Steering gear assembly of vehicle and vehicle

Abstract

The utility model discloses a steering gear assembly of a vehicle and the vehicle, and relates to the field of vehicles, the steering gear assembly of the vehicle comprises a shell, the shell defines a mounting space, and the inner wall of the shell is provided with a first protrusion; the limiting structure comprises a flexible part, and the flexible part is suitable for abutting against the side wall of the first protrusion. The inner ball head pull rod assembly can be driven by the rack to move in the axis direction of the rack and make contact with the limiting structure, and the fastener is arranged in the installation space and used for limiting the limiting structure. Therefore, by arranging the limiting structure, the inner ball head pull rod assembly can be effectively limited, so that the rack can be effectively limited, and the impact force between the limiting structure and the first protrusion can be reduced by enabling the flexible part of the limiting structure to be suitable for being connected with the side wall of the first protrusion in an abutting mode; in addition, by arranging a fastener, the probability that the limiting structure falls off can be reduced, and the use reliability of the steering gear assembly can be improved.

Description

Technical Field

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

[0002] In the related art, the structural design of the steering gear assembly is unreasonable, and the rack of the steering gear assembly cannot be effectively limited. In addition, the limiting member of the steering gear assembly is in hard contact with other components of the steering gear assembly when it plays a limiting role, which makes the limiting member and / or other components of the steering gear assembly easy to be damaged. In addition, the limiting member is easy to fall off, and the falling off of the limiting member will cause abnormal noise or even jamming of the steering gear assembly, thereby resulting in low reliability of the steering gear assembly. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a steering gear assembly for a vehicle, which can reduce the probability of the limit structure falling off and has high reliability in use.

[0004] The utility model further provides a vehicle.

[0005] According to the utility model, the steering gear assembly of the vehicle includes: a shell, the shell defines an installation space, and the inner wall of the shell has a first protrusion protruding toward the installation space; a limiting structure, the limiting structure includes a flexible member, and the flexible member is suitable for abutting against the side wall of the first protrusion; a rack and an inner ball head tie rod assembly, the rack is arranged in the installation space and penetrates the limiting structure, the inner ball head tie rod assembly is connected to the rack, and the inner ball head tie rod assembly can move along the axial direction of the rack and contact the limiting structure under the drive of the rack; a fastener, the fastener is arranged in the installation space and is located on the side of the limiting structure away from the first protrusion, and the fastener is used to limit the limiting structure.

[0006] According to the steering gear assembly of the vehicle of the utility model, by providing a limiting structure, the inner ball head tie rod assembly can be effectively limited, thereby effectively limiting the rack, and by making the flexible part of the limiting structure suitable for abutting against the side wall of the first protrusion, the impact force between the limiting structure and the first protrusion can be reduced, thereby reducing the probability of damage to the limiting structure and the shell, and in addition, by providing fasteners, the probability of the limiting structure falling off can be reduced, which is beneficial to improving the reliability of the steering gear assembly.

[0007] In some examples of the present invention, the inner wall of the shell has a second protrusion protruding toward the installation space, the second protrusion is used to support the limiting structure, and the fastener abuts against the side wall of the second protrusion away from the first protrusion.

[0008] In some examples of the present invention, the inner wall of the housing has an internal thread, and the fastener has an external thread matching the internal thread.

[0009] In some examples of the present invention, the limiting structure also includes: a support member, which is connected to the flexible member, and when the steering wheel of the steering gear assembly is returned to the center position, the spacing between the flexible member and the side wall of the first protrusion is smaller than the spacing between the support member and the side wall of the first protrusion.

[0010] In some examples of the present invention, the interval between the flexible member and the inner ball head tie rod assembly is greater than the interval between the support member and the inner ball head tie rod assembly.

[0011] In some examples of the present invention, the support member has a matching portion, the matching portion is located between the flexible member and the inner ball head and tie rod assembly, and the inner ball head and tie rod assembly can contact the matching portion.

[0012] In some examples of the present invention, the flexible member is sleeved on at least a portion of the outer side of the support member.

[0013] In some examples of the present invention, the flexible member has at least one recessed portion, and the supporting member has at least one raised portion, and the raised portion is located in the corresponding recessed portion.

[0014] The vehicle according to the utility model comprises the above-mentioned vehicle steering gear assembly.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a cross-sectional view of the steering gear assembly according to an embodiment of the utility model (when the steering wheel of the steering gear assembly is returned to the center);

[0018] Figure 2 It is a cross-sectional view of the steering gear assembly according to an embodiment of the utility model (when the steering wheel of the steering gear assembly is rotated to a maximum angle in a certain direction);

[0019] Figure 3 is a schematic diagram of a limiting structure according to an embodiment of the utility model;

[0020] Figure 4It is a cross-sectional view of the limiting structure according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] Steering gear assembly 100;

[0023] Housing 1; first protrusion 11; second protrusion 12; installation space 13; internal thread 14;

[0024] Limiting structure 2; flexible member 21; recessed portion 211; supporting member 22; matching portion 221; raised portion 222;

[0025] Inner ball head tie rod assembly 3; rack 4; fastener 5; external thread 51. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] Reference below Figure 1-Figure 4 A steering gear assembly 100 of a vehicle according to an embodiment of the present invention is described.

[0028] like Figure 1-Figure 4 As shown, the steering gear assembly 100 of a vehicle according to an embodiment of the utility model includes: a housing 1, a limiting structure 2, a rack 4 and an inner ball head tie rod assembly 3.

[0029] The shell 1 defines an installation space 13, and the inner wall of the shell 1 has a first protrusion 11 protruding toward the installation space 13; the limiting structure 2 includes a flexible member 21, and the flexible member 21 is suitable for abutting against the side wall of the first protrusion 11; the rack 4 is arranged in the installation space 13 and penetrates the limiting structure 2, and the inner ball head pull rod assembly 3 is connected to the rack 4. The inner ball head pull rod assembly 3 can move along the axial direction of the rack 4 and contact the limiting structure 2 under the drive of the rack 4.

[0030] Among them, the shell 1 defines an installation space 13, and the inner wall of the shell 1 has a first protrusion 11 protruding toward the installation space 13, that is, the shell 1 and the first protrusion 11 are integrally formed, that is, the shell 1 and the first protrusion 11 are an integrally formed part, and the integrally formed part has high structural strength. Such a setting can reduce the probability of separation of the shell 1 and the first protrusion 11.

[0031] The limiting structure 2 is arranged in the installation space 13, and the limiting structure 2 is arranged along the axial direction of the rack 4 (i.e. Figure 1The limiting structure 2 includes a flexible member 21, and the material of the flexible member 21 may be, but is not limited to, butyl rubber, vulcanized rubber, fluororubber, etc. As some embodiments of the present application, the material of the flexible member 21 is vulcanized rubber. As some embodiments of the present application, the material of the flexible member 21 is resin.

[0032] The flexible member 21 is suitable for abutting against the side wall of the first protrusion 11 of the housing 1. As some embodiments of the present application, when the steering wheel of the steering gear assembly 100 is returned to the center, the flexible member 21 and the side wall of the first protrusion 11 of the housing 1 may have a gap, and when the steering wheel is turned, the flexible member 21 abuts against the side wall of the first protrusion 11 of the housing 1, or, as some embodiments of the present application, when the steering wheel of the steering gear assembly 100 is returned to the center, the flexible member 21 abuts against the side wall of the first protrusion 11 of the housing 1.

[0033] The limiting structure 2 is arranged in the installation space 13, and the limiting structure 2 has a through hole (in other words, the limiting structure 2 can be constructed as a circular ring structure), and the rack 4 is arranged in the installation space 13 and penetrates the limiting structure 2, that is, the rack 4 is arranged in the installation space 13, and the rack 4 penetrates the through hole of the limiting structure 2. The inner ball head tie rod assembly 3 is connected to the rack 4, and the connection method between the inner ball head tie rod assembly 3 and the rack 4 can be but not limited to screw connection, welding and the like. As some embodiments of the present application, the inner ball head tie rod assembly 3 and the rack 4 can be connected by screw connection. The inner ball head tie rod assembly 3 is connected to the steering arm of the steering shaft of the vehicle. The inner ball head tie rod assembly 3 can be driven by the rack 4 along the axial direction of the rack 4 (that is, Figure 1 The inner ball rod assembly 3 can move in the X direction as shown, and the inner ball rod assembly 3 can abut against the limiting structure 2, and the limiting structure 2 can play a limiting role to limit the movement of the inner ball rod assembly 3. In other words, the limiting structure 2 can play a limiting role to limit the movement of the rack 4, when the inner ball rod assembly 3 can no longer move in a certain direction, that is, the steering wheel is rotated to the maximum angle.

[0034] Specifically, when the driver turns the steering wheel, the rack 4 can move along the axial direction of the rack 4 (i.e. Figure 1 The inner ball head tie rod assembly 3 moves in the X direction as shown to rotate the wheels of the vehicle.

[0035] As some embodiments of the present application, along the axial direction of the rack 4 (ie Figure 1 In the X direction shown in the figure), inner ball head tie rod assemblies 3 are arranged on both sides of the rack 4, that is, there are two inner ball head tie rod assemblies 3, and the two inner ball head tie rod assemblies 3 are respectively connected to the steering arms of the corresponding steering shafts, and the number of the limiting structures 2 is two and corresponds to the two inner ball head tie rod assemblies 3 one by one.

[0036] It should be noted that if Figure 1 As shown, when the steering wheel of the steering gear assembly 100 is returned to the center, the inner ball head tie rod assembly 3 does not contact the limiting structure 2. When the driver turns the steering wheel, the rack 4 moves along the axis direction of the rack 4 (i.e. Figure 1 When the rack 4 moves, the inner ball tie rod assembly 3 is driven to move. When the inner ball tie rod assembly 3 contacts the limiting structure 2 and the flexible member 21 is compressed to a preset degree, the rack 4 cannot continue to move along the current moving direction, and the steering wheel cannot continue to rotate around the current rotation direction. At this time, the steering wheel rotates to the maximum angle. Therefore, by setting the limiting structure 2, the inner ball tie rod assembly 3 can be effectively limited.

[0037] Furthermore, since the flexible member 21 is adapted to abut against the side wall of the first protrusion 11 of the housing 1, when the inner ball head pull rod assembly 3 contacts the limiting structure 2, the flexible member 21 can be elastically deformed to absorb the rack 4 along the axial direction of the rack 4 (i.e. Figure 1 The impact force in the X direction as shown, that is, the flexible member 21 can play a buffering and energy-absorbing role to reduce the impact force between the limiting structure 2 and the first protrusion 11, and can reduce the vibration of other components, thereby reducing the probability of damage to the limiting structure 2 and the housing 1, and can also reduce the probability of damage to other components, which is beneficial to extending the service life of the steering gear assembly 100.

[0038] Therefore, by setting the limiting structure 2, the inner ball head tie rod assembly 3 can be effectively limited, so that the rack 4 can be effectively limited, and by making the flexible part 21 of the limiting structure 2 suitable for abutting against the side wall of the first protrusion 11, the impact force between the limiting structure 2 and the first protrusion 11 can be reduced, thereby reducing the probability of damage to the limiting structure 2 and the shell 1, which is beneficial to improving the reliability of the steering gear assembly 100.

[0039] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the steering gear assembly 100 of the vehicle further includes: a fastener 5 , which is disposed in the installation space 13 and located on a side of the limiting structure 2 away from the first protrusion 11 , and is used to limit the limiting structure 2 .

[0040] The steering gear assembly 100 of the vehicle further includes a fastener 5, which is disposed in the installation space 13 and is fixedly connected to the housing 1. The fastener 5 and the housing 1 may be connected in a manner that is not limited to screw connection, welding, etc. As some embodiments of the present application, the fastener 5 and the housing 1 are connected in a screw connection. In addition, the rack 4 is arranged along the axial direction (i.e., Figure 1The fastener 5 is arranged on the side of the limiting structure 2 away from the first protrusion 11, and the fastener 5 is used to limit the limiting structure 2. That is, the limiting structure 2 is arranged between the fastener 5 and the first protrusion 11, and the fastener 5 can be arranged along the axial direction of the rack 4 (i.e. Figure 1 The position of the limiting structure 2 is limited in the X direction as shown to reduce the probability of the limiting structure 2 falling off.

[0041] By setting the fastener 5 and setting the fastener 5 on the side of the limiting structure 2 away from the first protrusion 11, the limiting structure 2 can be limited, and the probability of the limiting structure 2 falling off can be reduced, thereby reducing the probability of abnormal noise or jamming of the steering gear assembly 100 due to the limiting structure 2 falling off.

[0042] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the inner wall of the housing 1 has a second protrusion 12 protruding toward the installation space 13 , the second protrusion 12 is used to support the limiting structure 2 , and the fastener 5 abuts against the side wall of the second protrusion 12 away from the first protrusion 11 .

[0043] Among them, the inner wall of the shell 1 has a second protrusion 12 protruding toward the installation space 13, that is, the shell 1 and the second protrusion 12 are integrally formed, that is, the shell 1 and the second protrusion 12 are an integrally formed part, and the integrally formed part has high structural strength. This arrangement can reduce the probability of separation of the shell 1 and the second protrusion 12.

[0044] The second protrusion 12 can be constructed as a circular protrusion, and the second protrusion 12 is used to carry the limiting structure 2, that is, the outer wall surface of the limiting structure 2 can contact the inner wall surface of the second protrusion 12, so that the second protrusion 12 carries the limiting structure 2. The fastener 5 abuts against the side wall of the second protrusion 12 away from the first protrusion 11, that is, along the axial direction of the rack 4 (i.e. Figure 1 The fastener 5 abuts against the side wall of the second protrusion 12 away from the first protrusion 11 (in the X direction shown).

[0045] By providing the inner wall of the housing 1 with the second protrusion 12 protruding toward the installation space 13, the second protrusion 12 can bear the limiting structure 2, thereby facilitating the installation of the limiting structure 2. In addition, by making the fastener 5 abut against the side wall of the second protrusion 12 away from the first protrusion 11, the rack 4 can be fixed along the axial direction (i.e. Figure 1 The limiting fastener 5 is provided in the X direction as shown in the figure, so as to prompt that the fastener 5 is installed in place, which is beneficial to reducing the assembly difficulty of the steering gear assembly 100 and improving the assembly efficiency of the steering gear assembly 100.

[0046] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the inner wall of the housing 1 has an internal thread 14 , and the fastener 5 has an external thread 51 that matches the internal thread 14 .

[0047] Among them, the fastener 5 is connected to the shell 1 through threads, the inner wall of the shell 1 has an internal thread 14, and the fastener 5 has an external thread 51 that matches the internal thread 14. The internal thread 14 on the inner wall of the shell 1 and the external thread 51 of the fastener 5 cooperate with each other, so that the fastener 5 is connected to the shell 1 through threads.

[0048] Such a configuration enables the fastener 5 to be tightly connected to the housing 1, reduces the probability of the fastener 5 being separated from the housing 1, and is beneficial to improving the reliability of the steering gear assembly 100. Moreover, such a configuration facilitates the installation of the fastener 5, which is beneficial to further reduce the difficulty of assembling the steering gear assembly 100.

[0049] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the limiting structure 2 also includes: a support member 22, which is connected to the flexible member 21. When the steering wheel of the steering gear assembly 100 is returned to the center, the spacing between the flexible member 21 and the side wall of the first protrusion 11 is smaller than the spacing between the support member 22 and the side wall of the first protrusion 11.

[0050] The limiting structure 2 further includes a support member 22, which is connected to the flexible member 21. The connection between the support member 22 and the flexible member 21 may be, but is not limited to, a clamping connection, a bolt connection, etc. In some embodiments of the present application, the support member 22 and the flexible member 21 are connected by clamping.

[0051] When the steering wheel of the steering gear assembly 100 is returned to the center, the spacing between the flexible member 21 and the side wall of the first protrusion 11 is smaller than the spacing between the support member 22 and the side wall of the first protrusion 11. In other words, compared with the support member 22, the spacing between the flexible member 21 and the side wall of the first protrusion 11 is smaller.

[0052] As some embodiments of the present application, when the steering wheel of the steering gear assembly 100 is returned to the center, there may be a gap between the flexible member 21 and the side wall of the first protrusion 11 of the shell 1, and when the steering wheel is turned, the flexible member 21 abuts against the side wall of the first protrusion 11 of the shell 1, or, as some embodiments of the present application, when the steering wheel of the steering gear assembly 100 is returned to the center, the flexible member 21 abuts against the side wall of the first protrusion 11 of the shell 1.

[0053] It is understandable that as the steering wheel rotates, the flexible member 21 is gradually compressed, and the support member 22 gradually approaches the side wall of the first protrusion 11. When the support member 22 contacts the side wall of the first protrusion 11, the steering wheel cannot continue to rotate (i.e., the steering wheel rotates to the maximum angle).

[0054] By making the distance between the flexible member 21 and the side wall of the first protrusion 11 smaller than the distance between the support member 22 and the side wall of the first protrusion 11, the structural form of the limiting structure 2 can be made reasonable. When the inner ball head pull rod assembly 3 contacts the limiting structure 2, the flexible member 21 can reliably undergo elastic deformation to absorb impact force, thereby helping to reduce the probability of damage to the limiting structure 2, the shell 1 and other components.

[0055] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the distance between the flexible member 21 and the inner ball head tie rod assembly 3 is greater than the distance between the supporting member 22 and the inner ball head tie rod assembly 3 .

[0056] Among them, the interval between the flexible member 21 and the inner ball head tie rod assembly 3 is greater than the interval between the support member 22 and the inner ball head tie rod assembly 3. It can be understood that compared with the flexible member 21, the interval between the support member 22 and the inner ball head tie rod assembly 3 is smaller.

[0057] By making the distance between the flexible member 21 and the inner ball head tie rod assembly 3 larger than the distance between the support member 22 and the inner ball head tie rod assembly 3, the inner ball head tie rod assembly 3 can be brought into contact with the support member 22 of the limiting structure 2, so that the flexible member 21 can be squeezed between the side wall of the first protrusion 11 and the support member 22, which is conducive to fully exerting the buffering and energy absorption effect of the limiting structure 2.

[0058] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the support member 22 has a matching portion 221 , and the matching portion 221 is located between the flexible member 21 and the inner ball head tie rod assembly 3 , and the inner ball head tie rod assembly 3 can contact the matching portion 221 .

[0059] The support member 22 has a matching portion 221, which is arranged along the axis direction of the rack 4 (i.e. Figure 1 The mating portion 221 is disposed between the flexible member 21 and the inner ball rod assembly 3, and the inner ball rod assembly 3 can contact the mating portion 221 and push the support member 22 toward the side wall of the first protrusion 11, so that the support member 22 abuts against the side wall of the first protrusion 11.

[0060] By providing the support member 22 with a mating portion 221 between the flexible member 21 and the inner ball rod assembly 3, the contact area between the inner ball rod assembly 3 and the support member 22 can be increased, so that the force on the support member 22 can be uniform, which is beneficial to ensuring the accuracy of the moving direction of the limiting structure 2.

[0061] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the flexible member 21 is sleeved on at least a portion of the outer side of the support member 22 .

[0062] The flexible member 21 is sleeved on at least part of the outside of the support member 22 , that is, the flexible member 21 can be sleeved on the outside of a part of the structure of the support member 22 , or the flexible member 21 can be sleeved on the outside of the entire structure of the support member 22 .

[0063] As some embodiments of the present application, the flexible member 21 can be sleeved on the outside of a partial structure of the support member 22 so that the distance between the flexible member 21 and the side wall of the first protrusion 11 is smaller than the distance between the support member 22 and the side wall of the first protrusion 11 .

[0064] By sleeve-arranging the flexible member 21 on at least a portion of the outer side of the support member 22 , the structure of the limiting structure 2 can be made reasonable, thereby facilitating the assembly of the limiting structure 2 .

[0065] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the flexible member 21 has at least one recessed portion 211 , and the supporting member 22 has at least one protruding portion 222 , and the protruding portion 222 is located in the corresponding recessed portion 211 .

[0066] Among them, the flexible member 21 has at least one recessed portion 211, that is, the flexible member 21 can have one recessed portion 211, or the flexible member 21 can have multiple recessed portions 211, and the support member 22 has at least one protruding portion 222, that is, the support member 22 can have one protruding portion 222, or the support member 22 can have multiple protruding portions 222, the protruding portions 222 and the recessed portions 211 are arranged correspondingly, and the protruding portions 222 are located in the corresponding recessed portions 211, and the protruding portions 222 and the recessed portions 211 can cooperate with each other so that the flexible member 21 is clamped on the outer side of the support member 22.

[0067] By making the flexible member 21 have at least one recessed portion 211 and the support member 22 have at least one raised portion 222, the flexible member 21 and the support member 22 can cooperate with each other through the raised portion 222 and the recessed portion 211, so that the flexible member 21 is clamped on the outer side of the support member 22, thereby facilitating the assembly of the limiting structure 2 and making the connection between the flexible member 21 and the support member 22 firm.

[0068] It should be noted that when the steering wheel of the steering gear assembly 100 is returned to the center position, the inner ball head tie rod assembly 3 does not contact the limiting structure 2 (such as Figure 1 As shown in FIG. 1 , as the driver turns the steering wheel in a certain direction, the rack 4 can move along the axial direction of the rack 4 (i.e. Figure 1The inner ball head tie rod assembly 3 moves in a certain direction (in the X direction shown in the figure) and drives the inner ball head tie rod assembly 3 to move. After the inner ball head tie rod assembly 3 moves a certain distance, it will contact the support member 22 of the limiting structure 2. Then, as the inner ball head tie rod assembly 3 continues to move in this direction, the support member 22 can move toward the side wall of the first protrusion 11 under the pushing action of the inner ball head tie rod assembly 3 and squeeze the flexible member 21. The flexible member 21 can play a buffering and energy absorbing role. As the flexible member 21 is continuously squeezed, the support member 22 can abut against the side wall of the first protrusion 11. At this time, the steering wheel is turned to the maximum angle, and the rack 4 moves to the maximum position (as shown in the figure). Figure 2 shown).

[0069] According to the vehicle according to the embodiment of the utility model, including the steering gear assembly 100 of the vehicle of the above-mentioned embodiment, by setting the limiting structure 2, the inner ball head tie rod assembly 3 can be effectively limited, so that the rack 4 can be effectively limited, and by making the flexible part 21 of the limiting structure 2 suitable for abutting against the side wall of the first protrusion 11, the impact force between the limiting structure 2 and the first protrusion 11 can be reduced, thereby reducing the probability of damage to the limiting structure 2 and the shell 1. In addition, by setting the fastener 5, the probability of the limiting structure 2 falling off can be reduced, which is beneficial to improving the reliability of the steering gear assembly 100.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0071] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0072] In the description of the present invention, "plurality" means two or more.

[0073] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0074] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0076] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steering gear assembly (100) for a vehicle, characterized in that: include: A housing (1), the housing (1) defining an installation space (13), and an inner wall of the housing (1) having a first protrusion (11) protruding toward the installation space (13); A limiting structure (2), the limiting structure (2) comprising a flexible member (21), the flexible member (21) being adapted to abut against a side wall of the first protrusion (11); A rack (4) and an inner ball head pull rod assembly (3), wherein the rack (4) is arranged in the installation space (13) and penetrates the limiting structure (2), the inner ball head pull rod assembly (3) is connected to the rack (4), and the inner ball head pull rod assembly (3) can move along the axial direction of the rack (4) and contact the limiting structure (2) under the drive of the rack (4); A fastener (5), the fastener (5) being arranged in the installation space (13) and located on a side of the limiting structure (2) away from the first protrusion (11), the fastener (5) being used to limit the limiting structure (2).

2. The vehicle steering gear assembly (100) according to claim 1, characterized in that: The inner wall of the shell (1) has a second protrusion (12) protruding toward the installation space (13), the second protrusion (12) is used to support the limiting structure (2), and the fastener (5) abuts against the side wall of the second protrusion (12) away from the first protrusion (11).

3. The vehicle steering gear assembly (100) according to claim 1, characterized in that: The inner wall of the housing (1) has an internal thread (14), and the fastener (5) has an external thread (51) that matches the internal thread (14).

4. The vehicle steering gear assembly (100) according to claim 1, characterized in that: The limiting structure (2) further comprises: a support member (22), wherein the support member (22) is connected to the flexible member (21), and when the steering wheel of the steering gear assembly (100) is returned to the center position, the spacing between the flexible member (21) and the side wall of the first protrusion (11) is smaller than the spacing between the support member (22) and the side wall of the first protrusion (11).

5. The vehicle steering gear assembly (100) according to claim 4, characterized in that: The spacing between the flexible member (21) and the inner ball head pull rod assembly (3) is greater than the spacing between the supporting member (22) and the inner ball head pull rod assembly (3).

6. The vehicle steering gear assembly (100) according to claim 4, characterized in that: The support member (22) has a matching portion (221), and the matching portion (221) is located between the flexible member (21) and the inner ball head pull rod assembly (3), and the inner ball head pull rod assembly (3) can be in contact with the matching portion (221).

7. The vehicle steering gear assembly (100) according to claim 4, characterized in that: The flexible member (21) is sleeved on at least part of the outer side of the support member (22).

8. The vehicle steering gear assembly (100) according to claim 7, characterized in that: The flexible member (21) has at least one recessed portion (211), and the supporting member (22) has at least one raised portion (222), wherein the raised portion (222) is located in the corresponding recessed portion (211).

9. A vehicle, characterized in that: A steering gear assembly (100) for a vehicle comprising any one of claims 1-8.

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