CN2254758Y - High efficiency, self-suction and filtration type dust-proof and particle-proof gauze mask - Google Patents

Abstract

The utility model relates to a self-suction and filtration type dust-proof and particle-proof gauze mask, belonging to a respiratory labor protective article. The utility model uses a piece of filter cloth as a mask body which is shaped in a hot compacting mode, and the mask body is provided with a breathing valve. The mask body has light weight, comfortable feeling, and high dust preventing rate; the dust preventing rate of the dust-proof gauze mask is larger and equal to 95%, and the dust preventing rate of the particle-proof gauze mask is larger and equal to 99%. The utility model provides an ideal protective device for workers who work under dusty environment.

Description

Dustproof, the anti-particulate mouth mask of high efficiency self suction filtering type

The utility model belongs to labour protection articles for use, belongs to the labor protection mouth mask of dustproof, anti-particulate especially.

In some production processes, can distribute the particulate matter contaminated environment, these materials are according to the size of its particle diameter, have be called dirt, have be called particulate, because the physicochemical property of dirt and particulate self is different, the position that acts on human body also is not quite similar, and can cause different diseases, and the erosion that is subjected to respiratory system is the most serious especially.Enter the particulate matter of alveolar, 95% above particle diameter is less than 5um, and maximum to human body harm, dirt and particulate itself not only can enter the deep of lung, also may chemical pollutant be brought in the lung as a kind of media, and its harm is even more serious.

In order to prevent pneumoconiosis and because of dust, particulate cause the generation of other respiratory diseases, must to protect labourer, it is a kind of common using protective mask, very important salvo.

At present, produce dustproof, the anti-particulate mouth mask that uses both at home and abroad two big class, i.e. plain type and combined types are arranged basically.

The plain type anti-dust respirator is made cover body with filter material, and is simple in structure, light, but because its breathing road does not have particular design, exhales and inhales separating, and its dust proof rate is restricted, and can't improve.Dust collection efficiency 〉=90% of general plain type anti-dust respirator (anti-particulate mouth mask does not have plain type).Because the valve of not exhaling, the moisture Resistance Value that also can make mouth mask rises too fast and reduces mouth mask service time.

Dustproof, the anti-particulate mouth mask of combined type is made up of cover body, filter dirt box, breather valve three parts, its dust collection efficiency height, the dust collection efficiency of combined type anti-dust respirator 〉=95%, dust collection efficiency 〉=99% of the anti-particulate mouth mask of combined type, but, its weight is increased owing to increased rubber cover body and plastics filter dirt box.

The purpose of this utility model is to provide a kind of protection efficiency height, and the breathing comfortableness is good, wears light dustproof anti-particulate mouth mask, makes the wearer be easy to accept.

The utility model is formed (referring to accompanying drawing 1) by cover body (1) and outlet valve (2) two parts.Its cover body is with filter cloth hot pressing direct forming, and also available simple plastic processing frame net and filter cloth carry out combined shaping, and the essence of combination forming is still with filter cloth makes cover material, is equipped with plastic processing frame or plastic wire and then is intensity and rigidity in order to strengthen cover body.Breathe valve and be valve mechanism general in the general protective respirator.Fig. 1 is dustproof, anti-particulate mouth mask side schematic view, 1-cover body wherein, 2-expiration valve; Fig. 2 is dustproof, anti-particulate mouth mask front schematic view, 1-cover body wherein, 2-expiration valve.Dustproof, the anti-particulate mouth mask that the utility model provides, dust proof rate reaches 95-99%, and weight is 60 grams, and is light, comfortable wearing.

The utility model is described in further detail below in conjunction with embodiment.Only dustproof, the anti-particulate mouth mask of 7 number types is an example among " Chinese adult number of people series " GB2428-81 to join, the total height of mouth mask is 119mm, wide is 115mm, the curve of the boundary curve of mouth mask and facial contact and No. 7 standard head model corresponding sites of adult matches, cover body selects the polypropylene superfine fiber filter cloth as cover material, use the mould heat pressure once-forming, the expiration valve is housed on the cover body, selected the plane valve block in the expiration valve.The centre-to-centre spacing cover body lower edge line 57.5mm of valve equates with cover body two lateral extents.The expiration valve adopts the mother-son mouth bind mode to combine closely with assurance with cover body.Its dust collection efficiency of the anti-dust respirator of joining 7 number types 〉=95% that the utility model provides, weight 60 grams, dust collection efficiency 〉=99% of anti-particulate mouth mask, weight 60 grams, with the identical plain type anti-dust respirator that is higher than of dust proof rate of combined type, its weight is well below the dustproof anti-particulate mouth mask of combined type.

Claims (1)

1. dustproof, anti-particulate mouth mask that is used to protect respirable dust is characterized in that filter cloth makes cover body, is furnished with the breathing valve on the cover body.

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