Wheel and vehicle

Abstract

The utility model provides a wheel and a vehicle, and relates to the technical field of vehicles. The wheel comprises a tire and a hub with a tire mounting groove, wherein the tire is mounted in the tire mounting groove; the hub comprises a first hub and a second hub detachably connected with the first hub, the second hub is located on the side, away from an inner cavity of the tire, of the first hub, and the second hub and the first hub jointly define a tire mounting groove; at least part of the surface, exposed out of the tire mounting groove, of the second hub is attached to the tire, so that a sealing surface of the hub and the tire is formed. The air tightness between the hub and the tire can be enhanced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a wheel and a vehicle. Background Technology

[0002] Most vehicles currently use pneumatic tires, such as those on two-wheeled electric vehicles or scooters. During daily use, these tires need to be installed into the tire mounting slots on the rim. Because pneumatic tires are inherently prone to bursting, in the event of a blowout, removal / replacement requires prying the tire out or pressing it back into the rim. This can make tire removal or installation difficult.

[0003] In related technologies, wheel rims are usually made into separate parts in order to achieve quick tire removal. However, the sealing between separate wheel rims and tires is poor, which can easily cause tire leakage, increase the number of tire inflation cycles, and affect the use of the wheel. Utility Model Content

[0004] In view of the above problems, this application provides a wheel and vehicle that can enhance the air tightness between the wheel hub and the tire.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] A first aspect of this application provides a wheel, comprising: a tire and a hub having a tire mounting groove, wherein the tire is mounted in the tire mounting groove;

[0007] The wheel hub includes a first wheel hub and a second wheel hub detachably connected to the first wheel hub. The second wheel hub is located on the side of the first wheel hub away from the inner cavity of the tire, and together with the first wheel hub, defines the tire mounting groove.

[0008] The second wheel hub is exposed on at least a portion of the surface of the tire mounting groove and is fitted to the tire to form a sealing surface between the wheel hub and the tire.

[0009] In one possible implementation, the surface of the second wheel hub exposed in the tire mounting groove includes a first arcuate surface, a first surface, a second arcuate surface, and a second surface connected in sequence.

[0010] The first arc surface protrudes in the direction toward the tire, and the second arc surface protrudes in the direction away from the tire.

[0011] In one possible implementation, a seal is provided between the first hub and the second hub.

[0012] In one possible implementation, a sealing groove is provided on the surface of the first wheel hub facing the second wheel hub; the sealing element is disposed in the sealing groove and is sealed to the second wheel hub.

[0013] In one possible implementation, the tire mounting groove includes a bottom wall that contacts the tire;

[0014] The bottom wall is inclined relative to the axis of the wheel hub, and the end of the bottom wall facing the inner cavity of the tire is lower than the end of the bottom wall away from the inner cavity of the tire.

[0015] In one possible implementation, the second hub has mounting holes;

[0016] The first wheel hub is mounted in the mounting hole and protrudes from the mounting hole.

[0017] In one possible implementation, the first wheel hub has a positioning groove on the side facing the second wheel hub, and the positioning groove extends through the side of the first wheel hub along the axis of the wheel hub and away from the tire.

[0018] The second wheel hub is fitted into the positioning groove.

[0019] In one possible implementation, the first wheel hub is detachably connected to the second wheel hub via fasteners.

[0020] In one possible implementation, the portion of the first hub exposed inside the tire protrudes in a direction away from the axis of the hub to form a positioning protrusion.

[0021] The positioning protrusion contacts the inner surface of the tire.

[0022] A second aspect of this application provides a vehicle that includes the wheels described in the first aspect.

[0023] In the wheel and vehicle provided in this application embodiment, by placing the second wheel hub on the side of the first wheel hub away from the inner cavity of the tire, the second wheel hub is located on the outer side of the inner cavity of the tire. This allows the second wheel hub to be exposed on at least a portion of the surface of the tire mounting groove, thus forming a sealing surface between the wheel hub and the tire. In this way, the sealing connection between the wheel hub and the tire is achieved using their inherent characteristics, preventing tire leakage, reducing the frequency of tire inflation, extending the wheel's service life, and improving vehicle driving safety.

