Height limit alarm device and stirring transport vehicle

The utility model discloses a height limit alarm device and mixing truck, the height limit alarm device comprises a mounting seat body, a limit deflector rod, a position sensor and an alarm, the mounting seat body is used for being arranged on a truck body, the limit deflector rod can be arranged on the mounting seat body in a backward swinging mode, the upper end of the limit deflector rod is used for being arranged at the same height as the highest point of the truck body, and the position sensor is arranged on the alarm. The position sensor is used for detecting the swing position of the limiting deflector rod, and the alarm is in communication connection with the position sensor and is used for giving an alarm when detecting that the swing position changes. In the process that the vehicle body passes through the height limiting device, if the height limiting device is lower than the highest point of the vehicle body, the upper end of the limiting shifting rod abuts against the height limiting device and s