Steel structure push-pull protective closed door

Abstract

The invention discloses a push-pull type steel-structured airtight protective door. The push-pull type steel-structured airtight protective door comprises a door sash, a rolling wheel, a door frame, sealing rubber strips on the periphery of the door frame, a locking linkage mechanism, an outer side guide roller mechanism, a ditch cover plate opener and a steel guide rail for movement of the rolling wheel. The two sides of the door sash are respectively provided with an inner side guide roller mechanism. The inner side guide roller mechanisms are matched with the locking linkage mechanism to enable sealing embedded and pressed strips on the door sash to be integrally embedded or exit out of inlaid grooves of the sealing rubber strips, so smooth opening of the door sash can be guaranteed. A manual traveling wheel mechanism can guarantee that the large-size door sash slides lightly and conveniently in the opening process. The small airtight protective door brings convenience for a small amount of people to go out and come in. The push-pull type steel-structured airtight protective door is used for integrated entrances and exits for subways and civil defense, and solves the problem that the large-size airtight protective door is difficult to be airtight and move. The push-pull type steel-structured airtight protective door is simple in structure, convenient to operate, low in manufacturing cost, safe to use, obvious in war preparedness benefit, economic benefit and social benefit, wide in popularization and application prospect, and reduces huge workload in peacetime and wartime conversion.

Description

technical field [0001] The invention relates to a protective airtight door installed at the entrance and exit of subway, civil air defense and underground commercial development integration projects, in particular to a push-pull protective airtight door. Background technique [0002] Urban underground rail transit is an important part of modern urban public transportation. Urban underground rail transit projects are usually underground traffic arteries. In wartime, they are not only evacuation routes for urban civil air defense, but also can be used as personnel shelters. Under the attack of nuclear weapons, chemical weapons, conventional weapons and secondary urban disasters after the attack, it can guarantee the safety of personnel and equipment, and has the ability to improve the comprehensive protection of the entire city. With the rapid development of urban underground rail transit, the commercial integration of urban subways has emerged as the times require. The origi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a steel structure push-pull type protective airtight door installed at the large-span entrance and exit suitable for large-flow personnel, to solve the troublesome opening and closing of the traditional large-span push-pull type protective airtight door bad question

Images