Fireproof door capable of automatically closing

Abstract

The invention discloses a fireproof door capable of automatically closing. The fireproof door comprises a doorframe, a door plate, a motor, an electric control switch, a temperature sensor, and a comparison circuit. The door plate is rotatably matched with the side edge of the door frame, the motor is used for driving the door plate to rotate, the electric control switch is used for controlling the motor, the temperature sensor is mounted on the door plate, the comparison circuit is used for acquiring signals of the temperature sensor, a signal output end of the comparison circuit is connected with a control signal input end of the electric control switch. By the aid of the fireproof door, temperature changing around the door plate can be acquired. When in fires, the start motor shuts off automatically according to surrounding temperature changing, and the fireproof door can have functions of fireproofing and anti-flaming with no one attending.

Description

technical field [0001] The invention relates to a door, in particular to a fireproof door with fire-resistant and heat-insulating functions. Background technique [0002] Fire doors are widely used in the field of construction, and are installed at the entrance and exit of passages or spaces with fire protection requirements. The door panels of existing fire doors are mostly five-layer structures, consisting of a refractory filler layer, a refractory plate layer on both sides of the refractory filler layer and The surface decoration layer located on the side of the refractory plate layer facing away from the refractory filler layer is composed of a rectangular support frame around the periphery of the refractory filler layer in order to support and facilitate the formation of the refractory filler layer. [0003] The surface decoration layer can be made of natural wood or synthetic materials according to the needs of aesthetics, etc., and the technical requirements are not h...

AI Technical Summary

Problems solved by technology

[0004] The door shaft of the existing fire door can be automatically opened and closed by the motor, but the operator needs to control the switch. When a fire breaks out on the scene, if there is no operator nearby or the operator is difficult to access the switch, the fire door cannot be closed. Give full play to its proper fire and flame retardant function

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