A vehicle wheel cover that prevents stone chipping
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-11
AI Technical Summary
[0005]为了解决现有技术中传统轮罩在防飞溅和降噪方面的效果不理想的问题，本实用新型提供一种防飞溅石子的汽车轮罩；
[0016]本实用新型通过采用双层包裹的夹心结构，芯体采用铝合金型材焊接而成，质量轻且强度高，既减轻了汽车负担，又保证了轮罩的结构稳定性和耐用性；柔性防护布采用防水透气的聚酰胺纤维材料并涂覆防刮涂层，有效防止雨水和刮擦，提高了轮罩的防护性能和使用寿命；刚性防刮层采用聚碳酸酯板材并设置菱形防滑纹理，能有效阻挡石子刮擦并引导石子排出；弹性缓冲层采用发泡聚氨酯材料和中空腔室设计，可吸收和分散石子撞击能量；吸音吸附层采用聚酯纤维棉和橡胶吸附颗粒，能吸收噪音并吸附小石子和灰尘。各层之间通过环保型聚氨酯胶粘剂粘结，保证了层间连接强度和耐候性；
Smart Images
Figure CN224617800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts, and in particular to a car wheel cover that protects against flying stones. Background Technology
[0002] During driving, car wheels kick up stones, mud, and other debris from the road. These flying objects can not only cause scratches and dents to the car body, affecting its appearance and lifespan, but also pose safety hazards to pedestrians and other vehicles. Therefore, car wheel covers are widely used as an important protective component on various types of cars.
[0003] Traditional car wheel covers typically use a single material or a simple structural design, such as plastic wheel covers or metal wheel covers. While plastic wheel covers have the advantages of being lightweight and low-cost, they have poor strength and wear resistance, and are easily scratched or deformed by stones or impacts, thus failing to provide effective protection. Metal wheel covers, although strong, are heavy, which increases the car's energy consumption and is prone to rust and corrosion, affecting their service life.
[0004] In addition, traditional wheel covers are not ideal in terms of protection against splashes and noise reduction; when stones hit the wheel covers, they will generate a lot of noise, affecting the comfort of passengers inside the vehicle; at the same time, some stones may accumulate inside the wheel covers, causing secondary splashes and further increasing the risk of damage to the vehicle body; moreover, traditional wheel covers have limited protection against stones of different sizes and speeds, making it difficult to meet the needs of use in complex road conditions. Utility Model Content
[0005] To address the problem that traditional wheel covers in the prior art are not ideal in terms of preventing splashes and reducing noise, this utility model provides a car wheel cover that prevents splashing stones.
[0006] The present invention provides a car wheel cover to prevent splashing stones, which adopts the following technical solution:
[0007] A car wheel cover for preventing flying stones includes a mounting bracket and a wheel cover body. The mounting bracket is fixedly connected to the car frame to support the wheel cover body. The wheel cover body is a double-layered sandwich structure, including a core and a flexible protective cloth covering the outside of the core. A snap-fit shell is fitted to the tire-facing side of the core to clamp and fix the flexible protective cloth on both sides, and the snap-fit shell is fixed to the core by bolts. The bottom of the snap-fit shell is provided with multiple protective layers.
[0008] Furthermore, the core is welded from aluminum alloy profiles, and its shape is adapted to the contour of the wheel, covering a 120°-180° range above and to the side of the wheel.
[0009] Furthermore, the multiple protective layers are arranged sequentially from the side closest to the tire to the outside as a rigid anti-scratch layer, an elastic buffer layer, and a sound-absorbing layer. Each layer is bonded and fixed with an environmentally friendly polyurethane adhesive with an adhesive coating thickness of 0.1-0.2 mm to ensure the interlayer connection strength and weather resistance.
[0010] Furthermore, the flexible protective fabric is made of waterproof and breathable polyamide fiber material, and the surface is coated with a polytetrafluoroethylene anti-scratch coating with a thickness of 0.5-1.2mm;
[0011] Furthermore, the rigid anti-scratch layer is made of polycarbonate sheet with a thickness of 2-3mm and has a diamond-shaped anti-slip texture on the surface;
[0012] Furthermore, the elastic buffer layer is made of foamed polyurethane material with a thickness of 10-15mm and hollow cavities with a diameter of 5-8mm are evenly distributed inside.
