Dust cover and vehicle

Abstract

The utility model discloses a dust cover and a vehicle, and belongs to the technical field of vehicles. The dustproof cover comprises a cover body and a reinforcing ring, the cover body is in a corrugated pipe shape, an inner space is defined by the cover body, and the reinforcing ring is arranged at at least one wave trough of one side of the inner space of the cover body; the reinforcing ring is annular, one part of the outer wall of the reinforcing ring is attached to the inner wall of the cover body, and the hardness of the reinforcing ring is larger than that of the cover body. According to the dustproof cover, the reinforcing ring is arranged at the position of at least one wave trough on one side of the internal space of the cover body, the reinforcing ring is annular, one part of the outer wall of the reinforcing ring is attached to the inner wall of the cover body, and the hardness of the reinforcing ring is larger than that of the cover body, so that the reinforcing ring has high rigidity; the reinforcing ring can support the cover body in the radial direction, so that the cover body is prevented from sinking.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a dust cover and a vehicle. Background Art

[0002] Dust covers are widely used on vehicle components such as shock absorbers, steering gears, and axles. These covers consist of a cover body that can be stretched or compressed. In related technologies, these covers are typically made of rubber. After a period of use, some areas of the cover body age, and uneven force is applied to them, making them susceptible to partial collapse. Utility Model Content

[0003] The present application provides a dustproof cover, which can solve the technical problem that the cover body is prone to local collapse.

[0004] In order to solve the above technical problems, the present application provides a dust cover for vehicles on the one hand, which includes a cover body and a reinforcement ring. The cover body is in the shape of a corrugated tube, and the cover body encloses an internal space. The cover body is provided with a reinforcement ring at at least one trough on one side of the internal space; the reinforcement ring is annular, and a part of the outer wall of the reinforcement ring is attached to the inner wall of the cover body, and the hardness of the reinforcement ring is greater than the hardness of the cover body.

[0005] In one embodiment, the cover body has a length direction along the extension direction of the cover body; the number of reinforcement rings is two, and the two reinforcement rings are arranged at intervals along the length direction. In the length direction, the ratio of the smaller value of the distance from each reinforcement ring to the two ends of the cover body to the length of the cover body is between 0.25-0.4.

[0006] In one embodiment, in a reference cross section along the extension direction of the cover body, a portion of the cross section of the inner wall where the cover body and the reinforcement ring are attached is an arc, the cross section of the reinforcement ring is a circle, and the diameter of the circle is equal to the diameter of the arc.

[0007] In one embodiment, a central angle of an arc on a cross section of an inner wall where the cover body and the reinforcement ring are in contact is greater than or equal to 90 degrees and less than or equal to 150 degrees.

[0008] In one embodiment, the cover body is provided with a first vent hole penetrating the side wall of the cover body at the location where the reinforcement ring is provided, and the reinforcement ring is provided with a second vent hole communicating with the inner space of the cover body, and the second vent hole is communicated with the first vent hole.

[0009] In one embodiment, the size of the first vent hole is equal to the size of the second vent hole near the inner wall of the cover, and the size of the second vent hole near the inner wall of the cover is smaller than the size of the second vent hole away from the inner wall of the cover.

[0010] In one embodiment, there are multiple first ventilation holes, which are distributed at intervals along the circumferential direction of the side wall of the cover body; there are multiple second ventilation holes, which are distributed at intervals along the circumferential direction of the reinforcement ring.

[0011] In one embodiment, the reinforcement ring is integrally formed on the inner wall of the cover.

[0012] In one embodiment, a buffer flange is connected to one end of the cover body, and the buffer flange protrudes toward the external space of the cover body.

[0013] Another aspect of the present application provides a vehicle, the vehicle comprising the dust cover as described above.

