Water purifier filter element with protective structure

Abstract

The utility model is suitable for purifier technical field provides a kind of purifier filter core with protection structure, it includes: shell, the shell includes shell body, water inlet hole and water outlet are equipped on the shell body, for guiding water flow to enter and exit filter core;Filter core main body, nonwoven composite activated carbon rod, gradually tight carbon rod are sequentially equipped in filter core main body along water flow direction, for filtering water flow;The both ends of filter core main body are clamped in clamping groove;The shell and filter core main body are assembled by connector, ensure that each structure coaxial heart cooperation, form stable filter cavity;In the utility model, filter efficiency is promoted: by means of nonwoven composite activated carbon rod, gradually tight carbon rod's step-by-step filtration, in combination with the water flow guidance of first cavity, second cavity, nonwoven cloth efficiently intercepts coarse impurities, gradually tight carbon rod layered filtration, substantially improve water quality stability, prolong the life of activated carbon rod, reduce replacement cost.

Description

Technical Field

[0001] This utility model belongs to the field of water purifier technology, and in particular relates to a water purifier filter element with a protective structure. Background Technology

[0002] In the water purifier industry, the filter element is the core filtration component, and its structural design and protective performance directly affect the water purification effect and the safety of use.

[0003] Traditional filter cartridges often use a single filter material or a simple combination structure, lacking a stepped filtration design. This allows coarse particles to directly enter the high-precision filtration layer, easily causing rapid clogging. This not only reduces the water flow rate but also causes significant fluctuations in filtration accuracy, making it impossible to guarantee stable water quality over the long term. Therefore, a water purifier filter cartridge with a protective structure is needed to solve these problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a water purifier filter element with a protective structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A water purifier filter element with a protective structure includes:

[0007] The outer casing includes a housing with an inlet and an outlet for guiding water flow into and out of the filter element. As the external protective structure of the entire filter element, the reasonable arrangement of the inlet and outlet ensures that water flows into and out of the filter element according to a preset path, providing a basis for the orderly progress of the filtration process.

[0008] The filter element body contains non-woven composite activated carbon rods and gradually tightening carbon rods arranged sequentially along the water flow direction for filtering the water flow. Both ends of the filter element body are snapped into slots. The outer shell is assembled with the filter element body via connectors to ensure that all structures are coaxially aligned, forming a stable filtration chamber. The filter element body is the core component for achieving the filtration function. The two types of carbon rods arranged sequentially along the water flow direction enable stepped filtration, improving the filtration effect. The snapping of both ends of the filter element body into slots and the assembly of the outer shell and the filter element body via connectors ensure the positional accuracy between the structures, ensuring coaxial alignment and forming a stable filtration chamber, thus preventing a decrease in filtration effect or water leakage due to structural misalignment.

[0009] The nonwoven fabric composite activated carbon rod is an integrated structure of nonwoven fabric and activated carbon rod. The nonwoven fabric covers the water inlet side of the activated carbon rod and is set on the side corresponding to the water inlet hole to initially intercept coarse particulate impurities. The integrated structure makes the nonwoven fabric and activated carbon rod tightly bonded, not easy to fall off, and can play a stable role for a long time. The nonwoven fabric is set on the side corresponding to the water inlet hole, which can initially filter the water before it enters the activated carbon rod, effectively intercepting coarse particulate impurities, preventing these impurities from entering the subsequent filtration structure, and extending the service life of the subsequent filtration components.

[0010] The gradually tightening activated carbon rod is a cylindrical structure with a loose outer layer and a tight inner layer. Located on the outlet side of the non-woven fabric composite activated carbon rod, it achieves both filtration accuracy and flow stability through a gradual change in density, providing deep filtration of the water flow. The loose outer layer and tight inner layer design ensures that as the water flows through the gradually tightening activated carbon rod, it first passes through the looser outer layer, filtering out larger residual impurities, and then passes through the gradually tightening inner layer, achieving high-precision filtration. This design guarantees filtration accuracy while avoiding the flow rate reduction problem caused by an overly dense filter layer, thus achieving a dual guarantee of filtration accuracy and flow stability.

