CN105970895A - Self-lifting platform pile leg and lifting system - Google Patents
Self-lifting platform pile leg and lifting system Download PDFInfo
- Publication number
- CN105970895A CN105970895A CN201610361258.3A CN201610361258A CN105970895A CN 105970895 A CN105970895 A CN 105970895A CN 201610361258 A CN201610361258 A CN 201610361258A CN 105970895 A CN105970895 A CN 105970895A
- Authority
- CN
- China
- Prior art keywords
- spud leg
- bearing pin
- riser
- gear
- pin
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
- E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
- E02B2017/006—Platforms with supporting legs with lattice style supporting legs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a self-lifting platform pile leg and a lifting system. The pile leg comprises at least three chord members arranged vertically and a plurality of horizontal main supporting rods connected between the chord members. Each chord member comprises two vertical plates arranged oppositely in parallel, the two vertical plates are fixedly connected through connecting pieces, two rows of hinge pins are detachably arranged between the two vertical plates in the length direction of the vertical plates, the two ends of each hinge pin are located on the edges of the two vertical plates correspondingly, the hinge pins are perpendicular to the vertical plates, and every two adjacent hinge pins in each row of hinge pins are spaced by the identical distance. By arranging the two rows of detachable hinge pins on the two edges in the length direction of the vertical plates, arranged in parallel, of each chord member, and a climbing gear of a lifting unit of a self-lifting platform and the hinge pins are used in cooperation, so that lifting of the platform and lifting of the pile leg are achieved; when one of the multiple hinge pins is damaged, the damaged hinge pin can be replaced at any time, and using and maintenance are convenient; and the pile leg is easy to manufacture and low in manufacturing cost.
Description
Technical field
The present invention relates to jack-up unit technical field, particularly to a kind of jack-up unit spud leg and lifting system
System.
Background technology
Self-elevating ocean platform is a kind of important mobile platform, generally by platform structure, lifting unit, stake
The part composition such as lower limb, life building, helicopter deck, is the basic equipment of exploitation offshore oil.Wherein, stake
Lower limb is the main stressed member of jack-up unit, bears whole platform weight and operating load, conventional spud leg
Structure has circle or truss-like, owing to truss framed leg has rigidity greatly, and the advantages such as front face area is little, because of
This truss framed leg is widely used in the jack-up unit that operating water depth is deeper.
Use truss framed leg jack-up unit generally use pinion and-rack jacking system, if wherein spud leg by
The string pipe of dry band tooth bar and connecting rod composition, the string pipe of band tooth bar is by two symmetrical semi-circular tubes and is clipped in two
Rack-plate in the middle of semi-circular tube is welded；Jacking system is by motor or fluid motor-driven, through reducing gear
Driving pinion rotation, little gear engages with the rack-plate on spud leg, it is achieved lifting spud leg and hoistable platform merit
Energy.
Wherein, rack-plate is to first pass through the fixed structure that is welded on chord member after cutting polishing molding, therefore,
On rack-plate, once certain tooth is damaged, maintenance difficult, and maintenance cost is high.
Summary of the invention
In order to solve the problem of maintenance difficult when the tooth on the rack-plate of existing spud leg occurs to destroy, the present invention is real
Execute example and provide a kind of jack-up unit spud leg and jacking system.Described technical scheme is as follows:
The spud leg of a kind of jack-up unit, if described spud leg includes chord member and the involvement that at least three vertically arranges
The horizontal main supporting rod being connected between described chord member,
Each described chord member includes two risers being oppositely arranged in parallel, and said two riser is solid by connector
Fixed connection, between said two riser, the length direction along described riser is removably provided with two charge off axles, institute
The two ends stating bearing pin lay respectively on the edge of said two riser, and described bearing pin is perpendicular to described riser and sets
Putting, the distance between the described bearing pin that in bearing pin described in each column, any two is adjacent is equal.
Further, described riser being additionally provided with pin-and-hole, described bearing pin is rotating to be arranged in described pin-and-hole,
Described bearing pin is optical axis with the described pin-and-hole place of cooperation.
Further, described spud leg also includes nut and stop washer, and described bearing pin leads to after described pin-and-hole
Cross described nut and the locking of described stop washer.
Further, described spud leg also includes the auxiliary strut of some levels and hound, the auxiliary strut of described level two
End is separately fixed on two described horizontal main supporting rods, and one end of described hound is connected to described horizontal main brace
On bar, the other end of described hound is connected on described chord member.
