CN215820128U - Network live broadcast equipment for vocal music teaching - Google Patents
Network live broadcast equipment for vocal music teaching Download PDFInfo
- Publication number
- CN215820128U CN215820128U CN202121572280.5U CN202121572280U CN215820128U CN 215820128 U CN215820128 U CN 215820128U CN 202121572280 U CN202121572280 U CN 202121572280U CN 215820128 U CN215820128 U CN 215820128U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- live broadcast
- fixing ring
- microphone
- supporting rod
- 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
- 230000001755 vocal effect Effects 0.000 title claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 3
- 238000013016 damping Methods 0.000 claims description 8
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- 238000010899 nucleation Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model discloses a network live broadcast device for vocal music teaching, which relates to the technical field of music auxiliary tools and comprises the following components: the device comprises a base, a support rod, a storage box, a controller, a direct broadcast station, a fixing ring and a microphone; the top of the base is fixedly connected with a supporting rod; the middle of the right side surface of the supporting rod is fixedly connected with a storage box; the inside of the storage box is movably connected with a microphone; the top of the right side surface of the supporting rod is fixedly connected with a controller; the top of the supporting rod is movably and fixedly connected with a direct seeding table; the middle of the front side of the direct seeding table is fixedly connected with a fixing ring; has the advantages that: the microphone can be placed in the fixing ring by breaking the fixing ring, the fixing ring fixes the microphone, and meanwhile, the anti-skidding lugs in the fixing ring can prevent the microphone from skidding when being fixed in the fixing ring; therefore, the microphone is not needed to be held by hands during live broadcasting, and the live broadcasting method is more convenient.
Description
Technical Field
The utility model relates to the technical field of music auxiliary tools, in particular to network live broadcast equipment for vocal music teaching.
Background
The 'network live broadcast' is roughly divided into two types, one type is that television signals are provided on the internet for watching, such as the live broadcast of various sports competitions and literary and art activities, the live broadcast principle is that the television signals are collected and converted into digital signals to be input into a computer, and the digital signals are uploaded to a website in real time for people to watch, and the principle is equivalent to 'network television'; the other is the 'live webcast' known by people, namely, independent signal acquisition equipment is erected on the site and led into a broadcast directing platform, and then the broadcast directing platform is uploaded to a server through a network and is released to a website for people to watch;
the equipment used in the prior network live broadcasting has the following disadvantages; the height and the angle of the live broadcast station cannot be adjusted, so that the live broadcast station cannot be suitable for people with different heights to carry out vocal music live broadcast; meanwhile, when the writing board is used in live broadcasting, the writing board is inconvenient to store, and the microphone is inconvenient to fix, so that the writing board is inconvenient to use; therefore, a network live broadcast device for vocal music teaching is provided to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome the defects of the prior art, the network live broadcast equipment for vocal music teaching is provided, and aims to solve the problems that the height and the angle of a live broadcast station cannot be adjusted in the existing network live broadcast, so that the live broadcast station cannot adapt to people with different heights to carry out vocal music live broadcast; when using the clipboard during live simultaneously, be not convenient for accomodate the clipboard, and the microphone is not fixed problem convenient to.
(II) technical scheme
The utility model is realized by the following technical scheme: the utility model provides a network live broadcast device for vocal music teaching, which comprises: the device comprises a base, a support rod, a storage box, a controller, a direct broadcast station, a fixing ring and a microphone; the top of the base is fixedly connected with a supporting rod; the middle of the right side surface of the supporting rod is fixedly connected with a storage box; a microphone is movably connected inside the storage box; the top of the right side surface of the supporting rod is fixedly connected with a controller; the top of the supporting rod is movably and fixedly connected with a direct seeding table; the middle of the front side of the direct seeding table is fixedly connected with a fixing ring;
the bracing piece includes: the device comprises a sliding chute, a servo motor, a threaded lead screw, a lifting rod, a threaded sleeve, a sliding block, a bearing, an installation block and a rotating shaft; the left side and the right side of the inside of the supporting rod are fixedly connected with sliding chutes; the bottom inside the supporting rod is fixedly connected with a servo motor; the output end of the top of the servo motor is fixedly connected with a threaded lead screw; the inner part of the supporting rod is movably connected with a lifting rod; the bottom of the lifting rod is fixedly connected with a threaded sleeve, and the interior of the threaded sleeve is movably connected to a threaded lead screw; the left side and the right side of the bottom of the lifting rod are fixedly connected with sliding blocks, and the sliding blocks are movably connected inside the sliding grooves; the top of the lifting rod is fixedly connected with a bearing; a rotating shaft is fixedly connected inside the inner ring of the lifting rod; the top of the rotating shaft is fixedly connected with an installation block;
the live broadcast station includes: the device comprises a placing groove, a damping rotating shaft, a direct seeding plate, a computer display screen, a camera, a sound box, a cavity, a writing board, a groove and a writing pen; a placing groove is fixedly connected inside the direct seeding table; the left side and the right side in the placing groove are movably connected with a direct seeding plate through a damping rotating shaft; the front side of the live broadcast board is fixedly connected with a computer display screen; the top of the front side of the direct seeding plate is fixedly connected with a camera; the left side and the right side of the front surface of the direct seeding plate are fixedly connected with a sound box; one side in the placing groove is fixedly connected with a cavity; a writing board is movably connected inside the cavity; the right side of the front surface of the writing board is fixedly connected with a groove; the writing pen is movably connected inside the groove.
Preferably, the thread sleeve is matched with the thread on the outer wall of the threaded lead screw, and the sliding block and the sliding groove are of a sliding structure.
Preferably, the bottom of the mounting block is equidistant from the top of the lifting rod, and the mounting block is fixed inside the bearing inner ring through a rotating shaft.
Preferably, the top surface of the mounting block is arranged at an angle of 45 °.
Preferably, the writing board and the cavity are in a mosaic structure.
Preferably, the fixing ring is supported by elastic plastic, the fixing ring is provided with a circular ring opening, and the inner wall of the fixing ring is provided with an anti-skid bump.
Preferably, the controller is electrically connected with the servo motor, the computer display screen, the camera, the sound box and the microphone.
(III) advantageous effects
Compared with the prior art, the utility model has the following beneficial effects:
(1) the threaded lead screw is driven to rotate through the servo motor, so that the threaded lead screw of the threaded sleeve moves upwards, the threaded sleeve drives the lifting rod to move upwards, and the lifting rod drives the mounting block and the direct seeding table to move synchronously; therefore, the height of the direct broadcast station can be adjusted, so that the direct broadcast station can be suitable for people with different heights to carry out direct vocal broadcasting; stir the live broadcast platform simultaneously, make the installation piece drive the pivot and rotate inside bearing inner race, make the live broadcast platform rotate to can adjust the live broadcast angle of live broadcast platform.
(2) When knowledge points need to be written during live broadcasting, the writing board can be taken out from the cavity, and then writing is carried out on the writing board through the writing pen in the groove; when not in use, the writing board can be put back into the cavity, thereby being convenient for use and storage.
(3) The microphone can be placed in the fixing ring by breaking the fixing ring, the fixing ring fixes the microphone, and meanwhile, the anti-skidding lugs in the fixing ring can prevent the microphone from skidding when being fixed in the fixing ring; therefore, the microphone is not needed to be held by hands during live broadcasting, and the live broadcasting method is more convenient.
FIG. 1 is a front view of the present invention in its entirety;
FIG. 2 is a schematic view of the overall deployment of the present invention;
FIG. 3 is a schematic view of the overall support bar construction of the present invention;
FIG. 4 is a schematic view of an integral fixation ring configuration of the present invention;
FIG. 5 is a cross-sectional view of the support bar of the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 5;
fig. 7 is an enlarged sectional view of the entire structure of fig. 1 a.
The reference numerals are explained below:
1. a base; 2. a support bar; 201. a chute; 202. a servo motor; 203. a threaded lead screw; 204. a lifting rod; 205. a threaded sleeve; 206. a slider; 207. a bearing; 208. mounting blocks; 209. a rotating shaft; 3. a storage box; 4. a controller; 5. a live broadcast station; 501. a placing groove; 502. a damping rotating shaft; 503. a direct seeding plate; 504. a computer display screen; 505. a camera; 506. sounding; 507. a cavity; 508. a writing board; 509. a groove; 510. a writing pen; 6. a fixing ring; 7. a microphone.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
As shown in fig. 1 to 7, a network live broadcast device for vocal music teaching includes: the device comprises a base 1, a support rod 2, a storage box 3, a controller 4, a direct broadcast station 5, a fixing ring 6 and a microphone 7; the top of the base 1 is fixedly connected with a supporting rod 2; the middle of the right side surface of the support rod 2 is fixedly connected with a storage box 3; a microphone 7 is movably connected inside the storage box 3; the top of the right side surface of the support rod 2 is fixedly connected with a controller 4; the top of the support rod 2 is movably and fixedly connected with a direct seeding table 5; the middle of the front side of the direct seeding table 5 is fixedly connected with a fixing ring 6;
