Rollover prevention device for railway long steel rail transportation

The invention discloses a rollover prevention device for railway long steel rail transportation. The rollover prevention device comprises a fixed base, two pairs of bearing seats are arranged in parallel on the fixed base, two foot type plates are arranged between each pairs of the bearing seats, and a rotation axis is arranged on the outer side of each foot type plate, the rotation axis is in rotary connection with the corresponding bearing seat; each pair of foot type plates are fixedly connected through arranging a connection shaft at the lower end portions of the foot type plates, and a coverplate and a support plate are arranged in parallel on the upper end portions of each pair of foot type plates; a first rolling shaft which is arranged in a first roller in a sleeved mode is perpendicularly arranged between the coverplate and the support plate, a base side plate which is fixedly connected with the fixed base is perpendicularly arranged between each pair of the foot type plates, and a U-shaped groove is