Device and method for removing indoor formaldehyde air pollution

Abstract

The invention discloses a device and method for removing indoor formaldehyde air pollution, and relates to the technical field of indoor formaldehyde removal, the device comprises a base, the side edge of the base is fixedly connected with a front cavity, the side edge of the front cavity is provided with a replacement mechanism, the replacement mechanism comprises a first motor arranged on the side edge of the front cavity, and the output end of the first motor is provided with a first driving rod; the side, away from the first motor, of the first driving rod is fixedly connected with a disc, the side edge of the disc is fixedly connected with a protruding rod, the side edge of the protruding rod is slidably connected with an equally-divided four-groove plate, the side, away from the protruding rod, of the equally-divided four-groove plate is in transmission connection with a four-rod rotating shaft disc, and a filter screen is arranged on the side edge of the four-rod rotating shaft disc. One side, far away from the first driving rod, of the disc is fixedly connected with a connecting rod, so that the filter screen can be automatically replaced in a quarter circumference manner, manual intervention is not needed, the operation complexity is reduced, the rotating speed of the suction fan is dynamically adjusted, the formaldehyde absorption efficiency is not reduced, the formaldehyde absorption capacity is quickly compensated, the purification response time is shortened, and the indoor formaldehyde concentration fluctuation risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of indoor formaldehyde removal, and in particular to a device and method for removing indoor formaldehyde air pollution. Background Art

[0002] Indoor formaldehyde air pollution is a typical indoor environmental health issue. Its sources, hazards, and control require systematic scientific analysis. Urea-formaldehyde resins and other formaldehyde-containing adhesives are widely used in the production of artificial boards such as plywood and particleboard. These adhesives can release formaldehyde over a period of 3-15 years. For example, prefabricated panels using urea-formaldehyde resins continuously release formaldehyde within the building envelope, resulting in significantly higher formaldehyde concentrations in newly renovated homes than in unrenovated homes. Formaldehyde released from adhesives in decorative materials such as furniture, floor coverings, and synthetic carpets comes into contact with indoor air, creating a continuous source of pollution. Formaldehyde is classified as a Class 1 carcinogen by the World Health Organization, and long-term exposure increases the incidence of nasopharyngeal cancer, lung cancer, and leukemia. Animal studies have shown that it can induce nasopharyngeal cancer and cause chronic damage to organs such as the liver and kidneys. Therefore, it is necessary to use indoor formaldehyde air pollution removal devices to remove indoor formaldehyde.

[0003] In the existing technology, the physical pore structure of porous materials is generally used to adsorb formaldehyde molecules through van der Waals forces to achieve rapid formaldehyde reduction. However, the filter is prone to secondary release after formaldehyde adsorption is saturated, and the filter needs to be automatically and quickly replaced. In addition, the indoor air quality is prone to decline during the replacement process, and the purification response time is long. Therefore, it is necessary to propose a device and method for removing indoor formaldehyde air pollution. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, which generally utilizes the physical pore structure of porous materials to adsorb formaldehyde molecules through van der Waals forces to achieve rapid formaldehyde reduction. However, the filter is prone to secondary release after formaldehyde adsorption is saturated, and the filter needs to be automatically and quickly replaced. In addition, the indoor air quality is prone to decline during the replacement process, and the purification response time is long. A device and method for removing indoor formaldehyde air pollution are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for removing indoor formaldehyde air pollution comprises a base, a side edge of the base is fixedly connected to a front cavity, a side edge of the front cavity is provided with a replacement mechanism, the replacement mechanism comprises a first motor provided on the side edge of the front cavity, an output end of the first motor is provided with a first driving rod, a side of the first driving rod away from the first motor is fixedly connected to a disc, a side edge of the disc is fixedly connected to a convex rod, a side edge of the convex rod is slidably connected to an equally divided four-slot plate, a side edge of the equally divided four-slot plate away from the convex rod is transmission-connected to a four-rod rotating shaft disk, a side edge of the four-rod rotating shaft disk is provided with a filter, a side edge of the disc away from the first driving rod is fixedly connected to a connecting rod, a side edge of the connecting rod is fixedly connected to an inclined block, a side edge of the inclined block away from the connecting rod A continuously variable transmission input belt surface is provided, and the continuously variable transmission input belt surface is transmission-connected to the continuously variable transmission output belt surface on the side away from the inclined block, and the continuously variable transmission output belt surface is transmission-connected to the suction fan on the side away from the continuously variable transmission input belt surface. The first motor drives the disc to rotate through the first driving rod, and the disc rotates a quarter of a circle through the equally divided four-slot plate of the convex rod belt, and the equally divided four-slot plate drives the filter to move and replace through the four-rod rotating shaft disk, and the disc drives the inclined block to rotate through the connecting rod, and the rotation of the inclined block will compress the continuously variable transmission input belt surface to increase the bandwidth diameter, and the continuously variable transmission input belt surface drives the suction fan to accelerate rotation through the continuously variable transmission output belt surface to reduce the purification response time.

