Carriage derailing prevention device of car dumper

The utility model belongs to the technical field of car tipplers, and particularly relates to a car anti-derailing device of a car tippler, which adopts the following scheme that the car anti-derailing device comprises a track, a car is arranged at the top of the track, a mounting frame is fixedly mounted at the top of the track, a hydraulic rod is rotatably connected onto the mounting frame, and the left end of the hydraulic rod is rotatably connected with an attaching frame; the inner side of the attaching frame is connected with an attaching rod in a sliding mode, the attaching rod and the attaching frame are both in sliding contact with the carriage, the attaching frame is provided with a control mechanism and a positioning mechanism, the control mechanism is matched with the positioning mechanism, and the control mechanism comprises a control rod, two matching blocks and two fixing rods. When the hydraulic rod is attached to the inner wall of the carriage, the attaching rod is attached to the inner wall