A portable air filtration device

Abstract

The application relates to a portable air filtering device, which comprises an upper cylinder body and a lower cylinder body, a driving motor is arranged in the lower cylinder body, a first fan, a reflux box, a gas compression turbine and a second fan are sequentially sleeved on the output shaft of the driving motor in a downward direction, the first fan, the reflux box and the second fan are all transmissionally connected with the output shaft of the driving motor through a planetary gear transmission, a filtering ring pipe is sleeved between the lower edge of the upper cylinder body and the upper edge of the lower cylinder body; the first fan, the reflux box, the gas compression turbine and the second fan are driven to rotate by the driving motor, air filtering is completed through the filtering ring pipe; the air pressure is increased through the gas compression turbine, the efficiency of air passing through the filtering ring pipe is improved, centrifugal force generated when the gas compression turbine rotates surrounds the periphery, 360-degree air filtering without dead angle is realized, the first fan rotates to clean the impurities on the inner side of the second filter cotton, and the second filter cotton is prevented from being blocked by the impurities to affect the air filtering effect.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of air filtration, and particularly relates to a portable air filtration device. BACKGROUND

[0002] With the deterioration of the environment, the air quality becomes poor, and carbon neutralization air filtration devices are installed in some places or buildings to purify the air. However, the filter screen in the air purification device will be blocked after long-term use, affecting the purification efficiency of the air purification device. The carbon dioxide adsorbent is easy to be blocked by the filter screen, and the carbon dioxide absorption efficiency is affected after long-term use. A carbon neutralization air filtration device is disclosed in Chinese Patent No. 202222582641.5. The air is quickly sent into the air inlet pipe by the ventilation fan, then the large particles in the air are filtered by the filter screen, and then the carbon dioxide adsorbent is used for carbon neutralization. The purified air is sent out from the air outlet pipe. Although it has a certain convenience, the filter needs to be cleaned after long-term use, the maintenance cost is high, the efficiency is affected, and on the other hand, the existing air filtration device is too large to be carried, and it is difficult to meet the use requirements of different areas.

[0003] In view of the deficiencies in the prior art, further improvement is needed. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a portable air filtration device to solve the above problems.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a portable air filtration device, comprising an upper cylinder and a lower cylinder, the upper and lower ends of the upper cylinder and the lower cylinder are open, and the lower end of the upper cylinder and the upper end of the lower cylinder are both diffusion-shaped ports, vertical support rods are evenly distributed between the lower end of the upper cylinder and the upper edge of the lower cylinder, the upper end of the vertical support rod is fixedly connected with the lower end of the upper cylinder, and the lower end of the vertical support rod is fixedly connected with the lower edge of the upper end of the lower cylinder, a drive motor is arranged in the lower cylinder, the central axis of the output shaft of the drive motor coincides with the central axis of the lower cylinder and is vertically upward, a first fan, a reflux box, a gas compressor turbine and a second fan are sequentially sleeved on the output shaft of the drive motor from bottom to top, wherein the lower end of the reflux box is open, the lower side of the second fan is fixedly connected with the gas compressor turbine, and the first fan, the reflux box and the second fan are all drivingly connected with the output shaft of the drive motor through a planetary gear transmission, wherein the drive motor, the planetary gear transmission in the middle and the lower part are fixedly connected with the inner wall of the lower cylinder through a horizontal support rod, and the upper planetary gear transmission is fixedly connected with the upper cylinder through a horizontal support rod.

[0006] The planetary gear transmission includes a housing, a sun gear, planet gears, and a planet carrier. The sun gear and planet gears are both housed within the housing, with the sun gear located in the center. The planet gears are arranged in a ring around the side of the sun gear and mesh with both the sun gear and the housing. A planet carrier is rotatably connected to the housing, and the planet gear shafts are rotatably connected to the planet carrier. The middle of the planet carrier, the middle of the sun gear, and the middle of the housing are interconnected, facilitating the passage of the drive motor's output shaft. The sun gears of the planetary gear transmission located in the middle and lower positions are fixedly connected to the drive motor's output shaft. The planet carrier of the planetary gear transmission located in the upper position is fixedly connected to the drive motor's output shaft. The planets located in the lower position... The planetary carrier of the gear transmission is fixedly connected to the first fan. A first M-shaped carrier is fixed on the planetary carrier of the planetary gear transmission in the middle position. The end of the first M-shaped carrier away from the planetary carrier is fixedly connected to the lower edge of the return box. The sun gear of the planetary gear transmission in the upper position is fixedly connected to the second fan. Utilizing the characteristics of planetary gears, the first fan and the return box rotate at a slower speed compared to the output shaft of the drive motor, while the first fan and the compressor turbine rotate at a faster speed compared to the output shaft of the drive motor. The first fan and the return box are driven by two planetary gear transmissions, which makes it easy to adjust the transmission ratio of the corresponding planetary gear transmissions to achieve the speed requirements of the first fan and the return box.

