CN221476582U - Metal piece, carbon fiber spoke, rim assembly, wheel and bicycle - Google Patents

Abstract

The utility model provides a metal piece, carbon fiber spokes, a rim assembly, a wheel and a bicycle. The metalwork sets up the link at carbon fiber spoke body and rim assembly respectively to and the link of carbon fiber spoke body and flower-drum, and the metalwork includes the connecting piece body, and connecting piece body one end has the through-hole that two at least different faces set up. According to the utility model, the metal piece and the spoke are reasonably designed, and the through holes arranged on different surfaces are utilized on the metal piece to be matched with the high-modulus carbon fiber to be connected with the carbon fiber spoke, so that effective tension force can be formed, and the tensile strength and the torsional strength can be effectively ensured. In the carbon fiber spoke design, utilize the metalwork to support in for this connection can bear bigger pulling force and spoke tip is not fragile, connects firm reliable.

Description

Metal piece, carbon fiber spoke, rim assembly, wheel and bicycle

Technical Field

The utility model relates to the technical field of vehicle wheel sets, in particular to a metal piece, carbon fiber spokes, a rim assembly, a wheel and a bicycle.

Background

In the production and assembly of wheel sets for bicycles, motorcycles and wheelchairs, a complete wheel set is formed by a hub, a rim assembly and spokes. Carbon fiber is a high strength high modulus fiber with carbon content above 90%, which is used for producing spokes due to its excellent material properties, so as to ensure the strength of the spokes and realize the lightweight development of the spokes. Currently, existing carbon fiber spokes and rim assemblies are commonly connected using connectors.

Currently, the existing connecting piece is shown as a spoke nipple connecting piece, a high-strength high-modulus spoke and rim assembly disclosed in CN202223022010.4, and comprises an abutting section abutting against an assembly groove of a hub or rim assembly, a connecting section for connecting the spoke and a limiting section arranged between the two. The periphery of the limiting section is provided with a bulge used for limiting axial rotation, and the bulge is used for propping and limiting when the spoke joint connecting piece axially rotates relative to the assembly groove of the hub. The utility model can be used for fixing and preventing torsion on the joint connector model, which does not influence the strength of the spoke and the joint connector and solves the spoke deflection problem.

The fixed anti-torsion structure design of the connecting piece aims at limiting anti-torsion between the connecting piece and the corresponding assembly groove, and no other effective fixed connection design and anti-torsion design exist between the connecting piece and the spoke. How to ensure the tensile strength between the connecting piece and the spoke and ensure enough torsional strength between the connecting piece and the spoke during the installation and operation of the wheel set becomes the key point of the design of the connecting piece, namely the wheel set.

Disclosure of utility model

The utility model aims to solve the technical problems that: in order to overcome the defects in the prior art, the utility model provides a metal piece, a carbon fiber spoke, a rim assembly, a wheel and a bicycle, wherein the connection positioning between the connecting piece and the spoke is enhanced in the installation and operation process, and the connecting piece and the spoke are ensured to have enough tensile strength and torsional strength.

The technical scheme adopted for solving the technical problems is as follows: a metal piece is used for connecting a rim assembly and a carbon fiber spoke body and comprises a connecting piece body, wherein one end of the connecting piece body is provided with at least two through holes arranged on different surfaces.

In the scheme, the connecting piece adopts the metalwork to make, when the connecting piece is connected with the spoke, utilize two through-holes, use the carbon fiber carbon silk of high strength to pass behind the through-hole, the carbon silk extends to whole carbon fiber spoke, carbon fiber forms complete circuit, guaranteed the continuity of carbon fiber material, utilize carbon fiber material with the metalwork firm parcel and with carbon fiber spoke an organic whole, after solidifying through epoxy, can form effectual tensioning force, effectively guaranteed the tensile strength of connecting piece and carbon fiber spoke. Meanwhile, the two through holes are arranged on different surfaces, and the different surfaces can ensure that the wrapped carbon fiber wires are arranged in at least two directions, so that the tensile strength is ensured, and meanwhile, the connection mode is more effectively ensured to have enough torsional strength.

Preferably, the metal piece comprises two through holes, the two through holes are distributed in sequence along the axial direction of the connecting piece body, and the axial lines of the two adjacent through holes form an included angle of 90 degrees on the radial section of the connecting piece body in a projection mode. The two through holes are different in surface and are vertically designed, so that the torsional strength in two directions is further effectively balanced.

Further, the end part of the connecting piece body provided with the through hole is of a cone structure, the through hole far away from the vertex of the cone structure is a front through hole, the through hole near the vertex of the cone structure is a side through hole, and the two ends of the front through hole are connected with the inclined plane between the two ends of the cone structure. Through the differentiation of the positive side, the positive side of the spoke which is connected subsequently can be correspondingly used, the positioning of the spoke and the connecting piece is facilitated, and the angle steering positioning in the spoke installation and connection process is facilitated.

Furthermore, the connecting part body outer peripheral surface of the metal part at the connecting end of the carbon fiber spoke body and the rim assembly corresponds to the connecting position of the cone structure, the end face of the corresponding front through hole is concavely provided with a front plane groove parallel to the end face, and the end face of the corresponding side through hole is concavely provided with a side plane groove parallel to the end face. The design of two plane grooves corresponds the positive side angle of spoke on the one hand, and on the other hand also is convenient for when the metalwork is connected with the rim subassembly, can the assembly groove of the corresponding position of rim subassembly carry out the screens cooperation, has still further improved the torsional strength of connection. The end part of the connecting piece body of the metal piece of the connecting end of the carbon fiber spoke body and the hub is far away from the through hole to form a conical table structure, and the outer diameter of the conical table structure is gradually increased along the direction far away from the through hole. Adopt the connecting piece body of toper platform structure, the area of the atress of conical surface is bigger, can bear bigger pulling force, adopts the carbon fiber spoke body of this metalwork design other outsourcing materials to be carbon fiber, increases inside tensile resistance through the design of metalwork, can effectively improve the tensile strength of carbon fiber spoke body, avoids full carbon fiber to be drawn and explodes.

In order to facilitate the carbon fiber carbon wire to pass through the through hole and effectively locate and guide with the spoke, on the outer peripheral surface of the cone structure of the connecting piece body, the positions corresponding to the front through hole and the side through hole are also concavely provided with caulking grooves, one end of the bottom of each caulking groove is connected with the corresponding through hole, and the other end of each caulking groove points to the end of the far rim assembly of the connecting piece body. The caulking groove is used for placing carbon fiber wires to provide guiding and placing space.

The utility model provides a carbon fiber spoke, sets up in the wheelset, one end is connected with rim assembly, and the other end is connected with the flower-drum, including carbon fiber spoke body and two metalwork, the metalwork adopt foretell metalwork, two metalwork have the tip terminal surface direction of through-hole relatively, carbon fiber spoke body one end be near rim end, one end be the flower-drum link, the near rim end of carbon fiber spoke body is fixed with a metalwork through carbon fiber silk, the flower-drum end of carbon fiber spoke body then fixes the metalwork of flower-drum end and the metalwork of near rim end back overcoat cladding outside the metalwork of flower-drum end through carbon fiber silk.

Preferably, the end part of the metal piece corresponding to the flower-drum connecting end of the carbon fiber spoke body, which is far away from the through hole, is of a conical table structure, the outer diameter of the conical table structure is gradually increased along the direction far away from the through hole, the flower-drum connecting end of the carbon fiber spoke body is correspondingly wrapped outside the metal piece on the side, and the inner wall of the flower-drum connecting end of the carbon fiber spoke body is of a conical inner wall matched with the shape of the metal piece. Through the cooperation of conical surface, guaranteed spoke internal connection reliability, the conical surface makes the two area of stress bigger, can bear bigger pulling force, has increased the tensile strength through containing the metalwork for this end of spoke can adopt conventional small-end design, need not to design for the toper for increasing tensile, then need not to set up the flower-drum hole as special bell mouth.

The utility model further provides a rim assembly, which comprises a hub assembly, a rim assembly and spoke assemblies, wherein the spoke assemblies adopt the carbon fiber spokes.

The utility model further provides a wheel, comprising a tire and the rim assembly.

The utility model further provides a bicycle comprising the wheel.

The metal piece, the carbon fiber spoke, the rim assembly, the wheel and the bicycle have the beneficial effects that the metal piece and the spoke are reasonably designed, through holes arranged on different surfaces of the metal piece are utilized, and the metal piece is matched with high-modulus carbon fiber to be connected with the carbon fiber spoke, so that effective tension force can be formed, and the tensile strength and the torsional strength can be effectively ensured. Meanwhile, in the connection of the carbon fiber spoke and the hub, the bearing area is enlarged by utilizing conical surface matching, so that the connection can bear larger tensile force, the end part of the spoke is not easy to damage or break off, and the connection is stable and reliable.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a perspective view of a metal piece of the attachment end of the carbon fiber spoke body to the rim assembly in accordance with the present utility model.

FIG. 2 is a front view of a metal piece of the attachment end of the carbon fiber spoke body to the rim assembly in accordance with the present utility model.

FIG. 3 is a top view of a metal piece of the attachment end of the carbon fiber spoke body to the rim assembly in accordance with the present utility model.

Fig. 4 is a schematic structural view of a metal member at the connection end of the carbon fiber spoke body and the hub according to the present utility model.

FIG. 5 is a schematic illustration of a carbon fiber spoke threading combination of the present utility model.

Fig. 6 is a perspective view of a carbon fiber spoke of the present utility model after installation of a metal piece.

Fig. 7 is an enlarged schematic view at a in fig. 6.

Fig. 8 is a perspective view of the rim assembly of the present utility model.

In the figure, 1, a threaded section 2, a middle section 3, a cone structure 4, a front plane groove 5, a front through hole 6, a side through hole 7, a caulking groove 8, a side plane groove 9, a connecting piece body 10, a carbon fiber spoke body 11, a cone structure 12, a cone table structure 13, carbon fiber wires 14, a hub assembly 15, a rim assembly 16 and a spoke assembly.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only those features which are relevant to the utility model, and orientation and reference (e.g., up, down, left, right, etc.) may be used solely to aid in the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

A metal piece, as shown in fig. 1 to 3, is a connecting piece provided at a connecting end of the carbon fiber spoke body 10 and the rim assembly in the embodiment of the present utility model.

The metal piece comprises a connector body 9. The connector body 9 comprises an integrally formed threaded section 1, an intermediate section 2 and a conical section in the direction from the rim assembly to the hub. The connecting piece body 9 is made of metal, and can be manufactured by selecting materials such as titanium alloy, aluminum, steel and the like according to requirements.

The threaded section 1 is the end of the connector body 9 near the rim assembly, and the section adopts a threaded design, so that the detachable connection with the rim assembly can be realized through threaded fit.

The cone section of the connector body 9 is the distal rim assembly end, and the cone section is the cone structure 3. Two through holes which are arranged on different surfaces are penetrated on the cone structure 3.

Specifically, in this embodiment, the two through holes are sequentially distributed along the axial direction of the connector body 9, and the axial direction of the through holes is poked to the center line of the cone structure 3, which is the front through hole 5 and the side through hole 6 respectively. The through holes far away from the vertex of the cone structure 3 are front through holes 5, the through holes near the vertex of the cone structure 3 are side through holes 6, and two ends of the front through holes 5 are connected with the inclined planes between the vertices of the cone structure 3. The axes of the front through holes 5 and the side through holes 6 are projected at an angle of 90 ° on the radial cross section of the cone structure 3.

When the connector body 9 is combined with the spoke, after the high-modulus carbon fiber T1100 passes through the through hole, the carbon fiber extends to the whole carbon fiber spoke, so that the continuity of the carbon fiber material is ensured, the carbon fiber shape and the carbon fiber spoke form a complete loop, then after being solidified by epoxy resin, a tension force is formed, the metal piece is firmly wrapped on the carbon fiber material by the carbon fiber material, the metal piece is prevented from being separated from the carbon fiber spoke, and the tensile strength of the carbon fiber spoke is ensured. The front through holes 5 and the side through holes 6 in the embodiment cooperate with carbon fibers to jointly ensure the tensile strength of the carbon fiber spokes.

Simultaneously, the front through hole 5 is different from the side through hole 6 and is vertical, and then the two through holes are respectively fastened from the front direction and the side direction in the process of connecting and fastening with the carbon fiber spokes, and are fastened from two mutually vertical directions, so that the torsional strength of the carbon fiber spokes is ensured, and the carbon fiber spokes are ensured to have enough torsional strength in the installation process and the wheel group movement process.

On the basis, in order to facilitate the carbon fiber carbon wire to pass through the through hole and effectively locate and guide with the spoke, on the outer peripheral surface of the conical structure 3 of the connecting piece body 9, the positions corresponding to the front through hole 5 and the side through hole 6 are also inwards concave to be provided with the caulking groove 7, the bottom surface of the caulking groove 7 is a plane, and the plane is parallel to the radial section of the corresponding through hole. One end of the bottom of the caulking groove 7 is connected with the corresponding through hole, and the other end points to the far rim component end of the connecting piece body 9. The caulking groove 7 provides guiding and placing space for placing the carbon fiber filaments 13.

