A vehicle and method of assembling a cargo box and roof assembly thereof

Abstract

The application discloses a vehicle, a cargo compartment and a roof assembly and an assembling method thereof, the roof assembly comprising a roof plate, a first bending piece, a second bending piece, a third bending piece, a tail plate, a first metal edge cover, a second metal edge cover and a third metal edge cover, the first bending piece and the second bending piece are arranged on the left side and the right side of the roof plate respectively, the third bending piece is arranged on the front side of the roof plate, there are grooves between the first bending piece, the second bending piece, the third bending piece and the lower surface of the roof plate, the lower part of the left end and the right end of the third bending piece is respectively provided with an angle column, the tail plate is located above the roof plate, the front side of the tail plate is fixedly connected with the roof plate, and the rear side of the tail plate protrudes rearward from the roof plate; the first metal edge cover, the second metal edge cover and the third metal edge cover are all L-shaped metal edge covers, and the roof plate is a light composite board. In the technical scheme, the waterproof sealing performance of the roof assembly is good, the overall quality is relatively light, and the assembly is accurate and fast.

Description

Technical Field

[0001] This invention relates to the technical field of logistics, and more particularly to a vehicle and its cargo box and roof assembly and assembly method. Background Technology

[0002] Logistics refers to the entire process of planning, implementing, and managing the movement of raw materials, semi-finished products, finished products, or related information from the point of origin to the point of consumption, through transportation, storage, and distribution, in order to meet customer needs at the lowest possible cost. With the continuous development of the social economy and the gradual formation of economic globalization, the modern logistics industry plays a crucial role and is also an important service industry driving economic globalization.

[0003] Cargo containers are an indispensable part of modern logistics. Their large capacity allows for the loading of a variety of diverse items at once, improving the efficiency of each shipment. Cargo containers typically consist of a top panel, side panels, front panel, and rear door. In most commercially available containers, the components are welded together, making them non-disassemblyable. Therefore, they can only be shipped empty.

[0004] Patent application CN217478051U discloses a modular shipping container, comprising an overall frame, a floor, and composite material panels. Adjacent composite material panels are connected to corresponding connecting steel plates by riveting or screwing. However, this container has the following problems: 1. Its overall frame is not detachable, which is not conducive to export transportation; 2. Its roof is constructed by splicing multiple composite material panels, resulting in poor roof strength and gaps between the composite material panels, leading to poor waterproofing and sealing; 3. The screws or rivets are exposed, resulting in a less than aesthetically pleasing overall appearance; 4. The connection position of the composite material panels to the connecting steel plates requires high precision, and the installation requirements are also high. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the purpose of this invention is to provide a vehicle, its cargo box and roof assembly, and an assembly method thereof. The roof assembly has good waterproof sealing performance, is lightweight, and can be assembled accurately and quickly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cargo box roof assembly includes a roof plate, a first bent component, a second bent component, a third bent component, a tail plate, a first metal edging, a second metal edging, and a third metal edging. The first bent component, the second bent component, and the third bent component are fixedly connected. The first bent component and the second bent component are respectively disposed on the left and right sides of the roof plate, and the third bent component is disposed on the front side of the roof plate. The inner sides of the first bent component, the second bent component, and the third bent component are all bent and fixed to the lower surface of the roof plate by fasteners. Grooves exist between the first bent component, the second bent component, and the third bent component and the lower surface of the roof plate. A vertical angle post is respectively provided at the lower part of the left and right ends of the third bent component. The tail plate is located above the roof plate. The front side of the tail plate is fixedly connected to the top plate, and the rear side of the tail plate protrudes backward from the top plate; the first metal edging, the second metal edging, and the third metal edging are all L-shaped metal edgings. One side of the first metal edging is fixedly connected to the outer side of the first bent piece, and the other side of the first metal edging is fixedly connected to the upper surface of the top plate by fasteners. One side of the second metal edging is fixedly connected to the outer side of the second bent piece, and the other side of the second metal edging is fixedly connected to the upper surface of the top plate by fasteners. One side of the third metal edging is fixedly connected to the front side of the third bent piece, and the other side of the third metal edging is fixedly connected to the upper surface of the top plate by fasteners. The top plate is a lightweight composite board.

[0008] The lightweight composite panel is made of PP honeycomb panels. PP honeycomb panels solve a series of prominent problems existing in traditional logistics containers. Unlike the top panels made of traditional corrugated panels, the top panel in this invention uses a single piece of lightweight composite panel. This reduces the overall weight of the container while further improving its compressive strength, facilitating assembly, reducing seams, enhancing the container's airtightness, and preventing external rainwater and salt water from seeping into the container. Furthermore, based on the characteristics of PP honeycomb panels, the container itself is not easily corroded, and the internal insulation effect is good, making it less susceptible to interference from the external environment. By setting grooves between the top frame and the top panel, a small amount of rainwater can be accumulated, further preventing rainwater from entering the container.

[0009] Preferably, the first bending member includes a first connecting surface, a second connecting surface, a third connecting surface, and a fourth connecting surface. The first connecting surface and the third connecting surface are vertically arranged, with the first connecting surface located outside the third connecting surface. The second connecting surface and the fourth connecting surface are horizontally arranged. The lower ends of the first connecting surface and the lower ends of the third connecting surface are connected through the second connecting surface. The outer end of the fourth connecting surface is connected to the upper end of the third connecting surface. The first connecting surface is fixedly connected to the first metal edging. The fourth connecting surface is fixed to the lower surface of the top plate by fasteners.

[0010] Preferably, the second bending member includes a fifth connecting surface, a sixth connecting surface, a seventh connecting surface, and an eighth connecting surface. The fifth and seventh connecting surfaces are vertically arranged, with the fifth connecting surface located outside the seventh connecting surface. The sixth and eighth connecting surfaces are horizontally arranged. The lower end of the fifth connecting surface and the lower end of the seventh connecting surface are connected through the sixth connecting surface. The outer end of the eighth connecting surface is connected to the upper end of the seventh connecting surface. The fifth connecting surface is fixedly connected to the second metal edging, and the eighth connecting surface is fixed to the lower surface of the top plate by fasteners.

[0011] Preferably, the third bending component includes a ninth connecting surface, a tenth connecting surface, an eleventh connecting surface, and a twelfth connecting surface. The ninth and eleventh connecting surfaces are vertically arranged, with the ninth connecting surface located outside the eleventh connecting surface. The tenth and twelfth connecting surfaces are horizontally arranged. The lower ends of the ninth and eleventh connecting surfaces are connected through the tenth connecting surface. The outer end of the twelfth connecting surface is connected to the upper end of the eleventh connecting surface. Two corner posts are respectively arranged at the left and right ends of the tenth connecting surface. The ninth connecting surface is fixedly connected to the third metal edging, and the twelfth connecting surface is fixed to the lower surface of the top plate by fasteners.

[0012] Preferably, the mounting positions of the fasteners connecting the first metal edging and the upper surface of the top plate are staggered from the mounting positions of the fasteners connecting the first bent member and the lower surface of the top plate; the mounting positions of the fasteners connecting the second metal edging and the upper surface of the top plate are staggered from the mounting positions of the fasteners connecting the second bent member and the lower surface of the top plate; and the mounting positions of the fasteners connecting the third metal edging and the upper surface of the top plate are staggered from the mounting positions of the fasteners connecting the third bent member and the lower surface of the top plate.

