A vehicle, an enclosed wheel, an enclosed wheel assembly

Abstract

This utility model provides a vehicle with a closed wheel and a closed wheel assembly, including: a rim, a bracket assembly, and a sealing plate; the bracket assembly is provided inside the rim, the bracket assembly includes an integrally formed hub and several spokes, and a sealing plate is provided between two adjacent spokes and the rim, each sealing plate has a through hole near the hub, and one sealing plate is provided with an air valve position. This utility model, while ensuring the advantage of closed wheels in reducing air resistance, effectively reduces unsprung mass by optimizing structural parameters, which helps to improve the vehicle's handling, ride comfort, acceleration performance, and braking performance.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a vehicle, a closed wheel, and a closed wheel assembly. Background Technology

[0002] Enclosed wheels are a type of wheel design that seals off the open areas of traditional wheels, i.e., the space between the spokes, through a sealing plate or an integral structure. Its core feature is that the outer side of the rim forms a continuous, streamlined surface without obvious openwork, thereby effectively reducing air resistance during vehicle operation. However, to achieve the sealing effect, existing enclosed wheels typically use rigid materials for the sealing plates, resulting in a heavy structure. This directly increases the unsprung mass of the vehicle (i.e., the mass that does not move with the suspension springs). Excessive unsprung mass reduces the vehicle's handling and ride comfort, as well as its acceleration and braking performance. Utility Model Content

[0003] This invention provides a vehicle, a closed wheel, and a closed wheel assembly, which can effectively solve the above problems.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a closed wheel assembly, including: a wheel rim, a bracket assembly, and a sealing plate;

[0006] The rim is provided with a support assembly, which includes an integrally formed hub and several spokes. A sealing plate is provided between two adjacent spokes and the rim. Each sealing plate has a through hole near the hub, and one of the sealing plates is provided with an air nozzle.

[0007] As a further improvement, the sealing plate is positioned at the middle of the side of the wheel spoke.

[0008] As a further improvement, the cross-sectional shape of the spokes is elliptical or teardrop-shaped, and the cross-sectional area of ​​the spokes gradually increases towards the hub.

[0009] As a further improvement, the through hole can be circular or polygonal in shape.

[0010] As a further improvement, the thickness of the rim and the spokes is 16-45mm, and the thickness of the sealing plate is 0.5-8mm.

[0011] As a further improvement, the rim has an arc-shaped curved surface on the side near the sealing plate.

[0012] An enclosed wheel includes a tire and a set of enclosed wheels; the tire is disposed on the rim.

[0013] A vehicle comprising the aforementioned type of enclosed wheel.

[0014] The beneficial effects of this utility model are:

[0015] This invention optimizes the structural design, controlling the thickness of the sealing plate to 0.5-8mm, far less than the 16-45mm thickness of the rim and spokes, significantly reducing the overall weight of the wheelset while ensuring a sealing effect. This design effectively reduces the unsprung mass of the vehicle, thereby improving handling and ride smoothness, while also improving acceleration and braking performance, solving the performance degradation problem caused by the heavy structure of traditional sealed wheels. The continuous streamlined surface formed by the sealing plate reduces air resistance during vehicle operation. The rim side near the sealing plate adopts an arc-shaped curved surface design, further optimizing aerodynamic performance. The spoke cross-section adopts an elliptical or teardrop shape, gradually increasing in area towards the hub, ensuring structural strength while reducing air disturbance and improving aerodynamic efficiency. The through-holes in the sealing plate near the hub balance the air pressure inside and outside the wheelset, preventing deformation or vibration of the sealing plate due to air pressure differences during operation, thus enhancing structural stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the closed wheel assembly structure of this utility model.

[0018] Figure 2 yes Figure 1 A cross-sectional view of section A.

[0019] Figure 3 yes Figure 1 A cross-sectional view of section B.

[0020] Figure 4 yes Figure 1 A cross-sectional view of section C.

[0021] Figure 5 This is an exploded view of the closed wheel assembly structure of this utility model.

