Silent automobile lever

CN224810608UActive Publication Date: 2026-09-29DONGGUAN LINJVE IND INVESTMENTS
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Patent Information

Application Number
CN202522537744.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-09-29
Estimated Expiration
2035-11-28

AI Technical Summary

Technical Problem

[0008]本实用新型的一个目的在于,提供一种静音汽车拨杆,能解决现有汽车拨杆因推杆与V形导向面采用滑动摩擦而导致的阻力大、手感差及噪音大的问题

Benefits of technology

[0034]这种滚动摩擦连接显著降低了运动阻力,使操作手感更轻盈顺滑,同时减少了摩擦噪音,有效解决了现有技术中因滑动摩擦导致的阻力大、手感差及噪音大的问题。此外,滚动摩擦减少了接触面的磨损,提高了拨杆的耐用性和可靠性。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile lever, specifically discloses a mute automobile lever, which comprises a lever mounting support for being fixed on a steering wheel pipe column and a self-resetting lever rotatably mounted on the lever mounting support, the lever mounting support is provided with a V-shaped guide surface with an opening facing the self-resetting lever, one end of the self-resetting lever close to the V-shaped guide surface is provided with a spring ball assembly for elastically pushing the V-shaped guide surface, the spring ball assembly and the V-shaped guide surface are in rolling friction connection, so that the self-resetting lever is automatically reset and stably positioned at the top corner of the V-shaped guide surface when not subjected to external force. The mute automobile lever can solve the problems of large resistance, poor hand feeling and loud noise caused by the sliding friction between the push rod and the V-shaped guide surface of the existing automobile lever.
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Description

Technical Field

[0001] This utility model relates to the field of automotive lever technology, and in particular to a silent automotive lever. Background Technology

[0002] Automotive shift levers typically consist of a lever mounting bracket fixed to the steering column and a self-resetting lever rotatably mounted on the bracket. To achieve automatic reset after being shifted, the lever mounting bracket generally has a V-shaped guide surface, and the corresponding end of the self-resetting lever has a push rod and a reset spring. In its natural state, the reset spring drives the push rod to always press against the apex of the V-shaped guide surface, thus maintaining the neutral position of the self-resetting lever. When the driver shifts the self-resetting lever, it causes the push rod to overcome the spring force and slide out from the apex of the V-shaped guide surface; after releasing the lever, under the action of the reset spring, the push rod slides along the inclined surface of the V-shaped guide surface, eventually automatically resetting to the apex position of the V-shaped guide surface, completing the centering action.

[0003] During the aforementioned reset process, the push rod and the V-shaped guide surface remain in sliding friction contact throughout. This contact method has a significant drawback:

[0004] On the one hand, sliding friction generates significant motion resistance, resulting in a stiff and unsmooth feel when operating the lever, affecting the driver's operating experience; on the other hand, long-term sliding friction may also lead to wear on the contact surface, affecting the reliability and service life of the mechanism.

[0005] On the other hand, friction noise is easily generated when the push rod and the V-shaped guide surface slide relative to each other, which is particularly prominent in a quiet cabin environment and reduces the sense of quality of the vehicle.

[0006] Therefore, existing car levers need to be improved to solve the problems of high resistance, poor feel and high noise caused by the sliding friction between the push rod and the V-shaped guide surface.

[0007] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0008] One objective of this invention is to provide a silent car lever that solves the problems of high resistance, poor feel, and high noise caused by the sliding friction between the push rod and the V-shaped guide surface in existing car levers.

[0009] To achieve the above objectives, this utility model provides a silent car lever, including a lever mounting bracket for fixing to the steering column, and a self-resetting lever rotatably mounted on the lever mounting bracket;

[0010] The lever mounting bracket is provided with a V-shaped guide surface with an opening facing the self-resetting lever, and the end of the self-resetting lever near the V-shaped guide surface is provided with a spring ball assembly that elastically pushes against the V-shaped guide surface;

[0011] The spring ball assembly and the V-shaped guide surface are connected by rolling friction, which allows the self-resetting lever to automatically reset and stabilize at the apex position of the V-shaped guide surface when no external force is applied.

[0012] Optionally, the self-resetting lever also includes a lever body;

[0013] The lever body has a rotating shaft in the middle that is rotatably connected to the lever mounting bracket. The lever body has a guide groove with an opening facing the V-shaped guide surface at the end face near the V-shaped guide surface. The spring ball assembly is slidably installed in the guide groove.

[0014] Optionally, the spring ball assembly includes:

[0015] A sliding sleeve, wherein the sliding sleeve has an inner cavity with openings at both ends;

[0016] A rolling steel ball is located at the opening of the inner cavity of the sleeve near the V-shaped guide surface, and partially protrudes outward through the opening to abut against the V-shaped guide surface;

[0017] A reset spring is located in the inner cavity of the sliding sleeve; one end of the reset spring abuts against the rolling steel ball to drive the rolling steel ball against the V-shaped guide surface, and the other end of the reset spring protrudes outward through the opening at the end of the inner cavity of the sliding sleeve away from the V-shaped guide surface to abut against the bottom of the guide groove.

[0018] Optionally, when the self-resetting lever is reset to the apex position of the V-shaped guide surface, the distance from the apex position of the V-shaped guide surface to the bottom of the guide groove is greater than the length of the sliding sleeve.

[0019] Optionally, a linear sliding bearing is provided between the sliding sleeve and the lever body.

[0020] Optional, also includes:

[0021] A switch mounting sleeve, wherein the switch mounting sleeve is provided with a through hole for the self-resetting lever to pass through;

[0022] At least one push-actuated switch is mounted on the switch mounting sleeve, and the pressing direction of the push-actuated switch is perpendicular to the axis of the rotating shaft.

[0023] Optionally, the lever mounting bracket includes a bracket base and a bracket cover;

[0024] The V-shaped guide surface includes a lower inclined surface that slopes towards the support base from the apex of the V-shaped guide surface, and an upper inclined surface that slopes towards the support cover from the apex of the V-shaped guide surface.

[0025] There are two push-actuated switches, which are arranged on both sides of the rotating shaft and pressed in opposite directions. One of the push-actuated switches is a lower actuation switch facing the bracket base, and the other push-actuated switch is an upper actuation switch facing the bracket cover.

[0026] When the spring ball assembly abuts against the lower inclined surface, the upper actuation switch pushes against the bracket cover to trigger the upper actuation switch;

[0027] When the spring ball assembly abuts against the upper inclined surface, the lower actuation switch pushes against the bracket base to trigger the lower actuation switch.

[0028] Optionally, a flexible connector may also be included, one end of which is electrically connected to the press-actuated switch and the other end of which is electrically connected to the vehicle's electronic control system.

[0029] Optionally, the flexible connector is a connecting harness or an FPC cable.

[0030] Optionally, a self-resetting lever is provided on each of the left and right sides of the lever mounting bracket.

[0031] The beneficial effects of this utility model are as follows: It provides a silent automotive shift lever, and the shift lever mounting bracket can be fixed to the steering column by bolts or clips, providing a stable support base. The self-resetting shift lever is rotatably mounted on the shift lever mounting bracket via a rotating shaft structure, achieving swing around the shaft. The V-shaped guide surface on the shift lever mounting bracket is composed of two symmetrical inclined planes, with the apex being the neutral position. The spring ball assembly uses the internal spring preload to continuously push the rolling steel balls against the V-shaped guide surface.

[0032] When the driver moves the self-resetting lever, the spring ball assembly rolls along the inclined surface of the V-shaped guide surface, and rolling friction rather than sliding friction is formed between the steel ball and the inclined surface;

[0033] When the driver releases the lever, the self-resetting lever is not subjected to external force. The spring ball assembly automatically returns to the top corner position under the guidance of the V-shaped guide surface, thus achieving balance. This completes the automatic reset of the lever and stabilizes it in the center.

[0034] This rolling friction connection significantly reduces motion resistance, making operation smoother and lighter, while also reducing friction noise. It effectively solves the problems of high resistance, poor feel, and high noise caused by sliding friction in existing technologies. Furthermore, rolling friction reduces wear on the contact surfaces, improving the durability and reliability of the lever. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A cross-sectional schematic diagram of a silent car lever provided for an embodiment;

[0037] Figure 2 An exploded view of a silent car lever provided as an example.

[0038] In the picture:

[0039] 1. Lever mounting bracket; 101. V-shaped guide surface; 102. Bracket base; 103. Bracket cover;

[0040] 2. Self-resetting lever; 201. Lever body; 2011. Rotating shaft; 2012. Guide groove; 202. Spring ball assembly; 2021. Sliding sleeve; 2022. Rolling steel ball; 2023. Return spring;

[0041] 3. Switch mounting sleeve; 301. Through-pole hole;

[0042] 4a. Lower actuation switch; 4b. Upper actuation switch. Detailed Implementation

[0043] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0044] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0045] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0046] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0047] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0048] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0049] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0050] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0051] The direct drive mechanism in this invention can be a linear motor, a cylinder, a hydraulic cylinder, or a motor lead screw and slider assembly, etc.; the rotary drive mechanism can be a servo motor, a stepper motor, or a rotary cylinder, etc.

[0052] See Figure 1 and Figure 2 This embodiment provides a silent car lever, including a lever mounting bracket 1 for fixing on the steering column, and a self-resetting lever 2 rotatably mounted on the lever mounting bracket 1;

[0053] The lever mounting bracket 1 is provided with a V-shaped guide surface 101 with an opening facing the self-resetting lever 2, and the self-resetting lever 2 is provided with a spring ball assembly 202 that elastically pushes against the V-shaped guide surface 101 at one end.

[0054] The spring ball assembly 202 and the V-shaped guide surface 101 are connected by rolling friction, so that the self-resetting lever 2 automatically resets and stabilizes at the apex position of the V-shaped guide surface 101 when no external force is applied.

[0055] In this embodiment, the lever mounting bracket 1 can be fixed to the steering column by bolts or clips, providing a stable support base. The self-resetting lever 2 is rotatably mounted on the lever mounting bracket 1 via a rotating shaft structure, achieving oscillation around the shaft. The V-shaped guide surface 101 on the lever mounting bracket 1 is composed of two symmetrical inclined surfaces, with the apex being the neutral position. The spring ball assembly 202 uses internal spring preload to continuously push the rolling steel ball 2022 against the V-shaped guide surface 101.

[0056] When the driver moves the self-resetting lever 2, the spring ball assembly 202 rolls along the inclined surface of the V-shaped guide surface 101, and rolling friction is formed between the steel ball and the inclined surface rather than sliding friction.

[0057] When the driver releases the lever, the self-resetting lever 2 is not subjected to external force. The spring ball assembly 202 automatically returns to the top corner position under the guidance of the V-shaped guide surface 101, thereby achieving balance. This completes the automatic reset of the lever and stabilizes it in the center.

[0058] This rolling friction connection significantly reduces motion resistance, making operation smoother and lighter, while also reducing friction noise. It effectively solves the problems of high resistance, poor feel, and high noise caused by sliding friction in existing technologies. Furthermore, rolling friction reduces wear on the contact surfaces, improving the durability and reliability of the lever.

[0059] In this embodiment, the self-resetting lever 2 further includes a lever body 201. The lever body 201 has a pivot portion 2011 at its center, which is rotatably connected to the lever mounting bracket 1. The lever body 201 has a guide groove 2012 with an opening facing the V-shaped guide surface 101 at its end face near the V-shaped guide surface 101. The spring ball assembly 202 is slidably mounted in the guide groove 2012.

[0060] Furthermore, the spring ball assembly 202 includes:

[0061] Sliding sleeve 2021, wherein the sliding sleeve 2021 is provided with a sliding sleeve inner cavity with openings at both ends;

[0062] Rolling steel ball 2022, the rolling steel ball 2022 is located at the opening of one end of the inner cavity of the sliding sleeve near the V-shaped guide surface 101, and partially protrudes outward through the opening to abut against the V-shaped guide surface 101;

[0063] A reset spring 2023 is located in the inner cavity of the sliding sleeve; one end of the reset spring 2023 abuts against the rolling steel ball 2022 to drive the rolling steel ball 2022 to abut against the V-shaped guide surface 101, and the other end of the reset spring 2023 protrudes outward through the opening at the end of the inner cavity of the sliding sleeve away from the V-shaped guide surface 101 to abut against the bottom of the guide groove 2012.

[0064] During operation, when the lever is actuated, the rolling steel ball 2022, under the oblique force of the V-shaped guide surface 101, pushes the sliding sleeve 2021 back along the guide groove 2012, compressing the reset spring 2023 to store energy. Simultaneously, the rolling steel ball 2022 rolls on the inclined surface, achieving low-friction motion. After the lever is released, the reset spring 2023 releases energy, pushing the sliding sleeve 2021 and the rolling steel ball 2022 back to their apex position along the inclined surface, completing the automatic reset. This design replaces sliding friction with rolling friction, reducing operating noise and improving reset accuracy and response speed. The guiding effect of the guide groove 2012 on the sliding sleeve 2021 ensures the stability of the component's motion trajectory, preventing uneven wear or jamming.

[0065] Furthermore, when the self-resetting lever 2 is positioned at the apex of the V-shaped guide surface 101, the distance from the apex of the V-shaped guide surface 101 to the bottom of the guide groove 2012 is greater than the length of the sliding sleeve 2021. This dimensional difference provides the necessary space for the sliding sleeve 2021 to retract within the guide groove 2012. When the lever is actuated, the rolling steel ball 2022 is driven by the inclined plane pressure to move the sliding sleeve 2021 towards the bottom of the groove. If there is insufficient space, the sliding sleeve 2021 may become stuck against the bottom of the groove, causing reset failure. This embodiment, through reasonable design of the distance dimensions, ensures that the sliding sleeve 2021 can retract freely when compressing the reset spring 2023, avoiding mechanical interference and ensuring a smooth and consistent reset process.

[0066] Optionally, a linear sliding bearing is provided between the sliding sleeve 2021 and the lever body 201. The linear sliding bearing can be a standard ball bearing or a bushing structure, installed between the outer wall of the sliding sleeve 2021 and the inner wall of the guide groove 2012. When the sliding sleeve 2021 is subjected to axial force, the linear sliding bearing converts sliding friction into rolling friction or low-resistance sliding, significantly reducing the component's motion resistance. This not only further improves the operating feel, making actuation easier, but also reduces wear between the sliding sleeve 2021 and the guide groove 2012, improving the overall durability of the mechanism. The introduction of the linear sliding bearing is a supplementary optimization to the rolling friction mechanism, enhancing the stability of the quiet operation.

[0067] In this embodiment, the silent car lever also includes:

[0068] The switch mounting sleeve 3 is provided with a through hole 301 for the self-resetting lever 2 to pass through;

[0069] At least one push-actuated switch is mounted on the switch mounting sleeve 3, and the pressing direction of the push-actuated switch is perpendicular to the axis of the rotating shaft 2011.

[0070] Furthermore, the lever mounting bracket 1 includes a bracket base 102 and a bracket cover 103;

[0071] The V-shaped guide surface 101 includes a lower inclined surface that slopes towards the support base 102 from the apex position of the V-shaped guide surface 101, and an upper inclined surface that slopes towards the support cover 103 from the apex position of the V-shaped guide surface 101.

[0072] There are two push-actuated switches, which are arranged on both sides of the rotating shaft 2011 and pressed in opposite directions. One of the push-actuated switches is a lower actuation switch 4a that is directly opposite the bracket base 102, and the other push-actuated switch is an upper actuation switch 4b that is directly opposite the bracket cover 103.

[0073] When the spring ball assembly 202 abuts against the lower inclined surface, the upper actuation switch 4b pushes against the bracket cover 103 to trigger the upper actuation switch 4b;

[0074] When the spring ball assembly 202 abuts against the upper inclined surface, the lower actuation switch 4a pushes against the bracket base 102 to trigger the lower actuation switch 4a.

[0075] In this embodiment, the pressing direction of the press-actuated switch is perpendicular to the axis of the rotating shaft 2011, so that the swing of the self-resetting lever 2 can be converted into a linear pressing action of the switch. The lever mounting bracket 1 consists of a bracket base 102 and a bracket cover 103, which form a closed structure by means of bolt locking or snap-fit ​​connection, etc. The V-shaped guide surface 101 can be integrated into the bracket cover 103 or the bracket base 102.

[0076] In this embodiment, there are two push-actuated switches, located on both sides of the rotating shaft 2011 and pressed in opposite directions: one is a lower actuation switch 4a facing the bracket base 102, and the other is an upper actuation switch 4b facing the bracket cover 103. During operation, when the driver moves the self-resetting lever 2, the spring ball assembly 202 rolls along the V-shaped guide surface 101.

[0077] If the self-resetting lever 2 is moved upward, the spring ball assembly 202 abuts against the lower inclined surface, and the movement of the lever body 201 drives the upper actuation switch 4b to move toward the bracket cover 103 and press to trigger, while the lower actuation switch 4a is in the released state.

[0078] Conversely, if the self-resetting lever 2 is moved downwards, the spring ball assembly 202 abuts against the upper inclined surface, and the lower actuation switch 4a moves toward the bracket base 102 and is triggered, while the upper actuation switch 4b is in the released state.

[0079] This design directly drives the switch via the mechanical movement of the lever, achieving bidirectional electrical signal output, which can be used to control vehicle functions such as lights or windshield wipers. The pressing direction of the push-actuated switch is perpendicular to the swing direction of the lever, ensuring reliable triggering and a clear tactile feedback, avoiding accidental operation. At the same time, the beveled design of the V-shaped guide surface 101, in coordination with the switch layout, makes the reset and triggering processes smooth and continuous, further enhancing the user experience.

[0080] Of course, it is also possible to only set the lower actuation switch 4a or the upper actuation switch 4b, and this utility model does not limit this.

[0081] To transmit the electrical signal from the push-to-actuate switch to the vehicle system, this invention also includes a flexible connector. One end of the flexible connector is connected to the electrical contacts of the push-to-actuate switch by welding or plugging, while the other end extends to connect to the vehicle's electronic control system (such as an ECU). The flexible connector is made of a flexible material, allowing it to move with the lever without stress concentration when it swings. This arrangement avoids the problem of rigid wiring being prone to breakage, improving the durability and reliability of the circuit. At the same time, the flexible connector facilitates wiring, saves space, and ensures a compact overall structure for the lever assembly.

[0082] For example, the flexible connector can be implemented as a wiring harness or an FPC (flexible printed circuit board) cable. Wiring harnesses, composed of multiple insulated wires, offer advantages such as low cost and ease of maintenance; FPC cables, on the other hand, employ a thin-layer circuit structure, resulting in small size and light weight, making them suitable for space-constrained installation environments. Both methods provide stable electrical signal transmission and accommodate the swinging motion of the lever; users can choose the appropriate type based on vehicle design requirements.

[0083] In an extended embodiment of this utility model, a self-resetting lever 2 is provided on each of the left and right sides of the lever mounting bracket 1, forming a symmetrical double lever structure. Each self-resetting lever 2 independently integrates a spring ball assembly 202 and a V-shaped guide surface 101, and their operation does not interfere with each other. This layout allows the driver to operate different functions with their left and right hands respectively (such as controlling the turn signal on the left and the wipers on the right), improving operational convenience and vehicle ergonomics. The double-sided design also enhances modularity, facilitating mass production and installation.

[0084] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A silent car lever, characterized in that, It includes a lever mounting bracket (1) for fixing to the steering column, and a self-resetting lever (2) rotatably mounted on the lever mounting bracket (1); The lever mounting bracket (1) is provided with a V-shaped guide surface (101) with an opening facing the self-resetting lever (2), and the end of the self-resetting lever (2) near the V-shaped guide surface (101) is provided with a spring ball assembly (202) that elastically pushes against the V-shaped guide surface (101). The spring ball assembly (202) and the V-shaped guide surface (101) are connected by rolling friction, so that the self-resetting lever (2) automatically resets and stabilizes at the apex position of the V-shaped guide surface (101) when not subjected to external force.

2. The silent car lever according to claim 1, characterized in that, The self-resetting lever (2) also includes a lever body (201). The lever body (201) has a rotating shaft (2011) in the middle that is rotatably connected to the lever mounting bracket (1). The lever body (201) has a guide groove (2012) with an opening facing the V-shaped guide surface (101) at the end face near the V-shaped guide surface (101). The spring ball assembly (202) is slidably installed in the guide groove (2012).

3. The silent car lever according to claim 2, characterized in that, The spring ball assembly (202) includes: A sliding sleeve (2021) is provided with an inner cavity with openings at both ends; Rolling steel ball (2022), the rolling steel ball (2022) is located at the opening of the inner cavity of the sleeve near the V-shaped guide surface (101), and partially protrudes outward through the opening to abut against the V-shaped guide surface (101); A reset spring (2023) is located in the inner cavity of the sliding sleeve; wherein, one end of the reset spring (2023) abuts against the rolling steel ball (2022) to drive the rolling steel ball (2022) to abut against the V-shaped guide surface (101), and the other end of the reset spring (2023) protrudes outward through the opening at the end of the inner cavity of the sliding sleeve away from the V-shaped guide surface (101) to abut against the bottom of the guide groove (2012).

4. The silent car lever according to claim 3, characterized in that, When the self-resetting lever (2) is reset to the apex position of the V-shaped guide surface (101), the distance from the apex position of the V-shaped guide surface (101) to the bottom of the guide groove (2012) is greater than the length of the sliding sleeve (2021).

5. The silent car lever according to claim 3, characterized in that, A linear sliding bearing is provided between the sliding sleeve (2021) and the lever body (201).

6. The silent car lever according to claim 2, characterized in that, Also includes: A switch mounting sleeve (3) is provided with a through hole (301) for the self-resetting lever (2) to pass through. At least one push-actuated switch is mounted on the switch mounting sleeve (3), and the pressing direction of the push-actuated switch is perpendicular to the axis of the rotating shaft (2011).

7. The silent car lever according to claim 6, characterized in that, The lever mounting bracket (1) includes a bracket base (102) and a bracket cover (103). The V-shaped guide surface (101) includes a lower inclined surface that slopes towards the support base (102) from the apex position of the V-shaped guide surface (101), and an upper inclined surface that slopes towards the support cover (103) from the apex position of the V-shaped guide surface (101). There are two push-actuated switches, which are arranged on both sides of the rotating shaft (2011) and pressed in opposite directions. One of the push-actuated switches is a lower actuation switch (4a) facing the bracket base (102), and the other push-actuated switch is an upper actuation switch (4b) facing the bracket cover (103). When the spring ball assembly (202) abuts against the lower inclined surface, the upper actuation switch (4b) pushes against the bracket cover (103) to trigger the upper actuation switch (4b). When the spring ball assembly (202) abuts against the upper inclined surface, the lower actuation switch (4a) pushes against the bracket base (102) to trigger the lower actuation switch (4a).

8. The silent car lever according to claim 7, characterized in that, It also includes a flexible connector, one end of which is electrically connected to the press-actuated switch and the other end of which is electrically connected to the vehicle's electronic control system.

9. The silent car lever according to claim 8, characterized in that, The flexible connector is a wire harness or an FPC cable.

10. The silent car lever according to claim 1, characterized in that, The lever mounting bracket (1) has a self-resetting lever (2) on each of its left and right sides.