CN210704577U - Synchronous pulley assembly device - Google Patents
Synchronous pulley assembly device Download PDFInfo
- Publication number
- CN210704577U CN210704577U CN201921773595.9U CN201921773595U CN210704577U CN 210704577 U CN210704577 U CN 210704577U CN 201921773595 U CN201921773595 U CN 201921773595U CN 210704577 U CN210704577 U CN 210704577U
- Authority
- CN
- China
- Prior art keywords
- ring
- push block
- base
- installation axle
- ejector pad
- 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
Images
Landscapes
- Gears, Cams (AREA)
Abstract
The utility model relates to a synchronous pulley assembler relates to mechanical assembly processing's technical field, and it includes the base, set up baffle on the base, slide and set up the ejector pad on the base, set up the drive assembly that the drive ejector pad on the base removed and set up the installation mechanism on the ejector pad, installation mechanism wears to locate the installation axle on the ejector pad and sets up the elastic component between installation axle and ejector pad including sliding, the elastic component makes the installation axle lean on the end surface protrusion ejector pad terminal surface of baffle side, and the ring gear is placed between ejector pad and baffle, spacing ring and installation axle grafting cooperation, and the slip direction of ejector pad is unanimous with the axial of ring gear, and the spacing ring inserts in the annular when the ejector pad promotes installation axle butt when the ring gear terminal surface and make the elastic component compression. The utility model discloses thereby have the intensity of labour who reduces operating personnel equipment synchronous pulley and improve the effect of the efficiency of equipment with the time that reduces the equipment and consume.
Description
Technical Field
The utility model belongs to the technical field of the technique of mechanical assembly processing and specifically relates to a hold-in range wheel assembly ware is related to.
Background
Currently, synchronous pulleys are generally made of steel, aluminum alloy, cast iron, brass, and the like. The inner hole has the forms of round hole, D-shaped hole, tapered hole and the like. And the synchronous belt pulley has the advantages of accurate transmission, difficult slipping, strong stability, high transmission efficiency and the like, so the synchronous belt pulley is widely applied to industrial production.
Referring to fig. 1, the synchronous pulley includes a gear ring 1 having gear teeth on the peripheral side wall and a limit ring 12 disposed on the end surfaces of both sides of the gear ring 1, the gear teeth on the surface of the gear ring 1 are used for being engaged with the synchronous pulley to drive the synchronous pulley, and the diameter of the limit ring 12 is greater than that of the gear ring 1, so as to prevent the synchronous pulley from being disengaged from the surface of the gear ring 1. And the circular end face of the gear ring 1 is surrounded with a circular ring groove 11, the limiting ring 12 is in splicing fit with the ring groove 11, and the inner ring wall of the limiting ring is abutted against the inner wall of the ring groove 11. When the limit ring 12 is inserted into the ring groove 11, the side surface of the limit ring is flush with the end surface of the gear ring 1, and then an operator needs to reinforce the gear ring 1 and the limit ring 12 after insertion, so that the synchronous belt wheel is assembled. Whereas the insertion of the stop collar 12 into the toothed ring 1 is generally carried out manually.
The above prior art solutions have the following drawbacks: because burrs may exist on the gear ring 1 and the limit ring 12, the labor intensity of the manual splicing mode of the limit ring 12 and the gear ring 1 is high, the time consumed by assembling is increased, and the assembling efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a synchronous pulley assembler can reduce operating personnel equipment synchronous pulley's intensity of labour, reduces the time that the equipment consumes to improve the efficiency of equipment.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a synchronous pulley assembler, includes the base, set up baffle on the base, slide and set up the drive assembly that the ejector pad on the base was removed, set up the drive assembly that the drive ejector pad on the base removed and set up the installation mechanism on the ejector pad, installation mechanism wears to locate the installation axle on the ejector pad and sets up the elastic component between installation axle and ejector pad including sliding, the elastic component makes the installation axle lean on the terminal surface protrusion ejector pad terminal surface of baffle side, and the ring gear is placed between ejector pad and baffle, spacing ring and installation axle grafting cooperation, and the slip direction of ejector pad is unanimous with the axial of ring gear, and the spacing ring inserts in the annular when the ejector pad promotes installation axle butt in the ring gear terminal surface and makes the elastic.
By adopting the technical scheme, the gear ring is placed between the push block and the baffle, and the limiting ring is in splicing fit with the mounting shaft, so that the limiting ring is in splicing fit with the mounting shaft, and an inner ring opening of the limiting ring is aligned with the end face of the gear ring; when the driving assembly pushes the push block, the push block drives the installation shaft to move towards the gear ring side, the elastic part is compressed under the action of reaction force when the installation shaft is abutted to the gear ring, and the installation shaft retracts into the push block at the moment so that the limiting ring is inserted into the ring groove, the transition of the limiting ring from the installation shaft to the gear ring is realized, the labor intensity of operators is reduced, the time consumed by assembly is reduced, and the assembly efficiency is improved.
The utility model discloses further set up to: at least two limiting rings are inserted on the mounting shaft.
Through adopting above-mentioned technical scheme, insert two at least spacing rings simultaneously on the installation axle to this time that reduces the spacing ring and load alone improves synchronous pulley equipment's efficiency.
The utility model discloses further set up to: a strip-shaped groove is formed in the base in the side close to the baffle, the opening of the strip-shaped groove faces upwards, the inner side wall of the strip-shaped groove is flush with the side face of the baffle, an arc-shaped groove matched with the limiting ring in an inserting mode is formed in the bottom wall of the strip-shaped groove, and the end face of the gear ring is right opposite to the inner ring opening of the limiting ring when the limiting ring is inserted into the arc-shaped groove.
Through adopting above-mentioned technical scheme, the arc wall is used for placing another spacing ring except that the installation axle is installed in the insertion, with this offset that reduces the spacing ring, the both sides lateral wall and the spacing ring side butt of bar groove, with this angle skew that reduces the spacing ring, with this inner circle opening that makes the spacing ring aligns with the terminal surface of ring gear, when the ejector pad removes the epaxial spacing ring of installation, spacing ring in the arc wall is pegged graft with the annular of ring gear both sides respectively and is cooperated, with this equipment of accomplishing synchronous pulley, and the high packaging efficiency is achieved.
The utility model discloses further set up to: the base is provided with a containing groove for placing the gear ring, one side end face of the gear ring is opposite to the mounting shaft when the gear ring is inserted into the containing groove, and the other side end face of the gear ring is opposite to the inner ring opening of the limiting ring in the arc-shaped groove.
By adopting the technical scheme, the accommodating groove is formed for reducing the position deviation of the gear ring, so that the end face of the gear ring is opposite to the limiting ring, the assembling precision of the gear ring and the limiting ring is improved, and the defective rate is reduced.
The utility model discloses further set up to: the installation axle has a plurality ofly and distributes along the vertical direction of ejector pad moving direction, arc wall, storage tank all with the installation axle one-to-one.
Through adopting above-mentioned technical scheme, the setting up of a plurality of installation axles makes the ejector pad drive a plurality of spacing rings and a plurality of ring gear in step when removing and assembles to this reduces the required time of independent equipment, has improved the efficiency of equipment.
The utility model discloses further set up to: and a chamfer is arranged at one end of the mounting shaft close to the gear ring.
Through adopting above-mentioned technical scheme, set up the chamfer on the installation axle is leaned on one of ring gear to this leads the spacing ring, makes things convenient for the spacing ring to cup joint in installation epaxial, thereby improves the loading speed of spacing ring, improves the packaging efficiency.
The utility model discloses further set up to: the driving assembly comprises a screw rod in threaded connection with the base, one end of the screw rod is rotationally connected with the push block, and the axial direction of the screw rod is consistent with the axial direction of the gear ring.
Through adopting above-mentioned technical scheme, the screw rod drives the ejector pad along ring gear axial slip when rotating to this makes the ejector pad extrusion spacing ring, and the spacing ring inserts in the annular under the thrust effect of ejector pad, with this equipment of accomplishing spacing ring and ring gear, thereby improves the packaging efficiency.
The utility model discloses further set up to: the base is provided with a guide block between the threaded connection part of the screw rod and the baffle, the guide block is provided with a guide hole, and the push block is slidably arranged in the guide hole.
Through adopting above-mentioned technical scheme, lead to the ejector pad through the guiding hole on the guide block, reduce the crooked of ejector pad to this side that makes the spacing ring keeps flushing with the terminal surface of ring gear, improves the equipment precision and the quality of spacing ring and ring gear.
To sum up, the utility model discloses a beneficial technological effect does:
the driving assembly pushes the push block, the push block drives the mounting shaft to move towards the gear ring side, the elastic part is compressed under the action of a reaction force when the mounting shaft is abutted to the gear ring, and the mounting shaft retracts into the push block to insert the limiting ring into the ring groove, so that the transition of the limiting ring from the mounting shaft to the gear ring is realized, the labor intensity of operators is reduced, the time consumed by assembly is reduced, and the assembly efficiency is improved;
the arc-shaped groove is used for placing another limiting ring except the inserted mounting shaft so as to reduce the position offset of the limiting ring, and the side walls of the two sides of the strip-shaped groove are abutted against the side surfaces of the limiting ring so as to reduce the angle offset of the limiting ring, so that the opening of the inner ring of the limiting ring is aligned with the end surface of the gear ring, and the assembly efficiency is improved;
when the screw rod rotates, the push block is driven to slide along the axial direction of the gear ring, so that the push block extrudes the limit ring, the limit ring is inserted into the annular groove under the thrust action of the push block, and the limit ring and the gear ring are assembled, so that the assembly efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a synchronous pulley in the prior art;
FIG. 2 is a schematic view of the overall structure of the present embodiment;
fig. 3 is a schematic view of a partial explosion structure of the present embodiment.
Reference numerals: 1. a ring gear; 11. a ring groove; 12. a limiting ring; 2. a base; 21. a baffle plate; 22. a push block; 23. a drive assembly; 231. a screw; 24. a guide block; 241. a guide hole; 25. a slot; 26. a limiting wheel; 3. an installation mechanism; 31. installing a shaft; 32. an elastic member; 33. a strip-shaped groove; 34. an arc-shaped slot; 35. a containing groove; 36. a strip-shaped hole; 37. and (4) bolts.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 2, for the utility model discloses a synchronous pulley assembler, including base 2, set up baffle 21 on base 2, slide and set up ejector pad 22 on base 2, set up drive assembly 23 that drive ejector pad 22 on base 2 removed and set up installation mechanism 3 on ejector pad 22. The base 2 is rectangular, and the baffle 21 is located at one end of the base 2, perpendicular to the top surface of the base 2 and integrally formed with the base 2.
The side of the base 2 close to the baffle 21 is provided with a strip-shaped groove 33, the strip-shaped groove 33 is horizontally distributed, the length direction of the strip-shaped groove is perpendicular to the moving direction of the push block 22, the opening of the strip-shaped groove 33 faces upwards, and the inner side wall of the strip-shaped groove is flush with the side face of the baffle 21. As shown in fig. 3, an arc groove 34 is formed in the bottom wall of the bar groove 33 and is in insertion fit with the position-limiting ring 12, so that the position of the position-limiting ring 12 is fixed by the arc groove 34, and the side surface of the position-limiting ring 12 is abutted against the groove wall of the bar groove 33, thereby reducing the angular deviation of the position-limiting ring 12.
Offer the storage tank 35 that supplies ring gear 1 to place on the base 2, storage tank 35 is the concave arc shape, and storage tank 35 communicates with strip groove 33, and when ring gear 1 inserted in storage tank 35 and spacing ring 12 inserted in arc groove 34 the terminal surface of ring gear 1 just right with the inner circle opening of spacing ring 12. When the pushing block 22 moves, the gear ring 1 is pushed so that the edge of the ring groove 11 on the gear ring 1 is in inserted fit with the limiting ring 12 in the arc-shaped groove 34, and therefore the limiting ring 12 on one side of the gear ring 1 is installed. The arc-shaped groove 34 is used for reducing the position deviation of the limiting ring 12, and the containing groove 35 is used for reducing the position deviation of the gear ring 1, so that the assembling precision of the gear ring 1 and the limiting ring 12 is improved, and the defective rate is reduced.
The driving assembly 23 comprises a screw 231 in threaded connection with the base 2, the axial direction of the screw 231 is parallel to the top surface of the base 2 and is consistent with the axial direction of the gear ring 1, and one end of the screw 231 is rotatably connected with the push block 22. One end of the screw 231 is coaxially sleeved with a limiting wheel 26, the limiting wheel 26 and the screw 231 are integrally formed, a slot 25 in inserting fit with the limiting wheel 26 is formed in the push block 22, and the limiting wheel 26 is inserted into the slot 25 and is rotatably connected with the slot 25, so that the screw 231 is prevented from being separated from the push block 22. When the screw 231 rotates, the pushing block 22 is driven to move, so that the limit ring 12 is inserted into the ring groove 11 under the pushing force of the pushing block 22, thereby completing the assembly of the limit ring 12 and the gear ring 1.
The middle part of the base 2 is integrally provided with a rectangular guide block 24, a guide hole 241 is arranged on the guide block 24, and the push block 22 passes through the guide hole 241 and is connected with the guide hole 241 in a sliding manner. One part of the push block 22 is cylindrical, the other part is rectangular, and the peripheral side wall of the cylindrical part is integrally provided with a convex edge along the moving direction of the push block 22, and the convex edge is connected with the guide hole 241 in a sliding manner, so that the circumferential fixation of the push block 22 and the guide block 24 is realized, and the phenomenon that the position of the limit ring 12 is deviated due to the rotation of the push block 22 to influence the assembling precision is avoided. The guide hole 241 guides the push block 22, and reduces the deflection of the push block 22, so that the side surface of the limit ring 12 is flush with the end surface of the gear ring 1, and the assembling precision and quality of the limit ring 12 and the gear ring 1 are improved.
The mounting mechanism 3 includes a mounting shaft 31 slidably disposed on the push block 22 and an elastic member 32 disposed between the mounting shaft 31 and the push block 22. The installation axle 31 is the cylindricality, and the axial of installation axle 31 is unanimous with ejector pad 22's moving direction, and two circular slots have been seted up along the direction interval with installation axle 31 axial vertically on the ejector pad 22, and the installation axle 31 slides and wears to locate in the circular slot. A strip-shaped hole 36 is formed in the push block 22 along the moving direction of the push block, the strip-shaped hole 36 is communicated with the circular groove, a bolt 37 is arranged on the mounting shaft 31, and the bolt 37 penetrates through the strip-shaped hole 36 to be in threaded connection with the mounting shaft 31, so that the mounting shaft 31 is prevented from being separated from the circular groove. The elastic member 32 is a spring, and the spring is located in the circular groove and between the end wall of the mounting shaft 31 and the bottom wall of the circular groove, so that the end of the mounting shaft 31 protrudes out of the circular groove.
And the diameter of the mounting shaft 31 is the same as the inner diameter of the limit ring 12, the other limit ring 12 on the side of the gear ring 1 away from the baffle 21 is in plug fit with the mounting shaft 31, when the push block 22 pushes the mounting shaft 31 to abut against the end face of the gear ring 1, the mounting shaft 31 is pressed to contract the elastic member 32, and the limit ring 12 is separated from the mounting shaft 31 and inserted into the annular groove 11, so that the transition of the limit ring 12 from the mounting shaft 31 to the gear ring 1 is realized, and the mounting of the limit ring 12 is completed. And the installation axle 31 is provided with the chamfer on one end near the ring gear 1 to this is led spacing ring 12, makes things convenient for spacing ring 12 to cup joint on installation axle 31, thereby improves the loading speed of spacing ring 12, improves the packaging efficiency.
When the elastic member 32 makes the bolt 37 abut against one end of the strip-shaped hole 36, the length of the mounting shaft 31 extending out of the circular groove is greater than the length of a single limiting ring 12, so that a plurality of limiting rings 12 can be conveniently inserted into the mounting shaft 31, the time for loading the limiting rings 12 independently is reduced, and the assembling efficiency of the synchronous pulley is improved. When the push block 22 moves, the limit ring 12 close to one side of the gear ring 1 is inserted into the gear ring 1, and the end face of the limit ring 12 is flush with the end face of the gear ring 1, so that the rest of the limit ring 12 on the installation shaft 31 is reserved, the installation and the use at the next time are facilitated, and the assembly efficiency of the synchronous belt pulley is improved.
The installation axle 31 and two circular slots one-to-one, and arc wall 34, storage tank 35 all with installation axle 31 one-to-one to this makes ejector pad 22 drive spacing ring 12 and two ring gear 1 in two arc walls 34 in step when moving and assembles, with this required time of reduction independent assembly, has improved the efficiency of equipment.
The implementation principle of the embodiment is as follows: when the synchronous belt pulley is installed, an operator only needs to place the two gear rings 1 in the two accommodating grooves 35 respectively, insert the two limiting rings 12 into the arc-shaped grooves 34 respectively, and then sleeve the other two limiting rings 12 on the two installation shafts 31 respectively, wherein the axial directions of the limiting rings 12 and the gear rings 1 are consistent at the moment.
Then, the operator rotates the screw 231, the screw 231 pushes the push block 22, the push block 22 drives the mounting shaft 31 to move towards the gear ring 1, the mounting shaft 31 pushes the gear ring 1 to move along the accommodating groove 35, and the gear ring 1 moves to the baffle 21 and abuts against the limit ring 12 in the arc-shaped groove 34, so that the edge of the annular groove 11 of the gear ring 1 is inserted into the limit ring 12. At the same time, when the mounting shaft 31 abuts against the ring gear 1, the elastic member 32 is contracted by moving toward the circular groove by a reaction force. At this time, the retainer ring 12 is separated from the mounting shaft 31 and inserted into the ring groove 11, so that the transition of the retainer ring 12 from the mounting shaft 31 to the ring gear 1 is realized. At the moment, the limiting rings 12 on the two sides of the gear ring 1 are inserted into the gear ring 1, so that the synchronous belt wheel is assembled, the labor intensity of operators is reduced, the time consumed by assembly is reduced, and the assembly efficiency is improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a synchronous pulley assembler which characterized in that: including base (2), set up baffle (21) on base (2), slide and set up push block (22) on base (2), set up drive assembly (23) that drive push block (22) on base (2) removed and set up installation mechanism (3) on push block (22), installation mechanism (3) including slide wear to locate installation axle (31) on push block (22) and set up elastic component (32) between installation axle (31) and push block (22), elastic component (32) make installation axle (31) lean on the terminal surface protrusion push block (22) terminal surface of baffle (21) side, gear ring (1) are placed between push block (22) and baffle (21), spacing ring (12) and installation axle (31) grafting cooperation, and the slip direction of push block (22) is unanimous with the axial of gear ring (1), when push block (22) promote installation axle (31) butt in gear ring (1) terminal surface and make elastic component (32) compress time spacing ring (12) insert annular (12) and insert annular groove (21) when push block (22) promote installation axle (31) butt 11) And (4) the following steps.
2. The synchronous pulley assembly of claim 1, wherein: at least two limiting rings (12) are inserted on the mounting shaft (31).
3. The synchronous pulley assembly of claim 1, wherein: lean on baffle (21) side to open on base (2) and be equipped with bar groove (33), bar groove (33) opening just up and its inside wall flushes with baffle (21) side, set up on bar groove (33) diapire and peg graft complex arc wall (34) with spacing ring (12), the terminal surface of ring gear (1) is just right with the inner circle opening of spacing ring (12) when just spacing ring (12) are pegged graft with arc wall (34).
4. The synchronous pulley assembly as in claim 3, wherein: an accommodating groove (35) for accommodating the gear ring (1) is formed in the base (2), when the gear ring (1) is inserted into the accommodating groove (35), one side end face of the gear ring is opposite to the mounting shaft (31), and the other side end face of the gear ring is opposite to an inner ring opening of the limiting ring (12) in the arc-shaped groove (34).
5. The synchronous pulley assembly as in claim 4, wherein: the installation axle (31) have a plurality ofly and distribute along the vertical direction of ejector pad (22) moving direction, arc wall (34), storage tank (35) all with installation axle (31) one-to-one.
6. The synchronous pulley assembly of claim 1, wherein: and a chamfer is arranged at one end of the mounting shaft (31) close to the gear ring (1).
7. The synchronous pulley assembly of claim 1, wherein: the driving assembly (23) comprises a screw rod (231) in threaded connection with the base (2), one end of the screw rod (231) is rotationally connected with the push block (22), and the axial direction of the screw rod (231) is axially consistent with that of the gear ring (1).
8. The synchronous pulley assembler of claim 7, wherein: a guide block (24) is arranged between the threaded connection position of the screw rod (231) on the base (2) and the baffle (21), a guide hole (241) is formed in the guide block (24), and the push block (22) is slidably arranged in the guide hole (241).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921773595.9U CN210704577U (en) | 2019-10-19 | 2019-10-19 | Synchronous pulley assembly device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921773595.9U CN210704577U (en) | 2019-10-19 | 2019-10-19 | Synchronous pulley assembly device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN210704577U true CN210704577U (en) | 2020-06-09 |
Family
ID=70967918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201921773595.9U Expired - Fee Related CN210704577U (en) | 2019-10-19 | 2019-10-19 | Synchronous pulley assembly device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN210704577U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112660969A (en) * | 2020-12-30 | 2021-04-16 | 亚洲富士电梯股份有限公司 | Add-on elevator with protective structure, manufacturing equipment and manufacturing process |
-
2019
- 2019-10-19 CN CN201921773595.9U patent/CN210704577U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112660969A (en) * | 2020-12-30 | 2021-04-16 | 亚洲富士电梯股份有限公司 | Add-on elevator with protective structure, manufacturing equipment and manufacturing process |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN210704577U (en) | Synchronous pulley assembly device | |
CN207071708U (en) | A kind of hydraulic pressure automatic pipe cutting equipment | |
CA2228437C (en) | A tool for disassembling and assembling universal joints | |
CN110977397B (en) | Clutch press-fitting device | |
CN212371343U (en) | Taper inner hole large gear grinding clamp | |
CN113172093B (en) | Steel pipe processing production facility | |
CN210677715U (en) | Synchronous pulley assembly device | |
CN211708614U (en) | Automatic steel ball filling device for antitheft nut | |
CN113171187A (en) | Dental handpiece quick connector and dental handpiece oiling machine | |
CN218080752U (en) | Reciprocating shaft of handheld electric saw | |
CN207077214U (en) | A kind of fixture | |
CN219075538U (en) | Positioning shaft crimping jig | |
CN111215868A (en) | Key press | |
CN117685304B (en) | Universal transmission shaft connecting device convenient to dismantle and replace | |
CN112935757B (en) | Steel bowl pressing machine for transmission shaft joint | |
CN220480812U (en) | Press fitting tool for oil-gas separator | |
CN110043632B (en) | Gear shaft structure | |
CN219954015U (en) | Novel manual clutch | |
CN220971584U (en) | Feeding device of numerical control machine tool | |
CN219013294U (en) | Belt wheel structure and driving mechanism | |
CN218207683U (en) | Transmission gear forging for gearbox | |
CN219666256U (en) | Cam processing clamping tool structure | |
CN219851952U (en) | Copper strip riveting equipment with studs | |
CN210799982U (en) | Gear box | |
CN221336936U (en) | Fixing clamp for gear keyway broaching |
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: 20200609 Termination date: 20211019 |