Wheel

Abstract

The invention provides a wheel which comprises an outer spoke, an inner spoke and a rim, the outer spoke and the inner spoke are sequentially and fixedly connected with the inner wall of the rim in the axis direction of the rim, a plurality of mounting through holes are formed in the outer spoke, a plurality of connecting through holes are formed in the inner spoke, and the connecting through holes correspond to the mounting through holes in position in a one-to-one mode. And the outer spoke is fixedly connected with the inner spoke at the connecting through holes and the corresponding mounting through holes. According to the wheel, the hub spoke part is of a double-layer structure formed by combining the outer spoke and the inner spoke, and the multiple connecting sleeves are arranged at the positions needing to be connected, so that the outer spoke and the inner spoke do not need to bear too much torque, the lateral rigidity of the wheel can be remarkably improved, meanwhile, the material of the hub spoke of the wheel and the total weight of the wheel can be reduced, and the service life of the wheel is prolonged. Therefore, the material cost of the wheel is reduced, and light weight of a vehicle is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile equipment, and in particular to a wheel. Background Art

[0002] In the automotive manufacturing industry, to reduce wheel weight, the hub and spoke parts of the wheel are often replaced with metals with lower density than steel, such as aluminum alloy. However, the aluminum alloy hub and spoke structure often cannot withstand the lateral torque of the axle when the wheel turns. Increasing the hub thickness to improve its torsional strength will lead to excessively high material costs.

[0003] Therefore, how to provide a wheel with low material cost and high lateral stiffness has become a technical problem that needs to be solved urgently in this field. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art to a certain extent. To this end, the present invention provides a wheel with low material cost, light weight and high lateral stiffness.

[0005] To achieve the above-mentioned purpose, the present invention provides a wheel, which includes an outer spoke, an inner spoke and a rim, and the outer spoke and the inner spoke are fixedly connected to the inner wall of the rim in sequence along the axial direction of the rim, the outer spoke has a plurality of mounting through holes, the inner spoke has a plurality of connecting through holes, and the positions of the plurality of connecting through holes correspond one to one with the positions of the plurality of mounting through holes, and the outer spoke is fixedly connected to the inner spoke at the connecting through holes and the corresponding mounting through holes.

[0006] Optionally, the wheel further includes a plurality of connecting sleeves, the plurality of connecting sleeves corresponding one-to-one to the plurality of connecting through holes, the plurality of connecting sleeves being fixedly arranged between the outer spokes and the inner spokes, and the first end of the connecting sleeve being connected to the corresponding mounting through hole, and the second end of the connecting sleeve being connected to the corresponding connecting through hole.

[0007] Optionally, the connecting sleeve includes a sleeve body and a first positioning boss, the first positioning boss is arranged on the outer surface of the sleeve body and is located at the first end of the connecting sleeve, and the first positioning boss protrudes radially from the outer edge of the mounting through hole; the first positioning boss abuts against the outer spoke on the outside of the outer spoke, or the first positioning boss abuts against the outer spoke on the inside of the outer spoke.

[0008] Optionally, the connecting sleeve includes a sleeve body and a second positioning boss, the second positioning boss is arranged on the outer surface of the sleeve body and is located at the second end of the connecting sleeve, and the second positioning boss protrudes radially from the outer edge of the connecting through hole; the second positioning boss abuts the inner spoke on the outer side of the inner spoke, or the second positioning boss abuts the inner spoke on the inner side of the inner spoke.

[0009] Optionally, an inner edge of one of the connecting through hole and the corresponding mounting through hole protrudes toward the other of the connecting through hole and the corresponding mounting through hole, so that the outer spoke and the inner spoke are connected through the connecting through hole and the mounting through hole.

[0010] Optionally, an inner edge of the connecting through hole protrudes toward the mounting through hole.

[0011] Optionally, the wheel also includes a lateral reinforcement, an inner center hole is formed in the middle of the inner spoke, a plurality of connecting through holes surround the inner center hole section, the lateral reinforcement is arranged in the inner center hole, and an axle opening is formed at one end of the lateral reinforcement facing the rim.

[0012] Optionally, an outer center hole is formed in the middle of the outer spoke, and a plurality of mounting through holes are distributed around the outer center hole. The two ends of the lateral reinforcement are respectively fixedly connected to the outer spoke and the inner spoke, and the lateral reinforcement connects the outer center hole with the inner center hole.

[0013] Optionally, a plurality of spoke air holes are formed on the wheel, and the plurality of spoke air holes include a plurality of inner spoke air holes and a plurality of outer spoke air holes corresponding one-to-one to the plurality of inner spoke air holes, the plurality of outer spoke air holes are arranged on the outer spokes and distributed around the axis of the rim, the plurality of inner spoke air holes are arranged on the inner spokes and distributed around the axis of the rim, and the inner spoke air holes are connected to the corresponding outer spoke air holes.

[0014] Optionally, the outer spokes are recessed inwardly at edge regions of the outer spoke air holes, and the outer spokes are connected to corresponding edges of the inner spoke air holes on the inner spokes at the edges of the outer spoke air holes.

[0015] Optionally, the outer spoke is welded to the edge of the inner spoke air hole of the inner spoke at the edge of the outer spoke air hole.

[0016] Optionally, one of the outer spoke and the inner spoke is folded toward the outside of the opposite spoke air hole at the edge area of ​​the corresponding spoke air hole and fits with the outer surface of the opposite spoke to fix the outer spoke to the inner spoke.

[0017] Optionally, one of the outer spoke and the inner spoke has a plurality of first snap-fit ​​portions at the edge of the corresponding spoke air hole, and the other of the outer spoke and the inner spoke has a plurality of second snap-fit ​​portions at the edge of the corresponding spoke air hole, and the plurality of first snap-fit ​​portions and the plurality of second snap-fit ​​portions are snapped together one by one to fix the outer spoke and the inner spoke in connection.

[0018] Optionally, an annular groove extending around the axis of the rim is formed on the rim, the annular groove is recessed toward the interior of the rim, and an annular inner boss is formed on the inner wall of the rim, the edge of the outer spoke is fixedly connected to the edge of one end of the rim, and the edge of the inner spoke is fixedly connected to the annular inner boss.

[0019] Optionally, the inner spoke includes a hub portion, a recessed portion and a connecting tube, a plurality of connecting through holes are formed on the hub portion, the connecting tube surrounds the outer side of the hub portion, the recessed portion is connected between the hub portion and the connecting tube, and the recessed portion is recessed toward one side of the outer spoke, a plurality of inner spoke air holes are formed on the recessed portion, and the outer surface of the connecting tube is adhered to and fixedly connected to the annular inner boss.

[0020] Optionally, the outer spokes are formed integrally with the inner spokes.

[0021] Optionally, a receiving cavity is formed between the outer spoke and the inner spoke, and the wheel further includes a sound-absorbing and noise-reducing material filled in the receiving cavity.

[0022] In the wheel provided by the present invention, the hub spoke portion adopts a double-layer structure composed of outer spokes and inner spokes, and the corresponding connecting through-holes are connected to the mounting through-holes, forming a space for mounting fasteners (e.g., mounting screws) to pass through. When the wheel is fixedly connected to the axle, the mounting fasteners pass through the space and are fixed to the axle. When the vehicle is turning, the torque transmitted from the axle first acts on the connection between the connecting through-holes and the corresponding mounting through-holes, and then applies a force to the outer spokes and inner spokes, thereby driving the outer rim to rotate. During this process, the connection between the connecting through-holes and the mounting through-holes applies a force mainly in the radial direction to the outer spokes and inner spokes, respectively, so that the thin-walled outer spokes and inner spokes do not need to bear excessive torque, which can significantly improve the lateral stiffness of the wheel and extend the service life of the wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings:

[0024] Figure 1 is a schematic cross-sectional view of a wheel provided in an embodiment of the present invention;

[0025] Figure 2is a schematic diagram of the disassembled structure of a wheel provided in an embodiment of the present invention;

[0026] Figure 3 is a schematic side structural diagram of a wheel provided by an embodiment of the present invention;

[0027] Figure 4 yes Figure 3 MM-axis cross-sectional structure diagram of the middle wheel;

[0028] Figure 5 This is a schematic diagram of the connection relationship between the upper spokes and the lower spokes in a wheel provided by an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection relationship between the upper spokes and the lower spokes in a wheel provided by an embodiment of the present invention;

[0030] Figure 7 yes Figure 6 A partial enlarged schematic diagram of the structure in area A;

[0031] Figure 8 is a schematic diagram of the connection relationship between the upper spokes and the lower spokes in a wheel provided by another embodiment of the present invention;

[0032] Figure 9 yes Figure 8 A partial enlarged schematic diagram of the middle structure in area B;

[0033] Figure 10 This is a schematic diagram of the connection between the lower spoke and the rim of a wheel provided by an embodiment of the present invention;

[0034] Figure 11 yes Figure 10 A partial enlarged schematic diagram of the middle structure in region C;

[0035] Figure 12 1 is a schematic structural diagram of a connecting sleeve in a wheel provided by an embodiment of the present invention;

[0036] Figures 13 to 16 Schematic diagram of the installation process of the connecting sleeve in the wheel provided by an embodiment of the present invention;

[0037] Figure 17 is a schematic cross-sectional structural diagram of a wheel provided by another embodiment of the present invention;

[0038] Figure 18 is a schematic cross-sectional structural diagram of a wheel provided by another embodiment of the present invention;

[0039] Figure 19 is a schematic cross-sectional structural diagram of a wheel provided by another embodiment of the present invention;

[0040] Figure 20Schematic diagram of force analysis of various components in a wheel provided by an embodiment of the present invention;

[0041] Figure 21 It is a schematic diagram of another implementation manner of the wheel provided in an embodiment of the present invention.

[0042] Description of reference numerals:

[0043] Outer spoke 100; mounting through-hole 101; outer center hole 102; outer spoke air hole 103; process bevel 104; spoke ridge 105; process recess 106; process oblique ridge 107; second air hole 108; inner spoke 200; connecting through-hole 201; inner center hole 202; inner spoke air hole 203; hub 210; recess 220; connecting tube 230; rim 300; annular groove 310; first air hole 311; first flared section 320; Second flared section 330; connecting sleeve 400; mounting section 410; connecting section 420; guide section 430; annular outer boss 440; annular positioning groove 450; positioning step surface α; positioning step surface β; lateral reinforcement 500; first snap portion 610; snap bend portion 611; snap groove 612; second snap portion 620; second protrusion 621; mating protrusion 622; air guide 710; sealing member 720; sound-absorbing and noise-reducing material 800. DETAILED DESCRIPTION

[0044] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described in the embodiments are intended to explain the present invention and are not to be construed as limiting the present invention.

[0045] References in this specification to "one embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment itself can be included in at least one embodiment disclosed herein. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

[0046] In order to solve the above technical problems, as one aspect of the present invention, a wheel is provided. Figures 1 to 6 、 Figure 8 、 Figure 21 As shown, the wheel includes an outer spoke 100, an inner spoke 200 and a rim 300. The outer spoke 100 and the inner spoke 200 are fixedly connected to the inner wall of the rim 300 in sequence along the axial direction of the rim 300. The outer spoke 100 has a plurality of mounting through holes 101, and the inner spoke 200 has a plurality of connecting through holes 201. The positions of the plurality of connecting through holes 201 and the plurality of mounting through holes 101 correspond one to one. The outer spoke 100 and the inner spoke 200 are fixedly connected at the connecting through holes 201 and the corresponding mounting through holes.

[0047] In the wheel provided by the present invention, the hub and spoke portion adopt a double-layer structure composed of outer spokes 100 and inner spokes 200. Corresponding connecting holes 201 communicate with mounting holes 101, forming a space for mounting fasteners (e.g., mounting screws) to pass through. When the wheel is fixedly connected to the axle, the mounting fasteners pass through the space and are secured to the axle. When the vehicle is turning, torque transmitted from the axle first acts on the connection between the connecting holes 201 and the corresponding mounting holes 101, then applies force to the outer spokes 100 and inner spokes 200, thereby driving the outer rim 300 to rotate. During this process, the connection between the connecting holes 201 and the mounting holes 101 applies primarily radial force to the outer spokes 100 and inner spokes 200, respectively. As a result, the thin-walled outer spokes 100 and inner spokes 200 are not subjected to excessive torque, significantly improving the lateral stiffness of the wheel and extending its service life.

[0048] For example, Figure 20 As shown, when the vehicle turns left, the axle applies torque to the wheel under the action of bending moment T. At this time, the outer spokes 100 apply a radially forward force F1 to the rim 300, and the inner spokes 200 apply a radially backward force F2 to the rim 300, thereby driving the wheel rim 300 to rotate. In the present invention, the outer spokes 100 and inner spokes 200 are axially distributed. Therefore, when the wheel twists, the force borne by each individual spoke component (outer spoke 100, inner spoke 200) is mainly radial, and no large lateral torque is generated on the individual spoke components. This ensures the lateral stiffness of the wheel, ensuring that the wheel can withstand the torque acting on it when the vehicle turns, thereby extending the service life of the wheel.

