Automobile dust cover with good resilience

Abstract

The utility model belongs to the technical field of automobile parts, disclose a kind of automobile dust cover of good resilience, including main part, the main part is the cylindrical structure made of elastic rubber material, the both ends of main part are provided with mounting portion, wave section is set up on the main part, the wave section is composed of wave crest and wave trough of alternate arrangement, the wall thickness of wave crest and wave trough is greater than the wall thickness of other areas in the wave section, wave crest is provided with stiffener structure, the utility model is set by the stiffener of wave crest, the strength and elasticity of dust cover in frequent bending deformation key position are strengthened, the local wrinkle or collapse problem caused by stress concentration of traditional dust cover is solved, the sealing property and service life of automobile dust cover are improved, furthermore, by the setting of polyurethane elastic coating layer and wave distance, the elasticity of main body is enhanced, so that dust cover can be more long-lastingly elastic, further improve the service life of dust cover.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and more specifically, to a car dust cover with good resilience. Background Technology

[0002] A car dust cover is a common rubber component used for vehicle protection. It is used in the chassis, steering, and transmission systems. The car dust cover mainly uses its own expansion and contraction to isolate external dust and other pollutants while ensuring the normal rotation and swing of internal connecting parts, thereby extending the service life of related components.

[0003] In practical use, we have found that car dust covers need to undergo frequent and large-amplitude compression and expansion movements along with the components they protect. During long-term use, existing dust covers are prone to material fatigue at the crests of their corrugations, leading to decreased resilience, local wrinkles or collapses, affecting the sealing effect, and consequently limiting the service life of the dust cover itself.

[0004] In view of this, we propose a car dust cover with good resilience. Utility Model Content

[0005] 1. Technical problems to be solved The purpose of this invention is to provide a car dust cover with good resilience to solve the problems mentioned in the background art.

[0006] 2. Technical Solution A car dust cover with good resilience includes a main body, which is a cylindrical structure made of elastic rubber material. Both ends of the main body are provided with mounting parts. The main body is provided with corrugated sections, which are composed of alternating peaks and troughs. The wall thickness of the peaks and troughs is greater than the wall thickness of other areas in the corrugated sections. The peaks are provided with reinforcing ribs.

[0007] Preferably, an annular reinforcing rib is fixedly connected to the inner wall surface of the crest. The annular reinforcing rib is made of elastic rubber material, and the cross-section of the annular reinforcing rib is an arc with a C-shaped arrangement.

[0008] Preferably, a coating layer is provided on the outer wall surface of the main body, and the coating layer is a polyurethane elastic coating.

[0009] Preferably, the spacing between the crests of the corrugated section in the middle of the main body is smaller than the spacing between the crests of the corrugated sections at both ends of the main body.

[0010] Preferably, an outer support portion is adhered to the outer wall surface of the trough between two adjacent wave crests at both ends of the main body.

[0011] Preferably, the outer support portion includes a hollow support frame bonded to the main body and a plurality of springs spaced at equal angles within the support frame.

[0012] Preferably, the mounting portion has a threaded section for connecting to the main body.

[0013] 3. Beneficial effects Compared with existing technologies, the advantages of this utility model are: 1. This utility model enhances the strength and elasticity of key parts of the dust cover when it is frequently bent and deformed by setting reinforcing ribs at the crests. It solves the problem of local wrinkles or collapse caused by concentrated stress in traditional dust covers, and improves the sealing performance and service life of automotive dust covers.

[0014] 2. This utility model enhances the elasticity of the main body by setting a polyurethane elastic coating layer and a corrugated spacing, and improves the flexibility of the middle part of the main body, which is the most easily bent part, so that the dust cover can maintain its elasticity for a longer time and further improve the service life of the dust cover. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the main body of this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the support frame of this utility model; Figure 5 This is a cross-sectional view of the main body of this utility model.

[0016] The following are the labels in the diagram: 1. Main body, 11. Mounting part, 111. Threaded section, 2. Corrugated section, 21. Crest, 22. Trough, 3. Annular reinforcing rib, 4. Coating layer, 5. Outer support part, 51. Support frame, 52. Spring. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0020] Please see Figures 1-5 This utility model provides a technical solution: A car dust cover with good resilience includes a main body 1, which is made of elastic rubber material and has a cylindrical structure. Both ends of the main body 1 are provided with mounting parts 11. Corrugated sections 2 are formed on the main body 1. The corrugated sections 2 are composed of alternating peaks 21 and troughs 22. The wall thickness of the peaks 21 and troughs 22 is greater than the wall thickness of other areas in the corrugated sections 2. Reinforcing ribs are provided at the peaks 21. During the manufacturing process, the wall thickness of the peaks 21 and troughs 22 needs to be made greater than that of other areas on the main body 1 by using blow molding or injection molding. The peaks 21 and troughs 22, which are most prone to bending deformation, are locally thickened to enhance the strength and deformation resistance of these parts, thereby improving the overall resilience of the dust cover and preventing wrinkles or collapse during long-term use.

[0021] Among them, annular reinforcing ribs 3 are fixedly connected to the inner wall surface of the crest 21. The annular reinforcing ribs 3 are made of elastic rubber material, and the cross section of the annular reinforcing ribs 3 is an arc with a C-shaped arrangement. This arrangement enables the annular reinforcing ribs 3 to provide support for the crest 21 and distribute the force, thereby enhancing the crest 21's resistance to compression and bending and improving the elasticity of the corrugated section 2.

[0022] In addition, a coating layer 4 is provided on the outer wall surface of the main body 1. The coating layer 4 is a polyurethane elastic coating. The polyurethane elastic coating can not only protect the main body 1 and prevent it from being scratched and worn, but also improve the elasticity of the main body 1. In specific implementation, the coating layer 4 can be applied to the outer surface of the main body 1 by spraying or dipping.

[0023] It should be noted that the middle part of the dust cover is the part that bends the most during use. The corrugations should be set more densely here to make the area more elastic, so that the entire dust cover is subjected to more even force and the rebound effect of the entire body 1 is improved. When setting, the spacing of the wave crests 21 of the corrugated section 2 in the middle of the body 1 is smaller than the spacing of the wave crests 21 of the corrugated section 2 at both ends of the body 1.

[0024] Secondly, an outer support part 5 is bonded to the outer wall surface of the trough 22 between two adjacent peaks 21 at both ends of the main body 1. The outer support part 5 includes a hollow support frame 51 bonded to the main body 1 and multiple springs 52 arranged at equal angles within the support frame 51. In specific implementation, the support frame 51 can be a plastic frame. The inside of the support frame 51 is hollow. Multiple slots for positioning the springs 52 can be provided inside the support frame 51 to prevent the springs 52 from shifting or falling over within the support frame 51. In use, the support frame 51 provides positioning, and the springs 52 resist the tendency of the two peaks 21 at the very end of the main body 1 to approach each other, thereby enhancing the anti-collapse ability and recovery ability of the end of the main body 1 and improving the elasticity of the entire main body 1.

[0025] Furthermore, the mounting section 11 is provided with a threaded section 111 for connecting the main body 1. The threaded section 111 ensures that the dust cover can still be firmly connected to the connecting parts under complex working conditions, thereby improving the connection stability and sealing effect.

[0026] Working principle: When installing the car dust cover, the main body 1 is fixed to the car's steering knuckle or drive shaft and other transmission components through the mounting parts 11 at both ends. When the component is working, the corrugated section 2 in the middle will undergo compression or stretching deformation as the component expands, contracts and swings. During this process, the locally thickened crests 21 and troughs 22, the annular reinforcing ribs 3 on the inner side of the crests 21 and the denser corrugations in the middle section work together to enhance the strength of the main body 1 and distribute the force, ensuring that the deformation of the main body 1 is uniform. The coated polyurethane coating can also improve the elasticity of the main body 1. In addition, the springs 52 of the outer support parts 5 at the end troughs 22 of the main body 1 can provide support and prevent the ends from collapsing. The cooperation of multiple components improves the rebound effect of the dust cover.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A car dust cover with good resilience, characterized in that: Includes a main body (1), which is a cylindrical structure made of elastic rubber material. Both ends of the main body (1) are provided with mounting parts (11). The main body (1) has a corrugated section (2). The corrugated section (2) is composed of alternating peaks (21) and valleys (22). The wall thickness of the peaks (21) and valleys (22) is greater than the wall thickness of other areas in the corrugated section (2). A reinforcing rib structure is provided at the peaks (21).

2. The car dust cover with good resilience as described in claim 1, characterized in that: The inner wall of the crest (21) is fixedly connected with an annular reinforcing rib (3), which is made of elastic rubber material and has a cross-section that is an arc with a C-shaped arrangement.

3. The car dust cover with good resilience as described in claim 1, characterized in that: The outer wall surface of the main body (1) is provided with a coating layer (4), which is a polyurethane elastic coating.

4. The car dust cover with good resilience as described in claim 1, characterized in that: The spacing between the crests (21) of the corrugated segment (2) in the middle of the main body (1) is smaller than the spacing between the crests (21) of the corrugated segment (2) at both ends of the main body (1).

5. The car dust cover with good resilience as described in claim 1, characterized in that: An outer support part (5) is bonded to the outer wall surface of the trough (22) between two adjacent peaks (21) at both ends of the main body (1).

6. The car dust cover with good resilience as described in claim 5, characterized in that: The outer support part (5) includes a hollow support frame (51) bonded to the main body (1) and a plurality of springs (52) spaced at equal angles within the support frame (51).

7. The car dust cover with good resilience as described in claim 1, characterized in that: The mounting part (11) is provided with a threaded section (111) for connecting the main body (1).

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