[0024] In addition, the wheel hubs are designed as separate units, with the first and second wheel hubs being detachably connected. The second wheel hub and the first wheel hub together define the tire mounting slot. This structure makes the tire removal and installation process simpler and faster. Compared with the traditional method of prying the tire out or pressing it into the wheel hub, this design significantly reduces the difficulty and labor intensity of removal and installation.

[0025] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the wheels and vehicles provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A perspective view of a wheel provided in an embodiment of this application;

[0028] Figure 2 A front view of a wheel provided in an embodiment of this application;

[0029] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0030] Figure 4 for Figure 2 Cross-sectional view along the BB direction;

[0031] Figure 5 A perspective view of the wheel hub provided in an embodiment of this application;

[0032] Figure 6 A front view of the wheel hub provided in an embodiment of this application;

[0033] Figure 7 for Figure 6 Enlarged view of region C in the middle;

[0034] Figure 8 An exploded view of the wheel hub provided in an embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100: Tire;

[0037] 200: Wheel hub;

[0038] 210: First hub; 211: Sealing groove; 212: Positioning protrusion; 213: Positioning groove;

[0039] 220: Second hub; 221: First arc surface; 222: First surface; 223: Second arc surface; 224: Second surface; 225: Mounting hole; 226: First connecting hole;

[0040] 230: Tire mounting slot; 231: First tire mounting slot; 232: Second tire mounting slot; 233: Bottom wall;

[0041] 240: Seals;

[0042] 250: Fasteners. Detailed Implementation

[0043] As described in the background section, the inventor has discovered that the problem of poor sealing between the split-type wheel hub and the tire is due to the fact that the separation position of the wheel hub is usually located in the inner cavity of the tire. The connection point of the split-type wheel hub is often difficult to form a flat and continuous sealing surface, thus making it difficult to ensure the sealing between the wheel hub and the tire.

[0044] To address the aforementioned technical problems, this application provides a wheel and vehicle. By positioning a second wheel hub on the side of the first wheel hub away from the tire's inner cavity, the second wheel hub is located on the outer side of the tire's inner cavity. This allows the second wheel hub to be exposed on at least a portion of its surface within the tire mounting groove, thus forming a sealing surface between the wheel hub and the tire. This utilizes the inherent characteristics of the wheel hub and tire to achieve a sealed connection, preventing tire leakage, reducing the frequency of tire inflation, extending wheel life, and improving vehicle driving safety.

[0045] In addition, the wheel hubs are designed as separate units, with the first and second wheel hubs being detachably connected. The second wheel hub and the first wheel hub together define the tire mounting slot. This structure makes the tire removal and installation process simpler and faster. Compared with the traditional method of prying the tire out or pressing it into the wheel hub, this design significantly reduces the difficulty and labor intensity of removal and installation.

[0046] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0047] Please refer to the attached document. Figure 1 To be continued Figure 8 This application provides a wheel that can be applied to a vehicle. The vehicle may include at least one of a scooter, a balance scooter, an electric scooter, and an electric motorcycle.

[0048] Please refer to the attached document. Figure 1 To be continued Figure 4 The wheel includes a tire 100, wherein the tire 100 can be a tubeless tire or a filled tire.

[0049] Please refer to the attached document. Figure 5 To be continued Figure 8 The wheel also includes a hub 200, which has a tire mounting groove 230 for mounting the tire 100, for example, the tire 100 is mounted in the tire mounting groove 230. The hub 200 serves as the main load-bearing component of the wheel, supporting the motor assembly (not shown) and the tire 100; the hub 200 can be made of aluminum alloy, iron, or magnesium alloy.

[0050] Please continue to refer to the appendix. Figure 3 and attached Figure 4 In this embodiment, the wheel hub 200 is a split structure. For example, the wheel hub 200 includes a first wheel hub 210 and a second wheel hub 220, which are detachably connected. The second wheel hub 220 is located on the side of the first wheel hub 210 that is away from the inner cavity of the tire 100. Thus, the second wheel hub 220 is located on the outside of the tire 100 and not inside the inner cavity of the tire 100.

