Spoke connecting piece

Abstract

The utility model discloses a spoke connecting piece. The connecting piece comprises a connecting piece body, the connecting piece body comprises a concave part for limiting a spoke body, and the concave part is arranged inside or outside the connecting piece body. According to the spoke structure, potential safety hazards caused by cracks are avoided, meanwhile, the spoke structure is rigidly connected with the tooth cap and the cap head and can be directly limited in the connecting pieces at the two ends through bending, and the connecting strength between the spoke and the connecting pieces at the two ends is enhanced.

Description

Technical Field

[0001] The present invention relates to the field of bicycle spokes, and in particular to a spoke connector. Background Art

[0002] Bicycle spokes, also called spokes, are straight sticks or steel bars that connect the hub (hub) and the rim in the wheel. They are composed of spokes and spoke caps (nuts) and play the role of connecting the hub (axle housing) and the rim.

[0003] The Chinese patent with publication number CN112092532A provides a method for making a carbon fiber spoke and a carbon fiber spoke, the method comprising the following steps: 1) rolling a carbon sand sheet into a rod, and respectively filling a foaming agent at least at both ends thereof; 2) inserting one end of the rod into a threaded cap that can be matched to connect to a wheel rim, and inserting the other end of the rod into a cap head that can be matched to connect to a hub, and the inner wall surface of the threaded cap and the inner wall surface of the cap head are respectively provided with a concave-convex structure; 3) curing the rod to form a carbon fiber spoke rod, and the outer wall surfaces at both ends of the carbon fiber spoke rod are respectively meshed with the inner wall surfaces of the threaded cap and the cap head. The present invention rolls a carbon sand sheet into a rod, and respectively fills a foaming agent at least at both ends thereof, and then fixes it with the threaded cap and the cap head by curing. The shortcoming in the cited document is that the lateral strength of the spokes made of carbon fiber is weak. When the bicycle rim rotates and is subjected to impact or cracks appear on the spokes, the spokes made of carbon fiber will break as a whole and can no longer provide support, affecting the safety of the bicycle.

[0004] PBO fiber has excellent modulus and can be bent during processing. When damaged, its material properties can also ensure rigidity and greater safety.

[0005] Therefore, a spoke and a connecting member are needed to improve the safety of the bicycle. Summary of the invention

[0006] In order to solve the above-mentioned problem, this solution provides a spoke connector, which enhances the connection strength between the spoke and the connectors at both ends by limiting the position of the recessed portion.

[0007] To achieve the above purpose, the technical solution adopted in this scheme is: a spoke connector, the connector body includes a rim end connector and a hub end connector, and also includes a recessed portion for limiting the spoke body, and the recessed portion is arranged inside or outside the connector body.

[0008] Furthermore, the spoke body is a metal spoke or a PBO fiber spoke, with two ends being hollow ring-shaped and the middle being rod-shaped.

[0009] Furthermore, the spoke body is a PBO fiber spoke.

[0010] Furthermore, the outer side of the rim end connecting piece includes a first recessed portion, and the outer side of the hub end connecting piece includes a second recessed portion.

[0011] Furthermore, two ends of the spoke body are respectively sleeved in the third recess of the first expansion plug and the fourth recess of the second expansion plug.

[0012] Further, the first expansion plug is limited in the wheel rim end connector;

[0013] The second expansion pin is limited in the hub end connecting piece.

[0014] Furthermore, the outer sides of the first expansion plug and the second expansion plug are wedge-shaped structures, which fit closely with the inner side of the connector body.

[0015] Furthermore, the outer side of the rim end connecting piece also includes threads.

[0016] Furthermore, the end of the hub end connecting piece also includes a protrusion.

