Return air filtering device

Abstract

The utility model relates to the technical field of air filtering, and discloses a return air filtering device which comprises a main body, two first filtering shells are installed in the main body, and two second filtering shells are installed at the positions, located at the rear ends of the first filtering shells, in the main body. According to the return air filtering device, a first limiting plate is loosened and is far away from a protection plate by screwing a first bolt, then a second bolt is screwed, a connecting plate is taken down from the surface of the second bolt, and then a side plate and the protection plate can be detached, so that a worker can conveniently take out a first filtering shell and a second filtering shell; the dismounting mechanism is arranged on one side of the main body, so that a filtering material, a partition plate or other parts in the return air filtering device are easier to approach, the maintenance and replacement process is simplified, a worker can operate only by opening the side plate on the side face without moving or dismounting the whole device, and the working efficiency of the worker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtration, in particular to a return air filtration device. Background Art

[0002] The return air filtration device mainly stems from the continuous improvement of requirements for air quality and cleanliness. With the increasing demand for clean environments in fields such as industry, medical treatment, and scientific research, the return air filtration device, as an important means to ensure air quality, has been widely used and developed.

[0003] During the installation process of traditional return air filtration devices, fixed installation is usually adopted. As a result, when replacing or cleaning the filter, the entire device needs to be disassembled or a large amount of additional work is required. This not only takes time and effort but may also damage the sealing of the device, affecting subsequent use effects, thereby increasing the difficulty and time cost of maintenance. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that in the prior art, fixed installation is adopted during the installation process of the return air filtration device, resulting in cumbersome operations when replacing or cleaning the filter. For this reason, we propose a return air filtration device.

[0005] To achieve the above object, the present application adopts the following technical solution: A return air filtration device, including a main body. Two first filter shells are installed inside the main body. Two second filter shells are installed at the rear end of the first filter shells inside the main body. A protective plate abuts against one side of the main body. A side plate abuts against one side of the protective plate. At both ends of one side of the main body, first bolts are threadedly connected. A first limiting plate is slidably connected to the surface of the first bolt. A first nut is threadedly connected to the other end of the first limiting plate. One side of the first limiting plate abuts against the other side of the side plate.

[0006] Preferably, at one end of both sides of the main body, second limiting plates abut. The second limiting plates and the inside of the main body are threadedly connected with second bolts. Connecting plates are fixed on both sides of the side plate. The inside of the connecting plate is slidably connected to the surface of the second bolt. A second nut is threadedly connected to the rear end of the second bolt located in the connecting plate.

[0007] Preferably, a plurality of partition plates installed inside the first filter shell are arranged horizontally, and a plurality of partition plates installed inside the second filter shell are arranged vertically.

[0008] Preferably, the material of the first limiting plate is a metal elastic material.

[0009] Preferably, a plurality of flow equalizing plates are installed inside the first filter shell, and one end of the partition separated by the flow equalizing plate is fixed to the opposite surface of the partition plate.

[0010] Preferably, guiding grooves are formed on opposite faces of the main body, and two sides of the second filter housing are slidably connected to inner walls of the guiding grooves.

[0011] Technical effects and advantages of the present utility model:

[0012] In the present utility model, by turning the first bolt, the first limiting plate is loosened and moves away from the protection plate, and then by turning the second bolt, the connecting plate is removed from the surface of the second bolt. At this time, the side plate and the protection plate can be disassembled, facilitating the staff to take out the first filter housing and the second filter housing. Through the above structure, a disassembly mechanism is provided on one side of the main body, making the filter material, partition or other components in the return air filtering device easier to access, thus simplifying the maintenance and replacement process. The staff does not need to move or disassemble the whole device, and only needs to open the side plate on the side to perform the operation, improving the working efficiency of the staff. Description of the drawings

[0013] Figure 1 is the front view structural schematic diagram of the present utility model;

[0014] Figure 2 is the disassembled structural schematic diagram of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the disassembly mechanism of the present utility model;

[0016] Figure 4 is the structural schematic diagram of the first filter housing of the present utility model;

[0017] Figure 5 is the partial structural schematic diagram of the present utility model.

[0018] Description of reference numerals:

[0019] 1, main body; 2, first filter housing; 3, second filter housing; 4, protection plate; 5, side plate; 6, first bolt; 7, first limiting plate; 8, first nut; 9, second limiting plate; 10, second bolt; 11, connecting plate; 12, uniform flow plate; 13, guiding groove; 14, second nut. Specific embodiments

[0020] Now, the present utility model will be further described in detail with reference to the drawings and preferred embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0021] Refer to Figures 1 - 5As shown in the figure, the present utility model provides a technical solution: an air return filtering device, including a main body 1. Two first filter housings 2 are installed inside the main body 1. Two second filter housings 3 are installed at the rear end of the first filter housings 2 inside the main body 1. A protection plate 4 abuts against one side of the main body 1. A side plate 5 abuts against one side of the protection plate 4. Two first bolts 6 are threadedly connected to both ends of one side of the main body 1. A first limiting plate 7 is slidably connected to the surface of the first bolt 6. The other end of the first limiting plate 7 is threadedly connected to a first nut 8. One side of the first limiting plate 7 abuts against the other side of the side plate 5. One end of both sides of the main body 1 abuts against a second limiting plate 9. A second bolt 10 is threadedly connected inside the second limiting plate 9 and the main body 1. Connecting plates 11 are fixed to both sides of the side plate 5. The inside of the connecting plate 11 is slidably connected to the surface of the second bolt 10. A second nut 14 is threadedly connected to the second bolt 10 at the rear end of the connecting plate 11. By turning the first bolt 6, the first limiting plate 7 is loosened and moves away from the protection plate 4. Then, by turning the second bolt 10, the connecting plate 11 is removed from the surface of the second bolt 10. At this time, the side plate 5 and the protection plate 4 can be disassembled, facilitating the staff to take out the first filter housing 2 and the second filter housing 3. Through the above structure, a disassembly mechanism is provided on one side of the main body 1, making the filter materials, partitions or other components in the air return filtering device easier to access, thus simplifying the maintenance and replacement process. The staff does not need to move or disassemble the entire device. Just by opening the side plate 5 on the side, the operation can be carried out, improving the work efficiency of the staff.

