CN114855675A - Improved integral flexible guardrail capable of dissipating energy and installation method thereof - Google Patents
Improved integral flexible guardrail capable of dissipating energy and installation method thereof Download PDFInfo
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- CN114855675A CN114855675A CN202210580709.8A CN202210580709A CN114855675A CN 114855675 A CN114855675 A CN 114855675A CN 202210580709 A CN202210580709 A CN 202210580709A CN 114855675 A CN114855675 A CN 114855675A
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- 238000000034 method Methods 0.000 title claims description 8
- 238000009434 installation Methods 0.000 title claims description 7
- 239000002184 metal Substances 0.000 claims abstract description 73
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 5
- 239000010920 waste tyre Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 5
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 210000003205 muscle Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
- E01F15/06—Continuous barriers extending along roads or between traffic lanes essentially made of cables, nettings or the like
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
An improved integral flexible guardrail capable of dissipating energy comprises a plurality of upright columns arranged in rows and a plurality of rows of cables arranged on the upright columns at different horizontal heights; the cable is provided with a metal connecting plate which is connected with a plurality of rows of cables at the same time, the metal connecting plate is arranged on the plurality of rows of cables in an overhead manner, and the metal connecting plates are arranged in rows along the arrangement direction of the plurality of columns; the metal connecting plate is provided with a plurality of hoops connected with the cables, and the hoops correspond to the rows of cables one to one; the metal connecting plate is also provided with a connecting piece, and the connecting piece is provided with a rubber buffer layer; the rubber buffer layer and the metal connecting plate are arranged on two opposite sides of the cable; compared with the prior art, through with the cable cross-under on stand and metal connecting plate for the cable can carry out certain slip when receiving the impact of external force, thereby realizes the buffering of cable to impact force, and overall structure is simple, design benefit when promoting flexible guardrail security, does not increase too much time limit for a project.
Description
Technical Field
The invention relates to the technical field of protective devices, in particular to an improved integral flexible guardrail capable of dissipating energy and an installation method thereof.
Background
In the construction of rural roads, flexible guardrails are generally adopted as protective measures, and the traditional flexible guardrails are made of a plurality of long cables which pass through the through holes and are lapped on steel upright posts with the same distance. Because the stand interval is great, when receiving the collision, the atress of every hawser is relatively independent, and it is too big to suffer destruction to appear single probably atress, and the inhomogeneous atress condition such as the remaining hawser is then the atress is less. Meanwhile, each cable is different in collision condition, the deformation direction is uncertain when stressed, and the condition that a vehicle rolls over a guardrail easily occurs during collision.
Chinese patent No. CN110093883A discloses a flexible guardrail, which comprises a plurality of upright posts arranged in rows, a base mounted at the bottom of the upright posts, and a rib beam assembly mounted between the upright posts, wherein an elastic body is arranged inside the bottom ends of the upright posts, and the elastic body is fixedly connected to the base; the rib beam assembly comprises a first rib beam, and the first rib beam sequentially penetrates through the lower parts of the upright posts; the part of the first rib beam in the stand column is connected to the elastic body in the stand column through a first connecting rod, the first connecting rod penetrates through the elastic body, the elastic body can be elastically deformed under the action of force applied by the first connecting rod, and the top end of the first connecting rod is fixedly connected to the first rib beam.
Above-mentioned this kind of flexible guardrail of disclosing is in the use, when the car takes place the contact with flexible guardrail, the car with the muscle roof beam subassembly bump, and because the muscle roof beam subassembly is rigid material, after contacting with the car, the atress of every muscle roof beam subassembly is relatively independent, has the too big cracked phenomenon of corresponding muscle roof beam subassembly that leads to the fact of atress easily to there is certain potential safety hazard.
The integral flexible guardrail of improved generation that the event needs an energy dissipation, under the prerequisite of guaranteeing low cost, improves the wholeness of the vertical atress of hawser between the stand, reduces the risk that single hawser destroys to satisfy the maintenance and dismantle the demand of changing or maintaining at any time.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an improved integral flexible guardrail with uniform stress and energy dissipation and convenient later-stage maintenance and repair and an installation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: an improved integral flexible guardrail capable of dissipating energy comprises a plurality of upright columns arranged in rows and a plurality of rows of cables arranged on the upright columns at different horizontal heights; the cable is provided with a metal connecting plate which is connected with a plurality of rows of cables at the same time, the metal connecting plate is arranged on the plurality of rows of cables in an overhead manner, and the metal connecting plates are arranged in rows along the arrangement direction of the plurality of columns; the metal connecting plate is provided with a plurality of hoops connected with the cables, and the hoops correspond to the rows of cables one to one; the metal connecting plate is also provided with a connecting piece, and the connecting piece is provided with a rubber buffer layer; the rubber buffer layer and the metal connecting plate are arranged on two opposite sides of the cable.
