CN218716464U - Inorganic fireproof roller shutter wear-resistant device - Google Patents
Inorganic fireproof roller shutter wear-resistant device Download PDFInfo
- Publication number
- CN218716464U CN218716464U CN202222638307.7U CN202222638307U CN218716464U CN 218716464 U CN218716464 U CN 218716464U CN 202222638307 U CN202222638307 U CN 202222638307U CN 218716464 U CN218716464 U CN 218716464U
- Authority
- CN
- China
- Prior art keywords
- wall
- fixed connection
- curtain
- wall body
- loose axle
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model discloses an inorganic fire prevention roll up curtain wear resistant device relates to inorganic fire prevention roll up curtain technical field, including rolling up the curtain main part, roll up the curtain main part and cup joint in the inside of wall body, a lateral wall top that states the wall body is provided with the rectangle case, the inside of rectangle case is provided with the motor, one side of rectangle case is provided with the cylinder sleeve, the telescopic inside of cylinder is provided with the loose axle, one side of loose axle and one side fixed connection of motor, the below of loose axle is provided with the curtain cloth, the both sides of curtain cloth are provided with fixed plate, the inside with the opening case that cup joints of fixed plate. The utility model discloses a, the cooperation of dead lever, motor and loose axle has ensured the availability factor of device, adopts the cooperation of loose axle, wear-resisting sleeve and curtain cloth, reduces the curtain cloth wearing and tearing, satisfies people's demand, adopts the cooperation of runner and support column, through the cooperation of second screw, opening box and wall body, has ensured the stability of device to.
Description
Technical Field
The utility model relates to an inorganic fire prevention roll curtain technical field, concretely relates to inorganic fire prevention roll curtain wear resistant device.
Background
The inorganic fireproof rolling curtain is made of fireproof inorganic materials, is mainly formed by specially processing inorganic fireproof fibers, and has the functions of fire prevention, smoke prevention and heat insulation. The fire-proof rolling curtain made of said series of materials can completely meet the requirements of "fire-resisting integrity, heat-insulating property and smoke-proofing property".
Briefly introduce what the product is. The following problems exist in the prior art:
1. the inorganic fireproof rolling curtain has the problems that the door sheet rubs with the track when the inorganic fireproof rolling curtain runs up and down, the door sheet of the inorganic fireproof rolling curtain is easy to damage, and the fireproof material in the door sheet is exposed after the fireproof decorative cloth on the surface is damaged, so that the fireproof and heat insulation performance is influenced;
2. the inorganic fireproof rolling curtain has the problems that friction is generated between a rotating shaft and the curtain cloth when the inorganic fireproof rolling curtain is rolled, so that rolling is abnormal or rolling is slow, and the service life of the device is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an inorganic fireproof rolling curtain wear-resistant device, one of which aims to reduce friction and solve the problems that the door sheets rub with tracks when the inorganic fireproof rolling curtain moves up and down, the door sheets of the inorganic fireproof rolling curtain are easy to damage, and fireproof materials inside the door sheets are exposed after surface fireproof decorative cloth is damaged, thereby affecting the performance of fireproof and heat insulation; the other purpose is to solve the problem that the rolling is abnormal or slow when the rotating shaft and the cord fabric rub during rolling of the inorganic fireproof rolling curtain, so that the service life of the device is affected, thereby prolonging the service life and satisfying the use effect of people.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides an inorganic fire prevention roll of curtain anti-wear device, includes rolls up the curtain main part, it cup joints the inside at the wall body to roll up the curtain main part, a lateral wall top of wall body is provided with the rectangle case, the inside of rectangle case is provided with the motor, one side of rectangle case and a lateral wall fixed connection of wall body, one side of rectangle case is provided with the cylinder sleeve, a lateral wall and a lateral wall fixed connection of cylinder sleeve of rectangle case, one side fixed connection of cylinder sleeve's opposite side and wall body, the inside of cylinder sleeve is provided with the loose axle, one side of loose axle and one side fixed connection of motor, the below of loose axle is provided with the curtain cloth, the both sides of curtain cloth are provided with fixed plate, the inside wall of fixed plate and the lateral wall fixed connection of curtain cloth, cup joint of fixed plate and the inside of opening case.
