Cargo compartment structure and vehicle

Abstract

The invention discloses a cargo compartment structure and a vehicle, and the cargo compartment structure comprises a cargo compartment system which comprises a cargo compartment bottom plate, a cargo compartment cross beam, a first compartment plate and a second compartment plate; a portal frame outer frame; the portal frame outer frame is connected with the cargo compartment bottom plate, the cargo compartment cross beam, the first compartment plate and the second compartment plate through the connecting piece assemblies, so that the cargo compartment system and the portal frame outer frame form a frame. The portal frame is connected with the cargo compartment bottom plate, the cargo compartment cross beam, the first compartment plate and the second compartment plate of the cargo compartment system through the connecting piece assemblies, so that the cargo compartment system and the portal frame form an independent frame system, the cargo compartment system can work as a whole, and when the cargo compartment system is subjected to external force, the cargo compartment system can work independently. The force can be better dispersed and borne, local stress concentration is reduced, and the structural strength of the frame of the cargo compartment is improved; and on the other hand, the key parts of the cargo compartment system are connected through the connecting piece assembly, dependence on complex connecting pieces can be reduced, and therefore cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle body structures, and in particular to a cargo compartment structure and a vehicle. Background Art

[0002] According to national regulations, trucks with a load capacity of ≥1000kg must be equipped with a gantry 70mm higher than the cab. There are two types of gantry structures for truck cargo compartments: One type is a gantry installed on the rear panel of the cab: this structure is connected to the rear panel of the cab through several brackets. When the user uses the gantry to bundle goods, the connection structure is weak and easily causes deformation of the rear panel or the connecting bracket, which is not conducive to customer use.

[0003] The other is that the gantry is connected to the front plate of the cargo compartment, which is bolted to the floor plate of the compartment and connected to the left and right compartment plates through movable locks: in this solution, the front plate of the cargo compartment occupies the cargo compartment space, shortening the utilization rate of the cargo compartment in the length direction; the connection between the front plate of the cargo compartment and the floor plate of the compartment requires the addition of transition parts, and the front plate of the cargo compartment and the transition parts increase the cost; the gantry and the cargo compartment are only rigidly connected at the bottom, and the bottom rigidity of the gantry is poor, which is easy to collide with the cab during driving and produce abnormal noise. There is a movable lock mechanism on the side, and bumps or vibrations during vehicle driving will cause the movable lock to loosen, thereby affecting the stability of the connection between the gantry and the compartment. Summary of the Invention

[0004] The purpose of the present invention is to provide a cargo compartment structure and a vehicle to improve the connection strength between the gantry and the cargo compartment system, increase the rigidity of the cargo compartment itself and the modal state of the entire vehicle.

[0005] In a first aspect, the present invention provides a cargo compartment structure, comprising: A cargo compartment system, the cargo compartment system comprising a cargo compartment floor, a cargo compartment cross beam, a first compartment plate, and a second compartment plate, the cargo compartment cross beam being disposed at one end of the cargo compartment floor in a first direction, the first compartment plate and the second compartment plate being disposed on opposite sides of the cargo compartment floor in a second direction, the first direction being orthogonal to the second direction; a gantry outer frame, wherein the gantry outer frame extends to the lower portion of the cargo compartment floor in the direction of gravity; A connecting member assembly, wherein the gantry outer frame is respectively connected to the cargo compartment floor, the cargo compartment cross beam, the first compartment plate and the second compartment plate through the connecting member assembly, so that the cargo compartment system and the gantry outer frame form a frame.

[0006] A cargo compartment structure as described above, wherein preferably, the connecting member assembly includes four groups, the gantry outer frame is connected to the cargo compartment floor through a first group of connecting members, the cargo compartment cross beam is connected to the first group of connecting members through a second group of connecting members, the gantry outer frame is connected to the side of the cargo compartment floor through a third group of connecting members, and the first compartment plate and the second compartment plate are both connected to the gantry outer frame through a fourth group of connecting members.

[0007] A cargo compartment structure as described above, wherein preferably, the first group of connecting parts includes connecting columns, the connecting columns are provided at opposite ends of the cargo compartment floor in the second direction, and the two connecting columns are connected to the gantry outer frame.

[0008] A cargo compartment structure as described above, wherein preferably, the second group of connecting members includes a triangular connecting plate, one side of the triangular connecting plate is connected to the bottom plate crossbeam, and the other side of the triangular connecting plate is connected to the first group of connecting members.

[0009] A cargo compartment structure as described above, wherein preferably, the third group of connecting parts includes a foot pedal, the foot pedal includes a first side and a second side, the first side is connected to the gantry outer frame, the second side is connected to the side of the cargo compartment floor, and the extension direction of the first side is perpendicular to the extension direction of the second side.

[0010] A cargo compartment structure as described above, wherein preferably, the fourth group of connecting parts includes a locking portion, the locking portion includes a locking plate and a locking rod, the first compartment plate and the second compartment plate are both provided with the locking plate at one end in the first direction, the gantry outer frame is both provided with the locking rod at the opposite ends in the second direction, the locking plate is provided with a locking groove, and the locking rod can be clamped in the locking groove so that the gantry outer frame is locked and connected to the first compartment plate and the second compartment plate respectively.

[0011] In a second aspect, the present invention provides a vehicle comprising the aforementioned cargo compartment structure, and further comprising a body frame system and a cab system, wherein the body frame system is connected to the cargo compartment system, and / or the body frame system is connected to the cab system.

[0012] A vehicle as described above, wherein preferably, the body frame system includes a frame crossbeam, a rear back plate lower crossbeam and two large beams, the two large beams are respectively connected to the opposite ends of the frame crossbeam, and the rear back plate lower crossbeam is located above the frame crossbeam in the direction of gravity.

[0013] A vehicle as described above, wherein preferably, in the first direction, the cargo compartment system is connected to the lower cross beam of the rear back plate, the body frame system also includes a beam cover plate, the beam cover plate is provided on the beam, the beam cover plate is connected to the lower cross beam of the rear back plate, a cargo compartment mounting point is provided on the beam cover plate, and the cargo compartment system is connected to the body frame system via the cargo compartment mounting point.

[0014] A vehicle as described above, wherein preferably, the cab system includes a cab rear panel and side panels, the cab rear panel is welded to the lower cross beam of the back panel, and in the second direction, the side panels are provided on both sides of the cab rear panel, and the opposite ends of the lower cross beam of the back panel are connected to the side panels.

[0015] Compared with the prior art, the present invention utilizes a connector assembly to connect the gantry with the cargo compartment floor, cargo compartment cross beam, first compartment plate and second compartment plate of the cargo compartment system. On the one hand, the cargo compartment system and the gantry form an independent frame system, which improves the structural integrity and independence of the cargo compartment system. The cargo compartment system can work as a whole. The connector assembly firmly connects the various components together, so that when the cargo compartment system is subjected to external forces, it can better disperse and withstand these forces, reduce local stress concentration, and reduce the risk of component damage. The design of the independent frame system helps to improve the overall performance of the cargo compartment system, thereby increasing the structural strength of the cargo compartment's own frame, which is beneficial to improving the vehicle's overall mode. On the other hand, using the connector assembly to connect the key parts of the cargo compartment system can reduce dependence on complex connectors, which is beneficial to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 1 is a schematic structural diagram of a cargo compartment front connection structure provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the cargo compartment system and the gantry outer frame provided by an embodiment of the present invention; Figure 3 This is a front view of the connection between the cargo compartment system and the gantry outer frame provided by an embodiment of the present invention; Figure 4 yes Figure 2 Enlarged view of the part A in the middle; Figure 5 is a perspective view of a locking portion provided by an embodiment of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the connection between the vehicle body frame system and the cargo compartment system provided by an embodiment of the present invention; Figure 7 This is a partial perspective view of the connection between the vehicle body frame system and the cab system provided by an embodiment of the present invention; Figure 8 yes Figure 7 Cross-section view in the AA direction; Description of reference numerals: 10- cargo compartment system, 11- cargo compartment floor, 12- cargo compartment crossbeam, 13- first compartment plate, 14- second compartment plate; 20-gantry frame; 30-body frame system, 31-frame crossbeam, 32-rear back panel lower crossbeam, 33-beam, 34-beam cover, 35-cargo compartment mounting point; 40-cab system, 41-cab rear panel, 42-side panel; 50-first set of connecting parts, 51-connecting column, 52-fastening bolts; 60-second set of connecting parts, 61-triangular connecting plate; 70 - third set of connecting members, 71 - footrest, 711 - first side, 712 - second side, 713 - footrest; 80 - fourth connecting member, 81 - locking portion, 811 - locking plate, 812 - locking rod, 813 - locking groove; D1-first direction, D2-second direction. DETAILED DESCRIPTION

[0017] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0018] First, refer to Figures 1 to 5 As shown, the present invention provides a cargo compartment structure, including a cargo compartment system 10, a gantry outer frame 20 and a connector assembly, wherein: The cargo compartment system 10 includes a cargo compartment floor 11, a cargo compartment cross member 12, a first compartment panel 13, and a second compartment panel 14. The cargo compartment cross member 12 is disposed at one end of the cargo compartment floor 11 in a first direction D1. The first compartment panel 13 and the second compartment panel 14 are disposed on opposite sides of the cargo compartment floor 11 in a second direction D2. The first direction D1 and the second direction D2 are orthogonal. The first direction D1 represents the vehicle's forward movement. The cargo compartment cross member 12 is located at the front end of the cargo compartment floor 11. The second direction D2 represents the vehicle's left-right direction. The first compartment panel 13 and the second compartment panel 14 are disposed on opposite sides of the cargo compartment floor 11.

[0019] The gantry outer frame 20 is arranged at one end of the cargo compartment floor 11 close to the cargo compartment cross beam 12. In the direction of gravity, the gantry outer frame 20 extends to the lower part of the cargo compartment floor 11, thereby increasing the points at which the gantry outer frame 20 can be connected to the cargo compartment floor 11, which is beneficial to improving the connection strength between the cargo compartment system 10 and the gantry outer frame 20.

[0020] The gantry frame 20 is connected to the cargo compartment floor 11, the cargo compartment cross beam 12, the first compartment plate 13 and the second compartment plate 14 respectively through the connector assembly, so that the cargo compartment system 10 and the gantry frame 20 form an independent frame. Compared with the connection method between the gantry and the cargo compartment system 10 in the prior art, the cargo compartment system 10 and the gantry frame 20 of the present invention are connected through the connector assembly, so that the cargo compartment system 10 and the gantry frame 20 form an independent frame structure. Through the connection of the connector assembly, the various components of the cargo compartment system 10 form an integral structure, which improves the structural integrity and independence of the cargo compartment system 10. When the cargo compartment system 10 is working, the various components can work together rather than being just a simple combination of the various components. When the cargo compartment system 10 is subjected to external forces, it can better disperse and withstand these forces, thereby reducing local stress concentration and reducing the risk of component damage. The independent frame structure improves the overall performance of the cargo compartment system 10 and the structural strength and rigidity of its own frame.

[0021] The use of connector components reduces reliance on complex structural components during the design and manufacturing process, thereby reducing production costs. Furthermore, the use of connector components simplifies the assembly process, improves production efficiency, and further reduces production costs.

[0022] In the embodiments provided in this application, refer to Figure 2 and Figure 3 As shown, the connecting member assembly includes four groups, the gantry outer frame 20 is connected to the cargo compartment floor 11 through the first group of connecting members 50, the cargo compartment cross beam 12 is connected to the first group of connecting members 50 through the second group of connecting members 60, the gantry outer frame 20 is connected to the side of the cargo compartment floor 11 through the third group of connecting members 70, and the first compartment plate 13 and the second compartment plate 14 are both connected to the gantry outer frame 20 through the fourth group of connecting members 80.

[0023] In one possible implementation, refer to Figure 2 and Figure 3 As shown, the first group of connecting parts 50 includes two connecting columns 51. Connecting columns 51 are provided at the opposite ends of the cargo compartment floor 11 in the second direction D2. The connecting columns 51 extend to the lower part of the cargo compartment floor 11 along the direction of gravity. The gantry outer frame 20 is respectively connected to the corresponding connecting columns 51 by fastening bolts 52, thereby realizing the connection between the gantry outer frame 20 and the cargo compartment floor 11.

[0024] Reference Figure 3As shown, the second group of connecting parts 60 includes two triangular connecting plates 61, and triangular connecting plates 61 are provided at the opposite ends of the cargo compartment floor 11 in the second direction D2. The two triangular connecting plates 61 are arranged corresponding to the two connecting columns 51. One side of the triangular connecting plate 61 is connected to the cargo compartment cross beam 12, and the other side of the triangular connecting plate 61 is connected to the connecting column 51. Since the connecting column 51 extends to the lower part of the cargo compartment floor 11, the other side of the triangular connecting plate 61 is connected to the part of the connecting column 51 extending to the lower part of the cargo compartment floor 11. Based on the structural characteristics of the triangular connecting plate 61, the connection between the cargo compartment cross beam 12 and the connecting column 51 is stable. Through the action of the connecting column 51 and the triangular connecting plate 61, a stable connection between the cargo compartment cross beam 12 and the gantry outer frame 20 is achieved, further improving the connection strength between the gantry outer frame 20 and the cargo compartment floor 11.

[0025] The first group of connecting members 50 and the second group of connecting members 60 can realize the connection between the gantry outer frame 20 and the cargo compartment floor 11 in the second direction D2, in order to realize the connection between the gantry outer frame 20 and the cargo compartment floor 11 in the first direction D1, so as to improve the connection strength between the gantry outer frame 20 and the cargo compartment floor 11.

[0026] Reference Figure 4 As shown, the third group of connecting parts 70 includes two foot pedals 71, and foot pedals 71 are provided at the opposite ends of the cargo compartment floor 11 in the second direction D2. Since the gantry outer frame 20 is located at the front end of the cargo compartment floor 11, the side edges of the gantry outer frame 20 and the corresponding cargo compartment floor 11 are connected to the same side of the same foot pedal 71, and the gantry outer frame 20 and the cargo compartment floor 11 are connected through the foot pedal 71, so that the connection between the gantry outer frame 20 and the cargo compartment floor 11 in the first direction D1 can be achieved.

[0027] Specifically, the foot pedal 71 includes a first side 711 and a second side 712. The first side 711 is connected to the gantry outer frame 20, and the second side 712 is connected to the side of the cargo compartment floor 11. The extension direction of the first side 711 is perpendicular to the extension direction of the second side 712.

[0028] The first side 711 extends along the direction of gravity, and the second side 712 extends along the first direction D1. The first side 711 of each foot pedal 71 is fixedly connected to the gantry outer frame 20 by bolts, and the second side 712 of the foot pedal 71 is fixedly connected to the side of the cargo compartment floor 11 by bolts, so that the gantry outer frame 20 and the corresponding cargo compartment floor 11 side are connected to the same side of the foot pedal 71, thereby connecting the gantry outer frame 20 and the cargo compartment floor 11 in the first direction D1.

[0029] Furthermore, a foot pedal portion 713 is provided on the foot pedal 71. The foot pedal portion 713 is a step opening on the foot pedal 71. The operator can get on and off the vehicle by stepping on the step opening.

[0030] Reference Figure 4 As shown, the fourth group of connecting parts 80 includes two locking parts 81, and the cargo compartment floor 11 is provided with locking parts 81 at the opposite ends in the second direction D2. The two locking parts 81 are respectively arranged corresponding to the first compartment plate 13 and the second compartment plate 14. The first compartment plate 13 and the second compartment plate 14 are both connected to the gantry outer frame 20 through the locking parts 81.

[0031] By connecting the locking portion 81 to the first compartment panel 13 and the second compartment panel 14, on the one hand, the connection strength between the gantry outer frame 20 and the cargo compartment system 10 can be improved; on the other hand, the first compartment panel 13 and the second compartment panel 14 can be prevented from moving during the driving or movement of the vehicle, thereby improving the stability of the overall structure of the cargo compartment system 10.

[0032] Specifically, refer to Figure 5 As shown, the locking portion 81 includes a locking plate 811 and a locking rod 812. The first compartment plate 13 and the second compartment plate 14 are both provided with a locking plate 811 at one end in the first direction D1, and the gantry outer frame 20 is provided with a locking rod 812 at both opposite ends in the second direction D2. A locking groove 813 is provided on the locking plate 811. When the first compartment plate 13 and the second compartment plate 14 are connected to the gantry outer frame 20, the locking plate 811 abuts against the outer side of the gantry outer frame 20, and the locking rod 812 can be rotated on the gantry outer frame 20. When the locking rod 812 is rotated to be engaged in the locking groove 813, the gantry outer frame 20 can be locked and connected with the first compartment plate 13 and the second compartment plate 14 respectively.

[0033] Thus, the cargo compartment floor 11, cargo compartment cross beam 12, first compartment plate 13 and second compartment plate 14 of the cargo compartment system 10 are respectively connected to the gantry outer frame 20 through the first group of connecting parts 50, the second group of connecting parts 60, the third group of connecting parts 70 and the fourth group of connecting parts 80. The first group of connecting parts 50 and the second group of connecting parts 60 realize the connection between the cargo compartment system 10 and the gantry outer frame 20 in the second direction D2, and the third group of connecting parts 70 and the fourth group of connecting parts 80 realize the connection between the cargo compartment system 10 and the gantry outer frame in the first direction D1, that is, the cargo compartment system 10 is connected in the first direction D1 and the second direction D2 respectively using the gantry outer frame 20 to form an independent frame system.

[0034] Compared with the connection method between the gantry and the cargo compartment system 10 in the prior art, on the one hand, the bottom and left and right sides of the cargo compartment system 10 of the present invention are connected to the gantry outer frame 20, which improves the structural strength and rigidity of the frame of the cargo compartment system 10 itself; on the other hand, the gantry outer frame 20 and the first compartment plate 13 and the second compartment plate 14 are locked and connected using a locking portion 81, which improves the connection stability between the gantry outer frame 20 and the first compartment plate 13 and the second compartment plate 14. When the vehicle is bumpy or vibrates during driving, it can effectively prevent the connection from loosening, further improving the connection strength between the gantry outer frame 20 and the cargo compartment system 10.

[0035] Secondly, refer to Figures 6 to 8 As shown, the present invention provides a vehicle comprising the aforementioned cargo box structure, a vehicle body frame system 30, and a cab system 40, wherein the vehicle body frame system 40 is connected to the cargo box system 10, and / or the vehicle body frame system 30 is connected to the cab system 40. The aforementioned cargo box structure is connected to the cargo box system 10 via the gantry outer frame 20, thereby increasing the structural strength of the cargo box system 10. The vehicle body frame system 30 and the cab system 40 are respectively connected to the cargo box system 10, thereby increasing the connection strength of the three main frames of the cargo box system 10, the vehicle body frame system 30, and the cab system 40, thereby improving the modal stiffness of the entire vehicle and the torsional stiffness of the vehicle body.

[0036] In the embodiments provided in this application, refer to Figures 6 to 8 As shown, the vehicle body frame system 30 includes a frame crossbeam 31, a rear back plate lower crossbeam 32 and two beams 33. The frame crossbeam 31 extends along the second direction D2 to play a role of lateral support. The two beams 33 are respectively connected to the opposite ends of the frame crossbeam 31 in the second direction D2, and the two beams 33 extend along the first direction D1. The two beams 33 play a role of longitudinally supporting the cargo compartment system 10. The rear back plate lower crossbeam 32 is located above the frame crossbeam 31 in the direction of gravity, so that the rear back plate lower crossbeam 32 can provide support in the direction of gravity. Through the dual support of the frame crossbeam 31 and the rear back plate lower crossbeam 32, and the longitudinal load-bearing capacity of the beam 33, a stable frame structure is formed, which can effectively resist lateral and longitudinal loads and ensure the stability of the cargo compartment system 10 during driving.

[0037] In order to improve the connection strength between the cargo compartment system 10 and the vehicle body frame system 30, in the first direction D1, the cargo compartment system 10 is connected to the lower cross beam 32 of the back plate, and the vehicle body frame system 30 also includes a beam cover plate 34, which is arranged on the beam 33. The beam cover plates 34 include two, and the two beam cover plates 34 are respectively arranged at the opposite ends of the beam 33 in the second direction D2. The beam cover plates 34 are connected to the lower cross beam 32 of the back plate, and a cargo compartment mounting point 35 is provided on the beam cover plate 34. The cargo compartment system 10 is connected to the vehicle body frame system 30 through the cargo compartment mounting point 35. After the cargo compartment system 10 is connected to the lower cross beam 32 of the back plate, it can be supported on the two cargo compartment mounting points 35, and the cargo compartment system 10 is fixed to the cargo compartment mounting point 35 by fasteners such as bolts, thereby further improving the connection strength between the cargo compartment system 10 and the vehicle body frame system 30.

[0038] Reference Figure 6 As shown, after the cargo box system 10 is connected to the vehicle body frame system 30, the connection between the cargo box system 10 and the lower cross beam 32 of the rear back panel forms a T-shaped connection structure with the beam cover plate 34. The carrying capacity of the cargo box system 10 can be transmitted to the vehicle body frame system 30 through the beam cover plate 34, thereby effectively sharing the carrying capacity of the cargo box system 10 and increasing the overall torsional stiffness performance of the vehicle body.

[0039] Further, refer to Figure 1 and Figure 7 As shown, the cab system 40 includes a cab rear panel 41 and side panels 42 . The cab rear panel 41 is welded to the lower cross beam 32 of the rear back panel. The connection between the cab rear panel 41 and the lower cross beam 32 of the rear back panel enables the cab system 40 to be connected to the vehicle body frame system 30 .

[0040] To enhance the connection strength between the cab system 40 and the vehicle body frame system 30, the cab system 40 further includes side panels 42. In the second direction D2, side panels 42 are provided at both ends of the cab rear panel 41, and opposite ends of the rear back panel lower cross member 32 are connected to corresponding side panels 42. Specifically, in the first direction D1, one end of the rear back panel lower cross member 32 is bolted to the corresponding side panel 42. Thus, by connecting the cab rear panel 41 and the side panels 42 to the rear back panel lower cross member 32, the cab system 40 and the vehicle body frame system 30 are connected in both the first and second directions D1 and D2, thereby enhancing the connection strength between the cab system 40 and the vehicle body frame system 30.

[0041] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the scope of implementation of the present invention is not limited to what is shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the scope of protection of the present invention.

Claims

1. A cargo compartment structure, characterized in that: include: A cargo compartment system, the cargo compartment system comprising a cargo compartment floor, a cargo compartment cross beam, a first compartment plate, and a second compartment plate, the cargo compartment cross beam being disposed at one end of the cargo compartment floor in a first direction, the first compartment plate and the second compartment plate being disposed on opposite sides of the cargo compartment floor in a second direction, the first direction being orthogonal to the second direction; a gantry outer frame, wherein the gantry outer frame extends to the lower portion of the cargo compartment floor in the direction of gravity; A connecting member assembly, wherein the gantry outer frame is respectively connected to the cargo compartment floor, the cargo compartment cross beam, the first compartment plate and the second compartment plate through the connecting member assembly, so that the cargo compartment system and the gantry outer frame form a frame.

2. The cargo compartment structure according to claim 1, characterized in that: The connecting member assembly includes four groups, the gantry outer frame is connected to the cargo compartment floor through the first group of connecting members, the cargo compartment cross beam is connected to the first group of connecting members through the second group of connecting members, the gantry outer frame is connected to the side of the cargo compartment floor through the third group of connecting members, and the first compartment plate and the second compartment plate are both connected to the gantry outer frame through the fourth group of connecting members.

3. The cargo compartment structure according to claim 2, characterized in that: The first group of connecting parts includes connecting columns, and the connecting columns are provided at the opposite ends of the cargo compartment floor in the second direction, and the two connecting columns are both connected to the gantry outer frame.

4. The cargo compartment structure according to claim 3, characterized in that: The second group of connecting members includes a triangular connecting plate, one side of the triangular connecting plate is connected to the cargo compartment cross beam, and the other side of the triangular connecting plate is connected to the connecting column.

5. The cargo compartment structure according to claim 2, characterized in that: The third group of connecting parts includes a foot pedal, which includes a first side and a second side. The first side is connected to the gantry outer frame, and the second side is connected to the side of the cargo compartment floor. The extension direction of the first side is perpendicular to the extension direction of the second side.

6. The cargo compartment structure according to claim 2, characterized in that: The fourth group of connecting parts includes a locking part, and the locking part includes a locking plate and a locking rod. The first compartment plate and the second compartment plate are both provided with the locking plate at one end in the first direction, and the gantry outer frame is provided with the locking rod at both opposite ends in the second direction. The locking plate is provided with a locking groove, and the locking rod can be clamped in the locking groove so that the gantry outer frame is locked and connected with the first compartment plate and the second compartment plate respectively.

7. A vehicle, characterized in that: The cargo compartment structure comprises the structure described in any one of claims 1 to 6, and further comprises a vehicle body frame system and a cab system, wherein the vehicle body frame system is connected to the cargo compartment system, and / or the vehicle body frame system is connected to the cab system.

8. The vehicle according to claim 7, characterized in that The vehicle body frame system includes a frame crossbeam, a rear back plate lower crossbeam and two large beams, wherein the two large beams are respectively connected to opposite ends of the frame crossbeam, and the rear back plate lower crossbeam is located above the frame crossbeam in the direction of gravity.

9. The vehicle according to claim 8, characterized in that In the first direction, the cargo compartment system is connected to the lower cross beam of the rear back panel, and the body frame system also includes a beam cover plate, which is arranged on the beam and connected to the lower cross beam of the rear back panel. A cargo compartment mounting point is provided on the beam cover plate, and the cargo compartment system is connected to the body frame system through the cargo compartment mounting point.

10. The vehicle according to claim 8, characterized in that The cab system includes a cab rear panel and side panels. The cab rear panel is welded to the lower cross beam of the back panel. In the second direction, the side panels are provided on both sides of the cab rear panel, and the opposite ends of the lower cross beam of the back panel are connected to the side panels.

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