CN212470858U - Trimming device is adjusted in processing of environmental protection graphite wearing parts - Google Patents
Trimming device is adjusted in processing of environmental protection graphite wearing parts Download PDFInfo
- Publication number
- CN212470858U CN212470858U CN202021220088.5U CN202021220088U CN212470858U CN 212470858 U CN212470858 U CN 212470858U CN 202021220088 U CN202021220088 U CN 202021220088U CN 212470858 U CN212470858 U CN 212470858U
- Authority
- CN
- China
- Prior art keywords
- rotating
- groove
- rod
- extends
- bevel gear
- 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
- Transmission Devices (AREA)
Abstract
The utility model discloses a trimming device is adjusted in processing of environmental protection graphite wearing parts, including grudging post, spacing groove and base, the grudging post is installed to one side on base top, and has seted up one side of grudging post and has supported the groove, the top of base is provided with the revolving stage, and one side of revolving stage extends to the inside that supports the groove, the slide is installed to the bottom of revolving stage, one side welding that the grudging post was kept away from on the base top has the bracing piece, and the top of bracing piece extends to the inside of slide, the inside of revolving stage one side is provided with fixture, driving motor is installed to the intermediate position department on base top. The utility model discloses a rotate the second crank, drive worm drive belt drive gear and rack, make and change the roller and be driven the translation to change the distance between roller and the wearing parts surface, can carry out the burring to the wear-resisting roller of equidimension not, such design is simple to use simultaneously, changes the stable in position of roller, has realized the regulatory function of device.
Description
Technical Field
The utility model relates to a machine-building technical field specifically is a trimming device is adjusted in processing of environmental protection graphite wearing parts.
Background
The machine is an integral part in modern life, various machines are composed of a plurality of small parts, the small parts are matched to operate an integral mechanical device, the small parts are possibly worn in the operation process to cause the service life of the machine to be short, therefore, wear-resistant parts are usually protected by using wear-resistant parts to protect the parts, and the wear-resistant parts are easy to generate burrs in the machining process and can be used only by cleaning the wear-resistant parts.
The existing wear-resistant part finishing device has the following defects:
(1) the position of the deburring roller cannot be conveniently and stably adjusted so as to be suitable for different wear-resistant parts;
(2) the wear-resistant part is not stably clamped, so that the wear-resistant part is easy to displace in the machining process;
(3) the chips generated in the deburring process are not cleaned, so that the device is easily damaged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a trimming device is adjusted in processing of environmental protection graphite wearing parts to the position that can not conveniently adjust the deburring roller firmly that proposes in solving above-mentioned background art, so that adapt to the problem of different wearing parts.
In order to achieve the above object, the utility model provides a following technical scheme: an environment-friendly graphite wear-resistant part processing, adjusting and trimming device comprises a vertical frame, a limiting groove and a base, wherein the vertical frame is installed on one side of the top end of the base, a supporting groove is formed in one side of the vertical frame, a rotating table is arranged above the base, one side of the rotating table extends into the supporting groove, a slide way is installed at the bottom end of the rotating table, a supporting rod is welded on one side, far away from the vertical frame, of the top end of the base, the top end of the supporting rod extends into the slide way, a clamping mechanism is arranged inside one side of the rotating table, a driving motor is installed at the middle position of the top end of the base, a speed reducer is installed at the output end of the driving motor through a rotating shaft, the top end of the speed reducer is installed at the middle position of the bottom end of the rotating table, a transmission mechanism is arranged inside the bottom end of, the utility model discloses a spacing groove, including worm, fixed shaft, spacing groove, fixed shaft.
Preferably, the sliding distance of the limiting slide block is smaller than the length of the limiting groove, and the length of the limiting groove is smaller than half of the length of the rotating table.
