Alarm device convenient to install

The utility model discloses an alarm device convenient to install, and relates to the technical field of security enclosure alarm. The alarm device convenient to install comprises a mounting plate, the bottom of the mounting plate is fixedly connected with a base, the bottom of the base is provided with a camera shooting assembly and an alarm, the alarm comprises a clamping sleeve, the bottom of the clamping sleeve is fixedly connected with a camera body, a containing groove is formed in the base, and the camera body is fixedly connected with the containing groove. A threaded hole is formed in the side face of the base, a bolt is in threaded connection with the interior of the threaded hole, and a pushing block is fixedly connected with the side face of the bolt. The bottom of the clamping plate is pushed upwards through upward movement of the sliding rod, and under the action of the rotating shaft, the upper end of the clamping plate moves downwards to clamp the inner bottom end of the clamping sleeve, so th