A rail bolt nut locking device comprising a member having a first planar section at one end of the member, and a second planar section at an opposite end of the member, a central, curved intermediate section located between the planar sections. The first and second planar sections are substantially flat but include openings which are adapted to be friction fitted around the nuts of rail bolts which have been used to hold a frog or rail joint bar in place on a railway rail. The intermediate section is preferably made of a resilient plastic, to allow relative movement of the first and second planar sections. The planar sections, when fitted to the rail bolts, prevents loosening of the rail bolt nuts, and the curved intermediate section can act to prevent the rail bolts from backing out of the openings provided for the rail bolts. A device and method to lock the rail bolts in place is provided.

A rail bolt nut locking device comprising a member having a first planar section at one end of the member, and a second planar section at an opposite end of the member, a central, curved intermediate section located between the planar sections. The first and second planar sections are substantially flat but include openings which are adapted to be friction fitted around the nuts of rail bolts which have been used to hold a frog or rail joint bar in place on a railway rail. The intermediate section is preferably made of a resilient plastic, to allow relative movement of the first and second planar sections. The planar sections, when fitted to the rail bolts, prevents loosening of the rail bolt nuts, and the curved intermediate section can act to prevent the rail bolts from backing out of the openings provided for the rail bolts. A device and method to lock the rail bolts in place is provided.

A rail temperature expansion joint and a laying and mounting method thereof relate to the technical field of track transit. The rail temperature expansion joint includes a sleeper, the upper surface of the sleeper is symmetrically mounted with two first rails and two second rails, and the first rail and the second rail on one side are arranged on the same straight line; a gap is arranged between end faces of the first rail and the second rail; the adjacent ends of the first rail and the second rail are fastened and positioned by a group of adjustment components, the adjustment components are fixedly mounted on the embedded part, and the embedded part is located at the outer side of the first rail and the second rail.

A rail temperature expansion joint and a laying and mounting method thereof relate to the technical field of track transit. The rail temperature expansion joint includes a sleeper, the upper surface of the sleeper is symmetrically mounted with two first rails and two second rails, and the first rail and the second rail on one side are arranged on the same straight line; a gap is arranged between end faces of the first rail and the second rail; the adjacent ends of the first rail and the second rail are fastened and positioned by a group of adjustment components, the adjustment components are fixedly mounted on the embedded part, and the embedded part is located at the outer side of the first rail and the second rail.