Vehicle body floor assembly and vehicle

Abstract

The invention discloses a vehicle body floor assembly and a vehicle. The vehicle body floor assembly comprises a vehicle body floor; the seat cross beam is detachably connected with the vehicle body floor, at least one seat installation support and / or at least one child seat support are / is arranged on the seat cross beam in an integrated mode, and the seat installation support is suitable for being fixedly connected with a seat of the vehicle. The child seat support is suitable for being fixedly connected with a child seat of the vehicle. According to the vehicle body floor assembly, the seat installation support and / or the child seat support are / is integrally arranged on the seat cross beam, and the seat cross beam is detachably connected with the vehicle body floor, so that decoupling of the seat installation support and / or the child seat support and the vehicle body floor can be achieved; therefore, installation of the seat cross beam can be selected according to seat configuration requirements, generalization of the vehicle body floor in different vehicle types is achieved, the number of types of the vehicle body floor is reduced, and the development cost and the development period are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle body floor assembly and a vehicle. Background Art

[0002] In the related art, automobile seats require seat mounting brackets, seat pivot mounting brackets and child seat brackets. Usually, the automobile body floor adopts the form of welded sheet metal brackets to provide corresponding seat mounting brackets, seat pivot mounting brackets and child seat brackets. However, the welding structure requires the development of corresponding manufacturing tooling, which makes production complicated and affects production line design and investment. Moreover, automobile seats have a variety of configuration forms, and the positions of the seat mounting brackets, seat pivot mounting brackets and child seat brackets are different in each configuration. The body floor cannot flexibly match the corresponding changes, and it is necessary to develop a variety of body floors. Different body floors need to be monitored and managed separately, which requires higher automation and intelligence of the production line. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a vehicle body floor assembly, which can achieve decoupling of a seat mounting bracket and / or a child seat bracket from the vehicle body floor, so that the installation of the seat crossbeam can be selected according to the seat configuration requirements, so as to achieve the universalization of the vehicle body floor in different vehicle models, which is conducive to reducing the types of vehicle body floors.

[0004] According to an embodiment of the present invention, a vehicle body floor assembly includes: a vehicle body floor; a seat cross beam, wherein the seat cross beam is detachably connected to the vehicle body floor, and at least one seat mounting bracket and / or at least one child seat bracket is integrated on the seat cross beam, wherein the seat mounting bracket is suitable for being fixedly connected to a seat of a vehicle, and the child seat bracket is suitable for being fixedly connected to a child seat of the vehicle.

[0005] According to the vehicle body floor assembly of an embodiment of the present invention, the seat mounting bracket and / or the child seat bracket are integrated on the seat cross beam, and the seat cross beam is detachably connected to the vehicle body floor. In this way, the seat mounting bracket and / or the child seat bracket can be decoupled from the vehicle body floor, so that the installation of the seat cross beam can be selected according to the seat configuration requirements to realize the commonality of the vehicle body floor in different vehicle models, which is conducive to reducing the types of vehicle body floors and reducing development costs and cycles.

[0006] According to the vehicle body floor assembly of some embodiments of the present invention, the vehicle body floor includes a floor body and a wheel cover assembly, the seat cross beam includes a main body portion and a connecting portion, the main body portion is connected to the floor body, and the connecting portion is integrated in the main body portion and connected to the wheel cover assembly.

[0007] According to the vehicle body floor assembly of some embodiments of the present invention, the main body portion extends along the width direction of the vehicle, and the connecting portions are disposed at both ends of the main body portion.

[0008] According to the vehicle body floor assembly of some embodiments of the present invention, the seat mounting bracket and the child seat bracket are spaced apart and distributed in the width direction of the vehicle.

[0009] According to the vehicle body floor assembly of some embodiments of the present invention, two seat mounting brackets are provided, and the two seat mounting brackets are respectively located at two ends of the seat cross beam in the width direction of the vehicle.

[0010] According to the vehicle body floor assembly of some embodiments of the present invention, the child seat bracket is located between the two seat mounting brackets.

[0011] According to the vehicle body floor assembly of some embodiments of the present invention, the seat mounting bracket is configured as a high seat mounting bracket, and the child seat bracket is configured as a high seat child bracket.

[0012] According to the vehicle body floor assembly of some embodiments of the present invention, the seat mounting bracket is configured as a low seat mounting bracket, and the child seat bracket is configured as a low seat child bracket.

[0013] According to the vehicle body floor assembly of some embodiments of the present invention, a seat shaft mounting bracket is further provided on the seat cross beam, and the rotating shaft of the seat is suitable for being connected to the seat shaft mounting bracket.

[0014] The present invention also provides a vehicle.

[0015] A vehicle according to an embodiment of the present invention comprises: a vehicle body floor assembly as described in any one of the above embodiments.

[0016] The advantages of the vehicle and the above-mentioned vehicle body floor assembly over the prior art are the same and will not be described in detail here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a vehicle body floor assembly according to some embodiments of the present invention;

[0020] Figure 2 is a schematic diagram of a vehicle body floor assembly according to some other embodiments of the present invention;

[0021] Figure 3 is a schematic diagram of a vehicle body floor according to some further embodiments of the present invention;

[0022] Figure 4 is a schematic diagram of a seat crossbar according to some embodiments of the present invention;

[0023] Figure 5 is a schematic diagram of a seat crossbar according to some other embodiments of the present invention;

[0024] Figure 6 is a schematic diagram of a vehicle according to some embodiments of the present invention.

[0025] Reference numerals:

[0026] Vehicles 1000;

[0027] The vehicle body floor assembly 100 is in the width direction Y of the vehicle;

[0028] Vehicle body floor 10, floor body 11, wheel cover assembly 12, floor crossbeam 13;

[0029] Seat cross beam 20, high seat cross beam 20a, low seat cross beam 22b;

[0030] Main body 21, connecting portion 22;

[0031] Seat mounting bracket 30, high seat mounting bracket 30a, low seat mounting bracket 30b;

[0032] Child seat bracket 40, high child seat bracket 40a, low child seat bracket 40b;

[0033] The seat rotation axis mounting frame 50 includes a high seat rotation axis mounting frame 50a and a low seat rotation axis mounting frame 50b. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0036] Reference below Figure 1-Figure 6 A vehicle body floor assembly 100 according to an embodiment of the present invention is described.

[0037] The vehicle body floor assembly 100 according to the embodiment of the present invention includes a vehicle body floor 10 and a seat cross member 20 .

[0038] The seat cross beam 20 is detachably connected to the vehicle body floor 10, and at least one seat mounting bracket 30 and / or at least one child seat bracket 40 are integrated on the seat cross beam 20. The seat mounting bracket 30 is suitable for being fixedly connected to a seat of the vehicle 1000, and the child seat bracket 40 is suitable for being fixedly connected to a child seat of the vehicle 1000.

[0039] “The seat cross beam 20 is detachably connected to the vehicle body floor 10” includes but is not limited to the seat cross beam 20 being connected to the vehicle body floor 10 by bolts, snap-fitting, plug-in connection, magnetic attraction, or the like.

[0040] “At least one seat mounting bracket 30 and / or at least one child seat bracket 40 is integrated on the seat cross beam 20” means that at least one seat mounting bracket 30 is integrated on the seat cross beam 20, and the child seat bracket 40 can be directly welded to the vehicle body floor 10; or at least one child seat bracket 40 is integrated on the seat cross beam 20, and the seat mounting bracket 30 can be directly welded to the vehicle body floor 10; or at least one seat mounting bracket 30 and at least one child seat bracket 40 are integrated on the seat cross beam 20.

[0041] “Integrated arrangement” includes but is not limited to the seat mounting bracket 30 and / or the child seat bracket 40 being welded, bolted, or integrally formed with the seat cross beam 20 .

[0042] Among them, two seat mounting brackets 30 can be provided, and two or four child seat brackets 40 can be provided. Of course, the number of seat mounting brackets 30 and child seat brackets 40 can be set according to actual seat assembly requirements and is not limited here.

[0043] In this way, the seat mounting bracket 30 and / or the child seat bracket 40 can be decoupled from the vehicle body floor 10, so that the installation of the seat cross beam 20 can be selected according to the seat configuration requirements to achieve the commonality of the vehicle body floor 10 in different vehicle models, which is conducive to reducing the types of vehicle body floors 10 and reducing development costs and cycles.

[0044] For example, the seat cross beam 20 is integrated with a seat mounting bracket 30 and a child seat bracket 40 to meet the relevant design requirements of the seat, and the seat mounting bracket 30 and the child seat bracket 40 can be directly welded to the seat cross beam 20 to enhance its structural stability. Of course, the seat mounting bracket 30 and the child seat bracket 40 can also be directly integrally formed with the seat cross beam 20 to reduce its assembly steps and reduce its production cost. Among them, two seat mounting brackets 30 can be provided, and two or four child seat brackets 40 can be provided. Of course, different numbers of seat mounting brackets 30 and child seat brackets 40 can also be provided according to needs.

[0045] Furthermore, during actual assembly, the seat cross beam 20 can be fixed to the vehicle body floor 10 by bolts to achieve decoupling of the seat mounting bracket 30 and / or the child seat bracket 40 from the vehicle body floor 10, so that the installation of the seat cross beam 20 can be selected according to the seat configuration requirements to achieve the commonality of the vehicle body floor 10 in different vehicle models, which is conducive to reducing the types of vehicle body floors 10 and reducing development costs and cycles.

[0046] It should be noted that in the related art, a car seat requires a seat mounting bracket 30, a seat pivot mounting bracket 50 and a child seat bracket 40. Usually, the car body floor 10 adopts a welded sheet metal bracket to provide the corresponding seat mounting bracket 30, the seat pivot mounting bracket 50 and the child seat bracket 40, that is, the seat mounting bracket 30, the seat pivot mounting bracket 50 and the child seat bracket 40 are directly welded to the car body floor 10, but the welding structure requires the development of corresponding manufacturing tooling, which makes the production complicated and affects the production line design and investment.

[0047] Moreover, there are many models of vehicle 1000. For example, in general, vehicle 1000 can be divided into high-seat vehicles (such as SUV models, etc.) or low-seat vehicles (such as ordinary sedans, etc.). The seats of these two types of vehicles 1000 are at different heights relative to the ground or the body floor 10. Therefore, the car seats have various configurations. In each configuration, the height and position of the seat mounting bracket 30, the seat shaft mounting bracket 50 and the child seat bracket 40 are different, resulting in the body floor 10 being unable to flexibly match the corresponding changes. It is necessary to develop multiple body floors 10, and different body floors 10 need to be monitored and managed separately, which requires higher automation and intelligence of the production line.

[0048] In the present invention, by setting the seat cross beam 20, when facing the production of different vehicle models, the seat cross beam 20 can be set accordingly according to the seat configuration of different vehicle models, wherein the seat mounting bracket 30, the seat shaft mounting bracket 50 and the child seat bracket 40 with different heights and positions can be directly welded to the seat cross beam 20, and then the assembled seat cross beam 20 is fixed to the vehicle body floor 10 by bolts, so as to reduce the vehicle body welding process, simplify the production line and production process, and reduce the production line investment.

[0049] In this way, the seat mounting bracket 30 and / or the child seat bracket 40 are decoupled from the vehicle body floor 10 (body-in-white category), which can effectively reduce the types of body-in-white and reduce the production line's demand for automated and intelligent monitoring of the body-in-white. Therefore, when different vehicle models are produced, the body floor 10 can be universal, and the seat cross beam 20 can be installed as required. In the case of a seat configuration without installation requirements, it is not installed, thereby avoiding the cost waste and space impact caused by unnecessary welding of bracket parts. The seat cross beam 20 can also realize the universalization of some bracket parts, reduce the cost and cycle of parts development, and simplify the design.

[0050] According to the vehicle body floor assembly 100 of the embodiment of the present invention, the seat mounting bracket 30 and / or the child seat bracket 40 are integrated on the seat cross beam 20, and the seat cross beam 20 is detachably connected to the vehicle body floor 10. In this way, the seat mounting bracket 30 and / or the child seat bracket 40 can be decoupled from the vehicle body floor 10, so that the installation of the seat cross beam 20 can be selected according to the seat configuration requirements to realize the commonality of the vehicle body floor 10 in different vehicle models, which is conducive to reducing the types of vehicle body floors 10 and reducing development costs and cycles.

[0051] In some embodiments, Figure 1 and Figure 2 As shown, a floor cross beam 13 is provided on the vehicle body floor 10 , and a seat cross beam 20 is provided parallel to the floor cross beam 13 , and in the front-rear direction of the vehicle 1000 , the seat cross beam 20 is located on a side of the floor cross beam 13 facing the front end of the vehicle 1000 .

[0052] Therefore, the arrangement of the seat cross beam 20 will not interfere with the floor cross beam 13 , making the layout of the seat cross beam 20 more reasonable.

[0053] In some embodiments, Figure 1 As shown, the vehicle body floor 10 includes a floor body 11 and a wheel cover assembly 12 , and the seat cross beam 20 includes a main body portion 21 and a connecting portion 22 , the main body portion 21 is connected to the floor body 11 , and the connecting portion 22 is integrated in the main body portion 21 and connected to the wheel cover assembly 12 .

[0054] Thus, the main body 21 and the connecting portion 22 of the seat cross beam 20 are connected to the floor body 11 and the wheel cover assembly 12 respectively, so that the seat cross beam 20 and the vehicle body floor 10 can have multiple connection positions to enhance the connection strength and connection stability between the seat cross beam 20 and the vehicle body floor 10.

[0055] The connecting portion 22 is integrated with the main body 21 , for example, the main body 21 and the connecting portion 22 are an integrally formed structure, so as to enhance the structural strength of the seat cross beam 20 . Figure 4 and Figure 5 As shown, the main body 21 can be constructed as a rod-shaped structure, and the seat mounting bracket 30 and / or the child seat bracket 40 are welded to the outer peripheral wall of the rod-shaped structure, so as to increase the connection area between the seat mounting bracket 30 and / or the child seat bracket 40 and the main body 21 while saving layout space, so as to enhance their connection strength.

[0056] For example Figure 4 and Figure 5 As shown, the connecting portion 22 can be constructed as a flared structure to increase the contact area between the connecting portion 22 and the wheel cover assembly 12 when the connecting portion 22 is connected to the wheel cover assembly 12, and can define a sound-absorbing and vibration-reducing cavity between the connecting portion 22 and the wheel cover assembly 12, thereby facilitating enhancing the NVH performance of the vehicle 1000.

[0057] Of course, the main body 21 and the connecting portion 22 may also be constructed as other structures that meet usage requirements, which is not limited here.

[0058] In some embodiments, Figure 1 and Figure 2 As shown, the main body 21 extends along the width direction Y of the vehicle 1000 , and connection portions 22 are provided at both ends of the main body 21 .

[0059] As a result, the extension direction of the main body 21 can match the width direction Y of the vehicle 1000, thereby meeting the seat layout requirements, and connecting parts 22 are provided at both ends of the main body 21, so that the two connecting parts 22 can be respectively connected to the left and right wheel arch assemblies 12, thereby enhancing the connection strength between the seat cross beam 20 and the vehicle body floor 10.

[0060] In some embodiments, Figure 1-Figure 3 As shown, the seat mounting bracket 30 and the child seat bracket 40 are spaced apart from each other in the width direction Y of the vehicle 1000 .

[0061] Therefore, by arranging the seat mounting bracket 30 and the child seat bracket 40 to be spaced apart and distributed in the width direction Y of the vehicle 1000 to avoid interference between the arrangement positions of the seat and the child seat, it is convenient to arrange a seat mounting bracket 30 and a child seat bracket 40 on the seat cross beam 20, and the seat and the child seat can be arranged on the seat cross beam 20 along the width direction Y of the vehicle 1000, thereby avoiding interference between the two and helping to reduce the difficulty of arrangement.

[0062] In some embodiments, Figure 4 and Figure 5 As shown, two seat mounting brackets 30 are provided, and the two seat mounting brackets 30 are respectively located at two ends of the seat cross beam 20 in the width direction Y of the vehicle 1000 .

[0063] Thus, by fixing two seat mounting brackets 30 at both ends of the seat cross beam 20 in the width direction Y of the vehicle 1000, the two seat mounting brackets 30 are spaced apart in the width direction Y of the vehicle 1000, so that when each seat mounting bracket 30 fixes a corresponding seat, the two seats can be distributed in the width direction Y of the vehicle 1000 to avoid interference between the two seats. At the same time, during actual assembly, seats can be installed simultaneously on both sides of the width direction Y of the vehicle 1000 to improve assembly efficiency.

[0064] In some embodiments, Figure 4 and Figure 5 As shown, the child seat bracket 40 is located between the two seat mounting brackets 30 .

[0065] Therefore, by setting the child seat bracket 40 between the two seat mounting brackets 30, the setting position of the child seat bracket 40 can be staggered with the position of the seat mounting bracket 30 to avoid interference between the arrangement positions of the seat and the child seat, which is conducive to arranging a seat mounting bracket 30 and a child seat bracket 40 on the seat cross beam 20, and the seat and the child seat can be arranged on the seat cross beam 20 along the width direction Y of the vehicle 1000, thereby avoiding interference between the two and helping to reduce the difficulty of arrangement.

[0066] In some embodiments, Figure 4 As shown, the seat mounting bracket 30 is configured as a high seat mounting bracket 30 a , and the child seat bracket 40 is configured as a high child seat bracket 40 a .

[0067] It should be noted that the seat cross beam 20 can be constructed as a high seat cross beam 20a. In this case, the seat mounting bracket 30 is constructed as a high seat mounting bracket 30a, and the child seat bracket 40 is constructed as a high child seat bracket 40a, so that the seat cross beam 20 can meet the seat assembly requirements of high-seat vehicles.

[0068] In other embodiments, Figure 5 As shown, the seat mounting bracket 30 is configured as a low seat mounting bracket 30 b and the child seat bracket 40 is configured as a low child seat bracket 40 b.

[0069] It should be noted that the seat cross beam 20 can be constructed as a low seat cross beam 20b. In this case, the seat mounting bracket 30 is constructed as a low seat mounting bracket 30b, and the child seat bracket 40 is constructed as a low child seat bracket 40b, so that the seat cross beam 20 can meet the seat assembly requirements of low-seat vehicles.

[0070] In some further embodiments, Figure 5 As shown, when some vehicle models need to install sliding seats (sliding seats do not require seat mounting brackets 30), the seat cross beam 20 may not be installed, that is, the seat can be directly slidably mounted on the vehicle body floor 10. In this way, even when the sliding seat is installed, the seat mounting bracket 30 and / or the child seat bracket 40 will not affect the vehicle body floor 10, thereby improving the versatility of the vehicle body floor 10.

[0071] In some embodiments, Figure 4 and Figure 5 As shown, a seat rotation axis mounting frame 50 is also provided on the seat cross beam 20 , and the rotation axis of the seat is suitable for being connected to the seat rotation axis mounting frame 50 .

[0072] Therefore, by providing the seat rotation axis mounting bracket 50 to fix the rotation axis of the seat, the rotation axis of the seat can have a mounting fulcrum, thereby facilitating the adjustment of the angle of the seat.

[0073] For example, when the seat cross beam 20 is a high seat cross beam 20a, the seat shaft mounting bracket 50 may be configured as a high seat shaft mounting bracket 50a, or when the seat cross beam 20 is a low seat cross beam 20b, the seat shaft mounting bracket 50 may be configured as a low seat shaft mounting bracket 50b.

[0074] The present invention also provides a vehicle 1000 .

[0075] like Figure 6 As shown, a vehicle 1000 according to an embodiment of the present invention comprises: a vehicle body floor assembly 100 as described in any one of the above embodiments.

[0076] According to the vehicle 1000 of the embodiment of the present invention, the seat mounting bracket 30 and / or the child seat bracket 40 of the body floor assembly 100 are integrated on the seat cross beam 20, and the seat cross beam 20 is detachably connected to the body floor 10. In this way, the seat mounting bracket 30 and / or the child seat bracket 40 can be decoupled from the body floor 10, so that the installation of the seat cross beam 20 can be selected according to the seat configuration requirements to realize the commonality of the body floor 10 in different vehicle models, which is conducive to reducing the types of body floors 10 and reducing development costs and cycles.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0079] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0082] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle body floor assembly (100), characterized in that: include: Body floor (10); A seat crossbeam (20), wherein the seat crossbeam (20) is detachably connected to the vehicle body floor (10), and at least one seat mounting bracket (30) and / or at least one child seat bracket (40) are integrally arranged on the seat crossbeam (20), wherein the seat mounting bracket (30) is suitable for being fixedly connected to a seat of a vehicle (1000), and the child seat bracket (40) is suitable for being fixedly connected to a child seat of the vehicle (1000).

2. The vehicle body floor assembly (100) according to claim 1, characterized in that: The vehicle body floor (10) comprises a floor body (11) and a wheel cover assembly (12); the seat cross beam (20) comprises a body portion (21) and a connecting portion (22); the body portion (21) is connected to the floor body (11); and the connecting portion (22) is integrated in the body portion (21) and connected to the wheel cover assembly (12).

3. The vehicle body floor assembly (100) according to claim 2, characterized in that: The main body (21) extends along the width direction (Y) of the vehicle (1000), and the connecting parts (22) are provided at both ends of the main body (21).

4. The vehicle body floor assembly (100) according to claim 1, characterized in that: The seat mounting bracket (30) and the child seat bracket (40) are spaced apart and distributed in a width direction (Y) of the vehicle (1000).

5. The vehicle body floor assembly (100) according to claim 1, characterized in that: Two seat mounting brackets (30) are provided, and the two seat mounting brackets (30) are respectively located at two ends of the seat cross beam (20) in the width direction (Y) of the vehicle (1000).

6. The vehicle body floor assembly (100) according to claim 1, characterized in that: The child seat bracket (40) is located between the two seat mounting brackets (30).

7. The vehicle body floor assembly (100) according to claim 1, characterized in that: The seat mounting bracket (30) is configured as a high seat mounting bracket (30a), and the child seat bracket (40) is configured as a high child seat bracket (40a).

8. The vehicle body floor assembly (100) according to claim 1, characterized in that: The seat mounting bracket (30) is configured as a low seat mounting bracket (30b), and the child seat bracket (40) is configured as a low child seat bracket (40b).

9. The vehicle body floor assembly (100) according to claim 7 or 8, characterized in that: A seat rotation shaft mounting frame (50) is also provided on the seat crossbeam (20), and the rotation shaft of the seat is suitable for being connected to the seat rotation shaft mounting frame (50).

10. A vehicle (1000), characterized in that: include: The vehicle body floor assembly (100) according to any one of claims 1 to 9.

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