Household oxygen generator

Abstract

The utility model relates to a household oxygen generator, the household oxygen generator comprises a shell, the shell is internally provided with a compression mechanism, a first gas circuit module and an oxygen generation mechanism which are communicated in sequence, the first gas circuit module comprises a flow guide pipeline, a movable pipeline and a locking assembly, the movable pipeline is movably connected with the flow guide pipeline, and the locking assembly is connected with the movable pipeline. The locking assembly is in transmission connection with the movable pipeline, the flow guide pipeline is connected with the oxygen generation mechanism, the locking assembly is provided with a locking position and an unlocking position, when the locking assembly is located at the locking position, the movable pipeline is connected with an air inlet of the oxygen generation mechanism in a clamped or inserted mode, and when the locking assembly is located at the unlocking position, the movable pipeline is connected with an air outlet of the oxygen generation mechanism in a clamped or inserted mode. When the locking assembly is located at the unlocking position, the movable pipeline is separated from the air inlet of the oxygen generation mechanism. According to the household oxygen generator, the position of the movable pipeline is changed through the locking assembly so that the oxygen generation mechanism can be assembled and disassembled, and the difficulty of communication and disassembly of the oxygen generation mechanism and the first gas path module can be lowered.

Description

Technical Field

[0001] The present application relates to the technical field of household oxygen concentrators, and in particular to a household oxygen concentrator. Background Art

[0002] With the development of society, the number of elderly people is gradually increasing, and the incidence of chronic obstructive pulmonary disease, heart disease, pulmonary fibrosis, asthma and other diseases is also increasing accordingly. Oxygen inhalation can effectively alleviate and treat the above diseases.

[0003] With the improvement of medical level and people's deepening understanding of diseases, more and more people begin to pay attention to home health care, and oxygen generators begin to become popular. After a period of use, the oxygen generator needs to replace the oxygen adsorbent to ensure the quality of oxygen production. Traditional home oxygen generators are more troublesome to replace the oxygen adsorbent, and often require more cumbersome disassembly and installation of the pipeline, which increases the difficulty for non-professionals to disassemble and replace by themselves. Utility Model Content

[0004] The present application provides a household oxygen generator to solve the problem of difficulty in replacing and disassembling an oxygen generator adsorbent.

[0005] A household oxygen concentrator according to the present application includes a shell, in which a compression mechanism, a first gas circuit module and an oxygen concentrator that are connected in sequence are arranged, the first gas circuit module includes a flow guide pipeline, a movable pipeline and a locking assembly, the movable pipeline is movably connected to the flow guide pipeline, the locking assembly is transmission-connected to the movable pipeline, the flow guide pipeline is connected to the oxygen concentrator, the locking assembly has a locking position and an unlocking position, when the locking assembly is in the locking position, the movable pipeline is clamped or plugged with the air inlet of the oxygen concentrator, when the locking assembly is in the unlocking position, the movable pipeline is separated from the air inlet of the oxygen concentrator.

[0006] According to the household oxygen concentrator of the present application, the oxygen-generating mechanism includes at least two molecular sieve units, the molecular sieve unit includes a first port and a second port, there are at least two movable pipelines, the movable pipeline cooperates with the first port of the molecular sieve unit, and the locking assembly includes an trachea fixing plate, the trachea fixing plate is provided with at least two limiting grooves, and the movable pipeline is clamped in the limiting grooves.

[0007] Optionally, the locking assembly includes a fixed seat, a sliding block, a fixed block, a first connecting rod and a second connecting rod, the sliding block is movably disposed on the fixed seat, the sliding block is connected to the trachea fixing plate, the fixed block is fixed on the fixed seat, the two ends of the first connecting rod are respectively hinged to the fixed block and the second connecting rod, and the second connecting rod is hinged to the sliding block.

[0008] Optionally, a handle is provided at the free end of the second connecting rod.

[0009] Optionally, a first receiving groove is provided on the fixing seat, and when the locking assembly is in the locking position, the handle is embedded in the first receiving groove.

[0010] Optionally, a support plate is provided in the shell, the support plate is located on the side of the oxygen production mechanism facing the compression mechanism, a threaded hole is provided on the support plate, the locking assembly includes a threaded part, the threaded part is connected to the trachea fixing plate, and the threaded part is passed through the threaded hole.

[0011] Optionally, the guide pipeline includes a first guide pipe segment, part of the movable pipeline is inserted into the first guide pipe segment, the movable pipeline can move along the axial direction of the first guide pipe segment, the oxygen production mechanism includes a second guide pipe segment, the second guide pipe segment is connected to the first port, and the movable pipeline can be inserted into or removed from the second guide pipe segment.

[0012] Optionally, a first seal is sleeved on the outer wall of the movable pipeline, and the first seal is located in the first guide tube segment and abuts against the inner wall of the first guide tube segment; and / or a second seal is sleeved on the outer wall of the movable pipeline, and when the locking assembly is in the locking position, the second seal is located in the second guide tube segment and abuts against the inner wall of the second guide tube segment.

[0013] Optionally, a first stop portion is provided on the movable pipeline, the first stop portion is located in the first guide pipe section, a first seal is sleeved on the first stop portion, a third seal is also sleeved on the movable pipeline, the first guide pipe section defines a second stop portion, the second stop portion is located on the side of the first stop portion close to the trachea fixing plate, and the third seal can be clamped between the second stop portion and the first stop portion.

[0014] According to the household oxygen concentrator of the present application, the oxygen-generating mechanism includes an adsorbent cylinder, and the axial direction of the first guide pipe segment is perpendicular to the axial direction of the adsorbent cylinder.

[0015] According to the household oxygen concentrator of the present application, the oxygen production mechanism includes an adsorbent cylinder and an adsorbent cover that are connected to each other, the adsorbent cylinder is provided with an oxygen-producing adsorbent, the adsorbent cover is provided with a second receiving groove and a rotatable handle, and the handle can be rotated to a position embedded in the second receiving groove and a position located outside the second receiving groove.

[0016] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0017] In the household oxygen concentrator provided in the embodiment of the present application, the compression mechanism is used to compress air and pressurize the air, and the oxygen concentrator is used to adsorb and filter the compressed air to generate high-concentration oxygen. The first air circuit module connects the compression mechanism and the oxygen concentrator to introduce the compressed air from the compression mechanism into the oxygen concentrator. When assembling the household oxygen concentrator, when the oxygen concentrator is assembled in the shell, the locking assembly is in the unlocked position to avoid the oxygen concentrator and facilitate the assembly of various components. At this time, the locking assembly is moved to the locked position, and the movable pipeline is snapped or plugged with the air inlet of the oxygen concentrator, so that the first air circuit module is connected to the oxygen concentrator. Alternatively, after the oxygen generator has been in operation for a long time, the oxygen generator adsorbent will gradually become ineffective and needs to be replaced. The locking assembly is moved to the unlocking position to separate the movable pipeline from the air inlet of the oxygen generator, thereby facilitating the removal of the oxygen generator. In this way, by providing a movable pipeline and using the locking assembly to change the position of the movable pipeline to achieve assembly and disassembly with the oxygen generator, the difficulty of connecting and disconnecting the oxygen generator and the first gas path module can be simplified, making it convenient for non-professionals to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 A partial cross-sectional view of a locked position of a household oxygen concentrator provided in Embodiment 1 of the present application;

[0022] Figure 2 A partial cross-sectional view of an unlocked position of a household oxygen concentrator provided in Embodiment 1 of the present application;

[0023] Figure 3 An exploded diagram of a household oxygen concentrator provided in Example 1 of the present application;

[0024] Figure 4 A three-dimensional diagram of a locking assembly of a household oxygen concentrator provided in Example 1 of the present application;

[0025] Figure 5 A cross-sectional view of a locking assembly of a household oxygen concentrator provided in Example 1 of the present application;

[0026] Figure 6 A cross-sectional view of a locked position of a household oxygen concentrator provided in Embodiment 2 of the present application;

[0027] Figure 7 A cross-sectional view of the unlocked position of a household oxygen concentrator provided in Example 2 of the present application.

[0028] Description of reference numerals:

[0029] Home oxygen concentrator 1,

[0030] The first gas circuit module 30, the oxygen generating mechanism 40, the second guide pipe section 42, the first sealing member 43, the second sealing member 44, the third sealing member 45, the adsorbent cylinder 46, the adsorbent cover 47, the oxygen generating adsorbent 48,

[0031] The guide pipe 50, the first guide pipe section 51, the second stopper 52, the movable pipe 60, the air pipe fixing plate 61, the limiting groove 62, the first stopper 63,

[0032] Locking assembly 70 , fixing seat 71 , sliding block 72 , fixing block 73 , first connecting rod 74 , second connecting rod 75 , handle 76 , threaded member 77 , support plate 80 . DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, 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 invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0035] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "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 orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0036] like Figure 1-Figure 3 As shown, the household oxygen concentrator 1 according to the embodiment of the present application includes a shell, in which a compression mechanism, a first gas circuit module 30 and an oxygen production mechanism 40 connected in sequence are arranged, the first gas circuit module 30 includes a guide pipeline 50, an active pipeline 60 and a locking assembly 70, the active pipeline 60 is movably connected to the guide pipeline 50, the locking assembly 70 is transmission-connected to the active pipeline 60, the guide pipeline 50 is connected to the oxygen production mechanism 40, the locking assembly 70 has a locking position and an unlocking position, when the locking assembly 70 is in the locking position, the active pipeline 60 is clamped or plugged with the air inlet of the oxygen production mechanism 40, when the locking assembly 70 is in the unlocking position, the active pipeline 60 is separated from the air inlet of the oxygen production mechanism 40.

[0037] In detail, the compression mechanism is used to compress air and pressurize the air, and the oxygen generator 40 is used to adsorb and filter the compressed air to generate high-concentration oxygen. The first gas circuit module 30 connects the compression mechanism and the oxygen generator 40 to introduce the compressed air from the compression mechanism to the oxygen generator 40. When the household oxygen generator 1 is assembled, when the oxygen generator 40 is assembled in the housing, the locking assembly 70 is in the unlocked position to avoid the oxygen generator 40, which is convenient for the assembly of various components. At this time, the locking assembly 70 is moved to the locked position, and the movable pipeline 60 is connected or plugged with the air inlet of the oxygen generator 40, so that the first gas circuit module 30 is connected with the oxygen generator 40. Or after the oxygen generator 40 has been in operation for a long time, the oxygen generator adsorbent 48 in the oxygen generator 40 will gradually fail. When the oxygen generator adsorbent 48 needs to be replaced, the locking assembly 70 is moved to the unlocked position to separate the movable pipeline 60 from the air inlet of the oxygen generator 40, so as to facilitate the removal of the oxygen generator 40.

[0038] Among them, the movable pipeline 60 is snap-connected or plugged with the air inlet of the oxygen generator 40, that is, in some embodiments, the movable pipeline 60 is snap-connected with the air inlet of the oxygen generator 40. It can be understood that even if it is snap-connected, the movable pipeline 60 can be moved and disengaged from the oxygen generator 40 during the movement of the locking assembly 70. In some embodiments, the movable pipeline 60 is plugged with the oxygen generator 40.

[0039] According to the household oxygen concentrator 1 of the embodiment of the present application, by providing a movable pipeline 60 and using a locking assembly 70 to change the position of the movable pipeline 60 to achieve assembly and disassembly with the oxygen generator 40, the difficulty of connecting and disassembling the oxygen generator 40 and the first gas circuit module 30 can be simplified, making it convenient for non-professionals to use.

[0040] In some specific embodiments, the oxygen production mechanism 40 includes at least two molecular sieve units, the molecular sieve unit includes a first port and a second port, the air inlet of the oxygen production mechanism 40 is connected to the first ports of the at least two molecular sieve units at the same time, and the exhaust port of the oxygen production mechanism 40 is connected to the second ports of the at least two molecular sieve units at the same time. In this way, the molecular sieve units in the oxygen production mechanism 40 take in air, exhaust air, and produce oxygen at the same time.

[0041] like Figure 4 As shown, according to the household oxygen concentrator 1 of the embodiment of the present application, the oxygen production mechanism 40 includes at least two molecular sieve units, the molecular sieve unit includes a first port and a second port, there are at least two movable pipelines 60, the movable pipeline 60 cooperates with the first port of the molecular sieve unit, and the locking assembly 70 includes an air pipe fixing plate 61, and the air pipe fixing plate 61 is provided with at least two limiting grooves 62, and the movable pipeline 60 is clamped in the limiting groove 62.

[0042] That is to say, the active pipeline 60 cooperates with the molecular sieve units one by one, so that the molecular sieve units can be independently controlled to produce oxygen. For example, when one of the molecular sieve units is producing oxygen, the active pipeline 60 provides compressed air for the molecular sieve unit, and the concentrated oxygen produced by the molecular sieve unit is discharged from the second port, part of the concentrated oxygen enters the oxygen storage mechanism and finally provides oxygen to the user, and part of the concentrated oxygen enters the molecular sieve unit through the second port to flush the molecular sieve unit with exhaust gas, and the exhaust gas is discharged from the first port of the other molecular sieve unit and the active pipeline 60 connected thereto.

[0043] In a specific embodiment, the molecular sieve unit includes a first port and a second port opposite to each other along the length direction, the first port is arranged at the bottom of the molecular sieve unit, and the second port is arranged at the top of the molecular sieve unit.

[0044] like Figure 3-Figure 5 As shown, in some embodiments, the locking assembly 70 includes a fixed seat 71, a sliding block 72, a fixed block 73, a first connecting rod 74 and a second connecting rod 75. The sliding block 72 is movably disposed on the fixed seat 71, the sliding block 72 is connected to the trachea fixing plate 61, the fixed block 73 is fixed on the fixed seat 71, and both ends of the first connecting rod 74 are respectively hinged to the fixed block 73 and the second connecting rod 75, and the second connecting rod 75 is hinged to the sliding block 72.

[0045] Specifically, the locking assembly 70 includes a fixed seat 71, a sliding block 72, a fixed block 73, a first connecting rod 74 and a second connecting rod 75. The sliding block 72 is movably arranged on the fixed seat 71, that is, the sliding block 72 is movable. The fixed block 73 is fixed on the fixed seat 71. The two ends of the first connecting rod 74 are hinged to the fixed block 73 and the second connecting rod 75 respectively. The second connecting rod 75 is hinged to the sliding block 72. During the rotation of the second connecting rod 75, since the fixed block 73 remains stationary, the first connecting rod 74 rotates while pushing the second connecting rod 75 to move. The movement of the second connecting rod 75 drives the sliding block 72 to move, thereby finally driving the trachea fixing plate 61 to move.

[0046] The fixing seat 71 serves to limit and guide the sliding block 72 , so that the sliding block 72 can move along a predetermined track.

[0047] like Figure 3 As shown, in some embodiments, a handle 76 is provided at the free end of the second connecting rod 75. In this way, it is convenient for the user to directly grasp the handle 76 to drive the second connecting rod 75 to rotate, thereby ultimately driving the trachea fixing plate 61 to move.

[0048] In some embodiments, a first receiving groove is provided on the fixing seat 71, and when the locking assembly 70 is in the locking position, the handle 76 is embedded in the first receiving groove. In this way, the first receiving groove can be used to receive the handle 76, thereby reducing the overall volume of the locking assembly 70 during assembly, reducing the space occupied in the housing, and thus reducing the overall volume of the household oxygen concentrator 1.

[0049] In some embodiments, an escape groove is provided at one end of the handle 76 away from the second connecting rod 75. When the handle 76 is inserted into the first receiving groove, the escape groove is opposite to the bottom wall of the first receiving groove, and the free end of the handle 76 and the side wall of the first receiving groove define an escape space, which is connected to the first receiving groove. This arrangement facilitates the finger to extend into the first receiving groove through the escape space to apply force to the handle 76, thereby removing the handle 76 from the first receiving groove.

[0050] like Figure 6 and Figure 7 As shown, in some embodiments, a support plate 80 is provided in the shell, and the support plate 80 is located on the side of the oxygen production mechanism 40 facing the compression mechanism. A threaded hole is provided on the support plate 80, and the locking assembly 70 includes a threaded member 77, which is connected to the trachea fixing plate 61, and the threaded member 77 is passed through the threaded hole.

[0051] In detail, the threaded member 77 is inserted into the threaded hole, and the threaded member 77 is connected to the trachea fixing plate 61. When the threaded member 77 is rotated, the threaded member 77 will gradually approach the support plate 80 or gradually move away from the support plate 80 along the meshing thread, thereby realizing the movement of the trachea fixing plate 61 by rotating the threaded member 77.

[0052] like Figure 1-Figure 3 as well as Figure 6 and Figure 7 As shown, in some embodiments, the guide pipeline 50 includes a first guide pipe segment 51, a portion of the movable pipeline 60 is passed through the first guide pipe segment 51, the movable pipeline 60 can move along the axial direction of the first guide pipe segment 51, the oxygen production mechanism 40 includes a second guide pipe segment 42, the second guide pipe segment 42 is connected to the first port, and the movable pipeline 60 can be inserted into or removed from the second guide pipe segment 42.

[0053] In detail, part of the movable pipeline 60 is always inserted into the first guide pipe section 51. The difference is that when the movable pipeline 60 is at different positions, the length of the movable pipeline 60 inserted into the first guide pipe section 51 is different. In this way, in addition to being connected to the movable pipeline 60, the first guide pipe section 51 can also guide the movable pipeline 60, so that the movable pipeline 60 always moves along the axial direction of the first guide pipe section 51 when moving, so that the movable pipeline 60 can always move along the predetermined trajectory when moving. With the movement of the locking assembly 70, the movable pipeline 60 is driven to insert or move out of the second guide pipe section 42. The second guide pipe section 42 is also provided to guide the other end of the movable pipeline 60 in addition to realizing the function of connecting with the movable pipeline 60. As the movable pipeline 60 moves out of the first guide pipe section 51, the movable pipeline can be guided by the second guide pipe section 42 to maintain balance and move along the predetermined trajectory.

[0054] like Figure 1 and Figure 2 As shown, in some embodiments, a first sealing member 43 is sleeved on the outer wall of the movable pipeline 60 , and the first sealing member 43 is located in the first guide pipe section 51 and abuts against the inner wall of the first guide pipe section 51 .

[0055] It is understandable that the movable pipeline 60 transmits gas. Since the movable pipeline 60 is movable, providing the first sealing member 43 on the movable pipeline 60 can enhance the airtightness between the movable pipeline 60 and the first guide pipe section 51 to avoid air leakage.

[0056] like Figure 1 and Figure 2 As shown, in some embodiments, a second seal 44 is sleeved on the outer wall of the movable pipeline 60 , and when the locking assembly 70 is in the locking position, the second seal 44 is located in the second guide tube section 42 and abuts against the inner wall of the second guide tube section 42 .

[0057] In detail, the movable pipeline 60 transmits gas. Since the movable pipeline 60 is movable, a second sealing member 44 is sleeved on the outer wall of the movable pipeline 60. When the locking assembly 70 is in the locking position, the second sealing member 44 is located in the second guide pipe section 42 and abuts against the inner wall of the second guide pipe section 42, so that the second sealing member 44 is used to enhance the air tightness between the movable pipeline 60 and the second guide pipe section 42 to avoid air leakage.

[0058] like Figure 6 and Figure 7As shown, in some embodiments, a first stop portion 63 is provided on the movable pipeline 60, and the first stop portion 63 is located in the first guide pipe section 51. A first seal 43 is sleeved on the first stop portion 63. A third seal 45 is also sleeved on the movable pipeline 60. The first guide pipe section 51 defines a second stop portion 52, and the second stop portion 52 is located on a side of the first stop portion 63 close to the trachea fixing plate 61. The third seal 45 can be clamped between the second stop portion 52 and the first stop portion 63.

[0059] In detail, the second stopper 52 is located on the side of the first stopper 63 close to the trachea fixing plate 61, and the second stopper 52 can block the first stopper 63 to prevent the movable pipeline 60 from escaping from the first guide pipe section 51, thus playing the role of guide limit. When the first stopper 63 moves to the point where the first sealing member 43 is stopped by the second stopper 52, the third sealing member 45 is clamped between the first stopper 63 and the second stopper 52, thereby further improving the airtightness between the movable pipeline 60 and the first guide pipe section 51.

[0060] According to the household oxygen concentrator 1 of the embodiment of the present application, the oxygen concentrator mechanism includes an adsorbent cylinder 46, and the axial direction of the first guide pipe section 51 is perpendicular to the axial direction of the adsorbent cylinder 46. Such a setting can facilitate positioning and calibration so as to more reasonably set the positions of various mechanisms and simplify the difficulty of positioning and finding.

[0061] According to the household oxygen concentrator 1 of the embodiment of the present application, the oxygen generating mechanism 40 includes an adsorbent cover 47, which is interconnected with the adsorbent cylinder 46, in which the oxygen generating adsorbent 48 is arranged, and the adsorbent cover 47 is provided with a second receiving groove and a rotatable handle, and the handle can be rotated to a position embedded in the second receiving groove and a position outside the second receiving groove.

[0062] In detail, an oxygen-generating adsorbent 48 is provided in the adsorbent cylinder 46, an adsorbent pressure plate is provided above the adsorbent cover 47, a spring is sandwiched between the adsorbent pressure plate and the adsorbent cover 47, and the spring is in a compressed state, so that the oxygen-generating adsorbent 48 is always in a compressed state, ensuring efficient gas separation.

[0063] In some specific embodiments, a first adsorbent sheet is further provided in the adsorbent cylinder 46. Since the oxygen-generating adsorbent 48 will be powdered during use and the particle size of the powdered molecular sieve is relatively small, the first adsorbent filter sheet can filter the adsorbent to improve the cleanliness of the oxygen.

[0064] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0065] Although the terms first, second, third, etc. can be used in the text to describe multiple 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 only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0066] The above are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A household oxygen concentrator, characterized in that: The invention comprises a shell, in which a compression mechanism, a first gas circuit module and an oxygen production mechanism which are connected in sequence are arranged, the first gas circuit module comprises a flow guide pipeline, a movable pipeline and a locking assembly, the movable pipeline is movably connected to the flow guide pipeline, the locking assembly is transmission-connected to the movable pipeline, the flow guide pipeline is connected to the oxygen production mechanism, the locking assembly has a locking position and an unlocking position, when the locking assembly is in the locking position, the movable pipeline is clamped or plugged with the air inlet of the oxygen production mechanism, when the locking assembly is in the unlocking position, the movable pipeline is separated from the air inlet of the oxygen production mechanism.

2. The household oxygen concentrator according to claim 1, characterized in that: The oxygen production mechanism includes at least two molecular sieve units, the molecular sieve unit includes a first port and a second port, there are at least two movable pipelines, the movable pipeline cooperates with the first port of the molecular sieve unit, the locking assembly includes an air pipe fixing plate, the air pipe fixing plate is provided with at least two limiting grooves, and the movable pipeline is clamped in the limiting grooves.

3. The household oxygen concentrator according to claim 2, characterized in that: The locking assembly includes a fixed seat, a sliding block, a fixed block, a first connecting rod and a second connecting rod. The sliding block is movably arranged on the fixed seat, the sliding block is connected to the trachea fixing plate, the fixed block is fixed on the fixed seat, the two ends of the first connecting rod are respectively hinged to the fixed block and the second connecting rod, and the second connecting rod is hinged to the sliding block.

4. The household oxygen concentrator according to claim 3, characterized in that: A handle is provided at the free end of the second connecting rod.

5. The household oxygen concentrator according to claim 4, characterized in that: The fixing seat is provided with a first receiving groove, and when the locking assembly is in the locking position, the handle is embedded in the first receiving groove.

6. The household oxygen concentrator according to claim 2, characterized in that: A support plate is provided in the shell, the support plate is located on the side of the oxygen production mechanism facing the compression mechanism, a threaded hole is provided on the support plate, the locking assembly includes a threaded part, the threaded part is connected to the trachea fixing plate, and the threaded part is passed through the threaded hole.

7. The household oxygen concentrator according to claim 2, characterized in that: The guide pipeline includes a first guide pipe section, part of the movable pipeline is inserted into the first guide pipe section, the movable pipeline can move along the axial direction of the first guide pipe section, the oxygen production mechanism includes a second guide pipe section, the second guide pipe section is connected to the first port, and the movable pipeline can be inserted into or removed from the second guide pipe section.

8. The household oxygen concentrator according to claim 7, characterized in that: A first seal is sleeved on the outer wall of the movable pipeline, and the first seal is located in the first guide pipe section and abuts against the inner wall of the first guide pipe section; and / or a second seal is sleeved on the outer wall of the movable pipeline, and when the locking assembly is in the locking position, the second seal is located in the second guide pipe section and abuts against the inner wall of the second guide pipe section.

9. The household oxygen concentrator according to claim 8, characterized in that: The movable pipeline is provided with a first stop portion, the first stop portion is located in the first guide pipe section, the first stop portion is sleeved with a first seal, and the movable pipeline is also sleeved with a third seal. The first guide pipe section defines a second stop portion, the second stop portion is located on a side of the first stop portion close to the trachea fixing plate, and the third seal can be clamped between the second stop portion and the first stop portion.

10. The household oxygen concentrator according to any one of claims 7 to 9, characterized in that: The oxygen production mechanism includes an adsorbent cylinder, and the axial direction of the first guide pipe section is perpendicular to the axial direction of the adsorbent cylinder.

11. The household oxygen concentrator according to claim 1, characterized in that: The oxygen production mechanism includes an adsorbent cylinder and an adsorbent cover that are connected to each other. The adsorbent cylinder is provided with an oxygen-producing adsorbent. The adsorbent cover is provided with a second receiving groove and a rotatable handle. The handle can be rotated to a position embedded in the second receiving groove and a position located outside the second receiving groove.

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