CN210675860U - Automatic upset screening installation of tealeaves - Google Patents

Automatic upset screening installation of tealeaves Download PDF

Info

Publication number
CN210675860U
CN210675860U CN201921165199.8U CN201921165199U CN210675860U CN 210675860 U CN210675860 U CN 210675860U CN 201921165199 U CN201921165199 U CN 201921165199U CN 210675860 U CN210675860 U CN 210675860U
Authority
CN
China
Prior art keywords
wall
fixedly connected
shell
screening
hole
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
CN201921165199.8U
Other languages
Chinese (zh)
Inventor
黄文龙
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.)
Suzhou Deheji Automation Technology Co Ltd
Original Assignee
Suzhou Deheji Automation Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Deheji Automation Technology Co Ltd filed Critical Suzhou Deheji Automation Technology Co Ltd
Priority to CN201921165199.8U priority Critical patent/CN210675860U/en
Application granted granted Critical
Publication of CN210675860U publication Critical patent/CN210675860U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Tea And Coffee (AREA)

Abstract

The utility model relates to a tealeaves screening technical field, and an automatic upset screening installation of tealeaves is disclosed, which comprises a housin, the coupling mechanism of two symmetric distributions of the inner wall fixedly connected with of casing, the common fixedly connected with screening net section of thick bamboo of the inner wall of two coupling mechanisms, casing one end fixedly connected with actuating mechanism, circular through-hole has been seted up to the other end of casing, and there is the cap inner wall of circular through-hole through threaded connection, and the last fixed surface of casing is connected with screening complementary unit, and the lower fixed surface of casing is connected with the U-shaped board, and the inner wall of U-shaped board articulates has the first supporting leg of two symmetric distributions. The utility model discloses can effectively improve the environmental protection performance of the automatic upset screening installation of tealeaves, also improve the quality of tealeaves screening, and can improve the convenience that tealeaves took out from the screening net section of thick bamboo, labour saving and time saving has reduced staff's intensity of labour, has improved the efficiency of tealeaves screening process simultaneously.

