Connecting structure and vehicle

Abstract

The utility model provides a connecting structure and a vehicle. The connecting structure is connected between a container of the vehicle and a vehicle body longitudinal beam. The connecting structure comprises a supporting piece and a supporting inner plate connected with the supporting piece, the supporting piece comprises a first supporting part and at least two second supporting parts, the first supporting part is connected with the bottom of the container, and the second supporting parts are arranged on the edge of the first supporting part and extend from the edge of the first supporting part to the direction away from the first supporting part from top to bottom; the at least two second supporting parts are connected with the vehicle body longitudinal beam, and the supporting inner plate is connected with the second supporting parts, the first supporting parts and the vehicle body longitudinal beam. The connecting structure is simple, the number of parts is small, strength is high, stability and reliability are achieved, the part development and manufacturing process is simple, the technology is simple, implementation is easy, and cost is low.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a connection structure and a vehicle. Background Art

[0002] With the rapid development of the logistics industry, the society has a strong demand for trucks, and the requirements for trucks are getting higher and higher, requiring more hauling and more profit, strong structure, lightweight body, and reliable and stable body structure in the process of transporting various goods. However, the connection structure between the cargo box mounting beam 21 and the body longitudinal beam of the current truck is complex in design, has a large number of parts, is weak in strength, is easy to crack, is difficult to implement in process, and has high cost. Utility Model Content

[0003] The present application provides a connection structure and a vehicle with a simple structure and high strength.

[0004] The present application provides a connection structure, which is connected between a cargo box and a vehicle body longitudinal beam; the connection structure includes: a support member and a support inner plate connected to the support member, the support member includes a first support portion and at least two second support portions, the first support portion is connected to the bottom of the cargo box, the second support portion is arranged at the edge of the first support portion, and extends from top to bottom and from the edge of the first support portion in a direction away from the first support portion, the at least two second support portions are connected to the vehicle body longitudinal beam, and the support inner plate is respectively connected to the second support portion, the first support portion and the vehicle body longitudinal beam.

[0005] Preferably, the first supporting portion is provided with a first mounting portion, the supporting inner plate is provided on a second mounting portion, the connecting structure further comprises a fixing member, the fixing member is assembled with the first mounting portion via the second mounting portion, and is connected to the bottom of the cargo box; wherein the fixing positions of the fixing member, the second mounting portion and the first mounting portion are staggered with the top surface of the vehicle body longitudinal beam in the width direction of the vehicle.

[0006] Preferably, in the width direction of the vehicle, the second supporting portion includes a first side and a second side that are arranged opposite to each other; the outer edge of the first side is provided with a plurality of protrusions, and the second supporting portion is connected to the top surface of the vehicle body longitudinal beam through at least one of the protrusions, and is connected to the side surface of the vehicle body longitudinal beam through at least one other of the protrusions.

[0007] Preferably, an outer edge of the second side is provided with an inclined rib, which is bent relative to the second support portion in a direction away from the first support portion, and is inclined from the first mounting portion in a direction away from the first mounting portion from top to bottom in the width direction of the vehicle.

[0008] Preferably, the second side is arranged relative to the first side and close to the first mounting portion, the first supporting portion is arranged such that one end of the first mounting portion is connected to the bottom of the cargo box, and the first supporting portion is arranged such that one end away from the first mounting portion abuts against the bottom of the cargo box.

[0009] Preferably, the thickness of the support member is at least 2 mm.

[0010] Preferably, the position where the supporting inner panel is connected to the supporting member is staggered with respect to the top surface of the vehicle body longitudinal beam in the width direction of the vehicle.

[0011] Preferably, the supporting inner panel includes a first connecting portion and a plurality of second connecting portions; the first connecting portion is connected to the bottom of the first supporting portion, the second connecting portion is arranged at the edge of the first connecting portion, and extends from top to bottom and from the edge of the first connecting portion in a direction away from the first connecting portion, the plurality of second connecting portions are connected to the vehicle body longitudinal beam, and two of the plurality of second connecting portions are connected to the second supporting portion.

[0012] Preferably, a plurality of connection reinforcement parts are provided at the connection points between the first connection part and the plurality of second connection parts, and the interior of the connection reinforcement part is a cavity.

[0013] Preferably, the thickness of the supporting inner plate is at least 2 mm.

[0014] Preferably, the connection structure further includes a support reinforcement plate connected to the support inner plate.

[0015] Preferably, the support reinforcement plate is welded to the support inner plate; the support reinforcement plate includes a support reinforcement portion and at least two reinforcement connection portions, the at least two reinforcement connection portions are arranged at the edge of the support reinforcement portion and are bent in the same direction relative to the support reinforcement portion, and the support reinforcement portion and the reinforcement connection portions are both connected to the support inner plate.

[0016] Preferably, the support reinforcement portion is provided with longitudinal reinforcement ribs, and the longitudinal reinforcement extends in the vertical direction and has a cavity inside.

[0017] Preferably, the support reinforcement portion is provided with transverse reinforcement ribs, and the transverse reinforcement ribs extend in the horizontal direction and are hollow inside.

[0018] Preferably, the thickness of the support reinforcement plate is at least 1.2 mm.

[0019] The present application also provides a vehicle, comprising:

[0020] Cargo box;

[0021] body longitudinal beams; and

[0022] As in any one of the connection structures in the above embodiments, the cargo box is connected to the longitudinal beam of the vehicle body via the connection structure.

[0023] Preferably, the vehicle body longitudinal beam extends along the traveling direction of the vehicle; the vehicle comprises a plurality of connection structures; and the plurality of connection structures are arranged at intervals in the extending direction of the vehicle body longitudinal beam.

[0024] Preferably, the vehicle comprises at least one pair of vehicle body longitudinal beams, and the pair of connecting structures provided on the pair of vehicle body longitudinal beams are symmetrically arranged.

[0025] The connection structure and vehicle provided by the embodiment of the present application are provided with a support member and a support inner plate, the connection structure uses the first support part of the support member to connect with the bottom of the cargo box, uses the second support part to connect with the longitudinal beam of the vehicle body, and uses the support inner plate to strengthen the connection between the second support part, the first support part and the longitudinal beam of the vehicle body. The connection structure is simple, has a small number of parts, high strength, stability and reliability, and the parts development and manufacturing process is simple, the process is simple, easy to implement, and the cost is low.

[0026] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Shown is a structural schematic diagram of the connection structure of the present application with the cargo box and the longitudinal beam of the vehicle body.

[0028] Figure 2 Shown Figure 1 The structural schematic diagram of the connection structure shown is connected to the vehicle body longitudinal beam.

[0029] Figure 3 Shown Figure 2 The structural exploded view of the connection structure shown is connected to the vehicle body longitudinal beam.

[0030] Figure 4 Shown Figure 2 The top view structural schematic diagram of the connection structure shown is connected to the vehicle body longitudinal beam.

[0031] Figure 5 Shown Figure 4 The cross-sectional schematic diagram of the connection structure shown is connected to the AA line of the vehicle body longitudinal beam.

[0032] Figure 6 Shown Figure 4 The cross-sectional schematic diagram of the BB line connecting the connecting structure shown is connected to the vehicle body longitudinal beam.

[0033] Reference numerals:

[0034] Vehicle body longitudinal beam 3, top surface 31, side surface 32, cargo box 2, cargo box mounting beam 21, connecting structure 1, support member 11, first supporting portion 111, second supporting portion 112, first mounting portion 113, first side edge 114, second side edge 115, protrusion 116, inclined convex rib 117, supporting inner plate 12, second mounting portion 121, first connecting portion 122, second connecting portion 123, connecting reinforcement portion 124, fixing member 13, supporting reinforcement plate 14, supporting reinforcement portion 141, reinforcing connecting portion 142, longitudinal reinforcement rib 143, transverse reinforcement rib 144. DETAILED DESCRIPTION

[0035] The connection structure and the vehicle provided by the embodiment of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other at will.

[0036] like Figure 1 As shown, the connection structure 1 is connected between the cargo box 2 and the body longitudinal beam 3 of the vehicle. The connection structure 1 is located at the bottom of the cargo box 2 and at the top of the body longitudinal beam 3, and is used to connect the bottom of the cargo box 2 and the body longitudinal beam 3. Specifically, a cargo box mounting beam 21 (or cross beam) is provided at the bottom of the cargo box 2, and the connection structure 1 is used to connect the cargo box mounting beam 21 and the body longitudinal beam 3. In this embodiment, the vehicle is illustrated by taking a micro truck as an example. In addition, the vehicle can also be other types of trucks, but is not limited to this. The body longitudinal beam 3 extends along the driving direction X1 of the vehicle. The extension direction of the cargo box mounting beam 21 is perpendicular to the extension direction of the body longitudinal beam 3, that is, the extension direction of the cargo box mounting beam 21 is the width direction X2 of the vehicle.

[0037] Combination Figures 1 to 6As shown, the connection structure 1 includes a support member 11 and a support inner plate 12 connected to the support member 11. The support member 11 connects the vehicle body longitudinal beam 3 and the cargo box mounting beam 21 in the vertical direction. The vertical direction can also be the height direction of the cargo box 2. The support member 11 includes a first support portion 111 and at least two second support portions 112. The first support portion 111 is connected to the bottom of the cargo box 2, and the second support portion 112 is arranged at the edge of the first support portion 111. The second support portion 112 extends from top to bottom, from the edge of the first support portion 111 in a direction away from the first support portion 111. The second support portion 112 extends obliquely from top to bottom, from the edge of the first support portion 111 in a direction away from the first support portion 111. At least two second support portions 112 are connected to the vehicle body longitudinal beam 3. In this embodiment, the first support portion 111 extends horizontally and contacts the bottom surface of the cargo box mounting beam 21. Two second support portions 112 are arranged, and the two second support portions 112 are located on both sides of the first support portion 111 and are bent relative to the first support portion 111. The second support portion 112 is bent downward from the edge of the first support portion 111 to connect to the vehicle body longitudinal beam 3. The support inner plate 12 is respectively connected to the second support portion 112, the first support portion 111 and the vehicle body longitudinal beam 3. In this embodiment, the support inner plate 12 is arranged on the inner side of the support member 11 to strengthen the strength of the support member 11.

[0038] In the above scheme, the connection structure 1 is provided with a support member 11 and a support inner plate 12, the first support portion 111 of the support member 11 is connected to the bottom of the cargo box 2, the second support portion 112 is connected to the vehicle body longitudinal beam 3, and the support inner plate 12 is used to strengthen the connection between the second support portion 112, the first support portion 111 and the vehicle body longitudinal beam 3. The connection structure 1 has a simple structure, a small number of parts, high strength, stability and reliability, and a simple part development and manufacturing process, a simple process, easy implementation, and low cost.

[0039] exist Figure 1 to Figure 2In the illustrated embodiment, the first support portion 111 is provided with a first mounting portion 113, the supporting inner plate 12 is provided at the second mounting portion 121, and the connection structure 1 further comprises a fixing member 13, the fixing member 13 is assembled with the first mounting portion 113 through the second mounting portion 121, and is connected to the bottom of the cargo box 2. Specifically, the fixing member 13 is assembled with the first mounting portion 113 through the second mounting portion 121, and is connected to the bottom of the cargo box mounting beam 21. In some embodiments, the fixing member 13 may be a bolt or other fastener. Both the first mounting portion 113 and the second mounting portion 121 may be mounting holes, and the fixing member 13 is fastened and connected to the bottom of the cargo box mounting beam 21 through two mounting holes in sequence. The assembly structure and assembly method are simple, and the fixing effect is stable and reliable. In this embodiment, the fixing positions of the fixing member 13, the second mounting portion 121 and the first mounting portion 113 are in the width direction X2 of the vehicle, and are staggered with the top surface of the vehicle body longitudinal beam 3. Such an arrangement facilitates the assembly or disassembly of the fixing member 13, the assembly method is simple, and the fixing result is stable and reliable.

[0040] exist Figures 1 to 3 In the illustrated embodiment, in the width direction X2 of the vehicle, the second support portion 112 includes a first side edge 114 and a second side edge 115 that are arranged opposite to each other. The first side edge 114 and the second side edge 115 are distributed in the extension direction of the cargo box mounting beam 21. The outer edge of the first side edge 114 is provided with a plurality of protrusions 116, and the second support portion 112 is connected to the top surface 31 of the vehicle body longitudinal beam 3 through at least one protrusion 116, and is connected to the side surface 32 of the vehicle body longitudinal beam 3 through at least one other protrusion 116. The protrusion 116 can be provided with welding points, and the second support portion 112 is welded to the top surface 31 of the vehicle body longitudinal beam 3 through one or more welding points. The second support portion 112 is welded to the side surface 32 of the vehicle body longitudinal beam 3 through one or more welding points. In this way, the support member 11 is provided with a plurality of different welding positions through the second support portion 112 to achieve welding with different surfaces of the vehicle body longitudinal beam 3, thereby ensuring the connection stability, and the connection method is simple and low in cost.

[0041] exist Figures 1 to 3 In the illustrated embodiment, the outer edge of the second side 115 is provided with an inclined convex rib 117. The inclined convex rib 117 is bent relative to the second support portion 112 in a direction away from the first support portion 111, and is inclined from top to bottom in the width direction X2 of the vehicle from the first mounting portion 113 in a direction away from the first mounting portion 113. In this way, the inclined convex rib 117 is provided on the outer edge of the second side 115, so as to ensure the strength of the second support portion 112 while reducing the number of parts, and the structure is simple.

[0042] exist Figures 1 to 3In the illustrated embodiment, the second side edge 115 is arranged near the first mounting portion 113 relative to the first side edge 114. One end of the first mounting portion 113 arranged on the first support portion 111 is connected to the bottom of the cargo box 2, and one end of the first support portion 111 away from the first mounting portion 113 abuts against the bottom of the cargo box 2. Specifically, one end of the first mounting portion 113 arranged on the first support portion 111 is connected to the bottom of the cargo box mounting beam 21, and one end of the first support portion 111 away from the first mounting portion 113 abuts against the bottom of the cargo box 2. Such an arrangement facilitates assembly in one side direction of the vehicle body longitudinal beam 3, facilitates assembly or disassembly, and is stable and reliable.

[0043] exist Figures 1 to 3 In the embodiment shown, the maximum dimension of the end of the second support portion 112 connected to the first support portion 111 is greater than the maximum dimension of the end of the second support portion 112 connected to the vehicle body longitudinal beam 3. This arrangement allows sufficient space to be left when the support member 11 and the support inner panel 12 are assembled through the fixing member 13, which facilitates operation and improves operational convenience. Figures 1 to 3 In the illustrated embodiment, the two second support portions 112 located on both sides of the first support portion 111 are symmetrically inclined relative to the first support portion 111 to ensure good fixing stability.

[0044] It should be noted that, in order to ensure stable and reliable fixation and balanced installation stress, in this embodiment, the structures of the two second support parts 112 located on both sides of the first support part 111 are set to be the same. For details, please refer to the above and will not be repeated here. In some other embodiments, the structures of the two second support parts 112 located on both sides of the first support part 111 can also be set to be different, which is not limited in this application.

[0045] exist Figures 1 to 3 In the illustrated embodiment, the position where the support inner panel 12 is connected to the support member 11 is staggered with the top surface 31 of the vehicle body longitudinal beam 3 in the width direction X2 of the vehicle. That is, the position where the fixing member 13 fixes the support inner panel 12 and the support member 11 can avoid the top surface 31 of the vehicle body longitudinal beam 3. Such a setting facilitates the installation of the support inner panel 12 and improves the convenience of operation.

[0046] exist Figures 1 to 3In the illustrated embodiment, the support inner plate 12 includes a first connection portion 122 and a plurality of second connection portions 123. The first connection portion 122 is connected to the bottom of the first support portion 111. The structures and sizes of the first connection portion 122 and the first support portion 111 are adapted. The second connection portion 123 is provided at the edge of the first connection portion 122, and extends from top to bottom and from the edge of the first connection portion 122 in a direction away from the first connection portion 122. The bending angles and sizes of the second connection portion 123 and the second support portion 112 are adapted. The plurality of second connection portions 123 are connected to the vehicle body longitudinal beam 3, and two of the plurality of second connection portions 123 are connected to the second support portion 112. The support inner plate 12 is welded to the support member 11, and the first connection portion 122 and the plurality of second connection portions 123 are provided to respectively support the first support portion 111 and the second support portion 112, thereby increasing the support strength of the support member 11, and the structure has few parts and low cost.

[0047] exist Figures 1 to 3 In the illustrated embodiment, a plurality of connection reinforcement parts 124 are provided at the connection between the first connection part 122 and the plurality of second connection parts 123, and the interior of the connection reinforcement parts 124 is a cavity. The plurality of connection reinforcement parts 124 are provided at the connection between the first connection part 122 and the plurality of second connection parts 123, so as to increase the strength of the connection between the first connection part 122 and the second connection part 123. The connection reinforcement part 124 is provided at the bottom surface of the connection between the first connection part 122 and the second connection part 123, so as to effectively utilize the space of the bending at the connection. And the interior of the connection reinforcement part 124 is provided as a cavity, so as to improve the strength effect of the connection.

[0048] exist Figures 1 to 3 In the embodiment shown, the connection structure 1 further includes a support reinforcement plate 14 connected to the support inner plate 12. In this arrangement, the support member 11 not only adds the support inner plate 12, but also reinforces the support inner plate 12 through the support reinforcement plate 14, so that the structural strength is high and the connection is stable and reliable.

[0049] exist Figures 1 to 3 In the illustrated embodiment, the support reinforcement plate 14 is welded to the support inner plate 12. The welding connection provides good stability. The support reinforcement plate 14 includes a support reinforcement portion 141 and at least two reinforcement connection portions 142. The at least two reinforcement connection portions 142 are arranged at the edge of the support reinforcement portion 141 and are bent in the same direction relative to the support reinforcement portion 141. The support reinforcement portion 141 and the reinforcement connection portion 142 are both connected to the support inner plate 12. The second connection portion 123 of the support inner plate 12 in the extension direction of the vehicle body longitudinal beam 3 is increased by the support reinforcement portion 141, so that the strength of the support inner plate 12 in the extension direction of the vehicle body longitudinal beam 3 is increased, so that the structural strength is high, and the number of components is reduced on the basis of meeting the strength, thereby reducing the cost.

[0050] exist Figures 1 to 3 In the embodiment shown, the support reinforcement part 141 is connected to the cargo box mounting beam 21 and the vehicle body longitudinal beam 3 in the vertical direction. The support reinforcement part 141 is provided with a longitudinal reinforcement rib 143, which extends in the vertical direction and has a cavity inside. In this way, the strength of the support reinforcement plate 14 in the vertical direction is increased. The interior of the longitudinal reinforcement rib 143 is set as a cavity, so that the stability of the increased strength is good.

[0051] exist Figures 1 to 3 In the illustrated embodiment, the support reinforcement portion 141 is connected to the second connection portion 123. The support reinforcement portion 141 is provided with a transverse reinforcement rib 144, which extends in the horizontal direction and has a cavity inside. In this way, the strength of the support reinforcement plate 14 in the horizontal direction is increased, and the strength between the two second connection portions 123 arranged in the extension direction of the vehicle body longitudinal beam 3 can also be increased. The interior of the transverse reinforcement rib 144 is set as a cavity, so that the stability of the increased strength is good.

[0052] exist Figures 1 to 3 In the illustrated embodiment, the support member 11 , the support inner plate 12 and the support reinforcement plate 14 can all be sheet metal parts formed by integral stamping, and the parts forming process is simple, welding is easy to implement, and the cost is low.

[0053] In actual application, the support member 11, the support inner plate 12 and the support reinforcing plate 14 are first welded together, and then welded to the longitudinal beam 3 of the vehicle body. Finally, the welded structure is assembled with the cargo box mounting beam 21 through the fixing member 13. This assembly method is simple. The connection structure 1 is provided with the support member 11, the support inner plate 12 and the support reinforcing plate 14, and the strength in various directions such as the vertical direction and / or the extension direction of the cargo box mounting beam 21 and / or the extension direction of the vehicle body longitudinal beam 3 is strengthened, so that the connection structure 1 has a simple structure, a small number of parts, high strength, stability and reliability, and a simple parts development and manufacturing process, a simple process, easy implementation, and low cost.

[0054] exist Figures 4 to 6 In the embodiment shown, the support member 11 is an integrally formed sheet metal member. The thickness H1 of the support member 11 is at least 2 mm. The thickness of the support member 11 should not be set too thick, nor too thin. If it is set too thick, the weight and volume are large, and the cost is high. If it is set too thin, the hardness does not meet the requirements. Therefore, in this embodiment, the thickness of the support member 11 is set to at least 2 mm. In this way, the weight and volume are reduced, the cost is reduced, and the operation is easy while ensuring that the hardness requirements can be met.

[0055] exist Figures 4 to 6In the embodiment shown, the thickness H2 of the supporting inner plate 12 is at least 2 mm. The thickness of the supporting inner plate 12 should not be set too thick, nor too thin. If it is set too thick, the weight and volume will be large, and the cost will be high. If it is set too thin, the hardness will not meet the requirements. Therefore, in this embodiment, the thickness of the supporting inner plate 12 is set to at least 2 mm. In this way, the weight and volume can be reduced, the cost can be reduced, and the operation is convenient while ensuring that the hardness requirements can be met.

[0056] exist Figures 4 to 6 In the embodiment shown, the thickness H3 of the support reinforcement plate 14 is at least 1.2 mm. The thickness of the support reinforcement plate 14 should not be set too thick or too thin. If it is set too thick, the weight and volume will be large and the cost will be high. If it is set too thin, the hardness will not meet the requirements. Therefore, in this embodiment, on the basis of setting the support member 11 and the support inner plate 12, the thickness of the support inner plate 12 can be set to at least 1.2 mm. In this way, the weight and volume can be reduced, the cost can be reduced, and the operation is convenient while ensuring that the hardness requirements can be met.

[0057] The present application also provides a vehicle, comprising Figures 1 to 6 The connecting structure 1, cargo box and vehicle body longitudinal beam 3 shown in the embodiment, the cargo box 2 is connected to the vehicle body longitudinal beam 3 through the connecting structure 1. Specifically, a cargo box mounting beam 21 is provided at the bottom of the cargo box, and the connecting structure 1 is used to connect the cargo box mounting beam 21 and the vehicle body longitudinal beam 3. In this embodiment, the vehicle includes a plurality of connecting structures 1. By setting a plurality of connecting structures 1, the vehicle body structure is reliable and stable during the transportation of various goods. In some embodiments, a plurality of connecting structures 1 are arranged at intervals in the extension direction X1 of the vehicle body longitudinal beam 3. Arranging a plurality of connecting structures 1 on the vehicle body longitudinal beam 3 improves stability. In some embodiments, the vehicle includes at least one pair of vehicle body longitudinal beams 3, and a pair of connecting structures 1 arranged on a pair of vehicle body longitudinal beams 3 are symmetrically arranged. With such an arrangement, the connection stability between the vehicle body longitudinal beam 3 and the cargo box mounting beam 21 is good.

[0058] In actual application, the connection structure 1 and the vehicle body longitudinal beam 3 are first welded into a vehicle body assembly, and then the cargo box 2 is installed on the cargo box mounting beam 21 by bolts, and finally the cargo box 2 and the cargo box mounting beam 21 are fixedly connected to the vehicle body assembly as a whole through the connection structure 1. This assembly method is simple. In the above scheme, by setting the connection structure 1 between the cargo box mounting beam 21 and the vehicle body longitudinal beam 3, the cargo box 2 is effectively supported and fixed, with high strength and good processability, meeting the requirements of full load extreme road conditions, and is welded by three stamping parts, spot welding is easy to implement, and the assembly fixing bolts of the cargo box are easy to operate.

[0059] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A connection structure connected between a cargo box and a longitudinal beam of a vehicle body; characterized in that: The connection structure includes: a support member and a support inner plate connected to the support member, the support member includes a first support portion and at least two second support portions, the first support portion is connected to the bottom of the cargo box, the second support portion is arranged at the edge of the first support portion, and extends from top to bottom and from the edge of the first support portion in a direction away from the first support portion, the at least two second support portions are connected to the vehicle body longitudinal beam, and the support inner plate is respectively connected to the second support portion, the first support portion and the vehicle body longitudinal beam.

2. The connection structure according to claim 1, characterized in that: The first supporting portion is provided with a first mounting portion, the supporting inner plate is provided on a second mounting portion, the connecting structure further comprises a fixing member, the fixing member is assembled with the first mounting portion via the second mounting portion, and is connected to the bottom of the cargo box; wherein the fixing positions of the fixing member, the second mounting portion and the first mounting portion are staggered with the top surface of the vehicle body longitudinal beam in the width direction of the vehicle.

3. The connection structure according to claim 2, characterized in that: In the width direction of the vehicle, the second supporting portion includes a first side edge and a second side edge that are arranged opposite to each other; The outer edge of the first side is provided with a plurality of protrusions, the second support portion is connected to the top surface of the vehicle body longitudinal beam through at least one of the protrusions, and is connected to the side surface of the vehicle body longitudinal beam through at least one other of the protrusions; and / or An outer edge of the second side is provided with an inclined convex rib, the inclined convex rib is bent relative to the second supporting portion in a direction away from the first supporting portion, and is inclined from the first mounting portion to the direction away from the first mounting portion from top to bottom in the width direction of the vehicle; and / or The second side is arranged relative to the first side and close to the first mounting portion, the first supporting portion is provided with one end of the first mounting portion connected to the bottom of the cargo box, and the first supporting portion is away from the first mounting portion and abuts against the bottom of the cargo box; and / or The thickness of the support member is at least 2 mm.

4. The connection structure according to claim 1, characterized in that: The position where the support inner panel is connected to the support member is staggered with respect to the top surface of the vehicle body longitudinal beam in the width direction of the vehicle.

5. The connection structure according to claim 4, characterized in that: The supporting inner plate includes a first connecting portion and a plurality of second connecting portions; The first connection portion is connected to the bottom of the first supporting portion, the second connection portion is provided at the edge of the first connection portion and extends from top to bottom and from the edge of the first connection portion in a direction away from the first connection portion, the plurality of second connection portions are connected to the vehicle body longitudinal beam, and two of the plurality of second connection portions are connected to the second supporting portion; and / or A plurality of connection reinforcement parts are provided at the connection between the first connection part and the plurality of second connection parts, and the interior of the connection reinforcement part is a cavity; and / or The thickness of the supporting inner plate is at least 2 mm.

6. The connection structure according to claim 1, characterized in that: The connection structure also includes a support reinforcement plate connected to the support inner plate.

7. The connection structure according to claim 6, characterized in that: The support reinforcement plate is welded to the support inner plate; the support reinforcement plate includes a support reinforcement portion and at least two reinforcement connection portions, the at least two reinforcement connection portions are arranged at the edge of the support reinforcement portion and are bent in the same direction relative to the support reinforcement portion, and the support reinforcement portion and the reinforcement connection portions are both connected to the support inner plate.

8. The connection structure according to claim 7, characterized in that: The support reinforcement portion is provided with longitudinal reinforcement ribs, the longitudinal reinforcement ribs extend in the vertical direction and are hollow inside; and / or The support reinforcement portion is provided with transverse reinforcement ribs, the transverse reinforcement ribs extend in the horizontal direction and are hollow inside; and / or The thickness of the support reinforcement plate is at least 1.2 mm.

9. A vehicle, characterized in that: include: Cargo box; body longitudinal beams; and According to the connection structure as described in any one of claims 1 to 8, the cargo box is connected to the vehicle body longitudinal beam through the connection structure.

10. The vehicle according to claim 9, characterized in that The vehicle body longitudinal beam extends along the driving direction of the vehicle; the vehicle includes a plurality of connection structures; The plurality of connection structures are arranged at intervals in the extension direction of the vehicle body longitudinal beam; and / or The vehicle comprises at least one pair of vehicle body longitudinal beams, and a pair of the connection structures arranged on the pair of vehicle body longitudinal beams are symmetrically arranged.

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