CN213577949U - Portable airtight space air purifier - Google Patents

Abstract

The utility model relates to a portable airtight space air purifier. The air conditioner comprises a shell with an opening at the bottom and a groove at the top, wherein an air inlet is arranged on the side wall of the shell, and the bottom of the groove is a plane and is provided with an air outlet and a through window; a bottom cover is arranged on the bottom opening of the shell, an annular lower partition plate with a notch at the side part is arranged on the bottom cover, and a primary filtering component is arranged on the notch; a fan assembly and a rotator are mounted on the bottom cover, the fan assembly is positioned below the air outlet, and the rotator is positioned below the through window; a second-stage filtering component is also arranged in the groove, the second-stage filtering component comprises a circular base plate, the center of the circular base plate is provided with a connecting insertion rod, an annular fine filtering net is arranged on the outer side of the base plate, the fine filtering net is positioned above the air outlet, and the connecting insertion rod penetrates through the through window and is connected with the gyrator in an inserting mode; a wind distribution cover with wind holes is also arranged in the groove. The utility model has the advantages of reasonable design, filter the high-usage of consumptive material and be convenient for change operation, purifying effect good.

Description

Portable airtight space air purifier

Technical Field

The utility model belongs to the technical field of air purification equipment, especially, relate to a portable airtight space air purifier.

Background

The air purifier is a product capable of purifying air and effectively improving the air cleanliness, and the air cleanliness is improved by providing filtration, adsorption, electrostatic dust collection and other treatments for the air. With the improvement of living standard and technical standard of people, the air purifier gradually develops towards miniaturization, compactness and portability. The air purifier is designed to be compact and convenient to carry, the application scene of the product is greatly expanded, the air purifier product mainly applied to families and industrial scenes is developed towards the direction of an on-vehicle purifier and a desktop purifier, and convenience is provided for the life of people.

In-car scenes and small bedroom/office scenes may be generally referred to as closed scenes or closed spaces, corresponding to open spaces such as office building public areas, business building areas, family living rooms, and the like. Under the general condition, the air purifier product that sets up in open space is bulky, the function is abundant and the purification performance is strong, belongs to the purifier product that the position is relatively fixed, sets up the purifier product that the position takes place to remove often not promptly. The purifier product applied to the closed space has small submission, relatively single function and relatively weak purification capacity, and the differences are determined by specific application scenarios.

As described above, the miniaturized air purifier applied to the enclosed space can be carried and moved, which solves the trouble that people purchase a plurality of products in different scenes. Structurally, portable air purifiers generally include a housing, a fan assembly and a filter assembly disposed in the housing, the fan assembly drawing air in through an air hole in the housing, the air being treated by the filter assembly and then being discharged through an air outlet.

The air purifier with the structure has the following problems: firstly, the structure of single-stage filtration is difficult to ensure good treatment effect on air; secondly, the air outlet of the air purifier is generally aligned with the middle position of the filtering consumable, so that air passes through the middle position of the filtering consumable in a concentrated manner, only the middle position of the consumable is fully utilized, and the position of the side part of the consumable is less utilized, so that the utilization rate of the consumable is reduced; moreover, the consumables of the air purifier are not convenient to replace.

In summary, the structure of the portable air purifier needs to be optimized to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem that exists among the known art and provide a structural design is reasonable, filter consumptive material high-usage and be convenient for change operation, portable airtight space air purifier that purifying effect is good.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a portable air purifier with a closed space comprises a shell with an opening at the bottom and a groove at the top, wherein an air inlet is arranged on the side wall of the shell, and the bottom of the groove is a plane and is provided with an air outlet and a through window; a bottom cover is arranged on the bottom opening of the shell, an annular lower partition plate with a notch at the side part is arranged on the bottom cover, a primary filter assembly is arranged on the notch, an assembly bin opening for dismounting the primary filter assembly is arranged on the bottom cover, and an assembly bin cover is arranged on the assembly bin opening; a fan assembly and a rotator are mounted on the bottom cover, the fan assembly is positioned below the air outlet, and the rotator is positioned below the through window; a second-stage filtering component is also arranged in the groove, the second-stage filtering component comprises a circular base plate, the center of the circular base plate is provided with a connecting insertion rod, an annular fine filtering net is arranged on the outer side of the base plate, the fine filtering net is positioned above the air outlet, and the connecting insertion rod penetrates through the through window and is connected with the gyrator in an inserting mode; a wind distribution cover with wind holes is also arranged in the groove.

