Aluminum alloy flat carriage

Abstract

The utility model discloses an aluminum alloy flat carriage which comprises a planar aluminum alloy carriage bottom plate assembly formed by mutually and independently splicing modular parts, aluminum alloy frame assemblies installed on the outer side of the periphery of the aluminum alloy carriage bottom plate assembly, and aluminum alloy frame corner wrapping pieces installed at the four corners of the aluminum alloy frame assemblies. The modular parts are a plurality of strip-shaped bottom plates which are sequentially connected and spliced. The aluminum alloy frame assembly comprises an aluminum alloy front frame strip, an aluminum alloy rear frame strip, an aluminum alloy left frame strip and an aluminum alloy right frame strip. The aluminum alloy front frame strip and the aluminum alloy rear frame strip are each provided with a limiting protruding rib which protrudes upwards and is used for limiting installation of the movable carriage. The aluminum alloy flat carriage has the advantages of being light in weight, oil-saving, environment-friendly, corrosion-resistant, convenient to maintain, convenient to expand and install, safe, practical and the like, and the installation reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy carriages, in particular to an aluminum alloy flatbed carriage. Background Art

[0002] At present, the flatbed carriages used in automobiles on the market are basically flatbed carriages with a steel structure, and there are few aluminum alloy flatbed carriages with a lighter mass. Compared with the traditional flatbed carriage with a steel structure, the aluminum alloy flatbed carriage has more advantages in many aspects. For example, the aluminum alloy flatbed carriage is lighter in weight. Compared with a steel flatbed carriage of the same size, the weight is reduced by about 40%, saving 0.42 liters of fuel per 100 kilometers, and being more energy-saving and environmentally friendly. Data shows that about 13.5 kwh of electricity is required to extract 1 kg of primary aluminum, but in automobile manufacturing, every 1 kg of aluminum used can replace 3 kg of steel. Saving 1 kg of material during the service life of an automobile can save 0.7 kg of fuel, which is equivalent to saving 12,800 kwh of electricity and reducing carbon dioxide emissions by about 2,670 kg, with an energy-saving effect nearly 100 times that of the original. In addition, since the flatbed carriage with a steel structure mostly adopts a frame structure to form the bottom plate, then uses square tubes arranged vertically and horizontally for welding and forming, and then lays steel plates to form the overall flatbed carriage structure. When using an aluminum alloy flatbed carriage of the same specification, under the same specification comparison, due to the net weight of the aluminum alloy flatbed carriage being lighter than that of the flatbed carriage with a steel structure, the loading capacity of the aluminum alloy flatbed carriage is larger than that of the flatbed carriage with a steel structure when fully loaded, and the utilization rate of the goods carried is higher.

[0003] In addition, there are some problems with traditional flatbed carriages, which are as follows: (1) The corrosion resistance of traditional steel structure carriages is poor. Since the steel structure carriages form a paint layer by traditional spraying, when the paint layer falls off, the surface will quickly oxidize and rust, seriously affecting the service life. Maintenance such as repainting and repair welding is often required, resulting in high maintenance costs. Moreover, since the paint layer is often rubbed when carrying goods, it is easy to rub and scratch the surface of the paint layer, causing the surface coating to fall off and resulting in corrosion. All these reasons lead to poor corrosion resistance of steel structure carriages. (2) Since the components of steel structure carriages are basically assembled or installed by welding or riveting processes, when a component is damaged, maintenance and repair are very inconvenient, the replacement is difficult, and it is not convenient to replace parts. Even some components cannot be replaced, and the entire steel structure carriage needs to be replaced as a whole. (3) Most traditional flatbed carriages on the market do not have fences. When consumers need to install a pickup truck canopy (a sealed and openable vehicle carriage, abbreviated as canopy in the industry) on a pickup truck, they only fix the canopy on the flatbed carriage, and the connection between the flatbed carriage and the canopy is not aesthetically pleasing. In addition, since there is no limiting structure around the flatbed carriage, the canopy is prone to displacement when the vehicle jolts during driving, posing a certain safety hazard. (4) There is no protective fence around the bottom plate of the existing traditional flatbed carriages on the market. During driving, the goods placed on the flatbed carriage are prone to displacement and falling, posing a certain safety hazard. (5) When the existing traditional flatbed carriages on the market are assembled by riveting, most of them use rivets or hexagon socket head cap screws for assembly, which is not aesthetically pleasing, and the heads of the rivets and bolts protrude from the top surface of the bottom plate of the flatbed carriage. When installing the canopy, the canopy will be lifted to form a suspended state, resulting in a small contact area between the canopy and the bottom plate of the flatbed carriage, and a large pressure at each contact point, which is likely to cause deformation of the canopy.

