Self-cleaning air filter

Abstract

The utility model provides a self-cleaning air filter, which relates to the field of filters and comprises a self-cleaning filter main body provided with a plurality of filter units; the discharge channel is mounted on the self-cleaning filter main body, and mounting grooves are formed in the two sides of the discharge channel respectively; the filter screen is arranged at the bottom in the mounting groove, and the filter screen is connected with the mounting groove through a convenient-to-disassemble structure. The multiple filtering units can preliminarily filter the entering air. And the filter screen in the discharge channel adopts a convenient-to-disassemble structure, so that the cleaning operation of the filter screen by a user is greatly facilitated. And the filter screen can be easily taken out from the mounting groove only by simple operation, such as opening the sealing cover and pulling the positioning pull plate. By means of the design, a user can regularly clean the filter screen without professional tools or complex operation procedures, it is guaranteed that the filter screen keeps good filtering performance all the time, and the service life of the filter screen is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of filters, and more particularly to a self-cleaning air filter. Background Technology

[0002] In the current field of air filtration technology, self-cleaning air filters have been widely used. Self-cleaning air filters typically consist of multiple filter units, whose main function is to filter incoming air, removing impurities and dust to provide clean air. The filter unit is the core component for air purification; its working principle involves passing air through multiple filter layers, trapping dust and other impurities on the filter media, thus allowing clean air to pass through.

[0003] However, in actual use, the filtered clean air needs to be discharged through a corresponding exhaust channel to achieve the circulation of the entire air filtration system. To achieve this function, existing technologies typically use filters with screens to discharge clean air. However, this structure has certain problems. During long-term use, as air is continuously replaced through the filter, a large number of dust particles are trapped inside. Because traditional filter installation structures are often complex and difficult to disassemble, it is difficult to effectively clean the accumulated dust inside the filter.

[0004] As air filters are used over time, dust accumulates inside the filter screen. This not only reduces the filter's filtration efficiency, affecting the overall performance of the air filter, but also decreases its ventilation capacity, hindering the proper discharge of clean air. More seriously, dust accumulation inside the filter screen can breed bacteria and microorganisms, causing secondary air pollution and posing potential health threats to the environment. Therefore, how to easily clean the filter screen to ensure it remains in good working order, thereby guaranteeing effective air replacement and stable operation of the filtration system, is a crucial issue that urgently needs to be addressed in the design of current self-cleaning air filters.

[0005] To address the aforementioned issues, it is necessary to design a new type of self-cleaning air filter. While ensuring its basic filtration function, it should employ a structure that is easy to disassemble, allowing users to regularly clean the inside of the filter screen. This would effectively guarantee air exchange efficiency and quality, improve the performance and effectiveness of the air filter, extend its service life, meet users' needs for clean air, and avoid various adverse effects caused by inconvenient filter cleaning. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing multiple filtration units for preliminary filtration of incoming air. The easily removable filter screen in the exhaust channel greatly facilitates user cleaning. Through the ingenious design of the positioning pull plate and mounting structure, users can easily remove the filter screen from the mounting slot with a simple operation, such as opening the sealing cover and pulling the positioning pull plate. This design allows users to clean the filter screen regularly without specialized tools or complicated procedures, ensuring that the filter screen maintains good filtration performance and extending its service life.

[0007] In order to solve the above-mentioned technical problems, the present invention solves the problem that traditional filter installation structures are often complicated and inconvenient to disassemble through the following technical solution.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A self-cleaning air filter, comprising:

[0010] The self-cleaning filter body is provided with a plurality of filter units;

[0011] The discharge channel is installed on the self-cleaning filter body, and mounting grooves are provided on both sides of the discharge channel.

[0012] A filter screen is disposed at the bottom of the mounting groove, and the filter screen is connected to the mounting groove via a removable structure, the removable structure comprising:

[0013] A fixed outer frame is installed around the outer periphery of the filter screen;

[0014] Positioning pull plates are connected to both sides of the fixed outer frame;

[0015] The mounting structure is correspondingly set inside the mounting groove, and the positioning pull plate can be assembled inside the mounting structure.

[0016] Preferably, the mounting structure consists of a lower mounting frame, an upper mounting frame, and a plate with a positioning slot connected together. The lower mounting frame is located below the upper mounting frame, and the positioning pull plate can be inserted along the opening of the upper mounting frame so that the filter screen and the fixed outer frame are assembled inside the lower mounting frame.

[0017] Preferably, an inner groove is provided on the upper part of the inner wall of the positioning pull plate.

[0018] Preferably, a sealing cover is provided above the mounting groove, which covers the positioning pull plate.

[0019] Preferably, the top rear end of the sealing cap is connected to a handle.

