Air supply device for respirator mask

A technology of air supply device and respirator, which is applied in the direction of respiratory protection device, respiratory mask, respiratory protection container, etc., can solve the problems of increasing the sealing between the mask and the human face, hidden dangers, air leakage of the respirator system, etc., so as to eliminate potential safety hazards. , switching convenient effects

Pending Publication Date: 2021-01-12
FUSHUN FUYUN ANYI LIFESAVING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Repeatedly wearing the mask and plugging and unplugging the air supply valve in this way will greatly increase the seal between the mask and the human face, the air supply valve and the mask, and the medium-pressure airway, which will cause air leakage in the respirator system and bring serious hidden dangers

Method used

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  • Air supply device for respirator mask
  • Air supply device for respirator mask
  • Air supply device for respirator mask

Examples

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Embodiment Construction

[0031] The present invention will be described more fully below using examples. This invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein.

[0032] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientatio...

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PUM

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Abstract

The invention discloses an air supply device for a respirator mask, the air supply device comprises an air valve, and the air valve is provided with a change-over switch mechanism. An air bypass module is further arranged, and the air bypass module is provided with a bypass change-over switch. The bypass change-over switch controls switching of opening of one of an air bypass channel of the air bypass module or the air valve. According to the air supply device, direct switching between ambient air and a compressed air bottle is more convenient through a linkage switching mechanism, and the sealing performance of an air exchange system is prevented from being damaged. Potential safety hazards are eradicated.

Description

technical field [0001] The invention belongs to the technical field of personal respiratory protection and emergency rescue, and relates to an air supply device with ambient air bypass and an air respirator mask. Background technique [0002] The positive pressure air respirator used by emergency rescue personnel (including firefighters and ambulance personnel) is a kind of isolated respirator that uses compressed air as the breathing air source, and the compressed air used is stored in its own high-pressure gas storage cylinder , in addition to the high-pressure gas storage cylinder, the positive pressure air breathing apparatus also includes a pressure reducer, a high-pressure air duct, an alarm whistle pressure gauge, a medium-pressure air duct, an air supply valve, a mask, a backboard strap and other components, and its working process is The high-pressure gas storage cylinder installed on the backboard strap used for personnel carrying is decompressed by the pressure re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B7/04A62B9/02A62B18/02A62B18/10
CPCA62B7/04A62B9/02A62B18/02A62B18/10
Inventor 杨东星周群张然刘四海郭晓娜翁岩
Owner FUSHUN FUYUN ANYI LIFESAVING EQUIP
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