Description

Automatic upset screening installation of tealeaves
Technical Field
The utility model relates to a tealeaves screening technique field especially relates to an automatic upset screening installation of tealeaves.
Background
Before tea is made into finished products, a plurality of working procedures need to be carried out, picked tea needs to be screened firstly, the completeness and cleanness of the tea are ensured, the tea screening is a working procedure necessary for a tea making process, fine dregs in the tea are usually removed through screening, the quality and the grade of the tea are improved, the traditional screening mode is that a filter screen is shaken manually to carry out screening, the efficiency is low, the labor intensity of workers is high, and the manual screening is not suitable for a large number of tea production tasks in a factory.
The automatic upset screening installation of current tealeaves adopts horizontal open type to arrange mostly, leads to the tealeaves after the later stage screening to be difficult for taking out in a screening net section of thick bamboo, and needs the manual work to take out, and the process is comparatively loaded down with trivial details inconvenient, and is consuming time hard, increases staff's intensity of labour, and in addition, open screening net section of thick bamboo makes impurity fly away to other positions in the workshop easily, has polluted all ring edge borders, leads to the feature of environmental protection of equipment relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art automatic upset screening installation of tealeaves and adopting horizontal open to arrange mostly, lead to the tealeaves after the later stage screening to be difficult for taking out in a screening net section of thick bamboo, and need the manual work to take out, the process is comparatively loaded down with trivial details inconvenient, waste time and energy, increase staff's intensity of labour, and open screening net section of thick bamboo makes impurity fly away to other positions in workshop easily, pollute all ring edge borders, lead to the relatively poor problem of equipment feature of environmental protection, and the automatic upset screening installation of tealeaves that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an automatic tea overturning and screening device comprises a shell, wherein the inner wall of the shell is fixedly connected with two symmetrically-distributed connecting mechanisms, the inner walls of the two connecting mechanisms are fixedly connected with a screening net drum together, one end of the shell is fixedly connected with a driving mechanism, the other end of the shell is provided with a circular through hole, the inner wall of the circular through hole is connected with a shell cover through threads, the upper surface of the shell is fixedly connected with a screening auxiliary mechanism, the lower surface of the shell is fixedly connected with a U-shaped plate, the inner wall of the U-shaped plate is hinged with two symmetrically-distributed first supporting legs, the lower surface of the shell is fixedly connected with two symmetrically-distributed second supporting legs, the bottom ends of the plurality of the second supporting legs are fixedly connected with a base together, the upper surface of the base is fixedly connected with a lifting mechanism, and the top side wall of the, a through hole is formed in the lower surface of the shell, and a waste material collecting mechanism is fixedly connected to the wall of the through hole;
the connecting mechanism comprises a plurality of universal balls fixedly connected with the inner wall of the shell, the outer walls of the universal balls are jointly connected with a connecting ring in a rolling mode, the inner wall of the connecting ring is fixedly connected with the outer wall of the screening net barrel, and grooves matched with the universal balls are formed in the outer wall of the connecting ring.
Preferably, the driving mechanism comprises a supporting block fixedly connected with the outer wall of the shell, a driving motor is fixedly connected with the upper surface of the supporting block, a through hole is formed in the side wall of the shell, the hole wall of the through hole is rotatably connected with a rotating rod through a rolling bearing, and two ends of the rotating rod are fixedly connected with the outer wall of the screening net cylinder and the output end of the driving motor respectively.
Preferably, screening complementary unit includes heating cabinet and the air-blower with casing upper surface fixed connection, the output of air-blower and the fixed intercommunication of the lateral wall of heating cabinet, a plurality of electric heating pipe of inner wall fixedly connected with of heating cabinet, the fixed intercommunication of the lateral wall of heating cabinet has first pipe, the inner wall fixedly connected with second pipe of casing, the bottom of first pipe pass the upper surface of casing and with the fixed intercommunication of the pipe wall of second pipe, a plurality of ventholes have been seted up to the outer wall of second pipe.
Preferably, the waste collecting mechanism comprises a collecting hopper fixedly connected with the inner wall of the through hole in the shell, a dust bag is movably sleeved on the outer wall of the bottom end of the collecting hopper, and a rubber ring is fixedly adjusted on the outer wall of the dust bag.
Preferably, the lifting mechanism comprises an electric hydraulic rod fixedly connected with the upper surface of the base, a connecting block is hinged to the top end of the electric hydraulic rod, and the side wall of the connecting block is fixedly connected with the outer wall of the shell.
