Type III Bridge Tie Rail Fastener

In order to prevent the derailed train from hitting the bridge or falling under the bridge, and to meet the operation requirements of large-scale tamping bridge, the spacing between type II protective rail and main rail of ballast bridge deck is changed from 200mm to 500mm, and the spacing between type III protective rail and main rail is changed from 220mm to 500mm, so as to meet the needs of the development of large-scale track maintenance mechanization. It realizes the expansion of the distance between the basic rail and the guard rail, avoids the disassembly of the guard rail during large-scale mechanical maintenance, and effectively improves the mechanization construction efficiency of large-scale track maintenance.