Steering return mechanism and automobile

Abstract

The invention discloses a steering return mechanism, and relates to the field of automobiles and automobile parts, an outer shell is provided with an extension part with the tail end extending in the radial direction of a steering wheel, and a handle assembly is rotationally installed on the outer shell through a first rotating shaft and extends out of the tail end of the extension part; when the handle is shifted, the handle assembly rotates around the first rotating shaft, the shifting block on the handle assembly drives the return rotating body to rotate around the second rotating shaft to a triggering position, and when the return triggering body rotates and resets along with the steering wheel, the return triggering body triggers the first steering return block or the second steering return block, so that the return assembly and the handle assembly are reset. And the short-stroke handle can automatically return along with the resetting of the steering wheel.

Description

Technical Field

[0001] The present invention relates to the field of automobiles and automobile parts, and in particular to a steering return mechanism and an automobile. Background Art

[0002] When the driver drives the vehicle to turn or change lanes, he turns on the turn signal through the steering handle. When the vehicle switches from turning to straight motion, the steering wheel turns a certain degree and returns to the center. As the steering wheel returns to the center, the vehicle automatically turns off the turn signal. The automatic reset of the steering handle is achieved by the vehicle return system.

[0003] The turn signal can be turned off in the following ways: when the steering handle has a fixed steering gear, it can be achieved through a mechanical return system; when the steering handle has no fixed steering gear, that is, when it is an automatic return handle, it can be achieved electronically.

[0004] In current combination switches, steering handles are operated by rotating the entire handle, which swings around its base. The return mechanism is relatively mature. However, turning the entire handle to trigger steering requires a large travel. However, with the emergence of new interior designs, traditional steering handle structures are unable to meet the requirements of small travels, and the current mature steering return mechanism is no longer able to achieve this function.

[0005] For those skilled in the art, how to achieve the automatic return of a short-stroke handle is a technical problem that needs to be solved at present. Summary of the Invention

[0006] The core of the present invention is to provide a steering return mechanism. The handle assembly and the return assembly cooperate with each other to realize the automatic return of the short-stroke handle. The specific scheme is as follows:

[0007] A steering return mechanism, comprising:

[0008] an outer shell having an extension portion formed thereon, wherein a distal end of the extension portion extends in a radial direction of the steering wheel;

[0009] A handle assembly is rotatably mounted on the extension portion via a first rotating shaft and partially extends from the end of the extension portion; the handle assembly is provided with a toggle block;

[0010] The return assembly includes a return rotor, a first steering return block, a second steering return block, and a torsion spring; the return rotor is rotatably mounted on the outer shell around the second rotation axis; the first steering return block and the second steering return block are respectively rotatably mounted on the return rotor, and the torsion springs are respectively provided at the rotation axes of the two; the return rotor is provided with a toggle groove, and the toggle block is inserted into the toggle groove;

[0011] The return trigger body can rotate with the steering wheel;

[0012] Among them, when the handle assembly is toggled and rotated, the return assembly is driven to rotate to the trigger position through the cooperation of the toggle block and the toggle slot; when the return trigger body is reset as the steering wheel rotates, it can trigger the first steering return block or the second steering return block to reset the return assembly and the handle assembly.

[0013] Optionally, the return rotating body includes a return rotating body, a return fork and a pressing spring, the return rotating body and the return fork are slidably assembled with each other, and the return rotating body and the return fork are pressed by the pressing spring;

[0014] When forced to return, the return rotating body and the return fork slide and misalign with each other.

[0015] Optionally, a sliding hole is provided on the return fork, the length direction of the sliding hole being perpendicular to the elastic force direction of the pressing spring; a pressing notch is provided in the middle of the side wall of the sliding hole;

[0016] The second rotating shaft is arranged on the return rotating body;

[0017] The pressing spring presses the second rotating shaft against the pressing notch.

[0018] Optionally, the return fork is provided with two limiting side walls, and the return rotating body is provided with a limiting block;

[0019] The limiting block is slidably mounted between the two limiting side walls.

[0020] Optionally, the return fork is provided with two limit plates, and the return rotating body is provided with a supporting block;

[0021] The supporting block is used to carry and limit the limiting plate.

[0022] Optionally, the return triggering body is an arc-shaped plate, and the distance between the two ends of the arc-shaped plate is greater than the distance between the first steering return block and the second steering return block;

[0023] The first steering return block and the second steering return block are respectively provided with a sharp corner matched with the end of the return triggering body.

[0024] Optionally, a push pin is slidably mounted on the handle assembly, and an elastic thrust is applied to the push pin via a push spring;

[0025] A curved surface block is fixedly mounted on the outer shell, and the end of the ejector pin is elastically pressed against the curved surface block. The curved surface block is used to limit the handle assembly to a trigger position.

[0026] Optionally, the handle assembly includes a handle and a coupling, and the toggle block is provided on the coupling;

[0027] The handle is partially exposed at the end of the extension; the handle and the coupling are connected via a third rotating shaft; an angle exists between the first rotating shaft and the third rotating shaft;

[0028] The coupling is rotatably mounted on the outer shell via a first rotating shaft.

[0029] Optionally, the outer shell includes an upper shell and a lower shell, and the upper shell and the lower shell can be snap-fitted and fixed.

[0030] The present invention also provides an automobile, comprising any one of the above-mentioned steering return mechanisms.

[0031] The present invention provides a steering return mechanism, wherein an outer shell is provided with an extension portion, the end of which extends radially along a steering wheel, and a handle assembly is rotatably mounted on the outer shell via a first rotating shaft and extends out from the end of the extension portion; when the handle is toggled, the handle assembly rotates around the first rotating shaft, and a toggle block thereon drives a return rotating body to rotate around a second rotating shaft to a trigger position; when the return trigger body is reset as the steering wheel rotates, the return trigger body triggers the first steering return block or the second steering return block, so that the return assembly and the handle assembly are reset, thereby realizing that the short-stroke handle automatically returns as the steering wheel is reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is an exploded schematic diagram of the steering return mechanism of the present invention;

[0034] Figure 2A is a schematic diagram of the handle assembly in a left-steering state;

[0035] Figure 2B This is a schematic diagram of the handle assembly in an untriggered state;

[0036] Figure 3 It is a partial longitudinal sectional view of the steering return mechanism of the present invention;

[0037] Figure 4 This is an exploded view of the return assembly;

[0038] Figure 5 This is the assembly drawing of the return component.

[0039] The diagram includes:

[0040] Outer shell 10; curved block 101; extension portion 110; upper shell 120; lower shell 130;

[0041] Handle assembly 20; first rotating shaft 201; toggle block 202; third rotating shaft 203; handle 210; coupling 220; ejector pin 230; ejector spring 240;

[0042] Return assembly 30; return rotor 310; return rotor 311; toggle slot 3111; second rotating shaft 3112; limit block 3113; support block 3114; return fork 312; sliding hole 3121; pressure notch 3122; limit side wall 3123; limit plate 3124; pressure spring 313; first steering return block 320; first steering column 321; first stop 322; second steering return block 330; second steering column 331; second stop 332; torsion spring 340;

[0043] Return trigger body 40. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solution of the present invention, the steering return mechanism and the automobile of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0045] The steering return mechanism of the present invention is applied to a vehicle cockpit. After the handle is triggered, the handle can be automatically reset as the steering wheel is reset, thereby realizing automatic return of the handle after the steering is triggered.

[0046] Combine Figure 1 As shown, the present invention provides a steering return mechanism, including an outer shell 10, a handle assembly 20, a return assembly 30, a return trigger body 40 and other structures. The outer shell 10 is fixed on the vehicle cab, and an avoidance space is reserved in the outer shell 10 for inserting the steering wheel and steering column.

[0047] The outer shell 10 is a hollow structure, within which other components are mounted. An extension 110 is provided. This portion of the outer shell 10 extends radially along the steering wheel, giving the outer shell 10 a radially convex shape. The interior of the extension 110 accommodates the corresponding components, and the connection between the extension 110 and the main body of the outer shell 10 maintains a smooth transition.

[0048] The handle assembly 20 is rotatably mounted to the extension portion 110 via a first rotation axis 201. The handle assembly 20 and the outer shell 10 form a hinged assembly. The distal end of the handle assembly 20 can partially extend from the distal end of the extension portion 110. The extended portion of the handle assembly 20 is operable by the user to rotate the handle assembly 20 about the first rotation axis 201. The handle assembly 20 is mounted to the extension portion 110. When triggering the function, the user's hand rotates the exposed portion of the handle assembly 20 to a smaller extent, achieving a short-stroke trigger.

[0049] The handle assembly 20 is provided with a toggle block 202 , which is located at the inner end of the handle assembly 20 . When the handle assembly 20 rotates, the toggle block 202 further drives the return assembly 30 .

[0050] Combine Figure 5 As shown, the return assembly 30 is mounted on the main portion of the outer housing 10 and is not located within the extension 110. The return assembly 30 includes a return rotor 310, a first steering return block 320, a second steering return block 330, and a torsion spring 340. The return rotor 310 is configured to cooperate with the toggle block 202. The return rotor 310 is assembled to the outer housing 10 and rotates about a second rotation axis 3112. When the handle assembly 20 is rotated, the toggle block 202 drives the return rotor 310 to rotate about the second rotation axis 3112. The second rotation axis 3112 can be parallel to the first rotation axis 201 or at a certain angle to the first rotation axis 201.

[0051] The first steering return block 320 and the second steering return block 330 are respectively rotatably mounted on the return rotating body 310, and are combined with Figure 5 As shown, the first steering return block 320 is rotatably assembled to the return rotor 310 via the first steering column 321, and the second steering return block 330 is rotatably assembled to the return rotor 310 via the second steering column 331. The first steering column 321 and the second steering column 331 can be arranged on the return rotor 310.

[0052] Torsion springs 340 are respectively provided at the rotation axes of the first steering return block 320 and the second steering return block 330. Specifically, the torsion springs 340 can be respectively mounted on the first steering column 321 and the second steering column 331. The two ends of the torsion spring 340 corresponding to the first steering column 321 respectively press against the first steering column 321 and the return rotor 310, while the two ends of the corresponding torsion spring 340 respectively press against the second steering column 331 and the return rotor 310. The torsion springs 340 can cause the first steering return block 320 and the second steering return block 330 to have a tendency to rotate in a certain direction. The torsion springs 340 apply different directions of torque to the first steering return block 320 and the second steering return block 330.

[0053] Combine Figure 5As shown, the torsion spring 340 corresponding to the first steering return block 320 creates a clockwise rotational tendency for the first steering return block 320, while the torsion spring 340 corresponding to the second steering return block 330 creates a counterclockwise rotational tendency for the second steering return block 330. A first stopper 322 is provided on the first steering return block 320 to cooperate with the return rotor 310 to limit the maximum position of rotation of the first steering return block 320 by the torsion spring 340; a second stopper 332 is provided on the second steering return block 330 to cooperate with the return rotor 310 to limit the maximum position of rotation of the second steering return block 330 by the torsion spring 340.

[0054] Combine Figure 4 As shown, the return rotor 310 is provided with a toggle slot 3111, into which the toggle block 202 is inserted. The toggle block 202 is inserted into the toggle slot 3111 to drive the return rotor 310 to rotate about the second rotation axis 3112. The toggle slot 3111 is a kidney-shaped slot. When the handle assembly 20 is toggled in different directions, the toggle block 202 moves in different directions at both ends of the kidney-shaped slot.

[0055] The return triggering body 40 can rotate along with the steering wheel, and the return triggering body 40 can cooperate with the first steering return block 320 and the second steering return block 330 .

[0056] When the handle assembly 20 is rotated by being turned, the handle assembly 20 rotates around the first rotating shaft 201, and the return assembly 30 is driven to rotate to the trigger position through the cooperation of the toggle block 202 and the toggle slot 3111; when the return trigger body 40 is reset with the rotation of the steering wheel, it can trigger the first steering return block 320 or the second steering return block 330 to reset the return assembly 30 and the handle assembly 20.

[0057] Figure 2B The handle assembly 20 is shown in a state where it is not toggled. Figure 2A As shown, the exposed portion of the handle assembly 20 is moved downward (triggering the left turn signal), causing the handle assembly 20 to rotate counterclockwise about the first rotation axis 201, while the return rotor 310 rotates clockwise. After triggering, the handle assembly 20 and the return rotor 310 remain in the triggered position. The return rotor 310 then drives the second steering return block 330 into the motion path of the return triggering body 40. As the return triggering body 40 turns left (counterclockwise) as the steering wheel turns, the return triggering body 40 squeezes the second steering return block 330, which in turn compresses the torsion spring 340. At this point, the left turn signal remains triggered. When the return triggering body 40 returns to its normal position as the steering wheel turns right (clockwise), the upper end of the return triggering body 40 pushes the second steering return block 330, thereby returning the return rotor 310 to its original position.

[0058] When the exposed portion of the handle assembly 20 is moved upward (to trigger the right turn signal), the handle assembly 20 rotates clockwise around the first rotation axis 201, and the return rotor 310 rotates counterclockwise. After triggering, the handle assembly 20 and the return rotor 310 remain in the triggered position. At this time, the return rotor 310 drives the first steering return block 320 into the motion path of the return trigger body 40. When the return trigger body 40 turns right (clockwise) with the steering wheel, the return trigger body 40 squeezes the first steering return block 320, which compresses the torsion spring 340. At this time, the right turn signal remains triggered. When the return trigger body 40 turns left (counterclockwise) with the steering wheel to return to the normal direction, the lower end of the return trigger body 40 pushes the first steering return block 320, thereby returning the return rotor 310 to its original position.

[0059] The present invention can realize that the short-stroke handle automatically returns to its original position as the steering wheel is reset, thus meeting the new short-stroke handle reset requirement.

[0060] On the basis of the above scheme, combined with Figure 3 、 Figure 4 As shown, the return rotor 310 of the present invention includes a return rotor 311, a return fork 312, and a pressure spring 313. The return rotor 311 and the return fork 312 are two independent components that are slidably assembled with each other, allowing sliding displacement to occur between the return rotor 311 and the return fork 312. The return rotor 311 and the return fork 312 are pressed against each other by the pressure spring 313. Under the elastic force of the pressure spring 313, the return rotor 311 and the return fork 312 maintain close contact.

[0061] When forced to return, the return rotor 311 and the return fork 312 slide and misalign with each other to avoid damage. Forced return means that when the handle assembly 20 is in the steering gear and external force is applied, the handle assembly 20 is always in the steering gear; the return trigger body 40 drives the first steering return block 320 or the second steering return block 330 back to the closed gear. The present invention is designed by separating the return rotor 311 and the return fork 312, and pressing them together through the top pressure spring 313. When forced to return, the return trigger body 40 contacts the first steering return block 320 or the second steering return block 330, thereby driving the return fork 312 to compress the top pressure spring 313, and the return fork 312 and the return rotor 311 slide and misalign with each other, without damaging any related parts. When the forced reset is released, under the elastic force of the top pressure spring 313, the return rotor 311 and the return fork 312 return to their original positions.

[0062] Combine Figure 4As shown, the return fork 312 is provided with a sliding hole 3121. The sliding hole 3121 is a waist-shaped hole, and its length is perpendicular to the direction of the elastic force of the pressure spring 313. A pressure notch 3122 is provided in the middle of the side wall of the sliding hole 3121. The wall surface of the pressure notch 3122 matches the outer surface of the second rotating shaft 3112. The pressure spring 313 presses the second rotating shaft 3112 against the pressure notch 3122. Under the elastic force of the pressure spring 313, the second rotating shaft 3112 can be locked into the pressure notch 3122. When forced return is not occurring, the return rotating body 311 and the return fork 312 maintain synchronous motion and rotate around the second rotating shaft 3112.

[0063] Specifically, the second rotating shaft 3112 is provided on the return rotating body 311 and is a columnar structure protruding from the upper and lower surfaces of the return rotating body 311 . Both ends of the second rotating shaft 3112 respectively form a rotational fit with the outer shell 10 .

[0064] Combine Figure 4 As shown, in a specific embodiment, the return fork 312 is provided with two limiting side walls 3123, which are disposed on the lower surface of the return fork 312. The return rotator 311 is provided with a limiting block 3113, which is disposed on the lower surface of the return rotator 311. The limiting block 3113 is slidably engaged between the two limiting side walls 3123, allowing the return fork 312 and the return rotator 311 to slide relative to each other.

[0065] Combine Figure 4 As shown, the return fork 312 is equipped with two limit plates 3124, which extend laterally and are located on top of the limit side walls 3123. The return rotator 311 is equipped with a support block 3114, which extends laterally and is located on the side wall of the limit block 3113. The support block 3114 is used to support the limit plates 3124 and limit them, preventing the return rotator 311 and the return fork 312 from separating from each other.

[0066] Combine Figure 2B As shown, the return trigger body 40 involved in the present invention is a section of arc-shaped plate, and the distance between the two ends of the arc-shaped plate is greater than the distance between the first steering return block 320 and the second steering return block 330; the first steering return block 320 and the second steering return block 330 are respectively provided with sharp corners that cooperate with the end of the return trigger body 40, and the sharp corners form an acute angle. When the return trigger body 40 returns, the end of the return trigger body 40 can cooperate with the sharp corners of the first steering return block 320 or the second steering return block 330 to press and contact, apply thrust, and thus reset the return rotating body 310.

[0067] Based on any of the above technical solutions and their combination, Figure 1 As shown, a push pin 230 is slidably mounted on the handle assembly 20, and an elastic thrust is applied to the push pin 230 by a push spring 240, allowing the push pin 230 to translate linearly relative to the handle assembly 20. A curved block 101 is fixedly mounted on the outer shell 10. Under the elastic force of the push spring 240, the end of the push pin 230 is elastically pressed against the curved block 101. The curved block 101 and the push pin 230 cooperate with each other to limit the handle assembly 20 to a trigger position. That is, when the handle assembly 20 is rotated a certain angle around the first rotation axis 201 by a certain angle, it always remains in the trigger position in the absence of an external triggering force. For example, when the left turn signal or the right turn signal is turned on, the turn signal always remains on until it is reset.

[0068] Combine Figure 1 As shown, the handle assembly 20 includes a handle 210 and a coupling 220. The coupling 220 is rotatably mounted on the outer shell 10 via a first rotating shaft 201. The handle 210 and the coupling 220 are connected via a third rotating shaft 203. There is an angle between the first rotating shaft 201 and the third rotating shaft 203, so the entire handle 210 can rotate around two different rotating shafts.

[0069] Part of the handle 210 is exposed at the end of the extension portion 110, and the exposed portion of the handle 210 can be moved by the user's hand; the handle 210 and the coupling 220 can rotate synchronously around the first rotation axis 201 relative to the outer shell 10, and the handle 210 can rotate around the third rotation axis 203 relative to the coupling 220.

[0070] The toggle block 202 is arranged on the coupling 220. Only when the handle 210 and the coupling 220 rotate synchronously relative to the outer shell 10 around the first rotation axis 201, the coupling 220 drives the toggle block 202 to rotate, thereby driving the return rotating body 310 to rotate.

[0071] Combine Figure 1 As shown, the outer shell 10 of the present invention includes an upper shell 120 and a lower shell 130 , which are assembled by snap fastening to form a cavity. The upper shell 120 and the lower shell 130 respectively include a portion of the extension 110 .

[0072] The present invention also provides a car, including the above-mentioned steering return mechanism, which can achieve the same technical effect. For other parts of the car, please refer to the existing technology and the present invention will not elaborate on them.

[0073] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steering return mechanism, characterized in that: include: An outer shell (10) is provided with an extension portion (110), wherein the distal end of the extension portion (110) extends in the radial direction of the steering wheel; A handle assembly (20) is rotatably mounted on the extension portion (110) via a first rotating shaft (201) and partially extends from the end of the extension portion (110); the handle assembly (20) is provided with a toggle block (202); The return assembly (30) comprises a return rotating body (310), a first steering return block (320), a second steering return block (330), and a torsion spring (340); the return rotating body (310) is rotatably mounted on the outer shell (10) around a second rotation axis (3112); the first steering return block (320) and the second steering return block (330) are respectively rotatably mounted on the return rotating body (310), and the torsion spring (340) is respectively provided at the rotation axis of the two; the return rotating body (310) is provided with a toggle groove (3111), and the toggle block (202) is fitted into the toggle groove (3111); A return trigger body (40) capable of rotating with the steering wheel; When the handle assembly (20) is rotated by being toggled, the toggle block (202) cooperates with the toggle slot (3111) to drive the return assembly (30) to rotate to a trigger position; when the return trigger body (40) is reset as the steering wheel rotates, the first steering return block (320) or the second steering return block (330) can be triggered to reset the return assembly (30) and the handle assembly (20).

2. The steering return mechanism according to claim 1, characterized in that: The return rotating body (310) comprises a return rotating body (311), a return shift fork (312) and a pressing spring (313); the return rotating body (311) and the return shift fork (312) are slidably assembled with each other, and the return rotating body (311) and the return shift fork (312) are pressed by the pressing spring (313); When forced to return, the return rotating body (311) and the return shift fork (312) slide and misalign with each other.

3. The steering return mechanism according to claim 2, characterized in that: A sliding hole (3121) is provided on the return fork (312), and the length direction of the sliding hole (3121) is perpendicular to the elastic force direction of the pressing spring (313); a pressing notch (3122) is provided in the middle of the side wall of the sliding hole (3121); The second rotating shaft (3112) is provided on the return rotating body (311); The pressing spring (313) causes the second rotating shaft (3112) to be pressed against the pressing notch (3122).

4. The steering return mechanism according to claim 3, characterized in that: The return fork (312) is provided with two limiting side walls (3123), and the return rotating body (311) is provided with a limiting block (3113); The limiting block (3113) is slidably mounted between the two limiting side walls (3123).

5. The steering return mechanism according to claim 4, characterized in that: The return fork (312) is provided with two limit plates (3124), and the return rotating body (311) is provided with a supporting block (3114); The supporting block (3114) is used to support and limit the limiting plate (3124).

6. The steering return mechanism according to claim 3, characterized in that: The return trigger body (40) is an arc-shaped plate, and the distance between the two ends of the arc-shaped plate is greater than the distance between the first steering return block (320) and the second steering return block (330); The first steering return block (320) and the second steering return block (330) are respectively provided with a sharp corner that matches the end of the return triggering body (40).

7. The steering return mechanism according to any one of claims 1 to 6, characterized in that: A push pin (230) is slidably mounted on the handle assembly (20), and an elastic thrust is applied to the push pin (230) via a push spring (240); A curved surface block (101) is fixedly mounted on the outer shell (10), and the end of the ejector pin (230) is elastically pressed against the curved surface block (101). The curved surface block (101) is used to limit the handle assembly (20) to a trigger position.

8. The steering return mechanism according to claim 7, characterized in that: The handle assembly (20) comprises a handle (210) and a coupling (220), and the toggle block (202) is arranged on the coupling (220); A portion of the handle (210) is exposed at the end of the extension portion (110); the handle (210) and the coupling (220) are connected via a third rotating shaft (203); an angle exists between the first rotating shaft (201) and the third rotating shaft (203); The coupling (220) is rotatably mounted on the outer shell (10) via a first rotating shaft (201).

9. The steering return mechanism according to claim 7, characterized in that: The outer shell (10) comprises an upper shell (120) and a lower shell (130), and the upper shell (120) and the lower shell (130) can be snap-fitted and fixedly assembled.

10. An automobile, characterized in that: It comprises the steering return mechanism according to any one of claims 1 to 9.

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