Seat mounting bracket and vehicle

Abstract

The seat mounting support comprises a first cross beam and a first frame beam, and the first cross beam is arranged in the width direction of the vehicle in an extending mode; the first frame beam is in a U shape, and the two ends of the U shape are connected with the two ends of the first cross beam in the length direction to define a first annular structure. Wherein the first cross beam comprises a cross beam main body and at least two supporting leg parts, and the at least two supporting leg parts extend downwards from the lower end face of the cross beam main body in the height direction of the vehicle and are distributed in the width direction of the vehicle at intervals, so that a containing cavity suitable for installing a seat lower assembly is formed in the interval position. Through the arrangement of the first annular structure and the containing cavity, on one hand, the overall dynamic stiffness of the support can be improved, the installation and bearing requirements of the seat body are met, on the other hand, effective installation and storage of seat lower assemblies such as leg supports can be achieved, the assembly precision and the assembly quality of the seat lower assemblies are guaranteed, and the space utilization rate of the support is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle structure technical field, concretely relates to a seat mounting support and vehicle. BACKGROUND

[0002] With the rapid development of the automobile industry and the accelerated iteration of automobile products, the driving needs of consumers are becoming more and more diversified. In order to improve the comfort of users, seat lower components such as leg rests need to be configured on the vehicle seat to enhance the functionality of the seat. However, the structure size of seat lower components such as leg rests is relatively large, and independent assembly on the seat has problems such as unstable connection and easy shaking, which seriously affects the user experience.

[0003] To this end, the prior art proposes to assemble related accessories on the seat mounting structure to improve its connection stability. However, the seat mounting points of some related technologies are arranged on the vehicle body or vehicle floor, and different seat configurations are used for different vehicle models, which wastes a lot of time and cost on vehicle body development and adaptation, and is not conducive to rapid response to market demand. Another part of the related technology proposes to use a seat mounting support for seat installation, but the seat mounting support of the prior art is mostly a dispersed arrangement of sheet metal members that need to be connected to the vehicle body or vehicle floor through welding. Not only is the number large and the size chain long, but there are also many welding points and a large welding heat effect. On this basis, the assembly of seat lower components such as leg rests is prone to problems such as poor assembly precision and insufficient connection point stiffness due to large cumulative dimensional tolerance of parts. SUMMARY

[0004] In view of the above problems, the utility model embodiment provides a seat mounting support and a vehicle, which can improve the integration level of the seat mounting support, and further improve the assembly precision and assembly quality of the seat lower component.

[0005] According to an aspect of the utility model embodiment, a seat mounting support is provided, which is used for mounting on the vehicle body floor, comprising: a first cross beam extending in the vehicle width direction; and a first frame beam, which is U-shaped, and the two ends of the U-shaped first frame beam are connected to the two ends of the length direction of the first cross beam to form a first annular structure; wherein the first cross beam comprises a cross beam main body and at least two leg portions, the at least two leg portions extend downward from the lower end surface of the cross beam main body in the vehicle height direction, and are distributed in the vehicle width direction at intervals, and a receiving cavity suitable for mounting a seat lower component is formed at the intervals.

[0006] In an exemplary embodiment of the utility model, the leg portions are provided with three, including a first leg, a second leg and a third leg distributed in the vehicle width direction in sequence; the receiving cavity includes a first chamber formed between the first leg and the second leg and a second chamber formed between the second leg and the third leg.

[0007] In an exemplary embodiment of the utility model, the second leg is internally provided with a third chamber suitable for mounting an air duct assembly or a drawer assembly, and a notch opening downward is further formed in the middle of the second leg, and the notch is in communication with the third chamber.

[0008] In an exemplary embodiment of the utility model, a connecting portion is further included, which is arranged in extension along the vehicle width direction and is connected between the two adjacent leg portions.

[0009] In an exemplary embodiment of the utility model, the first cross beam further includes at least one protruding portion, which is arranged in protrusion upward along the vehicle height direction at the upper end of the cross beam body.

[0010] In an exemplary embodiment of the utility model, the first cross beam is integrally formed with the first frame beam.

[0011] In an exemplary embodiment of the utility model, a second frame beam is further included, which is in U shape and has its two ends connected to the two ends of the first frame beam in length direction to enclose a second annular structure.

[0012] In an exemplary embodiment of the utility model, the second annular structure further includes at least one connecting beam, which is arranged in extension along the vehicle length direction and is connected between the second frame beam and the first frame beam.

[0013] In an exemplary embodiment of the utility model, the first frame beam, the second frame beam and the connecting beam are integrally formed.

[0014] According to the second aspect of the utility model embodiment, a vehicle is provided, which includes the above-mentioned seat mounting bracket.

[0015] The utility model forms a first annular structure through the first cross beam and the first frame beam, which can effectively improve the overall dynamic stiffness of the bracket, meet the installation and bearing requirements of the seat body above the seat cushion, and meanwhile, the first cross beam integrates a plurality of leg portions, which can effectively realize the installation of the leg rest and other lower components of the seat, ensure the assembly precision and quality, and further, the accommodating cavity formed by the adjacent leg portions can effectively accommodate the leg rest and other lower components of the seat, thereby improving the leg space utilization rate of the user and the comfort of the user during riding.

[0016] The above description is only a summary of the technical scheme of the utility model embodiment, and the technical means of the utility model embodiment can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the utility model embodiment more obvious and easy to understand, the specific implementation manner of the utility model is described below. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0018] Figure 1 The structural schematic diagram of the seat mounting bracket is shown.

[0019] Figure 2 The top view of the seat mounting bracket is shown.

[0020] Explanation of the reference signs:

[0021] 1-first cross beam, 11-cross beam body, 12-leg part, 121-first leg, 122-second leg, 1221-gap, 123-third leg, 13-receiving cavity, 131-first cavity, 132-second cavity, 133-third cavity, 14-connection part, 15-protrusion part,

[0022] 2-first frame beam, 21-second cross beam, 22-first longitudinal beam, 23-second longitudinal beam,

[0023] 3-second frame beam, 31-third cross beam, 32-third longitudinal beam, 33-fourth longitudinal beam,

[0024] 100-first annular structure, 101-first connection point, 1011-locking buckle connection point, 1012-anti-rotation boss, 102-first mounting point, 200-second annular structure, 201-second connection point, 202-second mounting point, 203-connection beam.

[0025] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0026] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art.

[0027] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the

[0028] The present application will be further described below in conjunction with the drawings and specific embodiments. It should be noted that the technical features involved in each of the embodiments of the present application described below can be combined with each other as long as there is no conflict. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] It should be noted that the "front", "rear", "left", "right", "upper", and "lower" directions mentioned in the embodiments of the present application, unless otherwise specified, are all with reference to the corresponding directions of the vehicle, and in the drawings, the x direction is the length direction of the vehicle, wherein the direction indicated by the arrow is the "front", and vice versa; the y direction is the width direction of the vehicle, wherein the direction indicated by the arrow is the "left", and vice versa; the z direction is the height direction of the vehicle, wherein the direction indicated by the arrow is the "upper", and vice versa.

[0030] As shown in FIGS. 1 and 2, the present embodiment provides a seat mounting bracket for mounting on a vehicle body floor, which comprises a first cross beam 1 and a first frame beam 2; the first cross beam 1 is arranged to extend along the width direction of the vehicle; the first frame beam 2 is in the shape of a U with the opening facing the first cross beam 1, and the two ends of the U are connected to the two ends of the first cross beam 1 in the length direction, so as to enclose a first annular structure 100 suitable for fixing a seat body, which can effectively improve the overall dynamic stiffness and meet the installation and load bearing requirements of the seat body, i.e. the part above the seat cushion; wherein the first cross beam 1 comprises a cross beam body 11 and at least two leg portions 12, the at least two leg portions 12 are arranged to extend downward from the lower end face of the cross beam body 11 along the height direction of the vehicle, and are distributed at intervals in the width direction of the vehicle, and a receiving cavity 13 suitable for mounting a seat lower component such as a leg rest assembly is formed at the intervals, so that the cross beam body 11 and the leg portions 12 can effectively realize the installation of the seat lower component such as the leg rest, and ensure the assembly precision and quality; moreover, the receiving cavities 13 formed between the adjacent leg portions 12 are open at the front side and the bottom side of the leg portions 12, which can realize the effective storage of the seat lower component such as the leg rest, and further improve the leg space utilization rate of the user and the comfort of the user's ride. Figure 1 and Figure 2 As shown in FIGS. 1 and 2, the present embodiment provides a seat mounting bracket for mounting on a vehicle body floor, which comprises a first cross beam 1 and a first frame beam 2; the first cross beam 1 is arranged to extend along the width direction of the vehicle; the first frame beam 2 is in the shape of a U with the opening facing the first cross beam 1, and the two ends of the U are connected to the two ends of the first cross beam 1 in the length direction, so as to enclose a first annular structure 100 suitable for fixing a seat body, which can effectively improve the overall dynamic stiffness and meet the installation and load bearing requirements of the seat body, i.e. the part above the seat cushion; wherein the first cross beam 1 comprises a cross beam body 11 and at least two leg portions 12, the at least two leg portions 12 are arranged to extend downward from the lower end face of the cross beam body 11 along the height direction of the vehicle, and are distributed at intervals in the width direction of the vehicle, and a receiving cavity 13 suitable for mounting a seat lower component such as a leg rest assembly is formed at the intervals, so that the cross beam body 11 and the leg portions 12 can effectively realize the installation of the seat lower component such as the leg rest, and ensure the assembly precision and quality; moreover, the receiving cavities 13 formed between the adjacent leg portions 12 are open at the front side and the bottom side of the leg portions 12, which can realize the effective storage of the seat lower component such as the leg rest, and further improve the leg space utilization rate of the user and the comfort of the user's ride.

[0031] Specifically, as shown in Figure 1 and Figure 2 , the first frame beam 2 includes a second cross beam 21 arranged to extend along the vehicle width direction, and a first longitudinal beam 22 and a second longitudinal beam 23 located at the length direction two ends of the second cross beam 21, the first longitudinal beam 22 and the second longitudinal beam 23 are respectively arranged to extend forward along the vehicle length direction, thereby forming a U-shaped first frame beam 2 with the opening facing forward, the front end of the first longitudinal beam 22 and the front end of the second longitudinal beam 23 are respectively connected to the length direction two ends of the first cross beam 1, i.e. enclosed into a first annular structure 100, to improve the overall dynamic stiffness and meet the installation and load bearing requirements of the seat body, i.e. the part above the seat cushion; after the first cross beam 1 is installed on the vehicle floor, the cross beam body 11 and the lower two side leg portions 12 and the vehicle floor form a containing cavity 13 suitable for installing seat lower components such as leg rest assemblies, and the cross beam body 11 and the leg portions 12 can effectively realize the installation and fixation of seat lower components such as leg rests, and at the same time, through the opening of the bottom surface and the front side of the containing cavity 13, the seat lower components such as leg rests can be effectively stored.

[0032] It can be understood that a plurality of first connection points 101 including seat cushions, carpets, seat belt buckles and wire harness clamping points can be arranged on the first cross beam 1 and the first frame beam 2, and connected and fixed by screwing, clamping, bonding and the like. At the same time, the number of first connection points 101 can be redundantly designed according to different seat layouts of different vehicle models, for example, based on the seat installation requirements of a five-seater vehicle, a redundant first connection point 101 is reserved to adapt to the seat installation of a six-seater vehicle, thereby realizing the generalization of the vehicle body of the five-seater vehicle and the six-seater vehicle. It can be set according to specific design requirements, which will not be described here.

[0033] It can also be understood that a plurality of first mounting points 102 can be arranged on the leg portions 12 and the second cross beam 21, and the first mounting points 102 are connected to the vehicle floor by bolt assemblies to realize fixation. Preferably, among the first connection points 101, a buckle connection point 1011 for connecting a seat belt buckle is arranged, the buckle connection point 1011 is connected adjacent to the first mounting point 102 at the second cross beam 21, which can improve the installation strength of the seat belt buckle; at the same time, an anti-rotation boss 1012 is arranged around the buckle connection point 1011, which can limit the buckle in the circumferential direction to avoid rotation of the buckle during tightening of the bolt.

[0034] In some embodiments, as Figure 1As shown, the leg part 12 is provided with three, including the first leg 121, the second leg 122 and the third leg 123 distributed in turn along the vehicle width direction, wherein the first leg 121 is located at the first end of the beam body 11 in the length direction, the second leg 122 is located at the middle of the beam body 11 in the length direction, and the third leg 123 is located at the second end of the beam body 11 in the length direction; the receiving cavity 13 includes the first chamber 131 formed between the first leg 121 and the second leg 122 and the second chamber 132 formed between the second leg 122 and the third leg 123; in this way, the first chamber 131 and the second chamber 132 can be uniformly arranged in the vehicle width direction, and the three leg parts 12 can also satisfy the effective support of the beam body 11, ensuring the carrying capacity of the first beam 1; at the same time, according to the corresponding installation point arrangement of the corresponding chamber to the beam body 11, the first leg 121, the second leg 122 and the third leg 123, one of the first chamber 131 and the second chamber 132 is suitable for installing the leg support assembly, and the other is suitable for installing the drawer assembly, thereby meeting the diversified needs of users. It can be understood that in other embodiments, the first chamber 131 and the second chamber 132 can also be suitable for installing the leg support assembly or suitable for installing the drawer assembly, which can be set according to specific design requirements, and will not be repeated here.

[0035] In some embodiments, as shown in Figure 1 As shown, the middle part of the second leg 122 is also provided with an opening downward notch 1221, which can be concave upward from the lower end surface of the middle part of the second leg 122 or partially hollowed out along the vehicle length direction of the middle part of the second leg 122, so that a third chamber 133 can be formed in the middle part of the second leg 122 to provide installation and accommodation space for the air duct assembly or the drawer assembly; at the same time, according to the corresponding installation point arrangement of the left and right side walls and the upper side wall of the third chamber 133 according to the specific design requirements, it can be suitable for installing the air duct assembly or the drawer assembly, and will not be repeated here.

[0036] In some embodiments, as shown in Figure 1 As shown, the end of the leg part 12 away from the beam body 11 is also provided with a connecting part 14, which is arranged along the vehicle width direction and connected between the adjacent two leg parts 12; in this way, the connecting part 14 can be used for force transmission at the lower end of the leg part 12, improving the structural strength of the leg part 12 and the filling uniformity in the die casting process, and can reduce the deformation of the part caused by the release of internal stress when it is demolded, ensuring the assembly precision and assembly quality.

[0037] It can be understood that the connecting portion 14 is preferably arranged in the cavity of the leg rest assembly mounting, which provides effective support for the mechanical movement of the leg rest assembly. Of course, the connecting portion 14 can also be arranged in the cavity of the drawer assembly or the air duct assembly, for example, the connecting portion 14 is arranged in the third cavity 133 to connect the left and right sides of the notch of the second supporting leg 122, so as to improve the structural stability of the second supporting leg 122. According to the specific design requirements, it can be arranged, which will not be repeated here.

[0038] In some embodiments, as shown in Figure 1 , the first cross beam 1 further comprises at least one protruding portion 15, which is arranged upwardly protruding from the upper end of the cross beam body 11 in the vehicle height direction. Through the arrangement of the protruding portion 15, on the one hand, it can provide front end support for the seat cushion, avoiding the front sliding of the seat cushion; on the other hand, it can improve the structural strength of the first cross beam 1, and improve the support strength and carrying capacity of the seat mounting bracket.

[0039] It can be understood that the protruding portion 15 described above can be arranged upwardly protruding from the upper end of the cross beam body 11, or as shown in Figure 1 , the cross beam body 11 is formed with the protruding portion 15 by upwardly protruding at a predetermined position, which is preferably corresponding to the position of the accommodating cavity 13. In this way, not only can the functions of the front end support of the protruding portion 15 and the improvement of the carrying capacity be met, but also more use space can be provided for the accommodating cavity 13 below, which is convenient for the disassembly and use of the related components in the accommodating cavity 13.

[0040] In some embodiments, as shown in Figure 1 and Figure 2 , the first cross beam 1 including the cross beam body 11, the supporting leg portion 12, the connecting portion 14 and the protruding portion 15, and the first frame beam 2 including the second cross beam 21, the first longitudinal beam 22 and the second longitudinal beam 23, can be integrally formed by magnesium alloy or aluminum alloy die casting process, the die casting gate can be arranged between the cross beam body 11 and the second cross beam 21, and the gate connection can be arranged between the first cross beam 1 and the first frame beam 2. In this way, the integrally die-cast first annular structure 100 can effectively reduce the generation of defects such as pores and shrinkage holes by melting and casting in a high-pressure closed environment, thereby improving the density and strength of the first annular structure 100. In this way, the purpose of reducing the number of parts, improving the assembly precision and assembly efficiency can be achieved on the premise of meeting the performance requirements of the first annular structure 100, thereby reducing the production cost, shortening the development cycle, and being beneficial to the lightweight of the vehicle body. At the same time, the surface and side surface of the integrally die-cast part can also be provided with grid ribs and vertical ribs to improve the appearance defects of the part such as shrinkage, die drawing, cracking, cold separation and the like, improve the part qualification rate, and reduce the defect rate.

[0041] In some embodiments, as shown in Figure 1 andFigure 2 As shown, the seat mounting bracket further comprises a second frame beam 3, which also has an open forward U shape, and the two ends of the U shape are connected to the two ends of the length direction of the first frame beam 2 respectively to enclose a second ring structure 200 suitable for fixing the seat back. Through the arrangement of the second frame beam 3, the overall dynamic stiffness can be further improved, and the installation and load bearing requirements of the seat back part can be met.

[0042] Specifically, as shown in Figure 1 and Figure 2 , the second frame beam 3 comprises a third cross beam 31 extending along the vehicle width direction, and a third longitudinal beam 32 and a fourth longitudinal beam 33 located at the two ends of the length direction of the third cross beam 31, the one end of the third longitudinal beam 32 and the fourth longitudinal beam 33 away from the third cross beam 31 is arranged to extend forward along the vehicle length direction, thereby forming an open forward U-shaped second frame beam 3, and the one end of the third longitudinal beam 32 and the fourth longitudinal beam 33 away from the third cross beam 31 is connected to the two ends of the length direction of the second cross beam 21, that is, it is enclosed into a second ring structure 200, at this time, the third longitudinal beam 32 and the fourth longitudinal beam 33 correspond to the first longitudinal beam 22 and the second longitudinal beam 23 of the first frame beam 2 respectively, not only can effectively improve the overall dynamic stiffness of the bracket, meet the installation and load bearing requirements of the seat back part, but also can play a good supporting role when the vehicle is in collision.

[0043] It can be understood that a plurality of second connection points 201 for connecting the second connecting points 201 including the seat back bracket and the like can be arranged on the second ring structure 200, that is, the second cross beam 21 and the second frame beam 3, and connected and fixed by screwing and the like. A plurality of second mounting points 202 can be arranged on the third cross beam 31, and the bolt assembly is arranged through the second mounting point 202 and the vehicle body floor to form a bolt connection to realize fixation, cooperating with the plurality of first mounting points 102 arranged on the second cross beam 21, the bracket can be firmly and stably fixed on the vehicle body floor.

[0044] In some embodiments, as shown in Figure 1 and Figure 2 , the second ring structure 200 further comprises at least one connecting beam 203, which extends along the vehicle length direction and is connected between the second frame beam 3 and the first frame beam 2. Through the arrangement of the connecting beam 203, the force can be transmitted in the middle of the second ring structure 200, the structural strength of the second ring structure 200 is improved, and the structural stability of the second ring structure 200 is improved, which can play a good supporting role in collision or row collision experiment.

[0045] In some embodiments, as shown in Figure 1 and Figure 2As shown, the first frame beam 2, the connecting beam 203 and the second frame beam 3 including the third cross beam 31, the third longitudinal beam 32 and the fourth longitudinal beam 33 can be integrally formed by magnesium alloy or aluminum alloy integrated die casting process, the integrally die-cast second ring structure 200 can effectively reduce the generation of defects such as pores and shrinkage holes by melting and casting in a high-pressure closed environment, and improve the density and strength of the second ring structure 200, so that the purpose of reducing the number of parts, improving assembly precision and assembly efficiency can be achieved under the premise of meeting the performance requirements of the second ring structure 200, thereby reducing production cost, shortening development cycle, and being beneficial to vehicle lightweight. At the same time, the surface and side surface of the integrally die-cast part can also be provided with grid ribs and vertical ribs to improve the appearance defects of the part such as shrinkage, die drawing, cracking, cold separation and the like, improve the part qualification rate, and reduce the defect rate.

[0046] Further, as shown in Figure 1 and Figure 2 The connecting beam 203 is provided with two, and the two connecting beams 203 are symmetrically distributed in the vehicle width direction and arranged close to the first mounting point 102 of the second cross beam 21, so that on the one hand the above-mentioned effect of improving the structural stability and support strength can be achieved, and on the other hand, during die casting, since the gate is arranged in the first ring structure 100, the third cross beam 31 of the second frame beam 3 is located at the distal end, and the thickness of the seat backrest support mounting point, i.e. the second connecting point 201, is relatively thick. At this time, the connecting beam 203 can play the role of a flow channel to guide the flow direction of the molten liquid during the die casting process, improve the filling uniformity of the thick part and the distal end structure, and ensure the structural strength and rigidity performance.

[0047] In addition, in another embodiment, a vehicle including the seat mounting bracket in the above-mentioned embodiments is provided. For other structures and working principles of the seat mounting bracket, please refer to the above-mentioned embodiment description of the system. Since the seat mounting bracket has the above-mentioned technical effects, the vehicle with the seat mounting bracket should also have corresponding technical effects, which will not be described here.

[0048] It can be understood that in the present application, unless otherwise specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0049] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or a quantity of the indicated technical features. Thus, a feature defined with "first", "second" can include one or more of the features implicitly or explicitly. The meaning of "a plurality" is two or more, unless otherwise expressly specified. And the description of "some embodiments", "exemplary", etc. means that the particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the present application.

[0050] The illustrative representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics being described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the skilled person can combine and combine features of different embodiments or examples and features of different embodiments or examples described in the present specification, without contradiction.

[0051] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary, and should not be construed as limiting the present application, and those skilled in the art can modify, replace and change the above embodiments within the scope of the present application, therefore, any changes or modifications made according to the claims and specification of the present application shall be within the scope of the present application.

Claims

1. A seat mounting bracket for mounting on a vehicle body floor, characterised in that, The seat mounting support comprises: a first cross beam extending along a vehicle width direction; a first frame beam in a U shape, and two ends of the U shape of the first frame beam being connected to two ends of the first cross beam in a length direction, so as to form a first ring structure; wherein the first cross beam comprises a cross beam body and at least two leg portions, the at least two leg portions extending downward from a lower end surface of the cross beam body along a vehicle height direction and being distributed in the vehicle width direction, and cavities suitable for mounting lower components of seats are formed at intervals. The leg portions are provided with three first, second and third leg portions distributed in the vehicle width direction; the cavities comprise a first cavity formed between the first and second leg portions and a second cavity formed between the second and third leg portions.

2. The seat mounting bracket of claim 1, wherein A third cavity suitable for mounting a duct assembly or a drawer assembly is arranged in the second leg portion, and a downwardly open notch is formed in a middle portion of the second leg portion, and the notch is in communication with the third cavity.

3. The seat mounting bracket of claim 2, wherein A connecting portion extending along the vehicle width direction is further arranged between the adjacent two leg portions.

4. The seat mounting bracket of claim 1, wherein The first cross beam further comprises at least one protruding portion protruding upward from an upper end of the cross beam body along the vehicle height direction.

5. The seat mounting bracket of claim 1, wherein The first cross beam and the first frame beam are integrally formed.

6. The seat mounting bracket of claim 1, wherein A second frame beam in a U shape is further arranged, and two ends of the U shape of the second frame beam are connected to two ends of the first frame beam in the length direction, so as to form a second ring structure; the first frame beam is located between the first cross beam and the second frame beam.

7. The seat mounting bracket of any of claims 1-6, wherein, The second ring structure further comprises at least one connecting beam extending along a vehicle length direction and connected between the second frame beam and the first frame beam.

8. The seat mounting bracket of claim 7, wherein, The first frame beam, the second frame beam and the connecting beam are integrally formed.

9. The seat mounting bracket of claim 8, wherein, The seat mounting support comprises the seat mounting support according to any one of claims 1-9.

10. A vehicle characterized by comprising: ​

Images