Filter element

Abstract

The filter element comprises a shell, a water guide pipe and two filter pieces, a filter cavity is formed in the shell, a water inlet and a water outlet are formed in the bottom of the shell and communicate with the filter cavity, one end of the water guide pipe is connected to the water outlet in a sealed mode, and the other end of the water guide pipe is connected to the water inlet in a sealed mode. The other end of the water guide pipe extends to the cavity top of the filtering cavity, and a gap is reserved between the water guide pipe and the cavity top of the filtering cavity for liquid to pass through; the two filtering pieces are arranged at the cavity bottom and the cavity top of the filtering cavity respectively, a containing space used for containing a filtering material is formed between the two filtering pieces, the filtering piece located at the cavity bottom of the filtering cavity at least covers the water inlet, and the filtering piece located at the cavity top of the filtering cavity isolates the gap from the containing space. The filter material is effectively prevented from blocking the water inlet and the water outlet, and the filter element is ensured to always keep efficient filtration.

Description

Technical Field

[0001] This application relates to the technical field of filter elements, and more particularly to a filter element. Background Technology

[0002] In the field of liquid filtration technology, the filter element, as a core filtration component, directly affects the efficiency and stability of the entire filtration system. The filter media filled inside the filter element is a key element in effectively intercepting and filtering impurities and particulate matter in the liquid. Different filter media materials and structures can play a targeted filtration role against specific types of impurities, thereby ensuring that the filtered liquid meets the expected purity standards.

[0003] However, in existing filter cartridge designs and applications, as liquid continuously flows through the cartridge, the filter media inside is prone to loosening, displacement, or even breakage due to the combined effects of water flow impact, pressure changes, and the inherent characteristics of the filter media itself. Once this occurs, the filter media can easily enter the inlet or outlet with the liquid flow. When filter media enters the inlet, it gradually accumulates, reducing the inlet's flow area and thus restricting the liquid flow rate into the filter cartridge, affecting the normal liquid intake of the filtration system. Similarly, when filter media enters the outlet, it can cause blockage, hindering the smooth discharge of filtered liquid, increasing system pressure, reducing filtration efficiency, and in severe cases, even causing the entire filtration system to malfunction. Utility Model Content

[0004] The purpose of this invention is to provide a filter element that can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On one hand, a filter element is provided, comprising: a housing, a water guide pipe, and two filter elements. The housing has a filter chamber inside, and the bottom of the housing has a water inlet and a water outlet, both of which are connected to the filter chamber. One end of the water guide pipe is sealed to the water outlet, and the other end of the water guide pipe extends to the top of the filter chamber. A gap is reserved between the water guide pipe and the top of the filter chamber for liquid to pass through.

[0007] The two filter elements are respectively disposed at the bottom and top of the filter chamber, and a receiving space for placing filter media is formed between the two filter elements. The filter element located at the bottom of the filter chamber at least covers the water inlet, and the filter element located at the top of the filter chamber isolates the gap and the receiving space.

[0008] Furthermore, the bottom of the filter chamber is provided with a first step corresponding to the position of the water outlet, and the water guide pipe is sealed and inserted inside the first step.

[0009] Furthermore, the bottom of the filter chamber is provided with a second step corresponding to the position of the water inlet, and the second step is provided with a through groove connecting its inner and outer sides.

[0010] Furthermore, the outer casing includes a housing and an end cap, the end cap being detachably mounted on the top of the housing, and the inlet and outlet being spaced apart at the bottom of the housing.

[0011] Furthermore, a locking structure is provided at the connection between the housing and the end cap.

[0012] Furthermore, the locking structure includes a first locking buckle disposed on the outer wall of the housing and a second locking buckle disposed on the inner wall of the end cap, wherein the first locking buckle and the second locking buckle cooperate to lock together.

[0013] Furthermore, the locking structure also includes an anti-disengagement buckle disposed on the outer edge of the housing and an anti-disengagement groove disposed on the inner edge of the end cap, wherein the anti-disengagement buckle can be embedded in the anti-disengagement groove.

[0014] Furthermore, a sealing element is provided at the connection between the housing and the end cap.

[0015] Furthermore, a fixing seat is provided on the outer wall surface of the outer casing.

