| 摘要 |
The present invention relates to an automatic retractable bollard. And the automatic retractable bollard comprises: an outer body formed in a square pillar having internal space; a guide rod prepared in the inner side of the lower end of the outer body; a fixating member prepared in inner side of the upper end of the outer body; a moving rod combined in a support member of a pedestal; an inner body inserted into the outer body; a bollard body combined in the upper surface of the moving rod; a control means prepared in the internal part of the bollard body; a connecting member inserted into the upper part of the outer body; and a cover disposed in a guide cavity of the connecting member. The present invention can prevent the pulling out operation of the bollard from being stopped since water flowing into a gap of the outer body installed in the ground comes into contact with a control unit of the control means. |
