Monostable permanent magnet operating mechanism

The invention discloses a monostable permanent magnet operating mechanism. The monostable permanent magnet operating mechanism is characterized in that the cross sections of an upper supporting part and a lower supporting part of a coil framework are regular polygons, each side face of the upper supporting part is provided with a mounting groove, permanent magnets are matched with the mounting grooves and embedded in the mounting grooves respectively, a magnet yoke is a regular polygon matched with the coil framework and arranged outside the coil framework in a sleeving mode, and the inner wall of the magnet yoke is in contact with the permanent magnets; an iron core is arranged below the coil framework and is fixedly connected with the magnet yoke; an armature is arranged above the coil framework and extends into a guide hole to be in up-and-down sliding fit with the guide hole; and an opening spring can keep the armature at the opening position. The monostable permanent magnet operating mechanism has the ad