CN213528555U - Avoid accumulational fertilizer production prilling granulator of material - Google Patents
Avoid accumulational fertilizer production prilling granulator of material Download PDFInfo
- Publication number
- CN213528555U CN213528555U CN202022048323.1U CN202022048323U CN213528555U CN 213528555 U CN213528555 U CN 213528555U CN 202022048323 U CN202022048323 U CN 202022048323U CN 213528555 U CN213528555 U CN 213528555U
- Authority
- CN
- China
- Prior art keywords
- device main
- main part
- fertilizer production
- granulation
- screening
- 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
- 239000000463 material Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000003337 fertilizer Substances 0.000 title claims abstract description 15
- 238000005469 granulation Methods 0.000 claims abstract description 30
- 230000003179 granulation Effects 0.000 claims abstract description 30
- 238000012216 screening Methods 0.000 claims abstract description 30
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000003895 organic fertilizer Substances 0.000 claims description 22
- 238000009825 accumulation Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 9
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 13
- 241001465754 Metazoa Species 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000010828 animal waste Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 230000001863 plant nutrition Effects 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Landscapes
- Fertilizers (AREA)
Abstract
The utility model discloses an avoid accumulational fertilizer production prilling granulator of material, including device main part, screening board, screening mechanism, extrusion piece and squeeze roll, all be fixed with spacing frame on the two inside walls of device main part, and the central point of spacing frame bottom puts the department and installs spacing spring to the backup pad is installed to one side on spacing spring top, and the both sides on backup pad top all articulate there is the brush roller, all articulate on the inner wall of device main part one side has the axis of rotation, and the one end of axis of rotation is fixed with second conical gear, and one side on axis of rotation surface installs the squeeze roll, and one side on squeeze roll surface is provided with the granulation groove, the cylinder is installed to one side on device main part top. The utility model discloses not only avoid the inside too much raw material layer of collecting together of device, the operation convenience of reinforcing device, hoisting device's granulation efficiency still improves the product quality of fertilizer.
Description
Technical Field
The utility model relates to a fertilizer production granulation technical field specifically is an avoid accumulational fertilizer production prilling granulator of material.
Background
The organic fertilizer is mainly from plants and/or animals, is applied to soil to provide plant nutrition, is a carbon-containing material with main functions, is processed by biological substances, animal and plant wastes and plant residues, eliminates toxic and harmful substances in the organic fertilizer, and is usually prepared into particles by a granulating device in order to facilitate the fertilization of crops in the use process of the organic fertilizer.
The organic fertilizer production granulating device on the market is various in types, can basically meet the use requirements of people, but still has certain defects, and has the following specific problems.
(1) When the existing organic fertilizer production granulation device is used, the raw material blanking rate is difficult to control, and a thick raw material layer can be formed in the device when the rate is too high, so that the organic fertilizer particles are prevented from being formed, and inconvenience is brought to the operation of workers;
(2) in the granulation process of the existing organic fertilizer production granulation device, organic fertilizer particles are easy to adhere to a granulation groove, so that materials are easy to accumulate in the device, the device is seriously blocked and can not run, and the granulation efficiency of the device is reduced;
(3) the existing granulation device for producing the organic fertilizer is difficult to separate unused materials from formed particles after granulation is finished, so that raw materials are mixed in the formed particles, and the product quality of the organic fertilizer is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an avoid accumulational fertilizer production prilling granulator of material to the unloading speed that provides the device among the above-mentioned background art is difficult to control, and the device is easily piled up the problem of material and inconvenient filter particle impurity.
In order to achieve the above object, the utility model provides a following technical scheme: an organic fertilizer production granulating device capable of avoiding material accumulation comprises a device main body, a screening plate, a screening mechanism, an extrusion block and an extrusion roller, wherein limiting frames are fixed on two inner side walls of the device main body, a limiting spring is installed at the central position of the bottom of the limiting frame, a supporting plate is installed on one side of the top end of the limiting spring, brush rollers are hinged to two sides of the top end of the supporting plate, a rotating shaft is hinged to the inner wall of one side of the device main body, a second conical gear is fixed to one end of the rotating shaft, the extrusion roller is installed on one side of the surface of the rotating shaft, a granulating groove is formed in one side of the surface of the extrusion roller, an air cylinder is installed on one side of the top end of the device main body, the extrusion block is installed on one side of the bottom end of the air cylinder, the screening plate is slidably installed on, install control panel on the outer wall of device main part one side, the output of the inside singlechip of control panel and the input electric connection of cylinder coordinate the inside electrical equipment of device through control panel and carry out work.
Preferably, a driving motor is installed on the outer wall of one side of the device main body, a driving rotating shaft is installed at the output end of the driving motor through a coupler, a first bevel gear is installed on one side of the bottom end of the driving rotating shaft, and the first bevel gear and the second bevel gear are meshed with each other.
Preferably, a feeding opening is installed on one side of the top of the device main body, a screw rod is installed on the top of the device main body on one side of the feeding opening, a sliding block is installed at the thread position on one side of the surface of the screw rod, and a material baffle is fixed on one side of the bottom end of the sliding block.
Preferably, the inside of screening mechanism has set gradually support frame, first motor, first pivot, carousel, crank connecting rod, connecting block and spacing, be fixed with the support frame on the outer wall of device main part one side, and the first motor is installed to one side on support frame top to the output of first motor passes through the shaft coupling and installs first pivot.
Preferably, a turntable is installed at one end of the first rotating shaft, and a crank connecting rod is hinged to one side of the surface of the turntable.
Preferably, the one end of crank connecting rod articulates there is the connecting block, the one end of connecting block and the one end fixed connection of screening board, and the device main part inside of connecting block one end is fixed with the spacing, through the setting of screening mechanism, can get rid of the impurity in the fertilizer granule.
Compared with the prior art, the beneficial effects of the utility model are that: the organic fertilizer production granulating device capable of avoiding material accumulation not only avoids excessive raw material layers accumulated in the device, enhances the operation convenience of the device, improves the granulating efficiency of the device, but also improves the product quality of the organic fertilizer;
(1) the material is placed into the device main body through the feeding port by arranging the sliding block and the material baffle plate, then the screw rod is manually rotated, so that the sliding block horizontally moves on the thread surface of the screw rod, when the sliding block moves towards the right side, the sliding block can drive the material baffle plate to move towards the right side, the bottom inlet of the feeding port is gradually in an open state, the discharging speed of the material is increased at the moment, the falling speed of the material is controlled, excessive raw material layers are prevented from being accumulated in the device, and the operation convenience of the device is enhanced;
(2) through being provided with first conical gear and spacing frame, control driving motor through control panel and carry out work, make it drive the drive pivot, first conical gear is rotatory, because first conical gear and second conical gear intermeshing, then two sets of squeeze rolls are the opposite direction and rotate, thereby make the material between the squeeze roll get into the inside of granulation groove, make the material extruded and be the granule, because be fixed with spacing frame on the both sides inner wall of device main part, spacing spring in the spacing frame promotes backup pad and brush roller all the time and moves to the direction of squeeze roll, namely brush roller contacts with squeeze roll each other all the time, thereby sweep the granule of adhesion in the granulation groove, avoid the granulation district of squeeze roll department to appear the phenomenon of material pile up, promote the granulation efficiency of the device;
(3) through being provided with carousel and crank connecting rod, the first motor of accessible control panel control carries out work, make it drive first pivot in proper order, the carousel rotates, because the connecting block passes through crank connecting rod and connects on the carousel, then the rotation of carousel can be converted into the horizontal reciprocating motion of connecting block and screening board under crank connecting rod connects, thereby make the continuous removal about the screening board remove, raw materials and the fertilizer granule of tiny granule to the large granule separate promptly, avoid thoughtlessly having the material in the fashioned fertilizer granule, improve the product quality of fertilizer.
Drawings
Fig. 1 is a schematic view of a front view cross-sectional structure of the present invention;
FIG. 2 is a schematic top view of a partial structure of the device body of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 4 is an enlarged schematic view of the sieving mechanism of the present invention;
in the figure: 1. a device main body; 2. a screening plate; 3. a screening mechanism; 301. a support frame; 302. a first motor; 303. a first rotating shaft; 304. a turntable; 305. a crank connecting rod; 306. connecting blocks; 307. a limiting frame; 4. a limiting frame; 5. a limiting spring; 6. a support plate; 7. a rotating shaft; 8. extruding the block; 9. a cylinder; 10. a squeeze roll; 11. a granulation tank; 12. a brush roller; 13. a control panel; 14. a second bevel gear; 15. a drive motor; 16. driving the rotating shaft; 17. a first bevel gear; 18. a feeding port; 19. a screw; 20. a slider; 21. a striker plate.
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.
Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides an organic fertilizer production prilling granulator who avoids material to pile up, including device main part 1, screening board 2, screening mechanism 3, extrusion piece 8 and squeeze roll 10, all be fixed with spacing frame 4 on the two inside walls of device main part 1, and the central point department of spacing frame 4 bottom installs spacing spring 5, and one side at spacing spring 5 top installs backup pad 6, the both sides at backup pad 6 top all articulate has brush roller 12, all articulate on the inner wall of device main part 1 one side has axis of rotation 7, the one end of axis of rotation 7 is fixed with second conical gear 14, and one side on axis of rotation 7 surface installs extrusion roll 10, and one side on extrusion roll 10 surface is provided with granulation groove 11, one side on device main part 1 top installs cylinder 9, the model of this cylinder 9 can be SC50X20, and one side of cylinder 9 bottom installs extrusion piece 8;
a driving motor 15 is installed on the outer wall of one side of the device main body 1, the type of the driving motor 15 can be RS-385SH, the output end of the driving motor 15 is provided with a driving rotating shaft 16 through a coupler, one side of the bottom end of the driving rotating shaft 16 is provided with a first bevel gear 17, and the first bevel gear 17 is meshed with the second bevel gear 14;
the driving motor 15 is controlled to work through the control panel 13, so that the driving motor drives the driving rotating shaft 16 and the first bevel gear 17 to rotate, the first bevel gear 17 and the second bevel gear 14 are meshed with each other, the two groups of extrusion rollers 10 rotate in opposite directions, materials between the extrusion rollers 10 enter the granulation groove 11, and are extruded into particles, and the limiting frames 4 are fixed on the inner walls of the two sides of the device main body 1, so that the limiting springs 5 in the limiting frames 4 always push the supporting plate 6 and the brush rollers 12 to move towards the extrusion rollers 10, namely the brush rollers 12 are always in contact with the extrusion rollers 10, so that the particles adhered to the inside of the granulation groove 11 are swept down, the phenomenon of material accumulation in a granulation area at the extrusion rollers 10 is avoided, and the granulation efficiency of the device is improved;
a feeding port 18 is arranged on one side of the top of the device main body 1, a screw rod 19 is arranged on the top of the device main body 1 on one side of the feeding port 18, a sliding block 20 is arranged at the thread position on one side of the surface of the screw rod 19, and a material baffle plate 21 is fixed on one side of the bottom end of the sliding block 20;
the material is placed into the device main body 1 through the material inlet 18, then the screw rod 19 is manually rotated, the sliding block 20 horizontally moves on the thread surface of the screw rod 19, when the sliding block 20 moves towards the right side, the sliding block 20 can drive the material baffle plate 21 to move towards the right side, the inlet at the bottom end of the material inlet 18 is gradually in an open state, the material discharging speed of the material is increased at the moment, the material falling speed is controlled, and excessive material layers are prevented from being accumulated in the device;
a screening plate 2 is slidably mounted on one side inside the device main body 1, and a screening mechanism 3 is arranged on the outer wall of the device main body 1 on one side of the screening plate 2;
the sieving mechanism 3 is internally provided with a support frame 301, a first motor 302, a first rotating shaft 303, a rotating disc 304, a crank connecting rod 305, a connecting block 306 and a limiting frame 307 in sequence, the support frame 301 is fixed on the outer wall of one side of the device main body 1, the first motor 302 is installed on one side of the top end of the support frame 301, the type of the first motor 302 can be Y315M-2, the output end of the first motor 302 is provided with the first rotating shaft 303 through a coupler, one end of the first rotating shaft 303 is provided with the rotating disc 304, and one side of the surface of the rotating disc 304 is hinged with the crank connecting rod 305;
one end of the crank connecting rod 305 is hinged with a connecting block 306, one end of the connecting block 306 is fixedly connected with one end of the screening plate 2, and a limiting frame 307 is fixed inside the device body 1 at one end of the connecting block 306;
the first motor 302 is controlled to work through the control panel 13, so that the first motor sequentially drives the first rotating shaft 303 and the rotating disc 304 to rotate, and the connecting block 306 is connected to the rotating disc 304 through the crank connecting rod 305, so that the rotation of the rotating disc 304 can be converted into horizontal reciprocating motion of the connecting block 306 and the screening plate 2 under the connection of the crank connecting rod 305, so that the screening plate 2 continuously moves left and right, namely large-particle raw materials and small-particle organic fertilizer particles are separated, the formed organic fertilizer particles are prevented from being mixed with materials, and the product quality of the organic fertilizer is improved;
the outer wall of one side of the device main body 1 is provided with a control panel 13, the type of the control panel 13 can be MAM-330, and the output end of a singlechip in the control panel 13 is electrically connected with the input ends of the first motor 302, the air cylinder 9 and the driving motor 15.
The working principle is as follows: when the device is used, firstly, materials are placed into the device main body 1 through the material inlet 18, then the screw rod 19 is manually rotated, the sliding block 20 horizontally moves on the thread surface of the screw rod 19, when the sliding block 20 moves towards the right side, the sliding block 20 can drive the material baffle plate 21 to move towards the right side, the bottom inlet of the material inlet 18 is gradually opened, the blanking rate of the materials is increased at the moment, the falling rate of the materials is controlled, excessive material layers in the device are prevented from being accumulated, the operation convenience of the device is enhanced, the driving motor 15 is controlled to work through the control panel 13, the driving rotating shaft 16 and the first conical gear 17 are driven to rotate, the two groups of extrusion rollers 10 rotate in opposite directions due to the mutual meshing of the first conical gear 17 and the second conical gear 14, so that the materials between the extrusion rollers 10 enter the granulation groove 11, and the materials are extruded into particles, because the inner walls of the two sides of the device main body 1 are both fixed with the limiting frames 4, the limiting springs 5 inside the limiting frames 4 always push the supporting plate 6 and the brush rollers 12 to move towards the direction of the extrusion rollers 10, namely the brush rollers 12 always contact with the extrusion rollers 10, so that the granules adhered inside the granulation tank 11 are swept down, the phenomenon of material accumulation in a granulation area at the position of the extrusion rollers 10 is avoided, the granulation efficiency of the device is improved, the formed granules and the used materials fall on the top end of the screening plate 2, at the moment, the first motor 302 can be controlled by the control panel 13 to work, so that the first rotating shaft 303 and the rotating disc 304 are sequentially driven to rotate, and because the connecting block 306 is connected to the rotating disc 304 through the crank connecting rod 305, the rotation of the rotating disc 304 can be converted into the horizontal reciprocating motion of the connecting block 306 and the screening plate 2 under the connection of the crank connecting rod 305, so that the screening plate, the raw materials to big granule and the fertilizer granule of tiny granule are separated promptly, avoid mixing with the material in the fashioned fertilizer granule, improve the product quality of fertilizer.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an avoid accumulational fertilizer production prilling granulator of material, includes device main part (1), screening board (2), screening mechanism (3), extrusion piece (8) and squeeze roll (10), its characterized in that: the device is characterized in that limiting frames (4) are fixed on two inner side walls of a main body (1), a limiting spring (5) is installed at the central position of the bottom of each limiting frame (4), a supporting plate (6) is installed on one side of the top end of each limiting spring (5), brush rollers (12) are hinged to two sides of the top end of each supporting plate (6), rotating shafts (7) are hinged to the inner wall of one side of the main body (1), second conical gears (14) are fixed to one ends of the rotating shafts (7), extrusion rollers (10) are installed on one sides of the surfaces of the rotating shafts (7), granulation grooves (11) are arranged on one sides of the surfaces of the extrusion rollers (10), air cylinders (9) are installed on one sides of the top ends of the main body (1), extrusion blocks (8) are installed on one sides of the bottoms of the air cylinders (9), and screening plates (2) are installed, be provided with screening mechanism (3) on the device main part (1) outer wall of screening board (2) one side, install control panel (13) on the outer wall of device main part (1) one side, the output of the inside singlechip of control panel (13) and the input electric connection of cylinder (9).
2. The organic fertilizer production and granulation device capable of avoiding material accumulation according to claim 1, characterized in that: install driving motor (15) on the outer wall of device main part (1) one side, and driving motor's (15) output is installed drive pivot (16) through the shaft coupling to first conical gear (17) are installed to one side of drive pivot (16) bottom, and first conical gear (17) and second conical gear (14) intermeshing.
3. The organic fertilizer production and granulation device capable of avoiding material accumulation according to claim 1, characterized in that: pan feeding mouth (18) are installed to one side at device main part (1) top, and screw rod (19) are installed at device main part (1) top on pan feeding mouth (18) one side, and sliding block (20) are installed to one side screw thread department on screw rod (19) surface to one side of sliding block (20) bottom is fixed with striker plate (21).
4. The organic fertilizer production and granulation device capable of avoiding material accumulation according to claim 1, characterized in that: the inside of screening mechanism (3) has set gradually support frame (301), first motor (302), first pivot (303), carousel (304), crank connecting rod (305), connecting block (306) and spacing (307), be fixed with support frame (301) on the outer wall of device main part (1) one side, and one side on support frame (301) top installs first motor (302) to the output of first motor (302) is passed through the shaft coupling and is installed first pivot (303).
5. The organic fertilizer production and granulation device capable of avoiding material accumulation as claimed in claim 4, wherein: a rotary table (304) is installed at one end of the first rotating shaft (303), and a crank connecting rod (305) is hinged to one side of the surface of the rotary table (304).
6. The organic fertilizer production and granulation device capable of avoiding material accumulation according to claim 5, characterized in that: one end of the crank connecting rod (305) is hinged with a connecting block (306), one end of the connecting block (306) is fixedly connected with one end of the screening plate (2), and a limiting frame (307) is fixed inside the device body (1) at one end of the connecting block (306).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202022048323.1U CN213528555U (en) | 2020-09-18 | 2020-09-18 | Avoid accumulational fertilizer production prilling granulator of material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202022048323.1U CN213528555U (en) | 2020-09-18 | 2020-09-18 | Avoid accumulational fertilizer production prilling granulator of material |
Publications (1)
Publication Number | Publication Date |
---|---|
CN213528555U true CN213528555U (en) | 2021-06-25 |
Family
ID=76492852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202022048323.1U Expired - Fee Related CN213528555U (en) | 2020-09-18 | 2020-09-18 | Avoid accumulational fertilizer production prilling granulator of material |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN213528555U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114098119A (en) * | 2021-12-15 | 2022-03-01 | 江苏富海生物科技有限公司 | No fish meal fodder prilling granulator of cottonseed protein peptide preparation |
-
2020
- 2020-09-18 CN CN202022048323.1U patent/CN213528555U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114098119A (en) * | 2021-12-15 | 2022-03-01 | 江苏富海生物科技有限公司 | No fish meal fodder prilling granulator of cottonseed protein peptide preparation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN211964091U (en) | Extrusion granulation device is used in chemical fertilizer production and processing | |
CN212468324U (en) | A pharmaceutical grinding device | |
CN114534623B (en) | Biomass fuel compression granulator | |
CN112317022A (en) | Raw material crushing device is used in mineral wool ceiling production | |
CN213528555U (en) | Avoid accumulational fertilizer production prilling granulator of material | |
CN110982575B (en) | Biomass granular fuel forming machine for new energy | |
CN220878758U (en) | Screening device and swing granulation machine | |
CN216500670U (en) | Imitate high concentration bio-organic fertilizer apparatus for producing for a long time | |
CN112060392A (en) | Polyethylene plastic granules system of processing | |
CN115771213B (en) | Grinder with dustproof function for plastic production | |
CN215996858U (en) | Scraper conveyor is used in production of nitro-chloro slowly-releasing compound thoughtlessly fertile | |
CN213792634U (en) | Sand and stone separator waste fitting discharging | |
CN117816288A (en) | Construction waste crushing equipment for building engineering | |
CN213078396U (en) | Novel material prilling granulator that environment-friendly is used for catalyst | |
CN213408602U (en) | Drug manufacturing is with swaing granulation machine | |
CN114177987A (en) | Smashing device for plastic products | |
CN210546323U (en) | Medicinal powder filter equipment of medicine raw materials | |
CN220276915U (en) | Swing type granulation machine | |
CN112299928A (en) | Biological organic green fertilizer and preparation system and preparation method thereof | |
CN117839549B (en) | Granulating device for hydroxytryptophan particles and using method of granulating device | |
CN222469162U (en) | Crushing equipment for preparing building gypsum powder | |
CN218429352U (en) | Double-cavity reciprocating swing type particle granulator | |
CN222093626U (en) | Powder material deironing equipment is used in biomass fuel production | |
CN220460611U (en) | Rolling granulator | |
CN115463611B (en) | Snow-melting agent processing equipment and processing method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210625 |