2. The anti-climbing device is divided into a welded anti-climbing device and a fastening anti-climbing device, which are respectively applicable to various types of rails. This type of railway track uses a spiral strong anti-climbing device, which is divided into two types: casting type and welding type. The casting type is composed of convex and concave rail cards, bolts and bearing plates; the welding type is made of rail card and track rail. It consists of buckles, bolts, rails and bearing plates. These two forms of the spiral strong anti-climbing device are used to tighten the bolts to clamp the rails tightly to the rails, thereby preventing the crawling of the rails during the running and braking of the locomotive, and reducing the occurrence of railway accidents.