Filter structure of a water purifier

CN224911000UActive Publication Date: 2026-10-30CHENGDU FUTURE WEISDOM TECH CO LTD
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Patent Information

Application Number
CN202522581287.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-04
Publication Date
2026-10-30
Estimated Expiration
2035-12-04

AI Technical Summary

Technical Problem

[0003]随着人们生活品质的提升,对饮用水质量的要求也日益严格,净饮机作为保障日常用水安全与健康的关键设备,而过滤结构作为净饮机的核心部件,其性能直接决定了净饮机的过滤效果和水质,然而,现有的过滤结构设计较为简单,仅采用单一过滤层,难以有效去除水中的多种杂质、颗粒以及有害物质,从而导致过滤后的水质无法达到理想标准,无法充分保障饮用者的健康,同时,安装和更换过滤组件的操作也较为复杂,不仅增加了用户的使用难度,而且在更换过程中会因操作不当而损坏过滤结构的其他部件,影响净饮机的正常使用,同时也提高了维护成本

Benefits of technology

通过安装板提供稳定支撑与固定,便于整体安装,顶壳与套筒形成封闭过滤空间,保障过滤组件稳定运行,输水管与导水管配合,可引导水流进入过滤组件,安装框与底盘插接,方便更换过滤组件,通过滤筒可保护折叠滤芯,盖板引导水流并封闭,安装筒稳定折叠滤芯,折叠滤芯增大过滤面积可高效过滤杂质,且水流经两次过滤,先经一处过滤组件初次过滤,再经另一处二次过滤,最后排出,能有效提升水质,为用户提供更健康、纯净的饮用水。

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Abstract

The utility model discloses a filter structure of pure drinking machine relates to pure drinking machine technical field, including mounting panel, the bottom of mounting panel is installed with two groups top shell, the bottom of top shell is provided with sleeve, the utility model has the beneficial effect that: through mounting panel provides stable support and fixed, and the whole installation is convenient, and top shell and sleeve form closed filter space, guarantee filter assembly stable operation, and water pipe and water guide pipe cooperate, can guide water flow to enter filter assembly, and mounting frame is inserted with bottom disc, and the filter assembly is convenient to replace, and through filter drum can protect folding filter core, and the cover plate guides water flow and closes, and the mounting cylinder stabilizes folding filter core, and folding filter core increases the filter area and can efficiently filter impurity, and water flow is filtered twice, and first primary filtration through one filter assembly, and then secondary filtration through another place, and finally discharge, can effectively improve water quality, provide more healthy, pure drinking water for the user.
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Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a filtration structure for a water purifier. Background Technology

[0002] A water purifier is a household appliance that integrates water purification and drinking functions. It has a built-in high-efficiency filtration structure that can deeply purify tap water, effectively removing impurities, bacteria, heavy metals and harmful substances from the water, improving water safety and taste. Water purifiers usually have multiple temperature control functions to meet the water temperature requirements for making tea, coffee and formula, achieving instant hot water without waiting. They are compact in size, do not take up too much space, and are easy to operate, providing families with a convenient, healthy and safe drinking water solution.

[0003] As people's living standards improve, their requirements for drinking water quality are becoming increasingly stringent. Water purifiers are crucial for ensuring the safety and health of daily drinking water. The filtration structure, as the core component of a water purifier, directly determines the filtration effect and water quality. However, existing filtration structures are relatively simple, using only a single filtration layer, making it difficult to effectively remove various impurities, particles, and harmful substances from the water. This results in filtered water quality failing to meet ideal standards and failing to fully protect the health of drinkers. Furthermore, installing and replacing filter components is complex, increasing the difficulty for users and potentially damaging other parts of the filtration structure due to improper operation during replacement, affecting the normal use of the water purifier and increasing maintenance costs. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A filtration structure for a water purifier includes an installation plate. Two sets of top shells are installed at the bottom of the installation plate. A sleeve is provided at the bottom of the top shell. A horizontally arranged water supply pipe is connected to the top of the top shell. Two sets of water guide pipes are connected to the inner wall of the water supply pipe, and the bottom ends of the two sets of water guide pipes pass through the inner walls of the two sets of top shells respectively. The sleeve has an internal mounting frame, the bottom of which is connected to a base plate. The mounting frame has an internal filter assembly. The inner wall of the water supply pipe has an outlet hole, and the inner wall of the water supply pipe is fixed with a partition plate to separate the outlet hole from the water guide pipe. The filter assembly includes a filter cartridge installed inside the mounting frame. Both the upper and lower ends of the filter cartridge are provided with cover plates, and the inner walls of the cover plates are provided with multiple sets of through holes. An mounting cylinder is provided inside the filter cartridge, and multiple sets of folded filter elements are inserted into the inner wall of the mounting cylinder.

