Three-dimensional mask supported by two flat plates and manufacturing method thereof

Abstract

A three-dimensional mask supported by two plates includes a filter material part, a joint part, an elastic planar support frame, two straps and a strip-shaped flat-shaped strap support plate; the strap is hung on the strap support plate On the hooking part; the peripheral edge of the elastic joint part is fixedly joined with the peripheral edge of the filter material part to form a mask body with an internal support space in the shape of a flip button; the outer peripheral shape of the supporting frame matches the peripheral edge of the internal supporting space, and the supporting frame The size of the outer periphery is greater than the size of the periphery of the inner support space; the support frame is detachably installed in the inner support space, and the periphery of the support frame is against the joint edge of the inner support space formed by the combination of the filter material part and the joint part, A three-dimensional mask structure protruding outward is formed. Also disclosed is a method for manufacturing a three-dimensional mask supported by two flat plates, which has a larger filtering area and filtering space, is comfortable to wear, is convenient to process, and is convenient for packaging and transportation.

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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