Replaceable double-layer filter core structure

Abstract

The utility model relates to filter core technical field especially, more particularly to replaceable double -deck filter core structure, including base, be equipped with filter core subassembly on the base, and filter core subassembly includes the outer filter ring and inner filter ring of joint in base, and the bottom of outer filter ring and inner filter ring is fixed with L shape strip one and L shape strip two respectively, and L shape strip one and L shape strip two all are short side upward, and the base is provided with the slot one and the slot two of respectively with L shape strip one and L shape strip two adapt, and L shape strip one and L shape strip two are inserted into the slot one and the slot two respectively. The utility model discloses through setting up the joint cooperation structure of L shape strip and the slot of outer filter ring and inner filter ring respectively with base, has realized the independent installation and disassembly of double -deck filter core, not only convenient operation, need not with additional tool, can also replace one alone according to the loss condition of filter core, effectively reduced the use cost, solved the resource waste problem caused by traditional filter core integral replacement.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically a replaceable double-layer filter structure. Background Technology

[0002] In the field of filtration equipment, filter elements are core components, and their structural design directly affects filtration efficiency, ease of replacement, and operating costs. Currently, traditional multi-layer filter elements often adopt an integrated design, with each layer fixedly connected as a single unit. When one layer becomes clogged or worn out, the entire filter element assembly needs to be replaced, which not only wastes materials but also increases operating costs. Furthermore, the installation and removal of some multi-layer filter elements require specialized tools, making the operation cumbersome and inconvenient for users. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides a replaceable double-layer filter element structure, which has the advantage of replacing different filter elements individually, and solves the problem that it is difficult to replace multi-layer filter elements individually.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: The replaceable double-layer filter structure includes a base, on which a filter assembly is provided. The filter assembly includes an outer filter ring and an inner filter ring that are snapped onto the base. An L-shaped strip one and an L-shaped strip two are respectively fixed to the bottom of the outer filter ring and the inner filter ring. Both L-shaped strip one and L-shaped strip two have their short sides facing upwards. The base has slot one and slot two that are adapted to L-shaped strip one and L-shaped strip two respectively. L-shaped strip one and L-shaped strip two are respectively inserted into slot one and slot two.

[0005] Preferably, a sealing plate is fixedly connected to the base, a rubber telescopic sleeve is connected to the sealing plate, a conical top is fixedly connected to the top of the rubber telescopic sleeve, and a spring is fixedly connected between the sealing plate and the conical top.

[0006] Preferably, a sealing cap is fitted over the outer filter ring and the inner filter ring, and a water inlet is provided in the middle of the sealing cap.

[0007] Preferably, the filtration accuracy of the outer filter ring is higher than that of the inner filter ring, and the filter hole diameter of the outer filter ring is 0.5-2mm, while that of the inner filter ring is 0.1-0.4mm.

[0008] Preferably, the outer filter ring is made of glass fiber and the inner filter ring is made of polypropylene.

[0009] Preferably, the inner wall of the sealing cap is provided with an internal thread, and the top of the outer wall of the outer filter ring is provided with an external thread that matches the internal thread. The sealing cap and the outer filter ring are connected by threads.

[0010] By employing the above technical solution, this utility model provides a replaceable double-layer filter element structure, which has at least the following beneficial effects: 1. This replaceable dual-layer filter structure uses an L-shaped strip and slot-based snap-fit ​​structure for the outer and inner filter rings to engage with the base, enabling independent installation and removal of the dual-layer filter. This not only makes operation convenient and requires no additional tools, but also allows for individual replacement of one filter based on its wear condition, effectively reducing operating costs and solving the resource waste problem caused by replacing the entire filter in traditional methods.

[0011] 2. This replaceable dual-layer filter structure, by setting the outer filter ring to have a higher filtration precision than the inner filter ring and using different materials, combined with the sliding connection between the two and the cooperation of the sealing cap, forms a graded filtration system. The inner layer first performs high-precision interception, and the outer layer performs deeper filtration, giving full play to the characteristics of different materials and improving the overall filtration efficiency and stability. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application: Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the outer filter ring, the outer filter ring, and the base of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model; Figure 5 This is an exploded view of the L-shaped strip and the slot of this utility model.

