CN108867471B

CN108867471B - Highway crash barrier

Info

Publication number: CN108867471B
Application number: CN201810920106.1A
Authority: CN
Inventors: 蒋昌霞
Original assignee: Anhui Huateng Agricultural Technology Co Ltd
Current assignee: Hebei Luji Transportation Technology Co ltd
Priority date: 2018-08-14
Filing date: 2018-08-14
Publication date: 2020-10-02
Anticipated expiration: 2038-08-14
Also published as: CN108867471A

Abstract

The invention belongs to the technical field of guardrails, and particularly relates to an expressway crash barrier which comprises a guardrail column, a buffer sleeve, a buffer column, a guard plate, a coil spring, a rotating arm, an elastic part and a sun-proof sleeve, wherein stepped holes are formed in two ends of the guardrail column; the buffer sleeve is detachably arranged in the stepped hole of the guardrail column; the buffer column is inserted in the buffer sleeve, the curved surface of the buffer column is provided with an arc-shaped rib, and the arc-shaped rib is positioned outside the buffer sleeve; the end part of the buffer column is fixedly connected with the guard plate; the rotating arm is sleeved on the guardrail column; the coil spring is sleeved between the rotating arm and the guardrail column and used for improving the rotating resistance of the rotating arm, the elastic component is arranged between the rotating arms on the adjacent guardrail columns, and the end part of the elastic component is fastened with the rotating arm; the sun-proof sleeve is sleeved on the elastic component and is used for preventing the elastic component from being exposed to heat and rain; the invention can effectively improve the anti-collision buffer capacity of the anti-collision guardrail on the highway, reduce the vehicle damage degree caused by accidents and reduce the casualties.

Description

Highway crash barrier

Technical Field

The invention belongs to the technical field of guardrails, and particularly relates to an anti-collision guardrail for a highway.

Background

At present, the protection devices on two sides of the highway are composed of upright posts and protection plates positioned on the upper parts of the upright posts, the protection plates are made of steel plates, and the upright posts and the protection plates are made of rigid materials and are also in rigid connection. When the automobile is out of control and collides with the protection plate, the protection device can prevent the automobile from turning into the waterproof ditches at the two sides of the highway or rushing into the opposite lane to collide with the automobile. However, practice proves that the protective plate with the structure has no buffering function, and under the strong impact force of an out-of-control automobile at high speed, the automobile is damaged and people die.

Patent document 1: crash barrier application No. 2014102461657

In the above patent document 1, a crash cushion pad composed of a PE outer layer and a PU foam inner layer filled in the PE outer layer is mounted on one surface of a cement guardrail body near the inner side of a road; the anti-collision buffer cushion plays a role in buffering the starting of an out-of-control automobile such as side turning and collision, and avoids the damage to the automobile, personnel in the automobile and people or objects outside the automobile caused by rigid collision on the cement body; but the number of protective layers of the anti-collision guardrail is less, and the protective capability is limited; meanwhile, the anti-collision guardrail has more tire buffer design aiming at the vehicle, but the vehicle head of the vehicle firstly touches the guardrail in case of common accidents, so that the anti-collision guardrail fails to work aiming at the buffer wheels.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides a highway crash barrier, and aims to improve the buffering capacity of the highway crash barrier. The impact force brought by the vehicle head is absorbed through the guard plate, and the vehicle speed is slowed down; impact force brought by the vehicle head is absorbed by gradually extruding the buffer columns into the buffer sleeve, and the vehicle speed is slowed down again; the speed of the vehicle is slowed down by the deformation of the guard plate and the extrusion of the rotating arm and the elastic component, and finally the vehicle is safely stopped; the anti-collision buffer capacity of the highway anti-collision guardrail is improved, and the use safety of the whole highway is further improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an expressway crash barrier which comprises guardrail columns, a buffer sleeve, buffer columns, a protective plate, a coil spring, a rotating arm, an elastic component and a sun-proof sleeve, wherein the guardrail columns are fixed on the ground, two ends of each guardrail column are provided with stepped holes, and the distance between every two adjacent guardrail columns is 3.5-4.5 m; the buffer sleeve is detachably arranged in the stepped hole of the guardrail column, and the buffer sleeve and the guardrail column are fastened through a fastener; the buffer column is embedded in the buffer sleeve, one end of the buffer column is positioned in the buffer sleeve, the other end of the buffer column extends out of the buffer sleeve, the end part of the buffer column is fixedly connected with the guard plate, and the guard plate is positioned on one side of the guardrail column with the road; the plurality of rotating arms are arranged, and the rotating arms are sleeved on the guardrail posts; the spring is sleeved between the rotating arm and the guardrail column and used for improving the rotating resistance of the rotating arm, the elastic part is arranged between the rotating arms on the adjacent guardrail columns, and the end part of the elastic part is fastened with the rotating arms; the sun-proof sleeve is sleeved on the elastic component and made of nylon, the sun-proof sleeve is used for preventing the elastic component from being exposed to heat and rain, and the service life of the elastic component is prolonged by the sun-proof sleeve; wherein the content of the first and second substances,