[0022] In the diagram: 1-Rim, 2-Bracket assembly, 21-Hub, 22-Spoke, 3-Sealing plate, 4-Through hole, 5-Air nozzle position, 51-Cap, 52-Leaning groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model 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 utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Reference Figure 1-4As shown, a vehicle is equipped with a closed wheel, which includes a tire and a closed wheel assembly. The tire is disposed on a rim 1 of the closed wheel assembly. The closed wheel assembly includes a rim 1, a support assembly 2, and a sealing plate 3. The support assembly 2 is disposed inside the rim 1. The support assembly 2 is integrally formed with a hub 21 and several spokes 22. A sealing plate 3 is disposed between two adjacent spokes 22. The sealing plate 3 has several through holes 4 near the hub 21, one of which has an air valve position 5. The spokes 22 serve to support the wheel structure and connect the rim 1 and the hub 21. It is suitable for bicycle wheels and can also be used in other fields such as motorcycles, wheelchairs, and tricycles. The cross-sectional shape of the spokes 22 at the connection with the rim 1 includes, but is not limited to, elliptical, teardrop, and flat shapes. The area gradually increases towards the hub 21. In this embodiment, the elliptical shape is more suitable for application on the spokes 22 than other shapes. The spokes 22 are generally airfoil-shaped. When the wheel rotates, because the sealing plate 3 is connected to the spokes 22, the airflow flows along the surface of the sealing plate 3 and the surface of the spokes 22. Because the spokes 22 are elliptical, the turbulence of the airflow on the surface can be reduced, allowing the airflow to flow more smoothly along the surface, reducing the friction area and intensity between the airflow and the surface, thereby reducing the airflow friction resistance. In addition, the axis of symmetry of the elliptical spokes 22 can be matched with the direction of the combined velocity of the airflow, so that the pressure difference on both sides is as small as possible, thereby reducing the amplitude of the lateral force and avoiding vibration or fatigue damage to the spokes 22 due to excessive lateral force. The sealing effect of the sealing plate 3 restricts the airflow diffusion on the outside of the spokes 22, making the airflow more concentrated on the streamlined path of the spoke surface, reducing the lateral force fluctuation caused by airflow turbulence.

[0026] Furthermore, a sealing plate 3 is provided between two adjacent spokes 22 and the rim 1. The sealing plate 3 is positioned between adjacent spokes 22, so that the forces on both sides of the sealing plate are symmetrical. When the wheel rotates, the airflow pressure difference on both sides can be evenly distributed to the spokes, reducing local stress concentration. It directly fills the hollow area between the spokes 22 and the rim 1, so that the outer side of the closed wheel assembly forms a continuous surface without obvious hollows. This avoids the additional air resistance caused by the airflow impact and vortex between the spokes 22 in traditional hollow wheels, thereby improving the aerodynamic efficiency of the vehicle. The sealing plate 3 is located in the middle of the side of the spokes 22, which makes the airflow pressure on both sides of the sealing plate 3 uniform and symmetrical when the wheel rotates. It also makes the connection structure between the sealing plate 3 and the spokes 22 more balanced, reducing local stress concentration and extending the service life of the wheel assembly.

[0027] When a traditional enclosed wheel rotates, the air at the hub 21 is transmitted to the rim by centrifugal force, causing stress concentration near the hub. Therefore, the sealing plate 3 has several through holes 4 near the hub 21. The through holes 4 can effectively reduce the weight of the sealing plate 3, thereby reducing the unsprung mass of the wheel assembly, balancing the internal and external air pressure, eliminating pressure differences to maintain the stability of the wheel structure, reducing airflow turbulence, optimizing aerodynamic efficiency, making the airflow of the wheel assembly smoother, and enhancing the low wind resistance advantage of the enclosed wheel. The through holes 4 can be circular or polygonal in shape. In this embodiment, the through holes 4 are triangular in shape. The triangular design can guide the airflow more smoothly through the through holes 4 and maximize the weight reduction effect while ensuring structural strength, thereby reducing the unsprung mass and improving vehicle handling, ride comfort, and braking performance.

