CN213467166U - Crushing dust remover convenient to wash - Google Patents
Crushing dust remover convenient to wash Download PDFInfo
- Publication number
- CN213467166U CN213467166U CN202022226659.2U CN202022226659U CN213467166U CN 213467166 U CN213467166 U CN 213467166U CN 202022226659 U CN202022226659 U CN 202022226659U CN 213467166 U CN213467166 U CN 213467166U
- Authority
- CN
- China
- Prior art keywords
- pipe
- dust
- dust removing
- cylinder
- bevel gear
- 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 97
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000004140 cleaning Methods 0.000 claims description 44
- 239000002184 metal Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 5
- 230000003670 easy-to-clean Effects 0.000 claims 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 31
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 31
- 241001330002 Bambuseae Species 0.000 abstract description 31
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 31
- 239000011425 bamboo Substances 0.000 abstract description 31
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000010030 laminating Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Images
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
The utility model belongs to the technical field of the dust remover washs, especially, a broken dust remover convenient to wash, to current dust remover be not convenient for carry out inside clearance, need the manual work to clear up, the problem of waste time and manpower, the following scheme is proposed now, and it includes a dust removal section of thick bamboo, and one side intercommunication of a dust removal section of thick bamboo has the intake pipe, and the bottom intercommunication of a dust removal section of thick bamboo has the conical body, and the bottom of conical body is provided with the blow off pipe, is provided with the blowoff valve on the blow off pipe, the top of a dust removal section of thick bamboo is provided with the cover, and perpendicular pipe is installed in the top perpendicular rotation of cover, and the top of cover is provided with water supply structure and drive structure, and water supply structure and drive structure all with perpendicular union coupling, and the outside fixed mounting of perpendicular pipe has four connecting pipes, and sliding connection has two. The utility model discloses be convenient for carry out the inside clearance of a dust removal section of thick bamboo, avoid the manual work to clear up, practiced thrift time and manpower.
Description
Technical Field
The utility model relates to a dust remover washs technical field, especially relates to a broken dust remover convenient to wash.
Background
The breaker equipment is as the main power equipment of mining, mainly carries out the breakage to the building stones that differ in size, and breaker equipment mainly has equipment such as jaw breaker, counterattack formula breaker, impact crusher, ring hammer crusher and cone crusher, produces a large amount of dusts when the breaker uses and need use the dust remover to remove dust, avoids the dust polluted environment.
The existing dust remover is not convenient for cleaning the interior, and needs manual cleaning, which wastes time and manpower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing dust remover is not convenient for cleaning the interior, and needs the manual work to clean, the defects of time waste and manpower, and the provided convenient-to-clean broken dust remover.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a broken dust remover convenient to wash, includes a dust removal section of thick bamboo, and one side intercommunication of a dust removal section of thick bamboo has the intake pipe, and the bottom intercommunication of a dust removal section of thick bamboo has the conical body, and the bottom of conical body is provided with the blow off pipe, is provided with the blowoff valve on the blow off pipe, the top of a dust removal section of thick bamboo is provided with the cover, and the perpendicular pipe is installed in the perpendicular rotation in top of cover, and the top of cover is provided with water supply structure and drive structure, and water supply structure and drive structure all are connected with perpendicular pipe, and the outside fixed mounting of perpendicular pipe has four connecting pipes, and sliding connection has two inner wall cleaning rods on the inner wall of a dust removal section of thick bamboo, inner wall cleaning rod and two connecting pipe fixed connection that correspond, four connecting pipes and the equal.
Preferably, the water supply structure includes water pump, tubular metal resonator, water collector and switching pipe, and water pump fixed connection is at the top of cover, and the one end of tubular metal resonator is connected with the delivery port of water pump, and the other end and the fixed intercommunication of water collector of tubular metal resonator, the switching pipe rotate to be connected in the bottom of water collector, vertical pipe and switching pipe fixed connection.
Preferably, the driving structure comprises a servo motor, a first bevel gear and a second bevel gear, the servo motor is fixedly connected to the top of the cylinder cover, the first bevel gear is fixedly installed on an output shaft of the servo motor, the second bevel gear is fixedly sleeved on the outer side of the vertical pipe, and the first bevel gear is meshed with the second bevel gear.
Preferably, filtration includes round bar, filter, sealing washer and clearance brush, and the fixed cover of sealing washer is established in the outside of filter, and the sealing washer is laminated with the inner wall of a dust removal section of thick bamboo, and the round bar rotates the central point who installs at the filter and puts, and clearance brush fixed mounting is in the bottom of round bar, the bottom contact of clearance brush and filter, the bottom fixed mounting of round bar and perpendicular pipe.
Preferably, two lifting motors are symmetrically and fixedly mounted on the outer side of the dust removing cylinder, welding blocks are fixedly mounted on output shafts of the two lifting motors, and the two welding blocks are fixedly connected with the cylinder cover.
Preferably, the outer side of the dust removing cylinder is fixedly connected with a fan, and an air inlet of the fan is communicated with the dust removing cylinder through a same exhaust pipe.
Compared with the prior art, the utility model has the advantages of:
(1) according to the scheme, air inlet and air suction are started through the fan, so that negative pressure is formed inside the dust removing cylinder, dust gas can be sucked into the dust removing cylinder through air suction of the air inlet pipe, dust is filtered through the filter plate, the filtered gas is discharged through the exhaust pipe and the fan, and the dust blocked by the filter plate falls into the conical body and is discharged through the blow-off pipe;
(2) when the interior of the dust removing cylinder needs to be cleaned, cleaning water is conveyed into the water receiving disc by the water pump through the metal pipe, the cleaning water is guided into the vertical pipe and the connecting pipes by the switching pipe, the cleaning water is discharged through the plurality of spray heads to wash the inner wall of the dust removing cylinder, the servo motor drives the vertical pipe to rotate, the vertical pipe drives the two inner wall cleaning rods to do annular motion through the four connecting pipes to scrub the inner wall of the dust removing cylinder, the vertical pipe drives the cleaning brush to rotate through the round rod to clean the bottom of the filter plate, and the filter plate is convenient to clean;
(3) can drive two cover upward movement through two elevator motor, the cover can drive vertical pipe, two inner wall cleaning rods and filter and take out from a dust removal section of thick bamboo, can conveniently carefully wash or change.
The utility model discloses be convenient for carry out the inside clearance of a dust removal section of thick bamboo, avoid the manual work to clear up, practiced thrift time and manpower.
Drawings
FIG. 1 is a schematic structural view of a conveniently cleaned dust collector;
FIG. 2 is a schematic side view of a conveniently cleaned dust collector;
fig. 3 is a schematic perspective view of a filter plate, a sealing ring and a round bar of the crushing dust collector convenient for cleaning according to the present invention.
In the figure: 1 dust removal cylinder, 2 air inlet pipes, 3 cones, 4 blow-off pipes, 5 cylinder covers, 6 vertical pipes, 7 servo motors, 8 switching pipes, 9 water receiving discs, 10 water pumps, 11 connecting pipes, 12 inner wall cleaning rods, 13 spray heads, 14 round rods, 15 cleaning brushes, 16 filter plates, 17 sealing rings, 18 exhaust pipes, 19 fans, 20 metal pipes, 21 lifting motors and 22 welding blocks.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.
Example one
Referring to fig. 1-3, a crushing dust collector convenient for cleaning comprises a dust collecting barrel 1, an air inlet pipe 2 is communicated with one side of the dust collecting barrel 1, a conical body 3 is communicated with the bottom of the dust collecting barrel 1, a blow-off pipe 4 is arranged at the bottom of the conical body 3, a blow-off valve is arranged on the blow-off pipe 4, clean sewage can be discharged through the blow-off pipe 4, a barrel cover 5 is arranged at the top of the dust collecting barrel 1, a vertical pipe 6 is vertically and rotatably arranged at the top of the barrel cover 5, a water supply structure and a driving structure are arranged at the top of the barrel cover 5, the water supply structure and the driving structure are both connected with the vertical pipe 6, four connecting pipes 11 are fixedly arranged at the outer side of the vertical pipe 6, two inner wall cleaning rods 12 are slidably connected on the inner wall of the dust collecting barrel 1, the inner wall cleaning rods 12 are fixedly connected with the corresponding two connecting pipes 11, a, the bottom of the vertical tube 6 is connected with a filtering structure.
In this embodiment, water supply structure includes water pump 10, tubular metal resonator 20, water collector 9 and switching pipe 8, water pump 10 fixed connection is at the top of cover 5, the one end of tubular metal resonator 20 is connected with water pump 10's delivery port, the other end of tubular metal resonator 20 and the fixed intercommunication of water collector 9, switching pipe 8 rotates the bottom of connecting at water collector 9, vertical pipe 6 and switching pipe 8 fixed connection, water pump 10 sends into water collector 9 through tubular metal resonator 20 in with clean water, in leading-in vertical pipe 6 of clean water and connecting pipe 11 through switching pipe 8.
In this embodiment, the driving structure includes a servo motor 7, a first bevel gear and a second bevel gear, the servo motor 7 is fixedly connected to the top of the barrel cover 5, the first bevel gear is fixedly mounted to an output shaft of the servo motor 7, the second bevel gear is fixedly mounted to the outer side of the vertical pipe 6, the first bevel gear is engaged with the second bevel gear, and the servo motor 7 drives the vertical pipe 6 to rotate through the first bevel gear and the second bevel gear.
In this embodiment, the filtration includes round bar 14, the filter 16, sealing washer 17 and cleaning brush 15, sealing washer 17 fixed cover is established in the outside of filter 16, sealing washer 17 and the inner wall laminating of a dust removal section of thick bamboo 1, round bar 14 rotates the central point who installs at filter 16 and puts, 15 fixed mounting in the bottom of round bar 14 of cleaning brush, cleaning brush 15 and filter 16's bottom contact, round bar 14 and vertical pipe 6's bottom fixed mounting, vertical pipe 6 drives the rotatory bottom of cleaning brush 15 to filter 16 through round bar 14 and clears up, sealing washer 17 can increase filter 16's frictional force and play sealed effect with the inner wall laminating of a dust removal section of thick bamboo 1.
In this embodiment, the outside symmetry fixed mounting of a dust removal section of thick bamboo 1 has two elevator motor 21, and equal fixed mounting has welding piece 22 on two elevator motor 21's the output shaft, and two welding pieces 22 all with 5 fixed connection of cover, can drive two covers 5 upward movements through two elevator motor 21, and cover 5 can drive vertical pipe 6, two inner wall cleaning rods 12 and filter 16 and take out from a dust removal section of thick bamboo 1, can conveniently carefully wash or change.
In this embodiment, the outside fixedly connected with fan 19 of dust removal section of thick bamboo 1, the intercommunication has same blast pipe 18 between the air inlet of fan 19 and the dust removal section of thick bamboo 1, and fan 19 starts to admit air and breathes in for the inside negative pressure that forms of dust removal section of thick bamboo 1 inhales through intake pipe 2 can inhale dust gas in the dust removal section of thick bamboo 1.
Example two
Referring to fig. 1-3, a crushing dust collector convenient for cleaning comprises a dust collecting barrel 1, an air inlet pipe 2 is communicated with one side of the dust collecting barrel 1, a conical body 3 is communicated with the bottom of the dust collecting barrel 1, a blow-off pipe 4 is arranged at the bottom of the conical body 3, a blow-off valve is arranged on the blow-off pipe 4, clean sewage can be discharged through the blow-off pipe 4, a barrel cover 5 is arranged at the top of the dust collecting barrel 1, a vertical pipe 6 is vertically and rotatably installed at the top of the barrel cover 5 through a bearing, a water supply structure and a driving structure are arranged at the top of the barrel cover 5, the water supply structure and the driving structure are both connected with the vertical pipe 6, four connecting pipes 11 are fixedly installed at the outer side of the vertical pipe 6 through welding, two inner wall cleaning rods 12 are slidably connected on the inner wall of the dust collecting barrel 1, the inner wall cleaning rods 12 are fixedly connected with the corresponding two connecting pipes 11 through screws, the spray head 13 can be replaced and the bottom of the vertical pipe 6 is connected with a filtering structure.
In this embodiment, water supply structure includes water pump 10, tubular metal resonator 20, water collector 9 and switching pipe 8, water pump 10 passes through screw fixed connection at the top of cover 5, the one end of tubular metal resonator 20 is connected with water pump 10's delivery port, the other end and the fixed intercommunication of water collector 9 of tubular metal resonator 20, switching pipe 8 rotates the bottom of connecting at water collector 9, vertical pipe 6 passes through screw fixed connection with switching pipe 8, water pump 10 sends into cleaning water into in water collector 9 through tubular metal resonator 20, in leading-in vertical pipe 6 of cleaning water and connecting pipe 11 through switching pipe 8.
In this embodiment, the driving structure includes a servo motor 7, a first bevel gear and a second bevel gear, the servo motor 7 is fixedly connected to the top of the barrel cover 5 through screws, the first bevel gear is fixedly mounted to an output shaft of the servo motor 7 through welding, the second bevel gear is fixedly sleeved to the outer side of the vertical pipe 6, the first bevel gear is engaged with the second bevel gear, and the servo motor 7 drives the vertical pipe 6 to rotate through the first bevel gear and the second bevel gear.
In this embodiment, the filtration includes round bar 14, the filter 16, sealing washer 17 and cleaning brush 15, sealing washer 17 fixed cover is established in the outside of filter 16, sealing washer 17 and the laminating of the inner wall of a dust removal section of thick bamboo 1, round bar 14 passes through the bearing and rotates the central point who installs at filter 16 and puts, cleaning brush 15 passes through welded fastening and installs the bottom at round bar 14, cleaning brush 15 and filter 16's bottom contact, round bar 14 passes through welded fastening with vertical pipe 6's bottom and installs, vertical pipe 6 drives the rotatory bottom of cleaning brush 15 to filter 16 through round bar 14 and clears up, sealing washer 17 can increase filter 16's frictional force and play sealed effect with the laminating of the inner wall of a dust removal section of thick bamboo 1.
In this embodiment, two elevator motor 21 are installed through welded fastening to the outside symmetry of a dust removal section of thick bamboo 1, all install welding piece 22 through welded fastening on two elevator motor 21's the output shaft, two welding piece 22 all pass through screw fixed connection with cover 5, can drive two covers 5 through two elevator motor 21 and move upwards, cover 5 can drive vertical pipe 6, two inner wall cleaning rods 12 and filter 16 take out from a dust removal section of thick bamboo 1, can conveniently carefully wash or change.
In this embodiment, the outside of a dust removal section of thick bamboo 1 is through screw fixedly connected with fan 19, and the intercommunication has same blast pipe 18 between the air inlet of fan 19 and the dust removal section of thick bamboo 1, and fan 19 starts to admit air and breathes in for the inside negative pressure that forms of dust removal section of thick bamboo 1 inhales through intake pipe 2 and can inhale dust gas in the dust removal section of thick bamboo 1.
In the embodiment, when the device is used, all electrical equipment is switched on, the air inlet pipe 2 is connected with an exhaust port of a crusher or air inlet and air suction is started through the fan 19, so that negative pressure is formed inside the dust removing cylinder 1, dust gas can be sucked into the dust removing cylinder 1 through the air inlet pipe 2, dust is filtered through the filter plate 16, the filtered gas is discharged through the exhaust pipe 18 and the fan 19, dust blocked by the filter plate 16 falls into the cone 3 and is discharged through the blow-off pipe 4, when the inside of the dust removing cylinder 1 needs to be cleaned, the servo motor 7 and the water pump 10 are started, the water pump 10 sends cleaning water into the water receiving disc 9 through the metal pipe 20, the cleaning water is guided into the vertical pipe 6 and the connecting pipe 11 through the adapter pipe 8, the cleaning water is discharged through the plurality of spray heads 13 to wash the inner wall of the dust removing cylinder 1, the servo motor 7 is started, the servo motor 7 drives the vertical pipe 6 to rotate through the first bevel gear and the second, perpendicular pipe 6 drives two inner wall cleaning rods 12 through four connecting pipes 11 and is the annular motion and scrub the inner wall of a dust removal section of thick bamboo 1, perpendicular pipe 6 drives the bottom of cleaning brush 15 rotation to filter 16 through round bar 14 and clears up, it is convenient to clear up filter 16, clear sewage can be discharged through blow off pipe 4, the back is accomplished in the clearance, stop water pump 10 and servo motor 7 can, can drive two covers 5 upward movements through two elevator motor 21, cover 5 can drive perpendicular pipe 6, two inner wall cleaning rods 12 and filter 16 take out from a dust removal section of thick bamboo 1, can conveniently carefully wash or change, all structures in this application all can carry out the selection of material and length according to the in-service use condition, the drawing is the signal structure picture, concrete actual dimension can make appropriate adjustment.
The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.
Claims (6)
1. A crushing dust remover convenient to clean comprises a dust removing cylinder (1), wherein one side of the dust removing cylinder (1) is communicated with an air inlet pipe (2), the bottom of the dust removing cylinder (1) is communicated with a conical body (3), the bottom of the conical body (3) is provided with a blow-off pipe (4), the blow-off pipe (4) is provided with a blow-off valve, the crushing dust remover is characterized in that the top of the dust removing cylinder (1) is provided with a cylinder cover (5), the top of the cylinder cover (5) is vertically and rotatably provided with a vertical pipe (6), the top of the cylinder cover (5) is provided with a water supply structure and a driving structure, the water supply structure and the driving structure are both connected with the vertical pipe (6), the outer side of the vertical pipe (6) is fixedly provided with four connecting pipes (11), the inner wall of the dust removing cylinder (1) is slidably connected with two inner wall cleaning rods (12), and the inner wall cleaning rods, the outer sides of the four connecting pipes (11) and the vertical pipe (6) are in threaded connection with a plurality of spray heads (13), and the bottom of the vertical pipe (6) is connected with a filtering structure.
