CN212085661U - Many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device - Google Patents
Many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device Download PDFInfo
- Publication number
- CN212085661U CN212085661U CN202020885984.7U CN202020885984U CN212085661U CN 212085661 U CN212085661 U CN 212085661U CN 202020885984 U CN202020885984 U CN 202020885984U CN 212085661 U CN212085661 U CN 212085661U
- Authority
- CN
- China
- Prior art keywords
- aerial vehicle
- unmanned aerial
- mode
- nest
- pulley
- 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
- Electric Cable Installation (AREA)
Abstract
The utility model provides a many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device belongs to unmanned aerial vehicle application technical field to when solving current distribution lines nest of cleaing away, direct use order gram stick is usually clear away, comparatively waste time when cleaing away, and has branch, iron wire etc. in the nest, difficult clearance when cleaing away, and there is the problem that causes exposed short circuit such as switch pile head, line connection danger, including the unmanned aerial vehicle body, the unmanned aerial vehicle body is built-in unmanned aerial vehicle control system's many rotor unmanned aerial vehicle, and the top is equipped with the camera. The utility model discloses in because the sleeve pipe leads to the chamber structure for four cylindricality, its leads to intracavity portion and all installs the cylindricality magnetic stripe through the mode of embedding, when the nest excision, the cylindricality magnetic stripe can adsorb ironwork such as the iron wire that drops out, effectively prevents the danger of taking place the short circuit.
Description
Technical Field
The utility model belongs to the technical field of unmanned aerial vehicle uses, more specifically says, in particular to many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device.
Background
In recent years, due to environmental improvement and protection of wild animals, birds multiply rapidly, and various birds are increased in cities. Along with coming of spring, the phenomenon that birds nest on power supply equipment such as pole cross arms, isolating switches, hard cross beams, steel columns and wrist arm bases begins to frequently occur. In bad weather such as wind and rain, the bird nest caused by the weeds and the branches can cause accidents after the branches and the weeds are wetted by rain or water vapor and contact with the wires, so that the lines are tripped, even the line breaking accidents can be caused, and the safe operation of the power grid equipment is seriously threatened. Therefore, in order to ensure the safe operation of the power grid, the bird nest on the line equipment needs to be removed in time.
As in application No.: CN201821343003.5 the utility model provides a many rotors unmanned aerial vehicle line tower nest excision device belongs to unmanned aerial vehicle's application technical field. The device comprises a multi-rotor unmanned aerial vehicle with a built-in unmanned aerial vehicle control system, a bird nest picking device and a ground control system; the bird nest picking device comprises a positioning piece, a rubber band, a steering engine, a connecting rope, a sleeve, a rotating shaft and a stirring rod; the steering engine is controlled by a steering engine controller to operate, and the stirring rod is driven to rotate by a rubber band, a rotating shaft and a stirring rod bracket; the ground control system comprises an unmanned aerial vehicle remote control unit and a steering engine remote control unit, the unmanned aerial vehicle remote control unit is connected with the unmanned aerial vehicle control system through a wireless communication unit, and the steering engine remote control unit is connected with a steering engine controller through a wireless communication unit. The device adopts the elasticity of rubber ring to circle round for power drive stirring rod to stir the nest and scatter, its power of stirring and scattering does not need the external energy, and is safe in utilization, clears away the nest effectual.
Based on the retrieval of above-mentioned patent to and combine the equipment discovery among the prior art, when current clearing away the distribution lines nest, directly use the order gram stick to clear away usually, comparatively waste time when clearing away, and have article such as branch, iron wire in the nest, difficult clearance when clearing away, and the existence causes switch pile head, circuit to connect bare department short circuit danger such as.
Therefore, in view of the above, research and improvement are performed on the existing structure and defects, and a bird's nest removing device for a distribution line pole tower of a multi-rotor unmanned aerial vehicle is provided, so as to achieve the purpose of higher practical value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device to when solving current distribution lines nest of cleaing away, directly use the order gram stick to clear away usually, comparatively waste time when cleaing away, and have branch, objects such as iron wire in the nest, be difficult for clearing up when cleaing away, and there is the dangerous problem of exposed short circuit such as causing switch pile head, line connection.
The utility model discloses many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device's purpose and efficiency are reached by following concrete technological means:
a multi-rotor unmanned aerial vehicle distribution line pole tower nest clearing device comprises an unmanned aerial vehicle body, wherein the unmanned aerial vehicle body is a multi-rotor unmanned aerial vehicle with an unmanned aerial vehicle control system arranged inside, and a camera is arranged at the top end of the unmanned aerial vehicle body; the unmanned aerial vehicle body is provided with a ground control system and an image receiving device; the bottom end of the unmanned aerial vehicle body is provided with a control box in a screw fixing mode; the control box is of a cuboid cavity structure, a rotating motor is arranged at the front end inside the cavity, and the rotating motor is fixedly connected with the control box in a screw mode; the front end of the control box is provided with an order gram rod in a threaded mode; the insulation displacement rod is of a cylinder structure, a fixing ring is arranged at the front end of the insulation displacement rod in a bonding fixing mode, the fixing ring is of an annular through cavity structure, and a vibration device is arranged in the through cavity; the peripheral surface of the fixing ring is provided with a clamping mechanism; the end part of the clamping mechanism is provided with a locking component; the control box is connected with the clamping mechanism through a connecting mechanism.
Further, vibrator includes shock dynamo and vibrations pole, shock dynamo installs at solid fixed ring logical intracavity through the fixed mode of bonding, and the vibrations pole is installed through the threaded mode to the shock dynamo front end, the vibrations pole is the ceramic rod of cylindricality structure.
Further, press from both sides and get mechanism and include fixed clamping bar, activity clamping bar, extension spring and connection pivot, fixed clamping bar is two, and it is fixed at solid fixed ring outer peripheral face through the adhesive mode respectively, and is bilateral symmetry mode and distributes, fixed clamping bar tip all is connected through connecting pivot and activity clamping bar rotation, extension spring is two, all establishes in fixed clamping bar and activity clamping bar contained angle department position.
Further, coupling mechanism includes motor shaft, first pulley, second pulley, spliced pole and connects the rope, motor shaft rotates with the rotation motor to be connected, first pulley setting is in solid fixed ring outer peripheral face bottom, and first pulley rotates through pivot and solid fixed ring and links, the second pulley is two, sets up respectively in two and connects the pivot bottom, the spliced pole is two, fixes respectively at the activity clamping bar outer peripheral face, and is the mode distribution of symmetry, and two the spliced pole peripheral surface all twines and has connected the rope, and connects the rope and all walks around second pulley and first pulley, and these two are connected the rope end and all pass through winding mode and motor shaft fixed connection.
Further, the locking assembly comprises a sleeve and cylindrical magnetic strips, the sleeve is of a cylindrical cavity structure at four positions, the cylindrical magnetic strips are installed in the cavity in an embedded mode, every two sleeves are divided into a group, fixed on the outer peripheral surfaces of the two movable clamping rods in a bonding fixing mode respectively, and distributed in a symmetrical mode.
Compared with the prior art, the utility model discloses following beneficial effect has:
during the use, open and rotate the motor, through motor shaft backward pulling connection rope, through second pulley and first pulley, will with the fixed movable clamping bar front end of spliced pole, it is tensile to the left and right sides respectively, and control unmanned aerial vehicle and make movable clamping bar front end aim at the nest, close simultaneously and rotate the motor, because extension spring's elastic action, the state of drawing close in the middle of two movable clamping bar front ends resume, thereby the realization is got to the clamp of whole nest, it is more thorough to make the nest clear away, moreover, the steam generator is simple in structure, and convenient operation.
The vibrating device is arranged in the through cavity of the fixing ring, provides power for the vibrating motor, and continuously knocks the bird nest through the vibrating rod, so that the bird nest is loose and is convenient to remove.
The sleeve pipe leads to the chamber structure for the cylindricality of four places, and its leads to intracavity portion and all installs the cylindricality magnetic stripe through the mode of embedding, and when the nest excision, the cylindricality magnetic stripe can adsorb ironwork such as the iron wire that drops out, effectively prevents to take place the danger of short circuit.
Drawings
Fig. 1 is a schematic axial view of the present invention.
Fig. 2 is a schematic view of the structure of the rotating viewing angle of the present invention drawn from fig. 1.
Fig. 3 is a schematic structural view of the gripping mechanism and the object locking assembly of the present invention.
Fig. 4 is an enlarged schematic structural diagram of a portion a in fig. 2 according to the present invention.