The utility model has the advantages that:

the utility model provides a portable airtight space air purifier that structural design is reasonable compares with current portable air purifier, the utility model discloses in set up one-level filtering component and second grade filtering component through the inside at the clarifier, realized the two-stage filter effect to the air, consequently better to the purification treatment effect of air. Through adopting the gyrator to drive the second-stage filtering component to periodically rotate, the change adjustment of the position of the filter screen of the second-stage filtering component above the air outlet is realized, the air outlet is effectively prevented from being opposite to the filter screen at the same position for a long time, the filter screen can be fully and effectively utilized, the replacement period of the filter screen is prolonged, and the cost for replacing the filter screen is reduced. The utility model discloses in through setting up one-level filtering component dismantled and assembled in the subassembly door, set up the plug connection between second grade filtering component and the gyrator simultaneously, make the two-stage filtering component homoenergetic carry out quick convenient dismouting, realized the quick replacement of filtration consumptive material, promoted the convenience of using. The utility model discloses an air purifier overall structure is small and exquisite, very portable and use.

Preferably: the first-level filtering component comprises a shell with an opening in the inner side, an air hole is formed in the outer side wall of the shell, and a HEPA filter screen is installed in the inner cavity of the shell.

Preferably: the gyrator comprises a bottom shell fixedly connected with a bottom cover, a shaft sleeve is arranged on the outer side of the bottom shell, a worm and gear structure is arranged in the bottom shell and the shaft sleeve, the gyrator further comprises a motor for driving a worm to rotate, an upper cover is installed at a top opening of the bottom shell, a connecting seat with a jack at the center is arranged at the center of a worm gear, and the upper end of the connecting seat is exposed out of a window in the center of the upper cover.

Preferably: both the bottom cover and the lower baffle are of an integrated injection molding structure, a first sliding groove and a second sliding groove which are integrally formed in an injection molding mode are arranged on two sides of a notch of the lower baffle, and two ends of a shell of the primary filtering component are respectively located in the first sliding groove and the second sliding groove.

Preferably: an annular inner supporting ring is arranged below the substrate, an annular outer supporting ring is arranged on the outer edge of the fine filtering net, and silica gel gaskets are arranged at the bottoms of the inner supporting ring and the outer supporting ring.

Preferably: the integrative injection moulding of shell obtains, has the strengthening rib net at the integrative injection moulding of the lower surface of recess.

Preferably: the circuit board of the air purifier is fixedly arranged on the bottom cover outside the lower partition plate, the circuit board is provided with a key for controlling the power switch, and after the shell is assembled with the bottom cover, the key is exposed out of a key hole formed in the side part of the shell.

Preferably: the top wall of the shell is integrally injection-molded with an upper partition plate which is consistent with the outline of the lower partition plate, and after the shell and the bottom cover are assembled, the upper partition plate and the lower partition plate are in butt joint to form a complete partition plate, so that the inner space is divided into an isolated inner space and an isolated outer space.

Preferably: still install the gravity sensor who is used for detecting whether air purifier forward places on the bottom, gravity sensor is connected with the circuit board electricity.

Preferably: the bottom cover is also integrally injection-molded with a battery compartment cover, and a rechargeable battery is arranged in the battery compartment and is electrically connected with the circuit board.

Drawings

Fig. 1 is a schematic view of the external structure of the present invention, from the top;

fig. 2 is a schematic view of the external structure of the present invention, from the lower perspective;

fig. 3 is a schematic top view of the present invention, with the air distribution cover removed;

fig. 4 is a schematic top view of the present invention, with the air separation cover and the fine filter assembly removed;

fig. 5 is a schematic top view of the present invention, with the air separation cover, the fine filter assembly and the housing removed;

fig. 6 is a schematic view of the internal structure of the present invention;

fig. 7 is a schematic structural view of the gyrator of fig. 6.

In the figure:

1. an air inlet; 2. a bottom cover; 2-1, supporting ground feet; 2-2, a lower connecting column; 3. a housing; 3-1, mounting holes; 3-2, reinforcing rib nets; 3-3, an air outlet; 3-4, a transparent window; 4. pressing a key; 5. a wind distribution cover; 6. a primary filter assembly; 7. a component bin cover; 8. a battery compartment; 9. a secondary filtration component; 9-1, connecting the inserted link; 9-2, an inner support ring; 9-3, a substrate; 9-4, fine filtering net; 9-5, outer support ring; 10. a gyrator; 10-1, shaft sleeve; 10-2, a motor; 10-3, a connecting seat; 10-4, an upper cover; 10-5, a bottom shell; 11. a gravity sensor; 12. a lower partition plate; 12-1, a first chute; 12-2, a second chute; 13. a circuit board; 14. a fan assembly.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments are described in detail.

Referring to fig. 1 and 2, the portable air purifier for enclosed space of the present invention includes a housing 3 with an open bottom and a groove at the top, an air inlet 1 is disposed on the sidewall of the housing 3, and the groove bottom is a plane and is provided with an air outlet 3-3 and a through window 3-4. As shown in the figure, the air inlet 1 is composed of a plurality of independent air inlet holes, and air enters the interior of the purifier through the air inlet 1, is purified and then is discharged through the air outlets 3-3.

Install bottom 2 on the uncovered bottom of shell 3, be equipped with annular, the lateral part has the lower baffle 12 of breach on bottom 2, install one-level filtering component 6 on the breach, be equipped with the subassembly storehouse mouth that supplies the dismouting of one-level filtering component 6 and be equipped with subassembly storehouse lid 7 on subassembly storehouse mouth on bottom 2. When the first-stage filtering component 6 is disassembled and assembled, the component bin cover 7 is firstly opened to open the component bin opening, and then the first-stage filtering component 6 can be put in or taken out, so that the replacement operation of the first-stage filtering component 6 is very convenient.

As shown in the figure, the primary filter assembly 6 includes a casing with an open inner side, an air hole is formed on the outer side wall of the casing, and a HEPA filter (not shown in the figure) is installed in the inner cavity of the casing. Wherein, the casing is used for providing a rigid installation space for the HEPA filter screen, avoids the HEPA filter screen to receive effects such as extrusion and warp when promoting the convenience of 6 installations of one-level filtering component.

The HEPA filter screen is a commercial product and is obtained by commercial purchase. Specifically, a HEPA (High efficiency particulate air Filter) is a Filter meeting the HEPA standard, the effective rate of 0.1 micron and 0.3 micron reaches 99.998%, and the HEPA is characterized in that air can pass through but fine particles cannot pass through. The utility model discloses in, the rectangular shape is makeed into to the HEPA filter screen, fills in one-level filtering component 6's casing in.

Can make the HEPA filter screen as consumptive material, casing used repeatedly, like this when the HEPA filter screen needs to be changed, need wholly take out one-level filtering component 6, take out the HEPA filter screen from the casing again, put into the casing with new HEPA filter screen again with one-level filtering component 6 repacking. Also can be with one-level filtering component 6 global design for the consumptive material, when needing to be changed, take out one-level filtering component 6 wholly and the global change.

Referring to fig. 5 and 6, it can be seen that:

a fan assembly 14 and a rotator 10 are mounted on the bottom cover 2, the fan assembly 14 is located below the air outlet 3-3, and the rotator 10 is located below the through window 3-4. The fan assembly 14 is used for providing power for the air flow, as shown in the figure, the fan assembly 14 structurally comprises an impeller and a driving motor, the impeller is integrally formed by injection molding, a bulge is formed in the middle, a space for accommodating the driving motor is formed at the bottom of the bulge, the driving motor falls into the space, and a motor shaft is connected with the impeller, so that the impeller and the driving motor form a combination body, and the driving motor is fixedly arranged on the bottom cover 2 during installation.

The gyrator 10 is used to provide a gyrating drive effect, see fig. 7, where it can be seen that: the gyrator 10 comprises a bottom shell 10-5 fixedly connected with the bottom cover 2, a shaft sleeve 10-1 is arranged on the outer side of the bottom shell 10-5, a worm gear structure is arranged in the bottom shell 10-5 and the shaft sleeve 10-1, specifically, a worm part of the worm gear structure is positioned in the shaft sleeve 10-1, a worm wheel part is positioned in the bottom shell 10-5, the shaft sleeve 10-1 is communicated with the bottom shell 10-5, and therefore the worm gear is in transmission connection at the communicated position. The worm gear type worm gear further comprises a motor 10-2 for driving the worm to rotate, an upper cover 10-4 is installed at the top opening of the bottom shell 10-5, a connecting seat 10-3 with a jack at the center is arranged at the center of the worm gear, and the upper end of the connecting seat 10-3 is exposed out of a window in the center of the upper cover 10-4.

The motor 10-2 drives the worm to rotate, the worm drives the worm wheel to rotate, and the connecting seat 10-3 rotates along with the worm wheel to provide a rotary driving effect for the outside.

Referring to fig. 3 and 4, it can be seen that:

still be equipped with second grade filter assembly 9 in the recess of shell 3, second grade filter assembly 9 provides the second grade filtration purification treatment to the air through the primary filtration. Specifically, the secondary filter assembly 9 comprises a circular base plate 9-3 with a connecting inserted rod 9-1 arranged in the center, an annular fine filter net 9-4 is arranged on the outer side of the base plate 9-3, the fine filter net 9-4 is positioned above the air outlet 3-3, the connecting inserted rod 9-1 penetrates through the through window 3-4 and is connected with the gyrator 10 in an inserting mode, and specifically, the connecting inserted rod 9-1 is connected into an inserted hole in the center of the connecting base 10-3 in an inserting mode. Therefore, when the gyrator 10 drives the secondary filter component 9, the annular fine filter net 9-4 rotates in a gyration way, so that different positions correspond to the air outlet 3-3 after the rotation, thus the different positions of the fine filter net 9-4 can be fully utilized, the problem that only the middle position of the filter net can be utilized and the side position can be less utilized in the prior art is solved, and the replacement time of the fine filter net 9-4 is prolonged.

The fine filter 9-4 can also adopt HEPA filter screens, and the HEPA filter screens can be divided into four types under general conditions: except for a common HEPA filter screen, the second type is an ultra HEPA filter screen, the effective rate of 0.1 micron and 0.3 micron reaches 99.9995 percent, the third type is a sub HEPA filter screen, and the third type is an antibacterial HEPA filter screen, so that the filter screen has a certain antibacterial effect. The above various types are existing products, and can be obtained by market purchase or customization. Therefore, the primary filter assembly 6 can be selected to be a normal HEPA filter or a sub-HEPA filter, and the fine filter 9-4 of the primary filter assembly 9 can be selected to be an ultra-HEPA filter or an antibacterial HEPA filter.

Considering that a gap is left between the secondary filter assembly 9 and the bottom of the groove, the air without secondary filtering purification can escape through the through window 3-4 and move out through the gap laterally (not through the fine filter net 9-4), in this embodiment, an annular inner support ring 9-2 is provided below the base plate 9-3, an annular outer support ring 9-5 is provided on the outer edge of the fine filter net 9-4, and silicone gaskets are mounted on the bottoms of both the inner support ring 9-2 and the outer support ring 95. Wherein the outer support ring 9-5 simultaneously enhances the overall structural strength of the secondary filter assembly 9.

After the secondary filter assembly 9 is loaded into the groove, the silica gel gaskets at the bottoms of the inner side support ring 9-2 and the outer side support ring 95 are attached to the bottom of the groove, so that a transverse flow channel of air which is not subjected to secondary purification treatment is cut off, namely all the air needs to pass through the fine filter net 9-4.