[0007] The lower cylinder is provided with a second M-shaped frame at its lower end. A handle is provided in the middle of the second M-shaped frame, and a positioning ring is fixed to the outer end of the second M-shaped frame. The positioning ring is threadedly connected to the lower port of the lower cylinder for easy disassembly. A first filter cotton is placed on the upper side of the second M-shaped frame. A positioning plate is provided on the upper edge of the lower cylinder, and a support plate is provided on the lower edge of the lower cylinder. Four support legs are evenly distributed on the lower side of the support plate for easy placement. A filter ring tube is sleeved between the lower edge of the upper cylinder and the upper edge of the lower cylinder. The lower edge of the filter ring tube is in contact with the positioning plate. Multiple filter layers are concentrically distributed inside the positioning ring tube, and a second filter cotton is provided on the inner wall of the positioning ring tube. The second filter cotton is attached to the outer side of the vertical support rod. Multiple return channels are evenly distributed on the upper side of the return box. The lower port of the return channel is connected to the return box, and the upper port of the return channel points to the first filter cotton.

[0008] Preferably, the upper cylinder is provided with a handle at its upper end for easy carrying.

[0009] Preferably, a filter screen is provided at the upper port of the upper cylinder.

[0010] Preferably, a fairing is fixed to the upper side of the planetary gear transmission located in the upper position.

[0011] The beneficial effects of the present application are: the first fan, the backflow box, the air compressor turbine and the second fan are driven to rotate by the driving motor, under the action of the planetary gear transmission, on the one hand, the second fan is used to make the air from the outside enter from the upper end of the upper cylinder, after being compressed and pressurized by the air compressor turbine, under the action of the centrifugal force generated when the air compressor turbine rotates, the air is thrown to the filter ring pipe and the air filtration is completed through the filter ring pipe; and the air pressure is improved by the air compressor turbine, under the action of the air pressure difference between the inside and outside of the upper cylinder, the efficiency of the air passing through the filter ring pipe is improved, that is, the efficiency of the air filtration is improved; in addition, the centrifugal force generated when the air compressor turbine rotates surrounds the periphery, ensures that the air after filtration blows uniformly to the periphery, and realizes 360-degree air filtration without dead angle; the backflow box rotates to adjust the position of the backflow channel, and the first fan rotates to make the air from the outside pass through the filter ring pipe in the reverse direction, adsorb the impurities inside the second filter cotton to the first filter cotton, realize the cleaning of the impurities on the second filter cotton, and avoid the second filter cotton being blocked by the impurities to affect the air filtration effect. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is the external structure diagram of the main body of the present application;

[0013] Fig. 2 is the internal structure diagram of the main body of the present application;

[0014] Fig. 3 is the structure diagram of the planetary gear transmission of the present application.

[0015] In the drawing, 1 is the upper cylinder; 101 is the handle; 2 is the lower cylinder; 201 is the positioning plate; 202 is the support plate; 203 is the supporting leg; 3 is the vertical supporting rod; 4 is the driving motor; 5 is the first fan; 6 is the backflow box; 601 is the backflow channel; 7 is the air compressor turbine; 8 is the second fan; 9 is the planetary gear transmission; 10 is the horizontal supporting rod; 11 is the box body; 12 is the sun gear; 13 is the planet gear; 14 is the planet carrier; 15 is the first meter-shaped frame; 16 is the fairing; 17 is the second meter-shaped frame; 1701 is the handle; 1702 is the positioning ring; 18 is the first filter cotton; 19 is the filter ring pipe; 20 is the second filter cotton; 21 is the filter screen. DETAILED DESCRIPTION

