CN214247582U - Lightning protection device for wind generating set - Google Patents
Lightning protection device for wind generating set Download PDFInfo
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- CN214247582U CN214247582U CN202120056660.7U CN202120056660U CN214247582U CN 214247582 U CN214247582 U CN 214247582U CN 202120056660 U CN202120056660 U CN 202120056660U CN 214247582 U CN214247582 U CN 214247582U
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- fixedly connected
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- lightning
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- 238000009434 installation Methods 0.000 claims description 9
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000010248 power generation Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model belongs to the technical field of wind power generation, in particular to a lightning protection device of a wind generating set, which comprises a remote controller, an accommodating box, a first clamping, a second clamping, a signal receiver, a first rotating roller and a second rotating roller; an operator unscrews the fixing piece, then places first clamping and second clamping in aerogenerator's the support column outside, rotatory fixing piece is fixed first clamping and second clamping, through remote controller transmission signal to signal receiver, it is rotatory that the motor starts to drive the worm, the worm is rotatory to drive the worm wheel, the worm wheel is rotatory to drive the connecting rod rotatory, the connecting rod is rotatory to drive the second live-rollers rotatory, the second live-rollers is rotatory to drive first clamping and second clamping and rise in the support column outside, the second clamping rises in the support column outside and drives first live-rollers and rotate, close the motor when first clamping and second clamping remove enough height, because worm wheel and worm meshing produce the auto-lock, conveniently fix the device in the support column outside.
Description
Technical Field
The utility model belongs to the technical field of wind power generation, concretely relates to wind generating set lightning protection device.
Background
Along with the continuous development of wind power generation technology, aerogenerator's mounted position is also higher and higher, needs to install lightning protection device protection aerogenerator, and traditional aerogenerator group lightning protection device installs the difficulty, and traditional aerogenerator group lightning protection device is lack fixedly at the installation back wire for the wire receives external force influence easily and conducts electric power to danger area, causes the potential safety hazard easily.
The prior art has the following problems:
1. with the continuous development of wind power generation technology, the installation position of a wind driven generator is higher and higher, a lightning protection device needs to be installed to protect the wind driven generator, and the traditional lightning protection device of the wind driven generator set is difficult to install;
2. traditional wind generating set lightning protection device is lack of fixedly at the installation back wire for the wire receives external force influence easily and conducts electric power to danger area, causes the potential safety hazard easily.
In order to solve the problem, the application provides a lightning protection device for a wind generating set.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a wind generating set lightning protection device has convenient installation in the aerogenerator outside, and conveniently carries out spacing characteristics with the position of wire.
In order to achieve the above object, the utility model provides a following technical scheme: a lightning protection device for a wind generating set comprises a remote controller, a storage box, a first clamp, a second clamp, a signal receiver, a first rotating roller and a second rotating roller, wherein the storage box is rotatably connected with a rotating rod in an inner side, the rotating rod is fixedly connected with a driving lever in an outer side, the storage box is slidably connected with a top rod in an inner side of a bottom end face of the storage box, the top rod is fixedly connected with an installation block in an outer side, the top rod is slidably connected with a thrust spring in an outer side, a limiting block is fixedly connected with the bottom end of the top rod, a wire is fixedly connected with the outer side of the rotating rod, lightning rods are fixedly connected with the top end of the wire, the number of the lightning rods is two, the lightning rod outer side on the right side is fixedly connected with the first clamp, the lightning rod outer side on the left side is fixedly connected with the second clamp, the lightning rod on the right side penetrates through the first clamp, and the lightning rod on the left side penetrates through the second clamp, the rear part of the left end surface of the first clamp is rotationally connected with the second clamp through a rotating shaft, the inner side of the second clamp is rotationally connected with a first rotating roller through the rotating shaft, the inner side of the first clamp is rotationally connected with a second rotating roller through a rotating shaft, the rear end of the second rotating roller is fixedly connected with a connecting rod, a worm wheel is fixedly connected at the rear end of the connecting rod, a worm is meshed at the top end of the worm wheel, the left end of the worm is fixedly connected with the tail end of a motor spindle, the bottom end of the motor is fixedly connected with the first clamp, the top end of the first clamp is fixedly connected with the signal receiver, the outer side of the second clamp is fixedly connected with a storage battery, the inner side in front of the right end face of the second clamp is connected with a fixing piece in a sliding way, the mounting outside with first clamping sliding connection, dwang outside fixedly connected with spiral spring, the spiral spring other end with containing box fixed connection.