[0020] Preferably, the mounting structure matches the shape of the inner wall of the mounting groove and forms a fixed connection between the two.

[0021] Preferably, the bottom of the filter extends to the outside of the mounting groove, and a guide is provided on the outer periphery of the extended end of the mounting groove for guiding.

[0022] Preferably, the guide is in an open state.

[0023] Preferably, the opening at the top of the guide is connected to a connector, the connector is fitted to the bottom of the discharge channel, and positioning elements are connected to both sides of the bottom of the discharge channel, the connector being able to be engaged inside the positioning elements.

[0024] Preferably, the positioning element is L-shaped and has elasticity.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The self-cleaning air filter provided in this application features multiple filter units that perform preliminary filtration of incoming air. The easily removable filter screen in the exhaust channel greatly facilitates user cleaning. With simple operations, such as opening the sealing cover and pulling the positioning plate, the filter screen can be easily removed from the mounting slot. This design allows users to clean the filter screen regularly without specialized tools or complicated procedures, ensuring that the filter screen maintains good filtration performance and extending its service life.

[0027] The open design of the guide effectively reduces noise generated by airflow. When air passes through the filter at high speed, the guide optimizes the airflow path, reducing air turbulence and thus lowering noise caused by airflow. This makes the filter quieter during operation, suitable for noise-sensitive environments such as offices and bedrooms. The guide also plays a crucial role in protecting the filter. It prevents external objects from impacting and scratching the filter, avoiding physical damage that could reduce its filtration performance and ensuring the long-term stable operation of the entire filter.

[0028] The installation structure is matched and fixedly connected to the inner wall of the mounting groove, ensuring the stability of the filter screen after installation. At the same time, the sealing cover seals and protects the positioning pull plate, preventing dust from entering the mounting groove and affecting the operation of the filter screen, further guaranteeing the overall stability and reliability of the filter structure.

[0029] The connection between the guide and the bottom of the discharge channel via positioning components and connectors facilitates the installation and removal of the guide while ensuring its stability during operation, thus guaranteeing the efficient operation of the entire filter. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0033] Figure 3 This is a partial structural diagram of the disassembled discharge channel of this utility model;

[0034] Figure 4 This is a partial structural diagram of the discharge channel of this utility model from below;

[0035] Figure 5 This is a bottom view of the guide component of this utility model.

[0036] Figure 6 This is a partial structural diagram showing the disassembled parts of the filter screen and mounting structure of this utility model;

[0037] Figure 7 This is a partial structural schematic diagram of the front cross-section of the discharge channel of this utility model;

[0038] Figure 8 This utility model Figure 7 A magnified structural diagram of point A in the middle.

[0039] Drawing number explanation: 1. Self-cleaning filter body; 101. Filter unit; 2. Discharge channel; 201. Mounting groove; 202. Positioning component; 3. Filter screen; 301. Fixed outer frame; 302. Positioning pull plate; 3022. Inner groove; 4. Mounting structure; 401. Lower mounting frame; 402. Upper mounting frame; 4022. Positioning slot; 5. Sealing cover; 501. Handle; 6. Guide component; 601. Connection port. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings.

[0041] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0042] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0043] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0044] Please see Figure 1-8 A self-cleaning air filter, comprising:

[0045] The self-cleaning filter body 1 is provided with a plurality of filter units 101;

[0046] Discharge channel 2 is installed on the self-cleaning filter body 1, wherein installation grooves 201 are respectively provided on both sides of the discharge channel 2;

[0047] Filter screen 3 is disposed at the bottom of mounting groove 201. Filter screen 3 is connected to mounting groove 201 via a removable structure, which includes:

[0048] The outer frame 301 is fixed and installed on the outer periphery of the filter screen 3;

[0049] Positioning pull plate 302, which is connected to both sides of the fixed outer frame 301;

[0050] Positioning pull plate 302 is correspondingly set inside the mounting groove 201, and positioning pull plate 302 can be assembled inside the mounting structure 4;

[0051] Mounting structure 4 is correspondingly set inside mounting groove 201, and positioning pull plate 302 can be assembled inside mounting structure 4.

[0052] The self-drying air separation tower of this application is mainly composed of a self-cleaning filter body 1, a filter unit 101, a discharge channel 2, a mounting groove 201, a filter screen 3, a fixed outer frame 301, a positioning pull plate 302, and an installation structure 4. The following is a detailed description of the structure and working principle.

