An automatic protection device for municipal signboard poles based on center of gravity adjustment

Abstract

The present invention provides an automatic protection device for municipal billboard poles based on the adjustment of the center of gravity, which includes a main pole, the top of the main pole is movably connected with a lifting rod, the top of the vertical rod is fixedly connected with a cover plate, and the inside of the fixed seat is movably connected with a Movable plate, the left and right sides of the vertical bar are movably connected with the guide ribs through the telescopic rod, the outer side of the telescopic rod is installed with a compression spring, and the left and right sides of the bottom of the vertical bar are movably connected with positioning blocks through the connecting rod , and the positioning block is inserted into the side wall of the main rod. When the external wind force is too strong, the rotating shaft rotates too fast, and the centrifugal force on the movable plate is too large. It stretches out and hits the cover plate, driving the vertical bar to move up. After the vertical bar moves up, the positioning block is driven from the connecting rod The card slot is disengaged, and then the lifting rod is retracted into the main rod under the action of gravity. The overall center of gravity of the card rod moves down, and it is not easy to dump and bend. It realizes the automatic lowering of the center of gravity for self-protection when the external wind is strong. function.

Description

technical field [0001] The invention relates to the technical field of maintenance of municipal sign poles, in particular to an automatic protection device for municipal sign poles based on center of gravity adjustment. Background technique [0002] The municipal sign pole is a common facility in the municipal system. It is generally installed on both sides of the road or in the green belts on both sides of the road. It is used for traffic and route instructions, and can also be used for publicity signs. The structure of the municipal sign pole generally includes A support pole and a sign, the support pole is fixedly inserted on the ground, the sign is fixed on the support pole through bolts and other accessories, and signal signs such as traffic signs or publicity warnings are set on the sign. [0003] In order to achieve better indication or publicity effects, the municipal signs are generally designed to be relatively high, so that people can observe the signs eye-catchin...

AI Technical Summary

Problems solved by technology

[0003] In order to achieve better indication or publicity effects, the municipal signs are generally designed to be relatively high, so that people can observe the signs eye-catchingly and without obstacles. Therefore, the card pole is slender and has a high center of gravity. In a strong wind environment, this structure is not stable enough. Sometimes the municipal card pole is blown down by the wind, bent, deformed or even broken, which not only causes economic damage. Loss, broken card poles may also cause safety accidents, so it is not safe and convenient to use

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