Amphibious vehicle cargo hold floor sealing structure

Abstract

The utility model belongs to amphibious vehicle technical field, more specifically, it is related to amphibious vehicle cargo hold bottom plate sealing structure. Including frame (1), cargo hold bottom plate (4), frame (1) upper middle part sets up the frame arrangement cavity (6) of upper concave, cargo hold bottom plate (4) bottom middle part sets up the bottom plate bottom (7) of lower convex, bottom plate bottom (7) is clamped in frame arrangement cavity (6), and the bottom plate bottom (7) and frame (1) between set up sealing sponge pad (2), and frame (1) and cargo hold bottom plate (4) are fixedly connected through a plurality of bolts (5). The amphibious vehicle cargo hold bottom plate sealing structure, simple structure can adapt to the complex working condition of water and land, have high sealing performance, high durability, and the dustproof and waterproof effect is achieved by the special-shaped structure design.

Description

Technical Field

[0001] This utility model belongs to the field of amphibious vehicle technology, and more specifically, it relates to a sealing structure for the cargo compartment floor of an amphibious vehicle. Background Technology

[0002] Amphibious vehicles combine the functions of land and water travel, playing a vital role in transportation across complex terrains and disaster relief. However, the sealing structure of their cargo hold floor faces numerous challenges. When traveling on land, vehicles encounter bumpy roads, and the cargo hold floor not only bears the weight of the cargo but also experiences displacement at the connection points with surrounding structures due to vibration. Existing sealing structures, such as those using simple rubber sealing strips, are prone to loosening and wear after prolonged vibration, leading to seal failure. External dust and mud can then enter the cargo hold, affecting cargo quality. When amphibious vehicles are in water travel mode, the situation becomes even more complex. The cargo hold floor must withstand water pressure, and traditional sealing structures are easily penetrated by water under pressure. Some amphibious vehicles use welded seals, but even tiny pores or defects at the welds can create seepage channels under long-term water pressure. Furthermore, seawater is corrosive, accelerating the aging of sealing materials and further reducing sealing performance. If seawater enters the cargo hold, it will not only damage the cargo but may also corrode the internal structure, affecting vehicle safety and service life. Furthermore, the frequent loading and unloading operations in amphibious vehicle cargo holds place high demands on the durability and ease of use of the sealing structure. Existing sealing structures experience a significant decline in sealing performance after repeated loading and unloading collisions, and repairing or replacing sealing components is cumbersome and time-consuming, impacting vehicle efficiency.

[0003] The existing technology includes a technology entitled "An Amphibious Vehicle" with publication (announcement) number "CN113910850A". This technology discloses an amphibious vehicle, including a driver's cab and a vehicle body. The vehicle body is fixedly installed on one side of the driver's cab. The deck plate, side plates, bottom plate, and bow plate are all watertight, forming a sealed compartment for the amphibious vehicle, giving it buoyancy in water. All components are made of aluminum alloy, reducing the overall structural weight of the amphibious vehicle and increasing its loading capacity. The deck frame, side frame, bottom frame, and bow frame are all made of hollow aluminum alloy square tubes, arranged laterally at regular intervals to form box-shaped compartments, ensuring the overall strength of the vehicle. The upper surface of the deck structure is a large, flat platform surface that can carry personnel, cargo, and rescue equipment. The front axle output, mid-axle output, and stern engine output can be switched via a transfer case switch, allowing for individual or combined outputs. It is also equipped with an exhaust gas booster, which saves resources and provides sustained power.

[0004] However, this technology does not address the technical issues and solutions of this application. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a sealing structure for the cargo compartment floor of an amphibious vehicle that is simple in structure, adaptable to complex working conditions on land and water, has high sealing performance and high durability, and achieves dustproof and waterproof effects through this irregular structural design, in order to overcome the shortcomings of the existing technology.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model is a sealing structure for the cargo hold floor of an amphibious vehicle, including a frame and a cargo hold floor. The upper middle part of the frame has a concave frame arrangement cavity, and the lower middle part of the cargo hold floor has a convex bottom plate. The bottom plate is fitted into the frame arrangement cavity. A sealing sponge pad is provided between the bottom plate and the frame. The frame and the cargo hold floor are fixedly connected by multiple bolts.

[0007] The sealing sponge pad and the bottom of the base plate are fixedly bonded together by an adhesive layer.

[0008] The sealing sponge pad includes a front horizontal section, a front inclined section, a bottom horizontal section, a rear inclined section, a rear horizontal section, a left horizontal section, and a right horizontal section.

[0009] The front horizontal section, the front inclined section, the bottom horizontal section, the rear inclined section, and the rear horizontal section are an integral structure.

[0010] The bolts pass through the cargo hold floor, adhesive layer, sealing sponge gasket, and vehicle frame from top to bottom.

[0011] The frame includes a front frame assembly and a rear frame assembly.

[0012] The front frame assembly has a front cavity for the frame arrangement cavity at the rear, and the rear frame assembly has a rear cavity for the frame arrangement cavity at the front.

[0013] Multiple bolts pass through the cargo hold floor, adhesive layer, sealing sponge pad, and front cavity of the chassis arrangement cavity from top to bottom.

