Rear floor framework and vehicle

Abstract

The invention relates to a rear floor framework and a vehicle, the rear floor framework comprises a longitudinal beam part, a cross beam part, a reinforcing beam and an anti-collision part, the longitudinal beam part and the cross beam part form an integrally formed frame structure, the reinforcing beam is connected with the longitudinal beam part in the transverse direction and is located on the vertical bisector of the longitudinal beam part, and the anti-collision part is located on the reinforcing beam. The anti-collision part is detachably connected to the rear side of the longitudinal beam part. The rear floor framework is composed of the integrally-formed frame structure, the transversely-connected reinforcing beams and the detachable anti-collision parts, the structural strength, the damping effect and the safety of the rear floor framework are improved, meanwhile, the installation and maintenance procedures of the rear floor framework are simplified, and space utilization is optimized.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles, and in particular to a rear floor frame and a vehicle. Background Art

[0002] In the process of vehicle manufacturing, in order to meet the load-bearing requirements of the vehicle body and have high strength, high torsional stiffness, fatigue durability and excellent collision performance, vehicles usually adopt complex structural designs and a variety of high-strength materials. In terms of structural strength, by increasing the number of parts and using special welding processes, the rear floor frame can effectively assume important functions such as connecting and supporting the body, floor, seats, suspension system, trunk and rear buffer beam. In the event of a collision, it can also reduce damage to passengers and power battery systems through its own deformation, ensuring safety to a certain extent. In terms of shock absorption effect, it relies on complex shock absorption structures and buffer materials to better filter vibrations from the road surface.

[0003] However, in the related technologies, the complex structure and numerous parts make the installation process cumbersome, requiring professional technicians and a lot of installation time. In the later maintenance, the difficulty of troubleshooting and replacing parts is also greatly increased. At the same time, the complex structure occupies a lot of space, which is not conducive to the effective use of the space inside the car, and cannot meet the current consumer demand for diversification and maximum use of car space. Summary of the invention

[0004] An object of the present disclosure is to provide a rear floor frame and a vehicle to at least partially solve the technical problems existing in the related art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a rear floor frame, including a longitudinal beam portion, a cross beam portion, a reinforcing beam and an anti-collision portion, wherein the longitudinal beam portion and the cross beam portion are constructed as an integrally formed frame structure, the reinforcing beam is laterally connected to the longitudinal beam portion and is located at the symmetry axis of the frame structure, and the anti-collision portion is detachably connected to the rear side of the longitudinal beam portion.

[0006] Optionally, the longitudinal beam portion includes two longitudinal beams located on both sides, and the anti-collision portion includes two anti-collision beams connected to the rear sides of the two longitudinal beams in a one-to-one correspondence. Wherein, one of the two ends of the anti-collision beam and the longitudinal beam close to each other is provided with a slot opening toward the other, and the other is provided with a plug for matching with the slot.

[0007] Optionally, the end of the anti-collision beam is constructed as a C-shaped structure to serve as the slot, and the outer contour structure of the end of the longitudinal beam close to the anti-collision beam matches the inner contour structure of the C-shaped structure to form the plug.

[0008] Optionally, the anti-collision portion further includes two groups of first mounting holes formed on the plug and the slot in a one-to-one correspondence, and the two groups of first mounting holes are used for fasteners to pass through in sequence to connect the plug and the slot.

[0009] Optionally, the longitudinal beam is an upwardly raised arched beam, and the cross beam portion includes a rear cross beam and a front cross beam, wherein the rear cross beam and the front cross beam are respectively connected to the ends of the two arched beams at intervals to form the frame structure, and the reinforcing beam is connected to the top position of the arched beam.

[0010] Optionally, there are two front cross beams, which are arranged at intervals along the extension direction of the longitudinal beam.

[0011] Optionally, the reinforcing beam is connected to the arched beam by bolts.

[0012] Optionally, the frame structure is integrally formed by die-casting.

[0013] Optionally, a shock absorbing tower is further included, wherein the shock absorbing tower is formed at one end of the longitudinal beam close to the anti-collision beam and protrudes upward from the longitudinal beam.

[0014] According to a second aspect of the present disclosure, a vehicle is provided, comprising the rear floor frame described above.

