CN213619190U

CN213619190U - Carbon fiber flower-drum spoke integrated configuration and bicycle hub

Info

Publication number: CN213619190U
Application number: CN202022390516.5U
Authority: CN
Inventors: 王鲲; 黄海林; 王井大; 陈顺和
Original assignee: Xiamen Hongji Weiye Industrial Co ltd
Current assignee: Xiamen Hongji Weiye Industrial Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-07-06
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a carbon fiber flower-drum spoke integrated configuration, make and set firmly respectively including being cavity pipy carbon fiber shell base, by carbon-fibre composite the big footpath flange and the path flange at the outside both ends of carbon fiber shell base, and follow respectively a plurality of carbon fiber spokes that big footpath flange and path flange outside circumference evenly laid, carbon fiber spoke's one end with big footpath flange or path flange integrated into one piece. The utility model also discloses a bicycle hub, included foretell carbon fiber flower-drum spoke integrated configuration. The utility model discloses in the middle of, the carbon fiber spoke respectively with big footpath flange, path flange integrated into one piece, joint strength between spoke and the flange is big, and is less to the demand of spoke, can reduce material cost and processing cost to a certain extent, simultaneously, the carbon fiber shell base can alleviate the whole weight of structure with the combined use of carbon fiber flange, carbon fiber spoke, avoids electrochemical corrosion's influence.

Description

Carbon fiber flower-drum spoke integrated configuration and bicycle hub

Technical Field

The utility model relates to a bicycle parts technical field, in particular to carbon fiber flower-drum spoke integrated configuration and bicycle wheel hub.

Background

The bicycle hub and the spokes are fittings for connecting a rim, and the bicycle hub is connected with the spokes through flanges on the bicycle hub. The existing hub flange is made of metal, and compared with a carbon fiber flange, the metal flange is heavy in weight and large in connection discreteness between carbon fiber spokes, and when the metal flange is matched with the carbon fiber spokes for use, the electrochemical corrosion phenomenon exists, so that the service life of the metal flange is shortened easily.

In order to improve the condition, the carbon fiber flange can be used for replacing a metal flange and is combined with the carbon fiber spoke for use, so that the structural weight can be reduced, the electrochemical corrosion phenomenon is avoided, and the influence on the service life of the flange is reduced. But because the degree of adaptability of carbon fiber spoke to the flower-drum requires highly, the carbon fiber flange of making simultaneously is difficult to guarantee with carbon fiber spoke connection quality, and the technology is also comparatively complicated.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a carbon fiber hub spoke integrated configuration and a bicycle hub including the same, which are formed by integrally molding a carbon fiber flange and a carbon fiber spoke, and have high connection strength and good quality.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a carbon fiber flower-drum spoke integrated configuration, is including being the tubulose carbon fiber shell base of cavity, make by carbon-fibre composite and set firmly respectively big footpath flange and the path flange at the outside both ends of carbon fiber shell base, and follow respectively a plurality of carbon fiber spokes that big footpath flange and path flange outside circumference were evenly laid, the one end of carbon fiber spoke with big footpath flange or path flange integrated into one piece.

Furthermore, the large-diameter flange comprises a first annular body and a plurality of spoke hole groups uniformly distributed along the circumferential direction of the first annular body, each spoke hole group comprises a first spoke hole and a second spoke hole, and an included angle formed by the axes of the first spoke hole and the second spoke hole opposite to the first spoke hole is an obtuse angle. The first spoke holes are formed in the outer wall surface of the first annular body, the axis of each spoke hole is parallel to the corresponding surface, and the second spoke holes are formed in the inner wall surface of the second annular body, and the axis of each spoke hole is parallel to the corresponding surface.

Further, the obtuse included angle formed by the axes of the first spoke hole and the second spoke hole opposite to the first spoke hole is 130-135 degrees.

Furthermore, the small-diameter flange comprises a second annular body and a plurality of pins which are integrally formed with the second annular body and uniformly distributed along the circumferential direction of the outer wall of the second annular body, third spoke holes are formed in one ends, far away from the second annular body, of the pins, and one ends of the carbon fiber spokes stretch into the third spoke holes and are integrally formed with the pins.

Further, the number of the third spoke holes is 4, 6 or 8.

Furthermore, the carbon fiber spoke and the one end of big footpath flange or path flange integrated into one piece is equipped with the anti-disengaging structure who is used for preventing the carbon fiber spoke to deviate from. Through this anti-disengaging structure for carbon fiber spoke is firm with being connected between big footpath flange, carbon fiber spoke and the path flange, and joint strength is high.

Furthermore, the anti-falling structure is a structure which is gradually thinned from the middle to two sides or gradually thickened from the middle to two sides.

Furthermore, the large-diameter flange and the small-diameter flange are fixed on the carbon fiber shell base in a gluing mode respectively.

The utility model also discloses a bicycle hub, including flower-drum axis, wheel rim and foretell carbon fiber flower-drum spoke integrated configuration, carbon fiber shell base rotate through the bearing of establishing at its inboard both ends and install the flower-drum axis outside, the carbon fiber spoke keep away from big footpath flange or path flange one end with wheel rim fixed connection.

Furthermore, an annular cavity is formed in the rim, a fourth spoke hole is formed in one side wall face, connected with the carbon fiber spokes, of the rim, threads are formed in the end portion, connected with the rim, of one end of each carbon fiber spoke, and the carbon fiber spokes are inserted into the fourth spoke holes and locked and fixed through spoke caps arranged in the annular cavity.

The utility model discloses following beneficial effect has: 1. the carbon fiber spokes and the large-diameter flange and the carbon fiber spokes and the small-diameter flange are integrally formed, and the anti-falling structure is combined, so that the connecting strength of the bicycle hub and the spokes is improved, and the overall quality of the product is better; 2. the carbon fiber spokes and the large-diameter flange and the carbon fiber spokes and the small-diameter flange are high in connection strength, and the carbon fiber spokes are high in rigidity, so that the number of the spokes required by the whole structure is small, and the material cost and the processing cost can be reduced to a certain extent; 3. adopt the carbon fiber flange to replace the metal flange to the carbon fiber shell base replaces the metal shell base, can lighten structural weight, avoids the electrochemical corrosion problem between metal flange and the carbon fiber spoke, between carbon fiber flange and the metal shell base, reduces the influence to product life.

Drawings

FIG. 1 is a sectional view of the carbon fiber hub spoke combination structure of the present invention;

FIG. 2 is a partially enlarged view of the portion I in FIG. 1;

FIG. 3 is a perspective view of a large diameter flange configuration;

FIG. 4 is a schematic view of a minor-diameter flange;

FIG. 5 is a schematic view of a carbon fiber spoke construction;

FIG. 6 is a schematic view of an integral structure of a large-diameter flange and a carbon fiber spoke;

FIG. 7 is a schematic view of an integrally formed structure of a small-diameter flange and a carbon fiber spoke;

FIG. 8 is a schematic structural view of a bicycle hub according to the present invention;

FIG. 9 is a cross-sectional view of the bicycle hub structure of the present invention;

fig. 10 is a partially enlarged view of the part II in fig. 9.

Description of the main component symbols: 1. a carbon fiber shell base; 2. a large-diameter flange; 3. a first annular body; 4. a spoke hole group; 5. a first spoke hole; 6. a second spoke hole; 7. a small-diameter flange; 8. a second annular body; 9. a pin; 10. a third spoke hole; 11. carbon fiber spokes; 12. a drop-out prevention structure; 13. a hub middle shaft; 14. a bearing; 15. a rim; 16. an annular cavity; 17. a fourth spoke hole; 18. a spoke cap; alpha, and an obtuse included angle formed by the axes of the first spoke hole and the second spoke hole which are opposite to the first spoke hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Example one

As shown in fig. 1-7, the carbon fiber hub spoke combination structure includes a hollow tubular carbon fiber shell base 1, a large-diameter flange 2 and a small-diameter flange 7 made of carbon fiber composite material and respectively fixed at two ends of the outside of the carbon fiber shell base 1, and a plurality of carbon fiber spokes 11 respectively uniformly distributed along the outside circumference of the large-diameter flange 2 and the small-diameter flange 7, wherein one end of the carbon fiber spokes 11 is integrally formed with the large-diameter flange 2 or the small-diameter flange 7.

The large-diameter flange 2 comprises a first annular body 3 and a plurality of spoke hole groups 4 uniformly distributed along the circumferential direction of the first annular body 3, wherein each spoke hole group 4 comprises a first spoke hole 5 and a second spoke hole 6, and an included angle alpha formed by the axes of the first spoke hole 5 and the second spoke hole 6 opposite to the first spoke hole 5 is an obtuse angle. An obtuse included angle alpha formed by the axes of the first spoke hole 5 and the second spoke hole 6 opposite to the first spoke hole is 130-135 degrees.

The small-diameter flange 7 comprises a second annular body 8 and a plurality of pins 9 which are integrally formed with the second annular body 8 and uniformly distributed along the circumferential direction of the outer wall of the second annular body 8, third spoke holes 10 are formed in one ends, far away from the second annular body 8, of the pins 9, and one ends of carbon fiber spokes 11 extend into the third spoke holes 10 and are integrally formed with the pins 9. The number of third spoke openings 10 is 4 or 6 or 8.

One end of the carbon fiber spoke 11, which is integrally formed with the large-diameter flange 2 or the small-diameter flange 7, is provided with a separation-preventing structure 12 for preventing the carbon fiber spoke 11 from separating out. The slip-off preventing structure 12 is a structure in which the middle is gradually thinned towards two sides or the middle is gradually thickened towards two sides. The large-diameter flange 2 and the small-diameter flange 7 are fixed on the carbon fiber shell base 1 respectively in a gluing mode.

The carbon fiber spoke 11 body with the anti-falling structure 12 is manufactured in advance through compression molding, and corresponding treatment such as coarsening, molding taper and the like is carried out on the carbon fiber spoke body.

The prefabricated carbon fiber spokes 11 are respectively formed with the large-diameter flange 2 and the small-diameter flange 7 in a secondary forming mode, and the anti-falling structures 12 on the carbon fiber spokes 11 are embedded into the first spoke holes 5, the second spoke holes 6 and the third spoke holes 10, so that the carbon fiber spokes 11 and the carbon fiber flanges which are tightly connected are integrally formed. The integral molding condition is as shown in fig. 6-7, the connection strength between the carbon fiber spoke 11 and the large-diameter flange 2 or the small-diameter flange 7 is high, and the quality of the integral structure is easy to guarantee. Moreover, because the connection strength is high and the rigidity of the carbon fiber spokes 11 is high, the number of spokes required is small, and the material cost and the processing cost are low.

Example two

On the basis of the above embodiments, as shown in fig. 8-10, a bicycle hub includes a hub middle axle 13, a rim 15 and the carbon fiber hub spoke combination structure mentioned in the first embodiment, the carbon fiber shell base 1 is rotatably mounted on the outer side of the hub middle axle 13 through bearings 14 provided at the two ends of the inner side of the carbon fiber shell base, and one end of the carbon fiber spoke 11 far away from the large-diameter flange 2 or the small-diameter flange 7 is fixedly connected with the rim 15.

An annular cavity 16 is formed in the rim 15, a fourth spoke hole 17 is formed in one side wall face, connected with the carbon fiber spokes 11, of the rim 15, threads are formed in one end portion, connected with the rim 15, of each carbon fiber spoke 11, and the carbon fiber spokes 11 are inserted into the fourth spoke holes 17 and are locked and fixed through spoke caps 18 arranged in the annular cavity 16.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a carbon fiber flower-drum spoke integrated configuration which characterized in that: the carbon fiber shell comprises a hollow tubular carbon fiber shell base, a large-diameter flange and a small-diameter flange which are made of carbon fiber composite materials and are fixedly arranged at two ends of the outer portion of the carbon fiber shell base respectively, and a plurality of carbon fiber spokes which are uniformly distributed along the circumferential direction of the outer sides of the large-diameter flange and the small-diameter flange respectively, wherein one end of each carbon fiber spoke is integrally formed with the large-diameter flange or the small-diameter flange.

2. The carbon fiber hub spoke composite structure of claim 1, wherein: the large-diameter flange comprises a first annular body and a plurality of spoke hole groups uniformly distributed along the circumferential direction of the first annular body, each spoke hole group comprises a first spoke hole and a second spoke hole, and an included angle formed by the axes of the first spoke hole and the second spoke hole opposite to the first spoke hole is an obtuse angle.

3. The carbon fiber hub spoke composite structure of claim 2, wherein: the included angle of an obtuse angle formed by the axes of the first spoke hole and the second spoke hole opposite to the first spoke hole is 130-135 degrees.

4. The carbon fiber hub spoke composite structure of claim 1, wherein: the small-diameter flange comprises a second annular body and a plurality of pins which are integrally formed with the second annular body and evenly distributed along the circumferential direction of the outer wall of the second annular body, third spoke holes are formed in one ends, far away from the second annular body, of the pins, and one ends of the carbon fiber spokes stretch into the third spoke holes and are integrally formed with the pins.

5. The carbon fiber hub spoke composite structure of claim 4, wherein: the number of third spoke openings is 4 or 6 or 8.

6. The carbon fiber hub spoke composite structure of claim 1, wherein: and one end of the carbon fiber spoke, which is integrally formed with the large-diameter flange or the small-diameter flange, is provided with a release stopping structure for preventing the carbon fiber spoke from releasing.

7. The carbon fiber hub spoke composite structure of claim 6, wherein: the anti-falling structure is a structure which is gradually thinned from the middle to two sides or gradually thickened from the middle to two sides.

8. The carbon fiber hub spoke composite structure of claim 1, wherein: the large-diameter flange and the small-diameter flange are fixed on the carbon fiber shell base in a gluing mode respectively.

9. A bicycle hub, comprising: the hub comprises a hub middle shaft, a rim and a carbon fiber hub spoke combined structure as claimed in any one of claims 1 to 8, wherein the carbon fiber shell base is rotatably installed on the outer side of the hub middle shaft through bearings arranged at two ends of the inner side of the carbon fiber shell base, and one end, far away from the large-diameter flange or the small-diameter flange, of the carbon fiber spoke is fixedly connected with the rim.

10. The bicycle hub according to claim 9, wherein: the wheel rim is internally provided with an annular cavity, a fourth spoke hole is formed in one side wall surface of the wheel rim, which is connected with the carbon fiber spokes, threads are arranged at the end part of one end, which is connected with the wheel rim, of the carbon fiber spokes, and the carbon fiber spokes are inserted into the fourth spoke hole and are locked and fixed through spoke caps arranged in the annular cavity.