Metal bumper and automobile

Abstract

The utility model provides a metal bumper and automobile, the metal bumper includes fixed plate and metal bumper bar, fixed plate includes outer daughter board, inner daughter board, outer daughter board includes first middle part and two first edge part, inner daughter board includes second middle part and two second edge part, and punching subassembly is provided between first edge part and second edge part, and the metal bumper bar includes the first daughter board and the second daughter board. The buffer assembly comprises a telescopic rod and an elastic piece arranged on the outer cylindrical surface of the telescopic rod in a sleeving mode, the two ends of the telescopic rod are hinged to the first edge part and the second edge part, a vertical line is formed between the corresponding positions of the first edge part and the second edge part, and the included angle between the telescopic rod and the vertical line is gradually increased from inside to outside. The second edge part comprises a plurality of bent plates which are arranged in an included angle mode, the bent plate close to the second middle part and the second middle part are arranged in an included angle mode, the deflection directions of the bent plates all face the side away from the outer daughter board, and when offset collision occurs, harm of the metal bumper to pedestrians can be reduced to a certain degree.

Description

Technical Field

[0001] This utility model relates to the field of automotive exterior parts technology, and in particular to a metal bumper and an automobile. Background Technology

[0002] In the current technology, in order to ensure the safety of off-road vehicles, metal bumpers are often installed on the front of the vehicle. However, since metal bumpers are mostly made of steel, if they accidentally hit a pedestrian on the road, the damage caused is far greater than that caused by conventional plastic bumpers. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a metal bumper that aims to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A metal bumper includes a fixed plate mounted on the front of an off-road vehicle and a metal anti-collision bar fixed to the fixed plate. The fixed plate includes an outer sub-plate and an inner sub-plate disposed inside the outer sub-plate. The outer sub-plate is made of an elastic-plastic material and includes a first middle portion and two first edge portions disposed at both ends of the first middle portion. The inner sub-plate includes a second middle portion corresponding to the position of the first middle portion and two second edge portions corresponding to the positions of the two first edge portions. A plurality of buffer components are provided between the first edge portions and the second edge portions. The buffer components include a telescopic rod and an elastic element sleeved on the outer cylindrical surface of the telescopic rod. The two ends of the telescopic rod are respectively hinged to the first edge portion and the second edge portion. A perpendicular line exists between corresponding positions of the first edge portion and the second edge portion. The angle between the telescopic rod and the perpendicular line gradually increases from the inside to the outside. The second edge portion is composed of a plurality of bent plates arranged at an angle to each other. The bent plates near the second middle portion are arranged at an angle to the second middle portion. The deflection direction of the plurality of bent plates is towards the side away from the outer sub-plate.

[0006] According to one aspect of the above technical solution, slots are provided at the junction between the bent plate near the second intermediate part and the second intermediate part, as well as at the junction between multiple bent plates.

[0007] According to one aspect of the above technical solution, the area of ​​the plurality of slots gradually increases from the inside to the outside.

[0008] According to one aspect of the above technical solution, the first middle portion and the first edge portion are integrally formed, and both the first middle portion and the first edge portion have a first upper top plate and a first lower top plate. The second middle portion and the second edge portion are integrally formed, and both the second middle portion and the second edge portion have a second upper top plate and a second lower top plate. The first upper top plate and the second upper top plate are fixedly connected by a first bolt, and the first lower top plate and the second lower top plate are fixedly connected by a first bolt.

[0009] According to one aspect of the above technical solution, the first upper roof plate and the first lower roof plate are fixedly connected to the off-road vehicle body by a second bolt.

[0010] According to one aspect of the above technical solution, both the first edge portion and the second edge portion are provided with headlight through holes, which are used to install the high beam headlights of the off-road vehicle.

[0011] According to one aspect of the above technical solution, a mounting block is fixedly provided on the first intermediate part, and the metal anti-collision rod is fixedly connected to the mounting block.