[0006] As a preferred embodiment of the filtration structure of the water purifier described in this utility model, the inner wall of the filter cartridge is fixed with positioning rings for positioning the folded filter element, and the number of positioning rings is five sets.

[0007] As a preferred embodiment of the filtration structure of the water purifier of this utility model, a threaded joint is fixed to the top of the mounting frame, and the outer side of the threaded joint is threadedly connected to the inner wall of the top shell, and a positioning piece is fixed to the outer side of the threaded joint.

[0008] As a preferred embodiment of the filtration structure of the water purifier of this utility model, the outer side of the top shell is provided with a first threaded groove, the inner wall of the sleeve is provided with a second threaded groove, and the outer side of the first threaded groove is threadedly connected to the inner wall of the second threaded groove.

[0009] As a preferred embodiment of the filtration structure of the water purifier of this utility model, a U-shaped block for installing a water pipe is fixed on the top of the top shell, four sets of mounting blocks are fixed on the top of the top shell, and mounting bolts for installing the top shell are threadedly connected to the inner wall of the mounting blocks.

[0010] As a preferred embodiment of the filtration structure of the water purifier of this utility model, the mounting plate is designed in an L shape, the inner wall of the mounting plate is provided with a reserved groove for providing installation space for the mounting bolts, and the inner wall of the mounting plate is provided with mounting holes.

[0011] As a preferred embodiment of the filtration structure of the water purifier described in this utility model, the two ends of the water supply pipe are respectively connected to an inlet pipe and an outlet pipe, and a flange is fixed at one end of both the inlet pipe and the outlet pipe.

[0012] As a preferred embodiment of the filtration structure of the water purifier described in this utility model, the bottom of the sleeve is connected to a drain pipe, and a flange is fixed to the bottom end of the drain pipe, and a control valve is provided on the outside of the drain pipe.

[0013] In summary, this utility model has the following beneficial effects: The mounting plate provides stable support and fixation, facilitating overall installation. The top shell and sleeve form a closed filtration space, ensuring stable operation of the filter assembly. The water supply pipe and guide pipe work together to guide water flow into the filter assembly. The mounting frame and chassis are interlocked for easy replacement of the filter assembly. The filter cartridge protects the pleated filter element, and the cover guides and seals the water flow. The mounting cylinder stabilizes the pleated filter element, which increases the filtration area for efficient impurity filtration. The water undergoes two filtration processes: first primary filtration through one filter assembly, then secondary filtration through another, before being discharged. This effectively improves water quality, providing users with healthier and purer drinking water. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a structural diagram of the filter structure of the water purifier.

[0015] Figure 2 This is a diagram of the sleeve structure of the filter in a water purifier.

[0016] Figure 3 This is a diagram of the top shell structure of the filter structure of a water purifier.

[0017] Figure 4 This is a structural diagram of the installation frame of the filter structure in a water purifier.

[0018] Figure 5 This is a structural diagram of the filter components in a water purifier.

[0019] The following are the labeling elements in the diagram: 1. Mounting plate; 2. Top shell; 3. Sleeve; 4. Water supply pipe; 5. Water guide pipe; 6. Mounting frame; 7. Chassis; 8. Filter assembly; 81. Filter cartridge; 82. Cover plate; 83. Mounting cylinder; 84. Folded filter element; 9. Water outlet; 10. Positioning ring; 11. Threaded joint; 12. Positioning plate; 13. First threaded groove; 14. Second threaded groove; 15. U-shaped block; 16. Mounting block; 17. Mounting bolt; 18. Reserved groove; 19. Mounting hole; 20. Water inlet pipe; 21. Water outlet pipe; 22. Drain pipe; 23. Control valve. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Example 1: Reference Figures 1-5 This is the first embodiment of the present utility model. This embodiment provides a filtration structure for a water purifier, including a mounting plate 1. Two sets of top shells 2 are installed at the bottom of the mounting plate 1. A sleeve 3 is provided at the bottom of the top shell 2. A horizontally arranged water supply pipe 4 is connected to the top of the top shell 2. Two sets of water guide pipes 5 are connected to the inner wall of the water supply pipe 4, and the bottom ends of the two sets of water guide pipes 5 respectively penetrate the inner wall of the two sets of top shells 2.

