The utility model relates to the technical field of fireproof
doors, and discloses a fireproof door structure with good fireproof performance, which comprises a mounting frame, a hinge is fixedly connected to one side of the outer wall of the mounting frame, a fireproof shell is fixedly connected to one side of the outer wall of the hinge, and a door closer is fixedly connected to one side of the outer wall of the fireproof shell. One side of the door closer is arranged on one side of the outer wall of the mounting frame, an anti-theft
assembly is mounted in the fireproof shell, and a sealing
assembly is mounted on one side of the outer wall of the fireproof shell; the sealing
assembly comprises a fireproof frame, and one side of the outer wall of the fireproof frame is fixedly connected to one side of the outer wall of the fireproof shell. According to the fireproof door, the door body is made of high-temperature-resistant materials such as the
ceramic fibers, the cold-rolled steel sheets and the aluminum-
titanium alloy coatings, so that the
fire resistance is greatly improved; the
ceramic fibers can isolate flames and heat,
delay temperature rise and prevent fire spreading; and the cold-rolled steel sheet and the aluminum-
titanium alloy coating enhance the strength and
corrosion resistance of the door body, ensure the
structural stability, prolong the service life and provide high-quality fireproof protection.