Side collision floor frame structure

Abstract

The utility model discloses a side collision floor frame structure which comprises two cross beams arranged in parallel and C-opening clamping seats fixed to the two ends of the two cross beams, a longitudinal beam is welded between the two C-opening clamping seats in the same Y-axis direction, U-shaped arms are welded to the surfaces of the cross beams, and the U-shaped arms are welded to the surfaces of the cross beams. An underneath multi-rod type anti-twisting structure used for enabling the extending directions of the cross beams to be perpendicular to each other is installed between the two U-shaped arms, and a plurality of anti-twisting beams which are arranged at equal intervals and perpendicular to the underneath multi-rod type anti-twisting structure are welded between the two longitudinal beams. According to the anti-torsion floor frame structure, the anti-torsion beams and the underlying multi-rod type anti-torsion structures are mutually and vertically staggered, so that possible torsion force and lateral force in the running process of a vehicle can be more effectively resisted through the vertically staggered arrangement mode, and therefore the anti-torsion performance of the floor frame structure is improved, and the service life of the floor frame structure is prolonged. And meanwhile, the anti-torsion beams and the lower multi-rod type anti-torsion structure are beneficial to uniformly dispersing torsion force, and the possibility of local stress concentration of the frame structure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body frames, and particularly relates to a side impact floor frame structure. Background Technique

[0002] The rear floor frame structure of an automobile is used to support and connect various important components of the vehicle, and also improves the overall rigidity and safety of the vehicle through optimized design. This type of floor frame structure is mainly composed of long beams and cross beams. The long beams are responsible for bearing longitudinal loads and maintaining front-back balance, while the cross beams add additional support and rigidity to the front, rear, and sides of the chassis. The reinforcement plates and anti-collision beams further enhance its anti-torsion and anti-collision capabilities, protecting the safety of passengers in accidents. When designing, it is necessary to balance weight and strength, and at the same time consider space utilization efficiency and manufacturing cost to ensure that the structure is both lightweight and efficient; for example, an automobile rear floor frame structure disclosed in the authorized announcement number CN219096834U, including a frame body, and a plurality of adjusting devices are provided on the surface of the frame body. The adjusting device includes a first placement block, the first placement block is fixedly connected to the frame body, a first pin is inserted on the surface of the first placement block, a reinforcing rib is clamped on the surface of the first pin, and a second placement block is clamped at the end of the reinforcing rib away from the first placement block. A second pin is inserted on the surface of the second placement block. By using the adjusting device, the number of reinforcing ribs on the frame body can be quickly adjusted, so as to facilitate the frame body to adapt to the needs of users. However, in this technical solution, the anti-twisting performance of the upper and lower parts of the frame is poor. When the vehicle passes through a curved or uneven road surface, the upper structure and the lower structure are at risk of twisting and deforming. In extreme cases, excessive twisting may cause the floor frame structure to be damaged or fail. Content of the Utility Model

[0003] The purpose of the utility model is to provide a side impact floor frame structure to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A side impact floor frame structure includes two parallel cross beams and C-port card seats fixed at both ends of the two cross beams. A longitudinal beam is welded between the two C-port card seats in the same Y-axis direction. A U-shaped arm is welded on the surface of the cross beam. A lower multi-bar anti-twisting structure perpendicular to the extending direction of the cross beam is installed between the two U-shaped arms. A plurality of equally spaced anti-torsion beams perpendicular to the lower multi-bar anti-twisting structure are welded between the two longitudinal beams.

[0005] Preferably, bottom blocks are integrally formed on both sides of the bottom end of the cross beam.

[0006] Preferably, a plurality of through holes extending downward are provided at the top end of the longitudinal beam.

[0007] Preferably, a first longitudinal connecting arm and a second longitudinal connecting arm are fixed between the two cross beams, and the first longitudinal connecting arm and the second longitudinal connecting arm are symmetrically structured with respect to the vertical central reference plane of the cross beam.

[0008] Preferably, the cross-sectional shape of the anti-torsion beam is rectangular, and rectangular through grooves for the anti-torsion beam to pass through are provided on the surfaces of the first longitudinal connecting arm and the second longitudinal connecting arm.

[0009] Preferably, the lower multi-rod anti-twisting structure includes lips integrally formed at the top and bottom of the U-shaped arm, and a plurality of longitudinal axes fixed between the two lips in the same Y-axis direction.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing structures such as an anti-torsion beam and a lower multi-rod anti-twisting structure that cooperate with each other, the upper and lower parts of the frame are supported by the anti-torsion beam and the lower multi-rod anti-twisting structure. The anti-torsion beam and the lower multi-rod anti-twisting structure are perpendicular and intersecting with each other. Through the perpendicular and intersecting arrangement, it can more effectively resist the torsional force and lateral force that may occur during the driving process of the vehicle, thereby improving the anti-torsion performance of the floor frame structure. At the same time, the anti-torsion beam and the lower multi-rod anti-twisting structure help to evenly disperse the torsional force and reduce the possibility of local stress concentration in the frame structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the front view structural schematic diagram of the present utility model;

[0012] Figure 2 is the three-dimensional structural schematic of the present utility model Figure 1 ;

[0013] Figure 3 is the top view structural schematic diagram of the present utility model;

[0014] Figure 4 is the three-dimensional structural schematic of the present utility model Figure 2 。

