CN212594651U - Non-woven fabric production dust collector - Google Patents
Non-woven fabric production dust collector Download PDFInfo
- Publication number
- CN212594651U CN212594651U CN202021010597.5U CN202021010597U CN212594651U CN 212594651 U CN212594651 U CN 212594651U CN 202021010597 U CN202021010597 U CN 202021010597U CN 212594651 U CN212594651 U CN 212594651U
- Authority
- CN
- China
- Prior art keywords
- cavity
- funnel
- woven fabric
- filter screen
- communicated
- 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.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims 2
- 238000010410 dusting Methods 0.000 claims 1
- 230000002441 reversible effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 6
- 241000883990 Flabellum Species 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
The utility model relates to the technical field of air dust removal, in particular to a dust removal device for non-woven fabric production, wherein air enters a cavity through a bent pipe, the contact area between the air and water is increased by opening a water pump, the air is filtered through a first filter screen and a second filter screen sequentially from bottom to top, the air achieves the dust removal effect, and dirt is discharged more easily by opening a first motor, so that the cleaning efficiency is improved, and the practicability is improved; the bin comprises a base, a pillar, a funnel, a bin body, a blow-off pipe and a bent pipe, wherein the top end of the base is connected with the bottom end of the pillar, the top end of the pillar is connected with the bottom end of the funnel, and the pillar supports the funnel; still include bracket, water pumper, inlet tube, outlet pipe, first filter screen, second filter screen and motor cover, the bracket right-hand member is connected with the funnel left end, and the water pumper bottom is connected with the bracket top, and the water pumper top is provided with the output, and the right-hand member of water pumper is provided with the input, and inlet tube left side output is connected with the water pumper input and is communicated with each other.
Description
Technical Field
The utility model relates to a technical field that the air removed dust especially relates to a non-woven fabrics production dust collector.
Background
As is well known, a dust removing device for non-woven fabric production is an auxiliary device for dust removal in non-woven fabric production, and is widely used in the field of air dust removal; the existing dust removal device for non-woven fabric production comprises a base, a support column, a funnel, a bin body, a blow-off pipe and a bent pipe, wherein the top end of the base is connected with the bottom end of the support column, the top end of the support column is connected with the bottom end of the funnel, the support column supports the funnel, the top end of the funnel is connected with the bottom end of the bin body, a cavity is arranged in the bin body, the left side of the top end of the cavity is provided with an air inlet hole, the air inlet hole and the air outlet hole are communicated with the cavity, the input end of the blow-off pipe is arranged at the bottom end of the funnel and communicated with the cavity, the blow; when the existing dust removal device for non-woven fabric production is used, firstly, water is placed at the bottom of a cavity, then, air is placed into the cavity through the input end of a bent pipe, and then, the dust removal is completed, and the air is discharged through the exhaust port of a bin body; present non-woven fabrics production dust collector discovers in using, and current non-woven fabrics production dust collector dust removal effect is relatively poor to cavity bottom dirt should not discharge, leads to dust collection efficiency lower, and the dirt discharge is relatively poor, and the practicality is relatively poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an inside air gets into the cavity through the return bend, through opening the water pumper, make air and water increase area of contact, the air loops through first filter screen and second filter screen to filtration from supreme down, makes the air reach the dust removal effect, through opening first motor, makes the dirt discharge more easily, improves clean efficiency, improves a non-woven fabrics production dust collector of practicality.
The utility model discloses a non-woven fabric production dust collector, including base, pillar, funnel, the storehouse body, blow off pipe and return bend, the base top is connected with the pillar bottom, the pillar top is connected with the funnel bottom and the pillar plays the supporting role to the funnel, the funnel top is connected with storehouse body bottom and the storehouse is internal to be provided with the cavity, the cavity top is provided with the inlet port left side and is provided with the exhaust hole, inlet port and exhaust hole all communicate with each other with the cavity, the blow off pipe input is set up in the funnel bottom and communicates with each other with cavity internal connection, be provided with the valve on the blow off pipe, the valve sets up at the blow off pipe output, the return bend input sets up in; the water pump also comprises a bracket, a water pump, a water inlet pipe, a water outlet pipe, a first filter screen, a second filter screen and a motor cover, wherein the right end of the bracket is connected with the left end of the funnel, the bottom end of the water pump is connected with the top end of the bracket, the top end of the water pump is provided with an output end, the right end of the water pump is provided with an input end, the left output end of the water inlet pipe is connected and communicated with the input end of the water pump, the right input end of the water inlet pipe is arranged in the cavity and is connected and communicated with the cavity, the input end of the water outlet pipe is connected and communicated with the output end of the water pump, the output end of the water outlet pipe is respectively provided with a first spray and a second spray, the input ends of the first spray and the second spray are connected and communicated with the output end of the water outlet pipe, and the motor cover is provided with a case chamber, a first motor and a gearbox are arranged in the case chamber, the right output end of the first motor is connected with the left input end of the gearbox, the output end of the top end of the gearbox is longitudinally provided with a transmission shaft, a stirring rod is arranged on the transmission shaft, and the stirring rod is arranged in the cavity.
The utility model discloses a non-woven fabrics production dust collector still includes fan casing and second motor, and the fan casing bottom is connected with storehouse body top to be provided with the plenum chamber in the fan casing, the plenum chamber is connected with the cavity gas vent and is communicated with each other, and the second motor setting is in fan casing inside wall bottom, and second motor top output vertically is provided with the flabellum, and the flabellum setting is in the plenum chamber.
The utility model discloses a non-woven fabrics production dust collector still includes access hole, sealing door and standing valve, and the access hole left end is connected with the cavity and communicates with each other, and the access hole right-hand member is connected with the sealing door that can overturn, and the sealing door right-hand member is provided with the handle, and the standing valve setting is at the sealing door lower extreme to be connected fixedly with the access hole.
The utility model discloses a non-woven fabrics production dust collector still includes heating rod and heat preservation cotton, and the heating rod right-hand member is connected with the funnel lateral wall, and the left end communicates with each other with the cavity in-connection, and the cotton inside wall that keeps warm is connected with funnel and storehouse body lateral wall.
The utility model discloses a non-woven fabrics production dust collector still includes the thermometer, and the thermometer setting is on storehouse body lateral wall.
The utility model discloses a non-woven fabrics production dust collector still includes the observation window, and the observation window right-hand member is connected with storehouse body left end.
The utility model discloses a non-woven fabrics production dust collector still includes electrostatic treatment ware, electrostatic treatment ware left end and bin body outer wall connection, and the right-hand member communicates with each other with the cavity in-connection.
The utility model discloses a non-woven fabrics production dust collector, the upper and lower both sides of puddler all are provided with the scraper blade.
Compared with the prior art, the beneficial effects of the utility model are that: inside the air passes through the return bend entering cavity, through opening the water pumper, the water pumper transmission water flows extremely down from last in the cavity, makes air and water increase area of contact, and the air loops through first filter screen and second filter screen to filtration from supreme down, makes the air reach the dust removal effect, improves air dust collection efficiency, and through opening first motor, first motor drive puddler stirs the dirt bottom the cavity, makes the dirt discharge more easily, improves clean efficiency, improves the practicality.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged schematic view of the motor cover and transmission case;
FIG. 3 is an enlarged schematic view of the carriage and pump;
FIG. 4 is an enlarged view of the second motor and fan blades;
in the drawings, the reference numbers: 1. a base; 2. a pillar; 3. a funnel; 4. a bin body; 5. a blow-off pipe; 6. a valve; 7. bending the pipe; 8. a bracket; 9. a water pump; 10. a water inlet pipe; 11. a water outlet pipe; 12. first spraying; 13. second spraying; 14. a first filter screen; 15. a second filter screen; 16. a motor cover; 17. a first motor; 18. a gearbox; 19. a drive shaft; 20. a stirring rod; 21. a fan housing; 22. a second motor; 23. a fan blade; 24. an access hole; 25. a sealing door; 26. a handle; 27. a fixed valve; 28. a heating rod; 29. heat preservation cotton; 30. a thermometer; 31. an observation window; 32. an electrostatic processor.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the utility model discloses a dust removing device for non-woven fabric production, including base 1, pillar 2, funnel 3, storehouse body 4, blow off pipe 5 and return bend 7, base 1 top is connected with pillar 2 bottom, pillar 2 top is connected with funnel 3 bottom and pillar 2 plays the supporting role to funnel 3, funnel 3 top is connected with storehouse body 4 bottom and the storehouse body 4 is provided with the cavity, the cavity top is provided with the inlet port left side and is provided with the exhaust hole, inlet port and exhaust hole all communicate with the cavity, blow off pipe 5 input is provided in funnel 3 bottom and communicates with each other with cavity in-connection, be provided with valve 6 on blow off pipe 5, valve 6 sets up at blow off pipe 5 output, return bend 7 input sets up in storehouse body 4 lateral wall left side, and communicates with each other with cavity air inlet connection; the device also comprises a bracket 8, a water pump 9, a water inlet pipe 10, a water outlet pipe 11, a first filter screen 14, a second filter screen 15 and a motor cover 16, wherein the right end of the