Outdoor transformer anti-theft alarm device

The utility model discloses an outdoor transformer anti-theft alarm device which comprises a base and a machine case arranged above the base, cooling fins are fixedly connected to the machine case, aninstallation shell is fixedly connected to the bottom end of the machine case, a lower plate is fixedly connected to the bottom end of the installation shell, and a sliding strip is arranged on the lower plate in a penetrating mode. A sliding rod and an alarm mechanism are fixedly connected to an inner cavity of the mounting shell, a sliding groove is formed in the sliding strip, an electromagnetic lock is fixedly connected to the base, a first nut is connected between the lower plate and the base in an abutting mode, and the extending end of the bottom of the first nut penetrates through thebase and is connected with a second nut in a screwed mode. According to the electromagnetic lock, the sliding strip shielding protection mechanism is adopted, the possibility that the first nut is driven by external machinery