Combination valve for oxygen generator and oxygen generator

Abstract

The utility model relates to the technical field of oxygen generators, in particular to a combination valve for an oxygen generator and the oxygen generator. The combination valve comprises a valve body; the first on-off control piece at least comprises a first air inlet, a second air inlet and an air outlet, and the first air inlet is opened when communicated with the air outlet; the second on-off control piece at least comprises an air port A, an air port B and an air port C, and the air port A and the air port C are opened when being communicated; one end of the oxygen delivery pipeline is communicated with the oxygen output end, and the other end is communicated with the gas port A; one end of the air inlet pipeline communicates with the compressed air output end, and the other end communicates with the first air inlet; one end of the air outlet pipeline is communicated with the air outlet, and the other end is communicated with the user side; one end of the transition pipeline is communicated with the gas port C, and the other end is communicated with the second gas inlet; one end of the detection pipeline is communicated with the air port B, and the other end is communicated with the pressure piece; the utility model further provides an oxygen generator using the combination valve. According to the invention, both oxygen generation and atomization are integrated on the combination valve, so that active control of two gas paths is realized, and miniaturization of the oxygen generator is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, in particular to a combined valve for oxygen concentrators and an oxygen concentrator. Background Art

[0002] Nebulizer inhalation therapy is an important and effective treatment method for respiratory diseases. It uses a nebulizer to atomize the drug solution into tiny particles. The drug enters the respiratory tract and lungs through inhalation, thereby achieving the purpose of painless, rapid and effective treatment. The commonly used nebulizer is a compressed nebulizer. Oxygen therapy improves the oxygen supply of patients by providing them with high-purity oxygen. The commonly used oxygen generator is a pulsed molecular sieve oxygen generator.

[0003] At present, traditional oxygen generators or compressed nebulizers only have simple oxygen production or nebulization functions. With the development of oxygen therapy, many oxygen therapy users have a portable molecular sieve oxygen generator at home, which is convenient for users to use oxygen at home or when going out. When oxygen therapy users also have nebulization needs, they usually need to purchase a compressed nebulizer for ease of use, which undoubtedly increases the financial burden of users. In addition, the two devices take up more space and are inconvenient to carry when going out.

[0004] Therefore, in order to solve this problem, some researchers have provided an oxygen generator with an atomization function. An atomization interface and an oxygen outlet interface are respectively arranged on the outer shell of the machine. The compressed gas generated by the compressor is divided into two gas transmission paths. One pipeline is connected to the oxygen production component to participate in oxygen production; the other pipeline is connected to the atomization interface. A plug is arranged at the atomization interface. When atomization is not required, the atomization gas path is blocked by inserting the plug into the atomization interface. When the user performs atomization, the plug is pulled out, and the atomization inhaler for introducing the medicine solution is connected to the atomization interface for use.

[0005] However, this solution brings new problems. Since the atomization gas circuit is directly connected to the atomization interface without valve control, passive control of the atomization gas circuit is formed. If the oxygen generator is moved violently or operated improperly, it is easy to cause the plug to be loosely sealed or fall off, resulting in gas overflow from the atomization gas circuit during oxygen production. The oxygen extracted by the oxygen generator cannot meet the user's oxygen demand.

[0006] Therefore, in today's increasingly pursued miniaturization, it is necessary to provide a device that can not only realize the active control of the atomization gas path, but also meet the demand for miniaturization of the oxygen generator. Utility Model Content

[0007] In view of the above deficiencies in the prior art, the utility model provides a combination valve for an oxygen concentrator and an oxygen concentrator, wherein an atomizing gas circuit and an oxygen making circuit are integrated into a valve body by arranging the combination valve, and a controller adjusts the gas delivery of the atomizing gas circuit or the oxygen making circuit by controlling the opening and closing of the first and second on-off control components, thereby realizing active control of the atomizing gas circuit and the oxygen making circuit, and reducing the setting of complicated pipelines and the overflow of gas by arranging a valve body, which is beneficial to improving the oxygen concentration of the oxygen concentrator, and the integration of multiple valve components and pipelines is beneficial to the miniaturization of the oxygen concentrator.

[0008] The technical solution adopted by the utility model to solve the technical problem is:

[0009] On the one hand, the utility model provides a combination valve for an oxygen concentrator, wherein the combination valve is connected to a controller by wire or wirelessly, and comprises:

[0010] valve body; and

[0011] A first on-off control member is fixedly connected or detachably connected to the valve body, and includes at least two air inlets and at least one air outlet, wherein the two air inlets are respectively a first air inlet and a second air inlet, and the two air inlets are not connected to the air outlet at the same time, and are used to deliver oxygen or compressed gas to the user end, wherein the first on-off control member is in an open state when the first air inlet is connected to the air outlet; and

[0012] a second on-off control member, fixedly connected or detachably connected to the valve body, comprising at least three vents, namely, port A, port B and port C, port A and port B are not connected to port C at the same time, wherein the second on-off control member is in an open state when port A is connected to port C; and

[0013] an oxygen delivery pipeline, which is arranged on and / or in the valve body, one end of which is connected to the oxygen output end, and the other end of which is connected to the gas port A; and

[0014] an air intake pipeline, arranged on and / or in the valve body, one end of which is connected to the compressed air output end, and the other end of which is connected to the first air inlet; and

[0015] An air outlet pipeline is arranged on and / or in the valve body, one end of which is connected to the air outlet and the other end of which is connected to the user end, and is used for outputting oxygen or compressed gas; and

[0016] a transition pipeline, disposed in the valve body, having one end connected to the air port C and the other end connected to the second air inlet; and

[0017] A detection pipeline is arranged on and / or in the valve body, one end of which is connected to the gas port B and the other end of which is not directly connected to the outside world; and

[0018] A pressure piece, arranged in the detection pipeline or in a pipeline connected to the detection pipeline, for collecting the air pressure in the detection pipeline;

[0019] The first on-off control element and the second on-off control element are connected to the controller by wire or wirelessly, and the controller controls the first and second on-off control elements to be turned on at different times.

[0020] Furthermore, the first on-off control component and the second on-off control component are both two-position three-way valves.

[0021] Furthermore, the first on-off control component is a normally closed electric valve, a normally closed solenoid valve, or a normally closed pneumatic valve, and the second on-off control component is a normally closed electric valve, a normally closed solenoid valve, or a normally closed pneumatic valve.

[0022] Furthermore, a pressure relief component is provided on the detection pipeline, or a pressure relief pipeline is provided on the detection pipeline, and the pressure relief pipeline is connected to the pressure relief component.

[0023] Furthermore, the pressure relief component is a safety valve, a relief valve, a pressure stabilizing valve, or a pressure reducing valve.

[0024] Furthermore, the oxygen supply pipeline includes a first oxygen supply pipeline and a second oxygen supply pipeline, the first ends of the first and second oxygen supply pipelines are connected to the oxygen output end, the second end of the first oxygen supply pipeline is connected to the gas port A, and the second end of the second oxygen supply pipeline is located on the first oxygen supply pipeline.

[0025] On the other hand, the utility model also provides an oxygen concentrator, including a compressor, a gas distribution valve assembly, an oxygen production assembly, a controller and the combination valve as described above, wherein the compressed gas output by the compressor is divided into two parts, one part of the gas is transported to the oxygen production assembly through the gas distribution valve assembly for oxygen production, and the oxygen is transported to the user end through the oxygen supply pipeline of the combination valve, and the other part of the compressed gas is transported to the user end through the air intake pipeline of the combination valve, and the controller is communicatively connected with the compressor, the gas distribution valve assembly, the oxygen production assembly and the combination valve respectively.

[0026] Furthermore, the oxygen production component includes an adsorption cylinder and a gas storage tank, the oxygen outlet of the adsorption cylinder is connected to the gas storage tank, the oxygen supply pipeline is arranged between the oxygen outlet of the adsorption cylinder and the gas storage tank, or the oxygen supply pipeline is connected to the gas storage tank, or the oxygen supply pipeline is connected to the oxygen outlet of the adsorption cylinder.

[0027] Further, the air intake pipeline is connected to the compressor, or the air intake pipeline is connected to the gas distribution valve assembly.

[0028] Furthermore, it also includes a pressure reducing valve and a flow valve, wherein the pressure reducing valve and the flow valve are arranged between the oxygen production component and the combination valve, and the controller is communicatively connected with the pressure reducing valve and the flow valve respectively.

[0029] The utility model has the following beneficial effects: the utility model integrates the oxygen production circuit and the atomization gas circuit in the same valve body by arranging a combination valve, arranges an oxygen supply pipeline to transport oxygen into the valve body, and an air intake pipeline to transport compressed gas into the valve body, and arranges first and second on-off control components to be fixedly connected or detachably connected to the valve body to realize the gas circuit transportation of oxygen or compressed gas; at the same time, a detection pipeline is also arranged in the valve body, and the user's breathing is detected by connecting the pressure component with the detection pipeline to ensure that oxygen is output when the user inhales, so as to realize the function of pulse oxygen production, save the energy consumption of the oxygen generator, and prolong the oxygen supply time; the active control of the oxygen production circuit and the atomization gas circuit is realized by arranging the combination valve, and the arrangement of the combination valve reduces the connection between the pipelines, reduces the overflow of the gas, and is conducive to improving the oxygen concentration of the oxygen generator; the arrangement of the combination valve saves the space inside the oxygen generator, makes the internal structure of the oxygen generator more compact, and is conducive to the miniaturization of the oxygen generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of a combined valve provided in one embodiment of the utility model;

[0031] Figure 2 yes Figure 1 A schematic cross-sectional structure diagram of ;

[0032] Figure 3 It is a schematic diagram of the cross-sectional structure of a valve body in one embodiment provided by the utility model;

[0033] Figure 4 It is a schematic cross-sectional structural diagram of a valve body in another embodiment provided by the utility model;

[0034] Figure 5 It is a structural schematic diagram of an oxygen concentrator provided in one embodiment of the utility model;

[0035] Figure 6 It is a structural schematic diagram of an oxygen concentrator provided by another embodiment of the utility model.

[0036] In the figure, 1, valve body 11, oxygen supply pipeline 111, first oxygen supply pipeline 112, second oxygen supply pipeline 12, air inlet pipeline 13, air outlet pipeline 14, transition pipeline 15, detection pipeline 16, pressure relief component 2, first on-off control component 21, first air inlet 22, second air inlet 23, air outlet 3, second on-off control component 31, air port A 32, air port B 33, air port C 100, combination valve 200, compressor 300, gas distribution valve assembly 400, oxygen production assembly 500, user end 600, controller. DETAILED DESCRIPTION

[0037] The utility model is further described below in conjunction with the accompanying drawings.

[0038] Example:

[0039] like Figures 1 to 4 As shown, the combined valve for oxygen concentrator described in the utility model is used in the oxygen concentrator, and the oxygen production circuit and the atomizing gas circuit are integrated together, which is convenient for active control of the oxygen production circuit and the atomizing gas circuit, reduces the complicated setting of the pipeline in the oxygen concentrator, is beneficial to reduce the overflow of gas, is beneficial to improve the oxygen concentration of the oxygen concentrator, and is also beneficial to the miniaturization of the oxygen concentrator.

[0040] The combination valve 100 is connected to the controller 600 by wire or wirelessly, and the combination valve 100 includes a valve body 1, a first on-off control component 2 and a second on-off control component 3, wherein the controller 600 is connected to the first and second on-off control components by wire or wirelessly, and the controller 600 controls the first and second on-off control components to be opened at different times.

[0041] A plurality of pipelines are arranged inside the valve body 1 and / or on the valve body 1 to facilitate the input and output of oxygen or compressed gas, thereby reducing the number of pipelines arranged between components and facilitating the reduction of gas spillage.

[0042] The first on-off control member 2 is fixedly connected or detachably connected to the valve body 1, for example, the first on-off control member 2 and the valve body 1 can be fixed together by bolts, or fixed together by riveting or welding, or by providing a cavity for accommodating the first on-off control member 2 in the valve body 1, and fixing the first on-off control member 2 in the cavity of the valve body 1 by gluing or threading. The first on-off control member 2 includes at least two air inlets and at least one air outlet 23, the two air inlets are respectively a first air inlet 21 and a second air inlet 22, and the first air inlet 21 and the second air inlet 22 are not connected to the air outlet 23 at the same time, that is, when the first air inlet 21 is connected to the air outlet 23, the second air inlet 22 is not connected to the air outlet 23, and vice versa. The first on-off control component 2 is actuated in response to a control signal of the controller 600, and selectively delivers oxygen or compressed gas to the user end 500, wherein the first on-off control component 2 is in an open state when the first air inlet 21 is connected to the air outlet 23, that is, the second air inlet 22 is connected to the air outlet 23 when the first on-off control component 2 is in a closed state.

[0043] The second on-off control member 3 is fixedly connected or detachably connected to the valve body 1, for example, the second on-off control member 3 and the valve body 1 can be fixed together by bolts, or fixed together by riveting or welding, or by providing a cavity for accommodating the second on-off control member 3 in the valve body 1, and fixing the second on-off control member 3 in the cavity of the valve body 1 by gluing or threading. The second on-off control member 3 includes at least three vents, namely, port A 31, port B 32, and port C 33. Port A 31 is not connected to port B 32, and port A 31 and port B 32 are not connected to port C 33 at the same time, that is, when port A 31 is connected to port C 33, port B 32 is not connected to port C 33, and vice versa. When the air port A 31 is connected to the air port C 33, the second on-off control element 3 is in an open state, that is, when the second on-off control element 3 is in a closed state, the air port B 32 is connected to the air port C 33.

[0044] One end of the oxygen supply pipeline 11 is connected to the oxygen output end, and the other end is connected to the gas port A 31 of the second on-off control component 3. The oxygen output end mentioned here can be set at the oxygen output end of the oxygen production component 400, and is used to transport the oxygen produced by the oxygen production component 400 to the user end 500 through the valve body 1. It can also be set at the gas outlet end of the component connected to the oxygen production component 400. For example, the oxygen output end of the oxygen production component 400 is connected to the oxygen supply pipeline 11 through a pressure reducing valve or a flow valve. At this time, the oxygen output end can also refer to the gas outlet end of the pressure reducing valve or the flow valve. The oxygen supply pipeline 11 can be set inside the valve body 1, or it can be set outside the valve body 1, or, as shown in FIG. Figures 1 to 3As shown, a part of the oxygen delivery pipeline 11 is arranged in the valve body 1, and another part extends outward to the outside of the valve body 1, and these two parts constitute a complete oxygen delivery pipeline 11. The oxygen delivery pipeline 11 can be connected to the oxygen output end through an external gas circuit, such as a rubber or silicone hose, or other types of pipelines.

[0045] The air inlet line 12 has one end connected to the compressed air output end and the other end connected to the first air inlet 21 of the first on-off control member 2. The compressed air output end can be arranged on the compressor 200 or on the gas distribution valve assembly 300 to input the compressed gas into the valve body 1. The air inlet line 12 can be arranged inside the valve body 1 or outside the valve body 1, or, as Figures 1 to 4 As shown, a part of the air intake pipeline 12 is arranged in the valve body 1, and another part extends outward to the outside of the valve body 1, and these two parts constitute a complete air intake pipeline 12. The air intake pipeline 12 can be connected to the compressed air output end through an external air circuit connection, such as a silicone or rubber hose, or other types of pipelines.

[0046] The outlet pipe 13 has one end connected to the outlet port 23 of the first on-off control member 2 and the other end connected to the user end 500 to output oxygen or compressed gas to the user end. The outlet pipe 13 can be arranged outside the valve body 1 or inside the valve body 1, or Figures 1 to 4 As shown, a portion of the air outlet pipeline 13 is disposed inside the valve body 1 , and another portion extends outward to the outside of the valve body 1 .

[0047] The transition pipeline 14 is arranged inside the valve body 1, one end of which is connected to the air port C 33 of the second on-off control component 3, and the other end is connected to the second air inlet 22 of the first on-off control component 2. When the controller 600 controls the first on-off control component 2 to be closed and the second on-off control component 3 to be opened, oxygen enters the oxygen delivery pipeline 11 from the oxygen production end and then enters the transition pipeline 14 through the connection between the air port A 31 and the air port C 33, and then is connected through the second air inlet 22 and the air outlet 23 to transport the oxygen from the air outlet pipeline 13 to the user end 500.

[0048] One end of the detection pipeline 15 is connected to the air port B 32 of the second on-off control member 3, and the other end is not directly connected to the outside. The detection pipeline 15 can be arranged inside the valve body 1, or outside the valve body 1, or can be, for example, Figures 1 to 4 As shown, one part is arranged inside the valve body 1 , and the other part extends outward to the outside of the valve body 1 .

[0049] It also includes a pressure piece for collecting the air pressure in the detection pipeline 15 and feeding back the air pressure value to the controller 600. The position of the pressure piece only needs to be able to collect the air pressure in the detection pipeline 15. In order to ensure the accuracy of the detection, the end of the detection pipeline 15 away from the second on-off control component 3 can be closed, and the pressure piece can be set in the detection pipeline 15, or in an external pipeline connected to the detection pipeline 15. At the same time, the external pipeline cannot be directly connected to the outside world. There are many types of pressure pieces, which can be differential pressure sensors or absolute pressure sensors.

[0050] The combination valve 100 can integrate the atomization gas circuit and the oxygen production circuit in one valve body 1. By switching the valve on and off of the first and second on and off control components through the controller 600, the atomization port of the compressed gas can be effectively prevented from leaking due to loose sealing, which is conducive to meeting the user's oxygen use and atomization needs. In addition, the present application integrates the atomization function and the oxygen output function by setting the combination valve 100, with a compact structure and reasonable layout, reducing the setting of pipelines between components and reducing the risk of gas leakage. At the same time, it saves the internal space of the oxygen generator, which is conducive to the miniaturization of the oxygen generator.

[0051] In order to meet the above functions, the first and second on-off control components are at least two-position three-way valves. Of course, if there are other pipelines that need to realize other functions, the first on-off control component 2 and / or the second on-off control component 3 can also be multi-position multi-way valves that are more than two-position three-way valves. In this embodiment, in order to make the structure of the first and second on-off control components more compact and to save costs, without adding other functions, the first on-off control component 2 and the second on-off control component 3 can both be two-position three-way valves.

[0052] In daily carrying and use, in order to reduce the energy consumption of the oxygen concentrator and extend the service life of the oxygen concentrator, the first and second on-off control components can be normally closed valves. There are many types of valves. The first and second on-off control components can be normally closed electric valves, normally closed solenoid valves or normally closed pneumatic valves, etc. The first and second on-off control components can be valves of the same type or valves of different types.

[0053] In one embodiment, in order to prevent the pressure piece from being damaged by high pressure, a pressure relief piece 16 is further provided on the detection pipeline 15, or, in another embodiment, a pressure relief pipeline is provided on the detection pipeline 15, and the pressure relief pipeline is connected to the pressure relief piece 16. If the gas connection between the combination valve 100 and the user end 500 is blocked when the user breathes oxygen, or the user end 500 is blocked by foreign matter or the pipeline is bent, the high pressure will be accumulated in the gas outlet pipeline 13, and when the controller 600 controls the first and second on-off control parts to be closed, the high pressure in the gas outlet pipeline 13 will be transmitted to the detection pipeline 15, and the pressure piece will be damaged due to the high pressure. However, when the detection pipeline 15 is connected to the pressure relief piece 16, the pressure relief piece 16 will release the high pressure in the detection pipeline 15, so that it flows out from the pressure relief port of the pressure relief piece 16, reducing the harm of the high pressure to the detection pipeline 15 and the pressure piece.

[0054] There are many types of pressure relief parts 16, which may be safety valves, overflow valves, pressure-stabilizing valves, or pressure-reducing valves, etc. As long as they can release the high pressure generated in the detection pipeline 15 and prevent the pressure parts from being damaged by the high pressure, they can be used.

[0055] In one embodiment, when the oxygen output end is provided with two oxygen outlets, or when the oxygen generator is provided with two oxygen output ends, Figure 4 As shown, the oxygen delivery pipeline 11 includes a first oxygen delivery pipeline 111 and a second oxygen delivery pipeline 112. The first ends of the first oxygen delivery pipeline 111 and the second oxygen delivery pipeline 112 are both connected to the oxygen output end. Here, the first and second oxygen delivery pipelines are respectively connected to the two oxygen outlets of the oxygen output end, or the first and second oxygen delivery pipelines are respectively connected to the two oxygen output ends. In this embodiment, the second end of the first oxygen delivery pipeline 111 is connected to the gas port A 31 of the second on-off control component 3, and the second end of the second oxygen delivery pipeline 112 is located on the first oxygen delivery pipeline 111. The oxygen entering from the first oxygen delivery pipeline 111 and the oxygen entering from the second oxygen delivery pipeline 112 are finally gathered at the second end of the first oxygen delivery pipeline 111 and then transported to the transition pipeline 14 through the second on-off control component 3; in another embodiment (not shown in the figure), the second end of the second oxygen delivery pipeline 112 is connected to the gas port A 31 of the second on-off control component 3. 31 are connected, the second end of the first oxygen supply pipeline 111 is located on the second oxygen supply pipeline 112, and the oxygen entering from the first ends of the first oxygen supply pipeline 111 and the second oxygen supply pipeline 112 is finally gathered at the second end of the second oxygen supply pipeline 112.

[0056] In a specific embodiment, the combination valve 100 includes a valve body 1, a first on-off control component 2 and a second on-off control component 3. The first and second on-off control components are both normally closed two-position three-way solenoid valves, and the first and second on-off control components are respectively threadedly connected to the valve body 1. The combination valve 100 is also provided with an oxygen supply pipeline 11, an air inlet pipeline 12, an air outlet pipeline 13, a transition pipeline 14 and a detection pipeline 15, and a pressure piece is provided at one end of the detection pipeline 15 for detecting the user's breathing state. When the user starts the oxygen production mode, the controller 600 controls the first and second on-off control components to close, so that the detection pipeline 15, the transition pipeline 14 and the outlet pipeline 13 are connected. At this time, the pressure component is connected to the user end 500, detects the user's breathing state, and feeds back to the controller 600. When the pressure component detects that the user inhales, the controller 600 controls the first valve control component 2 to close and the second valve control component 3 to open, so that oxygen is delivered to the user end through the oxygen delivery pipeline 11, the transition pipeline 14 and the outlet pipeline 13. After a period of execution, the controller 600 controls the first and second valve control components to close, and detects the user's breathing state through the pressure component again. If the user exhales, the oxygen production mode is not executed. When the user starts the atomization mode, the controller 600 controls the first on-off control component 2 to open and the second on-off control component 3 to close, so that the inlet pipeline 12 is connected to the outlet pipeline 13, which is used to deliver compressed gas to the user end 500.

[0057] The utility model also provides an oxygen concentrator, including a compressor 200, a gas distribution valve assembly 300, an oxygen production assembly 400, a controller 600 and the combination valve 100 as described above. The compressor 200 is used to output compressed gas, and the use of the compressed gas is divided into two parts. One part of the compressed gas is transported to the oxygen production assembly 400 through the gas distribution valve assembly 300 for oxygen production, and the oxygen produced by the oxygen production assembly 400 is transported to the user end 500 through the oxygen delivery pipeline 11 of the combination valve 100 for the user to breathe oxygen; the other part of the compressed gas is transported to the user end 500 through the air intake pipeline 12 of the combination valve 100, and the user can use it for atomization after connecting the atomizer inhaler for introducing the liquid medicine. The controller 600 is respectively connected to the compressor 200, the gas distribution valve assembly 300, the oxygen production assembly 400 and the combination valve 100 for communication.

[0058] In one embodiment, the oxygen production component 400 includes an adsorption cylinder and a gas storage tank. The adsorption cylinder contains an adsorbent for oxygen production. The gas storage tank is connected to the oxygen outlet of the adsorption cylinder and is used to store oxygen. The oxygen delivery pipeline 11 can be arranged between the oxygen outlet of the adsorption cylinder and the gas storage tank. In one embodiment, the oxygen delivery pipeline 11 includes a first oxygen delivery pipeline 111 and a second oxygen delivery pipeline 112. The first end of the first oxygen delivery pipeline 111 is connected to the oxygen outlet of the adsorption cylinder, and the first end of the second oxygen delivery pipeline 112 is connected to the gas storage tank. The oxygen released can be connected to the gas tank through the first and second oxygen supply pipelines; or, in another embodiment, the adsorption cylinder is connected to the gas tank through a tee, and the oxygen supply pipeline 11 is connected to the other end of the tee. The oxygen outlet of the adsorption cylinder can input oxygen into the oxygen supply pipeline 11 or into the gas tank, and the oxygen in the gas tank can also be transported to the oxygen supply pipeline 11 through the tee; in addition, the oxygen supply pipeline 11 can also be connected to the oxygen outlet of the adsorption cylinder, or the oxygen supply pipeline 11 can also be connected to the gas tank.

[0059] There are also many ways to connect the air intake pipe 12 to the compressed air output end. In one embodiment, Figure 5 As shown, the air inlet pipeline 12 can be connected to the compressor 200, and the compressor 200 is provided with two compressed air output ends, or the air outlet end of the compressor 200 is connected through a tee, one end of the tee is connected to the air inlet pipeline 12, and the other end is connected to the gas distribution valve assembly 300; or, in another embodiment, as Figure 6 As shown, the air inlet pipeline 12 can also be connected to the gas distribution valve assembly 300. The compressed gas output by the compressor 200 is first delivered to the gas distribution valve assembly 300. Two air outlet paths are arranged on the gas distribution valve assembly 300. One air outlet path is connected to the adsorption cylinder for oxygen production; the other air outlet path is connected to the air inlet pipeline 12 of the combination valve 100, and is used to deliver compressed gas to the user end 500 for atomization.

[0060] In order to meet the oxygen production needs of users, the oxygen concentrator is provided with a continuous oxygen production mode in addition to a pulse oxygen production mode and an atomization mode. In one embodiment, the oxygen concentrator further includes a pressure reducing valve and a flow valve, which are arranged between the oxygen production component 400 and the combination valve 100. Specifically, the air inlet end of the pressure reducing valve is connected to the oxygen outlet end of the oxygen production component 400, the air outlet end is connected to the air inlet end of the flow valve, and the air outlet end of the flow valve is connected to the oxygen supply pipeline 11 of the combination valve 100. The controller 600 is respectively connected to the pressure reducing valve and the flow valve for communication. The pressure reducing valve is adjusted to a suitable outlet pressure in response to the control signal of the controller 600, and the flow valve is adjusted to the oxygen flow delivered to the user in response to the control signal of the controller 600.

[0061] When the oxygen generator is in the continuous oxygen production mode, the controller 600 controls the first on-off control component 2 to be closed and the second on-off control component 3 to be opened, so as to deliver oxygen to the user end 500. At the same time, the controller 600 controls the flow valve and the pressure reducing valve to work, and the oxygen outlet end of the oxygen production component 400 is connected to the pressure reducing valve, and the inlet pressure is adjusted to a suitable outlet pressure through the pressure reducing valve to reduce the pressure fluctuation when the user breathes oxygen. Then, the pressure reducing valve is connected to the flow valve, and the oxygen is adjusted to a suitable oxygen outlet flow rate through the flow valve. Then, the outlet end of the flow valve outputs oxygen to the oxygen supply pipeline 11, and outputs it to the user end 500 through the transition pipeline 14 and the outlet pipeline 13 for user use.

[0062] When the oxygen generator is in the pulse oxygen production mode, the controller 600 controls the first and second on-off control components to be closed, so that the pressure component is connected to the user end 500 through the detection pipeline 15, the transition pipeline 14 and the air outlet pipeline 13, and controls the pressure reducing valve to be adjusted to open to the maximum, so that it does not have a pressure regulating effect, and temporarily controls the flow valve to be closed, so that oxygen will not be input into the combination valve 100 through the flow valve. When the pressure component detects that the user inhales, the controller 600 controls the second on-off control component 3 to be opened, and controls the flow valve to be opened to the maximum, so that oxygen is output through the oxygen outlet end of the oxygen production component 400, and then input into the oxygen supply pipeline 11 of the combination valve 100 after passing through the pressure reducing valve and the flow valve, and then output to the user end 500 through the transition pipeline 14 and the air outlet pipeline 13; when the pressure component detects that the user exhales, oxygen production is not carried out until the pressure component detects that the user inhales and then oxygen production is carried out.

[0063] When the oxygen generator is in the nebulization mode, the controller 600 controls the first valve control element 2 to open and the second valve control element 3 to close, and delivers the compressed gas from the air inlet pipeline 12 to the user end 500 through the air outlet pipeline 13, so that the user can connect the nebulizer inhaler for introducing the liquid medicine for nebulization treatment.

[0064] In a specific application scenario, in order to meet the dual needs of atomization and oxygen production by users, and to prevent leakage of compressed gas due to passive control of the atomization port from affecting the oxygen production effect of the oxygen concentrator, the present application provides an oxygen concentrator. In order to meet the needs of users for oxygen inhalation outside, the oxygen concentrator is provided with two functions, namely, a pulse oxygen production mode and an atomization mode, and includes a compressor 200, a gas distribution valve assembly 300, an oxygen production assembly 400, a controller 600 and a combination valve 100. The combination valve 100 integrates the atomization function and the pulse oxygen production function on a valve body 1. The controller 600 is respectively connected to the compressor 200, the gas distribution valve assembly 300, the oxygen production assembly 400 and the combination valve 100 by wire or wireless. The gas outlet end of the compressor 200 is respectively connected to the gas distribution valve assembly 300 and the air inlet pipeline 12 of the combination valve 100 through a three-way piece. The gas distribution valve assembly 300 is connected to the oxygen production assembly 400 to prepare oxygen, and the oxygen is delivered to the user end 500 through the combination valve 100 for the user to breathe oxygen. The compressed gas entering the air inlet pipeline 12 delivers the compressed gas to the user end 500 when the first on-off control component 2 is turned on.

[0065] When the user starts the pulse oxygen generation mode on the oxygen generator, the controller 600 controls the first and second on-off control components to close, so that the detection pipeline 15, the transition pipeline 14, the air outlet pipeline 13 and the user end 500 are connected, and the end of the detection pipeline 15 away from the second on-off control component 3 is connected to the pressure component, which is used to detect the user's breathing state and feed back to the controller 600. When the user is detected to be exhaling, the controller 600 issues a control instruction to keep the first and second on-off control components in a normally closed state, and the oxygen generation component 400 does not provide oxygen to the user end 500; when the pressure component detects that the user is inhaling, the controller 600 controls the second on-off control component 3 to open the air port A 31 and the air port C 32. 33 is connected to transport the oxygen in the oxygen delivery pipeline 11 from the oxygen outlet of the oxygen production component 400 to the transition pipeline 14. At this time, the first on-off control component 2 remains in a normally closed state, so that the second air inlet 22 is connected to the air outlet 23, and the oxygen in the transition pipeline 14 is transported to the air outlet pipeline 13, and then transported to the user end 500 through the air outlet pipeline 13. The user can connect the oxygen inhalation tube through the air outlet nozzle on the oxygen generator to inhale oxygen; at the same time, a pressure relief pipeline is also provided on the detection pipeline 15, and the pressure relief pipeline is connected to the pressure relief component 16. When the user end 500 or the pipeline between the combination valve 100 and the user end 500 is blocked, when the pressure component detects that the pressure in the detection pipeline 15 is too high, the pressure relief component 16 can release the high pressure in the detection pipeline 15 to prevent the pressure component from being damaged by the high pressure.

[0066] When the user starts the nebulization mode on the oxygen concentrator, the controller 600 controls the first on-off control component 2 to open so that the first air inlet 21 and the air outlet 23 are connected, and the compressed air enters the combination valve 100 from the air inlet pipeline 12 and is delivered to the user end 500 through the air outlet pipeline 13. The user performs nebulization treatment by connecting a nebulizer inhaler that introduces liquid medicine to the air outlet nozzle of the oxygen concentrator.

[0067] The above description is an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A combination valve for an oxygen concentrator, wherein the combination valve is connected to a controller by wire or wirelessly, characterized in that: include, valve body; and A first on-off control member is fixedly connected or detachably connected to the valve body, and includes at least two air inlets and at least one air outlet, wherein the two air inlets are respectively a first air inlet and a second air inlet, and the two air inlets are not connected to the air outlet at the same time, and are used to deliver oxygen or compressed gas to the user end, wherein the first on-off control member is in an open state when the first air inlet is connected to the air outlet; and a second on-off control member, fixedly connected or detachably connected to the valve body, comprising at least three vents, namely, port A, port B and port C, port A and port B are not connected to port C at the same time, wherein the second on-off control member is in an open state when port A is connected to port C; and an oxygen delivery pipeline, which is arranged on and / or in the valve body, one end of which is connected to the oxygen output end, and the other end of which is connected to the gas port A; and an air intake pipeline, arranged on and / or in the valve body, one end of which is connected to the compressed air output end, and the other end of which is connected to the first air inlet; and An air outlet pipeline is arranged on and / or in the valve body, one end of which is connected to the air outlet and the other end of which is connected to the user end, and is used for outputting oxygen or compressed gas; and a transition pipeline, disposed in the valve body, having one end connected to the air port C and the other end connected to the second air inlet; and A detection pipeline is arranged on and / or in the valve body, one end of which is connected to the gas port B and the other end of which is not directly connected to the outside world; and A pressure piece, arranged in the detection pipeline or in a pipeline connected to the detection pipeline, for collecting the air pressure in the detection pipeline; The first on-off control element and the second on-off control element are connected to the controller by wire or wirelessly, and the controller controls the first and second on-off control elements to be turned on at different times.

2. The combined valve for oxygen concentrator according to claim 1, characterized in that: The first on-off control component and the second on-off control component are both two-position three-way valves.

3. The combined valve for oxygen concentrator according to claim 2, characterized in that: The first on-off control component is a normally closed electric valve, a normally closed solenoid valve, or a normally closed pneumatic valve, and the second on-off control component is a normally closed electric valve, a normally closed solenoid valve, or a normally closed pneumatic valve.

4. The combined valve for oxygen concentrator according to claim 1, characterized in that: The detection pipeline is also provided with a pressure relief component, or the detection pipeline is provided with a pressure relief pipeline, and the pressure relief pipeline is connected with the pressure relief component.

5. The combined valve for oxygen concentrator according to claim 4, characterized in that: The pressure relief component is a safety valve, a relief valve, a pressure stabilizing valve or a pressure reducing valve.

6. The combined valve for oxygen concentrator according to claim 1 or 4, characterized in that: The oxygen supply pipeline includes a first oxygen supply pipeline and a second oxygen supply pipeline. The first ends of the first and second oxygen supply pipelines are both connected to the oxygen output end, the second end of the first oxygen supply pipeline is connected to the gas port A, and the second end of the second oxygen supply pipeline is located on the first oxygen supply pipeline.

7. An oxygen concentrator, characterized in that: It comprises a compressor, a gas distribution valve assembly, an oxygen production assembly, a controller and a combination valve as described in any one of claims 1 to 6, wherein the compressed gas output by the compressor is divided into two parts, one part of the gas is transported to the oxygen production assembly through the gas distribution valve assembly for oxygen production, and the oxygen is transported to the user end through the oxygen delivery pipeline of the combination valve, and the other part of the compressed gas is transported to the user end through the air intake pipeline of the combination valve, and the controller is communicatively connected with the compressor, the gas distribution valve assembly, the oxygen production assembly and the combination valve respectively.

8. The oxygen concentrator according to claim 7, characterized in that: The oxygen production component includes an adsorption cylinder and a gas storage tank, the oxygen outlet of the adsorption cylinder is connected to the gas storage tank, the oxygen supply pipeline is arranged between the oxygen outlet of the adsorption cylinder and the gas storage tank, or the oxygen supply pipeline is connected to the gas storage tank, or the oxygen supply pipeline is connected to the oxygen outlet of the adsorption cylinder.

9. The oxygen concentrator according to claim 8, characterized in that: The air intake pipeline is connected to the compressor, or the air intake pipeline is connected to the gas distribution valve assembly.

10. The oxygen concentrator according to claim 7, characterized in that: It also includes a pressure reducing valve and a flow valve, wherein the pressure reducing valve and the flow valve are arranged between the oxygen production component and the combination valve, and the controller is communicatively connected with the pressure reducing valve and the flow valve respectively.

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