[0013] Preferably, a rain eave is also provided on the second metal edging, the rain eave being arranged along the front-to-back direction.

[0014] Preferably, the inner side of the eaves is fixedly connected to the second metal edging, and the outer side of the eaves is bent upwards to form a water channel between the eaves and the second metal edging.

[0015] A cargo compartment, including a roof assembly as described above.

[0016] A method for assembling a cargo box as described above: The bottom surface of the first bent component has multiple positioning holes d; the bottom surface of the second bent component has multiple positioning holes e; the bottom surface of the third bent component has multiple positioning holes f; the front panel assembly of the cargo box is provided with columns corresponding to the positioning holes f on the third bent component; the upper ends of the columns of the front panel assembly are inserted into the positioning holes f on the third bent component, and the front panel assembly is fixedly connected to the third bent component of the top cover assembly by fasteners; the first side panel assembly of the cargo box is provided with columns corresponding to the positioning holes d on the first bent component; the cargo box... The upper end of the column of the first side panel assembly is inserted into the positioning hole d on the first bent part and the first side panel assembly is fixedly connected to the first bent part of the top cover assembly by fasteners; the second side panel assembly of the cargo compartment is provided with a U-shaped metal part corresponding to the positioning hole e on the second bent part, the upper end of the U-shaped metal part of the second side panel assembly of the cargo compartment is inserted into the positioning hole e on the second bent part and the second side panel assembly of the cargo compartment is fixedly connected to the second bent part of the top cover assembly by fasteners; the upper end of the rear door assembly of the cargo compartment is fixedly connected to the tail plate of the top cover assembly by fasteners.

[0017] A vehicle comprising a cargo compartment as described above.

[0018] The present invention has the following beneficial effects due to the adoption of the above technical solutions: The top plate of the present invention uses a whole piece of lightweight composite board, which reduces the overall weight of the box and further improves its compressive strength, facilitates personnel assembly, reduces seams, enhances the sealing of the box, and prevents external rainwater and salt water from seeping into the box. In addition, the box itself is based on the characteristics of PP honeycomb board, which is not easily corroded, and the heat insulation effect inside the box is good and not easily affected by the external environment. Furthermore, by setting grooves between the top frame and the top plate, a small amount of rainwater can be accumulated, which can further prevent rainwater from entering the carriage. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the cargo compartment;

[0020] Figure 2 It's an exploded view of the cargo compartment;

[0021] Figure 3 This is a structural schematic diagram of the base plate assembly;

[0022] Figure 4 yes Figure 3 Another structural diagram;

[0023] Figure 5 This is a structural schematic diagram of the roof assembly;

[0024] Figure 6 This is a structural diagram of the roof assembly (excluding the tailgate, roof, first metal edging, second metal edging, and third metal edging);

[0025] Figure 7 This is a structural schematic diagram of the first corrugated plate;

[0026] Figure 8 This is a structural diagram of the second corrugated plate;

[0027] Figure 9 yes Figure 8 Another structural diagram;

[0028] Figure 10 This is a structural schematic diagram of the front panel assembly;

[0029] Figure 11 This is a structural schematic diagram of the first side panel assembly;

[0030] Figure 12 This is a structural schematic diagram of the second side panel assembly;

[0031] Figure 13 This is a structural schematic diagram of the side door assembly;

[0032] Figure 14 yes Figure 13 A cross-sectional schematic diagram;

[0033] Figure 15 This is a structural diagram of the rear door assembly;

[0034] Figure 16 This is a structural diagram of the positioning column;

[0035] Figure 17 This is a schematic diagram of the cross-section of the positioning post.

[0036] Figure label:

[0037] 100. Cargo compartment;

[0038] 1. Base frame assembly; 11. Base frame; 111. First side beam; 1111. Positioning hole a; 112. Second side beam; 1121. Positioning hole b; 1123. Notch; 1124. Third U-shaped part; 1125. Baffle; 113. Front beam; 1131. Positioning hole c; 115. Crossbeam; 116. Longitudinal beam; 117. Angle bracket; 12. Base plate;

[0039] 2. Top cover assembly; 21. Top plate; 211. First metal edging; 212. Second metal edging; 2121. Rain rim; 213. Third metal edging; 221. First bent piece; 2211. First connecting surface; 2212. Second connecting surface; 22121. Positioning hole d; 2213. Third connecting surface; 2214. Fourth connecting surface; 222. Second bent piece; 2221. Fifth connecting surface; 2222. Sixth connecting surface; 22221. Positioning hole e; 2223. Seventh connecting surface; 2224. Eighth connecting surface; 223. Third bent piece; 2231. Ninth connecting surface; 2232. Tenth connecting surface; 22321. Positioning hole f; 2233. Eleventh connecting surface; 2234. Twelfth connecting surface; 2235. Corner post; 224. Tail plate;

[0040] 3. First side panel assembly;

[0041] 4. Second side panel assembly; 41. Side door assembly; 411. Side door frame; 4111. First connector; 4112. Second connector; 4113. Third connector; 4114. Fourth connector; 41141. Nineteenth connecting surface; 41142. Twentieth connecting surface; 41143. Twenty-first connecting surface; 41144. Twenty-second connecting surface; 412. Side door panel; 413. First U-shaped pillar;

[0042] 5. Rear door assembly; 51. Rear door frame; 511. Seventh connector; 512. Eighth connector; 5121. Twenty-third connecting surface; 5122. Twenty-fourth connecting surface; 5123. Twenty-fifth connecting surface; 5124. Twenty-sixth connecting surface; 5125. Twenty-seventh connecting surface; 513. Ninth connector; 514. Tenth connector; 515. Second U-shaped pillar; 517. Fourth U-shaped component; 518. Thirteenth connector; 52. Rear door panel;

[0043] 6. Front panel assembly;

[0044] 7. Positioning pin; 71. Fourth bending component; 72. Fifth bending component; 721. Twenty-eighth connecting surface; 722. Twenty-ninth connecting surface; 723. Thirtieth connecting surface; 724. Thirty-first connecting surface; 73. Positioning hole g;

[0045] 8. First corrugated sheet; 81. First sheet body; 811. First L-shaped flange; 812. Second L-shaped flange; 82. First sheet metal part; 83. Second sheet metal part; 831. Thirteenth connecting surface; 832. Fourteenth connecting surface; 833. Fifteenth connecting surface;

[0046] 9. Second corrugated board; 91. Second panel; 911. Third L-shaped flange; 912. Right-angle edge; 92. Third sheet metal part; 93. Fourth sheet metal part; 931. Sixteenth connecting surface; 932. Seventeenth connecting surface; 933. Eighteenth connecting surface; 94. Column;

[0047] 10. Reflective stickers. Detailed Implementation

[0048] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] For clarity, in this invention, when the carriage is installed on a vehicle, the end where the front of the vehicle is located is called the front, and vice versa; the space closest to the carriage encloses is called the inner, and vice versa is called the outer.

