Building civil air defense door

Abstract

The invention relates to the technical field of building doors, and particularly relates to a building civil air defense door. The building civil air defense door comprises a base, a door frame, a door body, a doorsill, a first clutch connecting structure and a second clutch connecting structure; the door body and the doorsill are each of a two-half structure; the first half doorsill is connected with the first side of the door frame through a first rotary shaft, and the second half doorsill is connected with the second side of the door frame through a second rotary shaft; the first clutch connecting structure is used for connecting or separating the first half door body and the first half doorsill, and when the first half door body and the first half doorsill are connected, the first half door body can drive the first half doorsill to be opened and closed synchronously; and the second clutch connecting structure is used for connecting or separating the second half door body and the second half doorsill, and when the second half door body and the second half doorsill are connected, the second half door body can drive the second half doorsill to be opened and closed synchronously. According to the technical scheme, the service life of the doorsill can be prolonged on the basis that the wartime mounting efficiency of the doorsill is improved.

Description

technical field [0001] The invention relates to the technical field of building doors, in particular to a building air defense door. Background technique [0002] The civil air defense door is the door of the entrance and exit of the people's protection project. The characteristic of the living threshold is that the threshold is not installed at ordinary times, the ground is flat, which is convenient for personnel and vehicles to pass, and the threshold is quickly installed in wartime to meet the requirements of protection and airtight functions, and quickly realize the conversion of peacetime and wartime functions. This type of door is suitable for the combination of peacetime and wartime The entrance and exit of civil air defense projects such as underground shopping malls, hospitals, warehouses, and underground parking garages. [0003] Such as figure 1 As shown, a kind of building air defense door is provided in the prior art, which includes a base 1, a door frame 2 in...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned civil air defense doors have at least the following defects: for the civil air defense doors, the threshold only plays a role in wartime, and does not need to be installed at all in peacetime, so as to facilitate the passage of personnel and vehicles

The above-mentioned threshold is linked with the door body 4, and the threshold also moves synchronously with the opening and closing of the door body 4 in normal times. Although this reduces the installation time of the threshold in wartime, it also causes the threshold to open and close too frequently and is prone to damage. , so it is urgent to improve the

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