Composite filter element structure and water purification device
By adopting a composite filter element structure in the water purification equipment, multiple filter elements are integrated into a single filter bottle body, solving the problems of large equipment size and water leakage, and achieving a compact design and efficient filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN MICRO MIDEA FILTER MFG CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-02
AI Technical Summary
Existing water purification equipment often uses multiple filter cartridges, resulting in large equipment size, high space occupancy, and easy leakage at pipe connections.
The composite filter element structure integrates multiple filter elements into a single filter bottle body. The single filter bottle design reduces the number of pipe connections, and the fixed connection method ensures airtightness.
The filter element structure is more compact, reducing the space occupied by the water purification equipment, enhancing the sealing performance, reducing the risk of leakage, and increasing the water purification flow rate.
Smart Images
Figure CN224307929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purification, and in particular to a composite filter structure and water purification equipment. Background Technology
[0002] With social development and improved living standards, more and more people are paying attention to drinking water health. Water quality is closely related to people's health, thus the market demand for water purification equipment is expanding rapidly. As the core component of water purification equipment, the filter element directly affects the purification effect. In current technology, for environments requiring high water flow rates, the number of filter elements needed in water purification equipment is correspondingly increased, resulting in a larger overall size and higher space occupancy. Furthermore, the use of detachable pipes connecting the various filter elements to the water purification equipment makes these connections prone to leakage.
[0003] It should be noted that the above content is only used to help understand the technical solution of this utility model, and does not represent an admission that the above content is prior art. Utility Model Content
[0004] The main purpose of this utility model is to propose a composite filter element structure and a water purification device, which aims to improve the overall structural compactness of the filter element structure and thus reduce the space occupancy of the water purification device; at the same time, the composite filter element structure reduces the number of pipe connections, thereby reducing the risk of water leakage.
[0005] To achieve the above objectives, this utility model proposes a composite filter element structure;
[0006] Specifically, the composite filter structure includes:
[0007] The filter bottle body has at least two cavity structures inside.
[0008] At least two filter cartridge bodies, each of which is disposed in a cavity structure; the filter cartridge body divides the cavity structure into a first receiving cavity and a second receiving cavity that are independent of each other; the filter cartridge inlet end of the filter cartridge body is connected to the first receiving cavity, and the filter cartridge outlet end of the filter cartridge body is connected to the second receiving cavity;
[0009] Any two adjacent first accommodating cavities are interconnected, and one of the first accommodating cavities is provided with a main water inlet; any two adjacent second accommodating cavities are interconnected, and one of the second accommodating cavities is provided with a main water outlet.
[0010] In one embodiment, the filter bottle body includes a filter bottle portion and a plurality of filter bottle caps, each of the filter bottle caps being fitted and connected to the filter bottle portion to form the cavity structure.
[0011] In one embodiment, the filter element body includes an upper end cap, a filter element column, and a lower end cap arranged sequentially from top to bottom; the lower end cap is fixedly connected to the filter bottle portion, and the annular side of the upper end cap is provided with an outwardly protruding sealing portion, which is sealed to the inner wall of the cavity structure, so that the cavity structure is divided into a first receiving cavity and a second receiving cavity.
[0012] In one embodiment, a sealing ring is fixedly sleeved on the side of the sealing part, and the sealing part is sealed to the inner wall of the cavity structure through the sealing ring.
[0013] In one embodiment, the sealing portion is fixedly fitted with at least two sealing rings.
[0014] In one embodiment, the side of the lower end cap away from the filter element column is fitted and connected to the filter bottle portion.
[0015] In one embodiment, the upper end cap is provided with a connecting pipe, one end of which is connected to the water outlet of the filter element, and the other end of which is connected to the filter bottle cap; the connecting pipe has a connecting channel inside, and a water outlet is provided on the side of the connecting pipe, which is connected to the second receiving cavity; the water outlet of the filter element, the connecting channel, and the water outlet are connected in sequence.