[0024] Mounting plate 1 serves as the mounting base for the entire filter structure, providing stable support and a fixed position. Simultaneously, the entire filter device can be installed in the corresponding position of the water purifier through bolts and mounting holes 19. The top shell 2 and sleeve 3 cooperate to form a closed filtration space, providing installation space for the internal filter assembly 8. Water pipe 4 serves as a water delivery channel, horizontally positioned at the top of the top shell 2, guiding water flow into water guide pipe 5. The water guide pipe 5 is designed to guide the water flow in water pipe 4 into the interior of the top shell 2, allowing the water to enter the filter assembly 8 for filtration.

[0025] The sleeve 3 has an internal mounting frame 6, and a base plate 7 is inserted into the bottom of the mounting frame 6. The mounting frame 6 has an internal filter assembly 8. The inner wall of the water supply pipe 4 has an outlet hole 9, and the inner wall of the water supply pipe 4 is fixed with a partition plate for separating the outlet hole 9 from the water guide pipe 5.

[0026] The mounting frame 6 is designed to install and secure the filter assembly 8, providing a stable installation position for the filter assembly 8. The base 7 serves to enclose the bottom of the mounting frame 6 and support the bottom of the filter assembly 8, ensuring that the filter assembly 8 is stably installed within the mounting frame 6 without affecting the normal flow of water and filtration. The design of the mounting frame 6 and the base 7 allows for easy replacement of the filter assembly 8 inside the mounting frame 6.

[0027] When filtering water resources, firstly, two sets of filter components 8 are installed sequentially in two sets of mounting frames 6, and the bottom of the mounting frames 6 is sealed with a base plate 7. Then, the mounting frames 6, together with the filter components 8, are installed inside the two sets of top shells 2 and sleeves 3. Then, an external water supply device is connected through the flange at one end of the inlet pipe 20. The water to be filtered enters the water supply pipe 4 through the inlet pipe 20. When the water to be filtered flows to the position of the guide pipe 5, it enters the sleeve 3 through the guide pipe 5 and undergoes initial filtration by the filter components 8. As the water flow continues, the initial filtration is completed. Water will re-enter the water supply pipe 4 through the outlet hole 9 on the inner wall of the water supply pipe 4. Since the inner wall of the water supply pipe 4 is fixed with a baffle that separates the outlet hole 9 from the guide pipe 5, the water will not flow directly out of the water supply pipe 4. When the water that has been filtered for the first time flows to the second guide pipe 5, it will flow into the second set of sleeves 3 through the guide pipe 5 and undergo secondary filtration through the second set of filter components 8. As the water flow continues to be injected, the filtered water will flow back into the water supply pipe 4 through the second outlet hole 9 and be discharged through the outlet pipe 21, thus completing the water filtration work.

[0028] The filter assembly 8 includes a filter cartridge 81 installed inside the mounting frame 6. Both the upper and lower ends of the filter cartridge 81 are provided with cover plates 82, and the inner wall of the cover plates 82 is provided with multiple sets of through holes. The filter cartridge 81 is provided with a mounting cylinder 83, and multiple sets of pleated filter elements 84 are inserted into the inner wall of the mounting cylinder 83.

[0029] The filter cartridge 81, as the main structure of the filter assembly 8, provides the main space for the filtration process and protects the internal pleated filter element 84. The cover plate 82 guides the water flow into the filter cartridge 81 and provides a certain degree of protection and sealing for the internal structure of the filter cartridge 81. The mounting cylinder 83 is used to insert multiple sets of pleated filter elements 84, providing installation positions for the pleated filter elements 84 and ensuring that the pleated filter elements 84 are stably installed in the filter cartridge 81 to guarantee the filtration effect. The pleated filter element 84 is the core component for the actual filtration operation. Through its special pleated structure, it increases the filtration area and can effectively filter impurities, particles, and harmful substances in the water, thereby improving water quality.

[0030] Example 2: This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] Specifically, the inner wall of the filter cartridge 81 is fixed with positioning rings 10 for positioning the pleated filter element 84, and the number of positioning rings 10 is five.

[0032] The positioning ring 10 is used to position the pleated filter element 84, ensuring that the pleated filter element 84 is stably installed in the filter cartridge 81, preventing the pleated filter element 84 from moving or shifting during the filtration process, and ensuring the stability and reliability of the filtration effect.

[0033] Specifically, a threaded connector 11 is fixed to the top of the mounting frame 6, and the outer side of the threaded connector 11 is threadedly connected to the inner wall of the top shell 2. A positioning piece 12 is fixed to the outer side of the threaded connector 11.

[0034] The threaded connector 11 enables the detachable connection between the mounting frame 6 and the top shell 2, facilitating the removal or installation of the mounting frame 6 and the internal filter assembly 8 from the top shell 2, and making it easier to maintain and replace the filter assembly 8. The positioning piece 12 can assist in positioning during installation, while also increasing the stability and firmness of the connection between the threaded connector 11 and the top shell 2.

[0035] Specifically, the outer side of the top shell 2 is provided with a first threaded groove 13, and the inner wall of the sleeve 3 is provided with a second threaded groove 14, and the outer side of the first threaded groove 13 is threadedly connected to the inner wall of the second threaded groove 14.

[0036] The first threaded groove 13 and the second threaded groove 14 cooperate with each other to realize the threaded connection between the top shell 2 and the sleeve 3. This detachable connection method facilitates the assembly and disassembly of the top shell 2 and the sleeve 3, and makes it convenient to inspect and replace the internal filter assembly 8.

[0037] Example 3: This is the third embodiment of the present invention, which is based on the first two embodiments.

[0038] Specifically, a U-shaped block 15 for installing the water pipe 4 is fixed on the top of the top shell 2, and four sets of mounting blocks 16 are fixed on the top of the top shell 2. The inner wall of the mounting blocks 16 is threaded with mounting bolts 17 for installing the top shell 2.

[0039] The U-shaped block 15 is used to install the water supply pipe 4, providing a stable installation position for the water supply pipe 4, ensuring that the water supply pipe 4 is firmly installed on the top of the top shell 2, preventing the water supply pipe 4 from shaking or shifting during use, and ensuring normal water delivery. The top shell 2 can be fixed to the mounting plate 1 by the mounting bolts 17, realizing a stable connection between the top shell 2 and the mounting plate 1, and ensuring that the entire filter structure is firmly installed in the water purifier.

[0040] Specifically, the mounting plate 1 is designed in an L shape, and the inner wall of the mounting plate 1 has a reserved groove 18 for providing installation space for the mounting bolts 17, and the inner wall of the mounting plate 1 has a mounting hole 19.

[0041] The reserved slot 18 is designed to provide installation space for the mounting bolt 17, so that the mounting bolt 17 can be installed smoothly and the top shell 2 can be fixed. The mounting hole 19 is designed to fix the mounting plate 1 in a specific position of the water purifier with bolts.

[0042] Specifically, the two ends of the water supply pipe 4 are respectively connected to the inlet pipe 20 and the outlet pipe 21, and a flange is fixed at one end of both the inlet pipe 20 and the outlet pipe 21.

[0043] The inlet pipe 20 is used to introduce the water to be filtered into the water supply pipe 4. One end of the outlet pipe 21 can be connected to the subsequent water equipment or water storage device of the water purifier to output the clean water filtered by the filter component 8 to meet the water needs of the water purifier. The two sets of flanges can facilitate the connection of the inlet pipe 20 and the outlet pipe 21 with other pipes or equipment.

[0044] Specifically, the bottom of the sleeve 3 is connected to a drain pipe 22, and a flange is fixed at the bottom end of the drain pipe 22. A control valve 23 is provided on the outside of the drain pipe 22.

[0045] The drain pipe 22 is used to discharge wastewater or unwanted water generated during the filtration process. The flange fixed at its bottom end facilitates connection with drainage equipment to ensure smooth drainage. The control valve 23 is used to control the opening and closing of the drain pipe 22, and can control the discharge of wastewater according to actual needs.

