Steel fireproof door for inflammable storage warehouse

Abstract

The invention discloses a steel fireproof door for an inflammable storage warehouse, and relates to the technical field of fireproof doors. The steel fireproof door aims at solving the locking problem. The steel fireproof door specifically comprises a door frame, door leaves, a connecting mechanism used for connecting the door frame with the door leaves, closing mechanisms used for ensuring that the door leaves are normally closed and an automatic locking mechanism used for locking the door leaves when a fire occurs, wherein the automatic locking mechanism comprises clamping blocks arranged inone of the door leaves and clamping grooves formed in the other door leaf and matched with the clamping blocks; and containing grooves are formed in the inner walls of the door leaves, and containingcylinders are fixedly arranged on the inner walls of the containing grooves. According to the steel fireproof door for the inflammable storage warehouse, by arranging the automatic locking mechanism,if the fire occurs, liquid inside the containing cylinders is heated and evaporated, therefore the internal pressure intensity of the containing cylinders is sharply increased, locking pistons push piston connecting rods to stretch out, and then the clamping blocks stretch out and are inserted into the clamping grooves, so that it is guaranteed that the two door leaves are mutually locked, and the blocking effect is safely and reliably achieved.

Description

technical field [0001] The invention relates to the technical field of fire doors, in particular to steel fire doors used for storage warehouses of combustibles. Background technique [0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. Tongtong, in the event of a fire, as a fire-resistant partition with certain fire resistance, it can prevent the flame from spreading and prevent the flow of combustion smoke, and it can also act as a seal when the air supply system is working, which can prevent the fire from spreading within a certain period of time. ensure evacuation [0003] After searching, the Chinese Patent Publication No. is CN210564213U, which discloses a steel fireproof door, including a door frame, a door, a flame-retardant coating layer, a steel plate door layer, a flame-retardant sound-insulating layer, a flame-retardant sealing strip, a door lock, and a door ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned patent has the following disadvantages: the fire door does not have a device that can select whether to lock according to whether a fire occurs, because when a fire occurs, the temperature of the fire place rises, and the combustion will produce a large amount of gas, which makes the indoor pressure larger and the airflow will be larger. Discharge from the inside out, so that the fire door cannot be closed due to the influence of airflow, and it loses its barrier effect

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