[0016] Furthermore, the bottom of the outer casing is provided with a first connecting post corresponding to the water inlet and a second connecting post corresponding to the water outlet, and the interior of the first connecting post and the second connecting post forms an inlet and outlet channel.

[0017] The beneficial effects of this application are as follows: by setting a filter element at least covering the inlet at the bottom of the filter chamber, the movement of the filter media towards the inlet is effectively intercepted, preventing the filter media from entering the inlet and causing blockage; at the same time, the filter element located at the top of the filter chamber isolates the gap and containment space between the water guide pipe and the top of the filter chamber, preventing the filter media from entering the gap and further entering the water guide pipe, thereby preventing the filter media from flowing out of the outlet, ensuring unobstructed flow of the inlet and outlet, allowing the liquid to pass smoothly through the filter element, greatly improving the stability and reliability of the filtration system, reducing the number of downtime cleaning and maintenance caused by inlet and outlet blockage, and reducing production costs. Attached Figure Description

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1This is a perspective view of the filter element described in the embodiments of this application;

[0020] Figure 2 This is an exploded view of the filter element described in the embodiments of this application;

[0021] Figure 3 This is a schematic diagram of the interior of the housing described in the embodiment of this application;

[0022] Figure 4 This is a perspective view of the end cap described in an embodiment of this application;

[0023] Figure 5 This is a cross-sectional view of the filter element described in the embodiment of this application.

[0024] In the diagram: 1. Outer shell; 101. Shell; 102. End cap; 2. Water guide pipe; 3. Filter element; 4. Filter media; 5. First step; 6. Locking structure; 601. First locking buckle; 602. Second locking buckle; 603. Anti-disengagement buckle; 604. Anti-disengagement groove; 7. Sealing element; 8. Fixing base; 9. First connecting post; 10. Second connecting post; 11. Water inlet; 12. Water outlet; 13. Second step; 14. Through groove. Detailed Implementation

[0025] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] like Figures 1-5 As shown, this embodiment provides a filter element, including: a housing 1, a water guide pipe 2, and two filter elements 3. The housing 1 has a filter chamber inside. The bottom of the housing 1 is provided with a water inlet 11 and a water outlet 12. The water inlet 11 and the water outlet 12 are both connected to the filter chamber. One end of the water guide pipe 2 is sealed and connected to the water outlet 12. The other end of the water guide pipe 2 extends to the top of the filter chamber. A gap is reserved between the water guide pipe 2 and the top of the filter chamber for liquid to pass through.

[0029] Two filter elements 3 are respectively disposed at the bottom and top of the filter chamber, forming a receiving space for placing filter media 4 between the two filter elements 3. The filter element 3 located at the bottom of the filter chamber at least covers the water inlet 11, and the filter element 3 located at the top of the filter chamber isolates the gap and the receiving space.

[0030] Based on the above scheme, when this filter element is working, the liquid enters the filter chamber from the inlet 11 at the bottom of the outer shell 1. Since the filter element 3 located at the bottom of the filter chamber at least covers the inlet 11, the liquid first undergoes preliminary filtration through the filter element 3, intercepting larger particles of impurities. Then, it enters the receiving space formed between the two filter elements 3, where filter media 4 is placed. The liquid flows through the filter media 4, which further adsorbs and filters tiny impurities and particulate matter in the liquid, achieving deep purification. The liquid filtered by the filter media 4 flows upward to the top of the filter chamber. At this point, the filter element 3 located at the top of the filter chamber isolates the gap between the water guide pipe 2 and the top of the filter chamber from the receiving space, preventing the filter media 4 from entering the gap. The liquid can only enter the water guide pipe 2 through the gap between the water guide pipe 2 and the top of the filter chamber, and then flow out of the outlet 12 from the water guide pipe 2, completing the entire filtration process.

