Longitudinal beam, floor framework, floor assembly and vehicle

Abstract

The utility model relates to a longitudinal beam, a floor framework, a floor assembly and a vehicle, the longitudinal beam comprises a longitudinal beam body and a connecting structure, the longitudinal beam body is used for being connected with a floor, and the longitudinal beam body is of a straight longitudinal beam structure extending in the front-back direction of a cab. The longitudinal beam body is of the straight longitudinal beam structure, so that the longitudinal beam body is free of a bent structure, force transmission of the longitudinal beam body is smoother, stress concentration is avoided, the strength of the longitudinal beam body is guaranteed, the safety performance of the longitudinal beam body is improved, and in addition, the straight longitudinal beam is simpler in structure and lower in cost. And the production and processing cost of the longitudinal beam body is also reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles, and in particular to a longitudinal beam, a floor frame, a floor assembly and a vehicle. Background Art

[0002] The cab floor of existing trucks or vans has a raised structure due to seat layout and flipping requirements, and the floor longitudinal beam used to support the floor also needs to be bent to fit the raised structure on the floor. This results in poor force transmission and stress concentration in the bent part of the longitudinal beam, which affects the quality of the longitudinal beam and reduces its safety performance. Utility Model Content

[0003] The purpose of the present disclosure is to provide a longitudinal beam, a floor frame, a floor assembly and a vehicle, wherein the longitudinal beam transmits force smoothly without stress concentration, thereby improving its safety performance.

[0004] In order to achieve the above objective, a first aspect of the present disclosure provides a longitudinal beam, comprising: a longitudinal beam body for connecting to a floor, wherein the longitudinal beam body is configured as a straight longitudinal beam structure extending along the front-rear direction of a cab.

[0005] Optionally, the longitudinal beam body includes a first longitudinal beam segment, a second longitudinal beam segment and a connecting structure, one side of the connecting structure is connected to the second longitudinal beam segment, and the other side is used to connect to the raised area of ​​the floor.

[0006] Optionally, the first longitudinal beam segment and / or the second longitudinal beam segment is configured as a channel beam structure with a U-shaped cross section.

[0007] Optionally, a first reinforcement structure for reinforcing the strength of the second longitudinal beam segment is provided in the second longitudinal beam segment.

[0008] Optionally, the first reinforcement structure is constructed as a first reinforcement member with a U-shaped cross-section, and outer side walls on opposite sides of the first reinforcement member are respectively fitted and connected to the inner wall of the second longitudinal beam segment.

[0009] Optionally, first bending portions for connecting to the floor are formed on the sides of the opposite side walls of the first longitudinal beam segment close to the floor.

[0010] Optionally, the connecting structure includes a connecting plate extending from a side edge of the second longitudinal beam segment toward a direction away from the longitudinal beam body.

[0011] Optionally, a second reinforcement structure for improving the supporting strength of the connecting plate is provided on the connecting plate.

[0012] Optionally, the second reinforcement structure is configured as a protrusion, and the protrusion extends in a direction away from the longitudinal beam body.

[0013] Optionally, there are multiple protrusions, which are provided on at least one side of the connecting plate, and the protrusions are arranged at intervals along the extension direction of the longitudinal beam body.

[0014] Optionally, the connecting plate is formed with a second bending portion for connecting with the floor.

[0015] According to a second aspect of the present disclosure, a floor frame is provided, comprising: a front cross beam, a rear cross beam, and two longitudinal beams which are spaced apart and respectively connected to the front cross beam and the rear cross beam, wherein the longitudinal beams are the longitudinal beams described above.

[0016] According to a third aspect of the present disclosure, a floor assembly is provided, comprising a floor and the above-mentioned floor frame; the floor comprises a front floor, a middle floor and a rear floor connected in sequence; the front floor is connected to the front end of the longitudinal beam, the rear floor is connected to the rear end of the longitudinal beam, and the middle floor is connected to the connection structure of the longitudinal beam body.

[0017] Optionally, the front floor and the rear floor are on the same plane, the middle floor includes an arc-shaped protrusion protruding toward a side away from the floor frame, and the arc-shaped protrusion is connected to a connection structure of the longitudinal beam body.

[0018] A fourth aspect of the present disclosure provides a vehicle comprising the above-mentioned floor assembly.

[0019] Through the above technical scheme, the longitudinal beam body disclosed in the present invention adopts a straight longitudinal beam structure, so that there is no bending structure on the longitudinal beam body, so that the force transmission of the longitudinal beam body is smoother and no stress concentration occurs, thereby ensuring the strength of the longitudinal beam body and improving the safety performance of the longitudinal beam body. In addition, the structure of the straight longitudinal beam is simpler, which also reduces the production and processing cost of the longitudinal beam body.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 is an axonometric view of a longitudinal beam provided by an embodiment of the present disclosure;

[0023] Figure 2 is a side view of a longitudinal beam provided by an embodiment of the present disclosure;

[0024] Figure 3 is a top view of a longitudinal beam provided by an embodiment of the present disclosure;

[0025] Figure 4 yes Figure 3 Cross-sectional view of the middle BB;

[0026] Figure 5 yes Figure 3 Cross-sectional view of CC;

[0027] Figure 6 is an axonometric view of a floor provided by an embodiment of the present disclosure;

[0028] Figure 7 is a schematic diagram of the structure after the floor and the longitudinal beam are connected according to an embodiment of the present disclosure;

[0029] Figure 8 is a top view of a floor and a longitudinal beam connected according to an embodiment of the present disclosure;

[0030] Fig. 9 yes Figure 8 Sectional view of AA.

[0031] Description of Reference Numerals

[0032] 1-longitudinal beam body; 2-first longitudinal beam section; 201-first bending portion; 3-second longitudinal beam section; 4-connecting structure; 401-connecting plate; 402-raised portion; 403-second bending portion; 5-first reinforcement; 6-front cross beam; 7-rear cross beam; 8-floor; 801-front floor; 802-middle floor; 803-rear floor; 804-arc-shaped raised portion. DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] In the present disclosure, unless otherwise specified, directional words such as "inside and outside" refer to the "inside and outside" relative to the contour of the corresponding component itself; "front and rear" refer to the "front and rear" in the direction of movement of the vehicle. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another and do not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be construed as limitations on the present disclosure.

[0035] In order to achieve the above purpose, Figures 1 to 9As shown, in the first aspect of the present disclosure, a longitudinal beam is provided for a truck or a van, comprising a longitudinal beam body 1 for connecting to a floor 8, wherein the longitudinal beam body 1 is constructed as a straight longitudinal beam structure extending along the front-rear direction of the cab, and the straight longitudinal beam structure can eliminate the bending structure on the longitudinal beam body 1, thereby making the force transmission of the longitudinal beam body 1 smoother and without stress concentration, thereby ensuring the strength of the longitudinal beam body 1 and improving the safety performance of the longitudinal beam body 1. In addition, the straight longitudinal beam structure is simpler and the production and processing costs of the longitudinal beam body 1 are reduced.

[0036] In some embodiments of the present disclosure, Figure 1 and Figure 2 As shown, the longitudinal beam body 1 may include a first longitudinal beam segment 2, a second longitudinal beam segment 3 and a connecting structure 4, one side of the connecting structure 4 is connected to the second longitudinal beam segment 3, and the other side is used to connect to the raised area of ​​the floor 8. The second longitudinal beam segment 3 of the longitudinal beam body 1 is connected to the raised area of ​​the floor 8 through the connecting structure 4, and the first longitudinal beam segment 2 is connected to the remaining non-raised area of ​​the floor 8, so that the longitudinal beam body 1 can be stably connected to the floor 8 without bending.

[0037] Among them, Figure 4 and Figure 5 As shown, the first longitudinal beam section 2 and / or the second longitudinal beam section 3 are constructed as a U-shaped channel beam structure in cross section. Compared with the curved beam in the related art, the U-shaped channel beam structure can better withstand the forces in the vertical and horizontal directions, making the entire structure more stable. In addition, the U-shaped channel beam uses relatively less material, has less rebound deformation, and is easier to process, thereby reducing the dead weight, facilitating production, transportation and installation, and also reducing the production cost of the longitudinal beam body 1 and improving the production quality of the longitudinal beam body 1.

[0038] In some embodiments of the present disclosure, Figure 1 , Figure 2 , Figure 5 As shown, since the second longitudinal beam section 3 corresponds to the raised area of ​​the floor 8, that is, the position where the seat is installed on the floor 8, the safety performance of this part is particularly important. Therefore, a first reinforcement structure is provided in the second longitudinal beam section 3 for strengthening the strength of the second longitudinal beam section 3. In this way, when the second longitudinal beam section 3 is impacted, the first reinforcement structure can also reduce the deformation of the longitudinal beam body 1 to a certain extent, thereby improving its safety performance.

[0039] In some embodiments, the first reinforcement structure can be constructed as a first reinforcement member 5 with a U-shaped cross-section, and the outer side walls of the first reinforcement member 5 on opposite sides are respectively fitted and connected to the inner wall of the second longitudinal beam segment 3, so that the first reinforcement member 5 can be easily connected to the second longitudinal beam segment 3 and stably connected to the second longitudinal beam segment 3 by methods such as welding, so that the two overlap-welded U-shaped trough beam structures can greatly enhance the strength of the second longitudinal beam segment 3.

[0040] In addition, the first reinforcement 5 can be arranged in the second longitudinal beam segment 3 in a variety of ways. For example, there can be one first reinforcement 5, which can extend from one end of the second longitudinal beam segment 3 to the other end of the second longitudinal beam segment 3. Alternatively, there can be multiple first reinforcements 5, and multiple first reinforcements 5 can be arranged at intervals in the second longitudinal beam segment 3. The present disclosure does not limit this.

[0041] In order to facilitate the connection between the longitudinal beam body 1 and the floor 8, Figure 1 and Figure 4 As shown, the first bending portion 201 for connecting to the floor 8 is formed on the side of the opposite side walls of the first longitudinal beam section 2 close to the floor 8. The first bending portion 201 can include a flange bent toward the outside of the first longitudinal beam section 2. The width of the flange can be adjusted according to actual conditions. In the present disclosure, the width of the flange can be exemplarily configured as 25 mm. As long as it can achieve the effect of stable connection with the floor 8, the first bending portion 201 can not only increase the connection area between the first longitudinal beam section 2 and the floor 8 to ensure the stability of the connection between the two, but also increase the strength of the first longitudinal beam section 2 and improve its anti-collision performance.

[0042] In some embodiments of the present disclosure, the connection structure 4 may include a connection plate 401 extending from the side of the second longitudinal beam segment 3 in a direction away from the longitudinal beam body 1, and the top of the connection plate 401 is connected to the raised area of ​​the floor 8, thereby avoiding the situation that the longitudinal beam body 1 needs to be bent to be connected to the floor 8. In order to improve the support strength of the connection plate 401 and further ensure the stability of the connection between the longitudinal beam body 1 and the floor 8, a second reinforcement structure for improving the support strength of the connection plate 401 may be provided on the connection plate 401. The second reinforcement structure may be constructed as a raised portion 402. The raised portion 402 extends in a direction away from the longitudinal beam body 1. It should be noted that the raised portion 402 can have a variety of extension methods. For example, the raised portion 402 can be extended in a vertical direction, that is, it can be perpendicular to the longitudinal beam body 1, or it can be obliquely extended in a direction away from the longitudinal beam body 1. There can be multiple raised portions 402, and multiple raised portions 402 are provided on at least one side of the connecting plate 401, and the raised portions 402 are arranged at intervals along the extension direction of the longitudinal beam body 1. In some embodiments not shown, multiple obliquely extended raised portions 402 can be staggered, and the present disclosure does not limit this.

[0043] Two connecting plates 401 can be provided, and the two connecting plates 401 are respectively overlapped on the outer side walls of the second longitudinal beam section 3, so that the supporting points between the second longitudinal beam section 3 and the floor 8 can be increased, thereby maximizing the stability after the longitudinal beam body 1 and the floor 8 are connected. It should be noted that the specific shape of the connecting plate 401 can be appropriately adjusted according to actual conditions to avoid the structure between the longitudinal beam and the floor 8.

[0044] In some embodiments, Figure 5 As shown, the connecting plate 401 is formed with a second bending portion 403 for connecting to the floor 8. The second bending portion 403 is similar to the first bending portion 201. Both increase the connection area between the floor 8 and the longitudinal beam body 1 by flanging, thereby ensuring the stability of the two after connection.

[0045] In the second aspect of the present disclosure, Figures 1 to 3 As shown, a floor frame is provided, comprising: a front crossbeam 6, a rear crossbeam 7, and two longitudinal beams arranged at intervals and connected to the front crossbeam 6 and the rear crossbeam 7, respectively, and the longitudinal beams adopt the above longitudinal beams. The front crossbeam 6 is connected to the front ends of the two longitudinal beams, and the rear crossbeam 7 is connected to the rear ends of the two longitudinal beams. The front crossbeam 6, the rear crossbeam 7 and the two longitudinal beams together form a frame structure that can be connected to the floor 8. The front crossbeam 6 and the rear crossbeam 7 can improve the lateral strength of the floor frame, thereby ensuring the overall stability and safety of the floor frame after being connected to the floor 8. Of course, in order to ensure the connection effect between the crossbeam and the floor 8, the side of the crossbeam close to the floor 8 can also be connected to the floor 8 through a bending portion with a flange.

[0046] The third aspect of the present disclosure is as follows Figure 6 As shown, a floor assembly is provided, including a floor 8 and the above-mentioned floor frame, wherein the floor 8 includes a front floor 801, a middle floor 802 and a rear floor 803 connected in sequence; the front floor 801 is connected to the front end of the longitudinal beam, the rear floor 803 is connected to the rear end of the longitudinal beam, and the middle floor 802 is connected to the connection structure 4 of the longitudinal beam body 1. The front floor 801 and the rear floor 803 are on the same plane, the middle floor 802 includes an arc-shaped protrusion 804 protruding to the side away from the floor frame, and the arc-shaped protrusion 804 is connected to the connection structure 4 of the longitudinal beam body 1, so that the entire floor 8 is in a "J"-shaped structure. It should be noted that in the present disclosure, the front floor 801 corresponds to the pedal position of the vehicle, the middle floor 802 corresponds to the seat position, and the rear floor 803 corresponds to the storage box position. Therefore, the floor 8 in a "J"-shaped structure can maximize the use of the space inside the vehicle and increase the design space of the storage box.

[0047] Of course, since the floor 8 includes the front floor 801, the middle floor 802 and the rear floor 803, correspondingly, the longitudinal beam can also be provided at its front end with a front longitudinal beam for further supporting the front floor 801, and at its rear end with a rear longitudinal beam for further supporting the rear floor 803, such as Figure 7 and Figure 8 As shown, the floor frame connected to the floor assembly is formed by the front longitudinal beam, the longitudinal beam, the rear longitudinal beam and the cross beam. In addition, in order to improve the strength of the front longitudinal beam and the rear longitudinal beam, it can also be configured as a U-shaped channel beam structure and a first reinforcement 5 is arranged inside.

[0048] A fourth aspect of the present disclosure provides a vehicle, comprising the above-mentioned floor assembly, wherein the vehicle comprises a truck or a van, or may also be a vehicle similar to a truck or a van.

[0049] In summary, the working principle of the present disclosure is as follows: when the longitudinal beam body 1 is connected to the floor assembly, the first longitudinal beam section 2 of the longitudinal beam body 1 will be connected to the non-raised area of ​​the floor assembly through the first bending portion 201, and the second longitudinal beam section 3 will be connected to the arc-shaped raised portion 804 of the floor assembly through the second bending portion 403, so that the longitudinal beam body 1 can be connected to the floor assembly without bending, so that the force transmission of the longitudinal beam body is smoother and there is no stress concentration, thereby ensuring the strength of the longitudinal beam body 1 and improving the safety performance of the longitudinal beam body 1. In addition, the structure of the straight longitudinal beam is simpler, and the production and processing cost of the longitudinal beam body 1 is also reduced. In addition, the first reinforcement 5 arranged in the second bending portion 403 and the raised portion 402 arranged on the connecting plate 401 can also strengthen the strength of the longitudinal beam body 1, thereby reducing the deformation of the longitudinal beam body 1 and the floor assembly when subjected to external force, and further improving the strength and safety performance of the longitudinal beam body 1.

[0050] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A longitudinal beam, characterized in that: include: The longitudinal beam body is used to be connected to the floor, and the longitudinal beam body is constructed as a straight longitudinal beam structure extending along the front-rear direction of the cab.

2. The longitudinal beam according to claim 1, characterized in that The longitudinal beam body comprises a first longitudinal beam segment, a second longitudinal beam segment and a connecting structure, one side of the connecting structure is connected to the second longitudinal beam segment, and the other side is used to connect to the raised area of ​​the floor.

3. The longitudinal beam according to claim 2, characterized in that The first longitudinal beam section and / or the second longitudinal beam section are configured as a channel beam structure having a U-shaped cross section.

4. The longitudinal beam according to claim 3, characterized in that A first reinforcement structure for reinforcing the strength of the second longitudinal beam segment is provided in the second longitudinal beam segment.

5. The longitudinal beam according to claim 4, characterized in that The first reinforcement structure is constructed as a first reinforcement member with a U-shaped cross section, and the outer side walls of the first reinforcement member on two opposite sides are respectively connected to the inner wall of the second longitudinal beam section.

6. The longitudinal beam according to claim 2, characterized in that The first bending portions for connecting with the floor are formed on the side of the opposite side walls of the first longitudinal beam section close to the floor.

7. The longitudinal beam according to claim 2, characterized in that The connection structure includes a connection plate extending from a side edge of the second longitudinal beam section toward a direction away from the longitudinal beam body.

8. The longitudinal beam according to claim 7, characterized in that The connecting plate is provided with a second reinforcing structure for improving the supporting strength of the connecting plate.

9. The longitudinal beam according to claim 8, characterized in that The second reinforcement structure is configured as a protrusion, and the protrusion extends in a direction away from the longitudinal beam body.

10. The longitudinal beam according to claim 9, characterized in that The protrusions are multiple and are arranged on at least one side of the connecting plate, and the protrusions are arranged at intervals along the extending direction of the longitudinal beam body.

11. The longitudinal beam according to claim 7, characterized in that The connecting plate is formed with a second bent portion for connecting with the floor.

12. A floor frame, characterized in that: include: A front cross beam, a rear cross beam and two longitudinal beams which are spaced apart and respectively connected to the front cross beam and the rear cross beam, wherein the longitudinal beams are the longitudinal beams according to any one of claims 1 to 11.

13. A floor assembly, characterized in that: comprising a floor and the floor frame according to claim 12; The floor comprises a front floor, a middle floor and a rear floor connected in sequence; the front floor is connected to the front end of the longitudinal beam, the rear floor is connected to the rear end of the longitudinal beam, and the middle floor is connected to the connection structure of the longitudinal beam body.

14. The floor assembly according to claim 13, characterized in that: The front floor and the rear floor are on the same plane, the middle floor comprises an arc-shaped protrusion protruding toward a side away from the floor frame, and the arc-shaped protrusion is connected to the connection structure of the longitudinal beam body.

15. A vehicle, characterized in that: Comprising the floor assembly according to claim 13 or 14.

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