A welded component for the rear floor beam of an automobile

Abstract

This utility model relates to the field of automotive parts manufacturing technology, specifically a welded assembly of a rear floor crossbeam for automobiles. The assembly includes a crossbeam with a reinforcing plate internally inserted. The reinforcing plate contains several equally spaced reinforcing ribs. Each end of the crossbeam has a welding end, and each welding end contains a connecting end. The two connecting ends are respectively fixedly connected to the crossbeam and the reinforcing plate. A T-shaped insert is integrally formed on each connecting end. This utility model uses a T-shaped insert and a T-slot to engage the connecting end and the welding end, and secures them using a plate and limiting bolts. This connection method is not only convenient and quick to install and disassemble, but also provides a strong and reliable connection. During vehicle production and assembly, it can significantly improve production efficiency and reduce assembly costs; it also facilitates operation and reduces maintenance time and costs during later repairs and replacements.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically to a welded component for a rear floor crossbeam of an automobile. Background Technology

[0002] In the automotive manufacturing industry, the rear floor crossbeam, as a crucial component of the vehicle body structure, plays a key role in the overall strength, rigidity, and collision safety of the vehicle. Traditional welded rear floor crossbeam components are typically relatively simple in structure, and have certain shortcomings in terms of strength and stability.

[0003] For example, some crossbeams lack effective internal reinforcement, making them prone to deformation or even breakage under heavy loads or impacts, affecting vehicle safety and lifespan. Furthermore, the existing connection structures between crossbeams and other body components are cumbersome to install and disassemble, increasing production and assembly time and costs, and creating inconvenience for later maintenance and replacement. Moreover, some crossbeams were not designed with lightweighting and noise / vibration reduction in mind, leading to increased vehicle energy consumption and reduced ride comfort.

[0004] In view of this, we propose a welded component for the rear floor beam of an automobile. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a welded component for the rear floor beam of an automobile.

[0006] The technical solution of this utility model is:

[0007] A welded assembly for a car rear floor crossbeam includes a crossbeam with a reinforcing plate internally inserted. The reinforcing plate contains several equally spaced reinforcing ribs. Each end of the crossbeam has a welding end, and each welding end contains a connecting end. The two connecting ends are respectively fixedly connected to the crossbeam and the reinforcing plate. A T-shaped insert is integrally formed on the connecting end. A T-shaped slot adapted to the size of the T-shaped insert is formed on the welding end. A transversely positioned insert plate is provided on the side of the welding end, passing through the welding end and the T-shaped insert, and is fixedly connected to the welding end by a limiting bolt. By using the connecting end and the welding end in conjunction with the T-shaped insert and T-shaped slot, and securing them with the insert plate and limiting bolt, this connection method is not only convenient and quick to install and disassemble, but also provides a strong and reliable connection. During vehicle production and assembly, it can significantly improve production efficiency and reduce assembly costs; it also facilitates operation during later maintenance and replacement, reducing maintenance time and costs.

[0008] As a preferred technical solution, a jacket made of rubber is fixedly connected to the outer wall of the crossbeam, and the outer ring wall of the jacket is flush with the outer ring wall of the connecting end. The rubber jacket can play a certain role in buffering and vibration reduction, reducing the vibration and impact on the crossbeam during vehicle operation, while also reducing noise transmission and improving the comfort of the vehicle interior.

[0009] As a preferred technical solution, an extension plate is integrally formed on both sides of the welding end, and the extension plate is welded and fixed to the rear floor of the vehicle. The extension plate increases the connection area between the welding end and the rear floor of the vehicle, improves the strength and stability of the connection, and enables the crossbeam to better withstand various loads during vehicle operation.

[0010] As a preferred technical solution, each of the extension plates has two symmetrically formed fixing holes, and the extension plates are fixed to the rear floor of the vehicle by fixing bolts. This dual fixing method (combination of welding and bolt fixing) further enhances the connection strength between the crossbeam and the rear floor of the vehicle, and can effectively prevent the crossbeam from separating from the vehicle body in extreme situations such as vehicle collisions, thus ensuring passenger safety.

[0011] As a preferred technical solution, the welding end and the T-shaped insert are respectively provided with a first horizontal slot and a second horizontal slot for the insert plate to pass through, and the outer ring wall of the insert plate is tightly fitted with the inner walls of the two horizontal slots. The tight fit between the insert plate and the horizontal slots can effectively prevent the connection end from shifting within the welding end, ensuring the reliability of the connection structure, and also facilitating the installation and removal of the insert plate.

[0012] As a preferred technical solution, the insert plate has a fixed limiting plate and a movable limiting plate at each end. The fixed limiting plate is integrally formed with the insert plate, and the movable limiting plate has an integrally formed limiting block that engages with the insert plate. By setting the fixed limiting plate and the movable limiting plate, the insert plate can be doubly limited, preventing it from loosening or falling off during use, and further improving the stability of the connection structure.

[0013] As a preferred technical solution, both the movable limiting plate and the fixed limiting plate are symmetrically provided with two limiting bolts, which are threadedly connected to the welding end. The use of multiple limiting bolts can provide greater tightening force, ensuring a firm and reliable connection between the insert plate and the welding end, and enhancing the structural strength of the entire welded component.

[0014] As a preferred technical solution, each of the two outer walls of the welding end is provided with a mounting groove for placing a fixed limiting plate and a movable limiting plate, respectively, and the outer walls of the fixed limiting plate and the movable limiting plate are flush with the outer wall of the welding end. The design of the mounting groove allows the fixed limiting plate and the movable limiting plate to be embedded in the welding end, ensuring the flatness of the overall appearance of the welded part, avoiding the impact of protrusions on the installation and use of other vehicle components, and also reducing air resistance and noise generation during vehicle operation.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a T-shaped insert and a T-shaped slot to connect the end cap and the welding end cap, and secures them with a plate and limiting bolts. This connection method is not only convenient and quick to install and disassemble, but also provides a strong and reliable connection. During vehicle production and assembly, it can significantly improve production efficiency and reduce assembly costs; furthermore, it facilitates operation during later maintenance and replacement, reducing maintenance time and costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the welding end and the connecting end in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the welding end in this utility model;

[0020] Figure 4 This is a schematic diagram of the connecting end in this utility model;

[0021] Figure 5 This is a schematic diagram of the insert plate in this utility model.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 100. Crossbeam; 101. Outer sleeve; 200. Reinforcing plate; 201. Reinforcing rib; 300. Welding end; 301. Extension plate; 302. Fixing hole; 303. T-slot; 304. First horizontal slot; 305. Mounting groove; 400. Connecting end; 401. T-block; 402. Second horizontal slot; 500. Insert plate; 501. Fixed limiting plate; 502. Limiting bolt; 503. Movable limiting plate; 504. Limiting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to the accompanying drawings. This utility model provides a technical solution:

[0026] like Figures 1-4 As shown, a welded assembly of a car rear floor crossbeam 100 includes a crossbeam 100 made of high-strength steel, possessing excellent load-bearing capacity. A reinforcing plate 200, also made of high-strength steel, is inserted and installed inside the crossbeam 100. Its dimensions are adapted to the internal space of the crossbeam 100 to ensure stable installation. The reinforcing plate 200 contains several equally spaced reinforcing ribs 201, which are integrally formed with the reinforcing plate 200, effectively enhancing the strength and rigidity of the reinforcing plate 200, thereby improving the overall structural performance of the crossbeam 100. Welded ends 300 are provided at both ends of the crossbeam 100, and the welded ends 300 are fixedly connected to the crossbeam 100 through a welding process, ensuring a firm connection. Each welding end 300 is equipped with a connecting end 400, which is fixed to the crossbeam 100 and the reinforcing plate 200 by welding, forming a stable integral structure with the crossbeam 100, the reinforcing plate 200, and the connecting end 400. A T-shaped insert 401 is integrally formed on the connecting end 400, and a T-shaped slot 303 adapted to the size of the T-shaped insert 401 is provided on the welding end 300. During installation, the T-shaped insert 401 is inserted into the T-shaped slot 303 to achieve initial positioning of the connecting end 400 and the welding end 300.

[0027] like Figure 1 and Figure 5 As shown, in a preferred embodiment, the welding end 300 has a horizontally arranged insert plate 500 on its side. The insert plate 500 passes through the welding end 300 and the T-shaped insert 401, and is fixedly connected to the welding end 300 by a limiting bolt 502. When installing the insert plate 500, first pass the insert plate 500 through the first horizontal slot 304 on the welding end 300 and the second horizontal slot 402 on the T-shaped insert 401, ensuring that the outer ring wall of the insert plate 500 is tightly fitted with the inner walls of the two horizontal slots. Then, use the limiting bolt 502 to fasten the insert plate 500 to the welding end 300 to prevent the connecting end 400 from shifting within the welding end 300, thus ensuring the reliability of the connection structure.

[0028] like Figure 1As shown, in a preferred embodiment, a jacket 101 is fixedly connected to the outer wall of the crossbeam 100. The jacket 101 is made of rubber and has good elasticity and flexibility. The outer ring wall of the jacket 101 is flush with the outer ring wall of the connecting end 400. During vehicle operation, the jacket 101 can effectively buffer and absorb vibrations and impacts from the outside, reduce noise transmission into the vehicle, and improve ride comfort.

[0029] like Figure 1 As shown, in a preferred embodiment, both sides of the welding end 300 are integrally formed with extension plates 301. The extension plates 301 are fixed to the rear floor of the vehicle by welding. Simultaneously, each extension plate 301 has two symmetrically formed fixing holes 302. The extension plates 301 are fixed to the rear floor of the vehicle by fixing bolts. This combination of welding and bolt fixing greatly increases the connection strength and stability between the crossbeam 100 and the rear floor of the vehicle, enabling the crossbeam 100 to better withstand various loads during vehicle operation.

[0030] like Figure 5 As shown, in a preferred embodiment, the insert plate 500 has a fixed limiting plate 501 and a movable limiting plate 503 at both ends. The fixed limiting plate 501 is integrally formed with the insert plate 500, and the movable limiting plate 503 has a limiting block 504 integrally formed on it to engage with the insert plate 500. When installing the insert plate 500, the fixed limiting plate 501 is first placed in the mounting groove 305 on one side of the welding end 300, and then the limiting block 504 on the movable limiting plate 503 is inserted into the insert plate 500, so that the movable limiting plate 503 is connected to the insert plate 500 and placed in the mounting groove 305 on the other side of the welding end 300. Both the movable limiting plate 503 and the fixed limiting plate 501 are symmetrically provided with two limiting bolts 502. The limiting bolts 502 are threadedly connected to the welding end 300. By tightening the limiting bolts 502, the insert plate 500 can be doubly limited to prevent the insert plate 500 from loosening or falling off during use, thereby further improving the stability of the connection structure.

[0031] In use, the welded assembly of the automotive rear floor crossbeam 100 of this utility model is first assembled into a single structure by welding the crossbeam 100, reinforcing plate 200, and connecting end 400. Then, the T-shaped insert 401 of the connecting end 400 is initially positioned by inserting it into the T-shaped slot 303 of the welding end 300. Next, the insert plate 500 is passed through the welding end 300 and the T-shaped insert 401, and fixed in place by limiting bolts 502, fixed limiting plate 501, and movable limiting plate 503, ensuring a firm connection between the connecting end 400 and the welding end 300. Finally, the extension plates 301 on both sides of the welding end 300 are fixedly connected to the automotive rear floor using welding and fixing bolts, completing the installation of the entire automotive rear floor crossbeam 100 welded assembly. During vehicle operation, the reinforcing plate 200 and reinforcing rib 201 inside the crossbeam 100 can effectively withstand various loads, the rubber jacket 101 plays a role in buffering, vibration reduction and noise reduction, and the optimized connection structure ensures the firmness and stability of the connection between the crossbeam 100 and the vehicle body, thereby improving the overall performance and safety of the vehicle.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welded component for a rear floor crossbeam (100) of an automobile, characterized in that: The system includes a crossbeam (100), inside which a reinforcing plate (200) is inserted and installed. The reinforcing plate (200) has a plurality of equally spaced reinforcing ribs (201). Each end of the crossbeam (100) has a welded end (300), and each welded end (300) has a connecting end (400) installed therein. The two connecting ends (400) are fixedly connected to the crossbeam (100) and the reinforcing plate (200) respectively. A T-shaped insert (401) is integrally formed on the connecting end (400). A T-shaped slot (303) adapted to the size of the T-shaped insert (401) is provided on the welding end (300). A horizontally arranged insert plate (500) is provided on the side of the welding end (300). The insert plate (500) passes through the welding end (300) and the T-shaped insert (401) and is fixedly connected to the welding end (300) by a limiting bolt (502).

2. The automotive rear floor crossbeam (100) welded assembly as described in claim 1, characterized in that: A jacket (101) is fixedly connected to the outer wall of the crossbeam (100). The jacket (101) is made of rubber and the outer ring wall of the jacket (101) is flush with the outer ring wall of the connecting end (400).

3. The automotive rear floor crossbeam (100) welded assembly as described in claim 2, characterized in that: Both sides of the welding end (300) are integrally formed with an extension plate (301), and the extension plate (301) is welded and fixed to the rear floor of the car.

4. The welded assembly of the rear floor crossbeam (100) of an automobile as described in claim 3, characterized in that: Each of the extension plates (301) has two symmetrically provided fixing holes (302), and the extension plates (301) are fixed to the rear floor of the vehicle by fixing bolts.

5. The automotive rear floor crossbeam (100) welded assembly as described in claim 4, characterized in that: The welding end (300) and the T-shaped insert (401) are respectively provided with a first horizontal slot (304) and a second horizontal slot (402) for the insert plate (500) to pass through, and the outer ring wall of the insert plate (500) is tightly fitted with the inner wall of the two horizontal slots.

6. The automotive rear floor crossbeam (100) welded assembly as described in claim 5, characterized in that: The insert plate (500) has a fixed limiting plate (501) and a movable limiting plate (503) at both ends. The fixed limiting plate (501) is integrally formed with the insert plate (500), and the movable limiting plate (503) has a limiting block (504) integrally formed on it, which is inserted and cooperates with the insert plate (500).

7. The automotive rear floor crossbeam (100) welded assembly as described in claim 6, characterized in that: Two limiting bolts (502) are symmetrically provided on both the movable limiting plate (503) and the fixed limiting plate (501), and the limiting bolts (502) are threadedly connected to the welding end (300).

8. The automotive rear floor crossbeam (100) welded assembly as described in claim 7, characterized in that: The welding end (300) has an installation groove (305) on both sides of its outer wall, which is used to place a fixed limiting plate (501) and a movable limiting plate (503) respectively. The outer walls of the fixed limiting plate (501) and the movable limiting plate (503) are flush with the outer wall of the welding end (300).

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