CN213610317U - Dust removal collection device for high-voltage pulse dust remover - Google Patents
Dust removal collection device for high-voltage pulse dust remover Download PDFInfo
- Publication number
- CN213610317U CN213610317U CN202022514424.3U CN202022514424U CN213610317U CN 213610317 U CN213610317 U CN 213610317U CN 202022514424 U CN202022514424 U CN 202022514424U CN 213610317 U CN213610317 U CN 213610317U
- Authority
- CN
- China
- Prior art keywords
- dust
- ash
- collecting box
- rod
- plate
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 163
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims abstract description 22
- 230000002146 bilateral effect Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Electrostatic Separation (AREA)
Abstract
The utility model discloses a dust removal collection device that high-voltage pulse dust remover was used, including the ash collecting box, the ash collecting box is vertical to be placed, ash collecting box top surface has transversely been seted up into the ash mouth, and ash collecting box right side level is provided with an ash discharging barrel, and ash discharging barrel left side opening sets up, ash discharging barrel left end is fixed to be link up ash collecting box side and extends to the ash collecting incasement portion, and the inside level of ash discharging barrel is provided with out grey pole, ash discharging rod fixed surface is provided with helical blade. The dust collection box of the utility model is provided with the left and right dust resistance plates to lead dust to drop from the dust collector into the dust collection box, thereby avoiding the dust from being raised; the movable plate, the extension spring and the cam are arranged, so that the movable plate can reciprocate up and down along with the rotation of the cam, and the two groups of dust blocking plates can further vibrate up and down to enable dust adhered to the top surfaces of the dust blocking plates to fall to the bottom of the dust collection box; through being provided with an ash discharge cylinder, a motor I, an ash discharge rod and a helical blade, dust falling to the bottom of the dust collection box is discharged quickly.
Description
Technical Field
The utility model relates to a high-voltage pulse dust remover technical field specifically is a dust removal collection device that high-voltage pulse dust remover was used.
Background
The pulse dust collector is a dry dust collector, also called a filter dust collector, which is a dust collector for collecting solid particles in dust-containing gas by utilizing a bag-type filter element made of fiber braided fabric, the action principle is that dust is intercepted due to the contact of inertia effect and fiber when passing through filter cloth fiber, the dust collected on a filter bag is periodically cleared by a dust cleaning device and falls into an ash hopper, and then is discharged by an ash discharging system, therefore, the pulse dust collector is necessary dust collecting equipment for rice to enter and exit a bin, has advanced and horizontal high-efficiency bag-type dust collecting equipment, is the dust collecting equipment with large air quantity, good dust cleaning effect, high dust collecting efficiency, reliable operation, convenient maintenance and small floor area, rice can generate a large amount of dust in the process of entering and exiting the bin, if the dust can not be effectively collected, environmental pollution and personnel health can be caused, even dust explosion can be caused, the dust removal effect of the dust remover plays a particularly key role in the process of entering and exiting the bin.
The existing dust removal and collection device for the high-voltage pulse dust collector can cause dust to fall and raise when in use, and no measure for inhibiting dust from raising is provided, so that the invention of the dust removal and collection device for the high-voltage pulse dust collector is urgently needed to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dust removal collection device that high-pressure pulse dust remover was used to solve the problem that proposes among the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: a dust removal and collection device for a high-voltage pulse dust collector comprises a dust collection box, wherein the dust collection box is vertically arranged, the top surface of the dust collection box is transversely provided with a dust inlet, the right side of the dust collection box is horizontally provided with a dust outlet barrel, the left side of the dust outlet barrel is opened, the left end of the dust outlet barrel is fixedly communicated with the side surface of the dust collection box and extends into the dust collection box, the inner part of the dust outlet barrel is horizontally provided with a dust outlet rod, the surface of the dust outlet rod is fixedly provided with a spiral blade, the right end of the dust outlet barrel is provided with a motor I, the bottom surface of the dust outlet barrel is provided with a dust outlet close to one end of the motor, the bottom surface of the dust collection box is provided with a fixed block, a fixed plate is vertically arranged above the fixed block, the left end surface and the right end surface of the fixed plate are fixedly connected with the contact position of the inner wall of the dust collection box, the ash blocking plate is sleeved on the fixed rod, a side plate is transversely arranged at the upper end of the ash blocking plate, the bottom surface of the side plate is fixedly connected with the contact position of the top surface of the rear end of the ash blocking plate, a control through groove is formed in the front surface of the side plate, which is far away from one end of the fixed rod, a control rod is horizontally arranged in the control through groove, the surface of the front end of the control rod is in sliding connection with the contact position of the upper inner wall and the lower inner wall of the control through groove, a limiting through groove is vertically formed in the front surface of the fixed plate, which corresponds to the rear end of the control rod, the fixed rod, the ash blocking plate, the side plate and the control rod are arranged in a left-right symmetrical mode according to the central line of the front surface of the fixed plate, each group of the fixed rod, the ash blocking plate, the side plate and the control, the dust collection box back is provided with motor two, motor two openly and dust collection box back fixed connection, two output rod front ends of motor run through the dust collection box back and extend to the movable plate top, the fixed cover in two output rod front end surface of motor is equipped with the cam, cam bottom surface and movable plate top surface fixed connection, vertically be provided with extension spring between movable plate top surface and the inside top surface of dust collection box.
Furthermore, the dust collecting box bottom is provided with the universal wheel, the universal wheel top surface contacts position fixed connection with the dust collecting box bottom surface, the universal wheel is four, four the universal wheel evenly sets up in dust collecting box bottom four corners, the device overall movement of being convenient for.
Furthermore, go out grey section of thick bamboo right-hand member face and a motor left end face fixed connection, a motor output pole passes through grey section of thick bamboo side and goes out grey pole right-hand member fixed connection, through being provided with a grey section of thick bamboo, motor one, play grey pole and helical blade, makes the dust that falls to the dust collection box bottom discharge fast.
Further, fixed block bottom surface and the inside bottom surface looks adaptation of collection ash case, fixed block bottom surface and the inside bottom surface fixed connection of collection ash case, the fixed block top surface slopes to the right and sets up, and the dust of being convenient for is concentrated in a grey section of thick bamboo one end.
Furthermore, the contact position of the front end surface and the rear end surface of the fixed rod with the inner wall of the fixed plate and the contact position of the inner wall of the dust collection box are fixedly connected.
Furthermore, two limiting through grooves are formed and are arranged in bilateral symmetry with the center line of the front face of the fixing plate, and the contact positions of the rear end surface of the control rod and the left and right inner walls of the limiting through grooves are in sliding connection.
Furthermore, the upper end and the lower end of each extension spring are fixedly connected with the top surface of the interior of the dust collection box and the top surface of the moving block, the number of the extension springs is two, the two extension springs are arranged in bilateral symmetry by taking the cam as a center line, and the two extension springs are in a contraction state.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the dust removal and collection device for the high-voltage pulse dust remover enables dust to fall into the dust collection box from the dust remover through the left and right dust resistance plates, so that the dust is prevented from being raised; the movable plate, the extension spring and the cam are arranged, so that the movable plate can reciprocate up and down along with the rotation of the cam, and the two groups of dust blocking plates can further vibrate up and down to enable dust adhered to the top surfaces of the dust blocking plates to fall to the bottom of the dust collection box; through being provided with an ash discharge cylinder, a motor I, an ash discharge rod and a helical blade, dust falling to the bottom of the dust collection box is discharged quickly.
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 front structural sectional view of the integral front fixing plate of the present invention;
FIG. 2 is a sectional view of the rear structure of the integral front fixing plate of the present invention;
fig. 3 is a schematic diagram of the overall top view structure of the present invention;
FIG. 4 is a top cross-sectional view of the ash collection box of the present invention;
fig. 5 is an enlarged view of the region a in fig. 1 according to the present invention;
fig. 6 is an enlarged view of the region B in fig. 2 according to the present invention.
In the figure: 1, a dust collecting box; 2, universal wheels; 3, an ash inlet; 4, discharging the ash cylinder; 5, a first motor; 6, a dust discharging rod; 7 a helical blade; 8, an ash outlet; 9, fixing blocks; 10 fixing the plate; 11 fixing the rod; 12 a dust blocking plate; 13 side plates; 14 control through grooves; 15 a control lever; 16 limit through grooves; 17 moving the plate; 18 an extension spring; 19, a second motor; 20 cams.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a dust removal and collection device for a high-voltage pulse dust collector comprises a dust collection box 1, wherein the dust collection box 1 is vertically arranged, universal wheels 2 are arranged at the bottom of the dust collection box 1, the top surfaces of the universal wheels 2 are fixedly connected with the bottom surface of the dust collection box 1 in a contact position, four universal wheels 2 are arranged, the four universal wheels 2 are uniformly arranged at the four corners of the bottom of the dust collection box 1, a dust inlet 3 is transversely arranged on the top surface of the dust collection box 1, a dust outlet barrel 4 is horizontally arranged at the right side of the dust collection box 1, the left side of the dust outlet barrel 4 is provided with an opening, the left end of the dust outlet barrel 4 is fixedly communicated with the side of the dust collection box 1 and extends into the dust collection box 1, a dust outlet rod 6 is horizontally arranged in the dust outlet barrel 4, a spiral blade 7 is fixedly arranged on the surface of the dust outlet rod 6, a motor I5 is arranged at the right end of the dust outlet barrel 4, the right end of the dust outlet barrel, the bottom surface of the ash discharging barrel 4 is provided with an ash discharging port 8 close to one end of the motor I5, dust falling to the bottom of the dust collection box 1 is rapidly discharged by arranging the ash discharging barrel 4, the motor I5, an ash discharging rod 6 and a helical blade 7, the bottom surface of the inner part of the dust collection box 1 is provided with a fixed block 9, the bottom surface of the fixed block 9 is matched with the bottom surface of the inner part of the dust collection box 1, the bottom surface of the fixed block 9 is fixedly connected with the bottom surface of the inner part of the dust collection box 1, the top surface of the fixed block 9 is arranged obliquely rightwards, a fixed plate 10 is vertically arranged above the fixed block 9, the left end surface and the right end surface of the fixed plate 10 are fixedly connected with the contact position of the inner wall of the dust collection box 1, a fixed rod 11 is horizontally arranged between the front surface of the fixed plate 10 and the inner wall of the dust collection box, an ash blocking plate 12 is sleeved on the fixed rod 11, a side plate 13 is transversely arranged at the upper end of the ash blocking plate 12, the bottom surface of the side plate 13 is fixedly connected with the contact position of the top surface of the rear end of the ash blocking plate 12, a control through groove 14 is formed in one end of the front surface of the side plate 13, which is far away from the fixed rod 11, a control rod 15 is horizontally arranged in the control through groove 14, the front end surface of the control rod 15 is in sliding connection with the contact position of the upper inner wall and the lower inner wall of the control through groove 14, two limiting through grooves 16 are vertically formed in the front surface of the fixed plate 10, the two limiting through grooves 16 are symmetrically arranged at the left and right of the central line of the front surface of the fixed plate 10, the contact position of the left inner wall and the right of the limiting through groove 16 is in sliding connection with the rear end surface of the rear end of the control rod 15, the fixed, the dust removal and collection device for the high-voltage pulse dust remover enables dust to fall into the dust collection box 1 from the dust remover through the arrangement of the left dust resistance plate and the right dust resistance plate 12, so as to avoid the dust from rising, the movable plate 17 is vertically arranged between the back surface of the fixed plate 10 and the inner wall of the dust collection box 1, the front surface of the movable plate 17 is fixedly connected with the rear end surfaces of the four control rods 15, the front end surface and the rear end surface of the movable plate 17 are in sliding connection with the contact positions of the back surface of the fixed plate 10 and the inner wall of the dust collection box 1, the back surface of the dust collection box 1 is provided with the motor II 19, the front surface of the motor II 19 is fixedly connected with the back surface of the dust collection box 1, the front end of the output rod of the motor II 19 penetrates through the back surface of the dust collection box 1 and extends to the upper part of the movable plate 17, the upper end and the lower end of each extension spring 18 are fixedly connected with the top surface inside the dust collection box 1 and the top surface of the moving block 17, the number of the extension springs 18 is two, the two extension springs 18 are arranged in bilateral symmetry by taking the cam as a central line, the two extension springs 18 are in a contraction state, the moving plate 17 rotates along with the cam 20 to reciprocate up and down, and the two sets of dust blocking plates 12 further vibrate up and down to enable dust adhered to the top surfaces of the dust blocking plates 12 to fall to the bottom of the dust collection box 1.
The utility model discloses a theory of operation: by arranging the moving plate 17, the extension spring 18 and the cam 20, the moving plate 17 rotates along with the cam 20 to reciprocate up and down, and further the two groups of dust blocking plates 12 vibrate up and down to enable dust adhered to the top surfaces of the dust blocking plates 12 to fall to the bottom of the dust collection box 1; through being provided with an ash discharge tube 4, a motor 5, an ash discharge rod 6 and a helical blade 7, dust falling to the bottom of the dust collection box 1 is discharged rapidly.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 dust removal collection device that high-pressure pulse dust remover was used, includes dust collecting box (1), its characterized in that: the ash collecting box is characterized in that the ash collecting box (1) is vertically placed, an ash inlet (3) is transversely formed in the top surface of the ash collecting box (1), an ash discharging cylinder (4) is horizontally arranged on the right side of the ash collecting box (1), an opening in the left side of the ash discharging cylinder (4) is arranged, the left end of the ash discharging cylinder (4) is fixedly communicated with the side surface of the ash collecting box (1) and extends into the ash collecting box (1), an ash discharging rod (6) is horizontally arranged in the ash discharging cylinder (4), a spiral blade (7) is fixedly arranged on the surface of the ash discharging rod (6), a motor I (5) is arranged at the right end of the ash discharging cylinder (4), an ash outlet (8) is formed in one end, close to the motor I (5), of the bottom surface of the ash discharging cylinder (4), a fixing block (9) is arranged on the bottom surface in the ash collecting box (1), a fixing plate (10) is vertically arranged above the fixing block (9), and the left, the fixing plate (10) is horizontally provided with a fixing rod (11) between the front side of the fixing plate (10) and the inner wall of the ash collecting box (1), the front end and the rear end of the fixing rod (11) penetrate through the inner wall of the fixing plate (10) and the inner wall of the ash collecting box (1), the fixing rod (11) is sleeved with an ash blocking plate (12), a side plate (13) is transversely arranged at the upper end of the ash blocking plate (12), the bottom surface of the side plate (13) is fixedly connected with the contact position of the top surface of the rear end of the ash blocking plate (12), one end of the side plate (13) which is away from the fixing rod (11) is provided with a control through groove (14), a control rod (15) is horizontally arranged in the control through groove (14), the front end surface of the control rod (15) is slidably connected with the contact position of the upper inner wall and the lower inner, the fixing rods (11), the ash blocking plates (12), the side plates (13) and the control rods (15) are arranged in a mode of two groups of fixing plates (10) in a front central line bilateral symmetry mode, each group of fixing rods (11), the ash blocking plates (12), the side plates (13) and the control rods (15) are arranged up and down in two modes, a movable plate (17) is vertically arranged between the back face of each fixing plate (10) and the inner wall of the ash collecting box (1), the front face of each movable plate (17) is fixedly connected with the rear end faces of the four control rods (15), the front end faces of the movable plates (17) are in sliding connection with the contact positions of the back faces of the fixing plates (10) and the inner walls of the ash collecting box (1), a second motor (19) is arranged on the back face of the ash collecting box (1), the front ends of output rods of the second motor (19) penetrate through the back face of the ash collecting box (1) and extend, the surface of the front end of an output rod of the second motor (19) is fixedly sleeved with a cam (20), the bottom surface of the cam (20) is fixedly connected with the top surface of the movable plate (17), and an extension spring (18) is vertically arranged between the top surface of the movable plate (17) and the top surface inside the dust collection box (1).
2. The dust-removing and collecting device for the high-voltage pulse dust remover according to claim 1, wherein: the dust collection box is characterized in that universal wheels (2) are arranged at the bottom of the dust collection box (1), the top surfaces of the universal wheels (2) are fixedly connected with the bottom surface of the dust collection box (1) in a contact position, the number of the universal wheels (2) is four, and the universal wheels (2) are uniformly arranged at four corners of the bottom of the dust collection box (1).
3. The dust-removing and collecting device for the high-voltage pulse dust remover according to claim 1, wherein: the right end face of the ash discharging barrel (4) is fixedly connected with the left end face of a motor (5), and an output rod of the motor (5) penetrates through the side face of the ash discharging barrel (4) and is fixedly connected with the right end of an ash discharging rod (6).
4. The dust-removing and collecting device for the high-voltage pulse dust remover according to claim 1, wherein: fixed block (9) bottom surface and the inside bottom surface looks adaptation of collection ash case (1), fixed block (9) bottom surface and the inside bottom surface fixed connection of collection ash case (1), fixed block (9) top surface slopes to the right and sets up.
5. The dust-removing and collecting device for the high-voltage pulse dust remover according to claim 1, wherein: the contact position of the front end surface and the rear end surface of the fixed rod (11) with the inner wall of the fixed plate (10) and the contact position of the inner wall of the dust collection box (1) are fixedly connected.
6. The dust-removing and collecting device for the high-voltage pulse dust remover according to claim 1, wherein: the number of the limiting through grooves (16) is two, the two limiting through grooves (16) are arranged in a bilateral symmetry mode by using the center line of the front face of the fixing plate (10), and the rear end surface of the control rod (15) is in sliding connection with the contact positions of the left inner wall and the right inner wall of the limiting through groove (16).
7. The dust-removing and collecting device for the high-voltage pulse dust remover according to claim 1, wherein: the upper end and the lower end of each extension spring (18) are fixedly connected with the top surface of the interior of the dust collecting box (1) and the top surface of the movable plate (17), the number of the extension springs (18) is two, the extension springs (18) are arranged in a bilateral symmetry mode by taking the cam as a center line, and the extension springs (18) are in a contraction state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022514424.3U CN213610317U (en) | 2020-11-03 | 2020-11-03 | Dust removal collection device for high-voltage pulse dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022514424.3U CN213610317U (en) | 2020-11-03 | 2020-11-03 | Dust removal collection device for high-voltage pulse dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213610317U true CN213610317U (en) | 2021-07-06 |
Family
ID=76629733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022514424.3U Expired - Fee Related CN213610317U (en) | 2020-11-03 | 2020-11-03 | Dust removal collection device for high-voltage pulse dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213610317U (en) |
-
2020
- 2020-11-03 CN CN202022514424.3U patent/CN213610317U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111438978B (en) | Environment-friendly building rubbish shaping baling press | |
| CN115253501B (en) | Laterite-nickel ore high-temperature flue gas bag-type dust removal equipment and method | |
| CN213610317U (en) | Dust removal collection device for high-voltage pulse dust remover | |
| CN201085970Y (en) | Back flushing cloth bag dust-collecting equipment | |
| CN219922416U (en) | Movable particulate matter removing equipment | |
| CN206763146U (en) | A kind of electrostatic precipitator of automatic cleaning dust | |
| CN112191045A (en) | Environment-friendly sack dust shaker | |
| CN210251565U (en) | High-temperature and high-humidity resistant filter bag and bag-type dust collector using same | |
| CN216678612U (en) | Intelligent electric dust remover | |
| CN212881489U (en) | Sack dust shaker with ash bag ash removal device | |
| CN203417563U (en) | Circulating reflux type dust removing structure and movable circulating reflux type industrial dust collector | |
| CN213610309U (en) | Industrial bag-type dust collector | |
| CN213132370U (en) | Dust exhaust device of power equipment dust remover | |
| CN213942438U (en) | Environment-friendly sack dust shaker | |
| CN213433458U (en) | Bag-type dust collector convenient for cleaning impurities | |
| CN201500490U (en) | Automatic dedusting filter device | |
| CN211328549U (en) | Pulse dust collector | |
| CN103316555B (en) | Circulation reflux dedusting structure, and mobile circulation reflux industrial vacuum cleaner | |
| CN113145311A (en) | Circular rotating anode mesh plate diameter filtering type electric dust remover | |
| CN215916740U (en) | Bag-type dust collector device | |
| CN219596183U (en) | Textile workshop filter screen cleaning device | |
| CN110755975A (en) | Double-layer filtering type bag-type dust collector | |
| CN209138184U (en) | Bag filter assists deashing device | |
| CN217526728U (en) | Bamboo wood processing dust wind channel collection device | |
| CN213527834U (en) | Long-bag off-line pulse dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210706 |