[0046] Working Principle: When using the filtration structure of this water purifier, firstly, the mounting plate 1 is fixed to the corresponding position of the water purifier with bolts through the mounting holes 19. Using the reserved slot 18, the top shell 2 is fixed to the mounting plate 1 with mounting bolts 17. The U-shaped block 15 on the top of the top shell 2 provides a stable installation position for the water supply pipe 4, ensuring the water supply pipe 4 is securely installed. Next, the pleated filter element 84 is inserted into the mounting cylinder 83, which is placed in the filter cylinder 81. Five sets of positioning rings 10 position the pleated filter element 84 to prevent it from moving or shifting. The cover plate 82 is then placed on top, completing the assembly of the filter assembly 8. The assembled filter assembly 8 is placed into the mounting frame 6, and the bottom of the mounting frame 6 is sealed with the base plate 7. The mounting frame 6 is then threadedly connected to the inner wall of the top shell 2 via the threaded connector 11. The mounting frame 6, along with the filter assembly 8, is installed inside the top shell 2 and the sleeve 3. The first threaded groove 13 and the second threaded groove 14 mate. A stable connection is achieved between the top shell 2 and the sleeve 3. After installation, the filtration process begins. The external water supply equipment is connected through the flange at one end of the inlet pipe 20. The water to be filtered enters the water supply pipe 4 through the inlet pipe 20. When the water flows to the first guide pipe 5, it enters the sleeve 3 through the guide pipe 5 and undergoes initial filtration by the first set of filter components 8. The water after initial filtration re-enters the water supply pipe 4 through the outlet hole 9 on the inner wall of the water supply pipe 4. Due to the partition, the water does not flow out directly. When the water flows to the second set of guide pipes 5, it flows into the second set of sleeves 3 and undergoes secondary filtration by the second set of filter components 8. The filtered water flows back into the water supply pipe 4 through the second outlet hole 9 and is finally discharged through the outlet pipe 21, meeting the water purifier's water requirements. In addition, the wastewater generated during the filtration process can be discharged through the drain pipe 22. The control valve 23 can control the opening and closing of the drain pipe 22 to discharge wastewater as needed.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A filter structure for a water purifier, comprising a mounting plate (1), characterized in that: The bottom of the mounting plate (1) is equipped with two sets of top shells (2), the bottom of the top shell (2) is provided with a sleeve (3), the top of the top shell (2) is connected to a horizontally arranged water supply pipe (4), the inner wall of the water supply pipe (4) is connected to two sets of water guide pipes (5), and the bottom ends of the two sets of water guide pipes (5) respectively penetrate the inner wall of the two sets of top shells (2). The sleeve (3) is provided with an installation frame (6), and a base plate (7) is inserted into the bottom of the installation frame (6). The installation frame (6) is provided with a filter assembly (8). The inner wall of the water supply pipe (4) is provided with a water outlet (9), and the inner wall of the water supply pipe (4) is fixed with a partition plate for separating the water outlet (9) from the water guide pipe (5). The filter assembly (8) includes a filter cartridge (81) installed inside the mounting frame (6). Both the upper and lower ends of the filter cartridge (81) are provided with cover plates (82), and the inner wall of the cover plates (82) has multiple sets of through holes. The filter cartridge (81) is provided with a mounting cylinder (83), and multiple sets of folded filter elements (84) are inserted into the inner wall of the mounting cylinder (83).

2. The filtration structure of the water purifier as described in claim 1, characterized in that: The inner wall of the filter cartridge (81) is fixed with positioning rings (10) for positioning the folded filter element (84), and the number of positioning rings (10) is five.

3. The filtration structure of the water purifier as described in claim 1, characterized in that: The top of the mounting frame (6) is fixed with a threaded connector (11), and the outer side of the threaded connector (11) is threadedly connected to the inner wall of the top shell (2). A positioning piece (12) is fixed to the outer side of the threaded connector (11).

4. The filtration structure of the water purifier as described in claim 1, characterized in that: The outer side of the top shell (2) is provided with a first threaded groove (13), and the inner wall of the sleeve (3) is provided with a second threaded groove (14), and the outer side of the first threaded groove (13) is threadedly connected to the inner wall of the second threaded groove (14).

5. The filtration structure of the water purifier as described in claim 1, characterized in that: The top of the top shell (2) is fixed with a U-shaped block (15) for installing the water pipe (4), and four sets of mounting blocks (16) are fixed on the top of the top shell (2). The inner wall of the mounting block (16) is threaded with mounting bolts (17) for installing the top shell (2).

6. The filtration structure of the water purifier as described in claim 5, characterized in that: The mounting plate (1) is designed in an L shape. The inner wall of the mounting plate (1) is provided with a reserved groove (18) for providing installation space for the mounting bolts (17). The inner wall of the mounting plate (1) is provided with mounting holes (19).

7. The filtration structure of the water purifier as described in claim 1, characterized in that: The two ends of the water supply pipe (4) are respectively connected to the inlet pipe (20) and the outlet pipe (21), and a flange is fixed at one end of both the inlet pipe (20) and the outlet pipe (21).

8. The filtration structure of the water purifier as described in claim 1, characterized in that: The bottom of the sleeve (3) is connected to a drain pipe (22), and a flange is fixed at the bottom end of the drain pipe (22). A control valve (23) is provided on the outside of the drain pipe (22).