the support rod 2 includes: the device comprises a chute 201, a servo motor 202, a threaded lead screw 203, a lifting rod 204, a threaded sleeve 205, a sliding block 206, a bearing 207, a mounting block 208 and a rotating shaft 209; the left side and the right side of the inside of the supporting rod 2 are fixedly connected with chutes 201; the bottom inside the supporting rod 2 is fixedly connected with a servo motor 202; the output end of the top of the servo motor 202 is fixedly connected with a threaded lead screw 203; the inside of the supporting rod 2 is movably connected with a lifting rod 204; the bottom of the lifting rod 204 is fixedly connected with a threaded sleeve 205, and the interior of the threaded sleeve 205 is movably connected to the threaded screw rod 203; the left side and the right side of the bottom of the lifting rod 204 are both fixedly connected with sliding blocks 206, and the sliding blocks 206 are both movably connected inside the sliding groove 201; the top of the lifting rod 204 is fixedly connected with a bearing 207; a rotating shaft 209 is fixedly connected inside the inner ring of the lifting rod 204; the top of the rotating shaft 209 is fixedly connected with a mounting block 208;
the live broadcast station 5 includes: the device comprises a placement groove 501, a damping rotating shaft 502, a direct broadcast board 503, a computer display screen 504, a camera 505, a sound 506, a cavity 507, a writing board 508, a groove 509 and a writing pen 510; a placing groove 501 is fixedly connected inside the direct broadcasting station 5; the left side and the right side inside the placing groove 501 are movably connected with a live broadcast plate 503 through a damping rotating shaft 502; the front of the live broadcast board 503 is fixedly connected with a computer display screen 504; the top of the front side of the live broadcast plate 503 is fixedly connected with a camera 505; the left and right sides of the front of the live broadcast board 503 are fixedly connected with a sound 506; a cavity 507 is fixedly connected to one side inside the placing groove 501; a writing board 508 is movably connected inside the cavity 507; the right side of the front surface of the writing board 508 is fixedly connected with a groove 509; a writing pen 510 is movably connected inside the groove 509.
In this embodiment, the thread sleeve 205 is matched with the thread of the outer wall of the threaded lead screw 203, and the sliding block 206 and the sliding groove 201 are of a sliding structure.
When the device is used specifically, the servo motor 202 drives the threaded lead screw 203 to rotate, so that the threaded lead screw 203 of the threaded sleeve 205 moves upwards, meanwhile, the threaded sleeve 205 drives the lifting rod 204 to move upwards, and meanwhile, the lifting rod 204 drives the mounting block 208 and the live broadcast station 5 to move synchronously; therefore, the height of the direct broadcasting station 5 can be adjusted, so that the direct broadcasting station 5 can be suitable for the direct vocal broadcasting of people with different heights;
at the same time, the sliding block 206 also moves in the sliding groove 201, so that the lifting rod 204 is more stable when moving.
In this embodiment, the bottom of the mounting block 208 is equidistant from the top of the lifting rod 204, and the mounting block 208 is fixed inside the inner ring of the bearing 207 through the rotating shaft 209.
During specific use, through stirring live broadcast station 5, make installation piece 208 drive pivot 209 rotate in bearing 207 inner circle inside, make live broadcast station 5 rotate to can adjust the live broadcast angle of live broadcast station 5.
In this embodiment, the top surface of the mounting block 208 is disposed at an angle of 45 °.
During specific use, when making live broadcast station 5 install on installation piece 208, also be 45 jiaos and set up, make live broadcast station 5 be the inclined setting when using, when placing the music book on groove 501, live personnel are better to look at the music book.
In this embodiment, the writing board 508 and the cavity 507 are in a mosaic structure.
During specific use, when knowledge points need to be written during live broadcasting, the writing board 508 can be taken out from the cavity 507, and then writing is carried out on the writing board 508 through the writing pen 510 in the groove 509; when not in use, tablet 508 may be placed back inside cavity 507 for ease of use and storage.
In this embodiment, the fixing ring 6 has an elastic plastic support, the fixing ring 6 is disposed in a circular opening, and the inner wall of the fixing ring 6 is provided with an anti-slip bump.
When the microphone fixing device is used specifically, the microphone 7 can be placed inside the fixing ring 6 by breaking the fixing ring 6, the fixing ring 6 fixes the microphone 7, and meanwhile, the anti-skidding lugs inside the fixing ring 6 can prevent the microphone from skidding when being fixed inside the fixing ring 6; thereby making the live broadcast without the hand-held microphone 7.
In this embodiment, the controller 4 is electrically connected to the servo motor 202, the computer display 504, the camera 505, the speaker 506, and the microphone 7.
When the device is used specifically, the controller 4 can control the working states of the servo motor 202, the computer display 504, the camera 505, the sound 506 and the microphone 7; can shoot the direct broadcasting personnel through camera 505, computer display screen 504 can dock with the direct broadcasting software, makes the synchronous demonstration of direct broadcasting personnel on computer display screen 504 and direct broadcasting software, and the available microphone 7 of direct broadcasting personnel carries out the vocal music sound production, and stereo set 506 is taken to the sound of microphone 7 simultaneously, and the vocal music synchronous display is on the direct broadcasting software. The data is collected by a camera 505, converted into digital signals and input into a computer display screen 504, and uploaded to live broadcast software in real time for people to watch.
The utility model provides a working principle of network live broadcast equipment for vocal music teaching, which comprises the following steps:
firstly, connecting a controller 4, a servo motor 202, a computer display screen 504, a camera 505, a sound 506 and a microphone 7 with a power supply, and controlling the working states of the servo motor 202, the computer display screen 504, the camera 505, the sound 506 and the microphone 7 through the controller 4;
when the computer display screen is used, the live broadcast board 503 can be opened through the damping rotating shaft 502, so that the computer display screen 504 is displayed; music scores can be placed on the placing groove 501, so that the direct broadcast personnel can better look at the music scores.
Then, the servo motor 202 drives the threaded lead screw 203 to rotate, so that the threaded lead screw 203 of the threaded sleeve 205 moves upwards, meanwhile, the threaded sleeve 205 drives the lifting rod 204 to move upwards, and meanwhile, the lifting rod 204 drives the mounting block 208 and the live broadcast station 5 to move synchronously; so that the height of the direct sowing station 5 can be adjusted;
meanwhile, the live broadcast station 5 is shifted, the mounting block 208 drives the rotating shaft 209 to rotate inside the inner ring of the bearing 207, and the live broadcast station 5 rotates, so that the live broadcast angle of the live broadcast station 5 can be adjusted;
after the live broadcasting software is adjusted, live broadcasting can be started, live broadcasting personnel can be shot through the camera, the computer display screen can be in butt joint with the live broadcasting software, the live broadcasting personnel can be synchronously displayed on the computer display screen and the live broadcasting software, the live broadcasting personnel can make vocal music sounding through the microphone, meanwhile, the sound of the microphone is recorded through the sound box, and the vocal music is synchronously displayed on the live broadcasting software; the live broadcast software is uploaded in real time for people to watch;
when knowledge points need to be written during live broadcasting, the writing board 508 can be taken out from the cavity 507, and then writing is carried out on the writing board 508 through the writing pen 510 in the groove 509; when not in use, tablet 508 may be placed back inside cavity 507 for ease of use and storage.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (7)
1. A network live device for vocal music teaching, comprising: the device comprises a base (1), a support rod (2), a storage box (3), a controller (4), a direct broadcast station (5), a fixing ring (6) and a microphone (7); the method is characterized in that: the top of the base (1) is fixedly connected with a supporting rod (2); the middle of the right side surface of the supporting rod (2) is fixedly connected with a storage box (3); a microphone (7) is movably connected inside the storage box (3); the top of the right side surface of the supporting rod (2) is fixedly connected with a controller (4); the top of the supporting rod (2) is movably and fixedly connected with a direct broadcast station (5); the middle of the front side of the direct broadcast station (5) is fixedly connected with a fixed ring (6);
the support rod (2) comprises: the device comprises a sliding chute (201), a servo motor (202), a threaded lead screw (203), a lifting rod (204), a threaded sleeve (205), a sliding block (206), a bearing (207), a mounting block (208) and a rotating shaft (209); the left side and the right side of the inner part of the supporting rod (2) are fixedly connected with sliding chutes (201); the bottom inside the supporting rod (2) is fixedly connected with a servo motor (202); the output end of the top of the servo motor (202) is fixedly connected with a threaded lead screw (203); the inner part of the supporting rod (2) is movably connected with a lifting rod (204); the bottom of the lifting rod (204) is fixedly connected with a threaded sleeve (205), and the interior of the threaded sleeve (205) is movably connected to the threaded lead screw (203); the left side and the right side of the bottom of the lifting rod (204) are fixedly connected with sliding blocks (206), and the sliding blocks (206) are movably connected inside the sliding groove (201); the top of the lifting rod (204) is fixedly connected with a bearing (207); a rotating shaft (209) is fixedly connected inside the inner ring of the lifting rod (204); the top of the rotating shaft (209) is fixedly connected with a mounting block (208);
the live broadcast station (5) comprises: the device comprises a placement groove (501), a damping rotating shaft (502), a direct broadcast plate (503), a computer display screen (504), a camera (505), a sound (506), a cavity (507), a writing board (508), a groove (509) and a writing pen (510); a placing groove (501) is fixedly connected inside the direct broadcasting station (5); the left side and the right side inside the placing groove (501) are movably connected with a direct broadcast plate (503) through a damping rotating shaft (502); the front surface of the live broadcast plate (503) is fixedly connected with a computer display screen (504); the top of the front surface of the live broadcast plate (503) is fixedly connected with a camera (505); the left side and the right side of the front surface of the live broadcast plate (503) are fixedly connected with sound boxes (506); one side inside the placing groove (501) is fixedly connected with a cavity (507); a writing board (508) is movably connected inside the cavity (507); a groove (509) is fixedly connected to the right side of the front surface of the writing board (508); the writing pen (510) is movably connected inside the groove (509).
2. The network live broadcast equipment for vocal music teaching according to claim 1, wherein: the thread sleeve (205) is matched with the thread of the outer wall of the threaded lead screw (203), and the sliding block (206) and the sliding groove (201) are of sliding structures.
3. The network live broadcast equipment for vocal music teaching according to claim 1, wherein: the bottom of the mounting block (208) is equidistant from the top of the lifting rod (204), and the mounting block (208) is fixed inside an inner ring of the bearing (207) through a rotating shaft (209).
4. The network live broadcast equipment for vocal music teaching according to claim 1, wherein: the top surface of the mounting block (208) is arranged at an angle of 45 degrees.
5. The network live broadcast equipment for vocal music teaching according to claim 1, wherein: the writing board (508) and the cavity (507) are in a mosaic structure.
6. The network live broadcast equipment for vocal music teaching according to claim 1, wherein: the fixing ring (6) is supported by elastic plastic, the fixing ring (6) is arranged in a circular ring opening mode, and the inner wall of the fixing ring (6) is provided with an anti-skid block.
7. The network live broadcast equipment for vocal music teaching according to claim 1, wherein: the controller (4) is electrically connected with the servo motor (202), the computer display screen (504), the camera (505), the sound box (506) and the microphone (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121572280.5U CN215820128U (en) | 2021-07-12 | 2021-07-12 | Network live broadcast equipment for vocal music teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121572280.5U CN215820128U (en) | 2021-07-12 | 2021-07-12 | Network live broadcast equipment for vocal music teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215820128U true CN215820128U (en) | 2022-02-15 |
Family
ID=80191805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121572280.5U Expired - Fee Related CN215820128U (en) | 2021-07-12 | 2021-07-12 | Network live broadcast equipment for vocal music teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215820128U (en) |
-
2021
- 2021-07-12 CN CN202121572280.5U patent/CN215820128U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110299035A (en) | A kind of Chinese education internet auxiliary teaching device and system | |
| CN215820128U (en) | Network live broadcast equipment for vocal music teaching | |
| CN214279196U (en) | Novel demonstration device for multimedia | |
| CN109907595A (en) | A kind of technical achievements in enterprise comprehensive service platform | |
| CN111932958A (en) | Internet-based special device for paper-cut art teaching and propaganda and use method thereof | |
| CN105702104A (en) | Digital electronic teaching material intelligent production system | |
| CN206421628U (en) | A kind of ideological and political education teaching Show board | |
| CN213403208U (en) | Interactive integrated touch control intelligent recording and broadcasting live broadcast integrated equipment | |
| CN211087562U (en) | Remote teaching equipment based on cloud calculates | |
| CN210495137U (en) | Monitoring device for table tennis sport field | |
| CN105825726A (en) | PPT classroom teacher centralized monitoring system | |
| CN203606976U (en) | Wireless shooting instrument | |
| CN208173047U (en) | A kind of multimedia music instructional device | |
| CN205068817U (en) | Self -service multi -functional recording system of levying a little | |
| CN205281958U (en) | Teaching is with mechanical transmission structure display device | |
| CN205983944U (en) | Teaching experiment integration podium | |
| CN210574362U (en) | Interactive teaching equipment | |
| CN220509573U (en) | Broadcasting host language training device | |
| CN211742092U (en) | Display device for visual transmission design capable of conveniently releasing mobile phone content | |
| CN221222116U (en) | Embedded recording and broadcasting host | |
| CN213188603U (en) | Computer education multimedia platform | |
| CN220988283U (en) | Display device for selling electronic products | |
| CN210324656U (en) | English sight exercise auxiliary device | |
| CN207302628U (en) | A kind of digital audio recording and playing device of digital train broadcast machine | |
| CN208589161U (en) | A kind of education Multifunctional projection screen |
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: 20220215 |