Lightweight front anti-collision beam for passenger car

Abstract

This utility model discloses a lightweight front anti-collision beam for buses, specifically relating to the field of front anti-collision beam technology. It includes a crossbeam with a cavity inside. A first energy-absorbing block is fixedly installed inside the cavity. An energy-absorbing assembly is fixedly installed on the rear surface of the crossbeam. The energy-absorbing assembly includes multiple energy-absorbing boxes arranged in a linear array. The front end of each energy-absorbing box is fixed to the rear end of the crossbeam, and a second energy-absorbing block is installed inside each energy-absorbing box. This utility model consists of a hollow crossbeam and multiple energy-absorbing boxes. The crossbeam and energy-absorbing boxes are made of aluminum alloy, which effectively reduces the overall weight of the anti-collision beam and improves its energy absorption and anti-collision performance. Simultaneously, the first and second energy-absorbing blocks are made of cushioning material, further enhancing the energy absorption effect without excessively increasing the weight, ensuring the lightweight nature of the anti-collision beam. This anti-collision beam can be recycled and reused after damage, reducing waste generation and improving environmental performance.

Description

Technical Field

[0001] This utility model relates to the field of front bumper beam technology, and more specifically to a lightweight front bumper beam for buses. Background Technology

[0002] A front bumper beam is a device used to absorb collision energy when a vehicle is involved in a collision. When a collision occurs, the front bumper beam acts as the first line of defense, absorbing and dispersing a large amount of impact energy, reducing the impact on the bus body and the occupants. Furthermore, the front bumper beam can also reasonably transmit the impact force to the rear connection parts, allowing the longitudinal beams and passenger compartment to bear the main force, so that the entire vehicle structure participates in the energy absorption and force transmission process, avoiding excessive local stress.

[0003] For example, a front bumper beam for a large bus, disclosed in the prior art (CN208745949U), features a groove, a rain shield, and a locking block. The locking block engages with the groove, facilitating the fixing of the rain shield above the bumper beam. The rain shield protects the bumper beam from rain, preventing it from rusting due to prolonged exposure to rain and thus addressing the problem of corrosion affecting its performance.

[0004] However, the existing technology described above still has the following problems in use: Traditional bus front bumper beams usually use solid crossbeams, which are placed in conjunction with energy-absorbing boxes to absorb energy. The energy absorption and collision protection effect is low. At the same time, it also increases the overall weight of the bumper beam and the energy consumption of the bus, and aggravates the environmental impact of bus exhaust. Based on this, this utility model provides a lightweight bus front bumper beam. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a lightweight front anti-collision beam for buses, consisting of a hollow crossbeam and multiple energy-absorbing boxes. The crossbeam and energy-absorbing boxes are made of aluminum alloy, which can effectively reduce the overall weight of the anti-collision beam and improve its energy absorption and anti-collision performance. At the same time, the first and second energy-absorbing blocks are made of cushioning material, which further enhances the energy absorption effect without excessively increasing the weight, ensuring the lightweight nature of the anti-collision beam. The anti-collision beam can be recycled and reused after damage, reducing waste generation and improving environmental performance, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lightweight front anti-collision beam for a passenger vehicle, comprising a crossbeam, wherein a cavity is provided inside the crossbeam, a first energy-absorbing block is fixedly provided inside the cavity, and an energy-absorbing component is fixedly provided on the rear end surface of the crossbeam, wherein the energy-absorbing component comprises a plurality of energy-absorbing boxes arranged in a linear array, the front end of each energy-absorbing box being fixed together with the rear end of the crossbeam, and a second energy-absorbing block being provided inside each energy-absorbing box.

[0007] In a preferred embodiment, a sealing cover is provided on both sides of the cavity, and a rubber sealing block is fixedly provided on the side of each sealing cover near the crossbeam. The rubber sealing block abuts against the inner wall of the cavity, and the outer wall of the rubber sealing block is processed with anti-slip texture. The anti-slip texture abuts against the inner wall of the cavity, which is used to make the rubber sealing block tightly connected to the inner wall of the cavity, thereby improving the sealing performance.

[0008] In a preferred embodiment, multiple locking rods arranged in a linear array are fixed on the surface of both sealing covers near the crossbeam. The sealing covers are engaged with the crossbeam by the locking rods, and the sealing covers are fixed by the locking method, which facilitates the subsequent disassembly of the sealing covers and replacement of the first energy-absorbing block in the cavity.

[0009] In a preferred embodiment, each lever includes a lever body and a lever head. The outer walls on both sides of the crossbeam are machined with the same number of locking holes as the levers. The locking holes include straight arm holes and spherical holes. The lever body is disposed in the straight arm hole and the lever head is disposed in the spherical hole, which is used to improve the firmness between the sealing cap and the crossbeam.

[0010] In a preferred embodiment, both the outer wall of the second energy-absorbing block and the inner wall of the energy-absorbing box are machined with connecting grooves to improve the firmness between the second energy-absorbing block and the energy-absorbing box.

[0011] In a preferred embodiment, each energy-absorbing box has multiple evenly distributed connection holes on its outer wall for connecting the energy-absorbing box to the bus body.

[0012] In a preferred embodiment, the crossbeam, sealing cover, and energy-absorbing box are all made of aluminum alloy, and the first and second energy-absorbing blocks are both made of cushioning material.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This utility model constructs a front anti-collision beam for buses by using a hollow crossbeam and multiple energy-absorbing boxes. The crossbeam and energy-absorbing boxes made of aluminum alloy are lightweight and high-strength, which can effectively reduce the weight of the front anti-collision beam and improve its energy absorption and anti-collision performance. The first and second energy-absorbing blocks made of buffer material can further improve the energy absorption and anti-collision performance without excessively increasing the weight of the anti-collision beam, thus keeping the front anti-collision beam lightweight.

[0015] In addition, the entire front bumper beam can be recycled and reused after damage, which can effectively reduce waste generation and make it more environmentally friendly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the overall structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the beam of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of part A in the image;

[0020] Figure 5 This is a schematic diagram of the energy-absorbing box and the second energy-absorbing block of this utility model.

[0021] The attached figures are labeled as follows: 1. Crossbeam; 2. Cavity; 3. First energy-absorbing block; 4. Energy-absorbing assembly; 5. Sealing cover; 6. Rubber sealing block; 7. Anti-slip texture; 8. Locking rod; 9. Locking hole; 10. Connecting groove; 11. Connecting hole;

[0022] Energy-absorbing box; 42. Second energy-absorbing block;

[0023] Shaft; 82; Club head;

[0024] 91. Straight arm hole; 92. Spherical hole. Detailed Implementation

[0025] 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.

[0026] Refer to the instruction manual appendix Figures 1-5 This utility model provides a lightweight front anti-collision beam for a bus, including a crossbeam 1. The crossbeam 1 has a cavity 2 inside, and a first energy-absorbing block 3 is fixedly installed inside the cavity 2. An energy-absorbing component 4 is fixedly installed on the rear end surface of the crossbeam 1. The energy-absorbing component 4 includes a plurality of energy-absorbing boxes 41 arranged in a linear array. The front end of each energy-absorbing box 41 is fixed to the rear end of the crossbeam 1, and a second energy-absorbing block 42 is installed inside each energy-absorbing box 41.

[0027] Next, connecting grooves 10 are machined on the outer wall of the second energy-absorbing block 42 and the inner wall of the energy-absorbing box 41 to improve the firmness between the second energy-absorbing block 42 and the energy-absorbing box 41. Multiple evenly distributed connecting holes 11 are machined on the outer wall of each energy-absorbing box 41 to connect the energy-absorbing box 41 to the bus body.

[0028] The crossbeam 1, sealing cover 5 and energy-absorbing box 41 are all made of aluminum alloy, and the first energy-absorbing block 3 and the second energy-absorbing block 42 are both made of cushioning material.

[0029] In practical use, the crossbeam 1 and multiple energy-absorbing boxes 41 form a crash beam. The crossbeam 1 is hollow, and a first energy-absorbing block 3 is placed in the cavity 2. The first energy-absorbing block 3 can play a buffering and energy-absorbing role. At the same time, the design of multiple hollow energy-absorbing boxes 41 and the second energy-absorbing block 42 inside them can improve the buffering and energy-absorbing effect while reducing the weight, thereby achieving the lightweighting of the front crash beam of the bus. In addition, the crossbeam 1, sealing cover 5 and energy-absorbing box 41 are made of aluminum alloy. Aluminum alloy has the characteristics of low density and high specific strength, which can effectively reduce the weight of the front crash beam while ensuring a certain strength and impact resistance. Aluminum alloy also has good corrosion resistance, which can extend the service life of the front crash beam and reduce the replacement frequency.

[0030] The first energy-absorbing block 3 and the second energy-absorbing block 42 are made of buffer materials, such as existing carbon fiber materials. Carbon fiber has extremely high specific strength and specific modulus, is lightweight and strong, and can significantly reduce the weight of the front anti-collision beam of the bus. At the same time, the material has good fatigue resistance and energy absorption characteristics, and can effectively absorb energy during a collision, improving the safety performance of the bus. Moreover, both aluminum alloy materials and carbon fiber materials can be recycled and reused, which can effectively reduce the generation of waste and make them more environmentally friendly.