[0004] Therefore, it is necessary to make certain improvements to the flatbed carriage structure of the existing technology to address the problems of the existing technology, and to develop an aluminum alloy flatbed carriage that is strong, lightweight, corrosion-resistant, durable, and has improved usage safety. Summary of the Invention

[0005] The purpose of the present utility model is to overcome the above-mentioned disadvantages of the prior art and provide an aluminum alloy flatbed carriage. This aluminum alloy flatbed carriage is made of high-strength aluminum alloy material, has the advantages of light weight and durability, and can reduce the weight of the overall flatbed carriage; the overall structure is corrosion-resistant and does not rust. The accessories of the entire aluminum alloy flatbed carriage basically adopt a silver-white oxidation surface treatment process to form an oxide film with a thickness of 8-10 μm. The surface has high hardness and strong corrosion resistance, and basically eliminates the maintenance cost. The service life is 5-10 years longer than that of traditional steel carriages. Since there is an oxide film on the surface of the aluminum alloy flatbed carriage, even if it is scratched by friction, it will not corrode the interior; the bottom plate of the aluminum alloy flatbed carriage adopts a modular component design for assembly. When damaged, the individual modular components can be replaced separately, which is convenient for maintenance; a limiting rib is provided on the bottom plate to cooperate with the installation of the canopy to play a limiting role, improving the reliability and safety of the installation of the canopy and the like.

[0006] The technical solution adopted by the present utility model to solve its technical problems is: an aluminum alloy flatbed carriage, including an aluminum alloy carriage bottom plate assembly formed by independently assembling modular components into a planar shape, an aluminum alloy frame assembly installed on the outer sides around the aluminum alloy carriage bottom plate assembly, and aluminum alloy frame corner pieces installed at the four corners of the aluminum alloy frame assembly.

[0007] The modular component is a plurality of sequentially connected and assembled strip-shaped bottom plates.

[0008] The aluminum alloy frame assembly includes an aluminum alloy front frame bar that forms a planar connection and assembly with the front end of the aluminum alloy frame assembly, an aluminum alloy rear frame bar that forms a planar connection and assembly with the rear end of the aluminum alloy frame assembly, an aluminum alloy left frame bar installed and connected to the left side of the aluminum alloy frame assembly, and an aluminum alloy right frame bar installed and connected to the right side of the aluminum alloy frame assembly.

[0009] The aluminum alloy front frame bar and the aluminum alloy rear frame bar are both provided with upward protrusions for limiting the installation of the movable carriage.

[0010] Furthermore, the aluminum alloy left frame bar and the aluminum alloy right frame bar are both installed and connected to the two ends of each strip-shaped bottom plate and the two of the aluminum alloy front frame bar and the aluminum alloy rear frame bar through internal hexagonal countersunk head bolts; the bolt heads of the internal hexagonal countersunk head bolts are flush with the bottom plate surfaces of the aluminum alloy left frame bar and the aluminum alloy right frame bar or sink below the bottom plate surfaces of the aluminum alloy left frame bar and the aluminum alloy right frame bar.

[0011] Furthermore, the aluminum alloy front frame bar, the aluminum alloy rear frame bar, the aluminum alloy left frame bar, and the aluminum alloy right frame bar are all L-shaped and are installed corresponding to each other to form a square structure surrounding the aluminum alloy carriage bottom plate assembly.

[0012] Furthermore, the aluminum alloy frame corner piece is right-angled and fixedly installed and connected to the corner of the aluminum alloy frame assembly through rivets. The top of the corner of the aluminum alloy frame is higher than the top of the aluminum alloy frame assembly.

[0013] Furthermore, the surfaces of the aluminum alloy carriage floor assembly, the aluminum alloy frame assembly, and the aluminum alloy frame corner piece all adopt a silver-white oxidation surface treatment process to form an oxide film with a thickness of 8 - 10 μm.

[0014] Furthermore, the bottom of the movable carriage is provided with a limit groove for fitting and installing with the limit rib.

[0015] Furthermore, the movable carriage is any one of a pickup truck carriage, a toolbox, and a recreational vehicle carriage.

[0016] Furthermore, a reinforcing plate strip for strengthening the bearing capacity is also arranged at the bottom of the aluminum alloy carriage floor assembly.

[0017] In summary, the aluminum alloy flatbed carriage of the present utility model is made of high-strength aluminum alloy material, has the advantages of light weight and being durable, and can reduce the weight of the overall flatbed carriage; the overall structure has the characteristics of corrosion resistance and non-rusting. The accessories of the entire aluminum alloy flatbed carriage basically adopt a silver-white oxidation surface treatment process to form an oxide film with a thickness of 8 - 10 μm, with high surface hardness and strong corrosion resistance, and basically can eliminate the maintenance cost. The service life is 5 - 10 years longer than that of traditional steel carriages. Since there is an oxide film on the surface of the aluminum alloy flatbed carriage, even if it is scratched by friction, it will not corrode the interior; the bottom plate of the aluminum alloy flatbed carriage is designed and assembled with modular components. If damaged, the individual modular components can be replaced separately, which is convenient for maintenance; limit ribs are provided on the bottom plate to cooperate with the installation of the canopy to play a limiting role, improving the reliability and safety of the installation of the canopy, etc.

[0018] Compared with the carriages of the prior art, the aluminum alloy flatbed carriage has the following advantages:

[0019] (1) The aluminum alloy flatbed carriage is light in weight, fuel-saving and environmentally friendly;

[0020] (2) The aluminum alloy flatbed carriage adopts a silver-white oxidation process to form an oxide film, with good corrosion resistance;

[0021] (3) The aluminum alloy flatbed carriage is simple to assemble, designed and assembled with modular components, and the modular components can be replaced separately, which is convenient for maintenance;

[0022] (4) The aluminum alloy flatbed carriage is assembled with internal hexagon countersunk head bolts. The surface of the bottom plate of the product is flat, without bolt heads protruding, which is convenient for installing the canopy, etc. during expansion installation;

[0023] (5) The four sides of the aluminum alloy flatbed carriage are designed with limiting ribs, etc., which can cooperate with the canopy, etc. during extended installation to play a limiting role, improve the reliability of the canopy installation, and be safer and more practical. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of an aluminum alloy flatbed carriage of the present utility model;

[0025] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0026] Figure 3 is a top view schematic diagram of an aluminum alloy flatbed carriage of the present utility model;

[0027] Figure 4 is a partial perspective schematic diagram in the front view direction of an aluminum alloy flatbed carriage of the present utility model;

[0028] Figure 5 is Figure 4 an enlarged schematic view of part B in

[0029] Figure 6 is Figure 4 an enlarged schematic view of part C in

[0030] Figure 7 is a partial perspective schematic diagram in the right view direction of an aluminum alloy flatbed carriage of the present utility model;

[0031] Figure 8 is Figure 7 an enlarged schematic view of part D in

[0032] Figure 9 is Figure 7 an enlarged schematic view of part E in

[0033] Figure 10 is a schematic structural diagram of a hexagon socket countersunk head bolt;

[0034] Figure 11 is a front view schematic diagram of the extended application of an aluminum alloy flatbed carriage of the present utility model for installing a pickup truck carriage;

[0035] Figure 12 is a top view schematic diagram of the extended application of an aluminum alloy flatbed carriage of the present utility model for installing a pickup truck carriage;

[0036] Figure 13 is a right view schematic diagram of the extended application of an aluminum alloy flatbed carriage of the present utility model for installing a pickup truck carriage;

[0037] The markings in the attached drawings are as follows: 1. Aluminum alloy carriage floor assembly; 2. Aluminum alloy frame assembly; 3. Aluminum alloy frame corner piece; 4. Strip-shaped floor; 5. Aluminum alloy front frame bar; 6. Aluminum alloy rear frame bar; 7. Aluminum alloy left frame bar; 8. Aluminum alloy right frame bar; 9. Limit rib; 10. Hexagon socket countersunk head bolt; 11. Rivet; 12. Movable carriage; 13. Reinforcing bar strip. Detailed implementation mode

[0038] Embodiment 1

[0039] An aluminum alloy flatbed carriage described in this Embodiment 1, as Figure 1 shown, includes an aluminum alloy carriage floor assembly 1 formed by independently assembling modular components into a planar shape, an aluminum alloy frame assembly 2 installed on the outer sides around the aluminum alloy carriage floor assembly, and an aluminum alloy frame corner piece 3 installed at the four corner positions of the aluminum alloy frame assembly. This aluminum alloy flatbed carriage is composed of three major components: the aluminum alloy carriage floor assembly, the aluminum alloy frame assembly, and the aluminum alloy frame corner piece. Among them, the aluminum alloy carriage floor assembly is formed by closely laying multiple modular components in sequence to form a square shape with a flat top surface. The modular components can be spliced with each other to form disassembly and assembly, and damaged modular components can be replaced and repaired at any time; the aluminum alloy frame assembly serves as the frame of the aluminum alloy carriage floor assembly and surrounds the side surfaces of the aluminum alloy carriage floor assembly. The height of the aluminum alloy frame assembly is higher than that of the aluminum alloy carriage floor assembly and is used as a guardrail to prevent falling when carrying goods. The aluminum alloy frame corner piece is used to tightly fix and connect the four corner positions of the aluminum alloy frame assembly, achieving the effect of protecting the four corners of the aluminum alloy frame assembly and strengthening the stability of the stable connection at the four corners.

[0040] In this Embodiment 1, the modular components are multiple strip-shaped floors 4 connected and assembled in sequence. The strip-shaped floors are very convenient for disassembly and assembly. During installation, they can be arranged and aligned in sequence to form a splicing installation, and with unified specifications and dimensions, a seamless installation effect can be formed during disassembly and replacement, and the operation is simple.

[0041] In this Embodiment 1, as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the aluminum alloy frame assembly includes an aluminum alloy front frame bar 5 connected and assembled with the front end of the aluminum alloy frame assembly to form a plane, an aluminum alloy rear frame bar 6 connected and assembled with the rear end of the aluminum alloy frame assembly to form a plane, an aluminum alloy left frame bar 7 installed and connected with the left side of the aluminum alloy frame assembly, and an aluminum alloy right frame bar 8 installed and connected with the right side of the aluminum alloy frame assembly. The aluminum alloy frame assembly is composed of four frames to form a square frame structure, which are respectively arranged in the front, back, left and right directions and tightly wrap the aluminum alloy car bottom plate assembly for protection.

[0042] In this embodiment 1, Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 11 , Figure 12 and Figure 13 As shown, the aluminum alloy front frame bar and the aluminum alloy rear frame bar are both provided with a limit convex rib 9 that protrudes upwards for limiting the installation of the movable carriage 12. In addition to being used as a flatbed truck for transportation, the aluminum alloy flatbed carriage can also be used for other expansion purposes, such as installing some movable carriages (carriage bodies with door opening structures, box-like structures, etc.) for expansion activities. When these movable carriages need to be installed, a raised limit convex rib is set on the plane of the aluminum alloy front frame bar and the aluminum alloy rear frame bar to cooperate with the movable carriage, and the corresponding position of the bottom of the movable carriage is completely embedded in the limit convex rib, which can well position and clamp the bottom of the movable carriage to form a good limiting effect, and the four frames of the aluminum alloy frame assembly can also be used as limit fences and other functions to limit the bottom outer side of the movable carriage, forming a good limiting effect, preventing the movable carriage from shifting, ensuring that the movable carriage does not shift during the vehicle's driving, and being safer and more reliable, improving the expansion performance of the aluminum alloy flatbed carriage.