[0031] This filter element has several significant beneficial effects. First, in preventing the filter media 4 from entering the inlet and outlet, by setting a filter element 3 at least covering the inlet 11 at the bottom of the filter chamber, the movement of the filter media 4 towards the inlet 11 is effectively intercepted, preventing the filter media 4 from entering the inlet 11 and causing blockage. At the same time, the filter element 3 located at the top of the filter chamber isolates the gap and containment space between the water guide pipe 2 and the top of the filter chamber, preventing the filter media 4 from entering the gap and further entering the water guide pipe 2, thereby preventing the filter media 4 from flowing out of the outlet 12, ensuring unobstructed flow at the inlet and outlet, allowing the liquid to pass smoothly through the filter element, greatly improving the stability and reliability of the filtration system, reducing the number of downtime cleaning and maintenance caused by inlet and outlet blockage, and reducing production costs.

[0032] Secondly, in terms of filtration effect, the liquid passes through the initial filtration of the bottom filter element 3, the deep filtration of the filter media 4, and the further interception of the top filter element 3 in sequence, forming a multi-stage filtration mechanism. This can remove various impurities and particulate matter in the liquid more comprehensively and effectively, significantly improving the quality of the filtered liquid and meeting the strict requirements of different fields for liquid purity.

[0033] Finally, this structural design is reasonable and compact. One end of the water guide pipe 2 is sealed and connected to the water outlet 12, and the other end extends to the top of the filter chamber with a reserved gap for liquid to pass through. While ensuring that the liquid is smoothly discharged, the space of the filter chamber is fully utilized, making the overall structure of the filter element more optimized, easy to install and use, and has high practicality and promotion value.

[0034] Furthermore, the bottom of the filter chamber is provided with a first step 5 corresponding to the position of the water outlet 12, and the water guide pipe 2 is sealed and inserted into the inner side of the first step 5. When the filter element performs filtration, the liquid flows in the filter chamber. The first step 5, with its specific protruding position and structure, provides a precise installation positioning point for the water guide pipe 2, allowing the water guide pipe 2 to be stably inserted into the inner side of the first step 5. Due to the support and limitation of the first step 5, the water guide pipe 2 can still maintain a stable position under complex working conditions such as vibration during equipment operation, without shifting or shaking. At the same time, the water guide pipe 2 and the first step 5 are tightly fitted to achieve a sealed insertion, guiding the filtered liquid accurately into the water guide pipe 2 and smoothly discharged.

[0035] Furthermore, the bottom of the filter chamber is provided with a second step 13 corresponding to the position of the inlet 11. The second step 13 has a through groove 14 connecting its inner and outer sides. The existence of the through groove 14 breaks the limitation of liquid simply entering the filter chamber directly from the inlet 11, effectively creating an additional liquid outflow channel near the inlet 11. This design brings significant benefits. By increasing the outlet area of ​​the filter element 3 (mainly referring to the component or filter media 4 that plays a preliminary role in regulating liquid flow near the inlet 11 and its contact surface with the inlet area), the through groove 14 significantly reduces the resistance encountered by the liquid when entering the filter chamber through the inlet 11 area. The liquid can flow into the filter chamber more quickly and smoothly, not only improving the efficiency of liquid entering the filter element but also avoiding problems such as liquid accumulation and abnormal pressure at the inlet 11 due to excessive resistance. This ensures the stability and balance of liquid flow inside the filter element, thus creating favorable conditions for the subsequent efficient filtration of the liquid by the filter media 4, and contributing to improving the overall filtration performance and service life of the filter element.

[0036] In some embodiments, the housing 1 includes a housing 101 and an end cap 102. The end cap 102 is detachably mounted on the top of the housing 101, and the inlet 11 and the outlet 12 are spaced apart at the bottom of the housing 101. When the filter element needs to be assembled, the end cap 102 is detachably connected to the top of the housing 101 to form a complete filter chamber structure. At this time, the inlet 11 and the outlet 12 at the bottom of the housing 101 become the channels for liquid to enter and exit the filter chamber. During filtration, the liquid flows into the filter chamber from the inlet 11, is processed by the filter media 4 and the filter element 3, and then flows out from the outlet 12. After the filter element has been used for a period of time, the filter media 4 may need to be replaced due to the adsorption of impurities, or the filter element 3 may need to be cleaned and maintained. At this time, the end cap 102 can be removed from the top of the housing 101, and the filter media 4, filter element 3, etc. in the filter chamber can be operated directly without the need for complex disassembly of the entire filter element.

