CN214209204U - Gauze mask and ventilation gauze mask - Google Patents
Gauze mask and ventilation gauze mask Download PDFInfo
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- CN214209204U CN214209204U CN202021600468.1U CN202021600468U CN214209204U CN 214209204 U CN214209204 U CN 214209204U CN 202021600468 U CN202021600468 U CN 202021600468U CN 214209204 U CN214209204 U CN 214209204U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 34
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 239000012780 transparent material Substances 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 230000001815 facial effect Effects 0.000 description 14
- 230000029058 respiratory gaseous exchange Effects 0.000 description 11
- 208000002874 Acne Vulgaris Diseases 0.000 description 8
- 206010000496 acne Diseases 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- 230000033764 rhythmic process Effects 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 230000010365 information processing Effects 0.000 description 3
- 208000035473 Communicable disease Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 239000013566 allergen Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
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- 230000000241 respiratory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model belongs to the technical field of masks, and discloses a mask and a ventilation mask, wherein the mask comprises a mask main body, mask belts symmetrically arranged on two sides of the mask main body and a ventilation system arranged on the mask main body, and the mask main body is provided with a power supply for supplying power to the ventilation system; the ventilation system comprises a processor, an exhaust fan for exhausting air and an intake fan for intaking air, and also comprises a power amplifier A and a power amplifier B; the air inlet fan is connected with the processor through a power amplifier A, and the exhaust fan is connected with the processor through a power amplifier B. The utility model discloses be convenient for ventilate for the air current is unobstructed, and the air current size self-adaptation person of wearing breathes the demand, increases use comfort.
Description
Technical Field
The utility model belongs to the technical field of the gauze mask, concretely relates to gauze mask and ventilation mask.
Background
The mask is a sanitary article, generally refers to a device which is worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering the mouth and nose of a wearer, and is made of gauze or paper and the like. The mask has a certain filtering function on air entering the lung, and has a very good protection function when the mask is worn for operation in an environment polluted by dust and the like when respiratory infectious diseases are prevalent.
People and patients who work in severe environments or for other special reasons, such as people who need to protect against infectious diseases, need to wear masks for a long time to reduce environmental irritation, filter allergens, reduce the onset of illness, protect respiratory tracts and the like. However, when the mask is worn for a long time, the problems of unsmooth breathing, oxygen deficiency and the like are caused by unsmooth airflow, carbon dioxide accumulation, difficult ventilation and the like. And the temperature of the part covered by the mask is too high, which causes bacteria on the surface of the face to breed and bed, and the facial acne and other problems are easy to occur after long-term use. The exhaled hot air can not be rapidly diffused in the mask, and can generate high-temperature water vapor in the mask, so that people feel uncomfortable, meanwhile, the warm and humid environment is favorable for breeding bacteria, and if the mask is changed at irregular time, diseases are easily caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems in the prior art, the present invention provides a ventilation system which is advantageous for air intake and exhaust and is applied to a mask.
The utility model discloses the technical scheme who adopts does:
a ventilation system comprises a processor, an exhaust fan for exhausting air and an intake fan for intake air; the air inlet fan is connected with the processor through a power amplifier A, and the exhaust fan is connected with the processor through a power amplifier B.
Furthermore, the system also comprises an air pressure sensor used for sensing air pressure, and the air pressure sensor is connected with the processor.
The air pressure sensor is used for continuously detecting an air pressure value, the air pressure sensor outputs a digital signal reflecting the air pressure, and the digital signal is directly input into the processor and then subjected to algorithm and optimization processing. After being processed by the processor, the signals are changed into two paths of output signals which are respectively sent to the power amplifier A and the power amplifier B. And the power amplifier A generates corresponding voltage and current according to the output signal of the processor, drives the air inlet fan and adjusts the air inflow. Similarly, the power amplifier B generates corresponding voltage and current according to the output signal of the processor, drives the exhaust fan, and adjusts the amount of exhaust. The rotating speeds of the air inlet fan and the air exhaust fan are adjusted according to the air pressure, so that the rotating speeds of the air inlet fan and the air exhaust fan are finely adjusted and controlled, and the purpose of reasonably adjusting the air inflow and the air displacement is achieved.
