Intelligent respirator system for gas mask

Abstract

The utility model provides an intelligent respirator system for a gas mask, which comprises a respirator body, the respirator body is a flat single-tank filter piece structure provided with straps, a filter piece interface and a fan interface are arranged in parallel from top to bottom on the front side of the respirator body, the filter piece interface is in threaded connection with a filter piece, and the fan interface is in threaded connection with the filter piece. The fan interface is connected with a ventilation system, a communication system is arranged on the back face of the respirator body, a control system is arranged on the back face of the ventilation system, the ventilation system is connected with a mask interface of the gas mask through a corrugated pipe, and an air pressure monitoring module is arranged in the gas mask water blocking cover. The breathing apparatus can be automatically adjusted to filter and supply air to the gas mask, early warning can be carried out on whether the current environment is suitable for the working mode of the breathing apparatus or not, the environmental use safety of the breathing apparatus is ensured, meanwhile, the high-altitude air rarefaction environment can be automatically recognized, the breathing requirement of personnel in the high-altitude environment is met, and the use safety of operating personnel is effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of breathing assistance technology for gas masks, specifically an intelligent respirator system for gas masks. Background Technology

[0002] Self-priming gas masks suffer from excessive breathing resistance. Currently, improving breathing comfort primarily involves using electric air supply units to filter and deliver air to the mask. However, most air supply units on the market operate on a fixed airflow mode, failing to adapt to the worker's breathing rhythm. They cannot reduce or stop airflow during exhalation, and the required airflow varies depending on the workload during inhalation, making it difficult to fundamentally solve the problems of excessive breathing resistance and comfort. Furthermore, in filtered airflow mode, current air supply units cannot monitor the working environment or provide warnings about the respirator's operating mode. It's difficult to determine whether the current contaminated environment is suitable for using this mode. In situations where oxygen concentration is too low, or where air supply is unsuitable, using an air supply unit to filter and deliver air to the gas mask could seriously endanger the worker's life. Additionally, in high-altitude, thin-air environments, rapid assessment of the high-altitude environment and timely adjustment of the respirator's airflow are necessary to meet the breathing needs of personnel at high altitudes, which existing air supply units struggle to address.

[0003] Prior art document CN109603024A discloses an automatically adjustable positive pressure powered air-purifying gas mask and its control system. Its protected claim is: "It includes a breathing mask and a powered air-purifying respirator, wherein the air inlet of the breathing mask and the air outlet of the powered air-purifying respirator are connected through an air supply pipe. This invention eliminates the need for users to mechanically adjust the airflow, thus improving breathing comfort and ease of use; it facilitates the detection of ambient temperature, humidity, and toxic gas content, displayed on an LCD screen; it uses an integrated voice communication system for voice communication with nearby teammates and a remote command center; it can monitor the filtration function of the respirator's filter in real time, preventing harm caused by filter failure; it has a clever structure, novel design, and good application prospects." Its main problems addressed are intelligent adjustment of the airflow within the gas mask, detection of ambient temperature, humidity, and toxic gas content, voice communication, and real-time monitoring of the filter function. However, it cannot address the challenges of high-altitude, thin-air environments, thus failing to meet the breathing needs of personnel in high-altitude environments.

[0004] Therefore, there is an urgent need for an intelligent respirator system for gas masks to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an intelligent respirator system for gas masks to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an intelligent respirator system for gas masks, comprising a respirator body, wherein the respirator body is a flat single-canister filter structure with a shoulder strap, and the front of the respirator body is provided with a filter interface and a fan interface arranged side by side from top to bottom, the filter interface being threadedly connected to the filter, the fan interface being connected to a ventilation system, a communication system being provided on the back of the respirator body, a control system being provided on the back of the ventilation system, the ventilation system being connected to the mask interface of the gas mask through a corrugated pipe, and an air pressure monitoring module being provided inside the water-resistant cover of the gas mask.

[0007] Preferably, the ventilation system includes a fan cavity, a fan is provided inside the fan cavity, an exhaust port is provided on the front of the fan cavity, an exhaust port is provided on the side of the fan cavity, the exhaust port is connected to the fan interface, the exhaust port is connected to the fan connector, the fan connector is connected to one end of the corrugated pipe, and the fan cavity is an airtight cavity.

[0008] Preferably, the communication system includes a communication module cavity, a communication module motherboard is disposed inside the communication module cavity, a first battery compartment is disposed on the side of the communication module cavity, and an antenna mounting cavity is disposed on the front of the communication module cavity.

[0009] Preferably, an antenna is installed inside the antenna mounting cavity, a first battery is provided in the first battery compartment, the antenna interface of the communication module motherboard is electrically connected to the antenna, and the first battery is electrically connected to the power interface of the communication module motherboard.

[0010] Preferably, the communication module motherboard includes a voltage regulator module, a Bluetooth module, a WiFi module, a radio frequency module, a processor module, and an antenna interface, wherein the voltage regulator module, Bluetooth module, WiFi module, and radio frequency module are electrically connected to the processor module.

[0011] Preferably, the control system includes a control cavity, and a sealing ring is provided at the connection between the control cavity and the fan cavity for sealing connection. The control cavity is a watertight cavity. A gas detection cavity is provided on the side of the control cavity. A microcontroller, a power module, a wireless module, a fan drive module, and an alarm module are provided inside the control cavity. A button module, an indicator module, and a second battery compartment are provided on the outer surface of the control cavity. The button module includes a power on / off button, an automatic / manual mode switching button, and a gear switching button.

[0012] Preferably, a second battery is installed in the second battery compartment, a gas collection port is provided on the side of the gas detection chamber, a gas detection sensor array is provided in the gas detection chamber, the signal ports of the wireless module, the gas detection sensor array, the button module, the indicator module, the alarm module, and the fan drive module are respectively electrically connected to the microcontroller, and the output port of the fan drive module is electrically connected to the fan.

[0013] Preferably, the second battery is electrically connected to the input port of the power module to output multiple voltages, and the output port of the power module is electrically connected to the power ports of the microcontroller, the wireless module, the gas detection sensor array, the alarm module, and the fan drive module, respectively. The wireless module is wirelessly connected to the communication module motherboard and the air pressure monitoring module, respectively.

[0014] Preferably, the power module contains multiple voltage conversion chips, the gas detection sensor array contains an oxygen concentration sensor, a carbon dioxide sensor, and a pressure sensor, the wireless module contains Bluetooth and WiFi modules, and the pressure monitoring module contains a pressure sensing module, a Bluetooth module, a low-power microcontroller module, a voltage conversion module, and a button battery. The pressure sensing module and the Bluetooth module are electrically connected to the low-power microcontroller module, and the voltage conversion module is electrically connected to the button battery to provide power to the module.

[0015] The present invention has the following beneficial effects:

[0016] 1. This utility model can automatically adjust the respirator to filter and deliver air to the gas mask by simply collecting the breathing pressure inside the gas mask, following the human breathing rhythm, thus fundamentally solving the problem of breathing comfort for gas mask users.

[0017] 2. This utility model provides an early warning system for the working mode of the respirator's filtration and air supply, which can provide an early warning on whether the current environment is suitable for the respirator's working mode, making the respirator's environmental use safer.

[0018] 3. This utility model can automatically identify the thin air environment at high altitudes based on the air pressure environment, and adjust the air volume of the respirator in a timely manner to increase the air volume, making it more friendly to personnel working in high-altitude environments.

[0019] 4. This utility model provides the functions of accessing sensor data and remote wireless data transmission, which can complete data transmission without the need for external communication equipment, making it more convenient to use;

[0020] 5. This utility model adopts an integrated design, which has a high degree of integration and is convenient to wear and use;

[0021] 6. This utility model has an intelligent respirator system with a simple structure and convenient operation. It provides manual and automatic control modes. In automatic mode, the intelligent respirator can work while wearing a gas mask. The intelligent respirator will automatically stop working when the gas mask is removed, thus meeting the requirements for convenient control and use. Attached Figure Description

[0022] Figure 1 This is a side view of the overall structure of the intelligent respirator system for gas masks of this utility model;

[0023] Figure 2 This is a schematic diagram of the connection structure between the intelligent respirator and the gas mask of this utility model;

[0024] Figure 3 This is the overall circuit structure diagram of this utility model;

[0025] Figure 4 This is a schematic diagram of the rear structure of the intelligent respirator system of this utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the communication module cavity of this utility model;

[0027] Figure 6 This is a schematic diagram of the side structure of the cavity of the communication module of this utility model;

[0028] Figure 7 This is a schematic diagram of the internal structure of the fan cavity of this utility model;

[0029] Figure 8 This is a schematic diagram of the internal structure of the control cavity of this utility model;

[0030] Figure 9 This is a schematic diagram of the outer surface structure of the control cavity of this utility model;

[0031] Figure 10 This is a schematic diagram of the internal structure of the gas mask tested under this utility model;

[0032] In the diagram: 1. Respirator body; 2. Filter interface; 3. Fan interface; 4. Communication module cavity; 5. Antenna mounting cavity; 6. Communication module motherboard; 7. First battery compartment; 8. First battery; 9. Microcontroller; 10. Power module; 11. Wireless module; 12. Gas detection sensor array; 13. Button module; 14. Indicator module; 15. Fan drive module; 16. Fan cavity; 17. Control cavity; 18. Exhaust vent; 19. Exhaust vent; 20. Second battery compartment; 21. Second battery; 22. Air pressure monitoring module; 23. Corrugated pipe; 24. Fan connector; 25. Mask connector; 26. Gas detection cavity; 27. Antenna; 28. Alarm module; 29. ​​Filter; 30. Control system; 31. Gas mask; 32. Communication system; 33. Ventilation system; 34. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0034] See Figures 1 to 10 A smart respirator system for gas masks includes a respirator body 1, which is a flat single-canister filter structure with a shoulder strap. A filter interface 2 and a fan interface 3 are arranged side-by-side from top to bottom on the front of the respirator body 1. The filter interface 2 is threadedly connected to the filter 30. The fan interface 3 is connected to a ventilation system 34. A communication system 33 is located on the back of the respirator body 1. A control system 31 is located on the back of the ventilation system 34. The ventilation system 34 is connected to the mask interface 26 of the gas mask 32 via a corrugated pipe 24. A pressure monitoring module 23 is installed inside the water-resistant cover of the gas mask 32.

[0035] Preferably, the ventilation system 34 includes a fan cavity 17, a fan 16 is disposed within the fan cavity 17, an exhaust port 19 is provided on the front of the fan cavity 17, and an exhaust port 20 is provided on the side of the fan cavity 17. The exhaust port 19 is connected to the fan interface 3, and the exhaust port 20 is connected to the fan connector 25. The fan connector 25 is connected to one end of the corrugated pipe 24. The fan cavity 17 is an airtight cavity. The fan 16 is a high-volume turbine blower, and the main body of the corrugated pipe 24 is made of butyl rubber material.

[0036] Preferably, the communication system 33 includes a communication module cavity 4, a communication module motherboard 6 is disposed inside the communication module cavity 4, a first battery compartment 7 is disposed on the side of the communication module cavity 4, and an antenna mounting cavity 5 is disposed on the front of the communication module cavity 4.

[0037] Preferably, an antenna 28 is installed inside the antenna mounting cavity 5, a first battery 8 is provided inside the first battery compartment 7, the antenna interface of the communication module motherboard 6 is electrically connected to the antenna 28, and the first battery 8 is electrically connected to the power interface of the communication module motherboard 6. The antenna 28 is two omnidirectional flexible patch antennas.

[0038] Preferably, the communication module motherboard 6 includes a voltage regulator module, a Bluetooth module, a WiFi module, a radio frequency module, a processor module, and an antenna interface, wherein the voltage regulator module, Bluetooth module, WiFi module, and radio frequency module are electrically connected to the processor module.

[0039] Preferably, the control system 31 includes a control cavity 18, which is sealed to the fan cavity 17 with a sealing ring. The control cavity 18 is a watertight cavity. A gas detection cavity 27 is provided on the side of the control cavity 18. The control cavity 18 contains a microcontroller 9, a power module 10, a wireless module 11, a fan drive module 15, and an alarm module 29. The outer surface of the control cavity 18 is provided with a button module 13, an indicator module 14, and a second battery compartment 21. The button module 13 includes a power on / off button, an automatic / manual mode switch button, and a gear switch button. The microcontroller 9 is a high-performance single-chip microcomputer, the indicator module 14 includes three-color LED indicator lights, and the alarm module 29 uses a buzzer.

[0040] Preferably, a second battery 22 is installed in the second battery compartment 21, a gas collection port is provided on the side of the gas detection chamber 27, a gas detection sensor array 12 is provided in the gas detection chamber 27, the signal ports of the wireless module 11, the gas detection sensor array 12, the button module 13, the indicator module 14, the alarm module 29, and the fan drive module 15 are respectively electrically connected to the microcontroller 9, and the output port of the fan drive module 15 is electrically connected to the fan 16.

[0041] Preferably, the second battery 22 is electrically connected to the input port of the power module 10 to output multiple voltages. The output port of the power module 10 is electrically connected to the power ports of the microcontroller 9, the wireless module 11, the gas detection sensor array 12, the alarm module 29, and the fan drive module 15, respectively. The wireless module 11 is wirelessly connected to the communication module motherboard 6 and the air pressure monitoring module 23, respectively.

[0042] Preferably, the power module 10 contains multiple voltage conversion chips, the gas detection sensor array 12 contains an oxygen concentration sensor, a carbon dioxide sensor, and a pressure sensor, the wireless module 11 contains a Bluetooth and WiFi module, and the pressure monitoring module 23 contains a pressure sensing module, a Bluetooth module, a low-power microcontroller module, a voltage conversion module, and a button battery. The pressure sensing module and the Bluetooth module are electrically connected to the low-power microcontroller module, and the voltage conversion module is electrically connected to the button battery to provide power to the module.

[0043] The working process and working principle of this utility model are as follows:

[0044] Following the instructions, the tester connected the respirator body 1 to the gas mask via the bellows 24 through the fan connector 25 and mask connector 26. The pressure monitoring module 23 was installed inside the water-resistant cover of the gas mask. The respirator body 1 was carried on the back using the shoulder straps. The smart respirator was powered on using the button module 13. The gas mask was worn. The pressure monitoring module 23's pressure sensor module collected data on the human breathing pressure inside the gas mask, and the gas detection sensor array 12 collected data on ambient oxygen, air pressure, and carbon dioxide concentrations. The microcontroller 9 read the human breathing pressure data from the pressure monitoring module 23 via the wireless module 11. The microcontroller 9 reads oxygen, air pressure, and carbon dioxide concentration data from the gas detection sensor array 12. When the microcontroller 9 detects that the human respiratory pressure data exceeds the working threshold, the microcontroller 9 obtains the maximum pressure change in the expiratory zone and the minimum pressure change in the inspiratory zone within the respiratory cycle based on the human respiratory pressure data from the air pressure monitoring module 23. The microcontroller 9 calculates the time between the maximum pressure changes in two consecutive respiratory cycles using a built-in timer, thus obtaining the time T of a single respiratory cycle. The microcontroller 9 calculates the number of human breaths per minute, i.e., the real-time respiratory rate R of the human body, based on the time of a single respiratory cycle.Microcontroller 9 calculates the average value P of the maximum pressure change in the expiratory zone and the minimum pressure change in the inspiratory zone within a single respiratory cycle. Microcontroller 9 calculates the current altitude H based on the air pressure data from the gas detection sensor array 12. Microcontroller 9 divides the respiratory rate into multiple frequency segments from low to high according to the human body's working state. Each frequency segment corresponds to multiple fan speed settings; the higher the frequency segment, the greater the fan speed. Microcontroller 9 judges the monotonically rising and falling trends of the respiratory pressure data. If the pressure rises monotonically to the average value P, it is determined that the body has entered the expiratory zone; if it falls monotonically to the average value P, it is determined that the body has entered the inspiratory zone. When microcontroller 9 determines that the body has entered the exhalation zone, it sends a PWM command to fan drive module 15 to stop fan 16. When microcontroller 9 determines that the body has entered the inhalation zone, it determines that the body's real-time respiratory rate R is within a certain frequency range. It then sends a PWM command to fan drive module 15 to drive fan 16 to operate at the corresponding fan speed for that frequency range. Microcontroller 9 also drives indicator module 14 to indicate the current airflow speed. Based on data from gas detection sensor array 12, when the oxygen concentration detected by gas detection sensor array 12 is lower than the oxygen warning setting or the carbon dioxide warning setting, microcontroller 9 will... If the carbon dioxide content exceeds the carbon dioxide warning setting value and the altitude H is less than the altitude warning setting value, it is determined that the current environment is unsuitable for the respirator's working mode. The microcontroller 9 sends a control command to drive the alarm module 29 to sound an alarm. The alarm module 29 continuously sounds an alarm to prompt the operator to evacuate the current work area. When the microcontroller 9 calculates that the current altitude H is greater than the altitude warning setting value, it is determined that the current ambient air is thin. The microcontroller sends a PWM command to the fan drive module 15 to drive the fan 16 to increase the air volume in the inhalation zone. The microcontroller 9 transmits the sensor data read from the gas detection sensor array 12 to the wireless module. 11 sends data to the communication module motherboard 6, which then transmits the gas detection sensor array 12 sensor data to the remote command terminal. Simultaneously, the communication module motherboard 6 provides a wireless sensor data input for external detection modules, enabling the transmission of sensor data from external detection modules. When the microcontroller 9 detects that the human breathing pressure data is below the working threshold, it determines that the operator is not using the intelligent respirator. The microcontroller 9 then sends a PWM command to the fan drive module 15 to stop the fan 16. When the button module 13 switches to manual mode, the airflow level can be manually switched by pressing the buttons to increase or decrease the level.

[0045] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A smart respirator system for gas masks, characterized in that: The respirator includes a respirator body (1), which is a flat single-canister filter structure with a shoulder strap. The respirator body (1) has a filter interface (2) and a fan interface (3) arranged side by side from top to bottom on the front. The filter interface (2) is connected to the filter (30) by a thread. The fan interface (3) is connected to a ventilation system (34). A communication system (33) is provided on the back of the respirator body (1). A control system (31) is provided on the back of the ventilation system (34). The ventilation system (34) is connected to the mask interface (26) of the gas mask (32) through a corrugated pipe (24). A pressure monitoring module (23) is provided inside the water-resistant cover of the gas mask (32).

2. The intelligent respirator system for gas masks according to claim 1, characterized in that: The ventilation system (34) includes a fan cavity (17), a fan (16) is provided inside the fan cavity (17), an exhaust port (19) is provided on the front of the fan cavity (17), an exhaust port (20) is provided on the side of the fan cavity (17), the exhaust port (19) is connected to the fan interface (3), the exhaust port (20) is connected to the fan connector (25), the fan connector (25) is connected to one end of the corrugated pipe (24), and the fan cavity (17) is an airtight cavity.

3. The intelligent respirator system for gas masks according to claim 1, characterized in that: The communication system (33) includes a communication module cavity (4), a communication module motherboard (6) is provided inside the communication module cavity (4), a first battery compartment (7) is provided on the side of the communication module cavity (4), and an antenna mounting cavity (5) is provided on the front of the communication module cavity (4).

4. The intelligent respirator system for gas masks according to claim 3, characterized in that: The antenna (28) is installed inside the antenna mounting cavity (5), and the first battery (8) is provided in the first battery compartment (7). The antenna interface of the communication module motherboard (6) is electrically connected to the antenna (28), and the first battery (8) is electrically connected to the power interface of the communication module motherboard (6).

5. The intelligent respirator system for gas masks according to claim 3, characterized in that: The communication module motherboard (6) includes a voltage regulator module, a Bluetooth module, a WiFi module, a radio frequency module, a processor module, and an antenna interface. The voltage regulator module, Bluetooth module, WiFi module, and radio frequency module are electrically connected to the processor module.

6. The intelligent respirator system for gas masks according to claim 1, characterized in that: The control system (31) includes a control cavity (18), and a sealing ring is provided at the connection between the control cavity (18) and the fan cavity (17). The control cavity (18) is a watertight cavity. A gas detection cavity (27) is provided on the side of the control cavity (18). The control cavity (18) is provided with a microcontroller (9), a power module (10), a wireless module (11), a fan drive module (15), and an alarm module (29). The outer surface of the control cavity (18) is provided with a button module (13), an indicator module (14), and a second battery compartment (21). The button module (13) includes a power on / off button, an automatic / manual mode switching button, and a gear switching button.

7. The intelligent respirator system for gas masks according to claim 6, characterized in that: The second battery compartment (21) is equipped with a second battery (22). The gas detection chamber (27) has a gas collection port on its side. The gas detection chamber (27) is equipped with a gas detection sensor array (12). The signal ports of the wireless module (11), the gas detection sensor array (12), the button module (13), the indicator module (14), the alarm module (29), and the fan drive module (15) are electrically connected to the microcontroller (9). The output port of the fan drive module (15) is electrically connected to the fan (16).

8. The intelligent respirator system for gas masks according to claim 7, characterized in that: The second battery (22) is electrically connected to the input port of the power module (10) to output multiple voltages. The output port of the power module (10) is electrically connected to the power ports of the microcontroller (9), the wireless module (11), the gas detection sensor array (12), the alarm module (29), and the fan drive module (15). The wireless module (11) is wirelessly connected to the communication module motherboard (6) and the air pressure monitoring module (23).

9. A smart respirator system for a gas mask according to claim 8, characterized in that: The power module (10) contains multiple voltage conversion chips. The gas detection sensor array (12) contains an oxygen concentration sensor, a carbon dioxide sensor, and a pressure sensor. The wireless module (11) contains a Bluetooth and WiFi module. The pressure monitoring module (23) contains a pressure sensing module, a Bluetooth module, a low-power microcontroller module, a voltage conversion module, and a button battery. The pressure sensing module and the Bluetooth module are electrically connected to the low-power microcontroller module, and the voltage conversion module is electrically connected to the button battery to provide power to the module.

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