High-intensity steel fireproof channel door

Abstract

The invention discloses a high-intensity steel fireproof channel door, which comprises a door frame (1) and a door leaf (2), wherein the door frame (1) and the door leaf (2) are connected with each other through a pivot hinge (3) to form the channel door. The high-intensity steel fireproof channel door is characterized in that the door frame (1) comprises a hinge side vertical frame (101), an upper frame (102), a lock side vertical frame (103) and a door sill (104) which are sequentially and fixedly connected with one another to form the square door frame (1). One side, which is provided with the pivot hinge, of the door frame has a clamping slot structure; a stage-type clamping strip is arranged on the hinge side of the door leaf; and after the door leaf is closed, the clamping strip is embedded into the clamping slot to firmly lock the door leaf. By adopting the pivot hinge, the door leaf and the door frame are convenient to mount and adjust, and a door gap is uniform; and a multi-point push rod escape lock and a door locker are arranged on the door, so that in an emergency, people can escape, and the door can be automatically closed.

Description

technical field [0001] The invention belongs to the technical field of building components, and in particular relates to an escape passage door used in a building where there is unstable wind pressure, especially a high-strength steel fire-proof passage door that can withstand instantaneous wind pressure impact. Background technique [0002] With the rapid development of the economy, my country's construction industry has also developed rapidly. Large-scale infrastructure projects are blooming all over the country, especially large-scale railway and subway projects are constantly being built in large and medium-sized cities in my country, and in the construction of railways and subways. For the excavation of large-scale tunnels, at the passages of these two-way tunnels of railways or subways, due to the operation of trains and the wind tunnel effect, instantaneous wind pressure impacts will be generated, resulting in huge impact forces. At present, the large gates installed a...

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Problems solved by technology

[0003] Aiming at the large size of the large gate installed at the existing tunnel entrance, in order to adapt to the requirement of resisting the huge instantaneous impact force, the opening is relatively slow, which cannot meet the requirements of both wind resistance and fast escape. The present invention provides a high-speed gate. The high-strength steel fire escape door can not only resist wind pressure, but also realize quick opening, and has fire protection function, meeting the requirements of escape passage

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