Indoor air filtering device

Abstract

The invention relates to the technical field of indoor air filtering and purifying, in particular to an indoor air filtering device which comprises a purifying shell assembly, the lower end of the purifying shell assembly is detachably connected with a movable base assembly, and a power mechanism is arranged at the upper end of the movable base assembly. A vertical shaft piece, a rotating shaft piece and a plurality of second gear ring pieces are arranged on the power mechanism, a cleaning mechanism is arranged on the second gear ring pieces, and a primary filter screen is arranged in the cleaning mechanism. Indoor air can be fully purified, the indoor air can be controlled to directionally flow in the device so that the air can be purified through the preliminary filter screen and the air purification assembly in the flowing process, meanwhile, the outer side of the preliminary filter screen can be fully cleaned, and blockage caused by foreign matter attachment is avoided; and meanwhile, the assembled air purification assembly can be rapidly and independently replaced, and during replacement, a corresponding ventilation path can be closed, so that the indoor air purification quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of indoor air filtration and purification technology, and more particularly to an indoor air filtration device. Background Technology

[0002] Dust and smog enter indoor spaces with the air, impacting people and potentially triggering respiratory illnesses and allergic reactions caused by indoor dust. Therefore, air purifiers or air conditioners with air purification functions are commonly used to improve indoor air quality. Generally, this involves using a blower to draw pollutants into the air purifier, where a filter removes them.

[0003] An indoor air filtration device, disclosed in announcement number CN108176165B, includes a filter box, etc. An air outlet pipe is located on the inner lower part of the filter box, a compression device is located on the left side of the filter box, and a stirring device is located on the upper part of the filter box. An upper valve is located on the upper part of the filter box, and a lower valve is located on the lower right side of the filter box. This invention has been developed specifically for indoor air filtration. It enables people to breathe fresh air and achieves rapid filtration. The invention is characterized by its ease of use, safety, simple operation, and low manufacturing cost.

[0004] The above technical solution can improve the quality of air filtration through stirring. However, during operation, the air intake component may become clogged with lint after a long period of operation. Moreover, the machine needs to be stopped when replacing the filter component, which is not conducive to continuous operation. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an indoor air filtration device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An indoor air filtration device includes a purification shell assembly, the lower end of which is detachably connected to a movable base assembly. The upper end of the movable base assembly is provided with a power mechanism, which is provided with a vertical shaft, a rotating shaft, and a plurality of second toothed rings. The second toothed rings are provided with a cleaning mechanism, which contains a preliminary filter screen. The lower end of the preliminary filter screen abuts against the upper end of the movable base assembly, and the preliminary filter screen is disposed through the lower end of the purification shell assembly.

[0008] The movable base assembly is provided with a suction and exhaust mechanism, the purification shell assembly is fixed with a sealing frame, the vertical shaft is rotatably sleeved on the sealing frame, and the upper end of the vertical shaft is provided with a suction and exhaust mechanism.

[0009] The sealing frame and the purification shell assembly are both equipped with a pull-out mechanism. The pull-out mechanism contains multiple support frames. The upper and lower ends of the sealing frame are equipped with multiple flipping mechanisms. The flipping mechanisms contain multiple sealing pressure plates. The upper sealing pressure plates are stacked on top of the lower sealing pressure plates. Each of the two stacked sealing pressure plates has a contact rod fixed on one side. Two contact rods that are set opposite each other form a group. Multiple support frames are respectively set between multiple groups of contact rods. An air purification assembly is installed in the support frame.

[0010] Compared with existing technologies, this application can fully purify indoor air and control the directional flow of indoor air in the device so that the air can be purified by passing through the preliminary filter and air purification components during the flow. At the same time, it can fully clean the outside of the preliminary filter to avoid foreign objects from adhering and causing blockage. In addition, the assembled air purification components can be quickly replaced individually, and the corresponding ventilation path can be sealed during replacement to ensure the quality of indoor air purification.

[0011] Preferably, the power mechanism includes a motor assembly installed in the middle of the upper part of the movable base assembly, the vertical shaft is rotatably sleeved on the purification shell assembly, and a second gear is fixed at one end of the vertical shaft located at the lower end of the purification shell assembly. The second gear is located between a plurality of second gear rings, and the second gear meshes with the plurality of second gear rings.

[0012] The lower end of the purification shell assembly is provided with an abutment transmission mechanism, which is connected to the rotating shaft. Both the abutment transmission mechanism and the motor assembly are provided with abutment transmission discs, and the two abutment transmission discs are arranged overlappingly.

[0013] The lower end of the purification shell assembly is fixed with multiple connecting brackets at equal intervals. The multiple connecting brackets and multiple preliminary filter screens are arranged alternately, and the multiple preliminary filter screens are detachably connected to the movable base assembly.

[0014] Furthermore, the motor assembly selects a matching motor according to the production specifications and other conditions. At the same time, the supporting components required for the use of the motor, such as power cord, speed change component, heat dissipation component, etc., are installed on the upper part of the movable base assembly. Meanwhile, a control panel is installed on the upper part of the purification shell assembly, which can control the start and operation level of the motor. The operating principle of the above equipment is the existing technology.

[0015] The mutual contact transmission mechanism enables the two mutual contact transmission discs to contact each other, and the mutual contact enables the transmission of power so that the vertical shaft and the second gear can rotate. In order to ensure the transmission effect of power, toothed components can be set on the opposite side of the two mutual contact transmission discs, and the teeth on the two mutual contact transmission discs can mesh with each other so that they can mesh after contact to realize the transmission of power.

[0016] When the two opposing transmission discs move relative to each other, the second gear component can drive multiple second gear ring components to rotate. At the same time, the second gear ring components rotate and are sleeved on the lower end of the purification shell assembly, so that under the action of the second gear component, they rotate around the axis of the preliminary filter screen.

[0017] The first toothed ring, the preliminary filter screen, and the second toothed ring are arranged coaxially.

[0018] Preferably, the abutment transmission mechanism includes a third gear component rotatably sleeved on the lower end of the purification shell assembly, the third gear component meshing with the second gear component, a drive shaft fixed at the lower end of the third gear component, the drive shaft rotatably sleeved in the rotating shaft component, a linkage mechanism provided on the drive shaft, a pressure plate component sleeved on one end of the linkage mechanism, and abutment linkage discs installed on the lower end of the pressure plate component and the rotating shaft component;

[0019] The upper contact linkage disc is slidably sleeved on the drive shaft, and the lower contact linkage disc is fixed on the rotating shaft.

[0020] The lower end of the purification shell assembly is fixed with an installation plate, and the lower end of the installation plate is rotatably sleeved with an adjustment component. One end of the adjustment component is fixed with an eccentric abutment component, and the eccentric abutment component abuts against the pressure plate component.

[0021] The lower end of the vertical shaft is slidably sleeved with a linkage shaft, and the other end of the synchronization frame is through-mounted on the linkage shaft. The lower end of the synchronization frame is rotatably sleeved on the upper vertical shaft, and the lower abutment transmission disc is fixed to the end of the output shaft of the motor assembly.

[0022] Furthermore, the eccentric abutment is similar to an ellipse, with a straight end at one end of the ellipse, and the straight end and the arc edge of the ellipse are rounded. This makes it easier for the eccentric abutment to abut the pressure plate. At the same time, the connection position between the adjusting part and the eccentric abutment is set at the end of the long diameter of the eccentric abutment that is away from the straight end.

[0023] The adjusting component can drive the eccentric abutment to rotate. This rotation will cause the eccentric abutment to push the pressure plate to move towards the movable base assembly. When the straight end of the eccentric abutment abuts against the pressure plate, it can ensure the stability of the pressure plate's position. When the pressure plate descends under the action of the eccentric abutment, it will drive the synchronous frame to descend. The descent of the synchronous frame and the pressure plate will cause the two abutting linkage discs to abut against each other. At the same time, in order to ensure the stability of power transmission, toothed components are provided on opposite sides of the abutting linkage discs so that the toothed components can mesh with each other.

[0024] When the upper contact linkage plate descends and contacts the lower contact linkage plate, the second gear drives the third gear to rotate, causing the drive shaft to rotate. The drive shaft drives the upper contact linkage plate to rotate. The contact linkage plate can rotate with the drive shaft and can slide up and down the drive shaft. When the two contact linkage plates contact each other, the rotating shaft can rotate.

[0025] Meanwhile, the rotation of the drive shaft will not affect the pressure plate, and the pressure plate can be raised and lowered relative to the drive shaft. When the pressure plate is raised and lowered, it will drive the synchronous frame to rise and fall. The rise and fall of the synchronous frame can cause the slide bar to rise and fall relative to the partition. At the same time, the tension spring assembly is stretched, and the rotation of the drive shaft will not affect the partition.

[0026] When the tension spring assembly is stretched, it can drive the synchronous frame to reset after the external force is removed, so that the pressure plate can cause the upper contact linkage plate to rise.

[0027] When the synchronous frame is raised or lowered, it drives the upper contact transmission disc and the linkage shaft to rise or fall. The linkage shaft can rise or fall relative to the vertical shaft. At the same time, the rotation of the vertical shaft will drive the linkage shaft to rotate. The linkage shaft can drive the upper contact transmission disc to rotate. The position between the two contact transmission discs can be controlled by the raising or lowering of the synchronous frame, which makes it easy to control whether the power can be transmitted upward.

[0028] Preferably, the linkage mechanism includes a partition plate rotatably sleeved on the drive shaft, a slide rod slidably sleeved at one end of the partition plate, the lower end of the slide rod being fixed to the upper end of the timing frame, and a tension spring assembly sleeved on the slide rod, with the upper and lower ends of the tension spring assembly respectively fixed to the opposite ends of the partition plate and the timing frame.

[0029] Furthermore, the tension spring assembly can adapt to the situation where the pressure plate is squeezed and lowered by the eccentric contact member, causing the synchronous frame to descend. At this time, the tension spring assembly is stretched, and the two contact transmission discs and two contact linkage discs abut against each other, so as to transmit the power of the motor assembly upward, facilitating the operation of the corresponding mechanism. When the external force disappears, that is, when the arc-shaped surface of the eccentric contact member abuts against the upper end of the pressure plate, the tension spring assembly can retract, so as to pull the synchronous frame upward. The rise of the synchronous frame can separate the two contact transmission discs and two contact linkage discs, making it impossible to transmit power.

[0030] Meanwhile, the two ends of the synchronous frame are respectively sleeved on the drive shaft and the linkage shaft, which can ensure that the synchronous frame can only move up and down and cannot deflect. At the same time, the position of the partition can be limited by the sliding rod component.

[0031] Preferably, the cleaning mechanism includes a first toothed ring sleeved on the preliminary filter screen, multiple first toothed rings respectively disposed in multiple second toothed rings, the second toothed rings being rotatably sleeved on the bottom of the purification shell assembly, and the first toothed rings being fixed to the bottom of the purification shell assembly.

[0032] A first gear component is rotatably sleeved on one end sidewall of the first gear component. The first gear component meshes with the first gear ring component. A brush assembly is fixed to the lower end of the first gear component. The brush assembly abuts against the preliminary filter screen. A dust collection cover is fixed to the lower end of the second gear ring component. The brush assembly is located inside the dust collection cover. The dust collection cover abuts against the preliminary filter screen.

[0033] A sealing gasket is provided through the lower end of the dust collection hood. Both the sealing gasket and the rotating shaft are connected to the extraction mechanism. The sealing gasket is mounted on the movable base assembly.

[0034] Furthermore, when a suction force is generated inside the purification shell assembly, causing the gas to pass through the preliminary filter and be discharged through the purification screen assembly, the indoor air will flow towards the preliminary filter. As the gas flows, it will carry dust and other particles. The preliminary filter can initially block some dust and hair, thus achieving preliminary purification and filtration.

[0035] After prolonged use, dust and hair will adhere to the outside of the pre-filter, which may clog the pores on the pre-filter and hinder the purification of indoor air.

[0036] When the equipment is started, the motor assembly operates, causing the vertical shaft and the second gear to rotate via the linkage shaft and two abutting transmission discs. When the second gear rotates, it drives the second gear ring meshing with it to rotate around the axis of the primary filter screen. The second gear ring then drives the first gear installed inside it to revolve around the axis of the primary filter screen. When the first gear revolve, it meshes with the first gear ring, causing the first gear to drive the brush assembly to rotate. The brush assembly can revolve around the axis of the primary filter screen and rotate on its own axis during this revolve, thus cleaning the outside of the primary filter screen without affecting the air extraction operation of the primary filter screen.

[0037] A dust collection cover is installed on the outside of the brush assembly. The dust collection cover can cover the brush assembly. Dust and hair brought up by the dust collection cover during cleaning will be retained inside the dust collection cover. In actual production, corresponding silicone abutment parts can be added to the contact points between the dust collection cover and the brush assembly to seal them and prevent dust from spreading.

[0038] Preferably, the extraction mechanism includes multiple annular grooves disposed on the movable base assembly, multiple preliminary filter screens are respectively installed in the multiple annular grooves, and the sealing gasket is rotatably sleeved in the annular grooves;

[0039] The movable base assembly has a through hole, and multiple suction channels are formed on the side wall inside the through hole. The multiple suction channels extend into multiple annular grooves respectively. The lower end of the rotating shaft extends into the through hole. An air extraction fan blade is fixed to one end of the rotating shaft inside the through hole. A sealing plate is slidably installed on the rotating shaft. The sealing plate abuts against the upper end of the movable base assembly.

[0040] A dust collection box is installed at the lower end of the movable base assembly, and the dust collection box is located at the lower end of the through hole.

[0041] Furthermore, the annular groove is arranged around the preliminary filter screen, and the operating trajectories of the annular groove and the dust collection hood are overlapped.

[0042] The dust collection hood can drive the sealing gasket to rotate in the annular groove. At the same time, the lower end of the dust collection hood is installed through the sealing gasket so that dust and hair in the dust collection hood can enter the annular groove. When the two abutting linkage discs abut against each other, they can cause the rotating shaft to rotate. The lower end of the rotating shaft is rotated and sleeved in the through hole. The rotation of the rotating shaft can cause the exhaust fan blade to rotate so that the gas in the through hole can flow into the dust collection box.

[0043] The through hole is designed with negative pressure, and the sealing plate can fully seal it. The negative pressure in the through hole allows the suction channel to draw out dust and hair from the annular groove, so that the dust and hair can be stored in the dust collection box. At the same time, a screen component is installed at the bottom of the dust collection box to facilitate the flow of gas and retain dust and hair in the dust collection box.

[0044] Preferably, the exhaust mechanism includes an exhaust fan blade mounted on the upper end of the vertical shaft, the exhaust fan blade being located inside the purification shell assembly, and the upper end of the purification shell assembly having multiple discharge ports at equal intervals, with a purification mesh assembly installed inside each discharge port.

[0045] Furthermore, the vertical shaft can drive the exhaust fan blades to rotate, allowing the gas to pass through the air purification component and be discharged through the purification mesh component. At this time, the purification shell component is under negative pressure, which allows the indoor gas to enter the purification shell component through the preliminary filter, and then be purified by the air purification component inside the purification shell component. The purified air can then be discharged back into the room through the purification mesh component.

[0046] Preferably, the pull-out mechanism includes multiple openings evenly spaced in the middle of the purification shell assembly, multiple mounting slots evenly spaced on the periphery of the sealing frame, the multiple openings corresponding to the multiple mounting slots, multiple support frames passing through the multiple mounting slots, and contact frames slidably mounted at both the upper and lower ends of the support frame, and two lifting slots opened near the openings of the support frame, the two lifting slots being arranged sequentially from top to bottom, lifting blocks slidably mounted in the lifting slots, the two lifting blocks being fixedly connected to the two contact frames respectively, and a push rod rotatably connected to one end of each of the two lifting blocks, and a pusher being rotatably connected to one end of each of the two push rods;

[0047] A handle assembly is fixed to one end of the support frame near the opening. A push bolt is threaded into the handle assembly, and one end of the push bolt is rotatably sleeved on one side of the push member.

[0048] The flipping mechanism is connected to the mounting slot.

[0049] Furthermore, the sealing frame is sealed and installed inside the purification shell assembly. Multiple openings are equally spaced in the middle of the purification shell assembly, corresponding to the sealing frame. Multiple mounting slots are equally spaced on the circumferential side wall of the sealing frame, with each mounting slot corresponding to a different opening. This allows the support frame to pass through the openings and extend into the mounting slots. At the same time, through-holes are opened at the top and bottom of the mounting slots. Through-holes allow the top and bottom of the purification shell assembly to be connected. This means that gas located at the lower end of the sealing frame inside the purification shell assembly can enter the top of the purification shell assembly through the two through-holes and the mounting slots, and then be discharged through the purification mesh assembly.

[0050] When the gas passes through the sealing frame, it comes into contact with the air purification component inside the support frame. It passes through the lower end of the air purification component, the upper end of the air purification component, and enters the through-hole at the top of the sealing frame.

[0051] In actual operation, the air purification component uses existing filter parts that can come into contact with the air to clean dust in the air. At the same time, the air purification component can be equipped with activated carbon particles, silver ion materials, mineral-based composite materials, filter materials and physical adsorption materials to improve the quality of air filtration and purification. The air purification component can use existing technology components and be set accordingly according to the installation situation.

[0052] The operator can control the rotation of the push bolt, causing it to reciprocate relative to the handle assembly. The push bolt propels the pusher towards the support frame. The pusher, near the support frame, is connected to two push rods. As the pusher moves towards the support frame, the two push rods move vertically, increasing the distance between the two lifting blocks. This allows the two contact frames to move towards the top and bottom of the mounting slot, respectively. The through-hole is smaller than the top of the mounting slot and smaller than the contact frame, ensuring the air purification component corresponds to the through-hole. Furthermore, during actual manufacturing, a rubber pad can be added to the upper end of the contact frame, deforming upon contact to seal and prevent gas leakage.

[0053] After a certain period of use, the operator can control the rotation of the push bolt, causing it to move the pusher away from the support frame. This shortens the distance between the two contact frames, preventing them from contacting the top and bottom of the mounting slot. The flipping mechanism at this location then seals the two sealing frames, preventing gas from passing through. Simultaneously, the support frame can be removed for replacement and cleaning.

[0054] Preferably, the flipping mechanism includes through openings at the top and bottom of the mounting groove, multiple sealing plates corresponding to multiple through openings respectively, a spring member being fixed between the sealing plates and the through openings, and an abutting rod being fixed at one end of the sealing plate near the through opening, the abutting rod abutting against the abutting frame.

[0055] Furthermore, when the two support frames move in opposite directions, they can abut against the top and bottom of the mounting groove respectively. The two abutting frames move towards the two sealing pressure plates respectively, so that the abutting frames and the abutting rods abut against each other, so that the sealing pressure plates deflect and expose the through-hole, so that gas can flow in the sealing frame.

[0056] Furthermore, when the sealing plate rotates under the action of the abutting rod and the abutting frame, the spring can be stretched. When the abutting frame no longer applies external force to the abutting rod, the spring can pull the sealing plate toward the sealing frame. At the same time, a sealing gasket is fixed on the side of the sealing plate close to the sealing frame. The sealing plate and the sealing frame abut against each other, which can seal the seal.

[0057] Preferably, the size of the through opening is smaller than the size of the abutment.

[0058] Furthermore, the upper end of the contact frame is a ring structure, with the inner dimensions of the ring being smaller than the through opening and the outer dimensions of the ring being larger than the through opening. This facilitates the contact between the upper end of the contact frame and the contact rod, thereby achieving the purpose of driving the sealing pressure plate to rotate.

[0059] The beneficial effects of this invention are:

[0060] 1. By continuously cleaning the intake components, blockages are avoided to ensure smooth air intake, and impurities removed during cleaning are collected and processed.

[0061] 2. The detachable support frame facilitates control over the position of the purification shell components, allowing for easy replacement without stopping the machine, thus continuously purifying the indoor air. Attached Figure Description

[0062] Figure 1 This is a structural diagram of the present invention;

[0063] Figure 2 This is a structural diagram of the upper part of the movable base assembly in this invention;

[0064] Figure 3 This is a structural diagram of the support frame and the contact frame in this invention;

[0065] Figure 4 This is a structural diagram of the sealing frame in this invention;

[0066] Figure 5 Appendix to this invention Figure 2 Enlarged view of point A;

[0067] Figure 6 This is a structural diagram of the synchronization frame in this invention;

[0068] Figure 7 This is a structural diagram of the support frame in this invention;

[0069] In the diagram: 1. Purification shell assembly; 2. Discharge port; 3. Purification screen assembly; 4. Tension spring assembly; 5. Opening; 6. Preliminary filter screen; 7. Motor assembly; 8. Movable base assembly; 9. Connecting frame; 10. Brush assembly; 11. First gear ring; 12. First gear; 13. Second gear ring; 14. Second gear; 15. Vertical shaft; 16. Contact transmission disc; 17. Linkage shaft; 18. Annular groove; 19. Suction channel; 20. Through hole; 21. Dust collection box; 22. Sealing plate; 23. Suction fan blade; 24. Rotating shaft; 25. Sealing gasket ring; 26. Dust cover, 27 lifting block, 28 push rod, 29 push bolt, 30 lifting groove, 31 handle assembly, 32 bearing frame, 33 air purification assembly, 34 contact frame, 35 exhaust fan blade, 36 sealing pressure plate, 37 contact rod, 38 spring, 39 through port, 40 sealing frame, 41 mounting groove, 42 drive shaft, 43 third gear, 44 partition plate, 45 slide rod, 46 synchronization frame, 47 pressure plate, 48 contact linkage plate, 49 mounting plate, 50 adjusting component, 51 eccentric contact component, 52 push component. Detailed Implementation

[0070] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0071] Reference Figures 1-7An indoor air filtration device includes a purification shell assembly 1. A movable base assembly 8 is detachably connected to the lower end of the purification shell assembly 1. Multiple rollers can be installed on the lower end of the movable base assembly 8 to facilitate movement of the purification shell assembly 1. A power mechanism is located at the upper end of the movable base assembly 8. The power mechanism includes a vertical shaft 15, a rotating shaft 24, and multiple second toothed rings 13. The power mechanism provides power and, through the ingenious connection between the components, drives the operation of multiple mechanisms, allowing gas to flow directionally within the purification shell assembly 1. A cleaning mechanism is provided on each of the second toothed rings 13, containing a preliminary filter screen 6. The cleaning mechanism cleans the outer side of the preliminary filter screen 6 to ensure effective gas flow. The lower end of the preliminary filter screen 6 abuts against the upper end of the movable base assembly 8, and the preliminary filter screen 6 extends through the lower end of the purification shell assembly 1. In actual operation, the preliminary filter screen 6... The primary filter 6 is detachably connected to the purification shell assembly 1. A sealing gasket is provided at the upper end of the primary filter 6 to ensure a tight seal. An annular groove is provided at the upper end of the movable base assembly 8, and a rubber gasket is added to the lower end of the primary filter 6, allowing the rubber gasket to be inserted into the annular groove for installation. When the primary filter 6 needs to be replaced, the movable base assembly 8 and the purification shell assembly 1 can be separated. The primary filter 6 can be removed and replaced. The movable base assembly 8 has a suction mechanism to clean impurities from the dust collection hood 26. A sealing frame 40 is fixed inside the purification shell assembly 1, and a vertical shaft 15 is rotatably sleeved on the sealing frame 40. An exhaust mechanism is provided at the upper end of the vertical shaft 15 to control the directional flow of gas, allowing indoor air to pass through the primary filter 6 into the movable base assembly 8 and be discharged through the purification screen assembly 3.

[0072] In this embodiment, the sealing frame 40 and the purification shell assembly 1 are both provided with a pull-out mechanism. The pull-out mechanism contains multiple support frames 32. The pull-out mechanism facilitates the replacement of the support frames 32, so as to effectively replace the used air purification assembly 33. The upper and lower ends of the sealing frame 40 are provided with multiple flipping mechanisms. The flipping mechanisms contain multiple sealing pressure plates 36. The multiple sealing pressure plates 36 at the upper end are overlapped on the multiple sealing pressure plates 36 at the lower end. The flipping mechanism can flip the sealing pressure plates 36 to control whether the gas can flow through the two through ports 39 and the mounting groove 41. The opposite side of the two overlapping sealing pressure plates 36 is fixed with abutment rod 37. The two opposite abutment rods 37 form a group. Multiple support frames 32 are respectively arranged between multiple groups of abutment rods 37. The air purification assembly 33 is installed in the support frame 32. The air purification assembly 33 is sealed in the support frame 32. Through the sealing arrangement, the gas can pass through the air purification assembly 33 so as to fully purify the gas.

[0073] In this embodiment, the power mechanism includes a motor assembly 7 installed in the middle of the upper part of the movable base assembly 8. A vertical shaft 15 is rotatably sleeved on the purification shell assembly 1. A second gear 14 is fixed to one end of the vertical shaft 15 at the lower end of the purification shell assembly 1. The second gear 14 is located between multiple second gear rings 13, and the second gear 14 meshes with the multiple second gear rings 13. A contact transmission mechanism is provided on one side of the lower end of the purification shell assembly 1. The contact transmission mechanism is connected to the rotating shaft 24. Both the contact transmission mechanism and the motor assembly 7 are provided with contact transmission discs 16, and the two contact transmission discs 16 are overlapped. The motor assembly 7 selects a matching motor according to the production specifications, etc. At the same time, the supporting components required for the use of the motor, such as power cord, speed change component, heat dissipation component, etc., are installed on the upper end of the movable base assembly 8. At the same time, a control panel is installed on the upper end of the purification shell assembly 1, which can control the start and operation level of the motor. The operating principle of the above equipment is the prior art.

[0074] Multiple connecting frames 9 are fixed at equal intervals at the lower end of the purification shell assembly 1. The multiple connecting frames 9 and multiple preliminary filter screens 6 are arranged alternately. The multiple preliminary filter screens 6 are detachably connected to the movable base assembly 8, which is convenient for disassembly as needed. The connecting frames 9 have internal threads, and bolts are installed through the movable base assembly 8. The bolts can be screwed into the connecting frames 9 to realize the connection and fixation of the purification shell assembly 1 and the movable base assembly 8.

[0075] The two abutting transmission mechanisms enable the two abutting transmission discs 16 to abut against each other, and the mutual abutment enables the transmission of power so that the vertical shaft 15 and the second gear 14 can rotate. In order to ensure the transmission effect of power, toothed components can be provided on the opposite side of the two abutting transmission discs 16, and the teeth on the two abutting transmission discs 16 can mesh with each other so that they can mesh after abutting and realize the transmission of power.

[0076] When the two abutting transmission discs 16 move relative to each other, the second gear component 14 can drive multiple second gear ring components 13 to rotate. At the same time, the second gear ring components 13 are rotated and sleeved on the lower end of the purification shell assembly 1, so that they can rotate around the axis of the preliminary filter screen 6 under the action of the second gear component 14. The first gear ring component 11, the preliminary filter screen 6, and the second gear ring component 13 are coaxially arranged.

[0077] In this embodiment, the contact transmission mechanism includes a third gear 43 rotatably sleeved on the lower end of the purification shell assembly 1. The third gear 43 meshes with the second gear 14. A drive shaft 42 is fixed to the lower end of the third gear 43. The drive shaft 42 is rotatably sleeved in the rotating shaft 24. A linkage mechanism is provided on the drive shaft 42. A pressure plate 47 is sleeved on one end of the linkage mechanism. Contact linkage discs 48 are installed on both the lower end of the pressure plate 47 and the rotating shaft 24. The upper contact linkage disc 48 is slidably sleeved on the drive shaft 42, and the lower contact linkage disc 48 is fixed on the rotating shaft 24. An mounting plate 49 is fixed to the lower end of the purification shell assembly 1. An adjusting member 50 is rotatably sleeved on the lower end of the mounting plate 49. One end of 50 is fixed with an eccentric abutment 51, which abuts against the pressure plate 47; the lower end of the vertical shaft 15 is slidably sleeved with a linkage shaft 17, and the other end of the synchronous frame 46 is disposed through the linkage shaft 17. The lower end of the synchronous frame 46 is rotatably sleeved on the upper vertical shaft 15, and the abutment transmission disk 16 at the lower end is fixed to the end of the output shaft of the motor assembly 7; the eccentric abutment 51 is similar to an ellipse, and a straight end is provided at one end of the ellipse, and the straight end and the arc edge of the ellipse are rounded. This makes it easy for the eccentric abutment 51 to abut against the pressure plate 47. At the same time, the connection position between the adjusting member 50 and the eccentric abutment 51 is set at the end of the long diameter of the eccentric abutment 51 away from the straight end.

[0078] The adjusting member 50 can drive the eccentric abutment member 51 to rotate. This rotation will cause the eccentric abutment member 51 to push the pressure plate member 47 to move towards the movable base assembly 8. When the straight end of the eccentric abutment member 51 abuts against the pressure plate member 47, the stability of the position of the pressure plate member 47 can be ensured. When the pressure plate member 47 descends under the action of the eccentric abutment member 51, it will drive the synchronous frame 46 to descend. The descent of the synchronous frame 46 and the pressure plate member 47 can make the two abutting linkage discs 48 abut against each other. At the same time, in order to ensure the stability of power transmission, toothed parts are provided on the opposite side of the abutting linkage discs 48 so that the toothed parts can mesh with each other.

[0079] When the upper contact linkage disc 48 descends and contacts the lower contact linkage disc 48, the second gear 14 drives the third gear 43 to rotate, causing the drive shaft 42 to rotate. The drive shaft 42 drives the upper contact linkage disc 48 to rotate. The contact linkage disc 48 can rotate with the drive shaft 42 and can slide up and down the drive shaft 42. When the two contact linkage discs 48 contact each other, the rotating shaft 24 can rotate.

[0080] Meanwhile, the rotation of the drive shaft 42 will not affect the pressure plate 47, and the pressure plate 47 can be raised and lowered relative to the drive shaft 42. When the pressure plate 47 is raised and lowered, it will drive the synchronous frame 46 to be raised and lowered. The raising and lowering of the synchronous frame 46 can cause the slide bar 45 to be raised and lowered relative to the partition plate 44. At the same time, the tension spring assembly 4 is stretched, and the rotation of the drive shaft 42 will not affect the partition plate 44.

[0081] When the tension spring assembly 4 is stretched, it can drive the synchronous frame 46 to reset after the external force is removed, so that the pressure plate 47 can cause the upper contact linkage plate 48 to rise.

[0082] When the timing frame 46 is raised or lowered, it will drive the upper contact transmission disc 16 and the linkage shaft 17 to rise or fall. The linkage shaft 17 can rise or fall relative to the vertical shaft 15. At the same time, the rotation of the vertical shaft 15 will drive the linkage shaft 17 to rotate. The linkage shaft 17 can drive the upper contact transmission disc 16 to rotate. The position between the two contact transmission discs 16 can be controlled by the raising or lowering of the timing frame 46, which makes it easy to control whether the power can be transmitted upward.

[0083] In this embodiment, the linkage mechanism includes a partition plate 44 rotatably sleeved on the drive shaft 42. One end of the partition plate 44 is slidably sleeved with a sliding rod 45. The lower end of the sliding rod 45 is fixed to the upper end of the synchronous frame 46. A tension spring assembly 4 is sleeved on the sliding rod 45. The upper and lower ends of the tension spring assembly 4 are respectively fixed to the opposite ends of the partition plate 44 and the synchronous frame 46. The tension spring assembly 4 can adapt to the situation where the pressure plate 47 is squeezed and lowered by the eccentric abutment member 51, causing the synchronous frame 46 to lower. At this time, the tension spring assembly 4 is stretched, and the two abutment transmission discs 16 and the two abutment linkage discs 48 abut against each other, so as to transmit the power of the motor assembly 7 upward, which facilitates the operation of the corresponding mechanism. When the external force disappears, that is, when the arc surface of the eccentric abutment member 51 abuts against the upper end of the pressure plate 47, the tension spring assembly 4 can contract, so as to pull the synchronous frame 46 upward. The rise of the synchronous frame 46 can separate the two abutment transmission discs 16 and the two abutment linkage discs 48, and power transmission can no longer be carried out.