[0051] Please refer to the attached document. Figure 6 The second hub 220 and the first hub 210 together define the tire mounting groove 230. In other words, the surface of the first hub 210 facing away from the axis of the hub 200 is provided with a first tire mounting groove 231 recessed toward the axis of the hub 200. Correspondingly, the surface of the second hub 220 facing away from the axis of the hub 200 is provided with a second tire mounting groove 232 recessed toward the axis of the hub 200. When the first hub 210 and the second hub 220 are connected together, the first tire mounting groove 231 and the second tire mounting groove 232 together form the tire mounting groove 230.

[0052] The second hub 220 is exposed on at least a portion of the surface of the tire mounting groove 230 and is fitted to the tire 100 to form a sealing surface between the hub 200 and the tire 100. It should be understood that the second hub 220 is exposed on at least a portion of the surface of the tire mounting groove 230, and some or all of the surface constitutes the sealing surface.

[0053] In this way, by utilizing the inherent characteristics of the wheel hub 200 and the tire 100, a sealed connection between the two is achieved, which not only prevents the tire 100 from leaking air, but also reduces the number of times the tire 100 needs to be inflated, thereby extending the service life of the wheel and improving the driving safety of the vehicle.

[0054] Furthermore, the wheel hub 200 is designed as a split type, with the first wheel hub 210 and the second wheel hub 220 being detachably connected, and the second wheel hub 220 and the first wheel hub 210 together defining the tire mounting groove 230. This structure makes the tire removal and installation process simpler and faster. Compared with the traditional method that requires prying the tire out or pressing it into the wheel hub, this design significantly reduces the difficulty and labor intensity of removal and installation.

[0055] When removing tire 100, the second rim 220 can be removed from the first rim 210 firstly to release the second rim 220 from the tire 100. After that, tire 100 can be easily removed from rim 200.

[0056] It should be noted that the tire mounting groove 230 can be a regularly shaped groove. For example, along the thickness direction of the wheel hub 200, i.e., the... Figure 6 In the X direction, the dimension of the tire mounting groove 230 is defined as the groove width, which is the width along the direction from the groove opening to the bottom of the groove. Figure 6 In the Z direction, the width of the tire mounting groove 230 can be the same or different. As one possible implementation, the width of the tire mounting groove 230 decreases in the direction from the groove opening to the groove bottom. This arrangement facilitates the restraint of the tire 100 in the narrower area of ​​the tire mounting groove 230, thereby improving the stability of the tire 100.

[0057] Please refer to the attached document. Figure 7 In one possible implementation, the surface of the second hub 220 exposed in the tire mounting groove 230 includes a first arcuate surface 221, a first surface 222, a second arcuate surface 223, and a second surface 224 connected in sequence. The first arcuate surface 221 is connected to the end face of the second hub 220 opposite to its axis.

[0058] The first arc surface 221 protrudes in the direction toward the tire 100, and the second arc surface 223 protrudes in the direction away from the tire 100.

[0059] The first arc surface 221 protrudes in the direction toward the tire 100. This design helps the tire 100 fit better against the inner wall of the tire mounting groove 230 of the rim 200 during installation, reducing the installation gap between the tire 100 and the rim 200, and improving the stability and safety of the tire 100 installation.

[0060] In addition, the second arc surface 223 protrudes in the direction away from the tire 100, which can make the tire 100 form a more uniform contact surface with the rim 200 after installation, which helps to distribute the pressure on the tire 100 and extend the service life of the tire 100 and the rim 200.

[0061] It should be noted that the sealing method between the tire 100 and the rim 200 is not limited to the structure described above; other sealing methods are also possible.

[0062] For example, a seal 240 is provided between the first hub 210 and the second hub 220. The seal 240 can be a sealing ring or a sealing layer. Thus, the seal 240 cooperates with the sealing surface, and is fitted to the tire 100 on at least a portion of the surface of the second hub 220 exposed in the tire mounting groove 230, forming a sealing surface between the hub 200 and the tire 100. Through the design of the seal 240, an additional sealing barrier is provided for the connection between the first hub 210 and the second hub 220. Whether it is a sealing ring or a sealing layer, they can effectively fill the tiny gap between the first hub 210 and the second hub 220, preventing gas leakage, thereby significantly improving the sealing performance between the tire 100 and the hub 200.

