CN213768694U - Car steering wheel shock attenuation unit and car steering wheel - Google Patents

Abstract

The utility model discloses an automobile steering wheel damping unit and an automobile steering wheel, wherein the automobile steering wheel damping unit comprises a counterweight component, a damping connecting piece, a reset spring, a spring base, a soft elastic sleeve, a lower bushing and a flat bottom cover; the counterweight assembly comprises a driver airbag and an airbag connecting part for accommodating the driver airbag; the spring base, the soft elastic sleeve and the lower bushing are all provided with middle holes, and the reset spring, the spring base and the soft elastic sleeve are all sleeved on the shock absorption connecting piece through the middle holes; the gasbag connecting portion are connected with the upper portion of shock attenuation connecting piece is spacing, and the gasbag connecting portion are connected with reset spring's top, and reset spring's bottom is connected with spring base, and spring base is connected with soft elastic sleeve, and the lower bushing suit is on soft elastic sleeve, and flat bottom is connected with the bottom of shock attenuation connecting piece. The utility model discloses have more excellent security when the gasbag expandes.

Description

Car steering wheel shock attenuation unit and car steering wheel

Technical Field

The utility model relates to the technical field of vehicles, concretely relates to car steering wheel shock attenuation unit and car steering wheel.

Background

The steering wheel of the automobile is an important part for controlling the driving direction of the automobile, and accurately transmits the intention of a driver to tires through a series of steering devices so as to control the driving direction of the automobile. At the same time, however, vibrations from the vehicle chassis and the engine are also transmitted to the steering wheel through the steering mechanism, causing the steering wheel to shake, which in turn affects the driving comfort of the driver and increases driving fatigue.

The existing connection between the steering wheel and the driver airbag is a rigid link, and has the defects that when the steering wheel shakes, no damping function is realized and abnormal sound is easily generated when the road surface bumps. Therefore, if the steering wheel has the shock absorption function, the shaking phenomenon of the steering wheel can be obviously reduced or eliminated, the driving comfort is improved, and the driving fatigue is reduced.

The technical schemes provided in the market at present are as follows: one is the gas generator damping scheme. Fig. 1 is a schematic view showing a structure of a steering wheel shock-absorbing unit of a vehicle using a gas generator in the prior art, and referring to fig. 1, the shock-absorbing unit is formed by adding a rubber elastic unit between a driver airbag gas generator 1 and an airbag housing 2, which has a disadvantage in that the generator serves as a weight member, but the total weight of the generator and a weight structure attached to the periphery thereof is generally not more than 400 g, the weight is light, and the shock-absorbing effect is limited.

The other is a steering wheel damping block scheme, namely a cast iron balancing weight and a rubber elastic unit are added on the steering wheel. The disadvantages of the solution are that the occupied space is large, the whole weight of the steering wheel is increased, the arrangement space of other parts is reduced, and the disadvantages are particularly prominent in the steering wheel with more function integration. This solution has been phased out in the market.

And the other damping scheme is that the driver airbag assembly is used as a balancing weight. Fig. 2 is a schematic structural view of a steering wheel damping unit of an automobile using a driver airbag assembly as a weight block in the prior art, please refer to fig. 2, in this scheme, the driver airbag assembly as a whole becomes the weight block in the damping unit, and the soft damping sleeve 3 is equivalent to a spring and a damper in the damping unit, and has the function of absorbing and dissipating vibration energy to achieve the purpose of damping the steering wheel. In this embodiment, the damper pin 4 is fixed to the steering wheel side by other members and can slide up and down along the hollow soft damper sleeve 3, the coupling rings 5 and 6, and the coupling body 7. The top end of the shock absorption nail 4 is connected with a clamp spring 8 on the air bag of the driver through a clamping hook, the shock absorption nail and the air bag of the driver are integrated after being assembled and keep relatively static, and when the air bag is pressed downwards, the shock absorption nail 4 and the air bag synchronously slide downwards. The disadvantage of this kind of structure is that jump ring 8 is the most crucial load-bearing part when the gasbag explodes to launch, should bear cyclic fatigue load and electrocorrosion load in the frequent operation of steering wheel loudspeaker, and long-term use may have uncertain safety risk, for example jump ring fracture when the gasbag launches, and then leads to the gasbag to separate from the steering wheel, causes the injury to the driver.