The utility model discloses technical scheme's further improvement lies in: the bottom fixed mounting of motor has two dead levers, every the bottom of dead lever and the inside wall fixed connection of wall body, one side of motor and one side fixed connection of loose axle, the opposite side of loose axle is provided with the pivot, the inside wall of pivot and the lateral wall fixed connection of loose axle, the bottom of pivot is provided with the dead lever, the bottom lateral wall of pivot and a lateral wall fixed connection of dead lever, bottom one side of dead lever and the inside wall fixed connection of wall body.
Adopt above-mentioned technical scheme, the cooperation of dead lever, motor and loose axle in this scheme utilizes the position of the fixed motor of dead lever and loose axle, adopts motor fixed connection loose axle, and the motor rotates and takes the loose axle to rotate, improves the availability factor of device, satisfies people's demand.
The utility model discloses technical scheme's further improvement lies in: the novel curtain cloth anti-abrasion device is characterized in that anti-abrasion sleeves are arranged on two sides of the movable shaft, the outer side wall of each anti-abrasion sleeve is fixedly connected with the top end of the curtain cloth, three notches are formed in each anti-abrasion sleeve, a first screw is arranged inside each notch, and the inner side wall of each anti-abrasion sleeve is fixedly connected with the outer side wall of the movable shaft through the first screw.
By adopting the technical scheme, the movable shaft, the abrasion-resistant sleeve and the cord fabric are matched, the abrasion-resistant sleeve is fixedly connected with the cord fabric, and the abrasion-resistant sleeve is fixedly connected with the movable shaft, so that the cord fabric is driven to be wound on the abrasion-resistant sleeve when the movable shaft rotates, the winding and unwinding of the cord fabric are completed, the abrasion of the cord fabric is reduced, the use efficiency of the device is ensured, and the requirements of people are met.
The utility model discloses technical scheme's further improvement lies in: the utility model discloses a wall body, including opening case, runner, bolt, one side of opening case, opening case and the inside wall fixed connection of opening case, opening case cup joints inside one side of wall body, the both sides wall of opening case is provided with a plurality of support columns, every one side of support column and opening case's inside wall fixed connection, every the opposite side of support column is provided with the runner, the inside of runner is provided with the bolt, the outside wall of bolt and the inside wall fixed connection of runner, one side of bolt is provided with the nut, the bolt passes through the one end fixed connection of nut and support column.
Adopt above-mentioned technical scheme, the runner in this scheme and the cooperation of support column, support column and opening case fixed connection have ensured the stability of runner, and the runner passes through nut and bolt at the one end fixed connection of support column, and when the curtain cloth rolling or unreel, runner surface and curtain cloth surface contact reduce area of contact, improve life, and then reduce the friction, improve the availability factor of device.
The utility model discloses technical scheme's further improvement lies in: two second screws are arranged on two sides of the supporting column, each second screw is connected to one side inside the opening box in series, the other side of the second screw is connected to the inside of the wall body in a sleeved mode, and one side wall of the opening box is fixedly connected with the inner side wall of the wall body through the second screws.
By adopting the technical scheme, the second screws, the opening box and the wall body are matched, the opening box is fixed in the wall body through the second screws, a stable running track is provided for the curtain cloth, the curtain cloth is guaranteed to run up and down in the opening box, the stability of the device is guaranteed, the completeness of the device is further improved, and the requirements of people are met.
The utility model discloses technical scheme's further improvement lies in: the top end of the curtain cloth is fixedly connected with the movable shaft through the anti-wear sleeve, two sides of the curtain cloth are sleeved inside the wall body through the opening box, and the curtain cloth is movably connected with the inner side wall of the wall body through the opening box.
