阅读说明：本技术 一种保持防护装置内侧呼吸顺畅的方法及防护装置 (Method for keeping smooth breathing inside protective device and protective device ) 是由 于冬青 卢达 于 2020-04-30 设计创作，主要内容包括：本发明涉及一种保持防护装置内侧呼吸顺畅的方法及防护装置,属于人体防护装置技术领域。一种保持防护装置内侧呼吸顺畅的方法,所述防护装置为防护面罩或防护口罩；防护装置佩戴于用户后,包括：每间隔时长Δt便获取一次用户的呼吸状态；根据用户的呼吸状态在下一个时长Δt内,控制预先设置的换气机构输入新鲜空气和/或排出浊气。本方法中,根据当前获取到的用户的呼吸状态,在下一个时长Δt内控制预先设置的换气机构输入新鲜空气和/或排出浊气,即用户在吸气,则输入新鲜空气,用户在呼气,则排出浊气,不仅保证了防护装置内侧的空气流通,还使得防护装置内侧的压强不会过大,保证了用户使用时的舒适性。(The invention relates to a method for keeping the inner side of a protection device breathe smoothly and the protection device, and belongs to the technical field of human body protection devices. A method for keeping the inner side of a protective device to breathe smoothly, wherein the protective device is a protective mask or a protective mask; after the protector is worn by the user, include: acquiring the breathing state of the user once every interval time delta t; and controlling a preset ventilation mechanism to input fresh air and/or exhaust foul air in the next time period delta t according to the breathing state of the user. According to the method, according to the currently acquired breathing state of the user, the preset ventilation mechanism is controlled to input fresh air and/or exhaust foul air within the next time period delta t, namely the user inputs fresh air when inhaling, and exhausts foul air when exhaling, so that air circulation inside the protection device is ensured, the pressure inside the protection device is not too high, and the comfort of the user during use is ensured.)

1. A method for keeping the inner side of a protection device breathe smoothly is characterized in that the protection device is a protection mask or a protection mask; after the protector is worn by the user, include:

acquiring the breathing state of the user once every interval time delta t;

and controlling a preset ventilation mechanism to input fresh air and/or exhaust foul air in the next time period delta t according to the breathing state of the user.

2. The method for keeping breathing inside the protective device smooth according to claim 1, wherein said obtaining the breathing state of the user once every interval duration Δ t comprises the following steps:

obtaining a non-breathing state pressure value P at the inner side of the protection device₀；

Acquiring a real-time pressure value P of the inner side of the protection device once at intervals of time delta t through a preset air pressure detection mechanism_n；

Judging the real-time pressure value P_nPressure value P in non-respiratory state₀The difference of (d) and 0;

if the real-time pressure value P_nPressure value P in non-respiratory state₀If the difference is less than 0, the user is in an inspiratory state;

if the real-time pressure value P_nPressure value P in non-respiratory state₀If the difference is greater than 0, the user is in an expiratory state;

if the real-time pressure value P_nPressure value P in non-respiratory state₀Is equal to 0, the user is in a non-breathing state.

3. According toMethod for keeping the inside of the protective device smooth breathing as claimed in claim 2, characterized in that when the user is inhaling, the preset ventilation mechanism is controlled to input fresh air for the next time period Δ t until the pressure value P inside the protective device_nGreater than or equal to the non-breathing pressure value P inside the protective device₀。

4. The method of claim 2, wherein when the user is in an expiratory condition,

controlling a preset air exchange mechanism to discharge the foul air within the next time period delta t until the pressure value P of the inner side of the protection device_nLess than or equal to the non-breathing pressure value P inside the protective device₀；

Or;

controlling a preset air exchange mechanism to exhaust the foul air in the next time period delta t, and simultaneously controlling another preset air exchange mechanism to input fresh air until the pressure value P inside the protection device_nLess than or equal to the non-breathing pressure value P inside the protective device₀(ii) a The volume flow rate V of air per unit time of the ventilating mechanism discharging the foul air_{Go out}Volume flow rate V of air per unit time of air exchange mechanism larger than fresh air input_Into；

Or;

controlling a preset air exchange mechanism to exhaust the foul air in the next time length delta t, and simultaneously controlling another preset air exchange mechanism to input fresh air; the volume flow rate V of air per unit time of the ventilating mechanism discharging the foul air_{Go out}Volume flow rate V of air per unit time of air exchange mechanism larger than fresh air input_IntoAnd the discharge amount of the foul air of the ventilation mechanism discharging the foul air is ensured to be larger than or equal to the pre-acquired air storage amount at the inner side of the protection device.