Therefore, there is a need to improve the steering wheel with a shock absorbing function provided in the prior art to make the shock absorbing effect thereof better.

Disclosure of Invention

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an automobile steering wheel damping unit in a first aspect, which comprises a counterweight component, a damping connecting piece, a reset spring, a spring base, a soft elastic sleeve, a lower bushing and a flat bottom cover; the weight assembly includes a driver airbag and an airbag connection portion for accommodating the driver airbag;

the spring base, the soft elastic sleeve and the lower bushing are provided with middle holes, and the return spring, the spring base and the soft elastic sleeve are sleeved on the shock absorption connecting piece through the middle holes;

the air bag connecting part is in limit connection with the upper part of the shock absorption connecting piece, the air bag connecting part is connected with the top of the reset spring, the bottom of the reset spring is connected with the spring base, the spring base is connected with the soft elastic sleeve, the lower bushing is sleeved on the soft elastic sleeve, and the flat bottom cover is connected with the bottom end of the shock absorption connecting piece.

Furthermore, a first clamping groove is formed in the soft elastic sleeve, and a first clamping hook is arranged on the spring base;

first draw-in groove is in the top of soft elastic sleeve sets up along the periphery, first pothook is in spring base's bottom sets up along the periphery, first draw-in groove with first pothook joint.

Furthermore, a second clamping groove is formed in the soft elastic sleeve, and a flange plate is arranged on the damping connecting piece;

the second clamping groove is arranged close to the top of the soft elastic sleeve and is arranged on the inner wall of the middle hole of the soft elastic sleeve; the ring flange sets up the middle part of shock attenuation connecting piece, the ring flange protrusion the outer wall of shock attenuation connecting piece, the ring flange with the second draw-in groove joint.

Furthermore, the air bag connecting part comprises a driver air bag shell and a clamp spring, and a third clamping groove is formed in the shock absorption connecting piece;

the clamp spring is arranged on the driver airbag shell, and a guide hole is formed in the driver airbag shell; the third clamping groove is formed in the top of the shock absorption connecting piece in the peripheral direction, the third clamping groove is matched with the clamp spring, and the third clamping groove is in clearance fit with the guide hole.

Further, the guide hole shell is in sleeved fit with the top of the return spring.

Furthermore, a second clamping hook and a flange surface are arranged on the spring base;

the second clamping hook is arranged at the top of the spring base and is connected with the bottom of the return spring;

the flange surface is arranged at the bottom of the spring base and is in contact fit with the top end surface of the soft elastic sleeve.

Furthermore, the upper part of the spring base is in clearance fit with the damping connecting piece, and the flange surface at the bottom of the spring base is in contact fit with the top end surface of the soft elastic sleeve.

Furthermore, a fourth clamping groove is formed in the soft elastic sleeve;

the fourth draw-in groove is close to the bottom of soft elastic sleeve sets up along the periphery, soft elastic sleeve passes through the fourth draw-in groove with the lower liner cover suit is connected.

Furthermore, a flange surface is arranged on the soft elastic sleeve;

the flange surface is arranged on the bottom end surface of the soft elastic sleeve and is in contact fit with the top end surface of the flat bottom cover.

The utility model discloses the second aspect provides a car steering wheel, include the first aspect car steering wheel shock attenuation unit and steering wheel skeleton, the figure of car steering wheel shock attenuation unit is a plurality of, car steering wheel shock attenuation unit with steering wheel skeleton fixed connection.

Implement the utility model discloses following beneficial effect has:

1. the utility model discloses well gasbag connecting portion are connected with the upper portion of shock attenuation connecting piece is spacing, and the shock attenuation connecting piece does not slide along with gasbag connecting portion in the operation that loudspeaker were pressed the sound, does not bear the fatigue load of pressing when loudspeaker were pressed, thereby makes the utility model provides a security of car steering wheel shock attenuation unit when the gasbag expandes is more excellent.