[0016] In one embodiment, any two adjacent first receiving cavities are connected by a first pipe, wherein the first pipe is fixedly connected to the filter bottle body; and / or, any two adjacent second receiving cavities are connected by a second pipe, wherein the second pipe is fixedly connected to the filter bottle body.
[0017] In one embodiment, the filter bottle body includes two cavity structures, which are arranged on opposite sides of the left and right sides; correspondingly, there are two filter element bodies, and each filter element body corresponds to one of the cavity structures.
[0018] To achieve the above objectives, this utility model proposes a water purification device, which includes a composite filter structure as described in any of the above claims.
[0019] In this invention, raw water enters from the main inlet of the filter bottle body and flows into multiple first receiving chambers. Within the first receiving chambers, the raw water enters the filter element body through the filter element inlet for filtration. The filtered raw water flows through the filter element outlet to the second receiving chamber. The raw water from the multiple second receiving chambers converges into the second receiving chamber with the main outlet and is finally discharged from the main outlet of the filter bottle body. This structure, by integrating multiple filter elements into a single filter bottle body, effectively improves the overall structural compactness of the filter element, thereby reducing the space occupied by the water purification equipment. Furthermore, by simultaneously filtering raw water with multiple filter elements, the water purification flow rate of the water purification equipment can be increased, meeting the demand for high-flow-rate water purification. Simultaneously, due to the single filter bottle body design, i.e., an integrated filter bottle design, any two adjacent first receiving chambers and any two adjacent second receiving chambers within the filter bottle body are interconnected, reducing the number of pipe connections and thus lowering the risk of water leakage. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0021] Figure 1 A schematic diagram of an embodiment of the composite filter element structure provided by this utility model;
[0022] Figure 2 An internal schematic diagram of an embodiment of the composite filter element structure provided by this utility model (the arrows in the figure indicate the flow path of the raw water).
[0023] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;
[0024] Figure 4 for Figure 2 A magnified view of a section at point B in the middle.
[0025] Explanation of reference numerals in the attached figures:
[0026] 100. Filter bottle body; 110. Filter bottle section; 120. Filter bottle cover; 130. First pipe; 140. Second pipe; 200. Cavity structure; 210. First receiving cavity; 220. Second receiving cavity; 300. Filter element body; 310. Upper end cover; 320. Filter element column; 330. Lower end cover; 340. Sealing part; 341. Sealing ring; 350. Connecting pipe; 351. Connecting channel; 352. Water outlet; 360. Filter element inlet end; 370. Filter element outlet end; 400. Main inlet end; 500. Main outlet end;
[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of the embodiments of this utility model, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0030] Furthermore, it should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0031] In existing technologies, for environments requiring high water flow rates, the number of filter cartridges needed in water purification equipment is correspondingly increased, resulting in a larger overall size of the water purification equipment and thus a larger space occupancy rate. At the same time, the various filter cartridges are connected to the water purification equipment using detachable pipes, which can easily lead to leakage risks at the connection points.
[0032] To solve the above-mentioned technical problems, this utility model proposes a composite filter element structure.
[0033] Please see Figures 1 to 2 In one embodiment of this utility model, the composite filter element structure includes:
[0034] The filter bottle body 100 has at least two cavity structures 200 inside.
[0035] At least two filter cartridge bodies 300 are provided, each filter cartridge body 300 being disposed in a cavity structure 200; the filter cartridge body 300 divides the cavity structure 200 into a first receiving cavity 210 and a second receiving cavity 220 that are independent of each other; the filter cartridge inlet end 360 of the filter cartridge body 300 is connected to the first receiving cavity 210, and the filter cartridge outlet end 370 of the filter cartridge body 300 is connected to the second receiving cavity 220;
[0036] Any two adjacent first receiving cavities 210 are interconnected, and one of the first receiving cavities 210 is provided with a main water inlet 400; any two adjacent second receiving cavities 220 are interconnected, and one of the second receiving cavities 220 is provided with a main water outlet 500.