5. The method for keeping the inside of the protective device smooth breathing according to claim 4, wherein the step of ensuring that the discharge amount of the foul air of the ventilation mechanism discharging the foul air is greater than or equal to the pre-acquired air storage amount inside the protective device comprises the following steps:

pre-acquiring gas storage volume V inside the protection device_{Store up}；

The ventilation speed V of each ventilation mechanism is obtained in advance_{Changeable pipe}/s；

Acquiring the running time s of a ventilation mechanism for exhausting foul air;

judging the ventilation speed V_{Changeable pipe}Whether the product of/s and the operating time s of the ventilation means discharging the foul air is greater than or equal to the gas storage volume V inside the protective device_{Store up}；

If yes, the guarantee request is completed.

6. A protection device is characterized by comprising a device body provided with at least one vent, a power supply, a controller electrically connected with the power supply, a ventilation mechanism connected with the controller and arranged on the device body, and an air pressure detection mechanism connected with the controller and used for detecting the pressure intensity inside the device body;

after the protection device is worn on a user, the controller acquires a non-breathing state pressure value P on the inner side of the device body₀；

The controller obtains a real-time pressure value P of the inner side of the device body through the air pressure detection mechanism at intervals of time delta t_n；

The controller determines a real-time pressure value P_nPressure value P in non-respiratory state₀The difference of (a) and 0, thereby obtaining the respiratory state of the user;

and the controller controls the ventilation mechanism to input fresh air and/or exhaust foul air through the ventilation opening within the next time period delta t according to the breathing state of the user.

7. Guard device according to claim 6, characterised in that the real-time pressure value P is measured as a real-time pressure value_nPressure value P in non-respiratory state₀When the difference is less than 0, the user is in an air suction state, and the controller controls the air exchange mechanism to input fresh air to the inner side of the device body within the next time period delta t until the protective devicePressure value P arranged inside_nGreater than or equal to the non-breathing pressure value P inside the device body₀；

When the real-time pressure value P_nPressure value P in non-respiratory state₀When the difference is greater than 0, the user is in an expiratory state;

the controller controls the ventilation mechanism to discharge the foul air within the next time length delta t until the pressure value P of the inner side of the device body_nIs less than or equal to the non-breathing state pressure value P inside the device body₀；

Or;

the controller controls the preset air exchange mechanism to exhaust the foul air in the next time length delta t, and simultaneously controls the preset other air exchange mechanism to input fresh air until the pressure value P of the inner side of the device body_nIs less than or equal to the non-breathing state pressure value P inside the device body₀(ii) a The volume flow rate V of air per unit time of the ventilating mechanism discharging the foul air_{Go out}Volume flow rate V of air per unit time of air exchange mechanism larger than fresh air input_Into；

Or;

the controller controls a preset air exchange mechanism to exhaust foul air in the next time length delta t, and simultaneously controls another preset air exchange mechanism to input fresh air; the volume flow rate V of air per unit time of the ventilating mechanism discharging the foul air_{Go out}Volume flow rate V of air per unit time of air exchange mechanism larger than fresh air input_IntoAnd the discharge amount of the foul air of the ventilation mechanism discharging the foul air is ensured to be larger than or equal to the pre-acquired air storage amount at the inner side of the device body.

8. Guard means according to claim 6 or 7 characterised in that the number of controllers is 1; the air exchange mechanism and the air pressure detection mechanism are both connected with the controller;

or;

the number of the air exchange mechanisms and the number of the controllers are the same, and the air exchange mechanisms and the controllers are at least two, and one air exchange mechanism and one controller are in unique matching connection; the number of the air pressure detection mechanisms is 1; the air pressure detection mechanism is connected with each controller;

or;

the number of the air exchange mechanisms and the number of the controllers are the same and are at least two, and one air exchange mechanism is uniquely matched and connected with one controller; the air pressure detection mechanisms are at least two and are connected with each controller;

or;

the air exchange mechanism, the air pressure detection mechanism and the controller are the same in quantity and are at least two, and one air exchange mechanism, one air pressure detection mechanism and one controller are in unique matching connection.

9. The protective device according to claim 6 or 7, wherein the protective device is a protective face mask, protective mouth mask or insulating clothing;

and/or;

the air exchange mechanism is a fan or an air pump;

and/or;

the filter material is arranged at the air vent;

and/or;

the microphone and the loudspeaker are electrically connected with the power supply; the microphone is arranged on the inner side of the device body and close to the mouth of the user; the loudspeaker is arranged on the outer side of the device body.

10. The protection device of claim 6 or 7, wherein the at least two air vents are provided, at least one air inlet is used for air inlet, at least one air outlet is used for air outlet, and a one-way air valve is arranged at the air vent for air outlet;

and/or;

still include the detachably locate the device body and with the extension breather pipe that is used for the vent connection of admitting air.

Technical Field

The invention relates to a method for keeping the inner side of a protection device breathe smoothly and the protection device, and belongs to the technical field of human body protection devices.

Background

In the existing protective devices (such as protective masks and protective face masks), after a user wears the protective device, the air inside the protective device is not well circulated, so that the user can breathe smoothly; the better the protection effect of the protection device, the smoother the breathing of the user (such as a mask of N95/KN 95). In order to solve the technical problem, a fan is arranged on the protection device on the market, and the air circulation between the inner side of the protection device and the external environment is improved through the fan, so that the breathing comfort of a user is improved. However, in the technical scheme, no matter the user inhales or exhales, the fan blows fresh air into the inner side of the protection device (or a fan switch is further arranged in some schemes, and the fan is manually turned on or turned off by the user), so that the pressure intensity of the inner side of the protection device is unstable, the protection device is easily separated from the joint part of the user, and meanwhile, the pressure intensity of the inner side of the protection device is too high, and the user can feel uncomfortable during breathing.

Disclosure of Invention

The invention aims to solve the technical problem that the existing protection device is unsmooth in breathing.

In order to solve the technical problems, the invention provides the following technical scheme:

a method for keeping the inner side of a protective device to breathe smoothly, wherein the protective device is a protective mask or a protective mask; after the protector is worn by the user, include:

acquiring the breathing state of the user once every interval time delta t;

and controlling a preset ventilation mechanism to input fresh air and/or exhaust foul air in the next time period delta t according to the breathing state of the user.

The time length Δ t cannot be longer than the single inhalation time length or the single exhalation time length of the human body, and the smaller the time length Δ t, the better the comfort.

In the method, according to the currently acquired breathing state of the user, the preset ventilation mechanism is controlled to input fresh air and/or exhaust foul air within the next time length delta t, namely the user inputs fresh air when inhaling, and the user exhausts foul air (or simultaneously inputs fresh air and exhausts foul air, but the exhaust amount of the foul air in unit time is larger than the input amount of the fresh air) when exhaling, so that not only is the air circulation inside the protection device ensured, but also the pressure inside the protection device is not too high, and the comfort of the user during use is ensured.

Specifically, in order to conveniently and quickly determine the respiratory state of the user, the step of obtaining the respiratory state of the user once every interval time Δ t includes the following steps:

obtaining a non-breathing state pressure value P at the inner side of the protection device₀(ii) a Pressure value P in non-respiratory state₀The pressure value P of the breathing state can be stored in the controller in advance only by setting the pressure value by the controller after the atmospheric pressure of the current area is acquired through networking with the Internet₀The ratio of the pressure to the atmospheric pressure of the external environment is only needed;

acquiring a real-time pressure value P of the inner side of the protection device once at intervals of time delta t through a preset air pressure detection mechanism_n；

Judging the real-time pressure value P_nPressure value P in non-respiratory state₀The difference of (d) and 0;

if the real-time pressure value P_nPressure value P in non-respiratory state₀If the difference is less than 0, the user is in an inspiratory state;

if the real-time pressure value P_nPressure value P in non-respiratory state₀If the difference is greater than 0, the user is in an expiratory state;

if the real-time pressure value P_nPressure value P in non-respiratory state₀Is equal to 0, the user is in a non-breathing state.

More specifically, when the user is in the inspiration state, the preset air exchange mechanism is controlled to input fresh air in the next time period delta t until the pressure value P inside the protection device_nGreater than or equal to the non-breathing pressure value P inside the protective device₀。

More specifically, when the user is in the expiratory state,

controlling a preset air exchange mechanism to discharge the foul air within the next time period delta t until the pressure value P of the inner side of the protection device_nIs less than or equal toPressure value P in non-breathing state inside the protective device₀；

Or;

controlling a preset air exchange mechanism to exhaust the foul air in the next time period delta t, and simultaneously controlling another preset air exchange mechanism to input fresh air until the pressure value P inside the protection device_nLess than or equal to the non-breathing pressure value P inside the protective device₀(ii) a The volume flow rate V of air per unit time of the ventilating mechanism discharging the foul air_{Go out}Volume flow rate V of air per unit time of air exchange mechanism larger than fresh air input_Into；

Or;

controlling a preset air exchange mechanism to exhaust the foul air in the next time length delta t, and simultaneously controlling another preset air exchange mechanism to input fresh air; the volume flow rate V of air per unit time of the ventilating mechanism discharging the foul air_{Go out}Volume flow rate V of air per unit time of air exchange mechanism larger than fresh air input_IntoAnd the discharge amount of the foul air of the ventilation mechanism discharging the foul air is ensured to be larger than or equal to the pre-acquired air storage amount at the inner side of the protection device.

Specifically, the step of ensuring that the discharge amount of the foul air of the ventilation mechanism discharging the foul air is greater than or equal to the pre-acquired air storage amount inside the protection device comprises the following steps:

pre-acquiring gas storage volume V inside the protection device_{Store up}；

The ventilation speed V of each ventilation mechanism is obtained in advance_{Changeable pipe}/s；

Acquiring the running time s of a ventilation mechanism for exhausting foul air;

judging the ventilation speed V_{Changeable pipe}Whether the product of/s and the operating time s of the ventilation means discharging the foul air is greater than or equal to the gas storage volume V inside the protective device_{Store up}；

If yes, the guarantee request is completed.

The invention also provides a protective device, which comprises a device body provided with at least one vent, a power supply, a controller electrically connected with the power supply, a ventilation mechanism connected with the controller and arranged on the device body, and an air pressure detection mechanism connected with the controller and used for detecting the pressure intensity inside the device body;

after the protection device is worn on a user, the controller acquires a non-breathing state pressure value P on the inner side of the device body₀；

The controller obtains a real-time pressure value P of the inner side of the device body through the air pressure detection mechanism at intervals of time delta t_n；

The controller determines a real-time pressure value P_nPressure value P in non-respiratory state₀The difference of (a) and 0, thereby obtaining the respiratory state of the user;

and the controller controls the ventilation mechanism to input fresh air and/or exhaust foul air through the ventilation opening within the next time period delta t according to the breathing state of the user.

According to the protection device, due to the adoption of the structure and the components, the controller can acquire the current breathing state of the user according to the current pressure intensity of the inner side of the device body acquired by the air pressure detection mechanism, and then control the ventilation mechanism to input fresh air and/or discharge foul air within the next time period delta t according to the current breathing state of the user, so that the ventilation of the inner side of the device body is ensured, the pressure intensity of the inner side of the device body is not too high, and the comfort of the user in use is ensured.

Further, when the real-time pressure value P is_nPressure value P in non-respiratory state₀When the difference is less than 0, the user is in an air suction state, and the controller controls the air exchange mechanism to input fresh air to the inner side of the device body within the next time length delta t until the pressure value P of the inner side of the protection device_nGreater than or equal to the non-breathing pressure value P inside the protective device₀；

When the real-time pressure value P_nPressure value P in non-respiratory state₀When the difference is greater than 0, the user is in an expiratory state;

the controller controls the ventilation mechanism to exhaust foul air within the next time period delta t until the pressure value P of the inner side of the protection device_nLess than or equal to the non-breathing pressure value inside the protective deviceP₀；

Or;

the controller controls the preset air exchange mechanism to exhaust the foul air in the next time length delta t, and simultaneously controls the preset other air exchange mechanism to input fresh air until the pressure value P of the inner side of the protection device_nLess than or equal to the non-breathing pressure value P inside the protective device₀(ii) a The volume flow rate V of air per unit time of the ventilating mechanism discharging the foul air_{Go out}Volume flow rate V of air per unit time of air exchange mechanism larger than fresh air input_Into；

Or;

the controller controls a preset air exchange mechanism to exhaust foul air in the next time length delta t, and simultaneously controls another preset air exchange mechanism to input fresh air; the volume flow rate V of air per unit time of the ventilating mechanism discharging the foul air_{Go out}Volume flow rate V of air per unit time of air exchange mechanism larger than fresh air input_IntoAnd the discharge amount of the foul air of the ventilation mechanism discharging the foul air is ensured to be larger than or equal to the pre-acquired air storage amount at the inner side of the device body.

Specifically, according to practical situations, the following two types of situations exist in the connection relationship of the controller, the ventilation mechanism and the air pressure detection mechanism:

the first type: the number of controllers may be only 1; the air exchange mechanism and the air pressure detection mechanism are both connected with the controller; at the moment, all the ventilation mechanisms and the air pressure detection mechanisms are controlled by one controller;

the second type: the number of the air exchange mechanisms and the number of the controllers are the same, and the air exchange mechanisms and the controllers are at least two, and one air exchange mechanism is uniquely matched and connected with one controller, namely one controller only controls one air exchange mechanism, and one air exchange mechanism is also controlled by one controller;

the number of the air pressure detection mechanisms can be 1, and at least two air pressure detection mechanisms can be provided; the second case can therefore be subdivided into the following three cases:

the first method comprises the following steps: when the number of the air pressure detection mechanisms is 1, all the controllers are connected, namely all the controllers acquire the pressure intensity of the inner side of the device body through the air pressure detection mechanisms;

and the second method comprises the following steps: when the number of the air pressure detection mechanisms is at least two, each air pressure detection mechanism is respectively connected with all the controllers, namely all the controllers respectively obtain the pressure intensity of the inner side of the device body through all the air pressure detection mechanisms;

and the third is that: when the number of the air pressure detection mechanisms is at least two, the number of the air pressure detection mechanisms is the same as that of the controllers, and one air pressure detection mechanism is only in unique matching connection with one controller, namely, each controller only obtains the pressure intensity at the inner side of the device body through one air pressure detection mechanism, and the air pressure detection mechanisms connected with the controllers are not overlapped.

Specifically, the protection device is a protective mask or a protective mask.

Specifically, the ventilation mechanism is a fan or an air pump.

Furthermore, in order to ensure the protection effect of the protection device, the protection device also comprises a filtering material arranged at the vent.

Furthermore, the voice communication device is convenient for the user to communicate with other people by voice, and comprises a microphone and a loudspeaker which are electrically connected with a power supply; the microphone is arranged on the inner side of the device body and close to the mouth of the user; the loudspeaker is arranged on the outer side of the device body.

Furthermore, at least two air vents are provided, wherein at least one air vent is used for air inlet, at least one air vent is used for air outlet, and a one-way air valve is arranged at the air vent used for air outlet; so that the vent for air outlet can only discharge air in one direction.

Furthermore, the device also comprises a lengthened vent pipe which is detachably arranged on the device body and is connected with the vent hole for air intake; extending out a vent for intake air; the application range is expanded; for example, the protective device is a floating diving mask or a swimming mask.

Drawings

FIG. 1 is a flowchart of a method for keeping the inside of the protection device breathing smoothly according to embodiment 1 of the present invention;

fig. 2 is a flowchart of step S1 of a method for keeping the inside of the protection device breathing smoothly according to embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a protection device according to embodiment 2 of the present invention;

fig. 4 is an exploded view of a shielding device according to embodiment 2 of the present invention;

fig. 5 is a schematic structural view of a vent pipe in a shielding device according to embodiment 2 of the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.