Light grille unit plate and light ray adjusting device for entrance and exit of tunnel

Abstract

The invention discloses a light grille unit plate and a light ray adjusting device for entrance and exit of a tunnel. The light grille unit plate comprises an outer frame, two light grille brackets and a plurality of V-shaped light grille plates, wherein the outer frame is of a quadrilateral-shaped framework structure and is formed by connecting two opposite edge frames and two opposite seal heads; the two light grille brackets are respectively arranged at the inner sides of the two opposite edge frames and are respectively arranged near the two edge frames, and a plurality of fixing holes are formed in the light grille brackets at intervals; each V-shaped light grille plate is provided with a V-shaped cross section, and comprises two side plates for forming a V-shaped opening; the V-shaped light grille plates are fixedly arranged between the two light grille brackets in parallel through the fixing holes in the light grille brackets, and the V-shaped openings of the V-shaped light grille plates face the same direction, and respectively face one of the two opposite seal heads; the depth of the V-shaped opening of each V-shaped light grille plate is greater than the distance between the two adjacent V-shaped light grille plates.

Description

technical field [0001] The invention relates to the technical field of road engineering equipment, and more specifically, relates to a light grid unit plate and a light adjusting device for tunnel entrances and exits, which can effectively adjust the light at tunnel entrances and reduce traffic accidents. Background technique [0002] Today, tunnels are widely used in highway traffic engineering. While drivers experience the convenience of tunnels, tunnel entrances and exits have also become frequent sections of road accidents. The main reasons are the drastic changes in light and darkness at tunnel entrances and exits and the lack of light inside the cave. Because when a vehicle enters or exits a tunnel, it is a process of light intensity and dramatic changes in light and darkness. When the vehicle suddenly enters the tunnel, the driver's eyes are completely dark, just like entering a scary "black hole", which is prone to visual impairment and Psychological panic; once the ...

AI Technical Summary

Problems solved by technology

[0003] If the driver is driving on a road with obvious changes in brightness, visual impairment will occur due to the lag of visual experience in adapting to the environment, which will seriously affect driving safety.

At this time, the driver is very likely to choose emergency braking, which may cause traffic accidents such as vehicle rollover and rear-end collision.

Although in order to improve the safety of tunnel driving, lighting facilities have been installed inside the tunnel during the design, but this measure has not completely changed the difference in brightness between the inside and outside of the tunnel.

At the same time, due to the closed nature of the tunnel, dust and exhaust gas are likely to remain on the road surface for a long time. Over time, the adhesion coefficient of the road surface changes suddenly. As long as the driving speed is changed when entering the tunnel, traffic may occur due to vehicle slipping out of control. ACCIDENT

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