Hub structure and vehicle with same

Abstract

The utility model relates to a hub structure and a vehicle comprising the same, the hub structure comprises a hub main body, a hub decorative cover and an air bag structure, the hub decorative cover is detachably connected with the hub main body so as to cover an accommodating groove of the hub main body; the air bag structure is connected with the hub body and has a storage state and an inflation state, and when the air bag structure is in the storage state, the air bag structure is located in the containing groove. In the process that the air bag structure is switched from the storage state to the inflation state, the air bag structure drives the hub decoration cover to open the containing groove; when the air bag structure is in the inflated state, at least part of the air bag structure is located outside the containing groove. According to the hub structure and the vehicle with the same, the air bag structure can be prevented from occupying the external space of the hub main body when not in use, so that the driving and appearance of the vehicle are not influenced; and after the vehicle falls into water, the hub decorative cover can be opened by inflating the air bag structure, and the buoyancy borne by the vehicle is increased, so that the water falling rescue time and the passenger escape time are prolonged, and the survival rate of passengers is increased.

Description

Technical Field

[0001] This application belongs to the technical field of vehicle wheels, and particularly relates to a hub structure and a vehicle thereof. Background Art

[0002] When a vehicle accidentally falls into water, since the buoyancy force received by the vehicle is much smaller than the gravity of the vehicle itself, the vehicle will sink within a short period of time and finally be in a completely immersed state, greatly compressing the rescue time and the passenger escape time after falling into water.

[0003] Existing vehicles install airbags on the outer side of the hub (the side away from the vehicle's central axis) through a buckle device. By adding airbags, the buoyancy force received by the vehicle in water is increased to increase the rescue time and the passenger escape time after falling into water. However, installing the airbag on the outer side of the hub will occupy the outer space of the hub, which not only affects the driving of the vehicle but also affects the aesthetics of the vehicle. Summary of the Utility Model

[0004] The purpose of this application is to provide a hub structure and a vehicle thereof, which can not only avoid the airbag structure occupying the external space of the hub body when not in use and affecting the driving and appearance of the vehicle; but also after the vehicle falls into water, inflating the airbag structure can open the hub decorative cover and increase the buoyancy force received by the vehicle, thereby increasing the rescue time and the passenger escape time after falling into water to improve the survival rate of passengers.

[0005] A first aspect of this application discloses a hub structure, including: a hub body, a hub decorative cover, and an airbag structure. The hub body is provided with a receiving groove along the axial direction of the hub body; the hub decorative cover is detachably connected to the hub body for covering the receiving groove; the airbag structure is connected to the hub body, and the airbag structure has a storage state and an inflated state; wherein, when the airbag structure is in the storage state, the airbag structure is located in the receiving groove; during the process of the airbag structure switching from the storage state to the inflated state, the airbag structure drives the hub decorative cover to open the receiving groove; when the airbag structure is in the inflated state, at least a part of the airbag structure is located outside the receiving groove.

[0006] In an exemplary embodiment of this application, the airbag structure is detachably connected to the hub body.

[0007] In an exemplary embodiment of this application, the hub structure includes a first connecting column and a buckle structure. The first connecting column is located in the receiving groove and is connected to the hub body; the airbag structure includes an airbag and a second connecting column. The airbag is sleeved on the second connecting column, and the second connecting column is detachably connected to the first connecting column through the buckle structure.

[0008] In an exemplary embodiment of the present application, the first connecting column is provided with a groove, and one end of the second connecting column is inserted into the groove.

[0009] In an exemplary embodiment of the present application, the airbag structure further includes an elastic member, the elastic member is located in the groove, and is elastically connected between the first connecting column and the second connecting column.

[0010] In an exemplary embodiment of the present application, the first connecting column is a flexible telescopic structure, and the maximum length value of the first connecting column is greater than the depth of the accommodating groove.

[0011] In an exemplary embodiment of the present application, the second connecting column includes a column body section and a limiting section. One end of the column body section is detachably connected to the first connecting column, the other end of the column body section is connected to the limiting section, the diameter of the limiting section is greater than the diameter of the column body section and greater than the diameter of the connecting opening of the airbag; the airbag is sleeved on the column body section.

