Automobile lightweight multilayer steel sheet structure

Abstract

The utility model relates to a steel sheet structure technical field especially is a kind of automobile lightweight multilayer steel sheet structure, including fixed seat, fixed seat front end is fixedly connected with first bumper steel sheet subassembly, first bumper steel sheet subassembly front end is fixedly connected with second bumper steel sheet subassembly, first bumper steel sheet subassembly inner side is equipped with buffer connecting piece, second bumper steel sheet subassembly includes seat board, and seat board and arc steel sheet are integrated fixed structure, arc steel sheet inner side is equipped with arc recess, buffer connecting piece includes welding plate, and the position fixedly connected with built-in sliding block of welding plate near rear end, and built-in sliding block top is fixedly connected with column rod, and column rod outer side is fixedly connected with rubber seal ring, in the utility model, device significantly reduces additional reserved compression space, significantly reduces the demand to the volume of interior arrangement, multilayer high-strength structure maintains original strength simultaneously, gives consideration to weight reduction and impact resistance, realizes lightweight and reliable protection dual promotion.

Description

Technical Field

[0001] This utility model relates to the field of steel plate structure technology, specifically to a lightweight multi-layer steel plate structure for automobiles. Background Technology

[0002] Automotive lightweight multi-layer steel plate structure is a composite material structure formed by stacking multiple layers of steel plates of different materials or with different properties to create a high-strength, high-rigidity, and lightweight structure. This structure can effectively reduce the weight of the car while ensuring the safety and performance of the vehicle, thereby improving fuel economy and reducing emissions. The steel plates used in car bumpers are usually made of high-strength steel plates combined with lightweight materials such as aluminum alloys and composite materials. This structure can achieve the effect of lightweighting while ensuring that the bumper has good impact resistance and weather resistance. Regarding the steel plates used in car bumpers, in order to improve the impact resistance of car bumpers, some designs use spring telescopic mechanisms to achieve a buffering function. This design does enhance the buffering capacity of the bumper, but at the same time, it also requires a certain space to be reserved between the bumper and the car body for the spring telescopic mechanism. This may have a certain impact on the utilization of the car's interior space, resulting in a relative reduction of the interior space. Therefore, to address the above problems, a lightweight multi-layer steel plate structure for automobiles is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a lightweight multi-layer steel plate structure for automobiles to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A lightweight multi-layer steel plate structure for automobiles includes a fixed base. A first bumper steel plate assembly is fixedly connected to the front end of the fixed base. A second bumper steel plate assembly is fixedly connected to the front end of the first bumper steel plate assembly. A buffer connector is installed inside the first bumper steel plate assembly. The second bumper steel plate assembly includes a base plate. The base plate and the arc-shaped steel plate are integrally fixed structures. An arc-shaped groove is formed on the inner side of the arc-shaped steel plate. The buffer connector includes a welding plate. An internal slider is fixedly connected to the welding plate near the rear end. A column is fixedly connected to the top of the internal slider. A rubber sealing ring is fixedly connected to the outside of the column. A spring is fixedly connected to the top of the rubber sealing ring. The welding plate is welded and fixed to the base plate near the front end.

[0005] As a further optimization of this utility model, the first bumper steel plate assembly includes a sheet steel plate, and the inner side of the sheet steel plate is provided with an assembly groove, a column hole and a flow-slowing hole, and the column hole is connected to the assembly groove.

[0006] As a further optimization of this utility model, the rear end of the sheet steel plate is fixedly connected to the fixed base, and the front end of the sheet steel plate is fixedly connected to the base plate by bolts.

[0007] As a further optimization of this utility model, the built-in slider is embedded and installed inside the assembly slot, the built-in slider is slidably connected inside the assembly slot, and the shape of the built-in slider matches the opening shape of the assembly slot.

[0008] As a further optimization of this utility model, a cross-shaped silicone valve is fixedly connected to the inner side of the flow-slowing hole, and the flow-slowing hole is vertically aligned with the column hole.

[0009] As a further optimization of this utility model, the column rod slides inside the column hole, the outer side of the rubber sealing ring is in contact with the inner side of the column hole, and the end of the spring away from the column rod is fixedly connected inside the column hole.