[0028] Furthermore, the thickness of the rim 1 and spokes 22 is 16-45mm, and the thickness of the end plate 3 is 0.5-8mm. The rim 1 has an arc-shaped curved surface on the side near the end plate 3. By controlling the thickness of the rim 1 and spokes 22, as well as the thickness of the end plate 3, the sealing effect of the wheel is ensured while the overall weight of the wheelset is significantly reduced, thereby improving the vehicle's handling, ride smoothness, acceleration performance, and braking performance. The arc-shaped curved surface design makes the connection area between the rim 1 and the end plate 3 smoother. When the vehicle is in motion, the airflow flows along the surface of the wheelset. The arc-shaped curved surface can eliminate the airflow turbulence and vortex generation caused by right angles or sharp corners, allowing the airflow to flow more smoothly along the surface of the wheelset, further reducing the air resistance during vehicle operation. The smooth curved surface transition can reduce the friction and impact of the airflow at the connection between the rim 1 and the end plate 3, reducing energy loss. Combined with the sealing structure of the end plate 3 and the streamlined design of the spokes 22, the overall aerodynamic efficiency of the wheelset is improved.

[0029] Furthermore, referring to Figure 5As shown, to facilitate tire inflation, a valve position 5 is provided on a sealing plate 3 of the sealed wheel assembly. The valve position 5 includes a relief groove 52 and a cover 51. The relief groove 52 is integrally formed on the sealing plate 3 and protrudes to one side of the sealing plate 3. An air hole is provided inside the relief groove 52 near the rim 1. The air hole is used to connect an air inflator, allowing the user to inflate the tire using the air inflator. The cover 51 is provided on the relief groove 52 and protrudes to the other side of the sealing plate 3. The cover 51 is used to seal the relief groove 52 to prevent tire air leakage. The cover 51 can be connected by snap-fit, adhesive, or bolts. The cover 51 is fixedly connected to the relief groove 52. In order to reduce the wind resistance generated by the relief groove 52 when the wheel rotates, the shape of the relief groove 52 can be teardrop-shaped or elliptical, so that the gas can flow more smoothly along the surface of the relief groove 52, maintain the streamlined path of the airflow on the surface of the cover plate, and reduce the additional air resistance generated by airflow impact and eddies. Similarly, the shape of the cover 51 is adapted to the shape of the relief groove 52, and the distance of the relief groove 52 protruding from the cover plate 3 is equal to the distance of the cover 51 protruding from the cover plate 3, so as to balance the airflow on both sides of the wheel set and avoid uneven airflow on both sides of the wheel set, which would lead to pressure difference and cause wheel set vibration or fatigue damage.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A closed wheel wheelset, characterized in that, include: Wheel rim (1), bracket assembly (2), and sealing plate (3); The rim (1) is provided with a support group (2) inside. The support group (2) includes an integrally formed hub (21) and several spokes (22). A sealing plate (3) is provided between two adjacent spokes (22) and the rim (1). Each sealing plate (3) has a through hole (4) near the hub (21). One of the sealing plates (3) is provided with an air nozzle position (5).

2. A closed wheel wheelset according to claim 1, wherein, The sealing plate (3) is located at the middle position along the side of the spoke (22).

3. A closed wheel wheelset according to claim 1, wherein, The cross-sectional shape of the spoke (22) is elliptical or teardrop-shaped, and the cross-sectional area of ​​the spoke (22) gradually increases towards the hub (21).

4. A closed wheel wheelset according to claim 1, wherein, The through hole (4) is circular or polygonal in shape.

5. A closed wheel wheelset according to claim 1, wherein, The thickness of the rim (1) and the spokes (22) is 16-45mm, and the thickness of the sealing plate (3) is 0.5-8mm.

6. A closed wheel wheelset according to claim 1, wherein, The rim (1) has an arc-shaped curved surface on the side near the sealing plate (3).

7. A closed wheel characterised in that, Includes a tire and a closed wheel assembly as described in any one of claims 1-6; the tire is disposed on the rim.

8. A vehicle, characterized in that, Including a closed wheel as described in claim 7.

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