[0037] In this invention, raw water enters from the main inlet 400 of the filter bottle body 100 and flows into multiple first receiving chambers 210. Within the first receiving chambers 210, the raw water enters the filter element body 300 through the filter element inlet 360 for filtration. The filtered raw water in the filter element body 300 flows through the filter element outlet 370 to the second receiving chamber 220. The raw water in the multiple second receiving chambers 220 converges into the second receiving chamber 220, which is equipped with a main outlet 500, and is finally discharged from the main outlet 500 of the filter bottle body 100. This structure, by integrating multiple filter element bodies 300 into a single filter bottle body 100, effectively improves the overall structural compactness of the filter element structure, thereby reducing the space occupancy of the water purification equipment. Furthermore, by simultaneously performing raw water filtration with multiple filter element bodies 300, the water purification throughput of the water purification equipment can be increased, meeting the demand for high-throughput water purification. Meanwhile, due to the adoption of a single filter bottle body 100 design, i.e., an integrated filter bottle design, any two adjacent first receiving cavities 210 and any two adjacent second receiving cavities 220 in the filter bottle body 100 are interconnected, which can reduce the number of pipe connections and thus reduce the risk of water leakage.
[0038] In this embodiment, the filter bottle body 100 includes two cavity structures 200, which are arranged on opposite sides. Correspondingly, there are two filter element bodies 300, with each filter element body 300 corresponding to one of the cavity structures 200. It is understood that those skilled in the art, based on their understanding of the technical solution of this application, can increase or decrease the number of cavity structures 200 and filter element bodies 300 on the filter bottle body 100 without creative effort, according to different water purification flow requirements, to achieve product customization and scalability, and meet diverse user filtration requirements. This should also fall within the scope of protection of this application.
[0039] There are many specific structures for the filter bottle body 100. In this embodiment, please refer to the attached diagram. Figures 1 to 2 The filter bottle body 100 includes a filter bottle portion 110 and several filter bottle caps 120, each filter bottle cap 120 being closed and connected to the filter bottle portion 110 to form a cavity structure 200. This arrangement makes the installation and replacement of the filter element body 300 more convenient and quick. Understandably, when installing or replacing the filter element body 300, the user can expose the filter element body 300 housed in the cavity structure 200 by opening the filter bottle cap 120, which helps improve the installation efficiency between the filter element body 300 and the filter bottle body 100. The filter bottle portion 110 and the filter bottle caps 120 can be connected by threads or snap-fit connections; this application does not impose specific limitations on this, as long as the filter bottle portion 110 and the filter bottle caps 120 can be sealed to prevent raw water leakage from the connection between the filter bottle portion 110 and the filter bottle caps 120.
[0040] There are many specific structures for the filter element body 300. In this embodiment, please refer to the attached diagram. Figures 1 to 3 The filter element body 300 includes an upper end cap 310, a filter element column 320, and a lower end cap 330 arranged sequentially from top to bottom. The lower end cap 330 is fixedly connected to the filter bottle portion 110. The annular side of the upper end cap 310 is provided with a protruding sealing portion 340, which is sealed to the inner wall of the cavity structure 200, thereby dividing the cavity structure 200 into a first receiving cavity 210 and a second receiving cavity 220. This arrangement, with the annular side of the upper end cap 310 providing the protruding sealing portion 340, effectively prevents raw water from leaking through the gap between the filter element body 300 and the cavity structure 200, ensuring the independence of the first receiving cavity 210 and the second receiving cavity 220, and ensuring the smooth implementation of the technical solution of this application. Meanwhile, the modular design of the filter body 300, consisting of an upper end cover 310, a filter column 320, and a lower end cover 330, facilitates the individual processing and manufacturing of each component. By using different materials and processes to produce the upper end cover 310, the filter column 320, and the lower end cover 330 separately, and then assembling them, production efficiency and product quality are improved.
