and analysis, the end of the filter material body 110 near the water inlet end is subjected to water pressure for a long time, that is, the end where the inner end cover 111 is located is subjected to water pressure for a long time, especially for large-diameter and large-flow equipment, the water pressure effect is more obvious, and over a long period of time, the filter material body 110 may occasionally sink under pressure, that is, the filter material body 110 sinks towards the end close to the outer end cover 105, which may cause sealing misalignment and sealing failure between the inner end cover 111 and the water inlet end of the filter shell 101, thereby causing filter core leakage and affecting the filtration flow and filtration effect of the filter material body 110.

[0058] Based on the above findings, the applicant designs a support seat 200 at the end of the filter material body 110, which directly supports the bottom end face of the filter material body 110 from below by using the support part, thereby avoiding the axial sinking of the filter material body 110 and ensuring the sealing stability between the filter material body 110 and the water inlet end of the filter shell 101. At the same time, the support seat 200 does not block the water flow path by opening the overflow channel 216 in the side wall, and the inner cavity of the seat body 210 can be in communication with the water inlet flow channel 106. The outer peripheral wall surface of the seat body 210 and the outer peripheral wall 211 still maintain a certain gap with the inner wall of the filter shell 101, and the overflow channel 216 is formed between the outer peripheral walls 211, so that the water to be filtered can still enter the filter material body 110 from the bottom end for filtration after passing through the water inlet flow channel 106, thereby meeting the normal filtration path requirements. In practice, the outer peripheral wall 211 can be an annular wall, and then a plurality of overflow channels 216 with a certain thickness are formed on the annular wall surface. The extension length of the plurality of overflow channels 216 is preferably not less than half of the overall length of the annular wall, so as to ensure the water inlet flow. The outer peripheral wall 211 can also adopt other structural forms.

[0059] To effectively ensure the required flow rate and volume of water, in some embodiments, the upper part of the base body 210 is provided with multiple sets of peripheral walls 211. The gap between adjacent sets of peripheral walls 211 forms a flow channel 216, and the total extension length of the multiple sets of flow channels 216 along the circumferential direction of the inner cavity is not less than the total extension length of the multiple sets of peripheral walls 211. In this case, the flow channel 216 has a top-opening structure, which facilitates water flow. Preferably, the effective water passage length of each set of flow channels 216 is greater than the extension length of the peripheral walls 211, meaning the obstruction range of water flow is smaller than the water flow range, thereby meeting the water flow requirements. Especially for high-flow-rate equipment, this fully ensures the filtration efficiency and water output speed of the filter element 100, meeting the user's demand for high-flow-rate, rapid water use. It should be noted that the support base 200 in this embodiment can be applied not only to membrane filter structures but also to other types of filter structures.

[0060] To further ensure water flow, in some embodiments, a water flow channel is provided on the bottom wall 213 of the inner cavity of the seat body 210, connecting the inner cavity. For example, multiple sets of through holes are provided as water flow channels. The bottom wall 213 is configured to be installed inside the outer end cover 105 of the filter housing 101, with a height gap between it and the inner end face of the outer end cover 105, allowing the water to be filtered to enter the inner cavity through the gap between the bottom wall 213 and the inner end face of the outer end cover 105. This ensures that the water to be filtered in the inlet channel 106 can not only pass through the flow channel 216 and enter the filter material body 110, but also enter the inner cavity of the seat body 210 through the water flow channel of the bottom wall 213, and then enter the filter material body 110. Water flow is achieved in both the upper and lower parts of the seat body 210. More specifically, as combined with... Figure 4 and Figure 9 As shown, in some embodiments, the bottom wall 213 of the base body 210 is provided with a downwardly protruding lower stiffener 214. The bottom wall 213 is configured to be installed inside the outer end cover 105 of the filter housing 101 by the lower stiffener 214, and a height gap is formed by the lower stiffener 214. The lower stiffener 214 also helps to improve the structural strength of the base body 210 and ensures stable support. Specifically, the lower stiffener 214 can be arranged in a cross shape on the bottom surface of the bottom wall 213. The height of the lower stiffener 214 is the gap height, and it evenly divides the area below the bottom wall 213. The edges are unobstructed and directly connect to the water inlet channel 106 to ensure rapid water flow.

[0061] This embodiment also provides a filter element 100 using the above-mentioned support base 200. As analyzed above, the filter element 100 includes a filter shell 101 and an internal filter media body 110. There is a water inlet channel 106 between the filter media body 110 and the inner wall of the filter shell 101. The end of the filter media body 110 away from the water inlet is sealed in the filter shell 101 by an outer end cap 105. There is a support base 200 as described above between the end of the filter media body 110 and the outer end cap 105. The support portion on the support base 200 supports the end of the filter media body 110, and the end of the filter media body 110 communicates with the inner cavity of the support base 200. The flow passage 216 on the support base 200 is connected to the water inlet channel 106.

[0062] Furthermore, the filter media body 110 has a central tube 112 in its middle section, and a clean water flow channel 114 is formed inside the cavity of the central tube 112. The bottom of the central tube 112 has a fixing part 113, and the bottom wall 213 of the seat body 210 has an inner mounting cylinder 221 that cooperates with the fixing part 113. Inserting the fixing part 113 into the inner mounting cylinder 221 achieves positioning and installation of the filter media body 110 and the seat body 210. Supporting parts within the cavity of the seat body 210 are distributed around the outer periphery of the inner mounting cylinder 221, achieving a central fixation and peripheral support, resulting in good stability. In some embodiments, preferably, an outer support cylinder 220 is also provided around the outer periphery of the inner mounting cylinder 221 on the bottom wall 213 of the seat body 210. The height of the outer support cylinder 220 is lower than the height of the inner mounting cylinder 221. Figure 3 As shown, the outer support cylinder 220 is used to support the bottom end of the central tube 112. Multiple sets of connecting ribs can be arranged circumferentially between the outer support cylinder 220 and the inner mounting cylinder 221. The height of the connecting ribs is preferably flush with the top surface of the outer support cylinder 220, so that the connecting ribs and the outer support cylinder 220 can jointly support the central tube 112, thereby enhancing the structural strength and support strength.

[0063] In some embodiments, to further ensure the sealing between the filter media body 110 and the inlet end of the filter housing 101, the top of the outer wall 211 on the support base 200 surrounds the outer side of the circumferential wall of the filter media body 110, and the inner side of the outer wall 211 has a limiting wall 222 that abuts against the circumferential wall of the filter media body 110 to limit the radial displacement of the filter media body 110. In this embodiment, radial refers to the direction extending from the outer wall of the filter media body 110 towards the center; taking the filter media body 110 as a cylindrical shape as an example, it is the radial direction of the circle. By setting the outer wall 211 to surround the outer side of the filter media body 110, the filter media body 110 can be effectively positioned. During installation, the filter media body 110 can be directly inserted into the inner area enclosed by the outer wall 211. The limiting wall 222 can prevent the filter media body 110 from swaying radially, thereby effectively fixing the vertical height and horizontal radial position of the filter media body 110 after installation, preventing sinking, swaying, etc., and ensuring the sealing stability of the inlet end. The inner wall surface of the outer perimeter wall 211 can be directly used as the limiting wall 222, or a separate structure can be provided as the limiting wall 222.

[0064] As in some embodiments, such as Figure 13 As shown, the outer wall surface of the filter media body 110 and the inner wall surface of the outer perimeter wall 211 are separated by a limiting wall 222. Along the circumferential direction of the outer wall of the filter media body 110, the extension length of the limiting wall 222 is less than the extension length of the outer perimeter wall 211, forming a water flow channel between the outer wall surface of the filter media body 110 and the inner wall surface of the outer perimeter wall 211. This design creates a gap between the outer wall surface of the filter media body 110 and the inner wall surface of the outer perimeter wall 211, allowing water to enter this gap area and further into the interior of the filter media body 110. This compensates for the obstruction of water flow by the outer perimeter wall 211 itself, ensuring the high water flow requirements of filtration.

[0065] Based on this, in some embodiments, the supporting portion of the inner cavity of the seat body 210 may further include a first supporting rib 215 disposed at the bottom end of the limiting wall 222 and extending radially inward. The first supporting rib 215 is supported below the end of the filter material body 110, and the first supporting rib 215 may be connected downward to the bottom wall 213. Figure 12 , Figure 13As shown, in practice, the limiting wall 222 and the first supporting rib 215 can be integrally formed as a whole structure, forming an L-shaped structure. Depending on the required support strength, a portion of the first supporting rib 215 can extend a longer length towards the inner mounting cylinder 221, increasing the support length area for the filter media body 110 and improving stability. Alternatively, in some embodiments, the center of the outer wall 211 is further provided with a triangular outer rib 212 extending upwards. The limiting wall 222 is located at the center of the inner wall of the outer rib 212. While minimizing the obstruction to water flow, the outer rib 212 can increase the overall extension and limiting height of the outer wall 211, as well as the extension height and strength of the limiting wall 222.

[0066] It should also be noted that by setting the support base 200, not only can the filter media body 110 be prevented from sinking under pressure, but it can also be used to place the scale inhibitor. Specifically, in some embodiments, the inner cavity of the base body 210 is provided with an upper cover plate 230. The upper cover plate 230 and the bottom wall 213 of the inner cavity of the base body 210 form a receiving space for placing the scale inhibitor. The upper cover plate 230 is provided with a flow channel 231 that connects to the receiving space. Specifically, multiple sets of through holes can be used. The flow channel 231 connects the receiving space with the flow channel 216. Correspondingly, the upper cover plate 230 has a through hole in the middle so that the fixing part 113 at the bottom of the central tube 112 can pass downward. Placing a scale inhibitor allows the raw water to pass through the scale inhibitor before entering the filter media body 110. The scale inhibitor soaks and filters the raw water, changing its hardness, before it enters the filter media body 110, which helps to extend the service life of the filter media body 110. Furthermore, combining the scale inhibitor with the filter media body 110 to form an integral filter element 100 also helps to reduce the waste of the scale inhibitor and lower the replacement cost of the filter element 100.

[0067] In conventional technologies, scale inhibitors are often arranged circumferentially around the filter media body 110. This not only restricts water flow but also increases the volume of the filter housing 101, leading to an overall increase in the volume of the filter element 100. Alternatively, the volume of the filter media body 110 can be reduced, affecting the filtration effect. This embodiment, based on the support base 200, utilizes its internal space as a container for the scale inhibitor. This prevents sinking and leakage while maximizing the volume of the filter media body 110 within the same volume, without restricting flow. This helps improve the filtration effect of the filter element 100, better meeting the user's need for rapid, high-flow-rate water use.

[0068] Specifically, in some embodiments, the height of the upper cover plate 230 is lower than the height of the support part in the inner cavity of the seat body 210. At this time, the upper cover plate 230 is provided with a through groove for the support part in the inner cavity of the seat body 210 to pass through. At this time, there is still a height gap between the upper cover plate 230 and the filter media body 110. Preferably, the top surface of the upper cover plate 230 is flush with the bottom surface of the outer wall 211. That is, the bottom wall 213 of the seat body 210, the surrounding side walls, and the upper cover plate 230 form an accommodating space to prevent the scale inhibitor from diffusing outward from the larger flow channel 216. The hollow design of multiple through holes on the upper cover plate 230 and the bottom wall 213 prevents the scale inhibitor from diffusing outward while ensuring that the water flow can enter quickly from the top and bottom directions.

[0069] To facilitate the replenishment and replacement of the scale inhibitor, in some embodiments, the upper cover plate 230 and the seat body 210 are detachably installed, and the seat body 210 has a limiting part to restrict the axial displacement of the upper cover plate 230, ensuring the stability of the upper cover plate 230's position. Specifically, in some embodiments, the seat body 210 is provided with a snap-fit ​​part 218, and the circumferential sidewall of the upper cover plate 230 is provided with a corresponding hook part 232 that cooperates with the snap-fit ​​part 218. By pressing the upper cover plate 230 downward, the snap-fit ​​part 218 and the hook part 232 are snapped together, and the snap-fit ​​part 218 is pressed against the hook part 232 to prevent upward movement. Preferably, the snap-fit ​​part 218 is located in the area between two adjacent sets of outer peripheral walls 211 and extends inward from the edge of the seat body 210, which makes the spatial distribution more convenient for disassembly and assembly. In practice, various other snap-fit ​​or other installation methods can also be used, which will not be described in detail. Furthermore, in some embodiments, a third support rib 219 is provided inside the seat body 210 below the upper cover plate 230, and the third support rib 219 is supported on the bottom surface of the upper cover plate 230. Multiple sets of the third support rib 219 can be arranged at intervals along the circumference of the upper cover plate 230 to provide limiting support from below, ensuring positional stability and support strength for the upper cover plate 230.

[0070] In some embodiments, the support portion of the inner cavity of the seat body 210 further includes a second support rib 217 disposed on the bottom wall 213. The second support rib 217 passes upward through the upper cover plate 230 and is supported at the end of the filter material body 110. In practice, the lower part of the second support rib 217 can extend inward to connect with the outer wall of the outer support cylinder 220, resulting in higher structural stability. The second support rib 217 and the aforementioned first support rib 215 are preferably designed simultaneously for higher support strength. In practice, the first support rib 215, the second support rib 217, and the third support rib 219 are preferably in the form of thin plates to reduce the volume occupied in the inner cavity of the seat body 210 and ensure smooth water flow.

[0071] This embodiment also provides a water purifier, including a water circuit board 300 and a filter element 100 as described above, with the water inlet at the end of the filter element 100 correspondingly connected to the water inlet on the water circuit board 300. By optimizing the internal structure of the filter element 100, the sealing stability of the water inlet end of the filter element 100 is effectively ensured, preventing leakage. Furthermore, in practice, it is preferred, but not limited to, applying the above design to a horizontally positioned filter element 100 structure, i.e., the water circuit board 300 and the filter element 100 are vertically distributed, and the filter element 100 extends horizontally inside the water purifier. This horizontal extension is not limited to the horizontal direction of the filter element 100; it can also have a certain angle with the horizontal direction, as long as the overall structure is horizontal. Compared to the traditional method where the filter element 100 is vertically installed inside the machine body with the water inlet end facing downwards and connected to the water circuit board 300, the horizontally positioned filter element 100 is more susceptible to outward movement due to water pressure impact. Naturally, the above-mentioned filter element 100 structure can also be used in other installations, which is especially beneficial for reducing volume occupation and ensuring filtration performance by adding scale inhibitor.

[0072] The scope of protection of this utility model is defined only by the claims. Thanks to the teachings of this utility model, those skilled in the art will readily recognize that alternative structures to the disclosed structure can be used as feasible alternative implementations, and that the disclosed implementations can be combined to produce new implementations, which also fall within the scope of the appended claims.

Claims

1. A filter cartridge support base for a water purifier, characterized in that: The support (200) is configured to be installed inside the filter housing (101) of the filter element (100) and located between the end of the filter media body (110) away from the water inlet and the outer end cap (105) of the filter housing (101) to limit the axial displacement of the filter media body (110) within the filter housing (101); The support base (200) includes a base body (210), an inner cavity is formed inside the base body (210), the inner cavity is configured to communicate with the end of the filter media body (110) away from the water outlet, and a support portion for supporting the end of the filter media body (110) is provided in the inner cavity; the upper part of the base body (210) is provided with an outer wall (211), and a flow channel (216) is formed between the outer walls (211) to communicate with the inner cavity, so that the water to be filtered can enter the inner cavity through the flow channel (216) and be filtered by the filter media body (110).

2. The filter element support base for a water purifier according to claim 1, characterized in that: The upper part of the seat body (210) is provided with multiple sets of peripheral walls (211), and the gap between two adjacent sets of peripheral walls (211) forms a flow channel (216); and along the circumferential direction of the inner cavity, the total extension length of the multiple sets of flow channels (216) is not less than the total extension length of the multiple sets of peripheral walls (211).

3. The filter element support base for a water purifier according to claim 1, characterized in that: A water flow channel is provided on the bottom wall (213) of the inner cavity of the seat body (210). The bottom wall (213) is configured to be installed inside the outer end cover (105) of the filter shell (101) and has a height gap with the inner end face of the outer end cover (105), so that the water to be filtered can enter the inner cavity through the gap between the bottom wall (213) and the inner end face of the outer end cover (105).

4. A filter element support base for a water purifier according to claim 3, characterized in that: The bottom wall (213) of the seat body (210) is provided with a downwardly protruding lower rib plate (214). The bottom wall (213) is configured to be installed inside the outer end cover (105) of the filter shell (101) by the lower rib plate (214) and to form a height gap by the lower rib plate (214).