For the middle section 2, the connecting position of the outer peripheral surface of the connecting piece body 9 corresponding to the cone structure 3, namely the position corresponding to the middle section 2, the end face corresponding to the front through hole 5 is concavely provided with a front plane groove 4 parallel to the end face, and the end face corresponding to the side through hole 6 is concavely provided with a side plane groove 8 parallel to the end face. The design of two plane grooves corresponds the positive side angle of spoke on the one hand, and on the other hand also is convenient for when the metalwork is connected with the rim subassembly, can the assembly groove of the corresponding position of rim subassembly carry out the screens cooperation, has still further improved the torsional strength of connection. Meanwhile, through the distinction of the positive side surfaces, the positive side surfaces of the spokes connected subsequently can be correspondingly positioned, so that the spokes and the connecting piece can be positioned conveniently, the angle steering positioning in the spoke installation and connection process can be facilitated, and the spokes can be installed according to aerodynamic design and fixed angles conveniently.

A metal piece, as shown in fig. 4, is a connecting piece provided at the connecting end of the carbon fiber spoke body 10 and the hub according to the embodiment of the present utility model.

The connector body of the metal piece comprises a cone segment and a cone table structure in the direction from the rim assembly to the hub.

The cone section of the connecting piece at the connecting end of the hub is the same as the cone section of the connecting piece at the rim end in structure and is of a cone structure 3. Two through holes which are arranged on different surfaces are penetrated on the cone structure 3. The difference is that the connecting piece of the flower-drum connecting section is of a conical table structure at the position corresponding to the connection position of the flower-drum. The outer diameter of the conical table structure gradually increases along the direction away from the through hole. Corresponding to the cone structure 3 and the cone table structure, the inner wall of the connecting end of the carbon fiber spoke body 10 and the hub is a cone inner wall 11 matched with the shape of the connecting piece.

This metalwork appearance and the conical surface cooperation of toper inner wall 11 have guaranteed the metalwork and spoke, spoke and flower-drum's connection reliability, compare ordinary face of cylinder, the conical surface cooperation is in the connection of metalwork and spoke, and the area of force between the two is bigger, can bear bigger pulling force, adopts the carbon fiber spoke body other outsourcing materials of this metalwork design to be carbon fiber, increases inside tensile resistance through the design of metalwork, can effectively improve the tensile strength of carbon fiber spoke body, avoids all carbon fiber to be pulled and explode.

The utility model also provides a carbon fiber spoke. The carbon fiber spokes are arranged in the wheel set, one end of each carbon fiber spoke is connected with the wheel rim assembly, and the other end of each carbon fiber spoke is connected with the hub. Specifically, the carbon fiber spoke comprises a carbon fiber spoke body and two metal pieces, wherein the metal pieces adopt the metal piece, the end faces of the two metal pieces with through holes are opposite in direction, one end of the carbon fiber spoke body 10 is a near-rim end, and one end of the carbon fiber spoke body is a hub connecting end. The near-rim end of the carbon fiber spoke body 10 is fixed with a metal piece through carbon fiber wires 13, and the hub end of the carbon fiber spoke body 10 is coated outside the metal piece of the hub end after the metal piece of the hub end is fixed with the metal piece of the near-rim end through the carbon fiber wires 13.

In this carbon fiber spoke connection combination, as shown in fig. 5, the left metal piece is a metal piece of the connection end of the carbon fiber spoke body 10 and the rim assembly, and the right metal piece is a metal piece of the connection end of the carbon fiber spoke body 10 and the hub. Firstly, two metal pieces are correspondingly arranged according to the combination positions of the carbon fiber rim assembly and the hub, and the directions of the vertexes of the cone structures 3 are opposite. The threading is then performed using carbon fiber filaments 13, and in this embodiment, the carbon fiber filaments 13 are preferably used as high modulus carbon fibers T1100. And the carbon fiber wires 13 are used for threading corresponding to the front through holes 5 and the side through holes 6 of the two metal pieces respectively, so that a complete loop of 'metal pieces-carbon fiber wires 13-metal pieces' is formed. After the spoke body of the carbon fiber spoke is correspondingly wrapped with the threading structure, the epoxy resin is utilized for curing, and then tension is formed.

In the existing carbon fiber spoke, when combined with the hub, the connecting end part of the conventional design is smaller, in order to avoid being exploded, the carbon fiber spoke of the connecting end part needs to be designed into a conical head, and the hub also needs to be correspondingly designed into a special hub matched with the conical head. Corresponding conical holes are formed in the special flower drum. In this embodiment, the metal piece is built in the carbon fiber spoke, and the tensile strength is increased by the metal piece, so that the tensile strength of the carbon fiber spoke is greatly improved. The design of the conical head is not needed at the joint, the tensile requirement can be met by adopting the conventional design and the universal flower-drum hole, and the corresponding conical head and conical hole are not needed to be manufactured by additionally opening a die. Of course, on the basis of the embodiment, the taper design can be further adopted at the connecting position, so that the tensile strength at the connecting position is further improved. As shown in fig. 6 and 7, the connection between the spoke and the hub is also suitable for conical surface matching, so that the stress area between the spoke and the hub is larger, larger pulling force can be born, the end part of the spoke is not easy to damage, and is not easy to break away from the hole of the hub, and the reliability of the carbon fiber spoke in the wheel set installation and combination is further improved.

As shown in fig. 8, the present utility model provides a rim assembly comprising a hub assembly, a rim assembly and spoke assemblies. Wherein, the spoke subassembly adopts the carbon fiber spoke that has above-mentioned metalwork.

The wheel comprises a tire and the rim assembly, wherein the rim assembly is correspondingly supported and arranged at the inner ring position of the tire.

The utility model relates to a bicycle, which comprises the wheel.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (10)

1. The utility model provides a metalwork sets up respectively in the link of carbon fiber spoke body (10) and rim assembly to and the link of carbon fiber spoke body (10) and flower-drum, its characterized in that: comprises a connecting piece body (9), wherein one end of the connecting piece body (9) is provided with at least two through holes which are arranged on different surfaces.

2. A metal part as in claim 1, wherein: the connecting piece body (9) comprises two through holes, the two through holes are distributed in sequence along the axis direction of the connecting piece body (9), and the axes of the two adjacent through holes are projected to form a 90-degree included angle on the radial section of the connecting piece body (9).

3. A metal part as in claim 2, wherein: the end part of the connecting piece body (9) provided with the through hole is a cone structure (3), the through hole far away from the vertex of the cone structure (3) is a front through hole (5), the through hole near the vertex of the cone structure (3) is a side through hole (6), and the two ends of the front through hole (5) are connected with the inclined plane between the vertices of the cone structure (3).

4. A metal part as in claim 3, wherein: the connecting part comprises a carbon fiber spoke body (10) and a connecting part body (9) of a metal part at the connecting end of a rim assembly, wherein the outer peripheral surface of the connecting part body corresponds to a cone structure (3), a front plane groove (4) parallel to the end surface is concavely arranged on the end surface corresponding to a front through hole (5), and a side plane groove (8) parallel to the end surface is concavely arranged on the end surface corresponding to a side through hole (6);

The end part of the connecting piece body (9) of the metal piece of the connecting end of the carbon fiber spoke body (10) and the hub, which is far away from the through hole, forms a conical table structure, and the outer diameter of the conical table structure gradually increases along the direction far away from the through hole.

5. A metal part as in claim 3, wherein: the connecting piece body (9) cone structure (3) on the outer peripheral face, the position department that corresponds openly through-hole (5) and side through-hole (6) still indent has caulking groove (7), caulking groove (7) bottom one end meet with corresponding through-hole, the far away rim subassembly end of the directional connecting piece body (9) of the other end.

6. Carbon fiber spoke sets up in the wheelset, and one end is connected with rim assembly, and the other end is connected its characterized in that with the flower-drum: the novel carbon fiber spoke comprises a carbon fiber spoke body (10) and two metal pieces, wherein the metal pieces are one metal piece according to any one of claims 1 to 5, the end face directions of the end parts of the two metal pieces with through holes are opposite, one end of the carbon fiber spoke body (10) is a near-rim end, the other end of the carbon fiber spoke body is a hub connecting end, the near-rim end of the carbon fiber spoke body (10) is fixed with one metal piece through a carbon fiber wire (13), and the hub end of the carbon fiber spoke body (10) is used for fixing the metal piece of the hub end and the metal piece of the near-rim end and then is covered outside the metal piece of the hub end through an outer sleeve.

7. A carbon fiber spoke as set forth in claim 6, wherein: the end part, far away from the through hole, of the metal piece corresponding to the flower-drum connecting end of the carbon fiber spoke body (10) is of a conical table structure, the outer diameter of the conical table structure is gradually increased along the direction far away from the through hole, the flower-drum connecting end of the carbon fiber spoke body (10) is correspondingly wrapped outside the metal piece on the side, and the inner wall of the flower-drum connecting end of the carbon fiber spoke body (10) is a conical inner wall (11) matched with the appearance of the metal piece.

8. A rim assembly, characterized in that: comprising a hub assembly, a rim assembly and a spoke assembly, said spoke assembly employing a carbon fiber spoke according to claim 7.

9. A wheel comprising a tyre, characterized in that: further comprising a rim assembly according to claim 8.

10. A bicycle, characterized in that: comprising a wheel as claimed in claim 9.