[0014] The dust cover provided in the present application has a reinforcement ring provided at at least one trough on one side of the internal space of the cover body. The reinforcement ring is ring-shaped, and a portion of the outer wall of the reinforcement ring is fitted to the inner wall of the cover body. The hardness of the reinforcement ring is greater than the hardness of the cover body, so that the reinforcement ring has a higher rigidity. When the cover body is locally aged and unevenly stressed, the reinforcement ring can support the cover body in the radial direction, thereby preventing the cover body from being dented. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of a dust cover provided by the present application;

[0017] Figure 2 This is a schematic diagram of the exploded structure of an embodiment of a dust cover provided by the present application;

[0018] Figure 3 is a schematic cross-sectional structural diagram of an embodiment of a dust cover provided by the present application along a viewing angle;

[0019] Figure 4 is a schematic diagram of a partial cross-sectional structure of an embodiment of a dust cover provided by the present application along a viewing angle;

[0020] Figure 5 It is a schematic cross-sectional structure diagram of an embodiment of a reinforcement ring provided in the present application along a viewing angle. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only intended to illustrate the present application and are not intended to limit the scope of the present application. Similarly, the following examples are only some examples of the present application and not all examples. All other examples obtained by those of ordinary skill in the art without creative work are intended to fall within the scope of protection of this application.

[0022] In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically defined. The terms "first", "second", and "third" in the embodiments of this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include at least one of such features. All directional indications in the embodiments of this application (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The terms "including" and "having" in the embodiments of this application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0023] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] The present application provides a dust cover for a vehicle. For example, the dust cover can be used on components such as shock absorbers, steering gears, and half shafts of a vehicle. Figure 1-Figure 3The dust cover 10 may include a cover body 11 and a reinforcement ring 12. The cover body 11 is in the shape of a bellows, and the cover body 11 encloses an internal space, and the relevant components can be accommodated in the internal space of the cover body 11. The cover body 11 is used to prevent external foreign matter from invading the interior of the relevant components. The cover body 11 is set in the shape of a bellows, so that the cover body 11 can be stretched or compressed when the relevant components move, so that the cover body 11 can move synchronously with the relevant components. The material of the cover body 11 can be plastic or rubber, so that the dust cover 10 has good compressibility. The cover body 11 is provided with a reinforcement ring 12 at at least one trough on one side of the internal space. The reinforcement ring 12 is annular, and a part of the outer wall of the reinforcement ring 12 is attached to the inner wall of the cover body 11, so that the reinforcement ring 12 can provide support for the cover body 11 in the radial direction. The hardness of the reinforcement ring 12 is greater than the hardness of the cover body 11. The material of the reinforcement ring 12 can be plastic or metal with high hardness, so that the reinforcement ring 12 has high rigidity, which can reduce the deformation of the reinforcement ring 12 when subjected to external forces, thereby providing good support for the cover body 11.

[0025] The dust cover 10 provided in the present application has a reinforcement ring 12 provided at at least one trough on one side of the internal space of the cover body 11. The reinforcement ring 12 is annular, and a portion of the outer wall of the reinforcement ring 12 is fitted to the inner wall of the cover body 11. The hardness of the reinforcement ring 12 is greater than that of the cover body 11, so that the reinforcement ring 12 has a higher rigidity. When the cover body 11 is locally aged and unevenly stressed, the reinforcement ring 12 can support the cover body 11 in the radial direction, thereby preventing the cover body 11 from being dented.

[0026] The cover body 11 has a length along its extension direction. The number of reinforcement rings 12 can be one, two, three, or more. When there is only one reinforcement ring 12, the reinforcement ring 12 can be positioned in the middle region of the lengthwise direction of the cover body 11 to prevent the cover body 11 from sag. The greater the number of reinforcement rings 12, the more support points the cover body 11 has in the radial direction, making the cover body 11 less likely to sag.

[0027] In one embodiment, if Figure 3As shown, there are two reinforcement rings 12, spaced apart along the length. This arrangement not only creates two support points along the length of the cover 11, preventing it from denting, but also ensures an optimal number of support points, without restricting the extension or compression stroke of the cover 11. Along the length, the ratio of the smaller of the distances from each reinforcement ring 12 to the two ends of the cover 11 to the length of the cover 11 is between 0.25 and 0.4. Experiments have found that if the ratio of the smaller of the distances from each reinforcement ring 12 to the two ends of the cover body 11 to the length of the cover body 11 is less than 0.25, the distances from each reinforcement ring 12 to the ends of the cover body 11 are relatively close, resulting in a large area of ​​the middle region of the cover body 11 lacking support points, and the middle region of the cover body 11 is prone to depression. If the ratio of the smaller of the distances from each reinforcement ring 12 to the two ends of the cover body 11 to the length of the cover body 11 is greater than 0.4, the distances from each reinforcement ring 12 to the ends of the cover body 11 are relatively far, and the two reinforcement rings 12 are concentrated in the middle region of the cover body 11, resulting in a large area of ​​the end regions of the cover body 11 lacking support points, and the end regions of the cover body 11 are prone to depression. For example, the ratio of the smaller of the distances from each reinforcement ring 12 to the two ends of the cover body 11 to the length of the cover body 11 can be 0.25, 0.28, 0.3, 0.33, 0.35, 0.38, or 0.4, which are not specifically limited here.

[0028] In the reference cross-section along the extension direction of the cover body 11, the cross-sectional shape of the reinforcement ring 12 can be a polygon or an ellipse, etc., and the cross-sectional shape of the inner wall of the cover body 11 where the reinforcement ring 12 is set matches the cross-sectional shape of the reinforcement ring 12, so that a part of the outer wall of the reinforcement ring 12 can fit against the inner wall of the cover body 11.

[0029] See also Figure 4 In one embodiment, within a reference cross-section along the extension direction of the cover body 11, a portion of the cross-section of the inner wall of the cover body 11 where it meets the reinforcement ring 12 is an arc. The cross-section of the reinforcement ring 12 is circular, and the diameter of the circle is equal to the diameter of the arc. The circular cross-section of the reinforcement ring 12 facilitates the processing of the reinforcement ring 12. The equal diameter of the circle and the diameter of the arc ensures a larger contact area between the outer wall of the reinforcement ring 12 and the inner wall of the cover body 11. The reinforcement ring 12 can provide good support for the cover body 11 in the radial direction, thereby preventing the cover body 11 from denting.

[0030] In one embodiment, if Figure 4As shown, the central angle of the arc on the cross section of the inner wall where the cover body 11 and the reinforcement ring 12 meet is greater than or equal to 90 degrees and less than or equal to 150 degrees. If the central angle is less than 90 degrees, the central angle is small, the contact area between the outer wall of the reinforcement ring 12 and the inner wall of the cover body 11 is small, and the support force provided by the reinforcement ring 12 to the cover body 11 in the radial direction is small, which may cause the cover body 11 to sag; if the central angle is greater than 150 degrees, the central angle is large, the contact area between the outer wall of the reinforcement ring 12 and the inner wall of the cover body 11 is large, and a large part of the trough of the cover body 11 is in contact with the reinforcement ring 12, which may limit the stretching or compression stroke of the cover body 11. For example, the central angle of the arc on the cross section of the inner wall where the cover body 11 and the reinforcement ring 12 meet can be 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, or 150 degrees, which is not specifically limited here.

[0031] In the related art, when the cover 11 is compressed, the air in the internal space of the cover 11 can only be discharged from the end of the cover 11, resulting in insufficient gas discharge and prone to whistling sounds. Figure 4 In one embodiment, the cover 11 is provided with a first vent 111 extending through the sidewall of the cover 11 at the location of the reinforcement ring 12. The reinforcement ring 12 is provided with a second vent 121 communicating with the interior of the cover 11. The second vent 121 is connected to the first vent 111. The interconnected second vent 121 and first vent 111 allow the interior of the cover 11 to communicate with the outside. When the cover 11 is compressed, air in the interior of the cover 11 can be promptly expelled, preventing unusual noises from the compression of the cover 11 and improving the user experience.

[0032] In one embodiment, if Figure 4 As shown, the size of the first vent 111 is equal to the size of the second vent 121 at one end near the inner wall of the cover body 11, and the size of the second vent 121 at one end near the inner wall of the cover body 11 is smaller than the size of the second vent 121 at the other end away from the inner wall of the cover body 11. This configuration makes the second vent 121 trumpet-shaped. On the one hand, the opening of the second vent 121 at the end near the inner space of the cover body 11 is larger, which can facilitate the timely discharge of air from the inner space of the cover body 11, thereby preventing abnormal noise when the cover body 11 is compressed. On the other hand, the openings of the first vent 111 and the second vent 121 at the ends near the outer space of the cover body 11 are smaller, which can prevent foreign matter from the outer space from entering the inner space of the cover body 11 through the first vent 111 and the second vent 121, thereby improving the dustproof effect of the dustproof cover.

[0033] The number of the first ventilation hole 111 and the second ventilation hole 121 can be one. Figure 5In one embodiment, there are multiple first vent holes 111, which are spaced apart circumferentially along the sidewall of the housing 11. Accordingly, there are multiple second vent holes 121, which are spaced apart circumferentially along the reinforcement ring 12. Providing multiple first vent holes 111 and second vent holes 121, distributed in all directions along the circumferential sidewall of the housing 11, allows for faster exhaust of air from the interior of the housing 11, helping to prevent abnormal noise when the housing 11 is compressed. The number of first vent holes 111 and second vent holes 121 can be two, three, four, or more.

[0034] In one embodiment, the reinforcement ring 12 is integrally formed on the inner wall of the housing 11. For example, a vulcanization process can be used to integrally form the reinforcement ring 12 on the inner wall of the housing 11. When the reinforcement ring 12 is integrally formed on the inner wall of the housing 11, the outer wall of the reinforcement ring 12 can be bonded to the inner wall of the housing 11, making it difficult for the reinforcement ring 12 to fall off the housing.

[0035] See also Figure 3 In one embodiment, a buffer flange 13 is connected to one end of the cover body 11. The buffer flange 13 protrudes toward the exterior of the cover body 11. This arrangement allows the cover body 11 to cushion the impact of compression on the cover body 11 and the mating component, thereby improving the stress on the cover body 11 and enhancing its durability. The buffer flange 13 can be made of the same material as the cover body 11 and can be integrally formed with the cover body 11.

[0036] The present application provides a vehicle including a dust cover 10 as described above. For example, the dust cover can be installed on components such as the vehicle's shock absorber, steering gear, and axle shaft. The dust cover 10 is used to prevent foreign matter from entering the interior of the relevant components, thereby protecting the working components from damage and ensuring that the relevant components can maintain optimal operating conditions. The vehicle can be powered by a fuel engine or an electric motor. Other vehicle structures are not described in detail here.

[0037] The above descriptions are only some embodiments of the present application and do not limit the scope of protection of the present application. Any equivalent device or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. A dust cover, characterized in that: The dust cover is used for a vehicle, and includes a cover body and a reinforcement ring. The cover body is in a bellows shape and encloses an internal space. The cover body is provided with the reinforcement ring at at least one trough on one side of the internal space. The reinforcement ring is annular, a portion of the outer wall of the reinforcement ring is in contact with the inner wall of the cover, and the hardness of the reinforcement ring is greater than the hardness of the cover.

2. The dust cover according to claim 1, characterized in that: The cover body has a length direction along the extension direction of the cover body; There are two reinforcement rings, which are spaced apart along the length direction. In the length direction, the ratio of the smaller value of the distance from each reinforcement ring to the two ends of the cover body to the length of the cover body is between 0.25-0.

4.

3. The dust cover according to claim 1, wherein: In a reference cross section along the extension direction of the cover body, a portion of the cross section of the inner wall where the cover body and the reinforcement ring are attached is an arc, the cross section of the reinforcement ring is a circle, and the diameter of the circle is equal to the diameter of the arc.

4. The dust cover according to claim 3, characterized in that: The central angle of the arc on the cross section of the inner wall where the cover body and the reinforcement ring are in contact is greater than or equal to 90 degrees and less than or equal to 150 degrees.

5. The dust cover according to claim 1, wherein: The cover body is provided with a first vent hole penetrating through the side wall of the cover body at the location where the reinforcement ring is provided, and the reinforcement ring is provided with a second vent hole communicating with the inner space of the cover body, and the second vent hole is communicated with the first vent hole.

6. The dust cover according to claim 5, characterized in that: The size of the first vent hole is equal to the size of the second vent hole near one end of the cover inner wall, and the size of the second vent hole near one end of the cover inner wall is smaller than the size of the second vent hole away from the other end of the cover inner wall.

7. The dust cover according to claim 5, characterized in that: There are a plurality of first vent holes, and the plurality of first vent holes are distributed at intervals along the circumferential direction of the side wall of the cover body; There are a plurality of second ventilation holes, and the plurality of second ventilation holes are distributed at intervals along the circumferential direction of the reinforcement ring.

8. The dust cover according to claim 1, wherein: The reinforcement ring is integrally formed on the inner wall of the cover body.

9. The dust cover according to claim 1, wherein: One end of the cover body is connected to a buffer flange, and the buffer flange is protruded toward one side of the external space of the cover body.

10. A vehicle, characterized in that: The utility model comprises the dust cover according to any one of claims 1 to 9.

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