An air purification device for removing formaldehyde

Abstract

This utility model discloses an air purification device for removing formaldehyde, specifically relating to the field of air purification technology. It includes a positioning column with multiple placement chambers on its inner side. Two fixing brackets are fixedly connected to the inner side of each placement chamber. A multi-stage purification mechanism is arranged on the outer side of the positioning column. The multi-stage purification mechanism includes multiple air inlet pipes, one end of which is fixedly connected to the top of the positioning column. A connecting plate is fixedly connected to one end of the air inlet pipe, and a filter screen is fixedly connected to the top of the connecting plate. Two connecting pipes are slidably connected to the inner side of each placement chamber. This utility model employs a design with multiple individually detachable and replaceable fixing pipes, allowing for partial replacement when the activated carbon powder is saturated, improving utilization and continuity. Combined with a spiral blade structure, it extends the contact time between air and activated carbon, enhancing the filtration effect. Simultaneously, an adjustment mechanism driven by an electric push rod enables the positioning column to rise and fall smoothly, allowing the air inlet to precisely approach the pollution source and directly intercept undispersed formaldehyde, effectively shortening the purification path.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and more specifically, to an air purification device for removing formaldehyde. Background Technology

[0002] Formaldehyde is a colorless gas with a pungent odor. It is commonly used in industrial production as a preservative, disinfectant, and adhesive. Formaldehyde is also found in some home decoration materials, furniture, and cosmetics. Long-term exposure to high concentrations of formaldehyde may have certain health effects, such as irritation to the eyes, respiratory tract, and skin, and may even lead to chronic respiratory diseases. Formaldehyde treatment devices on the market include activated carbon filters, water catalyst devices, water decomposition devices, and plant purifiers.

[0003] Existing formaldehyde removal devices use activated carbon for adsorption, utilizing the porous structure of the activated carbon surface to adsorb formaldehyde in the air. However, due to the limited contact area between the air and the activated carbon surface, the adsorption of formaldehyde is a very long process. Moreover, activated carbon adsorption of formaldehyde will reach a saturation limit, which will result in unsatisfactory adsorption effect.

[0004] A search revealed a formaldehyde removal air purification device disclosed in Chinese Patent No. CN222560204U. This utility model uses a motor to drive a fan to draw air from the room into the device, increasing airflow and achieving a higher rate of formaldehyde adsorption by activated carbon. A mist atomizer sprays formaldehyde removal agent into the inner side of the device to remove formaldehyde that the activated carbon could not completely adsorb. The fan at the top of the rotating shaft also discharges the atomized formaldehyde removal agent into the room air, purifying the formaldehyde.

[0005] However, in actual use, when the above-mentioned purification devices filter and purify the air with activated carbon, the contact area between the air and the activated carbon is not high. Even if the activated carbon is partially saturated, it still needs to be replaced as a whole, which leads to waste of resources and high maintenance costs, and reduces the purification efficiency of activated carbon for formaldehyde in the air. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an air purification device for removing formaldehyde, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An air purification device for removing formaldehyde includes a positioning column with multiple placement chambers on its inner side. Two fixing frames are fixedly connected to the inner side of each placement chamber. A multi-stage purification mechanism is arranged on the outer side of the positioning column. The multi-stage purification mechanism includes multiple air inlet pipes, one end of which is fixedly connected to the top of the positioning column. A connecting plate is fixedly connected to one end of the air inlet pipe, and a filter is fixedly connected to the top of the connecting plate. Two connecting pipes are slidably connected to the inner side of each placement chamber. A connecting cover is fixedly connected to one end of each connecting pipe, and a spring is fixedly connected to the top of the connecting cover. One end of the spring is fixedly connected to the inner side of the placement chamber. Multiple air outlet pipes are connected to the bottom of the positioning column. A connecting plate is fixedly connected to one end of each air outlet pipe, and a flexible tube is connected to the bottom of the connecting plate. An air pump is fixedly connected to the outer side of the flexible tube. Multiple fixing pipes are arranged inside the placement chamber, and the outer side of each fixing pipe is engaged with the inner side of the fixing frame. Gaskets are fixedly connected to the upper and lower sides of each fixing pipe. A spiral blade is fixedly connected to the inner side of each fixing pipe, and activated carbon powder is disposed inside the fixing pipe. An adjustment mechanism is provided at the bottom of the positioning column.

[0009] By adopting the above technical solution: the activated carbon powder inside multiple fixed tubes disperses and filters the air, while individual fixed tubes can be replaced. At the same time, the spiral blades inside the fixed tubes are used to spirally transport the air, so that the air flows spirally inside the activated carbon powder, allowing the air to fully contact and filter with the activated carbon powder.

[0010] As a further description of the above technical solution: the adjustment mechanism includes a fixed ring, the inner side of which is fixedly connected to the bottom of the positioning column, two electric push rods are fixedly connected to the bottom of the fixed ring, and multiple telescopic rods are fixedly connected to the lower surface of the fixed ring. A chassis is fixedly connected to the bottom of both the fixed ring and the telescopic rods, and multiple casters are fixedly connected to the bottom of the chassis.

