A leg rest mounting structure and an automobile

Abstract

The present invention relates to the technical field of automobile bodies, and particularly relates to a leg rest mounting structure and an automobile. The leg rest mounting structure includes a rear floor, a front reinforcement beam of the rear floor, a front cross beam of the rear floor, and a leg rest mounting member; the upper surface of one end of the rear floor overlaps with the front reinforcement beam of the rear floor, the lower surface of one end of the rear floor overlaps with the front cross beam of the rear floor, and the front reinforcement beam of the rear floor and the front cross beam of the rear floor are connected; the leg rest mounting member is connected to the front reinforcement beam of the rear floor, and the leg rest mounting member is used for mounting a leg rest mechanism. The leg rest mounting structure has the advantages of simple structure and fewer components, which can reduce the cost of part molds and welding costs, thereby reducing the cost of the leg rest mounting structure.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive bodies, and more particularly to a leg rest mounting structure and an automobile. Background Art

[0002] An automobile is powered and mainly used for carrying passengers and / or goods, etc. Automobiles are widely used, and with the consumption upgrade of automobiles, consumers pay more attention to the comfort of automobiles, and more consumers like vehicles with leg rest functions. Because leg rests can be used to increase the support area of passengers' legs, are soft and elastically comfortable, and can improve the riding comfort.

[0003] The leg rest mounting structure in the prior art has the disadvantages of complex structure, too many parts, increased part mold cost and welding cost, resulting in a high cost of the leg rest mounting structure. For example, the leg rest support assembly includes a rear floor, a leg rest support plate, a leg rest mounting plate, a first rear floor patch panel, a second rear floor patch panel, a side plug plate of the leg rest support plate, and a front plug plate of the leg rest support plate; the rear floor is hollowed out at the leg rest layout position; the leg rest support plate is installed at the hollowed out position of the rear floor, and the leg rest support plate is fixedly connected to the rear floor; the leg rest mounting plate is connected to the leg rest support plate, and the leg rest mounting plate is used to connect to the leg rest frame; the first rear floor patch panel is located below the leg rest support plate, the second rear floor patch panel and the side plug plate of the leg rest support plate are respectively located on the left and right sides of the leg rest support plate, and the front plug plate of the leg rest support plate is located in front of the leg rest support plate; the leg rest support plate, the first rear floor patch panel, the second rear floor patch panel, the side plug plate of the leg rest support plate, and the front plug plate of the leg rest support plate form a closed cavity. Summary of the Invention

[0004] One of the objectives of the present invention is to provide a leg rest mounting structure to solve the problems of the leg rest mounting structure in the prior art having a complex structure, too many parts, increased part mold cost and welding cost, resulting in a high cost of the leg rest mounting structure; the second objective is to provide an automobile.

[0005] In order to achieve the above objectives, the technical solutions adopted by the present invention are as follows:

[0006] A leg rest mounting structure includes a rear floor, a front rear floor reinforcing beam, a front rear floor cross beam, and a leg rest mounting member; the upper surface of one end of the rear floor overlaps with the front rear floor reinforcing beam, the lower surface of one end of the rear floor overlaps with the front rear floor cross beam, and the front rear floor reinforcing beam and the front rear floor cross beam are connected; the leg rest mounting member is connected to the front rear floor reinforcing beam, and the leg rest mounting member is used for mounting a leg rest mechanism.

[0007] According to the above technical means, the leg rest mounting structure has the advantages of simple structure and fewer components, which can reduce the cost of part molds and welding, thereby reducing the cost of the leg rest mounting structure.

[0008] Furthermore, the front reinforcing beam of the rear floor and the front cross beam of the rear floor are snap-connected, and an installation cavity is formed between the front reinforcing beam of the rear floor and the front cross beam of the rear floor.

[0009] According to the above technical means, when the leg rest mounting structure is installed in a vehicle, this installation cavity can ensure that the whole vehicle has sufficient bending and torsional stiffness and strength to transmit the lateral force of the vehicle body.

[0010] Furthermore, the leg rest mounting member is arranged in the installation cavity, the leg rest mounting member is connected to the surface of the front reinforcing beam of the rear floor facing the front cross beam of the rear floor, and the front reinforcing beam of the rear floor is provided with an avoidance opening for connecting the leg rest mounting member and the leg rest mechanism.

[0011] According to the above technical means, the leg rest mounting member is connected to the cavity wall of the installation cavity, which can meet the strength and stiffness requirements for the installation of the leg rest mechanism.

[0012] Furthermore, the leg rest mounting member is a nut plate.

[0013] According to the above technical means, when the nut plate is connected to fasteners such as bolts, it has strong connection strength, thereby ensuring the connection strength of the leg rest mechanism and the safety performance of the vehicle.

[0014] Furthermore, the overlapping position of the upper surface of one end of the rear floor and the front reinforcing beam of the rear floor is arranged along the left-right direction of the leg rest mounting structure.

[0015] According to the above technical means, when the leg rest mounting structure is installed in different vehicle models, only the front reinforcing beam of the rear floor needs to be differentially designed, such as increasing or decreasing the length, width, height, etc. of the front reinforcing beam of the rear floor, which can reduce the design cost of the leg rest mounting structure and increase the versatility of the leg rest mounting structure.

[0016] Furthermore, the leg rest mounting structure further includes a seat support member, the seat support member is connected to the surface of the front reinforcing beam of the rear floor facing away from the front cross beam of the rear floor, and the seat support member is used to support the seat.

[0017] According to the above technical means, the seat support member can support the seat.

[0018] Furthermore, make a cross-section perpendicular to the left-right direction of the leg rest mounting structure, the cross-section of the seat support member is in a U-shaped structure, both ends of the U-shaped structure are connected to the front reinforcing beam of the rear floor, and the middle of the U-shaped structure protrudes in a direction away from the front reinforcing beam of the rear floor.

[0019] According to the above technical means, the middle part of the U-shaped structure protruding away from the front reinforcement beam of the rear floor can increase the height of the seat support member. When the seat support member supports the seat, the thickness of the seat can be reduced, the volume of the seat filling foam can be reduced, and thus the cost of the seat can be reduced.

[0020] Furthermore, the seat support member is connected to the cavity wall of the installation cavity; in the left-right direction of the leg rest installation structure, on one side of the seat support member corresponding to the installation cavity, the leg rest mounting member corresponds to the opposite side of the installation cavity.

[0021] According to the above technical means, when the leg rest mounting member is arranged in the installation cavity, if the vehicle model does not configure a leg rest mechanism, a seat support member can be arranged at the position where the leg rest mechanism is to be arranged on the upper surface of the front reinforcement beam of the rear floor to support the seat, the thickness of the seat can be reduced, the volume of the seat filling foam can be reduced, and thus the cost of the seat can be reduced. Other components such as the rear floor, the front reinforcement beam of the rear floor, and the front cross beam of the rear floor can be directly shared, reducing the design cost and improving the versatility of the leg rest installation structure.

[0022] Furthermore, the leg rest installation structure further includes a battery mounting bracket, and the battery mounting bracket is located on the lower surface of the leg rest installation structure, and the battery mounting bracket is connected to the front cross beam of the rear floor and the front reinforcement beam of the rear floor.

[0023] According to the above technical means, the leg rest installation structure including the battery mounting bracket enables the leg rest installation structure to be applicable to electric vehicles, and the leg rest installation structure has the advantage of strong versatility.

[0024] Furthermore, the leg rest installation structure further includes a fuel tank mounting bracket, and the fuel tank mounting bracket is located on the lower surface of the leg rest installation structure, and the fuel tank mounting bracket is connected to the front cross beam of the rear floor.

[0025] According to the above technical means, the setting of the fuel tank mounting bracket enables the leg rest installation structure to be applicable to fuel vehicles, and the leg rest installation structure has the advantage of strong versatility.

[0026] Furthermore, the fuel tank mounting bracket is located at the cavity wall of the installation cavity. The fuel tank mounting bracket is connected to the lower cavity wall of the installation cavity, and the leg rest mounting member is connected to the upper cavity wall of the installation cavity. There is a certain space between the fuel tank mounting bracket and the leg rest mounting member, which can avoid interference when the fuel tank mounting bracket installs the fuel tank and when the leg rest mounting member installs the leg rest mechanism, and can simultaneously realize the layout of the fuel tank installation position and the leg rest installation position.

[0027] A vehicle includes a vehicle body, and the vehicle body is provided with the above-mentioned leg rest installation structure.

[0028] Advantages of the present invention:

[0029] (1) The leg rest mounting structure of the present invention includes a rear floor, a front reinforcement beam of the rear floor, a front cross beam of the rear floor, and a leg rest mounting member; the upper surface of one end of the rear floor is lapped with the front reinforcement beam of the rear floor, the lower surface of one end of the rear floor is lapped with the front cross beam of the rear floor, and the front reinforcement beam of the rear floor and the front cross beam of the rear floor are connected; the leg rest mounting member is connected with the front reinforcement beam of the rear floor. The leg rest mounting structure has the advantages of simple structure and fewer components, which can reduce the cost of part molds and welding, thereby reducing the cost of the leg rest mounting structure.

[0030] (2) The leg rest mounting member of the present invention is connected to the inner wall of the upper cavity wall of the mounting cavity, and the leg rest mounting member is arranged close to the rear of the vehicle. The floor surface of the vehicle can be set lower, which can meet the layout requirements of the leg rest mechanism in the height space and avoid compressing the leg space of passengers, so that the riding comfort of passengers is good. The seat support member is connected to the outer wall of the upper cavity wall of the mounting cavity, and the leg rest mounting member and the seat support member are respectively located on the left and right sides of the upper cavity wall of the mounting cavity. The seat support member can support the seat, reduce the thickness of the seat, reduce the volume of the seat filling foam, and further reduce the cost of the seat.

[0031] (3) The left and right sides of the upper cavity wall of the mounting cavity of the present invention are at the same height, which reduces the stamping forming difficulty of the front reinforcement beam of the rear floor and reduces the part segmentation. And when the vehicle is not equipped with a leg rest mechanism, a seat support member can be welded at the position of the leg rest mechanism. Therefore, the leg rest mounting structure is applicable to both vehicle models equipped with a leg rest mechanism and vehicle models not equipped with a leg rest mechanism, and has no complex segmentation structure and does not require more adjustments, so the universality of the leg rest mounting structure is strong.

[0032] (4) The setting of the battery mounting bracket and the fuel tank mounting bracket in the leg rest mounting structure of the present invention makes the leg rest mounting structure applicable to pure electric vehicles, pure fuel vehicles, and hybrid vehicles. Description of the Drawings

[0033] Figure 1 is a schematic structural diagram of a three-dimensional view of the leg rest mounting structure described in the present invention;

[0034] Figure 2 is a schematic structural diagram of a top view of the leg rest mounting structure described in the present invention;

[0035] Figure 3 is a schematic structural diagram of a bottom view of the leg rest mounting structure described in the present invention;

[0036] Figure 4 is a schematic structural diagram of an exploded view of the leg rest mounting structure described in the present invention;

[0037] Figure 5 is Figure 1Schematic diagram of the structure of the A-A section;

[0038] Figure 6 Schematic diagram of the top view of the partial displacement of the leg rest mounting structure according to the present invention;

[0039] Figure 7 Schematic diagram of the bottom view of the partial displacement of the leg rest mounting structure according to the present invention;

[0040] Figure 8 is Figure 1 Schematic diagram of the rear view of the leg rest mounting structure described in

[0041] Wherein, 1 - rear floor; 2 - front reinforcement beam of the rear floor; 3 - front cross beam of the rear floor; 4 - leg rest mounting member; 41 - first nut hole; 42 - second nut hole; 5 - mounting cavity; 6 - seat support member; 7 - battery mounting bracket; 8 - fuel tank mounting bracket. Detailed implementation manners

[0042] The following will describe the implementation manners of the present invention with reference to the drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the protection scope of the present invention.

[0043] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0044] Refer to Figure 1 , which shows a schematic diagram of the three-dimensional view of the leg rest mounting structure in the embodiment of the present application. The leg rest mounting structure is suitable for being installed in an automobile. Further refer to Figure 4 shown, the leg rest mounting structure includes a rear floor 1, a front reinforcement beam 2 of the rear floor, a front cross beam 3 of the rear floor, and a leg rest mounting member 4; the upper surface of one end of the rear floor 1 overlaps with the front reinforcement beam 2 of the rear floor, the lower surface of one end of the rear floor 1 overlaps with the front cross beam 3 of the rear floor, and the front reinforcement beam 2 of the rear floor and the front cross beam 3 of the rear floor are connected; the leg rest mounting member 4 is connected to the front reinforcement beam 2 of the rear floor, and the leg rest mounting member 4 is used for mounting the leg rest mechanism.

[0045] Specifically, when the upper surface of one end of the rear floor 1 is the leg rest mounting structure installed on the vehicle, it is the upward-facing surface in one end of the rear floor 1; similarly, when the lower surface of one end of the rear floor 1 is the leg rest mounting structure installed on the vehicle, it is the downward-facing surface in one end of the rear floor 1.

[0046] Among them, the embodiments of the present application do not specifically limit the leg rest mechanism, as long as it meets the demand for supporting the legs of passengers and improves the riding comfort.

[0047] The upper surface of one end of the rear floor 1 overlaps with the front rear floor reinforcement beam 2. Specifically, it means that the upper surface of one end of the rear floor 1 partially overlaps with the lower surface of one end of the front rear floor reinforcement beam 2 for connection. The lower surface of one end of the rear floor 1 overlaps with the front rear floor cross beam 3. Specifically, it means that the lower surface of one end of the rear floor 1 partially overlaps with the upper surface of one end of the front rear floor cross beam 3 for connection.

[0048] The leg rest mounting structure of the embodiments of the present application includes a rear floor 1, a front rear floor reinforcement beam 2, a front rear floor cross beam 3, and a leg rest mounting member 4; the upper surface of one end of the rear floor 1 overlaps with the front rear floor reinforcement beam 2, the lower surface of one end of the rear floor 1 overlaps with the front rear floor cross beam 3, the front rear floor reinforcement beam 2 and the front rear floor cross beam 3 are connected; the leg rest mounting member 4 is connected to the front rear floor reinforcement beam 2. The leg rest mounting structure has the advantages of simple structure and fewer components, which can reduce the cost of part molds and welding, thereby reducing the cost of the leg rest mounting structure.

[0049] Optionally, referring to Figure 1 As shown, when the leg rest mounting structure is installed on the vehicle, one end of the rear floor 1 is the front end of the rear floor 1. Therefore, when the leg rest mounting structure is provided in the vehicle, the upper surface of the front end of the rear floor 1 overlaps with the rear end of the front rear floor reinforcement beam 2, the lower surface of the front end of the rear floor 1 overlaps with the rear end of the front rear floor cross beam 3, and the front end of the rear floor 1 is provided between the front rear floor reinforcement beam 2 and the front rear floor cross beam 3.

[0050] In this embodiment, referring to Figure 2 and Figure 5 As shown, the front rear floor reinforcement beam 2 and the front rear floor cross beam 3 are snap-connected, and an installation cavity 5 is formed between the front rear floor reinforcement beam 2 and the front rear floor cross beam 3. When the leg rest mounting structure is provided in the vehicle, this installation cavity 5 can ensure that the whole vehicle has sufficient bending and torsion stiffness and strength to transmit the lateral force of the vehicle body.

[0051] In this embodiment, the leg rest mounting member 4 is provided in the installation cavity 5. Further referring to Figure 7As shown, the leg rest mounting member 4 is connected to the surface of the front reinforcement beam 2 of the rear floor facing the front cross beam 3 of the rear floor. The front reinforcement beam 2 of the rear floor is provided with an avoidance opening for connecting the leg rest mounting member 4 to the leg rest mechanism. In the above structure, the leg rest mounting member 4 is connected to the wall of the mounting cavity 5, which can meet the strength and stiffness requirements for the installation of the leg rest mechanism.

[0052] Furthermore, there is a preset height between the leg rest mounting member 4 and the front cross beam 3 of the rear floor. The leg rest mounting member 4 is not arranged at the lower position in the leg rest mounting structure. The lower position in the leg rest mounting structure is the floor surface when the leg rest mounting structure is installed in the vehicle. Compared with the prior art where the leg rest mounting member is set on the floor surface, it is necessary to thicken the longitudinal thickness of the carpet at other positions of the same row of seats except the leg rest mechanism to make the interior of the vehicle more beautiful. The thickening amount of the longitudinal thickness of the carpet is about the longitudinal thickness of the leg rest mechanism. This thickness is generally filled with carpet foaming material, which is relatively expensive, increasing the cost of the whole vehicle. Moreover, since the leg rest mechanism and the thickened carpet occupy the longitudinal space, the leg space of the passengers in this row of seats is greatly compressed, reducing the riding comfort. In the present application, the leg rest mounting member 4 is connected to the upper cavity wall of the mounting cavity 5, avoiding the operation of thickening the longitudinal thickness of the carpet at other positions of the same row of seats except the leg rest mechanism to maintain aesthetics, which can reduce the vehicle cost; increase the leg space of the rear passengers and improve the riding comfort. Among them, the preset height is set according to the use requirements, and the embodiments of the present application do not make specific limitations on this.

[0053] Moreover, some vehicle models are equipped with a leg rest mechanism, while some vehicle models are not. The leg rest mounting member 4 is arranged in the mounting cavity 5, and the leg rest mounting member 4 is connected to the surface of the front reinforcement beam 2 of the rear floor facing the front cross beam 3 of the rear floor. The leg rest mounting member 4 does not affect the structural setting of the upper surface of the front reinforcement beam 2 of the rear floor. The upper surface of the front reinforcement beam 2 of the rear floor can be provided with a leg rest mechanism or a seat according to the use requirements. The leg rest mounting structure is applicable to both vehicle models equipped with a leg rest mechanism and those not equipped with a leg rest mechanism, and does not require more adjustments, with strong versatility of the leg rest mounting structure.

[0054] In this embodiment, the leg rest mounting member 4 is a nut plate. Specifically, the nut plate includes a bottom plate, and threaded holes are provided on the bottom plate. When the leg rest mounting member 4 is connected to the leg rest mechanism, fasteners such as bolts pass through the through holes on the leg rest mechanism and the avoidance opening on the front reinforcement beam 2 of the rear floor and then are connected to the threaded holes to fixedly connect the leg rest mechanism to the nut plate. Among them, the avoidance opening can be a through hole structure.

[0055] Furthermore, when the nut plate is connected to fasteners such as bolts, it has strong connection strength, thereby ensuring the connection strength of the leg rest mechanism and the safety performance of the vehicle.

[0056] In this embodiment, the overlapping position of the upper surface of one end of the rear floor 1 and the front rear floor reinforcement beam 2 is arranged in the left-right direction of the leg rest mounting structure. Among them, the left-right direction of the leg rest mounting structure is the left-right direction of the vehicle when the leg rest mounting structure is installed in the vehicle, that is, Figure 2 the left-right direction in []. At this time, when the leg rest mounting structure is installed in different vehicle models of the vehicle, only the front rear floor reinforcement beam 2 needs to be designed differently, such as increasing or decreasing the length, width, height, etc. of the front rear floor reinforcement beam 2, which can reduce the design cost of the leg rest mounting structure and increase the versatility of the leg rest mounting structure.

[0057] In this embodiment, referring to Figure 4 and Figure 6 as shown, the leg rest mounting structure further includes a seat support member 6. The seat support member 6 is connected to the surface of the front rear floor reinforcement beam 2 facing away from the front rear floor cross beam 3. The seat support member 6 is used to support the seat. In the embodiment of the present application, both the seat support member 6 and the leg rest mounting member 4 are connected to the front rear floor reinforcement beam 2, and the seat support member 6 is connected to the surface of the front rear floor reinforcement beam 2 facing away from the front rear floor cross beam 3, and the leg rest mounting member 4 is connected to the surface of the front rear floor reinforcement beam 2 facing the front rear floor cross beam 3.

[0058] In this embodiment, referring to Figure 8 as shown, a cross-section is made perpendicular to the left-right direction of the leg rest mounting structure. The cross-section of the seat support member 6 is in a U-shaped structure. Both ends of the U-shaped structure are connected to the front rear floor reinforcement beam 2, and the middle part of the U-shaped structure protrudes in a direction away from the front rear floor reinforcement beam 2. With the above structure of the seat support member 6, the middle part of the U-shaped structure protruding in a direction away from the front rear floor reinforcement beam 2 can increase the height of the seat support member 6. When the seat support member 6 supports the seat, the thickness of the seat can be reduced, the volume of the seat filling foam can be reduced, and thus the cost of the seat can be reduced.

[0059] In this embodiment, in the left-right direction of the leg rest mounting structure, the height of the front rear floor reinforcement beam 2 at the installation cavity 5 is the same, which reduces the difficulty of stamping and forming the front rear floor reinforcement beam 2, and also reduces the part segmentation and the number of parts.

[0060] In this embodiment, the seat support member 6 is connected to the wall of the installation cavity 5; in the left-right direction of the leg rest installation structure, on one side of the installation cavity 5 corresponding to the seat support member 6, the leg rest mounting member 4 is located on the opposite side corresponding to the installation cavity 5. In the above structure, when the leg rest mounting member 4 is arranged in the installation cavity 5, if the vehicle model does not configure a leg rest mechanism, the seat support member 6 can be arranged at the position where the leg rest mechanism is provided on the upper surface of the front reinforcement beam 2 of the rear floor, which can reduce the thickness of the seat, reduce the volume of the seat filling foam, and thus reduce the cost of the seat. Other components such as the rear floor 1, the front reinforcement beam 2 of the rear floor, and the front cross beam 3 of the rear floor can be directly shared, reducing the design cost and improving the versatility of the leg rest installation structure.

[0061] In this embodiment, with reference to Figure 2 、 Figure 3 and Figure 4 as shown, the leg rest installation structure further includes a battery mounting bracket 7. The battery mounting bracket 7 is located on the lower surface of the leg rest installation structure. The battery mounting bracket 7 is connected to the front cross beam 3 and the front reinforcement beam 2 of the rear floor, and the battery mounting bracket 7 is used to fix the battery. Among them, the lower surface of the leg rest installation structure refers to the surface facing downward of the leg rest installation structure when it is arranged in the vehicle. The leg rest installation structure includes the battery mounting bracket 7, which makes the leg rest installation structure suitable for use in electric vehicles, and the leg rest installation structure has the advantage of strong versatility.

[0062] Further with reference to Figure 2 and Figure 3 as shown, when the leg rest installation structure is arranged in the vehicle, the battery mounting bracket 7 is located at the front end of the leg rest installation structure.

[0063] In this embodiment, there are two battery mounting brackets 7, which are respectively located on the left and right sides of the leg rest installation structure. It can be understood that the specific number of the battery mounting brackets 7 in the embodiment of the present application is not specifically limited, as long as the use requirements are met. For example, there are three battery mounting brackets 7.

[0064] In this embodiment, with reference to Figure 3 and Figure 4 as shown, the leg rest installation structure further includes a fuel tank mounting bracket 8. The fuel tank mounting bracket 8 is located on the lower surface of the leg rest installation structure. The fuel tank mounting bracket 8 is connected to the front cross beam 3 of the rear floor, and the fuel tank mounting bracket 8 is used to fix the fuel tank. The setting of the fuel tank mounting bracket 8 makes the leg rest installation structure suitable for use in fuel vehicles, and the leg rest installation structure has the advantage of strong versatility.

[0065] In this embodiment, the fuel tank mounting bracket 8 is located at the cavity wall of the mounting cavity 5. At this time, the fuel tank mounting bracket 8 is connected to the lower cavity wall of the mounting cavity 5, and the leg rest mounting member 4 is connected to the upper cavity wall of the mounting cavity 5. There is a certain space between the fuel tank mounting bracket 8 and the leg rest mounting member 4, which can avoid interference when the fuel tank mounting bracket 8 mounts the fuel tank and when the leg rest mounting member 4 mounts the leg rest mechanism. For example, referring to Figure 5 As shown, when the leg rest mounting member 4 is a nut plate, the nut plate is provided with a first nut hole 41 and a second nut hole 42. The relative positions of the fuel tank mounting bracket 8 and the nut plate can avoid interference between the bolts and other fasteners and the fuel tank mounting bracket 8 when assembling bolts and other fasteners into the first nut hole 41 and the second nut hole 42. Therefore, connecting the fuel tank mounting bracket 8 to the lower cavity wall of the mounting cavity 5 and connecting the leg rest mounting member 4 to the upper cavity wall of the mounting cavity 5 can simultaneously realize the layout of the fuel tank mounting position and the leg rest mounting position.

[0066] Furthermore, the front rear floor reinforcing beam 2 and the front rear floor cross beam 3 are snap-connected, and the structure of the mounting cavity 5 is formed between the front rear floor reinforcing beam 2 and the front rear floor cross beam 3, meeting the installation space requirements and installation stiffness requirements for the leg rest mechanism, fuel tank, and battery, and providing a solution when there are conflicts in arranging the leg rest mechanism, fuel tank, and battery simultaneously. Therefore, the leg rest mounting structure of the embodiment of the present application is suitable for use in a hybrid vehicle.

[0067] In this embodiment, the connection methods among the rear floor 1, the front rear floor reinforcing beam 2, the front rear floor cross beam 3, the leg rest mounting member 4, the seat support member 6, the battery mounting bracket 7, and the fuel tank mounting bracket 8 can be determined according to the usage requirements, and the embodiment of the present application does not make specific limitations thereto. For example, one end of the rear floor 1 overlaps with the front rear floor reinforcing beam 2 and the front rear floor cross beam 3 and is connected together by welding. For example, the front rear floor reinforcing beam 2 and the leg rest mounting member 4 overlap and are connected together by welding. For example, the seat support member 6 is welded to the front rear floor reinforcing beam 2 to form a stable connection structure. For example, the battery mounting bracket 7 is welded to the front rear floor reinforcing beam 2 and the front rear floor cross beam 3. For example, the fuel tank mounting bracket 8 is welded to the front rear floor cross beam 3 to form a stable structure, meeting the strength and stiffness requirements for fuel tank installation.

[0068] In this embodiment, when the leg rest mounting structure is provided in a vehicle, in the left-right direction of the leg rest mounting structure, the lengths of the front rear floor reinforcing beam 2 and the front rear floor cross beam 3 are relatively uniform; in the front-rear direction of the leg rest mounting structure, the widths of the front rear floor reinforcing beam 2 and the front rear floor cross beam 3 are relatively uniform; and no notches or cutouts are provided at the front end of the rear floor 1; therefore, the processing of the rear floor 1, the front rear floor reinforcing beam 2, and the front rear floor cross beam 3, as well as the overlapping between the rear floor 1, the front rear floor reinforcing beam 2, and the front rear floor cross beam 3, are relatively simple.

[0069] The leg rest mounting structure of the embodiment of the present application includes a rear floor 1, a front rear floor reinforcing beam 2, a front rear floor cross beam 3, and a leg rest mounting member 4; the upper surface of one end of the rear floor 1 is lapped with the front rear floor reinforcing beam 2, the lower surface of one end of the rear floor 1 is lapped with the front rear floor cross beam 3, and the front rear floor reinforcing beam 2 and the front rear floor cross beam 3 are connected; the leg rest mounting member 4 is connected to the front rear floor reinforcing beam 2. The leg rest mounting structure has the advantages of simple structure and fewer components, which can reduce the part mold cost and welding cost, thereby reducing the cost of the leg rest mounting structure.

[0070] Moreover, the leg rest mounting member 4 is connected to the inner wall of the upper cavity wall of the mounting cavity 5, and the leg rest mounting member 4 is arranged close to the rear of the vehicle. The floor surface of the vehicle can be set lower, which can meet the layout requirements of the leg rest mechanism in the height space and avoid compressing the leg space of the passengers, so the riding comfort of the passengers is good. The seat support member 6 is connected to the outer wall of the upper cavity wall of the mounting cavity 5, and the leg rest mounting member 4 and the seat support member 6 are respectively located on the left and right sides of the upper cavity wall of the mounting cavity 5. The seat support member 6 can support the seat, reduce the thickness of the seat, reduce the volume of the seat filling foam, and further reduce the cost of the seat.

[0071] The left and right sides of the upper cavity wall of the mounting cavity 5 are at the same height, which reduces the stamping forming difficulty of the front rear floor reinforcing beam 2 and reduces the part segmentation. And when the vehicle is not equipped with a leg rest mechanism, the seat support member 6 can be welded at the position of the leg rest mechanism. Therefore, the leg rest mounting structure is applicable to both vehicle models equipped with a leg rest mechanism and vehicle models not equipped with a leg rest mechanism, and has no complex segmentation structure and does not require more adjustments, so the universality of the leg rest mounting structure is strong.

[0072] The setting of the battery mounting bracket 7 and the fuel tank mounting bracket 8 in the leg rest mounting structure enables the leg rest mounting structure to be used in pure electric vehicles, pure fuel vehicles, and hybrid vehicles.

[0073] This embodiment also proposes a vehicle, including a vehicle body, and the above-mentioned leg rest mounting structure is provided on the vehicle body. And because the vehicle is provided with the above-mentioned leg rest mounting structure, the vehicle has the advantage of relatively low cost; and a leg rest mechanism can be provided on the vehicle to meet the leg support needs of passengers, and increase the leg space of the rear passengers, improving the riding comfort.

[0074] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. A leg rest mounting structure, characterized in that: The vehicle comprises a rear floor (1), a rear floor front reinforcement beam (2), a rear floor front cross beam (3) and a leg support mounting member (4); the upper surface of one end of the rear floor (1) overlaps the rear floor front reinforcement beam (2), the lower surface of one end of the rear floor (1) overlaps the rear floor front cross beam (3), and the rear floor front reinforcement beam (2) and the rear floor front cross beam (3) are connected; The leg support mounting member (4) is connected to the rear floor front reinforcement beam (2), and the leg support mounting member (4) is used to install a leg support mechanism. The rear floor front reinforcement beam (2) and the rear floor front cross beam (3) are buckled and connected, and a mounting cavity (5) is formed between the rear floor front reinforcement beam (2) and the rear floor front cross beam (3). The leg support mounting member (4) is arranged in the mounting cavity (5), and the leg support mounting member (4) is connected to the surface of the rear floor front reinforcement beam (2) facing the rear floor front cross beam (3). The rear floor front reinforcement beam (2) is provided with an escape opening for connecting the leg support mounting member (4) with the leg support mechanism.

2. The leg rest mounting structure according to claim 1, characterized in that: The leg support mounting member (4) is a nut plate.

3. The leg rest mounting structure according to claim 1, wherein: The overlap position between the upper surface of one end of the rear floor (1) and the rear floor front reinforcement beam (2) is arranged along the left-right direction of the leg support mounting structure.

4. The leg rest mounting structure according to claim 1, wherein: The leg support mounting structure further comprises a seat support member (6), the seat support member (6) being connected to a surface of the rear floor front reinforcement beam (2) facing away from the rear floor front cross beam (3), and the seat support member (6) being used for supporting a seat.

5. The leg rest mounting structure according to claim 4, characterized in that: Taking a cross section perpendicular to the left-right direction of the leg support mounting structure, the cross section of the seat support member (6) is an "X"-shaped structure, the two ends of the "X"-shaped structure are connected to the rear floor front reinforcement beam (2), and the middle portion of the "X"-shaped structure protrudes in a direction away from the rear floor front reinforcement beam (2).

6. The leg rest mounting structure according to claim 4, characterized in that: The seat support component (6) is connected to the cavity wall of the mounting cavity (5); in the left-right direction of the leg support mounting structure, the seat support component (6) corresponds to one side of the mounting cavity (5), and the leg support mounting component (4) corresponds to the other side of the mounting cavity (5).

7. The leg rest mounting structure according to claim 1, wherein: The leg support mounting structure further comprises a battery mounting bracket (7), wherein the battery mounting bracket (7) is located on the lower surface of the leg support mounting structure, and the battery mounting bracket (7) is connected to the rear floor front cross beam (3) and the rear floor front reinforcement beam (2).

8. The leg rest mounting structure according to claim 1, characterized in that: The leg support mounting structure further comprises a fuel tank mounting bracket (8), wherein the fuel tank mounting bracket (8) is located on the lower surface of the leg support mounting structure, and the fuel tank mounting bracket (8) is connected to the front cross beam (3) of the rear floor.

9. The leg rest mounting structure according to claim 8, wherein: The oil tank mounting bracket (8) is located on the cavity wall of the mounting cavity (5).

10. An automobile, comprising a vehicle body, characterized in that: The vehicle body is provided with a leg support mounting structure as described in any one of claims 1-9.

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