Driver airbag metal housing

Abstract

The utility model relates to vehicle safety technical field, concretely relates to a driver safety air bag metal box body, including metal box body, safety air bag sets up in metal box body, metal box body upside is provided with metal pressing plate, metal box body downside is provided with the cover, the clamping mechanism is set between metal box body and metal pressing plate, cover, metal box body and cover are clamped through the clamping mechanism, the limiting mechanism is set between metal box body and metal pressing plate, and the position of metal pressing plate and metal box body is limited through the limiting mechanism, and the clamping is adjusted through the adjustment clamping mechanism position to adjust the placement, makes the clamping mechanism clamping more stable, thereby improves product quality.

Description

Technical Field

[0001] This utility model relates to the field of vehicle safety technology, and in particular to a driver's airbag metal housing. Background Technology

[0002] With the rapid development of the automotive industry, the requirements for vehicle safety performance are constantly increasing. As one of the most widely used safety protection devices, airbags can rapidly inflate and provide protection for occupants during a collision. When a car accident or impact occurs, the driver's airbag deploys to provide protection.

[0003] Existing airbag housings and covers use a hook-and-loop connection method with clips and connecting holes. Connecting holes are made in the cover, and clips are stamped into the airbag housing. These clips extend into the connecting holes and hook onto one side of the holes for secure fastening. However, because the clips themselves may have some elasticity after stamping, they are prone to misalignment, making assembly between the housing and the cover difficult and causing loosening after assembly, thus affecting product yield. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a metal housing for driver's airbags to solve the problem that the stamping of the clamps on the metal housing is prone to problems that affect the stability of subsequent assembly.

[0005] To achieve the above objectives, this utility model provides a driver's airbag metal housing, including a metal housing body, an airbag disposed within the metal housing body, a metal pressure plate disposed on the upper side of the metal housing body, a decorative cover disposed on the lower side of the metal housing body, a locking mechanism disposed between the metal housing body, the metal pressure plate, and the decorative cover, the metal housing body and the decorative cover being locked together by the locking mechanism, and a limiting mechanism disposed between the metal housing body and the metal pressure plate, the limiting mechanism limiting the positions of the metal pressure plate and the metal housing body.

[0006] A further improvement is that the metal pressure plate is locked to the metal box body by bolts.

[0007] A further improvement is that the locking mechanism includes a locking foot connected to the side of the cover, a corresponding connecting hole is provided on the side of the metal box body, the locking foot passes through the connecting hole and locks into the metal box body, and a corresponding baffle is provided on the side of the metal pressure plate, the baffle and the locking foot are fitted with a gap.

[0008] A further improvement is that an elastic plate is installed on one side of the connecting hole, a pressing block is installed on the side of the elastic plate, and a limit plate is connected to the outside of the clamping foot.

[0009] A further improvement is that the limiting mechanism includes a first reinforcing rib disposed on the metal box body and a second reinforcing rib disposed on the metal pressure plate, with the first and second reinforcing ribs positioned correspondingly.

[0010] A further improvement is that a guide post is installed on the metal box body, and a guide hole is correspondingly opened on the metal pressure plate. The guide post passes through the guide hole and a spring is sleeved on the guide post.

[0011] A further improvement is that a hook is installed at the end of the guide post.

[0012] The beneficial effects of this utility model are as follows: By setting a locking foot on the cover and opening a connecting hole on the metal box body, the position of the locking foot is changed from the metal box body to the cover, optimizing the locking foot structure, reducing the thin iron area, thereby reducing the generation of stamping deformation and improving the stability of subsequent snap-fitting; Furthermore, by setting an elastic plate and a pressing block, when the locking foot is engaged, the limiting plate pushes the elastic plate, causing the pressing block to press against the locking foot, so that the locking foot can be tightly engaged on the metal box body, thereby ensuring the stability of the connection between the cover and the metal box body; In addition, a baffle is set on the side of the metal pressure plate, and the position of the locking foot is limited by the gap fit between the baffle and the locking foot, thereby reducing the shaking of the locking foot, thereby improving the stability of snap-fitting and thus improving product quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the assembly structure of the metal box body, metal pressure plate, and decorative cover according to an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the metal box body structure according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the metal pressure plate structure of an embodiment of the present utility model;

[0017] Figure 4 This is a cross-sectional view of the assembly structure according to an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the clip structure in an embodiment of the present utility model.

[0019] The diagram is marked as follows:

[0020] 1. Metal box body; 2. Metal pressure plate; 3. Decorative cover; 4. Clip foot; 5. Connecting hole; 6. Retaining wall; 7. Elastic plate; 8. Extrusion block; 9. Limiting plate; 10. First reinforcing rib; 11. Second reinforcing rib; 12. Guide post; 13. Guide hole; 14. Spring; 15. Hook. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figure 1-4 As shown, a driver's airbag metal housing includes a metal housing body 1, with the airbag disposed inside the metal housing body 1. A metal pressure plate 2 is provided on the upper side of the metal housing body 1, and the metal pressure plate 2 is locked to the metal housing body 1 by bolts. The metal pressure plate 2 is integrally formed to reduce structural torsion during installation. A decorative cover 3 is fitted on the lower side of the metal housing body 1.

[0024] like Figure 2 , 4As shown in Figure 5, a locking mechanism is provided between the metal box body 1 and the decorative cover 3. The metal box body 1 and the decorative cover 3 are locked together by the locking mechanism. The locking mechanism includes locking feet 4 connected to the side of the decorative cover 3. A corresponding connecting hole 5 is provided on the side of the metal box body 1. The locking feet 4 pass through the connecting hole 5 and lock with the metal box body 1. The locking feet 4 on the left and right sides lock with the connecting hole 5 outward, and the locking feet 4 on the front and rear sides lock with the connecting hole 5 inward. A retaining wall 6 is provided on both sides of the metal pressure plate 2. The retaining wall 6 on both sides is fitted with the locking feet 4 on both sides with a gap. The retaining wall 6 limits the position of the locking feet 4, reduces the shaking of the locking feet 4 after locking, and improves the stability of locking. An elastic plate 7 is installed on one side of the connecting hole 5 on both the front and rear sides. An extrusion block 8 is installed on the side of the elastic plate 7. A limit plate 9 is connected to the outer side of the locking foot 4 on both the front and rear sides. The locking foot 4 passes through the connecting hole 5 to lock. The limit plate 9 is attached to the outer side of the metal box body 1 to limit the elastic plate 7 and push the elastic plate 7 to drive the extrusion block 8 to fit the locking foot 4, so that the locking foot 4 is tightly locked and the connection stability is improved.

[0025] A limiting mechanism is provided between the metal box body 1 and the metal pressure plate 2 to limit the position of the metal pressure plate 2 and the metal box body 1. The limiting mechanism includes a first reinforcing rib 10 provided on the metal box body 1 and a second reinforcing rib 11 provided on the metal pressure plate 2. The first reinforcing rib 10 and the second reinforcing rib 11 are positioned correspondingly. When the metal box body 1 and the metal pressure plate 2 are installed, the first reinforcing rib 10 and the second reinforcing rib 11 overlap to limit the position and ensure the accuracy of the installation position.

[0026] A guide post 12 is installed on the metal box body 1. The guide post 12 is riveted. A guide hole 13 is opened on the metal pressure plate 2. The guide post 12 passes through the guide hole 13. The guide hole 13 can reduce the deformation of the guide post 12 caused by ignition. A spring 14 is sleeved on the guide post 12. A hook 15 is installed at the end of the guide post 12. The hook 15 is engaged and fixed with the hook hole on the steering wheel frame. The spring 14 maintains the preload so that it will not loosen when there is no external force interference, thus improving the stability of the assembly.

[0027] Specifically, the metal box body 1 and the cover 3 are snapped together. The clip 4 passes through the connecting hole 5 and hooks onto the metal box body 1. The limiting plate 9 is attached to the outside of the metal box body 1. The limiting plate 9 pushes the elastic plate 7 to the side of the clip 4. The pressing block 8 acts to hold the clip 4 tightly against the side of the connecting hole 5 for hooking, thereby improving the stability of the connection. The metal pressure plate 2 is positioned on the metal box body 1 by the overlapping of the first reinforcing rib 10 and the second reinforcing rib 11 and is locked with bolts. The retaining wall 6 limits the clip 4 by the gap fit with it, further ensuring the stability of the clip 4 and reducing shaking. The metal box body 1 is snapped together with the steering wheel frame by the guide post 12 and the hook 15, thereby realizing the installation of the metal box body 1.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A driver's airbag metal housing, comprising a metal housing body (1), wherein the airbag is disposed within the metal housing body (1), characterized in that, A metal pressure plate (2) is provided on the upper side of the metal box body (1), and a decorative cover (3) is fitted on the lower side of the metal box body (1). A locking mechanism is provided between the metal box body (1) and the decorative cover (3). The metal box body (1), the metal pressure plate (2), and the decorative cover (3) are locked together by the locking mechanism. A limiting mechanism is provided between the metal box body (1) and the metal pressure plate (2). The positions of the metal pressure plate (2) and the metal box body (1) are limited by the limiting mechanism.

2. The driver's airbag metal housing according to claim 1, characterized in that, The metal pressure plate (2) is bolted to the metal box body (1).

3. The driver's airbag metal housing according to claim 1, characterized in that, The locking mechanism includes a locking foot (4) connected to the side of the cover (3), and a corresponding connecting hole (5) is provided on the side of the metal box body (1). The locking foot (4) passes through the connecting hole (5) and locks with the metal box body (1). A corresponding retaining wall (6) is provided on the side of the metal pressure plate (2), and the retaining wall (6) and the locking foot (4) are fitted with a gap.

4. The driver's airbag metal housing according to claim 3, characterized in that, An elastic plate (7) is installed on one side inside the connecting hole (5), and an extrusion block (8) is installed on the side of the elastic plate (7). A limit plate (9) is connected to the outside of the clamping foot (4).

5. A driver's airbag metal housing according to claim 1, characterized in that, The limiting mechanism includes a first reinforcing rib (10) set on the metal box body (1) and a second reinforcing rib (11) set on the metal pressure plate (2), with the first reinforcing rib (10) and the second reinforcing rib (11) positioned correspondingly.

6. A driver's airbag metal housing according to claim 1, characterized in that, A guide post (12) is installed on the metal box body (1), and a guide hole (13) is opened on the metal pressure plate (2). The guide post (12) passes through the guide hole (13), and a spring (14) is sleeved on the guide post (12).

7. A driver's airbag metal housing according to claim 6, characterized in that, The guide post (12) is equipped with a hook (15) at its end.

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