CN113446701B - Household indoor air purifier and using method thereof - Google Patents
Household indoor air purifier and using method thereof Download PDFInfo
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- CN113446701B CN113446701B CN202110755703.5A CN202110755703A CN113446701B CN 113446701 B CN113446701 B CN 113446701B CN 202110755703 A CN202110755703 A CN 202110755703A CN 113446701 B CN113446701 B CN 113446701B
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/80—Self-contained air purifiers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an indoor air purifier for home administration, which comprises a turning plate, wherein a first motor is fixedly arranged on the bottom surface of the turning plate, an output shaft of the first motor penetrates through the turning plate, a rotary drum is fixedly arranged on an extension end, a lifting drum capable of lifting back and forth along the axial direction of the rotary drum is arranged in the rotary drum, the upper end part of the lifting drum extends out of the rotary drum, an air inlet grille is arranged on the side wall of the extension end, the lower end part of the lifting drum extends into the rotary drum, a conical drum is detachably connected to the extension end, a driving mechanism for driving the lifting drum to lift back and forth is arranged between the lifting drum and the rotary drum, a textile floater filtering device is arranged in the lifting drum, and an odor and chemical pollutant filtering device positioned below the textile floater filtering device is also arranged in the lifting drum. The invention has the beneficial effects that: the deodorization efficiency is improved, textile floating objects can be thoroughly filtered, chemical pollutants can be thoroughly filtered, and air in indoor areas with various heights can be purified.
Description
Technical Field
The invention relates to the technical field of indoor air purification, in particular to a household indoor air purifier and a using method thereof.
Background
Investigation shows that modern people live and work indoors for 90% of the average time, and the indoor pollution degree is several times higher than that outdoors in modern cities, so that the relation of indoor air quality to human health is close and more important, the main reason is that indoor air contains textile floating objects, chemical pollutants and odor, firstly, the textile bed floating objects are mainly dust generated by people in arrangement, covering and pillow, and if the textile floating objects are absorbed for a long time, the human body suffers from respiratory diseases; secondly, the chemical pollutants mainly come from formaldehyde, benzene, TVOCs and the like introduced into furniture or wall paint, if the pregnant women inhale the chemical substances for a long time, the fetus is deformed, even the organs of the human body generate tumors, and the development of the human body is greatly damaged; finally, the odor mainly drifts out of the toilet and is very pungent, thus being not beneficial to healthy life.
Therefore, in order to purify indoor air and ensure healthy growth of people, people install an air purifier indoors. In the actual use process of the air purifier on the market, the following defects are exposed: 1. although the active carbon in the air purifier can remove odor, after the air purifier is used for a period of time, because the active carbon is always in a static state, the active carbon on the upper layer is invalid, and the active carbon on the lower layer is not fully utilized, so that the odor can be thoroughly filtered after a long time, the deodorization efficiency is reduced, and the air purification efficiency is further reduced. 2. The existing indoor air purifier intercepts the textile floating objects through the filter screen, but the filter screen can only intercept the textile floating objects with large size, and the textile floating objects with small size can directly penetrate through meshes on the filter screen to enter the exhaust pipe, so that the textile floating objects still exist in the gas exhausted from the exhaust pipe of the air purifier, and the defect of poor indoor air purifying effect exists. 3. Current indoor air purifier decomposes chemical contaminant through the UV fluorescent tube, though can the filtering organic chemical, the velocity of flow that inhales air purifier interior air current is very fast to lead to the chemical contaminant that flows along with the air current very fast through the decomposition area of UV fluorescent tube, and then lead to chemical contaminant not by thorough decomposition, finally lead to remaining chemical contaminant to discharge from air purifier's blast pipe, there is the poor defect of air purification indoor air effect. 4. The height of an air inlet grille of the air purifier from the ground is constant all the time, and the air purifier can only purify odor, chemical pollutants and textile floating objects at a certain layer height, namely, the odor, the chemical pollutants and the textile floating objects in an area above or below the air inlet grille can not be inhaled, so that the defect of incomplete indoor air purification exists. Therefore, there is a need for an air purifier that can improve the deodorization efficiency, thoroughly filter out the textile floating materials, thoroughly filter out the chemical pollutants, and purify the air in various indoor high-level areas.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a household indoor air purifier which has a compact structure, improves the deodorization efficiency, can thoroughly filter textile floating objects, can thoroughly filter chemical pollutants and can purify air in each high-level indoor area and a using method thereof.
The purpose of the invention is realized by the following technical scheme: the utility model provides an indoor air purifier for housekeeping, it includes the sweep, first motor has set firmly on the basal surface of sweep, the output shaft of first motor runs through the sweep setting, and extend and serve and set firmly the rotary drum, be provided with in the rotary drum and follow the rotary drum axial and be the lift section of thick bamboo that reciprocates, the upper end of lift section of thick bamboo extends in the rotary drum outside, and has seted up air inlet grille on the lateral wall of extension end, the lower tip of lift section of thick bamboo extends in the rotary drum, and can dismantle on the extension and be connected with a toper section of thick bamboo, is provided with between lift section of thick bamboo and the rotary drum to be used for driving the drive mechanism that the lift section of thick bamboo was reciprocal goes up and down, be provided with weaving floater filtering device in the lift section of thick bamboo, still be provided with stink and chemical contamination filtering device that is located weaving floater filtering device below in the lift section of thick bamboo, it sets firmly the draught fan to lie in its bottom in the rotary drum, is connected with the hose between the inlet scoop of draught fan and the bottom mouth of toper section of thick bamboo, and the exhaust vent department of the draught fan is connected with the outside exhaust pipe, has seted up a plurality of venthole on the outer column surface of exhaust pipe extension section.
