Full-width steering wheel and half-width steering wheel automatic switching mechanism

Abstract

The present application provides a mechanism for automatically switching between a full-width steering wheel and a half-width steering wheel, relating to the technical field of steering wheels, comprising an upper half-width handle, a lower half-width steering wheel, a locking tongue, and a disengagement mechanism; the upper half-width handle comprises a first body and a plug-in portion at both ends of the first body, the plug-in portion being a frame-type structure composed of at least one top plate and two side plates; the lower half-width steering wheel comprises a second body and locking plates at both ends of the second body, the second body being provided with a connecting cavity at both ends, the top plate and the locking plate both being provided with locking holes, after the frame-type structure is inserted into the connecting cavity and in its final position, the locking tongue passes through the locking hole, thereby achieving a tight connection between the upper half-width handle and the lower half-width steering wheel; the disengagement mechanism comprises a biasing assembly, the biasing assembly being used to drive the locking tongue out of the locking hole in the locking plate, thereby making the upper half-width handle and the lower half-width steering wheel detachable. By providing the locking tongue and the disengagement mechanism, automatic switching between full-width and half-width steering wheels can be achieved to meet the needs of different groups.

Description

Technical Field

[0001] The present application relates to the technical field of steering wheels, and in particular to an autonomous switching mechanism between a full-width steering wheel and a half-width steering wheel. Background Art

[0002] Most existing car steering wheels are full-spoke. However, due to differences in driver height and driving posture, full-width steering wheels can obstruct vision during actual driving. While there is increasing demand for half-width steering wheels, full-width steering wheels remain the mainstream and are preferred by most customers.

[0003] In order to meet the needs of different groups of people at the same time, a steering wheel that can be freely switched between full-width and half-width is provided. Summary of the Invention

[0004] In view of this, an embodiment of the present specification provides an autonomous switching mechanism between a full-width steering wheel and a half-width steering wheel, which can realize autonomous switching of the steering wheel between full-width and half-width.

[0005] The embodiments of this specification provide the following technical solutions:

[0006] The embodiment of this specification provides an autonomous switching mechanism between a full-width steering wheel and a half-width steering wheel, comprising an upper half-width handle, a lower half-width steering wheel, a locking tongue, and a disengagement mechanism;

[0007] The upper half of the handle includes a first body and plug-in parts extending outwards from both ends of the first body, and the plug-in parts are a frame-shaped structure consisting of at least one top plate and two side plates;

[0008] The lower half steering wheel includes a second body and locking plates extending outwards from both ends of the second body. Both ends of the second body are provided with connecting cavities for at least partially accommodating the frame structure.

[0009] The top plate and the locking plate are both provided with locking holes. When the frame structure is inserted into the connecting cavity and is in the final position, the locking tongue passes through the locking hole after the top plate and the locking plate are aligned, thereby achieving a fastening connection between the upper handle and the lower steering wheel.

[0010] The disengagement mechanism includes a biasing assembly arranged inside the frame structure, and the biasing assembly is used to drive the locking tongue to disengage from the locking hole in the locking plate, so that the upper half of the handle and the lower half of the steering wheel can be detached.

[0011] Through the above technical solution, the upper half of the handle ring and the lower half of the steering wheel are connected by means of an inserting portion and a connecting cavity, and are locked by a locking tongue. When the steering wheel as a whole needs to be switched from full width to half width, the locking tongue is driven out of the locking hole on the locking plate by the biasing component, so that the upper half of the handle ring and the lower half of the steering wheel are no longer locked. At this time, the upper half of the handle ring can be separated from the lower half of the steering wheel, so that the steering wheel mode is switched from full width to half width; when the steering wheel needs to be switched from half width to full width, the inserting portions at both ends of the first body are respectively inserted into the connecting cavities at both ends of the second body, and the locking tongue is inserted into the locking hole after the top plate and the locking plate are aligned, so that the upper half of the handle ring and the lower half of the steering wheel are locked, thereby realizing switching from half width to full width; the overall structure can easily realize autonomous switching between full width and half width, meeting the needs of different groups.