[0053] I. Assembly of Self-Cleaning Air Filters

[0054] First, install the filter screen 3 inside the fixed outer frame 301, ensuring the fixed outer frame 301 tightly wraps around the outer periphery of the filter screen 3, providing stable support. Then, connect the positioning pull plate 302 to both sides of the fixed outer frame 301. Open the sealing cover 5 on the discharge channel 2 if the sealing cover 5 is already installed. Since the mounting structure 4 is composed of a lower mounting frame 401, an upper mounting frame 402, and a plate with a positioning slot 4022 connected to each other, and the lower mounting frame 401 is located below the upper mounting frame 402, insert the positioning pull plate 302 along the opening of the upper mounting frame 402, so that the filter screen 3 and the fixed outer frame 301 are assembled inside the lower mounting frame 401. When fully installed, the fixed outer frame 301 and the filter screen 3 are located inside the lower mounting frame 401 in the mounting structure 4, and a tight fit is formed between the outer periphery of the fixed outer frame 301 and the inner wall of the lower mounting frame 401, ensuring stability.

[0055] After the filter screen 3 is installed, the sealing cover 5 is placed on top of the positioning pull plate 302 to prevent dust from entering the mounting groove 201. A handle 501 is connected to the rear end of the top of the sealing cover 5 for easy opening and closing.

[0056] The bottom of the filter screen 3 extends to the outside of the mounting groove 201, and a guide 6 is installed on the outer periphery of the extended end of the mounting groove 201. The connection port 601 with the top opening of the guide 6 fits into the bottom of the discharge channel 2. Positioning members 202 are connected to both sides of the bottom of the discharge channel 2. The positioning members 202 are L-shaped and flexible.

[0057] During installation, press the guide 6 upwards to apply pressure to the bottom of the positioning member 202 through the connector 601, causing it to deform. Then, snap the connector 601 into the gap formed between the two positioning members 202 to complete the installation of the guide 6. Because the guide 6 is in an open state, when air passes through the filter 3 on the exhaust channel 2 at high speed, the open guide 6 can optimize the airflow path, reduce the airflow speed and turbulence, thereby reducing noise generated by airflow, and also protect the filter 3 from damage caused by external impacts or scratches to a certain extent.

[0058] The discharge channel 2, which includes the installed filter screen 3, sealing cover 5, and guide 6, is installed onto the self-cleaning filter body 1. The self-cleaning filter body 1 is equipped with several filter units 101, which, together with the discharge channel 2, complete the function of air filtration and discharge of clean air.

[0059] II. Working Principle

[0060] Air intake filter

[0061] Air first enters the self-cleaning filter body 1. Multiple filter units 101 on the self-cleaning filter body 1 then begin to operate. These filter units 101 typically contain multiple layers of filter media of different materials and pore sizes. As air passes through these filter units 101, larger particles of dust, impurities, etc., are first intercepted by the first, coarser layer of filter media. As the air continues to penetrate deeper, even finer particles are captured by subsequent, finer filter media. This multi-layer filtration mechanism ensures that the air entering the exhaust channel 2 has had most visible and invisible contaminants removed. The air, after initial filtration by the self-cleaning filter body 1, enters the exhaust channel 2. A key component in the exhaust channel 2 is the filter screen 3 installed at the bottom of the mounting slot 201. The filter screen 3 has a specific pore size, capable of further intercepting those tiny particles that were not completely removed in the self-cleaning filter body 1. As air passes through the filter screen 3, these tiny particles are trapped on the filter screen 3, while the thoroughly filtered clean air is discharged through the exhaust channel 2 to the external environment or subsequent air handling equipment.

[0062] Operation mechanism of easy disassembly structure

[0063] The easy-to-remove structure of filter screen 3 is key to the entire design. Filter screen 3 is connected to the mounting structure 4 within the mounting slot 201 via a fixed outer frame 301 and a positioning pull plate 302. When it is necessary to disassemble filter screen 3 for cleaning, the user can first open the sealing cover 5 by grasping the handle 501 at the top rear end of the sealing cover 5. The function of the sealing cover 5 is to prevent external dust from entering the mounting slot 201 during normal filter operation and affecting the filtration effect of filter screen 3.

[0064] After opening the sealing cover 5, the user can see the positioning pull plate 302. Since the upper part of the inner wall of the positioning pull plate 302 has an inner groove 3022, the user can apply pulling force by inserting his / her finger or a tool into the inner groove 3022.

[0065] The mounting structure 4 consists of a lower mounting frame 401, an upper mounting frame 402, and a plate with a positioning slot 4022. During installation, the positioning pull plate 302 is inserted along the opening of the upper mounting frame 402, allowing the filter screen 3 and the fixed outer frame 301 to be assembled inside the lower mounting frame 401. During disassembly, the user pulls the positioning pull plate 302 out in the opposite direction through the inner groove 3022, thus removing the filter screen 3 and the fixed outer frame 301 from the mounting structure 4 within the mounting slot 201. This design makes the disassembly of the filter screen 3 simple and quick, requiring no complex tools or professional skills.

