Vehicle and foldable steering wheel thereof

Abstract

The utility model provides a vehicle and a foldable steering wheel thereof.The vehicle comprises a base and a steering wheel framework installed on the base, the steering wheel framework comprises a steering wheel rim and two spoke frameworks symmetrically arranged on the steering wheel rim, and the tail ends of the two spoke frameworks are rotationally connected to the base; the base is used for rotating the steering wheel rim relative to the base; the steering wheel comprises a using state and a folding state. The foldable steering wheel further comprises a rotating shaft, a transmission structure, a driving device and a locking structure, the spoke framework is rotationally connected to the base through the rotating shaft, the transmission structure is connected with the rotating shaft, and the driving device is used for driving the transmission structure to rotate and driving the rotating shaft to rotate so that the steering wheel can be turned over to be switched between the using state and the folding state.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a vehicle and a foldable steering wheel thereof. Background Art

[0002] With the continuous development of automobile autonomous driving technology, vehicles in the future can be driven in manual driving mode or fully automatic driving mode. In manual driving mode, the vehicle is driven by the driver. In fully automatic driving mode, the vehicle is driven automatically by the vehicle system.

[0003] During the fully automatic driving mode, the driver no longer has any need to use the steering wheel. The steering wheel takes up a large space in front of the driver, affecting the comfort of the ride. In addition, the steering wheel is not beautiful and the technological sense of the entire vehicle is reduced. Utility Model Content

[0004] In view of this, the present application provides a vehicle and a foldable steering wheel thereof to free up driving space.

[0005] In a first aspect, the present application provides a foldable steering wheel, comprising a base and a steering wheel frame mounted on the base, the steering wheel frame comprising a steering wheel rim and two spoke frames symmetrically arranged on the steering wheel rim, the ends of the two spoke frames are also rotatably connected to the base respectively, for rotating the steering wheel rim relative to the base; the steering wheel comprises a use state and a folded state; the foldable steering wheel also comprises a rotating shaft, a transmission structure, a driving device, and a locking structure for rotatably connecting the spoke frame to the base, the transmission structure is connected to the rotating shaft, the driving device is used to drive the transmission structure to rotate and drive the rotating shaft to rotate so that the steering wheel can be switched between the use state and the folded state; the base is provided with a first fixing seat and a locking hole, the locking structure comprises a locking pin, the end of at least one spoke frame and the locking pin are respectively located on opposite sides of the first fixing seat, the locking pin can operably pass through the locking hole and abut or separate from the end of the spoke frame, thereby locking or stopping locking the steering wheel when the steering wheel is in the use state.

[0006] Furthermore, the transmission structure includes a first worm wheel, a worm, and a second worm wheel, the first worm wheel is fixed to one end of the worm, the second worm wheel is fixed to the rotating shaft and meshes with the other end of the worm, and the first worm wheel is driven by the driving device to drive the worm, the second worm wheel, and the rotating shaft to rotate in turn.

[0007] Furthermore, the first worm gear is a circular worm gear, the second worm gear is a fan-shaped worm gear, the other end of the worm is provided with a first thread meshing with the fan-shaped worm gear, the driving device is provided with an output shaft, and the output shaft is provided with a second thread meshing with the circular worm gear.

[0008] Furthermore, the worm and the rotating shaft are arranged in directions perpendicular to each other, the second worm wheel is close to one end of the rotating shaft, and the locking structure is close to the other end of the rotating shaft.

[0009] Furthermore, the base is provided with two oppositely arranged first fixing seats, and the two ends of the rotating shaft respectively pass through the corresponding first fixing seats from the inner sides of the two first fixing seats, the ends of the two spoke frames are respectively fixed to the two ends of the rotating shaft and are located on the outer sides of the first fixing seats, and the locking pin is located on the inner side of at least one of the first fixing seats.

[0010] Furthermore, the base is also provided with two oppositely arranged second fixing seats, and the two ends of the worm are respectively fixed to the two second fixing seats, and the two second fixing seats are located on the inner side of one of the first fixing seats and are perpendicular to the placement direction of the two first fixing seats.

[0011] Furthermore, a limiting portion is protruded toward the worm at the bottom of the second worm wheel. When the steering wheel is switched from a folded state to a use state, the second worm wheel is driven by the worm to rotate until the limiting portion abuts against an end surface of the second fixing seat away from the worm, so that the steering wheel is limited to a position corresponding to the use state.

[0012] Furthermore, the base is also provided with a third fixed seat, and the locking structure includes an elastic member and an electromagnetic push rod, the electromagnetic push rod is fixed on one side of the third fixed seat, the locking pin is installed at the end of the electromagnetic push rod away from the third fixed seat, the elastic member is sleeved on the electromagnetic push rod and is located between the locking pin and the third fixed seat, the locking pin passes through the locking hole and is located on the outer side of the corresponding first fixed seat, the electromagnetic push rod can be selectively started to move, thereby driving the locking pin to be pulled out of the locking hole and separated from the end of the spoke skeleton, the elastic member is squeezed by the third fixed seat and the locking pin to generate an elastic force, and when the electromagnetic push rod is closed, the locking pin extends out of the locking hole from the outer side of the first fixed seat under the action of the elastic force.

[0013] In a second aspect, the present application provides a vehicle, comprising a vehicle body and a foldable steering wheel arranged on the vehicle body.

[0014] Furthermore, the vehicle also includes a main control device, which is used to control the start or stop of the driving device and the electromagnetic push rod.

[0015] The above-mentioned vehicle and its foldable steering wheel not only enhance the sense of technology, but also further release the driving space and increase the comfort of the vehicle. Specifically, the steering wheel drives the transmission structure to rotate through the driving device and drives the rotating shaft to rotate so that the steering wheel flips and switches between the use state and the folded state, and the locking structure can be operably abutted or separated from the end of the steering wheel frame, so that when the steering wheel is in the use state, the steering wheel is locked in the position corresponding to the use state, thereby improving the stability of the foldable steering wheel in the use state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of a steering wheel provided in an embodiment of the present application in a use state.

[0018] Figure 2 It is a three-dimensional exploded schematic diagram of a steering wheel provided in one embodiment of the present application.

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure of the base shown.

[0020] Figure 4 yes Figure 1 Schematic diagram of the structure of the steering wheel skeleton shown.

[0021] Figure 5 yes Figure 1 A first angle schematic diagram of the transmission structure shown.

[0022] Figure 6 yes Figure 1 A second angle schematic diagram of the transmission structure shown.

[0023] Figure 7 yes Figure 1 Schematic diagram of the structure of the locking structure shown.

[0024] Figure 8 yes Figure 1 Schematic diagram of the structure of the drive device shown.

[0025] Fig. 9 It is a schematic diagram of the structure of a vehicle provided in one embodiment of the present application.

[0026] The numbers in the figure are as follows:

[0027] Steering wheel 100 Top 331

[0028] Base 1 Bottom 332

[0029] First fixing seat 11 limiting portion 333

[0030] Through hole 111 Driving device 4

[0031] Lock hole 112 Output shaft 41

[0032] Second fixing seat 12 Second thread 411

[0033] Third fixing seat 13 locking structure 5

[0034] Steering wheel frame 2 Lock pin 51

[0035] Steering wheel rim 21 Elastic member 52

[0036] Spoke frame 22 Electromagnetic push rod 53

[0037] Transmission structure 3 Rotating shaft 6

[0038] First worm gear 31 Body 200

[0039] Worm 32 Main control device 300

[0040] First thread 321 Vehicle 1000

[0041] Second worm gear 33

[0042] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0044] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar planning objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate. In other words, the described embodiments are implemented according to a sequence other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations may also include other content. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to only those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] It should be noted that the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] In the fully automatic driving mode, the vehicle 1 is driven automatically by the automatic driving system, and the driver no longer needs to drive the steering wheel. The steering wheel occupies a large space in front of the driver, affecting the comfort of riding. In order to solve this problem, the present application provides a foldable steering wheel 100, which can be folded when the vehicle enters the automatic driving stage, thereby enhancing the sense of technology and further releasing the driving space and increasing the comfort of the driver.

[0047] Please see Figure 1-2 , Figure 1 is a structural schematic diagram of a steering wheel in use provided by an embodiment of the present application, Figure 21 is a three-dimensional exploded schematic diagram of a steering wheel provided in an embodiment of the present application. The steering wheel 100 provided in the present application includes a base 1, a steering wheel frame 2, a transmission structure 3, a drive device 4, a locking structure 5, and a rotating shaft 6. The steering wheel frame 2, the transmission structure 3, the drive device 4, the locking structure 5, and the rotating shaft 6 are all located on the end surface of the base 1 facing the driver's seat. The steering wheel frame 2 is rotatably connected to the base 1 through the rotating shaft 6. The transmission structure 3 is fixedly connected to the rotating shaft 6. The drive device 4 drives the transmission structure 3 to rotate and drives the rotating shaft 6 to rotate so that the steering wheel 100 is flipped and switched between the use state and the folded state. The locking structure 5 can be operatively abutted or stopped abutting with the steering wheel frame 2, so that the steering wheel 100 is locked in the use state. It can be understood that the steering wheel 100 includes a use state and a folded state. When the steering wheel 100 is flipped to the use state, the steering wheel 100 is used by the driver for manual driving; when the steering wheel 100 is flipped to the folded state, the steering wheel 100 does not need to be used by the driver for automatic driving.

[0048] Please refer to Figure 3 , Figure 3 yes Figure 1 The schematic diagram of the structure of the base shown. The base 1 includes two first fixing seats 11 arranged opposite to each other, two second fixing seats 12 arranged opposite to each other, and a third fixing seat 13. The two second fixing seats 12 are located on the inner side of one of the first fixing seats 11 and are perpendicular to the placement direction of the two first fixing seats 11. The third fixing seat 13 is located on the inner side of the other first fixing seat 11 and is parallel to the placement direction of the two first fixing seats 11. The steering wheel frame 2 and the rotating shaft 6 are fixed to the base 1 through the first fixing seat 11, the transmission structure 3 is fixed to the base 1 through the second fixing seat 12, and the locking structure 5 is fixed to the base 1 through the third fixing seat 13 and the first fixing seat 11.

[0049] Please refer to Figure 4 , Figure 4 yes Figure 1 The structural schematic diagram of the steering wheel skeleton is shown. The steering wheel skeleton 2 includes a steering wheel rim 21 and two spoke skeletons 22 symmetrically arranged on the steering wheel rim 21. The ends of the two spoke skeletons 22 are also rotatably connected to the base 1 through the rotating shaft 6, so as to make the steering wheel rim 21 rotate relative to the base 1. In this embodiment, when the steering wheel 100 is in use, the steering wheel rim 21 is arranged parallel to the base 1, and when the steering wheel 100 is in a folded state, the steering wheel rim 21 is arranged at a certain angle to the base 1.

[0050] The two ends of the rotating shaft 6 pass through the corresponding first fixing seats 11 from the inner sides of the two first fixing seats 11, and the ends of the two spoke skeletons 22 are respectively fixed to the two ends of the rotating shaft 6 and are located outside the first fixing seats 11. In this embodiment, the first fixing seat 11 is provided with a through hole 111, and the rotating shaft 6 passes through the first fixing seat 11 through the through hole 111 to be fixed on the base 1. The first fixing seat 11 is generally in a stable triangular shape with a narrow top and a wide bottom, thereby improving the stability of the rotating shaft 6 fixed to the base 1. The rotating shaft 6 is a cylindrical solid body, and the rotating shaft 6 is arranged parallel to the driving device 4. Along the axial direction of the rotating shaft 6, from the middle of the rotating shaft 6 to the two free ends of the rotating shaft 6, the rotating shaft 6 passes through the second worm gear 33, the first fixing seat 11, and the ends of the spoke skeleton 22 in sequence. In this embodiment, the rotating shaft 6 is fixedly connected to the second worm gear 33 and the ends of the spoke skeleton 22, and the second worm gear 33 rotates to drive the rotating shaft 6 to rotate, thereby driving the spoke skeleton 23 to rotate. The rotating shaft 6 is rotatably connected to the first fixing seat 11 , and the rotating shaft 6 rotates in the through hole 111 of the first fixing seat 11 .

[0051] Please refer to Figure 5-6 , Figure 5 yes Figure 1 The first angle schematic diagram of the transmission structure shown, Figure 6 yes Figure 1 A second angle schematic diagram of the transmission structure shown. The transmission structure 3 includes a first worm wheel 31, a worm 32, and a second worm wheel 33. The two ends of the worm 32 are fixed to two second fixed seats 12 respectively. The first worm wheel 31 is fixed to one end of the worm 32, the second worm wheel 33 is fixed to the rotating shaft 6 and meshes with the other end of the worm 32, the second worm wheel 33 is close to one end of the rotating shaft 6, and the locking structure 5 is close to the other end of the rotating shaft 6. The first worm wheel 31 is driven by the driving device 4, which drives the worm 32, the second worm wheel 33, and the rotating shaft 6 to rotate in turn. In this embodiment, the driving device 4 and the rotating shaft 6 are located on the same side of the worm 32, the driving device 4 and the worm 32 are arranged in a direction perpendicular to each other and are located at one end of the worm 32 close to the first worm wheel 31, and the rotating shaft 6 and the worm 32 are arranged in a direction perpendicular to each other and are located at the other end of the worm 32 close to the second worm wheel 33. In this embodiment, the transmission structure 3 composed of the first worm gear 31, the worm 32, and the second worm gear 33 has a reverse self-locking property. It can be understood that the steering wheel 100 is locked by the locking device 5 when in use, and is locked by the reverse self-locking characteristics of the worm gear when in the folded state, thereby improving the stability and safety of the entire steering wheel 100.

[0052] The first worm wheel 31 is a circular worm wheel, and the first worm wheel 31 is protruded from the worm 32 in a direction perpendicular to the axis of the worm 32 and meshed with the driving device 4. The second worm wheel 33 is a fan-shaped worm wheel, the top of which is penetrated by the rotating shaft 6, the bottom of which is meshed with the other end of the worm 32, the other end of the worm 32 is provided with a first thread meshed with the fan-shaped worm wheel, and the bottom of the fan-shaped worm wheel is protruded toward the worm 32. In this embodiment, when the steering wheel 100 is switched from the folded state to the use state, the second worm wheel 33 is driven by the worm 32 to rotate until the limit portion 333 abuts against the end face of the second fixing seat 12 away from the worm 32, so that the steering wheel 100 is limited to the position corresponding to the use state.

[0053] Please refer to Figure 7 , Figure 7 yes Figure 6 The structural schematic diagram of the locking structure shown. The locking structure 5 includes a locking pin 51, an elastic member 52, and an electromagnetic push rod 53. The locking structure 5 is fixed to the base 1 through the third fixing seat 13 and the first fixing seat 11, and the locking pin 51 is located on the inner side of at least one first fixing seat 11. Specifically, the third fixing seat 13 and the first fixing seat 11 are arranged side by side, the electromagnetic push rod 53 is fixed to the side of the third fixing seat 13 close to the first fixing seat 11, the locking pin 51 is installed at the end of the electromagnetic push rod 53 away from the third fixing seat 13, the elastic member 52 is sleeved on the electromagnetic push rod 53 and is located between the locking pin 51 and the third fixing seat 13, the first fixing seat 11 is provided with a locking hole 112 for the locking pin 51 to slide, and the locking pin 51 passes through the locking hole 112 and is located on the outer side of the corresponding first fixing seat 11. In this embodiment, the end of at least one spoke frame 22 and the locking pin 51 are respectively located on opposite sides of the first fixing seat 11, and the locking pin 51 can be operably passed through the locking hole 112 to abut or separate from the end of the spoke frame 22, so that the steering wheel 100 is locked through the locking structure 5 when the steering wheel 100 is in use, so that the steering wheel 100 will not flip over when in use, thereby improving the stability of the foldable steering wheel 100 when in use.

[0054] Furthermore, the electromagnetic push rod 53 can be selectively activated to move, thereby driving the lock pin 51 to be pulled out of the lock hole 112 and separated from the end of the spoke frame 22. The elastic member 52 is squeezed by the third fixing seat 13 and the lock pin 51 to generate an elastic force. When the electromagnetic push rod 53 is closed, the lock pin 51 extends from the lock hole 112 to the outside of the first fixing seat 11 under the action of the elastic force. It can be understood that the lock pin 51 is a metal material attracted by electromagnetic attraction. In this embodiment, the locking structure 5 acts on the end of the spoke frame 22, and prevents or allows the steering wheel frame 2 to fold by abutting or stopping abutting the end of the spoke frame 22. In other feasible embodiments, the locking structure 5 can also act on other structures of the entire steering wheel 100 except the spoke frame 22, such as the transmission structure 3. And the number of locking structures 5 can also be increased according to actual needs, and the number of locking structures 5 is at least one. In this embodiment, the elastic member 52 is a spring. In some other feasible embodiments, the elastic member 52 can be elastic foam or a gasket. 、 Shrapnel, etc.

[0055] Please refer to Figure 8 , Figure 8 yes Figure 1 The schematic diagram of the structure of the driving device is shown. The driving device 4 is perpendicular to the worm 32 and extends an output shaft 41 to the worm 32. The output shaft 41 is provided with a second thread 411 meshing with the first worm gear 31 and meshing with the gear teeth 312 of the first worm gear 31 through the second thread 411. The output shaft 41 drives the first worm gear 31 to rotate under the drive of the driving device 4. In this embodiment, the driving device 4 is a driving motor, which is used to convert electrical energy into transmission energy for the output shaft 41 to rotate. In this embodiment, the rotation direction of the output shaft 41 is perpendicular to the rotation direction of the first worm gear 31, and the rotation direction of the worm 32 is perpendicular to the rotation direction of the second worm gear 33.

[0056] Please refer to Fig. 9 , Fig. 9: is a structural schematic diagram of a vehicle provided by an embodiment of the present application. The present application also provides a vehicle 1000, the vehicle 1000 includes a body 200 and a foldable steering wheel 100 and a main control device 300 arranged on the body 200, the main control device 300 is connected to the steering wheel 100 for controlling the start or shutdown of the drive device 4 and the electromagnetic push rod 53. In this embodiment, the vehicle 1000 includes a manual driving mode and an automatic driving mode. When the vehicle 1000 switches from the manual driving mode to the automatic driving mode, the main control device 300 sends a folding signal to the steering wheel 100, the steering wheel 100 first controls the locking structure 5 to stop locking the steering wheel 100, and controls the drive device 4 to drive the transmission structure 3 to rotate, thereby driving the steering wheel rim 21 to move toward the base 1, so that the steering wheel 100 enters a folding state. When the vehicle 1000 switches from the automatic driving mode to the manual driving mode, the main control device 300 sends a use signal to the steering wheel 100. The steering wheel 100 first drives the transmission structure 3 to rotate by controlling the driving device 4, and then drives the steering wheel rim 21 to move away from the base 1, so that the steering wheel 100 enters the use state, and controls the locking structure 5 to lock the steering wheel 100 when the steering wheel rim 21 is in the use state.

[0057] The above-mentioned vehicle 1000 and its foldable steering wheel 100 not only enhance the sense of technology, but also further release the driving space and increase the comfort of the vehicle. Specifically, the steering wheel 100 drives the transmission structure 3 to rotate through the driving device 4 and drives the rotating shaft 6 to rotate so that the steering wheel 100 flips and switches between the use state and the folded state, and the locking structure 5 can be operably abutted or separated from the end of the steering wheel frame 2, so that when the steering wheel 100 is in the use state, the steering wheel 100 is locked in the position corresponding to the use state, thereby improving the stability of the foldable steering wheel 100 in the use state.

[0058] The above are only preferred embodiments of the utility model, but do not limit the patent scope of the utility model. Although the utility model is described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above specific implementations, or replace some of the technical features with equivalents. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the utility model patent.

Claims

1. A foldable steering wheel, comprising a base and a steering wheel frame mounted on the base, the steering wheel frame comprising a steering wheel rim and two spoke frames symmetrically arranged on the steering wheel rim, the ends of the two spoke frames are also rotatably connected to the base respectively, so as to make the steering wheel rim rotate relative to the base; characterized in that: The steering wheel includes a use state and a folded state; the foldable steering wheel also includes a rotating shaft, a transmission structure, a driving device, and a locking structure that rotatably connects the spoke skeleton to the base, the transmission structure is connected to the rotating shaft, and the driving device is used to drive the transmission structure to rotate and drive the rotating shaft to rotate so that the steering wheel can flip over and switch between the use state and the folded state; the base includes a first fixed seat and a locking hole arranged on the first fixed seat, the locking structure includes a locking pin, the end of at least one spoke skeleton and the locking pin are respectively located on opposite sides of the first fixed seat, and the locking pin can be operably passed through the locking hole to abut or separate from the end of the spoke skeleton, thereby locking or stopping locking the steering wheel when the steering wheel is in the use state.

2. The foldable steering wheel according to claim 1, characterized in that: The transmission structure includes a first worm wheel, a worm, and a second worm wheel. The first worm wheel is fixed to one end of the worm, the second worm wheel is fixed to the rotating shaft and meshes with the other end of the worm, and the first worm wheel is driven by the driving device to drive the worm, the second worm wheel, and the rotating shaft to rotate in turn.

3. The foldable steering wheel according to claim 2, characterized in that: The first worm gear is a circular worm gear, the second worm gear is a fan-shaped worm gear, the other end of the worm is provided with a first thread meshing with the fan-shaped worm gear, the driving device is provided with an output shaft, and the output shaft is provided with a second thread meshing with the circular worm gear.

4. The foldable steering wheel according to claim 3, characterized in that: The worm and the rotating shaft are arranged in directions perpendicular to each other, the second worm wheel is close to one end of the rotating shaft, and the locking structure is close to the other end of the rotating shaft.

5. The foldable steering wheel according to claim 4, characterized in that: The base is provided with two oppositely arranged first fixing seats, and the two ends of the rotating shaft respectively pass through the corresponding first fixing seats from the inner sides of the two first fixing seats, the ends of the two spoke frames are respectively fixed to the two ends of the rotating shaft and are located on the outer sides of the first fixing seats, and the locking pin is located on the inner side of at least one of the first fixing seats.

6. The foldable steering wheel according to claim 5, characterized in that: The base is also provided with two oppositely arranged second fixing seats, and the two ends of the worm are respectively fixed to the two second fixing seats. The two second fixing seats are located on the inner side of one of the first fixing seats and are perpendicular to the placement direction of the two first fixing seats.

7. The foldable steering wheel according to claim 6, characterized in that: A limiting portion is provided at the bottom of the second worm gear protruding toward the worm. When the steering wheel is switched from a folded state to a use state, the second worm gear is driven by the worm to rotate until the limiting portion abuts against an end surface of the second fixing seat away from the worm, so that the steering wheel is limited to a position corresponding to the use state.

8. The foldable steering wheel according to claim 6, characterized in that: The base is also provided with a third fixing seat, and the locking structure includes an elastic member and an electromagnetic push rod, wherein the electromagnetic push rod is fixed to one side of the third fixing seat, and the locking pin is installed at the end of the electromagnetic push rod away from the third fixing seat, and the elastic member is sleeved on the electromagnetic push rod and is located between the locking pin and the third fixing seat, and the locking pin passes through the locking hole and is located on the outer side of the corresponding first fixing seat, and the electromagnetic push rod can be selectively started to move, thereby driving the locking pin to be pulled out of the locking hole and separated from the end of the spoke skeleton, and the elastic member is squeezed by the third fixing seat and the locking pin to generate an elastic force, and when the electromagnetic push rod is closed, the locking pin extends out of the locking hole from the outer side of the first fixing seat under the action of the elastic force.

9. A vehicle, comprising a vehicle body, characterized in that: The vehicle further comprises a foldable steering wheel as claimed in any one of claims 1 to 8, which is arranged on the vehicle body.

10. The vehicle according to claim 9, characterized in that The vehicle also includes a main control device, which is used to control the start or stop of the driving device and the electromagnetic push rod.

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