[0013] Figure label: 1. Base; 2. Filter element assembly; 21. Outer filter ring; 22. Inner filter ring; 23. L-shaped strip one; 24. Slot one; 25. L-shaped strip two; 26. Slot two; 3. Sealing cover; 4. Sealing plate; 5. Rubber telescopic sleeve; 6. Conical top; 7. Spring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] The replaceable double-layer filter structure provided by some embodiments of this utility model is described below with reference to the accompanying drawings.

[0016] Example 1: Combination Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the replaceable double-layer filter structure provided by this utility model includes a base 1, on which a filter element assembly 2 is provided. The filter element assembly 2 is composed of an outer filter ring 21 and an inner filter ring 22, and a sealing cap 3 with a water inlet is also fitted on top, forming a double-layer filtration structure, which can improve the filtration effect. The filter element includes an outer filter ring 21 and an inner filter ring 22 that are snapped onto the base 1. L-shaped strips 23 and 25 are respectively fixed to the bottom of the outer filter ring 21 and the inner filter ring 22, with their short sides facing upwards. The base 1 has slots 24 and 26 that are respectively adapted to the L-shaped strips 23 and 25. The L-shaped strips 23 and 25 are inserted into slots 24 and 26 respectively. First, the L-shaped strip 25 on the inner filter ring 22 is inserted into slot 26. Then, the inner filter ring 22 is rotated, causing the L-shaped strip 25 to rotate in a circular motion, allowing it to be fully inserted. Insert the outer filter ring 21 into slot 26, and then fix it in the same way. This completes the installation of the outer filter ring 21 and the inner filter ring 22. When it is necessary to replace the outer filter ring 21 and the inner filter ring 22, reverse the outer filter ring 21 and the inner filter ring 22 respectively, so that the L-shaped strip 1 23 and the L-shaped strip 25 can be removed. The inner filter ring 22 and the outer filter ring 21 adopt an independent snap-fit ​​design, which can be installed and replaced separately. Users can replace one of the outer filter ring 21 or the inner filter ring 22 individually according to the actual filtration needs and wear conditions, without replacing the whole ring, thus reducing the cost of use.

[0017] Specifically, a sealing cap 3 is fitted over the outer filter ring 21 and the inner filter ring 22, and a water inlet is provided in the middle of the sealing cap 3.

[0018] Furthermore, the filtration accuracy of the outer filter ring 21 is higher than that of the inner filter ring 22, and the filter hole diameter of the outer filter ring 21 is 0.5-2mm, while that of the inner filter ring 22 is 0.1-0.4mm.

[0019] The outer filter ring 21 is made of glass fiber, and the inner filter ring 22 is made of polypropylene.

[0020] The inner wall of the sealing cover 3 is provided with an internal thread, and the top of the outer wall of the outer filter ring 21 is provided with an external thread that matches the internal thread. The sealing cover 3 and the outer filter ring 21 are connected by threads. After the inner filter ring 22 and the outer filter ring 21 are installed, the sealing cover 3 is installed by rotating it.

[0021] As can be seen from the embodiments, the outer filter ring 21 and the inner filter ring 22 can be installed and replaced independently. Compared with traditional integral filter elements or multi-layer fixed connection structures, replacing filter elements with different levels of wear (such as replacing only the outer layer or the inner layer) reduces maintenance costs and simplifies the operation process, solving the problems of material waste and cumbersome operation caused by the need to replace the entire filter element in traditional methods.

[0022] Example 2: Combination Figure 2 and Figure 4 As shown in Embodiment 1, a sealing plate 4 is fixedly connected to the base 1, and a rubber telescopic sleeve 5 is connected to the sealing plate 4. A conical top 6 is fixedly connected to the top of the rubber telescopic sleeve 5, and a spring 7 is fixedly connected between the sealing plate 4 and the conical top 6. When the water flow is too small, the spring 7 pushes the conical top 6 to rise, and then the conical top 6 can unfold the rubber telescopic sleeve 5. As a result, the water will splash outward after contacting the conical top 6, so that the water can permeate out from above the inner filter ring 22, avoiding the water from all accumulating at the bottom and permeating out, which would reduce the bottom filtration effect. Conversely, when the water flow is too large, the conical top 6 will move downward due to the impact of the water flow, so that the water flow can be evenly distributed to the periphery. Then, the water flow can be guided according to the size of the water flow, which is beneficial for water filtration and prevents the water flow from concentrating and impacting a certain area. This ensures that the filtration area of ​​the outer filter ring 21 and the inner filter ring 22 is fully utilized, and improves the uniformity of the overall filtration effect.

