CN109024381B - Energy-absorbing type highway safety anticollision barrier - Google Patents
Energy-absorbing type highway safety anticollision barrier Download PDFInfo
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- CN109024381B CN109024381B CN201810923491.5A CN201810923491A CN109024381B CN 109024381 B CN109024381 B CN 109024381B CN 201810923491 A CN201810923491 A CN 201810923491A CN 109024381 B CN109024381 B CN 109024381B
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- guardrail
- sliding
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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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0407—Metal rails
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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
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
- E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to the technical field of highways, in particular to an energy-absorbing type highway safety anti-collision guardrail which comprises a base, wherein support columns are symmetrically arranged at the upper end of the base, a rotating shaft is inserted at the upper end of each support column, an upright post is hinged to the outer side of the rotating shaft, a fixing rod is arranged at the lower part of one side of the outer wall of each upright post, sliding grooves are respectively formed in the opposite sides of the two upright posts, a guardrail frame is slidably connected inside each sliding groove, pull rings are respectively and fixedly connected to the upper end and the lower end of the guardrail frame, and a guardrail body is arranged inside the guardrail frame. The guardrail device is novel in structure, convenient to use, good in protection performance when an accident occurs, capable of effectively absorbing the impact force of the automobile, greatly reducing the reaction force on the automobile, reducing the damage caused by the accident, meanwhile, capable of avoiding the damage on the whole guardrail, prolonging the service life of the device, high in practicability and worthy of popularization.
Description
Technical Field
The invention relates to the technical field of highways, in particular to an energy-absorbing type highway safety anti-collision guardrail.
Background
The highway guardrail is generally a blocking facility arranged parallel to a road, and mainly has the main functions of preventing traffic accidents that vehicles cross the road or run into opposite lanes through a central separation belt due to driver errors or abnormal driving caused by other reasons, protecting the safety of drivers and passengers on the vehicles, and simultaneously having the functions of inducing the sight of the drivers, increasing the driving safety and beautifying the highway environment. It is statistically estimated that there are about 250 hits to the center fence every 200 meters of highway per year, which is 3 times as many as other types of traffic accidents on the highway.
Most of the conventional safety protective guards for the expressway are made of steel or cement, the structural design is simple, the safety protective guards are only in the shape of stand columns connected with cross rods, after an automobile collides with the protective guards, the automobile is subjected to rigid impact and no buffering force, the automobile can be subjected to very strong reaction force, great threats are easily caused to personnel on the automobile, the protective guards can be damaged, potential safety hazards are caused, and the service life is short. Therefore, an energy-absorbing type highway safety anti-collision guardrail is provided to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an energy-absorbing type highway safety anti-collision guardrail.
In order to achieve the purpose, the invention adopts the following technical scheme:
the design is an energy-absorbing type highway safety anti-collision guardrail, which comprises a base, the upper end symmetry of base is equipped with the support column, peg graft and have the pivot in the upper end of support column, the outside of pivot articulates there is the stand, outer wall one side lower part of stand is equipped with the dead lever, two the spout has been seted up respectively to one side that the stand is relative, the inside sliding connection of spout has the guardrail frame, the upper end and the lower extreme of guardrail frame fixedly connected with pull ring respectively, just the inside of guardrail frame is equipped with the fence body.
Preferably, the top end of the upright post is provided with a reflector, and the outer surface of the upright post is coated with a fluorescent layer.
Preferably, the outer wall both sides of guardrail frame symmetry respectively hinge has the head rod, T type spout has been seted up to the inner wall one side symmetry of spout, the inside sliding connection of T type spout has T type slider, the outside of T type slider is articulated with the head rod through the round pin axle, the inner chamber both sides of T type spout are equipped with spring coil and damping buffer respectively, just one side that spring coil and damping buffer are relative respectively with T type slider fixed connection, the middle part of the inner wall one side of spout is equipped with the framework, the inside of framework is pegged graft and is had the buffer beam, be equipped with the buffering gasbag between the left side of buffer beam and the inner wall of framework, the right side of buffer beam is connected with guardrail frame.