[0012] Preferably, the biasing assembly comprises a sheet metal member and a fixing pin;

[0013] The fixing pin is fixed on the two side plates. One end of the sheet metal is wound and fixed on the fixing pin, and the other end forms an elastic part that fits the inner wall of the top plate. The locking tongue is fixed on the elastic part.

[0014] Through the above technical solution, a sheet metal part and a fixing pin are provided, and one end of the sheet metal part is fixed to the fixing pin by winding to form an elastic part, so that the lock tongue provided on the elastic part has a locking force to lock in the locking hole, making the locking between the locking plate and the top plate more stable and reliable, and increasing the connection stability between the upper half of the handle ring and the lower half of the steering wheel.

[0015] Preferably, the dissociation mechanism also includes a dissociation button and an elastic reset member. A dissociation hole is provided on the top plate, and the dissociation button is fixed on the elastic part after passing through the dissociation hole. The elastic reset member is arranged on the side of the sheet metal part away from the dissociation button, and always pushes the elastic part to fit inside the top plate.

[0016] Through the above technical solution, an elastic reset member and a disengagement button are provided. On the one hand, by pressing the disengagement button, the lock tongue can be easily unlocked. On the other hand, the elastic reset member can provide a more reliable elastic support force for the elastic part, so that the elastic part is always fitted to the inside of the top plate without being affected by external force, so as to enhance the connection reliability between the upper handle ring and the lower steering wheel.

[0017] Preferably, the plug-in portion is further provided with a bottom plate, the bottom plate is arranged away from the top plate, and the bottom plate, the top plate and at least two side plates together constitute the frame structure;

[0018] Two ends of the elastic reset component are respectively in contact with the bottom plate and the sheet metal component.

[0019] Preferably, the frame structure is formed by the top plate, the bottom plate and four side plates;

[0020] A gap is left between the bottom plate and one side plate to form an installation opening for installing the disengaging mechanism.

[0021] Preferably, when the upper handle ring and the lower handle ring are fastened together, the disengagement button is exposed between the opposite ends of the first body and the second body.

[0022] Through the above technical solution, the disengagement button is exposed between the opposite ends of the first body and the second body, which makes it easier for users to operate the disengagement button and improves the convenience of switching between the half-width mode and the full-width mode.

[0023] Preferably, the disengagement button and the elastic reset member are both arranged away from the sheet metal member and the winding end of the fixing pin.

[0024] Through the above technical solution, the elastic return part is set at a position far away from the winding end, so that the elastic return part can generate a larger torque on the sheet metal part, and then when the sheet metal part applies force to the lock tongue, a larger locking force can be generated between the lock tongue and the locking hole, making the locking state between the lock tongue and the locking hole more reliable. At the same time, the disengagement button is set at a position far away from the winding end, which can reduce the pressing force required for the disengagement button to drive the lock tongue out of the locking hole.

[0025] Preferably, the locking tongue is arranged between the disengagement button and the winding end.

[0026] Through the above technical solution, the lock tongue is set between the disengagement button and the winding end, reducing the force arm from the lock tongue to the winding end, thereby increasing the force exerted on the lock tongue from the sheet metal, making the contact between the lock tongue and the locking hole in the locked state more stable and reliable.

[0027] Preferably, when the upper handle and the lower steering wheel are disassembled and separated;

[0028] Both ends of the second body are respectively covered with decorative covers, which are used to cover the locking plate and the connection cavity opening at the end of the second body. The outer peripheral surface of the decorative cover is flush with the outer peripheral surface of the adjacent second body end.

[0029] Through the above technical solution, a decorative cover is set to cover the connection of the lower half steering wheel in half-width mode, covering the locking plate and the connecting cavity, so that the lower half steering wheel has better integrity and is more beautiful when used alone.

[0030] Preferably, when the upper half handle ring and the lower half handle ring are fastened together, a cover structure is provided at the opposite ends of the first body and the second body;

[0031] The cover structure includes an upper cover and a lower cover that are mutually engaged, and the upper cover and the lower cover cooperate with each other to cover the disengagement mechanism, the locking plate and the plug-in portion;

[0032] The outer peripheral surface of the cover structure is flush with the outer peripheral surface of the adjacent first body end and the outer peripheral surface of the adjacent second body end.

[0033] Through the above technical solution, an upper cover and a lower cover are provided that are interlocked with each other, thereby improving the integrity between the upper handlebar and the lower steering wheel in the full-width mode, making the overall structure more beautiful. At the same time, when the upper handlebar needs to be removed, the separation between the upper cover and the lower cover is also relatively convenient, and can be easily removed from the connection between the upper handlebar and the lower steering wheel.

[0034] Compared with the prior art, the at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects:

[0035] By setting the upper half handle ring and the lower half steering wheel to be connected to each other through the plug-in part and the connecting cavity, and locked by the lock tongue, when the steering wheel as a whole needs to be switched from full width to half width, the biasing component drives the lock tongue to disengage from the locking hole on the locking plate, so that the upper half handle ring and the lower half steering wheel are no longer locked. At this time, the upper half handle ring can be separated from the lower half steering wheel, so that the steering wheel mode is switched from full width to half width; when the steering wheel needs to be switched from half width to full width, the plug-in parts at both ends of the first body are respectively inserted into the connecting cavities at both ends of the second body, and the lock tongue is inserted into the locking hole after the top plate and the locking plate are aligned, so that the upper half handle ring and the lower half steering wheel are locked, thereby realizing switching from half width to full width; the overall structure can easily realize autonomous switching between full width and half width to meet the needs of different groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. 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 these drawings without any creative work.

[0037] Figure 1 This is a schematic diagram of the structure of the steering wheel in the present application in a full-width state;

[0038] Figure 2 This is a schematic diagram of the structure after the upper cover and the lower cover in this application are disassembled;

[0039] Figure 3 This is an exploded schematic diagram of the overall structure of a full-width steering wheel and a half-width steering wheel autonomous switching mechanism in this application;

[0040] Figure 4 is a cross-sectional schematic diagram of the plug-in portion and the disengagement mechanism in this application;

[0041] Figure 5 This is a structural diagram of the steering wheel in the present application in a half-width state;

[0042] Figure 6 It is a structural schematic diagram of the decorative cover, connecting cavity and locking plate in this application.

[0043] Figure numerals: 1. Upper handle; 2. Lower steering wheel; 3. First body; 4. Connecting part; 41. Top plate; 42. Bottom plate; 43. Mounting port; 5. Second body; 6. Locking plate; 7. Connecting cavity; 8. Disengagement mechanism; 81. Bias assembly; 811. Sheet metal part; 812. Fixing pin; 82. Disengagement button; 83. Elastic reset part; 9. Lock tongue; 10. Locking hole; 11. Disengagement hole; 12. Upper cover; 13. Lower cover; 14. Decorative cover. DETAILED DESCRIPTION

[0044] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0045] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0046] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0047] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0048] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0049] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0050] like Figures 1 to 3 As shown, an embodiment of this specification provides an autonomous switching mechanism between a full-width steering wheel and a half-width steering wheel, including an upper half-width handle 1, a lower half-width steering wheel 2, a locking tongue 9 and a disengagement mechanism 8.

[0051] like Figures 2 to 4 As shown, the upper handlebar 1 comprises a first body 3 and connectors 4 extending outward from both ends of the first body 3. The connector 4 is a frame-like structure formed by a top plate 41, a bottom plate 42, and four side plates. The top plate 41 and bottom plate 42 are positioned opposite each other. A gap is left between the bottom plate 42 and the side plates away from the first body 3 to form an installation opening 43 for the disengagement mechanism 8.

[0052] The lower half of the steering wheel 2 includes a second body 5 and a locking plate 6 extending outward from both ends of the second body 5. The two ends of the second body 5 are also provided with a connecting cavity 7 for at least partially accommodating the frame structure, wherein the shape of the connecting cavity 7 is adapted to the outer surface of the frame structure, and the length of the locking plate 6 is less than the length of the plug-in portion 4.

[0053] The disengagement mechanism 8 includes a biasing assembly 81 , a disengagement button 82 and an elastic reset member 83 . The biasing assembly 81 includes a sheet metal member 811 and a fixing pin 812 .

