CN111336621B - Environment-friendly air purification device - Google Patents

Environment-friendly air purification device Download PDF

Info

Publication number
CN111336621B
CN111336621B CN202010272090.5A CN202010272090A CN111336621B CN 111336621 B CN111336621 B CN 111336621B CN 202010272090 A CN202010272090 A CN 202010272090A CN 111336621 B CN111336621 B CN 111336621B
Authority
CN
China
Prior art keywords
fixedly connected
plate
main body
filter
body box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010272090.5A
Other languages
Chinese (zh)
Other versions
CN111336621A (en
Inventor
张良英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG DOWAY ADVANCED TECHNOLOGY Co.,Ltd.
Original Assignee
Zhejiang Doway Advanced Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Doway Advanced Technology Co ltd filed Critical Zhejiang Doway Advanced Technology Co ltd
Priority to CN202010272090.5A priority Critical patent/CN111336621B/en
Publication of CN111336621A publication Critical patent/CN111336621A/en
Application granted granted Critical
Publication of CN111336621B publication Critical patent/CN111336621B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, 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
    • F24F8/108Treatment, 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, 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
    • F24F8/192Treatment, 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/30Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation

Abstract

The invention provides an environment-friendly air purification device, which relates to the field of air purification and comprises a main body box, an adsorption mechanism and a purification mechanism, wherein a suction fan is fixedly connected between two groups of connecting rods, a partition plate is fixedly connected on the inner wall of the main body box, one end of a mounting plate is fixedly connected with the bottom of the partition plate, the other end of the mounting plate is fixedly connected with the bottom of an inner cavity of the main body box, a motor is arranged on one side of the partition plate, a rotating shaft is arranged at the output end of the motor, a filter element is fixedly connected at the tail end of the rotating shaft, and a filter plate is also fixedly connected at the bottom of the partition plate. The height of the whole device can be adjusted, so that the purification area of the whole device is improved, and the purification effect of indoor air is improved.

Description

Environment-friendly air purification device
Technical Field
The invention relates to the field of air purification, in particular to an environment-friendly air purification device.
Background
Along with the development of science and technology, the living standard of people is continuously improved, higher requirements are continuously provided for the quality of life, and substances which are derived from science and technology and harm the health of people are more, such as formaldehyde, particle suspended matters and the like, particularly indoors, and people inhale air doped with the harmful substances for a long time to cause discomfort of the body and are easier to be ill.
Among the prior art, air purification device can be placed to general indoor all, and its internally mounted has the filtering layer, and the air that generally gets into the device by the air intake can flow through above-mentioned filtering layer to remove the harmful substance in the air through this filtering layer.
However, after the air purifier is used for a long time, the filtering effect of the filter element and the filter layer is reduced, the filter layer or the filter element needs to be replaced regularly, the purification cost is improved, the concept of environmental protection and saving is not met, in addition, most of the air purifiers are fixed, the purification area is limited, and the functions of the air purifiers are not fully utilized.
Disclosure of Invention
The present invention is directed to an environment-friendly air purification device to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly air purification device comprises a main body box, an adsorption mechanism and a purification mechanism, wherein the adsorption mechanism comprises a connecting rod, a suction fan, a partition plate, a motor, a rotating shaft, a filter element, a mounting plate and a filter plate, the bottom end of the connecting rod is fixedly connected to the top of an inner cavity of the main body box, the connecting rod is symmetrically provided with two groups, the suction fan is fixedly connected between the two groups of connecting rods, the partition plate is fixedly connected to the inner wall of the main body box, an air inlet of the suction fan is right aligned to the top surface of the partition plate, one end of the mounting plate is fixedly connected to the bottom of the partition plate, the other end of the mounting plate is fixedly connected to the bottom of the inner cavity of the main body box, the motor is arranged on one side of the partition plate, the rotating shaft is arranged at the, and is positioned at one side of the mounting plate close to the inner wall of the main box.
Preferably, purification mechanism includes gas-supply pipe, water tank, connecting pipe, water filling port, gas vent, waterproof filter screen and plasma generator, the water tank is equipped with two sets ofly, and fixed connection is on the both sides inner wall of main part incasement chamber, the connecting pipe intercommunication is two sets of between the water tank, the one end intercommunication of gas-supply pipe is at the output of suction fan, and the other end extends to the inner chamber of water tank, the water filling port intercommunication is on the right side of one of them set of water tank, the gas vent sets up the top at the water tank, waterproof filter screen fixed connection is in the top of water tank inner chamber, plasma generator installs the bottom at the connecting rod.
Preferably, air inlets are formed in two sides of the main box, and the two groups of filter plates are located in the inner cavity of the main box and close to the air inlets.
Preferably, the top fixedly connected with telescopic link of main part case, the one end fixedly connected with fixed plate of main part case is kept away from to the telescopic link, the bottom of main part case is equipped with the draw-in groove, the bottom of main part case is installed through the draw-in groove and is collected the box.
Preferably, the bottom of the main box is provided with a first through groove and a second through groove, the first through groove is provided with two groups and is respectively positioned on one side of the two groups of filter plates close to the air inlet, and the second through groove is positioned in the middle of the bottom of the main box.
Preferably, the intermediate position of baffle is equipped with the through-hole, the filter core is located the through-hole under, the below of filter core is equipped with the curb plate, and the one end fixed connection of curb plate is in one side of mounting panel, still be equipped with the passageway on the mounting panel.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, through the designed adsorption mechanism, dust is sucked from the air inlets at two sides by the suction fan, and is subjected to double filtration by the filter plate and the filter element, so that the dust in the indoor environment is fully absorbed, and is collected by the collection box, so that the dust is convenient to clean.
(2) According to the invention, through the designed purification mechanism and the arranged plasma generator, the air after adsorption and filtration is sterilized and disinfected, and then the air is humidified and discharged by using the water in the water tank, so that the indoor air is prevented from being too dry, and the air purification device is more suitable for the requirements of people.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a top view of the side panel of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-main body box, 2-adsorption mechanism, 201-connecting rod, 202-suction fan, 203-clapboard, 204-motor, 205-rotating shaft, 206-filter element, 207-mounting plate, 208-filter plate, 3-purification mechanism, 301-air pipe, 302-water tank, 303-connecting pipe, 304-water filling port, 305-air outlet, 306-waterproof filter screen, 307-plasma generator, 4-air inlet, 5-telescopic rod, 6-fixing plate, 7-collection box, 8-first through groove, 9-second through groove, 10-through hole and 11-side plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an environment-friendly air purification device comprises a main body box 1, an adsorption mechanism 2 and a purification mechanism 3, wherein the adsorption mechanism 2 comprises connecting rods 201, suction fans 202, a partition plate 203, a motor 204, a rotating shaft 205, a filter element 206, a mounting plate 207 and a filter plate 208, the bottom ends of the connecting rods 201 are fixedly connected to the top of an inner cavity of the main body box 1, two groups of the connecting rods 201 are symmetrically arranged, the suction fans 202 are fixedly connected between the two groups of the connecting rods 201, the partition plate 203 is fixedly connected to the inner wall of the main body box 1, an air inlet of the suction fan 202 is right opposite to the top surface of the partition plate 203, one end of the mounting plate 207 is fixedly connected to the bottom of the partition plate 203, the other end of the mounting plate 207 is fixedly connected to the bottom of the inner cavity of the main body box 1, the motor 204 is installed at one side of, the filter plate 208 is also fixedly attached to the bottom of the partition 203 and is located on the side of the mounting plate 207 near the inner wall of the main body case 1.
Wherein, purification mechanism 3 includes air supply pipe 301, water tank 302, connecting pipe 303, water filling port 304, gas vent 305, waterproof filter screen 306 and plasma generator 307, water tank 302 is equipped with two sets ofly, and fixed connection is on the both sides inner wall of 1 inner chamber of main part case, connecting pipe 303 communicates between two sets of water tank 302, the one end intercommunication of air supply pipe 301 is at the output of suction fan 202, the other end extends to the inner chamber of water tank 302, water filling port 304 communicates on one of them set of water tank 302's right side, gas vent 305 sets up the top at water tank 302, waterproof filter screen 306 fixed connection is in the top of water tank 302 inner chamber, plasma generator 307 installs the bottom at connecting rod 201.
Wherein, the both sides of main part case 1 are equipped with air inlet 4, and filter 208 is equipped with two sets ofly, and is located the position that main part case 1 inner chamber is close to air inlet 4.
Wherein, the top fixedly connected with telescopic link 5 of main part case 1, the one end fixedly connected with fixed plate 6 of main part case 1 is kept away from to telescopic link 5, and the bottom of main part case 1 is equipped with the draw-in groove, and collection box 7 is installed through the draw-in groove in the bottom of main part case 1.
Wherein, the bottom of main part case 1 is equipped with first logical groove 8 and second logical groove 9, and first logical groove 8 is equipped with two sets ofly, and is located the one side that two sets of filter 208 are close to air inlet 4 respectively, and the second leads to the groove 9 and is located the intermediate position of main part case 1 bottom.
The middle position of the partition plate 203 is provided with a through hole 10, the filter element 206 is positioned right below the through hole 10, a side plate 11 is arranged below the filter element 206, one end of the side plate 11 is fixedly connected to one side of the mounting plate 207, and the mounting plate 207 is further provided with a channel.
One specific application of this embodiment is: the device supplies electric energy to electrical elements in the device through an external power supply, controls the on-off of the electrical elements through a control switch, and the telescopic rod is a common commercially available electric push rod and can be directly purchased and used;
firstly, screws are arranged on a fixing plate 6, so that the whole device is arranged on an indoor top plate, when the device is used, the telescopic rod 5 is gradually extended by controlling a switch, meanwhile, the suction fan 202 is started, air enters the main body box 1 from the air inlets 4 at two sides, firstly, dust particles in the air are filtered by the filter plate 208, the dust finally falls into the collection box 7 from the first through groove 8, then the dust further is adsorbed and filtered by the filter element 206 after passing through a channel on the mounting plate 207, and finer dust is removed, meanwhile, plasma is generated, 307 works, the air is sterilized by generated negative ions, the air finally passes through the inner cavity of the suction fan 202, then enters the water tank 302 through the air conveying pipe 301, and is finally filtered by the waterproof filter screen 306 and then is discharged from the air outlet 305;
in addition, after using the device a period, accessible control switch makes suction fan 202 reversal, carries out the wind-blowing clearance to filter core 206, and the dust that falls is reversible to fall into from second logical groove 9 and collects the box 7 in, and the curb plate 11 that the slope set up can effectively prevent the raise dust.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (3)

1. An air purification device of environmental protection which characterized in that: comprises a main body box (1), an adsorption mechanism (2) and a purification mechanism (3), wherein the adsorption mechanism (2) comprises a connecting rod (201), a suction fan (202), a partition plate (203), a motor (204), a rotating shaft (205), a filter core (206), a mounting plate (207) and a filter plate (208), the bottom end of the connecting rod (201) is fixedly connected with the top of the inner cavity of the main body box (1), two groups of connecting rods (201) are symmetrically arranged, the suction fan (202) is fixedly connected between the two groups of connecting rods (201), the partition plate (203) is fixedly connected on the inner wall of the main body box (1), an air inlet of the suction fan (202) is right aligned to the top surface of the partition plate (203), one end of the mounting plate (207) is fixedly connected with the bottom of the partition plate (203), the other end is fixedly connected with the bottom of the inner cavity of the main body box (1), the, the rotating shaft (205) is installed at the output end of the motor (204), the tail end of the rotating shaft (205) extends to the other side of the partition plate (203), the filter element (206) is fixedly connected to the tail end of the rotating shaft (205), and the filter plate (208) is also fixedly connected to the bottom of the partition plate (203) and is positioned on one side, close to the inner wall of the main box (1), of the installing plate (207); the purification mechanism (3) comprises a gas conveying pipe (301), a water tank (302), a connecting pipe (303), a water injection port (304), an exhaust port (305), a waterproof filter screen (306) and a plasma generator (307), wherein the water tank (302) is provided with two groups and fixedly connected to the inner walls of the two sides of the inner cavity of the main body box (1), the connecting pipe (303) is communicated between the two groups of water tanks (302), one end of the gas conveying pipe (301) is communicated with the output end of the suction fan (202), the other end of the gas conveying pipe extends to the inner cavity of the water tank (302), the water injection port (304) is communicated with the right side of one group of water tanks (302), the exhaust port (305) is arranged at the top of the water tank (302), the waterproof filter screen (306) is fixedly connected above the inner cavity of the water tank (302), and the plasma generator (307) is arranged; air inlets (4) are formed in two sides of the main body box (1), and two groups of filter plates (208) are arranged and are positioned in the inner cavity of the main body box (1) and close to the air inlets (4); the top fixedly connected with telescopic link (5) of main part case (1), the one end fixedly connected with fixed plate (6) of main part case (1) are kept away from in telescopic link (5), the bottom of main part case (1) is equipped with the draw-in groove, collection box (7) are installed through the draw-in groove in the bottom of main part case (1).
2. An environmentally friendly air cleaning device as recited in claim 1, wherein: the bottom of main part case (1) is equipped with first logical groove (8) and second and leads to groove (9), first logical groove (8) are equipped with two sets ofly, and are located two sets ofly respectively filter (208) are close to one side of air inlet (4), the second leads to groove (9) and is located the intermediate position of main part case (1) bottom.
3. An environmentally friendly air cleaning device as recited in claim 1, wherein: the intermediate position of baffle (203) is equipped with through-hole (10), filter core (206) are located through-hole (10) under, the below of filter core (206) is equipped with curb plate (11), and the one end fixed connection of curb plate (11) is in one side of mounting panel (207), still be equipped with the passageway on mounting panel (207).
CN202010272090.5A 2020-04-09 2020-04-09 Environment-friendly air purification device Active CN111336621B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010272090.5A CN111336621B (en) 2020-04-09 2020-04-09 Environment-friendly air purification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010272090.5A CN111336621B (en) 2020-04-09 2020-04-09 Environment-friendly air purification device

Publications (2)

Publication Number Publication Date
CN111336621A CN111336621A (en) 2020-06-26
CN111336621B true CN111336621B (en) 2021-01-05

Family

ID=71182654

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010272090.5A Active CN111336621B (en) 2020-04-09 2020-04-09 Environment-friendly air purification device

Country Status (1)

Country Link
CN (1) CN111336621B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114877445B (en) * 2022-04-26 2023-09-08 佛山市和瑞泰智能科技有限公司 Evaporation type humidifier and control method
CN117232072B (en) * 2023-11-13 2024-01-09 中建二局第四建筑工程有限公司 Indoor air conditioning equipment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102188232B1 (en) * 2014-08-28 2020-12-09 주식회사 위니아딤채 Air washer
CN205332373U (en) * 2016-01-15 2016-06-22 万志伟 Automatically cleaning air purification device and window
CN106642373A (en) * 2016-10-31 2017-05-10 哈尔滨朋来科技开发有限公司 Intelligent household air purification device
CN108592175A (en) * 2018-03-01 2018-09-28 尤牧 Air cleaning unit and method a kind of easy to carry and with moistening function
CN108826490A (en) * 2018-05-18 2018-11-16 太仓市思卡拓机械科技有限公司 A kind of multifunctional household air cleaning unit
CN209084953U (en) * 2018-10-16 2019-07-09 广州绿美环保科技有限公司 A kind of photocatalyst net negative ion air cleaner
CN209101455U (en) * 2018-11-13 2019-07-12 重庆亿研环保工程有限公司 A kind of environment-friendly highly efficient air purifier
CN109985451A (en) * 2019-03-21 2019-07-09 青岛海尔空调器有限总公司 The filter screen cleaning method of air purifier
CN110081534B (en) * 2019-05-22 2020-12-04 潘芊璇 Air purifier dust collector
CN210179793U (en) * 2019-06-03 2020-03-24 无锡众邦暖通净化设备有限公司 Air purifying device

Also Published As

Publication number Publication date
CN111336621A (en) 2020-06-26

Similar Documents

Publication Publication Date Title
CN111336621B (en) Environment-friendly air purification device
CN106016525B (en) Multifunctional fresh air purifying integrated machine
CN106705336A (en) Air purifying device
CN111829128A (en) Fresh air system with sterilization and disinfection functions
CN212815439U (en) Bed body structure with air purification function
CN205402952U (en) Air filtering equipment
CN112013484B (en) Air purifier
CN211953161U (en) Ventilation device for high-rise building
CN210179845U (en) Ventilation energy-saving device of green building
CN210399293U (en) Air purification device for biotechnology
CN207350584U (en) Compound dual air clarifier
CN207065751U (en) Multi-functional high-efficient air eliminator
CN207570025U (en) A kind of air cleaning unit of environment
CN207262553U (en) Ceiling mounting type Total heat exchange fresh air purifying all-in-one machine
CN207019219U (en) A kind of family expenses have the air-cooler of detergent power
CN206919304U (en) A kind of fresh air purification device for efficiently removing PM2.5
CN212961940U (en) Fresh air dehumidification all-in-one
CN214287291U (en) Exhaust treatment device for powder preparation workshop of functional ceramics
CN110953658A (en) Miniature wet-type air purifier
CN209840319U (en) Indoor air purification device
CN216620191U (en) Domestic anion air purifier
CN220026507U (en) Dustproof efficient filtering fan
CN213536940U (en) Elevator car air purification system equipment
CN214862259U (en) Energy-concerving and environment-protective type air purification device
CN215002117U (en) Plasma air purifier

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20201209

Address after: 321031 buildings 1, 2 and 3, West Industrial Park, caojiao Town, Jindong District, Jinhua City, Zhejiang Province

Applicant after: ZHEJIANG DOWAY ADVANCED TECHNOLOGY Co.,Ltd.

Address before: 5 / F, building D, No. 64, Jiaokeng 2nd Road, Tongle community, Longgang street, Longgang District, Shenzhen City, Guangdong Province

Applicant before: Shenzhen Yishengyuan water purification industry Co.,Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: An environment-friendly air purification device

Effective date of registration: 20220328

Granted publication date: 20210105

Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch

Pledgor: ZHEJIANG DOWAY ADVANCED TECHNOLOGY Co.,Ltd.

Registration number: Y2022330000411

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20230531

Granted publication date: 20210105

Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch

Pledgor: ZHEJIANG DOWAY ADVANCED TECHNOLOGY Co.,Ltd.

Registration number: Y2022330000411

PC01 Cancellation of the registration of the contract for pledge of patent right