By adopting the technical scheme, the curtain cloth, the opening box and the movable shaft are matched, the curtain cloth is wound and unwound through the rotation of the movable shaft, the opening box stabilizes the running track of the curtain cloth, the curtain cloth is prevented from being misplaced when wound or unwound, the service efficiency of the device is improved, the abrasion is further reduced, and the requirements of people are met.
Owing to adopted above-mentioned technical scheme, the utility model discloses relative prior art, the technological progress who gains is:
1. the utility model provides an inorganic fire prevention roll curtain device that wear-resistants, adopt the dead lever, the cooperation of motor and loose axle, utilize the position of the fixed motor of dead lever and loose axle, and motor fixed connection loose axle, so the motor drives the loose axle when rotating and rotates, the availability factor of device has been ensured, adopt the loose axle, wear-resistant sleeve and the cooperation of curtain cloth, wear-resistant sleeve and curtain cloth fixed connection, and wear-resistant sleeve and loose axle fixed connection, make the loose axle drive the curtain cloth when rotating and twine on wear-resistant sleeve, the rolling of accomplishing the curtain cloth and unreel, reduce the curtain cloth wearing and tearing, satisfy people's demand.
2. The utility model provides an inorganic fire prevention roll curtain wear resistant device, adopt the cooperation of runner and support column, support column and opening box fixed connection, the stability of runner has been ensured, the runner passes through the one end fixed connection of nut and bolt at the support column, when the curtain cloth rolling or unreel, runner surface and curtain cloth surface contact, reduce area of contact, and then reduce the friction, and service life is prolonged, through the second screw, the cooperation of opening box and wall body, adopt the second screw to fix the opening box in the inside of wall body, steady orbit has been provided for the curtain cloth, guarantee curtain cloth operates from top to bottom in the opening box, the stability of device has been ensured to, further improve the completeness of device, satisfy people's demand.
Drawings
Fig. 1 is a perspective view of the structure of the present invention.
Fig. 2 is a schematic sectional view of the front view of the structure of the present invention.
Fig. 3 is a schematic side sectional view of the structural curtain cloth of the present invention.
Fig. 4 is another schematic cross-sectional view of the structural curtain of the present invention.
Fig. 5 is a schematic sectional view of the structural wear sleeve of the present invention.
In the figure: 1. a roller shutter main body; 11. a wall body; 2. a rectangular box; 21. a motor; 3. a cylindrical sleeve; 31. a movable shaft; 311. fixing the rod; 312. a rotating shaft; 32. an anti-wear sleeve; 321. a notch; 33. a first screw; 4. a cord fabric; 41. fixing the plate; 411. anti-abrasive disc; 42. an open box; 421. a support pillar; 422. a rotating wheel; 423. a nut; 424. a bolt; 425. a second screw.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-5, the utility model provides an inorganic fire prevention roll up curtain wear resistant device, including roll up curtain main part 1, roll up curtain main part 1 and cup joint in the inside of wall body 11, a lateral wall top of wall body 11 is provided with rectangle case 2, the inside of rectangle case 2 is provided with motor 21, one side of rectangle case 2 and a lateral wall fixed connection of wall body 11, one side of rectangle case 2 is provided with cylindrical sleeve 3, a lateral wall of rectangle case 2 and a lateral wall fixed connection of cylindrical sleeve 3, the opposite side of cylindrical sleeve 3 and one side fixed connection of wall body 11, the inside of cylindrical sleeve 3 is provided with loose axle 31, one side of loose axle 31 and one side fixed connection of motor 21, the below of loose axle 31 is provided with curtain cloth 4, the both sides of curtain cloth 4 are provided with fixed plate 41, the inside wall of fixed plate 41 and the lateral wall fixed connection of curtain cloth 4, the cup joint of fixed plate 41 and the inside of opening case 42.