[0012] In an exemplary embodiment of the present application, the wheel hub decorative cover includes a cover body portion and a plurality of elastic clamping portions connected to the same side of the cover body portion. The cover body portion covers the opening of the accommodating groove, and the plurality of elastic clamping portions are all located in the accommodating groove and are elastically clamped to the inner wall of the accommodating groove.

[0013] In an exemplary embodiment of the present application, the airbag structure includes an ignition coil and a gas generator. The ignition coil is electrically connected to the gas generator, and the gas generator is arranged in the airbag and generates gas when the ignition coil ignites.

[0014] The second aspect of the present application discloses a vehicle, including an axle and the wheel hub structure as described above, and the wheel hub structure is connected to the axle.

[0015] The solution of the present application has the following beneficial effects:

[0016] In the embodiments of the present application, the wheel hub decorative cover is detachably connected to the wheel hub body for covering the accommodation groove of the wheel hub body, and the airbag structure is connected to the wheel hub body. The airbag structure has a storage state and an inflated state: when the airbag structure is in the storage state, the airbag structure is located in the accommodation groove, so that the airbag structure can be stored in the accommodation groove through the wheel hub decorative cover, avoiding the airbag structure occupying the external space of the wheel hub body when not in use and affecting the driving and appearance of the vehicle; during the process of the airbag structure switching from the storage state to the inflated state, after the airbag structure is inflated, it can drive the wheel hub decorative cover to open the accommodation groove, and the wheel hub decorative cover can be separated from the wheel hub body without manual operation, so as to facilitate the airbag structure to provide buoyancy for the vehicle; when the airbag structure is in the inflated state, at least part of the airbag structure is located outside the accommodation groove, and the airbag structure can increase the buoyancy received by the vehicle after the vehicle falls into the water, thereby increasing the rescue time and the passenger escape time after falling into the water to improve the survival rate of the passengers.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them, the accompanying drawings herein are used to represent the inventive concept of the present application and are not completely equivalent to the structure of the actual product protected by the present application.

[0019] Figure 1 Shows an internal structural schematic diagram of the wheel hub structure and the tire connection in the embodiments of the present application.

[0020] Figure 2 Shows an external structural schematic diagram of the wheel hub structure and the tire connection in the embodiments of the present application.

[0021] Figure 3 Shows a partial cross-sectional structural schematic diagram of the airbag structure and the first connecting column in the embodiments of the present application.

[0022] Figure 4 Shows a cross-sectional structural schematic diagram of the first connecting column and the second connecting column in the embodiments of the present application.

[0023] Figure 5 Shows a cross-sectional structural schematic diagram of the first connecting column in the embodiments of the present application.

[0024] Figure 6 Shows a front view structural schematic diagram of the wheel hub decorative cover in the embodiments of the present application.

[0025] Description of the reference numerals:

[0026] 1. Hub body; 101. Accommodating groove; 2. Hub decorative cover; 21. Cover body part; 22. Elastic clamping part; 3. Airbag structure; 31. Airbag; 32. Second connecting column; 321. Column body part; 321a. Column section; 321b. Limiting section; 322. Bump part; 33. Elastic member; 34. Ignition coil; 35. Gas generator; 36. Ignition controller; 4. Bolt; 5. First connecting column; 501. Groove; 501a. First groove section; 501b. Second groove section; 6. Buckle structure; 7. Wiring harness; 8. Tire. Detailed implementation manners

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.

[0028] In addition, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of this application. However, those skilled in the art will realize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of this application.

[0029] The following further details this application in conjunction with the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain this application and should not be construed as a limitation of this application.

[0030] As Figures 1 to 6 shown, this embodiment provides a hub structure, including: a hub body 1, and the hub body 1 is provided with an accommodating groove 101 along the axial direction of the hub body 1.

[0031] In this embodiment, the hub body 1 is connected to the brake disc of the vehicle by a bolt 4 passing through the bottom of the accommodating groove 101 to realize the installation of the hub.

[0032] Furthermore, as Figure 1 shown, the hub structure further includes a hub decorative cover 2, and the hub decorative cover 2 is detachably connected to the hub body 1 for covering the accommodating groove 101.

