wheel

Abstract

The present invention provides a wheel, comprising a rim, a spoke, and a positioning element, wherein the rim comprises a rim body and a bent flange, the bent flange being connected to the circumference of one axial end of the rim body and extending in a curved manner, a first positioning hole being formed on the bent flange, and a stop step surface being formed in the first positioning hole; the axial inner surface of the spoke is adaptively fitted with the axial first end surface of the bent flange, and a second positioning hole is formed in the spoke at a position opposite to the first positioning hole; the positioning element comprises a connected positioning post and a stop end head, the stop end head being located in the first positioning hole and stopped at the stop step surface, and the positioning post extending into the second positioning hole after passing through the first positioning hole. The present invention solves the problems in the prior art that the spoke and rim cannot be reliably locked before welding, and that the contact area between the two is too small after assembly, thereby failing to ensure that the spoke provides stable and reliable support for the rim.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a structural improvement of a wheel. Background Art

[0002] In the prior art, the spokes and rim of a wheel are fixedly connected by welding. However, before the spokes are welded to the rim, the rim and the spokes need to be arranged to a predetermined relative position and then welded. During this process, the two cannot be reliably locked, which may cause the spokes and rim to shift during the welding operation. This makes it impossible to ensure the coaxiality of the rim and the spokes, thereby reducing the installation accuracy of the spokes.

[0003] In addition, after the rim and spokes of the existing wheel are assembled, the contact area between the two is too small, and it is impossible to ensure that the spokes provide stable and reliable support for the rim, and it is impossible to ensure that the wheel has reliable radial load-bearing capacity. When the vehicle is subjected to radial loads, the rim will deform significantly, seriously affecting the normal driving of the vehicle and even threatening the lives of passengers. Summary of the Invention

[0004] The main purpose of the present invention is to provide a wheel to solve the problems in the prior art that the spokes and rim of the wheel cannot be reliably locked before welding, which reduces the installation accuracy of the spokes, and after the two are assembled, the contact area between the two is too small, and it is impossible to ensure that the spokes provide stable and reliable support for the rim.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a wheel, comprising a rim, a spoke and a positioning element, wherein the rim comprises a rim body and a bent flange, the bent flange is connected to the circumference of one axial end of the rim body and extends in a bent manner, a first positioning hole is provided on the bent flange, and a stop step surface is formed in the first positioning hole; the spoke is arranged at one axial end of the rim, and the axial inner surface of the spoke is adaptively fitted with the axial first end surface of the bent flange, and a second positioning hole is provided at a position of the spoke opposite to the first positioning hole; the positioning element comprises a connected positioning column and a stop end head, wherein the stop end head is located in the first positioning hole and stops at the stop step surface, and the positioning column passes through the first positioning hole and extends into the second positioning hole to connect the spoke and the rim.

[0006] Furthermore, the first positioning hole includes a stop hole section and a guide hole section that are connected along the direction away from the rim body, and a stop step surface is formed at the connection between the stop hole section and the guide hole section, and a stop end face is formed at the connection between the stop end head and the positioning column, and the stop end face abuts against the stop step surface.

[0007] Furthermore, the stop end is located in the stop hole section, or the end surface of the stop end away from the positioning column is flush with the second axial end surface of the bent flange.

[0008] Furthermore, the bent flange includes a radial ring plate segment, a transition ring plate segment and an axial ring plate segment connected in sequence along the direction away from the rim body, wherein the first positioning hole is opened on the radial ring plate segment, the transition ring plate segment extends in a curved shape, and the axial inner surface of the spoke is adaptively fitted with the surface of the radial ring plate segment and the surface of the transition ring plate segment at the same time.

[0009] Furthermore, the axial ring plate segment protrudes from the axial outer surface of the spoke.

[0010] Furthermore, the end surface of the axial ring plate segment away from the transition ring plate segment is flush with the axial outer surface of the spoke.

[0011] Furthermore, the end surface of the axial ring plate segment away from the transition ring plate segment is smoothly transitioned to the axial outer surface of the spoke along a plane or a curved surface.

[0012] Furthermore, the end surface of the axial ring plate segment away from the transition ring plate segment is a smooth curved surface.

[0013] Furthermore, the spokes are welded to the rim, and a first weld bead structure and / or a second weld bead structure are formed at the connection between the two, wherein the first weld bead structure is located at the contact position between the stop end and the rim, and the second weld bead structure is located between the outer wall surface of the positioning column and the hole wall surface of the second positioning hole and / or the hole wall surface of the first positioning hole.

