Expressway anti-collision guardrail structure

Abstract

The utility model discloses an anti-collision guardrail structure of an expressway. The anti-collision guardrail structure comprises a plurality of stand columns, a protection plate and a reinforcing structure. The plurality of stand columns are connected to a highway subgrade; the protection plate extends transversely and is connected to the multiple stand columns, and the longitudinal section of the protection plate is in a corrugated shape. The reinforcing structure comprises a steel wire rope, a connecting piece and a limiting piece, the connecting piece comprises a U-shaped bolt and a nut, the threaded end of the U-shaped bolt sequentially penetrates through the protection plate and the stand column and is connected with the nut on the outer side of the stand column, and the bent end of the U-shaped bolt is spaced from the protection plate so that a via hole can be formed between the U-shaped bolt and the protection plate. Each limiting piece comprises two limiting columns, the two limiting columns are fixed to the portions, on the two sides of the U-shaped bolt, of the steel wire rope respectively, and the outer diameter of each limiting column is larger than the inner diameter of the corresponding via hole so that the steel wire rope with the preset length can be limited between the adjacent limiting pieces. The steel wire rope is installed on the inner side of the protective fence, the steel wire rope can reduce the impact of the vehicle on the protective plate, the situation that the vehicle breaks away from the highway due to the fact that the protective fence plate is damaged or broken can be prevented to the maximum extent, and secondary accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of highway engineering, and particularly relates to a highway anti-collision guardrail structure. Background Art

[0002] An anti-collision guardrail is a common road safety facility with functions such as blocking, separating, and warning. Its role is to protect during vehicle driving, prevent accidents from occurring during vehicle driving, and minimize injuries. Anti-collision guardrails are usually applied to roads such as highways and expressways. A common anti-collision guardrail usually consists of a protective plate and multiple columns, and the protective plate is connected to the multiple columns. Although the anti-collision guardrail with this structure is simple in structure, its shear strength is insufficient. If a vehicle has an accident during high-speed driving and hits the protective plate at a high speed, the protective plate is likely to be damaged or broken, resulting in the vehicle driving out of the highway and causing secondary accidents. Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides a highway anti-collision guardrail structure. A steel wire rope is installed inside the guardrail. The steel wire rope can reduce the impact of the vehicle on the protective plate, and can prevent the vehicle from getting off the highway due to the breakage or fracture of the guardrail plate to the greatest extent, and avoid the occurrence of secondary accidents.

[0004] The technical solution of the utility model is as follows:

[0005] A highway anti-collision guardrail structure includes a plurality of columns, a protective plate, and a reinforcement structure. The plurality of columns are all connected to the highway subgrade; the protective plate extends horizontally, and the protective plate is connected to the plurality of columns. The longitudinal section of the protective plate is corrugated; the reinforcement structure includes a steel wire rope, a connecting member, and a limiting member. The connecting member includes a U-shaped bolt and a nut. The threaded end of the U-shaped bolt sequentially penetrates through the protective plate and the column and is connected to the nut outside the column. The bent end of the U-shaped bolt is spaced from the protective plate to form a through hole therebetween. The steel wire rope is connected to the protective plate through the through hole, and the steel wire rope is in a tensioned state. The limiting member includes two limiting columns, and the two limiting columns are respectively fixed on the steel wire rope on both sides of the U-shaped bolt. The outer diameter of the limiting column is greater than the inner diameter of the through hole to limit a predetermined length of the steel wire rope between adjacent limiting members.

[0006] Preferably, the distance between the two limiting columns is set to 4 - 10 cm.

[0007] Preferably, the limiting column is a rubber column, and a connecting hole penetrating along the axial direction is provided on the limiting column. The limiting column is connected to the steel wire rope through the connecting hole.

[0008] Specifically, the length of the limiting post is set between 3 and 8 cm, and the outer diameter of the limiting post is 3 to 6 cm.

[0009] Preferably, the limiting post is locked on the steel wire rope by wire or hoop.

[0010] Preferably, the steel wire rope on the protection plate is composed of multiple short steel wire ropes connected together, and adjacent short steel wire ropes are connected by a tightening device.

[0011] Preferably, the steel wire rope is located in the extension groove on the front side of the protection plate.

[0012] Specifically, the steel wire rope is a three-strand steel wire rope, and the outer diameter of the steel wire rope is set between 20 and 40 mm.