[0013] Furthermore, the sound-absorbing layer is made of polyester fiber cotton with a thickness of 8-12mm, and the surface is bonded with rubber adsorption particles with a diameter of 1-2mm.
[0014] Furthermore, the depth of the diamond-shaped anti-slip texture is 0.5-1mm, the texture spacing is 2-3mm, and the texture direction is at an angle of 30°-60° with the radial direction of the wheel. This can guide the splashed stones to be discharged to the outside of the wheel cover along the texture direction, reducing the vertical impact of stones on the rigid anti-scratch layer.
[0015] In summary, the beneficial effects of this utility model are as follows:
[0016] This invention employs a double-layered sandwich structure. The core is welded from aluminum alloy profiles, resulting in a lightweight yet high-strength design that reduces the vehicle's load while ensuring the wheel cover's structural stability and durability. The flexible protective fabric uses waterproof and breathable polyamide fiber material coated with an anti-scratch layer, effectively preventing rain and scratches, thus improving the wheel cover's protective performance and lifespan. The rigid anti-scratch layer uses polycarbonate sheets with a diamond-shaped anti-slip texture, effectively blocking stone scratches and guiding stones out. The elastic buffer layer uses foamed polyurethane material and a hollow cavity design to absorb and disperse the impact energy of stones. The sound-absorbing layer uses polyester fiber cotton and rubber adsorption particles to absorb noise and adsorb small stones and dust. All layers are bonded together with environmentally friendly polyurethane adhesive, ensuring interlayer bonding strength and weather resistance.
[0017] In summary, the automotive wheel cover of this invention improves splash protection, noise reduction, and durability in multiple aspects, and solves the technical problems of traditional automotive wheel covers in terms of protection, energy consumption, lifespan, and comfort. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a bottom view of the overall structure of this utility model.
[0020] As shown in the figure: 1-core, 2-mounting bracket, 3-flexible protective cloth, 4-clasp, 5-multiple protective layers, 51-sound-absorbing and adsorbing layer, 52-elastic buffer layer, 53-rigid anti-scratch layer. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1-2 The present invention will be further described in detail below:
[0022] This utility model discloses a car wheel cover to prevent splashing stones, such as Figure 1 , 2 As shown, a car wheel cover for preventing flying stones includes a mounting bracket 2 and a wheel cover body. The mounting bracket 2 is fixedly connected to the car frame to support the wheel cover body. The wheel cover body is a double-layered sandwich structure, including a core 1 and a flexible protective cloth 3 covering the outside of the core 1. A snap-fit shell 4 is fitted to the tire-facing side of the core 1 to clamp and fix the flexible protective cloth 3 on both sides, and the snap-fit shell 4 is fixed to the core 1 by bolts. Multiple protective layers 5 are provided at the bottom of the snap-fit shell 4. In this embodiment, the mounting bracket 2 is fixed to the car frame to provide a stable support base for the wheel cover body, ensuring that the wheel cover will not shake or shift during car operation. The wheel cover body adopts a double-layered sandwich structure, with the core 1 serving as the main supporting skeleton, providing a certain strength and shape retention capability. The flexible protective cloth... The flexible protective cloth 3 covers the outside of the core 1, providing protection and cushioning. The snap-on shell 4 fits snugly against the contour of the core 1, clamping the two sides of the flexible protective cloth 3 and securing it with bolts. This connection method ensures the installation of the flexible protective cloth 3 firmly and facilitates disassembly and replacement. The bottom of the snap-on shell 4 is equipped with multiple protective layers 5 to protect against different characteristics of flying stones, improving the anti-splash performance of the wheel cover from multiple aspects. The mounting bracket 2 ensures the stable installation of the wheel cover, enabling it to reliably perform its anti-splash function and preventing the protective effect from being affected by loosening. The double-layered sandwich structure combined with the multiple protective layers 5 enhances the overall protective performance of the wheel cover, not only blocking flying stones but also reducing the noise and damage caused by stone impacts. The easy-to-disassemble and replaceable structural design facilitates later maintenance and reduces operating costs.