2. The crushing dust remover convenient for cleaning as claimed in claim 1, wherein the water supply structure comprises a water pump (10), a metal pipe (20), a water pan (9) and an adapter pipe (8), the water pump (10) is fixedly connected to the top of the cylinder cover (5), one end of the metal pipe (20) is connected to a water outlet of the water pump (10), the other end of the metal pipe (20) is fixedly communicated with the water pan (9), the adapter pipe (8) is rotatably connected to the bottom of the water pan (9), and the vertical pipe (6) is fixedly connected to the adapter pipe (8).
3. The easy-to-clean crushing and dust removing device of claim 1, wherein the driving structure comprises a servo motor (7), a first bevel gear and a second bevel gear, the servo motor (7) is fixedly connected to the top of the barrel cover (5), the first bevel gear is fixedly installed with an output shaft of the servo motor (7), the second bevel gear is fixedly installed on the outer side of the vertical pipe (6), and the first bevel gear is meshed with the second bevel gear.
4. The easy-to-clean crushing and dust removing device of claim 1, wherein the filtering structure comprises a round rod (14), a filtering plate (16), a sealing ring (17) and a cleaning brush (15), the sealing ring (17) is fixedly sleeved on the outer side of the filtering plate (16), the sealing ring (17) is attached to the inner wall of the dust removing cylinder (1), the round rod (14) is rotatably installed at the central position of the filtering plate (16), the cleaning brush (15) is fixedly installed at the bottom end of the round rod (14), the cleaning brush (15) is in contact with the bottom of the filtering plate (16), and the round rod (14) is fixedly installed at the bottom end of the vertical pipe (6).
5. The easy-to-clean crushing and dust removing device of claim 1, wherein two lifting motors (21) are symmetrically and fixedly installed on the outer side of the dust removing cylinder (1), welding blocks (22) are fixedly installed on output shafts of the two lifting motors (21), and the two welding blocks (22) are fixedly connected with the cylinder cover (5).
6. The easy-to-clean crushing dust collector as claimed in claim 1, wherein a fan (19) is fixedly connected to the outer side of the dust collection cylinder (1), and the same exhaust pipe (18) is communicated between the air inlet of the fan (19) and the dust collection cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022226659.2U CN213467166U (en) | 2020-10-09 | 2020-10-09 | Crushing dust remover convenient to wash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022226659.2U CN213467166U (en) | 2020-10-09 | 2020-10-09 | Crushing dust remover convenient to wash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213467166U true CN213467166U (en) | 2021-06-18 |
Family
ID=76364812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022226659.2U Expired - Fee Related CN213467166U (en) | 2020-10-09 | 2020-10-09 | Crushing dust remover convenient to wash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213467166U (en) |
-
2020
- 2020-10-09 CN CN202022226659.2U patent/CN213467166U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109173532A (en) | A kind of electric automatization cleaner | |
| CN110721536A (en) | A dust remover and dust remover ash removal device for aluminium is polished | |
| CN109499192A (en) | A kind of powder purification apparatus for building | |
| CN104001384A (en) | Bag-type dust collector | |
| CN216726320U (en) | Cleaner suitable for air compressor machine air filter | |
| CN207838511U (en) | A kind of air box impulse bag filter | |
| CN112439269B (en) | Remove and spray abluent oil mist purifier | |
| CN213467166U (en) | Crushing dust remover convenient to wash | |
| CN106669315B (en) | Filter cartridge type welds fume and dust device | |
| CN209809768U (en) | Workshop welding waste gas purification device | |
| CN210021581U (en) | Waste gas treatment air inlet unit | |
| CN201969448U (en) | Dust remover with cleaning device | |
| CN206240237U (en) | A kind of noise reduction type welds cigarette processing equipment | |
| CN216630057U (en) | Telescopic dust removal mechanism for coal breaker | |
| CN212020997U (en) | Dust collecting equipment for composite plate spring processing production line | |
| CN209124525U (en) | A kind of novel Chinese medicine dust-extraction unit | |
| CN211384187U (en) | Dust removal filter equipment | |
| CN209886341U (en) | Automatic cleaner | |
| CN216173227U (en) | Dry-wet composite electric precipitation equipment | |
| CN220609624U (en) | Air filtering device of pneumatic monorail crane | |
| CN212214995U (en) | Dust collector is used in production of heat preservation building material | |
| CN213643447U (en) | From taking cleaning function ground desulphurization unit | |
| CN213940602U (en) | Handheld energy-saving dust collector | |
| CN217829344U (en) | Novel dust remover device | |
| CN214513582U (en) | Dry dust recovery device with spraying function |
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: 20210618 |