CN111676867A - Anti-collision guardrail device - Google Patents
Anti-collision guardrail device Download PDFInfo
- Publication number
- CN111676867A CN111676867A CN202010505773.0A CN202010505773A CN111676867A CN 111676867 A CN111676867 A CN 111676867A CN 202010505773 A CN202010505773 A CN 202010505773A CN 111676867 A CN111676867 A CN 111676867A
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- Prior art keywords
- energy
- buffering
- corrugated pipe
- flexible corrugated
- matching surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003139 buffering effect Effects 0.000 claims abstract description 50
- 239000000945 filler Substances 0.000 claims abstract description 17
- 238000010521 absorption reaction Methods 0.000 claims abstract description 14
- 239000000872 buffer Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000004888 barrier function Effects 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 15
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 239000011381 foam concrete Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 3
- 244000060011 Cocos nucifera Species 0.000 description 3
- -1 admixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses an anti-collision guardrail device, which comprises an upright post, a first anti-collision device and a second anti-collision device, wherein the upright post is arranged on the upper part of the upright post; the flexible corrugated pipe is provided with an impact side and a guide side which are distributed on two axial sides; and the buffering energy-absorbing block is connected between the upright post and the flexible corrugated pipe, the buffering energy-absorbing block is provided with a first matching surface and a second matching surface which are oppositely arranged, the first matching surface of the buffering energy-absorbing block is matched and connected with the upper end part of the upright post, the second matching surface of the buffering energy-absorbing block is matched and connected with the guide side of the flexible corrugated pipe, the impact side points to the second matching surface, and the flexible corrugated pipe is internally filled with energy buffering fillers. The travelling crane collides with the impact side of the flexible corrugated pipe, the energy buffering filler in the flexible corrugated pipe buffers and absorbs energy, redundant energy is transmitted to the guide side and is transmitted to the buffering energy-absorbing block through the second matching surface to perform secondary energy buffering and absorption, and finally the upright post with higher rigidity absorbs impact energy. The anti-collision guardrail device has better rigidity, buffering energy-absorbing performance and guiding performance, and ensures the safety of people and vehicles.
Description
Technical Field
The invention relates to the technical field of highway safety protection, in particular to an anti-collision guardrail device.
Background
With the development of the transportation industry, accidents frequently happen during high-speed driving, the safety of drivers and passengers is seriously threatened, and the performance requirements on the basic protection facilities are higher and higher for ensuring the safe driving requirements.
The existing highway anti-collision guardrail mainly comprises a rigid concrete guardrail, a semi-rigid corrugated steel guardrail and a flexible cable guardrail. The concrete guardrail driving is serious in oppression feeling, and the collision damage degree is large under high-speed driving due to large rigidity; the flexible cable guardrail has limited protection function and is only suitable for road protection in landscape areas with high requirements on perspective; the waveform steel guardrail has the advantages of both strength and energy absorption, and is applied to most of highway protection facilities, but the waveform steel plate of the waveform steel guardrail is easy to penetrate through a carriage of a collision vehicle to cause secondary accident injury, and the energy absorption and guide effects of the waveform guardrail can not meet the requirements gradually under the condition of increasingly accelerated high-speed driving.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, and provides an anti-collision guardrail device which has better strength, guiding performance and energy absorption performance.
The technical scheme adopted by the invention is as follows: anti-collision guardrail device includes:
a column;
the flexible corrugated pipe is provided with an impact side and a guide side which are distributed on two axial sides; and
the buffering and energy-absorbing block is connected between the upright post and the flexible corrugated pipe and is provided with a first matching surface and a second matching surface which are oppositely arranged, the first matching surface of the buffering and energy-absorbing block is matched and connected with the upper end part of the upright post, the second matching surface of the buffering and energy-absorbing block is matched and connected with the guide side of the flexible corrugated pipe, the impact side points to the second matching surface, and the flexible corrugated pipe is internally filled with energy buffering fillers.