[0049] In addition, the outer spoke 100 and the inner spoke 200 are arranged at intervals along the axial direction, and a cavity structure is formed between the two, so that the material of the wheel hub spokes and the total weight of the wheel can be reduced while reducing the bending and torsional stress, thereby reducing the material cost of the wheel and facilitating the lightweighting of the vehicle.

[0050] It should be pointed out that although it is described above that "the outer spokes 100 and the inner spokes 200 are fixedly connected at the connecting through holes 201 and the corresponding mounting through holes 101", the wheel does not have through holes only at the connecting through holes 201 and the mounting through holes 101, but also has fixed connections at other positions (for example, the outer spokes, inner spokes, and the edge of the rim).

[0051] As an optional embodiment of the present invention, the outer spoke 100 is made of aluminum or aluminum alloy.

[0052] As an optional embodiment of the present invention, the wall thickness of the outer spoke 100 is 0.05 mm to 0.15 mm.

[0053] As an optional embodiment of the present invention, the wall thickness of the outer spoke 100 is 0.1 mm.

[0054] As an optional embodiment of the present invention, the inner spoke 200 is made of aluminum or aluminum alloy.

[0055] As an optional embodiment of the present invention, the wall thickness of the inner spoke 200 is 0.05 mm to 0.15 mm.

[0056] As an optional embodiment of the present invention, the wall thickness of the inner spoke 200 is 0.1 mm.

[0057] As an optional embodiment of the present invention, the rim 300 is made of steel.

[0058] As an optional embodiment of the present invention, the wall thickness of the rim 300 is 0.05 mm to 0.15 mm.

[0059] As an optional embodiment of the present invention, the wall thickness of the rim 300 is 0.1 mm.

[0060] As an optional embodiment of the present invention, Figure 3 As shown, a plurality of mounting through holes 101 are distributed at intervals around the axis of the rim 300 , and a plurality of connecting through holes 201 are distributed at intervals around the axis of the rim 300 .

[0061] As an optional embodiment of the present invention, Figure 3 As shown, the plurality of mounting through holes 101 are distributed at equal intervals around the axis of the rim 300 , and the plurality of connecting through holes 201 are distributed at equal intervals around the axis of the rim 300 .

[0062] In the embodiment of the present invention, the plurality of connecting through holes 201 are evenly distributed in the circumferential direction to ensure that the hub and spokes bear loads evenly in the circumferential direction, thereby further ensuring the service life of the wheel.

[0063] As an optional embodiment of the present invention, Figure 3 As shown, the diameter d1 of the concentric circles of the plurality of mounting through holes 101 distributed around the axis of the rim 300 is 80 mm to 120 mm.

[0064] As an optional embodiment of the present invention, Figure 3 As shown, the diameter d1 of the concentric circles of the plurality of mounting through holes 101 distributed around the axis of the rim 300 is 100 mm.

[0065] In the embodiment of the present invention, there is no special limitation on how to fix the connection between the connecting through hole 201 and the corresponding mounting through hole 101. As an optional embodiment, Figure 1As shown, the wheel includes a plurality of connecting sleeves 400, which are fixedly arranged between the outer spoke 100 and the inner spoke 200, and the first end of the connecting sleeve 400 is connected to the mounting through hole 101, and the second end of the connecting sleeve 400 is connected to the corresponding connecting through hole 201.

[0066] Specifically, a plurality of connecting sleeves 400 are provided at the position where the wheel axle needs to be connected by installing fasteners (i.e., the central hub portion 210), and the two ends of the connecting sleeve 400 are respectively connected to the outer spoke 100 and the inner spoke 200, so that when the vehicle turns, the torque transmitted from the wheel axle first acts on the connecting sleeve 400, and then applies a force to the outer spoke 100 and the inner spoke 200 through the sleeve, thereby driving the outer rim 300 to rotate. In this process, the sleeve applies a mainly radial force to the outer spoke 100 and the inner spoke 200, so that the thin-walled outer spoke 100 and the inner spoke 200 do not have to bear excessive torque, which can significantly improve the lateral stiffness of the wheel and extend the service life of the wheel.

[0067] In the embodiment of the present invention, there is no particular limitation on the specific number of the mounting through hole 101, the connecting through hole 201, and the connecting sleeve. As an optional embodiment of the present invention, Figure 3 As shown, the wheel includes four connecting sleeves 400 , four mounting through holes 101 , and four connecting through holes 201 .

[0068] In the embodiment of the present invention, the structure of the connecting sleeve 400 is not particularly limited, as long as it can securely connect the outer spoke 100 and the inner spoke 200 and prevent them from falling out of the mounting through-hole 101 and the connecting through-hole 201. For example, the connecting sleeve 400 can be a tubular member, secured in the mounting through-hole 101 and the connecting through-hole 201 by an interference fit.

[0069] As an optional embodiment of the present invention, Figure 2 and Figure 12 As shown, the connecting sleeve 400 includes a sleeve body 403 and a first positioning boss 401. The first positioning boss 401 is provided on the outer surface of the sleeve body 403 and is located at the first end of the connecting sleeve 400. It should be noted that the first positioning boss 401 protrudes radially from the outer edge of the mounting through hole 101.

[0070] The first positioning boss 401 abuts against the outer spoke 100 on the outside of the outer spoke 100 (the side away from the inner spoke 200 ), or the first positioning boss 401 abuts against the outer spoke 100 on the inside of the outer spoke 100 (the side facing the inner spoke 200 ).

[0071] The following describes an embodiment in which the first positioning boss 401 abuts the outer spoke 100 on the outside of the outer spoke 100. The positioning end surface α of the first positioning boss 401 is oriented in the same direction as the end surface of the first end of the connecting sleeve 400 (also the end surface of the sleeve body 403). When assembling the connecting sleeve 400 with the outer spoke 100, the connecting sleeve 400 is inserted from the inside of the outer spoke 100 into the corresponding mounting through-hole 101 until the positioning end surface α of the first positioning boss 401 abuts the inner surface of the outer spoke 100.

[0072] In the embodiment of the present invention, the size and arrangement of the first positioning boss 401 are not particularly limited, as long as the positioning boss 401 can prevent the connecting sleeve 400 from falling out of the mounting through hole 101. As an optional embodiment, the first positioning boss 401 is arranged around the sleeve body 403.

