CN106666872A - Three-dimensional foldable mask - Google Patents

Abstract

A three-dimensional folded mask, including a mask made of at least one layer of filter sheets, the mask is provided with folds, and is characterized in that the folds are provided with creases and creases, and the creases are formed by at least two line segments connected end to end, Folds and creases are distributed on the mask starting from the apex of the fold line crease. There are more than two folds creases starting from the apex of each crease line crease. Fold along the fold crease to smooth the folds. In the folded state, the edges of the mask are glued around after folding. When in use, the folded surface can form an outward protruding space at the apex of the fold line. The shape is stable, the airflow is smooth, and the filtering performance of the filter sheet can be balanced, which improves the overall filtration. Effect.

Description

Three-dimensional folding mask

technical field

The present invention is a divisional application for an invention patent application with application number 2014108254203, the application date is December 28, 2014, and the invention name is "three-dimensional sheet-type folding low-pressure mask". The present invention relates to a mask, in particular to a Three-dimensional folding mask.

Background technique

With the improvement of people's health awareness, masks have been used as a protective tool in various fields of our lives, such as medical treatment, chemical industry, furniture manufacturing and other industries. Today, we have to wear masks to travel when the environment is polluted in the process of industrialization To avoid smog damage, the main function of these masks is to isolate and filter microparticles and viruses, so as to avoid direct inhalation of microparticles and viruses into the lungs and cause negative effects on personal health. There are many kinds of existing masks, and the most commonly used ones are still low-cost folded sheet masks, which are composed of several layers of filter sheets stacked on top of each other. Just open it, because the length of each fold in the horizontal direction is equal to the horizontal length of the upper and lower edges of the filter, and the folded length cannot be adjusted, so it is limited by it and cannot obtain a larger depth space; Pull down the upper edge of the filter and the horizontal folds tend to be tight, which will make the horizontal folds closer to or press on the nose and mouth. Since the filter is pressed on the nose and mouth, the space between the nose and the nose is narrow, resulting in poor filtration The pressure difference between the inside and outside of the filter facing the mouth and nose is higher than that away from the mouth and nose. The unbalanced pressure distribution makes the air flow and dust accumulation in different parts of the filter different, causing the filter to not be able to play its filtering performance in a balanced manner. The position directly facing the mouth and nose has high pressure difference between inside and outside, high flow rate, and a lot of dust accumulation, which greatly increases the penetration probability of micro particles on the filter facing the mouth and nose under the high-speed airflow; in addition, the shape and structure stability of the filter is poor, and the distance from the mouth and nose The closeness makes the airflow have a greater impact on the filter when breathing, and the vibration deformation will also increase the probability of particle penetration. When inhaling, the filter will be closer to the nostril under the action of suction, resulting in a higher pressure difference between the inside and outside of the nostril; the horizontal fold is tight In the tense state, the contact area between the filter and the face will be increased, and the effective filtering area of the filter will be reduced, which will cause the feeling of suffocation due to poor air flow, especially when the micropores are shrunk very small to improve the filtering effect, the suffocation phenomenon is more obvious ; and the tightness of the upper edge will also cause gaps between the upper edge of the filter sheet and the alar fossa, causing dust to enter the inside of the mask from the gap during inhalation and affect the filtering effect. These problems still need to be improved by technology.

Contents of the invention

In view of the above problems, the invention provides a three-dimensional folding mask.

The technical solution adopted in the present invention is: a three-dimensional folding mask, including a mask made of at least one layer of filter sheets, the mask is provided with folds, and is characterized in that the folds are provided with straight line creases, crease line creases and pleat creases, The mask is folded forward along the straight line crease and then reversely folded back along the fold line crease. The fold line crease is composed of at least two line segments connected end to end. There are more than two creases starting from the apex of each crease line. Fold along the creases to smooth out the creases. After folding, each layer is in a stacked state of flat sheets. After folding, the edges of the mask are glued together.

Further, the straight line crease and the fold line crease intersect at the edge of the mask.

Further, there is a gap between the straight line crease and the crease line crease on the edge of the mask.

Further, the folds are formed into a group and arranged on one side of the mask.

Further, the folds are divided into two groups, which are respectively arranged on both sides of the mask.

Further, the folds are larger than two groups and distributed around the mask.

Further, the alar fossa on both sides of the nose bridge on the upper edge of the mask is connected with sealing wings protruding outward.

Further, the mask is provided with reciprocating folding.

Further, supporting ribs are provided beside the creases.

Further, the creases of the two folds starting from the apexes of the creases of the creases are bonded together as one.

According to the present invention, the creases are folded and bonded around to form a sheet mask. When in use, stretching and folding can form an outward protrusion space at the top of the crease. The shape and structure are stable under the support of the crease and the adjacent surface. Pulling down the protruding space can also keep the shape stable, will not compress the mouth and nose, the vibration deformation is small, the contact area between the filter and the face is small, the effective filtering area is large, the air flow is smooth, the air flow of the filter is balanced, and the filter is filtered everywhere The performance can be balanced. Under the pull of the fixing belt and the formation of a sharp space in the nose, the position of the upper edge of the filter sheet and the position of the alar of the nose will be moved closer to the alar fossa, which improves the anti-leakage performance and improves the overall filtering effect. The existence of its folds also increases the effective filtering area, and has the advantage of low cost of sheet masks.

Description of drawings

Fig. 1 is a schematic diagram of the structure of each crease when the filter sheet is unfolded and viewed from the front according to Embodiment 1 of the present invention.

Fig. 2 is a front view structural diagram of Embodiment 1 of the present invention after being folded.

Fig. 3 is a schematic diagram of the folded rear view of Embodiment 1 of the present invention.

Fig. 4 is a schematic diagram of edge cutting according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of an embodiment of the present invention after edge shear bonding.

Fig. 6 is a schematic diagram of the structure of each crease when the filter sheet is unfolded and viewed from the front according to Embodiment 2 of the present invention.

Fig. 7 is a schematic diagram of the structure of each crease when the filter sheet is unfolded and viewed from the front according to Embodiment 3 of the present invention.

Fig. 8 is a schematic diagram of the structure of each crease when the filter sheet is unfolded and viewed from the front according to Embodiment 4 of the present invention.

Fig. 9 is a schematic diagram of the structure of each crease when the filter sheet is unfolded and viewed from the front according to Embodiment 5 of the present invention.

Fig. 10 is a schematic diagram of the structure of each crease when the filter sheet is unfolded and viewed from the front according to Embodiment 6 of the present invention.

Fig. 11 is a schematic diagram of the structure of each crease when the filter sheet is unfolded and viewed from the front according to Embodiment 7 of the present invention.

Label name in the figure: 1 straight line crease; 2, 3, 12, 13, 14 fold line crease; 4, 5, 6, 7, 15, 16 fold crease; 8 fixing belt; 9 sealing wing; 10, 11" Zigzag fold; 12 cutting lines.

detailed description

Embodiment 1 of the present invention, as shown in Figures 1 to 5, the three-dimensional folding mask is provided with a mask made of more than one layer of filter sheets, the mask is provided with folds, and the folds are provided with a straight line crease 1, a fold line crease 2,3 and fold creases 4, 5, 6, 7, these creases are marked with dotted lines in the figure, where the long dotted line is the valley crease, the dotted dotted line is the peak crease, the arrow is the folding direction, and the cross dotted line arrow inside the edge It is forward folding, and the arrow crossing the edge is reverse folding. From the perspective of Figure 1, the bottom crease is folded forward into a valley, and the peak crease is reversely folded into a peak. The mask is folded forward along the straight line crease 1 and then along the Fold line creases 2 and 3 are reversely folded back. The fold line creases are formed by connecting two line segments. The fold line creases are distributed on the reversely folded mask from the crease apex of the fold line creases. In this embodiment, there are four fold creases. The creases are folded to smooth out the folds, and the folded layers are stacked in flat sheets. After folding, the front view is shown in FIG. Glue the surrounding edges together, and add fixing belts 8 on both sides to form the shape shown in Figure 5. The shape of the edges can be set according to the shape of the face. In this embodiment, when cutting, there are seals protruding outward at the positions of the nasal alar fossa on both sides of the upper edge of the nose bridge of the mask. Wing 9, during implementation, it is also possible to use soft metal strips or sealing cotton to seal the alar fossa without sealing wings; the process shown in the illustration of this embodiment is to fold first and then trim to shape, and the filter sheet can also be cut into shape according to the unfolded shape during specific implementation , and then fold the edge; according to the present invention, the creases are folded and glued around to form a sheet mask, which can be stretched and folded during use to form an outward sharp protrusion space at the apex of the crease line. The sharp space imitates the shape of the nose, just Covered at the tip of the nose, the distance between the filter and the mouth and nose is moderate, and the breathing buffer space is sufficient but not too large. The shape and structure of the space are stable under the support of the creases and adjacent surfaces. Under the pull of the fixing belt, the protruding space can also maintain a stable shape, will not compress the mouth and nose, has small vibration deformation, small contact area between the filter and the face, large effective filtering area, smooth air flow, and balanced air flow around the filter. The filtration efficiency of each place can be balanced. Under the pull of the fixing belt, the position of the alar on the upper edge of the filter will be closer to the alar fossa, which improves the anti-leakage performance and improves the overall filtering effect; the existence of its folds also increases the effective filtration. area, and has the advantage of low cost of sheet masks.

Embodiment 2 of the present invention is shown in Figure 6. The difference between the three-dimensional folding mask and Embodiment 1 is that the folds are divided into two groups. Expand to form two raised spaces, one for the nose and the other for the mandible. It has the advantages of Embodiment 1 and the space layout is more reasonable, and it has better adaptability to the contour of the face; this embodiment can also be rotated by 90 The degree makes the two protruding spaces arranged side by side for use. The filter sheet in the picture is square without shaping, and it can be cut and formed before being folded and sealed.

Embodiment 3 of the present invention is shown in Figure 7. The three-dimensional folding mask is the same as Embodiment 2. It is folded in two groups. The difference is that the two groups of folds no longer share a straight line, but each has its own straight line. The symmetrical distribution maintains a gap, which has the same advantages as the second embodiment, and the upper and lower dimensions of the mask can be adjusted through the interval between the two sets of folds.

Embodiment 4 of the present invention is shown in Figure 8. The three-dimensional folding mask is provided with a reciprocating "zigzag" fold 10 between the two groups of folding gaps in Embodiment 3 to further adjust the mouth space of the mask, and there is no filter friction on the lips when speaking. Obstruction of oppression. In this embodiment, only one zigzag fold is used. Multiple zigzag folds can also be used during implementation. Adopt a positive and negative arrangement.

Embodiment 5 of the present invention is shown in Figure 9. Unlike the above-mentioned embodiments where the straight line creases and crease line creases have gaps on the edge of the mask, the straight line creases and crease line creases of the three-dimensional folding mask in this embodiment intersect at the edge of the mask. The sharp protrusion space can be generated, and the reciprocating "zigzag" fold 11 is arranged on the mask, which can adjust the mouth space, and the application effect is better.

Embodiment 6 of the present invention is shown in Figure 10. The face shield of the three-dimensional folding mask is provided with three groups of folds, one group is on the top, one group is on the lower left, and one group is on the lower right. 12, 13, and 14 are composed of three end-to-end connections, and the creases at the apex of each fold line are two folds. There are two initial folds and creases. In this embodiment, the gap between the mask and the face can be further adjusted to make the spatial shape more stable and the effective filtering area larger.

Embodiment 7 of the present invention is shown in Figure 11. The three-dimensional folding mask is also provided with three groups of folds as in Embodiment 6. The three groups of folds are arranged in a uniform array in the circumferential direction. There are four creases at the top of the crease, which has the same effect as in Embodiment 6; four or more folding arrays can also be used during implementation.

When the present invention is implemented, the initial fold creases of each fold line crease vertex can be not only two or four, but also can be set to other numbers according to the layout requirements. The resulting fold allowance; the sealing wing on the upper edge of the mask can be elastically bent inwards to fill the gap between the upper edge and the alar fossa, and the sealing effect is better; a one-way breathing valve can also be added on the mask to make breathing more labor-saving. It can also be pleated on the edge of the mask according to the shape of the face to create a more suitable space, so that the peripheral seal and fit are better; Folding, support can be added at its position; support can also be added to other parts of the mask, and the support can be cured rubber strips or heat-hardened strips; a one-way valve can also be set on the mask to limit the one-way flow of respiratory airflow.

Claims (8)

1. A three-dimensional folding mask, comprising a mask made of at least one layer of filter sheets, the mask is provided with folds, characterized in that the folds are provided with creases and creases, and the creases are at least connected end to end by two line segments The folds and creases are distributed on the mask starting from the top of the fold line crease. There are more than two folds and creases starting from the top of each fold line crease. Fold along the folds and creases to smooth the folds. The sheets are stacked, and the edges of the mask are glued after folding. 2. The three-dimensional folding mask according to claim 1, characterized in that said folding is a group and is arranged on one side of the mask. 3. The three-dimensional folding mask according to claim 1, wherein said folding is divided into two groups, which are respectively arranged on both sides of the mask. 4. The three-dimensional folding mask according to claim 1, characterized in that the folds are larger than two groups and distributed around the mask. 5. The three-dimensional folding mask according to any one of claims 1 to 5, characterized in that the upper edge of the mask is connected to the alar sockets on both sides of the bridge of the nose with sealing wings protruding outward. 6. The three-dimensional folding mask according to any one of claims 1 to 5, characterized in that said mask is provided with reciprocating folding. 7. The three-dimensional folding mask according to any one of claims 1 to 5, characterized in that support ribs are provided beside the creases. 8. The three-dimensional folding mask according to any one of claims 1 to 5, characterized in that the two fold creases starting from the apex of the fold line are bonded together as one.