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Method and device for insulating the face of person from the external environment including harmful gas

A harmful gas, environmental isolation technology, applied in respiratory masks, life-saving equipment, respiratory protection containers, etc., can solve the problems of high cost, inconvenient use, large volume, etc., and achieve the effect of simple structure, narrowed field of view, and low cost

Inactive Publication Date: 2007-09-26
颜迪忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for isolating the human body face from the harmful gas environment outside. Disadvantages such as danger to the life of the wearer may occur when the air source is disconnected

Method used

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  • Method and device for insulating the face of person from the external environment including harmful gas
  • Method and device for insulating the face of person from the external environment including harmful gas
  • Method and device for insulating the face of person from the external environment including harmful gas

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Embodiment Construction

[0021] Specific embodiment one of the present invention, with reference to Fig. 1 and Fig. 3, this device comprises a helmet 1 that can form an enclosing space on the human head, this helmet 1 forms an opening 10 in the front corresponding position of human face, in this opening 10 A downward strip air outlet 2 is formed on the top side of the helmet 1, and an air duct 3 communicating with the air outlet 2 is formed in the interlayer of the helmet 1, and the air duct 3 is connected to the pressure air source outside the helmet 1 through a pipeline 4 Pass. The strip-shaped air outlet 2 is formed by a plurality of closely arranged air outlet holes 20 . The air from the pressure source enters the air channel 3 in the interlayer of the helmet 1 through the pipeline 4, and then blows out from the bar-shaped air outlet 2, forming an air curtain in the opening 10, which is used to isolate the harmful gas environment outside from the human face .

[0022] The inner side wall of the ...

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Abstract

A method for separating face from outer harmful gas comprises that (1), setting a separating space at the face, (2) forming a wind curtain at the separating space to insulate outer harmful gas from face. And the device comprises a helm covering the head with an opening at the front of the face, a bar wind outlet downward at the top side of the opening, and a wind channel in the interlayer of the helm and communicated with the wind outlet, while the wind channel via a tube is communicated with a pressure source outside the helm. The invention uses the wind curtain to insulate face from harmful gas outside, to insulate harmful gas from breath system, without affecting vision and view sight.

Description

technical field [0001] The invention relates to a wearable respiratory system protection device, in particular to a method and a device for isolating the face of a human body from the harmful gas environment outside. Background technique [0002] Wearable respiratory system protection device mainly refers to the mask or helmet that isolates the human respiratory system and head organs from the external harmful gas environment, and is widely used in factories, mines and other harmful gas environments. Such masks or helmets usually have a seal that forms a cavity at the wearer's nose and mouth, and outside air enters the cavity after being purified by a filter. The seal is used to isolate harmful air from the surrounding environment, preventing it from entering the chamber and being inhaled by the wearer into the lungs, and the filter is used to remove harmful components in the air so that the wearer can breathe harmless air. Moreover, this kind of helmet or face shield is pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B18/04
Inventor 颜迪忠
Owner 颜迪忠
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