A fire door with fire extinguishing function

Abstract

The invention discloses a fire door with fire extinguishing function. The fire door comprises a door frame, a door body hinged inside the door frame and provided with a cavity, a water storage tank arranged on the door frame, and a door body arranged in the cavity of the door body. An air suction assembly, an automatic valve unit for pressure relief and water addition; the filling in the cavity of the door body is water, and the air inlet in the cavity of the door body is communicated with the external space of the door body through the air suction assembly, so The air outlet in the door body cavity is communicated with the external space of the door body through the automatic valve unit, the water inlet in the door body cavity is communicated with the water outlet of the water storage tank through the automatic valve unit, and the water inlet in the door body cavity is communicated with the water outlet of the water storage tank through the automatic valve unit. The water outlet is communicated with the outer space of the door body through the nozzle.

Description

technical field [0001] The invention relates to a fire door, in particular to a fire door with fire extinguishing function. 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. They are an important part of fire protection equipment and an important part of social fire protection. It is a fire partition with certain fire resistance, such as fire compartments, evacuation stairwells, vertical shafts, etc. [0003] In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of people. [0004] When a fire occurs, people need to evacuate quickly, and the fire door needs to put out the fire by itself, so as to maintain its safe passage. [0005] The publication number is CN210396560U. In the util...

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Problems solved by technology

[0005] The publication number is CN210396560U. In the utility model named "fire door", the pressure generated by the rise of the water temperature in the door body will push the pressure relief rod to open the pressure relief hole, and at the same time, the water discharge hole will be opened through the water discharge rod to drain and exhaust. The disadvantages are: 1. The rise of the water temperature in the door body produces steam and thus pressure. If the door body temperature is too high, it will cause great damage to the door body, shorten the service life of the door body, and it is inconvenient for the staff to approach the door to control; 2. The automatic water inlet valve passes through The connected floating block adds water to the door body, and the floating block is easily out of control due to the influence of the water level, causing the automatic water inlet valve to open the water inlet pipe to add water with low temperature into the door body, resulting in insufficient pressure in the door body, unable to discharge the pressure in time, resulting in deformation of the door body

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