Lightweight intelligent communication air respirator

Abstract

The application discloses a kind of lightweight intelligent communication air breathing apparatus, belong to respiratory protection equipment technical field, the composite structure of the gas cylinder body is set to macromolecular inner liner layer, honeycomb sandwich and fiber reinforced pressure layer, can be while guaranteeing bottle body pressure resistance performance Optimization structure weight and rigidity distribution, it is favorable to improve gas storage structure utilization and reduce overall burden.By setting hollow openwork skeleton type back frame main body, flexible back pad and wiring slot, make the burden module in weight reduction While giving consideration to back fit, stress dispersion and pipeline storage, to improve wearing comfort and operation safety;By embedding high-pressure pipeline and medium-pressure pipeline in the wiring slot of back frame main body, reduce exposed pipeline, reduce the risk of being hung in fire or narrow space and bumped.By setting flow guide anti-fog structure and head-up display component, it is favorable to improve the visibility of face mirror, and the user directly obtains air pressure and alarm information in low visibility environment.

Description

Technical Field

[0001] This invention relates to the field of respiratory protective equipment technology, specifically to a lightweight intelligent communication air respirator. Background Technology

[0002] Positive pressure breathing apparatus (SPBA) is widely used in firefighting, emergency rescue, chemical disaster relief, underground space operations, and other oxygen-deficient or toxic and hazardous environments. It is an important personal protective equipment to ensure the respiratory safety of users. Existing SPBAs typically consist of an air cylinder, a backpack frame, a depressurization supply system, and a full-face mask. While they can meet basic respiratory protection needs, they still have significant shortcomings in high-intensity, long-term, and complex operating conditions.

[0003] Existing self-contained breathing apparatuses (SCBAs) are relatively heavy. In addition to the SCBA, firefighters also need to carry protective clothing, helmets, lighting equipment, communication equipment, and breaching tools. The excessive weight further increases the user's physical exertion, affecting continuous work capacity and operational flexibility. Furthermore, existing gas cylinder structures mostly use traditional composite cylinder designs. Given the limitations on cylinder dimensions, it's difficult to balance the gas storage capacity per unit volume with structural weight, easily leading to insufficient gas storage or increased overall weight. Existing communication systems are usually used in conjunction with the SCBA as external devices, resulting in low integration, numerous exposed components, and susceptibility to scraping, detachment, or damage in fire scenes. Separate power supplies also increase maintenance burdens. In addition, the high-pressure pipelines, medium-pressure pipelines, pressure displays, and alarm structures in existing gas supply control systems are often scattered, with some pipelines clearly exposed and easily snagged in complex environments. Simultaneously, the pressure information acquisition method is limited, making it difficult for users to quickly and accurately obtain crucial information such as remaining air volume in noisy, low-visibility environments. Therefore, a lightweight intelligent communication SCBA is proposed. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, one objective of this invention is to propose a lightweight intelligent communication air respirator. This lightweight intelligent communication air respirator can optimize the structural weight and stiffness distribution while ensuring the pressure resistance of the cylinder body by setting the cylinder body as a composite structure of a polymer inner liner, a honeycomb interlayer, and a fiber-reinforced pressure-bearing layer. This is beneficial to improving the utilization rate of the gas storage structure and reducing the overall burden of the device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lightweight intelligent communication air respirator, comprising: an air cylinder module, a backpack module, a mask module, and an air supply control module; the air cylinder module is mounted on the backpack module, and the air supply control module is connected to both the air cylinder module and the mask module; The gas cylinder module includes a gas cylinder body and a cylinder valve assembly disposed at the end of the gas cylinder body. The gas cylinder body includes a polymer inner liner layer, a honeycomb interlayer disposed on the outside of the polymer inner liner layer, and a fiber-reinforced pressure-bearing layer disposed on the outside of the honeycomb interlayer. The carrying module includes a back frame body, a mounting base for mounting the gas cylinder module, a shoulder strap assembly, a waist belt assembly, and a flexible back pad disposed inside the back frame body. The back frame body is provided with a wiring groove for accommodating pipelines. The mask module includes a mask housing, a mask mirror, an air supply interface, a communication component, and a heads-up display component, wherein the communication component is embedded in the mask housing; The gas supply control module includes a two-stage pressure reducer connected to the cylinder valve assembly, a high-pressure pipeline and a medium-pressure pipeline connected to the two-stage pressure reducer, a gas supply valve connected to the medium-pressure pipeline, and a pressure alarm assembly. The high-pressure pipeline and the medium-pressure pipeline are at least partially embedded in the wiring groove. The communication components include a bone conduction pickup unit, an air conduction pickup unit, a bone conduction hearing unit, and a speaker unit. The head-up display component is signal-connected to the pressure alarm component to display the gas cylinder pressure and alarm information.

[0007] Preferably, the honeycomb interlayer is composed of multiple honeycomb units distributed along the circumference and axial direction of the gas cylinder body, and the cross-section of the honeycomb unit is a polygonal structure.

[0008] Preferably, the bottle valve assembly includes a main valve body, a rupture disc, and a safety relief valve, wherein the rupture disc and the safety relief valve constitute a dual overpressure protection structure.

[0009] Preferably, the back frame body includes a main load-bearing beam extending longitudinally and transverse reinforcing ribs connecting the main load-bearing beams, and the non-main load-bearing area of ​​the back frame body is provided with a weight-reducing hollow section.

[0010] Preferably, the flexible back pad includes multiple independent airbag sections and a flame-retardant outer layer covering the outside of the airbag sections.

[0011] Preferably, the carrying module further includes a folding towing strap, which is stored in the lower part of the back frame body or in the flexible back pad interlayer and can be quickly pulled out from the bottom of the carrying module.

[0012] Preferably, the communication component further includes a communication interface for connecting to an external intercom device and obtaining power, and the communication component does not have an independent battery.

[0013] Preferably, the mask module further includes a flow-guiding and anti-fog structure disposed on the inner side of the mask lens, the flow-guiding and anti-fog structure being used to guide the breathing airflow along the inner surface of the mask lens.

[0014] Preferably, the two-stage pressure reducer includes a primary pressure reducing unit and a secondary pressure reducing unit. The primary pressure reducing unit is used to reduce the pressure of the high-pressure gas in the gas cylinder to an intermediate pressure, and the secondary pressure reducing unit is used to reduce the intermediate pressure to the output pressure required by the gas supply valve.

[0015] Preferably, the pressure alarm component includes an electronic pressure sensor, a mechanical pressure gauge, and a low-pressure alarm. The electronic pressure sensor is signal-connected to the head-up display component, and the mechanical pressure gauge is positioned in a visible position in front of the chest.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a composite structure consisting of a polymer inner liner, a honeycomb interlayer, and a fiber-reinforced pressure-bearing layer to optimize structural weight and stiffness distribution while ensuring the cylinder's pressure resistance. This improves the utilization rate of the gas storage structure and reduces the overall load. By incorporating a hollow, perforated frame back frame, flexible back padding, and wiring channels, the carrying module achieves weight reduction while maintaining a comfortable fit, stress distribution, and efficient pipework storage, thus enhancing wearing comfort and operational safety. Integrating the bone conduction microphone, air conduction microphone, bone conduction hearing unit, speaker unit, and heads-up display into the face mask module achieves integrated communication and face mask design, reducing external components and improving reliability in complex environments. The inclusion of a dual-stage pressure reducer, gas supply valve, and a pressure alarm component consisting of an electronic pressure sensor, mechanical pressure gauge, and low-pressure alarm improves gas supply stability and redundancy in pressure information acquisition. Embedding high-pressure and medium-pressure pipelines within the wiring channels of the back frame reduces exposed pipelines and lowers the risk of snagging or bumping in fire scenes or confined spaces. By incorporating a deflector and anti-fog structure and a head-up display, the visibility of the face mask is improved, allowing users to directly obtain air pressure and alarm information in low-visibility environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the lightweight intelligent communication air respirator of the present invention; Figure 2 This is a schematic diagram of the polymer inner liner layer in the lightweight intelligent communication air respirator of the present invention; Figure 3 This is a schematic diagram of the back frame body of the lightweight intelligent communication air respirator of the present invention; Figure 4 This is a schematic diagram of the structure of the mask housing in the lightweight intelligent communication air respirator of the present invention; Figure 5 This is a schematic diagram of the two-stage pressure reducer in the lightweight intelligent communication air respirator of the present invention; Figure 6This is a control system architecture diagram of the lightweight intelligent communication air respirator of the present invention.

[0018] In the diagram: 1. Gas cylinder module; 11. Gas cylinder body; 111. Polymer inner liner; 112. Honeycomb interlayer; 113. Fiber-reinforced pressure-bearing layer; 12. Cylinder valve assembly; 121. Main valve body; 122. Rupture disc; 123. Safety relief valve; 2. Backpack module; 21. Backpack frame body; 211. Main load-bearing beam; 212. Transverse reinforcing rib; 213. Weight-reducing perforated section; 22. Mounting base; 23. Shoulder strap assembly; 24. Waist belt assembly; 25. Flexible back pad; 251. Airbag partition; 252. Flame-retardant outer layer; 26. Wiring channel; 27. Folding tow strap; 3. Face mask module; 31. Face... 32. Housing; 33. Face mirror; 34. Air supply interface; 35. Communication component; 36. Bone conduction pickup unit; 37. Air conduction pickup unit; 38. Bone conduction hearing unit; 39. Speaker unit; 30. Communication interface; 31. Head-up display component; 32. Airflow guide and anti-fog structure; 4. Air supply control module; 41. Two-stage pressure reducer; 42. Primary pressure reducing unit; 43. Secondary pressure reducing unit; 44. High-pressure pipeline; 45. Medium-pressure pipeline; 46. Air supply valve; 47. Pressure alarm component; 48. Electronic pressure sensor; 49. Mechanical pressure gauge; 40. Low-pressure alarm. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 Please see Figures 1-6 The present invention provides a lightweight intelligent communication air respirator, comprising: an air cylinder module 1, a backpack module 2, a mask module 3, and an air supply control module 4; the air cylinder module 1 is mounted on the backpack module 2, and the air supply control module 4 is connected to the air cylinder module 1 and the mask module 3 respectively. The gas cylinder module 1 includes a gas cylinder body 11 and a cylinder valve assembly 12 disposed at the end of the gas cylinder body 11. The gas cylinder body 11 includes a polymer inner liner 111, a honeycomb interlayer 112 disposed on the outside of the polymer inner liner 111, and a fiber-reinforced pressure-bearing layer 113 disposed on the outside of the honeycomb interlayer 112. The carrying module 2 includes a back frame body 21, a mounting base 22 for installing the gas cylinder module 1, a shoulder strap assembly 23, a waist belt assembly 24, and a flexible back pad 25 disposed inside the back frame body 21. The back frame body 21 is provided with a wiring groove 26 for accommodating pipelines. The mask module 3 includes a mask housing 31, a mask 32, an air supply interface 33, a communication component 34, and a head-up display component 35. The communication component 34 is embedded in the mask housing 31. The gas supply control module 4 includes a two-stage pressure reducer 41 connected to the cylinder valve assembly 12, a high-pressure pipeline 42 and a medium-pressure pipeline 43 connected to the two-stage pressure reducer 41, a gas supply valve 44 connected to the medium-pressure pipeline 43, and a pressure alarm assembly 45. The high-pressure pipeline 42 and the medium-pressure pipeline 43 are at least partially embedded in the wiring trough 26. The communication component 34 includes a bone conduction pickup unit 341, an air conduction pickup unit 342, a bone conduction hearing unit 343, and a speaker unit 344. The head-up display component 35 is connected to the pressure alarm component 45 to display the gas cylinder pressure and alarm information.

[0021] The honeycomb interlayer 112 is composed of multiple honeycomb units distributed along the circumference and axial direction of the gas cylinder body 11, and the cross-section of the honeycomb unit is a polygonal structure.

[0022] The bottle valve assembly 12 includes a main valve body 121, a rupture disc 122, and a safety relief valve 123, which together form a dual overpressure protection structure.

[0023] The back frame body 21 includes a main load-bearing beam 211 extending longitudinally and a transverse reinforcing rib 212 connecting the main load-bearing beam 211. The non-main load-bearing area of ​​the back frame body 21 is provided with a weight-reducing hollow part 213.

[0024] The flexible back pad 25 includes multiple independent airbag sections 251 and a flame-retardant outer layer 252 covering the outside of the airbag sections 251.

[0025] The carrying module 2 also includes a folding towing strap 27, which is stored in the lower part of the back frame body 21 or in the interlayer of the flexible back pad 25, and can be quickly pulled out from the bottom of the carrying module 2.

[0026] The communication component 34 also includes a communication interface 345, which is used to connect to an external intercom device and obtain power. The communication component 34 does not have an independent battery.

[0027] The mask module 3 also includes a flow-guiding and anti-fog structure 36 disposed inside the mask 32. The flow-guiding and anti-fog structure 36 is used to guide the breathing airflow along the inner surface of the mask 32.

[0028] The two-stage pressure reducer 41 includes a primary pressure reducing unit 411 and a secondary pressure reducing unit 412. The primary pressure reducing unit 411 is used to reduce the pressure of the high-pressure gas in the gas cylinder to an intermediate pressure, and the secondary pressure reducing unit 412 is used to reduce the intermediate pressure to the output pressure required by the gas supply valve 44.

[0029] The pressure alarm component 45 includes an electronic pressure sensor 451, a mechanical pressure gauge 452, and a low-pressure alarm 453. The electronic pressure sensor 451 is connected to the head-up display component 35, and the mechanical pressure gauge 452 is positioned in a visible position in front of the chest.

[0030] During use, the electronic pressure sensor 451 collects the remaining air pressure data in real time and sends the relevant information to the head-up display component 35 for display; the mechanical pressure gauge 452 simultaneously provides redundant readings in front of the chest; when the air pressure is below the threshold, the low-pressure alarm 453 sounds an alarm. The communication component 34 connects to an external intercom device through the communication interface 345. The bone conduction pickup unit 341 and the air conduction pickup unit 342 are used to collect the wearer's voice, and the bone conduction hearing unit 343 and the speaker unit 344 are used for voice output. The airflow guiding and anti-fog structure 36 guides airflow through the inner surface of the mask 32 during breathing, thereby improving the clarity of observation. In case of emergency evacuation or rescue, the foldable rescue strap 27 can be quickly pulled out for towing and rescue.

[0031] Example 2 like Figures 1 to 6 As shown, a lightweight intelligent communication air respirator includes a gas cylinder module 1, a backpack module 2, a mask module 3, and a gas supply control module 4. The gas cylinder module 1 is mounted on the backpack module 2, and the gas supply control module 4 is connected to both the gas cylinder module 1 and the mask module 3, and is used to perform high-pressure gas decompression, delivery, and pressure monitoring.

[0032] This air respirator adopts a modular integrated structure, combining a high air storage structure, a lightweight backpack structure, a communication mask structure, and an air supply control structure to meet the usage requirements in complex working conditions such as fire rescue.

[0033] like Figure 2 As shown, the gas cylinder module 1 includes a gas cylinder body 11 and a cylinder valve assembly 12 disposed at the end of the gas cylinder body 11. The gas cylinder body 11 includes, from the inside out, a polymer inner liner 111, a honeycomb interlayer 112, and a fiber-reinforced pressure-bearing layer 113. The polymer inner liner 111 forms a basic sealed cavity; the honeycomb interlayer 112 is disposed outside the polymer inner liner 111 to improve the structural support performance and local stability of the cylinder body; the fiber-reinforced pressure-bearing layer 113 is disposed outside the honeycomb interlayer 112 to bear the main pressure-bearing function.

[0034] In this embodiment, the honeycomb interlayer 112 is composed of multiple honeycomb units, which can be distributed along the circumference and axial direction of the gas cylinder body 11, and their cross-section can be hexagonal or other polygonal structures. The cylinder valve assembly 12 includes a main valve body 121, a rupture disc 122, and a safety relief valve 123. The rupture disc 122 and the safety relief valve 123 together constitute a dual overpressure protection structure, realizing pressure relief protection in the event of abnormal overpressure.

[0035] Example 3 like Figure 3 and Figure 6 As shown, the carrying module 2 includes a back frame body 21, a mounting base 22, a shoulder strap assembly 23, a waist belt assembly 24, a flexible back pad 25, and a folding rescue strap 27. The mounting base 22 is used to fix the gas cylinder module 1, and the shoulder strap assembly 23 and waist belt assembly 24 are used to stably carry the entire machine on the human body.

[0036] The main body 21 of the back frame is a hollow, perforated frame structure, including longitudinally extending main load-bearing beams 211 and transverse reinforcing ribs 212 connecting the main load-bearing beams 211. Weight-reducing perforated sections 213 are provided in non-load-bearing areas to reduce the weight of the back frame. A flexible back pad 25 is located inside the main body 21. The flexible back pad 25 includes multiple independent airbag sections 251 and a flame-retardant outer layer 252 covering its outer surface, providing close support and stress cushioning for different areas of the back. The main body 21 of the back frame has wiring channels 26, with high-pressure pipes 42 and medium-pressure pipes 43 at least partially embedded within the wiring channels 26 to reduce exposed pipes. A foldable towing strap 27 is stored in the lower part of the main body 21 of the back frame or within the flexible back pad 25, and can be quickly pulled out for towing when needed.

[0037] Example 4 like Figure 4 As shown, the mask module 3 includes a mask housing 31, a mask lens 32, an air supply interface 33, a communication component 34, a heads-up display component 35, and an airflow defogging structure 36. The mask housing 31 forms a sealed wearing space, and the mask lens 32 provides a forward-facing field of view. The air supply interface 33 is connected to the air supply valve 44 of the air supply control module 4.

[0038] The communication component 34 is embedded in the face mask housing 31. The communication component 34 includes a bone conduction pickup unit 341, an air conduction pickup unit 342, a bone conduction hearing unit 343, a speaker unit 344, and a communication interface 345. The bone conduction pickup unit 341 is used to collect the wearer's voice signal transmitted via bone vibration; the air conduction pickup unit 342 is used to collect the voice signal transmitted through the air; the bone conduction hearing unit 343 is used to transmit the received voice to the wearer via bone conduction; and the speaker unit 344 is used for voice playback or near-field amplification. The communication interface 345 is used to connect to external intercom equipment and obtain power, eliminating the need for a separate battery for the communication component 34.

[0039] A head-up display (HUD) component 35 is located at the edge of the field of view of the mask 32 and is used to display cylinder pressure and alarm information. An airflow defogging structure 36 is located on the inside of the mask 32 and is used to guide breathing airflow along the inner surface of the mask 32 to reduce fogging.

[0040] Example 5 like Figure 5 As shown, the gas supply control module 4 includes a two-stage pressure reducer 41, a high-pressure pipeline 42, a medium-pressure pipeline 43, a gas supply valve 44, and a pressure alarm component 45. The two-stage pressure reducer 41 includes a primary pressure reducing unit 411 and a secondary pressure reducing unit 412. The primary pressure reducing unit 411 reduces the high-pressure gas in the cylinder to an intermediate pressure, and the secondary pressure reducing unit 412 further reduces the intermediate pressure to the output pressure required by the gas supply valve 44.

[0041] The air supply valve 44 is connected to the air supply interface 33 of the mask module 3 for stable air supply to the mask module 3. The pressure alarm component 45 includes an electronic pressure sensor 451, a mechanical pressure gauge 452, and a low-pressure alarm 453. The electronic pressure sensor 451 collects the cylinder pressure and transmits it to the head-up display component 35. The mechanical pressure gauge 452 is positioned in a visible position in front of the chest as a redundant display structure. The low-pressure alarm 453 emits an audible, visual, and vibration alarm when the air pressure is lower than a set threshold.

[0042] Based on the above technical solution, the working steps of this solution are summarized as follows: When using this invention, firstly, the gas cylinder module 1 is fixed on the mounting base 22 of the back-carrying module 2, and the cylinder valve assembly 12 is connected to the gas supply control module 4. The wearer carries the entire device on their body using the shoulder strap assembly 23 and waist belt assembly 24, then puts on the mask module 3, and connects the gas supply interface 33 to the gas supply valve 44. After opening the cylinder valve assembly 12, the high-pressure gas in the gas cylinder is reduced in pressure by the two-stage pressure reducer 41, enters the gas supply valve 44 through the medium-pressure pipeline 43, and then enters the mask module 3 for the wearer to breathe.

[0043] All parts not described in this invention are the same as or can be implemented using existing technology. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight intelligent communication air respirator, characterized in that, include: Gas cylinder module (1), backpack module (2), mask module (3) and gas supply control module (4); The gas cylinder module (1) is installed on the backpack module (2), and the gas supply control module (4) is connected to the gas cylinder module (1) and the mask module (3) respectively. The gas cylinder module (1) includes a gas cylinder body (11) and a cylinder valve assembly (12) disposed at the end of the gas cylinder body (11). The gas cylinder body (11) includes a polymer inner liner (111), a honeycomb interlayer (112) disposed on the outside of the polymer inner liner (111), and a fiber-reinforced pressure-bearing layer (113) disposed on the outside of the honeycomb interlayer (112). The carrying module (2) includes a back frame body (21), a mounting base (22) for mounting the gas cylinder module (1), a shoulder strap assembly (23), a waist belt assembly (24), and a flexible back pad (25) disposed inside the back frame body (21). The back frame body (21) is provided with a wiring groove (26) for accommodating pipelines. The mask module (3) includes a mask housing (31), a mask mirror (32), an air supply interface (33), a communication component (34), and a head-up display component (35), wherein the communication component (34) is embedded in the mask housing (31); The gas supply control module (4) includes a two-stage pressure reducer (41) connected to the bottle valve assembly (12), a high-pressure pipeline (42) and a medium-pressure pipeline (43) connected to the two-stage pressure reducer (41), a gas supply valve (44) connected to the medium-pressure pipeline (43), and a pressure alarm assembly (45). The high-pressure pipeline (42) and the medium-pressure pipeline (43) are at least partially embedded in the wiring trough (26). The communication component (34) includes a bone conduction pickup unit (341), an air conduction pickup unit (342), a bone conduction hearing unit (343), and a speaker unit (344). The head-up display component (35) is connected to the pressure alarm component (45) to display the gas cylinder pressure and alarm information.

2. The lightweight intelligent communication air respirator according to claim 1, characterized in that: The honeycomb interlayer (112) is composed of multiple honeycomb units distributed circumferentially and axially along the gas cylinder body (11), and the cross-section of the honeycomb unit is a polygonal structure.

3. The lightweight intelligent communication air respirator according to claim 1, characterized in that: The bottle valve assembly (12) includes a main valve body (121), a rupture disc (122), and a safety relief valve (123), wherein the rupture disc (122) and the safety relief valve (123) constitute a dual overpressure protection structure.

4. A lightweight intelligent communication air respirator according to claim 1, characterized in that: The back frame body (21) includes a main load-bearing beam (211) extending longitudinally and a transverse reinforcing rib (212) connecting the main load-bearing beam (211). The non-main load-bearing area of ​​the back frame body (21) is provided with a weight-reducing hollow part (213).

5. A lightweight intelligent communication air respirator according to claim 1, characterized in that: The flexible back pad (25) includes multiple independent airbag sections (251) and a flame-retardant outer layer (252) covering the outside of the airbag sections (251).

6. A lightweight intelligent communication air respirator according to claim 1, characterized in that: The carrying module (2) also includes a folding towing strap (27), which is stored in the lower part of the back frame body (21) or in the interlayer of the flexible back pad (25) and can be quickly pulled out from the bottom of the carrying module (2).

7. A lightweight intelligent communication air respirator according to claim 1, characterized in that: The communication component (34) also includes a communication interface (345) for connecting to an external intercom device and obtaining power. The communication component (34) does not have an independent battery.

8. A lightweight intelligent communication air respirator according to claim 1, characterized in that: The mask module (3) also includes a flow-guiding and anti-fog structure (36) disposed on the inner side of the mask (32), the flow-guiding and anti-fog structure (36) being used to guide the breathing airflow along the inner surface of the mask (32).

9. A lightweight intelligent communication air respirator according to claim 1, characterized in that: The dual-stage pressure reducer (41) includes a primary pressure reducing unit (411) and a secondary pressure reducing unit (412). The primary pressure reducing unit (411) is used to reduce the pressure of the high-pressure gas in the gas cylinder to an intermediate pressure, and the secondary pressure reducing unit (412) is used to reduce the intermediate pressure to the output pressure required by the gas supply valve (44).

10. A lightweight intelligent communication air respirator according to claim 1, characterized in that: The pressure alarm component (45) includes an electronic pressure sensor (451), a mechanical pressure gauge (452), and a low-pressure alarm (453). The electronic pressure sensor (451) is connected to the head-up display component (35), and the mechanical pressure gauge (452) is positioned in a visible position in front of the chest.

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