[0007] Among them, the radial pressure on the input belt surface of the continuously variable transmission during rotation dynamically adjusts the bandwidth diameter to achieve stepless adjustment of the suction fan speed. The input belt surface of the continuously variable transmission receives the pressure input of the inclined block and changes the transmission ratio through bandwidth changes. The filter adopts an activated carbon filter, which is usually an aluminum honeycomb, plastic honeycomb, paper honeycomb and other structures, and is filled with activated carbon particles or columnar activated carbon. The activated carbon has a porous structure and can adsorb harmful gases such as formaldehyde.

[0008] The above technical solution further includes:

[0009] The front cavity is fixedly connected to the first motor, the side of the equally divided four-slot plate is fixedly connected with a transmission rod, the transmission rod is rotationally connected to the front cavity, and the transmission rod is fixedly connected to the four-rod rotating shaft disk.

[0010] A circular plate with a missing corner is fixedly connected to one side of the circular disc close to the first driving rod, and the circular plate with the missing corner is slidably connected to the plate dividing the four grooves equally.

[0011] A filter cartridge is fixedly connected to one side of the front cavity close to the filter screen, and the suction fan is arranged inside the filter cartridge.

[0012] A storage cylinder is fixedly connected to the upper part of the front cavity near the filter cylinder, a new filter group is provided on the side of the storage cylinder near the filter screen, a pressure plate is provided on the side of the new filter group, a spring is fixedly connected to the side of the pressure plate, and the spring is fixedly connected to the storage cylinder.

[0013] A side plate is fixedly connected to the side of the base away from the front cavity, a second motor is fixedly connected to the upper side of the side plate, a second drive rod is provided at the output end of the second motor, and the second drive rod is transmission-connected to the input belt surface of the continuously variable transmission.

[0014] A support plate is fixedly connected to one side of the base close to the side plate, and both the continuously variable transmission input belt surface and the continuously variable transmission output belt surface are rotatably connected to the support plate.

[0015] A high-pressure steam component is fixedly connected below the filter cartridge, and an air outlet is provided at the output end of the high-pressure steam component.

[0016] The high-pressure steam component has a built-in nano-TiO2 photocatalytic layer, which decomposes formaldehyde into harmless substances under the irradiation of a UV-A light source (365nm), and further decomposes the formaldehyde that may remain inside the device.

[0017] A door panel is rotatably connected to the lower side of the base, a touch screen is provided on the side of the front cavity away from the door panel, and a universal wheel is provided at the bottom of the base.

[0018] Among them, the touch screen can display information such as indoor formaldehyde concentration, filter life, and device status.

[0019] A method for using a device for removing indoor formaldehyde air pollution comprises the following steps:

[0020] Step 1: When the filter usage time reaches the replacement threshold, the replacement mechanism provided outside the front cavity is activated, and the first motor in the replacement mechanism controls the first driving rod to rotate;

[0021] Step 2: The first driving rod drives the convex rod to rotate in a circular manner by using a circular disc. The convex rod moves in one slot inside the equally divided four-slot plate to drive the equally divided four-slot plate to rotate a quarter of a rotation. The equally divided four-slot plate passes through the interior of the front cavity to drive the four-rod rotating shaft disk to rotate;

[0022] Step 3: The four-bar rotating disk rotates to drive the filter screen stuck on the side of the four-bar rotating disk to move and replace. During the replacement process, the disk will also drive the connecting rod to rotate, so that the connecting rod can drive the inclined block to rotate;

[0023] Step 4: When the bevel block rotates, it compresses the input belt surface of the continuously variable transmission, causing the bandwidth diameter of the input belt surface of the continuously variable transmission to increase. The input belt surface of the continuously variable transmission changes the transmission ratio, causing the output belt surface of the continuously variable transmission to rotate faster. The output belt surface of the continuously variable transmission drives the filter cartridge to rotate faster than before, thereby reducing the formaldehyde purification response time.

