Entrance-and-exit single protection closed door

Abstract

The invention provides an entrance-and-exit single protection closed door. The entrance-and-exit single protection closed door comprises a door frame, a door leaf, a locking assembly and a bottom sealing mechanism. A lower door doorsill of the door frame is flush with the ground; the locking assembly comprises side locking heads and a first driving device, the side locking heads are connected to the door leaf, and the first driving device is connected to the centers of first transmission rods with the two ends connected to the side locking heads through first driving rods; the bottom sealing mechanism comprises lower locking heads, a sealing beam and pin shafts, the lower locking heads are connected to the door leaf in a drivable mode, penetrating locking-head sleeves are fixed in the sealing beam, and the pin shafts penetrate through the lower locking heads and the locking-head sleeves and extend out, so that the sealing beam is fixedly connected with the lower locking heads. According to the entrance-and-exit single protection closed door, the door doorsill of the single protection closed door is flush with the ground, an active doorsill does not need to be installed during wartime to conveniently pass on weekdays, and the quick-closing-in-place function and the protection sealing function during wartime can be achieved; the lower locking heads are matched with locking holes, the sealing reliability is enhanced, and the anti-impact performance is improved; due to arrangement in the locking assembly, operation is easy and convenient, and rapid opening and closing are achieved.

Description

technical field [0001] The invention relates to an air defense opening device, more particularly to a single-leaf protective airtight door for an entrance and exit. Background technique [0002] Single-leaf civil air defense doors at the entrance and exit are mostly used for personnel evacuation passages with small openings. Most of the existing equipment adopts a living threshold structure such as figure 1 As shown, that is, the threshold 101 is not installed at ordinary times, and the installation of the living threshold 101 is carried out when the civil air defense door 102 needs to be closed in wartime. The advantage of this method is that the design is simple, and there is no need to design a separate sealing mechanism, but the conversion speed in wartime is slow, and it needs to be installed on site. The living threshold 101 is installed, and the living threshold 101 is prone to breakage and loss during storage. Contents of the invention [0003] The invention aims ...

AI Technical Summary

Problems solved by technology

[0002] Single-leaf civil air defense doors at the entrance and exit are mostly used for personnel evacuation passages with small openings. Most of the existing equipment adopts a living threshold structure such as figure 1 As shown, that is, the threshold 101 is not installed at ordinary times, and the installation of the living threshold 101 is carried out when the air defense door 102 needs to be closed in wartime. The advantage of this method is that the design is simple, and there is no need to design a separate sealing mechanism, but the conversion speed in wartime is slow, and it needs to be installed on site. The living threshold 101 is installed, and the living threshold 101 is prone to breakage and loss during storage

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