Universal wheels are arranged on the bottom surface of the sweeping board and at four corners of the sweeping board, and a mop is fixedly arranged on the sweeping board.
The floater filtering device comprises a storage battery fixedly arranged on the outer wall of the extending end of the lifting cylinder and an upper partition fixedly arranged in the lifting cylinder, a central hole I is formed in the middle of the upper partition, a plurality of positive electrodes are arranged on the bottom surface of the upper partition and on the left side of the central hole I, a plurality of negative electrodes corresponding to the positive electrodes are arranged on the bottom surface of the upper partition and on the right side of the central hole I, joints of the positive electrodes and the negative electrodes are embedded into the upper partition, the joints of the positive electrodes are connected with the positive end of the storage battery through a lead A, and the joints of the negative electrodes are connected with the negative end of the storage battery through a lead B.
Be provided with weaving floater clearance and collection device on the floater filtering device, weaving floater clearance and collection device is including collecting box, oblique filter screen, set up power pack, the cover on the outer wall of extension end on the lift section of thick bamboo and locate the outside sliding sleeve of positive electrode and negative electrode, has set firmly the scraper blade on the plane that each sliding sleeve formed, has seted up the centre bore II of intercommunication centre bore I on the scraper blade, power pack is including setting firmly quick-witted case on the lift section of thick bamboo outer wall, set up second motor and the second reduction gear in quick-witted case, and the output shaft of second motor and the input shaft of second reduction gear are through the coupling joint, and the output shaft of second reduction gear extends in the lift section of thick bamboo, and has set firmly the reel on the extension end, and it has the steel wire to coil on the reel, and the head end of steel wire runs through the upper baffle and sets firmly on the scraper blade, oblique filter screen sets firmly in the lift section of thick bamboo and is located the electrode below, and oblique filter screen coats and is stamped the ventilated membrane, be provided with the screwed pipe on the collection box, screwed pipe screwed connection on the outer wall of lift section of thick bamboo and dock relatively with the low level department of oblique filter screen.
The odor and chemical pollutant filtering device comprises an upper filter screen, a lower filter screen and a lower partition board which are fixedly arranged in a lifting cylinder and sequentially arranged below an inclined filter screen from top to bottom, activated carbon is filled between the upper filter screen and the lower filter screen, a central gear is rotatably arranged on the lower partition board through a rotating shaft, a plurality of hollow shafts are rotatably arranged on the lower partition board and circumferentially distributed around the central gear, blades are arranged on each hollow shaft, planetary gears are welded on the top surfaces of the hollow shafts, wire passing holes communicated with the hollow shafts are formed in the planetary gears, lamp holders are fixedly arranged on the top surfaces of the planetary gears, the lamp holders are arranged on UV (ultraviolet) lamp tubes and are meshed with the central gear, a power transmission wire on each lamp holder sequentially penetrates through the wire holes, an inner cavity of the hollow shafts and the wall thickness of the lifting cylinder and is finally connected onto a storage battery, a third speed reducer is fixedly arranged on the bottom surface of the lower partition board, an output shaft of the third speed reducer is connected with the rotating shaft, a third motor is fixedly arranged on the third speed reducer, and an output shaft of the third motor is connected with an input shaft of the third speed reducer.
A plurality of air passing holes are formed in the lower partition plate, and a power line of the third motor axially penetrates through the wall thickness of the lifting cylinder and is connected to the storage battery; the top of sun gear sets firmly the dead lever, and the dead lever runs through filter screen down and stretches into in the region that upper and lower filter screen formed, has set firmly on the extension end of dead lever and dials the board, dials on the basal surface of board and along its length direction set firmly a plurality of teeth of dialling, dials the tooth and contacts with the basal surface of lower filter screen.
A plurality of shoes supported on the board are disposed on the bottom surface of the drum.
The driving mechanism comprises a fourth motor, a guide rail, a rack and a sliding block, wherein the rack and the sliding block are respectively fixedly arranged on the left side wall and the right side wall of the lifting cylinder, the guide rail is fixedly arranged on the inner wall of the rotary cylinder along the axial direction of the rotary cylinder, the lifting cylinder is slidably arranged on the guide rail through the sliding block, the fourth motor is fixedly arranged on the outer wall of the rear side of the rotary cylinder, an output shaft of the fourth motor is connected with a transmission shaft, the transmission shaft is rotatably arranged between the front wall and the rear wall of the rotary cylinder, a gear corresponding to the rack is arranged on the transmission shaft, and the gear is meshed with the rack.
The outer wall of the lower end part of the lifting cylinder is provided with a flange plate, the outer wall of the upper end part of the conical cylinder is provided with a flange plate, and a locking screw is connected between the two flange plates.