[0041] Understandably, the filter element column 320 in the filter element body 300 has a hollow cylindrical design and is made of filtration materials such as RO reverse osmosis membrane. During the raw water filtration operation, the raw water mainly passes through the outer side of the filter element column 320 to its interior, and the RO reverse osmosis membrane and other filtration materials in the filter element column 320 are used to filter the raw water. Therefore, the outer side of the filter element column 320 is defined as the filter element inlet end 360, and the interior of the filter element column 320 is defined as the filter element outlet end 370.
[0042] Further, refer to Figure 3 A sealing ring 341 is fixedly sleeved on the side of the sealing part 340, and the sealing part 340 is sealed to the inner wall of the cavity structure 200 through the sealing ring 341. This design achieves a sealed connection between the sealing part 340 and the inner wall of the cavity structure 200 using a commercially available sealing ring 341, resulting in a simple and practical structure. It effectively prevents leakage of raw water between the first receiving cavity 210 and the second receiving cavity 220, ensuring the normal operation of the filtration process.
[0043] Furthermore, the sealing part 340 is fixedly fitted with at least two sealing rings 341. This arrangement, with at least two sealing rings 341, provides a more reliable sealing effect; even if one sealing ring 341 experiences minor wear or aging, the other sealing ring 341 can still perform its sealing function, greatly reducing the risk of raw water leakage and ensuring the stable operation of the water purification equipment.
[0044] Furthermore, the side of the lower end cap 330 furthest from the filter element column 320 is fitted into the filter bottle portion 110. This arrangement, with the lower end cap 330 fitted into the filter bottle portion 110, makes the connection between the filter element body 300 and the filter bottle body 100 more secure, enhancing the stability of the filter element body 300 within the filter bottle body 100. Simultaneously, the fitted connection allows for precise positioning of the filter element body 300 within the cavity structure 200, ensuring that the filter element body 300 is accurately placed in the predetermined position during installation. This avoids problems such as poor sealing or short-circuiting of water flow due to installation deviations, improving the assembly quality and performance of the water purification equipment.
[0045] As a preferred embodiment of the above embodiments, refer to Figure 4The upper end cap 310 is provided with a connecting pipe 350. One end of the connecting pipe 350 is connected to the water outlet end 370 of the filter element, and the other end of the connecting pipe 350 is connected to the filter bottle cap 120. The connecting pipe 350 has a connecting channel 351 inside and a water outlet hole 352 on the side of the connecting pipe 350, which is connected to the second receiving cavity 220. The water outlet end 370 of the filter element, the connecting channel 351, and the water outlet hole 352 are connected in sequence. In this configuration, the connecting pipe 350 serves as the connection medium between the filter element body 300 and the filter bottle cap 120, thereby improving the integrity between the filter element body 300 and the filter bottle body 100. Simultaneously, when the filter bottle cap 120 and the filter bottle section 110 are connected, the connecting pipe 350 and the lower end cap 330 are simultaneously compressed by the filter bottle cap 120 and the filter bottle section 110, preventing the filter element body 300 from moving within the cavity structure 200. This allows for rapid installation of the filter element body 300 and the filter bottle body 100, improving installation efficiency. Furthermore, it avoids problems such as poor sealing caused by displacement of the filter element body 300 and the filter bottle body 100 due to external impacts, thus improving the overall quality of the water purification equipment. In addition, during the disassembly and installation of the filter element body 300, the connecting pipe 350 can serve as a handle, allowing the user to pull and move the filter element body 300 from the filter bottle section 110 by holding the connecting pipe 350, further improving installation efficiency.
