Car steering wheel vibration feedback safety warning device

Abstract

This utility model provides a vibration feedback safety warning device for automotive steering wheels, relating to the field of automotive parts technology. It includes an automotive steering wheel body with a ring-shaped handle fixedly connected to its outer side. Vibration actuators are provided on both the left and right sides of the outer surface of the ring-shaped handle. This utility model utilizes the sliding engagement of the arc-shaped mounting groove of the ring-shaped handle with an arc-shaped vibration tube, and the mutual cooperation of the ring-shaped protrusion with the fastening screw and threaded hole. First, the arc-shaped vibration tube is slid into the arc-shaped mounting groove for initial positioning, and then the fastening screw is screwed into the threaded hole for rigid fixation. Simultaneously, the anti-slip convex strips and ring-shaped protrusions of EPDM material tightly adhere to the surface of the ring-shaped handle due to their elasticity, filling tiny gaps. This structure effectively solves the problem of loose connections in existing devices, not only eliminating gaps between the device and the handle to prevent abnormal noise, but also improving vibration transmission efficiency. Furthermore, the EPDM material's anti-slip properties enhance the driver's grip stability.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a vibration feedback safety warning device for automotive steering wheels. Background Technology

[0002] During car driving, traditional safety warnings rely mainly on dashboard lights and buzzers. However, in scenarios such as heavy rain, fog, urban congestion, and driver fatigue, sound and light warnings are easily ignored and cannot promptly remind drivers to avoid risks. In contrast, the steering wheel vibration feedback safety warning device can directly act on the driver's hands through tactile feedback, which can effectively make up for the shortcomings of sound and light warnings and improve driving safety.

[0003] The following problems still exist in the existing technology:

[0004] Many vibration warning devices are connected to the steering wheel handle using a single clip or adhesive, which can easily loosen due to long-term vibration, causing gaps between the device and the handle. This not only reduces vibration transmission efficiency but may also produce abnormal noises. In most vibration devices, the vibration source drive structure is not stable enough. They either lack support for rotating parts or the vibration transmission parts are solid structures, which can easily increase the drive load due to excessive weight. At the same time, the vibration feedback of solid structures is often too harsh, affecting the driver's grip comfort. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the existing technology, such as the easy loosening of the connection between the vibration warning device and the steering wheel handle, the insufficient stability of the vibration source drive structure, and the harsh vibration feedback. Therefore, this invention proposes a vibration feedback safety warning device for automobile steering wheels.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a car steering wheel vibration feedback safety warning device, including a car steering wheel body, an annular handle fixedly connected to the outer side of the car steering wheel body, and vibration actuation components provided on both the left and right sides of the outer surface of the annular handle.

[0007] The vibration actuator includes an arc-shaped vibration tube. Anti-slip ridges are fixedly connected to both the upper and lower sides of the outer surface of the arc-shaped vibration tube. Annular protrusions are fixedly connected to both the front and rear ends of the arc-shaped vibration tube. The inner surfaces of the anti-slip ridges and the annular protrusions are in contact with the outer surface of the annular handle.

[0008] Preferably, the anti-slip ridges and annular protrusions are both made of high-elasticity EPDM compound.

[0009] Preferably, the outer surface of the annular handle is provided with arc-shaped mounting grooves on both the left and right sides, and the arc-shaped vibration tube is slidably engaged with the inner surface of the arc-shaped mounting groove.

[0010] Preferably, the inner surface of the annular handle has four threaded holes on both the left and right sides, and the annular protrusion is rotatably connected to fastening screws on both the upper and lower sides of the side closest to the steering wheel body. The outer surface of the fastening screws is threadedly connected to the inner surface of the threaded holes.

[0011] Preferably, a connecting bracket is fixedly connected to the middle of the inner wall of the arc-shaped vibration cannula, and a dual-head motor is fixedly connected to the middle of the connecting bracket.

[0012] Preferably, the output shafts at both ends of the dual-head motor are fixedly connected to universal couplings, and a rotating shaft is fixedly connected to the end of the universal coupling away from the dual-head motor.

