Fire escape door and its manufacturing process

Abstract

The invention relates to a fire-proof passage door and its manufacturing process. The invention comprises a door frame, one side of the door frame is provided with a container, and a door leaf is placed in the container, and the door leaf is hinged to the door frame; The sealing strips are all provided with ring grooves, and the ring grooves of the two fireproof expansion sealing strips are spliced ​​with each other to form a water channel; there is a water tank inside the door frame, and a water pipe connected to the ring groove is arranged on the upper side of the door frame, and a hollow support plate is horizontally arranged in the middle of the water pipe. The upper end of the water pipe is provided with a necking tube, and the upper end of the water pipe is also provided with a plug, the diameter of which is smaller than the diameter of the water pipe, and the hollow support plate and the plug are provided with a temperature-sensitive glass bulb that can push, block and close the necking tube under normal conditions. ; The water outlet of the water tank is communicated with the necking pipe. The present invention has the effect of preventing the penetration of dense smoke while effectively achieving the effect of fire prevention.

Description

technical field [0001] The invention relates to the technical field of fire doors, in particular to a fire door and its manufacturing process. Background technique [0002] Normally open fire doors should be used for fire doors installed in buildings where people often pass. Normally open fire doors should be able to close automatically in the event of a fire, and should have the function of signal feedback. Normally open fire doors should be used for the fire doors of the evacuation passages at the fire compartments or fire compartments. This regulation is based on the fact that the evacuation passages are the main passages for people to pass under normal conditions. [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 door frame is hinged with the door leaf through fireproof hinges. ...

AI Technical Summary

Problems solved by technology

[0004] The above is a kind of fire door. Although this kind of fire door can achieve fire prevention when danger occurs, there is still a situation where thick smoke penetrates from the gap between the fire door and the door frame.

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