[0023] The core 1 is welded from aluminum alloy profiles, and its shape is adapted to the contour of the wheel, covering a 120°-180° range above and to the sides of the wheel. In this embodiment, aluminum alloy profiles have advantages such as light weight, high strength, and corrosion resistance. The welded core 1 can provide sufficient structural strength while reducing the overall weight of the wheel cover, without adding too much burden to the car. The shape of the core 1 is adapted to the contour of the wheel and covers a 120°-180° range above and to the sides of the wheel, which can cover the area where the wheel may splash stones to the maximum extent, effectively preventing stones from splashing to other parts of the car body. The use of aluminum alloy material improves the durability and corrosion resistance of the wheel cover and extends its service life. The appropriate coverage range ensures effective protection against stones splashed from the wheel, reduces damage to the car body from stones, and protects the appearance and performance of the car.
[0024] Furthermore, the multiple protective layers 5 are sequentially configured from the side closest to the tire to the outside as a rigid anti-scratch layer 53, an elastic buffer layer 52, and a sound-absorbing layer 51. Each layer is bonded and fixed with an environmentally friendly polyurethane adhesive with a coating thickness of 0.1-0.2 mm to ensure interlayer bonding strength and weather resistance. In this embodiment, the rigid anti-scratch layer 53 is located closest to the tire and directly withstands the impact of stones. Its hard material prevents stones from scratching the wheel arch and protects the internal structure. The elastic buffer layer 52 has a certain degree of elasticity; when a stone impacts the rigid anti-scratch layer 53, the elastic buffer layer 52 can absorb and disperse the impact energy, reducing damage to the wheel arch. The wheel cover absorbs the impact of other parts; the sound-absorbing and adsorbing layer 51 can absorb the noise generated by the impact of stones, and at the same time adsorb some smaller stones and dust, further improving the protective effect of the wheel cover; the environmentally friendly polyurethane adhesive bonds the layers, which not only ensures the connection strength between the layers and enables the layers to work together, but also has good weather resistance and can maintain stable performance under different environmental conditions; the setting of multiple protective layers 5 improves the protective performance of the wheel cover from multiple aspects such as scratch prevention, cushioning, sound absorption and adsorption, effectively protecting the car body and the wheel cover itself; the use of environmentally friendly adhesives not only ensures the quality and performance of the wheel cover, but also meets environmental protection requirements and is environmentally friendly;
[0025] Furthermore, the flexible protective fabric 3 is made of waterproof and breathable polyamide fiber material, with a polytetrafluoroethylene (PTFE) anti-scratch coating on the surface, the thickness of which is 0.5-1.2mm. In this embodiment, the polyamide fiber material has good strength and wear resistance, while also possessing waterproof and breathable properties. The waterproof function can prevent rainwater, mud, etc., from entering the wheel cover, protecting the core 1 and other components. The breathable function can expel moisture from inside the wheel cover, preventing components from rusting or being damaged due to dampness. The PTFE anti-scratch coating on the surface has a low coefficient of friction and high wear resistance, which can effectively prevent stones and other objects from scratching the flexible protective fabric 3, extending its service life.
[0026] Furthermore, the rigid anti-scratch layer 53 is made of polycarbonate sheet with a thickness of 2-3mm and a diamond-shaped anti-slip texture on the surface. In this embodiment, the polycarbonate sheet has advantages such as high strength and good impact resistance, and can withstand the high-speed impact of stones without breaking, effectively protecting the internal structure of the wheel cover. The diamond-shaped anti-slip texture on the surface not only increases the friction of the rigid anti-scratch layer 53, making it less likely for stones to slip during impact, but also guides the stones to be discharged. The use of polycarbonate sheet ensures the strength and impact resistance of the rigid anti-scratch layer 53, improving the protective effect of the wheel cover. The design of the diamond-shaped anti-slip texture reduces the vertical impact of stones on the rigid anti-scratch layer 53, reduces the degree of damage to the wheel cover, and guides the stones to be discharged to the outside of the wheel cover, improving the anti-splash efficiency of the wheel cover.
[0027] Furthermore, the elastic buffer layer 52 is made of foamed polyurethane material with a thickness of 10-15mm and hollow cavities with a diameter of 5-8mm evenly distributed inside. In this embodiment, the foamed polyurethane material has good elasticity and buffering performance. When a stone impacts the rigid anti-scratch layer 53, the elastic buffer layer 52 can absorb and disperse the impact energy through its own deformation. The evenly distributed hollow cavities inside increase the elasticity and compressibility of the elastic buffer layer 52, enabling it to better adapt to the impact of stones of different sizes and speeds, and further improve the buffering effect.
