Guardrail device for highway

Abstract

The present invention involves a kind of guardrail device used for a highway, wherein, said guardrail plate is formed by PVC resin and has reinforcing bands fixed therein; a bracket is set between a small vertical column and the guardrail plate, the bracket being fixed to the small vertical column, the guardrail plate being fixed to the bracket by frame bolts; a middle large vertical column mechanism is comprised of a middle connecting plate, a connecting ring and a guardrail plates having end portions; two guardrail plates wind reversely within the connecting ring; an end large vertical column mechanism comprises a sheath, an end connecting plate and guardrail plates having end portions, the sheath is fixed to the end large vertical column, the outer sheath is wound around by guardrail plates which are fixed to the end connecting plate by frame bolts. The whole design of the invention is reasonable in structure, have good performance of collision resistance, low cost and long life performance. It displays nice cushion property at the moment of vehicle collision and uneasily to impose scratch on the car, which greatly reduce the possibility to cause secondary damage to the passenger and vehicle. Moreover, the material used brings no pollution to the environment, therefore it's green.

Description

FIELD OF THE INVENTION [0001]The present invention involves a kind of guardrail device for a highway, which is mainly applied to the divided protection of the highway lanes.BACKGROUND [0002]Among the available techniques, the divided protection of the highway lanes is achieved by the linking of guardrail plates and vertical columns; since the length of the guardrail plate is relatively long, it needs to be supported and fixed by small vertical columns in the central part; meanwhile, as the length of the guardrail plate is unlikely to be infinite, the guardrail plates require to be joined and the joints need to be connected and fixed by middle large vertical column mechanisms; At the same time, both ends of the guardrail plates have to be joined and fixed by end large vertical column mechanism. Therefore, the structural design of the small vertical column, the middle large vertical column mechanism and end large vertical column mechanism are related to the using effect and strength o...

AI Technical Summary

Benefits of technology

The present invention provides a guardrail device for a highway with a reasonable design in structure, better performance in collision resistance, and good overall effect. The device includes guardrail plates, a small vertical column, a middle large vertical column, and an end large vertical column. The guardrail plates are fixed to the small vertical column and the middle large vertical column, and the middle large vertical column is fixed to the middle connecting plate and the connecting ring, while the end large vertical column is fixed to the sheath. The structural design of the invention is more reasonable, better in collision resistance, and safer in use. The guardrail plates are made of PVC resin, which is low-density and cost-effective, and there is no need for anticorrosion or spraying treatment. The frame bolt has external thread set at its both ends, which makes it stronger and more reasonable in its linkage strength.

Problems solved by technology

However, since the guardrail plates of the invention patent is fixed to the vertical column directly by screw nails, its impact resistance is poor, and the safety of use isn't high.

Moreover, the base material of the plate was not made of PVC resin, so it is easily to be oxidized and rusted, easy to damage cars in collision.

Although this structure is a little better than the one of which the plate is fixed to the vertical column directly by screw nails, it is only adapted to steel plates instead of PVC guardrail plates as we use it.

The guardrail of which is not formed by PVC resin, its shape only fits waveform beam, and ordinary screw snails are used for fixation between the waveform beam and the prevention block; thus, its comprehensive cost is expensive and not green enough; Meanwhile, the invention is adapted only to a narrow range, being of low capacity of collision resistance and lower life performance.

In addition, there have been some other patent applications of inventions and utility models, but their structural designs are not reasonable.

Moreover, the current structures cannot be associated in a simple way, otherwise it may lead to weaker strength, worse effect in use, or result in pollution, higher cost or even impossible to be put into practice.

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