[0024] The present invention has the following beneficial effects:

[0025] 1. In the present invention, the structural design of the four-slot plate and the four-rod rotating shaft disk is used to realize the automatic replacement of the filter in a quarter circle, without manual intervention, reducing the complexity of operation. During the filter replacement process, the inclined block is used to press the input belt surface of the continuously variable transmission to dynamically adjust the speed of the suction fan to ensure that the formaldehyde absorption efficiency is not reduced, avoiding the purification interruption problem during traditional filter replacement, realizing continuous purification, and automatically increasing the speed of the suction fan when the filter is replaced, quickly compensating for the formaldehyde absorption capacity, shortening the purification response time, and reducing the risk of indoor formaldehyde concentration fluctuations.

[0026] 2. In the present invention, the new filter group in the storage cylinder is designed with a combination of spring and pressure plate to achieve automatic ejection and positioning of the filter, ensuring that the new filter can be quickly put in place after each replacement, supporting long-term continuous operation. The filter adopts aluminum honeycomb, plastic honeycomb and other structures, which facilitates standardized production and replacement, reducing maintenance costs.

[0027] 3. In the present invention, the high-pressure steam component has a built-in nano-TiO2 photocatalytic layer, which decomposes the residual formaldehyde into harmless substances under the irradiation of UV-A light source and discharges it in the form of steam to avoid secondary pollution. The combination of physical adsorption (activated carbon filter) and chemical decomposition (photocatalysis) significantly improves the formaldehyde removal efficiency, which is especially suitable for high-concentration formaldehyde environments.

[0028] 4. In the present invention, the bandwidth dynamic adjustment design of the continuously variable transmission can adapt to the load changes during the filter replacement process, extend the service life of the equipment, and reduce the adsorption load of the filter through the deep purification function of the high-pressure steam component, thereby extending the service life of the filter and reducing the cost of consumables. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a device and method for removing indoor formaldehyde air pollution proposed by the present invention;

[0030] Figure 2 Schematic diagram of the external structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the side view structure of the present invention;

[0032] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0033] Figure 5 for Figure 3 A schematic diagram of the structure at center A;

[0034] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0035] Figure 7 for Figure 4 Enlarged schematic diagram of the structure at point C in the middle.

[0036] In the figure: 1. Base; 2. Front cavity; 3. First motor; 4. First drive rod; 5. Disc; 6. Protruding rod; 7. Four-slot plate; 8. Transmission rod; 9. Four-rod rotating shaft disc; 10. Filter; 11. Corner circular plate; 12. Connecting rod; 13. Bevel block; 14. CVT input belt surface; 15. CVT output belt surface; 16. Filter cartridge; 17. Suction fan; 18. New filter group; 19. Storage cartridge; 20. Spring; 21. Pressure plate; 22. Side plate; 23. Second motor; 24. Second drive rod; 25. Support plate; 26. High-pressure steam component; 27. Air outlet; 28. Door panel; 29. ​​Touch screen; 30. Universal wheel. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figure 1-Figure 7As shown, the present invention is a device for removing indoor formaldehyde air pollution, including a base 1, a front cavity 2 fixedly connected to the side of the base 1, a replacement mechanism provided on the side of the front cavity 2, the replacement mechanism including a first motor 3 provided on the side of the front cavity 2, a first driving rod 4 provided at the output end of the first motor 3, a disc 5 fixedly connected to the side of the first driving rod 4 away from the first motor 3, a convex rod 6 fixedly connected to the side of the disc 5, a four-slot plate 7 equally divided on the side of the convex rod 6, a four-rod rotating shaft disk 9 transmission-connected to the side of the four-rod rotating shaft disk 9, a filter 10 provided on the side of the four-rod rotating shaft disk 9, a connecting rod 12 fixedly connected to the side of the connecting rod 12, an inclined block 13 fixedly connected to the side of the inclined block 13 away from the connecting rod 12 The step-change transmission input belt surface 14, the continuously variable transmission input belt surface 14 is connected to the continuously variable transmission output belt surface 15 on the side away from the inclined block 13, the continuously variable transmission output belt surface 15 is connected to the suction fan 17 on the side away from the continuously variable transmission input belt surface 14, the first motor 3 drives the disc 5 to rotate through the first drive rod 4, the disc 5 rotates a quarter of a circle through the equally divided four-slot plate 7 with the convex rod 6, the equally divided four-slot plate 7 drives the filter 10 to move and replace through the four-rod rotating shaft disk 9, the disc 5 drives the inclined block 13 to rotate through the connecting rod 12, the rotation of the inclined block 13 will compress the continuously variable transmission input belt surface 14 to increase the bandwidth diameter, the continuously variable transmission input belt surface 14 drives the suction fan 17 to accelerate the rotation through the continuously variable transmission output belt surface 15 to reduce the purification response time.

