Vehicle Anti-collision structure and assembly method therefor

Abstract

A vehicle anti-collision structure, comprising: fixed boxes (1) fixedly mounted at an end portion of a vehicle body; a metal bottom shell (3) connected to the fixed boxes (1); and a rear energy-absorbing layer (9), a plurality of energy-absorbing shields, and a front energy-absorbing layer (21) which are arranged in a stacked manner on the side of the metal bottom shell (3) facing away from the fixed boxes (1), wherein the energy-absorbing shields comprise a first curved energy diminishing shield (10), a second curved energy diminishing shield (12), a protruding energy diminishing shield (14), a recessed energy diminishing shield (15), a third curved energy diminishing shield (17), and a fourth curved energy diminishing shield (19). Further disclosed is an assembly method for the vehicle anti-collision structure. By arranging the rear energy-absorbing layer (9), the plurality of energy-absorbing shields, and the front energy-absorbing layer (21) in a stacked manner on the metal bottom shell (3), collision energy can be absorbed and dispersed in a multi-level diminishing manner upon a collision. The diminishing of the energy is achieved and the propagation of an impact force is blocked, thereby improving the energy absorption efficiency of the overall structure and reducing the damage degree of a vehicle or a pedestrian upon the collision.

Description

A vehicle anti-collision structure and its assembly method Technical Field

[0001] This invention relates to the field of vehicle anti-collision structure technology, specifically to a vehicle anti-collision structure and its assembly method. Background Technology

[0002] With the rapid development of the automotive industry and the continuous increase in the number of cars, the incidence of traffic accidents has also risen. In order to improve vehicle safety performance and reduce the damage to occupants and the vehicle itself in collision accidents, vehicle collision avoidance technology has become an important research direction in automotive design. Technical issues

[0003] Currently, most vehicles are equipped with crash beams at the front and rear ends. Their main function is to absorb and disperse the energy during a collision, preventing the energy from being directly transferred to the vehicle's structure and thus reducing the impact on passengers inside the vehicle. However, traditional crash beams are usually made of metal, have a relatively simple structure, and offer poor impact protection. They can only provide protection against minor and small impacts (20 km / h), and their energy absorption capacity during a collision is limited. Especially in high-intensity collisions, crash beams struggle to fully absorb impact energy, leading to severe damage to pedestrians and the vehicle body.

[0004] Therefore, we propose a vehicle anti-collision structure and its assembly method. Technical solutions

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a vehicle anti-collision structure and its assembly method, which has the advantages of blocking the propagation of impact force and achieving energy reduction.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned objectives of blocking impact propagation and reducing energy, the present invention provides the following technical solution: a vehicle anti-collision structure, comprising:

[0009] The mounting box is fixedly installed at the end of the vehicle body;

[0010] Metal base shell, connected to the fixing box;

[0011] The rear energy-absorbing layer, several energy-absorbing shields, and the front energy-absorbing layer are stacked on the side of the metal bottom shell facing away from the fixed box.

[0012] As a preferred embodiment of the present invention, the fixing box is fixedly installed at the end of the vehicle body by the mounting wings on its side.

[0013] As a preferred embodiment of the present invention, a pin is fixedly installed on the side of the metal base facing the fixing box, and the pin can be inserted into the fixing box.

[0014] As a preferred embodiment of the present invention, an energy-absorbing pad is also fixedly provided at the end of the insertion post.

[0015] As a preferred embodiment of the present invention, the metal bottom shell has a protrusion on the side facing away from the fixing box.

[0016] As a preferred embodiment of the present invention, an energy-absorbing membrane layer is sandwiched between two adjacent energy-absorbing shields.

[0017] As a preferred embodiment of the present invention, the energy-absorbing shield includes a curved energy reduction shield one, a curved energy reduction shield two, a convex energy reduction shield, a concave energy reduction shield, a curved energy reduction shield three, and a curved energy reduction shield four.

[0018] As a preferred embodiment of the present invention, the front end of the front energy-absorbing layer is further provided with a front sponge layer.

[0019] As a preferred embodiment of the present invention, the rear energy-absorbing layer, the plurality of energy-absorbing shields, and the front energy-absorbing layer are all provided with connecting holes on their sides, and connecting rods are inserted into the connecting holes, which are inserted into the side holes opened on the side of the metal bottom shell. Beneficial effects

[0020] Compared with the prior art, the present invention provides a vehicle anti-collision structure with the following beneficial effects:

[0021] 1. The vehicle's anti-collision structure, by stacking a rear energy-absorbing layer, several energy-absorbing shields, and a front energy-absorbing layer on a metal base shell, can absorb and disperse collision energy in multiple layers during a collision, thereby reducing energy and blocking the propagation of impact force, thus improving the overall energy absorption efficiency of the structure and reducing the degree of damage to vehicles or pedestrians during a collision.

[0022] 2. The metal base design of this vehicle's anti-collision structure provides excellent support and stability for the entire structure. At the same time, the plug-in connection between the insert and the fixing box ensures a tight fit between the anti-collision structure and the vehicle, avoiding the risk of the structure loosening or falling off during a collision. In addition, the above design also makes the anti-collision structure easy to disassemble and maintain. If a certain energy-absorbing structure is damaged after a collision, the corresponding part can be replaced individually, reducing maintenance costs.

[0023] 3. The vehicle's anti-collision structure, with its various energy-absorbing shield shapes (such as curved, convex, and concave), helps to effectively absorb impact energy according to different collision scenarios (such as frontal, side, and rear collisions). By combining different energy-absorbing shield shapes, a more flexible energy reduction effect can be achieved, further improving the anti-collision capability of the structure. Attached Figure Description

[0024] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a schematic diagram of the energy-absorbing shield structure of the present invention;

[0026] Figure 3 is an enlarged schematic diagram of the metal bottom shell portion of the present invention;

[0027] Figure 4 is an exploded view of the energy-absorbing shield structure of the present invention;

[0028] Figure 5 is a flowchart of the assembly method of the present invention.

[0029] In the diagram: 1. Fixing box; 2. Mounting wing; 3. Metal base shell; 4. Insert post; 5. Energy-absorbing pad; 6. Protrusion; 7. Side hole; 8. Connecting rod; 9. Rear energy-absorbing layer; 10. Curved energy reduction shield one; 11. Energy-absorbing membrane layer one; 12. Curved energy reduction shield two; 13. Energy-absorbing membrane layer two; 14. Convex energy reduction shield; 15. Concave energy reduction shield; 16. Energy-absorbing membrane layer three; 17. Curved energy reduction shield three; 18. Energy-absorbing membrane layer four; 19. Curved energy reduction shield four; 20. Energy-absorbing membrane layer five; 21. Front energy-absorbing layer; 22. Front sponge layer; 23. Connecting hole. Embodiments of the present invention

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0031] Please refer to Figures 1-4. A vehicle anti-collision structure includes a fixing box 1 fixedly installed at the end of the vehicle body. As shown in Figure 1, the fixing box 1 is fixedly installed at the end of the vehicle body by bolts using the mounting wings 2 on its side, replacing the original anti-collision beam. The aforementioned "vehicle" includes all types of vehicles such as cars, buses, trucks, lorries, high-speed trains, light rail, subways, and trains.

[0032] In this embodiment, a metal bottom shell 3 is also provided, and a pin 4 is fixedly installed on the side facing the fixed box 1. The pin 4 can be inserted into the fixed box 1 to complete the fixation of the metal bottom shell 3, as shown in Figure 1. An energy-absorbing pad 5 is also fixedly provided at the end of the pin 4. When a collision occurs, the energy-absorbing pad 5 can also play a role in absorbing energy and buffering.

[0033] Of course, those skilled in the art can also choose other installation methods. For example, the insert 4 can be fitted onto the fixing box 1 to complete the fixation, or welding, bolt connection, snap-fit, etc. can be used. The appropriate method can be selected according to actual needs.

[0034] As shown in Figure 1, the rear energy-absorbing layer 9, several energy-absorbing shields, and the front energy-absorbing layer 21 are stacked on the side of the metal base shell 3 facing away from the fixed box 1. Specifically, the rear energy-absorbing layer 9, several energy-absorbing shields, and the front energy-absorbing layer 21 are all provided with connecting holes 23 on their sides. Connecting rods 8 are inserted into the connecting holes 23. The connecting rods 8 are inserted into the side holes 7 opened on the side of the metal base shell 3. The connecting rods 8 play the role of "skeleton" and can support the rear energy-absorbing layer 9, several energy-absorbing shields, and the front energy-absorbing layer 21.

[0035] The metal base shell 3 provides good support and stability for the entire anti-collision structure. At the same time, the insertion of the insert post 4 into the fixing box 1 ensures a tight connection between the anti-collision structure and the vehicle, avoiding the risk of the structure loosening or falling off during a collision. In addition, the above design also makes the anti-collision structure easy to disassemble and maintain. If a certain energy-absorbing structure is damaged after a collision, the corresponding part can be replaced individually, reducing maintenance costs.

[0036] In this embodiment, by stacking a rear energy-absorbing layer 9, several energy-absorbing shields, and a front energy-absorbing layer 21 on the metal base shell 3, the collision energy can be absorbed and dispersed in multiple layers when a collision occurs, thereby reducing the energy and blocking the propagation of the impact force, thus improving the energy absorption efficiency of the overall structure and reducing the damage to vehicles or pedestrians during a collision.

[0037] As shown in Figure 4, a front sponge layer 22 can also be provided at the front end of the front energy-absorbing layer 21 to provide additional buffering effect for the collision. When the collision energy is first contacted, the impact force can be further dispersed to protect the vehicle body and the safety of the occupants. The front sponge layer 22 can also be replaced with a similar material.

[0038] As shown in Figure 3, the metal bottom shell 3 has a protrusion 6 on the side facing away from the fixed box 1. When there is a collision, the collapse and deformation of the protrusion 6 can also provide an additional cushioning effect.

[0039] In this embodiment, taking the anti-collision structure installed at the front of the vehicle as an example, as shown in Figure 4, the energy-absorbing shield specifically includes a curved energy-reducing shield one 10, a curved energy-reducing shield two 12, a convex energy-reducing shield 14, a concave energy-reducing shield 15, a curved energy-reducing shield three 17, and a curved energy-reducing shield four 19. An energy-absorbing film layer is also sandwiched between adjacent energy-absorbing shields. Specifically, an energy-absorbing film layer one 11 is sandwiched between curved energy-reducing shield one 10 and curved energy-reducing shield two 12. An energy-absorbing membrane layer 2 13 is sandwiched between shield 2 12 and convex energy-reducing shield 14; an energy-absorbing membrane layer 3 16 is sandwiched between concave energy-reducing shield 15 and curved energy-reducing shield 3 17; an energy-absorbing membrane layer 4 18 is sandwiched between curved energy-reducing shield 3 17 and curved energy-reducing shield 4 19; and an energy-absorbing membrane layer 5 20 is sandwiched between curved energy-reducing shield 4 19 and the front energy-absorbing layer 21. These multiple energy-absorbing membrane layers can rupture and absorb energy when encountering impact force, and the multiple energy-reducing shields can reduce energy.

[0040] The various shapes of energy-absorbing shields (such as curved, convex, and concave shapes) help to effectively absorb impact energy according to different collision scenarios (such as frontal, side, and rear collisions). By combining energy-absorbing shields of different shapes, a more flexible energy reduction effect can be achieved, further improving the collision protection capability of the anti-collision structure.

[0041] If the anti-collision structure is installed at the rear of the vehicle, the curved energy reduction shield 2 12, energy absorption membrane layer 2 13, energy absorption membrane layer 4 18 and curved energy reduction shield 4 19 can be selectively removed, which saves costs while ensuring the anti-rear-end collision effect and anti-collision capability.

[0042] In this embodiment, the front energy-absorbing layer 21 and the rear energy-absorbing layer 9 are composed of multiple layers of polyethylene tape, which can absorb impact force and block propagation; the energy-absorbing layer can be selected from polyethylene tape, polyvinylidene chloride tape or polyvinyl chloride tape, or plastic bags can be used directly to realize waste utilization.

[0043] Energy-absorbing membrane materials can be polyethylene tape, polyvinylidene chloride tape, or polyvinyl chloride tape, or plastic bags can be used directly to achieve waste utilization;

[0044] In this embodiment, a buffer cavity is formed between the curved energy reduction shield and its adjacent energy-absorbing membrane layer, which is spatially separated and can block the propagation of impact energy.

[0045] In this invention, the materials of the curved energy reduction shield, the fixing box 1, the metal bottom shell 3, and the energy-absorbing membrane layer can be aluminum-magnesium alloy or manganese steel alloy, or other metals or carbon fiber can be selected as needed; the connecting rod 8 can be a spring telescopic rod or other form of connecting rod, and the number of connecting rods 8 can be eight, or can be added or reduced as needed.

[0046] Control Experiment 1: After real vehicle testing, if the present invention is not installed, the front bumper will be destroyed and the anti-collision beam will be dented when the vehicle speed is above 20km / h.

[0047] Experiment 1: With this invention installed, at a speed of over 20km / h, the front body shell was slightly scratched, but the parts, hood, and headlights were undamaged.

[0048] Control Experiment 2: After real vehicle testing, if the present invention is not installed, at a vehicle speed of 40km / h or above, the front bumper is destroyed, the anti-collision beam is dented, and the headlights are damaged.

[0049] Experiment 2: At a speed of 40km / h or higher, the front body shell was scratched, but the parts, hood, and headlights were undamaged. Example 2:

[0050] Please refer to Figure 5. Based on Embodiment 1, this embodiment proposes an assembly method for a vehicle anti-collision structure, which specifically includes the following steps:

[0051] S1. Fix the fixing box 1 to the end of the vehicle body;

[0052] S2. Assemble the connecting rod 8 on the metal base shell 3;

[0053] S3. The metal housing 3 is assembled onto the fixed box 1 via the insert 4;

[0054] S4. After stacking and installing the energy-absorbing layer 9, several energy-absorbing shields and the front energy-absorbing layer 21, an energy-absorbing membrane layer is sandwiched between two adjacent energy-absorbing shields as needed.

[0055] If installing on an old car, the original bumper beam needs to be removed; if installing on a new car, it can be installed directly.

[0056] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle anti-collision structure, characterized in that, include: The fixing box (1) is fixedly installed at the end of the vehicle body; The metal base shell (3) is connected to the fixing box (1); The rear energy-absorbing layer (9), several energy-absorbing shields, and the front energy-absorbing layer (21) are stacked on the side of the metal bottom shell (3) facing away from the fixed box (1).

2. The vehicle anti-collision structure according to claim 1, characterized in that: The fixing box (1) is fixedly installed at the end of the vehicle body by the mounting wings (2) on its side.

3. The vehicle anti-collision structure according to claim 1, characterized in that: The metal base shell (3) is fixedly installed with a plug (4) on the side facing the fixed box (1), and the plug (4) can be inserted into the fixed box (1).

4. The vehicle anti-collision structure according to claim 3, characterized in that: An energy-absorbing pad (5) is also fixedly installed at the end of the insertion post (4).

5. A vehicle anti-collision structure according to claim 1, characterized in that: The metal bottom shell (3) has a protrusion (6) on the side facing away from the fixed box (1).

6. A vehicle anti-collision structure according to claim 1, characterized in that: An energy-absorbing membrane layer is sandwiched between two adjacent energy-absorbing shields.

7. A vehicle anti-collision structure according to claim 1 or 6, characterized in that: The energy-absorbing shields include curved energy reduction shield one (10), curved energy reduction shield two (12), convex energy reduction shield (14), concave energy reduction shield (15), curved energy reduction shield three (17), and curved energy reduction shield four (19).

8. A vehicle anti-collision structure according to claim 1, characterized in that: The front end of the front energy-absorbing layer (21) is also provided with a front sponge layer (22).

9. A vehicle anti-collision structure according to claim 1, characterized in that: The rear energy-absorbing layer (9), several energy-absorbing shields, and the front energy-absorbing layer (21) are all provided with connecting holes (23) on their sides. A connecting rod (8) is inserted into the connecting hole (23), and the connecting rod (8) is inserted into the side hole (7) opened on the side of the metal bottom shell (3).

10. A method for assembling a vehicle anti-collision structure, used in a vehicle anti-collision structure as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Fix the fixing box (1) to the end of the vehicle body; S2. Assemble the connecting rod (8) on the metal base shell (3); S3. The metal housing (3) is assembled onto the fixing box (1) by means of the insert (4); S4. Stack the energy-absorbing layer (9), several energy-absorbing shields and the front energy-absorbing layer (21) and sandwich the energy-absorbing membrane layer between two adjacent energy-absorbing shields as needed.

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