[0043] In this embodiment 1, Figure 1 and Figure 10 As shown, the aluminum alloy left frame bar and the aluminum alloy right frame bar are both connected to the two ends of each strip bottom plate and the two ends of the aluminum alloy front frame bar and the aluminum alloy rear frame bar through the hexagon socket countersunk bolts 10; the bolt heads of the hexagon socket countersunk bolts are flush with the bottom plate surface of the aluminum alloy left frame bar and the aluminum alloy right frame bar or sink below the bottom plate surface of the aluminum alloy left frame bar and the aluminum alloy right frame bar. When the aluminum alloy flatbed carriage is installed using the hexagon socket countersunk bolts, the bolt heads are flush with the bottom plate surface of the aluminum alloy left frame bar and the aluminum alloy right frame bar, and do not protrude from the bottom plate surface of the aluminum alloy left frame bar and the aluminum alloy right frame bar; when installing the movable carriage, the bolt heads will not support the bottom surface of the movable carriage, and the movable carriage can completely fall to the upper surface of the aluminum alloy carriage bottom plate assembly, with a larger contact area, which is safer and more reliable.

[0044] In this Embodiment 1, the aluminum alloy front frame bar, the aluminum alloy rear frame bar, the aluminum alloy left frame bar, and the aluminum alloy right frame bar are all L-shaped and are installed corresponding to each other to form a square structure surrounding the aluminum alloy carriage floor assembly. Each frame bar is L-shaped, which can play the role of protective limit of the guardrail and the role of flat contact installation.

[0045] In this Embodiment 1, the aluminum alloy frame corner fitting is right-angled and is fixedly installed and connected to the corner of the aluminum alloy frame assembly through the rivet 11. The top of the aluminum alloy frame corner is higher than the top of the aluminum alloy frame assembly. The right-angled shape of the aluminum alloy frame corner fitting can well wrap and fit tightly the corner of the aluminum alloy frame assembly to form a tight installation, and the fixation of the corner and the aluminum alloy frame corner fitting is realized through the rivet.

[0046] In this Embodiment 1, the surfaces of the aluminum alloy carriage floor assembly, the aluminum alloy frame assembly, and the aluminum alloy frame corner fitting all adopt a silver-white oxidation surface treatment process to form an oxide film with a thickness of 8 - 10 um. The formation and thickness setting of the oxide film can well improve the corrosion resistance of the entire aluminum alloy flatbed carriage, not easy to rust, etc., can be suitable for a variety of cargo-carrying uses, and can improve the service life of the overall aluminum alloy flatbed carriage.

[0047] In this Embodiment 1, a limit groove (not shown in the figure) for fitting and installing with the limit rib is provided at the bottom of the movable carriage. This limit groove forms a matching installation with the limit rib. When the movable carriage is extended and installed on the aluminum alloy carriage floor assembly, the limit rib will correspondingly be embedded in the limit groove to form a good limit effect, ensuring that the movable carriage will not easily shift.

[0048] In this Embodiment 1, the movable carriage is any one of a pickup truck carriage, a toolbox, and a recreational vehicle carriage. When the aluminum alloy flatbed carriage is extended and installed, it can be extended and installed with a pickup truck carriage (canopy), a toolbox, a recreational vehicle carriage, etc., to improve the expandability of the aluminum alloy flatbed carriage.

[0049] In this Embodiment 1, a reinforcing plate bar 13 for strengthening the bearing capacity is further provided at the bottom of the aluminum alloy carriage floor assembly. In order to strengthen the bearing capacity and strength at the bottom of the aluminum alloy carriage floor assembly, setting the reinforcing plate bar can improve the bottom strength of the aluminum alloy carriage floor assembly and is not easy to deform.

[0050] In Embodiment 1 of the present invention, the aluminum alloy flatbed carriage is made of high-strength aluminum alloy material, which has the advantages of light weight and durability, and can reduce the weight of the overall flatbed carriage. The overall structure is corrosion-resistant and does not rust. The accessories of the entire aluminum alloy flatbed carriage are basically treated with a silver-white oxidation surface treatment process to form an oxide film with a thickness of 8-10 μm. The surface has high hardness and strong corrosion resistance, and basically eliminates the maintenance cost. The service life is 5-10 years longer than that of traditional steel carriages. Since there is an oxide film on the surface of the aluminum alloy flatbed carriage, even if it is scratched by friction, it will not corrode the interior. The bottom plate of the aluminum alloy flatbed carriage is assembled using a modular component design. If damaged, the individual modular components can be replaced separately, which is convenient for maintenance. Limit ribs are provided on the bottom plate to play a limiting role when cooperating with the installation of the canopy, etc., improving the reliability and safety of the installation of the canopy and the like.

[0051] In Embodiment 1 of the present invention, compared with the carriages of the prior art, the aluminum alloy flatbed carriage has the following advantages:

[0052] (1) The aluminum alloy flatbed carriage is light in weight, fuel-saving and environmentally friendly;

[0053] (2) The aluminum alloy flatbed carriage is treated with a silver-white oxidation process to form an oxide film, which has good corrosion resistance;

[0054] (3) The aluminum alloy flatbed carriage is simple to assemble. It is assembled using a modular component design, and the modular components can be replaced separately, which is convenient for maintenance;

[0055] (4) The aluminum alloy flatbed carriage is assembled using hexagon socket countersunk head bolts. The surface of the bottom plate of the product is flat, without bolt heads protruding, which is convenient for installing the canopy and the like during extended installation;

[0056] (5) The aluminum alloy flatbed carriage is designed with limit ribs and the like around it, which can cooperate with the canopy and the like during extended installation to play a limiting role, improving the reliability of the canopy installation and being safer and more practical.

[0057] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the structure of the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An aluminum alloy flatbed carriage, characterized in that: It comprises an aluminum alloy carriage floor assembly (1) formed into a plane shape by independently assembling modular components, an aluminum alloy frame assembly (2) installed on the outer sides of the aluminum alloy carriage floor assembly, and aluminum alloy frame corner pieces (3) installed at the four corners of the aluminum alloy frame assembly; The modular components are a plurality of strip-shaped bottom plates (4) which are connected and assembled in sequence; The aluminum alloy frame assembly comprises an aluminum alloy front frame bar (5) connected and assembled with the front end of the aluminum alloy frame assembly in a plane, an aluminum alloy rear frame bar (6) connected and assembled with the rear end of the aluminum alloy frame assembly in a plane, an aluminum alloy left frame bar (7) connected and installed with the left side of the aluminum alloy frame assembly, and an aluminum alloy right frame bar (8) connected and installed with the right side of the aluminum alloy frame assembly; The aluminum alloy front frame bar and the aluminum alloy rear frame bar are both provided with upwardly protruding limiting ribs (9) for installing the limiting movable carriage (12).

2. The aluminum alloy flatbed carriage according to claim 1, characterized in that: The aluminum alloy left frame bar and the aluminum alloy right frame bar are both connected to the two ends of each strip bottom plate and the two ends of the aluminum alloy front frame bar and the aluminum alloy rear frame bar through hexagon socket countersunk bolts (10); the bolt heads of the hexagon socket countersunk bolts are flush with the bottom plate surfaces of the aluminum alloy left frame bar and the aluminum alloy right frame bar or are sunken below the bottom plate surfaces of the aluminum alloy left frame bar and the aluminum alloy right frame bar.

3. The aluminum alloy flatbed carriage according to claim 2, characterized in that: The aluminum alloy front frame bar, aluminum alloy rear frame bar, aluminum alloy left frame bar and aluminum alloy right frame bar are all L-shaped and are installed corresponding to each other to form a square frame structure arranged around the aluminum alloy car body bottom plate assembly.

4. The aluminum alloy flatbed carriage according to claim 3, characterized in that: The aluminum alloy frame corner piece is right-angled and is fixedly connected to the corner of the aluminum alloy frame assembly through rivets (11), and the top of the aluminum alloy frame corner is higher than the top of the aluminum alloy frame assembly.

5. The aluminum alloy flatbed carriage according to claim 4, characterized in that: The surfaces of the aluminum alloy carriage floor assembly, the aluminum alloy frame assembly and the aluminum alloy frame corner pieces are all treated with a silver-white oxidation surface treatment process to form an oxide film with a thickness of 8-10 um.

6. The aluminum alloy flatbed carriage according to claim 5, characterized in that: The bottom of the movable carriage is provided with a limiting groove which is installed in cooperation with the limiting convex rib.

7. The aluminum alloy flatbed carriage according to claim 6, characterized in that: The movable carriage is any one of a pickup truck carriage, a tool box, and a motorhome carriage.

8. The aluminum alloy flatbed carriage according to claim 7, characterized in that: A reinforcing strip (13) is also provided at the bottom of the aluminum alloy carriage floor assembly to enhance the supporting load-bearing capacity.

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