Air purifying device with multi-layer filtering function

Abstract

The invention relates to the technical field of air purification equipment, in particular to an air purification device with a multi-layer filtering function, which comprises a purification box internally provided with an air duct; the air inlet housing is arranged on the front side of the purification box, a pretreatment layer, an efficient filtering layer and an activated carbon adsorption layer are sequentially arranged on one side of the air inlet housing, and limiting parts are arranged at the bottoms of the pretreatment layer, the efficient filtering layer and the activated carbon adsorption layer; the air purification device comprises a purification box, a plurality of layers of filter assemblies are arranged in the purification box, a plurality of limiting parts are arranged at the two ends of the purification box, the plurality of layers of filter assemblies are arranged in the purification box, an unfastening rack is fixed to the inner wall of the purification box, locking parts are arranged at the two ends of each limiting part, and a long rod is fixed to the bottom of each limiting part. Furthermore, when the pretreatment layer, the efficient filtering layer and the activated carbon adsorption layer are maintained, workers do not need to frequently use tools for operation, and the installation efficiency of the pretreatment layer, the efficient filtering layer and the activated carbon adsorption layer is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification equipment, in particular to an air purification device with multi-layer filtering function. Background Art

[0002] With the rapid development of industrialization and urbanization, air pollution is becoming increasingly serious. Airborne pollutants such as particulate matter, harmful gases, and microorganisms pose a serious threat to human health and the ecological environment. Indoor environments, harmful gases such as formaldehyde, benzene, and TVOC, as well as pollutants such as dust, bacteria, and viruses, are also produced due to factors such as decoration materials, furniture, and human activities.

[0003] like Figure 1 As shown, the interior of the existing air purification device is provided with a pretreatment layer, a high-efficiency filter layer and an activated carbon adsorption layer in sequence from the air inlet to the air outlet, wherein the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer are all fixed to the interior of the device by screws. However, in order to ensure the filtering effect, the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer need to be replaced regularly. Since the existing pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer are fixed to the interior of the purification box by screws, during maintenance, the staff needs to remove the multiple screws of the air inlet cover, and then unscrew the multiple screws fixing the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer before they can be removed from the interior of the equipment. During this process, the staff needs to frequently use tools to operate, resulting in complicated procedures for positioning and disassembling the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer, which is time-consuming and labor-intensive. Summary of the Invention

[0004] The object of the present invention is to provide an air purification device with multi-layer filtering function to solve the problem of low efficiency in positioning and maintaining the pretreatment layer, high-efficiency filter layer and activated carbon adsorption layer proposed in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an air purification device with a multi-layer filtering function, comprising a purification box with an air duct inside; and further comprising: an air inlet cover arranged on the front side of the purification box, a pretreatment layer, a high-efficiency filter layer and an activated carbon adsorption layer being provided in sequence on one side of the air inlet cover, the bottoms of the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer being provided with a limiting portion, and; a debonding rack, the debonding rack being fixed to the inner wall of the purification box, locking portions being provided at both ends of the limiting portion, and a long rod being fixed to the bottom of the limiting portion, one end of the long rod being fixed to the inner side of the air inlet cover.

[0006] Preferably, the limiting portion includes a limiting shell with a positioning groove on the top, and the bottoms of the pretreatment layer, the high-efficiency filtration layer and the activated carbon adsorption layer are all arranged in the positioning groove on the limiting shell, and the two ends of the bottoms of the pretreatment layer, the high-efficiency filtration layer and the activated carbon adsorption layer are fixed by the locking portion and the limiting shell.

[0007] Preferably, the locking part includes a threaded barrel rotatably connected to the outer end of the limiting shell, a locking column is threadedly connected to the inner thread of the threaded barrel, locking holes adapted to the locking column are provided on both sides of the pretreatment layer, the high-efficiency filtration layer and the activated carbon adsorption layer, the locking column slides through the interior of the limiting shell, and a debonding gear is fixedly sleeved on the outer side of the threaded barrel.

[0008] Preferably, a rotation limiting strip is fixed at the bottom of the locking hole, and a groove adapted to the rotation limiting strip is formed at one end of the locking column away from the threaded barrel.

[0009] Preferably, the long rod is fixed to the bottom of the limiting shell, teeth are evenly distributed on the bottom of the long rod, and a driving gear meshing with the teeth is provided on the bottom of the long rod.

[0010] Preferably, two driving gears are symmetrically fixed, a rotating shaft is fixedly connected between the two driving gears, and the rotating shaft is rotatably connected to the bottom of the purification box.

[0011] Preferably, one end of the rotating shaft extends to the outside of the purification box and is fixedly connected to a rotating block.

[0012] Preferably, a sealing opening is provided on the front side of the purification box, a sealing sleeve is provided on the outer side of the air inlet cover, and the air inlet cover is tightly connected to the sealing opening through the sealing sleeve.

[0013] Preferably, a magnetic strip is fixed at the bottom of the positioning slot, and magnets that attract the magnetic strip are provided at the bottom of the pretreatment layer, the high-efficiency filtration layer and the activated carbon adsorption layer.

[0014] Preferably, a fixing block is fixed to the outer wall of the purification box, a limiting screw is threadedly connected to the fixing block, and a screw hole adapted to the limiting screw is provided on the outer side of the rotating shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention optimizes the existing air purification device and designs a structure in the existing purification box to realize the linkage between the air inlet and the multi-layer filter assembly. When the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer need to be maintained, the air inlet is automatically moved away and the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer on the limit part are also automatically moved from the inside of the purification box to a position where they can be taken out from the outside of the purification box. The pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer can be automatically disassembled after being moved out. Therefore, when performing maintenance on the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer, the staff do not need to frequently use tools to operate, thereby improving the efficiency of installing the pretreatment layer, the high-efficiency filter layer and the activated carbon adsorption layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded diagram of the overall structure of an existing air purification device; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 Schematic diagram of the structure of the limiting part of the present invention; Figure 4 This is a schematic structural diagram of the locking portion of the present invention; Figure 5 This is a partial cross-sectional schematic diagram of the internal structure of the limiting shell of the present invention; Figure 6 Schematic diagram of the structure of the pretreatment layer, high-efficiency filtration layer and activated carbon adsorption layer of the present invention; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 Schematic diagram of the bottom structure of the limiting part of the present invention; Figure 9 Schematic diagram of the distribution of magnetic strips on the limiting shell of the present invention; Figure 10 Schematic diagram of the magnet distribution on the pretreatment layer, high-efficiency filtration layer and activated carbon adsorption layer of the present invention; Figure 11 This is a schematic diagram of the installation of the limit screw on the rotating shaft of the present invention; Figure 12 This is a schematic diagram of the air inlet cover structure of the present invention.

[0017] In the figure: 1. Purification box; 2. Air inlet cover; 3. Pretreatment layer; 4. High-efficiency filter layer; 5. Activated carbon adsorption layer; 6. Limiting part; 7. Unfastening rack; 8. Locking part; 9. Long rod; 10. Limiting shell; 11. Positioning groove; 12. Threaded barrel; 13. Locking column; 14. Locking hole; 15. Unfastening gear; 16. Rotation limit strip; 17. Groove; 18. Teeth; 19. Driving gear; 20. Rotating shaft; 21. Rotating block; 22. Sealing port; 23. Sealing sleeve; 24. Magnetic strip; 25. Magnet; 26. Fixing block; 27. Limiting screw; 28. Screw hole. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 2 and Figure 3 , an air purification device with a multi-layer filtering function shown in the figure includes a purification box 1 with an air duct inside; it also includes: an air inlet cover 2 arranged on the front side of the purification box 1, one side of the air inlet cover 2 is sequentially provided with a pretreatment layer 3, a high-efficiency filter layer 4 and an activated carbon adsorption layer 5, the bottoms of the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 are all provided with a limiting portion 6, and; a debonding rack 7, the debonding rack 7 is fixed to the inner wall of the purification box 1, both ends of the limiting portion 6 are provided with a locking portion 8, and a long rod 9 is fixed to the bottom of the limiting portion 6, one end of the long rod 9 is fixed to the inner side of the air inlet cover 2; In this solution, the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 with multi-layer filtering function are connected to the air inlet cover 2 as a whole, so that when the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 need to be removed for maintenance or moved in for installation, they can be kept in sync, and the designed release rack 7 and locking part 8 can produce a locking or unlocking effect during the movement of the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5, so that when performing maintenance on the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5, the staff does not need to frequently use tools to operate, thereby improving the installation efficiency of the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5.

[0020] It should be noted that the pre-treatment layer 3 is mainly used to filter large particulate pollutants in the air, such as dust, hair, and fibers. This layer uses a washable nylon mesh or metal filter with a mesh diameter of 5-10 microns. Its function is to reduce the burden on the subsequent filter layer and extend its service life. High-efficiency filtration layer 4 uses a HEPA filter with a filtration efficiency of over 99.97% for particles with a diameter of 0.3 microns or larger. It can effectively filter out PM2.5, smoke, pollen and other fine particles. The HEPA filter adopts a folding design, which increases the filtration area, improves the filtration efficiency and dust holding capacity; The activated carbon adsorption layer 5 uses high iodine value columnar activated carbon, which has a rich pore structure and a large specific surface area, and can effectively adsorb harmful gases such as formaldehyde, benzene, TVOC, and odor in the air; in order to improve the adsorption effect, a small amount of catalyst, such as titanium dioxide, can be added to the activated carbon layer.

[0021] For further information, see Figure 3 The limiting portion 6 includes a limiting shell 10 with a positioning groove 11 on the top. The bottoms of the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 are all arranged in the positioning groove 11 on the limiting shell 10. The two ends of the bottom of the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 are fixed by the locking portion 8 and the limiting shell 10.

[0022] Specifically, during installation, the bottoms of the pretreatment layer 3, the high-efficiency filtration layer 4 and the activated carbon adsorption layer 5 are placed in the positioning grooves 11 of the limiting shell 10 respectively, so as to preliminarily position the pretreatment layer 3, the high-efficiency filtration layer 4 and the activated carbon adsorption layer 5. After positioning, the three limiting shells 10 are moved into the purification box 1. At this time, the pretreatment layer 3, the high-efficiency filtration layer 4 and the activated carbon adsorption layer 5 are fixed one by one under the action of the locking part 8.

[0023] It should also be noted that, see Figure 9 and Figure 10 A magnetic strip 24 is fixed at the bottom of the positioning groove 11, and magnets 25 that attract each other with the magnetic strip 24 are provided at the bottom of the pretreatment layer 3, the high-efficiency filtration layer 4 and the activated carbon adsorption layer 5. This design enables each layer to be firmly fixed in the positioning groove 11 through magnetic force, ensuring that it will not be displaced during use, thereby improving the stability and filtration effect of the entire system.

[0024] For further information, see Figure 4 、 Figure 5 as well as Figure 6 and Figure 7The locking portion 8 includes a threaded barrel 12 rotatably connected to the outer end of the limiting shell 10, and a locking column 13 is connected to the inner thread of the threaded barrel 12. Locking holes 14 adapted to the locking column 13 are opened on both sides of the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5. The locking column 13 slides through the interior of the limiting shell 10, and a debonding gear 15 is fixedly sleeved on the outer side of the threaded barrel 12; A rotation-limiting bar 16 is fixed at the bottom of the locking hole 14 , and a groove 17 adapted to the rotation-limiting bar 16 is formed at one end of the locking column 13 away from the threaded barrel 12 ; In this solution, the locking principle of the locking portion 8 is as follows: after the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 are placed, the limiting shell 10 is moved into the interior of the purification box 1, and then the debonding gear 15 is engaged with the debonding rack 7, driving the debonding gear 15 to rotate, thereby driving the threaded barrel 12 to rotate, and the threaded barrel 12 drives the locking column 13 to move, so that the locking column 13 enters the locking hole 14, thereby automatically fixing the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 after entering the purification box 1; It should also be noted that, see Figure 2 and Figure 12 A sealing opening 22 is provided on the front side of the purification box 1, and a sealing sleeve 23 is provided on the outside of the air inlet cover 2, and the air inlet cover 2 is tightly connected to the sealing opening 22 through the sealing sleeve 23. The setting of the sealing sleeve 23 can ensure the tightness of the connection between the air inlet cover 2 and the purification box 1, and avoid air leakage during the purification process, which affects the purification effect. At the same time, the sealing sleeve 23 can be made of elastic material to facilitate installation and disassembly, thereby improving the convenience of operation.

[0025] In this solution, the operation process for replacing the pretreatment layer 3, the high-efficiency filtration layer 4 and the activated carbon adsorption layer 5 includes the following steps: In the first step, a person pulls the air inlet cover 2 outwards through the air inlet on the air inlet cover 2 until the air inlet cover 2 is removed from the sealing opening 22; The second step is to continuously move the air inlet housing 2 outward, thereby driving the pretreatment layer 3, the high-efficiency filter layer 4, and the activated carbon adsorption layer 5 to move out of the purification box 1; In the third step, during the removal of the pretreatment layer 3, the high-efficiency filter layer 4, and the activated carbon adsorption layer 5, the locking portion 8 will work in conjunction with the release rack 7, thereby releasing the pretreatment layer 3, the high-efficiency filter layer 4, and the activated carbon adsorption layer 5 on the limiting portion 6 in turn; In the fourth step, the personnel remove the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 from the limiting shell 10 after the fixing effect is released, and then place the new pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 in the corresponding positioning grooves 11; In the fifth step, push the air inlet cover 2 into the purification box 1 again, and the unfastening rack 7 will produce a transmission effect with the locking part 8 again. The corresponding locking part 8 will fix the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 again until the air inlet cover 2 completely covers the sealing port 22 to complete the replacement operation.

[0026] Example 2: Please refer to Figure 8 This embodiment further explains the first embodiment, and the difference lies in that the replacement steps of the pretreatment layer 3, the high-efficiency filtration layer 4 and the activated carbon adsorption layer 5 are optimized.

[0027] Specifically, the long rod 9 is fixed to the bottom of the limiting housing 10, and teeth 18 are evenly distributed on the bottom of the long rod 9. A driving gear 19 meshing with the teeth 18 is provided at the bottom of the long rod 9; two driving gears 19 are symmetrically fixed, and a rotating shaft 20 is fixedly connected between the two driving gears 19, and the rotating shaft 20 is rotatably connected to the bottom of the purification box 1; One end of the rotating shaft 20 extends to the outside of the purification box 1 and is fixedly connected to a rotating block 21 .

[0028] In this solution, during operation, the rotating block 21 can be manually rotated, and the rotating block 21 drives the rotating shaft 20 to rotate, and the rotating shaft 20 drives the driving gear 19 to rotate, and the driving gear 19 drives the teeth 18 to move, thereby driving the long rod 9 to move. Since the long rod 9 and the three groups of limiting shells 10 are fixed, the long rod 9 will drive the pretreatment layer 3, the high-efficiency filtration layer 4 and the activated carbon adsorption layer 5 on the limiting shell 10 to move synchronously, which is convenient for personnel to perform manual operation and saves more effort.

[0029] Example 3: Please refer to Figure 8 and Figure 11 This embodiment further explains the second embodiment, and the difference lies in that the replacement steps of the pretreatment layer 3, the high-efficiency filtration layer 4 and the activated carbon adsorption layer 5 are optimized.

[0030] Specifically, two driving gears 19 are symmetrically fixed, and a rotating shaft 20 is fixedly connected between the two driving gears 19. The rotating shaft 20 is rotatably connected to the bottom of the purification box 1; a fixing block 26 is fixed to the outer wall of the purification box 1, and a limit screw 27 is threadedly connected to the fixing block 26. A screw hole 28 adapted to the limit screw 27 is opened on the outer side of the rotating shaft 20; In this solution, the rotating shaft 20 can be limited by the cooperation of the limit screw 27 and the screw hole 28 to prevent the rotating shaft 20 from rotating on its own, thereby avoiding the displacement of the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 when they do not need to be moved, thereby improving the stability of the air purification device; when the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 need to be replaced, it is only necessary to loosen the limit screw 27 and then manually rotate the turn block 21 to drive the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 to move. The operation is simple and convenient. When the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5 are moved to the appropriate position, the limit screw 27 is tightened again to fix the rotating shaft 20, thereby completing the fixation of the pretreatment layer 3, the high-efficiency filter layer 4 and the activated carbon adsorption layer 5, thereby improving the convenience of use of the air purification device.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An air purification device with multi-layer filtering function, comprising: A purification box (1) having an air duct therein; It is characterized by further comprising: An air inlet housing (2) is provided on the front side of the purification box (1), a pretreatment layer (3), a high-efficiency filter layer (4) and an activated carbon adsorption layer (5) are sequentially provided on one side of the air inlet housing (2), and a limiting portion (6) is provided at the bottom of the pretreatment layer (3), the high-efficiency filter layer (4) and the activated carbon adsorption layer (5); and; A detent rack (7) is fixed to the inner wall of the purification box (1), locking parts (8) are provided at both ends of the limiting part (6), and a long rod (9) is fixed to the bottom of the limiting part (6), and one end of the long rod (9) is fixed to the inner side of the air inlet cover (2).

2. The air purification device with multi-layer filtering function according to claim 1, characterized in that: The limiting portion (6) includes a limiting shell (10) having a positioning groove (11) on the top, and the bottoms of the pretreatment layer (3), the high-efficiency filtration layer (4) and the activated carbon adsorption layer (5) are all arranged in the positioning groove (11) on the limiting shell (10), and both ends of the bottoms of the pretreatment layer (3), the high-efficiency filtration layer (4) and the activated carbon adsorption layer (5) are fixed by the locking portion (8) and the limiting shell (10).

3. The air purification device with multi-layer filtering function according to claim 2, characterized in that: The locking portion (8) includes a threaded barrel (12) rotatably connected to the outer end of the limiting shell (10), the threaded barrel (12) is internally threaded with a locking column (13), and locking holes (14) adapted to the locking column (13) are provided on both sides of the pretreatment layer (3), the high-efficiency filtration layer (4) and the activated carbon adsorption layer (5). The locking column (13) slides through the interior of the limiting shell (10), and a debonding gear (15) is fixedly sleeved on the outer side of the threaded barrel (12).

4. The air purification device with multi-layer filtering function according to claim 3, characterized in that: A rotation limiting strip (16) is fixed at the bottom of the locking hole (14), and a groove (17) adapted to the rotation limiting strip (16) is formed at one end of the locking column (13) away from the threaded barrel (12).

5. The air purification device with multi-layer filtering function according to claim 2, characterized in that: The long rod (9) is fixed to the bottom of the limiting shell (10), and teeth (18) are evenly distributed on the bottom of the long rod (9). The bottom of the long rod (9) is provided with a driving gear (19) that meshes with the teeth (18).

6. The air purification device with multi-layer filtering function according to claim 5, characterized in that: Two driving gears (19) are symmetrically fixed, and a rotating shaft (20) is fixedly connected between the two driving gears (19). The rotating shaft (20) is rotatably connected to the bottom of the purification box (1).

7. The air purification device with multi-layer filtering function according to claim 6, characterized in that: One end of the rotating shaft (20) extends to the outside of the purification box (1) and is fixedly connected to a rotating block (21).

8. The air purification device with multi-layer filtering function according to claim 1, characterized in that: A sealing opening (22) is provided on the front side of the purification box (1), a sealing sleeve (23) is provided on the outside of the air inlet housing (2), and the air inlet housing (2) is tightly connected to the sealing opening (22) via the sealing sleeve (23).

9. The air purification device with multi-layer filtering function according to claim 2, characterized in that: A magnetic strip (24) is fixed at the bottom of the positioning slot (11), and magnets (25) that attract the magnetic strip (24) are provided at the bottoms of the pretreatment layer (3), the high-efficiency filtration layer (4), and the activated carbon adsorption layer (5).

10. The air purification device with multi-layer filtering function according to claim 6, characterized in that: A fixing block (26) is fixed to the outer wall of the purification box (1), a limit screw (27) is threadedly connected to the fixing block (26), and a screw hole (28) adapted to the limit screw (27) is provided on the outer side of the rotating shaft (20).

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