Automobile collision energy-absorbing bracket

Abstract

The utility model discloses an automobile collision energy absorption support relates to automobile energy absorption support technical field. Energy absorption crossbeam adopts the hollow pipe, and the front side end of energy absorption crossbeam is provided with energy absorption pad, and the back side end of energy absorption crossbeam is provided with auxiliary energy absorption mechanism no.

Description

Technical Field

[0001] This utility model relates to the field of automotive energy-absorbing bracket technology, and in particular to an automotive collision energy-absorbing bracket. Background Technology

[0002] Vehicle safety is a key indicator that consumers cannot directly perceive. Ordinary users often rely on rating data from third-party crash test organizations (such as C-NCAP and IIHS) to judge vehicle safety performance. However, these test results reflect the overall protection capability of the vehicle, and the energy-absorbing structure at the front of the vehicle, as the first line of defense in a collision, directly affects the survival space and impact buffering effect of the passenger compartment.

[0003] Currently, most automotive front-end support structures still employ simple thin-walled metal tubes or single-layer honeycomb aluminum designs, resulting in low energy absorption efficiency. In high-speed collisions, these structures are prone to fracture rather than orderly deformation, leading to insufficient energy absorption and excessively high peak impact forces, making it difficult to meet increasingly stringent safety standards.

[0004] Therefore, this application proposes a car collision energy-absorbing bracket to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an energy-absorbing bracket for automotive collisions, which solves the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a car collision energy-absorbing bracket, including an energy-absorbing crossbeam, the energy-absorbing crossbeam being a hollow tube, an energy-absorbing pad being provided at the front end of the energy-absorbing crossbeam, an auxiliary energy-absorbing mechanism one and an auxiliary energy-absorbing mechanism two being provided at the rear end of the energy-absorbing crossbeam, a transverse buffer mechanism being provided between the auxiliary energy-absorbing mechanism one and the auxiliary energy-absorbing mechanism two, and a fixing frame one being provided at the rear end of the auxiliary energy-absorbing mechanism two; The auxiliary energy absorption mechanism includes a fixed frame and a movable plate. The fixed frame has an opening at its rear end and limit slides on both its left and right side walls. The movable plate passes through the two limit slides and is fixedly connected to baffles at its left and right ends. Several corrugated plates are fixedly connected to the front end of the movable plate. The front ends of the corrugated plates are fixedly connected to the front inner wall of the fixed frame. The corrugated plates are divided into two groups, and the two groups of corrugated plates are symmetrically arranged in the left and right directions. A pre-bending groove is provided at the folding position of the corrugated plate. The lateral buffer mechanism includes a connecting column and a fixing frame fixed to the rear end of the moving plate.

[0007] Preferably, the auxiliary energy-absorbing mechanism two includes several abutment plates, each with a through hole at its center. All abutment plates are located between the first fixed frame and the fixed frame. A U-shaped auxiliary frame is fixedly connected to the front end of the first fixed frame. A sliding plate is slidably connected to the inner side of the auxiliary frame. Auxiliary plates are fixedly connected to both ends of the sliding plate. The front end of the auxiliary plate is fixedly connected to the rear end of the fixed frame. The upper and lower ends of the auxiliary plate are respectively located in the same plane as the upper and lower ends of the auxiliary frame. Both the auxiliary frame and the auxiliary plate are located within the through hole. Two energy-absorbing plates are provided at the front end of the abutment plate, and these energy-absorbing plates are V-shaped.

[0008] Preferably, the rear end of the abutment plate is provided with two limiting grooves, the front end of the energy-absorbing plate extends into the limiting grooves, the rear end of the last abutment plate abuts against the front end of the first fixing frame, and the rear ends of the fixing frame and the front abutment plates are all fixedly connected with two limiting plates, the two limiting plates are located between the two energy-absorbing plates, and the first fixing frame is U-shaped.

[0009] Preferably, the front sidewall of the fixed frame has a second limiting slide, the rear end of the connecting column passes through the second limiting slide and is fixedly connected to a moving block, the outer sidewall of the moving block abuts against the inner sidewall of the fixed frame, and several buffer springs are fixedly connected to both the left and right ends of the moving block, with the ends of the buffer springs on the left and right sides away from the moving block respectively fixedly connected to the inner walls of the left and right sides of the fixed frame.

[0010] Preferably, one adjacent end of each of the two energy-absorbing plates is fixedly connected to the front end of the abutment plate, and the two energy-absorbing plates are located at opposite ends on the front side of the abutment plate.

