CN117344665A

CN117344665A - Highway safety isolation guardrail

Info

Publication number: CN117344665A
Application number: CN202311112744.8A
Authority: CN
Inventors: 田丰; 李鹏; 刘文超
Original assignee: Shandong Hi Speed Co Ltd
Current assignee: Shandong Hi Speed Co Ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-01-05

Abstract

The invention discloses a highway safety isolation guardrail, which relates to the technical field of isolation guardrails and consists of a plurality of guardrail units in a spliced mode, wherein each guardrail unit comprises three upright posts which are distributed side by side, one side, close to a highway, of each upright post is provided with a corrugated steel guardrail plate, one side, close to the highway, of each corrugated steel guardrail plate is provided with an energy absorption part, each energy absorption part is of a cavity structure, liquid is stored in each cavity, the other side of each corrugated steel guardrail plate is provided with a movement mechanism, the movement mechanism is communicated with an inner cavity of each energy absorption part, and one side, close to the highway, of each corrugated steel guardrail plate is hinged with a plurality of light reflecting parts. According to the invention, the upright post in front of the arc-shaped area is driven to move towards the direction deviating from the highway by the movement mechanism, so that the steering angle of the vehicle after collision is reduced, and the reflecting part behind the arc-shaped area is driven to rotate towards the direction approaching the highway, so that warning is provided for a driver behind the vehicle in advance, and the probability of secondary accidents of the accident vehicle is reduced.

Description

Highway safety isolation guardrail

Technical Field

The invention relates to the technical field of isolation guardrails, in particular to a highway safety isolation guardrail.

Background

The highway guardrail is a continuous semi-rigid guardrail system and consists of corrugated steel guardrail plates and main posts. The main function of the vehicle protection device is to effectively limit the vehicle in the road when the vehicle accident happens, and prevent the vehicle from rushing out of the road. The guardrail has the characteristics of continuity protection, crashworthiness, energy absorption and the like, and can protect the personal safety of drivers and passengers.

When the vehicle hits the isolation guardrail, the impacted area can outwards sink to form an arc-shaped concave area, the kinetic energy of the vehicle can lead the vehicle to continuously slide along the arc-shaped area to form a steering action, if the length of the arc-shaped area is very short, the vehicle needs to complete the process from the original driving direction to steering in a short distance, the vehicle can generate a larger steering angle, the rollover risk of the vehicle is increased, and the lateral inertia force generated when the vehicle drives at a high speed can be difficult to be smoothly consumed, so that the vehicle is easy to lose balance and rollover occurs. In addition, the reflective member on the impacted area can move in a direction away from the road after collision, so that effective reflection cannot be formed, and a driver is influenced to perceive a front accident in advance. The above problems may increase the severity of accidents and reduce the safety of drivers, and based on this, the present invention proposes a highway safety isolation barrier.

Disclosure of Invention

The invention aims to provide a highway safety isolation guardrail for solving the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the highway safety isolation guardrail is formed by splicing a plurality of guardrail units, each guardrail unit comprises three upright posts which are distributed side by side, a corrugated steel guardrail plate is commonly installed on one side of each upright post, which is close to a highway, of each corrugated steel guardrail plate, an energy absorption part is installed on one side, which is close to the highway, of each corrugated steel guardrail plate, each energy absorption part is of a cavity structure, liquid is stored in each cavity, a movement mechanism is installed on the other side of each corrugated steel guardrail plate, the movement mechanism is communicated with an inner cavity of each energy absorption part, and a plurality of reflecting parts are hinged on one side, which is close to the highway, of each corrugated steel guardrail plate; the movement mechanism uses liquid as a conduction medium, drives the upright post in front of the collision area to do linear movement towards the direction deviating from the road in advance, and simultaneously drives the reflecting component behind the collision area to rotate towards the direction approaching the road, wherein the reference direction of the reflecting component during movement is the direction taking the normal running direction of the vehicle as the front and the direction deviating from the normal running direction of the vehicle as the back.

Preferably, the energy-absorbing component comprises two installation frames which are vertically symmetrically arranged, the installation frames are fixedly installed on the corrugated steel guardrail plate, a rubber roller is installed between the two installation frames, the rubber roller is of a cavity structure, and the cavity is communicated with a first connecting pipe.

Preferably, the rubber roller is internally provided with a first cavity and a second cavity from outside to inside in sequence, gas is stored in the first cavity, liquid is stored in the second cavity, and the second cavity is communicated with the first connecting pipe.

Preferably, a rotating shaft is movably arranged between the two mounting frames which are vertically symmetrical, and the rubber roller is fixedly sleeved on the rotating shaft.

Preferably, the lower extreme of stand installs the installation piece, and the both sides of installation piece perpendicular to highway are provided with first base and second base respectively, and fixed mounting has two guide bars between first base and the second base, and the guide bar activity runs through the installation piece.

Preferably, the movement mechanism comprises a first main pipe connected with all second connecting pipes, the first main pipe is fixedly arranged on a corrugated steel guardrail plate, third connecting pipes matched with the number of the stand columns are connected on the corrugated steel guardrail plate, the movement mechanism also comprises a shell arranged in the second base, the inner cavity of the shell is slidably connected with a second piston, one end of the second piston is provided with a second push rod, and the second push rod movably penetrates through the shell and is fixedly connected with the mounting block; the other end of the second piston is provided with a second spring; the inner cavity of the shell is of a structure with thick middle and thin two ends, the second piston is slidably assembled in a thicker middle area, the second piston divides the inner cavity of the shell into two independent closed spaces of a third cavity and a fourth cavity, the fourth cavity is communicated with and provided with a second interface, and the other end of the second interface is connected with a third connecting pipe.

Preferably, the first main pipe is connected with a forward check valve in series, and the flow direction of the forward check valve is consistent with the normal driving direction of the vehicle.

Preferably, the light reflecting component comprises a trapezoid block hinged on the corrugated steel guardrail plate, the trapezoid block is of an isosceles trapezoid structure, the end face of the trapezoid block, which is far away from the corrugated steel guardrail plate, is adhered with a light reflecting film, and the end face of the trapezoid block, which is close to the corrugated steel guardrail plate, is provided with a horizontally arranged chute; the corrugated steel guardrail plate is characterized by further comprising a fixed sleeve fixedly inserted on the corrugated steel guardrail plate, wherein the inner cavity of the fixed sleeve is slidably connected with a first piston, one end of the first piston is provided with a first push rod, the other end of the first push rod movably penetrates through the fixed sleeve and is slidably connected with the sliding groove, the circumferential surface of the first push rod is sleeved with a first spring, and the first spring is positioned in the inner cavity of the fixed sleeve.

Preferably, all the fixed sleeves are communicated with a second main pipe through pipelines, and fourth connecting pipes matched with the upright posts in number are connected on the second main pipe in series; the third chamber is filled with liquid, the third chamber is provided with a first interface in a communicating way, and the other end of the first interface is communicated with a fourth connecting pipe.

Preferably, the second main pipe is connected with a reverse check valve in series, and the flow direction of the reverse check valve is consistent with the direction deviating from the normal driving direction.

Compared with the prior art, the invention has the following beneficial effects:

(1) According to the invention, the energy absorbing component absorbs acting force generated when a vehicle impacts the corrugated steel guardrail plate, and the liquid stored in the energy absorbing component is extruded into the movement mechanism, the movement mechanism uses the liquid as a conducting medium to drive the upright post in front of the collision area to do linear movement towards the direction deviating from the highway in advance, so that the arc area formed by collision extends and grows along the driving direction of the vehicle, the angle of the vehicle during steering is reduced, and the aim of reducing the side turning risk of the vehicle is achieved.

(2) After the isolation guardrail collides with the vehicle to form an arc-shaped area, the movement mechanism uses liquid as a conducting medium, the reflecting parts after driving the collision area rotate by a certain angle towards the direction close to the highway, the included angle between the reflecting parts and the driving direction of the vehicle is increased, the quantity of reflecting parts capable of reflecting light is increased when the vehicle lamp irradiates, the driver can observe the front accident in advance, meanwhile, the brightness of reflecting light is increased because of the increase of the quantity of reflecting parts, obvious brightness difference is caused, the driver is reminded of the accident that the vehicle collides with the guardrail can occur in front, the design is not only beneficial to the driver to make a reaction earlier, the driving safety is improved, but also clear visual warning is provided, and the risk of traffic accidents is reduced.

(3) After the occurrence of a vehicle collision isolation guardrail event, the light reflecting part in the arc-shaped area is driven to rotate outwards through the movement mechanism, so that the contact probability of the light reflecting part in the arc-shaped area and light can be improved to a certain extent, the light reflecting part in the collision area can reflect light more fully with the light of an incoming vehicle through increasing the contact, the visual degree of the collision area is improved, a driver can observe the occurrence position of the collision event more easily, the driver can judge road conditions more accurately, corresponding avoidance and countermeasure measures are taken, and accordingly the safety and warning effect of traffic accident sites are improved.

(4) The liquid is used as a driving medium through the movement mechanism, the upright post before the arc-shaped area is driven to move towards the direction deviating from the highway, the steering angle after the collision of the vehicle is reduced, the probability of rollover of the accident vehicle is reduced, meanwhile, the reflective part after the arc-shaped area is driven to rotate towards the direction close to the highway, the reflective brightness and the reflective area length are increased, the warning can be provided for the driver of the vehicle coming from the rear in advance, the probability of subsequent collision is reduced, a stronger warning effect can be created at the accident place, the driver is guided to take avoidance measures, and the severity of the accident is further reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:

FIG. 1 is a schematic view of a guardrail unit according to an embodiment of the present invention;

FIG. 2 is a schematic view of a corrugated steel fence panel according to an embodiment of the present invention;

FIG. 3 is a schematic diagram showing a normal state of an isolation barrier formed by splicing three barrier units in an embodiment of the present invention;

FIG. 4 is a schematic view of an impact state of an isolation barrier formed by splicing three barrier units in an embodiment of the present invention;

FIG. 5 is a schematic view of a mounting structure of a column according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a second base according to an embodiment of the invention;

FIG. 7 is a schematic structural view of an energy absorber component in an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of an energy absorber component in accordance with an embodiment of the present invention;

FIG. 9 is a schematic view of the mounting structure of an energy absorber component and corrugated steel fence panel in an embodiment of the present invention;

FIG. 10 is a schematic view of a part of a motion mechanism according to an embodiment of the present invention;

FIG. 11 is a schematic view of a reflector according to an embodiment of the present invention;

fig. 12 is a schematic cross-sectional view of a fixing sleeve according to an embodiment of the invention.

In the figure: 1. a column; 11. a mounting block; 12. a first base; 13. a second base; 14. a guide rod; 15. a cushion pad;

2. corrugated steel guardrail plates; 21. a recessed portion; 22. a horizontal projection;

3. an energy absorbing component; 31. a mounting frame; 32. a rotation shaft; 33. a rubber roller; 34. a first cavity; 35. a second cavity; 36. a first connection pipe; 37. a second connection pipe;

4. a light reflecting member; 41. a trapezoid block; 42. a reflective film; 43. a chute; 44. fixing the sleeve; 45. a first piston; 46. a first push rod; 47. a first spring;

5. a movement mechanism; 51. a housing; 52. a second piston; 521. a third chamber; 522. a fourth chamber; 53. a second push rod; 54. a second spring; 55. a first interface; 56. a second interface; 57. a third connection pipe; 58. a first main pipe; 59. a forward check valve; 510. a fourth connection pipe; 512. a second main pipe; 513. a reverse check valve; 514. a first valve; 515. and a second valve.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.

Referring to fig. 1-12, the present embodiment provides a highway safety isolation guardrail, wherein a corrugated steel guardrail plate 2 is commonly installed on one side of a pillar 1 close to a highway (the guardrail unit is formed by splicing a plurality of guardrail units, each guardrail unit comprises three upright posts 1 distributed side by side, and one 1 is shared by one end, close to each other, of two adjacent corrugated steel guardrail plates 2 during splicing, the corrugated steel guardrail plate 2 is used for blocking a vehicle and changing the advancing direction of the vehicle, so that the vehicle is prevented from rushing out of the highway, and when the vehicle collides with the corrugated steel guardrail plate 2, deformation is generated and energy is absorbed during collision through the corrugated steel guardrail plate 2, so that the probability of crashing the vehicle is reduced, and a good protection effect is also provided for the vehicle and drivers. In practical application, the collision area in the corrugated steel guardrail plate 2 forms a small-section concave arc area towards the direction deviating from the highway, before the kinetic energy of the vehicle disappears, the vehicle can continuously collide with the corrugated steel guardrail plate 2 along the head direction until the vehicle breaks away from the isolation guardrail, but in the process, the length of the arc area is shorter, so that the vehicle is easy to turn over, therefore, the energy absorbing part 3 is arranged on one side of the corrugated steel guardrail plate 2 close to the highway, the energy absorbing part 3 is of a cavity structure, liquid is stored in the energy absorbing part 3, the other side of the corrugated steel guardrail plate 2 is provided with the moving mechanism 5, after the energy absorbing part 3 collides with the vehicle, the liquid stored in the energy absorbing part 3 enters the moving mechanism 5, the moving mechanism 5 uses the liquid as a conducting medium, the upright post 1 before the collision area is driven in advance to do linear motion towards the direction deviating from the highway, the length of the arc area formed by the vehicle is increased by taking the normal running direction of the vehicle as the front reference direction, and the turning angle of the vehicle is reduced, and the purpose of turning over probability of the vehicle is further reduced.

Specifically, the energy absorbing component 3 includes two mounting frames 31 that are upper and lower symmetrical arrangement, and mounting frame 31 fixed mounting is on corrugated steel guardrail board 2, installs rubber cylinder 33 between two mounting frames 31, and rubber cylinder 33 is cavity structure, and this cavity intercommunication has first connecting pipe 36, and its inside storage has liquid, and after the vehicle bumps with rubber cylinder 33, rubber cylinder 33 receives the extrusion, and the liquid of its storage flows into in the motion 5 through first connecting pipe 36.

On the basis of the scheme, as the concave part 21 and the horizontal convex part 22 are integrally formed on one side of the corrugated steel guardrail plate 2 close to a highway, in order to limit the offset distance of the rubber roller 33 after being impacted, the rubber roller 33 is arranged in the concave part 21, the shape of the rubber roller 33 is matched with that of the concave part 21, the displacement of the rubber roller 33 in the vertical direction is limited by the shape of the concave part 21, and the rubber roller 33 can absorb the energy generated during the impact to the maximum extent. Meanwhile, since the concave portion 21 wraps part of the rubber roller 33, the rubber roller 33 cannot be completely extruded, and the amount of liquid flowing out is reduced, so that the action of the rear moving mechanism 5 is affected. When collision occurs, the vehicle firstly extrudes the gas in the first cavity 34, the extruded gas can compress the space of the second cavity 35, and then the vehicle is matched to form double extrusion on the second cavity 35, so that liquid stored in the second cavity 35 is discharged, meanwhile, the first cavity 34 protects the second cavity 35, and the probability of breakage of the second cavity 35 when the second cavity 35 is impacted is reduced.

For better steering of the vehicle, the rubber roller 33 is mounted in a rotary manner, specifically: a rotating shaft 32 is movably arranged between the two mounting frames 31 which are vertically symmetrical, a rubber roller 33 is fixedly sleeved on the rotating shaft 32, and the rotation of the rubber roller 33 is used for assisting the steering of the vehicle.

Meanwhile, since each second cavity 35 needs to be communicated with the moving mechanism 5, in order to reduce the usage amount of the pipeline, the energy absorbing component 3 adopts an up-down symmetrical layout mode, and a second connecting pipe 37 is commonly connected between two upper and lower adjacent first connecting pipes 36, and the second connecting pipe 37 is communicated with the moving mechanism 5.

Before driving the upright 1 to move in the direction deviating from the highway through the movement mechanism 5, the installation mode of the upright 1 needs to be adaptively adjusted, specifically: the lower extreme of stand 1 is installed installation piece 11, and the both sides that installation piece 11 perpendicular to highway are provided with first base 12 and second base 13 respectively, and fixed mounting has two guide bars 14 between first base 12 and the second base 13, and guide bar 14 activity runs through installation piece 11. The stand 1 can move along the axial direction of the guide rod 14, after the corrugated steel guardrail plate 2 collides, the stand 1 can also move along the axial direction of the guide rod 14 away from the highway, and in order to reduce the impact force of the mounting block 11 on the second base 13, a buffer pad 15 is mounted on one side of the mounting block 11, which is close to the second base 13, and the buffer effect is achieved through the buffer pad 15. In order to improve the firmness of the upright 1, the first base 12 and the second base 13 are formed by concrete casting and extend into the highway subgrade.

The moving mechanism 5 comprises a first main pipe 58 connected with all the second connecting pipes 37, the first main pipe 58 is fixedly arranged on the corrugated steel guardrail plate 2, the corrugated steel guardrail plate 2 is connected with third connecting pipes 57 which are matched with the upright posts 1 in number, the moving mechanism also comprises a shell 51 arranged in the second base 13, the inner cavity of the shell 51 is slidingly connected with a second piston 52, one end of the second piston 52 is provided with a second push rod 53, and the second push rod 53 movably penetrates through the shell 51 and is fixedly connected with the mounting block 11; the other end of the second piston 52 is provided with a second spring 54, the second piston 52 is driven to move towards the direction approaching the road by the second spring 54, and when the second piston is impacted, part of impact force can be absorbed by deformation of the second spring 54; the inner cavity of the shell 51 is in a structure with thick middle and thin two ends, the second piston 52 is slidably assembled in a thick middle area, the second piston 52 divides the inner cavity of the shell 51 into two independent closed spaces of a third chamber 521 and a fourth chamber 522, the fourth chamber 522 is provided with a second interface 56 in a communicating manner, and the other end of the second interface 56 is connected with a third connecting pipe 57. The extruded liquid in the second cavity 35 flows into the fourth chamber 522 through the first connecting pipe 36, the second connecting pipe 37, the first main pipe 58 and the third connecting pipe 57 in sequence, and as the volume of the flowing liquid increases, the second piston 52 is driven to move towards the direction away from the road, and then the upright post 1 is driven to move towards the direction away from the road, and the upright post 1 drives the corrugated steel guardrail plate 2 fixedly connected with the upright post 1 to move towards the direction away from the road, so that the length of an arc-shaped area generated in the impact area increases.

Since the vehicle only moves along the direction of the vehicle head after the collision, in other words, the vehicle only moves towards one direction, if the flow direction of the liquid in the second cavity 35 is not controlled, the corrugated steel guardrail plates 2 at the two sides of the collision area are all moved, the length of the arc area is extended towards the two sides, so that the effective contact length of the vehicle and the arc area is reduced, the forward check valve 59 is connected in series on the first main pipe 58, the flow direction of the forward check valve 59 is consistent with the normal driving direction of the vehicle, the length of the arc area only extends towards the driving direction of the vehicle, and the steering angle of the vehicle is further reduced.

Because most expressways are not provided with street lamps, the light is darker, and accidents easily occur when vehicles run on roads and cannot see clearly the road conditions, the reflecting component 4 is arranged on the corrugated steel guardrail plate 2 at intervals on the expressways, the reflecting component mainly plays a role in improving the night light reflection, and specific reflected light is emitted in darkness to prompt drivers to pay attention to the road direction and distance of the vehicles. Because the reflecting components 4 in the prior art are all in a fixed installation mode, namely the installation angle of the reflecting components 4 is not changeable, the quantity of the reflecting components 4 which can generate light reflection when the vehicle lamp irradiates is certain, if a vehicle impacts a guardrail event occurs at a certain position in a highway, the reflecting components 4 installed in a normal straight line road section are fifty meters, the reflecting distance of the reflecting components 4 to the vehicle lamp can reach about one kilometer, but a driver can clearly see the road surface when the reflecting components 4 are about two hundred meters away, so that the driver can clearly see accident vehicles needing to be avoided in advance. It should be noted that, in order to avoid that the light reflection affects the sight of the driver, the rotation angle of the light reflection member 4 in this embodiment is not greater than five degrees.

Specifically, the light reflecting component 4 comprises a trapezoid block 41 hinged on the corrugated steel guardrail plate 2, the trapezoid block 41 is in an isosceles trapezoid structure, a light reflecting film 42 is adhered to the end surface of the trapezoid block 41 far away from the corrugated steel guardrail plate 2, and a horizontally arranged chute 43 is formed in the end surface of the trapezoid block 41 close to the corrugated steel guardrail plate 2; the corrugated steel guardrail plate comprises a corrugated steel guardrail plate 2, and is characterized by further comprising a fixed sleeve 44 fixedly inserted on the corrugated steel guardrail plate 2, wherein the inner cavity of the fixed sleeve 44 is slidably connected with a first piston 45, one end of the first piston 45 is provided with a first push rod 46, the other end of the first push rod 46 movably penetrates through the fixed sleeve 44 and is slidably connected with a sliding groove 43, the circumferential surface of the first push rod 46 is sleeved with a first spring 47, and the first spring 47 is positioned in the inner cavity of the fixed sleeve 44. By the movement of the first push rod 46 toward the direction approaching the trapezoidal block 41, the other end of the first push rod 46 slides in the slide groove 43 and drives the trapezoidal block 41 to rotate outward with the hinge pivot as the axis.

Based on the above scheme, the present invention uses the liquid as the driving medium through the movement mechanism 5 to drive the first push rod 46 to move towards the direction approaching to the trapezoid block 41, specifically: all the fixed sleeves 44 are communicated with a second main pipe 512 through pipelines, and fourth connecting pipes 510 which are matched with the upright posts 1 in number are connected on the second main pipe 512 in series; the third chamber 521 is filled with liquid, the third chamber 521 is provided with a first port 55 in communication, and the other end of the first port 55 is communicated with a fourth connecting pipe 510. When the upright 1 moves in the direction away from the highway, it drives the second piston 52 to squeeze the liquid in the third chamber 521, and the liquid in the third chamber 521 sequentially passes through the first interface 55, the fourth connecting pipe 510 and the second main pipe 512, finally flows into the inner cavity of the fixed sleeve 44, and pushes the first piston 45 to move in the direction approaching the trapezoid block 41, so that the rotation of the trapezoid block 41 is realized.

Likewise, the present invention controls the flow direction of the liquid in the second main pipe 512 so that the liquid can only flow toward the rear (away from the normal driving direction) of the collision area, specifically: the second main pipe 512 is connected with a reverse check valve 513 in series, and the flow direction of the reverse check valve 513 is deviated from the normal driving direction, so that the movement mechanism 5 only drives the trapezoid block 41 behind the collision area to rotate, and the movement mechanism is used for warning the driver that the accident that the vehicle collides with the guardrail occurs in front.

Because the forward check valve 59 and the reverse check valve 513 are arranged, the liquid in the second cavity 35 can only flow into the fourth cavity 522, the liquid in the third cavity 521 can only flow into the inner cavity of the trapezoid block 41, when the accident of the vehicle hitting the guardrail is finished, the whole isolation guardrail needs to be restored, therefore, the invention connects the first valve 514 in parallel with the two ends of the forward check valve 59, connects the second valve 515 in parallel with the two ends of the reverse check valve 513, only needs to open the first valve 514 and the second valve 515 (both are normally closed state) when the isolation guardrail is restored, the second piston 52 pushes the second piston 52 to restore, the liquid in the fourth cavity 522 is pushed out to flow into the second cavity 35 again, and simultaneously, suction is generated to suck the liquid in the fourth cavity 522 into the third cavity 521; similarly, the first push rod 46 drives the first piston 45 to move away from the trapezoid block 41, and the liquid in the trapezoid block 41 is discharged into the third chamber 521 again.

On the other hand, because the arc area that the collision formed leads to the reflector element 4 of this area installation all to the direction motion that deviates from the highway, lead to being difficult to with the light contact of car light irradiation and form the reflection of light, but outwards rotate through actuating mechanism 5 drive reflector element 4, can improve the contact probability of reflector element 4 and light in the arc area to a certain extent, improved the visual degree by the striking area, the driver of being convenient for observes the place ahead accident, does benefit to the driver and in time reacts, has improved driving safety.

In the description of the present invention, the terms "first," "second," "another," "yet another" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a highway safety isolation guardrail, is constituteed by the concatenation of several guardrail unit, and guardrail unit is including three stand (1) of distributing side by side, and corrugated steel guardrail board (2), its characterized in that are installed jointly to one side that three stand (1) are close to highway: the energy absorption component (3) is arranged on one side of the corrugated steel guardrail plate (2) close to the highway, the energy absorption component (3) is of a cavity structure, liquid is stored in the energy absorption component (3), the moving mechanism (5) is arranged on the other side of the corrugated steel guardrail plate (2), the moving mechanism (5) is communicated with the inner cavity of the energy absorption component (3), and a plurality of reflecting components (4) are hinged on one side of the corrugated steel guardrail plate (2) close to the highway; the motion mechanism (5) uses liquid as a conduction medium, drives the upright post (1) in front of the collision area to do linear motion towards the direction deviating from the highway in advance, and simultaneously drives the reflecting component (4) behind the collision area to rotate towards the direction approaching the highway.

2. A highway safety isolation barrier according to claim 1 wherein: the energy-absorbing component (3) comprises two mounting frames (31) which are vertically symmetrically arranged, the mounting frames (31) are fixedly arranged on the corrugated steel guardrail plate (2), a rubber roller (33) is arranged between the two mounting frames (31), the rubber roller (33) is of a cavity structure, and the cavity is communicated with a first connecting pipe (36).

3. A highway safety isolation barrier according to claim 2 wherein: the inside of the rubber roller (33) is sequentially provided with a first cavity (34) and a second cavity (35) from outside to inside, gas is stored in the first cavity (34), liquid is stored in the second cavity (35), and the second cavity (35) is communicated with the first connecting pipe (36).

4. A highway safety isolation barrier according to claim 2 or 3 wherein: a rotating shaft (32) is movably arranged between the two mounting frames (31) which are vertically symmetrical, and a rubber roller (33) is fixedly sleeved on the rotating shaft (32).

5. A highway safety isolation barrier according to claim 1 wherein: the lower extreme of stand (1) is installed installation piece (11), and both sides that installation piece (11) perpendicular to highway are provided with first base (12) and second base (13) respectively, and fixed mounting has two guide bars (14) between first base (12) and second base (13), and guide bar (14) activity run through installation piece (11).

6. The highway safety isolation barrier of claim 5, wherein: the moving mechanism (5) comprises a first main pipe (58) connected with all second connecting pipes (37), the first main pipe (58) is fixedly arranged on a corrugated steel guardrail plate (2), third connecting pipes (57) which are matched with the number of the upright posts (1) are connected to the corrugated steel guardrail plate (2), the moving mechanism also comprises a shell (51) arranged in the second base (13), a second piston (52) is slidingly connected to the inner cavity of the shell (51), a second push rod (53) is arranged at one end of the second piston (52), and the second push rod (53) movably penetrates through the shell (51) and is fixedly connected with the mounting block (11); the other end of the second piston (52) is provided with a second spring (54); the inner cavity of the shell (51) is of a structure with thick middle and thin two ends, the second piston (52) is slidably assembled in a thick middle area, the second piston (52) divides the inner cavity of the shell (51) into two independent closed spaces of a third chamber (521) and a fourth chamber (522), the fourth chamber (522) is communicated with and provided with a second interface (56), and the other end of the second interface (56) is connected with a third connecting pipe (57).

7. The highway safety isolation barrier of claim 6, wherein: the first main pipe (58) is connected with a forward check valve (59) in series, and the flow direction of the forward check valve (59) is consistent with the normal running direction of the vehicle.

8. The highway safety isolation barrier of claim 6, wherein: the light reflecting component (4) comprises a trapezoid block (41) hinged on the corrugated steel guardrail plate (2), the trapezoid block (41) is of an isosceles trapezoid structure, a light reflecting film (42) is adhered to the end face, far away from the corrugated steel guardrail plate (2), of the trapezoid block (41), and a sliding groove (43) which is horizontally arranged is formed in the end face, close to the corrugated steel guardrail plate (2), of the trapezoid block (41); the corrugated steel guardrail plate is characterized by further comprising a fixing sleeve (44) fixedly inserted on the corrugated steel guardrail plate (2), wherein the inner cavity of the fixing sleeve (44) is slidably connected with a first piston (45), one end of the first piston (45) is provided with a first push rod (46), the other end of the first push rod (46) movably penetrates through the fixing sleeve (44) and is slidably connected with the sliding groove (43), the circumferential surface of the first push rod (46) is sleeved with a first spring (47), and the first spring (47) is located in the inner cavity of the fixing sleeve (44).

9. The highway safety isolation barrier of claim 8, wherein: all the fixed sleeves (44) are communicated with a second main pipe (512) through pipelines, and fourth connecting pipes (510) which are matched with the upright posts (1) in number are connected on the second main pipe (512) in series; the third chamber (521) is filled with liquid, the third chamber (521) is provided with a first interface (55) in a communicating way, and the other end of the first interface (55) is communicated with a fourth connecting pipe (510).

10. The highway safety isolation barrier of claim 9, wherein: the second main pipe (512) is connected with a reverse check valve (513) in series, and the flow direction of the reverse check valve (513) is consistent with the direction deviating from the normal driving direction.