Fireproof door with smoke flow blocking structure

Abstract

The fireproof door with the smoke flow blocking structure comprises a fireproof door frame and a fireproof door plate, one side of the fireproof door plate is rotationally connected with the fireproof door frame, a mounting plate is fixedly connected to the side, away from a rotating shaft of the fireproof door plate, of the top of the fireproof door frame, a connecting cover is fixedly connected to the mounting plate, and a spring winding wheel is rotationally connected to the top of the connecting cover; a trapezoidal connecting block is fixedly connected to the bottom of a connecting rope of the spring winding wheel, a U-shaped connecting plate is fixedly connected to the position, opposite to the trapezoidal connecting block, of the fireproof door plate, the trapezoidal connecting block connected with the spring winding wheel is arranged on the door frame, and the trapezoidal connecting block is limited through a wax rod. When a fire disaster happens, the wax rod is melted through high temperature, or the smoke sensor senses smoke, the heater is started, the wax rod is melted, the trapezoidal connecting block 7 loses limitation and falls into the U-shaped connecting plate below, the fireproof door plate is connected with the spring winding wheel, and the closing speed of the door plate is increased.

Description

Technical field: [0001] The invention belongs to the technical field of protective equipment, and particularly relates to a fire door with a smoke blocking structure. Background technique: [0002] Fire doors refer to doors that can meet the requirements of fire resistance and heat insulation within a certain period of time. It also has the function of preventing the spread of fire and the spread of smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel. It is a basic fire-fighting equipment. [0003] In the prior art, in order to ensure that the door panel can be quickly closed, a traditional fire door is usually provided with a door closer between the door panel and the door frame. When there is no fire, the door closer will also work, which makes it difficult to open the fire door. , Some people often block the fire door with something to facilitate passage, resulting in the fire door not working properly when a...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in order to ensure that the door panel can be closed quickly, the traditional fire door is usually equipped with a door closer between the door panel and the door frame. When there is no fire, the door closer will also work, which makes it difficult to open the fire door. , people often block the fire doors with things to facilitate passage, resulting in the fire doors not working properly when a fire breaks out, causing hazards

Images