[0011] The shell is wrapped around the filter element body and tightly fitted with the internal structure through a connector to form a closed water flow channel. This ensures that after the water enters through the inlet, it passes 100% through the non-woven composite activated carbon rod and the gradually tightening carbon rod, and there is no internal leakage even when the pressure difference exceeds the rated pressure. Finally, the water flows out from the outlet. The shell's wrapping of the filter element body and its tight fit with the internal structure form a closed water flow channel, which can force the water to flow along the preset filtration path, ensuring that every drop of water is fully filtered. Even when the pressure difference exceeds the rated pressure, there will be no internal leakage, ensuring the safety and reliability of the output water.

[0012] Both ends of the filter element body are equipped with sealing structures, which are silicone sealing rings with a Shore hardness of 55HA-60HA. The sealing structures are connected in the slots to seal the ends of the filter element and prevent water leakage. The sealing structure further enhances the sealing performance of the filter element, effectively preventing water leakage from the ends of the filter element, ensuring that all water flows through the filtration components, improving filtration efficiency, and avoiding equipment damage or water pollution caused by water leakage.

[0013] In a further technical solution, a first cavity is provided between the nonwoven composite activated carbon rod and the shell, and a second cavity is provided between the shell and the connector. The width of the first cavity (5) is 5-8 mm and the volume is 15-20 mL, and the width of the second cavity (6) is 3-5 mm and the volume is 8-12 mL. The first cavity and the second cavity provide buffering and guiding space for the water flow, so that the water flow can enter the filter element more evenly and improve the filtration efficiency. At the same time, the existence of the first cavity and the second cavity can also reduce the impact of the water flow on the filter element and extend the service life of the filter element.

[0014] A further technical solution involves the nonwoven fabric composite activated carbon rod, in which the nonwoven fabric completely covers the water inlet end face and part of the side face of the activated carbon rod, with the coverage area accounting for more than 95% of the surface area of ​​the water inlet side of the activated carbon rod. This coverage area is also positioned within the first cavity corresponding to the water inlet hole, effectively intercepting coarse particulate impurities entering the filter element. Such a large coverage area maximizes the interception effect of the nonwoven fabric, ensuring that coarse particulate impurities in the water flowing into the activated carbon rod are fully filtered out. The first cavity configuration ensures that the water flowing in from the water inlet hole first contacts the nonwoven fabric, improving interception efficiency.

[0015] In a further technical solution, the water inlet is connected to the second cavity, and the second cavity is connected to the first cavity; this connection method forms a reasonable water flow channel, allowing the water to pass through the water inlet, the second cavity, and the first cavity in sequence, and then enter the filter component, ensuring smooth water flow and orderly filtration.

[0016] A further technical solution involves using a food-grade high-quality PP material for the outer shell, with a thickness of 2.5-3.5mm. The outer surface features an annular anti-slip texture with a depth of 0.2-0.5mm and a width of 1-2mm, ensuring structural strength while facilitating filter installation and replacement. The food-grade high-quality PP material is non-toxic and harmless, ensuring water quality safety. The appropriate shell thickness guarantees structural strength, providing excellent impact resistance and wear resistance. The annular anti-slip texture increases friction during installation and replacement, making operation more convenient and effortless.

[0017] In a further technical solution, the gradually tightening carbon rod is connected to the water outlet.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention improves filtration efficiency: by using a non-woven fabric composite activated carbon rod and a stepped filtration system with gradually tightening carbon rods, combined with water flow guidance in the first and second cavities, the non-woven fabric efficiently intercepts coarse impurities, and the gradually tightening carbon rods provide layered filtration, which greatly improves the stability of purified water quality, extends the life of activated carbon rods, and reduces replacement costs.

[0020] This utility model enhances the reliability of preventing internal leakage: the outer shell and the filter element body are tightly fitted by the slot and connector to form a closed water flow channel, forcing water to flow through the filter components. There is no internal leakage when the pressure difference exceeds the rated pressure, ensuring the safety of the output water and preventing unfiltered water from mixing in.

[0021] This utility model optimizes safety and environmental protection: the outer shell is made of food-grade PP material, which releases no harmful substances and ensures water quality safety; the high-strength design of the shell is impact-resistant and wear-resistant, reducing damage and scrap, lowering the replacement frequency, and conforming to the concept of environmental protection.

[0022] This invention improves ease of use: the anti-slip texture of the outer shell facilitates installation and replacement; the end sealing structure has strong adaptability and simplifies the assembly process; the pressure detection interface provides real-time feedback on the filter element status, allowing users to replace it in a timely manner and enhancing the user experience.

