This technology features a guardrail designed with an upper rollover prevention unit that rotates downward upon vehicle impact, and a lower shock-absorbing unit that uses springs to dampen the force. These sections are connected by sacrificial members, allowing the upper and lower parts to move independently.
Conventional guardrails, which use corrugated beams supported by posts, often fail to effectively absorb impact energy, causing vehicles to spin and resulting in severe damage to both the vehicle and its occupants. Even guardrails designed to absorb energy through steel plate deformation or staged dampening struggle to prevent vehicle rotation and rollover during high-impact collisions, leading to secondary accidents.
This technology features a rollover prevention unit that protrudes further outward than the shock-absorbing unit to redirect impact force downward. The post's curved insert fits into the rotation head's groove to act as a pivot, while a stopper prevents upward tilting and a reinforcement member increases structural rigidity. The lower plate's compression section pushes into a spring-loaded cylindrical housing, where viscous fluid further dampens the impact. The plastic sacrificial members connecting the upper and lower plates break upon impact to absorb additional energy and serve as reflective surfaces for headlights during normal operation. Suitable for mountainous roads, highway medians, bridge approaches, and sharp curves, this system prevents vehicles from vaulting over the guardrail and reduces secondary accidents caused by rotation.
This invention was developed with support from the Ministry of Land, Infrastructure and Transport's project for the development of eco-friendly, high-yield recovery and circulation systems for unconventional oil.
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