Steering wheel with compact connection structure

Abstract

The utility model provides a steering wheel with a compact connecting structure, which is applied to the technical field of steering wheels, and is characterized in that an elastic rod mounted on a steering wheel framework always enables at least part of the section of the elastic rod to move towards a mounting position in a vertical projection area where an inserting hole is located by utilizing the elastic acting force of the elastic rod; a hook at the bottom of the safety air bag shell is inserted into the inserting hole and is fixedly clamped with the elastic rod located at the installation position, a horn column for containing a horn fixing contact is arranged on the steering wheel framework, and the horn fixing contact can start a horn after making contact with a movable contact arranged at the bottom of the safety air bag shell to be conducted. The elastic rod can abut against the horn column to be limited after being moved out of the installation position by overcoming the elastic effect of the elastic rod under the dismounting force. According to the steering wheel, the position of the horn column and the bias stroke of the elastic rod are considered, the layout is reasonable, the function of a single limiting point and the function of the horn column needed in the past are integrated into one structure, and the effect that the steering wheel structure is more compact is achieved.

Description

Technical Field

[0001] This application relates to the technical field of steering wheels, and particularly to a steering wheel with a compact connection structure. Background Art

[0002] Currently, the development of automotive components is becoming more and more miniaturized and lightweight, and the appearance shapes of steering wheels and airbags have also become more compact and small.

[0003] The connection structures of existing conventional steering wheels and airbags are often large in size and can no longer meet the requirements of customers' rich and diverse styling styles.

[0004] Based on this, a new technical solution is needed. Utility Model Content

[0005] In view of this, the embodiments of this specification provide a steering wheel with a compact connection structure.

[0006] The embodiments of this specification provide the following technical solutions:

[0007] The embodiments of this specification provide a steering wheel with a compact connection structure, including a steering wheel skeleton and an airbag housing. The steering wheel skeleton has a socket and is installed with an elastic rod, and the elastic rod always moves at least part of its section towards the installation position within the vertical projection area where the socket is located by using its own elastic acting force. A hook is provided at the bottom of the airbag housing, and the hook is used to insert into the socket and engage and fix with the elastic rod in the installation position.

[0008] A horn column for accommodating horn fixed contacts is provided on the steering wheel skeleton. The horn fixed contacts can be in contact conduction with movable contacts provided at the bottom of the airbag housing to start the horn. After the elastic rod is removed from the installation position by overcoming its own elastic force under a disassembly force, it can abut against the horn column for limiting.

[0009] Preferably, the socket includes two symmetrically arranged first sockets and second sockets, and the horn column includes two symmetrically arranged first horn columns and second horn columns. The elastic rod is a U-shaped integral rod, and the elastic rod includes a first elastic section corresponding to the first socket, a second elastic section corresponding to the second socket, and a connecting section connecting the first elastic section and the second elastic section. When the elastic rod is in the installation position, the first elastic section and the second elastic section are in a state of being compressed inward. After the first elastic section and the second elastic section are further compressed inward respectively by a disassembly force, the first elastic section can abut against the first horn column for limiting, and the second elastic section can abut against the second horn column for limiting.

[0010] Preferably, a first hooking section is formed at a corresponding part of the first elastic section and the first jack; a second hooking section is formed at a corresponding part of the second elastic section and the second jack;

[0011] The extending direction of the first hooking section and the connecting line direction between the axis of the first horn column and the center of the first jack form an included angle α greater than or equal to 70°, and / or,

[0012] The extending direction of the second hooking section and the connecting line direction between the axis of the second horn column and the center of the second jack form an included angle β greater than or equal to 70°.

[0013] Preferably, the jack further includes a third jack corresponding to the connecting section, a third hooking section is formed at a corresponding part of the connecting section and the third jack, and the first hooking section, the second hooking section and the third hooking section are located at three vertices of the same triangle.

[0014] Preferably, three bosses respectively penetrated by the three jacks one by one are fixed on the steering wheel skeleton, and the three bosses are respectively formed with gaps, the first hooking section, the second hooking section and the third hooking section are respectively clamped into the corresponding gaps, and the gaps communicate with the corresponding jacks;

[0015] An elastic compression member is sleeved on the hook, and one end of the elastic compression member abuts against the bottom of the airbag housing, and the other end of the elastic compression member abuts against the boss.

