Oxygen inhalation and exhaust device and balanced oxygen inhalation and exhaust box

Abstract

The invention provides an oxygen inhalation and exhaustion device and a balanced oxygen inhalation and exhaustion box. The oxygen inhalation and exhaustion device comprises a film hood, the balanced oxygen inhalation and exhaustion box and an air inlet and exhaust assembly. The film hood can accommodate the head, and gas with a fixed quantity can be introduced and waste gas can be discharged. The gas at least comprises oxygen and carbon dioxide. The exhaust gas includes oxygen and carbon dioxide. The air inlet and outlet assembly is connected to the balance oxygen inhalation and exhaustion box and the film hood, gas generated by the balance oxygen inhalation and exhaustion box is input into the film hood through the air inlet and outlet assembly, and waste gas exhausted by the film hood is conveyed to the balance oxygen inhalation and exhaustion box. The balance oxygen inhalation and exhaust box is arranged in the pressure reduction bin, the balance oxygen inhalation and exhaust box can adjust the gas flow in real time according to the requirement of the thin film hood for the gas flow, and the thin film hood is made to contain oxygen with the preset concentration or the oxygen concentration contained in the thin film hood is made to be the same as the oxygen concentration of the real environment. The balance oxygen suction and exhaust box can also recycle waste gas exhausted by the film hood to generate gas.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen preparation, and in particular to an oxygen intake and exhaust device and a balanced oxygen intake and exhaust box. Background Art

[0002] During diving or shield machine pressure operation, the operators are in an environment far higher than the atmospheric pressure, and a large amount of gas will be dissolved in the blood and various tissues in the human body. When the operation is completed, if you quickly return to the normal pressure environment, these gases accumulated in the tissues will form bubbles and block the trachea and blood vessels, causing damage to body tissues and causing decompression sickness. Therefore, after the high-pressure environment operation is completed, it is necessary to enter the decompression chamber for decompression. Oxygen decompression can help operators gradually expel the inert gases in the body, avoid the formation of decompression sickness, and help shorten the decompression time and improve the overall efficiency of pressure operations.

[0003] The oxygen absorption efficiency of existing oxygen inhalation devices is low, which is specifically reflected in the following two aspects: First, the oxygen absorption resistance is large, that is, during decompression, the human body is in a state of fatigue after work, and cannot maintain active oxygen absorption for a long time, and is prone to falling asleep, resulting in poor oxygen absorption effect for decompression personnel and the inability to shorten the decompression time. Second, only pure oxygen can be inhaled. That is, inhaling pure oxygen will cause vasoconstriction, slow heartbeat, and weaken blood circulation, which is not conducive to decompression and treatment.

[0004] Therefore, how to improve the oxygen absorption efficiency of the oxygen absorption device while also improving the safety of oxygen absorption has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0005] The present application provides an oxygen inhalation and exhaust device to solve the technical problem in the prior art of how to improve the oxygen inhalation efficiency of the oxygen inhalation device while also improving the safety of oxygen inhalation. The present application also provides a balanced oxygen inhalation and exhaust box.

[0006] The present application provides an oxygen inhalation and exhaust device, which is applied to a decompression chamber, and includes: a film head cover, a balanced oxygen inhalation and exhaust box, and an air inlet and outlet assembly;

[0007] The thin film head cover can accommodate the head, and can pass a fixed amount of gas and discharge waste gas; the gas includes at least oxygen and carbon dioxide; the waste gas includes unabsorbed oxygen and newly generated or unabsorbed carbon dioxide;

[0008] The inlet and outlet assembly is connected to the balanced oxygen intake and exhaust box and the thin film head cover, and the gas generated by the balanced oxygen intake and exhaust box is input into the thin film head cover through the inlet and outlet assembly, and the exhaust gas discharged from the thin film head cover is transported to the balanced oxygen intake and exhaust box;

[0009] The balanced oxygen intake and exhaust box is arranged in the decompression chamber. The balanced oxygen intake and exhaust box can adjust the gas volume in real time according to the demand of the thin film hood for the flow rate of the gas, so that the thin film hood contains a preset concentration of oxygen or the oxygen concentration contained is the same as the oxygen concentration in the actual environment; the balanced oxygen intake and exhaust box can also reuse the exhaust gas discharged by the thin film hood to generate the gas; the quantitative gas volume includes a quantitative gas volume of oxygen and a quantitative gas volume of carbon dioxide.

[0010] Optionally, the balanced oxygen intake and exhaust box includes a box body, an air bag assembly, an air supply pipeline, a pressure reducing valve and a flow control valve;

[0011] The airbag assembly is disposed in the box;

[0012] The air supply pipeline is connected to the airbag assembly and an external air supply device, and the air supply pipeline is used to transport oxygen and air provided by the external air supply device to the airbag assembly;

[0013] The pressure reducing valve is connected to the air supply pipeline and is used to adjust the oxygen and air provided by the external air supply device to the required pressure in the pressure reducing chamber;

[0014] The flow control valve is arranged at the outlet end of the airbag assembly, and is used to adjust the oxygen and air of the required pressure to the quantitative gas volume required by the film head mask.

[0015] Optionally, the airbag assembly includes: an airbag, a connecting rod, a sliding rod, a sliding shaft, a spring and a three-way valve;

[0016] The air supply pipeline is connected to the air bag and an external air supply device, and the air supply pipeline delivers oxygen and air provided by the external air supply device to the air bag;

[0017] The slide bar is arranged inside the airbag; the slide shaft is sleeved on the slide bar and can slide on the slide bar;

[0018] One end of the connecting rod is connected to the airbag, and the other end of the connecting rod is connected to the sliding shaft; when the airbag is contracted, the opening angle of the connecting rod relative to the sliding rod is reduced; when the airbag is expanded, the opening angle of the connecting rod relative to the sliding rod is increased;

[0019] The three-way valve is arranged at the outlet end of the airbag; the spring is arranged inside the three-way valve, and when the spring is compressed toward the air intake valve port of the three-way valve, air is introduced into the airbag through the air intake valve port of the three-way valve; when the spring is compressed toward the air intake valve port of the three-way valve, air is sucked into the airbag through the air intake valve port of the three-way valve.

[0020] Optionally, the connecting rod is provided with two connecting rods, including a first connecting rod and a second connecting rod;

[0021] The first connecting rod and the second connecting rod are symmetrically arranged relative to the sliding rod; the sliding shaft is arranged as one, namely, the first sliding shaft; one end of the first connecting rod is connected to the first local point of the airbag, and the other end of the first connecting rod is connected to the first sliding shaft; one end of the second connecting rod is connected to the second local point of the airbag, and the other end of the second connecting rod is connected to the first sliding shaft; the first local point and the second local point of the airbag are symmetrical relative to the sliding rod; or

[0022] The connecting rods are arranged in two pieces, including two first connecting rods and two second connecting rods; correspondingly, the sliding shafts are arranged in two pieces, including a first sliding shaft and a second sliding shaft, and the first sliding shaft and the second sliding shaft are respectively slidably connected to the sliding rod; the two first connecting rods are symmetrically arranged relative to the sliding rod; one end of the two first connecting rods are respectively connected to the two first local points of the airbag, and the two first local points of the airbag are symmetrical relative to the sliding rod; the other ends of the two first connecting rods are commonly connected to the first sliding shaft; the two second connecting rods are symmetrically arranged relative to the sliding rod, and are located above the first connecting rod; one end of the two second connecting rods are respectively connected to the two first local points of the airbag, and the other ends of the two second connecting rods are commonly connected to the second sliding shaft.

[0023] Optionally, the airbag assembly is provided as at least one.

[0024] Optionally, the film head cover includes: an air intake and exhaust collar, a transparent film head cover and a neck cover;

[0025] The transparent film-type head cover is connected to the upper part of the intake and exhaust collar, and the transparent film-type head cover can accommodate the head;

[0026] The intake and exhaust assembly is connected to the balanced oxygen intake and exhaust box and the intake and exhaust collar, and the intake and exhaust collar can pass a fixed amount of gas into the transparent film-type head cover and discharge the exhaust gas from the transparent film-type head cover;

[0027] The neck cover is connected to the lower part of the air intake and exhaust collar.

[0028] Optionally, the air inlet and outlet collar comprises: a collar body, a gas inlet port, a gas inlet pipeline, a gas exhaust port, a gas exhaust pipeline and an elastic structure;

[0029] The gas inlet and the gas exhaust are respectively arranged on the inner ring of the collar body; and the gas inlet is connected to the first end of the gas inlet pipeline arranged inside the collar body, and the gas inlet of the gas discharge body is connected to the first end of the gas exhaust pipeline arranged inside the collar body;

[0030] The second end of the gas intake pipeline and the second end of the gas exhaust pipeline are respectively connected to the intake and exhaust components;

[0031] The elastic structure is arranged at the connection between the air intake and exhaust collar and the transparent film-type head cover.

[0032] Optionally, the elastic structure includes an elastic cord and a connecting hole;

[0033] The connection holes are arranged at intervals along the circumferential direction at the connection between the air intake and exhaust collar and the transparent film-type head cover;

[0034] The elastic cords pass through the connection holes in sequence; or

[0035] The elastic structure includes: a positioning belt, an elastic belt, a buckle and a slot;

[0036] The positioning belts are arranged at intervals along the circumferential direction at the connection between the air intake and exhaust collar and the transparent film-type head cover;

[0037] The elastic belt passes through the positioning belt in sequence;

[0038] The buckle is arranged at the end of the elastic belt, and the slots are distributed on the elastic belt in sequence; by moving the end of the elastic belt to change the distance between the end of the elastic belt and the elastic belt, the buckle can be buckled in the corresponding slot.

[0039] Optionally, the air intake and exhaust assembly includes: a first air intake interface, a first exhaust interface, a second exhaust interface, a second air intake interface, a first connecting hose, and a second connecting hose;

[0040] The first air inlet interface is in communication with the second end of the gas inlet pipeline;

[0041] The first exhaust interface is in communication with the second end of the gas exhaust pipeline;

[0042] The second air inlet interface is communicated with the air intake valve port of the three-way valve;

[0043] The second exhaust port is communicated with the air inlet port of the three-way valve;

[0044] The first connecting hose is connected to the first air inlet interface and the second air inlet interface;

[0045] The second connecting hose is connected to the first exhaust interface and the second exhaust interface.

[0046] Optionally, the second exhaust interface and the second intake interface are configured as at least one group.

[0047] The present application also provides a balanced oxygen inhalation and exhaust box, which is arranged in a decompression chamber and includes: a box body, an air bag assembly, an air supply pipeline, a pressure reducing valve and a flow control valve;

[0048] The airbag assembly is disposed in the box;

[0049] The air supply pipeline is connected to the airbag assembly and an external air supply device, and the air supply pipeline is used to transport oxygen and air provided by the external air supply device to the airbag assembly;

[0050] The pressure reducing valve is connected to the air supply pipeline and is used to adjust the oxygen and air provided by the external air supply device to the required pressure in the pressure reducing chamber;

[0051] The flow control valve is arranged at the outlet end of the airbag assembly, and is used to adjust the oxygen and air of the required pressure to the quantitative amount of gas required by the external film hood, so that the film hood contains a preset concentration of oxygen or an oxygen concentration that is the same as the oxygen concentration in the actual environment; the airbag assembly can also reuse the exhaust gas discharged from the film hood to generate the gas; the quantitative amount of gas includes a quantitative amount of oxygen and a quantitative amount of carbon dioxide.

[0052] Compared with the prior art, this application has the following advantages:

[0053] The present application provides an oxygen inhalation and exhaust device, which is applied to a decompression chamber, and includes: a film hood, a balanced oxygen inhalation and exhaust box, and an intake and exhaust assembly. The film hood can accommodate the head, and can pass a fixed amount of gas and exhaust waste gas. The gas includes at least oxygen and carbon dioxide. The waste gas includes unabsorbed oxygen and newly generated or unabsorbed carbon dioxide. The intake and exhaust assembly is connected to the balanced oxygen inhalation and exhaust box and the film hood, and the gas generated by the balanced oxygen inhalation and exhaust box is input into the film hood through the intake and exhaust assembly, and the waste gas discharged from the film hood is transported to the balanced oxygen inhalation and exhaust box. The balanced oxygen inhalation and exhaust box is arranged in the decompression chamber, and the balanced oxygen inhalation and exhaust box can adjust the gas volume in real time according to the demand of the film hood for the gas flow rate, so that the film hood contains a preset concentration of oxygen or the oxygen concentration contained is the same as the oxygen concentration in the actual environment. The balanced oxygen inhalation and exhaust box can also reuse the waste gas discharged from the film hood to generate gas. The fixed amount of gas includes a fixed amount of oxygen and a fixed amount of carbon dioxide.

[0054] It can be understood that during the oxygen inhalation process, the thin film hood provided by the present application can completely seal the human head, allowing the human body to breathe oxygen calmly without any breathing resistance and without being affected by any interference factors. At the same time, the thin film hood can also discharge all the exhaled waste oxygen. In addition, the balanced oxygen inhalation and exhaust box provided by the present application can adjust the gas volume in real time according to the demand of the thin film hood for the gas flow rate, and can maintain the oxygen concentration in the thin film hood at the same level as the gas concentration in the actual environment without ventilation, or make the thin film hood have a preset concentration of oxygen, so as to improve the oxygen absorption efficiency of the oxygen inhalation device while improving the safety of oxygen inhalation. In addition, the balanced oxygen inhalation and exhaust box can also reuse the waste gas discharged by the thin film hood to generate gas, and the waste gas includes unabsorbed oxygen, so that oxygen can be saved and the function of reusing breathing gas can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a structural schematic diagram of an oxygen intake and exhaust device provided in the first embodiment of the present application.

[0056] Figure 2 It is a structural schematic diagram of the balanced oxygen intake and exhaust box provided in the first embodiment of the present application after being opened from one perspective.

[0057] Figure 3 It is a schematic diagram of the structure of the air intake and exhaust collar provided in the first embodiment of the present application.

[0058] Figure 4 It is a schematic structural diagram of an airbag assembly provided in the first embodiment of the present application.

[0059] Figure 5 It is a schematic structural diagram of another airbag assembly provided in the first embodiment of the present application.

[0060] Reference numerals:

[0061] Thin film hood 1, air intake and exhaust collar 11, collar body 111, gas inlet port 112, gas inlet pipeline 113, gas exhaust port 114, gas exhaust pipeline 115, transparent thin film hood 12, neck cover 13, balanced oxygen inhalation and exhaust box 2, box body 21, airbag assembly 3, airbag 31, first connecting rod 311, second connecting rod 312, sliding rod 313, first sliding shaft 314, second sliding shaft 315, first local point 316, second local point 317, spring 32, three-way valve 33, air supply pipeline 22, pressure reducing valve 23, flow control valve 24, air intake and exhaust assembly 4, second air intake interface 41, second exhaust interface 42, first connecting hose 43, second connecting hose 44, air supply device 5, oxygen supply device 6. DETAILED DESCRIPTION

[0062] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0063] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0064] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] The oxygen absorption efficiency of existing oxygen inhalation devices is low, which is specifically reflected in the following two aspects: First, the oxygen absorption resistance is large, that is, during decompression, the human body is in a state of fatigue after work, and cannot maintain active oxygen absorption for a long time, and is prone to falling asleep, resulting in poor oxygen absorption effect for decompression personnel and the inability to shorten the decompression time. Second, only pure oxygen can be inhaled. That is, inhaling pure oxygen will cause vasoconstriction, slow heartbeat, and weaken blood circulation, which is not conducive to decompression and treatment.

[0066] Based on this, the present application provides an oxygen inhalation and exhaust device, which is applied to a decompression chamber, including: a film hood, a balanced oxygen inhalation and exhaust box, and an intake and exhaust assembly. Among them, the film hood can accommodate the head, and can pass a fixed amount of gas and exhaust waste gas. The gas includes at least oxygen and carbon dioxide. The waste gas includes unabsorbed oxygen and newly generated or unabsorbed carbon dioxide. The intake and exhaust assembly is connected to the balanced oxygen inhalation and exhaust box and the film hood, and the gas generated by the balanced oxygen inhalation and exhaust box is input into the film hood through the intake and exhaust assembly, and the waste gas discharged from the film hood is transported to the balanced oxygen inhalation and exhaust box. The balanced oxygen inhalation and exhaust box is arranged in the decompression chamber, and the balanced oxygen inhalation and exhaust box can adjust the gas volume in real time according to the demand of the film hood for the gas flow rate, so that the film hood contains a preset concentration of oxygen or the oxygen concentration contained is the same as the oxygen concentration in the actual environment. The balanced oxygen inhalation and exhaust box can also reuse the waste gas discharged from the film hood to generate gas. The fixed amount of gas includes a fixed amount of oxygen and a fixed amount of carbon dioxide.

[0067] It can be understood that during the oxygen inhalation process, the thin film hood provided by the present application can completely seal the human head, allowing the human body to breathe oxygen calmly without any breathing resistance and without being affected by any interference factors. At the same time, the thin film hood can also discharge all the exhaled waste oxygen. In addition, the balanced oxygen inhalation and exhaust box provided by the present application can adjust the gas volume in real time according to the demand of the thin film hood for the gas flow rate, and can maintain the oxygen concentration in the thin film hood at the same level as the gas concentration in the actual environment without ventilation, or make the thin film hood have a preset concentration of oxygen, so as to improve the oxygen absorption efficiency of the oxygen inhalation device while improving the safety of oxygen inhalation. In addition, the balanced oxygen inhalation and exhaust box can also reuse the waste gas discharged by the thin film hood to generate gas, and the waste gas includes unabsorbed oxygen, so that oxygen can be saved and the function of reusing breathing gas can be realized.

[0068] Next, the oxygen absorption and exhaust device provided by the present application will be described in detail with reference to the accompanying drawings. Figure 1 It is a structural schematic diagram of an oxygen intake and exhaust device provided in the first embodiment of the present application. Figure 2 It is a structural schematic diagram of the balanced oxygen intake and exhaust box provided in the first embodiment of the present application after being opened from one perspective. Figure 3 It is a schematic diagram of the structure of the air intake and exhaust collar provided in the first embodiment of the present application. Figure 4 It is a schematic structural diagram of an airbag assembly provided in the first embodiment of the present application. Figure 5 It is a schematic structural diagram of another airbag assembly provided in the first embodiment of the present application.

[0069] like Figures 1 to 5 As shown, the present application provides an oxygen inhalation and exhaust device, which is applied to a decompression chamber. The oxygen inhalation and exhaust device includes: a thin film head cover 1, a balanced oxygen inhalation and exhaust box 2, and an air intake and exhaust assembly 4. Among them, the thin film head cover 1 can accommodate the head, and can pass a fixed amount of gas and exhaust waste gas. The gas includes at least oxygen and carbon dioxide. The waste gas includes unabsorbed oxygen and newly generated or unabsorbed carbon dioxide. The air intake and exhaust assembly 4 is connected to the balanced oxygen inhalation and exhaust box 2 and the thin film head cover 1, and the gas generated by the balanced oxygen inhalation and exhaust box 2 is input into the thin film head cover 1 through the air intake and exhaust assembly 4, and the waste gas discharged from the thin film head cover 1 is transported to the balanced oxygen inhalation and exhaust box 2. The balanced oxygen inhalation and exhaust box 2 is arranged in the decompression chamber, and the balanced oxygen inhalation and exhaust box 2 can adjust the gas volume in real time according to the demand of the thin film head cover 1 for the gas flow rate, so that the thin film head cover 1 contains a preset concentration of oxygen or the oxygen concentration contained is the same as the oxygen concentration in the actual environment. The balanced oxygen inhalation and exhaust box 2 can also reuse the waste gas discharged from the thin film head cover 1 to generate gas. The fixed amount of gas includes a fixed amount of oxygen and a fixed amount of carbon dioxide.

[0070] Specifically, in the present embodiment, the balanced oxygen intake and exhaust box 2 includes a box body 21, an airbag assembly 3, an air supply line 22, a pressure reducing valve 23 and a flow control valve 24. Among them, the airbag assembly 3 is arranged in the box body 21. In one example, the airbag assembly 3 is set to be at least one. Then, if multiple airbag assemblies 3 are set, the volume of the box body 21 changes with the number of airbag assemblies 3. The air supply line 22 is connected to the airbag assembly 3 and the external air supply device, and the air supply line 22 is used to transport the oxygen and air provided by the external air supply device to the airbag assembly 3. In one example, the external air supply device includes an air supply device 5 and an oxygen supply device 6, the air supply device 5 is used to provide air, and the oxygen supply device 6 is used to provide oxygen. The first end of the air supply line 22 is set to two end lines, and the second end of the air supply line 22 is set to one end line, that is, the air supply line 22 has a "Y-type" structure. The two ends of the first end of the air supply pipeline 22 are connected to the air supply device 5 and the oxygen supply device 6 respectively to deliver air and oxygen respectively. The delivery of air and oxygen can be carried out simultaneously or separately. The two ends of the first end of the air supply pipeline 22 can form mixed air after transporting air and oxygen to the second end of the air supply pipeline 22 and then be delivered to the airbag assembly 3.

[0071] The pressure reducing valve 23 is connected to the air supply pipeline 22, and is used to adjust the oxygen and air provided by the external air supply device to the required pressure in the pressure reducing chamber. Corresponding to the structure of the air supply pipeline 22, the pressure reducing valve 23 is connected to the second end of the air supply pipeline 22 to adjust the oxygen and air in the second end of the air supply pipeline 22 to the required pressure in the pressure reducing chamber. The flow control valve 24 is arranged at the outlet end of the airbag assembly 3, and is used to adjust the oxygen and air of the required pressure adjusted to the quantitative gas volume required by the film head mask 1.

[0072] It should be noted that, in the present embodiment, in order to facilitate the control of the pressure reducing valve 23 and the flow control valve 24, a control device is also included. The control device is arranged outside the box body 21, and the control device is respectively communicated with the pressure reducing valve 23 and the flow control valve 24 to control the pressure reducing valve 23 and the flow control valve 24.

[0073] Further, in one example, taking an airbag assembly 3 as an example, the airbag assembly 3 includes: an airbag 31, a connecting rod, a sliding rod 313, a sliding shaft, a spring 32 and a three-way valve 33. Among them, the air supply pipeline 22 is connected to the airbag 31 and the external air supply device, and the air supply pipeline 22 delivers oxygen and air provided by the external air supply device to the airbag 31. The sliding rod 313 is arranged inside the airbag 31. The sliding shaft is mounted on the sliding rod 313 and can slide on the sliding rod 313. One end of the connecting rod is connected to the airbag 31, and the other end of the connecting rod is connected to the sliding shaft. When the airbag 31 shrinks, the opening angle of the connecting rod relative to the sliding rod 313 decreases. When the airbag 31 expands, the opening angle of the connecting rod relative to the sliding rod 313 increases.

[0074] In one example, two connecting rods are provided, including a first connecting rod 311 and a second connecting rod 312. The first connecting rod 311 and the second connecting rod 312 are symmetrically arranged relative to the sliding rod 313. One sliding shaft is provided, namely, the first sliding shaft 314. Specifically, one end of the first connecting rod 311 is connected to the first local point 316 of the airbag 31, and the other end of the first connecting rod 311 is connected to the first sliding shaft 314. One end of the second connecting rod 312 is connected to the second local point 317 of the airbag 31, and the other end of the second connecting rod 312 is connected to the first sliding shaft 314. The first local point 316 and the second local point 317 of the airbag 31 are symmetrical relative to the sliding rod 313. When the airbag 31 is contracted, one end of the first link 311 connected to the first local point 316 of the airbag 31 and one end of the second link 312 connected to the second local point 317 of the airbag 31 are fixed, and the other ends of the first link 311 and the second link 312 connected to the first sliding shaft 314 move down along the sliding bar 313 driven by the first sliding shaft 314, and the opening angles of the first link 311 and the second link 312 relative to the sliding bar 313 gradually decrease, thereby causing the airbag 31 to contract. Conversely, when the airbag 31 is expanded, the other ends of the first link 311 and the second link 312 connected to the first sliding shaft 314 move up along the sliding bar 313 driven by the first sliding shaft 314, and the opening angles of the first link 311 and the second link 312 relative to the sliding bar 313 gradually increase, thereby causing the airbag 31 to expand.

[0075] Alternatively, in one example, two connecting rods are provided, including two first connecting rods 311 and two second connecting rods 312. Correspondingly, two sliding shafts are provided, including a first sliding shaft 314 and a second sliding shaft 315, and the first sliding shaft 314 and the second sliding shaft 315 are respectively slidably connected to the sliding rod 313. The specific connection method is as follows: the two first connecting rods 311 are symmetrically arranged relative to the sliding rod 313, and one end of each of the two first connecting rods 311 is respectively connected to two first local points 316 of the airbag 31, that is, one end of one of the first connecting rods 311 is connected to one of the first local points 316 of the airbag 31, and one end of the other first connecting rod 311 is connected to another first local point 316 of the airbag 31. The two first local points 316 of the airbag 31 are symmetrical relative to the sliding rod 313. The other ends of each of the two first connecting rods 311 are commonly connected to the first sliding shaft 314. The two second connecting rods 312 are symmetrically arranged relative to the sliding rod 313 and are located above the first connecting rod 311. One end of each of the two second connecting rods 312 is connected to two first local points 316 of the airbag 31, that is, one end of one of the second connecting rods 312 is connected to one of the first local points 316 of the airbag 31, and one end of the other second connecting rod 312 is connected to another first local point 316 of the airbag 31. In other words, one end of one of the first connecting rods 311 and one end of one of the second connecting rods 312 are connected to one of the first local points 316; one end of another first connecting rod 311 and one end of another second connecting rod 312 are connected to another first local point 316. The other ends of each of the two second connecting rods 312 are connected to the second sliding shaft 315.

[0076] When the airbag 31 shrinks, one end of the two first connecting rods 311 and one end of the two second connecting rods 312 connected to the first local point 316 of the airbag 31 are fixed, the other ends of the two first connecting rods 311 connected to the first sliding shaft 314 move downward along the sliding rod 313 driven by the first sliding shaft 314, and the other ends of the two second connecting rods 312 connected to the second sliding shaft 315 move upward along the sliding rod 313 driven by the second sliding shaft 315, and the opening angles of the two first connecting rods 311 and the two second connecting rods 312 relative to the sliding rod 313 gradually decrease, thereby causing the airbag 31 to shrink. On the contrary, when the airbag 31 is inflated, the other ends of the two first connecting rods 311 connected to the first sliding shaft 314 move up along the sliding rod 313 driven by the first sliding shaft 314, and the other ends of the two second connecting rods 312 connected to the second sliding shaft 315 move down along the sliding rod 313 driven by the second sliding shaft 315, and the opening angles of the two first connecting rods 311 and the two second connecting rods 312 relative to the sliding rod 313 gradually increase, thereby promoting the inflation of the airbag 31. The up and down movement of the first sliding shaft 314 and the second sliding shaft 315 is relative to the center of the sliding rod 313.

[0077] The three-way valve 33 is arranged at the outlet end of the airbag 31. The spring 32 is arranged inside the three-way valve 33. When the spring 32 is compressed toward the air intake valve port of the three-way valve 33, air is introduced into the airbag 31 through the air intake valve port of the three-way valve 33, that is, the gas enters the airbag 31 through the air intake valve port of the three-way valve 33. When the spring 32 is compressed toward the air intake valve port of the three-way valve 33, air is inhaled into the airbag 31 through the air intake valve port of the three-way valve 33, that is, the gas is sucked out of the airbag 31 through the air intake valve port of the three-way valve 33.

[0078] In this embodiment, the film hood 1 includes: an air intake and exhaust collar 11, a transparent film hood 12 and a neck cover 13. Among them, the transparent film hood 12 is connected to the upper part of the air intake and exhaust collar 11, and the transparent film hood 12 is configured to be compatible with the human head. The transparent film hood 12 can accommodate the entire head in the transparent film hood 12 without causing discomfort to the head. The air intake and exhaust assembly 4 is connected to the balanced oxygen intake and exhaust box 2 and the air intake and exhaust collar 11. The air intake and exhaust collar 11 can pass a fixed amount of gas into the transparent film hood 12 and discharge the exhaust gas from the transparent film hood 12. The neck cover 13 is connected to the lower part of the air intake and exhaust collar 11.

[0079] Further, in this embodiment, the air intake and exhaust collar 11 includes: a collar body 111, a gas inlet 112, a gas inlet pipeline 113, a gas exhaust port 114, a gas exhaust pipeline 115 and an elastic structure. Among them, the gas inlet 112 and the gas exhaust port 114 are respectively arranged on the inner ring of the collar body 111, and the gas inlet 112 is connected to the first end of the gas inlet pipeline 113 arranged inside the collar body 111, and the gas inlet of the collar body is connected to the first end of the gas exhaust pipeline 115 arranged inside the collar body 111. The second end of the gas inlet pipeline 113 and the second end of the gas exhaust pipeline 115 are respectively connected to the air intake and exhaust assembly 4. In one example, in order to further adjust the flow rate of the gas in the transparent film type head cover 12, a secondary flow control valve 24 can be set in the gas inlet pipeline 113, and the secondary flow control valve 24 can adjust the gas flow in the gas inlet pipeline 113 appropriately. The elastic structure is arranged at the connection between the air intake and exhaust collar 11 and the transparent film type head cover 12. The elastic structure can realize the sealing of the transparent film type head cover 12 to prevent gas from leaking from the transparent film type head cover 12.

[0080] In one example, the elastic structure includes an elastic cord and a connecting hole. The connecting holes are arranged at intervals along the circumferential direction at the connection between the air intake and exhaust collar 11 and the transparent film-type head cover 12. The elastic cord passes through the connecting holes in sequence, and the connection between the air intake and exhaust collar 11 and the transparent film-type head cover 12 is tightened by stretching the elastic cord. Alternatively, in another example, the elastic structure can also be the following structure, specifically, the elastic structure includes: a positioning belt, an elastic belt, a buckle and a slot. The positioning belt is arranged at intervals along the circumferential direction at the connection between the air intake and exhaust collar 11 and the transparent film-type head cover 12. The elastic belt passes through the positioning belt in sequence. The buckle is arranged at the end of the elastic belt, and the slots are distributed on the elastic belt in sequence. By moving the end of the elastic belt, the distance between the end of the elastic belt and the elastic belt is changed, and the buckle can be buckled in the corresponding slot.

[0081] The air intake and exhaust assembly 4 is connected to the balanced oxygen intake and exhaust box 2 and the thin film head cover 1, and the gas generated by the balanced oxygen intake and exhaust box 2 is input into the thin film head cover 1 through the air intake and exhaust assembly 4, and the exhaust gas discharged from the thin film head cover 1 is transported to the balanced oxygen intake and exhaust box 2. Specifically, in this embodiment, the air intake and exhaust assembly 4 includes: a first air intake interface, a first exhaust interface, a second exhaust interface 42, a second air intake interface 41, a first connecting hose 43 and a second connecting hose 44. Among them, the first air intake interface is connected to the second end of the gas intake pipeline 113. The first exhaust interface is connected to the second end of the gas exhaust pipeline 115. The second air intake interface 41 is connected to the air intake valve port of the three-way valve 33, and the second exhaust interface 42 is connected to the air intake valve port of the three-way valve 33. The first connecting hose 43 is connected to the first air intake interface and the second air intake interface 41. The second connecting hose 44 is connected to the first exhaust interface and the second exhaust interface 42. In this way, the gas in the airbag 31 is transported to the transparent film type hood 12 through the intake valve port of the three-way valve 33, the second air inlet interface 41, the first connecting hose 43, the first air inlet interface and the gas intake pipeline 113; similarly, the exhaust gas in the transparent film type hood 12 can be transported to the airbag 31 through the gas exhaust pipeline 115, the first exhaust interface, the second connecting hose 44 and the second exhaust interface 42.

[0082] In this embodiment, the second exhaust interface 42 and the second air inlet interface 41 are set as at least one group, that is, one second exhaust interface 42 and one second air inlet interface 41. In one example, the positions where the second exhaust interface 42 and the second air inlet interface 41 are set are not unique, that is, the second exhaust interface 42 and the second air inlet interface 41 can be set in parallel, for example, the second exhaust interface 42 and the second air inlet interface 41 are set on the same end surface of the box body 21. The second exhaust interface 42 and the second air inlet interface 41 can be set relative to each other, for example, the second exhaust interface 42 and the second air inlet interface 41 are set relative to each other at two opposite end surfaces of the box body 21. When the second exhaust interface 42 and the second air inlet interface 41 are set as multiple groups, multiple air inlet and exhaust assemblies 4 and the film head mask 1 can be connected at the same time to provide a quantitative amount of gas for multiple patients.

[0083] In this embodiment, in order to purify the exhaust gas discharged from the thin film head cover 1, an air purification device is also provided. The air purification device is arranged at the air inlet valve port of the three-way valve 33 so that the purified exhaust gas can be re-introduced into the airbag 31 for reuse to generate the gas.

[0084] The present application provides an oxygen inhalation and exhaust device, which is applied to a decompression chamber, and includes: a thin film head cover 1, a balanced oxygen inhalation and exhaust box 2, and an air intake and exhaust assembly 4. Among them, the thin film head cover 1 can accommodate the head, and can pass a fixed amount of gas and exhaust waste gas. The gas includes at least oxygen and carbon dioxide. The waste gas includes unabsorbed oxygen and newly generated or unabsorbed carbon dioxide. The air intake and exhaust assembly 4 is connected to the balanced oxygen inhalation and exhaust box 2 and the thin film head cover 1, and the gas generated by the balanced oxygen inhalation and exhaust box 2 is input into the thin film head cover 1 through the air intake and exhaust assembly 4, and the waste gas discharged from the thin film head cover 1 is transported to the balanced oxygen inhalation and exhaust box 2. The balanced oxygen inhalation and exhaust box 2 is arranged in the decompression chamber, and the balanced oxygen inhalation and exhaust box 2 can adjust the gas volume in real time according to the demand of the thin film head cover 1 for the gas flow rate, so that the thin film head cover 1 contains a preset concentration of oxygen or the oxygen concentration contained is the same as the oxygen concentration in the actual environment. The balanced oxygen inhalation and exhaust box 2 can also reuse the waste gas discharged from the thin film head cover 1 to generate gas. The fixed amount of gas includes a fixed amount of oxygen and a fixed amount of carbon dioxide.

[0085] It can be understood that, during the oxygen inhalation process, the thin film hood 1 provided by the present application can completely seal the human head, allowing the human body to inhale oxygen calmly without any breathing resistance and without being affected by any interference factors. At the same time, the thin film hood 1 can also discharge all the exhaled waste oxygen. In addition, the balanced oxygen inhalation and exhaust box 2 provided by the present application can adjust the gas volume in real time according to the demand of the thin film hood 1 for the gas flow rate, and can maintain the oxygen concentration in the thin film hood 1 at the same level as the gas concentration in the actual environment without ventilation, or make the thin film hood 1 have a preset concentration of oxygen, so as to improve the oxygen inhalation efficiency of the oxygen inhalation device while improving the safety of oxygen inhalation. In addition, the balanced oxygen inhalation and exhaust box 2 can also reuse the waste gas discharged by the thin film hood 1 to generate gas, and the waste gas includes unabsorbed oxygen, so that oxygen can be saved and the function of reusing breathing gas can be realized.

[0086] The present application also provides a balanced oxygen inhalation and exhaust box, which is arranged in a decompression chamber, and includes: a box body, an airbag assembly, an air supply pipeline, a pressure reducing valve and a flow control valve. The airbag assembly is arranged in the box body; the air supply pipeline is connected to the airbag assembly and an external air supply device, and the air supply pipeline is used to transport the oxygen and air provided by the external air supply device to the airbag assembly; the pressure reducing valve is connected to the air supply pipeline, and is used to adjust the oxygen and air provided by the external air supply device to the required pressure in the decompression chamber; the flow control valve is arranged at the outlet end of the airbag assembly, and is used to adjust the oxygen and air of the required pressure adjusted to the quantitative gas volume required by the external film hood, so that the film hood contains a preset concentration of oxygen or an oxygen concentration that is the same as the oxygen concentration in the actual environment; the airbag assembly can also reuse the exhaust gas discharged by the film hood to generate the gas; the quantitative gas volume includes a quantitative gas volume of oxygen and a quantitative gas volume of carbon dioxide.

[0087] In this embodiment, the specific structure and description of the balanced oxygen intake and exhaust box can refer to the description of the balanced oxygen intake and exhaust box in the first embodiment above, and will not be repeated here.

[0088] It can be understood that the balanced oxygen inhalation and exhaust box provided by the present application can adjust the gas volume in real time according to the demand of the film hood for gas flow, and can maintain the oxygen concentration in the film hood at the same level as the gas concentration in the actual environment without ventilation, or make the film hood have a preset concentration of oxygen, so as to improve the oxygen absorption efficiency of the oxygen inhalation device while improving the safety of oxygen absorption. In addition, the balanced oxygen inhalation and exhaust box can also reuse the exhaust gas discharged by the film hood to generate gas, and the exhaust gas includes unabsorbed oxygen, so that oxygen can be saved and the function of reusing breathing gas can be realized.

[0089] It should be noted that, although several structures, components or units for realizing related functions are mentioned in the above detailed description, such division is not mandatory. In fact, according to the specific implementation of the present application, the features and functions of two or more structures, components or units described above can be concretized in one structure, component or unit. Conversely, the features and functions of one structure, component or unit described above can be further divided into multiple components, structures or units to be concretized.

[0090] In addition, although the components and the installation methods of the components or devices in the present application are described in a specific order in the drawings, this does not require or imply that the components or devices must be designed according to the specific components or the installation methods of the components, or that all the components shown must be included to achieve the desired results. Additionally or alternatively, some components can be omitted, multiple components can be combined into one component to achieve corresponding functions, and / or one component can be decomposed into multiple components to achieve corresponding functions, etc.

[0091] Although the present application is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present application. Any technical personnel in this field may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims of the present application.

Claims

1. An oxygen suction and exhaust device, applied to a decompression chamber, characterized in that: include: Membrane hood, balanced oxygen intake and exhaust box and intake and exhaust components; The thin film head cover can accommodate the head, and can pass a fixed amount of gas and discharge waste gas; the gas includes at least oxygen and carbon dioxide; the waste gas includes unabsorbed oxygen and newly generated or unabsorbed carbon dioxide; The inlet and outlet assembly is connected to the balanced oxygen intake and exhaust box and the thin film head cover, and the gas generated by the balanced oxygen intake and exhaust box is input into the thin film head cover through the inlet and outlet assembly, and the exhaust gas discharged from the thin film head cover is transported to the balanced oxygen intake and exhaust box; The balanced oxygen intake and exhaust box is arranged in the decompression chamber. The balanced oxygen intake and exhaust box can adjust the gas volume in real time according to the demand of the thin film hood for the flow rate of the gas, so that the thin film hood contains a preset concentration of oxygen or the oxygen concentration contained is the same as the oxygen concentration in the actual environment; the balanced oxygen intake and exhaust box can also reuse the exhaust gas discharged by the thin film hood to generate the gas; the quantitative gas volume includes a quantitative gas volume of oxygen and a quantitative gas volume of carbon dioxide.

2. The oxygen absorption and exhaust device according to claim 1, characterized in that: The balanced oxygen inhalation and exhaust box comprises: a box body, an air bag assembly, an air supply pipeline, a pressure reducing valve and a flow control valve; The airbag assembly is disposed in the box; The air supply pipeline is connected to the airbag assembly and an external air supply device, and the air supply pipeline is used to transport oxygen and air provided by the external air supply device to the airbag assembly; The pressure reducing valve is connected to the air supply pipeline and is used to adjust the oxygen and air provided by the external air supply device to the required pressure in the pressure reducing chamber; The flow control valve is arranged at the outlet end of the airbag assembly, and is used to adjust the oxygen and air of the required pressure to the quantitative gas volume required by the film head mask.

3. The oxygen absorption and exhaust device according to claim 2, characterized in that: The airbag assembly comprises: an airbag, a connecting rod, a sliding rod, a sliding shaft, a spring and a three-way valve; The air supply pipeline is connected to the air bag and an external air supply device, and the air supply pipeline delivers oxygen and air provided by the external air supply device to the air bag; The slide bar is arranged inside the airbag; the slide shaft is sleeved on the slide bar and can slide on the slide bar; One end of the connecting rod is connected to the airbag, and the other end of the connecting rod is connected to the sliding shaft; when the airbag is contracted, the opening angle of the connecting rod relative to the sliding rod is reduced; when the airbag is expanded, the opening angle of the connecting rod relative to the sliding rod is increased; The three-way valve is arranged at the outlet end of the airbag; the spring is arranged inside the three-way valve, and when the spring is compressed toward the air intake valve port of the three-way valve, air is introduced into the airbag through the air intake valve port of the three-way valve; when the spring is compressed toward the air intake valve port of the three-way valve, air is sucked into the airbag through the air intake valve port of the three-way valve.

4. The oxygen absorption and exhaust device according to claim 2, characterized in that: The connecting rods are provided with two connecting rods, including a first connecting rod and a second connecting rod; The first connecting rod and the second connecting rod are symmetrically arranged relative to the sliding rod; the sliding shaft is arranged as one, namely, the first sliding shaft; one end of the first connecting rod is connected to the first local point of the airbag, and the other end of the first connecting rod is connected to the first sliding shaft; one end of the second connecting rod is connected to the second local point of the airbag, and the other end of the second connecting rod is connected to the first sliding shaft; the first local point and the second local point of the airbag are symmetrical relative to the sliding rod; or The connecting rods are arranged in two pieces, including two first connecting rods and two second connecting rods; correspondingly, the sliding shafts are arranged in two pieces, including a first sliding shaft and a second sliding shaft, and the first sliding shaft and the second sliding shaft are respectively slidably connected to the sliding rod; the two first connecting rods are symmetrically arranged relative to the sliding rod; one end of the two first connecting rods are respectively connected to the two first local points of the airbag, and the two first local points of the airbag are symmetrical relative to the sliding rod; the other ends of the two first connecting rods are commonly connected to the first sliding shaft; the two second connecting rods are symmetrically arranged relative to the sliding rod, and are located above the first connecting rod; one end of the two second connecting rods are respectively connected to the two first local points of the airbag, and the other ends of the two second connecting rods are commonly connected to the second sliding shaft.

5. The oxygen absorption and exhaust device according to claim 2, characterized in that: The number of the airbag components is at least one.

6. The oxygen absorption and exhaust device according to claim 3, characterized in that: The film head cover comprises: an air inlet and outlet collar, a transparent film head cover and a neck cover; The transparent film-type head cover is connected to the upper part of the intake and exhaust collar, and the transparent film-type head cover can accommodate the head; The intake and exhaust assembly is connected to the balanced oxygen intake and exhaust box and the intake and exhaust collar, and the intake and exhaust collar can pass a fixed amount of gas into the transparent film-type head cover and discharge the exhaust gas from the transparent film-type head cover; The neck cover is connected to the lower part of the air intake and exhaust collar.

7. The oxygen absorption and exhaust device according to claim 6, characterized in that: The air inlet and outlet collar comprises: a collar body, a gas inlet port, a gas inlet pipeline, a gas exhaust port, a gas exhaust pipeline and an elastic structure; The gas inlet and the gas exhaust are respectively arranged on the inner ring of the collar body; and the gas inlet is connected to the first end of the gas inlet pipeline arranged inside the collar body, and the gas inlet of the gas discharge body is connected to the first end of the gas exhaust pipeline arranged inside the collar body; The second end of the gas intake pipeline and the second end of the gas exhaust pipeline are respectively connected to the intake and exhaust components; The elastic structure is arranged at the connection between the air intake and exhaust collar and the transparent film-type head cover.

8. The oxygen absorption and exhaust device according to claim 7, characterized in that: The intake and exhaust assembly comprises: a first intake interface, a first exhaust interface, a second exhaust interface, a second intake interface, a first connecting hose and a second connecting hose; The first air inlet interface is in communication with the second end of the gas inlet pipeline; The first exhaust interface is in communication with the second end of the gas exhaust pipeline; The second air inlet interface is communicated with the air intake valve port of the three-way valve; The second exhaust port is communicated with the air inlet port of the three-way valve; The first connecting hose is connected to the first air inlet interface and the second air inlet interface; The second connecting hose is connected to the first exhaust interface and the second exhaust interface.

9. The oxygen absorption and exhaust device according to claim 8, characterized in that: The second exhaust port and the second intake port are provided as at least one group.

10. A balanced oxygen intake and exhaust box, arranged in a decompression chamber, characterized in that: include: Box, air bag assembly, air supply pipeline, pressure reducing valve and flow control valve; The airbag assembly is disposed in the box; The air supply pipeline is connected to the airbag assembly and an external air supply device, and the air supply pipeline is used to transport oxygen and air provided by the external air supply device to the airbag assembly; The pressure reducing valve is connected to the air supply pipeline and is used to adjust the oxygen and air provided by the external air supply device to the required pressure in the pressure reducing chamber; The flow control valve is arranged at the outlet end of the airbag assembly, and is used to adjust the oxygen and air of the required pressure to the quantitative amount of gas required by the external film hood, so that the film hood contains a preset concentration of oxygen or an oxygen concentration that is the same as the oxygen concentration in the actual environment; the airbag assembly can also reuse the exhaust gas discharged from the film hood to generate the gas; the quantitative amount of gas includes a quantitative amount of oxygen and a quantitative amount of carbon dioxide.

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