[0073] Similarly, in order to prevent the connecting sleeve 400 from being dislodged from the connecting through hole 201 of the inner spoke 200, optionally, as shown in FIG. Figure 4 、 Figure 12 As shown, the second end of the connecting sleeve 400 may be provided with a second positioning boss 402. That is, the outer surface of the sleeve body 403 is provided with the second positioning boss 402, and the second positioning boss 402 radially protrudes from the outer edge of the connecting through hole 201.

[0074] The second positioning boss 402 abuts against the inner spoke 200 on the outside of the inner spoke 200 (the side away from the outer spoke 100 ), or the second positioning boss 402 abuts against the inner spoke 200 on the inside of the inner spoke 200 (the side facing the outer spoke 100 ).

[0075] The following describes an embodiment in which the second positioning boss 402 abuts the inner spoke 200 on the outer side of the inner spoke 200. The positioning end surface β of the second positioning boss is oriented in the same direction as the end surface of the second end of the connecting sleeve 400 (i.e., the end surface of the second end of the sleeve body 403). The second end of the connecting sleeve 400 passes through the connecting through-hole 201, and the inner spoke 200 is folded inward at the edge of the connecting through-hole 201 and abuts against the positioning end surface β of the second positioning boss 402.

[0076] When assembling the connecting sleeve 400 with the inner spoke 200 , the connecting sleeve 400 is inserted into the corresponding connecting through hole 201 from the inner side of the inner spoke 200 until the positioning end surface β of the second positioning boss 402 abuts against the inner surface of the inner spoke 200 .

[0077] In the embodiment of the present invention, the specific structure and arrangement of the second positioning boss 402 are not particularly limited, as long as they can prevent the connecting sleeve 400 from passing through the connecting through-hole 201. Optionally, the second positioning boss 402 is arranged around the sleeve body 403. In other words, the second positioning boss 402 has a positioning end surface β that surrounds the outer side of the second end surface of the connecting sleeve 400. The second end of the connecting sleeve 400 passes through the connecting through-hole 201, and the inner spoke 200 is concave inward (in the embodiment of the present invention, the inner side of the outer spoke 100 and the inner spoke 200 refers to the side facing away from each other) at the edge of the connecting through-hole 201 and abuts against the positioning end surface β.

[0078] In an embodiment of the present invention, the first end of the connecting sleeve 400 enters the mounting through-hole 101, thereby cooperating with the inner wall of the mounting through-hole 101 to achieve radial positioning, and axial positioning is achieved by abutting the inner wall of the outer spoke 100 through the positioning end face α, and the positioning end face β of the second end serves as the positioning surface in the rotary riveting process. The material of the inner spoke 200 around the connecting through-hole 201 is folded inward during the rotary riveting process to ensure that the second end of the connecting sleeve 400 is stably fixed, thereby ensuring the connection strength between the connecting sleeve 400 and the outer spoke 100 and the inner spoke 200.

[0079] In the embodiment of the present invention, the connecting sleeve 400 may include a sleeve body 403 , a first positioning boss 401 disposed on an outer surface of a first end of the sleeve body 403 , and a second positioning boss 402 disposed on an outer surface of a second end of the sleeve body 403 .

[0080] As an optional embodiment of the present invention, Figure 12 As shown, the inner hole of the connecting sleeve 400 includes a mounting section 410 extending to the first end of the connecting sleeve 400 and a connecting section 420 extending to the second end of the connecting sleeve 400, the cross-sectional size of the mounting section 410 is larger than the cross-sectional size of the connecting section 420, and the inner hole of the connecting sleeve 400 has a fastening step surface facing the first end of the connecting sleeve 400 between the mounting section 410 and the connecting section 420, and the fastening step surface is used to cooperate with the head of a threaded fastener (for example, a screw or bolt).

[0081] In order to facilitate the fastener to enter the connecting section 420 from the installation section 410, as an optional embodiment of the present invention, as shown in FIG. Figure 12As shown, the inner hole of the connecting sleeve 400 also includes a guide section 430 connected between the mounting section 410 and the connecting section 420. The cross-sectional dimension of the end portion of the guide section 430 toward the second end of the connecting sleeve 400 corresponds to the cross-sectional dimension of the connecting section 420, and the cross-sectional dimension of the guide section 430 gradually increases in the direction toward the first end of the connecting sleeve 400, and the fastening step surface is located at the connection between the mounting section 410 and the guide section 430.

[0082] As an optional embodiment of the present invention, Figure 4 As shown, the diameter d2 of the connecting section 420 is 12 mm to 16 mm.

[0083] As an optional embodiment of the present invention, the diameter d2 of the connecting section 420 is 14 mm.

[0084] As an optional embodiment of the present invention, Figure 12 As shown, the outer surface of the first end of the connecting sleeve 400 has an annular outer boss 440 extending around the axis of the connecting sleeve 400 , and the surface of the annular outer boss 440 facing the first end of the connecting sleeve 400 is formed as a first positioning step surface α.

[0085] As an optional embodiment of the present invention, Figure 12 As shown, the second end of the connecting sleeve 400 has an annular positioning groove 450 extending around the axis of the connecting sleeve 400 , and the bottom surface of the annular positioning groove 450 is formed as a second positioning step surface β.

[0086] As another optional embodiment of the present invention, both ends of the connecting sleeve 400 can also be directly fixedly connected to the inner spoke 200 and the outer spoke 100. Specifically, as shown in FIG. Figure 1 As shown, the first end of the connecting sleeve 400 passes through the mounting through hole 101 and is fixedly connected to the outer spoke 100 ; the second end of the connecting sleeve 400 passes through the connecting through hole 201 and is fixedly connected to the inner spoke 200 .

[0087] In the embodiment of the present invention, there is no particular limitation on how to achieve the above-mentioned "fixed connection". For example, the "fixed connection" is welding.

[0088] It should be noted that the outer spoke 100 and the inner spoke 200 can be fixedly connected without the connecting sleeve 400. For example, the outer spoke 100 and the inner spoke 200 can be fixedly connected at the mounting through hole 101 and the connecting through hole 201 by means of riveting, flanging, etc.

[0089] Optionally, the inner edge of one of the connecting through hole 201 and the corresponding mounting through hole 101 protrudes toward the other of the connecting through hole 201 and the corresponding mounting through hole 101, so that the outer spoke 100 and the inner spoke 200 are connected through the connecting through hole 201 and the mounting through hole 101.

