Humidifying cup for oxygen generator and oxygen generator thereof

Abstract

The utility model discloses a humidifying cup for oxygen generator and oxygen generator, the humidifying cup also includes anti-splash safety shielding device, anti-splash safety shielding device includes anti-splash cover, anti-splash cover is placed in the cup body, the anti-splash cover is arranged to be located above the liquid level of the water, and the anti-splash cover is located above the liquid level of the water. A ventilation space is formed between the anti-splashing cover and the cup body so as to form an oxygen humidifying path from the air inlet connector and the air guide pipe to water liquid and then through the ventilation space and the air outlet connector, and the ventilation space and the air outlet connector are arranged on the vertical projection, facing the cup cover, of the cup body in a staggered mode. According to the humidifying cup, splashed water drops under large impact can be prevented from being directly splashed to the air outlet connector from the ventilation space, so that water and the water drops are effectively prevented from entering the air outlet connector of the humidifying cup and finally entering the nasal cavity of a user, and the use experience of the user is improved.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, specifically to a humidification cup for an oxygen generator and the oxygen generator thereof. Background Technology

[0002] In the fields of modern medicine and home healthcare, oxygen concentrators are increasingly widely used as an important medical device. To prevent excessive dryness of the nasal cavity when using an oxygen concentrator, it is usually used in conjunction with the humidification function of a humidification cup. The traditional working mode of the oxygen concentrator humidification cup is as follows: water is filled in the humidification cup, the air inlet connector of the humidification cup is connected to the air delivery tube, the air delivery tube is inserted into the water, oxygen flows into the water through the air delivery tube in the humidification cup, forms bubbles in the water, the bubbles rise to the surface of the water in the humidification cup and burst, the humidified oxygen flows out from the air outlet connector of the humidification cup, and finally flows into the user's end through the nasal cannula.

[0003] In the process of developing this utility model, the applicant discovered that traditional oxygen concentrator humidifier cups sometimes experience humidification water splashing into the air outlet connector during operation. After research, it was found that this was caused by high water level and large oxygen flow rate. This problem can cause water droplets to enter the user's nasal cavity, posing a certain risk of use.

[0004] In view of this, how to solve the problem of humidification water splashing into the user's nasal cavity during the operation of traditional oxygen concentrator humidification cups has become the research topic to be solved by this utility model. Utility Model Content

[0005] The purpose of this invention is to provide a humidification cup for an oxygen generator and the oxygen generator thereof.

[0006] To achieve the above objectives, the first aspect of this utility model proposes a humidification cup for an oxygen concentrator. The humidification cup has a body for containing liquid water and a lid on the body. The lid has an air inlet connector, an air guide tube, and an air outlet connector. The air inlet connector is connected to the air guide tube, and the bottom of the air guide tube is positioned below the surface of the liquid water. Its innovation lies in:

[0007] The humidification cup also includes a splash-proof safety shielding device, which includes a splash-proof cover placed inside the cup body. The splash-proof cover is arranged above the liquid surface of the water. There is a ventilation space between the splash-proof cover and the cup body to form an oxygen humidification path that goes through an air inlet connector and an air guide pipe into the water, and then through the ventilation space and an air outlet connector. The ventilation space and the air outlet connector are offset in the vertical projection of the cup body toward the cup cover.

[0008] To achieve the above objectives, a second aspect of this utility model provides an oxygen generator that uses a humidification cup as described in the first aspect of this utility model.

[0009] The relevant contents of this utility model are explained as follows:

[0010] 1. In the above-mentioned technical solution of this utility model, addressing the problem of traditional oxygen concentrator humidification cups causing humidification water to splash into the user's nasal cavity during operation, resulting in a risk, an innovative humidification cup for an oxygen concentrator and an oxygen concentrator using the humidification cup are designed. The humidification cup incorporates a splash-proof safety shielding device, which includes a splash-proof cover placed inside the cup body. The splash-proof cover is arranged above the liquid surface of the water, and a ventilation space is provided between the splash-proof cover and the cup body to form an air inlet. The oxygen humidification path, from the head and air guide tube into the liquid, through the ventilation space and air outlet, is designed so that when the bubbles generated in the humidified water rise and burst, the splashing water droplets are blocked by the anti-splash cover structure. Furthermore, the ventilation space and the air outlet are offset in the vertical projection of the cup body towards the cup lid. This prevents water droplets from splashing directly from the ventilation space to the air outlet under large impacts, thus effectively preventing water and water droplets from entering the air outlet of the humidification cup and ultimately entering the user's nasal cavity, thereby improving the user experience.

[0011] 2. In the above technical solution, the anti-splash cover is provided with a buoyancy block placed in the liquid. The buoyancy block provides buoyancy to the anti-splash cover, ensuring it remains above the liquid surface. This ensures that water droplets generated when bubbles rise and burst are always covered by the anti-splash cover. The entire anti-splash cover rises synchronously with the water level in the humidification cup, bringing the top of the anti-splash cover closer to the air outlet of the humidification cup. Even with excessive water in the humidification cup, it effectively prevents water droplets from splashing.

[0012] 3. In the above technical solution, the bottom of the anti-splash cover is provided with a first mounting groove, and the buoyancy block can be replaced by interference fit in the first mounting groove to better assemble the buoyancy block. The buoyancy block is made of a high buoyancy material and has a certain elasticity. It can be directly snapped into the buoyancy block mounting groove by interference fit. The size and material of the buoyancy block can be selected according to the capacity of the humidification cup and the weight of the anti-splash safety shield.

[0013] 4. In the above technical solution, a limiting groove is provided on one side of the inner wall of the cup body and a guide part is provided on the other side. The cooperation between the limiting groove and the guide part provides guidance and limitation for the upward displacement of the anti-splash cover, so that the anti-splash cover can only move up and down along the guide direction, avoiding the anti-splash cover from tipping over or tilting, thereby providing a stable function to prevent water droplets from splashing.

[0014] 5. In the above technical solution, a pressure relief valve is provided on the cup lid, and a plug is provided on the upper surface of the anti-splash cover at the position corresponding to the air outlet, the plug matching the shape of the air outlet. When the user adds too much water, the anti-splash cover rises to its limit height under the buoyancy of the buoyancy block. At this time, the plug on the anti-splash cover will directly block the air outlet of the humidification cup, preventing oxygen from flowing out from this position. If the oxygen generator is still working at this time, as oxygen continues to enter the humidification cup, the pressure inside the cup gradually increases. When it reaches the limit, the pressure relief valve of the humidification cup will release pressure and simultaneously emit a whistle to remind the user. This method can effectively prevent the problem of user misoperation causing the water level to be too high, which would then allow water to enter the air outlet of the humidification cup and ultimately enter the user's nasal cavity.

[0015] 6. In the above technical solution, a second mounting groove is provided on the upper surface of the splash guard corresponding to the position of the air outlet connector. The plug can be replaced and interference-fitted into the second mounting groove. The plug is made of elastic medical-grade silicone material. This allows for better assembly of the plug and a more snug fit when the plug is in place of the air outlet connector, improving the sealing between the two and enabling the pressure relief valve to function properly.

[0016] 7. In the above technical solution, the bottom of the anti-splash cover has a liquid guide portion facing the liquid surface, so that splashed water droplets can converge along the liquid guide portion to form a water flow, and drip back into the cup body of the cup under the influence of gravity.

[0017] 8. In the above technical solution, the anti-splash cover is an umbrella-shaped structure, and the liquid guiding part is a plurality of guiding ribs set on the lower surface of the umbrella-shaped structure. Usually, the air guide tube is set in a more central position, and bubbles are also generated closer to the center. By making the anti-splash cover an umbrella-shaped structure, the splashing water droplets generated by most of the bubbles near the center can be covered by the umbrella top inside the umbrella structure, thereby improving the anti-splash effect. Furthermore, by setting the liquid guiding part as a plurality of guiding ribs on the lower surface of the umbrella-shaped structure, when water droplets splash upward, they are blocked by the umbrella-shaped structure on the anti-splash cover, gather inside the umbrella-shaped structure, form a stream of water, and flow along the guiding ribs on the inner wall of the umbrella-shaped structure to the edge under the influence of gravity, and finally drip back into the water in the humidifying cup.

[0018] 9. In the above technical solution, an opening groove is provided on the anti-splash cover for the air guide tube to pass through. Part of the outer periphery of the air guide tube is snapped into the opening groove. Except for the part occupied by the air guide tube, the opening groove forms the ventilation space with the cup body. The opening groove is treated with a smooth arc to make the assembly of the anti-splash cover and the air guide tube, as well as the anti-splash cover, smoother during the rising and falling process. Part of the opening groove is used to pass through the air guide tube, and part of it is used to form the ventilation space. The design is more ingenious and reasonable.

[0019] 10. In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] 11. In this utility model, the terms “center”, “upper”, “lower”, “axial”, “bottom”, “inner”, “outer”, etc., indicate the orientation or positional relationship based on the orientation or positional assembly relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] 12. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] Due to the application of the above solution, this utility model has the following advantages and effects compared with the prior art:

[0023] The present invention addresses the problem of traditional oxygen concentrator humidifier cups causing humidified water to splash into the user's nasal cavity during operation, thus posing a risk. It innovatively designs a humidifier cup for oxygen concentrators and an oxygen concentrator using this humidifier cup. The humidifier cup incorporates a splash-proof safety shielding device, including a splash-proof cover placed inside the cup body. The splash-proof cover is positioned above the liquid surface, and a ventilation space exists between the splash-proof cover and the cup body to allow air to pass through an air inlet connector. The air duct leads into the liquid water and then through the ventilation space and the air outlet to form an oxygen humidification path. This design ensures that when bubbles generated in the humidified water rise and burst, the resulting splashing water droplets are blocked by the anti-splash cover structure. Furthermore, the ventilation space and the air outlet are offset in the vertical projection of the cup body towards the cup lid. This prevents water droplets from splashing directly from the ventilation space to the air outlet under large impacts, effectively preventing water and water droplets from entering the humidification cup's air outlet and ultimately entering the user's nasal cavity, thus improving the user experience. Attached Figure Description

[0024] Figure 1 This is an explosion diagram of the humidification cup according to an embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional view of the humidification cup in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the cup body in an embodiment of the present utility model;

[0027] Figure 4 This is a three-dimensional schematic diagram (inverted view) of the anti-splash cover in an embodiment of this utility model;

[0028] Figure 5 This is a three-dimensional schematic diagram (front view) of the anti-splash cover in an embodiment of this utility model.

[0029] The parts shown in the above attached diagram are illustrated below:

[0030] 1. Cup body; 11. Limiting slot;

[0031] 2. Cup lid;

[0032] 3. Air intake connector;

[0033] 4. Air delivery tube;

[0034] 5. Air outlet connector;

[0035] 6. Splash guard;

[0036] 600. Ventilation space; 610. Opening slot;

[0037] 61. First mounting slot; 62. Second mounting slot; 63. Guide section; 64. Guide rib;

[0038] 7. Buoyancy blocks;

[0039] 8. Plug;

[0040] 9. Pressure relief valve. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] This invention aims to solve the problem of water splashing into the user's nasal cavity during operation of traditional oxygen concentrator humidification cups, which poses a risk. It innovatively designs a humidification cup for oxygen concentrators and an oxygen concentrator using the humidification cup to prevent water droplets from splashing into the user's nasal cavity when the humidification function is activated, thus avoiding adverse effects.

[0043] Example 1, as Figures 1 to 5 As shown, Embodiment 1 of this utility model discloses a humidification cup. The humidification cup has a cup body 1 for containing liquid water and a cup lid 2 disposed on the cup body 1. The cup lid 2 has an air inlet connector 3, an air guide pipe 4, and an air outlet connector 5. The air inlet connector 3 is connected to the air guide pipe 4. The bottom of the air guide pipe 4 is placed below the liquid surface of the liquid water. The humidification cup also includes a splash-proof safety shielding device, which includes a splash-proof cover 6. The splash-proof cover 6 is placed inside the cup body 1 and is arranged above the liquid surface of the liquid water. There is a ventilation space 600 between the splash-proof cover and the cup body 1 to form an oxygen humidification path that goes through the air inlet connector 3 and the air guide pipe 4 to the liquid water and then through the ventilation space 600 and the air outlet connector 5. The ventilation space 600 and the air outlet connector 5 are offset in the vertical projection of the cup body 1 toward the cup lid 2.

[0044] Through the implementation of Embodiment 1 of this utility model, a splash-proof safety shielding device is designed in the humidification cup. The splash-proof safety shielding device includes a splash-proof cover 6, which is placed inside the cup body 1. The splash-proof cover 6 is arranged above the liquid surface of the water. There is a ventilation space 600 between the splash-proof cover and the cup body 1 to form an oxygen humidification path that goes through the air inlet connector 3, the air guide pipe 4 into the water, and then through the ventilation space 600 and the air outlet connector 5. This design allows the splashing water droplets generated when the bubbles generated in the humidification water rise and burst to be blocked by the structure of the splash-proof cover 6. Furthermore, the ventilation space 600 and the air outlet connector 5 are offset on the vertical projection of the cup body 1 towards the cup lid 2, thereby preventing splashing water droplets under large impact from directly spraying from the ventilation space 600 to the air outlet connector 5. This effectively prevents water and water droplets from entering the humidification cup air outlet connector 5 and ultimately entering the user's nasal cavity, thus improving the user experience.

[0045] In the above embodiment one of this utility model, as Figure 1 , Figure 2As shown, the anti-splash cover 6 is equipped with a buoyancy block 7 placed in the liquid. The buoyancy block 7 provides buoyancy to keep the anti-splash cover 6 always above the surface of the liquid. This ensures that the water droplets generated when bubbles rise and burst are always covered by the anti-splash cover 6. The entire anti-splash cover 6 rises synchronously with the water level in the humidification cup, and the distance between the top of the anti-splash cover 6 and the air outlet 5 of the humidification cup will become closer. Even if too much water is added to the humidification cup, it can still effectively prevent water droplets from splashing.

[0046] More specifically, such as Figure 3 As shown, the bottom of the anti-splash cover 6 is provided with a first mounting groove 61. The buoyancy block 7 can be replaced by an interference fit in the first mounting groove 61 to better assemble the buoyancy block 7. The buoyancy block 7 is made of a high buoyancy material and has a certain elasticity. It can be directly snapped into the mounting groove of the buoyancy block 7 through interference fit. The size and material of the buoyancy block 7 can be selected according to the capacity of the humidification cup and the weight of the anti-splash safety shield.

[0047] In the above embodiment one of this utility model, as Figure 3 , Figure 4 As shown, between the inner wall of the cup body 1 and the anti-splash cover 6, a limiting groove 11 is provided on one side and a guide part 63 is provided on the other side. The cooperation between the limiting groove 11 and the guide part 63 provides guidance and limitation for the upward displacement of the anti-splash cover 6, so that the anti-splash cover 6 can only move up and down along the guide direction, avoiding the anti-splash cover 6 from tipping over or tilting, thereby providing a stable function to prevent water droplets from splashing.

[0048] For example, such as Figure 3 , Figure 4 As shown, a limiting groove 11 is vertically provided on one side of the inner wall of the cup body 1, and a vertical guide rib is provided at a corresponding position on the same side of the anti-splash cover 6 to serve as a guide part 63, thereby ensuring that the anti-splash cover 6 can only move vertically up and down. Of course, it is also possible to provide a vertical guide rib on one side of the inner wall of the cup body 1 and a vertical limiting groove 11 at a corresponding position on the same side of the anti-splash cover 6.

[0049] In the above embodiment one of this utility model, as Figure 1 , Figure 2As shown, a pressure relief valve 9 is provided on the cup lid 2, and a plug 8 is provided on the upper surface of the anti-splash cover 6 at the position corresponding to the air outlet 5. The plug 8 matches the shape of the air outlet 5. When the user adds too much water, the anti-splash cover 6 rises to its limit height under the buoyancy of the buoyancy block 7. At this time, the plug 8 on the anti-splash cover 6 will directly block the air outlet 5 of the humidification cup, preventing oxygen from flowing out from this position. If the oxygen generator is still working at this time, as oxygen continues to enter the humidification cup, the pressure inside the cup body 1 gradually increases. When it reaches the limit value, the pressure relief valve of the humidification cup will release pressure and emit a whistle to remind the user. This method can effectively prevent the problem of the water level being too high due to user misoperation, which would then allow water to enter the air outlet 5 of the humidification cup and eventually enter the user's nasal cavity. Specifically, the plug 8 can be a mushroom-shaped plug.

[0050] Furthermore, such as Figure 5 As shown, a second mounting groove 62 is provided on the upper surface of the anti-splash cover 6 at the position corresponding to the air outlet 5. The plug 8 can be replaced and interference-fitted into the second mounting groove 62. The plug 8 is made of elastic medical-grade silicone material. This is to better assemble the plug 8 and make it fit more snugly when it is plugged into the air outlet 5, improving the sealing between the two and allowing the pressure relief valve to function properly.

[0051] In the above embodiment one of this utility model, as Figure 4 As shown, the bottom of the anti-splash cover 6 has a liquid guide portion facing the liquid surface, so that splashed water droplets can converge along the liquid guide portion to form a water flow, and drip back into the cup body 1 of the cup under the influence of gravity.

[0052] Specifically, such as Figure 4 As shown, the anti-splash cover 6 has an umbrella-shaped structure, and the liquid guiding part consists of multiple guiding ribs 64 set on the lower surface of the umbrella-shaped structure. Usually, the air guide tube 4 is located in a more central position, and bubbles are also generated closer to the center. By making the anti-splash cover 6 an umbrella-shaped structure, the splashing water droplets generated by most of the bubbles near the center can be covered by the umbrella top inside the umbrella structure, thereby improving the anti-splash effect. Furthermore, by setting the liquid guiding part as multiple guiding ribs 64 on the lower surface of the umbrella-shaped structure, when water droplets splash upward, they are blocked by the umbrella-shaped structure on the anti-splash cover 6, and gather inside the umbrella-shaped structure to form a stream of water. Under the influence of gravity, the water flows along the guiding ribs 64 on the inner wall of the umbrella-shaped structure to the edge, and finally drips back into the water in the humidifying cup 1.

[0053] In the above embodiment one of this utility model, as Figure 4 , Figure 5As shown, an opening groove 610 is provided on the anti-splash cover 6 for the air guide tube 4 to pass through. Part of the outer periphery of the air guide tube 4 is snapped into the opening groove 610. Except for the part occupied by the air guide tube 4, the opening groove 610 forms the ventilation space 600 with the cup body 1. The opening groove 610 is treated with a smooth arc to make the assembly of the anti-splash cover 6 and the air guide tube 4, as well as the anti-splash cover 6, smoother during the rising and falling process. Part of the opening groove 610 is used to pass through the air guide tube 4, and part of it is used to form the ventilation space 600. The design is more ingenious and reasonable.

[0054] Example 2: This utility model discloses an oxygen generator, which uses the humidification cup as described in Example 1.

[0055] Example 3: This utility model discloses a humidification cup for use in an oxygen generator. The humidification cup mainly consists of a cup body 1, a cup lid 2, an air guide tube 4, and a splash guard 6. The splash guard 6 has an umbrella-shaped structure with multiple guide ribs 64 on the lower inner surface of the umbrella-shaped structure. During operation, an appropriate amount of water is added to the humidification cup. Oxygen flows through the air inlet 3 of the humidification cup, through the air guide tube 4, and enters the humidified water to generate bubbles. When the bubbles rise and burst, they generate splashing water droplets. As the water droplets splash upward, they are blocked by the umbrella-shaped structure on the splash guard 6, accumulating inside the umbrella-shaped structure to form a stream of water. Under the influence of gravity, the water flows along the guide ribs 64 on the inner wall of the umbrella-shaped structure to the edge, and finally drips back into the water in the humidification cup body 1.

[0056] A buoyancy block 7 is installed at the bottom of the anti-splash cover 6 in the humidification cup assembly. When the water level in the humidification cup rises, the buoyancy block 7 causes the entire anti-splash cover 6 to rise along the limiting groove 11 on the side of the humidification cup body 1. The umbrella-shaped structure on the anti-splash cover 6 gets closer to the air outlet 5 of the humidification cup, effectively preventing water droplets from splashing. When the user adds too much water, the anti-splash cover 6 rises to its maximum height under the buoyancy of the buoyancy block 7. At this time, the mushroom plug 8 on the bracket will directly block the air outlet 5 of the humidification cup, preventing oxygen from flowing out from this position. If the oxygen generator is still working at this time, as oxygen continues to enter the humidification cup, the pressure inside the cup body 1 gradually increases. When it reaches the limit, the pressure relief valve of the humidification cup will release pressure and emit a whistle to remind the user. This method can effectively prevent the problem of the water level being too high due to user misoperation, which could cause water to enter the air outlet 5 of the humidification cup and eventually enter the user's nasal cavity.

[0057] In the humidification cup assembly, the buoyancy block 7 is made of a high-buoyancy material and has a certain degree of elasticity, allowing it to be directly fitted into the first mounting slot 61 via interference fit. The mushroom-shaped plug 8 is made of high-elasticity medical-grade silicone material and also has a certain degree of elasticity, allowing it to be directly fitted into the second mounting slot 62 via interference fit. The anti-splash cover 6 has guide ribs on its side serving as guide parts 63, and the inner side of the humidification cup body 1 has a matching limiting groove 11, ensuring that the anti-splash cover 6 can only move up and down along the groove during operation.

[0058] Through the implementation of the above embodiments of this utility model, a splash-proof safety shielding device is designed in the humidification cup to prevent water droplets from splashing into the humidification cup vent connector 5. An splash-proof safety shielding device is added to the humidification cup to prevent excessive water addition and to prevent water from entering the humidification cup vent connector 5 due to excessive water level, thereby achieving the purpose of this utility model.

[0059] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A humidification cup for an oxygen generator, the humidification cup having a cup body (1) for containing liquid water and a cup lid (2) disposed on the cup body (1), the cup lid (2) having an air inlet connector (3), an air guide pipe (4), and an air outlet connector (5), the air inlet connector (3) being connected to the air guide pipe (4), the bottom of the air guide pipe (4) being placed below the liquid surface of the liquid water, characterized in that: The humidification cup also includes a splash-proof safety shielding device, which includes a splash-proof cover (6) placed inside the cup body (1). The splash-proof cover (6) is arranged above the liquid surface of the water. There is a ventilation space (600) between the splash-proof cover (6) and the cup body (1) to form an oxygen humidification path through the air inlet (3), the air guide pipe (4) into the water, and then through the ventilation space (600) and the air outlet (5). The ventilation space (600) and the air outlet (5) are offset on the vertical projection of the cup body (1) toward the cup lid (2).

2. The humidification cup for an oxygen concentrator according to claim 1, characterized in that: The splash guard (6) is provided with a buoyancy block (7) placed in the water, and the buoyancy block (7) provides the splash guard (6) with buoyancy so that it is always above the surface of the water.

3. The humidification cup for an oxygen concentrator according to claim 2, characterized in that: The bottom of the splash guard (6) is provided with a first mounting groove (61), and the buoyancy block (7) can be replaced by an interference fit in the first mounting groove (61).

4. The humidification cup for an oxygen concentrator according to claim 2, characterized in that: Between the inner wall of the cup body (1) and the anti-splash cover (6), one is provided with a limiting groove (11) and the other is provided with a guide part (63). The cooperation between the limiting groove (11) and the guide part (63) provides guidance and limitation for the upward displacement of the anti-splash cover (6).

5. The humidification cup for an oxygen concentrator according to claim 2, characterized in that: The cup lid (2) is provided with a pressure relief valve (9), and the anti-splash cover (6) is provided with a plug (8) at the position corresponding to the air outlet (5) on the upper surface. The plug (8) matches the shape of the air outlet (5).

6. The humidification cup for an oxygen concentrator according to claim 5, characterized in that: The splash guard (6) has a second mounting groove (62) on its upper surface corresponding to the position of the air outlet (5). The plug (8) can be replaced by an interference fit in the second mounting groove (62). The plug (8) is made of elastic medical silicone material.

7. The humidification cup for an oxygen concentrator according to claim 1, characterized in that: The bottom of the anti-splash cover (6) has a liquid guide portion facing the liquid surface.

8. The humidification cup for an oxygen concentrator according to claim 7, characterized in that: The splash guard (6) has an umbrella-shaped structure, and the liquid guide part consists of multiple guide ribs (64) arranged on the lower surface of the umbrella-shaped structure.

9. The humidification cup for an oxygen concentrator according to claim 8, characterized in that: An opening groove (610) is provided on the anti-splash cover (6) for the air guide tube (4) to pass through. A portion of the outer periphery of the air guide tube (4) is engaged with the opening groove (610). The opening groove (610) except for the portion occupied by the air guide tube (4) forms the ventilation space (600) between itself and the cup body (1).

10. An oxygen generator, characterized in that: The oxygen generator uses the humidification cup as described in claim 9.

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