Adjustable partition plate of storage hard disk cabinet

The utility model relates to the technical field of storage hard disk cabinets, and discloses an adjustable partition plate of a storage hard disk cabinet, which comprises a cabinet body, a bearing and a cabinet door, the left side of the cabinet body is connected with the cabinet door through the bearing, the inner side of the cabinet door is provided with a fixing hole, and a sliding device is arranged in the cabinet body. The sliding device comprises partition plates, first heat dissipation plates and connecting columns, the partition plates are arranged in the cabinet body, the first heat dissipation plates are arranged in the partition plates, a second heat dissipation plate is arranged at the bottom of the interior of the cabinet body, the connecting columns are installed on the two sides of each first heat dissipation plate, and the connecting columns penetrate through the cabinet body into the sliding grooves. A fixing column is arranged below the connecting column, fixing grooves are formed in the tw