the curved surface of the buffer column is provided with an arc rib; the arc muscle is located outside the cushion collar, and the one side of arc muscle evagination is towards the cushion collar. The during operation, when the car hits the highway crash barrier on, the locomotive contacts with the backplate earlier, the backplate absorbs the impact force that the locomotive brought at first, slow down the speed of a motor vehicle, the cushion post is crowded in the cushion collar, cushion post and cushion collar absorb the impact force that the locomotive brought, slow down the speed of a motor vehicle once more, when the impact force of car is too big, the backplate is bumped flatly, the face laminating locomotive of backplate, the convex one side of backplate will support and lean on rotor arm and elastomeric element, the wind spring atress is crimpled, the impact force that the locomotive brought is absorbed once more to the wind spring, the rotor arm slows down the speed of a motor vehicle, simultaneously, the elastomeric element atress is elongated, the elastomeric element slows down the speed of.

The buffer sleeve comprises an outer sleeve and an inner sleeve, the outer sleeve is a metal sleeve, the outer sleeve is in a stepped cylindrical shape, the inner diameter of the outer sleeve is gradually changed from one end to the other end, the maximum inner diameter of the outer sleeve is matched with the maximum outer diameter of the buffer column, the maximum diameter of the buffer column comprises the diameter increased by the arc-shaped ribs, and a plurality of baffle sheets which are connected into a whole are arranged at the large-end orifice of the inner hole of the outer sleeve; the blocking piece is arranged on the inner wall of the outer sleeve in multiple circles, the thickness of the blocking piece is smaller than that of the arc-shaped rib, an inclined groove I is formed in the end portion of the blocking piece, and the blocking piece is used for blocking and clamping the arc-shaped rib; the inner sleeve is a rubber sleeve, the outer wall of the inner sleeve is matched with the inner wall of the outer sleeve, the inner diameter of the inner sleeve is the same as the minimum outer diameter of the buffer column, and a sleeve opening of the inner sleeve is provided with a bevel groove II. The during operation, when the cushion collar atress, the multilayer separation blade blocks the arc muscle layer upon layer, the thickness of separation blade is less than the thickness of arc muscle, can make the separation blade change to be out of shape and absorb the impact force that the arc muscle brought, the slope mouth one of separation blade tip can make the arc muscle pass the separation blade more easily, it is big because of the atress to avoid the arc muscle, the impact velocity is fast and by the rupture, after the arc muscle passes layer upon layer the separation blade, the arc muscle begins to get into the endotheca, it can make things convenient for the arc muscle to get into the endotheca more easily to set up oblique groove two, the endotheca has the cushioning effect to the arc muscle, be favorable to slowing.

The elastic component comprises a tension spring and a pull rope, and the end part of the tension spring is fixedly connected with the end face of the rotating arm; the end part of the pull rope is inserted into the end surface of the rotating arm, and the pull rope and the rotating arm are fastened through a fastening piece. When the vehicle collision buffer device works, the rotating arm is stressed and extruded, the rotating arm pulls the tension spring and the pull rope, the tension spring is stretched, the tension spring can slow down the rotating angle of the rotating arm, the vehicle speed is slowed down again when a vehicle collides against the rotating arm, the pull rope is tightened, the pull rope is stressed to tighten the rotating arm, the vehicle collision buffer device has a buffer effect on the vehicle head, the damage caused by vehicle collision is reduced, and the vehicle collision buffer device is favorable for improving the running safety of vehicles on a highway.

The pull rope comprises an elastic rope, an elastic rubber sleeve, a steel wire rope and a surface skin; the elastic rope is positioned on the inner layer and is made of a latex yarn or an EPDM (ethylene-propylene-diene monomer) material woven by a PP (polypropylene) material; the elastic rubber sleeve is wrapped outside the elastic rope; the number of the steel wire ropes is at least three, the steel wire ropes are positioned outside the elastic rubber sleeve, the diameter of each steel wire rope is smaller than one third of that of each elastic rope, and the steel wire ropes are in a loose state before being stressed; the elastic rope, the elastic rubber sleeve and the steel wire rope are wrapped in the surface skin, and the surface skin is made of polyvinyl chloride (PVC) materials. The during operation, the stay cord atress is pulled, and the epidermis of stay cord is taut, and elastic rope is elongated immediately, and elastic rope has preliminary pulling force effect to the rotor arm, and after elastic rope was elongated, wire rope was taut, and wire rope has the cushioning effect to the rotor arm, and wire rope and elastic rope can alleviate the impact force that the car brought once more to the pulling force of rotor arm, and the occurence of failure vehicle receives cushioning effect in the short time, is favorable to improving driver's degree of safety.