The household indoor air purifier and the use method thereof comprise the following steps:
s1, preparing before purifying air, and specifically comprising the following steps:
s11, dragging the vehicle plate to a designated room through a mop by a user; the plugs of the first motor, the second motor and the fourth motor are all connected to a power supply, and the plug of the induced draft fan is connected to the power supply;
s12, a user turns on a switch on a fourth motor, the fourth motor drives a transmission shaft to rotate, the transmission shaft drives a gear to rotate, the gear drives a rack to move upwards, the rack drives a lifting cylinder to move upwards, meanwhile, a sliding block moves upwards along a guide rail, when the air inlet grille is lifted to a certain height, the fourth motor is controlled to rotate forwards and backwards, the gear drives the rack to do reciprocating lifting motion, and the rack drives the lifting cylinder to do reciprocating lifting motion so as to drive the air inlet grille to do reciprocating lifting motion; then, a user turns on the first motor, and the first motor drives the rotary drum to rotate around the axis of the rotary drum, so that the air inlet grille is driven to rotate;
s13, a user opens a switch on a storage battery, the storage battery supplies positive points to a positive electrode to form positive charges on the positive electrode, the storage battery supplies negative charges to a negative electrode to form negative charges on the negative electrode, an electric field is formed between the positive charges and the negative charges, meanwhile, the storage battery also supplies power to a third motor, the torque of the third motor is transmitted to a rotating shaft after being reduced by a third speed reducer, the rotating shaft drives a central gear to rotate, the central gear drives a fixed rod to rotate around the axis of the central gear, the fixed rod drives a shifting plate to rotate, the shifting plate drives an ultraviolet shifting tooth to rotate, the shifting tooth enables active carbon to roll in an area between an upper filter screen and a lower filter screen, the central gear also drives each planetary gear to rotate, the planetary gears drive a moving blade, a lamp holder and a UV lamp tube to rotate around the axis of the planetary gear, and the blades generate upward wind power; meanwhile, the storage battery also supplies power to the power transmission line, and after the lamp holder is electrified, the UV ultraviolet lamp tube emits ultraviolet light;
s2, purifying indoor air, wherein the specific operation steps are as follows:
s21, a user opens an induced draft fan, the induced draft fan pumps air in a room into a lifting cylinder, airflow sequentially passes through the central hole I and the central hole II under suction force and enters an electric field formed by a positive electrode and a negative electrode, and textile floating objects with static electricity in the airflow are adsorbed on the electrodes, so that large-size and small-size textile floating objects in the airflow are simultaneously filtered;
s22, filtering out the airflow with textile floating objects, sequentially passing through the breathable film, the meshes of the inclined filter screen, the meshes of the upper filter screen, the activated carbon layer and the meshes of the lower filter screen to enter an illumination area, and adsorbing odor carried in the airflow by the activated carbon when the airflow flows through the activated carbon layer, so that the odor in the airflow is filtered;
s23, chemical pollutants in the air flow entering the illumination area are decomposed by ultraviolet lamp light emitted by the UV ultraviolet lamp tube, so that the chemical pollutants in the air flow are filtered;
s24, the clean air filtered to remove the chemical pollutants sequentially passes through the air passing hole, the conical cylinder, the hose, the draught fan and the exhaust pipe under the suction force of the draught fan and is finally discharged into a room through the air outlet hole, so that the indoor air is purified.
The invention has the following advantages:
1. the filtering device for the floating objects comprises a storage battery fixedly arranged on the outer wall of an extending end of a lifting cylinder, and an upper separator fixedly arranged in the lifting cylinder, wherein the middle part of the upper separator is provided with a central hole I, the bottom surface of the upper separator is provided with a plurality of positive electrodes positioned on the left side of the central hole I, the bottom surface of the upper separator is provided with a plurality of negative electrodes corresponding to the positive electrodes positioned on the right side of the central hole I, the joints of the positive electrodes and the negative electrodes are embedded in the upper separator, the joint of the positive electrode is connected with the positive electrode end of the storage battery through a lead A, and the joint of the negative electrode is connected with the negative electrode end of the storage battery through a lead B; the textile floating objects with static electricity in the airflow are adsorbed on the electrode, so that the textile floating objects with large size and small size in the airflow are simultaneously filtered; therefore, compare traditional filter screen and come the filtration weaving floater, realized the thorough filtration to weaving floater, very big improvement the purifying effect of air.
2. The top of the central gear is fixedly provided with a fixed rod, the fixed rod penetrates through a lower filter screen and extends into an area formed by the upper filter screen and the lower filter screen, the extending end of the fixed rod is fixedly provided with a shifting plate, the bottom surface of the shifting plate is fixedly provided with a plurality of shifting teeth along the length direction of the shifting plate, the shifting teeth are in contact with the bottom surface of the lower filter screen, and the shifting teeth enable active carbon to roll in the area between the upper filter screen and the lower filter screen; because the active carbon is in the motion state all the time under stirring of dialling the tooth to increased the area of contact between foul smell and the active carbon, and then shortened the filtering time of foul smell, very big improvement deodorization efficiency, and then very big improvement the purification efficiency of air.
3. A central gear is rotatably mounted on a lower partition plate through a rotating shaft, a plurality of hollow shafts are rotatably mounted on the lower partition plate, the hollow shafts are distributed around the circumference of the central gear, blades are mounted on the hollow shafts, planetary gears are welded on the top surfaces of the hollow shafts, wire passing holes communicated with the hollow shafts are formed in the planetary gears, lamp holders are fixedly arranged on the top surfaces of the planetary gears, UV ultraviolet lamp tubes are arranged on the lamp holders, and the planetary gears are meshed with the central gear; chemical pollutants in the air flow entering the illumination area are decomposed by ultraviolet lamp light emitted by the UV ultraviolet lamp tube, so that the chemical pollutants in the air flow are filtered; because the blades generate upward wind power, the downward flowing speed of the airflow is reduced, namely the speed of the airflow passing through the illumination area is reduced, chemical pollutants are thoroughly decomposed, and the air purification effect is greatly improved.
4. The air inlet grille of the invention does reciprocating lifting motion and also does rotating motion on the horizontal plane, so the purifier can purify the air in each height area in the room, and compared with the static air inlet grille of the prior air purifier, the air purifier can purify the air in the room more thoroughly.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a front cross-sectional view of FIG. 1;
FIG. 3 isbase:Sub>A schematic cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic structural view of a float filtering apparatus;
FIG. 5 is an enlarged view of a portion I of FIG. 4;
FIG. 6 is an enlarged view of a portion II of FIG. 4;
FIG. 7 is a schematic view of a device for filtering off odor and chemical contaminants;
FIG. 8 is an enlarged partial view of portion III of FIG. 7;
FIG. 9 is a top view of FIG. 7 with the upper and lower screens removed;
FIG. 10 is a schematic view of the connection of the tapered barrel to the lift barrel;
FIG. 11 is a schematic diagram of the operation of the present invention;
FIG. 12 is a schematic structural diagram according to a second embodiment of the present invention;
in the drawing, 1-vehicle plate, 2-first motor, 3-rotating drum, 4-lifting drum, 5-air inlet grille, 6-conical drum, 7-induced draft fan, 8-hose, 9-exhaust duct, 10-air outlet, 11-mop, 12-storage battery, 13-upper separator, 14-central hole I, 15-positive electrode, 16-negative electrode, 17-lead A, 18-lead B, 19-collection box, 20-inclined filter screen, 21-sliding sleeve, 22-scraper, 23-cabinet, 24-second motor, 25-second reducer, 26-winding drum, 27-steel wire, 28-air permeable film, 29-upper filter screen, 30-lower filter screen, 31-lower separator, 32-rotating shaft, 33-central gear, 34-hollow shaft, 35-blade, 36-planetary gear, 37-flange hole, 38-lamp holder, 39-UV lamp tube, 41-transmission line, 42-third reducer, 43-third motor, 44-air passing hole, 45-fixing rod, 46-shifting plate, 47-tooth shifting plate, sliding flange plate, 48-sliding shoe, 48-sliding block, 49-sliding block, 53-slider, 53-bend pipe, 50-ultraviolet lamp, and bend pipe.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
the first embodiment is as follows: as shown in fig. 1 to 10, an indoor air purifier for home administration includes a turning board 1, universal wheels are installed on the bottom surface of the turning board 1 at four corners of the turning board 1, a mop 11 is fixedly installed on the turning board 1, a first motor 2 is fixedly installed on the bottom surface of the turning board 1, an output shaft of the first motor 2 penetrates through the turning board 1, and a rotating drum 3 is fixedly installed on an extending end of the turning drum 3, a plurality of shoes 48 supported on the turning board 1 are installed on the bottom surface of the rotating drum 3, a lifting drum 4 capable of reciprocating up and down along the axial direction of the rotating drum 3 is installed in the rotating drum 3, an upper end of the lifting drum 4 extends outside the rotating drum 3, an air inlet grille 5 is installed on a side wall of the extending end, a lower end of the lifting drum 4 extends into the rotating drum 3, and a tapered drum 6 is detachably connected to the extending end. Be provided with between a section of thick bamboo 4 and the rotary drum 3 and be used for driving a section of thick bamboo 4 and be reciprocating elevating's actuating mechanism, be provided with weaving floater filtering device in the section of thick bamboo 4, still be provided with the stink and the chemical contamination filtering device who is located weaving floater filtering device below in the section of thick bamboo 4, it has set firmly draught fan 7 to lie in its bottom in the rotary drum 3, is connected with hose 8 between the inlet scoop of draught fan 7 and the bottom mouth of a cone 6, and the air outlet department of draught fan 7 is connected with and extends in 3 outside exhaust pipe 9 of rotary drum, has seted up a plurality of ventholes 10 on the cylinder of the outer extension section of exhaust pipe 9.
As shown in fig. 4 to 6, the floating object filtering device includes a storage battery 12 fixed on the outer wall of the extending end of the lifting cylinder 4, and an upper separator 13 fixed in the lifting cylinder 4, wherein a central hole I14 is formed in the middle of the upper separator 13, a plurality of positive electrodes 15 are disposed on the bottom surface of the upper separator 13 and on the left side of the central hole I14, a plurality of negative electrodes 16 corresponding to the positive electrodes 15 are disposed on the bottom surface of the upper separator 13 and on the right side of the central hole I14, the joints of the positive electrodes 15 and the negative electrodes 16 are embedded in the upper separator 13, the joint of the positive electrode 15 is connected to the positive end of the storage battery 12 through a lead a17, and the joint of the negative electrode 16 is connected to the negative end of the storage battery 12 through a lead B18. Be provided with weaving floater clearance and collection device on the floater filtering device, weaving floater clearance and collection device is including collecting box 19, oblique filter screen 20, set up power unit, the cover on the extension end outer wall on section of thick bamboo 4 and locate the outside sliding sleeve 21 of positive electrode 15 and negative electrode 16, has set firmly scraper blade 22 on the plane that each sliding sleeve 21 formed, has seted up the centre bore II that communicates centre bore I14 on the scraper blade 22, power unit is including setting firmly quick-witted case 23 on the outer wall of section of thick bamboo 4, setting up second motor 24 and the second reduction gear 25 in quick-witted case 23, and the output shaft of second motor 24 passes through the coupling joint with the input shaft of second reduction gear 25, and the output shaft of second reduction gear 25 extends in section of thick bamboo 4, and has set firmly reel 26 on the extension end, and it has steel wire 27 to coil on reel 26, and the head end of steel wire 27 passes through last baffle 13 and sets firmly on scraper blade 22, oblique filter screen 20 sets firmly in section of thick bamboo 4 and is located the electrode below, and oblique filter screen 20 coats with and is stamped 28 on the oblique filter screen 20, be provided with the screwed pipe on the collection box 19, screwed connection of threaded connection in the outer wall of section of thick bamboo 4 and the permeable membrane 20 is located to the filter screen 20.
As shown in fig. 7 to 9, the odor and chemical pollutant filtering device includes an upper filter screen 29, a lower filter screen 30 and a lower partition 31 which are fixedly arranged in a lifting cylinder 4 and sequentially arranged below an inclined filter screen 20 from top to bottom, activated carbon is filled between the upper filter screen 29 and the lower filter screen 30, a central gear 33 is rotatably arranged on the lower partition 31 through a rotating shaft 32, a plurality of hollow shafts 34 are rotatably arranged on the lower partition 31, the hollow shafts 34 are circumferentially distributed around the central gear 33, blades 35 are arranged on each hollow shaft 34, a planetary gear 36 is welded on the top surface of each hollow shaft 34, a wire passing hole 37 communicated with the hollow shaft 34 is formed in each planetary gear 36, a lamp holder 38 is fixedly arranged on the top surface of each planetary gear 36, a UV lamp tube 39 is arranged on the lamp holder 38, each planetary gear 36 is engaged with the central gear 33, a power transmission wire 41 on the lamp holder 38 sequentially penetrates through the wire passing hole 37, the inner cavity of the hollow shaft 34 and the wall thickness of the lifting cylinder 4 and is finally connected to a storage battery 12, a third speed reducer 42 is fixedly arranged on the bottom surface of the lower partition 31, an output shaft of the third speed reducer 42 is connected to the rotating shaft 32, a third speed reducer 43 is fixedly arranged on the third speed reducer 42, and an input shaft of the third speed reducer 43 is connected to the motor.
A plurality of air passing holes 44 are formed in the lower partition plate 31, and a power line of the third motor 43 axially penetrates through the wall thickness of the lifting cylinder 4 and is connected to the storage battery 12; the top of the central gear 33 is fixedly provided with a fixing rod 45, the fixing rod 45 penetrates through the lower filter screen 30 and extends into an area formed by the upper filter screen and the lower filter screen, the extending end of the fixing rod 45 is fixedly provided with a shifting plate 46, the bottom surface of the shifting plate 46 is fixedly provided with a plurality of shifting teeth 47 along the length direction, and the shifting teeth 47 are in contact with the bottom surface of the lower filter screen 30.
The driving mechanism comprises a fourth motor 49, a guide rail 50, a rack 51 and a sliding block 52 which are fixedly arranged on the left side wall and the right side wall of the lifting cylinder 4 respectively, the guide rail 50 is fixedly arranged on the inner wall of the rotary cylinder 3 along the axial direction of the rotary cylinder 3, the lifting cylinder 4 is slidably arranged on the guide rail 50 through the sliding block 52, the fourth motor 49 is fixedly arranged on the outer wall of the rear side of the rotary cylinder 3, a transmission shaft 53 is connected onto an output shaft of the fourth motor 49, the transmission shaft 53 is rotatably arranged between the front wall and the rear wall of the rotary cylinder 3, a gear 54 corresponding to the rack 51 is arranged on the transmission shaft 53, and the gear 54 is meshed with the rack 51.
The household indoor air purifier and the use method thereof comprise the following steps:
s1, preparing before purifying air, which specifically comprises the following steps:
s11, dragging the vehicle plate 1 into a designated room by a user through the mop 11; the plugs of the first motor 2, the second motor 24 and the fourth motor 49 are all connected to a power supply, and the plug of the induced draft fan 7 is connected to the power supply;
s12, a user turns on a switch on a fourth motor 49, the fourth motor 49 drives a transmission shaft 53 to rotate, the transmission shaft 53 drives a gear 54 to rotate, the gear 54 drives a rack 51 to move upwards, the rack 51 drives a lifting cylinder 4 to move upwards, meanwhile, a sliding block 52 moves upwards along a guide rail 50, and after the air inlet grille 5 is lifted to a certain height, the fourth motor 49 is controlled to rotate forwards and backwards, the gear 54 drives the rack 51 to do reciprocating lifting motion, and the rack 51 drives the lifting cylinder 4 to do reciprocating lifting motion so as to drive the air inlet grille 5 to do reciprocating lifting motion; then, the user turns on the first motor 2, and the first motor 2 drives the drum 3 to rotate around its own axis, so as to drive the air-intake grille 5 to rotate as shown in fig. 11;
s13, a user turns on a switch on the storage battery 12, the storage battery 12 supplies positive points to the positive electrode 15 to form positive charges on the positive electrode 15, the storage battery 12 supplies negative charges to the negative electrode 16 to form negative charges on the negative electrode 16, an electric field is formed between the positive charges and the negative charges, meanwhile, the storage battery 12 also supplies power to the third motor 43, the torque of the third motor 43 is transmitted to the rotating shaft 32 after being reduced by the third reducer 42, the rotating shaft 32 drives the central gear 33 to rotate, the central gear 33 drives the fixed rod 45 to rotate around the axis of the fixed rod, the fixed rod 45 drives the shifting plate 46 to rotate, the shifting plate 46 drives the shifting teeth 47 to rotate, the shifting teeth 47 enable the activated carbon to roll in an area between an upper filter screen and a lower filter screen, the central gear 33 also drives each planetary gear 36 to rotate, the planetary gears 36 drive the blades 35, the lamp holder 38 and the UV lamp tube 39 to rotate around the axis of the ultraviolet lamp, and the blades 35 generate upward wind power; meanwhile, the storage battery 12 also supplies power to the power transmission line 41, and after the lamp holder 38 is electrified, the UV ultraviolet lamp tube 39 emits ultraviolet light;
s2, purifying indoor air, wherein the specific operation steps are as follows:
s21, a user opens the induced draft fan 7, the induced draft fan 7 pumps air in a room into the lifting cylinder 4, airflow sequentially passes through the central hole I14 and the central hole II under suction force and enters an electric field formed by the positive electrode 15 and the negative electrode 16, and textile floating objects with static electricity in the airflow are adsorbed on the electrodes, so that large-size and small-size textile floating objects in the airflow are simultaneously filtered; therefore, compared with the traditional filter screen for filtering the textile floating objects, the filter screen realizes the complete filtering of the textile floating objects and greatly improves the air purification effect;
s22, filtering the airflow with textile floating objects to pass through the breathable film 28, the meshes of the inclined filter screen 20, the meshes of the upper filter screen 29, the activated carbon layer and the meshes of the lower filter screen 30 in sequence to enter an illumination area, and adsorbing odor carried in the airflow by the activated carbon when the airflow passes through the activated carbon layer, so that the odor in the airflow is filtered; because the active carbon is always in a motion state under the stirring of the stirring teeth 47, the contact area between the odor and the active carbon is increased, the odor filtering time is further shortened, the deodorization efficiency is greatly improved, and the air purification efficiency is further greatly improved;
s23, chemical pollutants in the air flow entering the illumination area are decomposed by ultraviolet lamp light emitted by the UV ultraviolet lamp tube 39, so that the chemical pollutants in the air flow are filtered; the blades 35 generate upward wind power, so that the downward flowing speed of the airflow is reduced, namely the speed of the airflow passing through the illumination area is reduced, chemical pollutants are thoroughly decomposed, and the air purification effect is greatly improved;
and S24, the clean air filtered to remove the chemical pollutants sequentially passes through the air passing hole 44, the conical cylinder 6, the hose 8, the draught fan 7 and the exhaust pipe 9 under the suction force of the draught fan 7 and is finally discharged into the room through the air outlet hole 10, so that the indoor air is purified.
In step S12, since the intake grille 5 performs both reciprocating up-and-down movement and rotational movement on the horizontal plane, the air purifier can purify air in various height areas in the room, and the indoor air is more thoroughly purified compared with the static intake grille of the conventional air purifier.
When the purifier is used for a period of time, a large amount of textile floating objects are covered on the positive electrode 15 and the negative electrode 16, a user only needs to open the second motor 24, the torque of the second motor 24 is transmitted to the winding drum 26 after being reduced by the second speed reducer 25, the steel wire 27 is unreeled from the winding drum 26, the scraper 22 vertically moves downwards, the scraper 22 drives the sliding sleeve 21 to move downwards along the length direction of the positive electrode and the negative electrode, the textile floating objects attached to the positive electrode and the negative electrode are downwards scraped off by the sliding sleeve 21 in the downward movement process, the textile floating objects which fall off fall on the breathable films 28, and under the centrifugal force, the textile floating objects roll into the collection box 19 along the inclined planes of the breathable films 28 to be collected, so that the textile floating objects on the positive electrode and the negative electrode can be conveniently cleaned in the later period.
The second embodiment: as shown in fig. 12, the present embodiment is different from the present embodiment in that: the air inlet grille 5 is connected with an elbow pipe 56, the other end opening of the elbow pipe 56 is arranged close to the ground, and the operation of the steps S1-S2 is repeated, so that the air in the indoor low-level height area can be sucked and purified.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a housekeeping is with indoor air purifier which characterized in that: the textile floating substance filtering device comprises a turning plate (1), a first motor (2) is fixedly arranged on the bottom surface of the turning plate (1), an output shaft of the first motor (2) penetrates through the turning plate (1) to be arranged, a rotary drum (3) is fixedly arranged on an extension end, a lifting drum (4) capable of performing reciprocating lifting along the axial direction of the rotary drum (3) is arranged in the rotary drum (3), the upper end of the lifting drum (4) extends outside the rotary drum (3), an air inlet grid (5) is arranged on the side wall of the extension end, the lower end of the lifting drum (4) extends in the rotary drum (3), a conical drum (6) is detachably connected on the extension end, a driving mechanism used for driving the lifting drum (4) to perform reciprocating lifting is arranged between the lifting drum (4) and the rotary drum (3), a textile floating substance filtering device is arranged in the lifting drum (4), an air exhaust and chemical pollutant filtering device below the textile floating substance filtering device is further arranged in the lifting drum (4), an exhaust pipe (7) is fixedly arranged at the bottom of the rotary drum (3), an air suction port of the induced draft fan (7) and an outer extension port of the conical hose (6), a plurality of air outlet (9) is connected with a plurality of air outlet pipes (9) connected with a plurality of air outlet pipe (9);