[0022] Referring to Figures 1 - 4 As shown in the figure, in this implementation scheme: the multiple partitions installed inside the first filter housing 2 are arranged horizontally, and the multiple partitions installed inside the second filter housing 3 are arranged vertically. By combining the horizontal partitions in the first filter housing 2 and the vertical partitions in the second filter housing 3, it is equivalent to adding multiple layers of filtering barriers to the air return filtering device. Such a design can more effectively capture and intercept particulate matter in the air, including large particles, small particles and micro particles. The horizontal partitions disperse the air flow in the horizontal direction, increasing the contact area and time between the air and the filter material, which helps to more thoroughly filter pollutants in the air.

[0023] Referring to Figure 2 and Figure 3 As shown in the figure, in this implementation scheme: the material of the first limiting plate 7 is a metal elastic material. By using a metal elastic material for the first limiting plate 7, the side plate 5 can be better fixed, and at the same time, the contact area for fixing the side plate 5 is increased, enhancing the fixing effect.

[0024] Referring to Figure 2As shown in the figure, in this embodiment: A plurality of flow equalizing plates 12 are installed inside the first filter housing 2. One end of the partition separated by the flow equalizing plate 12 is fixed to the opposite surface of the partition plate. By providing the flow equalizing plates 12, the horizontal partition plates inside the first filter housing 2 can be evenly arranged, enabling the air flow to pass through the filter material more evenly and ensuring consistent filtering effects in each area.

[0025] Referring to Figure 5 As shown in the figure, in this embodiment: Guide grooves 13 are formed on the opposite surfaces of the main body 1. The inner walls of the guide grooves 13 are slidably connected to both sides of the second filter housing 3. By providing the guide grooves 13, the position of the second filter housing 3 can be restricted and it can play a guiding role during installation or maintenance.

[0026] Working principle: The user loosens the first limit plate 7 and moves it away from the protective plate 4 by turning the first bolt 6. Then, the user turns the second bolt 10 and removes the connecting plate 11 from the surface of the second bolt 10. At this time, the side plate 5 and the protective plate 4 can be disassembled, facilitating the staff to take out the first filter housing 2 and the second filter housing 3. Through the above structure, a disassembly mechanism is provided on one side of the main body 1, making the filter material, partition plate or other components in the return air filtering device easier to access, thus simplifying the maintenance and replacement process. The staff does not need to move or disassemble the entire device. They only need to open the side plate 5 on the side to perform operations, improving the work efficiency of the staff. By combining the horizontal partition plates inside the first filter housing 2 and the vertical partition plates inside the second filter housing 3, it is equivalent to adding multiple layers of filtering barriers to the return air filtering device. Such a design can more effectively capture and intercept particulate matter in the air, including large particles, small particles and tiny particles. The horizontal partition plates disperse the air flow in the horizontal direction, increasing the contact area and time between the air and the filter material, which helps to filter pollutants in the air more thoroughly. By using a metal elastic material for the first limit plate 7, the side plate 5 can be better fixed, while increasing the contact area for fixing the side plate 5 and enhancing the fixing effect. By providing the flow equalizing plates 12, the horizontal partition plates inside the first filter housing 2 can be evenly arranged, enabling the air flow to pass through the filter material more evenly and ensuring consistent filtering effects in each area. By providing the guide grooves 13, the position of the second filter housing 3 can be restricted and it can play a guiding role during installation or maintenance.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Return air filtration device, comprising a main body (1), characterized in that: Inside the main body (1), two first filter housings (2) are installed. At the rear end of the first filter housing (2) inside the main body (1), two second filter housings (3) are installed. One side of the main body (1) abuts against a protection plate (4), and one side of the protection plate (4) abuts against a side plate (5). At both ends of one side of the main body (1), first bolts (6) are threadedly connected. The surface of the first bolt (6) is slidably connected with a first limiting plate (7), and the other end of the first limiting plate (7) is threadedly connected with a first nut (8). One side of the first limiting plate (7) abuts against the other side of the side plate (5).

2. The return air filtering device according to claim 1, characterized in that: At one end of both sides of the main body (1), second limiting plates (9) are abutted. The second limiting plates (9) and the inside of the main body (1) are threadedly connected with second bolts (10). Connecting plates (11) are fixed on both sides of the side plate (5). The inside of the connecting plate (11) is slidably connected with the surface of the second bolt (10). At the rear end of the second bolt (10) located in the connecting plate (11), a second nut (14) is threadedly connected.

3. The return air filtering device according to claim 1, characterized in that: The multiple partition plates installed inside the first filter housing (2) are arranged horizontally, and the multiple partition plates installed inside the second filter housing (3) are arranged vertically.

4. The return air filtering device according to claim 1, wherein: The material of the first limiting plate (7) is a metal elastic material.

5. The return air filtering device according to claim 1, characterized in that: Inside the first filter housing (2), a number of flow equalizing plates (12) are installed. One end of the partition separated by the flow equalizing plate (12) is fixed to the opposite surface of the partition plate.

6. The return air filtering device according to claim 1, wherein: On the opposite surfaces of the main body (1), guide grooves (13) are provided. The inner walls of the guide grooves (13) are slidably connected with both sides of the second filter housing (3).

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