Steering column, steering system and vehicle

Abstract

According to the steering column, the steering system and the vehicle, higher flexibility and stability are provided for the vehicle steering system through the unique detachable connection design and the axial rotation capacity of a steering shaft. A main body structure comprises a steering shaft, a universal joint assembly and a connecting piece, the connecting piece is detachably connected with the universal joint assembly, and the connecting piece is configured to be detachably connected with the steering shaft which rotates by multiple different angles in the axial direction of the steering shaft. Meanwhile, due to the design, installation, maintenance and part replacement are facilitated, and the complexity and cost of vehicle maintenance are reduced. In modern automobile manufacturing, the application of the structure is beneficial to improving the overall performance and driving experience of the automobile.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and more particularly to a steering column, a steering system, and a vehicle. Background Art

[0002] The automotive steering system is a very important component in an automobile. Its function is to control the turning direction of the automobile and ensure the safe and smooth driving of the automobile. The steering system of an automobile includes a steering shaft and a universal joint assembly. For different vehicle models, the steering shaft and the universal joint assembly have different assembly angles. In order to adapt to the assembly angles of different vehicle models, it is necessary to produce steering shafts and universal joint assemblies of different specifications, which increases the development cost. Summary of the Utility Model

[0003] The problem to be solved by the present utility model is to provide a steering column in view of the above-mentioned defects of the prior art. By adopting a simple structure, a connecting piece is ingeniously and conveniently added, and the connecting piece is used as an intermediate piece to detachably connect the steering shaft and the universal joint assembly, so that the steering shaft can be adjusted and assembled at multiple different angles, effectively solving the angles required by the universal joint assemblies of different vehicle models, reducing costs and having a simple assembly.

[0004] To achieve the above object, the present utility model provides a steering column, including:

[0005] A steering shaft, a universal joint assembly, and a connecting piece. The connecting piece is fixedly connected to the universal joint assembly, and the connecting piece is configured to be detachably connected to the steering shaft that can rotate multiple different angles around the axial direction of the steering shaft.

[0006] Preferably, the connecting piece includes a connecting portion, and the connecting portion is adapted to be sleeved on the steering shaft so that the connecting portion can be detachably connected to the steering shaft that can rotate multiple different angles around the axial direction of the steering shaft.

[0007] Preferably, the steering shaft is provided with a first spline, and the inner wall of the connecting portion is provided with an internal spline, and the internal spline is adapted to be in limit fit with the first spline.

[0008] Preferably, the steering shaft is provided with a positioning groove, and the positioning groove is arranged on a side of the connecting portion close to the universal joint assembly, and the positioning groove is used to cooperate with a first fixing member to limit the axial movement of the connecting portion along the steering shaft.

[0009] Preferably, the connecting piece includes a positioning portion, the positioning portion is fixedly connected to the connecting portion, and the positioning portion is also detachably connected to the universal joint assembly through a second fixing member.

[0010] Preferably, the positioning portion is adapted to be in positioning fit with the universal joint assembly to limit the rotation of the connecting piece relative to the universal joint assembly.

[0011] Preferably, the universal joint assembly is provided with a first groove, and the positioning portion is snap - connected to the first groove.

[0012] Preferably, the universal joint assembly is provided with a fixing hole, the fixing hole is arranged corresponding to the position of the first groove, and the second fixing member is adapted to pass through the fixing hole to fix the positioning portion and the universal joint assembly.

[0013] Preferably, the positioning portion is provided with a first avoidance groove, and the first avoidance groove is adapted to avoid the second fixing member passing through the fixing hole.

[0014] Preferably, the positioning portion is provided with a reinforcing rib, and the reinforcing rib is arranged at a position of the positioning portion close to the connecting portion.

[0015] Preferably, the steering shaft is provided with a second spline, the position of the second spline is arranged at one end of the steering shaft close to the universal joint assembly, and the inner wall of one end of the universal joint assembly close to the steering shaft is provided with a third spline, and the third spline is adapted to be engaged with the second spline.

[0016] Preferably, the steering shaft further includes a third fixing member, and the third fixing member is adapted to limit the axial movement of the connecting member along the steering shaft and fix the connecting member and the universal joint assembly at the same time.

[0017] The present utility model further provides a steering system, including a steering wheel and a steering column connected to the steering wheel. This steering system provides a safe, reliable and easy - to - operate driving experience for the driver by combining the steering wheel and an advanced steering column structure.

[0018] The present utility model further provides a vehicle, including a vehicle body and a steering system arranged on the vehicle body.

[0019] Adopting the above - mentioned scheme, the beneficial effects of the present utility model are as follows:

[0020] The present utility model designs a steering column, a steering shaft, a universal joint assembly and a connecting member. The connecting member is detachably connected to the universal joint assembly, and the connecting member is constructed to be detachably connected to the steering shaft that can rotate at multiple different angles along the axial direction of the steering shaft.

[0021] The connecting arm of the connecting piece is in open - fit with the upper joint fork of the universal joint assembly and is locked by bolts. When the locking torque reaches a certain value, the notch of the connecting piece is coaxial with the bolt hole position of the universal joint assembly. The internal spline of the connecting piece is in fit with the spline of the lower steering shaft, and the fitting end can be adjusted at multiple angles according to actual angle requirements. This means that regardless of the angular position of the steering shaft, the connecting piece can firmly connect it to the universal joint assembly, ensuring the stability and reliability of the steering system.

[0022] Other features and advantages of the present application will become clear through the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings incorporated in and forming a part of this specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0024] Figure 1 It is an exploded view of the structure of an embodiment of the steering column of the present utility model.

[0025] Figure 2 It is a schematic structural diagram of the connecting piece of the present utility model.

[0026] Figure 3 It is a structural diagram of the lower steering shaft of the present utility model.

[0027] Figure 4 It is a schematic diagram of the universal joint assembly of the present utility model.

[0028] Reference Numerals:

[0029] 1. Steering shaft; 11. Lower steering shaft; 111. First spline; 112. Positioning groove; 113. Second spline; 2. Connecting piece; 21. Positioning part; 211. Connecting arm; 212. First relief groove; 213. Reinforcing rib; 22. Connecting part; 221. Internal spline; 3. Third fixing piece; 4. Universal joint assembly; 411. First groove; 412. Third spline; 413. Fixing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In the following description, numerous specific details are given to provide a more thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the embodiments of the present application may be practiced without one or more of these details. In other instances, well - known technical features have not been described in order to avoid obscuring the embodiments of the present application.

[0031] In this text, ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" does not imply the existence of a "second component" by itself, and the term "second component" does not imply the existence of a "first component" by itself.

[0032] In this text, "up", "down", "front", "back", "left", "right", etc. are only used to represent the relative positional relationship between relevant parts, rather than defining the absolute positions of these relevant parts.

[0033] In this text, "equal", "same", etc. are not strict mathematical and / or geometric limitations, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc.

[0034] Unless otherwise specified, the numerical ranges in this text include not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0035] In order to thoroughly understand the present utility model, detailed structures will be presented in the following description to explain the technical solutions proposed by the present utility model. Optional embodiments of the present utility model are described in detail as follows. However, in addition to these detailed descriptions, the present utility model may also have other implementation manners.

[0036] As Figure 1 shown, the steering column of the embodiment of the present utility model includes: a steering shaft 1, a universal joint assembly 4, and a connecting member 2. The connecting member 2 is fixedly connected to the universal joint assembly 4, and the connecting member 2 is configured to be detachably connected to the steering shaft 1 that can rotate around the axial direction of the steering shaft 1 by multiple different angles.

