Reinforced concrete structure air defense door

Abstract

The invention provides a civil air defense door with a reinforced concrete structure. The civil air defense door comprises a door frame, a door leaf, sealing parts, a monolever interlock and hinges, wherein adhesive tape grooves used for accommodating the sealing parts are formed in the door frame, and embedded decompression bars are arranged on the door leaf which is hinged to the door frame through the hinges to enable the door leaf to rotate around a vertical shaft of the door frame; the monolever interlock arranged on the door leaf comprises an outer handle and an inner handle, and the outer handle and the inner handle are arranged on the outer side and inner side of the door leaf respectively through a first horizontal rotation mechanism and can rotate around the horizontal axis; a plurality of locks are sequentially arranged on the inner side of the door leaf in the circumferential direction of the door leaf, and each lock rotates around the horizontal axis; a plurality of connecting rods are connected to form a square with one side open, the connecting rods forming the square are arranged on the inner side of the door leaf in an integrally moving mode, one of the connecting rods is in rotary connection with the inner handle, the locks are in rotary connection with the connecting rods correspondingly, and the circumferential direction of the square is consistent with that of the door leaf. The civil air defense door is easy to operate, a sealing rubber strip can be uniformly compressed, and reliable sealing is realized.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a reinforced concrete civil air defense door suitable for underground protection engineering. Background technique [0002] Underground protective engineering, also called civil air defense fortifications, refers to underground protective buildings built separately to protect personnel and material shelter, civil air defense command, and medical rescue in wartime, as well as basements that can be used for air defense in wartime when combined with ground buildings. The door of the entrance and exit of the underground protection project is called the civil air defense door. Among the many types of civil air defense doors, the reinforced concrete civil air defense door is widely used. The control type of its opening and closing is mainly the manual control type, that is, the civil air defense door is a manual door. [0003] In the prior art, two handles are arranged on the inner si...

AI Technical Summary

Problems solved by technology

When opening or closing the door leaf, it is realized by operating two handles in sequence, and the weight of the civil air defense door can reach 1 ton. Operating the two handles in turn leads to manual operation difficulties, and it is easy to cause loosening of the contact parts of the door leaf and the door frame, which is very dangerous for the air defense door. The airtightness has adverse effects

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