Airbag cover and instrument panel connection structure

Abstract

A connection structure between an airbag cover and an instrument panel belongs to the technical field of automobile parts. The connection structure between the airbag cover and the instrument panel includes a buckle structure connected between a cover body and the instrument panel. The buckle structure includes buckle bodies arranged at intervals along the circumference of the cover body and a plurality of buckle holes provided on the instrument panel. The buckle bodies are connected to the corresponding buckle holes by a bevel matching structure. The beneficial effect of the utility model is that the utility model has a simple structure and high structural strength, can achieve a good matching state between the airbag cover and the instrument panel, and is convenient for multiple disassembly and installation, and is not easy to loosen after installation.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a connection structure of a safety airbag cover and a dashboard. Background Art

[0002] Traditional passenger airbags are mostly seamed airbags, and their covers are specially designed with a clip that corresponds to the dashboard clip base to achieve a tight fit.

[0003] However, the existing buckle structure is generally a barb-shaped buckle. For example, the patent with publication number CN205113238U discloses a frontal safety airbag assembly for a passenger car, including an airbag body, a lower mounting bracket arranged at the lower end of the airbag body, and a cover plate. A hook is arranged on the airbag body, which is hung on the cover plate by the hook. An upper mounting bracket for fixed connection with the instrument panel is arranged on the front side of the airbag body; there are two lower mounting brackets, which are arranged on both sides of the lower end of the airbag body, respectively. The two lower mounting brackets are respectively fixed on the steering support by bolts. The three mounting points of the upper mounting bracket and the two lower mounting brackets form an isosceles triangle. Buckles are arranged around the cover plate, and the cover plate is clamped with the instrument panel by the buckles. The buckles are barb-shaped buckles, which have low structural strength. After the airbag cover plate is assembled with the instrument panel and used for a long time, the airbag cover plate is easy to loosen, and the clamping surface of the barb-shaped buckle is a horizontal plane, which conflicts with the ground level of the instrument panel, and there is a problem that it is difficult to disassemble after clamping.

[0004] Therefore, it is necessary to design a connection structure between the airbag cover and the instrument panel to achieve the purpose of being easy to disassemble and not loose after the airbag cover and the instrument panel are snap-connected. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a connection structure between an airbag cover and an instrument panel, which has a simple structure and high structural strength, can achieve a good fit between the airbag cover and the instrument panel, is convenient for multiple disassembly and installation, and is not easy to loosen after installation.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model to solve its technical problem is: the airbag cover and instrument panel connection structure includes a snap-on structure connected between the cover body and the instrument panel, the snap-on structure includes a snap-on body arranged at intervals along the circumference of the cover body and a plurality of snap-on holes provided on the instrument panel, the snap-on body and the corresponding snap-on holes are snap-on connected by a bevel matching structure.

[0007] The inclined surface matching structure includes a limiting boss I arranged on the buckle body and a limiting boss II arranged on one side of the buckle hole. The limiting boss I and the limiting boss II are matched by inclined surface extrusion and snap connection.

[0008] The limiting boss I is configured as a boss with a triangular cross-sectional shape, and a side of the limiting boss I close to the cover body is configured with an inclined surface I inclined downward.

[0009] The dashboard is provided with an avoidance hole for accommodating an airbag, and the avoidance hole is circumferentially provided with a mounting groove that matches the cover plate body, and the cross-section of the mounting groove is arranged in a step shape, and the side of the mounting groove close to the avoidance hole is higher than the other side, and the snap holes are arranged at intervals along the circumference of the mounting groove.

[0010] The buckle hole is set as a rectangular hole, and the limiting boss II is set on the bottom of the buckle hole near the side of the avoidance hole. The limiting boss II is provided with an inclined surface II that is snap-fitted with the limiting boss I.

[0011] The inclined surface II is provided with a clamping groove along its inclined direction, and the limiting boss I is provided with a clamping boss that is clamped and matched with the clamping groove.

[0012] A plurality of limiting ribs I are arranged on one side of the buckle body away from the limiting boss I, and the plurality of limiting ribs I are in abutment with one side of the buckle hole.

[0013] The limiting rib I includes a horizontal section that is connected to the upper surface of the instrument panel and a vertical section that is connected to the inner wall of the buckle hole.

[0014] Limiting ribs II are respectively arranged on two side surfaces of the buckle body which are perpendicular to a surface on which the limiting boss I is arranged, and the two limiting ribs II are gap-matched with the buckle holes.

[0015] Strip holes are respectively arranged on the buckle bodies on both sides of the limiting boss I.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model provides a connection structure between a safety airbag cover and an instrument panel, by arranging a plurality of snap bodies at circumferential intervals on the cover body, and arranging a plurality of snap holes on the instrument panel, so that the snap bodies are snap-connected with the corresponding snap holes through an inclined surface matching structure, so that they are not easy to loosen after installation, the firmness of the snap connection is improved, and the disassembly is convenient and quick.

[0018] 2. The utility model has the buckle body clipped into the corresponding buckle hole, so that the limiting boss I on the buckle body abuts against the inclined surface of the limiting boss II on one side of the buckle hole, and at the same time, the limiting rib I on the buckle body abuts against one side of the buckle hole, thereby increasing the clamping force and ensuring the firmness of the connection between the cover body and the instrument panel, which is difficult to loosen even under bumpy road conditions; and because the limiting ribs II are respectively arranged on the two side surfaces of the buckle body perpendicular to the side where the limiting boss I is arranged, and the limiting ribs II are clearance-matched with the buckle hole, it is easy to disassemble and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents expressed in each of the drawings of the utility model specification and the marks in the drawings:

[0020] Figure 1 It is a structural schematic diagram of the buckle body of the utility model in an assembled state from one viewing angle;

[0021] Figure 2 It is a structural schematic diagram of another perspective of the assembly state of the buckle body in the utility model;

[0022] Figure 3 It is a structural schematic diagram of one side of the buckle body in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the other side of the buckle body in the utility model;

[0024] Figure 5 It is a structural schematic diagram of the buckle hole in the utility model;

[0025] Figure 6 It is a bottom view of the buckle body in the utility model in the assembled state;

[0026] Figure 7 It is a structural schematic diagram of the instrument panel in the utility model;

[0027] The markings in the above figures are: 1. Cover body, 2. Instrument panel, 21. Snap hole, 22. Limiting boss II, 23. Inclined surface II, 24. Snap groove, 25. Avoidance hole, 26. Installation groove, 3. Snap body, 31. Limiting boss I, 32. Inclined surface I, 33. Snap boss, 34. Limiting rib I, 341. Horizontal section, 342. Vertical section, 35. Limiting rib II, 36. Strip hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The specific implementation scheme of the utility model is as follows: Figure 1 to Figure 7 As shown, the utility model provides a connection structure of an airbag cover and an instrument panel, including a snap structure connected between a cover body 1 and an instrument panel 2, the snap structure including snap bodies 3 arranged at intervals along the circumference of the cover body 1 and a plurality of snap holes 21 provided on the instrument panel 2, the snap bodies 3 are snap-connected with the corresponding snap holes 21 through a bevel matching structure, so that they are not easy to loosen after installation, the firmness of the snap connection is improved, and the disassembly is convenient and quick. Figure 1 to Figure 6 Only one set of structural schematic diagrams showing the matching of the buckle body 3 and the buckle hole 21 is shown.

[0032] Specifically, the buckle body 3 includes a flat foot, and the lower two sides of the foot are provided with inclined guide surfaces, which are conducive to being inserted into the corresponding buckle hole 21. The inclined surface matching structure includes a limiting boss I 31 provided on the foot of the buckle body 3 and a limiting boss II 22 provided on one side of the buckle hole 21, wherein the limiting boss I 31 is integrally formed with the buckle body 3, and the limiting boss II 22 is integrally formed with the instrument panel 2. The limiting boss I 31 and the limiting boss II 22 are engaged by the inclined surface extrusion engagement, so that the limiting boss I 31 and the limiting boss II 22 are mutually extruded after engagement, thereby ensuring the firmness of the engagement.

[0033] The limiting boss Ⅰ31 is set as a boss with a triangular cross-sectional shape, and a side of the limiting boss Ⅰ31 close to the cover body 1 is provided with an inclined surface Ⅰ32 inclined downward. The instrument panel 2 is provided with an avoidance hole 25 for accommodating the airbag, and the avoidance hole 25 is circumferentially provided with a mounting groove 26 that matches the cover body 1. The cross section of the mounting groove 26 is set in a step-like shape, and the side of the mounting groove 26 close to the avoidance hole 25 is higher than the other side. The mounting groove 26 is provided with snap holes 21 at intervals along its circumference, providing space for arranging the limiting boss Ⅱ22 on the side of the snap hole 21 close to the avoidance hole 25. The snap hole 21 is set as a rectangular hole, and a limiting boss Ⅱ22 is provided on the bottom of the snap hole 21 close to the avoidance hole 25. The limiting boss Ⅱ22 is provided with an inclined surface Ⅱ23 that is snap-fitted with the inclined surface Ⅰ32 of the limiting boss Ⅰ31. A snap-fitting groove 24 is arranged on the inclined surface II 23 along its inclined direction, and a snap-fitting boss 33 snap-fitting with the snap-fitting groove 24 is arranged on the limiting boss I 31. Of course, the snap-fitting boss 33 can also be arranged on the inclined surface II 23, and the snap-fitting groove 24 can be arranged on the limiting boss I 31. When the buckle body 3 is inserted into the buckle hole 21, the snap-fitting boss 24 snap-fits with the snap-fitting groove 33 and squeezes each other to cause deformation of the connecting part, which further increases the snap-fitting force and prevents the cover body 1 from loosening.

[0034] Specifically, a plurality of limiting ribs I34 are provided on one side of the buckle body 3 away from the limiting boss I31. The limiting ribs I34 include a horizontal section 341 that contacts and connects with the upper surface of the instrument panel 2 and a vertical section 342 that contacts and connects with the inner wall of the buckle hole 21. The plurality of limiting ribs I34 contact and cooperate with one side of the buckle hole 21. In addition, the limiting boss I31 and the limiting boss II22 cooperate with each other in an inclined surface, which can limit the buckle body 3 from moving in the up and down direction and escaping from the buckle hole 21. The limiting ribs II35 are respectively provided on the two side surfaces of the buckle body 3 that are perpendicular to the side on which the limiting boss I31 is provided. The two limiting ribs II35 are clearance-matched with the buckle hole 21, which facilitates the disassembly and installation of the buckle body 3. The limiting ribs I34 and II35 are provided on the buckle body 3, and the structural strength of the entire buckle body 3 is increased, further ensuring the firmness after installation.

[0035] In addition, strip holes 36 are respectively provided on the buckle body 3 on both sides of the limiting boss Ⅰ31, so that the limiting boss Ⅰ31 has a certain elasticity. When the buckle body 3 is inserted into the buckle hole 21, the limiting boss Ⅰ31 and the limiting boss Ⅱ22 are squeezed and deformed, which can not only absorb the tolerance of the limiting boss Ⅰ31 in the height direction and improve the firmness of the installation, but also allow the limiting boss Ⅰ31 to move and slide out along the inclined surface Ⅱ23 of the limiting boss Ⅱ22 during disassembly.

[0036] The installation method of the airbag cover and the instrument panel 2 is as follows: after aligning the circumferential snap body 3 of the cover body 1 with the snap hole 21 on the instrument panel 2, the snap body 3 is snapped into the corresponding snap hole 21, so that the inclined surface Ⅰ32 of the limiting boss Ⅰ31 on the snap body 3 is snap-fitted with the inclined surface Ⅱ23 of the limiting boss Ⅱ22 on one side of the snap hole 21, and at the same time, multiple limiting ribs Ⅰ34 are in contact with one side of the snap hole 21, thereby achieving a firm connection between the airbag cover and the instrument panel 2.

[0037] The method for disassembling the airbag cover and the instrument panel 2 is as follows: use a large force to act on the limiting boss Ⅰ31 to make the limiting boss Ⅰ31 on the buckle body 3 slide out from the limiting boss Ⅱ22 on one side of the buckle hole 21, and then pull the cover body 1 upward to separate the buckle body 3 from the buckle hole 21.

[0038] In summary, the utility model has a simple structure and high structural strength, can achieve a good fit between the airbag cover and the instrument panel, is convenient for multiple disassembly and installation, and is not easy to loosen after installation.

[0039] The above description is only used to illustrate some principles of the utility model. This specification is not intended to limit the utility model to the specific structure and application scope shown and described. Therefore, all corresponding modifications and equivalents that may be used belong to the patent scope applied for the utility model.

Claims

1. A connection structure between an airbag cover and an instrument panel, characterized in that: A buckle structure is provided between the cover plate body and the instrument panel, wherein the buckle structure comprises buckle bodies arranged at intervals along the circumference of the cover plate body and a plurality of buckle holes provided on the instrument panel, wherein the buckle bodies are connected to the corresponding buckle holes by a bevel matching structure; The inclined surface matching structure includes a limiting boss I arranged on the buckle body and a limiting boss II arranged on one side of the buckle hole, and the limiting boss I and the limiting boss II are engaged by inclined surface extrusion; the limiting boss I is set as a boss with a triangular cross-sectional shape, and a downwardly inclined inclined surface I is set on a side of the limiting boss I close to the cover body.

2. The airbag cover and instrument panel connection structure according to claim 1, characterized in that: The dashboard is provided with an avoidance hole for accommodating an airbag, and the avoidance hole is circumferentially provided with a mounting groove that matches the cover plate body, and the cross-section of the mounting groove is arranged in a step shape, and the side of the mounting groove close to the avoidance hole is higher than the other side, and the snap holes are arranged at intervals along the circumference of the mounting groove.

3. The airbag cover and instrument panel connection structure according to claim 2, characterized in that: The buckle hole is set as a rectangular hole, and the limiting boss II is set on the bottom of the buckle hole near the side of the avoidance hole. The limiting boss II is provided with an inclined surface II that is snap-fitted with the limiting boss I.

4. The airbag cover and instrument panel connection structure according to claim 3, characterized in that: The inclined surface II is provided with a clamping groove along its inclined direction, and the limiting boss I is provided with a clamping boss that is clamped and matched with the clamping groove.

5. The airbag cover and instrument panel connection structure according to claim 1, characterized in that: A plurality of limiting ribs I are arranged on one side of the buckle body away from the limiting boss I, and the plurality of limiting ribs I are in abutment with one side of the buckle hole.

6. The airbag cover and instrument panel connection structure according to claim 5, characterized in that: The limiting rib I includes a horizontal section that is connected to the upper surface of the instrument panel and a vertical section that is connected to the inner wall of the buckle hole.

7. The airbag cover and instrument panel connection structure according to claim 1, characterized in that: Limiting ribs II are respectively arranged on two side surfaces of the buckle body which are perpendicular to a surface on which the limiting boss I is arranged, and the two limiting ribs II are gap-matched with the buckle holes.

8. The airbag cover and instrument panel connection structure according to claim 1, characterized in that: Strip holes are respectively arranged on the buckle bodies on both sides of the limiting boss I.

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