universal wheels are arranged on the bottom surface of the sweep (1) and at four corners of the sweep, and a mop (11) is fixedly arranged on the sweep (1); the floater filtering device comprises a storage battery (12) fixedly arranged on the outer wall of an extending end of the lifting cylinder (4) and an upper separator (13) fixedly arranged in the lifting cylinder (4), the middle of the upper separator (13) is provided with a central hole I (14), the bottom surface of the upper separator (13) is provided with a plurality of positive electrodes (15) on the left side of the central hole I (14), the bottom surface of the upper separator (13) is provided with a plurality of negative electrodes (16) corresponding to the positive electrodes (15) on the right side of the central hole I (14), the joints of the positive electrodes (15) and the negative electrodes (16) are embedded into the upper separator (13), the joint of the positive electrode (15) is connected with the positive end of the storage battery (12) through a lead A (17), and the joint of the negative electrode (16) is connected with the negative end of the storage battery (12) through a lead B (18); the textile floater cleaning and collecting device is arranged on the floater filtering device and comprises a collecting box (19), an inclined filter screen (20), a power unit arranged on the outer wall of the extending end of the lifting cylinder (4), and sliding sleeves (21) sleeved outside the positive electrode (15) and the negative electrode (16), wherein a scraper (22) is fixedly arranged on a plane formed by each sliding sleeve (21), the scraper (22) is provided with a central hole II communicated with the central hole I (14), the power unit comprises a case (23) fixedly arranged on the outer wall of the lifting cylinder (4), a second motor (24) and a second speed reducer (25) which are arranged in the case (23), an output shaft of the second motor (24) is connected with an input shaft of the second speed reducer (25) through a coupler, an output shaft of the second speed reducer (25) extends into the lifting cylinder (4), a winding drum (26) is fixedly arranged on the extension end, a steel wire (27) is wound on the winding drum (26), the head end of the steel wire (27) penetrates through the upper clapboard (13) and is fixedly arranged on the scraper (22), the inclined filter screen (20) is fixedly arranged in the lifting cylinder (4) and is positioned below the electrode, a ventilated membrane (28) is covered on the inclined filter screen (20), the collecting box (19) is provided with a threaded pipe which is connected to the outer wall of the lifting cylinder (4) in a threaded manner and is butted with the lower position of the inclined filter screen (20);
the odor and chemical pollutant filtering device comprises an upper filter screen (29), a lower filter screen (30) and a lower partition board (31) which are fixedly arranged in a lifting cylinder (4) and sequentially arranged below an inclined filter screen (20) from top to bottom, activated carbon is filled between the upper filter screen (29) and the lower filter screen (30), a central gear (33) is rotatably arranged on the lower partition board (31) through a rotating shaft (32), a plurality of hollow shafts (34) are rotatably arranged on the lower partition board (31), the hollow shafts (34) are circumferentially distributed around the central gear (33), blades (35) are respectively arranged on each hollow shaft (34), a planetary gear (36) is welded on the top surface of each hollow shaft (34), a wire passing hole (37) communicated with the hollow shafts (34) is formed in the planetary gear (36), a lamp holder (38) is fixedly arranged on the top surface of the planetary gear (36), each planetary gear (36) is engaged with the central gear (33), a power transmission line (41) on the lamp holder (38) sequentially penetrates through the hole (37), a lamp holder (34), an inner cavity of the lamp holder (38), an ultraviolet lamp tube (39) is arranged on the lamp holder (4), and a third rotating shaft (31) is connected with a third speed reducer (42) connected to the bottom surface of the lifting cylinder, a third motor (43) is fixedly arranged on the third speed reducer (42), and an output shaft of the third motor (43) is connected with an input shaft of the third speed reducer (42);
a plurality of air passing holes (44) are formed in the lower partition plate (31), and a power line of the third motor (43) penetrates through the wall thickness of the lifting cylinder (4) along the axial direction and is connected to the storage battery (12); a fixing rod (45) is fixedly arranged at the top of the central gear (33), the fixing rod (45) penetrates through the lower filter screen (30) and extends into an area formed by the upper filter screen and the lower filter screen, a shifting plate (46) is fixedly arranged at the extending end of the fixing rod (45), a plurality of shifting teeth (47) are fixedly arranged on the bottom surface of the shifting plate (46) along the length direction of the shifting plate, and the shifting teeth (47) are in contact with the bottom surface of the lower filter screen (30);
the bottom surface of the rotating drum (3) is provided with a plurality of sliding shoes (48) supported on the vehicle board (1).
2. A domestic indoor air purifier as claimed in claim 1, wherein: the driving mechanism comprises a fourth motor (49), a guide rail (50), a rack (51) and a sliding block (52) which are fixedly arranged on the left side wall and the right side wall of the lifting cylinder (4) respectively, the guide rail (50) is fixedly arranged on the inner wall of the rotary cylinder (3) along the axial direction of the rotary cylinder (3), the lifting cylinder (4) is slidably arranged on the guide rail (50) through the sliding block (52), the fourth motor (49) is fixedly arranged on the outer wall of the rear side of the rotary cylinder (3), a transmission shaft (53) is connected onto an output shaft of the fourth motor (49), the transmission shaft (53) is rotatably arranged between the front wall and the rear wall of the rotary cylinder (3), a gear (54) corresponding to the rack (51) is arranged on the transmission shaft (53), and the gear (54) is meshed with the rack (51).
3. A domestic indoor air cleaner according to claim 1, wherein: the outer wall of the lower end part of the lifting cylinder (4) is provided with a flange plate (55), the outer wall of the upper end part of the conical cylinder (6) is provided with a flange plate (55), and a locking screw is connected between the two flange plates (55).
