Civil air defense door

Abstract

The invention relates to a civil air defense door. The civil air defense door comprises a door frame and a door leaf, wherein the door leaf is hinged to the door frame, a closed structure is arranged between the door frame and the door leaf, a groove of the door leaf is formed in the periphery of the door leaf, a containing groove is formed in the upper side of the door frame, a water absorption base plate which is horizontally arranged is slidably connected into the containing groove, one side of the water absorption base plate can be inserted into the groove, a water tank is fixedly arranged on the upper side of the door leaf, water guide pipes are vertically and fixedly connected to the positions, corresponding to the two ends of the water absorption base plate, of the water tank, water outlet holes are formed in the sides, close to the water absorption base plate, of the water guide pipes, rotating shafts are rotationally arranged on the upper sides, corresponding to the water outlet holes, of the water guide pipes, valve plates are fixedly connected to the rotating shafts, sliding grooves are horizontally formed in the two ends of the water absorption base plate, connecting rods slidably connected into the sliding grooves are fixedly connected to the end parts of the rotating shafts, and a first temperature sensing glass bulb is arranged in the door frame. The civil air defense door has the effect of effectively preventing the penetration of dense smoke.

Description

technical field [0001] The present application relates to the field of civil defense facilities, in particular to a civil defense door. Background technique [0002] The civil air defense door is the door of the entrance and exit of the civil protection project. The classification of the civil air defense door is relatively clear. There are ordinary single and double protective airtight doors and airtight doors, and a variety of civil air defense equipment such as single and double protective airtight doors and airtight doors with living thresholds. Civil defense doors can also be divided into explosion-proof doors, fire doors, etc. according to the different needs of use, and fire doors are now the most common civil defense doors. [0003] The existing authorization announcement number that can be referred to is: the Chinese invention patent of CN105089461A, which discloses a kind of steel and wood heat insulation fireproof door, including door frame and door leaf. The doo...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that when a fire door is in danger, although it can achieve fire prevention, there is often a situation where thick smoke penetrates from the gap between the fire door and the door frame.

Images