Anti-falling supporting frame for billboard

Abstract

The invention belongs to the technical field of supporting frames, and particularly relates to an anti-falling supporting frame for a billboard. A billboard, a billboard fixing plate, an executing mechanism, a U-shaped supporting plate and a base are included, wherein when the position of a rotary rod is limited and the billboard is intermittently blown by wind, the base is no longer parallel to the upper plate surface of the U-shaped supporting plate to generate an included angle to allow a one-way transmission mechanism to generate output in a single direction intermittently, a limiting strip is driven to move downwards by an output gear through a first rack and a connecting strip to be released from a limiting groove formed in the rotary rod, after the position of the rotary rod is notlimited, when the billboard is blown by wind, a certain inclination angle is generated by a billboard in an upright state, a small part of the billboard is subjected to the blowing force of wind to reduce the possibility of being blown down of the billboard by wind, in addition, when a limiting sliding rod is not limited by a fourth guiding block, the barycenter of the billboard moves downwards, the stability of the whole anti-falling supporting frame is higher, and wind resistance of the anti-falling supporting frame is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of brackets, in particular to an anti-fall bracket used for billboards. Background technique [0002] At present, for many businesses, product advertisements or business event information often need to be promoted externally, and in these promotions, advertisements or event information are posted on the wall or hung on the wall in the form of billboards Carry out publicity and promotion; but in order to facilitate the carrying and moving of these billboards, merchants often install the billboards on the brackets, so that on the one hand, they can be moved at any time, and on the other hand, they use the stability of the brackets to make the billboards stand on the ground; But when billboard is subjected to bigger wind, because the area that billboard is blown by wind is big, so billboard is easy to be blown down by wind together with support. In order to avoid the billboard and the bracket from being blown ...

AI Technical Summary

Problems solved by technology

[0002] At present, for many businesses, product advertisements or business event information often need to be promoted externally, and in these promotions, advertisements or event information are posted on the wall or hung on the wall in the form of billboards Carry out publicity and promotion; but in order to facilitate the carrying and moving of these billboards, merchants often install the billboards on the brackets, so that on the one hand, they can be moved at any time, and on the other hand, they use the stability of the brackets to make the billboards stand on the ground; However, when the billboard is blown by a relatively large wind, the billboard and the support are easily blown down by the wind due to the large wind-blown area of ​​the billboard.

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