[0037] The connection between the housing 101 and the end cap 102 is provided with a locking structure 6. The locking structure 6 ensures the stability and sealing of the connection between the housing 101 and the end cap 102, effectively preventing liquid leakage at the connection, ensuring the normal pressure and flow of the filtration system, and maintaining good filtration performance. At the same time, the detachable end cap 102 design with the locking structure 6 facilitates quick opening of the filter element for maintenance, and allows for reliable resealing of the filter element after maintenance through the locking structure 6, ensuring the stability and durability of the filter element structure, reducing maintenance difficulty and cost, improving the convenience and reliability of filter element use, and enabling it to better meet the diverse needs of actual production and use.

[0038] Specifically, the locking structure 6 includes a first locking buckle 601 disposed on the outer wall of the housing 101 and a second locking buckle 602 disposed on the inner wall of the end cover 102, wherein the first locking buckle 601 and the second locking buckle 602 cooperate to lock together; the locking structure 6 also includes an anti-disengagement buckle 603 disposed on the outer edge of the housing 101 and an anti-disengagement groove 604 disposed on the inner edge of the end cover 102, wherein the anti-disengagement buckle 603 can be embedded in the anti-disengagement groove 604. When assembling the filter element, the end cap 102 is placed on top of the housing 101, aligning the first locking buckle 601 on the outer wall of the housing 101 with the second locking buckle 602 on the inner wall of the end cap 102, achieving initial locking. Simultaneously, the anti-disengagement buckle 603 on the outer edge of the housing 101 is embedded in the anti-disengagement groove 604 on the inner edge of the end cap 102, further enhancing the stability of the connection. This forms a closed filtration chamber, allowing liquid to enter from the inlet 11 at the bottom of the housing 101, pass through the filter media 4 and filter element 3, and flow out from the outlet 12. When maintenance of the filter element is required, the first locking buckle 601 and the second locking buckle 602 are separated by a specific operation method (such as pressing, rotating, etc., depending on the design of the locking buckles), and the anti-disengagement buckle 603 disengages from the anti-disengagement groove 604, allowing the end cap 102 to be opened for operation of the components within the filtration chamber.

[0039] This solution brings several significant benefits. In terms of connection stability, the locking mechanism of the first locking buckle 601 and the second locking buckle 602, along with the engagement of the anti-disengagement buckle 603 and the anti-disengagement groove 604, provides double protection for the tightness of the connection between the housing 101 and the end cap 102. This effectively prevents the end cap 102 from loosening or falling off during filtration due to factors such as liquid pressure and equipment vibration, avoiding liquid leakage and reduced filtration efficiency, and ensuring stable operation of the filter element under various working conditions. In terms of maintenance convenience, the detachable end cap 102 design, combined with the locking structure 6, makes filter element maintenance simple and easy. No complex tools are needed; the end cap 102 can be quickly opened for operations such as replacing the filter media 4 and cleaning the filter element 3, greatly shortening maintenance time and reducing maintenance costs. In terms of structural durability, this locking structure 6 is rationally designed, with tight fit between components that are not easily damaged. It can withstand multiple disassembly and assembly operations, extending the overall service life of the filter element and improving product reliability and economy.

[0040] Meanwhile, a sealing element 7 is also provided at the connection between the housing 101 and the end cap 102. The sealing element 7 greatly enhances the sealing performance at the connection between the housing 101 and the end cap 102, effectively preventing liquid leakage from the connection during the filtration process. This avoids problems such as reduced filtration efficiency, liquid waste, and pollution to the surrounding environment caused by leakage, ensuring that the filter element is always in a stable and efficient filtration state. Moreover, the good sealing performance maintains stable pressure within the filtration chamber, allowing the liquid to flow along a predetermined path and in a predetermined manner, fully contacting the filter media 4 and the filter element 3, improving the accuracy and quality of filtration, and meeting the stringent requirements for liquid purity in different application scenarios.

[0041] In addition, a fixing seat 8 is provided on the outer wall of the housing 1. The fixing seat 8 allows the filter element to be firmly installed in the designated position, effectively preventing the filter element from loosening or shifting during operation, ensuring the reliability of the connection between the filter element and other components of the equipment, as well as the stability of the liquid flow channel, thereby ensuring the continuity and efficiency of the filtration process.

