Quick opening device for building fire door

Abstract

The invention discloses a quick opening device for a building fire door. The device includes a door frame and a door body. The top of the door frame is provided with an accommodating cavity for accommodating clear water. The bottom and the sides of the accommodating cavity are provided with symmetrically arranged water outlet holes. The door body is rotatably connected to the inside of the door frame through a rotating shaft. A first magnet is slidably connected to one end face, being away from the rotating shaft, of the door body. A second magnet is fixedly connected to the side wall of the door frame. The second magnet and the first magnet are in contact. The quick opening device for a building fire door can facilitate the quick opening of a fire door by people, shortens escape time of people, can alleviate the spread of fire near the door body, reduces the floating amount of smoke and extends the rescue time of the fire to a certain extent.

Description

technical field [0001] The invention relates to the technical field of fire door equipment, in particular to a quick opening device for a building fire door. Background technique [0002] A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with certain fire resistance located in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke. It can prevent the spread of fire within a certain period of time and ensure the evacuation of people. When a fire occurs, due to the limitations of the elevator, people need to Escape through the stairs, which also makes the fire doors in public places such as stairwells particularly important. However, the existing building fire doors are generally opened by one side and connected wit...

AI Technical Summary

Problems solved by technology

In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke. It can prevent the spread of fire within a certain period of time and ensure the evacuation of people. When a fire occurs, due to the limitations of the elevator, people need to Escape through the stairs, which also makes the fire doors in public places such as stairwells particularly important. However, the existing building fire doors are generally opened by one side and connected with the door frame through the lock body. When opening the fire door, it is necessary to press the handle, pull the fire door to one side or push the fire door, if the situation is more urgent and there are more people, it will consume a certain amount of time, thus prolonging the time for people to escape, so we propose A kind of quick opening device for building fire doors is used to solve the above problems

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