Multilayer filtering device for indoor air purification

By using a connecting mechanism of ball, sliding rod, and spring, combined with a transparent sliding tube and limiting groove design, the problem of needing to stop the air purifier when replacing the dehumidifying drying plate and the air purification plate in the existing technology is solved. This enables quick replacement and intuitive inspection, improving the practicality and convenience of the air purifier.

CN223740938UActive Publication Date: 2025-12-30SHENZHEN JUNYE CONSTR TECH CO LTD
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Patent Information

Application Number
CN202422906969.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-12-30
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing indoor air purification devices require shutdown when replacing the dehumidification drying plate and the air purification plate, and it is not convenient to visually observe the usage, which affects normal purification operations.

Method used

The system employs a connecting mechanism of ball clamping, sliding rod, and spring, combined with a transparent sliding tube and limiting groove design, to enable quick replacement and intuitive inspection of activated carbon plates and filter plates, ensuring uninterrupted operation of the purification device.

Benefits of technology

It enables quick replacement of activated carbon plates and filter plates without affecting the normal operation of air purification. The transparent sliding tube allows for observation of the usage status, facilitating timely replacement and improving the practicality and convenience of the device.

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Abstract

The utility model relates to the field of air purification, in particular to a multi-layer filtering device for indoor air purification, which comprises a treatment box, an axial flow fan, an activated carbon plate and a filtering plate, the number of the connecting mechanisms is twenty-four; the connecting mechanism comprises clamping balls arranged in the treatment box, the outer side of the activated carbon plate and the outer side of the filter plate are each provided with a set of clamping grooves matched with the clamping balls, and detection pieces are arranged in the activated carbon plate and the filter plate; the activated carbon plate and the filter plate can be quickly replaced, air purification operation can be normally carried out in the replacement process, meanwhile, a user can observe the use conditions of the activated carbon plate and the filter plate at any time, and replacement can be conveniently carried out according to the use conditions.
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Description

Technical Field

[0001] This utility model relates to the field of air purification, and in particular to a multi-layer filtration device for indoor air purification. Background Technology

[0002] Air purification refers to providing comprehensive solutions for various indoor environmental problems, such as sterilization and disinfection, dust reduction and haze removal, removal of harmful decoration residues and odors, to improve living and working conditions and enhance physical and mental health. People are paying more and more attention to air purification products, and providing an air purifier will improve people's quality of life.

[0003] A search revealed that the Chinese patent "A Filter Device for Indoor Air Purification" (authorization announcement number CN213885389U) includes an indoor air purification box for purifying indoor air. An air inlet filter is installed at the air inlet of the air purification channel. Parallel dehumidifying and drying plates and air-purifying plates are inserted into the top of the indoor air purification box. A protective filter screen is installed at the air inlet end of the air inlet filter. The dehumidifying and drying plates and air-purifying plates are inserted into the indoor air purification box for easy installation and disassembly, and can be replaced periodically. However, in actual use, once the dehumidifying and drying plates or air-purifying plates are disassembled, the purification device needs to be shut down, affecting the normal operation of the air purification process. Furthermore, it is not convenient to visually observe the condition of the dehumidifying and drying plates or air-purifying plates, making it difficult to determine when to replace them.

[0004] Therefore, a multi-layer filtration device for indoor air purification is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-layer filter device for indoor air purification in order to solve the above-mentioned problems, thereby improving the problem that the purification equipment needs to be shut down during disassembly and assembly, and that the dehumidification drying plate and the air purification plate are not easy to observe intuitively.

[0006] The present invention achieves the above objectives through the following technical solution: a multi-layer filtration device for indoor air purification, comprising a processing box with an air inlet on one side and an axial flow fan, an activated carbon plate and a filter plate installed therein in sequence.

[0007] The number of connecting mechanisms is twenty-four.

[0008] The connecting mechanism includes a retaining ball disposed inside the processing box. A set of retaining grooves matching the retaining ball are provided on the outer side of both the activated carbon plate and the filter plate. Detection elements are disposed inside both the activated carbon plate and the filter plate.

[0009] Preferably, the connecting mechanism further includes a sliding rod slidably connected to the inside of the processing box, one end of the sliding rod being fixedly connected to a ball, and the other end of the sliding rod being provided with a spring fixedly installed inside the processing box.

[0010] Preferably, the detection element includes a sliding tube, two of which are respectively disposed inside the activated carbon plate and the filter plate. Activated carbon strips and cotton strips are respectively installed inside the two sliding tubes. The activated carbon strips are located inside the activated carbon plate, and the cotton strips are located inside the filter plate. A set of through holes is opened on the outer side of the sliding tube.

[0011] Preferably, the sliding tube is made of transparent plastic, and a pull ring is provided at one end of the sliding tube.

[0012] Preferably, a filter screen is provided inside the air inlet.

[0013] Preferably, the processing box has two sets of limiting grooves inside, and the activated carbon plate and filter plate are slidably connected to the processing box through the limiting grooves.