[0033] It should be understood that the wheel hub decorative cover 2 is a logo cover on the vehicle wheel hub, and usually the logo of the vehicle brand is printed on the wheel hub decorative cover 2.

[0034] Furthermore, as shown in Figure 1 and Figure 3 , the wheel hub structure further includes an airbag structure 3. The airbag structure 3 is connected to the wheel hub body 1. The airbag structure 3 has a storage state and an inflated state. When the airbag structure 3 is in the storage state, the airbag structure 3 is located in the accommodation groove 101. During the process of the airbag structure 3 switching from the storage state to the inflated state, the airbag structure 3 drives the wheel hub decorative cover 2 to open the accommodation groove 101. When the airbag structure 3 is in the inflated state, at least a part of the airbag structure 3 is located outside the accommodation groove 101.

[0035] In this embodiment, the wheel hub decorative cover 2 is detachably connected to the wheel hub body 1 for covering the accommodation groove 101 of the wheel hub body 1, and the airbag structure 3 is connected to the wheel hub body 1. The airbag structure 3 has a storage state and an inflated state. When the airbag structure 3 is in the storage state, the airbag structure 3 is located in the accommodation groove 101, so that the airbag structure 3 can be stored in the accommodation groove 101 through the wheel hub decorative cover 2, avoiding the airbag structure 3 occupying the external space of the wheel hub body 1 when not in use and affecting the driving and appearance of the vehicle. During the process of the airbag structure 3 switching from the storage state to the inflated state, after the airbag structure 3 is inflated, it can drive the wheel hub decorative cover 2 to open the accommodation groove 101, and the wheel hub decorative cover 2 can be separated from the wheel hub body 1 without manual operation, so as to facilitate the airbag structure 3 to provide buoyancy for the vehicle. When the airbag structure 3 is in the inflated state, at least a part of the airbag structure 3 is located outside the accommodation groove 101. The airbag structure 3 can increase the buoyancy received by the vehicle after the vehicle falls into the water, thereby increasing the rescue time and the passenger's escape time in the water and improving the survival rate of the passengers.

[0036] It should be understood that since the volume of the airbag structure 3 will gradually increase after the airbag structure 3 is inflated, resulting in the airbag structure 3 squeezing the wheel hub decorative cover 2, the magnitude of the extrusion force of the airbag structure 3 on the wheel hub decorative cover 2 should be greater than the connection strength between the wheel hub decorative cover 2 and the wheel hub body 1, so as to ensure that after the airbag structure 3 is inflated, the airbag structure 3 will surely detach the wheel hub decorative cover 2 from the wheel hub body 1 and move outside the accommodation groove 101.

[0037] In this embodiment, the airbag structure 3 is detachably connected to the wheel hub body 1, so that the passenger can detach the airbag structure 3 separately and use the airbag structure 3 as a water rescue tool, which is convenient for the passenger to move and is beneficial to improving the survival rate of the passenger. In addition, after the airbag structure 3 is used, it is also convenient to detach the airbag structure 3 from the wheel hub body 1 for replacing the airbag structure 3.

[0038] For example, the shape of the airbag structure 3 can be made into the shape of a water rescue tool such as a manned boat or a life buoy.

[0039] Combined with Figure 1 and Figure 3 As shown, the hub structure includes a first connecting column 5 and a buckle structure 6. The first connecting column 5 is located in the accommodation groove 101 and is connected to the hub body 1. The airbag structure 3 includes an airbag 31 and a second connecting column 32. The airbag 31 is sleeved on the second connecting column 32, and the second connecting column 32 is detachably connected to the first connecting column 5 through the buckle structure 6.

[0040] In this embodiment, the first connecting column 5 is connected to the hub body 1 by welding. The first connecting column 5 is used to support and carry the airbag structure 3. The buckle structure 6 has an open state and a closed state. When the buckle structure 6 is in the open state, the second connecting column 32 and the first connecting column 5 are separated, and the airbag structure 3 can be detached from the hub body 1. The airbag structure 3 can be used as a self-rescue tool for passengers in water, which is beneficial to increasing the survival rate of passengers when the vehicle falls into water. When the buckle structure 6 is in the closed state, the second connecting column 32 and the first connecting column 5 are connected, and the airbag structure 3 is connected to the hub body 1. The airbag structure 3 can improve the buoyancy received by the vehicle to increase the rescue time and the passenger escape time when falling into water.