[0015] In the figure: 1, cross beam; 2, bottom block; 3, C-port card seat; 4, longitudinal beam; 401, through hole; 5, U-shaped arm; 6, lower multi-rod anti-twisting structure; 601, lip; 602, longitudinal axis; 7, first longitudinal connecting arm; 8, second longitudinal connecting arm; 9, anti-torsion beam. DETAILED DESCRIPTION OF THE INVENTION

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a side impact floor frame structure, including two parallel cross beams 1 and C-port card seats 3 fixed at both ends of the two cross beams 1. A longitudinal beam 4 is welded between the two C-port card seats 3 in the same Y-axis direction. Bottom blocks 2 are integrally formed on both sides of the bottom end of the cross beam 1;

[0018] A U-shaped arm 5 is welded on the surface of the cross beam 1. A lower multi-bar anti-twist structure 6 perpendicular to the extending direction of the cross beam 1 is installed between the two U-shaped arms 5. A plurality of equally spaced anti-twist beams 9 perpendicular to the lower multi-bar anti-twist structure 6 are welded between the two longitudinal beams 4;

[0019] A plurality of through holes 401 extending downward are provided at the top end of the longitudinal beam 4. Workers use the through holes 401 provided at the top end of the longitudinal beam 4 and bolts to bolt to the rear vehicle frame, so that the frame structure is fixedly connected to the vehicle body;

[0020] A first longitudinal connecting arm 7 and a second longitudinal connecting arm 8 are fixed between the two cross beams 1. The first longitudinal connecting arm 7 and the second longitudinal connecting arm 8 are symmetrically structured with respect to the vertical central reference plane of the cross beam 1. The first longitudinal connecting arm 7 and the second longitudinal connecting arm 8 play a role in connecting the two cross beams 1, so that an effective connection is formed between the two cross beams 1, enhancing the overall stability and strength of the frame structure;

[0021] The cross-section shape of the anti-twist beam 9 is rectangular. Rectangular through grooves for the anti-twist beam 9 to pass through are provided on the surfaces of the first longitudinal connecting arm 7 and the second longitudinal connecting arm 8;

[0022] The lower multi-bar anti-twist structure 6 includes lips 601 integrally formed at the top and bottom ends of the U-shaped arm 5, and a plurality of longitudinal axes 602 fixed between the two lips 601 in the same Y-axis direction. Since the anti-twist beam 9 and the longitudinal axes 602 are perpendicular and intersect with each other to form a dense grid-like structure, the torsional force and lateral force that may occur during vehicle driving can be resisted;

[0023] The U-shaped arm 5 is welded to the cross beam 1. The plurality of longitudinal axes 602 can effectively resist the torsion and deformation that the bottom structure may face, especially the torsional force when the vehicle passes through bumpy roads or curves, and effectively absorb and disperse the impact force generated during frame torsion.

[0024] When the embodiment of the present application is in use, first, the basic framework of the floor frame structure is composed of two cross beams 1 and two longitudinal beams 4. The relative ends of the cross beam 1 and the longitudinal beam 4 are connected through the C-port card seat 3. The C-port card seat 3 at the connection is used as a strong structural support point, which can stably support the cross beam during vehicle operation, reducing the vibration and displacement that may occur during driving. The upper and lower parts of the basic framework are supported by the anti-torsion beam 9 and the lower multi-bar anti-torsion structure 6. The anti-torsion beam 9 and the lower multi-bar anti-torsion structure 6 are perpendicular and staggered with each other. Through this perpendicular and staggered arrangement, it can more effectively resist the torsional force and lateral force that may occur during vehicle driving, thereby improving the anti-torsion performance of the floor frame structure. At the same time, the anti-torsion beam 9 and the lower multi-bar anti-torsion structure 6 help to evenly disperse the torsional force, reducing the possibility of local stress concentration in the frame structure.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A side impact floor frame structure, characterized in that: The invention comprises two parallel cross beams (1) and C-port holders (3) fixed at both ends of the two cross beams (1); a longitudinal beam (4) is welded between the two C-port holders (3) in the same Y-axis direction; a U-shaped arm (5) is welded on the surface of the cross beam (1); a lower multi-rod anti-twist structure (6) for mutually perpendicular extension directions of the cross beams (1) is installed between the two U-shaped arms (5); and a plurality of anti-twist beams (9) at equal intervals and mutually perpendicular to the lower multi-rod anti-twist structure (6) are welded between the two longitudinal beams (4).

2. A side impact floor frame structure according to claim 1, characterized in that: Bottom blocks (2) are integrally formed on both sides of the bottom end of the crossbeam (1).

3. The side impact floor frame structure according to claim 1, characterized in that: The top end of the longitudinal beam (4) is provided with a plurality of through holes (401) extending downward and penetrating therethrough.

4. The side impact floor frame structure according to claim 1, characterized in that: A first longitudinal connecting arm (7) and a second longitudinal connecting arm (8) are fixed between the two cross beams (1); the first longitudinal connecting arm (7) and the second longitudinal connecting arm (8) are symmetrical structures with respect to the vertical center reference plane of the cross beam (1).

5. The side impact floor frame structure according to claim 4, characterized in that: The cross-sectional shape of the anti-torsion beam (9) is rectangular, and the surfaces of the first longitudinal connecting arm (7) and the second longitudinal connecting arm (8) are provided with rectangular through grooves for the anti-torsion beam (9) to pass through.

6. The side impact floor frame structure according to claim 1, characterized in that: The lower multi-rod anti-twisting structure (6) comprises lips (601) integrally formed at the top and bottom ends of the U-shaped arm (5), and a plurality of longitudinal axes (602) fixed between the two lips (601) in the same Y-axis direction.

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