[0014] Furthermore, the thickness of the bent flange is the same as the thickness of the rim body, and the bent flange is integrally connected to the rim body.

[0015] By applying the technical solution of the present invention, a wheel with a positioning element is provided, which ensures the coaxiality between the spokes and the rim after welding, optimizes the connection position between the spokes and the rim, and ensures that the wheel has reliable radial load-bearing capacity.

[0016] Specifically, by optimizing the structural composition of the wheel, the wheel includes a positioning element, and the positioning element is configured to include a connected positioning column and a stop end. In this way, before welding the spoke and the rim, during the process of installing the spoke on the rim, the operator can pass the positioning column on the positioning element through the first positioning hole and then extend it into the second positioning hole, and the stop end is stopped at the stop step surface, thereby preventing the positioning element from falling off from the first positioning hole and the second positioning hole, thereby accurately installing and positioning the spoke on the rim, locking the relative position of the two, ensuring that the two will not shift relative to each other during subsequent welding operations, improving the installation accuracy of the spoke, and ensuring the coaxiality between the spoke and the rim after welding.

[0017] In addition, by optimizing the connection position between the spokes and the rim, the axial inner surface of the spokes is adaptively fitted with the axial first end face of the bent flange of the rim, that is, the axial inner surface of the spokes is directly adaptively fitted with the surface of the bent flange, thereby increasing the contact area between the two and ensuring that the spokes can provide stable and reliable support for the rim, thereby ensuring that the wheel has reliable radial load-bearing capacity. In this way, when the vehicle is subjected to radial loads, the rim will not produce large deformations and affect the normal driving of the vehicle, thereby ensuring the safety of the passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 A schematic cross-sectional view of a wheel according to an optional embodiment of the present invention is shown;

[0020] Figure 2 Shown Figure 1 An enlarged schematic diagram of point A in FIG.

[0021] Figure 3 Shown Figure 2 A schematic diagram of the wheel in FIG. 1 after the spokes and the rim are welded at the positioning element using the first welding method;

[0022] Figure 4 Shown Figure 2 A schematic diagram of the wheel in FIG. 1 after the spokes and rim are welded at the positioning element using the second welding method;

[0023] Figure 5 Shown Figure 2 Schematic diagram of the state of the wheel after the spokes and rim are welded at the positioning elements using the third welding method.

[0024] The above drawings include the following reference numerals:

[0025] 10. Rim; 11. Rim body; 12. Bending flange; 13. First positioning hole; 131. Stop step surface; 20. Spoke; 21. Second positioning hole; 30. Positioning element; 31. Positioning column; 32. Stop end head; 321. Stop end face; 132. Stop hole section; 133. Guide hole section; 121. Radial ring plate section; 122. Transition ring plate section; 123. Axial ring plate section; 100. First weld bead structure; 200. Second weld bead structure. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In order to solve the problems in the prior art that the spokes and rim of the wheel cannot be reliably locked before welding, which reduces the installation accuracy of the spokes, and the contact area between the two is too small after assembly, which makes it impossible to ensure that the spokes provide stable and reliable support for the rim, the present invention provides a wheel.

[0028] like Figure 1 and Figure 2 As shown, the wheel includes a rim 10, a spoke 20 and a positioning element 30, wherein the rim 10 includes a rim body 11 and a bent flange 12, the bent flange 12 is connected to the circumference of one axial end of the rim body 11 and extends in a bent manner, a first positioning hole 13 is provided on the bent flange 12, and a stop step surface 131 is formed in the first positioning hole 13; the spoke 20 is arranged at one axial end of the rim 10, and the axial inner surface of the spoke 20 is adaptively fitted with the axial first end surface of the bent flange 12, and a second positioning hole 21 is provided at a position of the spoke 20 opposite to the first positioning hole 13; the positioning element 30 includes a connected positioning column 31 and a stop end 32, wherein the stop end 32 is located in the first positioning hole 13 and stopped at the stop step surface 131, the positioning column 31 passes through the first positioning hole 13 and extends into the second positioning hole 21 to connect the spoke 20 and the rim 10.

[0029] The present application provides a wheel with a positioning element 30, which ensures the coaxiality between the spokes 20 and the rim 10 after welding, optimizes the connection position between the spokes 20 and the rim 10, and ensures that the wheel has reliable radial load-bearing capacity.

[0030] Specifically, by optimizing the structural composition of the wheel, the wheel includes a positioning element 30, and the positioning element 30 is configured to include a connected positioning column 31 and a stop end 32. In this way, before welding the spoke 20 and the rim 10, during the process of installing the spoke 20 on the rim 10, the operator can pass the positioning column 31 on the positioning element 30 through the first positioning hole 13 and then extend it into the second positioning hole 21, and the stop end 32 stops at the stop step surface 131, thereby preventing the positioning element 30 from falling off from the first positioning hole 13 and the second positioning hole 21, thereby accurately installing and positioning the spoke 20 on the rim 10, locking the relative position of the two, ensuring that the two will not shift relative to each other in the subsequent welding operation, improving the installation accuracy of the spoke 20, and ensuring the coaxiality between the spoke 20 and the rim 10 after welding.

[0031] In addition, by optimizing the connection position between the spokes 20 and the rim 10, the axial inner surface of the spokes 20 is adaptively fitted to the axial first end face of the bent flange 12 of the rim 10, that is, the axial inner surface of the spokes 20 is directly adaptively fitted to the surface of the bent flange 12, thereby increasing the contact area between the two and ensuring that the spokes 20 can provide stable and reliable support for the rim 10, thereby ensuring that the wheel has reliable radial load-bearing capacity. In this way, when the vehicle is subjected to radial loads, the rim 10 will not produce large deformations and affect the normal driving of the vehicle, thereby ensuring the safety of the passengers.

[0032] like Figure 2 As shown, the first positioning hole 13 includes a stop hole segment 132 and a guide hole segment 133 that are connected in a direction away from the rim body 11. A stop step surface 131 is formed at the connection between the stop hole segment 132 and the guide hole segment 133. A stop end surface 321 is formed at the connection between the stop end head 32 and the positioning post 31. The stop end surface 321 abuts against the stop step surface 131. In this way, the first positioning hole 13 is configured to include the stop hole segment 132 and the guide hole segment 133. The stop step surface 131 formed at the connection between the two serves as a stop and limiter for the positioning element 30. After the spoke 20 is installed and positioned on the rim 10, the positioning element 30 is prevented from falling out of the first positioning hole 13 and the second positioning hole 21, thereby ensuring the installation accuracy of the spoke 20.

[0033] like Figure 2 As shown, the end face of the stopper end 32 away from the positioning post 31 is flush with the second axial end face of the bent flange 12. This prevents the stopper end 32 from extending out of the first positioning hole 13 on the rim 10 and occupying the tire installation space, which may cause air leakage after the tire is inflated. After the tire is installed on the wheel, sufficient installation space is ensured, thereby ensuring that the tire's increased volume after inflation does not interfere with the stopper end 32, ensuring that the tire will not leak after inflation.

[0034] Optionally, the stopper end 32 is located in the stopper hole section 132. In this way, the stopper end 32 of the positioning element 30 is ensured to be hidden in the first positioning hole 13, and the stopper end 32 is prevented from extending out of the first positioning hole 13 on the rim 10 and occupying the installation space of the tire. This ensures that the stopper end 32 of the positioning element 30 does not interfere with the tire whose volume increases after inflation, and ensures that the tire does not leak after inflation, thereby ensuring normal driving of the vehicle.

[0035] like Figure 2 As shown, the bent flange 12 includes a radial ring plate segment 121, a transition ring plate segment 122, and an axial ring plate segment 123, which are connected in sequence along the direction away from the rim body 11. The first positioning hole 13 is formed in the radial ring plate segment 121, and the transition ring plate segment 122 extends in a curved shape. The axial inner surface of the spoke 20 is simultaneously adapted to fit the surfaces of the radial ring plate segment 121 and the transition ring plate segment 122. Thus, when the wheel is subjected to radial loads, the transition ring plate segment 122 of the bent flange 12 is most susceptible to deformation. By adapting the axial inner surface of the spoke 20 to fit the surfaces of the radial ring plate segment 121 and the transition ring plate segment 122 simultaneously, a sufficiently large contact area is ensured between the spoke 20 and the rim 10, thereby ensuring that the spoke 20 can provide stable and reliable support for both the radial ring plate segment 121 and the transition ring plate segment 122. This prevents significant deformation of the transition ring plate segment 122 from affecting the structural strength of the rim 10 and ensures normal vehicle operation.

[0036] like Figures 2 to 5 As shown, the axial ring plate segment 123 protrudes from the axial outer surface of the spoke 20. This ensures that the axial inner surface of the spoke 20 is simultaneously compatible with the surface of the radial ring plate segment 121 and the surface of the transition ring plate segment 122, while the spoke 20 is designed to be lightweight, which contributes to the lightweight design of the wheel.

