Modular quick-connect energy-absorbing road barrier

Abstract

The utility model relates to a modularization quick -connection energy -absorbing type road guardrail, including a plurality of guardrail units, every guardrail unit includes two columns, is equipped with a plurality of cross beams between two columns, and the bottom of column is equipped with the base, and one side column outside every guardrail unit is equipped with male head, and the other side column outside is equipped with female head, and male head and female head all are equipped with connecting hole, and the detachable connecting pin is inserted in connecting hole, the cross beam includes square steel pipe, and the square steel pipe is filled with honeycomb aluminium core, and the thickness of square steel pipe is less than 3mm, the utility model has the advantages of convenient and fast assembling and replacement, good energy -absorbing, reduce the severity of the accident, and have good warning effect at night or in rain and fog weather.

Description

Technical Field

[0001] This utility model relates to the field of road traffic facilities, specifically a modular, quick-connect energy-absorbing road guardrail. Background Technology

[0002] Guardrails are frequently used on urban roads, but existing guardrails have the following problems: 1. They are too rigid and cannot absorb enough impact energy from out-of-control vehicles, which may lead to serious damage to vehicles or significant impact injuries to drivers and passengers; some energy-absorbing guardrails have complex structures and are expensive; 2. Traditional guardrails mainly serve as isolation and protection, and their warning function is relatively weak, especially at night or in bad weather; 3. When some guardrails are damaged in an accident, traditional guardrails often need to be replaced as a whole or in large sections. The disassembly and installation process is cumbersome and time-consuming, affecting traffic efficiency and resulting in high maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a modular, quick-connect energy-absorbing road guardrail.

[0004] The specific solution of this utility model is as follows: a modular quick-connect energy-absorbing road guardrail, comprising several guardrail units, each guardrail unit comprising two posts, several crossbeams between the two posts, a base at the bottom of the posts, a male head on the outer side of one side of each guardrail unit post, and a female head on the outer side of the other side of the post, both the male and female heads having connecting holes, into which detachable connecting pins are inserted; the crossbeams comprise square steel tubes, the square steel tubes being filled with honeycomb aluminum cores, the thickness of the square steel tubes being less than 3mm.

[0005] Furthermore, the column has an internal cavity filled with a honeycomb aluminum core, and the outer shell thickness of the column is less than 3mm.

[0006] Furthermore, the upper ends of the column are provided with high-brightness reflective sheets or reflective coatings on both sides.

[0007] Furthermore, the surface of the guardrail unit is provided with an anti-corrosion coating.

[0008] This utility model has the following beneficial effects: 1. The disassembly and installation process is simple and quick, which greatly shortens the maintenance time, reduces traffic interference, and significantly reduces maintenance costs; 2. The crossbeams and columns adopt a hollow structure and are filled with honeycomb aluminum core, which has a strong energy absorption effect, reduces the severity of accidents, and better protects the safety of vehicles and pedestrians on the road; 3. By setting high-brightness reflective sheets or reflective coatings, the visibility of the guardrail is significantly improved at night, in rainy and foggy weather, and accidents are prevented. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0010] Figure 2 yes Figure 1 The main view;

[0011] Figure 3 yes Figure 2 AA view;

[0012] Figure 4 yes Figure 2 BB view;

[0013] In the diagram: 1. Crossbeam; 2. Column; 3. Base; 4. High-brightness reflector; 5. Connecting pin; 6. Male connector; 7. Female connector; 8. Honeycomb aluminum core. Detailed Implementation

[0014] See Figure 1-4 This embodiment is a modular, quick-connect energy-absorbing road guardrail, comprising several guardrail units. Each guardrail unit includes two posts 2, with several crossbeams 1 between the two posts 2. A base 3 is provided at the bottom of each post 2. One side of each guardrail unit's post 2 has a male connector 6, and the other side has a female connector 7. Both the male and female connectors 6 and 7 have connecting holes into which detachable connecting pins 5 are inserted. The crossbeams 1 consist of square steel tubes filled with honeycomb aluminum cores 8, and the thickness of the square steel tubes is less than 3mm. Furthermore, each post 2 has an internal cavity filled with honeycomb aluminum cores 8, and the outer shell thickness of the post 2 is less than 3mm. Furthermore, high-brightness reflective sheets 4 or reflective coatings are provided on both sides of the upper end of each post 2. Furthermore, the surface of each guardrail unit is coated with an anti-corrosion layer. This utility model has a simple manufacturing process. First, the outer shell of the column 2 is bent into shape. Then, honeycomb aluminum core 8 is filled inside the column 2. Finally, both ends of the column 2 are closed. Then, a crossbeam 1 is welded between two columns 2. Before welding the crossbeam 1, the square tube of the crossbeam 1 is filled with honeycomb aluminum core 8. Finally, the base 3, male connector 6, and female connector 7 are installed. The modular design facilitates industrial mass production and reduces the cost per unit. When installing on the road, each guardrail unit is placed in its position. The male connector 6 and female connector 7 are connected between two adjacent guardrail units. After connection, the connecting pin 5 is inserted. This utility model has a relatively simple structure, which facilitates transportation, storage, and on-site assembly, improving construction efficiency. This utility model sets the outer shell thickness of the crossbeam 1 and column 2 to less than 3mm and fills it with honeycomb aluminum core 8. When impacted, it is easy to deform, thereby enhancing the energy absorption of the guardrail when hit by a vehicle. When a traffic accident occurs, it can effectively absorb collision energy and reduce the severity of the accident.

Claims

1. A modular, quick-connect energy-absorbing road guardrail, characterized in that: It includes several guardrail units, each guardrail unit includes two posts, several crossbeams are provided between the two posts, and a base is provided at the bottom of the posts. Each guardrail unit has a male head on the outer side of one post and a female head on the outer side of the other post. Both the male and female heads have connecting holes, and detachable connecting pins are inserted into the connecting holes. The crossbeams include square steel tubes filled with honeycomb aluminum cores. The thickness of the square steel tubes is less than 3mm.

2. The modular quick-connect energy-absorbing road guardrail according to claim 1, characterized in that: The column has an internal cavity filled with a honeycomb aluminum core, and the outer shell thickness of the column is less than 3mm.

3. The modular quick-connect energy-absorbing road guardrail according to claim 1, characterized in that: The upper ends of the columns are provided with high-brightness reflective sheets or reflective coatings on both sides.

4. A modular, quick-connect energy-absorbing road guardrail according to claim 1, characterized in that: The guardrail unit has an anti-corrosion coating on its surface.

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