CN113948232A - Shielding bin of radioactive source tank - Google Patents
Shielding bin of radioactive source tank Download PDFInfo
- Publication number
- CN113948232A CN113948232A CN202111210976.8A CN202111210976A CN113948232A CN 113948232 A CN113948232 A CN 113948232A CN 202111210976 A CN202111210976 A CN 202111210976A CN 113948232 A CN113948232 A CN 113948232A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- source tank
- shielding
- shielding box
- radioactive source
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
- G21F5/14—Devices for handling containers or shipping-casks, e.g. transporting devices loading and unloading, filling of containers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention discloses a radioactive source tank shielding bin, which comprises: the device comprises a shielding box, a rotating oil cylinder, a rotary table bracket, a support frame, a lifting oil cylinder and a source tank tray, wherein the shielding box is fixedly connected in a vehicle storage bin; when the rotary oil cylinder does reciprocating piston motion in the horizontal plane, the rotary disc support is driven to swing in a reciprocating mode so as to drive the support frame to move out of the inlet and outlet of the tank body of the shielding box, and the lifting oil cylinder does vertical motion to drive the source tank tray to lift and lower the radioactive source tank; the invention reduces the time of the operator contacting the radioactive source tank, reduces the difficulty of loading and unloading, protects the safety of the equipment and reduces the health risk of the operator.
Description
Technical Field
The invention belongs to the technical field of oil field well logging, and particularly relates to a shielding bin of a radioactive source tank.
Background
In the oil field well logging process, a petroleum well logging instrument vehicle is used as a well logging source tank transportation tool, wherein the petroleum well logging instrument vehicle comprises a radioactive source tank for the petroleum well logging instrument. The storage, transport and use of the radioactive source canister is particularly important because the radioactive source canister has strong radioactivity. The radioactive source tank is usually stored at the rear side of the petroleum logging instrument vehicle, and when the radioactive source tank is used, because the radioactive source tank is high in mass, a single person or even two persons cannot easily take out the radioactive source tank and put the radioactive source tank back, and in addition, the radioactive source tank has certain radiation risks and is required to be distributed and recovered as fast as possible so as to ensure that the contact time of an operator is as short as possible. Therefore, the difficulty of taking and placing and the short-time contact form a contradiction which is difficult to reconcile; therefore, a simple, fast and efficient device is needed to solve this practical problem.
Disclosure of Invention
The invention provides a radioactive source tank shielding bin, which comprises: the device comprises a shielding box, a rotating oil cylinder, a rotary table support, a support frame, a lifting oil cylinder and a source tank tray, wherein the shielding box is rectangular and is fixedly connected in a vehicle storage bin; the fixed part is fixedly connected with the bottom of the shielding box, the rotating part is fixedly connected with the vertical rod and coaxially rotates with the vertical rod, the fixed part of the rotating oil cylinder is fixedly connected with the shielding box, the piston head of the rotating oil cylinder is hinged to the outer circumference of the rotating part, the horizontal rod is connected with the upper edge of the supporting frame, the bottom of the supporting frame is connected with the upper end of the lifting oil cylinder, the lower end of the lifting oil cylinder is connected with the source tank tray, and the supporting frame is opposite to the inlet and outlet of the tank body; when the rotating oil cylinder does reciprocating piston motion in the horizontal plane, the horizontal rod is driven to swing back and forth so as to drive the support frame to move out of or into the inlet and outlet of the tank body of the shielding box, and the lifting oil cylinder does vertical motion to drive the source tank tray to be lowered or lifted.
Preferably, the lifting oil cylinder is a multi-stage oil cylinder; the multistage oil cylinder is convenient to enlarge the lifting stroke of the source tank tray, so that the radiation source tank can be conveniently placed on the ground to adapt to different environments, and operators can move the radiation source tank directly.
Preferably, a hydraulic control device is further arranged in the shielding box and is hydraulically connected with the rotating oil cylinder and the lifting oil cylinder.
Preferably, an electric appliance control device is further arranged in the shielding box, and the electric appliance control device is electrically connected with the hydraulic control device.
Preferably, a source tank stopping locking ring is arranged on the source tank tray and used for fixing the radioactive source tank on the source tank tray, and the radioactive source tank is in danger of generating horizontal displacement during transportation and lifting.
Preferably, the connection mode of the horizontal rod connecting with the support frame is a twisted support connection; the hinge support connection mode is beneficial to driving the source tank tray and the radioactive source tank to translate without rotating when the support frame is in and out.
Preferably, a locking device is arranged between the rotating part and the fixing part and used for locking the rotary table and the rotary table bracket when a vehicle is transferred, so that external force for rotating the oil cylinder is reduced, the service life of the rotating oil cylinder is prolonged, and the transfer safety of the radiation source tank is guaranteed.
The invention has the beneficial effects that:
1. according to the invention, the automatic loading and unloading of the radioactive source tank are realized by adopting the combined action of mechanical hydraulic pressure and an electric appliance, field operators only need to move the radioactive source tank out of and into the horizontal bottom surface, the rest lifting loading and unloading are completed by equipment, and the loading and unloading can be completed by a single person in a short time, so that the time of contacting the radioactive source tank by the operators is reduced, the loading and unloading difficulty is reduced, the safety of the equipment is protected, and the health risk of the operators is reduced.
2. The invention adopts the hydraulic drive and the electric device to drive, and the direct current or the battery of the vehicle provides energy at any time, therefore, the invention is convenient to install and use, is not limited by excessive external conditions, and is suitable for the vehicle installation using the radioactive source tank in various geological prospecting and oil drilling logging.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a top view of a shielding bin structure of a radiation source canister;
fig. 2 is a front view.
In the figure, 1, a shielding box; 2. rotating the oil cylinder; 3. a turntable; 4. a turntable support; 5. a support frame; 6. a lift cylinder; 7. a source tank tray; 8. an inlet and an outlet of the tank body; 9. a hydraulic control device; 10. an electric appliance control device; 301. a rotating part; 302. a fixed part; 303. a locking device; 401. a horizontal bar; 402. a vertical rod; 701, performing heat treatment on the mixture; the source tank stops the lock ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
As shown in fig. 1-2, a radiation source canister shielding bin of the present invention comprises: the device comprises a shielding box 1, a rotating oil cylinder 2, a rotary table 3, a rotary table support 4, a support frame 5, a lifting oil cylinder 6 and a source tank tray 7, wherein the shielding box 1 is rectangular, the shielding box 1 is fixedly connected in a vehicle storage bin, a tank body inlet and outlet 8 is arranged on the outer side of the shielding box 1, the rotary table 3 is of a disc-shaped upper-lower double-layer structure, a rotating part 301 is arranged on the upper side of the rotary table 3, a fixing part 302 is arranged on the lower side of the rotary table 3, the rotating part 301 rotates circumferentially around the fixing part 302 in a horizontal plane, the rotary table support 4 is L-shaped, a horizontal rod 401 of the rotary table support 4 is positioned at the upper end of a vertical rod 402, the rotating oil cylinder 2 performs reciprocating piston motion in the horizontal plane, and the lifting oil cylinder 6 performs vertical motion; the fixed part 302 is fixedly connected with the bottom of the shielding box 1, the rotating part 301 is fixedly connected with the vertical rod 402 and rotates coaxially with the vertical rod 402, the fixed part of the rotating oil cylinder 2 is fixedly connected with the shielding box 1, the piston head of the rotating oil cylinder 2 is hinged to the outer circumference of the rotating part 301, the horizontal rod 401 is connected with the upper edge of the supporting frame 5, the bottom of the supporting frame 5 is connected with the upper end of the lifting oil cylinder 6, the lower end of the lifting oil cylinder 6 is connected with the source tank tray 7, and the supporting frame 5 is opposite to the inlet and outlet 8 of the tank body; when the rotary oil cylinder 2 does reciprocating piston motion in the horizontal plane, the horizontal rod 401 is driven to swing back and forth so as to drive the support frame 5 to move out or move into the tank body inlet and outlet 8 of the shielding box 1, and the lifting oil cylinder 6 does vertical motion to drive the source tank tray 7 to lower or lift.
Further, the lifting oil cylinder 6 is a multi-stage oil cylinder; the multistage oil cylinder is convenient to enlarge the lifting stroke of the source tank tray 7, so that the radiation source tank can be conveniently placed on the ground to adapt to different environments, and operators can move the radiation source tank directly.
Furthermore, a hydraulic control device 9 is further arranged in the shielding box 1, and the hydraulic control device 9 is hydraulically connected with the rotating oil cylinder 2 and the lifting oil cylinder 6.
Furthermore, an electrical control device 10 is further arranged in the shielding box 1, and the electrical control device 10 is electrically connected with the hydraulic control device 9.
Furthermore, a source tank stopping locking ring 701 is arranged on the source tank tray 7, and the source tank stopping locking ring 701 is used for fixing the radioactive source tank on the source tank tray 7 in a mode of transportation and danger of horizontal displacement of the radioactive source tank in the lifting process.
Furthermore, the connection mode of the horizontal rod 401 connected with the support frame 5 is a twisted-supported connection; the hinge connection mode is favorable for driving the source tank tray 7 and the radioactive source tank to translate without rotating when the support frame is in and out.
Furthermore, a locking device 303 is arranged between the rotating part 301 and the fixing part 302, and the locking device 303 is used for locking the turntable 3 and the turntable support 4 when the vehicle is transferred, so that the external force of the rotating oil cylinder 2 is reduced, the service life of the rotating oil cylinder 2 is prolonged, and the transfer safety of the radioactive source tank is ensured.
Examples
In this embodiment, when the radioactive source jar needs to be taken out, operating personnel when the radioactive source jar needs to be taken out, earlier stage work is all accomplished by mechanical hydraulic pressure and electrical apparatus part, only need through electrical apparatus controlling means 10 control hydraulic control device 9, then 2 pistons of rotation hydro-cylinder shrink, drive 3 clockwise turned angle of carousel, then 3 horizontal pole 401 swings of driving carousel support 4 of carousel, it is external that drive support frame 5 stretches out the automobile body from 8 levels of jar body access & exit, then lift cylinder 6 of 5 bottoms of support frame stretches out, it descends to ground level to drive source jar tray 7, then operating personnel walks into the radioactive source jar and takes out source jar tray 7 with the radioactive source jar fast and has accomplished the work of taking out of radioactive source jar.
When the radioactive source tank needs to be put back, the operation is just opposite, an operator can leave the radioactive source tank after putting the radioactive source tank on the source tank tray 7, all follow-up work is completed by mechanical hydraulic pressure and an electric appliance part, only the hydraulic control device 9 needs to be controlled by the electric appliance control device 10, then the lifting oil cylinder 6 at the bottom of the support frame 5 retracts to drive the source tank tray 7 to rise from the ground height to the height of the tank body inlet and outlet 8 of the shielding box 1, the piston of the rotating oil cylinder 2 extends out to drive the rotating disc 3 to rotate anticlockwise, then the rotating disc 3 drives the horizontal rod 401 of the rotating disc support 4 to swing to drive the support frame 5 to horizontally retract into the vehicle body from the tank body inlet and outlet 8, and the withdrawing work of the radioactive source tank is completed.
In conclusion, the radioactive source tank shielding bin disclosed by the invention has the advantages that the automatic loading and unloading of the radioactive source tank are realized by adopting the combined action of mechanical hydraulic pressure and an electric appliance, field operators only need to move the radioactive source tank out of and into the shielding bin from the height of the horizontal bottom surface, the rest lifting loading and unloading are completed by equipment and can be completed by a single person in a short time, the time for the operators to contact the radioactive source tank is shortened, the loading and unloading difficulty is reduced, the safety of the equipment is protected, and the health risk of the operators is reduced, so that the radioactive source tank shielding bin has a wide application prospect.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above examples are only for illustrating the technical solutions of the present invention, and are not to be construed as limiting the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A radioactive source tank shielding bin, comprising: a shielding box (1), a rotating oil cylinder (2), a turntable (3), a turntable bracket (4), a support frame (5), a lifting oil cylinder (6) and a source tank tray (7), the shielding box (1) is cuboid, the shielding box (1) is fixedly connected in the vehicle storage bin, the outer side of the shielding box (1) is provided with a tank body inlet and outlet (8), the turntable (3) is of a disc-shaped upper and lower double-layer structure, a rotating part (301) is arranged on the upper side of the turntable (3), a fixing part (302) is arranged on the lower side of the turntable (3), the rotating part (301) rotates around the fixing part (302) in a circle in a horizontal plane, the turntable support (4) is L-shaped, a horizontal rod (401) of the turntable support (4) is positioned at the upper end of the vertical rod (402), the rotating oil cylinder (2) makes reciprocating piston motion in a horizontal plane, and the lifting oil cylinder (6) makes vertical motion;
the fixed part (302) is fixedly connected with the bottom of the shielding box (1), the rotating part (301) is fixedly connected with the vertical rod (402) and rotates coaxially with the vertical rod (402), the fixed part of the rotating oil cylinder (2) is fixedly connected with the shielding box (1), the piston head of the rotating oil cylinder (2) is hinged to the outer circumference of the rotating part (301), the horizontal rod (401) is connected with the upper edge of the supporting frame (5), the bottom of the supporting frame (5) is connected with the upper end of the lifting oil cylinder (6), the lower end of the lifting oil cylinder (6) is connected with the source tank tray (7), and the supporting frame (5) is over against the tank body inlet and outlet (8);
when the rotary oil cylinder (2) does reciprocating piston motion in the horizontal plane, the horizontal rod (401) is driven to swing in a reciprocating mode to further drive the support frame (5) to move out or move into the tank body inlet and outlet (8) of the shielding box (1), and the lifting oil cylinder (6) does vertical direction motion to drive the source tank tray (7) to be lowered or lifted.
2. The source canister shielding bin according to claim 1, wherein the lift cylinder (6) is a multi-stage cylinder.
3. The radioactive source tank shielding bin as claimed in claim 1, wherein a hydraulic control device (9) is further arranged in the shielding box (1), and the hydraulic control device (9) is hydraulically connected with the rotating oil cylinder (2) and the lifting oil cylinder (6).
4. The radioactive source tank shielding bin as claimed in claim 3, wherein an electrical control device (10) is further arranged in the shielding box (1), and the electrical control device (10) is electrically connected with the hydraulic control device (9).
5. The radioactive source tank shielding bin according to claim 1, wherein a source tank stopping locking ring (701) is arranged on the source tank tray (7).
6. The radioactive source tank shielding bin as claimed in claim 1, wherein the horizontal rod (401) is connected with the support frame (5) in a hinged connection manner.
7. A source canister shielding cage according to claim 1, characterized in that a locking device (303) is provided between the rotating part (301) and the fixed part (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111210976.8A CN113948232B (en) | 2021-10-18 | 2021-10-18 | Radioactive source tank shielding bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111210976.8A CN113948232B (en) | 2021-10-18 | 2021-10-18 | Radioactive source tank shielding bin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113948232A true CN113948232A (en) | 2022-01-18 |
| CN113948232B CN113948232B (en) | 2023-05-16 |
Family
ID=79331292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111210976.8A Active CN113948232B (en) | 2021-10-18 | 2021-10-18 | Radioactive source tank shielding bin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113948232B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272349A (en) * | 1992-06-11 | 1993-12-21 | Perry Iii Hugh L | Source handling apparatus |
| US20050035310A1 (en) * | 2003-08-15 | 2005-02-17 | Drobnik Christopher D. | Radiation shielding container for radioactive sources |
| CN201984841U (en) * | 2011-02-22 | 2011-09-21 | 中国科学院高能物理研究所 | Radioactive source storage and motion device |
| CN105015400A (en) * | 2015-08-11 | 2015-11-04 | 东莞中子科学中心 | Compact heavy-load carrying system for target station basement |
| US20170154696A1 (en) * | 2015-11-30 | 2017-06-01 | Areva Inc. | Canister movement assembly for transfer, rotation, and/or inspection |
| CN107187761A (en) * | 2017-07-27 | 2017-09-22 | 深圳爱索特工业器材有限公司 | A kind of radiation-resource intelligent operating system and its application method |
| CN109534236A (en) * | 2018-11-27 | 2019-03-29 | 东莞理工学院 | A kind of jack up unit used under radiation environment |
| US20200126682A1 (en) * | 2017-04-17 | 2020-04-23 | Our United Corporation | Radioactive source removing and introducing tooling, smart cart and source removing and introducing system |
-
2021
- 2021-10-18 CN CN202111210976.8A patent/CN113948232B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272349A (en) * | 1992-06-11 | 1993-12-21 | Perry Iii Hugh L | Source handling apparatus |
| US20050035310A1 (en) * | 2003-08-15 | 2005-02-17 | Drobnik Christopher D. | Radiation shielding container for radioactive sources |
| CN201984841U (en) * | 2011-02-22 | 2011-09-21 | 中国科学院高能物理研究所 | Radioactive source storage and motion device |
| CN105015400A (en) * | 2015-08-11 | 2015-11-04 | 东莞中子科学中心 | Compact heavy-load carrying system for target station basement |
| US20170154696A1 (en) * | 2015-11-30 | 2017-06-01 | Areva Inc. | Canister movement assembly for transfer, rotation, and/or inspection |
| US20200126682A1 (en) * | 2017-04-17 | 2020-04-23 | Our United Corporation | Radioactive source removing and introducing tooling, smart cart and source removing and introducing system |
| CN107187761A (en) * | 2017-07-27 | 2017-09-22 | 深圳爱索特工业器材有限公司 | A kind of radiation-resource intelligent operating system and its application method |
| CN109534236A (en) * | 2018-11-27 | 2019-03-29 | 东莞理工学院 | A kind of jack up unit used under radiation environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113948232B (en) | 2023-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110509804A (en) | A kind of fixed device of the charging pipette tips of charging pile | |
| CN110470331A (en) | A kind of portable environment temporary detecting device | |
| CN113948232A (en) | Shielding bin of radioactive source tank | |
| US4224363A (en) | Motor jacking apparatus | |
| CN208631686U (en) | A kind of lift rotating equipment for LP gas cylinder | |
| CN108584799B (en) | Auxiliary device for electric power construction | |
| CN208520852U (en) | Placer is used in a kind of detection of grape wine | |
| CN206769808U (en) | A kind of mechanical drill carriage of coal mining | |
| CN104565688B (en) | Lifting type mobile roof support | |
| CN216657857U (en) | Bucket body equipment of rolling off production line | |
| CN208784924U (en) | A kind of department, gynemetrics multifunctional workstation | |
| CN211219292U (en) | Manufacturing equipment for conical seal head of chemical storage tank | |
| CN220130496U (en) | A partial shipment device for radiopharmaceutical | |
| RU175766U1 (en) | Installation for radiation treatment of objects with gamma radiation | |
| CN221004473U (en) | Lifting device suitable for reactor | |
| CN218174608U (en) | Equipment for packing is used in production of pellet of acting as go-between | |
| CN214989838U (en) | Hoisting framework for large-scale equipment | |
| CN211545739U (en) | Oil press spiral arm hangs | |
| CN218620167U (en) | Current transformer lifts by crane installation device | |
| CN207192733U (en) | A kind of jack-up unit firm banking device | |
| CN211687676U (en) | Pay-off is used in power cord processing of easy to assemble | |
| CN215471004U (en) | Mechanical maintenance reliability workstation | |
| CN212991795U (en) | Power maintenance equipment | |
| CN214086133U (en) | Cable production rack | |
| CN218988659U (en) | Small crane for conveying materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |