Commercial vehicle body-in-white floor assembly and vehicle

Abstract

The invention provides a commercial vehicle body-in-white floor assembly and a vehicle, and relates to the technical field of automobile manufacturing. The commercial vehicle body-in-white floor assembly comprises a mounting bottom plate body and a plurality of mounting plate positions, wherein the mounting bottom plate body is provided with a plurality of mounting plate positions; the floor assembly is connected with the mounting bottom plate body, the floor assembly at least comprises a middle floor, the middle floor comprises a first splicing plate body, a second splicing plate body and a third splicing plate body, and the first splicing plate body has a first mounting state in which the first splicing plate body is connected with the second splicing plate body and is mounted at the mounting plate position; the first splicing plate body has a second mounting state in which the first splicing plate body is connected with the third splicing plate body and is mounted at the mounting plate position, the second splicing plate body has a third mounting state in which the second splicing plate body is connected with the third splicing plate body and is mounted at the mounting plate position, and the second splicing plate body has a dismounting state in which the second splicing plate body is separated from the first splicing plate body and the third splicing plate body. The problem that in the prior art, if brand-new design parts are adopted during development of a body-in-white, the investment of a re-added mold is increased is solved.

Description

Technical Field

[0001] This invention relates to the field of automotive manufacturing technology, and more specifically, to a commercial vehicle body-in-white floor assembly and vehicle. Background Technology

[0002] Commercial vehicles have diverse requirements for cab interior space, passability, and cab height due to varying market demands. This leads to a variety of floor designs for the body-in-white to cover more market scenarios. In terms of length, these include extended cabs and semi-extended cabs. In terms of height, depending on the height of the center floor, these are categorized as flat floor, semi-flat floor, and raised floor. Developing all of these floor designs with entirely new components would result in increased investment in re-molding.

[0003] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a commercial vehicle body-in-white floor assembly and vehicle, in order to solve the problem that if all newly designed parts are used in the development of the body-in-white in the prior art, the investment in re-molding will increase.

[0005] To achieve the above objectives, according to one aspect of the present invention, a body-in-white floor assembly is provided, comprising: a mounting base body having a plurality of mounting positions; a floor assembly connected to the mounting base body, the floor assembly including at least a middle floor, the middle floor including a first splicing plate, a second splicing plate and a third splicing plate, the first splicing plate having a first installation state connected to the second splicing plate and installed at the mounting positions, the first splicing plate having a second installation state connected to the third splicing plate and installed at the mounting positions, the second splicing plate having a third installation state connected to the third splicing plate and installed at the mounting positions, and the second splicing plate having a disassembled state separated from both the first splicing plate and the third splicing plate.

[0006] Furthermore, along the length of the vehicle body, the mounting base body has a large-cab-half state and a small-cab-half state. The length of the middle floor is set differently when the mounting base body is in different states. When the mounting base body is in the large-cab-half state, the length of the middle floor is greater than the length of the middle floor when the mounting base body is in the small-cab-half state. The mounting base body can be switched from the large-cab-half state to the small-cab-half state.

[0007] Furthermore, along the length of the vehicle body, the first splicing panel is positioned near the front end of the vehicle body, and the third splicing panel is positioned near the rear end of the vehicle body. A first connecting structure is positioned at the rear end of the first splicing panel, and a second connecting structure is positioned at the front end of the third splicing panel. A third connecting structure is positioned at one end of the second splicing panel, and a fourth connecting structure is positioned at the other end of the second splicing panel. The first, second, third, and fourth connecting structures are all one type of connecting protrusions and connecting recesses. Along the height direction of the vehicle body, the height of each connecting protrusion is set to be the same.

[0008] Furthermore, the middle floor has a first installation mode. When the middle floor is in the first installation mode, the first splicing panel is in the first installation state, and the second splicing panel is in the third installation state. The second splicing panel can be switched from the third installation state to the disassembly state by cutting, and the first splicing panel is switched to the second installation state so that the mounting base plate body is switched from the large row and half state to the small row and half state.

[0009] Furthermore, the middle floor has a second installation mode. When the middle floor is in the second installation mode, the first splicing plate is in the second installation state. The third splicing plate is provided with at least one overlapping protrusion structure. The overlapping protrusion structure extends along the width direction of the vehicle body, and cutting flanges are formed on both sides of the overlapping protrusion structure. The overlapping protrusion structure can be cut and disassembled along the cutting flanges so that the mounting base plate body can be switched from the large half-cab state to the small half-cab state.

[0010] Furthermore, along the vehicle height direction, when the middle floor is in different installation modes, the height of at least one of the second and third splicing panels is set differently.

[0011] Furthermore, the floor assembly also includes side floors, which are connected to the mounting base body. The side floors are located at a mounting plate position, which is adjacent to the mounting plate position of the middle floor. There are multiple side floors. Along the width direction of the vehicle body, each side of the middle floor is connected to a side floor, and the other side of the side floor is connected to the front crossbeam. The side floors include long side floors and short side floors. When the mounting base body is in the large half-cab position, the long side floor is connected to the middle floor. When the mounting base body is in the small half-cab position, the short side floor is connected to the middle floor.

[0012] Furthermore, the first splicing panel includes a first connecting section and a first protruding section. The first protruding section is connected to the first connecting section. The first connecting section extends along the length of the vehicle body and connects with any one of the second splicing panel and the third splicing panel. The first protruding section forms a first protruding structure upward along the height of the vehicle body. The side of the first protruding structure away from the chassis forms a reinforcing cavity with the inner panel of the front crossbeam and the outer panel of the front crossbeam. The first protruding structure forms an avoidance space close to the inner side of the vehicle body.

[0013] Furthermore, the third splicing panel includes a second connecting segment and a third connecting segment. The third connecting segment is connected to the second connecting segment. The second connecting segment extends along the length of the vehicle body and connects to either the second splicing panel or the first connecting segment. The third connecting segment forms a second protruding structure upward along the height of the vehicle body. Alternatively, the third connecting segment is connected flush with the first and second connecting segments. When the third connecting segment forms the second protruding structure, an installation space is formed between the side of the second protruding structure near the chassis and the chassis. The installation space is used to install body parts.

[0014] According to another aspect of the present invention, a vehicle is provided having a commercial vehicle body-in-white floor assembly, the commercial vehicle body-in-white floor assembly being the aforementioned commercial vehicle body-in-white floor assembly.

[0015] By applying the technical solution of this invention, the connection method can be flexibly adjusted according to different installation states and requirements through the flexible combination of the first, second, and third splicing panels of the floor. The first splicing panel is connected to the second or third splicing panel and installed to different mounting positions on the mounting base plate body to form multiple floor configurations. The second splicing panel also has multiple states of being connected to or separated from the first and third splicing panels. Without adding extra parts, the floor length and height requirements of different vehicle models can be met, reducing the types of parts and mold investment, effectively controlling production costs, and improving production efficiency. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A schematic diagram of the structure of a first embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 2 A schematic diagram of a second embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 3 A structural schematic diagram of a third embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 4 A structural schematic diagram of a fourth embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 5 A structural schematic diagram of a fifth embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 6 A schematic diagram of a sixth embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 7A structural schematic diagram of a seventh embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 8 A structural schematic diagram of an eighth embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 9 A structural schematic diagram of a ninth embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 10 A structural schematic diagram of a tenth embodiment of the body-in-white floor assembly according to the present invention is shown; Figure 11 A schematic diagram of the structure of the eleventh embodiment of the body-in-white floor assembly according to the present invention is shown.

[0017] The above figures include the following reference numerals: 10. Middle floor; 100. Reinforcing cavity; 11. First splicing panel; 111. First connecting structure; 112. First connecting section; 113. First protruding section; 12. Second splicing panel; 121. Third connecting structure; 122. Fourth connecting structure; 13. Third splicing panel; 131. Second connecting structure; 132. Overlapping protruding structure; 133. Cutting flange; 134. Second connecting section; 135. Third connecting section; 14. Reinforcing rib; 20. Front crossbeam; 200. Clearance space; 21. Inner plate of the crossbeam; 22. Outer plate of the crossbeam; 30. Edge floor; 300. Floor longitudinal beam; 301. Longitudinal beam reinforcement plate; 40. Central reinforcement plate; 410. Seat mounting points. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0022] Combination Figures 1 to 11 As shown, according to a specific embodiment of this application, a commercial vehicle body-in-white floor assembly is provided.

[0023] Specifically, such as Figure 1 and Figure 2 As shown, the commercial vehicle body-in-white floor assembly includes a mounting base body and a floor assembly. The mounting base body has multiple mounting positions. The floor assembly is connected to the mounting base body and includes at least a middle floor 10. The middle floor 10 includes a first splicing plate 11, a second splicing plate 12, and a third splicing plate 13. The first splicing plate 11 has a first installation state where it is connected to the second splicing plate 12 and installed in the mounting position. The first splicing plate 11 has a second installation state where it is connected to the third splicing plate 13 and installed in the mounting position. The second splicing plate 12 has a third installation state where it is connected to the third splicing plate 13 and installed in the mounting position. The second splicing plate 12 also has a disassembled state where it is separated from both the first splicing plate 11 and the third splicing plate 13.

[0024] By applying the technical solution of this embodiment, the connection method can be flexibly adjusted according to different installation states and requirements through the flexible combination of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13 of the middle floor 10. The first splicing plate 11 is connected to the second splicing plate 12 or the third splicing plate 13 and installed to different installation positions of the mounting base plate body to form multiple floor configurations. The second splicing plate 12 also has multiple states of being connected or separated from the first splicing plate 11 and the third splicing plate 13. Without adding extra parts, the floor length and height requirements of different vehicle models can be met, reducing the types of parts and mold investment, effectively controlling production costs, and improving production efficiency.

[0025] Specifically, along the length of the vehicle body, the mounting base has a large-cab configuration and a small-cab configuration. The length of the middle floor 10 differs depending on the mounting base's configuration. When the mounting base is in the large-cab configuration, the length of the middle floor 10 is greater than when it is in the small-cab configuration. The mounting base can switch between the large-cab and small-cab configurations. The length of the middle floor 10 can be differentiated according to the different configurations. When the mounting base is in the large-cab configuration, the middle floor 10 needs to be longer, while when switching from the large-cab to the small-cab configuration, the length of the middle floor 10 is correspondingly shortened. Without adding any extra parts, the mounting base can be switched from the large-cab to the small-cab configuration simply by changing the length of the middle floor 10 and the installation states of the first splicing plate 11, the second splicing plate 12, and the third splicing plate 13. It effectively reduces mold investment and production costs, increases the standardization rate of parts, and can meet different requirements for cab interior space, passability, and height.

[0026] Furthermore, such as Figure 7As shown, along the length of the vehicle body, the first splicing panel 11 is positioned near the front end of the vehicle body, and the third splicing panel 13 is positioned near the rear end of the vehicle body. A first connecting structure 111 is located at the rear end of the first splicing panel 11, and a second connecting structure 131 is located at the front end of the third splicing panel 13. A third connecting structure 121 is located at one end of the second splicing panel 12, and a fourth connecting structure 122 is located at the other end of the second splicing panel 12. The first connecting structure 111, the second connecting structure 131, the third connecting structure 121, and the fourth connecting structure 122 are all either connecting protrusions or connecting recesses. Along the height direction of the vehicle body, the height of each connecting protrusion is consistent, ensuring the continuity and structural integrity of the floor after cutting and during splicing. It simplifies the manufacturing process of floor components, enhances their ability to adapt to different vehicle lengths, and reduces mold investment and production costs caused by changes in vehicle models.

[0027] Specifically, such as Figure 7 , Figure 10 As shown, the middle floor 10 has a first installation mode. When the middle floor 10 is in the first installation mode, the first splicing panel 11 is in the first installation state, and the second splicing panel 12 is in the third installation state. The second splicing panel 12 can be switched from the third installation state to the disassembly state by cutting operations, and the first splicing panel 11 is switched to the second installation state so that the mounting base plate body is switched from the large row and half state to the small row and half state.

[0028] In the first installation mode, the middle floor 10 consists of a first splicing panel 11, a second splicing panel 12, and a third splicing panel 13. At this time, the first splicing panel 11 is in the first installation state, with the first connecting structure 111 connected to the third connecting structure 121, and the fourth connecting structure 122 connected to the second connecting structure 131. That is, the first splicing panel 11, the second splicing panel 12, and the third splicing panel 13 are connected sequentially from front to back. At this time, the second splicing panel 12 can be switched from the third installation state to the disassembly state through a cutting operation. After the second splicing panel 12 is separated, the first splicing panel 11 needs to be switched from the first installation state to the second installation state, so that the first connecting structure 111 of the first splicing panel 11 connects to the second connecting structure 131 of the third splicing panel 13. In this way, the middle floor 10 can be transformed from a large-cab configuration to a small-cab configuration, meeting the flexible adaptability required by different vehicle configurations.

[0029] It should be noted that the first installation state refers to the configuration where the mounting base body is complete and relatively long, with the first splicing panel 11 connected to other floor components. When it is necessary to change the mounting base body from a large-cab configuration to a small-cab configuration, i.e., to reduce the length of the mounting base body to adapt to different vehicle models, the first splicing panel 11 can be switched from the first installation state to the second installation state, while the second splicing panel 12 is removed. The third installation state specifically refers to the connection state between the second splicing panel 12 and the rest of the mounting base body (including but not limited to the first splicing panel 11 and other modules of the middle floor 10) in a complete, uncut, or undisassembled condition.

[0030] Specifically, such as Figure 9 , Figure 11 As shown, the middle floor 10 has a second installation mode. When the middle floor 10 is in the second installation mode, the first splicing plate 11 is in the second installation state. The third splicing plate 13 is provided with at least one overlapping protrusion structure 132. The overlapping protrusion structure 132 extends along the width direction of the vehicle body. Cutting flanges 133 are formed on both sides of the overlapping protrusion structure 132. The overlapping protrusion structure 132 can be cut and disassembled along the cutting flanges 133 so that the mounting base plate body can be switched from the large half-row state to the small half-row state.

[0031] The middle floor 10 has a second installation mode. In this mode, the first splicing plate 11 is in the second installation state and is directly connected to the third splicing plate 13, extending along the width of the vehicle body. The third splicing plate 13 integrates at least one overlapping protrusion structure 132 and forms cutting flanges 133 on both sides. By cutting and disassembling the overlapping protrusion structure 132 along the cutting flanges 133, the corresponding length between the cutting flanges 133 on the first splicing plate 11 can be cut off. Then, the cut middle floor 10 is connected through the overlapping protrusion structure 132, which allows the mounting base plate to be converted from a large half-cab configuration to a small half-cab configuration. Without changing the original structure, the total length of the middle floor 10 can be adjusted by simple cutting to adapt to the floor length requirements of different vehicle models, thereby reducing the necessity of developing new molds and reducing investment costs.

[0032] It should be noted that by setting the overlapping protrusions 132 and their cutting flanges 133 on the first splicing panel 11 and the third splicing panel 13, the accuracy and safety of the cutting and connection process are ensured, the overall structural strength and connection rigidity of the floor are maintained, and the floor platform can still maintain good performance and durability after switching to the small half-row state, providing a flexible and efficient floor configuration solution for commercial vehicles.

[0033] Those skilled in the art should understand that the first installation mode is a connection method for the middle floor 10 when the first splicing panel 11, the second splicing panel 12, and the third splicing panel 13 are all installed in the installation position while the base plate body is being installed. The second installation mode is a connection method for the middle floor 10 when the first splicing panel 11 and the third splicing panel 13 are installed in the installation position. Both installation modes can achieve the cutting and connection method of changing the installation base plate body from a large half-row mode to a small half-row mode. When the middle floor 10 is installed using the first installation mode, the middle floor 10 uses all three splicing panels. When the installation base plate body changes from a large half-row state to a small half-row state, the second splicing panel 12 is disassembled, and the first splicing panel 11 and the third splicing panel 13 are reconnected. When the middle floor 10 is installed using the second installation mode, the middle floor 10 uses the first splicing plate 11 and the third splicing plate 13. When the installation base plate body changes from the large half-row state to the small half-row state, it is only necessary to cut off part of the first splicing plate 11 and then connect the first splicing plate 11 and the third splicing plate 13.

[0034] Specifically, along the vehicle body height direction, when the middle floor 10 is in different installation modes, the height of at least one of the second splicing plate 12 and the third splicing plate 13 is set differently. In the first installation mode, for applications requiring more internal space for the wheels, the first installation mode is selected to increase the ground clearance of the middle floor 10; while for scenarios requiring a lower center of gravity or better off-road capability on special terrains, the second installation mode can be used to lower the ground clearance of the middle floor 10. This allows the vehicle to flexibly adjust the floor height under different usage environments or customer needs, enhancing the vehicle's adaptability and versatility. At this time, the height of the first splicing plate 11 does not need to change, making the side floor and front crossbeam interchangeable. This ensures that the interfaces of the side floor, the first splicing plate 11, and the front crossbeam are identical, reducing investment in new parts. Furthermore, when determining the ground clearance of the middle floor 10, since different installation modes can be used to avoid wheel obstruction, this can be achieved simply by changing the type of splicing plate, reducing the types of floor platforms and lowering investment.

[0035] Furthermore, the floor assembly also includes a side floor 30, which is connected to the mounting base body. The side floor 30 is located at a mounting plate position, which is adjacent to the mounting plate position of the middle floor 10. There are multiple side floors 30. Along the width direction of the vehicle body, each side of the middle floor 10 is connected to a side floor 30, and the other side of the side floor 30 is connected to the front crossbeam 20. The side floor 30 includes a long side floor and a short side floor. When the mounting base body is in the large half-cab position, the long side floor is connected to the middle floor 10. When the mounting base body is in the small half-cab position, the short side floor is connected to the middle floor 10.

[0036] In this embodiment, a side floor 30 is provided along the width direction of the vehicle body and is adjacent to both sides of the middle floor 10 to form a complete floor platform structure. The side floor 30 is also divided into long side floor and short side floor, allowing for flexible adjustment of the floor platform in the length direction. That is, when the mounting base body changes from a large-cab configuration to a small-cab configuration, the side floor 30 is replaced by the corresponding short side floor. When the mounting base body is in the large-cab configuration, the long side floor is connected to the middle floor 10, while in the small-cab configuration, the short side floor is connected to the middle floor 10. This allows the floor assembly to adapt to different vehicle layout requirements, improving the platform's versatility and adaptability, simplifying the production process, and reducing manufacturing cost increases caused by different vehicle body sizes. Furthermore, the connection between the side floor 30 and the front crossbeam 20 ensures the overall rigidity and stability of the floor assembly, further optimizing the structural performance of the body-in-white.

[0037] In this embodiment, the bottom edge of the side floor 30 is at the same ground clearance as the bottom edge of the middle floor 10. This ensures the horizontal continuity and consistency of the floor platform, simplifies the manufacturing process, optimizes the utilization of vehicle interior space, provides a more spacious and flat walking area for the driver's cab, and enhances the comfort and safety of passengers.

[0038] In one embodiment of this application, such as Figure 1 and Figure 4 As shown, the floor assembly also includes a front crossbeam 20, which is connected to the mounting base plate body. The front crossbeam 20 is located at a mounting plate position adjacent to the mounting plate position of the middle floor 10. Along the length of the vehicle body, the front crossbeam 20 is located at the front of the vehicle body and is connected to the first splicing plate 11 of the middle floor 10. At least a portion of the front crossbeam 20 protrudes upward along the height of the vehicle body, forming a clearance space 200 between the front crossbeam 20 and the vehicle chassis. The clearance space 200 is used to avoid vehicle body components. The floor assembly further includes a front crossbeam 20, which is connected to the mounting base plate body and located at the front of the vehicle body, adjacent to the mounting plate position of the middle floor 10. The front crossbeam 20 is connected to the first splicing plate 11 of the middle floor 10. At least part of the front crossbeam 20 protrudes upward along the height direction of the vehicle body, forming a clearance space 200. This allows the front crossbeam 20 to effectively avoid body parts between itself and the chassis, thus optimizing the spatial layout. It also improves the rigidity and strength of the front of the floor, providing more stable support for the cab.

[0039] Specifically, such as Figure 1 , Figure 4As shown, the front crossbeam 20 includes an inner front crossbeam plate 21 and an outer front crossbeam plate 22. The inner front crossbeam plate 21 and the outer front crossbeam plate 22 are connected. At least a portion of the inner front crossbeam plate 21 extends along the width direction of the vehicle body, and at least a portion of the outer front crossbeam plate 22 extends along the width direction of the vehicle body. The inner front crossbeam plate 21, the outer front crossbeam plate 22, and a portion of the first splicing plate 11 enclose a reinforced cavity 100. The front crossbeam 20 is composed of the inner front crossbeam plate 21 and the outer front crossbeam plate 22. These two parts extend and connect along the width direction of the vehicle body, which not only enhances the rigidity and strength of the front crossbeam 20, but also, through combination with a portion of the first splicing plate 11, constructs a closed reinforced cavity 100. This significantly improves the overall rigidity of the floor front crossbeam 20, effectively disperses and absorbs loads from different directions, provides additional protection and support, and ensures the safety of the cab. At the same time, the reinforced cavity 100 also helps to optimize the weight distribution of the floor components, improving the vehicle's handling performance and fuel efficiency.

[0040] Specifically, such as Figure 3 , Figure 5 As shown, the side floor 30 and the middle floor 10 are welded together. At least one of the side floor 30 and the middle floor 10 is recessed downwards at the connection point to form a floor longitudinal beam 300. The floor longitudinal beam 300 extends along the length of the vehicle body. A longitudinal beam reinforcing plate 301 is provided on the floor longitudinal beam 300, which extends along the extension direction of the floor longitudinal beam 300. The side floor 30 and the middle floor 10 are connected by welding, and the floor longitudinal beam 300 is formed by a downward recess. The longitudinal beam 300 extends along the length of the vehicle body to enhance the rigidity and strength of the floor structure. The floor longitudinal beam 300 is provided with a longitudinal beam reinforcing plate 301, which is also arranged along the extension direction of the floor longitudinal beam 300. At the same time, the longitudinal beam reinforcing plate 301 is a roller-stamped beam, which can be flexibly changed along the length of the vehicle body to adapt to the length of the middle floor 10 when the mounting base body is in different half-mounted states, further improving the load-bearing capacity and torsional performance of the floor. It simplifies the structure of the body-in-white floor platform, reduces the number of independent parts, and also lowers production costs and assembly complexity.

[0041] In another embodiment of this application, such as Figure 1 , Figure 2As shown, the floor assembly also includes a central reinforcing plate 40, which is connected to at least one of the side floor 30 and the middle floor 10. The central reinforcing plate 40 is disposed on one side of the side floor 30 and the middle floor 10. The central reinforcing plate 40 includes a top reinforcing plate. When the middle floor 10 is in either the first installation mode or the second installation mode, the top reinforcing plate is connected to at least one of the side floor 30 and the first splicing plate body 11. The top reinforcing plate is disposed on the side of the side floor 30 and the first splicing plate body 11 away from the vehicle chassis. The central reinforcing plate 40 is connected to at least a portion of the side floor 30 and the middle floor 10, enhancing the overall rigidity and stability of the floor structure. The central reinforcing plate 40 includes a top plate reinforcing plate. When the floor 10 is in the first installation mode or the second installation mode, the top plate reinforcing plate is connected to at least a portion of the side floor 30 and the first splicing plate 11. It is located on the side away from the vehicle chassis, which helps to improve the structural rigidity of the upper surface of the floor, improve the passenger riding experience, simplify the manufacturing process, reduce production costs, and improve the interchangeability and versatility of parts.

[0042] In this embodiment, the top plate reinforcing plate protrudes upward on the side near the side floor 30 to form a raised structure. A seat mounting point 410 is provided on the side of the raised structure away from the vehicle chassis, for installing a vehicle seat. The raised structure within the floor longitudinal beam structure 21, protruding upward on the side near the side floor 30, enhances the rigidity and strength of the floor module and integrates the seat mounting point 410 for installing the vehicle seat. This reduces the need for additional components, lowers manufacturing costs, ensures stable seat installation, and improves the layout flexibility and passenger safety within the driver's cab.

[0043] Furthermore, such as Figure 1 As shown, the first splicing panel 11 includes a first connecting section 112 and a first protruding section 113. The first protruding section 113 is connected to the first connecting section 112. The first connecting section 112 extends along the length of the vehicle body and connects to any one of the second splicing panel 12 and the third splicing panel 13. The first protruding section 113 forms a first protruding structure upward along the height of the vehicle body. The side of the first protruding structure away from the chassis forms a reinforcing cavity 100 with the front crossbeam 20. The first protruding structure forms an avoidance space 200 near the inner side of the vehicle body.

[0044] In this embodiment, the first protruding section 113 is connected to the first connecting section 112. The first connecting section 112, extending along the length of the vehicle body, is connected to either the second splicing plate 12 or the third splicing plate 13, realizing modular assembly of the floor assembly. The first protruding section 113 protrudes upward along the height of the vehicle body, forming a first protruding structure. The top surface of this structure, together with the front crossbeam 20, forms a reinforcing cavity 100, enhancing the connection rigidity and strength between the front of the floor and the front crossbeam. The bottom of the first protruding structure forms a clearance space 200, ensuring that the middle floor 10 and the side floor 30 maintain good fit when the height changes, avoiding interference with components such as the radiator on the chassis. This design not only simplifies the structure of the body-in-white floor platform and improves the commonality rate of parts, reduces mold investment, but also enhances the adaptability and economy of the vehicle in different application scenarios.

[0045] Specifically, the third splicing panel 13 includes a second connecting segment 134 and a third connecting segment 135. The third connecting segment 135 is connected to the second connecting segment 134. The second connecting segment 134 extends along the length of the vehicle body and is connected to any one of the second splicing panel 12 and the first connecting segment 112. The third connecting segment 135 forms a second protruding structure upward along the height of the vehicle body. Alternatively, the third connecting segment 135 is connected flush with the first connecting segment 112 and the second connecting segment 134. When the third connecting segment 135 forms the second protruding structure, an installation space is formed between the side of the second protruding structure near the chassis and the chassis. The installation space is used to install body parts.

[0046] The third splicing panel 13 is composed of a second connecting segment 134 and a third connecting segment 135. The third connecting segment 135 is connected to the second connecting segment 134, which extends along the length of the vehicle body and connects to either the second splicing panel 12 or the first connecting segment 112. When the third connecting segment 135 forms a second protruding structure upward along the height of the vehicle body, this structure creates an installation space between itself and the vehicle chassis for installing body components. Alternatively, the third connecting segment 135 can be connected flush with the first connecting segment 112 and the second connecting segment 134, with the third connecting segment itself forming the second protruding structure, similarly creating an installation space near the vehicle chassis. This not only optimizes the installation layout of body components but also enables flexible application of the vehicle floor structure across different vehicle models, improving the universality of parts and the convenience of vehicle assembly. It effectively enhances the load-bearing capacity and stability of the floor, thereby improving the driving safety of the vehicle under complex road conditions.

[0047] According to another specific embodiment of this application, a vehicle is also provided, which has a commercial vehicle body-in-white floor assembly, the commercial vehicle body-in-white floor assembly being the aforementioned commercial vehicle body-in-white floor assembly. By combining the mounting base body with the floor assembly, and through the modular design of the middle floor 10, the vehicle can better adapt to the diverse market demands for different vehicle lengths and heights, significantly reducing mold investment costs due to the large variety of parts. The middle floor 10 is composed of a first splicing plate 11, a second splicing plate 12, and a third splicing plate 13. Without adding additional parts, it can be quickly adjusted to match different floor height requirements, not only reducing production costs and improving production efficiency, but also enhancing the overall rigidity and stability of the body-in-white, simplifying the subsequent assembly process, and improving the vehicle's market competitiveness.

[0048] This application also provides a preferred embodiment of a commercial vehicle body-in-white floor assembly, which mainly solves the problem that if all newly designed parts are used in the development of the body-in-white in the prior art, the investment in re-molding will increase.

[0049] Specifically, such as Figure 6 , Figure 8 As shown, the commercial vehicle body-in-white floor platform structure offers four types of flooring: two floor lengths and two floor protrusion heights. In the quasi-flat floor, the floor is 100mm higher than the side floor by 30mm, and in the convex floor, the floor is 200mm higher than the side floor by 30mm.

[0050] The middle floor 10 is divided into a quasi-flat floor and a raised floor. The first splicing plate 11 of the two types of middle floor 10 has the same structure, both of which protrude upwards and are welded to the inner plate 21 and outer plate 22 of the front crossbeam of the floor. At the same time, it forms a clearance space 200 to avoid the chassis radiator, ensuring that the front crossbeam 20 of the floor is universal and reducing investment.

[0051] The height of the floor protrusion changes as the height of the middle floor 10 changes, while the interface between the middle floor 10 and the side floor 30 forming the floor longitudinal beam 300 and the longitudinal beam reinforcing plate 301 remains unchanged, thus reducing the types of side floor 30.

[0052] In current market models with raised floor designs, to reduce cab height, the central floor protrudes, and to avoid wheel interference, the side floor 30 also needs to be raised at the rear to ensure the side floor beam does not interfere with the wheels. In this embodiment, the side floor beam integrated into the side floor 30 raises the rear of doorways with lower strength requirements to avoid wheel interference, eliminating the need to raise the rear of the side floor in raised floor models, reducing the types of side floor types on the floor platform, and lowering investment.

[0053] The middle floor reinforcement plate 40 of the flat floor and the convex floor is transversely arranged above the side floor 30 and the middle floor 10. The middle floor reinforcement plate 40 is inverted in a basin shape on the middle floor 10 and the side floor 30. The height on both sides is higher than that of the side floor, and the middle is flush with the middle floor, playing a role in strengthening the lateral stiffness. The raised positions on both sides of the middle floor reinforcement plate 40 integrate seat mounting points 410, which play a role in reducing the number of parts and investment.

[0054] When the middle floor 10 is in the first installation mode, the middle floor 10 adopts the first splicing plate body 11, the second splicing plate body 12 and the third splicing plate body 13. The third connection structure 121 of the second splicing plate body 12 is provided with a locally upward convex welding edge, and the rear part is kept horizontal at the welding position with the third splicing plate body 13. The second connection structure 131 of the third splicing plate body 13 and the fourth connection structure 122 of the second splicing plate body 12 are provided with the same upward convex welding edge as the third connection structure 121 of the second splicing plate body 12, ensuring that when the length of the installation bottom plate body is shortened to the small cab with a half-width bed state, the third splicing plate body 13 overlaps with the first splicing plate body 11. Ensure that no new parts are added to the middle floor 10, reducing production investment and costs.

[0055] A "丰" - shaped reinforcing rib 14 is provided in the middle of the split position of the first splicing plate body 11, the second splicing plate body 12 and the third splicing plate body 13 to enhance the floor stiffness while not affecting the mutual overlap of the three splicing plate bodies of the floor.

[0056] When the middle floor 10 is in the second installation mode, the middle floor 10 adopts the first splicing plate body 11 and the third splicing plate body 13. A lap - raised structure 132 penetrating the middle floor 10 is provided on the third splicing plate body 13. The raised height is equal to the material thickness of the middle floor 10. The position of the lap - raised structure 132 is 16 mm on the side of the third splicing plate body 13 towards the connection between the first splicing plate body 11 and the third splicing plate body 13. When the installation bottom plate body changes from the large cab with a full - width bed state to the small cab with a half - width bed state, after removing the lap - raised structure 132, the first splicing plate body 11 and the third splicing plate body 13 are welded together at FAW to form a new middle floor 10. This structure can ensure that the middle floor 10 has fewer parts, fewer welds, and saves the middle floor die, reducing investment and production costs. From the above description, it can be seen that the above - mentioned embodiments of the present invention achieve the following technical effects: 1) Enhance the floor structure stiffness: The raised structure formed by the upward protrusion of the side of the middle floor reinforcement plate 40 close to the side floor 30 changes the geometric shape of the middle floor reinforcement plate 40, increasing the bending path of the material, thereby enhancing the rigidity of the floor without significantly increasing the weight, ensuring the structural stability and durability of the floor during long - term use.

[0057] 2) Cost savings and efficiency improvement: The modular design of the floor components significantly improves the commonality rate of parts and reduces mold investment costs. Without sacrificing structural strength, it can be quickly adjusted according to different vehicle body lengths and floor protrusion height requirements, thereby greatly reducing the time and cost required to develop new parts and improving production efficiency.

[0058] 3) High flexibility and configuration adaptability: By setting the middle floor 10 with different protrusion heights, the floor platform can adapt to the diverse market and user needs of commercial vehicles. It can flexibly respond to different situations through the splicing and adjustment of modular components.

[0059] 4) Reduced number of parts and simplified installation process: The integrated design of the floor longitudinal beam 300 and the front crossbeam 20 with the side floor 30, as well as the longitudinal beam reinforcement plate 301 arranged in the floor longitudinal beam, reduces the number of parts that need to be produced separately, simplifies the installation steps in the body-in-white assembly process, reduces manufacturing difficulty and potential assembly errors, and improves the assembly speed and consistency of the whole vehicle.

[0060] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0061] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0062] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A commercial vehicle body-in-white floor assembly characterized by, The utility model relates to a kind of installation floor body and floor assembly, including: Installation floor body, the installation floor body has multiple installation plate sites; Floor assembly, the floor assembly is connected with the installation floor body, and the floor assembly at least includes middle floor (10), the middle floor (10) includes first spliced plate body (11), second spliced plate body (12) and third spliced plate body (13), the first spliced plate body (11) has with the second spliced plate body (12) is connected and is installed in the first installation state of the installation plate site, the first spliced plate body (11) has with the third spliced plate body (13) is connected and is installed in the second installation state of the installation plate site, the second spliced plate body (12) has with the third spliced plate body (13) is connected and is installed in the third installation state of the installation plate site, and the second spliced plate body (12) has with the first spliced plate body (11), the third spliced plate body (13) is separated from the disassembly state.

2. The commercial vehicle body-in-white floor assembly of claim 1, characterized by, Along the length direction of vehicle body, the installation floor body has large half state, and the installation floor body has small half state, the length of the middle floor (10) is different when the installation floor body is in different state, wherein the length of the middle floor (10) when the installation floor body is in the large half state is greater than the length of the middle floor (10) when the installation floor body is in the small half state, wherein the installation floor body can be switched from the large half state to the small half state.

3. The commercial vehicle body-in-white floor assembly of claim 2, characterized by, Along the length direction of vehicle body, the first spliced plate body (11) is close to the front end of vehicle body and is arranged, the third spliced plate body (13) is close to the rear end of vehicle body and is arranged, the rear end of the first spliced plate body (11) is provided with first connecting structure (111), the front end of the third spliced plate body (13) is provided with second connecting structure (131), one end of the second spliced plate body (12) is provided with third connecting structure (121), the other end of the second spliced plate body (12) is provided with fourth connecting structure (122), the first connecting structure (111), the second connecting structure (131), the third connecting structure (121), the fourth connecting structure (122) are same as one of connecting convex and connecting concave, wherein along the height direction of vehicle body, the height of each connecting convex is arranged identically.

4. The commercial vehicle body-in-white floor assembly of claim 3, characterized by, The middle floor (10) has first installation mode, the first spliced plate body (11) is in the first installation state when the middle floor (10) is in the first installation mode, the second spliced plate body (12) is in the third installation state, wherein the second spliced plate body (12) can be switched to the disassembly state by cutting operation from the third installation state, the first spliced plate body (11) is switched to the second installation state, so that the installation floor body is switched from the large half state to the small half state.

5. The commercial vehicle body-in-white floor assembly of claim 4, characterized by, The middle floor (10) has a second installation mode, and the first splicing plate body (11) is in the second installation state when the middle floor (10) is in the second installation mode, wherein at least one overlapping protruding structure (132) is arranged on the third splicing plate body (13), the overlapping protruding structure (132) extends along the vehicle body width direction, cutting flanges (133) are formed on both sides of the overlapping protruding structure (132), and the cutting flanges (133) can be cut and disassembled to switch the installation bottom plate body from the large half state to the small half state.

6. The commercial vehicle body-in-white floor assembly of claim 4 or 5, characterized by In the vehicle body height direction, the heights of at least one of the second splicing plate body (12) and the third splicing plate body (13) are arranged unequally when the middle floor (10) is in different installation modes.

7. The commercial vehicle body-in-white floor assembly of claim 6, characterized by, The floor assembly further comprises side floors (30), the side floors (30) are connected with the installation bottom plate body, the side floors (30) are arranged at installation plate positions, the installation plate positions of the side floors (30) are adjacent to the installation plate positions of the middle floor (10), the side floors (30) are multiple, the two sides of the middle floor (10) are connected with one side floor (30) respectively along the vehicle body width direction, and the other side of the side floor (30) is connected with a front cross beam (20), wherein the side floors (30) comprise long side floors and short side floors, the long side floors are connected with the middle floor (10) when the installation bottom plate body is in the large half state, and the short side floors are connected with the middle floor (10) when the installation bottom plate body is in the small half state.

8. The commercial vehicle body-in-white floor assembly of claim 7, characterized by, The first splicing plate body (11) comprises a first connecting section (112) and a first protruding section (113), the first protruding section (113) is connected with the first connecting section (112), the first connecting section (112) extends along the vehicle body length direction and is connected with any one of the second splicing plate body (12) and the third splicing plate body (13), the first protruding section (113) forms a first protruding structure upward along the vehicle body height direction, a side of the first protruding structure away from the vehicle body chassis and the front cross beam (20) surround to form a reinforcing cavity (100), and a side of the first protruding structure close to the vehicle body inside forms an avoiding space (200).

9. The commercial vehicle body-in-white floor assembly of claim 8, characterized by, The third splicing plate body (13) comprises a second connecting section (134) and a third connecting section (135), the third connecting section (135) is connected with the second connecting section (134), the second connecting section (134) extends along the length direction of the vehicle body and is connected with any one of the second splicing plate body (12) and the first connecting section (112), wherein the third connecting section (135) forms a second protruding structure upward along the height direction of the vehicle body, or the third connecting section (135) is connected with the first connecting section (112) and the second connecting section (134) in a flush manner, when the third connecting section (135) forms the second protruding structure, an installation space is formed between the side of the second protruding structure close to the vehicle body chassis and the vehicle body chassis, and the installation space is used for installing the vehicle body component.

10. A vehicle characterized by comprising: The vehicle has a commercial vehicle body-in-white floor assembly, and the commercial vehicle body-in-white floor assembly is the commercial vehicle body-in-white floor assembly according to any one of claims 1-9.

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