[0054] The fixing pin 812 and the sheet metal part 811 are both arranged inside the frame structure. The fixing pin 812 is fixed to two opposite side panels of the frame structure, and the length direction of the fixing pin 812 is perpendicular to the extension direction of the plug-in portion 4. One end of the sheet metal part 811 is fixed to the fixing pin 812 in a coiled manner, and the other end forms an elastic part that fits against the inner wall of the top plate 41, and the lock tongue 9 is fixed to the elastic part. The structural arrangement of the sheet metal part 811 coiled around the fixing pin 812 enables the elastic part to have an elastic force against the inner side of the top plate 41, so as to drive the lock tongue 9 to have a locking force locked in the locking hole on the top plate 41 and the locking hole on the locking plate 6.

[0055] Both the top plate 41 and the locking plate 6 are provided with locking holes 10. When the frame structure is inserted into the connecting cavity 7 and in its final position, the locking holes 10 on the top plate 41 align with the locking holes 10 on the locking plate 6. The locking tongue 9 passes through the aligned locking holes 10 on the top plate 41 and the locking plate 6, thereby securely connecting the upper handlebar 1 and the lower steering wheel 2. The biasing assembly 81 is used to force the locking tongue 9 out of the locking hole 10 in the locking plate 6, thereby allowing the upper handlebar 1 and the lower steering wheel 2 to be detached.

[0056] The top plate 41 also has a release hole 11, through which the release button 82 passes and is fixed to the elastic portion. An elastic return member 83 is fixed to the side of the sheet metal 811 away from the release button 82 and is positioned opposite the release button 82. The elastic return member 83 always pushes the elastic portion against the interior of the top plate 41.

[0057] Specifically, the elastic reset member 83 is a spring. One end of the spring is fixed to the side of the sheet metal member 811 away from the dissociation button 82, and the other end of the spring is fixed to the inner side of the base plate 42.

[0058] In other embodiments, the elastic return member 83 may also be rubber or a spring.

[0059] Furthermore, the release button 82 and the lock tongue 9 are both cylindrical, and the elastic reset member 83 and the release button 82 are both disposed away from the winding end formed by the sheet metal member 811 and the fixing pin 812. The lock tongue 9 is disposed between the release button 82 and the winding end, and the release button 82 and the lock tongue 9 are both fixed to the sheet metal member 811 by welding. When the upper handlebar 1 and the lower steering wheel 2 are fastened together, the release button 82 is exposed between the opposing ends of the first body 3 and the second body 5, making it easier for the user to operate the release button 82. Because the elastic reset member 83 is disposed away from the winding end, it has a longer lever arm. Under the same applied force, it can generate a greater torque, allowing the lock tongue 9, which has a smaller lever arm, to be subjected to a greater force from the sheet metal member 811, thereby making the locked state between the lock tongue 9 and the locking hole 10 more reliable. At the same time, the disengagement button 82 is arranged opposite to the spring, which increases the force arm of the disengagement button 82 and reduces the pressing force required for the disengagement button 82 to disengage the lock tongue 9 from the locking hole 10, making it easier to separate the locking plate 6 and the plug-in part 4 through the disengagement button 82.

[0060] In other embodiments, the disengagement button 82 and the lock tongue 9 may also be fixed to the sheet metal component 811 by riveting or bolting.

[0061] During actual use, when it is necessary to switch from a full-width steering wheel to a half-width steering wheel, by pressing the disengagement button 82, the disengagement button 82 drives the sheet metal 811 to compress the elastic reset part 83 and move the elastic plate toward the bottom plate 42, so that the lock tongue 9 is separated from the locking hole 10 on the locking plate 6. At this point, the locking plate 6 and the top plate 41 are no longer locked with each other. At this time, the plug-in part 4 can be removed from the connecting cavity 7, so that the upper half of the handle ring 1 can be removed from the lower half of the steering wheel 2, completing the switch from the full-width steering wheel to the half-width steering wheel. When it is necessary to switch from a half-width steering wheel to a full-width steering wheel, press the disengagement button 82 and insert the connecting parts 4 at both ends of the first body 3 into the connecting cavities 7 at both ends of the second body 5 respectively, so that the locking tongue 9 passes through the aligned locking holes 10 on the top plate 41 and the locking plate 6, and the top plate 41 and the locking plate 6 are locked to each other. At this time, the upper half-width handle 1 and the lower half-width steering wheel 2 are in a locked state, and the switch from the half-width steering wheel to the full-width steering wheel is completed.