Fig. 5 is a schematic view of the connection mechanism of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. an unmanned aerial vehicle body; 2. a link bar; 3. a fixing ring; 4. a vibration device; 401. vibrating a motor; 402. A vibration rod; 5. a control box; 6. a camera; 7. a gripping mechanism; 701. fixing the clamping rod; 702. a movable clamping rod; 703. an extension spring; 704. connecting the rotating shaft; 8. a connecting mechanism; 801. a motor shaft; 802. A first pulley; 803. a second pulley; 804. connecting columns; 805. connecting ropes; 9. a locking assembly; 901. A sleeve; 902. a columnar magnetic stripe; 10. the motor is rotated.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 5:
the utility model provides a multi-rotor unmanned aerial vehicle distribution lines pole tower nest clearing device, including unmanned aerial vehicle body 1, unmanned aerial vehicle body 1 is multi-rotor unmanned aerial vehicle with built-in unmanned aerial vehicle control system, and the top is equipped with camera 6; the unmanned aerial vehicle body 1 is provided with a ground control system and an image receiving device; the bottom end of the unmanned aerial vehicle body 1 is provided with a control box 5 in a screw fixing mode; the control box 5 is of a cuboid cavity structure, the front end inside the cavity is provided with a rotating motor 10, and the rotating motor 10 is fixedly connected with the control box 5 in a screw mode; the front end of the control box 5 is provided with an order gram bar 2 in a threaded mode; the insulating rod 2 is of a cylinder structure, the front end of the insulating rod is provided with a fixing ring 3 in a bonding fixing mode, the fixing ring 3 is of an annular through cavity structure, a vibration device 4 is arranged in a through cavity of the insulating rod, and the vibration device 4 comprises a vibration motor 401 and a vibration rod 402; the clamping mechanism 7 is arranged on the outer peripheral surface of the fixing ring 3, and the clamping mechanism 7 comprises a fixing clamping rod 701, a movable clamping rod 702, an extension spring 703 and a connecting rotating shaft 704; the end part of the clamping mechanism 7 is provided with a locking assembly 9, and the locking assembly 9 comprises a sleeve 901 and a cylindrical magnetic strip 902; the control box 5 is connected with the gripping mechanism 7 through a connecting mechanism 8, and the connecting mechanism 8 comprises a motor rotating shaft 801, a first pulley 802, a second pulley 803, a connecting column 804 and a connecting rope 805.
Wherein, shock dynamo 401 installs at solid fixed ring 3 through-cavity through the fixed mode of bonding, and shock dynamo 401 front end installs shock bar 402 through the threaded mode, and shock bar 402 is the ceramic rod of cylindricality structure, and this device provides power for shock dynamo 401, constantly strikes the nest through shock bar 402, makes the nest not hard up, is convenient for remove.
Wherein, the fixed clamping bar 701 is provided with two positions, which are respectively fixed on the peripheral surface of the fixed ring 3 in an adhesion way and distributed in a bilateral symmetry way, the end parts of the fixed clamping bar 701 are respectively rotationally connected with the movable clamping bar 702 through the connecting rotating shaft 704, the two positions of the extension springs 703 are respectively arranged at the position of the included angle between the fixed clamping bar 701 and the movable clamping bar 702, the rotating shaft 801 of the motor is rotationally connected with the rotating motor 10, the first pulley 802 is arranged at the bottom end of the peripheral surface of the fixed ring 3, the first pulley 802 is rotationally connected with the fixed ring 3 through the rotating shaft, the second pulley 803 is provided with two positions, which are respectively arranged at the bottom end of the two connecting rotating shafts 704, the two connecting columns 804 are respectively fixed on the peripheral surface of the movable clamping bar 702 and distributed in a symmetry way, the peripheral surfaces of the two connecting columns 804 are respectively wound with the connecting ropes 805, the connecting ropes 805 are respectively wound around the second pulley 803 and the first pulley 802, the tail ends of the, during the use, open and rotate motor 10, connect rope 805 through the backward pulling of motor shaft 801, through second pulley 803 and first pulley 802, will with the fixed activity clamping bar 702 front end of spliced pole 804, it is tensile to the left and right sides respectively, and control unmanned aerial vehicle and make activity clamping bar 702 front end aim at the nest, close simultaneously and rotate motor 10, because extension spring 703's elastic action, the state of drawing close in the middle of two department activity clamping bar 702 front ends resume, thereby realize getting to whole nest's clamp, it is more thorough to make the nest clear away, and a structure is simple, and convenient for operation.
Wherein, sleeve pipe 901 is the cavity structure is led to the four places cylindricality, and cylindricality magnetic stripe 902 is all installed through the mode of embedding to its intracavity portion that leads to, and every two places sleeve pipe 901 falls into a set ofly, fixes at two movable clamping bar 702 outer peripheral faces through the fixed mode of bonding respectively, and is the symmetric mode and distributes, and when the nest excision, cylindricality magnetic stripe 902 can adsorb ironwork such as the iron wire that drops out, effectively prevents to take place the danger of short circuit.
The specific use mode and function of the embodiment are as follows:
in the utility model, when in use, the rotating motor 10 is started, the connecting rope 805 is pulled backwards through the motor rotating shaft 801, the front ends of the movable clamping rods 702 fixed with the connecting column 804 are respectively stretched towards the left side and the right side through the second pulley 803 and the first pulley 802, and the unmanned aerial vehicle is controlled to ensure that the front ends of the movable clamping rods 702 are aligned with the nest, and the rotating motor 10 is closed simultaneously, because of the elastic action of the stretching spring 703, the front ends of the two movable clamping rods 702 are restored to a middle closing state, thereby clamping the whole nest is realized, the nest is cleaned more thoroughly, the structure is simple, and the operation is convenient; in the process of picking off the bird nest, the vibration motor 401 is started, the vibration motor 401 is used for providing power, the bird nest is continuously knocked by the vibration rod 402, so that the bird nest is loosened, and the bird nest is convenient to pick off; when the nest was extirpated, ironwork such as the iron wire that the cylindricality magnetic stripe 902 can adsorb and drop out effectively prevented the danger of taking place the short circuit.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. The utility model provides a many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device which characterized in that: the unmanned aerial vehicle comprises an unmanned aerial vehicle body (1), wherein the unmanned aerial vehicle body (1) is a multi-rotor unmanned aerial vehicle with a built-in unmanned aerial vehicle control system, and the top end of the unmanned aerial vehicle body is provided with a camera (6); the unmanned aerial vehicle body (1) is provided with a ground control system and an image receiving device; the bottom end of the unmanned aerial vehicle body (1) is provided with a control box (5) in a screw fixing mode; the control box (5) is of a cuboid cavity structure, a rotating motor (10) is arranged at the front end inside the cavity, and the rotating motor (10) is fixedly connected with the control box (5) in a screw mode; the front end of the control box (5) is provided with an insulating rod (2) in a threaded manner; the insulation pull rod (2) is of a cylinder structure, the front end of the insulation pull rod is provided with a fixing ring (3) in a bonding fixing mode, the fixing ring (3) is of an annular through cavity structure, and a vibration device (4) is arranged in the through cavity; the outer peripheral surface of the fixing ring (3) is provided with a clamping mechanism (7); the end part of the clamping mechanism (7) is provided with a locking component (9); the control box (5) is connected with the clamping mechanism (7) through a connecting mechanism (8).
2. The multi-rotor unmanned aerial vehicle distribution line pole tower nest clearing device of claim 1, wherein: vibrator (4) include shock dynamo (401) and vibrations pole (402), shock dynamo (401) are installed at solid fixed ring (3) through the fixed mode of bonding and are led to the intracavity, and shock dynamo (401) front end installs vibrations pole (402) through the threaded mode, vibrations pole (402) are the ceramic rod of cylindricality structure.
3. The multi-rotor unmanned aerial vehicle distribution line pole tower nest clearing device of claim 1, wherein: press from both sides and get mechanism (7) including fixed clamping bar (701), activity clamping bar (702), extension spring (703) and connection pivot (704), fixed clamping bar (701) are two, and it is fixed at solid fixed ring (3) outer peripheral face through the mode of bonding respectively, and is bilateral symmetry mode distribution, fixed clamping bar (701) tip all rotates with activity clamping bar (702) through connecting pivot (704) and is connected, extension spring (703) are two, all establish fixed clamping bar (701) and activity clamping bar (702) contained angle department position.
4. The multi-rotor unmanned aerial vehicle distribution line pole tower nest clearing device of claim 1, wherein: the connecting mechanism (8) comprises a motor rotating shaft (801), a first pulley (802), a second pulley (803), a connecting column (804) and a connecting rope (805), the motor rotating shaft (801) is rotationally connected with the rotating motor (10), the first pulley (802) is arranged at the bottom end of the peripheral surface of the fixed ring (3), the first pulley (802) is rotationally connected with the fixed ring (3) through a rotating shaft, the second pulleys (803) are arranged at two positions and are respectively connected with the bottom end of the rotating shaft (704), the two connecting columns (804) are respectively fixed on the peripheral surface of the movable clamping rod (702), and are distributed in a symmetrical mode, the peripheral surfaces of the two connecting columns (804) are wound with connecting ropes (805), and the connecting rope (805) is wound around the second pulley (803) and the first pulley (802), the tail ends of the two connecting ropes (805) are fixedly connected with the motor rotating shaft (801) in a winding mode.
5. The multi-rotor unmanned aerial vehicle distribution line pole tower nest clearing device of claim 1, wherein: the object locking assembly (9) comprises a sleeve (901) and cylindrical magnetic strips (902), the sleeve (901) is of a cylindrical cavity structure at four positions, the cylindrical magnetic strips (902) are installed in the cavity of the sleeve in an embedded mode, every two positions of the sleeve (901) are divided into a group, and the sleeves are fixed on the outer peripheral surfaces of the two movable clamping rods (702) in a bonding fixing mode and are distributed in a symmetrical mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020885984.7U CN212085661U (en) | 2020-05-25 | 2020-05-25 | Many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020885984.7U CN212085661U (en) | 2020-05-25 | 2020-05-25 | Many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212085661U true CN212085661U (en) | 2020-12-04 |
Family
ID=73567367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020885984.7U Expired - Fee Related CN212085661U (en) | 2020-05-25 | 2020-05-25 | Many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212085661U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284934A (en) * | 2021-11-23 | 2022-04-05 | 国网浙江省电力有限公司宁波供电公司 | Electric power bird nest removing robot |
| CN115092386A (en) * | 2022-06-23 | 2022-09-23 | 国网江苏省电力有限公司南通供电分公司 | Device for cleaning bird nest of electric power tower and operation method |
-
2020
- 2020-05-25 CN CN202020885984.7U patent/CN212085661U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284934A (en) * | 2021-11-23 | 2022-04-05 | 国网浙江省电力有限公司宁波供电公司 | Electric power bird nest removing robot |
| CN114284934B (en) * | 2021-11-23 | 2023-09-26 | 国网浙江省电力有限公司宁波供电公司 | Electric nest removing robot |
| CN115092386A (en) * | 2022-06-23 | 2022-09-23 | 国网江苏省电力有限公司南通供电分公司 | Device for cleaning bird nest of electric power tower and operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212085661U (en) | Many rotor unmanned aerial vehicle distribution lines shaft tower nest clearing device | |
| CN203086053U (en) | High voltage transmission line foreign matter removing device | |
| CN113080183A (en) | 6G communication tower bird repellent device | |
| CN113300269A (en) | Bird's nest device is clear away to intelligent built on stilts distribution lines | |
| CN106911113A (en) | It is applied to the icing sweeping robot of overhead power transmission line | |
| CN104308828B (en) | Device removed by bird's nest | |
| CN106898988A (en) | A kind of overhead transmission line deicing robot | |
| CN204481392U (en) | A kind of transmission line bird's nest removal tool | |
| CN106898987A (en) | For overhead transmission line except frost robot | |
| CN201887409U (en) | Mechanical withdrawal device for antivibration hammer of overhead power transmission line | |
| CN202550273U (en) | Compression spring type power grounding wire operating arm | |
| CN107732781B (en) | Automatic traction insulation shielding device | |
| CN102792820A (en) | Multifunctional nut picking machine | |
| CN218940499U (en) | Bird nest removing device for internal structural facilities of transformer substation | |
| CN208940790U (en) | Overhead line iron tower position bird repellent device | |
| CN112450199A (en) | Electromagnetic induction type acousto-optic bird repeller | |
| CN207952065U (en) | A kind of porcelain vase clean robot | |
| CN107644710B (en) | It is a kind of to monitor the power transmission cable and replacing options for fractureing and seeping water | |
| CN206789981U (en) | The powered attaching/detaching apparatus of bird repellent windmill | |
| CN210745722U (en) | Intelligent agricultural data transmission device based on wireless transmission | |
| CN106409445B (en) | A kind of anti-unfirmly closing protective cover of recyclable used in composite insulator | |
| CN218397939U (en) | Bird repeller electrified remote control installation operation tool | |
| CN219537281U (en) | Bird-repelling structure of high-voltage transmission line | |
| CN212784695U (en) | Cable snow remover | |
| CN218691903U (en) | Electrified scrubbing device of insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |