Reducing spoke

Abstract

The utility model relates to a variable-diameter spoke which comprises a spoke body, the spoke body comprises a cylindrical first body, a plurality of grooves are formed in the side face of the first body, the length direction of each groove is parallel to the axis of the first body, and the grooves are equal in width and distributed around the axis of the first body in a circumferential array mode. The distance between every two adjacent grooves is smaller than or equal to the width of the grooves, and the ratio of the depth of the grooves to the diameter of the first body is (0.5-1.5): 10. According to the spoke, the grooves are formed in the side face of the first body, weight reduction is achieved, meanwhile, the parts between the adjacent grooves in the spoke form a structure similar to a reinforcing rib, the overall strength of the spoke is enhanced, the compression resistance and tensile performance of the spoke are improved, the torsion coefficient is increased, and the service life of the spoke is prolonged. And the spoke can meet the use requirements of special vehicles such as mountain vehicles and racing-grade vehicles.

Description

Technical Field

[0001] The utility model relates to a spoke with a variable diameter, which is applicable to the technical field of vehicle parts. Background Art

[0002] Spokes are components used to connect the wheel rim and the hub of a vehicle. They play a role in supporting the wheel and are often used in vehicles such as bicycles and mountain motorcycles. Most of the existing spoke structures are steel wire strips of equal diameter cylinders. Although this conventional structure is simple in process, it is heavy on the one hand, and its tensile strength, compression resistance, torsion coefficient and other properties are poor on the other hand, which cannot meet the use requirements of some mountain vehicles or racing vehicles. In addition to the above conventional structures, there are also some special structures in the prior art, such as cylindrical spokes that are wide at both ends and narrow in the middle. Compared with traditional structures, this structure is lighter, but the spoke strength is low, the tension is unstable, and it is difficult to ensure stability during riding; another example is a spoke with cylindrical ends and forged flat spokes in the middle. This structure can provide a better wind-breaking effect, but the spoke strength is also not high, and the compressive resistance is low. It is easy to bend when impacted, and it is difficult to meet the use requirements of complex terrains such as mountains. Utility Model Content

[0003] In order to solve the defects of the prior art mentioned above, the utility model proposes a spoke with a variable diameter.

[0004] The technical solution adopted by the utility model is: a variable-diameter spoke, including a spoke body, the spoke body including a cylindrical first body, a plurality of grooves are provided on the side of the first body, the length direction of each groove is parallel to the axis of the first body, the plurality of grooves are equal in width and are arranged in a circular array around the axis of the first body, and the spacing between two adjacent grooves is less than or equal to the width of the groove, and the ratio of the depth of the groove to the diameter of the first body is 0.5~1.5:10. By providing grooves on the side of the first body, the convex parts between the adjacent grooves form a structure similar to a reinforcing rib, which can not only strengthen the strength of the spoke, but also improve the tensile and compressive properties and torsion coefficient of the spoke, ensuring that the spoke can be applied to the use requirements of vehicles under various complex or professional terrains, and by providing grooves to form reinforcing ribs, the weight of the spoke can be reduced, making it lighter, thereby achieving the effect of reducing the weight of the vehicle.

[0005] Furthermore, the bottom surface of the groove is a cylindrical surface with the same curvature as the side surface of the first body, so that the bottom surfaces of several grooves become the side surfaces of a cylinder inside the first body. The cylinder provides main support for the first body, and cooperates with the reinforcing ribs formed between adjacent grooves to further improve the strength of the spokes and ensure the performance of the spokes.

[0006] Furthermore, a round chamfer is provided between the bottom surface and the side surface of the groove, which not only improves the structural stability of the reinforcing rib, but also makes it easier to demould the spoke after processing is completed, thereby reducing the processing difficulty.

[0007] Furthermore, the spoke body also includes a second body coaxially arranged with the first body and respectively connected to the two ends of the first body. The diameter of the second body is the same as the diameter of the first body. The first body and the second body together constitute the spoke body. By combining the first body and the second body, the processing difficulty is reduced on the basis of ensuring the strength of the spoke structure.

[0008] Furthermore, a chamfer is provided at the portion where the bottom surface of the groove is connected to the end surface of the second body, and the angle between the inclined surface of the chamfer and the axial centerline of the spoke body is 8°~12°. By chamfering the connection between the first body and the second body, the connection firmness between the first body and the second body is improved, and the structural strength of the spoke is further improved.

[0009] Furthermore, the first body and the second body are integrally formed to ensure the structural strength of the spoke body.

[0010] Furthermore, the variable-diameter spoke also includes a threaded portion for connecting to the wheel rim and an elbow portion for connecting to the hub, which are respectively connected to both ends of the spoke body, so as to facilitate installation of the spoke through the elbow portion and the threaded portion.