The air pressure sensor is used for measuring air pressure, and the air pressure sensor is an existing air pressure sensor. The processor performs algorithm and optimization processing on the input signal and is a conventional electronic component. The power amplifier A and the power amplifier B amplify the power of input signals, output voltage and current with certain power and drive a fan to rotate, and are both conventional power amplifiers.
The utility model provides a be provided with foretell ventilation system's gauze mask, is in including gauze mask main part and symmetry setting the gauze mask area of gauze mask main part both sides, ventilation system sets up in the gauze mask main part, still be provided with in the gauze mask main part and be used for the power of ventilation system power supply, be provided with the switch on the power. The power supply is a battery, and a switch is arranged on the battery.
When the existing masks are used, the problems that the breathing is not smooth, the temperature of the part covered by the masks is too high due to unsmooth airflow, carbon dioxide accumulation and difficult ventilation, bacteria on the surface of the face are bred and attached, and facial acne and the like are easy to occur to a user for a long time are caused. The utility model discloses a be provided with in the gauze mask main part ventilation system for air inlet and exhaust cooperate with the breathing rhythm of the person of wearing, are convenient for ventilate, make the air current unobstructed, can effectively reduce carbon dioxide and gather, prevent facial high temperature in the use, face surface bacterial growing, prevent facial acne or germ infection etc. increase use comfort.
In order to make the breathing rhythm of admitting air and exhaust and wearer effectively cooperate, the utility model discloses a sensing information and information processing implement the meticulous regulation and control that ventilates of closed loop to at utmost obtains use comfort. Thus, the algorithm steps performed in the system are as follows, according to the following two cases:
in the first case, the higher the air pressure is, the higher the output voltage of the air pressure sensor is, the following algorithm steps are executed:
1. the processor samples and analog-to-digital converts its input signal, which is here the output signal from the air pressure sensor. Calculating an average value u for N samples of an input signal0And store u0(N is a positive integer, N > 1); constantly updating and storing u0(u0Representing the average value of the air pressure).
2. Collecting L input signal samples, and calculating average value u for M samples1And M is more than or equal to 1 and less than L<<N(u1Representing the current air pressure value). Continuously collecting signal samples and calculating the average value u for each L input signal samples according to the method1Then compare u1And u0The value of (c). If u is1≥u0(indicating that the current air pressure value is higher than or equal to the average air pressure value), the following step 3 is performed; if u is1＜u0(indicating that the current air pressure value is below the air pressure average value), the following step 4 is performed.
3. The processor outputs two voltage average values yA＝v1，yB＝v2Thereby causing the power amplifier A to output a corresponding current average value I1The power amplifier B outputs a corresponding current average value I2And satisfy v2≥v1,I2≥I1。
4. The processor outputs two voltage average values yA＝v3，yB＝v4Thereby causing the power amplifier A to output a corresponding current average value I3The power amplifier B outputs corresponding powerAverage value of flow I4And satisfy v3＞v4,I3＞I4。
In the second case, the higher the air pressure is, the lower the output voltage of the air pressure sensor is, the following algorithm steps are executed:
1. the processor samples and analog-to-digital converts its input signal, which is here the output signal from the air pressure sensor. Calculating an average value u for N samples of an input signal0And store u0(N is a positive integer, N > 1); constantly updating and storing u0(u0Representing the average value of the air pressure).
2. Collecting L input signal samples, and calculating average value u for M samples1And M is more than or equal to 1 and less than L<<N (u1Representing the current air pressure value). Continuously collecting signal samples and calculating the average value u for each L input signal samples according to the method1Then compare u1And u0The value of (c). If u is1≥u0(indicating that the current air pressure value is less than or equal to the air pressure average value), the following step 3 is performed; if u is1＜u0(indicating that the current air pressure value is above the air pressure average value), the following step 4 is performed.
3. The processor outputs two voltage average values yA＝v1，yB＝v2Thereby causing the power amplifier A to output a corresponding current average value I1The power amplifier B outputs a corresponding current average value I2And satisfy v1≥v2,I1≥I2。
4. The processor outputs two voltage average values yA＝v3，yB＝v4Thereby causing the power amplifier A to output a corresponding current average value I3The power amplifier B outputs a corresponding current average value I4And satisfy v4＞v3,I4＞I3。
Furthermore, the air inlet fan and the exhaust fan are both provided with filter sheets. The filter sheet can be arranged on one surface, close to a human body, of the air inlet fan and the exhaust fan, and also can be arranged on one surface, far away from the human body, of the air inlet fan and the exhaust fan, or can cover two sides of the air inlet fan and the exhaust fan.
Furthermore, the mask body is made of transparent materials, and the air inlet fan and the exhaust fan are symmetrically arranged on two sides of the mask body. The mask main body can be made of transparent materials so as to solve the problem that the mask wearing face shields the face and the work and social activities are inconvenient.
Furthermore, the mask body is made of an airtight material.
Furthermore, the mask main body is also provided with an audio amplification device, and the audio amplification device is connected with the power supply; the audio amplification device comprises a microphone, an amplifier connected with the microphone and a loudspeaker connected with the amplifier, and is used for ensuring that a mask wearer can smoothly communicate with other people through voice.
Furthermore, the mask body is also provided with a transparent eye protection sheet. The mask is fixed by a head ring, and a battery and a part of electronic elements are placed on the head ring, so that the weight of the mask main body is reduced.
The utility model has the advantages that:
the utility model discloses the gauze mask is provided with ventilation system for the air current is unobstructed, and it is poor to solve traditional gauze mask gas permeability, and the user breathes the problem of difficulty. Still through sensing information and information processing, implement the meticulous regulation and control of ventilating of closed loop, make air inlet and exhaust and the breathing rhythm of the person of wearing cooperate, use experience is good, and the user can wear for a long time comfortably. The utility model discloses the gauze mask can effectively reduce carbon dioxide and gather, prevents facial high temperature, facial surface bacterial growing in the use, prevents facial acne etc..
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Figure 2 is a schematic view of the ventilation system of the present invention.
Fig. 3 is a schematic diagram of the audio amplifier of the present invention.
In the figure: 1-mask body; 2-mask belt; 3-a barometric sensor; 4-a processor; 5-a microphone; 6-an amplifier; 7-a power amplifier A; 8-exhaust fan; 9-an air intake fan; 10-power amplifier B; 11-a loudspeaker; 12-power supply.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1 to 2, the ventilation system of the present embodiment includes an air pressure sensor 3 for sensing air pressure, an exhaust fan 8 for exhausting air, and an intake fan 9 for intaking air, and further includes a processor 4, wherein the intake fan 9 is connected to the processor 4 through a power amplifier a7, and the exhaust fan 8 is connected to the processor 4 through a power amplifier B10.
The utility model provides a mask, be in including mask main part 1 and symmetry setting the mask area 2 of 1 both sides of mask main part, ventilation system sets up on the mask main part 1, still be provided with on the mask main part 1 and be used for giving the power 12 of ventilation system power supply, be provided with the switch on the power 12.
The mask belt 2 is arranged at two sides of the mask body 1 and is used for fixing the mask on the face of a human body. The air pressure sensor 3, the air inlet fan 9, the air exhaust fan 8, the power amplifier A7, the power amplifier B10, the power supply 12 and the adjusting switch are all arranged on one surface of the mask main body 1, which is far away from the human body. The intake fan 9 and the exhaust fan 8 are symmetrically arranged on the mask body 1, the power amplifier a7 is arranged above the intake fan 9, and the power amplifier B10 is arranged above the exhaust fan 8.
The air pressure sensor 3 is used for sensing the pressure in the mask, continuously detecting an air pressure value, converting the air pressure value into a digital signal and inputting the digital signal into the processor 4, the processor 4 carries out algorithm and optimization processing, the digital signal is processed by the processor 4 and then converted into two paths of signals, and the two paths of signals are respectively transmitted to the power amplifier A7 and the power amplifier B10. The power amplifier A7 generates corresponding voltage according to the signal output by the processor 4, drives the air intake fan 9, and adjusts the air intake quantity. Similarly, the power amplifier B10 generates a corresponding voltage according to the signal output by the processor 4, drives the exhaust fan 8, and adjusts the amount of exhaust air. The air volume of the air inlet fan 9 and the air exhaust fan 8 is adjusted according to the air pressure in the mask main body 1, fine regulation and control of the air inlet volume and the air exhaust volume are achieved, air inlet and exhaust are matched with the breathing rhythm of a wearer, and the wearing comfort level is improved.
The air pressure sensor 3 is used for measuring the air pressure in the mask, the air pressure sensor 3 is the existing air pressure sensor 3, and the model of the air pressure sensor 3 is BMP 280. The processor 4 is model number STM32L010K8T6, and the power amplifier a7 and the power amplifier B10 are both model numbers L298N. The air inlet fan 9 and the air outlet fan 8 are AD0405 HB-G70.
The specific regulation process is performed according to the following algorithm.
1. The processor 4 samples and analog-to-digital converts its input signal, which here is the signal from the air pressure sensor 3. Calculating an average value u for 3000 points of an input signal0And store u0(ii) a Constantly updating and storing u0。
2. Collecting L-300 input signal samples, and calculating average value u for M-40 samples1. Continuously collecting signal sampling points, inputting the signal sampling points with each L being 300, and calculating an average value u according to the mode1Then compare u1And u0The value of (c). If u is1≥u0(indicating that the current air pressure value is higher than or equal to the average air pressure value), the following step 3 is performed; if u is1＜u0(indicating that the current air pressure value is below the air pressure average value), the following step 4 is performed.
3. The processor 4 outputs two voltage average values yA＝1.4v，yB3.1v, this causes the power amplifier a7 to output the corresponding current average I1The power amplifier B10 outputs the corresponding current average value I2＝35mA。
4. The processor 4 outputs two voltage average values yA＝3.1v，yB1.4v, which causes the power amplifier a7 to output the corresponding current average I335mA, the power amplifier B10 outputs the corresponding current average value I4＝12mA。
The mask main body 1 is made of transparent materials, and the air inlet fan 9 and the air exhaust fan 8 are respectively arranged on two sides of the mask; the fan positions at the two sides of the mask are provided with air filtering materials which cover the air inlet fan 9 and the air exhaust fan 8.
When the existing masks are used, the problems that the breathing is not smooth, the temperature of the part covered by the masks is too high due to unsmooth airflow, carbon dioxide accumulation and difficult ventilation, bacteria on the surface of the face are bred and attached, and facial acne and the like are easy to occur to a user for a long time are caused. The utility model discloses a be provided with air inlet fan 9 and exhaust fan 8 on the gauze mask main part 1 to adjust air inlet fan 9 and exhaust fan 8's operation through treater 4 and power amplifier, make admit air and exhaust and the breathing rhythm of the person of wearing cooperatees, be convenient for ventilate, make the air current unobstructed, can effectively reduce carbon dioxide and gather, prevent facial high temperature in the use, face surface bacterial growing, prevent facial acne etc. increase the comfort level of use.
The air pressure sensor 3, the processor 4, the power amplifier A7, the power amplifier B10, the air intake fan 9 and the air exhaust fan 8 are all connected with the power supply 12. The switch is used for controlling the on-off of the current.
Example 2:
as shown in fig. 1 to 2, the ventilation system of this embodiment includes an air pressure sensor 3 for sensing air pressure, an exhaust fan 8 for exhausting air, and an intake fan 9 for intaking air, and further includes a processor 4, where the intake fan 9 is connected to the processor 4 through a power amplifier a7, and the exhaust fan 8 is connected to the processor 4 through a power amplifier B10.
The utility model provides a mask, be in including mask main part 1 and symmetry setting the mask area 2 of 1 both sides of mask main part, ventilation system sets up on the mask main part 1, still be provided with on the mask main part 1 and be used for giving the power 12 of ventilation system power supply, be provided with the switch on the power 12.
The air pressure sensor 3 is used for measuring the air pressure in the mask, the air pressure sensor 3 is the existing air pressure sensor 3, and the model of the air pressure sensor 3 is BMP 280. The processor 4 is model number STM32L010K8T6, and the power amplifier a7 and the power amplifier B1010 are model numbers L298N. The air inlet fan 9 and the air outlet fan 8 are AD0405 HB-G70.
The mask body 1 is further provided with an audio amplification device which mainly comprises a microphone 5, an amplifier 6 and a loudspeaker 11, as shown in fig. 3. Choose miniature patch microphone 5 for use, the model: WM 7231; mini-amplifier 6, type: PAM 8403; micro speaker 11, model: 1525-D8-0.5W.
Example 3:
the present embodiment is defined by optimizing on the basis of the above embodiment 2, and as shown in fig. 1 to 3, the ventilation system of the present embodiment includes a processor 4, an exhaust fan 8 for exhausting air, and an intake fan 9 for intake air; the air inlet fan 9 is connected with the processor 4 through a power amplifier A7, and the air outlet fan 8 is connected with the processor 4 through a power amplifier B10. The device also comprises an air pressure sensor 3 for sensing air pressure, wherein the air pressure sensor 3 is connected with the processor 4.
The air pressure sensor 3 is used for continuously detecting an air pressure value, the air pressure sensor 3 outputs a digital signal reflecting the air pressure, the digital signal is directly input into the processor 4, and then algorithm and optimization processing are carried out. After being processed by the processor 4, the signals are changed into two paths of output signals which are respectively sent to the power amplifier A7 and the power amplifier B10. The power amplifier A7 generates corresponding voltage and current according to the output signal of the processor 4, drives the air intake fan 9, and adjusts the air intake amount. Similarly, the power amplifier B10 generates corresponding voltage and current according to the output signal of the processor 4, drives the exhaust fan 8, and adjusts the exhaust amount. The rotating speeds of the air inlet fan 9 and the air outlet fan 8 are adjusted according to the air pressure, so that the rotating speeds of the air inlet fan 9 and the air outlet fan 8 are finely adjusted and controlled, and the purpose of reasonably adjusting the air inflow and the air discharge is achieved.
The air pressure sensor 3 is used for measuring air pressure, and the air pressure sensor 3 is an existing air pressure sensor 3. The processor 4 performs an algorithm and optimization process on the input signal, and is a conventional electronic component. The power amplifier a7 and the power amplifier B10 amplify the power of the input signal, output a voltage and a current with a certain power, and drive the fan to rotate, which are both conventional power amplifiers 6. The air pressure sensor 3 is used for measuring the air pressure in the mask, the air pressure sensor 3 is the existing air pressure sensor 3, and the model of the air pressure sensor 3 is BMP 280. The processor 4 is model number STM32L010K8T6, and the power amplifier a7 and the power amplifier B10 are both model numbers L298N. The air inlet fan 9 and the air outlet fan 8 are AD0405 HB-G70.
The utility model provides a be provided with foretell ventilation system's gauze mask, is in including gauze mask main part 1 and symmetry setting the gauze mask area 2 of 1 both sides of gauze mask main part, ventilation system sets up on the gauze mask main part 1, still be provided with on the gauze mask main part 1 and be used for the power 12 of ventilation system power supply, be provided with the switch on the power 12. The power source 12 is a battery with a switch disposed thereon.
When the existing masks are used, the problems that the breathing is not smooth, the temperature of the part covered by the masks is too high due to unsmooth airflow, carbon dioxide accumulation and difficult ventilation, bacteria on the surface of the face are bred and attached, and facial acne and the like are easy to occur to a user for a long time are caused. The utility model discloses a be provided with on gauze mask main part 1 ventilation system for air inlet and exhaust cooperate with the breathing rhythm of the person of wearing, are convenient for ventilate, make the air current unobstructed, can effectively reduce carbon dioxide and gather, prevent facial high temperature in the use, face surface bacterial growing, prevent facial acne or germ infection etc. increase use comfort.
In order to make the breathing rhythm of admitting air and exhaust and wearer effectively cooperate, the utility model discloses a sensing information and information processing implement the meticulous regulation and control that ventilates of closed loop to at utmost obtains use comfort.
The air inlet fan 9 and the exhaust fan 8 are both provided with filter sheets. The filter sheet can be arranged on one surface of the air inlet fan 9 and one surface of the exhaust fan 8 close to the human body, or on one surface of the air inlet fan 9 and one surface of the exhaust fan 8 far away from the human body, or on two sides of the air inlet fan 9 and the two sides of the exhaust fan 8.
The mask body 1 is made of transparent materials, and the air inlet fan 9 and the exhaust fan 8 are symmetrically arranged on two sides of the mask body 1. Mask body 1 adopts transparent material to solve wearing the facial problem of sheltering from, work and social activity are inconvenient.
The mask body 1 is also provided with an audio amplification device, and the audio amplification device is connected with the power supply 12; the audio amplification device comprises a microphone 5, an amplifier 6 connected with the microphone 5 and a loudspeaker 11 connected with the amplifier 6. The audio amplifying device mainly comprises a microphone 5, an amplifier 6 and a loudspeaker 11, as shown in fig. 3. Choose miniature patch microphone 5 for use, the model: WM 7231; mini-amplifier 6, type: PAM 8403; micro speaker 11, model: 1525-D8-0.5W. The mask is fixed by a head ring, and a battery and a part of electronic components are placed on the head ring, so that the weight of the mask body 1 is reduced.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (5)
1. A mask, characterized in that: the mask comprises a mask body, mask belts symmetrically arranged on two sides of the mask body and a ventilation system arranged on the mask body, wherein a power supply for supplying power to the ventilation system is arranged on the mask body;
the ventilation system comprises a processor, an exhaust fan for exhausting air and an intake fan for intaking air, and also comprises a power amplifier A and a power amplifier B; the air inlet fan is connected with the processor through a power amplifier A, and the exhaust fan is connected with the processor through a power amplifier B;
the mask body is also provided with an audio amplification device, and the audio amplification device is connected with the power supply; the audio amplification device comprises a microphone, an amplifier connected with the microphone and a loudspeaker connected with the amplifier.
2. The mask of claim 1 wherein: the air inlet fan and the exhaust fan are both provided with filter sheets.
3. The mask according to claim 1 or 2, wherein: the mask main body is made of transparent materials, and the air inlet fan and the exhaust fan are symmetrically arranged on two sides of the mask main body.
4. The mask of claim 1 wherein: the mask body is also provided with a transparent eye protection sheet.
5. A ventilation mask is characterized in that: the air pressure sensor is used for sensing air pressure, the exhaust fan is used for exhausting air, the air inlet fan is used for air inlet, and the air pressure sensor also comprises a processor, a power amplifier A and a power amplifier B; the air pressure sensor is connected with the processor; the air inlet fan is connected with the processor through a power amplifier A, and the exhaust fan is connected with the processor through a power amplifier B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021600468.1U CN214209204U (en) | 2020-08-04 | 2020-08-04 | Gauze mask and ventilation gauze mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021600468.1U CN214209204U (en) | 2020-08-04 | 2020-08-04 | Gauze mask and ventilation gauze mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214209204U true CN214209204U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021600468.1U Expired - Fee Related CN214209204U (en) | 2020-08-04 | 2020-08-04 | Gauze mask and ventilation gauze mask |
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| Country | Link |
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| CN (1) | CN214209204U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111973905A (en) * | 2020-08-04 | 2020-11-24 | 四川大学 | Gauze mask and ventilation system thereof |
| CN116603183A (en) * | 2023-07-17 | 2023-08-18 | 山西萝兰环保科技有限公司 | Air purification equipment for interior decoration |
-
2020
- 2020-08-04 CN CN202021600468.1U patent/CN214209204U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111973905A (en) * | 2020-08-04 | 2020-11-24 | 四川大学 | Gauze mask and ventilation system thereof |
| CN116603183A (en) * | 2023-07-17 | 2023-08-18 | 山西萝兰环保科技有限公司 | Air purification equipment for interior decoration |
| CN116603183B (en) * | 2023-07-17 | 2023-09-12 | 山西萝兰环保科技有限公司 | Air purification equipment for interior decoration |
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