CN211340580U

CN211340580U - Novel anti-collision waveform guardrail for highway

Info

Publication number: CN211340580U
Application number: CN201921784485.2U
Authority: CN
Inventors: 曾卡芊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-08-25
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a novel crashproof wave form guardrail of highway, include: the two square waveform wave beams are connected through two groups of tensile damping springs, and the two groups of tensile damping springs are connected through screws with safety bolts; when a vehicle collides with the corrugated guardrail, the corrugated beam deforms and expands outwards due to the stress of the spring so as to absorb most of collision energy. The anti-collision corrugated guardrail comprises an anti-collision corrugated guardrail upright post, wherein compression springs are wound on the periphery of the anti-collision corrugated guardrail upright post, an outer cover is arranged at the top of the anti-collision corrugated guardrail upright post, and the outer cover is connected with a square corrugated beam through a corrugated beam fixing frame; the part of the outer cover surface facing the expressway is provided with a columnar rubber wheel which is parallel to the anti-collision waveform guardrail upright post, and the columnar rubber wheel is provided with a fixed shaft and a bearing. Through the design, partial collision energy can be absorbed, the moving direction of a collided vehicle can be changed, and adverse effects of transverse rotation or rolling of the vehicle and the like can be avoided.

Description

Novel anti-collision waveform guardrail for highway

Technical Field

The utility model relates to a highway guardrail, concretely relates to novel crashproof wave form guardrail of highway.

Background

With the development of social economy and the improvement of living standard of people, the family car gradually enters every family. However, with the increase of vehicles, traffic accidents occur more frequently, the number of deaths is high, the number of deaths of traffic accidents in China per year is increased from hundreds of people in 1950 to hundreds of thousands of people in 2004, and today, the number of deaths of traffic accidents is increased to hundreds of thousands of people, and huge losses and pain injuries are brought to countless families. In the face of such a trend, it is highly desirable to enhance the safety of road running. The expressway is a main driving road and is also a section with multiple accidents, particularly, when a vehicle is in an emergency and avoids the vehicle or is out of control to rush out of the road, the accident inevitably occurs, the safety of road protection facilities is of great importance at the moment, and the safety of the road is determined to a great extent by using the expressway protective guard as a facility for protecting the vehicle from driving.

At present, the protective guards of the expressway in China are all arranged on two sides of a road, four rows of bidirectional roads are arranged in total, the bidirectional roads are formed by connecting corrugated steel plates into strips, and the steel plates of the standard guardrail are mostly in the size: the thickness is 0.3cm, the unfolding width is 48cm, and the length of a single section is 400 cm. The steel plate is mainly made of common carbon structural steel, and the steel is a new steel type in development and research at present due to moderate carbon content and good comprehensive performance, so that the strength, the plastic energy consumption value, the welding performance and other properties of the steel plate are well matched, and a good effect is achieved. The line of the lowest guard rail is about 80cm from the ground, and the line of the highest and widened guard rail is about 120cm from the ground. The height design of the guard rail is very important, and the guard rail has the strength of preventing the vehicle from breaking through, has the height of preventing heavy vehicles with higher gravity centers from going out from the upper part of the corrugated beam (cross beam), and has the possibility of preventing small vehicles from drilling out from the lower part of the corrugated beam. Each section of guard rail is supported and fixed by a steel upright post, and the two sections of guard rail steel plates are connected by screws from head to tail and are connected to the upright posts through steel fixing frames (buffer plates), so that the safety protection performance is better.

The function principle of the guard rail is to convert the kinetic energy of the vehicle into the plastic deformation energy consumption of the guard rail. The vehicles running at high speed have great kinetic energy, when an emergency occurs, the vehicles can rush to the protective guard for avoiding, losing control and the like, and the protective guard of the expressway has the function of avoiding severe collision and casualties of the vehicles. When a car collides against a reinforced concrete hard wall at a high speed, the car can stop instantly, and at the moment, the huge kinetic energy of the car is mostly converted into energy for damaging the car, so that the car is greatly damaged. If the reinforced concrete wall is replaced by a metal wall similar to hard rubber, the deceleration process of the vehicle is greatly slowed down, most kinetic energy of the vehicle is converted into the energy of metal plastic deformation and is gradually consumed, and therefore damage to the vehicle and personnel is reduced. The guard rail of the expressway is a safety facility for playing the role of buffering.

