High-strength carbon fiber spoke

Abstract

The utility model provides a high-strength carbon fiber spoke. The diameter of the middle of a spoke body is larger than that of the two ends of the spoke body. The long tooth cap and the round cap head are arranged on the spoke body in a sleeving mode from the end of the spoke body, then the end of the spoke body is covered with yarn, a fixed connection thread part fixed to the end of the spoke body is formed in a mold curing mode, the fixed connection part is machined through a material removing machining method, and a fixed connection thread head is formed. The two ends of the spoke body are fixedly connected with the thread heads, the thread heads are smeared with adhesives, the long tooth caps and the round cap heads are rotated outwards anticlockwise, the long tooth caps and the round cap heads are rotated from the inner ends of the thread heads to the outer ends, the thread heads of the long tooth caps and the round cap heads are meshed, and the spoke body, the long tooth caps and the round cap heads are fixed together; the long tooth cap, the round cap and the spoke body are mutually meshed through threads and are bonded through the adhesive, so that tight limiting of the long tooth cap, the round cap and the spoke body is achieved, separation is not prone to occurring, and the tensile strength requirement and the fatigue performance requirement of the spoke are met.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing wheel spokes on a wheel rim or a wheel hub, in particular to a high-strength carbon fiber spoke. Background Art

[0002] Spokes for vehicles are generally used to connect the rim and the hub. Traditional spokes for vehicles are made of stainless steel, which is heavy, expensive, and has low production efficiency. In order to solve this problem, the prior art has introduced carbon fiber spokes, which include a carbon fiber spoke rod and two metal parts connected to the two ends of the carbon fiber spoke rod, one of which is a cap head that can be connected to the hub, and the other is a tooth cap that can be connected to the rim. Since bicycle spokes are hinged components, during use, the spokes are subjected to tension, and the spokes are easily detached due to tension changes. Therefore, the tensile strength requirements and fatigue performance requirements of the spokes are relatively high. In order to improve the tensile strength of the spokes, the method commonly used in the prior art is to glue the spokes and the spoke joint connector, but in long-term use, the spokes are easily detached due to glue fatigue damage, so a high-strength carbon fiber spoke is proposed. Utility Model Content

[0003] In order to solve at least one of the above-mentioned technical shortcomings, the utility model provides a high-strength carbon fiber spoke, including: a spoke body, the middle diameter of the spoke body is larger than the diameter at both ends, both ends of the spoke body are fixedly provided with a conical thread head, the outer diameter of the outer end of the thread head is larger than the outer diameter of the inner end, the outer wall of the thread head is coated with an adhesive layer formed by an adhesive, and the thread heads at both ends of the spoke body are respectively connected with a long tooth cap and a round cap head in a counterclockwise external thread through the adhesive layer.

[0004] Furthermore, a threaded hole one is provided inside the long-tooth cap and passes through both ends, the threaded hole one is threadedly connected to the threaded head, and an outer wall at one end of the outer side of the long-tooth cap is provided with an external thread.

[0005] Furthermore, a second threaded hole is provided inside the round cap head 3 and passes through both ends, and the second threaded hole is threadedly connected to the threaded head.

[0006] Furthermore, the outer wall at one inner end of the long-tooth cap is provided with four side planes.

[0007] Furthermore, the outer surface of the round hat head is provided with two parallel flat side surfaces.

[0008] Furthermore, the entire outer wall is provided with a PVD coating. Beneficial Effects

[0009] The long tooth cap and the round cap head are put on the spoke body from the end of the spoke body, and then the end of the spoke body is wrapped with yarn and solidified using a mold to form a fixed threaded part fixed to the end of the spoke body, the fixed part is processed by a material removal processing method to form a fixed threaded head, and then adhesive is applied to the fixed threaded heads at both ends of the spoke body, and then the long tooth cap and the round cap head are rotated outward counterclockwise so that the long tooth cap and the round cap head are rotated from the inner end to the outer end of the threaded head to make the threaded heads of the long tooth cap and the round cap head mesh, so as to fix the spoke body, the long tooth cap and the round cap head together. The long tooth cap, the round cap and the spoke body not only have threads meshing with each other, but are also bonded by the adhesive, so that the three are tightly limited and not easy to separate, thereby achieving the requirements for improving the tensile strength and fatigue performance of the spokes.

[0010] The realization of the purpose, functional features and advantages of the present invention will be further described in conjunction with embodiments and with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the overall front view of the utility model.

[0012] Figure 2 It is a front view of the spoke body of the utility model.

[0013] Figure 3 It is a cross-sectional view of the round cap head of the utility model.

[0014] Figure 4 It is a side view of the round cap of the utility model.

[0015] Figure 5 It is an axonometric view of the round cap head of the utility model.

[0016] Figure 6 It is a cross-sectional view of the long-tooth cap of the present utility model.

[0017] Figure 7 It is a front view of the tooth growing cap of the present utility model.

[0018] Figure 8 It is a side view of the tooth growing cap of the present utility model.

[0019] Fig. 9 It is an axonometric view of the long-tooth cap of the present utility model.

