CN204330374U - A kind of rig for model test of angle adjustable - Google Patents
A kind of rig for model test of angle adjustable Download PDFInfo
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- CN204330374U CN204330374U CN201520015799.1U CN201520015799U CN204330374U CN 204330374 U CN204330374 U CN 204330374U CN 201520015799 U CN201520015799 U CN 201520015799U CN 204330374 U CN204330374 U CN 204330374U
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Abstract
The utility model discloses a kind of rig for model test of angle adjustable, it is by external frame, tiltable frame, front and rear baffle, hydraulic support device and suspention hoisting apparatus composition, resemble simulation test is carried out by the rock stratum of different angle in this device and method formation, by observing, measure at external disturbance, terrestrial stress, apply the stress distribution of the lower inside, rock stratum of the effects such as external force, the physico mechanical characteristics such as change in displacement, draw relevant technical indicator and parameter, study homogenous rock stratum regularity in this course truly, be conducive to carrying out effective supporting in the work progress of rock stratum, for geological formations safe construction is given security.
Description
Technical field
The utility model relates to a kind of rock stratum physical simulation test unit, particularly relates to tilted stratum physical scaled model testing table.
Background technology
Geological formations is under the effects such as external disturbance, terrestrial stress or applying external force, breaking and the research of the physico mechanical characteristic such as stress distribution, change in displacement of movement law and country rock of rock stratum, an important topic of geological formations research field, the important guarantee of geological formations safe construction especially.But due to singularity and the complicacy of geological formations environment, and the field measurement cycle longer, expend the factor impacts such as large, cause that systematic research is carried out to underground pressure and the characteristics of motion and be difficult to carry out with the inner Character change in-situ monitoring of analysis and rock stratum comprehensively.
Therefore, resemble simulation test becomes the important scientific method of this complicated geological environment of research.Theoretical based on resemble simulation test, by the geological formations of complexity by the similar reproduction on model, study the regularity of phenomenon and the process occurred in real object, relevant technical indicator and parameter can be drawn, for the production practices of Practical Project and application provide scientific basis, there is certain directive significance to the rock movement theoretical research under disturbance, terrestrial stress and applied external force, thus reach the object of solving practical problems.
Traditional resemble simulation test device generally can only carry out the simulation test of horizontal bedding.Minority can simulate the resemble simulation test device of tilted stratum, because upper rack rocks, uncontrolled, makes unbalance, and existence and stability is poor, dangerous large hidden danger, often causes the collapsing of filling model, slippage; And in model frame unitary rotation process, the angle of inclination that can simulate is restricted, wayward.Above-mentioned Equivalent Materials Testing apparatus function rock stratum condition that is single, that can simulate is restricted, can not realize safe, effective resemble simulation test of formation dip.Therefore existing resemble simulation test device is difficult to the needs adapting to present stage complex geological condition simulation to a great extent.
For the problems referred to above, how to improve existing resemble simulation test device, make it can either carry out the analog simulation of horizontal stratum, the rock stratum simulation with inclination angle can be carried out again; The simultaneously stability of equilibrium of warranty test device and the effect of security and resemble simulation test again, meets the needs of present stage geological formations research, becomes key issue urgently to be resolved hurrily.
Utility model content
The purpose of this utility model, be the rig for model test that a kind of angle adjustable is provided, resemble simulation test is carried out by the rock stratum of different angle in this rig for model test formation, by observing, measuring the physico mechanical characteristic such as stress distribution, change in displacement of inside, rock stratum under the effects such as external disturbance, terrestrial stress, applying external force, draw relevant technical indicator and parameter, study homogenous rock stratum regularity in this course truly, be conducive to carrying out effective supporting in the work progress of rock stratum, for geological formations safe construction is given security.
For solving the problems of the technologies described above, the technical scheme that the rig for model test of angle adjustable of the present utility model adopts is:
A rig for model test for angle adjustable, is characterized in that, it is made up of external frame, tiltable frame, front and rear baffle, hydraulic support device and suspention hoisting apparatus; Wherein:
Described external frame comprises vertical upright column, transverse base, entablature and sister block track; Transverse base is bolted on ground; Entablature interior lower end face is provided with parallel sister block track, and left and right vertical upright column makes base and entablature be fixed as one by bolt;
Described hydraulic support device comprises some support jacks; In the transverse base of support jack framework mounted externally; On the sister block track of described suspention hoisting apparatus framework mounted externally, and be provided with Horizontal jack on sister block track; Horizontal jack makes suspention hoisting apparatus move around on sister block track; Suspention hoisting apparatus is made up of two motors, motor power wheel, lifting rope, suspension hook, pulley; Two motors is connected by steel plate;
Described tiltable frame comprises inner frame, portable beam, loading lifting jack, pressure block, guide rail, suspension ring and bevel protractor; The integral installation of tiltable frame is inner at outside fixed frame, and and between external frame, leave certain tilting action space; Above-mentioned portable beam is movably arranged on the munnion of inner frame, and load lifting jack and be arranged on the top frame of inner frame, the external part bottom welding loading lifting jack has pressure block; Above-mentioned suspension ring are welded on both sides, inner frame upper surface; Bottom, inner frame side by rotation axis and external frame base hinged, the bottom support of inner frame is on hydraulic support device; Described bevel protractor pointer is bolted on inner frame bottom surface, bevel protractor is carved with 0-90 ° of angle index, 0 scale mark overlaps with external frame base upper surface and junction, inner frame underframe lower surface, with tiltable gantry rotation, can demonstrate the angle of inclination; The side frame of inner frame, underframe and portable beam forward and backward is all processed with the open slot along frame length direction, in open slot, guide rail is installed, guide rail had been provided with several not only slidably but also the threaded hole buckle that can fix;
Described front and rear baffle is arranged on tiltable support by threaded hole buckle, forms the space that paving fills out each rock stratum similar materials.
Rig for model test of the present utility model is utilized to carry out the method for tilted stratum physical simulation test, as follows:
The first step, adjustment tiltable rack inclining angle
First determine that scale model will spread the height filled out in tiltable frame, and at respective heights place, portable beam is installed; Start Horizontal jack, support jack and suspention hoisting apparatus electric switch, motor drives the suspension hook oscilaltion on lifting rope, hooks tiltable frame suspension ring, the tiltable frame moving axis that rotates is rotated, the degree of tilt of adjustment tiltable frame; Now along with the rotation of tiltable frame, Horizontal jack adjusts the motor position of suspention hoisting apparatus simultaneously, makes the suspension force of tiltable frame keep vertical direction; Meanwhile, the support jack synchronization lifting bottom tiltable frame, when behind the angle of inclination that tiltable frame reaches required, location stops;
Second step, paving fills out each rock stratum similar materials in proportion
2.1st step, front and rear baffle is installed in tiltable frame, bolt snapped-in position on adjustment guide rail, and by bolted, make the height of front and rear baffle equal ground floor and simulate the thickness that rock stratum will spread the analog material filled out, between the similar proportioning material paving of formation ground floor is filled a vacancy;
2.2nd step, take the raw material of experiment required ground floor simulation rock stratum analog material in the ratio calculated, and pour in stirring machine the stirring that adds water respectively into, pour into after stirring ground floor analog material paving fill a vacancy between, strike off with scraper plate, strike off rear plank compacting, spread mica sheet on the surface as interlayer;
2.3rd step, the like, until the second layer, third layer ..., each layer analog material paving is completed complete;
3rd step, hydraulic loaded forms stable analog simulation model
After the similar materials that 3.1st step, paving are filled in places a period of time, start Horizontal jack, support jack, suspention hoisting apparatus electric switch, the tiltable frame making paving fill in similar materials is slowly set level;
3.2nd step, startup hydraulic loading device, simulated ground stress pressurizes to spreading the similar materials filled in;
After 3.3rd step, maintenance load 2-3 days, front and rear baffle is removed at interval from the top down, after interval 2-3 days, removes residue front and rear baffle, and formation similar materials model, hereinafter referred to as model, installs one piece of horizontal shelf again at model bottom simultaneously, make model stability;
4th step, gathers image by digital speckle
4.1st step, to whole model surrounded surface even application black paint, after black paint dries, then spray white paint on black paint, during sprinkling, make white paint evenly descend slowly and lightly on black lacquer painting with the form of spot, form contrast speckle field;
After 4.2nd step, lacquer painting natural air drying, lay industrial camera in a distance, model inspection surface front, by data line, industrial camera is connected with computing machine, and open industrial camera on computers and automatically gather image software, " collection image " in click tools hurdle, carries out Image Adjusting; Make whole model formation area enter in industrial camera camera lens, click " storing path " in computer software toolbar, enter storing path window, choose the position that picture will be preserved, and picture format is arranged to bmp, frame number is arranged to 1 frame/second; Be provided with, " preserve continuously " in click tools hurdle and start to gather original image;
4.3rd step, to gather after original image, pressurize to model, industrial camera acquisition and recording model, at not surface speckle image in the same time, continues after 5-6 days, clicks " the stopping preserving " in computer software toolbar, stop gathering image;
5th step, carries out whole audience displacement and strain analysis to the image gathered
By the image series that original image and interval same time gather, add in image processing software, the speckle pattern change before and after contrast distortion, carries out quantitative analysis to whole audience displacement and strain, thus obtains the parameter information of model displacement and strain field.
The beneficial effects of the utility model:
1, the utility model not only can carry out horizontal stratum resemble simulation test, can also meet the geological formations resemble simulation test of differing tilt angles.On the basis of the physical simulation test unit of prior art, by external frame, hydraulic support device and suspention hoisting apparatus multiple coordination effect, angle of inclination is not by the restriction (between 0-80 °) of device, solve the difficult problem that physical test platform model paving fills out tilted stratum analog material, ensure that empirical model is consistent with engineering reality; And implement time carry out level paving fill out, make model can not slippage, cave in, the gap tilt effect of implement device; Meanwhile, ensure that paving fills out the stability of equilibrium of model frame in process, eliminate potential safety hazard.By the rotation of bevel protractor with tiltable frame, the angle of rack inclining can be demonstrated accurately, reach the angle of inclination target required by test.Therefore the needs of present stage complicated geological rock stratum simulation can be adapted to by resemble simulation test device of the present utility model.
2, the layer structure that the analog simulation model utilizing above-mentioned utility model device and method to spread to fill out is different-thickness, utilize hydraulic loading device, portable beam realizes each layer similar materials paving and fill out uniform force in process, equal thickness compacting, make rock stratum packing and thickness reach designing requirement, ensure that the true and reliable of resemble simulation test result; Relevant technical indicator and parameter is drawn to measurement by a series of observation, be subject to the effects such as self terrestrial stress, external pressure and disturbance for geological formations under, effective supporting is taked to provide scientific basis and directive significance in the Study of Strata characteristics of motion and work progress, for geological formations safe construction provides guarantee.
3, compact, the handling safety of apparatus structure of the present utility model, paving fills out analog simulation model efficiency rapidly and efficiently and method is simple and reliable, and experiment test is convenient, the cycle is short, be convenient to observe, and simulation process is visual in image to be controlled.The angle of inclination of frame is adjusted by suspention hoisting apparatus and hydraulic support device, realize the simulation test scheme of different tilted stratum, to meet the needs of differing tilt angles rock stratum, in the physical simulation experimental study of rock stratum, there is practicality widely, there is engineering simulation Test Application prospect widely simultaneously.
Accompanying drawing explanation
Fig. 1 is one-piece construction figure of the present utility model;
Fig. 2 is that paving of the present utility model fills out analog simulation rock stratum process model figure;
Fig. 3 is that paving of the present utility model is filled out analog simulation rock stratum and completed illustraton of model;
Fig. 4 is the illustraton of model after dismounting baffle plate of the present utility model;
Fig. 5 is that each rock stratum of the present utility model spraying is black, white paint the illustraton of model formed after speckle mould;
Fig. 6 is one-piece construction side view of the present utility model;
Fig. 7 is guide rail figure of the present utility model.
In figure: 1-entablature, 2-base, 3-column, 4-pulley, 5-track, 6-Horizontal jack, 7-motor, 8-power wheel, 9-lifting rope, 10-suspension hook, 11-suspension ring, 12-front and rear baffle, 13-rotation axis, 14-support jack, 15-portable beam, 16-bevel protractor, 17-angle indicator, 18-model, 19-black paint, 20-speckle field, 21-steel plate, 22-industrial camera, 23-computing machine, 24-pressure block, 25-inner frame, 26-loads lifting jack, 27-guide rail, 28-buckle, 29-bolt.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As Fig. 1--shown in 7, a kind of rig for model test of angle adjustable, it is made up of external frame, tiltable frame, front and rear baffle, hydraulic support device, suspention hoisting apparatus; Wherein:
Described external frame comprises two vertical upright columns, 3, transverse base, 2, entablature 1 and sister block track 5.Transverse base 2 is bolted on ground, and entablature 1 interior lower end face is provided with parallel sister block track 5.Left and right vertical upright column 3 makes base 2 and entablature 1 are fixed as one by bolt.
Said external lengths of frame is 5m, highly for 3.8m, width are 0.4m.Wherein, left and right column is the tetrahedron steel plateelement that length × wide × height is respectively 0.2m × 0.3mm × 3.6m; Transverse base 2 is the trapezoidal steel plateelement of upper end face length 5m, lower end face length 5.5m, height 0.4m, width 0.4m; Entablature 1 is the tetrahedron steel plateelement that length × wide × height is respectively 5m × 0.4mm × 0.4m.The two-orbit spacing of entablature 1 inside is 0.15m.
Described hydraulic support device comprises some support jacks 14; Between the transverse base 2 of support jack 14 framework mounted externally and tiltable frame;
On the sister block track 5 of described suspention hoisting apparatus framework mounted externally, and be provided with Horizontal jack 6 on sister block track 5; Horizontal jack 6 makes suspention hoisting apparatus move around on sister block track 5; Suspention hoisting apparatus is made up of two motors 7, motor power wheel 8, lifting rope 9, suspension hook 10, pulley 4; Two motors 7 is connected by steel plate 21;
Described tiltable frame comprises inner frame 25, portable beam 15, loads lifting jack 26, pressure block 24, guide rail 27, suspension ring 11 and bevel protractor 16; The integral installation of tiltable frame is inner at outside fixed frame, and and between external frame, leave certain tilting action space; Above-mentioned portable beam 15 is movably arranged on inner frame 25 munnion, and load lifting jack 26 and be arranged on the top frame of inner frame 25, the external part bottom welding loading lifting jack 26 has pressure block 24; Above-mentioned suspension ring 11 are welded on both sides, inner frame 25 upper surface; Bottom, inner frame 25 side is hinged by rotation axis 13 and external frame base 2, and the bottom support of inner frame 25 is on support jack 14; Described bevel protractor 16 is arranged on rotation axis 13, angle indicator 17 is bolted on inner frame 25 bottom surface, bevel protractor 16 is carved with 0-90 ° of angle index, 0 scale mark overlaps with external frame base 2 upper surface and junction, inner frame 25 underframe lower surface, with tiltable gantry rotation, the angle of inclination can be demonstrated; The side frame of inner frame 25, underframe and portable beam 15 forward and backward is all processed with the open slot along frame length direction, guide rail 27 is installed in open slot, guide rail 27 is provided with several not only slidably but also the buckle 28 with threaded hole that can fix, guide rail 27 as shown in Figure 7;
Above-mentioned inner frame 25 length × wide × height is respectively 2.2m × 0.3mm × 2.8m; Wherein, side frame is the tetrahedron steel plateelement that length × wide × height is respectively 0.2m × 0.3mm × 2.8m; Hydraulic loading device is made up of 6 loading lifting jack 26, and each lifting jack can divide 2 grades of loadings; Pressure block 24 is length × wide × thick steel plate being respectively 0.33m × 0.3mm × 0.02m;
Described front and rear baffle 12 is arranged on inner frame 25, is tightened up by threaded hole buckle 28 bolt 29, forms the space that paving fills out each rock stratum similar materials.
Illustrating according to an example below utilizes rig for model test of the present utility model to carry out the method for tilted stratum physical simulation test.
Certain colliery is inclination sandstone rock stratum, 50 degree, inclination angle, in order to safe construction, to rock stratum break and the physico mechanical characteristic such as stress distribution, change in displacement of movement law and country rock is studied.Therefore, plan to carry out resemble simulation test to rock stratum, determine rock stratum test height 1.8 meters.
The method of test is as follows:
The first step, adjustment tiltable rack inclining angle
As shown in Figure 1: first determine that scale model will spread the height 1.8 meters filled out in tiltable frame, and at 1.8 meters of, portable beams 15 are installed;
As shown in Figure 2, start Horizontal jack 6, support jack 14 and suspention hoisting apparatus electric switch, motor 7 drives suspension hook 10 oscilaltion on lifting rope 9, hook tiltable frame suspension ring 11, the tiltable frame moving axis 13 that rotates is rotated, support jack 14 lifting speed is consistent with suspension hook 10 rising or falling speed of suspention hoisting apparatus, is all set to 2mm/s; Now along with the rotation of tiltable frame, Horizontal jack 6 adjusts motor 7 position of suspention hoisting apparatus simultaneously, makes the suspension force of tiltable frame keep vertical direction; Angle indicator 17 promotes with tiltable rack inclining, when angle indicator 17 points to 50 ° of scales on bevel protractor, synchronous stopping Horizontal jack 6, support jack 14, suspention hoisting apparatus switch, the angle that now tiltable frame side promotes is 50 °, the angle of inclination will simulating rock stratum;
Second step, paving fills out each rock stratum similar materials in proportion
1, as shown in Figure 2: select length and the moderate front and rear baffle 12 of width to be installed on inner frame 25, bolt buckle 28 position on adjustment guide rail 27, and it is fastening with bolt 29, make the height of front and rear baffle 12 equal ground floor and simulate the thickness that rock stratum will spread the analog material filled out, between the similar proportioning material paving of formation ground floor is filled a vacancy;
2, the raw material of experiment required ground floor simulation rock stratum analog material is taken in the ratio calculated, and pour in stirring machine the stirring that adds water respectively into, pour into after stirring ground floor analog material paving fill a vacancy between, strike off with scraper plate, strike off rear plank compacting, spread mica sheet on the surface as interlayer;
3, until the second layer, third layer ..., each layer analog material paving is completed complete.
3rd step, hydraulic loaded forms stable analog simulation model
1, as shown in Figure 3: after a period of time placed by the analog simulation model that paving is filled in, start Horizontal jack 6, support jack 14, suspention hoisting apparatus electric switch, the tiltable frame of similar materials paving being filled in the decline rate of 2mm/s is slowly set level;
2, start hydraulic loading device, simulated ground stress pressurizes to spreading the similar materials filled in;
3, as shown in Figure 4, after keeping loading 2-3 days, front and rear baffle 12 is removed at interval from the top down, after interval 2-3 days, removes residue front and rear baffle 12, forms similar materials model, hereinafter referred to as model 18;
4th step, gathers image by digital speckle
1, as shown in Figure 5, with black paint 19 to whole model 18 surrounded surface even application, after black paint 19 dries, then spray white paint on black paint 19, during sprinkling, make white paint evenly descend slowly and lightly on black lacquer painting with the form of spot, form contrast speckle field 20;
2, as shown in Figure 6, after lacquer painting natural air drying, industrial camera 22 is laid in a distance, model 18 inspection surface front, by data line, industrial camera 22 is connected with computing machine 23, and on computing machine 23, open industrial camera automatically gather image software, " collection image " in click tools hurdle, carries out Image Adjusting; Make whole model formation area enter in industrial camera 22 camera lens, click " storing path " in computing machine 23 Software tool hurdle, enter storing path window, choose the position that picture will be preserved, and picture format is arranged to bmp, frame number is arranged to 1 frame/second; Be provided with, " preserve continuously " in click tools hurdle and start to gather original image;
3, after gathering original image, start hydraulic loading device to pressurize to model, industrial camera 22 acquisition and recording model, at not surface speckle field 20 image in the same time, continues after 5-6 days, click " the stopping preserving " in computing machine 23 Software tool hurdle, stop gathering image;
5th step, carries out whole audience displacement and strain analysis to the image gathered
By the image series that original image and the interval same time chosen gather, add in image processing software, the speckle pattern change before and after contrast distortion, carries out quantitative analysis to whole audience displacement and strain, thus obtains the parameter information of model 18 displacement and strain field.
