Sliding rail push-pull folding type protective airtight door

Abstract

The invention provides a sliding rail push-pull folding type protective airtight door. The sliding rail push-pull folding type protective airtight door comprises a door frame, a sliding rail, a pulleyand a door leaf. The door frame is fixed to a door frame wall through concrete pouring, and a sealing rubber strip is arranged on the side face, facing the door leaf, of the door frame; the sliding rail is arranged at the top of the door frame; the pulley is slidably erected on the guide rail; and the door leaf is arranged on one side of the door frame and located under the guide rail, the door leaf is connected with the pulley, and a locking mechanism used for locking the door leaf is arranged on the door leaf. According to the technical scheme of the sliding rail push-pull folding type protective airtight door, peacetime conversion is simple and fast, one-man operation is needed, and the blocking plate stacking problem is solved; the space of a door hiding room is small, the civil engineering cost can be effectively reduced, and the requirement for defense in places with insufficient arrangement space of the sliding rail type push-pull protective airtight door is met; and the tunnelspace is not occupied, the space landscape and the visual effect are not influenced, and the obvious advantages are achieved under the large orifice size.

Description

technical field [0001] The invention belongs to the technical field of military defense and civil defense engineering, and in particular relates to a slide rail push-pull folding 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, even urban civil air defense evacuation arteries can also be used as personnel shelters. Under the attack and secondary urban disasters after the attack, it can ensure the safety of personnel and equipment, and has the ability to improve the comprehensive protection of the entire city. [0003] In order to protect the safety of people's lives and property, the airtight protection of the tunnel space of underground facilities is required in the event of war, but in daily conditions, the tunnel space does not need to be closed, and is used for the passage of underg...

AI Technical Summary

Problems solved by technology

The authorized announcement number is CN 103758446B, which discloses a push-pull protective airtight door with steel structure. The left and right movement of the screw rod drives the inner pressure wheel and the outer pressure wheel on the screw rod to roll left and right, so that the door leaves are shifted as a whole, and the sealing The embedded pressure strip is completely withdrawn or embedded in the sealing strip 11 to realize the airtightness and separation of the door leaf and the door frame, but the rotation of the screw rod is to drive the reducer by operating the hand wheel to rotate the upper link and the lower link, and then drive the upper commutator and The output shaft of the lower commutator rotates, and then drives the bushing on the output shaft to make the screw move in a straight line. The above process is relatively slow, which is not conducive to quick installation and positioning in wartime

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