Entrance-and-exit dual-leaf protection closed door

Abstract

The invention provides an entrance-and-exit dual-leaf protection closed door. The entrance-and-exit dual-leaf protection closed door comprises a door frame, two door leaves and two locking assemblies connected with the door leaves respectively. The locking assemblies comprise driving devices connected with two commutators through transverse connecting rods, the two ends of each commutator are sequentially connected with threaded rods, long vertical connecting rods, upper locking heads or lower locking heads; transverse rods are arranged between the long vertical connecting rods, and a plurality of lower short connecting rods connected with the lower locking heads are fixed in the longitudinal directions of the transverse rods in a hanged mode; the locking assemblies are connected with sealing beam assemblies respectively; the sealing beam assemblies comprise bodies and penetrating locking head sleeves, and the locking head sleeves are connected with the lower locking heads through pin shafts. According to the entrance-and-exit dual-leaf protection closed door, locking and bottom sealing are controlled by a speed reducer through connection of the locking assemblies and the sealing beam assemblies, and the protection closed door is rapidly opened and closed to be in place; operation is easy and convenient, and the whole structure is simplified; as the multiple lower locking heads are arranged, the locking heads penetrate through sealing beams to enter locking holes, and effective extruding is formed; the stress structure of the sealing beams becomes the simply-supported structure, and the anti-impact capacity is better.

Description

technical field [0001] The invention relates to an air defense opening device, more particularly to a double-leaf protective airtight door for an entrance and exit. Background technique [0002] The entrance and exit double-leaf civil air defense door is used for the civil air defense mouth with a large opening size and the passage of personnel and vehicles. Most of the existing equipment adopts a living threshold structure or a flipped sealing beam. Living threshold structures (such as figure 1 ) That is, the threshold 101 is not installed at ordinary times, and the installation of the living threshold is carried out when the door leaf 102 of the civil air defense door 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 is slow in wartime, and it needs to be installed on site Live threshold, and the live threshold is prone to breakage and loss during ...

AI Technical Summary

Problems solved by technology

Live threshold structure (such as Figure 1) that is not installed at ordinary times Threshold 101, when the door leaf 102 of the air defense door needs to be closed in wartime, the installation of the living threshold is carried out. 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 is slow in wartime, and the living threshold needs to be installed on the spot, and it can be activated. Thresholds are prone to breakage and loss in storage

And the overturned sealed beam structure 201 (such as Figure 2) The sealing device 201 is installed inside the door leaf 202. The sealing device 201 realizes the sealing between the door leaf 202 and the door frame and the sealing between the door leaf and the ground 203 through the independent sealing device 201, which can realize fast sealing and achieve the purpose of sealing and isolating the inside and outside. The sealing beam mechanism has insufficient impact resistance when sealing large-sized orifices, and the locking mechanism is closed first, and then the sealing beam mechanism is turned over after the locking mechanism is closed. The locking mechanism and the sealing beam mechanism are two independent mechanisms, so To be carried out separately, the synchronous movement of the locking and bottom sealing cannot be realized

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