Municipal sign post automatic protection device based on gravity center adjustment

Abstract

The invention provides a municipal sign post automatic protection device based on gravity center adjustment, wherein the device comprises a main rod, a lifting rod is movably inserted into the top ofthe main rod, a cover plate is fixedly connected to the top of a vertical rod, a movable plate is movably inserted into a fixed base, and the left side and the right side of the vertical rod are bothmovably connected with a guide rib plate through telescopic rods; and positioning clamping blocks are movably connected to the left side and the right side of the bottom of the vertical rod through connecting rods correspondingly, and the positioning clamping blocks are inserted into the side wall of the main rod. When external wind power is too large, the rotating shaft rotates too fast, the movable plate is subjected to too large centrifugal force, extends outwards to impact the cover plate, drives the vertical rod to move upwards, drives the positioning clamping block to be disengaged fromthe clamping groove through the connecting rod after the vertical rod moves upwards, then the lifting rod retracts into the main rod under the action of gravity, the gravity center of the whole boardrod moves downwards, and toppling and bending are not likely to happen. When the external wind power is large, the gravity center is automatically lowered to achieve the self-protection 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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