The method has the following beneficial effects: the flexible corrugated pipe realizes absorption and guiding of impact energy, the flexible corrugated pipe allows certain deformation, a traveling crane collides with the impact side of the flexible corrugated pipe, energy buffering fillers filled in the flexible corrugated pipe buffer and absorb energy, meanwhile, redundant energy is transmitted to the guiding side, then the redundant energy is transmitted to the buffering energy-absorbing block through the second matching surface, secondary energy buffering and absorption are carried out, and finally, the upright post with higher rigidity absorbs impact energy. The anti-collision guardrail device has better rigidity, buffering energy-absorbing performance and guiding performance, and effectively protects the safety of drivers and passengers.
In some of these embodiments, the flexible bellows is elliptical in cross-section or approximately elliptical in cross-section formed by a plurality of arcuate segments.
In some of these embodiments, the length of the major axis of the ellipse or near ellipse is equal to the height of the energy absorbing bumper.
In some embodiments, a steel wire bundle is arranged in the flexible corrugated pipe, and the energy buffering filler is filled in the flexible corrugated pipe and is integrally connected with the steel wire bundle.
In some embodiments, a nylon cord is further disposed in the flexible corrugated tube, and the energy buffering filler is filled in the flexible corrugated tube and integrally connected with the nylon cord and the steel wire bundle.
In some embodiments, the energy absorption block includes a hollow cylinder, a clamping groove is formed in the hollow cylinder, an elastic member is arranged in the clamping groove, one end of the elastic member abuts against the bottom of the clamping groove, the other end of the elastic member penetrates through the hollow cylinder and abuts against the guide side of the flexible corrugated pipe directly or indirectly, and a non-newtonian fluid material is filled in the hollow cylinder.
In some embodiments, the hollow cylinder is a hexagonal cylinder, the upright column is a cylinder, one side surface of the hexagonal cylinder serves as a first matching surface, and the first matching surface is concave to form an arc surface attached to the cylinder.
In some of the embodiments, a cushion layer is arranged between the hexagonal columns and the guide side, one side of the cushion layer is a plane fitted with the hexagonal columns, and the other side of the cushion layer is an arc-shaped curved surface fitted with the corrugations.
In some embodiments, the upright column and the energy-absorbing buffer block and the flexible corrugated pipe and the energy-absorbing buffer block are detachably connected.
In some of these embodiments, the energy dampening filler is fiber foam concrete.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a front view of a crash barrier device according to an embodiment of the present invention;
FIG. 2 is a first cross-sectional view of the crash barrier assembly;
FIG. 3 is a second cross-sectional view of the crash barrier assembly;
fig. 4 is a schematic view of the overall structure of a crash barrier apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 4, an embodiment of the present invention provides an anti-collision guardrail device, which mainly comprises an upright post 1, a flexible corrugated tube 3, and a buffering energy absorption block 2. Wherein, the upright column 1 is vertically and upwards fixedly arranged in the foundation 8, the buffering energy-absorbing block 2 is detachably arranged at the upper end part of the upright column 1 through a first bolt 51, and the flexible corrugated pipe 3 is detachably arranged on the buffering energy-absorbing block 2 through a second bolt 52. The upright post 1, the flexible corrugated pipe 3 and the buffering energy absorption block 2 are used as prefabricated parts to be manufactured in advance in a factory, bolt holes are reserved during manufacturing, assembly and disassembly are convenient, and the flow and operation of site construction are simplified.