[0042] It is worth mentioning that the bottom of the outer casing 1 is respectively provided with a first connecting post 9 corresponding to the inlet 11 and a second connecting post 10 corresponding to the outlet 12. Both the first connecting post 9 and the second connecting post 10 have inlet and outlet channels inside. When liquid enters the system, it flows smoothly into the filter chamber from the inlet 11 through the inlet channel inside the first connecting post 9 via the external pipe connected to it. In the filter chamber, the liquid undergoes layer-by-layer processing by the filter media 4 and filter element 3 to remove impurities and contaminants, and then flows out from the outlet 12, through the inlet and outlet channel inside the second connecting post 10, into the external pipe connected to it, and is finally transported to the designated location. From the perspective of connection reliability, the arrangement of the first connecting post 9 and the second connecting post 10 enhances the stability of the connection between the inlet 11 and the outlet 12 and the external pipe, reducing liquid leakage problems caused by loose connections or poor sealing, and ensuring the normal operation of the filtration system. In terms of liquid flow efficiency, the inlet and outlet channels inside the connecting column provide a smooth flow path for the liquid, reducing the resistance of the liquid in the process of entering and exiting the filter element, improving the liquid throughput and filtration efficiency, enabling the filter element to process large amounts of liquid more quickly, and meeting the needs of industrial production and other scenarios with high processing speed requirements.

[0043] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0046] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A filter element, characterized in that, include: The housing (1), water pipe (2), and two filter elements (3) are provided. The housing (1) has a filter chamber inside. The bottom of the housing (1) is provided with an inlet (11) and an outlet (12). The inlet (11) and the outlet (12) are both connected to the filter chamber. One end of the water pipe (2) is sealed to the outlet (12). The other end of the water pipe (2) extends to the top of the filter chamber. A gap is reserved between the water pipe (2) and the top of the filter chamber for liquid to pass through. Two filter elements (3) are respectively disposed at the bottom and top of the filter chamber, and a receiving space for placing filter media (4) is formed between the two filter elements (3). The filter element (3) located at the bottom of the filter chamber at least covers the water inlet (11), and the filter element (3) located at the top of the filter chamber isolates the gap and the receiving space.

2. The filter element according to claim 1, characterized in that, The bottom of the filter chamber is provided with a first step (5) corresponding to the position of the water outlet (12), and the water guide pipe (2) is sealed and inserted inside the first step (5).

3. The filter element according to claim 1, characterized in that, The bottom of the filter chamber is also provided with a second step (13) corresponding to the position of the water inlet (11), and the second step (13) is provided with a through groove (14) connecting its inner and outer sides.

4. The filter element according to any one of claims 1-3, characterized in that, The outer casing (1) includes a housing (101) and an end cap (102). The end cap (102) is detachably installed on the top of the housing (101), and the inlet (11) and the outlet (12) are spaced apart at the bottom of the housing (101).

5. The filter element according to claim 4, characterized in that, A locking structure (6) is provided at the connection between the housing (101) and the end cap (102).

6. The filter element according to claim 5, characterized in that, The locking structure (6) includes a first locking buckle (601) disposed on the outer wall of the housing (101) and a second locking buckle (602) disposed on the inner wall of the end cap (102), wherein the first locking buckle (601) and the second locking buckle (602) cooperate to lock together.

7. The filter element according to claim 6, characterized in that, The locking structure (6) further includes an anti-disengagement buckle (603) disposed on the outer edge of the housing (101) and an anti-disengagement groove (604) disposed on the inner edge of the end cap (102), wherein the anti-disengagement buckle (603) can be embedded in the anti-disengagement groove (604).

8. The filter element according to claim 4, characterized in that, A sealing element (7) is also provided at the connection between the housing (101) and the end cap (102).

9. The filter element according to any one of claims 1-3, characterized in that, A fixing seat (8) is provided on the outer wall surface of the outer shell (1).

10. The filter element according to any one of claims 1-3, characterized in that, The bottom of the outer shell (1) is provided with a first connecting post (9) corresponding to the water inlet (11) and a second connecting post (10) corresponding to the water outlet (12). The interior of the first connecting post (9) and the second connecting post (10) both form inlet and outlet channels.

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