Claims (1)
1. a rig for model test for angle adjustable, is characterized in that, it is made up of external frame, tiltable frame, front and rear baffle, hydraulic support device and suspention hoisting apparatus; Wherein:
Described external frame comprises vertical upright column, transverse base, entablature and sister block track; Transverse base is bolted on ground; Entablature interior lower end face is provided with parallel sister block track, and left and right vertical upright column makes base and entablature be fixed as one by bolt;
Described hydraulic support device comprises multiple support jack; In the transverse base of support jack framework mounted externally;
On the sister block track of described suspention hoisting apparatus framework mounted externally, and be provided with Horizontal jack on sister block track; Horizontal jack makes suspention hoisting apparatus move around on sister block track; Suspention hoisting apparatus is made up of two motors, motor power wheel, lifting rope, suspension hook and pulley; Two motors is connected by steel plate;
Described tiltable frame comprises inner frame, portable beam, loading lifting jack, pressure block, guide rail, suspension ring and bevel protractor; The integral installation of tiltable frame is inner at outside fixed frame, and and between external frame, leave certain tilting action space; Above-mentioned portable beam is movably arranged on the munnion of inner frame, and load lifting jack and be arranged on the top frame of inner frame, the external part bottom welding loading lifting jack has pressure block; Above-mentioned suspension ring are welded on both sides, inner frame upper surface; Bottom, inner frame side by rotation axis and external frame base hinged, the bottom support of inner frame is on hydraulic support device; Described bevel protractor pointer is bolted on inner frame bottom surface, bevel protractor is carved with 0-90 ° of angle index, 0 scale mark overlaps with external frame base upper surface and junction, inner frame underframe lower surface, with tiltable gantry rotation, can demonstrate the angle of inclination; The side frame of inner frame, underframe and portable beam forward and backward is all processed with the open slot along frame length direction, in open slot, guide rail is installed, guide rail is provided with multiple not only slidably but also the threaded hole buckle that can fix;
Described front and rear baffle is arranged on tiltable support by threaded hole buckle, forms the space that paving fills out each rock stratum similar materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520015799.1U CN204330374U (en) | 2015-01-09 | 2015-01-09 | A kind of rig for model test of angle adjustable |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596855A (en) * | 2015-01-09 | 2015-05-06 | 山东科技大学 | Physical similar simulation test device and physical similar simulation test method for tilted stratums |
| CN105954102A (en) * | 2016-06-01 | 2016-09-21 | 中国科学院武汉岩土力学研究所 | Loading plate device of large-scale indoor true-triaxial physical simulation testing machine |
| CN108303323A (en) * | 2017-12-29 | 2018-07-20 | 中国神华能源股份有限公司 | Three-dimensional layer during similar model test rack and its test method |
| CN113870667A (en) * | 2021-09-30 | 2021-12-31 | 西安科技大学 | Novel similar material plane model frame of flexible size |
| CN114061874A (en) * | 2021-09-29 | 2022-02-18 | 华北水利水电大学 | Experimental device for simulating dynamic response of stratum in goaf under action of surface vibration |
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2015
- 2015-01-09 CN CN201520015799.1U patent/CN204330374U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596855A (en) * | 2015-01-09 | 2015-05-06 | 山东科技大学 | Physical similar simulation test device and physical similar simulation test method for tilted stratums |
| CN104596855B (en) * | 2015-01-09 | 2017-03-08 | 山东科技大学 | A kind of tilted stratum physical simulation assay device and method |
| CN105954102A (en) * | 2016-06-01 | 2016-09-21 | 中国科学院武汉岩土力学研究所 | Loading plate device of large-scale indoor true-triaxial physical simulation testing machine |
| CN108303323A (en) * | 2017-12-29 | 2018-07-20 | 中国神华能源股份有限公司 | Three-dimensional layer during similar model test rack and its test method |
| CN114061874A (en) * | 2021-09-29 | 2022-02-18 | 华北水利水电大学 | Experimental device for simulating dynamic response of stratum in goaf under action of surface vibration |
| CN114061874B (en) * | 2021-09-29 | 2023-09-01 | 华北水利水电大学 | Experimental device for simulating goaf stratum dynamic response under action of earth surface vibration |
| CN113870667A (en) * | 2021-09-30 | 2021-12-31 | 西安科技大学 | Novel similar material plane model frame of flexible size |
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| 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: 20150513 Termination date: 20170109 |