A portable air filter

Abstract

The present invention discloses a portable air filter, comprising a lower tank body and an upper tank body, wherein an air filter assembly is threadedly connected to the bottom of the lower tank body, an air heating assembly is clamped on the top of the lower tank body, an air humidification assembly is detachably installed between the lower tank body and the upper tank body, a top cover is threadedly connected to the top of the upper tank body, a fine filter assembly is threadedly connected to the inner side of the top cover, an air delivery port is provided on the top cover, an air delivery pipe is threadedly connected to the air delivery port, and a breathing mask is threadedly connected to the air delivery pipe. The present invention is compact in design and easy to carry, and can effectively remove dust particles and pollutants in the air and improve air quality through the air filter assembly and the fine filter assembly, and can adjust air temperature and humidity through the air heating assembly and the air humidification assembly to ensure that the output air temperature and humidity are appropriate, so that users can breathe more comfortably and provide users with a clean and healthy breathing environment.

Description

Technical Field

[0001] The invention relates to the technical field of air filters, in particular to a portable air filter. Background Art

[0002] Rhinitis is a common inflammation of the nasal mucosa, which is mainly caused by viruses, bacteria, allergens (such as dust mites, mold, pet dander, pollen, etc.) and other physical and chemical factors or systemic diseases. Among them, allergic rhinitis is the most common and has a certain genetic tendency. Non-allergic rhinitis includes various types such as vasomotor rhinitis, atrophic rhinitis and hormonal rhinitis caused by environmental irritants (such as chemical gases), temperature changes and other factors.

[0003] With the acceleration of modern urbanization, the problem of air pollution is becoming increasingly serious, causing rhinitis patients to experience symptoms such as sneezing, runny nose, and nasal congestion when exposed to air containing a large amount of pollutants, which seriously affects the patients' quality of life. In order to reduce the direct invasion of pollutants to the nasal cavity, masks have become a commonly used protective tool. However, for people who already have rhinitis, due to the small space of the mask, wearing a mask restricts breathing to a certain extent, especially when they experience aggravated nasal congestion after sneezing, this inconvenience is more obvious. In addition, although the mask can block external pollutants to a certain extent, it cannot solve the problem of rhinitis attacks caused by sudden changes in temperature. Summary of the invention

[0004] The object of the present invention is to provide a portable air filter to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A portable air filter comprises a lower tank body and an upper tank body, wherein an air filter assembly is threadedly connected to the bottom of the lower tank body, an air heating assembly is clamped on the top of the lower tank body, an air humidification assembly is detachably installed between the lower tank body and the upper tank body, a top cover is threadedly connected to the top of the upper tank body, a fine filter assembly is threadedly connected to the inner side of the top cover, an air delivery port is arranged on the top cover, an air delivery pipe is threadedly connected to the air delivery port, and a breathing mask is threadedly connected to the air delivery pipe;

[0007] The air heating component comprises an upper shell and a lower shell of the same length and width, the top of the lower tank body is symmetrically provided with clamping holes, both ends of the lower shell and the upper shell extend outward through the two clamping holes, the two side walls and the bottom surface of the lower shell are respectively abutted against the two side walls of the two clamping holes, the two side walls of the upper shell are respectively abutted against the two side walls of the two clamping holes, and the top of the upper shell is abutted against the bottom of the air humidification component;

[0008] A mounting bracket is provided at the bottom of the lower shell, and a mounting groove is provided at the lower end surface of the mounting bracket, a heating plate is installed in the mounting groove, and a bottom frame with a hollow center is detachably installed at the bottom of the mounting bracket by screws, and the bottom frame is used to support the heating plate, a wiring groove is provided between the upper shell and the lower shell, and a wiring hole connected with the wiring groove is provided on the mounting bracket, and a lower groove connected with the wiring groove is provided at one end of the lower shell extending to the outside of the lower tank body, a control circuit module is installed in the lower groove, a power-on module is provided on the control circuit module, and the power-on module is connected to the outside through the side wall of the lower groove, and the lower shell is also provided with a touch display panel on one side of the lower groove, and a temperature sensor is installed inside the upper tank body, and the temperature sensor and the touch display panel are electrically connected to the control circuit module.

[0009] Furthermore, the lower shell is also provided with a circular ring extending downward, and a support beam for strengthening the structural strength of the circular ring is provided on the lower shell. The bottom of the circular ring is threadedly connected with an air guide cover, and the middle section of the air guide cover is slightly concave inward, forming an hourglass shape, and one end of the air guide cover that is slightly concave inward is located below the heating plate.

[0010] Furthermore, the air filter assembly includes an outer shell, a plurality of fiber hairs are provided on the inner wall of the outer shell, a breathable top cover is installed on the top of the outer shell, a breathable bottom cover is threadedly connected to the bottom of the breathable top cover, a placement cavity for placing activated carbon is reserved between the breathable top cover and the breathable bottom cover, a through hole for inserting a card column is provided on the outer shell and the breathable top cover, and a handle is provided on the breathable top cover.

[0011] Furthermore, an annular inner groove is provided on the outer wall of the breathable top cover, and a sealing ring abutting against the inner wall of the shell is fixedly mounted on the inner groove.

[0012] Furthermore, the air humidification component includes an upper cover and a lower cover, the upper cover and the lower cover are provided with corresponding air holes, the lower cover is provided with a placement groove 1, the placement groove 1 is symmetrically provided with positioning blocks on the outer periphery of the air hole, both of the two positioning blocks are provided with sockets, and the lower end surface of the upper cover is provided with plug blocks corresponding to the two sockets.

[0013] Furthermore, the placement groove 1 is symmetrically provided with a support ring on the outer periphery of the air vent, a water-absorbent cloth is placed on the support ring, the water-absorbent cloth is provided with a through hole 2 for passing two positioning blocks, a water storage tank is provided on one side of the placement groove 1, one end of the water-absorbent cloth extends into the water storage tank, the upper cover is provided with a water inlet corresponding to the water storage tank, and a sealing cover is threadedly connected to the water inlet.

[0014] Furthermore, a fixing block is provided at one corresponding end of the upper cover and the lower cover, a locking block 1 is provided at the outer side of the bottom of the upper tank body, a through hole 3 is provided on the locking block 1 and connected to the two fixing blocks, a supporting block 1 is provided at the outer side of the top of the lower tank body, a positioning threaded column 1 is provided on the supporting block 1 and extends upward through the through hole 3, the top of the positioning threaded column 1 is threadedly connected to the nut, a locking block 2 is provided on the side of the upper tank body opposite to the locking block 1, a through hole 4 is connected on the locking block 2, the upper shell and the lower shell, a supporting block 2 is provided on the top of the lower tank body opposite to the support block 1, a positioning threaded column 2 is provided on the supporting block 2 and extends upward through the through hole 4, the top of the positioning threaded column 2 is threadedly connected to the nut, and a water retaining ring is provided on the outer edge of the placement groove 1 located at the through hole 3.

[0015] Furthermore, the fine filter assembly includes a base frame with a hollow center, the base frame is provided with a second placement slot, a filter screen is placed on the second placement slot, a central hollow pressure plate is placed on the filter screen, the pressure plate is fixedly connected to the base frame by passing the filter screen through screws, and the pressure plate is provided with a handle two.

[0016] Beneficial effects of the present invention:

[0017] The present invention is compact in design and easy to carry. It can effectively remove dust particles and pollutants in the air and improve air quality through the air filtering component and the fine filtering component. It can adjust the air temperature and humidity through the air heating component and the air humidifying component to ensure that the output air temperature and humidity are appropriate, making the user breathe more comfortably and providing the user with a clean and healthy breathing environment. The detachable air humidifying component allows the user to choose to install or remove it according to the current air humidity.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : The overall structure diagram of the present invention.

[0020] Figure 2 : The overall exploded view of the present invention.

[0021] Figure 3 : An overall side sectional view of the present invention.

[0022] Figure 4 : Exploded view of the air filter assembly of the present invention.

[0023] Figure 5 : A cross-sectional view of an air filter assembly of the present invention.

[0024] Figure 6 : A partial side sectional view of the present invention.

[0025] Figure 7 : A cross-sectional view of the air heating component of the present invention.

[0026] Figure 8 : The air humidification component of the present invention explodes Figure 1 .

[0027] Fig. 9 : The air humidification component of the present invention explodes Figure 2 .

[0028] Fig.10 : Exploded view of the fine filter assembly of the present invention.

[0029] Figure numerals: 1, lower tank body; 2, upper tank body; 3, air filter assembly; 4, air heating assembly; 5, air humidification assembly; 6, top cover; 7, fine filter assembly; 8, air pipe; 9, breathing mask; 11, clamp hole; 12, support block one; 13, positioning thread column one; 14, support block two; 15, positioning thread column two; 21, locking block one; 22, through hole three; 23, locking block two; 24, through hole four; 25, air delivery port; 31, shell; 32, fiber hair; 33, breathable top cover; 34, breathable bottom cover; 35, placement cavity; 36, activated carbon; 37, through hole one; 38, clamp column; 39, handle one; 331, inner groove; 332, sealing ring; 41, upper shell; 42, lower shell; 43, mounting bracket; 43 1. Installation slot; 432. Heater; 433. Bottom frame; 434. Wiring hole; 44. Wiring slot; 45. Lower groove; 451. Control circuit module; 452. Power module; 453. Touch display panel; 454. Temperature sensor; 46. Ring; 461. Support beam; 462. Air guide cover; 51. Upper cover; 52. Lower cover; 53. Air vent; 511. Insert block; 512. Water inlet; 513. Sealing cover; 521. Placement slot one; 522. Positioning block; 523. Insert hole; 54. Support ring; 55. Absorbent cloth; 551. Through hole two; 552. Water storage tank; 56. Fixing block; 57. Water retaining ring; 71. Base frame; 72. Placement slot two; 73. Filter; 74. Press plate; 75. Handle two. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Please refer to Figure 1-10 ;

[0032] A portable air filter comprises a lower tank body 1 and an upper tank body 2. An air filter assembly 3 is threadedly connected to the bottom of the lower tank body 1. The air filter assembly 3 can effectively block and filter out most of the dust particles in the air, ensuring the cleanliness of the air entering the lower tank body 1. An air heating assembly 4 is clamped on the top of the lower tank body 1. The air heating assembly 4 can increase the temperature of the air after preliminary filtration, so that the output air reaches a comfortable temperature suitable for the user to breathe. In order to prevent the user from inhaling too dry air, an air humidification assembly 5 is detachably installed between the lower tank body 1 and the upper tank body 2. The air humidification assembly 5 is used to increase the air humidity, so that the user can breathe more comfortably. When the air humidity is high, the air humidification assembly 5 can be removed, and the upper tank body 2 and the lower tank body 1 can be directly connected together. A top cover 6 is threadedly connected to the top of the upper tank body 2, and the inner side of the top cover 6 has a threaded A fine filter component 7 is connected, and the air that has undergone primary filtration, heating and humidification treatment is further purified by the fine filter component 7. An air delivery port 25 is provided on the top cover 6, and an air delivery pipe 8 is threadedly connected to the air delivery port 25, and a breathing mask 9 is threadedly connected to the air delivery pipe 8. When the user wears the breathing mask 9, fresh air that has undergone multi-step treatment (including primary filtration, temperature regulation, humidity adjustment and secondary fine filtration) can be directly inhaled. Taking into account the needs of patients with rhinitis, the filter not only optimizes the quality of the air, but also leaves a larger unused space in the upper tank body 2 for storing air to avoid difficulty in breathing due to small space. In addition, due to the fluidity of the air, the filter can automatically purify the air even when not in use, and is ready to provide users with high-quality air at any time to avoid long-term inhalation of air containing a large amount of pollutants, thereby ensuring the health of the user.

[0033] The air heating component 4 includes an upper shell 41 and a lower shell 42 of the same length and width. The top of the lower tank body 1 is symmetrically provided with clamping holes 11. Both ends of the lower shell 42 and the upper shell 41 extend outward through the two clamping holes 11. The two side walls and the bottom surface of the lower shell 42 are respectively abutted against the inner walls of the two clamping holes 11. The two side walls of the upper shell 41 are respectively abutted against the two side walls of the two clamping holes 11. The top of the upper shell 41 is abutted against the bottom of the air humidification component 5, thereby firmly fixing the air heating component 4 to prevent it from rotating at will.

[0034] A mounting bracket 43 is provided at the bottom of the lower shell 42, and a mounting groove 431 is provided at the lower end surface of the mounting bracket 43. A heating plate 432 is installed in the mounting groove 431 for heating the air flowing through it to a suitable temperature. A bottom frame 433 with a hollow center is detachably installed at the bottom of the mounting bracket 43 by screws. The bottom frame 433 is used to support the heating plate 432. The hollow bottom frame 433 facilitates full contact between the air and the heating plate 432 to achieve a heating effect, while preventing the heating plate 432 from falling.

[0035] A wiring groove 44 is provided between the upper shell 41 and the lower shell 42, a wiring hole 434 connected to the wiring groove 44 is provided on the mounting frame 43, and a lower groove 45 connected to the wiring groove 44 is provided at one end of the lower shell 42 extending to the outside of the lower tank body 1, and a control circuit module 451 is installed in the lower groove 45, and the cable of the heating plate 432 passes through the wiring hole 434 and the wiring groove 44 in turn, and is finally electrically connected to the control circuit module 451 in the lower groove 45, and a power-on module 452 is provided on the control circuit module 451, and the power-on module 452 passes through the side wall of the lower groove 45 and is connected to the outside. Preferably, the power-on module 452 is a commonly used TYPE-C interface, which is convenient for users to use a power bank for power when going out, ensuring that users can breathe warm air even when they are outside. The lower shell 42 is located in the lower groove 45. A touch display panel 453 is also provided on the side, and a temperature sensor 454 is fixedly installed inside the upper tank body 2. The temperature sensor 454 and the touch display panel are electrically connected to the control circuit module 451. The temperature sensor 454 is installed near the fine filter component 7. Since the fine filter component 7 is close to the gas inlet 25, the temperature sensor 454 can accurately detect the temperature of the air to be output. The data collected by the temperature sensor 454 is transmitted to the control circuit module 451, and then transmitted to the touch display panel 453 by the control circuit module 451. The user can observe the temperature reading on the touch display panel 453 and adjust the working temperature of the heating plate 432 by touching the panel to achieve a temperature suitable for breathing, thereby ensuring that the user can adjust the air temperature as needed at any time and enjoy a comfortable breathing experience.

[0036] In order to prevent the filter housing 31 from cooling down due to the influence of external cold air, thereby causing the temperature of the heated air inside to drop, the upper tank body 2 and the lower tank body 1 are made of thermal insulation materials to maintain the temperature of the heated air.

[0037] In this embodiment, a circular ring 46 extending downward is further provided on the lower shell 42, and a support beam 461 for strengthening the structural strength of the circular ring 46 is provided on the lower shell 42. An air guide cover 462 is threadedly connected to the bottom of the circular ring 46. The middle section of the air guide cover 462 is slightly concave inward and has an hourglass shape. One end of the air guide cover 462 that is slightly concave inward is located below the heating plate 432. The air flow path is optimized by the air guide cover 462, and all filtered air can be guided to the heating plate 432, thereby improving the air heating effect, avoiding the problem of uneven cold and hot caused by insufficient contact between the air and the heating plate 432, and improving the overall heating efficiency. The end of the air guide cover 462 abuts against the interior of the lower tank body 1 to prevent the air heating component 4 from being accidentally pushed.

[0038] In this embodiment, the air filter assembly 3 includes an outer shell 31, and a plurality of fiber hairs 32 are arranged on the inner wall of the outer shell 31. The plurality of fiber hairs 32 form a structure imitating nose hair. The fiber hairs 32 can effectively prevent dust particles and impurities such as hair in the air from entering the lower tank body 1. A breathable top cover 33 is installed on the top of the outer shell 31, and a breathable bottom cover 34 is threadedly connected to the bottom of the breathable top cover 33. A placement cavity 35 for placing activated carbon 36 is reserved between the breathable top cover 33 and the breathable bottom cover 34. Preferably, the activated carbon 36 can be wrapped in a non-woven bag, and the activated carbon 36 absorbs odors in the air. A through hole 37 for inserting a card column 38 is provided on the outer shell 31 and the breathable top cover 33. By inserting the card column into the outer shell 31 and the breathable The outer shell 31 and the breathable top cover 33 are fixed together by a through hole 37 of the top cover 33. A handle 39 is provided on the breathable top cover 33. The user can pull out the breathable bottom cover 34 by grabbing the handle 39 to facilitate cleaning or replacement of the activated carbon 36. Specifically, when it is necessary to disassemble, clean or replace the activated carbon 36, first unscrew the outer shell 31, and then use an appropriate tool to push the post 38 out of the through hole 37. Then, grab the handle 39 to easily pull out the breathable top cover 33 together with the breathable bottom cover 34. Finally, the breathable bottom cover 34 can be separated from the breathable top cover 33 by rotating it. At this time, the activated carbon 36 can be easily replaced to ensure that the filter always maintains the best working condition.

[0039] In addition, an annular inner groove 331 is provided on the outer wall of the breathable top cover 33, and a sealing ring 332 is fixedly installed on the inner groove 331 to abut against the inner wall of the outer shell 31, thereby effectively sealing the gap between the breathable top cover 33 and the outer shell 31, ensuring that the air must be filtered by the activated carbon 36 before entering the next processing step, preventing untreated air from directly entering the subsequent process through the gap, and ensuring the filtering effect and air quality.

[0040] In this embodiment, the air humidification component 5 includes an upper cover 51 and a lower cover 52. The upper cover 51 and the lower cover 52 are provided with corresponding air holes 53 for air to flow through. The lower cover 52 is provided with a placement groove 521. The placement groove 521 is located on the outer periphery of the air hole 53 and symmetrically provided with positioning blocks 522. Both positioning blocks 522 are provided with plug holes 523. The lower end surface of the upper cover 51 is provided with two plug blocks 511 corresponding to the two plug holes 523. By inserting the two plug blocks 511 into the corresponding plug holes 523, the horizontal movement of the upper cover 51 and the lower cover 52 can be limited to prevent the upper cover 51 and the lower cover 52 from relative displacement.

[0041] In the previous embodiment, the placement groove 521 is located on the outer periphery of the air vent 53 and is symmetrically provided with a support ring 54, on which a water-absorbing cloth 55 is placed, and on which a through hole 551 for passing through the two positioning blocks 522 is provided, and the through hole 551 is used to limit the movement of the waterproof cloth in the horizontal direction to ensure that it will not shift during use, and a water storage tank 552 is provided on one side of the placement groove 521, and one end of the water-absorbing cloth 55 extends into the water storage tank 552, and the water-absorbing cloth 55 can directly absorb the moisture in the water storage tank 552, and the upper cover 51 is provided with a water inlet 512 corresponding to the water storage tank 552, and a sealing cover 513 is threadedly connected to the water inlet 512. When adding water, just turn and open the sealing cover 513. It should be noted that since the water volume required for the water storage tank 552 is not large, you can use a syringe or a measuring cup to measure the volume and pour it in to avoid adding too much water. In addition, the support ring 54 and the positioning block 522 are an integrated structure, which can play a role in blocking water and prevent moisture from flowing out of the air vent 53 when too much water is added. When water is added to the water storage tank 552, the absorbent cloth 55 will absorb the moisture and become moist. When the air after preliminary filtration and heating flows through the moist absorbent cloth 55, the humidity will increase significantly to avoid the air being too dry. In this way, the air finally output to the user is not only warm, but also has a suitable humidity, which improves the overall breathing experience.

[0042] In the previous embodiment, a fixing block 56 is provided at one end corresponding to the upper cover 51 and the lower cover 52, a locking block 21 is provided on the outer side of the bottom of the upper tank body 2, and a through hole 22 is provided on the locking block 1 and the two fixing blocks 56, and a support block 12 is provided on the outer side of the top of the lower tank body 1, and a positioning thread column 13 extending upward through the through hole 22 is provided on the support block 12, and the top of the positioning thread column 13 is threadedly connected with the nut, and the lower end surface of the nut abuts against the top of the locking block 21, and a locking block 23 is provided on the side of the upper tank body 2 opposite to the locking block 21, and a connecting through hole 4 24 is provided on the locking block 23, the upper shell 41 and the lower shell 42, and the lower tank body 1 A support block 2 14 is provided on the top of the support block 12 on the side opposite to the support block 1. A positioning threaded column 2 15 is provided on the support block 14 and extends upward through the through hole 4 24. The top of the positioning threaded column 15 is threadedly connected to the nut, and the lower end face of the nut abuts against the top of the locking block 23. Through this installation method, the lower tank body 1, the air humidification component 5 and the upper tank body 2 are locked together. When the air humidity is high, the user can easily remove the air humidification component 5 to adapt to different environmental requirements, and it is also convenient for maintenance and cleaning. In addition, a water retaining ring 57 is provided on the outer edge of the placement groove 1 521 located on the through hole 3 22 to prevent water from flowing out of the through hole 4 24.

[0043] In this embodiment, the fine filter assembly 7 includes a base frame 71 with a hollow center, and a placement slot 72 is provided on the base frame 71. A filter screen 73 is placed on the placement slot 72. The function of the filter screen 73 is to perform secondary filtration on the air to be output to ensure the cleanliness of the air. Preferably, the filter screen 73 adopts a HEPA filter screen 73, and a central hollow pressure plate 74 is placed on the filter screen 73. The pressure plate 74 is fixedly connected to the base frame 71 by using screws to penetrate the filter screen 73 to ensure that the filter screen 73 will not shift or loosen, and maintain a long-term stable working state. A handle 75 is provided on the pressure plate 74 to facilitate the user to unlock the pressure plate 74 and then pull it out.

[0044] In addition, each component of the air filter can be disassembled, which is convenient for users to clean and maintain.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A portable air filter, comprising a lower tank body (1) and an upper tank body (2), characterized in that: The bottom of the lower tank body (1) is threadedly connected to an air filter assembly (3), the top of the lower tank body (1) is clamped with an air heating assembly (4), an air humidification assembly (5) is detachably installed between the upper tank body (1) and the lower tank body (1), the top of the upper tank body (2) is threadedly connected to a top cover (6), the inner side of the top cover (6) is threadedly connected to a fine filter assembly (7), the top cover (6) is provided with an air delivery port (25), the air delivery port (25) is threadedly connected to an air delivery pipe (8), and the air delivery pipe (8) is threadedly connected to a breathing mask (9); The air heating component (4) comprises an upper shell (41) and a lower shell (42) of the same length and width; the top of the lower tank body (1) is symmetrically provided with clamping holes (11); both ends of the lower shell (42) and the upper shell (41) extend outward through the two clamping holes (11); the two side walls and the bottom surface of the lower shell (42) respectively abut against the two side walls of the two clamping holes (11); the two side walls of the upper shell (41) respectively abut against the two side walls of the two clamping holes (11); and the top of the upper shell (41) abuts against the bottom of the air humidification component (5); A mounting frame (43) is provided at the bottom of the lower shell (42), a mounting groove (431) is provided at the lower end surface of the mounting frame (43), a heating plate (432) is installed in the mounting groove (431), a bottom frame (433) with a hollow center is detachably installed at the bottom of the mounting frame (43) by means of screws, the bottom frame (433) is used to support the heating plate (432), a wiring groove (44) is provided between the upper shell (41) and the lower shell (42), a wiring hole (434) connected to the wiring groove (44) is provided on the mounting frame (43), and the lower shell (42) extends to the outside of the lower tank body (1). A lower groove (45) communicating with the wiring groove (44) is provided at one end, a control circuit module (451) is installed in the lower groove (45), a power-on module (452) is provided on the control circuit module (451), the power-on module (452) passes through the side wall of the lower groove (45) and communicates with the outside, the lower shell (42) is also provided with a touch display panel (453) located on one side of the lower groove (45), a temperature sensor (454) is installed inside the upper tank body (2), and the temperature sensor (454) and the touch display panel (453) are electrically connected to the control circuit module (451).

2. A portable air filter according to claim 1, characterized in that: The lower shell (42) is also provided with a circular ring (46) extending downwards, and the lower shell (42) is provided with a support beam (461) for strengthening the structural strength of the circular ring (46). The bottom of the circular ring (46) is threadedly connected with an air guide cover (462), and the middle section of the air guide cover (462) is slightly concave inwards and presents an hourglass shape. One end of the air guide cover (462) that is slightly concave inwards is located below the heating plate (432).

3. A portable air filter according to claim 1, characterized in that: The air filter assembly (3) comprises a shell (31), the inner wall of the shell (31) is provided with a plurality of fiber hairs (32), a breathable top cover (33) is installed on the top of the shell (31), a breathable bottom cover (34) is threadedly connected to the bottom of the breathable top cover (33), a placement cavity (35) for placing activated carbon (36) is reserved between the breathable top cover (33) and the breathable bottom cover (34), a through hole (37) for inserting a clamping column (38) is provided on the shell (31) and the breathable top cover (33), and a handle (39) is provided on the breathable top cover (33).

4. A portable air filter according to claim 3, characterized in that: An annular inner groove (331) is provided on the outer wall of the air-permeable top cover (33), and a sealing ring (332) abutting against the inner wall of the outer shell (31) is fixedly mounted on the inner groove (331).

5. A portable air filter according to claim 1, characterized in that: The air humidifying component (5) comprises an upper cover (51) and a lower cover (52), wherein the upper cover (51) and the lower cover (52) are provided with corresponding air holes (53), the lower cover (52) is provided with a placement groove (521), the placement groove (521) is symmetrically provided with positioning blocks (522) on the outer periphery of the air hole (53), the two positioning blocks (522) are both provided with plug holes (523), and the lower end surface of the upper cover (51) is provided with plug blocks (511) corresponding to the two plug holes (523).

6. A portable air filter according to claim 5, characterized in that: The placement groove (521) is located on the outer periphery of the air vent (53) and is symmetrically provided with a support ring (54); a water-absorbing cloth (55) is placed on the support ring (54); a through hole (551) is provided on the water-absorbing cloth (55) for passing through two positioning blocks (522); a water storage tank (552) is provided on one side of the placement groove (521); one end of the water-absorbing cloth (55) extends into the water storage tank (552); a water inlet (512) corresponding to the water storage tank (552) is provided on the upper cover (51); a sealing cover (513) is threadedly connected to the water inlet (512).

7. A portable air filter according to claim 6, characterized in that: A fixing block (56) is provided at one end of the upper cover (51) and the lower cover (52), respectively. A locking block (21) is provided on the outer side of the bottom of the upper tank body (2). A through hole (22) is provided on the locking block (21) and the two fixing blocks (56) and is connected. A supporting block (12) is provided on the outer side of the top of the lower tank body (1). A positioning threaded column (13) is provided on the supporting block (12) and extends upward through the through hole (22). The top of the positioning threaded column (13) is threadedly connected to a nut. The upper tank body (2) is located at the locking block ( A locking block 2 (23) is provided on the side opposite to the supporting block 1 (21), and a communicating through hole 4 (24) is provided on the locking block 2 (23), the upper shell (41) and the lower shell (42), and a supporting block 2 (14) is provided on the top of the lower tank body (1) on the side opposite to the supporting block 1 (12), and a positioning threaded column 2 (15) is provided on the supporting block 2 (14) and extends upward through the through hole 4 (24), and the top of the positioning threaded column 2 (15) is threadedly connected to a nut, and a water retaining ring (57) is provided on the outer edge of the placement groove 1 (521) located on the through hole 3 (22).

8. A portable air filter according to claim 1, characterized in that: The fine filter assembly (7) comprises a centrally hollowed-out bottom frame (71), the bottom frame (71) being provided with a second placement slot (72), a filter screen (73) being placed on the second placement slot (72), a centrally hollowed-out pressing plate (74) being placed on the filter screen (73), the pressing plate (74) being fixedly connected to the bottom frame (71) by passing through the filter screen (73) with screws, and a second handle (75) being provided on the pressing plate (74).

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