Steering column assembly and vehicle

Abstract

The utility model discloses a steering column assembly and a vehicle, and the steering column assembly comprises a steering column, a steering column, a driving device and a driving device, the steering shaft is arranged in the steering pipe column; the guide mechanism is fixedly connected to one axial end of the steering column, and the guide mechanism is provided with a guide groove; the fixed follow-up mechanism is fixedly connected to one axial end of the steering shaft, the fixed follow-up mechanism is provided with a sliding groove and a limiting piece, the limiting piece is arranged in the sliding groove in a sliding mode, the limiting piece is arranged in the guide groove in a matched mode, and when the limiting piece is in contact with the end of the guide groove, the limiting piece is in contact with the end of the guide groove. The steering shaft and the guide mechanism are in limiting fit in the circumferential direction of the steering shaft. Therefore, by arranging the steering column assembly, the number of turns of rotation of the steering shaft can be limited, so that the angle sensor and the clock spring are protected, and the steering column assembly is simple and reliable in structure, low in cost and small in size.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a steering column assembly and a vehicle. Background Art

[0002] The steering system is one of the important systems of an automobile chassis. The function of the steering system is to convert the torque applied by the driver on the steering wheel into the movement of the wheels through components such as the steering column and the intermediate shaft, so as to achieve the purpose of vehicle steering. As an important component of the steering system and an element connecting the steering wheel and the steering gear, the main function of the steering column is to transmit the steering wheel torque to the steering gear through the intermediate transmission shaft. With the development of steering technology, the steering system has developed in the direction of mechanical steering, hydraulic steering, electro-hydraulic, electric power steering, and steer-by-wire.

[0003] In the related art, compared with other types of steering, steer-by-wire cancels the mechanical connection in the traditional steering system, and only transmits electrical signals between the steering column and the steer-by-wire steering gear to achieve information interaction between the upper and lower structures. Therefore, the hard limit of the rack stroke of the steer-by-wire steering system cannot meet the purpose of mechanically hard-limiting the number of turns of the steering wheel. There are many physical buttons on the steering wheel in the whole vehicle. Currently, a clock spring needs to be added between the steering column and the steering wheel to solve the power supply and communication requirements. However, the clock spring has a limit on the number of turns. After exceeding the number of turns, the clock spring will be damaged, resulting in the failure of the steering wheel buttons. Moreover, the angle sensor also has requirements for the angle range limit. Therefore, the steering column cannot rotate arbitrarily. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a steering column assembly which can limit the number of turns of the steering shaft, so as to achieve the protection effect on the angle sensor and the clock spring.

[0005] The utility model further provides a vehicle.

[0006] The steering column assembly according to the first aspect of the utility model includes: a steering column; a steering shaft disposed within the steering column; a guiding mechanism fixedly connected to an axial end of the steering column, the guiding mechanism being provided with a guiding groove; a fixed follower mechanism fixedly connected to an axial end of the steering shaft, the fixed follower mechanism being provided with a sliding groove and a limiting member, the limiting member being slidably disposed within the sliding groove, the limiting member being engaged within the guiding groove, and when the limiting member contacts an end of the guiding groove, the steering shaft and the guiding mechanism are in circumferential limiting cooperation.

[0007] In the above technical solution, when the steering wheel rotates (it can rotate forward or backward), the steering wheel will control the rotation of the steering shaft, and the steering shaft will drive the fixed follower mechanism to rotate synchronously. The fixed follower mechanism rotates relative to the guiding groove on the guiding mechanism. Since the guiding mechanism is circumferentially fixed, the fixed follower mechanism can convert the rotational motion of the limiting member relative to the guiding groove into a linear motion along the direction of the sliding groove. And when the limiting member moves to the end of the guiding groove, at this time, a circumferential limiting cooperation relationship is established between the limiting member and the guiding groove, that is, the guiding groove restricts the fixed follower mechanism from continuing to rotate circumferentially along the guiding groove of the guiding mechanism with the limiting member, thereby restricting the continuous rotation of the steering shaft in the original rotation direction. In summary, the two ends of the guiding groove jointly define the limit position where the fixed follower mechanism can perform circumferential rotational motion relative to the guiding mechanism. Thus, the final set number of limited turns of the steering wheel can be determined through the rotation angle of the steering shaft, and further the protection effect on the angle sensor and the clock spring can be achieved (for example, in a steer-by-wire system, compared with other steering systems, its layout form without an intermediate shaft enables only electrical signal transmission between the steering shaft and the steer-by-wire steering gear to achieve up and down information interaction. There are many physical buttons on the steering wheel in the whole vehicle, and a clock spring is arranged between the steering wheel and the column to solve the power supply and communication requirements. However, the clock spring has a limit on the number of turns. After exceeding the number of turns, the clock spring will be damaged, resulting in the failure of the steering wheel buttons. Moreover, the angle sensor also has a limit requirement on the angle range. Therefore, the steering shaft cannot rotate arbitrarily. The embodiments in this case can effectively solve the problem of the number of turns limit of the steering shaft and achieve the protection effect on the angle sensor and the clock spring). In addition, the steering column assembly has a simple and reliable structure, low cost, and small volume, effectively improving its practicability.

[0008] Thus, by setting the steering column assembly, it can limit the number of turns of the steering shaft, thereby achieving the protection effect on the angle sensor and the clock spring, and it has a simple and reliable structure, low cost, and small volume.

[0009] In some examples of the present utility model, the guiding groove is spiral inside the guiding mechanism, and the sliding groove extends along the radial direction of the steering shaft.

[0010] In some examples of the present utility model, there are multiple limiting members, and the multiple limiting members are arranged at intervals.

[0011] In some examples of the present utility model, the fixed follower mechanism is provided with a limiting portion, the limiting portion is connected to the sliding groove, and the limiting portion is in limiting cooperation with the limiting member to prevent the limiting member from falling out of the sliding groove.

[0012] In some examples of the present utility model, the limiting member is configured as a pin column, and the limiting member protrudes from one side of the guiding mechanism towards the guiding groove along the axial direction of the steering shaft.

[0013] In some examples of the present utility model, the fixed follower mechanism further includes: a base fixedly connected to an axial end of the steering shaft; a cage spaced circumferentially from the base, and at least one of the cages is provided with the chute along its length direction.

[0014] In some examples of the present utility model, a guiding groove is provided on the inner circumference of the guiding mechanism, and a protrusion is provided at one end of each of the plurality of cages away from the base, and the protrusion is in guiding cooperation with the guiding groove; or a guiding groove is provided on the inner circumference of the guiding mechanism, the cage includes a fixing member and an elastic member, an installation seat is provided at one end of the cage away from the base, the elastic member is located in the installation seat and abuts against the fixing member, and a part of the fixing member penetrates through the installation seat and is in guiding cooperation with the guiding groove.

[0015] In some examples of the present utility model, the fixed follower mechanism further includes: a fixed platform connected to an axial end of the steering shaft, the base is located at the center of the fixed platform, and the base and the cage are connected to a side of the fixed platform facing the guiding groove.

[0016] In some examples of the present utility model, the steering column assembly further includes: an elastic buffer member respectively provided at two ends of the guiding groove to be in contact and cooperation with the limiting member at the end of the guiding groove.

[0017] The vehicle according to the second aspect of the present utility model includes: the above-mentioned steering column assembly.

[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0020] Figure 1 is a schematic structural diagram of a steering column assembly according to an embodiment of the present utility model;

[0021] Figure 2 is an exploded view of a partial structure of a steering column assembly according to an embodiment of the present utility model;

[0022] Figure 3 is a front view of the guiding mechanism and the fixed follower mechanism in cooperation according to an embodiment of the present utility model;

[0023] Figure 4It is a schematic structural diagram of a fixed follow-up mechanism according to an embodiment of the present invention;

[0024] Figure 5 It is a schematic structural diagram of a guiding structure according to an embodiment of the present invention;

[0025] Figure 6 It is another schematic structural diagram of the guiding structure according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] 100, steering column assembly;

[0028] 1, steering column; 2, steering shaft; 3, guiding mechanism; 31, guiding groove; 32, guiding slot;

[0029] 4, fixed follow-up mechanism; 41, sliding groove; 42, limiting member; 43, base; 44, cage;

[0030] 441, protrusion; 442, mounting seat; 45, fixed platform. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the drawings are exemplary.

[0032] Next, refer to Figures 1-6 to describe the steering column assembly 100 according to an embodiment of the present invention, which can limit the number of rotation turns of the steering shaft 2, thereby achieving the protection effect on the angle sensor and the clock spring.

[0033] Combined with Figures 1-6 As shown, the steering column assembly 100 according to the first aspect embodiment of the present invention includes a steering column 1, a steering shaft 2, a guiding mechanism 3, and a fixed follow-up mechanism 4. Among them, the steering shaft 2 is fixedly connected to the steering wheel, and when the steering wheel rotates, it will drive the steering shaft 2 to rotate synchronously.

[0034] Specifically, the steering shaft 2 is disposed inside the steering column 1. The guiding mechanism 3 is fixedly connected to one axial end of the steering column 1. The guiding mechanism 3 is provided with a guiding groove 31. The fixed follow-up mechanism 4 is fixedly connected to one axial end of the steering shaft 2. The fixed follow-up mechanism 4 is provided with a sliding groove 41 and a limiting member 42. The limiting member 42 is slidably disposed in the sliding groove 41. The limiting member 42 is engaged in the guiding groove 31. When the limiting member 42 contacts the end of the guiding groove 31, the steering shaft 2 and the guiding mechanism 3 are limited and engaged in the circumferential direction of the steering shaft 2.

[0035] Specifically, when the steering wheel is rotated, the steering wheel drives the steering shaft 2 to rotate synchronously, and the steering shaft 2 also drives the fixed follower mechanism 4 fixedly connected to the steering shaft 2 to rotate synchronously. The guiding mechanism 3 is fixedly connected to the steering column 1 (that is, the guiding mechanism 3 is circumferentially fixed). Since the limiting member 42 on the fixed follower mechanism 4 is slidably disposed in its own chute 41, and the limiting member 42 is in guiding cooperation with the guiding groove 31 on the guiding mechanism 3, the limiting member 42 linearly slides along the direction of the chute 41 of the chute 41 while relatively rotating with the guiding groove 31 as the steering shaft 2 rotates.

[0036] Furthermore, a guiding groove 31 for guiding the movement direction of the limiting member 42 is circumferentially provided on the inner circumference of the guiding mechanism 3, so that the limiting member 42 can move along a specified movement path, thereby ensuring the movement stability and accuracy of the limiting member 42.

[0037] For example, when the steering wheel rotates (it can be a forward rotation or a reverse rotation), the steering wheel drives the steering shaft 2 to rotate, and the steering shaft 2 drives the fixed follower mechanism 4 to rotate synchronously. The fixed follower mechanism 4 rotates relative to the guiding groove 31 on the guiding mechanism 3. Since the guiding mechanism 3 is circumferentially fixed, the fixed follower mechanism 4 can convert the rotational motion of the limiting member 42 relative to the guiding groove 31 into a linear motion along the direction of the chute 41. And when the limiting member 42 moves to the end of the guiding groove 31, at this time, a circumferential limiting cooperation relationship is established between the limiting member 42 and the guiding groove 31, that is, the guiding groove 31 restricts the fixed follower mechanism 4 from continuing to rotate circumferentially along the guiding groove 31 of the guiding mechanism 3 with the limiting member 42, thereby restricting the steering shaft 2 from continuing to rotate in the original rotation direction.

[0038] In summary, the two ends of the guiding groove 31 jointly define the limit positions where the fixed follower mechanism 4 can perform circumferential rotational motion relative to the guiding mechanism 3. Thus, the final set number of limited turns of the steering wheel can be determined by the rotation angle of the steering shaft 2, and further the protection effect on the angle sensor and the clock spring can be achieved (for example, in a steer-by-wire system, compared with other steering systems, its layout form without an intermediate shaft enables only electrical signal transmission between the steering shaft and the steer-by-wire steering gear to achieve up and down information interaction. There are many physical buttons on the steering wheel in the whole vehicle, and a clock spring is arranged between the steering wheel and the column to solve the power supply and communication requirements. However, the clock spring has a limit on the number of turns. After exceeding the number of turns, the clock spring will be damaged, resulting in the failure of the steering wheel buttons. Moreover, the angle sensor also has a limit requirement on the angle range. Therefore, the steering shaft cannot rotate arbitrarily. The embodiment in this case can effectively solve the problem of the number of turns limit of the steering shaft 2 and achieve the protection effect on the angle sensor and the clock spring). In addition, the steering column assembly 100 has a simple and reliable structure, low cost and small volume, effectively improving its practicability.

