Limiting assembly, steering system and vehicle

Abstract

The utility model provides a limiting assembly, a steering system and a vehicle. The limiting assembly comprises a first limiting piece and a second limiting piece, and a plurality of first stopping pieces are arranged at one axial end of the first limiting piece; the second limiting piece is rotationally matched with the first limiting piece, and the second limiting piece is provided with a plurality of second stopping pieces; at least two of the plurality of first stop pieces can be matched with at least two corresponding stop pieces of the plurality of second stop pieces so as to limit the moving stroke of the first limiting pieces or the second limiting pieces; through the corresponding stopping cooperation of the at least two first stopping pieces and the at least two second stopping pieces, the problem that the limiting effect of the limiting assembly is poor is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and more specifically, to a limiting component, a steering system and a vehicle. Background Art

[0002] In the prior art, the limiting component of the steering system usually realizes the limitation of the rotation angle of the vehicle steering wheel by the way that the nut rotates around the lead screw. However, since the nut and the lead screw are a single-sided force limiting structure, it is easy to cause a poor limiting effect of the limiting component.

[0003] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the Utility Model

[0004] An object of the utility model is to provide a new technical solution for a limiting component, a steering system and a vehicle.

[0005] According to a first aspect of the utility model, a limiting component is provided, wherein the limiting component comprises:

[0006] A first limiting member, and a plurality of first stop members are arranged at one axial end of the first limiting member;

[0007] A second limiting member, which is rotationally matched with the first limiting member, and a plurality of second stop members are arranged on the second limiting member;

[0008] At least two of the plurality of first stop members can be correspondingly stopped and matched with at least two of the plurality of second stop members to limit the moving stroke of the first limiting member or the second limiting member.

[0009] Optionally, a plurality of third stop members are arranged at the other axial end of the first limiting member, a plurality of fourth stop members are arranged on the second limiting member, and at least two of the plurality of third stop members are correspondingly stopped and matched with at least two of the plurality of fourth stop members.

[0010] Optionally, the first limiting member is sleeved on the second limiting member to divide the first limiting member into a first installation part and a second installation part axially distributed along the second limiting member, a plurality of the second stop members are arranged on the first installation part, and a plurality of the fourth stop members are arranged on the second installation part.

[0011] Optionally, there are two first stop members and two second stop members; the two first stop members and the two second stop members are correspondingly stopped and matched one by one.

[0012] Optionally, the two first stop members are arranged at intervals along the circumferential direction of the first limiting member;

[0013] The two second stoppers are arranged at intervals along the circumferential direction of the second limiting member.

[0014] Optionally, the two first stoppers are a first stop arm and a second stop arm, and the first stop arm and the second stop arm are symmetrically arranged about the center.

[0015] Optionally, the first limiting member is sleeved on the second limiting member.

[0016] Optionally, the first limiting member is in threaded connection with the second limiting member.

[0017] Optionally, the first stopper is substantially trapezoidal.

[0018] Optionally, the first stopper is substantially right trapezoidal.

[0019] Optionally, the second stopper is substantially cylindrical.

[0020] Optionally, the second limiting member includes a connecting portion, and the connecting portion is adapted to be in driving connection with the steering assembly.

[0021] According to a second aspect of the present invention, there is provided a steering system, including a housing and the limiting assembly according to any one of the first aspect, and the first limiting member is fixed to the housing.

[0022] According to a third aspect of the present invention, there is provided a vehicle, including the steering system according to the second aspect.

[0023] According to the limiting assembly provided by the embodiment of the present invention, the limiting assembly includes a first limiting member and a second limiting member. A plurality of first stoppers are arranged at one axial end of the first limiting member; the second limiting member is in rotational cooperation with the first limiting member, and a plurality of second stoppers are arranged on the second limiting member; at least two of the plurality of first stoppers can be in corresponding stop cooperation with at least two of the plurality of second stoppers to limit the moving stroke of the first limiting member or the second limiting member; by the corresponding stop cooperation of at least two first stoppers and at least two second stoppers, the problem of poor limiting effect of the limiting assembly is effectively solved.

[0024] Other features and advantages of the present invention will become clear through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention.

[0026] Figure 1It is a schematic structural diagram of a limit component in an embodiment of the present utility model.

[0027] Figure 2 It is a cross-sectional view of a steering system in an embodiment of the present utility model.

[0028] Figure 3 It is a schematic structural diagram of a steering system in an embodiment of the present utility model.

[0029] Figure 4 It is a side view of a steering system in an embodiment of the present utility model.

[0030] Explanation of reference numerals:

[0031] 1. First limit member; 11. Through hole; 12. First fixing portion; 13. First end face; 14. Second end face;

[0032] 2. Second limit member; 21. First mounting portion; 22. Second mounting portion; 23. Connecting portion;

[0033] 3. First stop member; 31. First stop arm; 32. Second stop arm;

[0034] 4. Second stop member; 41. First limit portion; 42. Second limit portion;

[0035] 5. End cover;

[0036] 6. Housing; 61. Second fixing portion;

[0037] 7. Bolt;

[0038] 8. Steering assembly;

[0039] 9. Third stop member; 91. Third stop arm; 92. Fourth stop arm;

[0040] 10. Fourth stop member; 101. Third limit portion; 102. Fourth limit portion. Detailed implementation manners

[0041] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present utility model.

[0042] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts belong to the scope protected by the present application.

[0043] The terms "first" and "second" in the description and claims of this application may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0044] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0046] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0047] According to an embodiment of this application, a limiting assembly is provided. Referring to Figure 1 , the limiting assembly includes a first limiting member 1 and a second limiting member 2. A plurality of first stop members 3 are provided at one axial end of the first limiting member 1; the second limiting member 2 is rotationally engaged with the first limiting member 1, and a plurality of second stop members 4 are provided on the second limiting member 2; at least two of the plurality of first stop members 3 can be correspondingly stopped and engaged with at least two of the plurality of second stop members 4 to limit the moving stroke of the first limiting member 1 or the second limiting member 2.

[0048] Specifically, in the embodiment of the present application, the first limiting member 1 may be a fixed block, and the second limiting member 2 may be a rotating shaft. At this time, the first limiting member 1 is a fixed member, and the first limiting member 1 is fixedly installed on the housing 6; the second limiting member 2 is a moving member, and the second limiting member 2 is connected to the steering assembly 8 of the steering system and has a certain moving stroke along the steering assembly 8.

[0049] Thus, since the second limiting member 2 can be rotationally engaged with the first limiting member 1, and after the second limiting member 2 is rotationally engaged with the first limiting member 1, at least two of the plurality of first stopping members 3 can be correspondingly stopped and engaged with at least two of the plurality of second stopping members 4, so when the driver rotates the steering wheel to the rotation angle set by the steering wheel, at least two of the first stopping members 3 can be correspondingly stopped and engaged with at least two of the second stopping members 4. In this way, the limiting assembly effectively limits the moving stroke of the second limiting member 2. Moreover, since the second limiting member 2 is also connected to the steering assembly 8 of the steering system, and the steering assembly 8 is connected to the steering wheel of the vehicle, the limiting assembly effectively limits the rotation angle of the steering wheel. At the same time, compared with the problem that the single-sided limiting of the limiting assembly is likely to result in a poor limiting effect by using the method of a nut rotating around a lead screw in the prior art, at least two of the first stopping members 3 in the embodiment of the present application can be correspondingly stopped and engaged with at least two of the second stopping members 4, effectively realizing the bilateral limiting of the limiting assembly, and thus significantly improving the limiting effect of the limiting assembly.

[0050] In addition, in the embodiment of the present application, the first limiting member 1 may also be a moving block, and the second limiting member 2 may also be a moving shaft. At this time, the first limiting member 1 is a moving member, and the first limiting member 1 is connected to the steering assembly 8 of the steering system and has a certain moving stroke along the steering assembly 8; the second limiting member 2 is a fixed member, and the second limiting member 2 is fixedly installed on the housing 6.