[0084] Meanwhile, the two ends of the synchronous frame 46 are respectively sleeved on the drive shaft 42 and the linkage shaft 17, which can ensure that the synchronous frame 46 can only move up and down and cannot deflect. At the same time, the position of the partition 44 can be limited by the sliding rod 45.

[0085] In this embodiment, the cleaning mechanism includes a first toothed ring 11 sleeved on the preliminary filter screen 6, multiple first toothed rings 11 respectively disposed within multiple second toothed rings 13, the second toothed rings 13 rotatably sleeved on the bottom of the purification shell assembly 1, and the first toothed rings 11 fixed to the bottom of the purification shell assembly 1; a first gear 12 is rotatably sleeved on one end sidewall of the first gear 12, the first gear 12 meshing with the first toothed rings 11, a brush assembly 10 fixed to the lower end of the first gear 12, the brush assembly 10 abutting against the preliminary filter screen 6, and a dust collection cover 26 fixed to the lower end of the second toothed rings 13. The brush assembly 10 is located inside the dust collection hood 26, which abuts against the preliminary filter screen 6. A sealing gasket 25 is provided through the lower end of the dust collection hood 26. The sealing gasket 25 and the rotating shaft 24 are both connected to the extraction mechanism. The sealing gasket 25 is installed on the movable base assembly 8. When a suction force is generated inside the purification shell assembly 1, the gas passes through the preliminary filter screen 6, passes through the purification shell assembly 1, and is discharged through the purification screen assembly 3. The indoor air will flow towards the preliminary filter screen 6. When the gas flows, it will carry dust and other particles. The preliminary filter screen 6 can initially block some dust and hair, achieving preliminary purification filtration.

[0086] After prolonged use, dust and hair will adhere to the outside of the primary filter 6, which may cause the pores on the primary filter 6 to become clogged, thus hindering the purification of indoor air.

[0087] When the equipment is started, the motor assembly 7 operates, which causes the vertical shaft 15 and the second gear 14 to rotate through the linkage shaft 17 and the two abutting transmission discs 16. When the second gear 14 rotates, it drives the second gear ring 13, which meshes with it, to rotate around the axis of the primary filter screen 6. The second gear ring 13 drives the first gear 12 installed inside it to revolve around the axis of the primary filter screen 6. When the first gear 12 revolves, it meshes with the first gear ring 11, causing the first gear 12 to drive the brush assembly 10 to rotate. The brush assembly 10 can revolve around the axis of the primary filter screen 6 and rotate on its own axis during the revolution, so as to clean the outside of the primary filter screen 6 without affecting the air extraction operation of the primary filter screen 6.

[0088] A dust cover 26 is provided on the outside of the brush assembly 10. The dust cover 26 can cover the brush assembly 10. The dust and hair swept up by the dust cover 26 will be retained inside the dust cover 26. In actual production, corresponding silicone contact parts can be added to the position where the dust cover 26 and the brush assembly 10 meet to seal and prevent dust from spreading.

[0089] In this embodiment, the extraction mechanism includes multiple annular grooves 18 disposed on the movable base assembly 8, multiple preliminary filter screens 6 respectively installed in the multiple annular grooves 18, and a sealing gasket ring 25 rotatably sleeved in the annular grooves 18; the movable base assembly 8 has a through hole 20, and multiple suction channels 19 are formed on the side wall inside the through hole 20, with the multiple suction channels 19 extending into the multiple annular grooves 18 respectively; the lower end of the rotating shaft 24 extends into the through hole 20, and an exhaust fan blade 23 is fixed to one end of the rotating shaft 24 located in the through hole 20; a sealing plate 22 is slidably mounted on the rotating shaft 24, and the sealing plate 22 abuts against the upper end of the movable base assembly 8; a dust collection box 21 is installed at the lower end of the movable base assembly 8, and the dust collection box 21 is disposed at the lower end of the through hole 20; the annular grooves 18 are arranged around the preliminary filter screens 6, and the operating trajectories of the annular grooves 18 and the dust collection cover 26 overlap;

[0090] The dust collection cover 26 can drive the sealing gasket ring 25 to rotate in the annular groove 18. At the same time, the lower end of the dust collection cover 26 is inserted through the sealing gasket ring 25 so that dust and hair in the dust collection cover 26 can enter the annular groove 18. When the two abutting linkage discs 48 abut against each other, the rotating shaft 24 can rotate. The lower end of the rotating shaft 24 is rotated and sleeved in the through hole 20. The rotation of the rotating shaft 24 can cause the exhaust fan blade 23 to rotate so that the gas in the through hole 20 can flow into the dust collection box 21.

[0091] The through hole 20 is set with negative pressure. The sealing plate 22 can fully seal the hole, so that the dust and hair in the annular groove 18 can be extracted through the suction channel 19 by the negative pressure in the through hole 20. The dust and hair can then be stored in the dust collection box 21. At the same time, a screen is installed at the bottom of the dust collection box 21 to facilitate the flow of gas and retain the dust and hair in the dust collection box 21.

[0092] In this embodiment, the exhaust mechanism includes an exhaust fan blade 35 mounted on the upper end of the vertical shaft 15. The exhaust fan blade 35 is located inside the purification shell assembly 1. The upper end of the purification shell assembly 1 has multiple discharge ports 2 at equal intervals, and a purification mesh assembly 3 is installed inside the discharge port 2. The vertical shaft 15 can drive the exhaust fan blade 35 to rotate, so that the gas passes through the air purification assembly 33 and is discharged through the purification mesh assembly 3. At this time, the purification shell assembly 1 is under negative pressure, so that the indoor gas passes through the preliminary filter 6 and enters the purification shell assembly 1, and is then purified by the air purification assembly 33 inside the purification shell assembly 1. The purified air can be discharged back into the room through the purification mesh assembly 3.

[0093] In this embodiment, the pull-out mechanism includes multiple openings 5 ​​evenly spaced in the middle of the purification shell assembly 1. Multiple mounting slots 41 are evenly spaced on the periphery of the sealing frame 40. The multiple openings 5 ​​correspond to the multiple mounting slots 41 respectively. Multiple support frames 32 are respectively installed through the multiple mounting slots 41. The upper and lower ends of the support frame 32 are slidably installed with abutment frames 34. Two lifting slots 30 are opened at the end of the support frame 32 near the opening 5. The two lifting slots 30 are arranged from top to bottom. Lifting blocks 27 are slidably installed in the lifting slots 30. The two lifting blocks 27 are fixedly connected to the two abutment frames 34 respectively. One end of each of the two lifting blocks 27 is rotatably connected with a push rod 28. One end of the two push rods 28 is rotatably connected with a pusher 52.