5. A filter element for a water purification device, the filter element (100) comprising a filter housing (101) and an internal filter media body (110), wherein a water inlet channel (106) is provided between the filter media body (110) and the inner wall of the filter housing (101), and one end of the filter media body (110) away from the water inlet is sealed inside the filter housing (101) by an outer end cap (105), characterized in that: The filter media body (110) has a support seat (200) as described in any one of claims 1-4 between its end and the outer end cap (105). The support portion on the support seat (200) is supported on the end of the filter media body (110), and the end of the filter media body (110) is connected to the inner cavity of the support seat (200). The flow passage (216) on the support seat (200) is connected to the water inlet channel (106).

6. A filter element for a water purifier according to claim 5, characterized in that: The filter media body (110) has a central tube (112) in the middle, and a clean water flow channel (114) is formed in the cavity of the central tube (112); the bottom of the central tube (112) has a fixing part (113), and the bottom wall (213) of the seat body (210) is provided with an inner mounting cylinder (221) that cooperates with the fixing part (113). The support part in the inner cavity of the seat body (210) is distributed around the outer periphery of the inner mounting cylinder (221).

7. A filter element for a water purifier according to claim 6, characterized in that: An outer support cylinder (220) is also provided around the outer periphery of the inner mounting cylinder (221) on the bottom wall (213) of the seat body (210). The height of the outer support cylinder (220) is lower than that of the inner mounting cylinder (221), and the outer support cylinder (220) is used to support the bottom end of the central tube (112).

8. A filter element for a water purification device according to claim 5, characterized in that: The top of the outer wall (211) on the support (200) surrounds the outer side of the circumferential wall of the filter material body (110), and the inner side of the outer wall (211) has a limiting wall (222) abutting against the circumferential wall of the filter material body (110) to limit the radial displacement of the filter material body (110).

9. A filter element for a water purification device according to claim 8, characterized in that: The outer wall of the filter media body (110) and the inner wall of the outer perimeter wall (211) are separated by a limiting wall (222). Along the circumferential direction of the outer wall of the filter media body (110), the extension length of the limiting wall (222) is less than the extension length of the outer perimeter wall (211), forming a water supply channel between the outer wall of the filter media body (110) and the inner wall of the outer perimeter wall (211).

10. A filter element for a water purification device according to claim 9, characterized in that: The support portion of the inner cavity of the seat body (210) includes a first support rib (215) located at the bottom end of the limiting wall (222) and extending radially inward. The first support rib (215) is supported below the end of the filter material body (110).

11. A filter element for a water purification device according to claim 5, characterized in that: The inner cavity of the seat body (210) is provided with an upper cover plate (230). The upper cover plate (230) and the bottom wall (213) of the inner cavity of the seat body (210) form a accommodating space for placing scale inhibitor. The upper cover plate (230) is provided with a flow channel (231) that connects to the accommodating space. The flow channel (231) connects the accommodating space with the flow channel (216).

12. A filter element for a water purification device according to claim 11, characterized in that: The height of the upper cover plate (230) is lower than the height of the support part in the inner cavity of the seat body (210). The upper cover plate (230) is provided with a through groove for the support part in the inner cavity of the seat body (210) to pass through. The upper cover plate (230) and the seat body (210) are detachably installed and fitted. The seat body (210) has a limiting part for limiting the axial displacement of the upper cover plate (230).

13. A filter element for a water purification device according to claim 12, characterized in that: The seat body (210) is provided with a buckle part (218), and the circumferential side wall of the upper cover plate (230) is provided with a hook part (232) that cooperates with the buckle part (218). By pressing the upper cover plate (230) downward, the buckle part (218) and the hook part (232) are snapped together.

14. A filter element for a water purification device according to claim 11, characterized in that: The seat body (210) is provided with a third support rib (219) below the upper cover plate (230), and the third support rib (219) is supported on the bottom surface of the upper cover plate (230).

15. A filter element for a water purification device according to claim 11, characterized in that: The support portion of the inner cavity of the seat body (210) includes a second support rib (217) provided on the bottom wall (213). The second support rib (217) passes upward through the upper cover plate (230) and is supported at the end of the filter material body (110).

16. A water purifier, characterized in that: It includes a water channel plate (300) and a filter element (100) as described in any one of claims 5-15, wherein the water outlet at the end of the filter element (100) is connected to the water outlet on the water channel plate (300).

17. A water purifier according to claim 16, characterized in that: The water circuit board (300) and the filter element (100) are vertically distributed, and the filter element (100) extends horizontally inside the water purifier.

Images