Protective mask and protective face shield isolated by positive-pressure air barrier

Abstract

The invention discloses a protective mask isolated by a positive-pressure air barrier and a protective face shield isolated by the positive-pressure air barrier. The protective mask comprises an air pressurizing and filtering device, a pressurized and filtered air conveying pipe and a protective cover. The air pressurizing and filtering device comprises an assembly machine frame, a portable powersource, a pressurizing motor, an air pressurizing device, an air filtering device and a pressurized air output opening. The air pressurizing device comprises a dynamic vortex disc, a static vortex disc, a driving eccentric shaft and an anti-rotation mechanism. The air filtering device comprises a filter element sleeve shell and a filter element. A bottom frame of the protective cover comprises a human and cover sealing fit pressing strip and wearing rope belts. The cover face of the protective cover comprises a protective sealing cover face and a protective air barrier isolation cover face which is formed by an electrostatic adsorption layer, a pressure maintaining isolation layer and an air pressure barrier layer. The mask face and the bottom frame are connected in a sealing fit mode, thebreathing space is formed between the human and the mask, the pressurized and filtered air is provided by the pressurizing device, and the protective mask is not disposable, is good in sealing performance, can effectively filter viruses and suspended micro-particles and does not generate the breathing resistance.

Description

Technical field: [0001] The invention belongs to the technical field of protection devices, and in particular relates to a protective mask and a protective mask isolated by a positive pressure air barrier. Background technique: [0002] As people pay more attention to their own health, more and more people have continuously improved requirements for inhaled air quality. However, with the rapid development of industry in recent years, a large number of harmful substances are discharged into the air, especially the recent disease-causing The new coronavirus, which is highly sexual and contagious, is mainly transmitted through droplets, making people have to face the dangerous environment of virus infection, which has caused a major impact on people's work, life, and life. We urgently need a safe, stable and good living in an air environment. At present, in the face of the ever-changing air environment outside, especially in the clinical susceptible infection prevention and co...

AI Technical Summary

Problems solved by technology

Although the existing masks can block most of the harmful substances and viruses outside the mouth and nose, which are the passages for the air in and out of the human body, and the high-grade masks are still necessary equipment for hospital clinical infection prevention and control, but because the existing masks mainly use multi-layer non-toxic The woven fabric structure is a one-time use consumable product, and a large amount of storage is required for daily use. At the same time, the higher the level of the existing mask, the better the filtering effect, but the greater the breathing resistance, resulting in poorer comfort when wearing the mask, and long-term wearing It will also cause damage to cardiopulmonary function, and it is not suitable for people who wear it for a long time and have weak cardiopulmonary function. Common medical three-layer flat masks are also poorer than three-dimensional masks. Therefore, how to overcome the shortcomings of existing masks and develop A high-grade protective mask or protective mask that is non-disposable, has good airtightness, can effectively filter viruses and suspended particles, and does not produce respiratory resistance, will have huge social and economic benefits

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