Pneumatic lifting safety advertising board convenient to replace

Abstract

A pneumatic lifting safety advertising board convenient to replace comprises a stand column, a main transmission cavity is formed in the stand column, a winch shaft extending forwards is rotatably arranged on the rear end wall of the main transmission cavity, a first bevel gear is fixedly arranged at the front end of the winch shaft, A winch wheel is fixedly arranged at the back side of the firstbevel gear on the winch shaft. The pneumatic lifting safety advertising board convenient to replace is simple in structure and convenient to use, resources can be effectively utilized through pneumatic wind power, resource waste is reduced, automatic lifting can be achieved according to the wind power, The problem of casualties caused by damage and collapse of the antiaircraft gun billboard due tostrong wind is effectively solved, the antiaircraft gun billboard can automatically recover after strong wind, the advertisement replacement height is reduced through manual control, advertisements can be replaced on the ground, the advertisement replacement difficulty is reduced, and the advertising board also has the advantages of attracting eyeballs, enhancing the advertising effect and the like.

Description

technical field [0001] The invention relates to the technical field of billboards, in particular to an easy-to-replace pneumatic lifting safety billboard. Background technique [0002] Anti-aircraft billboards are a kind of outdoor billboards, mainly referring to erecting tall and eye-catching billboards beside major road sections such as highways, urban roads, and overpasses. Since the advent of the towering structure of the anti-aircraft gun billboard, its practical advertising effect has been favored by outdoor advertising owners. However, when installing and replacing advertising content, due to high-altitude operations, there are extremely high safety hazards. How to reduce the high-altitude movements of the staff to improve the safety of high-altitude operations is a problem that needs to be considered today. The existing anti-aircraft gun billboards need the auxiliary operation of the crane when replacing the advertising paper. The huge area of ​​the advertising boar...

AI Technical Summary

Problems solved by technology

However, when installing and replacing advertising content, due to high-altitude operations, there are extremely high safety hazards. How to reduce the high-altitude movements of the staff to improve the safety of high-altitude operations is a problem that needs to be considered today.

The existing anti-aircraft gun billboards need the auxiliary operation of the crane when replacing the advertising paper. The huge area of ​​the advertising board requires a lot of time to clean the advertising board and a lot of time when pasting new advertising paper, and high-altitude operations Difficult to meet the needs of advertising replacement

[0003] Because of its tall and eye-catching billboards, anti-aircraft billboards can play a very good publicity effect, so they are favored by merchants. However, the existing anti-aircraft artillery advertisements are often only seen by people. The utilization rate of advertisements Low, can not achieve good results, and it is precisely because the antiaircraft gun billboards are larger, so the force surface is larger, in strong winds, it is easy to blow over the billboards and even cause the antiaircraft guns to collapse, causing casualties , so we propose an easy-to-replace wind-operated lifting safety billboard to solve the above problems

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