Automobile front impact beam device with energy-absorbing buffer structure

Abstract

The utility model belongs to the field of automobile front crash cross beam, concretely relates to automobile front crash cross beam device with energy absorption buffer structure, including front crash cross beam, the four corners of front crash cross beam rear side all are fixedly connected with buffer column, the both sides of front crash cross beam rear side all are provided with mounting block, and the mounting block is sleeved on the surface of buffer column, and the rear side of buffer column is fixedly connected with pressure -relief block no.

Description

Technical Field

[0001] This utility model relates to the field of automotive front collision beam technology, specifically an automotive front collision beam device with an energy-absorbing buffer structure. Background Technology

[0002] With the rapid development of the automotive industry and the continuous improvement of road traffic safety awareness, vehicle collision safety performance has become one of the core indicators for measuring vehicle quality. In frontal collision accidents, the front impact beam, as a key load-bearing and protective component at the front of the vehicle, directly affects the transmission path of impact force and energy dissipation during the collision, playing a vital role in protecting the lives of passengers and reducing the degree of damage to the vehicle structure.

[0003] Currently, traditional automotive front impact beams mostly employ a single rigid structure or a simple buffer design, which often fails to efficiently absorb and buffer the impact force during a collision. Although some devices are equipped with buffer components, they suffer from problems such as low energy absorption efficiency and insufficient stability in the buffering process. For example, some buffer structures are prone to component displacement and swaying under stress, resulting in a significant reduction in the buffering effect. At the same time, most devices do not adequately consider the sealing and protection of critical internal components, allowing external dust, moisture, and other impurities to easily penetrate the device, causing component wear or corrosion, affecting its long-term stable working performance, and thus reducing the protective capability of the automotive front impact beam in a collision accident. Utility Model Content

[0004] The purpose of this invention is to provide a front impact beam device for automobiles with an energy-absorbing and buffering structure. This solves the problem that traditional front impact beams for automobiles often use a single rigid structure or a simple buffer design, which often fails to achieve efficient absorption and buffering of impact forces during a collision. Although some devices are equipped with buffer components, they suffer from low energy absorption efficiency and insufficient stability in the buffering process. For example, some buffer structures are prone to component displacement and shaking under stress, resulting in a significant reduction in the buffering effect. At the same time, most devices do not adequately consider the sealing and protection of critical internal components, allowing external dust, moisture, and other impurities to easily penetrate the device, causing component wear or corrosion, affecting its long-term stable working performance, and thus reducing the protective capability of the front impact beam for automobiles in collision accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a car front collision beam device with an energy-absorbing buffer structure, including a front collision beam, buffer posts fixedly connected to the four corners of the rear side of the front collision beam, mounting blocks provided on both sides of the rear side of the front collision beam, the mounting blocks being sleeved on the surface of the buffer posts, a pressure relief block one fixedly connected to the rear side of the buffer posts, the pressure relief block one being located inside the mounting blocks, and a buffer mechanism provided on the rear side of the pressure relief block one.

[0006] Preferably, the buffer mechanism includes a second pressure relief block, which is located on both sides behind the first pressure relief block. A sliding rod is fixedly connected inside the second pressure relief block, and the outer side of the sliding rod extends to the outer side of the mounting block. A spring is sleeved on the surface of the sliding rod, one side of the spring is fixedly connected to the surface of the second pressure relief block, and the other side of the spring is fixedly connected to the inner wall of the mounting block.

[0007] Preferably, the pressure relief block 2 has a round rod inside, and the surface of the round rod is fixedly connected to the inner wall of the mounting block.

[0008] Preferably, the top and bottom of the pressure relief block 2 are fixedly connected to limit sliders, and the surface of the limit sliders is slidably connected to the inner wall of the mounting block.

[0009] Preferably, a sealing ring is fitted on the surface of the buffer column, and the surface of the sealing ring is fixedly connected to the inner wall of the mounting block.

[0010] Preferably, a sealing block is fixedly connected to the outer side of the slide rod, and the sealing block is located at the top and bottom of both sides of the mounting block.

[0011] Preferably, a sealing sleeve is fitted onto the surface of the sealing block, and the surface of the sealing sleeve is fixedly connected to the top and bottom of both sides of the mounting block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model forms a multi-layered energy-absorbing buffer system by adding buffer pillars and other structures to the front collision beam. When a front collision occurs, the impact force can be transmitted sequentially through the front collision beam to the buffer pillars and pressure relief blocks, and then further absorbed and mitigated by the buffer mechanism. This effectively reduces the impact force of the collision on the car body and the occupants, and improves the collision safety of the car. At the same time, the connection method of each component is stable and reliable, ensuring that the buffer structure can function normally during the collision.

[0014] 2. This utility model constructs an efficient elastic buffer structure by adding a pressure relief block II to the mounting block, along with a slide rod fixedly connected inside the pressure relief block II and extending to the outside of the mounting block, and a spring sleeved on the surface of the slide rod. When the pressure relief block I is subjected to an impact force and moves backward, it will squeeze the pressure relief block II, causing the pressure relief block II to slide along the slide rod and compress the spring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the mounting block of this utility model;

[0017] Figure 3 This is a perspective view of the spring of this utility model;

[0018] Figure 4 This is a perspective view of the limiting slider of this utility model.

[0019] In the diagram: 1. Front bumper beam; 2. Buffer column; 3. Mounting block; 4. Pressure relief block one; 51. Pressure relief block two; 52. Slide rod; 53. Spring; 6. Slide rod; 7. Limiting slider; 8. Sealing ring; 9. Sealing block; 10. Sealing sleeve. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 A front collision beam device for automobiles with an energy-absorbing and buffering structure includes a front collision beam 1. Buffer pillars 2 are fixedly connected to the four corners of the rear side of the front collision beam 1. Mounting blocks 3 are provided on both sides of the rear side of the front collision beam 1. The mounting blocks 3 are sleeved on the surface of the buffer pillars 2. A pressure relief block 4 is fixedly connected to the rear side of the buffer pillars 2. The pressure relief block 4 is located inside the mounting blocks 3. A buffering mechanism is provided on the rear side of the pressure relief block 4.

[0022] Please see Figure 1-4 The buffer mechanism includes a second pressure relief block 51, which is located on both sides of the rear side of the first pressure relief block 4. A sliding rod 52 is fixedly connected inside the second pressure relief block 51. The outer side of the sliding rod 52 extends to the outer side of the mounting block 3. A spring 53 is sleeved on the surface of the sliding rod 52. One side of the spring 53 is fixedly connected to the surface of the second pressure relief block 51, and the other side of the spring 53 is fixedly connected to the inner wall of the mounting block 3.

[0023] Furthermore, by setting the spring 53, a large amount of impact force can be converted into elastic potential energy through elastic deformation energy, thus achieving effective absorption of collision energy. In addition, the slide bar 52 plays a good guiding role in the movement of the pressure relief block 51, ensuring the stability and smoothness of the buffering process, and further enhancing the buffering energy absorption effect of the device.

[0024] Please see Figure 1-3 The pressure relief block 2 51 has a round rod 6 inside, and the surface of the round rod 6 is fixedly connected to the inner wall of the mounting block 3.

[0025] Furthermore, through the setting of the round rod 6, the round rod 6 serves as a guide component for the movement of the pressure relief block 51. Its fixed connection with the inner wall of the mounting block 3 ensures that there will be no positional shift or shaking during the sliding process of the pressure relief block 51. This provides stable support and precise movement trajectory for the pressure relief block 51, ensuring the overall reliability of the buffer mechanism and making the buffering energy absorption process more stable and efficient. It also avoids the problem of affecting the buffering effect due to the instability of the guide component.

[0026] Please see Figure 1-4 The top and bottom of the pressure relief block 2 51 are fixedly connected to the limit slider 7, and the surface of the limit slider 7 is slidably connected to the inner wall of the mounting block 3.

[0027] Furthermore, by setting the limit slider 7, the movement of the pressure relief block 51 can be limited, preventing the pressure relief block 51 from shifting up or down or tilting during the sliding along the slide bar 52, ensuring that the pressure relief block 51 always moves stably in the preset direction. This not only ensures that the spring 53 is subjected to uniform force and fully exerts its buffering effect, but also reduces unnecessary friction and collision between the pressure relief block 51 and the inner wall of the mounting block 3, extends the service life of the components, and improves the overall stability of the buffer mechanism.

[0028] Please see Figure 1-2 A sealing ring 8 is fitted on the surface of the buffer column 2, and the surface of the sealing ring 8 is fixedly connected to the inner wall of the mounting block 3.

[0029] Furthermore, the sealing ring 8 effectively prevents external dust, moisture, impurities, etc. from entering the interior of the mounting block 3, avoiding contamination or damage to components such as the pressure relief block 4 and buffer mechanism inside the mounting block 3, thus ensuring the normal working environment of the components. At the same time, the sealing ring 8 can also play a certain sealing and buffering role during the movement of the buffer column 2, reducing direct friction between the buffer column 2 and the mounting block 3, and protecting the surface of the components.

[0030] Please see Figure 1-2 A sealing block 9 is fixedly connected to the outside of the slide rod 52. The sealing block 9 is located at the top and bottom of both sides of the mounting block 3.

[0031] Furthermore, the sealing block 9 prevents external debris from entering the device through the gap between the slide rod 52 and the mounting block 3, protecting key components such as the spring 53 and pressure relief block inside the mounting block 3 from contamination and damage. In addition, the sealing block 9 makes the connection between the slide rod 52 and the mounting block 3 more regular, improving the overall structural integrity of the device.

[0032] Please see Figure 1-2 A sealing sleeve 10 is fitted on the surface of the sealing block 9, and the surface of the sealing sleeve 10 is fixedly connected to the top and bottom of both sides of the mounting block 3.

[0033] Furthermore, the sealing sleeve 10 enhances the sealing protection level of the slide bar 52 through the mounting block 3, effectively preventing dust, moisture, and other substances from corroding the inside of the device. This ensures that components such as the buffer mechanism operate in a clean and dry environment, extends the service life of the device, and guarantees its long-term stable buffering performance.

[0034] The specific implementation process of this utility model is as follows: When the car is in normal driving, the car front collision beam 1 device with energy absorption and buffer structure is in a stable state. The front collision beam 1 is held in the initial position. The buffer column 2 is firmly connected to the four rear corners of the front collision beam 1. The mounting block 3 is sleeved on the surface of the buffer column 2 and the position is fixed. The pressure relief block 4 is located inside the mounting block 3. The pressure relief block 51, slide bar 52, spring 53 and other components in the buffer mechanism are also in the initial state without force. The limiting slider 7 is in the corresponding position on the inner wall of the mounting block 3. The sealing ring 8, sealing block 9 and sealing sleeve 10 ensure the sealing of the device.

[0035] Initial stage of collision: When a car is involved in a frontal collision, the external impact force acts on the front impact beam 1. After being impacted, the front impact beam 1 begins to move backward, causing the buffer column 2, which is fixedly connected to it, to move backward as well.

[0036] Buffering and energy absorption process: When the buffer column 2 moves backward, it pushes the pressure relief block 4 located inside the mounting block 3 to move backward. The backward movement of pressure relief block 4 further compresses pressure relief block 51 in the buffer mechanism, causing pressure relief block 51 to be subjected to a backward force. After being subjected to force, pressure relief block 51 slides backward along the slide rod 52, simultaneously compressing the spring 53 sleeved on the surface of the slide rod 52. The spring 53 begins to compress and deform, converting part of the impact force into elastic potential energy, thus achieving buffering and energy absorption. During this process, the limiting sliders 7 at the top and bottom of pressure relief block 51 slide synchronously on the inner wall of the mounting block 3, ensuring the stability of the movement of pressure relief block 51 and preventing it from shifting.

[0037] Collision end reset: When the impact force of the collision disappears, the compressed spring 53 has the tendency to return to its original state, and will release elastic potential energy, pushing the pressure relief block 2 51 to slide forward along the slide bar 52 back to the initial position. The forward movement of pressure relief block 2 51 drives pressure relief block 4 to move forward, which in turn pushes the buffer column 2 and the front collision beam 1 to move forward as well, and finally the whole device returns to the initial state.

[0038] 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 front collision beam device for automobiles with an energy-absorbing buffer structure, comprising a front collision beam (1), characterized in that: The four corners of the rear side of the front bumper beam (1) are fixedly connected to buffer columns (2). The two sides of the rear side of the front bumper beam (1) are provided with mounting blocks (3). The mounting blocks (3) are sleeved on the surface of the buffer columns (2). The rear side of the buffer columns (2) is fixedly connected to a pressure relief block (4). The pressure relief block (4) is located inside the mounting block (3). The rear side of the pressure relief block (4) is provided with a buffer mechanism.

2. The vehicle front collision beam (1) device with energy-absorbing buffer structure according to claim 1, characterized in that: The buffer mechanism includes a second pressure relief block (51), which is located on both sides behind the first pressure relief block (4). A sliding rod (52) is fixedly connected inside the second pressure relief block (51). The outer side of the sliding rod (52) extends to the outer side of the mounting block (3). A spring (53) is sleeved on the surface of the sliding rod (52). One side of the spring (53) is fixedly connected to the surface of the second pressure relief block (51), and the other side of the spring (53) is fixedly connected to the inner wall of the mounting block (3).

3. The vehicle front collision beam (1) device with energy-absorbing buffer structure according to claim 2, characterized in that: The pressure relief block 2 (51) has a round rod (6) inside, and the surface of the round rod (6) is fixedly connected to the inner wall of the mounting block (3).

4. The vehicle front collision beam (1) device with energy-absorbing buffer structure according to claim 2, characterized in that: The top and bottom of the pressure relief block 2 (51) are fixedly connected to limit sliders (7), and the surface of the limit sliders (7) is slidably connected to the inner wall of the mounting block (3).

5. The vehicle front collision beam (1) device with energy-absorbing buffer structure according to claim 1, characterized in that: The surface of the buffer column (2) is fitted with a sealing ring (8), and the surface of the sealing ring (8) is fixedly connected to the inner wall of the mounting block (3).

6. The vehicle front collision beam (1) device with energy-absorbing buffer structure according to claim 2, characterized in that: A sealing block (9) is fixedly connected to the outside of the slide bar (52), and the sealing block (9) is located at the top and bottom of both sides of the mounting block (3).

7. The vehicle front collision beam (1) device with energy-absorbing buffer structure according to claim 6, characterized in that: The surface of the sealing block (9) is fitted with a sealing sleeve (10), and the surface of the sealing sleeve (10) is fixedly connected to the top and bottom of both sides of the mounting block (3).

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