Steering wheel damping device and steering wheel

Abstract

The invention provides a steering wheel damping device and a steering wheel, the steering wheel damping device comprises a fixing support and a steering wheel framework, the fixing support is at least a part of structure of a safety air bag module, and a damping assembly is arranged between the fixing support and the steering wheel framework; the vibration reduction assembly comprises a connecting piece, a sleeve, an elastic piece, a clamping ring, a spring bushing and a spring, and the connecting piece penetrates through a first through hole of the fixing support and a second through hole of the steering wheel framework to achieve connection of the fixing support and the steering wheel framework; the connecting piece is sleeved with the sleeve, the elastic piece is annular and is arranged on the sleeve of the connecting piece in a sleeved mode, a circle of groove is formed in the periphery of the elastic piece in the circumferential direction, the clamping ring is clamped in the groove in a sleeved mode so that the periphery of the elastic piece can be clamped on the clamping ring in a sleeved mode, and the spring bush is arranged on the connecting piece in a sleeved mode and located on the side, close to the steering wheel framework, of the elastic piece. One end of the spring abuts against the steering wheel framework, and the other end of the spring is used for supporting the elastic piece. The vibration sense is reduced through the vibration reduction assembly, the comfort degree is improved, the structure is simple, and the assembly difficulty is low.

Description

Technical Field

[0001] This application relates to the technical field of steering wheels, specifically to a steering wheel damping device, and also to a steering wheel. Background Art

[0002] With the rapid development of the automotive industry, cars have now entered every household and become one of the essential means of transportation for people's daily travel. Currently, people have higher and higher requirements for the safety, comfort, etc. of cars. As is well known, the steering wheel is one of the important components of a car, and the driver can correctly control the driving direction of the car by controlling the steering wheel.

[0003] However, due to factors such as uneven road surfaces or curved roads during the driving process of the car, there will be transmitted vibrations in the steering system of the car, and this vibration will be transmitted to the steering wheel of the car, which will further cause the steering wheel and the airbag module arranged on the steering wheel to shake or vibrate, thus affecting the stability and comfort of the car driving process.

[0004] Therefore, how to improve the stability of the steering wheel to improve driving comfort and reduce the assembly difficulty has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] This application provides a steering wheel damping device to solve the technical problem of how to improve the stability of the steering wheel in the prior art, which can improve driving comfort and at the same time reduce the assembly difficulty. This application also provides a steering wheel using the above-mentioned steering wheel damping device.

[0006] This application provides a steering wheel damping device, including: a fixed bracket and a steering wheel skeleton, the fixed bracket is at least part of the structure of the airbag module, and a damping component is arranged between the fixed bracket and the steering wheel skeleton;

[0007] The damping component includes a connecting piece, a sleeve, an elastic member, a snap ring, a spring bushing and a spring. The connecting piece passes through a first through hole on the fixed bracket and a second through hole on the steering wheel skeleton to realize the connection between the fixed bracket and the steering wheel skeleton;

[0008] The sleeve is sleeved on the connecting piece. The elastic member is of an annular structure and is sleeved on the sleeve of the connecting piece. A groove is arranged in a circumferential circle on the outer periphery of the elastic member, and the snap ring is snap-fitted in the groove so that the outer periphery of the elastic member is snap-fitted on the snap ring. The spring bushing is sleeved on the connecting piece and is located on the side of the elastic member close to the steering wheel skeleton. The spring is sleeved outside the spring bushing. One end of the spring abuts against the steering wheel skeleton, and the other end of the spring is used to support the elastic member.

[0009] Optionally, a first card slot is provided on the connecting member, and one end of the spring bushing close to the steering wheel skeleton is clamped in the first card slot.

[0010] Optionally, a claw bent inward is provided at one end of the spring bushing close to the steering wheel skeleton, and the claw is clamped in the first card slot.

[0011] Optionally, a turned-up edge is provided at one end of the spring bushing close to the fixed bracket, and the turned-up edge abuts against the elastic member, so that the other end of the spring supports the elastic member by abutting against the turned-up edge.

[0012] Optionally, the radial size of the spring gradually increases from the first end of the spring to the second end of the spring. The first end of the spring is the end close to the fixed bracket, and the second end of the spring is the end close to the steering wheel skeleton.

[0013] Optionally, a preset area is cut on opposite sides of one end of the elastic member to form a plane. Protrusions protruding upward are provided at opposite side positions on the snap ring. The plane is adapted to the inner table surface of the protrusion, so as to realize the radial fixation of the snap ring and the elastic member through the contact between the plane and the table surface.

[0014] Optionally, protrusions protruding outward are provided on opposite sides of the outer periphery of the snap ring. A second card slot is provided on the protrusion, and the second card slot is used to fix the end of the fixed bracket, so that the fixed bracket is fixed on the damping assembly.

[0015] Optionally, a first convex block is provided on the top surface of the turned-up edge, and the first convex block is clamped with a third card slot provided on the end surface of the end of the elastic member that abuts against the spring bushing.

[0016] Optionally, a plurality of second convex blocks are arranged at intervals along the circumferential direction in the groove, and each of the second convex blocks abuts against different positions on the inner side surface of the snap ring to limit the radial movement of the elastic member relative to the snap ring.

[0017] The present application also provides a steering wheel, and the steering wheel includes the steering wheel damping device described in any one of the above.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] The present application provides a steering wheel damping device, comprising: a fixed bracket and a steering wheel skeleton. The fixed bracket is at least part of the structure of the airbag module. A damping component is provided between the fixed bracket and the steering wheel skeleton. The damping component includes a connecting piece, a sleeve, an elastic member, a snap ring, a spring bushing and a spring. The connecting piece passes through a first through hole on the fixed bracket and a second through hole on the steering wheel skeleton to connect the fixed bracket and the steering wheel skeleton. The sleeve is sleeved on the connecting piece. The elastic member is of an annular structure and is sleeved on the sleeve of the connecting piece. A circumferential groove is provided on the outer periphery of the elastic member. The snap ring is sleeved in the groove so that the outer periphery of the elastic member is sleeved on the snap ring. The spring bushing is sleeved on the connecting piece and is located on the side of the elastic member close to the steering wheel skeleton. The spring is sleeved outside the spring bushing. One end of the spring abuts against the steering wheel skeleton, and the other end of the spring is used to support the elastic member.

[0020] A steering wheel damping device provided by the present application. The steering wheel damping device includes a fixed bracket and a steering wheel skeleton. The fixed bracket is at least part of the structure of the airbag module. A damping component is provided between the fixed bracket and the steering wheel skeleton. The fixed bracket and the steering wheel skeleton are connected by the damping component, and the damping component can effectively relieve or reduce the vibration of the airbag module and the steering wheel. Among them, the damping component includes a connecting piece, a sleeve, an elastic member, a snap ring, a spring bushing and a spring, which can form an integral body of the airbag module and the steering wheel skeleton, similar to a larger damping module, so as to eliminate or absorb the vibration transmitted from the whole vehicle to the steering wheel, thereby reducing the vibration feeling, and can better improve the physical feeling of the driver during driving. Moreover, the structure of the damping component is relatively simple, with higher reliability, can also reduce the assembly difficulty, and can also reduce the cost. Description of the Drawings

[0021] Figure 1 is a cross-sectional view of the steering wheel damping device provided by the embodiment of the present application.

[0022] Figure 2 is a cross-sectional view of the damping component provided by the embodiment of the present application.

[0023] Figure 3 is a schematic structural view of the sleeve sleeved on the connecting piece provided by the embodiment of the present application.

[0024] Figure 4 is a schematic structural view of the elastic member provided by the embodiment of the present application.

[0025] Figure 5 is a schematic structural view of the spring bushing provided by the embodiment of the present application.

[0026] Figure 6 It is a schematic structural diagram of the snap ring provided by the embodiment of the present application.

[0027] Reference numerals:

[0028] 10: Fixed bracket;

[0029] 20: Steering wheel skeleton; 201: Second through hole;

[0030] 30: Vibration damping component; 301: Connecting piece; 3011: First card slot; 3012: Fourth card slot; 302: Sleeve;

[0031] 303: Elastic member; 3031: Groove; 3031-1: Second convex block; 3032: Plane;

[0032] 304: Snap ring; 3041: Boss; 3042: Protrusion; 3042-1: Second card slot;

[0033] 305: Spring bushing; 3051: Claw; 3052: Folded edge; 3052-1: First convex block;

[0034] 306: Spring;

[0035] 40: Circlip. Detailed implementation manners

[0036] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementations disclosed below.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] In the related art, during the driving process of an automobile, due to factors such as uneven road surfaces or relatively curved roads, there is transmission vibration in the steering system of the automobile. This vibration will be transmitted to the steering wheel, which will further cause the steering wheel and the airbag module arranged on the steering wheel to vibrate, thus affecting the driving stability and comfort.

[0040] In view of this, the present application provides a steering wheel vibration damping device, including: a fixed bracket and a steering wheel skeleton. The fixed bracket is at least part of the structure of the airbag module. A vibration damping component is arranged between the fixed bracket and the steering wheel skeleton; the vibration damping component includes a connecting piece, a sleeve, an elastic piece, a snap ring, a spring bushing and a spring. The connecting piece passes through a first through hole on the fixed bracket and a second through hole on the steering wheel skeleton to realize the connection between the fixed bracket and the steering wheel skeleton; the sleeve is sleeved on the connecting piece. The elastic piece is of an annular structure and is sleeved on the sleeve of the connecting piece. A groove is arranged in a circumferential circle on the outer periphery of the elastic piece. The snap ring is snap-fitted in the groove so that the outer periphery of the elastic piece is snap-fitted on the snap ring. The spring bushing is sleeved on the connecting piece and is located on the side of the elastic piece close to the steering wheel skeleton. The spring is sleeved outside the spring bushing. One end of the spring abuts against the steering wheel skeleton, and the other end of the spring is used to support the elastic piece.

[0041] The steering wheel vibration damping device provided by the present application includes a fixed bracket and a steering wheel skeleton. The fixed bracket is at least part of the structure of the airbag module. A vibration damping component is arranged between the fixed bracket and the steering wheel skeleton. The fixed bracket and the steering wheel skeleton are connected through the vibration damping component, and the vibration damping component can effectively relieve or reduce the vibration of the airbag module and the steering wheel. Among them, the vibration damping component includes a connecting piece, a sleeve, an elastic piece, a snap ring, a spring bushing and a spring, which can make the airbag module and the steering wheel skeleton form a whole, similar to a larger vibration damping module, so as to eliminate or absorb the vibration transmitted from the whole vehicle to the steering wheel, thereby reducing the vibration feeling and better improving the physical feeling during driving. Moreover, the structure of the vibration damping component is relatively simple, and at the same time, it can improve reliability, reduce the assembly difficulty, and also reduce the cost.

[0042] Next, the application of the steering wheel vibration damping device will be described in detail with reference to the drawings of the present application.

[0043] Figure 1 It is a cross-sectional view of the steering wheel vibration damping device provided by an embodiment of the present application. Figure 2 It is a cross-sectional view of the vibration damping component provided by an embodiment of the present application. Figure 3 It is a schematic structural diagram of the sleeve sleeved on the connecting piece provided by an embodiment of the present application. Figure 4It is a schematic structural diagram of an elastic member provided by an embodiment of the present application. Figure 5 It is a schematic structural diagram of a spring bushing provided by an embodiment of the present application. Figure 6 It is a schematic structural diagram of a snap ring provided by an embodiment of the present application.

[0044] As Figure 1-2 shown, the present application provides a steering wheel damping device, the steering wheel damping device includes a fixed bracket 10 and a steering wheel skeleton 20, the fixed bracket 10 is at least part of the structure of the airbag module, and a damping component is provided between the fixed bracket 10 and the steering wheel skeleton 20. The airbag module is fixed above the fixed bracket 10, that is, the fixed bracket 10 is used to support the airbag module. The fixed bracket 10, as the fixing structure of the airbag module, can provide physical support for the airbag module and also plays a key role in ensuring that the airbag module can be deployed correctly and quickly when the vehicle collides, which is crucial for protecting the safety of vehicle occupants. The steering wheel skeleton 20, as the basic framework of the steering wheel, bears the weight and stress of the entire steering wheel assembly, and it provides a solid support for the covering material (such as plastic, leather, etc.) on the outer layer of the steering wheel and the internal functional components (such as airbag module, control buttons, etc.).

[0045] During the driving process or when a collision occurs in the vehicle, strong vibrations will be transmitted into the vehicle, and it is necessary to effectively relieve the vibrations and impacts transmitted into the vehicle through the damping component 30. Therefore, a damping component 30 is provided between the fixed bracket 10 and the steering wheel skeleton 20, that is to say, the airbag module and the steering wheel skeleton 20 can be connected through the damping component 30, and moreover, the damping component 30 can effectively relieve or reduce the vibrations of the airbag module and the steering wheel, that is, the weight of the airbag module is applied to the damping component 30. Within a certain range, the heavier the airbag module, the better the damping effect, which can better improve the body feeling during driving and provide a more comfortable driving environment for the driver.