[0046] As a preferred embodiment of the above embodiments, refer to Figure 2 Any two adjacent first receiving cavities 210 are connected by a first pipe 130, wherein the first pipe 130 is fixedly connected to the filter bottle body 100; and / or, any two adjacent second receiving cavities 220 are connected by a second pipe 140, wherein the second pipe 140 is fixedly connected to the filter bottle body 100. This configuration, by connecting adjacent first receiving cavities 210 and second receiving cavities 220 respectively via the first pipe 130 and the second pipe 140, ensures stable flow of raw water between the cavities. Furthermore, the fixed connection between the first pipe 130 and the second pipe 140 and the filter bottle body 100, unlike a detachable connection, reduces the risk of leakage due to movable connections.
[0047] This utility model also discloses a water purification device, including the composite filter element structure of any of the above embodiments. For the specific structure of the composite filter element, please refer to the above embodiments. Since this water purification device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be elaborated further here.
[0048] It should be noted that the composite filter structure and other contents of the water purification equipment disclosed in this utility model are existing technologies and will not be described in detail here.
[0049] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any application of this utility model directly or indirectly in other related technical fields is included within the patent protection scope of this utility model.
Claims
1. A composite filter cartridge structure, characterized by: The composite filter element structure includes: The filter bottle body has at least two cavity structures inside. At least two filter cartridge bodies, each of which is disposed in a cavity structure; the filter cartridge body divides the cavity structure into a first receiving cavity and a second receiving cavity that are independent of each other; the filter cartridge inlet end of the filter cartridge body is connected to the first receiving cavity, and the filter cartridge outlet end of the filter cartridge body is connected to the second receiving cavity; Any two adjacent first accommodating cavities are interconnected, and one of the first accommodating cavities is provided with a main water inlet; any two adjacent second accommodating cavities are interconnected, and one of the second accommodating cavities is provided with a main water outlet.
2. The composite filter element structure of claim 1, wherein: The filter bottle body includes a filter bottle section and a plurality of filter bottle caps, each of the filter bottle caps being fitted and connected to the filter bottle section to form the cavity structure.
3. The composite filter structure as described in claim 2, characterized in that: The filter element body includes an upper end cap, a filter element column, and a lower end cap arranged sequentially from top to bottom; the lower end cap is fixedly connected to the filter bottle part, and the annular side of the upper end cap is provided with an outwardly protruding sealing part, which is sealed to the inner wall of the cavity structure, so that the cavity structure is divided into the first receiving cavity and the second receiving cavity.
4. The composite filter structure as described in claim 3, characterized in that: A sealing ring is fixedly sleeved on the side of the sealing part, and the sealing part is sealed to the inner wall of the cavity structure through the sealing ring.
5. The composite filter structure as described in claim 4, characterized in that: The sealing part is fixedly fitted with at least two sealing rings.
6. The composite filter element structure as described in claim 3, characterized in that: The lower end cap is fitted and connected to the filter bottle on the side away from the filter element column.
7. The composite filter element structure as described in claim 3, characterized in that: The upper end cap is provided with a connecting pipe, one end of which is connected to the water outlet of the filter element, and the other end of which is connected to the filter bottle cap; the connecting pipe has a connecting channel inside and a water outlet hole on the side of the connecting pipe, which is connected to the second receiving cavity; the water outlet of the filter element, the connecting channel, and the water outlet hole are connected in sequence.
8. The composite filter element structure as described in claim 1, characterized in that: Any two adjacent first receiving cavities are connected by a first pipe, wherein the first pipe is fixedly connected to the filter bottle body; and / or, any two adjacent second receiving cavities are connected by a second pipe, wherein the second pipe is fixedly connected to the filter bottle body.
9. The composite filter element structure according to any one of claims 1 to 8, characterized in that: The filter bottle body includes two cavity structures, which are arranged on opposite sides of the left and right sides; correspondingly, there are two filter element bodies, and each filter element body corresponds to one of the cavity structures.
10. A water purification device, characterized in that: The water purification device includes the composite filter structure as described in any one of claims 1 to 9.