Movable bridge deflection detection equipment

The invention relates to the field of bridge detection, and particularly discloses movable bridge deflection detection equipment which comprises a first engineering vehicle, a second engineering vehicle, a first support unit and a second support unit. The first support unit comprises a first fixing frame and a first telescopic frame, the first telescopic frame is slidably arranged on the first fixing frame, a first platform is arranged at the lower end of the first telescopic frame, a first steel rope drum is arranged on the first platform, a steel rope is wound on the first steel rope drum, and a detection unit is fixedly arranged on the steel rope; the second support unit comprises a second fixing frame and a second telescopic frame, the second telescopic frame is arranged on the second fixing frame in a sliding mode, a second platform is arranged at the bottom of the second telescopic frame, a U-shaped first fixing buckle is placed on the second platform, a rotatable winding shaft is arranged on the second