Anti-loosening Mechanism for Fastening Spiral Spikes of Railway Track Clip Fasteners

The anti-loosening mechanism fastened by the spiral spikes of the rail clip fasteners is composed of a single rib washer and an anti-loosening spiral spike. The centerline of the bottom of the single-convex gasket is provided with a through-convex rib, which can be embedded between the two middle limbs of the elastic strip to maintain close fit and fixation. Sagittarius is 0.15 ~ 0. 28mm.

There is a flange at the bottom of the anti-loosening spiral nail head. The diameter is the same as that of the single rib washer, and the bottom surface of the flange is provided with the same wavy arc surface as the top surface of the single rib washer.

When fastening, the wavy arc surface between the bottom flange of the anti-loosening spiral nail head and the circular top surface of the single convex edge pad rotates relative to each other, and the crests and troughs are staggered and meshed to restrict each other, and the upward counter pressure on the elastic strip fastener Under the action, neither the single convex washer nor the anti-loosening spiral spike can rotate by itself, and the purpose of complete anti-loosening is achieved.