[0037] It can be understood that for different vehicle models, the steering shaft 1 and the universal joint assembly 4 have different assembly angles. By being able to detachably connect the connecting member 2 to the universal joint assembly 4 and to the steering shaft 1 that rotates around the axial direction of the steering shaft 1 by different angles, for the steering shaft 1 and the universal joint assembly 4 with different assembly angles, they can all be detachably connected through the connecting member 2. Thus, for the steering column of the embodiment of the present utility model, by providing the connecting member 2, the assembly requirements of multiple vehicle models can be achieved, without the need to provide different steering shafts 1, reducing costs and having a simple assembly.

[0038] It can be understood that the connecting member 2 is configured to be detachably connected to the steering shaft 1 that can axially rotate around the steering shaft 1 by multiple different angles, which means that when the steering shaft 1 axially rotates around itself by multiple angles, the connecting member 2 can be detachably connected to the steering shaft 1. That is, when the steering shaft 1 has multiple different assembly angles relative to the universal joint assembly 4, the connecting member 2 can be detachably connected to the steering shaft 1. Thus, for different vehicle models, the assembly angle between the universal joint assembly 4 and the steering shaft 1 can be adjusted according to actual needs.

[0039] One end of the connecting member 2 is positioned relative to the universal joint assembly 4. The positioning form is not limited to using snap-fitting, fitting, etc. to complete the positioning. After the connecting member 2 is positioned with the universal joint assembly 4, according to the requirements of the supplier and different vehicle models, by adjusting the different connection orientations between the connecting member 2 and the steering shaft 1, the requirements of different angles can be met to ensure the correct installation position and various requirements.

[0040] In some embodiments, the connecting member 2 includes a connecting portion 22. The connecting portion 22 is adapted to be sleeved on the steering shaft 1 so that the connecting portion 22 can be detachably connected to the steering shaft 1 that can axially rotate around the steering shaft 1 by multiple different angles. More specifically, the connecting portion 22 is designed to be able to be sleeved on the steering shaft 1. This sleeving method can conveniently realize the assembly of the connecting member 2 and the steering shaft 1 in multiple connection orientations, not only simplifying the installation process, but also enabling the connecting member 2 to closely fit the steering shaft 1, reducing the shaking or unstable factors caused by the gap.

[0041] At the same time, the sleeving structure is also convenient for subsequent maintenance and replacement, improving the maintainability of the system. The connection between the connecting portion 22 and the steering shaft 1 is detachable, which means that when replacement or maintenance is required, the connecting member 2 can be conveniently removed from the steering shaft 1 without large-scale disassembly of the entire steering system. This design greatly shortens the maintenance time and reduces the maintenance cost.

[0042] The design of the connecting portion 22 allows it to be connected to the steering shaft 1 that axially rotates around the steering shaft 1 by multiple different angles, which ensures that the connecting member 2 can maintain a stable connection state regardless of the angle of the steering shaft 1. This multi-angle adaptability is crucial for improving the flexibility and response speed of the steering system.

[0043] The connecting portion 22 is preferably configured as a circular ring structure. This design not only facilitates sleeving on the steering shaft 1, but also increases the contact area, improving the stability and reliability of the connection. At the same time, the circular ring structure also has a certain elasticity, which can absorb and relieve the impact and vibration generated during the steering process to a certain extent, protecting the steering shaft 1 and the connecting member 2 from damage.

[0044] In summary, the design of the connecting member 2 and its connecting portion 22 fully considers the actual requirements of the steering system. Through features such as the sleeved structure, detachable nature, multi-angle adaptability, and durability, a flexible, reliable, and stable connection with the steering shaft 1 is achieved. This design is of great significance for improving the performance and reliability of the entire steering system and provides a strong guarantee for the safe driving of the vehicle.

