Household oxygen generator

Abstract

A household oxygen generator (1), comprising a housing, the housing being internally provided with a compression mechanism, a first gas path module (30), and an oxygen generation mechanism (40) which communicate in sequence. The first gas path module (30) comprises a flow guide pipe (50), a movable pipe (60), and a locking assembly (70), the movable pipe (60) being movably connected to the flow guide pipe (50), the locking assembly (70) being in transmission connection with the movable pipe (60), and the flow guide pipe (50) being connected to the oxygen generation mechanism (40). The locking assembly (70) has a locked position and an unlocked position. When the locking assembly (70) is in the locked position, the movable pipe (60) is engaged with or inserted into an air inlet of the oxygen generation mechanism (40); and when the locking assembly (70) is in the unlocked position, the movable pipe (60) is separated from the air inlet of the oxygen generation mechanism (40). According to the described household oxygen generator (1), the position of the movable pipe (60) is changed by using the locking assembly (70) so as to be assembled with and disassembled from the oxygen generation mechanism (40), thus reducing the difficulty in connecting and detaching the oxygen generation mechanism (40) and the first gas path module (30).

Description

Home oxygen concentrator

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 10, 2024, with application number 202420062807.7 and invention name “Home Oxygen Concentrator”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of household oxygen concentrators, and in particular to a household oxygen concentrator. Background Art

[0003] With the development of society, the number of elderly people is gradually increasing, and the incidence of diseases such as chronic obstructive pulmonary disease, heart disease, pulmonary fibrosis, and asthma is also increasing accordingly. Oxygen inhalation can effectively alleviate and treat the above diseases.

[0004] With the advancement of medical technology and a deeper understanding of diseases, more and more people are paying attention to home healthcare, and oxygen concentrators are becoming increasingly popular. After a period of use, the oxygen concentrator's adsorbent needs to be replaced to ensure the quality of oxygen production. Traditional home oxygen concentrators are difficult to replace the oxygen concentrator, often requiring tedious disassembly and installation of the piping, which increases the difficulty for non-professionals to disassemble and replace the oxygen concentrator themselves.

[0005] Utility Model Content

[0006] The present application provides a household oxygen concentrator to solve the problem of difficulty in replacing and disassembling an oxygen-generating adsorbent.

[0007] According to the household oxygen concentrator of the present application, it includes a shell, in which a compression mechanism, a first air path module and an oxygen concentrator are sequentially connected. The first air path 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 in transmission connection with 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.

[0008] According to the household oxygen concentrator of the present application, the oxygen-generating mechanism includes at least two molecular sieve units, each of which includes a first port and a second port. There are at least two movable pipelines, each of which cooperates with the first port of the molecular sieve unit. The locking assembly includes a trachea fixing plate, each of which is provided with at least two limiting grooves, and the movable pipeline is clamped in the limiting grooves.

[0009] 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 provided 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.

[0010] Optionally, a handle is provided at the free end of the second connecting rod.

[0011] 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.

[0012] Optionally, a support plate is provided in the shell, and 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, and the locking assembly includes a threaded part, which is connected to the trachea fixing plate and is passed through the threaded hole.

[0013] Optionally, the guide pipeline includes a first guide pipe segment, part of the movable pipeline is passed through the first guide pipe segment, and 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, which is connected to the first port, and the movable pipeline can be inserted into or removed from the second guide pipe segment.

[0014] 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 section and abuts against the inner wall of the first guide tube 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 tube section and abuts against the inner wall of the second guide tube section.

[0015] 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 provided on the first stop portion, and a third seal is also provided on the movable pipeline. The first guide pipe section defines a second stop portion, and the second stop portion is located on the side of the first stop portion close to the trachea fixing plate. The third seal can be clamped between the second stop portion and the first stop portion.

[0016] 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 tube segment is perpendicular to the axial direction of the adsorbent cylinder.

[0017] According to the household oxygen concentrator of the present application, the oxygen-generating mechanism includes an adsorbent cylinder and an adsorbent cover connected to each other, the adsorbent cylinder is provided with an oxygen-generating adsorbent, and 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 outside the second receiving groove.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] The household oxygen concentrator provided in the embodiment of the present application has a compression mechanism for compressing air and pressurizing 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 into the air inlet of the oxygen concentrator, thereby connecting the first air circuit module 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 unlocked 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 the 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 disassembling the oxygen generator and the first gas path module can be simplified, making it easier for non-professionals to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] FIG1 is a partial cross-sectional view of a locked position of a household oxygen concentrator provided in Example 1 of the present application;

[0024] FIG2 is a partial cross-sectional view of an unlocked position of a household oxygen concentrator provided in Example 1 of the present application;

[0025] FIG3 is an exploded view of a household oxygen concentrator provided in Example 1 of the present application;

[0026] FIG4 is a perspective view of a locking assembly of a household oxygen concentrator provided in Example 1 of the present application;

[0027] FIG5 is a cross-sectional view of a locking assembly of a household oxygen concentrator provided in Example 1 of the present application;

[0028] FIG6 is a cross-sectional view of a household oxygen concentrator in a locked position provided in Example 2 of the present application;

[0029] FIG7 is a cross-sectional view of an unlocked position of a household oxygen concentrator provided in Example 2 of the present application.

[0030] Explanation of the accompanying drawings: Household oxygen concentrator 1, first air circuit module 30, oxygen production mechanism 40, second guide pipe section 42, first seal 43, second seal 44, third seal 45, adsorbent cartridge 46, adsorbent cover 47, oxygen production adsorbent 48, guide pipe 50, first guide pipe section 51, second stopper 52, movable pipe 60, air pipe fixing plate 61, limiting groove 62, first stopper 63, locking assembly 70, fixing seat 71, sliding block 72, fixing block 73, first connecting rod 74, second connecting rod 75, handle 76, screw member 77, support plate 80. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended 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 simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0033] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0034] As shown in Figures 1 to 3, the household oxygen concentrator 1 according to an embodiment of the present application includes a shell, in which a compression mechanism, a first air circuit module 30 and an oxygen production mechanism 40 are sequentially connected. The first air circuit module 30 includes a flow guide pipe 50, a movable pipe 60 and a locking assembly 70. The movable pipe 60 is movably connected to the flow guide pipe 50. The locking assembly 70 is transmission-connected to the movable pipe 60. The flow guide pipe 50 is connected to the oxygen production mechanism 40. The locking assembly 70 has a locked position and an unlocked position. When the locking assembly 70 is in the locked position, the movable pipe 60 is clamped or plugged with the air inlet of the oxygen production mechanism 40. When the locking assembly 70 is in the unlocked position, the movable pipe 60 is separated from the air inlet of the oxygen production mechanism 40.

[0035] Specifically, the compression mechanism is used to compress and pressurize air, while the oxygen generator 40 is used to adsorb and filter the compressed air to produce high-concentration oxygen. The first air path module 30 connects the compression mechanism and the oxygen generator 40 to direct compressed air from the compression mechanism to the oxygen generator 40. During assembly of the household oxygen concentrator 1, when the oxygen generator 40 is installed in the housing, the locking assembly 70 is in the unlocked position to clear the oxygen generator 40 and facilitate assembly of the various components. At this point, the locking assembly 70 is moved to the locked position, and the movable conduit 60 is engaged or plugged into the air inlet of the oxygen generator 40, thereby connecting the first air path module 30 to the oxygen generator 40. Alternatively, after the oxygen generator 40 has been in operation for a long time, the oxygen adsorbent 48 in the oxygen generator 40 may gradually become ineffective. If the oxygen adsorbent 48 needs to be replaced, the locking assembly 70 is moved to the unlocked position to separate the movable conduit 60 from the air inlet of the oxygen generator 40, thereby facilitating removal of the oxygen generator 40.

[0036] The movable pipeline 60 is snap-fitted or plugged into the air inlet of the oxygen generator 40. That is, in some embodiments, the movable pipeline 60 is snap-fitted into the air inlet of the oxygen generator 40. It can be understood that even if it is snap-fitted, 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 into the oxygen generator 40.

[0037] 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 concentrator 40, the difficulty of connecting and disassembling the oxygen concentrator 40 and the first gas path module 30 can be simplified, making it easier for non-professionals to use.

[0038] In some specific embodiments, the oxygen production mechanism 40 includes at least two molecular sieve units, each of which includes a first port and a second port. The air inlet of the oxygen production mechanism 40 is simultaneously connected to the first ports of the at least two molecular sieve units, and the exhaust port of the oxygen production mechanism 40 is simultaneously connected to the second ports of the at least two molecular sieve units. In this way, the molecular sieve units in the oxygen production mechanism 40 simultaneously take in air, exhaust air, and produce oxygen.

[0039] As shown in Figure 4, 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 trachea fixing plate 61, and the trachea fixing plate 61 is provided with at least two limiting grooves 62, and the movable pipeline 60 is clamped in the limiting groove 62.

[0040] That is to say, the movable pipeline 60 cooperates with the molecular sieve unit one by one, so that the molecular sieve unit can be independently controlled to produce oxygen. For example, when one of the molecular sieve units is producing oxygen, the movable pipeline 60 provides compressed air to 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 other 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 movable pipeline 60 connected thereto.

[0041] 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 provided at the bottom of the molecular sieve unit, and the second port is provided at the top of the molecular sieve unit.

[0042] As shown in Figures 3 to 5, 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 provided 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 the two 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.

[0043] 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 provided 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, and 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, and the movement of the second connecting rod 75 drives the sliding block 72 to move, thereby ultimately driving the trachea fixing plate 61 to move.

[0044] The fixing seat 71 serves to limit and guide the sliding block 72 so that the sliding block 72 can move along a predetermined trajectory.

[0045] As shown in FIG3 , in some embodiments, a handle 76 is provided at the free end of the second connecting rod 75 , so that the user can directly grasp the handle 76 to rotate the second connecting rod 75 , thereby ultimately driving the trachea fixing plate 61 to move.

[0046] In some embodiments, the fixing base 71 is provided with a first receiving groove, into which the handle 76 is inserted when the locking assembly 70 is in the locked position. This arrangement allows the handle 76 to be accommodated in the first receiving groove, thereby reducing the overall volume of the locking assembly 70 during assembly, reducing the space occupied within the housing, and thereby reducing the overall volume of the home oxygen concentrator 1.

[0047] In some embodiments, a relief groove is provided at the end of the handle 76 distal from the second connecting rod 75. When the handle 76 is inserted into the first receiving groove, the relief groove faces the bottom wall of the first receiving groove. The free end of the handle 76 and the sidewall of the first receiving groove define a relief space, which is connected to the first receiving groove. This arrangement facilitates a finger reaching into the first receiving groove through the relief space to apply force to the handle 76, thereby removing the handle 76 from the first receiving groove.

[0048] As shown in Figures 6 and 7, 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. The threaded member 77 is connected to the trachea fixing plate 61, and the threaded member 77 is passed through the threaded hole.

[0049] In detail, the threaded member 77 is passed through 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 engaged thread, thereby realizing the movement of the trachea fixing plate 61 by rotating the threaded member 77.

[0050] As shown in Figures 1-3 and Figures 6 and 7, in some embodiments, the guide pipe 50 includes a first guide pipe segment 51, and a portion of the movable pipe 60 is disposed in the first guide pipe segment 51. The movable pipe 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, which is connected to the first port. The movable pipe 60 can be inserted into or removed from the second guide pipe segment 42.

[0051] Specifically, a portion of the movable conduit 60 is always inserted into the first guide conduit section 51. The difference is that the length of the movable conduit 60 inserted into the first guide conduit section 51 varies at different locations. Thus, in addition to being connected to the movable conduit 60, the first guide conduit section 51 also guides the movable conduit 60, ensuring that the movable conduit 60 always moves along the axial direction of the first guide conduit section 51 during movement. This allows the movable conduit 60 to consistently follow a predetermined trajectory during movement. As the locking assembly 70 moves, the movable conduit 60 is driven into or out of the second guide conduit section 42. The second guide conduit section 42 also serves to connect with the movable conduit 60 and guide the other end of the movable conduit 60. As the movable conduit 60 moves out of the first guide conduit section 51, the second guide conduit section 42 guides the movable conduit 60, maintaining its balance and allowing it to move along a predetermined trajectory.

[0052] As shown in FIG. 1 and FIG. 2 , in some embodiments, a first sealing member 43 is sleeved on the outer wall of the movable pipe 60 . 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 .

[0053] 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.

[0054] As shown in Figures 1 and 2, in some embodiments, a second seal 44 is sleeved on the outer wall of the movable pipe 60. When the locking assembly 70 is in the locking position, the second seal 44 is located in the second guide pipe section 42 and abuts against the inner wall of the second guide pipe section 42.

[0055] In detail, the movable pipeline 60 transmits gas. Since the movable pipeline 60 is movable, a second seal 44 is provided on the outer wall of the movable pipeline 60. When the locking assembly 70 is in the locking position, the second seal 44 is located in the second guide pipe section 42 and abuts against the inner wall of the second guide pipe section 42, thereby utilizing the second seal 44 to enhance the air tightness between the movable pipeline 60 and the second guide pipe section 42 to avoid air leakage.

[0056] As shown in Figures 6 and 7, 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. The second stop portion 52 is located on the side of the first stop portion 63 close to the trachea fixing plate 61, and the third seal 45 can be clamped between the second stop portion 52 and the first stop portion 63.

[0057] Specifically, the second stopper 52 is located on the side of the first stopper 63 near the trachea fixing plate 61. The second stopper 52 blocks the first stopper 63, preventing the movable conduit 60 from escaping the first guide tube section 51 and acting as a guide limiter. When the first stopper 63 moves until the first seal 43 is stopped by the second stopper 52, the third seal 45 is clamped between the first stopper 63 and the second stopper 52, further enhancing the airtightness between the movable conduit 60 and the first guide tube section 51.

[0058] According to the household oxygen concentrator 1 of the present embodiment, the oxygen generating mechanism includes an adsorbent cartridge 46, and the axis of the first guide tube section 51 is perpendicular to the axis of the adsorbent cartridge 46. This arrangement facilitates positioning and calibration, allowing for more reasonable placement of the various mechanisms and simplifying the difficulty of accurate positioning.

[0059] According to the household oxygen concentrator 1 of the embodiment of the present application, the oxygen production mechanism 40 includes an adsorbent cover 47, which is connected to the adsorbent cylinder 46. The adsorbent cylinder 46 is provided with an oxygen-producing adsorbent 48. The adsorbent cover 47 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 outside the second receiving groove.

[0060] 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, and a spring is sandwiched between the adsorbent pressure plate and the adsorbent cover 47. The spring is in a compressed state, so that the oxygen-generating adsorbent 48 is always in a compressed state, ensuring efficient gas separation.

[0061] 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 small, the first adsorbent filter sheet can filter the adsorbent and improve the cleanliness of the oxygen.

[0062] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only 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 "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of the 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 to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0063] 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 otherwise, 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.

[0064] The above are merely specific embodiments of the present invention, intended to enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A household oxygen generator, characterized in that, It includes a housing, and a compression mechanism, a first gas path module and an oxygen generation mechanism which are sequentially communicated are arranged inside the housing. The first gas path module includes a diversion pipeline, a movable pipeline and a locking assembly. The movable pipeline is movably connected to the diversion pipeline. The locking assembly is in transmission connection with the movable pipeline. The diversion pipeline is connected to the oxygen generation 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 inserted into the air inlet of the oxygen generation mechanism. When the locking assembly is in the unlocking position, the movable pipeline is separated from the air inlet of the oxygen generation mechanism.

2. The household oxygen generator according to claim 1, characterized in that, The oxygen generation mechanism includes at least two molecular sieve units. The molecular sieve unit includes a first port and a second port. The number of the movable pipelines is at least two. The movable pipelines cooperate with the first ports of the molecular sieve units. The locking assembly includes a trachea fixing plate. At least two limiting grooves are arranged on the trachea fixing plate. The movable pipelines are clamped in the limiting grooves.

3. The household oxygen generator according to claim 2, wherein, 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 fixedly arranged on the fixed seat. Two ends of the first connecting rod are respectively hinged to the fixed block and the second connecting rod. The second connecting rod is hinged to the sliding block.

4. The household oxygen generator according to claim 3, wherein, A handle is arranged at the free end of the second connecting rod.

5. The household oxygen generator according to claim 4, characterized in that A first receiving groove is arranged on the fixed seat. When the locking assembly is in the locking position, the handle is embedded in the first receiving groove.

6. The household oxygen generator according to claim 2, wherein, A support plate is arranged inside the housing. The support plate is located on the side of the oxygen generation mechanism facing the compression mechanism. A threaded hole is arranged on the support plate. The locking assembly includes a threaded member. The threaded member is connected to the trachea fixing plate and penetrates through the threaded hole.

7. The household oxygen generator according to claim 2, characterized in that, The diversion pipeline includes a first guiding pipe section. A part of the movable pipeline penetrates through the first guiding pipe section. The movable pipeline can move along the axial direction of the first guiding pipe section. The oxygen generation mechanism includes a second guiding pipe section. The second guiding pipe section is communicated with the first port. The movable pipeline can be inserted into or removed from the second guiding pipe section.

8. The household oxygen generator according to claim 7, wherein A first sealing member is sleeved on the outer wall of the movable pipeline. The first sealing member is located in the first guiding pipe section and abuts against the inner wall of the first guiding pipe section; and / or a second sealing member is sleeved on the outer wall of the movable pipeline. When the locking assembly is in the locking position, the second sealing member is located in the second guiding pipe section and abuts against the inner wall of the second guiding pipe section.

9. The household oxygen generator according to claim 8, characterized in that, A first stop portion is arranged on the movable pipeline. The first stop portion is located in the first guiding pipe section. A first sealing member is sleeved on the first stop portion. A third sealing member is also sleeved on the movable pipeline. The first guiding 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. The third sealing member can be clamped between the second stop portion and the first stop portion.

10. The home oxygen generator according to any one of claims 7-9, characterized in that, The oxygen generation mechanism includes an adsorbent cylinder, and the axial direction of the first guiding pipe section is perpendicular to the axial direction of the adsorbent cylinder.

11. The household oxygen generator according to claim 1, characterized in that, The oxygen generation mechanism includes an adsorbent cylinder and an adsorbent cover connected to each other. An oxygen generation adsorbent is provided in the adsorbent cylinder. A second receiving groove and a rotatable handle are provided on the adsorbent cover. The handle can be rotated to a position where it is inserted into the second receiving groove and a position outside the second receiving groove.

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