[0014] The bolts pass through the cargo hold floor, adhesive layer, sealing sponge pad, and rear cavity of the frame arrangement cavity from top to bottom.

[0015] The adhesive layer covers the upper surface of the sealing sponge pad.

[0016] The working principle and beneficial effects of this utility model are as follows: The amphibious vehicle cargo hold floor sealing structure of this utility model features a concave frame arrangement cavity in the upper middle part of the frame and a convex bottom plate in the lower middle part of the cargo hold floor, forming a multi-segmented zigzag contact surface structure. This creates a multi-segmented surface seal between the sealing sponge pad and the frame, effectively preventing particles, seawater, dust, and other impurities from entering the vehicle's underside through the seams. This fundamentally avoids problems such as corrosion of internal equipment and water ingress caused by impurities. This design, while ensuring the sealing performance of the frame and cargo hold floor, significantly reduces manpower and material consumption, decreases assembly process costs, and improves the overall structural stability and product quality of the cargo hold floor, providing crucial assurance for the reliable operation of the amphibious vehicle in complex environments. Furthermore, the sealing structure provided by this utility model, through optimized design, significantly enhances the sealing reliability of the cargo hold floor and frame, fundamentally reducing the probability of water and dust ingress into this area. This improvement directly reduces the intrusion of impurities into the cargo hold floor and internal chassis equipment, resulting in a more stable working environment for various components, effectively extending the overall service life of the equipment, and significantly reducing the risk of failure due to seal failure. Simultaneously, this structure, through reliable sealing, systematically enhances the operational safety of the cargo hold floor and internal chassis equipment, reducing maintenance work caused by water and dust ingress, and lowering the maintenance costs throughout the vehicle's lifecycle. Its unique structural design eliminates complex assembly procedures, making operation simple and efficient. It facilitates rapid assembly on the production line and benefits subsequent inspection and maintenance, ensuring both sealing quality and process economy, providing practical and efficient technical support for the reliable operation of amphibious vehicles. Attached Figure Description

[0017] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein: Figure 1 This is a side sectional view of the sealing structure of the amphibious vehicle cargo compartment floor as described in this utility model. Figure 2 This is a front sectional view of the sealing structure of the amphibious vehicle cargo compartment floor as described in this utility model. The labels in the attached diagram are as follows: 1. Chassis; 2. Sealing foam pad; 3. Adhesive layer; 4. Cargo hold floor; 5. Bolt; 6. Chassis arrangement cavity; 7. Bottom of floor; 8. Front horizontal section; 9. Front inclined section; 10. Bottom horizontal section; 11. Rear inclined section; 12. Rear horizontal section; 13. Front chassis assembly; 14. Rear chassis assembly; 15. Front cavity of chassis arrangement cavity; 16. Rear cavity of chassis arrangement cavity; 17. Left horizontal section; 18. Right horizontal section. Detailed Implementation

[0018] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part: As attached Figure 1 Appendix Figure 2 As shown, this utility model is a sealing structure for the cargo hold floor of an amphibious vehicle, including a frame 1 and a cargo hold floor 4. The frame 1 has a concave frame arrangement cavity 6 in its upper middle section, and the cargo hold floor 4 has a convex bottom plate 7 in its lower middle section. The bottom plate 7 is fitted into the frame arrangement cavity 6. A sealing sponge pad 2 is placed between the bottom plate 7 and the frame 1. The frame 1 and the cargo hold floor 4 are fixedly connected by multiple bolts 5. This structure addresses the shortcomings of existing technologies by proposing an improved technical solution. In this structural design, the concave frame arrangement cavity 6 in the upper middle section of the frame 1 and the convex bottom plate 7 in the lower middle section of the cargo hold floor 4 form a multi-segmented zigzag contact surface structure. This creates a multi-segmented surface seal between the sealing sponge pad 2 and the frame 1, effectively preventing particles, seawater, dust, and other impurities from entering the vehicle's interior through the seams, fundamentally avoiding problems such as corrosion of internal equipment and water ingress caused by impurities. Compared to traditional solutions, this design, while ensuring the airtightness of the chassis 1 and cargo floor 4, significantly reduces manpower and material consumption, decreases assembly process costs, and improves the overall structural stability and product quality of the cargo floor 4, providing crucial assurance for the reliable operation of the amphibious vehicle in complex environments. Furthermore, the sealing structure provided by this invention, through optimized design, significantly enhances the sealing reliability of the cargo floor and chassis, fundamentally reducing the probability of water and dust ingress into this area. This improvement directly reduces the erosion of the cargo floor 4 and internal equipment of the chassis 1 by impurities, resulting in a more stable working environment for various components, effectively extending the overall service life of the equipment, and significantly reducing the risk of failure due to seal failure. Simultaneously, this structure, through reliable sealing, systematically improves the operational safety of the cargo floor and internal equipment of the chassis 1, reducing maintenance work caused by water and dust ingress, and lowering the maintenance costs throughout the vehicle's lifecycle. Its unique structural design eliminates the need for complex assembly processes, making operation simple and efficient. It facilitates rapid assembly on production lines and aids in later maintenance and repair. While ensuring sealing quality, it also considers process economy, providing practical and efficient technical support for the reliable operation of amphibious vehicles. The amphibious vehicle cargo hold floor sealing structure described in this utility model is simple in structure, adaptable to complex water and land conditions, possesses high sealing performance and high durability, and achieves dustproof and waterproof effects through its unique structural design.

[0019] The sealing sponge pad 2 and the bottom of the base plate 7 are fixedly bonded together by an adhesive layer 3. In this structure, the adhesive layer 3 effectively acts as an adhesive, ensuring a reliable connection between the sealing sponge pad 2 and the bottom of the base plate 7. Bolts 5 securely connect the vehicle frame 1 and the cargo compartment floor 4.

[0020] The sealing sponge pad 2 includes a front horizontal section 8, a front inclined section 9, a bottom horizontal section 10, a rear inclined section 11, a rear horizontal section 12, a left horizontal section 17, and a right horizontal section 18. With this structure, the sealing sponge pad 2 adapts to the multi-segmented, zigzag-shaped contact surface structure of the vehicle frame and cargo compartment bottom, effectively preventing particles, seawater, dust, and other impurities from invading the vehicle's undercarriage through the seams, fundamentally avoiding problems such as corrosion of internal equipment and water ingress caused by impurities.

[0021] The front horizontal section 8, the front inclined section 9, the bottom horizontal section 10, the rear inclined section 11, and the rear horizontal section 12 are an integral structure. The bolts 5 pass through the cargo hold floor 4, the adhesive layer 3, the sealing sponge gasket 2, and the frame 1 sequentially from top to bottom. In this structure, multiple bolts are installed at different locations to securely connect the frame and the cargo hold floor.

[0022] The frame 1 includes a front frame assembly 13 and a rear frame assembly 14. The front frame assembly 13 has a front cavity 15 at its rear, and the rear frame assembly 14 has a rear cavity 16 at its front. Multiple bolts 5 pass through the cargo hold floor 4, adhesive layer 3, sealing sponge pad 2, and the front cavity 15 of the frame arrangement cavity sequentially from top to bottom. The adhesive layer 3 covers the upper surface of the sealing sponge pad 2. In this structure, the front frame assembly 13 and the rear frame assembly 14 are separate structures, each fixed to the cargo hold floor by bolts to form an integrated structure, ensuring reliable connection.

[0023] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any 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 sealing structure for the cargo hold floor of an amphibious vehicle, characterized in that: The vehicle includes a frame (1) and a cargo hold floor (4). The upper middle part of the frame (1) is provided with a recessed frame arrangement cavity (6), and the lower middle part of the cargo hold floor (4) is provided with a convex bottom plate (7). The bottom plate (7) is fitted into the frame arrangement cavity (6). A sealing sponge pad (2) is provided between the bottom plate (7) and the frame (1). The frame (1) and the cargo hold floor (4) are fixedly connected by multiple bolts (5).

2. The amphibious vehicle cargo hold floor sealing structure according to claim 1, characterized in that: The sealing sponge pad (2) and the bottom of the base plate (7) are fixedly bonded together by an adhesive layer (3).

3. The amphibious vehicle cargo hold floor sealing structure according to claim 1 or 2, characterized in that: The sealing sponge pad (2) includes a front horizontal section (8), a front inclined section (9), a bottom horizontal section (10), a rear inclined section (11), a rear horizontal section (12), a left horizontal section (17), and a right horizontal section (18).

4. The amphibious vehicle cargo hold floor sealing structure according to claim 3, characterized in that: The front horizontal section (8), the front inclined section (9), the bottom horizontal section (10), the rear inclined section (11), and the rear horizontal section (12) are an integral structure.

5. The amphibious vehicle cargo hold floor sealing structure according to claim 1 or 2, characterized in that: The bolt (5) passes through the cargo hold floor (4), adhesive layer (3), sealing sponge pad (2), and frame (1) from top to bottom.

6. The amphibious vehicle cargo hold floor sealing structure according to claim 5, characterized in that: The frame (1) includes a front frame assembly (13) and a rear frame assembly (14).

7. The amphibious vehicle cargo hold floor sealing structure according to claim 6, characterized in that: The front frame assembly (13) has a front frame arrangement cavity (15) at its rear, and the rear frame assembly (14) has a rear frame arrangement cavity (16) at its front.

8. The amphibious vehicle cargo hold floor sealing structure according to claim 7, characterized in that: Multiple bolts (5) pass through the cargo hold floor (4), adhesive layer (3), sealing sponge pad (2), and front cavity (15) of the frame arrangement cavity from top to bottom.

9. The amphibious vehicle cargo hold floor sealing structure according to claim 7, characterized in that: The bolt (5) passes through the cargo hold floor plate (4), adhesive layer (3), sealing sponge pad (2), and rear cavity (16) of the frame arrangement cavity from top to bottom.

10. The amphibious vehicle cargo hold floor sealing structure according to claim 2, characterized in that: The adhesive layer (3) covers the upper surface of the sealing sponge pad (2).

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