Vibrating alarm air respirator

Abstract

The invention relates to an air respirator. The air respirator comprises an air supply source and a vibrating alarm device, wherein the air supply source is used for supplying air to the air respirator. The air respirator is characterized in that: when the input pressure of the air from the air supply source declines to be lower than the predetermined input pressure, the vibrating alarm device generates vibration to give an alarm to a user.

Description

Technical field [0001] The invention relates to an air respirator, in particular to an air respirator with an alarm function. Background technique [0002] Air respirator is a kind of equipment mainly used to provide effective respiratory protection to prevent inhalation of toxic and harmful substances when the user enters an oxygen-deficient, toxic and harmful gas environment. One application area where air breathing apparatus is used very frequently in such places is the fire rescue scene. [0003] During the use of the air respirator, when the air respirator may not be able to provide effective respiratory protection due to insufficient air pressure, it is necessary to send an alarm message to the user in time so that the user can grasp the air source of the air respirator in time Situation, and promptly evacuate from the dangerous environment or take other countermeasures. Since air respirators are usually used in very dangerous environments such as oxygen-deficient environme...

AI Technical Summary

Problems solved by technology

In this case, for example, when a team of firefighters is working on the same scene, the alarm sounds from the respective air breathing apparatus can be very confusing

In addition, there are often many other rescue equipment at the rescue site, and a large part of these equipment also have similar buzzer alarm devices. Therefore, in such a noisy environment, air respirator users must accurately identify whether the alarm sound is It is very difficult for the air breathing apparatus used by oneself to emit

[0005] For example, the traditional alarm is to emit a sound greater than 90 decibels when the gas pressure in the air respirator cylinder is reduced to 5.5MPa±0.5MPa, which is transmitted to the ears of the surrounding people in the form of sound waves, but because each air breath The alarm sounds of respirators are very similar. When several users are in the same working environment, when one of the air respirators of one of them emits an alarm sound, the person who hears the alarm sound cannot directly judge whose air breathing apparatus is breathing. alarm

In particular, in addition, firefighters are usually too nervous during emergency rescue, and the sound alarm generated by the insufficient air source of the air respirator cannot immediately produce conditioned reflexes, which may cause hidden dangers to the safety of firefighters.

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