bracket 8 is connected with the left end of the funnel 3, the bottom end of the water pump 9 is connected with the top end of the bracket 8, the top end of the water pump 9 is provided with an output end, the right end of the water pump is provided with an input end, the left output end of the water inlet pipe 10 is connected and communicated with the input end of the water pump 9, the right input end of the water inlet pipe 10 is arranged in the cavity and is connected and communicated with the cavity, the input end of the water outlet pipe 11 is connected and communicated with the output end of the water pump 9, the output end of the water outlet pipe 11 is respectively provided with a first spray 12 and a second spray 13, the output ends of the first spray 12 and the second spray, the first filter screen 14 and the second filter screen 15 are arranged in the cavity, the top end of the motor cover 16 is connected with the bottom end of the funnel 3, the motor cover 16 is provided with a machine box chamber, a first motor 17 and a gearbox 18 are arranged in the machine box chamber, the right side output end of the first motor 17 is connected with the left side input end of the gearbox 18, the top end output end of the gearbox 18 is longitudinally provided with a transmission shaft 19, the transmission shaft 19 is provided with a stirring rod 20, and the stirring rod 20 is arranged in the cavity; inside the air passes through return bend 7 entering cavity, through opening water pump 9, water pump 9 transmission water flows down from last in the cavity, make air and water increase area of contact, the air is supreme from down loops through first filter screen 14 and second filter screen 15 to the air filtration, make the air reach the dust removal effect, improve air dust collection efficiency, through opening first motor 17, first motor 17 transmission puddler 20 stirs the bottom dirt of cavity, make the dirt discharge more easily, improve clean efficiency, and the practicality is improved.
The utility model discloses a dust collector for non-woven fabric production, which also comprises a fan cover 21 and a second motor 22, wherein the bottom end of the fan cover 21 is connected with the top end of the bin body 4, a ventilation chamber is arranged in the fan cover 21 and is communicated with a cavity exhaust port, the second motor 22 is arranged at the bottom end of the inner side wall of the fan cover 21, the output end of the top end of the second motor 22 is longitudinally provided with a fan blade 23, and the fan blade 23 is arranged in the ventilation chamber; after the air dust removal is finished, the second motor 22 is opened, the second motor 22 drives the fan blades 23 to rotate, air in the cavity is discharged at an accelerated speed, the air dust removal efficiency is improved, and the practicability is improved.
The utility model discloses a dust collector for non-woven fabric production, which also comprises an access hole 24, a sealing door 25 and a fixed valve 27, wherein the left end of the access hole 24 is communicated with the chamber, the right end of the access hole is connected with the turnover sealing door 25, the right end of the sealing door 25 is provided with a handle 26, and the fixed valve 27 is arranged at the lower end of the sealing door 25 and is fixedly connected with the access hole 24; through setting up access hole 24, be convenient for maintain and maintain the cavity inside, through setting up sealing door 25, improve the sealed effect of cavity, improve the practicality.
The dust removing device for non-woven fabric production of the utility model also comprises a heating rod 28 and heat preservation cotton 29, the right end of the heating rod 28 is connected with the outer side wall of the funnel 3, the left end is communicated with the inner part of the cavity, and the inner side wall of the heat preservation cotton 29 is connected with the funnel 3 and the outer side wall of the bin body 4; dust collecting equipment is at 0 ℃ and the following during operation under the cold condition, through opening heating rod 28, heating rod 28 heats bottom water in to the cavity, makes water normally flow, through setting up heat preservation cotton 29, improves the heat insulating ability in the cavity, improves the practicality.
The non-woven fabric production dust removal device of the utility model also comprises a thermometer 31, wherein the thermometer 31 is arranged on the outer side wall of the bin body 4; through setting up thermometer 31, be convenient for read the 4 outside wall temperatures in storehouse body, improve the convenience.
The dust removing device for the non-woven fabric production of the utility model also comprises an observation window 31, and the right end of the observation window 31 is connected with the left end of the bin body 4; through setting up observation window 31, be convenient for observe intracavity behavior, improve the convenience.
The dust removing device for non-woven fabric production of the utility model also comprises an electrostatic processor 32, the left end of the electrostatic processor 32 is connected with the outer wall of the bin body 4, and the right end is communicated with the inside of the chamber; the static electricity processor 32 is arranged to help eliminate static electricity in the air in the chamber, and the use safety is improved.
The utility model discloses a non-woven fabric production dust removal device, the upper and lower sides of a stirring rod are both provided with scrapers; through the arrangement, the bottom of the cavity is convenient to clean, the cleaning effect is improved, and the convenience is improved.
The utility model discloses a non-woven fabric production dust collector, it is at work, at first put into the cavity bottom with water, later put into the cavity through return bend 7 input with the air, the air passes through return bend 7 and gets into the cavity inside, through opening water pump 9, make air and water increase area of contact, the air loops through first filter screen 14 and second filter screen 15 from the bottom to the supreme and filters the air, make the air reach dust removal effect, through opening first motor 17, make the dirt discharge more easily, improve clean efficiency, through opening second motor 22 after the air removes dust and accomplishes, second motor 22 drives flabellum 23 and rotates, make the air in the cavity discharge with higher speed, through setting up access hole 24, be convenient for maintain and maintain the cavity inside, through setting up sealing door 25, improve the sealed effect of cavity, dust collecting equipment is when working under 0 ℃ and below cold condition, through opening heating rod 28, heating rod 28 heats bottom water in to the cavity, makes water normally flow, through setting up heat preservation cotton 29, improves heat insulating ability in the cavity, through setting up thermometer 31, is convenient for read the 4 outside lateral wall temperatures in the storehouse body, through setting up observation window 31, is convenient for observe intracavity behavior, helps the interior neutralization of static electricity in the air of cavity through setting up electrostatic processor 32, improves the safety in utilization.
The non-woven fabric production dust removal device of the utility model adopts a common mechanical mode, such as an installation mode, a connection mode or a setting mode, and can be implemented as long as beneficial effects can be achieved; the utility model discloses a non-woven fabrics production dust collector's water pumper 9, first motor 17, second motor 22, heating rod 28, thermometer 31, electrostatic processor 32 for purchase on the market, this industry technical staff only need according to its subsidiary operating specification install and operate can.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A non-woven fabric production dust removal device, which comprises a base (1), a pillar (2) and a funnel (3), the device comprises a bin body (4), a blow-off pipe (5) and a bent pipe (7), wherein the top end of a base (1) is connected with the bottom end of a support column (2), the top end of the support column (2) is connected with the bottom end of a funnel (3) and the support column (2) supports the funnel (3), the top end of the funnel (3) is connected with the bottom end of the bin body (4) and a cavity is arranged in the bin body (4), an air inlet hole is formed in the left side of the top end of the cavity, the air inlet hole and the air outlet hole are communicated with the cavity, the input end of the blow-off pipe (5) is arranged at the bottom end of the funnel (3) and communicated with the cavity in a connecting manner, a valve (6) is arranged on the blow-off pipe (5), the valve (6) is; it is characterized by also comprising a bracket (8), a water pump (9), a water inlet pipe (10), a water outlet pipe (11), a first filter screen (14), a second filter screen (15) and a motor cover (16), wherein the right end of the bracket (8) is connected with the left end of the funnel (3), the bottom end of the water pump (9) is connected with the top end of the bracket (8), the top end of the water pump (9) is provided with an output end, the right end of the water pump is provided with an input end, the left output end of the water inlet pipe (10) is connected and communicated with the input end of the water pump (9), the right input end of the water inlet pipe (10) is arranged in the cavity and is connected and communicated with the cavity, the input end of the water outlet pipe (11) is connected and communicated with the output end of the water pump (9), the output end of the water outlet pipe (11) is respectively provided with a first spray (12, and first spray (12) and the second sprays (13) the output and all sets up in the cavity, first filter screen (14) and second filter screen (15) are connected with storehouse body (4) inside wall, and first filter screen (14) and second filter screen (15) all set up in the cavity, motor cover (16) top is connected with funnel (3) bottom, and motor cover (16) set up a machine case room, be provided with first motor (17) and gearbox (18) in the machine case room, first motor (17) right side output is connected with gearbox (18) left side input, gearbox (18) top output is provided with vertically and has transmission shaft (19), be provided with puddler (20) on transmission shaft (19), and puddler (20) set up inside the cavity.
