Steering wheel angle limiting mechanism
By designing the steering wheel angle limit mechanism, the adjustment of the steering wheel rotation range is achieved by using the coordination of the limit ring and the limit plate, the problem of fixed rotation range of the existing steering wheel is solved and the flexibility of use is improved.
Patent Information
- Application Number
- CN202422199538.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing steering wheel has a fixed rotation range, which cannot accommodate larger or smaller angle ranges, and has poor flexibility in use.
A steering wheel angle limiting mechanism is designed, including a base, steering wheel, steering shaft and adjustment mechanism. Through the coordination of the limit ring, the first limit plate and the second limit plate, the rotation range of the steering wheel can be adjusted.
The steering wheel is adjusted in a rotation range, which improves the flexibility of use and meets the needs of different angle ranges.
Smart Images
Figure CN223045815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steering wheels, in particular to a steering wheel angle limiting mechanism. Background Art
[0002] The steering wheel is an important operating device for adjusting the direction of an automobile. Generally, the steering wheel is connected to the steering shaft through a spline, and its function is to convert the force exerted by the driver on the edge of the steering wheel into torque and then transmit it to the steering shaft.
[0003] However, the angle range that the existing steering wheel can rotate is usually fixed, and it can only rotate three circles (one and a half circles to the right and one and a half circles to the left), so that the rotatable range of the steering wheel has great limitations and cannot adapt to a larger or smaller angle range, and the flexibility of use is poor. Summary of the Utility Model
[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a steering wheel angle limiting mechanism to solve the technical problem that the rotation range of the steering wheel in the prior art cannot be adjusted.
[0005] The utility model is implemented by adopting the following technical scheme: a steering wheel angle limiting mechanism, comprising a base, a steering wheel, a steering shaft and an adjusting mechanism;
[0006] The steering wheel is rotatably arranged on the base;
[0007] The steering shaft is connected to the steering wheel, the outer side wall of the steering shaft has a thread, a limiting ring is sleeved on the steering shaft, and the limiting ring is threadedly connected to the steering shaft;
[0008] The adjusting mechanism is arranged on the base, and the adjusting mechanism comprises a knob, a first gear, a first rack, a second rack, a first limiting plate and a second limiting plate. The knob is connected to the first gear, the first rack and the second rack are both meshed with the first gear, and the first rack and the second rack are oppositely arranged. The first limiting plate is connected to the first rack, and the second limiting plate is connected to the second rack;
[0009] When the steering wheel rotates, the upper end of the limiting ring can abut against the first limiting plate, and the lower end of the limiting ring can abut against the second limiting plate.
[0010] In a possible implementation manner, a first limiting hole is arranged on the first rack, a first limiting post is arranged on the second limiting plate, and the first limiting post extends into the first limiting hole.
[0011] In a possible implementation, a second limit hole is provided on the second rack, a second limit post is provided on the first limit plate, and the second limit post extends into the second limit hole.
[0012] In a possible implementation, the adjusting mechanism further includes a second gear, a third gear, a transmission shaft, a fourth gear, and a fifth gear. The knob is coaxially connected to the second gear. The second gear meshes with the third gear. One end of the transmission shaft is connected to the third gear, the other end of the transmission shaft is connected to the fourth gear, the fourth gear meshes with the fifth gear, and the fifth gear is coaxially connected to the first gear.
[0013] In a possible implementation, a fixing frame is provided on the base, the adjusting mechanism is arranged on the fixing frame, a shaft seat is provided on the fixing frame, and the transmission shaft is arranged on the shaft seat.
[0014] In a possible implementation, a fixing member is further provided on the fixing frame. The fixing member is provided with a rotating shaft. One end of the rotating shaft is rotatably connected to the shaft seat, and both the first gear and the fifth gear are sleeved on the rotating shaft.
[0015] In a possible implementation, a first guiding block and a second guiding block are further provided on the fixing frame. The first rack passes through the first guiding block, and the second rack passes through the second guiding block.
[0016] In a possible implementation, a guiding post is provided on the base, and the limiting ring is slidably connected to the guiding post.
[0017] In a possible implementation, the adjusting mechanism further includes a limiting pin. The first limit plate is slidably connected to the upper end of the limiting pin, and the second limit plate is slidably connected to the lower end of the limiting pin.
[0018] In a possible implementation, an elastic member is sleeved on the limiting pin. One end of the elastic member abuts against the first limit plate, and the other end of the elastic member abuts against the second limit plate.
[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the user rotates the steering wheel, the steering wheel drives the steering shaft to rotate together. When the steering shaft rotates, it drives the limiting ring to move up and down. When the limiting ring abuts against the first limit plate or the second limit plate, it indicates that the steering wheel has rotated to the limit distance. When the user rotates the knob, the knob drives the first gear to rotate. The first gear drives the first rack to rise or fall, and at the same time drives the second rack to fall or rise, thereby expanding or reducing the distance between the first limit plate and the second limit plate, and further enabling the rotation range of the steering wheel to be adjusted, improving the flexibility of use of the steering wheel. Brief Description of the Drawings
[0020] Figure 1 This is a schematic structural diagram of the steering wheel angle limiting mechanism of the present utility model;
[0021] Figure 2 This is a schematic structural diagram of the steering wheel angle limiting mechanism of the present utility model after hiding the base;
[0022] Figure 3 This is a schematic structural diagram of the adjusting mechanism in the steering wheel angle limiting mechanism of the present utility model;
[0023] Figure 4 This is a partial schematic structural diagram of the adjusting mechanism in the steering wheel angle limiting mechanism of the present utility model.
[0024] In the figure:
[0025] 100, base; 101, steering wheel; 102, steering shaft; 103, limiting ring; 104, guide post;
[0026] 200, knob; 201, first gear; 202, second gear; 203, third gear; 204, transmission shaft; 205, fourth gear; 206, fifth gear; 207, bushing;
[0027] 300, first rack; 301, first limit plate; 302, first limit hole; 303, second limit post; 304, first guide block;
[0028] 400, second rack; 401, second limit plate; 402, second limit hole; 403, first limit post; 404, second guide block;
[0029] 500, fixing bracket; 501, shaft seat; 502, fixing member; 503, rotating shaft;
[0030] 600, limit pin; 601, elastic member. Detailed Description of the Preferred Embodiment
[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0032] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.
[0033] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0034] Such as Figures 1-4An angle limiting mechanism for a steering wheel 101 as shown includes a base 100, a steering wheel 101, a steering shaft 102, and an adjusting mechanism; the steering wheel 101 is rotatably arranged on the base 100; the steering shaft 102 is connected to the steering wheel 101, the outer side wall of the steering shaft 102 has a thread, a limiting ring 103 is sleeved on the steering shaft 102, and the limiting ring 103 is threadedly connected to the steering shaft 102; the adjusting mechanism is arranged on the base 100, and the adjusting mechanism includes a knob 200, a first gear 201, a first rack 300, a second rack 400, a first limiting plate 301, and a second limiting plate 401. The knob 200 is connected to the first gear 201, both the first rack 300 and the second rack 400 are engaged with the first gear 201, and the first rack 300 and the second rack 400 are arranged oppositely. The first limiting plate 301 is connected to the first rack 300, and the second limiting plate 401 is connected to the second rack 400; when the steering wheel 101 rotates, the upper end of the limiting ring 103 can abut against the first limiting plate 301, and the lower end of the limiting ring 103 can abut against the second limiting plate 401. It should be noted that the steering shaft 102 is rotatably arranged relative to the base 100, and a thread is also provided on the inner side wall of the limiting ring 103, so that the limiting ring 103 is threadedly connected to the steering shaft 102. The first rack 300 and the second rack 400 are respectively arranged on both sides of the first gear 201. The first limiting plate 301 is fixedly connected to the upper end of the first rack 300, and the second limiting plate 401 is fixedly connected to the lower end of the second rack 400. The ends of the first limiting plate 301 and the second limiting plate 401 close to the steering shaft 102 are both arc-shaped, so that the first limiting plate 301 and the second limiting plate 401 can be closer to the steering shaft 102, thereby increasing the contact area between the first limiting plate 301 and the second limiting plate 401 and the limiting ring 103, which is beneficial to improving the overall stability of the mechanism; specifically, when the user rotates the steering wheel 101, the steering wheel 101 drives the steering shaft 102 to rotate together. When the steering shaft 102 rotates, it drives the limiting ring 103 to move up and down. When the limiting ring 103 abuts against the first limiting plate 301 or the second limiting plate 401, it indicates that the steering wheel 101 has rotated to the limit distance. When the user rotates the knob 200, the knob 200 drives the first gear 201 to rotate. The first gear 201 drives the first rack 300 to rise or fall, and at the same time drives the second rack 400 to fall or rise, thereby expanding or reducing the distance between the first limiting plate 301 and the second limiting plate 401, and further making the rotation range of the steering wheel 101 adjustable, improving the use flexibility of the steering wheel 101.
[0035] Please refer to Figure 4, in a possible implementation, the first rack 300 is provided with a first limiting hole 302, and the second limiting plate 401 is provided with a first limiting post 403, and the first limiting post 403 extends into the first limiting hole 302. It should be noted that the first limiting hole 302 is a long hole, the first limiting hole 302 extends along the length direction of the first rack 300, the first limiting hole 302 is arranged at the lower end of the first rack 300, the first limiting post 403 extends into the first limiting hole 302, when the second limiting plate 401 moves, the first limiting post 403 moves in the first limiting hole 302, when the second limiting plate 401 rises or falls to the limit position, the first limiting post 403 abuts against the upper wall or the lower wall of the first limiting hole 302, so as to limit the second limiting plate 401 and prevent the second limiting plate 401 from moving out of the limit distance, which is beneficial to improving the stability of the adjusting mechanism.
[0036] Please refer to Figure 4 , in a possible implementation, the second rack 400 is provided with a second limiting hole 402, and the first limiting plate 301 is provided with a second limiting post 303, and the second limiting post 303 extends into the second limiting hole 402. It should be noted that the second limiting hole 402 is also a long hole, the second limiting hole 402 extends along the length direction of the second rack 400, the second limiting hole 402 is arranged at the upper end of the second rack 400, the second limiting post 303 extends into the second limiting hole 402, when the first limiting plate 301 moves, the second limiting post 303 moves in the second limiting hole 402, when the first limiting plate 301 rises or falls to the limit position, the second limiting post 303 abuts against the upper wall or the lower wall of the second limiting hole 402, so as to limit the first limiting plate 301 and prevent the first limiting plate 301 from moving out of the limit distance, which is beneficial to improving the stability of the adjusting mechanism.
[0037] Please refer to Figure 1 , Figure 3 and Figure 4, in a possible implementation, the adjusting mechanism further includes a second gear 202, a third gear 203, a transmission shaft 204, a fourth gear 205, and a fifth gear 206. The knob 200 is coaxially connected to the second gear 202. The second gear 202 meshes with the third gear 203. The third gear 203 is connected to one end of the transmission shaft 204. The other end of the transmission shaft 204 is connected to the fourth gear 205. The fourth gear 205 meshes with the fifth gear 206. The fifth gear 206 is coaxially connected to the first gear 201. It is easy to understand that the knob 200 and the first gear 201 are not directly connected, but indirectly connected through gear transmission. When the user rotates the knob 200, the second gear 202 rotates with the knob 200. The second gear 202 drives the third gear 203 to rotate. The third gear 203 drives the transmission shaft 204 to rotate. The transmission shaft 204 drives the fourth gear 205 to rotate. The fourth gear 205 drives the fifth gear 206 to rotate. The fifth gear 206 drives the first gear 201 to rotate. The third gear 203 and the fourth gear 205 are respectively sleeved on both ends of the transmission shaft 204. Gear transmission has the characteristics of high transmission efficiency, accurate transmission ratio, long service life, large transmission power, large speed ratio range, high transmission accuracy, and compact structure. Therefore, by setting the second gear 202, the third gear 203, the transmission shaft 204, the fourth gear 205, and the fifth gear 206 to adjust the transmission ratio between the knob 200 and the first gear 201, it is beneficial to improve the service life and stability of the adjusting mechanism.
[0038] Please refer to Figure 3 , in a possible implementation, a fixing frame 500 is provided on the base 100. The adjusting mechanism is arranged on the fixing frame 500. A shaft seat 501 is provided on the fixing frame 500. The transmission shaft 204 is arranged on the shaft seat 501. It is easy to understand that the setting of the fixing frame 500 can provide an installation basis for the adjusting mechanism. The fixing frame 500 is L-shaped. The knob 200 is rotatably arranged on the side wall of the fixing frame 500. The transmission shaft 204 passes through the shaft seat 501. In addition, a shaft sleeve 207 is sleeved on the transmission shaft 204. The transmission shaft 204 is rotatably connected to the shaft sleeve 207. The setting of the shaft sleeve 207 is beneficial to improve the rotation stability of the transmission shaft 204. The setting of the shaft seat 501 can support the transmission shaft 204.
[0039] Please refer to Figure 3, in a possible implementation, a fixing member 502 is further provided on the fixing frame 500. The fixing member 502 is provided with a rotating shaft 503. One end of the rotating shaft 503 is rotatably connected to the shaft seat 501. The first gear 201 and the fifth gear 206 are both sleeved on the rotating shaft 503. It is easy to understand that the setting of the fixing member 502 can support the first gear 201 and the fifth gear 206 and provide an installation basis for rotation. Since the first gear 201 and the fifth gear 206 are both sleeved on the rotating shaft 503, when the fourth gear 205 drives the fifth gear 206 to rotate, the rotating shaft 503 rotates together with the fifth gear 206, and then the first gear 201 can be rotated.
[0040] Please refer to Figure 3 , in a possible implementation, a first guiding block 304 and a second guiding block 404 are further provided on the fixing frame 500. The first rack 300 is passed through the first guiding block 304, and the second rack 400 is passed through the second guiding block 404. It should be noted that chutes are provided on both the first guiding block 304 and the second guiding block 404. The first rack 300 can be slidably arranged in the chute on the first guiding block 304, and the second rack 400 can be slidably arranged in the chute on the second guiding block 404. The settings of the first guiding block 304 and the second guiding block 404 can guide the first rack 300 and the second rack 400, which is beneficial to improving the movement stability of the first rack 300 and the second rack 400.
[0041] Please refer to Figure 2 , in a possible implementation, a guiding column 104 is provided on the base 100. The limiting ring 103 is slidably connected to the guiding column 104. It is easy to understand that the limiting ring 103 is threadedly connected to the steering shaft 102. When the steering shaft 102 rotates, the limiting ring 103 moves up and down along the steering shaft 102. The setting of the guiding column 104 can guide the limiting ring 103 to prevent the limiting ring 103 from shifting during movement, so that the threads on the limiting ring 103 and the steering shaft 102 are misaligned, affecting the service life of the limiting ring 103 and the steering shaft 102. The setting of the guiding column 104 is beneficial to improving the movement stability of the limiting ring 103.
[0042] Please refer to Figure 3 and Figure 4 , in a possible implementation, the adjusting mechanism further includes a limiting pin 600. The first limiting plate 301 is slidably connected to the upper end of the limiting pin 600, and the second limiting plate 401 is slidably connected to the lower end of the limiting pin 600. It is easy to understand that the limiting pin 600 can connect the first limiting plate 301 and the second limiting plate 401 and limit the movable distance of the first limiting plate 301 and the second limiting plate 401 to prevent the first limiting plate 301 and the second limiting plate 401 from exceeding their movable ranges.
[0043] Please refer to Figure 3 and Figure 4 , in a possible implementation manner, an elastic member 601 is sleeved on the limit pin 600. One end of the elastic member 601 abuts against the first limit plate 301, and the other end of the elastic member 601 abuts against the second limit plate 401. It is easy to understand that the elastic member 601 is a spring. The setting of the elastic member 601 can play a buffering role in the movement of the first limit plate 301 and the second limit plate 401, which is beneficial to improving the movement stability of the first limit plate 301 and the second limit plate 401.
[0044] The above implementation manner is only the preferred implementation manner of the present utility model, and cannot be used to limit the protection scope of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present utility model belong to the protection scope required by the present utility model.
Claims
1. A steering wheel angle limiting mechanism, characterized in that: It includes a base, a steering wheel, a steering shaft and an adjustment mechanism; The steering wheel is rotatably arranged on the base; The steering shaft is connected to the steering wheel, the outer wall of the steering shaft is provided with a thread, a limiting ring is sleeved on the steering shaft, and the limiting ring is threadedly connected to the steering shaft; The adjustment mechanism is arranged on the base, and the adjustment mechanism includes a knob, a first gear, a first rack, a second rack, a first limit plate and a second limit plate, the knob is connected to the first gear, the first rack and the second rack are both meshed with the first gear, and the first rack and the second rack are arranged opposite to each other, the first limit plate is connected to the first rack, and the second limit plate is connected to the second rack; When the steering wheel rotates, the upper end of the limiting ring may abut against the first limiting plate, and the lower end of the limiting ring may abut against the second limiting plate.
2. The steering wheel angle limiting mechanism according to claim 1, characterized in that: The first rack is provided with a first limiting hole, the second limiting plate is provided with a first limiting column, and the first limiting column extends into the first limiting hole.
3. The steering wheel angle limiting mechanism according to claim 1, characterized in that: The second rack is provided with a second limiting hole, the first limiting plate is provided with a second limiting column, and the second limiting column extends into the second limiting hole.
4. The steering wheel angle limiting mechanism according to claim 1, characterized in that: The adjustment mechanism also includes a second gear, a third gear, a transmission shaft, a fourth gear and a fifth gear. The knob is coaxially connected to the second gear, the second gear is meshed with the third gear, the third gear is connected to one end of the transmission shaft, the other end of the transmission shaft is connected to the fourth gear, the fourth gear is meshed with the fifth gear, and the fifth gear is coaxially connected to the first gear.
5. The steering wheel angle limiting mechanism according to claim 4, characterized in that: A fixing frame is arranged on the base, the adjusting mechanism is arranged on the fixing frame, an axle seat is arranged on the fixing frame, and the transmission shaft is arranged on the axle seat.
6. The steering wheel angle limiting mechanism according to claim 5, characterized in that: The fixing frame is also provided with a fixing piece, and the fixing piece is provided with a rotating shaft, one end of the rotating shaft is rotatably connected to the shaft seat, and the first gear and the fifth gear are both sleeved on the rotating shaft.
7. The steering wheel angle limiting mechanism according to claim 5, characterized in that: The fixing frame is also provided with a first guide block and a second guide block, the first rack is passed through the first guide block, and the second rack is passed through the second guide block.
8. The steering wheel angle limiting mechanism according to claim 1, characterized in that: A guide column is arranged on the base, and the limiting ring is slidably connected to the guide column.
9. The steering wheel angle limiting mechanism according to claim 1, characterized in that: The adjustment mechanism also includes a limit pin, the first limit plate is slidably connected to the upper end of the limit pin, and the second limit plate is slidably connected to the lower end of the limit pin.
10. The steering wheel angle limiting mechanism according to claim 9, characterized in that: An elastic member is sleeved on the limiting pin, one end of the elastic member abuts against the first limiting plate, and the other end of the elastic member abuts against the second limiting plate.