[0015] Through the above technical solution, the rear floor frame is composed of an integrally formed frame structure, transversely connected reinforcing beams and a detachable anti-collision part. While improving the structural strength, shock absorption effect and safety of the rear floor frame, it simplifies the installation and maintenance procedures of the rear floor frame and optimizes space utilization.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a schematic structural diagram of a rear floor frame provided in an exemplary embodiment of the present disclosure; Figure 2 is a partial structural schematic diagram of a rear floor frame provided in an exemplary embodiment of the present disclosure; Figure 3 Schematic diagram of the structure of a reinforcement beam provided in an exemplary embodiment of the present disclosure.

[0018] Description of Reference Numerals 1-longitudinal beam portion; 11-longitudinal beam; 12-plug; 2-cross beam portion; 21-front cross beam; 22-rear cross beam; 3-reinforcement beam; 31-second mounting hole; 4-anti-collision portion; 41-anti-collision beam; 42-slot; 5-frame structure; 6-shock tower; 7-fastener. DETAILED DESCRIPTION

[0019] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0020] In the present disclosure, unless otherwise stated, directional words such as "up", "down", "top", "front", "rear", "left", and "right" are defined according to the usage habits of the rear floor frame. Specifically, up and down and top may refer to the longitudinal direction of the vehicle, front and back may refer to the driving direction of the vehicle, and left and right may refer to the lateral direction of the vehicle. For details, please refer to Figure 1 , "inside" and "outside" refer to the inside and outside of the corresponding component outline. In addition, the terms "first", "second", etc. used in this disclosure are to distinguish one element from another element and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0021] Reference Figure 1-Figure 3 The present disclosure provides a rear floor frame, which may include a longitudinal beam portion 1, a cross beam portion 2, a reinforcing beam 3 and an anti-collision portion 4. The longitudinal beam portion 1 and the cross beam portion 2 are constructed as an integrally formed frame structure 5, and the frame structure 5 generally has a square profile, so that there is no connection point connecting the longitudinal beam portion 1 and the cross beam portion 2 on the frame structure 5, which greatly improves the strength and rigidity of the frame structure 5, so that it can withstand a larger load and has a stronger anti-deformation ability. The reinforcing beam 3 can be connected to the longitudinal beam portion 1 in the transverse direction and is located on the straight bisector of the longitudinal beam portion 1. Such a design makes the longitudinal beam portion 1 more uniformly and symmetrically stressed, which can effectively reduce the risk of distortion and deformation of the longitudinal beam portion 1 due to uneven stress, further improve the torsion resistance of the entire rear floor frame, and ensure that the vehicle can maintain a stable structural state under various dynamic driving conditions. At the same time, the reinforcing beam 3 can also provide key support for the frame structure 5, so that the frame structure 5 is more uniform and stable when subjected to external forces, effectively ensuring the structural safety of the rear floor frame. The anti-collision part 4 can be detachably connected to the rear side of the longitudinal beam part 1, so as to effectively simplify the installation process of the anti-collision part 4 and the frame structure 5, reduce the dependence on professionals, shorten the installation time, and more conveniently troubleshoot and replace parts during maintenance. It can also flexibly adjust the interior layout of the vehicle and improve space utilization.

[0022] Through the above technical solution, the rear floor frame is composed of an integrally formed frame structure 5, a transversely connected reinforcing beam 3 and a detachable anti-collision part 4. While improving the structural strength, shock absorption effect and safety of the rear floor frame, it simplifies the installation and maintenance procedures of the rear floor frame and optimizes space utilization.

[0023] Reference Figure 1 and Figure 2 The longitudinal beam portion 1 may include two longitudinal beams 11 located on both sides, and the two longitudinal beams 11 may be symmetrically arranged in the left-right direction. The anti-collision portion 4 may include two anti-collision beams 41 connected to the rear sides of the two longitudinal beams 11 in a one-to-one correspondence. When the vehicle is hit from the rear or other directions, the anti-collision beams 41 can effectively absorb the impact force, thereby preventing the longitudinal beams 11 from shrinking and deforming, and at the same time avoiding the problem of stress concentration on the rear floor frame, so that the entire structure can better withstand and disperse the impact force, reducing the possibility of deformation and damage of the frame structure 5. One of the two ends of the anti-collision beam 41 and the longitudinal beam 11 that are close to each other can be provided with a slot 42 with an opening facing the other, and the other can be provided with a plug 12 for matching with the slot 42. The anti-collision beam 41 and the longitudinal beam 11 are connected by matching with the plug 12 and the slot 42, so that the connection between the anti-collision beam 41 and the longitudinal beam 11 is more convenient. When the anti-collision beam 41 or the longitudinal beam 11 is damaged, maintenance personnel can more easily separate the damaged anti-collision beam 41 or the longitudinal beam 11 and replace it separately without causing too much impact on other undamaged components. While ensuring the reliability of the connection, the maintenance workload and maintenance time are reduced, the maintenance cost is reduced, and it is also conducive to the realization of universal design of components.

[0024] Reference Figure 1 and Figure 2 , the end of the anti-collision beam 41 can be constructed as a C-shaped structure. It should be noted that the end refers to the end position of the anti-collision beam 41 close to the longitudinal beam 11. The C-shaped structure can be used as a slot 42, and the plug 12 can be inserted into the slot 42 through the opening of the C-shaped structure to simplify the installation process of the slot 42 and the plug 12 and reduce the difficulty of matching the two. The outer contour structure of the end of the longitudinal beam 11 close to the anti-collision beam 41 can be matched with the inner contour structure of the C-shaped structure to form a plug 12. That is to say, the end of the longitudinal beam 11 close to the anti-collision beam 41 can be formed as a plug 12. At the same time, since the slot 42 and the plug 12 are connection structures formed on each beam body, it not only reduces the use of parts, but also further improves the reliability of the matching between the plug 12 and the slot 42. In addition, since the outer contour structure of the plug 12 matches the inner contour structure of the slot 42, a tighter fit can be formed between the plug 12 and the slot 42, which improves the connection accuracy between the anti-collision beam 41 and the longitudinal beam 11, and can also effectively avoid the anti-collision beam 41 and the longitudinal beam 11 from loosening or falling off.

[0025] Reference Figure 1 and Figure 2 The anti-collision part 4 may further include two groups of first mounting holes formed on the plug 12 and the slot 42 in a one-to-one correspondence, and the two groups of first mounting holes may be used for the fasteners 7 to penetrate in sequence to connect the plug 12 and the slot 42. In the present disclosure, the first mounting holes may be formed as threaded holes, and the number of the first mounting holes on the plug 12 and the slot 42 may be multiple, respectively, and the fasteners 7 may be flow drill screws, so that the fasteners 7 have the characteristics of flow drill screws, thereby ensuring the firmness of the connection between the plug 12 and the slot 42, so as to improve the connection strength between the anti-collision beam 41 and the longitudinal beam 11, thereby improving the ability of the rear floor frame to withstand external forces such as vibration and impact.

[0026] Reference Figure 1 The longitudinal beam 11 can be an upwardly raised arched beam. The arched structure can more efficiently absorb and filter vibrations and impacts from the road surface, thereby ensuring the structural stability of the longitudinal beam 11. In addition, it can also free up more installation space under the rear floor frame. The cross beam portion 2 can include a rear cross beam 22 and a front cross beam 21, wherein the rear cross beam 22 and the front cross beam 21 can be connected to the ends of the two arched beams at intervals, that is, the two ends of the front cross beam 21 can be connected to the front ends of the two arched beams, respectively, and the two ends of the rear cross beam 22 can be connected to the rear ends of the two arched beams, respectively, to form a simple and relatively regular quadrilateral frame structure 5, thereby facilitating the design and processing of molds when manufacturing the frame structure 5. At the same time, through the mutual support of the beams, the torsional performance of the frame structure 5 is effectively improved, which can better cope with the complex forces during vehicle driving. The reinforcing beam 3 can be connected to the top of the arched beam and located on the symmetry axis of the quadrilateral frame structure 5. This design makes the frame structure 5 more integrated, can evenly disperse the external force, reduce deformation, and the reinforcing beam 3 further strengthens the stability of the frame structure on the symmetry axis. In addition, through the cooperation of the reinforcing beam 3 and the arched beam, the bending resistance of the frame structure 5 is effectively improved. When the frame structure 5 is hit by external force, the mutual restraint of each beam can effectively prevent the local deformation of the rear floor frame from being too large.

[0027] Reference Figure 1 , the number of the front cross beams 21 can be two, and the two front cross beams 21 can be arranged at intervals along the extension direction of the longitudinal beam 11, that is, the two front cross beams 21 are arranged at intervals along the front-to-back direction. By setting a plurality of front cross beams 21, the load can be effectively dispersed to effectively improve the anti-deformation and anti-twisting capabilities of the rear floor frame, making the overall structure of the vehicle more stable. It should be noted that in the actual installation and production process, the number of the front cross beams 21 can be greater than two, and the present disclosure does not limit this. The design of multiple front cross beams 21 can also provide more installation points and supports for other components of the vehicle, making the layout of the components at the front end of the vehicle more reasonable and compact.

[0028] Reference Figure 1-Figure 3 The reinforcing beam 3 and the arched beam can be connected by bolts, a second mounting hole 31 can be formed on the reinforcing beam 3, and a third mounting hole can be formed at a position of the arched beam corresponding to the second mounting hole 31. The second mounting hole 31 and the third mounting hole can be respectively constructed as threaded holes, and the bolts can pass through the second mounting hole 31 and the third mounting hole in sequence to connect the arched beam and the reinforcing beam 3. In the present disclosure, the bolts can be flow drill screws, thereby ensuring the firmness of the connection between the arched beam and the reinforcing beam 3 so that they can effectively withstand external forces such as vibration and impact.

[0029] According to some embodiments provided by the present disclosure, the frame structure 5 can be integrally formed by die-casting. This molding method makes the overall structure of the frame structure 5 more continuous and complete, and can more evenly transmit and disperse stress when subjected to force, thereby improving the overall strength and rigidity of the frame structure 5, improving the reliability and safety of the product, and complying with the lightweight design principle.

[0030] Reference Figure 1 and Figure 2 The rear floor frame may further include a shock-absorbing tower 6, which may be integrally formed at one end of the longitudinal beam 11 close to the anti-collision beam 41, and the corresponding positions of the two longitudinal beams 11 may be respectively formed with shock-absorbing towers 6, so as to better share the impact force during a collision, and the shock-absorbing tower protrudes upward from the longitudinal beam 11, which can make the entire vehicle body structure more stable when subjected to force, enhance the vehicle's anti-deformation ability, protect the safety of the occupants in the vehicle, and at the same time, is beneficial to improving the utilization rate of the vehicle's internal space.

[0031] According to a second aspect of the present disclosure, a vehicle is provided. The vehicle includes the rear floor frame provided by the present disclosure and has all the beneficial effects of the rear floor frame, which will not be described in detail here.

[0032] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0033] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0034] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A rear floor frame, characterized in that: It includes a longitudinal beam portion, a cross beam portion, a reinforcing beam and an anti-collision portion, wherein the longitudinal beam portion and the cross beam portion are constructed as an integrally formed frame structure, the reinforcing beam is connected to the longitudinal beam portion in the transverse direction and is located on the vertical bisector of the longitudinal beam portion, and the anti-collision portion is detachably connected to the rear side of the longitudinal beam portion.

2. The rear floor frame according to claim 1, characterized in that: The longitudinal beam portion includes two longitudinal beams located at both sides, and the anti-collision portion includes two anti-collision beams connected to the rear sides of the two longitudinal beams in a one-to-one correspondence. Wherein, one of the two ends of the anti-collision beam and the longitudinal beam close to each other is provided with a slot opening toward the other, and the other is provided with a plug for matching with the slot.

3. The rear floor frame according to claim 2, characterized in that: The end of the anti-collision beam is configured as a C-shaped structure to serve as the slot, and the outer contour of the end of the longitudinal beam close to the anti-collision beam matches the inner contour of the C-shaped structure to form the plug.

4. The rear floor frame according to claim 2 or 3, characterized in that: The anti-collision portion further includes two groups of first mounting holes formed on the plug and the slot in a one-to-one correspondence, and the two groups of first mounting holes are used for fasteners to pass through in sequence to connect the plug and the slot.

5. The rear floor frame according to claim 3, characterized in that: The longitudinal beam is an upwardly raised arched beam, and the cross beam portion includes a rear cross beam and a front cross beam, wherein the rear cross beam and the front cross beam are respectively connected to the ends of two arched beams at intervals to form the frame structure, and the reinforcing beam is connected to the top position of the arched beam.

6. The rear floor frame according to claim 5, characterized in that: The number of the front cross beams is two, and the cross beams are arranged at intervals along the extending direction of the longitudinal beams.

7. The rear floor frame according to claim 5, characterized in that: The reinforcing beam is connected to the arched beam by bolts.

8. The rear floor frame according to claim 1, characterized in that: The frame structure is integrally formed by die-casting.

9. The rear floor frame according to claim 5, characterized in that: A shock absorbing tower is also included. The shock absorbing tower is formed at one end of the longitudinal beam close to the anti-collision beam and protrudes upward from the longitudinal beam.

10. A vehicle, characterized in that: It comprises a rear floor frame according to any one of claims 1-9.

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