CN218021035U

CN218021035U - Joint design, bicycle wheel and bicycle of carbon fiber spoke

Info

Publication number: CN218021035U
Application number: CN202222600054.4U
Authority: CN
Inventors: 李乃红; 黄美云
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-13
Anticipated expiration: 2032-09-29

Abstract

The utility model provides a joint structure of carbon fiber spoke, this joint structure is used for installing the spoke on rim/flower-drum, including first joint, the second connects and anticreep component, first joint is used for connecting rim/flower-drum, the second connects and is connected with the cooperation of first joint, the second connects has the through-hole, the through-hole at least part forms the first bell mouth that the diameter tapers from preceding back, the anticreep component is spliced along circumference by two arc antiskid sheets at least to form the hollow anticreep component of inner chamber, the inner chamber of anticreep component at least part forms the diameter from preceding back tapering hole, the first toper portion and the second toper hole shape size of spoke front end are unanimous, and the centre gripping is in second toper hole, the second toper portion that the anticreep component outer peripheral wall formed is unanimous with first bell mouth shape size, and lock in first bell mouth, in order to realize that the spoke passes through anticreep component and second joint and is connected with first joint. The utility model discloses a dual fixed knot constructs, further improves the joint strength of its junction.

Description

Joint design, bicycle wheel and bicycle of carbon fiber spoke

Technical Field

The utility model relates to an automobile-used spoke field, in particular to joint design, proper motion wheel and bicycle of carbon fiber spoke.

Background

The parts of bicycle, motorcycle and wheelchair mainly are the wheelset that flower-drum, rim and spoke are constituteed, and wherein the rim is connected to the one end of spoke, and the flower-drum is connected to the other end, and the spoke has the effect that increases intensity, supports the tire, can also guarantee the stability of bicycle, motorcycle or wheelchair through the elasticity of adjusting the spoke, and traditional spoke mainly is carbon steel or stainless steel material and makes, and weight is heavy, with high costs and production efficiency hangs down. At present, some carbon fiber spokes have appeared on the market, and the carbon fiber spoke is usually with the tooth cap and the cap head of metal material nested respectively to the both ends of carbon fiber spoke body, then fixes through the veneer mode for tooth cap and cap head are together fixed with the carbon fiber spoke body, but all are higher to the adhesive strength requirement of gluing technique and adhesive, and still have the risk of coming unstuck, and then influence carbon fiber spoke's stability in use and security.

In view of the above, the present inventors have made extensive studies on the above-mentioned drawbacks of the prior art, and have made this invention.

Disclosure of Invention

The utility model discloses a first aim at a carbon fiber spoke's joint design through the cooperation between the mechanical structure, makes the carbon fiber spoke install more firmly on wheel rim/flower-drum.

A second object of the present invention is to provide a bicycle wheel having the above-mentioned joint structure.

A third object of the present invention is to provide a bicycle comprising the above bicycle wheel.

To achieve the first object, a joint structure of a carbon fiber spoke for mounting the carbon fiber spoke on a rim/hub includes:

a first joint for connecting a rim/hub;

the second joint is matched and connected with the first joint and is provided with a through hole, a first tapered hole is formed in at least one part of the through hole, and the diameter of the first tapered hole is gradually reduced from front to back;

the anti-falling component is formed by splicing at least two arc-shaped anti-falling sheets along the circumferential direction so as to form an anti-falling component with a hollow inner cavity, the inner cavity of the anti-falling component at least partially forms a second conical hole, and the diameter of the second conical hole is gradually reduced from front to back; a first conical part is formed at the front end of the carbon fiber spoke, the maximum diameter D2 of the first conical part is not more than the minimum diameter D1 of the first conical hole, and the shape and the size of the first conical part are consistent with those of the second conical hole; the peripheral wall of the anti-falling component forms a second conical part, and the second conical part is consistent with the shape and the size of the first conical hole;

the first conical part is clamped in the second conical hole of the anti-falling component, the through hole of the second joint is matched and connected with the first joint, the anti-falling component is buckled in the first conical hole, and the carbon fiber spoke is connected with the first joint by the anti-falling component and the second joint.

Adopt above-mentioned design, the front end through the carbon fiber spoke closely cooperates with the anticreep component, and the anticreep component closely cooperates with the second joint simultaneously to when realizing that the second joint is connected with the first joint cooperation, the carbon fiber spoke relies on anticreep component and second joint and first articulate. The joint structure adopts a double-fixing structure, so that the connecting strength of the joint is further improved, the risk that each joint and the carbon fiber spoke fall off due to degumming when an adhesive is used is effectively avoided, and the use stability and the safety of a carbon fiber spoke product are greatly improved; simultaneously the diameters of the first taper hole and the second taper hole are gradually reduced from front to back, so that the bonding strength of the anti-falling component and the carbon fiber spoke and the bonding strength of the second joint and the anti-falling component are improved, the anti-falling component is pulled more and more tightly under the action of a pulling force, and the tensile strength is greatly improved.

