CN110159047B - Manual-automatic integrated movable top cover for exhaust tower of test operation platform of ultra-high-power gas turbine - Google Patents
Manual-automatic integrated movable top cover for exhaust tower of test operation platform of ultra-high-power gas turbine Download PDFInfo
- Publication number
- CN110159047B CN110159047B CN201910471108.1A CN201910471108A CN110159047B CN 110159047 B CN110159047 B CN 110159047B CN 201910471108 A CN201910471108 A CN 201910471108A CN 110159047 B CN110159047 B CN 110159047B
- Authority
- CN
- China
- Prior art keywords
- shaft
- gear
- top cover
- transmission
- exhaust tower
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/003—Access covers or locks therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Gear Transmission (AREA)
Abstract
The utility model provides a super high power gas turbine tries operation platform exhaust tower and removes top cap with manual-automatic an organic whole, it relates to one kind and removes the top cap, concretely relates to super high power gas turbine tries operation platform exhaust tower and removes top cap with manual-automatic an organic whole. The invention aims to solve the problems that the existing electric translation top cover for the exhaust tower can be bent and deformed after being used for a period of time, and the electric translation top cover for the exhaust tower is frequently broken due to overlarge torque bearing force because the electric translation top cover is arranged in an inclined mode. The invention comprises two transition transmission assemblies, two first transmission shafts and two second transmission shafts, wherein the two transition transmission assemblies are respectively arranged at two sides of a first base truss, a rotating shaft of a driving motor is connected with the transition transmission assemblies through the first transmission shafts, the transition transmission assemblies are connected with one adjacent driving support assembly through the second transmission shafts, and the axes of the first transmission shafts are parallel to the axes of the second transmission shafts. The invention belongs to the field of tail gas emission equipment.
Description
Technical Field
The invention relates to a movable top cover, in particular to a manual-automatic integrated movable top cover for an exhaust tower of a test run platform of an ultra-high-power gas turbine, and belongs to the field of tail gas emission equipment.
Background
The exhaust tower is a high-rise structure for discharging production tail gas in enterprises of petroleum, chemical industry, metallurgy, light industry and the like. In sleet weather, the top of exhaust tower can get into a large amount of sleets, influences the normal work of exhaust tower, in order to prevent that sleet from getting into the exhaust tower from the top of exhaust tower, the staff has set up electronic translation top cap at the top of exhaust tower, however the transmission shaft length of this kind of electronic translation top cap is too big, can take place bending deformation after using a period, and because its mode that adopts the slope to set up, cause it often can be too big because of bearing the torsional force, take place disconnected axle phenomenon.
Disclosure of Invention
The invention aims to solve the problems that the existing electric translation top cover for the exhaust tower can be bent and deformed after being used for a period of time, and the electric translation top cover for the exhaust tower is arranged in an inclined mode, so that the electric translation top cover for the exhaust tower often has a shaft breakage phenomenon due to overlarge torque bearing force, and further provides a manual-automatic integrated movable top cover for an ultra-high-power gas turbine test operation platform exhaust tower.
The technical scheme adopted by the invention for solving the problems is as follows: the invention comprises a first base truss, a driving motor, a first supporting wheel component, two driving supporting components, two translation supporting components and two top cover components, wherein one driving supporting component and one translation supporting component are sequentially arranged on two sides of the first base truss from inside to outside; the invention also comprises two transition transmission components, two first transmission shafts and two second transmission shafts, wherein the two transition transmission components are respectively arranged at two sides of the first base truss, the transition transmission components are positioned between the first base truss and the driving support components, the rotating shaft of the driving motor is connected with the transition transmission components through the first transmission shafts, the transition transmission components are connected with one adjacent driving support component through the second transmission shafts, the axes of the first transmission shafts are parallel to the axes of the second transmission shafts, and the axes of the first transmission shafts and the axes of the second transmission shafts are parallel to the horizontal plane.
Further, every the transition transmission subassembly includes the second base truss, the box, the change shaft, the one-level driving gear, the second grade driving gear, one-level driven gear, the second grade driven gear, one-level transition gear, the second grade transition gear, input shaft and output shaft, the change shaft, parallel mount is in the box side by side in proper order from top to bottom to the input shaft, linear motion about the change shaft can be in the box, the one end and the first transmission shaft of input shaft are connected, the one end and the second transmission shaft of output shaft are connected, the one-level driving gear, the second grade driving gear is fixed the suit side by side on the input shaft, one-level transition gear and second grade transition gear are fixed the suit side by side on the change shaft, one-level driven gear, the second grade driven gear is.
