High altitude breathing device

Abstract

The air pressure on the plateau is too low, which makes the body prone to altitude sickness and other diseases. The traditional pressurized inhalation scheme cannot solve the problem of sudden drop in air pressure caused by inhalation, or it cannot effectively transfer the pressurized gas. The plateau assisted breathing device of the present invention uses hydraulic pressure and gravity to prevent the gas in the cavity from experiencing large fluctuations in air pressure during inhalation, and can reversely increase the air pressure in the cavity when the cavity releases gas to the outside as needed, and reversely decrease the air pressure in the cavity when the gas is added to the cavity, which can increase the cavity pressure when the body inhales and reduce the cavity pressure when the body exhales. The specific plateau assisted breathing device mainly combines an air storage device, a pressure storage device and a traditional pressurized breathing device, and further improves the original device, so that the plateau assisted breathing device can both inhale and exhale, and can also keep the air pressure difference between the body and the outside at a relatively low level. The present invention has the advantages of simple structure, low cost of use and small side effects, and will be a milestone invention in the history of prevention and treatment of altitude sickness.

Description

Technical Field

[0001] The invention relates to an auxiliary breathing device, in particular to a plateau auxiliary breathing device suitable for plateau low-pressure areas. Background Art

[0002] In plateau areas, the proportion of oxygen and nitrogen in the air is similar to that in plains, but the oxygen partial pressure is much lower than that in plains, which leads to diseases such as altitude sickness. In 2006, Professor Luo Erping and others proposed the "Portable Plateau Breathing Oxygen Enhancement Device and Its Application" (hereinafter referred to as the Breathing Oxygen Enhancement Device). When the plateau gas is pressurized and compressed to normal pressure gas, the pressurized gas is theoretically the same as the plain gas, and then the pressurized inhalation method is used to meet the body's oxygen inhalation needs. However, how the breathing device transfers the compressed gas to the body is a technical issue ignored in the original authorized patent. The expansion and inhalation of the lungs is considered to be "inhaled" by the body under normal pressure; the normal pressure gas provided by the breathing oxygen enhancement device seems to be taken for granted that the body can inhale it. However, the reality is not the case. If there is 1 liter of normal pressure gas in the breathing oxygen enhancement device at an altitude of 3,600 meters (the air pressure is about 0.7 standard atmospheric pressure), and the body inhales 0.5 liters at a time. Then the equivalent of 1.0 liters of normal pressure gas has expanded. If it expands to 1.5 liters, the air pressure of the gas in the lungs is less than 0.7 standard atmospheric pressure. The difficulty in transferring the air pressure of the pressurized gas is relatively stable, which is the main reason why the respiratory oxygen enrichment device is difficult to achieve the ideal effect. How to solve this problem, the pressure accumulator (patent application number 2023100788004) and the gas reservoir (2023105945622) can solve the problem of steady-state transfer of gas. Although both inventions mention that they can solve altitude sickness, they are not limited to solving altitude sickness. The above two inventions do not specifically explain how to use pressure accumulators and gas reservoirs to overcome altitude sickness. The present invention is a derivative invention that uses the technical solutions displayed in the above-mentioned pressure accumulators and gas reservoirs to apply, demonstrating its value in the specific technical field of solving altitude sickness. Summary of the invention

[0003] The concept of the present invention is to stand from the perspective of the breathing oxygen enrichment device, how to achieve the change of gas volume while the air pressure is relatively stable, or further, whether the air pressure in the cavity can rise during inhalation and drop during exhalation. The present invention stabilizes the air pressure by stabilizing the pressure. The specific technical path is mainly to form a plateau auxiliary breathing device formed by gravity and hydraulic action alone or in combination to solve the problem of altitude sickness. Compared with the prior art, the present invention has the advantages of simple device, low cost of use, and few side effects.

[0004] The structure of the first plateau assisted breathing device includes a shell filled with liquid (the liquid can be water, liquid alloy, etc.), and an inhalation cavity and an exhalation cavity are arranged inside the shell. When the cavity contains gas and the cavity is immersed in liquid, the gas is squeezed by the surrounding liquid, and the gas pressure in the cavity is controlled by adjusting the depth of the liquid in which the cavity is located. The cavity can be a rubber balloon fixed deep in the liquid, or it can be designed as an integrated design with the shell, like an inverted water cup, etc. As an inhalation cavity, its air cavity volume should be large. If a single inhalation is 0.5 liters, the air cavity volume should preferably have a certain margin and be greater than 0.5 liters (unless the air compressor has a large air output, the cavity volume can be less than the single inhalation gas volume). The inhalation cavity is located below the exhalation cavity, and the air pressure in the inhalation cavity is slightly greater than that in the exhalation cavity. The following considerations are made: inhalation will reduce the liquid level to a certain extent and increase the gas-liquid interface, so inhalation will slightly reduce the air pressure. And the continuous inflation behavior will cause the inhalation cavity pressure to rise back to the state before inhalation. If you exhale into the inhalation cavity, the body can inhale and exhale simultaneously in the inhalation cavity if the air pressure difference is not large, but this is relatively physically demanding. Placing the exhalation cavity above the inhalation cavity is considered to improve the low burden of exhalation. However, if you exhale directly into the environment, the air pressure in the mask will easily drop sharply and the air pressure difference will be too large. There is also air pressure in the human body, and a large pressure difference between the inside and outside of the body will have certain side effects on sensitive parts such as the ears. The above is the structure of the air reservoir. The air compressor is connected to the inhalation cavity through a ventilation pipe, and the air compressor is turned on to transport gas into the inhalation cavity. The purpose of using a compressor here is to transport the gas to the inhalation cavity with a higher air pressure relative to the ambient pressure. The air pressure in the cavity does not depend on the air compressor, but on the surrounding hydraulic pressure. The mask is connected to the inhalation cavity and the exhalation cavity respectively through ventilation tubes. When the automatic controller detects the termination of the inhalation action (including the detection of the start of the exhalation action), the ventilation channel between the mask and the exhalation cavity is opened (and the ventilation tube connected to the inhalation cavity is closed at the same time). At this time, the inhalation cavity is an enclosed space relatively isolated from the environment, and the air compressor transports gas into the inhalation cavity space to prepare for the next inhalation. When the automatic controller detects the termination of the exhalation action (including the detection of the start of the inhalation action), the ventilation channel between the mask and the inhalation cavity is opened. At this time, the exhalation cavity is a relatively independent gas space. In order to prevent liquid backflow, when in use, the shell can be placed in a relatively low position and the wearer can be placed in a relatively high position; or a check valve can be added to prevent liquid backflow equipment.

[0005] The structure of the second plateau auxiliary breathing device includes a shell filled with liquid, and a breathing cavity including a baffle is provided in the shell. As the amount of gas in the cavity increases, the cavity floats up under the regulation of the baffle to reduce the air pressure value in the cavity, and as the amount of gas in the cavity decreases, the cavity sinks under the regulation of the baffle to increase the air pressure value in the cavity. The above is a pressure accumulator structure. How the baffle adjusts the air pressure in the cavity has been described in detail in the prior art and will not be repeated here. The breathing cavity preferably adopts an inverted "U" structure. When there is too much gas, it floats down and overflows the cavity to the liquid surface and is released. The air compressor is connected to the breathing cavity through a ventilator, and the mask is connected to the breathing cavity through a ventilator. When the gas in the cavity decreases, it can be regarded as inhalation and the air pressure increases; when the gas in the cavity increases, it can be regarded as the air compressor supplying air to prepare for the next inhalation. At the same time, exhalation will occur during this period, the air pressure decreases, and it is also convenient for exhalation. In this way, the inhaled air pressure is slightly higher and the exhaled air pressure is slightly lower, so that the body breathes with low burden (less physical effort is consumed to complete breathing). Compared with the first type of plateau auxiliary breathing device, the pressure accumulator mechanism of this device is more complex than the air accumulator structure and is equipped with a barrier device. However, in comparison, the cost of the automatic controller is higher than the cost of the barrier. Therefore, in the pursuit of low-burden breathing, this structure has a greater cost advantage.

[0006] The structure of the third type of plateau auxiliary breathing device includes a shell with a moving slide rail, and the moving slide rail is provided with a baffle that can move up and down. The baffle and the moving slide rail can be closely connected through a gear structure, so that the friction between the baffle and the moving slide rail can be reduced when the baffle and the moving slide rail move, and a relatively closed function can be achieved when it is necessary to maintain a closed state (when the moving slide rail passes through the entire baffle, it is necessary to consider the relative contact and sealing between the slide rail and the baffle). A soft diaphragm is provided between the baffle and the shell, and the diaphragm has a small elasticity. The diaphragm presents an inverted "U"-shaped structure between the baffle and the shell. The baffle and the shell below the diaphragm form a closed breathing cavity, and the air pressure in the breathing cavity is jointly controlled by the selection of the gravity size of the baffle and the size of the shell cross section. When the gravity of the baffle is determined, the cross section above the shell is larger than the cross section below the shell, so that the more gas in the breathing cavity, the lower the air pressure, and the less gas, the greater the air pressure. An exhaust port is provided above the moving slide rail. When the barrier moves to the exhaust port, the exhaust port destroys the airtightness of the gas space below to discharge gas to the outside. The air compressor is connected to the breathing cavity through a ventilator, and the mask is connected to the breathing cavity through a ventilator. The shell in contact with the diaphragm can be provided with many small holes so that there will be no gas bulge between the shell and the diaphragm. Compared with the first and second plateau auxiliary breathing devices, this device does not rely on the depth of the liquid, and the device can be more compact, thus being more convenient to carry.

[0007] As a further improvement, the third gravity pressure control technology is combined with the first or second plateau assisted breathing device. Based on the complete use of hydraulic pressure to control the air pressure, when the liquid uses commonly used water as the medium, a pressure difference of 1 standard atmosphere requires a liquid height of 10.33 meters. 0.3 standard atmospheres also require a liquid depth of about 3 meters. The simple use of gravity to control the air pressure is not as flexible as hydraulics in improving the low burden of the respiratory body, especially when the device is used by multiple people, separating the inhalation cavity and the exhalation cavity is a more preferred or necessary option. With the superposition of the two devices, the required hydraulic height can be effectively reduced, maintaining the flexibility of the cavity design. The specific structure is as follows: a moving slide rail is provided above the shell, a baffle that can move up and down is provided on the moving slide rail, a soft diaphragm is provided between the baffle and the shell, a closed gas space is formed between the baffle, the bottom of the diaphragm and the top of the liquid, an exhaust port is provided above the moving slide rail, when the baffle moves upward to the exhaust port, the closed gas space below the diaphragm and above the liquid between the baffle and the moving slide rail is connected to the outside due to the appearance of the exhaust port, and part of the gas (the gas above the liquid) is discharged to the outside. After the gas is discharged, due to the reduction of internal gas, the baffle cannot be supported in a high position, and the baffle will drop again under the action of gravity and stop exhausting. Under this system, the air compressor inputs gas and the exhaust port discharges gas, so as to realize the circulation of gas in the breathing device and the outside world and ensure the freshness of the breathing gas.

[0008] As another improvement, based on the large pressure difference between the body breathing ambient gas (such as ambient gas at 0.7 standard atmospheric pressure) and breathing set pressure gas (such as 0.9 standard atmospheric pressure), the human body needs a pressure transition from breathing ambient gas to set gas. Therefore, a lifting device can be added to the first and second plateau assisted breathing devices that use hydraulic depth to control air pressure, and the cavity (including the inhalation cavity, the exhalation cavity and the breathing cavity) is adjusted in depth in the liquid through the lifting device. When starting to use, the cavity slowly enters the liquid depth, so that the body (the body includes humans and other living things) slowly adapts to the pressure difference change, so that the pressure difference between the inside and outside of the body is always kept within an acceptable range; when the use is terminated, the cavity slowly rises to reduce the liquid depth, and the body also adapts to the external environment. As an equivalent alternative, increasing or decreasing the amount of liquid in some structures can also adjust the relative depth of the cavity.

[0009] As another improvement, in the first plateau assisted breathing device, when the ventilation tube connected to the exhalation cavity keeps the port facing downward in the liquid, the exhalation cavity can be cancelled. The reason why the ventilation tube keeps the port facing downward is that the density of the gas is relatively small. When the port is too low, the excess gas will be discharged downward only when the gas in the ventilation tube increases; if the port is facing upward, it is easy to cause the gas in the mask to float up and discharge by itself, and the pressure will be out of control. When the ventilation tube used for exhalation is cancelled, the automatic controller is cancelled (the function of the automatic controller disappears). The structure at this time is that the inhalation cavity is used for exhalation while also being used for inhalation, and becomes a breathing cavity. Under this structure, it is the relatively simplest plateau assisted breathing device, with the advantages of high reliability and cost, but it will relatively increase the exhalation resistance and the body's breathing energy consumption to a certain extent.

[0010] As another improvement, in the second plateau assisted breathing device, when the partition adopts a lightweight floating block, a flexible rope is used to connect the partition and the breathing cavity, and the cavity depth is adjusted by adjusting the length of the flexible rope between the partition and the breathing cavity, thereby adjusting the air pressure value in the cavity. When there is no gas, the combined density of the partition and the breathing cavity is greater than or equal to that of the liquid. The partition adopts a floating block, and the density of the partition is less than that of the liquid, which is equivalent to that of the density of the breathing cavity is greater than that of the liquid. The details are explained in the prior art "Pressure Accumulator and Air Pressure Regulator" and will not be repeated here. The flexible rope can not only play the role of pulling up the breathing cavity by the partition, but also adjust the depth of the breathing cavity in the liquid by adjusting the length of the flexible rope between the two (the function is the same as the lifting device). In order to ensure the effectiveness of the breathing cavity, when the breathing cavity is filled with gas, the combined density of the breathing cavity (including the internal gas) cannot be less than the density of the liquid.

[0011] As a further improvement, in a plateau assisted breathing device with an exhaust port, the exhaust port can be used as an exhaust valve, and an air pump can be added to the cavity to replace the exhaust port for exhaust function. At this time, an exhaust port can be optionally provided. When an exhaust port is selected, the exhaust port can be used as a pressure relief valve to prevent excessive air pressure from getting out of control, as a safety device. The mass or gravity of the partition can be adjusted by adding or removing counterweights. In a device that controls air pressure stability by gravity, the heavier the partition, the greater the balanced air pressure; the lighter the partition, the smaller the balanced air pressure. By adding or removing counterweights to adjust the air pressure difference with the environment to adapt to different altitudes, the internal air pressure can also be increased or decreased according to the needs of the body.

[0012] As another improvement, in the plateau assisted breathing device that combines gravity and hydraulic action, the amount of gas between the diaphragm and the liquid is fixed, and the gas in the cavity is discharged to the outside through a vacuum pump. This improvement allows the gas reservoir to have the same air pressure control flexibility as the pressure reservoir, and can achieve new functions such as increasing or keeping the air pressure constant when the gas decreases, and decreasing or keeping the air pressure constant when the gas increases. The specific principle is that when the gravity device is under action, the liquid below is not compressible, and the gas above the liquid and inside the liquid are equivalent gases to the gravity device. The gas volume does not change when it is transferred from the inside to the top (ignoring the slight expansion of the volume caused by the slight decrease in gas pressure). However, this has an effect on the structure of the hydraulically acted gas reservoir, which will cause the gas-liquid interface to rise and the air pressure in the cavity to increase. If the gas in the cavity is no longer discharged to the outside through the exhaust port above the liquid surface, and the amount of enclosed gas above the liquid can remain relatively fixed (slight changes can be adjusted and restored separately), the change in the amount of gas in the liquid will act equivalently on the hydraulic control device and the gravity device. The increase of gas will cause the gravity barrier to rise. If the shell cross-section of the gravity device increases, the equilibrium air pressure will decrease when the mass of the barrier remains unchanged. Although the increase of gas thickness in the gas storage device will cause the gas-liquid interface to drop, after being offset by the pressure drop on the liquid surface, the increase of gas can cause the air pressure to rise, remain unchanged or drop. That is, when the gas storage device is combined with the gravity device, the device can reduce the height requirement of the device and increase the flexibility of gas pressure. When breathing, the breathing cavity can be selected to have a cavity volume of, for example, 2 liters or 3 liters. When one person breathes, the amount of gas will generally only increase or decrease by less than 1.0 liter. As long as the cavity is larger than the breathing volume, the cavity air compressor can increase the gas and the vacuum pump can exhaust the gas independently of breathing. The amount of gas increased and exhausted is the same (in terms of gas volume, the pressure change needs to be converted into the gas volume change and the water vapor in the exhaled gas needs to be considered, that is, the same exhaust and increase does not mean the same gas volume, but the gas in the air cavity can be stabilized within a certain range). At this time, the cavity is no longer directly exhausted through the liquid, and the cavity can be sealed. For example, a soft rubber membrane consistent with the inner surface of the cavity is provided at the bottom of the inverted "U" rigid cavity. The membrane only serves to isolate the direct contact between gas and liquid, and does not affect the squeezing effect of the liquid on the gas. The gas pressure in the cavity will not change before and after the membrane is installed.

[0013] As another improvement, the mask adopts a helmet shape to physically isolate the external gas of the eyes, ears, nose and mouth from the ambient gas, and an emergency ventilation valve is provided on the mask. The helmet shape is convenient for protecting fragile organs such as eyes and ears, so that the pressure difference inside and outside the eyes and ears can be reduced as much as possible. Under the helmet shape, the pressure difference between the front and back can be offset. There is a possibility that the pressure difference in the neck is difficult to eliminate. At this time, the top of the head corresponds to the neck, so that the helmet and the top of the head can be in relatively closed contact. At the same time, a number of small holes are opened on the top of the head to keep the air pressure on the top of the head the same as the external air pressure, forming only a circular symmetrical closed gas isolation space on the head. Considering that the relative gas space in the mask is closed, there is a possibility of suffocation when the device fails, so an emergency ventilation valve is provided. When there is a risk of suffocation, the emergency ventilation valve is automatically opened by installing a control system or the body opens the emergency ventilation valve autonomously to breathe the ambient gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a plateau auxiliary breathing device designed using an air storage device according to the present invention.

[0015] Figure 2 It is a schematic diagram of a plateau auxiliary breathing device designed by combining an air storage structure with a gravity device according to the present invention.

[0016] Figure 3 It is a schematic diagram of a plateau auxiliary breathing device designed using a pressure accumulator according to the present invention.

[0017] Figure 4 It is a schematic diagram of a plateau auxiliary breathing device designed by combining a pressure accumulator structure with a gravity device according to the present invention. DETAILED DESCRIPTION

[0018] Combination Figure 1 An implementation of the plateau auxiliary breathing device designed with an air storage device of the present invention is described in detail.

[0019] The plateau auxiliary breathing device includes a shell 2 filled with liquid 1, an inverted "U"-shaped rigid cavity immersed in the liquid 1 - an inhalation cavity 3 and an exhalation cavity 4. The exhalation cavity 4 is located above the inhalation cavity 3 and both cavities are fixed at the lifting device 14. The depth of the cavity in the liquid 1 is controlled by adjusting the lifting device 14. The inhalation cavity 3 is connected to the air compressor 6 through the ventilation pipe 5, and the air compressor 6 supplies air to the inhalation cavity 3. The mask adopts a helmet-like appearance structure, and the automatic controller 7 judges the breathing action to determine whether the mask 8 is connected to the inhalation cavity 3 or the exhalation cavity 4 through the ventilation pipe 5. When the automatic controller 7 is turned on and captures the breathing action, the early warning mode is turned on. In the early warning mode, if no effective breathing behavior is detected within the set time period, the automatic controller 7 will issue an alarm reminder and open the emergency ventilation valve.

[0020] A specific scenario demonstration shows that when the air compressor 6 is turned on, the automatic controller 7 is turned on, and the mask 8 is worn, after the breathing action is detected on the plateau at an altitude of 3,600 meters, the inhalation cavity 3 and the exhalation cavity 4 slowly enter the liquid 1 water in turn under the action of the lifting device 14. The depth of the cavity is slowly increased with the adaptation of the body. At this time, the air pressure of the gas inhaled by the body through the inhalation cavity 3 will slowly increase, and the exhaust will be carried out by exhaling into the exhalation cavity 4. The bottoms of both cavities are open, and excess gas will float up and overflow the water surface for release. When the cavity is located at a depth of about 3 meters, the gas breathed by the body can be regarded as normal pressure gas. The housing 2 can be placed on the first floor, and the air compressor 6, the automatic controller 7 and the mask 8 are all placed on the third floor, which can largely avoid the occurrence of liquid 1 backflow and damage to the device. Before stopping use, the cavity is slowly floated to the liquid surface by the lifting device 14. In the case where the lifting device 14 is not provided, the cavity in Figure 1 can be directly fixed on the housing 1. If the cavity depth needs to be changed, it can also be achieved by changing the amount of liquid. The vent pipe 5 for exhalation in Figure 1 faces downward, and the exhalation cavity 4 is removed, and the exhalation vent pipe 5 is fixed to the housing 2 on the inhalation cavity 3.

[0021] Combined with Figure 2 An implementation of the plateau auxiliary breathing device designed by combining an air storage structure with a gravity device of the present invention is described in detail.

[0022] The plateau auxiliary breathing device includes a shell 2 filled with liquid 1 water, and an inverted "U"-shaped breathing cavity 10 is arranged in the shell 2. A light film is arranged in the breathing cavity 10 to isolate the gas-liquid contact, and the film does not affect the air pressure change in the cavity. The shell 2 above the liquid 1 realizes a relatively closed space through the baffle 9 and the diaphragm 12. A moving slide rail 11 is arranged above the shell 2 relative to the up and down movement of the baffle 9, so that the baffle 9 can move up and down relatively stably. The upper part of the baffle 9 is in direct contact with the environment, and the lower part of the baffle 9 is pressurized to form an independent air pressure space higher than the ambient air pressure. Under the upward force of the air pressure difference and the gravity of the baffle, the baffle 9 in the illustrated state is kept suspended above the liquid 1. When the amount of gas delivered and discharged by the air compressor 6 and the vacuum pump 16 is equivalent, the increase or decrease of the amount of gas in the breathing cavity 10 mainly depends on the breathing action. During the inhalation process, although the gas-liquid interface rises, the baffle 9 will drop and the transverse cross section of the shell 2 will drop along with the baffle 9. The baffle 9 pressurizes the enclosed gas space above the liquid 1, causing the gas-liquid interface liquid level to rise while the air pressure in the breathing cavity 10 also rises; before exhalation, the air compressor 6 appropriately increases the gas in the breathing cavity 10 in advance to reduce the air pressure in the breathing cavity 10; before inhalation, the air pump 16 appropriately reduces the gas in the breathing cavity 10 in advance, so that the air pressure in the cavity is higher during inhalation and lower during exhalation. The specific structure of the plateau auxiliary breathing device is that the air pump 16, the air compressor 6 and the nasal mask type mask 8 are all connected to the internal gas space of the breathing cavity 10 through the ventilation pipe 5. The air pressure in the breathing cavity is controlled by the cross-sectional size and hydraulic pressure of the baffle 9. The advantage of this device is that the structure is convenient. When the air pressure difference needs to be changed, it can be achieved by adding weight or reducing weight to the baffle 9.

[0023] When the liquid 1 in Figure 2 is removed, the breathing device becomes the third plateau auxiliary breathing device that simply utilizes the force of gravity.

[0024] Combined with Figure 3 An implementation of the plateau auxiliary breathing device designed with a pressure accumulator of the present invention is described in detail.

[0025] The plateau auxiliary breathing device includes a shell 2 filled with liquid 1 water, and the breathing cavity 10 in the shell 2 is fixed in the depth of the liquid 1 by a baffle 9 structure with a spring function. Gas is input into the breathing cavity 10 by an air compressor 6 through a ventilation pipe 5, and breathing is performed through a mask 8, on which an emergency ventilation valve 17 is provided. During operation, when the gas in the cavity increases, the newly added buoyancy will squeeze the spring, causing the cavity to rise and the liquid level at the gas-liquid interface in the cavity to drop, so that the air pressure drops while the gas increases, and the spring rebounds and compresses the gas pressure to rise as the gas decreases. The air pressure increases during the inhalation process, and the air pressure during the exhalation drops relative to the cavity pressure during the inhalation, which is beneficial to breathing. When the structure is provided with a lifting device 14, the baffle 9 and the breathing cavity 10 can be fixed on the lifting device 14.

[0026] Combined with Figure 4 An implementation of the plateau auxiliary breathing device designed by combining a pressure accumulator structure with a gravity device is described in detail.

[0027] The plateau auxiliary breathing device includes a shell 2 filled with liquid 1 water, a breathing cavity 10 is arranged in the shell 2, a counterweight is placed on the breathing cavity 10 so that the combined density of the cavity and the light baffle 9 is greater than the liquid water, and the breathing cavity 10 is suspended in the liquid 1 below the light baffle 9 by a flexible rope 15. A relatively regular breathing cavity 10 and a light baffle 9 with a wide upper and narrow lower structure design are adopted. As the gas thickness of the breathing cavity 10 increases by one unit, the baffle 9 needs to float up by more than one unit to maintain the rebalance of the force, so the more gas in the breathing cavity 10, the lower the gas pressure in the cavity. The gravity device above the shell 2 includes a gravity baffle 9, a moving slide rail 11, a diaphragm 12 and an exhaust port 13. The moving slide rail 11 is fixed on the shell 2, and when the gas in the breathing cavity 10 exceeds the maximum volume of the cavity, the gas floats up and overflows the liquid surface. As the gas under the gravity barrier 9 increases, the gravity barrier 9 is pushed upward along the moving slide rail 11. When it passes the exhaust port 13, part of the gas on the liquid surface escapes, causing the gravity barrier 9 to drop, so that the gas space on the liquid surface returns to a closed state, preventing excessive gas from escaping and causing a sudden drop in pressure. When equipped with a flexible rope 15, a small adjustment of the air pressure can be made by adjusting the length of the flexible rope between the breathing cavity 10 and the lightweight barrier 9 to adjust the depth of the breathing cavity 10 in the water and adjust the air pressure.

[0028] The above is only a specific application demonstration of the present invention and does not constitute any limitation on the protection scope of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the present invention.

Claims

1. A high-altitude auxiliary breathing device, comprising a shell (2) filled with liquid (1), wherein a cavity is provided inside the shell (2), wherein the cavity comprises an inhalation cavity (3) and an exhalation cavity (4), wherein when the cavity contains gas and the cavity is immersed in the liquid (1), the gas is squeezed by the surrounding liquid (1), and the gas pressure in the cavity is controlled by adjusting the depth of the liquid (1) in which the cavity is located, wherein: The inhalation cavity (3) is located below the exhalation cavity (4), and further comprises a ventilation pipe (5), an air compressor (6), an automatic controller (7), and a mask (8); the air compressor (6) is connected to the inhalation cavity (3) via the ventilation pipe (5); the mask (8) is connected to the inhalation cavity (3) and the exhalation cavity (4) via the ventilation pipe (5); when the automatic controller (7) detects that an inhalation action has terminated and an exhalation action has begun, the ventilation passage between the mask (8) and the exhalation cavity (4) is opened; when the automatic controller (7) detects that an exhalation action has terminated and an inhalation action has begun, the ventilation passage between the mask (8) and the inhalation cavity (4) is opened.

2. The plateau auxiliary breathing device according to claim 1, characterized in that: The housing (2) is provided with a moving slide rail (11), the moving slide rail (11) is provided with a baffle (9) that can move up and down, a soft diaphragm (12) is provided between the baffle (9) and the housing (2), and a closed gas space is formed below the baffle (9) and the diaphragm (12) and above the liquid (1), and exhaust can be carried out through an exhaust port (13) provided on the moving slide rail (11).

3. The plateau auxiliary breathing device according to claim 1, characterized in that: The inhalation cavity (3) and the exhalation cavity (4) are adjusted in depth in the liquid (1) by means of a lifting device (14).

4. The plateau auxiliary breathing device according to claim 2, characterized in that: The amount of gas between the diaphragm (12) and the liquid (1) is fixed, and the gas in the cavity is discharged to the outside through a vacuum pump (16).

5. The plateau auxiliary breathing device according to any one of claims 1 to 4, characterized in that: The mask (8) adopts a helmet shape, so that the external gas of the eyes, ears, nose and mouth is physically isolated from the ambient gas, and the mask (8) is provided with an emergency ventilation valve (17).

6. A highland auxiliary breathing device, comprising a shell (2) filled with a liquid (1), wherein a cavity including a baffle (9) is provided in the shell (2), wherein the cavity is a breathing cavity (10), wherein the breathing cavity (10) is regulated by the baffle (9), and as the amount of gas in the breathing cavity (10) increases, the baffle (9) controls the amplitude of the air pressure reduction in the breathing cavity (10) by adjusting the floating amplitude of the breathing cavity (10); as the amount of gas in the breathing cavity (10) decreases, the breathing cavity (10) sinks and the air pressure in the breathing cavity (10) increases under the regulation of the baffle (9), wherein: It also comprises a ventilation tube (5), an air compressor (6), and a mask (8); the air compressor (6) is connected to the breathing cavity (10) via the ventilation tube (5); and the mask (8) is connected to the breathing cavity (10) via the ventilation tube (5).

7. The plateau auxiliary breathing device according to claim 6, characterized in that: The housing (2) is provided with a moving slide rail (11), the moving slide rail (11) is provided with a baffle (9) that can move up and down, a soft diaphragm (12) is provided between the baffle (9) and the housing (2), and a closed gas space is formed below the baffle (9) and the diaphragm (12) and above the liquid (1), and exhaust can be carried out through an exhaust port (13) provided on the moving slide rail (11).

8. The plateau auxiliary breathing device according to claim 6, characterized in that: When the baffle (9) is a light floating block, the baffle (9) and the breathing cavity (10) are connected by a flexible rope (15), and the cavity depth and thus the air pressure in the cavity are adjusted by adjusting the length of the flexible rope (15) between the baffle (9) and the breathing cavity (10).

9. The plateau auxiliary breathing device according to claim 7, characterized in that: The amount of gas between the diaphragm (12) and the liquid (1) is fixed, and the gas in the cavity is discharged to the outside through a vacuum pump (16).

10. The plateau auxiliary breathing device according to any one of claims 6 to 9, characterized in that: The mask (8) adopts a helmet shape, so that the external gas of the eyes, ears, nose and mouth is physically isolated from the ambient gas, and the mask (8) is provided with an emergency ventilation valve (17).

11. A highland auxiliary breathing device, comprising a housing (2) provided with a moving slide rail (11), a baffle (9) which can move up and down is provided on the moving slide rail (11), a soft diaphragm (12) is provided between the baffle (9) and the housing (2), the housing (2) below the baffle (9) and the diaphragm (12) forms a closed breathing cavity (10), and the air pressure in the breathing cavity (10) is controlled by adjusting the gravity of the baffle (9) and the cross section of the housing (2), characterized in that: The cross section at the top of the shell (2) is larger than the cross section at the bottom of the shell (2), so that the more gas there is in the breathing cavity (10), the lower the air pressure. An exhaust port (13) is provided above the moving slide rail (11), and when the barrier (9) moves to the exhaust port (13), gas is discharged to the outside through the exhaust port (13). The system also includes a ventilation pipe (5), an air compressor (6), and a mask (8). The air compressor (6) is connected to the breathing cavity (10) through the ventilation pipe (5), and the mask (8) is connected to the breathing cavity (10) through the ventilation pipe (5).

12. The plateau auxiliary breathing device according to claim 11, characterized in that: The mask (8) adopts a helmet shape, so that the external gas of the eyes, ears, nose and mouth is physically isolated from the ambient gas, and the mask (8) is provided with an emergency ventilation valve (17).

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