[0037] Optionally, the end surface of the axial ring plate segment 123 away from the transition ring plate segment 122 is flush with the axial outer surface of the spoke 20. In this way, since the end surface at the circumference of the spoke 20 can be adaptively fitted with the surface of the axial ring plate segment 123, and the axial inner surface of the spoke 20 is also adaptively fitted with the surface of the radial ring plate segment 121 and the surface of the transition ring plate segment 122, the spoke 20 can provide stable and reliable support for the bent flange 12, thereby preventing the normal driving of the vehicle from being affected by large deformation of the bent flange 12.

[0038] Optionally, the end surface of the axial ring plate segment 123 away from the transition ring plate segment 122 is smoothly connected to the axial outer surface of the spoke 20 along a plane or a curved surface. In this way, the regularity of the wheel is improved, thereby improving the overall appearance of the wheel.

[0039] It should be noted that, in the present application, the wheel rim 10 is formed by rolling a plate-like substrate using a roll forming process. In order to prevent the edges of the plate-like substrate from abrading the roll forming mold during the roll forming process, the edges of the plate-like substrate need to be rounded before the roll forming process, such as Figure 2 As shown, the end surface of the axial ring plate segment 123 away from the transition ring plate segment 122 is a smooth curved surface.

[0040] like Figure 3 As shown, the spokes 20 are welded to the rim 10, and a first weld bead structure 100 is formed at the connection between the two. The first weld bead structure 100 is located at the contact position between the stopper end 32 and the rim 10. Thus, by forming the first weld bead structure 100 at the contact position between the stopper end 32 and the spokes 20, the positioning element 30 is firmly connected to the spokes 20 and the rim 10, preventing the positioning element 30 from falling off during vehicle driving. In addition, the spokes 20 and the rim 10 are indirectly welded together through the positioning element 30. Since the first weld bead structure 100 is formed at the contact position between the stopper end 32 and the rim 10, the welding area between the spokes 20 and the rim 10 is greatly increased, thereby ensuring the welding stability of the spokes 20 and the rim 10.

[0041] like Figure 4 As shown, the spoke 20 is welded to the rim 10, and a second weld bead structure 200 is formed at the connection between the two. The second weld bead structure 200 is located between the outer wall surface of the positioning post 31 and the hole wall surface of the second positioning hole 21 and a portion of the hole wall surface of the first positioning hole 13. In this way, the second weld bead structure 200 is ensured to fill the gap at the connection between the spoke 20 and the rim 10 as much as possible, thereby ensuring the reliability of the welding between the two. In addition, the provision of the second weld bead structure 200 ensures that the spoke 20 and the rim 10 are indirectly welded together through the positioning element 30. Because the second weld bead structure 200 is formed between the outer wall surface of the positioning post 31 and the hole wall surface of the second positioning hole 21 and a portion of the hole wall surface of the first positioning hole 13, the welding area between the spoke 20 and the rim 10 is greatly increased, thereby ensuring the stability of the welding between the spoke 20 and the rim 10.

[0042] In an embodiment (not shown) of the present application, the spoke 20 is welded to the rim 10, and a second weld bead structure 200 is formed at the connection between the two. The second weld bead structure 200 is located between the outer wall surface of the positioning post 31 and the wall surface of the second positioning hole 21. In this way, the positioning element 30 and the spoke 20 are tightly connected, preventing the positioning element 30 from falling out of the side of the first positioning hole 13 away from the spoke 20. Because the stop end surface 321 of the stop end 32 abuts the stop step surface 131, the stop step surface 131 acts as a stopper for the positioning element 30, thereby ensuring that the spoke 20 and the rim 10 are indirectly welded together via the positioning element 30.

[0043] In an embodiment (not shown) of the present application, the spoke 20 is welded to the rim 10, forming a second weld bead structure 200 at the connection between the two. The second weld bead structure 200 is located between the outer wall surface of the positioning post 31 and the wall surface of the first positioning hole 13. In this way, the second weld bead structure 200 is hidden within the first positioning hole 13, preventing the second weld bead structure 200 from being exposed on the side of the wheel to which the spoke 20 is mounted, thereby ensuring the overall aesthetic appearance of the wheel.

[0044] like Figure 5 As shown, the spoke 20 is welded to the rim 10, and a first weld bead structure 100 and a second weld bead structure 200 are formed at the connection between the two, wherein the first weld bead structure 100 is located at the contact position between the stop end 32 and the rim 10, and the second weld bead structure 200 is located between the outer wall surface of the positioning column 31 and the hole wall surface of the second positioning hole 21 and the hole wall surface of part of the first positioning hole 13. In this way, by forming a first weld bead structure 100 at the contact position between the stop end 32 and the rim 10, and forming a second weld bead structure 200 between the outer wall surface of the positioning column 31 and the hole wall surface of the second positioning hole 21 and the hole wall surface of part of the first positioning hole 13, a double fastening connection is ensured between the spoke 20 and the rim 10, ensuring that the spoke 20 and the rim 10 have a sufficiently large welding area, thereby ensuring the welding stability of the spoke 20 and the rim 10, and the positioning column 31 can also be reliably fixed on the wheel to avoid the vehicle's normal driving being affected by the falling off of the positioning column 31 during driving.

[0045] It should be noted that, in the present application, the thickness of the bending flange 12 is the same as the thickness of the rim body 11, and the bending flange 12 is integrally connected to the rim body 11. In this way, the thickness of the bending flange 12 is ensured to remain unchanged during the extension process, thereby ensuring the overall structural strength of the rim 10.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0048] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0050] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0051] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wheel, characterized in that: include: A rim (10), the rim (10) comprising a rim body (11) and a bent flange (12), the bent flange (12) being connected to a peripheral edge of one axial end of the rim body (11) and extending in a curved manner, a first positioning hole (13) being formed on the bent flange (12), and a stop step surface (131) being formed in the first positioning hole (13); A wheel spoke (20), the wheel spoke (20) being arranged at one axial end of the wheel rim (10), and the axial inner surface of the wheel spoke (20) being adaptively fitted with the axial first end surface of the bent flange (12), and a second positioning hole (21) being provided at a position of the wheel spoke (20) opposite to the first positioning hole (13); a positioning element (30), the positioning element (30) comprising a positioning column (31) and a stop end (32) connected to each other, wherein the stop end (32) is located in the first positioning hole (13) and stops at the stop step surface (131), and the positioning column (31) passes through the first positioning hole (13) and then extends into the second positioning hole (21) to connect the spoke (20) and the rim (10); The bent flange (12) includes a radial ring plate segment (121), a transition ring plate segment (122), and an axial ring plate segment (123) connected in sequence in a direction away from the rim body (11), wherein the first positioning hole (13) is opened on the radial ring plate segment (121), the transition ring plate segment (122) extends in a curved shape, and the axial inner surface of the spoke (20) is adaptively fitted with the surface of the radial ring plate segment (121) and the surface of the transition ring plate segment (122); The radial ring plate segment (121) extends in the radial direction of the rim (10), and the axial ring plate segment (123) extends in the axial direction of the rim (10).

2. The wheel according to claim 1, characterized in that The first positioning hole (13) includes a stop hole section (132) and a guide hole section (133) that are connected in a direction away from the rim body (11), and the connection between the stop hole section (132) and the guide hole section (133) forms the stop step surface (131), and the connection between the stop end head (32) and the positioning column (31) forms a stop end surface (321), and the stop end surface (321) abuts against the stop step surface (131).

3. The wheel according to claim 2, characterized in that The stop end (32) is located in the stop hole section (132), or the end surface of the stop end (32) away from the positioning column (31) is flush with the axial second end surface of the bent flange (12).

4. The wheel according to claim 1, characterized in that The axial ring plate segment (123) protrudes from the axial outer surface of the wheel spoke (20).

5. The wheel according to claim 1, characterized in that The end surface of the axial ring plate segment (123) away from the transition ring plate segment (122) is flush with the axial outer surface of the wheel spoke (20).

6. The wheel according to claim 5, characterized in that The end surface of the axial ring plate segment (123) away from the transition ring plate segment (122) is smoothly transitioned to the axial outer surface of the wheel spoke (20) along a plane or a curved surface.

7. The wheel according to claim 1, characterized in that The end surface of the axial ring plate segment (123) away from the transition ring plate segment (122) is a smooth curved surface.

8. The wheel according to claim 1, characterized in that The spoke (20) is welded to the rim (10), and a first weld bead structure (100) and / or a second weld bead structure (200) are formed at the connection between the two, wherein the first weld bead structure (100) is located at the contact position between the stop end (32) and the rim (10), and the second weld bead structure (200) is located between the outer wall surface of the positioning column (31) and the hole wall surface of the second positioning hole (21) and / or the hole wall surface of the first positioning hole (13).

9. The wheel according to claim 1, characterized in that The thickness of the bent flange (12) is the same as the thickness of the rim body (11), and the bent flange (12) and the rim body (11) are integrally connected.

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