Commercial vehicle body floor structure

Abstract

The utility model discloses a commercial vehicle body floor structure which comprises a floor panel structure and a floor frame structure, the floor panel structure covers the floor frame structure, and the floor panel structure and the floor frame structure are matched to form a floor panel frame assembly. The floor frame structure comprises a plurality of first floor side cross beams, a pair of doorsill beams, at least two fixed longitudinal beams, a plurality of second floor side cross beams and fixed cross beams, and the floor panel structure is connected with the first floor side cross beams, the doorsill beams, the fixed longitudinal beams, the fixed cross beams and the second floor side cross beams. The novel convex floor has the beneficial effects that the driving space in a vehicle is superior to that of a traditional convex floor, the rigidity of a vehicle body and the whole vehicle is improved, the novel convex floor is very stable, the whole floor is straight and simple in structure, compared with an integral floor, the novel convex floor is lighter in weight, cost and weight control is facilitated, the new energy heavy truck chassis arrangement requirement is met, the vehicle body rigidity and strength requirements are met, and the excellent cab space is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of commercial vehicle body structures, in particular to a commercial vehicle body floor structure. Background Art

[0002] As a new energy vehicle, new energy commercial vehicles have the advantages of energy conservation and environmental protection, and are becoming more and more a hot topic in the automotive field. The cab of traditional commercial vehicles is limited by factors such as engine layout, and the floor panel structure cannot be straight. There are large raised structures in the middle and rear, which hinders the movement of passengers in the car and has a poor driving experience. The layout of new energy commercial vehicles is different from that of traditional fuel commercial vehicles, and the driving experience requirements are higher. Therefore, the cab needs a new floor platform to meet the needs of the vehicle layout and increase the space in the cabin.

[0003] At the same time, the floor frame structure is also an area that needs to be focused on. The floor frame structure of the vehicle body not only affects the performance of the vehicle, but also has a great impact on the process, which in turn affects the cost. With the increasing emphasis on the development cost and performance of the vehicle, the floor frame structure of the vehicle body has also put forward higher requirements. The unreasonable layout of the floor frame structure, especially the traditional design of the convex floor, leads to difficulties in chassis layout, increased material costs of the floor panel structure assembly, and increased vehicle weight. It is necessary to improve the rigidity and strength requirements of the vehicle body and the vehicle to meet the chassis layout requirements of new energy heavy trucks and meet the rigidity and strength requirements of the vehicle body. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a commercial vehicle body floor structure to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A commercial vehicle body floor structure includes a floor panel structure and a floor frame structure, wherein the floor panel structure covers the floor frame structure, and the floor panel structure cooperates with the floor frame structure to form a floor panel frame assembly, wherein the floor frame structure includes a plurality of floor side cross beams 1, a pair of door sill beams, at least two fixed longitudinal beams, a plurality of floor side cross beams 2 and fixed cross beams, wherein the floor side cross beams 1 and the floor side cross beams 2 are located between the door sill beams and the fixed longitudinal beams, a plurality of fixed cross beams are arranged between the fixed longitudinal beams, the door sill beams are arranged parallel to the fixed longitudinal beams, the floor side cross beams 1, the floor side cross beams 2 and the fixed cross beams are fixed to the fixed longitudinal beams and the door sill beams to form a floor frame structure, and the floor panel structure is connected to the floor side cross beams 1, the door sill beams, the fixed longitudinal beams, the fixed cross beams and the floor side cross beams 2.

[0007] Furthermore, a floor damping plate is symmetrically arranged on the floor panel structure, and a plurality of seat brackets are arranged on the front end of the floor panel structure close to the floor damping plate.

[0008] Furthermore, the floor side cross beam 1, the fixed cross beam and the floor side cross beam 2 are fixedly connected with the fixed longitudinal beam and the threshold beam by using a plurality of section beams, and the fixed cross beam is arranged in parallel with the floor side cross beam 1 and the floor side cross beam 2 in a one-to-one correspondence.

[0009] Furthermore, a plurality of reinforcing longitudinal beams are arranged between the segment beams of the fixed cross beam.

[0010] Furthermore, the floor panel structure includes a front section of the floor, a middle section of the floor and a rear section of the bottom plate, the middle section of the floor is located between the front section of the floor and the rear section of the bottom plate, and the front section of the floor, the middle section of the floor and the rear section of the bottom plate are spliced ​​together into an integral connection.

[0011] Furthermore, a plurality of reinforcing ribs are formed on the front section of the floor, the middle section of the floor and the rear section of the bottom plate.

[0012] Furthermore, an A-pillar inner panel is provided at the front end of the threshold beam, a supporting crossbeam is provided between the two A-pillar inner panels and at the upper end where the fixed longitudinal beam is provided, the other end of the A-pillar inner panel is connected to the A-pillar, and the supporting crossbeam is located at the upper end of the floor panel structure.

[0013] Furthermore, it also includes a front wall structure, which includes a front wall plate and a pair of support beams. The front wall plate is connected to the fixed longitudinal beam through the pair of support beams, and the front end of the fixed longitudinal beam is connected to the support beam through a joint bracket.

[0014] The utility model provides a commercial vehicle body floor structure, which has the following beneficial effects: the utility model adopts a three-section spliced ​​floor panel of a floor front section, a floor middle section and a bottom plate rear section through a floor panel structure, which effectively reduces the cost of stamping molds, reduces the difficulty of stamping, and improves customer experience; the floor frame structure is through a floor side cross beam one, a door sill beam, a fixed longitudinal beam and a floor side cross beam two; the floor panel structure is covered on the floor frame structure; the floor panel structure is fixedly connected to the floor frame structure, which is beneficial to improving the torsional stiffness and bending stiffness of the vehicle body and the entire vehicle; the floor is flat as a whole and has a simple structure; compared with an integral floor, it is lighter in weight, which is beneficial to cost and weight control, meets the chassis layout requirements of new energy heavy trucks, meets the body stiffness and strength requirements, and has excellent cab space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a commercial vehicle body floor structure according to an embodiment of the utility model;

[0017] Figure 2 is a rear perspective view of a commercial vehicle body floor structure according to an embodiment of the utility model;

[0018] Figure 3 is a top view of a commercial vehicle body floor structure according to an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of a floor frame structure of a commercial vehicle body floor structure according to an embodiment of the utility model;

[0020] Figure 5 The utility model is a schematic diagram of a floor panel structure of a commercial vehicle body floor structure according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Floor panel structure; 2. Floor side crossbeam 1; 3. Door sill beam; 4. Fixed longitudinal beam; 5. Floor side crossbeam 2; 6. Fixed crossbeam; 7. Reinforced longitudinal beam; 8. Front section of floor; 9. Middle section of floor; 10. Rear section of floor plate; 11. Reinforcement ribs; 12. Floor damping plate; 13. Seat bracket; 14. Front structure; 15. A-pillar inner panel; 16. Support crossbeam; 17. Floor frame structure. DETAILED DESCRIPTION

[0023] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] According to an embodiment of the utility model, a commercial vehicle body floor structure is provided.

[0025] Embodiment 1:

[0026] like Figure 1-5As shown, according to an embodiment of the utility model, the commercial vehicle body floor structure includes a floor panel structure 1 and a floor frame structure 17, wherein the floor panel structure 1 is covered on the floor frame structure 17, and the floor panel structure 1 cooperates with the floor frame structure 17 to form a floor panel frame assembly, wherein the floor frame structure 17 includes a plurality of floor side cross beams 1 2, a pair of door sill beams 3, at least two fixed longitudinal beams 4, a plurality of floor side cross beams 2 5 and a fixed cross beam 6, wherein the floor side cross beams 1 2 and the floor side cross beams 2 5 are located between the door sill beam 3 and the fixed longitudinal beam 4, and a plurality of fixed cross beams 6 are arranged between the fixed longitudinal beams 4, and the door sill beam 3 is arranged parallel to the fixed longitudinal beam 4, and the floor side cross beams 1 2, the floor side cross beams 2 5 and the fixed cross beams 6 are fixed to the fixed longitudinal beams 4 and the door sill beam 3 to form a floor frame structure 17 therebetween, and the floor panel structure 1 is connected to the floor side cross beams 1 2, the door sill beam 3, the fixed longitudinal beams 4, the fixed cross beams 6 and the floor side cross beams 2 5.

[0027] The floor panel structure 1 adopts a three-section spliced ​​floor panel, which effectively reduces the cost of stamping molds, reduces the difficulty of stamping, and improves customer experience. The floor frame structure 17 is covered on the floor frame structure 17 through the floor side cross beam 1 2, the door sill beam 3, the fixed longitudinal beam 4, the fixed cross beam 6 and the floor side cross beam 2 5. The floor panel structure 1 is matched with the floor frame structure 17 to form a commercial vehicle body floor structure assembly. The panel cooperates with the floor frame structure 17 to enhance its rigidity and improve its strength performance, which is beneficial to improving the rigidity of the body and the whole vehicle. It is very stable. The floor is flat as a whole and has a simple structure. Compared with the integral floor, it is lighter, which is beneficial to cost and weight control, meets the chassis layout requirements of new energy heavy trucks, and meets the body rigidity and strength requirements.

[0028] Embodiment 2:

[0029] like Figure 1-5 As shown, the floor panel structure 1 is symmetrically provided with a floor damping plate 12, and the floor panel structure 1 is provided with a plurality of seat brackets 13 near the front end of the floor damping plate 12. The floor side cross beam 1 2, the fixed cross beam 6 and the floor side cross beam 2 5 are fixedly connected with the fixed longitudinal beam 4 and the threshold beam 3 by using a plurality of section beams, and the fixed cross beam 6 is arranged in parallel with the floor side cross beam 1 2 and the floor side cross beam 2 5. A plurality of reinforcing longitudinal beams 7 are arranged between the sections of the fixed cross beam 6.

[0030] Multiple fixed longitudinal beams and door sill beams 3 are fixedly connected to floor side cross beam 1 2, floor side cross beam 2 5 and fixed cross beam 6 to ensure the overall rigidity and strength of the vehicle body. A multi-section distributed cross beam structure is combined with the longitudinal beam to improve the overall rigidity of the floor. The longitudinal beam is strengthened to improve the local rigidity of the floor frame structure 17.

[0031] like Figure 1-5 As shown, the floor panel structure 1 includes a floor front section 8, a floor middle section 9 and a bottom plate rear section 10. The floor middle section 9 is located between the floor front section 8 and the bottom plate rear section 10. The floor front section 8, the floor middle section 9 and the bottom plate rear section 10 are spliced ​​and connected to each other as a whole. A plurality of reinforcing ribs 11 are formed on the floor front section 8, the floor middle section 9 and the bottom plate rear section 10. The plurality of reinforcing ribs 11 improve the structural strength and form reliable protection. The surface of the floor panel structure 1 is flat, the floor in the cab is flat, and the user experience is good.

[0032] like Figure 1-5 As shown, the front end of the threshold beam 3 is provided with an A-pillar inner panel 15, and a support beam 16 is provided between the two A-pillar inner panels 15 and at the upper end where the fixed longitudinal beam 4 is provided, and the other end of the A-pillar inner panel 15 is connected to the A-pillar, and the support beam 16 is located at the upper end of the floor panel structure 1. It also includes a front wall structure 14, which includes a front wall panel and a pair of support beams. The front wall panel is connected to the fixed longitudinal beam 4 through a pair of support beams, and the front end of the fixed longitudinal beam 4 is connected to the support beam through a joint bracket.

[0033] In actual application, the floor panel structure 1 adopts a three-section spliced ​​floor panel of the floor front section 8, the floor middle section 9 and the bottom plate rear section 10, which effectively reduces the cost of the stamping die and reduces the difficulty of stamping. The overall surface of the floor is flat and has no bumps, which ensures that the overall flatness of the floor inside the cab is improved, and the customer experience is improved. The floor panel structure 1 is provided with a plurality of reinforcing ribs 11 to improve the structural strength and form reliable protection. The surface of the floor panel structure 1 is flat, the floor inside the cab is flat, and the user experience is good.

[0034] The floor frame structure 17 is formed by a floor side cross beam 1 2, a door sill beam 3, a fixed longitudinal beam 4, a fixed cross beam 6 and a floor side cross beam 2 5. The floor panel structure 1 is covered on the floor frame structure 17. The floor panel structure 1 cooperates with the floor frame structure 17 to form a commercial vehicle body floor structure assembly. The floor cooperates with the floor frame structure 17 to enhance its rigidity and improve its strength performance. The floor frame structure 17 of the floor is the main force-bearing structure, and the floor panel can be made thin to reduce the overall weight. A pair of door sill beams 3 of the floor frame structure 17 and the side door sills form a closed longitudinal beam cavity with a larger cross section, which is helpful for improving the rigidity and strength of the entire vehicle body. The fixed longitudinal beam 4 running through the front and back is arranged with a compact structure. The fixed longitudinal beam 4 and the door sill beam 3 form a total of 4 longitudinal beam structures to transmit energy from head-on collision and collision, while greatly improving the bending performance. Multiple longitudinal beams are fixedly connected to the floor side cross beam 1 2, the floor side cross beam 2 5 and the fixed cross beam 6 to ensure the overall rigidity and strength of the vehicle body. A multi-section distributed cross beam structure is combined with the longitudinal beam to improve the overall rigidity of the floor. The number and position of the beams are adjusted according to the actual design. Reinforced longitudinal beams 7 are arranged between the fixed cross beams 6. The reinforced longitudinal beams 7 are used to increase the local rigidity of the floor panel structure 1 and enhance the customer's pedaling experience.

[0035] The components of the body floor assembly structure are made by steel plate stamping and connected by resistance welding and structural adhesive technology.

[0036] The floor panel structure 1 is provided with a floor damping plate 12 made of modified asphalt material, which is laid on the floor before the topcoat is sprayed and hardened after baking, thereby improving the rigidity of the floor panel and the overall NVH performance of the cab.

[0037] The floor panel structure 1 is fixedly connected to the floor frame structure 17, which is beneficial to improving the torsional rigidity and bending rigidity of the vehicle body and the entire vehicle. It is very stable and has a simple structure. Compared with the integral floor, it is lighter, which is beneficial to cost and weight control.

[0038] To sum up, with the help of the above-mentioned technical scheme of the utility model, the floor panel structure 1 adopts a three-section spliced ​​floor panel of the floor front section 8, the floor middle section 9 and the bottom plate rear section 10, which effectively reduces the cost of stamping molds, reduces the difficulty of stamping, and improves customer experience. The floor frame structure 17 is through the floor side cross beam 1 2, the door sill beam 3, the fixed longitudinal beam 4 and the floor side cross beam 2 5. The floor panel structure 1 is covered on the floor frame structure 17. The floor panel structure 1 is fixedly connected to the floor frame structure 17, which is beneficial to improving the torsional stiffness and bending stiffness of the vehicle body and the whole vehicle. The floor is flat as a whole and has a simple structure. Compared with the integral floor, it is lighter in weight, which is beneficial to cost and weight control, meets the chassis layout requirements of new energy heavy trucks, meets the vehicle body stiffness and strength requirements, and has excellent cab space.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A commercial vehicle body floor structure, characterized in that: The invention comprises a floor panel structure (1) and a floor frame structure (17), wherein the floor panel structure (1) is covered on the floor frame structure (17), and the floor panel structure (1) cooperates with the floor frame structure (17) to form a floor panel frame assembly, wherein the floor frame structure (17) comprises a plurality of floor side cross beams (2), a pair of threshold beams (3), at least two fixed longitudinal beams (4), a plurality of floor side cross beams (5) and fixed cross beams (6), wherein the floor side cross beams (2) and the floor side cross beams (5) are located on the threshold. The floor panel structure (1) is a floor panel structure comprising a plurality of fixed cross beams (6) arranged between the fixed longitudinal beams (4), a sill beam (3) and the fixed longitudinal beams (4), a plurality of fixed cross beams (6) are arranged between the fixed longitudinal beams (4), a sill beam (3) and the fixed longitudinal beams (4) are arranged in parallel, the floor side cross beam (2), the floor side cross beam (5) and the fixed cross beams (6) are fixed to the fixed longitudinal beams (4) and the sill beam (3), so that a floor frame structure (17) is formed therebetween, and the floor panel structure (1) is connected to the floor side cross beam (2), the sill beam (3), the fixed longitudinal beams (4), the fixed cross beams (6) and the floor side cross beam (5).

2. A commercial vehicle body floor structure according to claim 1, characterized in that: The floor panel structure (1) is symmetrically provided with a floor damping plate (12), and the floor panel structure (1) is provided with a plurality of seat brackets (13) near the front end of the floor damping plate (12).

3. A commercial vehicle body floor structure according to claim 1, characterized in that: The floor side cross beam 1 (2), the fixed cross beam (6) and the floor side cross beam 2 (5) are fixedly connected to the fixed longitudinal beam (4) and the door sill beam (3) by using a plurality of section beams, and the fixed cross beam (6) is arranged in parallel with the floor side cross beam 1 (2) and the floor side cross beam 2 (5) in a one-to-one correspondence.

4. A commercial vehicle body floor structure according to claim 1, characterized in that: A plurality of reinforcing longitudinal beams (7) are arranged between the segment beams of the fixed cross beam (6).

5. The commercial vehicle body floor structure according to claim 1, characterized in that: The floor panel structure (1) comprises a floor front section (8), a floor middle section (9) and a bottom plate rear section (10), wherein the floor middle section (9) is located between the floor front section (8) and the bottom plate rear section (10), and the floor front section (8), the floor middle section (9) and the bottom plate rear section (10) are spliced ​​together to form an integral connection.

6. A commercial vehicle body floor structure according to claim 5, characterized in that: A plurality of reinforcing ribs (11) are formed on the front section (8) of the floor, the middle section (9) of the floor and the rear section (10) of the bottom plate.

7. The commercial vehicle body floor structure according to claim 1, characterized in that: An A-pillar inner panel (15) is provided at the front end of the threshold beam (3), a supporting cross beam (16) is provided between two A-pillar inner panels (15) and at the upper end where the fixed longitudinal beam (4) is provided, the other end of the A-pillar inner panel (15) is connected to the A-pillar, and the supporting cross beam (16) is located at the upper end of the floor panel structure (1).

8. The commercial vehicle body floor structure according to claim 1, characterized in that: It also includes a front wall structure (14), which includes a front wall plate and a pair of support beams, the front wall plate is connected to the fixed longitudinal beam (4) via the pair of support beams, and the front end of the fixed longitudinal beam (4) is connected to the support beam via a joint bracket.

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