Respirator with air pressure warning function

Abstract

The utility model provides a kind of respirator with air pressure warning effect, comprising: respirator body, warning assembly is fixedly installed in respirator body surface one side, and respirator body surface other side is threadedly connected with breathing nozzle.This kind of respirator with air pressure warning effect, by being provided with output interface, warning assembly, breathing nozzle and the like structure, output interface is as gas source connection pivot, ensure that external gas is stably accessed and shunts transmission, provide basis for overall operation;Warning assembly cooperates through each component, real-time monitoring air pressure and with intuitive way feedback state, both through barometer to show specific value, and with the flicker and extinguishing of LED lamp to transfer safety signal;Breathing nozzle then guarantees breathing smooth and stable use, each structure division of labor is clear and linkage cooperation, both satisfy the air supply and breathing demand when diving, can also monitor air pressure and timely warning, greatly improve use safety and operation convenience, adapt to the use demand of complex environment under water.

Description

Technical Field

[0001] This utility model relates to the field of respirator technology, and more specifically, to a respirator with an air pressure warning function. Background Technology

[0002] A respirator is a device that provides breathing gas to a user, primarily used in oxygen-deficient or toxic gas environments (such as diving, firefighting, and industrial rescue) to ensure the user's respiratory safety. Its core function is to store gas through a gas source (such as a gas cylinder), regulate the output pressure through pipelines, valves, and other components, and then supply the user with inhaled gas through interfaces such as a breathing nozzle or mask, while simultaneously exhaling gas to form a complete breathing cycle.

[0003] However, existing respirators have the following problems when in use:

[0004] Existing respirators have relatively limited functionality, often only providing basic breathing support as a short-range tool. They lack the ability to expand their capabilities to adapt to different usage scenarios, making it difficult to meet the flexible needs of complex environments. Barometric pressure monitoring relies heavily on the user actively observing the barometer. In scenarios such as underwater light interference during diving or dense smoke obstruction during firefighting, changes in barometric pressure are easily overlooked due to obstructed vision or operational tension. Warning methods are often not intuitive, with some relying solely on the position of the barometer pointer and lacking proactive reminder functions.

[0005] This invention enables stable air supply and breathing support during diving. By monitoring the air supply pressure in real time, it visually indicates the air pressure status with flashing or extinguishing LED lights. It promptly alerts divers when the air pressure is insufficient, ensuring the safety of the diving process and reducing the risks caused by air pressure problems. Summary of the Invention

[0006] The present invention aims to solve the technical problems mentioned in the background art and provide a respirator with air pressure warning function.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a respirator with air pressure warning function, comprising: a respirator body, a warning component fixedly installed on one side of the surface of the respirator body, and a breathing nozzle threadedly connected to the other side of the surface of the respirator body. The respirator body is cylindrical in shape, and the warning component and the breathing nozzle are both fixedly installed on the surface of the respirator body. The warning component consists of a base, an air pressure gauge, a pneumatic main body, a pressure transmission shaft, an adjustment knob, a battery assembly, an LED light assembly, and a lamp cover.

[0008] A further preferred embodiment: The bottom of the respirator body is fixedly equipped with an output interface, which is a hollow cylinder and can be connected to other breathing and air supply devices.

[0009] A further preferred embodiment: the base is fixedly connected to the respirator body, and the pressure gauge is fixedly installed on the outer side of the base.

[0010] A further preferred embodiment: a pneumatic body is fixedly installed on the upper end of the base, the pneumatic body is hollow inside, and a pressure transmission shaft is embedded inside.

[0011] A further preferred embodiment: an adjustment knob is rotatably connected to the upper end of the pneumatic main body, the adjustment knob is hollow inside, and the battery assembly and LED light assembly are both embedded inside the adjustment knob.

[0012] A further preferred embodiment: the battery assembly is fixedly mounted on the upper end of the pneumatic body and fixedly connected to the pressure transmission shaft, and the LED light assembly is fixedly mounted on the upper end of the battery assembly.

[0013] A further preferred embodiment: a lampshade is fixedly installed on the upper end of the LED lamp assembly, and the lampshade is made of transparent material.

[0014] A further preferred embodiment: the lampshade is located at the middle of the upper end of the adjustment knob and is movably connected to the adjustment knob, with the upper end of the lampshade being higher than the upper end of the adjustment knob.

[0015] A further preferred embodiment: both the left and right ends of the mouthpiece are fixedly installed with bite plates, and a breathing port is opened on the side of the mouthpiece near the respirator body, and the breathing port is connected to the respirator body. Beneficial effects

[0016] 1. By incorporating a pressure gauge, a pneumatic main body, and a pressure transmission shaft, the pneumatic main body provides a closed and stable space for pressure transmission, ensuring that gas pressure accurately acts on the pressure transmission shaft. The pressure transmission shaft converts pressure changes into mechanical displacement, achieving effective transmission of pressure signals. The pressure gauge then converts the mechanical displacement into a clear pressure reading. The three components work together to allow users to monitor the supply pressure status in real time. This structural design makes pressure monitoring more accurate, avoiding safety hazards caused by pressure perception errors. The mechanical linkage is stable and reliable, unaffected by the complex underwater environment. At the same time, pressure changes are directly fed back through physical transmission, with a rapid response, providing accurate basis for subsequent pressure adjustment and warning triggering, thus improving the safety performance and reliability of the breathing apparatus.

[0017] 2. The adjustable knob allows for convenient adjustment of the air supply pressure. Its rotating connection with the pneumatic main body allows users to adjust the air supply pressure in real time according to diving depth and breathing needs, ensuring breathing comfort and safety. The hollow design inside the knob cleverly accommodates the battery and LED light components, saving space and making the structure compact. The ring contact design ensures stable circuit continuity during adjustment, without affecting the warning function. It also takes into account the coordinated work of pressure adjustment and air pressure monitoring, improving the ease of operation and the overall practicality of the equipment.

[0018] 3. Equipped with an LED light component, when the air pressure is within a safe range, the LED light component flashes at a fixed frequency through a built-in flashing module. The light is diffused through a transparent lampshade, making it easy for divers to detect even in complex underwater lighting environments and confirm that the current air pressure is normal. When the air pressure falls below the safe threshold, the LED light component automatically turns off, conveying a warning signal through a significant change in light status. This visual cue eliminates the need for divers to keep their eyes on the barometer, reducing operational distractions. Furthermore, the light warning is not limited by underwater sound propagation and provides a direct response. At the same time, its linkage design with the battery component and pressure transmission structure ensures precise synchronization between the warning status and air pressure changes, effectively improving the timeliness and reliability of diving safety reminders.

[0019] 4. In summary, this breathing apparatus with air pressure warning function, through its structure including an output interface, warning components, and a breathing nozzle, ensures stable access and distribution of external gas, providing a foundation for overall operation. The warning components, through the coordinated operation of all parts, monitor air pressure in real time and provide intuitive feedback, displaying specific values ​​through a pressure gauge and transmitting safety signals through the flashing and extinguishing of LED lights. The breathing nozzle, with its adaptable structure, ensures smooth breathing and stable use. The clear division of labor and coordinated operation of each component not only meets the air supply and breathing needs during diving but also accurately monitors air pressure and provides timely warnings, significantly improving safety and ease of operation, and adapting to the needs of complex underwater environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the overall planar exploded structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the breathing nozzle structure of this utility model.

[0023] Figure 1-3In the middle: 1. Respirator body; 101. Output interface; 2. Warning component; 201. Base; 202. Pressure gauge; 203. Pneumatic main body; 204. Pressure transmission shaft; 205. Adjustment knob; 206. Battery assembly; 207. LED light assembly; 208. Lamp cover; 3. Breathing mouthpiece; 301. Engagement plate; 302. Breathing port. Detailed Implementation

[0024] The following will refer to the appendix in the embodiments of this utility model. Figures 1-3 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0025] Please see Figure 1-3In this embodiment of the present invention, a respirator with an air pressure warning function includes: a respirator body 1, a warning component 2 fixedly installed on one side of the surface of the respirator body 1, and a breathing nozzle 3 threadedly connected to the other side of the surface of the respirator body 1. The respirator body 1 is cylindrical. The warning component 2 and the breathing nozzle 3 are both fixedly installed on the surface of the respirator body 1. The warning component 2 consists of a base 201, a pressure gauge 202, a pneumatic main body 203, a pressure transmission shaft 204, an adjustment knob 205, a battery assembly 206, an LED light assembly 207, and a lamp cover 208. An output interface 101 is fixedly installed at the bottom of the respirator body 1. The output interface 101 is a hollow cylinder that can be connected to other breathing and air supply devices. The base 201... The pressure gauge 202 is fixedly installed on the outer side of the base 201 and fixedly connected to the respirator body 1. The pneumatic body 203 is fixedly installed on the upper end of the base 201. The pneumatic body 203 is hollow inside and a pressure transmission shaft 204 is embedded inside. The mouthpiece 3 has a biting plate 301 fixedly installed on both the left and right ends. The mouthpiece 3 has a breathing port 302 on the side near the respirator body 1. The breathing port 302 is connected to the respirator body 1 and is connected to an external air supply device (such as a compressed air cylinder, oxygen tank, etc.) through the output interface 101 at the bottom of the respirator body 1. The gas enters the air passage inside the respirator body 1 through the output interface 101 to complete the initial air supply. The gas (or the gas with the appropriate pressure) enters along the air passage inside the respirator body 1. The gas inside the respirator body 1 flows to the mouthpiece 3 (for breathing) and another portion flows to the pneumatic body 203 of the warning component 2 (for air pressure monitoring and adjustment). The gas entering the pneumatic body 203 generates a thrust on the internal pressure drive shaft 204. The higher the gas pressure, the stronger the thrust. The pressure drive shaft 204 moves accordingly based on the pressure. This displacement is transmitted to the pressure gauge 202 via mechanical linkage. The pressure gauge 202 displays the real-time air pressure value via a pointer, allowing the user to visually observe whether the current supply pressure is within a safe range. The user adjusts the supply pressure using the adjustment knob 205. The stabilized pressure after adjustment is displayed in real-time on the pressure gauge 202 (for easy confirmation of adjustment). On the one hand, the gas is transmitted along the air path to the mouthpiece 3. The adjusted pressure gas enters the mouthpiece 3 through the internal channel of the respirator body 1 and flows out from the breathing port 302 (connected to the respirator body 1) on the inside of the mouthpiece 3. The user puts the mouthpiece 3 into his mouth and fixes the position by biting the bite plate 301 (to prevent it from falling off), and directly inhales the gas flowing out from the breathing port 302. The exhaled gas is discharged through the mouthpiece 3, completing one breathing cycle. During normal use, the air pressure is in a normal state. The end of the pressure transmission shaft 204 touches the "safety pressure contact switch", so that the switch is in the "closed" state. The closed contact switch connects the battery assembly 206 and the LED light assembly 207 in series to form a circuit.The flashing control module (built-in pulse circuit) starts working, intermittently outputting current at a fixed frequency to drive the LED light assembly 207 to "flash". The lamp cover 208 diffuses the light for the diver's observation. As the dive time increases, the gas in the cylinder decreases and the gas supply pressure gradually drops. When it falls below the safety threshold, the pressure drive shaft 204 retracts due to insufficient thrust and separates from the "safety pressure contact switch" at its end. The switch automatically "disconnects". The disconnected switch interrupts the circuit, and the battery assembly 206 can no longer supply power to the LED light assembly 207. The flashing control module stops working, and the LED light goes out completely, reminding the diver that "the air pressure is low" and urging them to surface as soon as possible.

[0026] In this embodiment of the invention, an adjustment knob 205 is rotatably connected to the upper end of the pneumatic body 203. The adjustment knob 205 is hollow inside. The battery assembly 206 and the LED light assembly 207 are both embedded inside the adjustment knob 205. The battery assembly 206 is fixedly installed on the upper end of the pneumatic body 203 and is fixedly connected to the pressure transmission shaft 204. The LED light assembly 207 is fixedly installed on the upper end of the battery assembly 206. A lampshade 208 is fixedly installed on the upper end of the LED light assembly 207. The lampshade 208 is made of transparent material and is located in the middle of the upper end of the adjustment knob 205. It is movably connected to the adjustment knob 205. The upper end of the lampshade 208 is higher than the upper end of the adjustment knob 205. The adjustment knob 205 is hollow and fits on the upper end of the pneumatic body 203 (rotatable to adjust pressure). The battery assembly 206 (fixed on the upper end of the pneumatic body 203 and connected to the pressure transmission shaft) is nested inside it. The battery assembly 206 and LED light assembly 207 (fixed above the battery assembly) move synchronously with the pneumatic body 203 and pressure transmission shaft 204 (such as extension and contraction when pressure changes), but do not rotate with the rotation of adjustment knob 205 (to avoid wire tangling). The transparent lampshade 208 is fixed on the upper end of LED light assembly 207 and extends from the top opening of adjustment knob 205 (higher than the knob surface), ensuring that the light passes through without obstruction, and because of the "movable connection" design, it does not affect the rotation operation of adjustment knob. The circuit connection between battery assembly 206 and LED light assembly 207 is achieved through the "ring contact" between pressure transmission shaft 204 and the inner wall of adjustment knob 205 (replacing the traditional contact switch and adapting to the rotatable characteristics of knob). The top of pressure transmission shaft 204 (the part connected to battery assembly 206) is provided with conductive contact A.The inner wall of the adjustment knob 205, corresponding to the "safe air pressure threshold," has a ring of conductive contacts B (which maintain their continuous ring shape as the knob rotates, ensuring that rotation does not affect contact). When the air supply pressure is greater than or equal to the safe threshold, the pressure drive shaft 204 extends upward under the force of the gas, causing the battery assembly 206 to move upward synchronously. This makes the conductive contact A at the top of the drive shaft come into close contact with the ring contact B on the inner wall of the adjustment knob 205, at which point the circuit is completed (battery assembly → contact A → contact B → LED light assembly). Because contact B is ring-shaped, even if the adjustment knob 205 is rotated to adjust the air supply pressure, the contact state between contact A and B remains stable (not affecting circuit continuity). After the circuit is completed, the flashing module built into the LED light assembly 207 (integrated within the light group) is activated, driving... The LED flashes at a fixed frequency (e.g., 1 time / second), and the light shines through the protruding transparent lampshade 208. Because the lampshade is higher than the adjustment knob 205, it is more easily observed by divers in the underwater environment (it does not obstruct the view even when the hand is holding the knob for adjustment). When the air supply pressure is less than the safety threshold, the pressure drive shaft 204 retracts downward due to insufficient thrust, causing the battery assembly 206 to move downward, separating the conductive contact A from the annular contact B, and automatically cutting off the circuit. This process is not affected by the rotation of the adjustment knob 205 (regardless of the knob's adjustment position, the contacts will separate if the air pressure is insufficient). After the circuit is cut off, the LED light assembly 207 stops working, and the lampshade 208 no longer emits light. Once the diver notices that the light is off, they can clearly determine that "the air pressure is lower than the safe value" and must immediately stop diving and surface.

[0027] Working principle: An external air supply device (such as a compressed air cylinder or oxygen tank) is connected through the output port 101 (hollow cylinder) at the bottom of the respirator body 1. Gas enters the air passage inside the respirator body 1 through the output port 101, completing the initial air supply. The gas is then divided into two paths along the internal passage of the respirator body 1: one path flows to the mouthpiece 3 to provide gas for breathing; the other path flows to the pneumatic body 203 of the warning component 2 for air pressure monitoring and regulation. The gas entering the pneumatic body 203 generates thrust on the internal pressure transmission shaft 204. The greater the gas pressure, the stronger the thrust. The pressure transmission shaft 204 generates a corresponding displacement according to the pressure, which is transmitted to the pressure gauge 202 via mechanical linkage. 202 displays the real-time air pressure value via a pointer, allowing users to intuitively observe whether the current air supply pressure is within a safe range. Users adjust the air supply pressure by rotating the adjustment knob 205 at the top of the pneumatic main body 203. The adjusted stable pressure is displayed in real time on the air pressure gauge 202, making it easy to confirm the adjustment effect. On the other hand, it continues to be transmitted to the mouthpiece 3 along the air path. The adjusted and adapted pressure gas enters the mouthpiece 3 through the internal channel of the respirator body 1 and flows out from the breathing port 302 connected to the respirator body 1 on the inside of the mouthpiece 3. The user puts the mouthpiece 3 into their mouth and fixes the position by biting the bite plates 301 on the left and right ends inside (to prevent it from falling off), and directly inhales the gas flowing out from the breathing port 302.Exhaled air is expelled through the breathing nozzle 3, completing one breathing cycle. When the air supply pressure is greater than or equal to the safety threshold, the pressure drive shaft 204 extends upward under the action of gas thrust, driving the battery assembly 206, which is fixed to the upper end of the pneumatic body 203 and connected to it, to move upward synchronously. This causes the conductive contact A at the top of the pressure drive shaft 204 to make close contact with the annular conductive contact B on the inner wall of the adjustment knob 205 corresponding to the "safe air pressure threshold" position. At this time, the circuit is connected (battery assembly → contact A → contact B → LED light assembly). Since contact B is annular, even if the adjustment knob 205 is rotated to adjust the air supply pressure, the contact state between contact A and B remains stable. After the circuit is connected, the flashing module built into the LED light assembly 207 is activated, driving the LED to flash at a fixed frequency (e.g., 1 time / second). The light is transmitted through the transparent lampshade 208, which is fixed to the upper end of the LED light assembly 207, extends from the top opening of the adjustment knob 205, and is higher than its surface. In an underwater environment, this system facilitates observation by divers. As the dive time increases, the gas in the cylinder decreases, and the supply pressure gradually drops. When the supply pressure falls below the safety threshold, the pressure drive shaft 204 retracts downward due to insufficient thrust, causing the battery assembly 206 to move downward. This separates the conductive contact A from the annular contact B, automatically cutting off the circuit. This process is unaffected by the rotation of the adjustment knob 205. After the circuit is cut off, the LED light assembly 207 stops working, and the lamp cover 208 stops illuminating. Upon noticing the light is off, the diver can clearly determine that "the air pressure is below the safe value" and must immediately stop the dive and surface. Throughout the process, the battery assembly 206 and the LED light assembly 207 move synchronously with the pneumatic body 203 and the pressure drive shaft 204 (such as extension and contraction during pressure changes), but do not rotate with the rotation of the adjustment knob 205, avoiding wire entanglement. The lamp cover 208 is movably connected to the adjustment knob 205 and does not affect the rotation of the adjustment knob.

Claims

1. A respirator with a barometric pressure warning function, comprising: The respirator body (1) has a warning component (2) fixedly installed on one side of the surface of the respirator body (1) and a breathing nozzle (3) threadedly connected to the other side of the surface of the respirator body (1). The respirator body (1) is cylindrical in shape, and the warning component (2) and the breathing nozzle (3) are both fixedly installed on the surface of the respirator body (1). The warning component (2) is composed of a base (201), a pressure gauge (202), a pneumatic body (203), a pressure transmission shaft (204), an adjustment knob (205), a battery assembly (206), an LED light assembly (207), and a lamp cover (208).

2. A respirator with air pressure warning function according to claim 1, characterized in that: The bottom of the respirator body (1) is fixedly equipped with an output interface (101), which is a hollow column and can be connected to other breathing and air supply devices.

3. A respirator with air pressure warning function according to claim 1, characterized in that: The base (201) is fixedly connected to the respirator body (1), and the pressure gauge (202) is fixedly installed on the outer side of the base (201).

4. A respirator with air pressure warning function according to claim 1, characterized in that: The upper end of the base (201) is fixedly installed with a pneumatic body (203). The pneumatic body (203) is hollow inside and a pressure transmission shaft (204) is embedded inside.

5. A respirator with air pressure warning function according to claim 4, characterized in that: The upper end of the pneumatic body (203) is rotatably connected to an adjustment knob (205). The adjustment knob (205) is hollow inside. The battery assembly (206) and the LED light assembly (207) are both embedded inside the adjustment knob (205).

6. A respirator with air pressure warning function according to claim 5, characterized in that: The battery assembly (206) is fixedly installed on the upper end of the pneumatic body (203) and is fixedly connected to the pressure transmission shaft (204). The LED light assembly (207) is fixedly installed on the upper end of the battery assembly (206).

7. A respirator with air pressure warning function according to claim 6, characterized in that: The LED light assembly (207) is fixedly mounted with a lampshade (208), which is made of transparent material.

8. A respirator with air pressure warning function according to claim 7, characterized in that: The lampshade (208) is located at the middle of the upper end of the adjustment knob (205) and is movably connected to the adjustment knob (205). The upper end of the lampshade (208) is higher than the upper end of the adjustment knob (205).

9. A respirator with air pressure warning function according to claim 1, characterized in that: Both the left and right ends of the breathing nozzle (3) are fixedly installed with bite plates (301). A breathing port (302) is opened on the side of the breathing nozzle (3) close to the respirator body (1). The breathing port (302) is connected to the respirator body (1).

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