[0016] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0017] As Figs. 1-3As shown, a portable air filter device includes an upper cylinder 1 and a lower cylinder 2, the upper cylinder 1 and the lower cylinder 2 are open at both ends, and the lower end of the upper cylinder 1 and the upper end of the lower cylinder 2 are both diffusion-shaped ports, and the vertical support rods 3 are evenly distributed between the lower end of the upper cylinder 1 and the upper edge of the lower cylinder 2, the upper end of the vertical support rod 3 is fixedly connected with the lower end of the upper cylinder 1, and the lower end of the vertical support rod 3 is fixedly connected with the lower edge of the upper end of the lower cylinder 2, the drive motor 4 is arranged in the lower cylinder 2, the output shaft of the drive motor 4 is coaxial with the central axis of the lower cylinder 2 and vertically upward, the output shaft of the drive motor 2 is sequentially sleeved with the first fan 5, the return box 6, the air turbine 7 and the second fan 8 from bottom to top, wherein the lower end of the return box 6 is open, the lower side of the second fan 8 is fixedly connected with the air turbine 7, and the first fan 5, the return box 6 and the second fan 8 are all drivingly connected with the output shaft of the drive motor through the planetary gear transmission 9, wherein the drive motor 4, the planetary gear transmission 9 in the middle and below and the inner wall of the lower cylinder 2 are fixedly connected with the lower cylinder 2 through the horizontal support rod 10, and the planetary gear transmission 9 above is fixedly connected with the upper cylinder 1 through the horizontal support rod 10.

[0018] In this embodiment, the planetary gear transmission 9 includes a box body 11, a sun gear 12, a planet gear 13 and a planet carrier 14, wherein the sun gear 12 and the planet gear 13 are arranged in the box body 11, the sun gear 12 is located in the middle, the planet gear 13 is annularly distributed on the side surface of the sun gear 12, and the planet gear 13 is respectively engaged with the sun gear 12 and the box body 11, the box body 11 is rotatably connected with the planet carrier 14, the rotating shaft of the planet gear 13 is rotatably connected with the planet carrier 14, and the planet carrier 14, the sun gear 12 and the box body 11 in the middle are through, so that the output shaft of the drive motor 4 can pass through, wherein the sun gear 12 of the planetary gear transmission 9 in the middle and below is fixedly connected with the output shaft of the drive motor 4, the planet carrier 14 of the planetary gear transmission 9 above is fixedly connected with the output shaft of the drive motor 4, the planet carrier 14 of the planetary gear transmission 9 below is fixedly connected with the first fan 5, the first meter-shaped frame 15 is fixedly connected with the planet carrier 14 of the planetary gear transmission 9 in the middle, one end of the first meter-shaped frame 15 away from the planet carrier 14 is fixedly connected with the lower edge of the return box 6, the sun gear 12 of the planetary gear transmission 9 above is fixedly connected with the second fan 8, by using the characteristics of the planetary gear, the first fan 5 and the return box 6 rotate at a lower speed than the output shaft of the drive motor 4, and the first fan 8 and the air turbine 7 rotate at a higher speed than the output shaft of the drive motor 4, and the first fan 5 and the return box 6 are driven by two planetary gear transmissions 9, so as to adjust the transmission ratio of the corresponding planetary gear transmission 9 respectively to realize the speed requirement of the first fan 5 and the return box 6.

[0019] In the embodiment, the lower end of the lower cylinder 2 is provided with a second meter-shaped frame 17, the middle of the second meter-shaped frame 17 is provided with a handle 1701, the outer end of the second meter-shaped frame 17 is fixed with a positioning ring 1702, the positioning ring 1702 is threadedly connected with the lower end of the lower cylinder 2, which is convenient for disassembly, and the upper side of the second meter-shaped frame 17 is placed with a first filter cotton 18, the upper edge of the lower cylinder 2 is provided with a positioning plate 201, and the lower edge of the lower cylinder 2 is provided with a support plate 202, the lower side of the support plate 202 is uniformly distributed with four supporting legs 203, the upper edge of the lower cylinder 2 is sleeved with a filter ring pipe 19 between the lower edge of the upper cylinder 1 and the upper edge of the lower cylinder 2, the lower edge of the filter ring pipe 19 is in contact with the positioning plate 201, a plurality of filter layers are concentrically distributed in the positioning ring pipe 19, and the inner wall of the positioning ring pipe 19 is provided with a second filter cotton 20, and the second filter cotton 20 is attached to the outer side of the vertical supporting rod 3, and the upper side of the reflux box 6 is uniformly distributed with a plurality of reflux channels 601, the lower end of the reflux channel 601 is communicated with the reflux box 6, and the upper end of the reflux channel 601 is directed to the first filter cotton 18.

[0020] In the embodiment, the upper end of the upper cylinder 1 is provided with a handle 101, which is convenient for carrying.

[0021] In the embodiment, the upper end of the upper cylinder 1 is provided with a filter screen 21.

[0022] In the embodiment, the upper side of the planetary gear transmission 9 located in the upper position is fixed with a fairing 16.

[0023] The working principle of the application is as follows: when the application is used, the driving motor 4 is started, the first fan 5, the reflux box 6, the air compressor turbine 7 and the second fan 8 are driven to rotate by the driving motor 4, under the action of the planetary gear transmission 9, the rotating speed of the second fan 8 is equal to the rotating speed of the air compressor turbine 7, which is greater than the rotating speed of the first fan 5, which is greater than the rotating speed of the reflux box 6, under the action of the second fan 8, the air from the outside enters the upper end of the upper cylinder 1, the air entering the upper cylinder 1 is compressed and pressurized by the air compressor turbine 7, and is thrown to the filter ring pipe 19 under the centrifugal force generated by the rotation of the air compressor turbine 7, the impurities in the air are filtered by the second filter cotton 20, and then are filtered by the filter ring pipe 19 and discharged to the outside, on the other hand, the reflux box 6 rotates, the position of the reflux channel 601 is adjusted, and the first fan 5 rotates, so that the outside air flows in the reverse direction through the filter ring pipe 19, the impurities inside the second filter cotton 20 flow to the first filter cotton 18 through the reflux channel 601 and the reflux box 6 in turn, the impurities on the second filter cotton 20 are cleaned, the second filter cotton 20 is prevented from being blocked by the impurities, and then the second meter-shaped frame 17 is regularly taken down by the handle 1701, and the first filter cotton 18 is cleaned.

[0024] The above merely describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A portable air filtering device comprising an upper cylinder, a lower cylinder, characterized in that: The upper cylinder and the lower cylinder are both open at the upper and lower ends, and the lower end of the upper cylinder and the upper end of the lower cylinder are both diffusion-shaped ports, and vertical support rods are uniformly distributed between the lower end of the upper cylinder and the upper edge of the lower cylinder, the upper end of the vertical support rod is fixedly connected with the lower end of the upper cylinder, and the lower end of the vertical support rod is fixedly connected with the lower edge of the upper end of the lower cylinder. The planetary gear transmission comprises a box body, a sun gear, planet gears and a planet carrier, wherein the sun gear and the planet gears are arranged in the box body, the sun gear is located in the middle, the planet gears are annularly distributed on the side of the sun gear, and the planet gears are respectively engaged with the sun gear and the box body, the planet carrier is rotatably connected to the box body, the rotation shafts of the planet gears are rotatably connected with the planet carrier, and the middle part of the planet carrier, the middle part of the sun gear and the middle part of the box body are through-penetrated. The lower end of the lower cylinder is provided with a second meter-shaped frame, the middle part of the second meter-shaped frame is provided with a handle, the outer end of the second meter-shaped frame is fixedly provided with a positioning ring, the positioning ring is threadedly connected with the lower end port of the lower cylinder, and the upper side of the second meter-shaped frame is placed with first filter cotton.

2. A portable air filtration device according to claim 1, wherein, The upper end of the upper cylinder is provided with a handle.

3. The portable air filtration device of claim 1, wherein, A filter screen is arranged at the upper end port of the upper cylinder.

4. The portable air filtration device of claim 1, wherein, The upper side of the planetary gear transmission located at the upper position is fixedly provided with a fairing. The upper end of the upper cylinder is provided with a handle. A filter screen is arranged at the upper end port of the upper cylinder. The upper side of the planetary gear transmission located at the upper position is fixedly provided with a fairing.

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