Rail fishplate, also known as a rail joint plate or rail clamp, typically includes the following components:
Screw Holes: The central part of the fishplate is equipped with screw holes. These holes are used for fastening and securing the fishplate to the rails.
Upper Working Surface: On both sides along the horizontal axis of the screw holes, there are upper working surfaces. These surfaces come into contact with the lower part of the railhead.
Lower Working Surface: Similarly, on both sides along the horizontal axis, there are lower working surfaces. These surfaces come into contact with the upper part of the rail bottom.
Transition Section: The rear part of the upper working surface extends upwards to form a transition section. This transition section is higher than the rail surface.
Bridge Arch Shape: Along the length direction of the fishplate, a bridge arch shape is formed, creating high, middle, and low ends. This design helps reduce the impact on rail joints, increase the continuity of longitudinal deformation at the joint, and improve the comfort of train travel.
The specific design may vary, but these elements are common in the structure of fishplates used in railway applications.