Automobile rear longitudinal beam structure

Abstract

The utility model provides an automobile rear longitudinal beam structure which comprises a rear longitudinal beam connecting section, a rear longitudinal beam front section, a connecting port, a connecting support, a rear longitudinal beam rear section, an automobile body connecting hole site, a connecting truss and an automobile body connecting structure, the rear longitudinal beam front section is fixedly installed at the front end of the rear longitudinal beam connecting section, and the connecting port is formed in the front end of the rear longitudinal beam front section. The connecting bracket is fixedly mounted in the connecting port; the rear longitudinal beam rear section is fixedly installed at the rear end of the rear longitudinal beam connecting section, and the vehicle body connecting hole site is arranged on the outer side of the rear longitudinal beam connecting section, the rear longitudinal beam front section and the vehicle body connecting hole site. The connecting truss is fixedly mounted on the inner sides of the two groups of rear longitudinal beam connecting sections, and the vehicle body connecting structure is fixedly mounted on the outer sides of the rear longitudinal beam connecting sections; due to the arrangement of the connecting support and the rear longitudinal beam rear section, the strength is high, connection is stable, and the connecting position cannot be loosened.

Description

TECHNICAL FIELD

[0001] The utility model relates to ear-nose-throat dosing technical field, especially a kind of automobile rear longitudinal beam structure. BACKGROUND

[0002] The automobile rear longitudinal beam is one of the important load-bearing structures of vehicle chassis, which plays a key role in supporting the vehicle body, transmitting external forces and protecting the vehicle body. The rear longitudinal beam structure needs to have high strength, high rigidity and good impact resistance to ensure that the vehicle can withstand various forces from the road and external collisions during driving. With the improvement of automobile safety standards, the design and manufacturing process of automobile rear longitudinal beam structure are also developing, from the initial single load-bearing structure to the complex structure integrating support, impact resistance and stability protection.

[0003] The existing automobile rear longitudinal beam structure has defects in many aspects, including excessive weight affecting the lightweight and fuel efficiency of the vehicle, insufficient energy absorption capacity, especially in high-strength collisions, complex installation process, possible manufacturing errors affecting production efficiency and assembly quality, poor adaptability, difficult to meet the needs of different vehicle models, and durability problems, connection components may be affected by corrosion and fatigue affecting the stability of the structure. Although the existing design has been optimized in these aspects, further improvement is still needed to improve overall performance, safety and adaptability.

[0004] Therefore, it is necessary to invent an automobile rear longitudinal beam structure. SUMMARY

[0005] To solve the above technical problems, the utility model provides an automobile rear longitudinal beam structure to solve the problem of low strength, unstable connection and loose connection of the existing structure. The automobile rear longitudinal beam structure comprises a rear longitudinal beam connecting section, a rear longitudinal beam front section, a connecting port, a connecting bracket, a rear longitudinal beam rear section, a vehicle body connecting hole, a connecting truss and a vehicle body connecting structure, wherein: the rear longitudinal beam front section is fixedly installed at the front end of the rear longitudinal beam connecting section, and the connecting port is provided at the front end of the rear longitudinal beam front section, and the connecting bracket is fixedly installed inside the connecting port; the rear longitudinal beam rear section is fixedly installed at the rear end of the rear longitudinal beam connecting section, and the vehicle body connecting hole is provided outside the rear longitudinal beam connecting section, the rear longitudinal beam front section and the vehicle body connecting hole; the connecting truss is fixedly installed inside the two groups of rear longitudinal beam connecting sections, and the vehicle body connecting structure is fixedly installed outside the rear longitudinal beam connecting section.

[0006] The connecting bracket comprises a middle filling base, an upper end support plate, a lower end supporting plate and a connecting hole, and the middle filling base is slidingly installed inside the connecting port, and the upper end support plate and the lower end supporting plate are fixedly installed at the upper and lower ends of the middle filling base respectively.

[0007] The rear section of the rear longitudinal beam comprises a rear section beam body, a reinforcing shell, a mounting positioning seat, a reinforcing cross beam and a bumper mounting seat, and the rear section beam body is fixedly installed at the rear end of the rear longitudinal beam connecting section, and the reinforcing shell is fixedly installed at the outer side of the rear section beam body; the mounting positioning seat is fixedly installed at the inner side of the rear section beam body, and the reinforcing cross beam is fixedly installed at the inner side of the mounting positioning seat, and the bumper mounting seat is fixedly installed at the rear end of the rear section beam body.

[0008] The connecting bracket is made of steel metal material, and the middle filling base is a solid metal block, which can completely fill the connecting hole; the upper end supporting plate and the lower end supporting plate are made of two groups of metal plates, and the two sides of the upper end supporting plate are bent downward, and the two sides of the lower end supporting plate are bent upward; the connecting hole penetrates through the middle filling base, the upper end supporting plate, the lower end supporting plate and the connecting hole, and is connected together through bolts.

[0009] The rear section of the rear longitudinal beam comprises a rear section beam body, a reinforcing shell, a mounting positioning seat, a reinforcing cross beam and a bumper mounting seat, and the rear section beam body is fixedly installed at the rear end of the rear longitudinal beam connecting section, and the reinforcing shell is fixedly installed at the outer side of the rear section beam body; the mounting positioning seat is fixedly installed at the inner side of the rear section beam body, and the reinforcing cross beam is fixedly installed at the inner side of the mounting positioning seat, and the bumper mounting seat is fixedly installed at the rear end of the rear section beam body.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The connecting bracket has the following effects: ① connection effect: the connecting bracket is located in the connecting hole, mainly for connecting the rear longitudinal beam structure with the front longitudinal beam, ensuring that the overall structure of the rear longitudinal beam remains connected with the front longitudinal beam; ② supporting effect: the connecting bracket provides support through the middle filling base, the upper end supporting plate and the lower end supporting plate, ensuring the stability of the connection.

[0012] It helps to maintain stability when external forces are applied at the connection point, avoiding loosening or damage; ③

[0013] Improve the rigidity of the structure: through the connecting hole and the bolt connection mode, the connecting bracket strengthens the connection between the rear longitudinal beam and the front longitudinal beam, improves the rigidity of the entire structure, and ensures that the connection part does not loosen or lose stability when the vehicle body is subjected to external forces.

[0014] 2. The rear section of the rear longitudinal beam has the following effects: ① structural support effect: the rear section of the rear longitudinal beam is one of the key parts of the rear longitudinal beam structure, responsible for bearing the structural weight of the rear part of the vehicle body and external impact forces. It is fixedly installed at the rear end of the rear longitudinal beam connecting section, and provides strong structural support force through combination with other components, maintaining the stability of the entire vehicle body;

[0015] ②Enhance the strength of the vehicle body: the rear section of the rear longitudinal beam includes components such as support rear section beam body, reinforced shell, reinforced cross beam, etc. These components work together to improve the strength and impact resistance of the rear longitudinal beam. Especially in the event of a vehicle collision, the rear section of the rear longitudinal beam can effectively disperse and absorb impact energy, reducing damage to the vehicle body; ③Anti-collision protection: the rear section of the rear longitudinal beam cooperates with the anti-collision frame mounting seat, providing a certain degree of anti-collision protection through its overall design. This part helps to reduce the damage to the vehicle body and occupants in the event of an accident, enhancing the safety of the vehicle.

[0016] 3. The automobile rear longitudinal beam structure is provided to provide strong bearing and supporting force for the vehicle, ensuring the stability of the rear part of the vehicle body. It is connected with the front longitudinal beam through the connecting bracket, enhancing the overall rigidity of the vehicle and effectively absorbing and dispersing impact energy in the event of a collision, improving the impact resistance and safety of the vehicle body. The rear longitudinal beam structure cooperates with other components such as the anti-collision frame mounting seat, reinforced shell, etc., enhancing the anti-collision protection function. It not only provides support and stable connection, but also supports the operation of other systems of the vehicle body, ensuring the structural integrity of the vehicle in the event of driving and collision. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the utility model.

[0018] Figure 2 is an enlarged view of A of the utility model.

[0019] Figure 3 is an enlarged view of B of the utility model.

[0020] In the figure:

[0021] Rear longitudinal beam connecting section 1, rear longitudinal beam front section 2, connecting port 3, connecting bracket 4, intermediate filling base body 41, upper end support plate 42, lower end support plate 43, connecting hole 45, rear longitudinal beam rear section 5, support rear section beam body 51, reinforced shell 52, mounting positioning seat 53, reinforced cross beam 54, anti-collision frame mounting seat 55, vehicle body connecting hole 6, connection truss 7, vehicle body connecting structure 8. DETAILED DESCRIPTION

[0022] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor should belong to the scope of protection of the utility model.

[0023] As shown in the accompanying Figure 1 to the accompanying Figure 3 drawings.

[0024] The utility model provides a kind of automobile rear longitudinal beam structure, including rear longitudinal beam connecting section 1, rear longitudinal beam front section 2, connecting mouth 3, connecting support 4, rear longitudinal beam rear section 5, car body connecting hole site 6, link truss 7 and car body connecting structure 8, wherein:rear longitudinal beam front section 2 is fixedly installed at the front end of rear longitudinal beam connecting section 1, and connecting mouth 3 is set in the front end of rear longitudinal beam front section 2, and the inside of connecting mouth 3 is fixedly installed with connecting support 4;Rear longitudinal beam rear section 5 is fixedly installed at the rear end of rear longitudinal beam connecting section 1, and car body connecting hole site 6 is arranged at the outside of rear longitudinal beam connecting section 1, rear longitudinal beam front section 2 and car body connecting hole site 6;The inside of two groups of rear longitudinal beam connecting section 1 is fixedly installed with link truss 7, and the outside of rear longitudinal beam connecting section 1 is fixedly installed with car body connecting structure 8.

[0025] Connecting support 4 includes intermediate filling matrix 41, upper end support plate 42, lower end supporting plate 43 and connecting hole 45, and intermediate filling matrix 41 is slidably installed in the inside of connecting mouth 3, and upper end support plate 42 and lower end supporting plate 43 are fixedly installed at the upper and lower ends of intermediate filling matrix 41 respectively.

[0026] Rear longitudinal beam rear section 5 includes support rear section beam body 51, reinforcing shell 52, installation positioning seat 53, reinforcing crossbeam 54 and anti-collision frame mounting seat 55, and support rear section beam body 51 is fixedly installed at the rear end of rear longitudinal beam connecting section 1, and reinforcing shell 52 is fixedly installed at the outside of support rear section beam body 51;Installation positioning seat 53 is fixedly installed at the inside of support rear section beam body 51, and reinforcing crossbeam 54 is fixedly installed in installation positioning seat 53, and anti-collision frame mounting seat 55 is fixedly installed at the rear end of support rear section beam body 51.

[0027] Connecting support 4 is all made of steel metal material, and intermediate filling matrix 41 is made of a solid metal block, and intermediate filling matrix 41 can completely fill connecting mouth 3;Upper end support plate 42 and lower end supporting plate 43 are made of two groups of metal plates, and the two sides of upper end support plate 42 are bent downward, and the two sides of lower end supporting plate 43 are bent upward;Connecting hole 45 penetrates intermediate filling matrix 41, upper end support plate 42, lower end supporting plate 43 and connecting mouth 3, and is connected together by bolt.

[0028] Rear longitudinal beam rear section 5 is made of two groups of parallel steel metal structures, and reinforcing shell 52 is the plate-shaped metal structure that support rear section beam body 51 is wrapped inward outside, and installation positioning seat 53 is a groove with the same shape as the cross section of reinforcing crossbeam 54;Reinforcing crossbeam 54 is a square steel metal support structure, and reinforcing crossbeam 54 connects two groups of support rear section beam body 51 together.

[0029] The installation process of the device includes preparation, component installation, inspection and debugging. First, confirm that the installation site meets the requirements and prepare the tools and components. Then, connect the rear longitudinal beam connecting section 1 with the rear longitudinal beam front section 2, fix the connecting bracket 4 with the connecting port 3, install the rear longitudinal beam rear section 5 and ensure its stability, and finally install the vehicle body connecting structure 8 and the connecting truss 7. After completing the installation, check to ensure that each component is tightly fastened without looseness, and debug to ensure that the device functions normally. Finally, perform acceptance to ensure that the device meets the safety and performance requirements.

[0030] The technical scheme of the utility model, or the technical scheme of the utility model inspires the person skilled in the art, designs similar technical scheme, and reaches the above technical effect, and all falls into the protection scope of the utility model.

Claims

1. A rear longitudinal beam structure for automobiles, characterized in that: It includes a rear longitudinal beam connecting section (1), a rear longitudinal beam front section (2), a connecting port (3), a connecting bracket (4), a rear longitudinal beam rear section (5), a vehicle body connecting hole (6), a connecting truss (7), and a vehicle body connecting structure (8), wherein: the rear longitudinal beam front section (2) is fixedly installed at the front end of the rear longitudinal beam connecting section (1), and the connecting port (3) is opened at the front end of the rear longitudinal beam front section (2), and the connecting bracket (4) is fixedly installed inside the connecting port (3); the rear longitudinal beam rear section (5) is fixedly installed at the rear end of the rear longitudinal beam connecting section (1), and the vehicle body connecting hole (6) is located on the outside of the rear longitudinal beam connecting section (1), the rear longitudinal beam front section (2), and the vehicle body connecting hole (6); the connecting truss (7) is fixedly installed on the inside of the two sets of rear longitudinal beam connecting sections (1), and the vehicle body connecting structure (8) is fixedly installed on the outside of the rear longitudinal beam connecting section (1).

2. The automotive rear longitudinal beam structure as described in claim 1, characterized in that: The connecting bracket (4) includes an intermediate filling base (41), an upper support plate (42), a lower support plate (43), and a connecting hole (45). The intermediate filling base (41) is slidably installed inside the connecting port (3). The upper support plate (42) and the lower support plate (43) are respectively fixedly installed at the upper and lower ends of the intermediate filling base (41).

3. The automotive rear longitudinal beam structure as described in claim 1, characterized in that: The rear section (5) of the rear longitudinal beam includes a supporting rear section beam body (51), a reinforcing shell (52), a mounting positioning seat (53), a reinforcing crossbeam (54), and a crash barrier mounting seat (55). The supporting rear section beam body (51) is fixedly installed at the rear end of the rear longitudinal beam connecting section (1), and the reinforcing shell (52) is fixedly installed on the outside of the supporting rear section beam body (51). The mounting positioning seat (53) is fixedly installed on the inside of the supporting rear section beam body (51), and the reinforcing crossbeam (54) is fixedly installed inside the mounting positioning seat (53). The crash barrier mounting seat (55) is fixedly installed at the rear end of the supporting rear section beam body (51).

4. The automotive rear longitudinal beam structure as described in claim 2, characterized in that: The connecting bracket (4) is made entirely of steel metal material, and the intermediate filling base (41) is a solid metal block that can completely fill the connection port (3). The upper support plate (42) and the lower support plate (43) are made of two sets of metal plates, with the upper support plate (42) bent downwards on both sides and the lower support plate (43) bent upwards on both sides. The connecting hole (45) passes through the intermediate filling base (41), the upper support plate (42), the lower support plate (43) and the connection port (3), and is connected together by bolts.

5. The automotive rear longitudinal beam structure as described in claim 3, characterized in that: The rear section (5) of the rear longitudinal beam adopts two sets of parallel steel metal structures, and the reinforcing shell (52) is a plate-shaped metal structure that wraps inward from the outside of the supporting rear section beam (51). The mounting and positioning seat (53) adopts a groove with the same shape as the cross section of the reinforcing beam (54). The reinforcing beam (54) adopts a square steel metal support structure, and the reinforcing beam (54) connects the two sets of supporting rear section beams (51) together.

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