Carbon fiber bicycle wheel rim reinforcing structure

Abstract

The utility model discloses a carbon fiber bicycle wheel rim reinforcing structure, which relates to the field of wheels and comprises a wheel rim body and a reinforcer, the wheel rim body is a carbon fiber product, a plurality of grooves are arranged on the left outer side wall and the right outer side wall of a cavity of the wheel rim body, and the cross section of the reinforcer is U-shaped. The reinforcing parts are fixedly connected to the wheel rim body through super glue, and the grooves are filled with the super glue, so that the reinforcing parts wrap the left outer side wall and the right outer side wall of the cavity and stretch across the inner circumferential face of the wheel rim body. The reinforcing pieces are adopted to wrap the cavity of the wheel rim body, so that the impact of the wheel spokes on the wheel rim body can be shared, and the wheel rim body is prevented from being broken due to local overload or impact. The grooves can guarantee the strength of the wheel rim body while saving materials, and the contact area of the super glue and the wheel rim body can be increased and decreased. And under the condition that the thickness of the super glue is reduced, the connection strength of the wheel rim body and the reinforcer is ensured, so that the product is more compact in structure and thinner in thickness.

Description

Technical Field

[0001] The utility model relates to the field of wheels, in particular to a carbon fiber bicycle wheel rim reinforcement structure. Background Art

[0002] Currently, most mid- to high-end bicycle rims on the market are made of carbon fiber, which offers advantages such as light weight, high strength, and corrosion resistance. However, carbon fiber rims are also brittle and easily break under overload or impact, compromising bicycle safety. Furthermore, carbon fiber rims are expensive and difficult to repair after breakage, leading to increased maintenance costs. Therefore, it is necessary to design a new carbon fiber bicycle rim primarily composed of carbon fiber, supplemented by other materials, to achieve a reinforced carbon fiber bicycle rim. Summary of the Invention

[0003] The purpose of the utility model is to provide a carbon fiber bicycle wheel rim reinforcement structure, which aims to overcome the problems existing in the prior art.

[0004] To achieve the purpose, the present invention provides the following technical solutions:

[0005] A carbon fiber bicycle wheel rim reinforcement structure includes a wheel rim body, which is made of carbon fiber and is provided with a tire groove and a cavity. The left and right outer walls of the cavity are provided with a plurality of grooves. The rim body also includes a reinforcement member, the cross-section of the reinforcement member is U-shaped, the reinforcement member is wrapped around the left and right outer walls of the cavity, and the reinforcement member spans the inner circumference of the wheel rim body. The reinforcement member and the wheel rim body are fixed and bonded by strong glue, and the strong glue fills the plurality of the grooves.

[0006] Furthermore, the left and right outer walls of the wheel rim body are provided with a first limiting groove at the junction of the tire groove and the cavity, and limiting protrusions are provided at both ends, and the limiting protrusions are fixedly embedded in the first limiting groove; both ends of the reinforcement are provided with a bending section folded outward, and the bending section is located below the limiting protrusion.

[0007] Furthermore, the reinforcement is made of aluminum alloy.

[0008] Furthermore, the groove is honeycomb-shaped.

[0009] Furthermore, the depth of the groove is between 1 mm and 3 mm.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] First, the use of reinforcements to wrap around the cavity of the wheel rim distributes the impact of the wheel spokes on the rim, preventing the rim from breaking due to localized overload or impact. The grooves save material while maintaining the strength of the rim itself, increasing or decreasing the contact area between the superglue and the rim. This ensures the connection strength between the rim and reinforcements while reducing the thickness of the superglue, resulting in a more compact and thinner product.

[0012] Secondly, both ends of the reinforcement are provided with limiting protrusions and bending sections, which form upper and lower clamps to facilitate the positioning and installation of the reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the main view of the utility model.

[0014] Figure 2 For this utility model Figure 1 Partial cross-sectional view along the AA direction.

[0015] Figure 3 It is a three-dimensional schematic diagram of the present utility model.

[0016] Figure 4 In the present invention, the wheel rim body is along Figure 1 Partial cross-sectional view along the BB direction. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention will be described below with reference to the accompanying drawings. In order to fully understand the present invention, many details are described below, but for those skilled in the art, the present invention can be implemented without these details.

[0018] like Figures 1-4 As shown, a carbon fiber bicycle wheel rim reinforcement structure includes a wheel rim body 1 and a reinforcement member 2. The wheel rim body 1 is made of carbon fiber and is provided with a tire groove 11 and a cavity 12.

[0019] like Figures 1-4 As shown, the left and right outer walls of cavity 12 are arranged with a plurality of grooves 14. The reinforcement member 2 has a U-shaped cross-section and is made, but not limited to, of aluminum alloy. During assembly, the reinforcement member 2 is fixed to the wheel rim body 1 with strong adhesive 3, which fills these grooves 14, wrapping the reinforcement member 2 around the left and right outer walls of cavity 12 and spanning the inner circumference of the wheel rim body 1.

[0020] It should be noted that the super glue 3 can be selected from suitable existing super glue products, and no excessive restrictions are imposed here. The focus is on ensuring the connection strength between the wheel rim body 1 and the reinforcement 2.

[0021] like Figures 1-4As shown, the carbon fiber wheel rim body 1 has high strength, but it is also brittle and easily breaks under overload or impact. Using reinforcement 2 to wrap around cavity 12 of wheel rim body 1 can distribute the impact of the wheel spokes on the wheel rim body 1, preventing the wheel rim body 1 from breaking due to local overload or impact. Furthermore, if the wheel rim body 1 breaks, reinforcement 2 can keep the broken parts connected, preventing them from completely disintegrating, thereby improving the safety of the wheel rim.

[0022] like Figures 1-4 As shown, the groove 14 can ensure the strength of the wheel rim body 1 while saving materials, and the groove 14 can increase or decrease the contact area between the super glue and the wheel rim body 1. When the thickness of the super glue is reduced, the connection strength between the wheel rim body 1 and the reinforcement 2 is ensured, making the structure of the product more compact and thinner. Preferably, the groove 14 includes but is not limited to a honeycomb shape. If the groove 14 is too deep, it will affect the strength of the wheel rim body 1, and if it is too shallow, it will reduce the contact area between the wheel rim body 1 and the super glue 3, affecting the connection strength. Therefore, the depth of the groove 14 is preferably between 1mm and 3mm.

[0023] like Figures 1-4 As shown, of course, in addition to filling the spaces between these grooves 14, superglue 3 also secures the wheel rim body 1 and the reinforcement member at other locations (not shown). For example, if the groove 14 is 2mm deep, the superglue 3 can be 2mm thick. The wheel rim body 1 and reinforcement member 2 are only secured with superglue 3 at the grooves 14, while remaining tightly fitted. The superglue 3 can be 3mm thick. Besides the 3mm thick superglue 3 at the grooves 14, the wheel rim body 1 and reinforcement member 2 are also secured with 1mm thick superglue at other locations.

[0024] like Figures 1-4 As shown, the left and right outer walls of the wheel rim body 1 are each provided with a first limiting groove 13 at the junction of the tire groove 11 and the cavity 12. A limiting protrusion 21 is provided at each end of the reinforcement member 2. After assembly, the limiting protrusion 21 is fixedly embedded in the first limiting groove 13. Both ends of the reinforcement member 2 are provided with an outwardly folded bent section 22, which is located below the limiting protrusion 21. The limiting protrusion 21 and the bent section 22 form an upper and lower clamping position, facilitating the positioning and installation of the reinforcement member 2.

[0025] It is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A carbon fiber bicycle wheel rim reinforcement structure, comprising a rim body made of carbon fiber, the rim body being provided with a tire groove and a cavity, characterized in that: The left and right outer walls of the cavity are arranged with a number of grooves, and also include a reinforcement member. The cross-section of the reinforcement member is U-shaped. The reinforcement member is wrapped around the left and right outer walls of the cavity, and the reinforcement member spans the inner circumference of the wheel rim body. The reinforcement member and the wheel rim body are fixed and bonded by strong glue, and the strong glue fills the several grooves.

2. The carbon fiber bicycle wheel rim reinforcement structure according to claim 1, characterized in that: The left and right outer side walls of the wheel rim body are provided with a first limiting groove at the junction of the tire groove and the cavity, and both ends are provided with limiting protrusions, which are fixedly embedded in the first limiting groove; both ends of the reinforcement are provided with a bending section folded outward, and the bending section is located below the limiting protrusion.

3. The carbon fiber bicycle wheel rim reinforcement structure according to claim 1, characterized in that: The reinforcement is made of aluminum alloy.

4. The carbon fiber bicycle wheel rim reinforcement structure according to claim 1, characterized in that: The grooves are honeycomb-shaped.

5. A carbon fiber bicycle wheel rim reinforcement structure according to claim 1 or 4, characterized in that: The depth of the groove is between 1 mm and 3 mm.

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