[0039] The front cavity 2 is fixedly connected to the first motor 3, and the side of the four-slot plate 7 is fixedly connected to a transmission rod 8. The transmission rod 8 is rotationally connected to the front cavity 2, and the transmission rod 8 is fixedly connected to the four-rod rotating shaft disk 9.

[0040] When the filter screen needs to be replaced, the replacement mechanism arranged outside the front cavity 2 is started, and the first motor 3 fixedly installed on the side wall of the front cavity 2 in the replacement mechanism starts to run. When the first motor 3 is running, it starts to control the first driving rod 4 arranged at its output end to rotate. When the first driving rod 4 rotates, it drives the disc 5 fixedly connected to the other side thereof to rotate. When the disc 5 rotates, it drives the convex rod 6 fixedly connected to its side to rotate in a circular manner. When the convex rod 6 rotates, it will slide inside a slot of the equally divided four-slot plate 7. When the convex rod 6 rotates to drive the equally divided four-slot plate 7 to rotate a quarter of a circle, the connection between the convex rod 6 and the equally divided four-slot plate 7 will be disengaged, so that the disc 5 will only drive the equally divided four-slot plate 7 to rotate a quarter of a circle when it rotates. When the equally divided four-slot plate 7 rotates, it will drive the transmission rod 8 fixedly connected to its side to rotate. When the transmission rod 8 rotates, it will pass through the front cavity 2 The inner part of the disc 5 drives the four-bar rotating shaft disc 9 to rotate, and the four-bar rotating shaft disc 9 rotates a quarter of the way to move the filter screen 10, and the filter screen 10 leaves its original position, and the new filter screen 10 enters the position of the original filter screen 10, completing the replacement operation. In the replacement process, the disc 5 rotates and drives the connecting rod 12 fixedly connected to the other side thereof to rotate. When the connecting rod 12 rotates, it drives the inclined block 13 fixedly connected to its side to rotate. When the inclined block 13 rotates, it gradually presses the CVT input belt surface 14, so that the CVT input belt surface 14 increases its own bandwidth diameter, and the transmission ratio between the CVT input belt surface 14 and the CVT output belt surface 15 increases, so that the CVT input belt surface 14 drives the CVT output belt surface 15 to rotate faster. When the CVT output belt surface 15 rotates, it drives the filter cartridge 16 to rotate faster, thereby speeding up the absorption of formaldehyde and reducing the purification response time of replacing the filter screen 10.

[0041] In one embodiment, for the circular disc 5 , a notched circular plate 11 is fixedly connected to one side of the circular disc 5 close to the first driving rod 4 , and the notched circular plate 11 is slidably connected to the equally divided four-slot plate 7 .

[0042] In this embodiment, when the disc 5 rotates, the disc 5 drives the notched circular plate 11 fixedly connected to its side to slide on the side of the equally divided four-slot plate 7, thereby ensuring the stability of the disc 5 and the equally divided four-slot plate 7 when rotating.

[0043] In one embodiment, for the front cavity 2 , a filter cartridge 16 is fixedly connected to one side of the front cavity 2 close to the filter screen 10 , and a suction fan 17 is disposed inside the filter cartridge 16 .

[0044] In this embodiment, when the suction fan 17 rotates, it absorbs the indoor air containing formaldehyde, filters it through the filter 10, and then sucks it into the filter cartridge 16.

[0045] In one embodiment, for the above-mentioned front cavity 2, a storage cylinder 19 is fixedly connected to the top of the front cavity 2 near the filter cylinder 16, and a new filter group 18 is provided on the side of the storage cylinder 19 near the filter 10. A pressure plate 21 is provided on the side of the new filter group 18, and a spring 20 is fixedly connected to the side of the pressure plate 21. The spring 20 is fixedly connected to the storage cylinder 19.

[0046] In this embodiment, when the filter 10 is moved and replaced, the storage cylinder 19 arranged above the filter 10 will move a group of new filters 10 to the filtering position. A pressure plate 21 is provided on the other side of the new filter group 18. A spring 20 is fixedly connected between the pressure plate 21 and the storage cylinder 19. The spring 20 is in a compressed state and accumulates elastic potential energy. When a group of storage cylinders 19 is moved away, the spring 20 will use its own elastic potential energy to move a new group of storage cylinders 19 to the original position, which is convenient for subsequent multiple replacement operations.

