A type of car wheel hub decorative cover

Abstract

This utility model provides a decorative cover for automobile wheel hubs, belonging to the technical field of automobile wheel structure. The decorative cover features at least three buckles arranged circumferentially on the inner side of the cover body. A retaining ring with a notch and radial outward elasticity is press-fitted into the inner ring of the buckles. A pressure-applying part on the engagement surface eliminates the gap between the engagement surface and the wheel hub groove. This design solves the problem in existing wheel hub decorative covers where high temperatures cause material softening, internal stress attenuation, and ultimately buckle failure. The decorative cover includes a cover body, buckles, a retaining ring, and a pressure-applying part arranged on the cover body. There are at least three buckles arranged circumferentially on the inner side of the cover body. The retaining ring has a notch and radial outward elasticity, and is press-fitted into the inner ring of the buckles. The engagement surface between the buckles and the groove is the engagement surface, and the pressure-applying part is located on the engagement surface, eliminating the gap between the engagement surface and the groove.

Description

Technical Field

[0001] This utility model belongs to the field of automotive wheel structure technology, and in particular relates to an automotive wheel hub decorative cover. Background Technology

[0002] Car wheel covers are decorative and functional components installed on wheel rims, primarily used to enhance the vehicle's aesthetics while also providing practical functions such as dust and water protection and preventing scratches. They can be categorized into center covers (covering the center of the rim and displaying the car logo) and full rim covers (covering the entire steel rim, enhancing its visual appeal). The main body is made of ABS engineering plastic. The core fixing clips are generally made of high-strength, high-elasticity nylon (PA66) material to ensure a secure and stable fit during driving.

[0003] In actual use, factors such as ambient temperature, local heat sources (engine, exhaust manifold, braking system, etc.), and friction caused by vibration between the contact surfaces of parts can cause plastic materials to soften due to increased temperature, resulting in weakened clamping force and easy loosening or permanent deformation. If the high temperature continues, the internal stress of the wheel hub cover will decay more quickly, causing the retaining force of the clip to decrease rapidly over time and eventually fail. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a car wheel hub decorative cover to solve the problem that the material of the wheel hub decorative cover softens and the internal stress decreases due to high temperature, which eventually leads to the failure of the buckle.

[0005] To achieve the above and other related objectives, this utility model provides an automotive wheel hub decorative cover, comprising:

[0006] Cover;

[0007] A buckle is arranged on the cover and engages with a groove in the car wheel hub;

[0008] It also includes a buckle and a pressure part;

[0009] There are at least three buckles arranged in a circular pattern on the inner side of the cover;

[0010] The buckle has a notch and has an outward elastic force along its radial direction, and the buckle is press-fitted into the inner ring of the plurality of buckles;

[0011] The mating surfaces of the buckle and the slot are engagement surfaces, and the pressure part is disposed on the engagement surface to eliminate the gap when the engagement surface and the slot are engaged.

[0012] Optionally, the buckle is The buckle has a vertical portion whose lower part is fixed to the cover; the buckle has a horizontal portion whose inner side is fixed to the vertical portion whose outer side faces the outer side of the cover; the buckle has a horizontal portion that is wider inside than outside, and the horizontal portion of the buckle engages in the slot.

[0013] Optionally, the pressure part is disposed on the upper surface of the transverse portion of the buckle. When the buckle and the slot are engaged, the pressure part abuts against the inner surface of the slot and applies a force toward the lower surface of the transverse portion of the buckle to the upper surface of the transverse portion of the buckle.

[0014] Optionally, the pressurization section includes:

[0015] A pressure groove is formed on the upper surface of the transverse portion of the buckle;

[0016] A sliding hole is formed within the pressure groove;

[0017] The compression spring is fixed at its bottom end inside the sliding hole;

[0018] The pressure block is slidably installed in the sliding hole and connected to the top of the pressure spring; when the buckle and the slot are engaged, the inner surfaces of the pressure block and the slot abut against each other.

[0019] Optionally, the sliding hole is a countersunk hole, a stabilizing post is fixedly connected to the bottom of the countersunk hole, the pressure spring is fitted on the stabilizing post, and the pressure block is slidably installed in the countersunk portion of the countersunk hole.

[0020] Optionally, there are multiple sliding holes, and each sliding hole is equipped with a pressure spring and a pressure block.

