Gas distribution components, oxygen generation mechanism and medical equipment

Abstract

This application relates to a gas distribution assembly, an oxygen generating mechanism, and a medical device. The gas distribution assembly includes: a first gas distribution plate, a second gas distribution plate, and a third gas distribution plate stacked together. The first and second gas distribution plates form a first gas passage and a second gas passage, respectively; the third gas distribution plate forms a third gas passage with the second gas distribution plate, used for oxygen storage or venting. When oxygen is introduced into the first gas passage, the oxygen washes over the adsorption oxygen generating component corresponding to the second gas passage; when oxygen is introduced into the second gas passage, the oxygen washes over the adsorption oxygen generating component corresponding to the first gas passage. This gas path configuration meets the needs of adsorption oxygen generation and waste gas treatment. It has fewer components, reducing the requirements for component use and assembly, resulting in high space utilization, better maintainability and testability. It effectively solves the problems of low space utilization and poor maintainability in existing oxygen generating mechanisms that use multiple pipes and connectors for gas distribution.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oxygen production equipment parts, and particularly relates to an air path distribution assembly, an oxygen production mechanism and medical equipment. BACKGROUND

[0002] With the gradual development of medical technology, the equipment cooperating with medical operations is also gradually updated. Oxygen inhalation, as a commonly used clinical quality method, can correct hypoxia, improve the level of arterial oxygen partial pressure and blood oxygen saturation, and is relatively widely used.

[0003] The adsorption method is commonly used in the oxygen production mechanism, air is used as raw material for separation, oxygen is produced, and is transported to an oxygen storage bottle or a user through a gas pipeline. In the prior art, after oxygen is prepared, a plurality of pipes, joints and valve bodies are needed to realize the connection and control of the air path, and the installation of the plurality of pipes and joints needs a certain angle and space, the connection points are relatively many, and there are problems of low space utilization and poor maintainability. SUMMARY

[0004] The present application provides an air path distribution assembly, an oxygen production mechanism and medical equipment to solve the problem of low space utilization and poor maintainability in the prior art that a plurality of pipes and joints are used for air path distribution in the oxygen production mechanism.

[0005] In a first aspect, the present application provides an air path distribution assembly in communication with two adsorption oxygen production assemblies of an oxygen production mechanism, comprising: a first air path plate, a second air path plate and a third air path plate stacked, a first air path and a second air path are formed between the first air path plate and the second air path plate, and the first air path and the second air path are in communication with the two adsorption oxygen production assemblies respectively; a third air path is formed between the third air path plate and the second air path plate, the third air path is in communication with the first air path and the second air path respectively, and an output end of the third air path is used for storing oxygen or discharging oxygen; a distribution air path is in communication with the first air path and the second air path respectively, when oxygen is introduced into the first air path, the oxygen flushes the adsorption oxygen production assembly corresponding to the second air path through the distribution air path, and when oxygen is introduced into the second air path, the oxygen flushes the adsorption oxygen production assembly corresponding to the first air path through the distribution air path.

[0006] According to some embodiments of the present application, a first one-way valve is arranged between the first air path and the third air path, a second one-way valve is arranged between the second air path and the third air path, and the output end of the distribution air path is in communication with the input end of the first one-way valve and the input end of the second one-way valve respectively.

[0007] According to some embodiments of the present application, the input end of the distribution air path is in communication with the third air path through a first control valve.

[0008] According to some embodiments of the present application, the distribution gas path is provided with two output ports, each of which is provided with a third one-way valve and a fourth one-way valve, the output end of the third one-way valve is communicated with the first gas path, and the fourth one-way valve is communicated with the second gas path.

[0009] According to some embodiments of the present application, a second control valve is arranged between the first gas path and the second gas path for direct communication.

[0010] According to some embodiments of the present application, the gas path distribution assembly comprises a valve seat connected to the side of the third gas path plate away from the second gas path plate, and the first control valve and the second control valve are fixed in the valve seat.

[0011] According to some embodiments of the present application, the inlet end of the first gas path and the inlet end of the second gas path are arranged on the side of the second gas path plate away from the first gas path plate, and the inlet end of the first gas path and the inlet end of the second gas path are away from the valve seat, and the two adsorption oxygen production assemblies are located in the space formed by the valve seat and the second gas path plate.

[0012] According to some embodiments of the present application, a first sealing member is arranged between the first gas path plate and the second gas path plate, which is matched with the first gas path and the second gas path, and a second sealing member is arranged between the second gas path plate and the third gas path plate, which is matched with the third gas path.