[0094] A handle assembly 31 is fixed to one end of the support frame 32 near the opening 5. A push bolt 29 is threaded onto the handle assembly 31. One end of the push bolt 29 is rotatably sleeved on one side of the pusher 52.

[0095] The sealing frame 40 is sealed and installed inside the purification shell assembly 1. Multiple openings 5 ​​are equally spaced in the middle of the purification shell assembly 1, and the openings 5 ​​correspond to the sealing frame 40. Multiple mounting slots 41 are equally spaced on the side wall of the sealing frame 40, and the multiple mounting slots 41 correspond to the multiple openings 5 ​​respectively, so that the support frame 32 can pass through the openings 5 ​​and extend into the mounting slots 41. At the same time, the top and bottom of the mounting slots 41 are opened with through holes 39. Through the through holes 39, the top and bottom of the purification shell assembly 1 can be connected. That is, the gas located at the lower end of the sealing frame 40 in the purification shell assembly 1 can enter the top of the purification shell assembly 1 through the two through holes 39 and the mounting slots 41, and then be discharged through the purification mesh assembly 3.

[0096] When the gas passes through the sealing frame 40, it will come into contact with the air purification component 33 in the support frame 32, and will pass through the lower end of the air purification component 33, through the upper end of the air purification component 33, and enter the through-hole 39 at the top of the sealing frame 40.

[0097] In actual operation, the air purification component 33 uses existing filter components that can come into contact with the air to clean the dust in the air. At the same time, the air purification component 33 can be equipped with air purification activated carbon particles, silver ion materials, mineral-based composite materials, filter materials and physical adsorption materials to improve the quality of air filtration and purification. The air purification component 33 can use existing technology components and be set accordingly according to the installation situation.

[0098] The operator can control the rotation of the push bolt 29, which allows the push bolt 29 to reciprocate relative to the handle assembly 31. The push bolt 29 can push the pusher 52 towards the support frame 32. The pusher 52 is connected to two push rods 28 on the side near the support frame 32. As the pusher 52 moves towards the support frame 32, the two push rods 28 move in a vertical direction, increasing the distance between the two lifting blocks 27. This allows the two contact frames 34 to move towards the top and bottom of the mounting groove 41, respectively. The through-hole 39 is smaller than the top of the mounting groove 41, and the through-hole 39 is smaller than the contact frame 34, so that the air purification component 33 corresponds to the through-hole 39. Moreover, during actual manufacturing, a rubber pad can be added to the upper end of the contact frame 34, which can deform upon contact to seal and prevent gas leakage.

[0099] After a certain period of use, the operator can control the rotation of the push bolt 29, causing the push bolt 29 to drive the pusher 52 to move away from the support frame 32. This shortens the distance between the two abutting frames 34, so that the two abutting frames 34 do not abut against the top and bottom of the mounting groove 41. The flipping mechanism at this position can seal the two sealing frames 40 at this location, preventing gas from passing through. At the same time, the support frame 32 can be removed for replacement and cleaning.

[0100] The flipping mechanism is connected to the mounting slot 41. During operation, the flipping mechanism can close the through-hole 39 to prevent gas flow, or leave the through-hole 39 open to facilitate gas flow.

[0101] In this embodiment, the flipping mechanism includes through-holes 39 at the top and bottom of the mounting groove 41. Multiple sealing plates 36 correspond to the multiple through-holes 39 respectively. A spring member 38 is fixed between the sealing plates 36 and the through-holes 39. An abutting rod 37 is fixed at one end of the sealing plate 36 near the through-hole 39. The abutting rod 37 abuts against the abutting frame 34. When the two support frames 32 move in opposite directions, they can abut against the top and bottom of the mounting groove 41 respectively. The two abutting frames 34 move towards the two sealing plates 36 respectively, so that the abutting frame 34 abuts against the abutting rod 37, so that the sealing plates 36 deflect and leak through the through-holes 39, so that gas can flow in the sealing frame 40.

[0102] Furthermore, when the sealing plate 36 rotates under the action of the abutting rod 37 and the abutting frame 34, the spring 38 can be stretched. When the abutting frame 34 no longer applies external force to the abutting rod 37, the spring 38 can pull the sealing plate 36 toward the sealing frame 40. At the same time, a sealing gasket is fixed on the side of the sealing plate 36 near the sealing frame 40. The sealing plate 36 and the sealing frame 40 abut against each other, which can seal the seal.

[0103] In this embodiment, the size of the through opening 39 is smaller than that of the contact frame 34; the upper end of the contact frame 34 is a ring structure, the size of the inner ring is smaller than that of the through opening 39, and the size of the outer ring is larger than that of the through opening 39. This makes it easier for the upper end of the contact frame 34 to contact the contact rod 37 so as to achieve the purpose of pushing the sealing pressure plate 36 to rotate.

[0104] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An indoor air filtration device, comprising a purification housing assembly (1), characterized in that: The lower end of the purification shell assembly (1) is detachably connected to a movable base assembly (8). The upper end of the movable base assembly (8) is provided with a power mechanism. The power mechanism is provided with a vertical shaft (15), a rotating shaft (24) and a plurality of second toothed rings (13). The second toothed rings (13) are provided with a cleaning mechanism. The cleaning mechanism is provided with a preliminary filter screen (6). The lower end of the preliminary filter screen (6) abuts against the upper end of the movable base assembly (8). The preliminary filter screen (6) is disposed through the lower end of the purification shell assembly (1). The movable base assembly (8) is provided with a suction and exhaust mechanism, the purification shell assembly (1) is fixed with a sealing frame (40), the vertical shaft (15) is rotatably sleeved on the sealing frame (40), and the upper end of the vertical shaft (15) is provided with a suction and exhaust mechanism. The sealing frame (40) and the purification shell assembly (1) are provided with a pull-out mechanism. The pull-out mechanism is provided with multiple support frames (32). The upper and lower ends of the sealing frame (40) are provided with multiple flipping mechanisms. The flipping mechanism is provided with multiple sealing pressure plates (36). The multiple sealing pressure plates (36) at the upper end are stacked on the multiple sealing pressure plates (36) at the lower end. The opposite side of the two overlapping sealing pressure plates (36) is fixed with abutting rod (37). The two opposite abutting rods (37) form a group. The multiple support frames (32) are respectively set between the multiple groups of abutting rods (37). The air purification assembly (33) is installed in the support frame (32).