4. Use of the domestic indoor air purifier according to any one of claims 1 to 3, wherein: the method comprises the following steps:
s1, preparing before purifying air, and specifically comprising the following steps:
s11, dragging the vehicle plate (1) to a specified room by a user through the mop (11); the plugs of the first motor (2), the second motor (24) and the fourth motor (49) are all connected to a power supply, and the plug of the induced draft fan (7) is connected to the power supply;
s12, a user turns on a switch on a fourth motor (49), the fourth motor (49) drives a transmission shaft (53) to rotate, the transmission shaft (53) drives a gear (54) to rotate, the gear (54) drives a rack (51) to move upwards, the rack (51) drives a lifting cylinder (4) to move upwards, meanwhile, a sliding block (52) moves upwards along a guide rail (50), after an air inlet grille (5) rises to a certain height, the fourth motor (49) is controlled to rotate forwards and backwards, the gear (54) drives the rack (51) to do reciprocating lifting motion, and the rack (51) drives the lifting cylinder (4) to do reciprocating lifting motion so as to drive the air inlet grille (5) to do reciprocating lifting motion; then, a user turns on the first motor (2), and the first motor (2) drives the rotary drum (3) to rotate around the axis of the rotary drum, so that the air inlet grille (5) is driven to rotate;
s13, a user turns on a switch on a storage battery (12), the storage battery (12) supplies positive points to a positive electrode (15) to form positive charges on the positive electrode (15), the storage battery (12) supplies negative charges to a negative electrode (16) to form negative charges on the negative electrode (16), an electric field is formed between the positive charges and the negative charges, meanwhile, the storage battery (12) also supplies power to a third motor (43), the torque of the third motor (43) is transmitted to a rotating shaft (32) after being reduced by a third reducer (42), the rotating shaft (32) drives a central gear (33) to rotate, the central gear (33) drives a fixed rod (45) to rotate around the axis of the central gear, the fixed rod (45) drives a shifting plate (46) to rotate, the shifting plate (46) drives a shifting tooth (47) to rotate, the activated carbon rolls in an area between an upper filter screen and a lower filter screen, the central gear (33) also drives each planetary gear (36) to rotate, and the planetary gears (36) drive blades (35), a lamp holder (38) and a UV lamp tube (39) to rotate around the axis of the ultraviolet lamp tube, and the blades (35) to generate upward electricity; meanwhile, the storage battery (12) also supplies power to the power transmission line (41), and after the lamp holder (38) is electrified, the UV ultraviolet lamp tube (39) emits ultraviolet light;
s2, purifying indoor air, wherein the specific operation steps are as follows:
s21, a user opens the induced draft fan (7), the induced draft fan (7) sucks air in a room into the lifting cylinder (4), air flow sequentially passes through the central hole I (14) and the central hole II under suction force and enters an electric field formed by the positive electrode (15) and the negative electrode (16), and textile floating objects with static electricity in the air flow are adsorbed on the electrodes, so that large-size and small-size textile floating objects in the air flow are simultaneously filtered;
s22, filtering out the airflow with textile floating objects, sequentially passing through the air permeable membrane (28), the meshes of the inclined filter screen (20), the meshes of the upper filter screen (29), the activated carbon layer and the meshes of the lower filter screen (30) to enter an illumination area, and adsorbing odor carried in the airflow by the activated carbon when the airflow flows through the activated carbon layer, so that the odor in the airflow is filtered;
s23, chemical pollutants in the air flow entering the illumination area are decomposed by ultraviolet lamp light emitted by the UV ultraviolet lamp tube (39), so that the chemical pollutants in the air flow are filtered;
s24, the clean air filtered to remove the chemical pollutants sequentially passes through the air passing hole (44), the conical cylinder (6), the hose (8), the draught fan (7) and the exhaust pipe (9) under the suction force of the draught fan (7) and is finally discharged into a room through the air outlet hole (10), so that the indoor air is purified.
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| CN202110755703.5A CN113446701B (en) | 2021-07-05 | 2021-07-05 | Household indoor air purifier and using method thereof |
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| CN202110755703.5A CN113446701B (en) | 2021-07-05 | 2021-07-05 | Household indoor air purifier and using method thereof |
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| CN114838438A (en) * | 2022-04-27 | 2022-08-02 | 王宇 | Air purifier with built-in stand-by power supply |
| CN117504462B (en) * | 2023-11-30 | 2024-05-28 | 鄄城县综合行政执法大队 | Building engineering anhydrous raise dust processing apparatus |
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| CN207407449U (en) * | 2017-09-12 | 2018-05-25 | 湖南易可摩环保科技有限公司 | No material consumption air purifier |
| CN213454105U (en) * | 2020-07-14 | 2021-06-15 | 慈书 | Rotatable air purifier |
| CN212987553U (en) * | 2020-07-27 | 2021-04-16 | 陕西永兴机械设备制造有限公司 | Environment-friendly air purifier |
| CN212962114U (en) * | 2020-09-10 | 2021-04-13 | 郑素云 | But height-adjusting's air purifier |
| CN212962062U (en) * | 2020-09-15 | 2021-04-13 | 苏州华达仪器设备有限公司 | Movable lifting type purification device |
| CN213395783U (en) * | 2020-10-31 | 2021-06-08 | 陈景钱 | Movable industrial workshop air purification equipment |
| CN112378031A (en) * | 2020-11-13 | 2021-02-19 | 合肥京亘环保科技有限公司 | Meeting room that facilitates use is with portable air purification device |
| DE202020005225U1 (en) * | 2020-12-17 | 2021-01-20 | Technotrans Se | Room air filter device |
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