CN203776205U

CN203776205U - Efficient dustproof respirator

Info

Publication number: CN203776205U
Application number: CN201420141184.9U
Authority: CN
Inventors: 叶林森
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-26
Filing date: 2014-03-26
Publication date: 2014-08-20
Anticipated expiration: 2024-03-26

Abstract

An efficient dustproof respirator comprises a face mask and laces; an inner lining cover is fixed on the inner side of the face mask; a cavity is formed between the inner lining cover and the face mask; the inner side surface of the inner lining cover is similar to the facial profile of a human body; a pair of nasal plug tubes is fixed on the inner side surface of the inner lining cover; the nasal plug tubes are communicated with the cavity between the inner lining cover and the face mask. When the respirator provided by the utility model is used, the nasal plug tubes are plugged into nares, and the laces are tied on auricles loosely, so that the face mask and the inner lining cover can reliably shield a mouth; air inhaled from noses totally passes the nasal plug tubes and is filtered by the face mask; the quality of the air inhaled to the lung is reliable so long as the filterability of the face mask can meet the requirements.

Description

High-efficiency dustproof mask

Technical field

The utility model relates to mouth mask, specifically a kind of high-efficiency dustproof mask.

Background technology

In the situation that air ambient is poor, people adopt the means that wear masks to carry out self-protection conventionally.Traditional mouth mask consists of face shield and the frenulum with air-permeative filter effect, the problem in use existing is: because nose is outstanding at face, between face shield and face and nose side, there is gap, still having grit is entered between face shield and face by gap with air-flow, and be directly drawn in body by nose, when airborne fine particle (PM2.5) and haze are when more serious, general anti-dust respirator is difficult to reach good clean-up effect.For addressing the above problem, in the design of mouth mask, conventionally adopt at present following means: the density and the thickness that 1, increase filtrate (face shield); 2, with respirator belt (or rubber band), face shield fastening is facial, to reduce space; 3, on face shield, position corresponding and the human body bridge of the nose arranges plastic metal sheet, makes to fit mutually with the camber line of the bridge of the nose after sheet deformation, to reduce the gap between nose side and face shield.But above means can be brought following problem again thereupon: although the filter effect of air has improved, mouth mask has increased the resistance of air, and wearer's sense of feeling suffocated, for reducing the sense of feeling suffocated, can only expand the area of face shield, with the resistance that reduces to breathe; Thereupon, due to the enlarged areas of face shield, make again facial shielded area excessively, cause wearer's discomfort, and due to the upper edge of face shield and the close together of palpebra inferior, make people with glasses particularly uncomfortable.Therefore, existing various mouth masks are attended to one thing and lose sight of another often, are difficult to exhaustive.

Utility model content

The purpose of this utility model is to provide a kind of high-efficiency dustproof mask, and this mouth mask anti-dust performance is good, and its good combination property.

For achieving the above object, the utility model adopts following scheme: high-efficiency dustproof mask, it has ventilative filter mask and frenulum, in the inner side of filter mask, be fixed with air-locked lining cover, between lining cover and filter mask, form Packed cavity, the medial surface of lining cover is suitable mutually with the profile of human body face, is fixed with a pair of nasal obstruction pipe on the medial surface of lining cover, and nasal obstruction pipe and lining cover communicate with the cavity between filter mask.

From such scheme, while using the mouth mask that the utility model provides, nasal obstruction pipe close is entered in nostril, frenulum is hung on auricle easily, can make face shield and lining cover reliably snout be blocked.The gas of respiratory nasal is all managed by nasal obstruction and is filtered by face shield, as long as the strainability of face shield can meet the demands, the air quality being drawn in lung is reliable.

The utility model is rational in infrastructure, comfortable wearing, and its filter effect is reliable, safety.

Accompanying drawing explanation

The structural representation of Fig. 1 the utility model embodiment mono-;

The A-A cutaway view of Fig. 2 Fig. 1;

The B-B cutaway view of Fig. 3 Fig. 2;

The structural representation of Fig. 4 the utility model embodiment bis-;

The structural representation of Fig. 5 the utility model embodiment tri-.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing, further illustrate the utility model.

Referring to Fig. 1, Fig. 2, Fig. 3

The high-efficiency dustproof mask that the present embodiment provides, it has face shield 4 and frenulum 1, frenulum 1 is fixed on face shield 4, in the inner side of face shield 4, be fixed with lining cover 2,4 of lining cover 2 and face shields have been connected to form cavity 5 by periphery, the medial surface of lining cover 2 is suitable mutually with the profile of human body face, is fixed with a pair of nasal obstruction pipe 3 on the medial surface of lining cover 2, and nasal obstruction pipe 3 and lining cover 2 communicate with the cavity 5 of 4 of face shields.The anti-dust respirator that the present embodiment provides can repeatedly be used.

The material of face shield 4 can adopt the fiber filtering layer of sizing, face shield 4 is required: have enough density, effectively filtering fine particle (PM2.5); There are enough areas, to reduce respiratory resistance; Can keep required shape.

Referring to Fig. 4

In the present embodiment, face shield has ventilative supporting layer 6 and disposable flexible filtering layer 7, supporting layer 6 is connected as a single entity with lining cover 2, supporting layer 6 is connected by periphery with lining cover 2, form cavity 5 between the two, flexible filtering layer 7 is attached on the outer surface of supporting layer 6, and a ventilative elasticity guard 8 catches flexible filtering layer 7, and the edge latch closure of elasticity guard 8 is on the edge of lining cover 2.Pull down elasticity guard 8, replaceable flexible filtering layer 7, flexible filtering layer 7 is disposable use.Frenulum 1 is fixed on lining cover 2.The employing of flexible filtering layer in the present embodiment, can extend service life of this anti-dust respirator.

The material of flexible filter bowl 6 is flexible fiber filtering layer.Elasticity guard can be sea net or other elastic network(s)s.

Referring to Fig. 5

In the present embodiment, filter mask has ventilative supporting layer 6 and disposable flexible filtering layer 7, and supporting layer 6 is connected as a single entity with lining cover 2, and flexible filtering layer 7 is attached on the outer surface of supporting layer 6, the edge in lining cover 2 outsides has draw-in groove 2a, and the edge of flexible filtering layer 7 stretches in draw-in groove 2a.For the flexible filtering layer 7 in the present embodiment, require the profile of its medial surface and the profile of supporting layer 6 outer surfaces to coincide.

In addition, the material of the lining cover in above-described embodiment 2 adopts satisfactory plasticity or elastomeric material; Nasal obstruction pipe 3 is made by the certain flexible flexible pipe of tool, as emulsion tube, plastic tube etc.

Claims

1. high-efficiency dustproof mask, it has ventilative filter mask and frenulum, it is characterized in that: in the inner side of filter mask, be fixed with air-locked lining cover, between lining cover and filter mask, form Packed cavity, the medial surface of lining cover is suitable mutually with the profile of human body face, on the medial surface of lining cover, be fixed with a pair of nasal obstruction pipe, nasal obstruction pipe and lining cover communicate with the cavity between filter mask.

2. high-efficiency dustproof mask according to claim 1, it is characterized in that: filter mask has ventilative supporting layer and disposable flexible filtering layer, supporting layer and lining cover are connected as a single entity, flexible filtering layer is attached on the outer surface of supporting layer, one ventilative elasticity guard catches flexible filtering layer, and the edge latch closure of elasticity guard is on the edge of lining cover.

3. high-efficiency dustproof mask according to claim 1, it is characterized in that: filter mask has ventilative supporting layer and disposable flexible filtering layer, supporting layer and lining cover are connected as a single entity, flexible filtering layer is attached on the outer surface of supporting layer, the edge in lining cover outside has draw-in groove, and the edge of flexible filtering layer stretches in draw-in groove.