Rim protection cover and rim

By introducing a combination of a movable plate and a spring into the wheel rim protector, the problem of nuts loosening during truck driving is solved, achieving an effective cushioning effect and improving safety.

CN224170750UActive Publication Date: 2026-04-28ZHENJIANG CORIM MFR
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG CORIM MFR
Filing Date
2025-06-09
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional rim protectors lack an effective cushioning mechanism during truck movement, which can cause nuts to loosen and pose a safety hazard.

Method used

Design a wheel rim protection cover, comprising a protective disc, a fixed bracket, a movable plate, and a spring. The spring absorbs external impacts, reducing the risk of nut loosening, and a combination structure of the movable plate and spring is used for fixation.

Benefits of technology

The spring's cushioning effect reduces the risk of nut loosening, improving the stability and safety of the rim protector.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224170750U_ABST
    Figure CN224170750U_ABST
Patent Text Reader

Abstract

The rim protection cover comprises a protection disc, a plurality of through holes are formed in the protection disc in the circumferential direction of the protection disc, a plurality of fixing supports are arranged on the bottom face of the protection disc at intervals, first bolt penetrating holes are formed in the bottom faces of the fixing supports, grooves are formed in the inner bottom faces of the fixing supports, and movable plates are arranged above the grooves. Second bolt penetrating holes are formed in the movable plate, and springs are arranged between the top face of the movable plate and the bottom face of the protection disc. By arranging the movable plate and the spring, during installation, the nut is tightened downwards, the nut presses the movable plate downwards, meanwhile, the movable plate stretches the spring to move downwards till the bottom face of the movable plate abuts against the bottom face of the groove, fixing of the nut is completed, external impact is absorbed through the stretched spring, the buffering effect is achieved, and the risk that the nut is loosened is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a rim protective cover and a rim. Background Technology

[0002] Wheel rim protectors are important devices on the front wheels of trucks used to protect the bolts and nuts. They typically consist of a disc and an I-shaped bracket on the back of the disc, which mates with holes in the wheel rim, fits over the bolts, and is then secured to the outside of the rim with nuts. This prevents external impurities from corroding the bolts and nuts, providing a certain degree of protection.

[0003] However, during truck operation, the traditional protective cover lacks an effective buffering mechanism in the face of continuous vibration and impact from complex road conditions, which may cause the nuts to loosen and pose a safety hazard. Utility Model Content

[0004] The main purpose of this utility model is to provide a rim protection cover and a rim to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] A wheel rim protector includes a protective disc with multiple through holes along its circumference. Multiple fixed supports are spaced apart on the bottom surface of the protective disc. Each fixed support has a first bolt hole on its bottom surface and a groove on its inner bottom surface. A movable plate is positioned above the groove, with a second bolt hole on the movable plate. A spring is positioned between the top surface of the movable plate and the bottom surface of the protective disc.

[0007] Preferably, four springs are provided, and the four springs are respectively provided at the four corners of the top surface of the movable plate.

[0008] Preferably, the bottom surface of the movable plate is provided with a guide post, and the bottom surface of the groove is provided with a guide hole.

[0009] Preferably, four guide posts are provided, and the four guide posts are respectively located at the four corners of the bottom surface of the movable plate.

[0010] Preferably, the thickness of the movable plate is equal to the depth of the groove.

[0011] Preferably, the bottom surface of the movable plate is inserted into the groove, and the top surface of the movable plate extends out of the groove.

[0012] Preferably, the bottom surface of the fixed bracket is provided with a locking groove.

[0013] A wheel rim includes a wheel ring and wheel spokes, wherein a wheel rim protective cover is provided on the outer side of the wheel spokes, and a locking strip is provided on the wheel spokes to cooperate with the locking groove.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] This utility model incorporates a movable plate and a spring. During installation, tightening the nut downwards causes the nut to press down on the movable plate, while simultaneously stretching the spring and moving it downwards until the bottom surface of the movable plate abuts against the bottom surface of the groove, thus securing the nut. The stretched spring absorbs external impacts, providing a buffering effect and reducing the risk of the nut loosening. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the back structure of the rim protection cover according to an embodiment of the present invention;

[0017] Figure 2 This is a front view of the rim protector according to an embodiment of the present invention;

[0018] Figure 3 This is an exploded view of the spring, movable plate, and fixed bracket according to an embodiment of the present invention.

[0019] Figure 4 This is a cross-sectional view of the spring, the movable plate, and the fixed bracket according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the rim structure according to an embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the wheel rim and wheel rim protective cover structure according to an embodiment of the present invention.

[0022] In the diagram: 1. Protective plate; 2. Through hole; 3. Fixed bracket; 4. First bolt hole; 5. Groove; 6. Moving plate; 7. Second bolt hole; 8. Spring; 9. Guide post; 10. Guide hole; 11. Locking groove; 12. Wheel rim; 13. Wheel spoke; 14. Locking strip. Detailed Implementation

[0023] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0024] like Figures 1-6 As shown, the rim protection cover provided in this embodiment includes a protective disc 1. The protective disc 1 has multiple through holes 2 along its circumference. The bottom surface of the protective disc 1 is provided with multiple fixed brackets 3 at intervals. The bottom surface of the fixed brackets 3 is provided with first bolt holes 4. The inner bottom surface of the fixed brackets 3 is provided with grooves 5. A movable plate 6 is provided above the grooves 5. The movable plate 6 is provided with second bolt holes 7. A spring 8 is provided between the top surface of the movable plate 6 and the bottom surface of the protective disc 1.

[0025] During installation, the bolts on the wheel are sequentially passed through the second bolt hole 7, the first bolt hole 4, and the through hole 2, and then secured with nuts. When tightening the nuts downwards, the nuts press down on the moving plate 6, and at the same time, the moving plate 6 stretches the spring 8 and moves downwards until the bottom surface of the moving plate 6 abuts against the bottom surface of the groove 5, thus completing the nut fixing. The stretched spring 8 absorbs external impacts, plays a buffering role, and reduces the risk of the nut loosening.

[0026] The number of through holes 2 is set according to the number of bolts on the wheel. The fixing bracket 3 is set directly below the through hole 2. The through hole 2 is coaxially set with the first bolt through hole 4 and the second bolt through hole 7. There are at least two fixing brackets 3. The two ends of the spring 8 are fixed to the top surface of the moving plate 6 and the bottom surface of the protective plate 1, respectively.

[0027] In this embodiment, as Figure 3 As shown, four springs 8 are provided, and the four springs 8 are respectively located at the four corners of the top surface of the moving plate 6 to ensure that the moving plate 6 moves smoothly when subjected to force, and to maximize the use of the elastic force of the springs 8 to improve the buffering effect.

[0028] In this embodiment, as Figure 3 As shown, the bottom surface of the movable plate 6 is provided with a guide post 9, and the bottom surface of the groove 5 is provided with a guide hole 10, to ensure that the movable plate 6 slides in the groove 5 in a fixed direction, avoiding offset or rotation, and ensuring that the compression and rebound process of the spring 8 is stable and reliable.

[0029] In this embodiment, as Figure 3 As shown, four guide pillars 9 are provided, and the four guide pillars 9 are respectively located at the four corners of the bottom surface of the moving plate 6, which further enhances the stability of the moving plate 6 when it is displaced.

[0030] In this embodiment, as Figure 4 As shown, the thickness of the movable plate 6 is equal to the depth of the groove 5, which facilitates the installation of the nut.

[0031] In this embodiment, as Figure 4 As shown, the bottom surface of the movable plate 6 is inserted into the groove 5, and the top surface of the movable plate 6 extends out of the groove 5, further ensuring the direction of displacement of the movable plate 6, so that it always maintains vertical movement.

[0032] In this embodiment, as Figure 1 As shown, the bottom surface of the fixed bracket 3 is provided with a locking groove 11, which cooperates with the locking strip 14 on the wheel rim to ensure that the wheel rim protective cover is accurately positioned during installation and to prevent circumferential displacement.

[0033] A wheel rim includes a wheel ring 12 and a wheel spoke 13. A wheel rim protective cover is provided on the outer side of the wheel spoke 13. A locking strip 14 is provided on the wheel spoke 13 to cooperate with the locking groove 11 to prevent the wheel rim protective cover from rotating circumferentially on the wheel rim, and to ensure that the bolts are aligned with the second bolt hole 7 and the first bolt hole 4, thereby improving the stability of the overall structure.

[0034] In summary, in this embodiment, by setting up a movable plate 6 and a spring 8, during installation, tightening the nut downwards causes the nut to press down on the movable plate 6, while the movable plate 6 stretches the spring 8 downwards until the bottom surface of the movable plate 6 abuts against the bottom surface of the groove 5, thus fixing the nut. The stretched spring 8 absorbs external impacts, playing a buffering role and reducing the risk of the nut loosening.

[0035] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A wheel rim protective cover, characterized in that: The device includes a protective plate (1), which has multiple through holes (2) arranged along its circumference. Multiple fixed brackets (3) are arranged at intervals on the bottom surface of the protective plate (1). The bottom surface of the fixed brackets (3) is provided with a first bolt through hole (4). The inner bottom surface of the fixed brackets (3) is provided with a groove (5). A movable plate (6) is arranged above the groove (5). The movable plate (6) is provided with a second bolt through hole (7). A spring (8) is arranged between the top surface of the movable plate (6) and the bottom surface of the protective plate (1).

2. A wheel rim protective cover according to claim 1, characterized in that: Four springs (8) are provided, and the four springs (8) are respectively provided at the four corners of the top surface of the movable plate (6).

3. A wheel rim protective cover according to claim 1, characterized in that: The bottom surface of the movable plate (6) is provided with a guide post (9), and the bottom surface of the groove (5) is provided with a guide hole (10).

4. A wheel rim protective cover according to claim 3, characterized in that: Four guide posts (9) are provided, and the four guide posts (9) are respectively located at the four corners of the bottom surface of the movable plate (6).

5. A wheel rim protective cover according to claim 1, characterized in that: The thickness of the movable plate (6) is equal to the depth of the groove (5).

6. A wheel rim protective cover according to claim 1, characterized in that: The bottom surface of the movable plate (6) is inserted into the groove (5), and the top surface of the movable plate (6) extends out of the groove (5).

7. A wheel rim protective cover according to claim 1, characterized in that: The bottom surface of the fixed bracket (3) is provided with a slot (11).

8. A wheel rim, comprising a rim (12) and spokes (13), wherein a rim protective cover is provided on the outer side of the spokes (13), characterized in that: The rim protector is the rim protector as described in claim 7, and the spokes (13) are provided with a locking strip (14) that works in conjunction with the locking groove (11).