CN110144819A - A kind of safe running gear and application method for truss-type bridges manual inspection - Google Patents
A kind of safe running gear and application method for truss-type bridges manual inspection Download PDFInfo
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- CN110144819A CN110144819A CN201910491194.2A CN201910491194A CN110144819A CN 110144819 A CN110144819 A CN 110144819A CN 201910491194 A CN201910491194 A CN 201910491194A CN 110144819 A CN110144819 A CN 110144819A
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- wire rope
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- 238000007689 inspection Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000003466 welding Methods 0.000 claims description 8
- 210000005069 ears Anatomy 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009977 dual effect Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 238000011179 visual inspection Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of safe running gears and application method for truss-type bridges manual inspection.The safe running gear includes two rectangle anchor ear devices, connects the two rectangle anchor ear devices high strength wire rope, movable safety sleeve, box-shaped anchor ear device and the high-intensitive splicing panel assembly being connect with box-shaped anchor ear device being applied on high strength wire rope.High strength wire rope with movable safety sleeve is fixed on vertical bar of truss or diagonal web member by this safe running gear by rectangle anchor ear device, it is ensured that patrol officer has sufficient activity space under safety guarantee；Simultaneously, loins safety rope hanging can be hooked on the perforation otic placode of box-shaped anchor ear device by patrol officer at any time during traveling, added dual fail-safe to inspection process safety, thus solve due to truss bridge girder inner distance maintaining roadway position farther out caused by the insufficient problem of partial component inspection quality.
Description
Technical field
The present invention relates to Large Span Bridges operation stages to detect maintenance area, and in particular to artificial for truss-type bridges to one kind
The safe running gear and application method of inspection.
Background technique
China builds Large Span Bridges on a large scale now, and this kind of bridge structure form is with suspension bridge, cable-stayed bridge configuration
Based on, generally have the characteristics that flexibility is big, unfavorable vibration occurs vulnerable to natural effect, meanwhile, these Longspan Bridges
It is often built in the extreme terrains geomorphic province such as mountain area, girder form mostly uses Steel Truss Stiffening Girder form.This kind of truss-type bridges
Vulnerable to the influence of Complex Natural Environment, occur the diseases such as peeling paint, component corrosion, bolt torsional deformation during operation
Phenomena such as evil, while there is also fatigue damage crackle, and high-strength bolt loosens, can if these diseases cannot prevent and treat in time
Serious influence is caused on the intensity of bridge itself, service life, therefore health monitoring and inspection maintenance are carried out to truss-type bridges
It is necessary, is of great significance to guarantee traffic normal operation and people's lives and properties.
Existing large bridge inspection by detection go deep into degree be divided into 5 grades: 1 grades refer at a distance visually inspect or using hope
The visual inspection of remote mirror；2 grades of visual inspections referred to substantially close to check point allow eyes to check point distance in 50cm
More than；3 grades refer to the visual inspection substantially close to check point require glasses to check apart from position within 50cm；4 grades are
Refer to very close check point, also can be used other than visually touch, tap, pull, the modes such as optical amplifier are checked；
5 grades refer to being checked or measured by special instrument, such as health monitoring systems real-time monitoring or loading test etc..
Since health monitoring systems only lay sensor on some key positions and key point, steel truss not can guarantee
Structure integrally is all covered by sensor network, sensor not covered partial component be often the blind of bridge security inspection
Corrosion and bolt looseness where point, such as on steel truss etc., all need to be constantly or periodically right by necessary manual inspection
These positions carry out inspection, and it is complementary can to detect progress superiority and inferiority with the general safety of health monitoring systems.
The existing manual inspection for truss-type bridges is usually that patrol officer station carries out mesh on the maintaining roadway on girder both sides
Observation is surveyed, is limited by visual range, the current this method for inspecting for truss bridge girder only reaches 1 grade or 2 grades, safety
Checking on effect is clearly inadequate.Once fatigue cracking or bolt looseness occur for these partial components, if failing to check in time
And punished, bridge capacity and durability decline certainly will be will cause, or even cause safety accident.It is therefore desirable to closely
Manual inspection is carried out to steel truss frame member.