[0045] In some embodiments, the steering shaft 1 includes a lower steering shaft 11. The lower steering shaft 11 is provided with a first spline 111, and the inner wall of the connecting portion 22 is provided with an internal spline 221. The internal spline 221 is adapted to be in limit fit with the first spline 111. More specifically, the first spline 111 is provided at a position on the lower steering shaft 11 close to the upper end of the steering shaft 1 where it is connected to the steering wheel. As Figure 3 shown, the lower steering shaft 11 is provided with a first spline 111. The axial length of the first spline 111 is adapted to be compatible with the internal spline 221, and different axial lengths and depths can be selected according to different requirements. Optionally, the first spline 111 and the internal spline 221 are connected or fixed between two or more components through the combination of a recessed portion (concave structure) and a protruding portion (convex structure), which can effectively prevent the relative rotation between the lower steering shaft 11 and the connecting member 2. This cooperation method can ensure the tight connection between components and improve the stability and durability of the overall structure.

[0046] In some embodiments, as Figure 3 shown, the steering shaft 1 is provided with a positioning groove 112. The positioning groove 112 is provided on the side of the connecting portion 22 close to the universal joint assembly 4. The positioning groove 112 is used to cooperate with a first fixing member to limit the axial movement of the connecting portion 22 along the steering shaft 1. More specifically, the main function of the positioning groove 112 is to cooperate with a first fixing member (such as a corresponding structure on the connecting member 2 or a separate fixing pin, bolt, etc.) to limit the axial movement of the connecting portion 22 along the steering shaft 1. This limitation ensures that the connecting portion 22 will not cause the connection to loosen or fail due to axial sliding when transmitting torque and bearing loads. In addition to limiting the axial movement, the positioning groove 112 also improves the overall connection stability and reliability by increasing the contact points or constraint conditions between the connecting portion 22 and the steering shaft 1. In this solution, the side surface of the positioning groove 112 is an inclined surface, and this inclined surface is used to contact the first fixing member.

[0047] In some embodiments, the connecting member 2 includes a positioning portion 21. The positioning portion 21 is fixedly connected to the connecting portion 22, and the positioning portion 21 is also detachably connected to the universal joint assembly 4 through a second fixing member.

[0048] The detachable connection between the positioning portion 21 and the universal joint assembly 4 makes the assembly and maintenance more convenient.

[0049] In some embodiments, the positioning portion 21 is adapted to be positioned and cooperate with the universal joint assembly 4 to limit the rotation of the connecting member 2 relative to the universal joint assembly 4.

[0050] More specifically, the positioning portion 21 is an integral part of the connecting member 2 and is fixedly connected to the connecting portion 22. This fixed connection can be welding, riveting, bolt connection, integral molding or other forms of mechanical connection to ensure the stability and reliability of both during the working process. The fixed connection between the positioning portion 21 and the connecting portion 22 not only transmits force and torque, but also ensures the structural integrity of both. This integrity is crucial for achieving the precise fit between the connecting member 2, the steering shaft 1 and the universal joint assembly 4. By the anti-rotation cooperation between the positioning portion 21 and the universal joint assembly 4, the relative rotation between the positioning portion 21 and the universal joint assembly 4 during their working process or due to other factors such as vehicle vibration is avoided, further improving the connection reliability between the steering shaft 1 and the universal joint assembly 4.

[0051] In some embodiments, as Figure 4 described, the universal joint assembly 4 is provided with a first groove 411, and the positioning portion 21 is snap-fitted to the first groove 411. More specifically, the first groove 411 can be selectively provided at the yoke position of the universal joint assembly 4 for easy snap-fitting with the positioning portion 21. The first groove 411 can be designed in the form of a long strip, a cylinder or other structures convenient for assembly, and the positioning portion 21 is designed to be able to precisely fit into the first groove 411. This snap-fitting method may include but is not limited to interference fit, clearance fit or fit with a locking mechanism. Whichever method is adopted, it should be ensured that the positioning portion 21 can maintain a stable connection state after being snapped into the groove.