[0021] Optionally, the pressurizing part further includes a pressurizing plate; the pressurizing plate is fixedly connected to the top of each of the pressurizing blocks, and when the buckle and the slot are engaged, the pressurizing blocks abut against each other through the inner surfaces of the pressurizing plate and the slot.

[0022] Optionally, the inner side of the buckle is provided with an arc-shaped groove, and the arc-shaped grooves on the inner side of multiple buckles are located on the same circumference, and the buckle ring is press-fitted into multiple arc-shaped grooves.

[0023] As described above, the automotive wheel hub decorative cover of this utility model has at least the following beneficial effects:

[0024] When the material of the wheel hub decorative cover softens and the internal stress decreases due to high temperature, this automotive wheel hub decorative cover uses at least three buckles arranged in a circle on the inside of the cover body. The buckle with a notch and a buckle with a radial outward elastic force is pressed into the inner ring of multiple buckles. The buckle is kept open by the radial outward elastic force of the buckle, and will not shrink inward due to the softening of the material and the decrease of internal stress, causing the buckle and the groove to separate.

[0025] This car wheel hub decorative cover is designed to eliminate the gap between the mating surface and the wheel hub groove by setting a pressure part on the mating surface. When the material softens and the internal stress decreases, and a gap appears between the buckle and the groove, the pressure part can eliminate this gap in time to prevent the buckle from loosening.

[0026] Ultimately, the above design of this automotive wheel hub decorative cover solves the problem in the prior art where high temperatures cause the material of the wheel hub decorative cover to soften and become soft, leading to the attenuation of internal stress and ultimately the failure of the clips. Attached Figure Description

[0027] Figure 1 The diagram shown is a schematic diagram of a car wheel hub decorative cover according to this utility model.

[0028] Figure 2 The diagram shown is an exploded view of the buckle of this utility model.

[0029] Component designation explanation

[0030] 1. Cover body, 2. Buckle, 3. Notch, 31. Pressurizing part, 4. Pressurizing groove, 41. Sliding hole, 42. Pressurizing spring, 43. Pressurizing block, 44. Stabilizing column, 45. Pressurizing plate, 46. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0032] Please see Figures 1 to 2It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0033] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0034] Please see Figure 1 This utility model provides a car wheel hub decorative cover, which, like existing wheel hub decorative covers, also includes:

[0035] like Figure 1 The cover 1 shown is used to cover the center of the wheel hub.

[0036] like Figure 1 The buckle 2 shown is arranged on the cover 1 and engages in the groove of the car wheel hub to ensure that the cover 1 is firmly installed on the wheel hub and does not fall off.

[0037] The difference between this car wheel hub cover and existing technology is that:

[0038] like Figure 1 and Figure 2 As shown, it also includes a buckle 3 and a pressure part 4; there are at least three buckles 2 arranged circumferentially on the inner side of the cover body 1; the buckle 3 is provided with a notch 31 and has an outward elastic force along its radial direction, and the buckle 3 is press-fitted into the inner ring of the plurality of buckles 2.

[0039] like Figure 1 and Figure 2 As shown, the mating surfaces of the buckle 2 and the slot are engagement surfaces, and the pressure part 4 is disposed on the engagement surface. The pressure part 4 eliminates the gap when the engagement surface and the slot are engaged.

[0040] Under the influence of factors such as increased ambient temperature, local heat sources (engine, exhaust manifold, braking system, etc.), and friction generated by vibration between component contact surfaces, the temperature of the wheel hub decorative cover rises, causing its plastic material to soften and its internal stress to decrease. This leads to a weakening of the clamping force of the clip 2, making it prone to loosening or permanent deformation. If the high temperature continues, the internal stress of the wheel hub decorative cover will decrease even faster, causing the retaining force of the clip 2 to drop rapidly over time and eventually fail. In this case, the wheel hub decorative cover is designed with at least three clips 2 arranged circumferentially inside the cover body 1. The clip 3, which has a notch 31 and a retaining ring 3 with its own radial outward elastic force, is pressed into the inner ring of the multiple clips 2. The retaining ring 3's radial outward elastic force keeps the multiple clips 2 open and prevents them from shrinking inward due to material softening and internal stress decrease, thus preventing the clips 2 from separating from the slot. This car wheel hub decorative cover is designed to eliminate the gap between the engagement surface and the wheel hub groove by setting a pressure part 4 on the engagement surface. When the material softens and the internal stress decreases, and a gap appears between the buckle 2 and the groove, the pressure part 4 can eliminate this gap in time to prevent the buckle 2 from loosening.