[0062] like Figures 1 to 3 As shown, in the full-width state of the steering wheel, that is, when the upper handle 1 and the lower steering wheel 2 are fastened together, the opposite ends of the first body 3 and the second body 5 are provided with a cover structure.

[0063] The cover structure includes an upper cover 12 and a lower cover 13 that are engaged with each other. The upper cover 12 and the lower cover 13 cooperate with each other to cover the disassembly structure, the locking plate 6 and the plug-in portion 4.

[0064] When the upper cover 12 and the lower cover 13 are engaged with each other and are covered on the opposite ends of the first body 3 and the second body 5, the outer peripheral surface of the cover structure is flush with the outer peripheral surface of the adjacent end of the first body 3 and the outer peripheral surface of the adjacent second body 5, thereby ensuring the integrity of the appearance of the steering wheel when used in the full-width state.

[0065] like Figure 1 、 Figure 5 and Figure 6 As shown, when the steering wheel is in the half-width position, that is, when the upper handlebar 1 and lower steering wheel 2 are separated, decorative covers 14 are respectively provided at each end of the second body 5. The decorative covers 14 are used to cover the locking plate 6 and the opening of the connecting cavity 7 at the end of the second body 5. The outer circumference of the decorative cover 14 is flush with the outer circumference of the adjacent end of the second body 5. The provision of the decorative covers 14 improves the overall appearance of the steering wheel when used in the half-width position, making it more aesthetically pleasing.

[0066] Specifically, the edge of the decorative cover 14 is provided with several buckles, and the outer edge of the opening of the connecting cavity 7 is provided with several slots for the buckles to be embedded. The decorative cover 14 and the end of the second body 5 are connected to each other through the cooperation of the several buckles and the several slots.

[0067] In other embodiments, sheet metal member 811 may not be used. The locking tongue 9 is positioned at the end of the spring away from the base plate 42. A release button 82 is fixedly connected to the spring and is exposed from the interior of the frame structure through an elongated hole defined in the side of the plug-in portion 4. The length of the elongated hole is parallel to the length of the spring. Pressing the release button 82 along the length of the elongated hole compresses the spring, causing it to disengage the locking tongue 9 from the locking hole 10 in the locking plate 6, thereby allowing the locking plate 6 and the plug-in portion 4 to separate from each other.

[0068] In some other embodiments, the sheet metal part 811 and the spring may not be used. Wherein, the disengagement mechanism 8 comprises a disengagement button 82, a lock tongue 9, a connecting block, a locking groove, an unlocking groove, and a sliding groove connecting the locking groove and the unlocking groove, which are arranged on the locking plate 6. The locking groove, the unlocking groove, and the sliding groove are all arranged on the same side of the plug-in portion 4, and the length direction of the sliding groove is perpendicular to the top plate 41. The disengagement button 82 is exposed from the inside of the frame structure through the locking groove or the unlocking groove, and the disengagement button 82 is connected to the lock tongue 9 by the connecting block. The disengagement button 82 can drive the connecting block to slide along the sliding groove between the locking groove and the unlocking groove inside the frame structure. When the disengagement button 82 drives the connecting block to be clamped in the locking groove, the locking tongue 9 penetrates the locking hole 10 on the top plate 41 and the locking hole 10 on the locking plate 6, locking the locking plate 6 and the plug-in part 4; when the disengagement button 82 drives the connecting block to be clamped in the unlocking groove, the locking tongue 9 is driven by the connecting block to disengage the locking hole 10 on the locking plate 6, so that the locking plate 6 and the plug-in part 4 are no longer locked.

[0069] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0070] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A full-width steering wheel and half-width steering wheel autonomous switching mechanism, characterized in that: It comprises an upper handlebar (1), a lower steering wheel (2), a locking tongue (9) and a disengaging mechanism (8); The upper half handle (1) comprises a first body (3) and plug-in portions (4) extending outwards from both ends of the first body (3), wherein the plug-in portion (4) is a frame-shaped structure consisting of at least one top plate (41) and two side plates. The lower half steering wheel (2) comprises a second body (5) and locking plates (6) extending outwards along both ends of the second body (5), and connecting cavities (7) for at least partially accommodating the frame structure are provided at both ends of the second body (5). The top plate (41) and the locking plate (6) are both provided with locking holes (10). When the frame structure is inserted into the connecting cavity (7) and is in the final position, the locking tongue (9) passes through the locking hole (10) after the top plate (41) is aligned with the locking plate (6), thereby achieving a fastened connection between the upper handle (1) and the lower steering wheel (2); The disengagement mechanism (8) includes a biasing assembly (81) disposed inside the frame structure, the biasing assembly (81) being used to drive the locking tongue (9) out of the locking hole (10) in the locking plate (6) so as to allow the upper handle (1) and the lower steering wheel (2) to be disassembled; The biasing assembly (81) includes a sheet metal part (811) and a fixing pin (812); The fixing pin (812) is fixed on the two side panels, one end of the sheet metal part (811) is fixed on the fixing pin (812) by winding, and the other end forms an elastic part that fits the inner wall of the top panel (41), and the locking tongue (9) is fixed on the elastic part.

2. The full-width steering wheel and half-width steering wheel autonomous switching mechanism according to claim 1, characterized in that: The disengagement mechanism (8) further comprises a disengagement button (82) and an elastic reset member (83); a disengagement hole (11) is provided on the top plate (41); the disengagement button (82) passes through the disengagement hole (11) and is fixed on the elastic portion; the elastic reset member (83) is arranged on a side of the sheet metal part (811) away from the disengagement button (82) and always pushes the elastic portion to fit inside the top plate (41).

3. The full-width steering wheel and half-width steering wheel autonomous switching mechanism according to claim 2, characterized in that: The plug-in portion (4) is further provided with a bottom plate (42), the bottom plate (42) being arranged away from the top plate (41), and the bottom plate (42), the top plate (41) and at least two side plates together forming the frame structure; Both ends of the elastic reset member (83) abut against the bottom plate (42) and the sheet metal member (811) respectively.

4. The full-width steering wheel and half-width steering wheel autonomous switching mechanism according to claim 3, characterized in that: The frame structure is formed by the top plate (41), the bottom plate (42) and four side plates; A gap is left between the bottom plate (42) and one side plate to form an installation opening (43) for the dissociation mechanism (8) to be installed.

5. The full-width steering wheel and half-width steering wheel autonomous switching mechanism according to claim 2, characterized in that: When the upper handlebar (1) and the lower steering wheel (2) are fastened together, the disengagement button (82) is exposed between the opposite ends of the first body (3) and the second body (5).

6. The full-width steering wheel and half-width steering wheel autonomous switching mechanism according to claim 2, characterized in that: The disengagement button (82) and the elastic reset member (83) are both arranged away from the sheet metal member (811) and the winding end of the fixing pin (812).

7. The full-width steering wheel and half-width steering wheel autonomous switching mechanism according to claim 6, characterized in that: The locking tongue (9) is arranged between the disengagement button (82) and the winding end.

8. The full-width steering wheel and half-width steering wheel autonomous switching mechanism according to any one of claims 1 to 7, characterized in that: When the upper handlebar (1) and the lower steering wheel (2) are disassembled and separated; Both ends of the second body (5) are respectively covered with decorative covers (14), and the decorative covers (14) are used to cover the locking plate (6) and the opening of the connecting cavity (7) located at the end of the second body (5), and the outer peripheral surface of the decorative cover (14) is flush with the outer peripheral surface of the adjacent end of the second body (5).

9. The full-width steering wheel and half-width steering wheel autonomous switching mechanism according to any one of claims 1 to 7, characterized in that: When the upper handlebar (1) and the lower steering wheel (2) are fastened together, a cover structure is provided at the opposite ends of the first body (3) and the second body (5); The cover structure comprises an upper cover (12) and a lower cover (13) that are mutually engaged, and the upper cover (12) and the lower cover (13) cooperate with each other to cover the disengagement mechanism (8), the locking plate (6) and the plug-in portion (4); The outer peripheral surface of the cover structure is flush with the outer peripheral surface of the adjacent end of the first body (3) and the outer peripheral surface of the adjacent end of the second body (5).

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