Lightning protection structure based on amphibious vehicle cab bottom

Abstract

The utility model discloses an amphibious vehicle cab bottom based lightning -proof structure, including car body and cab floor, is equipped with the front connecting plate and side support frame on the car body, cab floor bottom is provided with PE board and explosion -proof steel sheet in proper order, and the both sides of explosion -proof steel sheet bottom lap on side support frame, and one end of explosion -proof steel sheet is fixedly connected with the front connecting plate, is equipped with the connecting seat on side support frame, adopts the utility model's amphibious vehicle cab bottom based lightning -proof structure, improves the security of cab, further improves vehicle protection capability.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle technology. Specifically, this utility model relates to a lightning protection structure based on the bottom of the amphibious vehicle cab. Background Technology

[0002] In modern warfare and complex military operations, amphibious vehicles play a crucial role due to their mobility in both land and water environments. However, the areas where they operate, such as coastal mudflats, inland riverbanks, and land-water border areas where armed conflict exists, are often severely threatened by landmines. Landmines, as highly concealed, inexpensive weapons capable of causing significant damage to various vehicles, pose a serious challenge to the safety of amphibious vehicles. If an amphibious vehicle strikes a landmine while in motion, the powerful impact and energy from the explosion will cause direct and severe damage to the vehicle's structure.

[0003] While existing amphibious vehicle mine protection designs employ conventional methods such as V-shaped chassis and mine-resistant seats, these measures still have limitations. The primary function of a V-shaped chassis is to disperse explosive energy to both sides through a specific tilt angle, reducing the upward impact transmitted to the driver's compartment. However, in the complex and ever-changing battlefield environment, the explosive yield, location, and angle of different types of mines are uncertain, making a single V-shaped chassis insufficient to comprehensively and effectively address various extreme situations. When a high-yield mine detonates at close range directly beneath the driver's compartment, the V-shaped chassis may not be able to completely and effectively dissipate the explosive energy, with some energy still being transmitted to the driver's compartment, posing a serious threat to personnel and equipment inside.

[0004] Patent application CN 114440708A, published on May 6, 2022, discloses a mine-resistant road-finding truck. Its main structure includes a truck chassis, a two-way cab, a bulletproof engine compartment, a winch, and a mine sweeper. The bulletproof engine compartment is located at the front of the truck chassis, and the two-way cab is located on top of the chassis. The mine sweeper is tumbled and located at the rear of the chassis. The winch is positioned between the two-way cab and the mine sweeper, and is located on the truck chassis. The winch is used to tumble and lower the mine sweeper. However, this mine-resistant road-finding truck does not solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a lightning protection structure based on the bottom of an amphibious vehicle cab that improves the safety of the cab and further enhances the vehicle's protective capabilities.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The lightning protection structure based on the bottom of the amphibious vehicle cab includes a vehicle body and a cab floor. The vehicle body is provided with a front connecting plate and a side support frame. The bottom of the cab floor is provided with a PE plate and an explosion-proof steel plate in sequence. The bottom sides of the explosion-proof steel plate overlap the side support frame. One end of the explosion-proof steel plate is fixedly connected to the front connecting plate. The side support frame is provided with a connecting seat.

[0008] The connecting seat includes a first connecting seat and a second connecting seat. The top of both the first connecting seat and the second connecting seat is a flat structure. The first connecting seat is bolted to the middle of both sides of the cab floor plate, and the second connecting seat is bolted to the end of the cab floor plate.

[0009] The cab floor, PE board, and explosion-proof steel plate are connected by multiple connecting bolts.

[0010] The bottom of the cab floor is provided with a frame, and the PE plate is provided with grooves corresponding to the frame.

[0011] The cab floor, PE board, and explosion-proof steel plate are each provided in twos, and the top of the first connecting seat is provided with two connecting holes.

[0012] The frame is constructed by welding channel steel and is arranged in both horizontal and vertical directions.

[0013] The bottom of the front connecting plate is evenly distributed with reinforcing ribs.

[0014] The side support frame has a C-shaped cross-section.

[0015] The technical effects of this utility model are as follows: By adopting the lightning protection structure based on the bottom of the amphibious vehicle cab, the floor structure of the cab is strengthened, adding another layer of lightning protection to the amphibious vehicle, further improving the safety of this critical part of the cab, enhancing the amphibious vehicle's ability to protect personnel when facing landmine threats, and solving the problem that a single V-shaped chassis or lightning protection seat solution cannot provide effective and comprehensive protection. It provides further protection for personnel and equipment inside the vehicle, reduces personnel casualties and equipment damage, and improves the vehicle's safety requirements in complex battlefield environments. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following:

[0017] Figure 1 This is a schematic diagram of the lightning protection structure based on the bottom of the amphibious vehicle cab of this utility model;

[0018] Figure 2 This is a schematic diagram of the lightning protection structure at the bottom of the amphibious vehicle cab of this utility model;

[0019] Figure 3This is a schematic diagram of the vehicle body structure in the uninstalled state of the lightning protection structure of this utility model;

[0020] Figure 4-1 and Figure 4-2 It is an exploded view of the cab floor, PE board, and explosion-proof steel plate;

[0021] Figure 5 yes Figure 4-1 A magnified view of a portion of the image;

[0022] Figure 6 yes Figure 3 A magnified view of a portion of the image.

[0023] The markings in the diagram are as follows: 1. Vehicle body; 2. Cab floor; 3. PE board; 4. Explosion-proof steel plate; 5. Front connecting plate; 6. Side support frame; 7. First connecting seat; 8. Second connecting seat; 9. Frame; 10. Groove; 11. Connecting bolt; 12. Countersunk bolt; 13. Connecting hole; 14. Reinforcing rib. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0025] like Figure 1 and Figure 2 As shown, the lightning protection structure based on the bottom of the amphibious vehicle's cab includes a vehicle body 1 and a cab floor 2. The vehicle body 1 is equipped with a front connecting plate 5 and a side support frame 6. A PE plate 3 and an explosion-proof steel plate 4 are sequentially installed at the bottom of the cab floor 2. The bottom sides of the explosion-proof steel plate 4 overlap the side support frame 6, and one end of the explosion-proof steel plate 4 is fixedly connected to the front connecting plate 5. A connecting seat is provided on the side support frame 6. This lightning protection structure mainly consists of the explosion-proof steel plate 4, the PE plate 3, and the cab floor 2. The PE plate 3 is made of ultra-high molecular weight polyethylene. The cab floor 2 is located above the vehicle frame floor. When subjected to explosive loads, the explosion-proof steel plate 4 provides high-strength blocking and heat conduction and dissipation; the PE plate 3, with its extremely high tensile modulus, undergoes large deformation, primarily serving as an energy absorber and buffer. The high-strength explosion-proof steel plate 4 possesses high strength and toughness, capable of withstanding the enormous pressure and impact of an explosion. It prevents fragments and flames from spreading outwards, thus protecting surrounding personnel and equipment and effectively resisting blast impacts. Furthermore, the excellent thermal conductivity of the explosion-proof steel plate 4 allows for rapid dissipation of heat generated by the explosion, reducing local temperature and preventing secondary explosions of surrounding flammable and explosive materials due to excessive heat.

[0026] like Figure 3 and Figure 6As shown, the connecting seat includes a first connecting seat 7 and a second connecting seat 8. The tops of both the first connecting seat 7 and the second connecting seat 8 are flat structures. The first connecting seat 7 is bolted to the middle of both sides of the cab floor 2, and the second connecting seat 8 is bolted to the end of the cab floor 2. The first connecting seat 7 and the second connecting seat 8 are fixed to the side of the side support frame 6 by welding. The front connecting plate 5 is welded to fix the explosion-proof steel plate 4. The first connecting seat 7 and the second connecting seat 8 are bolted to the middle and end of the side of the overall lightning protection structure, thus forming a stable connection with the vehicle body 1. The connection position of the connecting seat is located on the side support frame 6 of the vehicle body 1. The connecting seat is small in size and occupies little space under the cab floor 2, which can make way for other structural space.

[0027] like Figure 4-1 and Figure 4-2 As shown, the cab floor 2, PE board 3, and explosion-proof steel plate 4 are connected by multiple connecting bolts 11. The above structure tightly connects the three into one unit with no gaps between adjacent parts. The detachable ends of all bolts are vertically upward, making installation simple and convenient.

[0028] like Figure 4-1 and Figure 4-2 As shown, the bottom of the cab floor 2 is provided with a frame 9, and the PE plate 3 is provided with a groove 10 corresponding to the frame 9. The cab floor 2 and the frame 9 are connected and fixed by multiple countersunk bolts 12. The above structure makes the side of the frame 9 the contact part with the PE plate 3, which increases the contact area between the frame 9 and the PE plate 3. After being subjected to an explosion impact, the impact energy can be transmitted along the frame 9 and dispersed into the PE plate 3, and quickly absorbed by the buffer of the PE plate 3. The cooperation between the frame 9 and the groove 10 also improves the stability of the cab floor 2, the PE plate 3 and the explosion-proof steel plate 4 connected as a whole.

[0029] like Figure 4-1 and Figure 4-2 As shown, the cab floor plate 2, PE plate 3, and explosion-proof steel plate 4 are each provided with two sections, and the top of the first connecting seat 7 has two connecting holes 13. The cab floor plate 2, PE plate 3, and explosion-proof steel plate 4 are all composed of two plates and assembled into a whole. When one plate is deformed, only the affected part needs to be replaced, which reduces installation difficulty and maintenance costs. The first connecting seat 7 has two connecting holes 13, and two bolts are used to connect the joints of the two cab floor plates 2, PE plate 3, and explosion-proof steel plate 4 into a whole, thereby forming a reliable connection between the two plates and improving stability.

[0030] like Figure 4-1 and Figure 4-2As shown, the frame 9 is constructed of welded channel steel, and is arranged in both the transverse and longitudinal directions. The use of channel steel structure in the frame 9 further improves the structural strength. The channel steel frame 9 is distributed in both the transverse and longitudinal directions and is interconnected, which is conducive to the rapid transfer of impact energy to the overall structure and the rapid dispersion of impact by the PE board 3.

[0031] like Figure 3 As shown, reinforcing ribs 14 are evenly distributed at the bottom of the front connecting plate 5. The reinforcing ribs 14 further improve the structural strength of the front connecting plate 5, while ensuring the flatness of its top and ensuring the overall lightning protection structure is installed horizontally and stably.

[0032] like Figure 1 As shown, the side support frame 6 has a C-shaped cross-section. This structure improves structural strength and ensures the stability of the lightning protection structure installation. The side support frame 6 also helps to transfer the impact to both sides of the vehicle body 1, preventing the impact from being entirely borne by the explosion-proof steel plate 4, PE plate 3, and cab floor 2.

[0033] The vehicle's lightning protection structure consists of a three-layer design: an explosion-proof steel plate (4 layers), a PE plate (3 layers), and a cab floor plate (2 layers). The explosion interception process is as follows: shock wave, shrapnel → chassis floor plate → explosion-proof steel plate (4 layers) → ultra-high molecular weight polyethylene plate → cab floor plate (2 layers). When an explosion occurs, the PE material can absorb and disperse some of the energy generated by the explosion, slowing down the propagation speed of the blast impact and reducing the destructive force of the explosion.

[0034] This lightning protection structure, based on the bottom of the amphibious vehicle's cab, strengthens the cab floor 2 structure, adding another layer of lightning protection to the amphibious vehicle. This further enhances the safety of this critical component, the cab, and improves the amphibious vehicle's ability to protect personnel when facing landmine threats. It solves the problem that a single V-shaped chassis or lightning-proof seat solution cannot provide effective and comprehensive protection, providing further protection for personnel and equipment inside the vehicle, reducing casualties and equipment damage, and improving the vehicle's safety requirements in complex battlefield environments.

[0035] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A lightning protection structure based on the bottom of an amphibious vehicle's cab, characterized in that: The vehicle includes a vehicle body (1) and a cab floor (2). The vehicle body (1) is provided with a front connecting plate (5) and a side support frame (6). The bottom of the cab floor (2) is provided with a PE plate (3) and an explosion-proof steel plate (4). The bottom sides of the explosion-proof steel plate (4) overlap on the side support frame (6). One end of the explosion-proof steel plate (4) is fixedly connected to the front connecting plate (5). The side support frame (6) is provided with a connecting seat.

2. The lightning protection structure based on the bottom of the amphibious vehicle cab as described in claim 1, characterized in that: The connecting seat includes a first connecting seat (7) and a second connecting seat (8). The top of the first connecting seat (7) and the second connecting seat (8) are both planar structures. The first connecting seat (7) is bolted to the middle of both sides of the cab floor plate (2), and the second connecting seat (8) is bolted to the end of the cab floor plate (2).

3. The lightning protection structure based on the bottom of the amphibious vehicle cab as described in claim 2, characterized in that: The cab floor (2), PE board (3) and explosion-proof steel plate (4) are connected by multiple connecting bolts (11).

4. The lightning protection structure based on the bottom of the amphibious vehicle cab as described in claim 3, characterized in that: The bottom of the cab floor (2) is provided with a frame (9), and the PE board (3) is provided with a groove (10) corresponding to the frame (9).

5. The lightning protection structure based on the bottom of the amphibious vehicle cab according to any one of claims 2-4, characterized in that: The cab floor (2), PE board (3) and explosion-proof steel plate (4) are each provided in twos, and the top of the first connecting seat (7) is provided with two connecting holes (13).

6. The lightning protection structure based on the bottom of the amphibious vehicle cab as described in claim 4, characterized in that: The frame (9) is constructed by welding channel steel and is arranged in both the transverse and longitudinal directions.

7. The lightning protection structure based on the bottom of the amphibious vehicle cab as described in claim 1, characterized in that: The bottom of the front connecting plate (5) is evenly distributed with reinforcing ribs (14).

8. The lightning protection structure based on the bottom of the amphibious vehicle cab as described in claim 5, characterized in that: The side support frame (6) has a C-shaped cross section.

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