Honeycomb energy absorption device for railway vehicle

Abstract

The utility model discloses a honeycomb energy-absorbing device for a railway vehicle, which relates to the technical field of wave-absorbing materials and comprises a bottom sealing plate, a top sealing plate vertically arranged above the bottom sealing plate, a honeycomb layer arranged between the bottom sealing plate and the top sealing plate, and a partition layer staggered with the honeycomb layer and arranged between the bottom sealing plate and the top sealing plate. And the bolt positioning assemblies are arranged at the corner ends of the bottom sealing plate and the top sealing plate. According to the design, on the basis of opposite sealing combination of the bottom sealing plate and the top sealing plate, combined inner sealing assembly of the honeycomb layer and the separation layer is achieved, bolts of the bolt positioning assemblies are used for tightening, integrated assembly is achieved, production and assembly are convenient and efficient, meanwhile, follow-up disassembly, assembly, replacement and maintenance are simpler, only damaged parts need to be replaced, the maintenance cost is reduced, and the production efficiency is improved. And the combination of the burst film and the airtight cavity is arranged in the bolt positioning assembly, so that the puncture head gradually punctures the burst film to release pressure under the pressure when the honeycomb energy absorption device is subjected to external impact, and the energy absorption effect of the honeycomb energy absorption device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wave-absorbing materials, and in particular to a honeycomb energy-absorbing device for rail vehicles. Background Technology

[0002] Honeycomb panels are lightweight materials with a honeycomb structure. Due to their high strength, low density, and environmentally friendly properties, they are widely used in many fields, such as transportation. In the transportation sector, they are used in the interior of high-speed rail and subway vehicles and in track structural components, providing excellent shock absorption and impact resistance. Honeycomb energy-absorbing panels are often combined to achieve their lightweight and impact-resistant functions. For example, a multi-layer wave-absorbing honeycomb camouflage composite panel (publication announcement number CN214873190U) disclosed on the China Patent Network shows that the honeycomb panel device can be in the form of a honeycomb panel. It uses multiple layers of honeycomb with wave-absorbing function to form a structural wave-absorbing material with a certain functional gradient through effective bonding. It combines wave absorption and load-bearing into one, and has excellent mechanical properties, full spectrum, and strong absorption characteristics.

[0003] However, the aforementioned disclosed patents and existing market-used cellular energy-absorbing devices still have some shortcomings: While existing energy-absorbing structures using bonded cellular panels possess good integrated encapsulation characteristics, the assembly process is cumbersome, and they lack convenient disassembly and assembly capabilities. Furthermore, routine maintenance is difficult and costly after partial damage. Therefore, those skilled in the art have provided cellular energy-absorbing devices for rail vehicles to address the problems mentioned in the background section. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cellular energy-absorbing device for rail vehicles, which solves the problem that the existing cellular energy-absorbing devices mentioned in the background art are cumbersome in daily assembly and subsequent disassembly and maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a honeycomb energy-absorbing device for rail vehicles, comprising: a bottom sealing plate; a top sealing plate, vertically disposed above the bottom sealing plate; a honeycomb layer, wherein at least one set of the honeycomb layer is disposed between the bottom sealing plate and the top sealing plate; a partition layer, wherein at least one set of the partition layer is disposed between the bottom sealing plate and the top sealing plate; and a bolt positioning assembly, disposed at the corners of the bottom sealing plate and the top sealing plate, wherein the bolts of the bolt positioning assembly are tightened to press the bottom sealing plate and the top sealing plate against each other, thereby applying positioning pressure to the honeycomb layer and the partition layer.

[0006] As a further technical solution of this utility model: the bolt positioning assembly includes a screw structure located at the corner of the top sealing plate and a nut structure located at the corner of the bottom sealing plate, wherein the screw structure and the nut structure are threadedly connected.

[0007] As a further technical solution of this utility model: the nut structure includes a pivot pin rotatably connected to the corner of the bottom sealing plate and a nut disposed on the pivot pin.

[0008] As a further technical solution of this utility model: the screw structure includes an arm sleeve provided at the corner of the top sealing plate, the other end of the arm sleeve is slidably connected to a telescopic arm, and the bottom end of the telescopic arm is provided with a screw end.

[0009] As a further technical solution of this utility model: the arm sleeve is provided with at least one set of bursting membranes inside, and the arm sleeve is provided with at least one set of airtight cavities through the bursting membranes.

[0010] As a further technical solution of this utility model: the top end of the telescopic arm is provided with a puncture head, and the puncture head has a conical structure.

[0011] As a further technical solution of this utility model: the corner ends of the honeycomb layer are provided with clearance slots that are adapted to the bolt positioning assembly.