Preferably, fixture's inside has set gradually first slider, splint, transfer line, first crank, lead screw, thread block and first spout, first spout is seted up in the inside of revolving stage, and the equal sliding connection in both ends of first spout has first slider, splint are all installed on the top of the inside first slider of first spout, and the top of splint all extends to the top of revolving stage, one side of first slider all articulates there is the transfer line, the lead screw sets up in one side of revolving stage, and one side of lead screw is provided with first crank, the inside that the other side of lead screw extends to the revolving stage is connected in the inside one side of revolving stage through the pivot, and lead screw outer wall cover is equipped with the thread block, the one end of transfer line all is fixed in the one end of thread block.
Preferably, drive mechanism's inside has set gradually initiative runner, belt, driven runner, first bull stick, first bevel gear, second bull stick and second bevel gear, first bull stick rotates to be connected in the inside bottom of grudging post, and the outer wall cover of first bull stick bottom is equipped with driven runner, the initiative runner passes through the axis of rotation and installs on driving motor's top, and installs the belt between the outer wall of one side of initiative runner and driven runner, the top of first bull stick is fixed with first bevel gear, the inside one side of first bevel gear top grudging post rotates and is connected with the second bull stick, and one side of second bull stick extends to one side of grudging post, the outer wall cover of first bevel gear one side second bull stick is equipped with second bevel gear, one side fixedly connected with fan of grudging post one side second bull stick.
Preferably, the first bevel gear and the second bevel gear are meshed, and the size of the first bevel gear is the same as that of the second bevel gear.
Preferably, the worm is meshed with a fixed gear, and the fixed gear is meshed with the rack.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the device is provided with the limiting groove, the rotary roller, the limiting sliding block, the second crank handle, the worm, the fixed shaft, the rack and the gear, the rotary roller can be driven to translate by rotating the second crank handle and driving the gear and the rack through the worm, so that the distance between the rotary roller and the surface of the wear-resistant part can be changed, the wear-resistant rollers with different sizes can be deburred, and meanwhile, the design is simple to use, the position of the rotary roller is stable, and the adjusting function of the device is realized;
(2) through the arrangement of the rotating table and the clamping mechanism, the screw rod can be driven by rotating the first crank, the two clamping plates move oppositely for the same distance by utilizing the movement of the thread block, the wear-resistant part can be clamped from the inner ring, the wear-resistant part is prevented from being damaged due to the displacement in the trimming process, meanwhile, the design can be suitable for wear-resistant parts of various sizes, the positioning is convenient, the clamping is stable, and the clamping function of the device is realized;
(3) through being provided with driving motor, drive mechanism and fan, can not need further operation ground to transmit power to fan department when motor start-up work, the fan is bloied the department of polishing, blows off the tiny powder that grinds off and prevents that accumulation from causing harm in its entering device's the gap, and protection device, its convenient to use need not artifical the start-up, has realized the dusting function of device.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
fig. 2 is a schematic top view of the rotary table according to the present invention;
fig. 3 is a schematic side view of the cross-sectional structure of the present invention;
fig. 4 is a schematic view of the structure of the rotating table and the slide rail of the present invention.
In the figure: 1. erecting a frame; 2. a limiting groove; 3. rotating the roller; 4. a limiting slide block; 5. a rotating table; 6. a clamping mechanism; 601. a first slider; 602. a splint; 603. a transmission rod; 604. a first crank; 605. a screw rod; 606. a thread block; 607. a first chute; 7. a slideway; 8. a support bar; 9. a speed reducer; 10. a base; 11. a drive motor; 12. a transmission mechanism; 1201. a driving runner; 1202. a belt; 1203. a driven runner; 1204. a first rotating lever; 1205. a first bevel gear; 1206. a second rotating rod; 1207. a second bevel gear; 13. a support groove; 14. a fan; 15. a second crank; 16. a worm; 17. a fixed shaft; 18. a rack; 19. and fixing the gear.
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 a technical solution: an environment-friendly graphite wear-resistant part machining, adjusting and trimming device comprises a vertical frame 1, a limiting groove 2 and a base 10, wherein the vertical frame 1 is installed on one side of the top end of the base 10, a supporting groove 13 is formed in one side of the vertical frame 1, a rotating table 5 is arranged above the base 10, one side of the rotating table 5 extends into the supporting groove 13, a slide 7 is installed at the bottom end of the rotating table 5, a supporting rod 8 is welded on one side, away from the vertical frame 1, of the top end of the base 10, the top end of the supporting rod 8 extends into the slide 7, and a clamping mechanism 6 is arranged inside one side of the rotating table 5;
the clamping mechanism 6 is internally provided with a first sliding block 601, a clamping plate 602, a transmission rod 603, a first crank 604, a screw rod 605, a thread block 606 and a first sliding groove 607 in sequence, the first sliding groove 607 is arranged in the rotating platform 5, the two ends of the interior of the first sliding groove 607 are connected with the first sliding block 601 in a sliding manner, the clamping plate 602 is arranged at the top end of the first sliding block 601 in the first sliding groove 607, the top end of the clamping plate 602 extends to the upper side of the rotating platform 5, one side of the first sliding block 601 is hinged with the transmission rod 603, the screw rod 605 is arranged on one side of the rotating platform 5, the first crank 604 is arranged on one side of the screw rod 605, the other side of the screw rod 605 extends to the interior of the rotating platform 5 and is connected to one side of the interior of the rotating platform 5 through a rotating shaft, the thread block 606 is;
specifically, as shown in fig. 1, fig. 2 and fig. 3, the first crank 604 is rotated to drive the screw rod 605 to rotate, so that the screw block 606 moves towards the first sliding groove 607 along the screw rod 605, and the transmission rod 603 is driven to rotate to transmit force to the first sliding block 601, so that the first sliding block 601 slides towards two ends of the first sliding groove 607 in the first sliding groove 607, and at this time, the first sliding block 601 drives the clamp plate 602 to slowly move towards the outer wall of the wear-resistant part until the clamp plate 602 presses the inner wall of the wear-resistant part to fix the wear-resistant part and stop the wear-resistant part, thereby having the advantage of fixing the wear-resistant;
a driving motor 11 is installed at the middle position of the top end of the base 10, the type of the driving motor 11 can be W21-IP56, a speed reducer 9 is installed at the output end of the driving motor 11 through a rotating shaft, the top end of the speed reducer 9 is installed at the middle position of the bottom end of the rotating platform 5, and a transmission mechanism 12 is arranged inside the bottom end of the vertical frame 1;
the transmission mechanism 12 is internally provided with a driving rotating wheel 1201, a belt 1202, a driven rotating wheel 1203, a first rotating rod 1204, a first bevel gear 1205, a second rotating rod 1206 and a second bevel gear 1207 in sequence, the first rotating rod 1204 is rotatably connected with the bottom end in the stand 1, and the outer wall of the bottom end of the first rotating rod 1204 is sleeved with a driven rotating wheel 1203, the driving rotating wheel 1201 is arranged at the top end of the driving motor 11 through a rotating shaft, a belt 1202 is arranged between the driving rotating wheel 1201 and the outer wall of one side of the driven rotating wheel 1203, a first conical gear 1205 is fixed at the top end of the first rotating rod 1204, a second rotating rod 1206 is rotatably connected with one side of the inner part of the vertical frame 1 above the first conical gear 1205, one side of the second rotating rod 1206 extends to one side of the vertical frame 1, a second bevel gear 1207 is sleeved on the outer wall of the second rotating rod 1206 on one side of the first bevel gear 1205, and a fan 14 is fixedly connected to one side of the second rotating rod 1206 on one side of the vertical frame 1;
specifically, as shown in fig. 1, the driving rotating wheel 1201 rotates to drive the driven rotating wheel 1203 to rotate through the belt 1202, that is, the first rotating rod 1204 is driven to rotate to make the first bevel gear 1205 rotate, and the first bevel gear 1205 transmits the rotation to the second bevel gear 1207, so that the second rotating rod 1206 rotates at the same speed, and the fan 14 can be switched on and off along with the switch of the device, which is convenient for use;
the first bevel gear 1205 and the second bevel gear 1207 are meshed, and the size of the first bevel gear 1205 is the same as that of the second bevel gear 1207;
specifically, as shown in fig. 1, the design can make the fan 14 and the driving motor 11 run at the same speed, so that the fan has the advantage of accurate transmission;
a worm 16 is rotatably connected to one side inside the top end of the stand 1, one side of the worm 16 extends to one side of the stand 1, a second crank 15 is mounted on one side of the worm 16, a fixed gear 19 is rotatably connected between the inner walls of the two ends of the stand 1 below the worm 16, and a rack 18 is mounted below the fixed gear 19 inside the stand 1;
the worm 16 is meshed with the fixed gear 19, and the fixed gear 19 is meshed with the rack 18;
specifically, as shown in fig. 1 and 3, the design can enable the rack 18 to be driven in a single direction, so that the stability of the rotating roller 3 is ensured, and the advantage of convenient adjustment is achieved;
a limiting groove 2 is formed in one side, close to the supporting rod 8, of the rack 18, one side of the rack 18 extends into the limiting groove 2, and a limiting sliding block 4 is welded on one side of the rack 18 in the limiting groove 2;
the sliding distance of the limiting slide block 4 is less than the length of the limiting groove 2, and the length of the limiting groove 2 is less than half of the length of the rotating table 5;
specifically, as shown in fig. 1, the design can ensure the sliding distance of the limiting slide block 4, save space and materials, and save resources;
the middle position department welding of limiting slide 4 bottom has fixed axle 17, and the bottom of fixed axle 17 extends to the below of spacing groove 2, and the outer wall cover of fixed axle 17 is equipped with changes roller 3.
The working principle is as follows: when the device is used, firstly, a trimmed wear-resistant part is placed on the outer side of the clamping plate 602 above the rotating table 5, the first crank 604 is rotated at the moment, the first crank drives the screw rod 605 to rotate, so that the thread block 606 moves towards the direction of the first sliding groove 607 along the screw rod 605, the transmission rod 603 is driven to rotate, force is transmitted to the first sliding block 601, the first sliding block 601 slides towards the two ends of the first sliding groove 607 in the first sliding groove 607, the first sliding block 601 drives the clamping plate 602 to slowly move towards the outer wall of the wear-resistant part at the moment, and the wear-resistant part can be stably fixed until the clamping plate 602 tightly presses the inner wall of the wear-resistant part to fix the wear.
Then, the second crank 15 is rotated, the second crank 15 drives the worm 16 to rotate, so that the fixed gear 19 slowly rotates, the fixed gear 19 drives the rack 18 to move, the rack drives the limit slider 4 to enable the limit slider 4 to slide in the limit groove 2, meanwhile, the limit slider 4 drives the fixed shaft 17 to translate the position of the rotating roller 3 until the position of the rotating roller stops contacting with the surface of the wear-resistant part, the driving motor 11 is started, the driving motor 11 applies slow rotation speed to the rotating platform 5 through the speed reduction effect of the speed reducer 9, the slide 7 at the bottom end of the rotating platform 5 slides along the top end of the supporting rod 8, one side of the rotating platform 5 is limited and supported by the supporting groove 13 to slowly rotate in the rotating platform, and therefore the wear-resistant.
Finally, it is incessantly extrusion contact with commentaries on classics roller 3 thereby makes its outer wall maintained, simultaneously, the rotation of initiative runner 1201 on the driving motor 11 drives driven runner 1203 through belt 1202 and rotates, can make first conical gear 1205 rotate through driving first bull stick 1204 rotation, first conical gear 1205 will rotate and transmit for second conical gear 1207, so second bull stick 1206 rotates with fast, can make fan 14 rotate and blow away the piece, after finishing using, it can to take off the wearing parts.
