The resonance type floating rail fastener is a new type of vibration and noise reduction rail fastener system. The fastener system supports the lower jaw of the rail head by using an elastic wedge block, so that the rail bottom of the rail is separated from the rail seat, and acts as elastically supported rubber. The elastic block is supported and positioned by the side panel fixed on the foundation under the rail. Each fastener node of the floating rail fastener system is supported by a cast iron base, two cast iron side panel brackets, two cast iron wedge block fixings, two rubber elastic blocks elastic wedge rail support, and one under-rail safety support rubber pad and two spring clips. It is specially used in areas with high requirements for vibration reduction and noise reduction, such as subways, railway bridge lines in urban areas, etc. The floating rail fastener system can be used for both ballasted and ballastless rails, and is widely used in railway tracks around the world.

During the use of the existing floating rail fasteners, when the rail is subjected to the force of the wheel and rail, the rail undergoes lateral displacement and torsion, and there is a phenomenon that the positioning wedge moves up slowly, which will cause the side baffle to clamp the rail. The reduction of the tight restraint and the reduction of the lateral stiffness of the rail will lead to a series of problems such as reduced driving comfort and safety.