The fishtail plate, commonly known as the track splint, plays a connecting role at the rail joint. It is divided into fishboard for light rail, fishboard for heavy rail and fishboard for lifting rail.

The installation principle and function of train insulator

Fishplate is a fastener used for the connection between the rail and the rail, the use of fishplate than rail butt welding to save labor, simple and quick installation, fishplate and fishtail bolt matching use. A fishtail bolt hole is arranged in the middle of the fishtail plate, and a contact surface in contact with the rail is arranged on both sides along the horizontal axis of the fishtail bolt hole. The contact surface in contact with the top of the rail extends upward to form a transition section higher than the rail side. The transition section forms a bridge arch with the middle high and both ends low along the length direction of the fishtail plate. The arch fishtail structure of the bridge can reduce the impact of the wheel on the rail joint, increase the longitudinal continuity of the rail joint, and improve the smoothness of the train when passing.

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