2. The non-woven fabric production dust removal device according to claim 1, further comprising a fan cover (21) and a second motor (22), wherein the bottom end of the fan cover (21) is connected with the top end of the bin body (4), a ventilation chamber is arranged in the fan cover (21), the ventilation chamber is connected and communicated with an exhaust port of the chamber, the second motor (22) is arranged at the bottom end of the inner side wall of the fan cover (21), fan blades (23) are longitudinally arranged at the output end of the top end of the second motor (22), and the fan blades (23) are arranged in the ventilation chamber.
3. The non-woven fabric production dust removal device according to claim 2, further comprising an access opening (24), a sealing door (25) and a fixed valve (27), wherein the left end of the access opening (24) is connected and communicated with the chamber, the right end of the access opening is connected with the reversible sealing door (25), the right end of the sealing door (25) is provided with a handle (26), and the fixed valve (27) is arranged at the lower end of the sealing door (25) and is fixedly connected with the access opening (24).
4. The non-woven fabric production dust removal device of claim 3, further comprising a heating rod (28) and heat insulation cotton (29), wherein the right end of the heating rod (28) is connected with the outer side wall of the funnel (3), the left end of the heating rod is connected and communicated with the inside of the chamber, and the inner side wall of the heat insulation cotton (29) is connected with the outer side walls of the funnel (3) and the bin body (4).
5. A dusting device for non-woven fabric production, according to claim 4, characterised in that it further comprises a thermometer (30), the thermometer (30) being arranged on the outer side wall of the chamber body (4).
6. The non-woven fabric production dedusting device according to claim 5, characterized in that the device further comprises an observation window (31), and the right end of the observation window (31) is connected with the left end of the bin body (4).
7. The non-woven fabric production dedusting device according to claim 6, characterized in that the device further comprises an electrostatic processor (32), wherein the left end of the electrostatic processor (32) is connected with the outer wall of the bin body (4), and the right end is communicated with the inside of the chamber.
8. The dust removing apparatus for non-woven fabric production according to claim 1, wherein scrapers are provided on both upper and lower sides of the stirring rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021010597.5U CN212594651U (en) | 2020-06-04 | 2020-06-04 | Non-woven fabric production dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021010597.5U CN212594651U (en) | 2020-06-04 | 2020-06-04 | Non-woven fabric production dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212594651U true CN212594651U (en) | 2021-02-26 |
Family
ID=74722143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021010597.5U Expired - Fee Related CN212594651U (en) | 2020-06-04 | 2020-06-04 | Non-woven fabric production dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212594651U (en) |
-
2020
- 2020-06-04 CN CN202021010597.5U patent/CN212594651U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110160174B (en) | Air purification device of toilet | |
| CN201132093Y (en) | Foam type dust collecting device | |
| CN108006740A (en) | Self-cleaning kitchen hood and its cleaning control method | |
| CN208887175U (en) | A kind of air source heat pump evaporator automatic cleaning apparatus | |
| CN207094696U (en) | Self-cleaning kitchen hood | |
| CN213687119U (en) | Smoke exhaust fan convenient to install | |
| CN212594651U (en) | Non-woven fabric production dust collector | |
| CN108548274A (en) | A kind of air-conditioning dust filtering board cleaning method | |
| CN206642542U (en) | A kind of construction dust arrester | |
| CN211400035U (en) | Indoor unit of air conditioner | |
| CN219474350U (en) | Flue gas waste heat recovery device | |
| CN107213711A (en) | One kind is used for waste gas exhaust filtering net automatic cleaning apparatus | |
| CN201648785U (en) | Dry washer | |
| CN212215022U (en) | Smelting pot cooling environmental protection dust collecting equipment | |
| CN216199301U (en) | But self-cleaning type air discharge fan filter mantle | |
| CN205261687U (en) | Self -cleaning range hood worm frame | |
| CN207950996U (en) | A kind of cleaner for building of filter cylinder filtering | |
| CN207786226U (en) | A kind of cleaner for building of interval air inlet | |
| CN112628933A (en) | Household movable air purifier | |
| CN217327390U (en) | Mining axial-flow type wet dust removal fan | |
| CN216308642U (en) | Dust-removing dust-collecting hood for melting and heat-preserving furnace | |
| CN108534341A (en) | A kind of self-cleaning intelligent air condition | |
| CN220736825U (en) | Cleaning device for automatic dust removing equipment | |
| CN109758864A (en) | High effect dust cleaner is used in a kind of construction protection | |
| CN214746116U (en) | Air conditioning equipment with automatic dust removal function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |