CN214057724U

CN214057724U - Rear floor assembly

Info

Publication number: CN214057724U
Application number: CN202022737838.2U
Authority: CN
Inventors: 欧欣然; 王雪峰; 邹缘良; 姜海峰; 罗恒
Original assignee: Chongqing Branch of DFSK Motor Co Ltd
Current assignee: Chongqing Branch of DFSK Motor Co Ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-27
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a rear floor assembly, which comprises a front rear floor section and a rear floor rear section, wherein a seat mounting beam for mounting a seat is arranged between the front rear floor section and the rear floor rear section; the end part of the front section of the rear floor is bent to form a front section stiffening beam of the rear floor; the transverse sections of the front section of the rear floor and the rear section of the rear floor are in a stepped structure; the rear floor assembly of the technical scheme has the advantages that the multi-reinforcing rib shape at the rear end in the rear floor can meet the structural strength of the rear floor and the conditions of low-speed rear collision and optimal quality. The safety performance of rear collision is improved, the oil consumption and the cost are reduced, the rear floor is divided into a front rear floor section and a rear floor section, the complexity of a stamping die is reduced, the shape of a plate is optimized, the risks of wrinkling and cracking in the part forming process are reduced, the rear floor is connected with the three rows of seat mounting cross beams, and the local strength of the rear floor is increased; the strength of the rear floor is further increased by connecting the seat mounting cross beam with the rear floor.

Description

Rear floor assembly

Technical Field

The utility model relates to an automobile parts field, concretely relates to back floor assembly.

Background

In recent years, the automobile market in China is developed rapidly, the market demand is increased, the requirements of people on the performances of safety, comfort, NVH (noise, vibration and harshness) performance, abnormal sound and the like of automobiles are increased, the safety is undoubtedly one of the important points of attention, and traffic safety accidents are increased along with the rapid increase of the automobile maintenance.

In the structural design of a vehicle body, the design of a rear floor is very important and is a main part influencing rear collision, if the design is not reasonable, the strength and the rigidity of the rear floor are insufficient, the performances of the rear collision performance, the rigidity and the mode of the whole vehicle are influenced, and in order to increase the strength and the rigidity of the vehicle body, a plurality of stiffening beams are added, so that the weight of the whole vehicle is increased, the lightweight of the whole vehicle is not facilitated, the performance of the whole vehicle is improved while energy conservation and emission reduction are not effectively achieved, the cost of the whole vehicle is increased, meanwhile, the integral structure is too complex, and the rigidity, the strength and the performance are also not good.

There is a need for a rear floor assembly that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a rear floor assembly, the many strengthening ribs of rear end department are modelled in the rear floor, can satisfy the structural strength on rear floor, can satisfy again bump and the best state of quality after the low-speed. The safety performance of rear collision is improved, the oil consumption and the cost are reduced, the rear floor is divided into a front rear floor section and a rear floor section, the complexity of a stamping die is reduced, the shape of a plate is optimized, the risks of wrinkling and cracking in the part forming process are reduced, the rear floor is connected with the three rows of seat mounting cross beams, and the local strength of the rear floor is increased; the strength of the rear floor is further increased by connecting the seat mounting cross beam with the rear floor.

A rear floor assembly comprises a front rear floor section and a rear floor section, wherein a seat mounting beam for mounting a seat is arranged between the front rear floor section and the rear floor section; the end part of the front section of the rear floor is bent to form a front section stiffening beam of the rear floor; the transverse cross sections of the front section of the rear floor and the rear section of the rear floor are in a stepped structure.

Furthermore, the end part of the front section of the rear floor is bent along the longitudinal direction and extends along the transverse direction to form the front section reinforcing beam of the rear floor, and the transverse section of the front section reinforcing beam of the rear floor is in a Z-shaped structure.

Furthermore, the front-section reinforcing beam of the rear floor comprises a floor overlapping section and a cross beam reinforcing section, the longitudinal section of the floor overlapping section is of a structure shaped like a Chinese character ji, and the cross beam reinforcing section protrudes along the longitudinal direction to form a plurality of reinforcing convex hull structures.

Furthermore, the middle part of the floor lap joint section is raised, and weight-reducing strip-shaped holes are formed in two sides of the bottom plate lap joint section; the reinforcing convex hulls are arranged at intervals along the longitudinal direction.