[0051] Of course, the first limiting member 1 and the second limiting member 2 in the embodiment of the present application may also adopt other connection forms, as long as the bilateral limiting of the limiting assembly can be realized. Those skilled in the art can select according to actual needs, and the present application does not make specific limitations here.

[0052] In addition, the first stop member 3 described in the embodiments of the present application may be integrally formed with the first limiting member 1, or connected to the first limiting member 1 by any one of screwing, riveting, bonding or welding; the second stop member 4 may also be integrally formed with the second limiting member 2, or connected to the second limiting member 2 by any one of screwing, riveting, bonding or welding. Those skilled in the art can make a choice according to actual needs, and the present application does not make specific limitations here.

[0053] In one embodiment, a plurality of third stop members 9 are provided at the other axial end of the first limiting member 1; a plurality of fourth stop members 10 are provided on the second limiting member 2, and at least two of the plurality of third stop members 9 are in corresponding stop cooperation with at least two of the plurality of fourth stop members 10.

[0054] Specifically, as Figure 1 shown, a plurality of third stop members 9 are provided at the other axial end of the first limiting member 1 described in the embodiments of the present application. For example, the first limiting member 1 includes a first end face 13 and a second end face 14, the first end face 13 and the second end face 14 are two opposite ends of the first limiting member 1, a plurality of the first stop members 3 are provided on the first end face 13, and a plurality of the third stop members 9 are provided on the second end face 14.

[0055] Thus, since a plurality of fourth stop members 10 are further provided on the second limiting member 2, in the embodiments of the present application, at least two of the third stop members 9 are in corresponding stop cooperation with at least two of the fourth stop members 10, effectively realizing the bilateral limitation of the limiting assembly, and further significantly improving the limiting effect of the limiting assembly.

[0056] In one embodiment, the first limiting member 1 is sleeved on the second limiting member 2 to divide the first limiting member 1 into a first installation portion 21 and a second installation portion 22. A plurality of the second stop members 4 are provided on the first installation portion 21, and a plurality of the fourth stop members 10 are provided on the second installation portion 22.

[0057] Specifically, as Figure 1 shown, the first limiting member 1 is sleeved on the second limiting member 2 in the embodiments of the present application, effectively realizing the stop cooperation between the first stop member 3 and the second stop member 4 provided on the first installation portion 21, and the stop cooperation between the third stop member 9 and the fourth stop member 10 provided on the second installation portion 22.

[0058] Therefore, in the embodiment of the present application, through the corresponding stop cooperation between the first stop member 3 and the second stop member 4, and the stop cooperation between the third stop member 9 and the fourth stop member 10, the limit assembly effectively restricts the moving stroke of the second limiting member 2 in two directions. Moreover, since the second limiting member 2 is also connected to the steering assembly 8 of the steering system, the limit assembly effectively restricts the rotation angle of the steering wheel in two directions.

[0059] In one embodiment, there are two first stop members 3 and two second stop members 4; the two first stop members 3 and the two second stop members 4 are in one-to-one corresponding stop cooperation.

[0060] Specifically, as Figure 1 shown, when the driver rotates the steering wheel clockwise to the set rotation angle of the steering wheel, the two first stop members 3 and the two second stop members 4 are in one-to-one corresponding stop cooperation, effectively ensuring the stability of the limit assembly's restriction on the rotation angle of the vehicle's steering wheel and significantly improving the limiting effect of the limit assembly.

[0061] In addition, in the embodiment of the present application, there may also be two third stop members 9 and two fourth stop members 10; the two third stop members 9 and the two fourth stop members 10 are in one-to-one corresponding stop cooperation. In this way, when the driver rotates the steering wheel counterclockwise to the set rotation angle of the steering wheel, the stability of the limit assembly's restriction on the rotation angle of the vehicle's steering wheel can also be ensured, and the limiting effect of the limit assembly is significantly improved.

[0062] In one embodiment, the two first stop members 3 are arranged at intervals along the circumferential direction of the first limiting member 1; the two second stop members 4 are arranged at intervals along the circumferential direction of the second limiting member 2.

[0063] Specifically, as Figure 1 shown, in the embodiment of the present application, by arranging the two first stop members 3 at intervals along the circumferential direction of the first limiting member 1 and arranging the two second stop members 4 at intervals along the circumferential direction of the second limiting member 2, when the second limiting member 2 rotates in cooperation with the first limiting member 1, the stability and reliability of the corresponding stop cooperation between the first stop member 3 and the second stop member 4 can be further improved.

[0064] In addition, in the embodiments of the present application, two of the third stoppers 9 may be arranged at intervals along the circumferential direction of the first limiting member 1, and two of the fourth stoppers 10 may be arranged at intervals along the circumferential direction of the second limiting member 2, so that when the second limiting member 2 is rotationally engaged with the first limiting member 1, the stability and reliability of the corresponding stopper engagement between the third stopper 9 and the fourth stopper 10 can be further improved.

[0065] In one embodiment, the two first stoppers 3 are a first stop arm 31 and a second stop arm 32, and the first stop arm 31 and the second stop arm 32 are symmetrically arranged about the center.

[0066] Specifically, as Figure 1 shown, in the embodiments of the present application, by symmetrically arranging the first stop arm 31 and the second stop arm 32 about the center, the force uniformity of the corresponding stopper engagement between the first stopper 3 and the second stopper 4 is effectively improved, and further, the limiting effect of the limiting assembly is further improved.

[0067] In addition, in the embodiments of the present application, the two second stoppers 4 are a first limiting portion 41 and a second limiting portion 42. The first stop arm 31 is in stopper engagement with the first limiting portion 41, and the second stop arm 32 is in stopper engagement with the second limiting portion 42. The second limiting member 2 is provided with a through hole, and the second stopper 4 can pass through the through hole to expose the first limiting portion 41 and the second limiting portion 42, thereby effectively improving the stability and reliability of the first limiting portion 41 and the second limiting portion 42; alternatively, the second limiting member 2 may also be provided with a blind hole. At this time, the first limiting portion 41 and the second limiting portion 42 can be inserted into the blind hole, and the first limiting portion 41 and the second limiting portion 42 are at least partially exposed from the blind hole to further improve the stability and reliability of the first limiting portion 41 and the second limiting portion 42, and prevent the first limiting portion 41 and the second limiting portion 42 from shrinking into the through hole under the action of an external force.

[0068] In addition, in the embodiments of the present application, the two third stoppers 9 are a third stop arm 91 and a fourth stop arm 92, and the third stop arm 91 and the fourth stop arm 92 are symmetrically arranged about the center; the two fourth stoppers 10 are a third limiting portion 101 and a fourth limiting portion 102, the third stop arm 91 is in stopper engagement with the third limiting portion 101, and the fourth stop arm 92 is in stopper engagement with the fourth limiting portion 102.

[0069] In one embodiment, the first limiting member 1 is sleeved on the second limiting member 2.

[0070] Specifically, as Figure 1As shown, in the embodiment of the present application, by sleeving the first limiting member 1 on the second limiting member 2, when the first limiting member 1 is a fixed block and the second limiting member 2 is a rotating shaft, the rotational matching effect between the second limiting member 2 and the first limiting member 1 can be effectively improved.

[0071] In one embodiment, the first limiting member 1 is threadedly connected to the second limiting member 2.

[0072] Specifically, as Figure 1 shown, in the embodiment of the present application, the first limiting member 1 is provided with a through hole 11, the inner surface of the through hole 11 is provided with internal threads, and the outer surface of the second limiting member 2 is provided with external threads.

[0073] Thus, when the first limiting member 1 is sleeved on the second limiting member 2, the external threads can cooperate with the internal threads so that the second limiting member 2 can perform reciprocating motion along the axial direction of the first limiting member 1, significantly improving the rotational matching effect between the second limiting member 2 and the first limiting member 1.

[0074] Among them, between the first limiting member 1 and the second limiting member 2 in the embodiment of the present application, mechanisms such as a crank-slider, a gear-rack, or a rotating cam can also be used to achieve the reciprocating motion of the second limiting member 2 along the axial direction of the first limiting member 1. Those skilled in the art can select according to actual needs, and the present application does not make specific limitations here.

