Automobile rear floor beam reinforcing structure

Abstract

The utility model discloses an automobile rear floor cross beam reinforcing structure, which belongs to the technical field of automobiles and comprises a cross beam main body, welding seats are respectively arranged on two sides of the cross beam main body, extension beam mechanisms are respectively arranged at two ends of the cross beam main body, and a plurality of through holes are formed in the top surface of the cross beam main body. A plurality of welding nuts are fixedly connected to the top face of an inner cavity of the cross beam body and located under the penetrating holes, two side reinforcing ribs are fixedly connected to the inner wall of the cross beam body, and a plurality of inner supporting blocks are fixedly connected to the inner cavity of the cross beam body in a sleeved mode. According to the utility model, the upper side reinforcing ribs are welded on the two sides of the inner cavity of the cross beam main body, the strength of the cross beam main body in the length direction is enhanced by the side reinforcing ribs, the inner supporting blocks are welded on the inner cavity of the cross beam main body, and the inner side of the cross beam main body is supported by the inner supporting blocks, so that the supporting strength of the cross beam main body is ensured; therefore, the overall strength of the cross beam is ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and more specifically, to a reinforcing structure for the rear floor beam of an automobile. Background Technology

[0002] The rear floor crossbeam is an important component of the car chassis. Its main functions are to improve vehicle stability, bear suspension force, improve the vehicle's vibration resistance, and connect various parts of the vehicle together, thereby strengthening and stabilizing the vehicle body.

[0003] A search revealed that utility model patent CN215436645U discloses a novel automotive rear floor crossbeam structure, comprising a rear floor crossbeam body and a crossbeam extension plate. Both ends of the rear floor crossbeam body are provided with a rear floor crossbeam reinforcing plate, which is integrally formed with the rear floor crossbeam body. Both the rear floor crossbeam body and the rear floor crossbeam reinforcing plate are provided with a welding surface I adapted to the rear floor. Both the rear floor crossbeam body and the rear floor crossbeam reinforcing plate are welded to the rear floor through welding surface I. The crossbeam extension plate is a hollow square cavity structure with an open lower end. A body component mounting plate is fixedly installed within the hollow cavity of the crossbeam extension plate. Several welding nuts are evenly distributed on the body component mounting plate. The crossbeam extension plate is welded to the rear floor crossbeam body. This patent allows for the unified installation of body components on the rear floor crossbeam through the body component mounting plate, standardizing the assembly benchmark and reducing the number of parts. However, the above patent still has the following shortcomings: the inner side of the crossbeam is a hollow structure, resulting in insufficient overall strength of the crossbeam. Therefore, we propose a reinforcement structure for the rear floor beam of a car. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a reinforcing structure for the rear floor beam of an automobile.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A reinforcing structure for a car rear floor crossbeam includes a crossbeam body, welding seats on both sides of the crossbeam body, extension beam mechanisms at both ends of the crossbeam body, multiple through holes on the top surface of the crossbeam body, multiple welding nuts fixedly connected to the top surface of the inner cavity of the crossbeam body and directly below the through holes, two side reinforcing ribs fixedly connected to the inner wall of the crossbeam body, and multiple inner support blocks fixedly sleeved within the inner cavity of the crossbeam body.

[0007] As a preferred embodiment of this utility model, the extension beam mechanism includes an extension welded beam fixedly connected to the end of the inner cavity of the crossbeam body, the end of the extension welded beam is provided with a bending plate, and the end of the bending plate is provided with a lap weld plate.

[0008] As a preferred embodiment of this utility model, the top surface of the main body of the crossbeam is provided with a plurality of first weight-reducing holes.

[0009] As a preferred embodiment of this utility model, each of the inner support blocks is provided with a second weight reduction hole.

[0010] As a preferred embodiment of this utility model, multiple plug welding holes are provided on the top and side surfaces at both ends of the crossbeam body.

[0011] As a preferred embodiment of this utility model, the bottom surface of the extended welded beam and the bent plate is fixedly connected with multiple support plates.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] In this invention, side reinforcing ribs are welded to both sides of the inner cavity of the main body of the crossbeam to enhance the strength of the main body of the crossbeam in the length direction. Multiple inner support blocks are welded to the inner cavity of the main body of the crossbeam to support the inner side of the main body of the crossbeam, thereby ensuring the support strength of the main body of the crossbeam and thus ensuring the overall strength of the crossbeam. This invention is highly practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded view of the overall structure of this utility model;

[0016] Figure 3 This is a bottom view of the overall design of this utility model;

[0017] Figure 4 This is a schematic diagram of the main structure of the crossbeam of this utility model;

[0018] Figure 5 This is a schematic diagram of the extension beam mechanism of this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. Main body of the crossbeam; 2. Extension beam mechanism; 3. Through hole; 4. Welded nut; 5. Inner support block; 6. Side reinforcing rib; 7. Second weight reduction hole; 8. Welding seat; 9. First weight reduction hole; 10. Extension welded beam; 11. Bending plate; 12. Lap weld plate; 13. Support plate; 14. Plug weld hole. Detailed Implementation

[0021] 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] Please see Figure 1-5 A reinforcing structure for a car rear floor crossbeam includes a crossbeam body 1, welding seats 8 on both sides of the crossbeam body 1, extension beam mechanisms 2 at both ends of the crossbeam body 1, multiple through holes 3 on the top surface of the crossbeam body 1, multiple welding nuts 4 fixedly connected to the top surface of the inner cavity of the crossbeam body 1 and directly below the through holes 3, two side reinforcing ribs 6 fixedly connected to the inner wall of the crossbeam body 1, and multiple inner support blocks 5 fixedly sleeved in the inner cavity of the crossbeam body 1.

[0026] In this embodiment, the welding seat 8 on the side of the main body 1 of the crossbeam is connected to the rear floor of the car by welding.

[0027] For details, please refer to Figure 1 , Figure 3 and Figure 5 The extension beam mechanism 2 includes an extension welded beam 10 fixedly connected to the end of the inner cavity of the crossbeam body 1. The end of the extension welded beam 10 is provided with a bending plate 11, and the end of the bending plate 11 is provided with a lap weld plate 12.

[0028] In this embodiment, the extension beam mechanisms 2 at both ends of the main body 1 of the crossbeam are connected by welding. The overall length of the crossbeam is adjusted by adjusting the position of the extension welding beam 10 welded to the end of the main body 1 of the crossbeam so that the crossbeam can be adapted to the rear floor of the car of different widths, and the two lap welding plates 12 are welded to the two sides of the rear floor.

[0029] For details, please refer to Figure 3 Multiple first weight-reducing holes 9 are provided on the top surface of the main body of the crossbeam 1.

[0030] In this embodiment, the weight of the crossbeam is reduced through the first weight-reducing hole 9.

[0031] For details, please refer to Figure 3 Each inner support block 5 is provided with a second weight reduction hole 7.

[0032] In this embodiment, the weight of the crossbeam is reduced using the second weight-reducing hole 7.

[0033] For details, please refer to Figure 1 and Figure 4 Multiple plug welding holes 14 are provided on the top and side surfaces at both ends of the main beam 1.

[0034] In this embodiment, the extended welding beam 10 at the end of the main beam 1 is welded through the plug welding hole 14.

[0035] For details, please refer to Figure 3 and Figure 5 Multiple support plates 13 are fixedly connected to the bottom surface of the extended welded beam 10 and the bent plate 11.

[0036] In this embodiment, the support plate 13 is welded to the bottom of the extended welded beam 10 and the bent plate 11, thereby ensuring the strength of the extended welded beam 10 and the bent plate 11.

[0037] Working principle: In use, firstly, side reinforcing ribs 6 are welded to both sides of the inner cavity of the crossbeam body 1 to ensure the strength of the crossbeam body 1 in the length direction. At the same time, multiple inner support blocks 5 are welded to the inner cavity of the crossbeam body 1 to support the inner side of the crossbeam body 1 and ensure the strength of the crossbeam. Then, extension welding beams 10 are inserted into both ends of the crossbeam body 1, and the distance between the two lap welding plates 12 is controlled with a tape measure to make the distance match the width of the rear floor of the car. At this time, plug welding is performed through the plug welding hole 14 to fix the extension welding beams 10 to both ends of the crossbeam body 1. Finally, the crossbeam is placed on the rear floor, so that the welding seat 8 and the rear floor, and the lap welding plate 12 and the rear floor are welded together to ensure the strength of the rear floor. In addition, other automotive equipment can be installed on the top of the crossbeam body 1 by using the through hole 3, welding nut 4 and bolt.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A reinforcing structure for a rear floor beam of an automobile, comprising a beam body (1), characterized in that: Welding seats (8) are provided on both sides of the main body of the crossbeam (1), and extension beam mechanisms (2) are provided at both ends of the main body of the crossbeam (1). Multiple through holes (3) are opened on the top surface of the main body of the crossbeam (1). Multiple welding nuts (4) are fixedly connected to the top surface of the inner cavity of the main body of the crossbeam (1) and directly below the through holes (3). Two side reinforcing ribs (6) are fixedly connected to the inner wall of the main body of the crossbeam (1). Multiple inner support blocks (5) are fixedly sleeved in the inner cavity of the main body of the crossbeam (1).

2. The automotive rear floor crossbeam reinforcement structure according to claim 1, characterized in that: The extension beam mechanism (2) includes an extension welded beam (10) fixedly connected to the end of the inner cavity of the beam body (1). The end of the extension welded beam (10) is provided with a bending plate (11), and the end of the bending plate (11) is provided with a lap weld plate (12).

3. The automotive rear floor crossbeam reinforcement structure according to claim 1, characterized in that: The top surface of the main body of the crossbeam (1) is provided with a plurality of first weight reduction holes (9).

4. The automotive rear floor crossbeam reinforcement structure according to claim 1, characterized in that: Each of the inner support blocks (5) is provided with a second weight reduction hole (7).

5. The automotive rear floor crossbeam reinforcement structure according to claim 1, characterized in that: Multiple plug welding holes (14) are provided on the top and side surfaces at both ends of the main body of the crossbeam (1).

6. The automotive rear floor crossbeam reinforcement structure according to claim 2, characterized in that: The bottom surfaces of the extended welded beam (10) and the bent plate (11) are fixedly connected to multiple support plates (13).

Images