Preferably, the dead slot has been seted up at the middle part of stand, the upper portion and the lower part of dead slot communicate respectively has the connecting pipe, just be equipped with ooff valve on the connecting pipe, the inside sliding connection of dead slot has two piston plates, two one side that the piston plate is relative is connected with first magnet and second magnet respectively, first magnet and second magnet are strong magnet and inter attraction, two one side in opposite directions of piston plate is connected with first elasticity rope respectively, the one end that the piston plate was kept away from to first elasticity rope runs through the dead slot and is connected with the pull ring, just first elasticity rope is equipped with the sealing washer with the dead slot junction, the first logical groove of using with the cooperation of first elasticity rope is seted up respectively at the upper and lower both ends of dead slot.
Preferably, the sliding tray has been seted up to the upper end symmetry of base, the inside of sliding tray is connected with the sliding block through buffer spring, the upper portion of sliding block articulates through the round pin axle has the second connecting rod, the upper end of second connecting rod is articulated through round pin axle and stand.
Preferably, the mounting groove has been seted up to the inside of base, the inside level of mounting groove is equipped with the axis body, the axle sleeve has been cup jointed in the outside of axis body, be connected with the spring housing between the inner wall of axle sleeve and sliding tray, just the spring housing cup joints in the outside of axis body, outer wall one side upper portion of axle sleeve is connected with the second elasticity rope, the one end that the axle sleeve was kept away from to the second elasticity rope runs through the sliding tray and is connected with the dead lever, just the second logical groove that uses with the cooperation of second elasticity rope is seted up to the upper end of sliding tray.
Preferably, the fence body is including the first elastic plate with guardrail frame fixed connection, the outside of first elastic plate is equipped with arc buffering strip, the outside of arc buffering strip is connected with the second elastic plate, the outside of second elastic plate evenly is equipped with the buffering spheroid, the upper and lower both ends of first elastic plate and second elastic plate all are connected with the closing plate jointly, just closing plate and first elastic plate and second elastic plate sliding connection.
Preferably, the fixed slot has been seted up at the left side middle part of base, the right side middle part of base be connected with fixed slot assorted fixed block, the upper end both sides of base are equipped with the connecting piece respectively, the bolt hole has been seted up at the middle part of connecting piece.
The energy-absorbing type highway safety anti-collision guardrail provided by the invention has the beneficial effects that:
(1) when the guardrail is collided by an automobile, the arc-shaped buffer strip and the buffer ball body arranged in the guardrail body can absorb a part of impact force to play a first heavy buffer role, the guardrail can drive the guardrail frame to move, so that the first connecting rod rotates to drive the T-shaped sliding block to move in the T-shaped sliding groove, so that the spring ring is stretched and extrudes the damping buffer, the buffer rod can extrude the buffering air bag, the second heavy buffer role can be played through the spring ring, the damping buffer and the buffering air bag, the two piston plates are pulled to be away from each other when the guardrail frame moves, a third heavy buffer role can be played by utilizing the attraction force between the first magnet and the second magnet, inert gas can be filled into a cavity formed by the piston plates and the empty groove through the connecting pipe, and the compressed gas can increase the pressure intensity when the piston plates move, utilize high-pressure gas can cushion the impact of vehicle, play the fourth heavy cushioning effect, greatly reduced the reaction force that the car received, reduce people injured's probability.
(2) When the automobile impact force is too large, the stand column can rotate backwards to topple, so that the second connecting rod drives the sliding block to extrude the buffer spring, meanwhile, the second elastic rope can be pulled through the fixed rod, the shaft sleeve slides on the shaft body and extrudes the spring sleeve, the buffer effect of the buffer spring and the spring sleeve is utilized, the whole device can be well protected, the device damage caused by huge impact force is avoided, and the service life of the device is prolonged.
