Subway tunnel top cable rail crossing device

The utility model provides a subway tunnel top cable rail crossing device which comprises a cable trough box installation groove, a cable trough box and supporting angle steel, the cable trough box installation groove is formed in the top of a tunnel structure, and the supporting angle steel is installed in the cable trough box installation groove. The cable trough box is installed in the cable trough box installation groove through supporting angle steel, and heat dissipation holes are evenly formed in the bottom of the cable trough box. The rail crossing device has the advantages of being fast to assemble, easy to maintain, free of risks to train operation during operation and the like. 本实用新型提供了一种地铁隧道顶部电缆过轨装置，包括电缆槽盒安装槽、电缆槽盒和支撑角钢，所述电缆槽盒安装槽开设于隧道结构的顶部，所述电缆槽盒安装槽内安装有支撑角钢，所述电缆槽盒通过支撑角钢安装在所述电缆槽盒安装槽内，所述电缆槽盒底部均匀设置散热孔。本实用新型具有组装快捷、易于维护，同时运营期间过轨装置对列车运行无风险等优点。