[0031] Refer to the instruction manual appendix Figures 1-5 Both sides of the cavity 2 are provided with sealing caps 5. Both sealing caps 5 are fixed with rubber sealing blocks 6 on the side near the crossbeam 1. The outer wall of the rubber sealing block 6 is processed with anti-slip texture 7. The rubber sealing block 6 and the anti-slip texture 7 abut against the inner wall of the cavity 2, which can improve the sealing performance. Both sealing caps 5 are fixed with multiple clamping rods 8 arranged in a linear array on the surface of the side near the crossbeam 1. The sealing cap 5 is clamped to the crossbeam 1 through the clamping rods 8.

[0032] Specifically, each lever 8 includes a lever body 81 and a lever head 82. The outer walls on both sides of the crossbeam 1 are machined with the same number of locking holes 9 as the lever 8. The locking holes 9 include straight arm holes 91 and spherical holes 92. The lever body 81 is located in the straight arm hole 91 and the lever head 82 is located in the spherical hole 92, which is used to improve the firmness between the sealing cover 5 and the crossbeam 1.

[0033] The openings on both sides of the cavity 2 are sealed by the sealing cover 5 and the rubber sealing block 6. The anti-slip texture 7 on the rubber sealing block 6 makes its surface uneven, which can make the rubber sealing block 6 and the cavity 2 more tightly connected, thereby improving the sealing effect and preventing air and moisture from entering the cavity 2 and increasing the weight of the crossbeam 1. The sealing cover 5 is fixed by snap-fit, which is convenient for subsequent disassembly of the sealing cover 5 to adjust and replace the first energy-absorbing block 3 in the cavity 2. Moreover, the sealing cover 5 is also made of aluminum alloy, which can be recycled and reused after disposal, thus improving environmental protection.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight front anti-collision beam for a passenger vehicle, comprising a crossbeam (1), characterized in that: The crossbeam (1) has a cavity (2) inside, and a first energy-absorbing block (3) is fixedly installed inside the cavity (2). The rear end surface of the crossbeam (1) is fixedly provided with an energy absorption component (4). The energy absorption component (4) includes multiple energy absorption boxes (41) arranged in a linear array. The front end of each energy absorption box (41) is fixed together with the rear end of the crossbeam (1). Each energy absorption box (41) is provided with a second energy absorption block (42) inside.

2. The lightweight front anti-collision beam for a passenger vehicle according to claim 1, characterized in that: Both sides of the cavity (2) are provided with sealing caps (5). Both sealing caps (5) are fixed with rubber sealing blocks (6) on the side near the crossbeam (1). The rubber sealing blocks (6) abut against the inner wall of the cavity (2). The outer wall of the rubber sealing blocks (6) is processed with anti-slip textures (7). The anti-slip textures (7) abut against the inner wall of the cavity (2).

3. A lightweight front anti-collision beam for a passenger vehicle according to claim 2, characterized in that: Both sealing caps (5) are fixed with multiple clamps (8) arranged in a linear array on the surface of the side of the crossbeam (1), and the sealing caps (5) are clamped to the crossbeam (1) by the clamps (8).

4. A lightweight front anti-collision beam for a passenger vehicle according to claim 3, characterized in that: Each lever (8) includes a lever body (81) and a lever head (82). The outer walls on both sides of the crossbeam (1) are machined with the same number of locking holes (9) as the lever (8). The locking holes (9) include straight arm holes (91) and spherical holes (92). The lever body (81) is located in the straight arm hole (91) and the lever head (82) is located in the spherical hole (92) to improve the firmness between the sealing cap (5) and the crossbeam (1).

5. A lightweight front anti-collision beam for a passenger vehicle according to claim 1, characterized in that: The outer wall of the second energy-absorbing block (42) and the inner wall of the energy-absorbing box (41) are both machined with connecting grooves (10) to improve the firmness between the second energy-absorbing block (42) and the energy-absorbing box (41).

6. A lightweight front bumper beam for a passenger vehicle according to claim 1, characterized in that: Each energy-absorbing box (41) has multiple evenly distributed connection holes (11) machined on its outer wall.

7. A lightweight front anti-collision beam for a passenger vehicle according to claim 2, characterized in that: The crossbeam (1), sealing cover (5) and energy-absorbing box (41) are all made of aluminum alloy, and the first energy-absorbing block (3) and the second energy-absorbing block (42) are both made of cushioning material.

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