[0014] Preferably, a docking channel is formed between the outer side of the activated carbon plate and the filter plate and the limiting groove.

[0015] The beneficial effects of this utility model are:

[0016] 1. By setting a retaining ball, combined with a spring and sliding rod, the retaining ball and spring can be tightly engaged with the grooves on the activated carbon plate and filter plate to achieve a fixed installation effect. When it is necessary to replace the activated carbon plate and filter plate, the user can place the activated carbon plate and filter plate into the corresponding docking channel and slide along the limiting groove to squeeze the original activated carbon plate and filter plate. At this time, the retaining ball is squeezed out along the groove, and then the new activated carbon plate and filter plate will squeeze the original activated carbon plate and filter plate out along the inside of the treatment box to achieve quick replacement. During the replacement process, the new and old activated carbon plates and filter plates move synchronously without affecting the normal operation of air purification.

[0017] 2. By setting up cotton strips and activated carbon strips, users can observe the amount of dust accumulation on the cotton strips and the color change and odor emission of the activated carbon strips to understand the usage of the activated carbon plate and filter plate, which is more intuitive and makes it easier to determine when to replace them. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded view of the processing box and activated carbon plate structure of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the activated carbon strip and cotton strip structure of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the processing box and limiting groove structure of this utility model;

[0022] Figure 5 The structure of this utility model Figure 2 Enlarged diagram of A in the middle;

[0023] Figure 6 The structure of this utility model Figure 4 Enlarged diagram of B in the diagram.

[0024] In the diagram: 100, processing box; 110, limiting groove; 200, axial flow fan; 300, activated carbon plate; 400, filter plate; 500, connecting mechanism; 510, ball clamp; 520, sliding rod; 530, spring; 600, detection piece; 610, sliding tube; 611, activated carbon strip; 612, cotton strip; 613, through hole. Detailed Implementation

[0025] 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.

[0026] In practical implementation: such as Figure 1-6 As shown, a multi-layer filtration device for indoor air purification includes a treatment box 100 with an air inlet on one side and an axial flow fan 200, an activated carbon plate 300, and a filter plate 400 installed sequentially inside the treatment box 100; a connecting mechanism 500, the number of which is twenty-four; the connecting mechanism 500 includes a retaining ball 510 disposed inside the treatment box 100, and a set of retaining grooves matching the retaining ball 510 are opened on the outer side of the activated carbon plate 300 and the filter plate 400, and a detection element 600 is disposed inside the activated carbon plate 300 and the filter plate 400.

[0027] like Figure 5 and Figure 6 As shown, the connecting mechanism 500 also includes a sliding rod 520 that is slidably connected to the inside of the processing box 100. One end of the sliding rod 520 is fixedly connected to the ball 510, and the other end of the sliding rod 520 is provided with a spring 530 that is fixedly installed inside the processing box 100.

[0028] A spring 530 pushes a sliding rod 520 and a retaining ball 510, causing the retaining ball 510 to engage with the corresponding slots on the activated carbon plate 300 and filter plate 400, thus completing the installation of the activated carbon plate 300 and filter plate 400. When it is necessary to replace the activated carbon plate 300, the user can align the new activated carbon plate 300 with the used activated carbon plate 300, and then push the new activated carbon plate 300 into the treatment box 100. During the pushing process, the used activated carbon plate 300 will squeeze the retaining ball 510, causing the retaining ball 510 and the sliding rod 520 to be squeezed into the treatment box 100. Then, the new activated carbon plate 300 slowly moves to... Inside the treatment chamber 100, after moving to the appropriate position, the used activated carbon plate 300 will be squeezed and fall to the outside of the treatment chamber 100. Then, when the slot on the new activated carbon plate 300 aligns with the retaining ball 510, the spring 530 will push the sliding rod 520 and the retaining ball 510 to reset, so that the retaining ball 510 fits into the slot on the activated carbon plate 300, completing the installation. The replacement process of the filter plate 400 is the same as described above. During the replacement process, the new and old activated carbon plates 300 move synchronously in a fitted state, which can normally purify the gas introduced into the treatment chamber 100 without stopping the purification device, making it more convenient.

[0029] like Figure 2 and Figure 3 As shown, the testing component 600 includes a sliding tube 610. Two sliding tubes 610 are respectively disposed inside the activated carbon plate 300 and the filter plate 400. Activated carbon strips 611 and cotton strips 612 are respectively installed inside the two sliding tubes 610. Activated carbon strips 611 are located inside the activated carbon plate 300, and cotton strips 612 are located inside the filter plate 400. A set of through holes 613 are opened on the outer side of the sliding tube 610. The sliding tube 610 is made of transparent plastic, and a pull ring is provided at one end of the sliding tube 610.

