Vehicle body frame structure and vehicle

Abstract

The utility model provides a vehicle body frame structure and a vehicle. The vehicle body frame structure comprises threshold beams arranged on the left side and the right side of the middle of a vehicle body respectively, and a front floor cross beam connected with the threshold beams on the two sides. The threshold beams on the two sides each comprise an inner side beam body and an outer side beam body which are connected together in a buckled mode, each inner side beam body is made of a steel metal plate, and the cross section of each outer side beam body is of a multi-cavity energy absorption structure. The front floor cross beam is integrally formed by adopting an extrusion profile, is arranged in a penetrating mode in the left-right direction of the whole vehicle and is connected between the inner side beam bodies on the two sides. According to the vehicle body frame structure, by arranging the inner side beam body, the outer side beam body and the front floor cross beam, the number of parts of the doorsill beam and the front floor cross beam can be reduced, and a vehicle body structure can be manufactured conveniently. The energy absorption structure in the outer side beam body can improve the energy absorption capacity, the front floor cross beam is used for guaranteeing the transmission and dispersion effect of the side collision acting force, and the side collision safety of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, and particularly relates to a vehicle body frame structure. This embodiment also relates to a vehicle provided with the above vehicle body frame structure. Background Art

[0002] With the rapid development of the automotive industry and the continuous improvement of consumers' requirements for vehicle safety performance, the design of vehicle body structures has become particularly important. The middle part of the vehicle body, as the core load-bearing area of the vehicle, its structural design is directly related to the overall rigidity and collision safety of the vehicle. Especially in side collision accidents, the strength of the vehicle body middle structure is directly related to the survival space and safety of passengers.

[0003] Currently, the sill beams on both sides of the middle part of the vehicle body, and the front floor cross beam serving as the seat installation cross beam generally adopt a steel sheet metal structure, and the front floor cross beam generally adopts a two-section or multi-section structure. This results in many components for the sill beam and the front floor cross beam, which is not conducive to the production and preparation of the sill beam and the front floor cross beam. At the same time, the energy absorption effect at the sill position is limited, and the front floor cross beam adopts a multi-section structure, which is not conducive to forming a through force transmission channel during side collision, easily affects the side collision force transmission and dispersion effect, causes the front floor cross beam to be easily structurally damaged due to side collision, and is difficult to provide lateral support for the sill positions on both sides of the vehicle body, thus being not conducive to the improvement of the overall vehicle side collision safety. Summary of the Utility Model

[0004] In view of this, the utility model aims to propose a vehicle body frame structure, which is conducive to the preparation of the vehicle body structure and is conducive to improving the side collision safety of the whole vehicle.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A vehicle body frame structure includes sill beams respectively arranged on the left and right sides of the middle part of the vehicle body, and a front floor cross beam connected to the sill beams on both sides; both of the sill beams on both sides include an inner beam body and an outer beam body that are snap-connected together, and the inner beam body is made of steel sheet metal, and the cross section of the outer beam body is set as a multi-cavity energy absorption structure; the front floor cross beam is integrally formed by extrusion molding, and the front floor cross beam is arranged through in the left-right direction of the whole vehicle and is connected between the inner beam bodies on both sides.

[0007] Further, the front floor cross beam is directly connected to each side of the inner beam body; or, the front floor cross beam is connected to each side of the inner beam body through a bracket.

[0008] Further, at least two front floor cross beams are arranged at intervals in the front-rear direction of the whole vehicle; viewed from the up-down direction of the whole vehicle, one of the front floor cross beams is located between the B-pillars on the left and right sides of the vehicle body middle.

[0009] Furthermore, a side step mounting frame is provided on the outer side beam body; the side step mounting frame extends along the front-rear direction of the whole vehicle, and in the left-right direction of the whole vehicle, one side of the side step mounting frame is connected to the outer side beam body, and the other side of the side step mounting frame extends in a direction pointing to the outside of the vehicle.

[0010] Furthermore, the side step mounting frame is integrally formed with the outer side beam body, or the side step mounting frame is connected to the outer side beam body via a connecting structure.

[0011] Furthermore, a cavity extending along the front-rear direction of the vehicle is formed in the side step mounting frame, and the side step mounting frame includes a connecting portion connected to the outer beam body, and an extended portion connected to the connecting portion; in the left-right direction of the vehicle, the wall thickness of the extended portion is gradually increased along the direction pointing to the connecting portion.

[0012] Furthermore, a support structure is provided on one side of the outer beam body facing the inner beam body; in the left-right direction of the vehicle, one side of the support structure is connected to the outer beam body, and the other side of the support structure extends toward the inner beam body with a gap between the inner beam body and the outer beam body.

[0013] Furthermore, the support structure is integrally formed on the outer beam body, and a cavity arranged along the front-rear direction of the vehicle is formed inside the support structure; and / or, the support structure extends along the front-rear direction of the vehicle, and the support structure is connected to the front floor crossbeam in the left-right direction of the vehicle.

[0014] Furthermore, the outer side beam, the side step mounting frame and the supporting structure are all made of extruded profiles.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The vehicle body frame structure described in the utility model, by using a threshold beam formed by buckling the inner beam body and the outer beam body, and a front floor beam using an extruded profile, helps to reduce the number of components of the threshold beam and the front floor beam, and is conducive to the preparation of the vehicle body structure. At the same time, the setting of the multi-cavity energy absorption structure in the outer beam body can increase the side impact energy absorption capacity of the threshold position, and can use the through-type design of the front floor beam to form a transverse through-going side impact force transmission channel, ensure the transmission and dispersion effect of the side impact force, and thus help to improve the side impact safety of the whole vehicle.

[0017] In addition, the front floor crossbeam is directly connected to the inner beam body, which can reduce the body components and is beneficial to reducing the material cost. The front floor crossbeam is connected to the inner beam bodies on each side through brackets, which is conducive to the connection between the front floor crossbeam and the sill beam and ensures the connection effect. At least two front floor crossbeams are arranged at intervals, which can increase the lateral stiffness of the middle part of the body and also increase the lateral force transmission channel during side impact, improving the side impact force transmission effect. One of the front floor crossbeams is arranged between the two B-pillars on both sides, which can play a lateral support role on the B-pillar position during side impact.

[0018] In addition, a side step mounting skeleton is provided on the outer beam body, which is beneficial to the setting of the vehicle side step. At the same time, an energy absorption space can be formed by using the side step mounting skeleton extending on the side of the body, which can improve the energy absorption effect during the whole vehicle side impact. The side step mounting skeleton is integrally formed with the outer beam body, which is convenient for the production and preparation of the outer beam body and the side step mounting skeleton, and has good connection strength. The side step mounting skeleton is connected to the outer beam body through a connection structure, which can increase the flexibility of the side step mounting skeleton setting, facilitate the disassembly and assembly of the side step mounting skeleton, and thus is beneficial to the maintenance and replacement of the side step mounting skeleton.

[0019] Moreover, a cavity is formed inside the side step mounting skeleton. By using the characteristic that the cavity has good structural strength, the structural strength of the side step mounting skeleton itself is strengthened. And by making the thickness of the extended part gradually increase from the outside to the inside along the direction pointing to the connecting part, the extended part of the side step mounting skeleton forms a step-by-step collapsible energy absorption, which helps to improve the energy absorption effect.

[0020] Furthermore, a support structure is provided on the side of the outer beam body facing the inner beam body. The outer beam body and the support structure are arranged in an overlapping manner in the left-right direction of the whole vehicle, which can increase the lateral support ability at the sill beam position. A gap is reserved between the support structure and the inner beam body, which can also avoid abnormal noise problems due to too close distance after assembly. The support structure is integrally formed on the outer beam body, which is beneficial to the preparation of the support structure. A cavity is formed inside the support structure to improve the side impact force transmission path. And the support structure and the front floor crossbeam are connected in the left-right direction of the whole vehicle, and a force transmission channel is formed between the support structure and the front floor crossbeam, which is beneficial to improving the collision force dispersion effect.

[0021] Finally, the outer beam body, as well as the side step mounting skeleton and the support structure, are all made of extruded profiles, which is convenient for preparation and can also ensure their structural strength.

[0022] Another object of the present invention is to provide a vehicle, in which the above-mentioned body frame structure is provided.

[0023] The vehicle and / or the body frame structure according to the present invention have the same technical effects as the prior art, which will not be elaborated here. Description of the Drawings

[0024] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the body frame structure according to the first embodiment of the present utility model;

[0026] Figure 2 It is of the present utility model Figure 1 The sectional view at the position shown by A-A in it;

[0027] Figure 3 It is a schematic diagram of the structure of the outer beam according to the first embodiment of the present utility model;

[0028] Explanation of the reference numerals in the drawings:

[0029] 1, sill beam; 101, inner beam; 102, outer beam; 103, connecting plate;

[0030] 2, front floor cross beam; 201, front floor panel;

[0031] 3, B-pillar;

[0032] 4, side step mounting skeleton; 401, connecting part; 402, extending part;

[0033] 5, support structure. Detailed implementation manners

[0034] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0035] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures, technologies, etc. are put forward in order to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, the detailed descriptions of well-known systems, devices, circuits and methods are omitted so as not to impede the description of the present application due to unnecessary details.

[0036] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0038] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0039] Embodiment 1

[0040] This embodiment relates to a body frame structure. In terms of the overall structure, as Figure 1 , Figure 2 and Figure 3 shown, it includes sill beams 1 respectively arranged on the left and right sides in the middle of the body, and a front floor crossbeam 2 connected to the two side sill beams 1.

[0041] Among them, both side sill beams 1 include an inner beam body 101 and an outer beam body 102 that are snap-connected together, and the inner beam body 101 is made of steel sheet metal, and the cross-section of the outer beam body 102 is set as a multi-chamber energy-absorbing structure. The front floor crossbeam 2 is integrally formed by an extruded profile, and the front floor crossbeam 2 runs through in the left-right direction of the whole vehicle and is connected between the two inner beam bodies 101.

[0042] As described above, by adopting the sill beam 1 composed of the snap connection of the inner beam body 101 and the outer beam body 102, and the front floor crossbeam 2 made of an extruded profile, it helps to reduce the number of parts of the sill beam 1 and the front floor crossbeam 2, which is beneficial to the preparation of the body structure. At the same time, the setting of the multi-chamber energy-absorbing structure in the outer beam body 102 can increase the side collision energy absorption capacity at the sill position, and can utilize the through-type design of the front floor crossbeam 2 to form a laterally penetrating side collision force transmission channel, ensuring the transmission and dispersion effect of the side collision force, thereby being beneficial to improving the side collision safety of the whole vehicle.

[0043] Based on the above overall introduction, specifically, the inner beam body 101 of this embodiment is made of steel sheet metal, which has good structural strength. In specific implementation, the inner beam body 101 of this embodiment is in a "U" - shaped structure with an opening facing outward, that is, the opening of the inner beam body 101 faces the parking space side. At the same time, the outer beam body 102 is buckled at the opening of the inner beam body 101, so that the inner beam body 101 and the outer beam body 102 enclose and form the threshold beam 1 cavity. In addition, in order to facilitate the connection between the inner beam body 101 and the outer beam body 102, one or both of the top and bottom of the outer cross - beam of this embodiment are provided with connecting plates 103, and the upper and lower sides of the inner cross - beam are formed with outward - turned edges. Connecting the inner beam body 101 to the outer beam body 102 through the connecting plate 103 can, with the help of the connection of the connecting plate 103, make it convenient for the outer beam body 102 to be welded to surrounding components, thus avoiding inconvenience to the work of the general assembly welding line body.

[0044] In addition, the front floor cross - beam 2 is made of extruded profiles and is arranged on the top of the front floor panel 201. The advantages of light weight and high strength of the extruded profiles can be utilized to fully reduce the weight of the structure of the front floor cross - beam 2, which is beneficial to the overall lightweight design of the vehicle body. In specific implementation, as a preferred embodiment, when the front floor cross - beam 2 is extruded, preferably, extruded aluminum can be used.

[0045] In this embodiment, as a specific implementation manner, the front floor cross - beam 2 of this embodiment is directly connected to each side of the inner beam body 101, which can reduce the body parts and is beneficial to reducing the material cost. Or, the front floor cross - beam 2 of this embodiment is connected to each side of the inner beam body 101 through a bracket, which is beneficial to the connection between the front floor cross - beam 2 and the threshold beam 1 to ensure the connection effect between the front floor cross - beam 2 and the threshold beam 1.

[0046] In specific implementation, the front floor cross - beam 2 and each side of the inner beam body 101 can be directly connected by welding to ensure the connection strength between the front floor cross - beam 2 and the inner beam body 101. In addition, the brackets of this embodiment can be made of sheet - metal brackets or brackets made of extruded profiles to ensure the structural strength of the brackets. At the same time, the brackets can be connected and fixed to the front floor cross - beam 2 and the inner beam body 101 brackets by means of screwing, riveting, etc.

[0047] To further improve side impact safety, there are at least two front floor cross-members 2 in this embodiment, which are arranged at intervals in the longitudinal direction of the whole vehicle. Looking from the up-down direction of the whole vehicle, one of the front floor cross-members 2 is located between the B-pillars 3 on the left and right sides of the vehicle body. By arranging multiple front floor cross-members 2 at intervals in the front-rear direction, not only can the lateral stiffness of the middle part of the vehicle body be better increased, but also the lateral force transmission channel during side impact can be increased, which helps to improve the side impact force transmission effect. At the same time, arranging one of the front floor cross-members 2 between the two B-pillars 3 can make the front floor cross-member 2 play a lateral support role on the position of the B-pillar 3 during side impact, which helps to increase the anti-extrusion ability of the position of the B-pillar 3, and to a certain extent, avoid the B-pillar 3 and the sill beam 1 from invading the occupant compartment due to collision, thus being beneficial to improving the occupant safety of the whole vehicle.

[0048] As a specific implementation form, as Figure 2 and Figure 3 shown, in this embodiment, a side step mounting skeleton 4 is provided on the outer beam body 102. The side step mounting skeleton 4 extends in the longitudinal direction of the whole vehicle, and in the left-right direction of the whole vehicle, one side of the side step mounting skeleton 4 is connected to the outer beam body 102, and the other side of the side step mounting skeleton 4 extends in the direction pointing out of the vehicle. By setting the side step skeleton, it is not only beneficial to the setting of the vehicle side step, but also can form an energy absorption space by using the side step mounting skeleton 4 extending outside the side part of the vehicle body, which can improve the energy absorption effect during side impact of the whole vehicle.

[0049] Specifically, the side step mounting skeleton 4 of this embodiment is integrally formed with the outer beam body 102, which is convenient for the production and preparation of the outer beam body 102 and the side step mounting skeleton 4, and at the same time has good connection strength, which can ensure the connection strength and reliability between the outer beam body 102 and the side step mounting skeleton 4. Or, the side step mounting skeleton 4 of this embodiment is connected to the outer beam body 102 through a connection structure, which can increase the flexibility of the setting of the side step mounting skeleton 4, facilitate the disassembly and assembly of the side step mounting skeleton 4, and thus facilitate the maintenance and replacement work of the side step mounting skeleton 4. During specific implementation, the connection structure can be a screwed connection structure between the outer beam body 102 and the side step mounting skeleton 4, which has a simple structure and is convenient for assembly. Of course, it can also be other connection structures as long as the side step mounting skeleton 4 and the outer beam body 102 can be stably connected.

[0050] In addition, a cavity extending in the longitudinal direction of the whole vehicle is formed inside the side step mounting skeleton 4 of this embodiment, and the side step mounting skeleton 4 includes a connection part 401 connected to the outer beam body 102 and an extension part 402 connected to the connection part 401. In the left-right direction of the whole vehicle, along the direction pointing to the connection part 401, the wall thickness of the extension part 402 is gradually increased.

[0051] Thus, by forming a cavity within the side step mounting frame 4, the characteristics of the cavity having good structural strength can be utilized to strengthen the structural strength of the side step mounting frame 4 itself. By setting the thickness of the extension portion 402 to gradually increase in the direction pointing to the connection portion 401, that is, in the direction pointing into the vehicle, the stiffness of the extension portion 402 increases gradually from the outside to the inside. Thus, during a side impact of the whole vehicle, the extension portion 402 of the side step mounting frame 4 forms a step-by-step collapse and energy absorption, which helps to improve the energy absorption effect. In specific implementation, in order to reduce the weight of the side step mounting frame 4 and facilitate the lightweight design of the whole vehicle, the cross-section of the side step mounting frame 4 is flat.

[0052] In addition, as Figure 2 and Figure 3 shown, a support structure 5 is provided on the side of the outer beam body 102 of the present embodiment facing the inner beam body 101. In the left-right direction of the whole vehicle, one side of the support structure 5 is connected to the outer beam body 102, and the other side of the support structure 5 extends towards the inner beam body 101 and leaves a gap with the inner beam body 101. By providing the support structure 5, the structural strength of the sill beam 1 can be increased. The outer beam body 102 and the support structure 5 are arranged in an overlapping manner in the left-right direction of the whole vehicle, which can improve the lateral support force of the outer beam body 102, thereby increasing the lateral support ability at the position of the sill beam 1 during a side impact of the whole vehicle. At the same time, a gap is reserved between the support structure 5 and the inner beam body 101, which can also avoid abnormal noise problems due to too close distance after assembly. In specific implementation, the above gap is between 3 - 10 mm, and can preferably be set to 4 mm, 5 mm, 6 mm, etc.

[0053] On this basis, the support structure 5 of the present embodiment is integrally formed on the outer beam body 102, and a cavity is formed inside the support structure 5 and arranged along the front-rear direction of the whole vehicle. By integrally forming the support structure 5 on the outer beam body 102, it is beneficial to the preparation of the support structure 5 and also helps to ensure its structural strength. At the same time, by forming a cavity inside the support structure 5, the side impact force transmission path is improved, and the support structure 5 divides the inner part of the cavity of the sill beam 1 into two nested force transmission channels, which can form an inner and outer two-stage collapse and energy absorption, so that the whole sill beam 1 has a good energy absorption effect. At the same time, the characteristics of the large structural strength of the cavity structure can be utilized to better ensure the structural strength of the outer beam body 102 part.

[0054] Moreover, the support structure 5 of the present embodiment extends along the front-rear direction of the whole vehicle, and the support structure 5 is connected to the front floor cross beam 2 in the left-right direction of the whole vehicle, that is, the projections of the support structure 5 and the front floor cross beam 2 in the left-right direction of the whole vehicle at least partially overlap. Thus, during a side impact of the whole vehicle, a force transmission channel is formed between the support structure 5 and the front floor cross beam 2, which is beneficial to improving the collision force dispersion effect.

[0055] Finally, it is worth mentioning that the outer beam body 102, the side step mounting skeleton 4 and the support structure 5 in this embodiment are all supported by extruded profiles, which is convenient for preparation, can ensure their structural strength, and can increase the energy absorption capacity during the side collision of the whole vehicle, contributing to improving the vehicle safety. In specific implementation, the outer beam body 102, the side step mounting skeleton 4 and the support structure 5 in this embodiment are preferably made of extruded aluminum during extrusion molding, which can ensure that the outer beam body 102 has sufficient structural strength and at the same time reduce the overall weight of the sill beam 1, facilitating the lightweight design of the whole vehicle.

[0056] In summary, for the body frame structure of this embodiment, by adopting the sill beam 1 composed of the inner beam body 101 and the outer beam body 102 buckled together, and the front floor cross beam 2 made of extruded profiles, it helps to reduce the number of parts of the sill beam 1 and the front floor cross beam 2, which is beneficial to the preparation of the body structure. At the same time, the setting of the multi-cavity energy absorption structure in the outer beam body 102 can increase the side collision energy absorption capacity at the sill position, and can form a laterally penetrating side collision force transmission channel by using the through-type design of the front floor cross beam 2, ensuring the transmission and dispersion effect of the side collision force, so as to be beneficial to improving the side collision safety of the whole vehicle and having good practicability.

[0057] Embodiment 2

[0058] This embodiment relates to a vehicle, in which a body frame structure as described in Embodiment 1 is provided.

[0059] By setting the above body frame structure in the vehicle of this embodiment, it helps to reduce the number of parts of the sill beam 1 and the front floor cross beam 2, which is beneficial to the preparation of the body structure. At the same time, multiple force transmission channels are formed between the sill beam 1 and the front floor cross beam 2. When the vehicle has a side collision, the setting of the above body frame structure can ensure the transmission and dispersion effect of the side collision force, thus being beneficial to improving the side collision safety of the whole vehicle.

[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle body frame structure, characterized in that: It comprises a sill beam (1) arranged on the left and right sides of the middle part of the vehicle body, and a front floor cross beam (2) connected to the sill beams (1) on both sides; The threshold beams (1) on both sides each comprise an inner beam body (101) and an outer beam body (102) that are buckled and connected together, and the inner beam body (101) is made of steel sheet metal, and the cross section of the outer beam body (102) is configured as a multi-cavity energy absorption structure; The front floor cross beam (2) is integrally formed by using an extruded profile, and the front floor cross beam (2) is arranged to penetrate the entire vehicle in the left-right direction and is connected between the inner beam bodies (101) on both sides.

2. The vehicle body frame structure according to claim 1, characterized in that: The front floor cross beam (2) is directly connected to the inner beam bodies (101) on each side; or, The front floor cross beam (2) and the inner beam bodies (101) on each side are connected via brackets.

3. The vehicle body frame structure according to claim 1, characterized in that: The front floor cross beams (2) are at least two arranged at intervals along the front-rear direction of the vehicle; Viewed from the upper and lower directions of the vehicle, one of the front floor cross beams (2) is located between the left and right B pillars (3) in the vehicle body.

4. The vehicle body frame structure according to any one of claims 1 to 3, characterized in that: A side step mounting frame (4) is provided on the outer side beam body (102); The side step mounting frame (4) extends in the front-rear direction of the vehicle, and in the left-right direction of the vehicle, one side of the side step mounting frame (4) is connected to the outer side beam body (102), and the other side of the side step mounting frame (4) extends in a direction pointing outward from the vehicle.

5. The vehicle body frame structure according to claim 4, characterized in that: The side step mounting frame (4) is integrally formed with the outer side beam body (102), or the side step mounting frame (4) is connected to the outer side beam body (102) via a connecting structure.

6. The vehicle body frame structure according to claim 4, characterized in that: The side step mounting frame (4) has a cavity extending in the front-rear direction of the vehicle formed therein, and the side step mounting frame (4) comprises a connecting portion (401) connected to the outer side beam body (102), and an extension portion (402) connected to the connecting portion (401); In the left-right direction of the vehicle, along the direction pointing to the connecting part (401), the wall thickness of the extension part (402) is gradually increased.

7. The vehicle body frame structure according to claim 4, characterized in that: A support structure (5) is provided on a side of the outer beam body (102) facing the inner beam body (101); In the left-right direction of the vehicle, one side of the support structure (5) is connected to the outer beam body (102), and the other side of the support structure (5) extends toward the inner beam body (101) with a gap between the inner beam body (101).

8. The vehicle body frame structure according to claim 7, characterized in that: The support structure (5) is integrally formed on the outer beam body (102), and a cavity arranged along the front-rear direction of the vehicle is formed inside the support structure (5); and / or, The support structure (5) extends along the front-rear direction of the vehicle, and the support structure (5) is connected to the front floor cross beam (2) in the left-right direction of the vehicle.

9. The vehicle body frame structure according to claim 7, characterized in that: The outer side beam body (102), the side step mounting frame (4) and the supporting structure (5) are all made of extruded profiles.

10. A vehicle, characterized in that: The vehicle is provided with the vehicle body frame structure according to any one of claims 1 to 9.

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