[0011] By adopting the above technical solution, the fixed ring and positioning column are raised and lowered by two electric push rods, and the raising and lowering of the positioning column is guided by multiple telescopic rods, so that the filter screen at the top of the positioning column can be raised and lowered to a height close to the pollution source, shortening the air purification flow path.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. By setting up multiple purification mechanisms, compared with the existing technology, multiple fixed tubes are individually disassembled and replaced inside the positioning column. When the activated carbon powder inside the individual fixed tube is saturated, some fixed tubes can be replaced, so that the air purification device can be used continuously and the utilization rate can be improved. Furthermore, the spiral setting of the spiral blades increases the contact time between the air and the activated carbon powder, improves the filtration effect of the activated carbon powder on the air, and enhances the continuous use of the air purification device.

[0014] 2. By setting up an adjustment mechanism, compared with the existing technology, the positioning column is raised and lowered using electric push rods. The positioning column remains stable during the raising and lowering process through the guidance of multiple electric push rods. This allows the positioning column to bring the air inlet close to the surface of the pollution source, directly intercepting the undispersed formaldehyde and shortening the purification path. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the front structure of this utility model.

[0017] Figure 3 This is a partial schematic diagram of the connection between the positioning post and the air intake pipe of this utility model.

[0018] Figure 4 This is a partial schematic diagram of the connection between the fixed tube and the spiral blade of this utility model.

[0019] Figure 5 This is a partial schematic diagram of the connection between the fixing ring and the telescopic rod of this utility model.

[0020] Figure 6 This is a partial schematic diagram of the connection between the positioning column and the fixing frame of this utility model.

[0021] The attached diagram is labeled as follows: 1. Positioning post; 2. Placement cavity; 3. Fixing frame; 4. Air inlet pipe; 5. Connecting plate one; 6. Filter screen; 7. Connecting pipe; 8. Connecting cover; 9. Spring; 10. Air outlet pipe; 11. Connecting plate two; 12. Hose; 13. Air pump; 14. Fixing pipe; 15. Washer; 16. Spiral blade; 17. Activated carbon powder; 18. Fixing ring; 19. Telescopic rod; 20. Electric push rod; 21. Chassis; 22. Casters. Detailed Implementation

[0022] 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.

[0023] The embodiments disclosed in this application are as follows: Figure 1-6An air purification device for removing formaldehyde, as shown, includes a positioning column 1. Multiple placement chambers 2 are formed inside the positioning column 1. Two fixing brackets 3 are fixedly connected to the inside of each placement chamber 2. A multi-stage purification mechanism is provided on the outside of the positioning column 1. The multi-stage purification mechanism includes multiple air inlet pipes 4. One end of each air inlet pipe 4 is fixedly connected to the top of the positioning column 1, and a connecting plate 5 is fixedly connected to one end of each air inlet pipe 4. A filter 6 is fixedly connected to the top of the connecting plate 5. Two connecting pipes 7 are slidably connected inside the placement chambers 2. A connecting cover 8 is fixedly connected to one end of each connecting pipe 7. A spring 9 is fixedly connected to the top of the connecting cover 8, and one end of the spring 9 is fixedly connected to the inside of the placement chamber 2. Multiple air outlet pipes 10 are connected to the bottom of the positioning column 1. One end of each air outlet pipe 10 is fixedly connected to a connecting plate 2 11, and a flexible hose 12 is connected to the bottom of the connecting plate 2 11. The flexible hose 12 is fixedly connected to the outside of the connecting plate 12. An air pump 13 is fixedly connected to the placement chamber 2. Multiple fixed tubes 14 are arranged inside the placement chamber 2. The outer side of the fixed tube 14 is snapped into the inner side of the fixing frame 3. Gaskets 15 are fixedly connected to the upper and lower sides of the fixed tube 14. Spiral blades 16 are fixedly connected to the inner side of the fixed tube 14. Activated carbon powder 17 is arranged inside the fixed tube 14. An adjustment mechanism is set at the bottom of the positioning column 1. Air is allowed to pass through the connecting pipe 7 and the connecting cover 8 into the interior of the fixed tube 14 by the connecting plate 11 and the activated carbon powder 17 inside the fixed tube 14. The air is made to spirally flow inside the activated carbon powder 17 by the spiral blades 16 and the activated carbon powder 17 inside the fixed tube 14. The filtered air is then output through multiple air outlet pipes 10, the connecting plate 2 11 and the hose 12. Multiple fixed tubes 14 can be replaced individually to allow the air purification device to be used continuously and maintain the filtration effect.

