Safety arc extinguishing short circuit device

The utility model discloses a safety arc extinguishing short circuit device, which comprises a shell, a switch cover, a movable electrode and a closing switch, the switch cover is buckled at the upperpart of the shell, the movable electrode is arranged inside the shell, and the closing switch is arranged on the side wall of the shell; arc extinguishing processing is carried out from two angles, firstly, a structure in which a moving contact and a static contact can be instantaneously connected is designed, the moving contact can rapidly move to realize contact with a fixed contact through cooperation of a moving electrode, a spring at one end, a closing switch at one side and a separating switch, and the amount of generated electric arcs is reduced from the source of the electric arcs; and secondly, arc extinguishing treatment is carried out in an arc propagation process, and arc extinguishing in the arc propagation process is realized by additionally arranging the arc extinguishing grid pieces on the switch