CN108301311B - Camouflage type small-span automatic rapid contraction and extension emergency bridge - Google Patents
Camouflage type small-span automatic rapid contraction and extension emergency bridge Download PDFInfo
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- CN108301311B CN108301311B CN201810145224.XA CN201810145224A CN108301311B CN 108301311 B CN108301311 B CN 108301311B CN 201810145224 A CN201810145224 A CN 201810145224A CN 108301311 B CN108301311 B CN 108301311B
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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
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/10—Travelling bridges, i.e. roller bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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Abstract
A camouflage type small-span automatic rapid-contraction-extension emergency bridge comprises a bridge box, wherein the front side of the bridge box is open, a downhill guide plate assembly is arranged at the opening of the bridge box, a hydraulic station and two groups of multistage telescopic oil cylinders are fixed in the bridge box, the two groups of multistage telescopic oil cylinders are arranged side by side from left to right, the length direction of each group of multistage telescopic oil cylinders is arranged along the front-back horizontal direction, telescopic hydraulic supporting devices are fixed between the lower sides of the end parts of telescopic arms at the same level of the two groups of multistage telescopic oil cylinders, and a bridge plate laying mechanism, a chain handrail mechanism and a telescopic bridge frame mechanism are arranged in the bridge box; in conclusion, the emergency bridge is reasonable in structural design, and when an emergency situation occurs, the temporary emergency bridge can be quickly built, so that people and vehicles can conveniently pass through the emergency bridge.
Description
Technical Field
The invention belongs to the technical field of bridge equipment, and particularly relates to a camouflage type small-span automatic rapid-contraction-expansion emergency bridge.
Background
The bridge generally refers to a structure erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to pass smoothly, when bridges in certain places are damaged due to time or sudden accidents and natural disasters, emergency bridges need to be built quickly to guarantee material transportation and personnel traveling, and some existing emergency bridges are unstable in structure and complex in installation.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a small-span emergency bridge which can be automatically, quickly contracted and expanded and can be used for quickly building the emergency bridge in case of emergency.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an emergent bridge that automatic quick shrink of camouflage type small-span extends, including the bridge case, the uncovered and uncovered department in front side of bridge case is equipped with the case lid, the inside downhill path baffle subassembly that is equipped with of front side of bridge case, the bridge incasement is fixed with hydraulic pressure station and two sets of multistage flexible hydro-cylinders, set up side by side about two sets of multistage flexible hydro-cylinders, the length direction of every multistage flexible hydro-cylinder of group sets up along the fore-and-aft horizontal direction, all be fixed with telescopic hydraulic support device between the flexible arm tip downside at the same level of two sets of multistage flexible hydro-cylinders, the bridge incasement is equipped with bridge plate and lays the mechanism, chain handrail mechanism and flexible crane span structure mechanism, hydraulic pressure station pass through oil pipe respectively with telescopic hydraulic support device, bridge plate lays the mechanism, chain handrail mechanism, flexible crane span structure.
The telescopic hydraulic support device comprises a strip-shaped installation box with an opening at the bottom, the installation box is fixed between the bottom surfaces of the end parts of adjacent telescopic arms of two groups of multi-stage telescopic oil cylinders, the length direction of the installation box is arranged along the left and right horizontal directions, two groups of hydraulic support mechanisms are arranged in the installation box in a bilateral symmetry manner, the hydraulic support mechanisms positioned on the right side comprise a slide way, a support rod, a retracting oil cylinder and the multi-stage support oil cylinders, the cylinder body of the retracting oil cylinder is fixed in the installation box and the length direction of the cylinder body is arranged along the left and right horizontal directions, the end part of a piston rod of the retracting oil cylinder is fixed with a hinge block, the slide way is fixed on the inner wall of the top of the installation box and the length direction of the slide way is arranged along the left and right horizontal directions, the hinge block is connected on the slide way in a, one end of the stay bar is hinged on the hinging block, and the other end of the stay bar is hinged on the side part of the cylinder body of the multistage supporting oil cylinder.
The end part of a telescopic arm of the multi-stage supporting oil cylinder is fixed with a supporting plate, and a plurality of teeth are uniformly distributed on the lower surface of the supporting plate.
Chain handrail mechanism includes left rope and right rope, all is fixed with the connecting plate between the flexible arm tip upside at the same level of two sets of multistage flexible hydro-cylinders, the left end and the right-hand member of connecting plate all are fixed with hydraulic assist cylinder, the one end of left rope is connected at the bridge incasement wall, the piston rod tip that is located one row of hydraulic assist cylinder on left is connected to left rope, the one end of right rope is connected at the bridge incasement wall, the piston rod tip at one row of hydraulic assist cylinder that is located the right side is connected to right rope.
The telescopic bridge mechanism comprises a containing box, the containing box is fixed on the upper sides of the cylinder bodies of the two groups of multistage telescopic oil cylinders, and diamond-shaped telescopic frames are connected between the connecting plate positioned on the last side and the containing box and between the adjacent connecting plates;
the rhombic expansion bracket between the adjacent connecting plates comprises a plurality of rows of rhombic frames which are arranged side by side from left to right, each row of rhombic frame comprises a plurality of rhombic pieces which are arranged side by side from front to back, each rhombic piece is formed by encircling four short rods, the end parts of two adjacent short rods are hinged through a pin, and the adjacent rhombic pieces are hinged through a pin;
the left pin shaft and the right pin shaft which are arranged side by side are connected through a connecting rod.
The bridge plate laying mechanism comprises a mounting frame and a hydraulic motor, the mounting frame is fixed in a bridge box and is positioned at the rear side of the multistage telescopic oil cylinders, a roller is rotatably connected to the mounting frame, the central line direction of the roller is arranged along the left-right horizontal direction, a driven chain wheel is arranged on the central shaft of the roller, the hydraulic motor is fixed in the bridge box, a main chain wheel is arranged on a main shaft of the hydraulic motor, and the main chain wheel is connected with the driven chain wheel through a transmission chain;
the cylinder is wound with chain plates, the front side and the rear side of the upper surface of the containing box are respectively and rotatably connected with guide rollers, the central line directions of the two guide rollers are arranged along the left-right horizontal direction, and the front side edges of the chain plates penetrate the two guide rollers forwards and then are connected onto the connecting plate at the foremost side.
Downhill path baffle subassembly is including promoting the hydro-cylinder, first baffle and second baffle, the fixed support that is provided with in bridge top inner wall front side, the rear end of promotion hydro-cylinder articulates on the support, open bottom receiving and releasing groove has been seted up in the first baffle, the upside limit of first baffle articulates at the front side top of bridge case, the piston rod that promotes the hydro-cylinder articulates the rear side at first baffle, the second baffle slides and inserts and establish in the receiving and releasing inslot of first baffle, the side is equipped with first jack on the first baffle, the lateral part is equipped with the second jack under the first baffle, the third jack has been seted up to the lateral part on the second baffle, first jack, the length direction of second jack and third jack sets up along controlling the horizontal direction, the interpolation of second jack and third jack is equipped with the cotter board.
By adopting the technical scheme, the invention has the following beneficial effects:
(1) the emergency bridge is hidden in the stratum below the end part of the bridge when not in use as a spare bridge, and when the bridge is damaged, the emergency bridge can be started to be temporarily built; when an emergency bridge is built, the hydraulic station provides drive for the bridge plate laying mechanism, the chain handrail mechanism, the telescopic bridge frame mechanism and the two groups of multi-stage telescopic oil cylinders through oil ways; the bridge frame is characterized in that two groups of multi-stage telescopic oil cylinders are used as bridge frame main bodies, a plurality of groups of telescopic hydraulic supporting devices are used as supports, and chain plates are unfolded to serve as bridge floors, so that a temporary simple emergency bridge is built; in addition, a chain handrail mechanism is additionally arranged, and can assist personnel to safely pass through;
(2) the telescopic hydraulic support device is hidden at the lower side of the end part of the telescopic arm of the multi-stage telescopic oil cylinder, when the telescopic hydraulic support device is used, the retracting oil cylinder is started, a piston rod of the retracting oil cylinder pushes the hinge block to move, so that the hinge block moves to drive the stay bar to move, the stay bar props the multi-stage support oil cylinder until the multi-stage support oil cylinder is vertically arranged, the retracting oil cylinder is stopped, then the multi-stage support oil cylinder is started, the telescopic arm of the multi-stage support oil cylinder extends downwards until the support plate is contacted with the ground, so that the whole bridge is supported, in addition, teeth are arranged on the lower surface of the support plate;
(3) the invention provides a telescopic bridge mechanism which is formed by combining a plurality of diamond-shaped pieces, can be contracted together when not in use, and is completely opened and laid above telescopic arms of a multi-stage telescopic oil cylinder when in use, so that a chain plate is laid on the diamond-shaped pieces, and the diamond-shaped pieces are used as supports of the chain plate;
(4) when the chain plate is recovered, the hydraulic motor is started, and the hydraulic motor drives the roller to rotate through the chain, so that the chain plate is wound on the outer surface of the roller again under the rotation of the roller;
(5) the downhill guide plate assembly is arranged at the opening of the bridge box and is supported on the chain plates when in use, so that steps are prevented from being generated between the ground and the chain plates, and personnel can conveniently pass to the chain plates; in addition, when the downhill guide plate assembly is not suitable for use, the second guide plate is completely hidden in the accommodating groove of the first guide plate, and the pin plate is inserted into the first jack and the third jack, so that the first guide plate is folded and positioned in the bridge box under the action of the pushing oil cylinder.
In conclusion, the emergency bridge is reasonable in structural design, and when an emergency situation occurs, the temporary emergency bridge can be quickly built, so that people and vehicles can conveniently pass through the emergency bridge.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view at I of FIG. 1;
FIG. 3 is an enlarged view at H in FIG. 1;
FIG. 4 is a schematic structural view of a diamond-shaped telescopic frame;
fig. 5 is a schematic structural view of the telescopic hydraulic support device.
Detailed Description
As shown in fig. 1-5, the camouflage type small-span automatic rapid-contraction emergency bridge comprises a bridge box 1, wherein the front side of the bridge box 1 is open, a box cover is arranged at the opening, a downhill guide plate assembly is arranged inside the front side of the bridge box, a hydraulic station and two groups of multistage telescopic cylinders 2 are fixed in the bridge box 1, the two groups of multistage telescopic cylinders 2 are arranged side by side from left to right, the length direction of each group of multistage telescopic cylinders 2 is arranged along the front-back horizontal direction, telescopic hydraulic support devices are fixed between the lower sides of the ends of the same-stage telescopic arms of the two groups of multistage telescopic cylinders 2, a bridge plate laying mechanism, a chain handrail mechanism and a telescopic bridge frame mechanism are arranged in the bridge box 1, and the hydraulic station is respectively connected with the telescopic hydraulic support devices, the bridge plate laying mechanism, the chain handrail mechanism, the telescopic bridge frame mechanism and the two groups of multistage telescopic cylinders 2 through.
The telescopic hydraulic support device comprises a strip-shaped installation box 3 with an opening at the bottom, the installation box 3 is fixed between the bottom surfaces of the end parts of adjacent telescopic arms of two groups of multi-stage telescopic oil cylinders 2, the length direction of the installation box 3 is arranged along the left-right horizontal direction, two groups of hydraulic support mechanisms are arranged in the installation box 3, the two groups of hydraulic support mechanisms are arranged in bilateral symmetry, the hydraulic support mechanism positioned on the right side comprises a slide way 4, a support rod 5, a retraction oil cylinder 6 and a multi-stage support oil cylinder 7, a cylinder body of the retraction oil cylinder 6 is fixed in the installation box 3, the length direction of the cylinder body is arranged along the left-right horizontal direction, a hinge block 8 is fixed at the end part of a piston rod of the retraction oil cylinder 6, the slide way 4 is fixed on the inner wall at the top of the installation box 3, the length direction of the, the position of the hinge point of the upper end part of the cylinder body of the multi-stage support oil cylinder 7 and the mounting box 3 is lower than the bottom of the hinge block 8, one end of the support rod 5 is hinged on the hinge block 8, and the other end of the support rod 5 is hinged on the side part of the cylinder body of the multi-stage support oil cylinder 7.
A supporting plate 9 is fixed at the end part of a telescopic arm of the multi-stage supporting oil cylinder 7, and a plurality of teeth 10 are uniformly distributed on the lower surface of the supporting plate 9.
Chain handrail mechanism includes left rope and right rope 11, all be fixed with connecting plate 12 between the flexible arm tip upside at the same level of two sets of multistage flexible hydro-cylinders 2, the left end and the right-hand member of connecting plate 12 all are fixed with hydraulic cylinder 13, the one end of left side rope is connected at bridge box 1 inner wall, left side rope is connected at the tailpiece of the piston rod portion that is located left one row of hydraulic cylinder 13, the one end of right side rope 11 is connected at bridge box 1 inner wall, right side rope 11 is connected at the tailpiece of the piston rod portion that is located the one row of hydraulic cylinder 13 on right.
The telescopic bridge frame mechanism comprises a containing box 14, the containing box 14 is fixed on the upper sides of the cylinder bodies of the two groups of multistage telescopic cylinders 2, and rhombic telescopic frames 15 are connected between the connecting plate 12 positioned on the rearmost side and the containing box 14 and between the adjacent connecting plates 12;
the rhombic expansion bracket 15 between the adjacent connecting plates 12 comprises a plurality of rows of rhombic frames which are arranged side by side from left to right, each row of rhombic frame comprises a plurality of rhombic pieces which are arranged side by side from front to back, each rhombic piece is formed by encircling four short rods 16, the end parts of two adjacent short rods 16 are hinged through a pin 17, and the adjacent rhombic pieces are hinged through a pin 18; the pin 18 can replace the pin 17 used for connecting the two short rods 16;
the left pin shaft 18 and the right pin shaft 18 which are arranged side by side are connected through a connecting rod 19.
The bridge plate laying mechanism comprises a mounting frame 20 and a hydraulic motor 21, the mounting frame 20 is fixed in the bridge box 1 and is positioned at the rear side of the multistage telescopic oil cylinder 2, a roller 22 is rotatably connected to the mounting frame 20, the central line direction of the roller 22 is arranged along the left-right horizontal direction, a central shaft of the roller 22 is provided with a driven chain wheel, the hydraulic motor 21 is fixed in the bridge box 1, a main chain wheel 23 is arranged on a main shaft of the hydraulic motor 21, and the main chain wheel 23 is connected with a driven chain wheel 24 through a transmission chain 25;
The downhill guide plate assembly comprises a pushing oil cylinder 30, a first guide plate 31 and a second guide plate 32, a support 34 is fixedly arranged on the front side of the inner wall of the top of the bridge box 1, the rear end of the pushing oil cylinder 30 is hinged to the support 34, a retraction groove 35 with an open bottom is formed in the first guide plate 31, the upper side of the first guide plate 31 is hinged to the top of the front side of the bridge box 1, a piston rod of the pushing oil cylinder 30 is hinged to the rear side of the first guide plate 31, the second guide plate 32 is slidably inserted into the retraction groove 35 of the first guide plate 31, a first jack is formed in the upper side of the first guide plate 31, a second jack is formed in the lower side of the first guide plate 31, a third jack is formed in the upper side of the second guide plate 32, the length directions of the first jack, the second jack and the third jack are arranged in the left-right horizontal direction.
The specific structure and the working principle of the multistage telescopic oil cylinder 2 and the multistage support oil cylinder 7 are the same as those of a telescopic arm of an existing common crane. And will not be described in detail herein.
When a bridge is constructed, the method needs to be embedded in a shore stratum of a river channel, and when the bridge is collapsed and damaged in an emergency, the method can be started temporarily to construct a temporary bridge so as to facilitate passing; when the hydraulic support device works, firstly, a box cover is opened, a hydraulic station is controlled, two groups of multi-stage telescopic oil cylinders 2 are started simultaneously, telescopic arms at the same stage at the last sides of the two groups of multi-stage telescopic oil cylinders 2 extend forwards completely, because one side edge of a chain plate 26 is connected to a connecting plate 12 at the foremost side, the connecting plate 12 at the foremost side pulls the chain plate 26 and a rope forwards while the telescopic arm at the last side of the multi-stage telescopic oil cylinders 2 extends forwards, then a telescopic hydraulic support device arranged at the end part of the telescopic arm at the last side of the two groups of multi-stage telescopic oil cylinders 2 is started, wherein the retracting oil cylinder 6 is started, a piston rod of the retracting oil cylinder 6 pushes a hinge block 8 to move, so that the hinge block 8 moves to drive a support rod 5 to move, the support rod 5 props up the multi-stage support oil cylinders, the telescopic arm of the multi-stage support oil cylinder 7 extends downwards until the support plate 9 is contacted with the ground, and the teeth 10 are inserted in the ground surface layer; then starting the push oil cylinder 30, pushing a piston rod of the push oil cylinder 30 forwards to push the first guide plate 31, then taking out the pin plate 33 (at the moment, the pin plate 33 is inserted into the first pin hole and the third pin hole), pulling the second guide plate 32 downwards, inserting the pin plate 33 into the second pin hole and the third pin hole again, and then operating the push oil cylinder 30 to enable the lower side edge of the second guide plate 32 to be abutted against the upper surface of the chain plate 26, and stopping pushing the oil cylinder 30;
then, sequentially starting other telescopic arms of the multistage telescopic oil cylinder 2, and installing the steps until the end part of the telescopic arm at the foremost side of the multistage telescopic oil cylinder 2 is erected on a step preset on the bank of the river channel, wherein the surface of the chain plate 26 is in smooth transition with the road surface of the bank of the river channel; at this moment, under the driving of the connecting plate 12, the chain plate 26, the diamond-shaped expansion bracket 15 and the rope 11 are completely opened, then the auxiliary hydraulic cylinder 13 is started, and the auxiliary hydraulic cylinder 13 jacks up the rope 11 to a proper height, so that the construction work of the emergency bridge is completed.
Secondly, when the device is assembled, in order to prevent the theft of lawless persons and reduce the damage, the outer surfaces of all the parts of the device can be sprayed with camouflage pigments, so that the concealment of the whole device is improved.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides an emergent bridge that automatic quick shrink of camouflage type small-span extends which characterized in that: the hydraulic station is respectively connected with the telescopic hydraulic supporting device, the bridge plate laying mechanism, the chain handrail mechanism, the telescopic bridge frame mechanism and the two groups of multi-stage telescopic oil cylinders through oil pipes;
the telescopic hydraulic support device comprises a strip-shaped installation box with an opening at the bottom, the installation box is fixed between the bottom surfaces of the end parts of adjacent telescopic arms of two groups of multi-stage telescopic oil cylinders, the length direction of the installation box is arranged along the left and right horizontal directions, two groups of hydraulic support mechanisms are arranged in the installation box in a bilateral symmetry manner, the hydraulic support mechanisms positioned on the right side comprise a slide way, a support rod, a retracting oil cylinder and the multi-stage support oil cylinders, the cylinder body of the retracting oil cylinder is fixed in the installation box and the length direction of the cylinder body is arranged along the left and right horizontal directions, the end part of a piston rod of the retracting oil cylinder is fixed with a hinge block, the slide way is fixed on the inner wall of the top of the installation box and the length direction of the slide way is arranged along the left and right horizontal directions, the hinge block is connected on the slide way in a, one end of the support rod is hinged to the hinge block, and the other end of the support rod is hinged to the side part of the cylinder body of the multistage support oil cylinder;
downhill path baffle subassembly is including promoting the hydro-cylinder, first baffle and second baffle, the fixed support that is provided with in bridge top inner wall front side, the rear end of promotion hydro-cylinder articulates on the support, open bottom receiving and releasing groove has been seted up in the first baffle, the upside limit of first baffle articulates at the front side top of bridge case, the piston rod that promotes the hydro-cylinder articulates the rear side at first baffle, the second baffle slides and inserts and establish in the receiving and releasing inslot of first baffle, the side is equipped with first jack on the first baffle, the lateral part is equipped with the second jack under the first baffle, the third jack has been seted up to the lateral part on the second baffle, first jack, the length direction of second jack and third jack sets up along controlling the horizontal direction, the interpolation of second jack and third jack is equipped with the cotter board.
2. The camouflage type small-span automatic quick-contraction and expansion emergency bridge as claimed in claim 1, wherein: the end part of a telescopic arm of the multi-stage supporting oil cylinder is fixed with a supporting plate, and a plurality of teeth are uniformly distributed on the lower surface of the supporting plate.
3. The camouflage type small-span automatic rapid-contraction emergency bridge as claimed in claim 2, wherein: chain handrail mechanism includes left rope and right rope, all is fixed with the connecting plate between the flexible arm tip upside at the same level of two sets of multistage flexible hydro-cylinders, the left end and the right-hand member of connecting plate all are fixed with hydraulic assist cylinder, the one end of left rope is connected at the bridge incasement wall, the piston rod tip that is located one row of hydraulic assist cylinder on left is connected to left rope, the one end of right rope is connected at the bridge incasement wall, the piston rod tip at one row of hydraulic assist cylinder that is located the right side is connected to right rope.
4. The camouflage type small-span automatic rapid-contraction emergency bridge according to claim 3, wherein the emergency bridge comprises: the telescopic bridge mechanism comprises a containing box, the containing box is fixed on the upper sides of the cylinder bodies of the two groups of multistage telescopic oil cylinders, and diamond-shaped telescopic frames are connected between the connecting plate positioned on the last side and the containing box and between the adjacent connecting plates;
the rhombic expansion bracket between the adjacent connecting plates comprises a plurality of rows of rhombic frames which are arranged side by side from left to right, each row of rhombic frame comprises a plurality of rhombic pieces which are arranged side by side from front to back, each rhombic piece is formed by encircling four short rods, the end parts of two adjacent short rods are hinged through a pin, and the adjacent rhombic pieces are hinged through a pin;
the left pin shaft and the right pin shaft which are arranged side by side are connected through a connecting rod.
5. The camouflage type small-span automatic rapid-contraction emergency bridge according to claim 4, wherein the emergency bridge comprises: the bridge plate laying mechanism comprises a mounting frame and a hydraulic motor, the mounting frame is fixed in a bridge box and is positioned at the rear side of the multistage telescopic oil cylinders, a roller is rotatably connected to the mounting frame, the central line direction of the roller is arranged along the left-right horizontal direction, a driven chain wheel is arranged on the central shaft of the roller, the hydraulic motor is fixed in the bridge box, a main chain wheel is arranged on a main shaft of the hydraulic motor, and the main chain wheel is connected with the driven chain wheel through a transmission chain;
the cylinder is wound with chain plates, the front side and the rear side of the upper surface of the containing box are respectively and rotatably connected with guide rollers, the central line directions of the two guide rollers are arranged along the left-right horizontal direction, and the front side edges of the chain plates penetrate the two guide rollers forwards and then are connected onto the connecting plate at the foremost side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145224.XA CN108301311B (en) | 2018-02-12 | 2018-02-12 | Camouflage type small-span automatic rapid contraction and extension emergency bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145224.XA CN108301311B (en) | 2018-02-12 | 2018-02-12 | Camouflage type small-span automatic rapid contraction and extension emergency bridge |
Publications (2)
| Publication Number | Publication Date |
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| CN108301311A CN108301311A (en) | 2018-07-20 |
| CN108301311B true CN108301311B (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810145224.XA Expired - Fee Related CN108301311B (en) | 2018-02-12 | 2018-02-12 | Camouflage type small-span automatic rapid contraction and extension emergency bridge |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112144373B (en) * | 2019-06-28 | 2022-01-07 | 比亚迪股份有限公司 | Rail vehicle transfer method, system, device, electronic equipment and storage medium |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024595A (en) * | 1976-05-21 | 1977-05-24 | James Brown | Linkage bridge |
| CN201593160U (en) * | 2009-11-26 | 2010-09-29 | 广州大学 | Movable and telescopic passenger foot bridge |
| CN201598546U (en) * | 2009-12-08 | 2010-10-06 | 济南金力液压机械有限公司 | Quick telescopic railway span bridge |
| CN204626234U (en) * | 2015-04-30 | 2015-09-09 | 瑞安市国宏市政建设有限公司 | A kind of telescopic emergency bridge |
| CN204849564U (en) * | 2015-07-20 | 2015-12-09 | 徐州工程学院 | Emergency rescue passageway laying vehicle's flexible slab bridge's safety handle structure |
| CN106948252B (en) * | 2017-03-27 | 2019-04-05 | 陕西科技大学 | The telescopic feeding emergency bridge of synchronous belt and its application method |
| CN107217582B (en) * | 2017-06-16 | 2019-01-29 | 东南大学 | Arch bridge is opened up based on scissors hinge the quick of unit |
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2018
- 2018-02-12 CN CN201810145224.XA patent/CN108301311B/en not_active Expired - Fee Related
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