[0023] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0025] Figure 2 This is a schematic diagram of the structure of the present invention in frontal three-dimensional cross-section;

[0026] Figure 3 This is a partial top-view three-dimensional structural schematic diagram of the present invention;

[0027] Figure 4 This is a partial top-view three-dimensional cross-sectional structural diagram of the present invention.

[0028] In the diagram: 1. Outer shell; 11. Housing; 12. Water inlet; 13. Water outlet; 2. Filter element body; 21. Non-woven composite activated carbon rod; 22. Gradually tightening activated carbon rod; 3. Connector; 4. Slot; 5. First cavity; 6. Second cavity; 7. Sealing structure. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Example 1

[0032] like Figures 1-4 As shown, this utility model embodiment provides a water purifier filter element with a protective structure, including a shell 1 and a filter element body 2;

[0033] The outer shell 1 includes a housing 11, on which a water inlet 12 and a water outlet 13 are provided. The outer shell 1 is made of food-grade high-quality PP material. The housing 11 is 3mm thick and has an annular anti-slip texture on its outer surface with a texture depth of 0.3mm and a width of 1.5mm.

[0034] The filter element body 2 is provided with non-woven composite activated carbon rod 21 and gradually tightening carbon rod 22 in sequence along the water flow direction. Both ends of the filter element body 2 are snapped into the slot 4, and both ends are provided with sealing structure 7. The sealing structure 7 is a silicone sealing ring with a Shore hardness of 55HA, which is connected in the slot 4.

[0035] The outer shell 1 and the filter element body 2 are assembled through the connector 3 to ensure that all structures are coaxially aligned and form a stable filter chamber.

[0036] The nonwoven fabric composite activated carbon rod 21 is an integrated structure of nonwoven fabric and activated carbon rod. The nonwoven fabric covers the water inlet end face and side 10mm area of ​​the activated carbon rod 21, with a coverage area of ​​96%. It is set on one side corresponding to the water inlet hole 12, and a first cavity 5 is provided between the nonwoven fabric composite activated carbon rod 21 and the shell 11.

[0037] The gradually tightening activated carbon rod 22 is a cylindrical structure with a loose outer layer and a tight inner layer. It is made of Sri Lankan raw materials and is located on the water outlet side of the non-woven composite activated carbon rod 21, connected to the water outlet 13.

[0038] A second cavity 6 is provided between the housing 11 and the connector 3. The water inlet 12 is connected to the second cavity 6, and the second cavity 6 is connected to the first cavity 5.

[0039] In this embodiment, it is suitable for daily household water use. After entering through the inlet 12, the water flows through the second cavity 6 and the first cavity 5 in sequence. Under the buffering guidance of the cavities, it comes into uniform contact with the non-woven fabric composite activated carbon rod 21. The non-woven fabric efficiently intercepts suspended solids, rust, and other coarse particulate impurities in the water. The water that has undergone preliminary filtration enters the second cavity 6 and then passes through the gradually tightening carbon rod 22. Its outer layer adsorbs large residual impurities, while the inner layer performs high-precision filtration to ensure that the water is deeply purified. The purified water finally flows out from the outlet 13. The sealing structure 7 effectively prevents water from leaking from the end of the filter element. The anti-slip texture of the outer shell 1 makes it easy for household users to complete the installation and replacement operations. The overall structure ensures the stability of the purified water quality and the convenience of use for household water use.

[0040] Example 2

[0041] The difference between this embodiment and Embodiment 1 is that:

[0042] The non-woven fabric composite activated carbon rod 21 covers the water inlet end face and side 20mm area of ​​the activated carbon rod, with a coverage area of ​​97%.

[0043] The filter structure and the carbon rod assembly are fastened together by bolts.

[0044] The shell 11 of the outer casing 1 has a thickness of 3.5 mm.

[0045] The sealing structure 7 is a silicone sealing ring with a Shore hardness of 60HA.

[0046] In this embodiment, it is suitable for high-flow commercial scenarios such as restaurants and offices; the larger non-woven fabric coverage area improves the interception ability of coarse impurities, and can cope with more coarse particulate impurities that may be contained in the water quality in commercial scenarios; the bolt-fastened filter structure and carbon rod assembly enhance the overall structural strength, can resist the impact of high-flow water, and ensure the stability of the structure under long-term high-flow use; the thicker shell 11 improves the resistance of the outer shell 1 to external force damage, and adapts to collisions, friction and other situations that may occur in commercial environments; the silicone sealing ring with higher Shore hardness serves as the sealing structure 7, which can still maintain good sealing performance under high flow and high pressure, and prevent internal leakage; this embodiment meets the long-term, high-flow water purification needs of commercial scenarios through structural optimization, while the food-grade outer shell 1 ensures the safety of the output water quality.

