Pass on girder steel and prevent guardrail bar

The utility model provides a pass on girder steel and prevent guardrail bar, preventing the guardrail bar unit on the edge of a wing of girder steel is located at the interval, preventing being connected with wire rope between the guardrail bar unit for adjacent two, every prevents that the guardrail bar unit includes: the holder, the fastening centre gripping is on the edge of a wing of girder steel, horizontal telescopic rod, including first link and second link, first link rigid coupling in holder, protection pole setting, rigid coupling in second link, wire rope are connected in the protection pole setting. The utility model provides a prevent the narrow and small problem in guardrail bar space on the current girder steel to the further security that improves the walking. 本实用新型提供了种钢梁上通行防护栏杆，包括间隔设于钢梁的翼缘上的防护栏杆单元，相邻两个防护栏杆单元之间连接有钢丝绳，每个防护栏杆单元包括：夹座，紧固夹持于钢梁的翼缘上；水平伸缩杆，包括第连接端以及第二连接端，第连接端固接于夹座；防护立杆，固接于第二连接端，钢丝绳连接于防护立杆上。本实用新型解决了现有钢梁上防护栏杆空间狭小的问题，并进步提高行走的安全性。