[0013] According to some embodiments of the present application, the third gas path comprises an oxygen storage gas path and an oxygen discharge gas path, the oxygen storage gas path is communicated with the first gas path and the second gas path respectively, and the oxygen discharge gas path is communicated with the oxygen storage gas path through a third control valve.

[0014] In the second aspect, the present application provides an oxygen production mechanism, which comprises a gas path distribution assembly and two adsorption oxygen production assemblies, the gas path distribution assembly is the above-mentioned gas path distribution assembly, and the first gas path and the second gas path of the gas path distribution assembly are communicated with the two adsorption oxygen production assemblies respectively.

[0015] In the third aspect, the present application provides a medical device, which comprises the above-mentioned oxygen production mechanism.

[0016] Compared with the prior art, the above technical solutions provided by the embodiments of the present application have the following advantages:

[0017] The embodiment of the application provides a gas path distribution assembly, an oxygen production mechanism and medical equipment, wherein the gas path distribution assembly comprises: a first gas path plate, a second gas path plate and a third gas path plate which are stacked, a first gas path and a second gas path are formed between the first gas path plate and the second gas path plate, and the first gas path and the second gas path are communicated with two adsorption oxygen production assemblies respectively; a third gas path is formed between the third gas path plate and the second gas path plate, the third gas path is communicated with the first gas path and the second gas path respectively, and an output end of the third gas path is used for storing oxygen or discharging oxygen; a distribution gas path is communicated with the first gas path and the second gas path respectively, when oxygen is introduced into the first gas path, the oxygen flushes the adsorption oxygen production assembly corresponding to the second gas path through the distribution gas path, and when oxygen is introduced into the second gas path, the oxygen flushes the adsorption oxygen production assembly corresponding to the first gas path through the distribution gas path. The gas path formed by such a setting can meet the requirements of adsorption oxygen production and waste gas treatment, does not need to be connected by pipe materials, has fewer components, reduces the use and assembly requirements of components, has high space utilization, and is better in maintainability and detectability. The application effectively solves the problems of low space utilization and poor maintainability in the prior art that multiple pipe materials and joints are used for gas path distribution in the oxygen production mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative labor.

[0020] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding thereto, and these exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings do not constitute a proportional limitation.

[0021] Figure 1 A front view schematic diagram of a gas path distribution assembly provided by the embodiment of the application is shown;

[0022] Figure 2 A front view schematic diagram of a gas path distribution assembly provided by the embodiment of the application is shown; Figure 1 A sectional view schematic diagram of the gas path distribution assembly along the A-A direction is shown;

[0023] Figure 3 A front view schematic diagram of a gas path distribution assembly provided by the embodiment of the application is shown; Figure 1 An exploded schematic diagram of the gas path distribution assembly is shown;

[0024] Figure 4 An exploded schematic diagram of the gas path distribution assembly is shown;Figure 1 Schematic diagram of the principle of the air path distribution assembly

[0025] Figure 5 Schematic diagram of the principle of the air path distribution assembly Figure 1 Schematic diagram of the structure of the first air path and the second air path of the air path distribution assembly

[0026] Figure 6 Schematic diagram of the structure of the distribution air path and the third air path of the air path distribution assembly Figure 1 Schematic diagram of the structure of the distribution air path and the third air path of the air path distribution assembly

[0027] In the above drawings, the following reference signs are used:

[0028] 10, first air path plate; 11, first air path; 12, second air path; 13, first one-way valve; 14, second one-way valve; 15, cover body; 20, second air path plate; 21, air inlet head; 30, third air path plate; 31, third air path; 311, oxygen storage air path; 312, oxygen discharge air path; 313, third control valve; 314, oxygen storage structure; 32, mounting hole; 40, distribution air path; 41, first control valve; 42, third one-way valve; 43, fourth one-way valve; 50, second control valve; 60, valve seat; 71, first sealing element; 72, second sealing element. DETAILED DESCRIPTION

[0029] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0030] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, reference numerals and / or letters can be repeated in different examples of the present application. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0031] For ease of description, spatial relative terms can be used herein to describe the positional relationship or movement of one element or feature relative to another element or feature as shown in the drawings, such as "inner", "outer", "inward", "outward", "lower", "below", "upper", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientations depicted in the drawings. For example, if the device in the drawings is turned over or reversed, or the orientation of the device is changed, the indicative directions will also change accordingly, for example: the element described as "below" or "under" other elements or features will be subsequently oriented as "above" or "above" other elements or features. Therefore, the example term "below" can include both upward and downward positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are interpreted accordingly.

[0032] As Figures 1 to 6 The application provides a gas distribution assembly, which is communicated with two adsorption oxygen production assemblies of an oxygen production mechanism, comprising: superimposed first gas path plate 10, second gas path plate 20 and third gas path plate 30, first gas path 11 and second gas path 12 are formed between first gas path plate 10 and second gas path plate 20, and first gas path 11 and second gas path 12 are communicated with two adsorption oxygen production assemblies respectively; third gas path 31 is formed between third gas path plate 30 and second gas path plate 20, and third gas path 31 is communicated with first gas path 11 and second gas path 12 respectively, and the output end of third gas path 31 is used for storing oxygen or discharging oxygen; distribution gas path 40 is communicated with first gas path 11 and second gas path 12 respectively, when oxygen is introduced into first gas path 11, oxygen flushes the corresponding adsorption oxygen production assembly of second gas path 12 through distribution gas path 40, and when oxygen is introduced into second gas path 12, oxygen flushes the corresponding adsorption oxygen production assembly of first gas path 11 through distribution gas path 40. The gas path formed by such arrangement can meet the requirements of adsorption oxygen production and waste gas treatment, does not need pipe material for connection treatment, has fewer parts, reduces the use and assembly requirements of parts, has high space utilization, and has better maintainability and detectability. The application effectively solves the problems of low space utilization and poor maintainability in the prior art that multiple pipe materials and joints are used for gas distribution inside the oxygen production mechanism.

[0033] It should be noted that the flow path after oxygen preparation is the most important for adsorption oxygen production. The existing technology commonly uses gas guide hose, gas pipe joint, multi-way pipe joint, battery valve and other accessories to connect the gas path. The gas path finally needs to store a part in the oxygen storage device and provide a part to the outside. The internal airtightness requirement is relatively high. Once leakage occurs, it is easy to cause insufficient oxygen supply and mix part of air, affecting the oxygen content. In the commonly used technology, the multiple connected pipelines and joints are easy to be damaged and leaked in actual application, not only increasing the flow resistance of the prepared oxygen, but also causing the prepared oxygen to be unable to be discharged in time and effectively, and increasing the workload of assembly and manufacturing. The messy pipe materials and joints also affect the convenience of gas path maintenance and detection. The gas path in the present application generally refers to the channel and passage through which gas can pass. The channel or passage is not limited to only passing gas, but also liquid or other flowable fluid.

[0034] Specifically, by applying the technical solution of the embodiment, the first gas path 11 and the second gas path 12 can be alternately supplied to facilitate the two adsorption oxygen production assemblies of the oxygen production mechanism to alternately produce oxygen, one to remove impurity gas, which can ensure that the oxygen concentration meeting the requirements after passing through the gas path distribution assembly. The distribution gas path 40 is arranged to control the flow direction of the gas flow in the gas path distribution assembly, so as to supply oxygen by the first gas path 11 and flush the corresponding adsorption oxygen production assembly by the second gas path 12, or supply oxygen by the second gas path 12 and flush the corresponding adsorption oxygen production assembly by the first gas path 11. Such a setting has higher integration, more compact structure, and lower assembly difficulty, and is more suitable for the manufacturing of the gas path distribution assembly.

[0035] It should be noted that no pipe material and joint is used in the embodiment, and each gas path is formed by cooperating a plurality of gas path plates. Therefore, the pipe connection and joint restrictions do not need to be considered, the structure can be more compact, the occupied space is smaller, and it is more suitable for portable oxygen production mechanism, which is beneficial to the transfer and carrying of the user.

[0036] As shown in Figures 4 to 6 In the technical solution of the embodiment, a first one-way valve 13 is arranged between the first gas path 11 and the third gas path 31, a second one-way valve 14 is arranged between the second gas path 12 and the third gas path 31, and the output end of the distribution gas path 40 is in communication with the input end of the first one-way valve 13 and the input end of the second one-way valve 14. The first one-way valve 13 and the second one-way valve 14 are arranged for directional delivery of oxygen to avoid backflow of oxygen, which causes impurity gas to enter the gas path and affect the purity of the oxygen delivered by the gas path.

[0037] It should be noted that the first one-way valve 13 and the second one-way valve 14 are both one-way valve pieces, which are of a rotary body structure, and the cross section of the rotary body structure in any plane along the axis of the rotary body structure is a T-shaped structure, that is, specifically including a stand, a bottom plate connected to one end of the stand, and a limiting plate arranged at an intermediate position of the stand, the length of the stand between the limiting plate and the bottom plate is greater than the distance between the side of the second gas path plate 20 facing the first gas path plate 10 and the side of the third gas path plate 30 facing the bottom plate, and without oxygen access, the bottom plate is attached to the side of the second gas path plate 20 away from the first gas path plate 10, forming a seal, when oxygen is accessed, under the action of gas pressure, the bottom plate is pushed away from the second gas path plate 20, forming an opening, and then transporting oxygen through the gap between the stand and the corresponding perforation arranged on the second gas path plate. Further, the trigger gas pressure of the first one-way valve 13 and the second one-way valve 14 is the same.

[0038] Further, as shown in Figure 4 In the technical solution of the embodiment, the input end of the distribution gas path 40 is communicated with the third gas path 31 through the first control valve 41. The first control valve 41 is provided for on-off control of the distribution gas path 40, which realizes direct oxygen supply when rapid oxygen supply is needed, removes the oxygen amount needed for flushing another adsorption oxygen generating assembly, and quickly achieves the purpose of oxygen storage and supply. This arrangement can also quickly increase and average the oxygen pressure in the overall gas path, reduce the start-up time, and have better use effect. Further, the first control valve 41 is an electromagnetic valve, and a control assembly can be arranged in the overall oxygen generating mechanism to monitor the oxygen pressure in the gas path and control the on-off of the first control valve 41 in real time.

[0039] Specifically, in the technical solution of the embodiment, the first control valve 41 is a two-position two-way electromagnetic valve, which can adopt a direct-acting electromagnetic valve. The specific principle is that when power is turned on, the electromagnetic coil generates electromagnetic force to make the valve core move, the passages at both ends of the valve core are communicated, thereby opening the distribution gas path 40, and when power is turned off, the electromagnetic force disappears, and the spring pushes the valve core back to the reset position, and the passages at both ends are isolated, that is, the valve is closed.

[0040] As shown in Figure 4 and Figure 6 In the technical solution of the embodiment, the distribution gas path 40 is provided with two output ports, and the two output ports are respectively provided with a third one-way valve 42 and a fourth one-way valve 43. The output end of the third one-way valve 42 is communicated with the first gas path 11, and the fourth one-way valve 43 is communicated with the second gas path 12. The third one-way valve 42 and the fourth one-way valve 43 are mainly arranged to direct the transport of oxygen for flushing and cleaning, and also avoid impurity gas flow entering the third gas path 31 through the adsorption oxygen generating assembly without generating oxygen.

[0041] It should be noted that the trigger air pressure of the third one-way valve 42 and the fourth one-way valve 43 is less than or equal to the trigger air pressure of the first one-way valve 13 and the second one-way valve 14. Such a setting makes the first gas path 11 or the second gas path 12 into which oxygen is introduced itself have a relative air pressure, so that the corresponding third one-way valve 42 or fourth one-way valve 43 will not be triggered directly after the oxygen enters the distribution gas path 40, that is, the distribution gas path 40 will only open one one-way valve, so that the oxygen for flushing and cleaning is directed to achieve the purpose of cleaning and brushing the corresponding adsorption oxygen generating assembly.

[0042] Specifically, the third one-way valve 42 and the fourth one-way valve 43 are both one-way valve sheets, and the specific structure of the one-way valve sheet is similar to that of the first one-way valve 13 and the second one-way valve 14, which will not be described here. Taking the third one-way valve 42 as an example, the length of the column between the limiting plate and the bottom plate is greater than the distance between the side of the second gas path plate 20 facing the third gas path plate 30 and the side of the first gas path plate 10 facing the bottom plate, and in the absence of oxygen access, the bottom plate and the side of the second gas path plate 20 away from the third gas path plate 30 are attached to form a seal. When oxygen is accessed, the bottom plate is pushed away from the second gas path plate 20 under the action of air pressure to form an opening, and then transports oxygen through the gap between the column and the corresponding perforation provided on the second gas path plate.

[0043] Further, as shown in Figure 6 In the technical solution of the embodiment, the distribution gas path 40 is formed between the third gas path plate 30 and the second gas path plate 20. Such a setting structure is concentrated, avoids more material assembly, has higher integration, and has higher space utilization.

[0044] It should be noted that in one specific embodiment, the main part of the second gas path plate 20 is a planar plate body, the first gas path 11 and the second gas path 12 are grooves on the first gas path plate 10, and the second gas path plate 20 is not provided with grooves, that is, the side of the second gas path plate 20 directly forms with the grooves on the first gas path plate 10. The processing requirement of the second gas path plate 20 is reduced, which is beneficial to production and assembly and can be used as an assembly reference. Further, the third gas path 31 and the distribution gas path 40 are grooves on the third gas path plate 30, which directly form the gas path with the side of the second gas path plate 20 away from the first gas path plate 10.

[0045] As shown in Figure 4 and Figure 5As shown, in the technical solution of this embodiment, a second control valve 50 for direct connection is provided between the first gas path 11 and the second gas path 12. The second control valve 50 is provided to control the entire gas path after the oxygen storage and oxygen supply links are balanced and stable. Specifically, for example, when the first gas path 11 supplies oxygen and the second gas path 12 flushes the corresponding adsorption oxygen generating component, the first gas path 11 continuously supplies oxygen until the second gas path 12 completes flushing. At this time, the gas path distribution component can close the flushing port of the second gas path 12. At this time, the adsorption oxygen generating component corresponding to the second gas path 12 has completed the preparation for adsorption oxygen generation, and there is a balanced amount of oxygen in the entire gas path. By opening and closing the second control valve 50, the amount of oxygen in the first gas path 11 and the second gas path 12 reaches a balance. Then, the second control valve 50 is closed, the inlet of the first gas path 11 is closed, and the inlet of the second gas path 12 is opened. The adsorption oxygen generating component in the second gas path 12 begins to produce oxygen and enters the second gas path 12, maintaining the output and storage of the third gas path 31. At this time, the first control valve 41 and the second control valve 50 are opened in sequence, so that the original oxygen in the first gas path 11 directly enters its corresponding adsorption oxygen generating component for flushing, thereby preventing the residual impurity gas in the adsorption oxygen generating component corresponding to the first gas path 11 from entering the overall gas path.

[0046] like Figures 1 to 3 , Figures 5 to 6 As shown, in this embodiment, the gas distribution assembly includes a valve seat 60. The valve seat 60 is connected to the side of the third gas path plate 30 away from the second gas path plate 20, and the first control valve 41 and the second control valve 50 are fixed inside the valve seat 60. The valve seat 60 is provided to arrange the connection passages connecting the gas paths, and cooperates with each control valve through the connection passages to realize the opening and closing of each gas path. Specifically, as shown... Figure 2 Taking the second control valve 50 as an example, two connecting passages and a main passage are formed in the valve seat 60. Both connecting passages are connected to the main passage. The two connecting passages are connected to the first air passage 11 and the second air passage 12 respectively. The valve core of the second control valve 50 is slidably disposed in the main passage. By sliding the valve core of the second control valve 50, the two connecting passages can be connected or disconnected.

[0047] like Figures 1 to 3 As shown, in this embodiment, the inlet ends of the first gas path 11 and the second gas path 12 are both located on the side of the second gas path plate 20 away from the first gas path plate 10, and both inlet ends of the first gas path 11 and the second gas path 12 are separate from the valve seat 60. The two adsorption oxygen generating components are located within the space formed by the valve seat 60 and the second gas path plate 20. This arrangement makes the installation position of the adsorption oxygen generating components more compact, which is more conducive to space utilization and suitable for portable oxygen generating mechanisms.

[0048] In a specific embodiment, two air inlet heads 21 are arranged on the second air path plate 20. Since the adsorption oxygen production assembly is arranged in the space formed by the second air path plate 20 and the valve seat 60, the air inlet position is located on the side of the second air path plate 20 away from the first air path plate 10. In order to save space and improve integration, two air inlet heads 21 are arranged so that the generated oxygen or oxygen for flushing can enter the corresponding position through the air inlet head 21. The bottom of the air inlet head 21 can be detachably connected to the end of the adsorption oxygen production assembly, which can be a threaded connection. The air inlet head 21 has a relatively thick thickness along the thickness direction of the second air path plate 20, and forms a protrusion on the side facing the first air path plate 10. In order to cooperate with the protrusion, the first air path plate 10 is provided with a cover 15 at the corresponding position. The cover 15 can form a buffer area around the protrusion, so that the oxygen has a buffering effect after entering, and the subsequent opening of the one-way valve is more stable in terms of oxygen amount and pressure. Such a design avoids the direct impact of the kinetic energy carried by the oxygen on the opening of the one-way valve, which can cause instability in subsequent oxygen supply operations. The control and monitoring of oxygen content have good use effect, and at the same time, it also avoids the situation that some impurities are not flushed due to excessive oxygen flow rate at the flushing position, which can cause impurity gas and reduce the oxygen content. It should be noted that the space formed by the cover 15 can be connected to the first air path 11 and the air inlet head 21, which can be approximately in the shape of a spoon.

[0049] As shown in Figure 3 In the technical solution of the present embodiment, a first sealing member 71 is arranged between the first air path plate 10 and the second air path plate 20, and the first sealing member 71 is adapted to the first air path 11 and the second air path 12. A second sealing member 72 is arranged between the second air path plate 20 and the third air path plate 30, and the second sealing member 72 is adapted to the third air path 31. The first sealing member 71 and the second sealing member 72 are arranged to form a sealing effect after the air path. The first sealing member 71 and the second sealing member 72 are adapted to the first air path 11 and the second air path 12, and the second sealing member 72 is adapted to the third air path 31, which also plays a role in separation. The whole sealing avoids the possibility of leakage communication between the air paths, which can cause the failure of the flushing function or the closed adjustment function.

[0050] It should be noted that, in a specific embodiment, when the third air passage 31 and the distribution air passage 40 are grooves on the third air passage plate 30, and the second air passage plate 20 forms an air passage directly on the side away from the first air passage plate 10, the shape of the second sealing member 72 is adapted to the third air passage 31 and the distribution air passage 40 respectively. Furthermore, the third gas circuit board 30 has multiple mounting holes 32 on the side away from the second gas circuit board 20. The multiple mounting holes 32 correspond to the installation of multiple control valves. Specifically, the first control valve 41 has two passages on the valve seat 60 that pass through the mounting holes 32 and connect to the through holes on the second gas circuit board 20, so that oxygen can enter the distribution gas circuit 40 from the third gas circuit 31. The second control valve 50 has two passages on the valve seat 60 that pass through the mounting holes 32 and the through holes on the second gas circuit board 20, respectively, and connect to the first gas circuit 11 and the second gas circuit 12. The third control valve 313 has two passages on the valve seat 60 that pass through the mounting holes 32 and connect to the oxygen storage circuit 311 and the oxygen exhaust circuit 312, respectively.

[0051] like Figures 1 to 6 As shown, in the technical solution of this embodiment, the third gas path 31 includes an oxygen storage path 311 and an oxygen exhaust path 312. The oxygen storage path 311 is connected to the first gas path 11 and the second gas path 12, respectively, and the oxygen exhaust path 312 is connected to the oxygen storage path 311 through a third control valve 313. This arrangement can meet the oxygen storage requirements of the oxygen storage structure 314, play an adjustment and supplement role in the subsequent oxygen supply process, stabilize the oxygen exhaust pressure when supplying oxygen and achieving uniform oxygen supply, and, in addition, control the switching between the functions of the first gas path 11 and the second gas path 12 through multiple control valves, allowing the oxygen storage structure 314 to supply oxygen independently. The oxygen storage structure 314 can specifically be a dedicated tank with a pressure machine.

[0052] In one alternative embodiment, the gas distribution component is mainly used in the adsorption-based oxygen generation industry. Since adsorption-based oxygen generation requires a certain gas pressure to maintain a specific oxygen concentration, and nitrogen and other waste gases typically remain in the adsorption-based oxygen generation component after adsorption, maintaining the oxygen generation pressure and removing waste gases are achieved through gas path control. Specifically, oxygen enters the gas distribution component through the inlet 21 located on the second gas path plate 20. Under suitable pressure and oxygen concentration, the oxygen first enters the oxygen storage structure 314 through the third gas path 31, storing a certain amount of oxygen. The remaining portion is discharged to the user through the exhaust gas path 312, while the other portion returns to another adsorption-based oxygen generation component through the distribution gas path 40 to flush out residual waste gas and remove it. (See schematic diagram). Figure 4 The principle of the entire switching process is illustrated; the entire gas path switching and control is achieved through the on / off switching of multiple electromagnetic control valves.

[0053] In the alternative embodiment, the main components include: the first gas path plate 10, the first one-way valve 13, the second one-way valve 14, the second gas path plate 20, the third gas path plate 30, the third control valve 313, the oxygen storage structure 314, the distribution gas path 40, the first control valve 41, the third one-way valve 42, the fourth one-way valve 43, the second control valve 50, the valve seat 60, the first sealing element 71, and the second sealing element 72.

[0054] When the oxygen starts to enter the first gas path 11, each control valve is in the off state. After the oxygen passes through the first gas path 11 formed by the first gas path plate 10 and the second gas path plate 20 pressing the first sealing element 71, the first one-way valve 13 is opened, and the oxygen enters the third gas path 31 formed by the second gas path plate 20 and the third gas path plate 30 pressing the second sealing element 72. The oxygen passes through the oxygen storage path 311 of the third gas path 31 and then enters the oxygen storage structure 314. When the oxygen in the oxygen storage structure 314 reaches a certain pressure, the third control valve 313 is turned on, and the oxygen flow passes through the oxygen discharge path 312 of the third gas path 31 to reach the exhaust outlet for the user to use the oxygen. Then, the third control valve 313 is turned off, and the first gas path 11 continues to supply oxygen, and the pressure in the oxygen storage structure 314 rises again.

[0055] When the gas pressure in the gas path reaches a set value, the first control valve 41 is turned on, and the compressed oxygen passes through the distribution gas path 40 and opens the fourth one-way valve 43 to enter the second gas path 12, flushing the waste gas of the oxygen generator remaining in the other adsorption oxygen generator assembly corresponding to the second gas path 12. When the waste gas of the adsorption oxygen generator assembly is discharged, the gas pressure in the flushing part does not reach the set value due to the set value of the gas pressure in the rear section of the first one-way valve 13 and the third one-way valve 42, and the gas flow cannot flow back.

[0056] After the waste gas is discharged, the adsorption oxygen generator assembly of the first gas path 11 continues to supply oxygen, and the gas path is filled with oxygen. The second control valve 50 is turned on, and the gas pressure in the first gas path 11 and the second gas path 12 gradually becomes the same. After the second control valve 50 is turned off, the first gas path 11 is disconnected from the corresponding adsorption oxygen generator assembly, and the second gas path 12 is connected to the adsorption oxygen generator assembly. Then, the second cycle starts, i.e., the adsorption oxygen generator assembly corresponding to the second gas path 12 starts to generate oxygen, and the adsorption oxygen generator assembly corresponding to the first gas path 11 discharges waste gas. This process is repeated to provide high-concentration oxygen to the user in a pulse manner.

[0057] The technical solution of the above-mentioned alternative embodiment can solve the problem of how to save the space occupied by the gas path control module, and the various gas path interfaces and wiring planning are clear, which is convenient for maintenance and detection operation.

[0058] The content is a gas distribution structure, which comprises a valve body part provided with a first control valve 41, a second control valve 50 and a third control valve 313 at the bottom, and a shunt part of each gas path, wherein the valve body part further comprises a valve seat 60. The shunt part is composed of a plurality of gas path plates to form a plurality of gas paths, which are communicated through one-way valve sheets or control valves, and each gas path is mainly divided into two layers, each layer is approximately on a plane, the gas path is clear, and each part of the gas path is easy to identify. The control valves are all solenoid valves, which can be uniformly installed on the valve seat 60 connected with the shunt part, the power supply wiring direction of the solenoid valves is uniform, the whole is relatively regular, and maintenance is facilitated.

[0059] In a second aspect, the application provides an oxygen production mechanism, which comprises a gas distribution assembly and two adsorption oxygen production assemblies, the gas distribution assembly is the gas distribution assembly of any one of the above-mentioned embodiments, and the first gas path 11 and the second gas path 12 of the gas distribution assembly are respectively communicated with the two adsorption oxygen production assemblies. By using the above-mentioned gas distribution assembly, the structure is compact, maintenance is facilitated, and the flushing of the adsorption oxygen production assembly required by the adsorption oxygen production method is taken into account, so that the user can be provided with pulse high-concentration oxygen, the oxygen output is more stable and reliable, and subsequent disassembly and maintenance are facilitated. Specifically, the oxygen production mechanism can be a portable oxygen generator, an oxygen production part for oxygen supply in a medical device or a portable oxygen equipment such as a welding equipment.

[0060] In a third aspect, the application provides a medical device, which comprises the oxygen production mechanism in the above-mentioned embodiments. The medical device using the above-mentioned oxygen production mechanism can provide the user with pulse high-concentration oxygen to ensure the oxygen demand, and can be a portable oxygen generator, an anesthesia machine, a breathing machine, a cardiopulmonary resuscitation machine, a high-flow respiratory humidification treatment instrument and the like.

[0061] In a fourth aspect, the application provides an adsorption oxygen production method, which uses the gas distribution assembly in the above-mentioned embodiments and comprises the following steps:

[0062] Oxygen is introduced into the first gas path 11 through the adsorption oxygen production assembly, and the first control valve 41, the second control valve 50 and the third control valve 313 are all in the off state;

[0063] After the oxygen passes through the first gas path 11, the first one-way valve 13 is opened, the oxygen enters the third gas path 31, and then passes through the oxygen storage gas path 311 to enter the oxygen storage structure 314 for storage, so that the oxygen storage structure 314 stores a preset value of oxygen.

[0064] When the oxygen in the oxygen storage structure 314 reaches a certain pressure, the third control valve 313 is turned on, the oxygen flow passes through the oxygen discharge gas path 312 in the third gas path 31 to reach the exhaust outlet, and is used by the user;

[0065] The third control valve 313 is opened, the first gas path 11 continues to supply oxygen, and the oxygen storage structure 314 pressure rises again;

[0066] When the gas pressure in the gas path reaches the set value, the first control valve 41 is opened, the compressed oxygen passes through the distribution gas path 40, opens the fourth one-way valve 43 into the second gas path 12; the oxygen passes through the second gas path 12 into its corresponding adsorption oxygen generating assembly for flushing and exhaust gas discharge.

[0067] The adsorption oxygen generating assembly of the first gas path 11 continues to supply oxygen, and after the oxygen in the gas path reaches the predetermined pressure, the second gas path 12 is cut off from the communication of the corresponding adsorption oxygen generating assembly, and the second control valve 50 is opened; so that

[0068] The second control valve 50 is opened when the gas pressure in the first gas path 11 and the second gas path 12 gradually becomes the same;

[0069] The first gas path 11 is cut off from the communication of the corresponding adsorption oxygen generating assembly, and the second gas path 12 is connected to the adsorption oxygen generating assembly, and the adsorption oxygen generating assembly is connected to the first gas path 11. Oxygen is introduced into the first gas path 11; enter the second cycle, the second gas path 12 corresponding to the adsorption oxygen generating assembly starts to generate oxygen, and the first gas path 11 corresponding to the adsorption oxygen generating assembly exhausts waste gas. Repeat this way to provide high-concentration oxygen to the user in a pulse manner. Such oxygen generating steps carry out the cycle of oxygen generation, oxygen supply, oxygen storage, and flushing of waste gas, providing a stable oxygen generation and oxygen supply method, which can better supply oxygen when applied to the corresponding device.

[0070] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be interpreted as necessarily requiring their performance in the specific order indicated, unless explicitly stated otherwise. It is also to be understood that additional or alternative steps can be employed.

[0071] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example implementations.

[0072] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes can readily occur to those skilled in the art, which modifications and changes are intended to be within the scope of the application. Accordingly, the scope of the application is to be interpreted only as is fairly required by the patent laws.

Claims

1. A gas path distribution assembly in communication with two adsorption oxygen generation assemblies of an oxygen generation mechanism, characterized in that, The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly.

2. The air path distribution assembly of claim 1, wherein, The application relates to a gas path distribution assembly.

3. The air path distribution assembly of claim 2, wherein, The application relates to a gas path distribution assembly.

4. The air path distribution assembly of claim 3, wherein, The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. 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The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution assembly. The application relates to a gas path distribution 5. The air path distribution assembly of any one of claims 1 to 4, wherein, A first seal (71) is arranged between the first gas path plate (10) and the second gas path plate (20), and the first seal (71) is matched with the first gas path (11) and the second gas path (12); a second seal (72) is arranged between the second gas path plate (20) and the third gas path plate (30), and the second seal (72) is matched with the third gas path (31).

6. The air path distribution assembly of claim 5, wherein, The third gas path (31) comprises an oxygen storage gas path (311) and an oxygen discharge gas path (312), the oxygen storage gas path (311) is communicated with the first gas path (11) and the second gas path (12) respectively, and the oxygen discharge gas path (312) is communicated with the oxygen storage gas path (311) through a third control valve (313).

7. An oxygen generating mechanism, characterized by comprising: The medical device comprises the oxygen production mechanism as claimed in claim 7.

8. A medical device, characterized by The medical device comprises the oxygen production mechanism as claimed in claim 7.

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