Windproof advertising board

Abstract

The invention discloses a windproof advertising board which comprises a lower fulcrum bar, an upper fulcrum bar, an advertising board bracket, a hydraulic cylinder, a first fulcrum bar, a second fulcrum bar and a third fulcrum bar. The first fulcrum bar, the second fulcrum bar and the third fulcrum bar are all embedded and fixedly arranged on a floor plate of a tall building. The lower end of the advertising board bracket is hinged with the third fulcrum bar. One end of the lower fulcrum bar is hinged with the first fulcrum bar and the other end of the lower fulcrum bar is hinged with one end of the upper fulcrum bar. The other end of the upper fulcrum bar is hinged with the upper end of the advertising board bracket. The hydraulic cylinder is hinged with the second fulcrum bar. The free end of a hydraulic rod of the hydraulic cylinder is hinged with the middle part of the lower fulcrum bar. When the hydraulic cylinder works, i.e. the hydraulic rod extends out to erect the advertising board, the advertising board takes effects. In the case of strong wind, particularly typhoon, the advertising board is put down to the horizontal state by retraction of the hydraulic rod, so that the advertising board is prevented from being damaged by blow of the strong wind to fall down on the ground and the injuries and deaths of people or damage to vehicles are avoided. Moreover, after the windproof advertising board is put down, advertising contents are very convenient and safe to replace.

Description

technical field [0001] The present invention relates to a billboard. Background technique [0002] Billboards (boards) on existing high-rise buildings have adopted many reinforcement measures in order to prevent the threat of strong winds to them, thus increasing more construction and installation costs. However, every time there is a strong wind, some billboards still fall from high altitude, hurting the safety of people or vehicles on the ground. Contents of the invention [0003] The purpose of the present invention is to solve the billboards on the existing high-rise buildings. In order to prevent the threat of strong winds to it, many reinforcement measures have been adopted, so a lot of construction and installation costs have been improved. However, whenever there is a strong wind, some billboards still fall from a high altitude, which will hurt people on the ground or the safety of vehicles, so a windproof billboard is provided. [0004] The present invention com...

AI Technical Summary

Problems solved by technology

However, whenever there is a strong wind, there are still some billboards falling from high altitude, hurting the safety of people or vehicles on the ground

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