CN108103932A - It turns round closed type Flexible arch bridge with steel truss beam and checks vehicle - Google Patents
It turns round closed type Flexible arch bridge with steel truss beam and checks vehicle Download PDFInfo
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- CN108103932A CN108103932A CN201711407200.9A CN201711407200A CN108103932A CN 108103932 A CN108103932 A CN 108103932A CN 201711407200 A CN201711407200 A CN 201711407200A CN 108103932 A CN108103932 A CN 108103932A
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- vehicle frame
- steel truss
- revolution
- vehicle
- hanging basket
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Classifications
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- 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
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of revolution closed type Flexible arch bridge with steel truss beam to check vehicle, and including the symmetrically arranged two inspection vehicles side of central axis along longitudinal direction, each inspection vehicle side includes body frame structure for automotive, running mechanism, swing mechanism, hanging basket system and jacking system；Top turns round vehicle frame and is connected by top swing mechanism with the top of vertical fixed vehicle frame, and lower part turns round vehicle frame and is connected by lower part swing mechanism with the bottom of vertical fixed vehicle frame；The end of the top revolution vehicle frame of top connection lock connection both sides, the end of the lower part revolution vehicle frame of lower part connection lock connection both sides；Hanging basket system is mounted on top revolution vehicle frame；Jacking system is mounted on lower part revolution vehicle frame.The revolution closed type Flexible arch bridge with steel truss beam of the present invention checks that vehicle avoids obstacle by the rotation of swing mechanism and realizes full-bridge longitudinally elongated without hindrance movement, it will check that vehicle side connects to form the outline border of remaining silent for surrounding steel truss girder by latching, realized by hanging basket system and jacking system to the comprehensive inspection of steel truss girder.
Description
Technical field
It is flexible in particular to a kind of revolution closed type steel truss girder the present invention relates to highway and railroad bridge service technique field
Arch bridge checks vehicle.
Background technology
In order to ensure the security reliability of bridge operation, maintenance department need periodically to carry out bridge walkaround inspection,
Maintaining, bridge inspection vehicle are the job platforms provided for staff.Check that vehicle is required to vertical bridge to movement, direction across bridge
Movable passageway is provided with vertical, makes that safety of workers is reliable, is conveniently operated, rapidly and efficiently as far as possible, to bridge in all directions without dead angle
It checks.
It is soft that steel truss girder is applied to more and more with the development of bridge construction and the needs of adaptation span distribution, in engineering
Property arch bridge.Due to arch springing, sunpender, under put more energy into, obstructions, traditional steel truss beam inspection vehicle such as bridge pier can not achieve to full-bridge steel truss girder
Comprehensive inspection brings difficulty to the design for checking vehicle.The Rongjiang Flexible arch bridge with steel truss beam of tall building 2 × 220m of depth railway main span is adopted
With inspection vehicle of the top and the bottom from, horizontal vehicle frame extension type.The inspection vehicle of this form substantially meets steel truss girder flexibility
The steel truss girder inspection requirements of arch bridge, but be inconvenient to the bolt on the outside of the steel truss girder main truss checked.Further, since horizontal vehicle frame uses
Telescopic, there is also the problem of complicated, cumbersome.
The content of the invention
It is an object of the present invention to provide a kind of revolution closed type Flexible arch bridge with steel truss beam to check vehicle, it can be achieved that steel truss
Comprehensive inspection of the steel truss of beam flexible arch bridge.
To achieve the above object, the revolution closed type Flexible arch bridge with steel truss beam designed by the present invention checks that vehicle is included along longitudinal direction
The symmetrically arranged two inspection vehicles side of central axis, each inspection vehicle side include body frame structure for automotive, running mechanism, revolution
Mechanism, hanging basket system and jacking system；The body frame structure for automotive includes vertical fixed vehicle frame, top revolution vehicle frame and lower part carrousel
Frame, the vertical fixed vehicle frame are arranged on the side of the steel truss of Flexible arch bridge with steel truss beam, the top revolution vehicle frame and described
Lower part revolution vehicle frame is separately mounted to the top and bottom of the vertical fixed vehicle frame by the swing mechanism；It is described vertical solid
Determine vehicle frame by running mechanism be mounted on Flexible arch bridge with steel truss beam steel truss on and can be on steel truss along steel truss girder sliding roadway arch
The length direction walking of bridge；The swing mechanism includes top swing mechanism and lower part swing mechanism, and vehicle frame is turned round on the top
It is connected by the top swing mechanism with the top of the vertical fixed vehicle frame and can be around the perpendicular of the vertical fixed vehicle frame
Axis planar rotates, the bottom that the lower part revolution vehicle frame passes through the lower part swing mechanism and the vertical fixed vehicle frame
It is connected and can be planar rotated around the vertical axis of the vertical fixed vehicle frame；The lock includes top connection lock and lower part
Connection lock, the end of the top revolution vehicle frame of the top connection lock connection both sides, the lower part connection lock connect
Connect the end of the lower part revolution vehicle frame of both sides；The hanging basket system is mounted on top revolution vehicle frame；The jacking system
On lower part revolution vehicle frame.
Preferably, the running mechanism include top running mechanism and lower part running mechanism, top running mechanism,
Lower part running mechanism is fixed on vertical fixed vehicle frame upper and lower part；The inspection vehicle side further comprises along soft along steel truss girder
Property arch bridge length direction be mounted on steel truss on track structure, the track structure include and the top running mechanism phase
Corresponding upper track structure and with the corresponding lower tracks structure of the lower part running mechanism.
Preferably, the hanging basket system includes hanging basket platform, hoist cable hoist engine, hanging basket moving cart and hanging basket shifting
Dynamic trolley track, the length direction of the hanging basket moving cart track along top revolution vehicle frame are arranged on the top and turn round
The top of vehicle frame, the hanging basket moving cart suspend the hanging basket platform in midair by the hoist cable hoist engine.
Preferably, it is flat to include hoistable platform, lift, hoistable platform moving cart and lifting for the jacking system
Platform moving cart track, the length direction of the hoistable platform moving cart track along lower part revolution vehicle frame are arranged on described
On lower part revolution vehicle frame, the hoistable platform moving cart supports the hoistable platform by the lift.
Preferably, the inspection vehicle side further comprise the electric power system being arranged on the body frame structure for automotive and
Control system, the electric power system pass through power cord and the running mechanism, the swing mechanism, the hanging basket system and described
Jacking system connects, and the control system is connected to the running mechanism, the swing mechanism, the hanging basket system by signal wire
System and the jacking system.
Preferably, the upper track structure is connected by bracket with the top boom of steel truss girder, the lower rail
Road structure is connected by bracket with the lower boom of steel truss girder.
The beneficial effects of the invention are as follows：The revolution closed type Flexible arch bridge with steel truss beam of the present invention checks that vehicle passes through swing mechanism
Rotation avoid bridge pier, under put more energy into, arch springing, sunpender, so as to fulfill full-bridge longitudinally elongated without hindrance movement, an inspection vehicle
To the elongated continuity check of full-bridge, compared with traditional inspection vehicle, reduce and check vehicle quantity, save engineering cost；Pass through lock
It will check that vehicle side connects to form the outline border of remaining silent for surrounding steel truss girder, will check that the connection of vehicle side is integral, with outline border of remaining silent
Form is enclosed in the periphery of steel truss girder, adds stability, the security of structure during overhauling；It is realized by hanging basket system flat
The inspection of bridge deck longeron, crossbeam, bottom lateral bracing, an inspection vehicle realization pair are realized in the inspection of connection and horizontal-associate by jacking system
The comprehensive inspection such as main truss, lateral, horizontal-associate, the bridge deck of steel truss girder expands examination scope, reduces the cost of maintenance maintenance.
Description of the drawings
Fig. 1 is that the revolution closed type Flexible arch bridge with steel truss beam of the preferred embodiment of the present invention checks the master of vehicle in closed state
Depending on structure diagram.
Fig. 2 is that the revolution closed type Flexible arch bridge with steel truss beam in Fig. 1 checks front view structure of the vehicle in the case where opening turn state
Schematic diagram.
Fig. 3 is the side structure schematic view of the revolution closed type Flexible arch bridge with steel truss beam inspection vehicle in Fig. 2.
Each part numbers are as follows in figure：(wherein, vertically vehicle frame 12, lower part are turned round in fixed vehicle frame 11, top to body frame structure for automotive 10
Turn round vehicle frame 13)；Running mechanism 20 (wherein, top running mechanism 21, lower part running mechanism 22)；Swing mechanism 30 is (on wherein,
Portion's swing mechanism 31, lower part swing mechanism 32)；(wherein, 42) top connection lock 41, lower part connection latch lock 40；Hanging basket
System 50 (wherein, hanging basket platform 51, hoist cable hoist engine 52, hanging basket moving cart 53, hanging basket moving cart track 54)；Lifting system
60 (wherein, hoistable platform 61, lift 62, hoistable platform moving cart 63, hoistable platform moving cart tracks 64) of system；Power supply
System 70；Control system 80；Track structure 90 (wherein, upper track structure 91, lower tracks structure 92)；Bracket 100.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
For overcome the deficiencies in the prior art, for existing Flexible arch bridge with steel truss beam check the separation of vehicle upper and lower part,
The problems such as poor, the horizontal vehicle frame telescopic construction of stability is complicated, cumbersome is summarizing current Flexible arch bridge with steel truss beam Examined effect
On the basis of, the present invention provides a kind of rotatable, closed type Flexible arch bridge with steel truss beam and checks vehicle, and upper and lower part vehicle frame can return
Turn over arch rib, sunpender, under put more energy into, bridge pier, the outer frame of remaining silent checks vehicle, can meet the comprehensive inspection of Flexible arch bridge with steel truss beam trusses
The needs looked into, but can effectively solve the problems, such as to check vehicle indulge bridge to be moved through arch springing, sunpender, under put more energy into, bridge pier, it is effective to improve
Check vehicle utilization ratio, have it is simple in structure, flexible performance is strong, easy to operate, safe and reliable, technologically advanced, economical and social
The characteristics of remarkable benefit.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the revolution closed type Flexible arch bridge with steel truss beam inspection of the preferred embodiment of the present invention
Vehicle is looked into, is made of the symmetrically arranged two inspection vehicles side of central axis along longitudinal direction, each inspection vehicle side includes body frame structure for automotive
10th, running mechanism 20, swing mechanism 30, hanging basket system 50, jacking system 60, electric power system 70, control system 80 and track knot
Structure 90, the inspection vehicle side of longitudinal center axis both sides are integral by 40 fastening of lock.
Body frame structure for automotive 10 forms the frame for checking vehicle to check the agent structure of vehicle.Body frame structure for automotive 10 includes vertical solid
Determine vehicle frame 11, top revolution vehicle frame 12 and lower part revolution vehicle frame 13, vertical fixed vehicle frame 11 is arranged on Flexible arch bridge with steel truss beam
The side of steel truss, top revolution vehicle frame 12 and lower part revolution vehicle frame 13 are mounted on vertical fixed vehicle by swing mechanism 30 respectively
The top and bottom of frame 11.
Connection and running gear of the running mechanism 20 for body frame structure for automotive 10 and the steel truss of Flexible arch bridge with steel truss beam, vehicle frame knot
Structure 10 by running mechanism 20 be mounted on Flexible arch bridge with steel truss beam steel truss on, and pass through running mechanism 20 can be on steel truss
It walks along the length direction of Flexible arch bridge with steel truss beam.Running mechanism 20 includes top running mechanism 21 and lower part running mechanism 22,
Top running mechanism 21, lower part running mechanism 22 are fixed on vertical fixed vehicle frame 11, and running mechanism 21 traveling in top is on top
On track structure 91, running mechanism 22 traveling in lower part is in lower tracks structure 92.
Swing mechanism 30 is arranged on body frame structure for automotive 10, makes body frame structure for automotive 10 that can relatively rotate, so as to fulfill body frame structure for automotive
10 local revolutions.Swing mechanism 30 includes top swing mechanism 31 and lower part swing mechanism 32, and vehicle frame 12 is turned round by upper in top
Portion's swing mechanism 31 is connected with the top of vertical fixation vehicle frame 11, and can put down around the vertical axis of vertical fixed vehicle frame 11
Rotation in surface；Lower part turns round vehicle frame 13 and is connected by lower part swing mechanism 32 with the bottom of vertical fixation vehicle frame 11, and can be with
Vertical axis around vertical fixed vehicle frame 11 planar rotates.
Lock 40 fastens the body frame structure for automotive 10 of the steel truss of Flexible arch bridge with steel truss beam, and steel truss girder flexibility is surrounded so as to be buckled into
The frame shape of the steel truss of arch bridge is whole.Lock 40 includes top connection lock 41 and lower part connection lock 42.Top connection lock
41 connect the end of the top revolution vehicle frame 12 of both sides, and the end of vehicle frame 13 is turned round in the lower part of both sides by lower part connection lock 42
Connection forms the outline border of remaining silent for surrounding steel truss girder.
Hanging basket system 50 is mounted on the upper end of body frame structure for automotive 10, and can transverse shifting and hanging along longitudinal direction, realize to bridge
The maintenance on top.Hanging basket system 50 includes hanging basket platform 51, hoist cable hoist engine 52, hanging basket moving cart 53 and hanging basket moving cart
Track 54.Hanging basket moving cart track 54 is arranged on the top of top revolution vehicle frame 12, and hanging basket moving cart 53 is rolled up by hoist cable
It raises machine 52 and suspends hanging basket platform 51 in midair, such hanging basket platform 51 can realize direction across bridge and vertical movement.
Jacking system 60 is mounted on the lower end of body frame structure for automotive 10, and transverse shifting and can along longitudinal direction lift, and realizes to bridge
The maintenance of lower part.Jacking system 60 includes hoistable platform 61, lift 62, hoistable platform moving cart 63 and hoistable platform movement
Trolley track 64.Hoistable platform moving cart track 64, hoistable platform moving cart 63 are set in the lower part of lower part revolution vehicle frame 13
Hoistable platform 61 is supported by lift 62, such hoistable platform 61 can realize direction across bridge and vertical movement.
Electric power system 70 is arranged on body frame structure for automotive 10, is running mechanism 20, swing mechanism 30, hanging basket system 50 and lifting
System 60 is powered, and provides power.
Control system 80 is connected to running mechanism 20, swing mechanism 30, hanging basket system 50 and jacking system 60 simultaneously, realizes
Cooperate with centralized Control.
Track structure 90 is mounted on steel truss, and the path walked along bridge length direction is provided for running mechanism 20.Rail
Road structure 90 is made of upper track structure 91 and lower tracks structure 92.Upper track structure 91 is by bracket 100 with winding up
Bar is connected, and lower tracks structure 92 is connected by bracket 100 with lower boom.
Referring to Fig. 1, it checks vehicle in closure state (normal walking state) for revolution closed type Flexible arch bridge with steel truss beam
Under structure diagram.During work, locking revolution closed type Flexible arch bridge with steel truss beam checks the lock 40 of vehicle, top connection lock
41 connect the end of the top revolution vehicle frame 12 of both sides, and the end of vehicle frame 13 is turned round in the lower part of both sides by lower part connection lock 42
Connection forms shape outline border of remaining silent in steel truss girder cross section.Staff checks winding up for steel truss girder by vertically fixing vehicle frame 11
Bar, lower boom and web member；Top bracing and horizontal-associate are checked by hanging basket system 50 (staff is on hanging basket platform 51)；Pass through liter
Drop system 60 (on staff hoistable platform 61) checks the beam in length and breadth of bridge deck.
Referring to Fig. 2, it checks that vehicle (is crossed arch springing, hung in opening turn state for revolution closed type Flexible arch bridge with steel truss beam
Bar, under put more energy into, bridge pier state) under structure diagram.Check that vehicle is crossed arch springing, hung in revolution closed type Flexible arch bridge with steel truss beam
Bar, under put more energy into or during bridge pier, unlock top lock 41, by top swing mechanism 31 turn round top turn round vehicle frame 12 to parallel to
Upper cord member；Lower part connection lock 42 is unlocked, lower part is turned round by lower part swing mechanism 32 and turns round vehicle frame 13 to parallel to lower edge
Rod piece；Start the inspection vehicle side of traveling driving motor driving both sides of running mechanism 20 to precalculated position, then turn round in recovery
Portion turns round vehicle frame 12 and vehicle frame 13 is turned round in lower part, and it is integral that locking top connection lock 41 connects 42 fastening of lock with lower part.
Be clearly understood that by above-mentioned record, revolution closed type Flexible arch bridge with steel truss beam of the invention check vehicle the advantages of
It is mainly reflected in the following aspects：
When by the rotation of swing mechanism avoid bridge pier, under put more energy into, arch springing, sunpender, it is longitudinally elongated so as to fulfill full-bridge
Without hindrance movement, an inspection vehicle compared with traditional inspection vehicle, can be reduced to the elongated continuity check of full-bridge and check vehicle number
Amount saves engineering cost.
Second is that will check that vehicle side connects to form the outline border of remaining silent for surrounding steel truss girder by latching, it will check that vehicle side connects
Entirety is connected into, the periphery of steel truss girder is enclosed in the form of outline border of remaining silent, adds stability, the safety of structure during overhauling
Property.
Third, realizing the inspection of top bracing and horizontal-associate by hanging basket system, bridge deck longeron, horizontal stroke are realized by jacking system
The inspection of beam, bottom lateral bracing, an inspection vehicle is realized to the comprehensive inspection such as the main truss of steel truss girder, lateral, horizontal-associate, bridge deck, is expanded
Big examination scope reduces the cost of maintenance maintenance.
Fourth, every side checks that vehicle passes through two sets of upper and lower part wheel track drive system (running mechanism and track structure)
It is connected with main truss, wheel rail drive system is additionally provided with horizontal wheel track /V, enhances structure and indulge bridge in addition to setting vertical wheel track connection
To the stationarity and security reliability of driving driving.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of revolution closed type Flexible arch bridge with steel truss beam checks vehicle, it is characterised in that：The revolution closed type steel truss girder is flexible
Arch bridge checks that vehicle includes the symmetrically arranged two inspection vehicles side of central axis along longitudinal direction, and each inspection vehicle side includes vehicle
Frame structure (10), running mechanism (20), swing mechanism (30), hanging basket system (50) and jacking system (60)；The body frame structure for automotive
(10) vertical fixed vehicle frame (11), top revolution vehicle frame (12) and lower part revolution vehicle frame (13), the vertical fixed vehicle frame are included
(11) side of the steel truss of Flexible arch bridge with steel truss beam, the top revolution vehicle frame (12) and lower part revolution vehicle frame are arranged on
(13) top and bottom of the vertical fixed vehicle frame (11) are separately mounted to by the swing mechanism (30)；It is described vertical solid
Determine vehicle frame (11) by running mechanism (20) be mounted on Flexible arch bridge with steel truss beam steel truss on and can be on steel truss along steel truss
The length direction walking of beam flexible arch bridge；The swing mechanism (30) includes top swing mechanism (31) and lower part swing mechanism
(32), the top that the top revolution vehicle frame (12) passes through the top swing mechanism (31) and the vertical fixed vehicle frame (11)
It is connected and can be planar rotated around the vertical axis of the vertical fixed vehicle frame (11), the lower part revolution vehicle frame (13) passes through
The lower part swing mechanism (32) is connected with the bottom of the vertical fixed vehicle frame (11) and can be around the vertical fixed vehicle frame
(11) vertical axis planar rotates；The lock (40) includes top connection lock (41) and lower part connection lock (42),
The end of the top revolution vehicle frame (12) of top connection lock (41) the connection both sides, the lower part connection lock (42)
Connect the end of the lower part revolution vehicle frame (13) of both sides；The hanging basket system (50) is mounted on top revolution vehicle frame (12)
On；The jacking system is mounted on lower part revolution vehicle frame (13).
2. revolution closed type Flexible arch bridge with steel truss beam according to claim 1 checks vehicle, it is characterised in that：The traveling machine
Structure (20) includes top running mechanism (21) and lower part running mechanism (22), top running mechanism (21), lower part running mechanism
(22) it is fixed on vertical fixed vehicle frame (11) upper and lower part；The inspection vehicle side further comprises edge along steel truss girder sliding roadway arch
The length direction of bridge is mounted on the track structure (90) on steel truss, and the track structure (90) includes and the top traveling machine
The corresponding upper track structure (91) of structure (21) and with the corresponding lower tracks structure of lower part running mechanism (22)
(92)。
3. revolution closed type Flexible arch bridge with steel truss beam according to claim 1 or 2 checks vehicle, it is characterised in that：It is described to hang
Basket system (50) includes hanging basket platform (51), hoist cable hoist engine (52), hanging basket moving cart (53) and hanging basket moving cart track
(54), the length direction of the hanging basket moving cart track (54) along top revolution vehicle frame (12) is arranged on the top and returns
It changes trains or buses the top of frame (12), the hanging basket moving cart (53) passes through the hoist cable hoist engine (52) and suspends the hanging basket platform in midair
(51)。
4. revolution closed type Flexible arch bridge with steel truss beam according to claim 3 checks vehicle, it is characterised in that：The lifting system
System (60) includes hoistable platform (61), lift (62), hoistable platform moving cart (63) and hoistable platform moving cart track
(64), the hoistable platform moving cart track (64) along the lower part revolution vehicle frame (13) length direction be arranged on it is described under
On portion's revolution vehicle frame (13), the hoistable platform moving cart (63) supports the hoistable platform by the lift (62)
(61)。
5. revolution closed type Flexible arch bridge with steel truss beam according to claim 4 checks vehicle, it is characterised in that：The inspection vehicle
Side further comprises the electric power system (70) and control system (80) being arranged on the body frame structure for automotive (10), the power supply system
System (70) passes through power cord and the running mechanism (20), the swing mechanism (30), the hanging basket system (50) and the liter
Drop system (60) connects, and the control system (80) is connected to the running mechanism (20), the swing mechanism by signal wire
(30), the hanging basket system (50) and the jacking system (60).
6. revolution closed type Flexible arch bridge with steel truss beam according to claim 4 checks vehicle, it is characterised in that：The upper rail
Road structure (91) is connected by bracket (100) with the top boom of steel truss girder, and the lower tracks structure (92) passes through bracket (100)
It is connected with the lower boom of steel truss girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711407200.9A CN108103932A (en) | 2017-12-22 | 2017-12-22 | It turns round closed type Flexible arch bridge with steel truss beam and checks vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711407200.9A CN108103932A (en) | 2017-12-22 | 2017-12-22 | It turns round closed type Flexible arch bridge with steel truss beam and checks vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN108103932A true CN108103932A (en) | 2018-06-01 |
Family
ID=62212476
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711407200.9A Pending CN108103932A (en) | 2017-12-22 | 2017-12-22 | It turns round closed type Flexible arch bridge with steel truss beam and checks vehicle |
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| Country | Link |
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| CN (1) | CN108103932A (en) |
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| CN110055891A (en) * | 2019-05-30 | 2019-07-26 | 中国水利水电第四工程局有限公司 | A kind of bridge downpipe mounting bracket |
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| CN112279165A (en) * | 2020-10-30 | 2021-01-29 | 株洲时代新材料科技股份有限公司 | Lower chord stiffening steel truss inspection vehicle lifting platform |
| CN114438878A (en) * | 2021-12-27 | 2022-05-06 | 上海市政养护管理有限公司 | Walking operation platform for maintaining steel box girder arch bridge |
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| CN110373995A (en) * | 2019-07-29 | 2019-10-25 | 成都市新筑路桥机械股份有限公司 | A kind of deck railway arch bridge crosses pier bridge-checking vehicle |
| CN112279165A (en) * | 2020-10-30 | 2021-01-29 | 株洲时代新材料科技股份有限公司 | Lower chord stiffening steel truss inspection vehicle lifting platform |
| CN114438878A (en) * | 2021-12-27 | 2022-05-06 | 上海市政养护管理有限公司 | Walking operation platform for maintaining steel box girder arch bridge |
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