A hub ornament center cover and a clamping leg structure thereof

Abstract

The utility model discloses a kind of hub decoration center cover and its card foot structure, including hub decoration center cover body, several card foot bodies are integrally formed on hub decoration center cover body, several card foot bodies are annular array, card foot body includes arc plate, arc-shaped block integrally formed with the outer contour of arc plate, arc-shaped block is used to be clamped into the recess of hub body, arc-shaped block is spaced distribution on arc plate, interval is equipped between arc plate and hub decoration center cover body, card mouth is also equipped on card foot body, annular snap spring is clamped in card mouth, and snap spring is used to support arc-shaped block. The structure is integrally formed by card foot body and center cover body, and arc-shaped block is elastically supported using snap spring, which significantly improves the clamping stability, reduces the possibility of falling off during later use process;At the same time, the interval design between arc plate and body gives card foot elastic deformation space, effectively buffers stress during pressing installation process, avoids the fracture caused by excessive rigidity.

Description

Technical Field

[0001] This utility model relates to the field of automotive decorative parts technology, and in particular to a wheel hub decorative center cover and its clamping foot structure. Background Technology

[0002] A wheel hub center cover is a decorative cover installed in the center of a car wheel hub to conceal the wheel hub bolts or axle structure, enhancing the overall appearance and aesthetics of the vehicle. It is usually made of plastic and uses a circumferentially distributed elastic clip structure to cooperate with the grooves on the wheel hub body to achieve quick assembly and disassembly without screws.

[0003] In the prior art, a single locking foot with a similar structure usually has only one locking point. This locking point has line contact or small area surface contact with the wheel hub mating surface. Under manufacturing tolerance, assembly deviation or long-term vibration conditions, it is easy for local suspension or incomplete fit to occur, resulting in insufficient locking force. This poses a risk of the decorative cover loosening or even falling off, affecting the safety of use and the stability of appearance. Utility Model Content

[0004] The purpose of this utility model is to provide a wheel hub decorative center cover and its locking foot structure to solve the problems of unreliable single locking contact and easy loosening mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wheel hub decorative center cover and its locking foot structure, comprising a wheel hub decorative center cover body, on which a plurality of locking foot bodies are integrally formed, the plurality of locking foot bodies being arranged in a ring array, each locking foot body comprising an arc plate and an arc-shaped block integrally formed with the outer contour of the arc plate, the arc-shaped block being used to engage in a groove in the wheel hub body, the arc-shaped blocks being spaced apart on the arc plate, a gap being provided between the arc plate and the wheel hub decorative center cover body, the locking foot body also having a locking slot, in which a ring-shaped retaining spring is engaged, the retaining spring being used to support the arc-shaped block.

[0006] Based on the preferred embodiment of this technical solution, an opening is provided on the arc plate at every predetermined number of arc-shaped blocks.

[0007] Based on the preferred embodiment of this technical solution, each arc plate is provided with six arc-shaped blocks, the opening is located in the middle of the arc plate, and three arc-shaped blocks are distributed on its left and right sides respectively.

[0008] In a preferred embodiment of this technical solution, a stop block is provided on the arc plate to prevent the snap ring from falling out of the snap hole.

[0009] In the preferred embodiment of this technical solution, the opening structure is closed.

[0010] Based on the preferred embodiment of this technical solution, a notch can be made on the arc-shaped block, and the notch is used to reduce the force pressed onto the wheel hub body.

[0011] In a preferred embodiment of this technical solution, among the three arc-shaped blocks on the left side of the opening, the arc-shaped blocks adjacent to the middle arc-shaped block on both sides are provided with notches; and among the three arc-shaped blocks on the right side of the opening, the arc-shaped blocks adjacent to the middle arc-shaped block on both sides are also provided with notches.

[0012] In a preferred embodiment of this technical solution, the arc-shaped block is provided with an S-shaped guide slope, which is used to reduce the pressing force of the arc-shaped block entering the groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting multiple arc-shaped blocks on a single locking foot to form a multi-point locking connection, the contact area with the wheel hub groove is significantly increased, improving connection reliability and effectively preventing loosening or falling off.

[0014] 2. The design incorporates openings, notches, and S-shaped guide ramps to optimize stress distribution and reduce assembly pressure, balancing ease of installation with long-term stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of the hub decorative center cover and its locking foot structure according to the present invention; Figure 2 This is a schematic diagram of the arc-shaped block structure of this utility model; Figure 3 This is a schematic diagram of the snap ring structure of this utility model; Figure 4 This is a schematic diagram of the stop block structure of this utility model; Figure 5 This is a schematic diagram of the overall structure of the card script body of this utility model; Figure 6 This is a schematic diagram of the bayonet structure of this utility model; Figure 7 This is a schematic diagram of the notch structure of this utility model; Figure 8 This is a schematic diagram of the S-shaped guide slope structure of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Wheel hub decorative center cover body; 2. Clip body; 21. Arc block; 211. Notch; 212. S-shaped guide slope; 22. Buckle; 221. Stop block; 23. Arc plate; 231. Opening; 3. Snap spring; 4. Wheel hub body; 41. Groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-8 This utility model provides an embodiment: a wheel hub decorative center cover and its locking foot structure, including a wheel hub decorative center cover body 1, a plurality of locking foot bodies 2 integrally formed on the wheel hub decorative center cover body 1, the plurality of locking foot bodies 2 arranged in a ring array, the locking foot body 2 includes an arc plate 23 and an arc block 21 integrally formed with the outer contour of the arc plate 23, the arc block 21 is used to lock into the groove 41 of the wheel hub body 4, the arc blocks 21 are spaced apart on the arc plate 23, there is a gap between the arc plate 23 and the wheel hub decorative center cover body 1, the locking foot body 2 is also provided with a locking slot 22, and a ring-shaped retaining spring 3 is locked in the locking slot 22, the retaining spring 3 is used to support the arc block 21. This structure significantly improves the snap-fit ​​stability and reduces the possibility of detachment during later use by integrating the snap-fit ​​foot body 2 with the center cover body and using the snap-fit ​​spring 3 to provide elastic support for the arc block 21. At the same time, the spacing design between the arc plate 23 and the body provides elastic deformation space for the snap-fit ​​foot, effectively buffering stress during the pressing and installation process, avoiding breakage caused by excessive rigidity, thereby extending the product's service life and improving installation reliability. In order to ensure a certain strength, reinforcing ribs can be provided in the gap between the arc plate 23 and the wheel hub decorative center cover body 1.

[0019] Please see Figure 1-4 A further solution based on this embodiment is to provide an opening 231 on the arc plate 23 at every predetermined number of arc blocks 21. This opening 231 can effectively cut off the continuous stress transmission path on the arc plate 23, reduce the overall rigidity, and enable each arc block 21 to independently adjust its position when subjected to force, better adapt to the manufacturing tolerance of the hub groove 41, improve assembly smoothness and reduce installation resistance.

[0020] Please see Figure 1-3 A further solution based on this embodiment is as follows: each arc plate 23 is provided with six arc-shaped blocks 21, the opening 231 is located in the middle of the arc plate 23, and three arc-shaped blocks 21 are distributed on its left and right sides respectively. This symmetrical layout not only ensures uniform stress distribution of the card, but also makes the two sides of the opening 231 form a structurally balanced flexible zone, further optimizing the stress distribution and preventing fatigue cracking caused by local stress concentration. More than six arc-shaped blocks 21 are prone to excessive rigidity, while fewer than six will reduce the connection strength.

[0021] Please see Figure 1-5A further solution based on this embodiment is as follows: a stop 221 is provided on the arc plate 23. The stop 221 is used to prevent the retaining spring 3 from falling out of the latch 22. The setting of the stop 221 effectively limits the displacement of the retaining spring 3, avoids the retaining spring 3 from accidentally falling out due to vibration during use, and ensures long-term stable and reliable support function. Here, the retaining spring 3 is a ring-shaped metal rod.

[0022] Please see Figure 1-5 A further solution based on this embodiment is that the structure of the opening 231 is closed. The closed opening 231 avoids stress concentration at the end of the opening 231 (compared to the U-shaped opening 231), while maintaining the overall strength of the arc plate 23, taking into account both flexibility and structural integrity.

[0023] For a second embodiment of the arc-shaped block 21 structural style, please refer to... Figure 6-8 A further solution based on this embodiment is that a notch 211 can be provided on the arc-shaped block 21. The notch 211 is used to reduce the force pressed onto the hub body 4. The introduction of the notch 211 significantly reduces the initial pressing force, making installation easier and suitable for manual assembly scenarios.

[0024] Please see Figure 6-7 A further solution based on this embodiment is as follows: Among the three arc-shaped blocks 21 on the left side of the opening 231, notches 211 are provided on the adjacent arc-shaped blocks 21 on both sides of the middle arc-shaped block 21; among the three arc-shaped blocks 21 on the right side of the opening 231, notches 211 are also provided on the adjacent arc-shaped blocks 21 on both sides of the middle arc-shaped block 21. While retaining a structure that facilitates manual pressing, the retaining spring 3 can also abut against part of the arc-shaped blocks 21, achieving a balance between ease of pressing and resistance to detachment.

[0025] Please see Figure 7-8 A further solution based on this embodiment is as follows: the arc-shaped block 21 is provided with an S-shaped guide slope 212, which is used to reduce the pressing force of the arc-shaped block 21 into the groove 41. The S-shaped guide slope 212 guides the arc-shaped block 21 to smoothly press into the wheel hub groove 41 through a continuously changing curvature, further reducing assembly resistance, which is suitable for situations where the plastic sheet hardens in winter and improves the user experience.

[0026] Working principle: During installation, the hub decorative center cover body 1 is aligned with the hub body 4 and axial pressure is applied, so that the arc-shaped block 21 on the clip body 2 is inserted into the groove 41 of the hub body 4. The clip body 2 is arranged in a ring array. Each clip body 2 includes an arc plate 23 connected to the center cover body through intervals. The arc plate 23 is provided with six arc-shaped blocks 21 distributed at intervals. The opening 231 is located in the middle and there are three arc-shaped blocks 21 on each side. A ring-shaped metal retaining spring 3 is engaged in the slot 22, and the retaining spring 3 is prevented from falling off by the stop block 221, thereby providing elastic support while ensuring a stable connection. Based on this, in the first embodiment, the opening 231 is a closed structure, which, together with the gap between the arc plate 23 and the body, forms a symmetrical flexible area, effectively releasing stress during assembly and vibration, focusing on improving structural durability and fatigue resistance. In the second embodiment, notches 211 and S-shaped guide ramps 212 are provided on the arc blocks 21. The notches 211 are located on the arc blocks 21 on the left and right sides of the opening 231, not in the middle, making these positions easier to deform and reducing pressing force, while the middle arc block 21 remains intact to maintain locking force. The S-shaped guide ramps 212 guide smoothly into the groove through continuous curvature, significantly improving the manual assembly experience, especially suitable for scenarios where plastic hardens in low-temperature environments. Both embodiments optimize long-term reliability and installation convenience, and can be flexibly selected according to actual application needs.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wheel hub decorative center cover and its locking foot structure, characterized in that: The device includes a hub decorative center cover body (1), on which several clip bodies (2) are integrally formed. The clip bodies (2) are arranged in a ring array. Each clip body (2) includes an arc plate (23) and an arc block (21) integrally formed with the outer contour of the arc plate (23). The arc block (21) is used to be inserted into the groove (41) of the hub body (4). The arc blocks (21) are spaced apart on the arc plate (23). There is a gap between the arc plate (23) and the hub decorative center cover body (1). The clip body (2) is also provided with a slot (22). A ring-shaped retaining spring (3) is engaged in the slot (22). The retaining spring (3) is used to support the arc block (21).

2. The wheel hub decorative center cover and its locking foot structure according to claim 1, characterized in that: An opening (231) is provided on the arc plate (23) at every predetermined number of arc blocks (21).

3. The wheel hub decorative center cover and its locking foot structure according to claim 2, characterized in that: Each arc plate (23) has six arc blocks (21), with an opening (231) located in the middle of the arc plate (23), and three arc blocks (21) distributed on its left and right sides respectively.

4. The wheel hub decorative center cover and its locking foot structure according to claim 3, characterized in that: The arc plate (23) is provided with a stop (221), which is used to prevent the snap ring (3) from falling out of the slot (22).

5. The wheel hub decorative center cover and its locking foot structure according to claim 4, characterized in that: The structure of the opening (231) is closed.

6. The wheel hub decorative center cover and its locking foot structure according to claim 4, characterized in that: A notch (211) can be made on the arc block (21), and the notch (211) is used to reduce the force pressed onto the hub body (4).

7. The wheel hub decorative center cover and its locking foot structure according to claim 6, characterized in that: Among the three arc-shaped blocks (21) on the left side of the opening (231), the arc-shaped block (21) located in the middle has a notch (211) on the adjacent arc-shaped blocks (21) on both sides; among the three arc-shaped blocks (21) on the right side of the opening (231), the arc-shaped block (21) located in the middle also has a notch (211) on the adjacent arc-shaped blocks (21) on both sides.

8. The wheel hub decorative center cover and its locking foot structure according to claim 7, characterized in that: The arc block (21) is provided with an S-shaped guide slope (212), which is used to reduce the pressing force of the arc block (21) entering the groove (41).

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