CN203355162U

CN203355162U - Air purifying mask

Info

Publication number: CN203355162U
Application number: CN 201320488896
Authority: CN
Inventors: 谭立忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-12
Filing date: 2013-08-12
Publication date: 2013-12-25
Anticipated expiration: 2023-08-12

Abstract

The utility model relates to an air purifying mask. The air purifying mask is mainly composed of a replaceable filter, a micro centrifugal fan capable of outputting large air volume and air pressure, a power supply with a switch and a mask, wherein a primary filter layer is arranged in front of an air inlet of the micro centrifugal fan, the filter which is arranged behind an exhaust port of the micro centrifugal fan consists of three replaceable filter layers, one layer is a primary filter layer, and large particles and dust are filtered by intermediate-acting filter cotton; a second layer is a honeycomb-shaped active carbon filter net with small air resistance and used for filtering harmful gases, and a third layer is a fine filter layer which is used for further filtering the tiny breathable particles. The fresh air after being filtered is conveyed to the mask through an air conveying guiding cover and dispersed to the nose and mouth of a user as well as into the peripheral space of the mask, so that a micro positive pressure relatively outside the mask is formed between the face and the mask, the outer polluted air can be prevented from entering the mask, and the fresh air can be provided to the user.

Description

The air cleaning face shield

Technical field

The utility model relates to a kind of air cleaning face shield, for the people who gives frequent contact stain air or toxic and harmful, provides the air after purification.

Background technology

At present, quickening along with urbanization and process of industrialization, the a large amount of areas of China particularly big and medium-sized cities air pollution problems inherent are on the rise, the haze number of days increases, influenced haze zone comprises the areas such as the North China Plain, the Yellow River and Huai He River, Yangze river and Huai river, Jiang-Han Area, the south of the River, the north, south China, and area of infection accounts for 1/4 of area.The pollutants such as the heavy metal that various pollutions are discharged, fine particle (PM2.5), sulfur dioxide and nitrogen oxide can produce a very large impact people ' s health, this problem is except relating to the ordinarily resident who lives in contaminated area, old man and children very easily fall ill, especially the personnel that contact with polluter, poisonous and harmful substance, as the pedestrian, urban police, traffic police, sanitationman etc. have larger relation.Short-term or the long-term gas and the dust that contain harmful substance of sucking all can threaten to health of human body.Take the traffic police as example.The medical workers of China are studied traffic police's health and influence factor thereof, discovery is in the big or middle city of China, and long term exposure is subject to (air-polluting) in urban district vehicle exhaust and its healthy especially respiratory health of the airborne traffic-police of dust pollution and threatens for a long time and endanger.

The mouth mask generally used at present can't effectively purge pernicious gas.Though the breathing mask generally used in industrial environment can effectively purify poisonous tail gas, also obviously is not suitable for promoting the use of in general public.Although vehicular air purifier, office are very significantly improved with volume and the Portability of the equipment such as air purifier, this series products does not have independently power supply, and the diffusion zone purified air is larger, carries inconvenience.Common mouth mask and breathing mask are due to the reason that is autonomous respiration and intake resistance, make the wearer feel to breathe effort, cold day mouth mask humidity increases, gas permeability is poorer, and particularly child old man and heavy worker feel to breathe effort, so the filter course of mouth mask and breathing mask can only be thinner, air purification effect is poor, can not effectively reach the effect of air cleaning, particularly, under the environment of heavily contaminated, not have the effect of effective filtering contaminants.

For above problem, a portable set has been described in this invention of " individual portable air purifier " (patent No. 02803880.0), for the user provides the air that purges solid and/or gaseous contamination material, main by a filter hung on waistband, an air diffuser of wearing at human body head, and the air shooter formation that links both.But this patent of invention also has many shapeless property, at first there is the shortcoming that volume is large, weight is large in it.And, because the capacity setting is higher, the principle of utilizing fan to produce pressure reduction is carried out work, can not effectively utilize the motor of relatively high power.Limited in one's ability due to the fan build-up pressure, the resistance loss of gas pipeline, so just be difficult to set up enough pressure air be delivered to diffuser in addition.

The utility model content

The utility model purpose is to provide a kind of air cleaning face shield, the volume that solves the existing procucts existence is large, weight is large, inefficient problem, in order to overcome common mouth mask and breathing mask, to breathe the filter course of effort and mouth mask and breathing mask thinner, air purification effect is poor, can not effectively reach the effect of air cleaning, particularly under the environment of heavily contaminated, a kind of air cleaning face shield that does not have the effect of effective filtering contaminants and design, this air cleaning face shield is filtering contaminants effectively, make again the wearer breathe smooth and easy, guarantee enough oxygen supplies, conveniently wear, allowing health go on a journey is not dream.

The utility model air cleaning face shield is mainly by removable filter and can export larger air quantity and the micro-centrifugal fan of blast, power supply five parts of kuppe and face shield and belt switch form, before first filter layer is arranged on the air inlet of micro-centrifugal fan, for reducing intake resistance, first filter layer air inlet area is greater than the micro-centrifugal fan air inlet, after having filter course more than three layers to be arranged on the micro-centrifugal fan exhaust outlet in the filter of micro-centrifugal fan, by the gas transmission kuppe, the clean air after purifying is sent between user's face and face shield, form the pressure-fired of relative OFP, outside contaminated air can't enter face shield, thereby make in face shield to keep air cleaner.

The utility model air cleaning face shield in use, turn on the power switch, power supply provides electric power to micro-centrifugal fan, micro-centrifugal fan work, produce pressure reduction, draw the air of micro-centrifugal fan air inlet outside, contaminated air is by being with meshed air inlet to enter, through first filter layer, filter, suck micro-centrifugal fan, by the micro-centrifugal fan exhaust outlet, extruded again, fresh air after being filtered is delivered to face shield by the gas transmission kuppe, be diffused into the user nose and mouthful with the surrounding space of face shield in, being embodied as the user provides the effect of fresh air.

The filter course that is no less than three layers is arranged in filter, and one deck is first filter layer, by effect air filtration cotton filter out larger-diameter particle and dust; The second layer is the Alveolate activated carbon capable screen pack that air drag is little, filter out pernicious gas etc., the 3rd layer is the fine filtering layer, further filter out trickle pellet, the material that is arranged on the screen pack of filter element filter course can be selected according to the air cleaning industry standard, filter course also can be put into the material of specific function, as has medicament or inoitantia, the spices etc. for the treatment of rhinitis or respiratory disorder.

The gas transmission kuppe is flat horn mouth, by non-toxic plastic, made, soft antibacterial, the pressure-fired that forms relative OFP between user's face and face shield delivered to the clean air after purifying by kuppe, outside contaminated air can't enter face shield, thereby makes in face shield to keep air cleaner.

The power supply of filter and micro-centrifugal fan and belt switch is contained in plastic casing, be arranged on mask top, less one of gas transmission kuppe is connected on micro-centrifugal fan air outlet and filter, and the larger air outlet of gas transmission kuppe is being positioned between face and face shield.

Head hoop and fixed mount adopt injection molding, and overall structure is light, produces cost by batch low.

The air demand that the utility model generally need to reach about 4.5L-15L/min could meet people's tidal volume fully, and therefore, micro-centrifugal fan need to be selected corresponding power, to adapt to different users's needs.

The beneficial effects of the utility model are: the air cleaning face shield be a kind ofly be widely used in indoor and outdoor public place, industrial circle and street, smoking population gathers the Portable air purifier used in the situation in place.It perfectly combines dedusting, the degerming of clarifier for general room, eliminate the unusual smell and many characteristics such as anti-toxic and harmful of industrial breathing mask, and have advantages of that volume is little, lightweight, power consumption less, be convenient for carrying.Brand-new design makes device structure more reasonable, has realized the microminiaturization of equipment, and the batch low cost of manufacture.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of the utility model filter part.

In figure: 1-micro-centrifugal fan, 2-air cleaner first filter layer, the Alveolate activated carbon capable layer in 3 air cleaners, 4-air cleaner fine filtering layer, 5-kuppe, 6-centrifugal blower fixed mount, 7-battery case fixed mount, the 8-power switch, the 9-power supply is connected electric wire and socket with blower fan, the 10-battery case, the 11-head hoop, 12-face shield movable rotation-shaft, 13-face shield, 14-air inlet first filter layer

The specific embodiment

Now by reference to the accompanying drawings embodiment of the present utility model is further described.

The utility model air cleaning face shield, as shown in Figure 1 and Figure 2, this device is by removable filter and can export the micro-centrifugal fan of larger air quantity and blast and power supply and face shield four parts of belt switch form for its structure.Filter mainly comprises the cotton layer of medium air filtration 2 Alveolate activated carbon capable layer 3, the cotton layer 4 of fine filtering in filter.Micro-centrifugal fan 1, battery case 10, power switch 8 are arranged on head hoop 11 and centrifugal blower fixed mount 6, on battery case fixed mount 7, air inlet initial filter filtering layer is arranged on the front end of the air inlet of micro-centrifugal fan 1, and the air outlet of micro-centrifugal fan is connected with kuppe with the filter of Alveolate activated carbon capable layer 3 and the cotton layer 4 of fine filtering by comprising the cotton layer 2 of medium air filtration.In use, turn on the power switch 8, battery case 10 provides electric power to micro-centrifugal fan 1, micro-centrifugal fan 1 work, produce pressure reduction, draw the air in atmosphere, air enters by opening meshed air inlet, through filter, filter, extruded by kuppe 5 again under Action of Wind pressure, be diffused into user's nose and the space between mouth and face shield 13 from kuppe 5, with respect to face shield, form pressure-fired outward, prevent that the external contamination air from entering face shield 13 the insides, is embodied as the effect that the user provides clean air.

Claims

1. an air cleaning face shield, it is characterized in that: mainly by removable filter with can export the micro-centrifugal fan of larger air quantity and blast and power supply and face shield five parts of kuppe and belt switch form, before first filter layer is arranged on the air inlet of micro-centrifugal fan, for reducing intake resistance, first filter layer air inlet area is greater than the micro-centrifugal fan air inlet, after filter is arranged on the micro-centrifugal fan exhaust outlet, by the gas transmission kuppe, the air after purifying is sent into to the pressure-fired that forms relative OFP between user's face and face shield, outside contaminated air can't enter face shield, thereby make in face shield to keep air cleaner.

2. air cleaning face shield as claimed in claim 1, it is characterized in that: the filter course that is no less than three layers is arranged in filter, one deck is first filter layer, by in effect air filtration cotton filter out larger-diameter particle and dust, the second layer is the Alveolate activated carbon capable screen pack that air drag is less, filter out pernicious gas etc., the 3rd layer is the fine filtering layer, further filters out trickle pellet.