Steering column assembly and vehicle

Abstract

The utility model discloses a steering column assembly and a vehicle. The steering column assembly comprises a steering shaft, and the steering shaft is provided with a plurality of protruding strips protruding outwards in the radial direction of the steering shaft and extending in the axial direction of the steering shaft; the guide sleeve is arranged on the steering shaft in a sleeving mode, the guide sleeve is provided with a plurality of grooves which are sunken outwards in the radial direction of the guide sleeve and extend in the axial direction of the guide sleeve, the grooves are sequentially connected in the circumferential direction of the guide sleeve, the protruding strips are matched with the grooves in a one-to-one correspondence mode, and the guide sleeve is provided with a limiting part; the steering column is arranged on the steering shaft and the guide sleeve in a sleeving mode, a guide groove is formed in the steering column, the limiting part is arranged in the guide groove, and when the limiting part makes contact with the end of the guide groove, the steering column and the guide sleeve are in upper 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 exerted 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 drive 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. Only electrical signals are transmitted 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 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 rotation 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 present utility model includes: a steering shaft, wherein a plurality of ribs protruding radially outward and extending axially along the steering shaft are provided on the steering shaft, and the plurality of ribs are sequentially connected along the circumferential direction of the steering shaft, and the cross section of the rib is arched; a guide sleeve sleeved on the steering shaft, wherein a plurality of grooves recessed radially outward and extending axially along the guide sleeve are provided on the guide sleeve, and the plurality of grooves are sequentially connected along the circumferential direction of the guide sleeve, and the plurality of ribs are in one-to-one correspondence and cooperation with the plurality of grooves, and the guide sleeve is provided with a limiting portion; a steering column sleeved on the steering shaft and the guide sleeve, wherein the steering column is provided with a guide groove, and the limiting portion is fitted in the guide groove, and when the limiting portion contacts the end of the guide groove, the steering column and the guide sleeve are in circumferential limiting cooperation on the circumference of the steering shaft.

[0007] In the above technical solution, the guide sleeve is sleeved on the steering shaft, and the steering column is sleeved on the guide sleeve and fixed. When the guide sleeve rotates with the rotation of the steering shaft, the limiting portion on the guide sleeve moves relative to the guide groove on the steering column until the limiting portion contacts the end of the guide groove (during the rotation of the limiting portion on the guide sleeve relative to the guide groove of the steering column, the limiting portion will be subjected to an axial force from the guide groove, causing the guide sleeve to generate an axial displacement). At this time, a circumferential limiting cooperation relationship is generated between the guide groove and the limiting portion, that is, the end of the guide sleeve prevents the limiting portion from continuing to rotate, so that the number of continuous rotations of the steering shaft in a certain direction (such as clockwise or counterclockwise) can be effectively limited, thereby achieving the effect of limiting the number of continuous rotations of the steering wheel in a certain direction (such as clockwise or counterclockwise), and further improving the protection effect on the angle sensor and the clock spring (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. Therefore, the hard limit of the rack stroke of the steering gear in the traditional steering system cannot meet the purpose of mechanically hard limiting the number of steering wheel turns. 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 on the angle range. Therefore, the steering shaft cannot rotate arbitrarily. The embodiment in this case can effectively achieve the effect of limiting the number of rotations of the steering wheel, thereby achieving the protection effect on the angle sensor and the clock spring). In addition, the rotation limiting mechanism has a simple and reliable structure, low cost and small volume, effectively improving its practicability.

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

[0009] In some examples of the present utility model, the guiding groove is spiral on the outer periphery of the steering column.

[0010] In some examples of the present utility model, there are multiple limiting portions, and the shape formed by the multiple limiting portions arranged at intervals on the guiding sleeve and connected in sequence is spiral.

[0011] In some examples of the present utility model, the multiple limiting portions correspond to the multiple grooves one by one, and a limiting portion is provided at the lowest point of each groove.

[0012] In some examples of the present utility model, the guiding groove penetrates the outer peripheral wall of the steering column along the radial direction of the steering column.

[0013] In some examples of the present utility model, the steering column assembly further includes: a buffer sleeve, the guiding sleeve is sleeved on the buffer sleeve, and the cross-sectional shape of the buffer sleeve is the same as the cross-sectional shape of the guiding sleeve, so that the buffer sleeve contacts the steering shaft.

[0014] In some examples of the present utility model, the limiting portion is configured as a pin column, and the limiting portion protrudes from the outer peripheral surface of the guiding sleeve towards the guiding groove.

[0015] In some examples of the present utility model, the steering column assembly further includes: a limiting member, the limiting member is arranged on the steering shaft and on both axial sides of the guiding sleeve, and when the limiting portion contacts the end of the guiding groove, the limiting member contacts the end surface of the guiding sleeve.

[0016] In some examples of the present utility model, an installation hole is provided at the highest point of the rib, and the limiting member is installed in the installation hole and protrudes from the rib.

[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 partly given in the following description, partly will become obvious from the following description, or will 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 obvious 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 2Explosion diagram of a steering column assembly according to an embodiment of the present utility model;

[0022] Figure 3 Structural schematic diagram of a steering shaft according to an embodiment of the present utility model;

[0023] Figure 4 Side view of a guide sleeve according to an embodiment of the present utility model;

[0024] Figure 5 Structural schematic diagram of a steering column according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] 100, steering column assembly;

[0027] 1, steering shaft; 11, rib; 2, guide sleeve; 21, groove; 22, limiting portion;

[0028] 3, steering column; 31, guide groove; 4, buffer sleeve; 5, limiting member. Detailed implementation manners

[0029] The embodiments of the present utility model will be described in detail below. The embodiments described with reference to the drawings are exemplary.

[0030] Reference is made below to Figures 1-5 Describe a steering column assembly 100 according to an embodiment of the present utility model, which can limit the number of rotation turns of the steering shaft 1, thereby achieving a protection effect on the angle sensor and the clock spring.

[0031] In combination with Figures 1-5 As shown, the steering column assembly 100 according to the first aspect embodiment of the present utility model includes a steering shaft 1, a guide sleeve 2, and a steering column 3. Among them, the steering shaft 1 is fixedly connected to the steering wheel, and when the steering wheel rotates, the steering shaft 1 will be driven to rotate synchronously.

[0032] Specifically, the steering shaft 1 is provided with a plurality of ribs 11 that protrude radially outward along it and extend along its axial direction. The plurality of ribs 11 are sequentially connected along the circumferential direction of the steering shaft 1. The cross-section of the rib 11 is arched. The guide sleeve 2 is sleeved on the steering shaft 1. The guide sleeve 2 is provided with a plurality of grooves 21 that are recessed radially outward along it and extend along its axial direction. The plurality of grooves 21 are sequentially connected along the circumferential direction of the guide sleeve 2. The plurality of ribs 11 and the plurality of grooves 21 are in one-to-one correspondence and cooperation. The guide sleeve 2 is provided with a limiting portion 22. The steering column 3 is sleeved on the steering shaft 1 and the guide sleeve 2. The steering column 3 is provided with a guide groove 31. The limiting portion 22 is fitted in the guide groove 31. When the limiting portion 22 contacts the end of the guide groove 31, the steering column 3 and the guide sleeve 2 are limited and fitted in the circumferential direction of the steering shaft 1.

[0033] Specifically, when the steering wheel is rotated, the steering wheel drives the steering shaft 1 to rotate synchronously. At the same time, the steering shaft 1 drives the guide sleeve 2 sleeved on its outer periphery to rotate synchronously as well.

[0034] Furthermore, a guide groove 31 for guiding the movement direction of the guide sleeve 2 is provided on the outer periphery of the steering column 3. In this way, the limiting portion 22 on the guide sleeve 2 can move along a specified movement path, so that the guide sleeve 2 can not only perform a synchronous rotational movement along with the steering shaft 1, but also achieve an axial linear movement relative to the steering column 3, thereby ensuring the movement stability and accuracy of the guide sleeve 2.

[0035] Among them, the groove 21 on the outer periphery of the guide sleeve 2 can cooperate with the rib 11 on the outer periphery of the steering shaft 1 to form a circumferential limiting effect. Moreover, the limiting portion 22 on the guide sleeve 2 is movably arranged in the guide groove 31 of the steering column 3. In this way, when the limiting portion 22 on the guide sleeve 2 rotates relative to the guide groove 31 of the steering column 3, the limiting portion 22 is subjected to an axial force from the guide groove 31, causing the guide sleeve 2 to generate an axial displacement, that is, achieving the effect that the guide sleeve 2 makes an axial linear movement under the influence of the axial force from the rotational movement.

