CN221188735U - Steering limiting mechanism and vehicle - Google Patents

Abstract

The utility model discloses a steering limiting mechanism and a vehicle, wherein the steering limiting mechanism comprises: a housing; the input shaft is connected with the steering wheel, and one end of the input shaft extends into the shell; the screw rod is rotatably arranged in the shell and is connected with one end of the input shaft; the limiting slide block is sleeved outside the screw and in threaded connection with the screw, and is suitable for being pressed against the inner wall of the shell when the input shaft drives the screw to rotate to a maximum angle. According to the steering limiting mechanism, when the steering wheel continuously rotates until the limiting slide block is limited and is pressed against the inner wall of the shell, the steering wheel can be rotated and beaten dead, namely, the rotating angle of the steering wheel can be limited by utilizing the limiting function of the limiting slide block, the fixed angle rotation of the steering wheel is realized, the occupied space of the structure is small, the assembly process is simple, the cost of parts is low, and the steering limiting mechanism is easy to popularize.

Description

Steering limiting mechanism and vehicle

Technical Field

The utility model relates to the technical field of vehicle manufacturing, in particular to a steering limiting mechanism and a vehicle with the same.

Background

The traditional steering system always has collision noise at the limit position, so that comfort is difficult to consider, and the steering wheel is dead, and the rack and the limiting surface can be impacted violently, so that the larger noise can be heard even though the rubber pad is added. In the related art, the steering wheel is provided with a limiting mechanism for limiting the steering wheel, such as a wedge mechanism, a planet wheel, a limiting groove and the like, but the gear train mechanism has higher requirements on the processing technology and the assembly technology, the cost is high, the wedge structure and the limiting groove are more troublesome to install, and the improvement space exists.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the steering limiting mechanism which can realize fixed-angle rotation of the steering wheel, and has the advantages of small structural occupation space, simple assembly process and low cost of parts.

According to an embodiment of the present utility model, a steering limit mechanism includes: a housing; the input shaft is connected with the steering wheel, and one end of the input shaft extends into the shell; the screw rod is rotatably arranged in the shell and is connected with one end of the input shaft; the limiting slide block is sleeved outside the screw and in threaded connection with the screw, and is suitable for being pressed against the inner wall of the shell when the input shaft drives the screw to rotate to a maximum angle.

According to the steering limiting mechanism provided by the embodiment of the utility model, the steering wheel is connected with the input shaft and the screw rod, and the limiting slide block is in threaded fit with the screw rod, so that when the steering wheel continuously rotates until the limiting slide block is in limiting abutting contact with the inner wall of the shell, the steering wheel can be rotated and is dead, namely, the rotating angle of the steering wheel can be limited by utilizing the limiting effect of the slide block, the fixed-angle rotation of the steering wheel is realized, the occupied space of the structure is small, the assembly process is simple, the cost of parts is low, and the steering limiting mechanism is easy to popularize.

According to the steering limiting mechanism of some embodiments of the present utility model, a first accommodating cavity and a second accommodating cavity are formed in the housing, an installation separation part is arranged between the first accommodating cavity and the second accommodating cavity, the screw rod and the limiting sliding block are both located in the first accommodating cavity, the installation separation part is provided with a communication hole, and the input shaft extends into the second accommodating cavity and is rotatably supported at the communication hole through a bearing piece to be connected with the screw rod.

According to the steering limiting mechanism of some embodiments of the present utility model, a first limiting surface is formed on one side of the installation separation portion facing the first accommodating cavity, a second limiting surface which is opposite to the first limiting surface along the axial direction of the screw rod is formed in the housing, and the limiting slider is adapted to be pressed against the first limiting surface when the input shaft rotates to a maximum angle along a first direction and is adapted to be pressed against the second limiting surface when the input shaft rotates to a maximum angle along a second direction.

According to some embodiments of the utility model, the housing includes an end cap detachably mounted to an end of the first housing chamber remote from the second housing chamber, and the second limiting surface is formed on the end cap.

According to some embodiments of the utility model, the end cover is screwed with the inner wall of the first accommodating cavity, and the distance between the first limiting surface and the second limiting surface is adjustable.

According to the steering limiting mechanism of some embodiments of the present utility model, a first rod body is disposed at an end of the input shaft, an axial open shaft hole is formed in the first rod body, a second rod body is disposed at an end of the screw, the second rod body extends into the shaft hole to be in circumferential transmission fit with the first rod body, and the first rod body is supported by the bearing member in a penetrating manner.

According to the steering limiting mechanism of some embodiments of the present utility model, the steering limiting mechanism further includes a plug screw, a first stop surface is further formed at an end portion of the input shaft, the plug screw is sleeved outside the first rod body, and the inner ring of the bearing member is axially limited and pressed between the first stop surface and the plug screw.

According to the steering limiting mechanism of some embodiments of the present utility model, an avoidance groove is further formed at one end of the limiting slider facing the installation separation portion, and the limiting slider is adapted to avoid the avoidance groove from the screw plug when moving towards the installation separation portion.

According to the steering limiting mechanism of some embodiments of the present utility model, the steering limiting mechanism further comprises a collar, a second stop surface and a limiting clamping groove are formed on the inner peripheral wall of the installation separation part, the collar is clamped at the limiting clamping groove, and the outer ring of the bearing part is axially limited and pressed between the second stop surface and the collar.

The utility model further provides a vehicle.

According to the vehicle of the embodiment of the utility model, the steering limiting mechanism of any one of the embodiments described above is provided.

The advantages of the vehicle and the steering limiting mechanism are the same as those of the prior art, and are not described in detail herein.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a steering limit mechanism according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view at A-A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 2;

FIG. 4 is an end schematic view of a steering limit mechanism according to an embodiment of the utility model;

fig. 5 is a schematic structural view of a limit slider according to an embodiment of the present utility model.

Reference numerals:

The steering limit mechanism 100 is configured to move,

The shell 1, the first accommodating cavity 11, the second accommodating cavity 12, the mounting partition 13, the second stop surface 131, the first limit surface 14, the second limit surface 15, the end cover 16,

The input shaft 2, the first shaft body 21, the first stop surface 22,

The screw 3, the second rod body 31,

The limit slide block 4, the avoiding groove 41, the threaded hole 42,

A bearing member 5, an inner ring 51 of the bearing member, an outer ring 52 of the bearing member,

A plug screw 6 and a collar 7.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

If not specified, the front-rear direction in the application is the longitudinal direction of the vehicle, namely the X direction; the left-right direction is the transverse direction of the vehicle, namely the Y direction; the up-down direction is the vertical direction of the vehicle, i.e., the Z direction.

The following describes a steering limit mechanism 100 according to an embodiment of the present utility model with reference to fig. 1 to 5, and the steering limit mechanism 100 can realize a fixed angle rotation of a steering wheel, and has a small occupied space, a simple assembly process, and low cost of parts.

As shown in fig. 1 to 5, the steering limit mechanism 100 according to the present utility model includes a housing 1, an input shaft 2, a screw 3, and a limit slider 4.

The input shaft 2 is connected to a steering wheel such that the steering wheel can rotate the input shaft 2. That is, when the user turns the steering wheel, the steering wheel may rotate the input shaft 2 connected to the steering wheel together, i.e., when the steering wheel turns clockwise, the input shaft 2 also turns clockwise, and when the steering wheel turns counterclockwise, the input shaft 2 also turns counterclockwise. The end of the input shaft 2 may be connected directly to the steering wheel, or may be connected by other connectors, such as by spline connection of the input shaft 2 to the steering wheel, or alternatively by other means, as is practical in particular designs.

The screw 3 and the limit slider 4 are both installed in the casing 1, and meanwhile, one end of the input shaft 2 can also extend into the casing 1, namely, a hollow cavity is formed in the casing 1 and can be used for installing the screw 3, the limit slider 4 and the end of the input shaft 2, so that the casing 1 can play a certain protection role on the screw 3, the limit slider 4 and the matching position with the input shaft 2.

The screw 3 is rotatably installed in casing 1, and in the one end of input shaft 2 stretched into casing 1, and screw 3 links to each other with the one end of input shaft 2, and wherein, the one end of input shaft 2 can stretch into casing 1 along the axial of screw 3 and be connected along the axial with screw 3, simultaneously, input shaft 2 and screw 3 are rotatable relative to casing 1, and input shaft 2 and screw 3 are along axial transmission cooperation. Therefore, one end of the input shaft 2 positioned in the shell 1 is connected with the screw 3, and one end positioned outside the shell 1 can be connected with a steering wheel, so that the steering wheel drives the screw 3 to rotate through the input shaft 2.

Further, the limit sliding block 4 is sleeved outside the screw rod 3 and is in threaded connection with the screw rod 3, and the limit sliding block 4 is suitable for being pressed against the inner wall of the shell 1 when the input shaft 2 drives the screw rod 3 to rotate to the maximum angle. That is, the screw 3 is rotatable and relatively fixed in the housing 1 along the axial direction, and by providing the limiting slide 4 in threaded connection with the screw 3, that is, the limiting slide 4 is provided with a threaded hole 42, the screw 3 is threaded through the threaded hole 42 to be in threaded connection with the limiting slide 4, so that when the screw 3 rotates, the limiting slide 4 can move relatively along the axial direction of the screw 3, and when the limiting slide 4 moves to the maximum position axially, the limiting slide 4 is pressed against the inner wall of the housing 1, and further the displacement of the limiting slide 4 is limited by the housing 1.

It can be understood that when the steering wheel rotates, the steering wheel can drive the input shaft 2 to rotate and further drive the screw rod 3 to rotate, and the limit sliding block 4 can be driven to axially move along the screw rod 3 in the rotation process of the screw rod 3. When the user drives the vehicle, the input shaft 2 and the screw 3 rotate synchronously with the steering wheel when the steering wheel continuously rotates leftwards or rightwards, and the limiting slide block 4 gradually presses against the inner wall of the shell 1, so that the limiting slide block 4 moves to the maximum travel distance, at this time, the limiting slide block 4 cannot continue to axially move, and the input shaft 2, the screw 3 and the steering wheel cannot continue to rotate under the limiting action of the limiting slide block 4, namely, the steering wheel rotates to the dead position, so that the rotation angle of the steering wheel can be limited.

According to the steering limiting mechanism 100 provided by the embodiment of the utility model, the steering wheel is connected with the input shaft 2 and the screw 3, and the limiting slide block 4 is in threaded fit with the screw 3, so that when the steering wheel continuously rotates until the limiting slide block 4 is in limiting pressing contact with the inner wall of the shell 1, the steering wheel can be rotated and beaten, namely, the rotating angle of the steering wheel can be limited by utilizing the limiting effect of the slide block, the fixed angle rotation of the steering wheel is realized, the occupied space of the structure is small, the assembly process is simple, the cost of parts is low, and the popularization is easy.

In some embodiments, a first accommodating cavity 11 and a second accommodating cavity 12 are formed in the shell 1, a mounting partition part 13 is arranged between the first accommodating cavity 11 and the second accommodating cavity 12, the screw 3 and the limit slider 4 are both positioned in the first accommodating cavity 11, namely, the first accommodating cavity 11 is used for mounting the screw 3 and the limit slider 4, the screw 3 can rotate in the first accommodating cavity 11, and the limit slider 4 can axially move in the first accommodating cavity 11.

Wherein the installation partition 13 is used to separate the first accommodation chamber 11 and the second accommodation chamber 12, as shown in fig. 2 and 3, the first accommodation chamber 11 is located at the left side of the installation partition 13, and the second accommodation chamber 12 is located at the right side of the installation partition 13. Meanwhile, the installation separation part 13 is provided with a communication hole, the input shaft 2 extends into the second accommodating cavity 12 and is rotatably supported at the communication hole through the bearing piece 5 to be connected with the screw 3, namely, the bearing piece 5 is sleeved on the outer side of the input shaft 2, the inner ring 51 of the bearing piece is relatively fixed with the input shaft 2, the outer ring 52 of the bearing piece is relatively fixed with the installation separation part 13, and the end part of the input shaft 2 can be stably rotatably supported at the installation separation part 13 by utilizing the running fit between the inner ring 51 of the bearing piece and the outer ring 52 of the bearing piece, and the input shaft 2 and the screw 3 can be in power connection in the communication hole.

Specifically, as shown in fig. 2, the input shaft 2 and the screw 3 both extend in the left-right direction, the right end of the input shaft 2 extends out of the housing 1, and the left end of the input shaft 2 extends into the second accommodating chamber 12 and is connected with the right end of the screw 3 at the mounting partition 13, whereby the right end of the input shaft 2 can be caused to rotate while driving the right end of the screw 3 to rotate with the steering wheel, and further the limit slider 4 can be caused to axially move in the left-right direction as shown in fig. 2.

It can be understood that the bearing member 5 is installed between the input shaft 2 and the installation partition portion 13 at the communication hole, so that when the input shaft 2 rotates, the bearing member 5 can rotatably support the input shaft 2, the radial position of the input shaft 2 is ensured to be stable, the rotation resistance of the input shaft 2 is reduced, and the accurate transmission of the input shaft 2 and the screw 3 is realized. In a practical concrete design, the bearing member 5 may be selected from rolling bearings, sliding bearings, and the like.

In some embodiments, the mounting partition 13 is formed with a first limiting surface 14 on a side facing into the first accommodating cavity 11, and a second limiting surface 15 opposite to the first limiting surface 14 along the axial direction of the screw 3 is formed in the housing 1, and the limiting slider 4 is adapted to abut against the first limiting surface 14 when the input shaft 2 rotates to a maximum angle in the first direction and is adapted to abut against the second limiting surface 15 when the input shaft 2 rotates to a maximum angle in the second direction. That is, the first limiting surface 14 and the second limiting surface 15 are used together to limit the movement range of the limiting slider 4, that is, the sum of the distance between the first limiting surface 14 and the limiting slider 4 and the distance between the second limiting surface 15 and the limiting slider 4 is the maximum travel distance that the limiting slider 4 can move.

Specifically, as shown in fig. 2 and 3, the first limiting surface 14 is a left side surface of the installation partition 13, and the second limiting surface 15 is a left end inner side surface of the housing 1. When the input shaft 2 rotates to the maximum angle along the first direction, the screw 3 simultaneously rotates to the maximum angle along the first direction, the screw 3 drives the limit slider 4 to move to be pressed against the first limit surface 14, when the input shaft 2 rotates to the maximum angle along the second direction, the screw 3 simultaneously rotates to the maximum angle along the second direction, and the screw 3 drives the limit slider 4 to move to be pressed against the second limit surface 15, so that the limit effect of the limit slider 4 when the steering wheel rotates to the maximum angle can be realized. The clockwise direction may be set as a first direction, and the counterclockwise direction may be set as a second direction, that is, when the input shaft 2 rotates to the maximum angle in the clockwise direction, the limit slider 4 may abut against the first limit surface 14 to the right in the axial direction, and when the input shaft 2 rotates to the maximum angle in the counterclockwise direction, the limit slider 4 may abut against the second limit surface 15 to the left in the axial direction.

And, the counterclockwise direction may also be set as the first direction, and the clockwise direction as the second direction. The moving direction of the limit sliding block 4 can be adjusted by setting the screw threads of the screw 3 and the threaded hole 42.

In some embodiments, the housing 1 includes an end cap 16, the end cap 16 is detachably mounted at an end of the first accommodating cavity 11 away from the second accommodating cavity 12, and the second limiting surface 15 is formed on the end cap 16. As shown in fig. 2, the left end of the housing 1 is configured as an open end, and the end cap 16 is mounted on the left end of the housing 1 such that the end cap 16 closes the left end of the housing 1 and the left end of the first accommodating chamber 11 is closed, whereby the limit slider 4 moves axially to the left to press against the right side of the end cap 16, at this time, the screw 3 cannot continue to rotate in the first direction, and the steering wheel cannot continue to rotate in the first direction, thereby limiting the maximum rotation angle of the steering wheel in the first direction.

The end cover 16 is detachable, so that the end cover 16 can be detached from the shell 1 alone, and when the end cover 16 is detached, the screw 3 and the sliding block can be detached from the opening of the shell 1 from the first accommodating cavity 11, thereby being convenient to maintain and assemble. And in actual installation, the end cap 16 may be detachably mounted to the open end of the housing 1 by a connection member such as a bolt, or may be detachably connected by a snap or other means.

In some embodiments, the end cap 16 is configured to be screwed to an inner wall of the first accommodating cavity 11, and a distance between the first limiting surface 14 and the second limiting surface 15 is adjustable. The position of the second limiting surface 15 can be adjusted by adjusting the position of the end cover 16 at the end part of the shell 1, and the distance between the first limiting surface 14 and the second limiting surface 15 is further adjusted, so that the moving stroke of the limiting slide block 4 is changed, and the maximum rotating angle of the steering wheel is changed, so that the steering wheel is suitable for different vehicle types.

Specifically, an internal thread is provided at the inner peripheral wall of the left end of the first accommodation chamber 11, and the end cap 16 is provided with an external thread that mates with the internal thread. Therefore, when the rotary end cover 16 moves towards the direction approaching the first limiting surface 14, the length in the first accommodating cavity 11 can be reduced, the distance between the second limiting surface 15 and the first limiting surface 14 is shortened, the moving stroke of the limiting slide block 4 is shortened, the maximum rotation angle of the screw rod 3 is reduced, and the maximum rotation angle of the steering wheel is reduced. When the rotary end cover 16 moves in a direction away from the first limiting surface 14, the length in the first accommodating cavity 11 can be increased, the distance between the second limiting surface 15 and the first limiting surface 14 becomes longer, the maximum rotation angle of the screw 3 is increased, and the maximum rotation angle of the steering wheel is increased. Therefore, the moving stroke of the limit sliding block 4 can be changed by changing the position of the end cover 16, and the maximum rotating angle of the steering wheel is changed, so that the steering wheel is suitable for different vehicle types, the structure is simple, the adjustment can be realized by rotating the end cover 16, and the operation is convenient.

In some embodiments, the end of the input shaft 2 is provided with a first rod body 21, the first rod body 21 is formed with an axial open shaft hole, the end of the screw 3 is provided with a second rod body 31, and the second rod body 31 extends into the shaft hole to be matched with the periphery Xiang Chuandong of the first rod body 21. As shown in fig. 2, the left end of the input shaft 2 is provided with a first rod body portion 21, the right end of the screw 3 is provided with a second rod body portion 31, a shaft hole of the first rod body portion 21 is opened to the left to be in plug-in fit with the second rod body portion 31, so that the second rod body portion 31 can axially extend into the shaft hole of the first rod body portion 21, and the first rod body portion 21 and the second rod body portion 31 can be in circumferential limit fit in the shaft hole to realize power connection between the screw 3 and the input shaft 2.

The first rod body 21 is supported by the bearing member 5 in a penetrating manner, as shown in fig. 2 and 3, the first rod body 21 is supported by the bearing member 5 in a penetrating manner, so that the input shaft 2 is rotatably supported by the bearing member 5, meanwhile, the input shaft 2 is close to the right end of the housing 1, a bearing member 5 is also arranged between the input shaft 2 and the housing 1, and the two bearing members 5 are jointly supported by the rotation of the input shaft 2, so that the accurate transmission of the input shaft 2 is ensured.

In some embodiments, the steering limiting mechanism 100 further includes a plug 6, the plug 6 is sleeved outside the first rod body 21, a first stop surface 22 is further formed at an end of the input shaft 2, and the inner ring 51 of the bearing member is axially limited and pressed between the first stop surface 22 and the plug 6, that is, the plug 6 and the first stop surface 22 can be jointly used for limiting the inner ring 51 of the bearing member to axially move, one end of the inner ring 51 of the bearing member is axially pressed on the first stop surface 22, and the other end of the inner ring 51 of the bearing member is axially pressed on the plug 6, so that the inner ring 51 of the bearing member is axially limited and pressed between the first stop surface 22 and the plug 6, and the position of the inner ring 51 of the bearing member is prevented from axially moving when the input shaft 2 rotates.

Specifically, as shown in fig. 2 and 3, the input shaft 2 is formed with a first stop surface 22 at the right end of the first rod body 21, the plug screw 6 is sleeved outside the left end of the first rod body 21, and the inner ring 51 of the bearing member is limited between the right side of the plug screw 6 and the left side of the first stop surface 22, so that the stability of the bearing member 5 can be ensured, and stable rotation of the input shaft 2 can be realized. The screw plug 6 may be screwed with the first rod body 21, so that the screw plug 6 may be screwed into the first rod body 21 from the left end to achieve a stopping effect on the inner ring of the bearing.

In some embodiments, the end of the limit slider 4 facing the installation separation part 13 is further formed with an avoidance groove 41, the limit slider 4 is suitable for avoiding the avoidance of the screw plug 6 through the avoidance groove 41 when moving towards the installation separation part 13, wherein the installation separation part 13 is provided with a communication hole, the first limit surface 14 is an annular surface surrounding the communication hole, the screw plug 6 is located in the communication hole, and the first limit surface 14 is distributed around the screw plug 6, therefore, when the limit slider 4 moves along the axial direction, the limit slider 4 can move towards the first limit surface 14 and gradually limit and press against the first limit surface 14, and in the process of gradually pressing against the first limit surface 14, the limit slider 4 can not form pressing interference with the screw plug 6, so that the limit slider 4 can accurately limit the screw 3 and the steering wheel.

Specifically, as shown in fig. 2 and 3, the right side of the limit slider 4 is provided with an avoidance groove 41, the avoidance groove 41 is formed by recessing inwards on the end surface of the limit slider 4, and the avoidance groove 41 is configured as an annular groove and is arranged around one end of the threaded hole 42, so that the plug screw 6 can reasonably avoid the limit slider 4 at the avoidance groove 41 in the threaded fit process of the screw 3 and the threaded hole 42. When the screw 3 rotates in the first direction, the limit slider 4 moves to the right, the right end surface of the limit slider 4 is pressed against the mounting partition 13, and the screw plug 6 is avoided at the avoiding groove 41.

In some embodiments, the steering limiting mechanism 100 further includes a collar 7, the inner peripheral wall of the mounting partition 13 is formed with a second stop surface 131 and a limiting slot, the collar 7 is clamped to the limiting slot, and the outer ring 52 of the bearing member is axially limited and pressed between the second stop surface 131 and the collar 7, so that the collar 7 and the second stop surface 131 can be used for limiting the outer ring 52 of the bearing member to axially move, so that the end of the input shaft 2 can be stably supported on the bearing member 5, and the stability of rotation support is ensured.

Specifically, as shown in fig. 2 and 3, a limiting protrusion protruding inward along a radial direction is provided on an inner circumferential wall of a left end of the communication hole, the limiting protrusion is configured in a ring shape, the second stop surface 131 is formed on a right side surface of the limiting protrusion, the limiting clamping groove is provided on the inner circumferential wall of the right end of the communication hole, and the limiting clamping groove is opened inward along the radial direction of the communication hole, thereby, the clamping ring 7 can be clamped to the limiting clamping groove, so that the clamping ring 7 and the second stop surface 131 are distributed opposite to each other along the axial direction of the communication hole. And when specifically installing, can load into the outer lane 52 of bearing member from the right side, with rand 7 card income spacing draw-in groove again, realize the axial spacing to the outer lane 52 of bearing member, simple structure, simple to operate, and can guarantee the stability of the outer lane 52 of bearing member, from this, when input shaft 2 rotates, the axial position of the outer lane 52 of bearing member can not take place to move.

Therefore, by arranging the first stop surface 22 and the screw plug 6 and the second stop surface 131 and the clamping ring 7, the inner ring 51 of the bearing piece and the outer ring 52 of the bearing piece can be effectively limited in the axial direction, so that the bearing piece 5 can be ensured to stably support the input shaft 2, and the input shaft 2 and the screw 3 can be ensured to be accurately connected and driven.

The utility model further provides a vehicle.

According to the vehicle of the utility model, the steering limit mechanism 100 in any of the above embodiments is provided. The input shaft 2 in the steering limiting mechanism 100 is connected with the steering wheel, the screw 3 and the limiting slide block 4 are arranged, so that the steering wheel can rotate to drive the input shaft 2 to rotate, the input shaft 2 rotates to drive the screw 3 to rotate, the limiting slide block moves axially along the screw 3 due to rotation of the screw 3, when the screw 3 rotates to a maximum angle, the limiting slide block 4 moves to a maximum movement stroke, the rotating angle of the steering wheel is limited, the fixed angle rotation of the steering wheel is realized, the structure occupation space is small, the assembly process is simple, the cost of parts is low, and the popularization is easy.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A steering limit mechanism, comprising:

A housing;

The input shaft is connected with the steering wheel, and one end of the input shaft extends into the shell;

the screw rod is rotatably arranged in the shell and is connected with one end of the input shaft;

The limiting slide block is sleeved outside the screw and in threaded connection with the screw, and is suitable for being pressed against the inner wall of the shell when the input shaft drives the screw to rotate to a maximum angle.

2. The steering limiting mechanism according to claim 1, wherein a first accommodating chamber and a second accommodating chamber are formed in the housing, an installation partition portion is arranged between the first accommodating chamber and the second accommodating chamber, the screw rod and the limiting slider are both located in the first accommodating chamber, the installation partition portion is provided with a communication hole, and the input shaft extends into the second accommodating chamber and is rotatably supported at the communication hole through a bearing member to be connected with the screw rod.

3. The steering limiting mechanism according to claim 2, wherein the installation partition is formed with a first limiting surface on a side facing into the first accommodating chamber, a second limiting surface which is disposed opposite to the first limiting surface in the axial direction of the screw rod is formed in the housing, and the limiting slider is adapted to be pressed against the first limiting surface when the input shaft rotates to a maximum angle in a first direction and to be pressed against the second limiting surface when the input shaft rotates to a maximum angle in a second direction.

4. The steering limiting mechanism of claim 3, wherein the housing includes an end cap removably mounted to an end of the first receiving cavity remote from the second receiving cavity, the second limiting surface being formed in the end cap.

5. The steering limiting mechanism of claim 4, wherein the end cap is configured to be threadably coupled to an inner wall of the first receiving cavity and the spacing between the first limiting surface and the second limiting surface is adjustable.

6. The steering limiting mechanism according to claim 2, wherein a first rod body portion is provided at an end portion of the input shaft, an axial open shaft hole is formed in the first rod body portion, a second rod body portion is provided at an end portion of the screw rod, the second rod body portion extends into the shaft hole to be in circumferential driving fit with the first rod body portion, and the first rod body portion is supported by the bearing member in a penetrating manner.

7. The steering limiting mechanism of claim 6, further comprising a plug screw, wherein a first stop surface is further formed at an end of the input shaft, the plug screw is sleeved outside the first rod body, and the inner ring of the bearing member is axially limited and pressed between the first stop surface and the plug screw.

8. The steering limiting mechanism of claim 7, wherein an end of the limiting slider facing the mounting compartment is further formed with a relief groove, the limiting slider being adapted to be relieved from the plug by the relief groove when moving toward the mounting compartment.

9. The steering limiting mechanism according to claim 2, further comprising a collar, wherein the inner peripheral wall of the mounting partition is formed with a second stop surface and a limiting groove, the collar is clamped to the limiting groove, and the outer ring of the bearing member is axially limited against and pressed between the second stop surface and the collar.

10. A vehicle provided with a steering limit mechanism as claimed in any one of claims 1 to 9.