Vertical folds low pressure mouth mask
Technical field
The present invention relates to a kind of mouth mask, particularly relate to a kind of vertical folds low pressure mouth mask.
Background technology
Along with the raising of people's hygiene and health consciousness, mouth mask spreads all over each field of our life already as a kind of protection tool, as industries such as medical treatment, chemical industry, Furniture manufactures, in process of industrialization, causing today of environmental pollution, we have to again take up mouth mask trip, injure to avoid haze, the Main Function making a general survey of these mouth masks is isolated exactly and is filtered microparticle and virus, avoids microparticle and virus directly to suck lung and causes negative effect to health of human body.Existing mouth mask is of a great variety, the most frequently used still based on bowl formula mouth mask and folding chip mouth mask, bowl formula mouth mask is made up of some layers of filter, pull open during use and cover on face in bowl-shape, filter area is relatively little fixing limited, and having more than of contacting with face is mouth mask edge, the filter of adjacent edges also can contact with face, this just reduces again the effective filtration area of filter, the reduction of effective filtration area can increase the pressure reduction of both sides inside and outside filter, causing air-flow to have some setbacks has the sensation of feeling suffocated, the air-flow velocity adding ambassador's filter micropore place of pressure reduction increases, the little microparticle sticked under the drive of high velocity air on filter disc also can enter respiratory tract through micropore, affect filter effect, High Pressure Difference also can increase amplitude of deformation when face shield is breathed, folding chip mouth mask is tiled to stack by some layers of filter and forms, filter is established the folding of multiple tracks level, this horizontal folding structure has followed decades, both sides are connected and fixed band, formation one concavity space is pulled open up and down when wearing, because the horizontal length of the length on fold flat direction, each road and filter lower edges is equal, when wearing, under the tractive of fixed band, the lower edges of filter and horizontal folding are tending towards tight state, can make horizontal folding position closer to or be pressed in nose and mouth, cause the little mistake of depth space, filter and face's contact area large, reduce filter effective filtration area, cause filter can not balance everywhere and play its filtering efficiency, filter nose and mouth inside and outside differential pressure is caused to uprise, have air-flow to have some setbacks the sensation of feeling suffocated, add microparticle on the filter of nose and mouth under high velocity air drives through probability, when also having filter closely to breathe apart from mouth and nose, air-flow is large to filter impulsive force, vibrations distortion also can increase microparticle through probability, during air-breathing, under suction, filter can closer to nostril, under the tractive of fixed band, under tensioned state, occur gap between filter top edge and wing of nose nest in addition, when causing air-breathing, dust enters into face masks by gap affects filter effect, it is in addition perfect that these problems still await technological improvement.
Summary of the invention
In order to solve the problem, the invention provides a kind of vertical folds low pressure mouth mask.
The technical solution used in the present invention is: a kind of vertical folds low pressure mouth mask, comprise the face shield be made up of at least one deck filter, the face shield left and right sides is connected with fixed band, it is vertical vertically folded for it is characterized in that filter is provided with folding line, and these vertically folded two ends bond in filter edge.
Further, describedly vertically foldedly erect center line for the symmetrical distribution of symmetry axis with face shield, each vertically folded is parallel to each other.
Further, describedly vertically foldedly erect center line for the symmetrical distribution of symmetry axis with face shield, on the left of symmetry axis vertically folded and right side vertically folded between arrange in "eight" shape.
Further, describedly vertically foldedly erect center line for the symmetrical distribution of symmetry axis with face shield, adjacent vertically folded in just " eight " word or inverted "eight" shape arrangement.
Further, described folding rear filter in the form of sheets.
Further, described folding rear filter is bowl-shape.
Further, described filter is provided with one-way breather valve.
Further, described folding between be connected with drawstring.
Further, described filter edge is surrounded by edge sealing in vertically folded bonding place.
Further, described vertically folded for "the" shape fold.
It is vertical vertically folded that the present invention is provided with folding line on filter, bowl formula structure folds when using and stretches out, intermediate lateral length is greater than, lower limb lateral length, bowl-shape cover can be expanded further forwards or the space of both sides, reduce over the contact of filter disc and cheek, filter is made to maintain higher effective filtration area, the existence of folding fold also further increases the effective filtration area of filter, reduce the pressure reduction of both sides inside and outside filter, airflow smooth is caused to reduce the sensation of feeling suffocated, the reduction of pressure reduction makes the air-flow velocity at filter micropore place lower, effectively can prevent the too high suction microparticle of air-flow velocity, the increase of effective filtration area also lays the foundation for reducing filter hole raising filter effect, stretch out about when folding chip mouth mask is worn, same intermediate lateral length is greater than, lower limb lateral length, on in face shield, all can form down a steeper outwardly space, under fixed band tractive, this outstanding spatial shape is stablized, mouth and nose can not be oppressed, vibrations distortion is little, filter and face's contact area little, effective filtration area is large, airflow smooth, filter everywhere air flow rate is balanced, filter everywhere filtering efficiency can be balanced performance, under fixed band tractive, filter upper edge forms a steeper outwardly space, the formation in this space also can impel the nose two side direction face of filter top edge close, wing of nose position is more near wing of nose nest, improve anti-gas-leak performance, improve integral filter effect, also have the outstanding nose of face and lower jaw to be contained in upper and lower outwardly space respectively, there is no tight constriction, wear more comfortable.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention one structural representation.
Fig. 2 is the embodiment of the present invention two structural representation.
Fig. 3 is the embodiment of the present invention three structural representation.
Fig. 4 is embodiment of the present invention filter dislocation " it " word foldable structure schematic diagram.
Fig. 5 is filter of the present invention superposition " it " word foldable structure schematic diagram.
Fig. 6 is filter of the present invention positive and negative " it " word foldable structure schematic diagram.
Number in the figure title: 1 face shield; 2 fixed bands; 3 is vertically folded.
Detailed description of the invention
The embodiment of the present invention one as shown in Figure 1, this vertical folds low pressure port is covered with the face shield 1 be made up of at least one deck filter, the face shield left and right sides is connected with fixed band 2, it is characterized in that filter is provided with folding line is vertical vertically folded 3, these vertically folded two ends bond in filter edge, vertically foldedly erect center line for the symmetrical distribution of symmetry axis with face shield, each vertically folded is parallel to each other, this form of the present embodiment stretches out about folding when chip mouth mask is worn, same intermediate lateral length is greater than, lower limb lateral length, on in face shield, all can form down a steeper outwardly space, under fixed band tractive, this outstanding spatial shape is stablized, mouth and nose can not be oppressed, vibrations distortion is little, filter and face's contact area little, effective filtration area is large, airflow smooth, filter everywhere air flow rate is balanced, filter everywhere filtering efficiency can be balanced performance, under fixed band tractive, filter upper edge forms a steeper outwardly space, the formation in this space also can impel the nose two side direction face of filter top edge close, wing of nose position is more near wing of nose nest, improve anti-gas-leak performance, improve integral filter effect, also have the outstanding nose of face and lower jaw to be contained in upper and lower outwardly space respectively, there is no tight constriction, wear more comfortable.
Execute example one for chip, can be made as bowl-shape by compression molding during enforcement, bowl formula structure folds when using and stretches out, intermediate lateral length is greater than, lower limb lateral length, bowl-shape cover can be expanded further forwards or the space of both sides, reduce over the contact of filter disc and cheek, filter is made to maintain higher effective filtration area, the existence of folding fold also further increases the effective filtration area of filter, reduce the pressure reduction of both sides inside and outside filter, airflow smooth is caused to reduce the sensation of feeling suffocated, the reduction of pressure reduction makes the air-flow velocity at filter micropore place lower, effectively can prevent the too high suction microparticle of air-flow velocity, the increase of effective filtration area also lays the foundation for reducing filter hole raising filter effect.
The embodiment of the present invention two as shown in Figure 2, vertically folded 3 of this vertical folds low pressure mouth mask erects center line for the symmetrical distribution of symmetry axis with face shield, on the left of symmetry axis vertically folded and right side vertically folded between arrange in "eight" shape, upper and lower asymmetric cavity can be formed when stretching out, formed with the face shield meeting people's shape of face, can be molded into bowl-shape equally.
The embodiment of the present invention three as shown in Figure 3, vertically folded 3 of this vertical folds low pressure mouth mask erects center line for the symmetrical distribution of symmetry axis with face shield, adjacent vertically folded is just " eight " word or inverted "eight" shape arrangement, the built-in width in folding two ends is different, all can form the pleat of different depth up and down, when oblique trend stretches, distortion makes it better unfold, and effective filtration area is more formed, and deadfold is few.
During the invention process, one-way breather valve can be set on filter; Also can be connected with drawstring between folding, the amplitude launched when controlling folding stretching; Filter edge is surrounded by edge sealing in vertically folded bonding place, wears more comfortable; Filter is vertically folded to be folded for "the" shape, and misplace " it " word foldable structure or Fig. 5 of Fig. 4 can be adopted as required to superpose " it " word foldable structure or Fig. 6 positive and negative " it " word foldable structure; Fixed band can need to be connected to the suitable position of face shield according to face suitability.