As the utility model relates to a wind generating set lightning protection device is preferred, the hole of inserting ground has been seted up to containing box bottom end face inboard, the downthehole side of inserting ground of containing box is equipped with the ground connection stake, ground connection stake top terminal surface inboard through the bearing with the dwang rotates to be connected.
As the utility model relates to a wind generating set lightning protection device is preferred, the spacing groove has been seted up to containing box bottom end face inboard, the spacing inslot side of containing box with stopper sliding connection, the slide opening has been seted up to containing box bottom end face inboard, the slide opening inboard of containing box with ejector pin sliding connection, the spacing groove of containing box with the slide opening of containing box is linked together, the ejector pin is square strip setting and the ejector pin top is the slope form setting, driving lever one end is the slope form setting.
As the utility model relates to a wind generating set lightning protection device is preferred, and the guiding groove has been seted up to containing box top end face inboard, the guiding groove inboard of containing box with wire sliding connection.
As the utility model relates to a wind generating set lightning protection device is preferred, the thrust spring top with installation piece fixed connection, the thrust spring bottom with containing box fixed connection.
As the utility model relates to a wind generating set lightning protection device is preferred, the spread groove has been seted up to first clamping inboard, the spread groove of first clamping inboard with the connecting rod rotates to be connected.
The utility model relates to a wind generating set lightning protection device is preferred, the driving lever group number is two sets of, and is two sets of the driving lever is bilateral symmetry and sets up the dwang outside, every group the driving lever obtains quantity to be four, four the driving lever is the annular arrangement and sets up the dwang outside, the movement track of driving lever is cyclic annular setting, the ejector pin sets up on the movement track of driving lever.
Compared with the prior art, the beneficial effects of the utility model are that:
1. an operator unscrews the fixing piece, then places first clamping and second clamping in aerogenerator's the support column outside, rotatory fixing piece is fixed first clamping and second clamping, through remote controller transmission signal to signal receiver, it is rotatory that the motor starts to drive the worm, the worm is rotatory to drive the worm wheel, the worm wheel is rotatory to drive the connecting rod rotatory, the connecting rod is rotatory to drive the second live-rollers rotatory, the second live-rollers is rotatory to drive first clamping and second clamping and rise in the support column outside, the second clamping rises in the support column outside and drives first live-rollers and rotate, close the motor when first clamping and second clamping remove enough height, because worm wheel and worm meshing produce the auto-lock, conveniently fix the device in the support column outside.
2. When the wires do not extend any more, the containing box is moved away from the wind driven generator, the wires extend out of the containing box to drive the rotating rod to rotate, the rotating rod rotates to drive the shifting rod to rotate, the shifting rod rotates to extrude the ejector rod, the ejector rod is prevented from being separated from the containing box in the process of moving up and down through the arranged limiting block, the ejector rod returns to the original position under the thrust action of the thrust spring, the rotating rod rotates to drive the volute spiral spring to contract, when the containing box moves to a safe distance, the grounding pile is inserted into the ground, the rotating rod is driven to rotate reversely under the tensile force of the volute spiral spring, the shifting rod is driven to abut against the ejector rod by the reverse rotation of the rotating rod, the position of the rotating rod is locked, the residual wires are convenient to contain, the lightning rod guides the lightning to the grounding pile to the ground through the wires, the wires are prevented from being influenced by external force and swinging, and the lightning guiding effect of the lightning rod is influenced, thereby eliminating the potential safety hazard brought by the lead.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of a worm mounting structure in the present invention;
fig. 3 is a schematic view of the installation structure of the grounding pile of the present invention;
FIG. 4 is a schematic view of the structure of the ejector pin of the present invention;
in the figure: 1. a remote controller; 2. a storage box; 3. rotating the rod; 4. a deflector rod; 5. a top rod; 6. mounting blocks; 7. a limiting block; 8. a thrust spring; 9. a wire; 10. a first card holder; 11. a second card holder; 12. a storage battery; 13. a lightning rod; 14. a signal receiver; 15. a fixing member; 16. a first rotating roller; 17. a second rotating roller; 18. a connecting rod; 19. a worm gear; 20. a worm; 21. a motor; 22. grounding piles; 23. a spiral spring.
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.
Example 1
Referring to fig. 1-4, the present invention provides a technical solution: a lightning protection device for a wind generating set comprises a remote controller 1, a containing box 2, a first clamp 10, a second clamp 11, a signal receiver 14, a first rotating roller 16 and a second rotating roller 17, wherein the inner side of the containing box 2 is rotatably connected with a rotating rod 3, the outer side of the rotating rod 3 is fixedly connected with a deflector rod 4, the inner side of the bottom end surface of the containing box 2 is slidably connected with a push rod 5, the outer side of the push rod 5 is fixedly connected with an installation block 6, the outer side of the push rod 5 is slidably connected with a thrust spring 8, the bottom end of the push rod 5 is fixedly connected with a limiting block 7, the outer side of the rotating rod 3 is fixedly connected with a lead 9, the top end of the lead 9 is fixedly connected with a lightning rod 13, the number of the lightning rods 13 is two, the outer side of the lightning rod 13 on the right side is fixedly connected with the first clamp 10, the outer side of the lightning rod 13 on the left side is fixedly connected with the second clamp 11, and the lightning rod 13 on the right side penetrates through the first clamp 10, the lightning rod 13 positioned on the left side penetrates through the second clamp 11, the rear part of the left end face of the first clamp 10 is rotationally connected with the second clamp 11 through a rotating shaft, the inner side of the second clamp 11 is rotationally connected with a first rotating roller 16 through a rotating shaft, the inner side of the first clamp 10 is rotationally connected with a second rotating roller 17 through a rotating shaft, the rear end of the second rotating roller 17 is fixedly connected with a connecting rod 18, the rear end of the connecting rod 18 is fixedly connected with a worm wheel 19, the top end of the worm wheel 19 is meshed with a worm 20, the left end of the worm 20 is fixedly connected with the tail end of a main shaft of a motor 21, the bottom end of the motor 21 is fixedly connected with the first clamp 10, the top end of the first clamp 10 is fixedly connected with a signal receiver 14, the outer side of the second clamp 11 is fixedly connected with a storage battery 12, the inner side of the front part of the right end face of the second clamp 11 is slidably connected with a fixing part 15, the outer side of the fixing part 15 is slidably connected with the first clamp 10, and the outer side of the rotating rod 3 is fixedly connected with a volute spring 23, the other end of the spiral spring 23 is fixedly connected with the containing box 2.
In this embodiment: fixing the first clamp 10 and the second clamp 11 outside the support pillar of the wind power generator by using a fixing part 15, transmitting a signal to a signal receiver 14 through a remote controller 1, starting a motor 21 to drive a second rotating roller 17 to rotate, so that the first clamp 10 and the second clamp 11 rise outside the support pillar, generating self-locking due to the engagement of a worm wheel 19 and a worm 20, conveniently fixing the device outside the support pillar, moving the containing box 2 away from the wind power generator, rotating the rotating rod 3 to drive a volute spring 23 to contract, inserting a grounding pile 22 into the ground when the containing box 2 moves to a safe distance, driving the rotating rod 3 to rotate reversely under the pulling force of the volute spring 23, driving a deflector rod 4 to abut against a mandril 5 by the reverse rotation of the rotating rod 3, locking the position of the rotating rod 3, conveniently accommodating the residual conducting wire 9, leading the lightning to the grounding pile 22 into the ground by a lightning rod 13 through the conducting wire 9, the lead 9 is prevented from floating under the influence of external force, and the lightning guiding effect of the lightning rod 13 is prevented from being influenced.
In an alternative embodiment, the inner side of the bottom end face of the storage box 2 is provided with a ground insertion hole, the inner side of the ground insertion hole of the storage box 2 is provided with a ground pile 22, and the inner side of the top end face of the ground pile 22 is rotatably connected with the rotating rod 3 through a bearing.
In this embodiment: through this design, conveniently insert ground connection stake 22 ground to the convenience is to the fixed of containing box 2, and makes things convenient for ground connection stake 22 with the leading-in ground of electric current.
In an optional embodiment, a limiting groove is formed in the inner side of the bottom end face of the storage box 2, the inner side of the limiting groove of the storage box 2 is slidably connected with the limiting block 7, a sliding hole is formed in the inner side of the bottom end face of the storage box 2, the inner side of the sliding hole of the storage box 2 is slidably connected with the ejector rod 5, the limiting groove of the storage box 2 is communicated with the sliding hole of the storage box 2, the ejector rod 5 is arranged in a square strip shape, the top end of the ejector rod 5 is arranged in an inclined shape, and one end of the shift.
