CN2684869Y

CN2684869Y - Variable flat surface cavity type respiratory mouthpiece

Info

Publication number: CN2684869Y
Application number: CNU200420003947XU
Authority: CN
Inventors: 鹿汝南
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-22
Filing date: 2004-03-22
Publication date: 2005-03-16
Anticipated expiration: 2014-03-22
Also published as: WO2005089875A1

Abstract

The utility model relates to a variable plane cavity type mask which comprises a mask main body, a nasal sealing strip, an upper fixing strap, a lower fixing strap and a support piece, wherein the mask is rectangular and is composed of an outer layer, a filtering layer and an inner layer; the middle of the outer surface of the mask is a two-way folded overlapped layer along the horizontal direction; the middle of the inner surface of the mask forms an opening along the horizontal direction; the support piece is arranged in the overlapped layer; the upper edge of the mask is provided with the sealing strip which is made into the shape of a sliver and made of flexible material; the center of the sealing strip is provided with a threading frame; threading rings are respectively arranged on the threading frame and both ends of the sealing strip; both ends of the upper fixing strap penetrate in the threading rings and are reversely overlapped and fixed to the sealing strip; the lower fixing strap is overlapped and fixed in a lower edge. The mask is a plan when not used, and is a raised cavity when in use. The utility model has the advantages of big effective area, small respiratory resistance, good conforming performance with the face and high protection efficiency, and achieves the standard of medical protective masks of China.

Description

Variable plane cavate mouth mask

Technical field

The utility model relates to a kind of simple and easy mouth mask, particularly relates to a kind of variable plane cavate mouth mask.

Background technology

Mouth mask of the prior art is simple plane formula or unidirectional-folding formula or an arc or a shelly.Simple plane formula and unidirectional-folding formula mouth mask have does not have a seal approach, though or have the seal approach sealing tight inadequately, be easy to generate the space; Because the major part of mouth mask all contacts with skin, can't form breathing space simultaneously, effectively filtered air; In addition, mouth mask of the prior art, in order when wearing, to increase filter area, adopt the unidirectional-folding mode, this structural design, though mouth mask vertically can launch, part has increased covering and filter area, but this structural design makes mouth mask always have the folding position of a side to be close to neural sensitivity positions such as nose and lip, feels under the weather when wearing.Cavate mouth mask of the prior art has been taked necessary nose bridge seal approach, has increased effective filtration area, but is not easy to carry and collect, and waste of material is big, complex manufacturing, and the cost height, price is expensive, is difficult to popularize at home.

Summary of the invention

The purpose of this utility model provides a kind of variable plane cavate mouth mask, to remedy the deficiencies in the prior art.

The utility model is realized as follows: a kind of variable plane cavate mouth mask, it includes mouth mask and last fixed band, described mouth mask is a rectangle, formed by skin, filter course and internal layer, along continuous straight runs is a two-way folding overlapping layer in the middle of the described mouth mask outer surface, fixedly connected with the mouth mask dual-side in these bi-directional folded overlapping layer two ends, along continuous straight runs forms an opening in the middle of the mouth mask inner surface; The top edge outside at described mouth mask is provided with sealing strip, described sealing strip is made strip by flexible material, the top is the straight flange of level, the shaped form that is symmetry is shunk gradually by two ends by bottom to the center, the sealing strip center is provided with one and wears tape holder, and this is worn on the tape holder and the sealing strip two ends are respectively equipped with and wear band.

On the inner layer surface of the bi-directional folded overlapping layer of described mouth mask, be fixed with support chip, and be provided with louver(-vre) in the centre of support chip.

Be provided with in the lower edge of described mouth mask and wear zone, in wearing zone, be installed with fixed band down, one end of described down fixed band passes zone via a side of mouth mask and is fixed on the mouth mask opposite side and wears on the side in the zone, and the other end of following fixed band then passes zone via the opposite side of mouth mask and is fixed on the mouth mask side and wears on the another side in the zone.

Be equipped with the protrusion of two symmetries near centre bit in the bottom of described sealing strip.

Bi-directional folded overlapping layer width is the 1/3-1/2 of mouth mask width in the middle of the described mouth mask outer surface.

The utility model variable plane cavate mouth mask good effect is: (fixed band is a relaxed state) is the folding mouth mask of common plane when not wearing.When wearing, the top edge of mouth mask makes the sealing strip of mouth mask top edge closely paste with the shape of the bridge of the nose and the muscle movement distortion of nose and face under the tractive of last fixed band, has the effect of dynamic seal (packing); The lower limb of mouth mask is accordion and shrinks under the pulling force of following fixed band; Be fixed with support chip on the inner layer surface of bi-directional folded overlapping layer, the edge distortion on top of the mid portion of mouth mask, lower limb shrink and the acting in conjunction of support chip under make bi-directional folded overlapping layer along continuous straight runs projection, vertical direction stretches, this moment, the opening of inner surface horizontal direction was opened, under the effect of support chip, naturally constitute one not with nose and the contacted breathing space of mouth, mouth mask not only can be exempted the contacted discomfort of nose when wearing masks, mouth and mouth mask, and can be by the louver(-vre) on the support chip and do not carry out happy breathing with the skin contact part branch.The utility model effective area is big, and respiratory resistance is little, and shape of face driving fit performance is good, and the protection efficiency height is simple in structure, easy to use, is convenient to collection, and is with low cost, reaches the medical protective mask standard of country.

Description of drawings

Fig. 1 is a sectional structure schematic diagram of the present utility model.

Fig. 2 is a perspective view of the present utility model.

Fig. 3 is the work schematic diagram of sealing strip in the utility model.

The connection diagram of Fig. 4 for wearing fixed band under the zone in the utility model.

Fig. 5 is the structural representation of overlapping layer in the utility model.

Fig. 6 is the structural representation of mouth mask inner face of the present utility model.

Among the figure, fixed band, 3 protrusions, 4 are worn tape holder, 5 sealing strips, 6 and are worn band, 7 louver(-vre)s, 8 and wear zone, 9 times fixed bands, 10 support chips, 11 skins, 12 filter courses, 13 internal layers, 14 overlapping layers, 15 openings on 1 mouth mask, 2.

Below in conjunction with accompanying drawing the utility model is described further.

The specific embodiment

As shown in the figure, the variable plane cavate mouth mask that the utility model relates to, it includes mouth mask 1 and last fixed band 2, described mouth mask 1 is a rectangle, formed by skin 11, filter course 12 and internal layer 13, along continuous straight runs is a two-way folding overlapping layer 14 in the middle of described mouth mask 1 outer surface, fixedlys connected with the mouth mask dual-side in these bi-directional folded overlapping layer 14 two ends, and along continuous straight runs forms an opening 15 in the middle of mouth mask 1 inner surface; The top edge outside at described mouth mask 1 is provided with sealing strip 5, described sealing strip 5 is made strip by flexible material, the top is the straight flange of level, the shaped form that is symmetry is shunk gradually by two ends by bottom to the center, sealing strip 5 centers are provided with one and wear tape holder 4, this is worn on the tape holder 4 and sealing strip 5 two ends are respectively equipped with and wear band 6, and the two ends of last fixed band 2 penetrate and reverse overlapping being fixed on the sealing strip 5 from wearing band 6.

On the inner layer surface of the bi-directional folded overlapping layer 14 of described mouth mask 1, be fixed with support chip 10, and be provided with louver(-vre) 7 in the centre of support chip 10.

Be provided with in the lower edge of described mouth mask 1 and wear zone 8, in wearing zone 8, be installed with fixed band 9 down, one end of described down fixed band 9 passes zone 8 via a side of mouth mask 1 and is fixed on mouth mask 1 opposite side and wears on the skin 11 in the zone 8, and the other end of following fixed band 9 then passes zone 8 via the opposite side of mouth mask 1 and is fixed on mouth mask 1 side and wears on the internal layer 13 in the zone 8.

Be equipped with the protrusion 3 of two symmetries near centre bit in the bottom of described sealing strip 5.

Bi-directional folded overlapping layer 14 width are the 1/3-1/2 of mouth mask width in the middle of described mouth mask 1 outer surface.

Claims

1. variable plane cavate mouth mask, it includes mouth mask and last fixed band, described mouth mask is a rectangle, formed by skin, filter course and internal layer, it is characterized in that: along continuous straight runs is a two-way folding overlapping layer in the middle of the described mouth mask outer surface, fixedly connected with the mouth mask dual-side in these bi-directional folded overlapping layer two ends, along continuous straight runs forms an opening in the middle of the mouth mask inner surface; The top edge outside at described mouth mask is provided with sealing strip, described sealing strip is made strip by flexible material, the top is the straight flange of level, the shaped form that is symmetry is shunk gradually by two ends by bottom to the center, the sealing strip center is provided with one and wears tape holder, and this is worn on the tape holder and the sealing strip two ends are respectively equipped with and wear band.

2. a kind of variable plane cavate mouth mask according to claim 1 is characterized in that: be fixed with support chip on the inner layer surface of the bi-directional folded overlapping layer of described mouth mask, and be provided with louver(-vre) in the centre of support chip.

3. a kind of variable plane cavate mouth mask according to claim 1 and 2, it is characterized in that: be provided with in the lower edge of described mouth mask and wear zone, in wearing zone, be installed with fixed band down, one end of described down fixed band passes zone via a side of mouth mask and is fixed on the mouth mask opposite side and wears on the side in the zone, and the other end of following fixed band then passes zone via the opposite side of mouth mask and is fixed on the mouth mask side and wears on the another side in the zone.

4. a kind of variable plane cavate mouth mask according to claim 1 is characterized in that: the protrusion that is equipped with two symmetries in the bottom of described sealing strip near centre bit.

5. a kind of variable plane cavate mouth mask according to claim 1 is characterized in that: bi-directional folded overlapping layer width is the 1/3-1/2 of mouth mask width in the middle of the described mouth mask outer surface.