[0039] Thus, by providing the steering column assembly 100, the number of rotation turns of the steering shaft 2 can be limited, thereby achieving the protection effect on the angle sensor and the clock spring. Moreover, its structure is simple and reliable, with low cost and small size.

[0040] According to some alternative embodiments of the present invention, in combination with Figure 3 and Figure 5 As shown, the guiding groove 31 is spiral inside the guiding mechanism 3. Specifically, the guiding groove 31 extends spirally along the circumferential direction inside the guiding mechanism 3. In this way, it is convenient for the limiting member 42 to perform a linear motion along the extending direction of the sliding groove 41 during the relative rotational motion with the guiding groove 31. On the one hand, this allows the steering shaft 2 to rotate multiple turns. On the other hand, it is convenient to accurately limit the number of rotation turns of the steering shaft 2 by setting the effective path length of the guiding groove 31, thereby ensuring the limiting effect of the steering column assembly 100 on the number of rotation turns of the steering wheel.

[0041] Furthermore, in combination with Figure 3 and Figure 4 As shown, the sliding groove 41 extends along the radial direction of the steering shaft 2. Such an arrangement can effectively increase the sliding path length of the sliding groove 41 within a limited space, thereby ensuring the required number of rotation turns of the steering shaft 2. It can also enable the limiting member 42 to perform a radial movement within the plane where the central axis of the steering shaft 2 is located, thereby improving the sliding smoothness of the limiting member 42.

[0042] According to some alternative embodiments of the present invention, in combination with Figure 3 and Figure 4 As shown, there are multiple limiting members 42, and the multiple limiting members 42 are arranged at intervals.

[0043] Specifically, multiple limiting members 42 are arranged at intervals in the sliding groove 41 of the fixed follower mechanism 4, and the multiple limiting members 42 are respectively engaged with different positions in the guiding groove 31. In this way, it can be ensured that the multiple limiting members 42 can all perform relative sliding along the guiding path of the guiding groove 31 simultaneously, thereby improving the smoothness of the relative rotation of the limiting member 42 with respect to the guiding groove 31. Moreover, since the multiple limiting members 42 are engaged with the guiding groove 31, the force load during the movement of the limiting member 42 in the guiding groove 31 can be dispersed, avoiding local stress concentration, and thus improving the movement smoothness of the limiting member 42.

[0044] According to some alternative embodiments of the present invention, in combination with Figure 3 and Figure 4As shown, the fixed follower mechanism 4 is provided with a limiting part. The limiting part is connected to the sliding groove 41, and the limiting part is in limiting cooperation with the limiting member 42 to prevent the limiting member 42 from falling out of the sliding groove 41. That is to say, as arranged above, the limiting part connected to the sliding groove 41 can form a limiting effect on the limiting member 42, thereby avoiding the risk of the limiting member 42 falling out of the sliding groove 41, and further ensuring the effect of limiting the number of rotation turns of the steering shaft 22.

[0045] According to some alternative embodiments of the present invention, in combination with Figure 3 and Figure 4 As shown, the limiting member 42 is configured as a pin. The limiting member 42 protrudes axially along the steering shaft 2 from one side of the guiding mechanism 3 towards the guiding groove 31.

[0046] Among them, the pin can better withstand variable loads and impacts. One end of the limiting member 42 is located in the sliding groove 41, and the other end thereof protrudes towards the guiding groove 31. In this way, it is convenient for the limiting member 42 to extend into the guiding groove 31. Thus, on the basis that circumferential limiting cooperation can occur at the end of the limiting member 42 in contact with the guiding groove 31, it can also ensure the smooth sliding effect of the limiting member 42 relative to the guiding groove 31 with a set certain stroke, and further improve the rationality of its layout.

[0047] According to some alternative embodiments of the present invention, in combination with Figures 1-4 As shown, the fixed follower mechanism 4 further includes a base 43 and a cage 44. The base 43 is fixedly connected to one axial end of the steering shaft 2, and the cage 44 is arranged at intervals in the circumferential direction of the base 43. At least one cage 44 is provided with a sliding groove 41 along its length direction.

[0048] Among them, the base 43 can establish a fixed connection relationship with the steering shaft 2. A plurality of cages 44 are arranged at intervals in the circumferential direction on the outer periphery of the base 43. At least one cage 44 is provided with a sliding groove 41 along its length direction. In this way, when the steering shaft 2 rotates, the base 43 can drive a plurality of cages 44 to rotate synchronously with the steering shaft 2, thereby ensuring that the fixed follower mechanism 4 can cooperate with the guiding mechanism 3 to achieve the effect of limiting the number of turns of the steering shaft 2, and further playing a protective effect on the angle sensor and the clock spring.

[0049] Optionally, in combination with Figure 4 and Figure 6 As shown, a guiding groove 32 is provided on the inner circumference of the guiding mechanism 3. A protrusion 441 is provided at one end of each of the plurality of cages 44 away from the base 43, and the protrusion 441 is in guiding cooperation with the guiding groove 32.

[0050] Among them, the guiding groove 32 on the inner circumference of the guiding mechanism 3 can form a guiding and cooperating relationship with the protrusion 441 at one end of the cage 44 away from the base 43. In this way, the guiding mechanism 3 can form a guiding path for guiding and fixing the follower mechanism 4 to rotate relative to it, thereby improving the movement stability when the follower mechanism 4 rotates relative to the guiding mechanism 3. It can also facilitate connecting the follower mechanism 4 and the guiding mechanism 3 into a relatively stable whole, thereby improving the position stability of each other.

[0051] Alternatively, a guiding groove 32 is provided on the inner circumference of the guiding mechanism 3. The cage 44 includes a fixing member and an elastic member. The cage 44 is provided with a mounting seat 442 at one end away from the base 43. The elastic member is located in the mounting seat 442, and the elastic member abuts against the fixing member. Part of the fixing member passes through the mounting seat 442 and is in guiding cooperation with the guiding groove 32.

[0052] Among them, the elastic member can undergo elastic deformation to form an elastic restoring force. The mounting seat 442 provided at one end of the cage 44 away from the base 43 can provide a mounting and fixing position for the elastic member. One end of the elastic member abuts against the mounting seat 442, and the other end abuts against the fixing member. After the fixing member is subjected to pressure, the elastic member is compressed. In this way, the elastic deformation characteristic of the above elastic member can be utilized to facilitate the work of smoothly assembling the fixing member into the guiding groove 32, thereby improving the assembly convenience.

[0053] Specifically, as shown in Figure 3 and Figure 4 , the follower mechanism 4 further includes a fixed platform 45. The fixed platform 45 is connected to one axial end of the steering shaft 2. The base 43 is located at the center of the fixed platform 45. The base 43 and the cage 44 are connected to one side of the fixed platform 45 facing the guiding groove 31.

[0054] It can be understood that the fixed platform 45 can increase the weight and spatial mode of the base 43 and the cage 44, thereby improving the overall structural strength and flexural and torsional stiffness, and further improving the overall structural stability of the follower mechanism 4. For example, the fixed platform 45 can be cylindrical.

[0055] In addition, along the axial direction of the steering shaft 2, one axial side of the fixed platform 45 is connected to the steering shaft 2. In this way, the connection contact area between the follower mechanism 4 and the steering shaft 2 can be increased, thereby improving the connection strength between the two. The base 43 is connected to the center position on the other axial side of the fixed platform 45. In this way, the concentricity between the base 43 and the fixed platform 45 can be improved, thereby ensuring the smoothness of the overall rotational movement of the guiding mechanism 3.

[0056] According to some alternative embodiments of the present utility model, the steering column assembly 100 further includes an elastic buffer member, which is respectively disposed at both ends of the guiding groove 31 to be in contact and cooperation with the limiting member 42 at the end of the guiding groove 31.

[0057] Further, the elastic buffer member is made of an elastic material, which can undergo elastic deformation, thereby effectively absorbing and dispersing impact energy, reducing vibration and noise. Wherein, elastic buffer members are respectively disposed at both ends of the guiding groove 31 along its own guiding path, so that the impact energy when the limiting member 42 makes a limiting contact with the end of the guiding groove 31 can be effectively absorbed and dispersed, thus achieving the effects of buffering, vibration reduction and noise reduction.

[0058] In addition, by synchronizing the hard limit (i.e., the limiting member 42, the guiding groove 31, etc.) and the soft limit (i.e., the elastic buffer member) through the feel motor, the requirement for the torque at the end of the steering wheel can be reduced, so that the power of the feel motor can be reduced by more than 75%, and the size, volume and cost of the motor can be effectively reduced.

[0059] A vehicle according to an embodiment of the second aspect of the present utility model includes the steering column assembly 100 of the above embodiment. Thus, the vehicle (adopting a steer-by-wire system) having the steering column assembly 100 can mechanically limit the number of turns of the steering wheel, thereby achieving the effect of protecting the angle sensor and the clock spring, and further improving the driving safety of the vehicle.

[0060] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 to the present utility model.

[0061] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" 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, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0062] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0063] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

[0064] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A steering column assembly, characterized in that: include: Steering column; A steering shaft, wherein the steering shaft is disposed in the steering column; A guide mechanism, the guide mechanism is fixedly connected to one axial end of the steering column, and the guide mechanism is provided with a guide groove; A fixed follower mechanism, which is fixedly connected to one axial end of the steering shaft, is provided with a slide groove and a limit piece, the limit piece is slidably arranged in the slide groove, and the limit piece is matched in the guide groove. When the limit piece contacts the end of the guide groove, the steering shaft and the guide mechanism are matched in the circumferential upper limit of the steering shaft.

2. The steering column assembly according to claim 1, characterized in that: The guide groove is spirally shaped inside the guide mechanism, and the slide groove extends along the radial direction of the steering shaft.

3. The steering column assembly according to claim 1, characterized in that: There are multiple limiting members, and the multiple limiting members are arranged at intervals.

4. The steering column assembly according to claim 1, characterized in that: The fixed follower mechanism is provided with a limiting portion, the limiting portion is connected to the slide slot, and the limiting portion is limitedly matched with the limiting member to prevent the limiting member from falling out of the slide slot.

5. The steering column assembly according to claim 1, characterized in that: The limiting member is configured as a pin, and the limiting member is arranged to protrude from one side of the guide mechanism toward the guide groove along the axial direction of the steering shaft.

6. The steering column assembly according to claim 1, characterized in that: The fixed follower mechanism also includes: A base, the base being fixedly connected to one axial end of the steering shaft; The retaining frames are arranged at intervals in the circumferential direction of the base, and at least one of the retaining frames is provided with the sliding groove along its length direction.

7. The steering column assembly according to claim 6, characterized in that: The inner periphery of the guide mechanism is provided with a guide groove, and the plurality of retaining frames are provided with a protrusion at one end away from the base, and the protrusion is guided and matched with the guide groove; or A guide groove is arranged on the inner periphery of the guide mechanism, the retaining frame includes a fixing member and an elastic member, a mounting seat is arranged on the end of the retaining frame away from the base, the elastic member is located in the mounting seat and abuts against the fixing member, and part of the fixing member passes through the mounting seat and cooperates with the guide groove.

8. The steering column assembly according to claim 6, characterized in that: The fixed follower mechanism also includes: A fixing platform is connected to one axial end of the steering shaft, the base is located at the center of the fixing platform, and the base and the retaining frame are connected to one side of the fixing platform facing the guide groove.

9. The steering column assembly according to claim 1, characterized in that: Also includes: Elastic buffer components are respectively arranged at both ends of the guide groove to contact and cooperate with the limiting component at the end of the guide groove.

10. A vehicle, characterized in that: include: The steering column assembly according to any one of claims 1 to 9.

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