[0013] Preferably, the end of the rotating shaft away from the universal coupling is rotatably connected to the inner wall of the arc-shaped vibration tube, and the outer surface of the end of the rotating shaft close to the universal coupling is rotatably connected to a support bracket, and the two support brackets are respectively fixedly connected to the front and rear sides of the inner surface of the arc-shaped vibration tube.

[0014] Preferably, a rotating protrusion is fixedly connected to the outer surface of the rotating shaft, and vibration blocks are fixedly connected to both the front and rear sides of the inner surface of the arc-shaped vibration tube. Both the rotating protrusion and the vibration blocks adopt a hollow structure and are made of high-strength plastic.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. In this utility model, the arc-shaped mounting groove of the ring handle slides and the arc-shaped vibration tube is engaged, and the ring protrusion cooperates with the fastening screw and the threaded hole for threaded fixation. Combined with the anti-slip convex strip and the high-elasticity EPDM compound material of the ring protrusion, a triple connection structure of mechanical engagement, screw fixation and elastic fit is formed. First, the arc-shaped vibration tube is slid into the arc-shaped mounting groove for initial positioning, and then the fastening screw is screwed into the threaded hole to complete rigid fixation. At the same time, the anti-slip convex strip and the ring protrusion of EPDM material are tightly attached to the surface of the ring handle due to their own elasticity, filling the tiny gaps. This structure effectively solves the problem of easy loosening of the connection of the existing device. It not only eliminates the gap between the device and the handle and avoids the generation of abnormal noise, but also improves the vibration transmission efficiency. In addition, the EPDM material also has anti-slip properties, which enhances the driver's grip stability.

[0017] 2. In this utility model, a stable and efficient vibration drive transmission system is formed by connecting the output shaft of a dual-head motor to a universal coupling and a rotating shaft, supporting the rotating shaft with a support bracket, and cooperating with the rotating protrusion and the hollow structure vibration block. After the dual-head motor starts, it drives the rotating shaft to rotate through the universal coupling. The support bracket and the inner wall of the arc-shaped vibration tube provide bidirectional support to both ends of the rotating shaft, preventing the rotating shaft from shifting due to high-speed rotation. The rotating protrusion on the rotating shaft rotates with the shaft and periodically impacts the vibration block on the inner wall of the arc-shaped vibration tube. The hollow structure rotating protrusion and vibration block can produce moderate deformation upon impact, converting rigid impact into soft vibration and transmitting it to the arc-shaped vibration tube. This structure solves the problems of unstable vibration source drive and harsh vibration feedback in existing devices. The support bracket improves the stability of the drive structure and extends the service life of components, while the hollow structure reduces the weight of the vibration components, reduces the burden on the motor drive, and makes the vibration feedback softer, improving the driver's grip comfort. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the automotive steering wheel vibration feedback safety warning device of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the ring handle of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the vibration actuator of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the vibration actuator of this utility model.

[0022] Legend: 1. Car steering wheel body; 2. Circular handle; 21. Arc-shaped mounting groove; 22. Threaded hole; 3. Vibration actuator; 31. Arc-shaped vibration tube; 32. Anti-slip ridge; 33. Circular protrusion; 34. Fastening screw; 35. Connecting bracket; 36. Dual-head motor; 37. Universal coupling; 38. Rotating shaft; 39. Support bracket; 310. Rotating protrusion; 311. Vibration block. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1: As Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a technical solution: it includes a car steering wheel body 1, with an annular handle 2 fixedly connected to the outer side of the car steering wheel body 1. Vibration actuators 3 are provided on both the left and right sides of the outer surface of the annular handle 2. Each vibration actuator 3 includes an arc-shaped vibration tube 31. Anti-slip convex strips 32 are fixedly connected to the upper and lower sides of the outer surface of the arc-shaped vibration tube 31, and annular protrusions 33 are fixedly connected to both the front and rear ends of the arc-shaped vibration tube 31. The inner surfaces of the anti-slip convex strips 32 and the annular protrusions 33 are flush with the annular handle 2. The outer surfaces are in contact with each other. The anti-slip ridges 32 and the annular ridges 33 are both made of high-elasticity EPDM compound rubber. The outer surface of the annular handle 2 has arc-shaped mounting grooves 21 on both the left and right sides. The arc-shaped vibration tube 31 is slidably engaged with the inner surface of the arc-shaped mounting groove 21. The inner surface of the annular handle 2 has four threaded holes 22 on both the left and right sides. The annular ridges 33 are rotatably connected to fastening screws 34 on both the upper and lower sides of the side closest to the car steering wheel body 1. The outer surface of the fastening screws 34 is threadedly connected to the inner surface of the threaded holes 22.

