A highway safety barrier

Abstract

The application discloses a highway safety isolation fence, and relates to the technical field of isolation fences, which is composed of a plurality of fence units spliced together, wherein each fence unit comprises three upright columns arranged side by side, a corrugated steel guardrail plate is installed on the side of the three upright columns close to the highway, an energy-absorbing component is installed on the side of the corrugated steel guardrail plate close to the highway, the energy-absorbing component is a cavity structure, a liquid is stored in the cavity, a movement mechanism is installed on the other side of the corrugated steel guardrail plate, the movement mechanism is communicated with the cavity of the energy-absorbing component, and a plurality of reflecting components are hingedly connected to the side of the corrugated steel guardrail plate close to the highway. The upright columns before the arc-shaped area are driven to move by the movement mechanism, and the upright columns move away from the highway, so that the turning angle of the vehicle after the vehicle collides with the fence is reduced, meanwhile, the reflecting components after the arc-shaped area are driven to rotate towards the highway, so that the drivers behind the arc-shaped area are warned in advance, and the probability of secondary accidents of the accident vehicle is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of isolation guardrails, in particular to a highway safety isolation guardrail. BACKGROUND

[0002] The highway guardrail is a continuous semi-steel guardrail system composed of corrugated steel guardrails and main columns. Its main function is to effectively limit the vehicle within the highway when the vehicle accident occurs, preventing the vehicle from running off the road. This guardrail has the characteristics of continuous protection, crashworthiness, energy absorption, etc., which can protect the personal safety of drivers and passengers.

[0003] When a vehicle hits the isolation guardrail, the impacted area will be concave outward to form an arc-shaped concave area. The kinetic energy of the vehicle will cause the vehicle to continue to slide along the arc-shaped area, forming a turning action. If the length of the arc-shaped area is very short, it means that the vehicle needs to complete the process from the original driving direction to the turning direction in a short distance, which will cause the vehicle to produce a large turning angle, increasing the risk of vehicle rollover. Because the lateral inertia force generated by the vehicle during high-speed driving will be difficult to be smoothly consumed, thus easily causing the vehicle to lose balance and rollover. In addition, the reflective components on the impacted area will move away from the road after the collision, resulting in the inability to form effective reflection, affecting the driver's early awareness of the accident in front. The above problems may increase the severity of the accident and reduce the safety of the driver. Based on this, the present application proposes a highway safety isolation guardrail. SUMMARY

[0004] The purpose of the present application is to provide a highway safety isolation guardrail to solve the problems raised in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A highway safety isolation guardrail is composed of a plurality of guardrail units spliced together. The guardrail unit includes three upright columns arranged side by side. A corrugated steel guardrail plate is installed on the side of the three upright columns close to the highway. An energy-absorbing component is installed on the side of the corrugated steel guardrail plate close to the highway, and the energy-absorbing component is a cavity structure with liquid stored inside. A movement mechanism is installed on the other side of the corrugated steel guardrail plate, and the movement mechanism communicates with the inner cavity of the energy-absorbing component. A plurality of reflective components are hingedly connected to the side of the corrugated steel guardrail plate close to the highway. The movement mechanism uses liquid as a conductive medium to drive the upright columns before the impact area to move linearly away from the highway, while driving the reflective components after the impact area to rotate towards the highway. The reference direction of the reflective components when moving is from the normal driving direction of the vehicle to the direction away from the normal driving direction of the vehicle.

[0007] Preferably, the energy absorption component comprises two mounting frames arranged symmetrically up and down, the mounting frames are fixedly installed on the corrugated steel guardrails, a rubber roller is installed between the two mounting frames, the rubber roller is a cavity structure, and the cavity is communicated with a first connecting pipe.

[0008] Preferably, the inside of the rubber roller is sequentially provided with a first cavity and a second cavity from outside to inside, the first cavity stores gas, and the second cavity stores liquid, and the second cavity is communicated with the first connecting pipe.

[0009] Preferably, a rotating shaft is movably installed between the two mounting frames arranged symmetrically up and down, and the rubber roller is fixedly sleeved on the rotating shaft.

[0010] Preferably, the lower end of the stand is provided with a mounting block, the first base and the second base are respectively arranged on the two sides of the mounting block perpendicular to the road, two guide rods are fixedly installed between the first base and the second base, and the guide rods movably penetrate through the mounting block.

[0011] Preferably, the moving mechanism comprises a first main pipe connected with all the second connecting pipes, the first main pipe is fixedly installed on the corrugated steel guardrail, the corrugated steel guardrail is connected with third connecting pipes matched with the number of the stands, and the moving mechanism further comprises a housing arranged in the second base, an inner cavity of the housing is slidably connected with a second piston, one end of the second piston is provided with a second push rod, the second push rod movably penetrates through the housing 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 housing is in a structure that is thick in the middle and thin at both ends, the second piston is slidably assembled in the middle thick area, the second piston divides the inner cavity of the housing into two independent closed spaces, i.e., a third chamber and a fourth chamber, a second connector is arranged in communication with the fourth chamber, and the other end of the second connector is connected with the third connecting pipe.

[0012] Preferably, a forward one-way valve is connected in series on the first main pipe, and the flow direction of the forward one-way valve is consistent with the normal driving direction of the vehicle.

[0013] Preferably, the reflective component comprises a trapezoidal block hingedly connected to the corrugated steel guardrail, the trapezoidal block is in an isosceles trapezoidal structure, an end surface of the trapezoidal block away from the corrugated steel guardrail is bonded with a reflective film, and an end surface of the trapezoidal block close to the corrugated steel guardrail is provided with a horizontally arranged sliding groove; the reflective component further comprises a fixed sleeve penetrating through the corrugated steel guardrail, an 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, a circumferential surface of the first push rod is sleeved with a first spring, and the first spring is located in the inner cavity of the fixed sleeve.

[0014] Preferably, all the fixed sleeves are communicated with a second main pipe through a pipeline, the second main pipe is connected with a fourth connecting pipe in series, the number of the fourth connecting pipe is matched with the number of the columns; the third chamber is filled with liquid, the first interface is installed in the third chamber, and the other end of the first interface is communicated with the fourth connecting pipe.

[0015] 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 away from the normal driving direction.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] (1) The present application absorbs the force generated when the vehicle hits the corrugated steel guardrail through the energy absorbing component, and extrudes the liquid stored therein into the movement mechanism, which uses liquid as a conductive medium to drive the columns before the collision area to move linearly away from the road, so that the arc-shaped area formed by the collision extends along the driving direction of the vehicle, reducing the angle when the vehicle turns, thereby achieving the purpose of reducing the risk of vehicle rollover.

[0018] (2) After the isolation guardrail collides with the vehicle to form an arc-shaped area, the movement mechanism uses liquid as a conductive medium to drive the reflective components after the collision area to rotate a certain angle towards the road, increasing the included angle between the reflective components and the driving direction of the vehicle, so that the number of reflective components that can reflect light when the vehicle headlights are on increases, which helps the driver to observe the accident in front of the vehicle in advance. At the same time, because the number of reflective components increases, the brightness of the reflection also increases, which causes a significant brightness difference, reminding the driver that a vehicle collision with the guardrail may have occurred in front of him. This design not only helps the driver to react earlier and improves driving safety, but also provides a clear visual warning, which helps to reduce the risk of traffic accidents.

[0019] (3) After the vehicle hits the isolation guardrail, the movement mechanism drives the reflective components in the arc-shaped area to rotate outward, which can increase the contact probability of the reflective components in the arc-shaped area with the light to some extent. By increasing this contact, the reflective components in the impacted area can more fully reflect the light from the oncoming vehicle, thereby improving the visibility of the impacted area, making it easier for the driver to observe the location of the impact event, helping the driver to more accurately judge the road conditions and take appropriate avoidance and response measures, thereby improving the safety and warning effect of the traffic accident site.

[0020] (4) The motion mechanism drives the column in front of the arc-shaped area to move towards the direction away from the road with liquid as the driving medium, which reduces the turning angle of the vehicle after the collision, reduces the probability of the vehicle rollover, drives the reflective component behind the arc-shaped area to rotate towards the direction close to the road, increases the brightness and length of the reflective area, not only provides warning for the driver of the following vehicle, reduces the probability of subsequent collision, but also creates a stronger warning effect at the accident site, guides the driver to take evasive measures, and further reduces the severity of the accident. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, illustrate the application, and are used to explain the application, and do not constitute a limitation on the application, in the drawings:

[0022] Figure 1 The structure schematic diagram of the guardrail unit proposed in the embodiment of the application;

[0023] Figure 2 The structure schematic diagram of the corrugated steel guardrail plate in the embodiment of the application;

[0024] Figure 3 The normal state schematic diagram of the isolation guardrail composed of three guardrail units in the embodiment of the application;

[0025] Figure 4 The impact state schematic diagram of the isolation guardrail composed of three guardrail units in the embodiment of the application;

[0026] Figure 5 The installation structure schematic diagram of the column in the embodiment of the application;

[0027] Figure 6 The cross-sectional structure schematic diagram of the second base in the embodiment of the application;

[0028] Figure 7 The structure schematic diagram of the energy-absorbing component in the embodiment of the application;

[0029] Figure 8 The cross-sectional structure schematic diagram of the energy-absorbing component in the embodiment of the application;

[0030] Figure 9 The installation structure schematic diagram of the energy-absorbing component and the corrugated steel guardrail plate in the embodiment of the application;

[0031] Figure 10 The local structure schematic diagram of the motion mechanism in the embodiment of the application;

[0032] Figure 11 The structure schematic diagram of the reflective component in the embodiment of the application;

[0033] Figure 12 Figure 1 is a sectional view of the fixed sleeve in the embodiment of the present application.

[0034] Figure 1 is a sectional view of the fixed sleeve in the embodiment of the present application.

[0035] 2, corrugated steel guard plate; 21, recess; 22, horizontal convex part;

[0036] 3, energy absorption component; 31, mounting frame; 32, rotating shaft; 33, rubber roller; 34, first cavity; 35, second cavity; 36, first connecting pipe; 37, second connecting pipe;

[0037] 4, reflective component; 41, trapezoidal block; 42, reflective film; 43, chute; 44, fixed sleeve; 45, first piston; 46, first push rod; 47, first spring;

[0038] 5, motion mechanism; 51, housing; 52, second piston; 521, third chamber; 522, fourth chamber; 53, second push rod; 54, second spring; 55, first interface; 56, second interface; 57, third connecting pipe; 58, first main pipe; 59, forward check valve; 510, fourth connecting pipe; 512, second main pipe; 513, reverse check valve; 514, first valve; 515, second valve. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0040] Please refer to Figures 1-12The embodiment provides a highway safety isolation guardrail, and corrugated steel guardrails 2 are jointly arranged on one side of the highway close to the columns 1 (the corrugated steel guardrails 2 are composed of a plurality of guardrail units, and each guardrail unit comprises three columns 1 arranged side by side, and it is worth noting that the two corrugated steel guardrails 2 close to each other share one column 1). The corrugated steel guardrails 2 block the vehicles and change the advancing direction of the vehicles, so that the vehicles are prevented from running out of the highway, and when the vehicles collide with the corrugated steel guardrails 2, the corrugated steel guardrails 2 are deformed and absorb the energy during the collision, so that the probability of the vehicles being crashed is reduced, and the vehicles and the drivers and passengers are well protected. In actual application, the collision area in the corrugated steel guardrail 2 forms a small concave arc area in the direction away from the highway, and before the kinetic energy of the vehicle disappears, the vehicle will continue to collide with the corrugated steel guardrail 2 in the direction of the vehicle head until the vehicle is separated from the isolation guardrail, but in this process, due to the short length of the arc area, the turning angle of the vehicle is large, and the vehicle is prone to rollover. Therefore, the energy-absorbing component 3 is arranged on the side of the corrugated steel guardrail 2 close to the highway, the energy-absorbing component 3 is a cavity structure, liquid is stored in the cavity structure, the other side of the corrugated steel guardrail 2 is provided with a movement mechanism 5, when the energy-absorbing component 3 collides with the vehicle, the liquid stored in the energy-absorbing component 3 enters the movement mechanism 5, the movement mechanism 5 uses the liquid as a conduction medium, and drives the column 1 before the collision area to move linearly in the direction away from the highway in advance, so that the length of the arc area formed by the collision is increased, the turning angle of the vehicle is reduced, and the probability of the vehicle rollover is reduced.

[0041] Specifically, the energy-absorbing component 3 comprises two mounting frames 31 arranged in an upper-lower symmetrical mode, the mounting frames 31 are fixedly installed on the corrugated steel guardrail 2, a rubber roller 33 is installed between the two mounting frames 31, the rubber roller 33 is a cavity structure, a first connecting pipe 36 is connected to the cavity, and liquid is stored in the cavity, when the vehicle collides with the rubber roller 33, the rubber roller 33 is extruded, and the liquid stored in the rubber roller 33 flows into the movement mechanism 5 through the first connecting pipe 36.

[0042] On the basis of the above scheme, since the corrugated steel guardrail plate 2 is integrally formed with the recessed portion 21 and the horizontal protruding portion 22 on the side close to the highway, in order to limit the offset distance of the rubber roller 33 after being impacted, the rubber roller 33 is installed in the recessed portion 21, and the shape of the rubber roller 33 matches the recessed portion 21, the displacement of the rubber roller 33 in the vertical direction is limited by the shape of the recessed portion 21, and the rubber roller 33 can maximize the energy generated during impact. At the same time, since the recessed portion 21 wraps part of the rubber roller 33, the rubber roller 33 cannot be completely extruded, thereby reducing the amount of liquid flowing out and affecting the action of the movement mechanism 5 behind. Therefore, the rubber roller 33 is provided as a double-cavity structure of two layers, that is, the inside of the rubber roller 33 is provided with a first cavity 34 and a second cavity 35 from the outside to the inside, the first cavity 34 stores gas, the second cavity 35 stores liquid, and the second cavity 35 is in communication with the first connecting pipe 36. When a collision occurs, the vehicle first extrudes the gas in the first cavity 34, the extruded gas compresses the space of the second cavity 35, and then cooperates with the vehicle to form double extrusion on the second cavity 35, so that the liquid stored in the second cavity 35 is discharged. At the same time, the first cavity 34 also protects the second cavity 35, reducing the probability of damage to the second cavity 35 when impacted.

[0043] In order to better guide the vehicle to turn, the rubber roller 33 is installed in a rotating manner, specifically: the rotating shaft 32 is movably installed between the two upper and lower symmetrical mounting frames 31, and the rubber roller 33 is fixedly sleeved on the rotating shaft 32, and the rotation of the rubber roller 33 assists the vehicle to turn.

[0044] At the same time, since each second cavity 35 needs to be in communication with the movement mechanism 5, in order to reduce the amount of pipeline used, the energy absorbing component 3 in the application adopts an upper and lower symmetrical layout, and the second connecting pipe 37 is commonly connected between the two first connecting pipes 36 adjacent to each other, and the second connecting pipe 37 is in communication with the movement mechanism 5.

[0045] Before the column 1 is driven to move in the direction away from the highway by the moving mechanism 5, the installation mode of the column 1 needs to be adaptively adjusted, specifically: the lower end of the column 1 is provided with a mounting block 11, the mounting block 11 is provided with a first base 12 and a second base 13 perpendicular to the two sides of the highway, two guide rods 14 are fixedly installed between the first base 12 and the second base 13, and the guide rods 14 movably penetrate the mounting block 11. The column 1 can move along the axial direction of the guide rod 14, and after the corrugated steel guardrail plate 2 is collided, the column 1 also moves in the axial direction of the guide rod 14 away from the highway. In order to reduce the impact force of the mounting block 11 on the second base 13, a buffer pad 15 is installed on the side of the mounting block 11 close to the second base 13, which plays a buffering role through the buffer pad 15. In order to improve the firmness of the column 1, the first base 12 and the second base 13 are both formed by pouring concrete, and extend into the highway subgrade.

[0046] 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 installed on the corrugated steel guardrail plate 2, the corrugated steel guardrail plate 2 is connected with a third connecting pipe 57 matched in number with the column 1, and further comprises a shell 51 arranged in the second base 13, a second piston 52 is slidably connected in the inner cavity of the shell 51, one end of the second piston 52 is provided with a second push rod 53, the second push rod 53 movably penetrates 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 in the direction close to the highway by the second spring 54, and part of the impact force can be absorbed by the deformation of the second spring 54 when being impacted; the inner cavity of the shell 51 is in a structure of thick in the middle and thin at both ends, the second piston 52 is slidably assembled in the middle thicker area, the second piston 52 divides the inner cavity of the shell 51 into two independent closed spaces, i.e. a third chamber 521 and a fourth chamber 522, and the fourth chamber 522 is communicated with a second interface 56, and the other end of the second interface 56 is connected with the third connecting pipe 57. The liquid in the second cavity 35 is sequentially flowed 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, and as the volume of the flowed liquid increases, the second piston 52 is driven to move in the direction away from the highway, thereby driving the column 1 to move in the direction away from the highway, the column 1 drives the corrugated steel guardrail plate 2 fixedly connected therewith to move in the direction away from the highway, so that the length of the arc-shaped area generated in the impact area is increased.

[0047] Since the vehicle will only move along the direction of its head after the impact, in other words, the vehicle will only move towards one direction, if the flow direction of the liquid in the second cavity 35 is not controlled, the corrugated steel guardrails 2 on both sides of the impact area will move, which will cause the length of the arc-shaped area to extend to both sides, so that the effective length of the vehicle contacting the arc-shaped area is reduced, therefore, the present application has a forward check valve 59 connected in series on the first main pipe 58, and the flow direction of the forward check valve 59 is consistent with the normal driving direction of the vehicle, so that the length of the arc-shaped area will only extend towards the driving direction of the vehicle, further reducing the angle of the vehicle turning.

[0048] Because most highways have no street lights, the light is dim, and the vehicle driving on the road cannot see the road conditions, which is easy to cause accidents, so the reflective component 4 is installed on the corrugated steel guardrail 2 every certain distance on the highway, which mainly plays a role in improving the night reflection, emitting specific reflected light in the dark, prompting the driver to pay attention to the road direction and distance of the vehicle driving. Since the reflective component 4 in the prior art is fixedly installed, that is, the installation angle of the reflective component 4 is unchangeable, and the number of reflective components 4 that can reflect light when the vehicle lamp is illuminated is certain, if a vehicle impact guardrail event occurs in a certain place on the highway, and the reflective component 4 installed on the normal straight line section is fifty meters apart, the reflective distance of the reflective component 4 to the vehicle lamp can reach about one kilometer, but the driver can clearly see the road surface when he is about two hundred meters away from the reflective component 4, therefore, in order to let the driver see the accident vehicle that needs to be avoided in advance, the reflective component 4 in the present application is installed in a hinged manner, and when the vehicle collides with the energy-absorbing component 3 in a certain place, the movement mechanism 5 drives the reflective component 4 behind the collision area to rotate towards the direction close to the highway by a certain angle using liquid as the conduction medium, increases the included angle between the reflective component 4 and the driving direction, increases the number of reflective components 4 that can reflect light when the vehicle lamp is illuminated, and at the same time improves the brightness of the reflection, which is used to prompt the driver that there is a vehicle impact guardrail accident in the front road section. It should be noted that in order to avoid the reflection affecting the driver's vision, the rotation angle of the reflective component 4 in the present embodiment is not greater than five degrees.

[0049] Specifically, the reflective component 4 comprises a trapezoidal block 41 hinged on the corrugated steel guardrail 2, the trapezoidal block 41 is in isosceles trapezoidal structure, an end of the trapezoidal block 41 away from the corrugated steel guardrail 2 is bonded with a reflective film 42, and an end of the trapezoidal block 41 close to the corrugated steel guardrail 2 is provided with a horizontally arranged sliding groove 43; the reflective component 4 further comprises a fixed sleeve 44 fixedly inserted on the corrugated steel guardrail 2, a first piston 45 is slidably connected in the inner cavity of the fixed sleeve 44, one end of the first piston 45 is provided with a first push rod 46, the other end of the first push rod 46 is movably inserted through the fixed 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 fixed sleeve 44. Through the movement of the first push rod 46 towards the trapezoidal block 41, the other end of the first push rod 46 is slid in the sliding groove 43, and the trapezoidal block 41 is driven to rotate outward about the hinge pivot.

[0050] On the basis of the above scheme, the movement mechanism 5 uses liquid as a driving medium to drive the first push rod 46 to move towards the trapezoidal block 41, specifically: all the fixed sleeves 44 are commonly connected through a pipeline with a second main pipe 512, and the second main pipe 512 is connected in series with fourth connecting pipes 510 matched with the number of the stand 1; the third cavity 521 is filled with liquid, and the third cavity 521 is connected with a first interface 55, and the other end of the first interface 55 is connected with the fourth connecting pipe 510. When the stand 1 moves away from the highway, the second piston 52 is driven to extrude the liquid in the third cavity 521, the liquid in the third cavity 521 sequentially passes through the first interface 55, the fourth connecting pipe 510 and the second main pipe 512, and finally flows into the inner cavity of the fixed sleeve 44, and drives the first piston 45 to move towards the trapezoidal block 41, thereby realizing the rotation of the trapezoidal block 41.

[0051] Similarly, the flow direction of the liquid in the second main pipe 512 is controlled so that it can only flow after the collision area (away from the normal driving direction), specifically: the second main pipe 512 is connected in series with a reverse check valve 513, and the flow direction of the reverse check valve 513 is away from the normal driving direction, so that the movement mechanism 5 only drives the trapezoidal block 41 after the collision area to rotate, which is used to warn the driver that a vehicle collision with the guardrail has occurred in front.

[0052] Due to the setting of the forward check valve 59 and the reverse check valve 513, the liquid in the second cavity 35 can only flow into the fourth chamber 522, and the liquid in the third chamber 521 can only flow into the inner cavity of the trapezoidal block 41, when the vehicle hits the guardrail accident handling is completed, the whole isolation guardrail needs to be restored, therefore, the first valve 514 is connected in parallel at both ends of the forward check valve 59, and the second valve 515 is connected in parallel at both ends of the reverse check valve 513, when the isolation guardrail is restored, only the first valve 514 and the second valve 515 are opened (both are normally closed), the second piston 52 is pushed to restore by the second spring 54, the second piston 52 pushes the liquid in the fourth chamber 522 out, so that the liquid flows into the second cavity 35 again, and at the same time, the liquid in the fourth chamber 522 is sucked into the third chamber 521 by the suction force; similarly, the first piston 45 is driven by the first push rod 46 to move away from the trapezoidal block 41, and the liquid in the trapezoidal block 41 is discharged into the third chamber 521 again.

[0053] On the other hand, due to the arc-shaped area formed by the collision, the reflective parts 4 installed in the area move away from the direction of the highway, which makes it difficult to contact the light emitted by the vehicle lamp and form a reflection, but by driving the reflective parts 4 to rotate outward through the movement mechanism 5, the contact probability of the reflective parts 4 in the arc-shaped area with the light can be improved to a certain extent, the visibility of the impacted area is improved, the driver can observe the accident in front, the driver can respond in time, and the driving safety is improved.

[0054] In the description of the present application, the terms "first", "second", "another", "yet another" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0055] In the description of the present application, it should be noted that, unless otherwise specifically specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or detachably connected, or integrally connected, it can be mechanically connected, or electrically connected, it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0056] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A highway safety barrier, composed of several barrier units spliced ​​together, each barrier unit including three parallel posts (1), the three posts (1) having a corrugated steel guardrail plate (2) installed on the side closest to the highway, characterized in that: The corrugated steel guardrail (2) has an energy-absorbing component (3) installed on the side closest to the road. The energy-absorbing component (3) is a cavity structure containing liquid. The other side of the corrugated steel guardrail (2) has a motion mechanism (5) installed. The motion mechanism (5) is connected to the cavity of the energy-absorbing component (3). Several reflective components (4) are also hinged on the side of the corrugated steel guardrail (2) closest to the road. The motion mechanism (5) uses liquid as a conductive medium to drive the column (1) before the collision area to move in a straight line away from the road. At the same time, it also drives the reflective component (4) after the collision area to rotate towards the road. An installation block (11) is installed at the lower end of the column (1). The installation block (11) is perpendicular to the two sides of the road and is provided with a first base (12) and a second base (13). Two guide rods (14) are fixedly installed between the first base (12) and the second base (13), and the guide rods (14) can move through the installation block (11). The motion mechanism (5) includes a first main pipe (58) connected to all the second connecting pipes (37), the first main pipe (58) being fixedly installed on the corrugated steel guardrail (2), and a third connecting pipe (57) matching the number of posts (1) connected to the corrugated steel guardrail (2). It also includes a housing (51) located inside the second base (13), with a second piston (52) slidably connected to the inner cavity of the housing (51). A second push rod (53) is installed at one end of the second piston (52), and the second push rod (53) moves through the housing (51). 51) and fixedly connected to the mounting block (11); the other end of the second piston (52) is equipped with a second spring (54); the inner cavity of the housing (51) has a structure that is thick in the middle and thin at both ends. The second piston (52) is slidably assembled in the thicker middle area. The second piston (52) divides the inner cavity of the housing (51) into two independent closed spaces, the third chamber (521) and the fourth chamber (522). The fourth chamber (522) is connected to the second interface (56). The other end of the second interface (56) is connected to the third connecting pipe (57). The reflective component (4) includes a trapezoidal block (41) hinged to the corrugated steel guardrail (2). The trapezoidal block (41) has an isosceles trapezoidal structure. A reflective film (42) is bonded to the end face of the trapezoidal block (41) away from the corrugated steel guardrail (2). A horizontally set groove (43) is opened on the end face of the trapezoidal block (41) close to the corrugated steel guardrail (2). It also includes a fixed sleeve (44) fixedly inserted into the corrugated steel guardrail (2). A first piston (45) is slidably connected to the inner cavity of the fixed sleeve (44). A first push rod (46) is installed at one end of the first piston (45). The other end of the first push rod (46) moves through the fixed sleeve (44) and is slidably connected to the groove (43). A first spring (47) is sleeved on the circumferential surface of the first push rod (46). The first spring (47) is located in the inner cavity of the fixed sleeve (44).

2. The highway safety barrier according to claim 1, characterized in that: The energy-absorbing component (3) includes two mounting brackets (31) arranged symmetrically in the upper and lower positions. The mounting brackets (31) are fixedly installed on the corrugated steel guardrail (2). A rubber roller (33) is installed between the two mounting brackets (31). The rubber roller (33) has a cavity structure and the cavity is connected to the first connecting pipe (36).

3. A highway safety barrier according to claim 2, characterized in that: The rubber roller (33) has a first cavity (34) and a second cavity (35) arranged sequentially from the outside to the inside. The first cavity (34) stores gas, and the second cavity (35) stores liquid. The second cavity (35) is connected to the first connecting pipe (36).

4. A highway safety barrier according to claim 2 or 3, characterized in that: A rotating shaft (32) is movably installed between two symmetrical mounting brackets (31), and a rubber roller (33) is fixedly sleeved on the rotating shaft (32).

5. A highway safety barrier according to claim 1, characterized in that: A forward check valve (59) is connected in series on the first main pipe (58), and the flow direction of the forward check valve (59) is consistent with the normal driving direction of the vehicle.

6. A highway safety barrier according to claim 1, characterized in that: All the fixed sleeves (44) are connected to the second main pipe (512) through the pipe. The second main pipe (512) is connected in series with a fourth connecting pipe (510) matching the number of columns (1). The third chamber (521) is filled with liquid. The third chamber (521) is connected to the first interface (55). The other end of the first interface (55) is connected to the fourth connecting pipe (510).

7. A highway safety barrier according to claim 6, characterized in that: A reverse check valve (513) is connected in series on the second main pipe (512), and the flow direction of the reverse check valve (513) is consistent with the direction away from the normal driving direction.

Images