[0054] This invention discloses a vehicle, the vehicle comprising as follows Figure 1 and Figure 2 The cargo box 100 shown has reflective stickers 10 arranged around its perimeter.

[0055] In this invention, such as Figure 1 and Figure 2 As shown, the cargo box 100 includes: a base frame assembly 1, a top cover assembly 2, a first side panel assembly 3, a second side panel assembly 4, a rear door assembly 5, a front panel assembly 6, and two positioning posts 7. The first side panel assembly 3, the second side panel assembly 4, the rear door assembly 5, the front panel assembly 6, and the two positioning posts 7 are detachably connected to the base frame assembly 1. One positioning post 7 is located between the first side panel assembly 3 and the front panel assembly 6, and the other positioning post 7 is located between the second side panel assembly 4 and the front panel assembly 6. The top cover assembly 2 is detachably connected to the first side panel assembly 3, the second side panel assembly 4, the rear door assembly 5, the front panel assembly 6, and the two positioning posts 7.

[0056] like Figure 3 and Figure 4As shown, the base frame assembly 1 includes a base frame 11 and a base plate 12. The base plate 12 is fixedly laid on the base frame 11. The base frame 11 includes a first side beam 111, a second side beam 112, a front beam 113, multiple crossbeams 115, multiple longitudinal beams 116, and multiple corner brackets 117. The first side beam 111, the second side beam 112, the front beam 113, the crossbeams 115, and the longitudinal beams 116 are all U-shaped metal parts integrally stamped. The front beam 113 is arranged laterally, and the front end of the first side beam 111... A front beam 113 is laterally connected between the front ends of the second side beam 112 and the first side beam 111. Multiple crossbeams 115 are laterally fixed between the first side beam 111 and the second side beam 112. Multiple longitudinal beams 116 are longitudinally fixed between the first side beam 111 and the second side beam 112. The longitudinal beams 116 are fixedly connected to the lower part of the crossbeams 115 by angle brackets 117. One side of the angle bracket 117 is fixedly connected to the longitudinal beam 116 by fasteners, and the other side of the angle bracket 117 is fixedly connected to the crossbeam 115 by fasteners. The base plate 12 is a metal plate. Since the first side beam 111, the second side beam 112, the front beam 113, the crossbeams 115 and the longitudinal beams 116 are all U-shaped metal parts formed by one-piece stamping, this reduces production costs and production difficulty, while also reducing the weight of the base frame. Furthermore, by placing the longitudinal beams 116 under the crossbeams 115 and fixing them with angle brackets 117 and fasteners, the deformation of the base frame 11 is reduced.

[0057] The U-shaped grooves of the first side beam 111, the second side beam 112, and the front beam 113 are all arranged inward. The top surfaces of the first side beam 111, the second side beam 112, the front beam 113, and the multiple crossbeams 115 are located on the same plane, so that the base plate 12 can be laid flat and fixed on it.

[0058] Furthermore, to increase the strength of the connection between the corner bracket 117 and the longitudinal beam 116, a U-shaped reinforcing member is provided inside the longitudinal beam 116, and the corner bracket 117, the longitudinal beam 116, and the U-shaped reinforcing member are fixedly connected by fasteners; to increase the strength of the connection between the corner bracket 117 and the crossbeam 115, a U-shaped reinforcing member is provided inside the crossbeam 115, and the corner bracket 117, the crossbeam 115, and the U-shaped reinforcing member are fixedly connected by fasteners.

[0059] In this invention, the top surface of the first side beam 111 is provided with a plurality of positioning holes a1111 for positioning and installing the first side plate assembly 3. The top surface of the second side beam 112 is provided with a plurality of positioning holes b1121 for positioning and installing the second side plate assembly 4. In this embodiment, since the second side plate assembly 4 includes a side door assembly 41, in order to install the side door assembly 41 on the second side plate assembly 4, a notch 1123 is provided in the middle of the second side beam 112. A third U-shaped member 1124 is provided at the front and rear ends of the notch 1123 respectively. The third U-shaped member 1124 is fixedly connected to the second side beam 112 and forms a positioning hole b1121 for positioning and installing the side door assembly 41 between the third U-shaped member 1124 and the second side beam 112. A baffle 1125 is provided between the two third U-shaped members 1124 to cover the notch 1123. The height of the baffle 1125 is lower than the height of the top surface of the second side beam 112. The baffle 1125 is an L-shaped connecting plate and is used to support the bottom surface of the side door assembly 41. The top surface of the front beam 113 is provided with several positioning holes c1131 for positioning and mounting the front panel assembly 6.

[0060] like Figure 5 and Figure 6 As shown, the top cover assembly 2 includes a top plate 21, which is a lightweight composite panel made of PP honeycomb panels. PP honeycomb panels solve a series of prominent problems existing in traditional logistics containers. Unlike the top plate made of traditional corrugated panels, the lightweight composite panel is used as a whole, which reduces the overall weight of the container and further improves its compressive strength. It is convenient for personnel to assemble, reduces seams, enhances the sealing of the container, and prevents external rainwater and salt water from seeping into the container. Furthermore, the container itself is not easily corroded based on the characteristics of PP honeycomb panels, and has good insulation effect inside the container, making it less susceptible to interference from the external environment.

[0061] The top cover assembly 2 further includes a first bending member 221, a second bending member 222, a third bending member 223, a tail plate 224, a first metal edging 211, a second metal edging 212, and a third metal edging 213. The first bending member 221, the second bending member 222, and the third bending member 223 are fixedly connected. The first bending member 221 and the second bending member 222 are respectively disposed on the left and right sides of the top plate 21, and the third bending member 223 is disposed on the front side of the top plate 21. The inner sides of the first bending member 221, the second bending member 222, and the third bending member 223 are all bent and fixed to the lower surface of the top plate 21 by fasteners. There are grooves between the first bending member 221, the second bending member 222, and the third bending member 223 and the lower surface of the top plate 21. The lower part of the left and right ends of the third bending member 223 is respectively provided with a vertical angle post 2235. Tail plate 224 is located above top plate 21. The front side of tail plate 224 is fixedly connected to top plate 21, and the rear side of tail plate 224 protrudes backward from top plate 21. The first metal edging 211, the second metal edging 212, and the third metal edging 213 are all L-shaped metal edgings. One side of the first metal edging 211 is fixedly connected to the outer side of the first bent piece 221, and the other side of the first metal edging 211 is fixedly connected to the upper surface of top plate 21 by fasteners. One side of the second metal edging 212 is fixedly connected to the outer side of the second bent piece 222, and the other side of the second metal edging 212 is fixedly connected to the upper surface of top plate 21 by fasteners. One side of the third metal edging 213 is fixedly connected to the front side of the third bent piece 223, and the other side of the third metal edging 213 is fixedly connected to the upper surface of top plate 21 by fasteners.

[0062] In the actual production of the top cover assembly 2, the first bent part 221, the second bent part 222, the third bent part 223, the first metal edging 211, the second metal edging 212, and the third metal edging 213 can be pre-welded and fixed. Then, the top plate 21 is inserted from back to front into the top plate mounting hole formed by the first bent part 221, the second bent part 222, the third bent part 223, the first metal edging 211, the second metal edging 212, and the third metal edging 213. Then, the top plate 21 is connected to the first bending member 221, the second bending member 222, the third bending member 223, the first metal edging 211, the second metal edging 212, and the third metal edging 213 respectively using fasteners. Finally, the tail plate 224 is fixed to the rear end of the top plate 21. The rear end of the first metal edging 211 and the rear end of the second metal edging 212 are fixedly connected through the tail plate 224, so that the tail plate 224 forms a water-blocking area above the rear door assembly 41.

[0063] The first bending member 221 includes a first connecting surface 2211, a second connecting surface 2212, a third connecting surface 2213, and a fourth connecting surface 2214. The first connecting surface 2211 and the third connecting surface 2213 are vertically arranged, with the first connecting surface 2211 located outside the third connecting surface 2213. The second connecting surface 2212 and the fourth connecting surface 2214 are horizontally arranged. The lower end of the first connecting surface 2211 and the lower end of the third connecting surface 2213 are connected through the second connecting surface 2212. The outer end of the fourth connecting surface 2214 is connected to the upper end of the third connecting surface 2213. The first connecting surface 2211 is fixedly connected to the first metal edging 211. The fourth connecting surface 2214 is fixed to the lower surface of the top plate 21 by fasteners. The second connecting surface 2212 has a plurality of positioning holes d22121 for positioning and mounting on the first side plate assembly 3.

[0064] The second bending member 222 includes a fifth connecting surface 2221, a sixth connecting surface 2222, a seventh connecting surface 2223, and an eighth connecting surface 2224. The fifth connecting surface 2221 and the seventh connecting surface 2223 are vertically arranged, with the fifth connecting surface 2221 located outside the seventh connecting surface 2223. The sixth connecting surface 2222 and the eighth connecting surface 2224 are horizontally arranged. The lower end of the fifth connecting surface 2221 and the lower end of the seventh connecting surface 2223 are connected through the sixth connecting surface 2222. The outer end of the eighth connecting surface 2224 is connected to the upper end of the seventh connecting surface 2223. The fifth connecting surface 2221 is fixedly connected to the second metal edging 212. The eighth connecting surface 2224 is fixed to the lower surface of the top plate 21 by fasteners. The sixth connecting surface 2222 has multiple positioning holes e22221 for positioning and mounting on the second side plate assembly 4.

[0065] The third bending member 223 includes a ninth connecting surface 2231, a tenth connecting surface 2232, an eleventh connecting surface 2233, and a twelfth connecting surface 2234. The ninth connecting surface 2231 and the eleventh connecting surface 2233 are vertically arranged, with the ninth connecting surface 2231 located outside the eleventh connecting surface 2233. The tenth connecting surface 2232 and the twelfth connecting surface 2234 are horizontally arranged. The lower end of the ninth connecting surface 2231 and the lower end of the eleventh connecting surface 2233 are connected by a first connecting surface 2234. The tenth connecting surface 2232 is connected, the outer end of the twelfth connecting surface 2234 is connected to the upper end of the eleventh connecting surface 2233, two corner posts 2235 are respectively set at the left and right ends of the tenth connecting surface 2232, the ninth connecting surface 2231 is fixedly connected to the third metal edging 213, the twelfth connecting surface 2234 is fixed to the lower surface of the top plate 21 by fasteners, and the tenth connecting surface 2232 has a number of positioning holes f22321 for positioning and mounting on the front plate assembly 6.

[0066] In this invention, the installation positions of the fasteners connecting the first metal edging 211 and the upper surface of the top plate 21 are staggered from the installation positions of the fasteners connecting the first bent piece 221 and the lower surface of the top plate 21; the installation positions of the fasteners connecting the second metal edging 212 and the upper surface of the top plate 21 are staggered from the installation positions of the fasteners connecting the second bent piece 222 and the lower surface of the top plate 21; and the installation positions of the fasteners connecting the third metal edging 213 and the upper surface of the top plate 21 are staggered from the installation positions of the fasteners connecting the third bent piece 223 and the lower surface of the top plate 21. This further enhances the sealing performance of the enclosure, preventing external rainwater and salt water from seeping into the enclosure through the fasteners on the upper surface of the top plate 21. Alternatively, applying adhesive or similar substances to the fastener installation positions can further enhance the enclosure's sealing performance.

[0067] A rain eave 2121 is also arranged on the second metal edging 212. The rain eave 2121 is arranged in the front-to-back direction. The inner side of the rain eave 2121 is fixedly connected to the second metal edging 212. The outer side of the rain eave 2121 is bent upward so that a water guide groove is formed between the rain eave 2121 and the second metal edging 212. The rain eave 2121 is used to cover the top of the side door assembly 41.

[0068] Because the side panel assemblies and front panel assemblies in traditional disassembled and assembled vehicles are large and heavy, lifting equipment is usually required during disassembly and assembly. To facilitate user disassembly and assembly of the side panel assemblies and front panel assemblies, in this invention, the first side panel assembly 3 is constructed by splicing together several first corrugated plates 8 and several second corrugated plates 9. The second side panel assembly 4 is constructed by splicing together a side door assembly 41 and several first corrugated plates 8, with the multiple first corrugated plates 8 located on the front and rear sides of the side door assembly 41 respectively. The front panel assembly 6 is constructed by splicing together several first corrugated plates 8 and several second corrugated plates 9.

[0069] For ease of disassembly and assembly, such as Figure 7As shown, the first corrugated sheet 8 includes a first sheet body 81, a first sheet metal part 82, and a second sheet metal part 83. The first sheet metal part 82 has a groove, and the upper end of the first sheet body 81 is fixedly disposed within the groove of the first sheet metal part 82. The second sheet metal part 83 includes a thirteenth connecting surface 831, a fourteenth connecting surface 832, and a fifteenth connecting surface 833, which are sequentially bent into shape. The thirteenth connecting surface 831 and the fifteenth connecting surface 833 are vertically arranged. The lower end of the thirteenth connecting surface 831 and the tenth connecting surface 833 are connected together. The upper ends of the five connecting surfaces 833 are connected by the fourteenth connecting surface 832. The lower end of the first plate 81 is fixedly mounted on the fourteenth connecting surface 832. The thirteenth connecting surface 831 is located inside the first plate 81 and is fixedly connected to it. The fifteenth connecting surface 833 is located outside the first plate 81. A first L-shaped flange 811 is provided on the outer side of one vertical edge of the first plate 81, and a second L-shaped flange 812 is provided on the outer side of the other vertical edge of the first plate 81. The first corrugated plate 8 is fixed to the top cover assembly 2 of the cargo box 100 by the first sheet metal part 82, and the first corrugated plate 8 is fixed to the bottom plate assembly 1 of the cargo box 100 by the second sheet metal part 83. The fasteners used to fix the first corrugated plate 8 to the top cover assembly 2 can be set on the side of the groove on the first sheet metal part 82 near the inner side of the cargo box 100 to avoid the fasteners being exposed, resulting in a more aesthetically pleasing overall appearance. The fourteenth connecting surface 832 of the second sheet metal part 83 can be placed on the bottom frame of the base plate assembly 1, and the base plate assembly 1 is covered by the fifteenth connecting surface 833.

[0070] like Figure 8 and Figure 9As shown, the second corrugated sheet 9 includes a second sheet body 91, a third sheet metal part 92, a fourth sheet metal part 93, and a column 94. The third sheet metal part 92 has a groove, and the upper end of the second sheet body 91 is fixedly disposed within the groove of the third sheet metal part 92. The fourth sheet metal part 93 includes a sixteenth connecting surface 931, a seventeenth connecting surface 932, and an eighteenth connecting surface 933, which are sequentially bent into shape. The sixteenth connecting surface 931 and the eighteenth connecting surface 933 are vertically arranged. The lower end of the sixteenth connecting surface 931 and the upper end of the eighteenth connecting surface 933 are connected by the seventeenth connecting surface 932. The lower end of the second sheet body 91 is fixedly disposed on the seventeenth connecting surface 932. Located inside the second plate 91 and fixedly connected to the second plate 91, the eighteenth connecting surface 933 is located outside the second plate 91. A third L-shaped flange 911 is provided on the outer side of one vertical side of the second plate 91, and the outer side of the other vertical side of the second plate 91 is bent inward to form a right-angle edge 912. The column 94 is fixedly installed between the right-angle edge 912 and the second plate 91. The upper end of the column 94 protrudes from the upper end of the third sheet metal part 92, and the lower end of the column 94 protrudes from the lower end of the second plate 91. There is a gap between the lower end of the column 94 and the eighteenth connecting surface 933, so that the column 94 can be easily inserted into the corresponding positioning holes of the base plate assembly 1 and the top cover assembly 2.

[0071] The second corrugated sheet 9 is fixed to the top cover assembly 2 of the cargo box 100 via the third sheet metal part 92, and the second corrugated sheet 9 is fixed to the bottom plate assembly 1 of the cargo box 100 via the fourth sheet metal part 93. The fasteners used to fix the second corrugated sheet 9 to the top cover assembly 2 can be located on the side of the groove on the third sheet metal part 92 near the inside of the cargo box 100, avoiding exposure of the fasteners and resulting in a more aesthetically pleasing overall appearance. The seventeenth connecting surface 932 of the fourth sheet metal part 93 can be placed on the bottom frame of the bottom plate assembly 1, and the eighteenth connecting surface 933 covers the bottom plate assembly 1.

[0072] By setting a first corrugated plate 8 and a second corrugated plate 9, and fixing a column 94 on the second corrugated plate 9, the splicing seam between the first corrugated plate 8 and the second corrugated plate 9 can be reduced, resulting in better waterproofing. Furthermore, the L-shaped flanges of the first corrugated plate 8 and the second corrugated plate 9 can both serve a positioning function. The column 94 can easily position the second corrugated plate 9 on the bottom plate assembly 1 and the top cover assembly 2, making installation more convenient. Fasteners can also be set on the L-shaped flanges of the first corrugated plate 8 and the second corrugated plate 9, so that the fasteners are located inside the cargo box 100, resulting in a more aesthetically pleasing overall appearance.

[0073] To increase the strength of the first corrugated plate 8 and the second corrugated plate 9, several reinforcing members are fixedly provided on the inner side of the first plate 81 and several reinforcing members are fixedly provided on the inner side of the second plate 91.

[0074] In this invention, such as Figure 11 As shown, the first side panel assembly 3 is composed of a first corrugated plate 8 and three second corrugated plates 9 spliced ​​together. The two sides of the second L-shaped flange 812 of the first corrugated plate 8 are respectively attached to the two adjacent sides of the column 94 of the first second corrugated plate 9 and are respectively fixedly connected by fasteners. The two sides of the third L-shaped flange 911 of the first second corrugated plate 9 are respectively attached to the two adjacent sides of the column 94 of the second second corrugated plate 9 and are respectively fixedly connected by fasteners. The two sides of the third L-shaped flange 911 of the second second corrugated plate 9 are respectively attached to the two adjacent sides of the column 94 of the third second corrugated plate 9 and are respectively fixedly connected by fasteners.

[0075] like Figure 12 and Figure 13 As shown, the second side panel assembly 4 includes a side door assembly 41 and two first corrugated plates 8 respectively spliced ​​and fixed to the front and rear sides of the side door assembly 41. The side door assembly 41 includes a side door frame 411 and a side door panel 412 hinged within the side door frame 411. The inner sides of the two vertical sides of the side door frame 411 are provided with frame-shaped structures. The two sides of the second L-shaped flange 812 on each first corrugated plate 8 are fixed to the frame-shaped structure on the corresponding side of the side door frame 411 by fasteners, thereby fixing the first corrugated plate 8 to the side of the side door frame 411. The frame-shaped structure on the side door frame 411 and the second L-shaped flange 812 on the first corrugated plate 8 are positioned and fitted together, allowing for easy and quick disassembly and assembly by hand. Moreover, the fasteners used to connect the side door frame 411 and the first corrugated plate 8 are located inside the cargo box, resulting in a more aesthetically pleasing overall appearance.

[0076] like Figure 13 As shown, the side door frame 411 includes a first connector 4111, a second connector 4112, a third connector 4113, and a fourth connector 4114. The first connector 4111 and the third connector 4113 are vertically arranged, while the second connector 4112 and the fourth connector 4114 are horizontally arranged. The upper end of the first connector 4111 and the upper end of the third connector 4113 are fixedly connected by the second connector 4112, and the lower end of the first connector 4111 and the lower end of the third connector 4113 are fixedly connected by the fourth connector 4114. The first connector 4111, the second connector 4112, and the third connector 4113 are U-shaped metal parts, and the U-shaped grooves of the first connector 4111, the second connector 4112, and the third connector 4113 are all arranged facing inward. By setting the first connector 4111, the second connector 4112 and the third connector 4113 of the side door frame 411 as a U-shaped metal part formed by one-piece stamping, the weight of the side door frame 41 is reduced and the production cost is also reduced.

[0077] The side door frame 411 also includes two integrally stamped first U-shaped posts 413. The two first U-shaped posts 413 are fixed to the inner side of the first connector 4111 and the inner side of the third connector 4113, respectively, thereby forming a frame structure on the inner side of the two vertical sides of the side door frame 411. The upper end of the first U-shaped post 413 protrudes from the upper end of the side door frame 411, and there is a gap between the lower end of the first U-shaped post 413 and the lower part of the side door frame 411. The first U-shaped post 413 is a U-shaped metal part, and the U-shaped grooves of the first U-shaped post 413 are all arranged outward. By creating a gap between the lower end of the first U-shaped post 413 and the lower part of the side door frame 411, the first U-shaped post 413 can be inserted into the positioning hole of the base plate assembly 1, and the lower part of the side door frame 411 can also be located on the outside of the base plate assembly 1 to cover the base plate assembly 1.

[0078] Furthermore, such as Figure 14 As shown, the fourth connector 4114 includes a nineteenth connecting surface 41141, a twentieth connecting surface 41142, a twenty-first connecting surface 41143, and a twenty-second connecting surface 41144. The nineteenth connecting surface 41141 and the twenty-first connecting surface 41143 are vertically arranged, with the nineteenth connecting surface 41141 located outside the twenty-first connecting surface 41143. The twenty-second connecting surface 41142 and the twenty-second connecting surface 41144 are horizontally arranged. The upper end of the nineteenth connecting surface 41141 and the lower end of the twenty-first connecting surface 41143 are connected through the twenty-first connecting surface 41142, and the upper end of the twenty-first connecting surface 41143 is connected to the outer side of the twenty-second connecting surface 41144. The side door assembly 411 is placed on the bottom frame of the base plate assembly 1 through the twenty-second connecting surface 41142 of the fourth connector 4114, and the base plate assembly 1 is covered by the nineteenth connecting surface 41141.

[0079] The nineteenth connecting surface 41141 on the side door frame 411 and the fifteenth connecting surface 833 on the first corrugated plate 8 are in the same plane.

[0080] In this invention, the side door panel 412 is a lightweight composite board.

[0081] In this invention, the two sides of the first L-shaped flange 811 of a first corrugated plate 8 are respectively attached to the two adjacent sides of the first U-shaped column 413 on one side of the side door frame 411 and are respectively fixedly connected by fasteners. The two sides of the second L-shaped flange 812 of another first corrugated plate 8 are respectively attached to the two adjacent sides of the first U-shaped column 413 on the other side of the side door frame 411 and are respectively fixedly connected by fasteners.

[0082] like Figure 10As shown, the front panel assembly 6 is composed of a first corrugated plate 8 and a second corrugated plate 9 spliced ​​together. The two sides of the second L-shaped flange 812 of the first corrugated plate 8 are respectively attached to the two adjacent sides of the post 94 of the second corrugated plate 9 and are respectively fixedly connected by fasteners.

[0083] like Figure 15 As shown, the rear door assembly 5 includes a rear door frame 51 and a rear door panel 52 hinged within the rear door frame 51. The rear door frame 51 includes a seventh connector 511, an eighth connector 512, a ninth connector 513, a tenth connector 514, and two second U-shaped posts 515. The seventh connector 511 and the ninth connector 513 are vertically arranged, while the eighth connector 512 and the tenth connector 514 are horizontally arranged. The upper end of the seventh connector 511 and the upper end of the ninth connector 513 are fixedly connected by the eighth connector 512, and the lower end of the seventh connector 511 and the lower end of the ninth connector 513 are fixedly connected by the tenth connector 514. The second U-shaped posts 515 are U-shaped metal parts, and the U-shaped grooves of the second U-shaped posts 515 are all arranged facing rearward. The rear sides of the two second U-shaped posts 515 are fixedly connected to the front sides of the seventh connector 511 and the ninth connector 513, respectively. The second U-shaped column 515 is used for fixed connection with the side panel assemblies on the left and right sides of the cargo box. The second U-shaped column 515 is not only lightweight, but also has an L-shaped connecting edge, which facilitates the positioning of the side panel assembly. The ends of the side panel assemblies on both sides of the cargo box 100 can be inside the cargo box, making it more aesthetically pleasing from the outside. The rear door panel 52 is made of lightweight composite board.

[0084] The seventh connector 511 and the ninth connector 513 are square tubular components, and the tenth connector 514 is a U-shaped metal component. The U-shaped groove of the tenth connector 514 faces forward, and multiple thirteenth connectors 518 are provided within the U-shaped groove of the tenth connector 514. The rear side of the thirteenth connector 518 is fixedly connected to the tenth connector 514, and the front side of the thirteenth connector 518 is used for fixed connection to the floor assembly of the cargo box. This arrangement of the thirteenth connectors 518 to fix the tenth connector 514 and the floor assembly 1 reduces the weight of the rear door frame 51 while also ensuring a fixed connection with the floor assembly 1.

[0085] The eighth connector 512 includes a twenty-third connecting surface 5121, a twenty-fourth connecting surface 5122, a twenty-fifth connecting surface 5123, a twenty-sixth connecting surface 5124, and a twenty-seventh connecting surface 5125. The twenty-fourth connecting surface 5122 and the twenty-sixth connecting surface 5124 are vertically arranged, with the twenty-fourth connecting surface 5122 located behind the twenty-sixth connecting surface 5124. The twenty-third connecting surface 5121, the twenty-fifth connecting surface 5123, and the twenty-seventh connecting surface 5125 are horizontally arranged. The front side of the twenty-third connecting surface 5121 is connected to the upper end of the twenty-fourth connecting surface 5122. The lower end of the twenty-fourth connecting surface 5122 and the lower end of the twenty-sixth connecting surface 5124 are connected through the twenty-fifth connecting surface 5123. The upper end of the twenty-sixth connecting surface 5124 is connected to the rear side of the twenty-seventh connecting surface 5125.

[0086] Furthermore, the height of the 24th connecting surface 5122 is greater than the height of the 26th connecting surface 5124. In this way, the 24th connecting surface 5122 can completely cover the top plate in the top cover assembly 2.

[0087] The 27th connecting surface 5125 is used to fixably connect with the lower surface of the rear end of the top plate 21 in the top cover assembly 2 of the cargo box 100. The height difference between the 24th connecting surface 5122 and the 26th connecting surface 5124 is greater than the thickness of the top plate 21. The 23rd connecting surface 5121 is used to fixably connect with the tail plate 224 in the top cover assembly 2 of the cargo box 100. In this way, the rear end of the top plate 21 of the top cover assembly 2 is placed on the 26th connecting surface 5124, and the 24th connecting surface 5122 covers the rear end of the top plate. Water entering from the rear of the top plate 21 can enter the groove formed by the 24th connecting surface 5122, the 25th connecting surface 5123 and the 26th connecting surface 5124, thereby preventing water from entering the interior of the cargo box. The fasteners used to fix the 27th connecting surface 5125 to the top plate assembly 2 are located inside the cargo box 100, and the overall appearance is relatively beautiful.

[0088] To increase the strength of the eighth connector 512, a plurality of fourth U-shaped members 517 are fixedly provided between the second fourteenth connecting surface 5122 and the second sixteenth connecting surface 5124. One side of the fourth U-shaped member 517 is fixedly connected to the second fourteenth connecting surface 5122, and the other side of the fourth U-shaped member 517 is fixedly connected to the second sixteenth connecting surface 5124 to prevent the eighth connector 512 from deforming.

[0089] like Figure 16 and Figure 17As shown, the positioning post 7 includes a fourth bent component 71 and a fifth bent component 72. The fourth bent component 71 is an L-shaped metal part. The fifth bent component 72 includes a twenty-eighth connecting surface 721, a twenty-ninth connecting surface 722, a thirtieth connecting surface 723, and a thirty-first connecting surface 724 connected in a stepped manner. The free end of the twenty-eighth connecting surface 721 is fixed perpendicularly to one side of the fifth bent component 72, and the free end of the thirty-first connecting surface 724 is fixed perpendicularly to the other side of the fifth bent component 72, thereby forming a positioning hole g73 between the fifth bent component 72 and the fourth bent component 71.

[0090] The present invention also discloses a method for assembling the carriage 100, the specific steps of which are as follows:

[0091] 1) Install positioning posts 7: The lower ends of the two positioning posts 7 are vertically fixed on the left and right sides of the front end of the base frame 11 of the base frame assembly 1 using fasteners;

[0092] 2) Assemble the front panel assembly 6: The front panel assembly 6 is formed by assembling and fixing a first corrugated plate 8 and a second corrugated plate 9 on the base frame assembly 1;

[0093] 3) Assemble the first side panel assembly 3: The first side panel assembly 3 is formed by assembling one first corrugated plate 8 and three second corrugated plates 9 on the base frame assembly 1;

[0094] 4) Assemble the second side panel assembly 4: The second side panel assembly 4 is formed by assembling two first corrugated plates 8 and the side door assembly 41. The two first corrugated plates 8 are respectively set on the left and right sides of the side panel assembly 41.

[0095] 5) Install rear door assembly 5: Install rear door assembly 5 at the rear end of chassis assembly 1;

[0096] 6) Install the top cover assembly 2: Insert the two corner posts 2235 of the top cover assembly 2 into the positioning holes of the corresponding positioning posts 7, and fix the top cover assembly 2 to the front panel assembly 6, the first side panel assembly 3, the second side panel assembly 4 and the rear door assembly 5 with fasteners.

[0097] Specifically, in step 2), a post 94 of a second corrugated plate 9 is inserted into the positioning hole at the front end of the base frame 11. At this time, the thirtieth connecting surface 723 and the thirty-first connecting surface 724 of a positioning post 7 on the two sides of the L-shaped flange of the second corrugated plate 9 are tightly attached and fixed by fasteners. The lower end of the second corrugated plate 9 and the post 94 are fixed to the base frame 11 by fasteners. The two sides of the L-shaped flange on one side of a first corrugated plate 8 are tightly attached to the two adjacent sides of the post 94 of the second corrugated plate 9 and fixed by fasteners. At this time, the two sides of the L-shaped flange on the other side of the first corrugated plate 8 are tightly attached to the thirtieth connecting surface 723 and the thirty-first connecting surface 724 of another positioning post 7 and fixed by fasteners. The lower end of the first corrugated plate 8 is fixed to the base frame 11 by fasteners, thereby forming the front plate assembly 6.

[0098] In step 3), the lower end of a first corrugated sheet 8 is fixed to the base frame 11 with fasteners. The upright 94 of the first second corrugated sheet 9 is inserted into the positioning hole on one side of the corresponding base frame 11, so that the two adjacent sides of the upright 94 of the first second corrugated sheet 9 are respectively in close contact with the two sides of the L-shaped flange on one side of the first corrugated sheet 8 and are respectively fixed with fasteners. The lower end of the first second corrugated sheet 9 and the upright 94 are respectively fixed to the base frame 11 with fasteners. The upright 94 of the second second corrugated sheet 9 is inserted into the positioning hole on one side of the base frame 11 of the corresponding base frame assembly 1, so that the two adjacent sides of the upright 94 of the second second corrugated sheet 9 are respectively in close contact with the two sides of the L-shaped flange on one side of the first corrugated sheet 8 and are respectively fixed with fasteners. The two sides of the L-shaped flange on the other side of the first second corrugated plate 9 are tightly attached to each other and fixed with fasteners. The lower end of the second second corrugated plate 9 and the column 94 are fixed to the base frame 11 with fasteners. The column 94 of the third second corrugated plate 9 is inserted into the positioning hole on one side of the base frame 11 of the corresponding base frame assembly 1, so that the two adjacent sides of the column 94 of the third second corrugated plate 9 are tightly attached to the two sides of the L-shaped flange on the other side of the second second corrugated plate 9 and fixed with fasteners. The lower end of the third second corrugated plate 9 and the column 94 are fixed to the base frame 11 with fasteners, thereby forming the first side plate assembly 3. When installing the first side panel assembly 3, the two sides of the L-shaped flange on one side of the first corrugated plate 8 are respectively attached to the twenty-eighth connecting surface 721 and the twenty-ninth connecting surface 722 of a positioning post 7 and are respectively fixed by fasteners; or, the two sides of the L-shaped flange of the second corrugated plate 9 located on the outermost side are respectively attached to the twenty-eighth connecting surface 721 and the twenty-ninth connecting surface 722 of a positioning post 7 and are respectively fixed by fasteners.

[0099] In step 4), the two sides of the L-shaped flange on one side of a first corrugated plate 8 are tightly attached to the twenty-eighth connecting surface 721 and the twenty-ninth connecting surface 722 of another positioning post 7 and fixed with fasteners respectively. The lower end of the first corrugated plate 8 is fixed to the base frame 11 with fasteners. The two adjacent sides of the U-shaped post on one side of the side door assembly 41 are tightly attached to the two sides of the L-shaped flange on the other side of the first corrugated plate 8 and fixed with fasteners respectively. The lower end of the side door assembly 41 is fixed to the base frame 11 with fasteners. The two sides of the L-shaped flange on one side of another first corrugated plate 8 are tightly attached to the two adjacent sides of the U-shaped post on the other side of the side door assembly 41 and fixed with fasteners respectively. The lower end of the first corrugated plate 8 is fixed to the base frame 11 with fasteners, thereby forming the second side plate assembly 4.

[0100] In step 5), the two U-shaped pillars of the rear door frame 51 on the rear door assembly 5 are respectively attached to the L-shaped flange at the rear end of the first side panel assembly 3 and the L-shaped flange at the rear end of the second side panel assembly 4 and are respectively fixed by fasteners. The lower end of the rear door frame 51 is fixed to the base frame 11 by fasteners.

[0101] In step 6), the two corner posts 2235 of the top cover assembly 2 are inserted into the positioning holes of the corresponding positioning posts 7, and the upper ends of the uprights on the front panel assembly 6, the upper ends of the uprights on the first side panel assembly 3, the upper ends of the U-shaped posts on the second side panel assembly 4, and the upper ends of the U-shaped posts on the rear door assembly 5 are inserted into the positioning holes of the top cover assembly 2. The top cover assembly 2 is then fixedly connected to the front panel assembly 6, the first side panel assembly 3, the second side panel assembly 4, and the rear door assembly 5 using fasteners.

[0102] All features described in the specification, appended claims and drawings, whether individually or in any combination thereof, are essential features of this invention.

[0103] In the description of this specification, the terms "one embodiment," "some embodiments," "one implementation," "specific implementation," "other implementation," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment, implementation, or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described above can also be combined in any suitable manner in one or more embodiments, implementations, or examples. The technical solutions described in this invention also include technical solutions formed by any one or more specific features, structures, materials, or characteristics described above, either individually or in combination.

[0104] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.

Claims

1. A top cover assembly for a cargo bed comprising a top panel (21), characterized by, It also includes a first bent component (221), a second bent component (222), a third bent component (223), a tail plate (224), a first metal edging (211), a second metal edging (212), and a third metal edging (213). The first bent component (221), the second bent component (222), the third bent component (223), the first metal edging (211), the second metal edging (212), and the third metal edging (213) are welded and fixed. The first bent component (221), the second bent component (222), the third bent component (223), the first metal edging (211), the second metal edging (212), and the third metal edging (213) are welded and fixed. The three metal edgings (213) form a top plate mounting space for mounting the top plate (21), and the top plate (21) is inserted into the top plate mounting space from back to front; the first bending member (221) and the second bending member (222) are respectively provided on the left and right sides of the top plate (21), and the third bending member (223) is provided on the front side of the top plate (21). The inner sides of the first bending member (221), the second bending member (222), and the third bending member (223) are all bent and fixed to the lower surface of the top plate (21) by fasteners. The first bending member (221), the second bending member (222), and the third bending member (223) are all bent and fixed to the lower surface of the top plate (21) by fasteners. 23) There are grooves between the top plate (21) and the lower surface of the top plate (21). The lower part of the left and right ends of the third bending piece (223) is respectively provided with a vertical corner post (2235) for inserting into the positioning hole of the positioning post (7). The tail plate (224) is located above the top plate (21). The front side of the tail plate (224) is fixedly connected to the top plate (21), and the rear side of the tail plate (224) protrudes backward from the top plate (21). The first metal edging (211), the second metal edging (212) and the third metal edging (213) are all L-shaped metal edgings. One side of the first metal edging (211) is connected to the first bending piece (221). The outer side of the first metal edging (211) is fixedly connected to the outer side of the second bending member (222), and the other side of the second metal edging (212) is fixedly connected to the upper surface of the top plate (21) by fasteners. One side of the second metal edging (212) is fixedly connected to the outer side of the second bending member (222), and the other side of the second metal edging (212) is fixedly connected to the upper surface of the top plate (21) by fasteners. One side of the third metal edging (213) is fixedly connected to the front side of the third bending member (223), and the other side of the third metal edging (213) is fixedly connected to the upper surface of the top plate (21) by fasteners. The top plate (21) is a PP honeycomb panel. The bottom surface of the first bending member (221) has multiple positioning holes d (22121) for mounting the columns of the first side panel assembly, the bottom surface of the second bending member (222) has multiple positioning holes e (22221) for mounting the U-shaped metal parts of the second side panel assembly, and the bottom surface of the third bending member (223) has multiple positioning holes f (22321) for mounting the columns of the front panel assembly. The first bending member (221) includes a first connecting surface (2211), a second connecting surface (2212), a third connecting surface (2213), and a fourth connecting surface (2214). The first connecting surface (2211) and the third connecting surface (2213) are vertically arranged, and the first connecting surface (2211) is located outside the third connecting surface (2213). The second connecting surface (2212) and the fourth connecting surface (2214) are horizontally arranged. The lower end of the first connecting surface (2211) and the lower end of the third connecting surface (2213) are connected through the second connecting surface (2212). The outer end of the fourth connecting surface (2214) is connected to the upper end of the third connecting surface (2213). The first connecting surface (2211) is fixedly connected to the first metal edging (211). The fourth connecting surface (2214) is fixed to the lower surface of the top plate (21) by fasteners. The second bending member (222) includes a fifth connecting surface (2221), a sixth connecting surface (2222), a seventh connecting surface (2223), and an eighth connecting surface (2224). The fifth connecting surface (2221) and the seventh connecting surface (2223) are vertically arranged, and the fifth connecting surface (2221) is located outside the seventh connecting surface (2223). The sixth connecting surface (2222) and the eighth connecting surface (2224) are horizontally arranged. The lower end of the fifth connecting surface (2221) and the lower end of the seventh connecting surface (2223) are connected through the sixth connecting surface (2222). The outer end of the eighth connecting surface (2224) is connected to the upper end of the seventh connecting surface (2223). The fifth connecting surface (2221) is fixedly connected to the second metal edging (212), and the eighth connecting surface (2224) is fixed to the lower surface of the top plate (21) by fasteners. The third bending component (223) includes a ninth connecting surface (2231), a tenth connecting surface (2232), an eleventh connecting surface (2233), and a twelfth connecting surface (2234). The ninth connecting surface (2231) and the eleventh connecting surface (2233) are vertically arranged, with the ninth connecting surface (2231) located outside the eleventh connecting surface (2233). The tenth connecting surface (2232) and the twelfth connecting surface (2234) are horizontally arranged. The ninth connecting surface (2231)... The lower end of the 11th connecting surface (2233) and the lower end of the 12th connecting surface (2234) are connected by the 10th connecting surface (2232). The outer end of the 12th connecting surface (2234) is connected to the upper end of the 11th connecting surface (2233). The two corner posts (2235) are respectively set at the left and right ends of the 10th connecting surface (2232). The 9th connecting surface (2231) is fixedly connected to the third metal edging (213). The 12th connecting surface (2234) is fixed to the lower surface of the top plate (21) by fasteners.

2. A cargo box roof assembly as in claim 1, wherein, The installation positions of the fasteners used to connect the first metal edging (211) and the upper surface of the top plate (21) are offset from the installation positions of the fasteners used to connect the first bent part (221) and the lower surface of the top plate (21); the installation positions of the fasteners used to connect the second metal edging (212) and the upper surface of the top plate (21) are offset from the installation positions of the fasteners used to connect the second bent part (222) and the lower surface of the top plate (21); the installation positions of the fasteners used to connect the third metal edging (213) and the upper surface of the top plate (21) are offset from the installation positions of the fasteners used to connect the third bent part (223) and the lower surface of the top plate (21).

3. A cargo box roof assembly as in claim 1, wherein, A rain eave (2121) is also arranged on the second metal edging (212), and the rain eave (2121) is arranged in the front-to-back direction.

4. The top cover assembly of a cargo box according to claim 3, characterized in that, The inner side of the eaves (2121) is fixedly connected to the second metal edging (212), and the outer side of the eaves (2121) is bent upward so that a water channel is formed between the eaves (2121) and the second metal edging (212).

5. A cargo box, characterized in that, Includes a cargo box top cover assembly as described in any one of claims 1-4.

6. A method for assembling a cargo compartment as described in claim 5, wherein the front panel assembly of the cargo compartment is provided with a column corresponding to the positioning hole f (22321) on the third bending member (223), the upper end of the column of the front panel assembly of the cargo compartment is inserted into the positioning hole f (22321) on the third bending member (223) and the front panel assembly is fixedly connected to the third bending member (223) of the top cover assembly (2) by fasteners; the first side panel assembly of the cargo compartment is provided with a column corresponding to the positioning hole d (22121) on the first bending member (221), the upper end of the column of the first side panel assembly of the cargo compartment is inserted into the positioning hole d (22121) on the first bending member (221) 21) The first side panel assembly and the first bending piece (221) of the top cover assembly (2) are fixedly connected by fasteners; the second side panel assembly of the cargo compartment is provided with a U-shaped metal piece corresponding to the positioning hole e (22221) on the second bending piece (222). The upper end of the U-shaped metal piece of the second side panel assembly of the cargo compartment is inserted into the positioning hole e (22221) on the second bending piece (222) and the second side panel assembly of the cargo compartment is fixedly connected to the second bending piece (222) of the top cover assembly (2) by fasteners; the upper end of the rear door assembly of the cargo compartment is fixedly connected to the tail plate (224) fixedly installed on the top cover assembly (2) by fasteners.

7. A vehicle, characterized in that, Includes a cargo compartment as described in claim 5.

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