The arc-shaped ribs are provided with a plurality of circles which are uniformly distributed on the cylindrical surface of the buffer column, and the heights of the circles of arc-shaped ribs are gradually reduced along the direction of the convex surface; the buffer column is provided with a first spring, and the first spring is located on the side of the minimum arc-shaped rib. When the buffer column works, the buffer column is pressed into the buffer sleeve, the multiple circles of arc-shaped ribs on the buffer column sequentially open the separation blades from small to large to extrude towards the inner sleeve, and part of the arc-shaped ribs are pressed into the inner sleeve; in the process of extruding and breaking away the separation blade by the aid of the multiple circles of arc-shaped ribs, each circle of arc-shaped ribs is blocked, and the blocked force is gradually increased, so that the buffering effect of the buffering column is improved, after the partial arc-shaped ribs are extruded to the inner sleeve, the buffering effect of the buffering column is further increased, the buffering effect of the buffering column and the buffering sleeve is improved, the protection effect of the anti-collision guardrail of the highway is improved, and the use safety of the whole highway is improved.

The protective plate comprises a hard metal plate, a wave-shaped soft aluminum plate, an aluminum plate and a buffer pad, wherein a concave part is arranged on the hard metal plate; the aluminum plate is provided with the convex part, the aluminum plate and the hard metal plate are in inserted fit with each other, so that the aluminum plate and the hard metal plate are convenient to mount, and a cavity is formed between the inserted aluminum plate and the hard metal plate; the wavy soft aluminum plate is positioned in the cavity between the aluminum plate and the hard metal plate, so that the installation of the wavy soft aluminum plate is facilitated; a plurality of grooves are formed in the plate surface on one side of the aluminum plate; the cushion pad is embedded on the plate surface of the aluminum plate and is made of polyurethane foam energy dissipation materials or composed of a PE outer layer and a PU foam inner layer filled in the PE outer layer. When the automobile collision protection device works, when an automobile collides against a protection plate, the automobile head firstly contacts with the buffer cushion, the buffer cushion is compressed, the buffer cushion can reduce the deformation of the automobile head, the buffer cushion is used for protecting the automobile head, when the automobile continues to extrude, the buffer column is extruded into the buffer sleeve, when the impact force of the automobile is overlarge, the aluminum plate is pressed to deform, the aluminum plate can absorb part of the impact force brought by the automobile head, the wavy soft aluminum plate can absorb the impact force brought by the automobile head again, so that the automobile speed is rapidly reduced, meanwhile, the wavy soft aluminum plate can generate prestress on the hard metal plate and the aluminum plate, the buffer effect of the wavy soft aluminum plate can reduce the possibility that the hard metal plate and the aluminum plate are collided and broken, the hard metal plate and the aluminum plate are effectively protected, when the buffer cushion, the aluminum plate, the wavy soft aluminum plate and the hard metal plate are all collided and bent, the protection and the buffering effect are played to the locomotive, under the impact of locomotive residual force, the deformation of locomotive and rotor arm contact will be reduced, the damaged degree of locomotive is reduced, simultaneously, blotter, aluminum plate, wave soft aluminum plate and hard metal plate form a plurality of aspect, still have the space, can continue the compression, the impact force of locomotive has effectively been cushioned, reduce the speed of a motor vehicle or make the motor vehicle stop, the guard action of highway anticollision barrier has been improved, whole highway's safety in utilization has been improved.

A cement seat is arranged beside the guardrail column; the cement seat is arranged on the reverse side of one side, with the road, of the guardrail column and is in a right-angled trapezoid shape, and the right-angled trapezoid-shaped cement seat has stability; the bottom surface of the cement seat is attached to the ground. The during operation, the laminating of cement seat and guardrail post, the cement seat firmly supports the guardrail post, and when having the vehicle to hit highway anticollision barrier on, the very guardrail post of cement seat strength makes the guardrail post be difficult for warping because of the pulling force that receives backplate and rotor arm, has effectively kept the fixity of guardrail post for the highway anticollision barrier who is hit is difficult to be bumped and breaks away from, has effectively improved highway anticollision barrier's guard action, has improved whole highway's safety in utilization.

The invention has the following beneficial effects:

1. according to the highway anti-collision guardrail provided by the invention, the impact force brought by the vehicle head is absorbed through the guard plate, and the vehicle speed is slowed down; impact force brought by the vehicle head is absorbed by gradually extruding the buffer columns into the buffer sleeve, and the vehicle speed is slowed down again; the speed of the vehicle is slowed down by the deformation of the guard plate and the extrusion of the rotating arm and the elastic component, and finally the vehicle is safely stopped; the anti-collision buffer capacity of the highway anti-collision guardrail is improved, and the use safety of the whole highway is further improved.

2. According to the highway anti-collision guardrail provided by the invention, the arc-shaped ribs are blocked layer by the plurality of layers of blocking pieces, the thickness of the blocking pieces is smaller than that of the arc-shaped ribs, the blocking pieces can be deformed more easily to absorb the impact force brought by the arc-shaped ribs, the arc-shaped ribs can penetrate through the blocking pieces more easily by the slope openings at the end parts of the blocking pieces, the arc-shaped ribs are prevented from being broken due to large stress and high impact speed, when the arc-shaped ribs penetrate through the layers of blocking pieces, the inner sleeve has a buffering effect on the arc-shaped ribs, the speed of a vehicle is favorably slowed down, the harm brought by vehicle collision is.

3. According to the highway anti-collision guardrail provided by the invention, the plurality of circles of arc-shaped ribs with gradually reduced height are arranged on the cylindrical surface of the buffer column, so that each circle of arc-shaped ribs are blocked and the blocked force is gradually increased in the process of extruding and breaking the blocking piece by the plurality of circles of arc-shaped ribs, the buffer effect of the buffer column is improved, after part of arc-shaped ribs are extruded towards the inner sleeve, the buffer effect of the buffer column is further increased, the buffer effect of the buffer column and the buffer sleeve is improved, the protection and buffer capacity of the highway anti-collision guardrail is improved, and the use safety of the whole highway is further improved.

4. According to the highway anti-collision guardrail, the guard plate is arranged, so that when a vehicle collides against the guard plate, the cushion pad can reduce the deformation of the vehicle head and reduce the damage degree of the vehicle head; when the impact force of the vehicle is too large, the aluminum plate is pressed to deform, the aluminum plate absorbs the impact force caused by part of the vehicle head, and the wavy soft aluminum plate absorbs the impact force caused by the vehicle head again, so that the vehicle speed is reduced rapidly, the buffer capacity of the anti-collision guardrail of the highway is improved, and the use safety of the whole highway is improved.

Drawings

FIG. 1 is a schematic view of the overall construction of a highway crash barrier of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic view of the pull cord construction of the present invention;

in the figure: the guardrail comprises a guardrail column 1, a buffer sleeve 2, an outer sleeve 21, a baffle 211, an inner sleeve 22, a buffer column 3, an arc rib 31, a protective plate 4, a hard metal plate 41, a wave-shaped soft aluminum plate 42, an aluminum plate 43, a buffer pad 44, a rotating arm 5, a coil spring 51, an elastic component 6, a tension spring 61, a pull rope 62, an elastic rope 621, an elastic rubber sleeve 622, a steel wire rope 623, a surface skin 624, a sun-proof sleeve 7 and a cement seat 8.

Detailed Description

An expressway crash barrier according to the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1 and 2, the highway anti-collision guardrail comprises guardrail posts 1, a buffer sleeve 2, buffer posts 3, a guard plate 4, a coil spring 51, a rotating arm 5, an elastic part 6 and a sun-proof sleeve 7, wherein the guardrail posts 1 are fixed on the ground, two ends of each guardrail post 1 are provided with stepped holes, and the distance between every two adjacent guardrail posts 1 is 3.5-4.5 m; the buffer sleeve 2 is detachably arranged in a stepped hole of the guardrail column 1, and the buffer sleeve 2 and the guardrail column 1 are fastened through a fastener; the guardrail comprises a guardrail column 1, a buffer sleeve 2, a guard board 4 and a buffer column 3, wherein the buffer column 3 is embedded in the buffer sleeve 2, one end of the buffer column 3 is positioned in the buffer sleeve 2, the other end of the buffer column 3 extends out of the buffer sleeve 2, the end part of the buffer column 3 is fixedly connected with the guard board 4, and the guard board 4 is positioned on one side of the guardrail column 1 with a road; the plurality of rotating arms 5 are arranged, and the rotating arms 5 are sleeved on the guardrail posts 1; the coil spring 51 is sleeved between the rotating arm 5 and the guardrail column 1, the coil spring 51 is used for improving the rotating resistance of the rotating arm 5, the elastic part 6 is arranged between the rotating arms 5 on the adjacent guardrail columns 1, and the end part of the elastic part 6 is fastened with the rotating arm 5; the sun-proof sleeve 7 is sleeved on the elastic component 6, the sun-proof sleeve 7 is made of nylon, the sun-proof sleeve 7 is used for preventing the elastic component 6 from being exposed to heat and rain, and the sun-proof sleeve 7 prolongs the service life of the elastic component 6; wherein the content of the first and second substances,

the curved surface of the buffer column 3 is provided with an arc rib 31; the arc ribs 31 are positioned outside the buffer sleeve 2, and the convex surface of the arc ribs 31 faces the buffer sleeve 2. When the working, when the car hits the highway crash barrier, the locomotive contacts with backplate 4 earlier, backplate 4 absorbs the impact force that the locomotive brought at first, slow down the speed of a motor vehicle, cushion column 3 is crowded into in cushion collar 2, cushion column 3 and cushion collar 2 absorb the impact force that the locomotive brought, slow down the speed of a motor vehicle once more, when the impact force of car was too big, backplate 4 is bumped flatly, the laminating locomotive of the face of backplate 4, the convex one side of backplate 4 will support and lean on rotor arm 5 and elastomeric element 6, spring 51 atress is crimpled, spring 51 absorbs the impact force that the locomotive brought once more, rotor arm 5 slows down the speed of a motor vehicle, and simultaneously, elastomeric element 6 atress is elongated, elastomeric element 6 slows down the speed of a motor vehicle once more, finally make the car stop safely.

As shown in fig. 3, the buffer sleeve 2 comprises an outer sleeve 21 and an inner sleeve 22, the outer sleeve 21 is a metal sleeve, the outer sleeve 21 is in a stepped cylindrical shape, the inner diameter of the outer sleeve 21 gradually changes from one end to the other end, the maximum inner diameter of the outer sleeve 21 is matched with the maximum outer diameter of the buffer column 3, the maximum diameter of the buffer column 3 comprises the increased diameter of the arc-shaped rib 31, and a plurality of baffle pieces 211 which are connected into a whole are arranged at the large-end orifice of the inner hole of the outer sleeve 21; the blocking piece 211 is provided with a plurality of circles on the inner wall of the outer sleeve 21, the thickness of the blocking piece 211 is smaller than that of the arc-shaped rib 31, an inclined groove I is formed in the end part of the blocking piece 211, and the blocking piece 211 is used for blocking and clamping the arc-shaped rib 31; the inner sleeve 22 is a rubber sleeve, the outer wall of the inner sleeve 22 is matched with the inner wall of the outer sleeve 21, the inner diameter of the inner sleeve 22 is the same as the minimum outer diameter of the buffer column 3, and an inclined groove II is arranged at the sleeve opening of the inner sleeve 22. The during operation, when 2 atress of cushion collar, multilayer separation blade 211 blocks arc muscle 31 layer upon layer, the thickness of separation blade 211 is less than the thickness of arc muscle 31, can make separation blade 211 change to warp and absorb the impact force that arc muscle 31 brought, the slope mouth one of separation blade 211 tip can make arc muscle 31 pass separation blade 211 more easily, it is big because of the atress to avoid arc muscle 31, the impact velocity is fast and by the rupture, pass separation blade 211 back layer upon layer when arc muscle 31, arc muscle 31 begins to get into in endotheca 22, it can make things convenient for arc muscle 31 to get into endotheca 22 more easily when contacting endotheca 22 to set up oblique groove two, endotheca 22 has the cushioning effect to arc muscle 31, be favorable to slowing down the speed of a motor vehicle, reduce the harm that the vehicle.

As shown in fig. 2, the elastic component 6 includes a tension spring 61 and a pull rope 62, and an end of the tension spring 61 is fixedly connected with an end face of the rotating arm 5; the end of the pulling rope 62 is inserted into the end face of the rotating arm 5, and the pulling rope 62 and the rotating arm 5 are fastened through a fastener. When the vehicle-mounted device works, the rotating arm 5 is stressed and extruded, the rotating arm 5 pulls the tension spring 61 and the pull rope 62, the tension spring 61 is stretched, the tension spring 61 can slow down the rotating angle of the rotating arm 5, so that the vehicle speed is slowed down and reduced again when a vehicle collides against the rotating arm 5, the pull rope 62 is also tightened, the rotating arm 5 is tensioned by the pull rope 62 under stress, the vehicle-mounted device has a buffering effect on the collision of the vehicle head, the harm caused by the vehicle collision is reduced, and the safety of the vehicle running on a highway is improved.

As shown in fig. 2 and 4, the pull rope 62 includes an elastic rope 621, an elastic rubber sleeve 622, a steel wire rope 623, and a skin 624; the elastic rope 621 is positioned on the inner layer, and the elastic rope 621 is made of a latex yarn woven by a PP material or an EPDM material; the elastic rubber sleeve 622 is wrapped outside the elastic rope 621; at least three steel wire ropes 623 are arranged, the steel wire ropes 623 are positioned outside the elastic rubber sleeve 622, the diameter of each steel wire rope 623 is smaller than one third of that of each elastic rope 621, and the steel wire ropes 623 are in a loose state before being stressed; the elastic rope 621, the elastic rubber sleeve 622 and the steel wire rope 623 are all wrapped by the skin 624, and the skin 624 is made of polyvinyl chloride (PVC) material. During operation, stay cord 62 atress is pulled, skin 624 of stay cord 62 is taut, elastic cord 621 is elongated immediately, elastic cord 621 has preliminary pulling force effect to rotor arm 5, after elastic cord 621 was elongated, wire rope 623 is taut, wire rope 623 has cushioning effect to rotor arm 5, the impact force that the car brought can be alleviated again to the pulling force of rotor arm 5 to wire rope 623 and elastic cord 621, the occurence of failure vehicle receives cushioning effect in the short time, be favorable to improving driver's degree of safety.

