CN206017534U - The fluid linking damper of built-in piston formula cubage compensation device - Google Patents
The fluid linking damper of built-in piston formula cubage compensation device Download PDFInfo
- Publication number
- CN206017534U CN206017534U CN201620847012.2U CN201620847012U CN206017534U CN 206017534 U CN206017534 U CN 206017534U CN 201620847012 U CN201620847012 U CN 201620847012U CN 206017534 U CN206017534 U CN 206017534U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- built
- master cylinder
- compensation device
- 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
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model proposes a kind of fluid linking damper of built-in piston formula cubage compensation device; by arranging auxiliary piston bar assembly; when temperature is too high; the volumetric expansion of viscid medium can be converted into the compression to gas medium; as gas medium is more prone to be compressed relative to viscid medium, the viscid medium volume of increase is therefore can absorb, slows down that antivibrator is intrinsic pressure quickly to be increased; antivibrator " dieback " is prevented, antivibrator is played a protective role；When viscid medium temperature reduces, viscid medium volume will reduce, by the expansion of gas medium, auxiliary piston bar assembly can discharge viscid medium compensation in antivibrator, prevent " vacuum " occur inside antivibrator, it is ensured that the output of the normal damping force of antivibrator, so as to effectively reduce temperature change impact.
Description
Technical field
This utility model relates to the damping protection of the bad shock loadings such as bridge, large-scale construction engineering antidetonation, wind resistance
Device, more particularly to a kind of fluid linking damper of built-in piston formula cubage compensation device.
Background technology
The intensity that traditional antidetonation mainly has by structure, component itself carrys out antidetonation, main by increasing structure, component
Strength and stiffness are passively resisting earthquake.Not only huge structure cost is improved the method, and in some high earthquake intensity situations
Even if lower enhancing structure cannot also meet security requirement.In recent years, with the development of science and technology, a kind of anti seismic efficiency is bright
Aobvious, safe and reliable and economic anti-shock methods are born, i.e., change power sound of the structure in earthquake by being introduced into earthquake isolating equipment
Answer characteristic, so as to reduce Seismic input, additional power consumption mechanism as main antidetonation component, and supplemented by structural elements antidetonation.
In the method, basic object is to greatly reduce the seismic force and energy being delivered in structure, and its shock resistance is by prolonging
In the long structure cycle, increase energy dissipation capacity to realize.
Viscosity antivibrator is the best antidetonation product of generally acknowledged damping and isolation effect, and it is in motion using its interior media
Middle produce damping because of viscosity property, and seismic energy is converted into the heat energy of confined space internal viscosity fluid, so as to reach power consumption
The device of the effect of damping.
The double rod versions of antivibrator employing, pier and moveable beam that both sides otic placode is connected respectively, herein
There can be relative displacement between pier and beam.When there is relative displacement, the external force that piston will be transmitted by main piston rod is transported in cylinder body
Dynamic, viscid medium will flow into low pressure chamber from high pressure chest by through hole, and medium can produce damping during damping hole is flowed through
Power, power consumption, antidetonation process of this process for fluid linking damper.Now, the volume in a chamber increases, and in addition the volume in a chamber will subtract
Little, because two chamber effective area sizes are identical, therefore change in volume is also identical.I.e. antivibrator interior media cumulative volume is basic holding not
The problems such as change is not in " dieback " and " vacuum ".The power consumption of antivibrator is and velocity correlation that its horizontal reacting force meets public
Formula F=CVɑWherein, C is damped coefficient, and V is the relative velocity of beam and pier, and α is Rate Index.
The suitable environment temperature of general fluid linking damper is -25 DEG C -50 DEG C, and temperature span is larger, and fluid linking damper is situated between
Matter density is affected also very greatly by temperature change, i.e., the volume of medium has obvious expansion or deflation when the temperature is changed,
Tool rough calculation, when temperature is when 25 DEG C are increased to 50 DEG C, fluid linking damper medium volume will increase by 2.26%, and cylinder block material
For steel alloy, its change in volume is influenced by temperature very little, can be considered definite value.So when temperature is higher than design temperature, damping
In device cavity, medium volume expansion, makes the intrinsic pressure rising of cavity, when temperature is less than design temperature, will appear from vacuum in cavity.For
Solving this situation generally has two methods：1st, increase buffer unit to antivibrator, that is, increase by an accumulator；2nd, pre- to antivibrator
Certain pressure is filled, total holding certain pressure inside antivibrator.Increase the overall volume that accumulator increases antivibrator, and many
, easily there are the failures such as leakage, can solve the problems, such as vacuum occur after Preliminary pressure-filled in connecting pipe, but when the temperature increases, resistance
Buddhist nun's device is intrinsic pressure can be higher, has higher requirement to parts such as the material of antivibrator, sealings.
Utility model content
In view of this, the utility model proposes a kind of built-in piston formula volume that can effectively reduce temperature change impact is mended
Repay the fluid linking damper of device.
The technical solution of the utility model is realized in：A kind of viscous damping of built-in piston formula cubage compensation device
Device, it include being full of viscid medium in two otic placodes, two end caps, a Master cylinder body, a main piston rod and pistons, master cylinder body,
Two end caps seal Master cylinder body or so two ends respectively, and a wherein otic placode is fixedly connected with Master cylinder body, another otic placode and main piston rod
It is fixedly connected, piston is arranged in master cylinder body and is fixedly connected with main piston rod, is provided through hole, also includes secondary work on piston
Stopper rod component, auxiliary piston bar assembly include that auxiliary piston bar and valve piston, auxiliary piston bar are coaxially fixed with main piston rod, and valve piston sets
It is placed in inside auxiliary piston bar and auxiliary piston bar is divided into the little cavity in left side and the little cavity in right side, the little cavity in right side is in sealing shape
State and internal be filled with gas medium, the little cavity in left side is connected with Master cylinder body.
On the basis of above technical scheme, it is preferred that the auxiliary piston bar assembly also includes covering, lidstock is secondary living
Stopper rod, auxiliary piston bar side face are provided with damping hole, are provided with the first damping plug on auxiliary piston boom end, are provided with second in capping
Damping plug, the little cavity in left side, the second damping plug, the first damping plug, damping hole and Master cylinder body are sequentially communicated.
On the basis of above technical scheme, it is preferred that be provided with charge valve on the valve piston.
On the basis of above technical scheme, it is preferred that be provided with the valve piston and the contact surface of auxiliary piston bar and lead
To band and sealing member.
On the basis of above technical scheme, it is preferred that the gas medium is nitrogen.
On the basis of above technical scheme, it is preferred that also include that subsidiary cylinder, subsidiary cylinder one end are nested in master cylinder body,
The other end is fixedly connected with an otic placode, is provided with through hole on described two end caps, and main piston rod and auxiliary piston bar are each passed through logical
Kong Bingyu end cap seals.It is further preferred that being provided with sealing system at the end cap and piston rod and auxiliary piston rod seal.
On the basis of above technical scheme, it is preferred that also include dust cover, the dust cover is nested in main piston rod
On, and be arranged between otic placode and end cap.