(3) The invention has the advantages of novel structure, convenient use, good protection performance when an accident occurs, great practicability and popularization value, and can greatly reduce the harm caused by the accident.
Drawings
FIG. 1 is a schematic structural view of an energy-absorbing type highway safety crash barrier according to the present invention;
FIG. 2 is an enlarged schematic view of the structure of the part A of the energy-absorbing type highway safety crash barrier provided by the invention;
FIG. 3 is a schematic structural view of a middle column and a guardrail frame of an energy-absorbing type highway safety anti-collision guardrail provided by the invention;
FIG. 4 is a side view of an energy absorbing type highway crash barrier in accordance with the present invention;
FIG. 5 is a schematic structural view of a rail body of an energy-absorbing type highway crash barrier according to the present invention.
In the figure: the damping device comprises a base 1, a support column 2, a rotating shaft 3, a stand column 4, a sliding groove 5, a guardrail frame 6, a guardrail body 7, a first elastic plate 71, a second elastic plate 72, an arc-shaped buffer strip 73, a sealing plate 74, a buffer ball 75, a first connecting rod 8, a T-shaped sliding groove 9, a T-shaped sliding block 10, a spring ring 11, a damping buffer 12, a frame body 13, a buffer air bag 14, a buffer rod 15, a hollow groove 16, a piston plate 17, a first magnet 18, a second magnet 19, a first elastic rope 20, a connecting pipe 21, a switch valve 22, a sealing ring 23, a first through groove 24, a pull ring 25, a reflector 26, a fixed groove 27, a fixed block 28, a connecting piece 29, a second connecting rod 30, a sliding groove 31, a sliding block 32, a buffer spring 33, a mounting groove 34, a shaft sleeve 35, a shaft body 36, a spring sleeve 37, a bolt hole 38, a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an energy-absorbing type highway safety anti-collision guardrail comprises a base 1, a fixing groove 27 is formed in the middle of the left side of the base 1, a fixing block 28 matched with the fixing groove 27 is connected to the middle of the right side of the base 1, connecting pieces 29 are respectively arranged on two sides of the upper end of the base 1, bolt holes 38 are formed in the middle of the connecting pieces 29, through the fixing groove 27 and the fixing block 28, connection between two adjacent bases 1 can be more stable, and through the cooperation of the connecting pieces 29, the bolt holes 38 and bolts, the bases 1 can be conveniently connected and fixed, and operation is convenient.
Sliding tray 31 has been seted up to base 1's upper end symmetry, sliding tray 31's inside is connected with sliding block 32 through buffer spring 33, sliding block 32's upper portion articulates through the round pin axle has second connecting rod 30, second connecting rod 30's upper end is articulated through round pin axle and stand 4, when the car impact that the device received is too big, stand 4 can rotate backward and empty, make second connecting rod 30 drive sliding block 32 extrusion buffer spring 33, the elasticity that utilizes buffer spring 33 can play the effect of protection stand 4.
Mounting groove 34 has been seted up to base 1's inside, the inside level of mounting groove 34 is equipped with axis body 36, axle sleeve 35 has been cup jointed in the outside of axis body 36, be connected with spring housing 37 between axle sleeve 35 and sliding tray 31's the inner wall, and spring housing 37 cup joints in the outside of axis body 36, outer wall one side upper portion of axle sleeve 35 is connected with second elastic rope 40, the one end that axle sleeve 35 was kept away from to second elastic rope 40 runs through sliding tray 31 and is connected with dead lever 41, and second logical groove 39 that uses with the cooperation of second elastic rope 40 is seted up to sliding tray 31's upper end, when stand 4 can rotate backward and empty, can stimulate second elastic rope 40 through dead lever 41, make axle sleeve 35 slide at axis body 36, and extrude spring housing 37, utilize spring housing 37's cushioning effect, the protection device that can be fine is whole, avoid huge impact force to cause the device to damage.
The upper end symmetry of base 1 is equipped with support column 2, and it has pivot 3 to peg graft in the upper end of support column 2, and the outside of pivot 3 articulates there is stand 4, and the top of stand 4 is equipped with reflector 26, and the fluorescent layer has been paintd on stand 4's surface, and when the car light shines night, reflector 26 and fluorescent layer can reflect light, improve the warning effect, reduce the probability of collision accident.
A fixing rod 41 is arranged at the lower part of one side of the outer wall of the upright post 4, a hollow groove 16 is arranged at the middle part of the upright post 4, the upper part and the lower part of the hollow groove 16 are respectively communicated with a connecting pipe 21, a switch valve 22 is arranged on the connecting pipe 21, after the switch valve 22 is opened, inert gas can be filled into a cavity formed by the piston plate 17 and the hollow groove 16 through the connecting pipe 21, two piston plates 17 are connected in the hollow groove 16 in a sliding manner, one opposite sides of the two piston plates 17 are respectively connected with a first magnet 18 and a second magnet 19, the first magnet 18 and the second magnet 19 are both strong magnets and attract each other, one opposite sides of the two piston plates 17 are respectively connected with a first elastic rope 20, one end of the first elastic rope 20, which is far away from the piston plates 17, penetrates through the hollow groove 16 to be connected with a pull ring 25, a sealing ring 23 is arranged at the joint of the first elastic rope 20 and the hollow groove 16, first through, when the device receives the car collision and makes guardrail frame 6 remove, can make two piston plates 17 of first elasticity rope 20 pulling keep away from each other, utilize the appeal between first magnet 18 and the second magnet 19, can play good cushioning effect, when piston plate 17 removes to both sides, can compress inert gas increase pressure, utilize high-pressure gas can cushion the impact of vehicle, reinforcing cushioning effect, greatly reduced the reaction force that the car received, reduce people's injured probability.
The opposite sides of the two upright posts 4 are respectively provided with a chute 5, the inside of the chute 5 is connected with a guardrail frame 6 in a sliding way, the two sides of the outer wall of the guardrail frame 6 are respectively hinged with a first connecting rod 8 in a symmetrical way, one side of the inner wall of the chute 5 is symmetrically provided with a T-shaped chute 9 in a symmetrical way, the inside of the T-shaped chute 9 is connected with a T-shaped slider 10 in a sliding way, the outer side of the T-shaped slider 10 is hinged with the first connecting rod 8 through a pin shaft, the two sides of the inner cavity of the T-shaped chute 9 are respectively provided with a spring ring 11 and a damping buffer 12, the opposite sides of the spring ring 11 and the damping buffer 12 are respectively fixedly connected with the T-shaped slider 10, the middle part of one side of the inner wall of the chute 5 is provided with a frame body 13, the inside of the frame body 13 is inserted with a buffer rod 15, a buffer air bag 14 is arranged between, make the head rod 8 rotate to drive T type slider 10 and remove in the inside of T type spout 9, make spring coil 11 stretched and extrude damping buffer 12, buffer rod 15 can extrude buffering gasbag 14 simultaneously, can play good heavy cushioning effect through spring coil 11, damping buffer 12 and buffering gasbag 14, absorb most impact, avoid the car to receive powerful reaction force.
The upper end and the lower extreme of guardrail frame 6 are fixedly connected with pull ring 25 respectively, and the inside of guardrail frame 6 is equipped with the fence body 7, fence body 7 is including the first elastic plate 71 with guardrail frame 6 fixed connection, the outside of first elastic plate 71 is equipped with arc buffering strip 73, the outside of arc buffering strip 73 is connected with second elastic plate 72, the outside of second elastic plate 72 evenly is equipped with buffering spheroid 75, the upper and lower both ends of first elastic plate 71 and second elastic plate 72 all are connected with closing plate 74 jointly, and closing plate 74 and first elastic plate 71 and second elastic plate 72 sliding connection, when the device receives the striking, arc buffering strip 73 and the buffering spheroid 75 that set up in fence body 7, can absorb partly impact at first, play first heavy cushioning effect.
The working principle is as follows: when the automobile is collided, the arc-shaped buffer strip 73 and the buffer ball 75 arranged in the rail body 7 can absorb a part of impact force to play a first heavy buffer role, the rail body 7 can drive the rail frame 6 to move, so that the first connecting rod 8 rotates to drive the T-shaped slide block 10 to move in the T-shaped sliding groove 9, so that the spring ring 11 is stretched and extrudes the damping buffer 12, the buffer rod 15 can extrude the buffer air bag 14, a second heavy buffer role can be played through the spring ring 11, the damping buffer 12 and the buffer air bag 14, the rail frame 6 can move, so that the first elastic rope 20 can pull the two piston plates 17 to be away from each other, a third heavy buffer role can be played through the attractive force between the first magnet 18 and the second magnet 19, inert gas can be filled into a cavity formed by the piston plates 17 and the hollow groove 16 through the connecting pipe 21, can compressed gas increase pressure when piston plate 17 removes, utilize high-pressure gas to cushion the impact of vehicle, play the fourth heavy cushioning effect, greatly reduced the reaction force that the car received, reduce people's injured probability, when the car impact is too big, stand 4 can rotate backward and empty, make second connecting rod 30 drive sliding block 32 extrusion buffer spring 33, can pass through dead lever 41 pulling second elasticity rope 40 simultaneously, make axle sleeve 35 slide at axis body 36, and extrude spring housing 37, utilize buffer spring 33 and spring housing 37's cushioning effect, protection device that can be fine is whole, avoid huge impact force to cause the device to damage, improve the life of device.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The energy-absorbing type highway safety anti-collision guardrail comprises a base (1) and is characterized in that supporting columns (2) are symmetrically arranged at the upper end of the base (1), a rotating shaft (3) is inserted at the upper end of each supporting column (2), a stand column (4) is hinged to the outer side of each rotating shaft (3), a fixing rod (41) is arranged at the lower part of one side of the outer wall of each stand column (4), sliding grooves (5) are respectively formed in one opposite sides of the two stand columns (4), a guardrail frame (6) is connected to the inside of each sliding groove (5) in a sliding mode, pull rings (25) are respectively fixedly connected to the upper end and the lower end of each guardrail frame (6), and a guardrail body (7) is arranged inside each guardrail frame (6; the middle part of the upright post (4) is provided with an empty groove (16), the upper part and the lower part of the empty groove (16) are respectively communicated with a connecting pipe (21), a switch valve (22) is arranged on the connecting pipe (21), two piston plates (17) are connected in the hollow groove (16) in a sliding manner, one opposite sides of the two piston plates (17) are respectively connected with a first magnet (18) and a second magnet (19), the first magnet (18) and the second magnet (19) are both strong magnets and attract each other, one opposite sides of the two piston plates (17) are respectively connected with a first elastic rope (20), one end of the first elastic rope (20) far away from the piston plate (17) penetrates through the empty groove (16) and is connected with the pull ring (25), and a sealing ring (23) is arranged at the joint of the first elastic rope (20) and the empty groove (16), the upper end and the lower end of the empty groove (16) are respectively provided with a first through groove (24) matched with the first elastic rope (20); mounting groove (34) have been seted up to the inside of base (1), the inside level of mounting groove (34) is equipped with axis body (36), axle sleeve (35) have been cup jointed in the outside of axis body (36), be connected with spring housing (37) between the inner wall of axle sleeve (35) and sliding tray (31), just spring housing (37) cup joint in the outside of axis body (36), outer wall one side upper portion of axle sleeve (35) is connected with second elasticity rope (40), the one end that axle sleeve (35) were kept away from in second elasticity rope (40) runs through sliding tray (31) and is connected with dead lever (41), just the logical groove (39) of second that uses with the cooperation of second elasticity rope (40) is seted up to the upper end of sliding tray (31).
2. The energy-absorbing type highway crash barrier according to claim 1, wherein the top end of the upright post (4) is provided with a reflector (26), and the outer surface of the upright post (4) is coated with a fluorescent layer.
3. The energy-absorbing type highway safety anti-collision guardrail according to claim 1, characterized in that two sides of the outer wall of the guardrail frame (6) are symmetrically hinged with first connecting rods (8) respectively, one side of the inner wall of the chute (5) is symmetrically provided with a T-shaped chute (9), the inside of the T-shaped chute (9) is connected with a T-shaped sliding block (10) in a sliding manner, the outer side of the T-shaped sliding block (10) is hinged with the first connecting rods (8) through pin shafts, two sides of the inner cavity of the T-shaped chute (9) are respectively provided with a spring ring (11) and a damping buffer (12), one sides of the spring ring (11) and the damping buffer (12) opposite to each other are respectively fixedly connected with the T-shaped sliding block (10), the middle part of one side of the inner wall of the chute (5) is provided with a frame body (13), the inside of the frame body (13) is provided with a splicing buffer rod (15), and a buffer air bag (14) is arranged between, the right side of the buffer rod (15) is connected with the guardrail frame (6).
4. The energy-absorbing type highway safety anti-collision guardrail according to claim 1, characterized in that the upper end of the base (1) is symmetrically provided with sliding grooves (31), the inside of the sliding grooves (31) is connected with sliding blocks (32) through buffer springs (33), the upper parts of the sliding blocks (32) are hinged to second connecting rods (30) through pin shafts, and the upper ends of the second connecting rods (30) are hinged to the upright posts (4) through pin shafts.
5. The energy-absorbing type highway safety anti-collision guardrail according to claim 1, characterized in that the guardrail body (7) comprises a first elastic plate (71) fixedly connected with the guardrail frame (6), an arc-shaped buffering strip (73) is arranged on the outer side of the first elastic plate (71), a second elastic plate (72) is connected on the outer side of the arc-shaped buffering strip (73), buffering balls (75) are uniformly arranged on the outer side of the second elastic plate (72), the upper end and the lower end of the first elastic plate (71) and the upper end and the lower end of the second elastic plate (72) are both connected with sealing plates (74), and the sealing plates (74) are in sliding connection with the first elastic plate (71) and the second elastic plate (72).
6. The energy-absorbing type highway safety anti-collision guardrail according to claim 1, characterized in that a fixing groove (27) is formed in the middle of the left side of the base (1), a fixing block (28) matched with the fixing groove (27) is connected to the middle of the right side of the base (1), connecting pieces (29) are respectively arranged on two sides of the upper end of the base (1), and bolt holes (38) are formed in the middle of the connecting pieces (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810923491.5A CN109024381B (en) | 2018-08-11 | 2018-08-11 | Energy-absorbing type highway safety anticollision barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810923491.5A CN109024381B (en) | 2018-08-11 | 2018-08-11 | Energy-absorbing type highway safety anticollision barrier |
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| Publication Number | Publication Date |
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| CN109024381A CN109024381A (en) | 2018-12-18 |
| CN109024381B true CN109024381B (en) | 2020-11-17 |
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| CN201810923491.5A Active CN109024381B (en) | 2018-08-11 | 2018-08-11 | Energy-absorbing type highway safety anticollision barrier |
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| CN115233597B (en) * | 2022-08-19 | 2023-09-29 | 安徽华骅桥梁设备制造有限公司 | Safe energy-absorbing reduces highway guardrail of turning on one's side |
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| CN109024381A (en) | 2018-12-18 |
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