An insulating respirator mask that monitors the breathing of a firefighter

Abstract

The utility model discloses an isolated respirator mask capable of monitoring the breathing of firemen, a monitoring assembly comprises an exhalation pressure monitoring device, a breathing frequency monitoring device and an exhalation temperature and humidity monitoring device, so that the monitoring assembly can monitor the exhalation airflow pressure, breathing frequency and exhalation airflow temperature and humidity of the firemen in the respirator mask respectively, thereby more comprehensively obtaining the breathing state of the firemen in the respirator mask, improving the monitoring reliability, and through the corresponding control of the air supply state of the respirator mask by the air supply adjusting assembly, ensuring that the firemen can breathe comfortably in the respirator mask, so as to improve the safety.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology, specifically to a respirator mask. Background Technology

[0002] Positive pressure fire-fighting air breathing apparatus can effectively isolate the firefighter's face from the outside environment using a mask. The high-pressure air stored in the cylinder is depressurized and then enters the mask through the supply valve and inhalation valve for the wearer to breathe. At the same time, the exhaled air is discharged outside the mask through the exhalation valve, thereby protecting the firefighter's respiratory system.

[0003] Chinese Patent No. CN 219090904 U discloses an air respirator mask, which includes: a positive pressure fire-fighting air respirator mask body, an inhalation valve, and an exhalation valve that can monitor breathing information. The exhalation valve is installed on the positive pressure fire-fighting air respirator mask body and can monitor the breathing status of firefighters in the scenario of firefighters wearing it for operational training.

[0004] However, the breathing apparatus masks provided by the above solutions can only monitor the pressure of exhaled gas and cannot comprehensively monitor the breathing status of firefighters inside the breathing apparatus masks, resulting in unreliable monitoring results and easily causing breathing safety problems for firefighters.

[0005] Therefore, how to effectively improve the reliability of monitoring results of firefighters' breathing status and ensure the safety of firefighters using breathing apparatus masks has become an urgent problem to be solved in this field. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a self-contained breathing apparatus mask that can monitor firefighters' breathing with reliable monitoring results and high safety.

[0007] To achieve the above objectives, the present invention provides a self-contained breathing apparatus mask capable of monitoring firefighters' breathing, comprising a positive-pressure fire-fighting air breathing apparatus mask body and an air supply valve interface, an inhalation valve, and an exhalation valve disposed on the positive-pressure fire-fighting air breathing apparatus mask body. The air supply valve interface is connected to an external air cylinder via an air supply pipe, and the exhalation valve is equipped with a monitoring component, which includes an exhalation pressure monitoring device.

[0008] The monitoring components also include a respiratory rate monitoring device and an exhaled temperature and humidity monitoring device. The respiratory rate monitoring device is configured to work in conjunction with the expiratory pressure monitoring device to monitor respiratory rate, and the exhaled temperature and humidity monitoring device is configured to monitor the temperature and humidity of the exhaled airflow.

[0009] The gas supply pipe is equipped with a gas supply regulating component, which is configured to adjust the output air state of the external gas cylinder according to the monitoring results of the monitoring component.

[0010] Furthermore, the exhalation valve includes an exhalation valve seat, which is configured in a frustum shape and includes a bracket and an inlet valve cover and an exhaust valve bottom respectively disposed at both ends of the bracket.

[0011] Furthermore, the exhaled temperature and humidity monitoring device is installed inside the bracket.

[0012] Furthermore, the expiratory pressure monitoring device and the respiratory rate monitoring device are respectively installed on the bottom of the exhaust valve and connected to each other.

[0013] Furthermore, the expiratory pressure monitoring device periodically monitors the pressure of exhaled gas, and the respiratory rate monitoring device records the monitoring period of the expiratory pressure monitoring device.

[0014] Furthermore, the gas supply regulating component includes a flow regulating valve, which is disposed at the output end of the external gas cylinder.

[0015] This utility model provides an isolation respirator mask that can monitor firefighters' breathing. The monitoring components include an expiratory pressure monitoring device, a respiratory rate monitoring device, and an expiratory temperature and humidity monitoring device. This allows the monitoring components to monitor the firefighter's expiratory airflow pressure, respiratory rate, and expiratory airflow temperature and humidity in the respirator mask, thereby obtaining a more comprehensive understanding of the firefighter's breathing status in the respirator mask and improving monitoring reliability. Furthermore, the air supply regulating component controls the air supply status of the respirator mask accordingly, ensuring that the firefighter can breathe comfortably in the respirator mask, thus improving safety. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 A schematic diagram of the overall structure of the self-contained breathing apparatus mask for monitoring firefighters' breathing provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the positive pressure fire-fighting air breathing apparatus mask body of this utility model;

[0019] Figure 3 and Figure 4 This is a schematic diagram of the structure of the breather valve in this utility model;

[0020] Figure 5a and Figure 5b This is a schematic diagram of the valve diaphragm structure in this utility model;

[0021] Figure 6 This is a schematic diagram of the monitoring component in this utility model.

[0022] Figure label:

[0023] 1. Positive pressure fire-fighting air breathing apparatus mask body; 11. Mask window; 12. Sealing ring; 13. Mouth and nose cover;

[0024] 2. Air supply valve interface; 21. Air supply pipe; 3. Intake valve;

[0025] 4. Exhalation valve; 41. First group of exhalation valves; 42. Second group of exhalation valves; 43. Third group of exhalation valves; 44. Exhalation valve seat; 45. Bracket; 46. Inlet valve cover; 47. Exhaust valve base; 48. Valve core; 481. Valve diaphragm; 4811. Hydrophobic layer; 4812. Guide rib; 482. Elastic element;

[0026] 5. Monitoring components; 51. Expiratory pressure monitoring device; 52. Respiratory rate monitoring device; 53. Expiratory temperature and humidity monitoring device;

[0027] 6. External gas cylinders;

[0028] 7. Gas supply regulating component; 71. Flow regulating valve; 72. Temperature regulating device;

[0029] 8. Power supply components; 9. Communication components; 10. Camera components. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0031] See Figure 1 The image shows an example of an isolation respirator mask provided by this utility model that can monitor the breathing of firefighters.

[0032] As shown in the figure, the self-contained breathing apparatus mask for monitoring firefighters' breathing in this example includes a positive pressure fire-fighting air breathing apparatus mask body 1 and an air supply valve interface 2, an inhalation valve 3 and an exhalation valve 4 installed on the positive pressure fire-fighting air breathing apparatus mask body 1. The air supply valve interface 2 is connected to an external air cylinder 6 through an air supply pipe 21.

[0033] The exhalation valve 4 is equipped with a monitoring component 5, which includes an exhalation pressure monitoring device 51, a respiratory rate monitoring device 52, and an exhalation temperature and humidity monitoring device 53. The respiratory rate monitoring device 52 is configured to work with the exhalation pressure monitoring device 51 to monitor the respiratory rate, and the exhalation temperature and humidity monitoring device 53 is configured to monitor the temperature and humidity of the exhaled airflow to improve the reliability of monitoring the firefighter's breathing status.

[0034] Furthermore, the air supply pipe 21 is equipped with an air supply regulating component 7, which is configured to adjust the output air state of the external air cylinder 6 according to the monitoring results of the monitoring component 5, thereby improving the comfort and safety of firefighters.

[0035] Combination Figure 2 The positive pressure fire-fighting air breathing apparatus mask 1 includes a mask window 11, which is configured as a transparent convex arc shape to cover the firefighter's face and allow the firefighter to see. The end of the mask window 11 is provided with a sealing ring 12 to isolate the firefighter's face from the ambient atmosphere. The lower part of the mask window 11 is provided with a mouth and nose mask 13 corresponding to the firefighter's mouth and nose, so that when the firefighter wears this breathing apparatus mask, the mouth and nose mask 13 can be properly aligned with the firefighter's mouth and nose.

[0036] Furthermore, the mouth and nose mask 13 is equipped with an air supply valve interface 2, an inhalation valve 3, and an exhalation valve 4, respectively. The air supply valve interface 2 is connected to an external air cylinder 6 through an air supply pipe 21 to supply air into the mouth and nose mask 13, so that the firefighter can inhale through the inhalation valve 3 and exhale through the exhalation valve 4 to expel the air into the outside atmosphere, thereby enabling the firefighter to breathe in the positive pressure fire-fighting air breathing apparatus mask 1.

[0037] As a preferred configuration, the air supply valve interface 2 is located in the upper part of the top of the mouth and nose mask 13, avoiding direct contact with the firefighter's nasal cavity. This allows the supplied air to be blown obliquely from above towards the firefighter's nasal cavity, preventing the supplied air from blowing directly into the firefighter's nasal cavity and ensuring the firefighter's comfortable breathing.

[0038] As a further preferred configuration, the inhalation valves 3 are configured in two sets and symmetrically distributed at the bottom of the mouth and nose mask 13, corresponding to the firefighter's nasal cavity, so that the two sets of inhalation valves 3 can be as close as possible to the firefighter's nasal cavity, thereby improving the firefighter's comfort.

[0039] As a further preferred configuration, the exhalation valve 4 is configured in three groups. The first group of exhalation valves 41 is located in the middle of the lower part of the top of the mouth and nose mask 13. The second group of exhalation valves 42 and the third group of exhalation valves 43 are symmetrically distributed on both sides of the first group of exhalation valves 41. This allows the areas corresponding to the first group of exhalation valves 41, the second group of exhalation valves 42, and the third group of exhalation valves 43 to effectively cover the area of ​​exhaled airflow generated by the firefighter's mouth and nose, thereby quickly expelling the firefighter's exhaled airflow.

[0040] Combination Figure 3 and Figure 4Furthermore, the exhalation valve 4 includes an exhalation valve seat 44, which is configured in a frustum shape and consists of a bracket 45 and an inlet valve cover 46 and an exhaust valve bottom 47 respectively disposed at both ends of the bracket 45. This creates a cavity inside the exhalation valve seat 44 that can accommodate the valve core 48 and the monitoring component 5. This allows the valve core 48 to open the inlet valve cover 46 under the action of pressure difference, thereby expelling the firefighter's exhaled airflow. At the same time, the monitoring component 5 monitors the firefighter's exhaled airflow to obtain the firefighter's breathing status.

[0041] Specifically, the end of the intake valve cover 46 protrudes circumferentially towards the bottom of the exhaust valve 47 to form a limiting ring. The valve core 48 includes a valve diaphragm 481 and an elastic element 482. The monitoring component 5 includes an expiratory pressure monitoring device 51. The valve diaphragm 481 is placed in the expiratory valve seat 44 and cooperates with the intake valve cover 46. The expiratory pressure monitoring device 51 is placed in the expiratory valve seat 44 and cooperates with the bottom of the exhaust valve 47. The elastic element 482 is in a pre-compressed state, with one end elastically abutting against the valve diaphragm 481 and the other end elastically abutting against the expiratory pressure monitoring device 51, so that the valve diaphragm 481 abuts against the intake valve cover 46 in the initial state, and the intake valve cover 46 is closed.

[0042] Combination Figure 3 and Figure 4 When a firefighter exhales, the exhaled air exerts pressure on the valve diaphragm 481, pushing the valve diaphragm 481 to move toward the exhalation pressure monitoring device 51, and causing the elastic element 482 to compress synchronously, so that it no longer abuts against the air intake valve cover 46, opening the air intake valve cover 46, so that the exhaled air can be smoothly discharged from the bottom of the exhaust valve 47.

[0043] At the same time, the force of the valve diaphragm 481 driving the elastic element 482 to compress synchronously is transmitted to the expiratory pressure monitoring device 51, so that the expiratory pressure monitoring device 51 can monitor the pressure of the exhaled airflow.

[0044] Correspondingly, when the firefighter stops exhaling and begins inhaling, the elastic element 482 returns to its initial pre-compression state under its own elastic force, pushing the valve diaphragm 481 to move synchronously toward the air intake valve cover 46, so that the valve diaphragm 481 abuts against the air intake valve cover 46 and closes the air intake valve cover 46.

[0045] At the same time, the expiratory pressure monitoring device 51 no longer monitors the pressure of the exhaled airflow.

[0046] Here, the specific configuration of the expiratory pressure monitoring device 51 is not limited; for example, it can be composed of an existing thin-film force sensing chip. The specific configuration of the elastic element 482 is not limited; for example, it can be composed of a corresponding spring.

[0047] Combination Figure 5aTo ensure that water droplets generated by exhaled airflow do not adhere to the valve diaphragm 481 and cause errors in the monitoring results of the expiratory pressure monitoring device 51, in some embodiments, a hydrophobic layer 4811 is provided on the end face of the valve diaphragm 481 that mates with the intake valve cover 46. For example, the hydrophobic layer 4811 is composed of a waxy layer, which allows the hydrophobic layer 4811 to have a lotus leaf effect. Water droplets generated by exhaled airflow will roll off the hydrophobic layer 4811, ensuring the dryness of the valve diaphragm 481, thereby improving the reliability of the monitoring results of the expiratory pressure monitoring device 51 and extending the service life of the valve diaphragm 481.

[0048] Combination Figure 5b In some embodiments, a guide rib 4812 is formed on the end face of the valve diaphragm 481 that mates with the intake valve cover 46. For example, the guide rib 4812 is configured as an annular protrusion evenly and concentrically distributed on the surface of the valve diaphragm 481, so that the guide rib 4812 can turbulentize the exhaled airflow to ensure the stable movement of the valve diaphragm 481, thereby improving the reliability of the monitoring results of the exhalation pressure monitoring device 51.

[0049] The exhalation valve 4 thus formed works in conjunction with the exhalation pressure monitoring device 51 of the monitoring component 5. During the firefighter's breathing process, with each inhalation and exhalation, the elastic element 482 is periodically pushed, so that the exhalation pressure monitoring device 51 periodically monitors the pressure of the exhaled airflow, thereby obtaining the breathing status of the firefighter with each breath.

[0050] To monitor breathing status more reliably and ensure the comfort and safety of firefighters in this breathing apparatus mask, the monitoring component also includes a breathing rate monitoring device 52, which is configured to record the monitoring cycle of the expiratory pressure monitoring device 51 to obtain the firefighter's breathing cycle and thus calculate the breathing rate.

[0051] Furthermore, the respiratory rate monitoring device is preferably installed on the bottom 47 of the exhaust valve and connected to the expiratory pressure monitoring device 51, so that the respiratory rate monitoring device 52 can obtain the respiratory rate according to the monitoring cycle of the expiratory pressure monitoring device 51.

[0052] As an example, when the expiratory pressure monitoring device 51 detects the pressure of the exhaled airflow for the first time, the respiratory rate monitoring device 52 starts timing. When the expiratory pressure monitoring device 51 detects the pressure of the exhaled airflow for the second time, the respiratory rate monitoring device 52 stops timing. This obtains one breathing cycle of the firefighter. Correspondingly, the respiratory rate monitoring device 52 calculates the number of breathing cycles obtained per minute, which can monitor the breathing rate of the firefighter and thus obtain a reliable breathing status.

[0053] Here, the specific configuration of the respiratory rate monitoring device 52 is not limited. As an example, it can be constructed from an existing timer chip.

[0054] Furthermore, the monitoring component 5 also includes an exhaled temperature and humidity monitoring device 53, which is configured to monitor the temperature and humidity of the exhaled airflow.

[0055] Specifically, the exhalation temperature and humidity monitoring device 53 is installed inside the exhalation valve 4 and distributed on the bracket 45 of the exhalation valve seat 44 to cover the area of ​​the firefighter's exhaled airflow. During the process of the firefighter's exhaled airflow pushing the elastic element 482 to open the inlet valve cover 46 and being discharged from the bottom of the exhaust valve 47, the exhalation temperature and humidity monitoring device 53 can monitor the temperature and humidity of the exhaled airflow, thereby obtaining the breathing status and the temperature and humidity inside the respirator mask.

[0056] Here, the specific composition of the exhaled temperature and humidity monitoring device 53 is not limited. As an example, it can be composed of existing temperature and humidity measuring chips.

[0057] Combination Figure 6 The monitoring component 5 thus constitutes a device that, through the cooperation of the expiratory pressure monitoring device 51, the respiratory rate monitoring device 52, and the expiratory temperature and humidity monitoring device 53, can respectively obtain the pressure, respiratory rate, and temperature and humidity of the airflow exhaled by the firefighter in the breathing apparatus mask, so as to effectively improve the reliability of the monitoring results of the breathing status.

[0058] To ensure the breathing comfort and safety of firefighters, this breathing apparatus mask also includes an air supply regulation component 7, which is configured to regulate the air supplied to the mouth and nose mask 13 by the air supply valve interface 2 based on the breathing status monitoring results obtained by the monitoring component 5, so as to ensure that firefighters can breathe comfortably.

[0059] Combination Figure 1 Specifically, the air supply regulating component 7 includes a flow regulating valve 71 installed on the air supply pipe 21. One end of the air supply pipe 21 is connected to the air supply valve interface 2 on the positive pressure fire-fighting air breathing apparatus mask 1, and the other end is connected to an external air cylinder 6 through the flow regulating valve 71, so that the flow regulating valve 71 can regulate the output air flow of the external air cylinder 6.

[0060] Furthermore, the air supply regulating component 7 also includes a temperature regulating device 72, which is installed on the air supply pipe 21 between the flow regulating valve 71 and the air supply valve interface 2. This allows the output air after the flow rate is regulated to be regulated by the temperature regulating device 72 before entering the positive pressure fire-fighting air breathing apparatus mask 1 for firefighters to breathe, thereby regulating their breathing state.

[0061] Here, the specific configuration of the temperature regulating device 72 is not limited. As an example, it can be constructed from an existing stable and reliable temperature regulating device to achieve the above purpose.

[0062] As an example, in this instance, the temperature regulating device 72 can also be composed of a temperature regulating sleeve. Preferably, the temperature regulating sleeve covers the outside of the entire air supply pipe 21 and contains a temperature regulating solution, such as water, inside. By adjusting the temperature of the temperature regulating solution, the temperature of the air passing through the temperature regulating sleeve can be regulated.

[0063] As an example, if the breathing rate monitoring device 52 of the monitoring component 5 detects that the breathing rate is too fast, the flow rate of the air output from the external air cylinder 6 is increased by adjusting the opening of the flow regulating valve 71 to meet the air demand of the firefighter when breathing rapidly. Preferably, the opening of the flow regulating valve 71 should be adjusted gradually to avoid excessive output air flow, which would cause the pressure inside the positive pressure fire breathing apparatus mask 1 to be too high, affecting wearing comfort and safety.

[0064] If the respiratory rate monitoring device 52 of the monitoring component 5 detects that the respiratory rate is too slow, the opening of the flow regulating valve 71 is adjusted. The adjustment method of the flow regulating valve 71 is the opposite, which will not be described in detail here.

[0065] Furthermore, if the exhaled air temperature and humidity monitoring device 53 of the monitoring component 5 detects that the temperature and humidity of the exhaled airflow are too high, it will cause fog to form inside the positive pressure fire-fighting air breathing apparatus mask 1, obstructing vision. By adjusting the temperature of the temperature regulating solution in the temperature regulating device 72, the temperature of the output air is reduced, so that the lower temperature output air exchanges heat with the higher temperature air inside the positive pressure fire-fighting air breathing apparatus mask 1 and the exhaled water vapor, thereby reducing the air temperature inside the positive pressure fire-fighting air breathing apparatus mask 1. At the same time, by adjusting the opening of the flow regulating valve 71, the flow rate of the air output from the external air cylinder 6 is increased, so that the output air can carry away the heat inside the positive pressure fire-fighting air breathing apparatus mask 1 and dissipate the fog.

[0066] If the exhaled air temperature and humidity monitoring device 53 of the monitoring component 5 detects that the temperature and humidity of the exhaled airflow are too low, the flow regulating valve 71 and the temperature regulating device 72 will be adjusted in opposite ways, which will not be described in detail here.

[0067] Therefore, by cooperating with the flow regulating valve 71 and the temperature regulating device 72, the temperature and flow rate of the output air can be slightly adjusted without causing resistance to the firefighter's breathing. At the same time, the temperature and flow rate of the output air can be adjusted to regulate the temperature and humidity of the exhaled airflow, thereby improving the firefighter's comfort and safety.

[0068] Furthermore, combined Figure 4 and Figure 6The respirator mask also includes a power supply component 8 and a communication component 9. The power supply component 8 and the communication component 9 are respectively installed inside the positive pressure fire-fighting air respirator mask body 1, preferably inside the breathing valve 6, and are respectively connected to the monitoring component 5 and the air supply regulating component 7, providing working power to the monitoring component 5 and the air supply regulating component 7 and realizing communication connection, so as to ensure the stable cooperation of the monitoring component 5 and the air supply regulating component 7, thereby improving the reliability of the respirator mask.

[0069] Here, the specific configuration of the power supply component 8 and the communication component 9 is not limited. For example, the power supply component 8 can be composed of an existing driving power supply, and the communication component 9 can be composed of a Bluetooth communication module or other communication modules.

[0070] Combination Figure 1 In some embodiments, the respirator mask also includes camera components 10 distributed at different positions on the positive pressure fire-fighting air respirator mask body 1. The camera components 10 are provided with a shooting module and a storage module, so that the camera components 10 can take pictures of the external environment of the positive pressure fire-fighting air respirator mask body 1 from multiple angles through the shooting module and store the pictures in the storage module for easy retrieval later.

[0071] Here, the specific composition of the camera component 10 is not limited. For example, it can be composed of an existing infrared camera.

[0072] The following example illustrates the working process of this utility model in a specific application. It should be noted that the content described here is only a specific application example of this solution and does not constitute a limitation on this solution.

[0073] Firefighters wear the positive pressure fire-fighting air breathing apparatus mask 1 on their heads and cover their faces with the mask window 11. The air supply valve interface 2 delivers air from the external air cylinder 6 to the mouth and nose mask 13 through the air supply pipe 21. Firefighters inhale through the inhalation valve 3 and exhale through the exhalation valve 4 to the outside atmosphere, thus enabling firefighters to breathe in the positive pressure fire-fighting air breathing apparatus mask 1.

[0074] When a firefighter exhales, the exhaled airflow exerts pressure on the valve diaphragm 481, pushing the valve diaphragm 481 to move toward the exhalation pressure monitoring device 51, and causing the elastic element 482 to compress synchronously, so that it no longer abuts against the air intake valve cover 46, opening the air intake valve cover 46, so that the exhaled airflow can be smoothly discharged from the bottom of the exhaust valve 47.

[0075] At the same time, the force of the valve diaphragm 481 driving the elastic element 482 to compress synchronously is transmitted to the expiratory pressure monitoring device 51, so that the expiratory pressure monitoring device 51 can monitor the pressure of the exhaled airflow.

[0076] When the firefighter stops exhaling and begins to inhale, the elastic element 482 returns to its initial pre-compression state under its own elastic force, pushing the valve diaphragm 481 to move synchronously toward the air intake valve cover 46, so that the valve diaphragm 481 abuts against the air intake valve cover 46 and closes the air intake valve cover 46.

[0077] At the same time, the expiratory pressure monitoring device 51 no longer monitors the pressure of the exhaled airflow.

[0078] Thus, the expiratory pressure monitoring device 51 periodically monitors the pressure of the exhaled airflow.

[0079] During this process, when the expiratory pressure monitoring device 51 detects the pressure of the exhaled airflow for the first time, the respiratory rate monitoring device 52 starts timing. When the expiratory pressure monitoring device 51 detects the pressure of the exhaled airflow for the second time, the respiratory rate monitoring device 52 stops timing and monitors the firefighter's respiratory rate.

[0080] Meanwhile, the exhaled air temperature and humidity monitoring device 53 can monitor the temperature and humidity of the exhaled airflow, thereby obtaining the breathing status and the temperature and humidity inside the respirator mask.

[0081] Meanwhile, the air supply regulating component 7, based on the breathing status monitored by the monitoring component 5, makes minor adjustments to the temperature and flow rate of the output air through the cooperation of the flow regulating valve 71 and the temperature regulating device 72, thereby regulating the breathing frequency and the temperature and humidity of the exhaled airflow to improve the comfort and safety of firefighters.

[0082] The self-contained breathing apparatus mask provided by this utility model can reliably detect and regulate the breathing status of firefighters through the air supply valve interface 2, inhalation valve 3 and exhalation valve 4 on the breathing apparatus mask body 1, as well as the monitoring component 5 and air supply adjustment component 7, ensuring the comfort and safety of firefighters.

[0083] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-contained breathing apparatus mask capable of monitoring firefighters' breathing, comprising a positive-pressure fire-fighting air breathing apparatus mask body and an air supply valve interface, an inhalation valve, and an exhalation valve disposed on the positive-pressure fire-fighting air breathing apparatus mask body, wherein the air supply valve interface is connected to an external air cylinder via an air supply pipe, and the exhalation valve is provided with a monitoring component, the monitoring component including an exhalation pressure monitoring device, characterized in that, The monitoring components also include a respiratory rate monitoring device and an exhaled temperature and humidity monitoring device. The respiratory rate monitoring device is configured to work in conjunction with the expiratory pressure monitoring device to monitor respiratory rate, and the exhaled temperature and humidity monitoring device is configured to monitor the temperature and humidity of the exhaled airflow. The gas supply pipe is equipped with a gas supply regulating component, which is configured to adjust the output air state of the external gas cylinder according to the monitoring results of the monitoring component.

2. The self-contained breathing apparatus mask for monitoring firefighters' breathing according to claim 1, characterized in that, The exhalation valve includes an exhalation valve seat, which is configured in a frustum shape and includes a bracket and an inlet valve cover and an exhaust valve bottom respectively disposed at both ends of the bracket.

3. The self-contained breathing apparatus mask for monitoring firefighters' breathing according to claim 2, characterized in that, The exhaled temperature and humidity monitoring device is installed inside the bracket.

4. The self-contained breathing apparatus mask for monitoring firefighters' breathing according to claim 2, characterized in that, The expiratory pressure monitoring device and the respiratory rate monitoring device are respectively installed on the bottom of the exhaust valve and are connected to each other.

5. The self-contained breathing apparatus mask for monitoring firefighters' breathing according to claim 1, characterized in that, The expiratory pressure monitoring device periodically monitors the pressure of exhaled gas, and the respiratory rate monitoring device records the monitoring period of the expiratory pressure monitoring device.

6. The self-contained breathing apparatus mask for monitoring firefighters' breathing according to claim 1, characterized in that, The gas supply regulating component includes a flow regulating valve, which is located at the output end of the external gas cylinder.

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