[0036] Furthermore, the guide sleeve 2 is sleeved on the steering shaft 1, and the steering column 3 is further sleeved on the guide sleeve 2 and fixed. When the guide sleeve 2 rotates with the rotation of the steering shaft 1, the limiting portion 22 on the guide sleeve 2 moves relative to the guide groove 31 on the steering column 3 until the limiting portion 22 contacts the end of the guide groove 31 (during the rotation of the limiting portion 22 on the guide sleeve 2 relative to the guide groove 31 on the steering column 3, the limiting portion 22 will be subjected to an axial force from the guide groove 31, causing an axial displacement of the guide sleeve 2). At this time, a circumferential limiting cooperation relationship is generated between the guide groove 31 and the limiting portion 22, that is, the end of the guide groove 31 prevents the limiting portion 22 from continuing to rotate. In this way, the number of continuous rotations of the steering shaft 1 in a certain direction (such as clockwise or counterclockwise) can be effectively limited, so as to achieve the effect of limiting the number of continuous rotations of the steering wheel in a certain direction (such as clockwise or counterclockwise), and further improve the protection effect on the angle sensor and the clock spring (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. Therefore, the hard limit of the rack stroke of the steering gear in the traditional steering system will not meet the purpose of mechanically hard limiting the number of steering wheel turns. 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 for the angle range. Therefore, the steering shaft cannot rotate arbitrarily. The embodiment in this case can effectively achieve the effect of limiting the number of rotations of the steering wheel, so as to achieve the protection effect of protecting the angle sensor and the clock spring). In addition, the rotation limiting mechanism has a simple and reliable structure, low cost and small volume, effectively improving its practicability.

[0037] Specifically, the axial dimensions of the two end portions of the guide groove 31 on the steering column 3 with the largest distance in the axial direction of the steering shaft 1 define an adjustment interval for the axial linear movement of the guide sleeve 2 relative to the steering column 3.

[0038] Thus, by providing the steering column assembly 100, it can limit the number of rotations of the steering shaft 1, so as to achieve the protection effect on the angle sensor and the clock spring, and it has a simple and reliable structure, low cost and small volume.

[0039] According to some alternative embodiments of the present invention, in combination with Figure 2 and Figure 5 as shown, the guide groove 31 is spiral on the outer periphery of the steering column 3.

[0040] Among them, the guiding groove 31 extends spirally along the outer periphery of the steering column 3, so that it is convenient for the guiding sleeve 2 to perform a linear motion along the axial direction during the rotational motion. On the one hand, this allows the steering shaft 1 to rotate multiple turns. On the other hand, it is also convenient to accurately limit the number of rotation turns of the steering shaft 1 by setting the effective path length of the guiding groove 31, so as to ensure the accurate limit effect of the steering column assembly 100 on the number of turns of the steering wheel. Among them, the spiral guiding groove 31 also has a certain self-locking property, so as to prevent the guiding sleeve 2 from rotating and descending under the action of its own gravity during the process of rising relative to the steering column 3.

[0041] Specifically, as shown in combination with Figure 1 , Figure 2 and Figure 4 , there are multiple limiting portions 22, and the multiple limiting portions 22 are arranged at intervals on the guiding sleeve 2, and the shape formed by connecting the multiple limiting portions 22 in sequence is spiral.

[0042] It can be understood that multiple limiting portions 22 are arranged at intervals on the outer wall of the guiding sleeve 2, and the spiral shape formed by connecting the multiple limiting portions 22 matches the spiral shape of the guiding groove 31. In this way, the multiple limiting portions 22 can all smoothly slide relative to the guiding path of the guiding groove 31 (actually, the guiding groove 31 is fixed and the limiting portions 22 slide relative to the guiding groove 31). Moreover, since the multiple limiting portions 22 are connected to form spiral segments at different positions on the guiding groove 31, the accuracy of the relative sliding of the guiding groove 31 along the limiting portions 22 can be improved, thereby improving the movement accuracy of the guiding sleeve 2.

[0043] Among them, the multiple limiting portions 22 can disperse the axial force from the guiding groove 31 at different circumferential positions, improve the force uniformity of the guiding sleeve 2, avoid local stress concentration, and thus enhance the movement smoothness and smoothness of the guiding sleeve 2.

[0044] Furthermore, as shown in combination with Figure 1 , Figure 2 and Figure 4 , the multiple limiting portions 22 correspond to the multiple grooves 21 one by one, and a limiting portion 22 is arranged at the lowest point of each groove 21. That is to say, along the radial direction, at the bottom of each groove 21 (that is, the position farthest from the center of the guiding sleeve 2 and closest to the guiding groove 31), a limiting portion 22 is arranged towards the direction away from the center. In this way, the manufacturing size of the limiting portion 22 can be shortened, thereby reducing the extra consumption of materials.

[0045] According to some alternative embodiments of the present invention, as shown in combination with Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the guiding groove 31 penetrates through the outer peripheral wall of the steering column 3 along the radial direction of the steering column 3. Such an arrangement facilitates the limiting portion 22 on the guiding sleeve 2 inside the steering column 3 to radially extend into the guiding groove 31 (or part of the limiting portion 22 radially protrudes out of the guiding groove 31). Thus, on the basis that circumferential limiting cooperation can occur when the limiting portion 22 contacts the end of the guiding groove 31, it can also achieve the effect of smoothly sliding the guiding groove 31 relative to the limiting portion 22 within the set stroke without interference, thereby improving the rationality of its arrangement.

[0046] According to some alternative embodiments of the present invention, in combination with Figure 1 、 Figure 2 and Figure 4 As shown, the steering column assembly 100 further includes a buffer sleeve 4. The guiding sleeve 2 is sleeved on the buffer sleeve 4. The cross-sectional shape of the buffer sleeve 4 is the same as that of the guiding sleeve 2, so that the buffer sleeve 4 contacts the steering shaft 1.

[0047] Furthermore, the guiding sleeve 2 is sleeved on the outer periphery of the buffer sleeve 4, and the cross-sectional shape of the buffer sleeve 4 is the same as that of the guiding sleeve 2. In this way, the buffer sleeve 4 can better fit the outer surface of the guiding sleeve 2 for assembly, thereby enhancing the connection firmness and tightness between the two, and further ensuring the overall consistency of the guiding sleeve 2.

[0048] In addition, the buffer sleeve 4 can absorb and disperse impact energy, reducing vibration and noise. Among them, the buffer sleeve 4 can effectively absorb and disperse the impact energy received by the guiding sleeve 2, and can also play the role of reducing friction, thereby extending the service life of the guiding sleeve 2.

[0049] In addition, by synchronizing the hard limit (i.e., the limiting groove, the guiding groove 31, etc.) and the soft limit (i.e., the buffer sleeve 4), the feel motor can reduce the demand for the torque at the end of the steering wheel, so that the power of the feel motor can be reduced by more than 75%, which can effectively reduce the size, volume and cost of the motor.

[0050] According to some alternative embodiments of the present invention, in combination with Figure 2 、 Figure 4 and Figure 5 As shown, the limiting portion 22 is configured as a pin column, and the limiting portion 22 protrudes from the outer peripheral surface of the guiding sleeve 2 towards the guiding groove 31.

[0051] Among them, the pin column can better withstand variable loads and impacts. One end of the limiting portion 22 is connected to the outer wall of the guiding sleeve 2, and the other end thereof protrudes towards the guiding groove 31. In this way, it is convenient for the limiting portion 22 to extend into the guiding groove 31. Thus, on the basis that circumferential limiting cooperation can occur when the limiting portion 22 contacts the end of the guiding groove 31, it can also achieve the effect of smoothly sliding the guiding groove 31 relative to the limiting portion 22 within the set stroke without interference, thereby improving the rationality of its arrangement.

[0052] According to some alternative embodiments of the present utility model, in combination with Figures 1-3 As shown, the steering column assembly 100 further includes a limiting member 5. The limiting member 5 is disposed on the steering shaft 1, and the limiting member 5 is located on both axial sides of the guide sleeve 2. When the limiting portion 22 contacts the end of the guide groove 31, the limiting member 5 contacts the end face of the guide sleeve 2.

[0053] Further, along the axial direction of the steering shaft 1, limiting members 5 are respectively formed at opposite ends of the steering shaft 1. In this way, when the guide sleeve 2 performs an axial linear motion relative to the steering column 3, the limiting member 5 can form an axial limiting cooperation relationship with the axial end face of the guide sleeve 2, and define an adjustment range within which the guide sleeve 2 can perform an axial linear motion relative to the steering column 3.

[0054] For example, when the steering wheel rotates (it can be a forward rotation or a reverse rotation), the steering wheel will drive the steering shaft 1 to rotate. The steering shaft 1 drives the guide sleeve 2 to rotate through the cooperation of the rib 11 and the groove 21. The limiting portion 22 on the guide sleeve 2 rotates relative to the guide groove 31 of the steering column 3. Since the steering column 3 is circumferentially fixed, the guide sleeve 2 converts its rotational motion relative to the steering column 3 into an axial linear motion of the guide sleeve 2 relative to the steering column 3 (that is, during the relative rotation of the limiting portion 22 on the guide sleeve 2 relative to the guide groove 31 of the steering column 3, the limiting portion 22 is subjected to an axial force from the guide groove 31, causing the guide sleeve 2 to generate an axial displacement).

[0055] In summary, the limiting members 5 at both axial ends of the steering shaft 1 jointly define the limit positions where the guide sleeve 2 can perform an axial linear motion relative to the steering shaft 1, thereby facilitating the determination of the final set number of steering wheel limit turns, and further achieving the protection effect on the angle sensor and the clock spring.

[0056] Specifically, in combination with Figures 1-3 As shown, an installation hole is provided at the highest point of the rib 11. The limiting member 5 is installed in the installation hole, and the limiting member 5 protrudes from the rib 11.

[0057] It can be understood that an installation hole is provided at the highest point of each rib 11 (that is, the position on the rib 11 farthest from the center of the steering shaft 1) in a direction away from the center. The installation hole can provide an installation and fixing position for the limiting member 5. In this way, on the basis that the limiting member 5 forms an axial limiting effect on the guide sleeve 2, the manufacturing size of the limiting member 5 can be shortened, thereby reducing the additional consumption of materials.

[0058] According to an embodiment of the second aspect of the present utility model, a vehicle includes the steering column assembly 100 of the above embodiment. Thus, the vehicle (adopting a steer-by-wire system) with this steering column assembly 100 can mechanically limit the number of turns of the steering wheel, thereby achieving the protection effect on the angle sensor and the clock spring, and further improving the driving safety of the vehicle.

[0059] 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 therefore should not be construed as a limitation of the present utility model.

[0060] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be 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.

[0061] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means 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.

[0062] 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 purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

[0063] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means 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.

[0064] 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: A steering shaft, wherein the steering shaft is provided with a plurality of convex strips protruding outward in a radial direction thereof and extending in an axial direction thereof, wherein the plurality of convex strips are sequentially connected along a circumferential direction of the steering shaft, and wherein the cross section of the convex strips is an arch; A guide sleeve, the guide sleeve is sleeved on the steering shaft, the guide sleeve is provided with a plurality of grooves which are recessed outward in the radial direction and extend in the axial direction, the plurality of grooves are sequentially connected along the circumference of the guide sleeve, the plurality of convex strips are matched with the plurality of grooves in a one-to-one correspondence, and the guide sleeve is provided with a limiting portion; A steering column, wherein the steering column is sleeved on the steering shaft and the guide sleeve, the steering column is provided with a guide groove, the limiting portion is matched with the guide groove, and when the limiting portion contacts the end of the guide groove, the steering column and the guide sleeve are matched in the circumferential limit position of the steering shaft.

2. The steering column assembly according to claim 1, characterized in that: The guide groove is spirally shaped on the outer circumference of the steering column.

3. The steering column assembly according to claim 2, characterized in that: There are a plurality of the limiting parts, and the plurality of limiting parts are arranged at intervals on the guide sleeve and a shape formed by sequentially connecting the limiting parts is a spiral shape.

4. The steering column assembly according to claim 3, characterized in that: The plurality of limiting portions correspond to the plurality of grooves one by one, and the limiting portion is arranged at the lowest point of each groove.

5. The steering column assembly according to claim 1, characterized in that: The guide groove penetrates the outer peripheral wall of the steering column along the radial direction of the steering column.

6. The steering column assembly according to claim 1, characterized in that: Also includes: The buffer sleeve is sleeved on the guide sleeve, and the cross-sectional shape of the buffer sleeve is the same as the cross-sectional shape of the guide sleeve, so that the buffer sleeve contacts the steering shaft.

7. The steering column assembly according to claim 1, characterized in that: The limiting portion is configured as a pin, and the limiting portion is protruded from the outer peripheral surface of the guide sleeve toward the guide groove.

8. The steering column assembly according to claim 1, characterized in that: Also includes: A limiting member is arranged on the steering shaft and located on both axial sides of the guide sleeve. When the limiting portion contacts the end of the guide groove, the limiting member contacts the end surface of the guide sleeve.

9. The steering column assembly according to claim 8, characterized in that: A mounting hole is arranged at the highest point of the convex strip, and the limiting member is mounted in the mounting hole and protrudes from the convex strip.

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

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