[0023] It can dynamically respond to changes in water flow and adjust the water flow direction without manual intervention, so that the filter structure can maintain good filtration performance in scenarios with unstable water flow, thus enhancing the equipment's adaptability to complex water environments.

[0024] As can be seen from the above embodiments: In use, first, align the L-shaped strip 25 at the bottom of the inner filter ring 22 with the slot 26 on the base 1 and insert it. Rotate the inner filter ring 22 to make the L-shaped strip 25 rotate until it is fully inserted into the slot 26 to fix the inner filter ring 22. Then, follow the same steps to fix the outer filter ring 21 on the base 1 through the cooperation of the L-shaped strip 23 and the slot 24. Then, rotate and install the sealing cover 3 through the internal thread and the external thread on the top of the outer filter ring 21, so that the sealing cover 3 is fitted above the inner and outer filter rings 21. The water flows in from the inlet in the middle of the sealing cover 3, first undergoes high-precision preliminary filtration through the inner filter ring 22, and then flows into the outer filter ring 21 through the sliding connection structure for further filtration. When the water flow is small, the spring 7 between the sealing plate 4 and the conical top 6 on the base 1 pushes the conical top 6 upward, causing the rubber telescopic sleeve 5 to unfold. After the water flows into the conical top 6, it splashes outward and permeates and filters from above the inner filter ring 22, preventing water from accumulating at the bottom and affecting the filtration effect. When the water flow is large, the impact force of the water flow causes the conical top 6 to move downward, compressing the spring 7 and the rubber telescopic sleeve 5, so that the water flow can be evenly distributed to the outside for filtration. When the filter element needs to be replaced, rotate it in the opposite direction to remove the sealing cover 3, and reverse the outer filter ring 21 and the inner filter ring 22 respectively to remove the L-shaped strip 23 and L-shaped strip 25 from the slot 24 and slot 26, so that the outer filter ring 21 and the inner filter ring 22 can be removed and replaced.

[0025] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A replaceable double-layer filter element structure, including a base (1), characterized in that: The base (1) is provided with a filter element assembly (2); The filter element assembly (2) includes an outer filter ring (21) and an inner filter ring (22) that are snapped onto the base (1). The bottom of the outer filter ring (21) and the inner filter ring (22) are respectively fixed with an L-shaped strip (23) and an L-shaped strip (25). The short side of the L-shaped strip (23) and the L-shaped strip (25) are both facing upward. The base (1) is provided with a slot (24) and a slot (26) that are adapted to the L-shaped strip (23) and the L-shaped strip (25) respectively. The L-shaped strip (23) and the L-shaped strip (25) are inserted into the slot (24) and the slot (26) respectively.

2. The replaceable double-layer filter structure according to claim 1, characterized in that: A sealing plate (4) is fixedly connected to the base (1), a rubber telescopic sleeve (5) is connected to the sealing plate (4), a conical top (6) is fixedly connected to the top of the rubber telescopic sleeve (5), and a spring (7) is fixedly connected between the sealing plate (4) and the conical top (6).

3. The replaceable double-layer filter structure according to claim 1, characterized in that: A sealing cap (3) is fitted over the outer filter ring (21) and the inner filter ring (22), and a water inlet is provided in the middle of the sealing cap (3).

4. The replaceable double-layer filter structure according to claim 1, characterized in that: The filtration accuracy of the outer filter ring (21) is higher than that of the inner filter ring (22), and the filter hole diameter of the outer filter ring (21) is 0.5-2mm, while the filter hole diameter of the inner filter ring (22) is 0.1-0.4mm.

5. The replaceable double-layer filter structure according to claim 1, characterized in that: The outer filter ring (21) is made of glass fiber, and the inner filter ring (22) is made of polypropylene.

6. The replaceable double-layer filter structure according to claim 3, characterized in that: The inner wall of the sealing cap (3) is provided with an internal thread, and the top of the outer wall of the outer filter ring (21) is provided with an external thread that matches the internal thread. The sealing cap (3) and the outer filter ring (21) are connected by threads.

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