[0046] As Figure 1-3 shown, the damping component 30 includes a connecting piece 301, a sleeve 302, an elastic member 303, a snap ring 304, a spring bushing 305 and a spring 306. The connecting piece 301 passes through the first through hole on the fixed bracket 10 and the second through hole 201 on the steering wheel skeleton 20 to realize the connection between the fixed bracket 10 and the steering wheel skeleton 20.

[0047] Specifically, the shock absorption assembly 30 includes a connecting member 301, a sleeve 302, an elastic member 303, a snap ring 304, a spring bushing 305, and a spring 306. A first through hole is provided on the fixed bracket 10, and a second through hole 201 is provided on the steering wheel skeleton 20 at a position opposite to the first through hole. When the connecting member 301 passes through the first through hole and the second through hole 201, the connecting member 301 can pass through the first through hole to realize the connection between the shock absorption assembly 30 and the fixed bracket 10. It should be noted that when the connecting member 301 passes through the first through hole and the second through hole 201 and is clamped on the fourth card slot 3012 of the connecting member 301 by a snap spring 40 below the steering wheel skeleton, the connection between the shock absorption assembly and the steering wheel skeleton can be realized. That is to say, when the connecting member 301 passes through the first through hole and the second through hole 201 and is cooperated with the snap spring 40 below the steering wheel skeleton, the connection between the fixed bracket and the steering wheel can be realized.

[0048] It should be noted that in the embodiment of the present application, the specific number of the shock absorption assemblies 30 can be determined according to the actual working conditions. For example, three shock absorption assemblies 30 can be provided. Of course, it can also be other numbers, as long as it meets the industry and work requirements. Among them, the connecting member 301 can be a screw, a pin, or of course other structures, and no further listing will be made here.

[0049] Next, the connection between the various parts of the shock absorption assembly 30 will be described in detail. The shock absorption assembly 30 includes a connecting member 301, a sleeve 302, an elastic member 303, a snap ring 304, a spring bushing 305, and a spring 306. As Figure 3 shown, the sleeve 302 is sleeved on the connecting member 301, and the elastic member 303 is in a ring structure and is sleeved on the sleeve 302 of the connecting member 301.

[0050] As Figure 2 shown, the sleeve 302 is located inside the elastic member 303, that is, the sleeve 302 is directly connected to the connecting member 301 and is located between the connecting member 301 and the elastic member 303. The sleeve 302 can be made of plastic material or fiber composite material, etc. The sleeve 302 can be sleeved on the front section of the connecting member 301 by plastic coating, that is, the sleeve 302 is wrapped around the front section of the connecting member 301. Of course, the sleeve 302 can also be sleeved on the front section of the connecting member 301 by other methods, such as self-locking nuts, welding, etc. As long as the sleeve 302 can be sleeved on the front section of the connecting member 301, no further listing will be made here.

[0051] As Figure 3As shown, the sleeve 302 includes an outwardly extending annular portion disposed at the first end of the sleeve 302. The upper end surface of the annular portion abuts against the head end of the front section of the connecting member 301, and the lower end surface of the annular portion is clamped to the inner side surface of the elastic member 303. It can be understood that the annular portion can block the elastic member 303 sleeved on the sleeve 302 to prevent the elastic member 303 from axially moving upward along the sleeve 302.

[0052] As Figure 2 shown, the elastic member 303 is of an annular structure and is sleeved on the sleeve 302 of the connecting member 301. That is to say, the sleeve 302 is located between the connecting member 301 and the elastic member 303, which can avoid direct contact between the elastic member 303 and the connecting member 301. Generally, the connecting member 301 is made of metal and the elastic member 303 is made of rubber. If the elastic member 303 is directly sleeved on the connecting member 301, the sulfide in the rubber may corrode the metal. Therefore, a sleeve 302 needs to be provided between the connecting member 301 and the elastic member 303. The sleeve 302 can prevent the sulfide in the rubber of the elastic member 303 from corroding the connecting member 301, and the sleeve 302 can also reduce the wear of the elastic member 303 and extend the service life of the damping assembly 30.