[0017] In summary, this solution has the following advantages:

[0018] The spoke structure provided by the present solution will not bring potential safety hazards due to cracks. At the same time, it is rigidly connected to the thread cap and the cap head and can be directly limited in the connecting pieces at both ends by bending, thereby enhancing the connection strength between the spokes and the connecting pieces at both ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a spoke connection;

[0020] Figure 2 is a schematic diagram of the wheel rim end connector in the first embodiment;

[0021] Figure 3 is a schematic diagram of the hub end connecting member in the first embodiment;

[0022] Figure 4 is a schematic diagram of the wheel rim end connector in the second embodiment;

[0023] Figure 5 is a schematic diagram of the hub end connecting member in the second embodiment;

[0024] Figure 6 is a diagram showing the connection relationship between the expansion pin and the spoke body in the second embodiment;

[0025] Figure 7 is a schematic diagram of the expansion plug in the second embodiment;

[0026] Figure 8 is a schematic diagram of the spoke body.

[0027] in:

[0028] 100. Connector body;

[0029] 110, wheel rim end connector; 111, first recess; 112, thread; 113, first expansion plug;

[0030] 120, hub end connector; 121, second recess; 122, convex head; 123, second expansion pin; 200, spoke body. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0032] Embodiment 1:

[0033] A spoke connecting member, such as Figure 1-3 As shown, the connector body 100 includes a rim end connector 110 and a hub end connector 120 , and the spoke body 200 is embedded in the recesses on the two connectors, and the recesses are used to limit the spoke body 200 .

[0034] In order to overcome the problem in the prior art that spokes made of carbon fiber may crack and be unable to provide support, thus affecting the safety of bicycle use, in the structural setting of the present solution, the spoke body 200 is a metal spoke or a PBO fiber spoke.

[0035] The spoke structure provided by the present solution will not bring potential safety hazards due to cracks. At the same time, it is rigidly connected to the thread cap and the cap head and can be directly limited in the connecting pieces at both ends by bending, thereby enhancing the connection strength between the spokes and the connecting pieces at both ends.

[0036] In the structural setting of this scheme, during the manufacturing process, the spoke body 200 is made into a hollow ring shape at both ends according to the shape of the connector body 100, and the two ends fit into the recessed parts outside the connector body 100; the middle of the spoke body 200 is rod-shaped.

[0037] Specifically, during assembly, the spoke body 200 is sleeved and positioned in the recessed portion outside the connector body 100 .

[0038] The spoke body 200 in this embodiment is a PBO fiber spoke. The PBO fiber material has the advantages of low density and high rigidity. The PBO fiber has an excellent modulus, which makes it difficult to deform when subjected to force. When damaged, its material properties can also ensure rigidity and greater safety.

[0039] like Figure 1 and 2As shown, the rim end connector 110 is used to connect the rim end, and includes a first recess 111 on the outer midline. One end of the spoke body 200 is sleeved and confined in the first recess 111 .

[0040] The outer side of the wheel rim end connector 110 is also provided with a thread 112;

[0041] Specifically, the rim end connector 110 is screwed and installed on the inner side of the bicycle rim through the thread 112 .

[0042] like Figure 1 and 3 As shown, the hub end connector 120 is used to connect the hub end, and includes a second recess 121 on the outer midline. The other end of the spoke body 200 is sleeved and confined in the second recess 121 .

[0043] The end of the hub end connector 120 further includes a protrusion 122;

[0044] Specifically, the protrusion 122 is clamped in the mounting groove of the bicycle hub.

[0045] Embodiment 2:

[0046] The features of this embodiment that are different from those of the first embodiment are as follows:

[0047] In this embodiment, reference is provided Figure 4-8 The spoke body 200 is limited inside the rim end connecting piece 110 and the hub end connecting piece 120.

[0048] like Figure 4 As shown, the wheel rim end connector 110 has a tapered hole inside and a thread 112 outside;

[0049] The first expansion plug 113 is a wedge-shaped structure as a whole. After being inserted into the rim end connector 110, the first expansion plug 113 fits the tapered hole with the contact surface of the rim end connector 110. The outer diameter change of the first expansion plug 113 is consistent with the diameter change of the tapered hole of the rim end connector 110. The first expansion plug 113 can be expanded and tightened inside the rim end connector 110.