Furthermore, the lap joint section of the floor and the reinforcing section of the cross beam are circumferentially formed into a lap joint flanging and a reinforcing section flanging respectively, and an avoidance gap is arranged between the lap joint flanging and the reinforcing section flanging.

Furthermore, seat installation crossbeam circumference direction forms the seat crossbeam turn-ups, seat installation crossbeam top is provided with a plurality of seat crossbeam lightening holes.

Furthermore, seat installation crossbeam both ends are provided with the first side of arc structure and enclose the connecting plate, be provided with the second side of arc structure on the rear floor back end and enclose the connecting plate.

Furthermore, a plurality of reinforcing ribs which are parallel to each other are arranged on the rear section of the rear floor along the transverse direction.

The utility model has the advantages that:

the utility model provides a rear floor assembly, which adopts a cold-rolled steel plate of DC01, is easy to form, has simple process and low rejection rate; the multi-reinforcement rib shape at the rear end in the rear floor can meet the structural strength of the rear floor and the condition of low-speed rear collision and optimal quality. The safety performance of rear collision is improved, the oil consumption and the cost are reduced, the rear floor is divided into a front rear floor section and a rear floor section, the complexity of a stamping die is reduced, the shape of a plate is optimized, the risks of wrinkling and cracking in the part forming process are reduced, the rear floor is connected with the three rows of seat mounting cross beams, and the local strength of the rear floor is increased; the strength of the rear floor is further increased by connecting the seat mounting cross beam with the rear floor.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a front reinforcing beam of the rear floor;

FIG. 3 is a schematic view of a seat mounting beam configuration;

fig. 4 is a side view of the present invention.

Detailed Description

FIG. 1 is a schematic view of the overall structure of the present invention; FIG. 2 is a schematic structural view of a front reinforcing beam of the rear floor; FIG. 3 is a schematic view of a seat mounting beam configuration; fig. 4 is a side view of the present invention, and as shown in the figure, a rear floor assembly includes a front floor section 1 and a rear floor section 2, and a seat mounting cross beam 4 for mounting a seat is disposed between the front floor section 1 and the rear floor section 2; the end part of the front rear floor 1 is bent to form a front rear floor stiffening beam 3; the transverse sections of the front section 1 and the rear section 2 of the rear floor are of a step structure, and the whole sections are arranged in a step shape (as shown in fig. 4), so that the processing and forming are more convenient, and the whole performance is improved; the rear floor assembly adopting the DC01 cold-rolled steel plate is easy to form, simple in process and low in rejection rate; the multi-reinforcement rib shape at the rear end in the rear floor can meet the structural strength of the rear floor and the condition of low-speed rear collision and optimal quality. The safety performance of rear collision is improved, the oil consumption and the cost are reduced, the rear floor is divided into a front rear floor section and a rear floor section, the complexity of a stamping die is reduced, the shape of a plate is optimized, the risks of wrinkling and cracking in the part forming process are reduced, the rear floor is connected with the three rows of seat mounting cross beams, and the local strength of the rear floor is increased; the strength of the rear floor is further increased by connecting the seat mounting cross beam with the rear floor.

In this embodiment, the end of the front floor 1 is bent in the longitudinal direction and extends in the transverse direction to form the front floor reinforcing beam, and the transverse section of the front floor reinforcing beam 3 is in a Z-shaped structure. In the transverse direction (i.e. the horizontal direction in fig. 1), the end part (i.e. the left end part in fig. 1) of the rear floor is bent to form a rear floor front section reinforcing beam structure, the cross section of the whole rear floor front section in the transverse direction is of a Z-shaped structure, and the rear floor front section reinforcing beam structure and the rear floor front section are integrally formed, so that the end part strength of the rear floor front section is enhanced.

In this embodiment, the rear floor front reinforcement beam includes a floor overlapping section 32 and a beam reinforcement section, a longitudinal section of the floor overlapping section 32 (i.e., a length direction of the beam in fig. 2) is in a zigzag structure, and the beam reinforcement section protrudes along a longitudinal direction to form a plurality of reinforcement convex hull structures. The middle position of floor overlap joint section 32 is protruding, and the tip is provided with the mounting hole for with the cooperation installation of other spare parts, middle bellied structure plays the effect that the structure is strengthened, lets the position simultaneously, the overall structure's of being convenient for installation, overall structure has replaced the mode that adopts traditional crossbeam, adopts integrated into one piece's mode to make overall structure have better rigidity intensity, promotes life.

In the embodiment, the middle part of the floor overlapping section is raised, and the two sides of the bottom plate overlapping section are provided with weight-reducing strip-shaped holes 31; the reinforcing convex hulls 33 are multiple, and the reinforcing convex hulls 33 are uniformly arranged at intervals along the longitudinal direction; the strip-shaped lightening holes 31 are used for lightening the weight and meeting the requirement of lightening the weight.

In this embodiment, the lap joint section of the floor and the reinforcement section of the cross beam are circumferentially formed into a lap joint flange and a reinforcement section flange respectively, an avoidance gap 34 is arranged between the lap joint flange and the reinforcement section flange, and the arrangement of the avoidance gap 34 improves the structural strength of the edge part of the component by material processing and by the design of the reinforcement flange.

In the present embodiment, the seat mounting beam 4 forms a seat beam flange 42 in the circumferential direction, and a plurality of seat beam lightening holes 41 are formed in the top of the seat mounting beam. The middle part of the seat mounting beam is raised, and the periphery of the seat mounting beam forms a flanging structure to be attached to the floor, so that the seat mounting beam has the function of structure reinforcement.

In this embodiment, seat installation crossbeam both ends are provided with the first side of arc structure and enclose connecting plate 43, be provided with the second side of arc structure on the back floor back end and enclose connecting plate 5, and the side wall connecting plate carries out erection joint with car side wall and rear wheel casing, forms effectual biography power route when the collision, increases whole car security.

In this embodiment, be provided with many strengthening ribs that are parallel to each other along the transverse direction on the back floor back end, many places set up the strengthening rib molding, can satisfy the structural strength of back floor, can satisfy its optimal state that reaches the performance again, have improved the security performance that bumps after to reduce oil consumption and cost.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A rear floor assembly, comprising: the rear floor comprises a front rear floor section and a rear floor section, wherein a seat mounting cross beam for mounting a seat is arranged between the front rear floor section and the rear floor section; the end part of the front section of the rear floor is bent to form a front section stiffening beam of the rear floor; the transverse cross sections of the front section of the rear floor and the rear section of the rear floor are in a stepped structure.

2. The rear floor assembly as set forth in claim 1, wherein: the end part of the front section of the rear floor is bent along the longitudinal direction and extends along the transverse direction to form the front section reinforcing beam of the rear floor, and the transverse section of the front section reinforcing beam of the rear floor is of a Z-shaped structure.

3. The rear floor assembly as set forth in claim 2, wherein: the front-section reinforcing beam of the rear floor comprises a floor overlapping section and a cross beam reinforcing section, the longitudinal section of the floor overlapping section is of a structure shaped like a Chinese character ji, and the cross beam reinforcing section protrudes along the longitudinal direction to form a plurality of reinforcing convex hull structures.

4. The rear floor assembly as set forth in claim 3, wherein: the middle part of the floor lap joint section is raised, and weight-reducing strip-shaped holes are formed in two sides of the bottom plate lap joint section; the reinforcing convex hulls are arranged at intervals along the longitudinal direction.

5. The rear floor assembly as set forth in claim 4, wherein: the floor is characterized in that a lap joint flanging and a reinforcing section flanging are respectively formed in the circumferential direction of the lap joint section and the reinforcing section of the cross beam, and an avoidance gap is arranged between the lap joint flanging and the reinforcing section flanging.

6. The rear floor assembly as set forth in claim 5, wherein: the seat mounting beam is provided with a plurality of seat beam lightening holes in the top.

7. The rear floor assembly as set forth in claim 6, wherein: the seat installation crossbeam both ends are provided with the first side of arc structure and enclose the connecting plate, be provided with the second side of arc structure on the rear floor back end and enclose the connecting plate.

8. The rear floor assembly as set forth in claim 7, wherein: and a plurality of reinforcing ribs which are parallel to each other are arranged on the rear section of the rear floor along the transverse direction.