[0053] A groove 3031 is provided in a circumferential circle on the outer periphery of the elastic member 303, and the snap ring 304 is clamped in the groove 3031 so that the outer periphery of the elastic member 303 is sleeved on the snap ring 304. Specifically, the elastic member 303 is of an annular structure. The annular elastic member 303 includes an end portion and a central portion. The end portion includes a first end portion and a second end portion opposite to the first end portion. The central portion is located between the first end portion and the second end portion, that is, the first end portion and the second end portion are connected by the central portion. A through hole is provided in the central portion so that the central portion is a hollow structure. The through hole is for accommodating the sleeve 302, that is, the second end of the sleeve 302 passes through the through hole so that the elastic member 303 is sleeved on the sleeve 302. The structures of the first end portion and the second end portion may be the same or different. For example, the diameters of the first end portion and the second end portion may be equal or unequal, but it should be noted that the diameters of both the first end portion and the second end portion are larger than the diameter of the central portion.

[0054] As Figure 2 and Figure 4As shown, a groove 3031 is provided on the outer periphery of the elastic member 303 in a circumferential circle, that is, the groove 3031 is provided on the outer periphery of the central portion. The groove 3031 is formed by the first end portion and the second end portion. Since the diameters of both the first end portion and the second end portion are larger than that of the central portion located at the middle position, the diameters of the opposite ends of the annular elastic member 303 are large, and the diameter of the central portion at the middle position is small. Thus, a circumferential groove 3031 is formed on the outer periphery of the central portion.

[0055] The groove 3031 is for clamping the snap ring 304. The structure of the snap ring 304 is adapted to the groove 301 to facilitate clamping the groove in the snap ring 3031. It should be noted that in the actual installation process, the snap ring and the fixed bracket are integrally formed by overmolding, that is, the elastic member is installed inside the snap ring.

[0056] A plurality of second protrusions 3031-1 are provided at intervals in the circumferential direction in the groove 3031. Each of the second protrusions 3031-1 abuts against different positions on the inner side surface of the snap ring to limit the radial movement of the elastic member relative to the snap ring. Specifically, second protrusions 3031-1 are provided in the groove 3031, and the number of the second protrusions 3031-1 is plural. The plurality of second protrusions 3031-1 can be evenly and spacedly arranged in the groove 3031. In the embodiment of the present application, the number of the second protrusions 3031-1 and the arrangement positions of the second protrusions 3031-1 are not limited as long as the working requirements are met.

[0057] Each of the second protrusions 3031-1 abuts against different positions on the inner side surface of the snap ring. At this time, each of the second protrusions 3031-1 can provide a positioning function for the elastic member 303 to keep the elastic member 303 and the snap ring 304 in a coaxial position, and can also limit the radial movement of the elastic member 303 along the snap ring 304 to ensure that the elastic member can be fixed on the inner side surface of the snap ring. It should also be noted that the plurality of second protrusions 3031-1 are spaced apart. When the elastic member is clamped on the inner side surface of the snap ring, a gap exists between the elastic member and the snap ring. The gap can provide buffering during the vibration of the vehicle and play a role in damping vibration.

[0058] In addition, as Figure 2 and Figure 6 shown, outwardly protruding protrusion portions 3042 are provided on opposite sides of the outer periphery of the snap ring 304. Second card slots 3042-1 are provided on the protrusion portions 3042 for fixing the end portion of the fixed bracket so that the fixed bracket is fixed on the vibration damping assembly 30.

[0059] Specifically, the outer periphery of the elastic member is installed inside the snap ring, that is, the groove 3031 of the elastic member is clamped and fixed to the inner side surface of the snap ring 304. On opposite sides of the outer periphery of the snap ring 304, there are protruding portions 3042 protruding outward. The protruding portion 3042 includes a first protruding panel and a second protruding panel. A second card slot 3042-1 is formed between the first protruding panel and the second protruding panel. That is to say, the second card slot 3042-1 is formed by the gap between the first protruding panel and the second protruding panel. The second card slot 3042-1 is used to fix the end of the fixing bracket so that the fixing bracket is fixed on the damping assembly 30. That is to say, the size of the second card slot 3042-1 is adapted to the size of the end of the fixing bracket.

[0060] In the embodiment of the present application, the protruding portion 3042 includes a first protruding portion and a second protruding portion. The first protruding portion and the second protruding portion are oppositely arranged on the outer periphery of the snap ring 304, and the structures of the first protruding portion and the second protruding portion are the same.

[0061] On opposite sides of one end of the elastic member 303, a preset area is cut to form a plane 3032. On opposite sides of the snap ring, there are bosses protruding upward. The plane 3032 is adapted to the inner surface of the boss, so as to realize the radial fixation of the snap ring 304 and the elastic member 303 through the contact between the plane 3032 and the surface of the boss.

[0062] Such as Figure 2 And Figure 4 As shown, on one end of the elastic member 303 close to the fixing bracket 10, there is a plane 3032. The plane 3032 includes a first plane and a second plane. The first plane and the second plane are oppositely distributed and are formed by cutting a preset area on opposite sides of one end of the elastic member 303, that is, the end close to the fixing bracket 10. It should be noted that the preset area can be determined according to specific situations and is not limited here.

[0063] The outer side of the elastic member 303 is for clamping with the snap ring 304, such as Figure 6As shown, on the opposite sides of the snap ring 304, there are upwardly protruding bosses 3041. The inner surface of the bosses 3041 is adapted to the plane 3032. The outer periphery of the elastic member 303 passes through the inner side surface of the snap ring. The groove 3031 on the outer periphery of the elastic member 303 abuts against the inner side surface of the ferrule. The inner surface of the upwardly protruding boss on the snap ring 304 is in contact with the corresponding plane 3032 to achieve the radial fixation of the snap ring 304 and the elastic member 303. The number of the bosses is equal to the number of the planes 3032, and the size and shape of the surface are adapted to the bosses.

[0064] As Figure 1-2 shown, the spring bushing 305 is sleeved on the connection 301 and is located on the side of the elastic member 303 close to the steering wheel skeleton 20. The spring 306 is sleeved outside the spring bushing 305. One end of the spring 306 abuts against the steering wheel skeleton 20, and the other end of the spring is used to support the elastic member 303.

[0065] That is to say, the sleeve 302 is sleeved on the connecting member 301, the elastic member 303 is sleeved on the sleeve 302 of the connecting member 301, the outer periphery of the elastic member 303 is installed inside the snap ring 304, the spring bushing 305 is sleeved on the connecting member 301, and the spring bushing 305 is located on the side of the elastic member 303 close to the steering wheel skeleton 20, that is, the spring bushing 305 is located below the sleeve 302, the elastic member 303 and the snap ring 304.

[0066] The connecting member 304 is provided with a first clamping groove 3011. One end of the spring bushing 305 close to the steering wheel skeleton 20 is clamped in the first clamping groove 3011. Specifically, the spring bushing 305 is sleeved on the connecting member 301. The spring bushing 305 is located below the elastic member 303, so that one end of the spring bushing 305 close to the fixed bracket 10 abuts against the lower end of the elastic member 303, and one end of the spring bushing 305 close to the steering wheel skeleton 20 is clamped in the first clamping groove 3011. Moreover, as Figure 2 and Figure 5As shown, at one end of the spring bushing 305 close to the steering wheel skeleton 20, there is a claw 3051 bent inward, and the claw 3051 is clamped in the first card slot 3011. The claw 3051 is bent inward, and the inward-bent claw 3051 is clamped in the first card slot 3011 on the connecting piece. The structure of the claw 3051 is adapted to the first card slot 3011, and the number of the claws 3051 is not limited and can be set according to actual needs. Of course, one end of the spring bushing 305 close to the steering wheel skeleton can also be a third convex block, and the third convex block can be clamped in the first card slot 3011 to connect the spring bushing 305 with the connecting piece.

[0067] One end of the spring bushing 305 close to the fixed bracket 20 is used to support the elastic member 303. Specifically, at one end of the spring bushing 305 close to the fixed bracket 20, there is a turned-up edge 3052 turned outward, and the turned-up edge 3052 abuts against the elastic member, so that the other end of the spring supports the elastic member 303 by abutting against the turned-up edge 3052.

[0068] It can be understood that at one end of the spring bushing 305 close to the fixed bracket 10, there is a turned-up edge 3052 turned outward, that is, the turned-up edge 3052 is indirectly abutted and fixed to the upper elastic member 303, and further, the other end of the spring 306 sleeved on the spring bushing 305 supports the elastic member 303 by abutting against the turned-up edge 3052.

[0069] As Figure 1-2 and Figure 5 shown, on the top surface of the turned-up edge 3052, there is a first convex block 3052-1, and the first convex block 3052-1 is clamped with a third card slot provided on the end surface of the end of the elastic member that abuts against the spring bushing 305. Specifically, on the top surface of the turned-up edge 3052, that is, on the surface close to and facing the fixed bracket 10, there is a first convex block 3052-1, and the first convex block 3052-1 protrudes in the direction of the fixed bracket. On the end surface of the elastic member 303 above the spring bushing 305 and abutting against the spring bushing 305, there is a third card slot, and the third card slot is clamped with the first convex block 3052-1 to realize the fixed connection between one end of the elastic bushing 305 close to the fixed bracket and the elastic member 303.

[0070] In the embodiment of the present application, one end of the spring bushing 305 close to the fixed bracket 10 supports the elastic member 303 above it, and the claw 3051 at one end of the spring bushing 305 close to the steering wheel skeleton 20 is clamped in the first card slot 3011 on the connecting member 301, so that the spring bushing 305 is connected to the connecting member 301.

[0071] One end of the spring 306 abuts against the steering wheel skeleton 20, and the other end is used to support the elastic member 303. The radial dimension of the spring 306 gradually increases from the first end of the spring to the second end of the spring. The first end of the spring is the end close to the fixed bracket 10, and the second end of the spring is the end close to the steering wheel skeleton 20.

[0072] As Figure 1-2 shown, the spring 306 is sleeved outside the spring bushing 305. One end of the spring 306 abuts against the steering wheel skeleton 20, and the other end of the spring bushing is used to support the elastic member 303. The structure of the spring 306 is that it extends from the first end of the spring 306 to the second end of the spring 306, and the radial dimension of the spring 306 gradually increases. That is to say, the diameter of the spring 306 gradually increases from the end close to the fixed bracket 10 or the end close to the elastic member 303 to the end of the spring close to the steering wheel skeleton 20. That is, the diameter of the first end of the spring 306 is smaller than the diameter of the second end of the spring 306, so that the spring 306 can be more firmly sleeved on the spring bushing 305.

[0073] A steering wheel damping device provided by the present application, as Figure 1 shown, the steering wheel damping device includes a fixed bracket 10 and a steering wheel skeleton 20. The fixed bracket is at least part of the structure of the airbag module. A damping assembly 30 is arranged between the fixed bracket 10 and the steering wheel skeleton 20. The fixed bracket 10 and the steering wheel skeleton 20 are connected through the damping assembly 30, and the damping assembly 30 can effectively relieve or reduce the vibration of the airbag module and the steering wheel. Among them, the damping assembly 30 includes a connecting member 301, a sleeve 302, an elastic member 303, a snap ring 304, a spring bushing 305 and a spring 306, which can make the airbag module and the steering wheel skeleton 20 form an integral body, similar to a larger damping module, so as to eliminate or absorb the vibration transmitted from the whole vehicle to the steering wheel, thereby reducing the vibration feeling, and can better improve the body feeling during driving. Moreover, the structure of the damping assembly 30 is relatively simple, and at the same time, the reliability can be improved, the assembly difficulty can be reduced, and the cost can be reduced.

[0074] The present application also provides a steering wheel, including the steering wheel damping device, where the steering wheel damping device includes: a fixed bracket 10 and a steering wheel skeleton 20. The fixed bracket 10 is at least part of the structure of the airbag module. A damping component 30 is provided between the fixed bracket 10 and the steering wheel skeleton 20. The damping component 30 includes a connecting member 301, a sleeve 302, an elastic member 303, a snap ring 304, a spring bushing 305, and a spring 306. The connecting member 301 passes through a first through hole on the fixed bracket 10 and a second through hole 201 on the steering wheel skeleton 20 to realize the connection between the fixed bracket 10 and the steering wheel skeleton 20. The sleeve 302 is sleeved on the connecting member 301. The elastic member 303 is in a ring structure and is sleeved on the sleeve 302 of the connecting member 301. A circumferential groove 3031 is provided on the outer periphery of the elastic member 303. The snap ring 304 is snap-fitted in the groove 3031 so that the outer periphery of the elastic member 303 is snap-fitted on the snap ring. The spring bushing 305 is sleeved on the connecting member 301 and is located on the side of the elastic member 303 close to the steering wheel skeleton 20. The spring 306 is sleeved outside the spring bushing 305. One end of the spring 306 abuts against the steering wheel skeleton 20, and the other end of the spring bushing is used to support the elastic member 303.

[0075] The specific implementation of the steering wheel damping device in this embodiment is analogous to that of the steering wheel damping device in the above embodiment. For specific details, refer to the relevant content of the above embodiment, and no redundant description will be given here.

[0076] It should be noted that although several structures, components, or units for implementing related functions are mentioned in the above detailed description, this division is not mandatory. In fact, according to the specific implementation of the present application, the features and functions of two or more of the above-described structures, components, or units can be embodied in one structure, component, or unit. Conversely, the features and functions of one structure, component, or unit described above can be further divided and embodied by multiple components, structures, or units.

[0077] In addition, although the components of the component or device in the present application and the installation manner between the components are described in a specific order in the drawings, this does not require or imply that the component or device must be designed according to this specific component or the installation manner between the components, or that all the shown components must be included to achieve the desired result. Additionally or alternatively, some components can be omitted, multiple components can be combined into one component to achieve the corresponding function, and / or one component can be decomposed into multiple components to achieve the corresponding function, etc.

[0078] Although the present application is disclosed above in preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the claims of the present application.

Claims

1. A steering wheel vibration reduction device, characterized in that: include: A fixing bracket and a steering wheel frame, wherein the fixing bracket is at least a partial structure of the airbag module, and a vibration reduction component is arranged between the fixing bracket and the steering wheel frame; The vibration reduction assembly comprises a connecting piece, a sleeve, an elastic piece, a snap ring, a spring bushing and a spring, wherein the connecting piece passes through a first through hole on the fixing bracket and a second through hole on the steering wheel frame to achieve connection between the fixing bracket and the steering wheel frame; The sleeve is sleeved on the connecting piece, the elastic piece is an annular structure and is sleeved on the sleeve of the connecting piece, a groove along a circumferential circle is provided on the outer periphery of the elastic piece, the retaining ring is sleeved in the groove so that the outer periphery of the elastic piece is sleeved on the retaining ring, the spring bushing is sleeved on the connecting piece and is located on the side of the elastic piece close to the steering wheel frame, the spring is sleeved outside the spring bushing, one end of the spring is in contact with the steering wheel frame, and the other end of the spring is used to support the elastic piece.

2. The steering wheel vibration reduction device according to claim 1, characterized in that: The connecting member is provided with a first slot, and one end of the spring bushing close to the steering wheel frame is clamped in the first slot.

3. The steering wheel vibration reduction device according to claim 2, characterized in that: One end of the spring bushing close to the steering wheel frame is provided with a clamping claw bent inwardly, and the clamping claw is clamped in the first clamping groove.

4. The steering wheel vibration reduction device according to claim 1, characterized in that: One end of the spring bushing close to the fixing bracket is provided with a folded edge folded outward, and the folded edge abuts against the elastic member, so that the other end of the spring supports the elastic member by abutting against the folded edge.

5. The steering wheel vibration reduction device according to claim 1, characterized in that: The radial size of the spring gradually increases from the first end of the spring to the second end of the spring. The first end of the spring is an end close to the fixing bracket, and the second end of the spring is an end close to the steering wheel frame.

6. The steering wheel vibration reduction device according to claim 1, characterized in that: A preset area is cut on two opposite sides of one end of the elastic member to form a plane, and upwardly extending bosses are arranged on two opposite sides of the clamping ring. The plane is matched with the inner surface of the boss to achieve radial fixation of the clamping ring and the elastic member through the contact between the plane and the surface.

7. The steering wheel vibration reduction device according to claim 1, characterized in that: Protrusions protruding outward are arranged on opposite sides of the outer circumference of the clamping ring, and a second groove is arranged on the protrusion. The second groove is used to fix the end of the fixing bracket so that the fixing bracket is fixed on the vibration reduction assembly.

8. The steering wheel vibration reduction device according to claim 4, characterized in that: A first protrusion is arranged on the top surface of the folded edge, and the first protrusion is engaged with a third engaging groove arranged on the end surface of one end of the elastic member abutting against the spring bushing.

9. The steering wheel vibration reduction device according to claim 1, characterized in that: A plurality of second protrusions are arranged in the groove at intervals along the circumferential direction, and each of the second protrusions abuts against different positions of the inner side surface of the clamping ring to limit the radial movement of the elastic member relative to the clamping ring.

10. A steering wheel, characterized in that: The invention comprises a steering wheel vibration reduction device as claimed in any one of claims 1 to 9.

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