2. The utility model discloses the jump ring and the shock attenuation connecting piece top joint of well gasbag connecting portion do not bear current load, thereby make the utility model provides a car steering wheel shock attenuation unit security when the gasbag expandes is more excellent.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a steering wheel damping unit of a vehicle using a gas generator according to the prior art;

FIG. 2 is a schematic structural view of a steering wheel damping unit of an automobile using a driver airbag assembly as a weight block in the prior art;

fig. 3 is a schematic diagram of a damping unit according to an embodiment of the present invention;

fig. 4 is a schematic view of a steering wheel according to an embodiment of the present invention;

FIG. 5 is a sectional view taken along line A-A in FIG. 4;

FIG. 6 is an exploded view of the airbag connecting portion, the shock absorbing connector and the steering wheel frame according to the embodiment of the present invention before assembly;

fig. 7 is a schematic structural diagram of an assembled airbag connecting part, a shock-absorbing connecting part and a steering wheel skeleton according to an embodiment of the present invention;

fig. 8 is a partial sectional view of a steering wheel damping unit according to an embodiment of the present invention.

Wherein, 1-air bag gas generator, 2-air bag shell, 3-soft damping sleeve, 4-damping nail, 5 and 6-connecting ring, 7-connecting body, 8-circlip; 9-shock absorption connecting piece, 10-return spring, 11-spring base, 12-soft elastic sleeve, 13-lower bushing, 14-flat bottom cover, 15-driver air bag shell, 16-snap spring and 17-steering wheel skeleton.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected through the interior of two elements or in interactive relation with one another. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

The utility model provides a car steering wheel shock attenuation unit will combine the figure to carry out the detailed description to this embodiment below. For simplicity, only those group prices that are relevant to the subject matter described herein are shown in the figures. It will be appreciated that many other configurations may be included in the figures and that many other types of equipment may be used.

Fig. 3 is a schematic diagram of a damping unit provided in an embodiment of the present invention, specifically as shown in fig. 3, the steering wheel damping unit of the vehicle generally comprises a weight m, a spring K and a damping Rm. The larger the mass m of the balancing weight is, the smaller the amplitude generated under the vibration with the same energy is; the greater the damping Rm the faster the dissipation of the shock energy, and the greater the spring constant k of the spring, the greater the elastic potential energy stored for the same amount of deformation.

Fig. 4 is a schematic view of a steering wheel according to an embodiment of the present invention, and fig. 5 is a sectional view taken along a line a-a in fig. 4, specifically, as shown in fig. 4 and fig. 5, a shock-absorbing unit for a steering wheel of an automobile according to an embodiment of the present invention includes a weight assembly, a shock-absorbing connector 9, a return spring 10, a spring seat 11, a soft elastic sleeve 12, a lower bushing 13, and a flat bottom cover 14. The counterweight assembly comprises a driver airbag and an airbag connecting part for accommodating the driver airbag; the spring base 11, the soft elastic sleeve 12 and the lower bushing 13 are all provided with middle holes, and the return spring 10, the spring base 11 and the soft elastic sleeve 12 are all sleeved on the shock absorption connecting piece 9 through the middle holes. The air bag connecting part is in limit connection with the upper part of the shock absorption connecting part 9, the air bag connecting part is connected with the top of the reset spring 10, the bottom of the reset spring 10 is connected with the spring base 11, the spring base 11 is connected with the soft elastic sleeve 12, the lower bushing 13 is sleeved on the soft elastic sleeve 12, and the flat bottom cover 14 is connected with the bottom end of the shock absorption connecting part 9, so that the shock absorption connecting part 9, the soft elastic sleeve 12 and the lower bushing 13 are reliably fixed on the steering wheel framework 17.

The counterweight component has the function of a counterweight block in the damping principle diagram of the figure, the return spring 10 has the function of a spring in the damping principle diagram of the figure, and part of the soft elastic sleeve 12 has the function of a spring in the damping principle diagram of the figure, and the main function of the soft elastic sleeve is equivalent to damping in the principle diagram. The other parts are auxiliary parts which are used for linking and fixing. The damping connecting piece 9 can be made of metal or non-metal materials with hardness meeting the use requirement. It should be noted that the damping connector 9 according to the embodiment of the present invention is not used as an electrical conductor between the clamp spring 16 and other components (e.g., a horn).

The working principle of the damping unit is as follows: when automobile engine shakes, chassis vibrations pass through suspension and steering mechanism and transmit the steering wheel, the vibration takes place for the steering wheel stimulation, counter weight component is equivalent to the balancing weight this moment, also shake along with the steering wheel vibrations, the energy part of vibrations this moment converts the elastic potential energy of reset spring 10 and soft elastic sleeve 12 into, the part is through the compression deformation of soft elastic sleeve 12 and shake the friction and change into heat energy, finally most elastic potential energy also because the damping effect of soft elastic sleeve 12 changes the heat energy dissipation into, thereby show the dissipation vibrations energy, reduce the amplitude of shock wave, thereby reach the efficiency that reduces and eliminate the steering wheel shake.

Fig. 6 is the utility model discloses decomposition schematic before the assembly of gasbag connecting portion, shock attenuation connecting piece and steering wheel skeleton that embodiment provided, fig. 7 is the utility model discloses the structure schematic after the assembly of gasbag connecting portion, shock attenuation connecting piece and steering wheel skeleton that embodiment provided, please refer to fig. 6 and fig. 7, driver's gasbag casing 15 and the jump ring 16 of assembling on it as a whole, through shock attenuation connecting piece 9 and the assembly of steering wheel skeleton 17 joint. Preferably, the shock-absorbing attachment 9 may be a shock-absorbing spike. Preferably, the shock absorbing connector 9 is made of a metal material.

Fig. 8 is a partial sectional view of a steering wheel damping unit of an automobile provided in an embodiment of the present invention, please refer to fig. 8, the airbag connecting portion includes a driver airbag housing 15 and a clamp spring 16, wherein the driver airbag housing 15 and the clamp spring 16 are an assembled integral structure. The snap spring 16 is arranged on the driver airbag housing 15, and the driver airbag housing 15 is provided with a guide hole. And a third clamping groove is formed in the shock absorption connecting piece 9, is formed in the top of the shock absorption connecting piece 9 along the outer circumferential direction, is in clearance fit with the guide hole and is matched with the clamp spring 16.

When the counterweight assembly is pressed downwards, the counterweight assembly can slide downwards along the shock absorption connecting piece 9 through the guide hole on the counterweight assembly, and after the pressing force is removed, the counterweight assembly is reset through the reset spring 10. The third clamping groove at the top of the shock absorption connecting piece 9 is in contact fit with the clamp spring 16, so that the air bag of the driver has a limiting effect, the original position of the air bag is ensured, and the air bag is fixed on the steering wheel and cannot be separated from the steering wheel when the air bag is stimulated and unfolded.

Specifically, the top of the return spring 10 fits with the guide hole housing, the bottom of the return spring 10 is connected with a second hook, and the second hook is disposed on the top of the spring base 11. The function of the device is to support the driver airbag by means of pre-compression elastic force, so that the clamp spring 16 on the driver airbag keeps contact fit with the third clamp groove at the top of the shock absorption connecting piece 9, and the driver airbag can be reset after downward pressing force load applied to the driver airbag is cancelled.

The top of the spring base 11 is connected with the return spring 10 through a hook to fix the spring. The hole in the spring base 11 is in clearance fit with the damping connector 9, the flange face at the bottom of the spring base 11 is pressed on the top end face of the soft elastic sleeve 12, and meanwhile, the clamping hooks at the periphery of the bottom of the spring base 11 are clamped with the clamping grooves at the periphery of the top of the soft elastic sleeve 12 to fix the spring base 11. The spring base 11 is used for fixing the spring and is fixed on the shock absorption connecting piece 9 through being clamped with the soft elastic sleeve 12, so that downward load can be uniformly distributed on the soft elastic sleeve 12 when the air bag of a driver is pressed down, and the soft elastic sleeve 12 is protected.

The end face of the top of the soft elastic sleeve 12 is in contact fit with the flange face of the spring base 11, is sleeved with the damping connecting piece 9 through an inner hole, and is clamped with a flange plate protruding from the middle of the damping connecting piece 9 through a second clamping groove at the top of the inner hole.

The first locking slot at the periphery of the top of the soft elastic sleeve 12 is locked with the first locking hook at the periphery of the bottom of the spring base 11 to fix the spring base 11. The soft elastic sleeve 12 is sleeved with the lower bushing 13 through a fourth clamping groove on the periphery of the bottom and then fixed on the steering wheel framework 17. The soft elastic sleeve 12 has the main function that when the steering wheel vibrates, the driver airbag can be used as an integral balancing weight to convert the kinetic energy of the vibration into the elastic potential energy of the soft elastic sleeve 12 and overcome the heat energy generated by compression deformation and friction, so that the shock absorption effect is achieved, and the shaking phenomenon of the steering wheel is reduced or eliminated.

The soft elastic sleeve 12 is made of a soft and elastic material, such as silica gel, and a flange surface at the lower end of the soft elastic sleeve can be forced to pass through the lower bushing 13 through elastic deformation after the elastic deformation, so that the assembly in the drawing is realized.

The flat bottom cover 14 is connected with the shock absorption connecting piece 9 through threads or riveted joints (not shown), the upper end surface of the flat bottom cover 14 is contacted with the flange surface at the bottom of the soft elastic sleeve 12, and the flat bottom cover and the flange surface are pressed together with the plane at the lower end of the framework after being screwed or riveted. The flat bottom cover 14 is used for reliably fixing the shock absorption connecting piece 9, the soft elastic sleeve 12 and the lower lining 13 on the steering wheel framework 17 to form a part of the steering wheel, and the shock absorption connecting piece 9, the soft elastic sleeve 12 and the lower lining 13 are kept relatively static and immovable with the steering wheel framework 17, so that when the driver airbag is stimulated and unfolded, the shock absorption connecting piece 9 is fixed on the steering wheel framework 17 and does not fall off or separate, and further the airbag is prevented from separating.

It should be noted that, the embodiment of the present invention provides a steering wheel and driver airbag's mechanical connection structure is soft connection, and the conventional shock-absorbing-free steering wheel only needs to change fewer parts, for example, the soft elastic sleeve 12 is changed to the hard non-elastic sleeve, so that the shock-absorbing function can be switched to the shock-absorbing-free function, and vice versa. Because each part of the damping unit is smaller, the arrangement space of other parts cannot be compressed, and the standard and universalization degree is higher, the development cost is lower than that of the traditional scheme, and the technology is more flexible to implement.

Referring to fig. 4, the embodiment of the present invention further provides an automobile steering wheel, which includes three automobile steering wheel damping units and a steering wheel frame 17, wherein the three automobile steering wheel damping units are distributed on the steering wheel at intervals. The automobile steering wheel damping unit is fixedly connected with a steering wheel framework 17. Alternatively, the number of the steering wheel damping units of the vehicle may also be set to other values (not shown) according to needs, and the embodiments of the present invention are not limited thereto.

As can be seen from the above description of the embodiments of the steering wheel damping unit and the steering wheel, the air bag of the driver in the embodiment of the present invention is entirely used as the weight block of the damping unit, the mass can reach 900 and 1200 g, and the damping effect is more significant; when the steering wheel shakes, the flexible connecting structure of the steering wheel and the driver airbag can convert the swing kinetic energy of the driver airbag generated along with shaking into elastic deformation potential energy and damping heat energy of the flexible connecting structure, so that the shaking energy of the steering wheel is reduced, and the aim of damping is fulfilled. Simultaneously the utility model provides a damping connection 9 and soft elastic sleeve 12 make it not take place sliding motion in the operation that loudspeaker pressed the sound through unique structural design, do not bear the electric current and press fatigue load with driver's gasbag jump ring 16 of damping connection 9 top joint, and the security when consequently the gasbag expandes is more excellent.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications and changes may be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A shock absorption unit of an automobile steering wheel is characterized by comprising a counterweight component, a shock absorption connecting piece (9), a return spring (10), a spring base (11), a soft elastic sleeve (12), a lower bushing (13) and a flat bottom cover (14); the weight assembly includes a driver airbag and an airbag connection portion for accommodating the driver airbag;

the spring base (11), the soft elastic sleeve (12) and the lower bushing (13) are provided with middle holes, and the return spring (10), the spring base (11) and the soft elastic sleeve (12) are sleeved on the shock absorption connecting piece (9) through the middle holes;

the air bag connecting part is connected with the upper part of the shock absorption connecting part (9) in a limiting mode, the air bag connecting part is connected with the top of the reset spring (10), the bottom of the reset spring (10) is connected with the spring base (11), the spring base (11) is connected with the soft elastic sleeve (12), the lower bushing (13) is sleeved on the soft elastic sleeve (12), and the flat bottom cover (14) is connected with the bottom end of the shock absorption connecting part (9).

2. The automobile steering wheel shock absorption unit according to claim 1, wherein the soft elastic sleeve (12) is provided with a first clamping groove, and the spring base (11) is provided with a first clamping hook;

the first clamping groove is formed in the outer circumferential direction of the top of the soft elastic sleeve (12), the first clamping hook is arranged at the bottom of the spring base (11) in the outer circumferential direction, and the first clamping groove is connected with the first clamping hook in a clamped mode.

3. The automobile steering wheel shock absorption unit according to claim 1, wherein a second clamping groove is formed on the soft elastic sleeve (12), and a flange plate is arranged on the shock absorption connecting piece (9);

the second clamping groove is arranged close to the top of the soft elastic sleeve (12), and is arranged on the inner wall of the middle hole of the soft elastic sleeve (12); the ring flange sets up the middle part of shock attenuation connecting piece (9), the ring flange protrusion the outer wall of shock attenuation connecting piece (9), the ring flange with the second draw-in groove joint.

4. The automobile steering wheel shock absorption unit according to claim 1, wherein the airbag connecting part comprises a driver airbag housing (15) and a clamp spring (16), and a third clamping groove is formed on the shock absorption connecting part (9);

the clamp spring (16) is arranged on the driver airbag shell (15), and a guide hole is formed in the driver airbag shell (15); the third clamping groove is formed in the top of the shock absorption connecting piece (9) along the outer circumferential direction, the third clamping groove is matched with the clamp spring (16), and the third clamping groove is in clearance fit with the guide hole.

5. The automobile steering wheel shock absorbing unit according to claim 4, wherein the pilot hole housing is fitted over a top portion of the return spring (10).

6. The steering wheel shock absorbing unit of claim 1, wherein the spring mount (11) is provided with a second hook and a flange face;

the second clamping hook is arranged at the top of the spring base (11) and is connected with the bottom of the return spring (10);

the flange surface is arranged at the bottom of the spring base (11) and is in contact fit with the top end surface of the soft elastic sleeve (12).

7. The automobile steering wheel shock-absorbing unit according to claim 1, wherein the upper portion of the spring seat (11) is in clearance fit with the shock-absorbing connector (9), and the flange surface of the bottom of the spring seat (11) is in contact fit with the top end surface of the soft elastic sleeve (12).

8. The automobile steering wheel shock-absorbing unit according to claim 1, wherein a fourth locking groove is formed on the soft elastic sleeve (12);

the fourth clamping groove is close to the bottom of the soft elastic sleeve (12) and arranged along the outer periphery, and the soft elastic sleeve (12) is connected with the lower bushing (13) in a sleeved mode through the fourth clamping groove.

9. The automobile steering wheel shock absorbing unit according to claim 1, wherein the soft elastic sleeve (12) is provided with a flange surface;

the flange surface is arranged on the bottom end surface of the soft elastic sleeve (12) and is in contact fit with the top end surface of the flat bottom cover (14).

10. An automotive steering wheel, characterized by comprising the automotive steering wheel shock absorption unit and the steering wheel frame (17) according to any one of claims 1 to 9, wherein the number of the automotive steering wheel shock absorption units is multiple, and the automotive steering wheel shock absorption unit is fixedly connected with the steering wheel frame (17).

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