A type of car mudguard
By designing mudguards with mud-blocking grooves and connecting plates, the problems of large installation space, high assembly difficulty, and mud and water pollution have been solved, achieving efficient interception of mud and water, simplifying installation, and enhancing structural strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU KANG HONG PLASTIC PROD CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-03
AI Technical Summary
Existing car mudguards have problems such as large installation space, high assembly difficulty, limited interception range, and too many components. In addition, the traditional straight-plate structure can easily contaminate the vehicle body with mud and water when the vehicle is in motion.
Design a car mudguard, including a mudguard groove and a connecting piece. The mudguard groove is located behind the wheel and adopts an arc-shaped and inclined surface structure. The connecting piece is detachably connected to the outer frame of the wheel by bolts and has internal reinforcing ribs to enhance the structural strength.
It improves mud and water interception efficiency, reduces the probability of vehicle body pollution, simplifies the installation process, adapts to more vehicle models, and enhances impact resistance and service life.
Smart Images

Figure CN224447922U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically an automotive mudguard. Background Technology
[0002] Car mudguards are typically plate-like structures installed behind or around the outer frame of a car wheel. Their function is to block mud and sand kicked up by the wheels when the car is in motion. This prevents mud and sand from splashing onto pedestrians near the vehicle and also provides some protection for the vehicle's chassis.
[0003] Chinese patent CN205022698U discloses a car mudguard and a car having the same. The technical solution provided adopts a front and rear mudguard structure. On the one hand, in actual use scenarios, the mudguard located in front of the wheel is only useful in situations such as reversing, so its application scope is limited. On the other hand, this structure of using a cover plate with front and rear mudguards is not convenient to install on a car, as it requires a large installation space and a suitable wheel size.
[0004] Chinese patent CN209126820U discloses a new type of mudguard for electric vehicles, which adopts a sheet structure and has rubber pads and flanges on the sheet mudguard. The rubber pads are elastic enough to deal with mud and sand splashes, and the flanges improve the overall strength to a certain extent. However, in actual use, the mudguard has too many parts and requires additional rubber pads, iron sheets and other structures to be set on the plate, which makes the assembly difficult. Moreover, the interception range of this straight plate mudguard is limited by the space of the plate surface. Utility Model Content
[0005] The purpose of this utility model is to provide an automobile mudguard to address the aforementioned problems.
[0006] The technical solution adopted by this utility model is as follows: a car mudguard includes a mudguard body, and the mudguard body is detachably connected to the outer frame of the car wheel. The mudguard body is located behind the wheel along the direction of the car's travel. One side of the mudguard body is provided with a mudguard groove and a connecting piece, and the mudguard groove is directly opposite the wheel. The connecting piece is located at the opening of the mudguard groove and can be detachably connected to the outer frame of the car wheel.
[0007] Furthermore, one side of the mudguard body protrudes away from the vehicle wheel and forms a mudguard groove, allowing mud splashed up by the vehicle to enter the mudguard groove.
[0008] Furthermore, the upper end face of the mudguard groove is an arc-shaped surface, and the lower end face of the mudguard groove is an inclined surface.
[0009] Furthermore, the arc-shaped surface can fit against the outer frame of the car wheel, and the arc-shaped surface is perpendicularly connected to the connecting piece.
[0010] Furthermore, the inclined surface is inclined downwards toward the direction of the car wheel.
[0011] Furthermore, the connecting piece is provided with mounting holes, through which bolts pass, and the connecting piece is detachably connected to the outer frame of the car wheel by bolts.
[0012] Furthermore, a positioning piece is provided on one side of the arc-shaped surface, and the positioning piece is far away from the connecting piece and can fit with the outer frame of the car wheel. The positioning piece is provided with a positioning hole, and a bolt passes through the positioning hole. The positioning piece is detachably connected to the outer frame of the car wheel by the bolt.
[0013] Furthermore, the mudguard groove is provided with reinforcing ribs, and the reinforcing ribs are connected to the arc-shaped surface and the bottom surface of the mudguard groove respectively.
[0014] Furthermore, the reinforcing ribs are triangular in shape.
[0015] The beneficial effects of this utility model include at least one of the following;
[0016] 1. A car mudguard is provided, the main body of which includes a mudguard groove and a connecting piece. The mudguard groove provides a recessed groove-shaped space, which is better able to match the trajectory of mud, water and stones when the wheel rotates compared to the straight plate structure. At the same time, when the mud and water brought up by the wheel hit the mudguard, the groove can function as a directional collection groove and can guide the splashes to gather in the groove, rather than sliding along the plate surface to other parts of the vehicle body in the traditional straight plate structure, thereby significantly reducing the probability of mud and water contaminating the vehicle body.
[0017] 2. The specific shape of the mudguard groove is designed. The upper end is arc-shaped, which is more conducive to its fit with the outer frame of the car wheel. At the same time, the lower end is inclined, which is more conducive to the timely discharge of mud and dirt in the recessed groove space.
[0018] 3. The combination of mounting holes and positioning holes allows for detachable connection between the car mudguard and the outer frame of the car wheel. This facilitates alignment and reduces the space required for connection compared to existing technologies, making it suitable for a wider range of car models. Attached Figure Description
[0019] Figure 1 A schematic diagram of an actual installation of a car mudguard;
[0020] Figure 2 A schematic diagram of a car mudguard structure;
[0021] Figure 3This is a schematic diagram of a car mudguard structure from another angle.
[0022] Figure 4 This is a schematic diagram of the working surface structure of an automobile mudguard.
[0023] In the picture:
[0024] 1 is the mudguard body, 2 is the inclined surface, 3 is the connecting piece, 4 is the positioning piece, 5 is the mounting hole, 6 is the arc-shaped surface, 7 is the mudguard groove, 8 is the reinforcing rib, and 9 is the positioning hole. Detailed Implementation
[0025] 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 some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described in the accompanying drawings can typically be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0027] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] like Figures 1 to 4 As shown, a car mudguard includes a mudguard body 1, which is detachably connected to the outer frame of a car wheel. The mudguard body 1 is located behind the wheel along the direction of travel of the car. One side of the mudguard body 1 is provided with a mudguard groove 7 and a connecting piece 3. The mudguard groove 7 is directly opposite the wheel. The connecting piece 3 is located at the opening of the mudguard groove 7 and can be detachably connected to the outer frame of the car wheel.
[0032] The purpose of this design is to provide a car mudguard whose main body includes a mudguard groove and a connecting piece. The mudguard groove provides a recessed groove-shaped space, which is better suited to the trajectory of mud, water and stones thrown when the wheel rotates compared to a straight plate structure. At the same time, when mud and water kicked up by the wheel hit the mudguard, the groove can function as a directional collection groove and guide the splashes to gather in the groove, rather than sliding along the plate surface to other parts of the car body in the traditional straight plate structure, thereby significantly reducing the probability of mud and water contaminating the car body.
[0033] It should also be pointed out that, Figure 1 As can be seen from this embodiment, the car mudguard is mainly installed behind the car wheels, and each car wheel is equipped with one. Of course, in actual use, those skilled in the art can set it in front of or behind the car wheels according to actual needs.
[0034] Meanwhile, in this embodiment, one side of the mudguard body 1 protrudes away from the car wheel and forms a mudguard groove 7, and the mud splashed up when the car is moving can enter the mudguard groove 7.
[0035] The purpose of this design is to create a mudguard groove by protruding from the existing mudguard structure. Compared with the existing technology, it has a significantly protruding area. Of course, in some application scenarios, those skilled in the art can increase the thickness of the mudguard and then embed the mudguard groove into the mudguard.
[0036] Meanwhile, in order to ensure that mud splashed up by the car during driving can enter the mudguard groove during the design process, it is necessary to analyze the parameters of specific car models. By using Catia to design 3D data and CFD simulation analysis to optimize the impact of mud splash on pedestrians and the area obstructed by the chassis, the maximum area of the mudguard is determined based on parameters such as the maximum inner and outer wheel turning angles and the dynamic disturbance of the front and rear suspensions. Taking the 2025 Toyota Prado as an example, the minimum gap between the mudguard and the wheel is set at 15mm during installation. At the same time, the use of this groove design effectively increases the obstruction area by about 30%.
[0037] In this embodiment, the upper end surface of the mudguard groove 7 is an arc-shaped surface 6, and the lower end surface of the mudguard groove 7 is an inclined surface 2. The arc-shaped surface 6 can fit with the outer frame of the car wheel, and the arc-shaped surface 6 is perpendicularly connected to the connecting piece 3. The inclined surface 2 is inclined downward towards the direction of the car wheel.
[0038] The purpose of this design is to design the specific shape of the mudguard groove. The upper arc-shaped structure is more conducive to its fit with the outer frame of the car wheel, while the lower inclined structure is more conducive to the timely discharge of mud and dirt from the recessed groove space.
[0039] It should be noted that since a protruding mudguard groove is set on the mudguard body, it will inevitably form an upper end face and a lower end face. Figure 1 As shown, the red area is usually where the mudguard is installed. It is an arc-shaped structure. Therefore, the upper surface of the mudguard groove is designed with an arc-shaped structure to match it so that it can fit. The mud and sand splashed into the mudguard groove will flow down along the inclined lower surface. Especially on the ground with water or slippery road surface, this design has a better interception effect on the water flow splashed by the tire sidewall.
[0040] It should be noted that when choosing the material for the mudguard, PP+E / P or PP+E / P-TD20 can be selected. This is produced by injection molding, which, compared with existing technologies, reduces the overall weight while ensuring the mudguard effect, and has the effects of being lightweight, high-strength, and corrosion-resistant.
[0041] In this embodiment, the connecting piece 3 is provided with a mounting hole 5, through which a bolt passes, and the connecting piece 3 is detachably connected to the outer frame of the car wheel by the bolt. A positioning piece 4 is provided on one side of the arc-shaped surface 6, and the positioning piece 4 is away from the connecting piece 3 and can fit against the outer frame of the car wheel. The positioning piece 4 is provided with a positioning hole 9, through which a bolt passes, and the positioning piece 4 is detachably connected to the outer frame of the car wheel by the bolt.
[0042] In practical use, first, the connecting piece and the curved surface are fitted to the outer frame of the car wheel. Then, their positions are adjusted so that the bolts can pass through the positioning holes to position the mudguard to the outer frame of the car wheel. Next, the bolts are inserted into the mounting holes on the connecting piece to connect it to the outer frame of the car wheel. Usually, the connection requires pre-drilling corresponding bolt holes on the outer frame of the car wheel according to the specific dimensions. In addition, some cars have used similar connection structures before, so the previously drilled bolt holes can be reused, and some mounting holes can be selected for connection according to actual needs.
[0043] In this embodiment, a reinforcing rib 8 is provided inside the mudguard groove 7, and the reinforcing rib 8 is connected to the arc-shaped surface 6 and the bottom surface of the mudguard groove 7 respectively. At the same time, the reinforcing rib 8 is triangular.
[0044] The purpose of this design is that, in multiple verification tests, the edges of existing plate-shaped mudguards are flat or simple arcs. When hit by stones, the impact force is concentrated in a local area, which can easily lead to dents on the plate surface or breakage at the edges.
[0045] Although a groove structure is used in this embodiment, the bottom of the groove may be dented or deformed under the impact of large stones. Therefore, a triangular and sawtooth-like reinforcing rib structure is set in the mudguard groove to reinforce the bottom surface. By dispersing the impact stress, the unidirectional impact force can be transformed into a multidirectional dispersed force, reducing the risk of local deformation.
[0046] Furthermore, the triangular edges disrupt the continuous impact path of stones, reducing the direct impact force on the mudguard. This design significantly improves the mudguard's impact resistance and service life under complex road conditions.
[0047] It should be noted that the bottom surface of the mudguard groove referred to in this embodiment can be understood as the side that interacts with splashes of mud and sand.
[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A fender for a vehicle, comprising a fender body (1) which is detachably connected to an outer frame of a vehicle wheel and which is located behind the wheel in the direction of travel of the vehicle, characterized in that The mudguard body (1) has a mudguard groove (7) and a connecting piece (3) on one side, and the mudguard groove (7) is facing the wheel. The connecting piece (3) is located at the opening of the mudguard groove (7) and can be detachably connected to the outer frame of the car wheel.
2. The automobile mudguard according to claim 1, characterized in that, The mudguard body (1) protrudes in a direction away from the car wheel and forms a mudguard groove (7), and the mud splashed up when the car is moving can enter the mudguard groove (7).
3. A car mudguard according to claim 2, characterized in that, The upper end face of the mudguard groove (7) is an arc-shaped surface (6), and the lower end face of the mudguard groove (7) is an inclined surface (2).
4. A car mudguard according to claim 3, characterized in that, The arc-shaped surface (6) can fit against the outer frame of the car wheel, and the arc-shaped surface (6) is perpendicularly connected to the connecting piece (3).
5. A car mudguard according to claim 3, characterized in that, The inclined surface (2) is inclined downwards toward the direction of the car wheel.
6. A car mudguard according to claim 3, characterized in that, The connecting piece (3) is provided with a mounting hole (5), a bolt passes through the mounting hole (5), and the connecting piece (3) is detachably connected to the outer frame of the car wheel by the bolt.
7. A car mudguard according to claim 6, characterized in that, A positioning piece (4) is provided on one side of the arc-shaped surface (6), and the positioning piece (4) is far away from the connecting piece (3) and can fit with the outer frame of the car wheel. A positioning hole (9) is provided on the positioning piece (4), and a bolt passes through the positioning hole (9). The positioning piece (4) is detachably connected to the outer frame of the car wheel by the bolt.
8. A car mudguard according to any one of claims 3 to 7, characterized in that, The mudguard groove (7) is provided with reinforcing ribs (8), and the reinforcing ribs (8) are connected to the arc surface (6) and the bottom surface of the mudguard groove (7) respectively.
9. A car mudguard according to claim 8, characterized in that, The reinforcing rib (8) is triangular in shape.