High-speed railway and subway tunnel double-leaf steel-structure fireproof protection seal door

Abstract

The invention belongs to the technical field of protection engineering, and discloses a high-speed railway and subway tunnel double-leaf steel-structure fireproof protection seal door. The door comprises a door frame, a left hinge, a left door leaf, a right hinge, a right door leaf, a fireproof seal part and a linkage spring lock, the door frame is internally mounted in a tunnel, the fireproof seal part is mounted on the front side face of the door frame, and abuts against the rear side faces of the left door leaf and the right door leaf, the left door leaf and the right door leaf are hinged to the door frame through the left hinge and the right hinge, the linkage spring lock is mounted on the left door leaf and the right door leaf, and comprises a base, a handle, a transmission mechanismand lock head assemblies, the base and the lock head assemblies are mounted on the corresponding door leaves, the handle is mounted on the base, and the transmission mechanism is connected with the handle and the lock head assemblies. Through the scheme, one handle can control the multiple lock head assemblies at the same time to achieve unlocking or locking, the locking effect is improved, and firmness and reliability during locking can be improved.

Description

technical field [0001] The invention belongs to the technical field of protection engineering, and in particular relates to a double-leaf steel structure fire protection airtight door for high-speed railway and subway tunnels. Background technique [0002] Installing a fire door in the passage can make it possible that when an accident occurs in the passage, such as an explosion or fire, the accident only has a destructive effect on the passage on one side of the fire door, and has almost no destructive effect on the passage on the other side of the fire door. [0003] In the event of an accident, effectively closing the fire door is a key measure to avoid the expansion of the damage caused by the accident. In the prior art, a handle is usually used to control a lock to unlock or lock, that is, a lock is passed between the door leaf and the door frame. Linked to play the effect of locking the door, its locking effect is not ideal. Contents of the invention [0004] In ord...

AI Technical Summary

Problems solved by technology

[0003] In the event of an accident, effectively closing the fire door is a key measure to avoid the expansion of the damage caused by the accident. In the prior art, a handle is usually used to control a lock to unlock or lock, that is, a lock is passed between the door leaf and the door frame. Connected to play the effect of locking the door, the locking effect is not ideal

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