CN105673972B - Vacuum pipe - Google Patents
Vacuum pipe Download PDFInfo
- Publication number
- CN105673972B CN105673972B CN201610153969.1A CN201610153969A CN105673972B CN 105673972 B CN105673972 B CN 105673972B CN 201610153969 A CN201610153969 A CN 201610153969A CN 105673972 B CN105673972 B CN 105673972B
- Authority
- CN
- China
- Prior art keywords
- bellows
- piece
- pipe
- straight tube
- axle center
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/04—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies allowing adjustment or movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1012—Flanged joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
- F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
Abstract
The present invention relates to technical field of vacuum equipment, more particularly to a kind of vacuum pipe, including the first body, the second body and bellows, described bellows is provided with two or more, gas is branched in more than two bellowss by the first body, the gas for flowing through bellows converges into together by the second body again, first body and the second body are made up of rigid material, the inlet, outlet arranged concentric of vacuum pipe, the pipe range direction of bellows are arranged symmetrically perpendicular to the axis direction of air inlet and more than two bellowss on the axle center.It is arranged symmetrically on the axle center of air inlet due to bellows and is cancelled each other with axis perpendicular, the stretching and compression of so each bellows, and first and second body is rigid, would not be subjected to displacement between vavuum pump and vacuum cavity when being so evacuated;Simultaneously as being provided with bellows here, the vibration of such vavuum pump is also not transferred to vacuum cavity, plays good vibration isolating effect.
Description
Technical field
The present invention relates to technical field of vacuum equipment, more particularly to a kind of vacuum pipe.
Background technology
With the continuous development of scientific technology, large-scale vacuum system is more and more in the application of every profession and trade, such as various grains
The development of sub- accelerator, nuclear physics basis and application study, aerospace simulation device, semi-conductor industry, medical and health, ring
Border protection, new material research etc. are required to vacuum environment.Conventional vacuum system includes vacuum cavity, vacuum pipe and true
Empty pump, its intermediate pump are mainly used in extracting the gas in vacuum cavity, and vacuum pipe is mainly used in connecting vacuum cavity and true
Empty pump.
At present, vacuum pipe mainly has two kinds of structures:One kind is straight tube, as Beijing North microelectronics base equipment technique is ground
Study carefully patent of invention filed in 8 days April in 2013 of centered finite responsible company《Vacuum suction device and etching apparatus》(application
Number:201310118631.9;Publication number:A kind of air extractor, including vacuum suction chamber, molecule are disclosed in 104103550A)
Pump and the transition passage for connecting vacuum suction chamber and molecular pump, wherein transition passage are tubular structure, mistake mentioned here
Cross the vacuum pipe that passage just belongs to straight tube class.Straight tube has certain rigidity, and it can avoid vacuum by the rigidity of itself
Pump or vacuum cavity are dragged, but the vibration of vavuum pump can also be passed to vacuum cavity by rigid straight tube simultaneously.
Also one kind is bellows, bellows have it is flexible can effective isolated vacuum pump vibration, but due to
During vacuumizing, vacuum pipe will bear very big pressure in the axial direction, probably there is 1kg/cm2, can thus lead
Axial deformation is produced under the axial compressive force effect that cause bellows can be when vacuumizing, will band if not using requisite measure
Dynamic vavuum pump or vacuum cavity are subjected to displacement.
The content of the invention
Vavuum pump or vacuum cavity quilt are avoided it is an object of the invention to provide a kind of vacuum pipe, while effective vibration isolation
Dragging.
To realize object above, the technical solution adopted by the present invention is:A kind of vacuum pipe, including the first body, second
Body and bellows, described bellows are provided with three, and gas is branched in bellows by the first body, flows through ripple
The gas of pipe converges into together by the second body again, and the first body and the second body are made up of rigid material, vacuum pipe
Inlet, outlet arranged concentric, bellows pipe range direction is perpendicular to the axis direction of air inlet and three bellowss are on the axle
The heart is arranged symmetrically;In the axle center of three bellowss is generally aligned in the same plane and mutually angle is 120 degree, and three bellowss are located at inner side
One end linked together by the first body, the other end of three bellowss is linked together by the second body.
Another technical scheme that the present invention uses for:A kind of vacuum pipe, including the first body, the second body and ripple
Pipe, the setting of described bellows is N number of, and N is the integer more than or equal to 4, and gas is branched in bellows by the first body, flowed through
The gas of bellows converges into together by the second body again, and the first body and the second body are made up of rigid material, vacuum tube
The inlet, outlet arranged concentric in road, bellows pipe range direction is perpendicular to the axis direction of air inlet and N number of bellows is on this
Axle center is arranged symmetrically;In the axle center of N number of bellows is generally aligned in the same plane and mutual angle is 360/N degree, and N number of bellows is positioned at interior
One end of side is linked together by the first body, and the other end of N number of bellows is linked together by the second body.
Compared with prior art, there is following technique effect in the present invention:Because bellows is symmetrical on the axle center of air inlet
Arrange and cancelled each other with axis perpendicular, the stretching and compression of so each bellows, and first and second body is rigidity
, it would not be subjected to displacement between vavuum pump and vacuum cavity when being so evacuated;Simultaneously as bellows is provided with here, this
The vibration of sample vavuum pump is also not transferred to vacuum cavity, plays good vibration isolating effect.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the embodiment of the present invention one;
Fig. 2 is Fig. 1 front view;
Fig. 3 is the dimensional structure diagram of the embodiment of the present invention two;
Fig. 4 is Fig. 3 top view.
Embodiment
With reference to Fig. 1 to Fig. 4, the present invention is described in further detail.
Refering to Fig. 1-Fig. 4, a kind of vacuum pipe, including the first body 10, the second body 20 and bellows 30, it is described
Bellows 30 is provided with two or more, and gas is branched in bellows 30 by the first body 10, flows through the gas of bellows 30
Being converged into together by the second body 20 again, the first body 10 and the second body 20 are made up of rigid material, the entering of vacuum pipe,
Gas outlet arranged concentric, the pipe range direction of bellows 30 are closed perpendicular to the axis direction and more than two bellowss 30 of air inlet
It is arranged symmetrically in the axle center.In the present invention, as a result of the first body 10 made of rigid material and the second body 20, taking out
Axial deformation will not occur under axial compressive force effect during vacuum, ensure that between the first body 10 and the second body 20 along air inlet
The position of mouth axis direction is constant.In addition, the research influenceed on bellows 30 on fluid is still in elementary step, Primary Study knot
Fruit shows that the stress of bellows 30 fluid affected is complicated, causes bellows 3 to have different zones periodically stretching and pressure
To contract, the distribution of the ess-strain in bellows 30 is also in cyclically-varying, but in the solution of the present invention, due to two or more
Bellows 30 there is symmetry, in the case of fluid identical, can be very good to solve the problems, such as the complicated stress of bellows 30,
The stretching and compression of bellows 30 can be cancelled.Therefore, the vacuum pipe stress in all directions in the present invention is all
Compare balanced, overall structure is highly stable, is not in the displacement of vavuum pump or vacuum cavity.Furthermore because there is provided ripple
Pipe 30 so that the vibration of vavuum pump is not transferred to vacuum cavity, serves good vibration isolating effect.
Here the first body 10 is connected as isocon with vacuum cavity, and the second body 20 is used as collecting pipe and vavuum pump
Or vacuum pump set is connected.In practical application, the first body 10 can also be selected to be connected with vavuum pump or vacuum pump set, the second pipe
Body 20 is connected with vacuum cavity, and under this connected mode, gas is to be branched to by the second body 20 in bellows 30, then is led to
It is converging together to cross the first body 10, in embodiments below, all can so connect.
The quantity that bellows 30 is set can be selected as needed, and numerous embodiments are provided below to explain in detail
State the structure of vacuum pipe.
Refering to Fig. 1, Fig. 2, embodiment one, described bellows 30 is provided with two, the axle center weight of two bellowss 30
Close, the one end of two bellowss 30 toward each other is linked together by the first body 10, and the other end of two bellowss 30 leads to
The second body 20 is crossed to link together.Due to needing that the power suffered by bellows 30 is cancelled out each other, therefore minimum needs two
Bellows 30, what is used in the embodiment one is exactly two bellowss 30, is entered respectively after flowing through the gas distribution of the first body 10
Enter in two bellowss 30, due to the flow direction contrast of the gas in two bellowss 30, two such bellows 30
Suffered power is also opposite direction, it becomes possible to is completely counterbalanced by, avoids the stretching and compression of bellows 30.
The structure of first body 10 and the second body 20 has a many kinds, in embodiment one preferably, the first described body
10 include the first straight tube 11 and the second straight tube 12, and the second straight tube 12 is vertically connected on the middle part of the first straight tube 11, the first straight tube 11
T fonts are formed with the second straight tube 12, the both ends of the first straight tube 11 are connected with two bellowss 30 respectively;The second described body 20
Including the 3rd straight tube 21, the 4th straight tube 22 and two L-type pipes 23, the 4th straight tube 22 is vertically connected in the 3rd straight tube 21
Portion, one end of L-type pipe 23 is connected with bellows 30, the other end is vertically welded on the 3rd straight tube 21;First straight tube 11 and the 3rd
The axis coinciding of the axis parallel of straight tube 21, the second straight tube 12 and the 4th straight tube 22, when in use, the second straight tube 12 and vacuum chamber
Body phase connects, and the 4th straight tube 22 is connected with vavuum pump or vacuum pump set, it is of course also possible to connect in turn.The structure is easily worked,
Convenient for assembly and dismounting.
Preferably, the 3rd straight tube 21 is provided at both ends with end socket 40, and the both ends of the 3rd straight tube 21 are not easy to be processed into
Closing, closed by end socket 40 more reliable, conveniently.Between first straight tube 11 and bellows 30, bellows 30 and L-type
Be fixedly connected between pipe 23, between the 3rd straight tube 21 and end socket 40 by bump joint, bump joint refer to by a pair of flanges,
One pad and several bolt and nuts are connected with each other the removable connector as one group of combined sealing structure, are connect using flange
Head connects, have it is easy to use, bear the advantages of pressure is big, meanwhile, the pad that bump joint includes can ensure junction
Air-tightness.Second straight tube 12 is welded on the first body 10 that formula is integrally formed on the first straight tube 11, the 4th straight tube 22 and L-type pipe
23 are welded on the second body 20 that formula is integrally formed on the 3rd straight tube 21.
Refering to Fig. 3, Fig. 4, embodiment two, described bellows 30 is provided with three, the axle center position of three bellowss 30
In in same plane and mutually angle be 120 degree, one end that three bellowss 30 are located at inner side is connected to by the first body 10
Together, the other end of three bellowss 30 is linked together by the second body 20.Because bellows 30 is difficult to protect in processing
It is consistent to demonstrate,prove structure, when using two bellows 30, because of the error of structure stress will be caused to offset well;
But when using three bellowss 30, the stress suffered by bellows 30 is easier to offset.
Similarly, the structure of the first body 10 and the second body 20 has many kinds, also provides here a kind of more preferred
Structure for reference:The first described body 10 includes the first Y-piece 13 and the second straight tube 12, and the first Y-piece 13 includes three
Identical lateral, it is 120 ° that the axle center of three laterals, which is generally aligned in the same plane interior and mutually angle, and the second straight tube 12 hangs down
The direct-connected center for being connected on the first Y-piece 13, three terminations of the first Y-piece 13 are connected with three bellowss 30 respectively;Described
Second body 20 includes the second Y-piece 24, the 4th straight tube 22 and three L-type pipes 23, and the second Y-piece 24 includes three identicals
Lateral, it is 120 ° that the axle center of three laterals, which is generally aligned in the same plane interior and mutually angle, the vertical connection of the 4th straight tube 22
At the center of the second Y-piece 24, one end of L-type pipe 23 is connected with bellows 30, the other end is vertically welded in the second Y-piece 24
On lateral;Face and three lateral axles of the second Y-piece 24 where three lateral axle center of the first Y-piece 13
Face where the heart is parallel, the axis coinciding of the second straight tube 12 and the 4th straight tube 22.The structure is easily worked, convenient for assembly and tear open
Unload.
Similarly, similar with embodiment one, three terminations of second Y-piece 24 are provided with end socket 40, the
Pass through method between one Y-piece 13 and bellows 30, between bellows 30 and L-type pipe 23, between the second Y-piece 24 and end socket 40
Blue joint is fixedly connected, and the second straight tube 12 is welded on the first Y-piece 13, and the 4th straight tube 22 and L-type pipe 23 are welded on the 2nd Y types
On pipe 24.It is just no longer superfluous here due to end socket 40, bump joint being all described in detail in embodiment one
State.
Further, embodiment three, described bellows 30 are provided with N number of, and N is integer more than or equal to 4, N number of ripple
In the axle center of line pipe 30 is generally aligned in the same plane and mutually angle is 360/N degree, and N number of bellows 30 is located at one end of inner side by the
One body 10 is linked together, and the other end of N number of bellows 30 is linked together by the second body 20.For in theory, ripple
Line pipe 30 can be set more, it is contemplated that more bellowss 30 causes the overall structure of vacuum pipe to become complicated, together
It is also more inconvenient that Shi Jiagong gets up, and the structure with regard to the vacuum pipe no longer to employing more than four bellowss 30 is carried out detailed here
Carefully describe, direct reference implementation example one and embodiment two.
As the preferred scheme of the present invention, described bellows 30 is welding bellows, and welding bellows includes annular shape
Stainless steel thin slice, internal diameter and external diameter the alternating welding of each stainless steel thin slice forms thin-walled fold flexible pipe, its welding manner for etc.
Ion welds, and the material of stainless steel thin slice is SUS316 steel, and this bellows 30 has great retractility, is ultra-high vacuum system
Connection and it is various motion inducting device in indispensable part, the natural length of reasonable selection bellows 30, service life can
Up to more than hundreds thousand of times.The material of first body 10 and the second body 20 is 304 steel, and bump joint selects 316LN stainless steels, this
Sample being capable of proof strength and hardness.
Claims (5)
- A kind of 1. vacuum pipe, it is characterised in that:Including the first body (10), the second body (20) and bellows (30), institute The bellows (30) stated is provided with three, and gas is branched in bellows (30) by the first body (10), flows through bellows (30) gas converges into together by the second body (20) again, and the first body (10) and the second body (20) are rigid material system Into the inlet, outlet arranged concentric of vacuum pipe, the pipe range direction of bellows (30) is perpendicular to the axis direction of air inlet and three Individual bellows (30) is arranged symmetrically on the axle center;In the axle center of three bellowss (30) is generally aligned in the same plane and mutually angle is 120 degree, one end that three bellowss (30) are located at inner side is linked together by the first body (10), three bellowss (30) The other end is linked together by the second body (20).
- 2. vacuum pipe as claimed in claim 1, it is characterised in that:Described the first body (10) includes the first Y-piece (13) and the second straight tube (12), the first Y-piece (13) include three identical laterals, and the axle center of three laterals is located at In same plane and mutually angle is 120 °, and the second straight tube (12) is vertically connected on the center of the first Y-piece (13), the first Y types Three terminations of pipe (13) are connected with three bellowss (30) respectively;Described the second body (20) include the second Y-piece (24), 4th straight tube (22) and three L-type pipes (23), the second Y-piece (24) include three identical laterals, three branched pipes In the axle center in road is generally aligned in the same plane and mutually angle is 120 °, and the 4th straight tube (22) is vertically connected on the second Y-piece (24) Center, one end of L-type pipe (23) is connected with bellows (30), the other end is vertically welded in the laterals of the second Y-piece (24) On;Face and three lateral axle center institutes of the second Y-piece (24) where three lateral axle center of the first Y-piece (13) Face it is parallel, the axis coinciding of the second straight tube (12) and the 4th straight tube (22).
- 3. vacuum pipe as claimed in claim 2, it is characterised in that:Three terminations of second Y-piece (24) are respectively provided with Have end socket (40), between the first Y-piece (13) and bellows (30), between bellows (30) and L-type pipe (23), the second Y-piece (24) it is fixedly connected between end socket (40) by bump joint, the second straight tube (12) is welded on the first Y-piece (13), the Four straight tubes (22) and L-type pipe (23) are welded on the second Y-piece (24).
- 4. vacuum pipe as claimed in claim 1, it is characterised in that:Described bellows (30) is welding bellows, welding Bellows includes circular stainless steel thin slice, and it is soft that internal diameter and external diameter the alternating welding of each stainless steel thin slice forms thin-walled fold Pipe, its welding manner weld for plasma;The material of stainless steel thin slice is SUS316 steel, the first body (10) and the second body (20) Material be 304 steel.
- A kind of 5. vacuum pipe, it is characterised in that:Including the first body (10), the second body (20) and bellows (30), institute Bellows (30) setting stated is N number of, and N is the integer more than or equal to 4, and gas branches to bellows (30) by the first body (10) In, the gas for flowing through bellows (30) converges into together by the second body (20) again, the first body (10) and the second body (20) it is made up of rigid material, the inlet, outlet arranged concentric of vacuum pipe, the pipe range direction of bellows (30) is perpendicular to air inlet The axis direction and N number of bellows (30) of mouth are arranged symmetrically on the axle center;The axle center of N number of bellows (30) is generally aligned in the same plane Interior and mutual angle is 360/N degree, and one end that N number of bellows (30) is located at inner side is linked together by the first body (10), N The other end of individual bellows (30) is linked together by the second body (20).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610153969.1A CN105673972B (en) | 2016-03-16 | 2016-03-16 | Vacuum pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610153969.1A CN105673972B (en) | 2016-03-16 | 2016-03-16 | Vacuum pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105673972A CN105673972A (en) | 2016-06-15 |
CN105673972B true CN105673972B (en) | 2017-11-17 |
Family
ID=56215240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610153969.1A Expired - Fee Related CN105673972B (en) | 2016-03-16 | 2016-03-16 | Vacuum pipe |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105673972B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114180513A (en) * | 2021-12-08 | 2022-03-15 | 三沙供电局有限责任公司 | Semi-automatic device of injecting oil |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2009227A1 (en) * | 1970-02-27 | 1971-09-02 | Westerbarkey Westaflex | |
US4239267A (en) * | 1979-09-10 | 1980-12-16 | The Dow Chemical Company | Internal-bellows, pressure-balanced, angled-flowpath expansion joint |
DE10301374B4 (en) * | 2003-01-16 | 2005-07-07 | Airbus Deutschland Gmbh | Bellows for the mechanical connection of two tubes arranged at a predetermined distance |
CN201731216U (en) * | 2010-07-30 | 2011-02-02 | 中冶赛迪工程技术股份有限公司 | Tube compensation device |
US9316136B2 (en) * | 2012-07-05 | 2016-04-19 | Komatsu Ltd. | Engine unit and work vehicle |
CN204879239U (en) * | 2015-07-21 | 2015-12-16 | 洛阳双瑞特种装备有限公司 | Branching is displacement compensation ripple tube swelling festival for pipeline |
CN205447065U (en) * | 2016-03-16 | 2016-08-10 | 安徽万瑞冷电科技有限公司 | Vacuum pipe |
-
2016
- 2016-03-16 CN CN201610153969.1A patent/CN105673972B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN105673972A (en) | 2016-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2537781C2 (en) | Sterile connector with non-sterile bending ring and method | |
CN105673972B (en) | Vacuum pipe | |
CN104369191B (en) | For the manipulator of automation single-point leak detection | |
CN205447065U (en) | Vacuum pipe | |
CN104879603A (en) | Air energy pipe fluid filter | |
JP3218368U (en) | Driving type branch pipe | |
CN207647620U (en) | A kind of combustion turbine exhaustion diffusion pipeline | |
CN109114321A (en) | A kind of pipeline connecting assemble and pipeline | |
CN207364493U (en) | Rigid conduit pressure sealing structure | |
CN209354844U (en) | A kind of high temperature resistant non-metal compensator | |
CN209291505U (en) | A kind of concealed pipe structure suction arm assembly | |
US10393293B2 (en) | Coupling to be crimped onto at least one pipe, set of pipes including such a coupling, and method for assembling a pipe with such a coupling | |
CN207113296U (en) | Air inlet tube assembly | |
CN209245511U (en) | The oblique manure through pipe device of septic tank | |
CN209484095U (en) | A kind of Application of Large-diameter Pump metal hose | |
CN205333257U (en) | Online dialysis powder wrapping bag pressure seal test connecting device | |
CN208901743U (en) | Compression air separation device in a kind of low energy consumption | |
CN106545720B (en) | A kind of scalable flexible vacuum pipe | |
CN205991277U (en) | A kind of straight pipe pressure-balancing type expansion joint based on inside and outside force combination operating mode | |
CN218795114U (en) | Ultrafiltration pipeline for virus carrier ultrafiltration purification aseptic production | |
CN214528353U (en) | Clean stainless steel pipe prepared by ultrapure water verification device | |
CN208634774U (en) | A kind of drain pipe with view cup | |
CN206419674U (en) | A kind of compound pipeline complex pipeline vacuum penetrates component | |
CN108092123B (en) | For being connected to pipeline and its manufacturing method and the application of laser and vacuum environment | |
CN220551643U (en) | Quick connector for pipeline |
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 | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20190316 |