Protective cover for bridge pier settlement observation board

The utility model provides a protective cover for a bridge pier settlement observation board, and belongs to the technical field of bridge construction. According to the technical scheme, the device comprises a box body with an opening in the upper end face, and a shading mechanism and a reset mechanism are arranged in the box body; the bottom surface of the box body is of a transparent structure; a dust scraping mechanism is arranged on the outer side face of the bottom face. The protective cover has the advantages that the protective cover is simple in structure and convenient to use, aging damage of wind and rain to a settlement observation point signboard and a pier sign, especially aging damage of ultraviolet rays to the settlement observation point signboard and the pier sign, is effectively prevented, and effective reading of information is guaranteed. 本实用新型提供了一种桥墩沉降观测牌用防护罩，属于桥梁施工技术领域。其技术方案为：包括上端面设置为开口的盒体，盒体内设置有遮光机构和复位机构；盒体的底面为透明结构；底面的外侧面上设置有灰尘刮除机构。本实用新型的有益效果为：本防护罩结构简单，使用方便，有效防止风雨对沉降观测点标识牌和墩号标牌，特别是紫外线对