In this embodiment: through the design, the shifting lever 4 can only rotate in a single direction, and when the shifting lever 4 rotates reversely, the shifting lever 4 abuts against the outer side of the ejector rod 5 to form a locking structure, so that the wire 9 is conveniently straightened.
In an alternative embodiment, the top end face of the containing box 2 is provided with a guiding groove, and the inner side of the guiding groove of the containing box 2 is connected with the conducting wire 9 in a sliding way.
In this embodiment: through this design, prevent that wire 9 from twining when launching in containing box 2, make things convenient for wire 9's normal launching.
In an alternative embodiment, the top end of the thrust spring 8 is fixedly connected with the mounting block 6, and the bottom end of the thrust spring 8 is fixedly connected with the containing box 2.
In this embodiment: through this design, make things convenient for the restoration after ejector pin 5 is extrudeed downwards by driving lever 4 to driving lever 4 supports and forms the dead lock structure in the ejector pin 5 outside when making dwang 3 counter-rotation.
In an alternative embodiment, the first clip 10 has a connecting slot formed on an inner side thereof, and the connecting slot of the first clip 10 is rotatably connected to the connecting rod 18 on the inner side thereof.
In this embodiment: with this design, the connecting rod 18 facilitates the transmission of the power of the motor 21 from the worm wheel 19 to the second rotating roller 17, thereby facilitating the lifting of the first and second clips 10 and 11 outside the support column.
In an alternative embodiment, there are two groups of shift levers 4, two groups of shift levers 4 are symmetrically disposed on the outer side of rotating rod 3, each group of shift levers 4 is four, four shift levers 4 are annularly disposed on the outer side of rotating rod 3, the movement track of shift levers 4 is annularly disposed, and push rods 5 are disposed on the movement track of shift levers 4.
In this embodiment: through this design for the rotation cycle of dwang 3 divide into four, conveniently straightens the fixed of wire 9.
The utility model discloses a theory of operation and use flow: the device uses the storage battery 12 to supply power to the motor 21, when the device is used, an operator unscrews the fixing piece 15, then places the first clamp 10 and the second clamp 11 outside a support column of the wind driven generator, the first clamp 10 and the second clamp 11 are fixed by rotating the fixing piece 15, a signal is transmitted to the signal receiver 14 through the remote controller 1, the motor 21 is started to drive the worm 20 to rotate, the worm 20 rotates to drive the worm wheel 19 to rotate, the worm wheel 19 rotates to drive the connecting rod 18 to rotate, the connecting rod 18 rotates to drive the second rotating roller 17 to rotate, the second rotating roller 17 rotates to drive the first clamp 10 and the second clamp 11 to ascend outside the support column, the second clamp 11 ascends outside the support column to drive the first rotating roller 16 to rotate, when the first clamp 10 and the second clamp 11 move to a sufficient height, the motor 21 is closed, and self-locking is generated due to the meshing of the worm wheel 19 and the worm 20, the device is conveniently fixed on the outer side of the supporting column, when the lead 9 does not extend any more, the containing box 2 is moved to be far away from the wind driven generator, the lead 9 extends out of the containing box 2 to drive the rotating rod 3 to rotate, the rotating rod 3 rotates to drive the shifting rod 4 to rotate, the shifting rod 4 rotates to extrude the ejector rod 5, the limiting block 7 is arranged to prevent the ejector rod 5 from separating from the containing box 2 in the process of moving up and down, the ejector rod 5 returns to the original position under the thrust action of the thrust spring 8, the rotating rod 3 rotates to drive the volute spiral spring 23 to contract, when the containing box 2 moves to a safe distance, the grounding pile 22 is inserted into the ground, the rotating rod 3 is driven to rotate reversely under the tensile force of the volute spiral spring 23, the rotating rod 3 rotates reversely to drive the shifting rod 4 to abut against the ejector rod 5, so that the position of the rotating rod 3 is locked, and the remaining lead 9 is convenient to be contained, the lightning rod 13 leads the lightning to the grounding pile 22 through the lead 9 and leads the lightning to the ground, thereby preventing the lead 9 from drifting under the influence of external force and influencing the lightning leading effect of the lightning rod 13.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a wind generating set lightning protection device which characterized in that: comprises a remote controller (1), a containing box (2), a first clamping (10), a second clamping (11), a signal receiver (14), a first rotating roller (16) and a second rotating roller (17), wherein the containing box (2) is connected with a rotating rod (3) in an inner side rotating way, a deflector rod (4) is fixedly connected with the outer side of the rotating rod (3), a top rod (5) is connected with the inner side of the bottom end surface of the containing box (2) in a sliding way, an installation block (6) is fixedly connected with the outer side of the top rod (5), a thrust spring (8) is connected with the outer side of the top rod (5) in a sliding way, a limiting block (7) is fixedly connected with the bottom end of the top rod (5), a lead (9) is fixedly connected with the outer side of the rotating rod (3), lightning rods (13) are fixedly connected with the top end of the lead (9), the number of the lightning rods (13) is two, and the lightning rods (13) on the right side is fixedly connected with the first clamping (10), be located the left lightning rod (13) the outside with second clamping (11) fixed connection is located the right side lightning rod (13) run through first clamping (10) are located the left lightning rod (13) run through second clamping (11), first clamping (10) left end face rear through the pivot with second clamping (11) rotate to be connected, second clamping (11) inboard is connected with first live-rollers (16) through the pivot rotation, first clamping (10) inboard is connected with second live-rollers (17) through the pivot rotation, second live-rollers (17) rear end fixedly connected with connecting rod (18), connecting rod (18) rear end fixedly connected with worm wheel (19), worm wheel (19) top meshing has worm (20), worm (20) left end fixedly connected with motor (21) main shaft is terminal, motor (21) bottom with first clamping (10) fixed connection, first clamping (10) top with signal receiver (14) fixed connection, second clamping (11) outside fixedly connected with battery (12), second clamping (11) right-hand member face front inboard sliding connection has mounting (15), the mounting (15) outside with first clamping (10) sliding connection, dwang (3) outside fixedly connected with volute spiral spring (23), volute spiral spring (23) the other end with containing box (2) fixed connection.
2. The lightning protection device of a wind generating set according to claim 1, characterized in that: the ground inserting hole is formed in the inner side of the bottom end face of the storage box (2), a ground pile (22) is arranged on the inner side of the ground inserting hole of the storage box (2), and the inner side of the top end face of the ground pile (22) is rotatably connected with the rotating rod (3) through a bearing.
3. The lightning protection device of a wind generating set according to claim 1, characterized in that: the limiting groove is formed in the inner side of the bottom end face of the containing box (2), the limiting groove of the containing box (2) is connected with the limiting block (7) in a sliding mode, a sliding hole is formed in the inner side of the bottom end face of the containing box (2), the sliding hole of the containing box (2) is connected with the ejector rod (5) in a sliding mode, the limiting groove of the containing box (2) is communicated with the sliding hole of the containing box (2), the ejector rod (5) is arranged in a square strip mode, the top end of the ejector rod (5) is arranged in an inclined mode, and one end of the driving lever (4) is arranged in an inclined mode.
4. The lightning protection device of a wind generating set according to claim 1, characterized in that: the inner side of the top end face of the containing box (2) is provided with a guide groove, and the inner side of the guide groove of the containing box (2) is connected with the lead (9) in a sliding manner.
5. The lightning protection device of a wind generating set according to claim 1, characterized in that: the top end of the thrust spring (8) is fixedly connected with the mounting block (6), and the bottom end of the thrust spring (8) is fixedly connected with the containing box (2).
6. The lightning protection device of a wind generating set according to claim 1, characterized in that: the inner side of the first clamping clip (10) is provided with a connecting groove, and the inner side of the connecting groove of the first clamping clip (10) is rotatably connected with the connecting rod (18).
7. The lightning protection device of a wind generating set according to claim 1, characterized in that: the number of the groups of the shift levers (4) is two, and the shift levers (4) are arranged in a bilateral symmetry mode and are arranged on the outer side of the rotating rod (3), each group of the shift levers (4) is provided with four shift levers (4) in number and four shift levers (4) are arranged in an annular mode and are arranged on the outer side of the rotating rod (3), the motion track of the shift levers (4) is in an annular mode, and the ejector rods (5) are arranged on the motion track of the shift levers (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120056660.7U CN214247582U (en) | 2021-01-08 | 2021-01-08 | Lightning protection device for wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120056660.7U CN214247582U (en) | 2021-01-08 | 2021-01-08 | Lightning protection device for wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214247582U true CN214247582U (en) | 2021-09-21 |
Family
ID=77724924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120056660.7U Expired - Fee Related CN214247582U (en) | 2021-01-08 | 2021-01-08 | Lightning protection device for wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214247582U (en) |
-
2021
- 2021-01-08 CN CN202120056660.7U patent/CN214247582U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |