Air suction pipe, breathing air supply valve and air supply device

Abstract

The embodiment of the utility model provides an air suction pipe, a breathing air supply valve and an air supply device, and belongs to the technical field of air supply. The air suction pipe comprises a nasal suction head, the nasal suction head is provided with an internal containing space, and two air inlets and at least one nasal suction pipe are oppositely arranged on the nasal suction head; the fixed ends of the two gas conveying pipelines are connected with the corresponding gas inlets, joints are arranged at the connecting ends of the gas conveying pipelines, and the joints are used for being connected with a breathing gas supply valve; and the two flow channel accelerators are respectively arranged at the air inlets of the snuffing head and are used for generating warning tones when the air passes through the snuffing head. The flow channel accelerator is arranged at the air inlet of the nasal suction head, so that a sound prompt is generated when air passes through the flow channel accelerator in the air suction process, whether the air suction pipe is in a normal air supply state or not can be judged accurately and visually, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply, in particular to an air intake pipe, a breathing air supply valve and an air supply device. Background Art

[0002] At present, when oxygen is supplied through portable gas cylinders in oxygen-deficient high-altitude areas, gas pipelines are usually used as a medium to achieve gas transfer and transportation. However, during the process of inhaling through gas pipelines, due to the colorless and odorless characteristics of the gas itself, no one other than the user can determine whether the gas is in normal supply. In certain circumstances, it is easy to lead to misjudgment and pose certain safety hazards. Utility Model Content

[0003] The purpose of the embodiments of the present utility model is to provide an inhalation tube, a respiratory air supply valve and an air supply device, so as to solve the above-mentioned problem that in the process of inhaling using a gas pipeline, it is impossible to judge whether the gas is in normal supply, which may easily lead to misjudgment under certain circumstances and pose certain safety hazards.

[0004] In order to achieve the above-mentioned object, an embodiment of the present invention provides an air intake pipe, which includes:

[0005] A nasal suction head having an internal accommodation space, and two air inlets and at least one nasal suction tube are oppositely arranged on the nasal suction head;

[0006] Two gas pipelines, the fixed ends of the two gas pipelines are connected to the corresponding air inlets, and the connecting ends of the gas pipelines are provided with connectors, which are used to connect to the breathing air supply valve;

[0007] Two flow channel accelerators are respectively arranged at the air inlet of the nasal suction head, and are used to generate a prompt sound when the gas passes through.

[0008] Optionally, the air intake pipe further includes:

[0009] The limiting member is provided with two limiting holes, and the connecting ends of the two gas pipelines pass through the corresponding limiting holes and are connected to the joint.

[0010] Optionally, the nasal suction tip is made of flexible material.

[0011] Optionally, the air intake pipe further includes:

[0012] The bead storage body is arranged in the internal accommodating space of the nasal nozzle, and the bead storage body is provided with explosive beads.

[0013] Optionally, the bead storage body is a filter cotton layer.

[0014] In a second aspect, the utility model provides a breathing air supply valve, the breathing air supply valve comprising:

[0015] A valve body is provided with a plurality of accommodating spaces, an air supply pipe and a breathing sensing pipe are provided on the valve body, an air control channel and an air supply channel are opened in the valve body, and both the air control channel and the air supply channel are connected to the air outlet of the flow and pressure stabilizing component;

[0016] a breathing sensing assembly disposed in a corresponding accommodation space within the valve body, configured to displace to open the air control channel when the breathing sensing tube senses the user inhaling, and to reset to close the air control channel when the breathing sensing tube senses the user stopping inhaling;

[0017] The air supply on-off assembly is disposed in the corresponding accommodation space in the valve body and is used to displace after the air control channel is opened to open the air supply channel and start supplying air through the air supply pipe, and to reset after the air control channel is closed to close the air supply channel and stop supplying air through the air supply pipe;

[0018] A flow and pressure stabilizing component is provided in a corresponding accommodation space in the valve body and is located below the air supply on-off component. The air inlet of the flow and pressure stabilizing component is connected to the air inlet of the breathing air supply valve, and is used to regulate the gas flow and gas pressure entering the breathing air supply valve;

[0019] The above-mentioned intake pipe has two joints connected to the air supply pipe and the breathing sensing pipe respectively.

[0020] Optionally, the valve body includes:

[0021] A valve cover, a first valve body, a second valve body and a valve seat are arranged in sequence from top to bottom;

[0022] The first valve body is provided with a first channel, a second channel and a third channel;

[0023] The second valve body is provided with a fourth channel and a fifth channel;

[0024] The first channel, the second channel, the third channel and the fourth channel together constitute the air control channel;

[0025] The fifth channel serves as the air supply channel;

[0026] The valve seat is provided with a first air inlet channel serving as an air inlet of the breathing air supply valve.

[0027] Optionally, the breathing sensing component includes:

[0028] The sensing diaphragm is arranged in the accommodating space between the valve cover and the first valve body, and covers the first channel; when the user inhales, negative pressure is formed on the upper surface of the sensing diaphragm, causing the sensing diaphragm to move upward to conduct the air control channel; when the user stops inhaling, the negative pressure on the upper surface of the sensing diaphragm disappears, causing the sensing diaphragm to return to its original position and close the air control channel.

[0029] Optionally, the breathing sensing component further includes:

[0030] The first spring is arranged between the valve cover and the sensing diaphragm, and is used to assist the sensing diaphragm to reset when the user stops inhaling.

[0031] Optionally, the breathing sensing tube is arranged on the valve cover, and the tube mouth is communicated with the accommodating space between the valve cover and the first valve body, and is located above the sensing diaphragm.

[0032] Optionally, a flow limiting member is provided in the fifth channel.

[0033] Optionally, the air supply on-off component includes:

[0034] The air supply diaphragm is arranged in the accommodating space between the first valve body and the second valve body, and covers the fifth channel; when the air control channel is opened, the air pressure on the upper surface of the air supply diaphragm decreases, causing the air supply diaphragm to move upward, thereby opening the air supply channel; when the air control channel is closed, the air pressure on the upper surface of the air supply diaphragm increases, and the air supply diaphragm resets under the action of pressure to close the air supply channel.

[0035] Optionally, the air supply on-off component further includes:

[0036] The second spring is arranged between the air supply diaphragm and the second valve body, and is used to assist the air supply diaphragm to generate an upward displacement to open the air supply channel.

[0037] Optionally, the air supply pipe is provided on the second valve body, the pipe opening is communicated with the accommodation space between the first valve body and the second valve body, and is located below the air supply diaphragm.

[0038] Optionally, the current and voltage stabilizing component includes:

[0039] a valve core slidably disposed in the accommodation space between the second valve body and the valve seat, the valve core being provided with a second air inlet passage, the large end of the valve core being connected to the inner wall of the second valve body via a first sealing ring, the small end of the valve core being connected to the inner wall of the valve seat via a second sealing ring, the small end of the valve core being provided with a plug for blocking the first air inlet passage;

[0040] A third spring is provided between the valve core and the valve seat.

[0041] In a third aspect, the present invention provides an air supply device, comprising:

[0042] The above-mentioned breathing air supply valve;

[0043] The gas cylinder is used to store gas, and the breathing gas supply valve is arranged on the gas cylinder.

[0044] Optionally, the outer wall of the bottom end of the valve seat is provided with an external thread and at least one limiting protrusion;

[0045] The gas cylinder is fixedly provided with a mounting seat, and the inner wall of the mounting seat is provided with an internal thread and at least one limiting groove;

[0046] The breathing air supply valve is rotatably connected to the mounting seat, and when the breathing air supply valve is rotated to a first preset stroke relative to the mounting seat, the external thread and the corresponding internal thread engage with each other, and the limiting protrusion and the corresponding limiting groove engage with each other, so as to achieve a tight connection between the breathing air supply valve and the mounting seat.

[0047] Optionally, the outer wall of the valve seat is provided with at least one first latching tooth;

[0048] A plurality of second latching teeth are arranged at intervals on the outer wall of the mounting seat;

[0049] After the breathing air supply valve rotates relative to the mounting seat beyond a second preset stroke, the first latching tooth and the corresponding second latching tooth touch each other, generating a prompt sound.

[0050] This technical solution sets a flow channel accelerator at the air inlet of the nasal suction tip to ensure that during the inhalation process, a sound prompt is generated when the gas passes through the flow channel accelerator, so as to accurately and intuitively judge whether the inhalation tube is in a normal air supply state, thereby improving the safety of use.

[0051] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0053] Figure 1 This is a schematic structural diagram of the suction pipe provided by the utility model;

[0054] Figure 2 This is a partial structural cross-sectional diagram of the suction pipe provided by the utility model;

[0055] Figure 3This is a schematic diagram of the first cross-sectional structure of the breathing air supply valve provided by the utility model;

[0056] Figure 4 This is a schematic diagram of the second cross-sectional structure of the breathing air supply valve provided by the utility model;

[0057] Figure 5 It is a structural diagram of the air supply device provided by the utility model;

[0058] Figure 6 This is a schematic cross-sectional view of the first valve seat and mounting seat provided by the present invention when connected;

[0059] Figure 7 This is a schematic diagram of the cross-sectional structure of the second valve seat provided by the present invention when connected to the mounting seat.

[0060] Description of Reference Numerals

[0061] 1- Inhalation tube; 2- Breathing air supply valve; 3- Gas cylinder;

[0062] 11-Nasal suction tip; 12-Air inlet; 13-Nasal suction tube;

[0063] 14-gas transmission pipeline; 15-connector; 16-flow channel accelerator;

[0064] 17-limiting member; 18-bead storage body; 19-bursting bead;

[0065] 21-valve body; 22-air supply pipe; 23-breathing sensing pipe;

[0066] 24-breathing sensing component; 25-air supply on-off component; 26-flow and voltage stabilization component;

[0067] 31-mounting seat; 201-first channel; 202-second channel;

[0068] 203-Third channel; 204-Fourth channel; 205-Fifth channel;

[0069] 206 - first air inlet passage; 207 - flow restrictor; 208 - second air inlet passage;

[0070] 211-valve cover; 212-first valve body; 213-second valve body;

[0071] 214-valve seat; 241-sensing diaphragm; 242-first spring;

[0072] 251-air supply diaphragm; 252-second spring; 261-valve core;

[0073] 262-first sealing ring; 263-second sealing ring; 264-plug;

[0074] 265-third spring; 311-internal thread; 312-limiting groove;

[0075] 313 - second latching tooth; 2141 - external thread; 2142 - limiting protrusion;

[0076] 2143-First latch tooth. DETAILED DESCRIPTION

[0077] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not intended to limit the embodiment of the present invention.

[0078] In the embodiments of the present invention, unless otherwise specified, directional words such as "up, down, left, right" generally refer to the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use.

[0079] The terms "first", "second", "third", etc. are only used for distinction and description and should not be understood as indicating or implying relative importance.

[0080] The terms "parallel" and "perpendicular" do not necessarily mean that the components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that the direction is more parallel than "perpendicular", not that the structure must be completely parallel, but rather that it can be slightly tilted.

[0081] Terms such as "horizontal," "vertical," and "overhanging" do not necessarily mean that a component must be absolutely horizontal, vertical, or overhanging. A slight tilt is permitted. For example, "horizontal" simply means that its direction is more horizontal than "vertical." It does not mean that the structure must be completely horizontal, but rather that a slight tilt is permitted.

[0082] Furthermore, terms like "approximately" and "substantially" are intended to clarify that the relevant content does not require absolute precision, but rather allows for certain deviations. For example, "approximately equal" does not simply mean absolute equality. Because absolute equality is difficult to achieve in actual production and operational processes, certain deviations generally exist. Therefore, in addition to absolute equality, "approximately equal" also encompasses the aforementioned situation of certain deviations. Taking this as an example, in other contexts, unless otherwise specified, terms like "approximately" and "substantially" have similar meanings as described above.

[0083] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0084] Figure 1 This is a schematic structural diagram of the suction pipe provided by the utility model; Figure 2 This is a partial structural cross-sectional diagram of the suction pipe provided by the utility model; Figure 3 This is a schematic diagram of the first cross-sectional structure of the breathing air supply valve provided by the utility model; Figure 4 This is a schematic diagram of the second cross-sectional structure of the breathing air supply valve provided by the utility model; Figure 5 It is a structural diagram of the air supply device provided by the utility model; Figure 6 This is a schematic cross-sectional view of the first valve seat and mounting seat provided by the present invention when connected; Figure 7 This is a schematic diagram of the cross-sectional structure of the second valve seat provided by the present invention when connected to the mounting seat.

[0085] like Figure 1-2 As shown, this embodiment provides an intake pipe, which can supply oxygen, other types of gases, or a mixture of oxygen and other types of gases. The intake pipe 1 includes:

[0086] A nasal suction head 11 having an internal accommodation space, two air inlets 12 and at least one nasal suction tube 13 are oppositely provided on the nasal suction head 11;

[0087] Two gas pipelines 14, the fixed ends of the gas pipelines 14 are connected to the corresponding air inlets 12, and the connecting ends of the two gas pipelines 14 are provided with connectors 15, and the connectors 15 are used to connect to the breathing air supply valve;

[0088] Two flow channel accelerators 16 are respectively disposed in the air inlet 12 of the nasal suction head 11 and are used to generate a prompt sound when air passes through.

[0089] Specifically, in this embodiment, for example, when a person is in a coma at high altitude or a child is using a nasal inhalation tube, bystanders cannot verify whether the person is breathing normally. This poses a safety hazard. Therefore, a flow accelerator 16 is provided within the air inlet 12 of the nasal inhalation tip 11. When air is supplied through the nasal inhalation tube 1, the flow of gas through the flow accelerator 16 produces a sound, allowing for quick and accurate determination of the presence of gas. Specifically, the flow accelerator 16 is an annular flow restriction disposed within the two air inlets 12, with an air hole extending through the middle of the annular flow restriction. When air is supplied through the nasal inhalation tube 1, the air flow through the annular flow restriction narrows the airway due to the smaller diameter of the air supply pipe, producing a sound. To ensure normal air supply, the nasal inhalation tube 1 can be used with a two-pipe respiratory supply valve. Therefore, two air inlets 12 are provided, and a connector 15 is provided at the connecting end of the air supply pipe 14 for connection to the respiratory supply valve 2. In order to achieve a better air supply effect, at least one nasal suction tube 13 is provided on the nasal suction head 11. When in use, the nasal suction tube 13 is inserted into the nostril; preferably, two nasal suction tubes 13 are provided so that one nasal suction tube 13 can be used for each nostril.

[0090] Furthermore, the air intake pipe 1 further comprises:

[0091] The limiting member 17 is provided with two limiting holes 171 , and the connecting end of the gas pipeline 14 passes through the corresponding limiting holes 171 to connect to the joint 15 .

[0092] Specifically, since the pipeline has a certain length, it may be entangled during use, which will affect the use effect. Therefore, a limiter 17 is provided on the gas pipeline 14, and two limit holes 171 are provided on the limiter 17. The connecting end of the gas pipeline 14 passes through the corresponding limit hole 171 and is connected to the joint 15, so that the limiter 17 can move on the gas pipeline 14 to adjust the limit position, thereby realizing the position limitation of the two gas pipelines 14 and avoiding bending and entanglement.

[0093] Furthermore, if Figure 2 As shown, the air intake pipe 1 further includes:

[0094] The bead storage body 18 is arranged in the internal accommodating space of the nasal nozzle 11 , and a bursting bead 19 is arranged in the bead storage body 18 .

[0095] Specifically, while satisfying the inhalation requirement, a bead storage body 18 can be provided within the internal storage space of the nasal nozzle 11. Within the bead storage body 18, a bursting bead 19 can be provided. During use, pressing the nasal nozzle 11 causes the bursting bead 19 within the bead storage body 18 to burst, thereby releasing the corresponding flavor, further enhancing the user experience. Preferably, the bursting bead 19 can be provided with e-liquid, medicine, fragrance, etc.

[0096] Furthermore, the bead storage body 18 is a filter cotton layer.

[0097] Specifically, the bead storage body 18 is set as a filter cotton layer and filled in the internal accommodating space of the nasal nozzle 11, which can not only limit the position of the bursting bead 19, but also achieve uniform distribution of the substance in the bursting bead 19 after the bursting bead 19 breaks and improve the durability of use.

[0098] Furthermore, the nasal suction tip 11 is made of flexible material.

[0099] Specifically, in this embodiment, the nasal suction tip 11 is configured to be made of a flexible material, so that the bursting bead 19 can be easily broken by squeezing; at the same time, the air supply pipe 14 is configured to be made of a flexible material so that it has a certain elasticity, thereby facilitating deformation; since the nasal suction tube 13 needs to be inserted into the nostrils during use, the nasal suction tube 13 is also configured to be made of a flexible material, which can protect the nasal cavity and improve the user experience.

[0100] In the prior art, in oxygen-deficient environments such as plateaus, it is necessary to replenish gas through portable gas cylinders. However, in the prior art, a pressure reducing valve is usually used to reduce the pressure of the high-pressure gas in the cylinder, and then the gas is continuously supplied through a pipeline. With this supply method, gas is continuously supplied regardless of whether the person breathing is in the inhalation state. This process results in a large amount of gas waste, which greatly shortens the inhalation time. Alternatively, a manual press-and-jet method is used to supply gas. Press-and-jet requires the coordination of breathing and pressing actions, which is difficult to control and effectively use for people suffering from oxygen deficiency. Therefore, in this embodiment, a breathing air supply valve 2 is proposed. The breathing air supply valve 2 can ensure that gas is only supplied when the person breathing is in the inhalation state, thereby reducing gas waste and greatly increasing the gas supply time of a single bottle of gas.

[0101] like Figure 3-4 As shown, the breathing air supply valve 2 can realize the supply of oxygen, other types of gases or a mixture of oxygen and other types of gases, etc., and the breathing air supply valve 2 includes:

[0102] A valve body 21 is provided with a plurality of accommodating spaces, an air supply pipe 22 and a breathing sensing pipe 23 are provided on the valve body 21, and an air control channel and an air supply channel are opened in the valve body 21, and both the air control channel and the air supply channel are connected to the air outlet of the flow and pressure stabilizing component 26;

[0103] The breathing sensing component 24 is disposed in the corresponding accommodation space within the valve body 21 and is configured to displace to open the air control channel when the user inhales via the breathing sensing tube, and to reset to close the air control channel when the user stops inhaling via the breathing sensing tube 23;

[0104] The air supply on-off assembly 25 is disposed in the corresponding accommodation space within the valve body 21 and is configured to displace to open the air supply passage and start supplying air through the air supply pipe after the air control passage is opened, and to reset to close the air supply passage and stop supplying air through the air supply pipe 22 after the air control passage is closed.

[0105] The flow and pressure stabilizing component 26 is arranged in the corresponding accommodation space in the valve body 21 and is located below the air supply on-off component 25. The air inlet of the flow and pressure stabilizing component 26 is connected to the air inlet of the breathing air supply valve 2, and is used to regulate the gas flow and gas pressure entering the breathing air supply valve 2;

[0106] The two joints 15 of the above-mentioned intake pipe 1 are connected to the air supply pipe 22 and the breathing sensing pipe 23 respectively.

[0107] Specifically, in this embodiment, an air supply pipe 22 and a breathing sensing pipe 23 are provided on the valve body 21. The fixed ends of the air supply pipe 22 and the breathing sensing pipe 23 are located inside the valve body 21, and the connecting ends of the air supply pipe 22 and the breathing sensing pipe 23 pass through the valve body 21 and are located outside the valve body 21 to respectively connect to the connector 15 of the inhalation pipe 1. In order to ensure that air is only supplied when the person inhaling is in the inhalation state and not supplied when the person is not inhaling, the valve body 21 is configured to have multiple accommodating spaces, and an air control channel and an air supply channel are opened in the valve body 21;

[0108] In order to achieve control of the air control channel, a breathing sensing component 24 is provided. The breathing sensing component 24 is disposed in the corresponding accommodation space and is configured to generate displacement to open the air control channel when the breathing sensing tube 23 senses the user inhaling, and reset to close the air control channel when the breathing sensing tube 23 senses the user stopping inhaling.

[0109] In order to realize the control of the air supply channel, the air supply on-off component 25 is arranged in the corresponding accommodation space, located below the breathing sensing component 24, and is used to generate displacement to open the air supply channel after the air control channel is opened, and start supplying air through the air supply pipe 22; and reset to close the air supply channel after the air control channel is closed, and stop supplying air through the air supply pipe 22;

[0110] In order to store as much gas as possible, the gas is usually compressed and stored, so the gas provided by the gas source is generally compressed gas. Therefore, in this embodiment, a flow and pressure stabilizing component 26 is provided to adjust the gas flow and gas pressure entering the breathing air supply valve 2, so that the gas pressure and flow are relatively stable. The flow and pressure stabilizing component 26 is arranged in the corresponding accommodation space and is located below the air supply on-off component 25. The air inlet of the flow and pressure stabilizing component 26 is connected to the air inlet of the breathing air supply valve 2, and the air control channel and the air supply channel are both connected to the air outlet of the flow and pressure stabilizing component 26.

[0111] Furthermore, if Figure 3-4 As shown, the valve body 21 includes:

[0112] The valve cover 211, the first valve body 212, the second valve body 213 and the valve seat 214 are arranged in sequence from top to bottom;

[0113] The first valve body 212 is provided with a first channel 201, a second channel 202 and a third channel 203;

[0114] The second valve body 213 is provided with a fourth channel 204 and a fifth channel 205;

[0115] The first channel 201, the second channel 202, the third channel 203 and the fourth channel 204 together constitute the air control channel;

[0116] The fifth channel 205 serves as the air supply channel;

[0117] The valve seat 214 is provided with a first air inlet channel 206 serving as an air inlet of the breathing air supply valve.

[0118] Specifically, in this embodiment, the valve body 21 is sequentially arranged from top to bottom with a valve cover 211, a first valve body 212, a second valve body 213, and a valve seat 214. This arrangement significantly reduces manufacturing and assembly costs, thereby significantly reducing the cost of using the respiratory air supply valve 2. The air control channel and the air supply channel are independently controlled, ensuring control accuracy.

[0119] Furthermore, if Figure 3-4 As shown, the breathing sensing component 24 includes:

[0120] The sensing diaphragm 241 is arranged in the accommodating space between the valve cover 211 and the first valve body 212, and covers the first channel 201; when the user inhales, negative pressure is formed on the upper surface of the sensing diaphragm 241, causing the sensing diaphragm 241 to move upward to open the air control channel; when the user stops inhaling, the negative pressure on the upper surface of the sensing diaphragm 241 disappears, causing the sensing diaphragm 241 to return to its original position and close the air control channel.

[0121] Specifically, in this embodiment, the sensing diaphragm 241 is arranged in the accommodating space between the valve cover 211 and the first valve body 212, and when no air is supplied, and during use, but the inhaling person is in a stopped inhalation state, the sensing diaphragm 241 blocks the first channel 201. When the user inhales, the gas in the breathing sensing tube 23 moves outward. At this time, gas movement will occur on the upper surface of the sensing diaphragm 241, forming a negative pressure, and an upward force, causing the sensing diaphragm 241 to move upward, opening the first channel 201, and thus making the air control channel conductive; when the user stops inhaling, the gas in the breathing sensing tube 23 moves inward, the negative pressure disappears, and the upward force also disappears, and the sensing diaphragm 241 moves downward and resets, closing the first channel 201, so that the air control channel is closed.

[0122] In another embodiment, a first spring 242 is provided between the valve cover 211 and the sensing diaphragm 241 to assist the sensing diaphragm 241 in quickly resetting when the user stops inhaling. When no air is supplied, or during use, but the person inhaling stops inhaling, the first spring 242 is in a slightly compressed state. At this time, the first spring 242 generates a small force. When the user inhales, gas movement occurs on the upper surface of the sensing diaphragm 241, forming a negative pressure. The negative pressure is sufficient to cause the sensing diaphragm 241 to move upward and compress the first spring 242, causing it to be in a compressed state. When the user stops inhaling, the negative pressure on the upper surface of the sensing diaphragm 241 disappears, and the negative pressure also disappears. At this time, the first spring 242 generates an elastic force to reset the sensing diaphragm 241, quickly closing the air control channel.

[0123] Furthermore, if Figure 3-4 As shown, the breathing sensing tube 23 is provided on the valve cover 211 , the tube mouth is communicated with the accommodation space between the valve cover 211 and the first valve body 212 , and is located above the sensing diaphragm 241 .

[0124] Specifically, in this embodiment, the breathing sensing tube 23 is disposed on the valve cover 111 and above the sensing diaphragm 241 in this manner, thereby ensuring the effect of negative pressure generation above the sensing diaphragm 241 .

[0125] Furthermore, if Figure 3-4 As shown, a flow limiting member 207 is provided in the fifth channel 205 .

[0126] Specifically, in this embodiment, the flow restrictor 207 provided in the fifth channel 205 is an annular structure with a small hole in its center for gas to pass through. When the gas volume and pressure of the gas source are low, the flow restrictor 207 can limit the maximum flow rate of the gas, thereby ensuring more stable gas output.

[0127] Furthermore, if Figure 3-4 As shown, the air supply on-off component 25 includes:

[0128] The air supply diaphragm 251 is arranged in the accommodating space between the first valve body 212 and the second valve body 213, and covers the fifth channel 205; when the air control channel is opened, the air pressure on the upper surface of the air supply diaphragm 251 decreases, causing the air supply diaphragm 251 to move upward, thereby opening the air supply channel; when the air control channel is closed, the air pressure on the upper surface of the air supply diaphragm 251 increases, and the air supply diaphragm 251 resets under the action of pressure to close the air supply channel.

[0129] Specifically, in this embodiment, when air is not supplied and during use, but the person inhaling is in a state of stopping inhalation, the sensing diaphragm 241 blocks the first channel 201. Since both the air control channel and the air supply channel are connected to the air outlet of the flow and pressure stabilizing component 26, the air pressure value on the upper surface of the air supply diaphragm 251 is greater than the air pressure value on the lower surface (air pressure value). Therefore, the air supply diaphragm 351 blocks the fifth channel 205 under the action of pressure, so that the air supply channel is in a closed state. When the pressure is too high, the air supply diaphragm 251 automatically ruptures, thereby achieving safe pressure release and avoiding accidents.

[0130] When the user inhales, the gas in the breathing sensing tube 23 moves outward. At this time, gas movement will occur on the upper surface of the sensing diaphragm 241, forming a negative pressure, which will generate an upward force to offset the elastic force of the first spring 242, causing the sensing diaphragm 241 to move upward, opening the first channel 201, and thus making the air control channel conductive. At this time, the gas in the air control channel flows outward, causing the air pressure on the upper surface of the air supply diaphragm 251 to be lower than the air pressure on the lower surface. The air supply diaphragm 251 produces an upward displacement, opening the fifth channel 205, so that the air supply channel is in a conductive state, and air can be supplied through the air supply pipe 22.

[0131] In another embodiment, a second spring 252 is provided between the air supply diaphragm 251 and the second valve body 213. When the user stops inhaling, the auxiliary air supply diaphragm 251 moves upward rapidly to open the air supply channel. When no air is supplied, or during use, but the inhaler stops inhaling, the second spring 252 is in a compressed state, generating an elastic force. However, since the air pressure value on the upper surface of the air supply diaphragm 251 is greater than the air pressure value on the lower surface, the elastic force generated by the second spring 252 is insufficient to offset the downward air pressure, and the sensing diaphragm 241 does not produce an upward displacement. When the user starts to inhale, the gas in the air control channel flows outward, causing the air pressure on the upper surface of the air supply diaphragm 251 to be lower than the air pressure on the lower surface. At this time, the first spring 242 generates an elastic force that enables the sensing diaphragm 241 to move upward rapidly, thereby quickly opening the air supply channel.

[0132] In addition, since the air supply diaphragm 251 is an elastic diaphragm with sealing properties, excessive deformation will cause its own destruction. Therefore, the second spring 252 is also used to balance the excess deformation generated by the air supply diaphragm 251 when the air supply diaphragm 251 is under different pressures, so that the deformation of the air supply diaphragm 251 is within the set range, thereby protecting the air supply diaphragm 251 and improving its service life.

[0133] Among them, when the air supply diaphragm 251 covers the fifth channel 205, the internal accommodating space where the air supply diaphragm 251 is located is divided into a closed upper cavity and a lower cavity by the air supply diaphragm 251, the air supply pipe 22 is connected to the lower cavity, and the upper cavity is connected to the first channel 201 and the second channel 202.

[0134] Furthermore, if Figure 3-4 As shown, the air supply pipe 22 is provided on the second valve body 213 , the pipe opening is communicated with the accommodation space between the first valve body 212 and the second valve body 213 , and is located below the air supply diaphragm 251 .

[0135] Specifically, in this embodiment, the air supply pipe 22 is provided on the second valve body 213 and is located below the air supply diaphragm 251 , which can ensure that after the air supply channel is opened, the air supply pipe 22 can provide stable air supply.

[0136] Furthermore, if Figure 3-4 As shown, the current and voltage stabilizing component 26 includes:

[0137] A valve core 261 is slidably disposed in the accommodation space between the second valve body 213 and the valve seat 214. The valve core 261 is provided with a second air inlet passage 208. The large end of the valve core 261 is connected to the inner wall of the second valve body 213 via a first sealing ring 262. The small end of the valve core 261 is connected to the inner wall of the valve seat 214 via a second sealing ring 263. A plug 264 is provided at the small end of the valve core 261 for sealing the first air inlet passage 206.

[0138] The third spring 265 is disposed between the valve core 261 and the valve seat 214 .

[0139] Specifically, in this embodiment, the valve core 261 includes a large end and a small end, and the large end of the valve core 261 is located above the small end of the valve core 261. The large end of the valve core 261 is connected to the inner wall of the second valve body 213 via a first sealing ring 262, and the small end of the valve core 261 is connected to the inner wall of the valve seat 214 via a second sealing ring 263. This ensures that there is no airflow or leakage between the large end and the small end, and gas can only move through the second air inlet channel 208, forming a large cavity between the large end of the valve core 261 and the second valve body 213, and a small cavity between the small end of the valve core 261 and the valve seat 214. In order to control the pressure through the valve core 261, a plug 264 is provided at the small end of the valve core 261 for blocking the first air inlet channel 206. When the plug 264 blocks the first air inlet channel 206, gas cannot flow in. When the plug 264 opens the first air inlet channel 206, gas can flow in.

[0140] More specifically, in this embodiment, the pressure at each end is controlled by the area ratio of the large end and the small end of the valve core 261, wherein the product of pressure and area is force, the forces at both ends of the valve core 261 are the same, and the pressures are different if the areas are different. Under different pressures, the valve core 261 will move, the area of ​​the small end of the valve core 261 is small, but the pressure is high, and the area of ​​the large end of the valve core 261 is large, but the pressure is low; when the forces on both sides are inconsistent, the first air inlet channel 206 is blocked by the plug at the small end of the valve core 261, so that the gas cannot flow out, and pressure balance is achieved at this time. When the gas is sucked away, the pressure at the large end of the valve core 261 decreases, and the valve core 261 moves toward the large end. At this time, the high-pressure gas at the plug 264 flows out, and the missing gas is supplemented to the large end of the valve core 261 through the second air inlet channel 208, so that the pressure is balanced again, thereby repeatedly opening and closing the plug 264 and the first air inlet channel 206 to achieve pressure control and ensure constant pressure.

[0141] The third spring 265 can assist in pushing the valve core 261 toward the larger area when the gas source pressure decreases, reducing pressure fluctuations caused by the decrease in gas source pressure and maintaining a stable pressure. The valve core 261 can have a T-shaped structure, and the second air inlet passage 208 can have an inverted T-shaped hole.

[0142] In the prior art, in oxygen-deficient environments such as plateaus, it is necessary to supplement oxygen through a gas cylinder 3. However, in the prior art, a pressure reducing valve is usually used to reduce the pressure on the high-pressure oxygen in the gas cylinder, and then the gas is continuously supplied through a pipeline. With this supply method, regardless of whether the person breathing is in an inhalation state, the gas is continuously supplied. In this process, a large amount of gas is wasted, resulting in a significant shortening of the inhalation time. Alternatively, a manual press-and-jet method is used for gas supply. Press-and-jet requires the coordination of breathing and pressing actions, which is difficult to control and effectively use for people suffering from oxygen deficiency. Therefore, in this embodiment, a gas supply device is proposed that combines an inhalation tube 1 and a breathing air supply valve 2. The breathing air supply valve 2 can ensure that gas is supplied only when the person breathing is in an inhalation state. The convenience of use is improved by the inhalation tube 1, which can greatly improve the user experience, reduce gas waste, and greatly increase the gas supply time of a single gas cylinder 3.

[0143] like Figure 5 As shown, this embodiment further provides an air supply device, which includes:

[0144] The above-mentioned breathing air supply valve 2;

[0145] The gas cylinder 3 is used to store gas, and the breathing gas supply valve 2 is arranged on the gas cylinder 3.

[0146] Specifically, in this embodiment, in addition to being mounted on gas cylinder 3, the breathing air supply valve 2 can also be connected to the gas outlet of gas cylinder 3 via a gas delivery pipeline, enabling long-distance gas delivery. For example, by placing gas cylinder 3 in a gas backpack, the air inlet of the breathing air supply valve 2 can be connected to the gas outlet of gas cylinder 3 via a gas delivery pipeline. This approach can further increase gas storage capacity and improve gas supply duration. Gas cylinder 3 stores compressed oxygen, other gases, or a mixture of oxygen and other gases.

[0147] Furthermore, if Figure 5-7 As shown, the outer wall of the bottom end of the valve seat 214 is provided with an external thread 2141 and at least one limiting protrusion 2142;

[0148] The gas cylinder 3 is fixedly provided with a mounting seat 31 , and the inner wall of the mounting seat 31 is provided with an internal thread 311 and at least one limiting groove 312 ;

[0149] The breathing air supply valve 2 is rotatably connected to the mounting seat 31, and when the breathing air supply valve 2 is rotated to a first preset stroke relative to the mounting seat 31, the external thread 2141 and the corresponding internal thread 311 are engaged with each other, and the limiting protrusion 2142 and the corresponding limiting groove 312 are engaged with each other, so as to realize a fastened connection between the breathing air supply valve and the mounting seat 31.

[0150] Specifically, in this embodiment, the breathing air supply valve 2 and the gas cylinder 3 can be transported separately and assembled before use, or they can be connected as a whole before transportation.

[0151] When transported after being connected as one, there may be squeezing and stepping during transportation, resulting in air leakage. Therefore, an external thread 2141 and at least one limiting protrusion 2142 are set on the outer wall of the bottom end of the valve seat 214, and the external thread 2141 is set below the limiting protrusion 2142, and an internal thread 311 and at least one limiting groove 312 are set on the inner wall of the mounting seat 31 (in this embodiment, the limiting groove 312 includes a first limiting groove and a second limiting groove set in sequence from top to bottom), and the internal thread 311 is set below the limiting groove 312, wherein the internal thread 311 and the external thread 2141 match each other, and the limiting protrusion 2142 matches the corresponding limiting groove 312. When the bottom end of the valve seat 214 is rotated into the mounting seat 31, when the valve seat 214 just enters the stroke, it reaches the first preset stroke, the external thread 2141 and the corresponding internal thread 311 engage with each other (only the external thread 2141 at the bottom and the internal thread 311 at the top engage with each other), and the limiting protrusion 2142 and the corresponding limiting groove 312 (the first limiting groove) engage with each other to achieve a fastened connection between the breathing air supply valve and the mounting seat 31. Through the protection of the double-layer structure of the external thread 2141 and the internal thread 311 and the limiting protrusion 2142 and the limiting groove 312, the pressure bearing after being squeezed and stepped on is achieved, and the occurrence of air leakage is reduced as much as possible.

[0152] In another embodiment, the internal thread 311 and the external thread 2141 can be conventional threads, which can be unscrewed again by simply rotating in the opposite direction; or they can be made into one-way threads, which can only be opened but not closed.

[0153] Furthermore, if Figure 5 As shown, the outer wall of the valve seat 214 is provided with at least one first latching tooth 2143;

[0154] A plurality of second latching teeth 313 are arranged at intervals on the outer wall of the mounting seat 31;

[0155] After the breathing air supply valve 2 rotates relative to the mounting seat 31 beyond the second preset stroke, the first latching teeth 2143 and the corresponding second latching teeth 313 touch each other, generating a prompt sound.

[0156] Specifically, in this embodiment, for example, when a one-way thread is used, since it can only rotate in one direction, the user cannot accurately determine whether it has been fully rotated. Therefore, at least one first latching tooth 2143 is provided on the outer wall of the valve seat 214, and a plurality of second latching teeth 313 are spaced apart on the outer wall of the mounting base 31. When the breathing air supply valve 2 is rotated relative to the mounting base 31 beyond a second predetermined stroke (at which point the air path is connected), the first latching tooth 2143 and the corresponding second latching tooth 313 will contact each other, thereby producing a prompt sound, indicating that inhalation can now be performed. At this time, the external thread 2141 and the corresponding internal thread 311 engage with each other (the external thread 2141 and the internal thread 311 are fully engaged with each other), and the stop protrusion 2142 and the corresponding stop groove 312 (the second stop groove 312) engage with each other, thereby achieving a secure connection between the breathing air supply valve and the mounting base 31. When multiple first latching teeth 2143 are provided, each first latching tooth 2143 is spaced apart.

[0157] More specifically, by changing the size and shape of the first latch 2143 and the second latch 313 , the timbre of the prompt sound can be changed.

[0158] The above describes in detail the optional implementation methods of the embodiment of the present invention in conjunction with the accompanying drawings. However, the embodiment of the present invention is not limited to the specific details in the above implementation methods. Within the technical concept of the embodiment of the present invention, the technical solution of the embodiment of the present invention can be subjected to various simple modifications, and these simple modifications all fall within the protection scope of the embodiment of the present invention.

[0159] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the embodiments of the present utility model will not further describe various possible combinations.

[0160] In addition, the various implementations of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.

Claims

1. An air intake pipe, characterized in that: The air intake pipe comprises: A nasal suction head (11), the nasal suction head (11) having an internal accommodation space, and two air inlets (12) and at least one nasal suction tube (13) are arranged opposite to each other on the nasal suction head (11); Two gas pipelines (14), the fixed ends of the two gas pipelines (14) are connected to the corresponding air inlets (12), and the connecting ends of the gas pipelines (14) are provided with connectors (15), and the connectors (15) are used to connect to the breathing air supply valve; Two flow channel accelerators (16) are respectively arranged at the air inlet (12) of the nasal suction head (11) and are used to generate a prompt sound when gas passes through.

2. The air intake pipe according to claim 1, characterized in that The air intake pipe further comprises: A limiting member (17) is provided with two limiting holes (171), and the connecting ends of the two gas pipelines (14) pass through the corresponding limiting holes (171) and are connected to the joint (15).

3. The air intake duct according to claim 1, characterized in that The nasal suction tip (11) is made of flexible material.

4. The air intake duct according to claim 3, characterized in that The air intake pipe further comprises: The bead storage body (18) is arranged in the internal accommodating space of the nasal suction head (11), and the bead storage body (18) is provided with a bursting bead (19).

5. The air intake duct according to claim 4, characterized in that The bead storage body (18) is a filter cotton layer.

6. A breathing air supply valve, characterized in that: The breathing air supply valve comprises: A valve body (21) is provided with a plurality of accommodating spaces, an air supply pipe (22) and a breathing sensing pipe (23) are provided on the valve body (21), an air control channel and an air supply channel are provided in the valve body (21), and both the air control channel and the air supply channel are communicated with the air outlet of the flow and pressure stabilizing component (26); A breathing sensing component (24) is disposed in a corresponding accommodation space within the valve body (21), and is configured to generate displacement to open the air control channel when the breathing sensing tube senses that the user is inhaling, and to reset to close the air control channel when the breathing sensing tube (23) senses that the user has stopped inhaling; An air supply on-off assembly (25) is disposed in a corresponding accommodation space within the valve body (21), and is used to generate displacement to open the air supply channel after the air control channel is opened, thereby starting to supply air through the air supply pipe, and to reset to close the air supply channel after the air control channel is closed, thereby stopping the air supply through the air supply pipe (22); A flow and pressure stabilizing component (26) is arranged in a corresponding accommodation space in the valve body (21) and is located below the air supply on-off component (25). The air inlet of the flow and pressure stabilizing component (26) is connected to the air inlet of the breathing air supply valve and is used to regulate the gas flow and gas pressure entering the breathing air supply valve; The inhalation pipe according to any one of claims 1 to 5, wherein the two joints (15) of the inhalation pipe are respectively connected to the air supply pipe (22) and the breathing sensing pipe (23).

7. The breathing air supply valve according to claim 6, characterized in that: The valve body (21) comprises: A valve cover (211), a first valve body (212), a second valve body (213) and a valve seat (214) are sequentially arranged from top to bottom; The first valve body (212) is provided with a first channel (201), a second channel (202) and a third channel (203); The second valve body (213) is provided with a fourth channel (204) and a fifth channel (205); The first channel (201), the second channel (202), the third channel (203) and the fourth channel (204) together constitute the air control channel; The fifth channel (205) serves as the air supply channel; The valve seat (214) is provided with a first air inlet channel (206) serving as an air inlet of the breathing air supply valve.

8. The breathing air supply valve according to claim 7, characterized in that: The breathing sensing component (24) comprises: The sensing diaphragm (241) is arranged in the accommodation space between the valve cover (211) and the first valve body (212), and covers the first channel (201); when the user inhales, a negative pressure is formed on the upper surface of the sensing diaphragm (241), causing the sensing diaphragm (241) to move upward to open the air control channel; when the user stops inhaling, the negative pressure on the upper surface of the sensing diaphragm (241) disappears, causing the sensing diaphragm (241) to return to its original position and close the air control channel.

9. The breathing air supply valve according to claim 8, characterized in that: The breathing sensing component (24) further includes: The first spring (242) is arranged between the valve cover (211) and the sensing diaphragm (241) and is used to assist the sensing diaphragm (241) in returning to its original position when the user stops inhaling.

10. The breathing air supply valve according to claim 8, characterized in that: The breathing sensing tube (23) is arranged on the valve cover (211), the tube mouth is communicated with the accommodation space between the valve cover (211) and the first valve body (212), and is located above the sensing diaphragm (241).

11. The breathing air supply valve according to claim 7, characterized in that: A flow limiting member (207) is provided in the fifth channel (205).

12. The breathing air supply valve according to claim 7, characterized in that: The air supply on-off assembly (25) comprises: The air supply diaphragm (251) is arranged in the accommodation space between the first valve body (212) and the second valve body (213), and covers the fifth channel (205); when the air control channel is opened, the air pressure on the upper surface of the air supply diaphragm (251) decreases, causing the air supply diaphragm (251) to move upward to open the air supply channel; when the air control channel is closed, the air pressure on the upper surface of the air supply diaphragm (251) increases, and the air supply diaphragm (251) is reset under the action of pressure to close the air supply channel.

13. The breathing air supply valve according to claim 12, characterized in that: The air supply on-off assembly (25) further comprises: The second spring (252) is arranged between the air supply diaphragm (251) and the second valve body (213) and is used to assist the air supply diaphragm (251) in generating an upward displacement to open the air supply channel.

14. The breathing air supply valve according to claim 12, characterized in that: The air supply pipe (22) is arranged on the second valve body (213), the pipe mouth is communicated with the accommodation space between the first valve body (212) and the second valve body (213), and is located below the air supply diaphragm (251).

15. The breathing air supply valve according to claim 7, characterized in that: The current and voltage stabilizing component (26) comprises: A valve core (261) is slidably disposed in the accommodation space between the second valve body (213) and the valve seat (214); a second air inlet passage (208) is provided on the valve core (261); a large end of the valve core (261) is connected to the inner wall of the second valve body (213) via a first sealing ring (262); a small end of the valve core (261) is connected to the inner wall of the valve seat (214) via a second sealing ring (263); and a plug (264) is provided at the small end of the valve core (261) for blocking the first air inlet passage (206); A third spring (265) is provided between the valve core (261) and the valve seat (214).

16. An air supply device, characterized in that: The air supply device comprises: The breathing air supply valve according to any one of claims 6 to 15; A gas cylinder (3) is used for storing gas, and the breathing gas supply valve is arranged on the gas cylinder (3).

17. The air supply device according to claim 16, characterized in that The outer wall of the bottom end of the valve seat (214) is provided with an external thread (2141) and at least one limiting protrusion (2142); A mounting seat (31) is fixedly provided on the gas cylinder (3), and an inner wall of the mounting seat (31) is provided with an internal thread (311) and at least one limiting groove (312); The breathing air supply valve is rotatably connected to the mounting seat (31), and when the breathing air supply valve is rotated to a first preset stroke relative to the mounting seat (31), the external thread (2141) and the corresponding internal thread (311) are engaged with each other, and the limiting protrusion (2142) and the corresponding limiting groove (312) are engaged with each other, so as to achieve a fastened connection between the breathing air supply valve and the mounting seat (31).

18. The air supply device according to claim 17, characterized in that The outer wall of the valve seat (214) is provided with at least one first latching tooth (2143); A plurality of second latching teeth (313) are arranged at intervals on the outer wall of the mounting seat (31); After the breathing air supply valve rotates relative to the mounting seat (31) beyond a second preset stroke, the first latching tooth (2143) and the corresponding second latching tooth (313) touch each other, generating a prompt sound.

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