CN205903539U - Grey haze nose cup is prevented in one -way filtration of expansion formula - Google Patents

Abstract

The utility model provides a grey haze nose cup is prevented in one -way filtration of expansion formula, includes bandeau (1), intake pipe (3), nose cup main part (8) and filters bag (11), be provided with on nose cup main part (8) and breathe check valve (9), breathe and open, close when breathing in when the check valve is exhaled, the nose cup main part connects (7) and intake pipe to be linked together through the nose cup soon, and the intake pipe connects (10) and filtration bag to be linked together through filtering the bag soon, the design of filtration bag is wrapped up by high -effect filtering layer (13) for appearances such as general clothing, scarf, knapsack, skin, and airflow channel is supported and formed in inside by light skeleton (12). The utility model provides a grey haze nose cup is prevented in one -way filtration of expansion formula, simple structure, wear beautifully, portably easy -to -use, respiratory resistance is little, can prevent effectively that grey haze and harmful gas from inhaleing.

Description

An expanded one-way filter anti-smudge nasal mask

technical field

The utility model belongs to the technical field of daily life protective articles and relates to a haze protective device.

Background technique

With the release of haze monitoring results, people are increasingly aware of the serious problem of air pollution. In particular, the fine particles in the air are not only a kind of pollutant, but also the carrier of toxic substances such as heavy metals and polycyclic aromatic hydrocarbons. They can be inhaled into the alveoli and directly enter the blood. The culprit of many diseases.

In order to prevent inhalation of polluted air, masks and nasal masks are often the preferred equipment for people to travel. Masks are used to cover the oral and nasal cavities of the human body. The simple disposable masks are small in size, but have a low degree of closeness to the face, making it difficult to form a closed breathing cavity; and mask-type masks fit the face better, which can reduce unintended pressure. Filtered outside air is sucked in from the gap between the mask and the face, but its size is large, which not only hinders the wearer's vision, but also makes it difficult for people to speak.

The nasal mask is only used to cover the wearer's nasal cavity, and its size is relatively small. However, due to the reduction in size, the filtering area of the nasal mask is also greatly reduced compared to the mask. Under the premise of using the same filter material, its filtering resistance increases significantly, making it more difficult to breathe, even for weak respiratory muscles or poor cardiopulmonary function. For the elderly, the weak, the sick, the disabled, and the young, the harm caused by respiratory obstruction and hypoxia will even exceed the risk caused by the particulate matter itself.

Furthermore, when wearing a mask or nasal mask, the water vapor exhaled by the human body is not discharged in time and is easily intercepted in the facial space, making the face feel wet and sticky, especially after wearing it for a long time. obvious.

Contents of the invention

The purpose of the utility model is to provide an expanded one-way filtering anti-smudge nasal mask, which can effectively prevent the inhalation of the smog, has small breathing resistance, is comfortable to wear, and has a beautiful appearance.

The utility model is achieved through the following technical solutions.

An expanded one-way filter anti-smudge nasal mask described in the utility model includes a headband, a movable clip, an air intake pipe, a nose pad, a main body of the nose mask, a quick connection of the air intake pipe, a quick connection of the nose mask, and a quick connection of the headband , filter capsule quick connection and filter capsule; the two ends of the nasal mask main body are provided with nasal mask quick connection, the headband is provided with headband quick connection, the nasal mask quick connection is connected with the air intake pipe through the headband quick connection, and the The trachea is fixed on the headband through the movable clip and the headband quick connection. The nose pad is provided on the main body of the nasal mask, and the nose pad matches the outer contour of the nose of the human body; It is connected with the intake pipe through the quick connection of the intake pipe.

Further, the main body of the nasal mask is provided with a breathing one-way valve, the inlet of the breathing one-way valve is set inside the nasal mask main body, and the outlet is set outside the nasal mask main body. The opening threshold of the breathing one-way valve is the internal and external pressure of the nasal mask main body. The difference is 2~10 Pa, and the closing threshold is -10~0 Pa, the pressure difference between the inside and outside of the nasal mask body.