[0013] Preferably, a fluorescent sticker is pasted on the outside of the steel wire rope.

[0014] The beneficial effects of the present utility model are as follows:

[0015] By installing a steel wire rope inside the guardrail, when a vehicle collides with the guardrail, the steel wire rope can reduce the impact of the vehicle on the protection plate, and can prevent the vehicle from leaving the highway due to damage or breakage of the protection plate to the greatest extent, avoiding the occurrence of secondary accidents. In addition, the steel wire rope can effectively absorb the impact force of the vehicle, which is beneficial to preventing damage to the reinforcement structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the preferred embodiments below, the solutions and advantages of the present application will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments, and are not considered to be a limitation of the present utility model.

[0017] In the drawings:

[0018] Figure 1 is a schematic structural view of the highway anti-collision guardrail structure of the present utility model;

[0019] Figure 2 is a side view of the highway anti-collision guardrail structure of the present utility model.

[0020] The components represented by the reference numerals are:

[0021] 1 steel wire rope, 2 U-bolt, 3 nut, 4 limiting post, 5 column, 6 protection plate, 7 tightening device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] See Figure 1 and Figure 2 The present utility model provides a highway anti-collision guardrail structure, including a plurality of columns 5, protection plates 6 and reinforcement structures.

[0023] Multiple of the columns 5 are all connected to the highway subgrade. The column 5 can adopt a round tube or square tube structure, and its outer diameter is set between 15 - 20 cm.

[0024] The protection plate 6 extends horizontally, and the protection plate 6 is connected to multiple of the columns 5. The longitudinal section of the protection plate 6 is corrugated, and the front of the protection plate 6 has an extension groove extending along the length direction of the protection plate 6.

[0025] The reinforcement structure includes a steel wire rope 1, a connecting piece, and a limiting piece. Among them, the column 5 and the protection plate 6 are fixedly connected through the connecting piece. Specifically, the connecting piece includes a U - shaped bolt 2 and a nut 3. The threaded end of the U - shaped bolt 2 sequentially penetrates through the protection plate 6 and the column 5 and is connected to the nut 3 outside the column 5, thereby connecting the column 5 and the protection plate 6.

[0026] The bent end of the U - shaped bolt 2 is spaced from the protection plate 6, that is, the bent end of the U - shaped bolt 2 protrudes from the front side of the protection plate 6 to form a through - hole therebetween. The steel wire rope 1 is connected to the protection plate 6 through the through - hole. It should be noted that the head and tail ends of the steel wire rope 1 can be directly fixed to the bent end of the U - shaped bolt 2, and the steel wire rope 1 is in a tensioned state. When a vehicle collides with the guardrail, the steel wire rope 1 can reduce the impact of the vehicle on the protection plate 6, and can prevent the protection plate 6 from being damaged or broken to the greatest extent, resulting in the vehicle leaving the highway, and avoid the occurrence of secondary accidents.

[0027] The limiting piece includes two limiting columns 4. The two limiting columns 4 are respectively fixed on the steel wire rope 1 on both sides of the U - shaped bolt 2. The outer diameter of the limiting column 4 is larger than the inner diameter of the through - hole to limit a predetermined length of the steel wire rope 1 between adjacent limiting pieces.

[0028] It can be understood that when a vehicle collides with the steel wire rope 1, the collision point is impacted, causing the steel wire rope 1 to be pulled to both sides. However, due to the limiting piece being provided on the steel wire rope 1 and the limiting piece coming into contact with the U - shaped bolt 2, only the steel wire rope 1 between adjacent limiting pieces can be stretched, that is, the steel wire rope 1 generates an appropriate amount of deformation. At this time, the steel wire rope 1 can both restrain the vehicle and effectively absorb the impact force of the vehicle, which is beneficial to preventing damage to the reinforcement structure. If the limiting piece is not provided, after the vehicle impacts the steel wire rope 1, the entire steel wire rope 1 will be stretched, generating a large amount of deformation, and then the steel wire rope 1 cannot restrain the vehicle, and the vehicle may leave the highway.

[0029] Optionally, the distance between the two limit posts 4 is set to 4 - 10 cm. For example, the distance between the two limit posts 4 is 8 cm. By setting the distance between the limit posts 4, the deformation of the steel wire rope 1 can be restricted, preventing excessive deformation and ensuring that the vehicle can be restrained.

[0030] In one embodiment, the limit post 4 is a rubber post, and a connection hole penetrating along the axial direction is provided on the limit post 4. The limit post 4 is connected to the steel wire rope 1 through the connection hole. The rubber post can buffer the steel wire rope 1 to effectively absorb the impact force of the vehicle. Specifically, the limit post 4 is locked on the steel wire rope 1 by wire or hoop, facilitating the fixation of the limit post 4 on the steel wire rope 1.

[0031] Optionally, the length of the limit post 4 is set between 3 - 8 cm, and the outer diameter of the limit post 4 is 3 - 6 cm, endowing the limit post 4 with certain structural strength to avoid damage due to extrusion. For example, the length of the limit post 4 is 8 cm and the outer diameter is 6 cm.

[0032] Optionally, the steel wire rope 1 on the protective plate 6 is composed of multiple short steel wire ropes 1 connected together. The adjacent short steel wire ropes 1 are connected by a tightener 7, facilitating the adjustment of the tension of the steel wire rope 1. Specifically, the tightener 7 can be a flower basket wire tightener 7.

[0033] Optionally, the steel wire rope 1 is located in the extension groove on the front side of the protective plate 6 to make the structure more reasonable. In addition, a fluorescent sticker is pasted on the outside of the steel wire rope 1, increasing the visibility of the steel wire rope 1 during night driving and enhancing safety.

[0034] Specifically, the steel wire rope 1 is a three-strand steel wire rope 1, and the outer diameter of the steel wire rope 1 is set between 20 - 40 mm. For example, the outer diameter of the steel wire rope 1 is 30 mm, endowing it with certain structural strength and increasing its stability.

[0035] The above is only the preferred embodiment of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A highway anti-collision guardrail structure, characterized in that: include: A plurality of columns (5), wherein the plurality of columns (5) are all connected to a highway bed; A protective plate (6), the protective plate (6) extending transversely, the protective plate (6) being connected to a plurality of the upright posts (5), and the longitudinal cross section of the protective plate (6) being corrugated; A reinforcement structure, the reinforcement structure comprising a steel wire rope (1), a connecting piece and a limiting piece, wherein the connecting piece comprises a U-shaped bolt (2) and a nut (3), the threaded end of the U-shaped bolt (2) sequentially passes through the protective plate (6) and the column (5) and is connected to the nut (3) on the outside of the column (5), the bent end of the U-shaped bolt (2) is spaced from the protective plate (6) so that a through hole is formed therebetween, the steel wire rope (1) is connected to the protective plate (6) through the through hole, and the steel wire rope (1) is in a tensioned state, the limiting piece comprises two limiting columns (4), the two limiting columns (4) are respectively fixed on the steel wire rope (1) on both sides of the U-shaped bolt (2), the outer diameter of the limiting column (4) is larger than the inner diameter of the through hole, so as to limit the steel wire rope (1) of a predetermined length between adjacent limiting pieces.

2. The highway anti-collision guardrail structure according to claim 1 is characterized in that: The distance between the two limiting posts (4) is set to 4-10 cm.

3. The highway anti-collision guardrail structure according to claim 2 is characterized in that: The limiting column (4) is a rubber column, and a connecting hole penetrating along the axial direction is provided on the limiting column (4), and the limiting column (4) is connected to the steel wire rope (1) through the connecting hole.

4. The highway anti-collision guardrail structure according to claim 2, characterized in that: The limiting column (4) is locked on the steel wire rope (1) by means of an iron wire or a clamp.

5. The highway anti-collision guardrail structure according to claim 1, characterized in that: The length of the limiting column (4) is set between 3-8 cm, and the outer diameter of the limiting column (4) is 3-6 cm.

6. The highway anti-collision guardrail structure according to claim 1, characterized in that: The steel wire rope (1) on the protective plate (6) is formed by connecting a plurality of short steel wire ropes (1), and adjacent short steel wire ropes (1) are connected via a tightener (7).

7. The highway anti-collision guardrail structure according to claim 6, characterized in that: The steel wire rope (1) is located in an extension groove on the front side of the protective plate (6).

8. The highway anti-collision guardrail structure according to claim 1, characterized in that: The steel wire rope (1) is a triple-twisted steel wire rope (1), and the outer diameter of the steel wire rope (1) is set between 20 and 40 mm.

9. The highway anti-collision guardrail structure according to claim 1, characterized in that: The outside of the steel wire rope (1) is pasted with fluorescent stickers.

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