[0050] In the structural setting of this solution, a third recess is provided on the outer midline of the first expansion plug 113. The hollow ring structure at one end of the spoke body 200 is clamped on the outer side of the first expansion plug 113 and limited in the third recess.

[0051] Specifically, after the spoke body 200 is inserted into the rim end connector 110 , tension is provided in the reverse direction. During the tensioning process, the outer side of the first expansion pin 113 fits with the tapered hole of the rim end connector 110 , and the spoke body 200 is limited in the rim end connector 110 .

[0052] like Figure 5 As shown, the hub end connector 120 has a tapered hole inside and a convex head 122 outside;

[0053] The second expansion plug 123 is a wedge-shaped structure as a whole. After being inserted into the hub end connector 120, the second expansion plug 123 fits the contact surface of the hub end connector 120 with the conical hole. The outer diameter change of the second expansion plug 123 is consistent with the diameter change of the conical hole of the hub end connector 120. The second expansion plug 123 can be expanded and tightened inside the hub end connector 120.

[0054] In the structural setting of this solution, a fourth recess is provided on the outer midline of the second expansion plug 123. The hollow ring structure at the other end of the spoke body 200 is clamped on the outer side of the second expansion plug 123 and limited in the fourth recess.

[0055] Specifically, after the spoke body 200 is inserted into the hub end connector 120 , a pulling force is provided in the reverse direction. During the tensioning process, the outer side of the second expansion pin 123 fits with the tapered hole of the hub end connector 120 , and the spoke body 200 is limited in the hub end connector 120 .

[0056] To sum up, the spoke structure provided in the present application will not bring safety hazards due to the appearance of cracks. At the same time, it is rigidly connected to the thread cap and the cap head, and can be directly limited in the connecting parts at both ends by bending, thereby enhancing the connection strength between the spokes and the connecting parts at both ends.

[0057] The above implementation is only to illustrate the technical concept and features of this solution, and its purpose is to enable people familiar with this technology to understand the content of this solution and implement it accordingly, and it cannot be used to limit the protection scope of this solution. Any equivalent transformation or modification made according to the spirit of this solution should be included in the protection scope of this solution.

[0058] In the description of this scheme, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0059] For those skilled in the art, the specific meanings of the above terms in this solution can be understood according to specific circumstances.

[0060] It should be understood that the above-mentioned embodiments are merely illustrative and not restrictive. Without departing from the basic principles of the present solution, various obvious or equivalent modifications or substitutions that can be made by technicians in this field to the above details will be included in the protection scope of the present solution.

Claims

1. A spoke connector, the connector body (100) comprising a rim end connector (110) and a hub end connector (120), characterized in that: It also includes a recessed portion of the limiting spoke body (200), wherein the recessed portion is arranged inside or outside the connector body (100).

2. The spoke connecting member according to claim 1, characterized in that: The spoke body (200) is a metal spoke or a PBO fiber spoke, with two ends in a hollow ring shape and a rod shape in the middle.

3. The spoke connecting member according to claim 2, characterized in that: The spoke body (200) is a PBO fiber spoke.

4. The spoke connecting member according to claim 1, characterized in that: The outer side of the rim end connecting piece (110) includes a first recessed portion (111), and the outer side of the hub end connecting piece (120) includes a second recessed portion (121).

5. The spoke connecting member according to claim 3, characterized in that: The two ends of the spoke body (200) are respectively sleeved in the third recess of the first expansion plug (113) and the fourth recess of the second expansion plug (123).

6. The spoke connecting member according to claim 5, characterized in that: The first expansion plug (113) is limited in the wheel rim end connecting piece (110); The second expansion plug (123) is limited in the hub end connecting piece (120).

7. The spoke connecting member according to claim 6, characterized in that: The outer sides of the first expansion plug (113) and the second expansion plug (123) are wedge-shaped structures and fit closely to the inner side of the connector body (100).

8. The spoke connecting member according to claim 6, characterized in that: The outer side of the rim end connecting piece (110) further includes a thread (112).

9. The spoke connecting member according to claim 6, characterized in that: The end of the hub end connecting piece (120) further comprises a protrusion (122).

Images