Preferably, the inner wall of the screen cylinder is fixedly connected with a plurality of reinforcing rods.
Compared with the prior art, the utility model provides an automatic upset screening installation of tealeaves possesses following beneficial effect:
1. the automatic tea leaf overturning and screening equipment is provided with a driving motor, a blower, an electric heating pipe and a shell, when partial tea leaves are required to be screened, firstly, the tea leaves are put into a screening net drum, then, a shell cover is covered, then, the screening net drum is driven to rotate in the shell through a driving mechanism, meanwhile, the air flow in the shell is accelerated through a screening auxiliary mechanism, the tea leaves are overturned more violently in the screening net drum, the screening quality and the screening speed of the screening net drum are guaranteed, the problem that fine impurities are not easy to screen due to being wrapped by the tea leaves is avoided, meanwhile, the tea leaves can be primarily dried by hot air, the time required by subsequent drying is reduced, the tea leaf production efficiency is improved, then, the screened impurities enter a receiving hopper along with the air, then, after the collection and the filtration of dust bags, the air is scattered out of the dust bags, and the impurities are collected by the dust bags and, the mechanism can effectively improve the environmental protection performance of the automatic tea overturning and screening equipment and also improve the quality and efficiency of tea screening.
2. This automatic upset screening installation of tealeaves, through being provided with electronic hydraulic stem, the connecting block, first supporting leg and second supporting leg, after the tealeaves screening finishes, open the cap, start lifting mechanism simultaneously and make the ascending lifting of casing, the second supporting leg breaks away from ground simultaneously, and first supporting leg can ensure that the casing can incline through the U-shaped board, then driving motor makes the screening net section of thick bamboo rotate, and then make the tealeaves in the screening net section of thick bamboo all pour from the casing bottom, do not need artifical clearance tealeaves from the screening net section of thick bamboo, time saving and labor saving, later on make the casing get back to the primary position through electronic hydraulic stem, this structure can improve the convenience that the tealeaves takes out from the leaf screening net section of thick bamboo, save time and labor, staff's intensity of labour has been reduced, the efficiency of tealeaves screening process has been improved simultaneously.
The device does not relate to the part all the same with prior art or can adopt prior art to realize, the utility model discloses can effectively improve the environmental protection performance of the automatic upset screening installation of tealeaves, also improve the quality of tealeaves screening, and can improve the convenience that tealeaves took out from the screening net section of thick bamboo, labour saving and time saving has reduced staff's intensity of labour, has improved the efficiency of tealeaves screening process simultaneously.
Drawings
Fig. 1 is a schematic structural view of an automatic tea leaf overturning and screening apparatus provided by the present invention;
fig. 2 is the utility model provides a structural schematic diagram of automatic upset screening installation A part of tealeaves.
In the figure: the device comprises a shell 1, a connecting mechanism 2, universal balls 21, a connecting ring 22, a screening net cylinder 3, a driving mechanism 4, a supporting block 41, a driving motor 42, a rotating rod 43, a shell cover 5, a screening auxiliary mechanism 6, a heating box 61, a blower 62, an electric heating pipe 63, a first pipe 64, a second pipe 65, a U-shaped plate 7, a lifting mechanism 8, an electric hydraulic rod 81, a connecting block 82, a waste collecting mechanism 9, a collecting hopper 91, a dust bag 92, a rubber ring 93, a first supporting leg 10, a second supporting leg 11, a base 12 and a reinforcing rod 13.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, and 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 therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, an automatic tea leaf overturning and screening device comprises a casing 1, two symmetrically distributed connecting mechanisms 2 fixedly connected to the inner wall of the casing 1, a screening net drum 3 fixedly connected to the inner walls of the two connecting mechanisms 2, a driving mechanism 4 fixedly connected to one end of the casing 1, a circular through hole formed at the other end of the casing 1, a casing cover 5 connected to the inner wall of the circular through hole through a thread, a screening auxiliary mechanism 6 fixedly connected to the upper surface of the casing 1, a U-shaped plate 7 fixedly connected to the lower surface of the casing 1, two symmetrically distributed first supporting legs 10 hinged to the inner wall of the U-shaped plate 7, two symmetrically distributed second supporting legs 11 fixedly connected to the lower surface of the casing 1, a base 12 fixedly connected to the bottom ends of the plurality of second supporting legs 11, a lifting mechanism 8 fixedly connected to the upper surface of the base 12, and the top side wall of the lifting mechanism 8, a through hole is formed in the lower surface of the shell 1, and a waste material collecting mechanism 9 is fixedly connected to the wall of the through hole;
the connecting mechanism 2 comprises a plurality of universal balls 21 fixedly connected with the inner wall of the shell 1, the outer walls of the universal balls 21 are connected with a connecting ring 22 in a rolling mode, the inner wall of the connecting ring 22 is fixedly connected with the outer wall of the screening net barrel 3, and the outer wall of the connecting ring 22 is provided with a groove matched with the universal balls 21.
Actuating mechanism 4 includes supporting shoe 41 with casing 1 outer wall fixed connection, and the last fixed surface of supporting shoe 41 is connected with driving motor 42, and the through-hole has been seted up to the lateral wall of casing 1, and the pore wall of through-hole rotates through antifriction bearing and is connected with bull stick 43, the both ends of bull stick 43 respectively with the outer wall of screen cylinder 3 and driving motor 42's output fixed connection.
The screening auxiliary mechanism 6 comprises a heating box 61 and an air blower 62 which are fixedly connected with the upper surface of the shell 1, the output end of the air blower 62 is fixedly communicated with the side wall of the heating box 61, the inner wall of the heating box 61 is fixedly connected with a plurality of electric heating pipes 63, the side wall of the heating box 61 is fixedly communicated with a first conduit 64, the inner wall of the shell 1 is fixedly connected with a second conduit 65, the bottom end of the first conduit 64 penetrates through the upper surface of the shell 1 and is fixedly communicated with the pipe wall of the second conduit 65, the outer wall of the second conduit 65 is provided with a plurality of air outlet holes, air is blown into the shell 1 through the first conduit 64 and the second conduit 65 to accelerate the air flow in the shell 1, so that tea leaves are overturned in the screening net cylinder 3 more, the screening quality and the screening speed of the screening net cylinder 3 are ensured, the problem that fine impurities are wrapped by the tea leaves and are difficult to be screened is avoided, the time required by subsequent drying is reduced, and the tea production efficiency is improved.
Garbage collection mechanism 9 includes with casing 1 on through-hole inner wall fixed connection's collecting hopper 91, and the dust bag 92 has been cup jointed in the bottom outer wall activity of collecting hopper 91, and the outer wall of dust bag 92 is fixed to be adjusted has rubber ring 93, and the impurity of screening gets into collecting hopper 91 along with the air in, and after the collection of dust bag 92 filters, the air scatters from dust bag 92, and impurity is then collected by dust bag 92 and is avoided giving off in the workshop.
Lifting mechanism 8 includes the electronic hydraulic stem 81 with fixed surface is connected on base 12, and the top of electronic hydraulic stem 81 articulates there is connecting block 82, and the lateral wall of connecting block 82 and the outer wall fixed connection of casing 1, this mechanism can improve the convenience that tea was taken out from leaf screening net section of thick bamboo 3, and labour saving and time saving has reduced staff's intensity of labour, has improved the efficiency of tealeaves screening process simultaneously.
The inner wall of the screening net drum 3 is fixedly connected with a plurality of reinforcing rods 13, the reinforcing rods 13 can reinforce the structural strength of the screening net drum 3, and the driving motor 42, the air blower 62, the electric heating pipe 63 and the electric hydraulic rod 81 are all electrically connected with an external power supply through a control switch, so that the support of power supply quantity obtained during operation can be guaranteed.
In the utility model, when partial tea leaves are required to be screened, firstly, the tea leaves are put into the screening net cylinder 3, then the shell cover 5 is covered, then the driving motor 42 is started, the screening net cylinder 3 rotates in the shell 1 through the rotating rod 43 by the driving motor 42, then the air blower 62 and the motor heat pipe 63 are started, the air blower 62 conveys air into the heating box 61, after the air is heated by the electric heating pipe 63 in the heating box 61, hot air is blown into the shell 1 through the first conduit 64 and the second conduit 65, the air flow in the shell 1 is accelerated, the tea leaves are overturned more intensely in the screening net cylinder 3, the quality and the speed of screening of the screening net cylinder 3 are ensured, the problem that fine impurities are not easy to be screened out by the tea leaves are avoided, meanwhile, the hot air can dry the tea leaves, the time required by subsequent drying is reduced, the efficiency of tea leaf production is improved, then the screened impurities enter the material receiving hopper 91 along with the air, and then after the collection and filtration of the dust bag 92, the air is scattered from the dust bag 92, and the impurities are collected by the dust bag 92 and prevented from being scattered to a workshop, the mechanism can effectively improve the environmental protection performance of the automatic tea leaf overturning and screening device, and also improve the quality and the efficiency of tea leaf screening, after the tea leaf screening is finished, the shell cover 5 is opened, the electric hydraulic rod 81 is started, the electric hydraulic rod 81 enables the shell 1 to be lifted upwards through the connecting block 82, meanwhile, the second supporting leg 11 is separated from the ground, the first supporting leg 10 can ensure that the shell 1 can be inclined through the U-shaped plate 7, then the driving motor 42 enables the screening net cylinder 3 to rotate, so that the tea leaves in the screening net cylinder 3 are all poured out from the shell 1, the tea leaves do not need to be manually cleaned from the screening net cylinder 3, time and labor are saved, and then the shell 1 is returned to the original position through, this structure can improve the convenience that the tea took out from leaf screening net section of thick bamboo 3, and labour saving and time saving has reduced staff's intensity of labour, has improved the efficiency of tealeaves screening process simultaneously.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. An automatic tea overturning and screening device comprises a shell (1) and is characterized in that the inner wall of the shell (1) is fixedly connected with two symmetrically-distributed connecting mechanisms (2), the inner walls of the two connecting mechanisms (2) are fixedly connected with a screening net drum (3) together, one end of the shell (1) is fixedly connected with a driving mechanism (4), the other end of the shell (1) is provided with a circular through hole, the inner wall of the circular through hole is connected with a shell cover (5) through threads, the upper surface of the shell (1) is fixedly connected with a screening auxiliary mechanism (6), the lower surface of the shell (1) is fixedly connected with a U-shaped plate (7), the inner wall of the U-shaped plate (7) is hinged with two symmetrically-distributed first supporting legs (10), and the lower surface of the shell (1) is fixedly connected with two symmetrically-distributed second supporting legs (11), the bottom ends of the second supporting legs (11) are fixedly connected with a base (12) together, the upper surface of the base (12) is fixedly connected with a lifting mechanism (8), the side wall of the top end of the lifting mechanism (8) is fixedly connected with the outer wall of the shell (1), the lower surface of the shell (1) is provided with a through hole, and the hole wall of the through hole is fixedly connected with a waste material collecting mechanism (9);
the connecting mechanism (2) comprises a plurality of universal balls (21) fixedly connected with the inner wall of the shell (1), the outer walls of the universal balls (21) are jointly connected with a connecting ring (22) in a rolling mode, the inner wall of the connecting ring (22) is fixedly connected with the outer wall of the screening net barrel (3), and grooves matched with the universal balls (21) are formed in the outer wall of the connecting ring (22).
2. The automatic tea leaf overturning and screening equipment according to claim 1, wherein the driving mechanism (4) comprises a supporting block (41) fixedly connected with the outer wall of the casing (1), a driving motor (42) is fixedly connected to the upper surface of the supporting block (41), a through hole is formed in the side wall of the casing (1), a rotating rod (43) is rotatably connected to the hole wall of the through hole through a rolling bearing, and two ends of the rotating rod (43) are respectively fixedly connected with the outer wall of the screening net cylinder (3) and the output end of the driving motor (42).
3. The automatic tea leaf overturning and screening device according to claim 1, wherein the screening auxiliary mechanism (6) comprises a heating box (61) and an air blower (62) which are fixedly connected with the upper surface of the shell (1), the output end of the air blower (62) is fixedly communicated with the side wall of the heating box (61), the inner wall of the heating box (61) is fixedly connected with a plurality of electric heating pipes (63), the side wall of the heating box (61) is fixedly communicated with a first conduit (64), the inner wall of the shell (1) is fixedly connected with a second conduit (65), the bottom end of the first conduit (64) penetrates through the upper surface of the shell (1) and is fixedly communicated with the pipe wall of the second conduit (65), and the outer wall of the second conduit (65) is provided with a plurality of air outlet holes.
4. The automatic tea leaf overturning and screening equipment according to claim 1, wherein the waste material collecting mechanism (9) comprises a material collecting hopper (91) fixedly connected with the inner wall of the through hole in the shell (1), a dust bag (92) is movably sleeved on the outer wall of the bottom end of the material collecting hopper (91), and a rubber ring (93) is fixedly adjusted on the outer wall of the dust bag (92).
5. The automatic tea leaf overturning and screening equipment according to claim 1, wherein the lifting mechanism (8) comprises an electric hydraulic rod (81) fixedly connected with the upper surface of the base (12), the top end of the electric hydraulic rod (81) is hinged with a connecting block (82), and the side wall of the connecting block (82) is fixedly connected with the outer wall of the shell (1).
6. An automatic tea leaf overturning and screening device according to claim 1, characterized in that a plurality of reinforcing rods (13) are fixedly connected to the inner wall of the screen cylinder (3).
CN201921165199.8U 2019-07-24 2019-07-24 Automatic upset screening installation of tealeaves Expired - Fee Related CN210675860U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921165199.8U CN210675860U (en) 2019-07-24 2019-07-24 Automatic upset screening installation of tealeaves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921165199.8U CN210675860U (en) 2019-07-24 2019-07-24 Automatic upset screening installation of tealeaves

