Oxygen cap

Abstract

The oxygen cap comprises a cap body and an oxygen generator, the cap body comprises a cap cylinder, a top plate and a cap brim plate, the top plate seals one end of the cap cylinder, the cap brim plate is provided with a wearing through hole, the inner edge of the wearing through hole is connected with the other end of the cap cylinder, the oxygen generator is arranged on the cap brim plate, and a preset interval is formed between the oxygen generator and the cap cylinder. In the oxygen cap provided by the utility model, the battery module can supply power to the oxygen generator, and oxygen generated by the oxygen generator is conveyed to the air tap through the oxygen pipe, so that a user holding the air tap can inhale oxygen conveniently, and portable oxygen inhale in scenes such as plateau operation and special environment operation is realized; moreover, the oxygen pipe and the air tap are designed in a split manner, so that the air tap can be independently detached and replaced after being used by a user, and the air tap can be quickly cleaned and sold or leased after being recycled; for example, the oxygen cap can be rented in the plateau and other areas, and the battery module, the air tap, the oxygen generator and other modules are replaced after recycling and then quickly put into use for the next time, so that the oxygen cap is reused.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen cap technical field, specifically, relate to an oxygen cap. BACKGROUND

[0002] In order to improve the convenience of oxygen inhalation in the scene such as highland travel, special environment operation, oxygen cap this portable oxygen inhalation equipment gradually becomes the mainstream choice, the existing oxygen cap usually includes the cap body for wearing on the head of user and the oxygen generator device fixed on the cap body, the oxygen generator device can be based on electrolysis water principle, water is decomposed into oxygen and hydrogen, and oxygen is provided to user to use, it also can be through compressed air principle, oxygen and other gas components are separated, to obtain higher purity oxygen for user to use.

[0003] However, the existing oxygen cap is often designed as a disposable product, and the user will usually discard the oxygen cap after use (for example, after highland travel), which not only causes environmental pollution, but also causes material waste. Therefore, how to provide a recyclable oxygen cap has become a technical problem to be solved in the field. SUMMARY

[0004] The utility model aims at solving one of the technical problems in the related art to some extent. To this end, the utility model provides an oxygen cap, which has a detachable air nozzle and can be reused.

[0005] To achieve the above-mentioned purpose, the utility model provides an oxygen cap, which comprises a cap body, an oxygen generator, a battery module, an oxygen pipe and an air nozzle, the oxygen generator and the battery module are fixedly arranged on the cap body, the oxygen generator is electrically connected with the battery module, the first end of the oxygen pipe is connected with the oxygen generator, the air nozzle is detachably connected with the second end of the oxygen pipe, the inner cavity of the air nozzle is communicated with the oxygen pipe, and a plurality of air holes for conducting the inner cavity of the air nozzle with the outside are formed on the air nozzle.

[0006] Optionally, the cap body comprises a cap barrel, a top plate and a brim plate, the top plate seals one end of the cap barrel, the brim plate has a wearing through hole, the inner edge of the wearing through hole is connected with the other end of the cap barrel, the oxygen generator and the battery module are arranged on the brim plate, and a preset interval is formed between the oxygen generator and the cap barrel.

[0007] Optionally, the material of the cap body is leather, plastic or carbon fiber.

[0008] Optionally, the diameter of the cap barrel gradually decreases along the direction close to the top plate.

[0009] Optionally, the brim plate has a first fixing groove, and the oxygen generator is detachably fixed in the first fixing groove.

[0010] Optionally, the first fixing groove is in a shape of a rounded rectangle.

[0011] Optionally, the brim plate has a first protruding strip extending along the surface of the brim plate and forming the first fixing groove.

[0012] Optionally, the side wall of the first fixing groove has a plurality of first clamping slots, and the surface of the oxygen generator has a plurality of first buckles, which are one-to-one correspondingly clamped and connected with the plurality of first clamping slots to fix the oxygen generator in the first fixing groove.

[0013] Optionally, the oxygen generator comprises an oxygen generator body and an oxygen generator shell, the oxygen generator body is accommodated in the oxygen generator shell, and the plurality of first buckles are located on the oxygen generator shell.

[0014] Optionally, the oxygen generator is fixedly connected with the first fixing groove through a magic tape, a mother buckle, or an adhesive.

[0015] Optionally, the outer contour of the brim plate is circular.

[0016] Optionally, the distance between the outer edge and the inner edge of the brim plate is 10-30 cm.

[0017] Optionally, the preset interval is greater than or equal to 5 mm.

[0018] Optionally, the oxygen cap further comprises a power supply line, and the battery module is connected with the oxygen generator through the power supply line.

[0019] Optionally, the battery module and the oxygen generator are respectively located on two sides of the hat barrel.

[0020] Optionally, the brim plate has a second fixing groove, and the battery module is detachably fixed in the second fixing groove.

[0021] Optionally, the second fixing groove is in a shape of a rounded rectangle.

[0022] Optionally, the brim plate has a second protruding strip extending along the surface of the brim plate and forming the second fixing groove.

[0023] Optionally, the oxygen cap further comprises a contact electrode fixedly arranged in the second fixing groove, the power supply line is connected with the contact electrode, and the electrode of the battery module is in electrical contact with the contact electrode to supply power to the oxygen generator through the power supply line.

[0024] Optionally, the oxygen generator is detachably fixed in the first fixing groove of the brim plate, and the brim plate also has a connecting groove, the connecting groove extends around the hat tube and the two ends of the connecting groove are respectively connected to the first fixing groove and the second fixing groove, and the power supply line is disposed in the connecting groove.

[0025] Optionally, the brim plate has a pair of third protrusions arranged in the same direction and extending along the surface of the brim plate, and the third fixing groove is formed between the third protrusions.

[0026] Optionally, the oxygen cap further includes a power supply electrode, which is fixedly disposed in the first fixing groove, and the power supply line is connected to the power supply electrode, and the electrode of the oxygen generator is in electrical contact with the power supply electrode.

[0027] Optionally, the oxygen cap further includes a sealing strip that extends around the cap tube and whose shape corresponds to the shape of the connecting groove, the sealing strip sealing the opening of the connecting groove on the surface of the cap brim.

[0028] Optionally, the sealing strip at least partially enters the connecting groove and is tightly fitted into the connecting groove.

[0029] Optionally, the sealing strip includes a mating strip and a closing strip, both of which extend along the length of the sealing strip. The width of the mating strip is smaller than the width of the closing strip. The mating strip is accommodated in the connecting groove, and the closing strip covers the opening of the connecting groove on the surface of the brim.

[0030] Optionally, the oxygen cap further includes an oxygen tube and a nozzle. The first end of the oxygen tube is connected to the oxygen generator, and the second end of the oxygen tube extends to the side of the cap brim away from the cap tube. The nozzle is detachably connected to the second end of the oxygen tube, and the inner cavity of the nozzle communicates with the oxygen tube. The nozzle has multiple air holes that connect the inner cavity of the nozzle to the outside.

[0031] Optionally, the first end of the oxygen tube is fixedly connected to the brim plate, and an air outlet is formed on the brim plate. The position of the air outlet corresponds to the position of the first fixing groove, and the air outlet penetrates the brim plate along the thickness direction. The first end of the oxygen tube is connected to the oxygen generator through the air outlet.

[0032] Optionally, the oxygen pipe is a corrugated pipe.

[0033] Optionally, the oxygen cap further includes a shaping strip, which is fixed in the oxygen tube and extends along the length of the oxygen tube, and the shaping strip is made of metal.

[0034] Optionally, the nozzle includes a fitting cylinder and a vent shell, the vent shell having a plurality of air holes on its side wall, the fitting cylinder having a communication port, one end of the fitting cylinder being connected to the communication port, and the other end of the fitting cylinder being sleeved on the oxygen tube.

[0035] Optionally, the oxygen cap further includes an inner liner cap, which includes an inner cylinder and an inner plate. The inner plate seals the first end of the inner cylinder. The inner liner cap is detachably fixed in the cap cylinder. The outer wall of the inner cylinder corresponds to the inner wall of the cap cylinder, and the inner plate corresponds to the top plate.

[0036] Optionally, the inner liner cap is fixedly connected to the cap body by Velcro, snaps, buckles, or straps.

[0037] Optionally, the inner cap further includes an inner brim, which surrounds the second end of the inner tube and overlaps with the cap brim plate.

[0038] Optionally, the inner lining brim is fixedly connected to the brim panel by Velcro, snaps, buckles, or straps.

[0039] In the oxygen cap provided by this utility model, the battery module can power the oxygen generator, and the oxygen generated by the oxygen generator is delivered to the mouthpiece through the oxygen tube, so that the user can inhale oxygen by holding the mouthpiece, realizing portable oxygen inhalation in scenarios such as high altitude and special environment operation; moreover, the oxygen tube and mouthpiece are designed separately, so that the mouthpiece can be removed and replaced separately after the user has used it, which is convenient for quick cleaning and sale or rental after recycling; for example, in high-altitude areas, oxygen caps can be rented out, and after recycling, the battery module, mouthpiece and oxygen generator modules can be replaced and put into use again, realizing the reuse of oxygen caps, improving the economic benefits and environmental protection of the product.

[0040] Furthermore, the oxygen cap has an outward-extending brim around its perimeter, with the oxygen generator mounted on the brim and spaced a certain distance from the cap tube used to accommodate the user's head. This effectively reduces the impact of vibrations generated by the oxygen generator during operation on the human body, improves the user's comfort when wearing the oxygen cap, and enhances the user experience.

[0041] Furthermore, the battery module and oxygen generator are symmetrically arranged on both sides of the cap, so that when the user wears the oxygen cap, the battery module and oxygen generator can be distributed front to back or left to right, so that the weight on both sides of the cap brim can be balanced, further improving the user's comfort when wearing the oxygen cap. Attached Figure Description

[0042] The present invention will be further described below with reference to the accompanying drawings:

[0043] Figure 1This is a schematic diagram of the structure of the oxygen cap provided in this embodiment of the utility model;

[0044] Figure 2 This is a side view of the oxygen cap provided in this embodiment of the present invention.

[0045] Figure 3 This is a schematic diagram of the disassembled structure of the oxygen cap provided in this embodiment of the utility model;

[0046] Figure 4 This is a schematic diagram of the structure of the oxygen cap body provided in this embodiment of the utility model.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100 for the cap body; 110 for the cap tube; 120 for the top plate; 130 for the brim; 131 for the first convex strip; 132 for the second convex strip; 133 for the third convex strip; 134 for the air outlet; 200 for the oxygen generator; 300 for the battery module; 400 for the sealing strip; 510 for the oxygen tube; 520 for the air nozzle; 521 for the fitting sleeve; 522 for the ventilation shell; 600 for the inner cap; 610 for the inner tube; 620 for the inner plate; 630 for the inner brim; a for the first fixing groove; b for the second fixing groove; c for the third fixing groove. Detailed Implementation

[0049] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0050] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0051] To solve the above-mentioned technical problems, this utility model provides an oxygen cap, such as... Figures 1 to 3 As shown, the oxygen cap includes a cap body 100, an oxygen generator 200, a battery module 300, an oxygen tube 510, and an air nozzle 520. The oxygen generator 200 and the battery module 300 are both fixedly mounted on the cap body 100. The oxygen generator 200 is electrically connected to the battery module 300. The first end of the oxygen tube 510 is connected to the oxygen generator 200. The air nozzle 520 is detachably connected to the second end of the oxygen tube 510. The inner cavity of the air nozzle 520 is connected to the oxygen tube 510, and the air nozzle 520 has multiple air holes that connect the inner cavity of the air nozzle 520 to the outside.

[0052] Understandably, the valve 520 is intended for the user to hold in their mouth so that the user can draw oxygen through the oxygen tube 510.

[0053] In the oxygen cap provided by this utility model, the battery module 300 can supply power to the oxygen generator 200. The oxygen generated by the oxygen generator 200 is delivered to the nozzle 520 through the oxygen tube 510 so that the user can inhale oxygen by holding the nozzle 520, thus realizing portable oxygen inhalation in scenarios such as high altitude and special environment operations.

[0054] Furthermore, the oxygen tube 510 and the nozzle 520 are designed as separate units, allowing the nozzle 520 to be removed and replaced separately after use. This facilitates quick cleaning and resale or rental after recycling. For example, in high-altitude areas, oxygen caps can be rented out, and after recycling, the battery module 300, nozzle 520, and oxygen generator 200 can be replaced before the caps are put back into use, enabling the reuse of oxygen caps and improving the product's economic efficiency and environmental friendliness.

[0055] As an optional embodiment of this utility model, such as Figures 1 to 3 As shown, the first end of the oxygen tube 510 is fixedly connected to the brim plate 130, as... Figures 3 to 4 As shown, an air outlet 134 is formed on the brim plate 130. The position of the air outlet 134 corresponds to the position of the first fixing groove a. The air outlet 134 penetrates the brim plate 130 along the thickness direction. The first end of the oxygen tube 510 is connected to the oxygen generator 200 through the air outlet 134.

[0056] As an optional embodiment of this utility model, the oxygen tube 510 is a corrugated tube, which can maintain its bent shape after bending to ensure the stability of the position of the nozzle 520.

[0057] As another optional embodiment of this utility model, the oxygen cap also includes a shaping strip, which is fixed in the oxygen tube 510 and extends along the length of the oxygen tube 510. The shaping strip is made of metal, so that the oxygen tube 510 can be kept in a bent shape by the shaping strip, thus ensuring the stability of the position of the nozzle 520.

[0058] As an optional embodiment of this utility model, such as Figure 3 As shown, the air nozzle 520 includes a fitting cylinder 521 and an air vent shell 522. The side wall of the air vent shell 522 has multiple air holes. The fitting cylinder 521 has a communication port. One end of the fitting cylinder 521 is connected to the communication port, and the other end of the fitting cylinder 521 is sleeved on the oxygen tube 510.

[0059] As an optional embodiment of this utility model, the material of the cap body 100 is a lightweight material with a certain supporting strength, such as leather, plastic or carbon fiber.

[0060] In other embodiments of this utility model, the hat body 100 can also be made of other materials commonly used in hats, such as rigid fabric or a structure woven from strips of materials such as plastic strips or straw strips.

[0061] In a preferred embodiment of the present invention, the hat body 100 includes a hat tube 110, a top plate 120 and a brim plate 130. The top plate 120 seals one end of the hat tube 110, and the brim plate 130 has a wearing through hole. The inner edge of the wearing through hole is connected to the other end of the hat tube 110. The oxygen generator 200 and the battery module 300 are both disposed on the brim plate 130, and there is a preset interval between the oxygen generator 200 and the hat tube 110.

[0062] It is understood that the cap body 100, the cap tube 110, and the top plate 120 together form a protective structure for supporting the user's head, while the brim plates 130 around the cap body 100 are the brim of the oxygen cap. In this embodiment of the invention, the oxygen cap has an outwardly extending brim around its perimeter, and the oxygen generator 200 is mounted on the brim plate 130, spaced a certain distance from the cap tube 110 used to accommodate the user's head. This effectively reduces the impact of vibrations generated by the oxygen generator 200 during operation on the human body, improves the user's comfort when wearing the oxygen cap, and enhances the user experience.

[0063] As an optional embodiment of this utility model, such as Figures 1 to 4 As shown, the diameter of the cap 110 gradually decreases along the direction close to the top plate 120 to fit the contour of the user's head.

[0064] As an optional embodiment of this utility model, such as Figures 3 to 4 As shown, the brim plate 130 has a first fixing groove a, and the oxygen generator 200 is detachably fixed in the first fixing groove a.

[0065] In this embodiment of the utility model, the oxygen generator 200 is detachably fixed in the first fixing groove a on the brim of the cap, so that the oxygen generator 200 can be replaced at any time after the oxygen cap is used, which facilitates the maintenance of the oxygen generator 200; and, in areas such as plateaus, the oxygen caps can be rented out and quickly put into use again after the oxygen generator 200 is replaced after recycling, thereby improving the reuse efficiency of the oxygen caps.

[0066] As an optional embodiment of this utility model, such as Figures 3 to 4 As shown, the first fixing groove a has a rounded rectangle shape.

[0067] As an optional embodiment of this utility model, such as Figure 4 As shown, the brim plate 130 has a first protrusion 131, which extends along the surface of the brim plate 130 and forms a first fixing groove a.

[0068] As an optional embodiment of this utility model, the side wall of the first fixing groove a has a plurality of first slots (not shown in the figure), and the surface of the oxygen generator 200 has a plurality of first buckles. The plurality of first buckles are engaged with the plurality of first slots in a corresponding manner to fix the oxygen generator 200 in the first fixing groove a.

[0069] In a preferred embodiment of the present invention, the oxygen concentrator 200 includes an oxygen concentrator body and an oxygen concentrator housing. The oxygen concentrator body is housed therein, and a plurality of first buckles are located on the oxygen concentrator housing. Thus, the oxygen concentrator housing and the first fixing groove a together cover the oxygen concentrator 200 to isolate it from the external environment and ensure the service life of the oxygen concentrator 200.

[0070] In other embodiments of this utility model, the oxygen generator 200 can also be fixedly connected to the first fixing groove a by Velcro, snap fasteners or adhesive.

[0071] As an optional embodiment of this utility model, such as Figures 1 to 4 As shown, the outer edge of the brim plate 130 is circular.

[0072] In other embodiments of this utility model, the outer contour of the brim 130 can also be elliptical or other shapes. Furthermore, the shape of the brim 130 is not limited to the flat plate shape shown in the figure; for example, it can also be curved, such as the saddle shape of a cowboy hat.

[0073] As an optional embodiment of this utility model, the distance between the outer edge and the inner edge of the brim plate 130 is 10cm-30cm, that is, the width of the oxygen cap brim is 10cm-30cm.

[0074] As an optional embodiment of this utility model, the preset interval is greater than or equal to 5mm.

[0075] As an optional embodiment of this utility model, such as Figures 1 to 3 As shown, the oxygen cap also includes a power supply line (not shown in the figure), and the battery module 300 is connected to the oxygen generator 200 via the power supply line.

[0076] As a preferred embodiment of this utility model, such as Figures 1 to 3 As shown, the battery module 300 and the oxygen generator 200 are located on both sides of the cap 110.

[0077] In this embodiment of the utility model, the battery module 300 and the oxygen generator 200 are symmetrically arranged on both sides of the cap 110, so that when the user wears the oxygen cap, the battery module 300 and the oxygen generator 200 can be distributed in front and back or left and right, so that the weight on both sides of the cap brim is balanced, further improving the user's comfort when wearing the oxygen cap.

[0078] As an optional embodiment of this utility model, such as Figures 3 to 4 As shown, the brim plate 130 has a second fixing groove b, in which the battery module 300 is detachably fixed, so that when the battery module 300 is depleted, a new battery can be quickly removed and replaced, which is convenient for rental, sale and maintenance.

[0079] As an optional embodiment of this utility model, such as Figures 3 to 4 As shown, the shape of the second fixing groove b is a rounded rectangle.

[0080] As an optional embodiment of this utility model, such as Figure 4 As shown, the brim plate 130 has a second protrusion 132, which extends along the surface of the brim plate 130 and forms a second fixing groove b.

[0081] As an optional embodiment of this utility model, the oxygen cap also includes a contact electrode (not shown in the figure), which is fixedly disposed in the second fixing groove b. The power supply line is connected to the contact electrode, and the electrode of the battery module 300 is in electrical contact with the contact electrode to supply power to the oxygen generator 200 through the power supply line.

[0082] As an optional embodiment of this utility model, such as Figures 3 to 4 As shown, the brim plate 130 also has a connecting groove, which extends around the hat tube 110 and the two ends of the connecting groove are respectively connected to the first fixing groove a and the second fixing groove b. The power supply line is set in the connecting groove.

[0083] As an optional embodiment of this utility model, such as Figure 4 As shown, the brim plate 130 has a pair of third protrusions 133 arranged in the same direction and extending along the surface of the brim plate 130, and a third fixing groove c is formed between the third protrusions 133.

[0084] As an optional embodiment of this utility model, the oxygen cap also includes a power supply electrode (not shown in the figure), which is fixedly disposed in the first fixed groove a, and the power supply line is connected to the power supply electrode, and the electrode of the oxygen generator 200 is in electrical contact with the power supply electrode.

[0085] As an optional embodiment of this utility model, such as Figures 1 to 3 As shown, the oxygen cap also includes a sealing strip 400, which extends around the cap tube 110 and the shape of the sealing strip 400 corresponds to the shape of the connecting groove. The sealing strip 400 seals the opening of the connecting groove on the surface of the cap brim plate 130.

[0086] As an optional embodiment of this utility model, the sealing strip 400 at least partially enters the connecting groove and is tightly connected to the connecting groove.

[0087] As an optional embodiment of this utility model, the sealing strip 400 includes a mating strip and a closing strip (such as...). Figure 3 As shown, the cross-sectional shape of the sealing strip 400 is T-shaped, and the mating strip and the sealing strip are the upper and lower parts of the T-shape, respectively. Both the mating strip and the sealing strip extend along the length of the sealing strip 400. The width of the mating strip is smaller than the width of the sealing strip. The mating strip is accommodated in the connecting groove, and the sealing strip covers the opening of the connecting groove on the surface of the cap plate 130.

[0088] As an optional embodiment of this utility model, such as Figure 3 As shown, the oxygen cap also includes an inner liner cap 600, which includes an inner cylinder 610 and an inner plate 620. The inner plate 620 seals the first end of the inner cylinder 610. The inner liner cap 600 is detachably fixed in the cap cylinder 110. The outer wall of the inner cylinder 610 corresponds to the inner wall of the cap cylinder 110, and the inner plate 620 corresponds to the top plate 120.

[0089] In this embodiment of the utility model, an inner liner cap 600 is detachably provided in the cap tube 110. The inner liner cap 600 is in direct contact with the user's head and can be removed separately. Thus, the inner liner cap 600 can be removed and replaced after the user has used it, which is convenient for quick cleaning and sale or rental after recycling.

[0090] As an optional embodiment of this utility model, the inner liner cap 600 is fixedly connected to the cap body 100 by Velcro, snaps, buckles or straps.

[0091] As an optional embodiment of this utility model, such as Figure 3 As shown, the inner cap 600 also includes an inner brim 630, which is arranged around the second end of the inner tube 610, and the inner brim 630 is stacked with the cap brim plate 130.

[0092] As an optional embodiment of this utility model, the inner brim 630 is fixedly connected to the brim plate 130 by Velcro, snaps, buckles or straps.

[0093] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. An oxygen cap, characterized in that, The device includes a cap (100), an oxygen generator (200), a battery module (300), an oxygen tube (510), and a nozzle (520). The oxygen generator (200) and the battery module (300) are both fixedly mounted on the cap (100). The oxygen generator (200) is electrically connected to the battery module (300). The first end of the oxygen tube (510) is connected to the oxygen generator (200). The nozzle (520) is detachably connected to the second end of the oxygen tube (510). The inner cavity of the nozzle (520) is connected to the oxygen tube (510), and the nozzle (520) has multiple air holes that connect the inner cavity of the nozzle (520) to the outside.

2. The oxygen cap according to claim 1, characterized in that, The hat body (100) includes a hat tube (110), a top plate (120) and a brim plate (130). The top plate (120) seals one end of the hat tube (110). The brim plate (130) has a wearing through hole. The inner edge of the wearing through hole is connected to the other end of the hat tube (110). The oxygen generator (200) and the battery module (300) are both disposed on the brim plate (130), and there is a preset interval between the oxygen generator (200) and the hat tube (110).

3. The oxygen cap according to claim 2, characterized in that, The brim plate (130) has a first fixing groove (a), and the oxygen generator (200) is detachably fixed in the first fixing groove (a).

4. The oxygen cap according to claim 2, characterized in that, The preset interval is greater than or equal to 5mm.

5. The oxygen cap according to claim 2, characterized in that, The battery module (300) and the oxygen generator (200) are located on opposite sides of the cap (110).

6. The oxygen cap according to claim 2, characterized in that, The brim plate (130) has a second fixing groove (b), and the battery module (300) is detachably fixed in the second fixing groove (b).

7. The oxygen cap according to claim 6, characterized in that, The oxygen cap also includes a power supply line, and the battery module (300) is connected to the oxygen generator (200) through the power supply line; the oxygen generator (200) is detachably fixed in the first fixing groove (a) of the brim plate (130), and the brim plate (130) also has a connecting groove, which extends around the cap tube (110) and the two ends of the connecting groove are respectively connected to the first fixing groove (a) and the second fixing groove (b), and the power supply line is disposed in the connecting groove.

8. The oxygen cap according to claim 2, characterized in that, The oxygen cap also includes an inner liner cap (600), which includes an inner cylinder (610) and an inner plate (620). The inner plate (620) seals the first end of the inner cylinder (610). The inner liner cap (600) is detachably fixed in the cap tube (110). The outer wall of the inner cylinder (610) corresponds to the inner wall of the cap tube (110), and the inner plate (620) corresponds to the top plate (120).

9. The oxygen cap according to any one of claims 1 to 8, characterized in that, The oxygen tube (510) is a corrugated tube.

10. The oxygen cap according to any one of claims 1 to 8, characterized in that, The air nozzle (520) includes a fitting cylinder (521) and a vent shell (522). The vent shell (522) has a plurality of air holes on its side wall. The fitting cylinder (521) has a communication port. One end of the fitting cylinder (521) is connected to the communication port, and the other end of the fitting cylinder (521) is sleeved on the oxygen tube (510).

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