Multi-functional carriage based on emergency guarantee and recreational vehicle modification

Abstract

This invention relates to the field of vehicle modification technology, specifically to a multi-functional vehicle body based on emergency support and recreational vehicle modification. It is used for modification of light truck chassis or small passenger car chassis with a length of less than 6 meters. The vehicle body includes a main body with three openings in the rear end area. There is a central opening on the rear end face and a side opening on each of the left and right side walls. This invention provides three openings at the rear end and on the left and right sides of the vehicle body, breaking the limitation of the traditional single rear door and significantly improving the efficiency of personnel passage, material loading and unloading, and equipment deployment. It is particularly suitable for complex terrain or narrow working spaces, meeting the needs of rapid emergency response and multi-directional interaction in outdoor recreation.

Description

Technical Field

[0001] This invention relates to the field of vehicle modification technology, specifically to a multi-functional vehicle based on the modification of emergency support and leisure vehicles. Background Technology

[0002] With the improvement of emergency rescue systems and the rise of outdoor leisure culture, the demand for specialized modified vehicles that combine functionality and comfort (such as emergency command vehicles, mobile medical units, field rescue vehicles, and camping RVs) is increasing. The core of these vehicles lies in the flexible adaptability of their cabin space—they must meet the high-intensity task requirements of rapid deployment at disaster sites, material transfer, and personnel rescue, while also providing a comfortable environment for rest, living, or working in non-emergency situations.

[0003] However, existing modified truck bodies generally suffer from problems such as limited functionality, enclosed space, and poor human-machine interaction. Traditional designs typically only have a single double door or roller shutter at the rear of the truck body, resulting in narrow passageways for personnel and loading / unloading materials, which is particularly inefficient in narrow alleys, mountainous areas, or nighttime operations. If equipment needs to be accessed from the side, external storage boxes or temporary platforms are often required, which are cumbersome and lack safety.

[0004] Furthermore, existing hatch structures are mostly rigid and closed, lacking effective functional extensions after opening: the footrests have weak load-bearing capacity and cannot serve as stable working platforms; there are no sunshades, rainproof, or insect-proof measures, making it difficult to create a usable semi-outdoor space; during driving, the hatch locking mechanism is unreliable and prone to loosening due to vibration, posing a safety hazard. Although some models are equipped with sunshades or screens, these are mostly independent accessories, inconvenient to store, have low integration, and cannot be linked to the hatch opening and closing actions, resulting in a fragmented user experience.

[0005] Especially in "dual-use" scenarios—that is, serving as a recreational vehicle in normal times and transforming into an emergency support platform in emergencies—existing vehicle compartments struggle to balance sealing, expandability, safety, and comfort. Therefore, there is an urgent need for a multi-functional vehicle compartment system that is compact, integrates functions, and is easy to operate. Summary of the Invention

[0006] In response to the problems raised in the background art, the present invention provides a multi-functional vehicle body based on emergency support and recreational vehicle conversion to solve these problems. The present invention will be further described below.

[0007] This multi-functional vehicle body is based on emergency support and recreational vehicle conversion. It is used for conversion of light truck chassis or small passenger vehicle chassis with a length of less than 6 meters. It includes a vehicle body, and there are three openings in the rear end area of ​​the vehicle body. There is a central opening on the rear end face and a side opening on each of the left and right side walls.

[0008] Preferably, each opening is hinged to an openable panel at its front end, the panel being sized to match the width and height of the corresponding opening and connected to the main body of the carriage via hinges.

[0009] Preferably, the panel is also equipped with a driving device. One end of the driving device is hinged to the main frame of the carriage, and the other end is hinged to the back of the panel. The panel is driven by the driving device to unfold into a sunshade with an adjustable angle of 0-120 degrees. When folded up, it engages and is fixed with the main frame of the carriage to form a stable closed body.

[0010] Preferably, the inner side of the side panel is also provided with an inner panel, which is connected to the main body of the carriage by a hinge. The inner panel can be unfolded into an extension platform, which expands the working surface area of ​​the platform by 70%. An installation area is provided at the upper end of the inner panel along the horizontal direction. This area is divided into two independent installation sections, left and right, by a column. The column is movably set on the inner panel and can be switched between at least two preset positions.

[0011] Preferably, each installation section can be independently equipped with a spun yarn mesh or a transparent window. Specific configurations include the following three modes: Full ventilation mode: Spun yarn mesh is installed on both the left and right sections, forming a ventilated and insect-proof working space with the retracted inner panel; Fully enclosed lighting mode: Transparent windows are installed on both the left and right sections, forming an enclosed and air-conditioned working space with the retracted inner panel; Mixed function mode: Spun yarn mesh is installed on the left side and a transparent window is installed on the right side, or vice versa, forming a space that balances local ventilation and local lighting needs with the retracted inner panel.

[0012] Preferably, the spinning net and the transparent window are detachably fixed to the edge of the corresponding opening section and the side of the column by magnetic attraction.

[0013] Preferably, the column itself can be fixed to the inner panel and the opening on the top of the compartment by magnetic attraction or pin.

[0014] Preferably, chains are provided on the left and right sides of the inner panel, one end of the chain is fixedly connected to the side of the inner panel by a pin or hinge seat, and the other end is hinged to the corresponding side wall of the carriage body.

[0015] Preferably, a sliding groove is provided at the front end of the inner panel, the sliding groove is horizontally opened along the width direction of the inner panel, and a sliding column is slidably connected in the sliding groove. The sliding column can move left and right along the sliding groove. Correspondingly, a socket is provided at a corresponding position on the main body of the carriage on both sides of the opening, and the axis of the socket is aligned with the movement trajectory of the sliding column.

[0016] Preferably, the outer end of the sliding column is fixedly provided with a handle, which protrudes from the surface of the inner panel.

[0017] Beneficial effects: Compared with the prior art, the present invention has three openings at the rear end of the carriage and on the left and right sides, breaking the limitation of the traditional single rear door, significantly improving the efficiency of personnel passage, material loading and unloading and equipment deployment, and can quickly respond to the multi-directional interactive needs of outdoor leisure. Attached Figure Description

[0018] Figure 1 : Schematic diagram of the structure of the present invention;

[0019] In the picture: 1. Main body of the carriage; 2. Opening; 3. Inner panel; 4. Panel; 5. Spinning net; 6. Transparent window; 7. Column. Detailed Implementation

[0020] Next, we will combine the appendix Figure 1 A specific embodiment of the present invention will be described in detail below.

[0021] A multi-functional cargo box based on emergency support and recreational vehicle conversion is used for conversion of light truck chassis with a length of less than 6 meters or small passenger vehicle chassis. The multi-functional cargo box includes a cargo box body 1.

[0022] The main body 1 of the carriage is made of lightweight, high-strength materials (such as aluminum alloy frame + composite panels). There are three openings 2 in the rear area of ​​the main body 1 of the carriage. Specifically, there is a central opening on the rear face and a side opening on each of the left and right side walls, forming a three-way access / operation channel layout of "one rear and two sides". This design breaks the limitation of traditional carriages with only a single rear door, and significantly improves the efficiency and flexibility of personnel entry and exit, material loading and unloading and equipment deployment.

[0023] It should be noted that: the rear end face has a central opening, and the left and right side walls each have a side opening. The height of the openings is the same, and the width of the rear end is smaller than the width of the left and right side walls.

[0024] An openable panel 4 is hinged to the front end of each opening 2. The size of the panel 4 is adapted to the width and height of the corresponding opening 2, and is connected to the main body 1 of the carriage via hinges to achieve smooth opening and closing.

[0025] To achieve convenient and labor-saving opening and closing operations, the side panel 4 is also equipped with a drive device (not shown in the figure). This drive device can be pneumatically driven or hydraulically driven. One end of the drive device is hinged to the inner wall or frame of the main body 1, and the other end is hinged to the back of the side panel 4. Automatic opening and slow closing of the side panel 4 are achieved through pneumatic control. Driven by the drive device, the side panel 4 unfolds into a sun visor with an adjustable angle of 0-120 degrees. When retracted, it engages and is fixed to the frame of the main body 1 (hydraulic tightening) to form a stable, closed compartment, protecting the interior from twisting and deformation during driving.

[0026] An inner panel 3 is also provided on the inner side of the panel 4. It is usually made of a non-slip, high-load-bearing material (such as patterned steel plate, high-density composite board or engineering plastic with reinforcing ribs), and is connected to the main body 1 of the carriage through a hinge to achieve smooth opening and closing.

[0027] The inner panel 3 not only serves as steps or ramps to facilitate the entry and exit of personnel or wheeled equipment (such as stretchers, trolleys, and generators), but more importantly, when unfolded, it is flush with or slightly lower than the floor of the carriage, effectively extending the usable plane at the bottom of the carriage. This visually and functionally extends the interior space of the carriage outward, forming a temporary work platform, rest area, or material transfer area. Furthermore, when the inner panel 3 is folded up, it can serve as a wall panel of the main body 1 of the carriage, forming a ventilated and insect-proof working space with the retractable screen, and a closed and air-conditioned working space with the transparent window.

[0028] In use, the inner panel 3 is first opened upwards by a cylinder, and then the inner panel 3 is unfolded downwards to a horizontal or slightly inclined working position. The inner panel 4 can be used as a sunshade, awning, or temporary roof, and its angle can be adjusted according to the sunlight conditions.

[0029] LED lighting strips, power interfaces, or storage nets can also be integrated into the inner side of panel 4 to further expand its functionality.

[0030] Chains are provided on the left and right sides of the inner panel 3. One end of the chain is fixedly connected to the side of the inner panel 3 by a pin or hinge seat, and the other end is hinged to the corresponding side wall or frame structure of the main body 1 of the carriage, located at an appropriate height below the opening 2.

[0031] When the inner panel 3 is in the retracted state, the chain is in a slack or folded state, which does not affect the sealing closure formed by the panel 4 and the inner panel 3. During use, when the panel 4 is opened, the operator flips the inner panel 3 downward and unfolds it. As the inner panel 3 gradually approaches the horizontal position, the chain is gradually straightened and tightened, eventually forming an oblique bracing structure for the inner panel 3.

[0032] The chain is made of high-strength stainless steel or galvanized alloy, possessing characteristics such as corrosion resistance, fatigue resistance, and maintenance-free operation. The chain length has been optimized through precise mechanical calculations and motion simulation to ensure that the chains on both sides are synchronously stressed and appropriately tensioned when the inner panel 3 is fully deployed. As a flexible transmission / support element, the chain effectively absorbs minor assembly errors and thermal deformation, ensuring the inner panel 3 maintains a stable posture and accurate positioning. The chain is a standard industrial component, readily available in the market, with low procurement costs, and comes in a variety of specifications, facilitating future replacement and upgrades. While ensuring high performance, the overall manufacturing cost of the equipment is also controlled. In summary, this chain not only meets the core requirements of the inner panel 3 deployment mechanism for strength, precision, and durability, but also boasts advantages such as strong environmental adaptability, easy maintenance, and high cost-effectiveness, making it an ideal choice for achieving reliable, stable, and low-cost mechanical linkage.

[0033] In some embodiments, the chain can be replaced with a wire rope, a linkage mechanism, or a damped telescopic support rod to adapt to different load levels and spatial layout requirements.

[0034] A sliding groove is provided at the front end of the inner panel 3 (i.e., the end away from the hinge side), and the sliding groove is horizontally opened along the width direction of the inner panel. A sliding column is slidably connected in the sliding groove, and the sliding column can move left and right along the sliding groove. Correspondingly, on the main body 1 of the carriage on both sides of the opening 2, there are corresponding insertion holes, and the axis of the insertion holes is aligned with the movement trajectory of the sliding column.

[0035] When the inner panel 3 is flipped up until it is fully retracted and fits against the main body 1 of the carriage, the operator can push the sliding column to make it slide out laterally from the sliding groove and simultaneously insert it into the insertion holes on the left and right sides, thereby achieving bidirectional mechanical locking of the inner panel 3 in the closed position.

[0036] To further enhance ease of operation, a handle is fixedly provided at the outer end of the sliding column. The handle protrudes from the surface of the inner panel, making it easy for the user to grip and apply force for quick unlocking or locking. Preferably, the handle is covered with non-slip rubber or has a grooved texture, allowing for easy operation even when wearing gloves or in rainy conditions.

[0037] In addition, to enhance locking reliability, an elastic buckle or magnetic positioning structure can be set on the contact surface between the slide column and the insertion hole, so that the slide column 7 automatically "clicks" into position after being fully inserted, preventing it from coming loose; at the same time, a reset spring can be installed in the sliding groove, so that when the handle is released, the slide column automatically retracts into the groove, making it easy for the inner panel 3 to be opened next time.

[0038] An installation area is provided at the upper end of the inner panel 3 along the horizontal direction. This area is divided into two independent installation sections, left and right, by a column 7. The column 7 is movably set on the inner panel 3 and can switch between at least two preset positions (for example, located at 1 / 3 or 2 / 3 of the width of the inner panel), thereby flexibly adjusting the relative size of the left and right sections.

[0039] Each installation section can be independently equipped with either a spinning net 5 or a transparent window 6. Specific configurations include, but are not limited to, the following three modes:

[0040] (1) Full ventilation mode: Spinning nets 5 are installed on both the left and right sections to achieve maximum natural ventilation. It is suitable for high-temperature seasons or working environments that require air circulation. Together with the retracted inner panel 3, it forms a ventilated and insect-proof working space.

[0041] (2) Fully enclosed lighting mode: Transparent windows 6 are installed on both the left and right sides to form a continuous and transparent visual interface, which facilitates lighting and observation. Together with the retracted inner panel 3, it forms an enclosed air-conditioned working space.

[0042] (3) Mixed function mode: the spinning net 5 is installed on the left and the transparent window 6 is installed on the right, or vice versa, forming a combination of local ventilation and local lighting needs with the retracted inner panel 3.

[0043] Both the spinning net 5 and the transparent window 6 are detachably fixed to the edge of the corresponding opening section and the side of the column 7 by magnetic attraction. The magnetic structure can use embedded permanent magnets in conjunction with the metal frame to ensure a firm connection and good sealing, while also allowing users to quickly replace components by hand without tools.

[0044] Furthermore, the column 7 itself can be fixed to the inner panel 3 and the opening 2 on the top of the compartment by magnetic attraction or pin, ensuring the stability of the overall structure under different configurations.

[0045] The inner panel 3 unfolds into an extended platform, increasing the working area of ​​the platform by more than 70%; when folded up, it becomes the wall of an enclosed space, forming a ventilated and insect-proof working space with the spinning net, and an enclosed and air-conditioned working space with the transparent window.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-functional vehicle body based on emergency support and recreational vehicle conversion, characterized in that: For conversion of light truck chassis or small passenger vehicle chassis with a length of less than 6 meters, including a body (1), three openings (2) are provided in the rear end area of ​​the body (1), with a central opening on the rear end face and a side opening on each of the left and right side walls.

2. The multi-functional vehicle body based on emergency support and recreational vehicle conversion as described in claim 1, characterized in that: An openable panel (4) is hinged to the front end of each opening (2). The size of the panel (4) is adapted to the width and height of the corresponding opening (2) and is connected to the main body of the carriage (1) by a hinge.

3. The multi-functional carriage based on emergency support and recreational vehicle conversion as described in claim 2, characterized in that: The panel (4) is also equipped with a driving device. One end of the driving device is hinged to the frame of the main body (1) of the carriage, and the other end is hinged to the back of the panel (4). The panel (4) is driven by the driving device. When unfolded, it is a sunshade with an adjustable angle of 0-120 degrees. When folded up, it is engaged and fixed with the frame of the main body (1) of the carriage to form a stable closed body.

4. The multi-functional carriage based on emergency support and recreational vehicle conversion as described in claim 3, characterized in that: The inner side of the panel (4) is also provided with an inner panel (3), which is connected to the main body of the carriage (1) by a hinge. The inner panel (3) unfolds into an extension platform, which expands the working surface area of ​​the platform by 70%. An installation area is provided at the upper end of the inner panel (3) along the horizontal direction. This area is divided into two independent installation sections, left and right, by a column (7). The column (7) is movably set on the inner panel (3) and can be switched between at least two preset positions.

5. The multi-functional carriage based on emergency support and recreational vehicle conversion as described in claim 4, characterized in that: Each installation section is independently equipped with a spinning net (5) or a transparent window (6). The specific configuration includes the following three modes: Full ventilation mode: both the left and right sections are equipped with spinning nets (5), which together with the retracted inner panel (3) form a ventilation and insect prevention working space; Fully enclosed lighting mode: both the left and right sections are equipped with transparent windows (6), which together with the retracted inner panel (3) form an enclosed air-conditioned working space; Mixed function mode: the left side is equipped with spinning nets (5) and the right side is equipped with transparent windows (6), or vice versa, which together with the retracted inner panel (3) form a combination of local ventilation and local lighting needs.

6. The multi-functional carriage based on emergency support and recreational vehicle conversion as described in claim 5, characterized in that: The spinning net (5) and the transparent window (6) are detachably fixed to the edge of the corresponding opening section and the side of the column (7) by magnetic attraction.

7. The multi-functional carriage based on emergency support and recreational vehicle conversion as described in claim 6, characterized in that: The column (7) itself is fixed to the inner panel (3) and the opening (2) on the top of the compartment by magnetic attraction or pin.

8. The multi-functional vehicle body based on emergency support and recreational vehicle conversion as described in claim 7, characterized in that: Chains are provided on the left and right sides of the inner panel (3). One end of the chain is fixedly connected to the side of the inner panel (3) through a pin or hinge seat, and the other end is hinged to the corresponding side wall of the carriage body (1).

9. The multi-functional carriage based on emergency support and recreational vehicle conversion as described in claim 8, characterized in that: A sliding groove is provided at the front end of the inner panel (3). The sliding groove is opened horizontally along the width direction of the inner panel (3). A sliding column is slidably connected in the sliding groove. The sliding column moves left and right along the sliding groove. Correspondingly, a socket is provided at the corresponding position on the main body (1) of the carriage on both sides of the opening (2). The axis of the socket is aligned with the movement trajectory of the sliding column.

10. The multi-functional carriage based on emergency support and recreational vehicle conversion according to claim 9, characterized in that: A handle is fixedly provided at the outer end of the sliding column, and the handle protrudes from the surface of the inner panel.

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