[0011] Preferably, both the upper and lower ends of the energy-absorbing crossbeam adopt a V-shaped structure design, and the size of the pre-bending grooves gradually decreases from front to back.

[0012] Compared with related technologies, the automotive collision energy-absorbing bracket provided by this utility model has the following beneficial effects: 1. This utility model provides an automotive collision energy-absorbing bracket, which achieves step-by-step absorption of collision energy through a multi-stage energy-absorbing structure consisting of an energy-absorbing beam, an energy-absorbing pad, an auxiliary energy-absorbing mechanism one, and an auxiliary energy-absorbing mechanism two. The corrugated plate is guided by pre-bending grooves to ensure orderly collapse, preventing breakage and improving energy absorption efficiency.

[0013] 2. This utility model provides an energy-absorbing bracket for automotive collisions. The buffer spring and moving block of the lateral buffer mechanism work together to effectively reduce the peak impact force. The V-shaped energy-absorbing plate and limiting groove design ensure that the energy-absorbing plate is always located within the limiting groove during a collision, preventing the energy-absorbing plate from shifting and affecting the energy absorption effect. Moreover, when the energy-absorbing plate deforms, it not only absorbs energy through its own deformation, but also absorbs energy through the friction between the two energy-absorbing plates at one end moving away from each other and the abutment plate, which greatly improves the energy absorption effect of the device. At the same time, it is used in conjunction with the U-shaped fixing bracket to prepare for the absorption of residual collision energy. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the energy-absorbing frame of this utility model; Figure 3 This is a schematic diagram showing the front end of the second energy-absorbing mechanism of this utility model; Figure 4 This is a schematic diagram of the rear view of the fixing frame of this utility model; Figure 5 This is a three-dimensional cross-sectional structural diagram of the second energy-absorbing mechanism and the transverse buffer mechanism of this utility model; Figure 6 This is a three-dimensional structural diagram of the corrugated plate of this utility model; Figure 7 This is a three-dimensional structural diagram of the third energy-absorbing mechanism of this utility model; Figure 8 This is a partial exploded view of the third energy-absorbing mechanism of this utility model; Figure 9 This is a partial cross-sectional schematic diagram of the third energy-absorbing mechanism of this utility model; Figure 10 This is a schematic diagram of the front end structure of the abutment plate of this utility model; Figure 11 This is a schematic diagram of the rear end structure of the abutment plate of this utility model.

[0015] In the diagram: 1. Energy-absorbing beam; 2. Energy-absorbing pad; 3. Auxiliary energy-absorbing mechanism one; 4. Lateral buffer mechanism; 5. Auxiliary energy-absorbing mechanism two; 6. Fixed frame two; 6a. Fixed frame one; 7. Limiting slide one; 8. Moving plate; 9. Baffle; 10. Corrugated plate; 11. Pre-bending groove; 12. Connecting column; 13. Fixed frame; 14. Limiting slide two; 15. Buffer spring; 16. Auxiliary plate; 17. Auxiliary frame; 18. Sliding plate; 19. Limiting plate; 20. Abutment plate; 21. Through hole; 22. Energy-absorbing plate; 23. Limiting groove; 24. Moving block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and 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 protection scope of the present utility model.

[0017] Please see Figures 1-11 This utility model provides a technical solution: a car collision energy-absorbing bracket, including an energy-absorbing crossbeam 1, the energy-absorbing crossbeam 1 is a hollow tube, an energy-absorbing pad 2 is provided at the front end of the energy-absorbing crossbeam 1, when a collision occurs, the energy-absorbing pad 2 first contacts the collision object and absorbs the impact energy through material deformation, an auxiliary energy-absorbing mechanism 1 3 and an auxiliary energy-absorbing mechanism 2 5 are provided at the rear end of the energy-absorbing crossbeam 1, a transverse buffer mechanism 4 is provided between the auxiliary energy-absorbing mechanism 1 3 and the auxiliary energy-absorbing mechanism 2 5, and a fixing frame 1 6a is provided at the rear end of the auxiliary energy-absorbing mechanism 2 5; The auxiliary energy absorption mechanism 3 includes a fixed frame 6 and a movable plate 8. The fixed frame 6 has an opening at its rear end and limit slides 7 on both its left and right side walls. The movable plate 8 passes through the two limit slides 7 and is fixedly connected to baffles 9 at its left and right ends. Several corrugated plates 10 are fixedly connected to the front end of the movable plate 8. The front end of the corrugated plates 10 is fixedly connected to the front inner wall of the fixed frame 6. The corrugated plates 10 are divided into two groups and are symmetrically arranged in the left and right directions. A pre-bending groove 11 is provided at the folding position of the corrugated plates 10. When the impact force is transmitted to the auxiliary energy absorption mechanism 3, the corrugated plates 10 are squeezed by the movable plate 8 and the fixed frame 6, and the energy absorption operation is achieved through the corrugated plates 10. The auxiliary energy absorption mechanism 25 includes several abutment plates 20. A through hole 21 is provided at the center of the abutment plate 20. The several abutment plates 20 are all located between the fixed frame 1 6a and the fixed frame 13. A U-shaped auxiliary frame 17 is fixedly connected to the front end of the fixed frame 1 6a. A sliding plate 18 is slidably connected to the inner side of the auxiliary frame 17. Auxiliary plates 16 are fixedly connected to both the left and right ends of the sliding plate 18. The front end of the auxiliary plate 16 is fixedly connected to the rear end of the fixed frame 13. The upper and lower ends of the auxiliary plate 16 are respectively located in the same plane as the upper and lower ends of the auxiliary frame 17. The auxiliary frame 17 and the auxiliary plate 16 are both located in the through hole 21. Two energy absorption plates 22 are provided at the front end of the abutment plate 20. The energy absorption plates 22 are V-shaped. The rear end of the abutment plate 20 is provided with two limiting grooves 23. The front end of the energy-absorbing plate 22 extends into the limiting grooves 23. The rear end of the last abutment plate 20 abuts against the front end of the fixing frame 6a. The rear ends of the fixing frame 13 and several front abutment plates 20 are all fixedly connected to two limiting plates 19. The two limiting plates 19 are located between the two energy-absorbing plates 22. The fixing frame 6a is U-shaped. When in use, the fixing frame 6a is connected to the workshop. The U-shaped fixing frame 6a also plays an energy-absorbing role. The lateral buffer mechanism 4 includes a connecting column 12 and a fixed frame 13 fixed to the rear end of the movable plate 8. A second limiting slide 14 is provided on the front side wall of the fixed frame 13. The rear end of the connecting column 12 passes through the second limiting slide 14 and is fixedly connected to a movable block 24. The outer side wall of the movable block 24 abuts against the inner side wall of the fixed frame 13. Several buffer springs 15 are fixedly connected to both ends of the movable block 24. The ends of the buffer springs 15 on the left and right sides away from the movable block 24 are fixedly connected to the inner walls of the left and right sides of the fixed frame 13, respectively. The lateral buffer mechanism 4 enables the device to buffer the force in the left and right directions and absorb energy through spring deformation. The adjacent ends of the two energy-absorbing plates 22 are fixedly connected to the front end of the abutment plate 20. The two energy-absorbing plates 22 are located at the front side of the abutment plate 20 at the ends that are far apart from each other, so as to ensure that when the energy-absorbing plates 22 deform and absorb energy, the two energy-absorbing plates 22 absorb energy through friction with the side wall of the abutment plate 20 at the ends that are far apart from each other. Both ends of the energy-absorbing beam 1 adopt a V-shaped structure design. The V-shaped end face design guides the deformation direction of the energy-absorbing beam 1 and absorbs energy through deformation. The size of several pre-bending grooves 11 gradually decreases from front to back. The corrugated plate 10 is guided to collapse in an orderly manner through the pre-bending grooves 11 to avoid breakage and improve energy absorption efficiency.

[0018] Working principle: During use, the device is placed on the vehicle frame via the fixing frame 6a. Upon collision, the energy-absorbing pad 2 first contacts the impacting object, absorbing impact energy through material deformation. The hollow tubular energy-absorbing beam 1, with its V-shaped end face design, guides the deformation direction of the beam, absorbing energy through deformation. When the impact force is transmitted to the auxiliary energy-absorbing mechanism 3, the corrugated plate 10 is compressed by the moving plate 8 and the fixing frame 6, achieving energy absorption. The corrugated plate 10 is guided by pre-bending grooves 11 to ensure orderly collapse, preventing breakage and improving energy absorption efficiency. After passing through the transverse buffer mechanism 4, the energy is transferred to the auxiliary energy-absorbing mechanism 5, where the V-shaped... The design of the energy-absorbing plate 22 and the limiting groove 23 ensures that the energy-absorbing plate 22 is always located within the limiting groove 23 during a collision, preventing the energy-absorbing plate 22 from shifting and affecting the energy absorption effect. When the energy-absorbing plate 22 deforms, it not only absorbs energy through its own deformation, but also absorbs energy through the friction between the two energy-absorbing plates 22 and the abutment plate 20 as the energy-absorbing plate 22 deforms away from each other, greatly improving the energy absorption effect of the device. The setting of the limiting plate 19 controls the deformation direction of the energy-absorbing plate 22, ensuring that the two energy-absorbing plates 22 can deform in a direction away from each other; at the same time, it works with the U-shaped fixing frame 6a to prepare for the absorption of residual collision energy.

[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 car collision energy-absorbing bracket, comprising an energy-absorbing crossbeam (1), characterized in that: The energy-absorbing beam (1) is made of hollow tube. An energy-absorbing pad (2) is provided at the front end of the energy-absorbing beam (1). An auxiliary energy-absorbing mechanism one (3) and an auxiliary energy-absorbing mechanism two (5) are provided at the rear end of the energy-absorbing beam (1). A transverse buffer mechanism (4) is provided between the auxiliary energy-absorbing mechanism one (3) and the auxiliary energy-absorbing mechanism two (5). A fixing frame one (6a) is provided at the rear end of the auxiliary energy-absorbing mechanism two (5). The auxiliary energy absorption mechanism (3) includes a fixed frame (6) and a movable plate (8). The fixed frame (6) has an opening at the rear end and a limit slide (7) is provided on both the left and right side walls. The left and right ends of the movable plate (8) pass through the two limit slides (7) and are fixedly connected to baffles (9). The front end of the movable plate (8) is fixedly connected to several corrugated plates (10). The front end of the corrugated plates (10) is fixedly connected to the front inner wall of the fixed frame (6). The several corrugated plates (10) are divided into two groups. The two groups of corrugated plates (10) are symmetrically arranged in the left and right directions. A pre-bending groove (11) is provided at the folding position of the corrugated plate (10). The lateral buffer mechanism (4) includes a connecting column (12) and a fixing frame (13) fixed to the rear end of the movable plate (8).

2. The automotive collision energy-absorbing bracket according to claim 1, characterized in that: The auxiliary energy absorption mechanism 2 (5) includes several abutment plates (20). A through hole (21) is provided at the center of the abutment plate (20). Several abutment plates (20) are located between the fixed frame 1 (6a) and the fixed frame (13). A U-shaped auxiliary frame (17) is fixedly connected to the front end of the fixed frame 1 (6a). A sliding plate (18) is slidably connected to the inner side of the auxiliary frame (17). Auxiliary plates (16) are fixedly connected to both the left and right ends of the sliding plate (18). The front end of the auxiliary plate (16) is fixedly connected to the rear end of the fixed frame (13). The upper and lower ends of the auxiliary plate (16) are respectively located in the same plane as the upper and lower ends of the auxiliary frame (17). The auxiliary frame (17) and the auxiliary plate (16) are both located in the through hole (21). Two energy absorption plates (22) are provided at the front end of the abutment plate (20). The energy absorption plates (22) are V-shaped.

3. The automotive collision energy-absorbing bracket according to claim 2, characterized in that: The rear end of the abutment plate (20) is provided with two limiting grooves (23). The front end of the energy-absorbing plate (22) extends into the limiting grooves (23). The rear end of the last abutment plate (20) abuts against the front end of the first fixing frame (6a). The rear ends of the fixing frame (13) and several front abutment plates (20) are all fixedly connected with two limiting plates (19). The two limiting plates (19) are located between the two energy-absorbing plates (22). The first fixing frame (6a) is U-shaped.

4. The automotive collision energy-absorbing bracket according to claim 1, characterized in that: The front side wall of the fixed frame (13) is provided with a limiting slide rail (14). The rear end of the connecting column (12) passes through the limiting slide rail (14) and is fixedly connected to a moving block (24). The outer side wall of the moving block (24) abuts against the inner side wall of the fixed frame (13). Several buffer springs (15) are fixedly connected to both the left and right ends of the moving block (24). The ends of the buffer springs (15) on the left and right sides away from the moving block (24) are fixedly connected to the inner walls of the left and right sides of the fixed frame (13).

5. The automotive collision energy-absorbing bracket according to claim 2, characterized in that: The adjacent ends of the two energy-absorbing plates (22) are fixedly connected to the front end of the abutment plate (20), and the two energy-absorbing plates (22) are located at opposite ends in front of the abutment plate (20).

6. The automotive collision energy-absorbing bracket according to claim 1, characterized in that: The energy-absorbing crossbeam (1) adopts a V-shaped structure design at both its upper and lower ends, and the size of several pre-bending grooves (11) gradually decreases from front to back.

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