[0020] exist Figures 1 to 9 , the correspondence between the component names or lines and the figure numbers is: spoke body 1, threaded head 101, long tooth cap 2, threaded hole 1 201, external thread 203, side plane 204, round cap head 3, threaded hole 2 301, flat side surface 302. DETAILED DESCRIPTION

[0021] Please refer to Figures 1 to 9;

[0022] This embodiment provides a high-strength carbon fiber spoke, referring to Figures 1 to 9 , comprising: a spoke body 1, wherein the middle diameter of the spoke body 1 is larger than the diameters at both ends, both ends of the spoke body 1 are fixedly provided with a conical thread head 101, the outer diameter of the outer end of the thread head 101 is larger than the outer diameter of the inner end, the outer wall of the thread head 101 is coated with an adhesive layer formed by an adhesive, and the thread heads 101 at both ends of the spoke body 1 are respectively connected with a long tooth cap 2 and a round cap head 3 by counterclockwise external threading through the adhesive layer;

[0023] In the specific implementation, the long tooth cap 2 and the round cap head 3 are put on the spoke body 1 from the end of the spoke body 1, and then the end of the spoke body 1 is wrapped with yarn and solidified by a mold to form a fixed threaded part fixed to the end of the spoke body 1, and the fixed part is processed by a material removal processing method to form a fixed threaded head 101, and then adhesive is applied to the fixed threaded heads 101 at both ends of the spoke body 1, and then the long tooth cap 2 and the round cap head 3 are rotated outwardly counterclockwise, so that the long tooth cap 2 and the round cap head 3 are rotated from the inner end to the outer end of the threaded head 101, so that the threaded heads 101 of the long tooth cap 2 and the round cap head 3 are meshed, so as to fix the spoke body 1, the long tooth cap 2 and the round cap head 3 together, and the long tooth cap 2, the round cap head 3 and the spoke body 1 are not only meshed with each other by the threads, but also bonded by the adhesive, so that the three are tightly limited and not easy to separate, so as to achieve the requirements of improving the tensile strength and fatigue performance of the spokes;

[0024] Among them, the middle diameter of the spoke body 1 is larger than the diameters at both ends, so that the long tooth cap 2 and the round cap head 3 can be first put on the two ends of the spoke body 1, and then the threaded head 101 is made. After the threaded head 101 is made, the long tooth cap 2 and the round cap head 3 are connected to the threaded head 101 by rotating counterclockwise.

[0025] For further reference, Figures 6 to 9 The interior of the long-tooth cap 2 is provided with a threaded hole 201 penetrating through both ends, the threaded hole 201 is threadedly connected with the thread head 101, and the outer wall of the outer end of the long-tooth cap 2 is provided with an external thread 203;

[0026] In a specific implementation, the connection between the thread cap 2 and the spoke body 1 is completed by threading the threaded hole 201 and the threaded head 101 .

[0027] For further reference, Figures 3 to 5 The inside of the round cap head 3 is provided with a second threaded hole 301 penetrating through both ends, and the second threaded hole 301 is threadedly connected with the threaded head 101;

[0028] In a specific implementation, the connection between the round cap head 3 and the spoke body 1 is completed by threading the second threaded hole 301 with the threaded head 101 .

[0029] For further reference, Fig. 9 , the outer wall of one end of the inner side of the long tooth cap 2 is provided with four side planes 204;

[0030] In specific implementation, it is convenient to tighten the long tooth cap 2 by clamping it with a tool, and at the same time, the hub connector can make way.

[0031] For further reference, Figure 4 The outer surface of the round hat head 3 is provided with two parallel flat side surfaces 302;

[0032] In specific implementation, it is convenient to tighten the round cap head 3 by clamping it with a tool, and at the same time, the hub connector can be made to give way.

[0033] Furthermore, the entire outer wall is provided with a PVD coating;

[0034] During specific implementation, the overall surface is made wear-resistant and not easily scratched by sharp objects.

Claims

1. A high-strength carbon fiber spoke, comprising: The spoke body (1) is characterized in that: the middle diameter of the spoke body (1) is larger than the diameters at both ends; both ends of the spoke body (1) are fixedly provided with a conical thread head (101); the outer diameter of the outer end of the thread head (101) is larger than the outer diameter of the inner end; the outer wall of the thread head (101) is coated with an adhesive layer formed by an adhesive; the thread heads (101) at both ends of the spoke body (1) are respectively connected to a long tooth cap (2) and a round cap head (3) by counterclockwise external threading through the adhesive layer.

2. The high-strength carbon fiber spoke according to claim 1, characterized in that: The interior of the long-tooth cap (2) is provided with a threaded hole (201) penetrating through both ends, the threaded hole (201) is threadedly connected to the thread head (101), and an outer wall at one end of the outer side of the long-tooth cap (2) is provided with an external thread (203).

3. The high-strength carbon fiber spoke according to claim 2, characterized in that: The inside of the round cap head (3) is provided with a second threaded hole (301) penetrating through two ends, and the second threaded hole (301) is threadedly connected to the threaded head (101).

4. The high-strength carbon fiber spoke according to claim 3, characterized in that: Four side planes (204) are provided on an outer wall at one inner end of the tooth cap (2).

5. The high-strength carbon fiber spoke according to claim 4, characterized in that: The outer surface of the round cap head (3) is provided with two parallel flat side surfaces (302).

6. The high-strength carbon fiber spoke according to claim 5, characterized in that: The entire outer wall is provided with PVD coating.

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