Two-spoke steering wheel assembly and vehicle

Abstract

The invention belongs to the technical field of steering wheel assemblies, and particularly relates to a two-spoke steering wheel assembly and a vehicle. Wherein the switch is matched with the decorative cover groove, the fastening column at the bottom of the switch is installed in the second decorative cover hole, the first decorative cover hole is connected with the fastening hole of the switch, the clamping hook at the bottom of the decorative cover is clamped into the foaming hole, the second framework hole, the second decorative cover hole and the fastening column are fastened, and then the rear cover is installed on the steering wheel body. The switch wire harness is clamped into the foaming groove, then is carded upwards and clamped into the first decorative cover clamping hook, and then is carded downwards into the groove in the bottom of the decorative cover fastening column. The safety air bag is arranged in the steering wheel body and the decorative cover and is clamped into the clamping hole of the steering wheel body; space is saved, auxiliary fixing parts such as ribbons or buckles used for fixing the wire harnesses are omitted, assembly difficulty is reduced, working hours are saved, and cost is reduced; and meanwhile, the screw holes are closer to the inner side of the steering wheel and are not easily touched by a driver, so that the user experience is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of steering wheel assemblies, and in particular relates to a two-spoke steering wheel assembly and a vehicle. Background Art

[0002] The steering wheel is an essential part of the car. During its design and development, the following problems need to be solved:

[0003] 1. Layout space and weight issues:

[0004] In the prior art, the steering wheel bottom cover is mostly made of foam material. This structure determines that the bottom cover is heavy, the bottom cover is thicker and needs to occupy more internal space. In the foaming process, the foaming inlet is at the lower side of the handle ring. Since the thickness of the second foaming layer of the handle ring is small, it will affect the flow rate of the foaming material, which is easy to cause surface defects such as pores on the foam bottom cover. For light-colored bottom covers, it is easy to have unqualified light resistance. In addition, the decorative cover is connected to the bottom cover through multiple hooks, which makes it difficult to completely disassemble the decorative cover and switch, increasing maintenance costs.

[0005] 2. Fixing of switches and wiring harnesses:

[0006] In the design of the steering wheel, it is necessary to avoid the switch harness being pulled out during the actual vehicle assembly, which may cause the switch harness to interfere with the airbag and affect the horn function, or the switch harness to be clamped after the airbag is assembled, causing damage to the harness. In the prior art, the switch harness root is fixed with a rolled belt or a cable tie with a hook, which increases the cost; and some car steering wheels use a harness slot, which is costly and increases the assembly time.

[0007] 3. Abnormal sound problem:

[0008] In the prior art, the switch is fixed to the decorative cover by multiple self-tapping screws, and then assembled to the steering wheel foam by multiple hooks. This structure has a movable clamping structure, and the pressing switch is prone to floating and abnormal noise.

[0009] 4. Problems with exposed screw holes and airbag removal holes:

[0010] The screw holes (fastening switches and trim covers) at the rear of some steering wheels are close to the wheel rim, which is easy for the driver to touch, affecting the operating quality. The airbag removal holes of some steering wheels are located at the lower left and right sides, which is easy for the driver to see, affecting the appearance quality.

[0011] 5. Steering wheel disassembly:

[0012] Some steering wheels are not designed for removing the steering wheel structure, resulting in the steering wheel being unable to be removed after assembly on the actual vehicle. During repairs, the steering column must be removed together, increasing repair and maintenance costs. Summary of the invention

[0013] In order to overcome the above problems, the present invention provides a two-spoke steering wheel assembly and a vehicle, which saves space, eliminates auxiliary fixing parts such as cable ties or buckles used to fix the wiring harness, reduces assembly difficulty, saves labor hours, and reduces costs; and avoids abnormal noise when operating the switch. At the same time, the screw holes are closer to the inside of the steering wheel and are not easily touched by the driver, thereby improving the user experience.

[0014] A two-spoke steering wheel assembly includes a steering wheel body 100, a switch 200, a decorative cover 300, a rear cover 400, screws 500 and an airbag 600;

[0015] The left and right sides of the decorative cover 300 are respectively provided with a first decorative cover hole 304, a second decorative cover hole 305, and a decorative cover groove 307 for connecting with the switch 200, and the bottom is provided with a first decorative cover hook 301, a decorative cover fastening column 302, a second hook 303, and a decorative cover snap ring 306;

[0016] The first frame hole 111, the foaming groove 121, the foaming hole 122, and the second frame hole 112 are provided on both sides of the middle frame of the steering wheel body 100. The front and rear ends of the middle part of the middle frame of the steering wheel body 100 are respectively provided with third frame holes 114. The middle frame of the steering wheel body 100 inside the third frame hole 114 is provided with a clamping hole 115 for installing the airbag 600.

[0017] The switch 200 is connected with the decorative cover groove 307 through the positioning rib 203 to realize the pre-positioning of the switch 200 and the decorative cover 300. The fastening column 201 at the bottom of the switch 200 is installed in the second decorative cover hole 305 at the corresponding side of the decorative cover 300. The first decorative cover hole 304 and the fastening hole 202 on the inner side of the switch 200 are connected through the first decorative cover screw 501 to realize the fastening of the switch 200 and the decorative cover 300.

[0018] The subassembly of the switch 200 and the decorative cover 300 is mounted on the steering wheel body 100, wherein the second hook 303 at the bottom of the decorative cover 300 is inserted into the foaming hole 122 to achieve pre-assembly, and the second decorative cover screw 502 passes through the second frame hole 112 and the second decorative cover hole 305 from bottom to top in sequence and is fastened to the fastening column 201 on the outer side of the bottom of the switch 200, thereby fastening the switch 200 and the decorative cover 300 to the steering wheel body 100;

[0019] Then, the rear cover 400 is mounted on the steering wheel body 100, wherein the hook 402 arranged on the upper part of the rear cover 400 is clamped on the decorative cover snap ring 306, and the first fastening hole 401 and the second fastening hole 404 arranged on the upper part of the rear cover 400 are respectively aligned with the first frame hole 111 and the corresponding third frame hole 114, and the first rear cover screw 503 passes through the first fastening hole 401, the first frame hole 111, and the foaming hole 122 in sequence and is fastened to the second hook 303 of the decorative cover, so as to realize the installation between the rear cover 400, the decorative cover 300, the switch 200 and the frame 110; the second rear cover screw 504 passes through the second fastening hole 404 and the third frame hole 114 in sequence and is fastened to the decorative cover fastening column 302, so as to fasten the rear cover 400, the decorative cover 300 and the steering wheel body 100 again;

[0020] The switch harness 204 on the switch 200 is inserted into the foaming groove 121, and then the switch harness 204 is combed upward and inserted into the first decorative cover hook 301, and then the switch harness 204 is combed downward and arranged in the groove at the bottom of the decorative cover fastening column 302; the airbag 600 is installed in the through hole in the middle of the steering wheel body 100 and the through hole in the middle of the decorative cover 300, and is inserted into the connecting hole 115 on the steering wheel body 100 through the hook.

[0021] The steering wheel body 100 includes a skeleton 110, foam 120, and microfiber coating 130; wherein the skeleton 110 includes a disc frame and a middle frame, wherein the middle frame is provided with a steel spline 116 for connecting with a steering column, the surface of the skeleton 110 is provided with foam 120, and the foam 120 on the surface of the disc frame is also coated with microfiber 130.

[0022] The foaming holes 122 are holes designed on the foaming 120 so as to be able to leak out of the first frame holes 111 when the foaming 120 is wrapped on the frame 110 .

[0023] A foaming groove 121 is provided on the foaming 120 on the middle frame of the skeleton 110 .

[0024] The opening direction of the foaming groove 121 is perpendicular to the tension direction of the switch harness 204 after assembly.

[0025] An airbag removal hole 403 is provided at the bottom of one side of the rear cover 400 .

[0026] The steering wheel body 100 is provided with a steering wheel disassembly hole 113 .

[0027] Corresponding through holes are provided on the foaming 120 corresponding to the second skeleton holes 112 , the first skeleton holes 111 , the third skeleton holes 114 , and the second skeleton holes 112 .

[0028] The foaming groove 121 and the foaming hole 122 are both arranged on the foam 120 .

[0029] Beneficial effects of the present invention:

[0030] 1. The present invention adopts a suspended switch and a round airbag, which is more sporty and technological, simple in structure, light in weight, easy to assemble and disassemble, and low in maintenance cost. The steering wheel is applied to the Pentium Yueyi electric vehicle, which reduces weight and cost through design, improves quality, and enhances product competitiveness.

[0031] 2. The present invention first inserts the switch harness into the foaming groove of the steering wheel. The opening direction and direction of the foaming groove are perpendicular to the direction (C direction) of tension on the harness after assembly, which can prevent the switch harness and the switch plug from being damaged by tension, and can also prevent the switch harness from coming out of the foaming groove and interfering with the airbag. The direction of the switch harness is then determined by the first decorative cover hook and the decorative cover fastening column, so that the switch harness is neatly arranged, and the switch harness is prevented from being pulled out when being assembled on the actual vehicle, causing the switch harness to interfere with the airbag and affect the horn function, or the connector at the root of the harness to be damaged by force, causing the switch function to fail. This switch harness layout scheme can save space, eliminate auxiliary fixing parts such as cable ties or buckles used to fix the harness, reduce assembly difficulty, save labor time, and reduce costs.

[0032] 3. The switch and the decorative cover of the present invention are positioned through multiple grooves. The grooves can prevent the left and right switches from being installed incorrectly. Two self-tapping screws are used on the inside of the switch to fix the switch to the switch fastening hole to realize the subassembly of the switch and the decorative cover. Then the second hook of the decorative cover is inserted into the foaming hole to realize the pre-assembly of the switch and the decorative cover subassembly with the steering wheel body. The switch / decorative cover is fixed to the frame on the outside of the switch with the second decorative cover screw. Then the six rear cover hooks are clamped with the six decorative cover snap rings. The six snap rings are arranged in a position that is easy to disassemble. After removing the airbag, the rear cover can be easily removed and the switch can be disassembled for easy maintenance. Then the first rear cover screw is fastened to the hole at the bottom of the second hook of the decorative cover to fasten the rear cover, the decorative cover and the switch subassembly to the frame, which increases the fixing effect of the switch and avoids abnormal noise when operating the switch. At the same time, the screw hole is closer to the inside of the steering wheel and is not easily touched by the driver, which improves the user experience.

[0033] 4. The rear cover of the present invention adopts the injection molding process, and is pre-assembled with the decorative cover by 6 hooks. The hooks are arranged at a position that is easily accessible to the disassembly tool. The rear cover can be disassembled from the airbag assembly hole with a flat-blade screwdriver. This design can reduce the internal space occupation and weight compared to the steering wheel with a foaming process rear cover, and can achieve non-destructive disassembly of switches and decorative covers, reducing the cost of after-sales maintenance. The airbag disassembly holes are arranged at the rear and lower sides of the left and right sides of the rear cover, which are not easily seen by the driver, improving the appearance quality.

[0034] 5. The steering wheel of the present invention is designed with a 2-M8 disassembly hole. The steering wheel can be disassembled using the patented CN202321225681.7 tool, ensuring maintainability and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings used in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without creative work.

[0036] Figure 1 It is a schematic diagram of the overall external structure of the present invention.

[0037] Figure 2 It is a schematic structural diagram of the steering wheel body of the present invention.

[0038] Figure 3 It is a schematic structural diagram of the steering wheel body of the present invention.

[0039] Figure 4 This is a schematic diagram of the switch structure of the present invention.

[0040] Figure 5 It is a structural schematic diagram of one side of the decorative cover of the present invention.

[0041] Figure 6 It is a structural schematic diagram of the other side of the decorative cover of the present invention.

[0042] Figure 7 It is a schematic diagram of the back cover structure of the present invention.

[0043] Figure 8 It is a partial cross-sectional structural schematic diagram of the present invention.

[0044] Fig. 9 for Figure 8 Schematic diagram of partial cross-section structure.

[0045] Fig.10 It is a schematic diagram of the bottom structure of the present invention. DETAILED DESCRIPTION

[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0047] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0050] Example 1

[0051] A two-spoke steering wheel assembly includes a steering wheel body 100, a switch 200, a decorative cover 300, a rear cover 400, screws 500 and an airbag 600;

[0052] The left and right sides of the decorative cover 300 are respectively provided with a first decorative cover hole 304, a second decorative cover hole 305, and a decorative cover groove 307 for connecting with the switch 200, and the bottom is provided with a first decorative cover hook 301, a decorative cover fastening column 302, a second hook 303, and a decorative cover snap ring 306;

[0053] The first frame hole 111, the foaming groove 121, the foaming hole 122, and the second frame hole 112 are provided on both sides of the middle frame of the steering wheel body 100. The front and rear ends of the middle part of the middle frame of the steering wheel body 100 are respectively provided with third frame holes 114. The middle frame of the steering wheel body 100 inside the third frame hole 114 is provided with a clamping hole 115 for installing the airbag 600.

[0054] The switch 200 is connected with the decorative cover groove 307 through the positioning rib 203 to realize the pre-positioning of the switch 200 and the decorative cover 300. The fastening column 201 at the bottom of the switch 200 is installed in the second decorative cover hole 305 at the corresponding side of the decorative cover 300. The first decorative cover hole 304 and the fastening hole 202 on the inner side of the switch 200 are connected through the first decorative cover screw 501 to realize the fastening of the switch 200 and the decorative cover 300.

[0055] The subassembly of the switch 200 and the decorative cover 300 is mounted on the steering wheel body 100, wherein the second hook 303 at the bottom of the decorative cover 300 is inserted into the foaming hole 122 to achieve pre-assembly, and the second decorative cover screw 502 passes through the second frame hole 112 and the second decorative cover hole 305 from bottom to top in sequence and is fastened to the fastening column 201 on the outer side of the bottom of the switch 200, thereby fastening the switch 200 and the decorative cover 300 to the steering wheel body 100;

[0056] Then, the rear cover 400 is mounted on the steering wheel body 100, wherein the hook 402 arranged on the upper part of the rear cover 400 is clamped on the decorative cover snap ring 306, and the first fastening hole 401 and the second fastening hole 404 arranged on the upper part of the rear cover 400 are respectively aligned with the first frame hole 111 and the corresponding third frame hole 114, and the first rear cover screw 503 passes through the first fastening hole 401, the first frame hole 111, and the foaming hole 122 in sequence and is fastened to the second hook 303 of the decorative cover, so as to realize the installation between the rear cover 400, the decorative cover 300, the switch 200 and the frame 110; the second rear cover screw 504 passes through the second fastening hole 404 and the third frame hole 114 in sequence and is fastened to the decorative cover fastening column 302, so as to fasten the rear cover 400, the decorative cover 300 and the steering wheel body 100 again;

[0057] The switch harness 204 on the switch 200 is inserted into the foaming groove 121, and then the switch harness 204 is combed upward and inserted into the first decorative cover hook 301, and then the switch harness 204 is combed downward and arranged in the groove at the bottom of the decorative cover fastening column 302; the airbag 600 is installed in the through hole in the middle of the steering wheel body 100 and the through hole in the middle of the decorative cover 300, and is inserted into the clamping hole 115 on the steering wheel body 100 through three hooks to complete the vehicle assembly.

[0058] The steering wheel body 100 includes a skeleton 110, foam 120, and microfiber coating 130; wherein the skeleton 110 includes a disc frame and a middle frame, wherein the middle frame is provided with a steel spline 116 for connecting with a steering column, the surface of the skeleton 110 is provided with foam 120, and the foam 120 on the surface of the disc frame is also coated with microfiber 130.

