CN212792382U - Degradable plastic recycling device - Google Patents

Degradable plastic recycling device Download PDF

Info

Publication number
CN212792382U
CN212792382U CN202021753773.4U CN202021753773U CN212792382U CN 212792382 U CN212792382 U CN 212792382U CN 202021753773 U CN202021753773 U CN 202021753773U CN 212792382 U CN212792382 U CN 212792382U
Authority
CN
China
Prior art keywords
fixedly connected
degradation
gear
shaft
crushing
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
Application number
CN202021753773.4U
Other languages
Chinese (zh)
Inventor
陈若珠
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN202021753773.4U priority Critical patent/CN212792382U/en
Application granted granted Critical
Publication of CN212792382U publication Critical patent/CN212792382U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/52Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Abstract

The utility model discloses a recovery unit of degradable plastics, including broken case, the upper surface of broken case is provided with the feed inlet, the first motor of right side wall fixedly connected with of broken case, the first cutting axle of output fixedly connected with of first motor, the one end that first motor was kept away from to first cutting axle runs through broken case and extends to the inside of broken case, the first gear of surface fixedly connected with of first cutting axle, one side swing joint that the inside wall of broken case and be located first cutting axle has the second cutting axle, the surface fixedly connected with second gear of second cutting axle. The utility model discloses, through setting up two sets of cutting axles, two sets of broken axles are cut, are broken to degradation plastics, filter through the filter on the collecting vat to the degradation plastics after the breakage filter, cut massive plastics once more broken, and structural design is reasonable, and convenient operation has improved the percentage of damage of degradation plastics.

Description

Degradable plastic recycling device
Technical Field
The utility model relates to a plastics processing retrieves technical field, especially relates to a recovery unit of degradable plastics.
Background
The degradable plastics are plastics which have various properties meeting the use requirements, have unchanged performance in the preservation period and can be degraded into substances harmless to the environment under the natural environment condition after use, and are also called as environment-degradable plastics.
The plastic degradation devices on the market are many, which basically meet the requirements of people for use, but still have certain problems, such as: when the plastic is degraded, the degradation efficiency is influenced due to the large volume, and the broken plastic is precipitated in the degradation liquid, so that the degradation time is long, and the degradation efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a degradable plastic recycling device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a recovery device of degradable plastics comprises a crushing box, wherein a feed inlet is arranged on the upper surface of the crushing box, a first motor is fixedly connected to the right side wall of the crushing box, a first cutting shaft is fixedly connected to the output end of the first motor, one end, far away from the first motor, of the first cutting shaft penetrates through the crushing box and extends to the inside of the crushing box, a first gear is fixedly connected to the outer surface of the first cutting shaft, a second cutting shaft is movably connected to the inner side wall of the crushing box and positioned on one side of the first cutting shaft, a second gear is fixedly connected to the outer surface of the second cutting shaft, cutting pieces are fixedly connected to the outer surfaces of the first cutting shaft and the second cutting shaft and positioned on one side of the first gear and one side of the second gear respectively, a first guide plate is fixedly connected to the inner side wall of the crushing box and positioned below the first cutting shaft, and a baffle is fixedly connected to the lower surface of the first guide plate, the rear surface of the crushing box is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a first crushing shaft, one end of the first crushing shaft, which is far away from the second motor, penetrates through the crushing box and extends into the crushing box, the outer surface of the first crushing shaft is fixedly connected with a third gear, one side of the inner side wall of the crushing box, which is positioned on the first crushing shaft, is movably connected with a second crushing shaft, the outer surface of the second crushing shaft is fixedly connected with a fourth gear, the outer surfaces of the first crushing shaft and the second crushing shaft are respectively positioned on one sides of the third gear and the fourth gear, crushing wheels are fixedly connected with the inner side wall of the crushing box and positioned below the first guide plate, a groove is formed in the inner side wall of the crushing box and positioned below the first guide plate, a collecting groove is movably connected with the inner part of the groove, the inner side wall of the collecting groove and positioned at the bottom are fixedly connected with a filter plate, and, the lower surface of second deflector is provided with the piece entry, the lower fixed surface of broken case is connected with the degradation case, the left side wall fixedly connected with degradation liquid of degradation case adds the pipe, the right side wall fixedly connected with third motor of degradation case, the output fixedly connected with pivot of third motor, the one end that the third motor was kept away from in the pivot runs through the degradation case and extends to the degradation incasement portion, the outer fixed surface of pivot is connected with the swivel leaf, the inside wall fixedly connected with fixed block of degradation case, the inside wall fixedly connected with spiral heating pipe of fixed block.
As a further description of the above technical solution:
the interior bottom fixedly connected with of degradation case arranges the material pipe, arrange the material pipe and keep away from the one end swing joint of degradation case and have the valve.
As a further description of the above technical solution:
the bottom fixedly connected with stand of degradation case, the front surface of broken case and degradation case all is provided with the observation window.
As a further description of the above technical solution:
the first cutting shaft and the second cutting shaft are arranged in parallel, and the cutting pieces on the outer surfaces of the first cutting shaft and the second cutting shaft are arranged in a staggered mode.
As a further description of the above technical solution:
the first crushing shaft and the second crushing shaft are arranged in parallel, and the first crushing shaft and the second crushing shaft are arranged in a space perpendicular to the first cutting shaft and the second cutting shaft.
As a further description of the above technical solution:
the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear.
As a further description of the above technical solution:
the feed inlet is funnel-shaped, the side surface fixedly connected with handle of collecting vat.
The utility model discloses following beneficial effect has:
1. compared with the prior art, this recovery unit of degradable plastics, it rotates through two sets of cutting axles of first motor drive, thereby it cuts degradation plastics to drive the cutting piece, it rotates to drive two sets of broken axles through the second motor, thereby it carries out the breakage to drive the degradation plastics after the cutting of broken wheel pair, filter through on the collecting vat filters the degradation plastics after the breakage, take out the collecting vat, the cubic great degradation plastics after will filtering is poured into from the feed inlet and is broken once more, and reasonable structural design, and convenient for operation has improved the percentage of damage of degradation plastics.
2. Compared with the prior art, this recovery unit of degradable plastics drives the rotating vane through third motor drive pivot and rotates, increases the mobile speed of degradation liquid, through setting up spiral heating pipe, improves the temperature of degradation liquid for degradation liquid is to the degradation speed of degradable plastics, and simple structure has improved degradation efficiency.
Drawings
FIG. 1 is a front sectional view of a recycling device for degradable plastics according to the present invention;
fig. 2 is a side sectional view of a recycling device for degradable plastics according to the present invention;
fig. 3 is a schematic view of a cutting shaft structure of a degradable plastic recycling device provided by the present invention;
FIG. 4 is a schematic structural view of a crushing shaft of the device for recycling degradable plastics of the present invention;
fig. 5 is a schematic structural view a in fig. 1 of a recycling device for degradable plastics according to the present invention;
fig. 6 is a front view of a device for recycling degradable plastics according to the present invention.
Illustration of the drawings:
1. a crushing box; 2. a feed inlet; 3. a first motor; 4. a first cutting shaft; 5. a first gear; 6. cutting the slices; 7. a second cutting shaft; 8. a second gear; 9. a first guide plate; 10. a baffle plate; 11. a second motor; 12. a first crushing shaft; 13. a third gear; 14. a second crushing shaft; 15. a fourth gear; 16. a crushing wheel; 17. a groove; 18. collecting tank; 19. a filter plate; 20. a second guide plate; 21. a debris inlet; 22. a degradation box; 23. a degradation liquid addition pipe; 24. a third motor; 25. a rotating shaft; 26. rotating the leaf; 27. a fixed block; 28. a discharge pipe; 29. a column; 30. an observation window; 31. a spiral heating pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-6, the utility model provides a pair of degradable plastics's recovery unit: comprises a crushing box 1, a feed inlet 2 is arranged on the upper surface of the crushing box 1, a first motor 3 is fixedly connected with the right side wall of the crushing box 1 and used for driving a first cutting shaft 4 and a second cutting shaft 7 to rotate so as to drive a cutting blade 6 to cut degradable plastics, a first cutting shaft 4 is fixedly connected with the output end of the first motor 3, one end of the first cutting shaft 4, which is far away from the first motor 3, penetrates through the crushing box 1 and extends into the crushing box 1, a first gear 5 is fixedly connected with the outer surface of the first cutting shaft 4, a second cutting shaft 7 is movably connected with the inner side wall of the crushing box 1 and is positioned on one side of the first cutting shaft 4, a second gear 8 is fixedly connected with the outer surface of the second cutting shaft 7, the outer surfaces of the first cutting shaft 4 and the second cutting shaft 7 are respectively positioned on the first gear 5, the cutting blade 6 is fixedly connected with one side of the second gear 8 and used for cutting the degradable, the inner side wall of the crushing box 1 is fixedly connected with a first guide plate 9 below a first cutting shaft 4, the cut degradable plastics flow to a crushing wheel 16 through the first guide plate 9, the lower surface of the first guide plate 9 is fixedly connected with a baffle plate 10, the rear surface of the crushing box 1 is fixedly connected with a second motor 11 for driving the first crushing shaft 12 and the second crushing shaft 14 to rotate, so that the cutting degradable plastics are crushed by the crushing wheel 16, the output end of the second motor 11 is fixedly connected with a first crushing shaft 12, one end of the first crushing shaft 12, far away from the second motor 11, penetrates through the crushing box 1 and extends to the inside of the crushing box 1, the outer surface of the first crushing shaft 12 is fixedly connected with a third gear 13, one side, located on the first crushing shaft 12, of the inner side wall of the crushing box 1 is movably connected with a second crushing shaft 14, the outer surface of the second crushing shaft 14 is fixedly connected with a fourth gear 15, the outer surfaces of the first crushing shaft 12 and the second crushing shaft 14 are respectively located on the third gear 13, one side of the fourth gear 15 is fixedly connected with a crushing wheel 16, the inner side wall of the crushing box 1 is located below the first guide plate 9 and is provided with a groove 17 for containing a collecting groove 18, the inner part of the groove 17 is movably connected with the collecting groove 18, the inner side wall of the collecting groove 18 is fixedly connected with a filter plate 19 at the bottom, a large plastic is filtered out through the filter plate 19, the inner side wall of the crushing box 1 is fixedly connected with a second guide plate 20 below the groove 17, the crushed degraded plastic flows to the degradation box 22, the lower surface of the second guide plate 20 is provided with a chip inlet 21, the lower surface of the crushing box 1 is fixedly connected with a degradation box 22, the left side wall of the degradation box 22 is fixedly connected with a degradation liquid adding pipe 23 for adding degradation liquid into the degradation box 22, degradation case 22's right side wall fixedly connected with third motor 24, be used for drive pivot 25 to rotate, thereby drive swivel leaf 26 and rotate, accelerate the flow of degradation liquid, third motor 24's output fixedly connected with pivot 25, the one end that third motor 24 was kept away from to pivot 25 runs through degradation case 22 and extends to inside the degradation case 22, the outer fixed surface of pivot 25 is connected with swivel leaf 26, degradation case 22's inside wall fixedly connected with fixed block 27, fixed block 27's inside wall fixedly connected with spiral heating pipe 31, be used for heating the degradation liquid, accelerate the degradation to plastics.
A material discharging pipe 28 is fixedly connected to the inner bottom of the degradation box 22, a valve is movably connected to one end, far away from the degradation box 22, of the material discharging pipe 28, a stand column 29 is fixedly connected to the bottom of the degradation box 22, observation windows 30 are arranged on the front surfaces of the degradation box 1 and the degradation box 22 and used for observing the working conditions inside the degradation box 1 and the degradation box 22, a first cutting shaft 4 and a second cutting shaft 7 are arranged in parallel, cutting pieces 6 on the outer surfaces of the first cutting shaft 4 and the second cutting shaft 7 are arranged in a staggered mode, a first crushing shaft 12 and a second crushing shaft 14 are arranged in parallel, a first crushing shaft 12 and a second crushing shaft 14 are arranged in a perpendicular mode in space with the first cutting shaft 4 and the second cutting shaft 7, a first gear 5 is meshed with a second gear 8, a third gear 13 is meshed with a fourth gear 15, a feeding port 2 is funnel-shaped, a handle is fixedly connected to the side surface of the collecting tank 18, the collecting tank, the large plastic blocks in the collecting tank 18 can be poured into the crushing box 1 for cutting and crushing again.
The working principle is as follows: when the plastic crusher is used, the first motor 3 is started to drive the first cutting shaft 4 and the second cutting shaft 7 to rotate so as to drive the cutting blade 6 to rotate, the second motor 11 is started to drive the first crushing shaft 12 and the second crushing shaft 14 to rotate so as to drive the crushing wheel 16 to rotate, then the degraded plastic is poured into the crushing box 1 from the feed inlet 2 and is cut through the cutting blade 6, the cut degraded plastic flows to the crushing wheel 16 through the first guide plate 9 to be crushed, the crushed degraded plastic falls into the collecting tank 18 and is filtered through the filter plate 19, the massive plastic is filtered out, the collecting tank 18 is taken out through a handle, the massive plastic is poured into the crushing box 1 from the feed inlet 2 to be cut again and crushed, the plastic falling from the filter plate 19 flows into the degradation box 22 through the second guide plate 20, the degradation liquid is added into the degradation box 22 through the degradation liquid adding pipe 23, the third motor 24 is started to drive the rotating shaft 25 to rotate, so that the rotating blade 26 is driven to rotate, the flowing of degradation liquid is increased, the degradation liquid is heated through the spiral heating pipe 31, and the degradation of the degradation liquid on plastics is accelerated.
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 modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. A recovery unit of degradable plastics, includes broken case (1), its characterized in that: the feeding device is characterized in that a feeding hole (2) is formed in the upper surface of the crushing box (1), a first motor (3) is fixedly connected to the right side wall of the crushing box (1), a first cutting shaft (4) is fixedly connected to the output end of the first motor (3), one end, far away from the first motor (3), of the first cutting shaft (4) penetrates through the crushing box (1) and extends to the inside of the crushing box (1), a first gear (5) is fixedly connected to the outer surface of the first cutting shaft (4), a second cutting shaft (7) is movably connected to one side, located on the first cutting shaft (4), of the inner side wall of the crushing box (1), a second gear (8) is fixedly connected to the outer surface of the second cutting shaft (7), cutting pieces (6) are fixedly connected to one sides, located on the first gear (5) and the second gear (8), of the outer surfaces of the first cutting shaft (4) and the second cutting shaft (7) respectively, the inside wall of broken case (1) and the below fixedly connected with first deflector (9) that is located first cutting axle (4), the lower fixed surface of first deflector (9) is connected with baffle (10), the rear surface fixedly connected with second motor (11) of broken case (1), the first broken axle of output fixedly connected with (12) of second motor (11), the inside that broken case (1) was run through and extended to broken case (1) is kept away from in first broken axle (12), the external surface fixedly connected with third gear (13) of first broken axle (12), one side swing joint that the inside wall of broken case (1) just is located first broken axle (12) has second broken axle (14), the external surface fixedly connected with fourth gear (15) of second broken axle (14), first broken axle (12), The outer surface of the second crushing shaft (14) is respectively positioned on one side of a third gear (13) and one side of a fourth gear (15) and is fixedly connected with a crushing wheel (16), a groove (17) is formed in the inner side wall of the crushing box (1) and positioned below the first guide plate (9), a collecting groove (18) is movably connected in the groove (17), a filter plate (19) is fixedly connected to the inner side wall of the collecting groove (18) and positioned at the bottom, a second guide plate (20) is fixedly connected to the inner side wall of the crushing box (1) and positioned below the groove (17), a fragment inlet (21) is formed in the lower surface of the second guide plate (20), a degradation box (22) is fixedly connected to the lower surface of the crushing box (1), a degradation liquid adding pipe (23) is fixedly connected to the left side wall of the degradation box (22), and a third motor (24) is fixedly connected to the right side wall of the degradation box (22), output fixedly connected with pivot (25) of third motor (24), the one end that third motor (24) were kept away from in pivot (25) runs through degradation case (22) and extends to degradation case (22) inside, the outer fixed surface of pivot (25) is connected with swivel leaf (26), the inside wall fixedly connected with fixed block (27) of degradation case (22), the inside wall fixedly connected with spiral heating pipe (31) of fixed block (27).
2. The recycling device of degradable plastics as claimed in claim 1, wherein: interior bottom fixedly connected with row material pipe (28) of degradation case (22), the one end swing joint that degradation case (22) was kept away from in row material pipe (28) has the valve.
3. The recycling device of degradable plastics as claimed in claim 1, wherein: the bottom fixedly connected with stand (29) of degradation case (22), the front surface of broken case (1) and degradation case (22) all is provided with observation window (30).
4. The recycling device of degradable plastics as claimed in claim 1, wherein: the first cutting shaft (4) and the second cutting shaft (7) are arranged in parallel, and the cutting pieces (6) on the outer surfaces of the first cutting shaft (4) and the second cutting shaft (7) are arranged in a staggered mode.
5. The recycling device of degradable plastics as claimed in claim 1, wherein: the first crushing shaft (12) and the second crushing shaft (14) are arranged in parallel, and the first crushing shaft (12) and the second crushing shaft (14) are arranged in a space perpendicular mode with the first cutting shaft (4) and the second cutting shaft (7).
6. The recycling device of degradable plastics as claimed in claim 1, wherein: the first gear (5) is meshed with the second gear (8), and the third gear (13) is meshed with the fourth gear (15).
7. The recycling device of degradable plastics as claimed in claim 1, wherein: the feed inlet (2) is funnel-shaped, and the side surface of the collecting groove (18) is fixedly connected with a handle.
CN202021753773.4U 2020-08-20 2020-08-20 Degradable plastic recycling device Expired - Fee Related CN212792382U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021753773.4U CN212792382U (en) 2020-08-20 2020-08-20 Degradable plastic recycling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021753773.4U CN212792382U (en) 2020-08-20 2020-08-20 Degradable plastic recycling device

Publications (1)

Publication Number Publication Date
CN212792382U true CN212792382U (en) 2021-03-26

Family

ID=75084475

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021753773.4U Expired - Fee Related CN212792382U (en) 2020-08-20 2020-08-20 Degradable plastic recycling device

Country Status (1)

Country Link
CN (1) CN212792382U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114589195A (en) * 2022-04-01 2022-06-07 贵州师范大学 Degradation treatment equipment and method for plastics in municipal refuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114589195A (en) * 2022-04-01 2022-06-07 贵州师范大学 Degradation treatment equipment and method for plastics in municipal refuse

Similar Documents

Publication Publication Date Title
CN212792382U (en) Degradable plastic recycling device
CN213834809U (en) Sewage treatment plant is used in municipal administration with prevent blockking up mechanism
CN108560520A (en) A kind of mechanical alga removal device
CN114053935A (en) Mixing device convenient to clean and used for lithium battery processing
CN216589141U (en) Submersible sewage pump with cutting and smashing device
CN218013179U (en) Snow removing snow throwing device with smashing structure
CN112302955A (en) Sewage pump device with sundry smashing function
CN204748846U (en) Timber crushing apparatus
CN214637127U (en) Gardens are with separable clastic branch rubbing crusher
CN211946614U (en) Thickener type water treatment equipment
CN215518294U (en) Joint cutter for road construction
CN217615157U (en) Frozen meat mincer
CN213950947U (en) Sludge recycling device for sewage treatment plant
CN218308380U (en) Particle crushing device
CN220859356U (en) Sea buckthorn fruit juice beating machine
CN213114088U (en) Paper machine broken paper treatment pool
CN214209569U (en) Novel be used for production of medical drug material to filter device
CN216997900U (en) Sewage treatment is with high-efficient mud discharging device
CN216662677U (en) Sewage treatment device for solid waste treatment system
CN220215206U (en) Pregelatinized starch reducing mechanism
CN216199316U (en) Slurry pump feeding mechanism
CN213376027U (en) Asphalt emulsifying equipment
CN217747307U (en) Handheld rapid food smashing and sampling machine
CN218687144U (en) Filtration of useless thick liquid pump for useless thick liquid pond
CN220310609U (en) Raw material crushing device for anhydrous sodium sulfate

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: 20210326

Termination date: 20210820

CF01 Termination of patent right due to non-payment of annual fee