[0012] As a further technical solution of this utility model: the corner ends of the partition layer are provided with guide holes that are compatible with the bolt positioning assembly.

[0013] This invention provides a honeycomb energy-absorbing device for rail vehicles, which has the following advantages compared with the prior art:

[0014] 1. The honeycomb energy absorption device designed in this paper is based on the combination of bottom sealing plate and top sealing plate, which internally seals the honeycomb layer and the separator layer, and uses the bolts of the bolt positioning component to tighten them to achieve integrated assembly. Its production and assembly are convenient and efficient, and subsequent disassembly, replacement and maintenance are simpler. Only the damaged parts need to be replaced, which reduces maintenance costs.

[0015] 2. The honeycomb energy absorption device designed in this way combines a bursting membrane and an airtight cavity inside the bolt positioning assembly. When subjected to external impact, its piercing head gradually punctures the bursting membrane under pressure to release pressure, playing an auxiliary energy absorption role and greatly improving the energy absorption effect of the honeycomb energy absorption device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a cellular energy-absorbing device used in rail vehicles.

[0017] Figure 2 An exploded view of a cellular energy-absorbing device used in rail vehicles;

[0018] Figure 3 This is a plan view of a cellular energy-absorbing device used in rail vehicles.

[0019] Figure 4This is a schematic diagram of the bolt positioning assembly in a cellular energy-absorbing device used in rail vehicles.

[0020] Figure 5 This is a partial cross-sectional view of the bolt positioning assembly in a cellular energy-absorbing device for rail vehicles.

[0021] In the diagram: 1. Bottom sealing plate; 2. Top sealing plate; 3. Honeycomb layer; 4. Separator layer; 5. Bolt positioning assembly; 51. Screw structure; 511. Arm sleeve; 512. Telescopic arm; 513. Screw end; 514. Airtight cavity; 515. Bursting membrane; 516. Puncture head; 52. Nut structure; 521. Turning pin; 522. Nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0023] Please see Figure 1-4 This utility model provides a technical solution for a honeycomb energy-absorbing device for rail vehicles: The honeycomb energy-absorbing device for rail vehicles includes a bottom sealing plate 1, a top sealing plate 2 vertically disposed above the bottom sealing plate 1, a honeycomb layer 3 disposed between the bottom sealing plate 1 and the top sealing plate 2, a partition layer 4 with staggered honeycomb layers 3 disposed between the bottom sealing plate 1 and the top sealing plate 2, and bolt positioning assemblies 5 disposed at the corners of the bottom sealing plate 1 and the top sealing plate 2. Using a screw structure 51 as a guide rod component, the honeycomb layer 3 and the partition layer 4 are stacked alternately on the top sealing plate 2, and then the bottom sealing plate 1 is sealed, with its nut structure 52 aligned with the screw structure 51 to form the bolt positioning assembly 5. Tightening the bolts of the bolt positioning assembly 5 causes the bottom sealing plate 1 and the top sealing plate 2 to press against each other, applying positioning pressure to the honeycomb layer 3 and the partition layer 4, achieving convenient integrated assembly. Specifically:

[0024] The corners of the honeycomb layer 3 are provided with clearance slots that are compatible with the bolt positioning assembly 5, and the corners of the partition layer 4 are provided with guide holes that are compatible with the bolt positioning assembly 5. By providing clearance slots and guide holes that are compatible with the bolt positioning assembly 5 on the honeycomb layer 3 and the partition layer 4, the honeycomb layer 3 and the partition layer 4 can be stacked and installed in a staggered manner. The bolt positioning assembly 5 can be installed internally to achieve its tightening and positioning, improve the smoothness of the honeycomb energy absorption device, and better adapt to the modular installation of rail vehicles.

[0025] As a further embodiment of this invention, the bolt positioning assembly 5 includes a screw structure 51 located at the corner of the top sealing plate 2 and a nut structure 52 located at the corner of the bottom sealing plate 1. The screw structure 51 and the nut structure 52 are threadedly connected. By utilizing the thread fit between the nut structure 52 and the screw structure 51, a bolt tightening state is formed, which presses and tightens the bottom sealing plate 1 and the top sealing plate 2, while also applying pressure to the combination of the honeycomb layer 3 and the partition layer 4, so that they are assembled as a whole to form a multi-layer honeycomb energy absorption device.

[0026] Furthermore, the nut structure 52 includes a pivot pin 521 rotatably connected to the corner of the bottom sealing plate 1 and a nut 522 disposed on the pivot pin 521. The screw structure 51 includes a force sleeve 511 disposed at the corner of the top sealing plate 2. The other end of the force sleeve 511 is slidably connected to a telescopic arm 512, and the bottom end of the telescopic arm 512 is provided with a screw end 513. By rotating the pivot pin 521, after the nut 522 is aligned with the screw end 513, the nut 522 can be turned and screwed along the screw end 513. The screw thread is pushed forward to form a bolted fixed state. Under the tightening of the bolts at the screw end 513 and the nut 522, a downward pulling force is applied to the telescopic boom 512, causing the telescopic boom 512 to extend to its maximum end from the boom sleeve 511. The downward pulling force causes the bottom sealing plate 1 and the top sealing plate 2 to press and position the honeycomb layer 3 and the separator layer 4 together under the pulling force, completing the assembly work. When disassembly and maintenance are required in the future, the nut structure 52 can be disassembled and replaced for maintenance simply by turning the knob off the screw structure 51. Example

[0027] Please see Figure 1 , Figure 5 This embodiment further explains Example 1. The arm sleeve 511 is provided with at least one set of bursting membranes 515 inside, and the arm sleeve 511 is provided with at least one set of airtight cavities 514 through the bursting membranes 515. By setting the combination of bursting membranes 515 and airtight cavities 514 inside the arm sleeve 511, it serves as an airtight pressure relief component. When the honeycomb energy absorption device is subjected to external pressure impact, the bursting of the bursting membranes 515 and the synchronous pressure relief of the airtight cavities 514 play an auxiliary pressure relief function, thereby improving the energy absorption of the honeycomb energy absorption device.

[0028] Furthermore, the top of the telescopic boom 512 is provided with a piercing head 516, which has a conical structure. When the honeycomb energy-absorbing device is subjected to external pressure, the telescopic boom 512 retracts into the arm sleeve 511 under pressure. At the same time as the pressure is contracted, the piercing head 516 pierces the burst membrane 515 in sequence, which plays a step-by-step role in depressurization and pressure relief, thereby improving the energy absorption function of the honeycomb energy-absorbing device.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A honeycomb energy-absorbing device for rail vehicles, characterized in that, include: Bottom sealing plate (1); The top sealing plate (2) is vertically positioned above the bottom sealing plate (1); A honeycomb layer (3) is provided, and the honeycomb layer (3) is provided in at least one set between the bottom sealing plate (1) and the top sealing plate (2); A partition layer (4) is provided, wherein the partition layer (4) is provided with at least one set of interlaced honeycomb layers (3) between the bottom sealing plate (1) and the top sealing plate (2); The bolt positioning assembly (5) is located at the corner of the bottom sealing plate (1) and the top sealing plate (2). The bolt positioning assembly (5) tightens the bolts, so that the bottom sealing plate (1) and the top sealing plate (2) press against each other, and apply positioning pressure to the honeycomb layer (3) and the separator layer (4).

2. The honeycomb energy-absorbing device for rail vehicles according to claim 1, characterized in that, The bolt positioning assembly (5) includes a screw structure (51) located at the corner of the top sealing plate (2) and a nut structure (52) located at the corner of the bottom sealing plate (1), wherein the screw structure (51) and the nut structure (52) are threadedly connected.

3. The honeycomb energy-absorbing device for rail vehicles according to claim 2, characterized in that, The nut structure (52) includes a pivot pin (521) rotatably connected to the corner of the bottom sealing plate (1) and a nut (522) provided on the pivot pin (521).

4. The honeycomb energy-absorbing device for rail vehicles according to claim 2, characterized in that, The screw structure (51) includes a force sleeve (511) located at the corner of the top sealing plate (2), and the other end of the force sleeve (511) is slidably connected to a telescopic arm (512), and the bottom end of the telescopic arm (512) is provided with a screw end (513).

5. The honeycomb energy-absorbing device for rail vehicles according to claim 4, characterized in that, The arm sleeve (511) is provided with at least one set of bursting membranes (515) inside, and the arm sleeve (511) is provided with at least one set of airtight cavities (514) through the bursting membranes (515).

6. The honeycomb energy-absorbing device for rail vehicles according to claim 4, characterized in that, The top end of the telescopic boom (512) is provided with a piercing head (516), which is a conical structure.

7. The honeycomb energy-absorbing device for rail vehicles according to claim 1, characterized in that, The corners of the honeycomb layer (3) are provided with clearance slots that are compatible with the bolt positioning assembly (5).

8. The honeycomb energy-absorbing device for rail vehicles according to claim 1, characterized in that, The corners of the partition layer (4) are provided with guide holes that are compatible with the bolt positioning assembly (5).

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