| 摘要 |
The present invention relates to a bridge rail using buoyancy, to automatically be laid down on an elevation of a water level and to automatically be held up on a normal water level, having a very simple structure and low manufacturing costs. According to the present invention, the bridge rail using buoyancy (1000) comprises: a bracket fixated on a bridge structure, a pair of posts, a guide rail, a hinge means, a buoyancy means, and a restoration means. The bracket (1100) comprises: a plate shape base part (1110) fixated on a structure (C) made of concrete or steel and wood, etc. of the bridge by a plurality of screw members (B); and a post installation part (1120) provided by protruding to a predefined length to an upper portion vertical to the base part in parallel. The post installation part (1120) comprises: a buoyancy operation vertical groove (1121) formed in a predefined length in a vertical direction; a post rotation guide groove (1122) formed in an arch shape on a top end of the buoyancy operation vertical groove; a restoration means fixating part (1123) provided to fixate one end of a spring of the restoration means; and a hinge means installation part (1124) to which the hinge means (1400) is engaged to rotationally install the post (1200). |