According to a preferred scheme of the invention, the upright posts and the metal connecting plate are both vertically arranged, a plurality of preformed holes distributed along the height direction of the metal connecting plate are formed in the metal connecting plate, the preformed holes correspond to the hoops one to one, and the hoops are inserted into the corresponding preformed holes.
According to a preferable scheme of the invention, the hoop comprises a hoop head and a joint which are connected, the cable is inserted into the hoop head, the joint is inserted into the reserved hole, the joint is connected with a bolt, and the bolt and the hoop head are positioned on two opposite sides of the metal connecting plate.
In a preferred embodiment of the present invention, the length of the bolt is greater than the diameter of the prepared hole.
As a preferable scheme of the invention, the connecting piece is an S-shaped hook, the top of the S-shaped hook is hung between the metal connecting plate and the cable, and the bottom of the S-shaped hook is hung with the rubber buffer layer.
As a preferable scheme of the invention, the connecting piece is a metal binding band which binds the rubber buffer layer, the metal connecting plate and the cable rope simultaneously.
In a preferred embodiment of the present invention, the rubber buffer layer is a waste tire.
As a preferable scheme of the present invention, the upright post is provided with a buckle connected with the cable.
An installation method of an improved integral flexible guardrail capable of dissipating energy comprises the following steps:
step A: prefabricating the upright posts and the metal connecting plates in a factory and transporting the upright posts and the metal connecting plates to a site;
and B: fixing the stand column, and directly driving the stand column into a corresponding position on the ground through a pile driver;
and C: installing cables, sequentially penetrating the cables through buckles arranged in rows on a plurality of stand columns at the same height, and penetrating a plurality of rows of cables according to the arrangement of the buckles on the stand columns;
step D: installing a hoop, and sleeving the hoop on the cable while the cable is connected to the buckle in a penetrating manner;
step E: mounting a metal connecting plate, moving the hoops to a certain position to enable the hoops on the multiple rows of cables to be positioned on the same vertical line, inserting joints of the hoops into reserved holes of the metal connecting plate in an inserting mode, and connecting the joints of the hoops through bolts;
step F: and installing a connecting piece, wherein the connecting piece is installed at the joint of the cable and the hoop, and a rubber buffer layer is installed on the connecting piece.
As a preferable scheme of the invention, the connecting piece is an S-shaped hook or a metal binding band.
Compared with the prior art, the invention has the beneficial effects that:
1. the cable is connected to the upright post and the metal connecting plate in a penetrating manner, so that the cable can slide to a certain extent when being impacted by external force, and the impact force of the cable is buffered;
2. the metal connecting plates are arranged, so that the integrity of vertical stress of cables among the stand columns is improved, the risk of damage of a single cable is reduced, single stress is changed into vertical integral stress, and instantaneous impact force is changed into a flexible stress surface from single bearing, so that the local stress strength is reduced;
3. through the design of the hoop head, after the cable collides with a vehicle, only the hoop head of the integral cable is detached, replaced or maintained, so that the maintenance cost and difficulty are reduced;
4. the rubber energy dissipation materials are added, the waste tires are hung at the nodes and connected with the guardrails, waste products are fully utilized for recycling, the integral anti-collision strength of the guardrails is improved, and the safety of drivers and passengers in accidents is guaranteed;
5. overall structure is simple, and design benefit when promoting flexible guardrail security, does not increase too much time limit for a project.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an S-shaped hook;
FIG. 3 is a schematic structural view of a metal connecting plate;
FIG. 4 is a schematic view of the structure of the clamp;
FIG. 5 is a schematic view of the use of the clamp;
reference numerals are as follows: the novel rubber buffer clamp comprises an upright post 1, a rubber buffer layer 2, a cable 3, a hoop 4, a bolt 4-1, a hoop head 4-2, a joint 4-3, a connecting piece 5, a metal connecting plate 6, a reserved hole 6-1 and a buckle 7.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-5, an improved integral flexible guard rail capable of dissipating energy comprises a plurality of columns 1 arranged in rows, and a plurality of rows of cables 3 installed on the columns 1 at different levels; the cable 3 is provided with metal connecting plates 6 which are simultaneously connected with the multiple rows of cables 3, the metal connecting plates 6 are arranged on the multiple rows of cables 3 in an overhead manner, and the metal connecting plates 6 are arranged in rows along the arrangement direction of the multiple upright posts 1; the metal connecting plate 6 is provided with a plurality of hoops 4 connected with the cables 3, and the hoops 4 correspond to the rows of the cables 3 one by one; the metal connecting plate 6 is also provided with a connecting piece 5, and the connecting piece 5 is provided with a rubber buffer layer 2; the rubber buffer layer 2 and the metal connecting plate 6 are provided on opposite sides of the cable 3.
Stand 1 arranges in proper order along the length direction of road, interval between the stand 1 can design according to actual need, it is specific, when the road is sharp road, interval between the adjacent stand 1 can be great relatively, when the road is crooked route, interval between the adjacent stand 1 can be less relatively, also can set up with comparatively safe highway section stand 1 according to the easy dangerous highway section that takes place of road, interval is less between the stand 1 adjacent in the easy dangerous highway section that takes place, interval is great between the stand 1 adjacent in comparatively safe highway section.
The height of stand 1 also designs according to actual road needs, and is corresponding, and 3 quantity of cable on the stand 1 also designs according to actual need, and the equal level of multirow cable 3 sets up on stand 1, and parallel arrangement between the multirow cable 3, forms the grid structure between the cable 3 of level setting and the metal connecting plate 6 of vertical setting for the whole atress of guardrail is even.
Rubber buffer layer 2 arranges in proper order along the direction that sets up of flexible guardrail, and contacts between the adjacent rubber buffer layer 2, ensures that there is not the buffering leak in the flexible guardrail inboard, and rubber buffer layer 2 highly designs according to the vehicle height, ensures that the vehicle is when bumping with flexible guardrail, and the vehicle is at first bumping with rubber buffer layer 2, cushions the car under rubber buffer layer 2's effect.
Because the cable 3 is threaded on the hoop 4, the cable 3 can slide relatively under the stress condition, so that the stress of the cable 3 is buffered, the rubber buffer layer 2 is positioned on the inner side of a road, and the metal connecting plate 6 is positioned on the outer side of the road.
The upright column 1 and the metal connecting plate 6 are both vertically arranged, a plurality of preformed holes 6-1 which are distributed along the height direction of the metal connecting plate 6 are formed in the metal connecting plate 6, the preformed holes 6-1 correspond to the clamps 4 one by one, and the clamps 4 are inserted into the corresponding preformed holes 6-1.
The metal connecting plate 6 is arranged in an overhead mode, when the cable 3 is impacted, the metal connecting plate 6 can be correspondingly inclined, so that the cable 3 can be bent conveniently, the cable 3 can be deformed in a buffering mode conveniently, and the number of the reserved holes 6-1, the number of the clamping hoops 4 and the number of the cables 3 are consistent.
The hoop 4 comprises a hoop head 4-2 and a joint 4-3 which are connected, the cable 3 is inserted into the hoop head 4-2, the joint 4-3 is inserted into the reserved hole 6-1, the joint 4-3 is connected with a bolt 4-1, and the bolt 4-1 and the hoop head 4-2 are positioned on two opposite sides of the metal connecting plate 6.
The hoop head 4-2 is an annular structure composed of reinforcing steel bars, after the cable 3 is inserted into the hoop head 4-2, when the cable 3 receives external impact, the cable 3 can slide along the opening direction of the hoop head 4-2, so that the buffering of the cable 3 is realized, the size of the hoop head 3 is larger than that of the reserved hole 6-1, and the hoop head 3 is always positioned on the inner side of the metal connecting plate 6 when the hoop 4 is inserted on the metal connecting plate 6.
The length of the bolt 4-1 is larger than the diameter of the preformed hole 6-1, so that the bolt 4-1 is always positioned on the outer side of the metal connecting plate 6 after the bolt 4-1 is connected, the hoop head 3 and the bolt 4-1 are always positioned on two sides of the metal connecting plate 6, and stable connection of the hoop 4 on the metal connecting plate 6 is realized.
Connecting piece 5 is the S type couple, and the S type couple top articulates between metal connecting plate 6 and cable 3, and S type couple bottom articulates with rubber buffer layer 2, and the slope of S type couple sets up between metal connecting plate 6 and cable 3, and when rubber buffer layer 2 was junked tire, the S type couple bottom that the slope set up articulates with rubber buffer layer 2' S inner circle mutually to under the effect of the S type couple that two slopes set up, stably articulate rubber buffer layer 2.
Connecting piece 5 is the metal ligature area, and the metal ligature area is carried out the ligature with rubber buffer layer 2, metal connecting plate 6 and cable 3 simultaneously, and when rubber buffer layer 2 was the junked tire, the metal ligature area was carried out the ligature simultaneously to rubber buffer layer 2's both sides and is fixed, fixes rubber buffer layer 2 with the same reason.
Be equipped with the buckle 7 that is connected with cable 3 on the stand 1, buckle 7 is eyebolt or clamp structure, and in whole flexible guardrail, not co-altitude cable 3 can comprise same root cable 3 to make cable 3 when the atress condition, the transmission and the buffering of the force of being convenient for, whole better mechanical strength that has.
An installation method of an improved integral flexible guardrail capable of dissipating energy comprises the following steps:
step A: drawing a corresponding drawing according to actual needs on site, prefabricating the upright post 1 and the metal connecting plate 6 in a factory according to the drawing, and transporting to the site.
And B: the stand 1 is fixed, according to actual need prescribes corresponding point of squeezing into in advance on the road surface, directly squeezes into the corresponding position on ground with stand 1 through the pile driver for stand 1 arranges in proper order along the length direction of road.
And C: install cable 3, pass buckle 7 on the same height of many stands 1 that the in bank set up with cable 3 in proper order, and wear to establish multirow cable 3 according to buckle 7's setting on stand 1, buckle 7 on the same height on a plurality of stands 1 can be located to same root cable 3, and support cable 3's height under buckle 7's effect, design multirow cable 3 according to actual need, the row number of cable 3 sets up according to stand 1's height and actual need.
Step D: and installing the clamp 4, sleeving the clamp 4 on the cable 3 while the cable 3 is threaded on the buckle 7, wherein the position of the clamp 4 can slide along the length direction of the cable 3.
Step E: installing a metal connecting plate 6, moving the hoop 4 to a certain position, enabling the hoops 4 on the rows of cables 3 to be located on the same vertical line, inserting the joints 4-3 of the hoop 4 into the reserved holes 6-1 of the metal connecting plate 6, and connecting the joints 4-3 of the hoop 4 through bolts 4-1.
Under the effect of metal connecting plate 6, be connected metal connecting plate 6 and cable 3 and form the integral type structure to set up metal connecting plate 6 aerial, do not influence the atress of cable 3 and warp.
Step F: and installing a connecting piece 5, installing the connecting piece 5 at the joint of the cable 3 and the hoop 4, and installing the rubber buffer layer 2 on the connecting piece 5.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the terms of the upright post 1, the rubber buffer layer 2, the cable 3, the hoop 4, the bolt 4-1, the hoop head 4-2, the joint 4-3, the connecting piece 5, the metal connecting plate 6, the reserved hole 6-1, the buckle 7 and the like do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. An improved integral flexible guardrail capable of dissipating energy comprises a plurality of upright posts (1) arranged in rows and a plurality of rows of cables (3) arranged on the upright posts (1) at different horizontal heights; the device is characterized in that metal connecting plates (6) which are simultaneously connected with a plurality of rows of cables (3) are arranged on the cables (3), the metal connecting plates (6) are arranged on the plurality of rows of cables (3) in an overhead manner, and the metal connecting plates (6) are arranged in rows along the arrangement direction of a plurality of upright posts (1); a plurality of hoops (4) connected with the cables (3) are arranged on the metal connecting plate (6), and the hoops (4) correspond to the rows of cables (3) one by one; the metal connecting plate (6) is also provided with a connecting piece (5), and the connecting piece (5) is provided with a rubber buffer layer (2); the rubber buffer layer (2) and the metal connecting plate (6) are arranged on two opposite sides of the cable (3).
2. The energy-dissipating improved integral flexible guardrail according to claim 1, wherein the columns (1) and the metal connecting plates (6) are vertically arranged, a plurality of preformed holes (6-1) are formed in the metal connecting plates (6) and are arranged along the height direction of the metal connecting plates (6), the preformed holes (6-1) correspond to the clamping bands (4) in a one-to-one mode, and the clamping bands (4) are inserted into the corresponding preformed holes (6-1).
3. An improved integral flexible fence capable of dissipating energy as claimed in claim 2 wherein the hoop (4) comprises a hoop head (4-2) and a connector (4-3) connected together, the cable (3) is inserted into the hoop head (4-2), the connector (4-3) is inserted into the reserved hole (6-1), the connector (4-3) is connected with a bolt (4-1), and the bolt (4-1) and the hoop head (4-2) are located on two opposite sides of the metal connecting plate (6).
4. An improved one-piece flexible guardrail able to dissipate energy according to claim 3, characterized in that the length of the bolts (4-1) is greater than the diameter of the prepared holes (6-1).
5. An improved integral flexible guardrail with energy dissipation function as claimed in claim 1, characterized in that the connecting pieces (5) are S-shaped hooks, the top of the S-shaped hooks are hung between the metal connecting plate (6) and the cable (3), and the bottom of the S-shaped hooks are hung with the rubber buffer layer (2).
6. An improved integral flexible guardrail with energy dissipation according to claim 1, characterized in that the connecting piece (5) is a metal binding band which binds the rubber cushioning layer (2), the metal connecting plate (6) and the cable (3) at the same time.
7. An improved one-piece flexible guardrail capable of dissipating energy as claimed in claim 1, characterized in that the rubber buffer layer (2) is a waste tire.
8. An improved one-piece flexible guard rail capable of dissipating energy according to claim 1, characterized in that the uprights (1) are provided with snap-in clips (7) connected to the cables (3).
9. An installation method of an improved integral flexible guardrail capable of dissipating energy is characterized by comprising the following steps:
step A: prefabricating the upright post (1) and the metal connecting plate (6) in a factory and transporting to the site;
and B: the upright post (1) is fixed, and the upright post (1) is directly driven into the corresponding position of the ground through a pile driver;
and C: installing cables (3), sequentially penetrating the cables (3) through buckles (7) arranged in rows on a plurality of upright posts (1) at the same height, and penetrating a plurality of rows of cables (3) according to the arrangement of the buckles (7) on the upright posts (1);
step D: the hoop (4) is installed, and the hoop (4) is sleeved on the cable (3) when the cable (3) is connected to the buckle (7) in a penetrating mode;
step E: installing a metal connecting plate (6), moving the hoop (4) to a certain position, enabling the hoops (4) on the multiple rows of cables (3) to be located on the same vertical line, inserting joints (4-3) of the hoops (4) into reserved holes (6-1) of the metal connecting plate (6), and connecting the joints (4-3) of the hoops (4) through bolts (4-1);
step F: and installing a connecting piece (5), installing the connecting piece (5) at the joint of the cable (3) and the hoop (4), and installing a rubber buffer layer (2) on the connecting piece (5).
10. An improved method of installing an integral flexible barrier which dissipates energy as defined in claim 9 wherein said connecting elements (5) are S-hooks or metal ties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210580709.8A CN114855675A (en) | 2022-05-26 | 2022-05-26 | Improved integral flexible guardrail capable of dissipating energy and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210580709.8A CN114855675A (en) | 2022-05-26 | 2022-05-26 | Improved integral flexible guardrail capable of dissipating energy and installation method thereof |
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| Publication Number | Publication Date |
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| CN114855675A true CN114855675A (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210580709.8A Pending CN114855675A (en) | 2022-05-26 | 2022-05-26 | Improved integral flexible guardrail capable of dissipating energy and installation method thereof |
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| Country | Link |
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| CN (1) | CN114855675A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0321757D0 (en) * | 2003-09-17 | 2003-10-15 | Hill & Smith Holdings Plc | Road safety barriers |
| CN101768931A (en) * | 2010-01-21 | 2010-07-07 | 北京中交华安科技有限公司 | Road guard rail and building method thereof |
| CN207974621U (en) * | 2018-03-06 | 2018-10-16 | 桂建华 | Novel municipal administration gardens cable guardrail |
| CN210086289U (en) * | 2019-03-07 | 2020-02-18 | 浙江交工集团股份有限公司 | Reinforced embankment earth retaining member capable of greening |
| CN217352258U (en) * | 2022-05-26 | 2022-09-02 | 浙江交工集团股份有限公司 | Integral flexible guardrail of improved generation that can dissipate energy |
-
2022
- 2022-05-26 CN CN202210580709.8A patent/CN114855675A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0321757D0 (en) * | 2003-09-17 | 2003-10-15 | Hill & Smith Holdings Plc | Road safety barriers |
| CN101768931A (en) * | 2010-01-21 | 2010-07-07 | 北京中交华安科技有限公司 | Road guard rail and building method thereof |
| CN207974621U (en) * | 2018-03-06 | 2018-10-16 | 桂建华 | Novel municipal administration gardens cable guardrail |
| CN210086289U (en) * | 2019-03-07 | 2020-02-18 | 浙江交工集团股份有限公司 | Reinforced embankment earth retaining member capable of greening |
| CN217352258U (en) * | 2022-05-26 | 2022-09-02 | 浙江交工集团股份有限公司 | Integral flexible guardrail of improved generation that can dissipate energy |
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