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 a trimming means is adjusted in processing of environmental protection graphite wearing parts, includes grudging post (1), spacing groove (2) and base (10), its characterized in that: the base is characterized in that a stand (1) is installed on one side of the top end of a base (10), a supporting groove (13) is formed in one side of the stand (1), a rotating table (5) is arranged above the base (10), one side of the rotating table (5) extends into the supporting groove (13), a slide (7) is installed at the bottom end of the rotating table (5), a supporting rod (8) is welded on one side, far away from the stand (1), of the top end of the base (10), the top end of the supporting rod (8) extends into the slide (7), a clamping mechanism (6) is arranged in one side of the rotating table (5), a driving motor (11) is installed at the middle position of the top end of the base (10), a speed reducer (9) is installed at the output end of the driving motor (11) through a rotating shaft, and the top end of the speed reducer (9) is installed at the, the inside of grudging post (1) bottom is provided with drive mechanism (12), the inside one side in grudging post (1) top rotates and is connected with worm (16), and one side of worm (16) extends to one side of grudging post (1), second crank (15) are installed to one side of worm (16), it is connected with fixed gear (19) to rotate between the both ends inner wall of grudging post (1) below worm (16), and rack (18) are installed to the below of fixed gear (19) in grudging post (1), spacing groove (2) have been seted up to one side that rack (18) are close to bracing piece (8), and one side of rack (18) extends to the inside of spacing groove (2), spacing slider (4) have been welded to one side of rack (18) in spacing groove (2), fixed axle (17) have been welded to the intermediate position department of spacing slider (4) bottom, and the bottom of fixed axle (17) extends to the below of spacing groove (2), the outer wall cover of fixed axle (17) is equipped with changes roller (3).
2. The environment-friendly graphite wear-resistant part machining, adjusting and trimming device as claimed in claim 1, wherein: the sliding distance of the limiting sliding block (4) is smaller than the length of the limiting groove (2), and the length of the limiting groove (2) is smaller than half of the length of the rotating table (5).
3. The environment-friendly graphite wear-resistant part machining, adjusting and trimming device as claimed in claim 1, wherein: the clamping mechanism (6) is internally provided with a first sliding block (601), a clamping plate (602), a transmission rod (603), a first crank (604), a screw rod (605), a thread block (606) and a first sliding groove (607) in sequence, the first sliding groove (607) is arranged in the rotating platform (5), two ends of the inner part of the first sliding groove (607) are connected with the first sliding block (601) in a sliding way, the clamping plate (602) is arranged at the top end of the first sliding block (601) in the first sliding groove (607), the top end of the clamping plate (602) extends to the upper part of the rotating platform (5), one side of the first sliding block (601) is hinged with the transmission rod (603), the screw rod (605) is arranged at one side of the rotating platform (5), the first crank (605) is arranged at one side of the screw rod (605), the other side of the screw rod (605) extends to the inner part of the rotating platform (5) and is connected to one side of the inner part of, and the outer wall of the screw rod (605) is sleeved with a thread block (606), and one end of the transmission rod (603) is fixed at one end of the thread block (606).
4. The environment-friendly graphite wear-resistant part machining, adjusting and trimming device as claimed in claim 1, wherein: the transmission mechanism (12) is internally provided with a driving rotating wheel (1201), a belt (1202), a driven rotating wheel (1203), a first rotating rod (1204), a first bevel gear (1205), a second rotating rod (1206) and a second bevel gear (1207) in sequence, the first rotating rod (1204) is rotatably connected to the bottom end inside the stand (1), the driven rotating wheel (1203) is sleeved on the outer wall of the bottom end of the first rotating rod (1204), the driving rotating wheel (1201) is installed at the top end of the driving motor (11) through a rotating shaft, the belt (1202) is installed between the driving rotating wheel (1201) and the outer wall of one side of the driven rotating wheel (1203), the first bevel gear (1205) is fixed at the top end of the first rotating rod (1204), the second rotating rod (1206) is rotatably connected to one side of the stand (1) above the first bevel gear (1205), and one side of the second rotating rod (1206) extends to one side of the stand (1), the outer wall cover of first conical gear (1205) one side second bull (1206) is equipped with second conical gear (1207), one side fixedly connected with fan (14) of grudging post (1) one side second bull (1206).
5. The environment-friendly graphite wear-resistant part machining, adjusting and trimming device as claimed in claim 4, wherein: the first bevel gear (1205) and the second bevel gear (1207) are meshed, and the size of the first bevel gear (1205) is the same as that of the second bevel gear (1207).
6. The environment-friendly graphite wear-resistant part machining, adjusting and trimming device as claimed in claim 1, wherein: the worm (16) is meshed with the fixed gear (19), and the fixed gear (19) is meshed with the rack (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021220088.5U CN212470858U (en) | 2020-06-29 | 2020-06-29 | Trimming device is adjusted in processing of environmental protection graphite wearing parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021220088.5U CN212470858U (en) | 2020-06-29 | 2020-06-29 | Trimming device is adjusted in processing of environmental protection graphite wearing parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212470858U true CN212470858U (en) | 2021-02-05 |
Family
ID=74412814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021220088.5U Expired - Fee Related CN212470858U (en) | 2020-06-29 | 2020-06-29 | Trimming device is adjusted in processing of environmental protection graphite wearing parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212470858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334153A (en) * | 2021-05-25 | 2021-09-03 | 东台升华工具有限公司 | Drill bit cutting edge polishing device and polishing method thereof |
-
2020
- 2020-06-29 CN CN202021220088.5U patent/CN212470858U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334153A (en) * | 2021-05-25 | 2021-09-03 | 东台升华工具有限公司 | Drill bit cutting edge polishing device and polishing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112428065A (en) | Automatic beveler of saw blade | |
| CN105538061A (en) | Inner-hole grinding machine | |
| CN212470858U (en) | Trimming device is adjusted in processing of environmental protection graphite wearing parts | |
| CN220178894U (en) | Deburring mechanism for hardware machining | |
| CN211940155U (en) | Former is used in production of HDI prepolymer rubber roll | |
| CN212371291U (en) | Thin-wall stainless steel pipe cutting machine capable of preventing scrap iron from splashing | |
| CN209036212U (en) | Special-shaped small precision part grinding device | |
| CN112475957B (en) | Train swing bolster clamping device easy to position | |
| CN108188646A (en) | A kind of triaxially movable roll overlaying drive system | |
| CN211708997U (en) | Steel pipe burnishing device for machining | |
| CN112757146A (en) | Synchronous heat dissipation formula centrifugal grinder | |
| CN111716192A (en) | Deburring device is used in metalworking with adjustable | |
| CN220740665U (en) | Aluminum profile polishing fixing device | |
| CN217317512U (en) | Burnishing device is used in bamboo chopping block production and processing convenient to dismouting buffing wheel | |
| CN220446069U (en) | Metalwork equipment of polishing for hardware processing | |
| CN214166801U (en) | Unloader of coating machine | |
| CN209578292U (en) | Slotter is used in a kind of key embryo production of remote-control key | |
| CN220296610U (en) | Novel polishing device for yarn cylinder | |
| CN216066694U (en) | Centerless grinding machine convenient to fast clamp workpiece | |
| CN218225839U (en) | Excircle grinding device of conveying roller | |
| CN211490864U (en) | Rotary adjusting type thread ring gauge grinding machine tool | |
| CN220745966U (en) | Leather grinding assembly for leather grinding machine | |
| CN221111090U (en) | CNC precision machining is with work piece burring device | |
| CN213439077U (en) | Grinding machine spindle box mechanism with adjustable gap | |
| CN220718843U (en) | Workpiece polishing device with replaceable friction piece |
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: 20210205 Termination date: 20210629 |