[0059] The foaming holes 122 are holes designed on the foaming 120 so as to be able to leak out of the first frame holes 111 when the foaming 120 is wrapped on the frame 110 .

[0060] A foaming groove 121 is formed on the foaming 120 on the middle frame of the skeleton 110 .

[0061] The opening direction of the foaming groove 121 is perpendicular to the tension direction of the switch harness 204 after assembly.

[0062] An airbag removal hole 403 is provided at the bottom of one side of the rear cover 400, and a flat-blade screwdriver can be inserted into the steering wheel through the airbag removal hole 403 to remove the airbag 600.

[0063] The steering wheel body 100 is provided with a steel spline 116 , and the steering wheel body 100 is fastened to the steering column through the steel spline 116 and a nut.

[0064] The steering wheel body 100 is provided with a steering wheel disassembly hole 113, and a special tool can be used to disassemble the steering wheel body 100 from the steering column (after the steering wheel and the conical surface of the steering column are tightened, the disassembly force is large and it is difficult to disassemble manually).

[0065] Corresponding through holes are provided on the foam 120 corresponding to the second skeleton holes 112 , the first skeleton holes 111 , the third skeleton holes 114 , and the second skeleton holes 112 .

[0066] The foaming groove 121 and the foaming hole 122 are both arranged on the foam 120 .

[0067] Example 2

[0068] The steering wheel is composed of a steering wheel body 100, a switch 200, a decorative cover 300, a rear cover 400, screws 500 and an airbag 600. Figure 1 The switch 200, the decorative cover 300, and the rear cover 400 are installed in the steering wheel body 100 and fastened with screws 500, and the airbag 600 is inserted into the matching hole 115 of the steering wheel body through three hooks. The steering wheel is installed on the upper end of the steering column through the steel spline 116 to enable the driver to control the vehicle. In the process of vehicle collision, the airbag 600 is deployed, the steering wheel body 100 supports the airbag 600 and bends to absorb energy, and the steering column collapses to absorb energy, which protects the driver together with the seat belt, thereby improving the collision safety of the vehicle.

[0069] 2. The steering wheel body 100 is composed of a frame 110, a foam 120, and a microfiber coating 130. The frame 110 is die-casted with a magnesium-aluminum alloy material and includes a steel spline 116 for fixing the steering wheel to the top of the steering column. A polyurethane foam 120 is provided on the surface of the frame 110, which wraps the frame 110 to form the outline of the steering wheel rim and the bottom support structure and snap-on hole of the switch, while absorbing vibration. Then the surface of the foam 120 in the circular rim part is coated with microfiber 130 to enhance the quality of the steering wheel. Then install the switch 200 and the decorative cover 300 to wrap the front of the steering wheel body 100, and install the rear cover 400 to wrap the back of the steering wheel body 100. It is simple to install and easy to disassemble and repair.

[0070] 4. Install the outer fastening column 201 at the bottom of the switch 200 into the second decorative cover hole 305. The switch 200 is pre-positioned with the decorative cover groove 307 through the positioning rib 203 to avoid wrong installation of the left and right switches. The first decorative cover screw 501 is passed through the first decorative cover hole 304 and the fastening hole 202 inside the switch 200 in sequence to achieve the fastening of the switch 200 and the decorative cover 300, and the subassembly of the switch 200 and the decorative cover 300 is completed. Plug in the switch harness 204.

[0071] 5. Then install the sub-assembly of the switch 200 and the decorative cover 300 into the steering wheel body 100, wrapping the front of the steering wheel body 100. Use the second hook 303 at the bottom of the decorative cover 300 to snap into the foaming hole 122 to pre-assemble the switch 200, the decorative cover 300 and the steering wheel body 100. Use the second decorative cover screw 502 to pass through the second frame hole 112, the second decorative cover hole 305 and the switch outer fastening column 201 from bottom to top, and fasten the switch 200 and the decorative cover 300 to the frame 110. At the same time, strengthen the fastening of the switch 200 and the decorative cover 300 to prevent the switch fastening screws from being exposed.

[0072] 6. First, insert the switch harness 204 into the foaming groove 121. The opening direction and direction of the foaming groove 121 are perpendicular to the tension direction (direction C) of the switch harness after assembly, which can prevent the switch harness 204 and the plug of the switch 200 from being damaged by tension, and can also prevent the switch harness 204 from being dislodged from the foaming groove 121 and interfering with the airbag 600. Comb the switch harness 204 upward and insert it into the first decorative cover hook 301, then comb the switch harness 204 downward and arrange it in the bottom groove of the decorative cover fastening column 302, so as to prevent the switch harness 204 from being pulled out and clamped by the airbag 600 during final assembly.

[0073] 7. Install the rear cover 400 into the steering wheel body 100 to wrap the rear part of the steering wheel. Align the first fastening hole 401 and the second fastening hole 404 of the rear cover 400 with the first frame hole 111 and the third frame hole 114 respectively, and snap the six hooks 402 of the rear cover with the decorative cover snap rings 306 to achieve pre-assembly. The six decorative cover snap rings 306 are arranged at positions on the decorative cover 300 that are easy to disassemble. After removing the airbag 600, the rear cover 400 can be easily removed, and the switch 200 can be removed for easy maintenance. Use the first rear cover screw 503 to pass through the first fastening hole 401 of the rear cover, the first frame hole 111, the foaming snap-on hole 122, and the fastening hole at the bottom of the second hook 303 of the decorative cover in sequence, and fasten the rear cover 400, the decorative cover 300 and the sub-assembly of the switch 200 to the frame 110 at the same time, thereby increasing the fixing effect of the switch 200 and avoiding abnormal noise after operating the switch 200. At the same time, the first fastening hole 401 of the rear cover is closer to the inside of the steering wheel and is not easily touched by the driver, thereby improving the user experience. Use the second rear cover screw 504 to pass through the second fastening hole 404 of the rear cover, the third frame hole 114, and the decorative cover fastening column 302 in sequence, and fasten the rear cover 400, the decorative cover 300 and the frame 110 again to ensure the support and gap surface difference in the middle area of ​​the decorative cover 300 and avoid abnormal noise due to pressing.

[0074] 8. The airbag removal hole 403 is arranged at the rear of the bottom of one side of the rear cover 400, which is not easily seen by the driver, thereby improving the appearance quality.

[0075] 9. The patented steering wheel is designed with 2-M8 disassembly hole 113. The patented CN202321225681.7 tool can be used to disassemble the steering wheel, ensuring maintainability and reducing maintenance costs.

[0076] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the protection scope of the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention. These simple variations all belong to the protection scope of the present invention.

[0077] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0078] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A two-spoke steering wheel assembly, characterized in that: It comprises a steering wheel body (100), a switch (200), a decorative cover (300), a rear cover (400) and a safety airbag (600); The left and right sides of the decorative cover (300) are respectively provided with a first decorative cover hole (304), a second decorative cover hole (305), and a decorative cover groove (307) for connecting with the switch (200), and the bottom is provided with a first decorative cover hook (301), a decorative cover fastening column (302), a second hook (303), and a decorative cover snap ring (306); The first frame hole (111), the foaming groove (121), the foaming hole (122), and the second frame hole (112) are provided on both sides of the middle frame of the steering wheel body (100); the third frame holes (114) are provided at the front and rear ends of the middle of the middle frame of the steering wheel body (100); and the middle frame of the steering wheel body (100) inside the third frame hole (114) is provided with a clamping hole (115) for installing the safety airbag (600); The switch (200) is connected with the decorative cover groove (307) through the positioning rib (203) to achieve pre-positioning of the switch (200) and the decorative cover (300); the fastening column (201) at the bottom of the switch (200) is inserted into the second decorative cover hole (305) at the corresponding side of the decorative cover (300); the first decorative cover hole (304) and the fastening hole (202) on the inner side of the switch (200) are connected through the first decorative cover screw (501) to achieve fastening of the switch (200) and the decorative cover (300); The subassembly of the switch (200) and the decorative cover (300) is mounted on the steering wheel body (100), wherein the second hook (303) at the bottom of the decorative cover (300) is inserted into the foaming hole (122) to achieve pre-assembly, and the second decorative cover screw (502) passes through the second frame hole (112), the second decorative cover hole (305) and the fastening column (201) on the outer side of the bottom of the switch (200) from bottom to top in sequence to fasten the switch (200) and the decorative cover (300) to the steering wheel body (100); The rear cover (400) is then mounted on the steering wheel body (100), wherein the hook (402) disposed on the upper portion of the rear cover (400) is clamped on the decorative cover clamp ring (306), the first fastening hole (401) and the second fastening hole (404) disposed on the upper portion of the rear cover (400) are respectively aligned with the first frame hole (111) and the corresponding third frame hole (114), and the first rear cover screw (503) is sequentially passed through the first fastening hole (401), the first frame hole (111), and the third frame hole (114). (111) and the foaming hole (122) are fastened to the second hook (303) of the decorative cover to realize the installation between the rear cover (400), the decorative cover (300), the switch (200) and the frame (110); the second rear cover screw (504) passes through the second fastening hole (404) and the third frame hole (114) in sequence and is fastened to the decorative cover fastening column (302) to fasten the rear cover (400), the decorative cover (300) and the steering wheel body (100) again; The switch harness (204) on the switch (200) is inserted into the foaming groove (121), and then the switch harness (204) is combed upward and inserted into the first decorative cover hook (301), and then the switch harness (204) is combed downward and arranged in the groove at the bottom of the decorative cover fastening column (302); the safety airbag (600) is installed in the through hole in the middle of the steering wheel body (100) and the through hole in the middle of the decorative cover (300), and is inserted into the clamping hole (115) on the steering wheel body (100) through the clamping hook.

2. A two-spoke steering wheel assembly according to claim 1, characterized in that: The steering wheel body (100) comprises a frame (110), foam (120), and microfiber coating (130); wherein the frame (110) comprises a disc frame and a middle frame, wherein the middle frame is provided with a steel spline (116) for connecting with a steering column, the surface of the frame (110) is provided with foam (120), and the foam (120) on the surface of the disc frame is also coated with microfiber (130).

3. The two-spoke steering wheel assembly according to claim 1, characterized in that: The foaming holes (122) are holes designed on the foaming (120) so as to be able to leak out of the first skeleton holes (111) when the foaming (120) is wrapped on the skeleton (110).

4. The two-spoke steering wheel assembly according to claim 1, characterized in that: A foaming groove (121) is provided on the foaming (120) on the middle frame of the skeleton (110).

5. The two-spoke steering wheel assembly according to claim 1, characterized in that: The opening direction of the foaming groove (121) is perpendicular to the tension direction of the switch harness (204) after assembly.

6. The two-spoke steering wheel assembly according to claim 1, characterized in that: A safety airbag disassembly hole (403) is provided at the bottom of one side of the rear cover (400).

7. The two-spoke steering wheel assembly according to claim 1, characterized in that: The steering wheel body (100) is provided with a steering wheel disassembly hole (113).

8. The two-spoke steering wheel assembly according to claim 1, characterized in that: Corresponding through holes are provided on the foam (120) corresponding to the second skeleton holes (112), the first skeleton holes (111), the third skeleton holes (114), and the second skeleton holes (112).

9. The two-spoke steering wheel assembly according to claim 1, characterized in that: The foaming groove (121) and the foaming hole (122) are both arranged on the foam (120).

10. A vehicle with a two-spoke steering wheel assembly, characterized in that: The vehicle is equipped with the two-spoke steering wheel assembly according to any one of claims 1 to 9.

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