[0026] The overall effect achieved by Embodiment 1 is as follows: the sliding engagement of the arc-shaped mounting groove 21 and the arc-shaped vibration tube 31 enables rapid initial positioning of the vibration actuator 3 on the ring handle 2, preventing misalignment during installation. The ring protrusion 33, in conjunction with the threaded connection between the fastening screw 34 and the threaded hole 22, firmly fixes the arc-shaped vibration tube 31 to the ring handle 2, creating a rigid fixation effect. Simultaneously, the anti-slip strip 32 and the ring protrusion 33, made of high-elasticity EPDM compound, adhere tightly to the outer surface of the ring handle 2 due to their elasticity, filling the tiny gaps between them. This eliminates potential noise from long-term vibration and improves vibration transmission efficiency. Furthermore, the anti-slip properties of the EPDM material enhance the stability of the driver's grip on the ring handle 2, preventing hand slippage.

[0027] Example 2: Figure 4As shown, this utility model provides a technical solution: a connecting bracket 35 is fixedly connected to the middle of the inner wall of the arc-shaped vibration insertion tube 31, a double-head motor 36 is fixedly connected to the middle of the connecting bracket 35, a universal coupling 37 is fixedly connected to the output shafts at both ends of the double-head motor 36, a rotating shaft 38 is fixedly connected to the end of the universal coupling 37 away from the double-head motor 36, the end of the rotating shaft 38 away from the universal coupling 37 is rotatably connected to the inner wall of the arc-shaped vibration insertion tube 31, a support bracket 39 is rotatably connected to the outer surface of the end of the rotating shaft 38 close to the universal coupling 37, two support brackets 39 are respectively fixedly connected to the front and rear sides of the inner surface of the arc-shaped vibration insertion tube 31, a rotating protrusion 310 is fixedly connected to the outer surface of the rotating shaft 38, and a vibration block 311 is fixedly connected to both the front and rear sides of the inner surface of the arc-shaped vibration insertion tube 31. The rotating protrusion 310 and the vibration block 311 are both hollow structures and made of high-strength plastic.

[0028] The overall effect of Embodiment 2 is as follows: the connecting bracket 35 provides stable support for the dual-head motor 36, preventing wobbling during motor operation; the universal coupling 37 can compensate for minor coaxiality deviations that may exist during the installation of the rotating shaft 38, ensuring that the power of the dual-head motor 36 is stably transmitted to the rotating shaft 38; the support bracket 39 and the inner wall of the arc-shaped vibration tube 31 form bidirectional support for both ends of the rotating shaft 38, preventing the rotating shaft 38 from shifting or bending when rotating at high speed; and the hollow rotating protrusion 310 and vibration block 311 reduce their own weight while ensuring high strength, reducing the driving burden of the dual-head motor 36, and the moderate deformation generated when the two collide can transform rigid impact into soft vibration, avoiding excessively harsh vibration feedback that affects the driver's grip comfort.

[0029] The working principle of the entire device is as follows: When the safety warning function needs to be activated, the dual-head motor 36 is powered on and started. Its output shaft drives the rotating shaft 38 to rotate through the universal coupling 37. The rotating shaft 38 rotates stably under the bidirectional support of the support bracket 39 and the inner wall of the arc-shaped vibration tube 31. The rotating protrusion 310 on the rotating shaft 38 rotates synchronously with the shaft and periodically impacts the vibration block 311 on the inner wall of the arc-shaped vibration tube 31. The vibration block 311 transmits the vibration generated by the impact to the arc-shaped vibration tube 31. Since the vibration actuator 3 itself is set on both sides of the annular handle 2, and the anti-slip protrusions 32 and annular protrusions 33 on the outer surface of the arc-shaped vibration tube 31 are directly in contact with the driver. When the hand grips the handle, the arc-shaped vibration tube 31 is tightly connected to the ring handle 2 via the arc-shaped mounting groove 21 and the fastening screw 34, without any gap loss. Therefore, the vibration energy is directly transmitted to the driver's hand through the arc-shaped vibration tube 31, the anti-slip ridge 32, and the ring protrusion 33, providing a safety warning through tactile feedback. When installing the equipment, first slide the arc-shaped vibration tube 31 into the arc-shaped mounting groove 21 of the ring handle 2 to complete the initial positioning, and then screw the fastening screw 34 through the ring protrusion 33 and into the threaded hole 22 of the ring handle 2 to complete the fixation. The anti-slip ridge and ring protrusion made of EPDM material automatically fit the surface of the handle, fill the gaps and provide an anti-slip effect.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A safety warning device with vibration feedback for steering wheel of automobile, comprising a steering wheel body (1), an annular handle (2) is fixedly connected to the outer side of the steering wheel body (1), characterized in that: Vibration actuators (3) are provided on both the left and right sides of the outer surface of the ring handle (2). The vibration actuator (3) includes an arc-shaped vibration tube (31). Anti-slip ridges (32) are fixedly connected to both the upper and lower sides of the outer surface of the arc-shaped vibration tube (31). Annular protrusions (33) are fixedly connected to both the front and rear ends of the arc-shaped vibration tube (31). The inner surfaces of the anti-slip ridges (32) and the annular protrusions (33) are in contact with the outer surface of the annular handle (2).

2. The vibrating feedback safety warning device for steering wheel of automobile as claimed in claim 1 wherein: The anti-slip ridges (32) and the annular ridges (33) are both made of high-elasticity EPDM compound.

3. The vibrating feedback safety warning device for steering wheel of automobile as claimed in claim 1 wherein said device further comprises: The outer surface of the ring handle (2) is provided with arc-shaped mounting grooves (21) on both the left and right sides, and the arc-shaped vibration tube (31) is slidably engaged with the inner surface of the arc-shaped mounting groove (21).

4. The vibrating feedback safety warning device for automobile steering wheel as claimed in claim 1 wherein: The inner surface of the ring handle (2) is provided with four threaded holes (22) on both the left and right sides. The ring protrusion (33) is rotatably connected to fastening screws (34) on both the upper and lower sides of the side close to the car steering wheel body (1). The outer surface of the fastening screws (34) is threadedly connected to the inner surface of the threaded holes (22).

5. The vibrating feedback safety warning device for automobile steering wheel as claimed in claim 1 wherein: A connecting bracket (35) is fixedly connected to the middle of the inner wall of the arc-shaped vibration cannula (31), and a double-headed motor (36) is fixedly connected to the middle of the connecting bracket (35).

6. The vibrating feedback safety warning device for steering wheel of automobile as claimed in claim 5 wherein: The output shafts at both ends of the dual-head motor (36) are fixedly connected to universal couplings (37), and a rotating shaft (38) is fixedly connected to the end of the universal coupling (37) away from the dual-head motor (36).

7. The vibrating feedback safety warning device for steering wheel of automobile as claimed in claim 6 wherein: The end of the rotating shaft (38) away from the universal coupling (37) is rotatably connected to the inner wall of the arc-shaped vibration tube (31). The outer surface of the end of the rotating shaft (38) close to the universal coupling (37) is rotatably connected to a support bracket (39). The two support brackets (39) are respectively fixedly connected to the front and rear sides of the inner surface of the arc-shaped vibration tube (31).

8. The vibrating feedback safety warning device for steering wheel of automobile as claimed in claim 7 wherein: The outer surface of the rotating shaft (38) is fixedly connected to a rotating protrusion (310), and the inner surface of the arc-shaped vibration tube (31) is fixedly connected to both the front and rear sides of a vibration block (311). Both the rotating protrusion (310) and the vibration block (311) are hollow structures and made of high-strength plastic.

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