Dustproof mouth mask with dynamic breathing function

Abstract

The invention provides a dustproof mouth mask with a dynamic breathing function for a dust work environment. A filter material of the dustproof mouth mask adopts corrugated filter sponge, the adopted corrugated angle theta of the filter material is less than 60 DEG, a corrugated generating line is parallel to the gravity direction, and an air outlet and the downstream part of the filter material at an air inlet of the mouth mask are provided with a high-speed centrifugal fan respectively. On the premise of meeting the air flow for breathing of a human body, the effective filter area of the filter material is increased, the air speed is reduced, the flow resistance of the filter material is reduced, and the inhalation resistance is reduced. A micro electric air supplying and exhausting system and the micro high-speed centrifugal fan are adopted; and the requirement of the pressure in the inhaling process of the human body can be fully met, and the increment of the pressure in the inhaling process of the human body is controlled to be in the reasonable range at the same time. The breathing pressure difference of the novel mouth mask is controlled to be within 30 Pa, the structure design and the control of the whole system are simplified while the safety is met and the comfort is improved, and the mouth mask is small in volume, light in weight and convenient to carry.

Description

technical field [0001] The invention relates to a dust-proof mask, in particular to a dust-proof mask product with dynamic breathing used in a dust workplace. Background technique [0002] Respiratory protective equipment, especially dust masks, play a very important role in preventing dust particle pollutants from entering the human body, reducing damage to the health of dust-related personnel and preventing the spread of diseases. At present, there are many types of dust masks, each with its own characteristics and scope of use. The selection should be based on the function of the mask, the object to be protected, and the dust pollution environment in which it is located. [0003] For example, a self-priming filter mask refers to a respiratory protective product that uses the wearer's own breathing as the power to filter and purify harmful particles in the air through the mask to achieve the purpose of protection. This kind of mask can only be used in an environment that ...

AI Technical Summary

Problems solved by technology

And, the obvious shortcoming of this mouth mask is that cost is very high, because introduced highly sensitive miniature pressure sensor and pressure control mechanism

Another disadvantage is that the weight of the system is too large, and it is very inconvenient for users, especially heavy manual workers, to use an external fan and power supply system

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