CN216574038U - A multistage screening edulcoration device that shakes for processing of camellia oilseed - Google Patents

A multistage screening edulcoration device that shakes for processing of camellia oilseed Download PDF

Info

Publication number
CN216574038U
CN216574038U CN202122930054.6U CN202122930054U CN216574038U CN 216574038 U CN216574038 U CN 216574038U CN 202122930054 U CN202122930054 U CN 202122930054U CN 216574038 U CN216574038 U CN 216574038U
Authority
CN
China
Prior art keywords
barrel
impurity removing
screening
gear
driving motor
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
CN202122930054.6U
Other languages
Chinese (zh)
Inventor
李云
徐兵
朱伯荣
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.)
Jiangxi Qingyise Camellia Oil Co ltd
Original Assignee
Jiangxi Qingyise Camellia Oil 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 Jiangxi Qingyise Camellia Oil Co ltd filed Critical Jiangxi Qingyise Camellia Oil Co ltd
Priority to CN202122930054.6U priority Critical patent/CN216574038U/en
Application granted granted Critical
Publication of CN216574038U publication Critical patent/CN216574038U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

The utility model discloses a multistage vibrating screen impurity removal device for processing camellia oil seeds, which comprises a fixed rod, an impurity removal barrel, a feed hopper, a feed inlet, a feed assembly, a transmission assembly and a screening assembly, wherein one end of the impurity removal barrel is arranged on the fixed rod, one end of the feed hopper is arranged at the other end of the impurity removal barrel, the feed inlet is arranged at the other end of the feed hopper, the feed assembly is arranged in the feed hopper, one end of the transmission assembly is arranged on the outer upper wall of the impurity removal barrel, the other end of the transmission assembly penetrates through the impurity removal barrel and is arranged in the impurity removal barrel, the screening assembly is arranged in the impurity removal barrel, and the screening assembly is connected with the transmission assembly.

Description

A multistage screening edulcoration device that shakes for processing of camellia oilseed
Technical Field
The utility model belongs to the technical field of camellia oilseed processing, and particularly relates to a multistage vibrating screen impurity removal device for camellia oilseed processing.
Background
The camellia seed oil is non-drying oil extracted from seeds of plants in the genus of camellia in the family of theaceae, also called tea seed oil, tea tree oil or camellia seed oil, and the natural proportion and the components of fatty acid of the camellia seed oil are substantially consistent with those of olive oil, and the camellia seed oil is called as 'oriental olive oil' in the name of beauty. The camellia seed oil contains active substances, namely tea polyphenol and camellin, which are not contained in olive oil, so that the camellia oil is called longevity oil and oriental spirit oil, and the camellia oil squeezed from camellia seeds is high-quality edible oil, contains more than 90% of unsaturated fatty acid, does not contain erucic acid, is more storage-resistant than other edible oil, and is not easy to rancidity.
The oil tea seed oil contains abundant VE and tea polyphenols, and has effects of scavenging free radicals, resisting aging, protecting cell membrane structure, inhibiting histamine release from mast cell, reducing cytokine production, and inhibiting inflammation or relieving inflammation. In addition, researches show that the camellia seed oil has remarkable effects on delaying atherosclerosis, increasing gastrointestinal absorption function, promoting endocrine gland hormone secretion and the like.
In the prior art, the raw materials are not thoroughly screened, and the blockage caused by adding too many raw materials at one time during feeding is inevitable.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a multistage vibrating screen impurity removal device for processing camellia oilseeds.
In order to realize the functions, the technical scheme adopted by the utility model is as follows: a multi-stage vibrating screen impurity removal device for processing camellia oilseeds comprises a fixed rod, an impurity removal barrel, a feed hopper, a feeding port, a feeding assembly, a transmission assembly and a screening assembly, wherein one end of the impurity removal barrel is arranged on the fixed rod, one end of the feed hopper is arranged at the other end of the impurity removal barrel, the feeding port is arranged at the other end of the feed hopper, the feeding assembly is arranged in the feed hopper, one end of the transmission assembly is arranged on the outer upper wall of the impurity removal barrel, the other end of the transmission assembly penetrates through the impurity removal barrel and is arranged in the impurity removal barrel, the screening assembly is arranged in the impurity removal barrel, and the screening assembly is connected with the transmission assembly; the screening assembly comprises a supporting rod, a shaft sleeve, a first screening barrel, a second screening barrel, a first external gear and a second external gear, one end of the supporting rod is arranged on the inner bottom wall of the impurity removing barrel, the shaft sleeve is arranged on the other end of the supporting rod, one end of the second screening barrel is rotatably arranged on the supporting rod, the second external gear is arranged on the other end of the second screening barrel, the other end of the second screening barrel is connected with the transmission assembly through the second external gear, one end of the first screening barrel is rotatably arranged on the shaft sleeve, the other end of the first screening barrel penetrates through the second screening barrel and is rotatably arranged on the inner upper wall of the impurity removing barrel, the first external gear is arranged on the other end of the first screening barrel, the other end of the first screening barrel is connected with the transmission assembly through the first external gear, and a sealing ring is arranged between the second screening barrel and the supporting rod; during the use, throw into the feeder hopper with the raw materials from the pan feeding mouth in, start feeding subassembly and drive assembly, feeding subassembly operation is in with the raw materials in the feeder hopper in turn send into first screening bucket, avoid blockking up in the feed inlet, drive assembly passes through external gear one and the rotation of first screening bucket of external gear second drive and second screening bucket, first screening bucket rotates the preliminary screening of raw materials in it, impurity can be stayed in first screening bucket, raw materials after the screening get into to screen in the second screening bucket once more, the second screening bucket is left impurity, remaining raw materials gets into and discharges in the edulcoration bucket.
Preferably, the first sieve barrel has a larger pore size than the second sieve barrel.
The transmission assembly comprises a driving motor II, a rotating rod I, a rotating rod II, a driving gear I, a driving gear II and a driven gear, wherein the driving motor II is arranged on the outer upper wall of the impurity removing barrel, one end of the rotating rod I is rotatably arranged on the inner upper wall of the impurity removing barrel, one end of the rotating rod II is rotatably arranged on the inner upper wall of the impurity removing barrel, the output shaft end of the driving motor II is connected with one end of the rotating rod I, the driving gear I and the driving gear II are arranged on the other end of the rotating rod I, the driven gear is arranged on the other end of the rotating rod II, the driving gear I is meshed with the driven gear, the driven gear is meshed with the external gear I, and the driving gear II is meshed with the external gear II; when the screening device is used, the driving motor II is started, the driving motor II rotates to drive the driving gear I and the driving gear II to rotate through the rotating rod, the driving gear I drives the external gear I to rotate through the driven gear, and the driving gear II drives the external gear II to rotate, so that the first screening barrel and the second screening barrel rotate in different directions to accelerate screening.
Furthermore, the feeding assembly comprises a first driving motor, a rotating shaft, a rotating disc and a material leaking disc, the first driving motor is arranged on the outer upper wall of the feeding hopper, one end of the rotating shaft is rotatably arranged on the inner upper wall of the feeding hopper, an output shaft end of the first driving motor is connected with one end of the rotating shaft, the other end of the rotating shaft is arranged in the feeding hopper, the rotating disc is arranged on the other end of the rotating shaft, and the material leaking disc is arranged on the inner bottom wall of the feeding hopper; during the use, start driving motor one, driving motor rotates and drives the pivot and rotate, and the pivot rotates and drives the carousel and rotate for the raw materials whereabouts in turn in the feeder hopper avoids first screening bucket and second screening bucket to block up because the feeding is too much.
Furthermore, a motor placing box is arranged outside the first driving motor and the second driving motor.
Preferably, a discharge valve is arranged on the outer bottom wall of the impurity removing barrel.
The utility model adopts the structure to obtain the following beneficial effects: the multistage vibrating screen impurity removing device for processing camellia oil seeds is simple in operation, compact in structure and reasonable in design, when the multistage vibrating screen impurity removing device is used, raw materials are thrown into a feed hopper from a feed inlet, a first driving motor is started, the first driving motor rotates to drive a rotating shaft to rotate, the rotating shaft rotates to drive a rotating disc to rotate, so that the raw materials in the feed hopper fall in batches, the situation that the first screening barrel and a second screening barrel are blocked due to excessive feeding is avoided, a second driving motor is started, the second driving motor rotates to drive a first driving gear and a second driving gear to rotate through a rotating rod, the first driving gear drives a first external gear to rotate through a driven gear, the second driving gear drives a second external gear to rotate, so that the first screening barrel and the second screening barrel rotate in different directions to accelerate screening, the raw materials in the first screening barrel are primarily screened, impurities can be left in the first screening barrel, the screened raw materials enter the second screening barrel to be screened again, the second screening bucket leaves impurity, and remaining raw materials get into the edulcoration bucket in and discharge through the bleeder valve.
Drawings
FIG. 1 is a front sectional view of a multistage vibrating screen impurity removal device for processing camellia oilseeds, provided by the utility model;
FIG. 2 is a top view of a material leaking tray of the multistage vibrating screen impurity removing device for processing camellia oil seeds, provided by the utility model;
FIG. 3 is a schematic view of a turntable of the multistage vibrating screen impurity removal device for processing camellia oilseeds provided by the utility model.
The automatic feeding device comprises a fixing rod 1, a fixing rod 2, an impurity removing barrel 3, a feeding hopper 4, a feeding port 5, a feeding assembly 6, a transmission assembly 7, a screening assembly 8, a sealing ring 9, a motor placing box 10, a discharge valve 501, a first driving motor 502, a rotating shaft 503, a rotating disc 504, a leakage disc 601, a second driving motor 602, a first rotating rod 603, a second rotating rod 604, a first driving gear 605, a second driving gear 606, a driven gear 701, a supporting rod 702, a shaft sleeve 703, a first screening barrel 704, a second screening barrel 705, a first external gear 706 and a second external gear.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the multistage vibrating screen impurity removal device for processing camellia oil seeds provided by the utility model comprises a fixed rod 1, an impurity removal barrel 2, a feed hopper 3, a feed inlet 4, a feed assembly 5, a transmission assembly 6 and a screening assembly 7, wherein one end of the impurity removal barrel 2 is arranged on the fixed rod 1, one end of the feed hopper 3 is arranged at the other end of the impurity removal barrel 2, the feed inlet 4 is arranged at the other end of the feed hopper 3, the feed assembly 5 is arranged in the feed hopper 3, one end of the transmission assembly 6 is arranged on the outer upper wall of the impurity removal barrel 2, the other end of the transmission assembly 6 penetrates through the impurity removal barrel 2 and is arranged in the impurity removal barrel 2, the screening assembly 7 is arranged in the impurity removal barrel 2, and the screening assembly 7 is connected with the transmission assembly 6; the screening assembly 7 comprises a support rod 701, a shaft sleeve 702 and a first screening barrel 703, a second screening barrel 704, a first external gear 705 and a second external gear 706, wherein one end of a support rod 701 is arranged on the inner bottom wall of the impurity removing barrel 2, a shaft sleeve 702 is arranged at the other end of the support rod 701, one end of the second screening barrel 704 is rotatably arranged on the support rod 701, the second external gear 706 is arranged at the other end of the second screening barrel 704, the other end of the second screening barrel 704 is connected with the transmission assembly 6 through the second external gear 706, one end of a first screening barrel 703 is rotatably arranged on the shaft sleeve 702, the other end of the first screening barrel 703 penetrates through the second screening barrel 704 to be rotatably arranged on the inner upper wall of the impurity removing barrel 2, the first external gear 705 is arranged at the other end of the first screening barrel 703, the other end of the first screening barrel 703 is connected with the transmission assembly 6 through the first external gear 705, a sealing ring 8 is arranged between the second screening barrel 704 and the support rod 701, and the aperture of the first screening barrel 703 is larger than that of the second screening barrel 704; during the use, throw into the feeder hopper 3 with the raw materials from pan feeding mouth 4 in, start feeding subassembly 5 and drive assembly 6, feeding subassembly 5 operates and sends into first screening barrel 703 with the raw materials in the feeder hopper 3 in batches, avoid blockking up in the feeder hopper, drive assembly 6 drives first screening barrel 703 and second screening barrel 704 rotation through outer gear 705 and outer gear 706, first screening barrel 703 rotates the preliminary screening of raw materials in it, impurity can be stayed in first screening barrel 703, the raw materials after the screening gets into and sieves in the second screening barrel 704 once more, second screening barrel 704 leaves impurity, remaining raw materials gets into and discharges in the edulcoration bucket 2.
As shown in fig. 1, the transmission assembly 6 includes a second driving motor 601, a first rotating rod 602, a second rotating rod 603, a first driving gear 604, a second driving gear 605 and a driven gear 606, the second driving motor 601 is disposed on the outer upper wall of the trash can 2, one end of the first rotating rod 602 is rotatably disposed on the inner upper wall of the trash can 2, one end of the second rotating rod 603 is rotatably disposed on the inner upper wall of the trash can 2, an output shaft end of the second driving motor 601 is connected with one end of the first rotating rod 602, the first driving gear 604 and the second driving gear 605 are disposed on the other end of the first rotating rod 602, the driven gear 606 is disposed on the other end of the second rotating rod 603, the first driving gear 604 is engaged with the driven gear 606, the driven gear 606 is engaged with the first external gear 705, and the second driving gear 605 is engaged with the second external gear 706; when the screening machine is used, the second driving motor 601 is started, the second driving motor 601 rotates to drive the first driving gear 604 and the second driving gear 605 to rotate through the first rotating rod 602, the first driving gear 604 drives the first external gear 705 to rotate through the driven gear 606, and the second driving gear 605 drives the second external gear 706 to rotate, so that the first screening barrel 703 and the second screening barrel 704 rotate in different directions to accelerate screening.
As shown in fig. 1, 2 and 3, the feeding assembly 5 includes a first driving motor 501, a rotating shaft 502, a rotating disc 503 and a material leakage disc 504, the first driving motor 501 is disposed on the outer upper wall of the feeding hopper 3, one end of the rotating shaft 502 is rotatably disposed on the inner upper wall of the feeding hopper 3, the output shaft end of the first driving motor 501 is connected with one end of the rotating shaft 502, the other end of the rotating shaft 502 is disposed in the feeding hopper 3, the rotating disc 503 is disposed on the other end of the rotating shaft 502, and the material leakage disc 504 is disposed on the inner bottom wall of the feeding hopper 3; during the use, start driving motor 501, driving motor 501 rotates and drives pivot 502 to rotate, and pivot 502 rotates and drives carousel 503 and rotate for the raw materials in the feeder hopper 3 falls in batches, avoids first screening bucket 703 and second screening bucket 704 to block up because the feeding is too much.
As shown in FIG. 1, a motor placing box 9 is arranged outside the first driving motor 501 and the second driving motor 601, and a discharge valve 10 is arranged on the outer bottom wall of the impurity removing barrel 2.
When the material screening device is used, raw materials are thrown into a feed hopper 3 from a material inlet 4, a driving motor I501 is started, the driving motor I501 rotates to drive a rotating shaft 502 to rotate, the rotating shaft 502 rotates to drive a rotating disc 503 to rotate, so that the raw materials in the feed hopper 3 fall in batches, the blockage caused by excessive feeding of a first screening barrel 703 and a second screening barrel 704 is avoided, a driving motor II 601 is started, the driving motor II 601 rotates to drive a driving gear I604 and a driving gear II 605 to rotate through a rotating rod I602, the driving gear I604 drives an external gear I705 to rotate through a driven gear 606, the driving gear II 605 drives an external gear II 706 to rotate, so that the first screening barrel 703 and the second screening barrel 704 rotate in different directions to accelerate screening, the first screening barrel 703 rotates to primarily screen the raw materials in the first screening barrel 703, impurities can be left in the first screening barrel 703, and the screened raw materials enter the second screening barrel 704 to be screened again, the second screening barrel 704 leaves impurities, and the remaining raw materials enter the impurity removing barrel 2 and are discharged through the discharge valve 10.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should be able to conceive of the present invention without creative design of the similar structural modes and embodiments without departing from the spirit of the present invention, and all such modifications should fall within the protection scope of the present invention.

Claims (6)

1. The utility model provides a multistage screening edulcoration device that shakes for processing of camellia oilseed which characterized in that: the automatic impurity removing device comprises a fixed rod (1), an impurity removing barrel (2), a feed hopper (3), a feed inlet (4), a feed assembly (5), a transmission assembly (6) and a screening assembly (7), wherein one end of the impurity removing barrel (2) is arranged on the fixed rod (1), one end of the feed hopper (3) is arranged on the other end of the impurity removing barrel (2), the feed inlet (4) is arranged on the other end of the feed hopper (3), the feed assembly (5) is arranged in the feed hopper (3), one end of the transmission assembly (6) is arranged on the outer upper wall of the impurity removing barrel (2), the other end of the transmission assembly (6) penetrates through the impurity removing barrel (2) and is arranged in the impurity removing barrel (2), the screening assembly (7) is arranged in the impurity removing barrel (2), and the screening assembly (7) is connected with the transmission assembly (6); the screening component (7) comprises a supporting rod (701), a shaft sleeve (702), a first screening barrel (703), a second screening barrel (704), a first external gear (705) and a second external gear (706), one end of the supporting rod (701) is arranged on the inner bottom wall of the impurity removing barrel (2), the shaft sleeve (702) is arranged at the other end of the supporting rod (701), one end of the second screening barrel (704) is rotatably arranged on the supporting rod (701), the second external gear (706) is arranged at the other end of the second screening barrel (704), the other end of the second screening barrel (704) is connected with the transmission component (6) through the second external gear (706), one end of the first screening barrel (703) is rotatably arranged on the shaft sleeve (702), the other end of the first screening barrel (703) penetrates through the second screening barrel (704) to be rotatably arranged on the inner upper wall of the impurity removing barrel (2), the first external gear (705) is arranged at the other end of the first screening barrel (703), the other end of the first screening barrel (703) is connected with the transmission assembly (6) through an external gear I (705), and a sealing ring (8) is arranged between the second screening barrel (704) and the supporting rod (701).
2. The multi-stage vibrating screen impurity removing device for processing camellia oilseeds as claimed in claim 1, wherein the multi-stage vibrating screen impurity removing device comprises: the aperture of the first screener barrel (703) is larger than the aperture of the second screener barrel (704).
3. The multi-stage vibrating screen impurity removing device for processing camellia oilseeds as claimed in claim 2, wherein the multi-stage vibrating screen impurity removing device comprises: the transmission assembly (6) comprises a second driving motor (601), a first rotating rod (602), a second rotating rod (603), a first driving gear (604), a second driving gear (605) and a driven gear (606), the second driving motor (601) is arranged on the outer upper wall of the impurity removing barrel (2), one end of the first rotating rod (602) is rotatably arranged on the inner upper wall of the impurity removing barrel (2), one end of the second rotating rod (603) is rotatably arranged on the inner upper wall of the impurity removing barrel (2), the output shaft end of the second driving motor (601) is connected with one end of the first rotating rod (602), the first driving gear (604) and the second driving gear (605) are arranged at the other end of the first rotating rod (602), the driven gear (606) is arranged at the other end of the second rotating rod (603), the first driving gear (604) is meshed with the driven gear (606), the driven gear (606) is meshed with the first external gear (705), and the second driving gear (605) is meshed with the second external gear (706).
4. The multi-stage vibrating screen impurity removing device for processing camellia oilseeds as claimed in claim 3, wherein the multi-stage vibrating screen impurity removing device comprises: feeding subassembly (5) include driving motor (501), pivot (502), carousel (503) and leak charging tray (504), on feeder hopper (3) outer upper wall was located in driving motor (501), pivot (502) one end was rotated and is located on the feeder hopper (3) inner upper wall, driving motor (501) output shaft end links to each other with pivot (502) one end, in feeder hopper (3) was located to the pivot (502) other end, pivot (502) other end is located on pivot (502) the other end, leak charging tray (504) and locate on feeder hopper (3) inner bottom wall.
5. The multi-stage vibrating screen impurity removing device for processing camellia oilseeds as claimed in claim 4, wherein the multi-stage vibrating screen impurity removing device comprises: and a motor placing box (9) is arranged outside the first driving motor (501) and the second driving motor (601).
6. The multi-stage vibrating screen impurity removing device for processing camellia oilseeds as claimed in claim 5, wherein the multi-stage vibrating screen impurity removing device comprises: the outer bottom wall of the impurity removing barrel (2) is provided with a discharge valve (10).
CN202122930054.6U 2021-11-26 2021-11-26 A multistage screening edulcoration device that shakes for processing of camellia oilseed Active CN216574038U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122930054.6U CN216574038U (en) 2021-11-26 2021-11-26 A multistage screening edulcoration device that shakes for processing of camellia oilseed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122930054.6U CN216574038U (en) 2021-11-26 2021-11-26 A multistage screening edulcoration device that shakes for processing of camellia oilseed

Publications (1)

Publication Number Publication Date
CN216574038U true CN216574038U (en) 2022-05-24

Family

ID=81649620

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122930054.6U Active CN216574038U (en) 2021-11-26 2021-11-26 A multistage screening edulcoration device that shakes for processing of camellia oilseed

Country Status (1)

Country Link
CN (1) CN216574038U (en)

Similar Documents

Publication Publication Date Title
CN215656390U (en) Tea-oil camellia seed processing feed arrangement for screening equipment
CN114832904A (en) Biological feed two-stage grinding device and grinding method
CN110369266A (en) A kind of timber factory lumber bits Screening Treatment device
CN111013767A (en) A grinder for chinese-medicinal material processing
CN216574038U (en) A multistage screening edulcoration device that shakes for processing of camellia oilseed
CN209715314U (en) A kind of cutting and grinding integral type picks medicine device
CN110771911B (en) Tea-oil camellia fruit leaf filter
CN206603199U (en) A kind of oil tea shelling machine equipment
CN114870949A (en) Device and method for producing propolis ethanol extract
CN205701372U (en) A kind of feedstuff seperator
CN211120439U (en) Seed drying device for agricultural production
CN212018509U (en) Loading attachment is used in waterproof material production and processing
CN213762730U (en) Sieving mechanism is used in rice processing
CN209251684U (en) A kind of tea oil fruit hulling device
CN208370320U (en) A kind of efficient sunflower threshing storage device
CN219559859U (en) Tea-oil camellia seed reducing mechanism
CN220157528U (en) Bitter almond peeling device
CN219092666U (en) Seed screening equipment for crop breeding
CN219943503U (en) Tea screening equipment
CN208657389U (en) A kind of alfalfa seed collection device
CN219765176U (en) Traditional chinese medicine composition health preserving tea processing mixing arrangement
CN212856044U (en) Feeding device for food processing
CN214781699U (en) Tea-oil camellia seed sieving mechanism is used in tea-oil camellia processing
CN213001065U (en) Novel chain transmission sieve
CN108901370A (en) A kind of quick stripping off device of rapeseed

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant