A reinforcing structure for a hot air expansion tube and a body panel of an automobile

Abstract

The utility model relates to a kind of reinforcing member structure for automobile body sheet metal and hot gas expansion pipe, belong to automobile body technical field, including first reinforcing member (1) and second reinforcing member (2), the second reinforcing member (2) is set on first reinforcing member (1), the first reinforcing member (1) is provided with first expansion adhesive layer (3), the second reinforcing member (2) is provided with second expansion adhesive layer (4). First expansion adhesive layer (3) and second expansion adhesive layer (4) are covered respectively in the outer surface of first reinforcing member (1) and second reinforcing member (2), the connectivity between automobile body sheet metal structure and hot gas expansion pipe is increased, first reinforcing member (1) and second reinforcing member (2) are pre-installed on the outer wall of hot gas expansion pipe, it can fill the gap between automobile body reinforcing structure and A column or B column ontology to some extent, improve structural strength and resistance to carrying capacity, realize automobile body strength enhancement.

Description

Technical Field

[0001] This utility model belongs to the field of automotive body technology. Specifically, this utility model relates to a reinforcing structure for automotive body sheet metal and hot air expansion tubes. Background Technology

[0002] With technological advancements, the production technology of hot gas expansion tubes has gradually matured, and the material strength of hot gas expansion tubes has also increased. However, when hot gas expansion tubes are used in the automotive industry, the gap between them and the car body sheet metal prevents the overall performance of the car body structure at this location from being effectively coordinated.

[0003] Although hot air expansion tubes are currently mainly used in the sheet metal structure of A-pillars, B-pillars, and between A-pillars and B-pillars, due to manufacturing issues, there is a large gap between the existing car body sheet metal and the hot air expansion tubes. This area has relatively weak overall strength and low load-bearing capacity when under stress, and cannot meet the increasingly stringent automotive regulations for car body strength.

[0004] A search revealed that Chinese patent CN220147433U, published on December 8, 2023, discloses an A-pillar reinforcement assembly, including an A-pillar reinforcement, an upper A-pillar hinge reinforcement plate, an upper A-pillar hinge mounting reinforcement, a lower A-pillar hinge mounting reinforcement, and an A-pillar reinforcement tube. The A-pillar reinforcement is equipped with the upper A-pillar hinge reinforcement plate, the lower A-pillar hinge mounting reinforcement, and the A-pillar reinforcement tube. The upper A-pillar hinge mounting reinforcement is mounted on the upper A-pillar hinge reinforcement plate. The A-pillar reinforcement tube is a closed-loop hot-expansion tube. While the A-pillar reinforcement tube itself has certain bending and torsional resistance, the lack of a hot-expansion tube reinforcement fails to improve its strength and load-bearing capacity. Utility Model Content

[0005] The present invention aims to provide a reinforcing structure for automotive sheet metal and hot air expansion tubes that improves strength and load-bearing capacity.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A reinforcing structure for automotive body sheet metal and hot air expansion tubes includes a first reinforcing member and a second reinforcing member, the second reinforcing member being disposed on the first reinforcing member, the first reinforcing member being provided with a first expansion adhesive layer, and the second reinforcing member being provided with a second expansion adhesive layer.

[0008] The first reinforcing member is provided with a first protrusion and a second protrusion, and the first expanding adhesive layer is disposed between the first protrusion and the second protrusion; the first reinforcing member is also provided with a first reinforcing rib, which is disposed on one side of the second protrusion, and a reinforcing plate is provided on the top of the first reinforcing rib.

[0009] The second reinforcing member is provided with a first protrusion and a second protrusion, and the second expanding adhesive layer is disposed between the first protrusion and the second protrusion; the second reinforcing member is also provided with a second reinforcing rib, which is disposed on one side of the second protrusion.

[0010] The first and second reinforcing ribs are an integral structure.

[0011] The first reinforcing member has a first positioning block at one end and a second positioning block at the other end; the second reinforcing member has a third positioning block at one end and a fourth positioning block at the other end.

[0012] The first positioning block has a first through hole that mates with the positioning pin; the second positioning block has a second through hole that mates with the positioning pin; the third positioning block has a third through hole that mates with the positioning pin; and the fourth positioning block has a fourth through hole that mates with the positioning pin.

[0013] Multiple sets of the first bump and the second bump are provided; multiple sets of the first protrusion and the second protrusion are provided.

[0014] The first reinforcing member has an arc-shaped cross-section, and the second reinforcing member has an L-shaped cross-section.

[0015] Both the first protrusion and the second protrusion are arc-shaped, and both the first protrusion and the second protrusion are L-shaped.

[0016] The first reinforcing rib is triangular, the reinforcing plate is square, and the second reinforcing rib is L-shaped. Multiple sets of the first reinforcing rib, multiple sets of the reinforcing plate, and multiple sets of the second reinforcing rib are provided.

[0017] The technical effects of this utility model are as follows: The first reinforcing member 1 and the second reinforcing member 2 are both high molecular composite materials of polyamide and epoxy resin. The first expanding adhesive layer 3 and the second expanding adhesive layer 4 are respectively covered on the outer surface of the first reinforcing member 1 and the second reinforcing member 2, which increases the connection between the car body sheet metal structure and the hot air expansion tube, improves the overall structural strength and load-bearing capacity, and realizes the enhancement of the car body strength. The overall structure is set in the inner cavity of the A-pillar or B-pillar body. The first reinforcing member 1 and the second reinforcing member 2 are pre-installed on the outer wall of the hot air expansion tube. The first expanding adhesive layer 3 and the second expanding adhesive layer 4 are both epoxy expanding adhesives, which can fill the gap between the car body reinforcement structure and the A-pillar or B-pillar body to a certain extent, improve the overall sealing and structural integrity. The adhesive effect of the epoxy expanding adhesive further ensures the integrity and stability of the structure. Attached Figure Description

[0018] This manual includes the following figures, which illustrate the following:

[0019] Figure 1This is a reinforcing structure for automotive body sheet metal and hot air expansion tubes.

[0020] Figure 2 for Figure 1 Schematic diagram of the first reinforcing component.

[0021] Figure 3 for Figure 2 Rear view.

[0022] Figure 4 for Figure 1 Schematic diagram of the second reinforcing component.

[0023] Figure 5 for Figure 1 Rear view.

[0024] The markings in the diagram are as follows: 1. First reinforcing member; 2. Second reinforcing member; 3. First expanding adhesive layer; 4. Second expanding adhesive layer; 5. First protrusion; 6. Second protrusion; 7. First reinforcing rib; 8. Reinforcing plate; 9. First protrusion; 10. Second protrusion; 11. Second reinforcing rib; 12. First positioning block; 13. Second positioning block; 14. Third positioning block; 15. Fourth positioning block; 16. First through hole; 17. Second through hole; 18. Third through hole; 19. Fourth through hole. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0026] like Figure 1 As shown, a reinforcing structure for automotive body sheet metal and hot air expansion tubes includes a first reinforcing member 1 and a second reinforcing member 2. The second reinforcing member 2 is disposed on the first reinforcing member 1. The first reinforcing member 1 is provided with a first expanding adhesive layer 3, and the second reinforcing member 2 is provided with a second expanding adhesive layer 4. Both the first reinforcing member 1 and the second reinforcing member 2 are made of high-molecular composite materials such as polyamide and epoxy resin. The first expanding adhesive layer 3 and the second expanding adhesive layer 4 are respectively covered on the outer surfaces of the first reinforcing member 1 and the second reinforcing member 2, increasing the connection between the automotive body sheet metal structure and the hot air expansion tube, improving structural strength and load-bearing capacity, and achieving enhanced automotive body strength. The reinforcing structure is disposed in the inner cavity of the A-pillar or B-pillar body. The first reinforcing member 1 and the second reinforcing member 2 are pre-installed on the outer wall of the hot air expansion tube. The first expanding adhesive layer 3 and the second expanding adhesive layer 4 are both epoxy expanding adhesives, which can fill the gap between the automotive body reinforcement structure and the A-pillar or B-pillar body to a certain extent, improving the overall sealing and structural integrity. The adhesive effect of the epoxy expanding adhesive further ensures the integrity and stability of the structure.

[0027] like Figure 2 and Figure 3 As shown, the first reinforcing member 1 is provided with a first protrusion 5 and a second protrusion 6, and a first expanding adhesive layer 3 is disposed between the first protrusion 5 and the second protrusion 6; the first reinforcing member 1 is also provided with a first reinforcing rib 7, which is disposed on one side of the second protrusion 6, and a reinforcing plate 8 is provided on the top of the first reinforcing rib 7. The first reinforcing member 1 is provided with multiple sets of first protrusions 5 and second protrusions 6, and a first expanding adhesive layer 3 is disposed between the first protrusions 5 and the second protrusions 6. The first expanding adhesive layer 3 is used to bond and connect with the inner wall surface of the A-pillar or B-pillar body and the outer wall surface of the hot air expansion tube. After curing, the expanding adhesive has good adhesion and can firmly attach the car body reinforcement structure to the A-pillar or B-pillar body. The first reinforcing rib 7 is used to improve the rigidity of the first reinforcing member 1 and enhance the load-bearing capacity of the first reinforcing member 1.

[0028] like Figure 4 and Figure 5 As shown, the second reinforcing member 2 has a first protrusion 9 and a second protrusion 10, and a second expanding adhesive layer 4 is disposed between the first protrusion 9 and the second protrusion 10; the second reinforcing member 2 also has a second reinforcing rib 11, which is disposed on one side of the second protrusion 10. The second expanding adhesive layer 4 is disposed between the first protrusion 9 and the second protrusion 10. The second expanding adhesive layer 4 is used to bond and connect with the inner wall surface of the A-pillar or B-pillar body and the outer wall surface of the hot air expansion tube. After curing, the expanding adhesive has good adhesion, enabling it to firmly adhere the car body reinforcement structure to the A-pillar or B-pillar body. The second reinforcing rib 11 is used to improve the rigidity of the second reinforcing member 2 and enhance its load-bearing capacity.

[0029] The first reinforcing rib 7 and the second reinforcing rib 11 are integrally formed. Because they are machined as a single piece, the overall strength is greater.

[0030] The first reinforcing member 1 has a first positioning block 12 at one end and a second positioning block 13 at the other end; the second reinforcing member 2 has a third positioning block 14 at one end and a fourth positioning block 15 at the other end. The entire vehicle body reinforcement structure is connected by welding, snap-fitting, or bolting, and the four sets of positioning blocks are all used for assembling the vehicle body reinforcement structure.

[0031] The first positioning block 12 has a first through hole 16 that mates with the positioning pin; the second positioning block 13 has a second through hole 17 that mates with the positioning pin; the third positioning block 14 has a third through hole 18 that mates with the positioning pin; and the fourth positioning block 15 has a fourth through hole 19 that mates with the positioning pin. Each of the four sets of positioning blocks has a through hole that mates with the positioning pin, for convenient positioning during the assembly of the automotive body reinforcement structure.

[0032] Multiple sets of the first protrusion 5 and the second protrusion 6 are provided; multiple sets of the first protrusion 9 and the second protrusion 10 are also provided. The multiple sets of the first protrusion 5 and the second protrusion 6, as well as the first protrusion 9 and the second protrusion 10, can not only increase the rigidity of the entire vehicle body reinforcement structure, but also provide more positions to cover the expansion adhesive.

[0033] The first reinforcing member 1 has an arc-shaped cross-section, and the second reinforcing member 2 has an L-shaped cross-section. The arc-shaped first reinforcing member 1 and the L-shaped second reinforcing member 2 are used for assembly with the vehicle body.

[0034] Both the first protrusion 5 and the second protrusion 6 are arc-shaped, and both the first protrusion 9 and the second protrusion 10 are L-shaped. The shapes of the first protrusion 5 and the second protrusion 6 are similar to the shape of the first reinforcing member 1, and the shapes of the first protrusion 9 and the second protrusion 10 are similar to the shape of the second reinforcing member 2, which can improve strength and load-bearing capacity.

[0035] The first reinforcing rib 7 is triangular, the reinforcing plate 8 is square, and the second reinforcing rib 11 is L-shaped. Multiple sets of the first reinforcing rib 7, multiple sets of the reinforcing plate 8, and multiple sets of the second reinforcing rib 11 are set. The multiple sets of reinforcing plate 8, first reinforcing rib 7, and second reinforcing rib 11 can increase the strength of the entire structure.

[0036] The working principle of this utility model is as follows: A reinforcing structure for automotive body sheet metal and hot air expansion tubes includes a first reinforcing member 1 and a second reinforcing member 2. The second reinforcing member 2 is disposed on the first reinforcing member 1. The first reinforcing member 1 is provided with a first expanding adhesive layer 3, and the second reinforcing member 2 is provided with a second expanding adhesive layer 4. The first expanding adhesive layer 3 and the second expanding adhesive layer 4 are respectively covered on the outer surfaces of the first reinforcing member 1 and the second reinforcing member 2, increasing the connection between the automotive body sheet metal structure and the hot air expansion tube, improving structural strength and load-bearing capacity, and achieving enhanced automotive body strength. The reinforcing structure is disposed in the inner cavity of the A-pillar or B-pillar body. The first reinforcing member 1 and the second reinforcing member 2 are pre-installed on the outer wall of the hot air expansion tube. The first expanding adhesive layer 3 and the second expanding adhesive layer 4 are both epoxy expanding adhesives, which can fill the gap between the automotive body reinforcement structure and the A-pillar or B-pillar body to a certain extent, improving the overall sealing and structural integrity. The adhesive effect of the epoxy expanding adhesive further ensures the integrity and stability of the structure. The first reinforcing member 1 is further provided with a first reinforcing rib 7, and the second reinforcing member 2 is further provided with a second reinforcing rib 11. The first reinforcing rib 7 and the second reinforcing rib 11 provide the overall strength and load-bearing capacity of the structure. The first reinforcing rib 7 and the second reinforcing rib 11 are integrally formed, resulting in greater overall strength.

[0037] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A reinforcing structure for automotive body sheet metal and hot air expansion tubes, characterized in that: It includes a first reinforcing member (1) and a second reinforcing member (2), the second reinforcing member (2) being disposed on the first reinforcing member (1), the first reinforcing member (1) being provided with a first expanding adhesive layer (3), and the second reinforcing member (2) being provided with a second expanding adhesive layer (4).

2. The reinforcing structure for automotive body sheet metal and hot air expansion tubes according to claim 1, characterized in that: The first reinforcing member (1) is provided with a first protrusion (5) and a second protrusion (6), and the first expanding adhesive layer (3) is provided between the first protrusion (5) and the second protrusion (6); the first reinforcing member (1) is also provided with a first reinforcing rib (7), the first reinforcing rib (7) is provided on one side of the second protrusion (6), and the top of the first reinforcing rib (7) is provided with a reinforcing plate (8).

3. A reinforcing member structure for automotive body sheet metal and hot air expansion tubes according to claim 2, characterized in that: The second reinforcing member (2) is provided with a first protrusion (9) and a second protrusion (10), and the second expanding adhesive layer (4) is disposed between the first protrusion (9) and the second protrusion (10); the second reinforcing member (2) is also provided with a second reinforcing rib (11), and the second reinforcing rib (11) is disposed on one side of the second protrusion (10).

4. A reinforcing member structure for automotive body sheet metal and hot air expansion tubes according to claim 3, characterized in that: The first reinforcing rib (7) and the second reinforcing rib (11) are an integral structure.

5. A reinforcing structure for automotive body sheet metal and hot air expansion tubes according to claim 4, characterized in that: The first reinforcing member (1) has a first positioning block (12) at one end and a second positioning block (13) at the other end; the second reinforcing member (2) has a third positioning block (14) at one end and a fourth positioning block (15) at the other end.

6. A reinforcing structure for automotive body sheet metal and hot air expansion tubes according to claim 5, characterized in that: The first positioning block (12) is provided with a first through hole (16) that cooperates with the positioning pin, the second positioning block (13) is provided with a second through hole (17) that cooperates with the positioning pin, the third positioning block (14) is provided with a third through hole (18) that cooperates with the positioning pin, and the fourth positioning block (15) is provided with a fourth through hole (19) that cooperates with the positioning pin.

7. A reinforcing member structure for automotive body sheet metal and hot air expansion tubes according to any one of claims 3-6, characterized in that: The first protrusion (5) and the second protrusion (6) are both set in multiple groups; the first protrusion (9) and the second protrusion (10) are both set in multiple groups.

8. A reinforcing structure for automotive body sheet metal and hot air expansion tubes according to any one of claims 3-6, characterized in that: The first reinforcing member (1) has an arc-shaped cross section, and the second reinforcing member (2) has an L-shaped cross section.

9. A reinforcing structure for automotive body sheet metal and hot air expansion tubes according to claim 7, characterized in that: The first protrusion (5) and the second protrusion (6) are both arc-shaped, and the first protrusion (9) and the second protrusion (10) are both L-shaped.

10. A reinforcing member structure for automotive body sheet metal and hot air expansion tubes according to claim 8, characterized in that: The first reinforcing rib (7) is triangular, the reinforcing plate (8) is square, and the second reinforcing rib (11) is L-shaped. Multiple sets of the first reinforcing rib (7), multiple sets of the reinforcing plate (8), and multiple sets of the second reinforcing rib (11) are provided.

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