[0047] Working principle and usage process of this utility model:

[0048] Water flows into the second cavity 6 through the inlet 12 of the outer shell 1. Due to the constraints of the closed structure, it is forced to flow through the non-woven fabric composite activated carbon rod 21. The non-woven fabric intercepts suspended solids, rust, and other coarse particulate impurities. After preliminary filtration, the water flows into the first cavity 5 through the guide channel and passes through the gradually tightening carbon rod 22. The outer layer adsorbs large residual impurities, while the inner layer performs high-precision filtration to ensure water purification. After purification, the water flows out from the outlet 13.

[0049] The outer shell 1 and the filter element body 2 are tightly fitted together by the connector 3 and the slot 4 to prevent internal leakage; the end sealing structure 7 prevents water from leaking from the end.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water purifier filter element with a protective structure, characterized in that, include: The outer casing (1) includes a housing (11), which is provided with a water inlet (12) and a water outlet (13) for guiding water flow into and out of the filter element; The filter element body (2) is provided with non-woven composite activated carbon rods (21) and gradually tightened carbon rods (22) in sequence along the water flow direction for filtering the water flow; both ends of the filter element body (2) are snapped into the slots (4); the outer shell (1) and the filter element body (2) are assembled through the connector (3) to ensure that the various structures are coaxially aligned and form a stable filter cavity; The nonwoven fabric composite activated carbon rod (21) is an integrated structure of nonwoven fabric and activated carbon rod. The nonwoven fabric covers the surface of the activated carbon rod on the water inlet side and is set on the side corresponding to the water inlet hole (12) for preliminary interception of coarse particulate impurities. The gradually tightening carbon rod (22) is a cylindrical structure with a loose outer layer and a tight inner layer. It is located on the water outlet side of the non-woven fabric composite activated carbon rod (21). It achieves dual protection of filtration accuracy and flow stability through density gradual change, and performs deep filtration of water flow. The shell (11) is wrapped around the outside of the filter element body (2) and is tightly fitted with the internal structure through the connector (3) to form a closed water flow channel, ensuring that the water flows through the inlet hole (12) and passes through the non-woven composite activated carbon rod (21) and the gradually tightening carbon rod (22) 100% after entering, and there is no internal leakage when the pressure difference exceeds the rated pressure, and finally flows out from the outlet (13); Both ends of the filter element body (2) are provided with sealing structures (7). The sealing structure (7) is a silicone sealing ring with a Shore hardness of 55HA-60HA. The sealing structure (7) is connected in the slot (4) to seal the end of the filter element and prevent water leakage.

2. The water purifier filter element with a protective structure according to claim 1, characterized in that, A first cavity (5) is provided between the nonwoven composite activated carbon rod (21) and the shell (11), and a second cavity (6) is provided between the shell (11) and the connector (3). The width of the first cavity (5) is 5-8 mm and the volume is 15-20 mL, and the width of the second cavity (6) is 3-5 mm and the volume is 8-12 mL.

3. The water purifier filter element with a protective structure according to claim 2, characterized in that, In the nonwoven fabric composite activated carbon rod (21), the nonwoven fabric completely covers the water inlet end face and part of the side face of the activated carbon rod, and the covering area accounts for more than 95% of the surface area of ​​the water inlet side of the activated carbon rod. It is also set in the first cavity (5) corresponding to the water inlet hole (12) to fully intercept coarse particulate impurities entering the filter element.

4. The water purifier filter element with a protective structure according to claim 1, characterized in that, The water inlet (12) is connected to the second cavity (6), and the second cavity (6) is connected to the first cavity (5).

5. The water purifier filter element with a protective structure according to claim 1, characterized in that, The outer shell (1) is made of food-grade high-quality PP material. The shell (11) is 2.5-3.5mm thick and has an annular anti-slip texture on the outer surface. The texture depth is 0.2-0.5mm and the width is 1-2mm, which ensures structural strength and facilitates the installation and replacement of the filter element.

6. The water purifier filter element with a protective structure according to claim 1, characterized in that, The gradually tightening carbon rod (22) is connected to the water outlet (13).

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