[0052] During the installation process, first, the connecting member 2 needs to be aligned with the universal joint assembly 4, and then the positioning portion 21 is accurately snapped into the first groove 411. During the installation process, a certain force may need to be applied to ensure that the positioning portion 21 is fully snapped into the first groove 411 and reaches the required fitting tightness.

[0053] In some embodiments, the universal joint assembly 4 is provided with a fixing hole 413, and the fixing hole 413 is provided corresponding to the position of the first groove 411. The second fixing member is adapted to pass through the fixing hole 413 to fix the positioning portion 21 and the universal joint assembly 4. More specifically, fixing holes are provided at the yoke position of the universal joint assembly 4. The fixing hole 413 can be selectively provided at the center position or an off-center position of the first groove 411. The fixing member can be selectively provided with a positioning pin, a circlip, a screw or a bolt and other structural members that can be used for fixing. After the positioning portion 21 of the connecting member 2 is snap-fitted into the first groove 411, the fixing member passes through the fixing hole 413 and is in interference fit with the positioning portion 21 and the universal joint assembly at the same time to complete the fixing and prevent falling.

[0054] In some embodiments, the positioning portion 21 is provided with a first avoidance groove 212, and the first avoidance groove 212 is adapted to avoid the second fixing member passing through the fixing hole 413. More specifically, the positioning portion 21 extends along the direction of the universal joint assembly 4 to form a connecting arm 211. The length of the connecting arm 211 is adapted to match the first groove 411. The connecting arm 211 is designed with a structure that cooperates with the first groove 411. The lengths and widths of the two are equal. The thickness of the connecting arm 211 cooperates with the opening of the upper joint fork of the universal joint assembly 4 and is locked by a bolt. When the locking torque reaches a certain level, the thickness of the locking arm of the joint fork can be adapted according to the size of the opening that matches the upper joint fork of the universal joint assembly 4 to complete the interference fit and ensure a firm connection. A first avoidance groove 212 is provided on the side of the connecting arm 211 facing the universal joint assembly 4. The design position of the first avoidance groove 212 should be consistent with the fixing hole 413. Taking the fixing hole 413 as the center of the circle, the diameter of the first avoidance groove 212 should be greater than or equal to the diameter of the positioning hole 413 to facilitate the second fixing member to pass through the connecting arm 211.

[0055] In some embodiments, it can be seen that a positioning groove 112 is provided between the first spline 111 and the second spline 113 of the lower steering shaft 11. The positioning grooves 112 are evenly distributed along its axial direction and surround a circle. The positioning groove 112 is configured as a "concave" notch, and the angle between the two walls is less than or equal to 60°. It can also be seen that a first avoidance groove 212 is designed on the side of the connecting arm 211 of the positioning portion 21 facing the universal joint assembly. The shape of the first avoidance groove 212 is configured as an arc. Fixing holes 413 are provided on both sides of the position where the first groove 411 of the universal joint assembly 4 corresponds to the axis of the first avoidance groove 212. The diameter of the fixing hole 413 is preferably the same as the diameter of the first avoidance groove 212. After the lower steering shaft 11, the connecting member 2, and the universal joint assembly 4 are connected, the first avoidance groove 212 and the positioning groove 112 are in the same extending direction. The same extending direction refers to the direction perpendicular to the axial extension of the lower steering shaft 11. The central position of the first avoidance groove 212 is placed in the central part of the positioning groove 112. The radial length of the enclosed cavity can satisfy the partial passing of the third fixing member 3. The radial length of one end of the third fixing member 3 is greater than the radial length of the cavity. The third fixing member 3 is configured as a bolt. The screw passes through the cavity and abuts against the two walls of the cavity to fix the universal joint assembly 4 and the positioning portion 21. The diameter of the screw head is greater than the diameter of the fixing hole 413 so that the screw head can abut against the outer wall of the universal joint assembly 4 and is not easily detached, thereby strengthening the connection between the universal joint assembly 4 and the steering shaft 1.