[0075] In addition, in the embodiment of the present application, different rotation angles of the vehicle steering wheel can be restricted by adjusting the axial length of the external threads; or, different rotation angles of the vehicle steering wheel can be restricted by adjusting the pitch of the external threads; or, different rotation angles of the vehicle steering wheel can be restricted by adjusting the axial dimension between the second stop member 4 and the external threads.

[0076] In one embodiment, the first stop member 3 is generally trapezoidal.

[0077] Specifically, as Figure 1 shown, in the embodiment of the present application, by setting the first stop member 3 as trapezoidal, on the one hand, better stability can be provided for the first stop member 3 to prevent movement or vibration from occurring when the first stop member 3 and the second stop member 4 perform corresponding stop cooperation; on the other hand, since the trapezoidal structure usually has a relatively high bending strength, the first stop member 3 can also be made to withstand a relatively large load, thereby further improving the limiting effect of the limiting assembly.

[0078] In addition, in the embodiment of the present application, the first stopper 3 may also be a cylinder or a C-shaped slot, and those skilled in the art may make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0079] It should be noted that the trapezoid in the embodiment of the present application is not a strict trapezoid, and it can be roughly trapezoidal. For example, a non-strict trapezoid caused by processing errors or wear and tear, that is, a trapezoid whose two parallel sides are not strictly parallel, also belongs to the trapezoid referred to in the embodiment of the present application.

[0080] In one embodiment, the first stopper 3 is substantially in the shape of a right-angled trapezoid.

[0081] Specifically, Figure 1 As shown, in the embodiment of the present application, by setting the first stop member 3 to a right-angled trapezoid, on the one hand, since the straight edges of the right-angled trapezoid can provide a clear and precise positioning boundary, it can ensure that the first stop member 3 cooperates with the corresponding stop of the second stop member 4 at a predetermined position; on the other hand, since the right-angled edge provides additional structural strength, the first stop member 3 can withstand a large force without deformation, thereby further improving the performance of the first stop member 3.

[0082] It should be noted that the right-angled trapezoid in the embodiment of the present application is not a strict right-angled trapezoid, and it can be roughly a right-angled trapezoid. For example, a non-strict right-angled trapezoid caused by processing errors or wear and tear, that is, a right-angled trapezoid in which the two parallel sides are not strictly parallel and the right-angled sides are not strictly right angles, also belongs to the right-angled trapezoid referred to in the embodiment of the present application.

[0083] In one embodiment, the second stopper 4 is substantially cylindrical.

[0084] Specifically, Figure 1 As shown, the embodiment of the present application sets the second stop member 4 to a cylindrical shape. On the one hand, since its circular contour is easy to design and manufacture, and can be more easily installed in the corresponding hole or groove, the installation difficulty and efficiency of the second stop member 4 are effectively reduced; on the other hand, since the cylindrical contact surface can provide uniform load distribution, it can effectively reduce local stress concentration and reduce wear, thereby significantly improving the performance of the second stop member 4.

[0085] In addition, when the second stopper 4 is cylindrical, its circular cross-section can also provide good stability and anti-tilt capability to effectively prevent the second stopper 4 from shifting when subjected to force, thereby further improving the stability and reliability of the second stopper 4.

[0086] It should be noted that the cylindrical shape in the embodiment of the present application is not a strict cylindrical shape, but can be roughly cylindrical. For example, a non-strict cylindrical shape caused by processing errors or wear and tear also falls within the so-called cylindrical shape in the embodiment of the present application.

[0087] In one embodiment, the second limiting member 2 includes a connecting portion 23 , and the connecting portion 23 is suitable for transmission connection with the steering assembly 8 .

[0088] Specifically, if Figure 2 and Figure 3 As shown, in the embodiment of the present application, the second limit member 2 is transmission-connected to the steering assembly 8 via the connecting portion 23, and the second limit member 2 has a certain moving stroke along the steering assembly 8, and further, when the second limit member 2 is rotationally matched with the first limit member 1, the rotation angle of the steering assembly 8 can be effectively limited by corresponding stop cooperation of at least two of the first stop members 3 and at least two of the second stop members 4, thereby effectively realizing the limitation of the rotation angle of the steering wheel of the vehicle.

