Nozzle holder release device of ladle long nozzle manipulator

The invention discloses a nozzle holder release device of a ladle long nozzle manipulator, and belongs to the technical field of steelmaking continuous casting. The device is used for solving the problems that a nozzle cannot be separated from a ladle in time and the front end of a clamping arm does not have enough space for mounting the release device. According to the device, the original bolt fixed connection of a clamping arm and a hoop is changed into the nozzle holder release device, the device is positioned in an inner sleeve of the clamping arm, and therefore when a ladle long nozzle robot is in an accident state, the hoop and a long nozzle can be automatically released, and the problem that the whole robot breaks down or even is damaged when the long nozzle cannot be separated from the ladle due to accidents is solved; in the pouring process and in an emergency state, the hoop can be automatically separated from a holder by pressing a release button on a manual operator, it is guaranteed that a manip