[0047] In one embodiment, for the base 1, a side plate 22 is fixedly connected to the side of the base 1 away from the front cavity 2, a second motor 23 is fixedly connected to the side above the side plate 22, and a second drive rod 24 is provided at the output end of the second motor 23, and the second drive rod 24 is transmission-connected to the input belt surface 14 of the continuously variable transmission.

[0048] In this embodiment, a side plate 22 is fixedly connected to the other side of the base 1. When the second motor 23 fixedly connected to the side wall of the side plate 22 is started, the second motor 23 will start to run and control the second drive rod 24 set at its output end to rotate. The second drive rod 24 will drive the continuously variable transmission input belt surface 14 to rotate, and the filter cartridge 16 will be driven through the continuously variable transmission input belt surface 14 and the continuously variable transmission output belt surface 15 to perform indoor formaldehyde air inhalation operations during normal periods.

[0049] In one embodiment, for the base 1 , a support plate 25 is fixedly connected to one side of the base 1 close to the side plate 22 , and both the CVT input belt surface 14 and the CVT output belt surface 15 are rotatably connected to the support plate 25 .

[0050] In this embodiment, when the continuously variable transmission input belt surface 14 and the continuously variable transmission output belt surface 15 rotate, they will rotate outside the support plate 25 fixedly connected above the base 1, and be rotationally connected to the continuously variable transmission input belt surface 14 and the continuously variable transmission output belt surface 15 by means of a bearing rod.

[0051] In one embodiment, for the fire warning assembly, a high-pressure steam assembly 26 is fixedly connected below the filter cartridge 16 , and an air outlet 27 is provided at the output end of the high-pressure steam assembly 26 .

[0052] In this embodiment, a nano-TiO2 photocatalytic layer is built into the high-pressure steam component 26, which decomposes formaldehyde into harmless substances under the irradiation of a UV-A light source at 365nm and discharges the formaldehyde in the form of steam.

[0053] In one embodiment, for the above-mentioned fire warning assembly, a door panel 28 is rotatably connected to the lower side of the base 1, a touch screen 29 is provided on the side of the front cavity 2 away from the door panel 28, and a spring 20 is provided at the bottom of the base 1.

[0054] In this embodiment, when the old filter 10 is replaced, it will enter the cavity space formed between the front cavity 2 and the door panel 28. The user can take out the old filter 10 for disposal or regeneration by rotating the door panel 28. The touch screen 29 arranged on the side of the base 1 can be used to display some information of the device and the formaldehyde content in the air. Multiple sets of universal wheels 30 are evenly arranged at the bottom of the base 1, which can be used to drive the device to move.

[0055] 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. A device for removing indoor formaldehyde air pollution, comprising a base (1), characterized in that: The side of the base (1) is fixedly connected to the front cavity (2), and the side of the front cavity (2) is provided with a replacement mechanism, and the replacement mechanism includes a first motor (3) provided on the side of the front cavity (2), and the output end of the first motor (3) is provided with a first drive rod (4), and the side of the first drive rod (4) away from the first motor (3) is fixedly connected to a disc (5), and the side of the disc (5) is fixedly connected to a convex rod (6), and the side of the convex rod (6) is slidably connected to an equally divided four-slot plate (7), and the side of the equally divided four-slot plate (7) away from the convex rod (6) is transmission-connected to a four-rod rotating shaft disk (9), and the side of the four-rod rotating shaft disk (9) is provided with a filter screen (10), and the side of the disc (5) away from the first drive rod (4) is fixedly connected to a connecting rod (12), and the side of the connecting rod (12) is fixedly connected to an inclined block (13), and the side of the inclined block (13) away from the connecting rod (12) is provided with a continuously variable transmission input belt surface. (14), the continuously variable transmission input belt surface (14) is connected to the continuously variable transmission output belt surface (15) on the side away from the inclined block (13), and the continuously variable transmission output belt surface (15) is connected to the suction fan (17) on the side away from the continuously variable transmission input belt surface (14). The first motor (3) drives the disc (5) to rotate through the first driving rod (4), and the disc (5) rotates a quarter of a circle through the equally divided four-slot plate (7) with the convex rod (6). The equally divided four-slot plate (7) drives the filter (10) to move and replace through the four-rod rotating shaft disk (9). The disc (5) drives the inclined block (13) to rotate through the connecting rod (12). The rotation of the inclined block (13) will compress the continuously variable transmission input belt surface (14) to increase the bandwidth diameter. The continuously variable transmission input belt surface (14) drives the suction fan (17) to accelerate the rotation through the continuously variable transmission output belt surface (15) to reduce the purification response time.