Specifically, the flexible bellows 3 has an impact side 41 and a guide side 42 distributed on both sides in the axial direction, and the flexible bellows 3 is filled with an energy buffering filler. The impact side 41 is located forward of the entire crash barrier device to receive the impact of a vehicle. The buffering energy-absorbing block 2 is connected between the upright post 1 and the flexible corrugated pipe 3, and the upright post 1 is positioned behind the whole anti-collision guardrail device and used for fixing the whole device and serving as the last defense line for stopping a travelling crane. The buffering energy-absorbing block 2 is provided with a first matching surface and a second matching surface which are oppositely arranged, and the first matching surface of the buffering energy-absorbing block 2 is matched and connected with the upper end part of the upright post 1, so that the transmission of collision energy is facilitated; the second matching surface of the energy-absorbing buffer block 2 is matched and connected with the guide side 42 of the flexible corrugated pipe 3, the impact side 41 points to the second matching surface, and the collision energy can be guided to the guide side 42 from the impact side 41 under the guidance of the structure of the flexible corrugated pipe 3.
The flexible corrugated pipe 3 absorbs and guides impact energy, the flexible corrugated pipe 3 is allowed to deform to a certain extent, a travelling crane collides with the impact side 41 of the flexible corrugated pipe 3, energy buffering fillers filled in the flexible corrugated pipe 3 buffer and absorb energy, meanwhile, redundant energy is transmitted to the guide side 42 and then transmitted to the buffering energy-absorbing block 2 through the second matching surface to buffer and absorb secondary energy, and finally, the upright post 1 with higher rigidity absorbs impact energy. The anti-collision guardrail device has better rigidity, buffering energy-absorbing performance and guiding performance through the combination of the flexible corrugated pipe 3, the upright post 1 with higher rigidity and the buffering energy-absorbing block 2, and effectively protects the safety of drivers and passengers.
In some of these embodiments, the cross-section of the flexible bellows 3 is elliptical or approximately elliptical formed by a plurality of arcuate segments. It should be understood that the shape of the approximate ellipse is approximately the same as the ellipse, and the multiple arc segments are spliced with each other and are transited into the arc at the spliced position to form the approximate ellipse. The shape of the ellipse or the approximate ellipse has the property of convergence, which is beneficial to realizing the guidance of collision energy.
Preferably, the length of the major axis of the ellipse or near ellipse is equal to the height of the energy absorbing bumper block 2. It will be appreciated that the impact side 41 and the leading side 42 each occupy half of the elliptical or near elliptical shape, ensuring a balance of energy absorption at the impact side 41 and energy transfer at the leading side 42.
In some embodiments, the steel wire bundles are disposed in the flexible corrugated tube 3, and the energy buffering filler is filled in the flexible corrugated tube 3 and integrally connected with the steel wire bundles, so as to enhance the rigidity of the flexible corrugated tube 3 as a whole. Preferably, the steel wool strands are arranged helically inside the flexible bellows 3.
In some embodiments, a nylon cord is further disposed in the flexible corrugated tube 3, and the energy buffering filler is filled into the flexible corrugated tube 3 and integrally connected with the nylon cord and the steel wire bundle, so as to increase the stability of the connection of the energy buffering filler and the steel wire bundle.
The flexible corrugated pipe 3 has higher toughness, higher buffering and energy absorbing performance and larger deformability, but has lower strength and rigidity, so that the steel wire bundles and the nylon cord are additionally arranged in the flexible corrugated pipe 3, the better buffering and energy absorbing performance and the toughness deformability can be kept, the strength of the flexible corrugated pipe 3 can be effectively improved, the effect of retarding a collided vehicle is achieved, and the collided vehicle is forced to return to the normal driving direction.
In some embodiments, the energy absorption block 2 includes a hollow cylinder, a slot is disposed in the hollow cylinder, an elastic member is disposed in the slot, one end of the elastic member abuts against the bottom of the slot, the other end of the elastic member passes through the hollow cylinder and abuts against the guiding side 42 of the flexible corrugated tube 3 directly or indirectly, and the hollow cylinder is filled with a non-newtonian fluid material.
Specifically, the elastic member is a spring 6, the spring 6 is made to have larger rigidity, and the non-Newtonian fluid material is a high-damping filling material 7. A clamping groove for anchoring the spring 6 is formed in the hollow column body, and the spring 6 is anchored on the inner wall of the hollow column body. The spring 6 can provide buffering power under the action of impact load, and the high-damping buffering material can absorb impact energy and improve the buffering performance of facilities.
In some embodiments, the hollow cylinder is a hexagonal cylinder, the column 1 is a cylinder, one side surface of the hexagonal cylinder serves as a first matching surface, and the first matching surface is concave to form a circular arc surface attached to the cylinder. Through the cooperation of the arc surface and the side wall of the cylinder, the collision energy is uniformly transferred.
In some of these embodiments, a shim is provided between the hexagonal cylinder and the guiding side 42, with one side of the shim being configured as a flat surface that conforms to the hexagonal cylinder and the other side configured as an arcuate surface that conforms to the corrugations. It should be understood that the cushion layer can be a steel structure, the cushion layer is fixed on the hexagonal column by welding, and meanwhile, the arc-shaped curved surface of the cushion layer covers half of the flexible corrugated pipe 3, so that the impact energy can be transferred to the maximum extent.
In some of these embodiments, the energy dampening filler is fiber foam concrete 4. The fiber foam concrete 4 is prepared by mixing cement mortar binder, admixture, foam and fiber, the fiber is basalt fiber, glass fiber, polypropylene fiber, polyvinyl alcohol fiber, carbon fiber, bamboo fiber, coconut fiber and other common foam concrete reinforcing and toughening fibers, and the coconut fiber and other coconut fibers are easy to obtain, low in price and ecological and environment-friendly organic fibers are preferred according to the engineering application requirements of environmental protection and low energy consumption.
Preferably, the flexible bellows 3 is a rubber tube.
The anti-collision guardrail device is simple in design and convenient to construct, and can effectively absorb collision energy through multi-layer elastic deformation and plastic deformation of the anti-collision guardrail device when a high-speed running vehicle collides with a guardrail, so that the anti-collision guardrail device plays a role in safety protection. Meanwhile, the fiber foam concrete 4 is used as a buffering energy-absorbing material, so that the buffering energy-absorbing performance can be fully exerted, the economic cost is low, and the environment is friendly.
Meanwhile, the energy absorption device is not only applied to the collision of roads or vehicles, but also applied to the collision energy absorption of other high-speed running objects.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. Anticollision barrier device, its characterized in that includes:
a column;
the flexible corrugated pipe is provided with an impact side and a guide side which are distributed on two axial sides; and
the buffering and energy-absorbing block is connected between the upright post and the flexible corrugated pipe and is provided with a first matching surface and a second matching surface which are oppositely arranged, the first matching surface of the buffering and energy-absorbing block is matched and connected with the upper end part of the upright post, the second matching surface of the buffering and energy-absorbing block is matched and connected with the guide side of the flexible corrugated pipe, the impact side points to the second matching surface, and the flexible corrugated pipe is internally filled with energy buffering fillers.
2. A crash barrier apparatus as defined in claim 1, wherein: the cross section of the flexible corrugated pipe is oval or is formed by splicing a plurality of sections of arcs to form an approximate oval.
3. A crash barrier apparatus as defined in claim 2, wherein: the length of the major axis of the ellipse or the approximate ellipse is equal to the height of the energy-absorbing buffer block.
4. A crash barrier apparatus as defined in claim 1, wherein: and a steel wire bundle is arranged in the flexible corrugated pipe, and the energy buffering filler is filled into the flexible corrugated pipe and is connected with the steel wire bundle into a whole.
5. A crash barrier apparatus according to claim 4, wherein: and a nylon cord is further arranged in the flexible corrugated pipe, and the energy buffering filler is filled in the flexible corrugated pipe and is connected with the nylon cord and the steel wire bundle into a whole.
6. A crash barrier according to any one of claims 1 to 5, wherein: the energy absorption buffer block comprises a hollow column body, a clamping groove is formed in the hollow column body, an elastic part is arranged in the clamping groove, one end of the elastic part is abutted against the bottom of the clamping groove, the other end of the elastic part penetrates through the hollow column body and is directly or indirectly abutted against the guide side of the flexible corrugated pipe, and a non-Newtonian fluid material is filled in the hollow column body.
7. A crash barrier device according to claim 6, wherein: the hollow cylinder is a hexagonal cylinder, the stand is a cylinder, one of them side of hexagonal cylinder is as first fitting surface, the concave arc surface that forms with the cylinder laminating of first fitting surface.
8. A crash barrier device according to claim 7, wherein: and a cushion layer is arranged between the hexagonal cylinder and the guide side, one side of the cushion layer is arranged into a plane which is attached to the hexagonal cylinder, and the other side of the cushion layer is arranged into an arc-shaped curved surface which is fit with the corrugation.
9. A crash barrier according to any one of claims 1 to 5, wherein: the upright posts are detachably connected with the buffering energy-absorbing blocks and the flexible corrugated pipes are detachably connected with the buffering energy-absorbing blocks.
10. A crash barrier according to any one of claims 1 to 5, wherein: the energy buffering filler is fiber foam concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010505773.0A CN111676867A (en) | 2020-06-05 | 2020-06-05 | Anti-collision guardrail device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010505773.0A CN111676867A (en) | 2020-06-05 | 2020-06-05 | Anti-collision guardrail device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111676867A true CN111676867A (en) | 2020-09-18 |
Family
ID=72435013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010505773.0A Pending CN111676867A (en) | 2020-06-05 | 2020-06-05 | Anti-collision guardrail device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111676867A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293494A (en) * | 2021-12-14 | 2022-04-08 | 杨锡武 | Highway parabola wave form reinforcing bar flexibility guardrail structure |
| CN115162879A (en) * | 2022-06-24 | 2022-10-11 | 上汽通用汽车有限公司 | Buffer device and automobile comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200305617Y1 (en) * | 2002-11-29 | 2003-03-03 | (주)대성종합기술공사 | Buffing structure for guardrail on the road |
| CN202989819U (en) * | 2012-12-13 | 2013-06-12 | 宁波大学 | Flexible expressway guardrail |
| CN110344317A (en) * | 2019-06-17 | 2019-10-18 | 广州大学 | A kind of assembled anti-collision wall and its installation method |
| CN209619912U (en) * | 2019-01-21 | 2019-11-12 | 长安大学 | A kind of anticollision barrier |
| CN209873640U (en) * | 2019-01-08 | 2019-12-31 | 广州大学 | Environment-friendly highway crash barrier |
| CN212294464U (en) * | 2020-06-05 | 2021-01-05 | 广州大学 | Anti-collision guardrail device |
-
2020
- 2020-06-05 CN CN202010505773.0A patent/CN111676867A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200305617Y1 (en) * | 2002-11-29 | 2003-03-03 | (주)대성종합기술공사 | Buffing structure for guardrail on the road |
| CN202989819U (en) * | 2012-12-13 | 2013-06-12 | 宁波大学 | Flexible expressway guardrail |
| CN209873640U (en) * | 2019-01-08 | 2019-12-31 | 广州大学 | Environment-friendly highway crash barrier |
| CN209619912U (en) * | 2019-01-21 | 2019-11-12 | 长安大学 | A kind of anticollision barrier |
| CN110344317A (en) * | 2019-06-17 | 2019-10-18 | 广州大学 | A kind of assembled anti-collision wall and its installation method |
| CN212294464U (en) * | 2020-06-05 | 2021-01-05 | 广州大学 | Anti-collision guardrail device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293494A (en) * | 2021-12-14 | 2022-04-08 | 杨锡武 | Highway parabola wave form reinforcing bar flexibility guardrail structure |
| CN115162879A (en) * | 2022-06-24 | 2022-10-11 | 上汽通用汽车有限公司 | Buffer device and automobile comprising same |
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