Longitudinal beam, floor frame, floor assembly and vehicle

Abstract

A longitudinal beam, a floor frame, a floor assembly and a vehicle. The longitudinal beam (100) comprises a longitudinal beam body (1) and a connection structure (4), wherein the longitudinal beam body (1) is configured to connect to a floor (8), and the longitudinal beam body (1) is configured to be of a straight longitudinal beam structure (101) extending in a front-rear direction of a cab. The longitudinal beam body is of the straight longitudinal beam structure, such that the longitudinal beam body does not have a curved structure, causing the force transmission of the longitudinal beam body to be smoother and preventing stress concentration, and thus ensuring the strength of the longitudinal beam body, and improving the safety performance of the longitudinal beam body; in addition, the structure of a straight longitudinal beam is simpler, which also reduces production and processing costs of the longitudinal beam body.

Description

Longitudinal beams, floor frames, floor assemblies and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202420188617.X, filed with the China Patent Office on January 25, 2024, entitled “Longitudinal beam, floor frame, floor assembly and vehicle,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of vehicle technology, and in particular, to a longitudinal beam, a floor frame, a floor assembly, and a vehicle. Background Art

[0004] In the related art, the cab floor of a truck or van has a raised structure due to reasons such as seat arrangement and flipping requirements, and the floor longitudinal beam used to support the floor also needs to bend 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, thereby affecting the quality of the longitudinal beam and reducing its safety performance. Summary of the Invention

[0005] 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.

[0006] To achieve the above objectives, the present disclosure provides a longitudinal beam in a first aspect, including a longitudinal beam body for connecting to a floor, wherein the longitudinal beam body is configured as a straight longitudinal beam structure extending in a front-rear direction of a cab.

[0007] 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.

[0008] Optionally, the first longitudinal beam segment and / or the second longitudinal beam segment are configured as a channel beam structure with a U-shaped cross section.

[0009] Optionally, a first reinforcement structure for increasing the strength of the second longitudinal beam segment is provided in the second longitudinal beam segment.

[0010] 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.

[0011] 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.

[0012] Optionally, the connecting structure includes a connecting plate extending from a side edge of the second longitudinal beam segment in a direction away from the longitudinal beam body.

[0013] Optionally, a second reinforcement structure for improving the supporting strength of the connecting plate is provided on the connecting plate.

[0014] Optionally, the second reinforcement structure is configured as a protrusion, and the protrusion extends in a direction away from the longitudinal beam body.

[0015] 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.

[0016] Optionally, the connecting plate is formed with a second bent portion for connecting to the floor.

[0017] A second aspect of the present disclosure provides a floor frame, comprising: a front crossbeam, a rear crossbeam, and two longitudinal beams spaced apart and respectively connected to the front crossbeam and the rear crossbeam, wherein the longitudinal beams are the aforementioned longitudinal beams.

[0018] 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 connecting structure of the longitudinal beam body.

[0019] 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 the connection structure of the longitudinal beam body.

[0020] A fourth aspect of the present disclosure provides a vehicle comprising the above-mentioned floor assembly.

[0021] Through the above technical solution, 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 there is no stress concentration, 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 costs of the longitudinal beam body.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0024] FIG1 is an isometric view of a longitudinal beam provided in an embodiment of the present disclosure;

[0025] FIG2 is a side view of a longitudinal beam provided by an embodiment of the present disclosure;

[0026] FIG3 is a top view of a longitudinal beam provided in an embodiment of the present disclosure;

[0027] FIG4 is a cross-sectional view taken along line BB in FIG3 ;

[0028] FIG5 is a cross-sectional view taken along line CC in FIG3 ;

[0029] FIG6 is an isometric view of a floor provided in an embodiment of the present disclosure;

[0030] FIG7 is a schematic structural diagram of a floor and longitudinal beams connected according to an embodiment of the present disclosure;

[0031] FIG8 is a top view of the floor and longitudinal beams connected according to an embodiment of the present disclosure;

[0032] FIG9 is a cross-sectional view taken along line AA in FIG8 . DETAILED DESCRIPTION

[0033] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended 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 outline 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" and "second" used in the present disclosure are intended to distinguish one element from another and do not have sequentiality or 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 understood as limitations on the present disclosure.

[0035] In order to achieve the above-mentioned purpose, as shown in Figures 1 to 9, the first aspect of the present disclosure provides a longitudinal beam 100 for a truck or a van, including a longitudinal beam body 1 for connecting to a floor 8, and the longitudinal beam body 1 is constructed as a straight longitudinal beam structure 101 extending along the front and rear directions of the cab. The straight longitudinal beam structure 101 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 101 is simpler and reduces the production and processing costs of the longitudinal beam body 1.

[0036] In some embodiments of the present disclosure, as shown in Figures 1 and 2, a 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 panel 8. The second longitudinal beam segment 3 of the longitudinal beam body 1 is connected to the raised area of ​​the floor panel 8 via the connecting structure 4, while the first longitudinal beam segment 2 is connected to the remaining non-raised area of ​​the floor panel 8. This ensures that the longitudinal beam body 1 is stably connected to the floor panel 8 without bending.

[0037] As shown in Figures 4 and 5 , 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 to the curved beam in the related art, the U-shaped channel beam structure can better withstand vertical and horizontal forces, 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. This reduces the weight and facilitates production, transportation, and installation, while 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, as shown in Figures 1, 2, and 5, 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 300 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 300 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 300 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. This makes it easy for the first reinforcement member 5 to be 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 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. This disclosure does not limit this.

[0041] In order to facilitate the connection between the longitudinal beam body 1 and the floor 8, as shown in Figures 1 and 4, the opposite side walls of the first longitudinal beam section 2 are formed on the side close to the floor 8 with a first bending portion 201 for connecting to the floor 8. The first bending portion 201 may 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, ensuring 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 section 3 in a direction away from the longitudinal beam body 1. The top of the connection plate 401 is connected to the raised area of ​​the floor 8, thereby avoiding the situation where the longitudinal beam body 1 needs to be bent to be connected to the floor 8. In order to improve the supporting strength of the connection plate 401 and further ensure the stability of the connection between the longitudinal beam body 1 and the floor 8, the connection plate 401 may also be provided with a second reinforcement structure 400 for improving the supporting strength of the connection plate 401. The second reinforcement structure 400 may be configured as a raised portion 401. 2. 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 various extension modes. For example, the raised portion 402 can be extended in a vertical direction, that is, perpendicular to the longitudinal beam body 1, or can be extended obliquely 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 extending raised portions 402 can be staggered, and the present disclosure is not limited to 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 support 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 100 and the floor 8.

[0044] In some embodiments, as shown in FIG5 , the connecting plate 401 is formed with a second bent portion 403 for connecting to the floor 8. The second bent portion 403 is similar to the first bent portion 201 in that 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 a second aspect of the present disclosure, as shown in Figures 1 to 3, a floor frame 500 is provided, comprising: a front crossbeam 6, a rear crossbeam 7, and two longitudinal beams 100 spaced apart and connected to the front crossbeam 6 and the rear crossbeam 7, respectively. The longitudinal beams 100 are the aforementioned longitudinal beams 100. The front crossbeam 6 is connected to the front ends of the two longitudinal beams 100, and the rear crossbeam 7 is connected to the rear ends of the two longitudinal beams 100. The front crossbeam 6, the rear crossbeam 7, and the two longitudinal beams 100 together form a frame structure that can be connected to the floor 8. The front crossbeam 6 and the rear crossbeam 7 can enhance the lateral strength of the floor frame 500, thereby ensuring the overall stability and safety of the floor frame 500 after being connected to the floor 8. Of course, in order to ensure the connection 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 bent portion with a flange.

[0046] A third aspect of the present disclosure, as shown in FIG6 , provides a floor assembly 600 comprising a floor panel 8 and the aforementioned floor frame 500. The floor panel 8 comprises a front floor panel 801, a middle floor panel 802, and a rear floor panel 803, which are sequentially connected. The front floor panel 801 is connected to the front end of the longitudinal beam 100, the rear floor panel 803 is connected to the rear end of the longitudinal beam 100, and the middle floor panel 802 is connected to the connection structure 4 of the longitudinal beam body 1. The front floor panel 801 and the rear floor panel 803 are coplanar. The middle floor panel 802 includes an arc-shaped protrusion 804 that protrudes away from the floor frame 500. The arc-shaped protrusion 804 is connected to the connection structure 4 of the longitudinal beam body 1, thereby forming a "J"-shaped structure for the entire floor panel 8. It should be noted that, in the present disclosure, the front floor panel 801 corresponds to the vehicle's footrest position, the middle floor panel 802 corresponds to the seat position, and the rear floor panel 803 corresponds to the storage compartment position. Therefore, the "J"-shaped structure of the floor panel 8 maximizes interior space and increases the design space for the storage compartment.

[0047] Of course, since the floor 8 includes a front floor 801, a middle floor 802 and a rear floor 803, the longitudinal beam 100 can also be provided with a front longitudinal beam at its front end for further supporting the front floor 801, and a rear longitudinal beam at its rear end for further supporting the rear floor 803. As shown in Figures 7 and 8, the front longitudinal beam, the longitudinal beam 100, the rear longitudinal beam and the cross beam together form a floor frame 500 connected to the floor assembly 600. In addition, in order to improve the strength of the front longitudinal beam and the rear longitudinal beam, they can also be configured as a U-shaped channel beam structure and a first reinforcement member 5 is provided inside.

[0048] In a fourth aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned floor assembly 600. The vehicle comprises a truck or a van, or may be a vehicle similar to a truck or a van.

[0049] In summary, the operating principle of the present disclosure is as follows: when the longitudinal beam body 1 is connected to the floor assembly 600, the first longitudinal beam segment 2 of the longitudinal beam body 1 connects to the non-protruding area of ​​the floor assembly 600 via the first bend 201, and the second longitudinal beam segment 3 connects to the arc-shaped protrusion 804 of the floor assembly 600 via the second bend 403. This allows the longitudinal beam body 1 to connect to the floor assembly 600 without bending, resulting in smoother force transmission and no stress concentration in the longitudinal beam body 1. This ensures the strength of the longitudinal beam body 1 and improves the safety performance of the longitudinal beam body 1. Furthermore, the straight longitudinal beam structure 101 is simpler, reducing the production and processing costs of the longitudinal beam body 1. Furthermore, the first reinforcement 5 disposed within the second bend 403 and the protrusion 402 disposed on the connecting plate 401 also strengthen the strength of the longitudinal beam body 1, thereby reducing deformation of the longitudinal beam body 1 and the floor assembly 600 when subjected to external forces, further enhancing 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 of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection 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 appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, the 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 (100), characterized in that, Comprising: A longitudinal beam body (1) for connecting with a floor (8), and the longitudinal beam body (1) is configured as a straight longitudinal beam structure (101) extending along the front-rear direction of the cab.

2. The longitudinal beam (100) according to claim 1, characterized in that, The longitudinal beam body (1) includes a first longitudinal beam section (2), a second longitudinal beam section (3), and a connecting structure (4). One side of the connecting structure (4) is connected to the second longitudinal beam section (3), and the other side is for connecting with a raised area of the floor (8).

3. The longitudinal beam (100) according to claim 2, characterized in that, The first longitudinal beam section (2) and / or the second longitudinal beam section (3) is configured as a channel beam structure with a U-shaped cross-section.

4. The longitudinal beam (100) according to claim 2 or 3, characterized in that, A first strengthening structure (300) for strengthening the strength of the second longitudinal beam section (3) is provided inside the second longitudinal beam section (3).

5. The longitudinal beam (100) according to claim 4, characterized in that, The first strengthening structure (300) is configured as a first strengthening member (5) with a U-shaped cross-section, and the outer side walls of the opposite sides of the first strengthening member (5) are respectively attached and connected to the inner walls of the second longitudinal beam section (3).

6. The longitudinal beam (100) according to any one of claims 2-5, characterized in that, On one side of the opposite side walls of the first longitudinal beam section (2) close to the floor (8), a first bending portion (201) for connecting with the floor (8) is formed.

7. The longitudinal beam (100) according to any one of claims 2-6, characterized in that, The connecting structure (4) includes a connecting plate (401) extending from the side of the second longitudinal beam section (3) in a direction away from the longitudinal beam body (1).

8. The longitudinal beam (100) according to claim 7, characterized in that, A second strengthening structure (400) for enhancing the support strength of the connecting plate (401) is provided on the connecting plate (401).

9. The longitudinal beam (100) according to claim 8, characterized in that, The second strengthening structure (400) is configured as a raised portion (402), and the raised portion (402) extends in a direction away from the longitudinal beam body (1).

10. The longitudinal beam (100) according to claim 9, characterized in that, There are a plurality of the raised portions (402), which are provided on at least one side of the connecting plate (401), and the raised portions (402) are arranged at intervals along the extending direction of the longitudinal beam body (1).

11. The longitudinal beam (100) according to any one of claims 7-10, characterized in that, The connecting plate (401) forms a second bending portion (403) for connecting with the floor (8).

12. A floor skeleton (500), characterized in that, Comprising: A front cross beam (6), a rear cross beam (7), and two longitudinals (100) arranged at intervals and respectively connected to the front cross beam (6) and the rear cross beam (7), and the longitudinal (100) adopts the longitudinal beam according to any one of claims 1-11.

13. A floor assembly (600), characterized in that, Comprising a floor (8) and the floor skeleton (500) according to claim 12; The floor (8) includes a front floor (801), a middle floor (802), and a rear floor (803) connected in sequence; the front floor is connected to the front end of the longitudinal (100), the rear floor is connected to the rear end of the longitudinal (100), and the middle floor (802) is connected to the connecting structure (4) of the longitudinal beam body (1).

14. The floor assembly (600) according to claim 13, characterized in that, The front floor (801) and the rear floor (803) are in the same plane, and the middle floor (802) includes an arc-shaped raised portion (804) protruding towards a side away from the floor skeleton (500), and the arc-shaped raised portion (804) is connected to the connecting structure (4) of the longitudinal beam body (1).

15. A vehicle, characterized in that, Comprising the floor assembly (600) according to claim 13 or 14.

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