[0041] Ultimately, the above design of this automotive wheel hub decorative cover solves the problem in the prior art where the material of the wheel hub decorative cover softens and the internal stress decreases due to high temperature, ultimately leading to the failure of the clip 2.

[0042] It should be noted that the reason why there are at least three clips 2 is to ensure the stability of the buckle 3 pressed into the inner ring of multiple clips 2. If there are only two clips 2, after the buckle 3 is pressed in, there are only two support points. The two points can only determine a straight line, and the buckle 3 is a flat part, so it is very easy to loosen.

[0043] In another implementation, please refer to Figure 1 and Figure 2 The buckle 2 is The buckle 2 has a vertical portion whose lower part is fixed to the cover 1; the inner side of the horizontal portion of the buckle 2 is fixed to the upper part of the vertical portion of the buckle 2, and the outer side faces the outer side of the cover 1; the horizontal portion of the buckle 2 is wider inside and narrower outside, and the horizontal portion of the buckle 2 engages in the slot; this embodiment provides a specific structural form of the buckle 2, which is simple and easy to manufacture; the horizontal portion of the buckle 2 is wider inside and narrower outside, which also facilitates its engagement in the slot.

[0044] In another implementation, please refer to Figure 2The pressure part 4 is disposed on the upper surface of the transverse portion of the buckle 2. When the buckle 2 and the slot are engaged, the pressure part 4 abuts against the inner surface of the slot and applies a force toward the lower surface of the transverse portion of the buckle 2 to the upper surface of the transverse portion of the buckle 2. After a gap appears between the transverse portion of the buckle 2 and the slot, the pressure part 4 simultaneously eliminates the gap between the two surfaces of the transverse portion of the buckle 2 and the slot. It should be noted that in this embodiment, the wheel hub decorative cover faces upward toward the wheel hub side, and the pressure part 4 can also be disposed on the lower surface of the transverse portion of the buckle 2.

[0045] In another embodiment, the pressurizing part 4 includes, as shown below: Figure 2 The pressure groove 41 shown is formed on the upper surface of the transverse portion of the buckle 2; as shown Figure 2 The sliding hole 42 shown is formed within the pressure groove 41; as Figure 2 The pressure spring 43 shown is fixed at its bottom end within the sliding hole 42; as shown Figure 2 The pressure block 44 shown is slidably installed in the sliding hole 42 and connected to the top of the pressure spring 43; when the buckle 2 and the slot are engaged, the pressure block 44 and the inner surface of the slot abut against each other; this embodiment provides a specific structural form of the pressure part 4, and the following will provide further supplementary description of the structure.

[0046] In another implementation, please refer to Figure 2 The sliding hole 42 is a countersunk hole, and a stabilizing column 45 is fixedly connected to the bottom of the countersunk hole. The pressure spring 43 is fitted on the stabilizing column 45, and the pressure block 44 is slidably installed on the countersunk part of the countersunk hole. The design of the stabilizing column 45 and the countersunk hole ensures the stable displacement of the pressure spring 43 when it is compressed.

[0047] In another implementation, please refer to Figure 2 There are multiple sliding holes 42, and each sliding hole 42 is equipped with a pressure spring 43 and a pressure block 44, which further optimizes the function of the pressure part 4 in eliminating the gap when the engagement surface and the slot are engaged.

[0048] In another implementation, please refer to Figure 2The pressure part 4 also includes a pressure plate 46; the pressure plate 46 is fixedly connected to the top of each pressure block 44. When the buckle 2 and the slot are engaged, the pressure block 44 abuts against the inner surface of the slot through the pressure plate 46. Based on multiple pressure blocks 44, through the design of a complete pressure plate 46, when the buckle 2 and the slot are engaged, the pressure part 4 and the inner surface of the slot can fully abut against each other. The pressure part 4 applies a force to the upper surface of the horizontal part of the buckle 2 towards the lower surface of the horizontal part of the buckle 2, which is also more uniform. That is, after a gap appears between the horizontal part of the buckle 2 and the slot, the pressure part 4 can more fully eliminate the gap between the two surfaces of the horizontal part of the buckle 2 and the slot.

[0049] In other implementations, such as Figure 1 As shown, the inner side of the buckle 2 is provided with an arc-shaped groove, and the arc-shaped grooves on the inner side of multiple buckles 2 are located on the same circumference. The buckle ring 3 is pressed into multiple arc-shaped grooves. The design of the arc-shaped groove ensures the firmness of the buckle ring 3.

[0050] In summary, this utility model utilizes a structural design where at least three buckles 2 are arranged circumferentially inside the cover 1, with a notch 31 and a retaining ring 3 having an outward elastic force along its own radial direction, pressed into the inner ring of the multiple buckles 2. The outward elastic force of the retaining ring 3 keeps the multiple buckles 2 open, preventing them from shrinking due to material softening or internal stress reduction, thus preventing them from detaching from the groove. Furthermore, the design of the pressure part 4 on the engagement surface eliminates gaps between the engagement surface and the wheel hub groove. When gaps appear between the buckles 2 and the groove due to material softening or internal stress reduction, the pressure part 4 can promptly eliminate these gaps, preventing the buckles 2 from loosening. Ultimately, this solves the problem in the prior art where high temperatures cause the material of the wheel hub decorative cover to soften and internal stress to reduce, ultimately leading to buckle 2 failure. Therefore, this utility model effectively overcomes the shortcomings of the prior art and has high industrial application value.

[0051] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A decorative cover for automotive wheel hubs, comprising: Cover; A buckle is arranged on the cover and engages with a groove in the car wheel hub; Its features are: It also includes a buckle and a pressure part; There are at least three buckles arranged in a circular pattern on the inner side of the cover; The buckle has a notch and has an outward elastic force along its radial direction, and the buckle is press-fitted into the inner ring of the plurality of buckles; The mating surfaces of the buckle and the slot are engagement surfaces, and the pressure part is disposed on the engagement surface to eliminate the gap when the engagement surface and the slot are engaged.

2. The automotive wheel hub decorative cover according to claim 1, characterized in that: The buckle is a profile; The lower part of the vertical portion of the buckle is fixed to the cover; The inner side of the horizontal portion of the buckle is fixed to the upper part of the vertical portion of the buckle, and the outer side faces the outer side of the cover. The horizontal portion of the buckle is wider on the inside and narrower on the outside, and the horizontal portion of the buckle engages within the slot.

3. The automotive wheel hub decorative cover according to claim 2, characterized in that: The pressure part is disposed on the upper surface of the transverse portion of the buckle. When the buckle and the slot are engaged, the pressure part abuts against the inner surface of the slot and applies a force toward the lower surface of the transverse portion of the buckle to the upper surface of the transverse portion of the buckle.

4. The automotive wheel hub decorative cover according to claim 3, characterized in that: The pressurizing unit includes: A pressure groove is formed on the upper surface of the transverse portion of the buckle; A sliding hole is formed within the pressure groove; The compression spring is fixed at its bottom end inside the sliding hole; The pressure block is slidably installed in the sliding hole and connected to the top of the pressure spring; when the buckle and the slot are engaged, the inner surfaces of the pressure block and the slot abut against each other.

5. A car wheel hub decorative cover according to claim 4, characterized in that: The sliding hole is a countersunk hole, and a stabilizing post is fixed to the bottom of the countersunk hole. The pressure spring is fitted onto the stabilizing post, and the pressure block is slidably installed on the countersunk part of the countersunk hole.

6. The automotive wheel hub decorative cover according to claim 4, characterized in that: There are multiple sliding holes, and each sliding hole is equipped with a pressure spring and a pressure block.

7. A car wheel hub decorative cover according to claim 6, characterized in that: The pressurizing part also includes a pressurizing plate; the pressurizing plate is fixedly connected to the top of each of the pressurizing blocks, and when the buckle and the slot are engaged, the pressurizing blocks abut against each other through the inner surfaces of the pressurizing plate and the slot.

8. A decorative cover for automotive wheel hubs according to claim 1, characterized in that: The inner side of the buckle is provided with an arc-shaped groove, and the arc-shaped grooves on the inner side of multiple buckles are located on the same circumference. The buckle ring is press-fitted into multiple arc-shaped grooves.

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