Lightweight rear anti-collision beam structure of a vehicle body

Abstract

The utility model discloses a kind of lightweight car body rear anti-collision beam structures, including reinforcing plate and beam plate, further including buffer block, connecting plate, splice plate, splice frame, connecting frame and buffer assembly, S-shaped buffer cavity is opened in beam plate and reinforcing plate, it is convenient to buffer lightweight car driving vibration, buffer block is set to two, two buffer blocks are located at the two sides of reinforcing plate respectively, connecting plate is set to two, two connecting plates are symmetrically connected at the two sides of beam plate, splice plate is set to two, two splice plates are symmetrically connected at the two sides of reinforcing plate, splice frame is fixedly connected on splice plate, connecting plate is opened with the splice interface matched with splice frame, splice frame can be stably installed on connecting plate, and elastic pad is fixedly connected on splice frame and connecting frame. The lightweight car body rear anti-collision beam structure is convenient to reduce the connection loosening condition of the lightweight car body rear anti-collision beam structure because of the driving vibration of vehicle body.

Description

Technical Field

[0001] This utility model relates to the field of anti-collision beam structure technology, specifically to a lightweight rear anti-collision beam structure for a vehicle body. Background Technology

[0002] Lightweight vehicles refer to automobiles that reduce their curb weight through various technical means while ensuring that the vehicle's strength, safety performance, and core performance are not reduced or even optimized. Today, it has become an important development direction for the automotive industry to meet the needs of environmental protection and energy conservation. The rear anti-collision beam of a lightweight vehicle body is mostly composed of a main beam and an energy-absorbing box. The main beam has a hollow tubular structure, as well as a single-layer or double-layer stamped steel plate structure. The current rear anti-collision beam's buffering performance is not ideal. To address the aforementioned issues, utility model patent CN217294446U discloses a rear anti-collision beam structure for a lightweight automotive body. This structure increases the buffering force of the rear anti-collision beam by placing a buffer A between the beam and the reinforcing plate, and a buffer B between the beam and the buffer mechanism, thus mitigating the impact force on the vehicle. While this improves the buffering performance, the nuts on the buffers are prone to loosening after long-term driving vibrations in lightweight vehicles. Furthermore, the connections between the buffers, reinforcing plate, and beam may also loosen, affecting the buffering effect. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a lightweight rear anti-collision beam structure for vehicle bodies, thereby solving the problem mentioned in the background art where connections become loose due to vehicle vibrations.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lightweight rear anti-collision beam structure for a vehicle body, including a reinforcing plate and a beam plate, and also including a buffer block, a connecting plate, a splicing plate, a splicing frame, a connecting frame and a buffer assembly; The buffer block is configured as two, and the two buffer blocks are respectively located on both sides of the reinforcing plate; The connecting plate is configured as two, and the two connecting plates are symmetrically connected to both sides of the beam plate; The splicing plate is configured as two, and the two splicing plates are symmetrically connected to both sides of the reinforcing plate; The splicing frame is fixedly connected to the splicing plate, and the splicing plate has a splicing interface that matches the splicing frame; The connecting frame is mounted on the splicing plate, and the buffer block has a connecting groove that matches the connecting frame. The buffer assembly is installed between the splicing frame and the connecting frame.

[0005] Furthermore, the buffer component includes: A buffer plate, which is rotatably connected to the bottom end of the connecting frame; A buffer strip, which is rotatably connected to the bottom end of the splicing frame; A fixing frame, which is detachably connected between the buffer plate and the buffer strip; An elastic cylinder, wherein multiple elastic cylinders are configured, and an array of multiple elastic cylinders is installed on the upper side of the fixing frame; An elastic rod is slidably connected through each of the elastic cylinders, and the elastic rod is fixedly connected to the fixing frame; A spring, which is fixedly connected between each of the elastic rods and the inner wall of the elastic cylinder; A shock-absorbing strip is connected through each of the elastic rods, and a shock-absorbing groove is provided on the inner side wall of each elastic cylinder for the shock-absorbing strip to slide. A positioning component is installed between the fixing frame, the buffer plate, and the buffer strip.

[0006] Furthermore, the positioning component includes: A positioning rod, which is detachably connected through the fixed frame, the buffer plate, and the buffer strip; The positioning frame is provided in two parts, and the two positioning frames are symmetrically and detachably connected to both sides of the positioning rod; Positioning screws, wherein multiple positioning screws are provided, and each of the multiple positioning screws is threadedly connected between each positioning bracket and the fixing bracket.

[0007] Furthermore, the buffer block has a connection port that matches the connecting frame, and the connecting plate has a splicing interface that matches the splicing frame. Both the connection port and the splicing interface are fixedly connected with buffer pads.

[0008] Furthermore, the fixing frame has two buffer openings that match the buffer plate and the buffer strip, and shock-absorbing pads are fixedly connected inside the buffer openings.

[0009] Furthermore, both the beam plate and the reinforcing plate are provided with S-shaped buffer cavities.

[0010] Furthermore, elastic pads are fixedly connected to both the splicing frame and the connecting frame.

[0011] Compared with the prior art, this utility model provides a lightweight rear anti-collision beam structure for a vehicle body, which has the following beneficial effects: 1. In this utility model, the splicing frame, splicing interface, connecting frame and connecting groove are coordinated to facilitate the stable splicing of buffer block, connecting plate and splicing plate, so as to facilitate the stable connection of reinforcing plate and beam plate, thereby facilitating the improvement of the stability of rear impact protection for lightweight vehicles; 2. In this utility model, the buffer component facilitates the connection buffer of the splicing frame and the connecting frame, so as to reduce the impact of vibration on the buffer block, splicing plate and connecting plate, thereby reducing the impact of vibration on the reinforcing plate and beam plate, and further reducing the possibility of loosening of the connection of the lightweight vehicle rear anti-collision beam structure due to vehicle driving vibration. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a structural diagram showing the connection plate, buffer plate, and fixing frame of this application. Figure 3 This is a cross-sectional structural diagram showing the cooperation between the fixing frame, the elastic cylinder, and the positioning frame in this application; Figure 4 This is an exploded structural diagram showing the assembly of the buffer block, connecting frame, and buffer pad in this application.

[0013] In the diagram: 1. Reinforcing plate; 2. Beam plate; 3. Buffer block; 4. Connecting plate; 5. Splicing plate; 6. Splicing frame; 7. Connecting frame; 8. Buffer plate; 9. Buffer strip; 10. Fixing frame; 11. Elastic cylinder; 12. Elastic rod; 13. Spring; 14. Shock-absorbing strip; 15. Positioning rod; 16. Positioning frame; 17. Positioning screw; 18. Buffer pad; 19. Shock-absorbing pad. 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] Please see Figures 1 to 4A lightweight rear anti-collision beam structure for a vehicle body includes a reinforcing plate 1 and a beam plate 2, as well as buffer blocks 3, connecting plates 4, splicing plates 5, splicing frames 6, connecting frames 7, and a buffer assembly. Both the beam plate 2 and the reinforcing plate 1 have S-shaped buffer cavities to facilitate the buffering of vibrations during vehicle operation, reducing the impact of vibrations on the beam plate 2 and the reinforcing plate 1. Two buffer blocks 3 are provided, located on opposite sides of the reinforcing plate 1. Two connecting plates 4 are provided, symmetrically connected to opposite sides of the beam plate 2. Two splicing plates 5 are provided, symmetrically connected to opposite sides of the reinforcing plate 1. The splicing frame 6 is fixedly connected to the splicing plates 5. The connecting plates 4 have splicing interfaces that match the splicing frame 6, allowing the splicing frame 6 to be connected to the connecting plates 4. Stable installation is achieved by fixing elastic pads to both the splicing frame 6 and the connecting frame 7. When the splicing frame 6 and the connecting frame 7 are subjected to vibration, the elastic pads will deform to buffer the impact force, reducing the impact of vibration on the splicing frame 6 and the connecting frame 7. The connecting frame 7 is installed on the splicing plate 5. The buffer block 3 has a connecting groove that matches the connecting frame 7, which facilitates the stable installation of the connecting frame 7 on the buffer block 3. The buffer assembly is installed between the splicing frame 6 and the connecting frame 7. The buffer block 3 has a connecting port that matches the connecting frame 7, and the connecting plate 4 has a splicing interface that matches the splicing frame 6. Both the connecting port and the splicing interface are fixedly connected with buffer pads 18, which facilitates the impact buffering of the connecting frame 7 and the splicing frame 6 and improves the service life of the connecting frame 7 and the splicing frame 6.

[0016] refer to Figure 2 as well as Figure 3 The buffer assembly includes a buffer plate 8, a buffer strip 9, a fixing frame 10, elastic cylinders 11, elastic rods 12, a spring 13, shock-absorbing strips 14, and a positioning component. The buffer plate 8 is rotatably connected to the bottom end of the connecting frame 7, and the buffer strip 9 is rotatably connected to the bottom end of the splicing frame 6. The fixing frame 10 is detachably connected between the buffer plate 8 and the buffer strip 9. The fixing frame 10 has two buffer openings that match the buffer plate 8 and the buffer strip 9. Shock-absorbing pads 19 are fixedly connected inside the buffer openings, which increases the stability of the buffer plate 8 and the buffer strip 9 when installed on the fixing frame 10. Multiple elastic cylinders 11 are provided. An array is installed on the upper side of the fixed frame 10. An elastic rod 12 is slidably connected to each elastic cylinder 11 and fixedly connected to the fixed frame 10. A spring 13 is fixedly connected between each elastic rod 12 and the inner wall of the elastic cylinder 11. A shock-absorbing strip 14 is connected to each elastic rod 12. A shock-absorbing groove is provided on the inner wall of each elastic cylinder 11 for the shock-absorbing strip 14 to slide, which can buffer the rebound of the spring 13 and reduce the impact of the rebound on the elastic rod 12 and the fixed frame 10. The positioning component is installed between the fixed frame 10, the buffer plate 8 and the buffer strip 9. When the lightweight vehicle vibrates during operation, the fixed frame 10 will move accordingly, causing multiple elastic rods 12 to move within multiple elastic cylinders 11, which in turn causes multiple springs 13 to extend and retract accordingly. By absorbing potential energy through multiple springs 13, the impact force can be buffered, reducing the impact of vibration on the fixed frame 10, buffer plate 8, and buffer strip 9. At the same time, the movement of the fixed frame 10 can cause the buffer strip 9 and buffer plate 8 to rotate. The movement of the buffer strip 9 and buffer plate 8 can also disperse and buffer the impact force (the slight up-and-down movement of the splicing frame 6 and connecting frame 7 will not affect the connection stability of the buffer block 3, splicing plate 5, and connecting plate 4, and the splicing plate 5 and connecting plate 4 will not move horizontally).

[0017] refer to Figure 1 , Figure 2 as well as Figure 3 The positioning assembly includes a positioning rod 15, a positioning frame 16, and positioning screws 17. The positioning rod 15 is detachably connected through the fixed frame 10, the buffer plate 8, and the buffer strip 9. There are two positioning frames 16, which are symmetrically and detachably connected to both sides of the positioning rod 15. There are multiple positioning screws 17, which are threadedly connected between each positioning frame 16 and the fixed frame 10. After the buffer strip 9 and buffer plate 8 are installed, the positioning rod 15 is inserted between the fixing frame 10, the buffer strip 9 and the buffer plate 8, and two positioning frames 16 are installed on both sides of the positioning rod 15 and the fixing frame 10 respectively. Then, multiple positioning screws 17 are tightened between the fixing frame 10 and the two positioning frames 16, which increases the stability of the buffer plate 8 and buffer strip 9 installed on the fixing frame 10, thereby increasing the stability of the splicing frame 6 and connecting frame 7 installed on the connecting plate 4 and buffer block 3.

[0018] In summary, during the driving process or when the lightweight vehicle is impacted, the connecting frame 7 and the splicing frame 6 will move accordingly, causing the buffer strip 9 and the buffer plate 8 to rotate accordingly, thus buffering the impact force. At the same time, the movement of the buffer strip 9 and the buffer plate 8 will cause the fixing frame 10 to rise and fall a certain distance. During the rising and falling of the fixing frame 10, multiple elastic rods 12 will move in multiple elastic cylinders 11 respectively, and multiple springs 13 will extend and retract to buffer the impact force, thereby reducing the impact of vibration and impact on the beam plate 2 and the reinforcing plate 1, and improving the effect of the rear anti-collision beam of the lightweight vehicle body.

[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 rear anti-collision beam structure for a vehicle body, comprising a reinforcing plate (1) and a beam plate (2), characterized in that, Also includes: Buffer block (3), wherein two buffer blocks (3) are provided, and the two buffer blocks (3) are respectively located on both sides of the reinforcing plate (1); Connecting plate (4), the connecting plate (4) is configured as two, the two connecting plates (4) are symmetrically connected to both sides of the beam plate (2); Splicing plate (5), the splicing plate (5) is configured as two, and the two splicing plates (5) are symmetrically connected to both sides of the reinforcing plate (1); The splicing frame (6) is fixedly connected to the splicing plate (5), and the connecting plate (4) has a splicing interface that matches the splicing frame (6); A connecting frame (7) is installed on the splicing plate (5), and a connecting groove matching the connecting frame (7) is provided on the buffer block (3); A buffer assembly is installed between the splicing frame (6) and the connecting frame (7).

2. The lightweight rear anti-collision beam structure for a vehicle body according to claim 1, characterized in that, The buffer component includes: A buffer plate (8) is rotatably connected to the bottom end of the connecting frame (7); A buffer strip (9) is rotatably connected to the bottom end of the splicing frame (6); A fixing frame (10) is detachably connected between the buffer plate (8) and the buffer strip (9); Elastic cylinder (11), wherein multiple elastic cylinders (11) are provided, and multiple elastic cylinders (11) are arrayed and installed on the upper side of the fixing frame (10); An elastic rod (12) is slidably connected through each elastic cylinder (11), and the elastic rod (12) is fixedly connected to the fixing frame (10); A spring (13) is fixedly connected between each of the elastic rods (12) and the inner wall of the elastic cylinder (11); The shock-absorbing strip (14) is connected through each of the elastic rods (12), and the inner wall of each elastic cylinder (11) is provided with a shock-absorbing groove for the shock-absorbing strip (14) to slide. A positioning component is installed between the fixing frame (10), the buffer plate (8), and the buffer strip (9).

3. The lightweight rear anti-collision beam structure for a vehicle body according to claim 2, characterized in that, The positioning component includes: Positioning rod (15), which is detachably connected through the fixed frame (10), the buffer plate (8) and the buffer strip (9); Positioning frame (16), two positioning frames (16) are provided, and the two positioning frames (16) are symmetrically and detachably connected to both sides of the positioning rod (15); Positioning screws (17), wherein multiple positioning screws (17) are provided, and multiple positioning screws (17) are threadedly connected between each positioning bracket (16) and the fixing bracket (10).

4. The lightweight rear anti-collision beam structure for a vehicle body according to claim 3, characterized in that, The buffer block (3) has a connection port that matches the connecting frame (7), and the connecting plate (4) has a splicing interface that matches the splicing frame (6). Both the connection port and the splicing interface are fixedly connected with buffer pads (18).

5. A lightweight rear anti-collision beam structure for a vehicle body according to claim 4, characterized in that, The fixed frame (10) has two buffer openings that match the buffer plate (8) and the buffer strip (9), and shock-absorbing pads (19) are fixedly connected inside the buffer openings.

6. A lightweight rear anti-collision beam structure for a vehicle body according to claim 5, characterized in that, Both the beam plate (2) and the reinforcing plate (1) are provided with S-shaped buffer cavities.

Images