[0056] In some embodiments, the positioning portion 21 is provided with a reinforcing rib 213, and the reinforcing rib 213 is disposed at a position of the positioning portion 21 close to the connecting portion 22. More specifically, the reinforcing rib 213 is arranged at a position of the positioning portion 21 close to the connecting portion 22. Such a position selection is based on considerations of mechanical principles and structural optimization. The position close to the connecting portion 22 is the main area where the positioning portion 21 bears the force and torque transmitted from the connecting portion 22. Therefore, arranging the reinforcing rib 213 here can more effectively improve the rigidity and load-bearing capacity of this area. The reinforcing rib 213 can effectively enhance the overall strength of the connecting member 2, enabling it to withstand greater external loads and stresses. At the same time, it can also significantly improve the rigidity of the connecting member 2, reducing deformation and torsion.

[0057] In some embodiments, the steering shaft 1 is provided with a second spline 113. The second spline 113 is located at one end of the steering shaft 1 close to the universal joint assembly 4. The inner wall of one end of the universal joint assembly 4 close to the steering shaft 1 is provided with a third spline 412, and the third spline 412 is adapted to mesh with the second spline 113. More specifically, the second spline 113 is arranged at one end of the steering shaft 1 facing the universal joint assembly 4. Such an arrangement ensures that when the steering shaft 1 is connected to the universal joint assembly 4, the second spline 113 can directly mesh with the third spline 412. When the steering shaft 1 is connected to the universal joint assembly 4, the second spline 113 will be inserted into the third spline 412 and mesh with it. This meshing mechanism not only realizes the efficient transmission of torque but also ensures the axial positioning between the connecting members 2 and prevents relative rotation.

[0058] The third spline 412 is designed as a full-tooth structure. The tooth profiles of the second spline 113 and the third spline 412 must be precisely matched to ensure that the two can mesh smoothly and transmit torque. The full-tooth structure is adapted to mesh with the second spline 113. The full-tooth structure can ensure the precise meshing between the tooth profile part and other transmission components, reducing the energy loss during the transmission process. This design enables the power to be transmitted to the next component more efficiently, improving the efficiency of the entire transmission system.

[0059] In some embodiments, the steering shaft 1 further includes a third fixing member 3. The third fixing member 3 is adapted to limit the axial movement of the connecting member 2 along the steering shaft 1, and at the same time fix the connecting member 2 and the universal joint assembly 4. More specifically, after the connecting member 2 is sleeved on the steering shaft 1 and clamped and fixed to the universal joint assembly 4, the positioning groove 112, the first relief groove 212, and the fixing hole 413 are adapted to be coaxially arranged. The third fixing member 3 can pass through the above three and simultaneously complete the fixation of the connecting member 2 and the steering shaft 1, as well as the connecting member 2 and the universal joint assembly 4, ensuring firm positioning and not easy to fall off. The third fixing member 3 can select different fixing structures according to actual needs and can be configured as a bolt.

[0060] It can be understood that in this embodiment, only one fixing member realizes the restriction of the aforementioned first fixing member on the axial movement of the connecting portion 22 along the steering shaft 1, and also realizes the fixing of the positioning portion 21 and the universal joint assembly 4 by the aforementioned second fixing member. Thus, the structure is more compact and the assembly is more convenient.

[0061] The embodiment of the present application also discloses a steering system, which includes a steering wheel and the aforementioned steering column axial positioning structure, and the reliability and convenience of the steering system are improved. This design enables the assembly to adjust the angle between the steering shaft 1 and the universal joint assembly 4 according to different requirements, which can avoid material mixing and reduce the development cost.

[0062] The embodiment of the present application also discloses a vehicle, which includes a vehicle body and the aforementioned steering system. By applying the optimized steering system to the vehicle, the driving comfort and safety of the vehicle can be significantly improved.

