Airtight fireproof door

• Main Authors: MEI YAOPING, CHENG YE
• Format: Patent
• Language: Chinese; English
• Published: 03.06.2022
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; EQUIPMENT FOR SHIPPING; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; LADDERS; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

The utility model discloses an airtight fireproof door which comprises a door leaf and a door frame, one side of the door leaf is connected with the door frame through a hinge, the other side of the door leaf is provided with a door lock, dog devices are symmetrically arranged on the door leaf up and down, the dog devices are driven by a connecting rod and connecting plate structure, and a sealing ring is arranged at the joint of the door leaf and the door frame. The door is reasonable and ingenious in structural design, dense smoke and heat are prevented from entering a cabin from a gap by means of the self-dislocation structure of the door leaf and the door frame and interference fit of the door leaf and the door frame, the connection tightness and firmness between the door leaf and the door frame are enhanced through the dog device, and use is convenient. 本实用新型公开了一种气密防火门，包括门扇和门框，门扇一侧通过铰链与门框连接，门扇另一侧设有门锁，门扇上下对称设置轧头装置，轧头装置由连杆与连板结构驱动，门扇与门框相接处设有密封圈。本实用新型结构设计合理巧妙，利用门扇与门框的自身错位结构，门扇与门框过盈配合来实现避免浓烟和热量从缝隙中进入舱室，轧头装置加强