A double flat plate-supported three-dimensional mouth mask and a manufacture method therefor

Abstract

The invention provides a double flat plate-supported three-dimensional mouth mask which comprises a filter material component, a face connecting component, an elastic planar supporting frame, two tying belts and a tying belt supporting plate in the shape of a rectangular flat plate. The tying belts are hitched to hitching portions of the tying belt supporting plate; the peripheral edge of the elastic face connecting component is fixedly combined with the peripheral edge of the filter material component to form a mouth mask body having an internal support space and a turned edge shape; the outer periphery of the supporting frame matches the peripheral edge of the internal support space in shape; the size of the outer peripheral edge of the supporting frame is greater than the size of the peripheral edge of the internal support space; the supporting frame is detachably installed in the internal support space; the peripheral edge of the supporting frame is pressed against a combination edge of the internal support space formed by combining the filter material component and the face connecting component to form an outward-protruding three-dimensional mouth mask structure. The invention also provides a manufacture method for the double flat plate-supported three-dimensional mouth mask. The double-flat plate-supported three-dimensional mouth mask has larger filter area and filter space, is comfortable to wear, and is convenient to machine, pack and transport.

Description

technical field [0001] The invention relates to a mask, in particular to a three-dimensional mask supported by two flat plates, which has a large filtering space, does not directly hang on the user's head and ears, and is convenient for batch automatic production and packaging, and a manufacturing method thereof. Background technique [0002] The main purpose of the mask is to isolate harmful substances transmitted by gas, such as fine particles mainly PM2.5 and viruses transmitted in aerosol state. Generally speaking, masks have a certain gas leakage rate. The corners of the wearer's mouth, chin and both sides of the bridge of the nose are the main places where leakage is likely to occur. The discontinuity of the contact surface between these areas and the mask reduces the airtight effect. One way to increase the airtight effect is to tighten the straps of the mask so that the skin of the face is sunken to achieve a seal. This way the user feels very uncomfortable to wear, ...

AI Technical Summary

Problems solved by technology

The masks of these two schemes are all approximately hemispherical three-dimensional structures. The disadvantage is that the packaging and storage take up a lot of space, and the three-dimensional support frame increases the difficulty of production; When the fixed size is too small or too large, it is difficult to achieve a tight fit

Another disadvantage of the above-mentioned three-dimensional mask is that the three-dimensional mask is equipped with a ring-shaped face-fitting part that fits the face, which blocks the filter part structurally, and makes the ear straps unable to be processed automatically, requiring manual welding of the ear straps , which limits the capacity of the

[0004] Among the existing masks, the straps of general daily masks are hung on the ears. In order to avoid damage to the ears after wearing the masks for a long time, there are also head-mounted masks that hang the straps on the neck or the back of the head. ; However, the head-mounted mask will directly strangle the neck, back of the head and face, and wearing it for a long time will cause discomfort in the corresponding parts

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