Safety belt anchor point pretensioner mounting bracket and automobile

Abstract

The utility model relates to a safety belt lower anchor point pretensioner installation support and an automobile, the safety belt lower anchor point pretensioner installation support comprises a support body, the support body comprises a vertical face, and a front side face, a rear side face and a lower lap joint face which are respectively arranged on the periphery of the vertical face; a pretensioner mounting hole is formed in the vertical surface; a front lower welding flange is arranged at the lower end of the front side surface; a rear lower welding flange is arranged at the lower end of the rear side surface; the side edges, away from the support body, of the front side face and the rear side face are each provided with an arc turned-over edge. According to the utility model, the number of parts is reduced, the wire harness can be prevented from being directly contacted with sharp edges of the parts during collision, the wire harness is effectively prevented from being cut off, and the safety and reliability of an automobile are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile safety belt installation, in particular to a safety belt lower anchor point pretensioner installation bracket and an automobile. Background Art

[0002] As the market demand for motor vehicles increases, the safety configuration of the seat belt lower anchor point pretensioner is gradually becoming popular on various models. At present, the seat belt lower anchor point pretensioner mounting bracket generally requires two brackets, such as the seat belt mounting bracket assembly disclosed in patent document CN218021536U, which includes a base, a connecting bracket and a bridging bracket; the connecting bracket includes a lap portion and a first connecting portion connected by a bending connection, and the lap portion is fixed to the base; the bridging bracket is connected to the side of the first connecting portion and is used to fix the seat belt. Although this seat belt mounting bracket assembly can increase the versatility of the seat belt mounting bracket assembly, it has the problem of too many parts.

[0003] In addition, most of the existing seat belt lower anchor point pretensioner mounting brackets have right-angled sharp edges. When the vehicle is hit sideways, the wiring harness between the lower part of the side B-pillar and the front floor is sheared by the seat belt lower anchor point pretensioner mounting bracket, resulting in abnormal situations such as the floor wiring harness being cut, the door not being unlocked, and the entire vehicle losing power, threatening the lives of the occupants.

[0004] Therefore, it is necessary to develop a new safety belt lower anchor point pretensioner mounting bracket and automobile. Summary of the invention

[0005] The utility model aims to provide a safety belt lower anchor point pretensioner mounting bracket and a car, which can reduce the number of parts and ensure that the wiring harness is not cut off when the car is hit sideways.

[0006] In a first aspect, a safety belt lower anchor point pretensioner mounting bracket according to the utility model comprises a bracket body, wherein the bracket body comprises a vertical surface, and a front side surface, a rear side surface and a lower overlap surface respectively arranged on the outer periphery of the vertical surface;

[0007] The vertical surface is provided with a pretensioner mounting hole;

[0008] A front lower welding flange is provided at the lower end of the front side surface;

[0009] A rear lower welding flange is provided at the lower end of the rear side surface;

[0010] The front side surface and the rear side surface are both provided with arc flanges on one side away from the bracket body.

[0011] Optionally, the bracket body further includes an upper reinforcement surface connected to the vertical surface; the strength of the mounting bracket can be improved by the upper reinforcement surface.

[0012] Optionally, a circular arc transition is used at the connection between the front side surface and the vertical surface; a circular arc transition is used at the connection between the rear side surface and the vertical surface; the use of circular arc transition can eliminate stress concentration and improve the toughness of the mounting bracket.

[0013] Optionally, a notch is provided at the lower end of the connection between the facade and the front side surface; that is, by cutting off the corner of the part, it is possible to avoid cracking of the mounting bracket.

[0014] Optionally, a notch is provided at the lower end of the connection between the facade and the rear side surface; that is, by cutting off the corner of the part, the molding cracking of the mounting bracket can be avoided.

[0015] Optionally, the connection between the front side surface and the front lower welding flange is achieved through an arc transition; the use of an arc transition at the connection can eliminate stress concentration and improve the toughness of the mounting bracket.

[0016] Optionally, the connection between the rear side surface and the rear lower welding flange is achieved through an arc transition; the use of an arc transition at the connection can eliminate stress concentration and improve the toughness of the mounting bracket.

[0017] Optionally, the connection between the lower overlapping surface and the vertical surface is made through an arc transition; the use of an arc transition at the connection can eliminate stress concentration and improve the toughness of the mounting bracket.

[0018] Optionally, the seat belt lower anchor point pretensioner mounting bracket is made of high-strength steel to ensure the strength of the mounting point.

[0019] In a second aspect, a vehicle described in the utility model adopts the safety belt lower anchor point pretensioner mounting bracket described in the utility model.

[0020] Beneficial effects of the utility model:

[0021] (1) The utility model only requires one part, which reduces the number of parts.

[0022] (2) The utility model optimizes the right-angled sharp edge of the seat belt lower anchor point pretensioner mounting bracket into an arc flange, thereby increasing the contact area between the wiring harness and the seat belt lower anchor point pretensioner mounting bracket, avoiding direct contact between the wiring harness and the sharp edge of the parts during a collision, effectively preventing the wiring harness from being cut, and thus improving the safety and reliability of the vehicle.

[0023] (3) The utility model can avoid the molding cracking of the seat belt lower anchor point pretensioner mounting bracket by cutting off the corner of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the structural schematic diagrams of the seat belt lower anchor point pretensioner mounting bracket in the embodiment of the present application;

[0025] Figure 2This is a second structural schematic diagram of a safety belt lower anchor point pretensioner mounting bracket in an embodiment of the present application;

[0026] Figure 3 This is a structural schematic diagram of a seat belt lower anchor point pretensioner mounting bracket welded on a car in an embodiment of the present application;

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Vertical surface, 2. Lower overlapping surface, 3. Arc, 4. Notch, 5. Front lower welding flange, 6. Arc flange, 7. Front side, 8. Upper reinforcement surface, 9. Bolt bushing, 10. Rear side, 11. Rear lower welding flange hole, 12. Pretensioner mounting hole, 13. Seat belt lower anchor point pretensioner mounting bracket, 14. Seat crossbeam, 15. Front floor panel, 16. Door sill welding assembly. DETAILED DESCRIPTION

[0028] The following will refer to the accompanying drawings and preferred embodiments to illustrate the implementation of the technical solution of the utility model. Those skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the utility model. It should be understood that the preferred embodiments are only for illustrating the utility model, not for limiting the scope of protection of the utility model.

[0029] like Figure 1 and Figure 2 As shown, in the embodiment of the present application, a seat belt lower anchor point pretensioner mounting bracket includes a bracket body, the bracket body includes a facade 1, and a front side surface 7, a rear side surface 10 and a lower overlapping surface 2 respectively arranged on the outer periphery of the facade 1; a pretensioner mounting hole 12 is provided on the facade 1; the lower end of the front side surface 7 is provided with a front lower welding flange 5 extending horizontally forward; the lower end of the rear side surface 10 is provided with a rear lower welding flange 11 extending horizontally backward; the front side surface 7 and the rear side surface 10 are both provided with an arc flange 6 on one side away from the bracket body.

[0030] like Figure 1 As shown, in the embodiment of the present application, the seat belt lower anchor point pretensioner mounting bracket 13 only needs one part, and the seat belt lower anchor point pretensioner is installed on the seat belt lower anchor point pretensioner mounting bracket 13 through the pretensioner mounting hole 12 with bolts and nuts. The seat belt lower anchor point pretensioner mounting bracket 13 can not only ensure the reliable connection of the seat belt lower anchor point pretensioner, but also reduce the number of parts. At the same time, the right-angle sharp edge of the seat belt lower anchor point pretensioner mounting bracket 13 is optimized to a circular arc flange 6, and the circular arc flange 6 is used to increase the contact area between the wire harness and the seat belt lower anchor point pretensioner mounting bracket 13, avoiding the direct contact between the wire harness and the sharp edge of the part during a collision, and effectively preventing the wire harness from being cut off.

[0031] like Figure 1 As shown, in a possible embodiment, the connection between the front side surface 7 and the facade 1 adopts an arc 3 transition; the connection between the rear side surface 10 and the facade 1 adopts an arc 3 transition; the use of arc 3 transition can eliminate stress concentration and improve the toughness of the seat belt lower anchor point pretensioner mounting bracket 13.

[0032] like Figure 1 As shown, in a possible embodiment, the bracket body further includes an upper reinforcement surface 8 connected to the vertical surface 1. The two ends of the upper reinforcement surface 8 are respectively connected to the upper ends of the front side surface 7 and the rear side surface 10 as a whole, and the seat belt lower anchor point pretensioner mounting bracket 13 improves its overall strength by providing the upper reinforcement surface 8.

[0033] like Figure 1 As shown, in a possible embodiment, the material of the seat belt lower anchor point pretensioner mounting bracket 13 is high-strength steel, and the molding method is cold stamping. A notch 4 is provided at the lower end of the connection between the facade 1 and the front side 7, and a notch 4 is provided at the lower end of the connection between the facade 1 and the rear side 10. That is, by cutting off the corners of the parts, the seat belt lower anchor point pretensioner mounting bracket 13 can be prevented from being molded and cracked.

[0034] like Figure 1 As shown, in a possible embodiment, the connection between the front side surface 7 and the front lower welding flange 5 is transitioned through an arc 3. The arc 3 transition can eliminate stress concentration and improve the toughness of the seat belt lower anchor point pretensioner mounting bracket 13.

[0035] like Figure 1 As shown, in a possible embodiment, the connection between the rear side surface 10 and the rear lower welding flange 11 is transitioned through an arc 3. The arc 3 transition can eliminate stress concentration and improve the toughness of the seat belt lower anchor point pretensioner mounting bracket 13.

[0036] like Figure 1 As shown, in a possible embodiment, the connection between the lower overlap surface 2 and the vertical surface 1 is transitioned through an arc 3. The transition of the arc 3 can eliminate stress concentration and improve the toughness of the seat belt lower anchor point pretensioner mounting bracket 13.

[0037] like Figure 1 As shown, in a possible embodiment, a bolt bushing 9 is provided at the pretensioner mounting hole 12 to facilitate fixing the seat belt lower anchor point pretensioner to the seat belt lower anchor point pretensioner mounting bracket 13 by bolts and nuts.

[0038] like Figure 3As shown, in the embodiment of the present application, a car adopts the seat belt lower anchor point pretensioner mounting bracket 13 as described in the embodiment of the present application. The seat belt lower anchor point pretensioner mounting bracket 13 is welded to the seat crossbeam 14, the front floor panel 15 and the door sill welding assembly 16 through the lower overlap surface 2, the rear lower welding flange 11 and the front lower welding flange 5. It not only has the advantages of fewer parts and simple installation, but also can prevent the wire harness from directly contacting the sharp edge of the parts during a collision, effectively preventing the wire harness from being cut off.

[0039] The above-mentioned embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above-mentioned embodiments. Any other changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. A seat belt lower anchor point pretensioner mounting bracket, characterized in that: The bracket body comprises a vertical surface (1), and a front side surface (7), a rear side surface (10) and a lower overlapping surface (2) respectively arranged on the outer periphery of the vertical surface (1); The vertical surface (1) is provided with a pretensioner mounting hole (12); A front lower welding flange (5) is provided at the lower end of the front side surface (7); A rear lower welding flange (11) is provided at the lower end of the rear side surface (10); The front side surface (7) and the rear side surface (10) are both provided with arc flanges (6) on one side away from the bracket body.

2. The seat belt lower anchor point pretensioner mounting bracket according to claim 1, characterized in that: The support body also includes an upper reinforcement surface (8) connected to the vertical surface (1).

3. The seat belt lower anchor point pretensioner mounting bracket according to claim 1, characterized in that: The connection between the front side surface (7) and the facade (1) adopts a circular arc (3) transition; the connection between the rear side surface (10) and the facade (1) adopts a circular arc (3) transition.

4. The seat belt lower anchor point pretensioner mounting bracket according to claim 1, characterized in that: A notch (4) is provided at the lower end of the connection between the facade (1) and the front side surface (7).

5. The seat belt lower anchor point pretensioner mounting bracket according to claim 1, characterized in that: A notch (4) is provided at the lower end of the connection between the facade (1) and the rear side surface (10).

6. The seat belt lower anchor point pretensioner mounting bracket according to claim 1, characterized in that: The connection between the front side surface (7) and the front lower welding flange (5) is transitioned through an arc (3).

7. The seat belt lower anchor point pretensioner mounting bracket according to claim 1, characterized in that: The connection between the rear side surface (10) and the rear lower welding flange (11) is transitioned through an arc (3).

8. The seat belt lower anchor point pretensioner mounting bracket according to claim 1, characterized in that: The connection between the lower overlapping surface (2) and the vertical surface (1) is transitioned through an arc (3).

9. The seat belt lower anchor point pretensioner mounting bracket according to claim 1, characterized in that: The seat belt lower anchor point pretensioner mounting bracket is made of high-strength steel.

10. An automobile, characterized in that: A safety belt lower anchor point pretensioner mounting bracket as described in any one of claims 1 to 9 is used.

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