The fluid linking damper of built-in piston formula cubage compensation device of the present utility model has following relative to prior art
Beneficial effect：
(1) by arranging auxiliary piston bar assembly, when temperature is too high, the volumetric expansion of viscid medium can be converted into gas
The compression of body medium, as gas medium is more prone to be compressed relative to viscid medium, therefore can absorb viscid Jie of increase
Plastid is accumulated, and slows down that antivibrator is intrinsic pressure quickly to be increased, and prevents antivibrator " dieback ", antivibrator is played a protective role；When viscid
When medium temperature reduces, viscid medium volume will reduce, and by the expansion of gas medium, auxiliary piston bar assembly can discharge viscid Jie
Matter is compensated in antivibrator, prevents " vacuum " occur inside antivibrator, it is ensured that the output of the normal damping force of antivibrator, so as to effective
Reducing temperature change affects；
(2) additionally, by arranging damping hole, the first damping plug and the second damping plug, buffering selection effect can be played, works as master
Because temperature is raised during pressure rise, viscid medium can pass through above-mentioned damp channel and enter auxiliary piston bar the viscid medium of cylinder body
Component, when because of larger service loads such as earthquakes, the viscid medium for having very little ratio is entered in auxiliary piston bar assembly, Bu Huiying
The output of damping force is rung, because damp channel is acted on, Master cylinder body internal viscosity medium will not with the viscid medium in auxiliary piston bar assembly
Moment flows in a large number, and the intrinsic pressure of auxiliary piston bar assembly also will not increase suddenly and reduce, and valve piston movement velocity is also slowly.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Positive views of the Fig. 1 for the fluid linking damper of this utility model built-in piston formula cubage compensation device；
Positive views of the Fig. 2 for this utility model auxiliary piston bar assembly.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical scheme in this utility model embodiment
It is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, and not
It is whole embodiments.Embodiment in based on this utility model, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that obtained, belong to the scope of this utility model protection.
With reference to Fig. 1, the fluid linking damper of built-in piston formula cubage compensation device of the present utility model, which includes two otic placodes
1st, two end caps 4, a Master cylinder body 5, a main piston rod 6, pistons 7 and auxiliary piston bar assemblies 8.
Two otic placodes 1, connect the anchoring piece on pier and on beam respectively.Specifically, the otic placode 1 is embedded is cased with bearing pin 2, sells
Plain radial bearing is installed between axle 2 and otic placode 1.
Two end caps 4, seal 5 or so two ends of Master cylinder body respectively.Specifically, a wherein otic placode 1 is fixed with Master cylinder body 5 and is connected
Connect, another otic placode 1 is fixedly connected with main piston rod 6.Thus, the relative motion of two otic placodes 1 can be converted into 5 He of Master cylinder body
The relative motion of main piston rod 6.Preferably, also include dust cover 3, the dust cover 3 is nested on main piston rod 6, and is arranged
Between otic placode 1 and end cap 4.Dust is prevented to be attached to main piston rod 6 and further bring in Master cylinder body 5.Preferably, also include
Auxiliary piston cylinder body 10,10 one end of auxiliary piston cylinder body are nested in Master cylinder body 5, and the other end is fixedly connected with an otic placode 1, described two
Through hole is provided with end cap 4, and main piston rod 6 and auxiliary piston bar 8.5 are each passed through through hole and are sealed with end cap 4.Thus, subsidiary cylinder
10 can be fixedly connected otic placode 1 and Master cylinder body 5.
Viscid medium is full of in Master cylinder body 5, and the viscid medium can adopt dimethicone.Piston 7 is arranged at Master cylinder body 5
Interior and be fixedly connected with main piston rod 6, hole h01 is provided through on piston 7.Thus, Master cylinder body 5 is divided into left chamber by piston 7
Room 101 and right chamber room 102, in left chamber 101 with right chamber room 102, Dang Dun is with beam because earthquake, wind load are acted on for viscid Filled Dielectrics
During generation relative displacement, external force will promote the relative motion in the Master cylinder body 5 of piston 7, viscid medium by otic placode 1, main piston rod 6
Other a chamber (low pressure chamber) will be flowed into by through hole h01 from by compression chamber (high pressure chest), viscid medium is flowing through through hole h01
During can produce damping force, the size of damping force meets force equation F=CVɑ, now the size of damping force only with piston 7
Movement velocity relevant.When occurring slow displacement because expanding with heat and contract with cold between reason pier and beam, speed V is very little, damping force
Very little, negligible.
Auxiliary piston bar assembly 8 includes auxiliary piston bar 8.5 and valve piston 8.4.
Auxiliary piston bar 8.5 and 6 coaxial fixation of main piston rod, specifically, auxiliary piston bar 8.5 is distinguished with 6 end of main piston rod
It is fixed on piston 7.Thus, piston 7 can be promoted to be synchronized with the movement with auxiliary piston bar 8.5 by main piston rod 6.
Valve piston 8.4 is arranged inside auxiliary piston bar 8.5 and auxiliary piston bar 8.5 is divided into the little cavity 801 in left side and the right side
The little cavity 802 in side, the little cavity 802 in right side in sealing state and internal be filled with gas medium 8.9, the little cavity 801 in left side with
Master cylinder body 5 is connected.Preferably, the auxiliary piston bar assembly 8 also includes covering 8.1, covers 8.1 sealing pair piston rods 8.5, secondary living
8.5 side of stopper rod is provided with damping hole h02, is provided with the first damping plug 8.3, arranges in capping 8.1 on 8.5 end of auxiliary piston bar
There are the second damping plug 8.4, the little cavity 801 in left side, the second damping plug 8.4, the first damping plug 8.3, damping hole h02 and Master cylinder body 5
It is sequentially communicated.Thus, when the pressure rise because temperature is raised of 5 viscid medium of Master cylinder body, viscid medium can smoothly enter auxiliary piston
Bar assembly 8, when because of larger service loads such as earthquakes, the viscid medium for having very little ratio is entered in auxiliary piston bar assembly 8, no
The output of damping force can be affected, because the little cavity 801 in left side is connected with Master cylinder body 5,5 internal viscosity medium of Master cylinder body and auxiliary piston bar group
Viscid medium in part 8 will not flow moment in a large number, and the intrinsic pressure of auxiliary piston bar assembly 8 also will not increase suddenly and reduce, little work
Fill in 8.4 movement velocitys also slowly.Preferably, charge valve 8.6 is provided with the valve piston 8.4.Thus, can facilitate to the right side
The little 802 insufflation gas medium 8.9 of cavity in side.Preferably, because valve piston 8.4 is moved slowly, 8.4 media of both sides pressure of valve piston is fitted
In equal, be beneficial to life-span and the sealing effectiveness of sealing member 8.8.Specifically, the gas medium 8.9 is nitrogen.Preferably,
Guidance tape 8.7 and sealing member 8.8 are provided with the valve piston 8.4 and the contact surface of auxiliary piston bar 8.5.Preferably, the end
Sealing system 9 is provided with lid 4 and 8.5 sealing of piston rod 6 and auxiliary piston bar.
Valve piston 8.4 can in 8.5 internal piston hole of auxiliary piston bar along axial-movement, when viscid medium temperature is raised,
When 5 cavity pressure of Master cylinder body increases, viscid medium is by damp channel, i.e. damping hole h02, the first damping plug 8.3 and the second resistance
Buddhist nun's plug 8.4 is entered in the little cavity 801 in left side, promotes valve piston 8.4 to move, and compressed nitrogen, fluid linking damper chamber pressure slightly have
Raise；When viscid medium temperature reduces, viscid pressure medium reduces, and the nitrogen volume in the little cavity 802 in right side can increase, and promotes
Valve piston 8.4 is moved, and viscid medium pressed to 5 cavity of Master cylinder body by damp channel, redeeming, now fluid linking damper
Chamber pressure slightly reduces.Specifically, damp channel can be directly processed on piston 7 or auxiliary piston bar 8.5, it is also possible to resistance
Buddhist nun's plug is prefabricated to be formed.
The foregoing is only better embodiment of the present utility model, not in order to limit this utility model, all
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvements that is made etc. should be included in this practicality new
Within the protection domain of type.
Claims (8)
1. a kind of fluid linking damper of built-in piston formula cubage compensation device, it include two otic placodes (1), two end caps (4), one
Viscid medium is full of in Master cylinder body (5), a main piston rod (6) and a piston (7), Master cylinder body (5), and two end cap (4) difference are close
Envelope Master cylinder body (5) left and right two ends, a wherein otic placode (1) are fixedly connected with a Master cylinder body (5), another otic placode (1) and main piston rod
(6) it is fixedly connected, piston (7) is arranged in Master cylinder body (5) and is fixedly connected with main piston rod (6), is provided with and passes through on piston (7)
Perforation (h01), it is characterised in that：Also include auxiliary piston bar assembly (8), auxiliary piston bar assembly (8) include auxiliary piston bar (8.5) and
Valve piston (8.4), auxiliary piston bar (8.5) are coaxial with main piston rod (6) fixed, and valve piston (8.4) is arranged at auxiliary piston bar (8.5)
Auxiliary piston bar (8.5) is simultaneously divided into left side little cavity (801) and the little cavity in right side (802), right side little cavity (802) place by inside
In sealing state and internal filled with gas medium (8.9), the little cavity in left side (801) is connected with Master cylinder body (5).
2. the fluid linking damper of built-in piston formula cubage compensation device as claimed in claim 1, it is characterised in that：Described secondary living
Stopper rod component (8) also includes covering (8.1), capping (8.1) sealing pair piston rod (8.5), and auxiliary piston bar (8.5) side is provided with
Damping hole (h02), is provided with the first damping plug (8.3), is provided with the second resistance in capping (8.1) on auxiliary piston bar (8.5) end
Ni Sai (8.4), the little cavity in left side (801), the second damping plug (8.4), the first damping plug (8.3), damping hole (h02) and Master cylinder body
(5) it is sequentially communicated.
3. the fluid linking damper of built-in piston formula cubage compensation device as claimed in claim 1, it is characterised in that：The little work
Charge valve (8.6) is provided with plug (8.4).
4. the fluid linking damper of built-in piston formula cubage compensation device as claimed in claim 1, it is characterised in that：The little work
Guidance tape (8.7) and sealing member (8.8) are provided with plug (8.4) and the contact surface of auxiliary piston bar (8.5).
5. the fluid linking damper of built-in piston formula cubage compensation device as claimed in claim 1, it is characterised in that：The gas
Medium (8.9) is nitrogen.
6. the fluid linking damper of built-in piston formula cubage compensation device as claimed in claim 1, it is characterised in that：Also include pair
Cylinder body (10), subsidiary cylinder (10) one end are nested in Master cylinder body (5), and the other end is fixedly connected with an otic placode (1), described two ends
Through hole is provided with lid (4), and main piston rod (6) and auxiliary piston bar (8.5) are each passed through through hole and are sealed with end cap (4).
7. the fluid linking damper of built-in piston formula cubage compensation device as claimed in claim 6, it is characterised in that：The end cap
(4) sealing system (9) is provided with piston rod (6) and auxiliary piston bar (8.5) sealing.
8. the fluid linking damper of built-in piston formula cubage compensation device as claimed in claim 1, it is characterised in that：Also include preventing
Dust hood (3), dust cover (3) are nested on main piston rod (6), and are arranged between otic placode (1) and end cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620847012.2U CN206017534U (en) | 2016-08-05 | 2016-08-05 | The fluid linking damper of built-in piston formula cubage compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620847012.2U CN206017534U (en) | 2016-08-05 | 2016-08-05 | The fluid linking damper of built-in piston formula cubage compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017534U true CN206017534U (en) | 2017-03-15 |
Family
ID=58247521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620847012.2U Expired - Fee Related CN206017534U (en) | 2016-08-05 | 2016-08-05 | The fluid linking damper of built-in piston formula cubage compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017534U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906160A (en) * | 2017-12-13 | 2018-04-13 | 中铁二院工程集团有限责任公司 | A kind of novel rod-type viscous damper |
| CN108662067A (en) * | 2018-07-20 | 2018-10-16 | 何亮 | Damper |
| CN108756007A (en) * | 2018-06-28 | 2018-11-06 | 云南震安减震科技股份有限公司 | A kind of combined multifunctional fluid linking damper |
| CN109268432A (en) * | 2018-11-16 | 2019-01-25 | 广州大学 | A kind of damper |
| CN109404468A (en) * | 2018-11-21 | 2019-03-01 | 云南震安减震科技股份有限公司 | A kind of Effects of Viscous Fluid Damper with fatigue-resistance characteristics |
| CN110924288A (en) * | 2019-11-13 | 2020-03-27 | 株洲时代新材料科技股份有限公司 | Viscous damper |
-
2016
- 2016-08-05 CN CN201620847012.2U patent/CN206017534U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906160A (en) * | 2017-12-13 | 2018-04-13 | 中铁二院工程集团有限责任公司 | A kind of novel rod-type viscous damper |
| CN107906160B (en) * | 2017-12-13 | 2023-09-08 | 中铁二院工程集团有限责任公司 | Novel rod-type viscous damper |
| CN108756007A (en) * | 2018-06-28 | 2018-11-06 | 云南震安减震科技股份有限公司 | A kind of combined multifunctional fluid linking damper |
| CN108756007B (en) * | 2018-06-28 | 2024-02-02 | 震安科技股份有限公司 | Combined type multifunctional viscous damper |
| CN108662067A (en) * | 2018-07-20 | 2018-10-16 | 何亮 | Damper |
| CN108662067B (en) * | 2018-07-20 | 2024-03-08 | 何亮 | Damper |
| CN109268432A (en) * | 2018-11-16 | 2019-01-25 | 广州大学 | A kind of damper |
| CN109268432B (en) * | 2018-11-16 | 2023-08-18 | 广州大学 | Damper |
| CN109404468A (en) * | 2018-11-21 | 2019-03-01 | 云南震安减震科技股份有限公司 | A kind of Effects of Viscous Fluid Damper with fatigue-resistance characteristics |
| CN109404468B (en) * | 2018-11-21 | 2024-02-02 | 震安科技股份有限公司 | Viscous fluid damper with fatigue resistance |
| CN110924288A (en) * | 2019-11-13 | 2020-03-27 | 株洲时代新材料科技股份有限公司 | Viscous damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206017534U (en) | The fluid linking damper of built-in piston formula cubage compensation device | |
| CN103061425B (en) | A kind of series and parallel multistage valve viscous damping method and damper | |
| CN103671676A (en) | Viscous damper | |
| CN203247729U (en) | Viscous damper with static rigidity | |
| CN105064531A (en) | Self-reset magnetic fluid damper | |
| CN106121078B (en) | A kind of magnetic fluid variable damping energy dissipation brace with reset function | |
| CN104989764B (en) | Hole type viscous damper with hole length capable of being automatically adjusted | |
| CN103032504A (en) | Inverted double-out-rod stay cable oil damper based on thin-wall small hole throttling | |
| CN103671677A (en) | Viscous damper | |
| CN202867681U (en) | Blade type shock absorber | |
| Liu et al. | Performance analysis and optimal design based on dynamic characteristics for pressure compensated subsea all-electric valve actuator | |
| CN106884922B (en) | A kind of hydraulic damper compensated automatically with oil pocket | |
| CN103526690A (en) | Locking device for bridge structure shock absorption control | |
| CN206015507U (en) | The fluid linking damper of built-in capsule-type cubage compensation device | |
| CN206579839U (en) | It is a kind of that there is the undercarriage buffer unit for subtracting pendulum function | |
| CN103952969B (en) | Intelligent speed locking device | |
| CN205136944U (en) | Cut tackify damping siphuncle way attenuator | |
| CN201858926U (en) | Compensation seal pretightening device used for heat exchanger | |
| CN203890861U (en) | Intelligent speed locking device | |
| CN209671508U (en) | A kind of viscous damper with automatic recovery ability | |
| CN203656013U (en) | Viscous damper | |
| CN203656014U (en) | Viscous damper | |
| CN208734177U (en) | Barrel type tension and compression damper | |
| CN209688240U (en) | A kind of cryogenic valve fugacity composite filling structure | |
| CN202867682U (en) | Bidirectional elastic damper based on polymer material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20190805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |