Front floor

Abstract

The utility model relates to the technical field of automobiles, in particular to a front floor which comprises a floor body, a first mounting box and a plurality of second mounting boxes, the first mounting box and the second mounting boxes are independent parts and are fixedly arranged on the top face of the floor body, and the first mounting box and the second mounting boxes are arranged on the top face of the floor body. The two sides, in the left-right direction, of the first installation box are each provided with at least one second installation box, the first installation box is used for installing a hand brake device, each second installation box is provided with a first seat installation part, and the first seat installation parts are used for being connected to a seat. The front floor provided by the utility model can be provided with parts for mounting the hand brake device and connecting to the seat without reducing the strength and rigidity performance of the front floor, so that the strength and rigidity of the front floor can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, in particular to a front floor. BACKGROUND

[0002] The front floor of the automobile is located below the front seat of the vehicle and covers the top of the chassis structure, and is an important part of the vehicle body structure. As a part of the vehicle body frame, it is welded with structural members such as longitudinal beams and cross beams. The strength and rigidity of the front floor and the vehicle body are closely related.

[0003] At present, some front floors are stamped upward to form multiple protruding parts. Some of the protruding parts are used to connect to the seat, and some of the protruding parts are used to install the hand brake device. However, this may weaken the strength and rigidity of the front floor, resulting in a decrease in the strength and rigidity of the vehicle body. SUMMARY

[0004] The utility model aims to provide a front floor to solve the technical problem that the strength of the front floor is reduced when the front floor is stamped to form protruding parts for connecting to the seat and protruding parts for installing the hand brake device.

[0005] To achieve the above-mentioned purpose, the utility model provides a front floor, which comprises a floor body, a first mounting box and multiple second mounting boxes. The first mounting box and the second mounting box are both independent components. The first mounting box and the second mounting box are fixedly arranged on the top surface of the floor body. At least one second mounting box is arranged on both sides of the first mounting box along the left-right direction. The first mounting box is used to install the hand brake device. The second mounting box is provided with a first seat mounting part. The first seat mounting part is used to connect to the seat.

[0006] Optionally, the first mounting box comprises a first box body and multiple first connecting parts. The inner side surface of the first box body and the top surface of the front floor form a first cavity. One side of the first connecting part is arranged on the bottom surface of the first box body, and the other side extends away from the first cavity. The first connecting part is fixedly connected to the top surface of the floor body.

[0007] The first box body comprises a first box plate, two second box plates, two third box plates and multiple lap plates. The first box plate is arranged above the front floor in a spaced manner. Two second box plates are fixedly arranged on two side surfaces of the first box plate with respect to the left-right direction. The bottom surface of the second box plate is fixedly provided with the first connecting part. The lap plates are arranged on both sides of the second box plate along the front-rear direction. Two third box plates are fixedly arranged on two side surfaces of the first box plate with respect to the front-rear direction. The bottom surface of the third box plate is fixedly provided with the first connecting part. The lap plates are lapped on the outer side surfaces of the third box plates with respect to the front-rear direction and are connected to the third box plates.

[0008] Optionally, the outer surface of the first box body is provided with a plurality of first notches and a plurality of second notches penetrating into the first cavity, the first notches are surrounded by the first box plate, the second box plate, the third box plate and the lap plate, and the second notches are surrounded by the second box plate, the third box plate, the lap plate and the floor body.

[0009] Optionally, the second mounting box comprises a second box body and a second connecting portion, the inner side surface of the second box body and the top surface of the floor body form a second cavity, the first seat mounting portion is arranged on the second box body, the second connecting portion is arranged on the bottom surface of the second box body and extends away from the second cavity, and the second connecting portion is connected to the top surface of the floor body.

[0010] Optionally, the third mounting box is a separate component, the floor body comprises a first horizontal plate, a second horizontal plate and a connecting plate, the first horizontal plate is located in front of the second horizontal plate and is lower than the second horizontal plate, and the connecting plate is connected to the first horizontal plate and the second horizontal plate.

[0011] The third mounting box is fixedly connected to the top surface of the first horizontal plate, the front side surface of the connecting plate and the top surface of the second horizontal plate, and the second seat mounting portion arranged on the position directly above the first horizontal plate is used for mounting a seat.

[0012] Optionally, the third mounting box comprises a third box body and a third connecting portion, the inner side surface of the third box body and the floor body form a third cavity, the third connecting portion is arranged around the third box body, the third connecting portion extends away from the third cavity, the third connecting portion is connected to the top surface of the first horizontal plate, the front side surface of the connecting plate and the top surface of the second horizontal plate, and the second seat mounting portion is arranged on the third box body.

[0013] Optionally, the third box body comprises a first box portion and a second box portion connected in sequence from front to back, the third cavity comprises a first sub-cavity and a second sub-cavity connected in communication, the inner side surface of the first box portion and the top surface of the first horizontal plate form the first sub-cavity, and the inner side surface of the second box portion and the front side surface of the connecting plate form the second sub-cavity.

[0014] Optionally, the fourth mounting box is a separate component, the fourth mounting box is arranged on the top surface of the floor body and is located on one side of the first mounting box in the left-right direction, the fourth mounting box is arranged in the left-right direction, a plurality of third seat mounting portions are arranged in the left-right direction at intervals, and the third seat mounting portions are used for being connected to seats.

[0015] Optionally, the fourth mounting box comprises a fourth box body and a fourth connecting part, an inner side of the fourth box body and the top surface of the floor body form a fourth cavity, the fourth connecting part is arranged on the bottom surface of the fourth box body around the fourth box body, the fourth connecting part extends away from the fourth cavity, the fourth connecting part is connected to the top surface of the floor body, and the third seat mounting part is arranged on the fourth box body.

[0016] Optionally, the top surface of the floor body is provided with a plurality of convex ribs.

[0017] Compared with the prior art, the front floor has the beneficial effects that:

[0018] In the front floor, the first mounting box is an independent part for mounting the hand brake device, and the second mounting box is an independent part provided with the first seat mounting part, wherein the first seat mounting part is used for being connected to the seat, further, the first mounting box and the plurality of second mounting boxes are fixedly arranged on the top surface of the floor body, and the plurality of second mounting boxes are respectively located on the two sides of the first mounting box in the left-right direction, so that the seat can be arranged and mounted on the two sides of the hand brake device in the left-right direction; in summary, the front floor of the utility model does not need to reduce the strength and rigidity performance of itself, and can have the part for mounting the hand brake device and being connected to the seat, so that the strength and rigidity of the front floor can be guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the front floor of the utility model.

[0020] Figure 2 It is a structural schematic view of the front floor of the utility model. Figure 1 It is an enlarged view of A part in the middle.

[0021] Figure 3 It is an enlarged view of B part in the middle. Figure 1 It is an enlarged view of B part in the middle.

[0022] Figure 4 It is an enlarged view of C part in the middle. Figure 1 It is an enlarged view of C part in the middle.

[0023] Reference numerals: 1, floor body; 11, first horizontal plate; 12, second horizontal plate; 13, connecting plate; 2, first mounting box; 21, first box body; 211, first box plate; 212, second box plate; 213, third box plate; 214, lap plate; 22, first connecting part; 23, first notch; 24, second notch; 3, second mounting box; 31, second box body; 32, second connecting part; 33, first seat mounting part; 4, third mounting box; 41, third box body; 411, first box part; 412, second box part; 42, third connecting part; 43, second seat mounting part; 5, fourth mounting box; 51, fourth box body; 52, fourth connecting part; 53, third seat mounting part; 54, code surface hole; 6, convex rib. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0025] In the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0027] As Figures 1 to 4The front floor is shown in the orientation when the driver is located above the front floor for general normal driving, and the opposite direction is rear. The upper side and the lower side are distinguished from each other when the driver is located above the front floor for general normal driving. The left side and the right side are distinguished from each other when the driver is located above the front floor for general normal driving. The front floor of the utility model comprises a floor body 1, a first installation box 2 and a plurality of second installation boxes 3, the first installation box 2 and the second installation box 3 are independent components, the first installation box 2 and the second installation box 3 are fixedly arranged on the top surface of the floor body 1, at least one second installation box 3 is arranged on the left and right sides of the first installation box 2, the first installation box 2 is used for installing a hand brake device, the second installation box 3 is provided with a first seat installation part 33, and the first seat installation part 33 is used for being connected to a seat.

[0028] In the above technical solution, the first installation box 2 is an independent component for installing a hand brake device, and the second installation box 3 is an independent component provided with a first seat installation part 33, wherein the first seat installation part 33 is used for being connected to a seat. Further, the first installation box 2 and the plurality of second installation boxes 3 are fixedly arranged on the top surface of the floor body 1, and the plurality of second installation boxes 3 are respectively arranged on the left and right sides of the first installation box 2, so that the seat can be arranged and installed on the left and right sides of the hand brake device in the left and right directions. In summary, the front floor of the utility model can have a part for installing a hand brake device and being connected to a seat without reducing the strength and rigidity performance of the front floor, so that the strength and rigidity of the front floor can be guaranteed. In addition, the installation boxes are all independent components (the subsequent other installation boxes are also independent components), further, the installation boxes are all components independent of the floor body 1, that is, the floor body 1 and the installation boxes are respectively machined, and then connected through a fixed connection mode such as welding, fastener connection, and cannot be obtained by stamping and casting integral molding process. In addition, the first installation box 2 can install the hand brake device by setting a hole and a thread, and how to set is not limited in the specification. In addition, each seat installation part can also connect the seat by setting a hole and a thread, and how to set is not limited in the specification.

[0029] Further, the first mounting box 2 comprises a first box body 21 and a plurality of first connecting parts 22, an inner side of the first box body 21 and a top surface of the front floor form a first cavity, one side of the first connecting part 22 is arranged on a bottom surface of the first box body 21, the other side extends away from the first cavity, and the first connecting part 22 is fixedly connected to a top surface of the floor body 1; wherein the first cavity makes the first box body 21 hollow, so as to increase the height of the position where the hand brake device is mounted and reduce the weight, in addition, the first connecting part 22 is connected to the first box body 21 on both sides and extends away from the first cavity, so as to increase the area connected to the floor body 1, thereby increasing the connection strength with the floor body 1 and facilitating the connection work.

[0030] Further, the first box body 21 comprises a first box plate 211, two second box plates 212, two third box plates 213 and a plurality of lap plates 214, the first box plate 211 is arranged above the front floor in a spaced manner, the two second box plates 212 are fixedly arranged on two sides of the first box plate 211 with respect to the left-right direction, the first connecting part 22 is fixedly arranged on a bottom surface of the second box plate 212, the lap plate 214 is arranged on both sides of the second box plate 212 along the front-rear direction, the two third box plates 213 are fixedly arranged on two sides of the first box plate 211 with respect to the front-rear direction, the first connecting part 22 is arranged on a bottom surface of the third box plate 213, the lap plate 214 is lapped on an outer side of the third box plate 213 with respect to the front-rear direction and connected to the third box plate 213; wherein this structure makes the first mounting box 2 be made by bending the plate material, so as to increase the manufacturing process.

[0031] Further, an outer surface of the first box body 21 is provided with a plurality of first notches 23 and a plurality of second notches 24 penetrating into the first cavity, the first notches 23 are surrounded by the first box plate 211, the second box plate 212, the third box plate 213 and the lap plate 214, and the second notches 24 are surrounded by the second box plate 212, the third box plate 213, the lap plate 214 and the floor body 1, so as to facilitate bending and avoid the plurality of components intersecting at one place, facilitate welding, thereby increasing the manufacturing process; preferably, the first notches 23 are four, and the second notches 24 are four.

[0032] Further, the second mounting box 3 comprises a second box body 31 and a second connecting part 32, the inner side of the second box body 31 and the top surface of the floor body 1 form a second cavity, the first seat mounting part 33 is arranged on the second box body 31, the second connecting part 32 is arranged on the bottom surface of the second box body 31 and extends away from the second cavity, and the second connecting part 32 is connected to the top surface of the floor body 1; wherein the second cavity makes the second box body 31 hollow to increase the height of the first seat mounting part 33 and reduce the weight, in addition, the second connecting part 32 is arranged on the bottom surface of the second box body 31 and extends away from the second cavity, which can increase the area connected to the floor body 1, thereby increasing the connection strength with the floor body 1 and facilitating the connection work.

[0033] Further, the third mounting box 4 is an independent component, the floor body 1 comprises a first horizontal plate 11, a second horizontal plate 12 and a connecting plate 13, the first horizontal plate 11 is located in front of the second horizontal plate 12 and is lower than the second horizontal plate 12, the bottom of the connecting plate 13 is connected to the top of the first horizontal plate 11, and the top of the connecting plate 13 is connected to the bottom of the second horizontal plate 12; wherein the first horizontal plate 11 is the main part of the floor body 1, and the connecting plate 13 and the second horizontal plate 12 are located at the rear position of the first horizontal plate 11.

[0034] Further, the first mounting box 2 and the second mounting box 3 are fixedly arranged on the top surface of the first horizontal plate 11, the third mounting box 4 is fixedly connected to the top surface of the first horizontal plate 11, the front side surface of the connecting plate 13 and the top surface of the second horizontal plate 12, and the second seat mounting part 43 is arranged on the third mounting box 4 located directly above the first horizontal plate 11, and the second seat mounting part 43 is used for mounting a seat; wherein the third mounting box 4 is connected to the first horizontal plate 11, the connecting plate 13 and the second horizontal plate 12 at the same time to increase the connection strength and rigidity of the three, and the position of the third mounting box 4 on the first horizontal plate 11 is also provided with a seat mounting part to reduce the number of mounting boxes provided with seat mounting parts, thereby reducing the manufacturing cost and improving the production efficiency.

[0035] Further, a plurality of third mounting boxes 4 are arranged symmetrically along the center plane of the floor body 1 to uniformly enhance the connection strength and rigidity of the three, wherein the center plane is the plane where the center line of the floor body 1 is located, and the plane is perpendicular to the left-right direction.

[0036] Further, the third mounting box 4 comprises a third box body 41 and a third connecting part 42, the inner side of the third box body 41 and the floor body 1 form a third cavity, the third connecting part 42 is arranged around the third box body 41, the third connecting part 42 extends away from the third cavity, the third connecting part 42 is connected to the top surface of the first horizontal plate 11, the front side of the connecting plate 13 and the top surface of the second horizontal plate 12, and the second seat mounting part 43 is arranged on the third box body 41; wherein the third cavity makes the third box body 41 hollow, so as to increase the height of the position where the second seat mounting part 43 is arranged and reduce the weight, in addition, the third connecting part 42 is arranged on the surface of the third box body 41 facing the floor body 1, and the third connecting part 42 extends away from the third cavity, so as to increase the area connected to the floor body 1, thereby increasing the connection strength with the floor body 1 and facilitating the connection work.

[0037] Further, the third box body 41 comprises a first box part 411 and a second box part 412 connected in sequence from front to back, the third cavity comprises a first sub-cavity and a second sub-cavity connected in communication, the inner side of the first box part 411 and the top surface of the first horizontal plate 11 form the first sub-cavity, and the inner side of the second box part 412 and the front side of the connecting plate 13 form the second sub-cavity, so as to divide the third cavity into the first sub-cavity extending in the front-rear direction and the second sub-cavity extending in the up-down direction, so as to improve the weight reduction effect and increase the area of the third connecting part connected to the floor body 1; wherein the third connecting part 42 is arranged on the front side of the first box part 411, the side of the first box part 411 relative to the left-right direction, the side of the second box part 412 relative to the left-right direction, and the rear side of the second box part 412.

[0038] Further, the fourth mounting box 5 is arranged on the top surface of the floor body 1 and located on one side of the first mounting box 2 along the left-right direction, the fourth mounting box 5 extends along the left-right direction, a plurality of third seat mounting parts 53 are arranged on the fourth mounting box 5 along the left-right direction, the third seat mounting parts 53 are used for connecting to seats, and the fourth mounting box 5 is provided with a code surface hole 54 penetrating in the front-rear direction; wherein the fourth mounting box 5 is provided with the code surface hole 54 through the relatively long length along the left-right direction, so as to facilitate the code surface work and can replace two or more other mounting boxes provided with a single seat mounting part; in addition, generally, one front floor is provided with one fourth mounting box 5.

[0039] Further, the fourth mounting box 5 comprises a fourth box body 51 and a fourth connecting part 52, the inner side of the fourth box body 51 and the top surface of the floor body 1 form a fourth cavity, the fourth connecting part 52 is arranged on the bottom surface of the fourth box body 51 around the fourth box body 51, the fourth connecting part 52 extends away from the fourth cavity, the fourth connecting part 52 is connected to the top surface of the floor body 1, the code surface hole 54 is arranged on the side surface of the fourth box body 51 relative to the front-rear direction and is communicated with the fourth cavity, and the third seat mounting part 53 is arranged on the fourth box body 51; wherein the fourth cavity makes the fourth box body 51 hollow to increase the height of the position where the third seat mounting part 53 is arranged and reduce the weight, in addition, the fourth connecting part 52 is arranged on the bottom surface of the fourth box body 51 around the fourth box body 51, the fourth connecting part 52 extends away from the fourth cavity to increase the area connected to the floor body 1, thereby increasing the connection strength with the floor body 1 and facilitating the connection work.

[0040] Further, the top surface of the floor body 1 is provided with a plurality of ribs 6 at intervals to enhance the strength and rigidity of the floor body 1 and also effectively prevent the articles on the co-driver side from rolling to the position on the driver pedal side, avoiding affecting the operation of the driver.

[0041] Further, the first mounting box 2 is provided with only one fourth mounting box 5 on one side, the number of the second mounting boxes 3 on the side of the first mounting box 2 provided with the fourth mounting box 5 is less than the number of the second mounting boxes 3 on the other side of the first mounting box 2, and the difference between the number of the two is the number of the third seat mounting parts 53 arranged on the fourth mounting box 5.

[0042] Further, one side of the first mounting box 2 along the left-right direction is set as a first side and the other side is set as a second side, wherein the first side is provided with three second mounting boxes 3 and one third mounting box 4, specifically, on this side, two second mounting boxes 3 are arranged at intervals along the left-right direction, one second mounting box 3 and one third mounting box 4 are arranged at intervals along the left-right direction and are located behind the two second mounting boxes 3; the second side is provided with one second mounting box 3, one third mounting box 4 and one fourth mounting box 5 (provided with two third seat mounting parts 53), the second mounting box 3 and the third mounting box 4 are arranged at intervals along the left-right direction and are located behind the fourth mounting box 5.

[0043] Further, fixed arrangement and fixed connection refer to the relative position relationship of two components being fixed, including but not limited to being fixed by a connecting piece, being fixed by welding, being fixed by an adhesive, being fixed by one-piece molding, and being fixed by buckle connection.

[0044] Further, the connecting member includes, but is not limited to, a fastener, a strap, a tie, a pneumatic connecting element, a hydraulic connecting element, a flange plate, a Velcro, a button.

[0045] In summary, the front floor provided by the embodiments of the present application has the following technical effects:

[0046] In the front floor, the first mounting box 2 is a separate component for mounting the hand brake device, and the second mounting box 3 is a separate component provided with a first seat mounting portion 33, wherein the first seat mounting portion 33 is used for being connected to a seat, and further, the first mounting box 2 and the plurality of second mounting boxes 3 are fixedly arranged on the top surface of the floor body 1, and the plurality of second mounting boxes 3 are respectively arranged on the two sides of the first mounting box 2 along the left-right direction, so that the seat can be arranged and mounted on the two sides of the hand brake device along the left-right direction. In summary, the front floor of the present application can have the part for mounting the hand brake device and being connected to the seat without reducing the strength and rigidity performance of the front floor, so that the strength and rigidity of the front floor can be guaranteed.

[0047] The above description is only the preferred embodiments of the present application, and it should be pointed out that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A front floor characterized in that, The floor body (1), the first mounting box (2) and a plurality of second mounting boxes (3), the first mounting box (2) and the second mounting box (3) are independent components, the first mounting box (2) and the second mounting box (3) are fixedly arranged on the top surface of the floor body (1), the first mounting box (2) is provided with at least one second mounting box (3) on both sides along the left-right direction, the first mounting box (2) is used for mounting a hand brake device, and the second mounting box (3) is provided with a first seat mounting portion (33) used for being connected to a seat.

2. The front floor according to claim 1, characterized in that, The first mounting box (2) comprises a first box body (21) and a plurality of first connecting portions (22), the inner side surface of the first box body (21) and the top surface of the front floor form a first cavity, one side of the first connecting portion (22) is arranged on the bottom surface of the first box body (21), the other side extends away from the first cavity, and the first connecting portion (22) is fixedly connected to the top surface of the floor body (1); The first box body (21) comprises a first box plate (211), two second box plates (212), two third box plates (213) and a plurality of lap plates (214), the first box plate (211) is arranged above the front floor in a spaced manner, the two second box plates (212) are fixedly arranged on the two side surfaces of the first box plate (211) relative to the left-right direction, the bottom surface of the second box plate (212) is fixedly provided with the first connecting portion (22), the lap plate (214) is arranged on the two side surfaces of the second box plate (212) along the front-rear direction, the two third box plates (213) are fixedly arranged on the two side surfaces of the first box plate (211) relative to the front-rear direction, the bottom surface of the third box plate (213) is fixedly provided with the first connecting portion (22), and the lap plate (214) is lapped on the outer side surface of the third box plate (213) relative to the front-rear direction and connected to the third box plate (213).

3. The front floor according to claim 2, characterized in that The outer surface of the first box body (21) is provided with a plurality of first notches (23) and a plurality of second notches (24) penetrating into the first cavity, the first notch (23) is surrounded by the first box plate (211), the second box plate (212), the third box plate (213) and the lap plate (214), and the second notch (24) is surrounded by the second box plate (212), the third box plate (213), the lap plate (214) and the floor body (1).

4. The front floor according to claim 1, characterized in that, The second mounting box (3) comprises a second box body (31) and a second connecting portion (32), the inner side surface of the second box body (31) and the top surface of the floor body (1) form a second cavity, the first seat mounting portion (33) is arranged on the second box body (31), the second connecting portion (32) is arranged on the bottom surface of the second box body (31) and extends away from the second cavity, and the second connecting portion (32) is connected to the top surface of the floor body (1).

5. The front floor according to claim 1, characterized in that, The third mounting box (4) is fixedly connected to the top surface of the first horizontal plate (11), the front side surface of the connecting plate (13) and the top surface of the second horizontal plate (12), and a second seat mounting portion (43) is arranged at a position directly above the first horizontal plate (11), and the second seat mounting portion (43) is used for mounting a seat. The third mounting box (4) includes a third box body (41) and a third connecting portion (42), an inner side surface of the third box body (41) and the floor body (1) form a third cavity, the third connecting portion (42) is arranged around the third box body (41), the third connecting portion (42) extends away from the third cavity, the third connecting portion (42) is connected to the top surface of the first horizontal plate (11), the front side surface of the connecting plate (13) and the top surface of the second horizontal plate (12), and the second seat mounting portion (43) is arranged on the third box body (41).

6. The front floor according to claim 5, characterized in that The third box body (41) includes a first box portion (411) and a second box portion (412) connected in sequence from front to back, the third cavity includes a first sub-cavity and a second sub-cavity connected in communication, an inner side surface of the first box portion (411) and the top surface of the first horizontal plate (11) form the first sub-cavity, and an inner side surface of the second box portion (412) and the front side surface of the connecting plate (13) form the second sub-cavity.

7. The front floor according to claim 6, characterized in that The fourth mounting box (5) is arranged on the top surface of the floor body (1) and located on one side of the first mounting box (2) in the left-right direction, the fourth mounting box (5) extends in the left-right direction, and a plurality of third seat mounting portions (53) are arranged in the left-right direction at intervals on the fourth mounting box (5), and the third seat mounting portions (53) are used for being connected to seats.

8. The front floor according to claim 1, characterized in that, The fourth mounting box (5) includes a fourth box body (51) and a fourth connecting portion (52), an inner side surface of the fourth box body (51) and the top surface of the floor body (1) form a fourth cavity, the fourth connecting portion (52) is arranged on the bottom surface of the fourth box body (51) around the fourth box body (51), the fourth connecting portion (52) extends away from the fourth cavity, the fourth connecting portion (52) is connected to the top surface of the floor body (1), and the third seat mounting portions (53) are arranged on the fourth box body (51).

9. The front floor according to claim 8, characterized in that A plurality of protruding ribs (6) are arranged at intervals on the top surface of the floor body (1).

10. The front floor according to claim 1, characterized in that, ​

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