A clamping head capable of improving the air permeability of medical flat masks

Abstract

A clamping head that can improve the air permeability of a medical flat mask is characterized in that the upper end of the liner body is provided with a liner head, and the liner head can be folded along the second crease line; the lower end of the liner body is provided with a liner Opening, the two sides of the gasket opening are respectively provided with a first tie bar and a second tie bar; the outer end of the first tie bar is provided with a first buckle, and the outer end of the second tie bar is provided with a second buckle; A first crease line is provided at the junction of the first tie bar, the second tie bar and the main body of the liner, and the first tie bar and the second tie bar can be folded in the same direction along the first crease line; the liner The main body is rolled up in a semi-cylindrical shape in the direction opposite to the folding of the first tie bar and the second tie bar, and the first buckle and the second buckle on the first tie bar and the second tie bar are oppositely buckled together, Bend the gasket opening to form a semicircle and secure. The invention can hold up the inner cavity of the mask, obviously expand the effective inhalation area of ​​the flat mask, and improve the breathing comfort of the user.

Description

technical field [0001] The invention relates to the technical field of epidemic prevention, in particular to a clamping head capable of improving the air permeability of a medical flat mask. Background technique [0002] During the epidemic, wearing masks that meet the medical standards of YY 0469-2011 "Medical Surgical Masks" can reduce the risk of infection with the new coronavirus. In low-risk areas of the new crown, people are required to wear masks with anti-epidemic functions when traveling daily, especially when taking public transportation. [0003] However, when wearing a mask to engage in strenuous work or exercise, people's metabolism and lung capacity will increase, and the demand for oxygen will also increase. When the wearer of the mask inhales violently, negative pressure will be generated outside the mask, and the mask will stick to the nostrils around the nose, and the other parts of the mask will not be able to ventilate because they are close to the face,...

AI Technical Summary

Problems solved by technology

Although this technology can form a certain distance between the front of the nose and the mask, the main body of the liner itself is airtight. Even if the main body of the liner is provided with a plurality of air holes, the ventilation area of ​​the mask is still greatly reduced, and the improvement of the ventilation effect is not ideal. , and this technology "when wearing a mask, by clipping the ends of the left and right side ear strips into the folds inside the mask... the mask liner of the present utility model is easily fixed on the inner surface of the mask"; the left and right side ear strips If it does not have a certain hardness, the main body of the liner cannot be fixed. If it has a certain hardness, the edges on both sides of the mask will not fit well with the face and there will be gaps, and the outside air will be filtered by the mask without being filtered by the mask. user inhalation defect

[0006] The existing public technology (authorized announcement number: CN207948981U) "a mask with increased internal filter area" increases the filter area by pleating the filter layer. Although this method can increase the filter area of ​​the mask, reduce breathing resistance and improve ventilation However, it also increases the difficulty of production, increases the production cost, and increases the thickness of the mask, and the user cannot guarantee that the pleated filter layer will not be squeezed and overlapped, and the pleated filter layer will overlap after being squeezed. , the function of reducing breathing resistance and improving air permeability not only cannot be realized, but may also increase breathing resistance and reduce air permeability

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