[0030] With the through hole 613, the portion introduced into the treatment box 100 will enter the sliding tube 610 along the through hole 613, and then be discharged alternately. The user can periodically pull out the corresponding sliding tube 610. Since its material is transparent plastic, it is easy for the user to observe the amount of dust accumulation on the cotton strip 612 and the color change and odor emission of the activated carbon strip 611, thereby determining the usage of the activated carbon plate 300 and the filter plate 400, and selecting the replacement time according to the usage.

[0031] like Figure 2 As shown, a filter is installed inside the air inlet.

[0032] The filter screen pre-intercepts impurities in the outside air, and users can wipe the filter screen periodically to complete the cleaning operation.

[0033] like Figure 4 and Figure 6As shown, the interior of the treatment box 100 is provided with two sets of limiting grooves 110, and the activated carbon plate 300 and the filter plate 400 are slidably connected to the treatment box 100 through the limiting grooves 110.

[0034] The use of the limiting groove 110 makes it easier to prevent the activated carbon plate 300 and the filter plate 400 from shifting during replacement operations.

[0035] like Figure 1 As shown, there are docking channels between the outer side of the activated carbon plate 300 and the filter plate 400 and the limiting groove 110.

[0036] With the docking channel setup, during replacement operations, users can pre-place one side of the new activated carbon plate 300 and filter plate 400 into the docking channel to achieve rapid alignment and improve replacement efficiency.

[0037] Working Principle: During air purification, the axial flow fan 200 is activated, drawing outside air into the treatment box 100 through the air inlet. A filter screen pre-intercepts external debris, while filter plates 400 intercept particulate matter in the air, creating a multi-layer filtration effect. Activated carbon plates 300 adsorb harmful substances and impurities in the air, achieving air purification. When the activated carbon plate 300 needs replacement, the user places one side of the new activated carbon plate 300 into the docking channel, aligning it with the original activated carbon plate 300. Then, the new activated carbon plate 300 is pushed into the treatment box 100 along the corresponding limiting groove 110. During this pushing process, the used activated carbon plate 300 will compress the retaining ball 510, causing the retaining ball 510 to engage with the original plate. The sliding rod 520 is pressed into the interior of the treatment box 100. Then, the new activated carbon plate 300 slowly moves into the interior of the treatment box 100. When it moves to the appropriate position, the used activated carbon plate 300 will be squeezed off to the outside of the treatment box 100. Subsequently, when the slot on the new activated carbon plate 300 aligns with the retaining ball 510, the spring 530 will push the sliding rod 520 and the retaining ball 510 to reset, so that the retaining ball 510 fits into the slot on the activated carbon plate 300, completing the installation. The replacement process of the filter plate 400 is the same as described above. During the replacement process, the new and old activated carbon plates 300 move synchronously in a fitted state, which can normally purify the gas introduced into the treatment box 100 without the need to stop the purification device, making it more practical.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style 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.

Claims

1. A multi-layer filter device for purifying indoor air, characterized by comprising: Include: One side of the processing box (100) is provided with air inlet and air outlet, and the inside of the processing box (100) is sequentially installed with axial flow fan (200), activated carbon plate (300) and filter plate (400); The connecting mechanism (500) is twenty-four in number; The connecting mechanism (500) includes a clamping ball (510) arranged in the processing box (100), a group of clamping grooves matched with the clamping ball (510) are formed on the outer side of the activated carbon plate (300) and the filter plate (400), and a detection piece (600) is arranged in the activated carbon plate (300) and the filter plate (400); The connecting mechanism (500) further includes a sliding rod (520) slidingly connected to the inside of the processing box (100), one end of the sliding rod (520) is fixedly connected with the clamping ball (510), and the other end of the sliding rod (520) is provided with a spring (530) fixedly installed in the inside of the processing box (100); The detection piece (600) includes a sliding tube (610), two sliding tubes (610) are arranged in the inside of the activated carbon plate (300) and the filter plate (400) respectively, an activated carbon strip (611) and a cotton strip (612) are installed in the inside of the two sliding tubes (610) respectively, the activated carbon strip (611) is in the inside of the activated carbon plate (300), the cotton strip (612) is in the inside of the filter plate (400), and a group of through holes (613) are formed on the outer side of the sliding tube (610).

2. The multi-layer filter device for purifying indoor air according to claim 1, wherein: The material of the sliding tube (610) is transparent plastic, and one end of the sliding tube (610) is provided with a pull ring.

3. The multi-layer filter device for purifying indoor air according to claim 1, wherein: The inside of the air inlet is provided with a filter screen.

4. The multi-layer filter device for purifying indoor air according to claim 1, wherein: Two groups of limiting grooves (110) are formed in the inside of the processing box (100), and the activated carbon plate (300) and the filter plate (400) are slidingly connected with the processing box (100) through the limiting grooves (110).

5. A multi-layer filter device for purifying indoor air according to claim 4, wherein: The outer side of the activated carbon plate (300), the filter plate (400) and the limiting groove (110) form a butt joint channel.

Citation Information

Patent Citations

  • Filtering device for indoor air purification

    CN213885389U