CN215562176U - Buffer device for expressway protective fence - Google Patents

Abstract

The utility model relates to the field of highway construction, in particular to a buffer device for a protective fence of a highway, which comprises a protective fence plate, wherein a plurality of groups of supporting components are symmetrically arranged at the upper end and the lower end of the outer wall surface of the protective fence plate, a rotating shaft is arranged between two groups of supporting components positioned in the same column, a cylinder is sleeved on the rotating shaft, each supporting component comprises a positioning plate and a movable plate, the positioning plates are fixedly connected to the protective fence plate, and the movable plates are slidably connected to the positioning plates through a plurality of connecting rod adjusting components. According to the utility model, the multiple cylinders, the dampers and the multi-connecting-rod adjusting assemblies are arranged and matched with each other for use, so that the impact force of the automobile can be eliminated in multiple ways, the buffering effect is optimized, and the service life of the protective guard is greatly prolonged.

Description

Buffer device for expressway protective fence

Technical Field

The utility model relates to the field of highway construction, in particular to a buffer device for a guard rail of a highway.

Background

The expressway protective fence is the most important traffic infrastructure, and the expressway in China is developed from the 80 s, and plays an important role in influencing the development of national economy and society. The highway anti-collision guardrail is also called as a highway guardrail net, the highway guardrail net is the most common one in guardrail net series products, is formed by weaving and welding domestic high-quality low-carbon steel wires and aluminum-magnesium alloy wires, and has the characteristics of flexible assembly, firmness and durability. The permanent guardrail net wall can be manufactured to be used as a permanent guardrail net wall and can also be used as a temporary isolation net, and the permanent guardrail net wall can be realized only by adopting different upright post fixing modes in use. The existing highway guardrails are widely used on a plurality of domestic highways and have good effects.

The prior art expressway protective fence has the following problems: the highway protective guard has poor buffering performance, vehicles run on the highway at a high speed, and the impact force generated in the event of an accident is large, so that the protective guard in the prior art has a certain protective effect but has poor protective effect.

In view of the above, we propose a buffer device for a guard rail of a highway.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a buffering device for a protective fence of a highway, which solves the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a highway rail guard buffer, includes and protects the sideboard, a plurality of supporting components are installed to the equal symmetry in both ends about the external wall of sideboard, all are equipped with a pivot between two sets of supporting components that are located same row, the cover is equipped with the drum in the pivot, supporting component includes locating plate and fly leaf, locating plate fixed connection is on protecting the sideboard, the fly leaf is through many connecting rods adjusting part sliding connection on the locating plate.

Preferably, the two sets of fly leaf that are located same one row all offer the cylinder hole that holds the pivot, pivot and cylinder hole normal running fit, and the fixed bonding in the outside of drum has the rubber pad, and a plurality of gas pockets have evenly been seted up on the rubber pad.

Preferably, the locating plate and the movable plate are both arranged in a hollow mode, one end, far away from the cylinder, of the movable plate extends into an inner cavity of the locating plate and is provided with a limiting edge in a protruding mode, the surface of the limiting edge is fixedly connected with a spring, and one end, far away from the limiting edge, of the spring is fixedly connected to the inner side wall of the locating plate.

Preferably, many connecting rods adjusting part is four connecting rods adjusting part, including first connecting rod, second connecting rod, third connecting rod and fourth connecting rod, first connecting rod one end is passed through the center post and is connected with the second connecting rod rotation, and the first connecting rod other end passes through the articulated third connecting rod of round pin axle, and the articulated second connecting rod of round pin axle is passed through to fourth connecting rod one end, and the fourth connecting rod other end passes through the center pin and is connected with the third connecting rod rotation, and the pivot stretches into the bottom of the inner chamber of fly leaf and fixed connection center pin.

Preferably, the first connecting rod and the second connecting rod are both long connecting rods with the same specification and form a labor-saving lever, and the third connecting rod and the fourth connecting rod are both short connecting rods with the same specification and form a labor-saving lever.

Preferably, a through groove is formed in one side, close to the cylinder, of the positioning plate, the rotating shaft is in sliding fit with the through groove, and a rectangular long groove for accommodating the central column is formed in the upper end face of the inner cavity of the positioning plate.

Preferably, the bottom of the guardrail plate is fixedly provided with a plurality of groups of long screws which are linearly distributed, and the lower end face of each positioning plate at the lower end of the guardrail plate is fixedly connected with an auxiliary supporting rod.

Compared with the prior art, the utility model has the beneficial effects that:

when an automobile collides against the guardrail, the multiple cylinders start to rotate freely, and part of automobile impact force is decomposed through the free rotation, so that the consequences caused by traffic accidents can be relieved preliminarily; the impact force which is not decomposed by the cylinder further acts on the movable plate, the movable plate drives the cylinder to move left and extend into the positioning plate, the rotating shaft moving left along with the cylinder acts on the third connecting rod and the fourth connecting rod, the third connecting rod and the fourth connecting rod drive the first connecting rod and the second connecting rod to open towards two ends, the third connecting rod and the fourth connecting rod form a labor-consuming lever, the impact force of the automobile can be further eliminated, the impact effect is greatly reduced at the moment, the impact force of the automobile can be weakened again by the aid of elasticity of the spring, the buffering effect can be optimized, and the service life of the protective guard is greatly prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the structure of the present invention;

fig. 3 is a partially shown view of the structure of the present invention.

In the figure: the device comprises a guard board 1, a supporting component 2, a positioning board 21, a movable board 22, a cylinder 3, a rotating shaft 4, a long screw 5, an auxiliary supporting rod 6, a first connecting rod 7, a second connecting rod 8, a third connecting rod 9, a fourth connecting rod 10, a spring 11, a central column 12 and a limiting edge 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a highway rail guard buffer, includes and protects sideboard 1, protects sideboard 1 outer wall upper and lower both ends equal symmetry and installs a plurality of supporting component 2, is located and all is equipped with a pivot 4 between two sets of supporting component 2 of same row, and the cover is equipped with drum 3 on the pivot 4, and supporting component 2 includes locating plate 21 and fly leaf 22, and locating plate 21 fixed connection is on fender sideboard 1, and fly leaf 22 is through many connecting rod adjusting part sliding connection on locating plate 21. The bottom of the guardrail plate 1 is fixedly provided with a plurality of groups of linearly distributed long screw rods 5, and the lower end face of each positioning plate 21 at the lower end of the guardrail plate 1 is fixedly connected with an auxiliary support rod 6.

As shown in fig. 2 and fig. 3, two sets of movable plates 22 that are located the same row all set up the cylindrical hole that holds pivot 4, pivot 4 and cylindrical hole normal running fit, the fixed rubber pad that bonds in the outside of drum 3, evenly seted up a plurality of gas pockets on the rubber pad, the wearing groove has been seted up to one side that locating plate 21 is close to drum 3, pivot 4 and wearing groove sliding fit, drum 3 adopts the combined material of EVA and polyurethane, the benefit of chooseing for use this material lies in that it is itself just rich in elasticity and anticollision wear-resisting. When the automobile collides against the guardrail, the plurality of cylinders 3 start to rotate freely, and part of the automobile impact force is decomposed through the free rotation, so that the consequences caused by traffic accidents can be relieved preliminarily.

As shown in fig. 2, the multi-link adjusting assembly is a four-link adjusting assembly, and includes a first link 7, a second link 8, a third link 9 and a fourth link 10, one end of the first link 7 is rotatably connected to the second link 8 through a central pillar 12, and a rectangular long groove for accommodating the central pillar 12 is formed on the upper end surface of the inner cavity of the positioning plate 21. The other end of the first connecting rod 7 is hinged with a third connecting rod 9 through a pin shaft, one end of a fourth connecting rod 10 is hinged with a second connecting rod 8 through a pin shaft, the other end of the fourth connecting rod 10 is rotatably connected with the third connecting rod 9 through a central shaft, and the rotating shaft 4 extends into the inner cavity of the movable plate 22 and is fixedly connected with the bottom of the central shaft. The first connecting rod 7 and the second connecting rod 8 are both long connecting rods with the same specification and form labor-saving levers, and the third connecting rod 9 and the fourth connecting rod 10 are both short connecting rods with the same specification and form labor-saving levers. The impact force which is not decomposed by the cylinder 3 further acts on the movable plate 22, so that the movable plate 22 drives the cylinder 3 to move left and extend into the positioning plate 21, and the rotating shaft 4 moving left along with the cylinder 3 acts on the third connecting rod 9 and the fourth connecting rod 10, so that the third connecting rod 9 and the fourth connecting rod 10 drive the first connecting rod 7 and the second connecting rod 8 to open towards two ends, and the impact effect is greatly reduced because the third connecting rod 9 and the fourth connecting rod 10 form a labor-consuming lever, so that the impact force of the automobile can be further eliminated.

As shown in fig. 2 and fig. 3, the positioning plate 21 and the movable plate 22 are both hollow, one end of the movable plate away from the cylinder 3 extends into an inner cavity of the positioning plate 21 and is provided with a limiting edge in a protruding manner, the surface of the limiting edge 13 is fixedly connected with a spring 11, and one end of the spring 11 away from the limiting edge 13 is fixedly connected to an inner side wall of the positioning plate 21. The impact force of the automobile can be weakened again by the elasticity of the spring 11, so that the buffering effect can be optimized, and the service life of the protective guard is greatly prolonged.

The working principle is as follows: in practical use, when an automobile collides against the guardrail, the plurality of cylinders 3 start to rotate freely, and part of the automobile impact force is decomposed through the free rotation, so that the consequences caused by traffic accidents can be relieved preliminarily; next, the impact force which is not decomposed by the cylinder 3 further acts on the movable plate 22, so that the movable plate 22 drives the cylinder 3 to move left and extend into the positioning plate 21, and the rotating shaft 4 moving left along with the cylinder 3 acts on the third connecting rod 9 and the fourth connecting rod 10, so that the third connecting rod 9 and the fourth connecting rod 10 drive the first connecting rod 7 and the second connecting rod 8 to open towards two ends, and the impact effect is greatly reduced because the third connecting rod 9 and the fourth connecting rod 10 form a labor-consuming lever, so that the impact force of the automobile can be further eliminated. And the impact force of the automobile can be weakened again by utilizing the elasticity of the spring 11, so that the buffering effect can be optimized, and the service life of the protective guard is greatly prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a highway rail guard buffer, includes guardrail board (1), a plurality of groups supporting component (2), its characterized in that are installed to the equal symmetry in both ends about guardrail board (1) outer wall: all be equipped with a pivot (4) between two sets of supporting component (2) that are located same row, the cover is equipped with drum (3) on pivot (4), supporting component (2) are including locating plate (21) and fly leaf (22), locating plate (21) fixed connection is on guardrail board (1), fly leaf (22) are through many connecting rod adjusting part sliding connection on locating plate (21).

2. A buffer device of a guard rail for a highway according to claim 1, wherein: the two groups of movable plates (22) positioned on the same column are provided with cylindrical holes for accommodating the rotating shaft (4), the rotating shaft (4) is in rotating fit with the cylindrical holes, a rubber pad is fixedly bonded on the outer side of the cylinder (3), and a plurality of air holes are uniformly formed in the rubber pad.

3. A buffer device of a guard rail for a highway according to claim 1, wherein: the positioning plate (21) and the movable plate (22) are both arranged in a hollow mode, one end, far away from the cylinder (3), of the movable plate extends into an inner cavity of the positioning plate (21) and is provided with a limiting edge in a protruding mode, the surface of the limiting edge (13) is fixedly connected with a spring (11), and one end, far away from the limiting edge (13), of the spring (11) is fixedly connected to the inner side wall of the positioning plate (21).

4. A buffer device of a guard rail for a highway according to claim 1, wherein: many connecting rods adjusting part is four connecting rod adjusting part, including first connecting rod (7), second connecting rod (8), third connecting rod (9) and fourth connecting rod (10), center post (12) is passed through to first connecting rod (7) one end and is rotated with second connecting rod (8) and be connected, first connecting rod (7) other end is through the articulated third connecting rod of round pin axle (9), fourth connecting rod (10) one end is through the articulated second connecting rod of round pin axle (8), fourth connecting rod (10) other end is passed through the center pin and is rotated with third connecting rod (9) and be connected, pivot (4) stretch into the bottom of the inner chamber and the fixed connection center pin of fly leaf (22).

5. A buffer device of a highway protective fence according to claim 4, wherein: the first connecting rod (7) and the second connecting rod (8) are both long connecting rods with the same specification and form labor-saving levers, and the third connecting rod (9) and the fourth connecting rod (10) are both short connecting rods with the same specification and form labor-saving levers.

6. A buffer device of a highway protective fence according to claim 4, wherein: one side of the positioning plate (21) close to the cylinder (3) is provided with a through groove, the rotating shaft (4) is in sliding fit with the through groove, and the upper end surface of the inner cavity of the positioning plate (21) is provided with a rectangular long groove for accommodating the central column (12).

7. A buffer device of a guard rail for a highway according to claim 1, wherein: the bottom of the guardrail plate (1) is fixedly provided with a plurality of groups of long screw rods (5) which are linearly distributed, and the lower end face of each positioning plate (21) at the lower end of the guardrail plate (1) is fixedly connected with an auxiliary supporting rod (6).

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