[0010] As a further optimization of this utility model, the arc-shaped steel plate is arc-shaped, and the arc-shaped groove is arc-shaped.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, by setting a first bumper steel plate assembly, a second bumper steel plate assembly, and a buffer connector, the car bumper steel plate achieves buffering by extending and deforming upward or downward when impacted. The entire extension process continuously absorbs impact energy, significantly reducing the extra reserved compression space, thereby significantly reducing the occupation of the vehicle's installation space. This method improves buffering performance while maintaining the original strength of the steel plate by relying on a multi-layer high-strength structure, achieving an effective balance between lightweight and protection. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the structure at point A; Figure 3 This utility model Figure 1 A schematic diagram of the structure at point B; Figure 4 This is a schematic diagram of the buffer connector structure of this utility model; Figure 5 This is a cross-sectional structural diagram of the first bumper steel plate assembly of this utility model; Figure 6 This utility model Figure 5 A schematic diagram of the structure at point C.

[0013] In the diagram: 1. Fixture; 2. First bumper steel plate assembly; 21. Sheet steel plate; 22. Assembly slot; 23. Column hole; 24. Flow control hole; 25. Cross silicone valve; 3. Second bumper steel plate assembly; 31. Seat plate; 32. Curved steel plate; 33. Curved groove; 4. Buffer connector; 41. Welded plate; 42. Built-in slider; 43. Column; 44. Rubber sealing ring; 45. Spring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Please see Figures 1-6 This utility model provides a technical solution: A lightweight multi-layer steel plate structure for automobiles includes a fixed base 1. A first bumper steel plate assembly 2 is fixedly connected to the front end of the fixed base 1. A second bumper steel plate assembly 3 is fixedly connected to the front end of the first bumper steel plate assembly 2. A buffer connector 4 is installed inside the first bumper steel plate assembly 2. The second bumper steel plate assembly 3 includes a seat plate 31. The seat plate 31 and the arc-shaped steel plate 32 are integrally fixed structures. An arc-shaped groove 33 is opened on the inner side of the arc-shaped steel plate 32. The buffer connector 4 includes a welding plate 41. An internal slider 42 is fixedly connected to the welding plate 41 near the rear end. A column rod 43 is fixedly connected to the top of the internal slider 42. A rubber sealing ring 44 is fixedly connected to the outside of the column rod 43. A spring 45 is fixedly connected to the top of the rubber sealing ring 44. The welding plate 41 is welded and fixed to the seat plate 31 near the front end.

[0017] As a further implementation of this solution, the first bumper steel plate assembly 2 includes a sheet steel plate 21. The inner side of the sheet steel plate 21 is provided with an assembly groove 22, a column hole 23 and a flow-damping hole 24. The column hole 23 communicates with the assembly groove 22. The rear end of the sheet steel plate 21 is fixedly connected to the fixed seat 1, and the front end of the sheet steel plate 21 is fixedly connected to the seat plate 31 by bolts. Through the above settings, space is left for the installation of the buffer connector 4. At the same time, the connection between the sheet steel plate 21 and the seat plate 31 can be replaced later for the second bumper steel plate assembly 3 and the buffer connector 4, improving practicality. As a further implementation of this solution, the built-in slider 42 is embedded in the assembly groove 22. The built-in slider 42 is slidably connected to the inside of the assembly groove 22. The shape of the built-in slider 42 matches the opening shape of the assembly groove 22. Through the above setting, the movement direction of the welding plate 41 is limited, and the energy is transferred in time and the buffer response is faster when impacted. As a further implementation of this solution, a cross-shaped silicone valve 25 is fixedly connected to the inner side of the slow-flow hole 24. The slow-flow hole 24 is vertically aligned with the column hole 23. The column rod 43 slides inside the column hole 23. The outer side of the rubber sealing ring 44 is in contact with the inner side of the column hole 23. The end of the spring 45 away from the column rod 43 is fixedly connected to the inside of the column hole 23. Through the above settings, the damping of the gas and the elastic buffering of the spring 45 increase the buffering effect and improve the protection performance. As a further implementation of this solution, the arc-shaped steel plate 32 is arc-shaped, and the arc-shaped groove 33 is arc-shaped. With the above settings, the arc-shaped steel plate 32 extends up and down when it is impacted, with a long energy absorption stroke. The arc-shaped groove 33 provides clearance space, ensuring that the deformation of the arc-shaped steel plate 32 does not occupy additional longitudinal arrangement dimensions, achieving both buffering and compactness.

[0018] Workflow: During the production of bumpers using automotive steel plates, the rear end of the sheet steel plate 21 is welded and fixed to two fixing seats 1. The spring 45 is placed inside the column hole 23 and fixed with adhesive. Then, one end of the rubber sealing ring 44 is coated with adhesive and the column rod 43 is inserted into the column hole 23. The column rod 43 is fixed to the spring 45. Then, the built-in slider 42 is inserted into the assembly slot 22 and fixed to the column rod 43 by welding. The curved steel plate 32 is bent and the seat plate 31 is fixed to the sheet steel plate 21 with bolts. The welding plate 41 is fixed to the edge of the curved steel plate 32 by welding. The installation is completed after the curved steel plate 32 is fixed to multiple welding plates 41. When using steel plates in car bumpers, upon impact, the external object first strikes the curved steel plate 32. The deformation of the curved steel plate 32 absorbs the impact energy. The design of the curved steel plate 32 and the curved groove 33 allows the upper and lower ends of the curved steel plate 32 to deform upwards and downwards respectively. The curved steel plate 32 causes the corresponding welding plate 41 to move, which in turn causes the column rod 43 to move. Since the column rod 43 is sealed to the column hole 23 in the sheet steel plate 21 by a rubber sealing ring 44, the column rod 43... 3. The internal gas is pushed and deformed by the pressure of the gas. The gas flows out from the slow flow hole 24. Since the diameter of the slow flow hole 24 is small, the speed at which the gas flows out from the column hole 23 can be controlled, thereby achieving the effect of gas damping. At the same time, the column rod 43 squeezes the column hole 23 and achieves the buffering effect again through the column hole 23, further improving the protective performance. When the impact force is more severe, the deformation of the sheet steel plate 21 achieves the purpose of buffering again, thereby achieving the effect of protecting the car frame. Based on the above principles, when the steel plate of the car bumper deforms, the device extends upward or downward through the deformation of the steel plate, providing cushioning during the extension process. This reduces the space occupied by the bumper steel plate in the car, which not only improves the cushioning effect but also ensures the strength of the bumper steel plate.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight multi-layer steel plate structure for automobiles, comprising a mounting base (1), characterized in that: The front end of the fixed seat (1) is fixedly connected to the first bumper steel plate assembly (2), the front end of the first bumper steel plate assembly (2) is fixedly connected to the second bumper steel plate assembly (3), and the inner side of the first bumper steel plate assembly (2) is equipped with a buffer connector (4). The second bumper steel plate assembly (3) includes a seat plate (31), the seat plate (31) and the arc-shaped steel plate (32) are an integral fixed structure, and an arc-shaped groove (33) is provided on the inner side of the arc-shaped steel plate (32). The buffer connector (4) includes a welding plate (41), a built-in slider (42) is fixedly connected to the welding plate (41) near the rear end, a column rod (43) is fixedly connected to the top of the built-in slider (42), a rubber sealing ring (44) is fixedly connected to the outside of the column rod (43), and a spring (45) is fixedly connected to the top of the rubber sealing ring (44). The welding plate (41) is welded and fixed to the base plate (31) near the front end.

2. The lightweight multi-layer steel plate structure for automobiles according to claim 1, characterized in that: The first bumper steel plate assembly (2) includes a sheet steel plate (21), and the sheet steel plate (21) has an assembly groove (22), a column hole (23) and a slow flow hole (24) on its inner side. The column hole (23) is connected to the assembly groove (22).

3. The lightweight multi-layer steel plate structure for automobiles according to claim 2, characterized in that: The rear end of the sheet steel plate (21) is fixedly connected to the fixed seat (1), and the front end of the sheet steel plate (21) is fixedly connected to the seat plate (31) by bolts.

4. The lightweight multi-layer steel plate structure for automobiles according to claim 1, characterized in that: The built-in slider (42) is embedded in the interior of the assembly slot (22), and the built-in slider (42) is slidably connected to the interior of the assembly slot (22). The shape of the built-in slider (42) matches the opening shape of the assembly slot (22).

5. The lightweight multi-layer steel plate structure for automobiles according to claim 2, characterized in that: A cross-shaped silicone valve (25) is fixedly connected to the inner side of the slow-flow hole (24), and the slow-flow hole (24) is vertically aligned with the column hole (23).

6. The lightweight multi-layer steel plate structure for automobiles according to claim 1, characterized in that: The rod (43) slides inside the column hole (23), the outer side of the rubber sealing ring (44) is in contact with the inner side of the column hole (23), and the end of the spring (45) away from the rod (43) is fixedly connected inside the column hole (23).

7. The lightweight multi-layer steel plate structure for automobiles according to claim 1, characterized in that: The arc-shaped steel plate (32) has an arc-shaped structure, and the arc-shaped groove (33) has an arc-shaped structure.

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