Rear floor cross beam provided with inner supporting plate

Abstract

The utility model discloses a rear floor beam provided with an inner support plate, which comprises two welding pieces and a beam arranged between the welding pieces, the beam and the welding pieces are respectively of a U-shaped structure, the opposite sides of the welding pieces are fixedly connected with connecting pieces, the opposite sides of the connecting pieces are fixedly connected with bending parts, and the bending parts are fixedly connected with the inner support plate. A mounting plate is fixedly connected to the middle of the inner side of the cross beam, second supporting plates are symmetrically and fixedly connected to the two sides of the mounting plate, the two second supporting plates form a splayed structure, the bottom ends of the two second supporting plates are connected with the tops of the corresponding bending parts, and first supporting plates are fixedly connected to the sides, close to the mounting plate, of the bending parts; the two first supporting plates also form a splayed structure. Through the structure, the structural strength of the rear floor cross beam is enhanced, and the bearing force of the cross beam can be more uniformly transmitted to the whole structure, so that the high strength and stability of the rear floor cross beam structure are realized, and the safety of an automobile is powerfully guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile components, in particular to a rear floor crossbeam equipped with an inner supporting plate. Background Art

[0002] The rear floor beam of a car is an important component of the vehicle structure. It is mainly located at the bottom of the car, connecting the two sides of the car body, and plays a role in supporting and enhancing the rigidity of the car body.

[0003] A search of the prior art revealed a Chinese patent application numbered "202123084459.9" for a "rear floor cross member equipped with an inner support plate." The patent primarily comprises a cross member and a welded component, with a support plate secured to one side. The top of the support plate is provided with a wedge-shaped block and a screw groove, respectively. A support plate is installed within the cross member. While the support plate and reinforcement rods significantly enhance the cross member's load-bearing capacity, preventing deformation of the rear floor after a collision and improving overall vehicle safety, the inclusion of support plates and reinforcement rods within the cross member strengthens the cross member. However, while the support plate and reinforcement rods within the cross member serve to strengthen the cross member, the load and external impact forces are borne solely by the cross member, relying solely on the cross member's inherent strength to support the entire vehicle structure. This places extremely high demands on the cross member's strength and stability. With this design, the strength and stability of the cross member directly determine the overall safety of the vehicle. Failure of the cross member under extreme loads could cause deformation, instability, or other safety hazards within the vehicle body structure, posing significant safety risks in practical applications. Therefore, the present invention provides a rear floor cross member equipped with an inner support plate to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present utility model is to provide a rear floor cross beam equipped with an inner support plate, wherein the figure-eight structure formed by the second support plate cooperates with the figure-eight structure of the first support plate to jointly enhance the structural strength of the rear floor cross beam and facilitates the more uniform transmission of the bearing capacity of the cross beam to the entire structure, thereby achieving high strength and stability of the rear floor cross beam structure and providing strong protection for the safety of the vehicle.

[0005] To achieve the above-mentioned purpose, a rear floor crossbeam with an inner support plate installed is provided, comprising two welded parts and a crossbeam arranged between the welded parts, the crossbeam and the welded parts are both configured as U-shaped structures, the opposite sides of the welded parts are fixedly connected with connecting parts, the opposite sides of the connecting parts are fixedly connected with a bent portion, the middle part of the inner side of the crossbeam is fixedly connected with a mounting plate, the two sides of the mounting plate are symmetrically fixedly connected with a second support plate, the two second support plates form an eight-shaped structure, and the bottom ends of the two second support plates are connected to the tops of the corresponding bent portions, the side of the bent portion close to the mounting plate is fixedly connected to the first support plate, the two first support plates also form an eight-shaped structure, and the side of the mounting plate close to the bottom is symmetrically provided with two inclined portions, and the top ends of the first support plates are both in contact with the corresponding inclined portions.

[0006] According to the rear floor cross beam installed with the inner support plate, the second support plate is fixedly connected to the corresponding bent portion by bolts.

[0007] According to the rear floor cross member installed with the inner support plate, the cross member is also fixedly connected to the top of the connecting member by bolts.

[0008] According to the rear floor crossbeam installed with the inner support plate, the top of each of the first support plates is fixedly connected to a plurality of connecting plates, and the bottom sides of each of the second support plates are in contact with the tops of the corresponding connecting plates.

[0009] According to the rear floor crossbeam installed with the inner support plate, a plurality of reinforcing plates with triangular structures are symmetrically fixedly connected to the bottom of the connecting member, and the reinforcing plates are fixedly connected to the welding member.

[0010] According to the rear floor crossbeam equipped with an inner support plate, the crossbeam is made of high-strength steel, and the first support plate and the second support plate are both made of aluminum alloy.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the existing technology, this rear floor crossbeam is equipped with an inner support plate. The eight-shaped structure formed by the second support plate cooperates with the eight-shaped structure of the first support plate, which jointly enhances the structural strength of the rear floor crossbeam and helps to transfer the bearing capacity of the crossbeam more evenly to the entire structure, thereby achieving high strength and stability of the rear floor crossbeam structure and providing strong protection for the safety of the car.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of a first overall structure of a rear floor cross member equipped with an inner support plate according to the present invention;

[0016] Figure 2 This is a schematic diagram of a second overall structure of a rear floor cross member equipped with an inner support plate according to the present invention;

[0017] Figure 3 This is a schematic diagram of the internal cross-sectional structure of a rear floor cross-beam installed with an inner support plate according to the present invention;

[0018] Figure 4 The utility model is a rear floor beam with an inner support plate installed Figure 3 Schematic diagram of the main structure.

[0019] Legend:

[0020] 1. Welding part; 2. Crossbeam; 3. Bolt; 4. Mounting plate; 5. First support plate; 6. Connector; 7. Reinforcement plate; 8. Connecting plate; 9. Bending part; 10. Second support plate; 11. Inclined part. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] Reference Figure 1-4 , an embodiment of the present invention is a rear floor crossbeam with an inner support plate installed, which includes two welding parts 1 and a crossbeam 2 arranged between the welding parts 1. The crossbeam 2 and the welding part 1 are both configured as U-shaped structures. The opposite sides of the welding parts 1 are fixedly connected with connecting parts 6, and the opposite sides of the connecting parts 6 are fixedly connected with a bent portion 9. The middle part of the inner side of the crossbeam 2 is fixedly connected with a mounting plate 4, and the second support plates 10 are symmetrically fixedly connected on both sides of the mounting plate 4. The two second support plates 10 form an eight-shaped structure, and the bottom ends of the two second support plates 10 are connected to the tops of the corresponding bent portions 9. The side of the bent portion 9 close to the mounting plate 4 is fixedly connected with a first support plate 5, and the two first support plates 5 also form an eight-shaped structure. Two inclined portions 11 are symmetrically provided on one side of the mounting plate 4 close to the bottom, and the tops of the first support plates 5 are both in contact with the corresponding inclined portions 11.

[0023] When crossbeam 2 is installed between welded components 1, its ends are supported by connectors 6 and mounted on welded components 1. The bottom of a second support plate 10 is mounted on the top of the bent portion 9. The two second support plates 10 form a figure-eight structure, which strengthens the support force of crossbeam 2 and improves its bending resistance. Furthermore, the inclined surface 11 at the bottom of mounting plate 4 is connected to the first support plate 5 on connector 6. The figure-eight structure of the two first support plates 5 cooperates with the second support plate 10 to enhance the structural strength of the rear floor crossbeam. Furthermore, the top of the first support plate 5 cooperates with the inclined surface 11 on the mounting plate 4, which facilitates a more even transfer of the load-bearing capacity of crossbeam 2 throughout the entire structure, thereby achieving high strength and stability for the rear floor crossbeam structure and providing a strong guarantee for vehicle safety.

[0024] To ensure the firmness of the connection, the second support plate 10 is fixedly connected to the corresponding bent portion 9 by bolts 3, and the crossbeam 2 is also fixedly connected to the top of the connecting member 6 by bolts 3. The use of high-strength bolts 3 for structural connection ensures the stability of the structure and facilitates the installation, manufacturing, disassembly and maintenance work between components.

[0025] The tops of the first support plates 5 are each fixedly connected to a plurality of connecting plates 8, and the bottoms of the second support plates 10 are each affixed to the tops of corresponding connecting plates 8. The arrangement of the connecting plates 8 between the first support plates 5 and the second support plates 10 forms a stable support structure, thereby enhancing the deformation resistance of the first support plates 5 and the second support plates 10. The bottoms of the connectors 6 are each symmetrically fixedly connected to a plurality of triangular-shaped reinforcing plates 7, which are fixedly connected to the weldment 1 to enhance the connection strength between the weldment 1 and the connector 6.

[0026] Crossbeam 2 is made of high-strength steel, which has excellent tensile strength and rigidity, ensuring that it can withstand heavy loads and impacts, providing excellent safety. Both the first support plate 5 and the second support plate 10 are made of aluminum alloy. Aluminum alloy supports provide stable support, reduce vehicle weight, and improve fuel economy.

[0027] Working Principle: When the crossbeam 2 is installed between the welded parts 1, its two ends are mounted on the welded parts 1 through the support of the connecting parts 6. The bottom of the second support plate 10 is installed on the top of the bent part 9. The two second support plates 10 form an eight-shaped structure, which strengthens the support force of the crossbeam 2 and improves the bending resistance of the crossbeam 2. In addition, the inclined surface 11 at the bottom of the mounting plate 4 is connected to the first support plate 5 on the connecting part 6. Under the action of the eight-shaped structure of the two first support plates 5, they cooperate with the second support plate 10 to jointly enhance the structural strength of the rear floor crossbeam. At the same time, the top of the first support plate 5 cooperates with the inclined surface 11 on the mounting plate 4, which facilitates the more even transfer of the bearing capacity of the crossbeam 2 to the entire structure, thereby achieving high strength and stability of the rear floor crossbeam structure and providing strong protection for the safety of the vehicle.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A rear floor cross member equipped with an inner support plate, characterized in that: The invention comprises two welding parts (1) and a crossbeam (2) arranged between the welding parts (1), wherein the crossbeam (2) and the welding part (1) are both configured as U-shaped structures, the welding parts (1) are both fixedly connected to a connecting part (6) on one side facing each other, and the connecting part (6) is both fixedly connected to a bending part (9) on the other side, and the middle part of the inner side of the crossbeam (2) is fixedly connected to a mounting plate (4), and the mounting plate (4) is symmetrically fixedly connected to a second support plate (10) on both sides, and the two second support plates (10) form an eight-shaped structure, and the bottom ends of the two second support plates (10) are both connected to the top of the corresponding bending part (9), and the bending part (9) is fixedly connected to the first support plate (5) on the side close to the mounting plate (4), and the two first support plates (5) also form an eight-shaped structure, and the mounting plate (4) is symmetrically provided with two inclined parts (11) on the side close to the bottom, and the top ends of the first support plates (5) are both in contact with the corresponding inclined parts (11).

2. The rear floor cross member with an inner support plate installed according to claim 1, characterized in that: The second support plate (10) is fixedly connected to the corresponding bent portion (9) via bolts (3).

3. The rear floor cross member with an inner support plate installed according to claim 2, characterized in that: The crossbeam (2) is also fixedly connected to the top of the connecting member (6) by means of bolts (3).

4. The rear floor cross member with an inner support plate installed according to claim 3, characterized in that: The tops of the first support plates (5) are fixedly connected to a plurality of connecting plates (8), and the bottom sides of the second support plates (10) are in contact with the tops of the corresponding connecting plates (8).

5. The rear floor cross member with an inner support plate installed according to claim 4, characterized in that: A plurality of reinforcing plates (7) with triangular structures are symmetrically and fixedly connected to the bottom of the connecting member (6), and the reinforcing plates (7) are fixedly connected to the welding member (1).

6. The rear floor cross member with an inner support plate installed according to claim 5, characterized in that: The crossbeam (2) is made of high-strength steel, and the first support plate (5) and the second support plate (10) are both made of aluminum alloy.

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