[0012] The present invention also provides an automobile, including the metal bumper described above.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] By setting an outer sub-plate and an inner sub-plate, and placing a buffer assembly between them, and making the second edge of the inner sub-plate composed of multiple bent plates arranged at mutual angles, when a minor offset collision occurs, the first edge will slightly indent due to its elasto-plastic properties. The presence of the telescopic rod and elastic element prevents the first edge from further indenting and provides a buffer force to the impacted object (such as a pedestrian), reducing the distance the pedestrian will continue to move towards the vehicle after the collision, thus reducing the probability of the pedestrian needing a metal bumper. In minor accidents, this can significantly reduce pedestrian injuries. The first edge will then return to its original position due to its own elasticity and the presence of the elastic element, reducing the damage to the metal bumper. When a certain degree of offset collision occurs, the first edge will receive greater pressure, causing it to indent. At this time, the telescopic rod and elastic element cannot completely offset the impact because the angle between the telescopic rod and the vertical line gradually increases from the inside out. This allows the pedestrian to receive greater buffering force from the elastic element closer to the impact point in the first middle section. Because the telescopic bar and elastic element have a greater axial force, and the further away the pedestrian is from the impact point at the first middle section, the less buffering force the elastic element provides. Since the axial force accounts for a smaller proportion, the deformation of the first edge at the impact point is greater. Because the pedestrian's body has a certain width, the closer the pedestrian is to the edge of the vehicle, the greater the displacement of the body due to the greater deformation of the first edge. This allows the pedestrian to rotate slightly to the side upon impact, and be guided by the aforementioned structure to move towards the side of the vehicle, thus acting as a force-dissipating mechanism. This prevents the entire body from hitting the outer panel directly, instead of hitting the metal bumper and being thrown off balance, causing serious injury. Due to the presence of the bending plate, when the impact force reaches a certain level, the telescopic bar can no longer support the force, and the bending plate will bend piece by piece according to the magnitude of the force. This allows the pedestrian to move further along the bending direction of the bending plate upon impact, further converting part of the impact force into rotational force, guiding the pedestrian to move towards the sides of the vehicle, thereby reducing impact injury.

[0015] This invention can reduce the injury to pedestrians caused by metal bumpers in the event of an offset collision. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the metal bumper in the first embodiment of the present invention from a frontal view.

[0017] Figure 2 This is a schematic diagram of the metal bumper in the first embodiment of the present invention from a rear view.

[0018] Figure 3 for Figure 2Exploded view of the structure of the metal bumper;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure at the middle and outer sub-plates;

[0020] Figure 5 for Figure 3 A schematic diagram of the inner sub-plate from a first-view perspective;

[0021] Figure 6 for Figure 5 A partial structural diagram of the bent plate from a first-view perspective;

[0022] Figure 7 for Figure 6 Schematic diagram of the structure at the intermediate buffer component;

[0023] Figure 8 for Figure 5 A partial structural diagram of the bent plate from a second perspective;

[0024] Explanation of key component symbols:

[0025]

[0026]

[0027] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figures 1 to 8 The image shows a metal bumper according to a first embodiment of the present invention, including a fixed plate mounted on the front of an off-road vehicle and a metal anti-collision bar 30 fixed on the fixed plate. The fixed plate includes an outer sub-plate 10 and an inner sub-plate 20 disposed inside the outer sub-plate 10. The outer sub-plate 10 is made of an elastic-plastic material and includes a first middle portion 14 and two first edge portions 16 disposed at both ends of the first middle portion 14. The inner sub-plate 20 includes a second middle portion 21 corresponding to the position of the first middle portion 14 and two second edge portions 24 corresponding to the positions of the two first edge portions 16. A plurality of... The buffer assembly 40 includes a telescopic rod 42 and an elastic element sleeved on the outer cylindrical surface of the telescopic rod 42. The two ends of the telescopic rod 42 are respectively hinged to the first edge portion 16 and the second edge portion 24. A perpendicular line is provided between corresponding positions of the first edge portion 16 and the second edge portion 24. The angle between the telescopic rod 42 and the perpendicular line gradually increases from the inside to the outside. The second edge portion 24 is composed of a plurality of bent plates 241 arranged at an angle to each other. The bent plates 241 near the second middle portion 21 are arranged at an angle to the second middle portion 21. The deflection direction of the plurality of bent plates 241 is all towards the side away from the outer sub-plate 10.

[0032] Understandably, this utility model, by setting an outer sub-plate 10 and an inner sub-plate 20, and providing a buffer assembly 40 between the outer sub-plate 10 and the inner sub-plate 20, and by making the second edge portion 24 of the inner sub-plate 20 composed of multiple bent plates 241 arranged at mutual angles, when a vehicle experiences a slight offset collision, the first edge portion 16 will indent slightly inward due to its elasto-plastic properties. Due to the presence of the telescopic rod 42 and the elastic element, the further indentation of the first edge portion 16 is prevented, and a buffer force is provided to the collided object (such as a pedestrian), reducing the distance the pedestrian continues to displace towards the vehicle due to the collision. This reduces the probability of pedestrians wearing metal bumper bars 30, significantly reducing pedestrian injuries in minor accidents. The first edge portion 16 will return to its original position due to its own elasticity and the presence of the elastic element, thus reducing the damage to the metal bumper. However, in the event of a certain degree of offset collision, the first edge portion 16 will receive significant pressure, causing it to dent. At this point, the telescopic rod 42 and the elastic element cannot completely offset the impact because the angle between the telescopic rod 42 and the vertical line gradually increases from the inside out, allowing the impact point closer to the first middle portion 14 to be further reduced. To achieve greater cushioning force from the elastic element, the telescopic rod 42 and the elastic element experience greater axial force. However, the further away the pedestrian is from the impact point at the first middle section 14, the less cushioning force the elastic element provides, as the axial force accounts for a smaller proportion. Consequently, the deformation of the first edge 16 at the impact point is greater. Since pedestrians have a certain width, the closer the pedestrian is to the vehicle edge, the greater the displacement of the body portion due to the larger deformation of the first edge 16. This allows the pedestrian to rotate slightly laterally upon impact, and be guided by the aforementioned structure to the side facing the vehicle. The movement of the bending plate 241 acts as a force-dissipating mechanism, preventing the entire body from crashing straight into the outer panel 10 and then hitting the metal anti-collision bar 30, which would then throw the person off and cause serious injury. Due to the presence of the bending plate 241, when the impact force reaches a certain level, the telescopic bar 42 can no longer support the force and will bend the bending plate 241 piece by piece according to the magnitude of the force. This allows the pedestrian to move further along the bending direction of the bending plate 241 when impacted, further converting part of the impact force into rotational force and guiding the pedestrian to move towards the sides of the vehicle, thereby reducing the impact injury.

[0033] This invention can reduce the injury to pedestrians caused by metal bumpers in the event of an offset collision.

[0034] It should be noted that the inner sub-plate 20 can be made of metal or plastic. If metal is used, the strength at the joint of multiple bending plates 241 is weakened, for example by laser micro-scraping or local annealing, because the second edge 24 of the inner sub-plate 20 is formed by bending individual bending plates 241. Therefore, it will bend when the pressure reaches a certain level.

[0035] Specifically, in this embodiment, slots 242 are provided at the junction between the bent plate 241 and the second intermediate portion 21 near the second intermediate portion 21, and at the junction between the multiple bent plates 241; the area of ​​the multiple slots 242 gradually increases from the inside to the outside.

[0036] Understandably, because the angle between the telescopic rod 42 and the vertical line (not shown in the figure, but can be imagined as a line segment perpendicular to the first edge 16 and the second edge 24) gradually increases from the inside to the outside, the first middle part 14 is more likely to deform as it moves outward. To accommodate this principle, slots 242 are provided between the bent plates 241 of the second middle part 21 and at the junctions between multiple bent plates 241. The area of ​​the multiple slots 242 gradually increases from the inside to the outside. The larger the slot 242, the easier it is for the bent plates 241 to deform. Therefore, this design structure makes it easier for the bent plates 241 that are further outward to deform, making the overall structure more stable. When a pedestrian touches the first edge 16, they can obtain a smooth turning force.

[0037] Furthermore, the first middle portion 14 and the first edge portion 16 are integrally formed, and both the first middle portion 14 and the first edge portion 16 have a first upper top plate 15 and a first lower top plate 17. The second middle portion 21 and the second edge portion 24 are integrally formed, and both the second middle portion 21 and the second edge portion 24 have a second upper top plate 22 and a second lower top plate 23. The first upper top plate 15 and the second upper top plate 22 are fixedly connected by a first bolt 12, and the first lower top plate 17 and the second lower top plate 23 are fixedly connected by a first bolt 12. The first upper top plate 15 and the first lower top plate 17 are fixedly connected to the off-road vehicle body by a second bolt 13.

[0038] Understandably, the outer sub-plate 10 and the inner sub-plate 20 are fixedly connected by the first bolt 12 (only the first middle part 14 of the outer sub-plate 10 and the second middle part 21 of the inner sub-plate 20 are connected by the first bolt 12; the first edge part 16 of the outer sub-plate 10 and the second edge part 24 of the inner sub-plate 20 do not need to be connected by the first bolt 12 to avoid affecting the bending of the second edge part 24). The outer sub-plate 10 and the inner sub-plate 20 have the same overall shape. In addition to the first upper top plate 15 and the first lower top plate 17, the outer sub-plate 10 also includes an impact plate 18 facing the outside. The impact plate 18 is angled with the first upper top plate 15 and the first lower top plate 17, and the angle is reinforced to ensure the stability of the overall structure. Since the impact plate 18 has a certain height, its centerline position can have a certain deformation capacity. Therefore, the telescopic rod 42 is set in the middle position of the impact plate 18 as much as possible. After connecting the outer sub-panel 10 and the inner sub-panel 20, the outer sub-panel 10 can be fixedly connected to the off-road vehicle body using the second bolt 13.

[0039] It should be noted that the criteria for determining the first edge portion 16 and the first middle portion 14 is the position of the metal anti-collision bar 30. The area of ​​the upward projection of the first edge portion 16 is exactly located at the edge of the metal anti-collision bar 30. The purpose is to give the pedestrian an outward rotational force when the pedestrian hits the first edge portion 16, so as to prevent the pedestrian from hitting the metal anti-collision bar 30.

[0040] Specifically, the telescopic rod 42 is a piston rod, and both ends of the piston rod are provided with hinge plates 44. The first edge portion 16 and the second edge portion 24 are provided with hinge seats 41. The hinge plates 44 and the hinge seats 41 are rotatably connected. Then, the elastic element is a spring 43, and the two ends of the spring 43 are respectively fixed on the hinge plates 44 at both ends.

[0041] Understandably, this design structure allows the hinge seat 41 to move when the impact plate 18 deforms, thereby compressing the telescopic rod 42 and the spring 43 until the deformation is too great and the bending plate 241 bends.

[0042] Furthermore, both the first edge portion 16 and the second edge portion 24 are provided with headlight through holes 11, which are used to install the high beam headlights of the off-road vehicle; a mounting block 21 is fixedly provided on the first middle portion 14, and the metal anti-collision bar 30 is fixedly connected to the mounting block 21.

[0043] Understandably, the headlight through hole 11 is located slightly below the center line of the impact plate 18. The deformation of the impact plate 18 will be slightly affected near the headlight through hole 11. However, since the area of ​​the headlight through hole 11 is not large, it will not affect the deflection of the pedestrian being hit in actual use.

[0044] In summary, the metal bumper in the above embodiments of this utility model can reduce the injury to pedestrians to a certain extent in the event of an offset collision.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A metal bumper, characterized in that, The system includes a mounting plate installed on the front of an off-road vehicle and a metal anti-collision bar fixed to the mounting plate. The mounting plate includes an outer sub-plate and an inner sub-plate disposed inside the outer sub-plate. The outer sub-plate is made of an elastic-plastic material and includes a first middle portion and two first edge portions disposed at both ends of the first middle portion. The inner sub-plate includes a second middle portion corresponding to the position of the first middle portion and two second edge portions corresponding to the positions of the two first edge portions. Multiple buffer components are provided between the first edge portions and the second edge portions. Each buffer component includes a telescopic rod and an elastic element sleeved on the outer cylindrical surface of the telescopic rod. The two ends of the telescopic rod are respectively hinged to the first edge portion and the second edge portion. A perpendicular line exists between corresponding positions of the first edge portion and the second edge portion. The angle between the telescopic rod and the perpendicular line gradually increases from the inside to the outside. The second edge portion is composed of multiple bent plates arranged at an angle to each other. The bent plates near the second middle portion are arranged at an angle to the second middle portion. The deflection direction of the multiple bent plates is all towards the side away from the outer sub-plate.

2. The metal bumper according to claim 1, characterized in that, Grooves are provided at the junction between the bent plate near the second middle part and the second middle part, as well as at the junction between multiple bent plates.

3. The metal bumper according to claim 2, characterized in that, The area of ​​the multiple slots gradually increases from the inside out.

4. The metal bumper according to claim 1, characterized in that, The first middle portion and the first edge portion are integrally formed, and each of the first middle portion and the first edge portion has a first upper top plate and a first lower top plate. The second middle portion and the second edge portion are integrally formed, and each of the second middle portion and the second edge portion has a second upper top plate and a second lower top plate. The first upper top plate and the second upper top plate are fixedly connected by a first bolt, and the first lower top plate and the second lower top plate are fixedly connected by a first bolt.

5. The metal bumper according to claim 4, characterized in that, The first upper roof plate and the first lower roof plate are fixedly connected to the off-road vehicle body by the second bolt.

6. The metal bumper according to claim 1, characterized in that, Both the first edge portion and the second edge portion are provided with headlight through holes, which are used to install the high beam headlights of the off-road vehicle.

7. The metal bumper according to claim 1, characterized in that, An installation block is fixedly provided on the first middle part, and the metal anti-collision rod is fixedly connected to the installation block.

8. A car, characterized in that, The metal bumper includes any one of claims 1 to 7.

Images