[0066] After removing filter screen 3, the user can clean it by tapping, vacuuming, or washing to remove dust and impurities accumulated on it. After cleaning, reinstall filter screen 3 into the discharge channel 2 by reversing the steps.

[0067] The principle of guide component 6

[0068] When air passes through exhaust channel 2, especially at high airflow rates, the high-speed airflow through filter 3 can generate significant airflow noise. The open design of guide 6 alters the airflow path. As air exits filter 3, the open structure of guide 6 allows the air to gradually diffuse, rather than directly impacting the surrounding environment at high speed. This diffusion reduces the local velocity of the airflow and decreases the generation of air turbulence. According to fluid mechanics principles, turbulence is one of the main causes of noise; by reducing turbulence, guide 6 effectively reduces the noise generated by airflow.

[0069] The mesh structure of the filter screen 3 is relatively fragile and easily damaged by external factors. During normal operation of the discharge channel 2, external objects may accidentally come into contact with the filter screen 3, or the filter screen 3 may be subjected to impacts or scratches during installation and maintenance. The guide 6 is located around the outer periphery of the mounting groove 201 extending from the bottom of the filter screen 3, acting as a physical barrier. It can block direct impacts and scratches from the outside, protect the integrity of the filter screen 3, and ensure that its filtration function is not impaired.

[0070] The connection between the connector 601 at the top opening of the guide 6 and the positioning element 202 at the bottom of the discharge channel 2 also contributes to its protective function. This connection method ensures that the guide 6 can be securely positioned around the filter 3 after installation, providing continuous protection.

[0071] Based on the detailed working principle described above, the self-cleaning air filter can efficiently filter air, while also allowing users to easily clean and maintain the filter screen 3. Furthermore, the guide component 6 optimizes the working environment and protects the filter screen 3.

[0072] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A self-cleaning air filter, characterized by, The utility model relates to a self-cleaning filter body (1) is provided with a plurality of filter units (101), the discharge channel (2) is installed on the self-cleaning filter body (1), wherein the both sides of the discharge channel (2) are provided with the installation groove (201) respectively, the filter screen (3) is arranged in the bottom of the installation groove (201), the filter screen (3) is connected with the installation groove (201) through the detachable structure, the detachable structure includes: The utility model relates to a self-cleaning filter body (1) is provided with a plurality of filter units (101), the discharge channel (2) is installed on the self-cleaning filter body (1), wherein the both sides of the discharge channel (2) are provided with the installation groove (201) respectively, the filter screen (3) is arranged in the bottom of the installation groove (201), the filter screen (3) is connected with the installation groove (201) through the detachable structure, the detachable structure includes: Fixed outer frame (301) is installed in the outer periphery of filter screen (3), Positioning pull plate (302) is connected to both sides of fixed outer frame (301), The installation structure (4) is correspondingly arranged inside the installation groove (201), and the positioning pull plate (302) can be assembled inside the installation structure (4). The installation structure (4) is composed of a lower mounting frame (401), an upper mounting frame (402) and a plate body with a positioning slot (4022), the lower mounting frame (401) is located below the upper mounting frame (402), the positioning pull plate (302) can be inserted along the opening of the upper mounting frame (402) to assemble the filter screen (3) and the fixed outer frame (301) inside the lower mounting frame (401). The upper part of the inner wall of the positioning pull plate (302) is provided with an inner groove (3022).

2. A self-cleaning air filter according to claim 1, wherein: The upper part of the installation groove (201) is provided with a sealing cover (5), and the sealing cover (5) is arranged above the positioning pull plate (302).

3. A self-cleaning air filter according to claim 2, wherein: The top rear end of the sealing cover (5) is connected with a handle (501).

4. A self-cleaning air filter according to claim 1, wherein: The installation structure (4) and the inner wall shape of the installation groove (201) are matched, and a fixed connection is formed between the two.

5. A self-cleaning air filter according to claim 4, wherein: The bottom of the filter screen (3) extends to the outside of the installation groove (201), and a guide (6) is arranged on the outer periphery of the extension end of the installation groove (201), and the guide (6) is used for guiding.

6. A self-cleaning air filter according to claim 1, wherein: The guide (6) is in an open state.

7. A self-cleaning air filter according to claim 6, wherein: The opening of the top of the guide (6) is connected with a connecting port (601), the connecting port (601) is attached to the bottom of the discharge channel (2), the bottom of the discharge channel (2) is connected with a positioning piece (202) on both sides, and the connecting port (601) can be clamped in the inside of the positioning piece (202).

8. A self-cleaning air filter according to claim 7, wherein: The positioning piece (202) is designed in an L shape and has elasticity.

9. A self-cleaning air filter according to claim 7, wherein: ​ 10. A self-cleaning air filter according to claim 9, wherein: ​

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