A steering wheel for a vehicle

Abstract

A kind of automobile steering wheel, including steering wheel bottom plate and steering wheel rim, and one end is fixedly connected with steering wheel rim on steering wheel bottom plate symmetric rotatable installation is rotated shaft;Its characterized in that: steering wheel rim has two spokes and inner end is equipped with connecting block respectively, steering wheel rim is fixed in the one end of rotated shaft respectively by connecting block and clamping block;Micro electric cylinder is symmetrically equipped with in the two sides of steering wheel bottom plate, its output end is hinged with driving arm, the other end of driving arm is hinged with lower support arm and upper support arm, lower support arm lower end is hinged below steering wheel bottom plate, and upper support arm upper end is hinged on connecting block by movable shaft.Effective is: through micro electric cylinder telescopic and drive lower support arm swing through driving arm, it can be driven by upper support arm and realize automatic turnover or reset relative to steering wheel bottom plate by steering wheel rim, simple structure, low manufacturing cost, can be flexibly adjusted driving space according to driving demand, effectively increase the seating space of driver, improve the comfort of driver.

Description

Technical Field

[0001] This invention relates to the field of automotive steering system technology, and more specifically to an automotive steering wheel capable of automatic bending and resetting. Background Technology

[0002] With the rapid development of automotive technology, more and more advanced technologies are being applied to the automotive field, and consumers are placing increasingly higher demands on the driving comfort of drivers and passengers. Traditional car steering wheels have a large rim size and are integrated with the steering wheel frame and fixed to the steering column. This not only occupies the passenger space but also reduces driver comfort after long-term driving, thereby increasing the risk of driver fatigue.

[0003] With the rapid development and popularization of autonomous driving technology, automobiles have placed new demands on the flexibility and spatial adaptability of steering systems, which existing traditional car steering wheels can no longer meet. Therefore, with technological advancements, some steering wheels have been designed with a flip-folding function. However, this type of steering wheel achieves its flipping function through a motor, worm gear transmission mechanism, lead screw transmission mechanism, and linkage assembly. Its structure is complex and its manufacturing cost is high, thus leaving room for improvement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a car steering wheel that can automatically flip and reset, has a simple structure and low manufacturing cost, can flexibly adjust the driving space, and improve the driver's comfort.

[0005] The technical solution of the present invention is as follows: A car steering wheel includes a steering wheel base plate and a steering wheel rim. A rotating shaft is symmetrically and rotatably mounted on the steering wheel base plate. One end of the rotating shaft is fixedly connected to the steering wheel rim. Pivoting of the rotating shaft about its axis of rotation causes the steering wheel rim to rotate relative to the steering wheel base plate about the axis of rotation. Its characteristic is that: The steering wheel rim has two symmetrically arranged spokes, and an integral connecting block is provided at the inner end of each of the two spokes. The steering wheel rim is fixed to one end of the rotating shaft by the connecting block and the clamping block respectively. On both sides of the bottom surface of the steering wheel base plate, there are symmetrically arranged inclined miniature electric cylinders. The output end of the miniature electric cylinder is hinged to a drive arm. The other end of the drive arm passes through a rectangular hole in the steering wheel base plate and is hinged to a lower support arm and an upper support arm through a pin. The lower end of the lower support arm passes through the rectangular hole and is hinged to the bottom of the steering wheel base plate through a fixed shaft. The upper end of the upper support arm is hinged to the corresponding connecting block through a movable shaft, which is used to drive the steering wheel rim to rotate and reset.

[0006] As a further preferred embodiment, a mounting base is fixed on the bottom surface of the steering wheel base plate corresponding to the micro electric cylinder, and the mounting base is provided with an inclined mounting hole. The micro electric cylinder is inserted and fixed in the mounting hole and controlled by an electronic control unit.

[0007] As a further preferred embodiment, the other end of the drive arm is forked, and the opposite ends of the lower support arm and the upper support arm are respectively located in the slots at the other end of the drive arm to improve transmission stability.

[0008] As a further preferred embodiment, support blocks are fixed on both sides of the bottom surface of the steering wheel base plate at the lower end of the lower support arm, and the two ends of the fixed shaft are fixed on the support blocks.

[0009] As a further preferred embodiment, the rotating shaft is a hollow stepped shaft with a notch along its axial direction on its outer edge. A semi-circular groove is provided on the connecting block at the location where the rotating shaft is installed, and a positioning key is provided in the center of the semi-circular groove. The positioning key is inserted into the notch on the rotating shaft to facilitate the connection of the steering wheel rim and the wiring.

[0010] As a further preferred option, a limit nut is threadedly connected to one end of the rotating shaft, located outside the connecting block and the clamping block.

[0011] As a further preferred embodiment, two rectangular bosses are symmetrically provided on both sides of the steering wheel base plate, and the rotating shafts are rotatably installed in the through holes on the rectangular bosses respectively; arc-shaped slides are provided around the through holes on the rectangular bosses respectively, and the movable shafts pass through the corresponding arc-shaped slides.

[0012] As a further preferred embodiment, an arc-shaped groove is provided around the through hole on the outer side of the rectangular boss, and locating pins are symmetrically fixed on the steering wheel rim and inserted into the corresponding arc-shaped grooves, so as to realize the flipping limit of the steering wheel rim.

[0013] The beneficial effects of this invention are: By extending and retracting a miniature electric cylinder, the lower support arm swings via the drive arm, which in turn drives the upper support arm to automatically flip or reset the steering wheel rim relative to the steering wheel base plate. This design is simple in structure and low in manufacturing cost. It can flexibly adjust the driving space according to driving needs, effectively increasing the driver's seating space and improving driver comfort.

[0014] 2. By controlling the operation of the micro electric cylinder through the vehicle-mounted electronic control unit, the steering wheel rim can be automatically rotated and reset, which can meet the requirements of autonomous driving technology for the interior space layout of the car, while also facilitating the control of assembly dimensions and adapting to the installation requirements of different car models. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2yes Figure 1 The left view.

[0017] Figure 3 yes Figure 1 AA sectional view.

[0018] Figure 4 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 5 This is a structural diagram of the steering wheel base plate.

[0020] Figure 6 This is a schematic diagram of the structure of the present invention after being flipped.

[0021] Figure 7 This is a three-dimensional view of the present invention after being flipped.

[0022] In the diagram: 1. Steering wheel rim, 101. Spoke, 102. Connecting block, 2. Steering wheel base plate, 201. Rectangular boss, 202. Rectangular elongated hole, 203. Arc-shaped slide, 204. Arc-shaped groove, 3. Clamping block, 4. Rotating shaft, 5. Limiting nut, 6. Positioning pin, 7. Upper support arm, 8. Movable shaft, 9. Mounting seat, 10. Miniature electric cylinder, 11. Drive arm, 12. Lower support arm, 13. Fixed shaft, 14. Support block. Detailed Implementation

[0023] The specific embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1-6 As shown, the present invention relates to an automobile steering wheel, comprising a steering wheel base plate 2 and a steering wheel rim 1. Two rotating shafts 4 are symmetrically and rotatably mounted on the steering wheel base plate 2. One end of the rotating shaft 4 is fixedly connected to the steering wheel rim 1. The pivoting of the rotating shaft 4 around its rotation axis causes the steering wheel rim 1 to rotate relative to the steering wheel base plate 2 around the rotation axis. Two rectangular bosses 201 are symmetrically provided on both sides of the steering wheel base plate 2. The rectangular bosses 201 are perpendicular to the steering wheel base plate 2 and are integrally connected to the steering wheel base plate 2. The rotating shafts 4 are rotatably inserted into the through holes on the rectangular bosses 201 through clearance fit.

[0025] The steering wheel rim 1 has two spokes 101 arranged symmetrically on the left and right. A connecting block 102 is provided at the inner end of each of the two spokes 101. The connecting block 102 is rectangular in shape and is integrated with the spokes 101. The connecting block 102 is located outside the corresponding rectangular boss 201 and is arranged parallel to the rectangular boss 201. The steering wheel rim 1 is fixed to one end of the two rotating shafts 4 by screws through the connecting block 102 and the clamping block 3.

[0026] The rotating shaft 4 is a hollow stepped shaft with a rectangular notch along its axial direction on its outer edge. A semi-circular groove for clamping the rotating shaft 4 is provided on the connecting block 102 at the location where the rotating shaft 4 is installed. An integrated positioning key is located in the center of the semi-circular groove. The positioning key is inserted into the notch on the rotating shaft 4 to facilitate connection between the steering wheel rim 1 and the wiring. A limit nut 5 is threadedly connected to one end of the rotating shaft 4, located outside the connecting block 102 and the clamping block 3, to achieve axial positioning of the rotating shaft 4.

[0027] On both sides of the bottom surface of the steering wheel base plate 2, there are symmetrically arranged inclined miniature electric cylinders 10. The miniature electric cylinders 10 form an angle with the steering wheel base plate 2. The output end of the miniature electric cylinder 10 is hinged to a drive arm 11 via a pin. The other end of the drive arm 11 passes through a rectangular elongated hole 202 on the steering wheel base plate 2 and is hinged to a lower support arm 12 and an upper support arm 7 via a pin. The lower end of the lower support arm 12 passes through the rectangular elongated hole 202 and is hinged to the bottom of the steering wheel base plate 2 via a fixed shaft 13. The upper end of the upper support arm 7 is hinged to a corresponding connecting block 102 via a movable shaft 8, which is used to drive the steering wheel rim 1 to rotate and reset. The other end of the drive arm 11 and the lower end of the upper support arm 7 are both forked. The opposite ends of the lower support arm 12 and the upper support arm 7 are respectively located in the slots at the other end of the drive arm 11, and the upper end of the lower support arm 12 is located in the slots at the lower end of the upper support arm 7, so as to improve transmission stability.

[0028] A mounting base 9 is fixed on the bottom surface of the steering wheel base plate 2 corresponding to the micro electric cylinder 10. The mounting base 9 has an inclined mounting hole. The micro electric cylinder 10 is inserted and fixed in the mounting hole and controlled by the vehicle body electronic control unit.

[0029] Support blocks 14 are fixed to the bottom surface of the steering wheel base plate 2 on both sides of the lower end of the lower support arm 12 by screws, and the two ends of the fixing shaft 13 are respectively inserted and fixed on the corresponding support blocks 14.

[0030] Arc-shaped slides 203 are provided around the through holes on the rectangular boss 201. The movable shaft 8 passes through the corresponding arc-shaped slide 203 and its outer end is fixedly connected to the corresponding connecting block 102 by threads. Arc-shaped grooves 204 are provided around the through holes on the outer side of the rectangular boss 201. Positioning pins 6 are symmetrically fixed on the steering wheel rim 1 and are inserted into the corresponding arc-shaped grooves 204 by clearance fit, so as to realize the flipping guidance and auxiliary limiting of the steering wheel rim 1.

[0031] In the initial state, the micro electric cylinder 10 is in the extended state, the steering wheel rim 1 is in the open state and parallel to the steering wheel base plate 2, and the movable shaft 8 is located at the upper end of the arc-shaped slide 203.

[0032] like Figures 6-7 As shown, when it is necessary to control the steering wheel rim 1 to flip, a request is sent to the electronic control unit by switching the corresponding driving mode on the vehicle system. The electronic control unit controls the micro electric cylinder 10 to retract simultaneously. The drive arm 11 drives the lower support arm 12 to swing and pull the upper support arm 7 downward. The movable shaft 8 at the upper end of the upper support arm 7 slides along the arc-shaped slide rail 203 and drives the steering wheel rim 1 to flip relative to the steering wheel base plate 2. When flipping, the steering wheel rim 1 drives the rotating shaft 4 to rotate around the rotation axis until the steering wheel rim 1 flips 60 degrees relative to the steering wheel base plate 2 and then stops. At this time, the micro electric cylinder 10 is in the retracted state.

[0033] When a reset is required, a request is sent to the electronic control unit by switching to the corresponding driving mode on the vehicle's infotainment system. The electronic control unit then controls the micro electric cylinder 10 to extend.

[0034] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details.

Claims

1. A car steering wheel, comprising a steering wheel base plate and a steering wheel rim, wherein a rotating shaft is symmetrically and rotatably mounted on the steering wheel base plate, one end of the rotating shaft is fixedly connected to the steering wheel rim, and pivoting of the rotating shaft about its axis of rotation causes the steering wheel rim to rotate relative to the steering wheel base plate about the axis of rotation; characterized in that: The steering wheel rim has two symmetrically arranged spokes, and an integral connecting block is provided at the inner end of each of the two spokes. The steering wheel rim is fixed to one end of the rotating shaft by the connecting block and the clamping block respectively. On both sides of the bottom surface of the steering wheel base plate, there are symmetrically arranged inclined miniature electric cylinders. The output end of the miniature electric cylinder is hinged to a drive arm. The other end of the drive arm passes through a rectangular hole in the steering wheel base plate and is hinged to a lower support arm and an upper support arm through a pin. The lower end of the lower support arm passes through the rectangular hole and is hinged to the bottom of the steering wheel base plate through a fixed shaft. The upper end of the upper support arm is hinged to the corresponding connecting block through a movable shaft, which is used to drive the steering wheel rim to rotate and reset.

2. The automobile steering wheel according to claim 1, characterized in that: A mounting base is fixed on the bottom surface of the steering wheel base plate corresponding to the micro electric cylinder. The mounting base has an inclined mounting hole. The micro electric cylinder is inserted and fixed in the mounting hole and controlled by an electronic control unit.

3. A car steering wheel according to claim 1, characterized in that: The other end of the drive arm is forked, and the opposite ends of the lower support arm and the upper support arm are located in the slots at the other end of the drive arm to improve transmission stability.

4. A car steering wheel according to claim 1, characterized in that: Support blocks are fixed on both sides of the lower end of the lower support arm on the bottom surface of the steering wheel base plate, and the two ends of the fixed shaft are fixed on the support blocks.

5. A car steering wheel according to claim 1, characterized in that: The rotating shaft is a hollow stepped shaft with a notch along its axial direction on its outer edge. A semi-circular groove is provided on the connecting block at the location where the rotating shaft is installed, and a positioning key is provided in the center of the semi-circular groove. The positioning key is inserted into the notch on the rotating shaft to facilitate the connection of the steering wheel rim and the wiring.

6. A car steering wheel according to claim 5, characterized in that: A limit nut is threadedly connected to one end of the rotating shaft, located outside the connecting block and clamping block.

7. A car steering wheel according to any one of claims 1-6, characterized in that: Two rectangular bosses are symmetrically arranged on both sides of the steering wheel base plate. The rotating shaft is rotatably installed in the through hole of the rectangular boss. Arc-shaped slides are arranged around the through hole on the rectangular boss, and the movable shaft passes through the corresponding arc-shaped slide.

8. A car steering wheel according to claim 7, characterized in that: An arc-shaped groove is provided around the through hole on the outer side of the rectangular boss. A positioning pin is symmetrically fixed on the rim of the steering wheel and inserted into the corresponding arc-shaped groove to facilitate the flipping and limiting of the steering wheel rim.

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