Sealed fireproof door

Abstract

The invention discloses a sealed fireproof door comprising a fireproof door frame, a fireproof door body, a threshold, a fireproof door shutter, and a fireproof hinge. A piece of glass, an automatic fireproof lock and a fireproof handle are arranged at the fireproof door body. The automatic fireproof lock includes a main insert bolt body; and an elastic unit is fixed at the insert bolt body. The insert bolt body includes a pedestal and a spring bolt; the pedestal and the spring bolt are connected by a spring; and the tail end of the spring bolt has a shape like an inclined surface. A hand-operated bolt button is arranged at the main insert bolt body. The threshold is arranged at the lower part of the fireproof door body. The fireproof door shutter is arranged at the upper side of the fireproof door body and the two ends of the fireproof door shutter are fixedly connected with the fireproof door frame and the fireproof door body; and the fireproof hinge is arranged between the fireproof door frame and the fireproof door body and the two sides of the fireproof hinge are fixedly connected with the fireproof door frame and the fireproof door body. Expansion type sealing strips are arranged at the fireproof door frame and the threshold. According to the sealed fireproof door, the fireproof door can be locked automatically to save time for escaping; and smoke in the fire is blocked effectively. The mass of the sealed fireproof door is small, so that the installation of the sealed fireproof door becomes convenient.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a sealed fire door. Background technique [0002] In the past, the fire doors used metal heat insulation materials as the main fireproof material. Although the quality of the fire doors was guaranteed in this way, the weight of the fire doors was a difficult problem to solve, especially during the installation process. The inconvenience caused the staff and users a lot of trouble; moreover, most fire doors need to be manually locked when they are closed, which causes inconvenience in the escape process; there is still a gap between the door and the door frame after the fire lock is locked , although this kind of gap does not have a great impact on fire prevention, it will cause a lot of smoke to enter the room, and too much smoke will cause death if it enters the human respiratory tract. This problem is also quite serious. Contents of the invention [0003] The object of the ...

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Problems solved by technology

[0002] In the past, the fire doors used metal heat insulation materials as the main fireproof material. Although the quality of the fire doors was guaranteed in this way, the weight of the fire doors was a difficult problem to solve, especially during the installation process. The inconvenience caused the staff and users a lot of trouble; moreover, most fire doors need to be manually locked w

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