2. A device for removing indoor formaldehyde air pollution according to claim 1, characterized in that: The front cavity (2) is fixedly connected to the first motor (3), the side of the equally divided four-slot plate (7) is fixedly connected with a transmission rod (8), the transmission rod (8) is rotationally connected to the front cavity (2), and the transmission rod (8) is fixedly connected to the four-rod rotating shaft disk (9).

3. A device for removing indoor formaldehyde air pollution according to claim 1, characterized in that: A missing-corner circular plate (11) is fixedly connected to one side of the circular disc (5) close to the first driving rod (4), and the missing-corner circular plate (11) is slidably connected to the equally divided four-slot plate (7).

4. A device for removing indoor formaldehyde air pollution according to claim 3, characterized in that: A filter cartridge (16) is fixedly connected to one side of the front cavity (2) close to the filter screen (10), and the suction fan (17) is arranged inside the filter cartridge (16).

5. A device for removing indoor formaldehyde air pollution according to claim 4, characterized in that: A storage cylinder (19) is fixedly connected to the upper portion of the front cavity (2) near the filter cylinder (16); a new filter group (18) is provided on one side of the storage cylinder (19) near the filter screen (10); a pressure plate (21) is provided on the side of the new filter group (18); a spring (20) is fixedly connected to the side of the pressure plate (21); and the spring (20) is fixedly connected to the storage cylinder (19).

6. The device for removing indoor formaldehyde air pollution according to claim 1, characterized in that: A side plate (22) is fixedly connected to the side of the base (1) away from the front cavity (2); a second motor (23) is fixedly connected to the upper side of the side plate (22); a second drive rod (24) is provided at the output end of the second motor (23); and the second drive rod (24) is transmission-connected to the input belt surface (14) of the continuously variable transmission.

7. A device for removing indoor formaldehyde air pollution according to claim 6, characterized in that: A support plate (25) is fixedly connected to one side of the base (1) close to the side plate (22), and the continuously variable transmission input belt surface (14) and the continuously variable transmission output belt surface (15) are both rotatably connected to the support plate (25).

8. The device for removing indoor formaldehyde air pollution according to claim 4, characterized in that: A high-pressure steam component (26) is fixedly connected below the filter cartridge (16), and an air outlet (27) is provided at the output end of the high-pressure steam component (26).

9. The device for removing indoor formaldehyde air pollution according to claim 1, characterized in that: A door panel (28) is rotatably connected to the lower side of the base (1), a touch screen (29) is provided on the side of the front cavity (2) away from the door panel (28), and a universal wheel (30) is provided at the bottom of the base (1).

10. The method for using the device for removing indoor formaldehyde air pollution according to claim 1, characterized in that: The following steps are involved: Step 1: When the filter usage time reaches the replacement threshold, the replacement mechanism provided outside the front cavity (2) is activated, and the first motor (3) in the replacement mechanism controls the first driving rod (4) to rotate; Step 2: The first driving rod (4) drives the convex rod (6) to rotate in a circular manner by using the circular disc (5); the convex rod (6) drives the equally divided four-slot plate (7) to rotate by a quarter by moving in a slot inside the equally divided four-slot plate (7); the equally divided four-slot plate (7) passes through the interior of the front cavity (2) and drives the four-rod rotating shaft disk (9) to rotate; Step 3: The four-bar rotating shaft disk (9) rotates to drive the filter screen (10) stuck on the side of the four-bar rotating shaft disk (9) to move and replace. During the replacement process, the disc (5) will also drive the connecting rod (12) to rotate, so that the connecting rod (12) can drive the inclined block (13) to rotate; Step 4: When the inclined block (13) rotates, it presses the input belt surface (14) of the continuously variable transmission, so that the belt width diameter of the input belt surface (14) of the continuously variable transmission increases. The input belt surface (14) of the continuously variable transmission changes the transmission ratio so that the output belt surface (15) of the continuously variable transmission rotates faster. The output belt surface (15) of the continuously variable transmission drives the filter cartridge (16) to rotate faster than before, thereby reducing the formaldehyde purification response time.

Images