[0024] Reference Figure 1 and Figure 5 As shown, the adjustment mechanism includes a fixed ring 18, the inner side of which is fixedly connected to the bottom of the positioning column 1. Two electric push rods 20 are fixedly connected to the bottom of the fixed ring 18, and multiple telescopic rods 19 are fixedly connected to the lower surface of the fixed ring 18. A chassis 21 is fixedly connected to the bottom of both the fixed ring 18 and the telescopic rods 19. Multiple casters 22 are fixedly connected to the bottom of the chassis 21. The two electric push rods 20 and the multiple telescopic rods 19 are used to push the connecting cover 8 and the positioning column 1, so that the positioning column 1 can drive the connecting plate 5 and the filter screen 6 to rise and fall to a suitable height, so that the connecting plate 5 is close to the surface of the pollution source, thereby accelerating the interception of undispersed formaldehyde.

[0025] The working principle of this utility model is as follows: When removing formaldehyde from the air, the positioning column 1 is first moved by multiple universal wheels 22 at the bottom. Then, two electric push rods 20 are activated to raise and lower the fixing ring 18 and the positioning column 1. Multiple telescopic rods 19 are used to guide the raising and lowering of the positioning column 1, keeping it stable. The filter screen 6 at the top of the positioning column 1 is raised and lowered to the appropriate position. Then, the air pump 13 is activated to draw air into the connecting plate 2 11 and the air outlet pipe 10 through the hose 12, allowing outside air to enter through multiple air inlet pipes 4 and connecting plate 1 5. The air then passes through multiple air outlet pipes 10, the top connecting pipe 7, the fixing pipe 14, and the bottom connecting pipe 7, allowing the air to be discharged from one end of the hose 12. The formaldehyde in the air is absorbed by the activated carbon powder 17 inside the fixing pipe 14, and the spiral arrangement of the spiral plate 16 allows the air to circulate within the fixed pipe. The internal spiral conveying of tube 14 allows air to fully contact the activated carbon powder 17. After the activated carbon powder 17 inside the multiple fixed tubes 14 becomes saturated with formaldehyde, the fixed tubes 14 can be pulled outward from the placement chamber 2, separating the upper and lower ends of the fixed tubes 14 from the inner side of the fixing brackets 3. The fixed tubes 14 are then replaced, and the new fixed tubes 14 are aligned with the two fixing brackets 3 inside the placement chamber 2 and inserted. The two washers 15 at the upper and lower ends of the fixed tubes 14 are then inserted into the two connecting covers 8 inside the placement chamber 2. The corresponding springs 9 push the connecting covers 8 and the connecting tubes 7, causing the inner wall of the connecting cover 8 to fit against the outer side of the washers 15. This allows both ends of the fixed tubes 14 to connect with the upper and lower connecting tubes 7, enabling the air to complete purification and circulation within the multiple connecting tubes 7, the fixed tubes 14, and the multiple air outlet tubes 10.

[0026] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An air purifying device for removing formaldehyde, comprising a positioning column (1), characterized in that: The positioning column (1) has multiple placement cavities (2) on its inner side, and two fixing frames (3) are fixedly connected to the inner side of the placement cavity (2). The positioning column (1) is provided with multiple purification mechanisms on its outer side. The multi-stage purification mechanism includes multiple air inlet pipes (4), one end of which is fixedly connected to the top of the positioning column (1), and one end of which is fixedly connected to a connecting plate (5). A filter screen (6) is fixedly connected to the top of the connecting plate (5). Two connecting pipes (7) are slidably connected to the inside of the placement cavity (2). One end of the connecting pipe (7) is fixedly connected to a connecting cover (8), and the top of the connecting cover (8) is fixedly connected to a spring (9). One end of the spring (9) is fixedly connected to the inside of the placement cavity (2). An adjustment mechanism is provided at the bottom of the positioning column (1).

2. The formaldehyde-removing air purification device according to claim 1, characterized in that: The bottom of the positioning column (1) is connected to multiple air outlet pipes (10), and one end of the air outlet pipe (10) is fixedly connected to a connecting plate two (11).

3. The formaldehyde removal air purification device according to claim 2, characterized in that: The bottom of the connecting plate 2 (11) is connected to a hose (12), and an air pump (13) is fixedly connected to the outside of the hose (12).

4. The formaldehyde removal air purification device according to claim 1, characterized in that: The placement cavity (2) is provided with multiple fixing tubes (14) on the inside. The outside of the fixing tubes (14) is snapped into the inside of the fixing frame (3). Washers (15) are fixedly connected to the upper and lower sides of the fixing tubes (14).

5. The formaldehyde removal air purification device according to claim 4, characterized in that: A spiral plate (16) is fixedly connected to the inside of the fixed tube (14), and activated carbon powder (17) is disposed inside the fixed tube (14).

6. The formaldehyde removal air purification device according to claim 1, characterized in that: The adjustment mechanism includes a fixed ring (18), the inner side of which is fixedly connected to the bottom of the positioning column (1), two electric push rods (20) are fixedly connected to the bottom of the fixed ring (18), and multiple telescopic rods (19) are fixedly connected to the lower surface of the fixed ring (18).

7. The formaldehyde removal air purification device according to claim 6, characterized in that: The bottom of the fixed ring (18) and the telescopic rod (19) are both fixedly connected to a chassis (21), and the bottom of the chassis (21) is fixedly connected to multiple casters (22).

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