[0063] When the seal 240 is a sealing ring, a sealing groove 211 is provided on the surface of the first hub 210 facing the second hub 220; the seal 240 is disposed in the sealing groove 211 and is sealed to the second hub 220. To improve the sealing performance of the seal 240, a portion of the seal 240 may protrude from the sealing groove 211, thereby increasing the contact area between the sealing ring and the second hub 220 and thus improving the sealing performance.

[0064] This embodiment also utilizes the sealing groove 211 to provide a precise positioning space for the sealing ring, ensuring that the sealing ring can be accurately installed at the interface between the first hub 210 and the second hub 220. This positioning not only improves the convenience of installation but also significantly enhances the sealing effect between the sealing ring and the hub 200, effectively preventing gas leakage. At the same time, the sealing ring is firmly fixed within the sealing groove 211, which reduces its movement or deformation during operation, thereby improving its stability; and a stable sealing ring can maintain its sealing performance for a longer period, extending its service life.

[0065] In one possible implementation, please refer to the appendix. Figure 7 The tire mounting groove 230 includes a bottom wall 233 that contacts the tire 100; it should be understood that the bottom wall 233 here is formed by the bottom wall of the first tire mounting groove 231 and part of the bottom wall of the second tire mounting groove 232.

[0066] The bottom wall 233 is inclined relative to the axis of the wheel hub 200, and the end of the bottom wall 233 facing the inner cavity of the tire 100 is lower than the end of the bottom wall away from the inner cavity of the tire 100. Alternatively, the bottom wall is inclined downwards relative to the axis of the wheel hub 200. The axis of the wheel hub 200 is... Figure 7 In the X direction.

[0067] The inclined bottom wall 233 design allows the tire 100 to fit more tightly against the bottom wall 233 when it is installed into the tire mounting groove 230. As the tire 100 moves toward the axis of the wheel hub 200, the supporting force and restraining force of the bottom wall 233 on the tire 100 gradually increase, thereby more effectively fixing the tire 100 and preventing it from moving or falling off during driving.

[0068] Furthermore, the inclined bottom wall 233 design allows the tire 100 to slide more smoothly into the tire mounting groove 230 during installation, reducing friction and resistance during the installation process. Similarly, when removing the tire, the inclined bottom wall also helps the tire 100 slide out of the tire mounting groove 230 more easily, improving the efficiency and convenience of installation and removal.

[0069] In one possible implementation, please refer to the appendix. Figure 5 and appendix Figure 8 The second hub 220 has a mounting hole 225; the first hub 210 is mounted in the mounting hole 225 and protrudes from the mounting hole 225. Alternatively, the second hub 220 is fitted onto the first hub 210, which increases the contact area between the second hub 220 and the first hub 210, thereby improving the connection strength between the first hub 210 and the second hub 220.

[0070] Please continue to refer to the appendix. Figure 3 Appendix Figure 4 and appendix Figure 8 The first wheel hub 210 has a positioning groove 213 on the side facing the second wheel hub 220. The positioning groove 213 extends through the side of the first wheel hub 210 along the axis of the wheel hub 200 and away from the tire 100. The second wheel hub 220 is engaged in the positioning groove 213.

[0071] The design of the positioning groove 213 allows the second wheel hub 220 to be installed onto the first wheel hub 210 more easily and accurately, without the need for additional complex tools or installation steps. This reduces installation difficulty and improves work efficiency. Furthermore, the positioning groove 213 extends along the axis of the wheel hub 200 and away from the tire 100, passing through the side of the first wheel hub 210. This facilitates the movement of the second wheel hub 220 along the axis of the wheel hub 200 and allows it to be fitted onto the first wheel hub 210.

[0072] It should be noted that the first wheel hub 210 can also be connected to the second wheel hub 220 in other ways. For example, the first wheel hub 210 can be detachably connected to the second wheel hub 220 via a fastener 250. The fastener 250 can be a screw or a bolt.

