Telescopic car top guard

The utility model relates to a telescopic car top guard, including the guardrail truss, with stay tube, setting fixed block and rigid coupling the stand pipe on fixed block car sedan -chair wall outside of guardrail truss support in sedan -chair top side, the stay tube is established the stand pipe is vertical setting, the upper end rigid coupling of stay tube is in on the guardrail truss, its lower extreme is pegged graft in the stand pipe, make the guardrail truss with the stay tube is relative the stand pipe reciprocates, the sedan -chair top is equipped with the locking the locking devicethat the guardrail truss reciprocated. The utility model discloses the time can move down the guardrail truss in the operation, reduce the height of guardrail truss, reduce the well space and occupy,the utility model discloses simple structure, connection stabilize, the security is good. 本实用新型涉及种伸缩式轿顶护栏，包括护栏桁架、将护栏桁架支撑在轿顶上方的支撑管、设置在轿厢轿壁外侧的固定块以及固接在固定块上的导向管，所述支撑管设所述导向管均为竖直设置；所述支撑管的上端固接在所述护栏桁架上，其下端插接在所述导向管内，使所述护栏桁架与所述支撑管相对所述导向