Breathing one-way air inlet mechanism of building fire indoor life-saving ventilating pipe

Abstract

The invention discloses a telescopic ventilating pipe type building fire indoor life-saving device, and relates to life saving of building fire indoor personnel. When a fire happens, if only toxic gas and smoke are permeated indoors and / or oxygen lacks, external open fire can be blocked; and at higher risk of escaping from a window or a door, the telescopic ventilating pipe type building fire indoor life-saving device in the prior art can be used for life saving, but when the adopted pipe is long, the breathing resistance is high, so that the suction quantity of fresh air is reduced, breathing is unsmooth, free breathing is difficult, certain indoor toxic gases are naturally easily sucked, and life-saving reliability and safety are affected to a certain degree. An electric blower for blowing air to the indoor in single direction is added in the conventional telescopic ventilating pipe, and outdoor fresh air is forcibly blown into a room along a pipeline, so that the problems can be solved, and the cost is increased little. Motor power is supplied by a battery and / or a storage battery and / or a mains supply device.

Description

[0001] technical field [0002] The invention discloses a breathing one-way valve mechanism for an indoor life-saving ventilator used in a building fire, and relates to an indoor life-saving device in building fire fighting. Background technique [0003] When a building fire breaks out, if the room can still block the open flames outside except for infiltration of toxic gas, smoke and / or lack of oxygen, and the danger of escaping from the window or door is greater, for the lifesaving of this kind of fire scene, it is now There is only a kind of retractable ventilator type building fire indoor life-saving device in the prior art. During use, the indoor personnel will pull out the relatively small-diameter tubes of the telescopic ventilator step by step and lead them to the outside to have fresh air and put them on as if using a rod antenna. Breathe through the breathing joint to prolong the waiting time for rescue. However, if the device uses a long ventilation tube with m...

AI Technical Summary

Problems solved by technology

However, if the device uses a long snorkel with many segments, after wearing the breathing connector, the inhalation and exhalation resistance will be greater due to the longer tube, resulting in a decrease in the intake of fresh air and poor breathing, and it is naturally easy to inhale. Toxic gas in the room makes it difficult to breathe freely, which affects the lifesaving effect to a certain extent

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