[0073] Specifically, the second hub 220 is provided with a first connecting hole 226, the first hub 210 is provided with a second connecting hole, and an internal thread is formed in the second connecting hole. The first connecting hole 226 and the second connecting hole are aligned. One end of the fastener 250 passes through the first connecting hole 226 and is screwed into the second connecting hole.

[0074] When removing the tire 100, loosen the fastener 250 and remove the second wheel hub 220. At this time, the second wheel hub 220 is released from its restriction on the tire 100, which makes it easier to remove the tire 100 from the first wheel hub 210.

[0075] In this embodiment, there can be multiple first connecting holes 226, and the multiple first connecting holes 226 are arranged at intervals along the circumference of the second hub 220. In this way, the connection stability of the first hub 210 and the second hub 220 can be improved by setting multiple fasteners 250.

[0076] In one possible implementation, the portion of the first rim 210 exposed within the inner cavity of the tire 100 protrudes along a direction away from the axis of the rim 200 to form a positioning protrusion 212; the positioning protrusion 212 contacts the inner surface of the tire 100. The positioning protrusion 212 prevents the tire 100 from detaching from the rim 200 when subjected to impact or insufficient air pressure, thereby improving the installation stability of the tire 100 and the rim 200. Furthermore, the positioning protrusion 212 also serves to prevent water accumulation.

[0077] It should be understood that, in this embodiment, the first hub 210 is also provided with a shaft hole for the axle to pass through. Furthermore, to reduce wear between the first hub 210 and the axle, a bearing is also provided between them.

[0078] This application also provides a vehicle, which may include at least one of a scooter, a balance bike, an electric scooter, and an electric motorcycle. Since the vehicle includes the wheels provided in any of the above embodiments, it possesses all the structure and beneficial effects of a wheel, and will not be described in detail here.

[0079] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0080] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A wheel, characterized in that, Includes a tire and a hub with a tire mounting groove, wherein the tire is mounted in the tire mounting groove; The wheel hub includes a first wheel hub and a second wheel hub detachably connected to the first wheel hub. The second wheel hub is located on the side of the first wheel hub away from the inner cavity of the tire, and together with the first wheel hub, defines the tire mounting groove. The second wheel hub is exposed on at least a portion of the surface of the tire mounting groove and is fitted to the tire to form a sealing surface between the wheel hub and the tire.

2. The wheel according to claim 1, characterized in that, The surface of the second wheel hub exposed in the tire mounting groove includes a first arcuate surface, a first surface, a second arcuate surface, and a second surface connected in sequence; The first arc surface protrudes in the direction toward the tire, and the second arc surface protrudes in the direction away from the tire.

3. The wheel according to claim 2, characterized in that, A seal is provided between the first wheel hub and the second wheel hub.

4. The wheel according to any one of claims 1-3, characterized in that, A sealing groove is provided on the surface of the first wheel hub facing the second wheel hub; a sealing element is provided in the sealing groove, and the sealing element is sealed to the second wheel hub.

5. The wheel according to any one of claims 1-3, characterized in that, The tire mounting groove includes a bottom wall that contacts the tire; The bottom wall is inclined relative to the axis of the wheel hub, and the end of the bottom wall facing the inner cavity of the tire is lower than the end of the bottom wall away from the inner cavity of the tire.

6. The wheel according to any one of claims 1-3, characterized in that, The second hub has mounting holes; The first wheel hub is mounted in the mounting hole and protrudes from the mounting hole.

7. The wheel according to claim 6, characterized in that, The first wheel hub has a positioning groove on the side facing the second wheel hub. The positioning groove extends through the side of the first wheel hub along the axis of the wheel hub and away from the tire. The second wheel hub is fitted into the positioning groove.

8. The wheel according to claim 7, characterized in that, The first wheel hub is detachably connected to the second wheel hub by fasteners.

9. The wheel according to any one of claims 1-3, characterized in that, The portion of the first hub exposed inside the tire protrudes in a direction away from the axis of the hub to form a positioning protrusion; The positioning protrusion contacts the inner surface of the tire.

10. A vehicle, characterized in that, Includes the wheel as described in any one of claims 1-9.

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