Further, each transition transmission assembly still includes platform and ladder, and platform horizontal installation is at the top of second base truss, and the vertical setting of ladder, and the outward flange fixed connection of the upper end of ladder and platform.
Furthermore, each driving support assembly comprises a third base truss, a shaft seat, a gear shaft, a gear and a rack, the gear shaft is horizontally arranged at the upper end of the third base truss through the shaft seat, one end of the gear shaft is connected with the second transmission shaft, the gear is fixedly sleeved on the gear shaft, the rack is fixedly arranged on the lower surface of the top cover assembly, and the gear is meshed with the rack.
Furthermore, every the roof module includes two panels, two supports and two main trusses, and two main trusses are the style of calligraphy and set up, and two panels set up respectively on two main trusses, and the lower surface of every panel respectively is connected through the upper surface fixed of a support and a corresponding main truss, and the rack is connected with the lower surface fixed of main truss.
Furthermore, each translation supporting assembly comprises a wheel shaft, a supporting wheel, a wheel seat, a fourth base truss and a track, the track is fixedly installed on the upper surface of the fourth base truss, the wheel seat is fixedly installed on the lower surface of the outer end of the main truss, the supporting wheel is installed on the wheel seat through the wheel shaft, and the supporting wheel is in rolling connection with the track.
The invention has the beneficial effects that: the transmission shaft of the existing electric translation top cover is divided into two sections, so that the problem of deformation of the transmission shaft due to overlong length is solved; the two sections of transmission shafts are arranged in parallel and are both parallel to the horizontal plane, so that the influence of the inclined torque on the service life of the transmission shafts is avoided, and the service life of the transmission shafts is prolonged by more than two times; the transition transmission assembly can realize two-stage speed change, and workers can adjust the transmission ratio of the transition transmission assembly according to actual needs so as to adjust the opening and closing speed of the top cover; the invention can prevent rain and snow from entering the exhaust tower in rainy and snowy days, and ensure the normal and stable operation of the exhaust tower.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic illustration of a transition drive assembly;
FIG. 4 is a schematic structural view of the drive support assembly;
fig. 5 is a schematic structural view of the translation support assembly.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 5, and the manual-automatic integrated movable top cover for the exhaust tower of the test operation platform of the ultra-high power gas turbine in the embodiment comprises a first base truss 1, a driving motor 2, a first supporting wheel component 3, two driving supporting components, two translation supporting components and two top cover components, wherein one driving supporting component and one translation supporting component are sequentially arranged on two sides of the first base truss 1 from inside to outside, the two top cover components are arranged side by side, lower surfaces of two ends of each top cover component are connected with the driving supporting components and the translation supporting components, a lower surface in the middle of each top cover component is connected with an upper surface of the first base truss 1 through the first supporting wheel component 3 in a rolling manner, and the driving motor 2 is fixedly installed on the first base truss 1; this embodiment still includes two transition transmission subassemblies, two first transmission shafts 4, two second transmission shafts 5, two the transition transmission subassembly sets up respectively in the both sides of first base truss 1, just the transition transmission subassembly be located first base truss 1 with between the drive supporting component, driving motor 2's axis of rotation through first transmission shaft 4 with the transition transmission subassembly is connected, the transition transmission subassembly pass through second transmission shaft 5 and one that closes on mutually the drive supporting component is connected, and the axis of first transmission shaft 4 is parallel with the axis of second transmission shaft 5, and the axis of first transmission shaft 4, the axis of second transmission shaft 5 all are parallel with the horizontal plane.
The second embodiment is as follows: the embodiment is described with reference to fig. 1 to 5, and each of the transition transmission assemblies of the manual-automatic integrated moving top cover for the exhaust tower of the test-run platform of the ultra-high power gas turbine in the embodiment includes a second base truss 6, a box 7, a speed-changing shaft 8, a first-stage driving gear 9, a second-stage driving gear 10, a first-stage driven gear 11, a second-stage driven gear 12, a first-stage transition gear 13, a second-stage transition gear 14, an input shaft 15 and an output shaft 16, wherein the output shaft 16, the speed-changing shaft 8 and the input shaft 15 are sequentially installed in parallel in the box 7 from top to bottom, the speed-changing shaft 8 can move linearly left and right in the box 7, one end of the input shaft 15 is connected with the first transmission shaft 4, one end of the output shaft 16 is connected with the second transmission shaft 5, the first-stage driving gear 9 and the second-stage driving gear 10 are fixedly sleeved on the, the first-stage driven gear 11 and the second-stage driven gear 12 are fixedly sleeved on the output shaft 16 side by side, and the box body 7 is fixedly installed on the second base truss 6.
