Waterproof alarm device for archival repository

The utility model discloses a waterproof alarm device for an archival repository, which belongs to the technical field of archival repository supplies and comprises a door frame and a terrace, the door frame is fixedly connected to the terrace, a doorsill is mounted at the bottom end of the inner side of the door frame, and a sealing rubber strip is arranged on the outer side of the doorsill. Clamping grooves are formed in the root of the inner wall of the door frame and the upper surface of the terrace, the clamping grooves and the sealing rubber strips form an embedded structure, a water storage groove is formed in one side of each clamping groove, a boss is fixedly connected to the bottom wall of the inner side of each water storage groove, an inclined plane is arranged at the top of each boss, and a water immersion sensor is installed at each inclined plane; a storeroom door is connected to the upper portion of the threshold through a hinge, a control host and an alarm are installed on the outer vertical