Automobile safety air bag with anti-falling cover

Abstract

The utility model relates to the technical field of automobile safety air bags, and provides an automobile safety air bag with an anti-falling cover, a box body and an air bag decorative cover wall body are inserted into a clamping groove through a clamping hook to be clamped, and the anti-falling cover similar to the box body in shape is arranged on the lower portion of the box body. The anti-falling cover and the box body are fixedly installed through nuts and bolts through the installation holes in the first installation block and the second installation block, in this way, an existing part structure is not changed, only the anti-falling cover is additionally arranged, the box body and the air bag decorative cover wall body can be wrapped and clamped, the problem of box body deformation in the air bag explosion process is solved, meanwhile, the lap joint amount of clamping hooks is increased, and the air bag explosion prevention effect is achieved. The function of preventing the air bag decorative cover from unhooking on the wall body is achieved. The box body and the periphery of the air bag decorative cover wall body are fixedly sleeved firmly through the anti-falling cover, and the box body can be fully held tightly in the air bag explosion process to avoid deformation and outward expansion.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive airbags, in particular to an automotive airbag with an anti - detachment cover. Background Art

[0002] The airbag system is an auxiliary protection system for automobiles. Its working principle is that when the sensor detects relevant collision signals, the control unit determines whether to detonate the airbag. After receiving the detonation signal, the gas generator generates a large amount of gas in a short time to inflate the airbag, and the airbag forms a buffer pad to protect passengers from being injured by a secondary collision.

[0003] The driver's airbag is an indispensable part of the airbag system. Its components are mostly metal or injection - molded boxes, decorative covers, gas generators, airbags, springs, etc. The matching and strength reliability between the box and the decorative cover play a crucial role in the product performance.

[0004] Currently, the connection between the decorative cover and the metal box is in a snap - fit form. Due to reasons such as insecure snap - fit and small overlap amount, there is a risk of unhooking during the airbag detonation process. Summary of the Utility Model

[0005] In view of this, the purpose of the present utility model is to provide an automotive airbag with an anti - detachment cover, which solves the problem that due to reasons such as insecure snap - fit and small overlap amount between the decorative cover and the metal box, there is a risk of unhooking during the airbag detonation process.

[0006] Based on the above purpose, the present utility model provides an automotive airbag with an anti - detachment cover, which includes a box containing the airbag. The box is inserted and overlapped with an airbag decorative cover wall from top to bottom. An anti - detachment cover similar in shape to the box is arranged outside the lower part of the box, and the anti - detachment cover is made of galvanized sheet. The anti - detachment cover is in the shape of a polygonal annular wall. One inner side of one side of the anti - detachment cover is provided with a first mounting block for mounting with the box, and two inner sides of two sides of the anti - detachment cover are provided with second mounting blocks for mounting with the box. The first mounting block and the two second mounting blocks are arranged in a triangle. Two mounting holes are provided on the first mounting block, and one mounting hole is provided on the second mounting block. Waist - shaped protrusions for avoiding the raised ribs at the bottom of the box are arranged at the bottoms of the first mounting block and the second mounting block. An avoidance hole for the overlap of the airbag decorative cover wall is arranged on one side of the second mounting block close to the anti - detachment cover.

[0007] Preferably, the airbag decorative cover wall is inserted into the box from top to bottom for snap - fit.

[0008] Preferably, snap - fit hooks are arranged around the airbag decorative cover wall, and snap - fit grooves are arranged around the bottom of the box. The snap - fit hooks are inserted into the snap - fit grooves from top to bottom for snap - fit, and the snap - fit hooks are adapted to the avoidance holes.

[0009] Preferably, the mounting holes of the first mounting block and the second mounting block are mounted on the bottom of the box body by nuts and bolts.

[0010] Preferably, the mounting holes of the first mounting block and the second mounting block are used to mount the gas generator by nuts and bolts, and then mounted on the box body.

[0011] Preferably, an arc-shaped notch for avoiding the gas generator is arranged on one side of the first mounting block away from the anti-detachment cover.

[0012] Preferably, a cover body is arranged on the top of the airbag cover wall body.

[0013] The beneficial effects of the present utility model are as follows: The box body of the present utility model and the airbag cover wall body are clamped by inserting the clamping hook into the clamping groove. The lower part of the box body is provided with an anti-detachment cover similar in shape to it. The anti-detachment cover is fixedly installed on the box body by nuts and bolts through the mounting holes on the first mounting block and the second mounting block. In this way, without changing the structural shape of the existing parts, only adding the anti-detachment cover can wrap and tightly clamp the box body and the airbag cover wall body, reduce the deformation problem of the box body during the airbag explosion process, and at the same time increase the overlapping amount of the clamping hook, realizing the function of preventing the airbag cover wall body from detaching from the hook. The anti-detachment cover fixedly sleeves the box body and the airbag cover wall body around, and can fully "hold" the box body during the airbag explosion process to avoid deformation and outward expansion. The anti-detachment cover is formed by integral stretching and stamping, with good consistency, low process cost, and easy to achieve mass production. The overall material is galvanized steel plate, whose strength can maintain the box body not to deform easily during the explosion process. The galvanized surface treatment has strong corrosion resistance and good environmental protection effect. The assembly method of the anti-detachment cover with the box body, the gas generator and the airbag cover wall body is simple. After the airbag cover wall body is pressed in place, the anti-detachment cover is aligned with the hole position, sleeved and tightly clamped, and then the gas generator is installed and the nut is tightened. The structure is firm, the installation is reliable, and there will be no noise problems such as abnormal noise.

[0014] At the bottom of the first mounting block and the second mounting block of the present utility model, there are waist-shaped protrusions for avoiding the protruding ribs at the bottom of the box body, so that the adaptability between the protective cover and the box body is high and the assembly is more stable. The second mounting block of the present utility model is provided with an avoidance hole to avoid the clamping hook of the airbag cover wall body, so that the protective cover can better match the installation of the airbag cover wall body. The mounting hole of the present utility model first installs the gas generator with bolts and nuts and then installs it on the box body, so as to adapt to the assembly of the box body and the gas generator, and the integration degree is high. The first mounting block of the present utility model is provided with an arc-shaped notch to avoid the gas generator, further ensuring the adaptability. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is the overall schematic diagram of the present utility model;

[0017] Figure 2 is Figure 1 the schematic diagram of the separation of the box body and the anti-detachment cover;

[0018] Figure 3 is the schematic diagram of the anti-detachment cover of the present utility model.

[0019] The labels in the figure are:

[0020] 1 - box body, 2 - airbag trim wall body, 3 - anti-detachment cover, 4 - first mounting block, 5 - second mounting block, 6 - mounting hole, 7 - waist-shaped protrusion, 8 - avoidance hole, 9 - clamping hook, 10 - clamping groove, 11 - avoidance gas generator, 12 - arc-shaped notch, 13 - trim cover body. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the present utility model more clearly understood, the following further details the present utility model in combination with specific embodiments.

[0022] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meaning understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not represent any order, quantity or importance, but are only used to distinguish different components. The terms such as "include" or "comprise" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connect" or "be connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] Such as Figures 1 to 3As shown in the figure, this embodiment provides an automotive airbag with an anti - detachment cover, which includes a box body 1 containing an airbag. The box body 1 is inserted and lapped with an airbag trim wall body 2 from top to bottom. A trim cover body 13 is arranged at the top of the airbag trim wall body 2. The airbag trim wall body 2 is inserted into the box body 1 from top to bottom for clamping connection. Clamping hooks 9 are arranged around the airbag trim wall body 2, and clamping grooves 10 are arranged around the bottom of the box body 1. The clamping hooks 9 are inserted into the clamping grooves 10 from top to bottom for clamping connection. An anti - detachment cover 3 similar in shape to the box body 1 is arranged outside the lower part of the box body 1. The anti - detachment cover 3 is in the shape of a polygonal annular wall body. On the inner side of one side of the anti - detachment cover 3, there is a first mounting block 4 for mounting with the box body 1. On the inner side of two sides of the anti - detachment cover 3, there are second mounting blocks 5 for mounting with the box body 1. The first mounting block 4 and the two second mounting blocks 5 are arranged in a triangular pattern. Two mounting holes 6 are arranged on the first mounting block 4, and one mounting hole 6 is arranged on the second mounting block 5. The box body 1 and the airbag trim wall body 2 are clamped by inserting the clamping hooks 9 into the clamping grooves 10. And an anti - detachment cover 3 similar in shape to the lower part of the box body 1 is arranged. The anti - detachment cover 3 is fixedly installed with the box body 1 through the mounting holes 6 on the first mounting block 4 and the second mounting blocks 5 using nuts and bolts. In this way, without changing the structural shape of the existing parts, only adding an anti - detachment cover can tightly wrap and clamp the box body 1 and the airbag trim wall body 2, reducing the deformation problem of the box body 1 during the airbag explosion process. At the same time, increasing the overlapping amount of the clamping hooks 9 realizes the function of preventing the airbag trim from detaching. The anti - detachment cover 3 fixedly sleeves the box body 1 and the airbag trim wall body around the circumference. During the airbag explosion process, it can fully "hug" the box body to prevent deformation and outward expansion.

[0024] The anti - detachment cover 3 is made of galvanized sheet. The anti - detachment cover 3 is formed by integral stretching and stamping, with good consistency, low process cost, and easy to achieve mass production. The overall material is galvanized steel plate, whose strength can maintain the box body from being easily deformed during the explosion process. The galvanized surface treatment has strong corrosion resistance and good environmental protection effect. The assembly method of the anti - detachment cover 3 with the box body 1, the gas generator 11, and the airbag trim wall body 2 is simple. After the airbag trim wall body 2 is pressed in place, the anti - detachment cover 1 is aligned with the hole positions, sleeved, and clamped tightly, and then the gas generator 11 is installed and locked with nuts. The structure is firm and the installation is reliable, and there will be no noise problems such as abnormal noises.

[0025] Waist - shaped protrusions 7 for avoiding the convex ribs at the bottom of the box body 1 are arranged at the bottoms of the first mounting block 4 and the second mounting blocks 5. In this way, the adaptability of the protective cover to the box body is high, and the assembly is more stable. An avoidance hole 8 for the lap joint of the airbag trim wall body 2 is arranged on the side of the second mounting block 5 close to the anti - detachment cover 3. The clamping hook 9 is adapted to the avoidance hole 8, which makes the protective cover better match the installation of the airbag trim wall body.

[0026] The mounting holes 6 of the first mounting block 4 and the second mounting block 5 are mounted to the bottom of the box body 1 through nuts and bolts; the mounting holes 6 of the first mounting block 4 and the second mounting block 5 are used to mount the gas generator 11 through nuts and bolts and then mounted to the box body; an arc-shaped notch 12 for avoiding the gas generator 11 is arranged on one side of the first mounting block 4 away from the anti-disengagement cover 3. The mounting holes are first used to mount the gas generator 11 to the box body 1 through bolts and nuts, so as to adapt to the assembly of the box body 1 and the gas generator 11, with a high degree of integration. The arc-shaped notch 12 is arranged on the first mounting block 4 to avoid the gas generator 11, further ensuring the adaptability.

[0027] Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automotive airbag with an anti-detachment cover, comprising a box body (1) containing the airbag, characterized in that, The box body (1) is inserted and lapped with an airbag trim cover wall body (2) from top to bottom. An anti-detachment cover (3) similar in shape to the box body (1) is arranged outside the lower part of the box body (1), and the anti-detachment cover (3) is made of galvanized sheet. The anti-detachment cover (3) is in the shape of a polygonal annular wall body. On the inner side of one side of the anti-detachment cover (3), there is a first mounting block (4) for mounting with the box body (1). On the inner sides of two sides of the anti-detachment cover (3), there are second mounting blocks (5) for mounting with the box body (1). The first mounting block (4) and the two second mounting blocks (5) are arranged in a triangular pattern. There are two mounting holes (6) on the first mounting block (4), and there is one mounting hole (6) on the second mounting block (5). Waist-shaped protrusions (7) for avoiding the bottom convex ribs of the box body (1) are arranged at the bottoms of the first mounting block (4) and the second mounting block (5). A relief hole (8) for lapping the airbag trim cover wall body (2) is arranged on one side of the second mounting block (5) close to the anti-detachment cover (3).

2. The automotive airbag with an anti-detachment cover according to claim 1, characterized in that, The airbag trim cover wall body (2) is inserted into the box body (1) from top to bottom for clamping connection.

3. The automotive airbag with an anti - detachment cover according to claim 2, wherein, Clamping hooks (9) are arranged around the airbag trim cover wall body (2), and clamping grooves (10) are arranged around the bottom of the box body (1). The clamping hooks (9) are inserted into the clamping grooves (10) from top to bottom for clamping connection, and the clamping hooks (9) are adapted to the relief holes (8).

4. The automotive airbag with an anti - detachment cover according to claim 1, wherein, The mounting holes (6) of the first mounting block (4) and the second mounting block (5) are mounted with the bottom of the box body (1) through nuts and bolts.

5. The automotive airbag with an anti - detachment cover according to claim 4, wherein, The mounting holes (6) of the first mounting block (4) and the second mounting block (5) are used to mount a gas generator (11) through nuts and bolts, and then mounted with the box body (1).

6. The automotive airbag with an anti-detachment cover according to claim 5, characterized in that, An arc-shaped notch (12) for avoiding the gas generator (11) is arranged on one side of the first mounting block (4) far from the anti-detachment cover (3).

7. The automotive airbag with an anti-detachment cover according to claim 1, wherein A trim cover body (13) is arranged at the top of the airbag trim cover wall body (2).

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