CN103803422B - A kind of hoisting device for nuclear station and installation method thereof - Google Patents
A kind of hoisting device for nuclear station and installation method thereof Download PDFInfo
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- CN103803422B CN103803422B CN201210452715.1A CN201210452715A CN103803422B CN 103803422 B CN103803422 B CN 103803422B CN 201210452715 A CN201210452715 A CN 201210452715A CN 103803422 B CN103803422 B CN 103803422B
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- wheel
- wallboard
- dolly
- hoisting device
- crossbeam
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Abstract
The invention provides a kind of hoisting device, comprise the anti-drawbar frame erecting heavy-duty machine and below thereof, described anti-heavy-duty machine of erecting comprises link span, crossbeam, dolly and cucurbit, wherein, the first level platform of factory building is fixed in described link span upper end, described crossbeam is fixedly connected with the lower end of described link span, and described dolly is arranged on also can along the orbiting motion on crossbeam on described crossbeam, and described cucurbit is arranged on described dolly; Described drawbar frame is fixedly installed in the second level platform of factory building, for described counter erect crane loading equipment time described equipment is drawn along the direction parallel with described second level platform.By the drawbar frame of the hoisting crane and the second level platform that are arranged on the first level platform, can to be sling horizontal cylindrical steam cooler by Jack, and coordinate the draw of the drawbar frame below cooling vessel, thus the cooling vessel remove its housing can sling, complete and the housing of horizontal cylindrical steam cooler is dismantled.
Description
Technical field
The present invention relates to the important weight-lifting equipment of a kind of nuclear station, particularly relate to the interior hoisting device carrying out overhauling for equipment hoisting dismounting housing of a kind of Nuclear Power Station Factory Building.
Background technology
In nuclear power plant's factory building, maintenance lifting is carried out to equipment and usually adopt the main driving lifting of steam turbine factory building.But because two differing heights places of place in the factory building of existing nuclear power plant are provided with platform, cause not lifting by the main driving of above-mentioned steam turbine factory building.Specifically, horizontal cylindrical gland sealing steam cooling vessel, when overhauling, needs lifting to remove detachable housing, and can not carry out lifting dismounting housing to cooling vessel by the main driving of existing steam turbine factory building.
Summary of the invention
The object of the present invention is to provide and a kind ofly can lift horizontal type cooler in the nuclear power plant's factory building being provided with two place's differing heights platforms and remove its housing to carry out the hoisting device overhauled.
Can not carry out lifting to cooling vessel the technical matters of dismounting housing to solve the main driving of steam turbine factory building in prior art, the invention provides a kind of hoisting device, comprise the anti-drawbar frame erecting heavy-duty machine and below thereof, described anti-heavy-duty machine of erecting comprises link span, crossbeam, dolly and cucurbit, wherein, the first level platform of factory building is fixed in described link span upper end, described crossbeam is fixedly connected with the lower end of described link span, described dolly is arranged on also can along the orbiting motion on crossbeam on described crossbeam, and described cucurbit is arranged on described dolly; Described drawbar frame is fixedly installed in the second level platform of factory building, for described counter erect crane loading equipment time described equipment is drawn along the direction parallel with described second level platform.
Preferably, described dolly comprises: wallboard, wheel, drop in beam, suspension ring, driving device, described dolly is arranged on the track of described crossbeam by described wheel, described wallboard comprises left wallboard and right wallboard, described wheel comprises left wheel and right wheel, left wheel and right wheel are separately fixed at left wallboard and are connected with described driving device with inside right wallboard, described drop in beam is arranged on below described wheel, fastening with them through left wallboard and right wallboard, described suspension ring are fixedly connected with described drop in beam, and described cucurbit is suspended on described suspension ring.
Preferably, described crossbeam is steel I-beam, and the described track of described wheel movement is formed on the bottom of described steel I-beam.
Preferably, described dolly is manual dolly, and described cucurbit is bottle gouard moved by hands.
Preferably, described driving device comprises: manual-chain, bangle wheel, transmission shaft, gear; Described manual-chain is arranged on described bangle wheel, and described bangle wheel is arranged on one end of described transmission shaft, and the other end of described transmission shaft passes described wallboard and fixedly mounts described gear, and described gear engages with described wheel.
Preferably, described manual dolly also comprises adjustment roll sleeve, and it to be arranged between described track and described drop in beam and to be fixed on described wallboard.
Preferably, described drawbar frame comprises: framework, pipe link and draw bar; Its middle frame is the rectangle frame that lower end is fixedly connected on described second level platform; Pipe link is arranged in the middle part of described rectangle frame, connects the dual-side of described rectangle frame; Described draw bar upper end is fixed on described pipe link, and lower end is positioned at described second level platform.
Preferably, the lower end of described framework and the lower end of described draw bar are bathtub construction, are connected with the Turbogrid plates detouchable that described second level platform is arranged by Connector Clip.
Preferably, described drop in beam is provided with the adjustment packing ring for adjusting width between described left wallboard and right wallboard.
Preferably, the gap between the outer rim of described wheel and described rail flanges is about 3mm.
Correspondingly, the present invention also provides a kind of installation method of above-mentioned hoisting device, described method comprises: install counter erect heavy-duty machine and install drawbar frame, anti-heavy-duty machine of erecting wherein is installed and specifically comprises the following steps: S1, by described link span by pressing plate and described first level platform being bolted to factory building; S2, described crossbeam is fastened to described link span lower end; S3, by described pressing plate and described link span segmentation spot welding; S4, described dolly is installed on the track of described crossbeam.
Preferably, described step S4 comprises: regulate the quantity of the described adjustment packing ring of the inside and outside both sides of described left wallboard and right wallboard to ensure that the gap between the outer rim of described wheel and described rail flanges is about 3mm; The gap regulating adjustment roll sleeve and described track bottom surface is predetermined value; Tighten described drop in beam side for the jam nut fastening with described wallboard, described cucurbit hangs up underload trail run, until described wheel all with described rail contact after, tighten described drop in beam opposite side for the jam nut fastening with described wallboard.
Preferably, drawbar frame is installed specifically to comprise the following steps: S1, to be fixedly connected with by the bathtub construction of Connector Clip with described framework lower end at the first desired location of described Turbogrid plates; S2, described draw bar lower end is fixed on the second desired location of described Turbogrid plates by Connector Clip.
Hoisting device provided by the invention is by the drawbar frame of the hoisting crane and the second level platform that are arranged on the first level platform, can to be sling horizontal cylindrical steam cooler by Jack, and coordinate the draw of the drawbar frame below cooling vessel, thus the cooling vessel remove its housing can sling, complete the housing dismounting to horizontal cylindrical steam cooler and maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the hoisting device that the embodiment of the present invention provides;
Fig. 2 is the anti-structural representation erecting heavy-duty machine in the hoisting device shown in Fig. 1;
Fig. 3 a is the front elevation of the drawbar frame in the hoisting device shown in Fig. 1;
Fig. 3 b is the structure birds-eye view of the drawbar frame in the hoisting device shown in Fig. 1;
Fig. 4 is the structural representation of the anti-manual dolly erected in heavy-duty machine shown in Fig. 2.
Detailed description of the invention
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
See also Fig. 1 to Fig. 4, embodiments provide a kind of hoisting device.It comprises and instead erects heavy-duty machine and drawbar frame 5 as shown in Figure 1, anti-heavy-duty machine of erecting comprises link span 1, crossbeam 2, dolly 3 and cucurbit 4, the link span 1 that the anti-implication erecting " anti-frame " in heavy-duty machine refers to as shown in Figure 1 is positioned at top, connecting cross beam 2 and factory building first level platform 6 of crossbeam 2.The first level platform 6 of factory building is fixed in described link span 1 upper end, described crossbeam is fixedly connected with the lower end of described link span, the fixed form of concrete employing can have multiple, comprise welding, bolt connection etc., described dolly 3 is arranged on also can along the orbiting motion on crossbeam 2 on described crossbeam 2, and described cucurbit 4 is arranged on described dolly 3.Described drawbar frame 5 is fixedly installed in the second level platform 7 of factory building, for described counter erect crane loading equipment time described equipment is drawn along the direction parallel with described second level platform.Specifically, in the present embodiment, the second level platform 7 surface is the plane of a level, carries out drawing namely draw along the direction with this plane-parallel along the direction parallel with described second level platform.The needs that the concrete height of the first level platform 6 and the second level platform 7 and position can use according to reality and factory building condition set, and in the present embodiment, the height of the first level platform 6 is chosen as 16.2m, and the height of the second podium level 7 is chosen as 6.2m.As shown in Figure 1, the second level platform 7 is dismantled the housing of tubular equipment.Specifically, be that hoisting crane equipment of slinging leaves the second level platform 7 certain distance, equipment contacts with drawbar frame 6 and by drawbar frame in the traction along the second level platform parallel direction, the housing of equipment can be dismantled.
As depicted in figs. 1 and 2, in the present embodiment, crossbeam 2 is preferably steel I-beam, in other embodiments, crossbeam 2 also can select the girder steel of other models or the beam of other materials, such as H-shaped girder steel etc., and this should be that those skilled in the art have the ability to anticipate.The track of described dolly 3 motion is formed on the bottom of described steel I-beam.The bottom of steel I-beam has certain thickness, comprises upper surface and bottom surface, and dolly 3 moves at upper surface.In the present embodiment, described dolly 3 is manual dolly, and described cucurbit 4 is bottle gouard moved by hands.As shown in Figure 1, the number of the dolly 3 crossbeam 2 installed can be multiple.
The structure of drawbar frame 5 as shown in Figure 3 a and Figure 3 b shows, drawbar frame 5 may be selected to be removable steel structure, it comprises: framework 51, pipe link 52 and draw bar 53, its middle frame 51 is specially rectangle frame, its lower end is fixedly mounted on the second level platform 7, fixed form can adopt pin to connect, the modes such as screw connection, pipe link 52 is positioned at the dual-side of connecting frame 51 in the middle part of framework 51, play effect that is stable and reinforced frame 51, draw bar 53 is specially a brace in the present embodiment, its upper end is fixed on pipe link 52, its lower end is arranged on the second level platform 7.As shown in Fig. 1 and Fig. 3 a and Fig. 3 b, tubular equipment is placed on the second level platform 7, coordinates the draw of draw bar 53, can complete the dismounting of tubular apparatus casing by the lifting of hoisting crane.Specifically, the lower end of framework 51 and the lower end of draw bar 53 are bathtub construction, are connected with the Turbogrid plates detouchable that described second level platform 7 is arranged by Connector Clip.Namely by arranging the bathtub construction (being specially channel-section steel in the present embodiment) of the lower end of Turbogrid plates and framework 51 and draw bar 53 on the second level platform 7, fixed traction frame 5, and by dismantling the connection of channel-section steel and Turbogrid plates, then channel-section steel is fixed on the another location of Turbogrid plates, just can change the position of drawbar frame on the second level platform, thus the convenient traction to each location device.
The concrete structure of manual dolly 3 as shown in Figure 4, described dolly comprises: wallboard, wheel 31, drop in beam 35, suspension ring 28, driving device, wallboard specifically comprises left wallboard 314 and right wallboard 37, wheel 31 also comprises left wheel and right wheel, concrete number as wheel can be determined according to actual needs, does not repeat them here.Left wheel and right wheel are separately fixed at the inner side of left wallboard 314 and right wallboard 37, and as shown in Figure 2, the medial side of two wallboards is inner side, and two avris are outside.Wheel 31 is connected with driving device, with the motion by driving device band motor car wheel 31.Drop in beam 35 is arranged on below wheel 31, jam nut 311 is also passed through fastening with them through left wallboard 314 and right wallboard 37, suspension ring 38 are arranged on the about center position between left wallboard 314 and right wallboard 37, thus ensure operating steadily of the steady and wheel 31 lifted by crane.Suspension ring 38 are fixedly connected with described drop in beam 35, and cucurbit 5 is suspended on described suspension ring 38.
The mode that driving device adopts can be various, and according to selecting electric transmission or mechanical drive, mechanical drive also can combine various ways such as gear transmission, Chain conveyer, V belt translation.As shown in Figure 4, driving device comprises the preferred mode of the one provided in the present embodiment: manual-chain 36, bangle wheel 33, transmission shaft 34, gear 32; Manual-chain 36 is arranged on bangle wheel 33, and bangle wheel 33 is arranged on one end of transmission shaft 34, and the other end of transmission shaft 34 passes right wallboard 37 and fixedly mounts gear 32, gear 32 and wheel 31 engaged transmission.So, rotation manual chain 36, drives bangle wheel 33 to rotate, drive transmission shaft 34 to rotate, and then driven gear 32 rotates, and finally makes wheel 31 rotate and runs on the track of steel I-beam.It should be noted that, driving device is arranged on the left side or the right and is all fine, if driving device is arranged on the left side, then transmission shaft 34 is through left wallboard 314.
As shown in Figure 4, manual dolly also comprises adjustment roll sleeve 9, and it arranges between steel I-beam track bottom surface and drop in beam 36, for after manual dolly is installed, regulates the clearance G of adjustment roll sleeve 9 and steel I-beam track bottom surface to predetermined value.Concrete method of adjustment is: unscrew nut 13. and move roll sleeve axle 12 and make clearance G reach predetermined value, then at fastening nut 13, fastening with left wallboard 314.
Drop in beam 35 is provided with adjustment packing ring 310, adjustable adjustment packing ring 310 be placed on inside wallboard or outside to adapt to different steel I-beam track width b.For the manual hand cart in the present embodiment, the adjusting pad number of turns outside right wallboard 37 is fixed as 1.
As shown in Figure 4, gap F between the outer rim of wheel 31 and the steel I-beam edge of a wing is about 3mm, the edge of a wing of steel I-beam refers to the outer ledge bottom steel I-beam, left outer marginal gap F bottom corresponding is left wheel and steel I-beam is about 3mm, right hand edge gap, outside F bottom right wheel and steel I-beam is about 3mm, namely keeps wheel 31 to be 3mm with the gap of rail flanges.
The embodiment of the present invention additionally provides the installation method of above-mentioned hoisting device, described method comprises: install counter erect heavy-duty machine and install drawbar frame, anti-heavy-duty machine of erecting wherein is installed and specifically comprises the following steps: S1, by described link span by pressing plate and described first level platform being bolted to factory building; S2, described crossbeam is fastened to described link span lower end; S3, by described pressing plate and described link span segmentation spot welding; S4, described dolly is installed on the track of described crossbeam.
Described step S4 specifically comprises: regulate the quantity of the described adjustment packing ring of the inside and outside both sides of described left wallboard and right wallboard to ensure that the gap between the outer rim of described wheel and described rail flanges is about 3mm;
The gap regulating adjustment roll sleeve and described track bottom surface is predetermined value;
Tighten described drop in beam side for the jam nut fastening with described wallboard, described cucurbit hangs up underload trail run, until described wheel all with described rail contact after, tighten described drop in beam opposite side for the jam nut fastening with described wallboard.
It should be noted that there is no inevitable precedence relationship between the concrete install and adjust step of above-mentioned steps S4, can adjust sequencing.
The hoisting device of the present embodiment is by the drawbar frame of the hoisting crane and the second level platform that are arranged on the first level platform, can to be sling horizontal tubular equipment by Jack, and coordinate the draw of the drawbar frame of below, thus the tubular equipment remove its housing can sling, complete apparatus casing dismounting and maintenance.
Drawbar frame is installed specifically comprise the following steps: be fixedly connected with by the bathtub construction of Connector Clip with described framework lower end at the first desired location of described Turbogrid plates; Described draw bar lower end is fixed on the second desired location of described Turbogrid plates by Connector Clip.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (12)
1. a hoisting device, comprise the anti-drawbar frame erecting heavy-duty machine and below thereof, it is characterized in that, described anti-heavy-duty machine of erecting comprises link span, crossbeam, dolly and cucurbit, wherein, the first level platform of factory building is fixed in described link span upper end, and described crossbeam is fixedly connected with the lower end of described link span, described dolly is arranged on also can along the orbiting motion on crossbeam on described crossbeam, and described cucurbit is arranged on described dolly; Described drawbar frame is fixedly installed in the second level platform of factory building, for described counter erect crane loading equipment time described equipment is drawn along the direction parallel with described second level platform; Described dolly comprises: wallboard, wheel, drop in beam, suspension ring, driving device, described dolly is arranged on the track of described crossbeam by described wheel, described wallboard comprises left wallboard and right wallboard, described wheel comprises left wheel and right wheel, left wheel and right wheel are separately fixed at left wallboard and are connected with described driving device with inside right wallboard, described drop in beam is arranged on below described wheel, fastening with them through left wallboard and right wallboard, described suspension ring are fixedly connected with described drop in beam, and described cucurbit is suspended on described suspension ring.
2. hoisting device according to claim 1, is characterized in that, described crossbeam is steel I-beam, and the described track of described wheel movement is formed on the bottom of described steel I-beam.
3. hoisting device according to claim 2, is characterized in that, described dolly is manual dolly, and described cucurbit is bottle gouard moved by hands.
4. hoisting device according to claim 3, is characterized in that, described driving device comprises: manual-chain, bangle wheel, transmission shaft, gear; Described manual-chain is arranged on described bangle wheel, and described bangle wheel is arranged on one end of described transmission shaft, and the other end of described transmission shaft passes described wallboard and fixedly mounts described gear, and described gear engages with described wheel.
5. hoisting device according to claim 4, is characterized in that, described manual dolly also comprises adjustment roll sleeve, and it to be arranged between described track and described drop in beam and to be fixed on described wallboard.
6. the hoisting device according to any one of claim 1-5, is characterized in that, described drawbar frame comprises: framework, pipe link and draw bar; Its middle frame is the rectangle frame that lower end is fixedly connected on described second level platform; Pipe link is arranged in the middle part of described rectangle frame, connects the dual-side of described rectangle frame; Described draw bar upper end is fixed on described pipe link, and lower end is positioned at described second level platform.
7. hoisting device according to claim 6, is characterized in that, the lower end of described framework and the lower end of described draw bar are bathtub construction, is connected with the Turbogrid plates detouchable that described second level platform is arranged by Connector Clip.
8. hoisting device according to claim 7, is characterized in that, described drop in beam is provided with the adjustment packing ring for adjusting width between described left wallboard and right wallboard.
9. hoisting device according to claim 8, is characterized in that, the gap between the outer rim of described wheel and described rail flanges is about 3mm.
10. an installation method for the hoisting device as described in any one of claim 1-9, is characterized in that, described method comprises: install counter erect heavy-duty machine and install drawbar frame, anti-heavy-duty machine of erecting wherein is installed and specifically comprises the following steps:
S1, by described link span by pressing plate and described first level platform being bolted to factory building;
S2, described crossbeam is fastened to described link span lower end;
S3, by described pressing plate and described link span segmentation spot welding;
S4, described dolly is installed on the track of described crossbeam.
The installation method of 11. hoisting device according to claim 10, is characterized in that, described step S4 comprises:
Regulate the quantity of the described adjustment packing ring of the inside and outside both sides of described left wallboard and right wallboard to ensure that the gap between the outer rim of described wheel and described rail flanges is about 3mm;
The gap regulating adjustment roll sleeve and described track bottom surface is predetermined value;
Tighten described drop in beam side for the jam nut fastening with described wallboard, described cucurbit hangs up underload trail run, until described wheel all with described rail contact after, tighten described drop in beam opposite side for the jam nut fastening with described wallboard.
The installation method of 12. hoisting device according to claim 10, is characterized in that, installs drawbar frame and specifically comprises the following steps:
A1, to be fixedly connected with by the bathtub construction of Connector Clip with described framework lower end at the first desired location of described Turbogrid plates;
A2, described draw bar lower end is fixed on the second desired location of described Turbogrid plates by Connector Clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452715.1A CN103803422B (en) | 2012-11-13 | 2012-11-13 | A kind of hoisting device for nuclear station and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452715.1A CN103803422B (en) | 2012-11-13 | 2012-11-13 | A kind of hoisting device for nuclear station and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103803422A CN103803422A (en) | 2014-05-21 |
| CN103803422B true CN103803422B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210452715.1A Expired - Fee Related CN103803422B (en) | 2012-11-13 | 2012-11-13 | A kind of hoisting device for nuclear station and installation method thereof |
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| CN (1) | CN103803422B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498295B (en) * | 2017-07-19 | 2019-08-09 | 东方电气(广州)重型机器有限公司 | A kind of bushing device and its assembling method for piping and cylinder |
| CN107738986B (en) * | 2017-11-23 | 2024-04-05 | 国家电网公司 | Full-manual maintenance-free simple hoisting system |
| CN108639966A (en) * | 2018-06-29 | 2018-10-12 | 中国能源建设集团山西电力建设有限公司 | Heat power plant boiler economizer hand installs mechanism in place and installation method |
| CN109665443B (en) * | 2018-12-07 | 2020-08-25 | 山东核电设备制造有限公司 | Annular crane without supporting legs and provided with cantilever truss and hoisting method |
| CN115303993A (en) * | 2022-08-31 | 2022-11-08 | 中国二十二冶集团有限公司 | Platform-free installation method for track beam of single-beam crane in factory building |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2127934Y (en) * | 1992-07-22 | 1993-03-10 | 煤炭工业部石家庄煤矿设计研究院 | Lift for changeable container |
| CN201458582U (en) * | 2009-05-26 | 2010-05-12 | 北京首钢建设集团有限公司 | Ladle turret bay transverse movement hoisting tool |
| CN201756413U (en) * | 2010-07-15 | 2011-03-09 | 天津起重设备有限公司 | Circular travel crane with electric over-rail |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0753189A (en) * | 1993-08-10 | 1995-02-28 | Toshiba Eng & Constr Co Ltd | Installation device for equipment |
| KR100876675B1 (en) * | 2007-10-11 | 2009-01-07 | 범동건설(주) | Gantry crane for replacing generator and method of replacing generator thereof |
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2012
- 2012-11-13 CN CN201210452715.1A patent/CN103803422B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2127934Y (en) * | 1992-07-22 | 1993-03-10 | 煤炭工业部石家庄煤矿设计研究院 | Lift for changeable container |
| CN201458582U (en) * | 2009-05-26 | 2010-05-12 | 北京首钢建设集团有限公司 | Ladle turret bay transverse movement hoisting tool |
| CN201756413U (en) * | 2010-07-15 | 2011-03-09 | 天津起重设备有限公司 | Circular travel crane with electric over-rail |
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| CN103803422A (en) | 2014-05-21 |
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| CB02 | Change of applicant information |
Address after: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Applicant after: China General Nuclear Power Corporation Applicant after: Dayawan Nuclear Power Running Management Co., Ltd. Address before: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city in Guangdong province 518031 17-19 floor Applicant before: China Guangdong Nuclear Power Group Co., Ltd. Applicant before: Dayawan Nuclear Power Running Management Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: CHINA GUANGDONG NUCLEAR POWER GROUP CO., LTD. TO: CHINA GENERAL NUCLEAR GROUP CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20191113 |