[0041] It should be understood that the second connecting column 32 of the airbag structure 3 is connected to the hub body 1 through the first connecting column 5. After the buckle structure 6 is opened, the second connecting column 32 is separated from the first connecting column 5, and the airbag structure 3 is also separated from the hub body 1.

[0042] For example, the buckle structure 6 can be a detachable buckle of an automotive air filter.

[0043] In this embodiment, combined with Figure 1 and Figures 3 to 5 As shown, a groove 501 is provided at one end of the first connecting column 5 away from the hub body 1. The second connecting column 32 includes a column body portion 321 and a convex block portion 322 that are connected to each other. The column body portion 321 is farther away from the hub body 1 than the convex block portion 322. The convex block portion 322 passes through the groove 501. The first connecting column 5 is connected to the convex block portion 322 of the second connecting column 32 through the groove 501. When the buckle structure 6 is in the closed state, the first connecting column 5 and the second connecting column 32 can be stably connected together to ensure the stability of the connection between the airbag structure 3 and the hub body 1. When the buckle structure 6 is in the open state, the first connecting column 5 and the second connecting column 32 can be quickly separated to facilitate the detachment of the airbag 31.

[0044] Combined with Figure 3 and Figure 5As shown, the airbag structure 3 further includes an elastic member 33. The elastic member 33 is located within the groove 501 and is elastically connected between the first connecting post 5 and the second connecting post 32.

[0045] For example, the elastic member 33 can be an elastic component such as a spring.

[0046] In this embodiment, the groove 501 includes a first groove section 501a and a second groove section 501b. The elastic member 33 is located within the first groove section 501a, and the convex block portion 322 is located within the second groove section 501b. The elastic member 33 is elastically connected between the first connecting post 5 and the convex block portion 322. When the buckle structure 6 is in the closed state, the elastic member 33 is compressed between the first connecting post 5 and the convex block portion 322; when the buckle structure 6 is in the open state, the second connecting post 32 is quickly separated from the first connecting post 5 by the elastic restoring force of the elastic member 33, so as to facilitate the disassembly of the airbag structure 3.

[0047] It should be understood that the diameter of the second groove section 501b should be greater than the diameter of the first groove section 501a to limit the convex block portion 322 and prevent the convex block portion 322 from being installed into the first groove section 501a. The length of the elastic member 33 should be greater than the depth of the first groove section 501a to ensure that when the elastic member 33 is installed into the first groove section 501a, the elastic member 33 is compressed between the first connecting post 5 and the convex block portion 322, and further ensure that when the buckle structure 6 is in the open state, the second connecting post 32 and the first connecting post 5 can be quickly separated.

[0048] In other embodiments, the first connecting post 5 is a flexible telescopic structure, and the maximum length value of the first connecting post 5 is greater than the depth of the receiving groove 101, so that the end of the first connecting post 5 connected to the second connecting post 32 can move outside the receiving groove 101, and the airbag structure 3 also moves outside the receiving groove 101 synchronously, which not only facilitates the passenger to open the buckle structure 6, but also facilitates the passenger to take the airbag structure 3.

[0049] It should be understood that the maximum length value of the first connecting post 5 being greater than the depth of the receiving groove 101 means that the length of the first connecting post 5 after stretching is greater than the depth of the receiving groove 101, and the end of the first connecting post 5 connected to the second connecting post 32 (the buckle structure 6) can move outside the receiving groove 101.

[0050] Specifically, when the airbag structure 3 is inflated and drives the hubcap 2 to open the receiving groove 101, the passenger can change the length of the first connecting post 5 by dragging, so that the airbag structure 3 moves outside the receiving groove 101 until the buckle structure 6 moves outside the receiving groove 101. The buckle structure 6 moving outside the receiving groove 101 facilitates the passenger to open the buckle structure 6 and also facilitates the passenger to take the airbag structure 3.

[0051] For example, the flexible telescopic structure can be other components such as a solenoid tube that can change its length.

[0052] Combined with Figure 3 and Figure 4 As shown, the columnar part 321 includes a columnar section 321a and a limiting section 321b. One end of the columnar section 321a is detachably connected to the first connecting column 5 through a bump part 322. The other end of the columnar section 321a is connected to the limiting section 321b. The diameter of the limiting section 321b is greater than that of the columnar section 321a and greater than the diameter of the connecting opening of the airbag 31. The airbag 31 is sleeved on the columnar section 321a.

[0053] In this embodiment, the airbag 31 is sleeved on the columnar section 321a and connected to the columnar section 321a by crimping to prevent the airbag 31 from leaking air. The diameter of the limiting section 321b is greater than that of the columnar section 321a and greater than the diameter of the connecting opening of the airbag 31. The limiting section 321b has a certain limiting effect on the airbag 31, so that the airbag 31 sleeved on the columnar section 321a will not come off, ensuring the tight connection between the airbag 31 and the columnar section 321a and preventing air leakage due to the detachment of the airbag 31.

[0054] It should be understood that the diameter of the first connecting column 5 is equal to the diameter of the columnar section 321a.

[0055] Combined with Figure 1 、 Figure 2 and Figure 6 As shown, the wheel hub decorative cover 2 includes a cover body part 21 and a plurality of elastic clamping parts 22 connected to the same side of the cover body part 21. The cover body part 21 covers the opening of the accommodating groove 101. The plurality of elastic clamping parts 22 are all located in the accommodating groove 101 and elastically clamped to the inner wall of the accommodating groove 101.

[0056] In this embodiment, two elastic clamping parts 22 are elastically clamped to the inner wall of the accommodating groove 101. The cover body part 21 is connected to the wheel hub main body 1 through the two elastic clamping parts 22, so that the cover body part 21 can be detached from the wheel hub main body 1 to achieve the detachable connection between the cover body part 21 and the wheel hub main body 1. During the inflation process of the airbag 31, the volume of the airbag 31 will gradually increase, and the airbag 31 will gradually approach and squeeze the cover body part 21, causing the cover body part 21 to be detached from the wheel hub main body 1. Finally, the airbag 31 pops out of the accommodating groove 101 and continues to inflate to increase the buoyancy received by the vehicle.

[0057] It should be understood that the number of the elastic clamping parts 22 can be selected according to factors such as the magnitude of the extrusion force of the airbag 31 on the cover body part 21.

[0058] In this embodiment, the hub structure further includes a towing rope, which is connected between the cover part 21 and the hub body 1, so that the hub decorative cover 2 will not be lost after being separated from the hub body 1 and can still be used, thus saving costs. In addition, the hub body 1 is also provided with a mounting groove for placing the towing rope. When the hub decorative cover 2 is connected to the hub body 1, the towing rope is located in the mounting groove to avoid affecting the connection between the hub decorative cover 2 and the hub body 1.

[0059] As described in Figure 3 , the airbag structure 3 includes an ignition coil 34 and a gas generator 35. The ignition coil 34 is electrically connected to the gas generator 35. The gas generator 35 is disposed inside the airbag 31 and generates gas when the ignition coil 34 ignites.

[0060] In this embodiment, the airbag structure 3 further includes an ignition controller 36, which is located outside the airbag 31 and is connected to the ignition coil 34 through a wire harness 7. The ignition controller 36 is used to control whether the ignition coil 34 ignites. There is a wading unit on the vehicle for detecting whether the vehicle has fallen into water. When the vehicle falls into water, the wading unit will send an ignition signal to the ignition controller 36. The ignition controller 36 controls the ignition coil 34 to ignite. After the ignition coil 34 ignites, the gas generator 35 will release gas into the airbag 31 to inflate the airbag 31. The airbag 31 can pop out outside the hub body 1 to increase the buoyancy received by the vehicle.

[0061] It should be understood that when the vehicle moves in water using the wheels, the airbag 31 can ensure that the buoyancy received by the vehicle is constant and uniform, and the buoyancy received by the vehicle will not be affected by the rotation of the wheels.

[0062] In addition, there is a collision unit on the vehicle for detecting whether the vehicle has collided. When the vehicle collides, the collision unit will send an ignition signal to the ignition controller 36. After the ignition coil 34 ignites, the gas generator 35 will release gas into the airbag 31 to inflate the airbag 31. The airbag 31 can cover the area near the wheel and provide a certain buffer space for the wheel, reducing the degree of wheel collision damage.

[0063] It should be understood that after the collision, the airbag 31 can rotate with the hub body 1, or the airbag 31 can be directly removed, and the hub decorative cover 2 can be installed on the hub body 1, all of which do not affect the driving of the vehicle.

[0064] In this embodiment, as described in Figure 3 and Figure 4As shown, the wiring harness 7 is connected between the ignition controller 36 and the ignition coil 34. The wiring harness 7 passes through the limiting section 321b and then passes out from the cylindrical section 321a, and the gaps between the wiring harness 7 and the limiting section 321b and the cylindrical section 321a are sealed with sealant to prevent the airbag 31 from leaking air.

[0065] This embodiment also provides a vehicle, including an axle and the above-mentioned hub structure, and the hub structure is connected to the axle.

[0066] In this application, unless otherwise clearly specified and defined, terms such as "assembly" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0067] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more unless otherwise clearly specifically defined. And the descriptions of terms such as "some embodiments" and "exemplarily" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application.

[0068] The schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0069] Although the embodiments of this application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as a limitation to this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and the description of this application shall fall within the scope covered by the patent of this application.

Claims

1. A hub structure, characterized in that, Comprising: A hub body, which is provided with a receiving groove along the axial direction of the hub body; A hub decorative cover, which is detachably connected to the hub body for covering the receiving groove; An airbag structure, which is connected to the hub body, and the airbag structure has a storage state and an inflated state; wherein, When the airbag structure is in the storage state, the airbag structure is located in the receiving groove; During the process of the airbag structure switching from the storage state to the inflated state, the airbag structure drives the hub decorative cover to open the receiving groove; When the airbag structure is in the inflated state, at least a part of the airbag structure is located outside the receiving groove.

2. The hub structure according to claim 1, wherein, The airbag structure is detachably connected to the hub body.

3. The hub structure according to claim 2, characterized in that, The hub structure includes a first connecting column and a snap structure, the first connecting column is located in the receiving groove and is connected to the hub body; The airbag structure includes an airbag and a second connecting column, the airbag is sleeved on the second connecting column, and the second connecting column is detachably connected to the first connecting column through the snap structure.

4. The hub structure according to claim 3, wherein, The first connecting column is provided with a groove, and one end of the second connecting column passes through the groove.

5. The hub structure according to claim 4, characterized in that, The airbag structure further includes an elastic member, the elastic member is located in the groove and is elastically connected between the first connecting column and the second connecting column.

6. The hub structure according to claim 3, wherein, The first connecting column is a flexible telescopic structure, and the maximum length value of the first connecting column is greater than the depth of the receiving groove.

7. The hub structure according to claim 3, characterized in that, The second connecting column includes a column body section and a limiting section, one end of the column body section is detachably connected to the first connecting column, the other end of the column body section is connected to the limiting section, the diameter of the limiting section is greater than the diameter of the column body section and greater than the diameter of the connecting opening of the airbag; The airbag is sleeved on the column body section.

8. The hub structure according to claim 1, wherein The hub decorative cover includes a cover body part and a plurality of elastic clamping parts connected to the same side of the cover body part, the cover body part covers the opening of the receiving groove, and the plurality of elastic clamping parts are all located in the receiving groove and are elastically clamped to the inner wall of the receiving groove.

9. The hub structure according to claim 3, characterized in that, The airbag structure includes an ignition coil and a gas generator, the ignition coil is electrically connected to the gas generator, the gas generator is arranged in the airbag and generates gas when the ignition coil ignites.

10. A vehicle, characterized in that, Comprising an axle and the hub structure according to any one of claims 1-9, the hub structure is connected to the axle.

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