Unpowered bogie structure of 100% low-floor light rail vehicle

The invention provides an unpowered bogie structure of a 100% low-floor light rail vehicle. The unpowered bogie structure of the 100% low-floor light rail vehicle comprises a main spring seat, a secondary spring seat, a secondary transverse and vertical vibration absorber combined mounting seat, a braking lifting seat, a magnetic track stopping seat, a lifting seat and a traction pulling seat. The unpowered bogie structure of the 100% low-floor light rail vehicle is characterized in that the main spring seat and the secondary spring seat of a side beam are of a combine structure; the secondary transverse and vertical vibration absorber combined mounting seat are welded at the end part of the side beam; the braking lifting seat and the magnetic track stopping seat are welded at the outer side of the side beam; a braking reverse acting rod seat is welded between the magnetic track stopping seat and the braking lifting seat at the outer side of the side beam; the traction pulling rod seat and the lifting seat for lifting the a bogie are welded on a cross beam of the structure. With the adoption of the structure, the bearing capacity of the whole bogie can be improved, and the requirement maintenance of the bogie can be reduced; the structure is compact and simple, and the maintenance is easily carried out; a basic braking device is arranged at the outer side, the braking reverse acting rod seat is welded between the magnetic rail stopping seat and the braking lifting seat at the outer side of the side beam, and therefore, the effect of balancing the braking force is achieved; the result of fatigue strength test and examination which are performed at 10 million times according to the standards UIC515-4 and EN13749 shows that the unpowered bogie structure is relatively high in safety and reliability.