The groove of the shell is also internally provided with a wind distribution cover 5 with wind holes, the air which completes the two-stage filtration is discharged through the wind holes of the wind distribution cover 5, and the wind distribution cover 5 improves the uniformity of the discharged air, so that the purified discharged air is discharged in a decentralized mode.

As shown in fig. 3 and 4, in the present embodiment, the sub-hoods 5 are connected to the housing 3 in the following manner: the edge position of the groove of the shell 3 is provided with a plurality of mounting holes 3-1, a plurality of mounting bolts are arranged at corresponding positions of the bottom of the edge of the air distribution cover 5, bushings made of rubber are arranged in the mounting holes 3-1, when the air distribution cover 5 is assembled on the shell 3, the mounting bolts are inserted into the mounting holes 3-1 downwards, the mounting bolts are fixed by extruding the bushings to deform, and when the air distribution cover 5 needs to be disassembled, the mounting bolts are pulled out upwards with a little force.

In this embodiment, the bottom cover 2 and the lower partition plate 12 are an integral injection molding structure, a first sliding groove 12-1 and a second sliding groove 12-2 are integrally formed on two sides of a gap of the lower partition plate 12, two ends of a housing of the primary filter assembly 6 are respectively located in the first sliding groove 12-1 and the second sliding groove 12-2, that is, two ends of the primary filter assembly 6 are limited by the two sliding grooves. Therefore, after the primary filter assembly 6 is installed in the assembly bin, due to the matching of the two ends of the primary filter assembly 6 and the first sliding groove 12-1 and the second sliding groove 12-2, the accuracy of the loading position of the primary filter assembly 6 is guaranteed.

In this embodiment, the housing 3 is formed by integral injection molding, and the reinforcing rib net 3-2 is integrally formed on the lower surface of the groove by injection molding. The reinforcing rib net 3-2 is used for improving the structural strength of the shell 3, especially the structural strength of the groove part, and preventing the top part of the shell 3 from collapsing or deforming under the action of external force (such as pressing force when the wind division cover 5 is installed).

As shown in fig. 5, the circuit board 13 of the air cleaner is mounted and fixed on the bottom cover 2 outside the lower partition 12, the circuit board 13 is provided with the key 4 for controlling the power switch, and when the housing 3 is assembled with the bottom cover 2, the key 4 is exposed from the key hole formed at the side of the housing 3 for easy operation from the outside.

In this embodiment, an upper partition plate having a contour identical to that of the lower partition plate 12 is integrally injection-molded on the top wall of the housing 3, and after the housing 3 and the bottom cover 2 are assembled, the upper partition plate and the lower partition plate 12 are butted to form a complete partition plate, so as to divide the internal space into an isolated internal space and an isolated external space, and allow air to enter only the internal space without entering the external space.

In this embodiment, a plurality of supporting feet 2-1 are further mounted on the lower surface of the bottom cover 2, the supporting feet 2-1 and the bottom cover 2 are integrally formed through injection molding, a cushion block made of rubber is arranged on the lower portion of each supporting foot 2-1, and the stability of the air purifier during placement can be improved through each supporting foot 2-1 and the cushion block. The outer shell 3 and the bottom cover 2 are fixedly connected in the following way: the top wall of the shell 3 is provided with a plurality of upper connecting columns with threaded holes, the corresponding positions of the bottom cover 2 are provided with a plurality of lower connecting columns 2-2 with threaded holes, when the shell 3 is assembled with the bottom cover 2, the upper connecting columns are in butt joint with the lower connecting columns 2-2, and screws are screwed in from the lower part to fixedly connect the upper connecting columns with the lower connecting columns 2-2.

In this embodiment, a gravity sensor 11 for detecting whether the air purifier is placed in the forward direction is further installed on the bottom cover 2, and the gravity sensor 11 is electrically connected to the circuit board 13. The gravity sensor 11 is also called a gravity sensor, and it uses an elastic sensing element to make a cantilever type displacement device, and uses an energy storage spring made of the elastic sensing element to drive an electric contact, so as to complete the conversion from the gravity change to the electric signal. At present, the gravity sensor is widely applied to products such as smart phones and tablet computers, and the products can detect the change of the posture of the products through the built-in gravity sensor so as to trigger corresponding program response. The gravity sensor 11 in this embodiment does not generate an electric signal when the cleaner is placed in the forward direction, and generates an electric signal to the circuit board 13 when the cleaner is placed in the upside-down state, and the circuit board 13 receives this signal and then cuts off the operation of the fan assembly 14 and the revolver 10 until the posture of the cleaner is restored to the forward direction.

The circuit board 13 comprises a controller unit built based on a PLC chip, a driving unit of the fan assembly 14, a relay control unit of the gyrator 10, a timing unit and a buzzer unit, wherein the controller unit is used for providing a basic control function, the driving unit of the fan assembly 14 is connected with the fan assembly 14 through a lead wire, the relay control unit of the gyrator 10 is connected with the motor 10-2 through the lead wire (the lead wire extends along the surface of the bottom cover 2 and penetrates through a wire hole formed in the bottom edge of the lower partition plate 12, and sealant can be coated on the wire hole), the timing unit is used for measuring the running time of the purifier, and the buzzer unit is used for giving a prompt sound to a user. The keys 4 and the circuit board 13 are integrated together, so that the structure compactness can be improved, and lead wires do not need to be arranged for the keys 4 and the circuit board 13.

In this embodiment, a battery compartment 8 with a battery compartment cover is further integrally injection molded on the bottom cover 2, and a rechargeable battery is disposed in the battery compartment 8 and electrically connected to the circuit board 13. Through built-in rechargeable battery, can make this air purifier self do not rely on the power cord to use, consequently further guaranteed the convenience of use, after filling the electricity, the clarifier can be carried to different occasions and use. The side of the shell 3 can be also provided with a charging interface which is electrically connected with the circuit board 13 and used for charging the rechargeable battery through the charger. Because the battery compartment cover is arranged, the rechargeable battery can be a detachable rechargeable battery, and the rechargeable battery can be detached from the battery compartment 8 for independent charging.

The use mode and the working process are as follows:

opening the assembly bin cover 7, placing the primary filter assembly 6 in the assembly bin opening, and then closing the assembly bin cover 7; opening the air distribution cover 5, and inserting the connecting inserted rod 9-1 of the secondary filtering component 9 into the inserting hole of the connecting seat 10-3 of the gyrator 10 after penetrating through the through window 3-4; then a wind distribution cover 5 is installed;

the air purifier is started through the button 4; the fan assembly 14 is continuously operated to suck the external air into the inner space from the air inlet 1 of the housing 3, and the air is subjected to primary filtering and purifying treatment when passing through the primary filtering assembly 6; then the air is discharged through the air outlet 3-3 and passes through the secondary filtering component 9 to obtain secondary filtering and purifying treatment; finally, the air purified by the two stages is discharged in a distributed manner through the air holes on the air distribution cover 5;

the rotator 10 is started at regular time, a timing unit in the circuit board 13 measures the running time of the purifier, and after a set time interval (such as 1 hour), the rotator 10 is started and drives the secondary filtering component 9 to rotate for a set angle (such as 60 degrees), and then the next position of the fine filtering net 9-4 moves to the upper part of the air outlet 3-3; after the accumulated running time reaches a set value, the circuit board 13 generates a prompt sound through a buzzer to prompt a user to replace the first-stage filtering component 6 and the second-stage filtering component 9.

Claims (10)

1. The utility model provides a portable airtight space air purifier, characterized by: the air purifier comprises a shell (3) with an opening at the bottom and a groove at the top, wherein an air inlet (1) is arranged on the side wall of the shell (3), and the bottom of the groove is a plane and is provided with an air outlet (3-3) and a through window (3-4); a bottom cover (2) is arranged on the bottom opening of the shell (3), an annular lower partition plate (12) with a notch at the side part is arranged on the bottom cover (2), a primary filtering component (6) is arranged on the notch, a component bin opening for dismounting and mounting the primary filtering component (6) is arranged on the bottom cover (2), and a component bin cover (7) is arranged on the component bin opening; a fan assembly (14) and a rotator (10) are mounted on the bottom cover (2), the fan assembly (14) is positioned below the air outlet (3-3), and the rotator (10) is positioned below the through window (3-4); a secondary filtering component (9) is further arranged in the groove, the secondary filtering component (9) comprises a circular base plate (9-3) with a connecting inserted rod (9-1) arranged at the center, an annular fine filtering net (9-4) is arranged on the outer side of the base plate (9-3), the fine filtering net (9-4) is positioned above the air outlet (3-3), and the connecting inserted rod (9-1) penetrates through the through window (3-4) and is connected with the gyrator (10) in an inserting mode; a wind distribution cover (5) with wind holes is also arranged in the groove.

2. The portable closed space air cleaner of claim 1, wherein: the first-level filtering component (6) comprises a shell with an opening on the inner side, an air hole is formed in the outer side wall of the shell, and an HEPA filter screen is installed in the inner cavity of the shell.

3. A portable closed space air cleaner as defined in claim 2, wherein: the gyrator (10) comprises a bottom shell (10-5) fixedly connected with the bottom cover (2), a shaft sleeve (10-1) is arranged on the outer side of the bottom shell (10-5), a worm gear structure is arranged in the bottom shell (10-5) and the shaft sleeve (10-1), the gyrator further comprises a motor (10-2) for driving the worm to rotate, an upper cover (10-4) is installed at the top opening of the bottom shell (10-5), a connecting seat (10-3) with a jack at the center is arranged at the center of the worm gear, and the upper end of the connecting seat (10-3) is exposed out of a window in the center of the upper cover (10-4).

4. A portable closed space air cleaner as defined in claim 3, wherein: the bottom cover (2) and the lower partition plate (12) are of an integral injection molding structure, a first sliding groove (12-1) and a second sliding groove (12-2) which are integrally formed by injection molding are arranged on two sides of a gap of the lower partition plate (12), and two ends of a shell of the primary filtering component (6) are respectively positioned in the first sliding groove (12-1) and the second sliding groove (12-2).

5. The portable closed space air cleaner of claim 4, wherein: an annular inner side supporting ring (9-2) is arranged below the base plate (9-3), an annular outer side supporting ring (9-5) is arranged on the outer edge of the fine filter screen (9-4), and silica gel gaskets are arranged at the bottoms of the inner side supporting ring (9-2) and the outer side supporting ring (9-5).

6. The portable closed space air cleaner of claim 5, wherein: the shell (3) is obtained by integral injection molding, and the lower surface of the groove is integrally provided with the reinforcing rib net (3-2) by injection molding.

7. The portable closed space air cleaner of claim 6, wherein: a circuit board (13) of the air purifier is fixedly arranged on a bottom cover (2) on the outer side of a lower partition plate (12), the circuit board (13) is provided with a key (4) for controlling a power switch, and after a shell (3) is assembled with the bottom cover (2), the key (4) is exposed out of a key hole formed in the side part of the shell (3).

8. The portable closed space air cleaner of claim 7, wherein: an upper partition plate consistent with the outline of the lower partition plate (12) is integrally formed on the top wall of the shell (3) in an injection molding mode, and after the shell (3) and the bottom cover (2) are assembled, the upper partition plate and the lower partition plate (12) are in butt joint to form a complete partition plate, so that the inner space is divided into an isolated inner space and an isolated outer space.

9. The portable closed space air cleaner of claim 8, wherein: still install on bottom cover (2) and be used for detecting whether the air purifier is forward gravity sensor (11) of placing, gravity sensor (11) are connected with circuit board (13) electricity.

10. The portable closed space air cleaner of claim 9, wherein: a battery bin (8) with a battery bin cover is also integrally formed on the bottom cover (2) in an injection molding manner, a rechargeable battery is arranged in the battery bin (8), and the rechargeable battery is electrically connected with the circuit board (13).

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