A buffer and anti-collision device combining a composite material and an aluminum honeycomb

Abstract

This invention proposes a buffer and anti-collision device combining composite materials and aluminum honeycomb, belonging to the field of passive safety protection. This device addresses the difficulty of existing buffer and energy-absorbing devices in applying them in different scenarios. It comprises a first energy-absorbing zone, a second energy-absorbing zone, and a main energy-absorbing zone, arranged in sequence from the outside to the inside. Both the first and second energy-absorbing zones include a cover and multiple curved plates, each of which is arranged inside the cover. The first energy-absorbing zone is made of metal, the second energy-absorbing zone is made of composite materials, and the main energy-absorbing zone has a honeycomb structure. It is primarily used for passive safety protection.

Description

Technical Field

[0001] The invention belongs to the field of passive safety protection, and in particular relates to a buffer and anti-collision device combining a composite material and an aluminum honeycomb. Background Art

[0002] Currently, to protect pedestrians, crash bollards are installed on road safety islands, sidewalks, and bus bays. To protect vehicles, they employ advanced AI active control systems and passive safety collision buffers, which absorb impact forces through deformation to protect occupants. To protect road vehicles, crash barriers and water buckets are often installed along dangerous roads as energy-absorbing buffers. To mitigate the risk of collisions between ships and bridges at sea, buffering materials are added to bridge columns. Therefore, in the field of collision and energy absorption, the requirements and functions of appropriate energy-absorbing devices vary depending on their application. Currently, there is an urgent need for a collision-absorbing device that provides both flexible cushioning and high energy-absorbing capacity. Summary of the Invention

[0003] In view of this, the present invention aims to propose a buffer and anti-collision device combining a composite material and an aluminum honeycomb, so as to solve the problem that existing buffer and energy-absorbing devices are difficult to apply in different scenarios.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a buffer and anti-collision device combining a composite material and an aluminum honeycomb, which includes a first energy absorption zone, a second energy absorption zone and a main energy absorption zone arranged in sequence from the outside to the inside, the first energy absorption zone and the second energy absorption zone both include a cover body and a plurality of curved plates, the plurality of curved plates are arranged on the inner side of the cover body, the first energy absorption zone is made of metal material, the second energy absorption zone is made of composite material, and the main energy absorption zone is a honeycomb structure.

[0005] Furthermore, the first energy absorbing zone includes a metal cover and a plurality of metal arc plates, and the plurality of metal arc plates are uniformly distributed on the inner side of the metal cover.

[0006] Furthermore, the number of the metal arc plates is 7.

[0007] Furthermore, the metal cover and the metal arc plate are connected by welding.

[0008] Furthermore, the second energy absorbing zone includes a composite material cover and a plurality of composite material curved plates, and the plurality of composite material curved plates are distributed inside the composite material cover.

[0009] Furthermore, the number of the composite material curved plates is 6.

[0010] Furthermore, the main energy absorbing zone includes an aluminum honeycomb mounting cylinder and an energy absorbing aluminum honeycomb block, and the energy absorbing aluminum honeycomb block is mounted in the aluminum honeycomb mounting cylinder.

[0011] Furthermore, a positioning and installation mechanism is installed at the center of the energy-absorbing aluminum honeycomb block.

[0012] Furthermore, the positioning and mounting mechanism is an aluminum honeycomb inner hole mounting rod, a circular hole is opened in the center of the energy-absorbing aluminum honeycomb block, and the aluminum honeycomb inner hole mounting rod is mounted in the circular hole.

[0013] Furthermore, there are gaps between the first energy absorbing area, the second energy absorbing area and the main energy absorbing area.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention can achieve the function of not needing to replace parts when subjected to a small impact force, and can absorb a large impact energy when subjected to a large impact load, achieving the function of efficient buffering and collision prevention, with a simple structure and easy installation.

[0015] The present invention absorbs the external impact load received by the buffer device in a reasonable and hierarchical manner through multi-stage buffering energy-absorbing areas, and the maximum deformation impact force that can be tolerated at each stage increases gradually from the outside to the inside. When the external impact force is small, the outer metal material cover body can buffer most of the impact force through its own deformation. When the external impact force is greater than the deformation energy of the metal cover body and the curved plate, the metal cover body and the curved plate of the composite material begin to deform and absorb energy. Finally, the aluminum honeycomb block part in the center of the device absorbs most of the impact energy through its own large deformation and crushing, which can complete the hierarchical absorption of impact energy and avoid excessively rigid deformation absorption capacity. It can also be understood as a flexible buffering deformation energy absorption process. This device is more reasonable and safe, and can absorb the impact energy more reasonably to the maximum extent, so that the safety protection of personnel and equipment is guaranteed to a greater extent. It has a simple structure and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a buffer and anti-collision device combining a composite material and an aluminum honeycomb according to the present invention;

[0018] Figure 2 This is a schematic diagram of the top view of the structure of a buffer and anti-collision device combining a composite material and an aluminum honeycomb according to the present invention;

[0019] Figure 3 This is a schematic side structural diagram of a buffer and anti-collision device combining a composite material and an aluminum honeycomb according to the present invention.

[0020] 1-metal cover, 2-metal arc plate, 3-composite material cover, 4-composite material arc plate, 5-aluminum honeycomb mounting cylinder, 6-energy-absorbing aluminum honeycomb block, 7-aluminum honeycomb inner hole mounting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features therein can be combined with each other in the absence of conflict, and the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.

[0022] See also Figure 1-3 To describe this embodiment, a buffer and anti-collision device combining a composite material and an aluminum honeycomb includes a first energy absorption zone, a second energy absorption zone and a main energy absorption zone arranged in sequence from the outside to the inside. The first energy absorption zone and the second energy absorption zone both include a cover body and a plurality of curved plates. The plurality of curved plates are arranged on the inner side of the cover body. The first energy absorption zone is made of metal, the second energy absorption zone is made of composite material, and the main energy absorption zone is a honeycomb structure.

[0023] During use, the first energy-absorbing zone of the metal material first absorbs the impact energy. If the first energy-absorbing zone of the metal material can offset the external load, the force will not continue to be transmitted internally, and the energy absorption will be completed through the first energy-absorbing zone of the metal material; if the impact energy is large, the energy cannot be completely absorbed by the first energy-absorbing zone of the metal material, and the impact force will continue to be transmitted to the second energy-absorbing zone of the composite material. If the second energy-absorbing zone of the composite material can offset the remaining load, the force will not continue to be transmitted internally, and the energy absorption will be completed through the second energy-absorbing zone of the composite material; when the second energy-absorbing zone of the composite material cannot eliminate the load buffering, it will act locally on the main energy-absorbing zone in the central area, relying on the honeycomb structure to absorb energy, thereby achieving the function of buffering and collision prevention.

[0024] In the embodiment, the first energy absorption zone includes a metal material cover body 1 and 7 metal curved plates 2, the 7 metal curved plates 2 are evenly distributed on the inner side of the metal material cover body 1, and the metal material cover body 1 and the metal curved plates 2 are connected by welding. The second energy absorption zone includes a composite material cover body 3 and 6 composite material curved plates 4, the 6 composite material curved plates 4 are evenly distributed on the inner side of the composite material cover body 3. The main energy absorption zone includes an aluminum honeycomb mounting cylinder 5 and an energy-absorbing aluminum honeycomb block 6, the energy-absorbing aluminum honeycomb block 6 is installed in the aluminum honeycomb mounting cylinder 5, and absorbs energy through the crushing deformation of the aluminum honeycomb itself. The buffer and anti-collision device are radially from outside to inside, namely, a metal material cover body 1, a metal curved plate 2, a composite material cover body 3, a composite material curved plate 4, an aluminum honeycomb mounting cylinder 5 and an energy-absorbing aluminum honeycomb block 6.

[0025] The entire buffer and anti-collision device is divided into three energy absorption areas. The metal cover body 1 and the metal curved plate 2 are an integrated structure to form the first energy absorption zone, the composite material cover body 3 and the composite material curved plate 4 are an integrated structure to form the second energy absorption zone, and the aluminum honeycomb mounting cylinder 5 and the energy-absorbing aluminum honeycomb block 6 are an integrated structure to form the main energy absorption zone. The structures of each component do not interfere with each other but will interact with each other to achieve the effect of buffering and energy absorption.

[0026] A positioning and mounting mechanism is installed in the center of the energy-absorbing aluminum honeycomb block 6 for positioning and mounting the overall structure of the buffer and anti-collision device. Preferably, the positioning and mounting mechanism is an aluminum honeycomb inner hole mounting rod 7. The center of the energy-absorbing aluminum honeycomb block 6 has a circular hole, and the aluminum honeycomb inner hole mounting rod 7 is installed in the circular hole.

[0027] There are gaps between the first energy absorbing zone, the second energy absorbing zone and the main energy absorbing zone, specifically: there is a gap between the composite material cover 3 and the metal arc plate 2, and there is a gap between the aluminum honeycomb mounting cylinder 5 and the composite material arc plate 4.

[0028] When the buffer and anti-collision device combining composite material and aluminum honeycomb in this embodiment is subjected to radial impact, the metal material cover body 1 of the buffer and anti-collision device is first squeezed, and the impact load is transferred from the metal material cover body 1 to the metal arc plate 2, then to the composite material cover body 3, then to the composite material arc plate 4, then to the aluminum honeycomb mounting cylinder 5, and then to the energy-absorbing aluminum honeycomb block 6. Finally, the aluminum honeycomb of the energy-absorbing aluminum honeycomb block 6 is crushed and the force is transferred to the aluminum honeycomb inner hole mounting rod 7.

[0029] When the external part of the buffer and anti-collision device is subjected to an impact load, the metal cover 1 will first undergo elastic deformation, and the internal metal curved plate 2 will also undergo elastic deformation to resist the external impact load. If the metal cover 1 and the metal curved plate 2 can offset all the external loads, the impact force will not continue to be transmitted to the inside, and the energy will be absorbed by the deformation of the metal cover 1 and the metal curved plate 2; if the metal cover 1 and the metal curved plate 2 cannot completely absorb the external impact load, the metal cover 1 and the metal curved plate 2 will undergo large elastic deformation, and the impact force will continue to be transmitted to the composite material cover 3 and 6 composite materials inside the device. On the material curved plate 4, its deformation principle and force transmission mode are consistent with the metal outer cover. Its deformation principle and force transmission mode are consistent with the metal outer cover. If the composite material cover 3 and the composite material curved plate 4 can offset all the external loads, the impact force will not continue to be transmitted to the inside, and the energy will be absorbed through the deformation of the composite material cover 3 and the composite material curved plate 4; when the composite material cover 3 and the composite material curved plate 4 cannot eliminate the load buffering, it will act locally on the aluminum honeycomb mounting cylinder 5 and the energy-absorbing aluminum honeycomb block 6 in the central area of the device. At this time, the energy-absorbing aluminum honeycomb block 6 is crushed and deformed, absorbing energy, and achieving the function of buffering and anti-collision.

[0030] The buffer and anti-collision device can be installed and fixed in the area and location where the buffer device is needed through the aluminum honeycomb inner hole mounting rod 7. At this time, when subjected to external impact load, the buffer and anti-collision device can rotate under the action of the aluminum honeycomb inner hole mounting rod 7 to eliminate the impact load to a greater extent.

[0031] The embodiments of the present invention disclosed above are intended only to illustrate the present invention. The embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A buffer and anti-collision device combining composite materials and aluminum honeycomb, characterized by: The invention comprises a first energy absorption zone, a second energy absorption zone and a main energy absorption zone which are arranged in sequence from the outside to the inside. The first energy absorption zone and the second energy absorption zone both comprise a cover body and a plurality of curved plates, and the plurality of curved plates are arranged inside the cover body. The first energy absorption zone is made of metal material, and the second energy absorption zone is made of composite material. The main energy absorption zone is a honeycomb structure. The first energy absorption zone comprises a metal cover body (1) and a plurality of metal curved plates (2), and the plurality of metal curved plates (2) are evenly distributed inside the metal cover body (1). The main energy absorption zone comprises an aluminum honeycomb mounting cylinder (5) and an energy absorption aluminum honeycomb block (6), and the energy absorption aluminum honeycomb block (6) is mounted inside the aluminum honeycomb mounting cylinder (5). The second energy absorption zone comprises a composite material cover body (3) and a plurality of composite material curved plates (4), and the plurality of composite material curved plates (4) are evenly distributed inside the composite material cover body (3). A positioning mounting mechanism is mounted at the center of the energy absorption aluminum honeycomb block (6). The positioning and mounting mechanism is an aluminum honeycomb inner hole mounting rod (7), a circular hole is opened in the center of the energy-absorbing aluminum honeycomb block (6), and the aluminum honeycomb inner hole mounting rod (7) is mounted in the circular hole. When the buffer and anti-collision device is subjected to radial impact, the metal material cover body (1) of the buffer and anti-collision device is first squeezed, and the impact load is transmitted from the metal material cover body (1) to the metal arc plate (2), then to the composite material cover body (3), then to the composite material arc plate (4), then to the aluminum honeycomb mounting cylinder (5), and then to the energy-absorbing aluminum honeycomb block (6). Finally, the aluminum honeycomb of the energy-absorbing aluminum honeycomb block (6) is crushed and the force is transmitted to the aluminum honeycomb inner hole mounting rod (7). The mounting rod (7) can install and fix the buffer and anti-collision device in the area and location where the buffer device is required. At this time, when subjected to external impact load, the buffer and anti-collision device can spin under the action of the aluminum honeycomb inner hole mounting rod (7) to eliminate the impact load to a greater extent.

2. The buffer and anti-collision device combining composite material and aluminum honeycomb according to claim 1, characterized in that: The number of the metal arc plates (2) is 7.

3. The buffer and anti-collision device combining composite material and aluminum honeycomb according to claim 1, characterized in that: The metal cover (1) and the metal arc plate (2) are connected by welding.

4. The buffer and anti-collision device combining composite material and aluminum honeycomb according to claim 1, characterized in that: The number of the composite material curved plates (4) is 6.

5. The buffer and anti-collision device combining composite material and aluminum honeycomb according to claim 1, characterized in that: There are gaps between the first energy absorbing area, the second energy absorbing area and the main energy absorbing area.

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