CN105714751B - Steel wire rope balances device for climbing rope entirely - Google Patents
Steel wire rope balances device for climbing rope entirely Download PDFInfo
- Publication number
- CN105714751B CN105714751B CN201610213514.4A CN201610213514A CN105714751B CN 105714751 B CN105714751 B CN 105714751B CN 201610213514 A CN201610213514 A CN 201610213514A CN 105714751 B CN105714751 B CN 105714751B
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- Prior art keywords
- steel wire
- wire rope
- rope
- climbing
- entirely
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C5/00—Mechanisms for lifting ships vertically
Abstract
The invention discloses a kind of steel wire rope to balance device for climbing rope entirely, and it includes steel wire rope device for climbing rope and bascule, and the steel wire rope device for climbing rope includes bogey, power set, transmission device and guide wheel device, and bogey includes substrate, cladding plate and enclosing；Power set and transmission device are fixed on bogey；Transmission device is made up of two secondary worm and gears, and it is contacted with power set by gear pair；Guide wheel device is made up of four pairs of guide wheels, wherein two pairs of guide wheels are arranged on transmission device, another two pairs of guide wheels are arranged on bogey.The present invention can complete to climb or down maneuver in groups on steel wire rope, driven by worm and gear, synchronism is good, it can prevent that slippery anti-side is inclined, Non-Destructive Testing task of the completion of ship railway carriage or compartment under static state rapidly and efficiently to steel wire rope can be disclosure satisfy that as the effective carrier of various instrument and equipments in towering the facility in groups installation of steel wire rope and operating maintenance.
Description
Technical field
The present invention relates to device for climbing rope technical field, and in particular to steel wire rope balances rope climbing dress to a kind of towering facility entirely in groups
Put.
Background technology
Steel wire rope is relatively conventional in large scale industry engineering and Hydraulic and Hydro-Power Engineering construction and operation, and steel wire rope is logical in groups
Navigate in facility using more, for example Burner zone ship lift and Three-Gorges Ship-lift are that balance is vertical entirely for worldwide largest one-level
Ship lift, the weight of ship railway carriage or compartments and counterweight is balanced using 128 φ 76mm and 256 φ 74mm high-carbon steel steel wire ropes respectively, both
Rope capacity more than 140m.Inevitably twist, turn round under the effect of itself rotating force when steel wire rope is installed
The change of team causes a certain degree of loose stock of steel wire rope, is unable to reach design and the stress of factory inspection and acceptance, to rope service-life and
Safety impacts.In addition, need to detect the state of wear of steel wire rope during ship elevator annual repairs, because ship lift reaches upper pole
Still have with a distance from about 50 meters from top when spacing, the fixed EDDY CURRENT means of tradition are difficult to total travel detection, in addition during annual repairs
Between urgent and ship railway carriage or compartment be in stopped status, can not no-load running carry out wire rope standard, these situations determine the inspection of steel wire rope
Portable detection means must be used by repairing.
The content of the invention
Instant invention overcomes the deficiencies in the prior art, there is provided a kind of steel wire rope balances device for climbing rope entirely, for solving in groups
Steel wire rope is in installation or operating maintenance in the presence of the technical problem that climbing is inconvenient.
In view of the above mentioned problem of prior art, according to one side disclosed by the invention, the present invention uses following technology
Scheme：
A kind of steel wire rope balances device for climbing rope entirely, and it includes steel wire rope device for climbing rope and bascule, and the steel wire rope is climbed
Rope device includes bogey, power set, transmission device and guide wheel device；The power set, transmission device and guide wheel dress
Install and be placed in the bogey；The transmission device includes output gear, travelling gear, turbine and scroll bar, the output
Gear is connected with the power set, and the travelling gear is two, and two travelling gears engage with the output gear respectively,
The scroll bar is two, and two travelling gears are respectively arranged on a scroll bar, two using the travelling gear on every scroll bar as boundary
Side respectively sets one section of scroll bar tooth, and the turbine is four, and four turbines respectively engage with one section of scroll bar tooth；The guide wheel device includes
The four groups of guide wheels that can be rotated on bogey and relative to the bogey are arranged at, every group of guide wheel is included positioned at same vertical
Two guide wheels in direction, the steel wire rope through the bogey are two, two groups of guide wheels of the side in four groups of guide wheels
Coordinate with steel cable, two groups of guide wheels and the another steel cable of opposite side coordinate；Two groups coordinated with steel cable are led
One group in wheel and one group in two groups of guide wheels coordinating with another steel cable are in same rotation with four turbines respectively
On axle；The bascule includes the first clamping device, the second clamping device, equalizer pulley, balance rope and balancing weight, the steel
Cord device for climbing rope top is provided with carrier aircraft platform, and first clamping device is two pieces, and second clamping device is one piece,
First clamping device and second clamping device are engaged and are clamped on the steel wire rope, and the equalizer pulley is arranged on
Between two piece of first clamping device, described balance rope one end is connected with the carrier aircraft platform, and the balance rope other end bypasses institute
It is connected again with the steel wire rope device for climbing rope bottom after stating equalizer pulley.
In order to which the present invention is better achieved, further technical scheme is：
According to one embodiment of the invention, the bogey includes enclosing, substrate and cladding plate, and the enclosing is trapped among
The substrate edge, the cladding plate are connected with the enclosing, and the enclosing and substrate are all divided into three parts, the enclosing and
The substrate all includes center section and left and right two parts respectively, and the enclosing and the substrate each three parts formed it is whole
The connecting sewing of body is on two perpendiculars.
According to another embodiment of the invention, left and right two parts of the enclosing and center section by connecting plate and
Bolt connection is fixed.
According to another embodiment of the invention, set along the enclosing at the connecting sewing on described two perpendiculars
For the hole of two steel wire penetratings.
According to another embodiment of the invention, one group in the two groups of guide wheels coordinated with steel cable and
One group of rotary shaft in the two groups of guide wheels coordinated with another steel cable is connected with the substrate center section, remaining guide wheel
Rotary shaft connects with corresponding substrate left half or right half.
According to another embodiment of the invention, the grooving for being caught in steel wire rope is provided with the guide wheel.
According to another embodiment of the invention, the guide wheel uses stretchy nylon material.
According to another embodiment of the invention, the substrate back is disposed with reserved instrument position and counterweight position.
According to another embodiment of the invention, the power set include motor, speed changer and controller, the electricity
The output shaft of machine is connected with the speed changer, and the output shaft of the speed changer is connected with the output gear, the controller with
The motor electrical connection.
The present invention can also be：
According to another embodiment of the invention, two scroll bars are symmetrically set with the output gear central axis
Put.
Compared with prior art, one of beneficial effects of the present invention are：
A kind of steel wire rope of the present invention balances device for climbing rope entirely, can be real with less driving force using full balance mode
The lifting of existing device, worm and gear driving, synchronism is good, prevents that slippery anti-side is inclined, has larger bearing capacity, can carry more
Detection device, and portable power supplies can be carried, avoid long range supply line；Steel wire rope can carry torsion when installing and check
Device, the detection means such as optics and electromagnetism can be carried during steel wire rope inspection and repair system, disclosure satisfy that ship railway carriage or compartment is quick under static state
It is efficiently completed the Non-Destructive Testing task to steel wire rope.
Brief description of the drawings
, below will be to embodiment for clearer explanation present specification embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in the description of prior art, it should be apparent that, drawings in the following description are only
It is the reference to some embodiments in present specification, for those skilled in the art, is not paying creative work
In the case of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows steel wire rope device for climbing rope overall structure diagram according to an embodiment of the invention.
Fig. 2 shows steel wire rope device for climbing rope internal structure schematic diagram according to an embodiment of the invention.
Fig. 3 shows positive structure schematic inside steel wire rope device for climbing rope according to an embodiment of the invention.
Fig. 4 shows steel wire rope device for climbing rope back structures schematic diagram according to an embodiment of the invention.
Fig. 5 shows steel wire rope device for climbing rope top structure schematic diagram according to an embodiment of the invention.
Fig. 6 shows power set, transmission device and guide wheel device structural representation according to an embodiment of the invention.
Fig. 7 shows that power set, transmission device and guide wheel device Facad structure according to an embodiment of the invention show
It is intended to.
Fig. 8 shows that steel wire rope according to an embodiment of the invention balances device for climbing rope overall structure diagram entirely.
Fig. 9 shows that steel wire rope according to an embodiment of the invention balances device for climbing rope partial structural diagram entirely.
Figure 10 shows that steel wire rope in accordance with another embodiment of the present invention balances device for climbing rope partial structural diagram entirely.
Figure 11 shows bascule partial structural diagram in accordance with another embodiment of the present invention.
Wherein, it is entitled corresponding to the reference in accompanying drawing：
1- bogeys, 2- power set, 3- transmission devices, 4- guide wheel devices, 5- output gears, 6- driving cogs
Wheel, 7- turbines, 8- scroll bars, 9- scroll bar teeth, 10- guide wheels, 11- steel wire ropes, 12- enclosings, 13- substrates, 14- cladding plates,
15- connecting sewings, 16- connecting plates, 17- counterweights position, 18- bascules, 19- carrier aircraft platforms, the clamping devices of 20- first,
The clamping devices of 21- second, 22- equalizer pulleys, 23- balance ropes, 24- balancing weights.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
A kind of steel wire rope balances device for climbing rope entirely, and it includes steel wire rope device for climbing rope and bascule 18, the steel wire rope
For device for climbing rope as shown in Fig. 1~Fig. 5, it includes bogey 1, power set 2, transmission device 3 and guide wheel device 4；It is described dynamic
Power apparatus 2, transmission device 3 and guide wheel device 4 are arranged in the bogey 1；The transmission device 3 include output gear 5,
Travelling gear 6, turbine 7 and scroll bar 8, the output gear 5 are connected with the power set 2, and the travelling gear 6 is two,
Two travelling gears 6 engage with the output gear 5 respectively, and the scroll bar 8 is two, and two travelling gears 6 are respectively arranged on one
On root scroll bar 8, the both sides with the travelling gear 6 on every scroll bar 8 for boundary respectively set one section of scroll bar tooth 9, and the turbine 7 is four
Individual, four turbines 7 respectively engage with one section of scroll bar tooth 9；Two scroll bars 8 are symmetrical arranged with the central axis of output gear 5；
Condition of self-locking can be met by adjusting the pressure angle of worm screw 8；The guide wheel device 4 includes being arranged on bogey 1 and can
The four groups of guide wheels 10 rotated relative to the bogey 1, every group of guide wheel 10 include two guide wheels 10 positioned at same vertical direction,
Steel wire rope 11 through the bogey 1 is two, the two groups of guide wheels 10 and a steel of the side in four groups of guide wheels 10
Cord 11 coordinates, and two groups of guide wheels 10 and the another steel cable 11 of opposite side coordinate；Two groups coordinated with steel cable 11 are led
Take turns one group in 10 and be in same with four turbines 7 respectively with one group in two groups of guide wheels 10 of another steel cable 11 cooperation
In one rotary shaft, i.e., by turbine 7 drive corresponding to guide wheel 10 rotate together, rotary shaft herein can be it is overall or
The guide wheel shaft of guide wheel 10 is connected the rotary shaft to be formed with the turbine wheel shaft of turbine 7.The both ends of rotary shaft can be separately fixed at carrying
On the substrate 13 and cladding plate 14 of device 1, cladding plate 14 is fastened by bolts with rotary shaft, and bearing and guide wheel 10 can be set in rotary shaft
Or turbine 7 links.
Bogey 1 can be made up of rigid structural member, and it may include enclosing 12, substrate 13 and cladding plate 14, the enclosing 12
The edge of substrate 13 is trapped among, the cladding plate 14 is connected with the enclosing 12, and the enclosing 12 and substrate 13 can all be divided into
Three parts, specifically, the enclosing 12 and the substrate 13 all include center section and left and right two parts, and the enclosing respectively
12 and the overall connecting sewing 15 that is formed of 13 respective three parts of the substrate on two perpendiculars, you can find out connecting sewing
15 substantially two.
Left and right two parts of enclosing 12 are fixed with center section by connecting plate 16 and bolt connection.
The hole passed through for two steel wire ropes 11 is set along the enclosing 12 at the connecting sewing 15 on described two perpendiculars,
With steel cable 11 coordinate two groups of guide wheels 10 in one group and with another steel cable 11 coordinate two groups of guide wheels 10 in
One group of rotary shaft be connected with the center section of substrate 13, the rotary shaft of remaining guide wheel 10 and the corresponding left half of substrate 13
Or right half connection.
Guide wheel 10 can use stretchy nylon material, and the grooving for being caught in steel wire rope 11 is provided with guide wheel 10.
The back of substrate 13 is disposed with reserved instrument position and counterweight position 17.
Power set 2 include motor, speed changer and controller, and the output shaft of the motor is connected with the speed changer, institute
The output shaft for stating speed changer is connected with the output gear 5, and the controller electrically connects with the motor.
As shown in Fig. 8~Figure 11, bascule 18 includes the first clamping device 20, the second clamping device 21, equalizer pulley
22nd, balance rope 23 and balancing weight 24, the steel wire rope device for climbing rope top are provided with carrier aircraft platform 19, first clamping device
20 be two pieces, and second clamping device 21 is one piece, and the first clamping device 20 is engaged with the second clamping device 21 and is clamped in
On the steel wire rope 11, the equalizer pulley 22 is arranged between two piece of first clamping device 20, it is described balance rope 23 one end with
The carrier aircraft platform 19 connects, and 23 other ends of the balance rope fill with the steel wire rope rope climbing again after bypassing the equalizer pulley 22
Put bottom connection.
The device of above example description, it is in a situation of use where, it may include following steps：
The first step, cladding plate and the bolt on enclosing, transmission device and guide wheel device pedestal for first releasing bogey, are opened
Cladding plate.
Second step, package unit is divided into three parts at substrate and enclosing parting, and center section is placed on two steel
Between cord, left and right part is individually positioned on the outside of two steel wire ropes, by wire line shoe in the grooving of guide wheel.
3rd step, make two steel wire ropes be in through package unit state, adjust connector on enclosing and fastening bolt is to whole
Covering device neither glides nor stuck.
4th step, cladding plate, fastening cladding plate and tumbler and the bolt of guide wheel device pedestal are covered, adjust and couple cladding plate
With the bolt of enclosing.
5th step, balance, which is restricted through equalizer pulley, and by clamping device, to be fixed on detected steel wire rope, puts down balance
Rope, its upper end is connected to above carrier aircraft platform, its lower end is connected to below enclosing.
6th step, the detection device for loading onto in carrier aircraft platform carrying, the power supply box at substrate back load onto portable power supplies,
It is powered and detects the state of each equipment, suitable balancing weight of improving quality is connected in balance rope upper end.
7th step, start examination lifting, observation device running status, contact of the guide wheel with steel wire rope are suitably adjusted according to effect
Situation, meet formally to use after requiring.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be with it is other
The difference of embodiment, identical similar portion cross-reference between each embodiment.
" one embodiment " for being spoken of in this manual, " another embodiment ", " embodiment ", etc., refer to tying
Specific features, structure or the feature for closing embodiment description are included at least one embodiment of the application generality description
In.It is not necessarily to refer to same embodiment that statement of the same race, which occur, in multiple places in the description.Appoint furthermore, it is understood that combining
When one embodiment describes a specific features, structure or feature, what is advocated is this to realize with reference to other embodiment
Feature, structure or feature are also fallen within the scope of the present invention.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in this Shen
Please be within disclosed spirit and spirit.More specifically, can be to master in the range of disclosure and claim
The building block and/or layout for inscribing composite configuration carry out a variety of variations and modifications.Except what is carried out to building block and/or layout
Outside variations and modifications, to those skilled in the art, other purposes also will be apparent.
Claims (10)
1. a kind of steel wire rope balances device for climbing rope entirely, it is characterised in that it includes steel wire rope device for climbing rope and bascule (18),
The steel wire rope device for climbing rope includes bogey (1), power set (2), transmission device (3) and guide wheel device (4)；It is described dynamic
Power apparatus (2), transmission device (3) and guide wheel device (4) are arranged in the bogey (1)；The transmission device (3) includes
Output gear (5), travelling gear (6), turbine (7) and scroll bar (8), the output gear (5) connect with the power set (2)
Connect, the travelling gear (6) is two, and two travelling gears (6) are engaged with the output gear (5) respectively；The scroll bar (8)
For two, two travelling gears (6) are respectively arranged on a scroll bar (8), with the travelling gear (6) on every scroll bar (8) for boundary
Both sides respectively set one section of scroll bar tooth (9), the turbine (7) be four, four turbines (7) are respectively engaged with one section of scroll bar tooth (9)；
The guide wheel device (4) includes being arranged at the four groups of guide wheels that can be rotated on bogey (1) and relative to the bogey (1)
(10), every group of guide wheel (10) includes two guide wheels (10) positioned at same vertical direction, the steel wire through the bogey (1)
Rope (11) is two, and two groups of guide wheels (10) and the steel cable (11) of the side in four groups of guide wheels (10) coordinate, another
Two groups of guide wheels (10) of side coordinate with another steel cable (11)；In the two groups of guide wheels (10) coordinated with steel cable (11)
One group and with another steel cable (11) coordinate two groups of guide wheels (10) in one group respectively with four turbines (7) be in it is same
In rotary shaft；The bascule (18) include the first clamping device (20), the second clamping device (21), equalizer pulley (22),
Balance rope (23) and balancing weight (24), the steel wire rope device for climbing rope top are provided with carrier aircraft platform (19), and described first clamps
Device (20) is two pieces, and second clamping device (21) is one piece, and first clamping device (20) and described second clamps
Device (21), which is engaged, to be clamped on the steel wire rope (11), and the equalizer pulley (22) is arranged on two piece of first clamping device
(20) between, described balance rope (23) one end is connected with the carrier aircraft platform (19), and described balance rope (23) other end bypasses institute
It is connected again with the steel wire rope device for climbing rope bottom after stating equalizer pulley (22).
2. steel wire rope according to claim 1 balances device for climbing rope entirely, it is characterised in that the bogey (1) includes enclosing
Keep off (12), substrate (13) and cladding plate (14), the enclosing (12) is trapped among the substrate (13) edge, the cladding plate (14) and
Enclosing (12) connection, the enclosing (12) and substrate (13) are all divided into three parts, the enclosing (12) and the substrate
(13) center section and left and right two parts are all included respectively, and each three parts are formed for the enclosing (12) and the substrate (13)
Overall connecting sewing (15) on two perpendiculars.
3. steel wire rope according to claim 2 balances device for climbing rope entirely, it is characterised in that the left and right two of the enclosing (12)
Part is fixed with center section by connecting plate (16) and bolt connection.
4. steel wire rope according to claim 2 balances device for climbing rope entirely, it is characterised in that along described two perpendiculars
Connecting sewing (15) place enclosing (12) on the hole passed through for two steel wire ropes (11) is set.
5. steel wire rope according to claim 4 balances device for climbing rope entirely, it is characterised in that described and steel cable (11)
One group in the two groups of guide wheels (10) coordinated and one group in two groups of guide wheels (10) coordinating with another steel cable (11)
Rotary shaft is connected with the substrate (13) center section, the rotary shaft of remaining guide wheel (10) and corresponding substrate (13) left half or
Right half connects.
6. steel wire rope according to claim 1 balances device for climbing rope entirely, it is characterised in that is provided with the guide wheel (10)
For being caught in the grooving of steel wire rope (11).
7. steel wire rope according to claim 1 balances device for climbing rope entirely, it is characterised in that the guide wheel (10) is using elasticity
Nylon material.
8. steel wire rope according to claim 1 balances device for climbing rope entirely, it is characterised in that substrate (13) the back arrangement
There are reserved instrument position and counterweight position (17).