Two dead levers 311 of bottom fixed mounting of motor 21, the bottom of every dead lever 311 and the inside wall fixed connection of wall body 11, one side of motor 21 and one side fixed connection of loose axle 31, the opposite side of loose axle 31 is provided with pivot 312, the inside wall of pivot 312 and the outside wall fixed connection of loose axle 31, the bottom of pivot 312 is provided with dead lever 311, the bottom outside wall of pivot 312 and a lateral wall fixed connection of dead lever 311, bottom one side of dead lever 311 and the inside wall fixed connection of wall body 11.
In this embodiment, the fixing rod 311, the motor 21 and the movable shaft 31 are matched, the motor 21 is used to fixedly connect the movable shaft 31, the fixing rod 311 is used to fix the positions of the motor 21 and the movable shaft 31, and the motor 21 rotates to drive the movable shaft 31 to rotate, so that the use efficiency of the device is improved, and the requirements of people are met.
Example 2
As shown in fig. 1-5, on the basis of embodiment 1, the utility model provides a technical solution: preferably, two sides of the movable shaft 31 are provided with anti-wear sleeves 32, the outer side wall of each anti-wear sleeve 32 is fixedly connected with the top end of the curtain cloth 4, the anti-wear sleeves 32 are provided with three notches 321, a first screw 33 is arranged inside each notch 321, the inner side wall of each anti-wear sleeve 32 is fixedly connected with the outer side wall of the movable shaft 31 through the first screw 33, the top end of the curtain cloth 4 is fixedly connected with the movable shaft 31 through the anti-wear sleeves 32, two sides of the curtain cloth 4 are sleeved inside the wall 11 through the opening box 42, and the curtain cloth 4 is movably connected with the inner side wall of the wall 11 through the opening box 42.
In this embodiment, the movable shaft 31, the wear-resistant sleeve 32 and the cord fabric 4 are matched, the wear-resistant sleeve 32 is fixedly connected with the cord fabric 4, and the wear-resistant sleeve 32 is fixedly connected with the movable shaft 31, so that the cord fabric 4 is driven to wind on the wear-resistant sleeve 32 when the movable shaft 31 rotates, the winding and unwinding of the cord fabric 4 are completed, the wear of the cord fabric 4 is reduced, the use efficiency of the device is ensured, and the requirements of people are met.
Example 3
As shown in fig. 1-5, on the basis of embodiment 1, the utility model provides a technical solution: preferably, the opening box 42 is sleeved inside one side of the wall body 11, two side walls of the opening box 42 are provided with supporting columns 421, one side of each supporting column 421 is fixedly connected with the inner side wall of the opening box 42, the other side of each supporting column 421 is provided with a rotating wheel 422, bolts 424 are arranged inside the rotating wheels 422, the outer side walls of the bolts 424 are fixedly connected with the inner side walls of the rotating wheels 422, nuts 423 are arranged on one sides of the bolts 424, and the rotating wheels 422 are fixedly connected with one ends of the supporting columns 421 through the nuts 423. Two second screws 425 are arranged on two sides of the supporting column 421, one side of each second screw 425 is connected in series inside the opening box 42, the other side of each second screw 425 is connected in series inside the wall body 11, and one side wall of the opening box 42 is fixedly connected with the inner side wall of the wall body 11 through the second screws 425.
In this embodiment, adopt the cooperation of runner 422 and support column 421, support column 421 and opening box 42 fixed connection, runner 422's stability has been ensured, runner 422 passes through nut 423 and bolt 424 at the one end fixed connection of support column 421, runner 422's stability has further been improved, service life is prolonged, reduce area of contact, and then reduce the friction, through second screw 425, opening box 42 and wall body 11's cooperation, adopt second screw 425 to fix opening box 42 in wall body 11's inside, stable orbit has been provided for curtain cloth 4, guarantee curtain cloth 4 moves from top to bottom in opening box 42, the stability of device has been ensured to, further improve the completeness of device, satisfy people's demand.
The working principle of the inorganic fire-proof rolling shutter wear-resisting device is described in detail below.
As shown in fig. 1-5, when in use, the motor 21, the movable shaft 31 and the fixed rod 311 are adopted to cooperate, the fixed rod 311 is used to fix the positions of the motor 21 and the movable shaft 31, and the motor 21 is fixedly connected with the movable shaft 31, so that the movable shaft 31 is driven to rotate when the motor 21 rotates, the use efficiency of the device is ensured, the movable shaft 31, the abrasion-resistant sleeve 32 and the curtain cloth 4 are adopted to cooperate, the abrasion-resistant sleeve 32 is fixedly connected with the curtain cloth 4, and the abrasion-resistant sleeve 32 is fixedly connected with the movable shaft 31, so that the curtain cloth 4 is driven to wind on the abrasion-resistant sleeve 32 when the movable shaft 31 rotates, the winding and unwinding of the curtain cloth 4 are completed, the abrasion of the curtain cloth 4 is reduced, the requirements of people are met, when the curtain cloth 4 is wound or unwound by adopting the cooperation of the rotating wheel 422 and the supporting column 421 and the opening box 42, the stability of the rotating wheel 422 is ensured, when the curtain cloth 4 is wound or unwound, the surface of the rotating wheel 422 is in contact with the surface of the second opening box 425 which is matched with the second screw, the second opening box 42, the curtain cloth 4 is further ensured to stably run, and the curtain cloth 4 is further improved, the inner wall body 11, and the curtain cloth 4 is further improved.
The present invention has been described in detail with reference to the above general description, but it will be apparent to one of ordinary skill in the art that modifications and improvements can be made to the invention. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.
Claims (6)
1. The utility model provides an inorganic fire prevention roll up curtain device of wear-resisting, is including rolling up curtain main part (1), roll up curtain main part (1) and cup joint in the inside of wall body (11), its characterized in that: the utility model discloses a curtain wall structure, including wall body (11), one side wall top of wall body (11) is provided with rectangle case (2), the inside of rectangle case (2) is provided with motor (21), one side of rectangle case (2) and a lateral wall fixed connection of wall body (11), one side of rectangle case (2) is provided with cylinder sleeve (3), a lateral wall of rectangle case (2) and a lateral wall fixed connection of cylinder sleeve (3), one side fixed connection of the opposite side of cylinder sleeve (3) and one side of wall body (11), the inside of cylinder sleeve (3) is provided with loose axle (31), one side of loose axle (31) and one side fixed connection of motor (21), the below of loose axle (31) is provided with curtain cloth (4), the both sides of curtain cloth (4) are provided with fixed plate (41), the inside wall and the lateral wall fixed connection of curtain cloth (4) of fixed plate (41), the cup joint of fixed plate (41) and the inside of opening case (42).
2. The inorganic fire-proof rolling shutter wear resistant device according to claim 1, wherein: the bottom fixed mounting of motor (21) has two dead levers (311), every the bottom of dead lever (311) and the inside wall fixed connection of wall body (11), one side of motor (21) and one side fixed connection of loose axle (31), the opposite side of loose axle (31) is provided with pivot (312), the inside wall of pivot (312) and the lateral wall fixed connection of loose axle (31), the bottom of pivot (312) is provided with dead lever (311), the bottom lateral wall of pivot (312) and a lateral wall fixed connection of dead lever (311), the inside wall fixed connection of bottom one side of dead lever (311) and wall body (11).
3. The inorganic fire-proof rolling shutter wear resistant device according to claim 2, wherein: two sides of the movable shaft (31) are provided with an anti-wear sleeve (32), the outer side wall of the anti-wear sleeve (32) is fixedly connected with the top end of the curtain cloth (4), the anti-wear sleeve (32) is provided with three notches (321), every the inside of notch (321) all is provided with first screw (33), wear-resisting sleeve (32)'s inside wall passes through first screw (33) and loose axle (31) lateral wall fixed connection.
4. The inorganic fire-proof rolling shutter wear resistant device according to claim 1, wherein: inside opening case (42) cup jointed in one side of wall body (11), the both sides wall of opening case (42) is provided with a plurality of support columns (421), every one side of support column (421) all with the inside wall fixed connection of opening case (42), every the opposite side of support column (421) all is provided with runner (422), the inside of runner (422) is provided with bolt (424), the lateral wall of bolt (424) and the inside wall fixed connection of runner (422), one side of bolt (424) is provided with nut (423), runner (422) is through the one end fixed connection of nut (423) and support column (421).
5. The inorganic fire-proof rolling shutter wear resistant device according to claim 4, wherein: two second screws (425) are arranged on two sides of the supporting column (421), one side of each second screw (425) is connected in series inside the opening box (42), the other side of the corresponding second screw (425) is connected inside the wall body (11) in a sleeved mode, and one side wall of the opening box (42) is fixedly connected with the inner side wall of the wall body (11) through the second screws (425).
6. The inorganic fire-proof rolling shutter wear resistant device according to claim 1, wherein: the top end of the curtain cloth (4) is fixedly connected with the movable shaft (31) through the anti-wear sleeve (32), two sides of the curtain cloth (4) are sleeved inside the wall body (11) through the opening box (42), and the curtain cloth (4) is movably connected with the inner side wall of the wall body (11) through the opening box (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222638307.7U CN218716464U (en) | 2022-10-09 | 2022-10-09 | Inorganic fireproof roller shutter wear-resistant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222638307.7U CN218716464U (en) | 2022-10-09 | 2022-10-09 | Inorganic fireproof roller shutter wear-resistant device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218716464U true CN218716464U (en) | 2023-03-24 |
Family
ID=85639142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222638307.7U Active CN218716464U (en) | 2022-10-09 | 2022-10-09 | Inorganic fireproof roller shutter wear-resistant device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218716464U (en) |
-
2022
- 2022-10-09 CN CN202222638307.7U patent/CN218716464U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8220520B2 (en) | Spring biased slide arrangement for anti-bow roller tube | |
| CA2509274C (en) | Anti-bow roller tube arrangement | |
| CN218716464U (en) | Inorganic fireproof roller shutter wear-resistant device | |
| CN208617016U (en) | A kind of finished product wind up roll for fabric compound machine | |
| US5819835A (en) | Roll-up divider | |
| AU650516B2 (en) | Compensating mechanism for variable speed roll-up door | |
| CN112047176B (en) | Prevent tortuous water conservancy construction of cable and use pipe laying pay-off | |
| CN212911005U (en) | Dual-motor-driven heat preservation quilt horizontal winding and unwinding device | |
| CN202020822U (en) | Structure of fire hydrant cabinet | |
| CN207615394U (en) | Reinforcing bar automatic discharging machine | |
| CN210140292U (en) | Waterproofing membrane coiling mechanism | |
| JP4805661B2 (en) | Switchgear | |
| CN208666647U (en) | A kind of nonwoven production leftover material recycling device | |
| CN206913878U (en) | A kind of composite material-feeding guiding mechanism | |
| CN221070324U (en) | Heavy canvas deviation preventing device for canvas gumming machine | |
| CN206645737U (en) | Handle type drive device and the drying system for possessing the handle type drive device | |
| CN206288790U (en) | A kind of machine of falling yarn | |
| CN211254567U (en) | Brake device for unwinding large paper roll | |
| CN215516140U (en) | Welding wire coiling mechanism | |
| CN211900392U (en) | Double track fire prevention rolling slats door | |
| CN209780709U (en) | Rolling shaft for rolling door | |
| JP2004293191A (en) | Winding spindle structure of opening and closing device | |
| CN212982105U (en) | Constant-tension soft surface layer uncoiler with multi-point air brake | |
| CN220299977U (en) | Cable delivery frame for electric wire erection | |
| CN219949910U (en) | Carrier roller for strip steel winding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |