Portable oxygen generator
By using a rotating connection structure of the cavity, movable groove, and lifting rod, and a sliding connection design of the sealing plate, the problem of inconvenient portability of oxygen concentrators is solved, achieving convenient portability and miniaturization, and improving operational convenience and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIBET TAIYI PLATEAU OXYGEN TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-10
AI Technical Summary
Existing oxygen concentrators have fixed handles, which makes them inconvenient to carry when traveling or when trying to reduce their size for storage.
A portable oxygen concentrator was designed, which adopts a rotating connection structure of cavity, movable slot and lifting rod, so that the lifting rod can be used vertically and stored horizontally. Combined with the sliding connection of sealing plate and limiting part, it can achieve dustproof and waterproof effect, and the center of gravity is balanced by the support base to avoid the outward protrusion structure occupying space.
It improves the portability and ease of operation of the oxygen concentrator, avoids the problems of labor and easy tilting caused by the traditional handle-less design, maintains the small size of the device, is suitable for frequent home use, prevents scratches on the pulleys and damage to internal components, and enhances the safety and stability of use.
Smart Images

Figure CN224108470U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an oxygen generator technical field, specifically relates to a portable oxygen generator. BACKGROUND
[0002] Oxygen generator is a kind of machine for making oxygen, its principle is to utilize air separation technology;Firstly, air is compressed with high density, then gas-liquid separation is carried out at certain temperature by using the different condensing points of various components in air, and then rectification is carried out to separate oxygen and nitrogen;
[0003] In general, it is called oxygen generator because it is used for producing oxygen, and oxygen and nitrogen are widely used, so oxygen generator is widely used in national economy;With the continuous improvement of people's living standards and improvement, the demand for health gradually strengthens, and oxygen therapy becomes an important treatment and rehabilitation health care mode in ward and community rehabilitation, and gradually enters the family environment and uses, oxygen tank, oxygen bottle and other oxygen storage products are extremely inconvenient to use.Therefore, the household version of oxygen generator emerges as the times require, the handle of the oxygen generator on the market is usually fixed structure, if it needs to be carried or reduced in size for storage when traveling, it often occupies a large space, which leads to the inconvenience of carrying in the storage state. UTILITARIAN CONTENT
[0004] The utility model aims at overcoming the above technical deficiencies, providing a kind of portable oxygen generator, solve the technical problem that oxygen generator in the prior art, due to the handle on the body is fixed structure, lead to need to be carried or reduce in size for storage when traveling, occupy larger space, lead to the inconvenience of carrying in the storage state.
[0005] To achieve the above technical purpose, the utility model takes the following technical scheme:
[0006] Firstly, the utility model provides a kind of portable oxygen generator, comprising:
[0007] Shell, the shell top is provided with cavity, the cavity is provided with movable slot;
[0008] Clamping block, the cavity is provided with clamping block;
[0009] Sealing plate, the sealing plate is slidably connected in the movable slot, and is used to shield the cavity, the two sides of the sealing plate are penetrated through the shell and are slidably connected on the limiting piece, the cavity is rotatably connected with pull rod and can be located at first position or second position, when the pull rod is located at first position, the pull rod is perpendicular to the bottom of the cavity;When the pull rod is located at second position, the pull rod is parallel to the bottom of the cavity and is clamped on the clamping block.
[0010] In some embodiments, the movable groove comprises a top groove, a side edge through groove and a tail through hole; the cavity is provided with the top groove and the tail through hole respectively, and the side edges of the cavity are oppositely provided with the side edge through groove; the sealing plate is slidingly connected to the side edge through groove, and the tail end of the sealing plate penetrates through the tail through hole.
[0011] In some embodiments, the back surface of the cabinet is provided with limiting plates at the lower end of the sealing plate, and the first limiting column is fixed between the two limiting plates.
[0012] In some embodiments, the four corners of the bottom of the cabinet are provided with supporting bases, and the side edges of the cabinet are movably provided with movable cabinet doors.
[0013] In some embodiments, the sealing plate is slidingly connected to the side edge through groove, one end of the sealing plate is provided with a magnet block, and the magnet block is matched with the iron sheet inside the top groove.
[0014] In some embodiments, the end of the sealing plate is provided with a notch, a plastic clamping block is rotatably connected to the notch, a groove is formed in the plastic clamping block, and the groove is used for clamping the first limiting column.
[0015] In some embodiments, the two sides of the cabinet are provided with limiting members near the side edge through groove, the limiting member comprises a second limiting column and a spring strip, the sealing plate is slidingly connected to the second limiting column through a connecting block, and the second limiting column is wound with the spring strip.
[0016] In some embodiments, the connecting block is connected to the two sides of the sealing plate and slidingly connected to the side edge through groove, the connecting block is fixed with a sliding block, the sliding block is slidingly connected to the second limiting column, and the top of the sealing plate is further provided with a push block.
[0017] In some embodiments, the surface of the cabinet is provided with a display panel, and the lower side of the display panel is provided with an operation button.
[0018] In some embodiments, the cabinet is further provided with an oxygen outlet near the display panel, the back surface of the cabinet is provided with a charging port, the upper side of the charging port is provided with an air inlet in the cabinet, and the side surface of the cabinet is provided with an air outlet.
[0019] Compared with the prior art, the portable oxygen generator provided by the utility model has the advantages that, in the device, the lifting rod has two positions of vertical use state and parallel storage state through the rotating connection structure of the cavity, the movable groove and the lifting rod, force support during carrying is ensured, hidden storage during non-use is realized, space occupation or bumping of the convex structure is avoided, the sealing plate and the movable groove are slidably connected with the limiting piece, the cavity is closed through the sealing plate during storage of the lifting rod, dustproof and waterproof effects are achieved, the sealing plate is slid to quickly release the lifting rod when the lifting is needed, operation convenience is obviously improved, the lifting rod forms a stable stress point when extending from the center position of the top of the shell, the structure of the supporting base at the bottom of the shell is matched, the center of gravity of the machine body is kept balanced when being lifted by one hand, the problems of labor and inclination caused by the traditional handleless design and the need to embrace the machine body are solved, the lifting structure is built-in in the cavity at the top of the shell, the volume of the whole machine is not additionally increased, the miniaturization feature of the oxygen generator is kept, the oxygen generator is especially suitable for the use demand of frequent movement in the family scene, the problem of scratch on the floor caused by the pulley during movement is avoided, the lifting rod is ensured to be stable in the first position in the use state, and the lifting rod is completely matched with the bottom of the cavity in the second position, that is, the storage state, the stacking of the equipment or the placement against the wall is not affected. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a cavity inside schematic view of the portable oxygen generator provided by the utility model embodiment;
[0021] Figure 2 is a cavity inside schematic view of the portable oxygen generator provided by the utility model embodiment; Figure 1 is an enlarged schematic view of A in the cavity;
[0022] Figure 3 is a whole schematic view of the portable oxygen generator provided by the utility model embodiment;
[0023] Figure 4 is a lifting rod placing schematic view of the portable oxygen generator provided by the utility model embodiment;
[0024] Figure 5 is an air inlet schematic view of the portable oxygen generator provided by the utility model embodiment;
[0025] Figure 6 is a side schematic view of the portable oxygen generator provided by the utility model embodiment.
[0026] Marked for explanation: 1, the shell; 11, cavity; 12, movable slot; 121, top slot; 122, side through slot; 123, tail through hole; 13, limiting plate; 14, first limiting column; 15, support base; 16, movable cabinet door; 2, clamping block; 3, sealing plate; 31, suction iron block; 32, connecting block; 321, sliding block; 33, notch; 34, plastic clamping plate; 341, groove; 35, push block; 4, limiting piece; 41, second limiting column; 42, spring bar; 5, pull rod; 6, display panel; 61, operation button; 7, oxygen outlet; 8, charging port; 9, air inlet; 10, air outlet. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail with the help of the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.
[0028] In order to solve the technical problem that the oxygen generator in the prior art needs to be carried out or reduced in size for storage due to the fixed structure of the handle on the machine body, which occupies a large space and is inconvenient to carry in the storage state, the utility model provides a portable oxygen generator, which can realize convenient position moving of the oxygen generator and improve overall portability.
[0029] It should be noted that the portable oxygen generator of the utility model is used in but not limited to the field of oxygen generator and the like. In order to facilitate the description, in the utility model, only the portable oxygen generator is applied to the field of oxygen generator as an example for description, and the principle of the portable oxygen generator applied to other types of equipment is substantially the same as that applied to the field of oxygen generator, which will not be described here.
[0030] Please refer to Figure 1 , Figure 1 It is a structure diagram of a portable oxygen generator in an embodiment of the utility model. The portable oxygen generator comprises a shell 1, the top of the shell 1 is provided with a cavity 11, and a movable slot 12 is arranged in the cavity 11;
[0031] The clamping block 2 is arranged in the cavity 11.
[0032] The sealing plate 3 is slidably connected in the movable slot 12 and is used for shielding the cavity 11. The two sides of the sealing plate 3 penetrate through the shell 1 and are slidably connected to the limiting piece 4. The pull rod 5 is rotatably connected in the cavity 11 and can be located at a first position or a second position. When the pull rod 5 is located at the first position, the pull rod 5 is perpendicular to the bottom of the cavity 11. When the pull rod 5 is located at the second position, the pull rod 5 is parallel to the bottom of the cavity 11 and is clamped on the clamping block 2.
[0033] In the device, the cavity 11, the movable groove 12 and the rotating connection structure of the pull rod 5 make the pull rod 5 have two positions of vertical use state and parallel storage state, which not only ensures the stress support during carrying, but also realizes the hidden storage when not in use, avoids the space occupation or collision of the protruding structure, and then the sealing plate 3 and the sliding connection design of the movable groove 12 cooperate with the limiting piece 4. When the pull rod 5 is stored, the cavity 11 can be closed by the sealing plate 3 to achieve the dustproof and waterproof effect. When pulling is needed, the sealing plate 3 is slid open to quickly release the pull rod 5, the operation convenience is significantly improved, the pull rod 5 is stretched out from the center position of the top of the shell 1 to form a stable stress point, and the structure of the bottom support base 15 of the shell 1 makes the center of gravity of the machine body balanced when lifted by one hand, solves the problems of labor and easy inclination caused by the traditional handleless design which needs to embrace the machine body, embeds the pull structure in the top cavity 11 of the shell 1, does not increase the volume of the whole machine, maintains the miniaturization feature of the oxygen generator, especially suitable for the use demand of frequent movement in the family scene, avoids setting the pulley at the bottom of the shell 1, and the pulley is easy to scratch the floor during movement. By ensuring that the pull rod 5 is in the first position, the use state can be stable; and in the second position, that is, the storage state, it is completely matched with the bottom of the cavity 11, which does not affect the equipment stacking or wall placement. The present application sets a handle at the top of the shell 1, which is more convenient for the user to carry compared with setting a pulley at the bottom of the shell 1. First, the internal structure of the oxygen generator usually includes compressor, molecular sieve and other precision components, which need to avoid high-frequency vibration during operation. When the pulley directly contacts the ground, the vibration generated during movement may be transmitted to the internal structure, causing the molecular sieve filler to loosen, reducing the oxygen production efficiency, the compressor connecting piece to fatigue damage, and shortening the service life. If the pulley is not equipped with a locking device, the device may slide due to uneven ground or air flow reaction force during operation, affecting safety and oxygen stability. Second, the oxygen generator needs to maintain a low center of gravity design to ensure stability. Especially with oxygen cylinders, adding a pulley needs to raise the height of the machine body, which may increase the height of the whole machine and hinder the placement under the table or in the corner in the family scene. In addition, the pulley is difficult to move smoothly on a blanket, soft floor or uneven ground, and is not as flexible as a pull handle for direct handling.
[0034] In one embodiment, please refer to Figures 1-6In order to improve the activity efficiency of the sealing plate 3, the activity groove 12 comprises a top groove 121, a side edge through groove 122 and a tail through hole 123; the top groove 121 and the tail through hole 123 are respectively arranged in the cavity 11, the side edge through groove 122 is arranged opposite to the side edge of the cavity 11, the sealing plate 3 is slidingly connected to the side edge through groove 122, the tail end of the sealing plate 3 penetrates through the tail through hole 123, the two sides of the shell 1 and close to the side edge through groove 122 are provided with a limiting piece 4, the limiting piece 4 comprises a second limiting column 41 and a spring strip 42, the sealing plate 3 is slidingly connected to the second limiting column 41 through a connecting block 32, the spring strip 42 is wound on the second limiting column 41, the connecting block 32 is connected to the two sides of the sealing plate 3 and slidingly connected in the side edge through groove 122, a sliding block 321 is fixed on the connecting block 32, the sliding block 321 is slidingly connected in the second limiting column 41, and a push block 35 is further arranged on the top of the sealing plate 3.
[0035] In the embodiment, the cooperation of the side edge through groove 122 and the tail through hole 123 makes the two sides of the sealing plate 3 slidingly connected to the side edge through groove 122 and the tail end penetrating through the tail through hole 123, forming a three-point sliding support structure, ensuring that the sealing plate 3 does not deviate or jam during movement, improving the smoothness of operation, the sealing plate 3 is slidingly connected in the side edge through groove 122 through the connecting block 32, the sliding block 321 on the connecting block 32 slides in the second limiting column 41, making the opening and closing movement of the sealing plate 3 strictly along a straight line, avoiding tilting or friction loss caused by uneven force, the spring strip 42 wound on the second limiting column 41 stores energy when the sealing plate 3 is pulled open, and automatically rebounds to reset the sealing plate 3 to a closed state after releasing the sealing plate 3, reducing the complexity of manual operation, the elasticity of the spring strip 42 can absorb the impact force when the sealing plate 3 slides quickly, avoiding hard collision to damage the structure of the top groove 121 or the tail through hole 123, prolonging the service life, the sliding range of the sliding block 321 on the second limiting column 41 is limited by the extension length of the spring strip 42, ensuring that the sealing plate 3 will not be pulled out too much to separate from the side edge through groove 122 or the tail through hole 123, preventing structural failure, the tail end of the sealing plate 3 penetrates through the tail through hole 123, forming a mechanical limit, even if the spring strip 42 fails, the sealing plate 3 is still limited in the activity groove 12, avoiding complete falling off, when the sealing plate 3 is closed, the surface is flush with the top of the shell 1, without protruding structure, enhancing the beauty, the sealing plate 3 completely covers the cavity 11 when closed, preventing dust and liquid from entering the storage area of the lifting rod 5, the user only needs to pull the sealing plate 3 lightly to overcome the resistance of the spring strip 42 to expose the lifting rod 5, and then rotate for use; the sealing plate 3 automatically resets after the hand is released, the operation process is simple, the resistance of the spring strip 42 provides a clear "opening or closing" feeling, avoiding misoperation.
[0036] In one of the embodiments, please refer to Figure 5 and Figure 6For the convenience of limiting the sealing plate 3, the back of the shell 1 and located at the lower end of the sealing plate 3 is symmetrically provided with a limiting plate 13, and the first limiting column 14 is fixed between the two limiting plates 13, and the four corners of the bottom of the shell 1 are provided with the supporting base 15, and the side edge of the shell 1 is movably provided with the movable cabinet door 16, the sealing plate 3 is slidably connected in the side edge through slot 122, one end of the sealing plate 3 is provided with the suction iron block 31, the suction iron block 31 is matched with the iron sheet in the top slot 121, the end of the sealing plate 3 is provided with the notch 33, the notch 33 is rotatably connected with the plastic clamping plate 34, and the slot body 341 is provided on the plastic clamping plate 34, and the slot body 341 is used for clamping on the first limiting column 14.
[0037] In this embodiment, when the sealing plate 3 slides to the closed position, the end of the sealing plate 3 is attracted to the iron sheet inside the top slot 121 by magnetic force, forming a first relocking, ensuring that the sealing plate 3 will not be accidentally opened due to vibration or slight external force without human intervention, maintaining the sealing of the cavity 11, a notch 33 is provided at the end of the sealing plate 3, and a plastic clamping plate 34 is rotatably arranged in the notch 33, when the sealing plate 3 is completely closed, the slot body 341 on the plastic clamping plate 34 is clamped into the first limiting column 14, forming a second relocking, the elastic deformation of the plastic material allows slight deformation during clamping, which not only ensures the clamping force, but also avoids hard collision damage to the first limiting column 14, the two limiting plates 13 arranged symmetrically on the back of the shell 1 together fix the first limiting column 14, forming a stable triangular support structure to prevent the first limiting column 14 from bending or shifting due to frequent sliding of the sealing plate 3 or external force impact, wherein the first limiting column 14 has a dual function, the first is a guiding function, which cooperates with the plastic clamping plate 34 at the end of the sealing plate 3 to ensure accurate alignment when the sealing plate 3 is closed; the second is a stop function, which limits the clamping depth of the plastic clamping plate 34 to avoid the difficulty of separating the iron sheet from the magnetic block 31 caused by excessive pressing of the sealing plate 3, the support base 15 is arranged at the four corners of the bottom of the shell 1 to expand the grounding area and disperse the weight of the machine body, even when the lifting rod 5 is in a vertical use state, the whole machine can still be stable, preventing tipping due to gravity shift, the movable cabinet door 16 on the side of the shell 1 can be flexibly opened and closed, which is convenient for users to quickly repair or replace internal components such as humidification cups, etc., when the sealing plate 3 needs to be opened, the user only needs to exert a small external force to overcome the magnetic force between the magnetic block 31 and the iron sheet, which can start the sliding, avoiding the large operating force required by traditional mechanical buckles, especially suitable for elderly users, the plastic clamping plate 34 is made of elastic material, which provides a soft touch feedback when clamped, and can still maintain its function after wear, compared with metal buckles, it is more durable and noiseless, the magnetic attraction of the magnetic block 31 makes the sealing plate 3 tightly fit the shell 1, cooperating with the mechanical pressing of the plastic clamping plate 34, effectively blocking the intrusion of external dust and liquid into the cavity 11, protecting the rotating mechanism of the lifting rod 5, the clamping structure of the plastic clamping plate 34 and the first limiting column 14 is not easy to fail due to repeated deformation in long-term use, and the reinforcement of the limiting plate 13 to the first limiting column 14 further prolongs the service life of the overall structure, the limiting plate 13 and the first limiting column 14 are detachably connected, the first limiting column 14 is fixed between the two limiting plates 13, which can be assembled by screws or buckles, facilitating modular installation during production or replacing damaged parts later, the magnetic attraction assembly adopts standardized dimensions, which can be adapted to different models of shell 1, reducing the complexity of supply chain management.
[0038] In one embodiment, please refer to Figures 1-6In order to improve the working efficiency of the equipment, the surface of the shell 1 is provided with a display panel 6, the lower side of the display panel 6 is provided with an operation button 61, the display panel 6 is provided with an oxygen outlet 7, the back of the shell 1 is provided with a charging port 8, the upper side of the charging port 8 is provided with an air inlet 9, and the side of the shell 1 is provided with an air outlet 10.
[0039] In the embodiment, the ambient air is sucked into the inside of the oxygen generator through the air inlet 9 of the back, the entering air first passes through the primary filter in the inside of the oxygen generator, removes dust, particulate matter and other impurities, protects the subsequent precision components such as molecular sieve or compressor from pollution, the filtered air is compressed by the built-in compressor, the air density is increased, the subsequent separation is facilitated, heat is generated in the compression process, the hot air is discharged through the air outlet 10 on the side of the shell 1, the internal temperature is prevented from being too high, the high-pressure air enters the molecular sieve tower, the molecular sieve selectively adsorbs nitrogen, carbon dioxide and other gases, and allows oxygen to pass through, the oxygen generator in the prior art usually adopts a double molecular sieve tower design, when one tower adsorbs nitrogen, the other tower releases the adsorbed nitrogen by reducing pressure and discharges to the air outlet 10, realizing continuous oxygen production, the high-concentration oxygen after separation is output from the oxygen outlet 7 arranged on the shell 1, the user can inhale oxygen through a nasal oxygen tube or a mask, the oxygen flow is adjusted through the operation button 61 below the display panel 6, and the charging port 8 on the back of the shell 1 is connected with a power adapter to supply power for the compressor and the control system.
[0040] In order to better understand the utility model, the following is combined with Figures 1 to 6 The technical scheme of the utility model is described in detail:
[0041] When it needs to be moved: the user pushes the end of the sealing plate 3 along the direction of the side edge through groove 122 by pushing block 35, the connecting block 32 drives the sliding block 321 to move linearly on the second limiting column 41, the spring strip 42 is extruded to store energy, the suction iron block 31 is separated from the magnetic attraction fixing with the internal iron sheet of the top groove 121, and the groove body 341 of the plastic clamping plate 34 is separated from the first limiting column 14. When the sealing plate 3 slides to the tail through hole 123 limiting position, the sealing plate 3 is stroke limited by the pushing block 35, the cavity 11 is exposed, the lifting rod 5 is in the second position, that is, parallel to the bottom of the cavity 11, in the horizontal storage state, the lifting rod 5 is clamped in the clamping block 2, the staff holds the free end of the lifting rod 5 and exerts force upward to make it rotate around the rotating shaft, when the lifting rod 5 is perpendicular to the bottom of the cavity 11, the lifting rod 5 is in the first position, at this time, the lifting rod 5 is in the vertical state, the user holds the lifting rod 5 with one hand, uses the connecting point with the top center of the shell 1 to keep the center of gravity balanced, the supporting base 15 at the bottom of the shell 1 is off the ground, and the weight of the whole machine is transmitted to the palm of the user through the lifting rod 5, since the lifting rod 5 is located at the top center, the risk of machine body inclination caused by traditional ring embrace carrying is avoided.
[0042] When not need to move: the user makes the pull rod 5 rotate, rotates the pull rod 5 to the bottom parallel with the cavity 11 and is engaged in the clamping block 2, at this time the pull rod 5 is completely attached to the bottom of the cavity 11, loosens the sealing plate 3, the elastic retraction force of spring strip 42 is automatically pulled, the connecting block 32 is reversed along the second limit post 41, the sealing plate 3 is reset through the side edge through groove 122 and the tail through hole 123, the suction iron block 31 and the iron sheet are reattached, form the first relocking, the staff flips the plastic card plate 34, makes its groove body 341 card into the first limit post 14, completes the second relocking, at this time the sealing plate 3 completely covers the cavity 11, the surface is flush with the top of the shell 1, the pull rod 5 is completely hidden, no external convex structure, avoids the interference of knock or stacking, improves the overall aesthetic property.
[0043] The specific embodiment of the utility model described above does not constitute the limitation to the protection scope of the utility model. Any various other corresponding changes and changes made according to the technical concept of the utility model should be contained in the protection scope of the utility model claim.
Claims
1. A portable oxygen generator, characterized by comprising: Include: The shell, the top of the shell is provided with a cavity, the cavity is provided with a movable slot; The clamping block is provided with a clamping block in the cavity; The sealing plate is slidably connected in the movable slot and used to shield the cavity, the sealing plate is penetrated through the shell on both sides and slidably connected to the limiting piece, the cavity is rotatably connected with a pull rod and can be located at a first position or a second position, when the pull rod is located at the first position, the pull rod is perpendicular to the bottom of the cavity; when the pull rod is located at the second position, the pull rod is parallel to the bottom of the cavity and clamped on the clamping block.
2. The portable oxygen generator of claim 1, wherein: The movable slot includes a top slot, a side edge through slot and a tail through hole; the cavity is respectively provided with a top slot and a tail through hole, the side edge of the cavity is provided with a side edge through slot, the sealing plate is slidably connected to the side edge through slot, and the tail end of the sealing plate is penetrated through the tail through hole.
3. The portable oxygen generator of claim 2, wherein: The back of the shell and the lower end of the sealing plate are symmetrically provided with limiting plates, and a first limiting column is fixed between the two limiting plates.
4. The portable oxygen generator of claim 1, wherein: The four corners of the bottom of the shell are provided with supporting bases, and the side edge of the shell is movably provided with a movable cabinet door.
5. The portable oxygen generator of claim 3, wherein: The sealing plate is slidably connected in the side edge through slot, one end of the sealing plate is provided with a magnet block, and the magnet block is matched with an iron sheet in the top slot.
6. The portable oxygen generator of claim 5, wherein: The end of the sealing plate is provided with a notch, a plastic clamping block is rotatably connected in the notch, a groove is formed in the plastic clamping block, and the groove is used for clamping the first limiting column.
7. The portable oxygen generator of claim 5, wherein: The limiting piece is provided on the side of the shell and close to the side edge through slot, the limiting piece includes a second limiting column and a spring strip, the sealing plate is slidably connected to the second limiting column through a connecting block, and the second limiting column is wound with a spring strip.
8. The portable oxygen generator of claim 7, wherein: The connecting block is connected to the two sides of the sealing plate and slidably connected in the side edge through slot, a sliding block is fixed on the connecting block, the sliding block is slidably connected in the second limiting column, and a push block is further arranged on the top of the sealing plate.
9. The portable oxygen generator of claim 1, wherein: The surface of the shell is provided with a display panel, and the lower side of the display panel is provided with an operation button.
10. The portable oxygen generator of claim 9, wherein: An oxygen outlet is further arranged on the shell and close to the display panel, a charging port is arranged on the back of the shell, an air inlet is arranged above the charging port and in the shell, and an air outlet is arranged on the side of the shell.