Corner limiter, steering system and vehicle

Abstract

The application discloses a rotation angle limiter, a steering system and a vehicle, and relates to the technical field of rotation angle limiters. The rotation angle limiter comprises a shell, a limiting block and a limiting disc. The limiting block is rotatably installed on the shell to switch between a first state and a second state. The limiting disc is arranged on the shell and is rotatable relative to the shell. The limiting disc is provided with a matching part. The limiting disc is adapted to be limited by the limiting block in the first state or the second state through the matching part to limit the two-direction freedom of the limiting disc. Thus, the limiting effect can be guaranteed, the space can be saved, the miniaturized design can be realized, and the practicability of the rotation angle limiter is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a steering angle limiter, a steering system, and a vehicle. Background Technology

[0002] In related technologies, steering wheel angle limiting mechanisms typically have a pair of meshing gears. The pinion is connected to the steering wheel, and the large gear has a stop tooth that is higher than the normal meshing tooth profile. The stop tooth is used to cooperate with the pinion to limit the rotation direction of the pinion. However, the above structure has limited torque capacity, the pinion teeth are easily damaged, and the large gear requires a large amount of space, leaving room for improvement. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a corner limiter, in which the limit block is not easily damaged when subjected to impact, ensuring the limiting effect, and the limit block is small in size, which helps to save space and achieves a miniaturized design.

[0004] According to an embodiment of the present invention, a corner limiter includes: a housing; a limiting block rotatably mounted on the housing to switch between a first state and a second state; and a limiting disk disposed on the housing and rotatable relative to the housing, the limiting disk having a mating portion, the limiting disk being adapted to limit the two degrees of freedom of the limiting disk in two directions by means of the mating portion abutting against the limiting block located in the first state or the second state.

[0005] According to the embodiment of the present invention, the corner limiter is provided with a limit block, which can be used to abut against the limit plate to limit the steering wheel angle. The limit block is not easily damaged when subjected to impact, thus ensuring the limiting effect. Moreover, the limit block is small in size, which helps to save space and realizes a miniaturized design, thereby improving the practicality of the corner limiter.

[0006] According to some embodiments of the present invention, when the limiting disk rotates to a first position along a first direction, the engaging portion is adapted to abut against the limiting block located in the first state to limit the rotational degree of freedom of the limiting disk in the first direction; when the limiting disk rotates to a second position along a second direction, the engaging portion is adapted to abut against the limiting block located in the second state to limit the rotational degree of freedom of the limiting disk in the second direction.

[0007] According to some embodiments of the present invention, when the limiting disc rotates toward the second direction, it pushes the limiting block to switch to the second state through the mating part; when the limiting disc rotates toward the first direction, it pushes the limiting block to switch to the first state through the mating part.

[0008] According to some embodiments of the present invention, the corner limiter includes a limiting block comprising a pivot portion, a first protrusion, and a second protrusion, wherein the first protrusion and the second protrusion are disposed on the pivot portion, and the pivot portion is rotatably disposed on the housing; when the limiting disc rotates toward the second direction, the mating portion is adapted to push the first protrusion to switch the limiting block to the second state; when the limiting disc rotates toward the first direction, the mating portion is adapted to push the second protrusion to switch the limiting block to the first state.

[0009] According to some embodiments of the present invention, the housing is provided with a limiting groove, one of the limiting groove and the pivot part is provided with the pivot column and the other is provided with a pivot hole, the pivot column passes through the pivot hole and the limiting block is rotatably installed in the limiting groove.

[0010] According to some embodiments of the present invention, the corner limiter has a housing with a limiting groove, and a limiting block is rotatably disposed in the limiting groove. When the limiting block rotates, it is adapted to contact the inner wall of the limiting groove to position the limiting block in the first state or the second state.

[0011] According to some embodiments of the present invention, the corner limiter abuts against the limit block through surface contact.

[0012] According to some embodiments of the present invention, in the circumferential direction of the limiting disk, a first abutting surface and a second abutting surface are formed on opposite sides of the mating portion, and the mating portion is adapted to abut against the limiting block through the first abutting surface or the second abutting surface; wherein, in a direction away from the rotation axis of the limiting disk, the first abutting surface and the second abutting surface extend in a direction close to each other.

[0013] According to some embodiments of the present invention, the corner limiter further includes a plate body portion, the plate body portion having a first positioning portion, and the limit block having a second positioning portion, wherein the first positioning portion is used to selectively cooperate with the second positioning portion to limit the limiter to the first state or the second state.

[0014] According to some embodiments of the corner limiter of the present invention, one of the first positioning part and the second positioning part is configured as a positioning protrusion and the other is configured as a positioning groove, the positioning protrusion or the positioning groove having an avoidance notch; when the mating part is separated from the limiting block, the positioning protrusion is limited to the positioning groove; when the mating part is engaged with the limiting block, the disc part avoids the limiting block through the avoidance notch.

[0015] According to some embodiments of the corner limiter of the present invention, the mating part is connected to the side of the disc body facing the limiting block; and / or, the limiting block is disposed on the side of the disc body along the thickness direction; and / or, the positioning protrusion and the positioning groove are clearance fit, and the range of the mating clearance between the positioning protrusion and the positioning groove is 0.01mm-2mm; and / or, in the circumferential direction of the limiting disc, a first abutting surface and a second abutting surface are formed on opposite sides of the mating part, in the first state, the first abutting surface abuts against the limiting block, and in the second state, the second abutting surface abuts against the limiting block, and in the circumferential direction of the disc body, the distance between the first abutting surface in the first state and the second abutting surface in the second state is A, and the first positioning part is formed with the clearance notch, the size of the clearance notch being not less than A.

[0016] According to some embodiments of the present invention, the corner limiter further includes: a drive shaft, the drive shaft passing through the housing and connected to the limiting disk, the drive shaft being used to drive the limiting disk to rotate along a first direction or a second direction.

[0017] According to some embodiments of the present invention, the drive shaft and the limiting disk are integrally formed parts.

[0018] The present invention also proposes a steering system.

[0019] A vehicle according to an embodiment of the present invention includes: a corner limiter according to any of the above embodiments.

[0020] The present invention also proposes a vehicle.

[0021] A vehicle according to an embodiment of the present invention includes: a steering system according to any of the above embodiments.

[0022] The steering system, the vehicle, and the angle limiter have the same advantages over the prior art, which will not be elaborated here.

[0023] Additional aspects and advantages of the invention 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 invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the corner limiter according to an embodiment of the present invention when the limit plate is in the first position; Figure 2 This is a schematic diagram of the corner limiter according to an embodiment of the present invention when the limit plate is in the second position; Figure 3 This is a cross-sectional view of the corner limiter according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the corner limiter according to an embodiment of the present invention when the limiting plate and the fourth mating surface are engaged; Figure 5 This is a schematic diagram of the corner limiter according to an embodiment of the present invention when the limit block is switched to the first state; Figure 6 This is a schematic diagram of a corner limiter according to another embodiment of the present invention; Figure 7 yes Figure 6 A cross-sectional view of the corner limiter shown; Figure 8 This is an isometric view of a corner limiter according to another embodiment of the present invention; Figure 9 yes Figure 8 The front view of the corner limiter shown.

[0025] Figure label: Corner limit switch 100; Housing 1; Mounting cavity 11; Limiting groove 12; Limiting block 2; pivoting part 21; first protrusion 22; first mating surface 221; second mating surface 222; second protrusion 23; third mating surface 231; fourth mating surface 232; positioning groove 24; Limiting disc 3; main body 31; mating part 32; first abutting surface 321; second abutting surface 322; disc body 33; positioning protrusion 34; second tooth part 35; receiving cavity 36; Drive shaft 4; first tooth 41; pivot column 5; support bearing 6. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, 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," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Hereinafter, with reference to the accompanying drawings, an angle limiter 100 according to an embodiment of the present invention will be described.

[0029] like Figures 1-9 As shown, the corner limiter 100 according to an embodiment of the present invention includes: a housing 1, a limiting block 2, and a limiting disk 3. The limiting block 2 is rotatably mounted on the housing 1 to switch between a first state and a second state. The limiting disk 3 is disposed on the housing 1 and is rotatable relative to the housing 1. The limiting disk 3 is provided with a mating part 32. The limiting disk 3 is adapted to limit the two degrees of freedom of the limiting disk 3 in two directions by the mating part 32 abutting against the limiting block 2 located in the first state or the second state.

[0030] For example, refer to Figures 1-2 As shown, the corner limiter 100 includes a housing 1, a limiting block 2, and a limiting disc 3. The housing 1 can be a one-piece molded part, such as a one-piece casting. The limiting block 2 is rotatably mounted on the housing 1 to switch between a first state and a second state. For example, the limiting block 2 can be configured to rotate in a second direction to switch to the first state, and can also rotate in the first direction to switch to the second state.

[0031] The limiting disc 3 is connected to the steering wheel. The housing 1 is provided with a mounting cavity 11. The limiting disc 3 is located in the mounting cavity 11 of the housing 1, and the limiting disc 3 is supported on the inner wall of the mounting cavity 11 by a support bearing 6, so that the limiting disc 3 can rotate relative to the housing 1. The limiting disc 3 is provided with a protruding mating part 32, which is arranged opposite to the limiting block 2. The mating part 32 is used to selectively mate with the limiting block 2.

[0032] The limiting disc 3 is adapted to abut against the limiting block 2 in either the first or second state via the mating part 32 to restrict the degree of freedom of the limiting disc 3 in two directions. For example, the limiting disc 3 can be configured to abut against the limiting block 2 in the first state to restrict the degree of freedom of the limiting disc 3 in the first direction, and the limiting disc 3 can be configured to abut against the limiting block 2 in the second state to restrict the degree of freedom of the limiting disc 3 in the second direction.

[0033] Understandably, the limit block 2 can withstand a large torque, and it is not easily damaged when subjected to impact, thus ensuring the reliability of the limit block 2. In addition, the limit block 2 is small in size, which helps to save space.

[0034] According to the embodiment of the present invention, the corner limiter 100, by setting the limit block 2, can be used to abut against the limit disc 3 to achieve the angle limit of the steering wheel. The limit block 2 is not easily damaged when subjected to impact, thus ensuring the limiting effect. Moreover, the limit block 2 is small in size, which helps to save space and realizes a miniaturized design, thereby improving the practicality of the corner limiter 100.

[0035] In some embodiments of the present invention, reference is made to... Figures 1-2 As shown, when the limiting disc 3 rotates to the first position along the first direction, the mating part 32 is adapted to abut against the limiting block 2 in the first state to restrict the rotational freedom of the limiting disc 3 in the first direction. At this time, the limiting disc 3 can only rotate along the second direction. When the limiting disc 3 rotates to the second position along the second direction, the mating part 32 is adapted to abut against the limiting block 2 in the second state to restrict the rotational freedom of the limiting disc 3 in the second direction. At this time, the limiting disc 3 can only rotate along the first direction, thereby realizing the angle limiting of the steering wheel. It should be noted that the second direction is opposite to the first direction. For example, the first direction can be set to a clockwise direction, and the second direction can be set to a counterclockwise direction. This ensures the limiting effect of the limiting block 2 on the limiting disc 3 and improves the reliability of the angle limiter 100.

[0036] In some embodiments of the present invention, reference is made to... Figures 1-5 As shown, when the limiting disk 3 rotates in the second direction, it pushes the limiting block 2 to switch to the second state through the mating part 32; when the limiting disk 3 rotates in the first direction, it pushes the limiting block 2 to switch to the first state through the mating part 32.

[0037] Specifically, the first direction can be set to clockwise and the second direction to counterclockwise. The limiting disk 3 can be driven to rotate clockwise, and the mating part 32 cooperates with the limiting block 2 to push the limiting block 2 to rotate counterclockwise and switch to the first state. At this time, the limiting disk 3 can be driven to rotate clockwise to the first position, so that the mating part 32 can abut against the limiting block 2 in the first state to limit the clockwise rotational freedom of the limiting disk 3. Alternatively, the limiting disk 3 can be driven to rotate counterclockwise, and the mating part 32 cooperates with the limiting block 2 to push the limiting block 2 to rotate clockwise and switch to the second state. At this time, the limiting disk 3 can be driven to rotate counterclockwise to the second position, so that the mating part 32 can abut against the limiting block 2 in the second state to limit the counterclockwise rotational freedom of the limiting disk 3.

[0038] With the above settings, the limit block 2 and the limit disk 3 can be linked and cooperate to ensure that the limit disk 3 can switch stably between the first position and the second position, which improves the reliability of the corner limiter 100, simplifies the structure, reduces costs, and improves the economy of the corner limiter 100.

[0039] In some embodiments of the present invention, the limiting block 2 includes a pivot portion 21, a first protrusion 22 and a second protrusion 23, the first protrusion 22 and the second protrusion 23 being disposed on the pivot portion 21; when the limiting disk 3 rotates toward the second direction, the engaging portion 32 is adapted to push the first protrusion 22 to switch the limiting block 2 to the second state; when the limiting disk 3 rotates toward the first direction, the engaging portion 32 is adapted to push the second protrusion 23 to switch the limiting block 2 to the first state.

[0040] For example, refer to Figures 1-5 As shown, the limiting block 2 includes a pivot portion 21, a first protrusion 22, and a second protrusion 23. The first protrusion 22 and the second protrusion 23 are respectively disposed on opposite sides of the pivot portion 21 and arranged symmetrically to construct the limiting block 2 into a V shape. The pivot portion 21 is rotatably disposed on the housing 1. The first protrusion 22 is provided with a first mating surface 221 and a second mating surface 222. The second protrusion 23 is provided with a third mating surface 231 and a fourth mating surface 232.

[0041] In the first state, a portion of the first protrusion 22 extends into the movement path of the mating portion 32. When the limiting disk 3 rotates to the first position in the first direction, the mating portion 32 is adapted to abut against the first mating surface 221 of the first protrusion 22 to limit the rotational freedom of the limiting disk 3 in the first direction. In the second state, a portion of the second protrusion 23 extends into the movement path of the mating portion 32, and the mating portion 32 is adapted to abut against the third mating surface 231 of the second protrusion 23 to limit the rotational freedom of the limiting disk 3 in the second direction. When the limiting disk 3 rotates toward the second direction, the mating portion 32 is adapted to push the first protrusion 22 to switch the limiting block 2 to the second state; when the limiting disk 3 rotates toward the first direction, the mating portion 32 is adapted to push the second protrusion 23 to switch the limiting block 2 to the first state.

[0042] Specifically, the first direction can be set to clockwise and the second direction to counterclockwise. The limiting disc 3 can be driven to rotate clockwise, and the mating part 32 engages with the fourth mating surface 232 of the second protrusion 23 to push the limiting block 2 to rotate counterclockwise and switch to the first state. At this time, the limiting disc 3 can be driven to rotate clockwise to the first position, so that the mating part 32 can abut against the first mating surface 221 of the first protrusion 22, thereby restricting the clockwise rotational freedom of the limiting disc 3. Alternatively, the limiting disc 3 can be driven to rotate counterclockwise, and the mating part 32 engages with the second mating surface 222 of the first protrusion 22 to push the limiting block 2 to rotate clockwise and switch to the second state. At this time, the limiting disc 3 can be driven to rotate counterclockwise to the second position, so that the mating part 32 can abut against the third mating surface 231 of the second protrusion 23, thereby restricting the counterclockwise rotational freedom of the limiting disc 3.

[0043] The above settings can make the switching between different states of the limit block 2 smoother and ensure the limiting effect of the limit block 2 on the limit disk 3, which helps to improve the reliability of the corner limiter 100.

[0044] In some embodiments of the present invention, the housing 1 is provided with a limiting groove 12, one of the limiting groove 12 and the pivot part 21 is provided with a pivot post 5 and the other is provided with a pivot hole, the pivot post 5 is inserted into the pivot hole so that the limiting block 2 can be rotatably installed in the limiting groove 12.

[0045] For example, refer to Figures 1-5 As shown, the housing 1 is provided with a limiting groove 12, which is located at the edge of the mounting cavity 11 and communicates with the mounting cavity 11. One of the limiting groove 12 and the pivot part 21 is provided with a pivot post 5 and the other is provided with a pivot hole. The pivot post 5 passes through the pivot hole to rotatably install the limiting block 2 in the limiting groove 12. It should be noted that the pivot post 5 can be integrally formed with the housing 1 (or the limiting block 2) or it can be separately formed and then assembled and fixed.

[0046] Specifically, a pivot post 5 can be provided at the bottom of the limiting groove 12, and a pivot hole can be provided on the pivot part 21. The pivot post 5 passes through the pivot hole so that the limiting block 2 can rotate; or, a pivot hole can be provided at the bottom of the limiting groove 12, and a pivot post 5 can be provided on the pivot part 21. The pivot post 5 passes through the pivot hole so that the limiting block 2 can rotate.

[0047] The above settings enable a stable connection between the limit block 2 and the housing 1, which helps improve the operational stability of the limit block 2 and enhances the practicality of the corner limiter 100.

[0048] In some embodiments of the present invention, the housing 1 is provided with a limiting groove 12, and the limiting block 2 is rotatably disposed in the limiting groove 12. When the limiting block 2 rotates, it is adapted to contact the inner wall of the limiting groove 12 to position the limiting block 2 in a first state or a second state.

[0049] For example, refer to Figures 1-5 As shown, the housing 1 is provided with a limiting groove 12, which is located at the edge of the mounting cavity 11 and communicates with the mounting cavity 11. The limiting block 2 is rotatably installed in the limiting groove 12, and a part of the limiting block 2 extends into the mounting cavity 11 for selectively engaging with the mating part 32. When the limiting block 2 rotates, it is adapted to contact the inner wall of the limiting groove 12 to position the limiting block 2 in a first state or a second state.

[0050] Specifically, the first direction can be set to clockwise and the second direction to counterclockwise, so that the limiting disk 3 can be driven to rotate clockwise, and the mating part 32 cooperates with the limiting block 2 to push the limiting block 2 to rotate counterclockwise, and the limiting block 2 contacts the inner wall of the limiting groove 12 to be positioned in the first state; or, the limiting disk 3 can be driven to rotate counterclockwise, and the mating part 32 cooperates with the limiting block 2 to push the limiting block 2 to rotate clockwise, and the limiting block 2 contacts the inner wall of the limiting groove 12 to be positioned in the second state.

[0051] The above settings simplify the structure, reduce processing costs, and ensure that the limit block 2 can stably switch between the first and second states, thereby improving the reliability of the corner limiter 100.

[0052] In some embodiments of the present invention, such as Figures 1-2 As shown, the mating part 32 abuts against the limiting block 2 through surface contact. This arrangement increases the mating area between the mating part 32 and the limiting block 2, which helps reduce the impact on the limiting block 2, extends its service life, improves the limiting effect of the limiting block 2, and enhances the reliability of the corner limiter 100.

[0053] In some embodiments of the present invention, a first abutting surface 321 and a second abutting surface 322 are formed on opposite sides of the fitting part 32 in the circumferential direction of the limiting disk 3, and the fitting part 32 is adapted to abut against the limiting block 2 through the first abutting surface 321 or the second abutting surface 322.

[0054] For example, refer to Figure 5 As shown, in the circumferential direction of the limiting disk 3, a first abutting surface 321 and a second abutting surface 322 can be formed on opposite sides of the mating part 32. The first abutting surface 321 and the second abutting surface 322 are arranged radially symmetrically about the limiting disk 3. The mating part 32 is adapted to abut against the limiting block 2 through the first abutting surface 321 or the second abutting surface 322.

[0055] Specifically, such as Figures 1-2 As shown, when the limiting plate 3 rotates along the first direction, the limiting plate 3 can cooperate with the limiting block 2 through the first abutment surface 321, and when the limiting plate 3 rotates along the second direction, the limiting plate 3 can cooperate with the limiting block 2 through the second abutment surface 322. Therefore, the limiting plate 3 can stably cooperate with the limiting block 2 when rotating along either the first or second direction, improving the design rationality of the corner limiter 100.

[0056] In some embodiments of the present invention, reference is made to... Figure 5 As shown, in the direction away from the rotation axis of the limiting disk 3, the first abutment surface 321 and the second abutment surface 322 extend in a direction close to each other, so that the first abutment surface 321 and the second abutment surface 322 are formed as inclined surfaces. This allows the first abutment surface 321 and the second abutment surface 322 to better fit with the limiting block 2, which helps to increase the contact area, reduce impact, and extend the service life of the corner limiter 100.

[0057] Of course, the present invention is not limited to this. The first abutting surface 321 and the second abutting surface 322 can be constructed as arc-shaped surfaces so that the mating part 32 can abut against the limiting block 2 through the arc-shaped structure; or, the first abutting surface 321 and the second abutting surface 322 can be constructed as bent surfaces so that the mating part 32 can abut against the limiting block 2 through a portion of the first abutting surface 321 or a portion of the second abutting surface 322; or, the first abutting surface 321 and the second abutting surface 322 can be constructed as wavy so that the mating part 32 can abut against the limiting block 2 through a plurality of spaced contact points (or contact surfaces); or, the first abutting surface 321 and the second abutting surface 322 can be constructed as other structures that can abut against the limiting block 2, which will not be described in detail here.

[0058] In some embodiments of the present invention, the limiting disk 3 further includes a disk body portion 33, the disk body portion 33 is provided with a first positioning portion, and the limiting block 2 is provided with a second positioning portion. The first positioning portion is used to selectively cooperate with the second positioning portion to limit the limiting disk 3 to a first state or a second state.

[0059] For example, refer to Figures 1-3 As shown, the limiting disc 3 includes a main body 31 and a disc body 33. The main body 31 is cylindrical and passes through the mounting cavity 11 of the housing 1, and is rotatably engaged with the housing 1 via a support bearing 6. The inner wall of the mounting cavity 11 forms an annular support surface. The disc body 33 protrudes radially from the outer peripheral wall of the main body 31, and is rotatably supported on the support surface on one side along the thickness direction. This allows the limiting disc 3 to be easily positioned with the limiting block 2 via the disc body 33, reducing the assembly difficulty of the corner limiter 100, improving assembly efficiency, reducing labor costs, and improving positioning accuracy, thus enhancing the product quality of the corner limiter 100.

[0060] The disc body 33 is provided with a first positioning part, and the limiting block 2 is provided with a second positioning part. The first positioning part is used to selectively cooperate with the second positioning part to restrict the limiting disc 3 to a first state or a second state. Specifically, when the limiting block 2 needs to remain stationary, the first positioning part can cooperate with the second positioning part to restrict the limiting disc 3 to the first state or the second state; and when the limiting block 2 needs to switch from one of the first state and the second state to the other, the first positioning part can disengage from the second positioning part, so that the limiting disc 3 can push the limiting block 2 to move. Thus, it can be ensured that the cooperating part 32 can accurately cooperate with the limiting block 2, improving the reliability of the corner limiter 100.

[0061] In some embodiments of the present invention, one of the first positioning part and the second positioning part is configured as a positioning protrusion 34 and the other is configured as a positioning groove 24, and the positioning protrusion 34 or the positioning groove 24 has an avoidance notch; when the mating part 32 is separated from the limiting block 2, the positioning protrusion 34 and the positioning groove 24 are in a limiting engagement; when the mating part 32 is engaged with the limiting block 2, the disc part 33 avoids the limiting block 2 through the avoidance notch.

[0062] For example, such as Figures 6-7As shown, the first positioning part can be constructed as a positioning protrusion 34, which is located on the side of the disc body 33 facing the limiting block 2. The positioning protrusion 34 extends circumferentially along the disc body 33 and has a clearance notch. The second positioning part can be constructed as a positioning groove 24, which is located on the side of the limiting block 2 facing the disc body 33. When the mating part 32 is separated from the limiting block 2, at least a portion of the positioning protrusion 34 extends into the positioning groove 24, so that the limiting disc 3 can be limited to the limiting block 2 through the positioning protrusion 34, thereby restricting the limiting block 2 to a first state or a second state. When the mating part 32 is engaged with the limiting block 2, the clearance notch is opposite to the positioning groove 24, so that the disc body 33 can avoid the limiting block 2 through the clearance notch, thereby allowing the limiting block 2 to switch between the first state and the second state.

[0063] Alternatively, the first positioning part can be constructed as a positioning groove 24, located on the side of the disc body 33 facing the limiting block 2, and the positioning groove 24 extends circumferentially along the disc body 33. The positioning groove 24 is provided with a clearance notch. The second positioning part can be constructed as a positioning protrusion 34, located on the side of the limiting block 2 facing the disc body 33. When the mating part 32 is separated from the limiting block 2, at least a portion of the positioning protrusion 34 extends into the positioning groove 24, so that the limiting disc 3 can be limited to the limiting block 2 through the positioning groove 24, thereby restricting the limiting block 2 to the first state or the second state. When the mating part 32 is engaged with the limiting block 2, the clearance notch is opposite to the positioning protrusion 34, so that the disc body 33 can avoid the limiting block 2 through the clearance notch, thereby allowing the limiting block 2 to switch between the first state and the second state.

[0064] With the above settings, the limiting disk 3 can stably cooperate with the limiting block 2 when it rotates to the first position or the second position, and the limiting block 2 can be guaranteed to be unaffected by the disk body 33 when switching between the first state and the second state, thereby improving the reliability of the corner limiter 100.

[0065] In some embodiments of the present invention, such as Figures 6-7 As shown, the mating part 32 can be connected to the side of the disc body 33 facing the limiting block 2. This reduces the size of the mating part 32, facilitating a lightweight design.

[0066] In some embodiments of the present invention, such as Figures 6-7 As shown, the limiting block 2 can be disposed on one side of the disc body 33 along the thickness direction. This saves radial space and helps to reduce the overall size of the corner limiter 100.

[0067] In some embodiments of the present invention, the positioning protrusion 34 and the positioning groove 24 are in a clearance fit in the radial direction of the disc body 33, and the range of the clearance between the positioning protrusion 34 and the positioning groove 24 is 0.01mm-2mm. Exemplarily, the clearance between the positioning protrusion 34 and the positioning groove 24 can be set to 0.01mm, 0.05mm, 0.1mm, 0.2mm, 0.5mm, 1mm, 1.5mm, 2mm, etc. This avoids jamming of the limiting block 2 and the limiting disc 3 due to friction, improving the reliability of the corner limiter 100.

[0068] In some embodiments of the present invention, such as Figure 6 As shown, a positioning protrusion 34 may be provided on one side of the disc body 33 along the thickness direction, and the positioning protrusion 34 may be located at the edge of the limiting disc 3; or, a positioning groove 24 may be provided on one side of the disc body 33 along the thickness direction, and the positioning groove 24 may be located at the edge of the limiting disc 3.

[0069] The above settings can reduce the difficulty of arranging the limit block 2 and the limit plate 3, and improve the limiting effect of the limit plate 3 on the limit block 2, thereby improving the design rationality of the corner limiter 100.

[0070] In some embodiments of the present invention, such as Figures 1-3 As shown, on the circumference of the limiting disc 3, a first abutting surface 321 and a second abutting surface 322 are formed on opposite sides of the mating part 32. In the first state, the first abutting surface 321 abuts against the first mating surface 221 of the limiting block 2. In the second state, the second abutting surface 322 abuts against the third mating surface 231 of the limiting block 2. The distance between the first abutting surface 321 in the first state and the second abutting surface 322 in the second state on the circumference of the disc body 33 is A. The first positioning part has an avoidance notch, which is symmetrically arranged about the mating part 32. The dimension of the avoidance notch along the circumference of the disc body 33 is not less than A.

[0071] It should be noted that the distance between the first abutting surface 321 in the first state and the second abutting surface 322 in the second state can be: the distance between the portion of the first abutting surface 321 in the first state that is opposite to the center of the clearance notch along the radial direction of the limiting plate 3, and the distance between the portion of the second abutting surface 322 in the second state that is opposite to the center of the clearance notch along the radial direction of the limiting plate 3; the circumferential dimension of the clearance notch along the plate body 33 can be: the circumferential dimension of the center of the clearance notch along the radial direction of the limiting plate 3 in the plate body 33.

[0072] With the above settings, the disc body 33 can effectively avoid the limit block 2 by avoiding the notch, thus improving the reliability of the corner limiter 100.

[0073] In some embodiments of the present invention, such as Figures 1-3 As shown, the corner limiter 100 of this embodiment further includes: a drive shaft 4, which passes through the housing 1 and is connected to the limiting disk 3. The drive shaft 4 is connected to a steering wheel and is used to drive the limiting disk 3 to rotate along a first direction or a second direction. This allows for a more flexible arrangement of the corner limiter 100 and improves its practicality.

[0074] In some embodiments of the present invention, such as Figures 1-3 As shown, the drive shaft 4 and the limiting disk 3 can be set to rotate synchronously. Therefore, by adjusting the structure of the limiting block 2, the rotation range of the limiting disk 3 can be determined, which helps to reduce the design difficulty of the corner limiter 100.

[0075] In some embodiments of the present invention, such as Figures 1-3 As shown, the drive shaft 4 and the limiting plate 3 can be designed as a single molded part. This reduces the number of parts, simplifies the assembly process, and lowers the assembly difficulty.

[0076] Of course, this application is not limited to this; the drive shaft 4 can also be configured to pass through the limiting plate 3 and be interference-fitted with the limiting plate 3 in the circumferential direction. This is beneficial for meeting different design requirements.

[0077] In some embodiments of the present invention, the limiting disk 3 is provided with a receiving cavity 36, the drive shaft 4 passes through the receiving cavity 36, the outer peripheral wall of the drive shaft 4 is provided with a first tooth 41, the inner wall of the receiving cavity 36 is provided with a second tooth 35, and the first tooth 41 and the second tooth 35 are separably engaged along the circumferential direction of the drive shaft 4.

[0078] For example, refer to Figures 8-9 As shown, the main body 31 of the limiting disk 3 is provided with a receiving cavity 36, which extends through the limiting disk 3 along the axial direction. The drive shaft 4 passes through the receiving cavity 36. The outer peripheral wall of the drive shaft 4 is provided with a first tooth 41, which protrudes outward along the radial direction of the drive shaft 4. The inner wall of the receiving cavity 36 is provided with a second tooth 35, which protrudes inward along the radial direction of the drive shaft 4. The first tooth 41 and the second tooth 35 are separably engaged along the circumferential direction of the drive shaft 4.

[0079] Specifically, the drive shaft 4 can be controlled to rotate in a first direction, thereby driving the first toothed portion 41 to rotate in the first direction. When the first toothed portion 41 and the second toothed portion 35 abut against each other, the drive shaft 4 can drive the limiting disc 3 to rotate synchronously in the first direction through the first toothed portion 41. Alternatively, the drive shaft 4 can be controlled to rotate in a second direction, thereby driving the first toothed portion 41 to rotate in the second direction. When the first toothed portion 41 and the second toothed portion 35 abut against each other, the drive shaft 4 can drive the limiting disc 3 to rotate synchronously in the second direction through the first toothed portion 41. This allows the steering wheel to have a larger rotation angle, thus meeting different design requirements.

[0080] In some embodiments of the present invention, such as Figures 8-9 As shown, multiple first teeth 41 can be provided, and the multiple first teeth 41 are evenly spaced apart along the circumference of the drive shaft 4; at the same time, multiple second teeth 35 can be provided, and the multiple second teeth 35 are evenly spaced apart along the circumference of the receiving cavity 36, and the multiple second teeth 35 and the multiple first teeth 41 are staggered.

[0081] Preferably, there can be two first teeth 41, which are respectively located on opposite sides of the drive shaft 4, and there can be two second teeth 35, with the two first teeth 41 and the two second teeth 35 being staggered.

[0082] With the above configuration, the drive shaft 4 can engage with multiple first teeth 41 and multiple second teeth 35 respectively to drive the limit plate 3 to move synchronously, which helps to improve the stability of the engagement between the drive shaft 4 and the limit plate 3 and improves the reliability of the limit plate 3.

[0083] The present invention also proposes a steering system.

[0084] A steering system according to an embodiment of the present invention includes: a steering angle limiter 100 according to any of the above embodiments.

[0085] According to the steering system of the present invention, the limiting block 2 is not easily damaged when subjected to impact, thus ensuring the limiting effect. Moreover, the limiting block 2 is small in size, which helps to save space and realizes miniaturization design, thereby improving the practicality of the corner limiter 100 and improving the overall performance of the steering system.

[0086] The present invention also proposes a vehicle.

[0087] A vehicle according to an embodiment of the present invention includes: a steering system according to any of the above embodiments. It should be noted that the vehicle can be any one of a pure electric vehicle, a hybrid vehicle, and a gasoline vehicle.

[0088] According to the vehicle of the present invention, the limiting block 2 is not easily damaged when subjected to impact, thus ensuring the limiting effect. Moreover, the limiting block 2 is small in size, which helps to save space and realizes miniaturization design, improves the practicality of the corner limiter 100, improves the overall performance of the steering system, and thus enhances the product competitiveness of the vehicle.

[0089] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A corner limiter (100), characterized in that, include: Shell (1); A limiting block (2) is rotatably mounted on the housing (1) to switch between a first state and a second state; The limiting disk (3) is located on the housing (1) and is rotatable relative to the housing (1). The limiting disk (3) is provided with a mating part (32). The limiting disk (3) is adapted to limit the two degrees of freedom of the limiting disk (3) by the mating part (32) and the limiting block (2) located in the first state or the second state.

2. The corner limiter (100) according to claim 1, characterized in that, When the limiting disk (3) rotates to the first position in the first direction, the mating part (32) is adapted to abut against the limiting block (2) in the first state to limit the rotational freedom of the limiting disk (3) in the first direction; When the limiting disk (3) rotates to the second position in the second direction, the mating part (32) is adapted to abut against the limiting block (2) in the second state to limit the rotational freedom of the limiting disk (3) in the second direction.

3. The corner limiter (100) according to claim 2, characterized in that, When the limiting disk (3) rotates toward the second direction, it pushes the limiting block (2) to switch to the second state through the mating part (32); When the limiting plate (3) rotates toward the first direction, it pushes the limiting block (2) to switch to the first state through the mating part (32).

4. The corner limiter (100) according to claim 3, characterized in that, The limiting block (2) includes a pivot portion (21), a first protrusion (22) and a second protrusion (23), the first protrusion (22) and the second protrusion (23) are disposed on the pivot portion (21), and the pivot portion (21) is rotatably disposed on the housing (1). When the limiting disk (3) rotates toward the second direction, the mating part (32) is adapted to push the first protrusion (22) so that the limiting block (2) switches to the second state; When the limiting disc (3) rotates toward the first direction, the mating part (32) is adapted to push the second protrusion (23) so that the limiting block (2) switches to the first state.

5. The corner limiter (100) according to claim 4, characterized in that, The housing (1) is provided with a limiting groove (12). One of the limiting groove (12) and the pivot part (21) is provided with the pivot column (5) and the other is provided with a pivot hole. The pivot column (5) passes through the pivot hole to rotatably install the limiting block (2) in the limiting groove (12).

6. The corner limiter (100) according to claim 2, characterized in that, The housing (1) is provided with a limiting groove (12), and the limiting block (2) is rotatably disposed in the limiting groove (12). When the limiting block (2) rotates, it is adapted to contact the inner wall of the limiting groove (12) to position the limiting block (2) in the first state or the second state.

7. The corner limiter (100) according to claim 1, characterized in that, The mating part (32) abuts against the limiting block (2) through surface contact.

8. The corner limiter (100) according to claim 7, characterized in that, In the circumferential direction of the limiting plate (3), a first abutting surface (321) and a second abutting surface (322) are formed on opposite sides of the mating part (32), and the mating part (32) is adapted to abut against the limiting block (2) through the first abutting surface (321) or the second abutting surface (322); In the direction away from the rotation axis of the limiting disk (3), the first abutment surface (321) and the second abutment surface (322) extend in a direction that approaches each other.

9. The corner limiter (100) according to claim 1, characterized in that, The limiting disk (3) further includes a disk body (33), the disk body (33) is provided with a first positioning part, and the limiting block (2) is provided with a second positioning part. The first positioning part is used to selectively cooperate with the second positioning part to limit the limiting disk (3) to the first state or the second state.

10. The corner limiter (100) according to claim 9, characterized in that, One of the first positioning part and the second positioning part is configured as a positioning protrusion (34) and the other is configured as a positioning groove (24), wherein the positioning protrusion (34) or the positioning groove (24) has an avoidance notch; When the mating part (32) separates from the limiting block (2), the positioning protrusion (34) engages with the positioning groove (24) in a limiting fit. When the mating part (32) mates with the limiting block (2), the disc part (33) avoids the limiting block (2) through the avoidance notch.

11. The corner limiter (100) according to claim 10, characterized in that, The mating part (32) is connected to the side of the disc body (33) facing the limiting block (2); and / or, the limiting block (2) is provided on one side of the disc body (33) along the thickness direction; and / or, in the radial direction of the disc body (33), the positioning protrusion (34) and the positioning groove (24) are in clearance fit, and the range of the fit clearance between the positioning protrusion (34) and the positioning groove (24) is 0.01mm-2mm; and / or, in the circumferential direction of the limiting disc (3), the opposite sides of the mating part (32) are shaped The first abutting surface (321) and the second abutting surface (322) are formed. In the first state, the first abutting surface (321) abuts against the limiting block (2). In the second state, the second abutting surface (322) abuts against the limiting block (2). In the circumferential direction of the disc body (33), the distance between the first abutting surface (321) in the first state and the second abutting surface (322) in the second state is A. The first positioning part has the avoidance notch, and the size of the avoidance notch is not less than A.

12. The corner limiter (100) according to any one of claims 1-11, characterized in that, Also includes: A drive shaft (4) passes through the housing (1) and is connected to the limiting disk (3). The drive shaft (4) is used to drive the limiting disk (3) to rotate in a first direction or a second direction.

13. The corner limiter (100) according to claim 12, characterized in that, The drive shaft (4) and the limiting disk (3) are integrally formed.

14. A steering system, characterized in that, include: The corner limiter (100) according to any one of claims 1-13.

15. A vehicle, characterized in that, include: The steering system according to claim 14.

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