Further, the shape of the filter capsule is general clothes, scarves, backpacks, etc., especially hats, vests, coats, scarves, and backpacks; the outer part or all of the filter capsule is wrapped by the filter layer, and the interior is provided with a lightweight The frame forms an airflow channel with a height of 0.1~1.0 cm, and the airflow channel is connected to the filter capsule for quick connection; the filter layer is made of high-efficiency filter material; if the high-efficiency filter material is covered with bamboo charcoal fiber fabric, it can also effectively absorb and remove harmful gases.

Further, the movable clip is slidably installed on the headband.

Compared with the existing device, first, the main body of the nasal mask of the utility model is provided with a breathing one-way valve, and when the wearer exhales, the air flow is directly discharged without passing through the filter material, so the exhalation resistance can be significantly reduced; at the same time, the exhalation generated The water vapor is discharged in time and no longer floods the facial area, thus avoiding the uncomfortable feeling caused by wet face. Secondly, the nasal mask adopts an expanded filter capsule, which greatly increases the filter area and effectively reduces the filter resistance during inhalation. Moreover, the filter capsule adopts the shapes of general clothes, scarves, backpacks, etc., which is convenient to wear and has a beautiful appearance. Therefore, the nasal mask provided by the utility model can effectively prevent the inhalation of smog, and has the advantages of small breathing resistance, simple structure, convenient use, beautiful appearance, and comfortable wearing.

Description of drawings

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

Fig. 2 is a schematic diagram of the expansion part of the present invention.

In the figure: 1 is the headband; 2 is the movable clip; 3 is the air intake pipe; 4 is the quick connection of the air intake pipe; 5 is the quick connection of the headband; 6 is the nose pad; 7 is the quick connection of the nose mask; 8 is the main body of the nose mask; 9 is a breathing one-way valve; 10 is a filter capsule quick connection; 11 is a filter capsule; 12 is a skeleton; 13 is a filter layer.

detailed description

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

In Fig. 1, an expanded one-way filter anti-smoke nasal mask, including headband 1, movable clip 2, air intake pipe 3, nose pad 6, nose mask main body 8, air intake pipe quick connection 4, nasal mask quick connection 7 , headband quick connect 5, filter capsule quick connect 10 and filter capsule 11; nose mask main body 8 is provided with nasal mask quick connect 7, headband 1 is provided with headband quick connect 5, nasal mask quick connect 7 can pass The headband quick connection 5 communicates with the air intake pipe 3, the air intake pipe 3 is fixed on the headband 1 through the movable clip 2 and the headband quick connection 5, and the nasal mask main body 8 is provided with a nose pad 6, which is connected to the nose of the human body. The outer contours coincide; the filter capsule 11 is provided with a filter capsule quick connection 10, and the filter capsule quick connection 10 can communicate with the intake pipe 3 through the intake pipe quick connection 4.

The nasal mask main body 8 is provided with a breathing one-way valve 9, the inlet of the breathing one-way valve 9 is set inside the nasal mask main body, and the outlet is set outside the nasal mask main body. ~10 Pa, the closing threshold is the pressure difference between the inside and outside of the nasal mask main body 8 -10~0 Pa.

Among Fig. 2, the profile of filter capsule 11 is general clothing, scarf, knapsack etc., especially select the profiles such as hat, waistcoat, scarf, overcoat, knapsack for use, be convenient to the user to wear; Wrapped, the interior is provided with a lightweight framework 12 with a thickness of 0.1~1.0 cm to form an airflow channel, and the airflow channel is connected to the filter capsule quick connection 10; the filter layer 13 is made of high-efficiency filter material; if the high-efficiency filter material is covered with bamboo charcoal fiber fabric, it can also be effectively absorbed and removed harmful gas.

The movable clip 2 is slidably installed on the headband 1 for adjusting the connection position between the expanded filter capsule 11 and the intake pipe 3 .

During use, the wearer covers the nose with the nose mask main body 8 and fixes it on the head through the headband 1, and the filter capsule 11 is worn on the body in the manner of a coat. The nasal mask main body 8 is connected with the filter capsule 11 through the air intake pipe 3 and the quick connection. When the human body inhales, the negative pressure generated in the main body of the nasal mask 8 is less than -10~0 Pa, the breathing check valve 9 is closed, and the air needs to pass through the filter layer 13, and then pass through the airflow space inside the filter capsule 11, the air intake pipe 3, and the nasal mask The main body 8, then enters the human respiratory system. It may be assumed that the filtering area of the filter capsule 8 is calculated by the outer area of the vest: 30 cm × 40 cm × 2 = 2400 cm ² , and the filtering area of a general nasal mask does not exceed 5 cm × 5 cm = 25 cm ² . It can be estimated that the area of the filtering part of the anti-smudge nasal mask provided by the utility model is 96 times that of the general nasal mask, therefore, under the condition of using the same filter material, the corresponding inhalation resistance is 96 times smaller than that of the general nasal mask.

When the human body exhales, the positive pressure inside the nasal mask main body 8 is greater than 2-10 Pa, the breathing check valve 10 is opened, the air exhaled by the human body is directly discharged through the breathing check valve 10, and the water vapor generated by exhalation is discharged out of the nasal mask main body in time 8 The covered area avoids discomfort caused by wet face. And because exhalation does not need to be filtered, the exhaust resistance is significantly reduced. Since the 8 channels of the nasal mask main body are larger than the human nasal passage, the resistance of the 8 parts of the nasal mask main body is negligible. Therefore, it can be considered that the exhalation resistance is only 2-10 Pa higher than that of the non-wearing condition when wearing the nasal mask device of the present utility model.

Claims (6)

1. a kind of expansion type is unidirectional filters anti-gray haze nose cup, including headband (1), activity folder (2), air inlet pipe (3), nasal cushion (6), nose Cover main body (8) is it is characterised in that also include that air inlet pipe connects (4) soon, nose cup connects (7) soon, headband connects (5) soon, filters capsule and connect soon (10) and filter capsule (11)；Described nose cup bodies (8) two ends are provided with nose cup and connect soon (7), headband (1) are provided with headband fast Connect (5), nose cup connects (7) soon and connects (5) soon by headband and is connected with air inlet pipe (3), air inlet pipe (3) passes through activity folder (2) and head Band connects (5) soon and is fixed on headband (1), and nose cup bodies (8) are provided with nasal cushion (6), the nose outline phase of nasal cushion (6) and human body It coincide；Filtration capsule is provided with filtration capsule (11) connect soon (10), filtration capsule connects (10) soon and can connect (4) and air inlet soon by air inlet pipe Pipe (3) is connected.

2. expansion type according to claim 1 is unidirectional filters anti-gray haze nose cup it is characterised in that described nose cup bodies (8) On be provided with breathing check valve (9), the entrance of check valve (9) is arranged in nose cup bodies, outside outlet setting nose cup bodies.

3. expansion type according to claim 1 is unidirectional filters anti-gray haze nose cup it is characterised in that described filtration capsule (11) Profile be medicated cap, waistcoat, overcoat, knapsack or scarf.

4. the expansion type according to claim 1 or 3 is unidirectional filters anti-gray haze nose cup it is characterised in that described filtration capsule (11) exterior section or all wrapped up by filter layer (13), is internally provided with lightweight skeleton (12) and forms height 0.1 ~ 1.0 cm Gas channel, gas channel connect filter capsule connect (10) soon；Filter layer (13) adopts high efficiency filter material.

5. expansion type according to claim 4 is unidirectional filters anti-gray haze nose cup it is characterised in that in described filtering material Outer overcoat bamboo charcoal fiber textile again.

6. expansion type according to claim 1 is unidirectional filters anti-gray haze nose cup it is characterised in that described activity folder (2) is sliding Dynamic formula is arranged on headband (1).