During installation: first, the first joint is connected to the rim/hub; secondly, the carbon fiber spokes are inserted into the through holes of the second joint from back to front and extend outwards; thirdly, the arc-shaped anti-slip sheets are spliced circumferentially around the carbon fiber spoke so as to enable the first conical part of the carbon fiber spoke to be tightly matched with the second conical hole; fourthly, the second joint is pushed forwards until the first taper hole of the second joint is tightly matched with the second taper part of the anti-falling component; fifthly, the second joint is fixedly connected with the first joint, and the carbon fiber spoke is installed on the rim/hub.

To achieve the second objective mentioned above, a bicycle wheel comprises the joint structure mentioned above for connecting the carbon fiber spokes to the rim/hub.

To achieve the third object, a bicycle includes the bicycle wheel.

Drawings

The detailed description, given as a non-limiting example, better explains what the invention includes and can be implemented, and moreover, refers to the accompanying drawings, in which:

fig. 1 is an exploded view of the joint structure of the present invention;

FIG. 2 is a sectional view of the joint structure of the present invention;

fig. 3 is a cross-sectional view of a second joint of the present invention;

FIG. 4 is a schematic view of the anti-slip member of the present invention comprising two arc-shaped anti-slip sheets;

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be understood that the directions of the terms "front" and "back" correspond to the distance between the second joint, the anti-separation member, the carbon fiber spoke and the first joint, the "front" is one side close to the first joint, and the "back" is one side far away from the first joint.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 4, a joint structure of a carbon fiber spoke 100 for mounting the carbon fiber spoke 100 on a rim/hub includes:

the embedded joint 4 is embedded into a rim or a hub, the embedded joint 4 is provided with a mounting hole 41 penetrating through, and the inner peripheral wall of the mounting hole 41 forms a fourth threaded part 411.

The first joint 1, in this example, the first joint 1 is a stud bolt, that is, the front end and the rear end of the outer peripheral wall of the first joint 1 are respectively formed with a first thread part 11 and a second thread part 12, and the first thread part 11 and the fourth thread part 411 are screwed with each other, so that the first joint 1 is fixedly connected to the embedded joint 4, thereby realizing that the first joint 1 is connected to a rim or a hub through the embedded joint 4.

A second joint 2, the second joint 2 having a through hole 21, the through hole 21 forming a third threaded portion 23 and a first tapered hole 22 in this order from the front to the rear, the first tapered hole 22 having a diameter gradually decreasing from the front to the rear. The third thread part 23 of the second joint 2 is screwed with the second thread part 12 of the first joint 1, so that the second joint 2 and the first joint 1 are fixedly connected with each other.

Referring to fig. 4, the retaining member 3 is formed by splicing two arc-shaped anti-slip sheets 31 along the circumferential direction to form the cylindrical retaining member 3 with a hollow inner cavity 32, the inner cavity 32 at least partially forms a second tapered hole 33, and the diameter of the second tapered hole 33 gradually decreases from the front to the back. The front end of the carbon fiber spoke 100 forms a first conical part 101, the maximum diameter D2 of the first conical part 101 is not more than the minimum diameter D1 of the first conical hole 22, and the shapes and the sizes of the first conical part 101 and the second conical hole 33 are consistent. The outer peripheral wall of the retaining member 3 forms a second tapered portion 34, and the second tapered portion 34 conforms to the shape and size of the first tapered hole 22. The first tapered portion 101 is clamped in the second tapered hole 33 of the retaining member 3, the third thread portion 23 of the second joint 2 is screwed with the second thread portion 12 of the first joint 1, the retaining member 3 is locked in the first tapered hole 22, and the carbon fiber spoke 100 is connected to the first joint 1 by the retaining member 3 and the second joint 2.

Adopt above-mentioned design, the front end through carbon fiber spoke 100 closely cooperates with anticreep component 3, and anticreep component 3 closely cooperates with second joint 2 simultaneously to when realizing that second joint 2 is connected with the cooperation of first joint 1, carbon fiber spoke 100 relies on anticreep component 3 and second joint 2 to be connected with first joint 1. The joint structure adopts a double-fixing structure, so that the connecting strength of the joint is further improved, the risk that joints and the carbon fiber spoke 100 fall off due to degumming when an adhesive is used is effectively avoided, and the use stability and the safety of the carbon fiber spoke 100 product are greatly improved; meanwhile, the diameters of the first conical hole 22 and the second conical hole 33 are gradually reduced from front to back, so that the bonding strength of the anti-falling component 3 and the carbon fiber spoke 100 and the bonding strength of the second joint 2 and the anti-falling component 3 are improved, the anti-falling component is more and more tightened under the action of tensile force, and the tensile strength is greatly improved.

During installation: the first thread part 11 of the first joint 1 and the fourth thread part 411 of the embedded joint 4 are in threaded connection; secondly, the carbon fiber spoke 100 is inserted into the through hole 21 of the second joint 2 from back to front and extends outwards; thirdly, each arc-shaped anti-slip sheet 31 is spliced circumferentially around the carbon fiber spoke 100 so as to tightly fit the first conical part 101 of the carbon fiber spoke 100 with the second conical hole 33; fourthly, the second joint 2 is pushed forward until the first tapered hole 22 of the second joint 2 is tightly fitted with the second tapered portion 34 of the retaining member 3; fifthly, the third thread part 23 of the second joint 2 is screwed with the second thread part 12 of the first joint 1, so that the carbon fiber spoke 100 is mounted on the rim/hub.

Preferably, the taper angle α ∈ [ 1 °,2.5 ° ] of the first tapered hole (22) and the taper angle β ∈ [ 1 °,2.5 ° ] of the second tapered hole (33). By the design, the processing and the manufacturing are convenient, and the connection position is more stable.

The utility model also discloses a bicycle wheel, including foretell joint design, this joint design is used for realizing being connected of carbon fiber spoke and wheel rim/flower-drum.

The utility model discloses a bicycle is again revealed, it includes foretell bicycle wheel.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A joint structure of a carbon fiber spoke for mounting the carbon fiber spoke (100) on a rim/hub, comprising:

a first joint (1), said first joint (1) being intended to connect a rim/hub;

the second joint (2), the second joint (2) is matched and connected with the first joint (1), the second joint (2) is provided with a through hole (21), the through hole (21) at least partially forms a first conical hole (22), and the diameter of the first conical hole (22) is gradually reduced from front to back;

the anti-falling component (3) is formed by splicing at least two arc-shaped anti-falling sheets (31) along the circumferential direction to form the anti-falling component (3) with a hollow inner cavity (32), at least part of the inner cavity (32) of the anti-falling component (3) forms a second tapered hole (33), and the diameter of the second tapered hole (33) is gradually reduced from front to back; the peripheral wall of the retaining member (3) forms a second tapered portion (34), and the second tapered portion (34) conforms to the shape and size of the first tapered hole (22);

the front end of the carbon fiber spoke (100) forms a first conical part (101), the maximum diameter D2 of the first conical part (101) is less than or equal to the minimum diameter D1 of the first conical hole (22), and the shape and the size of the first conical part (101) are consistent with those of the second conical hole (33);

the first conical part (101) is clamped in a second conical hole (33) of the anti-falling component (3), the through hole (21) of the second joint (2) is matched and connected with the first joint (1), the anti-falling component (3) is buckled in the first conical hole (22), and the carbon fiber spoke (100) is connected with the first joint (1) depending on the anti-falling component (3) and the second joint (2).

2. The joint structure of carbon fiber spokes as claimed in claim 1, wherein: the taper angle alpha epsilon (1 degree and 2.5 degrees) of the first conical hole (22) and the taper angle beta epsilon (1 degree and 2.5 degrees) of the second conical hole (33) are respectively arranged in the two conical holes.

3. The carbon fiber spoke joint structure of claim 1, wherein: the first connector (1) is a stud bolt, a first thread part (11) and a second thread part (12) are formed at the front end and the rear end of the outer circumferential wall of the first connector (1) respectively, and the first thread part (11) is used for being connected to a rim/hub so as to realize that the first connector (1) is connected to the rim/hub; and a third thread part (23) matched with the second thread part (12) is formed at the front end of the through hole (21) of the second joint (2), and the second joint (2) is matched and connected with the first joint (1) through the matching of the second thread part (12) and the third thread part (23).

4. A carbon fiber spoke joint structure as defined in claim 3 wherein: an embedded joint (4) is arranged in the rim/hub, the embedded joint (4) is provided with a through mounting hole (41), and a fourth threaded portion (411) matched with the first threaded portion (11) is formed on the inner peripheral wall of the mounting hole (41).

5. A bicycle wheel, characterized in that: the joint structure including the carbon fiber spoke according to any one of claims 1 to 4, which is used for realizing the connection of the carbon fiber spoke (100) with the rim/hub.

6. A bicycle, characterized in that: which comprises a bicycle wheel as claimed in claim 5.