Folding protective fence for road and bridge construction

A folding protective fence for road and bridge construction comprises a plurality of protective plates, and hinge mechanisms used for being connected with other protective plates are arranged on the protective plates. The hinging mechanism comprises a first connecting assembly and a second connecting assembly which are matched with each other, the first connecting assembly comprises a sleeve fixedly connected with the protection plate, the second connecting assembly comprises a guide column, and the guide column is rotationally arranged in the sleeve and used for being connected with other protection plates; the hinge mechanism further comprises a locking assembly capable of locking the guide column. The folding protective fence is convenient to store and transport and high in applicability. 一种路桥施工用折叠防护栏，包括多个防护板，防护板上设置有用于连接其他防护板的铰接机构；所述铰接机构包括相互配合的第一连接组件和第二连接组件，第一连接组件包括与防护板固定连接的套筒，第二连接组件包括导柱，导柱转动设置在套筒内，导柱用于连接其他防护板；所述铰接机构还包括能够将导柱锁止的锁止组件。本实用新型，折叠防护栏方便收纳和运输，并且其适用性强。