[0016] Preferably, the side of the boss facing away from the gap is arranged in a plane, and the plane of the side of the boss facing away from the gap communicates with the jack.

[0017] Preferably, the first hooking section and the second hooking section respectively abut against the ends of the corresponding gaps away from the center of the steering wheel;

[0018] The third hooking section abuts against both ends of the corresponding gap.

[0019] Preferably, the first elastic section has a first guiding arm, and the second elastic section has a second guiding arm; two guiding columns are fixed on the steering wheel skeleton, and the two guiding columns respectively abut against the sides of the first guiding arm and the second guiding arm facing away from each other, and are configured to, when the elastic rod is subjected to a disassembly force, move out of the installation position by overcoming the elastic action of the elastic rod itself by abutting against the two guiding columns.

[0020] Preferably, the first elastic section also has a first limiting arm, and the second elastic section also has a second limiting arm, and the first limiting arm and the second limiting arm are connected at both ends of the connecting section; two limiting plates are fixed on the steering wheel frame, and the two limiting plates are respectively abutted against the sides of the first limiting arm and the second limiting arm that are away from each other, for limiting the connecting section.

[0021] Preferably, the speaker posts are arranged at multiple locations, wherein some of the speaker posts in the multiple locations are used for abutment and limiting of the elastic rod;

[0022] The bottom of the airbag housing is also provided with a positive electrode plug-in sheet, and the steering wheel frame is also provided with a negative electrode grounding sheet, and the positive electrode plug-in sheet and the negative electrode grounding sheet are connected to enable the movable contact and the horn fixed contact to be conductive;

[0023] The steering wheel also includes a shock absorbing system, which includes a shock absorbing mass block, a plurality of fixing holes on the steering wheel frame, and a positioning column on the steering wheel frame; the plurality of rubber heads of the shock absorbing mass block are respectively plugged and fixed in the plurality of fixing holes, and the positioning column is plugged and fixed to the shock absorbing mass block.

[0024] Compared with the prior art, the at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects:

[0025] The present application enables the elastic rod to overcome its own elastic effect and move out of the installation position under the disassembly force, and can abut against the speaker column to limit the position after being detached from the hook. While ensuring that the speaker column can activate the speaker function, the speaker column is used as a limit point to limit the bias stroke of the elastic rod. The position of the speaker column and the bias stroke of the elastic rod are taken into account, and a reasonable layout is used to combine the separate limit points and speaker column functions that were previously required into one structure, thereby achieving the effect of making the steering wheel structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments 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 these drawings without paying creative work.

[0027] Figure 1 It is a connection diagram of the steering wheel of the present application;

[0028] Figure 2 It is a schematic diagram of the structure of the speaker system of the present application;

[0029] Figure 3 It is a schematic diagram of the composition of the shock absorption system of the present application;

[0030] Figure 4 is a schematic diagram of the composition of the airbag and steering wheel fixing system of this application;

[0031] Figure 5 is a schematic diagram highlighting the boss and elastic rod of a conventional steering wheel in the related art;

[0032] Figure 6 is a schematic diagram highlighting the boss and elastic rod structure of the steering wheel of this application;

[0033] Figure 7 is a schematic diagram of the connection cross-section of the "I"-shaped boss and elastic rod of this application;

[0034] Figure 8 is a schematic diagram of the connection cross-section of the "H"-shaped boss and elastic rod of this application;

[0035] Figure 9 is a schematic diagram of the disassembly of the elastic rod of this application limited by the horn column;

[0036] Figure 10 is a schematic diagram highlighting the included angle α and included angle β of this application;

[0037] Figure 11 is a schematic diagram of the overall structure of the steering wheel of this application.

[0038] Reference numerals: 1, steering wheel skeleton; 2, airbag housing; 3, jack; 31, first jack; 32, second jack; 33, third jack; 4, elastic rod; 41, first elastic section; 411, first hook section; 412, first guiding arm; 413, first supporting arm; 414, first connecting arm; 415, first limiting arm; 42, second elastic section; 421, second hook section; 422, second guiding arm; 423, second supporting arm; 424, second connecting arm; 425, second limiting arm; 43, connecting section; 431, third hook section; 5, hook; 6, horn column; 61, first horn column; 62, second horn column; 7, elastic compression member; 8, boss; 9, notch; 10, guiding column; 11, limiting plate; 12, positive plug-in piece; 13, negative grounding piece; 14, damping mass block; 15, fixing hole; 16, positioning column; 17, steering wheel wiring harness; 18, installation limiting point; 19, through hole. Detailed implementation manners

[0039] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0040] The following describes the implementation modes of the present application through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. The present application can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the 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 creative efforts belong to the scope of protection of the present application.

[0041] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be obvious that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present application, those skilled in the art should understand that one 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 aspects described herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0042] It should also be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner. The diagrams only show the components related to the present application, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in its actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0043] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0044] Through in-depth research and improvement exploration of the steering wheel and its structure, the applicant found that: as Figure 5 shown, the conventional boss 8 is a semi-open structure, occupying a relatively large space; the boss 8 of the common steering wheel skeleton 1 is "C"-shaped, and the end of the elastic rod 4, that is, the end of the steel wire, is basically vertical, resulting in a relatively large space occupied by the entire design structure, which can no longer meet the requirements of customers for miniaturized styling.

[0045] Based on this, the following combines the accompanying drawings to illustrate the technical solutions provided by the embodiments of the present application.

[0046] An embodiment of the present specification provides a steering wheel with a compact connection structure, as Figure 1 and Figure 11 shown, which includes a steering wheel skeleton 1 and an airbag housing 2. The steering wheel skeleton 1 has a jack 3 and is installed with an elastic rod 4. The elastic rod 4 always moves at least a part of its section to the installation position within the vertical projection area where the jack 3 is located by using its own elastic force. A hook 5 is provided at the bottom of the airbag housing 2. The hook 5 is used to insert into the jack 3 and engage and fix with the elastic rod 4 at the installation position.

[0047] A horn column 6 for accommodating horn fixed contacts is provided on the steering wheel skeleton 1. The horn fixed contacts can be in contact with the movable contacts provided at the bottom of the airbag housing 2 to conduct and start the horn. After the elastic rod 4 is subjected to a disassembly force and moves out of the installation position by overcoming its own elastic force, it can abut against the horn column 6 for limiting.

[0048] Specifically, the elastic rod 4 is, for example, a fixed steel wire, etc. The hook 5 can also be called an airbag hanging corner. The vertical projection area where the jack 3 is located can be understood as the projection area perpendicular to the cross-section of the jack 3. The elastic rod 4 is press-fitted and installed on the steering wheel skeleton 1 by using its own elastic force. There is an installation position for at least a part of the section of the elastic rod 4 within the vertical projection area where the jack 3 is located. The engagement and fixation between the hook 5 and the elastic rod 4 is, for example, the hook 5 is hooked and fixed with the elastic rod 4. By pressing the airbag, the airbag housing 2 moves, and the movable contacts move with the airbag housing 2 to contact and conduct the horn fixed contacts to start the horn. After the elastic rod 4 is subjected to a disassembly force and moves to disengage from the hook 5 by overcoming its own elastic force, it can abut against the horn column 6 for limiting. The present application takes into account the position of the horn column 6 and the biasing stroke of the elastic rod 4, makes a reasonable layout, integrates the previous separate limiting point and the function of the horn column 6 into one structure, and achieves the effect of making the steering wheel structure more compact.

[0049] In one embodiment, as Figure 6 and Figure 9 shown, the jack 3 includes two symmetrically arranged first jacks 31 and second jacks 32, and the horn column 6 includes two symmetrically arranged first horn columns 61 and second horn columns 62. The elastic rod 4 is a U-shaped integral rod, and the elastic rod 4 includes a first elastic section 41 corresponding to the first jack 31, a second elastic section 42 corresponding to the second jack 32, and a connecting section 43 connecting the first elastic section 41 and the second elastic section 42. When the elastic rod 4 is in the installation position, the first elastic section 41 and the second elastic section 42 are in a state of being compressed inward. After the first elastic section 41 and the second elastic section 42 are further compressed inward respectively by the disassembly force, the first elastic section 41 can abut against the first horn column 61 for limiting, and the second elastic section 42 can abut against the second horn column 62 for limiting.

[0050] Specifically, the safe positions of at least partial regions of the first elastic section 41 and the second elastic section 42 are respectively located within the vertical projection regions where the corresponding jacks 3 are located. By virtue of its own elastic force, the elastic rod 4 always moves at least partial sections of the first elastic section 41 and the second elastic section 42 towards the installation positions within the vertical projection regions where the corresponding jacks 3 are located. The number of hooks 5 is set according to the number of jacks 3. The hooks 5 are inserted into the corresponding jacks 3 and are snap-fixed with the elastic rod 4 in the corresponding installation positions. The first elastic section 41 and the second elastic section 42 are in a compressed state within the U-shaped elastic rod 4. After the first elastic section 41 and the second elastic section 42 are compressed inward by the disassembly force and move out of the corresponding installation positions, they can abut against and be limited by the corresponding horn columns 6. The first horn column 61 and the second horn column 62 serve as limit columns and can limit the moving distances of the first elastic section 41 and the second elastic section 42, so as to prevent excessive disassembly of the elastic rod 4.

[0051] In one embodiment, as Figure 1 and Figure 6 shown, a first hook section 411 is formed at the corresponding part of the first elastic section 41 and the first jack 31; a second hook section 421 is formed at the corresponding part of the second elastic section 42 and the second jack 32. The first hook section 411 and the second hook section 421 are respectively snap-fixed with the corresponding hooks 5. As Figure 10 shown, the included angle α formed by the extending direction of the first hook section 411 and the connecting line direction between the axis of the first horn column 61 and the center of the first jack 31 is greater than or equal to 70°, and / or the included angle β formed by the extending direction of the second hook section 421 and the connecting line direction between the axis of the second horn column 62 and the center of the second jack 32 is greater than or equal to 70°. Among them, the included angle α and the included angle β can optimally be 90°.

[0052] As Figure 6 and Figure 9 shown, since there are through holes 19 on the steering wheel skeleton 1, when setting the horn columns 6 for abutting and limiting the elastic rod 4, the through holes 19 need to be avoided. The first horn column 61 and the second horn column 62 are arranged on both sides of the through hole 19. Therefore, by obliquely arranging the first hook section 411 and the second hook section 421, the vertical length from the first horn column 61 to the first hook section 411 can be increased, and the vertical length from the second horn column 62 to the second hook section 421 can be increased.

[0053] In one embodiment, as Figure 1 and Figure 6 shown, the jack 3 further includes a third jack 33 corresponding to the connecting section 43. A third hook section 431 is formed at the corresponding part of the connecting section 43 and the third jack 33. The first hook section 411, the second hook section 421, and the third hook section 431 are located at the three vertices of the same triangle. The third hook section 431 is snap-fixed with the corresponding hook 5.

[0054] In one embodiment, as shown in Figure 1 , Figure 6 and Figure 7 , there are three bosses 8 fixed on the steering wheel skeleton 1, which are respectively penetrated by three jacks 3 in a one-to-one correspondence, and the three bosses 8 are respectively formed with notches 9. The first hook section 411, the second hook section 421 and the third hook section 431 are respectively clamped into the corresponding notches 9, and the notches 9 communicate with the corresponding jacks 3.

[0055] As shown in Figure 1 and Figure 4 , elastic compression members 7 are sleeved on the hooks 5, one end of the elastic compression member 7 abuts against the bottom of the airbag housing 2, and the other end of the elastic compression member 7 abuts against the corresponding boss 8. The elastic compression member 7 is, for example, a compression spring. The hook 5 passes through the compression spring and is connected to the fixing wire. The elastic force of the compression spring makes the connection between the airbag and the steering wheel reliable and does not cause looseness.

[0056] In one embodiment, as shown in Figure 1 and Figure 7 , the side of the boss 8 facing away from the notch 9 is arranged in a plane, and the plane of the side of the boss 8 facing away from the notch 9 communicates with the corresponding jack 3.

[0057] In one embodiment, as shown in Figure 6 and Figure 7 , the first hook section 411 and the second hook section 421 respectively abut against the ends of the corresponding notches 9 away from the center of the steering wheel; the third hook section 431 abuts against both ends of the corresponding notch 9. That is, the end of the elastic rod 4 abutting against the notch 9 is the installation limit point 18 of the elastic rod 4.

[0058] In one embodiment, as shown in Figure 6 and Figure 7 , the first elastic section 41 has a first guiding arm 412, and the second elastic section 42 has a second guiding arm 422; there are two guiding columns 10 fixed on the steering wheel skeleton 1, and the two guiding columns 10 respectively abut against the sides of the first guiding arm 412 and the second guiding arm 422 facing away from each other, and are configured such that when the elastic rod 4 is subjected to a disassembly force, it overcomes the elastic action of the elastic rod 4 itself and moves out of the installation position by abutting against the two guiding columns 10. The part where the elastic rod 4 abuts against the guiding column 10 is also the installation limit point 18 of the elastic rod 4.

[0059] In one embodiment, as shown in Figure 6 and Figure 8As shown, the first elastic section 41 further has a first limiting arm 415, and the second elastic section 42 further has a second limiting arm 425. The first limiting arm 415 and the second limiting arm 425 are connected to both ends of the connecting section 43. Two limiting plates 11 are fixed on the steering wheel skeleton 1, and the two limiting plates 11 respectively abut against the sides of the first limiting arm 415 and the second limiting arm 425 facing away from each other, for limiting the connecting section 43. The two limiting plates 11 can be integrally arranged on both sides of the boss 8 corresponding to the third hooking section 431.

[0060] In one embodiment, as Figure 6 shown, the first elastic section 41 further has a first support arm 413 and a first connecting arm 414, and the second elastic section 42 further has a second support arm 423 and a second connecting arm 424. Both ends of the third hooking section 431 are respectively connected to one end of the first limiting arm 415 and one end of the second limiting arm 425. The other end of the first limiting arm 415 is connected to one end of the first connecting arm 414. The other end of the first connecting arm 414 is connected to one end of the first support arm 413. The other end of the first support arm 413 is connected to one end of the first guiding arm 412. The other end of the first guiding arm 412 is connected to the first hooking section 411. The other end of the second limiting arm 425 is connected to one end of the second connecting arm 424. The other end of the second connecting arm 424 is connected to one end of the second support arm 423. The other end of the second support arm 423 is connected to one end of the second guiding arm 422. The other end of the second guiding arm 422 is connected to the second hooking section 421. Among them, the first support arm 413, the second support arm 423, and the third hooking section 431 can all be connected to a support rod for facilitating the pushing of the elastic rod 4, which is convenient for applying a disassembly force, and a limiting groove for limiting and guiding the pushing of the support rod is formed on the steering wheel skeleton 1.

[0061] In one embodiment, the steering wheel includes a horn system, a shock absorption system, and a safety airbag and steering wheel fixing system.

[0062] As Figure 1 and Figure 2 shown, the horn system includes a positive plug piece of the safety airbag, a horn column 6 of the steering wheel, and a negative grounding piece 13 of the steering wheel. The horn columns 6 are provided in multiple places. Among them, some of the multiple horn columns 6 are used for abutting and limiting the elastic rod 4, that is, the first horn column 61 and the second horn column 62. The remaining horn columns 6 can be fixedly symmetrically connected to both sides of the two limiting plates 11 facing away from each other. The horn columns 6 can be a total of four, and the horn columns 6 are negative.

[0063] At the bottom of the airbag housing 2, there is also a positive plug piece 12, and on the steering wheel skeleton 1, there is also a negative grounding piece 13. The positive plug piece 12 and the negative grounding piece 13 are connected to enable conduction between the movable contact and the horn fixed contact. The positive plug piece and the negative grounding piece 13 are connected through the steering wheel wire harness 17 and the vehicle's spiral connector. When the airbag is pressed, the metal insert on the airbag housing 2 and the horn column 6 cause the horn to conduct electricity.

[0064] As Figure 1 and Figure 3 shown, the shock absorption system includes a shock absorption mass 14, multiple fixing holes 15 on the steering wheel skeleton 1, and a positioning post 16 on the steering wheel skeleton 1; multiple rubber heads of the shock absorption mass 14 are respectively inserted and fixed in the multiple fixing holes 15 one by one, and the positioning post 16 is inserted and fixed with the shock absorption mass 14. The fixing hole 15 is a stepped hole. As Figure 3 shown, for the implementation method of the shock absorption block system, the rubber heads on the shock absorption mass 14 are fixed in four stepped holes on the steering wheel skeleton 1. The shaking amount of the whole vehicle can absorb part of the energy by the shock absorption mass 14, reducing the shaking of the airbag and the steering wheel. To avoid excessive shaking of the shock absorption mass 14, two positioning posts 16 are provided on the steering wheel skeleton 1.

[0065] As Figure 1 and Figure 4 shown, the airbag and steering wheel fixing system includes a boss 8 fixed on the steering wheel skeleton 1, a fixing wire that can be plastic-coated or not, a compression spring, and an airbag hanging corner.

[0066] This application redesigned the airbag and steering wheel fixing system, changing the conventional semi-open boss 8 to a fully open boss 8, such as the "I"-shaped boss 8 shown in Figure 7 and the "H"-shaped boss 8 shown in Figure 8 . Both sides of the boss 8 are open designs, occupying less space. At the same time, the horn column 6 and the fixing wire are redesigned, making the volume smaller. The horn column 6 is moved towards the airbag, making the entire module connection platform more compact, reducing the part layout volume, and meeting the more demanding styling of the customer's space. Since the horn column 6 is close to the boss 8, the fixing wire is designed in an open-mouth form, with the opening expanding towards both sides. Thus, when installing or disassembling the fixing wire, it will not interfere with the horn column 6. At the same time, because the horn column 6 is close to the boss 8, this design scheme naturally has a fixing wire limiting structure, and there is no need to worry about the problem of the fixing wire being over-disassembled. Among them, the fixing wire matches the boss 8, and the specific design scheme of the fixing wire can be diverse. This scheme only gives an example for illustration. The fixing wire can be a whole section, or it can be two sections or multiple sections, and its specific structure is modified according to the shape of the boss 8.

[0067] The connection structure between the steering wheel and the airbag of the present application occupies less space and has better compatibility with the steering wheel styling. Through the redesigned boss 8, fixed steel wire, positioning post 16 and horn post 6, the overall structure is more concise. Through the improvement of the horn system, shock absorption system, airbag and steering wheel fixing system, the overall connection structure can be made more compact in appearance, meeting the trend requirements of the host factory for the miniaturization of the steering wheel styling.

[0068] In this specification, for the same or similar parts among the various embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the embodiments described later, the description is relatively simple, and reference can be made to the corresponding parts of the foregoing embodiments for the relevant content.

[0069] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A steering wheel with a compact connection structure, comprising a steering wheel frame (1) and an airbag housing (2), wherein the steering wheel frame (1) has a plug hole (3) and is provided with an elastic rod (4), and the elastic rod (4) utilizes its own elastic force to always move at least a portion of the elastic rod (4) to an installation position within a vertical projection area where the plug hole (3) is located, and a hook (5) is provided at the bottom of the airbag housing (2), and the hook (5) is used to be inserted into the plug hole (3) and to be engaged and fixed with the elastic rod (4) at the installation position, characterized in that: The steering wheel frame (1) is provided with a speaker column (6) for accommodating a fixed speaker contact. The fixed speaker contact can start the speaker after contacting and conducting with a movable contact arranged at the bottom of the airbag housing (2). The elastic rod (4) is subjected to a disassembly force and overcomes its own elastic effect to move out of the installation position, and can abut against the speaker column (6) for limiting position.

2. The steering wheel with a compact connection structure according to claim 1, characterized in that: The plug hole (3) comprises a first plug hole (31) and a second plug hole (32) symmetrically arranged at two locations, and the speaker column (6) comprises a first speaker column (61) and a second speaker column (62) symmetrically arranged at two locations. The elastic rod (4) is a U-shaped integrated rod, and the elastic rod (4) comprises a first elastic section (41) corresponding to the first plug hole (31), a second elastic section (42) corresponding to the second plug hole (32), and a connecting section (43) connecting the first elastic section (41) and the second elastic section (42). When the elastic rod (4) is in the installation position, the first elastic section (41) and the second elastic section (42) are in an inwardly compressed state. After the first elastic section (41) and the second elastic section (42) are further compressed inwardly by the disassembly force respectively, the first elastic section (41) can abut against the first speaker column (61) to limit the position, and the second elastic section (42) can abut against the second speaker column (62) to limit the position.

3. The steering wheel with a compact connection structure according to claim 2, characterized in that: The first elastic section (41) and the corresponding part of the first plug hole (31) form a first hooking section (411); the second elastic section (42) and the corresponding part of the second plug hole (32) form a second hooking section (421); The angle α formed by the extension direction of the first hooking section (411) and the direction of the line connecting the axis of the first speaker column (61) and the center of the first plug hole (31) is greater than or equal to 70°, and / or, The angle β formed by the extension direction of the second hooking section (421) and the direction of the line connecting the axis of the second speaker column (62) and the center of the second plug hole (32) is greater than or equal to 70°.

4. The steering wheel with a compact connection structure according to claim 3, characterized in that: The socket (3) further comprises a third socket (33) corresponding to the connecting section (43); a third hooking section (431) is formed between the connecting section (43) and the corresponding portion of the third socket (33); the first hooking section (411), the second hooking section (421) and the third hooking section (431) are located at three vertices of the same triangle.

5. The steering wheel with a compact connection structure according to claim 4, characterized in that: The steering wheel skeleton (1) is fixed with three bosses (8) which are respectively penetrated by the three insertion holes (3) in a one-to-one correspondence, and the three bosses (8) are respectively formed with notches (9), the first hooking section (411), the second hooking section (421) and the third hooking section (431) are respectively inserted into the corresponding notches (9), and the notches (9) are connected to the corresponding insertion holes (3); An elastic compression member (7) is sleeved on the hook (5), and one end of the elastic compression member (7) abuts against the bottom of the airbag housing (2), while the other end of the elastic compression member (7) abuts against the boss (8).

6. The steering wheel with a compact connection structure according to claim 5, characterized in that: The side of the boss (8) facing away from the notch (9) is arranged in a plane, and the side plane of the boss (8) facing away from the notch (9) is connected to the insertion hole (3).

7. The steering wheel with a compact connection structure according to claim 5, characterized in that: The first hooking section (411) and the second hooking section (421) are respectively stopped at the ends of the corresponding notches (9) away from the center of the steering wheel; The third hooking section (431) stops at two ends of the corresponding notch (9).

8. The steering wheel with a compact connection structure according to any one of claims 2 to 7, characterized in that: The first elastic section (41) has a first guide arm (412), and the second elastic section (42) has a second guide arm (422); two guide columns (10) are fixed on the steering wheel frame (1), and the two guide columns (10) are respectively stopped at the mutually opposite sides of the first guide arm (412) and the second guide arm (422), and are configured so that the elastic rod (4) is subjected to a disassembly force and moves out of the installation position by stopping at the two guide columns (10) to overcome the elastic action of the elastic rod (4) itself.

9. The steering wheel with a compact connection structure according to claim 8, characterized in that: The first elastic section (41) also has a first limiting arm (415), and the second elastic section (42) also has a second limiting arm (425), and the first limiting arm (415) and the second limiting arm (425) are connected to two ends of the connecting section (43); two limiting plates (11) are fixed on the steering wheel frame (1), and the two limiting plates (11) are respectively abutted against the sides of the first limiting arm (415) and the second limiting arm (425) that are away from each other, so as to limit the connecting section (43).

10. The steering wheel with a compact connection structure according to any one of claims 1 to 7, characterized in that: The speaker posts (6) are arranged at multiple locations, wherein some of the speaker posts (6) in the multiple locations are used for abutment and limiting of the elastic rod (4); The bottom of the airbag housing (2) is also provided with a positive electrode plug-in sheet (12), and the steering wheel frame (1) is also provided with a negative electrode grounding sheet (13), and the positive electrode plug-in sheet (12) and the negative electrode grounding sheet (13) are connected to enable the movable contact and the speaker fixed contact to be electrically connected; The steering wheel also includes a shock absorbing system, which includes a shock absorbing mass block (14), a plurality of fixing holes (15) on the steering wheel frame (1), and a positioning column (16) on the steering wheel frame (1); the plurality of rubber heads of the shock absorbing mass block (14) are respectively plugged and fixed in the plurality of fixing holes (15) in a one-to-one correspondence, and the positioning column (16) is plugged and fixed to the shock absorbing mass block (14).

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