Respirator with expiratory valve

An exhalation valve and mask technology, applied in the field of masks, can solve the problems of high processing cost, complex structure of one-way exhalation valve, and limited application range.

Inactive Publication Date: 2013-07-24
SHENZHONGHAI MEDICAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the structure of the one-way exhalation valve in this technical solution is complicated...

Method used

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  • Respirator with expiratory valve
  • Respirator with expiratory valve
  • Respirator with expiratory valve

Examples

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Embodiment Construction

[0026] Such as figure 1 , figure 2 Shown, a kind of comfortable mouth mask comprises three-dimensional cup cover 1 and the fixed belt 2 that is connected with described three-dimensional cup cover 1, and described fixed belt 2 comprises headband 21 and neck strap 22, and described headband 21 And the neckband 22 is an X-shaped cross structure on the face of the human body, and the X-shaped cross structure is arranged on the left and right faces of the human body. The three-dimensional cup cover 1 includes a non-woven fabric layer and a filter layer superimposed on each other, a concave support frame 12 is provided in the three-dimensional cup cover 1, and the non-woven fabric layer includes a front non-woven fabric layer 11, a middle non-woven fabric layer Woven fabric layer 13 and back nonwoven fabric layer 15, described three-dimensional cup cover comprises successively stacked front nonwoven fabric layer 11, support frame 12, middle nonwoven fabric layer 13, filter cotton...

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Abstract

The invention discloses a respirator with an expiratory valve. The respirator comprises a three-dimensional cup and the respiratory valve which is arranged on the three-dimensional cup, wherein the respiratory valve consists of a wedged fine groove; the wedged fine groove extends in the direction away from the face of a human body; the tail end of the wedged fine groove in the extension direction is provided with two thin sheets which are tightly pressed against each other in the case of no external force; and the respiratory valve is arranged at one end,close to the chin of the human body, of the three-dimensional cup. The respirator with the expiratory valve is comfortable to wear, has a good filtering effect and has a simple structure so as to be convenient to machine and use widely.

Description

technical field [0001] The invention relates to a mask, in particular to a mask with an exhalation valve. Background technique [0002] In daily life and medical field, the application of mask is more and more extensive. Existing masks are mainly planar structures. The Chinese invention patent with the application publication number CN101816466A disclosed a "bowl-shaped three-dimensional folding dustproof mask" on September 1, 2010. The technical solution is: a bowl-shaped three-dimensional folding dustproof mask, the inner layer of the mask is It is a non-woven fabric skeleton, the outer layer is a face cloth, and the inner and outer layers are filter cloth and mesh cloth. There is a horizontal welding line in the middle of the mesh cloth, which is connected to the horizontal welding line and extends downward to the edge of the mouth. A vertical welding line can be folded along the horizontal welding line and the vertical welding line. Silicone rubber is pasted on the bri...

Claims

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Application Information

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IPC IPC(8): A41D13/11
Inventor 邓美生
Owner SHENZHONGHAI MEDICAL INC
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