CN216184195U

CN216184195U - Novel carbon fiber rim structure and bicycle wheel

Info

Publication number: CN216184195U
Application number: CN202122367019.8U
Authority: CN
Inventors: 张泽霖; 李中迅
Original assignee: Xiamen Fangyuanleqi Industry And Trade Co ltd
Current assignee: Xiamen Fangyuanleqi Industry And Trade Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-04-05
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a novel carbon fiber wheel rim structure which comprises two side walls, connecting arms and supporting arms, wherein the connecting arms and the supporting arms are connected with the opposite sides of the two side walls; the two side walls, the connecting arm and the supporting arm are integrally formed by carbon fibers, the two side walls are hollow, and foaming materials are filled in the hollow parts. The utility model also discloses a bicycle wheel using the novel carbon fiber rim structure. The utility model has simple structure, can enhance the strength of the rim on the premise of meeting the requirement of light weight, and does not influence the installation of the narrow tire.

Description

Novel carbon fiber rim structure and bicycle wheel

Technical Field

The utility model relates to the technical field of bicycle wheels, in particular to a novel carbon fiber rim structure and a bicycle wheel.

Background

At present, with the development of bicycle sports, people have higher and higher requirements on riding comfort, weight of a bicycle body, strength and speed of the bicycle body and the like. In the development direction of lightweight bicycle structures, carbon fiber composite materials have been increasingly applied to bicycle structures in recent years due to their light and strong characteristics, resulting in a more obvious trend of "carbon fiber" of bicycles.

In the manufacture of rims, carbon fibers are used, and most of the carbon fiber rims on the market are hollow annular structures in view of cost reduction and weight reduction, but the ductility of the carbon fibers is reduced after the carbon fibers are hardened and formed, and the hollow structures are easily damaged due to insufficient strength when the rims are stressed; if the thickness of the rim is increased for improving the strength of the rim, two ways are available for increasing the thickness of the rim, one way is to increase the thickness between the outer side wall and the inner side wall, then the thickness of the side wall of the rim is too thick, the whole weight of the rim is too heavy, and the requirement of light weight cannot be met; another method is to increase the thickness of the inner sidewall inwards, so that the distance between the two inner sidewalls becomes smaller, which results in limited selection of tire width and incapability of installing narrow tires.

In view of the above, the present inventors have made researches on the structure of a bicycle, and developed and designed a novel carbon fiber rim structure and a bicycle wheel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel carbon fiber rim structure, which can meet the requirements of light weight and enough strength and does not influence the installation of a narrow tire.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a novel carbon fiber wheel rim structure comprises two side walls, connecting arms and supporting arms, wherein the connecting arms and the supporting arms are connected with the opposite sides of the two side walls; the two side walls, the connecting arm and the supporting arm are integrally formed by carbon fibers, the two side walls are hollow, and foaming materials are filled in the hollow parts.

Further, the foaming material is one selected from polystyrene, polypropylene, polyvinyl chloride, phenolic plastics and polyurethane.

Furthermore, the two side walls extend outwards at one side corresponding to the supporting arm to form a hook part, and the tire on the supporting arm is clamped and arranged.

Further, the hook part is hollow, and the foaming material is filled into the hollow inside of the hook part.

Further, the width of the hook part is slightly larger than the width of the two side walls, and the width of the hollow inside of the hook part is consistent with the width of the hollow inside of the two side walls.

Furthermore, the two side walls are gradually folded from the side connected with the supporting arm to the side connected with the connecting arm, and the two side walls are in arc shapes with opposite openings.

Furthermore, the support arm is a three-section structure, two sections connected with the two side walls are straight lines, and the middle section of the support arm is concave towards the connecting arm to form an arc-shaped section.

The utility model also discloses a bicycle wheel, which comprises a central shaft, a plurality of spokes and a tire, and also comprises the novel carbon fiber rim structure, wherein the spokes are connected with the novel carbon fiber rim structure and the central shaft, and the tire is arranged on the novel carbon fiber rim structure.

The utility model also discloses a bicycle wheel, which comprises a central shaft, a wheel disc and a tire, and also comprises the novel carbon fiber wheel rim structure, wherein the wheel disc is connected with the novel carbon fiber wheel rim structure and the central shaft, and the tire is arranged on the novel carbon fiber wheel rim structure.

After the scheme is adopted, the two side walls of the wheel are hollow, and the hollow is filled with the foaming material so as to increase the strength of the wheel rim, and the foaming material is light in weight and does not influence the light weight of the wheel; finally, the inner surface of the sidewall is kept still while the foam is filled, and a narrow tire can be mounted on the support arm without affecting the selection of the tire width.

The utility model is described in further detail below with reference to the figures and the specific embodiments.

Drawings

FIG. 1 is a front view of a first embodiment of the present invention;

FIG. 2 is a fragmentary view of a first embodiment of the utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a cross-sectional view of a first embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a third embodiment of the present invention.

Description of reference numerals:

the rim structure comprises a rim structure 1, a side wall 11, a hook part 111, a connecting arm 12, a supporting arm 13, an annular hollow 14 and a foaming object 15;

wheel 10, tire 2, center shaft 3, spoke 4, rim plate 5.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "center", "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 4, which are first embodiments of the present invention, a novel carbon fiber rim structure disclosed in this embodiment includes two side walls 11, a connecting arm 12 and a supporting arm 13, where the connecting arm 12 and the supporting arm 13 are connected to the two side walls 11, and the two side walls 11, the connecting arm 12 and the supporting arm 13 are connected to form an annular hollow structure 14; the two side walls 11 are gradually drawn from the side connected with the support arm 13 to the side connected with the connecting arm 12, and the two side walls 11 are arc-shaped with opposite openings. The supporting arm 13 is a three-section structure, two sections connected with the two side walls 11 are straight lines, the middle section of the supporting arm 13 is concave downward towards the connecting arm 12 to form an arc-shaped section, the two side walls 11, the connecting arm 12 and the supporting arm 13 are integrally formed by carbon fibers, the two side walls 11 are hollow, and the hollow is filled with a foaming material 15. Specifically, the foamed material 15 is a material with high strength but light weight, such as polystyrene, polypropylene, polyvinyl chloride, phenol plastic, polyurethane, and the like. In this way, the foam 15 is filled in the hollow inside of the two side walls 11, so that compared with the rim structure 1 with the two side walls 11 of solid structure, the rim structure has lighter weight, better ductility and stronger strength, and is less prone to damage when being stressed. Because of filling foam 15 can not cause the internal surface of both sides wall 11 to shrink inwards for can install narrower narrow child on support arm 13, can not influence the selection to the tire width, and the surface of both sides wall 11 outwards expands, make the whole flow more that tire and rim formed, increase air resistance promotes the speed of riding of car hand.

To facilitate the connection between the tire and the rim 1, the two sidewalls 11 extend outward at one side of the alignment support arm 13 to form a hook 111 for engaging with the tire on the support arm 13. The width of the hook 111 is slightly larger than the width of the two side walls 11, the hook 111 is hollow, the width of the hollow inside is the same as the width of the hollow inside of the two side walls 11, the foam 15 fills the hollow inside of the hook 111, and in other embodiments, the side walls 11 may have other structures, which are not illustrated herein.

Referring to fig. 5, a bicycle wheel 10 according to a second embodiment of the present invention includes a center shaft 3, a plurality of spokes 4, a tire 2, and a rim structure, where the rim structure is the novel carbon fiber rim structure 1 according to the first embodiment, the plurality of spokes 4 are connected to the novel carbon fiber rim structure 1 and the center shaft 3, and the tire 2 is disposed on the novel carbon fiber rim structure 1.

Referring to fig. 6, a third embodiment of the present invention is a bicycle wheel 10, which includes a central shaft 3, a wheel disc 5, a tire 2, and a rim structure, where the rim structure is the novel carbon fiber rim structure 1 described in the first embodiment, the wheel disc 5 is connected to the novel carbon fiber rim structure 1 and the central shaft 3, and the tire 2 is disposed on the novel carbon fiber rim structure 1.

The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing on the protection scope of the present invention.

Claims

1. A novel carbon fiber rim structure is characterized in that: the device comprises two side walls, connecting arms and supporting arms, wherein the connecting arms and the supporting arms are connected with the opposite sides of the two side walls; the two side walls, the connecting arm and the supporting arm are integrally formed by carbon fibers, the two side walls are hollow, and foaming materials are filled in the hollow parts.

2. A novel carbon fiber rim structure according to claim 1, wherein: the foaming material is selected from one of polystyrene, polypropylene, polyvinyl chloride, phenolic plastics and polyurethane.

3. A novel carbon fiber rim structure according to claim 1, wherein: the two side walls extend outwards at one side corresponding to the supporting arm to form a hook part, and the hook part is clamped and arranged on the tire on the supporting arm.

4. A novel carbon fiber rim structure according to claim 3, wherein: the hook part is hollow, and the foam is filled into the hollow inside of the hook part.

5. A novel carbon fiber rim structure according to claim 4, wherein: the width of the hook part is slightly larger than the width of the two side walls, and the width of the hollow inside of the hook part is consistent with the width of the hollow inside of the two side walls.

6. A novel carbon fiber rim structure according to claim 1, wherein: the two side walls are gradually folded from one side connected with the supporting arm to one side connected with the connecting arm, and the two side walls are in arc shapes with opposite openings.

7. A novel carbon fiber rim structure according to claim 1, wherein: the support arm is the syllogic structure, with two sections that the both sides wall is connected are the straight line, the middle section orientation of support arm the linking arm direction is recessed, forms an arc section.

8. The utility model provides a bicycle wheel, includes center pin, a plurality of spoke and tire, its characterized in that: the novel carbon fiber rim structure as claimed in any one of claims 1 to 7, wherein the plurality of spokes connect the novel carbon fiber rim structure and the central shaft, and the tire is disposed on the novel carbon fiber rim structure.

9. A bicycle wheel, includes center pin, rim plate and tire, its characterized in that: the novel carbon fiber rim structure of any one of claims 1-7, wherein the wheel disc is connected to the novel carbon fiber rim structure and the central shaft, and the tire is arranged on the novel carbon fiber rim structure.