[0090] In the embodiment shown in the figure, the inner edge of the connecting through hole 201 protrudes toward the mounting through hole 101 .

[0091] It should be noted that an inner center hole 202 is formed at least in the middle of the inner spoke 200 for the axle to be inserted into the inner center hole 202 .

[0092] In order to further improve the lateral stiffness of the wheel, as an optional embodiment of the present invention, Figure 1 、 Figure 2 As shown, the wheel also includes a lateral reinforcement 500, an inner center hole 202 is formed in the middle of the inner spoke 200, a plurality of connecting through holes 201 are distributed around the inner center hole 202, the lateral reinforcement 500 is arranged in the inner center hole 202, and an axle opening is formed at one end of the lateral reinforcement 500 facing the rim 300 for the axle to be inserted.

[0093] In the embodiment of the present invention, the specific structure of the lateral reinforcement member 500 is not particularly limited. For example, the lateral reinforcement member 500 may have a tubular structure or a cylindrical structure with a bottom seal. It should be noted that when the lateral reinforcement member 500 is a cylindrical structure with a bottom seal, no through-holes are provided on the outer spoke 100 opposite the lateral reinforcement member 500, and the bottom seal of the lateral reinforcement member 500 faces the outer spoke 100.

[0094] As another optional embodiment, an outer center hole 102 is formed in the middle of the outer spoke 100, and a plurality of mounting through holes 101 are distributed around the outer center hole 102. An inner center hole 202 is also formed on the inner spoke 200, and a plurality of connecting through holes 201 are distributed around the inner center hole 202. The two ends of the lateral reinforcement 500 are fixedly connected to the outer spoke 100 and the inner spoke 200 respectively, and the lateral reinforcement 500 connects the outer center hole 102 with the inner center hole 202.

[0095] In the embodiment of the present invention, there is no particular limitation on how to achieve the "fixed connection" of the lateral reinforcement member 500. For example, both ends of the lateral reinforcement member 500 are welded to the outer spoke 100 and the inner spoke 200, respectively.

[0096] As an optional embodiment of the present invention, the outer diameter of the lateral reinforcement 500 is 50 mm to 58 mm.

[0097] As an optional embodiment of the present invention, the outer diameter of the lateral reinforcement 500 is 54 mm.

[0098] In order to further improve the lateral stiffness of the wheel, as an optional embodiment of the present invention, Figure 2 As shown, a plurality of spoke air holes are formed on the wheel, and the plurality of spoke air holes include a plurality of inner spoke air holes 203 and a second plurality of outer spoke air holes 103 corresponding one-to-one with the plurality of inner spoke air holes 203. In other words, the outer spokes 100 have a plurality of outer spoke air holes 103 distributed around the axis of the rim 300, and the inner spokes 200 have a plurality of inner spoke air holes 203 distributed around the axis of the rim 300, and the outer spoke air holes 103 are connected to the corresponding inner spoke air holes 203.

[0099] The outer spokes 100 are recessed inwardly at the edge of the outer spoke air holes 103 , and the outer spokes 100 are connected to the edges of the corresponding inner spoke air holes 203 on the inner spokes 200 at the edges of the outer spoke air holes 103 .

[0100] In an embodiment of the present invention, outer spoke air holes 103 and inner spoke air holes 203 are formed on the outer spokes 100 and the inner spokes 200 respectively. The outer spoke air holes 103 and the inner spoke air holes 203 are connected one-to-one, thereby forming air holes that pass through the hub spoke structure. While reducing the wheel material and achieving weight reduction and lowering material costs, the bending structure formed around the opening is used to further improve the lateral stiffness of the hub spokes, thereby improving the lateral stiffness of the wheel.

[0101] As another optional embodiment, the edges of the inner spoke air holes 203 and the edges of the corresponding outer spoke through holes 103 can be flatly attached and then fixed together by welding or other means.

[0102] As an optional embodiment of the present invention, Figure 3 As shown, the outer spoke 100 is recessed inward at the edge of the outer spoke air holes 103 to form a process bevel 104 , and the area between the process bevels 104 of adjacent outer spoke air holes 103 forms a spoke ridge 105 .

[0103] In order to further improve the lateral stiffness of the wheel, as an optional embodiment of the present invention, Figure 3 As shown, the outer spoke 100 is further formed with an inwardly recessed process recess 106 on the side of the spoke ridge 105 away from the axis of the rim 300 , and the area between the process recess 106 and the process inclined surfaces 104 of the outer spoke air holes 103 on both sides forms a process inclined ridge 107 .

[0104] As an optional embodiment of the present invention, Figure 1 、 Figure 4 As shown, the outer spoke 100 is welded to the edge of the inner spoke air hole 203 of the inner spoke 200 at the edge of the outer spoke air hole 103 .

[0105] In other embodiments of the present invention, the outer spokes 100 and the inner spokes 200 may be connected to each other by other means such as snapping, bending and wrapping. Specifically:

[0106] As an optional embodiment of the present invention, Figure 6 、 Figure 7 As shown, one of the outer spoke 100 and the inner spoke 200 is folded toward the outside of the opposite spoke air hole at the edge area of ​​the corresponding spoke air hole and fits with the outer surface of the opposite spoke to fix the outer spoke 100 and the inner spoke 200 together.

[0107] As another optional embodiment of the present invention, Figure 6 and Figure 7 As shown in the figure, one of the outer spokes 100 and the inner spokes 200 has a plurality of first snap-fit ​​portions 610 at the edge of the corresponding spoke air hole (the figure shows the first snap-fit ​​portion 610 being located on the outer spoke 100), and the other of the outer spokes 100 and the inner spokes 200 has a plurality of second snap-fit ​​portions 620 at the edge of the corresponding spoke air hole. The plurality of first snap-fit ​​portions 610 and the plurality of second snap-fit ​​portions 620 are snapped together one by one to fix the outer spokes 100 and the inner spokes 200 in connection.

[0108] As an optional embodiment of the present invention, Figure 7 As shown, the first buckle portion 610 includes a buckle bent portion 611 and a buckle groove 612 formed on the opening bent portion 611 , and the second buckle 620 is in the form of a protrusion, and the second buckle 620 is inserted into the buckle groove 612 .

[0109] like Figure 8 and Figure 9 As shown in , the outer spoke 100 is inserted into the inner spoke air hole and forms a flange, which is used to clamp the edge of the outer spoke air hole to fix the inner spoke 200 to the outer spoke 100.

[0110] In other embodiments of the present invention, the outer spoke 100 and the inner spoke 200 may also be formed as one piece.

[0111] exist Figure 10 and Figure 11 In the embodiment shown in , the annular inner boss 440 has an inwardly protruding inner convex portion 311a, and the inner spoke 200 is bent in an area corresponding to the inner convex portion 311a and wrapped around the inner convex portion 311a to fix the inner spoke 200 to the annular inner boss.

[0112] It should be pointed out that at the connection between the inner spoke 200 and the outer spoke 100, a method of "forming a bend in the overlapping area of ​​the outer spoke 100 and the inner spoke 200, and the bend on the outer spoke 100 covering the bend on the inner spoke 200" can also be adopted.

[0113] like Figure 18 and Figure 19 As shown in , in an embodiment of the present invention, an accommodating cavity is formed between the outer spoke 100 and the inner spoke 200 , and accordingly, the wheel further includes a sound-absorbing and noise-reducing material filled in the accommodating cavity.

[0114] Filling the wheel with sound-absorbing and noise-reducing material can absorb the noise generated during wheel rotation, thereby improving the NVH (Noise, Vibration, Harshness) performance of the entire vehicle including the wheel, thereby enhancing the overall comfort and driving experience. Optionally, the sound-absorbing and noise-reducing material can be nylon and / or honeycomb material.

[0115] As an optional embodiment of the present invention, Figure 2 As shown, an annular groove 310 is formed on the rim 300 and extends around the axis of the rim 300. The annular groove 310 is recessed toward the interior of the rim 300, and an annular inner boss 440 is formed on the inner wall of the rim 300. The edge of the outer spoke 100 is fixedly connected to the edge of one end of the rim 300, and the edge of the inner spoke 200 is fixedly connected to the annular inner boss 440.

[0116] In order to further improve the lateral stiffness of the wheel, as an optional embodiment of the present invention, Figure 2 As shown, the inner spoke 200 includes a hub portion 210, a recessed portion 220 and a connecting tube 230, a plurality of connecting through holes 201 are formed on the hub portion 210, the connecting tube 230 surrounds the outer side of the hub portion 210, the recessed portion 220 is connected between the hub portion 210 and the connecting tube 230, and the recessed portion 220 is recessed toward the side of the outer spoke 100, a plurality of inner spoke air holes 203 are formed on the recessed portion 220, and the outer surface of the connecting tube 230 is adhered to and fixedly connected to the annular inner boss.

[0117] In the embodiment of the present invention, the outer spokes 100 and the inner spokes 200 are fixedly connected to different positions on the rim 300, thereby forming a Y-shaped connection structure at the end of the rim 300, further improving the overall strength and rigidity of the wheel.

[0118] As an optional embodiment of the present invention, the outer diameter of the connecting cylinder 230 is larger than the inner diameter of the annular inner boss, so that the connecting cylinder 230 can form an interference fit with the inner wall of the annular inner boss, ensuring smooth welding assembly.

[0119] As an optional embodiment of the present invention, Figure 2As shown, the rim 300 includes a main body section and a first flared section 320 connected to one end of the main body section, an annular groove 310 is formed on the main body section, the first end diameter of the first flared section 320 corresponds to the diameter of the main body section, the second end diameter of the first flared section 320 is larger than the diameter of the main body section, the second end of the first flared section 320 is formed as the end face of the rim 300, and the edge of the outer spoke 100 is fixedly connected to the second end of the first flared section 320.

[0120] As an optional embodiment of the present invention, Figure 2 As shown, the rim 300 further includes a second flared section 330 connected to the other end of the main section. The diameter of the second flared section 330 at one end facing away from the main section is larger than that of the main section and forms the end surface of the rim 300 .

[0121] As an optional embodiment of the present invention, Figure 4 As shown, the outer diameter d3 of the main body section is 360 mm to 440 mm.

[0122] As an optional embodiment of the present invention, the outer diameter d3 of the main body section is 405.6 mm.

[0123] As an optional embodiment of the present invention, Figure 2 As shown, a through first air hole 311 is formed on the side wall of the annular groove 310 , and a through second air hole 108 is formed on the outer spoke 100 along the wall thickness direction of the outer spoke 100 . The position of the second air hole 108 corresponds to the position of the first air hole 311 .

[0124] As an optional embodiment of the present invention, Figure 17 and Figure 19 As shown, the wheel further includes an air guide 710 , which passes through the first air hole 301 and the second air hole 108 , and has an air guide passage inside the air guide 710 that can connect the bottom groove 310 with the outer side of the outer spoke 100 .

[0125] As an optional embodiment of the present invention, Figure 4 As shown, an electrophoretic liquid reserved hole 231 is formed on the inner spoke 200 and passes through the thickness direction of the inner spoke 200. After the wheel is coated or dyed by the electrophoretic process, the electrophoretic liquid entering the cavity between the outer spoke 100 and the inner spoke 200 can quickly flow out through the electrophoretic liquid reserved hole 231, so as to shorten the process window time and improve the production efficiency of the wheel product.

[0126] As a preferred embodiment of the present invention, Figure 19As shown, a sealing member 720 is provided in the electrophoretic liquid reserved hole 231 , which can seal the electrophoretic liquid reserved hole 231 to prevent water vapor or road debris from entering the cavity (accommodation cavity) between the outer spoke 100 and the inner spoke 200 through the electrophoretic liquid reserved hole 231 .

[0127] Experimental verification shows that, under the premise of a comparable wheel weight, the fatigue performance of the wheel structure provided by the present invention can meet the use requirements, and the lateral stiffness can be increased by 1.5 to 3 times compared with the existing wheel structure.

[0128] As a second aspect of the present invention, a method for manufacturing a wheel is provided, for manufacturing a front wheel, the method comprising:

[0129] Step S1, providing an outer spoke, an inner spoke, and a rim, wherein the outer spoke has a plurality of mounting through holes, the inner spoke has a plurality of connecting through holes, and the plurality of connecting through holes correspond to the plurality of mounting through holes in a one-to-one manner;

[0130] Step S2, fixing the outer spokes to the inner spokes at a plurality of connection through holes and mounting through holes;

[0131] Step S3: respectively fix the outer spokes and the inner spokes to the inner wall of the rim, so that the outer spokes and the inner spokes are fixedly connected to the inner wall of the rim in sequence along the axial direction of the rim.

[0132] As described above, in the wheel provided by the present invention, the hub and spoke portion adopts a double-layer structure composed of outer spokes 100 and inner spokes 200. Corresponding connecting holes 201 communicate with mounting holes 101, forming a space for mounting fasteners (e.g., mounting screws) to pass through. When the wheel is fixedly connected to the axle, the mounting fasteners pass through the space and are secured to the axle. When the vehicle is turning, torque transmitted from the axle first acts on the connection between the connecting holes 201 and the corresponding mounting holes 101, then applies force to the outer spokes 100 and inner spokes 200, thereby driving the outer rim 300 to rotate. During this process, the connection between the connecting holes 201 and the mounting holes 101 applies primarily radial force to the outer spokes 100 and inner spokes 200, respectively. As a result, the thin-walled outer and inner spokes 100 and 200 are not subjected to excessive torque, significantly improving the lateral stiffness of the wheel and extending its service life.

[0133] In addition, the outer spoke 100 and the inner spoke 200 are arranged at intervals along the axial direction, and a cavity structure is formed between the two, so that the material of the wheel hub spokes and the total weight of the wheel can be reduced while reducing the bending and torsional stress, thereby reducing the material cost of the wheel and facilitating the lightweighting of the vehicle.

[0134] As an optional embodiment of the present invention, the outer spokes and the inner spokes can be fixedly connected via connecting sleeves 400. Accordingly, step S2 may include: assembling the first end of each connecting sleeve 400 with the corresponding mounting through-hole, and assembling the second end of each connecting sleeve 400 with the corresponding connecting through-hole, so as to achieve a fixed connection between the outer spokes and the inner spokes.

[0135] As an optional embodiment, a first positioning boss 401 having a positioning end surface α is formed at the first end of the connecting sleeve 400, and a second positioning boss 402 having a positioning end surface β is formed at the second end of the connecting sleeve 400;

[0136] In step S2, the mounting through-holes of the outer spokes are assembled with the first ends of the corresponding connecting sleeves, and the connecting through-holes of the inner spokes are assembled with the second ends of the corresponding connecting sleeves, so as to achieve a fixed connection between the outer spokes and the inner spokes.

[0137] Step S21: Pass the first end of the connecting sleeve 400 through the mounting through hole 101, and make the positioning end surface α abut against the inner wall of the outer spoke 100;

[0138] Step S22 , rotating and pressing the portion of the inner spoke 200 corresponding to the edge area of ​​the connecting through hole 201 (ie performing a riveting process) so that the inner spoke 200 is concave inward at the edge area of ​​the connecting through hole 201 and abuts against the positioning end surface β.

[0139] As an optional embodiment of the present invention, step S22 is specifically implemented by a rotary riveting process. Specifically, rotating and pressing the portion of the inner spoke 200 corresponding to the edge area of ​​the connecting through hole 201 may specifically include:

[0140] The portion of the inner spoke 200 corresponding to the edge of the connecting through hole 201 is pressed toward the positioning end face β by the annular pressing tool 10 corresponding to the shape of the positioning end face β, and the annular pressing tool is driven to rotate around the axis of the connecting sleeve 400 (as shown in FIG. Figure 14 shown).

[0141] As another optional embodiment of the present invention, step S22 can also be implemented by other processes, specifically, as Figure 15 As shown, a non-cylindrical side pressing tool 20 may also be used to gradually press the portion of the inner spoke 200 corresponding to the edge area of ​​the connecting through hole 201 inward.

[0142] As an optional embodiment of the present invention, step S2 further includes:

[0143] Step S23: Cut off the portion of the connecting sleeve 400 exposed outside the connecting through hole 201 (eg Figure 16 shown).

[0144] That is, a certain margin is left at the end of the connecting sleeve 400 before the riveting process, which can play a guiding role when the inner spoke 200 material is curled, and the excess material can be cut off after the riveting process is completed.

[0145] As another optional embodiment of the present invention, step S2 may specifically include:

[0146] Step S23: Pass the first end of the connecting sleeve 400 through the mounting through hole 101 , and pass the second end of the connecting sleeve 400 through the connecting through hole 201 ;

[0147] Step S24 , welding the first end of the connecting sleeve 400 to the outer spoke 100 , and welding the second end of the connecting sleeve 400 to the inner spoke 200 .

[0148] As an optional embodiment of the present invention, the wheel further includes a lateral reinforcement 500, and step S2 further includes:

[0149] Insert both ends of the lateral reinforcement member 500 into the outer center hole 102 and the inner center hole 202 respectively;

[0150] The two ends of the lateral reinforcement 500 are welded to the outer spoke 100 and the inner spoke 200 respectively.

[0151] In the embodiment of the present invention, there is no particular limitation on how to provide the rim. For example, the rim blank can be made into the rim by a roll forming process.

[0152] Specifically, the roll forming process includes three rolling steps, and / or the roll forming process includes spinning, expansion, and finishing.

[0153] In the embodiment of the present invention, the rim blank can be formed by using sheet material. Specifically, the sheet material can be processed into the rim blank through steps such as rolling, flattening, butt welding, and removing welding slag.

[0154] In the embodiment of the present invention, there is no particular limitation on how to provide the outer spokes and the inner spokes. For example, the outer spokes and the inner spokes can be formed by hot forming or cold forming.

[0155] Alternatively, the hot forming may include hot stamping, and the cold forming may include cold stamping.

[0156] As a second aspect of the present invention, a wheel is provided, wherein the wheel includes an outer spoke 100, an inner spoke 200, a rim 300 and a lateral reinforcement 500, and the outer spoke 100 and the inner spoke 200 are fixedly connected to the inner wall of the rim 300 in sequence along the axial direction of the rim 300.

[0157] An inner center hole 202 is formed in the center of the inner spoke 200 . The lateral reinforcement member 500 is disposed in the inner center hole 202 . An axle opening is formed at one end of the lateral reinforcement member 500 facing the rim 300 .

[0158] In the wheel provided by the present invention, the hub and spoke portion adopts a double-layer structure composed of outer spokes 100 and inner spokes 200. When the wheel is fixedly connected to the axle, fasteners are installed through the space and fixed to the axle. When the vehicle is turning, the torque transmitted from the axle first acts on the lateral reinforcements 500, then applies force to the outer spokes 100 and inner spokes 200, thereby driving the outer rim 300 to rotate. During this process, the lateral reinforcements 500 apply primarily radial force to the outer spokes 100 and inner spokes 200, respectively. As a result, the thin-walled outer spokes 100 and inner spokes 200 do not have to bear excessive torque, significantly improving the lateral stiffness of the wheel and extending its service life.

[0159] In addition, the outer spoke 100 and the inner spoke 200 are arranged at intervals along the axial direction, and a cavity structure is formed between the two, so that the material of the wheel hub spokes and the total weight of the wheel can be reduced while reducing the bending and torsional stress, thereby reducing the material cost of the wheel and facilitating the lightweighting of the vehicle.

[0160] In the embodiment of the present invention, the specific structure of the lateral reinforcement member 500 is not particularly limited. For example, the lateral reinforcement member 500 may have a tubular structure or a cylindrical structure with a bottom seal. It should be noted that when the lateral reinforcement member 500 is a cylindrical structure with a bottom seal, no through-holes are provided on the outer spoke 100 opposite the lateral reinforcement member 500, and the bottom seal of the lateral reinforcement member 500 faces the outer spoke 100.

[0161] Optionally, an outer center hole 102 is formed in the middle of the outer spoke 100 , and both ends of the lateral reinforcement 500 are fixedly connected to the outer spoke 100 and the inner spoke 200 respectively, and the lateral reinforcement 500 connects the outer center hole 102 with the inner center hole 202 .

[0162] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A wheel, characterized in that: The invention comprises an outer wheel spoke (100), an inner wheel spoke (200) and a rim (300), wherein the outer wheel spoke (100) and the inner wheel spoke (200) are fixedly connected to the inner wall of the rim (300) in sequence along the axial direction of the rim (300), the outer wheel spoke (100) has a plurality of mounting through holes (101), the inner wheel spoke (200) has a plurality of connecting through holes (201), and the positions of the plurality of connecting through holes (201) and the plurality of mounting through holes (101) correspond one to one, and the connecting through holes (201) are fixedly connected to the corresponding mounting through holes (101) to form a fixed connection between the outer wheel spoke (100) and the inner wheel spoke (200). The wheel further comprises a plurality of connecting sleeves (400), the plurality of connecting sleeves (400) corresponding one to one with the plurality of connecting through holes (201), the plurality of connecting sleeves (400) being fixedly arranged between the outer spokes (100) and the inner spokes (200), and the first ends of the connecting sleeves (400) being in communication with the corresponding mounting through holes (101), and the second ends of the connecting sleeves (400) being in communication with the corresponding connecting through holes (201).

2. The wheel according to claim 1, characterized in that The connecting sleeve (400) comprises a sleeve body (403) and a first positioning boss (401), wherein the first positioning boss (401) is arranged on the outer surface of the sleeve body (403) and is located at the first end of the connecting sleeve (400), and the first positioning boss (401) radially protrudes from the outer edge of the mounting through hole (101); The first positioning boss (401) abuts against the outer spoke (100) on the outside of the outer spoke (100), or the first positioning boss (401) abuts against the outer spoke (100) on the inside of the outer spoke (100).

3. The wheel according to claim 2, characterized in that The connecting sleeve (400) comprises a sleeve body (403) and a second positioning boss (402), wherein the second positioning boss (402) is arranged on the outer surface of the sleeve body (403) and is located at the second end of the connecting sleeve (400), and the second positioning boss (402) radially protrudes from the outer edge of the connecting through hole (201); The second positioning boss (402) abuts against the inner spoke (200) on the outside of the inner spoke (200), or the second positioning boss (402) abuts against the inner spoke (200) on the inside of the inner spoke (200).

4. The wheel according to claim 1, characterized in that A plurality of spoke air holes are formed on the wheel, and the plurality of spoke air holes include a plurality of inner spoke air holes (203) and a plurality of outer spoke air holes (103) corresponding to the plurality of inner spoke air holes (203) one by one, the plurality of outer spoke air holes (103) are arranged on the outer spokes (100) and distributed around the axis of the rim, the plurality of inner spoke air holes (203) are arranged on the inner spokes (200), and the plurality of inner spoke air holes (203) are distributed around the axis of the rim, and the inner spoke air holes (203) are connected to the corresponding outer spoke air holes (103).

5. The wheel according to claim 4, characterized in that The outer spoke (100) is recessed inwardly at the edge of the outer spoke air hole (103), and the outer spoke (100) is connected to the edge of the corresponding inner spoke air hole (203) on the inner spoke (200) at the edge of the outer spoke air hole (103).

6. The wheel according to claim 4, characterized in that The outer spoke (100) is welded to the edge of the inner spoke air hole (203) of the inner spoke (200) at the edge of the outer spoke air hole (103).

7. The wheel according to claim 4, characterized in that One of the outer wheel spoke (100) and the inner wheel spoke (200) is folded toward the outside of the opposite wheel spoke air hole at the edge area of ​​the corresponding wheel spoke air hole and fits with the outer surface of the opposite wheel spoke to fix the outer wheel spoke to the inner wheel spoke.

8. The wheel according to claim 4, characterized in that One of the outer spoke and the inner spoke has a plurality of first snap-fit ​​portions (610) at the edge of the corresponding spoke air hole, and the other of the outer spoke and the inner spoke has a plurality of second snap-fit ​​portions (620) at the edge of the corresponding spoke air hole. The plurality of first snap-fit ​​portions (610) and the plurality of second snap-fit ​​portions (620) are snapped in a one-to-one correspondence to fix the outer spoke and the inner spoke together.

9. The wheel according to claim 4, characterized in that An annular groove (310) extending around the axis of the rim is formed on the rim (300), the annular groove (310) is recessed toward the interior of the rim, and an annular inner boss (440) is formed on the inner wall of the rim, the edge of the outer spoke is fixedly connected to the edge of one end of the rim, and the edge of the inner spoke is fixedly connected to the annular inner boss (440).

10. The wheel according to claim 9, characterized in that The inner spoke (200) includes a hub portion (210), a recessed portion (220) and a connecting tube (230), a plurality of connecting through holes (201) are formed on the hub portion (210), the connecting tube (230) surrounds the outer side of the hub portion (210), the recessed portion (220) is connected between the hub portion (210) and the connecting tube (230), and the recessed portion (220) is recessed toward one side of the outer spoke (100), a plurality of inner spoke air holes (203) are formed on the recessed portion (220), and the outer surface of the connecting tube (230) is attached to and fixedly connected to the annular inner boss (440).

11. The wheel according to claim 4, characterized in that The outer spokes are formed integrally with the inner spokes.

12. The wheel according to any one of claims 1 to 11, characterized in that An accommodating cavity is formed between the outer spoke (100) and the inner spoke (200), and the wheel further comprises a sound-absorbing and noise-reducing material filled in the accommodating cavity.

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