Publications (1)

Publication Number Publication Date
CN210675860U true CN210675860U (en) 2020-06-05

Family

ID=70900428

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921165199.8U Expired - Fee Related CN210675860U (en) 2019-07-24 2019-07-24 Automatic upset screening installation of tealeaves

Country Status (1)

Country Link
CN (1) CN210675860U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112244075A (en) * 2020-09-29 2021-01-22 山东理工大学 Euphausia superba sorting unit
CN112547496A (en) * 2020-12-03 2021-03-26 丰城市御健茶业有限公司 Dedicated tealeaves sieving mechanism in tealeaves planting
CN112902617A (en) * 2021-02-02 2021-06-04 黄文富 Efficient drying equipment for tea processing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112244075A (en) * 2020-09-29 2021-01-22 山东理工大学 Euphausia superba sorting unit
CN112547496A (en) * 2020-12-03 2021-03-26 丰城市御健茶业有限公司 Dedicated tealeaves sieving mechanism in tealeaves planting
CN112902617A (en) * 2021-02-02 2021-06-04 黄文富 Efficient drying equipment for tea processing

Similar Documents

Publication Publication Date Title
CN210675860U (en) Automatic upset screening installation of tealeaves
CN206624849U (en) A kind of vinasse filter
CN110605272A (en) Raw material cutting device for oral liquid extraction and use method thereof
CN107952665B (en) Semi-automatization soybean sieving mechanism
CN112403626B (en) Dehydration crushing device for kitchen waste treatment and use method thereof
CN206525508U (en) A kind of soybean automatic screening equipment
CN213657344U (en) A cure equipment for processing of black oolong tea
CN212576963U (en) Straw is raw materials belt cleaning device for slurrying
CN214620482U (en) Novel tealeaves sunning device
CN206597686U (en) A kind of architectural engineering sand sieving machine
CN209345966U (en) A kind of automatic tea frying machine with slag removing function
CN207941259U (en) A kind of soybean oil, which is produced, uses effective filter
CN217179010U (en) Quick cooling device of raw materials for sesame oil production
CN212081972U (en) Oil tea fruit drying device
CN112588335A (en) Automatic grain drying machine
CN212819318U (en) Machine for making dried sawdust biological particles
CN211608107U (en) Tea drying device convenient for screening and used for artificial intelligence
CN210411471U (en) Premix feed screening device
CN208245431U (en) A kind of recyclable Environmental-protection garbage crushing and collecting device for making feed
CN209677300U (en) A kind of tanning device of macadamia production
CN219390304U (en) Airing device for tea seed processing
CN222525022U (en) Garment production waste collection device
CN211330189U (en) Screening and grading equipment for tea processing
CN214148663U (en) A new energy-based garbage drying equipment
CN213001199U (en) Tea color sorter modularization cleaning production system

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: 20200605