As shown in fig. 3, the arc rib 31 is provided with a plurality of rings, which are uniformly distributed on the cylindrical surface of the buffer column 3, and the heights of the plurality of rings of arc ribs 31 are gradually reduced along the direction of the convex surface; the buffer column 3 is provided with a first spring which is positioned at the side of the minimum arc rib 31. When the buffer column is in operation, the buffer column 3 is pressed into the buffer sleeve 2, the multiple circles of arc-shaped ribs 31 on the buffer column 3 sequentially push away the separation blades 211 from small to large to extrude towards the inner sleeve 22, and part of the arc-shaped ribs 31 are pressed into the inner sleeve 22; at many rings arc muscle 31 extrusion and break away separation blade 211 in-process, each ring arc muscle 31 will be obstructed, and obstructed dynamics increases gradually, make the cushioning effect of cushion column 3 improved, after partial arc muscle 31 extrudees to endotheca 22, the cushioning effect of cushion column 3 will further increase, the cushioning effect of cushion column 3 with cushion collar 2 has been improved, the guard action of highway anticollision barrier has been improved, and then whole highway's safety in utilization has been improved.

As shown in fig. 3, the protector plate 4 includes a hard metal plate 41, a wave-shaped soft aluminum plate 42, an aluminum plate 43, and a cushion pad 44, and the hard metal plate 41 is provided with a concave portion; the aluminum plate 43 is provided with a convex part, the aluminum plate 43 and the hard metal plate 41 are in inserted fit with each other, so that the aluminum plate 43 and the hard metal plate 41 are convenient to mount, and a cavity is formed between the inserted aluminum plate 43 and the hard metal plate 41; the wavy soft aluminum plate 42 is positioned in the cavity between the aluminum plate 43 and the hard metal plate 41, so that the installation of the wavy soft aluminum plate 42 is facilitated; a plurality of grooves are formed in the plate surface on one side of the aluminum plate 43; the buffer pad 44 is embedded on the surface of the aluminum plate 43, and the buffer pad 44 is made of polyurethane foam energy dissipation material or composed of a PE outer layer and a PU foam inner layer filled in the PE outer layer. When the automobile runs, when the automobile collides against the guard plate 4, the automobile head firstly contacts with the buffer cushion 44, the buffer cushion 44 is compressed, the buffer cushion 44 can reduce the deformation of the automobile head, the buffer cushion 44 is used for protecting the automobile head, when the automobile continues to extrude, the buffer column 3 is extruded into the buffer sleeve 2, when the impact force of the automobile is overlarge, the aluminum plate 43 is pressed to deform, the aluminum plate 43 can absorb part of the impact force brought by the automobile head, the wavy soft aluminum plate 42 can absorb the impact force brought by the automobile head again, so that the automobile speed is reduced rapidly, meanwhile, the wavy soft aluminum plate 42 can generate prestress on the hard metal plate 41 and the aluminum plate 43, the buffer effect of the wavy soft aluminum plate 42 can reduce the possibility that the hard metal plate 41 and the aluminum plate 43 are broken, the hard metal plate 41 and the aluminum plate 43 are effectively protected, and when the buffer cushion 44, the aluminum plate 43, the wavy soft aluminum plate 42 and the hard, Aluminum plate 43, wave soft aluminum plate 42 and hard metal plate 41 will laminate on the locomotive, play protection and cushioning effect to the locomotive, under the impact of locomotive afterforce, the deformation of locomotive and rotor arm 5 contact will reduce, reduce the impaired degree of locomotive, and simultaneously, blotter 44, aluminum plate 43, wave soft aluminum plate 42 and hard metal plate 41 form a plurality of layers, still there is the remaining space, can continue the compression, the impact force of locomotive has effectively been cushioned, reduce the speed of a motor car or make the motor car stop, highway crash barrier's guard action has been improved, whole highway's safety in utilization has been improved.

As shown in fig. 1 and 3, a cement seat 8 is arranged beside the guardrail column 1; the cement seat 8 is positioned on the reverse side of one side, with the road, of the guardrail column 1, the cement seat 8 is in a right-angled trapezoid shape, and the right-angled trapezoid-shaped cement seat 8 has stability; the bottom surface of the cement seat 8 is attached to the ground. The during operation, the laminating of cement seat 8 and guardrail post 1, cement seat 8 firmly supports guardrail post 1, when having the vehicle to hit the highway anticollision barrier on, cement seat 8 very strong guardrail post 1 makes guardrail post 1 be difficult for warping because of the pulling force that receives backplate 4 and rotor arm 5, the fixity of guardrail post 1 has effectively been kept, make the highway anticollision barrier that is hit difficult to be collided and break away from, the guard action of highway anticollision barrier has effectively been improved, whole highway's safety in utilization has been improved.

The specific working process is as follows:

when the automobile crash barrier works, when an automobile collides against the highway crash barrier, the automobile head contacts with the protective plate 4 firstly, the buffer pad 44 is compressed, the buffer pad 44 can reduce the deformation of the automobile head, the buffer pad 44 is used for protecting the automobile head, the automobile head is continuously extruded, the buffer column 3 is pressed into the buffer sleeve 2, the multiple circles of arc-shaped ribs 31 on the buffer column 3 sequentially break the blocking pieces 211 from small to large to extrude towards the inner sleeve 22, the arc-shaped ribs 31 are blocked by the multiple layers of blocking pieces 211 layer by layer, the thickness of the blocking pieces 211 is smaller than that of the arc-shaped ribs 31, the blocking pieces 211 can be deformed more easily to absorb the impact force brought by the arc-shaped ribs 31, the arc-shaped ribs 31 can more easily pass through the blocking pieces 211 by the slope openings at the end parts of the blocking pieces 211, the arc-shaped ribs 31 are prevented from being broken due to large stress and high impact speed, and each circle of arc-shaped ribs 31 are blocked and the, so that the cushioning effect of the cushion columns 3 is improved; when the arc ribs 31 penetrate through the layers of the blocking pieces 211 in an arc shape, the arc ribs 31 start to enter the inner sleeve 22, the slope openings II can facilitate the arc ribs 31 to easily enter the inner sleeve 22 when contacting the inner sleeve 22, and the inner sleeve 22 has a buffering effect on the arc ribs 31, so that the speed of the vehicle is favorably slowed down, and the harm caused by vehicle collision is reduced; when the impact force of the vehicle is too large, the aluminum plate 43 is pressed to deform, the aluminum plate 43 absorbs part of the impact force brought by the vehicle head, the wave-shaped soft aluminum plate 42 absorbs the impact force brought by the vehicle head again, the vehicle speed is reduced rapidly, meanwhile, the wave-shaped soft aluminum plate 42 generates prestress on the hard metal plate 41 and the aluminum plate 43, the buffering effect of the wave-shaped soft aluminum plate 42 can reduce the possibility that the hard metal plate 41 and the aluminum plate 43 are broken, the hard metal plate 41 and the aluminum plate 43 are effectively protected, when the buffering cushion 44, the aluminum plate 43, the wave-shaped soft aluminum plate 42 and the hard metal plate 41 are all bent by the vehicle head, the buffering cushion 44, the aluminum plate 43, the wave-shaped soft aluminum plate 42 and the hard metal plate 41 are attached to the vehicle head, the vehicle head is protected and buffered, the deformation of the vehicle head in contact with the rotating arm 5 is reduced under the impact of the vehicle head residual, The aluminum plates 43, the wave-shaped soft aluminum plates 42 and the hard metal plates 41 form a plurality of layers, and a space is left, so that the aluminum plates can be continuously compressed, the impact force of the head of the vehicle is effectively buffered, the speed of the vehicle is reduced or the vehicle stops, the protection effect of the anti-collision guardrail of the highway is improved, and the use safety of the whole highway is improved; when the protective plate 4 wrapping the head of the vehicle contacts with the rotating arm 5, the rotating arm 5 pulls the tension spring 61 and the pull rope 62, the tension spring 61 is stretched, the tension spring 61 can slow down the rotating angle of the rotating arm 5, so that the vehicle speed is slowed down again when the vehicle collides against the rotating arm 5, the shock to the head of the vehicle is buffered, the pull rope 62 is also tightened, the pull rope 62 is stressed to tighten the rotating arm 5, the skin 624 of the pull rope 62 is tightened, the elastic rope 621 is stretched, the elastic rope 621 has a primary tension effect on the rotating arm 5, when the elastic rope 621 is stretched, the steel wire rope 623 is tensioned, the steel wire rope 623 has a buffer effect on the rotating arm 5, the tension of the steel wire rope 623 and the elastic rope 621 on the rotating arm 5 can relieve the impact force brought by the vehicle again, the buffer has a buffer effect on the collision of the vehicle head, reduces the harm caused by the collision of the vehicle, and is beneficial to improving the running safety of the vehicle on the highway; simultaneously, whole in-process, cement seat 8 firmly supports guardrail post 1, and when having the vehicle to hit the highway anticollision barrier on, cement seat 8 power is very strong guardrail post 1 and is difficult for being out of shape because of receiving backplate 4 and rotor arm 5's pulling force, has effectively kept the fixity of guardrail post 1 for the highway anticollision barrier who is hit is difficult to be hit and breaks away from, has effectively improved the guard action of highway anticollision barrier, has improved whole highway's safety in utilization.

(A) In the above embodiment, the rotation of the swing arm is buffered by the compression of the coil spring between the swing arm and the guardrail post; but not limited to, a bulge can be directly added between the rotating arm and the guardrail post, and the friction coefficient of the rotating arm and the guardrail post is improved to improve the buffer capacity of the rotating arm.

Industrial applicability

According to the invention, the over-guard plate absorbs the impact force brought by the vehicle head and slows down the vehicle speed; impact force brought by the vehicle head is absorbed by gradually extruding the buffer columns into the buffer sleeve, and the vehicle speed is slowed down again; the speed of the vehicle is slowed down by the deformation of the guard plate and the extrusion of the rotating arm and the elastic component, and finally the vehicle is safely stopped; the anti-collision buffer capacity of the highway anti-collision guardrail is improved, and the use safety of the whole highway is further improved; the highway crash barrier is therefore useful in the field of barrier technology.

Claims

1. The utility model provides a highway anticollision barrier, includes guardrail post (1), cushion collar (2), cushion collar (3), backplate (4), wind spring (51), rotor arm (5), elastomeric element (6) and sun-proof cover (7), guardrail post (1) is fixed in subaerially, and the both ends of guardrail post (1) are provided with shoulder hole, its characterized in that: the buffer sleeve (2) is detachably arranged in a stepped hole of the guardrail column (1), and the buffer sleeve (2) and the guardrail column (1) are fastened through a fastener; the buffer column (3) is inserted into the buffer sleeve (2), one end of the buffer column (3) is positioned in the buffer sleeve (2), the other end of the buffer column (3) extends out of the buffer sleeve (2), and the end part of the buffer column (3) is fixedly connected with the guard plate (4); the guard plate (4) is positioned on one side of the guardrail column (1) with the road; a plurality of rotating arms (5) are arranged, and the guardrail column (1) is sleeved with the rotating arms (5); the coil spring (51) is sleeved between the rotating arm (5) and the guardrail column (1); the elastic component (6) is arranged between the rotating arms (5) on the adjacent guardrail columns (1), and the end parts of the elastic component (6) are fastened with the rotating arms (5); the sun-proof sleeve (7) is sleeved on the elastic part (6); wherein the content of the first and second substances,

the curved surface of the buffer column (3) is provided with an arc rib (31); the arc-shaped ribs (31) are positioned outside the buffer sleeve (2), and the convex surfaces of the arc-shaped ribs (31) face the buffer sleeve (2).

2. A highway crash barrier according to claim 1, wherein: the buffer sleeve (2) comprises an outer sleeve (21) and an inner sleeve (22), the outer sleeve (21) is a metal sleeve, the outer sleeve (21) is in a stepped cylinder shape, the inner diameter of the outer sleeve (21) is gradually changed from one end to the other end, the diameter of a large-end orifice of an inner hole of the outer sleeve (21) is matched with the maximum outer diameter of the buffer column (3), and a plurality of baffle pieces (211) which are connected into a whole are arranged at the large-end orifice of the inner hole of the outer sleeve (21); the blocking piece (211) is provided with a plurality of circles on the inner wall of the outer sleeve (21), the thickness of the blocking piece (211) is smaller than that of the arc-shaped rib (31), and the end part of the blocking piece (211) is provided with a first inclined groove; the inner sleeve (22) is a rubber sleeve, the outer wall of the inner sleeve (22) is matched with the inner wall of the outer sleeve (21), the inner diameter of the inner sleeve (22) is the same as the minimum outer diameter of the buffer column (3), and an inclined groove II is formed in the sleeve opening of the inner sleeve (22).

3. A highway crash barrier according to claim 1, wherein: the elastic component (6) comprises a tension spring (61) and a pull rope (62), and the end part of the tension spring (61) is fixedly connected with the end face of the rotating arm (5); the end part of the pull rope (62) is inserted into the end surface of the rotating arm (5), and the pull rope (62) and the rotating arm (5) are fastened through a fastener.

4. A highway crash barrier according to claim 3, wherein: the pull rope (62) comprises an elastic rope (621), an elastic rubber sleeve (622), a steel wire rope (623) and a skin (624); the elastic rope (621) is positioned on the inner layer; the elastic rubber sleeve (622) is wrapped outside the elastic rope (621); at least three steel wire ropes (623) are arranged, and the steel wire ropes (623) are positioned outside the elastic rubber sleeve (622); the elastic rope (621), the elastic rubber sleeve (622) and the steel wire rope (623) are all wrapped in the outer skin (624).

5. A highway crash barrier according to claim 2, wherein: the arc-shaped ribs (31) are provided with a plurality of rings which are uniformly distributed on the cylindrical surface of the buffer column (3), and the heights of the arc-shaped ribs (31) are gradually reduced along the direction of the outer convex surface.

6. A highway crash barrier according to claim 1, wherein: the protective plate (4) comprises a hard metal plate (41), a wave-shaped soft aluminum plate (42), an aluminum plate (43) and a buffer pad (44), and a concave part is arranged on the hard metal plate (41); the aluminum plate (43) is provided with a convex part, the aluminum plate (43) and the hard metal plate (41) are in inserted fit with each other, and a cavity is formed between the inserted aluminum plate (43) and the hard metal plate (41); the wavy soft aluminum plate (42) is positioned in a cavity between the aluminum plate (43) and the hard metal plate (41); a plurality of grooves are formed in the plate surface on one side of the aluminum plate (43); the buffer pad (44) is embedded on the plate surface of the aluminum plate (43).

7. A highway crash barrier according to claim 1, wherein: a cement seat (8) is arranged beside the guardrail column (1); the cement seat (8) is positioned on the reverse side of the side, with the road, of the guardrail column (1), and the cement seat (8) is in a right-angled trapezoid shape; the bottom surface of the cement seat (8) is attached to the ground.