In the embodiment, the speed change shaft 8 is pushed to enable the first-stage transition gear 13 to be meshed with the first-stage driving gear 9 and the first-stage driven gear 11 respectively, and at the moment, the first transmission shaft 4 drives the second transmission shaft 5 to rotate at a first-stage speed through the transition transmission assembly; the speed changing shaft 8 is pulled to enable the second-stage transition gear 14 to be meshed with the second-stage driving gear 10 and the second-stage driven gear 12 respectively, and at the moment, the first transmission shaft 4 drives the second transmission shaft 5 to transmit at a second-stage speed through the transition transmission assembly.
Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: the embodiment is described with reference to fig. 1 to 5, and each transition transmission assembly of the manual-automatic integrated movable top cover for the exhaust tower of the test-run platform of the ultra-high power gas turbine further comprises a platform 17 and a ladder 18, wherein the platform 17 is horizontally installed at the top of the second base truss 6, the ladder 18 is vertically arranged, and the upper end of the ladder 18 is fixedly connected with the outer edge of the platform 17. Other components and connection relationships are the same as those in the second embodiment.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 to 5, and each driving support component of the manual-automatic integrated movable top cover for the test-run platform exhaust tower of the ultra-high power gas turbine in the embodiment includes a third base truss 19, a shaft seat 20, a gear shaft 21, a gear 22 and a rack 23, the gear shaft 21 is horizontally installed at the upper end of the third base truss 19 through the shaft seat 20, one end of the gear shaft 21 is connected with the second transmission shaft 5, the gear 22 is fixedly sleeved on the gear shaft 21, the rack 23 is fixedly installed on the lower surface of the top cover component, and the gear 22 is meshed with the rack 23. Other components and connections are the same as those in the first embodiment.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 to 5, and each of the roof assemblies of the manual-automatic integrated movable roof for the exhaust tower of the test-run platform of the ultra-high power gas turbine in the embodiment includes two panels 24, two supports 25 and two main trusses 26, the two main trusses 26 are arranged in a straight line, the two panels 24 are respectively arranged on the two main trusses 26, the lower surface of each panel 24 is respectively fixedly connected with the upper surface of the corresponding one of the main trusses 26 through one of the supports 25, and the rack 23 is fixedly connected with the lower surface of the main truss 26. Other components and connection relationships are the same as those in the first or fourth embodiment.
The sixth specific implementation mode: the embodiment is described with reference to fig. 1 to 5, and each of the translational support assemblies of the manual-automatic integrated movable top cover for the exhaust tower of the test-run platform of the super-power gas turbine in the embodiment includes an axle 27, a support wheel 28, a wheel seat 29, a fourth base truss 30 and a rail 31, the rail 31 is fixedly installed on the upper surface of the fourth base truss 30, the wheel seat 29 is fixedly installed on the lower surface of the outer end of the main truss 26, the support wheel 28 is installed on the wheel seat 29 through the axle 27, and the support wheel 28 is in rolling connection with the rail 31. Other components and connection relationships are the same as those in the first or fourth embodiment.
Principle of operation
During the use, driving motor 2 drives first transmission shaft 4 and rotates, and first transmission shaft 4 drives second transmission shaft 5 through transition drive assembly and rotates, and second transmission shaft 5 drives gear shaft 21 and rotates, and gear shaft 21 drives gear 22 and rotates, and gear 22 and rack 23 mesh make rack 23 drive main truss 26 and move on the horizontal direction, and then realize opening and closing of two top cap subassemblies.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A manual-automatic integrated movable top cover for an exhaust tower of a test operation platform of an ultra-high power gas turbine comprises a first base truss (1), a driving motor (2), a first supporting wheel component (3), two driving supporting components, two translation supporting components and two top cover components, wherein one driving supporting component and one translation supporting component are sequentially arranged on two sides of the first base truss (1) from inside to outside, the two top cover components are arranged side by side, one end of each top cover component is connected with one driving supporting component and one translation supporting component, the other end of each top cover component is connected with the other driving supporting component and the other translation supporting component, the lower surface in the middle of each top cover component is connected with the upper surface of the first base truss (1) in a rolling manner through the first supporting wheel component (3), the driving motor (2) is fixedly arranged on the first base truss (1); the method is characterized in that: a super large power gas turbine tries on movable platform exhaust tower and removes top cap with manual-automatic an organic whole still includes two transition transmission subassemblies, two first transmission shafts (4), two second transmission shafts (5), two transition transmission subassemblies set up respectively in the both sides of first base truss (1), just transition transmission subassembly be located first base truss (1) with between the drive supporting component, the axis of rotation of driving motor (2) through first transmission shaft (4) with transition transmission subassembly connects, transition transmission subassembly pass through second transmission shaft (5) and one that closes on mutually drive supporting component connects, and the axis of first transmission shaft (4) is parallel with the axis of second transmission shaft (5), and the axis of first transmission shaft (4), the axis of second transmission shaft (5) all is parallel with the horizontal plane.
2. The manual-automatic integrated movable top cover for the exhaust tower of the test run platform of the ultra-high power gas turbine as claimed in claim 1, wherein: each transition transmission assembly comprises a second base truss (6), a box body (7), a speed change shaft (8), a first-stage driving gear (9), a second-stage driving gear (10), a first-stage driven gear (11), a second-stage driven gear (12), a first-stage transition gear (13), a second-stage transition gear (14), an input shaft (15) and an output shaft (16), wherein the output shaft (16), the speed change shaft (8) and the input shaft (15) are sequentially arranged in parallel in the box body (7) from top to bottom, the speed change shaft (8) can linearly move left and right in the box body (7), one end of the input shaft (15) is connected with the first transmission shaft (4), one end of the output shaft (16) is connected with the second transmission shaft (5), the first-stage driving gear (9) and the second-stage driving gear (10) are fixedly sleeved on the input shaft (15) side by side, the first-stage transition gear (13) and the second-stage, the first-stage driven gear (11) and the second-stage driven gear (12) are fixedly sleeved on the output shaft (16) side by side, and the box body (7) is fixedly installed on the second base truss (6).
3. The manual-automatic integrated movable top cover for the exhaust tower of the test run platform of the ultra-high power gas turbine as claimed in claim 2, wherein: each transition transmission assembly further comprises a platform (17) and a ladder (18), wherein the platform (17) is horizontally arranged at the top of the second base truss (6), the ladder (18) is vertically arranged, and the upper end of the ladder (18) is fixedly connected with the outer edge of the platform (17).
4. The manual-automatic integrated movable top cover for the exhaust tower of the test run platform of the ultra-high power gas turbine as claimed in claim 1, wherein: every drive supporting component includes third base truss (19), axle bed (20), gear shaft (21), gear (22) and rack (23), and axle bed (20) horizontal installation is passed through in gear shaft (21) in the upper end of third base truss (19), and the one end and the second transmission shaft (5) of gear shaft (21) are connected, and the fixed suit of gear (22) is on gear shaft (21), and rack (23) fixed mounting is in top cap component's lower surface, gear (22) and rack (23) meshing.
5. The manual-automatic integrated movable top cover for the exhaust tower of the test run platform of the ultra-high power gas turbine as claimed in claim 1 or 4, wherein: every the roof subassembly includes two panels (24), two supports (25) and two main trusses (26), and two main trusses (26) are the setting of style of calligraphy, and two panels (24) set up respectively on two main trusses (26), and the lower surface of every panel (24) respectively is connected through the upper surface fixed of a support (25) and a corresponding main truss (26) respectively, and rack (23) are connected with the lower surface fixed of main truss (26).
6. The manual-automatic integrated movable top cover for the exhaust tower of the test run platform of the ultra-high power gas turbine as claimed in claim 1 or 4, wherein: each translation supporting assembly comprises an axle (27), a supporting wheel (28), a wheel seat (29), a fourth base truss (30) and a track (31), the track (31) is fixedly installed on the upper surface of the fourth base truss (30), the wheel seat (29) is fixedly installed on the lower surface of the outer end of the main truss (26), the supporting wheel (28) is installed on the wheel seat (29) through the axle (27), and the supporting wheel (28) is in rolling connection with the track (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471108.1A CN110159047B (en) | 2019-05-31 | 2019-05-31 | Manual-automatic integrated movable top cover for exhaust tower of test operation platform of ultra-high-power gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471108.1A CN110159047B (en) | 2019-05-31 | 2019-05-31 | Manual-automatic integrated movable top cover for exhaust tower of test operation platform of ultra-high-power gas turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159047A CN110159047A (en) | 2019-08-23 |
| CN110159047B true CN110159047B (en) | 2020-10-13 |
Family
ID=67630962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910471108.1A Active CN110159047B (en) | 2019-05-31 | 2019-05-31 | Manual-automatic integrated movable top cover for exhaust tower of test operation platform of ultra-high-power gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159047B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457255Y (en) * | 2000-12-28 | 2001-10-31 | 上海交通大学 | Movable driver capable of changing roof arch structure |
| CN2760141Y (en) * | 2004-12-31 | 2006-02-22 | 重庆美心(集团)有限公司 | A moveable retiform ceiling plate |
| KR100905319B1 (en) * | 2008-08-11 | 2009-07-02 | 주식회사 동아스트 | Open and closing device of roof |
| CN204781532U (en) * | 2015-07-14 | 2015-11-18 | 河南卫华重型机械股份有限公司 | Movable steel construction roof |
| CN206467865U (en) * | 2016-12-29 | 2017-09-05 | 中国核工业二三建设有限公司 | Nuclear power plant reactor construction of hydropower top cover |
| CN107558647A (en) * | 2017-07-31 | 2018-01-09 | 同济大学 | Parallel-moving type roof electromechanical driving system |
| CN107916817A (en) * | 2017-11-16 | 2018-04-17 | 黑龙江省机械科学研究院 | A kind of exhaust tower electric translation head cover |
| CN108775166A (en) * | 2018-07-30 | 2018-11-09 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of constructing device and construction method of the openable mobile awning of roof system |
-
2019
- 2019-05-31 CN CN201910471108.1A patent/CN110159047B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457255Y (en) * | 2000-12-28 | 2001-10-31 | 上海交通大学 | Movable driver capable of changing roof arch structure |
| CN2760141Y (en) * | 2004-12-31 | 2006-02-22 | 重庆美心(集团)有限公司 | A moveable retiform ceiling plate |
| KR100905319B1 (en) * | 2008-08-11 | 2009-07-02 | 주식회사 동아스트 | Open and closing device of roof |
| CN204781532U (en) * | 2015-07-14 | 2015-11-18 | 河南卫华重型机械股份有限公司 | Movable steel construction roof |
| CN206467865U (en) * | 2016-12-29 | 2017-09-05 | 中国核工业二三建设有限公司 | Nuclear power plant reactor construction of hydropower top cover |
| CN107558647A (en) * | 2017-07-31 | 2018-01-09 | 同济大学 | Parallel-moving type roof electromechanical driving system |
| CN107916817A (en) * | 2017-11-16 | 2018-04-17 | 黑龙江省机械科学研究院 | A kind of exhaust tower electric translation head cover |
| CN108775166A (en) * | 2018-07-30 | 2018-11-09 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of constructing device and construction method of the openable mobile awning of roof system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110159047A (en) | 2019-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107234932A (en) | A kind of rail convertible car base apparatus | |
| CN101626211A (en) | Single tooth-shaped band driving group synchronous tracking sunlight automatic tracking device based on running track from sun to earth | |
| CN205754163U (en) | The steering mechanism of solar panel | |
| CN201608664U (en) | Double-shaft sun tracker | |
| CN110159047B (en) | Manual-automatic integrated movable top cover for exhaust tower of test operation platform of ultra-high-power gas turbine | |
| CN201756435U (en) | Mass screw rod type lifting platform | |
| CN101582660A (en) | Straight rack driving group synchronous tracking sunlight automatically tracking device based on trajectory of the earth and the sun | |
| CN109979215A (en) | A kind of stable silent cop | |
| CN101582662A (en) | Link driving group synchronous tracking sunlight automatically tracking device based on trajectory of the earth and the sun | |
| CN207090810U (en) | A kind of small curvature radius of turn dolly | |
| CN202643228U (en) | Lifting device | |
| CN101582661B (en) | Cog belt driving group synchronous tracking sunlight automatically tracking device based on trajectory of the earth and the sun | |
| CN101818535B (en) | Movable roof driving trolley | |
| CN106670786A (en) | Automatic position shifting electric tightening device | |
| CN101626210A (en) | Single-chain driving group synchronous tracking sunlight automatic tracking device based on running track from sun to earth | |
| CN2804279Y (en) | Lifting arrangment of multi-layer garage | |
| CN2761790Y (en) | Electric theramenes louding and driving mechanism of bus | |
| CN212436615U (en) | Bilateral window-turning type top ventilation device of circular arch greenhouse | |
| CN210196385U (en) | Double-eccentric-disc crankshaft driving device | |
| CN220145935U (en) | Driving mechanism of track robot | |
| CN205296935U (en) | Stereo garage double track running gear | |
| CN201713974U (en) | Movable roof driving carriage | |
| CN110409685A (en) | A kind of solar carport that the water-resistant performance with snow removal function is good | |
| CN111587718A (en) | Bilateral window-turning type top ventilation device of circular arch greenhouse | |
| CN2325307Y (en) | Pontoon frame for container ship dockyard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |