Temporary protection device for highway construction: Fid-Bau Portal

Temporary protection device for highway construction

HU YANKAI / ZHANG LIXIN / GUO YANQIU / LU YONGMING / MU JIAN

The invention relates to the field of building construction, in particular to a highway construction temporary protection device which comprises a fence frame, a first baffle assembly and a second baffle assembly. The first baffle assembly is installed in the ventilation notch. The second baffle assembly is installed on the air inlet side of the first baffle assembly, and the lower end of the first baffle assembly is rotationally and slidably installed on the second baffle assembly. The first baffle assembly rotates under the action of wind power to open the ventilation notch so that wind can pass through the ventilation notch. When the first baffle assembly rotates, the larger the distance between the rotating center of the first baffle assembly and the upper end of the first baffle assembly is under pushing of the second baffle assembly, the smaller the force for driving the first baffle assembly to rotate to keep the ventilation notch open or driving the first baffle assembly to further rotate to increase the opening size of the ventilation notch is. And frequent resetting of the first baffle assembly caused by insufficient wind attenuation to overcome the torsion of the torsion spring or frequent opening or closing of the ventilation gap by the first baffle assembly caused by unstable wind is avoided.

本发明涉及建筑施工领域，具体涉及一种公路施工临时防护装置，包括围栏架、第一挡板组件和第二挡板组件，围栏架上预留有通风缺口；第一挡板组件安装于通风缺口；第二挡板组件安装于第一挡板组件的进风侧，第一挡板组件的下端转动且滑动安装于第二挡板组件。第一挡板组件在风力作用下转动使通风缺口打开进而使风通过。且第一挡板组件转动时，在第二挡板组件的顶推下第一挡板组件的转动中心与第一挡板组件上端之间的距离越大，驱动第一挡板组件转动保持通风缺口打开或驱动第一挡板组件进一步转动增大通风缺口打开大小的力越小，避免风力衰减不足以克服扭簧的扭力导致第一挡板组件频繁复位，或风力不稳定导致第一挡板组件频繁打开或关闭通风缺口。

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