Light-weight automobile anti-collision beam structure

Abstract

The invention discloses a light-weight automobile anti-collision beam structure, and relates to the technical field of automobile anti-collision, the light-weight automobile anti-collision beam structure comprises a carbon fiber main plate and a base plate, the side edge of the carbon fiber main plate is fixedly connected with a cavity, a potential energy adjusting assembly is arranged in the cavity, and the potential energy adjusting assembly comprises a transmission rod arranged in the cavity; the side, close to the cavity, of the transmission rod is fixedly connected with a first bevel gear, the side edge of the first bevel gear is in meshed connection with a second bevel gear, the side edge of the second bevel gear is fixedly connected with a connecting rod, the side, away from the second bevel gear, of the connecting rod is fixedly connected with a long plate, and the side edge of the long plate is fixedly connected with a protruding rod. The side, close to the long plate, of the protruding rod is slidably connected with a rhombic groove, a sliding plate is slidably connected into the base plate, a first spring is fixedly connected to the lower portion of the sliding plate, and therefore the compression degree of the first spring is adjusted, appropriate prestress is applied, and by means of the design, the anti-collision beam structure can automatically adjust elastic potential energy according to changes of the external environment or internal requirements; the optimal performance is kept.

Description

Technical Field

[0001] The invention relates to the technical field of automobile anti-collision, and in particular to a lightweight automobile anti-collision beam structure. Background Art

[0002] The automobile anti-collision beam is a device used to reduce the collision energy absorbed when the vehicle is hit. It consists of a main beam, an energy absorption box, and a mounting plate connected to the car. The main beam and the energy absorption box can effectively absorb the collision energy when the vehicle collides at a low speed, and minimize the damage to the longitudinal beam of the vehicle body by the impact force, thereby playing a protective role for the vehicle. The lightweight automobile anti-collision beam structure is an important development direction in the field of automotive engineering, aiming to improve the fuel efficiency and reduce emissions of the vehicle while maintaining or improving the anti-collision performance. The lightweight automobile anti-collision beam structure can achieve the lightweight goal of the vehicle while ensuring the anti-collision performance by selecting suitable materials, optimizing the structural design, and adopting advanced simulation analysis and multi-objective optimization methods. With the continuous advancement of technology and the reduction of costs, lightweight anti-collision beams will be more widely used in the future.

[0003] After searching, the Chinese patent number CN217294446U discloses a rear anti-collision beam structure for a lightweight automobile body, including a beam plate, the beam plate is connected to the reinforcement plate through a connecting rod A, and the two sides of the beam plate are connected to the buffer mechanism through a connecting rod B. By setting a reinforcement plate at the front end of the beam plate, the anti-collision beam's ability to withstand the impact of the automobile is increased, and the damage to the vehicle body is reduced. The buffer mechanism includes a buffer shell, a buffer block and a buffer member C. The interior of the buffer shell is a cylindrical cavity structure. The buffer block is connected to the connecting rod B. The buffer member C is arranged in the inner cavity of the buffer shell. The buffer block is a circular structure. The buffer block compresses the buffer member C in the cylindrical cavity inside the buffer shell to relieve the collision force on the rear end of the automobile, avoiding damage to the main parts of the automobile caused by strong impact. By setting the buffer member A between the beam plate and the reinforcement plate and the buffer member B between the beam plate and the buffer mechanism, the buffer force of the rear anti-collision beam is increased, the impact force borne by the automobile is relieved, and the damage to the main body of the automobile is reduced.

[0004] However, during actual use, the above-mentioned device performs protective operations through various buffer components, and it is difficult to apply prestress to the spring, resulting in the device being unable to adjust the elastic potential energy according to changes in the external environment or internal needs, which means that the equipment may not be able to maintain optimal performance under different conditions, which may cause the equipment to exceed safety limits and increase the risk of accidents. Therefore, a lightweight automotive anti-collision beam structure is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art that protective operations are performed through various buffer components, which makes it difficult to apply prestress to the spring, resulting in the device being unable to adjust the elastic potential energy according to changes in the external environment or internal needs, which means that the equipment may not be able to maintain optimal performance under different conditions, which may cause the equipment to exceed safety limits and increase the risk of accidents. A lightweight automobile anti-collision beam structure is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A lightweight automobile anti-collision beam structure comprises a carbon fiber main board and a base plate, the side of the carbon fiber main board is fixedly connected to a cavity, a potential energy adjustment component is arranged inside the cavity, the potential energy adjustment component comprises a transmission rod arranged inside the cavity, a first bevel gear is fixedly connected to a side of the transmission rod close to the cavity, a second bevel gear is meshedly connected to a side of the first bevel gear, a connecting rod is fixedly connected to a side of the second bevel gear, a long plate is fixedly connected to a side of the connecting rod away from the second bevel gear, a convex rod is fixedly connected to a side of the long plate, a diamond groove is slidably connected to a side of the convex rod close to the long plate, a slide plate is slidably connected to the inside of the base plate, a first spring is fixedly connected below the slide plate, the transmission rod drives the second bevel gear to rotate through the first bevel gear, the second bevel gear drives the long plate to rotate through the connecting rod, the long plate drives the convex rod to slide on the inner wall of the diamond groove, and during the sliding process of the diamond groove, the slide plate moves downward and compresses the first spring to apply elastic potential energy prestress to absorb energy;

[0008] The main body of the device is made of composite materials such as carbon fiber and glass fiber, which have excellent mechanical properties and designability. It not only has the characteristics of high strength and high modulus, but can also effectively absorb collision energy and improve vehicle safety.

[0009] The above technical solution further includes:

[0010] The carbon fiber main board is fixedly connected to the cavity, the carbon fiber main board is fixedly connected to the base plate, the transmission rod is rotationally connected to the cavity, a torsion block is fixedly connected to the side of the transmission rod away from the first bevel gear, the connecting rod is rotationally connected to the cavity, and the long plate is rotationally connected to the base plate.

[0011] The diamond-shaped groove is arranged inside the slide plate, a convex plate is fixedly connected to the side of the diamond-shaped groove, and a limiting groove is arranged inside the convex plate.

[0012] A round rod is fixedly connected above the slide plate, and a curved anti-collision plate is fixedly connected to a side of the round rod away from the slide plate.

[0013] A fixed base is fixedly connected to one side of the base plate close to the first spring, the first spring and the fixed base are fixedly connected, a sliding rod is slidably connected inside the fixed base, and the sliding rod is fixedly connected to the slide plate.

[0014] A third bevel gear is meshedly connected to a side of the first bevel gear away from the second bevel gear;

[0015] Wherein, the third bevel gear can drive another set of internal components of the potential energy regulating component to make them run synchronously.

[0016] A second spring is fixedly connected to one side of the carbon fiber main board close to the base plate, and the second spring is fixedly connected to the arc-shaped anti-collision plate.

[0017] A third spring is fixedly connected above the cavity, and the third spring is fixedly connected to the arc-shaped anti-collision plate.

[0018] Sensors are evenly distributed above the arc-shaped anti-collision plate;

[0019] There are multiple groups of sensors arranged around the arc-shaped anti-collision plate to sense an impending collision.

[0020] A connecting plate is slidably connected to the side of the carbon fiber main board, and the connecting plate is fixedly connected to the arc-shaped anti-collision plate. A mounting plate is arranged below the carbon fiber main board, and a mounting hole is opened inside the mounting plate.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, the design of the potential energy adjustment component realizes the dynamic adjustment of the elastic potential energy of the first spring. Through the linkage of the transmission rod, the first bevel gear, the second bevel gear, the connecting rod and the long board, and the sliding of the convex rod in the diamond groove, the descending distance of the slide plate can be accurately controlled, thereby adjusting the compression degree of the first spring and applying appropriate prestress. This design enables the anti-collision beam structure to automatically adjust the elastic potential energy according to changes in the external environment or internal needs, maintain the best performance, and reduce the risk of accidents.

[0023] 2. In the present invention, the shock-absorbing and anti-collision performance of the anti-collision beam structure is further enhanced by adding the second spring and the third spring. When a collision occurs, the arc-shaped anti-collision plate will be subjected to the impact force, which will be transmitted to the slide plate through the round rod, thereby compressing the first spring, the second spring and the third spring. These springs jointly absorb the collision energy, effectively reduce the impact on the vehicle body, and protect the safety of passengers.

[0024] 3. In the present invention, the design of the mounting plate and the mounting hole enables the anti-collision beam structure to be conveniently installed on the automobile. At the same time, the connection design between the components is reasonable, which is convenient for disassembly and replacement, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a lightweight automobile anti-collision beam structure proposed by the present invention;

[0026] Figure 2 It is a schematic diagram of the external structure of the present invention;

[0027] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0028] Figure 4 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0029] Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0030] Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0031] In the figure: 1. carbon fiber main board; 2. cavity; 3. transmission rod; 4. torsion block; 5. first bevel gear; 6. second bevel gear; 7. connecting rod; 8. long plate; 9. base plate; 10. convex rod; 11. slide plate; 12. diamond groove; 13. convex plate; 14. limit groove; 15. round rod; 16. arc-shaped anti-collision plate; 17. first spring; 18. fixed base; 19. slide rod; 20. third bevel gear; 21. second spring; 22. third spring; 23. sensor; 24. connecting plate; 25. mounting plate; 26. mounting hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] like Figure 1-Figure 6As shown, a lightweight automobile anti-collision beam structure proposed by the present invention includes a carbon fiber main board 1 and a base board 9, the carbon fiber main board 1 is fixedly connected to a cavity 2 on the side, a potential energy adjustment component is arranged inside the cavity 2, and the potential energy adjustment component includes a transmission rod 3 arranged inside the cavity 2, a first bevel gear 5 is fixedly connected to the side of the transmission rod 3 close to the cavity 2, a second bevel gear 6 is meshedly connected to the side of the first bevel gear 5, a connecting rod 7 is fixedly connected to the side of the second bevel gear 6, a long plate 8 is fixedly connected to the side of the connecting rod 7 away from the second bevel gear 6, and the long plate 8 is fixedly connected to the side of the long plate 8. A convex rod 10 is fixedly connected, and a diamond groove 12 is slidably connected to the side of the convex rod 10 close to the long plate 8. A slide plate 11 is slidably connected inside the base plate 9, and a first spring 17 is fixedly connected below the slide plate 11. The transmission rod 3 drives the second bevel gear 6 to rotate through the first bevel gear 5, and the second bevel gear 6 drives the long plate 8 to rotate through the connecting rod 7. The long plate 8 drives the convex rod 10 to slide on the inner wall of the diamond groove 12. During the sliding process of the diamond groove 12, the slide plate 11 moves downward and compresses the first spring 17 to apply elastic potential energy prestress to absorb energy.

[0035] The carbon fiber main board 1 is fixedly connected to the cavity 2, the carbon fiber main board 1 is fixedly connected to the base plate 9, the transmission rod 3 is rotationally connected to the cavity 2, the side of the transmission rod 3 away from the first bevel gear 5 is fixedly connected to the torsion block 4, the connecting rod 7 is rotationally connected to the cavity 2, and the long plate 8 is rotationally connected to the base plate 9.

[0036] The diamond groove 12 is formed inside the slide plate 11 , and a convex plate 13 is fixedly connected to the side of the diamond groove 12 , and a limiting groove 14 is formed inside the convex plate 13 .

[0037] A third bevel gear 20 is meshedly connected to a side of the first bevel gear 5 away from the second bevel gear 6 .

[0038] In this embodiment, a cavity 2 is fixedly connected to the outside of the carbon fiber main board 1. The potential energy regulating component arranged outside the cavity 2 is started through the transmission of the automobile motor. The automobile motor transmits power to the transmission rod 3 through the torsion block 4, and the transmission rod 3 in the potential energy regulating component starts to rotate. When the transmission rod 3 rotates, it drives the first bevel gear 5 fixedly connected to the other side thereof to start rotating. When the first bevel gear 5 rotates, it drives the second bevel gear 6 meshingly connected to its side to rotate. When the second bevel gear 6 rotates, it drives the connecting rod 7 fixedly connected to its side to rotate inside the cavity 2. One end of the connecting rod 7 away from the second bevel gear 6 is fixedly connected to a long plate 8. When the connecting rod 7 rotates, it drives the long plate 8 to start rotating. The long plate 8 starts to rotate in a circle outside the base plate 9. The other end of the base plate 9 is fixedly connected to a convex rod 1 0, the convex rod 10 is arranged inside the diamond groove 12 opened inside the skateboard 11, and the skateboard 11 is slidably connected inside the base plate 9, so that the convex rod 10 starts to slide inside the diamond groove 12. Due to the characteristics of the groove shape of the diamond groove 12 itself, and the shape corresponding to the convex plate 13 fixedly connected inside the diamond groove 12, when the convex rod 10 slides inside the diamond groove 12, it will generate a force to drive the skateboard 11 to move downward. When the skateboard 11 moves downward, it will drive the first spring 17 fixedly connected to the bottom thereof to be compressed. The first spring 17 forms a fixed connection relationship with the base plate 9 through the fixed base 18. At this time, the elastic potential energy of the first spring 17 can be adjusted according to actual conditions, and appropriate prestress is applied to the elastic potential energy of the first spring 17, so that it can maintain the best shock absorption and anti-collision performance in different environments.

[0039] Embodiment 2

[0040] like Figure 1-Figure 6 As shown, based on the first embodiment, a round rod 15 is fixedly connected above the slide plate 11 , and a curved anti-collision plate 16 is fixedly connected to a side of the round rod 15 away from the slide plate 11 .

[0041] A fixed base 18 is fixedly connected to one side of the base plate 9 close to the first spring 17 . The first spring 17 and the fixed base 18 are fixedly connected. A slide bar 19 is slidably connected inside the fixed base 18 . The slide bar 19 and the slide plate 11 are fixedly connected.

[0042] A second spring 21 is fixedly connected to one side of the carbon fiber main board 1 close to the base plate 9 , and the second spring 21 is fixedly connected to the arc-shaped anti-collision plate 16 .

[0043] A third spring 22 is fixedly connected above the cavity 2 , and the third spring 22 is fixedly connected to the arc-shaped anti-collision plate 16 .

[0044] Sensors 23 are evenly distributed above the arc-shaped anti-collision plate 16 .

[0045] A connecting plate 24 is slidably connected to the side of the carbon fiber main board 1 , and the connecting plate 24 is fixedly connected to the arc-shaped anti-collision plate 16 . A mounting plate 25 is arranged below the carbon fiber main board 1 , and a mounting hole 26 is opened inside the mounting plate 25 .

[0046] In this embodiment, when the slide plate 11 moves downward, the slide plate 11 will drive the round rod 15 fixedly connected to the outside thereof to start to descend. When the round rod 15 descends, it drives the arc-shaped anti-collision plate 16 fixedly connected to the other side thereof to start to descend, so that the arc-shaped anti-collision plate 16 drives the second spring 21 and the third spring 22 fixedly connected thereto below to start to descend. The other side of the second spring 21 is fixedly connected to the carbon fiber main board 1, and the other side of the third spring 22 is fixedly connected to the cavity 2, so that the second spring 21 and the third spring 22 are compressed to generate elastic potential energy prestress, and cooperate with the potential energy adjustment component, so that the device has good shock absorption performance. When the slide plate 11 descends, it will drive the slide bar 19 to slide inside the fixed base 18, and the fixed base 18 is fixedly connected to the first spring 17, so that the stability of the first spring 17 is guaranteed when it is compressed. A mounting plate 25 is arranged at the bottom of the carbon fiber main board 1, and the mounting plates 25 are symmetrically arranged on both sides of the carbon fiber main board 1. A plurality of mounting holes 26 are provided inside the mounting plate 25, and the device can be installed on the car through the plurality of mounting holes 26.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight automobile anti-collision beam structure, comprising a carbon fiber main board (1) and a base board (9), characterized in that: The carbon fiber main board (1) is fixedly connected to a cavity (2) on its side, a potential energy adjustment component is arranged inside the cavity (2), and the potential energy adjustment component comprises a transmission rod (3) arranged inside the cavity (2), a first bevel gear (5) is fixedly connected to the transmission rod (3) on a side close to the cavity (2), a second bevel gear (6) is meshingly connected to the side of the first bevel gear (5), a connecting rod (7) is fixedly connected to the side of the second bevel gear (6), a long plate (8) is fixedly connected to the connecting rod (7) on a side away from the second bevel gear (6), a convex rod (10) is fixedly connected to the side of the long plate (8), and the convex rod (10) is close to the cavity (2). A diamond groove (12) is slidably connected to one side of the long plate (8), a slide plate (11) is slidably connected inside the base plate (9), a first spring (17) is fixedly connected below the slide plate (11), the transmission rod (3) drives the second bevel gear (6) to rotate through the first bevel gear (5), the second bevel gear (6) drives the long plate (8) to rotate through the connecting rod (7), the long plate (8) drives the convex rod (10) to slide on the inner wall of the diamond groove (12), and during the sliding process of the diamond groove (12), the slide plate (11) moves downward and compresses the first spring (17) to apply elastic potential energy prestress to absorb energy.

2. A lightweight automobile anti-collision beam structure according to claim 1, characterized in that: The carbon fiber main board (1) is fixedly connected to the cavity (2), the carbon fiber main board (1) is fixedly connected to the base plate (9), the transmission rod (3) is rotationally connected to the cavity (2), a torsion block (4) is fixedly connected to the side of the transmission rod (3) away from the first bevel gear (5), the connecting rod (7) is rotationally connected to the cavity (2), and the long plate (8) is rotationally connected to the base plate (9).

3. A lightweight automobile anti-collision beam structure according to claim 1, characterized in that: The diamond-shaped groove (12) is provided inside the slide plate (11), a convex plate (13) is fixedly connected to the side of the diamond-shaped groove (12), and a limiting groove (14) is provided inside the convex plate (13).

4. The lightweight automobile anti-collision beam structure according to claim 1, characterized in that: A round rod (15) is fixedly connected above the slide plate (11), and a curved anti-collision plate (16) is fixedly connected to a side of the round rod (15) away from the slide plate (11).

5. The lightweight automobile anti-collision beam structure according to claim 1, characterized in that: A fixed base (18) is fixedly connected to one side of the base plate (9) close to the first spring (17); the first spring (17) and the fixed base (18) are fixedly connected; a sliding rod (19) is slidably connected inside the fixed base (18); and the sliding rod (19) is fixedly connected to the slide plate (11).

6. The lightweight automobile anti-collision beam structure according to claim 1, characterized in that: A third bevel gear (20) is meshingly connected to a side of the first bevel gear (5) away from the second bevel gear (6).

7. The lightweight automobile anti-collision beam structure according to claim 4, characterized in that: A second spring (21) is fixedly connected to a side of the carbon fiber main plate (1) close to the base plate (9), and the second spring (21) is fixedly connected to the arc-shaped anti-collision plate (16).

8. The lightweight automobile anti-collision beam structure according to claim 4, characterized in that: A third spring (22) is fixedly connected above the cavity (2), and the third spring (22) is fixedly connected to the arc-shaped anti-collision plate (16).

9. The lightweight automobile anti-collision beam structure according to claim 4, characterized in that: Sensors (23) are evenly distributed above the arc-shaped anti-collision plate (16).

10. The lightweight automobile anti-collision beam structure according to claim 4, characterized in that: A connecting plate (24) is slidably connected to the side of the carbon fiber main board (1), and the connecting plate (24) is fixedly connected to the arc-shaped anti-collision plate (16). A mounting plate (25) is arranged below the carbon fiber main board (1), and a mounting hole (26) is opened inside the mounting plate (25).

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