2. An indoor air filtration device according to claim 1, characterized in that: The power mechanism includes a motor assembly (7) installed in the middle of the upper part of the movable base assembly (8), the vertical shaft (15) is rotatably sleeved on the purification shell assembly (1), and a second gear (14) is fixed at one end of the vertical shaft (15) located at the lower end of the purification shell assembly (1). The second gear (14) is located between a plurality of second gear rings (13), and the second gear (14) meshes with the plurality of second gear rings (13). The lower end of the purification shell assembly (1) is provided with an abutment transmission mechanism. The abutment transmission mechanism is connected to the rotating shaft (24). Both the abutment transmission mechanism and the motor assembly (7) are provided with abutment transmission discs (16). The two abutment transmission discs (16) are stacked. The lower end of the purification shell assembly (1) is fixed with multiple connecting frames (9) at equal intervals. The multiple connecting frames (9) and multiple preliminary filters (6) are arranged alternately. The multiple preliminary filters (6) are detachably connected to the movable base assembly (8).

3. An indoor air filtration device according to claim 2, characterized in that: The contact transmission mechanism includes a third gear (43) rotatably sleeved on the lower end of the purification shell assembly (1). The third gear (43) meshes with the second gear (14). A drive shaft (42) is fixed at the lower end of the third gear (43). The drive shaft (42) is rotatably sleeved in the rotating shaft (24). A linkage mechanism is provided on the drive shaft (42). A pressure plate (47) is sleeved on one end of the linkage mechanism. A contact linkage disc (48) is installed on the lower end of the pressure plate (47) and the rotating shaft (24). The upper contact linkage disc (48) is slidably sleeved on the drive shaft (42), and the lower contact linkage disc (48) is fixed on the rotating shaft (24); The lower end of the purification shell assembly (1) is fixed with an installation plate (49), and the lower end of the installation plate (49) is rotatably sleeved with an adjustment member (50). One end of the adjustment member (50) is fixed with an eccentric abutment member (51), and the eccentric abutment member (51) abuts against the pressure plate member (47). The lower end of the vertical shaft (15) is slidably sleeved with a linkage shaft (17), and the other end of the synchronous frame (46) is disposed through the linkage shaft (17). The lower end of the synchronous frame (46) is rotatably sleeved on the upper vertical shaft (15), and the lower abutment transmission disc (16) is fixed to the end of the output shaft of the motor assembly (7).

4. An indoor air filtration device according to claim 3, characterized in that: The linkage mechanism includes a partition (44) rotatably sleeved on the drive shaft (42), a slide rod (45) slidably sleeved on one end of the partition (44), the lower end of the slide rod (45) being fixed to the upper end of the timing frame (46), and a tension spring assembly (4) sleeved on the slide rod (45), with the upper and lower ends of the tension spring assembly (4) respectively fixed to the opposite ends of the partition (44) and the timing frame (46).

5. An indoor air filtration device according to claim 4, characterized in that: The cleaning mechanism includes a first toothed ring (11) sleeved on the preliminary filter screen (6), multiple first toothed rings (11) respectively disposed in multiple second toothed rings (13), the second toothed rings (13) being rotatably sleeved on the bottom of the purification shell assembly (1), and the first toothed rings (11) being fixed to the bottom of the purification shell assembly (1). The first gear component (12) is rotatably sleeved on one end side wall of the first gear component (12). The first gear component (12) meshes with the first gear ring component (11). A brush assembly (10) is fixed at the lower end of the first gear component (12). The brush assembly (10) abuts against the preliminary filter screen (6). A dust collection cover (26) is fixed at the lower end of the second gear ring component (13). The brush assembly (10) is located inside the dust collection cover (26). The dust collection cover (26) abuts against the preliminary filter screen (6). The lower end of the dust cover (26) is provided with a sealing gasket (25). The sealing gasket (25) and the rotating shaft (24) are both connected to the extraction mechanism. The sealing gasket (25) is installed on the movable base assembly (8).

6. An indoor air filtration device according to claim 5, characterized in that: The extraction mechanism includes multiple annular grooves (18) provided on the movable base assembly (8), multiple preliminary filter screens (6) are respectively installed in the multiple annular grooves (18), and the sealing gasket ring (25) is rotatably sleeved in the annular groove (18); The movable base assembly (8) has a through hole (20), and a plurality of suction channels (19) are provided on the side wall inside the through hole (20). The plurality of suction channels (19) extend into a plurality of annular grooves (18). The lower end of the rotating shaft (24) extends into the through hole (20). One end of the rotating shaft (24) located in the through hole (20) is fixed with a suction fan blade (23). A sealing plate (22) is slidably installed on the rotating shaft (24). The sealing plate (22) abuts against the upper end of the movable base assembly (8). A dust collection box (21) is installed at the lower end of the movable base assembly (8), and the dust collection box (21) is located at the lower end of the through hole (20).

7. An indoor air filtration device according to claim 6, characterized in that: The exhaust mechanism includes an exhaust fan blade (35) installed on the upper end of the vertical shaft (15). The exhaust fan blade (35) is located inside the purification shell assembly (1). The upper end of the purification shell assembly (1) is provided with multiple discharge ports (2) at equal intervals. A purification net assembly (3) is installed inside the discharge port (2).

8. An indoor air filtration device according to claim 7, characterized in that: The pull-out mechanism includes multiple openings (5) evenly spaced in the middle of the purification shell assembly (1). Multiple mounting slots (41) are evenly spaced on the periphery of the sealing frame (40). The multiple openings (5) correspond to the multiple mounting slots (41). Multiple support frames (32) are respectively installed through the multiple mounting slots (41). The upper and lower ends of the support frame (32) are slidably installed with abutment frames (34). Two lifting slots (30) are opened at the end of the support frame (32) near the opening (5). The two lifting slots (30) are arranged from top to bottom. Lifting blocks (27) are slidably installed in the lifting slots (30). The two lifting blocks (27) are fixedly connected to the two abutment frames (34). One end of each of the two lifting blocks (27) is rotatably connected with a push rod (28). One end of each of the two push rods (28) is rotatably connected with a pusher (52). The support frame (32) is fixed with a handle assembly (31) near the opening (5). The handle assembly (31) is threaded with a push bolt (29). One end of the push bolt (29) is rotatably sleeved on one side of the pusher (52). The flipping mechanism is connected to the mounting slot (41).

9. An indoor air filtration device according to claim 8, characterized in that: The flipping mechanism includes through openings (39) at the top and bottom of the mounting groove (41), multiple sealing plates (36) corresponding to multiple through openings (39) respectively, and a spring (38) is fixed between the sealing plates (36) and the through openings (39). An abutment rod (37) is fixed at one end of the sealing plate (36) near the through opening (39), and the abutment rod (37) abuts against the abutment frame (34).

10. An indoor air filtration device according to claim 9, characterized in that: The specifications of the through opening (39) are smaller than those of the abutment (34).

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