[0028] Furthermore, the sound-absorbing layer 51 is made of polyester fiber cotton with a thickness of 8-12mm, and rubber adsorption particles with a diameter of 1-2mm are bonded to the surface; in this embodiment, the polyester fiber cotton has good sound absorption performance and can absorb the noise generated by the impact of stones, reducing the noise interference to passengers in the vehicle; the rubber adsorption particles bonded to the surface have a further buffering effect.
[0029] Furthermore, the depth of the diamond-shaped anti-slip texture is 0.5-1mm, the texture spacing is 2-3mm, and the texture direction forms an angle of 30°-60° with the radial direction of the wheel. This guides the splashed stones to be discharged outwards along the texture direction, reducing the vertical impact of stones on the rigid anti-scratch layer 53. In this embodiment, the diamond-shaped anti-slip texture with a specific depth and spacing forms a certain guiding channel. When a stone hits the rigid anti-scratch layer 53, the texture can change the direction of the stone's movement, causing it to move along the texture direction. The 30°-60° angle between the texture direction and the radial direction of the wheel effectively guides the stone to the outside of the wheel cover, preventing the stone from hitting the rigid anti-scratch layer 53 vertically and reducing the impact force on the rigid anti-scratch layer 53. The function of guiding the stone to be discharged improves the anti-splash efficiency of the wheel cover, reduces the accumulation of stones inside the wheel cover and the possibility of secondary splashing. Reducing vertical impact lowers the risk of damage to the rigid anti-scratch layer 53, extends the service life of the rigid anti-scratch layer 53, and thus improves the overall protective performance of the wheel cover.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A stone-splashing-preventing automobile wheel cover, comprising a mounting support (2) and a wheel cover main body; the mounting support (2) is fixedly connected to an automobile frame and used for supporting the wheel cover main body; characterized in that: The wheel cover body is a double-layered sandwich structure, including a core (1) and a flexible protective cloth (3) covering the outside of the core (1); a buckle shell (4) is attached to the tire side of the core (1) to clamp and fix the flexible protective cloth (3) on both sides, and the buckle shell (4) is fixed to the core (1) by bolts; multiple protective layers (5) are provided at the bottom of the buckle shell (4).
2. The automobile wheel cover of claim 1, wherein The core (1) is welded from aluminum alloy profiles, and its shape is adapted to the contour of the wheel, covering a range of 120°-180° above and to the side of the wheel.
3. The automobile wheel cover of claim 1, wherein The multiple protective layers (5) are arranged sequentially from the side closest to the tire to the outside as a rigid anti-scratch layer (53), an elastic buffer layer (52), and a sound-absorbing layer (51). Each layer is bonded and fixed with an environmentally friendly polyurethane adhesive with an adhesive coating thickness of 0.1-0.2 mm to ensure the interlayer connection strength and weather resistance.
4. A car wheel cover for preventing flying stones according to claim 1, characterized in that... The flexible protective fabric (3) is made of waterproof and breathable polyamide fiber material, and the surface is coated with a polytetrafluoroethylene anti-scratch coating with a thickness of 0.5-1.2mm.
5. A car wheel cover for preventing flying stones according to claim 3, characterized in that... The rigid anti-scratch layer (53) is made of polycarbonate sheet with a thickness of 2-3mm and has a diamond-shaped anti-slip texture on the surface.
6. A car wheel cover for preventing flying stones according to claim 3, characterized in that... The elastic buffer layer (52) is made of foamed polyurethane material with a thickness of 10-15mm and hollow cavities with a diameter of 5-8mm are evenly distributed inside.
7. A car wheel cover for preventing flying stones according to claim 3, characterized in that... The sound-absorbing and adsorbing layer (51) is made of polyester fiber cotton with a thickness of 8-12mm and rubber adsorbing particles with a diameter of 1-2mm are bonded to the surface.
8. A car wheel cover for preventing flying stones according to claim 5, characterized in that, The depth of the diamond-shaped anti-slip texture is 0.5-1mm, the texture spacing is 2-3mm, and the texture direction is at an angle of 30°-60° with the radial direction of the wheel. This can guide the splashed stones to be discharged to the outside of the wheel cover along the texture direction, reducing the vertical impact of the stones on the rigid anti-scratch layer (53).