Summary of the invention
In order to solve due to truss bridge girder inner distance maintaining roadway position farther out caused by partial component inspection quality
Insufficient problem, the present invention provides a kind of safe running gears for truss-type bridges manual inspection, including two rectangle anchor ears
Device, the high strength wire rope for connecting the two rectangle anchor ear devices, the movable safety set being applied on high strength wire rope
Cylinder, box-shaped anchor ear device and the high-intensitive splicing panel assembly being connect with box-shaped anchor ear device.
Further, the channel steel bolt that rectangle anchor ear device is equipped with flange plate and prepared screw-bolt hole by two panels end it is assembled and
At.Specifically, wherein also welding has perforation otic placode at the web of a piece of channel steel, for fixing high strength wire rope.
Further, the middle section of movable safety sleeve, which is recessed, ties up slot；Movable safety sleeve can be in high intensity
It slides on wirerope, can also be rotated around high strength wire rope.
Further, box-shaped anchor ear device includes the channel steel bolt assembly that two panels end is equipped with flange plate and prepared screw-bolt hole
Made of anchor ear hollow cylinder and the chamber top plate at the top of anchor ear hollow cylinder；Wherein also welding is worn at the web of a piece of channel steel
Hole otic placode；It is provided with bolt hole on chamber top plate, to bolt with high intensity splicing panel assembly.
Further, high-intensitive splicing panel assembly includes splice plate, connecting plate and shaft；The quantity of splice plate is 2N piece, N
≥2；Splice plate tiling is arranged in two row N column, and the splice plate on every row is connected by connecting plate, and the splice plate in each column is by turning
Axis connection.
Further, chamber top plate is connect by bolt with the two panels splice plate being located in same row；Box-shaped anchor ear device
Quantity be M, 1≤M≤N.
Further, the size of rectangle anchor ear device is according to inspection requirements of one's work and by the inspection oblique abdomen of truss bridge girder
Bar, vertical bar size and customize in advance.
On the other hand, the invention further relates to the uses of the safe running gear as described above for truss-type bridges manual inspection
Method, comprising the following steps:
Step 1: by two rectangle anchor ear devices, anchor ear bolt is fixed on two in the same cross section of truss-type bridges respectively
On the different diagonal web members or vertical bar of (i.e. direction across bridge)；
Step 2: high strength wire rope is run through movable safety sleeve, then tensioning high strength wire rope, and will be high-intensitive
The both ends of wirerope are separately fixed on the two rectangle anchor ear devices fixed in step 1；
Step 3: M box-shaped anchor ear device anchor ear bolt is fixed on by the bottom lateral bracing near inspection component, M >=1；
Step 4: being in first N pairs by shaft connection by 2N piece splice plate, then bolted by connecting plate, so that 2N piece
Splice plate arranges tiling arrangement at two row N, then the two panels splice plate being located in same row is bolted to the case of box-shaped anchor ear device
On ceiling plate, M≤N；
Step 5: the safety rope end for lying in patrol officer's both shoulders hook is fastened around removable after completing step 4
Dynamic safety sleeve is tied up on slot；
Step 6: patrol officer is according to need of work, as soon as position inspection at often going to, will lie in the safe rope end of loins
Head hook is fixed on the perforation otic placode apart from nearest box-shaped anchor ear device.
The safety rope end for lying in both shoulders can be linked up with and be fastened around the tying up on slot of movable safety sleeve by patrol officer,
Movable safety sleeve can be moved along high strength wire rope direction, then can help patrol officer's safety moving on direction across bridge；
In addition, patrol officer can be made to move safely upwards along bridge around high strength wire rope rotation equipped with the movable safety sleeve for tying up slot
It is dynamic.Therefore, this system had not only ensured patrol officer's safety, but also sufficient operating space can be provided for manual inspection.
Further, two rectangle anchor ear devices are horizontally disposed in step 1, and its horizontal position height and patrol officer
Shoulder height is concordant.
Further, the both ends of high strength wire rope are separately fixed to two fixed in step 1 in step 2
On the perforation otic placode of rectangle anchor ear device.
The present invention thoroughly solves under the premise of guaranteeing inspection safety due to truss bridge girder inner distance maintaining roadway position
Set farther out caused by the insufficient problem of partial component inspection quality.Specifically, the system of the invention uses high strength steel
It is made, anchor ear device and splice plate etc. all pass through lathe in machining, are not only easy to carry, while being convenient on maintaining roadway
It is assembled on the spot.In addition, this safe running gear passes through high-strength bolt completely carries out bolt assembly for each component, steel is not being destroyed
The convenience of manual inspection is increased under the premise of truss itself mechanical characteristic and structure durability.This safe running gear is logical
Rectangle anchor ear device is crossed, the high strength wire rope with movable safety sleeve is fixed on vertical bar of truss or diagonal web member, it can
Guarantee that patrol officer has sufficient activity space under safety guarantee, convenient for patrol officer to the component of steel truss various pieces
Adequately check in detail.Meanwhile welding has perforation ear on the box-shaped anchor ear device below high-intensitive splicing panel assembly
Loins safety rope hanging can be continuously hooked on perforation otic placode by plate, patrol officer during traveling, give inspection process
Safety added dual fail-safe.Splice plate passes through shaft foldable, sprawls to be convenient for carrying bridge, and splicing installation is simple and convenient, can
Operability is stronger.
Compared with existing manual inspection system, the beneficial effects of the present invention are:
High-strength steel cord and high-strength splice plate are fixed on the finger of truss-type bridges using the anchor ear device of customization by the present invention respectively
On fixed pole part, by the way that perforation otic placode is arranged on box-shaped anchor ear device, movable safety sleeve is arranged in high-strength steel cord, both
It has ensured patrol officer's safety, and sufficient operating space can be provided for manual inspection.
Rectangle anchor ear device, box-shaped anchor ear device and high-intensitive splicing panel assembly are all made of Q235 steel and are made, square
Shape anchor ear device, box-shaped anchor ear device splicing board size are little, and are according to inspection needs and truss bridge girder rod size
It customizes in advance, it ensure that the safe running gear that this set is used for truss-type bridges manual inspection can be assembled on the spot on maintaining roadway,
Each component is easy to carry, easy to assembly, and meets practical inspection needs after assembling.In addition, high-intensitive splicing panel assembly passes through number
Its surface has the lines of certain depth after control lathe process, should clean to node plate surface before use, guarantee its tool
There is sufficient frictional force, the safety of inspection work can be improved, be conducive to site safety operation.
In conclusion the present invention is easy to carry about with one, is easy for installation, safe and reliable work can be provided for truss-type bridges patrol officer
Industry platform has saved cost in the design for constructing itself, has improved convenience.The invention avoids perforation, welding etc. to destroy
The unfavorable behavior of truss-type bridges main structure mechanical characteristic；Meanwhile the present invention not only substantially increase patrol officer in truss-type bridges master
Working range and operating space in beam have also ensured the safety of inspection work, this is because this system can make patrol officer's shoulder
Portion safety rope end hook is fixed on movable safety sleeve, waist safety rope end hook is fixed on box-shaped anchor ear device
It perforates on otic placode, underfooting steps down on the textured anti-skidding high-strength splice plate of tool.For being equipped with the truss-type bridges of health monitoring systems,
The present invention additionally aids system debug and maintenance personnel enters the sensor of the inspection of girder deeper inside, replacement failure.With
The existing method for inspecting visually observed on maintaining roadway of standing is compared, and present invention is particularly suitable for the mountain areas of environmental condition complexity
The inspection of bridge works, and ensure that patrol officer freely stablizes the part of bridge member in truss bridge girder, pacifies
Entirely, it critically detects.
Below with reference to attached drawing, the invention will be further described, with absolutely prove the purpose of the present invention, technical characteristic and
Technical effect.
Detailed description of the invention
Fig. 1 is a specific embodiment of the safe running gear according to the present invention for truss-type bridges manual inspection
Structural schematic diagram.
Fig. 2-5 is right view, main view, perspective view and the vertical view of rectangle anchor ear device in a specific embodiment respectively
Figure.
Fig. 6-9 is the left view that high intensity splices panel assembly in a specific embodiment, main view, perspective view respectively and bows
View.
Figure 10-13 is left view, main view, perspective view and the vertical view of box-shaped anchor ear device in a specific embodiment respectively
Figure.
Figure 14-17 left view of movable safety sleeve, main view, perspective view and is bowed in a specific embodiment respectively
View.
Specific embodiment
Technical solution of the present invention is further described below by way of specific embodiment.Embodiment below is pair
Further explanation of the invention, is not intended to limit the scope of the invention.
Fig. 1 shows a specific embodiment of the invention, in this embodiment, the safety for truss-type bridges manual inspection
Running gear includes two rectangle anchor ear devices 1, the high strength wire rope 12 for connecting the two rectangle anchor ear devices 1, is applied in
Movable safety sleeve 10, box-shaped anchor ear device on high strength wire rope 12 and what is connect with box-shaped anchor ear device high-intensitive spell
Plate receiving device 4.
Rectangle anchor ear device 1 (as shown in Figure 2-5) is bolted by the channel steel that two panels end is equipped with flange plate 2 and prepared screw-bolt hole
It is assembled, wherein also welding has perforation otic placode 3 at the web of a piece of channel steel, for fixing high strength wire rope 12.Rectangle is embraced
The size for binding round device 1 is determined in advance according to inspection requirements of one's work and by the size for examining truss bridge girder diagonal web member, vertical bar
System.
The middle section of movable safety sleeve 10 (as shown in figures 14-17), which is recessed, ties up slot 11, and movable safety sleeve
10 can slide on high strength wire rope 12, can also rotate around high strength wire rope 12.
Box-shaped anchor ear device (as shown in figures 10-13) includes the channel steel that two panels end is equipped with flange plate 21 and prepared screw-bolt hole
Bolt assembled anchor ear hollow cylinder and the chamber top plate 9 at the top of anchor ear hollow cylinder；Wherein at the web of a piece of channel steel
Also welding has perforation otic placode 31；It is provided with bolt hole on chamber top plate 9, to bolt with high intensity splicing panel assembly 4.
High intensity splicing panel assembly 4 (as Figure 6-9) includes splice plate 7, connecting plate 8 and shaft 6；The number of splice plate 7
Amount is 2N piece, N >=2.The tiling of splice plate 7 is arranged in two row N column, and the splice plate 7 on every row is connected by connecting plate 8, in each column
Splice plate 7 connected by shaft 6.Chamber top plate 9 is connect by bolt with the two panels splice plate 7 being located in same row.Box-shaped
The quantity of anchor ear device is M, 1≤M≤N.
This is used for the application method of the safe running gear of truss-type bridges manual inspection, comprising the following steps:
Step 1: by two rectangle anchor ear devices, anchor ear bolt is fixed on two in the same cross section of truss-type bridges respectively
On the different diagonal web members or vertical bar of (i.e. direction across bridge)；Two rectangle anchor ear devices are horizontally disposed, and its horizontal position height with patrol
Inspection personnel's shoulder height is concordant.
Step 2: high strength wire rope is run through movable safety sleeve, then tensioning high strength wire rope, and will be high-intensitive
The both ends of wirerope are separately fixed on the perforation otic placode of the two rectangle anchor ear devices fixed in step 1.
Step 3: M box-shaped anchor ear device anchor ear bolt is fixed on by the bottom lateral bracing near inspection component, M >=1.
Step 4: being in first N pairs by shaft connection by 2N piece splice plate, then bolted by connecting plate, so that 2N piece
Splice plate arranges tiling arrangement at two row N, then the two panels splice plate being located in same row is bolted to the case of box-shaped anchor ear device
On ceiling plate, M≤N.
Step 5: the safety rope end for lying in patrol officer's both shoulders hook is fastened around removable after completing step 4
Dynamic safety sleeve is tied up on slot.
Step 6: patrol officer is according to need of work, as soon as position inspection at often going to, will lie in the safe rope end of loins
Head hook is fixed on the perforation otic placode apart from nearest box-shaped anchor ear device.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of safe running gear for truss-type bridges manual inspection, which is characterized in that including two rectangle anchor ear devices, even
The high strength wire rope for connecing the two rectangle anchor ear devices, the movable safety set being applied on the high strength wire rope
Cylinder, box-shaped anchor ear device and the high-intensitive splicing panel assembly being connect with the box-shaped anchor ear device.
2. being used for the safe running gear of truss-type bridges manual inspection as described in claim 1, which is characterized in that the rectangle is embraced
It is assembled to bind round the channel steel bolt that device is equipped with flange plate and prepared screw-bolt hole by two panels end.
3. being used for the safe running gear of truss-type bridges manual inspection as claimed in claim 2, which is characterized in that wherein a piece of institute
State at the web of channel steel that also welding has perforation otic placode, for fixing the high strength wire rope.
4. being used for the safe running gear of truss-type bridges manual inspection as claimed in claim 3, which is characterized in that described removable
The middle section of safety sleeve, which is recessed, ties up slot；The movable safety sleeve can slide on the high strength wire rope,
It can be rotated around the high strength wire rope.
5. being used for the safe running gear of truss-type bridges manual inspection as claimed in claim 4, which is characterized in that the box-shaped is embraced
Hoop device includes that two panels end bolts assembled anchor ear hollow cylinder and be located at equipped with the channel steel of flange plate and prepared screw-bolt hole
Chamber top plate at the top of the anchor ear hollow cylinder；Wherein also welding has perforation otic placode at the web of a piece of channel steel；The case
It is provided with bolt hole on ceiling plate, to bolt with high intensity splicing panel assembly.
6. being used for the safe running gear of truss-type bridges manual inspection as claimed in claim 5, which is characterized in that the high intensity
Splicing panel assembly includes splice plate, connecting plate and shaft；The quantity of the splice plate is 2N piece, N >=2；The splice plate tiling
Two row N column are arranged in, the splice plate on every row is connected by the connecting plate, and the splice plate in each column passes through described
Shaft connection.
7. being used for the safe running gear of truss-type bridges manual inspection as claimed in claim 6, which is characterized in that the chamber top
Plate is connect by bolt with splice plate described in the two panels being located in same row；The quantity of the box-shaped anchor ear device is M, 1≤M
≤N。
8. the application method for the safe running gear of truss-type bridges manual inspection as described in claim 1, which is characterized in that
The following steps are included:
Step 1: by two rectangle anchor ear devices, anchor ear bolt is fixed on two in the same cross section of truss-type bridges respectively
Different diagonal web members or vertical bar on；
Step 2: the high strength wire rope is run through into the movable safety sleeve, then high strength wire rope described in tensioning, and
The both ends of the high strength wire rope are separately fixed on the two rectangle anchor ear devices fixed in the step 1；
Step 3: the described box-shaped anchor ear device anchor ears bolt of M is fixed on by the bottom lateral bracing near inspection component, M >=1；
Step 4: being in first N pairs by shaft connection by 2N piece splice plate, then bolted by connecting plate, so that described in 2N piece
Splice plate arranges tiling arrangement at two row N, and splice plate described in the two panels being located in same row is then bolted to the box-shaped anchor ear
On the chamber top plate of device, M≤N；
Step 5: the safety rope end for lying in patrol officer's both shoulders hook is fastened around described after completing the step 4
Movable safety sleeve is tied up on slot；
Step 6: the patrol officer is according to need of work, as soon as position inspection at often going to, will lie in the safe rope end of loins
Head hook is fixed on the perforation otic placode of the nearest box-shaped anchor ear device of distance.
9. application method as claimed in claim 8, which is characterized in that the two rectangle anchor ear device water in the step 1
Flat setting, and its horizontal position height is concordant with patrol officer's shoulder height.
10. application method as claimed in claim 8 or 9, which is characterized in that by the high strength wire rope in the step 2
Both ends be separately fixed on the perforation otic placode of the two rectangle anchor ear devices fixed in the step 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910491194.2A CN110144819B (en) | 2019-06-06 | 2019-06-06 | Safe walking system for manual inspection of truss bridge and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910491194.2A CN110144819B (en) | 2019-06-06 | 2019-06-06 | Safe walking system for manual inspection of truss bridge and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110144819A true CN110144819A (en) | 2019-08-20 |
| CN110144819B CN110144819B (en) | 2024-04-12 |
Family
ID=67590680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910491194.2A Active CN110144819B (en) | 2019-06-06 | 2019-06-06 | Safe walking system for manual inspection of truss bridge and use method |
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| Country | Link |
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| CN (1) | CN110144819B (en) |
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