The present invention installs an arc-shaped cylindrical traffic information box on the guard rail of the road that requires attention, such as a road curve, slippery road, etc., which performs an angular movement of the left and right arms at one side. The crankshaft installed in the information box is installed inside the information box to automatically move the arm with the warning light to the left and right at a certain angle so as to smoothly carry out the traffic guidance work requiring the attention of the road. The present invention relates to a guardrail traffic guide device that enables a vehicle traffic guide operation to be performed easily even in bad weather.;The technical configuration, the arc-shaped cylindrical traffic information box 120 is installed to be fixed through the coupling piece 121 via the support 110 on the guard rail 100 that is laid on the road, the traffic On one side of the guide box 120, the arm support 130 drawn out to the outside through the notch groove 122 is installed to be connected to the arm portion 140 via the flexible pipe 150 to rotate left and right at an angle. On the other hand, the inner side of the traffic information box 120, the motor 160 on the support plate (P) and the reducer 170 is installed on the upper side, the rotary cam on the rotating shaft 180 that is addressed to the reducer 170. 190 is rotatably installed, and the rotatable cam 190 has an arc-shaped support piece 201 integrally addressed to one end of the crankshaft 200 so as to be rotatable at a predetermined angle via the shaft 202. At the other end of the crankshaft 200, an arc-shaped support piece 201 is an end portion of the arm portion 140 via the shaft 202. Speaked to the support 141 and the eccentric rotation rotatable, the fixed shaft 220 is installed on one side of the support 141 via the support piece 210, the one side of the traffic guide box 120 It is a main point that the arm portion 140 drawn out to the outside through the binding groove 122 is installed to rotate at a predetermined angle.;Traffic Information Box, Notch Groove, Arm Support, Peel, Rotating Cam
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