[0011] Furthermore, the spoke body, the threaded portion and the elbow portion are integrally formed to ensure the overall structural strength of the spoke.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The variable diameter spokes in the utility model, through the grooves opened on the side of the first body in the spokes, can achieve weight reduction while also making the parts between adjacent grooves on the spokes form a structure similar to reinforcing ribs, thereby strengthening the overall strength of the spokes, improving their compression and tensile properties, and enhancing the torsion coefficient, so that the spokes can meet the use requirements of special vehicles such as mountain vehicles and racing vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 yes Figure 1A schematic cross-sectional structure diagram of AA in the illustrated embodiment;

[0017] Figure 3 yes Figure 1 An enlarged view of the structure of region B in the embodiment shown;

[0018] The following are the descriptions of the reference numerals:

[0019] 1. Spoke body; 11. First body; 111. Groove; 12. Second body; 2. Threaded part; 3. Elbow part. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] Reference Figure 1-3 The variable-diameter spoke in this embodiment includes a spoke body 1, a threaded portion 2 for connecting to a wheel rim and an elbow portion 3 for connecting to a hub, respectively connected to both ends of the spoke body 1. The spoke body 1 includes a cylindrical first body 11, a plurality of grooves 111 are provided on the side of the first body 11, the length direction of each groove 111 is parallel to the axis of the first body 11, the plurality of grooves 111 are equal in width and are arranged in a circular array around the axis of the first body 11, and the spacing between two adjacent grooves 111 is less than or equal to the width of the groove 111, and the ratio of the depth of the groove 111 to the diameter of the first body 11 is 0.5-1.5:10. By opening grooves 111 on the side of the first body 11, the raised parts between adjacent grooves 111 form a structure similar to a reinforcing rib, which can not only strengthen the strength of the spokes, improve the tensile and compressive properties and torsional coefficient of the spokes, and ensure that the spokes can be suitable for the use requirements of vehicles in various complex or professional terrains, but also reduce the mass of the spokes by opening grooves to form reinforcing ribs, making them lighter, thereby achieving the effect of reducing the weight of the vehicle.

[0023] In a more preferred embodiment, the bottom surface of the groove 111 is a cylindrical surface with the same curvature as the side surface of the first body 11, so that the bottom surfaces of several grooves 111 become the side surfaces of a cylinder inside the first body 11. The cylinder provides main support for the first body 11, and cooperates with the reinforcing ribs formed between adjacent grooves 111 to further improve the strength of the spokes and ensure the performance of the spokes.

[0024] In a more preferred embodiment, a round chamfer is provided between the bottom surface and the side surface of the groove 111, which not only improves the structural stability of the reinforcing rib, but also makes it easier to demold the spoke after processing, thereby reducing the processing difficulty.

[0025] In a more preferred embodiment, the spoke body 1 also includes a second body 12 which is coaxially arranged with the first body 11 and respectively connected to the two ends of the first body 11. The diameter of the second body 12 is the same as the diameter of the first body 11. The first body 11 and the second body 12 together constitute the spoke body 1. By combining the first body 11 and the second body 12, the processing difficulty is reduced on the basis of ensuring the strength of the spoke structure.

[0026] In a more preferred embodiment, a chamfer is provided at the portion where the bottom surface of the groove 111 is connected to the end surface of the second body 12, and the angle between the inclined surface of the chamfer and the axial centerline of the spoke body 1 is 8°~12°. The chamfer is located at the connection between the first body 11 and the second body 12, forming ribs connected to the first body 11 and the second body 12 respectively, so as to improve the connection firmness between the first body 11 and the second body 12, and further improve the structural strength of the spoke.

[0027] In a more preferred embodiment, the first body 11 and the second body 12 are integrally formed to ensure the structural strength of the spoke body 1 .

[0028] In a more preferred embodiment, the spoke body 1, the threaded portion 2 and the elbow portion 3 are integrally formed to ensure the overall structural strength of the spoke.

[0029] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0030] The variable diameter spokes in the utility model, through the grooves opened on the side of the first body in the spokes, can achieve weight reduction while also making the parts between adjacent grooves on the spokes form a structure similar to reinforcing ribs, thereby strengthening the overall strength of the spokes, improving their compression and tensile properties, and enhancing the torsion coefficient, so that the spokes can meet the use requirements of special vehicles such as mountain vehicles and racing vehicles.

[0031] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A spoke with a variable diameter, comprising a spoke body (1), characterized in that: The spoke body (1) comprises a cylindrical first body (11), a side surface of the first body (11) is provided with a plurality of grooves (111), the length direction of each groove (111) is parallel to the axis of the first body (11), the plurality of grooves (111) have equal widths and are arranged in a circular array around the axis of the first body (11), the spacing between two adjacent grooves (111) is less than or equal to the width of the grooves (111), and the ratio of the depth of the groove (111) to the diameter of the first body (11) is 0.5-1.5:

10.

2. The spoke of variable diameter according to claim 1, characterized in that: The bottom surface of the groove (111) is a cylindrical surface having the same curvature as the side surface of the first body (11).

3. The spoke of variable diameter according to claim 1, characterized in that: A round chamfer is provided between the bottom surface and the side surface of the groove (111).

4. The spoke of variable diameter according to claim 1, characterized in that: The spoke body (1) further comprises a second body (12) which is coaxially arranged with the first body (11) and respectively connected to two end portions of the first body (11); the diameter of the second body (12) is the same as that of the first body (11).

5. The spoke of variable diameter according to claim 4, characterized in that: A chamfer is provided at a portion where the bottom surface of the groove (111) is connected to the end surface of the second body (12), and the angle between the inclined surface of the chamfer and the axis of the spoke body (1) is 8° to 12°.

6. The spoke of variable diameter according to claim 4, characterized in that: The first body (11) and the second body (12) are integrally formed.

7. The spoke of variable diameter according to claim 1, characterized in that: The variable-diameter spoke also includes a threaded portion (2) for connecting to a wheel rim and an elbow portion (3) for connecting to a wheel hub, which are respectively connected to two ends of the spoke body (1).

8. The spoke of variable diameter according to claim 7, characterized in that: The spoke body (1), the threaded portion (2) and the elbow portion (3) are integrally formed.

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