[0063] In summary, the steering system and vehicle disclosed in the embodiments of the present application realize flexible adjustment of the steering wheel height by adopting an optimized steering column mechanism and an accurate adjustment method, improving the driving comfort and safety. At the same time, the steering system also has high reliability and stability, reducing the safety risk caused by steering system failures in vehicles.

[0064] In the above embodiments, the differences between the various embodiments are mainly described. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a more optimal embodiment. Considering the simplicity of the text, they will not be elaborated here.

[0065] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A steering column, characterized in that: The invention comprises a steering shaft (1), a universal joint assembly (4), and a connecting member (2), wherein the connecting member (2) is fixedly connected to the universal joint assembly (4), the connecting member (2) is configured to be detachably connected to the steering shaft (1) which is rotated around the axial direction of the steering shaft (1) at multiple different angles, and the connecting member (2) comprises a connecting portion (22), wherein the connecting portion (22) is suitable for being sleeved on the steering shaft (1), so that the connecting portion (22) can be detachably connected to the steering shaft which is rotated around the axial direction of the steering shaft (1) at multiple different angles. The steering shaft (1) is provided with a first spline (111), the inner wall of the connecting portion (22) is provided with an internal spline (221), the internal spline (221) is suitable for limited cooperation with the first spline (111), the steering shaft (1) is provided with a positioning groove (112), the positioning groove (112) is arranged on a side of the connecting portion (22) close to the universal joint assembly (4), and the positioning groove (112) is used to cooperate with the first fixing member to limit the axial movement of the connecting portion (22) along the steering shaft (1).

2. A steering column according to claim 1, characterized in that: The connecting member (2) comprises a positioning portion (21), wherein the positioning portion (21) is fixedly connected to the connecting portion (22), and the positioning portion (21) is also detachably connected to the universal joint assembly (4) via a second fixing member.

3. A steering column according to claim 2, characterized in that: The positioning portion (21) is suitable for positioning and cooperating with the universal joint assembly (4) to limit the rotation of the connecting member (2) relative to the universal joint assembly (4).

4. A steering column according to claim 2, characterized in that: The universal joint assembly (4) is provided with a first groove (411), and the positioning portion (21) is snap-connected to the first groove (411).

5. A steering column according to claim 4, characterized in that: The universal joint assembly (4) is provided with a fixing hole (413), and the fixing hole (413) is arranged at a position corresponding to the first groove (411), and the second fixing member is suitable for penetrating the fixing hole (413) to fix the positioning portion (21) and the universal joint assembly (4).

6. A steering column according to claim 5, characterized in that: The positioning portion (21) is provided with a first avoidance groove (212), and the first avoidance groove (212) is suitable for avoiding the second fixing member passing through the fixing hole (413).

7. A steering column according to claim 2, characterized in that: The positioning portion (21) is provided with a reinforcing rib (213), and the reinforcing rib (213) is arranged at a position of the positioning portion (21) close to the connecting portion (22).

8. A steering column according to claim 1, characterized in that: The steering shaft (1) is provided with a second spline (113), and the second spline (113) is located at one end of the steering shaft (1) close to the universal joint assembly (4). A third spline (412) is provided on the inner wall of one end of the universal joint assembly (4) close to the steering shaft (1), and the third spline (412) is suitable for meshing with the second spline (113).

9. A steering column according to claim 1, characterized in that: The steering shaft (1) further comprises a third fixing member (3), wherein the third fixing member (3) is suitable for limiting the axial movement of the connecting member (2) along the steering shaft (1) and fixing the connecting member (2) and the universal joint assembly (4) at the same time.

10. A steering system, characterized in that: It comprises a steering wheel and a steering column as claimed in any one of claims 1 to 9, wherein the steering wheel is suitable for being connected to the steering shaft (1).

11. A vehicle, characterized in that: The invention comprises a vehicle body and the steering system as claimed in claim 10, wherein the steering system is arranged on the vehicle body.

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