9. steel wire rope according to claim 1 balances device for climbing rope entirely, it is characterised in that the power set (2) include electricity
Machine, speed changer and controller, the output shaft of the motor are connected with the speed changer, the output shaft of the speed changer with it is described defeated
Go out gear (5) connection, the controller electrically connects with the motor.
10. steel wire rope according to claim 1 balances device for climbing rope entirely, it is characterised in that two scroll bars (8) are with institute
Output gear (5) central axis is stated to be symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213514.4A CN105714751B (en) | 2016-04-07 | 2016-04-07 | Steel wire rope balances device for climbing rope entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213514.4A CN105714751B (en) | 2016-04-07 | 2016-04-07 | Steel wire rope balances device for climbing rope entirely |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105714751A CN105714751A (en) | 2016-06-29 |
| CN105714751B true CN105714751B (en) | 2017-12-29 |
Family
ID=56159662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610213514.4A Active CN105714751B (en) | 2016-04-07 | 2016-04-07 | Steel wire rope balances device for climbing rope entirely |
Country Status (1)
| Country | Link |
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| CN (1) | CN105714751B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332989B (en) * | 2018-12-19 | 2021-09-28 | 中国石油天然气股份有限公司 | Climbing aid |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2760337Y (en) * | 2005-01-12 | 2006-02-22 | 宝山钢铁股份有限公司 | Device for preventing groove skipping of steel rope while hoisting movable pulley |
| KR101004402B1 (en) * | 2008-05-09 | 2010-12-28 | 주식회사 아앤시티 | An apparatus for ship lift using variable counter-weight |
| KR101345817B1 (en) * | 2012-12-28 | 2014-01-03 | 권동현 | Apparatus for inducing wire |
| CN104452723A (en) * | 2014-12-10 | 2015-03-25 | 天津大学前沿技术研究院有限公司 | Self-balancing type bi-directional ship elevator |
| CN204418148U (en) * | 2015-01-19 | 2015-06-24 | 中国葛洲坝集团股份有限公司 | Ship elevator balancing heavy wire rope double hydraulic cylinder tensioning equipment |
| CN205712047U (en) * | 2016-04-07 | 2016-11-23 | 中国长江三峡集团公司 | Steel wire rope balances device for climbing rope entirely |
-
2016
- 2016-04-07 CN CN201610213514.4A patent/CN105714751B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2760337Y (en) * | 2005-01-12 | 2006-02-22 | 宝山钢铁股份有限公司 | Device for preventing groove skipping of steel rope while hoisting movable pulley |
| KR101004402B1 (en) * | 2008-05-09 | 2010-12-28 | 주식회사 아앤시티 | An apparatus for ship lift using variable counter-weight |
| KR101345817B1 (en) * | 2012-12-28 | 2014-01-03 | 권동현 | Apparatus for inducing wire |
| CN104452723A (en) * | 2014-12-10 | 2015-03-25 | 天津大学前沿技术研究院有限公司 | Self-balancing type bi-directional ship elevator |
| CN204418148U (en) * | 2015-01-19 | 2015-06-24 | 中国葛洲坝集团股份有限公司 | Ship elevator balancing heavy wire rope double hydraulic cylinder tensioning equipment |
| CN205712047U (en) * | 2016-04-07 | 2016-11-23 | 中国长江三峡集团公司 | Steel wire rope balances device for climbing rope entirely |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105714751A (en) | 2016-06-29 |
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Address after: 100036 No.1 Yuyuantan South Road, Haidian District, Beijing Patentee after: CHINA THREE GORGES Corp. Address before: 100000 No. 1, Yuyuantan South Road, Haidian District, Beijing Patentee before: CHINA THREE GORGES Corp. |
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Effective date of registration: 20211215 Address after: 100036 No.1 Yuyuantan South Road, Haidian District, Beijing Patentee after: CHINA THREE GORGES Corp. Patentee after: Three Gorges Technology Co.,Ltd. Address before: 100036 No.1 Yuyuantan South Road, Haidian District, Beijing Patentee before: CHINA THREE GORGES Corp. |
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