[0089] According to another embodiment of the present application, a steering system is provided. The steering system includes a housing 6 and the limiting assembly described in the embodiment of the present application. The first limiting member 1 is fixed to the housing 6 .

[0090] Specifically, if Figures 2 to 4 As shown, in the embodiment of the present application, the first limiting member 1 includes a first fixing portion 12, and the shell 6 includes a second fixing portion 61. The first fixing portion 12 can be fixed to the second fixing portion 61 by bolts 7, thereby effectively improving the reliability of the connection between the limiting assembly and the shell 6.

[0091] Among them, Figure 4 As shown, three bolts 7 are preferably used to fix the first fixing portion 12 to the second fixing portion 61 .

[0092] In one embodiment, the limit assembly further includes an end cover 5, which is disposed on the side of the first limit member 1 away from the shell 6 to prevent leakage of lubricating oil stored in the limit assembly and affect the rotational matching efficiency of the second limit member 2 and the first limit member 1.

[0093] According to another embodiment of the present application, a vehicle is provided. The vehicle includes the steering system described in the embodiment of the present application.

[0094] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0095] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for the purpose of illustration and not for the purpose of limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A limit assembly, characterized in that: include: A first limiting member (1), wherein a plurality of first stop members (3) are provided at one axial end of the first limiting member (1); A second limiting member (2), the second limiting member (2) being rotatably matched with the first limiting member (1), the second limiting member (2) being provided with a plurality of second stop members (4); At least two of the plurality of first stop members (3) can cooperate with at least two corresponding stop members of the plurality of second stop members (4) to limit the movement stroke of the first limiting member (1) or the second limiting member (2).

2. The limit assembly according to claim 1, characterized in that: A plurality of third stoppers (9) are provided at the other axial end of the first limit member (1), and a plurality of fourth stoppers (10) are provided on the second limit member (2), and at least two of the plurality of third stoppers (9) cooperate with at least two corresponding stoppers of the plurality of fourth stoppers (10).

3. The limiting assembly according to claim 2, characterized in that: The first limiting member (1) is sleeved on the second limiting member (2) to separate the first limiting member (1) into a first mounting portion (21) and a second mounting portion (22); the first mounting portion (21) is provided with a plurality of the second stop members (4); and the second mounting portion (22) is provided with a plurality of the fourth stop members (10).

4. The limit assembly according to claim 1, characterized in that: There are two first stoppers (3) and two second stoppers (4); the two first stoppers (3) and the two second stoppers (4) are in one-to-one stop cooperation.

5. The limiting assembly according to claim 4, characterized in that: The two first stoppers (3) are arranged at intervals along the circumference of the first limiting member (1); The two second stoppers (4) are arranged at intervals along the circumference of the second limiting member (2).

6. The limiting assembly according to claim 4, characterized in that: The two first stoppers (3) are a first stop arm (31) and a second stop arm (32), and the first stop arm (31) and the second stop arm (32) are centrally symmetrically arranged.

7. The limiting assembly according to claim 1, characterized in that: The first limiting member (1) is sleeved on the second limiting member (2).

8. The limiting assembly according to claim 7, characterized in that: The first limiting member (1) is threadably connected to the second limiting member (2).

9. The limiting assembly according to claim 1, characterized in that: The first stopper (3) is substantially trapezoidal in shape.

10. The limiting assembly according to claim 9, characterized in that: The first stopper (3) is substantially in the shape of a right-angled trapezoid.

11. The limiter assembly according to claim 1, characterized in that: The second stopper (4) is substantially cylindrical.

12. The limiting assembly according to claim 1, characterized in that: The second limiting member (2) comprises a connecting portion (23), and the connecting portion (23) is suitable for being transmission-connected to the steering assembly (8).

13. A steering system, characterized in that: It comprises a shell (6) and a limiting assembly according to any one of claims 1 to 12, wherein the first limiting member (1) is fixed to the shell (6).

14. A vehicle, characterized in that: Comprising a steering system as claimed in claim 13.

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