Further, described connector is connecting plate, and described connecting plate is vertical along the length direction of described riser
It is connected to the middle part of said two riser.
Further, described spud leg includes that three described chord members, three described chord members are mutually equally spaced.
Further, described bearing pin is for using 40Cr steel to make.
The jacking system of a kind of jack-up unit, described jacking system includes that foregoing spud leg and lifting are single
Unit,
Described lifting unit includes: installing rack, gear-box and motor, and described gear-box is arranged on described installation
On frame, the input of described gear-box is in transmission connection with the outfan of described motor, and described gear-box is defeated
Go out end to be provided with and the described bearing pin meshed gears on described chord member.
Further, the distance between the module of described gear with adjacent two described bearing pins meets:
L=m* π, (wherein L is the distance between adjacent two described bearing pins, and m is the gear die of described gear
Number).
Further, it is additionally provided with brake unit in described motor.
The technical scheme that the embodiment of the present invention provides has the benefit that by parallel two of chord member
It is respectively provided with the dismountable bearing pin of string, by jack-up unit on two edges of the riser length direction arranged
The climbing gear of middle lifting unit and bearing pin with the use of, realize the lifting of platform and the lifting of spud leg, when
When a certain bearing pin damages, can change at any time, working service is convenient, and spud leg makes simple, low cost of manufacture.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
An embodiment, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic cross-section of the spud leg that the embodiment of the present invention provides；
Fig. 2 is the structural representation of the spud leg chord member that the embodiment of the present invention provides；
Fig. 3 is the front view of the spud leg that the embodiment of the present invention provides；
Fig. 4 is the structural representation of the jacking system that the embodiment of the present invention provides；
Fig. 5 is the structural representation of the jacking system lifting unit that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment is described in further detail.
Embodiments provide the spud leg of a kind of jack-up unit, be instead of by pin shaft structure original
The structure of rack-plate, the most easily manufactured, and the distance between bearing pin is easily accurately controlled, when certain bearing pin
When being damaged, can change at any time, working service is convenient.
Fig. 1 is the schematic cross-section of the spud leg that the embodiment of the present invention provides, and Fig. 2 is that the embodiment of the present invention provides
The structural representation of spud leg chord member, see Fig. 1 and Fig. 2, spud leg includes chord member 1 He of three vertical layouts
Some horizontal main supporting rods 2 being connected between chord member, every chord member 1 includes two risers being oppositely arranged in parallel
3, two risers 3 connect by connector 4 is fixing, and between two risers 3, the length direction along riser 3 can
Releasably being provided with two charge off axles 5, the two ends of bearing pin 5 lay respectively on the edge of two risers 3, and bearing pin 5
Being perpendicular to riser 3 arrange, the distance between the bearing pin 5 that in each column bearing pin 5, any two is adjacent is equal.
Can by being respectively provided with string on two edges of the two of chord member riser length directions be arrangeding in parallel
The bearing pin of dismounting, by the climbing gear of lifting unit in jack-up unit and bearing pin with the use of, realize putting down
The lifting of platform and the lifting of spud leg, when a certain bearing pin damages, can change at any time, and working service is convenient, and
Spud leg makes simple, low cost of manufacture.
Generally spud leg needs to weld rack-plate on chord member, and the precision of rack-plate upper rack is difficult to ensure that, and weldering
Connecing workload big, cost of manufacture is high, and once certain tooth damages, owing to rack-plate and chord member weld on rack-plate
Connect and formed fixing structure, therefore maintenance difficult, and use the spud leg that the present invention provides, by bearing pin generation
Replace the rack-plate on spud leg, eliminate the work of a large amount of welding, and can be according to jack-up unit when manufacturing
Distance between adjacent two bearing pins of the concrete Size calculation of climbing gear on lifting unit, according to the number calculated
Value, can output pin-and-hole accurately on riser, and precision is easily guaranteed that, makes simple, low cost, meanwhile,
When some bearing pin damages, can change at any time, working service is convenient.
It should be noted that in the present embodiment, spud leg includes three chord members, but is not limited to this, at it
In his embodiment, the quantity of chord member can also be four or more.
As in figure 2 it is shown, in the present embodiment, riser 3 is provided with pin-and-hole, and bearing pin 5 is rotating to be arranged on
In pin-and-hole, bearing pin 5 is optical axis with the pin-and-hole place of cooperation, and bearing pin 5 can rotate in pin-and-hole, and bearing pin instead of tooth
The structure of batten, engages with the climbing gear in the lifting unit of jack-up unit and is connected, therefore, when climbing
When gear moves on bearing pin 5, by the bearing pin 5 rotation in pin-and-hole, climbing gear and pin can be reduced
Frictional force between axle 5, improves the work efficiency of self-elevating platform up-down system.
Specifically, when bearing pin 5 is through after pin-and-hole, by be located at the thread segment of bearing pin 5 afterbody and nut 6 and
Stop washer 7 connects, and is fixed in pin-and-hole by bearing pin 5 by stop washer 7 and nut 6, such knot
Structure can make nut 6 not fall off with bearing pin 5 synchronous axial system.
As shown in figures 1 and 3, spud leg also includes the auxiliary strut of some levels 8 and hound 9, the auxiliary strut of level
8 two ends are separately fixed on two horizontal main supporting rods 2, and one end of hound 9 is connected on horizontal main supporting rod 2,
The other end of hound 9 is connected on chord member 1, is added between horizontal main supporting rod 2 by the auxiliary strut of level 8
Gu, will be reinforced between chord member 1 and horizontal main supporting rod 2 by hound 9, such structure can make spud leg
More stable, it is possible to the weight of carrying is more.
In the present embodiment, connector 4 is two pieces of connecting plates, and two pieces of connecting plates are along the length direction of riser 3
It is vertically connected on the middle part of two risers 3, between two pieces of connecting plates and riser 3, defines stable box knot
Structure, adds the intensity of chord member.
Specifically, bearing pin 5 uses 40Cr steel to make, and the bearing pin toughness using this steel to make is high and resistance to
Mill, service life is long, is hardly damaged.
Fig. 4 is the structural representation of the jacking system that the embodiment of the present invention provides, and sees Fig. 4, and the present invention implements
Example additionally provides the jacking system of a kind of jack-up unit, and this jacking system includes foregoing spud leg and liter
Fall unit,
As it is shown in figure 5, lifting unit includes: installing rack 10, gear-box 11 and motor 12, gear-box 11
Being arranged on installing rack 10, the input of gear-box 11 is in transmission connection with the outfan of motor 12, and gear
The outfan of case 11 is provided with the climbing gear 13 engaged with the bearing pin 5 on chord member 1.
Can by being respectively provided with string on two edges of the two of chord member riser length directions be arrangeding in parallel
The bearing pin of dismounting, by the climbing gear of lifting unit in jack-up unit and bearing pin with the use of, realize putting down
The lifting of platform and the lifting of spud leg, when a certain bearing pin damages, can change at any time, and working service is convenient, and
Spud leg makes simple, low cost of manufacture.
As it is shown in figure 5, the cross section of installing rack 10 is U-shaped, chord member 1 is placed in the opening of installing rack 10,
And two charge off axle 5 relative with installing rack 10 dual-side respectively, at vertical direction in the dual-side of installing rack 10
On be separately installed with several gear-boxes 11, the outfan of gear-box 11 is by climbing gear 13 and bearing pin 5
Engagement connects.
Further, the outfan at gear-box 11 includes front axle bearing sleeve 14 and rear axle bearing sleeve 15, installing rack
Be provided with front axle bearing bore and rear axle bearing bore on 10 the most accordingly, climbing gear 13 be arranged on front axle bearing sleeve 14 and after
Between bearing holder (housing, cover) 15, front axle bearing sleeve 14 is arranged in front axle bearing bore, and rear axle bearing sleeve 15 is arranged on rear axle bearing bore
In, and by flange arrangement, gear-box 11 is fixed on installing rack 10,.
Specifically, the distance between the module of climbing gear 13 with adjacent two bearing pins 5 meets:
L=m* π, (wherein L is the distance between adjacent two bearing pins, and m is the module of climbing gear).
When making spud leg, calculate the distance between adjacent two bearing pins according to the parameter of climbing gear, then vertical
Arranging corresponding pin-and-hole on plate, the spud leg precision so produced is higher, and the fitness of climbing gear and bearing pin is more
Good.
Preferably, in motor 12, it is additionally provided with brake unit, by the braking action of brake unit, it is possible to achieve
Spud leg and the locking of platform.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (10)
1. a spud leg for jack-up unit, described spud leg includes chord member that at least three vertically arranges and some
The horizontal main supporting rod being connected between described chord member, it is characterised in that
Each described chord member includes two risers being oppositely arranged in parallel, and said two riser is solid by connector
Fixed connection, between said two riser, the length direction along described riser is removably provided with two charge off axles, institute
The two ends stating bearing pin lay respectively on the edge of said two riser, and described bearing pin is perpendicular to described riser and sets
Putting, the distance between the described bearing pin that in bearing pin described in each column, any two is adjacent is equal.
Spud leg the most according to claim 1, it is characterised in that be additionally provided with pin-and-hole, institute on described riser
Stating that bearing pin is rotating to be arranged in described pin-and-hole, described bearing pin is optical axis with the described pin-and-hole place of cooperation.
Spud leg the most according to claim 2, it is characterised in that described spud leg also includes nut and stop
Packing ring, described bearing pin is locked by described nut and described stop washer after described pin-and-hole.
Spud leg the most according to claim 1, it is characterised in that described spud leg also includes that some levels are auxiliary
Strut and hound, described level auxiliary strut two ends are separately fixed on two described horizontal main supporting rods, described
One end of hound is connected on described horizontal main supporting rod, and the other end of described hound is connected to described chord member
On.
Spud leg the most according to claim 1, it is characterised in that described connector is connecting plate, described
Connecting plate is vertically connected on the middle part of said two riser along the length direction of described riser.
Spud leg the most according to claim 1, it is characterised in that described spud leg includes three described chord members,
Three described chord members are mutually equally spaced.
Spud leg the most according to claim 1, it is characterised in that described bearing pin uses 40Cr steel system
Become.
8. the jacking system of a jack-up unit, it is characterised in that described jacking system includes that right such as is wanted
Ask the spud leg described in any one of 1-7 and lifting unit,
Described lifting unit includes: installing rack, gear-box and motor, and described gear-box is arranged on described installation
On frame, the input of described gear-box is in transmission connection with the outfan of described motor, and described gear-box is defeated
Go out end to be provided with and the described bearing pin meshed gears on described chord member.
Jacking system the most according to claim 8, it is characterised in that the module of described gear with
Distance between adjacent two described bearing pins meets:
L=m* π, (wherein L is the distance between adjacent two described bearing pins, and m is the gear die of described gear
Number).
Jacking system the most according to claim 8, it is characterised in that be additionally provided with system in described motor
Dynamic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361258.3A CN105970895B (en) | 2016-05-26 | 2016-05-26 | A kind of jack-up unit spud leg and jacking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361258.3A CN105970895B (en) | 2016-05-26 | 2016-05-26 | A kind of jack-up unit spud leg and jacking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105970895A true CN105970895A (en) | 2016-09-28 |
| CN105970895B CN105970895B (en) | 2019-01-04 |
Family
ID=56956512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610361258.3A Active CN105970895B (en) | 2016-05-26 | 2016-05-26 | A kind of jack-up unit spud leg and jacking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105970895B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849763A (en) * | 2017-02-28 | 2017-06-13 | 武汉船用机械有限责任公司 | The control method and control device of a kind of hoistable platform |
| CN109183764A (en) * | 2018-08-29 | 2019-01-11 | 武汉船用机械有限责任公司 | The string phase calibration method of jack-up unit |
| CN109537559A (en) * | 2018-09-29 | 2019-03-29 | 武汉船用机械有限责任公司 | A kind of lifting device of English truss spud leg |
| CN114737548A (en) * | 2022-04-18 | 2022-07-12 | 中海石油(中国)有限公司 | Three-leg simple wellhead platform suitable for hundred-meter water depth |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2487775A1 (en) * | 1980-07-30 | 1982-02-05 | Brissonneau & Lotz | Retractable leg mechanism for offshore drilling platform - use rack and pinion drive with additional safety pinions and braking devices |
| CN1690315A (en) * | 2004-04-19 | 2005-11-02 | 中海石油研究中心 | Light-duty platform on the sea |
| CN103422482A (en) * | 2013-07-26 | 2013-12-04 | 江苏科技大学 | Splicing trussed type pile leg device |
| CN103821124A (en) * | 2014-01-21 | 2014-05-28 | 武汉船用机械有限责任公司 | Mounting rack used for pinion-and-rack platform lifting system |
| CN203684193U (en) * | 2014-01-13 | 2014-07-02 | 中国石油大学(华东) | Lifting mechanism for self-elevating drilling platform |
| US20150376856A1 (en) * | 2013-02-20 | 2015-12-31 | Overdick Gmbh & Co. Kg | Lifting Device For Offshore Platforms |
-
2016
- 2016-05-26 CN CN201610361258.3A patent/CN105970895B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2487775A1 (en) * | 1980-07-30 | 1982-02-05 | Brissonneau & Lotz | Retractable leg mechanism for offshore drilling platform - use rack and pinion drive with additional safety pinions and braking devices |
| CN1690315A (en) * | 2004-04-19 | 2005-11-02 | 中海石油研究中心 | Light-duty platform on the sea |
| US20150376856A1 (en) * | 2013-02-20 | 2015-12-31 | Overdick Gmbh & Co. Kg | Lifting Device For Offshore Platforms |
| CN103422482A (en) * | 2013-07-26 | 2013-12-04 | 江苏科技大学 | Splicing trussed type pile leg device |
| CN203684193U (en) * | 2014-01-13 | 2014-07-02 | 中国石油大学(华东) | Lifting mechanism for self-elevating drilling platform |
| CN103821124A (en) * | 2014-01-21 | 2014-05-28 | 武汉船用机械有限责任公司 | Mounting rack used for pinion-and-rack platform lifting system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849763A (en) * | 2017-02-28 | 2017-06-13 | 武汉船用机械有限责任公司 | The control method and control device of a kind of hoistable platform |
| CN109183764A (en) * | 2018-08-29 | 2019-01-11 | 武汉船用机械有限责任公司 | The string phase calibration method of jack-up unit |
| CN109537559A (en) * | 2018-09-29 | 2019-03-29 | 武汉船用机械有限责任公司 | A kind of lifting device of English truss spud leg |
| CN109537559B (en) * | 2018-09-29 | 2020-09-15 | 武汉船用机械有限责任公司 | Lifting device for triangular truss spud leg |
| CN114737548A (en) * | 2022-04-18 | 2022-07-12 | 中海石油(中国)有限公司 | Three-leg simple wellhead platform suitable for hundred-meter water depth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105970895B (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105970895A (en) | Self-lifting platform pile leg and lifting system | |
| CN103422482A (en) | Splicing trussed type pile leg device | |
| DE3115491A1 (en) | COMBINED WIND AND WAVE USE SYSTEM | |
| CN203863248U (en) | Welding table | |
| CN106013028A (en) | Ocean platform lifting device | |
| KR101189681B1 (en) | A support apparatus for sea wind power generator | |
| CN101555770A (en) | Crawler-type positive and negative circulation drilling machine | |
| CN203213088U (en) | Light composite structure pipe support type ocean platform | |
| CN103195040B (en) | A kind of light composite structure jacket type offshore platform | |
| CN104121337A (en) | Small tooth difference planet structure lifting gear case of self-elevating type ocean platform | |
| WO2014125114A1 (en) | Wind turbine comprising a gimbal-mounted tower | |
| CN103420288B (en) | Large-scale pile winding type offshore platform crane revolving platform | |
| CN103195660B (en) | A kind of pylon of truss structure | |
| CN201535019U (en) | Upper round and lower square cast steel node | |
| CN103806460B (en) | For the general-purpose construction platform that the large establishment of self-elevating drilling platform triangle spud leg is made | |
| CN203239867U (en) | Self-elevating ocean platform planetary-structure lifting gear case | |
| CN204175507U (en) | Small-sized assembled hydroelectric installation | |
| CN108149646A (en) | Door machine integrates dam | |
| CN207159979U (en) | A kind of structure strengthened for multifunctional platform lowering or hoisting gear | |
| CN208716716U (en) | Wind-power electricity generation installs loop wheel machine | |
| CN202899149U (en) | General construction platform for constructing triangle leg group of self-elevating drilling platform | |
| CN109972616A (en) | Pile driving equipment is used in a kind of construction of fishing light complementation photovoltaic | |
| CN218813712U (en) | Positioning frame for inserting and driving floating box type steel pipe pile | |
| CN203906173U (en) | Water-driven wheel generator set | |
| CN220317198U (en) | Bracket structure capable of realizing turnover of inner climbing tower crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |