Fireproof door capable of preventing accidental closing

Abstract

The invention discloses a fireproof door capable of preventing accidental closing. According to the fireproof door capable of preventing accidental closing, a first cavity is formed in the upper doorframe, a rotating part is arranged in the first cavity, a winding reel is arranged above the rotating shaft, the winding reel is connected with a first magnetic part through a first pull rope, and when the rotating speed is too high, when a door plate is closed, the second magnetic part does not slide together with the first magnetic part, a third magnetic part is arranged on the outer side of a groove, a fourth magnetic part and the third magnetic part which are arranged on the door plate repel each other to rebound the door plate, and when the door is closed at a low speed, the first magnetic part and the second magnetic part move together to move the third magnetic part into the groove. At the moment, the door can be normally closed, the door plate is prevented from being accidentally closed when ventilation is needed, and ventilation is achieved all the time.

Description

technical field [0001] The invention relates to the field of door technology, in particular to a fireproof door that prevents accidental closing. 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. In addition to the functions of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke diffusion. In order to prevent the spread of the fire and ensure the evacuation of people, some families now install fire doors in the rooms in order to take precautions. [0003] In the room, ventilation is usually required. Ventilation generally refers to opening the windows and doors on the same side. When no one is at home, the door is often closed accidentally by the wind blowing in from the window, so that the ventilation effect cannot be achieved. Contents of the invention [0004] The invention aims at the deficiencies in...

AI Technical Summary

Problems solved by technology

[0003] In the room, ventilation is usually required. Ventilation generally refers to opening the windows and doors on the same side. When no one is at home, the door is often closed accidentally by the wind blowing in from the window, so that the ventilation effect cannot be achieved.

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