A good guard rail should have a good function of reducing collision energy and be able to correct the trajectory of the vehicle in order to protect the safety of the vehicle and passengers from runaway, reducing the severity of the accident. In the collision process of a vehicle and the waveform guardrail, the waveform beam (cross beam), the upright post, the foundation soil and the like are taken as a whole to resist the impact force of the vehicle together, and most collision energy is absorbed through the deformation of the waveform beam, the upright post and the foundation soil. The corrugated beam is the most important component of the guard rail structure, and has the advantages of high strength, high impact resistance, reasonable section shape, impact energy absorption, change of the motion direction of an impacted vehicle, and avoidance of adverse effects of transverse rotation or rolling of the vehicle. The wave-shaped cross-section beam has the above-described characteristics, and absorbs energy by gradual expansion of the corrugations at the time of collision. The deeper the corrugation of the corrugated beam (cross beam), the larger the plastic deformation of the section, and the more energy is absorbed, which is more beneficial to protecting personal safety. Meanwhile, the deeper the corrugation of the cross beam is, the smaller the contact area between the vehicle and the cross beam is, so that under the same friction condition, the smaller the friction force between the vehicle and the waveform guardrail is, namely the longitudinal force acting along the longitudinal plane of the guardrail is reduced, thereby being beneficial to correcting the motion track of the vehicle and reducing the severity of accidents.

Through the understanding and the introduction of the importance and the action principle of the highway waveform guardrail, the highway waveform guardrail can not reduce the occurrence of accidents, but can greatly reduce the vehicle damage and the casualties caused by the accidents through new design and continuous improvement. With the further development of economy, the waveform guardrail is made of materials and has a higher safety requirement in structural design, and the conventional expressway waveform guardrail cannot completely meet the requirement on vehicle safety when a vehicle is in an accident.

Therefore, a new type of anti-collision waveform guardrail needs to be designed to meet the requirements of vehicle safety to the maximum extent.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect that the background art exists, the utility model aims to provide a novel crashproof wave form guardrail of highway.

In order to achieve the above object, the utility model adopts the following technical scheme:

novel crashproof wave form guardrail of highway includes:

each wave-shaped beam of the wave-shaped guardrail is designed into two square wave-shaped beams, namely the two square wave-shaped beams are divided into two parts from the middle, the two square wave-shaped beams are connected through two groups of tensile damping springs, and the two groups of tensile damping springs are locked and connected through screws with safety bolts; through the design, when a vehicle collides with the corrugated guardrail, the corrugated beam deforms and expands outwards due to the stress of the spring, so that most of collision energy is absorbed.

Furthermore, the surface of the square waveform beam is provided with a rubber layer, the rubber layer is arranged on the surface of the square waveform beam through an adhesive layer, and the surface of the rubber layer is coated with a light-reflecting warning layer; through the design, due to the flexibility of the rubber layer, when a vehicle collides with the waveform guardrail, a part of collision energy can be absorbed and consumed, so that damage to the vehicle and personnel is reduced.

Design into solid rubber clavate to crashproof wave form guardrail stand by hollow metal tube, the material of rubber stick is mainly made by junked tire plastics material, and there is reflection of light warning layer at crashproof wave form guardrail stand surface covering, and twine crashproof wave form guardrail stand with the resistance to compression spring circumference, through above-mentioned design, when the vehicle collided with the wave form guardrail, resistance to compression spring and rubber stick will outwards be out of shape the expansion simultaneously, the most collision energy of vehicle will be transmitted into plastic deformation's energy and is gradually consumed.

Furthermore, a metal outer cover is arranged at the top of the anti-collision corrugated guardrail upright post and is connected with the square corrugated beam through a corrugated beam fixing frame;

a columnar rubber wheel parallel to the anti-collision waveform guardrail upright post is arranged at the part of the metal outer cover facing the expressway, and the columnar rubber wheel is provided with a fixed shaft and a bearing; through the design, partial collision energy can be absorbed, the moving direction of a collided vehicle can be changed, and adverse effects of transverse rotation or rolling of the vehicle and the like can be avoided.

The utility model discloses beneficial effect:

through wave form guardrail global design again and after improving, crashworthiness has strengthened greatly, and factor of safety has improved greatly. When a vehicle collides with the anti-collision square wave-shaped guardrail, most kinetic energy of the vehicle is instantly converted into the energy of the telescopic deformation of the wave-shaped guardrail and is gradually consumed due to the self plastic deformation energy consumption action of the wave-shaped beam with the tensile damping spring, the solid rubber rod with the compression spring and the columnar rubber wheel, so that the damage to the vehicle and personnel is greatly reduced. Moreover, as long as the vehicle is not in a particularly serious collision, the anti-collision square-wave guardrail can be basically repaired by itself, so that the cost is saved, and the waste caused by the fact that the guardrail is easily damaged by collision in the prior art is avoided.

The anti-collision square-wave guardrail designed integrally has a simple and scientific structure, is convenient to install and can be used for tightening screws; because the rubber rod or the columnar rubber wheel is made of waste tires and other materials, the rubber rod or the columnar rubber wheel is the same as a spring, has better anti-collision performance, lower cost and no waste, and can be massively produced and used for the construction of the highway.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a front sectional view of the overall design of the novel anti-collision wave-shaped guardrail for the highway of the utility model;

FIG. 2 is a side sectional view of the corrugated beam of the present invention;

fig. 3 is a side sectional view of the novel anti-collision wave-shaped guardrail for the highway;

FIG. 4 is a side sectional view of the crash waveform guardrail post of the present invention;

fig. 5 is a front view of the corrugated beam of the present invention;

fig. 6 is a front sectional view of the tensile damping spring of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, the present embodiment provides a novel crash-proof waveform guard bar for a highway, including:

each wave-shaped beam of the wave-shaped guardrail is designed into two square wave-shaped beams 1, namely, the wave-shaped beams are divided into two parts from the middle, and the two square wave-shaped beams 1 are connected through two groups of tensile damping springs 2, specifically, referring to fig. 5, the square wave-shaped beams 1 are provided with wave-shaped beam screw holes 1.1 corresponding to spring screw holes 2.1 and upright post connecting screw holes 1.2 corresponding to upright posts 4 of the anti-collision wave-shaped guardrail, and are connected and fixed through spring screw holes 2.1 which are arranged on the tensile damping springs 2 and wave-shaped beam screw holes 1.1 on the square wave-shaped beams 1 by screws in a penetrating way; the two groups of tensile damping springs 2 are locked and connected through screws 3 with safety bolts; through the above design, when a vehicle collides with the corrugated guard rail, the corrugated beam 1 is deformed and expanded outward by the force of the spring, thereby absorbing most of the collision energy.

Further, the surface of the square waveform wave beam 1 is provided with a rubber layer 13, the rubber layer 13 is arranged on the surface of the square waveform wave beam 1 through an adhesive layer 14, and the surface of the rubber layer 13 is coated with a light-reflecting warning layer 15; with the above design, due to the flexibility of the rubber layer 13, when a vehicle collides with the corrugated guard rail, a part of the collision energy can be absorbed and consumed, thereby reducing damage to the vehicle and personnel.

The anti-collision waveform guardrail upright post 4 arranged on the upright post base 17 is designed into a solid rubber rod shape by a hollow metal tube, the material of the rubber rod is mainly made of waste tire plastic materials, and the surface of the anti-collision waveform guardrail upright post 4 is covered with a light-reflecting warning layer which is the same as the surface of the rubber layer 13 which is covered with the light-reflecting warning layer 15; and the whole anti-collision waveform guardrail upright post 4 is wound by the compression spring 5, through the design, when a vehicle collides with the waveform guardrail, the compression spring 5 and the rubber rod can deform and expand outwards at the same time, and most collision energy of the vehicle can be transferred into plastic deformation energy to be gradually consumed.

Further, a metal outer cover 6 is arranged at the top of the anti-collision corrugated guardrail upright post 4, and the metal outer cover 6 is connected with the square corrugated beam 1 through a corrugated beam fixing frame 7; specifically, referring to fig. 2 and 3, the wave beam fixing bracket 7 is connected to the square wave beam 1 by wave beam fixing screws 16.

A columnar rubber wheel 10 parallel to the anti-collision waveform guardrail upright post 4 is arranged at the part of the metal outer cover 6 facing the expressway, and the columnar rubber wheel 10 is provided with a fixed shaft 11 and a bearing 12; through the design, partial collision energy can be absorbed, the moving direction of a collided vehicle can be changed, and adverse effects of transverse rotation or rolling of the vehicle and the like can be avoided.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The invention is not limited to the embodiments described herein, but is capable of other embodiments with obvious modifications and variations, including those shown in the drawings and described herein. Therefore, the equivalent changes made according to the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a novel crashproof wave form guardrail of highway which characterized in that includes:

the two square waveform wave beams are connected through two groups of tensile damping springs, and the two groups of tensile damping springs are connected through screws with safety bolts;

the anti-collision corrugated guardrail comprises an anti-collision corrugated guardrail upright post, wherein compression springs are wound on the periphery of the anti-collision corrugated guardrail upright post, an outer cover is arranged at the top of the anti-collision corrugated guardrail upright post, and the outer cover is connected with a square corrugated beam through a corrugated beam fixing frame;

the part of the outer cover surface facing the expressway is provided with a columnar rubber wheel which is parallel to the anti-collision waveform guardrail upright post, and the columnar rubber wheel is provided with a fixed shaft and a bearing.

2. The novel crash-proof corrugated guardrail for express highway according to claim 1 wherein the square wave shaped beam is provided with a rubber layer on the surface thereof.

3. The novel anti-collision corrugated guardrail for the expressway as claimed in claim 2, wherein the rubber layer is arranged on the surface of the square-wave corrugated beam through an adhesive layer.

4. The novel waveform guardrail for expressway of claim 2 or 3, wherein the rubber layer is coated with a reflective warning layer on the surface.

5. The novel waveform guardrail of claim 1, wherein the upright post of the waveform guardrail is in a shape of a solid rubber rod, and the surface of the upright post is covered with a reflective warning layer.

6. The novel waveform guardrail of claim 1, wherein the outer cover on the top of the upright post of the waveform guardrail is a metal outer cover.